/* roulang page: index */
:root {
            --color-primary: #4A2C8A;
            --color-primary-2: #7B4DE0;
            --color-accent: #F59E0B;
            --color-accent-2: #06B6D4;
            --color-dark: #181226;
            --color-bg: #F8F6FC;
            --color-surface: #FFFFFF;
            --color-text: #2B2338;
            --color-text-2: #6E647F;
            --color-border: #E7E0F0;
            --radius-card: 20px;
            --radius-large: 24px;
            --radius-small: 12px;
            --shadow-card: 0 2px 8px rgba(74, 44, 138, 0.06), 0 8px 24px rgba(74, 44, 138, 0.04);
            --shadow-hover: 0 12px 32px rgba(74, 44, 138, 0.14), 0 2px 8px rgba(74, 44, 138, 0.08);
            --shadow-hero: 0 8px 32px rgba(74, 44, 138, 0.24);
            --gradient-primary: linear-gradient(135deg, #4A2C8A 0%, #7B4DE0 55%, #F59E0B 150%);
            --gradient-cta: linear-gradient(135deg, #F59E0B, #F59E0B 60%, #E97E0A);
            --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-en: Inter, "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-cn);
            font-size: 17px;
            line-height: 1.85;
            color: var(--color-text);
            background: var(--color-bg);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }
        button,
        input {
            font: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: 96px 0;
            position: relative;
        }
        .section-head {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-head h2 {
            font-size: clamp(26px, 4vw, 38px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-dark);
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--color-text-2);
            max-width: 640px;
            margin: 0 auto;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 38px;
            border-radius: 999px;
            font-size: 16px;
            font-weight: 600;
            line-height: 1.2;
            cursor: pointer;
            transition: all .25s ease;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--gradient-cta);
            color: #fff;
            border: none;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.28);
        }
        .btn-primary:hover {
            filter: brightness(1.08);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--color-primary-2);
            color: var(--color-primary-2);
        }
        .btn-outline:hover {
            background: var(--color-primary-2);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: scale(0.98);
        }
        .btn-white {
            background: #fff;
            color: var(--color-primary);
            box-shadow: 0 4px 18px rgba(255, 255, 255, 0.2);
        }
        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 255, 255, 0.3);
            color: var(--color-primary);
        }
        .btn:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }
        .tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(6, 182, 212, 0.12);
            color: #0E7A8A;
        }
        .data-badge {
            background: var(--color-surface);
            border-radius: var(--radius-large);
            padding: 20px 24px;
            box-shadow: var(--shadow-hero);
            display: inline-flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 4px;
            position: relative;
            border: 1px solid rgba(255, 255, 255, 0.4);
        }
        .data-badge::after {
            content: '';
            position: absolute;
            top: 12px;
            right: 12px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
        }
        .data-badge .num {
            font-family: var(--font-en);
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 800;
            line-height: 1.1;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-2));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .data-badge .num.orange {
            background: linear-gradient(135deg, var(--color-accent), #E97E0A);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .data-badge .label {
            font-size: 14px;
            color: var(--color-text-2);
            font-weight: 500;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 80px;
            z-index: 1000;
            transition: background .35s ease, box-shadow .35s ease, height .3s ease;
            background: transparent;
        }
        .site-header.scrolled {
            background: rgba(74, 44, 138, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 4px 24px rgba(24, 18, 38, 0.2);
            height: 70px;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--gradient-primary);
            position: relative;
            overflow: hidden;
            flex-shrink: 0;
        }
        .logo-mark::before {
            content: '';
            position: absolute;
            width: 18px;
            height: 18px;
            border: 3px solid rgba(255, 255, 255, 0.85);
            border-radius: 6px;
            top: 6px;
            left: 6px;
            transform: rotate(20deg);
        }
        .logo-text {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            font-family: var(--font-cn);
        }
        .logo-text .logo-sub {
            color: var(--color-accent);
            font-weight: 800;
        }
        .main-nav {
            display: flex;
            align-items: center;
        }
        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .main-nav a {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.88);
            font-weight: 500;
            padding: 8px 2px;
            position: relative;
            transition: color .3s ease;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
            transition: width .3s ease;
        }
        .main-nav a:hover {
            color: #fff;
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .main-nav a.active {
            color: #fff;
        }
        .nav-cta {
            margin-left: 24px;
            padding: 10px 24px;
            font-size: 15px;
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-shrink: 0;
        }
        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #fff;
            margin: 5px 0;
            border-radius: 2px;
            transition: all .3s ease;
        }
        .hero {
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: var(--color-dark);
            padding: 0;
            overflow: hidden;
            position: relative;
            z-index: 1;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: -2;
            background-size: cover;
            background-position: center;
            opacity: 0.3;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: -1;
            background: radial-gradient(ellipse at 15% 30%, rgba(74, 44, 138, 0.75) 0%, transparent 50%), radial-gradient(ellipse at 85% 80%, rgba(245, 158, 11, 0.35) 0%, transparent 45%), linear-gradient(135deg, #181226 0%, #2A1A4A 60%, #4A2C8A 100%);
        }
        .hero-container {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 64px;
            align-items: center;
            width: 100%;
            padding-top: 120px;
            padding-bottom: 40px;
        }
        .hero-content {
            max-width: 640px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 13px;
            color: #fff;
            font-weight: 500;
            margin-bottom: 28px;
            backdrop-filter: blur(6px);
        }
        .hero-badge i {
            color: var(--color-accent);
        }
        .hero h1 {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 22px;
        }
        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--color-accent), #FFD08A);
            -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, 0.72);
            margin-bottom: 40px;
            max-width: 540px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .hero-badges {
            display: flex;
            flex-direction: column;
            gap: 24px;
            align-items: flex-end;
            padding-right: 20px;
        }
        .hero-badges .data-badge {
            width: 260px;
            animation: floatY 5s ease-in-out infinite;
        }
        .hero-badges .data-badge:nth-child(2) {
            animation-delay: 1.2s;
            margin-right: 30px;
        }
        .hero-badges .data-badge:nth-child(3) {
            animation-delay: 2.4s;
            margin-right: 10px;
        }
        @keyframes floatY {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-12px);
            }
        }
        .scroll-down {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            color: rgba(255, 255, 255, 0.5);
            font-size: 24px;
            animation: bounceDown 2s infinite;
            cursor: pointer;
        }
        @keyframes bounceDown {
            0%,
            100% {
                transform: translate(-50%, 0);
            }
            50% {
                transform: translate(-50%, 10px);
            }
        }
        .stats-bar {
            padding: 48px 0;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 2px 12px rgba(74, 44, 138, 0.04);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-item {
            position: relative;
            padding: 16px 8px;
        }
        .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: -16px;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 48px;
            background: var(--color-border);
        }
        .stat-item .num {
            font-family: var(--font-en);
            font-size: clamp(30px, 4vw, 44px);
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .stat-item .num .suffix {
            font-size: 20px;
            color: var(--color-accent);
        }
        .stat-item .label {
            font-size: 14px;
            color: var(--color-text-2);
            margin-top: 4px;
        }
        .features {
            background: var(--color-bg);
        }
        .features-grid {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            grid-template-rows: auto auto;
            gap: 32px;
            align-items: stretch;
        }
        .feature-card {
            border-radius: var(--radius-large);
            padding: 40px;
            position: relative;
            overflow: hidden;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card.feature-main {
            grid-row: span 2;
            background: linear-gradient(145deg, #181226, #3A1C70);
            color: #fff;
            border: none;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 540px;
        }
        .feature-card.feature-main .feature-icon {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .feature-card.feature-main .feature-title {
            color: #fff;
            font-size: 28px;
            margin: 20px 0 10px;
        }
        .feature-card.feature-main .feature-desc {
            color: rgba(255, 255, 255, 0.75);
        }
        .feature-card.feature-main .feature-metric {
            display: flex;
            gap: 20px;
            margin-top: 24px;
        }
        .feature-card.feature-main .feature-metric div {
            background: rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-small);
            padding: 12px 18px;
            font-size: 14px;
            color: #fff;
        }
        .feature-card.feature-main .feature-metric b {
            font-size: 20px;
            color: var(--color-accent);
            margin-right: 4px;
        }
        .feature-card.feature-main .watermark {
            position: absolute;
            right: -20px;
            bottom: -30px;
            font-size: 160px;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.06);
            line-height: 1;
            pointer-events: none;
        }
        .feature-card.feature-sub {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
        }
        .feature-card.feature-sub:hover {
            border-color: var(--color-accent);
        }
        .feature-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            border-radius: 18px;
            font-size: 24px;
            background: rgba(123, 77, 224, 0.12);
            color: var(--color-primary);
            margin-bottom: 20px;
        }
        .feature-card .feature-badge-no {
            position: absolute;
            top: 20px;
            right: 24px;
            font-size: 14px;
            font-weight: 700;
            color: var(--color-accent);
            opacity: 0.7;
        }
        .feature-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .feature-desc {
            font-size: 15px;
            color: var(--color-text-2);
            line-height: 1.7;
        }
        .feature-card .more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary-2);
            transition: gap .25s ease;
        }
        .feature-card .more-link:hover {
            gap: 12px;
            color: var(--color-accent);
        }
        .demo {
            background: var(--color-surface);
        }
        .demo-wrap {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
        }
        .demo-window {
            background: #F3F0F9;
            border-radius: var(--radius-large);
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(74, 44, 138, 0.18);
            border: 1px solid var(--color-border);
            position: relative;
        }
        .demo-window-top {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 14px 18px;
            background: #fff;
            border-bottom: 1px solid var(--color-border);
        }
        .demo-window-top i {
            width: 11px;
            height: 11px;
            border-radius: 50%;
            display: inline-block;
        }
        .demo-window-top i:nth-child(1) {
            background: #EF6161;
        }
        .demo-window-top i:nth-child(2) {
            background: #F5B04B;
        }
        .demo-window-top i:nth-child(3) {
            background: #57C785;
        }
        .demo-window-top .addr {
            flex: 1;
            margin-left: 10px;
            background: var(--color-bg);
            border-radius: 999px;
            padding: 5px 16px;
            font-size: 12px;
            color: var(--color-text-2);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            text-align: center;
        }
        .demo-window img {
            width: 100%;
            height: auto;
        }
        .demo-window-bottom {
            display: flex;
            justify-content: space-around;
            padding: 16px 24px;
            background: #fff;
            border-top: 1px solid var(--color-border);
            font-size: 13px;
            color: var(--color-text-2);
        }
        .demo-window-bottom b {
            color: var(--color-primary);
            font-size: 16px;
        }
        .demo-steps {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .demo-step {
            display: flex;
            gap: 20px;
            position: relative;
            padding-bottom: 36px;
        }
        .demo-step:last-child {
            padding-bottom: 0;
        }
        .demo-step:not(:last-child)::before {
            content: '';
            position: absolute;
            left: 22px;
            top: 48px;
            bottom: 0;
            width: 2px;
            background: repeating-linear-gradient(180deg, var(--color-primary-2) 0 6px, transparent 6px 12px);
            opacity: 0.3;
        }
        .demo-step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(74, 44, 138, 0.25);
        }
        .demo-step-body h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 4px;
        }
        .demo-step-body p {
            font-size: 15px;
            color: var(--color-text-2);
            line-height: 1.6;
        }
        .demo-cta-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 32px;
            font-weight: 600;
            color: var(--color-primary);
            font-size: 16px;
            transition: gap .3s ease;
        }
        .demo-cta-link:hover {
            gap: 14px;
            color: var(--color-accent);
        }
        .news {
            background: var(--color-bg);
        }
        .news-wrap {
            display: grid;
            grid-template-columns: 1.4fr 0.6fr;
            gap: 32px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .news-item {
            background: var(--color-surface);
            border-radius: 18px;
            padding: 24px 28px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
            display: block;
        }
        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--color-accent);
        }
        .news-item-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 10px;
        }
        .news-item-tag {
            font-size: 12px;
            font-weight: 600;
            background: rgba(6, 182, 212, 0.1);
            color: #0E7A8A;
            padding: 4px 12px;
            border-radius: 999px;
        }
        .news-item-time {
            font-size: 13px;
            color: var(--color-text-2);
        }
        .news-item h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-dark);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color .3s ease;
        }
        .news-item:hover h4 {
            color: var(--color-accent-2);
        }
        .news-item p {
            font-size: 14px;
            color: var(--color-text-2);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 10px;
        }
        .news-item-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary-2);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-item-link:hover {
            gap: 10px;
            color: var(--color-accent);
        }
        .news-empty {
            text-align: center;
            padding: 48px 20px;
            background: var(--color-surface);
            border-radius: var(--radius-large);
            border: 1px dashed var(--color-border);
        }
        .news-empty p {
            color: var(--color-text-2);
            font-size: 16px;
        }
        .news-side {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .side-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 28px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
        }
        .side-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--color-border);
            position: relative;
        }
        .side-card h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 48px;
            height: 2px;
            background: var(--color-accent);
        }
        .side-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .side-tags a {
            font-size: 13px;
            padding: 6px 16px;
            border-radius: 999px;
            background: var(--color-bg);
            color: var(--color-text-2);
            border: 1px solid var(--color-border);
            transition: all .25s ease;
        }
        .side-tags a:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .side-promo {
            background: linear-gradient(145deg, #4A2C8A, #7B4DE0);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            color: #fff;
            text-align: center;
        }
        .side-promo h4 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .side-promo p {
            font-size: 14px;
            opacity: 0.75;
            margin-bottom: 20px;
        }
        .side-promo a {
            background: var(--color-accent);
            color: #fff;
            padding: 8px 24px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            display: inline-block;
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .side-promo a:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 18px rgba(245, 158, 11, 0.35);
        }
        .testimonials {
            background: var(--color-surface);
        }
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .testimonial-card {
            background: var(--color-bg);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            border: 1px solid var(--color-border);
            transition: transform .3s ease, box-shadow .3s ease;
            position: relative;
        }
        .testimonial-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .testimonial-card .quote-icon {
            font-size: 36px;
            color: var(--color-accent);
            margin-bottom: 16px;
            opacity: 0.5;
        }
        .testimonial-card .stars {
            color: var(--color-accent);
            font-size: 15px;
            margin-bottom: 14px;
            letter-spacing: 3px;
        }
        .testimonial-card p {
            font-size: 15px;
            color: var(--color-text);
            line-height: 1.7;
            margin-bottom: 24px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .testimonial-author img {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid transparent;
            transition: border-color .3s;
        }
        .testimonial-card:hover .testimonial-author img {
            border-color: var(--color-accent-2);
        }
        .testimonial-author .name {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-dark);
        }
        .testimonial-author .role {
            font-size: 13px;
            color: var(--color-text-2);
        }
        .brand-strip {
            margin-top: 56px;
            overflow: hidden;
            position: relative;
            -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
            mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
        }
        .brand-track {
            display: flex;
            gap: 60px;
            white-space: nowrap;
            animation: marquee 30s linear infinite;
        }
        .brand-track span {
            font-size: 18px;
            font-weight: 700;
            color: #B9B0C9;
            letter-spacing: 2px;
            transition: color .3s;
            cursor: default;
            font-family: var(--font-en);
        }
        .brand-track span:hover {
            color: var(--color-primary);
        }
        @keyframes marquee {
            0% {
                transform: translateX(0);
            }
            100% {
                transform: translateX(-50%);
            }
        }
        .faq-section {
            background: var(--color-bg);
        }
        .faq-wrap {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 40px;
            align-items: start;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-q {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 14px;
            padding: 16px 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: all .3s ease;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
        }
        .faq-q .faq-num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(123, 77, 224, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            color: var(--color-primary-2);
            flex-shrink: 0;
        }
        .faq-q:hover {
            border-color: var(--color-primary-2);
        }
        .faq-q.active {
            background: var(--color-surface);
            border-left: 4px solid var(--color-accent);
            box-shadow: var(--shadow-card);
            color: var(--color-dark);
        }
        .faq-q.active .faq-num {
            background: var(--gradient-primary);
            color: #fff;
        }
        .faq-panel-wrap {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 36px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            min-height: 360px;
        }
        .faq-answer {
            display: none;
            animation: fadeIn .25s ease;
        }
        .faq-answer.active {
            display: block;
        }
        .faq-answer h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 16px;
        }
        .faq-answer p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text-2);
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }
        .cta-banner {
            background: var(--gradient-primary);
            position: relative;
            overflow: hidden;
            padding: 120px 0;
            text-align: center;
            color: #fff;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.15);
        }
        .cta-banner h2 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            margin-bottom: 14px;
            line-height: 1.3;
            position: relative;
            z-index: 2;
        }
        .cta-banner p {
            font-size: 17px;
            opacity: 0.85;
            margin-bottom: 36px;
            position: relative;
            z-index: 2;
        }
        .cta-banner .btn {
            position: relative;
            z-index: 2;
        }
        .cta-floating {
            position: absolute;
            background: rgba(255, 255, 255, 0.92);
            border-radius: 18px;
            padding: 12px 20px;
            font-size: 14px;
            font-weight: 700;
            color: var(--color-primary);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
            z-index: 3;
        }
        .cta-floating .num {
            font-size: 22px;
            color: var(--color-accent);
            margin-right: 4px;
            font-family: var(--font-en);
        }
        .cta-floating.f1 {
            top: 40px;
            left: 8%;
            animation: floatY 4s ease-in-out infinite;
        }
        .cta-floating.f2 {
            top: 60%;
            right: 10%;
            animation: floatY 5s ease-in-out infinite 1s;
        }
        .cta-floating.f3 {
            bottom: 30px;
            left: 18%;
            animation: floatY 6s ease-in-out infinite 0.5s;
        }
        .site-footer {
            background: var(--color-dark);
            color: #B9B0C9;
            padding: 72px 0 0;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 56px;
        }
        .footer-brand .logo-text {
            font-size: 24px;
        }
        .footer-brand p {
            margin-top: 16px;
            line-height: 1.7;
            color: #8E84A0;
            font-size: 14px;
            max-width: 260px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }
        .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;
            font-size: 15px;
            color: #B9B0C9;
            transition: all .3s ease;
        }
        .footer-social a:hover {
            background: var(--color-accent);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-col h4 {
            font-size: 16px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--color-accent);
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            color: #8E84A0;
            transition: color .3s ease, padding-left .3s ease;
        }
        .footer-col ul a:hover {
            color: var(--color-accent);
            padding-left: 6px;
        }
        .footer-contact li {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            margin-bottom: 14px;
            color: #8E84A0;
        }
        .footer-contact i {
            color: var(--color-accent);
            margin-top: 5px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: #6E647F;
        }
        .footer-bottom a {
            color: #6E647F;
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }
        .bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 70px;
            background: rgba(74, 44, 138, 0.96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-top: 1px solid var(--color-accent);
            z-index: 999;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 24px;
            box-shadow: 0 -4px 20px rgba(24, 18, 38, 0.15);
        }
        .bottom-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .bottom-bar .slogan {
            color: rgba(255, 255, 255, 0.9);
            font-size: 15px;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .bottom-bar .slogan i {
            color: var(--color-accent);
        }
        .bottom-bar .btn {
            padding: 8px 22px;
            font-size: 14px;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
        }
        @media screen and (max-width: 1024px) {
            .hero-container {
                grid-template-columns: 1fr;
                gap: 48px;
                padding-top: 120px;
            }
            .hero-badges {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: flex-start;
                padding-right: 0;
            }
            .hero-badges .data-badge {
                width: auto;
                min-width: 180px;
                margin-right: 0 !important;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .feature-card.feature-main {
                min-height: auto;
                grid-row: auto;
            }
            .demo-wrap {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .news-wrap {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-wrap {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stat-item:not(:last-child)::after {
                display: none;
            }
        }
        @media screen and (max-width: 767px) {
            body {
                font-size: 16px;
            }
            section {
                padding: 64px 0;
            }
            .container {
                padding: 0 16px;
            }
            .site-header {
                height: 64px;
            }
            .site-header.scrolled {
                height: 60px;
            }
            .logo-text {
                font-size: 20px;
            }
            .main-nav {
                position: fixed;
                top: 0;
                right: -280px;
                width: 280px;
                height: 100vh;
                background: var(--color-dark);
                flex-direction: column;
                padding: 80px 32px 32px;
                transition: right .35s ease;
                box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
                z-index: 999;
            }
            .main-nav.open {
                right: 0;
            }
            .main-nav ul {
                flex-direction: column;
                align-items: flex-start;
                gap: 24px;
                width: 100%;
            }
            .main-nav a {
                font-size: 18px;
                color: #fff;
            }
            .main-nav a.active {
                border-left: 3px solid var(--color-accent);
                padding-left: 12px;
            }
            .main-nav a::after {
                display: none;
            }
            .nav-cta {
                margin: 24px 0 0;
                width: 100%;
                text-align: center;
            }
            .menu-toggle {
                display: block;
                z-index: 1001;
            }
            .hero {
                min-height: 100vh;
            }
            .hero-container {
                padding-top: 100px;
                padding-bottom: 24px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .hero-badges {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-badges .data-badge {
                width: 100%;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .features-grid {
                gap: 20px;
            }
            .feature-card {
                padding: 28px 22px;
            }
            .feature-card.feature-main {
                padding: 32px 24px;
            }
            .demo-wrap {
                gap: 32px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .faq-panel-wrap {
                padding: 24px;
                min-height: auto;
            }
            .cta-banner {
                padding: 80px 0;
            }
            .cta-floating {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .bottom-bar {
                height: 60px;
                padding-bottom: env(safe-area-inset-bottom);
            }
            .bottom-bar .slogan span {
                display: none;
            }
            .bottom-bar .btn {
                font-size: 14px;
                padding: 8px 18px;
            }
            .section-head {
                margin-bottom: 36px;
            }
        }
        @media screen and (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .news-item {
                padding: 20px 18px;
            }
            .news-wrap {
                gap: 24px;
            }
        }

