/* roulang page: index */
:root {
            --primary: #C6F24E;
            --primary-hover: #D6F86A;
            --primary-dark: #6B8F00;
            --pine: #3D5A45;
            --ink: #0C0E0C;
            --ink-light: #141713;
            --paper: #F5F6F2;
            --white: #FFFFFF;
            --text-main: #161A14;
            --text-sub: #5B6270;
            --text-weak: #9CA3AF;
            --border-light: #E4E7DE;
            --border-dark: #2A2F28;
            --success: #2E9E5B;
            --error: #D14343;
            --radius-card: 18px;
            --radius-pill: 999px;
            --container: 1200px;
            --duration: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--paper);
            color: var(--text-main);
            line-height: 1.7;
            overflow-x: hidden;
        }
        img {
            display: block;
            max-width: 100%;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            background: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-pad {
            padding: 96px 0;
        }
        h1,
        h2,
        h3 {
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        /* 导航 */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 100;
            padding: 0 16px;
            pointer-events: none;
        }
        .site-header .nav-inner {
            max-width: var(--container);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(12, 14, 12, 0.38);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-pill);
            padding: 10px 20px;
            pointer-events: auto;
            transition: background var(--duration), box-shadow var(--duration);
        }
        .site-header.scrolled .nav-inner {
            background: rgba(12, 14, 12, 0.88);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
            border-color: rgba(255, 255, 255, 0.08);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            color: #fff;
            font-size: 17px;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .logo .logo-dot {
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 12px rgba(198, 242, 78, 0.8);
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
        }
        .nav-links a {
            display: block;
            padding: 7px 16px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            color: rgba(255, 255, 255, 0.82);
            font-weight: 500;
            transition: all var(--duration);
            white-space: nowrap;
        }
        .nav-links a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .nav-links a.active {
            background: rgba(198, 242, 78, 0.16);
            color: var(--primary);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: var(--ink) !important;
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-pill);
            padding: 10px 24px;
            transition: all var(--duration);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(198, 242, 78, 0.25);
        }

        /* 汉堡按钮 */
        .burger-btn {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.1);
            cursor: pointer;
        }
        .burger-btn span,
        .burger-btn span::before,
        .burger-btn span::after {
            content: "";
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 4px;
            position: relative;
            transition: all 0.2s;
        }
        .burger-btn span::before {
            position: absolute;
            top: -7px;
        }
        .burger-btn span::after {
            position: absolute;
            top: 7px;
        }
        .burger-btn.open span {
            background: transparent;
        }
        .burger-btn.open span::before {
            top: 0;
            transform: rotate(45deg);
        }
        .burger-btn.open span::after {
            top: 0;
            transform: rotate(-45deg);
        }

        /* 移动抽屉 */
        .mobile-drawer {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(12, 14, 12, 0.97);
            z-index: 99;
            padding: 100px 24px 40px;
            overflow-y: auto;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease;
        }
        .mobile-drawer.open {
            opacity: 1;
            visibility: visible;
        }
        .mobile-drawer a {
            display: block;
            color: #fff;
            font-size: 22px;
            font-weight: 600;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .mobile-drawer a.active {
            color: var(--primary);
        }
        .mobile-drawer .drawer-cta {
            margin-top: 32px;
            text-align: center;
            background: var(--primary);
            color: var(--ink) !important;
            border-radius: var(--radius-pill);
            border-bottom: none;
            font-size: 18px;
            font-weight: 700;
        }

        /* Hero */
        .hero-section {
            background: var(--ink);
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.4;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(12, 14, 12, 0.95) 0%, rgba(12, 14, 12, 0.72) 60%, rgba(12, 14, 12, 0.45) 100%);
        }
        .hero-grid-lines {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px), linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 60px 60px;
            mask-image: radial-gradient(circle at 30% 50%, #000, transparent 70%);
        }
        .hero-main-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(198, 242, 78, 0.12);
            border: 1px solid rgba(198, 242, 78, 0.4);
            color: var(--primary);
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            padding: 5px 16px;
            letter-spacing: 0.04em;
            margin-bottom: 24px;
        }
        .hero-main-label .pulse-dot {
            width: 7px;
            height: 7px;
            background: var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 0 0 rgba(198, 242, 78, 0.7);
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(198, 242, 78, 0.6);
            }
            70% {
                box-shadow: 0 0 0 8px rgba(198, 242, 78, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(198, 242, 78, 0);
            }
        }
        .hero-title {
            font-size: clamp(42px, 6vw, 68px);
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            letter-spacing: -0.01em;
        }
        .hero-title .secondary-line {
            display: block;
            font-weight: 400;
            font-size: 20px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 20px;
            line-height: 1.6;
            letter-spacing: 0;
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 18px 28px;
            margin-top: 28px;
        }
        .hero-trust li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }
        .hero-trust .check {
            color: var(--primary);
            font-size: 16px;
        }

        /* Hero卡片组 */
        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 440px;
        }
        .hero-card-main {
            background: rgba(20, 23, 19, 0.82);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 22px;
            backdrop-filter: blur(8px);
            width: 100%;
            max-width: 440px;
            padding: 24px;
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
            z-index: 2;
            position: relative;
        }
        .hero-card-main img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 14px;
            margin-bottom: 16px;
        }
        .hero-card-sub {
            position: absolute;
            background: var(--ink-light);
            border-radius: 14px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 14px 18px;
            color: #fff;
            font-size: 13px;
            z-index: 3;
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.28);
            min-width: 150px;
        }
        .hero-card-sub.live-up {
            top: 0;
            right: -10px;
        }
        .hero-card-sub.live-down {
            bottom: 0;
            left: -14px;
        }
        .hero-card-sub .num {
            font-family: "Inter", "DIN Alternate", sans-serif;
            font-feature-settings: "tnum";
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            display: block;
        }

        /* 数据条 */
        .stats-bar {
            background: var(--ink-light);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .stat-item {
            text-align: center;
            padding: 8px 4px;
        }
        .stat-item .stat-num {
            font-family: "Inter", "DIN Alternate", sans-serif;
            font-feature-settings: "tnum";
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 48px;
            padding: 0 24px;
            border-radius: var(--radius-pill);
            font-weight: 500;
            font-size: 16px;
            cursor: pointer;
            transition: all var(--duration);
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--ink) !important;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(198, 242, 78, 0.3);
        }
        .btn-ghost-light {
            background: transparent;
            color: #fff !important;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }
        .btn-ghost-dark {
            background: transparent;
            color: var(--ink) !important;
            border: 1px solid var(--ink);
        }
        .btn-ghost-dark:hover {
            background: var(--ink);
            color: #fff !important;
        }
        .btn-dark-green {
            background: var(--pine);
            color: #fff !important;
        }
        .btn-dark-green:hover {
            filter: brightness(1.1);
            transform: translateY(-1px);
        }
        .btn-lg {
            min-height: 56px;
            padding: 0 36px;
            font-size: 17px;
        }

        /* 区块标题 */
        .sec-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-dark);
            background: rgba(198, 242, 78, 0.2);
            padding: 4px 14px;
            border-radius: 6px;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
        }
        .sec-title {
            font-size: clamp(30px, 4vw, 40px);
            font-weight: 700;
            color: var(--ink);
            line-height: 1.2;
        }
        .sec-desc {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 560px;
            margin-top: 12px;
            line-height: 1.8;
        }
        .section-dark {
            background: var(--ink);
        }
        .section-dark .sec-title {
            color: #fff;
        }
        .section-dark .sec-desc {
            color: rgba(255, 255, 255, 0.65);
        }
        .section-mid {
            background: var(--ink-light);
        }

        /* 特性卡片 */
        .feature-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: all var(--duration);
            height: 100%;
        }
        .feature-card:hover {
            border-color: rgba(198, 242, 78, 0.55);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .feature-card .icon-box {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(198, 242, 78, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 20px;
            margin-bottom: 18px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* 产品演示 */
        .demo-panel {
            background: rgba(20, 23, 19, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 24px;
            padding: 16px;
            box-shadow: 0 30px 70px rgba(0, 0, 0, 0.3);
        }
        .demo-browser {
            background: var(--ink);
            border-radius: 14px;
            overflow: hidden;
        }
        .demo-browser .browser-head {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
        }
        .demo-browser .browser-head i {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            display: block;
        }
        .demo-browser .browser-head i:nth-child(1) {
            background: #FF5F57;
        }
        .demo-browser .browser-head i:nth-child(2) {
            background: #FEBC2E;
        }
        .demo-browser .browser-head i:nth-child(3) {
            background: #28C840;
        }
        .demo-browser .browser-body img {
            width: 100%;
            height: auto;
            max-height: 380px;
            object-fit: cover;
        }
        .demo-list {
            margin-top: 14px;
        }
        .demo-list .demo-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .demo-list .demo-item:last-child {
            border-bottom: none;
        }
        .demo-list .demo-index {
            font-family: "Inter", "DIN Alternate", sans-serif;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            line-height: 2;
            flex-shrink: 0;
        }
        .demo-list .demo-title {
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            margin-bottom: 4px;
        }
        .demo-list .demo-desc {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.7;
        }

        /* 资质 */
        .cert-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .cert-badge {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 70px;
            padding: 14px 28px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
        }
        .cert-badge .cert-icon {
            font-size: 20px;
            color: var(--primary-dark);
        }

        /* 空状态 */
        .empty-state {
            border: 1.5px dashed #B6C0A8;
            border-radius: var(--radius-card);
            min-height: 200px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--text-weak);
            font-size: 15px;
            gap: 10px;
            background: rgba(255, 255, 255, 0.4);
        }
        .empty-state .empty-icon {
            font-size: 30px;
        }

        /* 文章卡片 */
        .article-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 24px;
            display: flex;
            flex-direction: column;
            transition: all var(--duration);
            height: 100%;
        }
        .article-card:hover {
            border-color: rgba(198, 242, 78, 0.55);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .article-card .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: #405500;
            background: rgba(198, 242, 78, 0.2);
            border-radius: 6px;
            padding: 3px 8px;
            margin-bottom: 12px;
            width: fit-content;
        }
        .article-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }
        .article-card h3 a:hover {
            color: var(--primary-dark);
        }
        .article-card .excerpt {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
            flex: 1;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
        }
        .article-meta .dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: var(--text-weak);
            display: inline-block;
        }
        .article-meta .more {
            margin-left: auto;
            color: var(--primary-dark);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .article-meta .more:hover {
            gap: 8px;
        }

        /* 下载区 */
        .download-panel {
            background: var(--inklight);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 24px;
            padding: 36px;
        }
        .download-icon-list {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .download-icon-list span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            background: rgba(255, 255, 255, 0.06);
            padding: 5px 16px;
            border-radius: 999px;
            display: inline-flex;
            gap: 6px;
            align-items: center;
        }

        /* 价格卡 */
        .price-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 18px;
            padding: 32px;
            display: flex;
            flex-direction: column;
            height: 100%;
            transition: all var(--duration);
        }
        .price-card.recommend {
            border: 2px solid var(--primary-dark);
            box-shadow: var(--shadow-card);
        }
        .price-card .price-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-sub);
            margin-bottom: 8px;
        }
        .price-card .price-num {
            font-family: "Inter", "DIN Alternate", sans-serif;
            font-feature-settings: "tnum";
            font-size: 42px;
            font-weight: 800;
            color: var(--ink);
            line-height: 1.1;
        }
        .price-card .price-num small {
            font-size: 16px;
            font-weight: 500;
            color: var(--text-sub);
            margin-left: 4px;
        }
        .price-card .price-duration {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 22px;
        }
        .price-card ul {
            list-style: none;
            margin-bottom: 24px;
            flex: 1;
        }
        .price-card ul li {
            padding: 7px 0;
            font-size: 14px;
            color: var(--text-main);
            display: flex;
            gap: 8px;
            align-items: flex-start;
        }
        .price-card ul li .icon-check {
            color: var(--primary-dark);
            font-weight: 700;
            flex-shrink: 0;
        }
        .recommend-tag {
            align-self: flex-start;
            background: var(--primary);
            color: var(--ink);
            font-size: 12px;
            font-weight: 700;
            padding: 3px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        /* FAQ */
        .faq-section {
            background: var(--ink);
        }
        .faq-section .sec-title {
            color: #fff;
        }
        .faq-question-list {
            overflow: hidden;
        }
        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .faq-item:first-of-type {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 22px 0;
            cursor: pointer;
            color: rgba(255, 255, 255, 0.95);
            font-size: 16px;
            font-weight: 500;
            text-align: left;
            width: 100%;
            background: none;
            transition: color 0.2s;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            width: 22px;
            height: 22px;
            position: relative;
            flex-shrink: 0;
            opacity: 0.6;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--primary);
            border-radius: 3px;
            top: 50%;
            left: 50%;
            transition: all 0.2s ease;
        }
        .faq-icon::before {
            width: 14px;
            height: 2px;
            transform: translate(-50%, -50%);
        }
        .faq-icon::after {
            width: 2px;
            height: 14px;
            transform: translate(-50%, -50%);
        }
        .faq-item.open .faq-icon::after {
            transform: translate(-50%, -50%) rotate(90deg);
            opacity: 0;
        }
        .faq-item.open .faq-icon::before {
            transform: translate(-50%, -50%);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            padding-right: 24px;
        }
        .faq-answer-inner {
            padding-bottom: 24px;
            color: rgba(255, 255, 255, 0.65);
            font-size: 15px;
            line-height: 1.8;
        }

