/* roulang page: index */
:root {
            --c-bg: #F6F8FA;
            --c-bg-dark: #0E1518;
            --c-primary: #C8F04B;
            --c-primary-end: #4DD07E;
            --c-accent: #FF7B45;
            --c-text: #16181D;
            --c-muted: #6E757F;
            --c-border: #E5E9EF;
            --c-white: #FFFFFF;
            --c-dark-text: #F4F7F9;
            --c-success: #22C55E;
            --c-warning: #F59E0B;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 10px 30px rgba(17, 24, 28, 0.06);
            --shadow-hover: 0 18px 44px rgba(17, 24, 28, 0.12);
            --transition-base: all 0.3s ease;
            --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
        }
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--c-bg);
            color: var(--c-text);
            line-height: 1.7;
            font-weight: 400;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            object-fit: cover;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        ul, ol {
            list-style: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--c-primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .site-header {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: transparent;
            transition: var(--transition-base);
            padding: 18px 0;
        }
        .site-header.scrolled {
            position: fixed;
            background: var(--c-white);
            box-shadow: 0 4px 30px rgba(17, 24, 28, 0.08);
            padding: 12px 0;
        }
        .site-header.scrolled .nav-logo-text {
            color: var(--c-text);
        }
        .site-header.scrolled .nav-logo-sub {
            color: var(--c-muted);
        }
        .site-header.scrolled .nav-channel a {
            color: var(--c-text);
        }
        .site-header.scrolled .nav-channel a:hover {
            color: var(--c-primary-end);
        }
        .site-header.scrolled .nav-search input {
            background: var(--c-bg);
            color: var(--c-text);
        }
        .site-header.scrolled .nav-search input::placeholder {
            color: var(--c-muted);
        }
        .site-header.scrolled .btn-login {
            color: var(--c-text);
            border-color: var(--c-border);
        }
        .site-header.scrolled .btn-login:hover {
            border-color: var(--c-primary);
        }
        .site-header.scrolled .menu-icon {
            color: var(--c-text);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            min-width: 180px;
        }
        .nav-logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--c-primary), var(--c-primary-end));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-bg-dark);
            font-size: 20px;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(77, 208, 126, 0.35);
        }
        .nav-logo-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--c-white);
            letter-spacing: 0.5px;
            line-height: 1.2;
            white-space: nowrap;
            transition: var(--transition-base);
        }
        .nav-logo-sub {
            font-size: 11px;
            color: rgba(244, 247, 249, 0.6);
            letter-spacing: 1px;
            text-transform: uppercase;
            font-weight: 400;
            white-space: nowrap;
        }
        .nav-channel {
            display: flex;
            align-items: center;
            gap: 28px;
            margin-left: auto;
        }
        .nav-channel a {
            font-size: 15px;
            font-weight: 500;
            color: rgba(244, 247, 249, 0.85);
            padding: 6px 2px;
            position: relative;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-channel a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(135deg, var(--c-primary), var(--c-primary-end));
            transition: var(--transition-base);
        }
        .nav-channel a:hover::after,
        .nav-channel a.active::after {
            width: 100%;
        }
        .nav-channel a.active {
            color: var(--c-primary);
            font-weight: 600;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
        }
        .nav-search {
            position: relative;
        }
        .nav-search input {
            width: 180px;
            height: 38px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-pill);
            padding: 0 16px 0 38px;
            font-size: 14px;
            color: var(--c-white);
            transition: var(--transition-base);
        }
        .nav-search input::placeholder {
            color: rgba(244, 247, 249, 0.5);
        }
        .nav-search input:focus {
            width: 220px;
            border-color: var(--c-primary);
            background: rgba(255, 255, 255, 0.12);
        }
        .nav-search i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 14px;
            color: rgba(244, 247, 249, 0.6);
            pointer-events: none;
        }
        .btn-login {
            height: 38px;
            padding: 0 18px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--c-white);
            font-size: 14px;
            font-weight: 500;
            background: transparent;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .btn-login:hover {
            border-color: var(--c-primary);
            background: rgba(200, 240, 75, 0.1);
            color: var(--c-primary);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 38px;
            padding: 0 22px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--c-primary), var(--c-primary-end));
            color: var(--c-bg-dark);
            font-size: 14px;
            font-weight: 700;
            transition: var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(77, 208, 126, 0.3);
        }
        .btn-primary:hover {
            transform: scale(1.02);
            box-shadow: 0 8px 24px rgba(77, 208, 126, 0.4);
            color: var(--c-bg-dark);
        }
        .btn-primary.large {
            height: 48px;
            padding: 0 32px;
            font-size: 16px;
            border-radius: var(--radius-md);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-md);
            border: 1.5px solid rgba(244, 247, 249, 0.5);
            color: var(--c-dark-text);
            font-size: 15px;
            font-weight: 500;
            background: transparent;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .btn-ghost:hover {
            border-color: var(--c-primary);
            background: rgba(200, 240, 75, 0.08);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 40px;
            padding: 0 22px;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--c-primary-end);
            color: var(--c-primary-end);
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .btn-outline:hover {
            background: rgba(77, 208, 126, 0.1);
            color: var(--c-primary-end);
            border-color: var(--c-primary-end);
        }
        .menu-icon {
            display: none;
            font-size: 24px;
            color: var(--c-white);
            background: transparent;
            padding: 6px;
            border-radius: 8px;
            transition: var(--transition-base);
        }
        .menu-icon:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        /* Mobile drawer menu */
        .mobile-menu {
            display: none;
            background: var(--c-white);
            padding: 20px 24px;
            box-shadow: 0 12px 40px rgba(17, 24, 28, 0.15);
        }
        .mobile-menu.active {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 0;
            font-size: 16px;
            font-weight: 500;
            color: var(--c-text);
            border-bottom: 1px solid var(--c-bg);
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu a.active {
            color: var(--c-primary-end);
        }
        /* Hero Section */
        .hero {
            background-color: var(--c-bg-dark);
            background-image: linear-gradient(135deg, rgba(14, 21, 24, 0.85), rgba(14, 21, 24, 0.65)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 140px 0 100px;
            position: relative;
            min-height: 680px;
            display: flex;
            align-items: center;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to bottom, transparent, rgba(246, 248, 250, 0.06));
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(200, 240, 75, 0.15);
            border: 1px solid rgba(200, 240, 75, 0.3);
            color: var(--c-primary);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 24px;
        }
        .hero-title {
            font-size: clamp(36px, 5vw, 56px);
            font-weight: 800;
            color: var(--c-white);
            line-height: 1.2;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--c-primary), var(--c-primary-end));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(244, 247, 249, 0.85);
            max-width: 560px;
            margin-bottom: 36px;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 40px;
        }
        .hero-stat-card {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            transition: var(--transition-base);
            height: 100%;
        }
        .hero-stat-card:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
        }
        .hero-stat-label {
            font-size: 13px;
            color: rgba(244, 247, 249, 0.7);
            margin-bottom: 8px;
            letter-spacing: 1px;
        }
        .hero-stat-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--c-primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .hero-stat-desc {
            font-size: 13px;
            color: rgba(244, 247, 249, 0.6);
            line-height: 1.5;
        }
        /* Section Common */
        .section {
            padding: 90px 0;
        }
        .section-light {
            background: var(--c-white);
        }
        .section-muted {
            background: var(--c-bg);
        }
        .section-head {
            margin-bottom: 50px;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--c-primary-end);
            background: rgba(77, 208, 126, 0.1);
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .section-title {
            font-size: clamp(28px, 3.6vw, 40px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--c-muted);
            max-width: 720px;
        }
        /* Feature Cards - asymmetric */
        .feature-card-main {
            background: var(--c-white);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .feature-card-main::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 6px;
            height: 100%;
            background: linear-gradient(135deg, var(--c-primary), var(--c-primary-end));
            border-radius: 0 6px 6px 0;
        }
        .feature-card-main:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card-sub {
            background: var(--c-white);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            height: 100%;
        }
        .feature-card-sub:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(77, 208, 126, 0.4);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }
        .feature-icon-green {
            background: linear-gradient(135deg, var(--c-primary), var(--c-primary-end));
            color: var(--c-bg-dark);
        }
        .feature-icon-accent {
            background: rgba(255, 123, 69, 0.12);
            color: var(--c-accent);
        }
        .feature-icon-blue {
            background: rgba(34, 197, 94, 0.12);
            color: var(--c-success);
        }
        .feature-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .feature-desc {
            font-size: 15px;
            color: var(--c-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .feature-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--c-primary-end);
            background: rgba(77, 208, 126, 0.1);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
        }
        .feature-tag i {
            font-size: 11px;
        }
        .feature-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 123, 69, 0.1);
            color: var(--c-accent);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            margin-right: 8px;
            margin-bottom: 6px;
        }
        /* Zig Zag Sections */
        .zigzag-item {
            margin-bottom: 80px;
        }
        .zigzag-item:last-child {
            margin-bottom: 0;
        }
        .zigzag-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            height: 100%;
            min-height: 320px;
        }
        .zigzag-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
            display: block;
        }
        .zigzag-media:hover img {
            transform: scale(1.03);
        }
        .zigzag-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 20px 0;
        }
        .zigzag-tag {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-primary-end);
            background: rgba(77, 208, 126, 0.1);
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
            align-self: flex-start;
        }
        .zigzag-title {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .zigzag-desc {
            font-size: 15px;
            color: var(--c-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .zigzag-list {
            margin-bottom: 24px;
        }
        .zigzag-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            line-height: 1.6;
            padding: 7px 0;
            color: var(--c-text);
        }
        .zigzag-list li i {
            color: var(--c-primary-end);
            margin-top: 5px;
            font-size: 14px;
            flex-shrink: 0;
        }
        .zigzag-stats {
            display: flex;
            gap: 32px;
            margin-top: 8px;
        }
        .zigzag-stat-item {
            text-align: left;
        }
        .zigzag-stat-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--c-primary-end);
            font-variant-numeric: tabular-nums;
        }
        .zigzag-stat-label {
            font-size: 13px;
            color: var(--c-muted);
            margin-top: 2px;
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            color: var(--c-primary-end);
            transition: var(--transition-base);
        }
        .text-link:hover {
            color: var(--c-accent);
            gap: 12px;
        }
        /* Social Proof */
        .social-proof {
            background: var(--c-bg-dark);
            padding: 90px 0;
        }
        .social-proof-label {
            font-size: 13px;
            color: var(--c-primary);
            letter-spacing: 2px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .social-proof-title {
            font-size: clamp(28px, 3.6vw, 38px);
            font-weight: 800;
            color: var(--c-white);
            margin-bottom: 50px;
            line-height: 1.36;
        }
        .stat-row {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 30px;
            margin-bottom: 50px;
        }
        .stat-item {
            flex: 1;
            min-width: 160px;
            padding: 20px 0;
            border-left: 1px solid rgba(255, 255, 255, 0.1);
            padding-left: 24px;
        }
        .stat-item:first-child {
            border-left: none;
            padding-left: 0;
        }
        .stat-number {
            font-size: 40px;
            font-weight: 800;
            color: var(--c-primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }
        .stat-number span {
            font-size: 20px;
            font-weight: 600;
            margin-left: 2px;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(244, 247, 249, 0.7);
            margin-top: 6px;
        }
        .partner-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 50px;
