/* roulang page: index */
:root {
            --primary: #1D9BBF;
            --primary-soft: rgba(29, 155, 191, 0.1);
            --accent: #E5433F;
            --accent-soft: rgba(229, 67, 63, 0.1);
            --dark: #0B1118;
            --dark-2: #101B24;
            --light: #F6F9FB;
            --white: #FFFFFF;
            --text: #182029;
            --text-secondary: #6B7684;
            --border: #E2E9F0;
            --border-dark: rgba(255, 255, 255, 0.14);
            --radius-lg: 16px;
            --radius-md: 12px;
            --shadow-sm: 0 4px 16px rgba(15, 23, 36, 0.06);
            --shadow-md: 0 12px 30px rgba(15, 23, 36, 0.08);
            --shadow-lg: 0 18px 36px rgba(15, 23, 36, 0.12);
            --font-main: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
            --container: 1200px;
            --section-pad: 96px;
            --radius-btn: 999px;
            --space-1: 4px;
            --space-2: 8px;
            --space-3: 16px;
            --space-4: 24px;
            --space-5: 32px;
            --space-6: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-main);
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text);
            background: var(--white);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            display: block;
            border: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.25s ease, opacity 0.25s ease;
        }

        a:hover {
            color: #14718C;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        button {
            font-family: var(--font-main);
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin-right: auto;
            margin-left: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .container-sm {
            max-width: 820px;
            margin-right: auto;
            margin-left: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* --- 按钮 --- */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.9375rem;
            font-weight: 600;
            line-height: 1.2;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            transition: all 0.25s ease;
            white-space: nowrap;
            border: 1px solid transparent;
            text-decoration: none;
            text-align: center;
        }

        .btn i {
            font-style: normal;
            line-height: 1;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 12px rgba(229, 67, 63, 0.3);
        }

        .btn-primary:hover {
            background: #C93A36;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(229, 67, 63, 0.35);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 6px rgba(229, 67, 63, 0.3);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text);
            border-color: #CFD9E2;
        }

        .btn-secondary:hover {
            border-color: var(--text);
            background: rgba(24, 32, 41, 0.02);
            color: var(--text);
        }

        .btn-light {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.35);
            backdrop-filter: blur(4px);
        }

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

        .btn-ghost {
            background: transparent;
            padding: 12px 12px;
            color: var(--primary);
        }

        .btn-ghost:hover {
            color: #14718C;
        }

        .btn-ghost .arrow {
            display: inline-block;
            transition: transform 0.25s ease;
            font-style: normal;
        }

        .btn-ghost:hover .arrow {
            transform: translateX(3px);
        }

        /* --- 标签/徽章 --- */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            border-radius: 6px;
            background: rgba(29, 155, 191, 0.1);
            color: #14748F;
            font-size: 0.8125rem;
            font-weight: 600;
            line-height: 1.5;
            white-space: nowrap;
        }

        .badge-accent {
            background: var(--accent-soft);
            color: var(--accent);
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.8125rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(24, 32, 41, 0.04);
            border: 1px solid transparent;
        }

        /* --- 导航 --- */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 72px;
            display: flex;
            align-items: center;
            transition: background 0.3s ease, box-shadow 0.3s ease, border 0.3s ease;
            border-bottom: 1px solid transparent;
            background: transparent;
        }

        .site-header.is-scrolled {
            background: rgba(11, 17, 24, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom-color: var(--border-dark);
        }

        .site-header .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }

        .brand-logo {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
        }

        .brand-logo svg {
            width: 100%;
            height: 100%;
            display: block;
        }

        .brand-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            line-height: 1.2;
        }

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

        .main-nav a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9375rem;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 999px;
            text-decoration: none;
            position: relative;
            transition: color 0.2s;
        }

        .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav a.active {
            color: #fff;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.08);
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: 2px;
            width: 18px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            transform: translateX(-50%);
        }

        .header-cta {
            margin-left: 12px;
        }

        .header-cta .btn {
            padding: 10px 24px;
            font-size: 0.9375rem;
        }

        .nav-toggle {
            display: none;
        }

        /* 桌面端底部Tab隐藏 */
        .bottom-tabs {
            display: none;
        }

        /* --- Hero --- */
        .hero {
            position: relative;
            min-height: 100vh;
            min-height: 100svh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--dark-2);
            background-image:
                linear-gradient(135deg, rgba(16, 27, 36, 0.9) 0%, rgba(10, 16, 23, 0.95) 100%),
                url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center 30%;
            overflow: hidden;
        }

        .hero-bg-svg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
            opacity: 0.65;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, rgba(11, 17, 24, 0.8), transparent);
            z-index: 1;
            pointer-events: none;
        }

        .hero-grid-lines {
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
            background-size: 80px 80px;
            z-index: 0;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 5;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 120px 24px 80px;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero-copy {
            animation: heroUp 0.6s ease forwards;
            opacity: 0;
        }

        @keyframes heroUp {
            from {
                opacity: 0;
                transform: translateY(14px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-kicker {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 28px;
        }

        .kicker-line {
            width: 32px;
            height: 2px;
            background: var(--accent);
        }

        .kicker-text {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.875rem;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .hero h1 {
            font-size: clamp(2.75rem, 7vw, 4.5rem);
            font-weight: 700;
            color: #fff;
            line-height: 1.18;
            letter-spacing: -0.01em;
            margin-bottom: 20px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }

        .hero h1 .primary-text {
            color: var(--primary);
        }

        .hero h1 .accent-text {
            color: var(--accent);
        }

        .hero-desc {
            color: rgba(255, 255, 255, 0.72);
            font-size: 1.1rem;
            line-height: 1.9;
            margin-bottom: 36px;
            max-width: 620px;
            text-shadow: 0 1px 8px rgba(0, 0, 0, 0.25);
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .hero-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-lg);
            padding: 18px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            position: relative;
        }

        .hero-card-wrap {
            position: relative;
        }

        .hero-card-wrap::before {
            content: '';
            position: absolute;
            top: 8%;
            left: 8%;
            right: 8%;
            bottom: 8%;
            background: linear-gradient(145deg, rgba(29, 155, 191, 0.2), rgba(229, 67, 63, 0.4));
            border-radius: 20px;
            filter: blur(34px);
            opacity: 0.6;
            z-index: 0;
            pointer-events: none;
        }

        .hero-card .card-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 14px;
        }

        .hero-card .card-dot {
            display: flex;
            gap: 6px;
            align-items: center;
        }

        .hero-card .card-dot span {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.25);
        }

        .hero-card .card-img {
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 16px;
            max-height: 220px;
        }

        .hero-card .card-img img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .card-feature-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .card-feature-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.875rem;
            line-height: 1.5;
        }

        .card-feature-item .dot {
            width: 18px;
            height: 18px;
            background: var(--primary);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.75rem;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .hero-scroll {
            position: absolute;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 5;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.48);
            font-size: 0.8125rem;
            letter-spacing: 0.05em;
            text-decoration: none;
        }

        .hero-scroll .scroll-line {
            width: 1px;
            height: 36px;
            background: linear-gradient(to bottom, rgba(255, 255, 255, 0.5), transparent);
        }

        /* --- 区块通用 --- */
        .section {
            padding: var(--section-pad) 0;
        }

        .section-alt {
            background: var(--light);
        }

        .section-dark {
            background: var(--dark);
            color: #fff;
        }

        .section-header {
            margin-bottom: 56px;
        }

        .section-eyebrow {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.8125rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .section-eyebrow .eyebrow-line {
            width: 28px;
            height: 2px;
            background: var(--primary);
            display: inline-block;
        }

        .section-title {
            font-size: clamp(1.75rem, 4vw, 2.75rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            letter-spacing: -0.01em;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-sub {
            font-size: 1.0625rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin-top: 12px;
            line-height: 1.7;
        }

        .section-dark .section-sub {
            color: rgba(255, 255, 255, 0.6);
        }

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

        .section-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        /* --- 卖点区 --- */
        .features-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .features-visual {
            position: relative;
        }

        .features-img-main {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
        }

        .features-img-main img {
            width: 100%;
            height: 450px;
            object-fit: cover;
        }

        .feature-focus-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px;
            box-shadow: var(--shadow-md);
            position: absolute;
            bottom: -32px;
            right: 24px;
            max-width: 280px;
        }

        .feature-focus-card .ff-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
        }

        .feature-badge-icon {
            display: flex;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            background: var(--primary-soft);
            border-radius: 10px;
            color: var(--primary);
        }

        .feature-focus-card .ff-title {
            font-weight: 600;
            font-size: 1rem;
        }

        .feature-focus-card .ff-desc {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .features-content {
            display: flex;
            flex-direction: column;
            gap: 22px;
        }

        .feature-item-card {
            display: flex;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
        }

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

        .feature-number {
            font-family: 'Inter', var(--font-main);
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary);
            line-height: 1;
            min-width: 42px;
            margin-top: 4px;
        }

