/* roulang page: index */
:root {
            --primary: #1C1C1E;
            --secondary: #F5F0EB;
            --accent: #C5A35A;
            --accent-deep: #A8883D;
            --text-dark: #2D2D2D;
            --text-light: #EAE8E3;
            --border-light: #E0DBD5;
            --border-gold: rgba(197, 163, 90, 0.2);
            --success: #2E5A4B;
            --error: #B55A5A;
            --radius-card: 12px;
            --radius-btn: 30px;
            --radius-input: 8px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(197, 163, 90, 0.3);
            --font-title: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-number: 'DIN', 'Oswald', 'Helvetica Neue', sans-serif;
            --transition-smooth: 0.25s ease-out;
            --transition-bounce: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
            font-size: 16px;
        }

        body {
            font-family: var(--font-title);
            font-weight: 400;
            line-height: 1.7;
            color: var(--text-dark);
            background: linear-gradient(180deg, #1C1C1E 0%, #2A2A2D 100%);
            background-attachment: fixed;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3 {
            font-weight: 700;
            letter-spacing: -0.5px;
            line-height: 1.25;
        }

        h1 {
            font-size: clamp(36px, 6vw, 56px);
            line-height: 1.15;
        }

        h2 {
            font-size: clamp(28px, 5vw, 42px);
            margin-bottom: 1rem;
        }

        h3 {
            font-size: clamp(18px, 3vw, 22px);
            font-weight: 600;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 导航栏 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 0;
            transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
            background: transparent;
        }

        .site-header.scrolled {
            background: rgba(245, 240, 235, 0.88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
            padding: 10px 0;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.5rem;
            color: #fff;
            transition: color 0.4s ease;
            flex-shrink: 0;
            letter-spacing: -0.3px;
        }

        .scrolled .logo {
            color: var(--text-dark);
        }

        .logo-icon {
            width: 32px;
            height: 32px;
            background: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #1C1C1E;
            font-weight: 900;
            font-size: 1rem;
            transition: background var(--transition-smooth);
        }

        .scrolled .logo-icon {
            background: var(--accent);
            color: #fff;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-link {
            position: relative;
            padding: 8px 16px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-smooth);
            font-size: 0.95rem;
            letter-spacing: 0.2px;
            white-space: nowrap;
        }

        .scrolled .nav-link {
            color: var(--text-dark);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 16px;
            right: 16px;
            height: 1.5px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-smooth);
        }

        .nav-link:hover::after,
        .nav-link:focus-visible::after {
            transform: scaleX(1);
        }

        .nav-link:hover {
            color: #fff;
        }

        .scrolled .nav-link:hover {
            color: var(--accent-deep);
        }

        .btn-nav-cta {
            background: var(--accent);
            color: #1C1C1E;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            letter-spacing: 0.3px;
            box-shadow: 0 2px 8px rgba(197, 163, 90, 0.3);
        }

        .btn-nav-cta:hover {
            background: #D4B36A;
            color: #000;
            box-shadow: 0 4px 16px rgba(197, 163, 90, 0.5);
            transform: translateY(-1px);
        }

        .scrolled .btn-nav-cta {
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        .btn-mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            z-index: 1001;
            background: transparent;
            border: none;
            cursor: pointer;
        }

        .btn-mobile-toggle span {
            display: block;
            width: 26px;
            height: 2px;
            background: #fff;
            transition: all 0.3s ease;
            border-radius: 2px;
        }

        .scrolled .btn-mobile-toggle span {
            background: var(--text-dark);
        }

        .btn-mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .btn-mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .btn-mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(28, 28, 30, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 999;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }

        .mobile-menu-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-menu-list {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 28px;
            text-align: center;
        }

        .mobile-menu-list a {
            font-size: 1.25rem;
            font-weight: 600;
            color: #EAE8E3;
            letter-spacing: 0.5px;
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-smooth);
        }

        .mobile-menu-list a::before {
            content: '';
            display: inline-block;
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            margin-right: 8px;
            vertical-align: middle;
            opacity: 0;
            transform: scale(0);
            transition: all var(--transition-smooth);
        }