            opacity: 0.55;
            filter: grayscale(1);
        }
        .partner-row:hover {
            opacity: 1;
            filter: none;
            transition: var(--transition-base);
        }
        .partner-item {
            font-size: 18px;
            font-weight: 700;
            color: rgba(244, 247, 249, 0.8);
            letter-spacing: 1px;
            padding: 8px 16px;
        }
        .testimonial-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: var(--transition-base);
            height: 100%;
        }
        .testimonial-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .testimonial-stars {
            color: var(--c-warning);
            font-size: 14px;
            margin-bottom: 14px;
            letter-spacing: 2px;
        }
        .testimonial-text {
            font-size: 15px;
            color: rgba(244, 247, 249, 0.85);
            line-height: 1.7;
            margin-bottom: 20px;
            font-style: italic;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--c-primary), var(--c-primary-end));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--c-bg-dark);
            font-weight: 700;
        }
        .testimonial-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--c-white);
        }
        .testimonial-role {
            font-size: 13px;
            color: rgba(244, 247, 249, 0.6);
        }
        /* Posts / News */
        .post-card-featured {
            background: var(--c-white);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            height: 100%;
            margin-bottom: 20px;
        }
        .post-card-featured:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .post-card-featured .post-thumb-wrap {
            width: 45%;
            overflow: hidden;
            position: relative;
            min-height: 220px;
        }
        .post-card-featured .post-thumb {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            transition: transform 0.5s ease;
        }
        .post-card-featured:hover .post-thumb {
            transform: scale(1.05);
        }
        .post-card-featured .post-body {
            padding: 28px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .post-card-featured .post-title {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card-featured .post-summary {
            font-size: 15px;
            color: var(--c-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--c-muted);
        }
        .post-category {
            font-size: 12px;
            font-weight: 600;
            color: var(--c-primary-end);
            background: rgba(77, 208, 126, 0.1);
            padding: 3px 12px;
            border-radius: var(--radius-pill);
        }
        .post-card-list {
            display: flex;
            gap: 20px;
            background: var(--c-white);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-md);
            padding: 18px;
            margin-bottom: 14px;
            transition: var(--transition-base);
            height: calc(100% - 14px);
        }
        .post-card-list:hover {
            box-shadow: var(--shadow-card);
            transform: translateX(4px);
            border-color: rgba(77, 208, 126, 0.4);
        }
        .post-card-list .post-thumb-wrap {
            width: 160px;
            height: 110px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }
        .post-card-list .post-thumb {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .post-card-list .post-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
        }
        .post-card-list .post-title {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
            color: var(--c-text);
        }
        .post-card-list .post-summary {
            font-size: 14px;
            color: var(--c-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card-list .post-meta {
            gap: 12px;
        }
        .tab-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
        }
        .tab-item {
            font-size: 14px;
            font-weight: 500;
            color: var(--c-muted);
            background: var(--c-white);
            border: 1px solid var(--c-border);
            padding: 7px 18px;
            border-radius: var(--radius-pill);
            cursor: pointer;
            transition: var(--transition-base);
        }
        .tab-item:hover {
            border-color: var(--c-primary-end);
            color: var(--c-primary-end);
        }
        .tab-item.active {
            background: linear-gradient(135deg, var(--c-primary), var(--c-primary-end));
            color: var(--c-bg-dark);
            border-color: transparent;
            font-weight: 600;
        }
        .more-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-primary-end);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 24px;
            transition: var(--transition-base);
        }
        .more-link:hover {
            gap: 10px;
            color: var(--c-accent);
        }
        /* Empty state */
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            background: var(--c-white);
            border: 2px dashed var(--c-border);
            border-radius: var(--radius-lg);
            margin-bottom: 20px;
        }
        .empty-state i {
            font-size: 48px;
            color: var(--c-border);
            margin-bottom: 16px;
        }
        .empty-state p {
            font-size: 16px;
            color: var(--c-muted);
            margin-bottom: 16px;
        }
        .btn-refresh {
            font-size: 14px;
            color: var(--c-primary-end);
            background: rgba(77, 208, 126, 0.1);
            border: none;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            cursor: pointer;
            transition: var(--transition-base);
        }
        .btn-refresh:hover {
            background: rgba(77, 208, 126, 0.2);
        }
        /* FAQ */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            background: var(--c-white);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .accordion-item:hover {
            border-color: rgba(77, 208, 126, 0.3);
        }
        .accordion-item.is-active {
            border-color: rgba(77, 208, 126, 0.5);
            box-shadow: var(--shadow-card);
        }
        .accordion-item .accordion-title {
            font-size: 17px;
            font-weight: 600;
            padding: 22px 28px;
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            border-bottom: 1px solid transparent;
            position: relative;
            transition: var(--transition-base);
            background: var(--c-white);
            color: var(--c-text);
        }
        .accordion-item.is-active .accordion-title {
            color: var(--c-primary-end);
            border-bottom-color: var(--c-border);
        }
        .accordion-title::after {
            content: '+';
            font-size: 24px;
            font-weight: 300;
            margin-left: auto;
            color: var(--c-muted);
            transition: var(--transition-base);
        }
        .accordion-item.is-active .accordion-title::after {
            content: '−';
            color: var(--c-primary-end);
        }
        .accordion-content {
            padding: 0 28px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background: var(--c-white);
        }
        .accordion-item.is-active .accordion-content {
            max-height: 300px;
            padding: 20px 28px;
        }
        .accordion-content p {
            font-size: 15px;
            color: var(--c-muted);
            line-height: 1.8;
        }
        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, rgba(14, 21, 24, 0.95), rgba(14, 21, 24, 0.8)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-lg);
            padding: 70px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            margin: 90px 0;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(200, 240, 75, 0.15), transparent 70%);
            border-radius: 50%;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(77, 208, 126, 0.12), transparent 70%);
            border-radius: 50%;
        }
        .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-title {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            color: var(--c-white);
            margin-bottom: 16px;
        }
        .cta-desc {
            font-size: 17px;
            color: rgba(244, 247, 249, 0.8);
            margin-bottom: 36px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-link {
            font-size: 14px;
            color: rgba(244, 247, 249, 0.8);
            padding: 8px 16px;
            border-bottom: 1px solid transparent;
            transition: var(--transition-base);
        }
        .cta-link:hover {
            color: var(--c-primary);
            border-bottom-color: var(--c-primary);
        }
        .cta-links {
            margin-top: 24px;
            display: flex;
            gap: 20px;
            justify-content: center;
        }
        /* Footer */
        .footer {
            background: var(--c-bg-dark);
            padding-top: 70px;
            margin-top: 90px;
        }
        .footer-brand {
            margin-bottom: 20px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--c-primary), var(--c-primary-end));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-bg-dark);
            font-size: 18px;
        }
        .footer-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--c-white);
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(244, 247, 249, 0.6);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(244, 247, 249, 0.7);
            font-size: 14px;
            transition: var(--transition-base);
        }
        .footer-social a:hover {
            background: rgba(200, 240, 75, 0.2);
            color: var(--c-primary);
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--c-white);
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 3px;
            background: linear-gradient(135deg, var(--c-primary), var(--c-primary-end));
            border-radius: 3px;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(244, 247, 249, 0.6);
            transition: var(--transition-base);
        }
        .footer-links a:hover {
            color: var(--c-primary);
            padding-left: 4px;
        }
        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 14px;
            color: rgba(244, 247, 249, 0.6);
            margin-bottom: 14px;
        }
        .footer-contact i {
            color: var(--c-primary);
            margin-top: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            margin-top: 50px;
        }
        .footer-bottom-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .copy-text {
            font-size: 13px;
            color: rgba(244, 247, 249, 0.5);
        }
        .footer-legal {
            display: flex;
            gap: 20px;
        }
        .footer-legal a {
            font-size: 13px;
            color: rgba(244, 247, 249, 0.5);
        }
        .footer-legal a:hover {
            color: var(--c-primary);
        }
        /* Mobile sticky CTA */
        .mobile-sticky-cta {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--c-white);
            padding: 12px 20px;
            box-shadow: 0 -4px 24px rgba(17, 24, 28, 0.1);
            z-index: 90;
            border-radius: 16px 16px 0 0;
        }
        .mobile-sticky-cta .sticky-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .mobile-sticky-cta .sticky-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-text);
            white-space: nowrap;
        }
        .mobile-sticky-cta .btn-sticky {
            background: linear-gradient(135deg, var(--c-primary), var(--c-primary-end));
            color: var(--c-bg-dark);
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 14px;
            box-shadow: 0 4px 16px rgba(77, 208, 126, 0.3);
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .mobile-sticky-cta .btn-sticky:hover {
            transform: scale(1.03);
        }
        /* Responsive */
        @media screen and (max-width: 1024px) {
            .nav-channel {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .btn-login {
                display: none;
            }
            .menu-icon {
                display: block;
            }
            .nav-right {
                gap: 8px;
            }
            .hero {
                padding-top: 120px;
                min-height: 0;
            }
            .section {
                padding: 70px 0;
            }
            .cta-banner {
                margin: 70px 0;
            }
            .stat-item {
                min-width: 120px;
            }
        }
        @media screen and (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .site-header {
                padding: 12px 0;
            }
            .nav-logo-text {
                font-size: 18px;
            }
            .nav-logo-sub {
                display: none;
            }
            .btn-primary {
                height: 34px;
                padding: 0 14px;
                font-size: 13px;
            }
            .hero {
                padding-top: 100px;
                padding-bottom: 70px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .section {
                padding: 56px 0;
            }
            .post-card-featured {
                flex-direction: column;
            }
            .post-card-featured .post-thumb-wrap {
                width: 100%;
                min-height: 180px;
                position: relative;
            }
            .post-card-featured .post-thumb {
                position: absolute;
                top: 0;
                left: 0;
            }
            .post-card-featured .post-body {
                padding: 20px;
            }
            .post-card-list {
                flex-direction: column;
                padding: 16px;
            }
            .post-card-list .post-thumb-wrap {
                width: 100%;
                height: 160px;
            }
            .post-card-list .post-thumb {
                position: static;
            }
            .stat-row {
                gap: 20px;
            }
            .stat-item {
                min-width: 100%;
                padding-left: 0;
                border-left: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                padding-bottom: 16px;
            }
            .stat-item:last-child {
                border-bottom: none;
            }
            .zigzag-media {
                min-height: 240px;
            }
            .cta-banner {
                padding: 50px 24px;
                margin: 56px 0;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .cta-buttons .btn-primary,
            .cta-buttons .btn-ghost {
                width: 100%;
                justify-content: center;
            }
            .footer {
                margin-top: 60px;
            }
            .footer-bottom-inner {
                flex-direction: column;
                text-align: center;
            }
            .footer-legal {
                gap: 12px;
            }
            .mobile-sticky-cta {
                display: block;
                padding-bottom: calc(12px + env(safe-area-inset-bottom));
            }
            body {
                padding-bottom: 70px;
            }
        }
        @media screen and (min-width: 1024px) {
            .desktop-hidden {
                display: none !important;
            }
        }
        @media screen and (min-width: 641px) {
            .desktop-hidden,
            .mobile-menu {
                display: none !important;
            }
        }