        .feature-item-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .feature-item-body p {
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.8;
            margin: 0;
        }

        /* --- 展示区 --- */
        .showcase {
            background: var(--light);
        }

        .showcase-block {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 48px;
            align-items: center;
        }

        .showcase-info .btn {
            margin-top: 16px;
        }

        .showcase-mini-list {
            margin: 26px 0;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .showcase-mini-item {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .showcase-mini-item .ic {
            width: 20px;
            height: 20px;
            background: var(--primary-soft);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 12px;
            flex-shrink: 0;
        }

        .showcase-mini-item span {
            font-size: 0.9375rem;
            color: var(--text);
        }

        .showcase-device {
            position: relative;
            background: var(--white);
            border-radius: 20px;
            padding: 16px 16px 0;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            transform: rotate(1.2deg);
            transition: transform 0.3s ease;
        }

        .showcase-device:hover {
            transform: rotate(0deg) translateY(-4px);
        }

        .device-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 12px;
            padding: 0 6px;
        }

        .device-dots {
            display: flex;
            gap: 5px;
        }

        .device-dots i {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #d8d8dc;
            display: inline-block;
        }

        .device-url {
            font-size: 0.8rem;
            color: var(--text-secondary);
            background: var(--light);
            padding: 3px 12px;
            border-radius: 20px;
            font-family: 'Inter', monospace;
        }

        .device-screen {
            border-radius: 12px 12px 0 0;
            overflow: hidden;
            position: relative;
            background: var(--dark-2);
            min-height: 380px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .device-screen img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        .showcase-switcher {
            display: flex;
            gap: 8px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .switcher-btn {
            padding: 6px 16px;
            border-radius: 6px;
            border: 1px solid var(--border);
            background: transparent;
            font-size: 0.8125rem;
            color: var(--text-secondary);
            transition: all 0.2s;
            cursor: pointer;
        }

        .switcher-btn:hover,
        .switcher-btn.active {
            background: var(--white);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* --- 证据区 --- */
        .stats-band {
            background: var(--dark);
            padding: 60px 0;
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .stat-item {
            text-align: left;
            border-left: 1px solid rgba(255, 255, 255, 0.14);
            padding-left: 24px;
        }

        .stat-number {
            font-family: 'Inter', var(--font-main);
            font-weight: 700;
            font-size: clamp(2rem, 4vw, 2.875rem);
            line-height: 1.1;
            color: #fff;
            margin-bottom: 4px;
        }

        .stat-number .suffix {
            color: var(--primary);
            font-size: 0.7em;
        }

        .stat-label {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9375rem;
        }

        .testimonials {
            padding: calc(var(--section-pad) * 0.6) 0 0;
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-top: 40px;
        }

        .testimonial-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .testimonial-card .quote-mark {
            position: absolute;
            top: 20px;
            right: 26px;
            font-family: Georgia, serif;
            font-size: 4rem;
            color: var(--primary-soft);
            line-height: 1;
        }

        .testimonial-card p {
            font-size: 1rem;
            line-height: 1.9;
            color: var(--text);
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
        }

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

        .testimonial-author .avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #63c2db);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
            font-size: 0.875rem;
        }

        .testimonial-author .name {
            font-weight: 600;
            font-size: 0.9375rem;
        }

        .testimonial-author .role {
            color: var(--text-secondary);
            font-size: 0.8125rem;
        }

        /* --- 最新资讯 CMS区 --- */
        .news-section {
            background: var(--white);
        }

        .news-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            grid-auto-rows: auto;
            gap: 24px;
        }

        .news-card-featured {
            grid-column: 1 / 2;
            grid-row: span 2;
            background: var(--light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            text-decoration: none;
            display: flex;
            flex-direction: column;
            border: 1px solid var(--border);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .news-card-featured:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .news-img {
            overflow: hidden;
            position: relative;
            background: #edf1f4;
        }

        .news-img img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .news-card-featured:hover .news-img img {
            transform: scale(1.03);
        }

        .news-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
            font-size: 0.875rem;
            color: var(--text-secondary);
        }

        .news-meta .dot-sperate {
            width: 3px;
            height: 3px;
            background: #b0b8c2;
            border-radius: 50%;
            display: inline-block;
        }

        .news-title {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text);
            line-height: 1.4;
        }

        .news-title a {
            color: inherit;
            text-decoration: none;
        }

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

        .news-excerpt {
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.8;
            flex: 1;
        }

        .news-card-small {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            flex-direction: column;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .news-card-small:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .news-card-small .news-title {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .news-card-small .news-excerpt {
            font-size: 0.875rem;
            -webkit-line-clamp: 2;
            display: -webkit-box;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-small .news-date {
            margin-top: auto;
            padding-top: 14px;
            font-size: 0.8125rem;
            color: var(--text-secondary);
        }

        .news-card-empty {
            grid-column: 1 / -1;
            background: var(--light);
            border: 1px dashed var(--border);
            border-radius: var(--radius-md);
            padding: 40px 32px;
            text-align: center;
            color: var(--text-secondary);
            font-size: 0.9375rem;
        }

        .news-empty-icon {
            width: 48px;
            height: 48px;
            border: 1.5px solid var(--border);
            margin: 0 auto 16px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #9aa5b1;
        }

        /* --- 价格/方案区 --- */
        .pricing-section {
            background: var(--light);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            align-items: stretch;
            margin-top: 16px;
        }

        .price-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            display: flex;
            flex-direction: column;
            position: relative;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .price-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .price-card.recommended {
            border-color: var(--primary);
            box-shadow: 0 0 0 1px var(--primary), var(--shadow-md);
            padding-top: 50px;
            padding-bottom: 50px;
        }

        .recommend-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #fff;
            font-size: 0.8125rem;
            padding: 4px 16px;
            border-radius: 999px;
            font-weight: 600;
        }

        .price-name {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .price-desc {
            font-size: 0.875rem;
            color: var(--text-secondary);
            min-height: 48px;
            margin-bottom: 20px;
        }

        .price-amount {
            display: flex;
            align-items: baseline;
            gap: 4px;
            margin-bottom: 24px;
        }

        .price-amount .symbol {
            font-size: 1.25rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .price-amount .number {
            font-size: 3.25rem;
            font-weight: 700;
            font-family: 'Inter', var(--font-main);
            line-height: 1;
            color: var(--text);
        }

        .price-amount .unit {
            color: var(--text-secondary);
            font-size: 0.875rem;
        }

        .price-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin: 0 0 28px;
            flex: 1;
        }

        .price-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.9375rem;
            color: var(--text);
        }

        .price-features li .check-icon {
            color: var(--primary);
            flex-shrink: 0;
            font-style: normal;
            font-weight: 700;
        }

        /* --- FAQ --- */
        .faq-section {
            background: var(--white);
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 0.75fr 1.25fr;
            gap: 56px;
        }

        .faq-left {
            position: sticky;
            top: 100px;
            align-self: flex-start;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            border-top: 1px solid var(--border);
        }

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

        .faq-question {
            width: 100%;
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            text-align: left;
            background: transparent;
            border: none;
            font-size: 1.0625rem;
            font-weight: 500;
            color: var(--text);
            cursor: pointer;
            transition: color 0.25s;
            line-height: 1.5;
        }

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

        .faq-question .faq-icon {
            position: relative;
            width: 20px;
            height: 20px;
            flex-shrink: 0;
        }

        .faq-question .faq-icon::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 16px;
            height: 2px;
            background: var(--text-secondary);
            transform: translate(-50%, -50%);
            transition: all 0.3s ease;
        }

        .faq-question .faq-icon::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 2px;
            height: 16px;
            background: var(--text-secondary);
            transform: translate(-50%, -50%);
            transition: all 0.3s ease;
        }

        .faq-item.active .faq-icon::after {
            transform: translate(-50%, -50%) rotate(90deg);
            opacity: 0;
        }

        .faq-item.active .faq-question {
            color: var(--primary);
        }

        .faq-item.active .faq-icon::before {
            background: var(--primary);
        }

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

        .faq-answer-inner {
            padding: 0 0 20px;
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.85;
        }

        /* --- CTA --- */
        .cta-section {
            background: var(--light);
            position: relative;
            overflow: hidden;
        }

        .cta-card {
            background: linear-gradient(135deg, #101B24 0%, #0A1017 100%);
            border-radius: 20px;
            padding: 72px 60px;
            text-align: center;
            position: relative;
            overflow: hidden;
            color: #fff;
        }

        .cta-card .glow-circle {
            position: absolute;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(29, 155, 191, 0.18), transparent 70%);
            top: -60px;
            right: -60px;
        }

        .cta-card .glow-circle.bottom {
            bottom: -60px;
            left: -60px;
            right: auto;
            top: auto;
            background: radial-gradient(circle, rgba(229, 67, 63, 0.12), transparent 70%);
        }

        .cta-card h2 {
            font-size: clamp(1.75rem, 4vw, 2.5rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-card p {
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 36px;
            font-size: 1.0625rem;
        }

