/* roulang page: index */
:root {
            --color-bg-0: #080E1A;
            --color-bg-card: rgba(10, 20, 40, 0.6);
            --color-brand: #0066FF;
            --color-brand-light: #00A6FF;
            --color-accent: #FF4D00;
            --color-accent-glow: rgba(255, 77, 0, 0.6);
            --color-text: rgba(255, 255, 255, 0.92);
            --color-text-weak: rgba(255, 255, 255, 0.65);
            --color-text-muted: rgba(255, 255, 255, 0.4);
            --glass-bg: rgba(10, 20, 40, 0.6);
            --glass-border: rgba(0, 150, 255, 0.25);
            --glass-border-light: rgba(255, 255, 255, 0.12);
            --glass-blur: blur(24px);
            --card-radius: 20px;
            --btn-radius: 30px;
            --tag-radius: 12px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.08);
            --shadow-glow-blue: 0 0 18px rgba(0, 102, 255, 0.7);
            --shadow-glow-orange: 0 0 22px rgba(255, 77, 0, 0.65);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
            --font-mono: 'SF Mono', 'Menlo', 'Consolas', 'Courier New', monospace;
            --nav-height: 72px;
            --container-max: 1200px;
            --container-padding: 24px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--nav-height);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg-0);
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.02em;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
            width: 100%;
        }

        /* ============ 导航 ============ */
        .nav-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(8, 14, 26, 0.72);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }

        .nav-header.scrolled {
            background: rgba(8, 14, 26, 0.9);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
            border-bottom: 1px solid rgba(0, 150, 255, 0.2);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 22px;
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            width: 38px;
            height: 38px;
            position: relative;
            flex-shrink: 0;
        }

        .nav-logo-icon svg {
            width: 100%;
            height: 100%;
        }

        .nav-logo-text {
            background: linear-gradient(135deg, #0066FF 0%, #00C2FF 50%, #ffffff 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.03em;
        }

        .nav-links a {
            color: rgba(255, 255, 255, 0.82);
            position: relative;
            padding: 6px 2px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-brand-light);
            border-radius: 1px;
            box-shadow: 0 0 10px rgba(0, 166, 255, 0.7);
            transition: width var(--transition-smooth);
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: #fff;
        }

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .btn-nav-download {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.04em;
            white-space: nowrap;
            background: linear-gradient(135deg, #FF4D00 0%, #FF7B30 100%);
            color: #fff;
            box-shadow: 0 0 16px rgba(255, 77, 0, 0.5);
            transition: all var(--transition-smooth);
            flex-shrink: 0;
        }

        .btn-nav-download:hover {
            box-shadow: 0 0 28px rgba(255, 77, 0, 0.8);
            transform: scale(1.04);
            color: #fff;
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
            background: none;
            border: none;
        }

        .nav-hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }

        .nav-hamburger.active span:nth-child(1) {
            transform: translateY(8.5px) rotate(45deg);
        }
        .nav-hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .nav-hamburger.active span:nth-child(3) {
            transform: translateY(-8.5px) rotate(-45deg);
        }

        .nav-mobile-panel {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(8, 14, 26, 0.9);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            border-bottom: 1px solid rgba(0, 150, 255, 0.2);
            padding: 28px 0;
            z-index: 999;
            flex-direction: column;
            align-items: center;
            gap: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
        }

        .nav-mobile-panel.open {
            display: flex;
        }

        .nav-mobile-panel a {
            font-size: 18px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.85);
            padding: 8px 24px;
            transition: color var(--transition-fast);
        }

        .nav-mobile-panel a:hover {
            color: var(--color-brand-light);
        }

        .nav-mobile-panel .btn-nav-download {
            margin-top: 8px;
            padding: 12px 32px;
            font-size: 16px;
        }

        /* ============ Hero ============ */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            padding: calc(var(--nav-height) + 40px) 0 60px;
            background: var(--color-bg-0);
        }

        .hero-bg-image {
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.35;
        }

        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 80, 200, 0.25) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(255, 77, 0, 0.15) 0%, transparent 50%),
                linear-gradient(180deg, rgba(8, 14, 26, 0.4) 0%, rgba(8, 14, 26, 0.85) 70%, rgba(8, 14, 26, 0.95) 100%);
            pointer-events: none;
        }

