/* roulang page: index */
:root {
            --bg-deep: #08080C;
            --bg-card: rgba(255, 255, 255, 0.03);
            --accent-green: #00F0A8;
            --accent-green-dark: #00B87A;
            --accent-orange: #FF6F20;
            --accent-orange-dark: #E05A10;
            --text-primary: #E5E5E5;
            --text-secondary: #9B9B9B;
            --text-muted: #6B6B7B;
            --border-subtle: rgba(0, 240, 168, 0.2);
            --border-glow: rgba(0, 240, 168, 0.5);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-pill: 30px;
            --shadow-glow-green: 0 0 20px rgba(0, 240, 168, 0.15);
            --shadow-glow-orange: 0 0 24px rgba(255, 111, 32, 0.2);
            --shadow-card-hover: 0 8px 40px rgba(0, 240, 168, 0.12);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Monaco', 'Courier New', monospace;
            --font-display: 'Montserrat', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            text-rendering: optimizeLegibility;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-deep);
            background-image:
                radial-gradient(ellipse at 20% 20%, rgba(0, 240, 168, 0.03) 0%, transparent 55%),
                radial-gradient(ellipse at 75% 60%, rgba(0, 240, 168, 0.02) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 85%, rgba(255, 111, 32, 0.02) 0%, transparent 50%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
            outline-offset: 3px;
        }
        a:hover {
            color: var(--accent-green);
        }
        a:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 3px;
            border-radius: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ============ 顶部导航 ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(8, 8, 12, 0.78);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(8, 8, 12, 0.94);
            border-bottom-color: rgba(0, 240, 168, 0.15);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.03em;
            white-space: nowrap;
            text-decoration: none;
            transition: opacity var(--transition-fast);
        }
        .logo-link:hover {
            color: #fff;
            opacity: 0.9;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            position: relative;
            flex-shrink: 0;
        }
        .logo-icon .bolt {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) rotate(-8deg);
            width: 6px;
            height: 26px;
            background: var(--accent-green);
            border-radius: 3px;
            box-shadow: 0 0 16px rgba(0, 240, 168, 0.7);
        }
        .logo-icon .bolt::before {
            content: '';
            position: absolute;
            top: -4px;
            left: 50%;
            transform: translateX(-50%);
            width: 14px;
            height: 14px;
            border-left: 7px solid transparent;
            border-right: 7px solid transparent;
            border-bottom: 12px solid var(--accent-green);
            filter: drop-shadow(0 0 6px rgba(0, 240, 168, 0.7));
        }
        .logo-icon .crosshair {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 28px;
            height: 28px;
            border: 1.5px solid rgba(0, 240, 168, 0.35);
            border-radius: 50%;
        }
        .logo-icon .crosshair::before,
        .logo-icon .crosshair::after {
            content: '';
            position: absolute;
            background: rgba(0, 240, 168, 0.3);
        }
        .logo-icon .crosshair::before {
            top: 50%;
            left: 2px;
            right: 2px;
            height: 1px;
            transform: translateY(-50%);
        }
        .logo-icon .crosshair::after {
            left: 50%;
            top: 2px;
            bottom: 2px;
            width: 1px;
            transform: translateX(-50%);
        }
        .logo-text-group {
            display: flex;
            flex-direction: column;
            line-height: 1;
        }
        .logo-text-main {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: 0.04em;
        }
        .logo-text-sub {
            font-size: 9px;
            font-weight: 600;
            letter-spacing: 0.12em;
            color: var(--accent-green);
            text-transform: uppercase;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-links a.nav-cta {
            background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
            color: #08080C;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            box-shadow: 0 2px 12px rgba(0, 240, 168, 0.25);
        }
        .nav-links a.nav-cta:hover {
            background: linear-gradient(135deg, #2dffbb, #00d48f);
            color: #08080C;
            box-shadow: 0 4px 22px rgba(0, 240, 168, 0.45);
            transform: translateY(-1px);
        }

        /* ============ 移动端底部导航 ============ */
        .mobile-bottom-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            background: rgba(15, 15, 20, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid rgba(0, 240, 168, 0.12);
            padding: 6px 8px 10px;
        }
        .mobile-bottom-nav .mbn-inner {
            display: flex;
            justify-content: space-around;
            align-items: center;
            max-width: 500px;
            margin: 0 auto;
        }
        .mbn-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            padding: 6px 8px;
            border-radius: var(--radius-md);
            color: var(--text-muted);
            font-size: 10px;
            font-weight: 500;
            text-decoration: none;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
            cursor: pointer;
        }
        .mbn-item .mbn-icon {
            font-size: 20px;
            line-height: 1;
            transition: transform var(--transition-fast);
        }
        .mbn-item.active {
            color: var(--accent-green);
        }
        .mbn-item.active::after {
            content: '';
            position: absolute;
            top: -7px;
            width: 6px;
            height: 6px;
            background: var(--accent-green);
            border-radius: 50%;
            box-shadow: 0 0 10px rgba(0, 240, 168, 0.8);
        }
        .mbn-item:active {
            transform: scale(0.93);
        }

