/* roulang page: index */
:root {
            --color-primary: #00D9C0;
            --color-secondary: #7C5CFF;
            --color-accent: #FFB82E;
            --color-dark: #0D0F17;
            --color-deeper: #0B0E16;
            --color-card: #111625;
            --color-card-light: #1A2130;
            --color-bg-light: #F6F8FC;
            --color-card-white: #FFFFFF;
            --color-text-dark: #0D0F17;
            --color-text-gray: #6B7280;
            --color-border: #E5E7EB;
            --shadow-card: 0 8px 30px rgba(2, 8, 20, 0.08);
            --shadow-card-hover: 0 16px 40px rgba(124, 92, 255, 0.15);
            --shadow-dark-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --radius-large: 16px;
            --radius-xlarge: 24px;
            --radius-full: 9999px;
            --transition-fast: all 0.2s ease;
            --transition-normal: all 0.3s ease;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            background-color: var(--color-bg-light);
            color: var(--color-text-dark);
            line-height: 1.75;
            font-size: 16px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-fast);
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 14px;
            transition: var(--transition-fast);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        .section {
            padding-top: 80px;
            padding-bottom: 80px;
        }
        @media (max-width: 768px) {
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }
        }
        .h1 {
            font-size: clamp(2.25rem, 4vw, 3.25rem);
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: -0.02em;
        }
        .h2 {
            font-size: clamp(1.75rem, 2.5vw, 2.25rem);
            line-height: 1.2;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        .h3 {
            font-size: 1.25rem;
            line-height: 1.4;
            font-weight: 600;
        }
        .body-text {
            font-size: 1rem;
            line-height: 1.75;
        }
        .text-small {
            font-size: 0.875rem;
        }
        .text-tag {
            font-size: 0.75rem;
        }
        .font-number {
            font-family: "Inter", "DIN Alternate", "Roboto Mono", monospace;
        }
        /* ===== 导航栏 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 15, 23, 0.9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: 64px;
            border-bottom: 1px solid transparent;
            background-image: linear-gradient(rgba(13, 15, 23, 0.9), rgba(13, 15, 23, 0.9)),
                linear-gradient(90deg, transparent, #00D9C0, #7C5CFF, transparent);
            background-origin: border-box;
            background-clip: padding-box, border-box;
        }
        .header-inner {
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #00D9C0, #7C5CFF);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 0 16px rgba(0, 217, 192, 0.3);
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-link {
            font-size: 14px;
            color: #A0AEC0;
            position: relative;
            padding: 6px 2px;
            font-weight: 500;
            transition: var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: #fff;
        }
        .nav-link.active {
            color: #fff;
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: #00D9C0;
            box-shadow: 0 2px 8px rgba(0, 217, 192, 0.6);
            border-radius: 2px;
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 9999px;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, #00D9C0, #7C5CFF);
            transition: var(--transition-fast);
            border: none;
            line-height: 1.4;
            white-space: nowrap;
        }
        .btn-primary:hover {
            box-shadow: 0 0 20px rgba(0, 217, 192, 0.4);
            filter: brightness(1.1);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: scale(0.95);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 9999px;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 500;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: transparent;
            transition: var(--transition-fast);
            line-height: 1.4;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            border-color: #00D9C0;
            background: rgba(0, 217, 192, 0.1);
            box-shadow: 0 0 16px rgba(0, 217, 192, 0.15);
        }
        .btn-secondary:active {
            transform: scale(0.95);
        }
        .btn-lg {
            padding: 14px 36px;
            font-size: 1rem;
        }
        /* 移动端汉堡 */
        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: #fff;
            font-size: 20px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.05);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: rgba(13, 15, 23, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 16px 24px 24px;
            border-bottom: 1px solid rgba(0, 217, 192, 0.2);
            z-index: 99;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu .mobile-nav-link {
            display: block;
            padding: 12px 8px;
            font-size: 16px;
            color: #A0AEC0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition-fast);
        }
        .mobile-menu .mobile-nav-link:hover,
        .mobile-menu .mobile-nav-link.active {
            color: #00D9C0;
            padding-left: 16px;
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .header-cta .btn-primary {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
        }
        /* ===== Hero 区域 ===== */
        .hero-section {
            position: relative;
            min-height: 90vh;
            display: flex;
            align-items: center;
            background-color: #0D0F17;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to right, rgba(0, 0, 0, 0.82), rgba(0, 0, 0, 0.6), transparent);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(124, 92, 255, 0.25), transparent 70%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding-top: 60px;
            padding-bottom: 60px;
        }
        .hero-badge-line {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(17, 22, 37, 0.8);
            border: 1px solid rgba(124, 92, 255, 0.6);
            border-radius: 9999px;
            padding: 6px 16px;
            font-size: 13px;
            color: #A0AEC0;
            backdrop-filter: blur(8px);
        }
        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #00D9C0;
            box-shadow: 0 0 8px rgba(0, 217, 192, 0.8);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% {
                opacity: 1;
                box-shadow: 0 0 8px rgba(0, 217, 192, 0.8);
            }
            50% {
                opacity: 0.6;
                box-shadow: 0 0 16px rgba(0, 217, 192, 0.4);
            }
        }
        .hero-title {
            font-size: clamp(2.5rem, 5vw, 4rem);
            line-height: 1.15;
            font-weight: 800;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
        .gradient-text {
            background: linear-gradient(135deg, #00D9C0, #7C5CFF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: #A0AEC0;
            max-width: 520px;
            margin-bottom: 32px;
            line-height: 1.7;
            border-left: 3px solid #00D9C0;
            padding-left: 16px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }
        .hero-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .stat-badge {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 4px;
            background: rgba(17, 22, 37, 0.8);
            border: 1px solid rgba(124, 92, 255, 0.4);
            border-radius: 16px;
            padding: 16px 24px;
            min-width: 140px;
            backdrop-filter: blur(8px);
            transition: var(--transition-fast);
        }
        .stat-badge:hover {
            border-color: rgba(0, 217, 192, 0.6);
            box-shadow: 0 0 20px rgba(0, 217, 192, 0.1);
            transform: translateY(-2px);
        }
        .stat-number {
            font-family: "Inter", "DIN Alternate", "Roboto Mono", monospace;
            font-size: 1.75rem;
            font-weight: 700;
            color: #FFB82E;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 13px;
            color: #A0AEC0;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .stat-label .mini-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #00D9C0;
        }
        @media (max-width: 768px) {
            .hero-section {
                min-height: auto;
                padding: 40px 0;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .stat-badge {
                min-width: 120px;
                padding: 12px 16px;
            }
            .stat-number {
                font-size: 1.4rem;
            }
        }
        /* ===== 时间线 ===== */
        .timeline-section {
            padding: 80px 0;
            background: #F6F8FC;
        }
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 217, 192, 0.1);
            border: 1px solid rgba(0, 217, 192, 0.3);
            color: #00A68F;
            border-radius: 9999px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 16px;
        }
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding-left: 40px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 14px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, #00D9C0, #7C5CFF);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 40px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: -40px;
            top: 24px;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: #111625;
            border: 3px solid #00D9C0;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 12px rgba(0, 217, 192, 0.5);
            font-size: 11px;
            font-weight: 700;
            color: #00D9C0;
            font-family: "Inter", "DIN Alternate", "Roboto Mono", monospace;
        }
        .timeline-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(229, 231, 235, 0.8);
            transition: var(--transition-normal);
        }
        .timeline-card:hover {
            border-color: #00D9C0;
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }
        .timeline-step-label {
            font-size: 12px;
            font-weight: 600;
            color: #7C5CFF;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            font-family: "Inter", "Roboto Mono", monospace;
        }
        .timeline-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: #111625;
            margin-bottom: 8px;
            margin-top: 4px;
        }
        .timeline-card p {
            font-size: 14px;
            color: #6B7280;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .timeline {
                padding-left: 36px;
            }
            .timeline-dot {
                left: -36px;
                width: 26px;
                height: 26px;
                font-size: 10px;
            }
            .timeline-card {
                padding: 20px;
            }
        }
        /* ===== 双列大卡 ===== */
        .features-section {
            background: #F6F8FC;
            position: relative;
        }
        .features-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        @media (max-width: 992px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }
        .feature-card {
            background: #fff;
            border-radius: 24px;
            padding: 40px;
            border: 1px solid rgba(229, 231, 235, 0.8);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
            transition: var(--transition-normal);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(124, 92, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #7C5CFF;
            margin-bottom: 24px;
            border: 1px solid rgba(124, 92, 255, 0.2);
        }
        .feature-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: #111625;
            margin-bottom: 12px;
        }
        .feature-card p {
            font-size: 15px;
