/* roulang page: index */
:root {
            --bg-primary: #0d0015;
            --bg-secondary: #1a0b2e;
            --accent-neon: #ff2d78;
            --accent-neon-hover: #ff5580;
            --accent-cyan: #00f0ff;
            --card-bg: rgba(20, 5, 40, 0.7);
            --text-main: #e0e0e0;
            --text-muted: #9b9bb2;
            --border-glow: rgba(255, 45, 120, 0.4);
            --border-cyan: rgba(0, 240, 255, 0.5);
            --shadow-glow: 0 0 15px rgba(255, 45, 120, 0.6);
            --shadow-cyan: 0 0 20px rgba(0, 240, 255, 0.4);
            --radius-card: 12px;
            --radius-btn: 30px;
            --font-display: "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-tech: "Rajdhani", "Orbitron", monospace;
            --spacing-section: 80px;
            --spacing-inner: 40px;
            --nav-height: 64px;
            --progress-height: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--nav-height) + var(--progress-height) + 20px);
        }

        body {
            font-family: var(--font-display);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 30% 20%, rgba(255, 45, 120, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 50%, rgba(0, 240, 255, 0.05) 0%, transparent 60%),
                radial-gradient(ellipse at 50% 80%, rgba(255, 45, 120, 0.04) 0%, transparent 60%);
            background-attachment: fixed;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--accent-neon);
        }
        a:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button {
            cursor: pointer;
            font-family: var(--font-display);
            border: none;
            transition: all 0.3s ease;
        }
        button:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
        }

        input,
        textarea {
            font-family: var(--font-display);
            font-size: 16px;
            transition: all 0.3s ease;
        }
        input:focus-visible,
        textarea:focus-visible {
            outline: none;
        }

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

        /* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(10, 0, 20, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            border-image: linear-gradient(90deg, var(--accent-neon), transparent, var(--accent-cyan)) 1;
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--accent-neon);
            letter-spacing: 2px;
            white-space: nowrap;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: text-shadow 0.3s ease;
        }
        .logo:hover {
            text-shadow: 0 0 20px rgba(255, 45, 120, 0.8);
            color: var(--accent-neon);
        }
        .logo-icon {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--accent-neon), var(--accent-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
            font-weight: 900;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-links a {
            color: var(--text-main);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            transition: color 0.3s ease;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-neon);
            border-radius: 1px;
            transition: width 0.3s ease;
        }
        .nav-links a:hover {
            color: #fff;
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .nav-cta {
            background: var(--accent-neon);
            color: #fff !important;
            padding: 8px 20px !important;
            border-radius: var(--radius-btn);
            font-weight: 600 !important;
            transition: all 0.3s ease !important;
        }
        .nav-cta:hover {
            background: var(--accent-neon-hover) !important;
            box-shadow: var(--shadow-glow);
            transform: scale(1.04);
        }
        .nav-cta::after {
            display: none !important;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            z-index: 1001;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* 进度步骤导航 */
        .progress-nav {
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            z-index: 999;
            height: var(--progress-height);
            background: var(--bg-primary);
            border-bottom: 1px solid rgba(255, 45, 120, 0.2);
            display: flex;
            align-items: center;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .progress-nav::-webkit-scrollbar {
            height: 0;
        }
        .progress-steps {
            display: flex;
            align-items: center;
            gap: 0;
            min-width: max-content;
            padding: 0 24px;
            margin: 0 auto;
        }
        .progress-step {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            color: #555;
            white-space: nowrap;
            cursor: pointer;
            transition: all 0.3s ease;
            padding: 6px 14px;
            border-radius: 20px;
            position: relative;
            text-decoration: none;
        }
        .progress-step .step-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #555;
            transition: all 0.3s ease;
            flex-shrink: 0;
        }
        .progress-step.active {
            color: var(--accent-neon);
            background: rgba(255, 45, 120, 0.1);
        }
        .progress-step.active .step-dot {
            background: var(--accent-neon);
            box-shadow: 0 0 10px rgba(255, 45, 120, 0.7);
        }
        .progress-step.done {
            color: var(--accent-cyan);
        }
        .progress-step.done .step-dot {
            background: var(--accent-cyan);
            box-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
        }
        .progress-connector {
            width: 30px;
            height: 1.5px;
            background: #333;
            flex-shrink: 0;
            transition: background 0.3s ease;
        }
        .progress-connector.done {
            background: var(--accent-cyan);
        }