        /* ============ Hero ============ */
        .hero-section {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            padding-top: 80px;
            padding-bottom: 60px;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-position: center 30%;
            opacity: 0.35;
            mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
            -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 0, 0, 0.4) 0%, rgba(8, 8, 12, 0.85) 70%);
        }
        .hero-particles {
            position: absolute;
            inset: 0;
            z-index: 2;
            pointer-events: none;
            overflow: hidden;
        }
        .hero-particle {
            position: absolute;
            width: 2px;
            height: 2px;
            background: var(--accent-green);
            border-radius: 50%;
            animation: floatUp 6s infinite ease-in;
            opacity: 0;
        }
        @keyframes floatUp {
            0% {
                transform: translateY(100vh) scale(0.5);
                opacity: 0;
            }
            15% {
                opacity: 0.9;
            }
            40% {
                opacity: 0.6;
            }
            70% {
                opacity: 0.2;
            }
            100% {
                transform: translateY(-10vh) scale(2);
                opacity: 0;
            }
        }
        .hero-particle:nth-child(1) {
            left: 10%;
            animation-delay: 0s;
            animation-duration: 5.5s;
        }
        .hero-particle:nth-child(2) {
            left: 25%;
            animation-delay: 0.8s;
            animation-duration: 7s;
        }
        .hero-particle:nth-child(3) {
            left: 40%;
            animation-delay: 1.6s;
            animation-duration: 6.2s;
        }
        .hero-particle:nth-child(4) {
            left: 55%;
            animation-delay: 2.2s;
            animation-duration: 8s;
        }
        .hero-particle:nth-child(5) {
            left: 70%;
            animation-delay: 3s;
            animation-duration: 5.8s;
        }
        .hero-particle:nth-child(6) {
            left: 82%;
            animation-delay: 3.8s;
            animation-duration: 6.6s;
        }
        .hero-particle:nth-child(7) {
            left: 18%;
            animation-delay: 4.5s;
            animation-duration: 7.3s;
        }
        .hero-particle:nth-child(8) {
            left: 62%;
            animation-delay: 5.2s;
            animation-duration: 5.4s;
        }
        .hero-particle:nth-child(9) {
            left: 34%;
            animation-delay: 1.2s;
            animation-duration: 6.9s;
        }
        .hero-particle:nth-child(10) {
            left: 76%;
            animation-delay: 2.8s;
            animation-duration: 7.5s;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            width: 100%;
        }
        .hero-text h1 {
            font-family: var(--font-display);
            font-size: 44px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: 0.02em;
            color: #fff;
            margin-bottom: 20px;
            text-shadow: 0 2px 30px rgba(0, 0, 0, 0.5);
        }
        .hero-text h1 .highlight {
            color: var(--accent-green);
            position: relative;
        }
        .hero-subtitle {
            font-size: 17px;
            line-height: 1.7;
            color: #C0C0C0;
            margin-bottom: 32px;
            max-width: 480px;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            cursor: pointer;
            text-decoration: none;
            position: relative;
            overflow: hidden;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
            color: #08080C;
            box-shadow: 0 4px 20px rgba(0, 240, 168, 0.3);
        }
        .btn-primary:hover {
            box-shadow: 0 6px 30px rgba(0, 240, 168, 0.5);
            transform: translateY(-2px);
            color: #08080C;
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-outline {
            border: 2px solid var(--accent-green);
            color: var(--accent-green);
            background: transparent;
        }
        .btn-outline:hover {
            background: rgba(0, 240, 168, 0.08);
            box-shadow: 0 0 24px rgba(0, 240, 168, 0.2);
            transform: translateY(-2px);
            color: var(--accent-green);
        }
        .btn-outline:active {
            transform: scale(0.97);
        }
        .btn-orange {
            background: linear-gradient(135deg, var(--accent-orange), var(--accent-orange-dark));
            color: #fff;
            box-shadow: 0 4px 20px rgba(255, 111, 32, 0.3);
        }
        .btn-orange:hover {
            box-shadow: 0 6px 30px rgba(255, 111, 32, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-orange:active {
            transform: scale(0.97);
        }

