:root {
            --orange: #FF5A1B;
            --orange-light: #ff8c5a;
            --orange-dark: #e55a2b;
            --bg-dark: #fafbfc;
            --bg-card: #ffffff;
            --bg-card-hover: #f8fafc;
            --border: rgba(15, 23, 42, 0.08);
            --text: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--bg-dark);
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 导航 */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 0;
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 16px;
            color: var(--text);
            text-decoration: none;
            white-space: nowrap;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .logo-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .nav-links {
            display: flex;
            gap: 36px;
            list-style: none;
        }

        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.3s;
        }

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

        .nav-links a.active {
            color: var(--orange);
            font-weight: 600;
        }

        .nav-cta {
            background: #FF5A1B;
            color: white;
            padding: 10px 24px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-size: 14px;
            transition: transform 0.3s;
        }

        .nav-cta:hover {
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            cursor: pointer;
        }

        /* Hero */
        .hero {
            position: relative;
            z-index: 1;
            padding: 160px 24px 64px;
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
        }

        /* 首屏流体弥散渐变 */
        .hero-aurora {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            z-index: 0;
            overflow: hidden;
            pointer-events: none;
        }

        .aurora-blob {
            position: absolute;
            border-radius: 50%;
            filter: blur(90px);
            will-change: transform;
        }

        .blob-a {
            width: 520px;
            height: 520px;
            background: radial-gradient(circle, rgba(255, 140, 90, 0.34) 0%, transparent 65%);
            top: -140px;
            left: -120px;
            animation: aurora-a 22s ease-in-out infinite alternate;
        }

        .blob-b {
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(147, 178, 255, 0.32) 0%, transparent 65%);
            top: -100px;
            right: -120px;
            animation: aurora-b 26s ease-in-out infinite alternate;
        }

        .blob-c {
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(125, 211, 252, 0.3) 0%, transparent 65%);
            top: 42%;
            left: 58%;
            animation: aurora-c 20s ease-in-out infinite alternate;
        }

        .blob-d {
            width: 460px;
            height: 460px;
            background: radial-gradient(circle, rgba(196, 156, 255, 0.26) 0%, transparent 65%);
            bottom: -180px;
            left: 18%;
            animation: aurora-d 24s ease-in-out infinite alternate;
        }

        @keyframes aurora-a {
            from {
                transform: translate(0, 0) scale(1) rotate(0deg);
            }

            to {
                transform: translate(70px, 50px) scale(1.25) rotate(18deg);
            }
        }

        @keyframes aurora-b {
            from {
                transform: translate(0, 0) scale(1) rotate(0deg);
            }

            to {
                transform: translate(-60px, 45px) scale(1.18) rotate(-16deg);
            }
        }

        @keyframes aurora-c {
            from {
                transform: translate(0, 0) scale(1);
            }

            to {
                transform: translate(-55px, -40px) scale(1.15);
            }
        }

        @keyframes aurora-d {
            from {
                transform: translate(0, 0) scale(1);
            }

            to {
                transform: translate(45px, -35px) scale(1.22);
            }
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(255, 107, 53, 0.08);
            border-radius: 100px;
            color: var(--orange-dark);
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 28px;
        }

        .badge-dot {
            width: 8px;
            height: 8px;
            background: var(--orange);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {

            0%,
            100% {
                opacity: 1;
            }

            50% {
                opacity: 0.5;
            }
        }

        .hero h1 {
            font-size: 48px;
            font-weight: bold;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--orange) 0%, var(--orange-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 800px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* 价格卡片 */
        .pricing-section {
            position: relative;
            z-index: 1;
            padding: 40px 24px 80px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .plan-card {
            display: grid;
            grid-template-columns: 260px 1fr auto;
            gap: 32px;
            align-items: center;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 32px 36px;
            margin-bottom: 20px;
            transition: border-color 0.3s;
            position: relative;
            overflow: hidden;
        }

        .plan-card:hover {
            border-color: rgba(255, 107, 53, 0.35);
        }

        .plan-card.featured {
            border-color: rgba(255, 107, 53, 0.35);
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, #ffffff 55%);
        }

        .plan-tag {
            position: absolute;
            top: 20px;
            right: -36px;
            transform: rotate(45deg);
            background: #FF5A1B;
            color: white;
            font-size: 12px;
            font-weight: 700;
            padding: 6px 54px;
        }

        .plan-left {
            text-align: left;
        }

        .plan-name {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .plan-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .plan-price-row {
            display: flex;
            align-items: baseline;
            gap: 10px;
            flex-wrap: wrap;
        }