            color: #6B7280;
            line-height: 1.7;
        }
        .feature-card.feature-wide {
            grid-column: span 2;
            background: #111625;
            border-color: rgba(124, 92, 255, 0.2);
        }
        .feature-card.feature-wide h3 {
            color: #fff;
            font-size: 1.75rem;
        }
        .feature-card.feature-wide p {
            color: #A0AEC0;
            font-size: 15px;
            max-width: 600px;
        }
        .feature-wide-content {
            display: flex;
            gap: 40px;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .feature-wide-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .wide-stat-item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: 16px;
            padding: 16px 24px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
        }
        .wide-stat-number {
            font-family: "Inter", "DIN Alternate", "Roboto Mono", monospace;
            font-size: 2rem;
            font-weight: 700;
            color: #FFB82E;
        }
        .wide-stat-label {
            font-size: 13px;
            color: #A0AEC0;
            margin-top: 4px;
            display: block;
        }
        @media (max-width: 768px) {
            .feature-card {
                padding: 28px 24px;
            }
            .feature-card.feature-wide {
                grid-column: span 1;
            }
            .feature-wide-content {
                flex-direction: column;
                gap: 20px;
            }
        }
        /* ===== 三列对比卡(错位) ===== */
        .compare-section {
            background: #F6F8FC;
            padding-bottom: 100px;
        }
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
            align-items: start;
        }
        @media (max-width: 992px) {
            .compare-grid {
                grid-template-columns: 1fr;
            }
        }
        .compare-card {
            background: #fff;
            border-radius: 16px;
            padding: 32px 28px;
            border: 1px solid rgba(229, 231, 235, 0.8);
            box-shadow: var(--shadow-card);
            position: relative;
            transition: var(--transition-normal);
        }
        .compare-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .compare-card.recommended {
            background: #111625;
            border: 1px solid rgba(0, 217, 192, 0.5);
            box-shadow: 0 0 30px rgba(0, 217, 192, 0.08);
            padding: 40px 28px;
        }
        .compare-recommend-tag {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, #00D9C0, #7C5CFF);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 9999px;
            box-shadow: 0 4px 12px rgba(0, 217, 192, 0.3);
            white-space: nowrap;
        }
        .compare-type {
            text-align: center;
            margin-bottom: 24px;
        }
        .compare-type .type-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            margin: 0 auto 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .compare-type h3 {
            font-size: 1.25rem;
            font-weight: 700;
        }
        .compare-list {
            list-style: none;
            margin-top: 20px;
        }
        .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 14px;
            color: #6B7280;
            border-bottom: 1px solid rgba(229, 231, 235, 0.6);
        }
        .compare-card.recommended .compare-list li {
            color: #A0AEC0;
            border-color: rgba(255, 255, 255, 0.06);
        }
        .compare-list li:last-child {
            border-bottom: none;
        }
        .compare-list .check-icon {
            color: #00D9C0;
            font-size: 14px;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .compare-list .item-label {
            font-weight: 600;
            color: #111625;
            margin-right: 6px;
            flex-shrink: 0;
        }
        .compare-card.recommended .compare-list .item-label {
            color: #fff;
        }
        .compare-cta {
            text-align: center;
            margin-top: 24px;
        }
        @media (max-width: 992px) {
            .compare-card.recommended {
                margin-top: 12px;
                padding: 32px 24px;
            }
        }
        /* ===== CTA 区块 ===== */
        .cta-section {
            background: #0D0F17;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, #00D9C0, #7C5CFF, transparent);
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(124, 92, 255, 0.15), transparent 70%);
            pointer-events: none;
        }
        .cta-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        @media (max-width: 992px) {
            .cta-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }
        }
        .cta-content h2 {
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-content p {
            color: #A0AEC0;
            font-size: 15px;
            margin-bottom: 16px;
            max-width: 440px;
        }
        .cta-list {
            list-style: none;
            margin-top: 16px;
        }
        .cta-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #A0AEC0;
            font-size: 14px;
            padding: 4px 0;
        }
        .cta-list i {
            color: #00D9C0;
            font-size: 14px;
        }
        .cta-form-wrapper {
            background: #111625;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 24px;
            padding: 32px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
        }
        .form-grid {
            display: grid;
            gap: 20px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            color: #A0AEC0;
            margin-bottom: 8px;
            font-weight: 500;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 12px;
            padding: 12px 16px;
            color: #fff;
            outline: none;
            transition: var(--transition-fast);
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: #00D9C0;
            box-shadow: 0 0 0 3px rgba(0, 217, 192, 0.2);
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #718096;
        }
        .form-group select option {
            background: #111625;
            color: #fff;
        }
        .form-grid .full-width {
            grid-column: span 1;
        }
        @media (max-width: 768px) {
            .cta-form-wrapper {
                padding: 24px;
            }
        }
        /* ===== 最新资讯板块 ===== */
        .news-section {
            background: #F6F8FC;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
        }
        .news-card {
            display: flex;
            gap: 24px;
            background: #fff;
            border-radius: 16px;
            padding: 20px;
            border: 1px solid rgba(229, 231, 235, 0.8);
            box-shadow: var(--shadow-card);
            transition: var(--transition-normal);
            align-items: center;
        }
        .news-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateX(4px);
            border-color: rgba(0, 217, 192, 0.4);
        }
        .news-thumb {
            width: 160px;
            height: 110px;
            border-radius: 12px;
            object-fit: cover;
            flex-shrink: 0;
            background: #E5E7EB;
        }
        .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: #111625;
            margin-bottom: 8px;
            line-height: 1.4;
            transition: var(--transition-fast);
        }
        .news-card:hover .news-content h3 {
            color: #00A68F;
        }
        .news-content p {
            font-size: 14px;
            color: #6B7280;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: #9CA3AF;
        }
        .news-tag {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 9999px;
            background: #E8F8F5;
            color: #00A68F;
            font-weight: 500;
        }
        .news-date {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .news-date i {
            font-size: 12px;
        }
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: #9CA3AF;
            background: #fff;
            border-radius: 16px;
            border: 1px dashed #D1D5DB;
        }
        .empty-state i {
            font-size: 32px;
            color: #D1D5DB;
            margin-bottom: 12px;
            display: block;
        }
        @media (max-width: 768px) {
            .news-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
            }
            .news-thumb {
                width: 100%;
                height: 180px;
            }
        }
        /* ===== FAQ ===== */
        .faq-section {
            background: #F6F8FC;
        }
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: 16px;
            margin-bottom: 12px;
            overflow: hidden;
            border: 1px solid rgba(229, 231, 235, 0.8);
            transition: var(--transition-fast);
        }
        .faq-item:hover {
            border-color: rgba(0, 217, 192, 0.4);
        }
        .faq-item.active {
            border-color: rgba(0, 217, 192, 0.5);
            box-shadow: 0 4px 20px rgba(0, 217, 192, 0.08);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: #111625;
            transition: var(--transition-fast);
        }
        .faq-question:hover {
            color: #00A68F;
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #F3F4F6;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #6B7280;
            transition: var(--transition-fast);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(0, 217, 192, 0.1);
            color: #00A68F;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding-bottom: 20px;
        }
        .faq-answer p {
            font-size: 14px;
            color: #6B7280;
            line-height: 1.7;
            border-left: 2px solid #00D9C0;
            padding-left: 16px;
        }
        /* ===== 页脚 ===== */
        .site-footer {
            background: #0B0E16;
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-desc {
            font-size: 14px;
            color: #A0AEC0;
            max-width: 300px;
            line-height: 1.7;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            font-size: 14px;
            color: #A0AEC0;
            transition: var(--transition-fast);
            position: relative;
        }
        .footer-links a:hover {
            color: #00D9C0;
            padding-left: 6px;
        }
        .footer-contact {
            list-style: none;
        }
        .footer-contact li {
            font-size: 14px;
            color: #A0AEC0;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact i {
            color: #00D9C0;
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 12px;
            color: #718096;
        }
        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar {
            width: 10px;
            height: 10px;
        }
        ::-webkit-scrollbar-track {
            background: #F6F8FC;
        }
        ::-webkit-scrollbar-thumb {
            background: #CBD5E0;
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #A0AEC0;
        }
        /* ===== 辅助 class ===== */
        .text-gradient {
            background: linear-gradient(135deg, #00D9C0, #7C5CFF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .card-icon-purple {
            display: inline-flex;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(124, 92, 255, 0.12);
            color: #7C5CFF;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 16px;
        }
        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 9999px;
            font-size: 15px;
            font-weight: 500;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition-fast);
        }
        .btn-ghost-light:hover {
            border-color: #00D9C0;
            background: rgba(0, 217, 192, 0.1);
            box-shadow: 0 0 20px rgba(0, 217, 192, 0.15);
        }

