/* roulang page: index */
/* ========== Design Variables ========== */
:root {
    --primary: #0d1b2e;
    --primary-light: #1b2d47;
    --accent: #f59e0b;
    --accent-hover: #d97706;
    --accent-soft: rgba(245, 158, 11, 0.12);
    --bg: #f6f7fb;
    --bg-white: #ffffff;
    --bg-dark: #0d1b2e;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border: #e8ecf1;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 8px rgba(15, 30, 50, 0.06);
    --shadow-md: 0 8px 30px rgba(15, 30, 50, 0.08);
    --shadow-lg: 0 20px 50px rgba(15, 30, 50, 0.14);
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --container: 1200px;
}

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

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

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
    font-size: 16px;
    line-height: 1.65;
    color: var(--text-main);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
    color: var(--accent);
}

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

ul {
    list-style: none;
}

/* ========== Container ========== */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    line-height: 1.2;
}

.btn-accent {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
}

.btn-accent:hover {
    background: var(--accent-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(245, 158, 11, 0.4);
}

.btn-outline {
    border: 2px solid rgba(255, 255, 255, 0.7);
    color: #fff;
    background: transparent;
}

.btn-outline:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    transform: translateY(-2px);
}

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

.btn-dark:hover {
    background: var(--primary-light);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========== Header / Nav ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 12px rgba(15, 30, 50, 0.04);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}

.logo {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 0.5px;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.logo i {
    color: var(--accent);
    font-size: 22px;
}

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

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

.main-nav a {
    display: flex;
    align-items: center;
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-main);
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
}

.main-nav a:hover {
    color: var(--accent);
    background: var(--accent-soft);
}

.main-nav a.active {
    color: var(--accent);
    font-weight: 600;
    background: var(--accent-soft);
}

.main-nav a.active::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    border-radius: 3px;
    background: var(--accent);
}

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

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 6px 6px 6px 16px;
    width: 220px;
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
    background: #fff;
}

.search-box input {
    width: 100%;
    font-size: 14px;
    color: var(--text-main);
}

.search-box input::placeholder {
    color: var(--text-light);
}

.search-box button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    cursor: pointer;
    font-size: 13px;
    transition: var(--transition);
    flex-shrink: 0;
}

.search-box button:hover {
    background: var(--accent-hover);
}

.header-actions .btn {
    padding: 10px 24px;
    font-size: 14px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    background: transparent;
    border-radius: 8px;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: var(--text-main);
    transition: var(--transition);
}

/* ========== Hero ========== */
.hero {
    position: relative;
    min-height: 620px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(13, 27, 46, 0.92) 0%, rgba(13, 27, 46, 0.75) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    color: #fff;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 100px 0;
    max-width: 720px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.4);
    color: #fbbf24;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 28px;
    letter-spacing: 0.5px;
}

.hero-badge i {
    font-size: 14px;
}

.hero h1 {
    font-size: 52px;
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

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

.hero p {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 36px;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 36px;
    margin-top: 56px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero-stat .num {
    font-size: 32px;
    font-weight: 800;
    color: var(--accent);
    font-family: "DIN Alternate", "Arial", sans-serif;
}

.hero-stat .label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
}

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

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

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 56px;
}

.section-header .subtitle {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
    padding: 6px 16px;
    border-radius: 50px;
    background: var(--accent-soft);
}

.section-header h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 14px;
    line-height: 1.3;
}

.section-header p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ========== Feature Cards ========== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    text-align: left;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), #fbbf24);
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
    border-color: rgba(245, 158, 11, 0.3);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--accent-soft);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

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

/* ========== Category Cards ========== */
.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.category-card {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.category-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
    border-color: rgba(245, 158, 11, 0.3);
}

.category-cover {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.category-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.category-card:hover .category-cover img {
    transform: scale(1.06);
}

.category-cover::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 50%, rgba(13, 27, 46, 0.6) 100%);
}

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

.category-tag {
    display: inline-block;
    padding: 4px 14px;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-soft);
    border-radius: 50px;
    align-self: flex-start;
    margin-bottom: 12px;
}

.category-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.category-body p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    flex: 1;
    margin-bottom: 16px;
}

.category-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    transition: var(--transition);
}

.category-link:hover {
    gap: 10px;
    color: var(--accent-hover);
}

/* ========== Stats ========== */
.stats-section {
    background: linear-gradient(135deg, var(--primary) 0%, #142b47 100%);
    color: #fff;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    opacity: 0.2;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
    z-index: 2;
}

.stat-card {
    text-align: center;
    padding: 24px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(8px);
    transition: var(--transition);
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-4px);
}

.stat-card .number {
    font-size: 44px;
    font-weight: 800;
    color: var(--accent);
    font-family: "DIN Alternate", "Arial", sans-serif;
    line-height: 1.2;
    margin-bottom: 8px;
}

.stat-card .label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 1px;
}

/* ========== News / Latest ========== */
.news-section {
    background: var(--bg);
}

.news-wrapper {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 40px;
    align-items: start;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-item {
    display: block;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px 28px;
    transition: var(--transition);
    position: relative;
}

.news-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
    border-color: rgba(245, 158, 11, 0.3);
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.news-meta .tag {
    display: inline-block;
    padding: 3px 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-soft);
    border-radius: 50px;
}

.news-meta time {
    font-size: 13px;
    color: var(--text-light);
}

.news-item h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.5;
    margin-bottom: 6px;
}

.news-item p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.empty-tip {
    background: #fff;
    border: 1px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 48px;
    text-align: center;
    color: var(--text-muted);
    font-size: 15px;
}

.news-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}

.sidebar-card:hover {
    box-shadow: var(--shadow-md);
}

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

.sidebar-card .card-body {
    padding: 20px;
}

.sidebar-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.sidebar-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

.sidebar-card .more-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 8px;
}

/* ========== Steps / Flow ========== */
.steps-section {
    background: var(--bg-white);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.step-card {
    text-align: center;
    padding: 36px 20px;
    position: relative;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 22px;
    font-weight: 800;
    position: relative;
    z-index: 2;
}

.step-card::before {
    content: "";
    position: absolute;
    top: 40px;
    left: calc(50% + 40px);
    width: calc(100% - 80px);
    height: 2px;
    background: var(--border);
    z-index: 1;
}

.step-card:last-child::before {
    display: none;
}

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

.step-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

.step-line {
    width: 40px;
    height: 2px;
    background: var(--accent);
    margin: 0 auto;
    border-radius: 2px;
}

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

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

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

.faq-item:hover {
    border-color: rgba(245, 158, 11, 0.25);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 28px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    transition: var(--transition);
    user-select: none;
}

.faq-question i {
    color: var(--accent);
    font-size: 16px;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(45deg);
}

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

.faq-answer-inner {
    padding: 0 28px 24px;
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
    border-top: 1px solid var(--border);
    margin: 0 28px;
    padding: 0 0 24px;
}

/* ========== CTA ========== */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(13, 27, 46, 0.94) 0%, rgba(13, 27, 46, 0.8) 100%), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    position: relative;
    text-align: center;
    color: #fff;
}