        .mobile-menu-list a:hover::before,
        .mobile-menu-list a:focus-visible::before {
            opacity: 1;
            transform: scale(1);
        }

        .mobile-menu-list a:hover {
            color: var(--accent);
        }

        .mobile-menu-cta {
            margin-top: 12px;
            background: var(--accent);
            color: #1C1C1E;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.5px;
        }

        /* 板块通用样式 */
        .section {
            padding: 100px 0;
            position: relative;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 0.5rem;
        }

        .section-title {
            color: var(--text-dark);
            margin-bottom: 0.75rem;
        }

        .section-desc {
            color: #666;
            font-size: 1.05rem;
            max-width: 640px;
            line-height: 1.7;
        }

        .card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            overflow: hidden;
        }

        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
        }

        .bg-ivory {
            background: var(--secondary);
            border-radius: var(--radius-card);
            padding: 56px 40px;
        }

        .bg-dark-card {
            background: rgba(42, 42, 45, 0.7);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-card);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        /* Hero 首屏 */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 140px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 70% 30%, rgba(197, 163, 90, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 30% 70%, rgba(46, 90, 75, 0.08) 0%, transparent 55%);
            pointer-events: none;
        }

        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-content {
            animation: fadeInUp 0.7s ease-out 0.2s both;
            color: #fff;
        }

        .hero-tag {
            display: inline-block;
            background: rgba(197, 163, 90, 0.15);
            color: var(--accent);
            border: 1px solid rgba(197, 163, 90, 0.3);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 1.25rem;
        }

        .hero-title {
            color: #fff;
            margin-bottom: 1rem;
            font-weight: 800;
        }

        .hero-title .golden-text {
            background: linear-gradient(135deg, #D4B873, #C5A35A, #E0C78A);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(234, 232, 227, 0.8);
            margin-bottom: 2rem;
            line-height: 1.7;
            max-width: 480px;
        }

        .hero-trust {
            display: flex;
            align-items: center;
            gap: 24px;
            margin-bottom: 2rem;
        }

        .hero-trust-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            color: rgba(234, 232, 227, 0.75);
        }

        .hero-trust-item .count {
            font-family: var(--font-number);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
        }

        .btn-primary {
            display: inline-block;
            background: var(--accent);
            color: #1C1C1E;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.4px;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 18px rgba(197, 163, 90, 0.4);
            text-align: center;
            cursor: pointer;
            border: none;
        }

        .btn-primary:hover {
            background: #D4B36A;
            color: #000;
            box-shadow: 0 0 24px rgba(197, 163, 90, 0.65);
            transform: translateY(-2px);
        }

        .hero-visual {
            position: relative;
            animation: fadeInUp 0.7s ease-out 0.4s both;
        }

        .hero-abstract {
            width: 100%;
            aspect-ratio: 1 / 1;
            max-width: 500px;
            margin: 0 auto;
            position: relative;
            background: radial-gradient(circle at 30% 40%, rgba(197, 163, 90, 0.2) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(46, 90, 75, 0.15) 0%, transparent 50%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-ring {
            position: absolute;
            border-radius: 50%;
            border: 1.5px solid rgba(197, 163, 90, 0.25);
            animation: rotateSlow 20s linear infinite;
        }

        .hero-ring:nth-child(1) {
            width: 90%;
            height: 90%;
            animation-duration: 24s;
        }

        .hero-ring:nth-child(2) {
            width: 70%;
            height: 70%;
            animation-duration: 18s;
            animation-direction: reverse;
        }

        .hero-ring:nth-child(3) {
            width: 50%;
            height: 50%;
            animation-duration: 14s;
        }

        .hero-dot {
            position: absolute;
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            box-shadow: 0 0 12px rgba(197, 163, 90, 0.7);
            animation: pulseDot 2.5s ease-in-out infinite;
        }

        .hero-dot:nth-child(4) {
            top: 15%;
            left: 60%;
            animation-delay: 0s;
        }

        .hero-dot:nth-child(5) {
            top: 70%;
            left: 25%;
            animation-delay: 0.8s;
        }

