:root {
            --primary: #1f5e3f;
            --primary-light: #2e7d54;
            --primary-dark: #164429;
            --accent: #c9975f;
            --accent-light: #dbb287;
            --accent-dark: #a87a48;
            --bg: #f9f6f1;
            --bg-deep: #f0ebe2;
            --bg-dark: #1d1a17;
            --text: #2d2a26;
            --text-light: #6f6a63;
            --text-white: #f8f4ee;
            --border: #e5ddd0;
            --border-dark: #d0c4b2;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 30px rgba(29, 26, 23, 0.08);
            --shadow-lg: 0 16px 48px rgba(29, 26, 23, 0.14);
            --transition: all 0.3s ease;
            --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ====== Button ====== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.2;
            border: 2px solid transparent;
            transition: var(--transition);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(201, 151, 95, 0.5);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(31, 94, 63, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(31, 94, 63, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(31, 94, 63, 0.3);
        }
        .btn-ghost {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: #1d1a17;
            box-shadow: 0 4px 16px rgba(201, 151, 95, 0.35);
        }
        .btn-accent:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 151, 95, 0.4);
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 14px;
        }
        .btn-outline-dark {
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline-dark:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ====== Header / Nav ====== */
        .site-header {
            background: rgba(249, 246, 241, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            min-height: 76px;
        }
        .logo {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1.3;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .logo:hover {
            color: var(--primary-light);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-link {
            padding: 10px 20px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(31, 94, 63, 0.06);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(31, 94, 63, 0.1);
            font-weight: 600;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .stage-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(46, 125, 84, 0.1);
            border: 1px solid rgba(46, 125, 84, 0.3);
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }
        .chip-dot {
            width: 8px;
            height: 8px;
            background: var(--primary-light);
            border-radius: 50%;
            position: relative;
        }
        .chip-dot::after {
            content: "";
            position: absolute;
            inset: -3px;
            border-radius: 50%;
            background: rgba(46, 125, 84, 0.3);
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% {
                transform: scale(0.6);
                opacity: 1;
            }
            70% {
                transform: scale(1.4);
                opacity: 0;
            }
            100% {
                opacity: 0;
            }
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ====== Section Common ====== */
        .section {
            padding: 96px 0;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }
        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ====== Hero ====== */
        .hero {
            position: relative;
            background: var(--bg-dark);
            color: var(--text-white);
            padding: 80px 0 64px;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.45;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 12, 10, 0.82) 0%, rgba(29, 26, 23, 0.68) 50%, rgba(31, 94, 63, 0.55) 100%);
        }
        .hero-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 60px;
            align-items: center;
        }
        .hero-chip {
            display: inline-block;
            padding: 8px 20px;
            background: rgba(201, 151, 95, 0.18);
            border: 1px solid rgba(201, 151, 95, 0.4);
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-light);
            letter-spacing: 1px;
            margin-bottom: 24px;
        }
        .hero h1 {
            font-size: 40px;
            font-weight: 900;
            line-height: 1.3;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }
        .hero-desc {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(248, 244, 238, 0.85);
            max-width: 540px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: rgba(248, 244, 238, 0.7);
        }
        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .hero-trust span::before {
            content: "✓";
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: rgba(46, 125, 84, 0.6);
            font-size: 11px;
            color: #fff;
        }
        .hero-right {
            display: flex;
            justify-content: center;
        }
        .countdown-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            text-align: center;
            width: 100%;
            max-width: 340px;
            backdrop-filter: blur(8px);
        }
        .countdown-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: rgba(248, 244, 238, 0.85);
            margin-bottom: 24px;
        }
        .countdown-ring-wrap {
            position: relative;
            width: 180px;
            height: 180px;
            margin: 0 auto 20px;
        }
        .countdown-ring {
            width: 100%;
            height: 100%;
        }
        .ring-bg {
            fill: none;
            stroke: rgba(255, 255, 255, 0.12);
            stroke-width: 6;
        }
        .ring-fg {
            fill: none;
            stroke: var(--accent);
            stroke-width: 6;
            stroke-linecap: round;
            stroke-dasharray: 326.73;
            stroke-dashoffset: 0;
            transition: stroke-dashoffset 1s linear;
            transform: rotate(-90deg);
            transform-origin: 60px 60px;
        }
        .ring-center {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
        }
        .ring-label {
            display: block;
            font-size: 13px;
            color: rgba(248, 244, 238, 0.7);
            margin-bottom: 4px;
        }
        .ring-time {
            display: block;
            font-size: 28px;
            font-weight: 800;
            font-variant-numeric: tabular-nums;
            color: var(--accent-light);
            letter-spacing: 1px;
        }
        .countdown-note {
            font-size: 14px;
            color: rgba(248, 244, 238, 0.65);
            margin-bottom: 24px;
        }
        .hero-carousel {
            position: relative;
            z-index: 2;
            margin-top: 48px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
        }
        .carousel-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .carousel-icon {
            font-size: 18px;
            color: var(--accent);
        }
        .carousel-text {
            font-size: 15px;
            color: rgba(248, 244, 238, 0.85);
            transition: var(--transition);
        }
        .carousel-dots {
            display: flex;
            gap: 8px;
        }
        .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            transition: var(--transition);
        }
        .dot.active {
            background: var(--accent);
            width: 24px;
            border-radius: 4px;
        }