.cta-section h2 {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.cta-section p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    max-width: 560px;
    margin: 0 auto 36px;
}

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

/* ========== Footer ========== */
.site-footer {
    background: var(--primary);
    color: rgba(255, 255, 255, 0.8);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-3px);
}

.footer-col h3 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
}

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

.footer-col a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-info {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 2;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 42px;
    }

    .main-nav a {
        padding: 8px 12px;
        font-size: 14px;
    }

    .feature-grid,
    .category-grid {
        gap: 20px;
    }

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

    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .header-inner {
        height: 64px;
    }

    .nav-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
        padding: 12px 24px 20px;
        display: none;
        flex-direction: column;
        align-items: flex-start;
        z-index: 999;
    }

    .main-nav.open {
        display: flex;
    }

    .main-nav ul {
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .main-nav a {
        width: 100%;
        padding: 10px 12px;
    }

    .header-actions .search-box {
        display: none;
    }

    .header-actions .btn {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: 60px 0;
    }

    .hero h1 {
        font-size: 36px;
    }

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

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .hero-stat .num {
        font-size: 26px;
    }

    .section {
        padding: 60px 0;
    }

    .section-header h2 {
        font-size: 30px;
    }

    .feature-grid,
    .category-grid,
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .stat-card {
        padding: 20px;
    }

    .stat-card .number {
        font-size: 36px;
    }

    .steps-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .step-card::before {
        display: none;
    }

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

    .cta-section {
        padding: 60px 0;
    }

    .cta-section h2 {
        font-size: 30px;
    }
}

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

    .hero h1 {
        font-size: 28px;
    }

    .hero p {
        font-size: 15px;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .section-header h2 {
        font-size: 26px;
    }

    .feature-card {
        padding: 28px 20px;
    }

    .news-item {
        padding: 18px;
    }

    .news-item h3 {
        font-size: 15px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }

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

/* roulang page: article */
:root {
  --primary: #0e1b2c;
  --primary-light: #16273e;
  --accent: #ff6b35;
  --accent-hover: #e8582a;
  --bg: #f4f6fa;
  --card: #ffffff;
  --text: #1a2333;
  --text-weak: #5b6b7c;
  --border: #e3e8ef;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 4px 20px rgba(14, 27, 44, 0.06);
  --shadow-hover: 0 10px 30px rgba(14, 27, 44, 0.12);
  --container: 1200px;
  --spacer: 80px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
:focus-visible { outline: 3px solid rgba(255,107,53,0.4); outline-offset: 2px; }
::selection { background: rgba(255,107,53,0.18); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== Header ===== */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(14, 27, 44, 0.04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
  line-height: 1.2;
}
.logo i { color: var(--accent); font-size: 24px; }
.main-nav ul { display: flex; list-style: none; gap: 6px; }
.main-nav a {
  display: block;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-weak);
  transition: all 0.2s ease;
}
.main-nav a:hover { color: var(--primary); background: #f0f3f8; }
.main-nav a.active {
  color: var(--accent);
  background: rgba(255,107,53,0.08);
  font-weight: 600;
}
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-box {
  display: flex;
  align-items: center;
  background: var(--bg);
  border-radius: 20px;
  padding: 5px 14px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}
.search-box:focus-within { border-color: var(--accent); background: #fff; }
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  width: 110px;
  color: var(--text);
}
.search-box button {
  background: transparent;
  border: none;
  color: var(--text-weak);
  cursor: pointer;
  font-size: 14px;
  transition: color 0.2s;
}
.search-box button:hover { color: var(--accent); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 20px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 15px;
  line-height: 1.4;
}
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(255,107,53,0.3);
}
.btn-outline {
  background: transparent;
  border: 2px solid #fff;
  color: #fff;
}
.btn-outline:hover { background: #fff; color: var(--accent); transform: translateY(-2px); }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all 0.2s;
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  padding: 88px 0 72px;
  background-size: cover;
  background-position: center;
  color: #fff;
}
.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(14,27,44,0.94) 0%, rgba(14,27,44,0.78) 55%, rgba(255,107,53,0.28) 100%);
}
.page-banner .container { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 22px;
}
.breadcrumb a { color: rgba(255,255,255,0.85); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--accent); }
.page-banner h1 {
  font-size: 34px;
  line-height: 1.35;
  max-width: 880px;
  margin-bottom: 18px;
  font-weight: 800;
  letter-spacing: 0.5px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  color: rgba(255,255,255,0.8);
}
.article-meta .tag {
  background: rgba(255,107,53,0.92);
  padding: 4px 14px;
  border-radius: 16px;
  color: #fff;
  font-weight: 600;
  font-size: 13px;
}
.article-meta i { margin-right: 5px; opacity: 0.85; }

/* ===== Article Body ===== */
.article-section { padding: 60px 0; }
.article-layout { max-width: 920px; }
.article-main {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 48px 56px;
}
.article-content {
  font-size: 16px;
  line-height: 1.95;
  color: #2a3441;
}
.article-content p { margin-bottom: 20px; }
.article-content h2 {
  font-size: 24px;
  color: var(--primary);
  margin: 36px 0 16px;
  font-weight: 700;
}
.article-content h3 {
  font-size: 20px;
  color: var(--primary);
  margin: 28px 0 12px;
  font-weight: 700;
}
.article-content ul,
.article-content ol {
  margin: 0 0 20px 24px;
}
.article-content li { margin-bottom: 8px; }
.article-content img { border-radius: 12px; margin: 24px 0; width: 100%; height: auto; }
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: #fff7f3;
  padding: 14px 20px;
  border-radius: 0 10px 10px 0;
  margin: 24px 0;
  color: var(--text-weak);
}
.article-content a { color: var(--accent); border-bottom: 1px solid rgba(255,107,53,0.3); transition: all 0.2s; }
.article-content a:hover { border-bottom-color: var(--accent); }
.not-found {
  text-align: center;
  padding: 60px 20px;
}
.not-found i {
  font-size: 48px;
  color: var(--accent);
  margin-bottom: 20px;
}
.not-found h2 { font-size: 28px; color: var(--primary); margin-bottom: 12px; }
.not-found p { color: var(--text-weak); margin-bottom: 28px; font-size: 15px; }

/* ===== Section Head ===== */
.section-head {
  text-align: center;
  margin-bottom: 44px;
}
.section-head h2 {
  font-size: 32px;
  color: var(--primary);
  font-weight: 800;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}
.section-head p { color: var(--text-weak); font-size: 15px; max-width: 640px; margin: 0 auto; }

/* ===== Related ===== */
.related-section { padding: 0 0 70px; }
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.info-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}
.info-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}
.info-card img {
  height: 180px;
  width: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.info-card:hover img { transform: scale(1.03); }
.card-body { padding: 22px 22px 26px; }
.card-body .tag {
  display: inline-block;
  background: rgba(255,107,53,0.12);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 14px;
}
.card-body h3 {
  font-size: 18px;
  margin: 12px 0 10px;
  color: var(--primary);
  line-height: 1.5;
  font-weight: 700;
}
.card-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.65;
}

