/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --primary-mid: #0f3460;
            --accent: #e94560;
            --accent-hover: #d63851;
            --accent-light: #ff6b6b;
            --bg: #ffffff;
            --bg-alt: #f8f9fa;
            --bg-card: #ffffff;
            --text: #2d3436;
            --text-light: #636e72;
            --text-lighter: #b2bec3;
            --border: #e0e0e0;
            --border-light: #f0f0f0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
            --radius: 12px;
            --radius-sm: 6px;
            --radius-lg: 16px;
            --transition: 0.25s ease;
            --font: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--primary);
        }
        h1 {
            font-size: 2.6rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
        }
        p {
            margin-bottom: 1rem;
        }
        p:last-child {
            margin-bottom: 0;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container--narrow {
            max-width: 840px;
        }

        /* ===== 板块间距 ===== */
        .section {
            padding: 80px 0;
        }
        .section--alt {
            background: var(--bg-alt);
        }
        .section__title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section__title h2 {
            margin-bottom: 12px;
        }
        .section__title p {
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto;
            font-size: 1.05rem;
        }

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .header__logo i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .header__logo:hover {
            color: var(--primary);
        }
        .header__nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .header__nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            padding: 6px 0;
            position: relative;
            transition: color var(--transition);
        }
        .header__nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition);
        }
        .header__nav a:hover::after,
        .header__nav a.active::after {
            width: 100%;
        }
        .header__nav a:hover {
            color: var(--accent);
        }
        .header__nav a.active {
            color: var(--accent);
        }
        .header__actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header__search {
            display: flex;
            align-items: center;
            background: var(--bg-alt);
            border-radius: 24px;
            padding: 0 14px;
            height: 40px;
            border: 1px solid var(--border-light);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .header__search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.1);
        }
        .header__search i {
            color: var(--text-lighter);
            font-size: 0.9rem;
            margin-right: 8px;
        }
        .header__search input {
            background: transparent;
            border: none;
            width: 140px;
            height: 100%;
            font-size: 0.9rem;
            color: var(--text);
        }
        .header__search input::placeholder {
            color: var(--text-lighter);
        }
        .header__cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #fff;
            padding: 10px 24px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        .header__cta:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(233, 69, 96, 0.3);
        }
        .header__toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 4px;
            background: none;
            border: none;
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 900px) {
            .header__nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 20px 24px 32px;
                gap: 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-110%);
                opacity: 0;
                transition: transform 0.35s ease, opacity 0.35s ease;
                pointer-events: none;
            }
            .header__nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .header__nav a {
                font-size: 1.05rem;
                padding: 8px 0;
            }
            .header__actions .header__nav {
                display: none;
            }
            .header__toggle {
                display: block;
            }
            .header__search input {
                width: 100px;
            }
            .header__cta {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 520px) {
            .header__search {
                display: none;
            }
            .header__logo {
                font-size: 1.1rem;
            }
            .header__logo i {
                font-size: 1.3rem;
            }
            .header__cta {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
        }

        /* ===== Hero ===== */
        .hero {
            margin-top: var(--header-h);
            min-height: 86vh;
            display: flex;
            align-items: center;
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.82) 0%, rgba(15, 52, 96, 0.72) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 60px 24px;
        }
        .hero__badge {
            display: inline-block;
            background: rgba(233, 69, 96, 0.18);
            color: #ff8a8a;
            padding: 6px 20px;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 24px;
            border: 1px solid rgba(233, 69, 96, 0.25);
        }
        .hero h1 {
            color: #fff;
            font-size: 3rem;
            line-height: 1.25;
            margin-bottom: 20px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.15rem;
            max-width: 680px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .hero__actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero__actions .btn--primary {
            background: var(--accent);
            color: #fff;
            padding: 14px 36px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .hero__actions .btn--primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(233, 69, 96, 0.35);
            color: #fff;
        }
        .hero__actions .btn--outline {
            background: transparent;
            color: #fff;
            padding: 14px 36px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .hero__actions .btn--outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
            color: #fff;
        }
        @media (max-width: 768px) {
            .hero {
                min-height: 70vh;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero__actions .btn--primary,
            .hero__actions .btn--outline {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 0.92rem;
            }
            .hero__actions {
                flex-direction: column;
                align-items: center;
            }
            .hero__actions .btn--primary,
            .hero__actions .btn--outline {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 按钮通用 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 28px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
            border: none;
        }
        .btn--primary {
            background: var(--accent);
            color: #fff;
        }
        .btn--primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(233, 69, 96, 0.3);
            color: #fff;
        }
        .btn--outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--border);
        }
        .btn--outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .btn--sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 18px;
        }