/* roulang page: category1 */
:root {
            --c-bg: #F6F8FA;
            --c-bg-dark: #0E1518;
            --c-bg-dark-2: #121C20;
            --c-primary: #C8F04B;
            --c-primary-end: #4DD07E;
            --c-primary-grad: linear-gradient(135deg, #C8F04B 0%, #4DD07E 100%);
            --c-accent: #FF7B45;
            --c-text: #16181D;
            --c-muted: #6E757F;
            --c-border: #E5E9EF;
            --c-white: #FFFFFF;
            --c-on-dark: #F4F7F9;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 10px 30px rgba(17, 24, 28, .06);
            --shadow-hover: 0 18px 44px rgba(17, 24, 28, .12);
            --spacer-section: 88px;
            --spacer-section-sm: 48px;
            --font-base: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--c-text);
            background: var(--c-bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease;
        }

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

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

        input {
            font-family: inherit;
        }

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

        .section {
            padding: var(--spacer-section) 0;
        }

        .section-dark {
            background: var(--c-bg-dark);
            color: var(--c-on-dark);
        }

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

        .section-head .section-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(200, 240, 75, .14);
            color: #5A8A20;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .5px;
            margin-bottom: 16px;
        }

        .section-head h2 {
            font-size: clamp(26px, 3.6vw, 38px);
            font-weight: 800;
            line-height: 1.3;
            margin: 0 0 14px;
        }

