/* roulang page: index */
:root {
            --primary: #1e4e79;
            --primary-dark: #14385c;
            --primary-light: #2c7be5;
            --accent: #b8860b;
            --accent-soft: #f5e8c8;
            --bg: #ffffff;
            --bg-soft: #f4f7fb;
            --bg-warm: #fbf9f4;
            --text: #1a2233;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-strong: #cbd5e1;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);
            --shadow-hover: 0 8px 24px rgba(30, 78, 121, 0.16);
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --bottom-tab-height: 60px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-tap-highlight-color: transparent;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--primary-light);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(44, 123, 229, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button {
            font-family: var(--font-sans);
            cursor: pointer;
            border: none;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .brand .brand-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

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

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

        .main-nav a {
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--bg-soft);
        }

        .main-nav a.active {
            color: var(--primary);
            background: rgba(30, 78, 121, 0.08);
            font-weight: 600;
        }

        .header-cta {
            background: var(--primary);
            color: #fff;
            padding: 9px 20px;
            border-radius: 24px;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            box-shadow: var(--shadow-sm);
        }

        .header-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        /* Bottom Tab Nav - Mobile only */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 200;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border);
            height: var(--bottom-tab-height);
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.06);
        }

        .bottom-tab-nav .tab-list {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            list-style: none;
        }

        .bottom-tab-nav .tab-list li {
            flex: 1;
            height: 100%;
        }

        .bottom-tab-nav .tab-list a {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            height: 100%;
            font-size: 10px;
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
            border-radius: 0;
        }

        .bottom-tab-nav .tab-list a i {
            font-size: 18px;
            transition: var(--transition);
        }

        .bottom-tab-nav .tab-list a:hover,
        .bottom-tab-nav .tab-list a.active {
            color: var(--primary);
        }

        .bottom-tab-nav .tab-list a.active i {
            transform: scale(1.1);
        }

        /* Hero Section */
        .hero {
            position: relative;
            background: linear-gradient(135deg, #eef3f9 0%, #e2ebf5 40%, #f0ead9 100%);
            padding: 60px 0 80px;
            overflow: hidden;
            min-height: calc(100vh - var(--header-height));
            display: flex;
            align-items: center;
        }

        .hero .hero-pattern {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }

        .hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-soft);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        .hero-tag i {
            font-size: 12px;
        }

        .hero h1 {
            font-size: 40px;
            font-weight: 750;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero-desc {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 28px;
            max-width: 540px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            padding: 13px 28px;
            border-radius: 28px;
            font-size: 16px;
            font-weight: 600;
            box-shadow: var(--shadow-md);
        }

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

        .btn-secondary {
            background: #fff;
            color: var(--primary);
            padding: 13px 24px;
            border-radius: 28px;
            font-size: 15px;
            font-weight: 600;
            border: 2px solid var(--border-strong);
            box-shadow: var(--shadow-sm);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            background: var(--bg-soft);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .hero-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat .stat-num {
            font-size: 26px;
            font-weight: 750;
            color: var(--primary);
            line-height: 1.2;
        }

        .hero-stat .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Hero Progress Panel */
        .hero-progress-panel {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            padding: 28px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            border: 1px solid var(--border);
        }

        .progress-panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .progress-panel-header h2 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
        }

        .progress-badge {
            background: rgba(184, 134, 11, 0.12);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 16px;
            white-space: nowrap;
        }

        .progress-ring-wrap {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 12px 0;
        }

        .progress-ring {
            width: 110px;
            height: 110px;
            flex-shrink: 0;
        }

        .progress-ring svg {
            width: 100%;
            height: 100%;
            transform: rotate(-90deg);
        }

        .progress-ring .ring-bg {
            fill: none;
            stroke: var(--bg-soft);
            stroke-width: 10;
        }

        .progress-ring .ring-fg {
            fill: none;
            stroke: var(--primary-light);
            stroke-width: 10;
            stroke-linecap: round;
            transition: stroke-dashoffset 0.8s ease;
        }

        .progress-ring .ring-text {
            transform: rotate(90deg);
            transform-origin: center;
            font-size: 22px;
            font-weight: 750;
            fill: var(--primary);
            text-anchor: middle;
            dominant-baseline: central;
        }

        .progress-ring-info {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .progress-ring-info .pr-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
        }

        .progress-ring-info .pr-detail {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .progress-ring-info .pr-count {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .tier-preview {
            display: flex;
            flex-direction: column;
            gap: 10px;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        .tier-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 10px 14px;
            border-radius: var(--radius-md);
            background: var(--bg-soft);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .tier-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }

        .tier-item.recommended {
            background: rgba(30, 78, 121, 0.06);
            border-color: var(--primary);
        }

        .tier-item .tier-name {
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .tier-item .tier-price {
            font-size: 14px;
            font-weight: 750;
            color: var(--primary);
            white-space: nowrap;
        }