        /* ===== 优势卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .feature-card__icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: #fff;
            background: var(--primary);
        }
        .feature-card__icon.i-accent {
            background: var(--accent);
        }
        .feature-card__icon.i-mid {
            background: var(--primary-mid);
        }
        .feature-card__icon.i-light {
            background: var(--primary-light);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            color: var(--primary);
        }
        .feature-card p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.65;
        }
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
            .feature-card {
                padding: 24px 18px;
            }
        }

        /* ===== 图文区块 ===== */
        .media-block {
            display: flex;
            align-items: center;
            gap: 60px;
        }
        .media-block__image {
            flex: 0 0 50%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .media-block__image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            display: block;
        }
        .media-block__content {
            flex: 1;
        }
        .media-block__content h2 {
            margin-bottom: 16px;
        }
        .media-block__content p {
            color: var(--text-light);
            margin-bottom: 20px;
            font-size: 1rem;
        }
        .media-block__content .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }
        .media-block__content .tag-list span {
            background: var(--bg-alt);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-light);
            border: 1px solid var(--border-light);
        }
        @media (max-width: 900px) {
            .media-block {
                flex-direction: column;
                gap: 32px;
            }
            .media-block--reverse {
                flex-direction: column-reverse;
            }
            .media-block__image {
                flex: 0 0 100%;
                width: 100%;
            }
            .media-block__image img {
                height: 260px;
            }
        }
        @media (max-width: 520px) {
            .media-block__image img {
                height: 200px;
            }
        }

        /* ===== 内容列表（CMS） ===== */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .content-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .content-card__image {
            height: 180px;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .content-card__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .content-card:hover .content-card__image img {
            transform: scale(1.05);
        }
        .content-card__body {
            padding: 20px 20px 24px;
        }
        .content-card__meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-lighter);
            margin-bottom: 10px;
        }
        .content-card__meta .badge {
            background: var(--bg-alt);
            padding: 2px 12px;
            border-radius: 12px;
            font-size: 0.75rem;
            color: var(--text-light);
            border: 1px solid var(--border-light);
        }
        .content-card__title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-card__title a {
            color: inherit;
        }
        .content-card__title a:hover {
            color: var(--accent);
        }
        .content-card__summary {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-card__footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 14px;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }
        .content-card__footer .date {
            font-size: 0.8rem;
            color: var(--text-lighter);
        }
        .content-card__footer .read-more {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
        }
        .content-card__footer .read-more:hover {
            color: var(--accent-hover);
        }
        .content-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-light);
            background: var(--bg-alt);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }
        .content-empty i {
            font-size: 2.4rem;
            color: var(--text-lighter);
            margin-bottom: 16px;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 使用流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 20px 28px;
            text-align: center;
            border: 1px solid var(--border-light);
            position: relative;
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .step-card__num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 800;
            margin: 0 auto 16px;
        }
        .step-card__num.is-accent {
            background: var(--accent);
        }
        .step-card h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }
        .step-card p {
            color: var(--text-light);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .step-card .arrow {
            display: none;
        }
        @media (min-width: 1025px) {
            .step-card {
                position: relative;
            }
            .step-card:not(:last-child)::after {
                content: '→';
                position: absolute;
                right: -18px;
                top: 50%;
                transform: translateY(-50%);
                font-size: 1.6rem;
                color: var(--text-lighter);
                font-weight: 300;
            }
        }
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .step-card {
                padding: 24px 16px;
            }
        }