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

        .cta-note {
            margin-top: 20px;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.875rem;
        }

        /* --- 页脚 --- */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 72px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .brand-name {
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: 0.9375rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 20px;
        }

        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }

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

        .footer-col ul li+li {
            margin-top: 10px;
        }

        .footer-col ul a {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s, padding-left 0.2s;
            font-size: 0.9375rem;
        }

        .footer-col ul a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: 0.9375rem;
            margin-bottom: 8px;
        }

        .footer-bottom {
            padding: 28px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.875rem;
        }

        .footer-bottom .official-link {
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom .official-link:hover {
            color: #fff;
        }

        .footer-text {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.8125rem;
            line-height: 1.7;
            max-width: 720px;
        }

        /* --- 浮动CTA --- */
        .float-cta {
            position: fixed;
            right: 24px;
            bottom: 36px;
            z-index: 900;
            background: var(--accent);
            color: #fff;
            width: auto;
            padding: 14px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.9375rem;
            box-shadow: 0 10px 24px rgba(229, 67, 63, 0.4);
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

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

        .float-cta:hover {
            background: #C93A36;
            color: #fff;
            transform: translateY(-3px);
        }

        /* --- 移动标签 --- */
        body {
            padding-bottom: 0;
        }

        /* --- 响应式 --- */
        @media (max-width: 1023px) {
            :root {
                --section-pad: 72px;
            }

            .hero-content {
                grid-template-columns: 1fr;
                gap: 48px;
                padding: 120px 24px 96px;
            }

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

            .showcase-block {
                grid-template-columns: 1fr;
            }

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

            .news-card-featured {
                grid-column: span 2;
                grid-row: auto;
            }

            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                max-width: 480px;
                margin-left: auto;
                margin-right: auto;
            }

            .price-card {
                padding: 32px;
            }

            .price-card.recommended {
                padding: 36px 32px;
            }

            .faq-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .faq-left {
                position: relative;
                top: 0;
            }

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

        @media (min-width: 768px) and (max-width: 1023px) {
            .bottom-tabs {
                display: flex;
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.92);
                backdrop-filter: blur(12px);
                height: 62px;
                z-index: 1100;
                border-top: 1px solid rgba(255, 255, 255, 0.8);
                box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.05);
            }

            body {
                padding-bottom: 62px;
            }

            .float-cta {
                bottom: 76px;
                right: 16px;
                padding: 12px 20px;
                font-size: 0.875rem;
            }

            .site-header {
                height: 64px;
            }

            .site-header .nav-inner {
                padding: 0 16px;
            }

            .main-nav {
                gap: 2px;
            }

            .main-nav a {
                padding: 8px 12px;
                font-size: 0.875rem;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-pad: 60px;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-header {
                height: 60px;
            }

            .site-header .nav-inner {
                padding: 0 16px;
            }

            .brand-name {
                font-size: 1.05rem;
            }

            .main-nav {
                display: none;
            }

            .header-cta {
                margin-left: 0;
            }

            .header-cta .btn {
                padding: 8px 18px;
                font-size: 0.875rem;
            }

            .hero-content {
                padding: 90px 16px 72px;
            }

            .hero h1 {
                font-size: clamp(2.2rem, 11vw, 3.2rem);
            }

            .hero-desc {
                font-size: 1rem;
                margin-bottom: 28px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn {
                display: flex;
            }

            .hero-card-wrap {
                margin-top: 16px;
            }

            .hero-card .card-img img,
            .hero-card .card-img {
                height: 180px;
            }

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

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }

            .float-cta {
                bottom: 76px;
                right: 16px;
                left: auto;
                padding: 12px 20px;
                font-size: 0.875rem;
            }

            .features-img-main img {
                height: 300px;
            }

            .feature-focus-card {
                position: relative;
                bottom: 0;
                right: 0;
                top: -24px;
                margin: 0 16px 0 auto;
                max-width: none;
                width: calc(100% - 32px);
                z-index: 2;
            }

            .device-screen img,
            .device-screen {
                height: 280px;
            }

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

            .stat-item {
                padding-left: 12px;
            }

            .stat-label {
                font-size: 0.8125rem;
            }

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

            .news-card-featured {
                grid-column: span 1;
            }

            .news-card-featured .news-img img {
                height: 180px;
            }

            .cta-card {
                padding: 44px 24px;
            }

            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .cta-note {
                font-size: 0.8125rem;
            }

            .bottom-tabs {
                display: flex;
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.96);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                height: 60px;
                z-index: 1100;
                border-top: 1px solid rgba(226, 233, 240, 0.8);
                box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.04);
                padding-bottom: env(safe-area-inset-bottom);
            }

            .bottom-tab {
                flex: 1;
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 4px;
                background: none;
                border: none;
                padding: 4px 0;
                color: var(--text-secondary);
                font-size: 10px;
                font-weight: 500;
                text-decoration: none;
            }

            .bottom-tab svg,
            .bottom-tab .tab-icon {
                width: 22px;
                height: 22px;
            }

            .bottom-tab.active {
                color: var(--primary);
                font-weight: 600;
            }

            body {
                padding-bottom: calc(60px + env(safe-area-inset-bottom));
            }

            .footer-col ul li+li {
                margin-top: 8px;
            }
        }

        @media (max-width: 359px) {
            .brand-name {
                font-size: 0.95rem;
            }

            .hero-content {
                padding-left: 12px;
                padding-right: 12px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }

            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

        /* --- 展示demo区切换 --- */
        .showcase-note {
            font-size: 0.8125rem;
            color: var(--text-secondary);
            margin-top: 14px;
            padding-left: 14px;
            border-left: 2px solid var(--primary);
            line-height: 1.8;
            background: rgba(29, 155, 191, 0.02);
            padding-top: 4px;
            padding-bottom: 4px;
        }

/* roulang page: category1 */
:root{
  --primary:#20A6C9;
  --primary-soft:rgba(32,166,201,0.12);
  --accent:#F0504B;
  --accent-dark:#d93b36;
  --dark:#0B1118;
  --dark-2:#101B24;
  --light:#F6F9FB;
  --white:#fff;
  --text:#12181F;
  --muted:#6B7684;
  --border:#E2E9F0;
  --card-border:rgba(224,233,242,0.85);
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-sm:0 4px 14px rgba(15,23,36,0.05);
  --shadow-md:0 12px 30px rgba(15,23,36,0.08);
  --shadow-lg:0 18px 36px rgba(15,23,36,0.12);
  --font-main:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Inter",-apple-system,sans-serif;
  --font-display:"Inter","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-main);background:var(--light);color:var(--text);font-size:1rem;line-height:1.8;min-width:320px;-webkit-font-smoothing:antialiased}
body::selection{background:rgba(32,166,201,0.25)}
a{color:inherit;text-decoration:none;transition:color .2s ease, border-color .2s ease, background .2s ease}
a:hover,a:focus-visible{outline:none}
a:focus-visible{box-shadow:0 0 0 2px var(--primary)}
img{max-width:100%;display:block}
ul,ol{list-style:none}
input,button,textarea{font-family:inherit;font-size:1rem}
button{cursor:pointer;background:none;border:none}
p{overflow-wrap:break-word}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}

/* header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;height:72px;
  display:flex;align-items:center;
  background:rgba(11,17,24,0.55);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,0.08);
  transition:background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(11,17,24,0.88);
  box-shadow:0 8px 30px rgba(0,0,0,0.18);
}
.nav-inner{
  width:min(1200px,100%);margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;position:relative;z-index:2}
.brand-logo{width:36px;height:36px;display:inline-flex;align-items:center;flex-shrink:0}
.brand-logo svg{width:100%;height:100%}
.brand-name{font-size:1.35rem;font-weight:800;color:#fff;letter-spacing:.03em;line-height:1.2}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
  color:rgba(255,255,255,0.82);font-weight:500;font-size:.9375rem;
  padding:9px 14px;border-radius:999px;transition:all .25s ease;
  position:relative;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,0.08)}
.main-nav a.active{color:#fff;background:rgba(32,166,201,0.18)}
.main-nav a.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:2px;
  width:16px;height:3px;border-radius:999px;background:var(--primary);
}
.header-cta{margin-left:6px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  border-radius:999px;font-weight:600;line-height:1;
  transition:all .25s ease;white-space:nowrap;border:1px solid transparent;
}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(240,80,75,0.45)}
.btn-sm{padding:10px 18px;font-size:.875rem}
.btn-md{padding:14px 26px;font-size:.9375rem}
.btn-lg{padding:16px 32px;font-size:1rem}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(240,80,75,0.26)}
.btn-primary:hover{background:#e3463f;transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,80,75,0.32)}
.btn-outline{border-color:rgba(255,255,255,0.6);color:#fff;background:rgba(255,255,255,0.04)}
.btn-outline:hover{background:#fff;color:#0B1118;border-color:#fff;transform:translateY(-2px)}
.btn-dark-outline{border-color:#C9D4DD;color:#2A3644;background:#fff}
.btn-dark-outline:hover{border-color:#20A6C9;color:#20A6C9;background:rgba(32,166,201,0.06);transform:translateY(-2px)}