/* roulang page: category1 */
:root {
            --primary: #00D9C0;
            --secondary: #7C5CFF;
            --accent: #FFB82E;
            --dark-bg: #0B0F19;
            --dark-card: #1A2130;
            --dark-card-hover: #212A3A;
            --light-bg: #F6F8FC;
            --white: #FFFFFF;
            --text-dark: #111625;
            --text-gray: #A0AEC0;
            --text-light: #E2E8F0;
            --border-light: #EDF2F7;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-full: 9999px;
            --shadow-card: 0 8px 30px rgba(2, 8, 20, 0.08);
            --shadow-card-hover: 0 16px 40px rgba(124, 92, 255, 0.15);
            --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.35);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            background-color: var(--light-bg);
            color: var(--text-dark);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

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

        input,
        select,
        textarea {
            font-family: inherit;
        }

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

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* === 导航 === */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(13, 18, 32, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            background-image: linear-gradient(90deg, transparent, var(--primary), var(--secondary), transparent);
            background-position: bottom;
            background-size: 100% 1px;
            background-repeat: no-repeat;
            height: 64px;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 14px;
            box-shadow: 0 0 16px rgba(0, 217, 192, 0.35);
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-link {
            font-size: 14px;
            color: var(--text-gray);
            font-weight: 500;
            padding: 8px 2px;
            position: relative;
            transition: color 0.2s ease;
        }

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

        .nav-link.active {
            color: #fff;
            text-shadow: 0 0 12px rgba(0, 217, 192, 0.5);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 2px 8px rgba(0, 217, 192, 0.6);
            border-radius: 2px;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .nav-btn {
            font-size: 14px;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            transition: all 0.2s ease;
        }