        /* 页脚 */
        .site-footer {
            background: var(--ink);
            border-top: 1px solid var(--border-dark);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
            gap: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            max-width: 300px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: color 0.2s;
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 48px;
            padding: 20px 0 24px;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* 浮动CTA */
        .floating-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 80;
            background: var(--primary);
            color: var(--ink);
            border-radius: var(--radius-pill);
            padding: 0 28px;
            height: 56px;
            display: flex;
            align-items: center;
            font-weight: 700;
            font-size: 16px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: all 0.3s ease;
            text-decoration: none;
        }
        .floating-cta.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .floating-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
        }

        /* 响应式 */
        @media (min-width: 1200px) {
            .category-links {
                display: flex !important;
            }
        }
        @media (max-width: 1024px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .nav-links {
                display: none;
            }
            .burger-btn {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .mobile-drawer {
                display: block;
            }
            .hero-section {
                padding-top: 96px;
            }
            .hero-visual {
                margin-top: 40px;
                min-height: 360px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 72px 0;
            }
            .hero-card-sub.live-up {
                right: 0;
            }
            .hero-card-sub.live-down {
                left: 0;
            }
            .stats-grid {
                gap: 8px;
            }
            .stat-item .stat-num {
                font-size: 26px;
            }
            .demo-list .demo-item {
                gap: 12px;
                padding: 14px 0;
            }
            .empty-state {
                min-height: 180px;
            }
        }
        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-pad {
                padding: 56px 0;
            }
            .btn-lg {
                min-height: 50px;
                padding: 0 28px;
                font-size: 15px;
            }
            .hero-visual {
                min-height: auto;
            }
            .hero-card-sub.live-up {
                display: none;
            }
            .hero-card-sub.live-down {
                bottom: -18px;
            }
            .floating-cta {
                right: 16px;
                bottom: 16px;
                height: 50px;
                padding: 0 20px;
                font-size: 15px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.001s !important;
                transition-duration: 0.001s !important;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #C6F24E;
            --primary-bright: #D6F86A;
            --secondary: #3D5A45;
            --ink: #0C0E0C;
            --panel: #141713;
            --paper: #F5F6F2;
            --card: #FFFFFF;
            --text: #161A14;
            --muted: #5B6270;
            --muted-light: #9CA3AF;
            --line: #E4E7DE;
            --line-dark: #2A2F28;
            --radius: 18px;
            --radius-lg: 24px;
            --shadow: 0 12px 32px rgba(12, 14, 12, 0.08);
            --font: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--paper);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

        button,
        input {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4 {
            line-height: 1.25;
            margin: 0;
            font-weight: 700;
        }

        p {
            margin: 0;
        }

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

        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            padding: 0 16px;
            z-index: 1000;
            pointer-events: none;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s;
        }

        .nav-inner {
            max-width: 1200px;
            margin: 0 auto;
            min-height: 64px;
            padding: 0 10px 0 24px;
            border-radius: 999px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: rgba(12, 14, 12, 0.55);
            border: 1px solid rgba(255, 255, 255, 0.16);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            pointer-events: auto;
            transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .nav-scrolled .nav-inner {
            background: rgba(12, 14, 12, 0.82);
            border-color: rgba(255, 255, 255, 0.08);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.16);
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 800;
            font-size: 19px;
            letter-spacing: 0.01em;
            white-space: nowrap;
            transition: color 0.2s;
        }

        .logo-dot {
            width: 30px;
            height: 30px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            box-shadow: 0 0 0 3px rgba(198, 242, 78, 0.12), 0 4px 12px rgba(198, 242, 78, 0.25);
            flex: 0 0 auto;
            position: relative;
        }

        .Logo-dot::after {
            content: "";
            position: absolute;
            inset: 6px;
            border-radius: 6px;
            background: var(--ink);
        }

        .logo span:last-child {
            color: #fff;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
            margin-right: 6px;
        }

        .nav-links a {
            color: rgba(255, 255, 255, 0.76);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 16px;
            border-radius: 999px;
            transition: background 0.2s, color 0.2s;
        }

        .nav-links a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }

        .nav-links a.active {
            background: rgba(198, 242, 78, 0.16);
            color: var(--primary);
            font-weight: 600;
        }

        .nav-cta {
            background: var(--primary);
            color: var(--ink);
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            height: 40px;
            padding: 0 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background 0.25s, transform 0.2s, box-shadow 0.2s;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--primary-bright);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(198, 242, 78, 0.24);
        }

        .burger-btn {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.08);
            align-items: center;
            justify-content: center;
            cursor: pointer;
            position: relative;
            transition: background 0.2s;
        }

        .burger-btn span,
        .burger-btn span::before,
        .burger-btn span::after {
            content: "";
            position: absolute;
            width: 18px;
            height: 2px;
            background: #fff;
            border-radius: 4px;
            left: 11px;
            transition: transform 0.3s, opacity 0.3s;
        }

        .burger-btn span {
            top: 20px;
        }

        .burger-btn span::before {
            top: -6px;
        }

        .burger-btn span::after {
            top: 6px;
        }

        .burger-btn.is-open span {
            background: transparent;
        }

        .burger-btn.is-open span::before {
            transform: rotate(45deg);
            top: 0;
        }

        .burger-btn.is-open span::after {
            transform: rotate(-45deg);
            top: 0;
        }

        .mobile-menu {
            position: fixed;
            top: 92px;
            left: 16px;
            right: 16px;
            z-index: 999;
            background: rgba(15, 18, 15, 0.96);
            border: 1px solid var(--line-dark);
            border-radius: 24px;
            padding: 16px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
        }

        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mobile-menu a {
            display: block;
            padding: 13px 20px;
            color: rgba(255, 255, 255, 0.82);
            font-size: 16px;
            border-radius: 14px;
            transition: background 0.2s, color 0.2s;
        }

        .mobile-menu a.active {
            background: rgba(198, 242, 78, 0.12);
            color: var(--primary);
        }

        .mobile-menu a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .mobile-menu .mm-divider {
            height: 1px;
            background: var(--line-dark);
            margin: 10px 14px;
        }

        .page-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 168px 0 84px;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(12, 14, 12, 0.88) 10%, rgba(20, 23, 19, 0.72) 60%, rgba(61, 90, 69, 0.45) 100%);
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 24px;
        }

        .hero-tag::before {
            content: "";
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 0 3px rgba(198, 242, 78, 0.2);
        }

        .page-hero h1 {
            color: #fff;
            font-size: clamp(36px, 5vw, 56px);
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.2;
            margin: 0 auto 16px;
            max-width: 860px;
        }

        .hero-desc {
            color: rgba(255, 255, 255, 0.72);
            font-size: clamp(16px, 2vw, 19px);
            line-height: 1.7;
            max-width: 650px;
            margin: 0 auto 40px;
        }

        .hero-search {
            max-width: 720px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 999px;
            padding: 6px 6px 6px 24px;
            gap: 8px;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            transition: box-shadow 0.3s, border-color 0.3s;
        }

        .hero-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(198, 242, 78, 0.18);
        }

        .hero-search svg {
            flex: 0 0 auto;
            opacity: 0.7;
        }

        .hero-search input {
            flex: 1;
            min-width: 0;
            background: transparent;
            border: none;
            outline: none;
            color: #fff;
            font-size: 16px;
            padding: 10px 6px;
        }

        .hero-search input::placeholder {
            color: rgba(255, 255, 255, 0.48);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            font-weight: 600;
            height: 48px;
            padding: 0 28px;
            font-size: 15px;
            white-space: nowrap;
            cursor: pointer;
            border: 1px solid transparent;
            transition: background 0.2s, color 0.2s, transform 0.2s, box-shadow 0.2s, border-color 0.2s;
            letter-spacing: 0.02em;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--ink);
        }

        .btn-primary:hover {
            background: var(--primary-bright);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(198, 242, 78, 0.28);
        }

        .btn-light {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.26);
            color: #fff;
        }

        .btn-light:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.5);
        }

        .btn-line {
            background: transparent;
            border: 1px solid rgba(22, 26, 20, 0.4);
            color: var(--text);
        }

        .btn-line:hover {
            border-color: var(--text);
            background: var(--text);
            color: #fff;
        }

        .section {
            padding: 96px 0;
        }

        .section-head {
            text-align: left;
            max-width: 820px;
            margin-bottom: 56px;
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: #6B8F00;
            margin-bottom: 14px;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(198, 242, 78, 0.16);
        }

        .dark .section-eyebrow {
            color: var(--primary);
        }

        .section-head h2 {
            font-size: clamp(28px, 4vw, 38px);
            color: var(--text);
            font-weight: 800;
            letter-spacing: -0.01em;
        }

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

        .section-head p {
            font-size: 16px;
            color: var(--muted);
            margin-top: 14px;
            line-height: 1.8;
        }

        .dark .section-head p {
            color: rgba(255, 255, 255, 0.62);
        }

        .bg-light {
            background: var(--paper);
        }

        .bg-white {
            background: #fff;
        }

        .bg-dark {
            background: var(--ink);
        }

        .bg-panel {
            background: var(--panel);
        }

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

        .topic-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 30px 26px 24px;
            display: flex;
            flex-direction: column;
            transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .topic-card::after {
            content: "";
            position: absolute;
            width: 70px;
            height: 70px;
            right: -28px;
            top: -28px;
            border-radius: 50%;
            background: rgba(198, 242, 78, 0.10);
            transition: background 0.3s;
        }

        .topic-card:hover {
            border-color: rgba(198, 242, 78, 0.65);
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }

        .topic-card:hover::after {
            background: rgba(198, 242, 78, 0.18);
        }

        .topic-icon {
            width: 50px;
            height: 50px;
            border-radius: 15px;
            background: rgba(198, 242, 78, 0.18);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #6B8F00;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }

        .topic-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }

        .topic-card p {
            color: var(--muted);
            font-size: 14.5px;
            line-height: 1.7;
            flex: 1;
        }

        .topic-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            margin-top: 20px;
            font-size: 14.5px;
            color: #6B8F00;
            font-weight: 600;
            transition: gap 0.2s, color 0.2s;
        }

        .topic-link svg {
            transition: transform 0.2s;
        }

        .topic-card:hover .topic-link {
            gap: 9px;
        }

        .remind-block {
            background: var(--panel);
            border-radius: var(--radius-lg);
            padding: 32px 44px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .remind-block::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary);
        }

        .remind-text strong {
            display: block;
            font-size: 20px;
            color: #fff;
            margin-bottom: 6px;
        }

        .remind-text span {
            color: rgba(255, 255, 255, 0.68);
            font-size: 15px;
            line-height: 1.7;
        }

        .faq-area {
            background: var(--paper);
            padding: 96px 0;
        }

        .faq-wrap {
            display: grid;
            grid-template-columns: 0.82fr 1.4fr;
            gap: 56px;
            align-items: start;
        }

        .faq-sticky {
            position: sticky;
            top: 130px;
        }

        .faq-sticky h2 {
            font-size: clamp(28px, 3.8vw, 40px);
            margin: 10px 0 14px;
            color: var(--text);
        }

        .faq-sticky > p {
            color: var(--muted);
            margin-bottom: 24px;
            line-height: 1.8;
        }

        .faq-list {
            display: block;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 18px;
            overflow: hidden;
            margin-bottom: 14px;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .faq-item.open {
            border-color: rgba(198, 242, 78, 0.6);
            box-shadow: 0 8px 24px rgba(12, 14, 12, 0.06);
        }

        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            background: transparent;
            border: none;
            padding: 22px 26px;
            cursor: pointer;
            text-align: left;
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            transition: color 0.2s;
            line-height: 1.6;
        }

        .faq-q:hover {
            color: #6B8F00;
        }

        .faq-icon {
            width: 22px;
            height: 22px;
            flex: 0 0 auto;
            position: relative;
            border-radius: 50%;
            background: rgba(22, 26, 20, 0.06);
            transition: transform 0.3s, background 0.3s;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            top: 10px;
            left: 6px;
            width: 10px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: transform 0.3s, background 0.3s;
        }

        .faq-icon::after {
            width: 10px;
            height: 2px;
            transform: rotate(90deg);
        }

