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

        :root {
            --green-deep: #3A5C4C;
            --green-mid: #5C8A78;
            --green-soft: #7BA890;
            --copper: #C4885B;
            --copper-light: #D9A878;
            --copper-pale: #E8CFB0;
            --bg-warm: #FCFAF5;
            --bg-card: #FFFEFA;
            --bg-cream: #F7F3EC;
            --border-soft: #ECE2D2;
            --border-hover: #D4BFA0;
            --text-dark: #2D3A3A;
            --text-mid: #5A6A5E;
            --text-light: #7E8D7A;
            --icon-bg: #F2EBE0;
            --badge-bg: #E6EFE2;
            --badge-text: #4E7A5C;
            --tag-rec-bg: #E6EFE2;
            --tag-rec-text: #4E7A5C;
            --tag-pro-bg: #F5EDE2;
            --tag-pro-text: #B08055;
            --footer-bg: #E8DFD2;
            --footer-text: #6A5C4D;
            --footer-border: #D9CAB4;
        }

        body {
            font-family: 'Inter', system-ui, -apple-system, 'BlinkMacSystemFont', 'Segoe UI', Roboto, Helvetica, sans-serif;
            background: var(--bg-warm);
            color: var(--text-dark);
            line-height: 1.55;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeSpeed;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .skip-link {
            position: absolute;
            top: -100px;
            left: 16px;
            background: var(--green-deep);
            color: #fff;
            padding: 8px 16px;
            border-radius: 6px;
            z-index: 200;
            text-decoration: none;
            font-weight: 600;
            transition: top 0.3s;
        }
        .skip-link:focus {
            top: 10px;
        }

        /* Header */
        .header {
            background: rgba(252, 250, 245, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid var(--border-soft);
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 16px 0;
            gap: 18px;
        }
        .logo {
            font-size: 1.85rem;
            font-weight: 750;
            background: linear-gradient(130deg, var(--green-mid), var(--copper));
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            letter-spacing: -0.4px;
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            gap: 30px;
            align-items: center;
            flex-wrap: wrap;
            list-style: none;
        }
        .nav-links a {
            text-decoration: none;
            font-weight: 530;
            color: var(--text-mid);
            transition: color 0.2s;
            font-size: 0.98rem;
            position: relative;
            padding: 4px 0;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--copper);
            transition: width 0.25s;
            border-radius: 2px;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--copper);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-badge {
            display: inline-block;
            background: var(--badge-bg);
            color: var(--badge-text);
            font-size: 0.7rem;
            padding: 2px 9px;
            border-radius: 14px;
            margin-left: 4px;
            font-weight: 600;
            vertical-align: middle;
        }

        /* Hero */
        .hero {
            padding: 64px 0 72px;
            background: var(--bg-warm);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 0.85fr 1.15fr;
            gap: 44px;
            align-items: center;
        }
        .hero-visual {
            order: 1;
        }
        .hero-content {
            order: 2;
        }
        .hero-visual-card {
            background: var(--bg-card);
            border-radius: 48px;
            padding: 24px 18px;
            text-align: center;
            box-shadow: 0 20px 40px -14px rgba(0, 0, 0, 0.05);
            border: 1px solid var(--border-soft);
            position: relative;
            overflow: hidden;
        }
        .hero-visual-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 60% 30%, rgba(92, 138, 120, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-visual-icon {
            font-size: 3.2rem;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .hero-visual-label {
            font-size: 0.85rem;
            color: var(--text-light);
            font-weight: 500;
            position: relative;
            z-index: 1;
            letter-spacing: 0.3px;
        }
        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.18;
            color: var(--green-deep);
            margin-bottom: 16px;
            letter-spacing: -0.8px;
        }
        .hero-content .accent {
            background: linear-gradient(130deg, var(--copper), var(--copper-light));
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
        }
        .hero-content .tagline {
            font-size: 1.15rem;
            color: var(--text-mid);
            margin-bottom: 32px;
            max-width: 88%;
            font-weight: 450;
            line-height: 1.6;
        }
        .btn-group {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        .btn-primary {
            background: var(--green-mid);
            color: #fff;
            padding: 13px 30px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 620;
            transition: all 0.25s;
            box-shadow: 0 6px 16px rgba(92, 138, 120, 0.22);
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 1rem;
            letter-spacing: 0.2px;
        }
        .btn-primary:hover {
            background: #4E7A68;
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(92, 138, 120, 0.28);
        }
        .btn-secondary {
            background: transparent;
            color: var(--copper);
            padding: 13px 30px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 620;
            border: 1.5px solid var(--copper-pale);
            transition: all 0.25s;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .btn-secondary:hover {
            background: #FFFBF6;
            border-color: var(--copper);
            transform: translateY(-2px);
        }
        .stats-row {
            display: flex;
            gap: 28px;
            margin-top: 38px;
            flex-wrap: wrap;
        }
        .stat-item {
            background: var(--bg-card);
            padding: 10px 18px;
            border-radius: 40px;
            border: 1px solid #E8DDCA;
            font-weight: 520;
            color: var(--green-mid);
            font-size: 0.9rem;
            white-space: nowrap;
        }
        .stat-item strong {
            color: var(--green-deep);
            font-weight: 700;
        }