/* ===== Feature Band ===== */
.feature-band {
  background: var(--primary);
  padding: 74px 0;
  position: relative;
  overflow: hidden;
}
.feature-band::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,107,53,0.18), transparent 70%);
}
.feature-band .container { position: relative; z-index: 2; }
.feature-band .section-head h2 { color: #fff; }
.feature-band .section-head p { color: rgba(255,255,255,0.7); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.feature-item {
  text-align: center;
  padding: 34px 26px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.08);
  transition: all 0.3s ease;
}
.feature-item:hover {
  background: rgba(255,255,255,0.09);
  transform: translateY(-4px);
}
.feature-item i {
  font-size: 34px;
  color: var(--accent);
  margin-bottom: 18px;
}
.feature-item h3 { color: #fff; font-size: 20px; margin-bottom: 10px; font-weight: 700; }
.feature-item p { color: rgba(255,255,255,0.7); font-size: 14px; line-height: 1.7; }

/* ===== FAQ ===== */
.faq-section { padding: 70px 0; }
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.2s ease;
}
.faq-item:hover { box-shadow: var(--shadow); border-color: #d7dee8; }
.faq-item summary {
  padding: 18px 24px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--primary);
  font-size: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--text-weak);
  font-size: 13px;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}
.faq-item[open] summary { border-bottom: 1px solid var(--border); color: var(--accent); }
.faq-item[open] summary::after { transform: rotate(180deg); color: var(--accent); }
.faq-item p { padding: 16px 24px 22px; color: var(--text-weak); font-size: 15px; line-height: 1.8; }

/* ===== CTA ===== */
.cta-section { padding-bottom: 80px; }
.cta-box {
  background: linear-gradient(120deg, #ff6b35, #ff8f5e);
  border-radius: 24px;
  padding: 60px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  top: -60px;
  left: -40px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
}
.cta-box::after {
  content: "";
  position: absolute;
  bottom: -80px;
  right: -50px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(14,27,44,0.08);
}
.cta-box h2 {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 14px;
  position: relative;
  z-index: 2;
}
.cta-box p {
  color: rgba(255,255,255,0.92);
  margin-bottom: 30px;
  font-size: 16px;
  position: relative;
  z-index: 2;
}
.cta-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary);
  color: rgba(255,255,255,0.75);
  padding: 70px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 44px;
}
.footer-brand .logo { color: #fff; margin-bottom: 16px; font-size: 20px; }
.footer-brand p { font-size: 14px; line-height: 1.85; max-width: 360px; }
.footer-social { display: flex; gap: 12px; margin-top: 22px; }
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.8);
  transition: all 0.2s;
}
.footer-social a:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }
.footer-col h3 { color: #fff; font-size: 18px; margin-bottom: 18px; font-weight: 700; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: rgba(255,255,255,0.7); font-size: 14px; transition: all 0.2s; }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-info p { font-size: 14px; margin-bottom: 8px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .page-banner h1 { font-size: 30px; }
}
@media (max-width: 768px) {
  .header-inner { position: relative; }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-top: 1px solid var(--border);
    box-shadow: 0 10px 24px rgba(14,27,44,0.08);
    padding: 12px 24px 18px;
    display: none;
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 4px; }
  .main-nav a { padding: 10px 16px; }
  .nav-toggle { display: flex; }
  .search-box { display: none; }
  .page-banner { padding: 70px 0 54px; }
  .page-banner h1 { font-size: 26px; }
  .article-main { padding: 30px 26px; }
  .card-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-box { padding: 44px 24px; }
  .section-head h2 { font-size: 26px; }
  .faq-item summary { font-size: 15px; padding: 16px 18px; }
  .faq-item p { padding: 14px 18px 18px; }
}
@media (max-width: 520px) {
  .header-actions .btn { display: none; }
  .header-inner { height: 64px; }
  .logo { font-size: 16px; }
  .logo i { font-size: 20px; }
  .page-banner { padding: 56px 0 44px; }
  .page-banner h1 { font-size: 22px; }
  .article-main { padding: 22px 18px; }
  .article-content { font-size: 15px; }
  .cta-box h2 { font-size: 24px; }
  .cta-box p { font-size: 14px; }
  .section-head h2 { font-size: 24px; }
  .card-body h3 { font-size: 17px; }
}