        .hero-dot:nth-child(6) {
            top: 40%;
            left: 80%;
            animation-delay: 1.6s;
        }

        .hero-dot:nth-child(7) {
            top: 55%;
            left: 15%;
            animation-delay: 0.4s;
        }

        /* 功能分组板块 - 非对称1+3布局 */
        .features-grid {
            display: grid;
            grid-template-columns: 1.3fr 0.9fr;
            gap: 28px;
            align-items: stretch;
        }

        .feature-main {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: flex-end;
        }

        .feature-main-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
            z-index: 0;
        }

        .feature-main-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(28, 28, 30, 0.85) 0%, rgba(28, 28, 30, 0.2) 70%);
            z-index: 1;
        }

        .feature-main-content {
            position: relative;
            z-index: 2;
            padding: 36px 32px;
            color: #fff;
            width: 100%;
        }

        .feature-main-content h3 {
            font-size: 1.6rem;
            margin-bottom: 0.5rem;
            color: #fff;
        }

        .feature-main-content p {
            color: rgba(234, 232, 227, 0.8);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .feature-accent-line {
            width: 48px;
            height: 3px;
            background: var(--accent);
            margin-bottom: 1rem;
            border-radius: 2px;
        }

        .feature-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .feature-mini-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            display: flex;
            align-items: flex-start;
            gap: 16px;
            flex: 1;
        }

        .feature-mini-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .feature-mini-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            border: 1.5px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--accent);
            font-size: 1.1rem;
            transition: all var(--transition-smooth);
        }

        .feature-mini-card:hover .feature-mini-icon {
            background: var(--accent);
            color: #fff;
        }

        .feature-mini-text h3 {
            font-size: 1rem;
            margin-bottom: 4px;
            color: var(--text-dark);
        }

        .feature-mini-text p {
            font-size: 0.85rem;
            color: #777;
            line-height: 1.5;
        }

        .gold-line-animate {
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.8s ease-out;
            margin: 0.5rem 0 1rem;
            border-radius: 1px;
        }

        .gold-line-animate.visible {
            width: 60px;
        }

        /* 使用场景板块 */
        .scene-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .scene-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 3 / 4;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
        }

        .scene-card:nth-child(1) {
            aspect-ratio: 3 / 3.8;
            margin-top: 8px;
        }

        .scene-card:nth-child(2) {
            aspect-ratio: 3 / 4.2;
        }

        .scene-card:nth-child(3) {
            aspect-ratio: 3 / 3.7;
            margin-top: 4px;
        }

        .scene-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-card-hover);
        }

        .scene-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
            transition: transform 0.5s ease;
        }

        .scene-card:hover .scene-bg {
            transform: scale(1.06);
        }

        .scene-card:nth-child(1) .scene-bg {
            background-image: url('/assets/images/backpic/back-1.webp');
        }

        .scene-card:nth-child(2) .scene-bg {
            background-image: url('/assets/images/backpic/back-2.webp');
        }

        .scene-card:nth-child(3) .scene-bg {
            background-image: url('/assets/images/backpic/back-3.webp');
        }

        .scene-overlay {
            position: absolute;
            inset: 0;
            background: rgba(28, 28, 30, 0.45);
            z-index: 1;
            transition: background var(--transition-smooth);
        }

        .scene-card:hover .scene-overlay {
            background: rgba(28, 28, 30, 0.3);
        }

        .scene-content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 2;
            padding: 28px 24px;
            color: #fff;
        }

        .scene-content h3 {
            font-size: 1.3rem;
            margin-bottom: 0.35rem;
        }

        .scene-content p {
            font-size: 0.9rem;
            color: rgba(234, 232, 227, 0.8);
            line-height: 1.5;
        }

        /* 成功案例 / 数据背书 */
        .stats-scroll {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            padding-bottom: 8px;
        }

        .stats-scroll::-webkit-scrollbar {
            display: none;
        }

        .stat-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 28px 22px;
            box-shadow: var(--shadow-card);
            border-left: 3px solid var(--accent);
            transition: all var(--transition-smooth);
            min-width: 220px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .stat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
        }