        .nav-btn:hover {
            box-shadow: 0 0 20px rgba(0, 217, 192, 0.4);
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 18px;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.08);
        }

        .mobile-menu {
            display: none;
            background: rgba(13, 18, 32, 0.98);
            backdrop-filter: blur(16px);
            padding: 20px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-menu a {
            display: block;
            padding: 12px 0;
            color: var(--text-gray);
            font-size: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu a.active {
            color: var(--primary);
        }

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

        @media (max-width: 768px) {
            .main-nav,
            .nav-cta .nav-btn {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }
        }

        /* === 按钮 === */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            transition: all 0.2s ease;
            box-shadow: 0 4px 20px rgba(0, 217, 192, 0.25);
        }

        .btn-primary:hover {
            box-shadow: 0 0 26px rgba(0, 217, 192, 0.45);
            filter: brightness(1.1);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: scale(0.96);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            background: transparent;
            transition: all 0.2s ease;
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(0, 217, 192, 0.1);
            color: var(--primary);
        }

        .btn-secondary:active {
            transform: scale(0.96);
        }

        /* === Hero === */
        .category-hero {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            background-color: var(--dark-bg);
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.5;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 15, 25, 0.95) 0%, rgba(11, 15, 25, 0.7) 50%, rgba(11, 15, 25, 0.4) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 24px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            background: rgba(124, 92, 255, 0.15);
            border: 1px solid rgba(124, 92, 255, 0.4);
            color: #B4A0FF;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 24px;
        }

        .hero-tag i {
            font-size: 12px;
        }

        .category-hero h1 {
            font-size: clamp(2.25rem, 4vw, 3.25rem);
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .category-hero h1 .gradient-text {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-sub {
            font-size: 18px;
            color: rgba(226, 232, 240, 0.9);
            max-width: 560px;
            margin-bottom: 36px;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* 数据徽章 */
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 48px;
        }

        .stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 14px 20px;
            background: rgba(17, 22, 37, 0.8);
            border: 1px solid rgba(124, 92, 255, 0.4);
            border-radius: 14px;
        }

        .stat-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(0, 217, 192, 0.6);
        }

        .stat-badge .stat-num {
            font-family: "Inter", "DIN Alternate", "Roboto Mono", monospace;
            font-size: 20px;
            font-weight: 700;
            color: var(--accent);
        }

        .stat-badge .stat-label {
            font-size: 13px;
            color: var(--text-gray);
        }

        /* === 板块通用 === */
        .section-padding {
            padding: 80px 0;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            background: rgba(0, 217, 192, 0.1);
            border: 1px solid rgba(0, 217, 192, 0.3);
            color: #00A68F;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .section-head h2 {
            font-size: clamp(1.75rem, 2.5vw, 2.25rem);
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.2;
            margin-bottom: 16px;
        }

        .section-head p {
            font-size: 15px;
            color: #718096;
            line-height: 1.7;
        }

        .section-head.light h2 {
            color: #fff;
        }

        .section-head.light p {
            color: rgba(226, 232, 240, 0.8);
        }

        /* === 卖点 === */
        .features-section {
            background-color: var(--light-bg);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .feature-card {
            background: var(--white);
            border-radius: 24px;
            padding: 40px 36px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

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

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: rgba(124, 92, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 22px;
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }

        .feature-card p {
            font-size: 14px;
            color: #718096;
            line-height: 1.7;
        }

        .feature-card.wide {
            grid-column: span 2;
            display: flex;
            align-items: center;
            gap: 40px;
            background: linear-gradient(135deg, #1A2130, #111625);
            border: none;
        }

        .feature-card.wide::before {
            display: none;
        }

        .feature-card.wide .feature-icon {
            background: rgba(0, 217, 192, 0.15);
            color: var(--primary);
        }

        .feature-card.wide h3 {
            color: #fff;
        }

        .feature-card.wide p {
            color: rgba(226, 232, 240, 0.8);
        }

        .wide-content {
            flex: 1;
        }

        .wide-stats {
            display: flex;
            gap: 28px;
            flex-shrink: 0;
        }

        .wide-stat {
            text-align: center;
        }

        .wide-stat .num {
            font-family: "Inter", "Roboto Mono", monospace;
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
        }

        .wide-stat .label {
            font-size: 12px;
            color: var(--text-gray);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
            }

            .feature-card.wide {
                grid-column: span 1;
                flex-direction: column;
                gap: 24px;
            }

            .wide-stats {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
            }
        }

        /* === 适用场景 === */
        .scenario-section {
            background: linear-gradient(180deg, var(--dark-bg) 0%, #0D1220 100%);
            position: relative;
            overflow: hidden;
        }

        .scenario-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: rgba(124, 92, 255, 0.08);
            border-radius: 50%;
            filter: blur(80px);
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }

        .scenario-item {
            background: rgba(26, 33, 48, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            padding: 32px;
            transition: all 0.3s ease;
        }

        .scenario-item:hover {
            border-color: rgba(0, 217, 192, 0.4);
            box-shadow: 0 8px 30px rgba(0, 217, 192, 0.1);
            transform: translateY(-2px);
        }

        .scenario-num {
            font-family: "Inter", "Roboto Mono", monospace;
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            opacity: 0.6;
            margin-bottom: 16px;
            line-height: 1;
        }

        .scenario-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
        }

        .scenario-item p {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.7);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }

        /* === 资讯卡片列表 === */
        .news-section {
            background-color: var(--light-bg);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: var(--white);
            border-radius: 18px;
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

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

        .news-image {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

        .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .news-card:hover .news-image img {
            transform: scale(1.05);
        }

        .news-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 15, 25, 0.3));
        }

        .news-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            background: rgba(0, 217, 192, 0.1);
            color: #00A68F;
            font-size: 12px;
            font-weight: 600;
        }

        .tag.purple {
            background: rgba(124, 92, 255, 0.1);
            color: var(--secondary);
        }

        .tag.amber {
            background: rgba(255, 184, 46, 0.12);
            color: #B7791F;
        }

        .news-date {
            font-size: 13px;
            color: #A0AEC0;
        }

        .news-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.4;
            margin-bottom: 10px;
            transition: color 0.2s ease;
        }

        .news-card:hover .news-body h3 {
            color: #00A68F;
        }

        .news-body>p {
            font-size: 14px;
            color: #718096;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
            flex: 1;
        }

