* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
            background-color: #ffffff;
            color: #1e293b;
            line-height: 1.5;
            scroll-behavior: smooth;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid #eef2f6;
            backdrop-filter: blur(12px);
        }
        .site-header-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 16px 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 28px;
        }
        .site-nav-links,
        .site-actions {
            display: flex;
            align-items: center;
        }
        .site-nav-links {
            gap: 32px;
            font-weight: 500;
        }
        .site-nav-links a {
            min-height: 44px;
            display: inline-flex;
            align-items: center;
            color: #1e2f44;
            text-decoration: none;
            transition: color 0.2s;
            white-space: nowrap;
        }
        .site-nav-links a:hover {
            color: #2b7a4b;
        }
        .site-nav-links .admin-link {
            color: #e67e22;
        }
        .site-actions {
            gap: 18px;
        }
        .site-actions .btn-buyer,
        .site-actions .btn-seller {
            min-height: 52px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            text-decoration: none;
            white-space: nowrap;
        }
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            flex-wrap: wrap;
            border-bottom: 1px solid #eef2f6;
        }
        .logo-link {
            display: inline-flex;
            align-items: center;
            min-height: 56px;
            text-decoration: none;
        }
        .brand-logo {
            width: 286px;
            height: 56px;
            display: block;
            object-fit: contain;
            object-position: center;
            background: transparent;
        }
        .logo-area h1 {
            font-size: 28px;
            font-weight: 700;
            background: linear-gradient(135deg, #0f2b3d 0%, #1b4f6e 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.3px;
        }
        .domain-highlight {
            display: inline-block;
            background: #1f5e3a;
            color: white !important;
            padding: 4px 12px;
            border-radius: 40px;
            font-size: 16px;
            font-weight: 600;
            margin-left: 8px;
            letter-spacing: 0.5px;
        }
        .nav-links {
            display: flex;
            gap: 36px;
            font-weight: 500;
        }
        .nav-links a {
            text-decoration: none;
            color: #1e2f44;
            transition: color 0.2s;
            font-size: 16px;
        }
        .nav-links a:hover {
            color: #2b7a4b;
        }
        .dual-buttons {
            display: flex;
            gap: 20px;
        }
        .btn-buyer {
            background: linear-gradient(135deg, #1f5e3a 0%, #0f4429 100%);
            color: white;
            border: none;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 4px 12px rgba(31,94,58,0.3);
        }
        .btn-buyer:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(31,94,58,0.4);
        }
        .btn-seller {
            background: linear-gradient(135deg, #2c3e66 0%, #1a2a4a 100%);
            color: white;
            border: none;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        }
        .btn-seller:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.2);
        }
        .hero {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 60px 0 48px;
            gap: 40px;
        }
        .hero-left {
            flex: 1.2;
        }
        .hero-left .slogan {
            font-size: 48px;
            font-weight: 700;
            line-height: 1.2;
            color: #0b2b3b;
            margin-bottom: 24px;
        }
        .highlight {
            color: #2b7a4b;
            border-bottom: 3px solid #ffcd4a;
            display: inline-block;
        }
        .hero-desc {
            font-size: 18px;
            color: #475569;
            margin-bottom: 20px;
            max-width: 90%;
        }
        .scrap-badge {
            background: #fff4e6;
            padding: 10px 20px;
            border-radius: 60px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
            font-weight: 600;
            color: #e67e22;
            border: 1px solid #ffe0b5;
        }
        .location-badge {
            background: #eaf7ef;
            padding: 10px 20px;
            border-radius: 60px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
            font-weight: 600;
            color: #1f5e3a;
        }
        .feature-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 20px;
        }
        .feature-chip {
            background: #f8fafc;
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 10px;
            color: #1f3a4b;
            border: 1px solid #e2e8f0;
        }
        .feature-chip i {
            color: #2b7a4b;
            font-size: 16px;
        }
        .hero-right {
            flex: 0.9;