        .stat-number {
            font-family: var(--font-number);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
        }

        .stat-label {
            font-size: 0.9rem;
            color: #666;
            font-weight: 500;
        }

        .stat-desc {
            font-size: 0.8rem;
            color: #999;
            line-height: 1.5;
        }

        /* 价格方案 / 服务层级 */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }

        .pricing-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 36px 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            gap: 16px;
            position: relative;
        }

        .pricing-card.featured {
            background: linear-gradient(180deg, #FFFEFA 0%, #F9F4EB 100%);
            border-left: 3px solid var(--accent);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1), 0 2px 6px rgba(0, 0, 0, 0.06);
            transform: translateY(-8px);
            z-index: 2;
        }

        .pricing-card.featured:hover {
            transform: translateY(-12px);
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.16), 0 0 0 1px rgba(197, 163, 90, 0.35);
        }

        .pricing-badge {
            position: absolute;
            top: 0;
            right: 20px;
            background: var(--accent);
            color: #1C1C1E;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 0 0 8px 8px;
            letter-spacing: 0.5px;
        }

        .pricing-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
        }

        .pricing-price {
            font-family: var(--font-number);
            font-size: 2.6rem;
            font-weight: 700;
            color: #1C1C1E;
            line-height: 1;
        }

        .pricing-price .currency {
            font-size: 1.4rem;
            font-weight: 600;
            vertical-align: super;
            margin-right: 2px;
        }

        .pricing-features {
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .pricing-features li {
            font-size: 0.9rem;
            color: #555;
            padding-left: 20px;
            position: relative;
            line-height: 1.5;
        }

        .pricing-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--success);
            font-weight: 700;
            font-size: 0.85rem;
        }

        .btn-pricing {
            display: block;
            width: 100%;
            text-align: center;
            padding: 12px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            transition: all var(--transition-smooth);
            border: 1.5px solid var(--accent);
            color: var(--accent-deep);
            background: transparent;
            cursor: pointer;
            font-size: 0.95rem;
            letter-spacing: 0.3px;
        }

        .btn-pricing:hover {
            background: var(--accent);
            color: #1C1C1E;
        }

        .pricing-card.featured .btn-pricing {
            background: var(--accent);
            color: #1C1C1E;
            font-weight: 700;
            box-shadow: 0 2px 10px rgba(197, 163, 90, 0.35);
        }

        .pricing-card.featured .btn-pricing:hover {
            background: #D4B36A;
            box-shadow: 0 4px 18px rgba(197, 163, 90, 0.55);
        }

        /* FAQ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-smooth);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            text-align: left;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-dark);
            cursor: pointer;
            transition: color var(--transition-smooth);
            gap: 16px;
        }

        .faq-question:hover {
            color: var(--accent-deep);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1.5px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.1rem;
            color: var(--accent);
            transition: all var(--transition-bounce);
            font-weight: 300;
            line-height: 1;
        }

        .faq-item.active .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(90deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: #666;
            font-size: 0.95rem;
            line-height: 1.65;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }

        /* 全局CTA */
        .cta-global {
            background: linear-gradient(180deg, #1C1C1E 0%, #252528 100%);
            text-align: center;
            padding: 80px 24px;
            border-radius: var(--radius-card);
            margin: 0 20px;
            position: relative;
            overflow: hidden;
        }

        .cta-global::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 140%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(197, 163, 90, 0.08) 0%, transparent 70%);
            pointer-events: none;
            animation: pulseGlow 4s ease-in-out infinite;
        }

        .cta-global .section-title {
            color: #fff;
            margin-bottom: 0.75rem;
            position: relative;
            z-index: 1;
        }

        .cta-global .section-desc {
            color: rgba(234, 232, 227, 0.7);
            margin: 0 auto 2rem;
            position: relative;
            z-index: 1;
        }

        .btn-cta-pulse {
            display: inline-block;
            background: var(--accent);
            color: #1C1C1E;
            padding: 16px 40px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 1.05rem;
            letter-spacing: 0.5px;
            transition: all var(--transition-smooth);
            box-shadow: 0 0 20px rgba(197, 163, 90, 0.5);
            animation: btnPulse 3s ease-in-out infinite;
            position: relative;
            z-index: 1;
            cursor: pointer;
            border: none;
        }

