/* roulang page: index */
/* ===================== Design Tokens ===================== */
        :root {
            --green: #0B7A4B;
            --green-dark: #075A35;
            --green-light: #E7F2ED;
            --green-soft: #F0F7F4;
            --accent: #FF6A00;
            --accent-dark: #E85E00;
            --dark-bg: #0C1812;
            --dark-bg-2: #14251C;
            --ink: #17211B;
            --muted: #5A675E;
            --pale: #8A958D;
            --line: #E4E8E2;
            --bg-soft: #F5F7F4;
            --white: #FFFFFF;
            --radius-lg: 18px;
            --radius: 15px;
            --radius-sm: 10px;
            --shadow: 0 12px 30px rgba(12, 40, 25, 0.07);
            --shadow-hover: 0 18px 40px rgba(12, 40, 25, 0.12);
            --shadow-dark: 0 20px 44px rgba(0, 0, 0, 0.22);
            --sect-space: 96px;
            --sect-space-md: 72px;
            --sect-space-sm: 56px;
        }

        /* ===================== Base ===================== */
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
            background: var(--white);
            color: var(--ink);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        h1,
        h2,
        h3,
        h4,
        h5 {
            margin: 0 0 12px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--ink);
            letter-spacing: -0.01em;
        }
        p {
            margin: 0 0 14px;
        }
        a,
        a:hover {
            text-decoration: none;
            color: inherit;
            outline: none;
        }
        img {
            max-width: 100%;
            height: auto;
            border: 0;
            vertical-align: middle;
        }
        ul,
        ol {
            padding: 0;
            margin: 0;
            list-style: none;
        }
        .container {
            max-width: 1200px;
        }

        /* ===================== Buttons ===================== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            border-radius: 999px;
            padding: 11px 28px;
            border: 2px solid transparent;
            transition: all .25s ease;
            white-space: nowrap;
            line-height: 1.4;
            font-size: 15px;
        }
        .btn:focus-visible,
        .form-control:focus-visible,
        .form-check-input:focus-visible {
            outline: 3px solid rgba(255, 106, 0, .5);
            outline-offset: 3px;
        }
        a:focus-visible,
        .nav-link:focus-visible {
            outline: 3px solid rgba(11, 122, 75, .35);
            outline-offset: 3px;
            border-radius: 6px;
        }
        .btn-green {
            background: var(--green);
            color: #fff;
            box-shadow: 0 10px 24px rgba(11, 122, 75, .24);
        }
        .btn-green:hover {
            background: var(--green-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 16px 34px rgba(11, 122, 75, .3);
        }
        .btn-orange {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 10px 26px rgba(255, 106, 0, .28);
        }
        .btn-orange:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 16px 36px rgba(255, 106, 0, .32);
        }
        .btn-white {
            background: #fff;
            color: var(--ink);
            border: 2px solid #F5E3D7;
        }
        .btn-white:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
            background: #FFF9F5;
        }
        .btn-outline {
            background: transparent;
            color: var(--green);
            border: 2px solid rgba(11, 122, 75, .4);
        }
        .btn-outline:hover {
            border-color: var(--green);
            background: var(--green-light);
            transform: translateY(-1px);
        }
        .btn-lg {
            padding: 15px 36px;
            font-size: 17px;
        }

        /* ===================== Tag ===================== */
        .badge-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 30px;
            background: #E9F3EC;
            color: var(--green-dark);
            font-size: 13px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: .02em;
        }
        .badge-orange {
            background: #FEEADB;
            color: var(--accent-dark);
        }
        .badge-dark {
            background: rgba(255, 255, 255, .16);
            color: #d8e4dc;
            border: 1px solid rgba(255, 255, 255, .18);
        }

        /* ===================== Section ===================== */
        .section-pad {
            padding-top: var(--sect-space);
            padding-bottom: var(--sect-space);
        }
        .bg-soft {
            background: var(--bg-soft);
        }
        .section-head {
            max-width: 760px;
            margin: 0 auto 56px;
            text-align: center;
        }
        .section-head .eyebrow {
            display: inline-block;
            font-weight: 700;
            color: var(--green);
            font-size: 14px;
            letter-spacing: .14em;
            background: #E9F3EC;
            padding: 6px 18px;
            border-radius: 40px;
            margin-bottom: 16px;
        }
        .section-head h2 {
            font-size: 30px;
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--muted);
            font-size: 16px;
            margin: 0;
        }

        /* ===================== Header / Nav ===================== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1020;
            background: #fff;
            border-bottom: 1px solid var(--line);
            transition: box-shadow .2s;
        }
        .site-header.scrolled {
            box-shadow: 0 6px 20px rgba(15, 40, 25, .06);
        }
        .site-header .navbar {
            min-height: 72px;
            padding: 8px 0;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--ink);
            font-weight: 700;
            letter-spacing: -0.02em;
        }
        .brand-logo .brand-mark {
            width: 40px;
            height: 40px;
            border-radius: 13px;
            background: linear-gradient(145deg, var(--green) 0%, #17A05E 100%);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 8px 16px rgba(11, 122, 75, .2);
            flex: none;
        }
        .brand-logo .brand-text {
            font-size: 19px;
            line-height: 1.2;
            color: var(--ink);
        }
        .navbar-nav {
            column-gap: 10px;
        }
        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 600;
            color: #4a5a50;
            padding: 10px 16px;
            border-radius: 8px;
            transition: all .2s;
            position: relative;
        }
        .navbar-nav .nav-link:hover {
            color: var(--green);
            background: var(--green-soft);
        }
        .navbar-nav .nav-link.active {
            color: var(--green);
            background: transparent;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 16px;
            right: 16px;
            height: 3px;
            border-radius: 3px;
            background: var(--green);
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-pill {
            display: flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-soft);
            border-radius: 999px;
            padding: 7px 14px;
            width: 230px;
            border: 1px solid #EDF1EA;
            transition: border .25s, background .25s;
        }
        .search-pill input {
            border: 0;
            background: transparent;
            outline: none;
            width: 100%;
            font-size: 14px;
            color: var(--ink);
        }
        .search-pill input::placeholder {
            color: var(--pale);
        }
        .search-pill i {
            color: var(--pale);
            font-size: 13px;
        }
        .search-pill:focus-within {
            border-color: var(--green);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(11, 122, 75, .08);
        }
        .site-header .download-btn {
            padding: 10px 22px;
            border-radius: 999px;
            font-size: 14px;
        }
        .navbar-toggler {
            border: none;
            font-size: 22px;
            padding: 6px 10px;
            color: var(--ink);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(11, 122, 75, .2);
        }

        /* ===================== Hero ===================== */
        .hero {
            background: var(--bg-soft);
            position: relative;
            overflow: hidden;
            min-height: 540px;
            display: flex;
            align-items: center;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center 22% / cover no-repeat;
            z-index: 1;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(96deg, #F5F7F4 8%, rgba(245, 247, 244, .74) 52%, rgba(245, 247, 244, .92) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 5;
            padding-top: 96px;
            padding-bottom: 64px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .78);
            border: 1px solid rgba(11, 122, 75, .13);
            border-radius: 999px;
            backdrop-filter: blur(4px);
            padding: 6px 17px;
            font-size: 14px;
            color: var(--green-dark);
            font-weight: 600;
            margin-bottom: 24px;
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero-title {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.22;
            letter-spacing: -0.02em;
            max-width: 640px;
            margin-bottom: 20px;
            color: #112016;
        }
        .hero-title .text-accent {
            color: var(--green);
        }
        .hero-desc {
            max-width: 526px;
            font-size: 17px;
            color: var(--muted);
            line-height: 1.85;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }
        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            margin-top: 12px;
        }
        .metric-item {
            background: rgba(255, 255, 255, .85);
            border-radius: 14px;
            padding: 11px 20px;
            backdrop-filter: blur(6px);
            border: 1px solid #EDF3EC;
            display: flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 8px 22px rgba(15, 40, 25, .05);
        }
        .metric-item i {
            font-size: 22px;
            color: var(--accent);
        }
        .metric-item strong {
            display: block;
            font-size: 17px;
            line-height: 1.15;
            color: var(--ink);
        }
        .metric-item span {
            font-size: 12.5px;
            color: var(--pale);
        }
        .hero-visual {
            position: relative;
            z-index: 5;
            padding: 50px 0;
        }
        .hero-visual .sport-badge-card {
            background: rgba(255, 255, 255, .85);
            border: 1px solid #EDF3EA;
            border-radius: 20px;
            backdrop-filter: blur(10px);
            padding: 28px;
            box-shadow: var(--shadow-hover);
            max-width: 440px;
            margin-left: auto;
        }
        .hero-visual .sport-badge-card i {
            font-size: 46px;
            color: var(--green);
            margin-bottom: 16px;
        }
        .hero-visual .sport-badge-card h4 {
            font-size: 20px;
            margin-bottom: 12px;
        }
        .hero-visual .sport-badge-card small {
            font-size: 12px;
            color: var(--pale);
            letter-spacing: .04em;
            text-transform: uppercase;
        }

        /* old nav style compatibility for needed area */
        .scroll-link-down {
            position: absolute;
            bottom: -22px;
            left: 50%;
            transform: translateX(-50%);
            width: 44px;
            height: 44px;
            background: #fff;
            border-radius: 50%;
            box-shadow: 0 8px 22px rgba(12, 40, 25, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--green);
            z-index: 5;
        }

        /* ===================== App Value 2+1 ===================== */
        .value-layout .main-value-card {
            background: linear-gradient(150deg, var(--green-soft) 0%, #FFFFFF 100%);
            border-radius: var(--radius-lg);
            border: 1px solid #EAF3EB;
            padding: 34px;
            height: 100%;
            min-height: 320px;
            position: relative;
            overflow: hidden;
            transition: box-shadow .3s, transform .3s;
        }
        .value-layout .main-value-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .main-value-card .mark {
            width: 58px;
            height: 58px;
            background: var(--green);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
            margin-bottom: 22px;
            box-shadow: 0 12px 26px rgba(11, 122, 75, .25);
        }
        .main-value-card h3 {
            font-size: 22px;
            margin-bottom: 12px;
        }
        .main-value-card p {
            color: var(--muted);
            line-height: 1.8;
        }
        .value-layout .sub-value-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 26px;
            transition: all .3s;
            height: calc(50% - 14px);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .value-layout .sub-value-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: #CBE4D3;
            transform: translateY(-3px);
        }
        .value-layout .sub-value-card:hover i {
            background: var(--green);
            color: #fff;
        }
        .sub-value-card .svc-icon {
            width: 48px;
            height: 48px;
            background: var(--green-light);
            color: var(--green);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
            transition: all .3s;
        }
        .sub-value-card h4 {
            font-size: 17px;
            margin-bottom: 8px;
        }
        .sub-value-card p {
            color: var(--muted);
            font-size: 14px;
            margin-bottom: 0;
        }

        /* category quick road */
        .category-road .cat-card {
            background: #fff;
            border-radius: 15px;
            border: 1px solid var(--line);
            padding: 20px 22px;
            height: 100%;
            transition: all .25s;
            display: flex;
            gap: 14px;
            align-items: center;
        }
        .category-road .cat-card:hover {
            border-color: #BFDDCB;
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .category-road .cat-btn-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--green-light);
            color: var(--green);
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex: none;
        }
        .category-road .cat-card:hover .cat-btn-icon {
            background: var(--green);
            color: #fff;
        }
        .category-road .cat-btn-txt small {
            display: block;
            color: var(--pale);
            font-size: 12px;
            font-weight: 400;
        }
        .category-road .cat-btn-txt strong {
            color: var(--ink);
            font-size: 16px;
            font-weight: 600;
        }

        /* ===================== News Area ===================== */
        .latest-news-section {
            position: relative;
            background: var(--bg-soft);
        }
        .post-card {
            background: #fff;
            border: 1px solid #e9efe7;
            border-radius: var(--radius-lg);
            height: 100%;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all .3s ease;
        }
        .post-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-5px);
        }
        .post-card .post-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #edf1ec;
        }
        .post-card .post-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s;
        }
        .post-card:hover .post-thumb img {
            transform: scale(1.04);
        }
        .post-card .post-thumb .badge-tag {
            position: absolute;
            left: 16px;
            top: 16px;
            background: #fff;
            box-shadow: 0 4px 16px rgba(0, 0, 0, .08);
        }
        .post-card .post-content {
            padding: 20px 20px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .post-card .post-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .post-card .post-title a:hover {
            color: var(--green);
        }
        .post-card .post-desc {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card .post-meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--pale);
            font-size: 13px;
        }
        .news-empty-state {
            background: #F0F6F1;
            border: 1px dashed #CBE3D2;
            border-radius: 20px;
            padding: 64px 20px;
            text-align: center;
            color: var(--muted);
            margin-top: 8px;
        }
        .news-empty-state i {
            display: block;
            font-size: 40px;
            color: #a9c5b2;
            margin-bottom: 14px;
        }
        .news-empty-state p {
            margin: 0;
            font-weight: 500;
        }

        /* ===================== App Screenshot Carousel ===================== */
        .app-demo-section {
            background: var(--dark-bg);
            color: #e8f0ea;
            position: relative;
            overflow: hidden;
        }
        .app-demo-section::before {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            right: -180px;
            top: -180px;
            background: radial-gradient(circle, rgba(255, 106, 0, .08) 0%, transparent 70%);
        }
        .app-demo-section h2,
        .app-demo-section .section-head p {
            color: #d8e4dc;
        }
        .app-demo-section .section-head .eyebrow {
            background: rgba(255, 255, 255, .12);
            color: #92F2C0;
        }
        .custom-carousel .carousel-indicators {
            position: static;
            margin: 24px 0 0;
            gap: 8px;
        }
        .custom-carousel .carousel-indicators [data-bs-target] {
            width: 24px;
            height: 4px;
            background-color: #7d8f86;
            border: none;
            opacity: 1;
            border-radius: 99px;
            margin: 0;
            transition: all .25s ease;
        }
        .custom-carousel .carousel-indicators [data-bs-target].active {
            width: 48px;
            background-color: var(--accent);
        }
        .custom-carousel .carousel-inner {
            overflow: visible;
            border-radius: var(--radius-lg);
        }
        .demo-card {
            padding: 18px;
            height: 100%;
        }
        .phone-frame {
            background: #fff;
            border-radius: 28px;
            padding: 12px;
            box-shadow: 0 24px 60px rgba(0, 0, 0, .32);
            transition: all .35s;
            position: relative;
            max-width: 280px;
            margin: 0 auto;
        }
        .phone-frame .phone-screen {
            background: #0b2c1c;
            border-radius: 20px;
            overflow: hidden;
            aspect-ratio: 3 / 6.2;
            position: relative;
        }
        .phone-frame .phone-screen img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .carousel-control-prev,
        .carousel-control-next {
            width: 48px;
            height: 48px;
            background: #fff !important;
            opacity: 1;
            border-radius: 50%;
            top: 44%;
            box-shadow: 0 10px 24px rgba(0, 0, 0, .2);
            transform: translateY(-50%);
            color: var(--dark-bg);
            border: 0;
        }
        .carousel-control-prev:hover,
        .carousel-control-next:hover {
            background: var(--accent) !important;
            color: #fff;
        }
        .carousel-control-prev i,
        .carousel-control-next i {
            font-size: 22px;
        }
        .carousel-control-prev {
            left: -14px;
        }
        .carousel-control-next {
            right: -14px;
        }
        .demo-card-copy {
            margin-top: 18px;
            text-align: center;
        }
        .demo-card-copy strong {
            display: block;
            font-size: 18px;
            color: #fff;
            margin-bottom: 6px;
        }
        .demo-card-copy span {
            color: #9fb5a8;
            font-size: 14px;
        }