        .section-head p {
            color: var(--c-muted);
            font-size: 16px;
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: var(--radius-sm);
            background: var(--c-primary-grad);
            color: #0E1518;
            font-weight: 700;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: transform .25s ease, box-shadow .25s ease, filter .25s ease;
            box-shadow: 0 8px 24px rgba(80, 200, 100, .25);
            text-align: center;
            line-height: 1.4;
        }

        .btn-primary:hover {
            transform: scale(1.02) translateY(-1px);
            filter: brightness(1.05);
            box-shadow: 0 12px 30px rgba(80, 200, 100, .35);
            color: #0E1518;
        }

        .btn-primary:active {
            transform: scale(.99);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, .6);
            color: var(--c-on-dark);
            font-weight: 600;
            font-size: 15px;
            background: transparent;
            transition: background .25s ease, border-color .25s ease, color .25s ease, transform .25s ease;
            line-height: 1.4;
        }

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

        .btn-dark-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            border: 2px solid var(--c-border);
            color: var(--c-text);
            font-weight: 600;
            font-size: 15px;
            background: transparent;
            transition: background .25s ease, border-color .25s ease, color .25s ease;
            line-height: 1.4;
        }

        .btn-dark-outline:hover {
            background: var(--c-bg);
            border-color: #B8C0CC;
            color: var(--c-text);
        }

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

        /* ===== Site Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: transparent;
            transition: background .35s ease, box-shadow .35s ease;
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, .96);
            box-shadow: 0 4px 20px rgba(17, 24, 28, .08);
        }

        .site-header.scrolled .nav-logo-text,
        .site-header.scrolled .nav-channel a,
        .site-header.scrolled .nav-search input {
            color: var(--c-text);
        }

        .site-header.scrolled .nav-channel a.active::after {
            background: var(--c-primary-grad);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

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

        .nav-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--c-primary-grad);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0E1518;
            font-size: 17px;
            box-shadow: 0 4px 12px rgba(80, 200, 100, .3);
        }

        .nav-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
            transition: color .3s ease;
            line-height: 1.2;
            display: block;
        }

        .nav-logo-sub {
            font-size: 11px;
            color: rgba(255, 255, 255, .55);
            letter-spacing: .4px;
            transition: color .3s ease;
            display: block;
        }

        .site-header.scrolled .nav-logo-sub {
            color: var(--c-muted);
        }

        .nav-channel {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-channel a {
            position: relative;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 600;
            color: rgba(255, 255, 255, .8);
            border-radius: var(--radius-pill);
            transition: color .3s ease, background .3s ease;
        }

        .nav-channel a::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: 2px;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            border-radius: 3px;
            background: var(--c-primary);
            transition: width .3s ease;
        }

        .nav-channel a:hover {
            color: #fff;
        }

        .nav-channel a.active {
            color: var(--c-primary);
            background: rgba(200, 240, 75, .08);
        }

        .nav-channel a.active::after {
            width: 22px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-search i {
            position: absolute;
            left: 13px;
            color: var(--c-muted);
            font-size: 14px;
            pointer-events: none;
        }

        .nav-search input {
            width: 180px;
            height: 40px;
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, .08);
            color: #fff;
            padding: 0 14px 0 38px;
            font-size: 14px;
            outline: none;
            transition: width .3s ease, border-color .3s ease, background .3s ease;
        }

        .nav-search input::placeholder {
            color: rgba(255, 255, 255, .5);
        }

        .site-header.scrolled .nav-search input {
            border-color: var(--c-border);
            background: var(--c-bg);
            color: var(--c-text);
        }

        .site-header.scrolled .nav-search input::placeholder {
            color: var(--c-muted);
        }

        .nav-search input:focus {
            width: 220px;
            border-color: var(--c-primary);
        }

        .btn-login {
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(255, 255, 255, .4);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            transition: background .25s ease, border-color .25s ease;
        }

        .btn-login:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
        }

        .site-header.scrolled .btn-login {
            border-color: var(--c-border);
            color: var(--c-text);
        }

        .site-header.scrolled .btn-login:hover {
            border-color: var(--c-primary);
            color: #5A8A20;
        }

        .nav-right .btn-primary {
            padding: 10px 22px;
            font-size: 14px;
        }

        .menu-icon {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, .3);
            color: #fff;
            font-size: 18px;
            align-items: center;
            justify-content: center;
        }

        .site-header.scrolled .menu-icon {
            border-color: var(--c-border);
            color: var(--c-text);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: var(--c-bg-dark) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: var(--c-on-dark);
            padding: 160px 0 88px;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(14, 21, 24, .92) 0%, rgba(14, 21, 24, .78) 45%, rgba(14, 21, 24, .4) 100%);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 18px;
            background: rgba(200, 240, 75, .12);
            border: 1px solid rgba(200, 240, 75, .3);
            color: var(--c-primary);
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .5px;
            margin-bottom: 22px;
        }

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

        .hero h1 {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.22;
            margin: 0 0 20px;
            max-width: 560px;
        }

        .hero h1 .highlight {
            background: var(--c-primary-grad);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-sub {
            font-size: 17px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .75);
            max-width: 520px;
            margin-bottom: 32px;
        }

        .hero-ctas {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .hero-trust {
            display: flex;
            align-items: center;
            gap: 20px;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }

        .hero-trust i {
            color: var(--c-primary);
            margin-right: 5px;
        }

        .hero-badges {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .data-badge {
            background: rgba(255, 255, 255, .07);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            transition: transform .3s ease, background .3s ease, border-color .3s ease;
        }

        .data-badge:hover {
            transform: translateY(-4px);
            background: rgba(255, 255, 255, .1);
            border-color: rgba(200, 240, 75, .35);
        }

        .data-badge-label {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 6px;
            letter-spacing: .5px;
        }

        .data-badge-value {
            font-size: 36px;
            font-weight: 800;
            color: var(--c-primary);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }

        .data-badge-value small {
            font-size: 16px;
            font-weight: 600;
            color: rgba(255, 255, 255, .65);
            margin-left: 4px;
        }

        .data-badge-note {
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
            margin-top: 6px;
        }

        /* ===== Features ===== */
        .feature-section {
            background: var(--c-bg);
            padding: var(--spacer-section) 0;
        }

        .feature-main-card {
            background: var(--c-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--c-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            padding: 28px;
            height: 100%;
            transition: transform .3s ease, box-shadow .3s ease;
        }

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

        .feature-main-card .feature-media {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 22px;
            position: relative;
        }

        .feature-main-card .feature-media img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .feature-main-card .feature-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(14, 21, 24, .35) 0%, transparent 60%);
            pointer-events: none;
        }

        .feature-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: var(--c-primary-grad);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0E1518;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 800;
            margin: 0 0 10px;
        }

        .feature-card p {
            color: var(--c-muted);
            font-size: 15px;
            line-height: 1.7;
            margin: 0 0 18px;
        }

        .feature-tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .feature-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            background: rgba(200, 240, 75, .12);
            color: #5A8A20;
            font-size: 13px;
            font-weight: 600;
        }

        .feature-mini-card {
            background: var(--c-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--c-border);
            box-shadow: var(--shadow-card);
            padding: 28px;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform .3s ease, box-shadow .3s ease;
        }

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

        .feature-mini-card .feature-icon {
            width: 44px;
            height: 44px;
            font-size: 17px;
            border-radius: var(--radius-sm);
        }

        .feature-mini-card h3 {
            font-size: 18px;
            font-weight: 800;
            margin: 0 0 10px;
        }

        .feature-mini-card p {
            color: var(--c-muted);
            font-size: 14px;
            line-height: 1.65;
            flex: 1;
            margin: 0 0 16px;
        }

        .feature-mini-card .feature-tag {
            align-self: flex-start;
            margin-top: auto;
        }

        /* ===== Stats Band ===== */
        .stats-band {
            background: var(--c-bg-dark);
            padding: 72px 0;
            color: var(--c-on-dark);
        }