        .hero-data-cards {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .hero-data-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(0, 240, 168, 0.2);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            transition: all var(--transition-smooth);
            position: relative;
        }
        .hero-data-card:nth-child(1) {
            align-self: flex-start;
            margin-left: 20px;
        }
        .hero-data-card:nth-child(2) {
            align-self: center;
            margin-left: -10px;
        }
        .hero-data-card:nth-child(3) {
            align-self: flex-end;
            margin-left: 10px;
        }
        .hero-data-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .hero-data-value {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            line-height: 1;
            color: #fff;
            letter-spacing: 0.03em;
        }
        .hero-data-value.green {
            color: var(--accent-green);
        }
        .hero-data-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 6px;
            letter-spacing: 0.04em;
        }
        .hero-data-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-green);
            margin-top: 4px;
        }
        .scroll-down-indicator {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 3;
            animation: bounceDown 2s infinite;
            cursor: pointer;
            color: var(--accent-green);
            font-size: 28px;
            opacity: 0.7;
            transition: opacity var(--transition-fast);
        }
        .scroll-down-indicator:hover {
            opacity: 1;
        }
        @keyframes bounceDown {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }
            50% {
                transform: translateX(-50%) translateY(12px);
            }
        }

        /* ============ 板块通用 ============ */
        .section {
            padding: 100px 0;
            position: relative;
        }
        .section-header {
            margin-bottom: 56px;
            position: relative;
        }
        .section-header h2 {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: #fff;
            padding-top: 0;
            margin-top: 0;
            position: relative;
            padding-left: 16px;
        }
        .section-header h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 3px;
            background: var(--accent-green);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0, 240, 168, 0.5);
        }
        .section-divider {
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 240, 168, 0.35), transparent);
            margin: 0 auto;
            max-width: 400px;
        }

        /* ============ 指标看板 ============ */
        .stats-section {
            background: rgba(0, 0, 0, 0.2);
            position: relative;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: repeating-linear-gradient(0deg,
                    transparent,
                    transparent 40px,
                    rgba(0, 240, 168, 0.015) 40px,
                    rgba(0, 240, 168, 0.015) 41px),
                repeating-linear-gradient(90deg,
                    transparent,
                    transparent 40px,
                    rgba(0, 240, 168, 0.015) 40px,
                    rgba(0, 240, 168, 0.015) 41px);
            pointer-events: none;
            z-index: 0;
        }
        .stats-section .container {
            position: relative;
            z-index: 1;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid rgba(0, 240, 168, 0.15);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .stat-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 20%;
            right: 20%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 240, 168, 0.4), transparent);
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .stat-card:hover::after {
            left: 8%;
            right: 8%;
            background: linear-gradient(90deg, transparent, rgba(0, 240, 168, 0.7), transparent);
        }
        .stat-value {
            font-family: var(--font-mono);
            font-size: 40px;
            font-weight: 700;
            line-height: 1;
            color: #fff;
            letter-spacing: 0.03em;
            margin-bottom: 8px;
            transition: transform var(--transition-smooth);
        }
        .stat-card:hover .stat-value {
            transform: scale(1.06);
            color: var(--accent-green);
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            letter-spacing: 0.04em;
            margin-bottom: 8px;
        }
        .stat-trend {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
        }
        .stat-trend.up {
            color: var(--accent-green);
        }
        .stat-trend .arrow {
            font-size: 14px;
        }

        /* ============ 服务矩阵 ============ */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .service-card {
            background: var(--bg-card);
            border: 1px solid rgba(0, 240, 168, 0.15);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            display: flex;
            gap: 24px;
            align-items: flex-start;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(0, 240, 168, 0.5), transparent);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .service-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            background: rgba(255, 255, 255, 0.05);
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-card-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            border: 1px solid rgba(0, 240, 168, 0.3);
            background: rgba(0, 240, 168, 0.04);
        }
        .service-card-icon svg {
            width: 28px;
            height: 28px;
            stroke: var(--accent-green);
            fill: none;
            stroke-width: 2;
        }
        .service-card-body h3 {
            font-family: var(--font-display);
            font-size: 20px;
            font-weight: 600;
            line-height: 1.4;
            color: #fff;
            margin-bottom: 8px;
        }
        .service-card-body p {
            font-size: 14px;
            color: #C0C0C0;
            line-height: 1.65;
            margin-bottom: 10px;
        }
        .service-card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            letter-spacing: 0.03em;
            cursor: pointer;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .service-card-link:hover {
            color: #fff;
            gap: 8px;
        }
        .service-card-thumb {
            flex-shrink: 0;
            width: 80px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            opacity: 0.8;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition-smooth);
        }
        .service-card:hover .service-card-thumb {
            opacity: 1;
            border-color: rgba(0, 240, 168, 0.4);
        }