        /* ===================== System Requirement Cards ===================== */
        .system-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            height: 100%;
            overflow: hidden;
            transition: all .25s;
            padding: 30px 34px 16px;
        }
        .system-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .sys-head {
            display: flex;
            align-items: center;
            gap: 16px;
            border-bottom: 1px solid var(--line);
            padding-bottom: 20px;
            margin-bottom: 10px;
        }
        .sys-head>i {
            font-size: 42px;
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: var(--green-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--green);
        }
        .sys-head h4 {
            font-size: 20px;
            margin-bottom: 2px;
        }
        .sys-head small {
            color: var(--pale);
        }
        .spec-list li {
            padding: 12px 0;
            border-bottom: 1px dashed #E8EEE7;
            font-size: 14px;
            display: flex;
            justify-content: space-between;
            gap: 24px;
        }
        .spec-list li:last-child {
            border-bottom: none;
        }
        .spec-list li span {
            color: var(--pale);
        }
        .spec-list li b {
            color: var(--ink);
            font-weight: 600;
            text-align: right;
        }
        .more-device-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--green);
            font-weight: 500;
            font-size: 14px;
            margin-top: 8px;
        }
        .more-device-link:hover {
            color: var(--accent);
        }

        /* ===================== Evaluation Wall ===================== */
        .rating-banner {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 30px;
            border: 1px solid var(--line);
            box-shadow: var(--shadow);
            margin-bottom: 44px;
        }
        .rating-banner .score-main {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .rating-banner .num-score {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.1;
            color: var(--ink);
        }
        .stars {
            color: #FFB30B;
            font-size: 18px;
        }
        .review-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 26px;
            min-height: 100%;
            box-shadow: 0 8px 24px rgba(15, 40, 25, .05);
            transition: all .25s;
        }
        .review-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .review-card .reviewer {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }
        .reviewer .avatar {
            width: 42px;
            height: 42px;
            background: var(--green-light);
            color: var(--green);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
        }
        .reviewer .avatar.orange {
            background: #FFF0E5;
            color: var(--accent);
        }
        .reviewer strong {
            color: var(--ink);
            display: block;
        }
        .reviewer small,
        .review-card .rev-meta {
            color: var(--pale);
            font-size: 13px;
        }
        .review-card p {
            color: #3a483f;
            font-size: 15px;
            line-height: 1.8;
        }
        .review-card .rev-tags {
            display: flex;
            gap: 8px;
        }
        .review-card .rev-tags span {
            background: var(--bg-soft);
            font-size: 12px;
            color: var(--muted);
            border-radius: 30px;
            padding: 5px 12px;
        }

        /* ===================== FAQ accordion ===================== */
        .faq-custom .faq-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border .25s;
        }
        .faq-custom .faq-item:hover {
            border-color: #AFD8BF;
        }
        .faq-custom .faq-question {
            background: transparent;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            width: 100%;
            text-align: left;
            border: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: color .2s;
        }
        .faq-custom .faq-question:hover {
            color: var(--green);
        }
        .faq-custom .faq-question i {
            color: var(--green);
            transition: transform .3s;
        }
        .faq-custom .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }
        .faq-custom .faq-answer {
            padding: 0 24px 16px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
            display: none;
        }
        .faq-custom .faq-item.open .faq-answer {
            display: block;
        }
        .faq-custom .faq-item.open {
            border-color: #89CDA2;
            box-shadow: 0 8px 20px rgba(11, 122, 75, .05);
        }

        /* ===================== Download CTA ===================== */
        .download-cta {
            background: radial-gradient(1100px 500px at 80% 0%, #103023 0%, var(--dark-bg) 52%);
            color: #e9f3ed;
            padding-top: 86px;
            padding-bottom: 86px;
            position: relative;
            overflow: hidden;
            margin-top: 30px;
        }
        .download-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            opacity: .06;
        }
        .download-cta h2 {
            color: #fff;
            font-size: 32px;
        }
        .download-cta p {
            color: #a6c2b3;
            margin: 0 auto 42px;
        }
        .download-cta .dl-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }
        .dl-btns .btn {
            min-width: 175px;
        }
        .mini-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 28px;
            color: #94a89b;
            font-size: 13px;
        }
        .mini-meta span {
            display: inline-flex;
            gap: 6px;
            align-items: center;
            padding-right: 12px;
            border-right: 1px solid rgba(255, 255, 255, .16);
        }
        .mini-meta span:last-child {
            border-right: 0;
        }
        .tip-safety {
            margin-top: 18px;
            font-size: 13px;
            color: #697e71;
        }

        /* ===================== Footer ===================== */
        .site-footer {
            background: var(--dark-bg);
            color: #9fb5aa;
            font-weight: 300;
            padding: 72px 0 0;
        }
        .footer-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
            padding-bottom: 46px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand {
            display: flex;
            gap: 14px;
            align-items: center;
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            line-height: 1.2;
        }
        .footer-brand .fb-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: linear-gradient(145deg, var(--accent) 0%, #D35400 100%);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            box-shadow: 0 10px 20px rgba(255, 106, 0, .25);
        }
        .footer-appbtns {
            display: flex;
            gap: 8px;
        }
        .footer-appbtns a {
            border: 1px solid rgba(255, 255, 255, .18);
            background: rgba(255, 255, 255, .04);
            color: #DCE4DE;
            border-radius: 10px;
            padding: 8px 14px;
            font-size: 13px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all .2s;
        }
        .footer-appbtns a:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .footer-links-group {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 32px;
            padding: 44px 0;
        }
        .footer-col h5 {
            color: #ffffff;
            font-size: 15px;
            letter-spacing: .03em;
            margin-bottom: 22px;
        }
        .footer-col p {
            font-size: 14px;
            line-height: 1.8;
            color: #6d857b;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul li a {
            color: #a6beb0;
            font-size: 14px;
            transition: all .25s;
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 3px;
        }
        .footer-bottom {
            padding: 20px 0 26px;
            border-top: 1px solid rgba(255, 255, 255, .07);
            font-size: 13px;
            color: #4f6658;
        }
        .footer-bottom .d-flex {
            gap: 8px 24px;
            flex-wrap: wrap;
        }

        /* ===================== Bootstrap resets ===================== */
        .accordion-button:not(.collapsed) {
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
        }
        .btn-check:active+.btn:focus,
        .btn.active,
        .btn:active,
        .btn:focus {
            outline: 0;
            box-shadow: none;
        }

        /* ===================== Responsive ===================== */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: #fff;
                border-radius: 16px;
                padding: 16px;
                margin-top: 12px;
                box-shadow: 0 18px 50px rgba(0, 0, 0, .12);
            }
            .navbar-nav {
                gap: 2px;
            }
            .navbar-nav .nav-link {
                padding: 12px 16px;
                border-radius: 8px;
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .header-right {
                margin-top: 14px;
                padding-top: 14px;
                border-top: 1px solid var(--line);
            }
            .search-pill {
                width: auto;
                flex: 1;
            }
            .section-pad {
                padding-top: var(--sect-space-md);
                padding-bottom: var(--sect-space-md);
            }
            .footer-links-group {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-badge {
                font-size: 13px;
            }
            .carousel-control-prev {
                left: -6px;
            }
            .carousel-control-next {
                right: -6px;
            }
            .phone-frame {
                max-width: 220px;
            }
            .value-layout .sub-value-card {
                height: auto;
                margin-top: 8px;
            }
        }

        @media (max-width: 767.98px) {
            .section-head {
                margin-bottom: 34px;
            }
            .section-head h2 {
                font-size: 23px;
            }
            .hero {
                padding-bottom: 40px;
            }
            .hero-content {
                padding-top: 36px;
                padding-bottom: 0;
            }
            .hero-title {
                font-size: 26px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-visual {
                display: none;
            }
            .hero-metrics .metric-item {
                padding: 8px 12px;
            }
            .metric-item strong {
                font-size: 14px;
            }
            .metric-item span {
                font-size: 11px;
            }
            .section-pad {
                padding-top: var(--sect-space-sm) !important;
                padding-bottom: var(--sect-space-sm) !important;
            }
            .footer-links-group {
                display: grid;
                grid-template-columns: 1fr 1fr;
            }
            .footer-top {
                align-items: flex-start;
                flex-direction: column;
            }
            .dl-btns .btn {
                min-width: 145px;
            }
            .download-cta h2 {
                font-size: 24px;
            }
            .carousel-control-prev,
            .carousel-control-next {
                display: none;
            }
            .phone-frame {
                max-width: 190px;
            }
            .sys-head {
                align-items: flex-start;
            }
            .rating-banner {
                padding: 20px;
            }
            .rating-banner .num-score {
                font-size: 39px;
            }
            .why-category-main .row {
                row-gap: 12px;
            }
            .main-value-card {
                min-height: 240px;
                padding: 24px;
            }
            .category-road .cat-card {
                padding: 18px 14px;
                display: block;
            }
            .category-road .cat-btn-icon {
                width: 44px;
                height: 44px;
            }
        }

        @media (max-width: 480px) {
            .search-pill {
                width: 100%;
            }
            .brand-logo .brand-text {
                font-size: 16.5px;
            }
            .brand-logo .brand-mark {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .footer-links-group {
                grid-template-columns: 1fr;
            }
            .mini-meta {
                gap: 8px;
            }
            .mini-meta span {
                border-right: none;
                font-size: 12px;
            }
            .dl-btns .btn {
                width: 100%;
            }
            .dl-btns .btn:not(:last-child) {
                margin-bottom: 0;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-metrics {
                gap: 8px;
            }
            .hero-metrics .metric-item {
                flex: 1 1 45%;
                padding: 12px 15px;
            }
            .section-head h2 {
                font-size: 22px;
            }
        }

/* roulang page: category1 */
:root {
    --brand: #0B7A4B;
    --brand-dark: #075A3A;
    --brand-soft: #E2F2E9;
    --accent: #FF6A00;
    --accent-dark: #E85E00;
    --accent-soft: #FFF0E3;
    --bg-soft: #F4F8F5;
    --bg-dark: #0C1812;
    --bg-deep: #071A11;
    --text-main: #17211B;
    --text-body: #33443B;
    --text-muted: #5A675E;
    --text-soft: #8B968E;
    --border: #DEE6DF;
    --line: #EDF2ED;
    --radius: 18px;
    --radius-sm: 11px;
    --radius-lg: 26px;
    --shadow: 0 12px 34px rgba(18, 55, 35, 0.08);
    --shadow-hover: 0 18px 44px rgba(18, 55, 35, 0.13);
    --green-shadow: 0 12px 28px rgba(7, 122, 74, 0.24);
}

html {
    scroll-behavior: smooth;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-body);
    background: #FCFDFC;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-main);
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 0.5rem 0;
}

a {
    color: var(--brand);
    text-decoration: none;
    transition: all 0.2s ease;
}

a:hover {
    color: var(--brand-dark);
}

img {
    max-width: 100%;
    height: auto;
}

button, input {
    font-family: inherit;
}

:focus-visible {
    outline: 3px solid rgba(11, 122, 75, 0.35);
    outline-offset: 2px;
    border-radius: 4px;
}

.container {
    max-width: 1200px;
}

.section {
    padding: 88px 0;
}

.section-soft {
    background: var(--bg-soft);
}

.section-dark {
    background: var(--bg-dark);
}

.section-head {
    max-width: 720px;
    margin-bottom: 46px;
}

.section-head.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.overline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.4px;
    color: var(--brand);
    background: var(--brand-soft);
    border-radius: 999px;
    padding: 6px 14px;
    margin-bottom: 14px;
}

.overline-light {
    background: rgba(226, 242, 233, 0.14);
    color: #BDEBD3;
}

.section-title {
    font-size: 30px;
    margin-bottom: 16px;
}

.section-lead {
    margin-bottom: 0;
    color: var(--text-muted);
    font-size: 16px;
}

/* ------------------------------------------------------------
Header
------------------------------------------------------------ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1045;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(11, 122, 75, 0.08);
    box-shadow: 0 6px 22px rgba(18, 55, 35, 0.04);
}

.site-header .navbar {
    min-height: 72px;
    padding: 10px 0;
}

.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.brand-mark {
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
    color: #fff;
    font-size: 16px;
    border-radius: 12px;
    box-shadow: 0 8px 18px rgba(11, 122, 75, 0.25);
}

.brand-text {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-main);
    white-space: nowrap;
}

.navbar-collapse {
    flex-grow: 1;
}

.navbar-nav {
    gap: 4px;
}

.navbar-nav .nav-link {
    position: relative;
    display: inline-block;
    padding: 10px 13px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    border-radius: 10px;
    transition: color 0.2s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--brand);
    background: rgba(11, 122, 75, 0.05);
}

.navbar-nav .nav-link.active {
    color: var(--brand);
}

.navbar-nav .nav-link.active::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 1px;
    height: 3px;
    border-radius: 999px;
    background: var(--brand);
}

.header-right {
    align-items: center;
    gap: 12px;
}

.search-pill {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 210px;
    height: 40px;
    padding: 0 15px;
    background: #F3F7F3;
    border: 1px solid transparent;
    border-radius: 999px;
    transition: all 0.2s ease;
}

.search-pill:focus-within {
    background: #fff;
    border-color: var(--brand);
    box-shadow: 0 0 0 4px rgba(11, 122, 75, 0.1);
}

.search-pill i {
    color: var(--text-soft);
}

.search-pill input {
    width: 100%;
    border: 0;
    outline: none;
    background: transparent;
    color: var(--text-main);
    font-size: 13px;
}

.search-pill input::placeholder {
    color: var(--text-soft);
}

.navbar-toggler {
    border: 0;
    padding: 6px 10px;
    color: var(--text-main);
    font-size: 20px;
    box-shadow: none !important;
}

.navbar-toggler:hover {
    color: var(--brand);
}

/* ------------------------------------------------------------
Buttons
------------------------------------------------------------ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 999px;
    padding: 11px 22px;
    font-weight: 700;
    font-size: 15px;
    border: 1px solid transparent;
    line-height: 1.4;
    transition: all 0.22s ease;
}

.btn:active,
.btn:focus {
    box-shadow: none;
    border-color: transparent;
}

.btn i {
    font-size: 14px;
}

.btn-green {
    background: var(--brand);
    border-color: var(--brand);
    color: #fff;
    box-shadow: var(--green-shadow);
}

.btn-green:hover,
.btn-green:focus {
    background: var(--brand-dark);
    border-color: var(--brand-dark);
    color: #fff;
    transform: translateY(-2px);
}

.btn-orange {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 12px 26px rgba(255, 106, 0, 0.26);
}

.btn-orange:hover,
.btn-orange:focus {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: #fff;
    transform: translateY(-2px);
}

.btn-outline-brand {
    background: transparent;
    border-color: var(--brand);
    color: var(--brand);
}

.btn-outline-brand:hover,
.btn-outline-brand:focus {
    background: var(--brand);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(11, 122, 75, 0.18);
}

.btn-outline-white {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.75);
    color: #fff;
}