        .faq-item.open .faq-icon {
            background: rgba(198, 242, 78, 0.18);
            transform: rotate(45deg);
        }

        .faq-item.open .faq-icon::before,
        .faq-item.open .faq-icon::after {
            background: #6B8F00;
        }

        .faq-a {
            display: none;
            padding: 0 26px 24px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
        }

        .faq-item.open .faq-a {
            display: block;
        }

        .faq-side-note {
            border-radius: 18px;
            padding: 22px 24px;
            border: 1px solid var(--line);
            background: #fff;
            margin-top: 20px;
        }

        .faq-side-note strong {
            display: block;
            color: var(--text);
            font-size: 16px;
            margin-bottom: 8px;
        }

        .faq-side-note p {
            color: var(--muted);
            font-size: 14px;
            margin-bottom: 14px;
        }

        .faq-side-note a {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-weight: 600;
            color: #6B8F00;
        }

        .contact-panel {
            background: var(--ink);
            border-radius: 28px;
            overflow: hidden;
            color: #fff;
            position: relative;
            isolation: isolate;
        }

        .contact-panel::before {
            content: "";
            position: absolute;
            inset: 0;
            z-index: -1;
            background: radial-gradient(circle at 10% 20%, rgba(198, 242, 78, 0.10), transparent 40%),
                linear-gradient(130deg, rgba(12, 14, 12, 1), rgba(20, 23, 19, 1));
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            align-items: center;
        }

        .contact-copy {
            padding: 64px 56px;
        }

        .contact-copy h2 {
            font-size: clamp(28px, 3.5vw, 42px);
            margin: 0 0 14px;
            color: #fff;
        }

        .contact-copy .intro {
            color: rgba(255, 255, 255, 0.68);
            margin-bottom: 32px;
            max-width: 500px;
        }

        .channel {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 18px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .channel:first-of-type {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .channel-icon {
            width: 44px;
            height: 44px;
            flex: 0 0 auto;
            border-radius: 14px;
            background: rgba(198, 242, 78, 0.14);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .channel strong {
            color: #fff;
            font-size: 16px;
            display: block;
            margin-bottom: 4px;
        }

        .channel p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.62);
            line-height: 1.6;
        }

        .channel a {
            color: var(--primary);
            font-weight: 600;
        }

        .contact-figure {
            position: relative;
            padding: 36px 44px 36px 0;
        }

        .contact-figure img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 480px;
            border-radius: 24px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 30px 54px rgba(0, 0, 0, 0.35);
        }

        .contact-badge {
            position: absolute;
            bottom: 30px;
            left: -14px;
            background: var(--primary);
            color: var(--ink);
            font-size: 14px;
            font-weight: 700;
            padding: 12px 18px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 14px 30px rgba(0, 0, 0, 0.22);
        }

        .final-cta {
            background: var(--ink);
            padding: 56px 0;
        }

        .final-box {
            background: linear-gradient(90deg, var(--panel), #171A16);
            border-radius: 24px;
            padding: 42px 48px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            border: 1px solid var(--line-dark);
        }

        .final-box h2 {
            font-size: 26px;
        }

        .final-box p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
        }

        .footer-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .site-footer {
            background: var(--ink);
            border-top: 1px solid var(--line-dark);
            padding: 64px 0 0;
            color: rgba(255, 255, 255, 0.62);
        }

        .site-footer .logo {
            color: #fff;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.3fr;
            gap: 48px;
            padding-bottom: 44px;
        }

        .footer-brand p {
            font-size: 14.5px;
            line-height: 1.8;
            max-width: 380px;
            margin-top: 0;
            color: rgba(255, 255, 255, 0.58);
        }

        .site-footer .footer-grid h4 {
            color: #fff;
            font-size: 15px;
            margin-bottom: 16px;
            font-weight: 600;
        }

        .site-footer .footer-grid ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer .footer-grid ul li {
            margin-bottom: 10px;
        }

        .site-footer .footer-grid ul a,
        .site-footer .footer-grid ul li {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.62);
            line-height: 1.6;
            transition: color 0.2s;
        }

        .site-footer .footer-grid ul a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            color: rgba(255, 255, 255, 0.4);
            font-size: 12.5px;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }

            .burger-btn {
                display: inline-flex;
            }

            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .faq-wrap {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .faq-sticky {
                position: static;
            }

            .contact-grid {
                grid-template-columns: 1fr;
            }

            .contact-figure {
                display: none;
            }

            .contact-copy {
                padding: 48px 40px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 148px 0 60px;
            }

            .section {
                padding: 64px 0;
            }

            .faq-area {
                padding: 64px 0 0;
            }

            .faq-q {
                padding: 18px 18px;
                font-size: 15.5px;
            }

            .faq-a {
                padding: 0 18px 20px;
                font-size: 14px;
            }

            .remind-block {
                padding: 28px 24px;
            }

            .contact-copy {
                padding: 36px 24px;
            }

            .final-box {
                padding: 30px 24px;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .topic-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .footer-bottom {
                align-items: flex-start;
                flex-direction: column;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation: none !important;
                transition: none !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: article */
:root {
            --primary: #C6F24E;
            --primary-soft: #D8F77C;
            --primary-deep: #5D8200;
            --secondary: #3D5A45;
            --ink: #0C0E0C;
            --ink-soft: #141713;
            --ink-border: #2A2F28;
            --paper: #F5F6F2;
            --white: #FFFFFF;
            --text-main: #161A14;
            --text-sub: #5B6270;
            --text-weak: #9CA3AF;
            --line: #E4E7DE;
            --green-deep: #2E9E5B;
            --danger: #D14343;
            --radius-card: 20px;
            --radius-pill: 999px;
            --font-main: 'Inter', 'PingFang SC', 'HarmonyOS Sans SC', 'Source Han Sans SC', 'Microsoft YaHei', sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-main);
            background: var(--paper);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

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

        .container {
            width: 100% !important;
            max-width: 1200px !important;
            margin-left: auto !important;
            margin-right: auto !important;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        @media (max-width: 640px) {
            .container,
            .site-container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 悬浮胶囊导航 ===== */
        .site-header {
            position: fixed;
            top: 12px;
            left: 12px;
            right: 12px;
            z-index: 90;
            pointer-events: none;
        }

        .site-header .nav-inner {
            pointer-events: auto;
            max-width: 1200px;
            height: 62px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            background: rgba(12, 14, 12, 0.58);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            padding: 6px 6px 6px 22px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: background 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
        }

        .site-header.scrolled .nav-inner {
            background: rgba(12, 14, 12, 0.88);
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.22);
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: -0.01em;
            white-space: nowrap;
            line-height: 1;
        }

        .logo .logo-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 0 4px rgba(198, 242, 78, 0.15), 0 0 18px rgba(198, 242, 78, 0.5);
            flex: none;
        }

        .nav-links {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
            margin: 0 auto;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 16px;
            border-radius: 999px;
            color: #CBD2C5;
            font-size: 15px;
            font-weight: 500;
            line-height: 1;
            transition: background 0.25s cubic-bezier(0.4, 0, 0.2, 1), color 0.25s ease, transform 0.25s ease;
        }

        .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-links a.active {
            background: var(--primary);
            color: var(--ink);
            font-weight: 700;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 24px;
            background: var(--primary);
            border-radius: 999px;
            color: var(--ink);
            font-size: 15px;
            font-weight: 700;
            white-space: nowrap;
            box-shadow: 0 8px 24px rgba(198, 242, 78, 0.22);
            transition: background 0.25s cubic-bezier(0.4, 0, 0.2, 1), transform 0.25s ease, box-shadow 0.25s ease;
        }

        .nav-cta:hover {
            background: var(--primary-soft);
            transform: translateY(-1px);
            box-shadow: 0 12px 30px rgba(198, 242, 78, 0.32);
        }

        .burger-btn {
            display: none;
            width: 46px;
            height: 46px;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            position: relative;
            cursor: pointer;
            flex: none;
        }

        .burger-btn span {
            display: block;
            width: 18px;
            height: 2px;
            background: #fff;
            border-radius: 4px;
            position: relative;
            transition: background 0.2s;
        }

        .burger-btn span::before,
        .burger-btn span::after {
            content: "";
            position: absolute;
            left: 0;
            width: 18px;
            height: 2px;
            background: #fff;
            border-radius: 4px;
        }

        .burger-btn span::before {
            top: -6px;
        }

        .burger-btn span::after {
            top: 6px;
        }

        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .burger-btn {
                display: inline-flex;
            }

            .logo {
                font-size: 18px;
            }
        }

        @media (max-width: 520px) {
            .site-header {
                top: 8px;
                left: 8px;
                right: 8px;
            }

            .site-header .nav-inner {
                height: 58px;
                padding-left: 16px;
                border-radius: 28px;
            }
        }

        /* ===== 移动端抽屉 ===== */
        .mobile-menu {
            position: fixed;
            inset: 0;
            z-index: 95;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 10px;
            background: rgba(12, 14, 12, 0.97);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.3s;
            padding: 32px 24px;
        }

        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-menu a {
            color: #F3F5F0;
            font-size: 21px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 999px;
            transition: background 0.25s ease, color 0.25s ease;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
            background: rgba(255, 255, 255, 0.08);
        }

        .mm-close {
            position: absolute;
            top: 26px;
            right: 26px;
            width: 48px;
            height: 48px;
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 999px;
            background: transparent;
            color: #fff;
            font-size: 20px;
            cursor: pointer;
            transition: border-color 0.2s, color 0.2s;
        }

        .mm-close:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        @media (min-width: 1024px) {
            .mobile-menu {
                display: none;
            }
        }

        /* ===== 文章首屏头部 ===== */
        .article-hero {
            position: relative;
            color: #fff;
            background: linear-gradient(135deg, rgba(12, 14, 12, 0.88) 0%, rgba(20, 23, 19, 0.76) 58%, rgba(61, 90, 69, 0.5) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 176px 0 112px;
            overflow: hidden;
        }

        .article-hero::before {
            content: "";
            position: absolute;
            top: -12%;
            left: -8%;
            width: 46%;
            height: 60%;
            background: radial-gradient(closest-side, rgba(198, 242, 78, 0.14), transparent);
            pointer-events: none;
        }

        .article-hero .container {
            position: relative;
            z-index: 1;
        }

        .crumbs {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: #A0A8A0;
            margin-bottom: 28px;
        }

        .crumbs a {
            color: #CBD2C5;
            transition: color 0.2s;
        }

        .crumbs a:hover {
            color: var(--primary);
        }

        .crumbs .sep {
            color: rgba(255, 255, 255, 0.35);
        }

        .crumbs .current {
            color: #fff;
            max-width: 360px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-hero h1 {
            font-size: clamp(34px, 5vw, 64px);
            font-weight: 800;
            line-height: 1.18;
            letter-spacing: -0.02em;
            color: #fff;
            max-width: 960px;
            margin: 0 0 26px;
            text-wrap: balance;
        }

        .meta-line {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px 20px;
            color: #A0A8A0;
            font-size: 14px;
        }

        .meta-line .dot-sep {
            display: inline-block;
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--primary);
            margin-right: 14px;
            vertical-align: middle;
        }

        @media (max-width: 768px) {
            .article-hero {
                padding: 146px 0 74px;
            }

            .crumbs .current {
                max-width: 240px;
                white-space: normal;
            }
        }

        /* ===== 文章正文卡片 ===== */
        .article-main {
            background: var(--paper);
            padding-bottom: 90px;
            padding-top: 0;
        }

        .article-card {
            max-width: 880px;
            margin: -40px auto 0;
            position: relative;
            z-index: 2;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 28px;
            box-shadow: 0 30px 80px rgba(12, 14, 12, 0.06);
            padding: 52px 56px;
        }

        @media (max-width: 768px) {
            .article-card {
                margin-top: -24px;
                border-radius: 18px;
                padding: 30px 20px;
            }
        }

        .article-body {
            max-width: 720px;
            margin: 0 auto;
        }

        .article-body h2 {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            letter-spacing: -0.01em;
            margin: 44px 0 16px;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin: 30px 0 12px;
        }

        .article-body p {
            font-size: 16px;
            line-height: 2;
            color: #3A413C;
            margin-bottom: 22px;
        }

        .article-body ul,
        .article-body ol {
            margin: 18px 0 24px;
            padding-left: 22px;
            color: #3A413C;
            line-height: 1.9;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body a {
            color: var(--primary-deep);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color 0.2s;
        }

        .article-body a:hover {
            color: #426B00;
        }

        .article-body img {
            width: auto;
            max-width: 100%;
            border-radius: 14px;
            margin: 26px 0;
            border: 1px solid rgba(12, 14, 12, 0.08);
        }