        /* ====== Data Section ====== */
        .data-section {
            background: var(--bg);
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .data-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 36px 24px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .data-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .data-num {
            display: block;
            font-size: 40px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 8px;
        }
        .data-label {
            font-size: 15px;
            color: var(--text-light);
        }

        /* ====== Compare Table ====== */
        .compare-section {
            background: var(--bg-deep);
        }
        .compare-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            background: #fff;
            border: 1px solid var(--border);
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 640px;
        }
        .compare-table th,
        .compare-table td {
            padding: 18px 20px;
            text-align: center;
            border-bottom: 1px solid var(--border);
            font-size: 15px;
        }
        .compare-table th {
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.5px;
        }
        .compare-table th:first-child {
            border-radius: var(--radius-lg) 0 0 0;
        }
        .compare-table th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }
        .compare-table td:first-child {
            font-weight: 600;
            color: var(--text);
            background: rgba(249, 246, 241, 0.6);
            text-align: left;
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .compare-table .col-hot {
            background: var(--accent);
        }
        .col-hot-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.25);
            padding: 2px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            margin-left: 6px;
            vertical-align: middle;
        }
        .compare-table td.col-highlight {
            background: rgba(201, 151, 95, 0.06);
            position: relative;
        }
        .compare-tip {
            font-size: 14px;
            color: var(--text-light);
            text-align: center;
            margin-top: 20px;
        }

        /* ====== Recommend ====== */
        .recommend-section {
            background: var(--bg);
        }
        .recommend-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .recommend-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .recommend-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .card-media {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .recommend-card:hover .card-media img {
            transform: scale(1.06);
        }
        .card-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            padding: 6px 14px;
            background: rgba(29, 26, 23, 0.72);
            color: #fff;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            backdrop-filter: blur(4px);
        }
        .card-rating {
            position: absolute;
            bottom: 16px;
            right: 16px;
            padding: 6px 14px;
            background: var(--accent);
            color: #1d1a17;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 800;
        }
        .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .card-reason {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 14px;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }
        .card-price {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
        }
        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-dark);
        }
        .card-link:hover {
            color: var(--primary);
        }

        /* ====== Media Section ====== */
        .media-section {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .media-section .section-head h2 {
            color: #fff;
        }
        .media-section .section-head p {
            color: rgba(248, 244, 238, 0.7);
        }
        .media-scroll {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding-bottom: 16px;
            scroll-snap-type: x mandatory;
            scrollbar-width: thin;
            scrollbar-color: rgba(201, 151, 95, 0.4) rgba(255, 255, 255, 0.1);
        }
        .media-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .media-scroll::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
        }
        .media-scroll::-webkit-scrollbar-thumb {
            background: rgba(201, 151, 95, 0.5);
            border-radius: 10px;
        }
        .media-card {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 24px;
            transition: var(--transition);
            cursor: pointer;
        }
        .media-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .media-type {
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .media-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: #fff;
        }
        .media-card p {
            font-size: 14px;
            color: rgba(248, 244, 238, 0.7);
            line-height: 1.6;
        }

        /* ====== News Section ====== */
        .news-section {
            background: var(--bg);
        }
        .news-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: block;
            padding: 20px 24px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: var(--transition);
            position: relative;
        }
        .news-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
            transform: translateX(4px);
        }
        .news-item-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .news-item-title .arrow {
            color: var(--accent);
            font-size: 14px;
            flex-shrink: 0;
        }
        .news-item-desc {
            font-size: 14px;
            color: var(--text-light);
        }
        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .sidebar-card {
            background: var(--bg-deep);
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border);
        }
        .sidebar-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4::before {
            content: "";
            width: 4px;
            height: 18px;
            background: var(--accent);
            border-radius: 4px;
        }
        .sidebar-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-light);
            padding: 8px 10px;
            border-radius: 8px;
        }
        .sidebar-list li a:hover {
            background: #fff;
            color: var(--primary);
            box-shadow: var(--shadow);
        }
        .rank-num {
            font-weight: 800;
            color: var(--accent-dark);
            font-size: 14px;
            width: 24px;
        }