/* roulang page: category1 */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --secondary: #0f172a;
            --accent: #ffb703;
            --accent-light: #fca311;
            --bg-light: #f8fafc;
            --bg-dark: #0f172a;
            --text-dark: #1e293b;
            --text-muted: #64748b;
            --white: #ffffff;
            --border: #e2e8f0;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.1);
            --shadow-md: 0 12px 36px rgba(0, 0, 0, 0.08);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.05);
            --transition: .3s ease;
            --nav-height: 78px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text-dark);
            line-height: 1.7;
            background: var(--bg-light);
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 90px 0;
        }
        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(230, 57, 70, .08);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 100px;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: clamp(28px, 3.6vw, 42px);
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-dark);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .section-desc {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
        }
        .section-header {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            margin-bottom: 48px;
        }
        .section-header.center {
            align-items: center;
            text-align: center;
        }
        .section-header.center .section-desc {
            text-align: center;
        }
        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 24px rgba(0, 0, 0, .04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--secondary);
            white-space: nowrap;
            letter-spacing: -0.4px;
        }
        .logo i {
            color: var(--primary);
            font-size: 26px;
        }
        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .main-nav a {
            display: block;
            padding: 10px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 100px;
            transition: all .25s ease;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: rgba(230, 57, 70, .06);
        }
        .main-nav a.active {
            color: var(--primary);
            background: rgba(230, 57, 70, .1);
            font-weight: 600;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 100px;
            padding: 0 6px 0 16px;
            height: 40px;
            width: 220px;
            transition: border-color .25s ease, box-shadow .25s ease;
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, .12);
        }
        .search-box input {
            flex: 1;
            background: transparent;
            font-size: 14px;
            color: var(--text-dark);
        }
        .search-box input::placeholder {
            color: #94a3b8;
        }
        .search-box button {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: background .25s ease, color .25s ease;
        }
        .search-box button:hover {
            color: var(--primary);
            background: rgba(230, 57, 70, .08);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 26px;
            border-radius: 100px;
            transition: all .3s ease;
            white-space: nowrap;
            border: 2px solid transparent;
        }
        .btn-accent {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 6px 20px rgba(230, 57, 70, .3);
        }
        .btn-accent:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(230, 57, 70, .35);
        }
        .btn-outline {
            border-color: rgba(255, 255, 255, .6);
            color: var(--white);
            background: transparent;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, .15);
            border-color: var(--white);
            transform: translateY(-2px);
        }
        .btn-light {
            background: var(--white);
            color: var(--primary);
            box-shadow: 0 6px 20px rgba(0, 0, 0, .1);
        }
        .btn-light:hover {
            background: #f1f5f9;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0, 0, 0, .12);
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--white);
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-dark);
            border-radius: 4px;
            transition: all .3s ease;
        }
        /* Hero */
        .page-hero {
            position: relative;
            padding: 108px 0 100px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 23, 42, .94), rgba(15, 23, 42, .72) 55%, rgba(230, 57, 70, .4));
        }
        .page-hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
        }
        .page-hero .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 183, 3, .15);
            color: var(--accent);
            font-size: 14px;
            font-weight: 700;
            padding: 7px 20px;
            border-radius: 100px;
            letter-spacing: 1px;
            border: 1px solid rgba(255, 183, 3, .25);
            margin-bottom: 24px;
        }
        .page-hero h1 {
            font-size: clamp(30px, 4.8vw, 54px);
            font-weight: 900;
            color: var(--white);
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .page-hero h1 span {
            color: var(--accent);
        }
        .page-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, .82);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 36px;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        /* Stats Bar */
        .stats-bar {
            background: var(--bg-dark);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            padding: 30px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .stat-item {
            text-align: center;
            padding: 20px 12px;
            position: relative;
        }
        .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: -15px;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 44px;
            background: rgba(255, 255, 255, .1);
        }
        .stat-number {
            font-size: clamp(30px, 3.6vw, 48px);
            font-weight: 900;
            color: var(--accent);
            line-height: 1.1;
            letter-spacing: -1px;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            margin-top: 8px;
            font-weight: 500;
            letter-spacing: 1px;
        }
        /* Quick Start Cards */
        .quick-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .quick-card {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 40px 32px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all .35s ease;
            position: relative;
            overflow: hidden;
        }
        .quick-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity .3s ease;
        }
        .quick-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(230, 57, 70, .2);
        }
        .quick-card:hover::before {
            opacity: 1;
        }
        .quick-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 22px;
            background: linear-gradient(135deg, rgba(230, 57, 70, .12), rgba(255, 183, 3, .1));
            color: var(--primary);
        }
        .quick-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .quick-card p {
            font-size: 14.5px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 18px;
        }
        .quick-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .quick-link i {
            transition: transform .25s ease;
        }
        .quick-link:hover i {
            transform: translateX(4px);
        }
        /* Feature Section */
        .feature-section {
            background: var(--bg-light);
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .feature-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all .35s ease;
        }
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(230, 57, 70, .15);
        }
        .feature-image {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }
        .feature-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .feature-card:hover .feature-image img {
            transform: scale(1.05);
        }
        .feature-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 23, 42, .35), transparent 50%);
        }
        .feature-tag {
            position: absolute;
            z-index: 2;
            top: 16px;
            left: 16px;
            background: rgba(255, 255, 255, .92);
            color: var(--text-dark);
            font-size: 12px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 100px;
            backdrop-filter: blur(4px);
        }
        .feature-content {
            padding: 28px 28px 32px;
        }
        .feature-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .feature-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }
        /* Process Dark Section */
        .process-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .process-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(230, 57, 70, .12);
            filter: blur(60px);
        }
        .process-section .section-title {
            color: var(--white);
        }
        .process-section .section-desc {
            color: rgba(255, 255, 255, .65);
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 28px;
            counter-reset: step;
            margin-top: 10px;
        }
        .step-item {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-md);
            padding: 30px 22px;
            text-align: center;
            position: relative;
            transition: all .35s ease;
            backdrop-filter: blur(6px);
        }
        .step-item:hover {
            background: rgba(255, 255, 255, .09);
            transform: translateY(-4px);
            border-color: rgba(255, 183, 3, .3);
        }
        .step-num {
            width: 52px;
            height: 52px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: var(--white);
            box-shadow: 0 8px 24px rgba(230, 57, 70, .35);
        }
        .step-item h3 {
            font-size: 16px;
            color: var(--white);
            font-weight: 600;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 13px;
            color: rgba(255, 255, 255, .55);
            line-height: 1.6;
        }
        /* FAQ */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all .3s ease;
        }
        .faq-item:hover {
            border-color: rgba(230, 57, 70, .2);
            box-shadow: var(--shadow-sm);
        }
        .faq-item.open {
            border-color: rgba(230, 57, 70, .3);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 22px 28px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            user-select: none;
            transition: color .25s ease;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(230, 57, 70, .08);
            color: var(--primary);
            font-size: 13px;
            transition: all .3s ease;
        }
        .faq-item.open .faq-icon {
            background: var(--primary);
            color: var(--white);
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
        }
        .faq-answer-inner {
            padding: 0 28px 24px;
            font-size: 14.5px;
            color: var(--text-muted);
            line-height: 1.8;
            border-top: 1px dashed var(--border);
            margin: 0 28px;
            padding-top: 16px;
            padding-left: 0;
            padding-right: 0;
        }
        /* CTA */
        .cta-section {
            padding: 80px 0;
            background: var(--bg-light);
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-lg);
            padding: 64px 56px;
            text-align: center;
            color: var(--white);
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(230, 57, 70, .3);
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
        }
        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 183, 3, .15);
        }
        .cta-title {
            font-size: clamp(26px, 3.4vw, 38px);
            font-weight: 800;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, .85);
            max-width: 520px;
            margin: 0 auto 32px;
            position: relative;
            z-index: 1;
            line-height: 1.7;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            padding-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand .logo {
            color: var(--white);
            margin-bottom: 16px;
        }
        .footer-brand .logo i {
            color: var(--primary);
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 360px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, .08);
            color: rgba(255, 255, 255, .7);
            font-size: 16px;
            transition: all .25s ease;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: var(--white);
            transform: translateY(-3px);
        }
        .footer-col h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 20px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            transition: all .25s ease;
        }
        .footer-col ul a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-info p {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-info p i {
            color: var(--primary);
            width: 16px;
        }
        .footer-bottom {
            text-align: center;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, .35);
        }
        /* Responsive */
        @media(max-width:1024px) {
            .search-box {
                width: 160px;
            }
            .main-nav a {
                padding: 8px 12px;
                font-size: 14px;
            }
            .quick-grid {
                gap: 20px;
            }
            .feature-grid {
                gap: 20px;
            }
            .process-steps {
                gap: 16px;
            }
        }
        @media(max-width:768px) {
            .section {
                padding: 64px 0;
            }
            .nav-toggle {
                display: flex;
            }
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 14px 0;
            }
            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: var(--white);
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 30px rgba(0, 0, 0, .08);
                max-height: 0;
                overflow: hidden;
                transition: max-height .4s ease;
            }
            .main-nav.open {
                max-height: 500px;
            }
            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                padding: 12px 20px;
            }
            .main-nav a {
                padding: 12px 16px;
                border-radius: 10px;
                font-size: 15px;
            }
            .search-box {
                display: none;
            }
            .header-actions {
                gap: 10px;
            }
            .btn-accent {
                padding: 9px 18px;
                font-size: 14px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-item:not(:last-child)::after {
                display: none;
            }
            .stat-item:nth-child(2)::after {
                display: none;
            }
            .quick-grid {
                grid-template-columns: 1fr;
                max-width: 440px;
                margin: 0 auto;
            }
            .feature-grid {
                grid-template-columns: 1fr;
                max-width: 440px;
                margin: 0 auto;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-box {
                padding: 40px 28px;
            }
        }
        @media(max-width:520px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 50px 0;
            }
            .page-hero {
                padding: 72px 0 64px;
            }
            .hero-buttons {
                flex-direction: column;
            }
            .hero-buttons .btn {
                width: 100%;
            }
            .process-steps {
                grid-template-columns: 1fr;
                max-width: 340px;
                margin: 0 auto;
            }
            .cta-buttons {
                flex-direction: column;
            }
            .cta-buttons .btn {
                width: 100%;
            }
            .footer-bottom {
                padding: 18px 12px;
                font-size: 12px;
                line-height: 1.6;
            }
            .btn-accent {
                padding: 8px 14px;
                font-size: 13px;
            }
            .logo {
                font-size: 18px;
            }
        }
        @media(max-width:380px) {
            .header-actions .btn-accent {
                display: none;
            }
        }