            background: linear-gradient(145deg, #f4f9fe, #ffffff);
            padding: 32px 28px;
            border-radius: 48px;
            box-shadow: 0 20px 35px -12px rgba(0,0,0,0.08);
            border: 1px solid #eef2f9;
        }
        .stat-item {
            display: flex;
            justify-content: space-between;
            border-bottom: 1px dashed #e2edf2;
            padding: 16px 0;
        }
        .stat-label {
            font-weight: 600;
            color: #2d3a4b;
        }
        .stat-number {
            font-weight: 800;
            color: #1f5e3a;
            font-size: 22px;
        }
        .features-showcase {
            padding: 70px 0 50px;
            background-color: #fefefe;
        }
        .section-title {
            text-align: center;
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .section-sub {
            text-align: center;
            color: #5c6f87;
            max-width: 680px;
            margin: 0 auto 48px;
        }
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 32px;
        }
        .card-feature {
            background: #fff;
            padding: 28px 24px;
            border-radius: 28px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.02);
            border: 1px solid #edf2f7;
            transition: all 0.25s;
        }
        .card-feature:hover {
            transform: translateY(-4px);
            border-color: #cbdde9;
        }
        .card-icon {
            background: #eaf7ef;
            width: 56px;
            height: 56px;
            border-radius: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        .card-icon i {
            font-size: 28px;
            color: #1f5e3a;
        }
        .card-feature h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .platform-mode {
            background: linear-gradient(135deg, #eef7f2 0%, #ffffff 100%);
            padding: 60px 0;
            border-top: 1px solid #eef2f6;
            border-bottom: 1px solid #eef2f6;
        }
        .mode-container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 60px;
        }
        .mode-left {
            flex: 1.2;
        }
        .mode-left h2 {
            font-size: 36px;
            font-weight: 700;
            color: #0b2b3b;
            margin-bottom: 20px;
        }
        .mode-left p {
            font-size: 18px;
            color: #475569;
            line-height: 1.6;
            margin-bottom: 24px;
        }
        .mode-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 24px;
        }
        .mode-badge {
            background: white;
            padding: 12px 20px;
            border-radius: 60px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            color: #1f5e3a;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
            border: 1px solid #cfe6db;
        }
        .mode-right {
            flex: 0.8;
            background: white;
            border-radius: 32px;
            padding: 32px;
            box-shadow: 0 20px 35px -12px rgba(0,0,0,0.1);
            border: 1px solid #eef2f9;
        }
        .mode-right h4 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
            color: #1f5e3a;
        }
        .mode-step {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
        }
        .mode-step-num {
            width: 40px;
            height: 40px;
            background: #1f5e3a;
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
        }
        .mode-step-text {
            flex: 1;
            font-size: 15px;
            color: #2d3a4b;
        }
        .mode-note {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #e2edf2;
            font-size: 14px;
            color: #5c6f87;
            text-align: center;
        }
        .categories-section {
            background: #f9fbfd;
            padding: 60px 0;
            border-top: 1px solid #eef2f6;
            border-bottom: 1px solid #eef2f6;
        }
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 24px;
            margin-top: 40px;
        }
        .category-item {
            background: white;
            text-align: center;
            min-height: 140px;
            padding: 28px 16px;
            border-radius: 24px;
            transition: all 0.2s;
            border: 1px solid #eef2f8;
            box-shadow: 0 2px 8px rgba(0,0,0,0.02);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 16px;
        }
        .category-item:hover {
            transform: translateY(-4px);
            border-color: #cbdde9;
            box-shadow: 0 12px 20px rgba(0,0,0,0.05);
        }
        .category-item i {
            font-size: 40px;
            color: #1f5e3a;
            margin-bottom: 16px;
            display: block;
        }
        .category-item .icon {
            width: 48px;
            height: 48px;
            color: #1f5e3a;
            stroke-width: 2.4;
        }
        .category-item span {
            font-size: 18px;
            font-weight: 600;
            color: #1e2f44;
        }
        /* 其他服务区域 */
        .other-services {