        .article-body blockquote {
            margin: 26px 0;
            padding: 18px 22px;
            border-left: 4px solid var(--primary);
            background: #F4F6EF;
            border-radius: 0 14px 14px 0;
            color: #57605A;
            line-height: 1.9;
        }

        .article-body blockquote p {
            margin-bottom: 0;
        }

        .article-body code {
            background: #EEF1E9;
            border-radius: 6px;
            padding: 2px 8px;
            font-size: 0.9em;
        }

        .tag-row {
            max-width: 720px;
            margin: 44px auto 34px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            border-top: 1px solid var(--line);
            padding-top: 28px;
        }

        .tag-row-label {
            font-size: 14px;
            color: var(--text-weak);
            margin-right: 4px;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 7px 18px;
            border: 1px solid #E0E4D9;
            background: #F4F6F0;
            border-radius: 999px;
            color: var(--text-sub);
            font-size: 13px;
            transition: border-color 0.2s, color 0.2s, background 0.2s;
        }

        .tag-pill:hover {
            border-color: var(--primary);
            color: var(--primary-deep);
            background: rgba(198, 242, 78, 0.08);
        }

        .prev-next {
            max-width: 720px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
            border-top: 1px solid var(--line);
            padding-top: 30px;
        }

        .pn-link {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding: 18px 20px;
            border: 1px solid var(--line);
            border-radius: 16px;
            background: #FBFCFA;
            transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
        }

        .pn-link.next {
            align-items: flex-end;
            text-align: right;
        }

        .pn-link .pn-label {
            font-size: 13px;
            color: var(--text-weak);
        }

        .pn-link .pn-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
        }

        .pn-link:hover {
            transform: translateY(-2px);
            border-color: rgba(198, 242, 78, 0.8);
            box-shadow: 0 10px 28px rgba(12, 14, 12, 0.06);
        }

        .pn-link:hover .pn-title {
            color: var(--primary-deep);
        }

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

            .pn-link.next {
                align-items: flex-start;
                text-align: left;
            }
        }

        /* ===== 相关推荐卡片 ===== */
        .related-section {
            background: var(--paper);
            padding: 20px 0 80px;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 34px;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-deep);
            letter-spacing: 0.04em;
            margin-bottom: 8px;
        }

        .section-eyebrow::before {
            content: "";
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 4px;
        }

        .section-head h2 {
            font-size: clamp(26px, 3vw, 38px);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin: 0;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            display: flex;
            flex-direction: column;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 20px;
            overflow: hidden;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s, box-shadow 0.3s;
        }

        .related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(198, 242, 78, 0.6);
            box-shadow: 0 18px 44px rgba(12, 14, 12, 0.08);
        }

        .related-thumb {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #EAEDE5;
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .related-card:hover .related-thumb img {
            transform: scale(1.04);
        }

        .related-info {
            display: flex;
            flex-direction: column;
            padding: 22px;
            flex: 1;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            width: max-content;
            padding: 5px 13px;
            border-radius: 999px;
            background: rgba(198, 242, 78, 0.14);
            color: var(--primary-deep);
            font-size: 12px;
            font-weight: 600;
        }

        .related-info h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-main);
            margin: 14px 0 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card:hover .related-info h3 {
            color: var(--primary-deep);
        }

        .related-info p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .read-more {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-deep);
            transition: gap 0.25s ease;
        }

        .read-more:hover {
            gap: 10px;
        }

        @media (max-width: 1023px) {
            .related-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

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

            .section-head {
                align-items: flex-start;
                flex-direction: column;
            }
        }

        /* ===== CTA 轻量横条 ===== */
        .article-cta {
            background: linear-gradient(120deg, #0C0E0C 0%, #141713 55%, #1E241C 100%);
            padding: 54px 24px;
            border-radius: 28px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .article-cta::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -8%;
            width: 300px;
            height: 300px;
            background: radial-gradient(closest-side, rgba(198, 242, 78, 0.16), transparent);
        }

        .article-cta h2 {
            color: #fff;
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 0 0 10px;
        }

        .article-cta p {
            color: #A0A8A0;
            font-size: 16px;
            margin: 0 0 26px;
        }

        .btn-group {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 48px;
            padding: 0 32px;
            background: var(--primary);
            border: 2px solid var(--primary);
            border-radius: 999px;
            color: var(--ink);
            font-size: 16px;
            font-weight: 700;
            line-height: 1;
            transition: background 0.25s cubic-bezier(0.4, 0, 0.2, 1), transform 0.25s, box-shadow 0.25s, color 0.25s;
        }

        .btn-primary:hover {
            background: var(--primary-soft);
            border-color: var(--primary-soft);
            transform: translateY(-1px);
            box-shadow: 0 10px 26px rgba(198, 242, 78, 0.25);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(198, 242, 78, 0.45);
            outline-offset: 2px;
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 48px;
            padding: 0 32px;
            border: 2px solid rgba(255, 255, 255, 0.7);
            border-radius: 999px;
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            line-height: 1;
            transition: background 0.25s, border-color 0.25s, color 0.25s, transform 0.25s;
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-1px);
        }

        /* ===== 内容未找到 ===== */
        .not-found-section {
            background: var(--paper);
            min-height: 72vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 150px 24px 70px;
        }

        .nf-inner {
            max-width: 620px;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 24px;
            padding: 48px 32px;
            text-align: center;
            box-shadow: 0 18px 44px rgba(12, 14, 12, 0.05);
        }

        .nf-inner h1 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-main);
            margin: 0 0 10px;
        }

        .nf-inner p {
            color: var(--text-sub);
            font-size: 16px;
            margin-bottom: 26px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--ink);
            color: #A0A8A0;
            padding-top: 60px;
            border-top: 1px solid var(--ink-border);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2.2fr 1fr 1fr 1.2fr;
            gap: 46px;
            padding-bottom: 48px;
        }

        .footer-brand .logo {
            color: #fff;
            font-size: 20px;
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 14px;
            color: #A0A8A0;
            line-height: 1.9;
            max-width: 340px;
            margin: 0;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 16px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col li {
            margin-bottom: 10px;
            font-size: 14px;
        }

        .footer-col a {
            color: #A0A8A0;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            border-top: 1px solid var(--ink-border);
            padding: 18px 0;
            font-size: 12px;
            color: #707870;
        }

        @media (max-width: 1023px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 34px;
            }
        }

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

        /* ===== 右下角浮动 CTA ===== */
        .floating-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 80;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 56px;
            padding: 0 30px;
            border-radius: 999px;
            background: var(--primary);
            color: var(--ink);
            font-size: 16px;
            font-weight: 700;
            line-height: 1;
            box-shadow: 0 12px 34px rgba(198, 242, 78, 0.35);
            opacity: 0;
            visibility: hidden;
            transform: translateY(16px);
            transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.3s, transform 0.3s, background 0.25s;
        }

        .floating-cta.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .floating-cta:hover {
            background: var(--primary-soft);
        }

        @media (max-width: 640px) {
            .floating-cta {
                right: 16px;
                bottom: 16px;
                height: 52px;
                padding: 0 24px;
                font-size: 15px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.001s !important;
                transition-duration: 0.001s !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category3 */
:root {
            --ink: #0C0E0C;
            --ink2: #141713;
            --paper: #F5F6F2;
            --white: #FFFFFF;
            --line: #E2E6DD;
            --text: #1A1E18;
            --muted: #5B6270;
            --faint: #9CA3AF;
            --brand: #C6F24E;
            --brand-deep: #3D5A45;
            --green-deep: #6D8A1E;
            --success: #2E9E5B;
            --danger: #D14343;
            --radius: 20px;
            --shadow-card: 0 12px 32px rgba(12, 14, 12, 0.07);
            --ease: cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 110px;
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

        body {
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
            background: var(--paper);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s var(--ease), background-color .2s var(--ease), border-color .2s var(--ease);
        }

        button,
        input,
        select,
        textarea {
            font: inherit;
            color: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .skip-link {
            position: fixed;
            top: 12px;
            left: 12px;
            z-index: 300;
            background: var(--brand);
            color: var(--ink);
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 14px;
            transform: translateY(-160%);
            transition: transform .2s var(--ease);
        }

        .skip-link:focus-visible {
            transform: translateY(0);
        }

        .container {
            width: min(1200px, 100% - 48px);
            margin-inline: auto;
        }

        .section-block {
            padding: 88px 0;
        }

        .h2-title {
            font-size: clamp(26px, 4vw, 38px);
            line-height: 1.24;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text);
        }

        .h3-card {
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.85;
            color: var(--muted);
            margin-top: 14px;
        }

        .text-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink);
            background: rgba(198, 242, 78, .22);
            border: 1px solid rgba(198, 242, 78, .5);
            padding: 6px 14px;
            border-radius: 999px;
            letter-spacing: .04em;
        }

        .text-kicker-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--brand);
            background: rgba(198, 242, 78, .1);
            border: 1px solid rgba(198, 242, 78, .22);
            padding: 6px 14px;
            border-radius: 999px;
            letter-spacing: .04em;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 14px;
            left: 16px;
            right: 16px;
            z-index: 200;
            pointer-events: none;
        }

        .site-header.scrolled .nav-inner {
            background: rgba(12, 14, 12, .74);
            box-shadow: 0 12px 32px rgba(0, 0, 0, .18);
        }

        .nav-inner {
            pointer-events: auto;
            max-width: 1200px;
            margin-inline: auto;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 0 14px 0 24px;
            border: 1px solid rgba(255, 255, 255, .1);
            background: rgba(12, 14, 12, .24);
            border-radius: 999px;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            transition: background-color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #FFFFFF;
            font-size: 17px;
            font-weight: 700;
            letter-spacing: .01em;
            white-space: nowrap;
        }

        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--brand);
            box-shadow: 0 0 0 5px rgba(198, 242, 78, .14);
            flex: none;
        }

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            height: 42px;
            padding: 0 18px;
            border-radius: 999px;
            font-size: 14.5px;
            font-weight: 500;
            color: rgba(255, 255, 255, .82);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .1);
        }

        .nav-links a.active {
            color: var(--ink);
            background: var(--brand);
            font-weight: 600;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: 999px;
            background: var(--brand);
            color: var(--ink);
            font-size: 15px;
            font-weight: 600;
            transition: transform .2s var(--ease), box-shadow .2s var(--ease), background-color .2s var(--ease);
        }

        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(198, 242, 78, .22);
            background-color: #D5F767;
        }

        .burger-btn {
            display: none;
            width: 44px;
            height: 44px;
            position: relative;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
        }

        .burger-btn span,
        .burger-btn::before,
        .burger-btn::after {
            content: "";
            position: absolute;
            right: 11px;
            left: 11px;
            height: 2px;
            background: #fff;
            border-radius: 4px;
            transition: all .25s var(--ease);
        }

        .burger-btn::before {
            top: 15px;
        }

        .burger-btn span {
            top: 21px;
        }

        .burger-btn::after {
            top: 27px;
        }

        .burger-btn.open::before {
            transform: rotate(45deg);
            top: 21px;
        }

        .burger-btn.open span {
            opacity: 0;
        }

        .burger-btn.open::after {
            transform: rotate(-45deg);
            top: 21px;
        }

        .mobile-panel {
            display: none;
            position: fixed;
            inset: 0 0 0 auto;
            width: min(320px, 88vw);
            height: 100dvh;
            background: rgba(9, 11, 9, .96);
            border-left: 1px solid rgba(255, 255, 255, .08);
            padding: 110px 30px 40px;
            flex-direction: column;
            gap: 8px;
            z-index: 199;
            transform: translateX(100%);
            transition: transform .3s var(--ease);
        }

        .mobile-panel.open {
            transform: translateX(0);
        }

        .mobile-panel a {
            display: block;
            padding: 13px 16px;
            border-radius: 18px;
            color: rgba(255, 255, 255, .88);
            font-size: 17px;
            border: 1px solid transparent;
        }

        .mobile-panel a:hover,
        .mobile-panel a.active {
            color: var(--brand);
            background: rgba(255, 255, 255, .08);
        }

        @media (max-width: 899px) {
            .nav-links,
            .nav-cta {
                display: none;
            }
            .burger-btn {
                display: block;
            }
            .mobile-panel {
                display: flex;
            }
            body.menu-open .mobile-panel {
                transform: translateX(0);
            }
            body.menu-open .float-cta {
                opacity: 0;
                visibility: hidden;
            }
        }

        /* ===== hero ===== */
        .hero-page {
            background-color: var(--ink);
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 620px;
            display: flex;
            align-items: center;
            position: relative;
            padding: 150px 0 90px;
            isolation: isolate;
            color: #fff;
        }

        .hero-page::before {
            content: "";
            position: absolute;
            inset: 0;
            z-index: -1;
            background: linear-gradient(90deg, rgba(9, 11, 9, .9) 0%, rgba(9, 11, 9, .7) 48%, rgba(12, 14, 12, .34) 100%);
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .64);
            margin-bottom: 24px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, .78);
        }