        .btn-cta-pulse:hover {
            background: #D4B36A;
            box-shadow: 0 0 32px rgba(197, 163, 90, 0.75);
            animation: none;
            transform: scale(1.04);
        }

        /* 页脚 */
        .site-footer {
            background: var(--secondary);
            padding: 64px 0 28px;
            color: var(--text-dark);
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            color: var(--text-dark);
            margin-bottom: 0.75rem;
            font-size: 1.3rem;
        }

        .footer-brand p {
            color: #666;
            line-height: 1.6;
            font-size: 0.85rem;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-dark);
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col a {
            color: #555;
            transition: color var(--transition-smooth);
            font-size: 0.85rem;
        }

        .footer-col a:hover {
            color: var(--accent-deep);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: #888;
        }

        .footer-bottom .domain {
            font-family: var(--font-number);
            color: var(--accent-deep);
            font-weight: 500;
        }

        /* 背景层级卡片 */
        .bg-card-float {
            background: var(--secondary);
            border-radius: var(--radius-card);
            padding: 56px 40px;
            position: relative;
            z-index: 2;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08);
            margin-top: -40px;
        }

        /* 动画关键帧 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(16px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes rotateSlow {
            from {
                transform: rotate(0deg);
            }
            to {
                transform: rotate(360deg);
            }
        }

        @keyframes pulseDot {
            0%,
            100% {
                opacity: 0.5;
                transform: scale(1);
            }
            50% {
                opacity: 1;
                transform: scale(1.8);
            }
        }

        @keyframes pulseGlow {
            0%,
            100% {
                opacity: 0.6;
            }
            50% {
                opacity: 1;
            }
        }

        @keyframes btnPulse {
            0%,
            100% {
                box-shadow: 0 0 20px rgba(197, 163, 90, 0.5);
            }
            50% {
                box-shadow: 0 0 36px rgba(197, 163, 90, 0.75);
                transform: scale(1.03);
            }
        }

        /* 响应式设计 */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-trust {
                justify-content: center;
            }
            .hero-visual {
                max-width: 360px;
                margin: 0 auto;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .feature-side {
                display: grid;
                grid-template-columns: repeat(3, 1fr);
            }
            .scene-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-card:nth-child(3) {
                grid-column: span 2;
                aspect-ratio: 3 / 2.5;
                max-height: 320px;
            }
            .stats-scroll {
                grid-template-columns: repeat(2, 1fr);
                overflow-x: visible;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 500px;
                margin: 0 auto;
            }
            .pricing-card.featured {
                transform: translateY(0);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-desktop {
                display: none;
            }
            .btn-mobile-toggle {
                display: flex;
            }
            .site-header.scrolled .btn-mobile-toggle span {
                background: var(--text-dark);
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
            .container {
                padding: 0 20px;
            }
            .hero {
                min-height: auto;
                padding: 120px 0 60px;
            }
            .hero-title {
                font-size: 36px;
            }
            h2 {
                font-size: 28px;
            }
            .bg-ivory,
            .bg-card-float {
                padding: 32px 20px;
            }
            .feature-side {
                grid-template-columns: 1fr;
            }
            .scene-cards {
                grid-template-columns: 1fr;
            }
            .scene-card,
            .scene-card:nth-child(1),
            .scene-card:nth-child(2),
            .scene-card:nth-child(3) {
                aspect-ratio: 16 / 9;
                grid-column: span 1;
                margin-top: 0;
                max-height: 280px;
            }
            .stats-scroll {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                min-width: auto;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .cta-global {
                margin: 0 8px;
                padding: 48px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-header {
                padding: 10px 0;
            }
            .logo {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .hero-trust {
                flex-direction: column;
                gap: 8px;
            }
            .stats-scroll {
                grid-template-columns: 1fr;
            }
            .btn-primary,
            .btn-cta-pulse {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
            .feature-main {
                min-height: 300px;
            }
            .feature-main-content {
                padding: 24px 18px;
            }
        }