            padding: 60px 0;
            background: #ffffff;
        }
        .services-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 32px;
            margin-top: 40px;
        }
        .service-btn {
            min-width: 180px;
            padding: 16px 32px;
            background: linear-gradient(135deg, #1f5e3a 0%, #0f4429 100%);
            color: white;
            border: none;
            border-radius: 60px;
            font-size: 18px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 4px 12px rgba(31,94,58,0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
        }
        .service-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(31,94,58,0.3);
        }
        .process-section {
            background: #f9fbfd;
            padding: 70px 0;
        }
        .double-process {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            margin-top: 30px;
        }
        .process-card {
            flex: 1;
            background: white;
            border-radius: 32px;
            padding: 32px 28px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.02);
            border: 1px solid #eef2f8;
        }
        .process-title {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .step-list {
            list-style: none;
        }
        .step-list li {
            display: flex;
            gap: 16px;
            margin-bottom: 24px;
            align-items: flex-start;
        }
        .step-num {
            background: #1f5e3a10;
            width: 32px;
            height: 32px;
            border-radius: 60px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: #1f5e3a;
            border: 1px solid #cfe6db;
        }
        .three-col {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            padding: 70px 0;
            border-bottom: 1px solid #eef2f6;
        }
        .three-col > div {
            flex: 1;
            min-width: 250px;
        }
        .three-col h3 {
            font-size: 26px;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .founder-video-block {
            width: 100%;
        }
        .founder-video {
            width: 100%;
            aspect-ratio: 16 / 9;
            display: block;
            border-radius: 16px;
            background: #1a2a3a;
            object-fit: cover;
        }
        .contact-info {
            margin-top: 28px;
            background: #f8fafc;
            padding: 28px;
            border-radius: 28px;
            margin-bottom: 40px;
        }
        .btn-outline {
            border: 1px solid #cbd5e1;
            background: white;
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 500;
            margin-top: 16px;
            cursor: pointer;
        }
        .trust-badge {
            background: white;
            padding: 32px 0;
            text-align: center;
            border-top: 1px solid #eef2f6;
            border-bottom: 1px solid #eef2f6;
            margin: 20px 0;
        }
        .badge-list {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 48px;
            margin-top: 24px;
            align-items: center;
        }
        .footer {
            background-color: #0f1a24;
            color: #cddfe7;
            padding: 48px 0 32px;
            margin-top: 0;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 32px;
            max-width: 1280px;
            margin: 0 auto;
        }
        .footer-col h4 {
            color: white;
            margin-bottom: 16px;
            font-size: 16px;
        }
        .footer-col p {
            margin-bottom: 8px;
        }
        .footer-col a {
            color: #cddfe7;
            text-decoration: none;
            font-size: 13px;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: #1f5e3a;
        }
        .footer-copyright {
            text-align: center;
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid #2d3a4b;
            font-size: 13px;
            color: #cddfe7;
        }
        .footer-icp {
            margin-top: 8px;
            color: inherit;
        }
        .footer-police {
            margin-top: 8px;
        }
        .police-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            color: inherit;
            text-decoration: none;
        }
        .police-link:hover {
            color: #ffffff;
        }
        .police-badge-icon {
            width: 16px;
            height: 16px;
            flex: 0 0 16px;
            object-fit: contain;
        }
        .footer-copyright a {
            color: inherit;
        }
        @media (max-width: 900px) {
            .site-header-inner {
                flex-direction: column;
                padding: 14px 20px;
                gap: 14px;
            }
            .site-nav-links {
                justify-content: center;
                flex-wrap: wrap;
                gap: 10px 22px;
            }
            .site-actions {
                justify-content: center;
                flex-wrap: wrap;
            }
            .navbar { flex-direction: column; gap: 16px; }