        .breadcrumb a:hover {
            color: var(--brand);
        }

        .breadcrumb i {
            font-style: normal;
            color: rgba(255, 255, 255, .4);
        }

        .hero-title {
            font-size: clamp(40px, 6vw, 68px);
            line-height: 1.16;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 18px 0 20px;
            max-width: 900px;
        }

        .hero-sub {
            max-width: 660px;
            font-size: 19px;
            line-height: 1.85;
            color: rgba(255, 255, 255, .82);
        }

        .hero-mini {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 34px;
        }

        .hero-mini-item {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            font-size: 15px;
            color: rgba(255, 255, 255, .82);
        }

        .hero-mini-item::before {
            content: "";
            width: 9px;
            height: 9px;
            background: var(--brand);
            border-radius: 50%;
            box-shadow: 0 0 0 5px rgba(198, 242, 78, .16);
        }

        /* ===== quick service cards ===== */
        .quick-card {
            display: block;
            background: #fff;
            border-radius: var(--radius);
            padding: 28px 26px;
            border: 1px solid var(--line);
            transition: transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
        }

        .quick-card:hover {
            transform: translateY(-4px);
            border-color: rgba(198, 242, 78, .7);
            box-shadow: var(--shadow-card);
        }

        .quick-icon {
            width: 48px;
            height: 48px;
            border-radius: 16px;
            background: rgba(198, 242, 78, .14);
            color: #667D18;
            display: grid;
            place-items: center;
            margin-bottom: 18px;
        }

        .quick-card-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }

        .quick-card-desc {
            color: var(--muted);
            font-size: 14.5px;
            line-height: 1.75;
        }

        /* ===== search ===== */
        .search-panel {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 28px;
            box-shadow: var(--shadow-card);
            padding: 30px;
        }

        .search-form {
            display: flex;
            align-items: center;
            gap: 12px;
            background: #F4F6F0;
            border: 1px solid #E0E4D9;
            padding: 6px 6px 6px 18px;
            border-radius: 999px;
            transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
        }

        .search-form:focus-within {
            border-color: var(--brand);
            box-shadow: 0 0 0 5px rgba(198, 242, 78, .22);
            background: #fff;
        }

        .search-form input {
            border: 0;
            background: transparent;
            flex: 1;
            min-width: 0;
            font-size: 15px;
            outline: none;
        }

        .search-form input::placeholder {
            color: var(--faint);
        }

        .search-btn {
            height: 46px;
            padding: 0 26px;
            border-radius: 999px;
            background: var(--brand);
            color: var(--ink);
            font-weight: 600;
            font-size: 15px;
            transition: all .2s var(--ease);
            white-space: nowrap;
        }

        .search-btn:hover {
            background: #D6F868;
        }

        .hot-search {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }

        .hot-label {
            color: var(--faint);
            font-size: 13px;
        }

        .tag-chip {
            border: 1px solid var(--line);
            color: #555E4E;
            background: #fff;
            border-radius: 999px;
            padding: 5px 12px;
            font-size: 13px;
            line-height: 1.4;
            transition: all .2s var(--ease);
        }

        .tag-chip:hover {
            border-color: var(--brand-deep);
            color: #455048;
            background: #F8FCF0;
        }

        /* ===== doc list dark ===== */
        .block-darklist {
            background: var(--ink);
            color: #fff;
            border-radius: 0;
        }

        .doc-list-img {
            position: relative;
            border-radius: 26px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, .1);
            min-height: 340px;
        }

        .doc-list-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .doc-list-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(12, 14, 12, .62), transparent 42%);
        }

        .doc-badge {
            position: absolute;
            left: 18px;
            bottom: 18px;
            right: 18px;
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            z-index: 2;
            padding-left: 15px;
            border-left: 3px solid var(--brand);
        }

        .topic-list {
            display: grid;
            gap: 0;
        }

        .topic-list-row {
            display: flex;
            align-items: center;
            align-content: center;
            gap: 16px;
            padding: 17px 4px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            color: rgba(255, 255, 255, .88);
            transition: color .2s var(--ease), padding-left .2s var(--ease);
        }

        .topic-list-row:first-child {
            padding-top: 0;
        }

        .topic-list-row:hover {
            color: var(--brand);
            padding-left: 8px;
        }

        .topic-index {
            color: rgba(255, 255, 255, .34);
            font-family: Inter, "DIN Alternate", monospace;
            font-size: 14px;
            letter-spacing: .02em;
            font-weight: 600;
            width: 30px;
            flex: none;
        }

        .topic-title {
            flex: 1;
            font-size: 16.5px;
            font-weight: 500;
        }

        .topic-arrow {
            color: var(--brand);
            opacity: .8;
        }

        .dark-note {
            color: rgba(255, 255, 255, .72);
            font-size: 15px;
            line-height: 1.9;
            margin-top: 26px;
        }

        .link-brand {
            color: var(--brand);
            font-weight: 500;
            transition: color .2s var(--ease);
        }

        .link-brand:hover {
            color: #E6FC92;
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        /* ===== FAQ ===== */
        .faq-layout {
            display: grid;
            grid-template-columns: 340px 1fr;
            gap: 68px;
        }

        .faq-sticky {
            position: sticky;
            top: 126px;
            align-self: start;
        }

        .faq-item {
            border-bottom: 1px solid var(--line);
        }

        .faq-item:first-of-type {
            border-top: 1px solid var(--line);
        }

        .faq-q {
            width: 100%;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 21px 6px 20px;
            text-align: left;
            color: var(--text);
            font-size: 16.5px;
            font-weight: 600;
            line-height: 1.55;
        }

        .faq-q .icon {
            flex: none;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            border: 1px solid var(--line);
            display: grid;
            place-items: center;
            font-size: 18px;
            line-height: 1;
            color: var(--muted);
            margin-top: 2px;
            transition: transform .25s var(--ease), background-color .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
        }

        .faq-q .q-text {
            flex: 1;
        }

        .faq-answer {
            display: none;
            padding: 0 28px 24px 36px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.85;
        }

        .faq-item.open .faq-q {
            color: #334D0B;
        }

        .faq-item.open .icon {
            transform: rotate(45deg);
            background: var(--brand);
            border-color: var(--brand);
            color: var(--ink);
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-help-card {
            background: #101310;
            border-radius: 22px;
            padding: 28px;
            color: #fff;
            margin-top: 32px;
            border: 1px solid rgba(198, 242, 78, .2);
        }

        .faq-help-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .faq-help-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, .74);
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .btn-white-line {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 46px;
            padding: 0 24px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, .3);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            transition: all .2s var(--ease);
        }

        .btn-white-line:hover {
            background: rgba(255, 255, 255, .1);
            border-color: var(--brand);
            color: var(--brand);
        }

        /* ===== contact card ===== */
        .block-contact {
            position: relative;
            background-color: var(--ink2);
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }

        .block-contact::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(12, 14, 12, .96) 22%, rgba(17, 22, 16, .82) 60%, rgba(12, 14, 12, .52));
        }

        .contact-grid {
            position: relative;
            display: grid;
            grid-template-columns: .9fr 1.1fr;
            gap: 60px;
            align-items: center;
        }

        .contact-card-list {
            display: grid;
            gap: 14px;
        }

        .contact-row {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .12);
            padding: 18px 20px;
            border-radius: 18px;
            backdrop-filter: blur(8px);
        }

        .contact-row-icon {
            width: 40px;
            height: 40px;
            border-radius: 14px;
            background: var(--brand);
            color: var(--ink);
            display: grid;
            place-items: center;
            flex: none;
        }

        .contact-row-copy {
            flex: 1;
        }

        .contact-row-copy b {
            display: block;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 3px;
        }

        .contact-row-copy span,
        .contact-row-copy a {
            font-size: 15px;
            color: rgba(255, 255, 255, .78);
            word-break: break-all;
        }

        .contact-row-copy a:hover {
            color: var(--brand);
        }

        /* ===== footer ===== */
        .site-footer {
            background: var(--ink);
            color: rgba(255, 255, 255, .82);
            padding: 70px 0 28px;
            border-top: 1px solid #283029;
        }

        .site-footer .container {
            max-width: 1200px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 44px;
            padding-bottom: 44px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, .64);
            font-size: 14px;
            line-height: 1.85;
            max-width: 330px;
            margin-top: 12px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: .02em;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col li {
            margin-bottom: 9px;
        }

        .footer-col a,
        .footer-col li {
            color: rgba(255, 255, 255, .64);
            font-size: 14px;
            line-height: 1.5;
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            border-top: 1px solid #283029;
            padding-top: 24px;
            color: rgba(255, 255, 255, .4);
            font-size: 13px;
        }

        /* ===== float CTA ===== */
        .float-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 160;
            height: 54px;
            padding: 0 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            background: var(--brand);
            color: var(--ink);
            font-weight: 600;
            font-size: 15px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, .25);
            transition: transform .2s var(--ease), background-color .2s var(--ease);
            opacity: 0;
            visibility: hidden;
            transform: translateY(14px);
        }

        .float-cta.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .float-cta:hover {
            background: #D6F868;
            transform: translateY(-2px);
        }

        /* ===== reveal ===== */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity .6s var(--ease), transform .6s var(--ease);
        }

        .reveal.is-visible {
            opacity: 1;
            transform: none;
        }

        /* ===== responsive ===== */
        @media (max-width: 1023px) {
            .section-block {
                padding: 68px 0;
            }
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .faq-sticky {
                position: static;
            }
            .faq-help-card {
                margin-top: 0;
            }
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 34px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 34px;
            }
            .hero-page {
                min-height: 580px;
                padding: 140px 0 70px;
            }
        }

        @media (max-width: 767px) {
            .container {
                width: calc(100% - 32px);
            }
            .section-block {
                padding: 54px 0;
            }
            .nav-inner {
                height: 60px;
                padding-left: 16px;
                padding-right: 8px;
            }
            .logo {
                font-size: 15px;
            }
            .logo-dot {
                width: 9px;
                height: 9px;
            }
            .hero-title {
                font-size: 34px;
                letter-spacing: 0;
            }
            .hero-sub {
                font-size: 16px;
            }
            .hero-page {
                min-height: 540px;
                padding: 120px 0 64px;
            }
            .search-panel {
                padding: 20px;
                border-radius: 22px;
            }
            .search-form {
                flex-wrap: wrap;
                padding: 8px;
                border-radius: 24px;
            }
            .search-form input {
                padding: 6px 10px;
                height: 38px;
            }
            .search-btn {
                width: 100%;
                height: 44px;
            }
            .faq-q {
                font-size: 15.5px;
            }
            .faq-answer {
                padding: 0 8px 18px 32px;
                font-size: 14.5px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }
            .footer-bottom {
                flex-direction: column;
            }
            .float-cta {
                right: 16px;
                bottom: 16px;
                left: 16px;
                width: auto;
                max-width: none;
                justify-content: center;
                padding: 0 20px;
            }
        }

        .order-badge {
            font-variant-numeric: tabular-nums;
            font-feature-settings: "tnum";
        }

/* roulang page: category2 */
:root{
    --primary:#C6F24E;
    --primary-hover:#D6F86A;
    --primary-deep:#6B8F00;
    --secondary:#3D5A45;
    --ink:#0C0E0C;
    --ink-soft:#141713;
    --paper:#F5F6F2;
    --white:#FFFFFF;
    --text-main:#161A14;
    --text-sub:#5B6270;
    --text-muted:#9CA3AF;
    --border-light:#E4E7DE;
    --border-dark:#2A2F28;
    --radius-xl:24px;
    --radius-lg:20px;
    --radius-md:14px;
    --shadow-card:0 12px 32px rgba(12,14,12,0.08);
    --transition:cubic-bezier(0.4, 0, 0.2, 1) 200ms;
  }

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

  html{
    scroll-behavior:smooth;
  }

  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.75;
    background:var(--paper);
    color:var(--text-main);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }

  body.menu-open{
    overflow:hidden;
  }

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

  a{
    color:inherit;
    text-decoration:none;
  }

  button{
    font-family:inherit;
    cursor:pointer;
  }

  ul{
    list-style:none;
    margin:0;
    padding:0;
  }

  h1,h2,h3,h4,h5,p{
    margin:0;
  }

  [id]{
    scroll-margin-top:128px;
  }

  :focus-visible{
    outline:3px solid rgba(198,242,78,0.65);
    outline-offset:3px;
    border-radius:6px;
  }

  .container{
    width:min(1200px, calc(100% - 48px));
    margin-inline:auto;
  }