/* roulang page: category1 */
:root{
    --color-primary:#4A2C8A;
    --color-primary-2:#7B4DE0;
    --color-accent:#F59E0B;
    --color-accent-2:#06B6D4;
    --color-dark:#181226;
    --color-bg:#F8F6FC;
    --color-surface:#FFFFFF;
    --color-text:#2B2338;
    --color-text-2:#6E647F;
    --color-border:#E7E0F0;
    --radius-lg:24px;
    --radius-md:20px;
    --radius-sm:12px;
    --radius-pill:999px;
    --shadow-card:0 2px 8px rgba(74,44,138,.06),0 8px 24px rgba(74,44,138,.04);
    --shadow-hover:0 12px 32px rgba(74,44,138,.14),0 2px 8px rgba(74,44,138,.08);
    --shadow-badge:0 8px 32px rgba(74,44,138,.24);
    --gradient-main:linear-gradient(135deg,#4A2C8A 0%,#7B4DE0 55%,#F59E0B 150%);
    --gradient-cta:linear-gradient(135deg,#F59E0B,#F59E0B 60%,#E97E0A);
    --container-max:1280px;
    --section-padding:96px;
    --transition:all .3s cubic-bezier(.25,.8,.25,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
    background:var(--color-bg);
    color:var(--color-text);
    font-size:17px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit}
.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}
section{padding:var(--section-padding) 0}
.section-head{text-align:center;margin-bottom:56px}
.section-head .section-title{font-size:clamp(26px,4vw,38px);font-weight:700;color:var(--color-dark);line-height:1.3;margin-bottom:14px}
.section-head .section-subtitle{font-size:17px;color:var(--color-text-2);max-width:640px;margin:0 auto;line-height:1.7}
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:14px 38px;border-radius:var(--radius-pill);font-size:16px;font-weight:600;
    transition:var(--transition);cursor:pointer;border:none;line-height:1.4;white-space:nowrap;
}
.btn-primary{
    background:var(--gradient-cta);color:#fff;
    box-shadow:0 4px 16px rgba(245,158,11,.25);
}
.btn-primary:hover{
    filter:brightness(1.08);
    box-shadow:0 8px 24px rgba(245,158,11,.35);
    transform:translateY(-2px);
    color:#fff;
}
.btn-primary:active{transform:scale(.98)}
.btn-outline{
    background:transparent;border:2px solid var(--color-primary-2);color:var(--color-primary-2);
}
.btn-outline:hover{background:var(--color-primary-2);color:#fff;border-color:var(--color-primary-2)}
.btn-outline:active{transform:scale(.98)}
.btn:focus-visible{
    outline:2px solid var(--color-accent);outline-offset:3px;
}