        .plan-price {
            font-size: 36px;
            font-weight: 900;
            color: var(--orange);
            line-height: 1;
        }

        .plan-price .currency {
            font-size: 20px;
            font-weight: 700;
        }

        .plan-original {
            font-size: 14px;
            color: var(--text-muted);
            text-decoration: line-through;
        }

        .plan-discount {
            font-size: 12px;
            color: var(--orange-dark);
            background: rgba(255, 107, 53, 0.08);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
        }

        .plan-per-day {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        .plan-benefits {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .benefit-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .benefit-item svg {
            width: 18px;
            height: 18px;
            color: var(--orange);
            flex-shrink: 0;
        }

        .benefit-item strong {
            color: var(--text);
        }

        .plan-btn {
            background: #FF5A1B;
            color: white;
            padding: 12px 60px;
            border-radius: 10px;
            text-decoration: none;
            font-weight: 700;
            font-size: 15px;
            transition: all 0.3s;
            display: inline-block;
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }

        .plan-btn:hover {
            transform: translateY(-2px);
        }

        .plan-btn.ghost {
            background: var(--bg-card);
            border: 1px solid var(--orange);
            color: var(--orange);
        }

        .plan-btn.ghost:hover {
            background: var(--bg-card-hover);
            border-color: rgba(15, 23, 42, 0.2);
        }

        /* 服务保障 */
        .guarantee-section {
            padding: 80px 24px;
        }

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

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 14px;
            background: rgba(255, 107, 53, 0.08);
            border-radius: 100px;
            color: var(--orange-dark);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            letter-spacing: -0.02em;
        }

        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .guarantee-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 32px 24px;
            text-align: center;
            transition: border-color 0.3s;
        }

        .guarantee-card:hover {
            border-color: rgba(255, 107, 53, 0.3);
        }

        .guarantee-icon {
            width: 56px;
            height: 56px;
            background: rgba(255, 107, 53, 0.08);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }

        .guarantee-icon svg {
            width: 28px;
            height: 28px;
            color: var(--orange);
        }

        .guarantee-card h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        /* FAQ */
        .faq-section {
            padding: 80px 24px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 24px 28px;
            margin-bottom: 16px;
            transition: border-color 0.3s;
        }

        .faq-item:hover {
            border-color: rgba(255, 107, 53, 0.3);
        }

        .faq-item h5 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .faq-item h5 span {
            color: var(--orange);
            font-weight: 800;
        }

        .faq-item p {
            font-size: 14px;
            color: var(--text-secondary);
            padding-left: 28px;
        }

        /* Footer */
        footer {
            background: #0b1020;
            padding: 60px 24px 40px;
        }

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

        .footer-top {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 40px;
            flex-wrap: wrap;
            gap: 40px;
        }

        .footer-brand {
            max-width: 320px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
            color: #f1f5f9;
        }

        .footer-brand p {
            color: rgba(241, 245, 249, 0.6);
            font-size: 14px;
            line-height: 1.7;
        }

        .footer-contact {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 18px;
            color: rgba(241, 245, 249, 0.6);
            font-size: 14px;
        }

        .footer-contact svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
        }

        .footer-contact a {
            color: inherit;
            font-size: 15px;
            text-decoration: none;
        }

        .footer-links {
            display: flex;
            gap: 150px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 16px;
            color: #f1f5f9;
        }

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

        .footer-col li {
            margin-bottom: 10px;
        }

        .footer-col a {
            color: rgba(241, 245, 249, 0.6);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-bottom p {
            color: rgba(241, 245, 249, 0.4);
            font-size: 13px;
        }

        .footer-bottom p a {
            color: rgba(241, 245, 249, 0.4);
            font-size: 13px;
        }

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

        /* 动画 */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 响应式 */
        @media (max-width: 900px) {
            .plan-card {
                grid-template-columns: 1fr;
                gap: 20px;
                text-align: left;
            }

            .plan-btn {
                width: 100%;
                text-align: center;
            }

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

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .mobile-menu-btn {
                display: block;
            }

            .hero {
                padding-top: 140px;
            }

            .hero h1 {
                font-size: 32px;
            }

            .section-title {
                font-size: 26px;
            }

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

            .footer-links {
                flex-direction: column;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .hero-aurora {
                height: 100svh;
            }

            .aurora-blob {
                filter: blur(55px);
            }
        }

        @media (prefers-reduced-motion: reduce) {
            .aurora-blob {
                animation: none;
            }
        }