        .stats-band-inner {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
        }

        .stat-item {
            padding: 20px;
        }

        .stat-number {
            font-size: 44px;
            font-weight: 800;
            color: var(--c-primary);
            line-height: 1.15;
            font-variant-numeric: tabular-nums;
            margin-bottom: 8px;
        }

        .stat-number span {
            font-size: 20px;
            font-weight: 600;
            color: rgba(255, 255, 255, .5);
            margin-left: 2px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            letter-spacing: .5px;
        }

        .stat-divider {
            border: none;
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin: 0;
        }

        /* ===== Scenarios ===== */
        .scenario-section {
            background: var(--c-bg);
            padding: var(--spacer-section) 0;
        }

        .scenario-block {
            padding: 40px 0;
        }

        .scenario-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .scenario-media img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .scenario-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14, 21, 24, .45) 0%, rgba(14, 21, 24, .05) 50%, rgba(200, 240, 75, .05) 100%);
            pointer-events: none;
            border-radius: var(--radius-lg);
        }

        .scenario-media:hover img {
            transform: scale(1.04);
        }

        .scenario-content {
            padding: 24px 0;
        }

        .scenario-kicker {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            background: rgba(255, 123, 69, .12);
            color: #D65A2E;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .scenario-content h3 {
            font-size: 26px;
            font-weight: 800;
            margin: 0 0 14px;
            line-height: 1.35;
        }

        .scenario-content > p {
            color: var(--c-muted);
            font-size: 15px;
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .scenario-list {
            margin-bottom: 24px;
        }

        .scenario-list li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 10px;
            font-size: 15px;
            line-height: 1.6;
            color: #3A4048;
        }

        .scenario-list li::before {
            content: '\f00c';
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 1px;
            color: var(--c-primary-end);
            font-size: 14px;
        }

        .scenario-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #3E7F3E;
            font-weight: 700;
            font-size: 15px;
            border-bottom: 2px solid rgba(78, 190, 120, .3);
            padding-bottom: 4px;
            transition: border-color .25s ease, color .25s ease;
        }

        .scenario-link:hover {
            color: #2E6B2E;
            border-color: var(--c-primary-end);
        }

        /* ===== Steps ===== */
        .steps-section {
            background: var(--c-bg-dark);
            padding: var(--spacer-section) 0;
            color: var(--c-on-dark);
        }

        .steps-section .section-head .section-tag {
            background: rgba(200, 240, 75, .1);
            color: var(--c-primary);
        }

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

        .steps-section .section-head p {
            color: rgba(255, 255, 255, .6);
        }

        .step-card {
            text-align: center;
            padding: 32px 24px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-lg);
            height: 100%;
            transition: transform .3s ease, border-color .3s ease, background .3s ease;
        }

        .step-card:hover {
            transform: translateY(-4px);
            border-color: rgba(200, 240, 75, .3);
            background: rgba(255, 255, 255, .06);
        }

        .step-num {
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: var(--c-primary-grad);
            color: #0E1518;
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            line-height: 1;
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
        }

        .step-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            line-height: 1.65;
            margin: 0;
        }

        .step-arrow {
            display: none;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--c-bg);
            padding: var(--spacer-section) 0;
        }

        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

        .accordion {
            background: var(--c-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--c-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .accordion-item {
            border-bottom: 1px solid var(--c-border);
            position: relative;
        }

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

        .accordion-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--c-primary-grad);
            opacity: 0;
            transition: opacity .25s ease;
            z-index: 1;
        }

        .accordion-item.is-active::before {
            opacity: 1;
        }

        .accordion-title {
            display: flex;
            align-items: center;
            padding: 20px 24px 20px 28px;
            font-size: 16px;
            font-weight: 700;
            color: var(--c-text);
            background: transparent;
            border: none;
            transition: color .25s ease;
            position: relative;
            line-height: 1.4;
        }

        .accordion-title:hover {
            color: #3E7F3E;
        }

        .accordion-title::after {
            content: '\f078';
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--c-muted);
            margin-left: auto;
            transition: transform .3s ease;
        }

        .accordion-item.is-active > .accordion-title::after {
            transform: rotate(180deg);
            color: var(--c-primary-end);
        }

        .accordion-content {
            padding: 0 28px 22px;
            color: var(--c-muted);
            font-size: 15px;
            line-height: 1.75;
        }

        .accordion-content p {
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: var(--spacer-section) 0 100px;
            background: var(--c-bg);
        }

        .cta-card {
            position: relative;
            background: var(--c-bg-dark) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            border-radius: 28px;
            padding: 68px 48px;
            text-align: center;
            overflow: hidden;
            color: var(--c-on-dark);
        }

        .cta-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(14, 21, 24, .9) 0%, rgba(14, 21, 24, .72) 100%);
        }

        .cta-glow {
            position: absolute;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 240, 75, .18) 0%, transparent 70%);
            top: -120px;
            right: -80px;
            pointer-events: none;
        }

        .cta-card .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-card h2 {
            font-size: clamp(26px, 3.4vw, 36px);
            font-weight: 800;
            margin: 0 0 14px;
        }

        .cta-card p {
            font-size: 16px;
            color: rgba(255, 255, 255, .7);
            line-height: 1.7;
            margin: 0 0 30px;
        }

        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-secondary-links {
            margin-top: 26px;
            display: flex;
            justify-content: center;
            gap: 22px;
            font-size: 14px;
        }

        .cta-secondary-links a {
            color: rgba(255, 255, 255, .55);
            border-bottom: 1px solid rgba(255, 255, 255, .2);
            padding-bottom: 2px;
            transition: color .25s ease, border-color .25s ease;
        }

        .cta-secondary-links a:hover {
            color: var(--c-primary);
            border-color: var(--c-primary);
        }

        /* ===== Divider ===== */
        .divider {
            border: none;
            border-top: 1px solid var(--c-border);
            margin: 0;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--c-bg-dark);
            color: rgba(255, 255, 255, .6);
            padding-top: 72px;
            font-size: 14px;
        }

        .footer-brand {
            margin-bottom: 20px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--c-primary-grad);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0E1518;
            font-size: 16px;
        }

        .footer-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
        }

        .footer-desc {
            line-height: 1.7;
            font-size: 14px;
            color: rgba(255, 255, 255, .5);
            margin-bottom: 22px;
            max-width: 340px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, .6);
            transition: background .25s ease, color .25s ease, transform .25s ease;
        }

        .footer-social a:hover {
            background: var(--c-primary-grad);
            color: #0E1518;
            transform: translateY(-2px);
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: .5px;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .5);
            transition: color .25s ease;
        }

        .footer-links a:hover {
            color: var(--c-primary);
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
            color: rgba(255, 255, 255, .5);
            line-height: 1.5;
        }

        .footer-contact li i {
            color: var(--c-primary);
            margin-top: 4px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 56px;
        }

        .footer-bottom-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            flex-wrap: wrap;
            gap: 12px;
        }

        .copy-text {
            color: rgba(255, 255, 255, .4);
            font-size: 13px;
        }

        .footer-legal {
            display: flex;
            gap: 20px;
        }

        .footer-legal a {
            color: rgba(255, 255, 255, .4);
            font-size: 13px;
        }

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

        /* ===== Mobile & Floating CTA ===== */
        .float-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            width: 300px;
            background: var(--c-white);
            border-radius: var(--radius-lg);
            box-shadow: 0 16px 40px rgba(17, 24, 28, .16);
            border: 1px solid var(--c-border);
            padding: 22px;
            z-index: 90;
            display: block;
            transition: transform .3s ease, opacity .3s ease;
        }

        .float-cta p {
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--c-text);
        }

        .float-cta span {
            font-size: 13px;
            color: var(--c-muted);
            display: block;
            margin-bottom: 14px;
        }

        .float-cta .btn-primary {
            width: 100%;
            padding: 11px 20px;
            font-size: 14px;
        }

        .float-close {
            position: absolute;
            top: 10px;
            right: 12px;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--c-bg);
            color: var(--c-muted);
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background .25s ease, color .25s ease;
        }