/* Header Nav */
.site-header{
    position:fixed;top:0;left:0;right:0;z-index:1000;
    height:80px;transition:var(--transition);
}
.site-header .container{
    display:flex;align-items:center;justify-content:space-between;height:100%;
}
.site-header.scrolled{
    background:rgba(74,44,138,.92);
    backdrop-filter:blur(12px);
    box-shadow:0 4px 24px rgba(24,18,38,.3);
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
    width:32px;height:32px;border-radius:8px;
    background:var(--gradient-main);
    display:inline-flex;align-items:center;justify-content:center;
    box-shadow:0 4px 12px rgba(74,44,138,.3);
    position:relative;
}
.logo-mark::after{
    content:"彩";color:#fff;font-size:16px;font-weight:800;
}
.logo-text{
    font-size:22px;font-weight:800;color:#fff;
    letter-spacing:.5px;
    line-height:1.2;
}
.logo-text .logo-sub{
    color:var(--color-accent);
    font-weight:800;
}
.main-nav{
    display:flex;align-items:center;gap:32px;
}
.main-nav ul{
    display:flex;align-items:center;gap:36px;margin:0;
}
.main-nav ul li a{
    color:rgba(255,255,255,.88);
    font-size:16px;font-weight:500;
    padding:6px 0;position:relative;
    transition:var(--transition);
}
.main-nav ul li a::after{
    content:"";position:absolute;bottom:0;left:0;width:0;height:3px;
    background:var(--color-accent);border-radius:3px;
    transition:var(--transition);
}
.main-nav ul li a:hover{color:#fff}
.main-nav ul li a:hover::after{width:100%}
.main-nav ul li a.active{color:#fff}
.main-nav ul li a.active::after{width:100%}
.nav-cta{
    padding:10px 22px;font-size:15px;
    background:var(--gradient-cta);color:#fff;
    border-radius:var(--radius-pill);
    box-shadow:0 4px 14px rgba(245,158,11,.3);
    transition:var(--transition);
}
.nav-cta:hover{
    filter:brightness(1.08);transform:translateY(-1px);
    box-shadow:0 8px 20px rgba(245,158,11,.4);color:#fff;
}
.mobile-toggle{
    display:none;background:transparent;border:none;
    width:44px;height:44px;cursor:pointer;padding:10px;
    border-radius:8px;flex-direction:column;justify-content:center;gap:5px;
}
.mobile-toggle span{
    display:block;width:24px;height:2px;background:#fff;border-radius:2px;
    transition:var(--transition);
}
.mobile-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.mobile-toggle.open span:nth-child(2){opacity:0}
.mobile-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Page Hero */
.page-hero{
    position:relative;padding:180px 0 100px;
    background-color:var(--color-dark);
    background-image:url('/assets/images/backpic/back-1.png');
    background-size:cover;background-position:center;
    overflow:hidden;
}
.page-hero::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(120deg,rgba(24,18,38,.92) 30%,rgba(74,44,138,.75) 70%,rgba(245,158,11,.25) 100%);
}
.page-hero::after{
    content:"";position:absolute;width:420px;height:420px;border-radius:50%;
    background:rgba(123,77,224,.35);filter:blur(90px);
    top:-80px;right:-60px;pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{
    display:inline-flex;align-items:center;gap:10px;
    background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
    padding:8px 18px;border-radius:var(--radius-pill);
    font-size:13px;color:rgba(255,255,255,.85);
    backdrop-filter:blur(8px);
    margin-bottom:32px;
}
.breadcrumb a:hover{color:var(--color-accent)}
.breadcrumb i{font-size:11px;color:rgba(255,255,255,.5)}
.hero-title{
    font-size:clamp(32px,5vw,52px);font-weight:800;color:#fff;
    line-height:1.18;max-width:680px;letter-spacing:.5px;
    margin-bottom:24px;
}
.hero-title .highlight{
    background:linear-gradient(135deg,#F59E0B,#FFC964);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
    background-clip:text;
}
.hero-subtitle{
    font-size:18px;line-height:1.75;color:rgba(255,255,255,.82);
    max-width:580px;margin-bottom:40px;
}
.hero-actions{display:flex;gap:20px;flex-wrap:wrap}
.hero-metrics{
    display:grid;grid-template-columns:repeat(3,1fr);gap:28px;
    margin-top:72px;max-width:680px;
}
.hero-metric{
    background:rgba(255,255,255,.1);
    border:1px solid rgba(255,255,255,.16);
    border-radius:var(--radius-md);
    padding:20px 24px;
    backdrop-filter:blur(10px);
    transition:var(--transition);
}
.hero-metric:hover{transform:translateY(-4px);background:rgba(255,255,255,.16)}
.hero-metric .num{
    font-size:clamp(28px,4vw,42px);font-weight:800;
    background:linear-gradient(135deg,#F59E0B,#FFC964);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
    line-height:1.2;
}
.hero-metric .label{font-size:13px;color:rgba(255,255,255,.7);margin-top:4px}