        .news-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap 0.2s ease;
        }

        .news-link:hover {
            gap: 10px;
            color: #00A68F;
        }

        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

        /* === 流程时间线 === */
        .process-section {
            background-color: var(--dark-bg);
            position: relative;
        }

        .process-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 217, 192, 0.4), rgba(124, 92, 255, 0.4), transparent);
        }

        .process-steps {
            position: relative;
            max-width: 720px;
            margin: 0 auto;
            padding-left: 40px;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            left: 14px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--primary), var(--secondary), transparent);
        }

        .process-step {
            position: relative;
            padding-bottom: 40px;
            padding-left: 32px;
        }

        .process-step:last-child {
            padding-bottom: 0;
        }

        .process-step::before {
            content: '';
            position: absolute;
            left: -33px;
            top: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--dark-bg);
            border: 3px solid var(--primary);
            box-shadow: 0 0 12px rgba(0, 217, 192, 0.5);
        }

        .process-step .step-num {
            font-family: "Inter", "Roboto Mono", monospace;
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 1px;
            margin-bottom: 6px;
        }

        .process-step h3 {
            font-size: 19px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.7);
            line-height: 1.7;
        }

        @media (max-width: 640px) {
            .process-steps {
                padding-left: 24px;
            }

            .process-step {
                padding-left: 20px;
            }

            .process-step::before {
                left: -22px;
            }
        }

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

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            background: var(--white);
            border-radius: 20px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            transition: background 0.2s ease;
        }

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

        .faq-item.active {
            background: rgba(0, 217, 192, 0.02);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 28px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            transition: color 0.2s ease;
        }

        .faq-question:hover {
            color: #00A68F;
        }

        .faq-question i {
            font-size: 14px;
            color: var(--text-gray);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 16px;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(0, 217, 192, 0.08);
        }

        .faq-item.active .faq-question i {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 28px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 28px 22px;
        }

        .faq-answer p {
            font-size: 14px;
            color: #718096;
            line-height: 1.75;
            border-left: 2px solid var(--primary);
            padding-left: 16px;
        }

        /* === CTA === */
        .cta-section {
            background: linear-gradient(135deg, var(--dark-bg), #0D1220);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -100px;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 200px;
            background: rgba(0, 217, 192, 0.08);
            border-radius: 50%;
            filter: blur(60px);
        }

        .cta-box {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .cta-box h2 {
            font-size: clamp(1.75rem, 2.5vw, 2.25rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-box p {
            font-size: 15px;
            color: rgba(226, 232, 240, 0.7);
            margin-bottom: 32px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* === 页脚 === */
        .site-footer {
            background-color: #0B0E16;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-brand .logo-text {
            font-size: 18px;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(160, 174, 192, 0.8);
            line-height: 1.7;
            margin-top: 16px;
            max-width: 320px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }

        .footer-links,
        .footer-contact {
            list-style: none;
        }

        .footer-links li,
        .footer-contact li {
            margin-bottom: 12px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(160, 174, 192, 0.8);
            transition: all 0.2s ease;
        }

        .footer-links a:hover {
            color: var(--primary);
            transform: translateX(3px);
            display: inline-block;
        }

        .footer-contact li {
            font-size: 14px;
            color: rgba(160, 174, 192, 0.8);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--primary);
            width: 16px;
            font-size: 13px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(160, 174, 192, 0.6);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        /* === 空态提示 === */
        .empty-state {
            text-align: center;
            padding: 60px 24px;
            color: var(--text-gray);
            font-size: 15px;
        }

        .empty-state i {
            font-size: 40px;
            color: rgba(0, 217, 192, 0.3);
            margin-bottom: 16px;
            display: block;
        }

/* roulang page: article */
:root {
  --primary: #00D9C0;
  --primary-dark: #00A68F;
  --secondary: #7C5CFF;
  --accent: #FFB82E;
  --bg-dark: #0B0F19;
  --bg-dark-2: #111625;
  --bg-light: #F6F8FC;
  --text-main: #1A202C;
  --text-muted: #718096;
  --text-light: #A0AEC0;
  --border-light: #E2E8F0;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 8px 30px rgba(2,8,20,0.08);
  --shadow-hover: 0 16px 40px rgba(124,92,255,0.15);
  --font-cn: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-num: "Inter", "DIN Alternate", "Roboto Mono", monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; height: auto; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style-position: inside; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 1rem; }

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 9999px;
  padding: 12px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  transition: all 0.2s;
  cursor: pointer;
  line-height: 1.2;
}
.btn-primary {
  background: linear-gradient(135deg, #00D9C0, #7C5CFF);
  color: #fff;
}
.btn-primary:hover {
  box-shadow: 0 0 20px rgba(0, 217, 192, 0.4);
  filter: brightness(1.1);
}
.btn-primary:active { transform: scale(0.95); }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-outline-dark {
  background: transparent;
  border: 1.5px solid #A0AEC0;
  color: #4A5568;
}
.btn-outline-dark:hover {
  border-color: #00A68F;
  color: #00A68F;
  background: rgba(0, 217, 192, 0.08);
}
.btn-outline-light {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
}
.btn-outline-light:hover {
  border-color: #00D9C0;
  background: rgba(0, 217, 192, 0.1);
  color: #00D9C0;
}

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 25, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  position: relative;
}
.site-header::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, #00D9C0, #7C5CFF, transparent);
  pointer-events: none;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
}
.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #00D9C0, #7C5CFF);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.85rem;
  box-shadow: 0 0 12px rgba(0, 217, 192, 0.3);
  flex-shrink: 0;
}
.logo-text {
  background: linear-gradient(135deg, #fff, #E2E8F0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  font-size: 0.9rem;
  color: #A0AEC0;
  padding: 8px 2px;
  font-weight: 500;
  position: relative;
  transition: color 0.2s;
  letter-spacing: 0.02em;
}
.nav-link:hover { color: #fff; }
.nav-link.active { color: #fff; text-shadow: 0 0 12px rgba(0, 217, 192, 0.4); }
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: #00D9C0;
  box-shadow: 0 2px 8px rgba(0, 217, 192, 0.6);
}

.header-cta { margin-left: 8px; flex-shrink: 0; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.1rem;
  padding: 8px;
}