/* mobile bottom nav */
.mobile-bar{
  position:fixed;bottom:0;left:0;right:0;z-index:900;height:calc(62px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,0.92);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-top:1px solid #E4EBF1;display:none;align-items:center;justify-content:space-around;
  padding:0 6px calc(env(safe-area-inset-bottom));
  box-shadow:0 -6px 18px rgba(15,23,36,0.05);
}
.mobile-bar a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  width:25%;padding:8px 4px 6px;color:#8A94A3;font-size:.72rem;font-weight:600;
  transition:color .2s;
}
.mobile-bar a svg{width:21px;height:21px}
.mobile-bar a.active{color:var(--accent)}
/* get-entry floater */
.float-cta{
  position:fixed;right:20px;bottom:20px;z-index:860;display:flex;align-items:center;
  color:#fff;background:var(--accent);gap:6px;box-shadow:0 8px 22px rgba(240,80,75,0.3);
  padding:0;border-radius:999px;opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity .4s ease, transform .4s ease, bottom .4s ease;
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta a{display:flex;align-items:center;gap:8px;padding:13px 22px;color:#fff;font-weight:700;font-size:.9375rem}
.float-cta svg{width:18px;height:18px}
.float-cta:hover{background:#e3463f;box-shadow:0 12px 28px rgba(240,80,75,0.4)}
html{--safe-bottom:env(safe-area-inset-bottom)}

/* category page hero */
.page-hero{
  position:relative;min-height:420px;display:flex;align-items:center;overflow:hidden;
  background:
    linear-gradient(135deg,#0E1720 0%,#0B1118 70%,#0A1017 100%);
  padding:148px 0 86px;color:#fff;
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:url('/assets/images/backpic/back-2.png') no-repeat center/cover;
  opacity:.42;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(80deg,rgba(11,17,24,0.92) 0%,rgba(11,17,24,0.55) 60%,rgba(11,17,24,0.35) 100%);
}
.page-hero .container{position:relative;z-index:3}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:.875rem;color:rgba(255,255,255,0.58);margin-bottom:24px}
.breadcrumb a{color:rgba(255,255,255,0.75);transition:color .2s}
.breadcrumb a:hover{color:#fff}
.breadcrumb i{font-style:normal;color:rgba(255,255,255,0.34)}
.eyebrow{font-size:.75rem;font-weight:700;letter-spacing:.18em;display:inline-flex;align-items:center;gap:10px;color:var(--primary);text-transform:uppercase;margin-bottom:12px;font-family:var(--font-display)}
.eyebrow::before{content:"—";opacity:.8}
.page-hero h1{
  font-size:clamp(2.4rem,6vw,4rem);font-weight:800;letter-spacing:-0.02em;
  line-height:1.14;color:#fff;max-width:800px;
}
.page-hero .hero-sub{
  margin-top:22px;max-width:660px;color:rgba(255,255,255,0.78);
  font-size:1.0625rem;line-height:1.9;
}
.hero-actions{display:flex;align-items:center;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-meta{
  display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:36px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,0.14);color:rgba(255,255,255,0.55);font-size:.875rem;
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta svg{width:16px;height:16px}

/* banner spotlight */
.section{border-radius:var(--radius-md)}
.section-space{padding:96px 0}
.sec-head{max-width:780px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head .eyebrow{color:var(--primary);font-size:.75rem}
.sec-head h2{font-size:clamp(1.75rem,4vw,2.75rem);font-weight:700;letter-spacing:-0.02em;line-height:1.25;margin-bottom:16px}
.sec-head p{color:var(--muted);font-size:1rem;line-height:1.9}
.sec-head p strong{color:var(--text);font-weight:600}
.banner-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:300px;
  background:#0B1118;display:flex;align-items:flex-end;
  box-shadow:var(--shadow-md);
}
.banner-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0.75;transition:opacity .6s ease,transform 8s ease}
.banner-card:hover img{opacity:0.88;transform:scale(1.02)}
.banner-card .shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,17,24,0.42) 0%,rgba(11,17,24,0.25) 35%,rgba(11,17,24,0.9) 100%)}
.banner-content{position:relative;z-index:2;padding:46px 44px;color:#fff}
.banner-tag{
  display:inline-flex;align-items:center;gap:6px;background:rgba(32,166,201,0.3);
  border:1px solid rgba(160,230,246,0.35);font-size:.75rem;color:#e6faff;
  border-radius:999px;padding:5px 12px;margin-bottom:16px;font-weight:600;
}
.banner-content h3{font-size:clamp(1.6rem,3.2vw,2.4rem);font-weight:700;max-width:620px;line-height:1.4;letter-spacing:-0.02em}
.banner-content p{margin-top:14px;color:rgba(255,255,255,0.84);max-width:660px;font-size:.9688rem}
.banner-link{margin-top:20px;color:#fff;font-weight:700;display:inline-flex;align-items:center;gap:8px;font-size:.9375rem;border-bottom:2px solid var(--primary);padding-bottom:2px;transition:gap .25s ease,border-color .25s ease;color:var(--primary)}
.banner-link:hover{gap:12px;border-color:#fff;color:#fff}

/* category grid product */
.mix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.info-card{
  background:var(--white);border-radius:var(--radius-md);overflow:hidden;
  border:1px solid var(--card-border);display:flex;flex-direction:column;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c4d4df}
.ic-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#eef3f7}
.ic-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.info-card:hover .ic-thumb img{transform:scale(1.06)}
.ic-badge{
  position:absolute;top:14px;left:14px;z-index:2;background:rgba(11,17,24,0.75);
  color:#fff;border:1px solid rgba(255,255,255,0.22);font-size:.75rem;
  padding:3px 10px;border-radius:999px;backdrop-filter:blur(4px);font-weight:500;
}
.ic-body{padding:24px;display:flex;flex-direction:column;flex:1}
.ic-tag{display:flex;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.tag{
  display:inline-flex;align-items:center;background:var(--primary-soft);color:#11778f;
  font-size:.75rem;font-weight:600;padding:4px 10px;border-radius:8px;line-height:1.4;
}
.tag-accent{background:rgba(240,80,75,0.1);color:#c93834}
.ic-body h3{font-size:1.25rem;font-weight:700;line-height:1.5;margin-bottom:10px;letter-spacing:-0.01em}
.ic-body h3 a{transition:color .2s}
.ic-body h3 a:hover{color:var(--primary)}
.ic-body p{font-size:.875rem;line-height:1.8;color:#536170;flex:1}
.ic-bottom{
  display:flex;align-items:center;justify-content:space-between;margin-top:18px;
  font-size:.8125rem;color:var(--muted);padding-top:16px;border-top:1px solid #edf1f5;
}

/* feature list / value identity */
.value-strip{
  background:#fff;border-radius:var(--radius-lg);border:1px solid var(--border);
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;overflow:hidden;box-shadow:var(--shadow-sm);
}
.value-item{padding:36px 34px;border-right:1px solid var(--border)}
.value-item:nth-child(3){border-right:0}
.value-num{
  font-family:var(--font-display);font-size:2.2rem;font-weight:800;line-height:1;
  color:transparent;background:linear-gradient(135deg,var(--primary),#60C8DE);
  -webkit-background-clip:text;background-clip:text;margin-bottom:10px;
}
.value-item h3{font-size:1.0625rem;font-weight:700;margin-bottom:10px}
.value-item p{font-size:.9063rem;color:var(--muted);line-height:1.8}
.right-section{
  display:flex;flex-direction:column;gap:22px;
}
.mini-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  padding:24px;transition:box-shadow .3s ease,transform .3s ease;
}
.mini-item:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.mini-item h3{font-size:1.375rem;font-weight:700;margin-bottom:6px}
.mini-sub{color:var(--muted);font-size:.85rem;margin-bottom:14px}
.mini-item p{font-size:.9375rem;color:#3a4652;line-height:1.8}

/* rows of content frames */
.frame-row{
  display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:start;
}
.frame-sticky{position:sticky;top:110px}
.frame-list{border-top:1px solid var(--border)}
.frame-item{
  display:flex;gap:22px;padding:34px 0;border-bottom:1px solid var(--border);align-items:flex-start;
  transition:background .2s ease;
}
.frame-item:hover .number{color:var(--accent)}
.frame-num{
  font-family:var(--font-display);font-size:2.4rem;font-weight:800;color:rgba(11,17,24,0.18);
  line-height:1.05;flex-shrink:0;width:64px;transition:color .2s;
}
.frame-content{flex:1}
.frame-content .frame-label{
  display:inline-flex;font-size:.75rem;border-radius:999px;padding:3px 10px 2px;
  margin-bottom:12px;background:rgba(32,166,201,0.1);color:#11778f;font-weight:700;letter-spacing:.02em;
}
.frame-content h3{font-size:1.3rem;font-weight:700;line-height:1.45;margin-bottom:9px}
.frame-content p{color:#536170;font-size:.95rem}
.frame-tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.frame-tag-row .tag{font-size:.75rem}