        .float-close:hover {
            background: var(--c-bg-dark);
            color: #fff;
        }

        .mobile-cta-bar {
            display: none;
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 95;
            background: var(--c-white);
            border-top: 1px solid var(--c-border);
            padding: 12px 20px calc(12px + env(safe-area-inset-bottom));
            align-items: center;
            gap: 12px;
            box-shadow: 0 -4px 16px rgba(17, 24, 28, .06);
        }

        .mobile-cta-bar .btn-primary {
            flex: 1;
            padding: 12px 20px;
        }

        /* ===== Mobile Nav Drawer ===== */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: var(--c-white);
            padding: 20px;
            box-shadow: 0 12px 30px rgba(17, 24, 28, .12);
            z-index: 99;
            border-bottom: 1px solid var(--c-border);
        }

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

        .mobile-drawer a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            color: var(--c-text);
            font-size: 15px;
            margin-bottom: 4px;
        }

        .mobile-drawer a.active {
            background: rgba(200, 240, 75, .15);
            color: #4A7A18;
        }

        .mobile-drawer a:hover {
            background: var(--c-bg);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .nav-search {
                display: none;
            }

            .nav-channel a {
                padding: 8px 14px;
                font-size: 14px;
            }

            .stats-band-inner {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }

            .scenario-media img {
                height: 260px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacer-section: 56px;
            }

            .header-inner {
                height: 64px;
            }

            .nav-channel {
                display: none;
            }

            .nav-right .btn-login {
                display: none;
            }

            .menu-icon {
                display: flex;
            }

            .nav-right .btn-primary {
                padding: 9px 18px;
                font-size: 13px;
            }

            .hero {
                padding: 120px 0 56px;
            }

            .hero h1 {
                font-size: 30px;
            }

            .hero-sub {
                font-size: 16px;
            }

            .hero-badges {
                margin-top: 36px;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .data-badge {
                flex: 1;
                min-width: 150px;
                padding: 20px;
            }

            .data-badge-value {
                font-size: 28px;
            }

            .section-head {
                margin-bottom: 36px;
            }

            .scenario-block {
                padding: 20px 0;
            }

            .scenario-media img {
                height: 220px;
            }

            .scenario-content {
                padding: 20px 0 0;
            }

            .step-card {
                margin-bottom: 16px;
            }

            .cta-card {
                padding: 48px 24px;
                border-radius: 20px;
            }

            .float-cta {
                display: none;
            }

            .mobile-cta-bar {
                display: flex;
            }

            body {
                padding-bottom: 64px;
            }

            .footer {
                padding-top: 48px;
            }

            .footer-bottom-inner {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

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

            .hero-ctas .btn-primary,
            .hero-ctas .btn-outline {
                width: 100%;
            }

            .hero-trust {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .stats-band-inner {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .stat-number {
                font-size: 32px;
            }

            .feature-main-card {
                padding: 20px;
            }

            .feature-mini-card {
                padding: 20px;
            }

            .cta-secondary-links {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }

            .footer-bottom-inner {
                padding: 16px 0;
            }

            .mobile-cta-bar .btn-primary {
                font-size: 14px;
            }
        }