.btn-outline-white:hover,
.btn-outline-white:focus {
    background: #fff;
    border-color: #fff;
    color: var(--text-main);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
    border-radius: 10px;
}

/* ------------------------------------------------------------
Hero / 分类页压缩 Hero
------------------------------------------------------------ */
.page-hero {
    position: relative;
    padding: 78px 0 68px;
    background: linear-gradient(112deg, #0B5E3B 0%, #0C1812 75%);
    overflow: hidden;
}

.official-hero {
    background:
        linear-gradient(100deg, rgba(7, 35, 22, 0.96) 0%, rgba(11, 122, 75, 0.88) 46%, rgba(12, 24, 18, 0.62) 100%),
        url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
}

.official-hero .container {
    position: relative;
    z-index: 2;
}

.hero-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    color: rgba(255,255,255,0.72);
    font-size: 13px;
    margin-bottom: 18px;
}

.hero-breadcrumb a {
    color: rgba(255,255,255,0.78);
}

.hero-breadcrumb a:hover {
    color: #fff;
}

.hero-breadcrumb i {
    font-size: 9px;
    color: rgba(255,255,255,0.45);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--brand);
    background: var(--brand-soft);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 14px;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #B9EFD2;
    background: rgba(255,255,255,0.11);
    border: 1px solid rgba(255,255,255,0.14);
    padding: 6px 15px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
}

.hero-eyebrow i {
    color: #7CDBAA;
}

.page-hero h1 {
    color: #fff;
    font-size: 40px;
    letter-spacing: -0.6px;
    margin: 14px 0 18px;
}

.page-hero .hero-lead {
    color: rgba(255,255,255,0.86);
    font-size: 17px;
    line-height: 1.85;
    max-width: 560px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
}

.hero-points {
    list-style: none;
    padding: 0;
    margin: 22px 0 0;
    display: grid;
    gap: 12px;
    max-width: 480px;
}

.hero-points li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,0.92);
    font-size: 14px;
}

.hero-points li i {
    width: 22px;
    height: 22px;
    flex: 0 0 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.16);
    color: #B9EFD2;
    font-size: 10px;
}

.hero-art {
    position: relative;
    max-width: 470px;
    margin-left: auto;
}

.hero-art img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: 0 28px 70px rgba(0,0,0,0.35);
    border: 4px solid rgba(255,255,255,0.13);
}

.hero-art-badge {
    position: absolute;
    left: -24px;
    bottom: 22px;
    display: flex;
    align-items: center;
    gap: 10px;
    background: #fff;
    color: var(--text-main);
    padding: 12px 18px;
    border-radius: 14px;
    box-shadow: 0 16px 28px rgba(0,0,0,0.18);
    font-size: 13px;
    line-height: 1.4;
}

.hero-art-badge i {
    width: 36px;
    height: 36px;
    flex: 0 0 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--brand-soft);
    color: var(--brand);
    border-radius: 10px;
    font-size: 16px;
}

.hero-art-badge strong {
    display: block;
    font-size: 14px;
    color: var(--text-main);
}

.hero-trust-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-top: 52px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.17);
}

.hero-trust-bar span {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: rgba(255,255,255,0.82);
    font-size: 14px;
}

.hero-trust-bar i {
    color: #7CDBAA;
}

/* ------------------------------------------------------------
步骤区
------------------------------------------------------------ */
.step-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 34px 28px;
    height: 100%;
    position: relative;
    transition: all 0.25s ease;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(11, 122, 75, 0.25);
}

.step-num {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: var(--brand-soft);
    color: var(--brand);
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 22px;
}

.step-card h3 {
    font-size: 19px;
    margin-bottom: 12px;
}

.step-card p {
    color: var(--text-muted);
    margin-bottom: 0;
    font-size: 15px;
}

.step-card .step-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    margin-top: 16px;
}

/* ------------------------------------------------------------
设备安装说明
------------------------------------------------------------ */
.os-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 32px;
    height: 100%;
    box-shadow: var(--shadow);
}

.os-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 22px;
}

.os-card-head .os-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 19px;
    margin: 0;
}

.os-icon {
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 13px;
    background: #E7F2EA;
    color: var(--brand);
    font-size: 20px;
}

.android-card .os-icon {
    background: var(--brand-soft);
    color: var(--brand);
}

.ios-card .os-icon {
    background: #EAF3FB;
    color: #156AA8;
}

.os-tag {
    font-size: 12px;
    font-weight: 700;
    color: var(--brand);
    background: var(--brand-soft);
    padding: 4px 10px;
    border-radius: 999px;
    white-space: nowrap;
}

.os-step-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 15px;
}

.os-step-list li {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-body);
    font-size: 15px;
}

.os-step-list .item-count {
    width: 24px;
    height: 24px;
    flex: 0 0 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-soft);
    color: var(--brand);
    border-radius: 8px;
    font-size: 12px;
    font-weight: 800;
    margin-top: 1px;
}

.os-card .btn {
    margin-top: 24px;
}

/* ------------------------------------------------------------
运行环境卡片
------------------------------------------------------------ */
.req-card {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    overflow: hidden;
    height: 100%;
    transition: all 0.25s ease;
}

.req-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.req-card-head {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 22px 26px;
    background: linear-gradient(135deg, #F6FAF6, #EDF4EE);
    border-bottom: 1px solid var(--line);
}

.req-card-head h3 {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    margin: 0;
}

.req-card-head h3 i {
    color: var(--brand);
    font-size: 20px;
}

.req-list {
    padding: 8px 26px 22px;
}

.req-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 13px 0;
    border-bottom: 1px solid var(--line);
}

.req-row:last-child {
    border-bottom: 0;
}

.req-row span {
    color: var(--text-muted);
    font-size: 14px;
}

.req-row strong {
    color: var(--text-main);
    font-size: 14px;
    font-weight: 700;
    text-align: right;
}

/* ------------------------------------------------------------
安全说明
------------------------------------------------------------ */
.security-panel {
    background: var(--bg-dark);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
    padding: 52px;
}

.security-panel::before {
    content: "";
    position: absolute;
    right: -80px;
    top: -80px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255, 106, 0, 0.12);
    filter: blur(30px);
}

.security-panel h2 {
    color: #fff;
    font-size: 25px;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.security-panel p {
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 0;
    position: relative;
    z-index: 1;
}

.security-list {
    list-style: none;
    padding: 0;
    margin: 24px 0 0;
    display: grid;
    gap: 12px;
}

.security-list li {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 10px;
    color: rgba(255,255,255,0.86);
    font-size: 14px;
}

.security-list li i {
    color: #7DD8A8;
    margin-top: 6px;
    font-size: 12px;
}

.security-info {
    margin-top: 24px;
}

.security-domain {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.16);
    border-radius: 14px;
    color: #fff;
    font-size: 14px;
    margin-bottom: 14px;
}

.security-domain i {
    color: #7DD8A8;
}

.security-domain code {
    background: rgba(0,0,0,0.3);
    color: #BDEBD3;
    padding: 2px 8px;
    border-radius: 6px;
    margin-left: 6px;
}

/* ------------------------------------------------------------
FAQ
------------------------------------------------------------ */
.faq-card-outer {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.22s ease;
}

.faq-card-outer:hover {
    border-color: rgba(11, 122, 75, 0.28);
    box-shadow: 0 14px 30px rgba(18, 55, 35, 0.08);
}

.faq-card-outer .accordion-item {
    border: 0;
    background: transparent;
}

.faq-card-outer .accordion-button {
    background: #fff;
    color: var(--text-main);
    font-weight: 700;
    font-size: 15px;
    border: 0;
    padding: 20px 24px;
    box-shadow: none;
    transition: all 0.2s ease;
}

.faq-card-outer .accordion-button:focus {
    box-shadow: 0 0 0 4px rgba(11, 122, 75, 0.12);
}

.faq-card-outer .accordion-button:not(.collapsed) {
    background: var(--brand-soft);
    color: var(--brand-dark);
}

.faq-card-outer .accordion-button::after {
    width: 18px;
    height: 18px;
    background-size: 18px;
    transition: transform 0.25s ease;
}

.faq-card-outer .accordion-button:not(.collapsed)::after {
    filter: hue-rotate(120deg);
}

.faq-card-outer .accordion-body {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.85;
    padding: 4px 24px 22px;
    border-top: 1px dashed var(--line);
}

.faq-card-outer .accordion-body a {
    font-weight: 600;
}

/* ------------------------------------------------------------
后续入口卡片
------------------------------------------------------------ */
.entry-card {
    display: block;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 27px;
    height: 100%;
    transition: all 0.25s ease;
}

.entry-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
    border-color: rgba(11, 122, 75, 0.25);
}

.entry-icon {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 13px;
    background: var(--bg-soft);
    color: var(--brand);
    font-size: 20px;
    margin-bottom: 18px;
}

.entry-card:hover .entry-icon {
    background: var(--brand);
    color: #fff;
}

.entry-card h3 {
    font-size: 17px;
    margin-bottom: 10px;
}

.entry-card p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.entry-card .more-link {
    font-size: 14px;
    font-weight: 700;
}

/* ------------------------------------------------------------
下载 CTA
------------------------------------------------------------ */
.download-zone {
    padding: 100px 0 90px;
    background: linear-gradient(145deg, var(--bg-dark) 0%, var(--bg-deep) 100%);
    position: relative;
    overflow: hidden;
}

.download-zone::before {
    content: "";
    position: absolute;
    right: -100px;
    top: -160px;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: rgba(255, 106, 0, 0.15);
    filter: blur(60px);
}

.download-zone::after {
    content: "";
    position: absolute;
    left: -80px;
    bottom: -140px;
    width: 380px;
    height: 380px;
    border-radius: 50%;
    background: rgba(11, 122, 75, 0.35);
    filter: blur(70px);
}

.download-wrap {
    position: relative;
    z-index: 2;
}

.download-zone .section-title {
    color: #fff;
}

.download-zone .section-lead {
    color: rgba(255,255,255,0.72);
}

.download-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
    margin-top: 28px;
}

.download-btns .btn {
    min-width: 160px;
}

.download-btns .btn i {
    font-size: 16px;
}

.download-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 26px;
    margin-top: 34px;
    color: rgba(255,255,255,0.55);
    font-size: 12px;
}

.download-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.download-meta i {
    color: #7DD8A8;
    font-size: 11px;
}

/* ------------------------------------------------------------
Footer
------------------------------------------------------------ */
.site-footer {
    background: #07150F;
    color: rgba(255,255,255,0.65);
    padding-top: 64px;
    border-top: 1px solid rgba(255,255,255,0.04);
}

.site-footer a {
    color: rgba(255,255,255,0.62);
    text-decoration: none;
    transition: color 0.2s ease;
}

.site-footer a:hover {
    color: var(--accent);
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
    padding-bottom: 38px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #fff;
    font-size: 21px;
    font-weight: 800;
}

.fb-icon {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 13px;
    background: var(--brand);
    color: #fff;
    font-size: 17px;
    box-shadow: 0 8px 20px rgba(11, 122, 75, 0.3);
}

.footer-appbtns {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.footer-appbtns a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    border-radius: 999px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.82);
    font-size: 13px;
    transition: all 0.25s ease;
}

.footer-appbtns a:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    transform: translateY(-2px);
}

.footer-links-group {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr 0.85fr 0.95fr;
    gap: 40px;
    padding: 48px 0 36px;
}

.footer-col h5 {
    color: #fff;
    font-size: 15px;
    margin-bottom: 18px;
    letter-spacing: 0.2px;
}

.footer-col p {
    font-size: 13px;
    line-height: 1.85;
    color: rgba(255,255,255,0.55);
    margin-bottom: 0;
}

.footer-col ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.footer-col ul li a {
    font-size: 14px;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    padding: 24px 0 28px;
    border-top: 1px solid rgba(255,255,255,0.07);
    color: rgba(255,255,255,0.4);
    font-size: 13px;
}

.footer-bottom a {
    color: rgba(255,255,255,0.4);
}

/* ------------------------------------------------------------
Responsive
------------------------------------------------------------ */
@media (max-width: 1199.98px) {
    .hero-art-badge {
        left: -8px;
    }
}

@media (max-width: 991.98px) {
    .section {
        padding: 70px 0;
    }

    .brand-text {
        font-size: 16px;
    }

    .navbar-collapse {
        padding: 16px 0;
        background: #fff;
        border-radius: 16px;
        margin-top: 10px;
    }

    .navbar-nav {
        gap: 2px;
    }

    .navbar-nav .nav-link {
        display: block;
        padding: 12px 16px;
        font-size: 15px;
        border-radius: 12px;
    }

    .navbar-nav .nav-link.active::after {
        left: 16px;
        right: auto;
        width: 32px;
        height: 3px;
        bottom: 3px;
    }

    .header-right {
        width: 100%;
        flex-wrap: wrap;
        margin-top: 12px;
        align-items: stretch;
    }

    .search-pill {
        width: 100%;
    }

    .header-right .download-btn {
        width: 100%;
    }

    .page-hero {
        padding: 54px 0;
    }

    .hero-art {
        margin: 30px auto 0;
    }

    .hero-art-badge {
        left: 0;
    }

    .footer-links-group {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 767.98px) {
    .section {
        padding: 58px 0;
    }

    .section-title {
        font-size: 25px;
    }

    .page-hero h1 {
        font-size: 31px;
    }

    .page-hero .hero-lead {
        font-size: 15px;
    }

    .security-panel {
        padding: 32px 22px;
    }

    .security-panel h2 {
        font-size: 22px;
    }

    .footer-links-group {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .footer-top {
        align-items: flex-start;
        flex-direction: column;
    }

    .footer-appbtns a {
        padding: 8px 14px;
    }

    .download-zone {
        padding: 70px 0;
    }
}

@media (max-width: 575.98px) {
    .brand-text {
        font-size: 15px;
    }

    .brand-mark {
        width: 34px;
        height: 34px;
        flex-basis: 34px;
        font-size: 14px;
    }

    .btn {
        padding: 10px 18px;
    }

    .page-hero {
        padding: 42px 0 38px;
    }

    .page-hero h1 {
        font-size: 28px;
    }

    .page-hero .hero-lead {
        font-size: 14px;
        line-height: 1.8;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .hero-trust-bar {
        gap: 12px;
    }

    .hero-trust-bar span {
        font-size: 13px;
    }

    .hero-art-badge {
        left: 4px;
        bottom: 10px;
        padding: 10px 14px;
    }

    .os-card {
        padding: 26px 20px;
    }

    .os-card-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .os-card .btn {
        width: 100%;
    }