        /* ===== 统计数据 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(4px);
        }
        .stat-item__num {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-item__num span {
            color: var(--accent);
        }
        .stat-item__label {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .stats-section {
            background: var(--primary);
            background-image: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
        }
        .stats-section .section__title h2 {
            color: #fff;
        }
        .stats-section .section__title p {
            color: rgba(255, 255, 255, 0.7);
        }
        @media (max-width: 900px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-item__num {
                font-size: 2rem;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item__num {
                font-size: 1.6rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 20px 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }
        .faq-item__question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--primary);
            padding: 4px 0;
            user-select: none;
        }
        .faq-item__question i {
            color: var(--text-lighter);
            transition: transform 0.3s ease;
            font-size: 1.1rem;
        }
        .faq-item__question.open i {
            transform: rotate(180deg);
        }
        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item__answer.open {
            max-height: 300px;
            padding-top: 14px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
            text-align: center;
            padding: 80px 0;
        }
        .cta-section h2 {
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 32px;
            font-size: 1.05rem;
        }
        .cta-section .btn--primary {
            background: var(--accent);
            font-size: 1.05rem;
            padding: 16px 44px;
            border-radius: 28px;
        }
        .cta-section .btn--primary:hover {
            background: var(--accent-hover);
            box-shadow: 0 8px 32px rgba(233, 69, 96, 0.4);
        }
        .cta-section .btn--outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.35);
            padding: 14px 36px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .cta-section .btn--outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
            color: #fff;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer__brand .header__logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer__brand .header__logo i {
            color: var(--accent);
        }
        .footer__brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer__col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer__col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer__col a:hover {
            color: var(--accent);
        }
        .footer__bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer__bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer__bottom a:hover {
            color: var(--accent);
        }
        .footer__social {
            display: flex;
            gap: 14px;
        }
        .footer__social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            transition: background var(--transition), color var(--transition), border-color var(--transition);
        }
        .footer__social a:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        @media (max-width: 900px) {
            .footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer__brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer__bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section__title {
                margin-bottom: 32px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .container {
                padding: 0 18px;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 40px 0;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            .container {
                padding: 0 14px;
            }
        }

        /* ===== 滚动动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(28px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 文章页专用（首页不用） ===== */
        /* 保留给文章详情页使用，此处仅定义 */

/* roulang page: article */
/* ===== :root 设计变量 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fbbf24;
            --success: #10b981;
            --success-dark: #059669;
            --danger: #ef4444;
            --gray-50: #f9fafb;
            --gray-100: #f3f4f6;
            --gray-200: #e5e7eb;
            --gray-300: #d1d5db;
            --gray-400: #9ca3af;
            --gray-500: #6b7280;
            --gray-600: #4b5563;
            --gray-700: #374151;
            --gray-800: #1f2937;
            --gray-900: #111827;
            --white: #ffffff;
            --black: #000000;
            --body-bg: #ffffff;
            --body-color: #1f2937;
            --heading-color: #111827;
            --weak-text: #6b7280;
            --border-color: #e5e7eb;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 14px rgba(0,0,0,0.06);
            --shadow-lg: 0 10px 30px rgba(0,0,0,0.08);
            --shadow-xl: 0 20px 50px rgba(0,0,0,0.10);
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 70px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--body-color);
            background: var(--body-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 2px; }
        button { cursor: pointer; font-family: inherit; font-size: inherit; border: none; background: none; }
        input, textarea, select { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { color: var(--heading-color); line-height: 1.3; font-weight: 700; }
        h1 { font-size: 2.25rem; letter-spacing: -0.01em; }
        h2 { font-size: 1.75rem; letter-spacing: -0.01em; }
        h3 { font-size: 1.35rem; }
        h4 { font-size: 1.1rem; }
        p { margin-bottom: 1rem; color: var(--gray-700); }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container--narrow { max-width: 820px; }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: var(--white);
            border-bottom: 1px solid var(--gray-200);
            box-shadow: var(--shadow-sm);
            z-index: 1000;
            transition: box-shadow var(--transition);
        }
        .header.scrolled { box-shadow: var(--shadow-md); }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header__logo i { font-size: 1.5rem; color: var(--accent); }
        .header__logo:hover { color: var(--primary-dark); }
        .header__logo:focus-visible { outline: 2px solid var(--primary); outline-offset: 4px; border-radius: 4px; }

        .header__nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
            margin: 0 16px;
        }
        .header__nav a {
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--gray-600);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .header__nav a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .header__nav a.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .header__nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }

        .header__actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .header__search {
            display: flex;
            align-items: center;
            background: var(--gray-100);
            border-radius: 50px;
            padding: 6px 16px;
            gap: 8px;
            border: 1px solid transparent;
            transition: all var(--transition);
            min-width: 180px;
        }
        .header__search:focus-within {
            border-color: var(--primary);
            background: var(--white);
            box-shadow: 0 0 0 3px rgba(37,99,235,0.10);
        }
        .header__search i { color: var(--gray-400); font-size: 0.9rem; }
        .header__search input {
            border: none;
            background: transparent;
            padding: 4px 0;
            outline: none;
            width: 100%;
            color: var(--gray-800);
            font-size: 0.9rem;
        }
        .header__search input::placeholder { color: var(--gray-400); }