        /* ============ 结果对比 ============ */
        .results-section {
            background: rgba(0, 0, 0, 0.25);
            position: relative;
        }
        .results-compare {
            display: grid;
            grid-template-columns: 1fr 60px 1fr;
            gap: 0;
            align-items: stretch;
            max-width: 900px;
            margin: 0 auto;
        }
        .compare-panel {
            padding: 40px 32px;
            border-radius: var(--radius-lg);
            transition: all var(--transition-smooth);
            text-align: center;
        }
        .compare-panel.before {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: #8A8A8A;
        }
        .compare-panel.after {
            background: rgba(0, 240, 168, 0.03);
            border: 1px solid rgba(0, 240, 168, 0.35);
            box-shadow: 0 0 30px rgba(0, 240, 168, 0.08);
        }
        .compare-divider {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        .compare-divider-line {
            width: 2px;
            height: 60%;
            background: linear-gradient(180deg, transparent, var(--accent-green), transparent);
            border-radius: 1px;
            box-shadow: 0 0 16px rgba(0, 240, 168, 0.5);
        }
        .compare-divider-icon {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 40px;
            height: 40px;
            background: var(--bg-deep);
            border: 2px solid var(--accent-green);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            font-weight: 700;
            font-size: 18px;
            box-shadow: 0 0 20px rgba(0, 240, 168, 0.3);
        }
        .compare-label {
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            font-weight: 600;
            margin-bottom: 20px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            display: inline-block;
        }
        .compare-panel.before .compare-label {
            background: rgba(255, 255, 255, 0.06);
            color: #8A8A8A;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .compare-panel.after .compare-label {
            background: rgba(0, 240, 168, 0.1);
            color: var(--accent-green);
            border: 1px solid rgba(0, 240, 168, 0.3);
        }
        .compare-metric {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 8px;
            letter-spacing: 0.03em;
        }
        .compare-panel.before .compare-metric {
            color: #7A7A7A;
            text-decoration: line-through;
            text-decoration-color: rgba(255, 255, 255, 0.2);
            text-decoration-thickness: 2px;
        }
        .compare-panel.after .compare-metric {
            color: var(--accent-green);
            text-shadow: 0 0 20px rgba(0, 240, 168, 0.4);
        }
        .compare-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .compare-source {
            text-align: center;
            margin-top: 20px;
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item.active {
            border-color: rgba(0, 240, 168, 0.25);
            background: rgba(0, 240, 168, 0.02);
        }
        .faq-question {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 20px 22px;
            cursor: pointer;
            user-select: none;
            transition: background var(--transition-fast);
            width: 100%;
            text-align: left;
            color: inherit;
            font-size: inherit;
            background: none;
            border: none;
            font-family: inherit;
        }
        .faq-question:hover {
            background: rgba(255, 255, 255, 0.02);
        }
        .faq-q-badge {
            flex-shrink: 0;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: rgba(0, 240, 168, 0.12);
            color: var(--accent-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition-smooth);
        }
        .faq-item.active .faq-q-badge {
            background: var(--accent-green);
            color: #08080C;
            box-shadow: 0 0 14px rgba(0, 240, 168, 0.5);
        }
        .faq-q-text {
            flex: 1;
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            color: #E5E5E5;
            padding-top: 3px;
        }
        .faq-arrow {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition-smooth);
            color: var(--text-secondary);
            font-size: 18px;
            margin-top: 2px;
        }
        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-green);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            background: rgba(0, 0, 0, 0.2);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 22px 20px 66px;
            font-size: 15px;
            line-height: 1.7;
            color: #C0C0C0;
        }