            .hero-left .slogan { font-size: 34px; }
            .container { padding: 0 20px; }
            .dual-buttons { margin-top: 8px; }
            .categories-grid { grid-template-columns: repeat(2, 1fr); }
            .mode-container { flex-direction: column; }
            .footer-inner { flex-direction: column; gap: 24px; }
            .services-grid { flex-direction: column; align-items: center; }
        }
        @media (max-width: 520px) {
            .site-header-inner {
                padding: 12px 16px;
            }
            .site-nav-links {
                gap: 8px 14px;
            }
            .site-actions .btn-buyer,
            .site-actions .btn-seller {
                flex: 1 1 150px;
            }
            .brand-logo {
                width: min(286px, 86vw);
                height: auto;
            }
        }
    
        /* Local icon fallback: replaces Font Awesome CDN with visible local symbols. */
        .fas, .fab {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 1.35em;
            min-width: 1.35em;
            text-align: center;
            font-style: normal;
            font-weight: 700;
            line-height: 1;
            vertical-align: -0.08em;
        }
        .fa-shopping-cart::before { content: "🛒"; }
        .fa-store::before { content: "🏭"; }
        .fa-paper-plane::before { content: "✈"; }
        .fa-map-marker-alt::before { content: "📍"; }
        .fa-bolt::before { content: "⚡"; }
        .fa-clock::before { content: "⏱"; }
        .fa-headset::before { content: "🎧"; }
        .fa-chart-line::before { content: "📈"; }
        .fa-gavel::before { content: "⚖"; }
        .fa-clipboard-check::before { content: "☑"; }
        .fa-calendar-check::before { content: "📅"; }
        .fa-medal::before { content: "🏅"; }
        .fa-rocket::before { content: "🚀"; }
        .fa-hand-holding-usd::before { content: "💰"; }
        .fa-microscope::before { content: "🔬"; }
        .fa-file-alt::before { content: "📄"; }
        .fa-tasks::before { content: "📋"; }
        .fa-comments::before { content: "💬"; }
        .fa-cogs::before { content: "⚙"; }
        .fa-industry::before { content: "🏭"; }
        .fa-cube::before { content: "◆"; }
        .fa-microchip::before { content: "▣"; }
        .fa-border-all::before { content: "▦"; }
        .fa-print::before { content: "🖨"; }
        .fa-circle::before { content: "●"; }
        .fa-user-check::before { content: "✓"; }
        .fa-building::before { content: "▥"; }
        .fa-video::before { content: "▶"; }
        .fa-play-circle::before { content: "▶"; }
        .fa-upload::before { content: "⬆"; }
        .fa-graduation-cap::before { content: "🎓"; }
        .fa-phone-alt::before { content: "☎"; }
        .fa-envelope::before { content: "✉"; }
        .fa-weixin::before { content: "💬"; }
        .fa-comment-dots::before { content: "💬"; }
        .fa-hand-holding-heart::before { content: "♡"; }
        .fa-chart-simple::before { content: "▤"; }
        .fa-file-signature::before { content: "✎"; }
        .fa-check-circle::before { content: "✓"; }

        /* Motion layer */
        @keyframes tjFadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        @keyframes tjFloat {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }
        @keyframes tjPulse {
            0%, 100% {
                box-shadow: 0 0 0 0 rgba(31, 94, 58, 0.22);
            }
            50% {
                box-shadow: 0 0 0 9px rgba(31, 94, 58, 0);
            }
        }
        @keyframes tjSweep {
            from {
                transform: translateX(-120%) skewX(-18deg);
            }
            to {
                transform: translateX(220%) skewX(-18deg);
            }
        }
        .logo-area,
        .nav-links,
        .dual-buttons,
        .hero-left,
        .hero-right {
            animation: tjFadeUp 0.72s ease both;
        }
        .nav-links { animation-delay: 0.08s; }
        .dual-buttons { animation-delay: 0.16s; }
        .hero-left { animation-delay: 0.22s; }
        .hero-right {
            animation: tjFadeUp 0.72s ease 0.34s both, tjFloat 5.6s ease-in-out 1.3s infinite;
        }
        .feature-chip,
        .card-feature,
        .category-item,
        .service-btn,
        .process-card,
        .mode-right {
            transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease, background-color 0.24s ease;
        }
        .feature-chip:hover,
        .card-feature:hover,
        .category-item:hover,
        .service-btn:hover,
        .process-card:hover,
        .mode-right:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 28px rgba(15, 43, 61, 0.12);
        }
        .btn-buyer,
        .btn-seller,
        .btn-outline,
        .upload-btn,
        .service-btn {
            position: relative;
            overflow: hidden;
        }
        .btn-buyer::after,
        .btn-seller::after,
        .btn-outline::after,
        .upload-btn::after,
        .service-btn::after {
            content: "";
            position: absolute;
            inset: -20% auto -20% 0;