    .download-btns .btn {
        width: 100%;
    }

    .download-meta {
        gap: 12px;
        font-size: 12px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* roulang page: article */
:root{
  --green:#0B7A4B;
  --green-dark:#08603A;
  --green-light:rgba(11,122,75,.08);
  --orange:#FF6A00;
  --orange-dark:#E85E00;
  --deep:#0C1812;
  --deep-2:#12211A;
  --bg:#F5F7F4;
  --text:#17211B;
  --muted:#5A675E;
  --helper:#8A958D;
  --line:#E4E8E2;
  --white:#FFFFFF;
  --card-bg:#FCFDFC;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 12px 30px rgba(12,40,25,.07);
  --shadow-hover:0 18px 40px rgba(12,40,25,.12);
  --transition:.22s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;border:0}
a{color:var(--green);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--orange)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(11,122,75,.38);
  outline-offset:2px;
  box-shadow:none;
  border-radius:6px;
}
p,h1,h2,h3,h4,h5,h6{margin:0}
ul,ol{padding:0;margin:0}
i[class*="fa-"]{line-height:1}
.container{max-width:1220px}
.btn{
  border:0;
  font-weight:700;
  letter-spacing:.2px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:50rem;
  padding:.72rem 1.45rem;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn i{font-size:.95em}
.btn-green{background:var(--green);color:#fff;box-shadow:0 8px 20px rgba(11,122,75,.26)}
.btn-green:hover,.btn-green:focus{background:var(--green-dark);color:#fff;transform:translateY(-2px)}
.btn-orange{background:var(--orange);color:#fff;box-shadow:0 8px 22px rgba(255,106,0,.26)}
.btn-orange:hover,.btn-orange:focus{background:var(--orange-dark);color:#fff;transform:translateY(-2px)}
.btn-outline-light-g{
  background:rgba(255,255,255,.12);
  color:#fff;
  border:1px solid rgba(255,255,255,.45);
  box-shadow:none;
}
.btn-outline-light-g:hover,.btn-outline-light-g:focus{
  background:rgba(255,255,255,.22);color:#fff;border-color:#fff;transform:translateY(-2px);
}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:1050;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(228,232,226,.8);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(15,40,25,.05)}
.site-header .navbar{padding:0;min-height:72px}
.brand-logo{
  display:inline-flex;align-items:center;gap:11px;
  padding:8px 0;
}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:39px;height:39px;flex:0 0 39px;
  background:linear-gradient(135deg,#0B7A4B 0%,#0c9160 100%);
  color:#fff;font-size:17px;border-radius:13px;
  box-shadow:0 7px 16px rgba(11,122,75,.25);
}
.brand-text{font-size:19px;font-weight:750;color:var(--text);letter-spacing:.2px;white-space:nowrap}
.brand-text:hover{color:var(--green)}
.navbar-nav{column-gap:4px}
.navbar-nav .nav-link{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:#2A352D;
  padding:26px 15px !important;
  line-height:20px;
  white-space:nowrap;
}
.navbar-nav .nav-link::after{
  content:"";
  position:absolute;
  left:16px;right:16px;bottom:12px;
  height:3px;border-radius:4px;
  background:var(--green);
  width:0;
  opacity:0;
  transition:width .25s ease,opacity .25s ease;
}
.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after{
  width:calc(100% - 32px);
  opacity:1;
}
.navbar-nav .nav-link:hover,.navbar-nav .nav-link.active,.navbar-nav .nav-link:focus-visible{
  color:var(--green);
}
.header-right{gap:15px;align-items:center}
.search-pill{
  display:flex;
  align-items:center;
  gap:8px;
  width:210px;
  background:#F1F4F0;
  border-radius:50rem;
  border:1px solid rgba(228,232,226,.9);
  padding:0 14px;
  height:41px;
  transition:border-color .2s ease,background .2s ease;
}
.search-pill:focus-within{border-color:var(--green);background:#fff;box-shadow:0 0 0 4px rgba(11,122,75,.1)}
.search-pill i{color:#88938B;font-size:14px}
.search-pill input{
  width:100%;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--text);
}
.search-pill input::placeholder{color:#A1ABA3}
.download-btn{
  padding:.55rem 1.1rem;
  font-size:14px;
  border-radius:50rem;
}
.navbar-toggler{
  border:0;
  background:#F1F4F0;
  width:44px;height:44px;
  display:inline-flex;
  align-items:center;justify-content:center;
  color:var(--green);font-size:18px;
  border-radius:12px;
}
.navbar-toggler:focus{box-shadow:0 0 0 4px rgba(11,122,75,.16);outline:0}

/* ===== Article Page Layout ===== */
.article-page{
  padding:38px 0 72px;
  min-height:70vh;
}
.breadcrumb-custom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-size:14px;
  color:var(--muted);
  margin-bottom:18px;
  list-style:none;
}
.breadcrumb-custom a{color:var(--muted);font-weight:500}
.breadcrumb-custom a:hover{color:var(--green)}
.breadcrumb-custom i{color:#A9B2A8;font-size:11px}
.breadcrumb-custom span{color:var(--text);font-weight:600;display:block;max-width:470px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.article-panel{
  background:var(--card-bg);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:38px 44px 28px;
  border:1px solid rgba(228,232,226,.6);
}
.article-title{
  font-size:32px;
  line-height:1.38;
  font-weight:750;
  color:var(--text);
  letter-spacing:.2px;
  margin-bottom:17px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 13px;
  color:var(--muted);
  font-size:14px;
  padding-bottom:19px;
  border-bottom:1px dashed var(--line);
  margin-bottom:24px;
}
.article-meta .meta-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:var(--green-light);
  color:var(--green);
  padding:4px 11px;
  border-radius:50rem;
  font-size:13px;
  font-weight:650;
}
.article-meta .meta-text{display:inline-flex;align-items:center;gap:7px}
.article-meta .meta-text i{color:#9BA69C;font-size:13px}
.article-meta .dot{width:4px;height:4px;background:#C3CCC2;border-radius:50%}
.article-heroimg{
  margin:0 0 24px;
  border-radius:16px;
  overflow:hidden;
  background:#EDF1EA;
}
.article-heroimg img{width:100%;display:block;object-fit:cover;aspect-ratio:16/6.4;min-height:180px}
.article-content{
  font-size:16px;
  line-height:1.9;
  color:#223028;
  word-wrap:break-word;
}
.article-content h2{
  font-size:24px;
  font-weight:750;
  color:var(--text);
  margin:36px 0 15px;
  line-height:1.4;
  padding-left:13px;
  border-left:4px solid var(--green);
  border-radius:2px;
}
.article-content h3{
  font-size:20px;
  font-weight:700;
  color:#1F2A24;
  margin:26px 0 12px;
  line-height:1.5;
}
.article-content p{margin:0 0 19px}
.article-content p:last-child{margin-bottom:0}
.article-content ul,.article-content ol{margin:6px 0 22px;padding-left:24px}
.article-content ul li,.article-content ol li{margin-bottom:8px;padding-left:4px}
.article-content ul li::marker{color:var(--green)}
.article-content ol li::marker{color:var(--green);font-weight:700}
.article-content a{text-decoration:underline;text-underline-offset:3px;color:var(--green);font-weight:600}
.article-content a:hover{color:var(--orange)}
.article-content blockquote{
  background:#EBF3EE;
  border-left:5px solid var(--green);
  border-radius:0 14px 14px 0;
  padding:17px 22px;
  margin:20px 0 24px;
  color:#2C3A32;
  font-weight:500;
}
.article-content blockquote p{margin-bottom:8px}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{
  display:block;
  width:calc(100% - 60px);
  margin:26px auto;
  border-radius:14px;
  box-shadow:var(--shadow);
}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:22px 0;
  font-size:14px;
}
.article-content table th{
  background:var(--deep);
  color:#DDE8DF;
  padding:11px 14px;
  font-weight:650;
}
.article-content table td{
  border-bottom:1px solid var(--line);
  padding:10px 14px;
}
.article-content hr{
  border:0;
  border-top:1px solid var(--line);
  margin:34px 0;
  opacity:1;
}
.article-content code{
  background:#EDF1EA;padding:2px 8px;border-radius:7px;
  font-size:14px;color:var(--green-dark);
}
.article-tags-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:28px;
  padding-top:21px;
  border-top:1px dashed var(--line);
}
.article-tags-row span.label{color:var(--helper);font-size:14px;font-weight:600}
.tag-chip{
  background:#F1F4F0;
  border:1px solid rgba(228,232,226,.9);
  color:#39463D;
  padding:5px 13px;
  border-radius:50rem;
  font-size:13px;
  font-weight:600;
}
.tag-chip:hover{background:var(--green-light);color:var(--green);border-color:rgba(11,122,75,.2)}
.article-endline{
  display:flex;
  align-items:center;
  gap:12px;
  margin-top:29px;
  padding:10px 0 2px;
}
.article-endline i{color:var(--green);font-size:14px}
.article-endline span{color:var(--helper);font-size:13px;letter-spacing:1px}

/* Next Prev */
.article-pager{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
  margin-top:22px;
}
.article-pager a{
  background:#FBFCFA;
  border:1px solid rgba(228,232,226,.8);
  border-radius:14px;
  padding:16px 20px;
  display:flex;
  align-items:center;
  gap:12px;
  font-size:14px;
  font-weight:650;
  color:var(--text);
  transition:all .23s ease;
}
.article-pager a:hover{
  border-color:var(--green);
  box-shadow:var(--shadow);
  transform:translateY(-2px);
  color:var(--green);
}
.article-pager a .p-next{justify-content:flex-end}
.article-pager a .small{
  display:block;
  font-size:12px;
  color:var(--helper);
  font-weight:500;
  letter-spacing:.5px;
}
.article-pager a i{color:var(--green);font-size:14px}

/* Empty */
.not-found-panel{
  background:var(--card-bg);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:70px 35px;
  text-align:center;
}
.not-found-panel .nf-icon{
  width:76px;height:76px;margin:0 auto 22px;
  background:#F1F4F0;
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
}
.not-found-panel .nf-icon i{color:var(--green);font-size:31px}
.not-found-panel h1{font-size:26px;font-weight:750;margin-bottom:10px}
.not-found-panel p{color:var(--muted);font-size:15px;margin-bottom:22px}
.not-found-panel .btn-home{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--green);color:#fff;border-radius:50rem;
  padding:.68rem 1.45rem;font-weight:650;
}
.not-found-panel .btn-home:hover{background:var(--green-dark);color:#fff;transform:translateY(-2px)}

/* ===== Aside side bar ===== */
.article-aside{display:flex;flex-direction:column;gap:22px}
.aside-card{
  background:var(--card-bg);
  border:1px solid rgba(228,232,226,.72);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:24px;
}
.aside-card .ac-title{
  font-size:17px;
  font-weight:750;
  color:var(--text);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  margin-bottom:19px;
}
.aside-card .ac-title .line{
  width:32px;height:4px;border-radius:8px;
  background:var(--orange);display:block;
}
.app-mini-card{
  background:linear-gradient(155deg,#0C1812 0%,#101F17 48%,#163226 100%);
  border-radius:var(--radius-lg);
  color:#EAF2EC;
  padding:25px;
  position:relative;
  overflow:hidden;
}
.app-mini-card::after{
  content:"";
  position:absolute;
  width:220px;height:220px;
  background:radial-gradient(circle,rgba(11,122,75,.42),transparent 65%);
  right:-90px;top:-60px;
  pointer-events:none;
  border-radius:50%;
}
.app-mini-logo{
  display:flex;
  align-items:center;
  gap:11px;
  margin-bottom:16px;
}
.app-mini-logo .mini-icon{
  width:42px;height:42px;
  background:var(--green);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:18px;
  border-radius:13px;
  box-shadow:0 6px 14px rgba(0,0,0,.25);
}
.app-mini-logo strong{font-size:18px;font-weight:750;letter-spacing:.2px}
.app-mini-card .version{
  display:inline-flex;
  color:var(--orange);
  border:1px solid rgba(255,106,0,.55);
  padding:2px 10px;
  border-radius:50rem;
  font-size:12px;
  font-weight:650;
}
.app-mini-card p{font-size:13.5px;color:#B7C6BC;line-height:1.7;margin:13px 0 18px}
.app-mini-btn{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  width:100%;
  background:var(--orange);
  border-radius:50rem;
  padding:.68rem .5rem;
  font-weight:700;
  color:#fff;
  box-shadow:0 10px 24px rgba(0,0,0,.2);
  transition:background .22s,transform .22s;
}
.app-mini-btn:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px)}
.app-mini-meta{
  display:flex;
  justify-content:space-between;
  margin-top:14px;
  color:#8E9F94;
  font-size:12px;
}
.aside-cate-card .cate-list{display:grid;gap:7px}
.aside-cate-card .cate-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:#F6F8F5;
  border-radius:12px;
  padding:12px 15px;
  font-size:14.5px;
  font-weight:650;
  color:#29362E;
  border:1px solid transparent;
  transition:all .22s;
}
.aside-cate-card .cate-item i{color:var(--green);font-size:13px;transition:transform .2s}
.aside-cate-card .cate-item:hover{
  border-color:rgba(11,122,75,.3);
  background:var(--green-light);
  transform:translateX(3px);
}
.aside-cate-card .cate-item:hover i{transform:translateX(3px)}
.help-mini-card{
  background:linear-gradient(155deg,#F2F6F1,#ECF3ED);
  border:1px solid rgba(11,122,75,.15);
  border-radius:var(--radius-lg);
  padding:22px 22px 20px;
  display:flex;
  align-items:center;
  gap:15px;
}
.help-mini-icon{
  width:50px;height:50px;flex:0 0 50px;
  background:#fff;
  color:var(--green);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;
  box-shadow:0 8px 16px rgba(20,70,44,.1);
}
.help-mini-info strong{display:block;font-size:16px;margin-bottom:6px}
.help-mini-info p{font-size:13px;color:var(--muted);line-height:1.5;margin-bottom:9px}
.help-mini-info a{font-size:13.5px;color:var(--green);font-weight:700}
.help-mini-info a:hover{color:var(--orange)}

/* related */
.related-ring{
  margin-top:48px;
  background:#FFFFFF;
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:38px 36px 42px;
  border:1px solid rgba(228,232,226,.6);
}
.related-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:15px;
  flex-wrap:wrap;
  margin-bottom:24px;
}
.related-head h2{
  font-size:24px;
  font-weight:750;
  color:var(--text);
  position:relative;
  padding-left:18px;
}
.related-head h2::before{
  content:"";
  width:5px;height:24px;
  background:var(--orange);
  border-radius:8px;
  position:absolute;left:0;top:3px;
}
.related-head p{color:var(--muted);font-size:14px}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.rel-card{
  background:#FAFCFA;
  border:1px solid rgba(228,232,226,.75);
  border-radius:16px;
  overflow:hidden;
  transition:transform .25s,box-shadow .25s,border-color .25s;
  display:flex;flex-direction:column;
}
.rel-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(11,122,75,.25);
}
.rel-card .rel-img{
  display:block;
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  background:#E9EEEA;
}
.rel-card-body{padding:17px 20px 20px;display:flex;flex-direction:column;flex:1}
.rel-card-body .rel-tag{
  display:inline-flex;
  align-self:flex-start;
  background:var(--green-light);
  color:var(--green);
  padding:3px 11px;
  border-radius:50rem;
  font-size:12px;
  font-weight:650;
  margin-bottom:11px;
}
.rel-card-body h3{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:7px}
.rel-card-body h3 a{color:var(--text)}
.rel-card-body h3 a:hover{color:var(--green)}
.rel-card-body p{
  color:var(--muted);font-size:13.5px;line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:14px;
  flex:1;
}
.rel-card-body .link-row{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13.5px;font-weight:650;
  color:var(--green);
}
.rel-card-body .link-row span{color:var(--helper);font-weight:500;font-size:12.5px}