        .header__cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: var(--white);
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            white-space: nowrap;
            border: none;
        }
        .header__cta i { font-size: 0.95rem; }
        .header__cta:hover {
            background: var(--primary-dark);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(37,99,235,0.30);
        }
        .header__cta:active { transform: translateY(0); box-shadow: none; }

        .header__toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--gray-700);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .header__toggle:hover { background: var(--gray-100); }

        /* ===== Page Banner (文章页顶部) ===== */
        .page-banner {
            padding: 120px 0 50px;
            background: linear-gradient(135deg, var(--primary-bg) 0%, #e5eeff 100%);
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(37,99,235,0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-banner .container { position: relative; z-index: 1; }
        .page-banner__breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--gray-500);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .page-banner__breadcrumb a { color: var(--gray-500); }
        .page-banner__breadcrumb a:hover { color: var(--primary); }
        .page-banner__breadcrumb span { color: var(--gray-400); }
        .page-banner__breadcrumb .sep { color: var(--gray-300); }
        .page-banner h1 {
            font-size: 2.4rem;
            max-width: 800px;
            margin-bottom: 16px;
            color: var(--gray-900);
        }
        .page-banner__meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            font-size: 0.9rem;
            color: var(--gray-500);
        }
        .page-banner__meta i { margin-right: 6px; color: var(--primary); }
        .page-banner__meta .tag {
            display: inline-block;
            padding: 4px 14px;
            background: var(--primary);
            color: var(--white);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        /* ===== Article Content ===== */
        .article-section {
            padding: 50px 0 70px;
            background: var(--white);
        }
        .article-content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--gray-800);
        }
        .article-content h2 { margin-top: 40px; margin-bottom: 16px; font-size: 1.5rem; }
        .article-content h3 { margin-top: 32px; margin-bottom: 12px; font-size: 1.25rem; }
        .article-content p { margin-bottom: 1.25rem; }
        .article-content ul, .article-content ol {
            margin: 0 0 1.5rem 1.8rem;
        }
        .article-content ul { list-style: disc; }
        .article-content ol { list-style: decimal; }
        .article-content li { margin-bottom: 8px; color: var(--gray-700); }
        .article-content a { color: var(--primary); text-decoration: underline; }
        .article-content a:hover { color: var(--primary-dark); }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-bg);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--gray-700);
            font-style: normal;
        }
        .article-content blockquote p:last-child { margin-bottom: 0; }
        .article-content img {
            border-radius: var(--radius-md);
            margin: 24px auto;
            box-shadow: var(--shadow-md);
        }
        .article-content code {
            background: var(--gray-100);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--danger);
        }
        .article-content pre {
            background: var(--gray-900);
            color: #e5e7eb;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            font-size: 0.9rem;
            line-height: 1.6;
            margin: 24px 0;
        }
        .article-content pre code { background: none; color: inherit; padding: 0; font-size: inherit; }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found i { font-size: 4rem; color: var(--gray-300); margin-bottom: 24px; display: block; }
        .article-not-found h2 { font-size: 1.75rem; margin-bottom: 12px; }
        .article-not-found p { color: var(--gray-500); margin-bottom: 28px; font-size: 1.05rem; }
        .article-not-found .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: var(--primary);
            color: var(--white);
            border-radius: 50px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .article-not-found .btn:hover { background: var(--primary-dark); color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,0.25); }

        /* ===== CTA Section ===== */
        .article-cta {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--primary-bg) 0%, #e8f0fe 100%);
            text-align: center;
        }
        .article-cta h2 { font-size: 1.8rem; margin-bottom: 12px; }
        .article-cta p { color: var(--gray-600); max-width: 600px; margin: 0 auto 28px; font-size: 1.05rem; }
        .article-cta .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        .article-cta .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: var(--primary);
            color: var(--white);
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
        }
        .article-cta .btn-primary:hover { background: var(--primary-dark); color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(37,99,235,0.30); }
        .article-cta .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: var(--white);
            color: var(--primary);
            border: 2px solid var(--primary);
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
        }
        .article-cta .btn-secondary:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(37,99,235,0.15); }