/* Feature Section */
.feature-section{background:var(--color-bg)}
.feature-grid{
    display:grid;grid-template-columns:1.1fr 1fr;grid-template-rows:repeat(2,1fr);
    gap:32px;
}
.feature-card{
    background:var(--color-surface);border-radius:var(--radius-lg);
    padding:36px;position:relative;overflow:hidden;
    box-shadow:var(--shadow-card);
    border:1px solid var(--color-border);
    transition:var(--transition);
}
.feature-card-main{
    background:linear-gradient(145deg,var(--color-dark),var(--color-primary));
    color:#fff;border:none;grid-row:span 2;
    display:flex;flex-direction:column;justify-content:space-between;
}
.feature-card-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.feature-card-main .feature-num{
    color:rgba(255,255,255,.12);font-size:120px;font-weight:800;
    position:absolute;right:20px;bottom:-10px;line-height:1;pointer-events:none;
}
.feature-card-main .feature-desc{color:rgba(255,255,255,.75)}
.feature-card-main .feature-tag{
    display:inline-flex;align-items:center;gap:6px;
    background:rgba(245,158,11,.18);color:#FFC964;
    border:1px solid rgba(245,158,11,.3);
    padding:6px 14px;border-radius:var(--radius-pill);font-size:13px;margin-top:24px;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--color-accent)}
.feature-card-main:hover{border-color:transparent}
.feature-num{
    font-size:14px;font-weight:700;color:var(--color-accent);
    letter-spacing:1px;margin-bottom:16px;
}
.feature-icon{
    width:64px;height:64px;border-radius:16px;
    background:linear-gradient(135deg,var(--color-primary),var(--color-primary-2));
    display:flex;align-items:center;justify-content:center;
    color:#fff;font-size:26px;margin-bottom:24px;
    box-shadow:0 8px 20px rgba(74,44,138,.2);
}
.feature-card-main .feature-icon{background:rgba(255,255,255,.15)}
.feature-card h3{font-size:22px;font-weight:700;color:var(--color-dark);margin-bottom:12px}
.feature-card-main h3{color:#fff}
.feature-desc{font-size:15px;color:var(--color-text-2);line-height:1.7}
.feature-footer{
    display:flex;align-items:center;gap:6px;margin-top:24px;
    color:var(--color-primary-2);font-weight:600;font-size:14px;
}
.feature-card-main .feature-footer{color:#FFC964}
.feature-footer:hover{color:var(--color-accent);gap:10px}