/* FAQ */
.faq-section{
  padding:64px 0 22px;
}
.faq-inner-head{
  text-align:center;
  margin-bottom:34px;
}
.section-sub{
  display:block;
  color:var(--green);
  font-size:13px;
  letter-spacing:2px;
  font-weight:700;
  margin-bottom:9px;
}
.faq-inner-head h2{
  font-size:28px;
  font-weight:750;
  color:var(--text);
  line-height:1.45;
}
.faq-inner-head p{color:var(--muted);font-size:15px;margin-top:7px}
.faq-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:17px;
}
.accordion-item{
  background:#FFFFFF;
  border:1px solid rgba(228,232,226,.75);
  border-radius:16px !important;
  overflow:hidden;
  box-shadow:0 6px 18px rgba(25,55,38,.04);
  margin-bottom:0;
  transition:box-shadow .25s,border-color .25s;
}
.accordion-item:not(:first-of-type){border-top:1px solid rgba(228,232,226,.75)}
.accordion-item:hover{border-color:rgba(11,122,75,.25);box-shadow:var(--shadow)}
.accordion-button{
  background:#FFFFFF;
  color:var(--text);
  font-size:16px;
  font-weight:680;
  padding:19px 20px 16px;
  border-radius:16px !important;
  box-shadow:none !important;
  transition:color .22s;
}
.accordion-button:not(.collapsed){
  color:var(--green);
  background:#F6FBF8;
}
.accordion-button::after{
  background-image:none;
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  color:var(--green);
  font-size:13px;
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;
  background-color:var(--green-light);
  border-radius:50%;
  transition:transform .25s;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(-180deg);
  background-image:none;
}
.accordion-body{
  padding-top:0;
  padding:5px 22px 21px 22px;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.8;
  border-top:1px dashed rgba(228,232,226,.75);
  margin-top:4px;
}
.faq-more{
  margin-top:25px;
  text-align:center;
}
.faq-more a{font-size:14.5px;color:var(--green);font-weight:650}

/* CTA download big */
.download-cta-section{
  background:linear-gradient(125deg,#0C1812 0%,#0F2219 55%,#143A28 100%);
  padding:68px 0 76px;
  border-radius:24px;
  margin:28px 0 0;
  position:relative;
  overflow:hidden;
  box-shadow:0 20px 58px rgba(8,30,18,.35);
}
.download-cta-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.1;
  pointer-events:none;
}
.download-cta-section::after{
  content:"";
  position:absolute;
  width:420px;height:420px;
  background:radial-gradient(circle,rgba(255,106,0,.18),transparent 62%);
  left:auto;right:-130px;top:-160px;
  pointer-events:none;
}
.cta-wrap{
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  color:#EDF6EF;
  position:relative;
  z-index:2;
}
.cta-wrap h2{
  font-size:31px;
  font-weight:780;
  letter-spacing:.5px;
  margin-bottom:12px;
  color:#fff;
}
.cta-wrap p{
  font-size:15px;
  color:#AFC9B9;
  max-width:650px;
  margin:0 auto 27px;
  line-height:1.85;
}
.download-btn-group{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
  margin-bottom:23px;
}
.download-spec{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:9px 19px;
  font-size:12.5px;
  color:#A9C1B2;
  margin-top:5px;
}
.download-spec span{
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.download-spec i{
  color:var(--orange);
  font-size:13px;
}
.cta-secure{
  margin-top:14px;
  font-size:12px;
  color:#6F8B7C;
  display:inline-flex;
  align-items:center;
  gap:7px;
}

/* Footer */
.site-footer{
  background:var(--deep);
  color:#ADC0B2;
  margin-top:78px;
  font-size:14.5px;
}
.site-footer::before{
  content:"";
  display:block;
  height:4px;
  background:linear-gradient(90deg,var(--green) 0%,var(--deep) 28%,var(--orange) 100%);
}
.footer-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  padding:44px 0 31px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:11px;
}
.fb-icon{
  width:42px;height:42px;
  background:var(--green);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:14px;
  font-size:18px;
  box-shadow:0 8px 20px rgba(0,0,0,.25);
}
.footer-brand span:last-child{
  color:#E4EDE7;
  font-size:21px;
  font-weight:750;
  letter-spacing:.2px;
  white-space:nowrap;
}
.footer-appbtns{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.footer-appbtns a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  border-radius:50rem;
  color:#D8E4DB;
  font-weight:650;
  font-size:13.5px;
  padding:.62rem 1.2rem;
  transition:background .22s,color .22s,transform .2s;
}
.footer-appbtns a:hover{
  background:rgba(255,106,0,.2);
  border-color:rgba(255,106,0,.6);
  color:#FFB87C;
  transform:translateY(-2px);
}
.footer-links-group{
  display:grid;
  grid-template-columns:1.35fr .85fr .9fr 1fr;
  gap:35px;
  padding:33px 0 22px;
}
.footer-col h5{
  color:#E7EFE8;
  font-size:15.5px;
  font-weight:700;
  margin-bottom:17px;
}
.footer-col p{
  color:#8EA394;
  font-size:13.5px;
  line-height:1.85;
  margin:0;
}
.footer-col > ul{
  list-style:none;
  display:grid;
  gap:9px;
}
.footer-col ul li a{
  color:#A7BBAE;
  font-size:14px;
  transition:color .2s,padding .2s;
}
.footer-col ul li a:hover{
  color:var(--orange);
  padding-left:4px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:19px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  flex-wrap:wrap;
  color:#7E9588;
  font-size:13px;
}
.footer-bottom a{color:#97AE9F}
.footer-bottom a:hover{color:#fff}

/* Responsive */
@media (min-width:992px){
  .faq-section .container{max-width:1050px}
}
@media (max-width: 1199px){
  .search-pill{width:175px}
}
@media (max-width: 991px){
  .site-header .navbar .container{max-width:100%}
  .navbar-brand{order:1}
  .navbar-toggler{order:2;margin-left:auto !important}
  #mainNav{
    order:3;
    width:100%;
    padding-top:12px;
    border-top:1px solid var(--line);
    margin-top:10px;
  }
  .navbar-nav .nav-link{
    padding:15px 0 !important;
    border-bottom:1px solid rgba(228,232,226,.6);
  }
  .navbar-nav .nav-link::after{display:none}
  .header-right{
    display:flex;
    flex-direction:row;
    gap:12px;
    padding:15px 0 7px;
  }
  .search-pill{flex:1;width:auto}
  .article-panel{padding:30px 24px 23px}
  .article-title{font-size:29px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-links-group{grid-template-columns:1fr 1fr;gap:25px}
}
@media (max-width: 767px){
  .article-page{padding:27px 0 55px}
  .article-panel{padding:22px 17px 18px;border-radius:16px}
  .article-title{font-size:24px;line-height:1.5}
  .article-meta{gap:8px}
  .article-meta .meta-text i{display:none}
  .article-content{font-size:15.5px;line-height:1.85}
  .article-content img{width:100%;border-radius:12px}
  .related-inner{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .footer-links-group{grid-template-columns:1fr 1fr}
  .download-cta-section{border-radius:0;margin-top:20px;padding:56px 0 62px}
  .cta-wrap h2{font-size:24px}
  .footer-links-group{grid-template-columns:1fr}
  .footer-top{padding:32px 0 27px;flex-direction:column;align-items:flex-start}
  .footer-appbtns a{flex:1;justify-content:center}
  .footer-appbtns{width:100%}
}
@media (max-width: 575px){
  .article-meta{font-size:13px}
  .article-meta .meta-text .hide-xs{display:none}
  .download-btn-group .btn{width:100%;max-width:310px}
  .article-pager{grid-template-columns:1fr}
  .article-panel{padding:19px 14px 15px}
  .footer-links-group{padding-top:21px}
  .footer-bottom{justify-content:center}
}

/* roulang page: category3 */
:root {
            --green: #0B7A4B;
            --green-deep: #075C38;
            --orange: #FF6A00;
            --orange-deep: #E85E00;
            --dark-green: #0C1812;
            --soft-gray: #F5F7F4;
            --text-main: #17211B;
            --text-second: #5A675E;
            --text-muted: #8A958D;
            --divider: #E4E8E2;
            --white: #FFFFFF;
            --radius: 16px;
            --shadow: 0 12px 30px rgba(12, 40, 25, 0.07);
            --shadow-hover: 0 18px 40px rgba(12, 40, 25, 0.13);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--white);
            color: var(--text-main);
            font-family: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            font-size: 16px;
            line-height: 1.75;
        }

        img {
            max-width: 100%;
            height: auto;
        }

        a {
            color: var(--green);
            text-decoration: none;
            transition: color .2s ease;
        }

        a:hover {
            color: var(--orange);
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-main);
            font-weight: 700;
            line-height: 1.3;
        }

        .section {
            padding: 92px 0;
        }

        .section-bg {
            background: var(--soft-gray);
        }

        .container {
            max-width: 1200px;
        }

        .section-head {
            max-width: 780px;
            margin-bottom: 48px;
        }

        .section-head .section-tag,
        .small-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 14px;
            border-radius: 999px;
            background: rgba(11, 122, 75, 0.1);
            color: var(--green);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 30px;
            margin: 0 0 14px;
        }

        .section-head .lead {
            color: var(--text-second);
            font-size: 16px;
            margin: 0;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--divider);
            backdrop-filter: blur(14px);
        }

        .site-header .navbar {
            min-height: 72px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-main);
            font-size: 19px;
            font-weight: 700;
            letter-spacing: -0.01em;
        }

        .brand-logo:hover {
            color: var(--green);
        }

        .brand-mark {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 13px;
            background: linear-gradient(145deg, rgba(11, 122, 75, .14), rgba(11, 122, 75, .04));
            border: 1px solid rgba(11, 122, 75, .19);
            color: var(--green);
            font-size: 17px;
            transform: rotate(-8deg);
            transition: transform .3s ease, background .3s ease;
        }

        .brand-logo:hover .brand-mark {
            transform: rotate(0deg);
        }

        .navbar .nav-link {
            color: var(--text-second);
            font-weight: 500;
            padding: 26px 16px;
            font-size: 15px;
            position: relative;
        }

        .navbar .nav-link::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 10px;
            height: 3px;
            border-radius: 10px;
            background: var(--green);
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform .22s ease;
        }

        .navbar .nav-link:hover {
            color: var(--green);
        }

        .navbar .nav-link:hover::after,
        .navbar .nav-link.active::after {
            transform: scaleX(1);
        }

        .navbar .nav-link.active {
            color: var(--green);
            font-weight: 600;
        }

        .header-right {
            gap: 12px;
            align-items: center;
        }

        .search-pill {
            display: flex;
            align-items: center;
            background: var(--soft-gray);
            border: 1px solid var(--divider);
            border-radius: 999px;
            padding: 7px 15px;
            height: 40px;
            width: 210px;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .search-pill i {
            color: var(--text-muted);
            font-size: 14px;
        }

        .search-pill input {
            border: none;
            background: transparent;
            outline: none;
            margin-left: 7px;
            min-width: 0;
            width: 100%;
            color: var(--text-main);
            font-size: 14px;
        }

        .search-pill input::placeholder {
            color: var(--text-muted);
        }

        .search-pill:focus-within {
            border-color: var(--green);
            box-shadow: 0 0 0 4px rgba(11, 122, 75, 0.1);
        }

        .btn-green {
            background: var(--green);
            color: #fff;
            border: none;
            border-radius: 999px;
            padding: 9px 20px;
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            transition: all .18s ease;
        }

        .btn-green:hover {
            background: var(--green-deep);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(11, 122, 75, 0.22);
        }

        .btn-orange {
            background: var(--orange);
            color: #fff;
            border: none;
            border-radius: 999px;
            padding: 13px 30px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .18s ease;
            box-shadow: 0 12px 22px rgba(255, 106, 0, .24);
        }

        .btn-orange:hover {
            background: var(--orange-deep);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 16px 32px rgba(255, 106, 0, .3);
        }

        .btn-outline-green {
            border: 1.5px solid var(--green);
            color: var(--green);
            background: rgba(255, 255, 255, .92);
            border-radius: 999px;
            padding: 11px 24px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .18s ease;
        }

        .btn-outline-green:hover {
            background: var(--green);
            color: #fff;
            border-color: var(--green);
            transform: translateY(-2px);
        }

        .download-btn {
            white-space: nowrap;
        }

        .navbar-toggler {
            border: none;
            padding: 8px 12px;
            color: var(--text-main);
            font-size: 18px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
        }

        /* ===== category hero ===== */
        .category-hero {
            position: relative;
            padding: 74px 0 72px;
            background:
                linear-gradient(100deg, rgba(245, 247, 244, 0.98) 0%, rgba(245, 247, 244, 0.88) 34%, rgba(245, 247, 244, 0.72) 65%, rgba(11, 122, 75, 0.16) 100%),
                url('/assets/images/backpic/back-1.webp') no-repeat center/cover;
            border-bottom: 1px solid var(--divider);
        }

        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .86);
            border: 1px solid rgba(11, 122, 75, .2);
            color: var(--green);
            padding: 7px 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
        }

        .category-hero h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            margin: 20px 0 14px;
            letter-spacing: -0.02em;
        }

        .category-hero .hero-text {
            color: var(--text-second);
            max-width: 620px;
            margin-bottom: 28px;
            font-size: 17px;
            line-height: 1.8;
        }

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            padding: 18px 0;
        }

        .hero-metric-item .hero-metric-value {
            font-size: 26px;
            font-weight: 800;
            color: var(--green);
            line-height: 1.1;
        }

        .hero-metric-item .hero-metric-label {
            color: var(--text-second);
            font-size: 13px;
        }

        .hero-asset {
            border-radius: 22px;
            box-shadow: var(--shadow);
        }

        .hero-asset img {
            width: 100%;
            border-radius: 22px;
            display: block;
        }

        /* rating overview */
        .rating-total-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 30px;
            border: 1px solid var(--divider);
            box-shadow: var(--shadow);
            height: 100%;
        }

        .rating-total-card .big-score {
            font-size: 54px;
            font-weight: 800;
            color: var(--orange);
            line-height: 1;
        }

        .rating-total-card .star-wrap {
            color: #FFB300;
            font-size: 20px;
            margin: 10px 0 4px;
        }

        .score-total-text {
            color: var(--text-second);
            font-size: 14px;
        }

        .rating-list-card {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--divider);
            box-shadow: var(--shadow);
            padding: 30px;
            height: 100%;
        }

        .rating-line {
            margin-bottom: 18px;
        }

        .rating-line-label {
            display: flex;
            justify-content: space-between;
            margin-bottom: 7px;
            font-size: 15px;
            color: var(--text-main);
        }

        .rating-line-label span:last-child {
            font-weight: 700;
            color: var(--text-main);
        }

        .progress {
            height: 9px;
            background: #EAEFEA;
            border-radius: 999px;
            overflow: hidden;
        }

        .progress .progress-bar {
            background: linear-gradient(90deg, var(--green), #20A067);
            border-radius: 999px;
        }

        .progress .progress-bar.orange {
            background: linear-gradient(90deg, var(--orange), #FF9A45);
        }

        /* review wall */
        .review-wall {
            background: var(--soft-gray);
        }

        .review-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 26px;
            border: 1px solid var(--divider);
            box-shadow: var(--shadow);
            margin-bottom: 24px;
            position: relative;
            transition: transform .2s ease, box-shadow .2s ease;
        }

        .review-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .review-card .recommend-flag {
            color: var(--green);
        }

        .review-meta {
            display: flex;
            justify-content: space-between;
            gap: 12px;
            align-items: center;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .review-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(11, 122, 75, .12);
            color: var(--green);
            font-weight: 700;
            border: 1px solid rgba(11, 122, 75, .16);
            flex-shrink: 0;
        }