        /* ===== Related / 相关推荐 ===== */
        .related-section {
            padding: 50px 0 60px;
            background: var(--white);
            border-top: 1px solid var(--gray-200);
        }
        .related-section .section-title {
            font-size: 1.5rem;
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-section .section-title i { color: var(--primary); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .related-card {
            background: var(--white);
            border: 1px solid var(--gray-200);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: all var(--transition);
        }
        .related-card:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .related-card .card-tag {
            display: inline-block;
            padding: 2px 12px;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .related-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
        .related-card h3 a { color: var(--gray-900); }
        .related-card h3 a:hover { color: var(--primary); }
        .related-card p { font-size: 0.9rem; color: var(--gray-500); margin-bottom: 0; }

        /* ===== Footer 完全复用首页 ===== */
        .footer {
            background: var(--gray-900);
            color: rgba(255,255,255,0.75);
            padding: 60px 0 0;
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer__brand .header__logo {
            color: var(--white);
            margin-bottom: 16px;
            font-size: 1.3rem;
        }
        .footer__brand .header__logo i { color: var(--accent); }
        .footer__brand p { font-size: 0.92rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 360px; }
        .footer__col h4 {
            color: var(--white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer__col a {
            display: block;
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            padding: 5px 0;
            transition: all var(--transition);
        }
        .footer__col a:hover { color: var(--accent); padding-left: 4px; }
        .footer__social {
            display: flex;
            gap: 14px;
            margin-top: 4px;
        }
        .footer__social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.6);
            font-size: 1.1rem;
            transition: all var(--transition);
            padding: 0;
        }
        .footer__social a:hover {
            background: var(--primary);
            color: var(--white);
            transform: translateY(-2px);
            padding: 0;
        }
        .footer__bottom {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
        }
        .footer__bottom span { opacity: 0.8; }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .page-banner h1 { font-size: 2rem; }
        }

        @media (max-width: 820px) {
            .header__search { min-width: 140px; }
            .header__nav a { padding: 6px 14px; font-size: 0.85rem; }
            .header__cta { padding: 8px 16px; font-size: 0.8rem; }
            .page-banner h1 { font-size: 1.7rem; }
            .article-content { font-size: 1rem; }
        }

        @media (max-width: 768px) {
            .header__nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: var(--white);
                border-bottom: 1px solid var(--gray-200);
                box-shadow: var(--shadow-lg);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                margin: 0;
            }
            .header__nav.open { display: flex; }
            .header__nav a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .header__nav a.active::after { display: none; }
            .header__toggle { display: block; }
            .header__search { min-width: 120px; }
            .header__cta span { display: none; }
            .page-banner { padding: 100px 0 36px; }
            .page-banner h1 { font-size: 1.5rem; }
            .page-banner__meta { gap: 12px; font-size: 0.8rem; }
            .footer__grid { grid-template-columns: 1fr; gap: 28px; }
            .footer__brand p { max-width: 100%; }
            .footer__bottom { flex-direction: column; align-items: center; text-align: center; }
            .related-grid { grid-template-columns: 1fr; }
            .article-cta h2 { font-size: 1.4rem; }
        }

        @media (max-width: 520px) {
            :root { --header-height: 60px; }
            .container { padding: 0 16px; }
            .header__logo { font-size: 1.1rem; }
            .header__logo i { font-size: 1.2rem; }
            .header__search { min-width: 80px; padding: 4px 12px; }
            .header__search input { font-size: 0.8rem; }
            .header__cta { padding: 6px 14px; font-size: 0.75rem; gap: 4px; }
            .header__cta i { font-size: 0.8rem; }
            .page-banner { padding: 80px 0 28px; }
            .page-banner h1 { font-size: 1.25rem; }
            .page-banner__breadcrumb { font-size: 0.75rem; }
            .article-section { padding: 30px 0 50px; }
            .article-content { font-size: 0.95rem; }
            .article-content h2 { font-size: 1.25rem; }
            .article-content h3 { font-size: 1.1rem; }
            .article-not-found { padding: 50px 16px; }
            .article-not-found i { font-size: 3rem; }
            .article-cta { padding: 40px 0; }
            .article-cta .btn-primary,
            .article-cta .btn-secondary { width: 100%; justify-content: center; }
            .related-section { padding: 30px 0 40px; }
            .related-section .section-title { font-size: 1.2rem; }
        }