  .section{
    padding:96px 0;
  }

  .section-head{
    max-width:760px;
    margin-bottom:48px;
  }

  .section-head.center{
    margin-inline:auto;
    text-align:center;
  }

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:6px 16px;
    border-radius:999px;
    background:rgba(107,143,0,0.12);
    color:var(--primary-deep);
    font-size:13px;
    font-weight:600;
    letter-spacing:0.05em;
    margin-bottom:18px;
  }

  .section-title{
    font-size:clamp(1.8rem, 3.4vw, 2.5rem);
    font-weight:800;
    line-height:1.25;
    letter-spacing:-0.01em;
    color:var(--ink);
  }

  .section-sub{
    margin-top:16px;
    color:var(--text-sub);
    font-size:16px;
    max-width:680px;
  }

  .section-head.center .section-sub{
    margin-inline:auto;
  }

  .btn-primary,.btn-ghost-light,.btn-outline-dark{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 28px;
    border-radius:999px;
    font-size:16px;
    font-weight:600;
    line-height:1;
    transition:background var(--transition),border-color var(--transition),color var(--transition),transform var(--transition),box-shadow var(--transition);
  }

  .btn-primary{
    background:var(--primary);
    color:var(--ink);
    border:1px solid transparent;
  }

  .btn-primary:hover{
    background:var(--primary-hover);
    transform:translateY(-1px);
    box-shadow:0 8px 20px rgba(198,242,78,0.22);
  }

  .btn-primary:active{
    transform:translateY(0.5px);
  }

  .btn-ghost-light{
    background:rgba(255,255,255,0.04);
    color:#fff;
    border:1px solid rgba(255,255,255,0.5);
  }

  .btn-ghost-light:hover{
    background:rgba(255,255,255,0.12);
    border-color:#fff;
    transform:translateY(-1px);
  }

  .btn-outline-dark{
    background:transparent;
    color:var(--text-main);
    border:1px solid rgba(22,26,20,0.35);
  }

  .btn-outline-dark:hover{
    background:var(--ink);
    color:#fff;
    border-color:var(--ink);
    transform:translateY(-1px);
  }

  /* ===== Header ===== */
  .site-header{
    position:fixed;
    top:16px;
    left:0;
    right:0;
    z-index:70;
    pointer-events:none;
  }

  .nav-inner{
    pointer-events:auto;
    position:relative;
    z-index:10;
    max-width:1200px;
    margin-inline:auto;
    display:flex;
    align-items:center;
    gap:24px;
    padding:8px 8px 8px 24px;
    border-radius:999px;
    background:rgba(12,14,12,0.34);
    border:1px solid rgba(255,255,255,0.1);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    transition:background var(--transition),border-color var(--transition),box-shadow var(--transition);
  }

  .site-header.scrolled .nav-inner{
    background:rgba(12,14,12,0.78);
    border-color:rgba(255,255,255,0.1);
    box-shadow:0 18px 40px rgba(0,0,0,0.28);
  }

  .logo{
    display:inline-flex;
    align-items:center;
    gap:11px;
    color:#fff;
    font-weight:800;
    font-size:18px;
    letter-spacing:-0.01em;
    white-space:nowrap;
    line-height:1.2;
  }

  .logo-dot{
    width:10px;
    height:10px;
    border-radius:50%;
    background:var(--primary);
    box-shadow:0 0 0 5px rgba(198,242,78,0.12);
    flex:0 0 auto;
  }

  .nav-links{
    flex:1;
    display:flex;
    align-items:center;
    justify-content:flex-end;
    gap:8px;
  }

  .nav-links a{
    display:inline-flex;
    align-items:center;
    height:38px;
    padding:0 15px;
    border-radius:999px;
    color:rgba(255,255,255,0.7);
    font-size:15px;
    font-weight:500;
    transition:color var(--transition),background var(--transition);
  }

  .nav-links a:hover{
    color:#fff;
    background:rgba(255,255,255,0.1);
  }

  .nav-links a.active{
    color:var(--primary);
    background:rgba(198,242,78,0.12);
  }

  .nav-cta{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    height:44px;
    padding:0 24px;
    border-radius:999px;
    background:var(--primary);
    color:var(--ink);
    font-size:15px;
    font-weight:700;
    white-space:nowrap;
    border:1px solid transparent;
    transition:background var(--transition),transform var(--transition),box-shadow var(--transition);
  }

  .nav-cta:hover{
    background:var(--primary-hover);
    transform:translateY(-1px);
    box-shadow:0 8px 18px rgba(198,242,78,0.2);
  }

  .burger-btn{
    display:none;
    width:44px;
    height:44px;
    border-radius:50%;
    background:rgba(255,255,255,0.08);
    border:1px solid rgba(255,255,255,0.18);
    align-items:center;
    justify-content:center;
    pointer-events:auto;
  }

  .burger-btn span,
  .burger-btn span::before,
  .burger-btn span::after{
    content:"";
    display:block;
    width:18px;
    height:2px;
    border-radius:2px;
    background:#fff;
    transition:transform var(--transition),background var(--transition);
  }

  .burger-btn span{
    position:relative;
  }

  .burger-btn span::before{
    position:absolute;
    top:-6px;
    left:0;
  }

  .burger-btn span::after{
    position:absolute;
    top:6px;
    left:0;
  }

  .site-header.nav-open .burger-btn span{
    background:transparent;
  }

  .site-header.nav-open .burger-btn span::before{
    transform:translateY(6px) rotate(45deg);
  }

  .site-header.nav-open .burger-btn span::after{
    transform:translateY(-6px) rotate(-45deg);
  }

  /* ===== Page Hero ===== */
  .page-hero{
    position:relative;
    min-height:460px;
    padding:176px 0 80px;
    display:flex;
    align-items:center;
    background:var(--ink);
    background-image:
      linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px),
      linear-gradient(115deg, rgba(12,14,12,0.96) 0%, rgba(12,14,12,0.8) 52%, rgba(61,90,69,0.72) 100%),
      url('/assets/images/backpic/back-1.webp');
    background-size:60px 60px,60px 60px,cover,cover;
    background-position:center center;
    color:#fff;
    overflow:hidden;
  }

  .page-hero .hero-inner{
    position:relative;
    z-index:2;
    width:min(880px, calc(100% - 48px));
    margin-inline:auto;
    text-align:center;
  }

  .crumb{
    display:inline-flex;
    align-items:center;
    gap:10px;
    background:rgba(255,255,255,0.08);
    border:1px solid rgba(255,255,255,0.14);
    padding:8px 18px;
    border-radius:999px;
    font-size:13px;
    color:rgba(255,255,255,0.75);
    margin-bottom:28px;
    backdrop-filter:blur(8px);
  }

  .crumb a{
    transition:color var(--transition);
  }

  .crumb a:hover{
    color:var(--primary);
  }

  .page-hero h1{
    font-size:clamp(2.15rem, 5vw, 3.55rem);
    font-weight:800;
    line-height:1.16;
    letter-spacing:-0.02em;
    margin-bottom:22px;
  }

  .h1-sep{
    color:var(--primary);
    margin:0 6px;
    font-weight:700;
  }

  .page-lead{
    max-width:680px;
    margin:0 auto 32px;
    font-size:17px;
    line-height:1.8;
    color:rgba(255,255,255,0.82);
  }

  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:14px;
  }

  /* ===== Security Stats ===== */
  .security-stats{
    background:var(--paper);
  }

  .stat-grid{
    display:grid;
    grid-template-columns:repeat(4, minmax(0, 1fr));
    gap:24px;
  }

  .stat-card{
    background:var(--white);
    border:1px solid var(--border-light);
    border-radius:var(--radius-lg);
    padding:30px 26px;
    transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
  }

  .stat-card:hover{
    transform:translateY(-2px);
    border-color:rgba(107,143,0,0.3);
    box-shadow:var(--shadow-card);
  }

  .stat-num{
    font-family:"Inter","DIN Alternate","PingFang SC",sans-serif;
    font-feature-settings:"tnum";
    font-size:clamp(2.5rem, 4vw, 3.25rem);
    font-weight:800;
    line-height:1;
    letter-spacing:-0.02em;
    color:var(--ink);
    margin-bottom:18px;
  }

  .stat-num em{
    display:inline-block;
    font-style:normal;
    font-size:18px;
    font-weight:700;
    color:var(--secondary);
    margin-left:6px;
    vertical-align:middle;
  }

  .stat-card h3{
    font-size:18px;
    font-weight:700;
    color:var(--text-main);
    margin-bottom:8px;
  }

  .stat-card p{
    font-size:14px;
    color:var(--text-sub);
    line-height:1.7;
  }

  /* ===== Story ===== */
  .story-section{
    background:#fff;
  }

  .story-item{
    display:grid;
    grid-template-columns:minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap:60px;
    align-items:center;
  }

  .story-item + .story-item{
    margin-top:88px;
  }

  .story-item.reverse .story-media{
    order:2;
  }

  .story-item.reverse .story-text{
    order:1;
  }

  .story-media{
    position:relative;
    border-radius:var(--radius-xl);
    overflow:hidden;
    border:1px solid rgba(22,26,20,0.08);
    box-shadow:0 22px 50px rgba(12,14,12,0.12);
  }

  .story-media::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(130deg, rgba(12,14,12,0.16) 0%, rgba(12,14,12,0) 60%);
    pointer-events:none;
  }

  .story-media img{
    width:100%;
    aspect-ratio:16/11;
    object-fit:cover;
  }

  .story-text h3{
    font-size:clamp(1.6rem, 2.8vw, 2.15rem);
    font-weight:800;
    line-height:1.3;
    letter-spacing:-0.01em;
    color:var(--ink);
    margin-bottom:20px;
  }

  .story-text p{
    color:var(--text-sub);
    font-size:16px;
    line-height:1.95;
    margin-bottom:18px;
  }

  .check-list{
    margin-top:20px;
    display:grid;
    gap:12px;
  }

  .check-list li{
    display:flex;
    align-items:flex-start;
    gap:10px;
    font-size:15px;
    color:var(--text-main);
  }

  .check-list i{
    color:var(--primary-deep);
    margin-top:5px;
    font-size:15px;
  }

  .tagline-chip{
    display:inline-flex;
    align-items:center;
    padding:6px 16px;
    border-radius:999px;
    background:rgba(198,242,78,0.16);
    color:var(--primary-deep);
    font-size:13px;
    font-weight:700;
    letter-spacing:0.02em;
    margin-bottom:18px;
  }

  /* ===== Journey ===== */
  .journey-section{
    background:var(--ink);
    color:#fff;
    background-image:radial-gradient(circle at 12% 18%, rgba(198,242,78,0.08) 0%, transparent 30%);
  }

  .journey-section .section-title,
  .journey-section .section-sub{
    color:#fff;
  }

  .journey-section .section-sub{
    color:rgba(255,255,255,0.72);
  }

  .flow-grid{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:20px;
    position:relative;
  }

  .flow-item{
    position:relative;
    background:var(--ink-soft);
    border:1px solid rgba(255,255,255,0.1);
    border-radius:var(--radius-lg);
    padding:28px 24px;
    transition:border-color var(--transition),transform var(--transition);
  }

  .flow-item:hover{
    border-color:rgba(198,242,78,0.38);
    transform:translateY(-2px);
  }

  .flow-item:not(:last-child)::after{
    content:"\2192";
    position:absolute;
    right:-19px;
    top:50%;
    transform:translateY(-50%);
    color:rgba(198,242,78,0.7);
    font-size:18px;
    z-index:2;
    font-weight:600;
  }

  .flow-num{
    width:46px;
    height:46px;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:50%;
    border:1px solid rgba(198,242,78,0.5);
    background:rgba(198,242,78,0.08);
    color:var(--primary);
    font-size:16px;
    font-weight:800;
    margin-bottom:22px;
    font-feature-settings:"tnum";
  }

  .flow-item h3{
    font-size:18px;
    font-weight:700;
    color:#fff;
    margin-bottom:10px;
  }

  .flow-item p{
    font-size:14px;
    line-height:1.75;
    color:rgba(255,255,255,0.65);
  }

  /* ===== Compliance ===== */
  .compliance-section{
    background:var(--paper);
  }

  .compliance-grid{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:24px;
  }

  .compliance-card{
    background:#fff;
    border:1px solid var(--border-light);
    border-radius:var(--radius-lg);
    padding:28px 24px;
    transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
  }

  .compliance-card:hover{
    transform:translateY(-2px);
    border-color:rgba(107,143,0,0.28);
    box-shadow:var(--shadow-card);
  }

  .compliance-icon{
    width:46px;
    height:46px;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:14px;
    background:rgba(198,242,78,0.2);
    color:var(--primary-deep);
    font-size:18px;
    margin-bottom:18px;
  }

  .compliance-card h3{
    font-size:17px;
    font-weight:700;
    color:var(--ink);
    margin-bottom:8px;
  }