/* ===== 文章页 ===== */
.article-main {
  padding: 48px 0 80px;
  min-height: calc(100vh - 64px - 400px);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}
.breadcrumb a { color: var(--text-muted); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { color: #CBD5E0; }
.breadcrumb-current {
  color: var(--text-main);
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 48px;
  max-width: 900px;
  margin: 0 auto;
  border: 1px solid rgba(226, 232, 240, 0.6);
  position: relative;
}
.article-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 48px;
  right: 48px;
  height: 3px;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(90deg, #00D9C0, #7C5CFF);
  opacity: 0.6;
}

.article-title {
  font-size: clamp(1.75rem, 2.5vw, 2.25rem);
  line-height: 1.3;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 20px;
  word-break: break-word;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.875rem;
  color: var(--text-muted);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 32px;
}
.article-meta i { margin-right: 6px; color: #00A68F; }

.article-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 9999px;
  background: #E8F8F5;
  color: #00A68F;
  font-size: 0.8rem;
  font-weight: 600;
}

/* 文章正文排版 */
.article-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-main);
  word-break: break-word;
}
.article-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid #EDF2F7;
  line-height: 1.3;
}
.article-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 28px 0 12px;
  line-height: 1.4;
}
.article-content p { margin-bottom: 1.5em; }
.article-content ul,
.article-content ol { margin: 0 0 1.5em 1.5em; }
.article-content li { margin-bottom: 0.5em; }
.article-content blockquote {
  border-left: 4px solid var(--primary);
  padding: 16px 24px;
  background: #F7FAFC;
  border-radius: 0 12px 12px 0;
  margin: 24px 0;
  color: #4A5568;
}
.article-content img { border-radius: 12px; margin: 24px 0; box-shadow: var(--shadow-card); }
.article-content a { color: #00A68F; text-decoration: underline; }
.article-content code {
  background: #EDF2F7;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.875em;
  font-family: var(--font-num);
}
.article-content pre {
  background: #0B0F19;
  color: #E2E8F0;
  padding: 20px;
  border-radius: 12px;
  overflow-x: auto;
  margin: 24px 0;
}
.article-content pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.9rem;
}
.article-content table th,
.article-content table td {
  border: 1px solid var(--border-light);
  padding: 10px 16px;
  text-align: left;
}
.article-content table th {
  background: #F7FAFC;
  font-weight: 600;
}
.article-content figure { margin: 24px 0; }
.article-content figcaption {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 8px;
}

/* ===== 相关推荐 ===== */
.related-section {
  max-width: 900px;
  margin: 48px auto 0;
}
.related-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.related-line {
  width: 32px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, #00D9C0, #7C5CFF);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.related-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(226, 232, 240, 0.6);
  display: flex;
  transition: all 0.25s;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(0, 217, 192, 0.4);
}
.related-thumb {
  width: 130px;
  min-height: 100px;
  object-fit: cover;
  flex-shrink: 0;
}
.related-body {
  padding: 16px 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.related-body h4 {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
  transition: color 0.2s;
}
.related-card:hover .related-body h4 { color: var(--primary); }
.related-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.related-cat {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 9999px;
  background: #E8F8F5;
  color: #00A68F;
  font-size: 0.75rem;
  font-weight: 600;
}

.back-home {
  margin-top: 36px;
  text-align: center;
}

/* ===== 内容未找到 ===== */
.not-found {
  text-align: center;
  padding: 80px 48px;
}
.not-found-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: #F7FAFC;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
}
.not-found-text {
  color: var(--text-muted);
  margin-bottom: 32px;
}
.not-found .article-title { margin-bottom: 16px; }

/* ===== 页脚 ===== */
.site-footer {
  background: #0B0E16;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 60px 0 0;
  color: #A0AEC0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-desc {
  font-size: 0.875rem;
  line-height: 1.7;
  color: #718096;
  max-width: 320px;
  margin-top: 16px;
}
.footer-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-links,
.footer-contact {
  list-style: none;
  padding: 0;
}
.footer-links li,
.footer-contact li {
  margin-bottom: 10px;
  font-size: 0.875rem;
}
.footer-links a {
  color: #A0AEC0;
  transition: all 0.2s;
}
.footer-links a:hover {
  color: #00D9C0;
  padding-left: 8px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact i {
  color: #00D9C0;
  width: 16px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 20px 0;
  text-align: center;
  font-size: 0.8rem;
  color: #4A5568;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .main-nav { gap: 20px; }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(11, 15, 25, 0.98);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  }
  .main-nav.open { display: flex; }
  .nav-link { padding: 12px 0; width: 100%; font-size: 1rem; }
  .nav-link.active::after { width: auto; }
  .menu-toggle { display: block; }
  .header-cta { display: none; }

  .article-main { padding: 32px 0 60px; }
  .article-card { padding: 28px 20px; }
  .article-card::before { left: 20px; right: 20px; }
  .article-title { font-size: 1.5rem; }
  .article-meta { gap: 12px; }
  .related-grid { grid-template-columns: 1fr; }
  .related-thumb { width: 110px; min-height: 90px; }
  .breadcrumb-current { max-width: 200px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .logo-text { font-size: 1rem; }
  .logo-icon { width: 30px; height: 30px; }
  .article-card { padding: 24px 16px; }
  .article-card::before { left: 16px; right: 16px; }
  .article-title { font-size: 1.35rem; line-height: 1.4; }
  .article-content { font-size: 0.95rem; }
  .related-card { flex-direction: column; }
  .related-thumb { width: 100%; min-height: 140px; }
  .related-body { padding: 16px; }
  .back-home .btn { width: 100%; }
  .not-found { padding: 48px 24px; }
  .footer-grid { gap: 24px; }
}

/* roulang page: category2 */
:root {
            --color-primary: #00D9C0;
            --color-secondary: #7C5CFF;
            --color-accent: #FFB82E;
            --color-dark-bg: #0B0F19;
            --color-dark-bg2: #111625;
            --color-dark-card: #1A2130;
            --color-dark-card2: #212A3A;
            --color-light-bg: #F6F8FC;
            --color-card-bg: #FFFFFF;
            --color-text: #1A2233;
            --color-text-light: #6B7280;
            --color-border: #E5E7EB;
            --radius-lg: 16px;
            --radius-full: 9999px;
            --shadow-card: 0 8px 30px rgba(2, 8, 20, 0.08);
            --shadow-hover: 0 16px 40px rgba(124, 92, 255, 0.15);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            background: var(--color-light-bg);
            color: var(--color-text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        .num-font {
            font-family: "Inter", "DIN Alternate", "Roboto Mono", monospace;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(13, 18, 32, 0.93);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-header::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, #00D9C0, #7C5CFF, transparent);
            pointer-events: none;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 20px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            border-radius: 10px;
            color: #fff;
            font-size: 14px;
            box-shadow: 0 0 16px rgba(0, 217, 192, 0.3);
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            position: relative;
            display: inline-block;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            color: #A0AEC0;
            border-radius: 8px;
            transition: all 0.2s ease;
            line-height: 1.4;
        }
        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-link.active {
            color: #fff;
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0, 217, 192, 0.7);
        }
        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            color: #fff;
            font-size: 18px;
            transition: all 0.2s;
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(0, 217, 192, 0.4);
        }