        .review-user h3 {
            font-size: 15px;
            margin: 0;
        }

        .review-user small {
            color: var(--text-muted);
            font-size: 12px;
        }

        .star-icons {
            color: #FFB300;
            letter-spacing: 2px;
            font-size: 16px;
        }

        .star-icons .gray-star {
            color: #D9DFDA;
        }

        .review-body {
            color: var(--text-second);
            font-size: 15px;
            line-height: 1.8;
            margin: 16px 0 10px;
        }

        .review-body strong,
        .review-body .hl-word {
            color: var(--green);
            font-weight: 600;
        }

        .review-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 7px;
            margin-top: 12px;
        }

        .review-tags span {
            padding: 4px 10px;
            border-radius: 999px;
            background: rgba(11, 122, 75, .08);
            color: var(--green);
            font-size: 12px;
            border: 1px solid rgba(11, 122, 75, .14);
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--green);
            border-bottom: 1px dashed rgba(11, 122, 75, .4);
            padding-bottom: 2px;
        }

        .text-link i {
            font-size: 13px;
            transition: transform .2s ease;
        }

        .text-link:hover i {
            transform: translateX(3px);
        }

        .center-link {
            text-align: center;
            margin-top: 12px;
        }

        /* experience 图文 */
        .experience-note {
            background: var(--white);
        }

        .experience-copy p {
            color: var(--text-second);
            margin-bottom: 22px;
            line-height: 1.9;
        }

        .experience-copy blockquote {
            border-left: 4px solid var(--orange);
            background: rgba(255, 106, 0, .06);
            padding: 20px 24px;
            border-radius: 6px 18px 18px 6px;
            margin: 24px 0;
            color: var(--text-main);
            font-size: 16px;
        }

        .experience-copy blockquote strong {
            color: var(--green);
        }

        .experience-image {
            border-radius: 20px;
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow);
        }

        .experience-image img {
            display: block;
            width: 100%;
            min-height: 320px;
            object-fit: cover;
        }

        .image-note {
            position: absolute;
            left: 16px;
            bottom: 16px;
            background: rgba(12, 24, 18, .82);
            color: #fff;
            padding: 7px 13px;
            border-radius: 999px;
            font-size: 13px;
            backdrop-filter: blur(6px);
        }

        /* data band */
        .data-band {
            background:
                radial-gradient(circle at 80% 10%, rgba(255, 106, 0, .22) 0%, transparent 35%),
                linear-gradient(135deg, var(--dark-green) 0%, #11231B 100%);
            color: #F5F7F4;
        }

        .data-band h2 {
            color: #fff;
        }

        .data-band .section-tag {
            background: rgba(255, 106, 0, .18);
            color: #FFC9A1;
        }

        .metric-card {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 20px;
            padding: 30px 24px;
            height: 100%;
            transition: background .2s ease, transform .2s ease;
        }

        .metric-card:hover {
            background: rgba(255, 255, 255, .09);
            transform: translateY(-4px);
        }

        .metric-card .metric-number {
            font-size: 36px;
            line-height: 1.1;
            font-weight: 800;
            color: #fff;
            letter-spacing: .02em;
        }

        .metric-card .metric-number em {
            font-style: normal;
            color: var(--orange);
        }

        .metric-card h3 {
            color: #fff;
            font-size: 17px;
            margin-top: 16px;
        }

        .metric-card p {
            color: rgba(245, 247, 244, .72);
            font-size: 14px;
        }

        /* dimension 优缺点卡片 */
        .dimension-card {
            background: var(--white);
            border: 1px solid var(--divider);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 26px;
            height: 100%;
            transition: box-shadow .2s, transform .2s;
        }

        .dimension-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .dimension-card .dim-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            background: rgba(11, 122, 75, .1);
            color: var(--green);
            margin-bottom: 18px;
        }

        .dimension-card.good-card {
            border-top: 4px solid var(--green);
        }

        .dimension-card.good-card .dim-icon {
            background: rgba(11, 122, 75, .1);
            color: var(--green);
        }

        .dimension-card.note-card {
            border-top: 4px solid var(--orange);
        }

        .dimension-card.note-card .dim-icon {
            background: rgba(255, 106, 0, .1);
            color: var(--orange);
        }

        .dimension-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .dimension-card p {
            color: var(--text-second);
            margin-bottom: 14px;
        }

        .dim-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 7px;
        }

        .dim-tags span {
            padding: 5px 11px;
            background: var(--soft-gray);
            border-radius: 8px;
            color: var(--text-main);
            font-size: 13px;
        }

        /* faq */
        .faq-section {
            background: var(--soft-gray);
        }

        .faq-accordion .accordion-item {
            background: var(--white);
            border: 1px solid var(--divider);
            border-radius: 16px !important;
            margin-bottom: 15px;
            overflow: hidden;
            box-shadow: none;
            transition: box-shadow .2s;
        }

        .faq-accordion .accordion-button {
            background: var(--white);
            border: none;
            padding: 20px 22px;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-main);
            box-shadow: none;
        }

        .faq-accordion .accordion-button::after {
            filter: hue-rotate(140deg) opacity(.65);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            outline: 3px solid rgba(11, 122, 75, .15);
            outline-offset: -2px;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(11, 122, 75, .05);
            color: var(--green);
            box-shadow: none;
        }

        .faq-accordion .accordion-body {
            padding: 6px 22px 22px;
            color: var(--text-second);
            line-height: 1.8;
        }

        /* cta */
        .cta-band {
            position: relative;
            padding: 90px 0;
            background: linear-gradient(120deg, #0B7A4B 0%, #0E9460 55%, rgba(9, 84, 54, .96) 100%);
            overflow: hidden;
            color: white;
        }

        .cta-band::before {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(255, 106, 0, .18);
        }

        .cta-band h2 {
            color: #fff;
            font-size: 32px;
            line-height: 1.3;
        }

        .cta-band p {
            color: rgba(255, 255, 255, .86);
            font-size: 17px;
        }

        .cta-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .cta-btn {
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            gap: 9px;
            padding: 13px 26px;
            font-weight: 700;
            color: #fff;
            transition: transform .18s ease, background .18s ease, box-shadow .18s ease;
            border: 1px solid rgba(255, 255, 255, .3);
            background: rgba(255, 255, 255, .13);
        }

        .cta-btn.primary {
            background: #fff;
            color: var(--green-deep);
            border: none;
            box-shadow: 0 8px 22px rgba(7, 92, 56, .18);
        }

        .cta-btn.orange-btn {
            background: var(--orange);
            border-color: var(--orange);
            color: #fff;
        }

        .cta-btn:hover {
            transform: translateY(-3px);
            background: var(--orange);
            color: #fff;
            border-color: var(--orange);
        }

        .cta-btn.primary:hover {
            background: var(--orange);
            border-color: var(--orange);
        }

        .cta-meta {
            margin-top: 30px;
            color: rgba(255, 255, 255, .75);
            font-size: 13px;
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
        }

        /* ===== footer ===== */
        .site-footer {
            background: var(--dark-green);
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            line-height: 1.7;
        }

        .site-footer a {
            color: rgba(255, 255, 255, .7);
            text-decoration: none;
            transition: color .2s ease;
        }

        .site-footer a:hover {
            color: var(--orange);
        }

        .site-footer .container {
            padding-top: 64px;
            padding-bottom: 30px;
        }

        .footer-top {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            padding-bottom: 34px;
            border-bottom: 1px solid rgba(255, 255, 255, .13);
            margin-bottom: 38px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #fff;
            font-size: 19px;
            font-weight: 700;
        }

        .fb-icon {
            display: inline-flex;
            width: 36px;
            height: 36px;
            border-radius: 11px;
            align-items: center;
            justify-content: center;
            background: var(--green);
            color: #fff;
            font-size: 16px;
        }

        .footer-appbtns {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-appbtns a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            border: 1px solid rgba(255, 255, 255, .2);
            background: rgba(255, 255, 255, .06);
            border-radius: 999px;
            padding: 8px 16px;
            font-weight: 600;
            color: #fff;
            transition: all .2s;
        }

        .footer-appbtns a:hover {
            border-color: var(--orange);
            background: rgba(255, 106, 0, .2);
            color: #fff;
        }

        .footer-links-group {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding-bottom: 32px;
        }

        .footer-col h5 {
            color: #fff;
            font-size: 15px;
            margin-bottom: 14px;
        }

        .footer-col p {
            color: rgba(255, 255, 255, .56);
            font-size: 14px;
            max-width: 320px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col li {
            margin-bottom: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding-top: 22px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            color: rgba(255, 255, 255, .55);
            font-size: 13px;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .55);
        }

        .footer-bottom a:hover {
            color: var(--orange);
        }

        /* responsive */
        @media (max-width: 1199px) {
            .navbar .nav-link {
                padding-left: 10px;
                padding-right: 10px;
                font-size: 14px;
            }

            .search-pill {
                width: 180px;
            }
        }

        @media (max-width: 991.98px) {
            .navbar {
                padding-top: 10px;
                padding-bottom: 10px;
            }

            .navbar-collapse {
                background: #fff;
                border-radius: 18px;
                padding: 18px;
                margin-top: 10px;
                box-shadow: 0 20px 40px rgba(12, 40, 25, .12);
                border: 1px solid var(--divider);
            }

            .navbar-nav {
                border-bottom: 1px solid var(--divider);
                padding-bottom: 14px;
                margin-bottom: 16px;
            }

            .navbar .nav-link {
                padding: 10px 0;
                color: var(--text-main);
            }

            .navbar .nav-link::after {
                bottom: 4px;
            }

            .header-right {
                flex-wrap: wrap;
                width: 100%;
            }

            .search-pill {
                width: 100%;
                flex: 1 1 auto;
                min-width: 0;
            }

            .download-btn {
                margin-left: auto;
            }

            .category-hero {
                padding: 52px 0 44px;
            }

            .category-hero h1 {
                font-size: 30px;
            }

            .hero-asset {
                margin-top: 26px;
            }

            .section {
                padding: 70px 0;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .footer-links-group {
                grid-template-columns: 1fr 1fr;
            }

            .metric-card {
                margin-bottom: 16px;
            }
        }

        @media (max-width: 767px) {
            .section {
                padding: 56px 0;
            }

            .section-head {
                margin-bottom: 34px;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .category-hero h1 {
                font-size: 26px;
            }

            .category-hero .hero-text {
                font-size: 15px;
            }

            .hero-metrics {
                gap: 18px;
            }

            .hero-metric-item .hero-metric-value {
                font-size: 22px;
            }

            .rating-line {
                margin-bottom: 20px;
            }

            .review-card {
                padding: 22px;
            }

            .data-band .metric-card {
                padding: 24px 20px;
            }

            .metric-card .metric-number {
                font-size: 32px;
            }

            .cta-btn-group {
                width: 100%;
            }

            .cta-btn {
                width: 100%;
                justify-content: center;
            }

            .footer-top {
                flex-direction: column;
            }

            .footer-appbtns {
                flex-direction: column;
                width: 100%;
            }

            .footer-appbtns a {
                justify-content: center;
                width: 100%;
            }

            .footer-links-group {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .brand-text {
                font-size: 16px;
            }

            .navbar .nav-link {
                font-size: 15px;
            }

            .category-hero h1 {
                font-size: 22px;
            }

            .category-hero {
                padding: 40px 0 36px;
            }

            .category-hero .hero-badge,
            .section-tag {
                font-size: 12px;
            }

            .section-head h2 {
                font-size: 22px;
            }

            .search-pill {
                height: 42px;
            }

            .download-btn {
                padding: 9px 16px;
                font-size: 13px;
            }

            .rating-total-card,
            .rating-list-card {
                padding: 22px;
            }

            .review-user h3 {
                font-size: 14px;
            }

            .experience-copy blockquote {
                padding: 16px;
                font-size: 15px;
            }

            .faq-accordion .accordion-button {
                padding: 16px 14px;
                font-size: 15px;
            }

            .cta-band h2 {
                font-size: 24px;
            }

            .cta-meta {
                flex-direction: column;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0B7A4B;
            --primary-dark: #085F3A;
            --primary-light: #E4F3EC;
            --accent: #FF6A00;
            --accent-dark: #E85E00;
            --dark: #0C1812;
            --dark-2: #12291D;
            --bg-soft: #F5F7F4;
            --white: #FFFFFF;
            --text: #17211B;
            --muted: #5A675E;
            --muted-light: #8A958D;
            --line: #E4E8E2;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 12px 30px rgba(12, 40, 25, 0.07);
            --shadow-hover: 0 18px 40px rgba(12, 40, 25, 0.12);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
            background: var(--white);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

        a:hover {
            color: var(--accent-dark);
        }

        p {
            margin: 0 0 1.1rem;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text);
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 0.6em;
            letter-spacing: -0.01em;
        }

        input,
        button,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1240px;
        }

        section[id] {
            scroll-margin-top: 80px;
        }

        /* selection */
        ::selection {
            background: rgba(11, 122, 75, 0.18);
            color: var(--primary-dark);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(11, 122, 75, 0.35);
            outline-offset: 2px;
        }

        /* ===== Button system ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            padding: 11px 24px;
            border-width: 1px;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .btn i {
            font-size: 0.95em;
        }

        .btn-green {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .btn-green:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-accent {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 16px 36px rgba(255, 106, 0, 0.26);
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.75);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-cta-white {
            background: #fff;
            color: var(--primary-dark);
            border-color: #fff;
        }

        .btn-cta-white:hover {
            background: rgba(255, 255, 255, 0.9);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 14px 34px rgba(255, 255, 255, 0.12);
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
        }

        /* ===== site header ===== */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--line);
            position: sticky;
            top: 0;
            z-index: 1080;
            transition: box-shadow 0.25s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 6px 20px rgba(15, 40, 25, 0.06);
        }

        .navbar {
            min-height: 72px;
            padding: 0;
        }

        .navbar>.container {
            display: flex;
            flex-wrap: inherit;
            align-items: center;
            justify-content: flex-start;
            gap: 22px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }

        .brand-mark {
            width: 38px;
            height: 38px;
            flex: 0 0 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), #15A469);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            box-shadow: 0 8px 18px rgba(11, 122, 75, 0.24);
        }

        .brand-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .brand-logo:hover .brand-text {
            color: var(--primary);
        }

        .brand-logo:hover .brand-mark {
            transform: scale(1.04);
        }

        .navbar-collapse {
            flex-grow: 1;
        }

        .navbar-nav {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .navbar-nav .nav-link {
            padding: 9px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--muted);
            border-radius: 8px;
            position: relative;
            white-space: nowrap;
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 700;
            background: var(--primary-light);
        }

        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: 2px;
            width: 18px;
            height: 3px;
            border-radius: 999px;
            background: var(--accent);
        }

        .header-right {
            align-items: center;
            gap: 14px;
            margin-left: auto;
        }

        .search-pill {
            width: 195px;
            height: 42px;
            display: flex;
            align-items: center;
            gap: 9px;
            padding: 0 16px;
            background: var(--bg-soft);
            border: 1px solid var(--line);
            border-radius: 999px;
            transition: all 0.25s ease;
        }

        .search-pill i {
            font-size: 14px;
            color: var(--muted-light);
        }