/* Content Layout Section */
.content-section{background:var(--color-surface)}
.content-layout{
    display:grid;grid-template-columns:1fr 360px;gap:56px;
    align-items:start;
}
.content-main h2{
    font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--color-dark);
    margin-bottom:24px;line-height:1.35;
}
.content-main h3{
    font-size:20px;font-weight:700;color:var(--color-primary);
    margin-top:36px;margin-bottom:14px;
}
.content-main p{color:var(--color-text-2);line-height:1.85;margin-bottom:18px;font-size:16px}
.content-list{
    display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;
}
.content-list li{
    background:var(--color-bg);border:1px solid var(--color-border);
    border-radius:var(--radius-sm);padding:16px 20px;
    display:flex;align-items:flex-start;gap:12px;
    transition:var(--transition);
}
.content-list li:hover{border-color:var(--color-accent);background:#fff;box-shadow:var(--shadow-card)}
.content-list li i{color:var(--color-accent-2);font-size:18px;margin-top:2px}
.content-list li span{font-size:15px;color:var(--color-text)}
.sidebar-card{
    background:var(--color-bg);
    border:1px solid var(--color-border);
    border-radius:var(--radius-lg);
    overflow:hidden;
    box-shadow:var(--shadow-card);
    position:sticky;top:110px;
}
.sidebar-img img{width:100%;height:210px;object-fit:cover}
.sidebar-body{padding:28px}
.sidebar-body h4{
    font-size:20px;font-weight:700;color:var(--color-dark);margin-bottom:10px;
}
.sidebar-body p{font-size:14px;color:var(--color-text-2);line-height:1.7;margin-bottom:22px}
.keyword-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.keyword-tags span{
    background:rgba(6,182,212,.1);border:1px solid rgba(6,182,212,.2);
    color:var(--color-accent-2);font-size:13px;font-weight:500;
    padding:5px 14px;border-radius:var(--radius-pill);
}
.sidebar-stats{
    display:grid;grid-template-columns:1fr 1fr;gap:14px;
}
.stat-box{
    background:var(--color-surface);border-radius:var(--radius-sm);
    padding:16px;text-align:center;border:1px solid var(--color-border);
    transition:var(--transition);
}
.stat-box:hover{border-color:var(--color-accent-2)}
.stat-box .num{
    font-size:26px;font-weight:800;color:var(--color-primary);
    line-height:1.2;
}
.stat-box .lbl{font-size:12px;color:var(--color-text-2);margin-top:2px}

/* Stats Section */
.stats-section{
    background:var(--color-dark);
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
    position:relative;overflow:hidden;
}
.stats-section::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(135deg,rgba(24,18,38,.94),rgba(74,44,138,.85));
}
.stats-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:32px;position:relative;z-index:1;
}
.stat-item{
    text-align:center;background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.12);
    border-radius:var(--radius-lg);
    padding:40px 20px;
    backdrop-filter:blur(8px);
    transition:var(--transition);
}
.stat-item:hover{transform:translateY(-6px);background:rgba(255,255,255,.1)}
.stat-item .num{
    font-size:clamp(32px,5vw,48px);font-weight:800;
    background:linear-gradient(135deg,#FFC964,#F59E0B);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
    line-height:1.2;
}
.stat-item .label{color:rgba(255,255,255,.75);font-size:15px;margin-top:10px}

/* Process Section */
.process-section{background:var(--color-bg)}
.process-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:28px;
    position:relative;
}
.process-item{
    background:var(--color-surface);border-radius:var(--radius-lg);
    padding:36px 28px;box-shadow:var(--shadow-card);
    border:1px solid var(--color-border);
    position:relative;transition:var(--transition);
}
.process-item:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--color-accent)}
.step-num{
    width:56px;height:56px;border-radius:50%;
    background:var(--gradient-main);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:22px;font-weight:800;margin-bottom:22px;
    box-shadow:0 8px 20px rgba(74,44,138,.25);
}
.process-item h3{font-size:18px;font-weight:700;color:var(--color-dark);margin-bottom:10px}
.process-item p{font-size:14px;color:var(--color-text-2);line-height:1.7}

/* FAQ Section */
.faq-section{background:var(--color-surface)}
.faq-layout{
    display:grid;grid-template-columns:280px 1fr;gap:48px;
    align-items:start;
}
.faq-title-block h2{
    font-size:clamp(26px,3vw,34px);font-weight:800;color:var(--color-dark);line-height:1.3;
}
.faq-title-block p{
    color:var(--color-text-2);font-size:15px;margin-top:14px;line-height:1.7;
}
.faq-list{}
.faq-item{
    border:1px solid var(--color-border);border-radius:var(--radius-md);
    margin-bottom:16px;overflow:hidden;background:var(--color-surface);
    transition:var(--transition);
}
.faq-item.active{border-color:var(--color-primary-2);box-shadow:var(--shadow-card)}
.faq-question{
    display:flex;align-items:center;justify-content:space-between;
    padding:20px 24px;cursor:pointer;font-size:16px;font-weight:600;color:var(--color-text);
    transition:var(--transition);background:var(--color-bg);
}
.faq-item.active .faq-question{background:var(--color-surface);color:var(--color-primary)}
.faq-question i{
    transition:var(--transition);color:var(--color-primary-2);
    font-size:18px;flex-shrink:0;margin-left:16px;
}
.faq-item.active .faq-question i{transform:rotate(180deg);color:var(--color-accent)}
.faq-answer{
    max-height:0;overflow:hidden;transition:max-height .4s ease;
}
.faq-answer-inner{
    padding:0 24px 22px;font-size:15px;color:var(--color-text-2);line-height:1.8;
}

/* Content Cards */
.cards-section{background:var(--color-bg)}
.cards-grid{
    display:grid;grid-template-columns:repeat(3,1fr);gap:32px;
}
.content-card{
    background:var(--color-surface);border-radius:var(--radius-lg);
    overflow:hidden;box-shadow:var(--shadow-card);border:1px solid var(--color-border);
    transition:var(--transition);
}
.content-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--color-accent)}
.content-card .card-img{height:180px;overflow:hidden;position:relative}
.content-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.content-card:hover .card-img img{transform:scale(1.05)}
.content-card .card-body{padding:28px 26px}
.content-card .card-tag{
    display:inline-block;background:rgba(6,182,212,.1);
    color:var(--color-accent-2);font-size:12px;font-weight:600;
    padding:4px 12px;border-radius:var(--radius-pill);margin-bottom:12px;
}
.content-card h3{font-size:19px;font-weight:700;color:var(--color-dark);margin-bottom:10px}
.content-card p{font-size:14px;color:var(--color-text-2);line-height:1.7;margin-bottom:18px}
.content-card .card-link{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--color-primary-2);font-weight:600;font-size:14px;
}
.content-card .card-link:hover{color:var(--color-accent);gap:10px}