/* roulang page: category2 */
:root {
        --primary: #0d1428;
        --primary-light: #1a2340;
        --accent: #f5a623;
        --accent-hover: #e59813;
        --accent-grad: linear-gradient(135deg, #f5a623, #ffc94d);
        --bg-light: #f7f8fc;
        --bg-white: #ffffff;
        --text-main: #1a1d29;
        --text-body: #4a4d5a;
        --text-muted: #8e92a3;
        --border: #e8eaf0;
        --radius-lg: 20px;
        --radius-md: 14px;
        --radius-sm: 8px;
        --shadow-sm: 0 2px 8px rgba(13, 20, 40, 0.04);
        --shadow-md: 0 8px 24px rgba(13, 20, 40, 0.08);
        --shadow-lg: 0 16px 40px rgba(13, 20, 40, 0.12);
        --section-space: 80px;
        --container-width: 1200px;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }
    body {
        font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
        background: var(--bg-light);
        color: var(--text-body);
        line-height: 1.7;
        font-size: 15px;
        -webkit-font-smoothing: antialiased;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: color 0.25s ease;
    }
    img {
        max-width: 100%;
        display: block;
    }
    button {
        border: none;
        cursor: pointer;
        background: none;
        font-family: inherit;
    }
    input {
        font-family: inherit;
        border: none;
        outline: none;
    }
    ul {
        list-style: none;
    }
    .container {
        max-width: var(--container-width);
        margin: 0 auto;
        padding: 0 24px;
    }
    .section {
        padding: var(--section-space) 0;
    }
    .section-sm {
        padding: 48px 0;
    }

    /* Header */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(255, 255, 255, 0.94);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 72px;
        gap: 20px;
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 22px;
        font-weight: 800;
        color: var(--primary);
        white-space: nowrap;
    }
    .logo i {
        color: var(--accent);
        font-size: 24px;
        background: var(--accent-grad);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    .main-nav {
        display: flex;
        align-items: center;
    }
    .main-nav ul {
        display: flex;
        gap: 4px;
    }
    .main-nav a {
        display: block;
        padding: 8px 16px;
        border-radius: 24px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text-main);
        transition: all 0.28s ease;
    }
    .main-nav a:hover {
        background: #f0f2f7;
        color: var(--accent);
    }
    .main-nav a.active {
        background: var(--primary);
        color: #fff;
    }
    .header-actions {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .search-box {
        display: flex;
        align-items: center;
        background: #f0f2f7;
        border: 1px solid transparent;
        border-radius: 24px;
        padding: 0 8px 0 16px;
        height: 40px;
        transition: border-color 0.3s, box-shadow 0.3s;
    }
    .search-box:focus-within {
        border-color: var(--accent);
        box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.12);
        background: #fff;
    }
    .search-box input {
        width: 150px;
        background: transparent;
        font-size: 14px;
        color: var(--text-main);
    }
    .search-box input::placeholder {
        color: var(--text-muted);
    }
    .search-box button {
        width: 32px;
        height: 32px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-muted);
        transition: background 0.3s, color 0.3s;
    }
    .search-box button:hover {
        background: var(--accent);
        color: #fff;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 10px 28px;
        border-radius: 24px;
        font-size: 14px;
        font-weight: 600;
        transition: all 0.3s ease;
        white-space: nowrap;
    }
    .btn-accent {
        background: var(--accent-grad);
        color: #fff;
        box-shadow: 0 4px 16px rgba(245, 166, 35, 0.35);
    }
    .btn-accent:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(245, 166, 35, 0.45);
        color: #fff;
    }
    .btn-outline {
        border: 2px solid rgba(255, 255, 255, 0.6);
        color: #fff;
        background: transparent;
    }
    .btn-outline:hover {
        border-color: var(--accent);
        color: var(--accent);
        transform: translateY(-2px);
    }
    .btn-dark {
        background: var(--primary);
        color: #fff;
    }
    .btn-dark:hover {
        background: var(--primary-light);
        transform: translateY(-2px);
        color: #fff;
    }
    .btn-light {
        background: #fff;
        color: var(--primary);
        box-shadow: var(--shadow-sm);
    }
    .btn-light:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }
    .nav-toggle {
        display: none;
        flex-direction: column;
        gap: 5px;
        padding: 8px;
    }
    .nav-toggle span {
        width: 22px;
        height: 2px;
        background: var(--text-main);
        border-radius: 2px;
        transition: all 0.3s;
    }

    /* Hero */
    .page-hero {
        position: relative;
        padding: 110px 0 100px;
        background: linear-gradient(135deg, rgba(13, 20, 40, 0.86), rgba(26, 35, 64, 0.72)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        color: #fff;
        text-align: center;
        overflow: hidden;
    }
    .page-hero::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 80px;
        background: linear-gradient(to top, var(--bg-light), transparent);
    }
    .page-hero .container {
        position: relative;
        z-index: 2;
    }
    .page-hero .hero-tag {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(245, 166, 35, 0.14);
        border: 1px solid rgba(245, 166, 35, 0.5);
        color: var(--accent);
        font-size: 13px;
        font-weight: 600;
        padding: 6px 18px;
        border-radius: 30px;
        margin-bottom: 24px;
        letter-spacing: 1px;
    }
    .page-hero h1 {
        font-size: 56px;
        line-height: 1.2;
        font-weight: 800;
        margin-bottom: 16px;
        letter-spacing: 2px;
    }
    .page-hero p {
        font-size: 18px;
        max-width: 720px;
        margin: 0 auto 36px;
        opacity: 0.85;
        line-height: 1.8;
    }
    .hero-btns {
        display: flex;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }
    .hero-data {
        display: flex;
        justify-content: center;
        gap: 48px;
        margin-top: 48px;
        flex-wrap: wrap;
    }
    .hero-data-item {
        text-align: center;
    }
    .hero-data-item b {
        display: block;
        font-size: 32px;
        color: var(--accent);
        font-weight: 800;
    }
    .hero-data-item span {
        font-size: 13px;
        opacity: 0.7;
    }

    /* Section head */
    .section-head {
        text-align: center;
        max-width: 720px;
        margin: 0 auto 48px;
    }
    .section-head .tag {
        display: inline-block;
        font-size: 12px;
        font-weight: 700;
        letter-spacing: 2px;
        color: var(--accent);
        background: rgba(245, 166, 35, 0.1);
        padding: 5px 14px;
        border-radius: 20px;
        margin-bottom: 14px;
        text-transform: uppercase;
    }
    .section-head h2 {
        font-size: 34px;
        color: var(--primary);
        font-weight: 800;
        margin-bottom: 12px;
        line-height: 1.3;
    }
    .section-head p {
        color: var(--text-muted);
        font-size: 16px;
        line-height: 1.7;
    }