        .speed-lines {
            position: absolute;
            inset: 0;
            z-index: 2;
            pointer-events: none;
            overflow: hidden;
        }

        .speed-line {
            position: absolute;
            height: 1.5px;
            background: linear-gradient(90deg, transparent, rgba(0, 166, 255, 0.6), rgba(255, 255, 255, 0.8), rgba(0, 166, 255, 0.3), transparent);
            border-radius: 2px;
            animation: speedLineMove linear infinite;
            opacity: 0;
        }

        .speed-line:nth-child(1) {
            top: 15%;
            width: 280px;
            animation-duration: 3.2s;
            animation-delay: 0s;
            left: -300px;
        }
        .speed-line:nth-child(2) {
            top: 28%;
            width: 200px;
            animation-duration: 2.6s;
            animation-delay: 0.8s;
            left: -220px;
        }
        .speed-line:nth-child(3) {
            top: 42%;
            width: 340px;
            animation-duration: 3.8s;
            animation-delay: 1.5s;
            left: -360px;
        }
        .speed-line:nth-child(4) {
            top: 55%;
            width: 180px;
            animation-duration: 2.2s;
            animation-delay: 0.4s;
            left: -200px;
        }
        .speed-line:nth-child(5) {
            top: 68%;
            width: 260px;
            animation-duration: 3s;
            animation-delay: 2s;
            left: -280px;
        }
        .speed-line:nth-child(6) {
            top: 78%;
            width: 310px;
            animation-duration: 3.5s;
            animation-delay: 1.1s;
            left: -330px;
        }
        .speed-line:nth-child(7) {
            top: 35%;
            width: 150px;
            animation-duration: 2.8s;
            animation-delay: 2.6s;
            left: -170px;
        }
        .speed-line:nth-child(8) {
            top: 62%;
            width: 230px;
            animation-duration: 3.1s;
            animation-delay: 0.2s;
            left: -250px;
        }

        @keyframes speedLineMove {
            0% {
                transform: translateX(0);
                opacity: 0;
            }
            15% {
                opacity: 0.7;
            }
            40% {
                opacity: 0.5;
            }
            75% {
                opacity: 0.1;
            }
            100% {
                transform: translateX(calc(100vw + 600px));
                opacity: 0;
            }
        }

        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 780px;
            padding: 0 20px;
        }

        .hero-badge {
            display: inline-block;
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: #fff;
            background: rgba(0, 102, 255, 0.3);
            border: 1px solid rgba(0, 150, 255, 0.4);
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: clamp(32px, 5.5vw, 52px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
            text-shadow: 0 0 60px rgba(0, 150, 255, 0.4), 0 4px 20px rgba(0, 0, 0, 0.5);
            color: #ffffff;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, #00A6FF 0%, #ffffff 60%, #FF6B3D 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .hero-subtitle {
            font-size: clamp(16px, 2.2vw, 20px);
            font-weight: 500;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 36px;
            letter-spacing: 0.04em;
            line-height: 1.6;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn-primary-glow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 16px 36px;
            border-radius: 30px;
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.05em;
            color: #fff;
            background: linear-gradient(135deg, #0066FF 0%, #00A6FF 100%);
            box-shadow: 0 0 22px rgba(0, 102, 255, 0.7), 0 4px 16px rgba(0, 0, 0, 0.4);
            transition: all var(--transition-smooth);
            animation: pulseGlow 2.4s ease-in-out infinite;
            position: relative;
            overflow: hidden;
        }

        .btn-primary-glow::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 60%);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .btn-primary-glow:hover {
            box-shadow: 0 0 40px rgba(0, 102, 255, 1), 0 8px 28px rgba(0, 0, 0, 0.5);
            transform: scale(1.06);
        }
        .btn-primary-glow:hover::before {
            opacity: 1;
        }

        @keyframes pulseGlow {
            0%,
            100% {
                box-shadow: 0 0 22px rgba(0, 102, 255, 0.7), 0 4px 16px rgba(0, 0, 0, 0.4);
            }
            50% {
                box-shadow: 0 0 38px rgba(0, 102, 255, 1), 0 6px 24px rgba(0, 0, 0, 0.5);
            }
        }