/* CTA Banner */
.cta-section{
    background:var(--color-dark);
    background-image:url('/assets/images/backpic/back-3.webp');
    background-size:cover;background-position:center;
    position:relative;overflow:hidden;
}
.cta-section::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(135deg,rgba(74,44,138,.92),rgba(24,18,38,.88));
}
.cta-section::after{
    content:"";position:absolute;width:360px;height:360px;border-radius:50%;
    background:rgba(245,158,11,.25);filter:blur(80px);
    bottom:-100px;right:15%;pointer-events:none;
}
.cta-inner{
    position:relative;z-index:2;text-align:center;
    max-width:720px;margin:0 auto;
}
.cta-inner h2{
    font-size:clamp(28px,4vw,40px);font-weight:800;color:#fff;line-height:1.3;
    margin-bottom:16px;
}
.cta-inner p{font-size:17px;color:rgba(255,255,255,.8);margin-bottom:40px;line-height:1.7}
.cta-actions{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}
.cta-btn-white{
    background:#fff;color:var(--color-primary);
    font-weight:700;padding:14px 40px;border-radius:var(--radius-pill);
    transition:var(--transition);
}
.cta-btn-white:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,255,255,.25);color:var(--color-primary)}
.cta-btn-outline-white{
    background:transparent;border:2px solid rgba(255,255,255,.6);color:#fff;
    padding:14px 40px;border-radius:var(--radius-pill);font-weight:600;
    transition:var(--transition);
}
.cta-btn-outline-white:hover{background:rgba(255,255,255,.15);border-color:#fff}

/* Footer */
.site-footer{
    background:var(--color-dark);color:rgba(255,255,255,.7);
    padding:80px 0 0;font-size:15px;
}
.footer-grid{
    display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:48px;
    padding-bottom:60px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .logo-text{font-size:26px}
.footer-brand p{font-size:14px;line-height:1.8;margin:20px 0 24px;color:rgba(255,255,255,.6);max-width:320px}
.footer-social{display:flex;gap:14px}
.footer-social a{
    width:42px;height:42px;border-radius:50%;
    background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);
    display:flex;align-items:center;justify-content:center;
    color:rgba(255,255,255,.8);font-size:16px;transition:var(--transition);
}
.footer-social a:hover{
    background:var(--color-accent);color:#fff;
    transform:translateY(-3px);border-color:var(--color-accent);
}
.footer-col h4{
    color:#fff;font-size:17px;font-weight:700;margin-bottom:24px;
}
.footer-col ul li{margin-bottom:14px}
.footer-col ul li a{color:rgba(255,255,255,.6);transition:var(--transition);font-size:14px}
.footer-col ul li a:hover{color:var(--color-accent)}
.footer-contact li{
    display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.6);
    font-size:14px;margin-bottom:14px;
}
.footer-contact i{color:var(--color-accent);width:18px;text-align:center}
.footer-bottom{
    text-align:center;padding:28px 0;font-size:13px;
    color:rgba(255,255,255,.45);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--color-accent)}

/* Responsive */
@media(max-width:1024px){
    :root{--section-padding:80px}
    .feature-grid{grid-template-columns:1fr 1fr}
    .feature-card-main{grid-row:span 1}
    .content-layout{grid-template-columns:1fr 320px;gap:36px}
    .process-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:767px){
    :root{--section-padding:64px}
    .container{padding:0 16px}
    .site-header{height:64px}
    .main-nav{
        position:fixed;top:64px;left:0;right:0;
        background:var(--color-dark);
        flex-direction:column;align-items:flex-start;
        padding:24px 20px;gap:20px;
        transform:translateY(-120%);opacity:0;pointer-events:none;
        transition:var(--transition);
        box-shadow:0 20px 40px rgba(0,0,0,.3);
    }
    .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
    .main-nav ul{flex-direction:column;gap:18px;width:100%}
    .main-nav ul li a{display:block;font-size:18px}
    .nav-cta{width:100%;justify-content:center;padding:14px}
    .mobile-toggle{display:flex}
    .page-hero{padding:140px 0 70px}
    .hero-title{font-size:30px}
    .hero-subtitle{font-size:16px}
    .hero-metrics{grid-template-columns:1fr;gap:16px}
    .feature-grid{grid-template-columns:1fr}
    .content-layout{grid-template-columns:1fr}
    .content-list{grid-template-columns:1fr}
    .sidebar-card{position:static}
    .stats-grid{grid-template-columns:repeat(2,1fr);gap:18px}
    .process-grid{grid-template-columns:1fr}
    .faq-layout{grid-template-columns:1fr;gap:28px}
    .cards-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr;gap:40px}
    .cta-actions{flex-direction:column;align-items:center}
    .cta-actions .btn{width:100%}
}
@media(max-width:520px){
    .stats-grid{grid-template-columns:1fr 1fr;gap:12px}
    .stat-item{padding:24px 14px}
    .hero-actions{flex-direction:column;width:100%}
    .hero-actions .btn{width:100%}
    .footer-bottom{font-size:12px;line-height:1.8}
}

/* roulang page: article */
:root{
    --color-primary:#4A2C8A;
    --color-primary-2:#7B4DE0;
    --color-accent:#F59E0B;
    --color-accent-2:#06B6D4;
    --color-dark:#181226;
    --color-bg:#F8F6FC;
    --color-surface:#FFFFFF;
    --color-text:#2B2338;
    --color-text-2:#6E647F;
    --color-border:#E7E0F0;
    --radius-lg:24px;
    --radius-md:16px;
    --radius-pill:999px;
    --shadow-sm:0 2px 8px rgba(74,44,138,0.06),0 8px 24px rgba(74,44,138,0.04);
    --shadow-md:0 12px 32px rgba(74,44,138,0.14),0 2px 8px rgba(74,44,138,0.08);
    --shadow-hero:0 8px 32px rgba(74,44,138,0.24);
    --gradient-brand:linear-gradient(135deg,#4A2C8A 0%,#7B4DE0 55%,#F59E0B 150%);
    --gradient-cta:linear-gradient(135deg,#F59E0B,#F59E0B 60%,#E97E0A);
    --font-main:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
    --font-num:Inter,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;}
body{
    font-family:var(--font-main);
    font-size:17px;
    line-height:1.85;
    color:var(--color-text);
    background:var(--color-bg);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{text-decoration:none;color:inherit;transition:color .3s;}
a:hover{color:var(--color-accent-2);}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit;}
.container{max-width:1280px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}

/* ===== Buttons ===== */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:16px;font-weight:600;padding:14px 38px;border-radius:var(--radius-pill);
    border:none;cursor:pointer;transition:all .3s ease;text-decoration:none;line-height:1.4;
    white-space:nowrap;
}
.btn-primary{
    background:var(--gradient-cta);color:#fff;box-shadow:0 4px 16px rgba(245,158,11,.25);
}
.btn-primary:hover{
    transform:translateY(-2px);box-shadow:0 8px 28px rgba(245,158,11,.38);
    filter:brightness(1.08);color:#fff;
}
.btn-primary:active{transform:scale(.98);}
.btn-outline{
    background:transparent;color:var(--color-primary-2);border:2px solid var(--color-primary-2);
}
.btn-outline:hover{
    background:var(--color-primary-2);color:#fff;transform:translateY(-2px);
    box-shadow:0 8px 24px rgba(74,44,138,.18);
}
.btn-outline:active{transform:scale(.98);}
.btn-dark{
    background:var(--color-dark);color:#fff;
}
.btn-dark:hover{
    background:var(--color-primary);color:#fff;transform:translateY(-2px);
}
a:focus-visible,button:focus-visible{outline:2px solid var(--color-accent);outline-offset:3px;}