    /* Play types cards */
    .play-types {
        background: var(--bg-white);
    }
    .play-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
    .play-card {
        background: var(--bg-light);
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 1px solid var(--border);
        transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.3s;
    }
    .play-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-lg);
        border-color: rgba(245, 166, 35, 0.4);
    }
    .play-card-cover {
        position: relative;
        height: 150px;
        overflow: hidden;
    }
    .play-card-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }
    .play-card:hover .play-card-cover img {
        transform: scale(1.05);
    }
    .play-card-cover::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, transparent 30%, rgba(13, 20, 40, 0.5));
    }
    .play-card-badge {
        position: absolute;
        top: 12px;
        left: 12px;
        z-index: 2;
        background: var(--accent);
        color: #fff;
        font-size: 11px;
        font-weight: 700;
        padding: 4px 12px;
        border-radius: 20px;
        letter-spacing: 1px;
    }
    .play-card-body {
        padding: 24px;
    }
    .play-card-body h3 {
        font-size: 19px;
        color: var(--text-main);
        font-weight: 700;
        margin-bottom: 8px;
    }
    .play-card-body p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 16px;
    }
    .play-card-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .play-card-tags span {
        font-size: 12px;
        color: var(--primary);
        background: #eef0f5;
        border-radius: 16px;
        padding: 3px 12px;
        font-weight: 500;
    }

    /* Data section */
    .data-section {
        background: linear-gradient(135deg, var(--primary) 0%, #15203f 100%);
        color: #fff;
        position: relative;
        overflow: hidden;
    }
    .data-section::before {
        content: '';
        position: absolute;
        top: -60px;
        right: -60px;
        width: 260px;
        height: 260px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(245, 166, 35, 0.18), transparent 70%);
    }
    .data-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
        position: relative;
        z-index: 2;
    }
    .data-item {
        text-align: center;
        padding: 24px 12px;
        border-radius: var(--radius-md);
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.08);
        transition: background 0.3s, transform 0.3s;
    }
    .data-item:hover {
        background: rgba(255, 255, 255, 0.08);
        transform: translateY(-4px);
    }
    .data-item i {
        font-size: 28px;
        color: var(--accent);
        margin-bottom: 12px;
        display: block;
    }
    .data-item b {
        display: block;
        font-size: 40px;
        font-weight: 800;
        color: var(--accent);
        line-height: 1.2;
    }
    .data-item span {
        font-size: 14px;
        opacity: 0.75;
        display: block;
        margin-top: 6px;
    }

    /* Rank section */
    .rank-section {
        background: var(--bg-light);
    }
    .rank-wrap {
        max-width: 840px;
        margin: 0 auto;
        background: var(--bg-white);
        border-radius: var(--radius-lg);
        padding: 40px;
        box-shadow: var(--shadow-md);
        border: 1px solid var(--border);
    }
    .rank-item {
        margin-bottom: 28px;
    }
    .rank-item:last-child {
        margin-bottom: 0;
    }
    .rank-head {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 10px;
    }
    .rank-head .rank-name {
        font-size: 15px;
        font-weight: 600;
        color: var(--text-main);
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .rank-head .rank-num {
        display: inline-flex;
        width: 30px;
        height: 30px;
        border-radius: 50%;
        background: var(--primary);
        color: #fff;
        font-size: 13px;
        align-items: center;
        justify-content: center;
        font-weight: 700;
    }
    .rank-item:nth-child(1) .rank-num {
        background: var(--accent);
    }
    .rank-head .rank-val {
        font-size: 15px;
        font-weight: 700;
        color: var(--accent);
    }
    .rank-bar {
        height: 8px;
        background: #eef0f5;
        border-radius: 8px;
        overflow: hidden;
    }
    .rank-bar i {
        display: block;
        height: 100%;
        border-radius: 8px;
        background: linear-gradient(90deg, var(--primary), var(--accent));
        transition: width 1s ease;
    }

    /* Steps section */
    .steps-section {
        background: var(--bg-white);
    }
    .steps-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        margin-top: 40px;
    }
    .step-card {
        position: relative;
        background: var(--bg-light);
        border-radius: var(--radius-lg);
        padding: 36px 24px 28px;
        border: 1px solid var(--border);
        transition: box-shadow 0.3s, transform 0.3s;
    }
    .step-card:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-4px);
    }
    .step-num {
        position: absolute;
        top: -14px;
        left: 24px;
        width: 34px;
        height: 34px;
        border-radius: 50%;
        background: var(--accent-grad);
        color: #fff;
        font-weight: 800;
        font-size: 16px;
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 0 4px 10px rgba(245, 166, 35, 0.3);
    }
    .step-card i {
        font-size: 30px;
        color: var(--primary);
        margin-bottom: 16px;
        margin-top: 4px;
        display: block;
    }
    .step-card h3 {
        font-size: 17px;
        color: var(--text-main);
        font-weight: 700;
        margin-bottom: 10px;
    }
    .step-card p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
    }

    /* FAQ */
    .faq-section {
        background: var(--bg-light);
    }
    .faq-list {
        max-width: 800px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 16px;
    }
    .faq-item {
        background: var(--bg-white);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: box-shadow 0.3s, border-color 0.3s;
    }
    .faq-item:hover {
        border-color: rgba(245, 166, 35, 0.4);
        box-shadow: var(--shadow-sm);
    }
    .faq-item summary {
        padding: 20px 24px;
        font-size: 15px;
        font-weight: 600;
        color: var(--text-main);
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        list-style: none;
    }
    .faq-item summary::-webkit-details-marker {
        display: none;
    }
    .faq-item summary::after {
        content: '\f078';
        font-family: 'Font Awesome 6 Free';
        font-weight: 900;
        font-size: 14px;
        color: var(--accent);
        transition: transform 0.3s;
        flex-shrink: 0;
    }
    .faq-item[open] summary::after {
        transform: rotate(180deg);
    }
    .faq-item .faq-a {
        padding: 0 24px 22px;
        font-size: 14px;
        color: var(--text-body);
        line-height: 1.8;
        border-top: 1px solid var(--border);
        padding-top: 16px;
    }

    /* CTA */
    .cta-section {
        background: linear-gradient(135deg, var(--primary) 0%, #1c2a4d 100%);
        padding: 80px 0;
        text-align: center;
        color: #fff;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        left: 50%;
        top: -100px;
        width: 600px;
        height: 600px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(245, 166, 35, 0.2), transparent 70%);
        transform: translateX(-50%);
    }
    .cta-section .container {
        position: relative;
        z-index: 2;
    }
    .cta-section h2 {
        font-size: 38px;
        font-weight: 800;
        margin-bottom: 16px;
    }
    .cta-section p {
        font-size: 16px;
        opacity: 0.8;
        max-width: 600px;
        margin: 0 auto 36px;
        line-height: 1.8;
    }
    .cta-btns {
        display: flex;
        justify-content: center;
        gap: 16px;
        flex-wrap: wrap;
    }