        /* 板块通用 */
        .section {
            padding: var(--spacing-section) 0;
            position: relative;
        }
        .section-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 3px;
            text-transform: uppercase;
            color: var(--accent-neon);
            margin-bottom: 12px;
            padding: 4px 12px;
            border: 1px solid rgba(255, 45, 120, 0.4);
            border-radius: 20px;
            background: rgba(255, 45, 120, 0.06);
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 700px;
            line-height: 1.9;
            margin-bottom: 32px;
        }

        /* Hero */
        .hero-section {
            padding-top: calc(var(--nav-height) + var(--progress-height) + 60px);
            padding-bottom: 80px;
            min-height: 85vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            background-blend-mode: overlay;
            background-color: rgba(10, 0, 20, 0.75);
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 40% 30%, rgba(255, 45, 120, 0.15) 0%, transparent 55%),
                radial-gradient(ellipse at 65% 60%, rgba(0, 240, 255, 0.1) 0%, transparent 55%);
            pointer-events: none;
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 45, 120, 0.15);
            border: 1px solid rgba(255, 45, 120, 0.5);
            border-radius: 30px;
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-neon);
            letter-spacing: 1px;
            margin-bottom: 20px;
            animation: pulse-badge 2s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 8px rgba(255, 45, 120, 0.4);
            }
            50% {
                box-shadow: 0 0 22px rgba(255, 45, 120, 0.8);
            }
        }
        .hero-badge .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-neon);
            animation: blink-dot 1s ease-in-out infinite;
        }
        @keyframes blink-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }
        .hero-title {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            letter-spacing: 1.5px;
            margin-bottom: 18px;
            max-width: 700px;
        }
        .hero-title .highlight {
            color: var(--accent-neon);
            text-shadow: 0 0 30px rgba(255, 45, 120, 0.5);
        }
        .hero-subtitle {
            font-size: 17px;
            color: #c0c0d0;
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 32px;
        }
        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-neon);
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 1px;
            transition: all 0.3s ease;
            text-decoration: none;
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--accent-neon-hover);
            box-shadow: 0 0 28px rgba(255, 45, 120, 0.7);
            transform: scale(1.04);
            color: #fff;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--accent-cyan);
            padding: 13px 30px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 16px;
            letter-spacing: 1px;
            border: 1.5px solid var(--accent-cyan);
            transition: all 0.3s ease;
            text-decoration: none;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
            color: #fff;
            border-color: #fff;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat .stat-number {
            display: block;
            font-family: var(--font-tech);
            font-size: 42px;
            font-weight: 700;
            color: var(--accent-cyan);
            text-shadow: 0 0 18px rgba(0, 240, 255, 0.6);
            letter-spacing: 2px;
            line-height: 1;
        }
        .hero-stat .stat-label {
            display: block;
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            letter-spacing: 1px;
        }

        /* 品牌故事 */
        .brand-story .story-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .story-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-glow);
            box-shadow: 0 0 30px rgba(255, 45, 120, 0.15);
            aspect-ratio: 4/3;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            background-blend-mode: overlay;
            background-color: rgba(20, 5, 40, 0.5);
            min-height: 300px;
        }
        .story-text h3 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .story-text p {
            color: #c0c0d0;
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .story-highlights {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .story-highlight-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--accent-cyan);
            font-weight: 600;
        }
        .story-highlight-item .icon-check {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            flex-shrink: 0;
        }