        .search-pill input {
            border: 0;
            background: transparent;
            width: 100%;
            height: 100%;
            font-size: 14px;
            color: var(--text);
            outline: none;
        }

        .search-pill input::placeholder {
            color: var(--muted-light);
        }

        .search-pill:focus-within {
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(11, 122, 75, 0.1);
        }

        .download-btn {
            height: 42px;
            padding: 0 20px;
            font-size: 14px;
        }

        .navbar-toggler {
            border: 1px solid var(--line);
            border-radius: 10px;
            color: var(--primary);
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            background: #fff;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(11, 122, 75, 0.15);
        }

        @media (max-width: 1199.98px) {
            .navbar-nav .nav-link {
                padding: 8px 10px;
                font-size: 14px;
            }

            .navbar>.container {
                gap: 12px;
            }

            .search-pill {
                width: 150px;
            }

            .brand-text {
                font-size: 17px;
            }
        }

        @media (max-width: 991.98px) {
            .navbar {
                min-height: 66px;
            }

            .navbar-toggler {
                margin-left: auto;
            }

            .navbar-collapse {
                background: #fff;
                border-top: 1px solid var(--line);
                margin-top: 12px;
                padding: 18px 0 20px;
                max-height: calc(100vh - 70px);
                overflow-y: auto;
            }

            .navbar-nav {
                align-items: stretch;
                gap: 4px;
                padding: 0 4px;
            }

            .navbar-nav .nav-link {
                padding: 13px 14px;
                font-size: 16px;
                border-radius: 10px;
            }

            .navbar-nav .nav-link.active::after {
                display: none;
            }

            .header-right {
                margin-left: 0;
                margin-top: 16px;
                padding: 0 4px;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
            }

            .search-pill {
                width: 100%;
                height: 46px;
            }

            .download-btn {
                height: 46px;
                width: 100%;
            }
        }

        /* ===== breadcrumb / hero ===== */
        .breadcrumb-nav {
            margin-bottom: 14px;
        }

        .breadcrumb-nav ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            padding: 0;
            margin: 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
        }

        .breadcrumb-nav li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-nav li+li::before {
            content: "/";
            color: rgba(255, 255, 255, 0.42);
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
        }

        .breadcrumb-nav a:hover {
            color: #fff;
        }

        .page-hero {
            position: relative;
            padding: 80px 0 86px;
            background: url("/assets/images/backpic/back-1.webp") center center / cover no-repeat;
            color: #fff;
            isolation: isolate;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            z-index: -1;
            background: linear-gradient(105deg, rgba(7, 31, 20, 0.96) 0%, rgba(7, 31, 20, 0.86) 45%, rgba(9, 58, 35, 0.62) 100%);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.85fr);
            gap: 50px;
            align-items: center;
        }

        .hero-copy {
            max-width: 680px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }

        .hero-copy h1 {
            color: #fff;
            font-size: clamp(30px, 4vw, 42px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .hero-copy .lead {
            font-size: 16px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .hero-media {
            position: relative;
        }

        .hero-media img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            border-radius: 22px;
            box-shadow: 0 24px 60px rgba(3, 18, 10, 0.45);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        @media (max-width: 991.98px) {
            .page-hero {
                padding: 56px 0 62px;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .hero-media {
                max-width: 480px;
            }
        }

        /* ===== section frame ===== */
        .section {
            padding: 96px 0;
        }

        .section-sm {
            padding: 64px 0;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 15px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-tag i {
            font-size: 13px;
        }

        .section-head {
            margin-bottom: 48px;
        }

        .section-head h2 {
            font-size: clamp(26px, 2.6vw, 34px);
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .section-head p {
            max-width: 760px;
            color: var(--muted);
            font-size: 16px;
            margin-bottom: 0;
        }

        .section-head.center {
            text-align: center;
        }

        .section-head.center p {
            margin-left: auto;
            margin-right: auto;
        }

        .bg-soft {
            background: var(--bg-soft);
        }

        @media (max-width: 991.98px) {
            .section {
                padding: 68px 0;
            }
        }

        /* ===== feature split ===== */
        .feature-showcase {
            background: #fff;
        }

        .feature-split+.feature-split {
            border-top: 1px solid var(--line);
            margin-top: 26px;
        }

        .feature-split {
            display: grid;
            grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
            gap: 56px;
            align-items: center;
            padding: 30px 0;
        }

        .feature-media img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            border-radius: 18px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(12, 40, 25, 0.06);
        }

        .feature-media img:hover {
            box-shadow: var(--shadow-hover);
        }

        .feature-content .feature-kicker {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            border-radius: 999px;
            padding: 5px 14px;
            margin-bottom: 16px;
        }

        .feature-content h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .feature-content p {
            color: var(--muted);
            font-size: 16px;
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .feature-content ul {
            list-style: none;
            padding: 0;
            margin: 18px 0 0;
        }

        .feature-content li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 10px;
            color: var(--text);
            font-size: 15px;
            line-height: 1.7;
        }

        .feature-content li::before {
            content: "\f00c";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 1px;
            color: var(--primary);
            font-size: 15px;
        }

        @media (max-width: 991.98px) {
            .feature-split {
                grid-template-columns: 1fr;
                gap: 30px;
                padding: 34px 0;
            }

            .feature-content h3 {
                font-size: 21px;
            }
        }

        /* ===== func overview ===== */
        .function-overview {
            background: var(--bg-soft);
        }

        .func-layout {
            display: grid;
            grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
            gap: 28px;
            align-items: stretch;
        }

        .func-info {
            position: relative;
            overflow: hidden;
            background: linear-gradient(150deg, #0B7A4B 0%, #14895B 100%);
            border-radius: var(--radius);
            padding: 38px 34px;
            color: #fff;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-height: 100%;
        }

        .func-info::after {
            content: "";
            position: absolute;
            right: -70px;
            bottom: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.14) 0%, rgba(255, 255, 255, 0) 70%);
        }

        .func-info h3 {
            color: #fff;
            font-size: 26px;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .func-info p {
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
        }

        .func-points {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            position: relative;
            z-index: 1;
        }

        .func-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: rgba(255, 255, 255, 0.95);
            margin-bottom: 12px;
            font-size: 15px;
        }

        .func-points li i {
            margin-top: 4px;
            color: #FFD8C2;
            font-size: 15px;
        }

        .func-info .btn {
            position: relative;
            z-index: 2;
            align-self: flex-start;
        }

        .func-items {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 18px;
        }

        .func-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 14px;
            padding: 28px 24px;
            transition: all 0.28s ease;
        }

        .func-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(11, 122, 75, 0.3);
        }

        .func-icon {
            width: 46px;
            height: 46px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 13px;
            font-size: 19px;
            margin-bottom: 16px;
        }

        .func-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .func-item p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--muted);
            margin: 0;
        }

        @media (max-width: 991.98px) {
            .func-layout {
                grid-template-columns: 1fr;
            }

            .func-info {
                min-height: auto;
                padding: 36px 30px;
            }

            .func-items {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575.98px) {
            .func-items {
                grid-template-columns: 1fr;
            }
        }

        /* ===== stats band ===== */
        .stats-band {
            background: linear-gradient(135deg, #0C1812 0%, #0F2419 60%, #143522 100%);
            padding: 84px 0;
            color: #fff;
        }

        .stats-heading {
            text-align: center;
            margin-bottom: 46px;
        }

        .stats-heading .section-tag {
            background: rgba(255, 255, 255, 0.1);
            color: #d8f0e4;
        }

        .stats-heading h2 {
            color: #fff;
            font-size: clamp(24px, 2.6vw, 32px);
            margin-bottom: 12px;
        }

        .stats-heading p {
            color: rgba(255, 255, 255, 0.7);
            margin: 0 auto;
            max-width: 680px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .stats-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            padding: 34px 20px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .stats-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
            border-color: rgba(255, 255, 255, 0.24);
        }

        .stats-number {
            display: block;
            font-size: clamp(30px, 3.2vw, 44px);
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }

        .stats-item p {
            margin: 0;
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            line-height: 1.6;
        }

        @media (max-width: 991.98px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-band {
                padding: 68px 0;
            }
        }

        @media (max-width: 575.98px) {
            .stats-grid {
                gap: 12px;
            }

            .stats-item {
                padding: 26px 12px;
            }
        }

        /* ===== steps ===== */
        .steps-section {
            background: #fff;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(5, minmax(0, 1fr));
            gap: 18px;
        }

        .step-item {
            position: relative;
            padding: 30px 22px 26px;
            background: var(--bg-soft);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            transition: all 0.28s ease;
        }

        .step-item:hover {
            border-color: rgba(11, 122, 75, 0.28);
            box-shadow: var(--shadow);
            transform: translateY(-4px);
            background: #fff;
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 30px;
            background: #FFF1E6;
            color: var(--accent);
            border-radius: 999px;
            font-weight: 800;
            font-size: 14px;
            margin-bottom: 18px;
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
            line-height: 1.75;
        }

        @media (max-width: 1199.98px) {
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            .step-item:nth-child(n+4) {
                margin-top: 8px;
            }
        }

        @media (max-width: 991.98px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                max-width: 640px;
                margin: 0 auto;
            }
        }

        @media (max-width: 575.98px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ section ===== */
        .faq-section {
            background: var(--bg-soft);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            align-items: start;
            gap: 16px 20px;
        }

        .faq-accordion .accordion-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius) !important;
            overflow: hidden;
            margin-bottom: 0;
        }

        .faq-accordion .accordion-button {
            background: #fff;
            color: var(--text);
            font-size: 16px;
            font-weight: 700;
            padding: 20px 22px;
            box-shadow: none;
            border-radius: 0;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary-dark);
            box-shadow: none;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 4px rgba(11, 122, 75, 0.12);
            outline: none;
        }

        .faq-accordion .accordion-button::after {
            filter: grayscale(0.4);
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            filter: none;
        }

        .faq-accordion .accordion-body {
            padding: 2px 22px 22px;
        }

        .faq-accordion .accordion-body p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
            margin: 0;
        }

        @media (max-width: 991.98px) {
            .faq-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== download CTA ===== */
        .download-cta {
            position: relative;
            padding: 90px 0 70px;
            background:
                radial-gradient(700px 260px at 85% 12%, rgba(255, 106, 0, 0.22), transparent 60%),
                radial-gradient(900px 320px at 10% 100%, rgba(17, 142, 82, 0.2), transparent 60%),
                linear-gradient(135deg, #0C1812 0%, #12291D 52%, #0e1f16 100%);
            color: #fff;
            text-align: center;
            isolation: isolate;
            overflow: hidden;
        }

        .cta-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #fff;
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .download-cta h2 {
            color: #fff;
            font-size: clamp(26px, 3vw, 36px);
            max-width: 720px;
            margin: 0 auto 14px;
        }

        .download-cta .cta-desc {
            color: rgba(255, 255, 255, 0.82);
            max-width: 680px;
            margin: 0 auto 30px;
            font-size: 16px;
        }

        .cta-btn-row {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 24px;
        }

        .btn-cta-accent {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            padding: 14px 30px;
        }

        .btn-cta-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 14px 34px rgba(255, 106, 0, 0.32);
        }

        .btn-cta-apple {
            background: #fff;
            border-color: #fff;
            color: var(--text);
            padding: 14px 30px;
        }

        .btn-cta-apple:hover {
            background: rgba(255, 255, 255, 0.9);
            color: var(--text);
            transform: translateY(-2px);
            box-shadow: 0 14px 34px rgba(255, 255, 255, 0.14);
        }

        .btn-cta-ghost {
            border: 1px solid rgba(255, 255, 255, 0.66);
            color: #fff;
            padding: 14px 30px;
        }

        .btn-cta-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }

        .cta-meta {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 18px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
        }

        .cta-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .cta-meta i {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 575.98px) {
            .download-cta {
                padding: 64px 0 56px;
            }

            .cta-btn-row {
                flex-direction: column;
                align-items: stretch;
                max-width: 420px;
                margin-left: auto;
                margin-right: auto;
            }
        }

        /* ===== footer ===== */
        .site-footer {
            background: var(--dark);
            color: #9AAC9F;
            padding-top: 70px;
        }

        .footer-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 11px;
            color: #fff;
            font-size: 19px;
            font-weight: 700;
            letter-spacing: -0.01em;
        }

        .fb-icon {
            width: 36px;
            height: 36px;
            border-radius: 11px;
            background: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }

        .footer-appbtns {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-appbtns a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: 999px;
            padding: 9px 20px;
            font-size: 14px;
            text-decoration: none;
            transition: all 0.2s ease;
        }

        .footer-appbtns a:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-links-group {
            display: grid;
            grid-template-columns: 1.45fr 1fr 1fr 1fr;
            gap: 40px;
            padding: 52px 0 42px;
        }

        .footer-col h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-col p {
            color: #93A59A;
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col li {
            margin-bottom: 11px;
        }

        .footer-col li:last-child {
            margin-bottom: 0;
        }

        .footer-col a {
            color: #93A59A;
            font-size: 14px;
            text-decoration: none;
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            color: #7F9084;
            font-size: 13px;
        }

        .footer-bottom a {
            color: #7F9084;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        @media (max-width: 991.98px) {
            .footer-links-group {
                grid-template-columns: 1fr 1fr;
                gap: 34px;
            }
        }

        @media (max-width: 575.98px) {
            .site-footer {
                padding-top: 56px;
            }