    /* Footer */
    .site-footer {
        background: #0a0f1e;
        color: rgba(255, 255, 255, 0.7);
        padding-top: 64px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1.2fr;
        gap: 48px;
        padding-bottom: 48px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-brand .logo {
        color: #fff;
        margin-bottom: 16px;
    }
    .footer-brand p {
        font-size: 14px;
        line-height: 1.8;
        margin-bottom: 20px;
        opacity: 0.7;
        max-width: 420px;
    }
    .footer-social {
        display: flex;
        gap: 12px;
    }
    .footer-social a {
        width: 38px;
        height: 38px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.08);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 15px;
        transition: background 0.3s, transform 0.3s;
    }
    .footer-social a:hover {
        background: var(--accent);
        transform: translateY(-3px);
    }
    .footer-col h3 {
        font-size: 16px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 18px;
    }
    .footer-col ul li {
        margin-bottom: 10px;
    }
    .footer-col a {
        font-size: 14px;
        opacity: 0.7;
        transition: opacity 0.3s, color 0.3s, padding-left 0.3s;
    }
    .footer-col a:hover {
        color: var(--accent);
        opacity: 1;
        padding-left: 4px;
    }
    .footer-info p {
        font-size: 14px;
        margin-bottom: 10px;
        opacity: 0.7;
    }
    .footer-info i {
        margin-right: 6px;
        color: var(--accent);
    }
    .footer-bottom {
        padding: 20px 0;
        text-align: center;
        font-size: 13px;
        opacity: 0.6;
    }

    /* Responsive */
    @media (max-width: 1024px) {
        .play-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .steps-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .data-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
    }
    @media (max-width: 768px) {
        :root {
            --section-space: 56px;
        }
        .header-inner {
            height: 64px;
        }
        .main-nav {
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            display: none;
            flex-direction: column;
            padding: 16px;
            max-height: calc(100vh - 64px);
            overflow-y: auto;
        }
        .main-nav.open {
            display: flex;
        }
        .main-nav ul {
            flex-direction: column;
            width: 100%;
            gap: 4px;
        }
        .main-nav a {
            padding: 12px 20px;
            text-align: center;
            font-size: 16px;
        }
        .nav-toggle {
            display: flex;
        }
        .search-box {
            display: none;
        }
        .page-hero {
            padding: 80px 0 70px;
        }
        .page-hero h1 {
            font-size: 34px;
        }
        .page-hero p {
            font-size: 16px;
        }
        .section-head h2 {
            font-size: 26px;
        }
        .play-grid {
            grid-template-columns: 1fr;
        }
        .steps-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .data-grid {
            grid-template-columns: 1fr 1fr;
        }
        .rank-wrap {
            padding: 24px 20px;
        }
        .hero-data {
            gap: 24px;
        }
        .hero-data-item b {
            font-size: 24px;
        }
        .cta-section h2 {
            font-size: 28px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
        }
    }
    @media (max-width: 520px) {
        .header-inner {
            gap: 8px;
        }
        .logo {
            font-size: 17px;
        }
        .logo i {
            font-size: 20px;
        }
        .btn-accent {
            padding: 8px 16px;
            font-size: 13px;
        }
        .page-hero h1 {
            font-size: 28px;
        }
        .page-hero p {
            font-size: 14px;
        }
        .hero-btns {
            flex-direction: column;
            align-items: center;
        }
        .hero-data {
            flex-direction: column;
            gap: 12px;
        }
        .play-card-body {
            padding: 18px;
        }
        .data-item b {
            font-size: 32px;
        }
        .data-item span {
            font-size: 13px;
        }
        .faq-item summary {
            font-size: 14px;
            padding: 16px;
        }
        .cta-btns {
            flex-direction: column;
            align-items: center;
        }
        .cta-section h2 {
            font-size: 24px;
        }
    }

/* roulang page: category3 */
:root {
            --primary: #0e1e3c;
            --primary-light: #1a2f56;
            --primary-dark: #080f1f;
            --accent: #d4a853;
            --accent-light: #e8c97a;
            --accent-dark: #b8923f;
            --bg: #f5f7fb;
            --bg-alt: #eef1f7;
            --card: #ffffff;
            --text: #1a2033;
            --text-light: #6b7385;
            --text-lighter: #9aa3b5;
            --border: #e5e9f2;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 6px 24px rgba(14, 30, 60, 0.08);
            --shadow-lg: 0 14px 40px rgba(14, 30, 60, 0.12);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --gap: 28px;
            --header-height: 78px;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; display: block; }
        ul { list-style: none; }
        button { font-family: inherit; cursor: pointer; border: none; background: none; }
        input { font-family: inherit; border: none; outline: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 28px; }

        /* ============ Header ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 16px rgba(14, 30, 60, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 28px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--accent);
            font-size: 24px;
            background: linear-gradient(135deg, var(--accent), #f0d88a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .main-nav { flex: 1; }
        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 6px;
            justify-content: center;
        }
        .main-nav a {
            display: block;
            padding: 8px 16px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
        }
        .main-nav a:hover {
            color: var(--primary);
            background: rgba(14, 30, 60, 0.06);
        }
        .main-nav a.active {
            color: var(--primary);
            background: rgba(212, 168, 83, 0.16);
            font-weight: 600;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 0 6px 0 16px;
            height: 40px;
            width: 220px;
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.12);
        }
        .search-box input {
            flex: 1;
            background: transparent;
            font-size: 14px;
            color: var(--text);
            width: 100%;
        }
        .search-box input::placeholder { color: var(--text-lighter); }
        .search-box button {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            transition: var(--transition);
        }
        .search-box button:hover { color: var(--accent); }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #0e1e3c;
            box-shadow: 0 4px 14px rgba(212, 168, 83, 0.35);
        }
        .btn-accent:hover {
            box-shadow: 0 6px 22px rgba(212, 168, 83, 0.5);
            transform: translateY(-2px);
        }
        .btn-outline {
            border: 2px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            background: transparent;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: #fff;
        }
        .btn-dark {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(14, 30, 60, 0.25);
        }
        .btn-dark:hover {
            box-shadow: 0 8px 24px rgba(14, 30, 60, 0.35);
            transform: translateY(-2px);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--bg);
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
        }
        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* ============ Hero ============ */
        .page-hero {
            position: relative;
            padding: 96px 0 88px;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary) 55%, var(--primary-light));
            background-image: linear-gradient(135deg, rgba(8, 15, 31, 0.88), rgba(14, 30, 60, 0.82) 55%, rgba(26, 47, 86, 0.86)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--bg);
            clip-path: polygon(0 100%, 100% 0, 100% 100%);
            opacity: 0.6;
        }
        .hero-content { max-width: 760px; position: relative; z-index: 2; }
        .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);
            border-radius: 40px;
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 1px;
            text-transform: uppercase;
            color: var(--accent-light);
            margin-bottom: 22px;
        }
        .hero-content h1 {
            font-size: 42px;
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
        }
        .hero-content h1 span { color: var(--accent); }
        .hero-content p.lead {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.75;
            margin-bottom: 32px;
        }
        .hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-metrics {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 56px;
            position: relative;
            z-index: 2;
        }
        .metric-card {
            background: rgba(255, 255, 255, 0.09);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius);
            padding: 22px 20px;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .metric-card:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateY(-4px);
        }
        .metric-card .value {
            font-size: 34px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .metric-card .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 6px;
        }