        /* 服务矩阵 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .service-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-glow);
            overflow: hidden;
            transition: all 0.4s ease;
            position: relative;
            cursor: pointer;
        }
        .service-card:hover {
            border-color: var(--accent-neon);
            box-shadow: 0 0 28px rgba(255, 45, 120, 0.5);
            transform: translateY(-6px);
        }
        .service-card .card-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            position: relative;
            background: linear-gradient(135deg, #1a0b2e, #0d0015);
        }
        .service-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .service-card:hover .card-img img {
            transform: scale(1.06);
        }
        .service-card .card-img::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent 40%, rgba(255, 255, 255, 0.06) 50%, transparent 60%);
            transition: all 0.5s ease;
            pointer-events: none;
            opacity: 0;
        }
        .service-card:hover .card-img::after {
            opacity: 1;
            animation: shimmer 0.8s ease forwards;
        }
        @keyframes shimmer {
            from {
                transform: translateX(-30%) translateY(-30%);
            }
            to {
                transform: translateX(30%) translateY(30%);
            }
        }
        .service-card .card-body {
            padding: 18px;
        }
        .service-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .service-card .card-stars {
            color: var(--accent-neon);
            font-size: 13px;
            letter-spacing: 2px;
            margin-bottom: 8px;
        }
        .service-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }
        .service-card .card-tag {
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 12px;
            background: rgba(255, 45, 120, 0.12);
            color: var(--accent-neon);
            border: 1px solid rgba(255, 45, 120, 0.3);
            white-space: nowrap;
        }
        .service-card .card-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 结果对比 */
        .compare-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            max-width: 900px;
            margin: 0 auto;
        }
        .compare-panel {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 32px 28px;
        }
        .compare-panel.bad {
            border-color: rgba(255, 255, 255, 0.08);
            background: rgba(30, 10, 20, 0.6);
        }
        .compare-panel.good {
            border-color: var(--border-glow);
            background: rgba(20, 5, 40, 0.8);
            box-shadow: 0 0 25px rgba(255, 45, 120, 0.12);
        }
        .compare-panel h4 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
            text-align: center;
        }
        .compare-panel.bad h4 {
            color: #777;
        }
        .compare-panel.good h4 {
            color: var(--accent-neon);
        }
        .compare-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .compare-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .compare-list .icon-fail {
            color: #666;
            font-size: 16px;
            flex-shrink: 0;
        }
        .compare-list .icon-pass {
            color: var(--accent-cyan);
            font-size: 16px;
            flex-shrink: 0;
            text-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
        }
        .compare-panel.bad .compare-list li {
            color: #888;
        }
        .compare-panel.good .compare-list li {
            color: #e0e0e0;
        }

        /* 时间线 */
        .timeline {
            position: relative;
            max-width: 700px;
            margin: 0 auto;
            padding-left: 40px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 18px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--accent-neon), var(--accent-cyan), var(--accent-neon));
            border-radius: 1px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 36px;
            padding-left: 30px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-neon);
            border: 3px solid var(--bg-primary);
            box-shadow: 0 0 12px rgba(255, 45, 120, 0.6);
            z-index: 2;
        }
        .timeline-item:nth-child(even)::before {
            background: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.6);
        }
        .timeline-item .timeline-step {
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--accent-neon);
            margin-bottom: 4px;
        }
        .timeline-item h4 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .timeline-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .timeline-item .unlock-badge {
            display: inline-block;
            margin-top: 8px;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 14px;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 240, 255, 0.3);
            font-weight: 600;
        }

        /* 口碑气泡 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 24px;
            position: relative;
            transition: all 0.3s ease;
        }
        .testimonial-card:hover {
            border-color: var(--border-glow);
            box-shadow: 0 0 20px rgba(255, 45, 120, 0.2);
        }
        .testimonial-card .quote-mark {
            font-size: 48px;
            color: var(--accent-neon);
            line-height: 1;
            opacity: 0.5;
            margin-bottom: -10px;
        }
        .testimonial-card .testimonial-text {
            font-size: 14px;
            color: #c0c0d0;
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }
        .testimonial-card .testimonial-author {
            font-size: 13px;
            color: var(--accent-cyan);
            font-weight: 600;
        }
        .testimonial-card .testimonial-role {
            font-size: 11px;
            color: var(--text-muted);
        }

        /* 资讯区 */
        .info-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
        }
        .info-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .info-list li {
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 14px 0;
            transition: all 0.3s ease;
        }
        .info-list li:hover {
            padding-left: 8px;
        }
        .info-list a {
            font-size: 15px;
            color: #d0d0d0;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .info-list a:hover {
            color: var(--accent-neon);
        }
        .info-list .info-date {
            font-size: 11px;
            color: var(--text-muted);
            flex-shrink: 0;
            min-width: 50px;
        }
        .info-recommend {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-glow);
            padding: 24px;
        }
        .info-recommend h4 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 45, 120, 0.3);
        }
        .info-recommend .rec-item {
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .info-recommend .rec-item:last-child {
            border-bottom: none;
        }
        .info-recommend .rec-item a {
            font-size: 14px;
            color: #c0c0d0;
            font-weight: 500;
            transition: color 0.3s ease;
        }
        .info-recommend .rec-item a:hover {
            color: var(--accent-cyan);
        }
        .info-recommend .rec-tag {
            display: inline-block;
            font-size: 10px;
            padding: 2px 8px;
            border-radius: 10px;
            background: rgba(255, 45, 120, 0.15);
            color: var(--accent-neon);
            margin-bottom: 4px;
        }