            .footer-top {
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-links-group {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category4 */
:root {
    --green: #0B7A4B;
    --green-dark: #085A38;
    --green-light: #E8F5EE;
    --orange: #FF6A00;
    --orange-dark: #E85E00;
    --deep-green: #0C1812;
    --bg-soft: #F5F7F4;
    --text-main: #17211B;
    --text-secondary: #5A675E;
    --text-muted: #8A958D;
    --border: #E4E8E2;
    --white: #FFFFFF;
    --radius: 16px;
    --radius-lg: 22px;
    --shadow-sm: 0 12px 30px rgba(12, 40, 25, .07);
    --shadow-md: 0 18px 40px rgba(12, 40, 25, .12);
    --transition: all .25s ease;
}
*,
*::before,
*::after {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--white);
    color: var(--text-main);
    font-size: 16px;
    line-height: 1.8;
    overflow-x: hidden;
}
a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}
img {
    max-width: 100%;
}
ul,
ol {
    margin: 0;
    padding: 0;
}
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 800;
    color: #0C1812;
}
input,
button,
select,
textarea {
    font-family: inherit;
}
button:focus,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
.accordion-button:focus {
    outline: 3px solid rgba(11, 122, 75, .28) !important;
    outline-offset: 2px;
}
.container {
    max-width: 1220px;
    padding-left: 22px;
    padding-right: 22px;
}
.section-pad {
    padding: 88px 0;
}
.section-pad-sm {
    padding: 60px 0;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1050;
    background: rgba(255, 255, 255, .96);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(228, 232, 226, .9);
    transition: box-shadow .3s ease;
}
.site-header.scrolled {
    box-shadow: 0 6px 20px rgba(15, 40, 25, .06);
}
.site-header .navbar {
    min-height: 72px;
    padding-top: 0;
    padding-bottom: 0;
}
.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 13px;
    background: linear-gradient(145deg, var(--green), #109C63);
    color: #fff;
    font-size: 17px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 14px rgba(11, 122, 75, .22);
    transform: rotate(-6deg);
    transition: var(--transition);
}
.brand-logo:hover .brand-mark {
    transform: rotate(0deg) scale(1.05);
}
.brand-text {
    font-size: 19px;
    font-weight: 800;
    color: #0C1812;
    letter-spacing: .01em;
    white-space: nowrap;
}
.site-header .navbar-expand-lg .navbar-nav {
    align-items: stretch;
    margin: 0 auto;
}
.site-header .navbar-nav .nav-link {
    display: flex;
    align-items: center;
    padding: 0 15px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
    position: relative;
    transition: color .2s ease;
    white-space: nowrap;
}
.site-header .navbar-nav .nav-link:hover {
    color: var(--green);
}
.site-header .navbar-nav .nav-link.active {
    color: var(--green);
    font-weight: 700;
}
.site-header .navbar-nav .nav-link.active::after {
    content: "";
    position: absolute;
    left: 13px;
    right: 13px;
    bottom: 0;
    height: 3px;
    border-radius: 99px;
    background: var(--green);
}
.header-right {
    align-items: center;
    gap: 12px;
    padding-left: 4px;
}
.search-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #F3F6F2;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 8px 16px;
    width: 190px;
    transition: var(--transition);
}
.search-pill:focus-within {
    border-color: var(--green);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(11, 122, 75, .1);
}
.search-pill i {
    color: var(--text-muted);
    font-size: 14px;
}
.search-pill input {
    border: 0;
    background: transparent;
    outline: none;
    width: 100%;
    font-size: 14px;
    color: var(--text-main);
    padding: 0;
}
.btn {
    border-radius: 999px;
    font-weight: 700;
    padding: 11px 22px;
    font-size: 15px;
    border: 2px solid transparent;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    white-space: nowrap;
}
.btn-green {
    background: var(--green);
    border-color: var(--green);
    color: #fff;
}
.btn-green:hover {
    background: var(--green-dark);
    border-color: var(--green-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(11, 122, 75, .22);
}
.btn-orange {
    background: var(--orange);
    border-color: var(--orange);
    color: #fff;
    box-shadow: 0 10px 22px rgba(255, 106, 0, .22);
}
.btn-orange:hover {
    background: var(--orange-dark);
    border-color: var(--orange-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 16px 28px rgba(232, 94, 0, .24);
}
.btn-outline-green {
    border: 2px solid var(--green);
    color: var(--green);
    background: transparent;
}
.btn-outline-green:hover {
    background: var(--green);
    color: #fff;
    transform: translateY(-2px);
}
.btn-white {
    background: #fff;
    border-color: #fff;
    color: #0C1812;
}
.btn-white:hover {
    background: #F1F7F3;
    color: var(--green);
}

/* Category hero */
.cat-hero {
    position: relative;
    background: var(--bg-soft);
    padding: 74px 0 84px;
    overflow: hidden;
}
.cat-hero-bg {
    position: absolute;
    inset: 0;
    background: url("/assets/images/backpic/back-2.png") center / cover no-repeat;
    opacity: .14;
    z-index: 0;
}
.cat-hero::after {
    content: "";
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: rgba(11, 122, 75, .1);
    right: -180px;
    top: -160px;
    z-index: 0;
}
.cat-hero .container {
    position: relative;
    z-index: 1;
}
.cat-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(11, 122, 75, .1);
    color: var(--green);
    border-radius: 999px;
    padding: 6px 16px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 16px;
}
.cat-hero h1 {
    font-size: 38px;
    font-weight: 900;
    margin: 0 0 18px;
    line-height: 1.25;
    color: #0C1812;
}
.cat-hero .hero-lead {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 560px;
    margin-bottom: 30px;
    line-height: 1.9;
}
.hero-cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}
.hero-quick-card {
    background: rgba(255, 255, 255, .92);
    border: 1px solid rgba(228, 232, 226, .9);
    border-radius: var(--radius-lg);
    padding: 24px 26px;
    box-shadow: var(--shadow-sm);
    position: relative;
    z-index: 1;
}
.hero-quick-card .hqc-title {
    font-size: 16px;
    font-weight: 800;
    color: #0C1812;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
    margin-bottom: 14px;
}
.hero-quick-card .hqc-title i {
    color: var(--green);
    margin-right: 8px;
}
.hero-quick-card ul {
    list-style: none;
}
.hero-quick-card li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 7px 0;
    font-size: 14px;
    color: var(--text-secondary);
}
.hero-quick-card li i {
    color: var(--orange);
    margin-top: 6px;
    font-size: 12px;
}

/* Section title */
.section-head {
    max-width: 720px;
    margin: 0 auto 46px;
}
.section-head.text-center {
    text-align: center;
}
.eyebrow {
    display: inline-block;
    color: var(--green);
    font-weight: 700;
    font-size: 14px;
    background: rgba(11, 122, 75, .08);
    border-radius: 999px;
    padding: 5px 14px;
    margin-bottom: 12px;
}
.section-title {
    font-size: 32px;
    font-weight: 900;
    line-height: 1.3;
    margin: 0 0 12px;
    color: #0C1812;
}
.section-subtitle {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 0;
}

/* Topic cards */
.topics-section {
    background: #fff;
}
.topic-card {
    background: #FCFDFC;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
}
.topic-card:hover {
    transform: translateY(-5px);
    border-color: #BDE2CE;
    box-shadow: var(--shadow-md);
}
.topic-icon {
    width: 54px;
    height: 54px;
    border-radius: 17px;
    background: var(--green-light);
    color: var(--green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 23px;
    margin-bottom: 18px;
    transition: var(--transition);
}
.topic-card:hover .topic-icon {
    background: var(--green);
    color: #fff;
}
.topic-card h3 {
    font-size: 18px;
    font-weight: 800;
    color: #0C1812;
    margin-bottom: 12px;
}
.topic-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.85;
    margin-bottom: 18px;
    flex: 1;
}
.topic-more {
    color: var(--green);
    font-weight: 700;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.topic-more:hover {
    color: var(--orange);
    gap: 10px;
}

/* FAQ section */
.faq-section {
    background: var(--bg-soft);
}
.faq-wrap .accordion {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.faq-wrap .accordion-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: #fff;
    box-shadow: 0 4px 14px rgba(12, 40, 25, .02);
}
.faq-wrap .accordion-button {
    background: #fff;
    color: #17211B;
    font-weight: 700;
    font-size: 16px;
    padding: 20px 22px;
    box-shadow: none;
    border: 0;
    line-height: 1.6;
}
.faq-wrap .accordion-button:hover {
    background: #FAFBF8;
}
.faq-wrap .accordion-button:not(.collapsed) {
    background: rgba(11, 122, 75, .06);
    color: var(--green);
}
.faq-wrap .accordion-button::after {
    content: "\f078";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    background: none;
    width: auto;
    height: auto;
    color: var(--green);
    font-size: 14px;
    transition: transform .25s ease;
}
.faq-wrap .accordion-button:not(.collapsed)::after {
    transform: rotate(180deg);
}
.faq-wrap .accordion-body {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.9;
    padding: 8px 22px 22px;
    border-top: 1px dashed #E4E8E2;
}

/* More tips block */
.tips-section {
    background: #fff;
}
.tips-section .tips-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    position: relative;
}
.tips-section .tips-img img {
    width: 100%;
    display: block;
    aspect-ratio: 16 / 12;
    object-fit: cover;
}
.tips-section .tips-content {
    padding: 20px 10px 20px 30px;
}
.tips-content h2 {
    font-size: 30px;
    line-height: 1.35;
    margin: 8px 0 14px;
}
.tips-content > p {
    color: var(--text-secondary);
    margin-bottom: 18px;
    max-width: 520px;
}
.check-list {
    list-style: none;
}
.check-list li {
    position: relative;
    padding-left: 32px;
    margin-bottom: 16px;
    color: var(--text-secondary);
}
.check-list li::before {
    content: "\f00c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 2px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--green-light);
    color: var(--green);
    font-size: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.check-list strong {
    color: #17211B;
}

/* Steps */
.steps-section {
    background: var(--bg-soft);
}
.step-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 28px 24px;
    border: 1px solid var(--border);
    height: 100%;
    transition: var(--transition);
}
.step-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
}
.step-num {
    font-size: 14px;
    font-weight: 900;
    color: var(--orange);
    background: rgba(255, 106, 0, .1);
    border-radius: 8px;
    display: inline-block;
    padding: 3px 10px;
    margin-bottom: 14px;
}
.step-card h3 {
    font-size: 17px;
    font-weight: 800;
    margin-bottom: 10px;
}
.step-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.85;
    margin: 0;
}

/* Help form */
.help-section {
    background: #fff;
}
.help-sidecard {
    background: var(--bg-soft);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 28px;
}
.help-sidecard h3 {
    font-size: 19px;
    font-weight: 800;
    margin-bottom: 16px;
}
.help-sidecard ul {
    list-style: none;
}
.help-sidecard li {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px dashed #DDE3DD;
}
.help-sidecard li:last-child {
    border-bottom: 0;
}
.help-sidecard li i {
    color: var(--green);
    margin-top: 4px;
    font-size: 15px;
}
.help-form-wrap {
    background: #FCFDFC;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-sm);
}
.help-form-wrap .form-label {
    font-weight: 700;
    font-size: 14px;
    color: #17211B;
}
.help-form-wrap .form-control,
.help-form-wrap .form-select {
    border: 1px solid #D5DCD6;
    border-radius: 12px;
    min-height: 48px;
    padding: 10px 16px;
    font-size: 15px;
    color: var(--text-main);
    background: #fff;
    transition: var(--transition);
}
.help-form-wrap textarea.form-control {
    min-height: 140px;
    resize: vertical;
}
.help-form-wrap .form-control:focus,
.help-form-wrap .form-select:focus {
    border-color: var(--green);
    box-shadow: 0 0 0 4px rgba(11, 122, 75, .12);
}
.help-form-wrap .btn-submit {
    background: var(--green);
    border-color: var(--green);
    color: #fff;
    border-radius: 999px;
    padding: 12px 34px;
    font-weight: 700;
    border: 0;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}
.help-form-wrap .btn-submit:hover {
    background: var(--green-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(11, 122, 75, .22);
}

/* CTA strip */
.cta-strip {
    background: var(--deep-green);
    position: relative;
    overflow: hidden;
    padding: 58px 0;
}
.cta-strip::before {
    content: "";
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255, 106, 0, .15);
    right: -100px;
    top: -160px;
}
.cta-strip::after {
    content: "";
    position: absolute;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(11, 122, 75, .25);
    left: -80px;
    bottom: -180px;
}
.cta-inner {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}
.cta-strip h2 {
    color: #fff;
    font-size: 30px;
    font-weight: 900;
    margin-bottom: 14px;
}
.cta-strip p {
    color: #C6D5CB;
    font-size: 16px;
    margin-bottom: 28px;
}
.cta-strip .btncta {
    margin: 0 6px;
}

/* Footer */
.site-footer {
    background: var(--deep-green);
    color: rgba(235, 243, 238, .85);
    font-size: 14px;
}
.site-footer .container {
    padding-top: 64px;
}
.footer-top {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-bottom: 34px;
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    color: #fff;
}
.fb-icon {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: var(--green);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
}
.footer-appbtns {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.footer-appbtns a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .2);
    color: #fff;
    border-radius: 999px;
    padding: 9px 20px;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}
.footer-appbtns a:hover {
    background: var(--orange);
    border-color: var(--orange);
    transform: translateY(-2px);
}
.footer-links-group {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding: 36px 0 44px;
    border-top: 1px solid rgba(255, 255, 255, .12);
}
.footer-col h5 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 16px;
}
.footer-col p {
    color: #AFC0B4;
    line-height: 1.85;
    font-size: 14px;
    max-width: 280px;
}
.footer-col ul {
    list-style: none;
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul a {
    color: #AFC0B4;
    display: inline-block;
    position: relative;
}
.footer-col ul a:hover {
    color: var(--orange);
    padding-left: 4px;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .12);
    padding: 18px 0 22px;
    font-size: 13px;
}
.footer-bottom .inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.footer-bottom p {
    margin: 0;
    color: #8EA198;
}
.footer-bottom .legal a {
    color: #8EA198;
    margin-left: 18px;
}
.footer-bottom .legal a:hover {
    color: var(--orange);
}

/* Responsive */
@media (max-width: 1199.98px) and (min-width: 992px) {
    .search-pill {
        display: none;
    }
    .site-header .navbar-nav .nav-link {
        padding: 0 10px;
        font-size: 14px;
    }
}
@media (max-width: 991.98px) {
    .site-header .navbar {
        min-height: auto;
        padding: 10px 0;
    }
    .brand-text {
        font-size: 18px;
    }
    .navbar-toggler {
        border: 0;
        box-shadow: none !important;
        color: #17211B;
        font-size: 21px;
        padding: 6px 10px;
    }
    .navbar-collapse {
        background: #fff;
        padding: 10px 0 18px;
        margin-top: 8px;
    }
    .site-header .navbar-nav .nav-link {
        padding: 12px 8px;
        border-radius: 10px;
        color: var(--text-secondary);
        justify-content: flex-start;
    }
    .site-header .navbar-nav .nav-link.active {
        background: var(--green-light);
        color: var(--green);
    }
    .site-header .navbar-nav .nav-link.active::after {
        display: none;
    }
    .header-right {
        flex-direction: column;
        width: 100%;
        align-items: stretch;
        padding-top: 12px;
        gap: 12px;
    }
    .search-pill {
        width: 100%;
    }
    .header-right .download-btn {
        width: 100%;
    }
    .section-pad {
        padding: 64px 0;
    }
    .cat-hero {
        padding: 52px 0 60px;
    }
    .cat-hero h1 {
        font-size: 30px;
    }
    .section-title {
        font-size: 27px;
    }
    .footer-links-group {
        grid-template-columns: 1fr 1fr;
        gap: 30px 20px;
    }
    .help-form-wrap {
        padding: 24px;
    }
}
@media (max-width: 575.98px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }
    .brand-logo {
        gap: 8px;
    }
    .brand-mark {
        width: 34px;
        height: 34px;
        border-radius: 10px;
    }
    .brand-text {
        font-size: 16.5px;
    }
    .section-pad {
        padding: 56px 0;
    }
    .cat-hero {
        padding: 44px 0 52px;
    }
    .cat-hero h1 {
        font-size: 26px;
    }
    .cat-hero .hero-lead {
        font-size: 15px;
    }
    .hero-cta-group .btn {
        width: 100%;
    }
    .section-head {
        margin-bottom: 32px;
    }
    .section-title {
        font-size: 24px;
    }
    .topic-card {
        padding: 22px 18px;
    }
    .faq-wrap .accordion-button {
        font-size: 15px;
        padding: 17px 16px;
    }
    .faq-wrap .accordion-body {
        padding: 8px 16px 20px;
        font-size: 14px;
    }
    .steps-section .row {
        row-gap: 16px;
    }
    .help-sidecard,
    .help-form-wrap {
        padding: 20px;
    }
    .tips-section .tips-content {
        padding: 16px 0;
    }
    .footer-top {
        flex-direction: column;
        align-items: flex-start;
    }
    .footer-links-group {
        grid-template-columns: 1fr;
        padding-bottom: 28px;
    }
    .footer-appbtns a {
        width: 100%;
    }
    .footer-bottom .inner {
        flex-direction: column;
        text-align: center;
    }
    .cta-strip h2 {
        font-size: 24px;
    }
}