        /* 三大入口 */
        .gateways-section {
            padding: 64px 0;
            background: #fff;
        }
        .section-title {
            text-align: center;
            font-size: 2.1rem;
            font-weight: 720;
            margin-bottom: 44px;
            color: var(--green-deep);
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-light);
            margin-top: -30px;
            margin-bottom: 44px;
            font-size: 0.95rem;
        }
        .gateways-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }
        .gateway-card {
            background: var(--bg-card);
            border-radius: 26px;
            padding: 34px 26px;
            border: 1px solid var(--border-soft);
            text-align: center;
            transition: all 0.3s;
            text-decoration: none;
            color: inherit;
            display: block;
            position: relative;
            overflow: hidden;
        }
        .gateway-card::before {
            content: '';
            position: absolute;
            top: -36px;
            right: -36px;
            width: 90px;
            height: 90px;
            border-radius: 50%;
            background: rgba(92, 138, 120, 0.05);
            transition: 0.4s;
        }
        .gateway-card:hover::before {
            width: 150px;
            height: 150px;
            top: -55px;
            right: -55px;
            background: rgba(196, 136, 91, 0.09);
        }
        .gateway-card:hover {
            transform: translateY(-5px);
            border-color: var(--border-hover);
            box-shadow: 0 16px 34px -12px rgba(0, 0, 0, 0.07);
        }
        .gateway-icon-wrap {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.7rem;
            background: var(--icon-bg);
            position: relative;
            z-index: 1;
        }
        .gateway-card h3 {
            font-size: 1.25rem;
            color: var(--green-deep);
            margin-bottom: 7px;
            position: relative;
            z-index: 1;
            font-weight: 680;
        }
        .gateway-card .gateway-sub {
            font-size: 0.88rem;
            color: var(--text-light);
            position: relative;
            z-index: 1;
            line-height: 1.5;
        }
        .gateway-badge {
            display: inline-block;
            background: var(--badge-bg);
            color: var(--badge-text);
            font-size: 0.76rem;
            padding: 4px 13px;
            border-radius: 28px;
            margin-top: 12px;
            font-weight: 520;
            position: relative;
            z-index: 1;
        }

        /* 功能特点 */
        .features {
            padding: 76px 0;
            background: var(--bg-cream);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            padding: 28px 22px;
            border-radius: 28px;
            transition: all 0.25s;
            border: 1px solid var(--border-soft);
            text-align: left;
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
            background: #FFFEFC;
        }
        .feature-icon {
            background: var(--icon-bg);
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 20px;
            color: var(--copper);
            flex-shrink: 0;
            font-size: 1.3rem;
        }
        .feature-text h3 {
            font-size: 1.2rem;
            margin-bottom: 6px;
            color: var(--green-deep);
            font-weight: 650;
        }
        .feature-text p {
            color: var(--text-light);
            font-size: 0.88rem;
            line-height: 1.5;
        }

        /* 对比区 */
        .compare-section {
            padding: 72px 0;
            background: var(--bg-warm);
        }
        .compare-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            margin-top: 16px;
            border-radius: 22px;
            border: 1px solid var(--border-soft);
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 640px;
            background: var(--bg-card);
            border-radius: 22px;
            overflow: hidden;
        }
        .compare-table th,
        .compare-table td {
            padding: 15px 16px;
            text-align: left;
            font-size: 0.9rem;
            border-bottom: 1px solid #F3ECDE;
        }
        .compare-table th {
            background: #FAF6EF;
            font-weight: 650;
            color: var(--green-deep);
            font-size: 0.85rem;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .compare-table .highlight-col {
            background: #F9FBF7;
        }
        .tag-rec {
            display: inline-block;
            background: var(--tag-rec-bg);
            color: var(--tag-rec-text);
            font-size: 0.72rem;
            padding: 3px 10px;
            border-radius: 18px;
            font-weight: 620;
        }
        .tag-pro {
            display: inline-block;
            background: var(--tag-pro-bg);
            color: var(--tag-pro-text);
            font-size: 0.72rem;
            padding: 3px 10px;
            border-radius: 18px;
            font-weight: 620;
        }