  .compliance-card p{
    font-size:14px;
    color:var(--text-sub);
    line-height:1.7;
  }

  /* ===== FAQ ===== */
  .faq-section{
    background:#fff;
  }

  .faq-layout{
    display:grid;
    grid-template-columns:0.85fr 1.15fr;
    gap:64px;
  }

  .faq-left{
    position:sticky;
    top:140px;
    align-self:start;
  }

  .faq-contact-card{
    margin-top:28px;
    background:var(--paper);
    border:1px solid var(--border-light);
    border-radius:var(--radius-lg);
    padding:24px;
  }

  .faq-contact-card span{
    display:block;
    font-size:14px;
    color:var(--text-sub);
    margin-bottom:8px;
  }

  .faq-contact-card a{
    color:var(--ink);
    font-weight:600;
    word-break:break-all;
    transition:color var(--transition);
  }

  .faq-contact-card a:hover{
    color:var(--primary-deep);
  }

  .faq-list{
    border-top:1px solid var(--border-light);
    border-bottom:1px solid var(--border-light);
  }

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

  .faq-question{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    padding:22px 4px;
    background:transparent;
    border:0;
    text-align:left;
    font-size:17px;
    font-weight:600;
    color:var(--ink);
    line-height:1.5;
    transition:color var(--transition);
  }

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

  .faq-icon{
    flex:0 0 30px;
    width:30px;
    height:30px;
    border-radius:50%;
    background:rgba(198,242,78,0.2);
    color:var(--primary-deep);
    font-size:22px;
    font-weight:500;
    display:flex;
    align-items:center;
    justify-content:center;
    transition:transform var(--transition),background var(--transition);
  }

  .faq-icon i{
    font-style:normal;
    line-height:1;
    font-size:20px;
  }

  .faq-item.open .faq-icon{
    transform:rotate(45deg);
    background:var(--primary);
  }

  .faq-answer{
    max-height:0;
    opacity:0;
    overflow:hidden;
    transition:max-height 280ms var(--transition),opacity 200ms ease,padding 200ms ease;
  }

  .faq-answer-inner{
    padding:0 34px 22px 4px;
    font-size:15px;
    line-height:1.9;
    color:var(--text-sub);
  }

  .faq-item.open .faq-answer{
    opacity:1;
  }

  /* ===== CTA ===== */
  .cta-section{
    background:var(--paper);
    padding-top:0;
  }

  .cta-box{
    position:relative;
    padding:72px 56px;
    border-radius:32px;
    background:var(--ink);
    color:#fff;
    overflow:hidden;
    text-align:center;
    background-image:
      linear-gradient(115deg, rgba(12,14,12,0.92) 0%, rgba(12,14,12,0.78) 60%, rgba(61,90,69,0.65) 100%),
      url('/assets/images/backpic/back-3.webp');
    background-size:cover;
    background-position:center;
    border:1px solid rgba(255,255,255,0.08);
  }

  .cta-box::after{
    content:"";
    position:absolute;
    width:420px;
    height:420px;
    border-radius:50%;
    background:radial-gradient(circle, rgba(198,242,78,0.12) 0%, transparent 70%);
    right:-140px;
    top:-140px;
    pointer-events:none;
  }

  .cta-box h2{
    font-size:clamp(1.9rem,4vw,2.8rem);
    font-weight:800;
    letter-spacing:-0.02em;
    line-height:1.3;
    margin-bottom:16px;
    position:relative;
    z-index:1;
  }

  .cta-box p{
    max-width:640px;
    margin:0 auto 32px;
    color:rgba(255,255,255,0.75);
    font-size:16px;
    position:relative;
    z-index:1;
  }

  .cta-buttons{
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:14px;
    position:relative;
    z-index:1;
  }

  /* ===== Footer ===== */
  .site-footer{
    background:var(--ink);
    color:rgba(255,255,255,0.65);
    border-top:1px solid rgba(255,255,255,0.08);
    padding:64px 0 0;
  }

  .site-footer .logo{
    font-size:20px;
    color:#fff;
  }

  .site-footer .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 0.75fr 0.9fr 1fr;
    gap:44px;
    padding-bottom:52px;
  }

  .footer-brand p{
    margin-top:18px;
    font-size:14px;
    line-height:1.9;
    color:rgba(255,255,255,0.6);
  }

  .footer-col h4{
    color:#fff;
    font-size:15px;
    font-weight:600;
    margin-bottom:16px;
  }

  .footer-col ul li{
    font-size:14px;
    line-height:2.3;
  }

  .footer-col a{
    transition:color var(--transition);
  }

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

  .footer-bottom{
    border-top:1px solid rgba(255,255,255,0.1);
    padding:22px 0;
    display:flex;
    justify-content:space-between;
    gap:18px;
    flex-wrap:wrap;
    font-size:13px;
    color:rgba(255,255,255,0.45);
  }

  /* ===== Floating CTA ===== */
  .floating-cta{
    position:fixed;
    right:24px;
    bottom:24px;
    height:54px;
    padding:0 24px;
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:var(--primary);
    color:var(--ink);
    font-size:15px;
    font-weight:700;
    border-radius:999px;
    box-shadow:0 12px 30px rgba(0,0,0,0.25);
    border:1px solid rgba(255,255,255,0.25);
    transition:transform var(--transition),background var(--transition),box-shadow var(--transition),opacity 300ms ease,visibility 300ms ease;
    opacity:0;
    visibility:hidden;
    transform:translateY(16px);
    z-index:48;
  }

  .floating-cta.show{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }

  .floating-cta:hover{
    background:var(--primary-hover);
    transform:translateY(-2px);
    box-shadow:0 16px 36px rgba(0,0,0,0.28);
  }

  body.menu-open .floating-cta{
    opacity:0 !important;
    visibility:hidden !important;
    transform:translateY(16px);
  }

  @media (max-width:1024px){
    .stat-grid{
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }

    .compliance-grid{
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }

    .flow-grid{
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:16px;
    }

    .flow-item:nth-child(2)::after{
      display:none;
    }

    .story-item,
    .story-item.reverse{
      grid-template-columns:1fr;
      gap:32px;
    }

    .story-item.reverse .story-media,
    .story-item.reverse .story-text{
      order:0;
    }

    .story-item + .story-item{
      margin-top:60px;
    }

    .faq-layout{
      grid-template-columns:1fr;
      gap:44px;
    }

    .faq-left{
      position:static;
    }

    .footer-grid{
      grid-template-columns:1fr 1fr;
      gap:36px;
    }
  }

  @media (max-width:920px){
    .nav-links{
      position:fixed;
      inset:0;
      z-index:0;
      flex-direction:column;
      justify-content:center;
      gap:10px;
      padding:104px 28px 80px;
      background:rgba(10,12,10,0.97);
      backdrop-filter:blur(18px);
      -webkit-backdrop-filter:blur(18px);
      border-radius:0;
      opacity:0;
      visibility:hidden;
      transform:translateY(-14px);
      transition:opacity 260ms ease,transform 260ms ease,visibility 260ms ease;
    }

    .site-header.nav-open .nav-links{
      opacity:1;
      visibility:visible;
      transform:translateY(0);
    }

    .nav-links a{
      height:48px;
      padding:0 24px;
      font-size:17px;
      color:rgba(255,255,255,0.82);
      width:220px;
      justify-content:center;
    }

    .nav-links a.active{
      color:var(--primary);
      background:rgba(198,242,78,0.14);
    }

    .nav-cta{
      display:none;
    }

    .burger-btn{
      display:inline-flex;
      margin-left:auto;
    }

    .nav-inner{
      max-width:calc(100% - 32px);
      padding-left:18px;
      background:rgba(12,14,12,0.5);
    }
  }

  @media (max-width:640px){
    .section{
      padding:64px 0;
    }

    .container{
      width:min(100% - 32px, 1200px);
    }

    .page-hero h1{
      font-size:2rem;
    }

    .stat-grid,
    .compliance-grid{
      grid-template-columns:1fr;
    }

    .flow-grid{
      grid-template-columns:1fr;
      gap:12px;
    }

    .flow-item:not(:last-child)::after{
      content:"\2193";
      right:auto;
      bottom:-20px;
      top:auto;
      left:26px;
      transform:none;
    }

    .story-media img{
      aspect-ratio:4/3;
    }

    .faq-question{
      font-size:16px;
      padding:18px 2px;
    }

    .cta-box{
      padding:52px 22px;
      border-radius:24px;
    }

    .footer-grid{
      grid-template-columns:1fr;
      gap:32px;
      padding-bottom:36px;
    }

    .footer-bottom{
      flex-direction:column;
      text-align:center;
      justify-content:center;
    }

    .floating-cta{
      right:16px;
      bottom:16px;
      padding:0 20px;
      height:50px;
    }

    .hero-actions .btn-primary,
    .hero-actions .btn-ghost-light,
    .cta-buttons .btn-primary,
    .cta-buttons .btn-outline-dark{
      width:100%;
      margin-bottom:4px;
    }
  }

  @media (prefers-reduced-motion:reduce){
    *,
    *::before,
    *::after{
      animation-duration:0.01ms !important;
      animation-iteration-count:1 !important;
      transition-duration:0.01ms !important;
      scroll-behavior:auto !important;
    }
  }

/* roulang page: category4 */
:root{
    --lime:#C6F24E;
    --limedark:#6B8F00;
    --green:#3D5A45;
    --ink:#0C0E0C;
    --ink2:#141713;
    --paper:#F5F6F2;
    --card:#FFFFFF;
    --text:#161A14;
    --subtext:#5B6270;
    --muted:#9CA3AF;
    --line:#E4E7DE;
    --line-dark:#2A2F28;
    --radius-card:18px;
    --shadow-hover:0 12px 32px rgba(12,14,12,0.08);
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,sans-serif;
    background:var(--paper);
    color:var(--text);
    line-height:1.7;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  .container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
  .tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

  .site-header{
    position:fixed;top:16px;left:16px;right:16px;z-index:100;
    display:flex;justify-content:center;pointer-events:none;
  }
  .nav-inner{
    max-width:1200px;width:100%;
    display:flex;align-items:center;gap:24px;
    background:rgba(12,14,12,0.36);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border:1px solid rgba(255,255,255,0.1);
    border-radius:999px;
    padding:10px 20px 10px 24px;
    pointer-events:auto;
    transition:all .25s ease;
  }
  .site-header.scrolled .nav-inner{
    background:rgba(12,14,12,0.78);
    backdrop-filter:blur(20px);
    box-shadow:0 10px 30px rgba(0,0,0,0.18);
  }
  .logo{
    display:flex;align-items:center;gap:10px;
    color:#fff;font-weight:800;font-size:19px;letter-spacing:-0.02em;
    white-space:nowrap;
  }
  .logo-dot{
    width:12px;height:12px;border-radius:3px;
    background:var(--lime);
    box-shadow:0 0 0 4px rgba(198,242,78,0.12);
  }
  .nav-links{
    display:flex;align-items:center;gap:6px;
    margin:0 auto;
  }
  .nav-links a{
    font-size:14.5px;font-weight:500;color:rgba(255,255,255,0.78);
    padding:6px 16px;border-radius:999px;
    transition:background .25s,color .25s;
    white-space:nowrap;
  }
  .nav-links a:hover{color:#fff;background:rgba(255,255,255,0.1)}
  .nav-links a.active{
    color:var(--ink);background:var(--lime);font-weight:600;
  }
  .nav-cta{
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--lime);color:#0C0E0C;
    font-size:15px;font-weight:700;
    height:40px;padding:0 22px;border-radius:999px;
    white-space:nowrap;
    transition:background .2s,transform .2s;
    border:none;cursor:pointer;
  }
  .nav-cta:hover{background:#D6F86A;transform:translateY(-1px)}
  .burger-btn{
    display:none;background:transparent;border:none;
    width:38px;height:38px;border-radius:50%;
    position:relative;
    cursor:pointer;
    z-index:60;
  }
  .burger-btn span,.burger-btn span::before,.burger-btn span::after{
    content:"";display:block;width:20px;height:2px;background:#fff;
    position:absolute;left:9px;transition:transform .3s,opacity .3s;
  }
  .burger-btn span{top:18px}
  .burger-btn span::before{top:-6px}
  .burger-btn span::after{top:6px}
  .burger-btn.open span{background:transparent}
  .burger-btn.open span::before{transform:rotate(45deg);top:0}
  .burger-btn.open span::after{transform:rotate(-45deg);top:0}
  .mobile-menu{
    position:fixed;inset:0;background:rgba(12,14,12,0.96);
    backdrop-filter:blur(14px);
    z-index:55;
    display:flex;align-items:center;justify-content:center;
    opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;
  }
  .mobile-menu.open{opacity:1;visibility:visible}
  .mobile-menu nav{display:flex;flex-direction:column;align-items:center;gap:12px}
  .mobile-menu nav a{
    color:#fff;font-size:19px;font-weight:600;
    padding:12px 32px;border-radius:999px;
    transition:background .2s,color .2s;
  }
  .mobile-menu nav a:hover{background:rgba(255,255,255,0.08)}
  .mobile-menu nav a.active{background:var(--lime);color:var(--ink)}
  .mobile-menu .menu-close-btn{
    position:absolute;top:22px;right:24px;
    background:transparent;border:none;width:44px;height:44px;cursor:pointer;
  }
  .mobile-menu .menu-close-btn::before,.mobile-menu .menu-close-btn::after{
    content:"";position:absolute;left:10px;top:21px;width:24px;height:2px;
    background:#fff;transition:transform .3s;
  }
  .mobile-menu .menu-close-btn::before{transform:rotate(45deg)}
  .mobile-menu .menu-close-btn::after{transform:rotate(-45deg)}