/* ===== Header / Navigation ===== */
.site-header{
    position:fixed;top:0;left:0;right:0;z-index:100;
    padding:18px 0;background:transparent;
    transition:background .35s ease,box-shadow .35s ease,padding .35s ease;
}
.site-header.scrolled{
    padding:10px 0;
    background:rgba(24,18,38,.92);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    box-shadow:0 4px 24px rgba(0,0,0,.25);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;}
.logo-mark{
    width:34px;height:34px;border-radius:10px;flex-shrink:0;
    background:var(--gradient-brand);
    position:relative;
    box-shadow:0 4px 14px rgba(74,44,138,.35);
}
.logo-mark::after{
    content:'';position:absolute;top:8px;left:8px;width:18px;height:18px;border-radius:6px;
    background:rgba(255,255,255,.28);
}
.logo-text{
    font-size:22px;font-weight:800;color:#fff;letter-spacing:1px;
}
.logo-sub{
    color:var(--color-accent);font-weight:700;margin-left:1px;
}
.main-nav{
    display:flex;align-items:center;gap:32px;
}
.main-nav ul{
    display:flex;align-items:center;gap:32px;list-style:none;margin:0;padding:0;
}
.main-nav ul li a{
    color:rgba(255,255,255,.85);font-size:16px;font-weight:500;
    padding:10px 2px;position:relative;text-decoration:none;
    transition:color .3s;
}
.main-nav ul li a:hover{color:var(--color-accent);}
.main-nav ul li a::after{
    content:'';position:absolute;left:0;bottom:0;width:0;height:3px;
    background:var(--color-accent);border-radius:3px;transition:width .3s;
}
.main-nav ul li a:hover::after,
.main-nav ul li a.active::after{width:100%;}
.main-nav ul li a.active{color:#fff;}
.nav-cta{
    padding:10px 24px;font-size:15px;box-shadow:0 4px 18px rgba(245,158,11,.3);
}
.nav-toggle{
    display:none;background:transparent;border:none;cursor:pointer;
    width:36px;height:36px;position:relative;z-index:120;
}
.nav-toggle span{
    display:block;width:24px;height:2px;background:#fff;border-radius:2px;
    margin:5px auto;transition:transform .3s,opacity .3s;
}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.active span:nth-child(2){opacity:0;}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ===== Article Hero ===== */
.article-hero{
    position:relative;padding:190px 0 90px;background:var(--color-dark);overflow:hidden;
}
.article-hero-bg{
    position:absolute;inset:0;background-size:cover;background-position:center;opacity:.35;
}
.article-hero-overlay{
    position:absolute;inset:0;
    background:linear-gradient(135deg,rgba(24,18,38,.92) 0%,rgba(74,44,138,.72) 55%,rgba(245,158,11,.18) 100%);
}
.article-hero-content{
    position:relative;z-index:2;max-width:920px;margin:0 auto;text-align:center;
}
.breadcrumb{
    display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;
    background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
    border-radius:var(--radius-pill);padding:8px 22px;width:max-content;max-width:100%;
    margin:0 auto 24px;
    font-size:14px;color:rgba(255,255,255,.75);
}
.breadcrumb a{color:rgba(255,255,255,.85);text-decoration:none;}
.breadcrumb a:hover{color:var(--color-accent);}
.breadcrumb .divider{opacity:.45;}
.breadcrumb .current{color:var(--color-accent);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:320px;}
.article-hero-content h1{
    font-size:clamp(28px,4.2vw,44px);font-weight:800;line-height:1.25;
    color:#fff;margin:0 auto 22px;max-width:820px;letter-spacing:1px;
}
.article-meta{
    display:flex;align-items:center;justify-content:center;gap:24px;flex-wrap:wrap;
    color:rgba(255,255,255,.72);font-size:14px;
}
.article-meta span{display:inline-flex;align-items:center;gap:8px;}
.article-meta i{color:var(--color-accent);}

/* ===== Article Main ===== */
.article-main{
    padding:80px 0 96px;background:var(--color-bg);
}
.article-wrap{
    max-width:920px;margin:0 auto;
}
.article-content{
    background:var(--color-surface);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-sm);
    padding:56px 60px;
    border:1px solid var(--color-border);
}
.article-content h2{
    font-size:28px;font-weight:700;color:var(--color-dark);
    margin:44px 0 18px;line-height:1.4;
    padding-left:16px;border-left:4px solid var(--color-accent);
    border-radius:2px;
}
.article-content h3{
    font-size:22px;font-weight:600;color:var(--color-dark);
    margin:32px 0 14px;line-height:1.45;
}
.article-content h4{
    font-size:18px;font-weight:600;color:var(--color-primary);
    margin:24px 0 12px;
}
.article-content p{
    margin:0 0 18px;color:var(--color-text);line-height:1.9;
}
.article-content img{
    border-radius:16px;border:1px solid var(--color-border);
    margin:24px auto;box-shadow:var(--shadow-sm);
}
.article-content blockquote{
    margin:28px 0;padding:24px 28px;
    background:rgba(74,44,138,.05);
    border-left:4px solid var(--color-primary-2);
    border-radius:0 16px 16px 0;
    color:var(--color-text-2);font-style:italic;line-height:1.8;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content pre{
    background:var(--color-dark);color:#D9CFF2;border-radius:16px;
    padding:24px 28px;overflow-x:auto;margin:24px 0;
    font-family:"SFMono-Regular","Consolas","Liberation Mono",monospace;
    font-size:14px;line-height:1.7;
}
.article-content code{
    font-family:"SFMono-Regular","Consolas","Liberation Mono",monospace;
    background:rgba(74,44,138,.08);color:var(--color-primary);
    padding:2px 8px;border-radius:6px;font-size:.9em;
}
.article-content pre code{
    background:transparent;color:inherit;padding:0;border-radius:0;font-size:14px;
}
.article-content ul,.article-content ol{
    margin:0 0 22px;padding-left:28px;color:var(--color-text);line-height:1.85;
}
.article-content ul{list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content ul li,.article-content ol li{margin-bottom:8px;padding-left:6px;}
.article-content a{
    color:var(--color-accent-2);text-decoration:underline;text-underline-offset:3px;
}
.article-content a:hover{color:var(--color-primary-2);}
.article-content hr{
    border:none;border-top:1px solid var(--color-border);margin:40px 0;
}
.article-empty{
    text-align:center;padding:80px 30px;
}
.article-empty i{
    font-size:64px;color:var(--color-border);margin-bottom:20px;
}
.article-empty h3{
    font-size:24px;color:var(--color-dark);margin-bottom:10px;
}
.article-empty p{
    color:var(--color-text-2);margin-bottom:28px;
}

/* ===== Tags ===== */
.article-tags{
    display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;
    margin-top:32px;
}
.article-tags .tag{
    display:inline-block;padding:6px 18px;border-radius:var(--radius-pill);
    background:var(--color-surface);border:1px solid var(--color-border);
    color:var(--color-text-2);font-size:13px;font-weight:500;
    transition:border-color .3s,color .3s,transform .3s;
    cursor:default;
}
.article-tags .tag:hover{
    border-color:var(--color-accent);color:var(--color-primary);transform:translateY(-2px);
}