        .tier-tag {
            background: var(--primary);
            color: #fff;
            font-size: 10px;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 8px;
            white-space: nowrap;
        }

        /* Section Base */
        section {
            padding: 64px 0;
        }

        .section-header {
            margin-bottom: 36px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .section-header .section-tag {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .section-header h2 {
            font-size: 30px;
            font-weight: 750;
            color: var(--text);
            line-height: 1.3;
            letter-spacing: -0.3px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 620px;
        }

        /* Product Screenshot Stage */
        .showcase-stage {
            background: var(--bg-soft);
            border-radius: var(--radius-xl);
            padding: 40px;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .showcase-stage .stage-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }

        .showcase-stage .container {
            position: relative;
            z-index: 1;
        }

        .showcase-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 24px;
        }

        .showcase-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
        }

        .showcase-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-strong);
        }

        .showcase-card .sc-img-wrap {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
        }

        .showcase-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }

        .showcase-card:hover img {
            transform: scale(1.04);
        }

        .showcase-card .sc-indicator {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(255, 255, 255, 0.9);
            color: var(--primary);
            font-size: 11px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 14px;
            backdrop-filter: blur(4px);
        }

        .showcase-card .sc-body {
            padding: 18px 20px;
        }

        .showcase-card .sc-body h3 {
            font-size: 16px;
            font-weight: 650;
            color: var(--text);
            margin-bottom: 6px;
        }

        .showcase-card .sc-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

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

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0;
            position: relative;
            counter-reset: step-counter;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 16.66%;
            right: 16.66%;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }

        .step-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 12px;
            padding: 0 24px;
            position: relative;
            z-index: 1;
        }

        .step-circle {
            width: 56px;
            height: 56px;
            background: #fff;
            border: 2px solid var(--primary);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 750;
            box-shadow: 0 0 0 6px #fff;
            transition: var(--transition);
        }

        .step-item:hover .step-circle {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 0 0 6px rgba(30, 78, 121, 0.12);
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 650;
            color: var(--text);
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
        }

        /* Reviews Wall */
        .reviews-section {
            background: var(--bg-soft);
            border-radius: var(--radius-xl);
            margin: 0 24px;
            padding: 64px 24px;
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .review-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .review-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .review-card .review-stars {
            color: #f59e0b;
            font-size: 13px;
            margin-bottom: 12px;
        }

        .review-card .review-text {
            font-size: 14px;
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .review-card .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .review-card .review-avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 600;
            flex-shrink: 0;
        }

        .review-card .review-name {
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
        }

        .review-card .review-date {
            font-size: 11px;
            color: var(--text-light);
        }

        /* Group Buy Progress */
        .groupbuy-section {
            background: #fff;
        }

        .groupbuy-wrap {
            display: grid;
            grid-template-columns: 1fr 1.4fr;
            gap: 32px;
            align-items: start;
        }

        .groupbuy-info h3 {
            font-size: 20px;
            font-weight: 650;
            color: var(--text);
            margin-bottom: 10px;
        }

        .groupbuy-info p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .groupbuy-timer {
            display: flex;
            gap: 10px;
            margin-bottom: 18px;
        }

        .timer-block {
            background: var(--bg-soft);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            text-align: center;
            min-width: 58px;
        }

        .timer-block .timer-num {
            font-size: 22px;
            font-weight: 750;
            color: var(--primary);
            line-height: 1.2;
        }

        .timer-block .timer-label {
            font-size: 10px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .groupbuy-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .gb-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 14px 18px;
            background: var(--bg-soft);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .gb-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }

        .gb-item .gb-left {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }

        .gb-item .gb-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 14px;
        }

        .gb-item .gb-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .gb-item .gb-progress {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .gb-item .gb-bar {
            width: 80px;
            height: 6px;
            background: var(--border);
            border-radius: 3px;
            overflow: hidden;
        }

        .gb-item .gb-bar-fill {
            height: 100%;
            background: var(--primary-light);
            border-radius: 3px;
            transition: width 0.5s ease;
        }

        .gb-item .gb-count {
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        /* News Section */
        .news-section {
            background: var(--bg-warm);
            border-radius: var(--radius-xl);
            margin: 0 24px;
            padding: 64px 24px;
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 32px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .news-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            transition: var(--transition);
            border-bottom: 1px solid var(--border);
        }

        .news-list-item:last-child {
            border-bottom: none;
        }

        .news-list-item:hover {
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .news-list-item .news-date {
            font-size: 12px;
            color: var(--text-light);
            white-space: nowrap;
            padding-top: 3px;
            min-width: 52px;
        }

        .news-list-item .news-content h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.5;
        }

        .news-list-item .news-content h4 a {
            color: var(--text);
        }

        .news-list-item .news-content h4 a:hover {
            color: var(--primary);
        }