        /* ===== 简易动画 ===== */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .page-banner, .article-section, .article-cta, .related-section {
            animation: fadeInUp 0.5s ease-out both;
        }
        .article-section { animation-delay: 0.1s; }
        .article-cta { animation-delay: 0.2s; }
        .related-section { animation-delay: 0.3s; }

        /* ===== 结构化数据不可见 ===== */
        .hidden-structured { display: none; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #6c3cf1;
            --primary-dark: #5228c9;
            --primary-light: #8b6cf7;
            --primary-gradient: linear-gradient(135deg, #6c3cf1 0%, #a855f7 100%);
            --secondary: #f59e0b;
            --secondary-light: #fbbf24;
            --accent: #ec4899;
            --bg-light: #f8f7fc;
            --bg-white: #ffffff;
            --bg-dark: #0f0a1a;
            --bg-card: #ffffff;
            --text-primary: #1a0a2e;
            --text-secondary: #4a3f5c;
            --text-muted: #8a7f9e;
            --text-light: #b8aed0;
            --text-white: #ffffff;
            --border-color: #e8e3f0;
            --border-light: #f0ecf6;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(108, 60, 241, 0.06);
            --shadow-md: 0 8px 30px rgba(108, 60, 241, 0.10);
            --shadow-lg: 0 20px 60px rgba(108, 60, 241, 0.15);
            --shadow-xl: 0 40px 80px rgba(108, 60, 241, 0.20);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

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

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Section Spacing ===== */
        .section {
            padding: 80px 0;
        }

        .section__label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(108, 60, 241, 0.08);
            padding: 4px 16px;
            border-radius: 50px;
            margin-bottom: 12px;
        }

        .section__title {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .section__sub {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
        }

        .section__title--center,
        .section__sub--center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section__title {
                font-size: 1.7rem;
            }
            .section__sub {
                font-size: 1rem;
            }
        }

        /* ===== Header & Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .header__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .header__logo i {
            font-size: 1.6rem;
            color: var(--primary);
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .header__nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .header__nav a {
            padding: 8px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 50px;
            transition: var(--transition);
            position: relative;
        }

        .header__nav a:hover {
            color: var(--primary);
            background: rgba(108, 60, 241, 0.06);
        }

        .header__nav a.active {
            color: var(--text-white);
            background: var(--primary-gradient);
            box-shadow: 0 4px 16px rgba(108, 60, 241, 0.30);
        }

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

        .header__search {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0 16px;
            height: 40px;
            min-width: 180px;
            transition: var(--transition);
        }

        .header__search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(108, 60, 241, 0.10);
        }

        .header__search i {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-right: 8px;
        }

        .header__search input {
            flex: 1;
            background: none;
            border: none;
            font-size: 0.85rem;
            color: var(--text-primary);
            height: 100%;
        }

        .header__search input::placeholder {
            color: var(--text-muted);
        }

        .header__cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-white);
            background: var(--primary-gradient);
            border-radius: 50px;
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(108, 60, 241, 0.25);
            transition: var(--transition);
        }

        .header__cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(108, 60, 241, 0.35);
        }

        .header__cta:active {
            transform: translateY(0);
        }

        .header__toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--text-primary);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

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

        @media (max-width: 900px) {
            .header__search {
                min-width: 120px;
            }
            .header__search input {
                width: 80px;
            }
            .header__cta {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .header__nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px;
                gap: 4px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
            }
            .header__nav.open {
                display: flex;
            }
            .header__nav a {
                width: 100%;
                text-align: center;
                padding: 12px 18px;
            }
            .header__toggle {
                display: block;
            }
            .header__search {
                min-width: 100px;
            }
            .header__search input {
                width: 60px;
            }
        }

        @media (max-width: 520px) {
            .header__cta span {
                display: none;
            }
            .header__search {
                min-width: 40px;
                padding: 0 10px;
            }
            .header__search input {
                width: 40px;
            }
            .header__logo {
                font-size: 1.05rem;
            }
        }

        /* ===== Hero ===== */
        .hero {
            padding: 120px 0 80px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 10, 26, 0.88) 0%, rgba(108, 60, 241, 0.50) 100%);
            z-index: 1;
        }

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

        .hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-light);
            margin-bottom: 24px;
        }

        .hero__badge i {
            color: var(--secondary);
            font-size: 0.9rem;
        }