            width: 42%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.42), transparent);
            transform: translateX(-130%) skewX(-18deg);
            pointer-events: none;
        }
        .btn-buyer:hover::after,
        .btn-seller:hover::after,
        .btn-outline:hover::after,
        .upload-btn:hover::after,
        .service-btn:hover::after {
            animation: tjSweep 0.72s ease;
        }
        .location-badge,
        .scrap-badge,
        .mode-note {
            animation: tjPulse 3.2s ease-in-out infinite;
        }
        .tj-reveal {
            opacity: 0;
            transform: translateY(26px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .tj-reveal.is-visible {
            opacity: 1;
            transform: translateY(0);
        }
        .tj-reveal:nth-child(2) { transition-delay: 0.06s; }
        .tj-reveal:nth-child(3) { transition-delay: 0.12s; }
        .tj-reveal:nth-child(4) { transition-delay: 0.18s; }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                scroll-behavior: auto !important;
                transition-duration: 0.01ms !important;
            }
        }

        /* UI/UX Pro Max polish layer: same palette, better accessibility and hierarchy. */
        :root {
            --tj-primary: #1f5e3a;
            --tj-primary-deep: #0f4429;
            --tj-ink: #102333;
            --tj-muted: #52677d;
            --tj-line: #dfe8ef;
            --tj-surface: #ffffff;
            --tj-soft: #f6faf8;
            --tj-focus: #ffcd4a;
        }
        html {
            scroll-padding-top: 24px;
        }
        body {
            overflow-x: hidden;
            text-rendering: optimizeLegibility;
            -webkit-font-smoothing: antialiased;
        }
        .skip-link {
            position: fixed;
            top: 12px;
            left: 12px;
            z-index: 9999;
            transform: translateY(-140%);
            padding: 10px 14px;
            border-radius: 8px;
            background: var(--tj-primary);
            color: #fff;
            font-weight: 700;
            text-decoration: none;
            box-shadow: 0 10px 24px rgba(15, 43, 61, 0.18);
            transition: transform 0.18s ease;
        }
        .skip-link:focus {
            transform: translateY(0);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        video:focus-visible {
            outline: 3px solid var(--tj-focus);
            outline-offset: 3px;
        }
        .nav-links a,
        .btn-buyer,
        .btn-seller,
        .btn-outline,
        .upload-btn,
        .service-btn {
            min-height: 44px;
            touch-action: manipulation;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            border-radius: 8px;
            padding: 6px 2px;
        }
        .icon {
            width: 1.22em;
            height: 1.22em;
            flex: 0 0 auto;
            vertical-align: -0.18em;
            fill: none;
            stroke: currentColor;
        }
        .card-icon .icon {
            width: 1.75em;
            height: 1.75em;
        }
        .logo-area h1 {
            letter-spacing: 0;
        }
        .hero-left .slogan,
        .section-title,
        .mode-left h2 {
            text-wrap: balance;
        }
        .hero-desc,
        .section-sub,
        .card-feature p,
        .mode-left p,
        .three-col p {
            color: var(--tj-muted);
        }
        .hero-right,
        .card-feature,
        .process-card,
        .mode-right,
        .contact-info {
            border-color: var(--tj-line);
            box-shadow: 0 14px 34px rgba(16, 35, 51, 0.08);
        }
        .card-feature,
        .category-item,
        .process-card,
        .mode-right {
            will-change: transform;
        }
        .card-feature:hover,
        .category-item:hover,
        .process-card:hover,
        .mode-right:hover {
            border-color: rgba(31, 94, 58, 0.22);
        }
        .stat-number {
            font-variant-numeric: tabular-nums;
        }
        #founderVideo {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .footer a,
        .contact-info a {
            text-underline-offset: 3px;
        }
        @media (max-width: 900px) {
            .navbar {
                align-items: stretch;
            }
            .nav-links {
                justify-content: center;
                row-gap: 10px;
            }
            .nav-links a {
                min-height: 40px;
            }
            .dual-buttons {
                justify-content: center;
                flex-wrap: wrap;
            }
            .btn-buyer,
            .btn-seller {
                flex: 1 1 180px;
            }
            .hero {
                padding-top: 38px;
            }
            .hero-desc {
                max-width: 100%;
            }
            .hero-right {
                border-radius: 28px;
            }
            .feature-chip,
            .mode-badge {
                min-height: 38px;
            }
            .services-grid {