        /* 使用场景 */
        .scenarios-section {
            padding: 76px 0;
            background: #fff;
        }
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 24px;
        }
        .scenario-card {
            background: var(--bg-card);
            border-radius: 24px;
            padding: 28px 22px;
            border: 1px solid var(--border-soft);
            text-align: center;
            transition: 0.25s;
        }
        .scenario-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-3px);
            box-shadow: 0 10px 24px -8px rgba(0, 0, 0, 0.05);
        }
        .scenario-emoji {
            font-size: 2.6rem;
            margin-bottom: 14px;
        }
        .scenario-card h4 {
            font-size: 1.15rem;
            color: var(--green-deep);
            margin-bottom: 8px;
            font-weight: 650;
        }
        .scenario-card p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        /* 步骤引导 */
        .steps-section {
            padding: 72px 0;
            background: var(--bg-cream);
        }
        .steps-flow {
            display: flex;
            gap: 22px;
            flex-wrap: wrap;
            justify-content: center;
            counter-reset: step;
        }
        .step-card {
            flex: 1;
            min-width: 200px;
            max-width: 280px;
            background: var(--bg-card);
            border-radius: 26px;
            padding: 30px 22px 24px;
            border: 1px solid var(--border-soft);
            text-align: center;
            position: relative;
            transition: 0.3s;
            counter-increment: step;
        }
        .step-card::after {
            content: counter(step);
            position: absolute;
            top: -16px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--green-mid);
            color: #fff;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
        }
        .step-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
            box-shadow: 0 10px 24px -8px rgba(0, 0, 0, 0.05);
        }
        .step-card h4 {
            font-size: 1.1rem;
            color: var(--green-deep);
            margin: 12px 0 7px;
            font-weight: 650;
        }
        .step-card p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-section {
            padding: 72px 0;
            background: #fff;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: 18px;
            padding: 20px 24px;
            border: 1px solid var(--border-soft);
            transition: 0.25s;
        }
        .faq-item:hover {
            border-color: var(--border-hover);
            background: #FFFEFC;
        }
        .faq-item h4 {
            font-size: 1.04rem;
            color: var(--green-deep);
            margin-bottom: 7px;
            font-weight: 650;
        }
        .faq-item p {
            font-size: 0.9rem;
            color: var(--text-mid);
            line-height: 1.6;
        }

        /* CTA */
        .cta-band {
            padding: 60px 0;
            background: linear-gradient(140deg, #FCFAF5 0%, #F5EFE4 100%);
            text-align: center;
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }
        .cta-band h2 {
            font-size: 1.9rem;
            font-weight: 750;
            color: var(--green-deep);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .cta-band p {
            font-size: 1rem;
            color: var(--text-mid);
            margin-bottom: 26px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-band .btn-primary {
            font-size: 1.08rem;
            padding: 14px 40px;
        }

        /* Footer */
        .footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding: 50px 0 28px;
            font-size: 0.88rem;
            border-top: 1px solid var(--footer-border);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-col h4 {
            color: #7B6B56;
            margin-bottom: 16px;
            font-weight: 620;
            font-size: 0.95rem;
        }
        .footer-col a {
            display: block;
            color: #896F52;
            text-decoration: none;
            margin-bottom: 9px;
            transition: 0.2s;
            font-size: 0.86rem;
        }
        .footer-col a:hover {
            color: var(--copper);
        }
        .copyright {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid var(--footer-border);
            color: #A28C70;
            font-size: 0.82rem;
        }

        /* 响应式 */
        @media (max-width: 768px) {
            .hero-grid {
                grid-template-columns: 1fr;
                text-align: center;
                gap: 28px;
            }
            .hero-visual {
                order: -1;
            }
            .hero-content .tagline {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .btn-group {
                justify-content: center;
            }
            .stats-row {
                justify-content: center;
            }
            .navbar {
                flex-direction: column;
            }
            .nav-links {
                justify-content: center;
                gap: 16px;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .gateways-grid {
                grid-template-columns: 1fr;
            }
            .steps-flow {
                flex-direction: column;
                align-items: center;
            }
            .step-card {
                max-width: 100%;
            }
            .compare-table {
                min-width: 500px;
                font-size: 0.82rem;
            }
            .compare-table th,
            .compare-table td {
                padding: 10px 10px;
                font-size: 0.78rem;
            }
            .cta-band h2 {
                font-size: 1.4rem;
            }
            .feature-card {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .section-title {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 480px) {
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .hero-visual-card {
                padding: 16px 10px;
                border-radius: 32px;
            }
            .gateway-card {
                padding: 22px 14px;
            }
            .compare-table {
                min-width: 400px;
            }
            .compare-table th,
            .compare-table td {
                padding: 7px 7px;
                font-size: 0.7rem;
            }
            .container {
                padding: 0 14px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
        }