        .news-list-item .news-summary {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-sidebar .sidebar-title {
            font-size: 16px;
            font-weight: 650;
            color: var(--text);
            margin-bottom: 4px;
        }

        .sidebar-card {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .sidebar-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .sidebar-card img {
            width: 64px;
            height: 64px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .sidebar-card .sc-info h5 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 2px;
            line-height: 1.4;
        }

        .sidebar-card .sc-info span {
            font-size: 11px;
            color: var(--text-light);
        }

        /* Security Audit */
        .audit-section {
            background: #fff;
        }

        .audit-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .audit-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 18px;
            background: var(--bg-soft);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
        }

        .audit-item i {
            font-size: 18px;
            color: #16a34a;
            margin-top: 2px;
            flex-shrink: 0;
        }

        .audit-item .ai-text h4 {
            font-size: 14px;
            font-weight: 650;
            color: var(--text);
            margin-bottom: 4px;
        }

        .audit-item .ai-text p {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Usage Guide */
        .guide-section {
            background: var(--bg-soft);
            border-radius: var(--radius-xl);
            margin: 0 24px;
            padding: 64px 24px;
        }

        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .guide-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .guide-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .guide-card .gc-icon {
            width: 44px;
            height: 44px;
            background: rgba(30, 78, 121, 0.1);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
        }

        .guide-card h4 {
            font-size: 15px;
            font-weight: 650;
            color: var(--text);
            margin-bottom: 8px;
        }

        .guide-card ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .guide-card ul li {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }

        .guide-card ul li i {
            font-size: 12px;
            color: var(--primary-light);
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* Download CTA */
        .download-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            margin: 0 24px;
            margin-bottom: 64px;
            padding: 64px 24px;
            position: relative;
            overflow: hidden;
        }

        .download-section::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }

        .download-section::before {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .download-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .download-section h2 {
            font-size: 30px;
            font-weight: 750;
            color: #fff;
            margin-bottom: 14px;
        }

        .download-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
            max-width: 560px;
            margin: 0 auto 24px;
        }

        .download-btns {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-download {
            background: #fff;
            color: var(--primary);
            padding: 13px 28px;
            border-radius: 28px;
            font-size: 15px;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-download:hover {
            background: var(--bg-soft);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
        }

        .btn-download-outline {
            background: transparent;
            color: #fff;
            padding: 13px 24px;
            border-radius: 28px;
            font-size: 15px;
            font-weight: 600;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-download-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: #0f1c2e;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
            margin-top: auto;
        }

        .site-footer .container {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            align-items: start;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-brand .brand-name {
            font-size: 19px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand .brand-name .brand-icon {
            width: 34px;
            height: 34px;
            background: var(--primary-light);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 650;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .showcase-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .audit-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 60px;
            }

            .site-header .header-cta {
                padding: 7px 14px;
                font-size: 12px;
            }

            .main-nav {
                display: none;
            }

            .bottom-tab-nav {
                display: block;
            }

            body {
                padding-bottom: var(--bottom-tab-height);
            }

            .hero {
                padding: 40px 0 60px;
                min-height: auto;
            }

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

            .hero h1 {
                font-size: 27px;
                line-height: 1.35;
            }

            .hero-desc {
                font-size: 15px;
                line-height: 1.75;
            }

            .hero-progress-panel {
                padding: 20px;
            }

            .progress-ring-wrap {
                gap: 16px;
            }
            .progress-ring {
                width: 88px;
                height: 88px;
            }

            section {
                padding: 40px 0;
            }

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

            .showcase-grid {
                grid-template-columns: 1fr;
            }
            .showcase-stage {
                padding: 20px;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .steps-grid::before {
                display: none;
            }
            .step-item {
                padding: 0;
            }

            .reviews-section {
                margin: 0 12px;
                padding: 40px 16px;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }

            .groupbuy-wrap {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .news-section {
                margin: 0 12px;
                padding: 40px 16px;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .audit-grid {
                grid-template-columns: 1fr;
            }

            .guide-section {
                margin: 0 12px;
                padding: 40px 16px;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }

            .download-section {
                margin: 0 12px 40px;
                padding: 40px 16px;
            }
            .download-section h2 {
                font-size: 24px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .hero h1 {
                font-size: 23px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat .stat-num {
                font-size: 22px;
            }

            .progress-ring-wrap {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }

            .tier-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .groupbuy-timer {
                flex-wrap: wrap;
            }

            .gb-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .gb-item .gb-progress {
                width: 100%;
                justify-content: space-between;
            }
            .gb-item .gb-bar {
                flex: 1;
            }

            .news-list-item {
                flex-direction: column;
                gap: 6px;
            }
            .news-list-item .news-date {
                padding-top: 0;
            }

            .download-btns {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-download,
            .btn-download-outline {
                width: 100%;
                justify-content: center;
            }
        }