        /* ============ CTA + 表单 ============ */
        .cta-section {
            position: relative;
            overflow: hidden;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            background-position: center 40%;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: rgba(8, 8, 12, 0.88);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            max-width: 1000px;
            margin: 0 auto;
        }
        .cta-headline {
            font-family: var(--font-display);
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-sub {
            font-size: 16px;
            color: #C0C0C0;
            line-height: 1.7;
        }
        .contact-form {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .form-group {
            position: relative;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 14px 16px;
            background: rgba(0, 0, 0, 0.5);
            border: none;
            border-bottom: 1px solid rgba(0, 240, 168, 0.35);
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
            color: #E5E5E5;
            font-size: 15px;
            transition: all var(--transition-smooth);
            font-family: var(--font-body);
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-muted);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-bottom-width: 2px;
            border-bottom-color: var(--accent-green);
            box-shadow: 0 4px 16px rgba(0, 240, 168, 0.1);
            background: rgba(0, 0, 0, 0.65);
            outline: none;
        }
        .form-group textarea {
            resize: vertical;
            min-height: 100px;
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
        }
        .form-success {
            display: none;
            padding: 20px;
            background: rgba(0, 240, 168, 0.08);
            border: 1px solid rgba(0, 240, 168, 0.4);
            border-radius: var(--radius-md);
            color: var(--accent-green);
            font-weight: 600;
            text-align: center;
            font-size: 16px;
            animation: fadeInUp 0.4s ease;
        }
        .form-success.visible {
            display: block;
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(16px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .form-error {
            display: none;
            padding: 12px 16px;
            background: rgba(255, 80, 60, 0.08);
            border: 1px solid rgba(255, 80, 60, 0.35);
            border-radius: var(--radius-sm);
            color: #ff6b5b;
            font-size: 14px;
            text-align: center;
            animation: fadeInUp 0.3s ease;
        }
        .form-error.visible {
            display: block;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #06060A;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding: 48px 0 32px;
            text-align: center;
            position: relative;
        }
        .site-footer::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-green), transparent);
            opacity: 0.5;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 22px;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
            text-decoration: none;
        }
        .footer-logo:hover {
            color: #fff;
            opacity: 0.85;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }
        .footer-links {
            display: flex;
            gap: 24px;
            justify-content: center;
            flex-wrap: wrap;
            list-style: none;
            margin-bottom: 20px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .footer-links a:hover {
            color: var(--accent-green);
        }
        .footer-domain {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            letter-spacing: 0.03em;
        }
        .footer-copyright {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 36px;
                text-align: center;
            }
            .hero-text h1 {
                font-size: 36px;
            }
            .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-data-cards {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
                gap: 14px;
            }
            .hero-data-card:nth-child(1),
            .hero-data-card:nth-child(2),
            .hero-data-card:nth-child(3) {
                align-self: auto;
                margin-left: 0;
            }
            .hero-data-card {
                flex: 1 1 140px;
                min-width: 130px;
                text-align: center;
            }
            .hero-data-value {
                font-size: 28px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .services-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .results-compare {
                grid-template-columns: 1fr 40px 1fr;
            }
            .compare-panel {
                padding: 28px 18px;
            }
            .compare-metric {
                font-size: 24px;
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-headline {
                font-size: 26px;
                text-align: center;
            }
            .cta-sub {
                text-align: center;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                display: none;
            }
            .mobile-bottom-nav {
                display: block;
            }
            body {
                padding-bottom: 80px;
            }
            .hero-section {
                padding-top: 40px;
                min-height: auto;
                padding-bottom: 80px;
            }
            .hero-text h1 {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
                gap: 12px;
            }
            .btn {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
            .hero-data-cards {
                flex-direction: column;
            }
            .hero-data-card {
                flex: 1 1 auto;
                min-width: auto;
            }
            .section {
                padding: 60px 0;
            }
            .section-header h2 {
                font-size: 26px;
                padding-left: 12px;
            }
            .section-header h2::before {
                width: 2px;
                top: 5px;
                bottom: 5px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-value {
                font-size: 30px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .services-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .service-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
                padding: 24px 20px;
            }
            .service-card-thumb {
                width: 100%;
                height: 140px;
                object-fit: cover;
                border-radius: var(--radius-sm);
            }
            .results-compare {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .compare-divider {
                display: none;
            }
            .compare-panel {
                padding: 24px 18px;
            }
            .compare-metric {
                font-size: 26px;
            }
            .cta-headline {
                font-size: 22px;
            }
            .faq-question {
                padding: 16px 14px;
                gap: 10px;
            }
            .faq-q-text {
                font-size: 15px;
            }
            .faq-answer-inner {
                padding: 0 14px 16px 50px;
                font-size: 14px;
            }
            .scroll-down-indicator {
                bottom: 100px;
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 26px;
                letter-spacing: 0.01em;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .hero-data-value {
                font-size: 24px;
            }
            .hero-data-label {
                font-size: 11px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-value {
                font-size: 26px;
            }
            .stat-label {
                font-size: 12px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .service-card-body h3 {
                font-size: 17px;
            }
            .compare-metric {
                font-size: 22px;
            }
            .cta-headline {
                font-size: 20px;
            }
            .footer-links {
                gap: 14px;
            }
        }

        /* ============ 通用辅助 ============ */
        .text-green {
            color: var(--accent-green);
        }
        .text-orange {
            color: var(--accent-orange);
        }
        .text-muted {
            color: var(--text-muted);
        }
        .mt-0 {
            margin-top: 0;
        }