        /* ====== Preview Timeline ====== */
        .preview-section {
            background: var(--bg-deep);
        }
        .timeline {
            max-width: 720px;
            margin: 0 auto;
            position: relative;
            padding-left: 40px;
        }
        .timeline::before {
            content: "";
            position: absolute;
            left: 12px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
            border-radius: 3px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 36px;
        }
        .timeline-item::before {
            content: "";
            position: absolute;
            left: -40px;
            top: 6px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: #fff;
            border: 4px solid var(--primary);
            box-shadow: 0 0 0 4px rgba(31, 94, 63, 0.15);
        }
        .timeline-item:last-child::before {
            border-color: var(--accent);
        }
        .timeline-time {
            display: inline-block;
            padding: 4px 16px;
            background: var(--primary);
            color: #fff;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .timeline-item:last-child .timeline-time {
            background: var(--accent);
            color: #1d1a17;
        }
        .timeline-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .timeline-item p {
            font-size: 14px;
            color: var(--text-light);
        }

        /* ====== CTA Form ====== */
        .cta-section {
            background: var(--primary-dark);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            width: 480px;
            height: 480px;
            border-radius: 50%;
            background: rgba(201, 151, 95, 0.08);
            top: -160px;
            right: -120px;
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            position: relative;
        }
        .cta-info h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.4;
            margin-bottom: 16px;
        }
        .cta-info p {
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .cta-features {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .cta-feature {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
        }
        .cta-feature i {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(201, 151, 95, 0.2);
            color: var(--accent);
            font-style: normal;
            font-weight: 800;
        }
        .cta-form-wrap {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 36px;
            backdrop-filter: blur(10px);
        }
        .cta-form-wrap h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 24px;
            text-align: center;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 6px;
            color: rgba(255, 255, 255, 0.8);
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 15px;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.14);
            box-shadow: 0 0 0 3px rgba(201, 151, 95, 0.2);
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .form-group select option {
            color: var(--text);
            background: #fff;
        }
        .form-submit {
            width: 100%;
            justify-content: center;
            margin-top: 8px;
        }
        .form-note {
            font-size: 13px;
            text-align: center;
            margin-top: 14px;
            color: rgba(255, 255, 255, 0.55);
        }

        /* ====== FAQ ====== */
        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-deep);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 400;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-light);
        }
        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 24px 22px;
        }

        /* ====== Security ====== */
        .security-section {
            background: var(--bg-deep);
        }
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .security-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .security-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .security-icon {
            width: 58px;
            height: 58px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: #fff;
        }
        .security-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .security-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ====== Footer ====== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(248, 244, 238, 0.75);
            padding: 64px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr;
            gap: 48px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
            display: block;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(248, 244, 238, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(248, 244, 238, 0.65);
            padding: 6px 0;
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 14px;
            color: rgba(248, 244, 238, 0.5);
        }

        /* ====== Responsive ====== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-right {
                justify-content: center;
            }
            .recommend-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
            .header-inner {
                min-height: 64px;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg);
                border-bottom: 1px solid var(--border);
                padding: 16px 24px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                box-shadow: var(--shadow-lg);
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 14px 16px;
            }
            .nav-toggle {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .stage-chip {
                margin-left: auto;
            }
            .hero {
                padding: 60px 0 48px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .compare-table th,
            .compare-table td {
                padding: 14px 12px;
                font-size: 14px;
            }
            .recommend-grid {
                grid-template-columns: 1fr;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .data-card {
                padding: 24px 16px;
            }
            .data-num {
                font-size: 32px;
            }
            .countdown-ring-wrap {
                width: 150px;
                height: 150px;
            }
            .ring-time {
                font-size: 22px;
            }
            .cta-form-wrap {
                padding: 24px 20px;
            }
            .security-grid {
                grid-template-columns: 1fr;
            }
            .timeline {
                padding-left: 32px;
            }
            .timeline-item::before {
                left: -32px;
                width: 12px;
                height: 12px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .header-actions {
                gap: 8px;
            }
            .stage-chip {
                padding: 6px 12px;
                font-size: 12px;
            }
        }

        @media (max-width: 380px) {
            .data-grid {
                grid-template-columns: 1fr;
            }
            .stage-chip {
                display: none;
            }
        }