        /* FAQ */
        .faq-list {
            max-width: 750px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-item.open {
            border-left: 3px solid var(--accent-neon);
            border-color: var(--border-glow);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 20px;
            background: none;
            border: none;
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            transition: all 0.3s ease;
            font-family: var(--font-display);
            letter-spacing: 0.5px;
        }
        .faq-question .faq-q {
            font-size: 20px;
            font-weight: 800;
            color: var(--accent-neon);
            flex-shrink: 0;
            width: 28px;
            text-align: center;
        }
        .faq-question .faq-arrow {
            margin-left: auto;
            font-size: 14px;
            transition: transform 0.3s ease;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-neon);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px 62px;
        }
        .faq-answer p {
            font-size: 14px;
            color: #c0c0d0;
            line-height: 1.8;
        }

        /* 转化表单 */
        .form-section {
            background: var(--card-bg);
            border-radius: 16px;
            border: 1px solid var(--border-glow);
            padding: 48px 40px;
            max-width: 650px;
            margin: 0 auto;
            box-shadow: 0 0 40px rgba(255, 45, 120, 0.08);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-neon);
            margin-bottom: 6px;
            letter-spacing: 1px;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 13px 16px;
            background: transparent;
            border: 1px solid rgba(255, 45, 120, 0.5);
            border-radius: 8px;
            color: #fff;
            font-size: 15px;
            transition: all 0.3s ease;
            resize: vertical;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.3);
            outline: none;
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #555;
        }
        .form-submit-btn {
            width: 100%;
            padding: 15px;
            background: var(--accent-neon);
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            letter-spacing: 1px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            margin-top: 8px;
        }
        .form-submit-btn:hover {
            background: var(--accent-neon-hover);
            box-shadow: 0 0 30px rgba(255, 45, 120, 0.7);
            transform: scale(1.03);
        }

        /* 页脚 */
        .site-footer {
            background: #080015;
            border-top: 1px solid rgba(255, 45, 120, 0.25);
            padding: 48px 0 24px;
            text-align: center;
        }
        .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--accent-neon);
            letter-spacing: 2px;
            margin-bottom: 16px;
            display: inline-block;
        }
        .footer-links {
            display: flex;
            gap: 24px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 20px;
            list-style: none;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
            transition: color 0.3s ease;
        }
        .footer-links a:hover {
            color: var(--accent-cyan);
        }
        .footer-copy {
            font-size: 12px;
            color: #555;
            letter-spacing: 1px;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent-neon);
            color: #fff;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.3s ease;
            z-index: 900;
            border: none;
            box-shadow: 0 0 16px rgba(255, 45, 120, 0.5);
            pointer-events: none;
        }
        .back-to-top.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .back-to-top:hover {
            background: var(--accent-neon-hover);
            box-shadow: 0 0 28px rgba(255, 45, 120, 0.8);
            transform: translateY(-3px);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .brand-story .story-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-title {
                font-size: 34px;
            }
            .compare-wrapper {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .info-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 75%;
                max-width: 320px;
                height: 100vh;
                background: rgba(10, 0, 20, 0.97);
                flex-direction: column;
                padding: 80px 30px 30px;
                gap: 20px;
                transition: right 0.35s ease;
                z-index: 1000;
                border-left: 1px solid rgba(255, 45, 120, 0.3);
            }
            .nav-links.open {
                right: 0;
            }
            .hamburger {
                display: flex;
            }
            .services-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat .stat-number {
                font-size: 32px;
            }
            .section-title {
                font-size: 24px;
            }
            .section {
                padding: 50px 0;
            }
            .form-section {
                padding: 28px 20px;
            }
            .progress-nav {
                overflow-x: auto;
            }
            .progress-steps {
                padding: 0 12px;
                gap: 0;
            }
            .progress-step {
                font-size: 11px;
                padding: 5px 10px;
            }
            .progress-connector {
                width: 16px;
            }
            .timeline {
                padding-left: 28px;
            }
            .timeline::before {
                left: 12px;
            }
            .timeline-item {
                padding-left: 20px;
            }
            .timeline-item::before {
                left: -20px;
                width: 10px;
                height: 10px;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 24px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 14px;
                align-items: flex-start;
            }
            .hero-stat {
                text-align: left;
                display: flex;
                align-items: center;
                gap: 12px;
            }
            .hero-stat .stat-number {
                font-size: 28px;
            }
            .container {
                padding: 0 16px;
            }
            .section-title {
                font-size: 21px;
            }
            .compare-panel {
                padding: 20px 16px;
            }
            .back-to-top {
                bottom: 20px;
                right: 16px;
                width: 38px;
                height: 38px;
                font-size: 14px;
            }
        }