        .hero__title {
            font-size: 3.2rem;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 20px;
            line-height: 1.2;
            letter-spacing: -0.5px;
        }

        .hero__title span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero__desc {
            font-size: 1.15rem;
            color: var(--text-light);
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

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

        .hero__actions .btn-primary {
            padding: 16px 40px;
            font-size: 1rem;
            font-weight: 700;
            border-radius: 50px;
            background: var(--primary-gradient);
            color: var(--text-white);
            box-shadow: 0 8px 32px rgba(108, 60, 241, 0.35);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .hero__actions .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 48px rgba(108, 60, 241, 0.45);
        }

        .hero__actions .btn-secondary {
            padding: 16px 40px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.10);
            border: 1px solid rgba(255, 255, 255, 0.20);
            color: var(--text-white);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            backdrop-filter: blur(4px);
        }

        .hero__actions .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.18);
            border-color: rgba(255, 255, 255, 0.30);
        }

        .hero__stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px;
            margin-top: 48px;
            padding-top: 36px;
            border-top: 1px solid rgba(255, 255, 255, 0.10);
        }

        .hero__stat-item {
            text-align: center;
        }

        .hero__stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
        }

        .hero__stat-item .num span {
            color: var(--secondary);
        }

        .hero__stat-item .label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .hero {
                padding: 100px 0 56px;
                min-height: 400px;
            }
            .hero__title {
                font-size: 2.2rem;
            }
            .hero__desc {
                font-size: 1rem;
            }
            .hero__actions .btn-primary,
            .hero__actions .btn-secondary {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
            .hero__stats {
                gap: 24px;
            }
            .hero__stat-item .num {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .hero__title {
                font-size: 1.7rem;
            }
            .hero__stats {
                gap: 16px;
            }
            .hero__stat-item {
                flex: 1 0 40%;
            }
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--primary-gradient);
            color: var(--text-white);
            box-shadow: 0 4px 16px rgba(108, 60, 241, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(108, 60, 241, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
        }

        /* ===== Guide Intro ===== */
        .guide-intro {
            background: var(--bg-white);
        }

        .guide-intro__grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .guide-intro__image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .guide-intro__image img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            transition: var(--transition);
        }

        .guide-intro__image:hover img {
            transform: scale(1.03);
        }

        .guide-intro__image .play-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(0, 0, 0, 0.70);
            backdrop-filter: blur(8px);
            padding: 8px 18px;
            border-radius: 50px;
            color: var(--text-white);
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.10);
        }

        .guide-intro__content .section__title {
            font-size: 2rem;
        }

        .guide-intro__content p {
            color: var(--text-secondary);
            margin-bottom: 20px;
            font-size: 1.05rem;
            line-height: 1.8;
        }

        .guide-intro__features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 24px;
        }

        .guide-intro__features li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding: 8px 0;
        }

        .guide-intro__features li i {
            color: var(--primary);
            font-size: 1rem;
            width: 20px;
            text-align: center;
        }

        @media (max-width: 900px) {
            .guide-intro__grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .guide-intro__image img {
                height: 280px;
            }
            .guide-intro__features {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 520px) {
            .guide-intro__features {
                grid-template-columns: 1fr;
            }
            .guide-intro__content .section__title {
                font-size: 1.5rem;
            }
        }

        /* ===== Core Modules ===== */
        .modules {
            background: var(--bg-light);
        }

        .modules__grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .module-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
        }

        .module-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }

        .module-card__icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(108, 60, 241, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .module-card:hover .module-card__icon {
            background: var(--primary-gradient);
            color: var(--text-white);
            box-shadow: 0 8px 24px rgba(108, 60, 241, 0.25);
        }

        .module-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .module-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        @media (max-width: 900px) {
            .modules__grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .modules__grid {
                grid-template-columns: 1fr;
            }
            .module-card {
                padding: 24px 18px;
            }
        }

        /* ===== Process / Steps ===== */
        .process {
            background: var(--bg-white);
        }

        .process__grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
            margin-top: 48px;
            position: relative;
        }

        .process__grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 60px;
            right: 60px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary));
            opacity: 0.20;
            z-index: 0;
        }

        .step-card {
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 4px;
        }

        .step-card__num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: var(--text-white);
            font-size: 1.2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: 0 8px 24px rgba(108, 60, 241, 0.25);
            position: relative;
        }