        /* ============ Section common ============ */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-alt); }
        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 52px;
        }
        .section-header .tag {
            display: inline-block;
            background: rgba(212, 168, 83, 0.14);
            color: var(--accent-dark);
            border-radius: 40px;
            padding: 4px 16px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }
        .section-header h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-header p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        /* ============ Cards grid ============ */
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
        .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap); }
        .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .service-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(212, 168, 83, 0.4);
        }
        .service-card .card-top {
            padding: 28px 28px 20px;
            position: relative;
        }
        .service-card .icon {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(212, 168, 83, 0.2), rgba(212, 168, 83, 0.06));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent-dark);
            margin-bottom: 18px;
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.65;
            flex: 1;
            margin-bottom: 16px;
        }
        .service-card .card-footer {
            padding: 16px 28px 22px;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--accent-dark);
            font-weight: 500;
        }
        .service-card .card-footer i { transition: var(--transition); }
        .service-card:hover .card-footer i { transform: translateX(4px); }

        /* ============ Flow / Steps ============ */
        .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
        .step-item {
            position: relative;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px 26px;
            text-align: center;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }
        .step-item::before {
            counter-increment: step;
            content: "0" counter(step);
            position: absolute;
            top: 16px;
            right: 18px;
            font-size: 26px;
            font-weight: 800;
            color: rgba(14, 30, 60, 0.07);
            line-height: 1;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .step-item .step-dot {
            width: 52px;
            height: 52px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            box-shadow: 0 4px 12px rgba(212, 168, 83, 0.3);
        }
        .step-item h3 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
        .step-item p { font-size: 13px; color: var(--text-light); line-height: 1.6; }

        /* ============ Feature split ============ */
        .split-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .split-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
            min-height: 380px;
            background-size: cover;
            background-position: center;
        }
        .split-image img { width: 100%; height: 100%; object-fit: cover; }
        .split-text h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .split-text p {
            color: var(--text-light);
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .split-text .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 8px 0;
            font-size: 15px;
            color: var(--text);
        }
        .split-text .check-list li i {
            color: var(--accent);
            font-size: 16px;
            margin-top: 4px;
        }

        /* ============ Dark block ============ */
        .dark-block {
            background: var(--primary);
            background-image: linear-gradient(135deg, rgba(8, 15, 31, 0.92), rgba(14, 30, 60, 0.88)), url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            padding: 84px 0;
        }
        .dark-block .section-header h2 { color: #fff; }
        .dark-block .section-header p { color: rgba(255, 255, 255, 0.7); }
        .dark-block .section-header .tag {
            background: rgba(255, 255, 255, 0.12);
            color: var(--accent-light);
        }
        .dark-block .grid-3 { grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .dark-card {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 30px 28px;
            transition: var(--transition);
            backdrop-filter: blur(6px);
        }
        .dark-card:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
        }
        .dark-card .icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 18px;
        }
        .dark-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
        .dark-card p { font-size: 14px; color: rgba(255, 255, 255, 0.7); line-height: 1.65; }

        /* ============ FAQ ============ */
        .faq-wrapper { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(212, 168, 83, 0.4); }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            list-style: none;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary i {
            color: var(--accent);
            font-size: 14px;
            transition: transform 0.3s;
            flex-shrink: 0;
        }
        .faq-item[open] summary i { transform: rotate(45deg); }
        .faq-item[open] summary { color: var(--accent-dark); }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.75;
        }

        /* ============ CTA ============ */
        .cta-block {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            border-radius: 24px;
            padding: 52px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 16px 40px rgba(212, 168, 83, 0.28);
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.15);
        }
        .cta-block h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
            position: relative;
        }
        .cta-block p {
            color: rgba(14, 30, 60, 0.78);
            font-size: 16px;
            max-width: 460px;
            margin: 0 auto 28px;
            position: relative;
        }
        .cta-block .btn {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(14, 30, 60, 0.28);
            position: relative;
        }
        .cta-block .btn:hover {
            box-shadow: 0 10px 28px rgba(14, 30, 60, 0.4);
            transform: translateY(-2px);
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 0;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 20px;
            margin-bottom: 16px;
        }
        .footer-brand .logo i {
            color: var(--accent);
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            max-width: 360px;
        }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-3px);
        }
        .footer-col h3 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-col ul li { margin-bottom: 12px; }
        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
        }
        .footer-col ul a:hover { color: var(--accent); padding-left: 4px; }
        .footer-info p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            .hero-metrics { grid-template-columns: repeat(2, 1fr); }
            .grid-4 { grid-template-columns: repeat(2, 1fr); }
            .grid-3 { grid-template-columns: repeat(2, 1fr); }
            .steps { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .header-actions .search-box { display: none; }
        }
        @media (max-width: 768px) {
            .container { padding: 0 20px; }
            .header-inner { gap: 12px; }
            .main-nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 24px rgba(14, 30, 60, 0.12);
                padding: 16px 20px;
            }
            .main-nav.open { display: block; }
            .main-nav ul { flex-direction: column; align-items: stretch; gap: 4px; }
            .main-nav a { padding: 14px 16px; font-size: 16px; border-radius: 10px; }
            .nav-toggle { display: flex; }
            .header-actions .btn { display: none; }
            .page-hero { padding: 68px 0 64px; }
            .page-hero h1 { font-size: 30px; }
            .hero-cta .btn { padding: 10px 18px; font-size: 14px; }
            .section { padding: 56px 0; }
            .section-header h2 { font-size: 26px; }
            .grid-3, .grid-2 { grid-template-columns: 1fr; gap: 18px; }
            .grid-4 { grid-template-columns: repeat(2, 1fr); gap: 14px; }
            .steps { grid-template-columns: 1fr; gap: 16px; }
            .split-block { grid-template-columns: 1fr; gap: 36px; }
            .dark-block .grid-3 { grid-template-columns: 1fr; }
            .cta-block { padding: 36px 24px; }
            .cta-block h2 { font-size: 24px; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .hero-metrics { grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 36px; }
            .metric-card .value { font-size: 28px; }
        }
        @media (max-width: 520px) {
            .logo { font-size: 16px; }
            .logo i { font-size: 20px; }
            .container { padding: 0 16px; }
            .hero-metrics { grid-template-columns: 1fr; gap: 10px; }
            .grid-4 { grid-template-columns: 1fr; }
            .step-item { padding: 24px 16px; }
            .hero-cta { flex-direction: column; }
            .hero-cta .btn { width: 100%; }
            .page-hero h1 { font-size: 26px; }
            .cta-block h2 { font-size: 20px; }
            .btn { padding: 9px 16px; }
        }