        .btn-secondary-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 15px 34px;
            border-radius: 30px;
            font-size: 17px;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: #fff;
            background: transparent;
            border: 2px solid rgba(0, 150, 255, 0.55);
            box-shadow: 0 0 10px rgba(0, 102, 255, 0.2);
            transition: all var(--transition-smooth);
        }

        .btn-secondary-outline:hover {
            border-color: #00A6FF;
            box-shadow: 0 0 24px rgba(0, 102, 255, 0.5);
            background: rgba(0, 102, 255, 0.08);
            transform: scale(1.03);
        }

        /* ============ 通用区块 ============ */
        .section {
            padding: 80px 0;
            position: relative;
        }

        .section-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-brand-light);
            margin-bottom: 12px;
            background: rgba(0, 102, 255, 0.12);
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid rgba(0, 150, 255, 0.2);
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: clamp(26px, 3.8vw, 38px);
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
            line-height: 1.25;
            color: #ffffff;
        }

        .section-desc {
            font-size: 16px;
            color: var(--color-text-weak);
            max-width: 600px;
            line-height: 1.7;
        }

        /* ============ 解决方案 ============ */
        .solutions-section {
            background: var(--color-bg-0);
            position: relative;
        }

        .solutions-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 150, 255, 0.3), transparent);
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 0.85fr;
            gap: 24px;
            margin-top: 48px;
            align-items: stretch;
        }

        .solutions-left-stack {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .solution-card {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            padding: 28px 28px 24px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .solution-card:hover {
            border-color: rgba(0, 166, 255, 0.5);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 0 30px rgba(0, 102, 255, 0.15);
            transform: translateY(-2px);
        }

        .solution-card-icon {
            width: 48px;
            height: 48px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            background: rgba(0, 102, 255, 0.15);
            color: var(--color-brand-light);
        }

        .solution-card-icon svg {
            width: 26px;
            height: 26px;
        }

        .solution-card-title {
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
            letter-spacing: 0.03em;
        }

        .solution-card-desc {
            font-size: 14px;
            color: var(--color-text-weak);
            line-height: 1.6;
        }

        .solution-card-image {
            width: 100%;
            border-radius: 12px;
            margin-top: 16px;
            overflow: hidden;
        }

        .solution-card-image img {
            width: 100%;
            height: auto;
            border-radius: 12px;
            transition: transform var(--transition-smooth);
        }

        .solution-card:hover .solution-card-image img {
            transform: scale(1.03);
        }

        .solution-data-card {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            padding: 32px 24px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .solution-data-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(0, 166, 255, 0.6), var(--color-accent), rgba(0, 166, 255, 0.6), transparent);
            opacity: 0.7;
        }

        .solution-data-card:hover {
            border-color: rgba(0, 166, 255, 0.5);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 0 30px rgba(0, 102, 255, 0.15);
        }

        .solution-data-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .solution-data-item:last-child {
            border-bottom: none;
        }

        .solution-data-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-brand-light);
            flex-shrink: 0;
            box-shadow: 0 0 8px rgba(0, 166, 255, 0.7);
        }

        .solution-data-num {
            font-family: var(--font-mono);
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            flex-shrink: 0;
            min-width: 70px;
        }

        .solution-data-label {
            font-size: 14px;
            color: var(--color-text-weak);
            line-height: 1.4;
        }

        /* ============ 成果展示 ============ */
        .stats-section {
            background: var(--color-bg-0);
            position: relative;
            overflow: hidden;
        }

        .stats-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.18;
        }

        .stats-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: radial-gradient(ellipse at center, rgba(0, 60, 160, 0.2) 0%, transparent 65%),
                linear-gradient(180deg, rgba(8, 14, 26, 0.7) 0%, rgba(8, 14, 26, 0.9) 100%);
            pointer-events: none;
        }

        .stats-inner {
            position: relative;
            z-index: 2;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 48px;
        }

        .stat-item {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: 12px;
            padding: 28px 20px;
            text-align: center;
            clip-path: polygon(6% 0%, 100% 0%, 94% 100%, 0% 100%);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .stat-item:hover {
            border-color: rgba(0, 166, 255, 0.55);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5), 0 0 28px rgba(0, 102, 255, 0.2);
            transform: translateY(-3px);
        }