        /* ========== Hero ========== */
        .page-hero {
            position: relative;
            padding: 96px 0 80px;
            background: linear-gradient(135deg, #0B0F19 0%, #111625 60%, #0D0F17 100%);
            overflow: hidden;
        }
        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 80%, rgba(124, 92, 255, 0.15) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 20%, rgba(0, 217, 192, 0.12) 0%, transparent 50%);
        }
        .page-hero-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(17, 22, 37, 0.8);
            border: 1px solid rgba(124, 92, 255, 0.4);
            border-radius: 999px;
            padding: 6px 18px;
            font-size: 13px;
            color: #CBD5E0;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }
        .hero-badge .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-primary);
            box-shadow: 0 0 8px var(--color-primary);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.6;
                transform: scale(0.85);
            }
        }
        .page-hero h1 {
            font-size: clamp(2.25rem, 4vw, 3.25rem);
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .page-hero h1 .gradient-text {
            background: linear-gradient(135deg, #00D9C0, #7C5CFF);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }
        .page-hero .subtitle {
            font-size: 16px;
            color: #A0AEC0;
            max-width: 560px;
            margin-bottom: 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 48px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: all 0.25s ease;
            border: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, #00D9C0, #7C5CFF);
            color: #fff;
            box-shadow: 0 4px 18px rgba(0, 217, 192, 0.25);
        }
        .btn-primary:hover {
            box-shadow: 0 0 24px rgba(0, 217, 192, 0.4);
            filter: brightness(1.08);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(0.96);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
        }
        .btn-ghost:hover {
            border-color: rgba(0, 217, 192, 0.6);
            background: rgba(0, 217, 192, 0.1);
            transform: translateY(-2px);
        }
        .btn-ghost:active {
            transform: scale(0.96);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(17, 22, 37, 0.75);
            border: 1px solid rgba(124, 92, 255, 0.3);
            border-radius: 14px;
            padding: 12px 20px;
            backdrop-filter: blur(8px);
        }
        .stat-badge .num {
            font-family: "Inter", "DIN Alternate", "Roboto Mono", monospace;
            font-size: 20px;
            font-weight: 700;
            color: var(--color-accent);
        }
        .stat-badge .label {
            font-size: 13px;
            color: #A0AEC0;
        }

        /* ========== Section common ========== */
        .section {
            padding: 80px 0;
        }
        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .section-desc {
            font-size: 15px;
            color: var(--color-text-light);
            max-width: 640px;
            line-height: 1.7;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header.center {
            text-align: center;
        }
        .section-header.center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== Timeline ========== */
        .timeline-section {
            background: var(--color-light-bg);
        }
        .timeline {
            position: relative;
            padding-left: 32px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(180deg, #00D9C0, #7C5CFF, transparent);
        }
        .timeline-item {
            position: relative;
            padding: 0 0 40px 24px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--color-dark-bg);
            border: 3px solid var(--color-primary);
            box-shadow: 0 0 10px rgba(0, 217, 192, 0.5);
            z-index: 1;
        }
        .timeline-card {
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--color-border);
            padding: 24px 28px;
            transition: all 0.25s ease;
            box-shadow: var(--shadow-card);
        }
        .timeline-card:hover {
            border-color: rgba(0, 217, 192, 0.4);
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .timeline-step {
            display: inline-flex;
            align-items: center;
            font-family: "Inter", "DIN Alternate", "Roboto Mono", monospace;
            font-size: 13px;
            font-weight: 700;
            color: var(--color-primary);
            background: rgba(0, 217, 192, 0.08);
            border-radius: 999px;
            padding: 2px 12px;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .timeline-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--color-text);
        }
        .timeline-card p {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.7;
        }

        /* ========== Compare Cards ========== */
        .compare-section {
            background: var(--color-dark-bg);
        }
        .compare-section .section-title {
            color: #fff;
        }
        .compare-section .section-desc {
            color: rgba(255, 255, 255, 0.6);
        }
        .compare-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: start;
        }
        .compare-card {
            background: var(--color-dark-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            padding: 32px 28px;
            position: relative;
            transition: all 0.25s ease;
        }
        .compare-card.recommended {
            background: linear-gradient(145deg, rgba(0, 217, 192, 0.06), rgba(124, 92, 255, 0.08));
            border-color: rgba(0, 217, 192, 0.5);
            box-shadow: 0 0 30px rgba(0, 217, 192, 0.1);
            margin-top: -16px;
            margin-bottom: -16px;
        }
        .compare-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 217, 192, 0.3);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
        }
        .compare-card .rec-tag {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, #00D9C0, #7C5CFF);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            padding: 4px 16px;
            white-space: nowrap;
            box-shadow: 0 4px 12px rgba(0, 217, 192, 0.3);
        }
        .compare-card h3 {
            color: #fff;
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .compare-card .tagline {
            color: var(--color-primary);
            font-size: 14px;
            margin-bottom: 20px;
        }
        .compare-features {
            list-style: none;
            margin: 0 0 24px;
            padding: 0;
        }
        .compare-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            padding: 6px 0;
            line-height: 1.6;
        }
        .compare-features li i {
            color: var(--color-primary);
            font-size: 13px;
            margin-top: 5px;
            flex-shrink: 0;
        }
        .compare-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 999px;
            padding: 8px 22px;
            transition: all 0.2s;
        }
        .compare-btn:hover {
            background: rgba(0, 217, 192, 0.12);
            border-color: rgba(0, 217, 192, 0.5);
        }
        .compare-card.recommended .compare-btn {
            background: linear-gradient(135deg, #00D9C0, #7C5CFF);
            border: none;
            box-shadow: 0 4px 14px rgba(0, 217, 192, 0.25);
        }
        .compare-card.recommended .compare-btn:hover {
            box-shadow: 0 0 20px rgba(0, 217, 192, 0.4);
            filter: brightness(1.06);
        }