/* cta block */
.cta-box{
  position:relative;border-radius:var(--radius-lg);padding:74px 60px;overflow:hidden;
  color:#fff;background:#0B1118;display:block;
}
.cta-box::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:url('/assets/images/backpic/back-3.webp') no-repeat center/cover;opacity:.35;
}
.cta-box::after{content:"";position:absolute;inset:0;background:linear-gradient(96deg,rgba(11,17,24,.96),rgba(11,17,24,.72))}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;gap:30px;flex-wrap:wrap;justify-content:space-between}
.cta-inner h2{font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:700;line-height:1.3;margin-bottom:8px;max-width:540px;letter-spacing:-0.02em}
.cta-inner p{color:rgba(255,255,255,0.79);max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;z-index:3}

/* faq */
.faq-panel{
  display:grid;grid-template-columns:0.85fr 1.15fr;gap:50px;align-items:start;
}
.faq-left h2{font-size:clamp(1.7rem,3.6vw,2.4rem);font-weight:800;line-height:1.35;margin-bottom:12px;letter-spacing:-0.02em}
.faq-left p{color:var(--muted)}
.faq-sticky{position:sticky;top:110px}
.faq-list{border-top:1px solid var(--border)}
.faq-item{border-bottom:1px solid var(--border);padding:0}
.faq-q{
  width:100%;text-align:left;display:flex;justify-content:space-between;align-items:flex-start;
  gap:20px;padding:24px 6px;font-weight:700;font-size:1rem;color:var(--text);
  transition:color .25s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-q .icon{
  flex-shrink:0;width:26px;height:26px;position:relative;border-radius:50%;
  border:1px solid currentColor;transition:transform .3s ease,background .3s ease,color .3s ease, border-color .3s;
}
.faq-q .icon::before,.faq-q .icon::after{content:"";position:absolute;top:50%;left:50%;background:currentColor;transition:transform .3s ease;transform:translate(-50%,-50%)}
.faq-q .icon::before{width:11px;height:1.5px}
.faq-q .icon::after{width:1.5px;height:11px}
.faq-item.open .faq-q{color:var(--primary)}
.faq-item.open .faq-q .icon{transform:rotate(45deg);border-color:var(--primary)}
.faq-a{
  height:0;overflow:hidden;transition:height .3s ease;
}
.faq-a-inner{padding:0 46px 26px 6px;color:#536170;font-size:.9375rem;line-height:1.95}
.faq-a-inner strong{color:var(--text)}

/* footer */
.site-footer{background:#0B1118;color:rgba(255,255,255,0.74);padding:60px 0 32px;margin-top:0}
.site-footer a{transition:color .2s}
.footer-grid{display:grid;grid-template-columns:1.15fr .8fr .8fr 1.2fr;gap:30px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,0.1)}
.footer-brand .brand{color:#fff}
.footer-desc{font-size:.875rem;line-height:1.8;color:rgba(255,255,255,0.5);max-width:320px;margin-top:10px}
.footer-title{font-size:.9375rem;font-weight:700;color:#fff;margin-bottom:18px}
.footer-col ul li{margin-bottom:9px}
.footer-col ul li a{color:rgba(255,255,255,0.62);font-size:.875rem}
.footer-col ul li a:hover{color:var(--primary)}
.footer-contact{color:rgba(255,255,255,0.78);font-size:.875rem}
.footer-contact p{margin-bottom:10px;line-height:1.8}
.official-link{color:rgba(255,255,255,0.8);font-weight:600}
.official-link:hover{color:var(--primary)}
.footer-text{
  padding:18px 0;border-bottom:1px solid rgba(255,255,255,0.08);
  color:rgba(255,255,255,0.45);font-size:.8125rem;line-height:1.9;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding-top:24px;color:rgba(255,255,255,0.42);font-size:.8125rem;
}

/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* responsive */
@media (max-width:1100px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .value-strip{grid-template-columns:1fr 1fr}
  .value-item:nth-child(3){border-right:0;border-top:1px solid var(--border);grid-column:1/-1}
}
@media (max-width:980px){
  .main-nav{display:none}
  .header-cta{display:block;margin-left:auto}
  .mobile-bar{display:flex}
  .section-space{padding:80px 0}
  .mix-grid{grid-template-columns:repeat(2,1fr)}
  .faq-panel{grid-template-columns:1fr;gap:32px}
  .faq-sticky{position:static}
  .frame-row{grid-template-columns:1fr}
  .frame-sticky{position:static;margin-bottom:12px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-box{padding:60px 30px}
}
@media (max-width:640px){
  .site-header{height:64px}
  .nav-inner{padding:0 18px}
  .header-cta .btn{padding:9px 16px;font-size:.8125rem}
  .brand-name{font-size:1.12rem}
  .container{padding:0 16px}
  .page-hero{padding:130px 0 66px;min-height:auto}
  .page-hero h1{max-width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{display:flex;justify-content:center;width:100%}
  .section-space{padding:64px 0}
  .sec-head{margin-bottom:32px}
  .banner-content{padding:28px 22px}
  .banner-card{min-height:0}
  .mix-grid{grid-template-columns:1fr;gap:16px}
  .value-strip{grid-template-columns:1fr}
  .value-item{border-right:0;border-bottom:1px solid var(--border);padding:26px 22px}
  .value-item:nth-child(3){border-bottom:0;border-top:0;grid-column:auto}
  .frame-item{gap:14px;padding:26px 0}
  .frame-num{width:42px;font-size:1.8rem}
  .frame-content h3{font-size:1.125rem}
  .cta-box{border-radius:16px;padding:48px 22px;margin:64px 0 0}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{justify-content:center;width:100%}
  .hero-meta{gap:10px 18px;font-size:.8125rem}
  .footer-grid{grid-template-columns:1fr}
  .float-cta{bottom:calc(70px + env(safe-area-inset-bottom));right:14px}
  .float-cta a{padding:11px 17px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}

/* roulang page: article */
:root{
  --primary:#20A6C9;
  --primary-deep:#168DAF;
  --primary-soft:rgba(32,166,201,.13);
  --accent:#EE4A47;
  --accent-deep:#D9302E;
  --bg-body:#F4F8FA;
  --bg-card:#FFFFFF;
  --dark-1:#0B1118;
  --dark-2:#101D27;
  --text-1:#1C242C;
  --text-2:#6B7684;
  --text-3:#96A0AA;
  --line-1:#E4EBF1;
  --line-dark:rgba(255,255,255,.14);
  --radius-xl:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-sm:0 6px 18px rgba(12,23,36,.06);
  --shadow-md:0 16px 32px rgba(12,23,36,.09);
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:var(--bg-body);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
.container{max-width:var(--container);margin:0 auto;padding-left:clamp(18px,4vw,44px);padding-right:clamp(18px,4vw,44px)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:999px;font-weight:600;font-size:15px;
  line-height:1.2;border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  will-change:transform;
}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px rgba(238,74,71,.24)}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 13px 28px rgba(238,74,71,.3)}
.btn-primary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn-secondary{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;backdrop-filter:blur(4px)}
.btn-secondary:hover{background:#fff;color:#0B1118;border-color:#fff;transform:translateY(-1px)}
.btn-secondary:focus-visible{outline:2px solid #fff;outline-offset:3px}
.btn-line{background:transparent;border-color:#D3DDE6;color:#26313B}
.btn-line:hover{border-color:var(--primary);color:var(--primary-deep);transform:translateY(-1px)}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;
  border-radius:999px;font-size:13px;font-weight:500;line-height:1.2;
  background:var(--primary-soft);color:#187FA0;
}
.tag-red{background:rgba(238,74,71,.1);color:var(--accent-deep)}
.meta-light{background:rgba(255,255,255,.1);color:rgba(255,255,255,.8)}

/* header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:72px;transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
  background:transparent;border-bottom:1px solid transparent;color:#fff;
}
.site-header.scrolled{
  background:rgba(11,17,24,.82);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.1);
  box-shadow:0 12px 28px rgba(0,0,0,.14);
}
.nav-inner{
  height:72px;max-width:var(--container);margin:0 auto;padding:0 clamp(18px,4vw,44px);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-logo{display:inline-flex;width:40px;height:40px}
.brand-logo svg{width:100%;height:100%;display:block}
.brand-name{font-weight:800;font-size:20px;letter-spacing:.02em;color:#fff;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:8px;flex:1;justify-content:center}
.main-nav a{
  position:relative;display:inline-flex;align-items:center;padding:9px 16px;
  color:rgba(255,255,255,.8);font-weight:500;font-size:15px;
  border-radius:999px;transition:color .2s ease,background .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:4px;height:2px;
  border-radius:999px;background:var(--primary);transform:scaleX(0);transform-origin:center;
  transition:transform .22s ease;
}
.main-nav a:hover{color:#fff}
.main-nav a.active{color:#fff;font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.header-cta{flex-shrink:0}
.header-cta .btn{padding:9px 20px}
.site-footer a:focus-visible,
.main-nav a:focus-visible,.footer-link:focus-visible,.post-card a:focus-visible{
  outline:2px solid rgba(32,166,201,.8);outline-offset:3px;border-radius:6px;
}