                width: 100%;
            }
            .service-btn {
                width: min(100%, 360px);
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .logo-area h1 {
                font-size: 24px;
            }
            .domain-highlight {
                margin-left: 4px;
                font-size: 13px;
                padding: 3px 8px;
            }
            .hero-left .slogan {
                font-size: 31px;
            }
            .section-title {
                font-size: 26px;
            }
            .scrap-badge,
            .location-badge {
                align-items: flex-start;
                border-radius: 18px;
            }
            .feature-grid {
                gap: 10px;
            }
            .feature-chip {
                width: 100%;
                justify-content: flex-start;
            }
            .categories-grid {
                gap: 12px;
            }
            .category-item {
                min-height: 92px;
                padding: 16px 10px;
            }
            .contact-info {
                border-radius: 28px;
                padding: 26px 20px;
            }
        }

        /* Mobile layout hardening for every portal page that uses the marketing sections. */
        img,
        svg,
        video,
        canvas {
            max-width: 100%;
        }
        .hero-left,
        .hero-right,
        .hero > *,
        .mode-left,
        .mode-right,
        .mode-container > *,
        .double-process > *,
        .process-card,
        .three-col > div,
        .card-feature,
        .category-item,
        .footer-col {
            min-width: 0;
        }
        .scrap-badge,
        .location-badge,
        .feature-chip,
        .mode-badge,
        .mode-step-text,
        .stat-label,
        .stat-number,
        .process-title,
        .footer-col,
        .contact-info p {
            overflow-wrap: anywhere;
        }
        .hero-left .slogan,
        .section-title,
        .mode-left h2,
        .process-title,
        .three-col h3 {
            overflow-wrap: anywhere;
            word-break: break-word;
            line-break: anywhere;
        }
        @media (max-width: 768px) {
            html {
                scroll-padding-top: 170px;
            }
            .site-header {
                position: relative;
            }
            .site-header-inner {
                align-items: stretch;
                gap: 12px;
            }
            .logo-link {
                justify-content: flex-start;
                min-height: 48px;
            }
            .site-nav-links {
                width: 100%;
                display: grid;
                grid-template-columns: repeat(3, minmax(0, 1fr));
                gap: 8px;
            }
            .site-nav-links a {
                min-height: 38px;
                justify-content: center;
                padding: 6px 4px;
                border-radius: 8px;
                background: #f7faf8;
                border: 1px solid #e7eef0;
                font-size: 14px;
                white-space: normal;
                text-align: center;
                line-height: 1.25;
            }
            .site-actions {
                width: 100%;
                display: grid;
                grid-template-columns: repeat(2, minmax(0, 1fr));
                gap: 10px;
            }
            .site-actions .btn-buyer,
            .site-actions .btn-seller,
            .btn-buyer,
            .btn-seller {
                width: 100%;
                min-width: 0;
                min-height: 46px;
                padding: 10px 14px;
                border-radius: 8px;
                font-size: 15px;
                white-space: normal;
                overflow-wrap: anywhere;
                line-height: 1.25;
            }
            .hero {
                display: grid;
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 34px 0 32px;
            }
            .hero-left {
                width: 100%;
            }
            .hero-left .slogan {
                font-size: 30px;
                line-height: 1.25;
                margin-bottom: 16px;
            }
            .hero-desc {
                font-size: 16px;
                line-height: 1.7;
                max-width: none;
                margin-bottom: 16px;
            }
            .scrap-badge,
            .location-badge {
                width: 100%;
                margin-bottom: 12px;
                padding: 10px 12px;
                border-radius: 8px;
                font-size: 14px;
                line-height: 1.45;
            }
            .feature-grid,
            .mode-badges {
                display: grid;
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .feature-chip,
            .mode-badge {
                width: 100%;
                min-height: 40px;
                border-radius: 8px;
                justify-content: flex-start;
                padding: 9px 12px;
            }
            .hero-right,