        .stat-number {
            font-family: var(--font-mono);
            font-size: clamp(32px, 4vw, 46px);
            font-weight: 800;
            letter-spacing: 0.02em;
            background: linear-gradient(135deg, #00A6FF 0%, #ffffff 50%, #00C2FF 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
            text-shadow: 0 0 30px rgba(0, 166, 255, 0.5);
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 13px;
            color: var(--color-text-weak);
            letter-spacing: 0.04em;
            font-weight: 500;
        }

        /* ============ 客户证言 ============ */
        .testimonials-section {
            background: var(--color-bg-0);
            position: relative;
            overflow: hidden;
        }

        .testimonials-scroll {
            display: flex;
            gap: 24px;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            padding: 20px 0 30px;
            margin-top: 40px;
            scrollbar-width: thin;
            scrollbar-color: rgba(0, 150, 255, 0.3) transparent;
        }

        .testimonials-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .testimonials-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .testimonials-scroll::-webkit-scrollbar-thumb {
            background: rgba(0, 150, 255, 0.3);
            border-radius: 3px;
        }

        .testimonial-card {
            flex: 0 0 340px;
            max-width: 360px;
            scroll-snap-align: start;
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            padding: 28px 24px;
            transition: all var(--transition-smooth);
            position: relative;
        }

        .testimonial-card:hover {
            border-color: rgba(0, 166, 255, 0.5);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 0 30px rgba(0, 102, 255, 0.2);
            transform: translateY(-3px);
        }

        .testimonial-quote-mark {
            font-size: 80px;
            line-height: 1;
            color: rgba(0, 150, 255, 0.2);
            font-family: serif;
            position: absolute;
            top: 10px;
            left: 20px;
            pointer-events: none;
            user-select: none;
        }

        .testimonial-stars {
            display: flex;
            gap: 3px;
            margin-bottom: 14px;
            color: #FFB800;
            font-size: 16px;
        }

        .testimonial-text {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            letter-spacing: 0.04em;
            background: linear-gradient(135deg, #0066FF, #00A6FF);
        }

        .testimonial-avatar.a2 {
            background: linear-gradient(135deg, #FF4D00, #FF7B30);
        }
        .testimonial-avatar.a3 {
            background: linear-gradient(135deg, #5E3FDB, #8B6FFF);
        }

        .testimonial-name {
            font-weight: 700;
            font-size: 15px;
            color: #fff;
            letter-spacing: 0.03em;
        }

        .testimonial-tag {
            font-size: 12px;
            color: var(--color-text-muted);
            letter-spacing: 0.04em;
            margin-top: 2px;
        }

        .testimonial-card-image {
            width: 100%;
            border-radius: 10px;
            margin-top: 14px;
            overflow: hidden;
        }

        .testimonial-card-image img {
            width: 100%;
            height: auto;
            border-radius: 10px;
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--color-bg-0);
            position: relative;
        }

        .faq-list {
            margin-top: 40px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
        }

        .faq-item {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border-light);
            border-radius: 16px;
            overflow: hidden;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: rgba(0, 150, 255, 0.35);
        }

        .faq-item.open {
            border-color: rgba(0, 150, 255, 0.5);
            box-shadow: 0 0 20px rgba(0, 102, 255, 0.15);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            letter-spacing: 0.03em;
            gap: 16px;
            user-select: none;
        }

        .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 102, 255, 0.2);
            color: var(--color-brand-light);
            font-size: 18px;
            font-weight: 700;
            transition: all var(--transition-smooth);
            border: 1px solid rgba(0, 150, 255, 0.25);
        }

        .faq-item.open .faq-icon {
            background: rgba(255, 77, 0, 0.25);
            color: var(--color-accent);
            border-color: rgba(255, 77, 0, 0.4);
            transform: rotate(45deg);
            box-shadow: 0 0 14px rgba(255, 77, 0, 0.4);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.35s ease;
            padding: 0 24px;
            color: var(--color-text-weak);
            font-size: 15px;
            line-height: 1.7;
            background: rgba(255, 255, 255, 0.015);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ============ CTA区块 ============ */
        .cta-section {
            background: var(--color-bg-0);
            position: relative;
            overflow: hidden;
            padding: 100px 0;
            text-align: center;
        }

        .cta-bg-image {
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.3;
        }