  .page-hero{
    background:var(--ink);
    position:relative;
    padding:190px 0 88px;
    color:#fff;
    overflow:hidden;
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background:
      linear-gradient(rgba(255,255,255,0.035) 1px,transparent 1px),
      linear-gradient(90deg,rgba(255,255,255,0.035) 1px,transparent 1px);
    background-size:60px 60px;
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;
    background:
      linear-gradient(90deg,rgba(0,0,0,0.55) 0%,rgba(12,14,12,0.35) 50%,rgba(12,14,12,0.72) 100%),
      url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    opacity:0.45;
  }
  .page-hero .container{position:relative;z-index:2}
  .breadcrumb{font-size:13px;color:rgba(255,255,255,0.65);margin-bottom:22px}
  .breadcrumb a{color:rgba(255,255,255,0.65);transition:color .2s}
  .breadcrumb a:hover{color:var(--lime)}
  .breadcrumb .sep{margin:0 10px;color:rgba(255,255,255,0.35)}
  .breadcrumb .current{color:#fff}
  .page-hero h1{
    font-size:clamp(34px,5vw,60px);
    font-weight:800;
    letter-spacing:-0.03em;
    line-height:1.16;
    max-width:900px;
  }
  .page-hero h1 .hl{color:var(--lime)}
  .page-hero .lead{
    font-size:17px;line-height:1.9;
    color:rgba(255,255,255,0.8);
    margin-top:18px;
    max-width:640px;
  }

  .section{padding:96px 0}
  .section-head{margin-bottom:48px}
  .section-head .tagline{
    display:inline-flex;align-items:center;
    font-size:13px;font-weight:600;color:var(--limedark);
    background:rgba(198,242,78,0.14);
    padding:4px 12px;border-radius:999px;
    margin-bottom:14px;
  }
  .section-head h2{
    font-size:clamp(28px,3.4vw,40px);
    font-weight:800;
    letter-spacing:-0.02em;
    line-height:1.25;
    color:var(--text);
  }
  .section-head p{margin-top:12px;color:var(--subtext);max-width:760px}
  .section.bg-white{background:#fff}
  .section.bg-ink{background:var(--ink)}
  .section.bg-ink .section-head h2{color:#fff}
  .section.bg-ink .section-head p{color:#A0A8A0}

  .feature-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:20px;
    padding:34px 28px;
    height:100%;
    transition:box-shadow .25s,border-color .25s,transform .25s;
  }
  .feature-card:hover{
    box-shadow:var(--shadow-hover);
    border-color:rgba(198,242,78,0.45);
    transform:translateY(-3px);
  }
  .badge{
    display:inline-flex;align-items:center;
    font-size:12px;font-weight:600;
    padding:4px 12px;border-radius:6px;
    background:rgba(198,242,78,0.12);
    color:var(--limedark);
    letter-spacing:0.02em;
  }
  .date-chip{
    display:inline-flex;align-items:center;
    font-size:13px;
    color:var(--muted);
  }
  .date-chip .dot{width:3px;height:3px;border-radius:50%;background:#bbb;margin:0 8px}
  .news-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:18px;
    overflow:hidden;
    display:flex;
    flex-direction:column;
    transition:box-shadow .25s,border-color .25s,transform .25s;
  }
  .news-card:hover{
    border-color:rgba(198,242,78,0.5);
    box-shadow:var(--shadow-hover);
    transform:translateY(-3px);
  }
  .news-card .thumb{aspect-ratio:16/9;overflow:hidden;background:#E8EAE2;position:relative}
  .news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
  .news-card:hover .thumb img{transform:scale(1.04)}
  .news-card .nc-body{padding:22px;display:flex;flex-direction:column;flex:1}
  .news-card h3{
    font-size:18px;font-weight:700;
    line-height:1.5;
    margin:14px 0 10px;
    color:var(--text);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    transition:color .2s;
  }
  .news-card a:hover h3{color:rgba(107,143,0,0.9)}
  .news-card .summary{
    font-size:14px;color:var(--subtext);
    line-height:1.7;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    margin-bottom:16px;
  }
  .news-card .meta{
    display:flex;align-items:center;justify-content:space-between;
    font-size:12px;color:var(--muted);
    margin-top:auto;
    padding-top:12px;
    border-top:1px solid #f0f0e8;
  }
  .read-more{
    color:var(--limedark);
    font-weight:600;
    display:inline-flex;align-items:center;gap:6px;
    font-size:13px;
    transition:gap .2s;
  }
  .read-more:hover{gap:10px}

  .media-cover{
    border-radius:18px;
    overflow:hidden;
    position:relative;
    border:1px solid rgba(0,0,0,0.05);
    aspect-ratio:16/10;
  }
  .media-cover img{width:100%;height:100%;object-fit:cover}

  .announcement-panel{
    background:var(--ink2);
    border-radius:24px;
    color:#fff;
    padding:42px;
    overflow:hidden;
    position:relative;
  }
  .announcement-panel::before{
    content:"";position:absolute;
    width:400px;height:400px;
    background:radial-gradient(circle,rgba(198,242,78,0.12),transparent 65%);
    top:-140px;right:-100px;
  }
  .announcement-panel h3{
    font-size:26px;font-weight:700;line-height:1.4;
    margin-top:16px;margin-bottom:12px;
  }
  .announcement-panel p{color:#A0A8A0;font-size:15px;line-height:1.8}

  .timeline-item{
    position:relative;
    padding-left:44px;
    padding-bottom:52px;
  }
  .timeline-item::before{
    content:"";position:absolute;left:4px;top:8px;
    width:14px;height:14px;border-radius:50%;
    background:var(--lime);
    box-shadow:0 0 0 4px rgba(198,242,78,0.1);
    z-index:1;
  }
  .timeline-item::after{
    content:"";position:absolute;left:10px;top:32px;bottom:-5px;
    width:2px;
    background:rgba(255,255,255,0.1);
  }
  .timeline-item:last-child::after{display:none}
  .timeline-time{
    font-size:12px;letter-spacing:0.08em;
    color:rgba(255,255,255,0.5);
    text-transform:uppercase;
    font-weight:600;
  }
  .timeline-item h3{
    font-size:19px;font-weight:700;
    margin-top:10px;color:#fff;
    line-height:1.5;
  }
  .timeline-item p{
    color:#A0A8A0;font-size:14px;line-height:1.75;
    margin-top:6px;
  }

  .faq-block{
    background:#fff;
    border:1px solid var(--line);
    border-radius:18px;
    padding:0 4px;
    transition:box-shadow .25s;
  }
  .faq-block:hover{box-shadow:var(--shadow-hover)}
  .faq-item{
    padding:26px 24px;
    border-bottom:1px solid var(--line);
  }
  .faq-item:last-child{border-bottom:none}
  .faq-q{
    display:flex;justify-content:space-between;align-items:center;
    gap:16px;
    font-size:16px;font-weight:600;color:var(--text);
    cursor:pointer;
    user-select:none;
  }
  .faq-icon{
    width:30px;height:30px;border-radius:50%;
    background:rgba(198,242,78,0.15);
    position:relative;
    flex-shrink:0;
    transition:background .2s,transform .2s;
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:var(--limedark);
    transition:transform .25s;
  }
  .faq-icon::before{width:2px;height:12px;left:14px;top:9px}
  .faq-icon::after{width:12px;height:2px;left:9px;top:14px}
  .faq-q.open .faq-icon{background:var(--lime);transform:rotate(45deg)}
  .faq-a{
    display:none;
    font-size:14.5px;line-height:1.85;color:var(--subtext);
    padding-top:14px;
  }

  .cta-strip{
    background:var(--ink);
    position:relative;
    overflow:hidden;
    border-radius:24px;
    padding:52px 36px;
    text-align:center;
    color:#fff;
  }
  .cta-strip::before{
    content:"";position:absolute;
    width:500px;height:240px;
    background:radial-gradient(ellipse,rgba(198,242,78,0.16),transparent 70%);
    top:50%;left:50%;transform:translate(-50%,-50%);
    pointer-events:none;
  }
  .cta-strip h2{
    font-size:clamp(24px,3vw,36px);
    font-weight:800;
    letter-spacing:-0.02em;
    color:#fff;
    position:relative;z-index:1;
  }
  .cta-strip p{
    margin-top:14px;color:#A0A8A0;font-size:15.5px;
    max-width:560px;margin-left:auto;margin-right:auto;
    position:relative;z-index:1;
  }
  .cta-strip .cta-btn-wrap{
    margin-top:28px;
    display:flex;justify-content:center;gap:16px;flex-wrap:wrap;
    position:relative;z-index:1;
  }
  .btn-lime{
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--lime);
    color:#0C0E0C;
    font-weight:700;
    height:48px;padding:0 30px;
    border-radius:999px;
    border:none;
    font-size:15px;
    cursor:pointer;
    transition:background .2s,transform .2s,box-shadow .2s;
  }
  .btn-lime:hover{
    background:#D6F86A;
    transform:translateY(-1px);
    box-shadow:0 6px 16px rgba(198,242,78,0.22);
  }
  .btn-outline-light{
    display:inline-flex;align-items:center;justify-content:center;
    background:transparent;
    color:#fff;
    font-weight:600;
    height:48px;padding:0 28px;
    border-radius:999px;
    border:1px solid rgba(255,255,255,0.4);
    font-size:15px;
    transition:background .2s,border-color .2s;
  }
  .btn-outline-light:hover{background:rgba(255,255,255,0.1);border-color:#fff}

  .float-cta{
    position:fixed;right:24px;bottom:24px;z-index:40;
    background:var(--lime);
    color:#0C0E0C;
    font-size:15px;font-weight:700;
    height:52px;padding:0 24px;
    border-radius:999px;
    display:flex;align-items:center;justify-content:center;
    box-shadow:0 8px 24px rgba(0,0,0,0.25);
    opacity:0;visibility:hidden;
    transition:opacity .3s,visibility .3s,background .2s,transform .2s;
    cursor:pointer;
    border:none;
  }
  .float-cta.show{opacity:1;visibility:visible}
  .float-cta:hover{background:#D6F86A;transform:translateY(-2px)}
  @media(max-width:768px){
    .float-cta{max-width:160px;height:48px;padding:0 18px;right:16px;bottom:16px;font-size:14px}
  }

  .footer{
    background:var(--ink);
    border-top:1px solid rgba(255,255,255,0.08);
    padding:64px 0 24px;
    color:#A0A8A0;
    margin-top:0;
  }
  .footer-grid{
    display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;
    gap:48px;
    margin-bottom:48px;
  }
  .footer .logo{color:#fff;margin-bottom:18px}
  .footer-brand p{font-size:14px;line-height:1.9;max-width:320px;color:#A0A8A0}
  .footer-col h4{color:#F3F5F0;font-size:15px;font-weight:600;margin-bottom:16px}
  .footer-col ul{list-style:none}
  .footer-col li{line-height:34px}
  .footer-col a{font-size:14px;color:#A0A8A0;transition:color .2s}
  .footer-col a:hover{color:var(--lime)}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,0.08);
    padding-top:26px;
    display:flex;justify-content:space-between;align-items:center;gap:16px;
    font-size:12px;color:rgba(255,255,255,0.45);
    flex-wrap:wrap;
  }

  @media(max-width:1024px){
    .nav-links{display:none}
    .burger-btn{display:block}
    .nav-cta{margin-left:auto}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  }
  @media(max-width:768px){
    .container{padding-left:16px;padding-right:16px}
    .section{padding:64px 0}
    .footer-grid{grid-template-columns:1fr 1fr}
    .nav-cta{display:none}
    .cta-strip{padding:44px 22px}
    .announcement-panel{padding:26px 22px}
  }
  @media(max-width:520px){
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;justify-content:flex-start}
  }
  @media(prefers-reduced-motion:reduce){
    *{transition:none!important}
    html{scroll-behavior:auto}
  }
  @view-transition{
    navigation:auto;
  }