/* ===== Related Section ===== */
.related-section{
    margin-top:64px;text-align:center;
}
.related-section .section-title{
    font-size:30px;font-weight:800;color:var(--color-dark);margin-bottom:12px;
    text-align:center;
}
.related-section .section-sub{
    color:var(--color-text-2);font-size:15px;margin-bottom:36px;text-align:center;
}
.related-grid{
    display:flex;gap:24px;justify-content:center;flex-wrap:wrap;
}
.related-col{
    width:calc(50% - 12px);min-width:280px;max-width:420px;
}
.related-card{
    display:block;background:var(--color-surface);border-radius:var(--radius-md);
    border:1px solid var(--color-border);overflow:hidden;text-decoration:none;
    transition:transform .35s,box-shadow .35s,border-color .35s;
    height:100%;
}
.related-card:hover{
    transform:translateY(-6px);box-shadow:var(--shadow-md);
    border-color:var(--color-accent);
}
.related-thumb{
    width:100%;height:190px;overflow:hidden;background:var(--color-bg);
}
.related-thumb img{
    width:100%;height:100%;object-fit:cover;transition:transform .5s;
}
.related-card:hover .related-thumb img{transform:scale(1.06);}
.related-info{padding:20px 22px 24px;text-align:left;}
.related-info h3{
    font-size:16px;font-weight:600;color:var(--color-dark);line-height:1.5;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    margin-bottom:10px;
    transition:color .3s;
}
.related-card:hover .related-info h3{color:var(--color-accent-2);}
.related-date{
    font-size:13px;color:var(--color-text-2);
    display:inline-flex;align-items:center;gap:6px;
}
.related-date i{color:var(--color-accent);}

/* ===== Article Actions ===== */
.article-actions{
    text-align:center;margin-top:56px;
}
.article-actions .btn-outline{
    padding:14px 40px;
}

/* ===== CTA Banner ===== */
.cta-banner{
    position:relative;background:var(--gradient-brand);padding:80px 0;
    overflow:hidden;text-align:center;
}
.cta-banner::before{
    content:'';position:absolute;top:-120px;right:-80px;width:320px;height:320px;
    background:rgba(255,255,255,.08);border-radius:50%;
}
.cta-banner::after{
    content:'';position:absolute;bottom:-140px;left:-60px;width:360px;height:360px;
    background:rgba(245,158,11,.22);border-radius:50%;
}
.cta-banner .container{position:relative;z-index:2;}
.cta-banner h2{
    font-size:clamp(26px,4vw,38px);font-weight:800;color:#fff;margin-bottom:14px;
    letter-spacing:2px;
}
.cta-banner p{
    color:rgba(255,255,255,.82);font-size:16px;max-width:640px;margin:0 auto 30px;
    line-height:1.7;
}
.cta-banner .btn-cta-light{
    background:#fff;color:var(--color-primary-2);font-weight:700;
    padding:14px 44px;border-radius:var(--radius-pill);
    box-shadow:0 8px 30px rgba(0,0,0,.15);transition:all .3s;
}
.cta-banner .btn-cta-light:hover{
    transform:translateY(-3px);box-shadow:0 14px 34px rgba(0,0,0,.22);
    color:var(--color-primary);background:#f8f6fc;
}

/* ===== Footer ===== */
.site-footer{
    background:var(--color-dark);color:rgba(255,255,255,.6);
    padding:70px 0 0;margin-top:0;
}
.footer-grid{
    display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:44px;
    padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .logo{
    margin-bottom:14px;
}
.footer-brand p{
    font-size:14px;line-height:1.8;color:rgba(255,255,255,.55);
    max-width:360px;margin-bottom:20px;
}
.footer-social{display:flex;gap:10px;}
.footer-social a{
    width:38px;height:38px;border-radius:50%;
    background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;
    color:rgba(255,255,255,.7);font-size:15px;transition:all .3s;
}
.footer-social a:hover{
    background:var(--color-accent);color:#fff;transform:translateY(-3px);
}
.footer-col h4{
    color:#fff;font-size:16px;font-weight:700;margin-bottom:18px;letter-spacing:1px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{
    color:rgba(255,255,255,.55);font-size:14px;transition:color .3s,padding-left .3s;
}
.footer-col ul li a:hover{
    color:var(--color-accent);padding-left:6px;
}
.footer-contact li{
    color:rgba(255,255,255,.55);font-size:14px;display:flex;align-items:center;gap:10px;
}
.footer-contact i{color:var(--color-accent);width:16px;text-align:center;}
.footer-bottom{
    padding:20px 0;text-align:center;
}
.footer-bottom p{
    font-size:13px;color:rgba(255,255,255,.4);
}
.footer-bottom a{color:rgba(255,255,255,.5);}
.footer-bottom a:hover{color:var(--color-accent);}

/* ===== Bottom Bar ===== */
.bottom-bar{
    position:fixed;left:0;right:0;bottom:0;z-index:100;
    background:rgba(24,18,38,.95);
    -webkit-backdrop-filter:blur(10px);
    backdrop-filter:blur(10px);
    border-top:1px solid var(--color-accent);
    height:70px;display:flex;align-items:center;
    box-shadow:0 -6px 24px rgba(0,0,0,.2);
}
.bottom-bar-inner{
    display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;
}
.bottom-bar-text{
    color:#fff;font-size:14px;display:flex;align-items:center;gap:10px;
}
.bottom-bar-text::before{
    content:'';width:8px;height:8px;border-radius:50%;
    background:var(--color-accent);box-shadow:0 0 10px var(--color-accent);
    flex-shrink:0;
}
.bottom-bar .btn{
    padding:10px 26px;font-size:15px;
}

/* ===== Responsive ===== */
@media (max-width:1023px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
    .section{padding:64px 0;}
    .container{padding:0 16px;}
    .site-header{padding:14px 0;}
    .site-header.scrolled{padding:8px 0;}
    .main-nav{
        position:fixed;top:0;right:-100%;width:76%;
        height:100vh;background:var(--color-dark);
        flex-direction:column;justify-content:flex-start;align-items:center;
        padding:100px 32px 40px;gap:30px;
        transition:right .4s ease;
        box-shadow:-12px 0 40px rgba(0,0,0,.3);
        overflow-y:auto;
    }
    .main-nav.nav-open{right:0;}
    .main-nav ul{flex-direction:column;gap:24px;width:100%;text-align:center;}
    .main-nav ul li a{font-size:18px;}
    .main-nav .nav-cta{margin-top:16px;}
    .nav-toggle{display:block;}
    .article-hero{padding:150px 0 60px;}
    .article-hero-content h1{font-size:26px;line-height:1.35;}
    .breadcrumb{font-size:13px;padding:6px 16px;gap:6px;}
    .article-meta{gap:14px;}
    .article-meta span{font-size:13px;}
    .article-content{padding:32px 22px;border-radius:16px;}
    .article-content h2{font-size:22px;margin:32px 0 14px;}
    .article-content h3{font-size:19px;}
    .article-content p{font-size:15px;line-height:1.85;}
    .article-content img{border-radius:12px;}
    .related-grid{flex-direction:column;align-items:center;}
    .related-col{width:100%;max-width:420px;margin-bottom:0;}
    .cta-banner{padding:64px 0;}
    .cta-banner h2{font-size:24px;}
    .cta-banner p{font-size:14px;}
    .bottom-bar{height:auto;padding:12px 0;min-height:60px;}
    .bottom-bar-text{font-size:13px;}
    .bottom-bar .btn{padding:8px 18px;font-size:14px;}
    .footer-grid{grid-template-columns:1fr;gap:30px;}
    .footer-brand p{max-width:100%;}
    body{padding-bottom:70px;}
}
@media (min-width:768px) and (max-width:1023px){
    .related-col{width:calc(50% - 12px);}
}
@media (prefers-reduced-motion:reduce){
    *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
}