        .cta-glow-wave {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 102, 255, 0.35) 0%, transparent 50%),
                radial-gradient(ellipse at 65% 40%, rgba(255, 77, 0, 0.25) 0%, transparent 45%),
                radial-gradient(ellipse at 50% 60%, rgba(0, 166, 255, 0.2) 0%, transparent 40%);
            pointer-events: none;
            animation: wavePulse 4s ease-in-out infinite;
        }

        @keyframes wavePulse {
            0%,
            100% {
                opacity: 0.7;
            }
            50% {
                opacity: 1;
            }
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .cta-title {
            font-family: var(--font-heading);
            font-size: clamp(28px, 4.2vw, 40px);
            font-weight: 800;
            letter-spacing: 0.03em;
            color: #fff;
            margin-bottom: 32px;
            line-height: 1.25;
        }

        .btn-cta-huge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 20px 48px;
            border-radius: 40px;
            font-size: 19px;
            font-weight: 700;
            letter-spacing: 0.05em;
            color: #fff;
            background: linear-gradient(135deg, #0066FF 0%, #00A6FF 100%);
            box-shadow: 0 0 30px rgba(0, 102, 255, 0.8), 0 8px 28px rgba(0, 0, 0, 0.5);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .btn-cta-huge::before {
            content: '';
            position: absolute;
            top: -60%;
            left: -60%;
            width: 220%;
            height: 220%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.25) 0%, transparent 55%);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .btn-cta-huge:hover {
            box-shadow: 0 0 50px rgba(0, 102, 255, 1.1), 0 12px 36px rgba(0, 0, 0, 0.6);
            transform: scale(1.07);
        }
        .btn-cta-huge:hover::before {
            opacity: 1;
        }

        .cta-sub-note {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-top: 18px;
            letter-spacing: 0.04em;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--color-bg-0);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 32px 0;
            position: relative;
        }

        .footer-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.04em;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-copyright {
            font-size: 13px;
            color: var(--color-text-muted);
            letter-spacing: 0.03em;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .solutions-grid {
                grid-template-columns: 1fr 1fr;
            }
            .solution-data-card {
                grid-column: 1 / -1;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item {
                clip-path: polygon(4% 0%, 100% 0%, 96% 100%, 0% 100%);
            }
            .testimonial-card {
                flex: 0 0 300px;
                max-width: 320px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .btn-nav-download.desktop-only {
                display: none;
            }
            .nav-header .btn-nav-download {
                display: none;
            }
            .nav-mobile-panel .btn-nav-download {
                display: inline-flex;
            }

            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn-primary-glow,
            .hero-cta-group .btn-secondary-outline {
                width: 100%;
                justify-content: center;
                text-align: center;
            }

            .solutions-grid {
                grid-template-columns: 1fr;
            }
            .solution-data-card {
                grid-column: auto;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                clip-path: polygon(3% 0%, 100% 0%, 97% 100%, 0% 100%);
                padding: 20px 14px;
            }
            .stat-number {
                font-size: 28px;
            }
            .testimonials-scroll {
                gap: 16px;
            }
            .testimonial-card {
                flex: 0 0 280px;
                max-width: 300px;
                padding: 20px 18px;
            }
            .section {
                padding: 56px 0;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-icon {
                width: 28px;
                height: 28px;
                font-size: 16px;
            }
            .btn-cta-huge {
                padding: 16px 32px;
                font-size: 17px;
                width: 100%;
                justify-content: center;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 28px;
                letter-spacing: 0.02em;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-badge {
                font-size: 11px;
                padding: 6px 14px;
            }
            .section-title {
                font-size: 22px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .stat-item {
                clip-path: polygon(2% 0%, 100% 0%, 98% 100%, 0% 100%);
            }
            .testimonial-card {
                flex: 0 0 260px;
                max-width: 280px;
            }
            .solution-card {
                padding: 20px 16px;
            }
            .solution-data-card {
                padding: 22px 16px;
            }
            .solution-data-num {
                font-size: 22px;
                min-width: 55px;
            }
            .nav-logo {
                font-size: 18px;
            }
            .nav-logo-icon {
                width: 30px;
                height: 30px;
            }
            .btn-primary-glow,
            .btn-secondary-outline {
                padding: 13px 22px;
                font-size: 15px;
            }
        }