/* page lead */
.page-lead{
  background:
    linear-gradient(115deg,rgba(9,17,25,.94) 0%,rgba(13,24,33,.82) 55%,rgba(9,17,25,.72)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;padding:132px 0 60px;
  position:relative;overflow:hidden;border-bottom:1px solid rgba(255,255,255,.09);
}
.page-lead .container{position:relative}
.lead-row{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap}
.lead-kicker{
  display:inline-flex;align-items:center;gap:9px;color:#AEE5F2;font-size:14px;
  font-weight:600;letter-spacing:.05em;margin-bottom:14px;
}
.lead-kicker::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:99px}
.breadcrumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:rgba(255,255,255,.68);font-size:14px}
.breadcrumb a{color:rgba(255,255,255,.9);transition:color .2s}
.breadcrumb a:hover{color:#7EDEF0}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{color:#fff}
.lead-note{font-size:14px;color:rgba(255,255,255,.74);margin-top:16px;max-width:720px}
.page-lead .lead-back{flex-shrink:0}
.link-white{
  display:inline-flex;align-items:center;gap:7px;color:#fff;font-weight:600;font-size:15px;
  border:1px solid rgba(255,255,255,.34);border-radius:999px;padding:9px 20px;
  transition:background .2s,border-color .2s,transform .2s;
}
.link-white:hover{background:#fff;color:#0B1118;border-color:#fff;transform:translateX(-2px)}
.page-lead::after{
  content:"";position:absolute;left:8%;bottom:-1px;width:36%;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);
}

/* article main */
.article-main{padding:60px 0 5px}
.article-layout{max-width:920px;margin:0 auto}
.article-shell{
  background:var(--bg-card);border:1px solid #E8EEF3;border-radius:var(--radius-xl);
  box-shadow:var(--shadow-md);overflow:hidden;
}
.article-inner{max-width:792px;margin:0 auto;padding:clamp(28px,6vw,64px) clamp(22px,5vw,52px)}
.article-cat-line{display:flex;align-items:center;gap:14px;margin-bottom:22px;flex-wrap:wrap}
.article-title{
  font-size:clamp(1.9rem,4.4vw,2.85rem);line-height:1.24;font-weight:800;color:var(--text-1);
  letter-spacing:-.01em;margin:0 0 20px;word-break:break-word;
}
.article-deck{
  font-size:17px;line-height:1.8;color:var(--text-2);border-left:3px solid var(--primary);
  padding-left:18px;margin:0 0 24px;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;
  padding:16px 0 26px;border-bottom:1px solid #EDF2F6;margin-bottom:32px;
  color:var(--text-2);font-size:14px;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3CDD6;flex-shrink:0}
.article-meta time{color:var(--text-1)}
.article-meta .source{color:var(--text-3)}
.cms-content{
  font-size:16.5px;line-height:1.95;color:#27303A;word-break:break-word;
}
.cms-content > * + *{margin-top:1.25em}
.cms-content h2{
  font-size:1.65rem;line-height:1.4;margin:1.8em 0 .65em;color:#15202B;
  padding-bottom:.35em;border-bottom:1px solid #EDF2F5;
}
.cms-content h3{
  font-size:1.3rem;line-height:1.45;margin:1.5em 0 .55em;color:#1B2834;
}
.cms-content h4{font-size:1.12rem;line-height:1.5;margin:1.25em 0 .5em;color:#203142}
.cms-content p{margin:1.15em 0;color:#2D3B48}
.cms-content a{color:var(--primary-deep);border-bottom:1px solid rgba(32,166,201,.4);transition:border-color .2s,color .2s}
.cms-content a:hover{color:#0F718A;border-color:#0F718A}
.cms-content strong{color:#1A242D;font-weight:700}
.cms-content ul,.cms-content ol{margin:1.2em 0;padding-left:1.5em}
.cms-content ul{list-style:disc}
.cms-content ol{list-style:decimal}
.cms-content li{margin:.5em 0;padding-left:.25em}
.cms-content li::marker{color:var(--primary)}
.cms-content blockquote{
  margin:1.7em 0;padding:.9em 1.4em;border-left:4px solid var(--primary);
  background:#F1F7FA;border-radius:0 12px 12px 0;color:#36434F;
}
.cms-content blockquote p{margin:.25em 0}
.cms-content img{border-radius:16px;margin:1.7em auto;box-shadow:0 14px 30px rgba(12,23,36,.08)}
.cms-content pre{
  background:#0B1118;color:#E3F0F5;border-radius:12px;overflow:auto;
  padding:22px 24px;line-height:1.7;margin:1.8em 0;font-size:14px;
}
.cms-content code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  background:#EAF1F6;padding:.15em .4em;border-radius:6px;font-size:.9em;color:#19708A;
}
.cms-content pre code{background:transparent;padding:0;color:inherit;font-size:.95em}
.cms-content table{width:100%;border-collapse:collapse;margin:1.8em 0;overflow:hidden;border-radius:10px}
.cms-content th,.cms-content td{padding:12px 16px;border:1px solid #DFE7EE;text-align:left}
.cms-content th{background:#F1F7FA;font-weight:700;color:#1B2A35}
.cms-content td{background:#fff;color:#2D3B48}
.article-cta-row{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  background:#F5F9FC;border:1px solid #E5EDF2;border-radius:16px;padding:22px 26px;margin-top:48px;
}
.article-cta-row .label{font-size:15px;color:var(--text-1);font-weight:600;line-height:1.6;display:flex;align-items:center;gap:10px}
.article-cta-row .label svg{flex-shrink:0}

/* empty article */
.empty-wrap{max-width:600px;margin:0 auto;padding:80px 0 120px}
.empty-post{
  background:var(--bg-card);border:1px solid #E6EDF3;border-radius:var(--radius-xl);
  box-shadow:var(--shadow-sm);padding:60px clamp(30px,8vw,72px);text-align:center;
}
.empty-icon{width:74px;height:74px;margin:0 auto 22px;border-radius:50%;background:#F1F6F9;display:flex;align-items:center;justify-content:center}
.empty-icon svg{width:36px;height:36px;stroke:var(--primary)}
.empty-post h1{font-size:clamp(1.8rem,4vw,2.4rem);font-weight:800;margin-bottom:26px;color:var(--text-1)}
.empty-post .btn{padding:13px 36px;font-size:16px}

/* related */
.related-section{padding:74px 0 22px;background:transparent}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--text-2);text-transform:uppercase}
.section-eyebrow::before{content:"";width:18px;height:2px;background:var(--primary)}
.section-title{font-size:clamp(1.8rem,3vw,2.2rem);font-weight:800;color:#15202C;letter-spacing:-.01em}
.related-note{color:var(--text-2);font-size:14px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--bg-card);border:1px solid #E8EEF3;
  border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-5px);box-shadow:0 20px 34px rgba(12,23,36,.11);border-color:#D4E4EB}
.post-card-img{
  aspect-ratio:16/10;overflow:hidden;position:relative;background:#ccd4dc;
}
.post-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.post-card:hover .post-card-img img{transform:scale(1.03)}
.post-card-body{display:flex;flex-direction:column;padding:22px 24px 24px;flex:1}
.post-card-tagrow{display:flex;align-items:center;margin-bottom:12px}
.post-card-title{font-size:1.08rem;font-weight:700;line-height:1.5;color:#1D2934;transition:color .2s}
.post-card:hover .post-card-title{color:var(--primary-deep)}
.post-card-text{margin-top:8px;color:var(--text-2);font-size:14px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card-meta{margin-top:16px;padding-top:14px;border-top:1px solid #F0F3F7;display:flex;align-items:center;gap:8px;color:var(--text-3);font-size:13px}
.post-card-link{position:absolute;inset:0;z-index:1;border-radius:inherit}