            .mode-right,
            .process-card,
            .card-feature,
            .contact-info {
                border-radius: 8px;
                padding: 22px 18px;
            }
            .stat-item {
                align-items: flex-start;
                gap: 12px;
            }
            .stat-number {
                flex: 0 0 auto;
                font-size: 20px;
                text-align: right;
            }
            .features-showcase,
            .platform-mode,
            .categories-section,
            .other-services,
            .process-section {
                padding: 42px 0;
            }
            .section-title {
                font-size: 25px;
                line-height: 1.3;
                margin-bottom: 12px;
            }
            .section-sub {
                margin-bottom: 28px;
                line-height: 1.7;
            }
            .cards-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .card-feature h3 {
                font-size: 19px;
            }
            .categories-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
                gap: 12px;
                margin-top: 26px;
            }
            .category-item {
                min-height: 112px;
                border-radius: 8px;
                padding: 18px 10px;
            }
            .category-item .icon {
                width: 36px;
                height: 36px;
            }
            .category-item span {
                font-size: 15px;
            }
            .mode-container,
            .double-process,
            .three-col {
                display: grid;
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .mode-left h2 {
                font-size: 27px;
                line-height: 1.3;
            }
            .mode-left p {
                font-size: 16px;
            }
            .mode-step {
                align-items: flex-start;
                gap: 12px;
            }
            .mode-step-num {
                width: 34px;
                height: 34px;
                font-size: 16px;
                flex: 0 0 auto;
            }
            .process-title,
            .three-col h3 {
                align-items: flex-start;
                font-size: 21px;
                line-height: 1.35;
            }
            .step-list li {
                gap: 12px;
                margin-bottom: 18px;
            }
            .step-num {
                width: 30px;
                height: 30px;
                flex: 0 0 auto;
            }
            .services-grid {
                gap: 12px;
                margin-top: 26px;
            }
            .service-btn {
                width: 100%;
                max-width: none;
                min-width: 0;
                border-radius: 8px;
                padding: 13px 16px;
                font-size: 16px;
            }
            .trust-badge {
                padding: 28px 0;
            }
            .badge-list {
                display: grid;
                grid-template-columns: 1fr;
                gap: 14px;
                text-align: left;
            }
            .footer {
                margin-top: 0;
                padding: 38px 0 26px;
            }
            .footer-inner {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px 18px;
            }
            .footer-copyright {
                margin-top: 32px;
                line-height: 1.7;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .site-nav-links {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }
            .site-actions {
                grid-template-columns: 1fr;
            }
            .brand-logo {
                width: min(248px, 82vw);
            }
            .hero-left .slogan {
                font-size: 27px;
            }
            .section-title {
                font-size: 23px;
            }
            .categories-grid,
            .footer-inner {
                grid-template-columns: 1fr;
            }
            .stat-item {
                display: grid;
                grid-template-columns: 1fr;
                gap: 4px;
            }
            .stat-number {
                text-align: left;
            }
        }

        /* Mobile content-first layout pass. */
        @media (max-width: 768px) {
            .site-header {
                position: sticky;
            }
            .site-header-inner {
                display: grid;
                grid-template-columns: 1fr;
                gap: 10px;
                padding: 10px 14px;
            }
            .logo-link {
                order: 1;
                min-height: 42px;
                justify-content: flex-start;
            }
            .brand-logo {
                width: min(224px, 72vw);
                height: auto;
            }
            .site-actions {
                order: 2;
                grid-template-columns: repeat(2, minmax(0, 1fr));
                gap: 8px;
            }
            .site-actions .btn-buyer,
            .site-actions .btn-seller {