/* roulang page: article */
:root {
    --c-bg: #F6F8FA;
    --c-bg-dark: #0E1518;
    --c-primary: #C8F04B;
    --c-primary-end: #4DD07E;
    --c-accent: #FF7B45;
    --c-text: #16181D;
    --c-muted: #6E757F;
    --c-border: #E5E9EF;
    --c-white: #FFFFFF;
    --rad-lg: 20px;
    --rad-md: 14px;
    --rad-sm: 10px;
    --shadow-sm: 0 6px 18px rgba(17,24,28,.06);
    --shadow-lg: 0 18px 44px rgba(17,24,28,.12);
    --grad-main: linear-gradient(135deg, #C8F04B 0%, #4DD07E 100%);
    --font-main: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.7;
    color: var(--c-text);
    background: var(--c-bg);
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color .2s ease; }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; font-size: 100%; line-height: inherit; }
input:focus, button:focus, a:focus-visible { outline: 2px solid rgba(200,240,75,.8); outline-offset: 2px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.grid-padding-x > .cell { padding-left: 16px; padding-right: 16px; }
.site-header {
    position: absolute;
    top: 0; left: 0; right: 0;
    z-index: 100;
    transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
    border-bottom: 1px solid transparent;
}
.site-header-article {
    color: #fff;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 74px;
    gap: 16px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.nav-logo-icon {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: var(--grad-main);
    color: #0E1518;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    box-shadow: 0 4px 12px rgba(200,240,75,.3);
}
.nav-logo-text {
    display: block;
    font-size: 18px;
    font-weight: 800;
    letter-spacing: .5px;
    line-height: 1.2;
    color: var(--c-white);
}
.nav-logo-sub {
    display: block;
    font-size: 11px;
    letter-spacing: .2px;
    color: rgba(255,255,255,.6);
    line-height: 1.2;
}
.site-header.scrolled .nav-logo-sub { color: var(--c-muted); }
.nav-channel {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: 8px;
}
.nav-channel a {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    color: rgba(255,255,255,.85);
    transition: background .2s ease, color .2s ease;
    white-space: nowrap;
}
.nav-channel a:hover {
    background: rgba(255,255,255,.12);
    color: #fff;
}
.nav-channel a.active {
    background: rgba(200,240,75,.16);
    color: var(--c-primary);
    font-weight: 700;
}
.site-header.scrolled .nav-channel a { color: var(--c-text); }
.site-header.scrolled .nav-channel a:hover { background: rgba(14,21,24,.06); }
.site-header.scrolled .nav-channel a.active { background: rgba(200,240,75,.2); color: #1c2a1a; }
.nav-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.nav-search {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,.14);
    border: 1px solid rgba(255,255,255,.28);
    border-radius: 999px;
    padding: 7px 14px;
    width: 190px;
    transition: width .25s ease, border-color .25s ease, background .25s ease;
}
.nav-search:focus-within {
    width: 220px;
    border-color: var(--c-primary);
    background: rgba(255,255,255,.2);
}
.nav-search i { font-size: 13px; color: rgba(255,255,255,.7); }
.nav-search input {
    border: none;
    background: transparent;
    outline: none;
    color: #fff;
    width: 100%;
    font-size: 14px;
}
.nav-search input::placeholder { color: rgba(255,255,255,.55); }
.site-header.scrolled .nav-search { background: #f3f5f8; border-color: var(--c-border); }
.site-header.scrolled .nav-search i { color: var(--c-muted); }
.site-header.scrolled .nav-search input { color: var(--c-text); }
.site-header.scrolled .nav-search input::placeholder { color: var(--c-muted); }
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--grad-main);
    color: #0E1518;
    font-weight: 800;
    font-size: 15px;
    border: none;
    border-radius: 10px;
    padding: 10px 22px;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
    box-shadow: 0 6px 16px rgba(200,240,75,.25);
    line-height: 1.4;
}
.btn-primary:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 24px rgba(200,240,75,.35);
    filter: brightness(1.04);
}
.btn-primary.btn-block { width: 100%; }
.btn-primary.btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 8px; }
.btn-primary.btn-lg { padding: 14px 32px; font-size: 16px; border-radius: 12px; }
.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: transparent;
    border: 1px solid var(--c-border);
    border-radius: 10px;
    padding: 10px 22px;
    font-weight: 700;
    font-size: 15px;
    color: var(--c-text);
    transition: background .2s ease, border-color .2s ease, transform .2s ease;
    cursor: pointer;
}
.btn-ghost:hover { background: rgba(14,21,24,.04); border-color: var(--c-primary-end); transform: translateY(-1px); }
.btn-ghost-light { border-color: rgba(255,255,255,.5); color: #fff; }
.btn-ghost-light:hover { background: rgba(255,255,255,.1); border-color: #fff; color: #fff; }
.btn-login {
    background: transparent;
    border: 1px solid rgba(255,255,255,.4);
    color: rgba(255,255,255,.9);
    border-radius: 10px;
    padding: 9px 18px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s ease, border-color .2s ease, color .2s ease;
}
.btn-login:hover { background: rgba(255,255,255,.1); border-color: #fff; color: #fff; }
.site-header.scrolled .btn-login { border-color: var(--c-border); color: var(--c-text); }
.site-header.scrolled .btn-login:hover { background: var(--c-bg); border-color: var(--c-primary-end); }
.menu-icon {
    width: 42px; height: 42px;
    border-radius: 10px;
    background: transparent;
    border: 1px solid rgba(255,255,255,.35);
    color: #fff;
    font-size: 18px;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background .2s ease;
}
.menu-icon:hover { background: rgba(255,255,255,.1); }
.site-header.scrolled .menu-icon { border-color: var(--c-border); color: var(--c-text); }
.mobile-menu {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: #fff;
    padding: 16px 20px;
    border-top: 1px solid var(--c-border);
    box-shadow: 0 20px 36px rgba(17,24,28,.12);
}
.mobile-menu.is-open { display: block; }
.mobile-menu a {
    display: block;
    padding: 12px 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--c-text);
    border-bottom: 1px solid #f0f2f5;
}
.mobile-menu a:last-child { border-bottom: none; }
.article-banner {
    position: relative;
    background: url('/assets/images/backpic/back-1.png') center 30% / cover no-repeat var(--c-bg-dark);
    padding: 128px 0 52px;
    color: #fff;
}
.article-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(14,21,24,.6) 0%, rgba(14,21,24,.78) 100%);
}
.article-banner .container { position: relative; z-index: 2; }
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,.65);
}
.breadcrumb a { color: rgba(255,255,255,.8); transition: color .2s ease; }
.breadcrumb a:hover { color: var(--c-primary); }
.breadcrumb i { font-size: 10px; color: rgba(255,255,255,.4); }
.breadcrumb span { color: rgba(255,255,255,.9); max-width: 480px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.article-main {
    margin-top: -40px;
    padding-bottom: 64px;
}
.article-primary { margin-bottom: 32px; }
.article-card {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--rad-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px;
    transition: box-shadow .3s ease;
}
.article-topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.article-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(200,240,75,.2);
    color: #32570f;
    font-size: 13px;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 999px;
}
.article-date-mobile { font-size: 13px; color: var(--c-muted); }
.article-title {
    font-size: clamp(26px, 3.2vw, 38px);
    font-weight: 800;
    line-height: 1.35;
    margin: 0 0 16px;
    color: var(--c-text);
    letter-spacing: -.2px;
}
.article-summary {
    font-size: 16px;
    color: var(--c-muted);
    line-height: 1.75;
    margin: 0 0 18px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
    font-size: 13px;
    color: var(--c-muted);
    padding-bottom: 20px;
    border-bottom: 1px solid #f0f2f5;
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--c-primary-end); }
.article-divider { height: 1px; background: #f0f2f5; margin: 20px 0 32px; }
.article-body {
    font-size: 17px;
    line-height: 1.8;
    color: #2a2d33;
    word-break: break-word;
}
.article-body p { margin: 0 0 1.3em; }
.article-body h2 {
    font-size: 24px;
    font-weight: 800;
    margin: 1.6em 0 .7em;
    color: var(--c-text);
    padding-left: 14px;
    border-left: 4px solid var(--c-primary-end);
    line-height: 1.4;
}
.article-body h3 {
    font-size: 19px;
    font-weight: 700;
    margin: 1.4em 0 .6em;
    color: var(--c-text);
}
.article-body img {
    border-radius: 16px;
    margin: 1.4em 0;
    object-fit: cover;
    max-height: 560px;
}
.article-body blockquote {
    margin: 1.4em 0;
    padding: 18px 22px;
    background: #f5f7f9;
    border-left: 4px solid var(--c-primary-end);
    border-radius: 0 12px 12px 0;
    color: #4a5058;
    font-style: normal;
}
.article-body ul, .article-body ol { margin: 0 0 1.3em 1.2em; padding-left: .4em; }
.article-body li { margin-bottom: .5em; }
.article-body ul li::marker { color: var(--c-primary-end); }
.article-body ol li::marker { color: var(--c-primary-end); font-weight: 700; }
.article-body a { color: #1a8f4a; font-weight: 600; border-bottom: 1px solid rgba(26,143,74,.3); }
.article-body a:hover { color: #0f6b35; border-bottom-color: #0f6b35; }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.4em 0; font-size: 15px; }
.article-body th, .article-body td { border: 1px solid #e7eaf0; padding: 10px 14px; text-align: left; }
.article-body th { background: #f8fafb; font-weight: 700; }
.article-body hr { border: none; border-top: 1px solid #e7eaf0; margin: 2em 0; }
.article-empty {
    text-align: center;
    padding: 70px 20px;
}
.article-empty i {
    font-size: 48px;
    color: #c3cad4;
    margin-bottom: 18px;
}
.article-empty h2 { font-size: 24px; font-weight: 800; margin: 0 0 8px; }
.article-empty p { color: var(--c-muted); margin: 0 0 24px; }
.article-page-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 40px;
    border-top: 1px solid #f0f2f5;
    padding-top: 28px;
}
.page-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: #f7f9fb;
    border: 1px solid var(--c-border);
    border-radius: 14px;
    padding: 14px 18px;
    font-size: 14px;
    font-weight: 700;
    color: var(--c-text);
    transition: border-color .2s ease, background .2s ease, transform .2s ease;
    max-width: 48%;
}
.page-nav-btn small {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--c-muted);
    margin-bottom: 2px;
}
.page-nav-btn:hover {