/* cta band */
.cta-band{padding:76px 0 88px;background:transparent}
.cta-block{
  background:
    radial-gradient(circle at 90% 0,rgba(32,166,201,.18),transparent 38%),
    linear-gradient(135deg,#0B1118,#101D27 70%);
  border-radius:28px;padding:clamp(32px,6vw,66px);color:#fff;overflow:hidden;position:relative;
  display:grid;grid-template-columns:1.2fr .8fr;align-items:center;gap:36px;box-shadow:0 30px 60px rgba(8,16,25,.22);
}
.cta-block::before{
  content:"";position:absolute;right:-10%;top:-24%;width:360px;height:360px;border:1px solid rgba(255,255,255,.1);border-radius:50%;
}
.cta-block::after{
  content:"";position:absolute;right:5%;top:-3%;width:220px;height:220px;border:1px solid rgba(255,255,255,.08);
  border-radius:50%;border-style:dashed;
}
.cta-copy h2{font-size:clamp(1.65rem,3vw,2.2rem);font-weight:800;line-height:1.35;margin-bottom:14px}
.cta-copy p{color:rgba(255,255,255,.66);max-width:560px;margin-bottom:0;font-size:15px}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:13px;position:relative;z-index:2}
.cta-actions .btn{width:max-content}
.cta-actions small{color:rgba(255,255,255,.55);font-size:13px;display:flex;align-items:center;gap:8px}
.cta-actions small svg{stroke:var(--primary);flex-shrink:0}

/* footer */
.site-footer{background:#0B1118;color:rgba(255,255,255,.72);padding:66px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:42px}
.footer-title{font-size:16px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.02em}
.footer-brand .footer-desc{font-size:14px;color:rgba(255,255,255,.6);line-height:1.75;max-width:300px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(255,255,255,.66);font-size:14px;transition:color .2s,padding-left .2s}
.footer-col a:hover{color:#7DD8EB;padding-left:4px}
.footer-col p{line-height:1.8;font-size:14px;color:rgba(255,255,255,.55)}
.footer-contact p{display:flex;align-items:center;gap:8px}
.footer-text{margin-top:6px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;font-size:13px;color:rgba(255,255,255,.42);line-height:1.85}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:10px;padding:18px 0 22px;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .official-link{color:rgba(255,255,255,.72);font-weight:500}
.footer-bottom .official-link:hover{color:#fff}

/* floating cta */
.float-cta{
  position:fixed;right:24px;bottom:30px;z-index:96;opacity:0;visibility:hidden;transform:translateY(18px);
  transition:opacity .3s,transform .3s,visibility .3s;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta .btn{box-shadow:0 18px 36px rgba(238,74,71,.34);padding:14px 28px;font-size:15px}

/* mobile bottom */
.bottom-dock{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:120;height:calc(64px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-top:1px solid #E4EBF1;
}
.bottom-dock-inner{display:grid;grid-template-columns:repeat(3,1fr);height:64px;align-items:center}
.dock-item{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:#7A8590;
  font-size:11px;line-height:1.3;font-weight:500;transition:color .2s;height:100%;
}
.dock-item svg{width:22px;height:22px;stroke:currentColor;transition:transform .2s}
.dock-item:hover{color:#0F718A}
.dock-item.active{color:var(--accent);font-weight:700}
.dock-item.active svg{transform:translateY(-1px)}

@media (max-width:1023px){
  .related-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .main-nav a{padding:9px 11px;font-size:14px}
  .brand-name{font-size:18px}
  .header-cta .btn{padding:8px 14px;font-size:14px}
  .cta-block{grid-template-columns:1fr}
  .cta-actions{align-items:flex-start;flex-direction:row;flex-wrap:wrap}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}

@media (max-width:767px){
  .top-note{display:none}
  .site-header.scrolled{background:rgba(11,17,24,.72)}
  .nav-inner{height:64px}
  .site-header{height:64px}
  .main-nav{display:none}
  .header-cta .btn{padding:8px 16px;font-size:13px}
  .brand-name{font-size:17px}
  .page-lead{padding:112px 0 46px}
  .lead-row{flex-direction:column;align-items:flex-start;gap:18px}
  .page-lead .lead-back{width:100%}
  .article-bottom-dock-spacer{height:72px}
  .bottom-dock{display:block}
  .article-main{padding:26px 0 2px}
  .article-inner{padding:30px 21px 42px;border-radius:20px}
  .article-cta-row{flex-direction:column;align-items:flex-start;padding:20px}
  .article-meta{gap:8px 12px;font-size:13px}
  .related-section{padding:48px 0 16px}
  .related-grid{grid-template-columns:1fr;gap:18px}
  .section-head{flex-direction:column;align-items:flex-start;gap:6px;margin-bottom:20px}
  .cta-band{padding:44px 0 74px}
  .cta-block{padding:30px 24px;border-radius:22px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%;justify-content:center}
  .float-cta{right:16px;bottom:82px}
  .float-cta .btn{padding:12px 20px;font-size:13px}
  .site-footer{padding:46px 0 26px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-brand .footer-desc{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .empty-wrap{padding:40px 0 90px}
}