                min-height: 42px;
                padding: 9px 10px;
                font-size: 14px;
            }
            .site-nav-links {
                order: 3;
                display: flex;
                flex-wrap: nowrap;
                justify-content: flex-start;
                overflow-x: auto;
                overscroll-behavior-inline: contain;
                scrollbar-width: none;
                padding: 0 0 2px;
                gap: 8px;
                -webkit-overflow-scrolling: touch;
            }
            .site-nav-links::-webkit-scrollbar {
                display: none;
            }
            .site-nav-links a {
                flex: 0 0 auto;
                min-width: auto;
                min-height: 36px;
                padding: 7px 12px;
                background: #f8fbf9;
                line-height: 1.2;
            }
            .hero {
                gap: 18px;
                padding: 24px 0 28px;
            }
            .scrap-badge,
            .location-badge {
                display: flex;
                width: auto;
                border-radius: 8px;
                margin-bottom: 10px;
            }
            .hero-left .slogan {
                font-size: 28px;
                margin-bottom: 12px;
            }
            .hero-desc {
                font-size: 15px;
                line-height: 1.65;
            }
            .feature-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
                gap: 8px;
            }
            .feature-chip {
                min-height: 44px;
                padding: 9px 10px;
                font-size: 13px;
                align-items: center;
            }
            .hero-right {
                display: grid;
                grid-template-columns: repeat(2, minmax(0, 1fr));
                gap: 10px;
                padding: 14px;
            }
            .hero-right .stat-item {
                display: block;
                min-height: 92px;
                padding: 14px 12px;
                border: 1px solid #e4edf2;
                border-radius: 8px;
                background: #fff;
            }
            .hero-right .stat-label {
                display: block;
                margin-bottom: 10px;
                font-size: 13px;
                line-height: 1.35;
            }
            .hero-right .stat-number {
                display: block;
                font-size: 22px;
                text-align: left;
            }
            .hero-right > div[style] {
                grid-column: 1 / -1;
                margin-top: 0 !important;
                border-radius: 8px !important;
            }
            .features-showcase,
            .platform-mode,
            .categories-section,
            .other-services,
            .process-section {
                padding: 34px 0;
            }
            .section-title {
                text-align: left;
                font-size: 24px;
            }
            .section-sub {
                text-align: left;
                margin-left: 0;
                margin-right: 0;
                margin-bottom: 22px;
            }
            .card-feature {
                display: grid;
                grid-template-columns: 46px 1fr;
                column-gap: 14px;
                align-items: start;
                padding: 18px 16px;
            }
            .card-icon {
                width: 44px;
                height: 44px;
                margin-bottom: 0;
            }
            .card-feature h3 {
                margin-bottom: 6px;
            }
            .card-feature p {
                grid-column: 2;
                line-height: 1.65;
            }
            .mode-badges {
                grid-template-columns: repeat(2, minmax(0, 1fr));
                gap: 8px;
            }
            .mode-badge {
                min-height: 42px;
                padding: 9px 10px;
                font-size: 13px;
            }
            .mode-right,
            .process-card {
                padding: 18px 16px;
            }
            .categories-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }
            .category-item {
                min-height: 104px;
            }
            .double-process {
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .site-actions {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }
            .site-actions .btn-buyer,
            .site-actions .btn-seller {
                font-size: 13px;
            }
            .site-nav-links {
                grid-template-columns: none;
            }
            .feature-grid,
            .mode-badges,
            .hero-right,
            .categories-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }
            .cards-grid,
            .footer-inner {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 360px) {
            .feature-grid,
            .mode-badges,
            .hero-right,
            .categories-grid,
            .site-actions {
                grid-template-columns: 1fr;
            }
        }