    border-color: var(--c-primary-end);
    background: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}
.page-nav-next { text-align: right; }
.related-section { margin-top: 48px; }
.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 16px;
}
.section-head h2 {
    font-size: clamp(24px, 2.6vw, 30px);
    font-weight: 800;
    margin: 0;
    color: var(--c-text);
}
.section-more {
    font-size: 14px;
    font-weight: 700;
    color: var(--c-muted);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color .2s ease, gap .2s ease;
}
.section-more:hover { color: var(--c-primary-end); gap: 10px; }
.post-card {
    display: block;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--rad-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all .3s ease;
    height: 100%;
}
.post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(200,240,75,.45);
}
.post-thumb { aspect-ratio: 16/9; overflow: hidden; background: #eef1f4; }
.post-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.post-card:hover .post-thumb img { transform: scale(1.04); }
.post-card-body { padding: 18px 20px 20px; }
.post-title {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.5;
    margin: 0 0 10px;
    color: var(--c-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 48px;
}
.post-meta { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--c-muted); }
.post-tag {
    background: rgba(200,240,75,.2);
    color: #32570f;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}
.article-side { margin-bottom: 32px; }
.side-card {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--rad-lg);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    margin-bottom: 24px;
}
.side-logo {
    width: 48px; height: 48px;
    border-radius: 14px;
    background: var(--grad-main);
    color: #0E1518;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 16px;
    box-shadow: 0 6px 16px rgba(200,240,75,.28);
}
.side-title {
    font-size: 18px;
    font-weight: 800;
    color: var(--c-text);
    margin: 0 0 16px;
    padding-bottom: 12px;
    position: relative;
}
.side-title::after {
    content: '';
    position: absolute;
    left: 0; bottom: 0;
    width: 36px; height: 3px;
    border-radius: 3px;
    background: var(--grad-main);
}
.side-card p { color: var(--c-muted); font-size: 14px; margin: 0 0 16px; line-height: 1.7; }
.side-list { list-style: none; margin: 0; padding: 0; }
.side-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid #f0f2f5;
}
.side-list li:last-child { border-bottom: none; padding-bottom: 0; }
.side-icon {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: rgba(200,240,75,.2);
    color: #32570f;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    flex-shrink: 0;
}
.side-list strong { display: block; font-size: 14px; font-weight: 700; color: var(--c-text); margin-bottom: 2px; }
.side-list p { margin: 0; font-size: 13px; color: var(--c-muted); line-height: 1.5; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud a {
    display: inline-flex;
    align-items: center;
    padding: 5px 13px;
    background: #f4f6f8;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    color: var(--c-muted);
    transition: all .2s ease;
}
.tag-cloud a:hover {
    background: rgba(200,240,75,.2);
    border-color: rgba(200,240,75,.5);
    color: #32570f;
}
.side-cta {
    background: var(--c-bg-dark);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.side-cta::before {
    content: '';
    position: absolute;
    width: 180px; height: 180px;
    border-radius: 50%;
    background: rgba(200,240,75,.16);
    top: -60px; right: -60px;
}
.side-cta .side-title { color: #fff; }
.side-cta .side-title::after { background: var(--grad-main); }
.side-cta p { color: rgba(255,255,255,.7); }
.side-cta-badge {
    display: inline-block;
    background: rgba(200,240,75,.15);
    border: 1px solid rgba(200,240,75,.4);
    color: var(--c-primary);
    font-size: 12px;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 999px;
    margin-bottom: 12px;
}
.side-cta .btn-primary { margin-top: 4px; }
.bottom-cta-section { padding: 0 0 72px; }
.bottom-cta {
    background: var(--c-bg-dark);
    border-radius: 24px;
    padding: 56px 48px;
    position: relative;
    overflow: hidden;
    text-align: center;
    color: #fff;
}
.bottom-cta::before {
    content: '';
    position: absolute;
    width: 360px; height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(200,240,75,.2), transparent 70%);
    top: -120px; right: -60px;
    pointer-events: none;
}
.bottom-cta::after {
    content: '';
    position: absolute;
    width: 300px; height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(77,208,126,.14), transparent 70%);
    bottom: -120px; left: -50px;
    pointer-events: none;
}
.bottom-cta h2 {
    font-size: clamp(24px, 3vw, 34px);
    font-weight: 800;
    margin: 0 0 12px;
    position: relative;
    z-index: 2;
}
.bottom-cta p {
    font-size: 16px;
    color: rgba(255,255,255,.72);
    margin: 0 auto 30px;
    max-width: 600px;
    position: relative;
    z-index: 2;
}
.bottom-cta-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}
.footer {
    background: var(--c-bg-dark);
    color: rgba(255,255,255,.75);
    padding: 72px 0 0;
}
.footer .grid-x { row-gap: 32px; }
.footer-brand { padding-bottom: 16px; }
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.footer-logo-icon {
    width: 38px; height: 38px;
    border-radius: 10px;
    background: var(--grad-main);
    color: #0E1518;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
}
.footer-logo-text { font-size: 20px; font-weight: 800; color: #fff; }
.footer-desc { font-size: 14px; line-height: 1.75; margin: 0 0 20px; color: rgba(255,255,255,.6); max-width: 330px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.1);
    color: rgba(255,255,255,.7);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: all .2s ease;
}
.footer-social a:hover { background: rgba(200,240,75,.2); color: var(--c-primary); border-color: rgba(200,240,75,.4); transform: translateY(-2px); }
.footer-title {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 18px;
    letter-spacing: .3px;
}
.footer-links, .footer-contact {
    list-style: none;
    margin: 0; padding: 0;
}
.footer-links li, .footer-contact li { margin-bottom: 12px; }
.footer-links a {
    font-size: 14px;
    color: rgba(255,255,255,.6);
    transition: color .2s ease, padding-left .2s ease;
}
.footer-links a:hover { color: var(--c-primary); padding-left: 4px; }
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255,255,255,.6);
}
.footer-contact i { color: var(--c-primary-end); width: 16px; font-size: 13px; }
.footer-bottom {
    margin-top: 56px;
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 20px 0;
}
.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.copy-text { font-size: 13px; color: rgba(255,255,255,.45); }
.footer-legal { display: flex; align-items: center; gap: 20px; }
.footer-legal a { font-size: 13px; color: rgba(255,255,255,.45); transition: color .2s ease; }
.footer-legal a:hover { color: var(--c-primary); }
.sticky-cta-wrap {
    position: fixed;
    bottom: 24px; right: 24px;
    z-index: 99;
}
.sticky-cta-desktop { display: block; }
.sticky-cta-mobile { display: none; }
.sticky-cta-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(17,24,28,.2);
    padding: 20px;
    width: 280px;
    border: 1px solid var(--c-border);
    position: relative;
}
.sticky-cta-card::before {
    content: '';
    width: 44px; height: 3px;
    border-radius: 3px;
    background: var(--grad-main);
    position: absolute;
    top: 0; left: 20px;
}
.sticky-cta-title { display: block; font-size: 15px; font-weight: 800; color: var(--c-text); margin-bottom: 4px; }
.sticky-cta-desc { display: block; font-size: 13px; color: var(--c-muted); line-height: 1.6; margin-bottom: 14px; }
.sticky-cta-close {
    position: absolute;
    top: 12px; right: 12px;
    width: 26px; height: 26px;
    border-radius: 50%;
    border: none;
    background: #f0f2f5;
    color: var(--c-muted);
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s ease, color .2s ease;
}
.sticky-cta-close:hover { background: #e3e6ea; color: var(--c-text); }
.sticky-cta-mobile {
    background: #fff;
    border-top: 1px solid var(--c-border);
    box-shadow: 0 -6px 20px rgba(17,24,28,.08);
}
@media (max-width: 1023px) {
    .nav-channel, .nav-search { display: none; }
    .menu-icon { display: inline-flex; }
    .header-inner { height: 64px; }
    .article-banner { padding: 110px 0 40px; }
    .article-main { margin-top: -24px; }
    .side-card { margin-bottom: 20px; }
}
@media (max-width: 639px) {
    .container { padding: 0 16px; }
    .header-inner { gap: 8px; }
    .nav-logo-text { font-size: 16px; }
    .nav-logo-sub { display: none; }
    .nav-logo-icon { width: 32px; height: 32px; font-size: 14px; border-radius: 8px; }
    .btn-login { display: none; }
    .btn-primary { padding: 9px 16px; font-size: 14px; }
    .article-card { padding: 24px 18px; border-radius: 16px; }
    .article-title { font-size: 24px; }
    .article-summary { font-size: 15px; }
    .article-meta { gap: 12px; font-size: 12px; }
    .article-body { font-size: 16px; }
    .article-body h2 { font-size: 20px; }
    .article-body blockquote { padding: 14px 16px; }
    .article-page-nav { flex-direction: column; align-items: stretch; }
    .page-nav-btn { max-width: 100%; justify-content: space-between; }
    .related-section { margin-top: 36px; }
    .bottom-cta { padding: 40px 24px; border-radius: 18px; }
    .bottom-cta-actions { flex-direction: column; width: 100%; }
    .bottom-cta-actions .btn-primary, .bottom-cta-actions .btn-ghost { width: 100%; }
    .footer { padding-top: 56px; }
    .footer-bottom-inner { flex-direction: column; text-align: center; }
    .footer-legal { gap: 14px; flex-wrap: wrap; justify-content: center; }
    .sticky-cta-wrap {
        left: 0; right: 0; bottom: 0;
        padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
        background: rgba(255,255,255,.96);
        backdrop-filter: blur(8px);
        box-shadow: 0 -4px 20px rgba(17,24,28,.08);
    }
    .sticky-cta-desktop { display: none; }
    .sticky-cta-mobile { display: flex; align-items: center; justify-content: space-between; gap: 12px; border: none; box-shadow: none; background: transparent; }
    .sticky-cta-text { font-size: 14px; font-weight: 800; color: var(--c-text); }
    .sticky-cta-close { position: static; width: 30px; height: 30px; background: transparent; border: 1px solid var(--c-border); }
}
@media (min-width: 1024px) {
    .sticky-cta-desktop { display: block; }
    .sticky-cta-mobile { display: none; }
    .menu-icon { display: none; }
    .mobile-menu { display: none !important; }
}