        .step-card:nth-child(even) .step-card__num {
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.25);
        }

        .step-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .step-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        @media (max-width: 900px) {
            .process__grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
            .process__grid::before {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .process__grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* ===== Scenarios ===== */
        .scenarios {
            background: var(--bg-light);
        }

        .scenarios__grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .scenario-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .scenario-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }

        .scenario-card__img {
            height: 200px;
            overflow: hidden;
        }

        .scenario-card__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .scenario-card:hover .scenario-card__img img {
            transform: scale(1.05);
        }

        .scenario-card__body {
            padding: 24px 20px 26px;
        }

        .scenario-card__body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .scenario-card__body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .scenario-card__tag {
            display: inline-block;
            padding: 2px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(108, 60, 241, 0.08);
            color: var(--primary);
            margin-bottom: 12px;
        }

        @media (max-width: 768px) {
            .scenarios__grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .scenarios__grid {
                grid-template-columns: 1fr;
            }
        }

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

        .faq__list {
            max-width: 800px;
            margin: 48px auto 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
        }

        .faq-item__question {
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            gap: 16px;
            user-select: none;
            transition: var(--transition);
        }

        .faq-item__question i {
            color: var(--primary);
            font-size: 1rem;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-item__question i {
            transform: rotate(180deg);
        }

        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .faq-item.active .faq-item__answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        @media (max-width: 520px) {
            .faq-item__question {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .faq-item__answer {
                padding: 0 18px;
                font-size: 0.9rem;
            }
            .faq-item.active .faq-item__answer {
                padding: 0 18px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            padding: 80px 0;
        }

        .cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 10, 26, 0.90) 0%, rgba(108, 60, 241, 0.55) 100%);
            z-index: 1;
        }

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

        .cta__title {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .cta__desc {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

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

        .cta__actions .btn-primary {
            padding: 18px 44px;
            font-size: 1.05rem;
            font-weight: 700;
            background: var(--primary-gradient);
            color: var(--text-white);
            border-radius: 50px;
            box-shadow: 0 8px 32px rgba(108, 60, 241, 0.35);
            transition: var(--transition);
        }

        .cta__actions .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 48px rgba(108, 60, 241, 0.45);
        }

        .cta__actions .btn-outline-light {
            padding: 18px 44px;
            font-size: 1.05rem;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.20);
            color: var(--text-white);
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }

        .cta__actions .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.30);
        }

        @media (max-width: 768px) {
            .cta {
                padding: 56px 0;
            }
            .cta__title {
                font-size: 1.7rem;
            }
            .cta__desc {
                font-size: 1rem;
            }
            .cta__actions .btn-primary,
            .cta__actions .btn-outline-light {
                padding: 14px 32px;
                font-size: 0.95rem;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 60px 0 0;
        }

        .footer__grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer__brand .header__logo {
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .footer__brand .header__logo i {
            -webkit-text-fill-color: var(--primary);
        }

        .footer__brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: var(--text-light);
            max-width: 320px;
        }

        .footer__col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer__col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--primary-gradient);
            border-radius: 2px;
        }

        .footer__col a {
            display: block;
            font-size: 0.88rem;
            color: var(--text-light);
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer__col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .footer__social {
            display: flex;
            gap: 12px;
            margin-top: 8px;
        }

        .footer__social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--text-light);
            padding: 0;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer__social a:hover {
            background: var(--primary-gradient);
            color: var(--text-white);
            border-color: transparent;
            padding: 0;
            transform: translateY(-3px);
        }

        .footer__bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
        }

        @media (max-width: 768px) {
            .footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer__brand {
                grid-column: 1 / -1;
            }
            .footer__bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .footer__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ===== Responsive Helpers ===== */
        @media (max-width: 768px) {
            .hide-mobile {
                display: none !important;
            }
        }

        @media (min-width: 769px) {
            .hide-desktop {
                display: none !important;
            }
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }

        .animate-in-delay-1 {
            animation-delay: 0.1s;
        }
        .animate-in-delay-2 {
            animation-delay: 0.2s;
        }
        .animate-in-delay-3 {
            animation-delay: 0.3s;
        }
        .animate-in-delay-4 {
            animation-delay: 0.4s;
        }

        /* ===== Focus & Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== Selection ===== */
        ::selection {
            background: var(--primary);
            color: var(--text-white);
        }