@media (max-width:520px){
  .related-grid{grid-template-columns:1fr}
  .section-title{font-size:1.5rem}
  .article-title{font-size:1.6rem}
  .article-deck{font-size:15.5px;padding-left:14px}
  .cms-content{font-size:15.5px}
  .border, .footer-text{font-size:12.5px}
  .dock-item{font-size:10px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root {
            --primary: #20A6C9;
            --primary-light: #67D0E8;
            --primary-dark: #137A99;
            --accent: #F0504B;
            --accent-dark: #C93A36;
            --bg-dark: #0B1118;
            --bg-dark-2: #101B24;
            --bg-light: #F6F9FB;
            --text-main: #12181F;
            --text-sub: #6B7684;
            --border-light: #E2E9F0;
            --border-dark: rgba(255, 255, 255, 0.14);
            --white: #FFFFFF;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-light: 0 12px 30px rgba(15, 23, 36, 0.08);
            --shadow-hover: 0 18px 36px rgba(15, 23, 36, 0.12);
            --transition-base: 0.3s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Inter", -apple-system, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-light);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        a:hover {
            color: var(--primary);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 72px;
            background: rgba(11, 17, 24, 0.9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            z-index: 1000;
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(11, 17, 24, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .nav-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-logo {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .brand-logo svg {
            width: 100%;
            height: 100%;
        }
        .brand-name {
            color: var(--white);
            font-size: 1.375rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9375rem;
            font-weight: 500;
            position: relative;
            padding: 8px 2px;
            transition: color var(--transition-base);
        }
        .main-nav a:hover {
            color: var(--white);
        }
        .main-nav a.active {
            color: var(--white);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .header-cta {
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.9375rem;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: 999px;
            cursor: pointer;
            transition: all var(--transition-base);
            line-height: 1.4;
            text-align: center;
            border: 1px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(240, 80, 75, 0.3);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(240, 80, 75, 0.4);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 6px rgba(240, 80, 75, 0.3);
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: var(--white);
            backdrop-filter: blur(4px);
        }
        .btn-secondary:hover {
            background: var(--white);
            border-color: var(--white);
            color: var(--text-main);
            transform: translateY(-2px);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
        }
        .btn-ghost:hover {
            background: var(--primary);
            color: var(--white);
            transform: translateY(-2px);
        }
        .page-banner {
            background: linear-gradient(135deg, #0F1B26 0%, #0A1017 100%);
            padding: 150px 0 72px;
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(32, 166, 201, 0.6), transparent);
        }
        .banner-content {
            position: relative;
            z-index: 2;
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 40px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 20px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.875rem;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--primary-light);
        }
        .breadcrumb span {
            color: var(--primary-light);
        }
        .page-banner h1 {
            font-size: clamp(1.875rem, 4vw, 2.75rem);
            color: var(--white);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.01em;
            max-width: 580px;
            margin-bottom: 16px;
        }
        .page-banner p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 1.0625rem;
            line-height: 1.8;
            max-width: 560px;
        }
        .section {
            padding: 96px 0;
        }
        .section-head {
            margin-bottom: 48px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(32, 166, 201, 0.1);
            padding: 4px 12px;
            border-radius: 4px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: clamp(1.75rem, 4vw, 2.5rem);
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.3;
            letter-spacing: -0.01em;
        }
        .section-title.light {
            color: var(--white);
        }
        .section-desc {
            color: var(--text-sub);
            font-size: 1rem;
            max-width: 580px;
            margin-top: 14px;
            line-height: 1.8;
        }
        .feature-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-light);
            border: 1px solid rgba(226, 233, 240, 0.7);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card .cover-wrap {
            overflow: hidden;
            position: relative;
            aspect-ratio: 16/10;
            background: var(--bg-dark);
        }
        .feature-card .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .feature-card:hover .cover-wrap img {
            transform: scale(1.03);
        }
        .feature-card .card-body {
            padding: 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            background: rgba(32, 166, 201, 0.12);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 999px;
            white-space: nowrap;
        }
        .badge-red {
            background: rgba(240, 80, 75, 0.1);
            color: var(--accent);
        }
        .badge-dark {
            background: rgba(15, 23, 42, 0.08);
            color: var(--text-main);
        }
        .card-date {
            color: var(--text-sub);
            font-size: 0.8125rem;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .feature-card h3 {
            font-size: 1.375rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: 12px;
        }
        .feature-card h3 a {
            transition: color var(--transition-base);
        }
        .feature-card h3 a:hover {
            color: var(--primary);
        }
        .feature-card .card-text {
            color: var(--text-sub);
            font-size: 0.9375rem;
            line-height: 1.8;
            margin-bottom: 16px;
            flex: 1;
        }
        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--primary);
            font-size: 0.875rem;
            font-weight: 600;
            transition: gap var(--transition-base);
        }
        .read-more:hover {
            gap: 10px;
            color: var(--primary-dark);
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .card-grid .card-col:first-child {
            grid-column: 1 / -1;
        }
        .card-grid .card-col:first-child .feature-card {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
        }
        .card-grid .card-col:first-child .feature-card .cover-wrap {
            aspect-ratio: auto;
            height: 100%;
            min-height: 340px;
        }
        .highlight-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 48px;
        }
        .highlight-box {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-left: 4px solid var(--primary);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .highlight-box:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-light);
        }
        .highlight-box .num {
            font-family: 'Inter', sans-serif;
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .highlight-box h4 {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .highlight-box p {
            color: var(--text-sub);
            font-size: 0.875rem;
            line-height: 1.8;
        }
        .cta-banner {
            background: linear-gradient(135deg, var(--bg-dark-2) 0%, var(--bg-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 72px 64px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 500px;
            height: 500px;
            border: 1px solid rgba(32, 166, 201, 0.18);
            border-radius: 50%;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -60%;
            left: -20%;
            width: 400px;
            height: 400px;
            border: 1px solid rgba(240, 80, 75, 0.12);
            border-radius: 50%;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
        }
        .cta-inner h2 {
            color: var(--white);
            font-size: clamp(1.75rem, 4vw, 2.5rem);
            margin-bottom: 16px;
            font-weight: 700;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.0625rem;
            margin-bottom: 36px;
            line-height: 1.8;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .faq-section {
            background: linear-gradient(180deg, #F0F5F8 0%, #F6F9FB 100%);
        }
        .faq-wrap {
            display: grid;
            grid-template-columns: 360px 1fr;
            gap: 64px;
            align-items: start;
        }
        .faq-side {
            position: sticky;
            top: 96px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color var(--transition-base);
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-light);
        }
        .faq-q {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            text-align: left;
            transition: color var(--transition-base);
        }
        .faq-q:hover {
            color: var(--primary);
        }
        .faq-item.active .faq-q {
            color: var(--primary);
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            position: relative;
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--text-sub);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .faq-icon::before {
            width: 14px;
            height: 2px;
            top: 11px;
            left: 5px;
        }
        .faq-icon::after {
            width: 2px;
            height: 14px;
            top: 5px;
            left: 11px;
        }
        .faq-item.active .faq-icon::before,
        .faq-item.active .faq-icon::after {
            transform: rotate(45deg);
            background: var(--primary);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding var(--transition-base), border-color var(--transition-base);
            padding: 0 24px;
            line-height: 1.8;
            color: var(--text-sub);
            font-size: 0.9375rem;
            border-top: 0px solid var(--border-light);
        }
        .faq-item.active .faq-a {
            max-height: 300px;
            padding: 0 24px 20px;
            border-top-width: 1px;
        }
        .newsletter-card {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 40px;
            margin-top: 48px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-light);
        }
        .newsletter-card h3 {
            font-size: 1.5rem;
            font-weight: 600;
        }
        .newsletter-card p {
            color: var(--text-sub);
            margin-top: 8px;
        }
        .newsletter-form {
            display: flex;
            gap: 12px;
            background: var(--bg-light);
            padding: 8px;
            border-radius: 999px;
            border: 1px solid var(--border-light);
        }
        .newsletter-form input[type="email"] {
            padding: 10px 16px;
            border-radius: 999px;
            background: transparent;
            border: none;
            font-size: 0.9375rem;
            color: var(--text-main);
            width: 240px;
        }
        .newsletter-form input[type="email"]::placeholder {
            color: #9AA5B1;
        }
        .newsletter-form input[type="email"]:focus {
            outline: 2px solid var(--primary);
            outline-offset: 0;
            border-radius: 999px;
        }
        .stat-banner {
            background: var(--bg-dark);
            padding: 64px 0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-item .value {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 700;
            color: var(--white);
            font-family: 'Inter', sans-serif;
            line-height: 1.2;
        }
        .stat-item .value span {
            color: var(--primary);
            font-size: 2rem;
        }
        .stat-item .label {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.875rem;
            margin-top: 8px;
        }
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.6);
            padding: 64px 0 24px;
            font-size: 0.9375rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid var(--border-dark);
        }
        .footer-brand .footer-desc {
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.8;
            font-size: 0.875rem;
        }
        .footer-title {
            color: var(--white);
            font-weight: 600;
            margin-bottom: 18px;
            font-size: 1rem;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .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);
            transition: color var(--transition-base), padding-left var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-contact p {
            margin-bottom: 10px;
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.875rem;
            line-height: 1.7;
        }
        .footer-text {
            padding: 32px 0;
            border-bottom: 1px solid var(--border-dark);
            color: rgba(255, 255, 255, 0.35);
            font-size: 0.8125rem;
            line-height: 1.8;
        }
        .footer-bottom {
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            color: rgba(255, 255, 255, 0.35);
            font-size: 0.8125rem;
        }
        .official-link {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-base);
        }
        .official-link:hover {
            color: var(--primary-light);
        }
        .float-cta {
            position: fixed;
            right: 24px;
            bottom: 32px;
            background: var(--accent);
            color: var(--white);
            padding: 12px 22px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.9375rem;
            box-shadow: 0 8px 24px rgba(240, 80, 75, 0.4);
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            z-index: 900;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
        }
        .float-cta.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .float-cta:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
        }
        .bottom-tabs {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 60px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid rgba(226, 233, 240, 0.8);
            z-index: 1000;
        }
        .bottom-tab-items {
            display: flex;
            height: 100%;
            max-width: 400px;
            margin: 0 auto;
        }
        .bottom-tab {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            color: var(--text-sub);
            font-size: 0.6875rem;
            font-weight: 500;
            transition: color var(--transition-base);
        }
        .bottom-tab svg {
            width: 22px;
            height: 22px;
            stroke: currentColor;
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .bottom-tab.active {
            color: var(--accent);
        }
        .media-note {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(11, 17, 24, 0.75);
            color: var(--white);
            font-size: 0.7rem;
            padding: 5px 12px;
            border-radius: 999px;
            backdrop-filter: blur(4px);
            z-index: 2;
        }
        @media (max-width: 1023px) {
            .main-nav {
                display: none;
            }
            .header-cta .btn {
                padding: 8px 18px;
                font-size: 0.875rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .highlight-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px 24px;
            }
            .faq-wrap {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .faq-side {
                position: static;
                margin-bottom: 28px;
            }
            .bottom-tabs {
                display: block;
                padding-bottom: env(safe-area-inset-bottom);
            }
            body {
                padding-bottom: 60px;
            }
            .card-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .card-grid .card-col:first-child {
                grid-column: 1 / -1;
            }
            .card-grid .card-col:first-child .feature-card {
                display: block;
            }
            .card-grid .card-col:first-child .feature-card .cover-wrap {
                aspect-ratio: 16/10;
                min-height: 0;
            }
            .float-cta {
                bottom: calc(72px + env(safe-area-inset-bottom));
                right: 20px;
                padding: 10px 18px;
                font-size: 0.875rem;
            }
        }
        @media (max-width: 767px) {
            .nav-inner {
                padding: 0 16px;
            }
            .brand-name {
                font-size: 1.125rem;
            }
            .brand-logo {
                width: 32px;
                height: 32px;
            }
            .header-cta .btn {
                display: none;
            }
            .page-banner {
                padding: 120px 0 48px;
            }
            .banner-content {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            .page-banner h1 {
                font-size: 1.75rem;
            }
            .section {
                padding: 64px 0;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .card-grid .card-col:first-child {
                grid-column: 1;
            }
            .highlight-grid {
                grid-template-columns: 1fr;
            }
            .cta-banner {
                padding: 48px 32px;
            }
            .newsletter-card {
                padding: 28px;
                flex-direction: column;
                align-items: flex-start;
            }
            .newsletter-form {
                width: 100%;
                border-radius: var(--radius-md);
                flex-direction: column;
                background: var(--bg-light);
                padding: 12px;
                border: 1px solid var(--border-light);
            }
            .newsletter-form input[type="email"] {
                width: 100%;
                background: var(--white);
                border: 1px solid var(--border-light);
            }
            .newsletter-form .btn {
                width: 100%;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
            .footer-text {
                text-align: justify;
            }
            .faq-item .faq-a {
                font-size: 0.875rem;
            }
            .faq-q {
                font-size: 0.9375rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            .nav-inner {
                padding: 0 16px;
            }
            .card-grid {
                gap: 20px;
            }
            .highlight-grid {
                gap: 16px;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-item .label {
                font-size: 0.75rem;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition: none !important;
                animation: none !important;
                scroll-behavior: auto !important;
            }
        }