        /* ========== Guide List ========== */
        .guide-section {
            background: var(--color-light-bg);
        }
        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .guide-item {
            position: relative;
            display: flex;
            align-items: stretch;
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
        }
        .guide-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(180deg, #00D9C0, #7C5CFF);
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .guide-item:hover {
            border-color: rgba(0, 217, 192, 0.35);
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }
        .guide-item:hover::before {
            opacity: 1;
        }
        .guide-thumb {
            width: 160px;
            flex-shrink: 0;
            position: relative;
            overflow: hidden;
            background: var(--color-dark-bg);
        }
        .guide-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.9;
            transition: transform 0.4s ease;
        }
        .guide-item:hover .guide-thumb img {
            transform: scale(1.05);
        }
        .guide-thumb .thumb-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(11, 15, 25, 0.75);
            border: 1px solid rgba(0, 217, 192, 0.4);
            color: var(--color-primary);
            font-size: 11px;
            font-weight: 600;
            border-radius: 999px;
            padding: 2px 10px;
            backdrop-filter: blur(4px);
        }
        .guide-info {
            flex: 1;
            padding: 22px 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .guide-info h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.4;
            transition: color 0.2s;
        }
        .guide-info h3:hover {
            color: var(--color-primary);
        }
        .guide-info p {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .guide-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: #9CA3AF;
        }
        .guide-meta .tag {
            background: rgba(0, 217, 192, 0.08);
            color: #00A68F;
            border-radius: 999px;
            padding: 1px 10px;
            font-size: 12px;
            font-weight: 500;
        }
        .guide-meta .arrow {
            margin-left: auto;
            color: var(--color-primary);
            transition: transform 0.2s;
        }
        .guide-item:hover .guide-meta .arrow {
            transform: translateX(4px);
        }

        /* ========== Security Tips ========== */
        .security-section {
            background: var(--color-dark-bg);
            padding: 80px 0;
        }
        .security-section .section-title {
            color: #fff;
        }
        .security-section .section-desc {
            color: rgba(255, 255, 255, 0.6);
        }
        .security-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .security-card {
            background: rgba(26, 33, 48, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            padding: 28px 24px;
            transition: all 0.25s ease;
            position: relative;
            overflow: hidden;
        }
        .security-card::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 60px;
            height: 60px;
            background: radial-gradient(circle, rgba(124, 92, 255, 0.15), transparent 70%);
        }
        .security-card:hover {
            border-color: rgba(0, 217, 192, 0.3);
            transform: translateY(-3px);
        }
        .security-icon {
            width: 44px;
            height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(124, 92, 255, 0.15);
            border: 1px solid rgba(124, 92, 255, 0.3);
            border-radius: 12px;
            color: var(--color-primary);
            font-size: 18px;
            margin-bottom: 16px;
        }
        .security-card h3 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .security-card p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.65;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--color-light-bg);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            background: #fff;
            border-radius: 20px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border);
            transition: background 0.2s;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 28px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            transition: all 0.2s;
            user-select: none;
            gap: 16px;
        }
        .faq-question:hover {
            background: rgba(0, 217, 192, 0.03);
        }
        .faq-question .icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(0, 217, 192, 0.08);
            color: var(--color-primary);
            font-size: 14px;
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-question .icon {
            transform: rotate(45deg);
        }
        .faq-item.active .faq-question {
            color: var(--color-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-answer-inner {
            padding: 0 28px 20px;
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.75;
        }
        .faq-item.active .faq-answer {
            max-height: 240px;
        }

        /* ========== CTA ========== */
        .cta-band {
            background: linear-gradient(135deg, #111625, #1A2130);
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 217, 192, 0.12), transparent 50%),
                radial-gradient(ellipse at 70% 50%, rgba(124, 92, 255, 0.12), transparent 50%);
        }
        .cta-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-text h2 {
            color: #fff;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .cta-text p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 15px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0B0E16;
            padding: 64px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .logo-text {
            font-size: 20px;
            color: #fff;
        }
        .footer-desc {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            line-height: 1.7;
            margin-top: 16px;
            max-width: 340px;
        }
        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            transition: all 0.2s ease;
            display: inline-block;
        }
        .footer-links a:hover {
            color: var(--color-primary);
            transform: translateX(4px);
        }
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            margin-bottom: 10px;
        }
        .footer-contact li i {
            color: var(--color-primary);
            font-size: 13px;
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            text-align: center;
            color: rgba(255, 255, 255, 0.35);
            font-size: 13px;
            letter-spacing: 0.5px;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .compare-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .compare-card {
                padding: 24px 18px;
            }
            .security-grid {
                gap: 16px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .menu-toggle {
                display: inline-flex;
            }
            .main-nav {
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(13, 18, 32, 0.97);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                gap: 4px;
                display: none;
                border-bottom: 1px solid rgba(0, 217, 192, 0.2);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 10px;
            }
            .nav-link.active::after {
                left: 16px;
                bottom: 6px;
                right: auto;
                width: 24px;
            }
            .page-hero {
                padding: 72px 0 60px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-stats {
                gap: 12px;
            }
            .stat-badge {
                flex: 1;
                justify-content: center;
                padding: 10px 12px;
            }
            .section {
                padding: 60px 0;
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .compare-card.recommended {
                margin-top: 0;
                margin-bottom: 0;
                order: -1;
            }
            .security-grid {
                grid-template-columns: 1fr;
            }
            .guide-thumb {
                width: 110px;
            }
            .guide-info {
                padding: 16px;
            }
            .guide-info h3 {
                font-size: 15px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-text h2 {
                font-size: 22px;
            }
            .timeline {
                padding-left: 20px;
            }
            .timeline-item {
                padding-left: 18px;
            }
            .timeline-item::before {
                left: -24px;
                width: 12px;
                height: 12px;
            }
        }
        @media (max-width: 520px) {
            .guide-thumb {
                display: none;
            }
            .guide-info {
                width: 100%;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 14px;
            }
            .faq-answer-inner {
                padding: 0 18px 16px;
            }
            .hero-stats {
                flex-direction: column;
            }
            .stat-badge {
                width: 100%;
            }
        }

        /* Transition helper */
        .transition-all {
            transition: all 0.3s ease;
        }