/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
    --bg-body: #070b12;
    --bg-secondary: #0b1120;
    --bg-card: #101826;
    --bg-card-light: #141d2e;
    --primary: #00e5ff;
    --primary-dim: #00b8d4;
    --secondary: #8b5cf6;
    --accent: #ff2d78;
    --text: #e8ecf4;
    --text-dim: #8b93a7;
    --text-weak: #5a6270;
    --border: rgba(255, 255, 255, 0.08);
    --radius: 18px;
    --radius-sm: 10px;
    --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    --shadow-neon: 0 0 24px rgba(0, 229, 255, 0.15);
    --shadow-neon-strong: 0 0 40px rgba(0, 229, 255, 0.35);
    --transition: all 0.3s ease;
    --container-width: 1200px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    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-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}
img {
    max-width: 100%;
    height: auto;
    display: block;
    border: 0;
}
button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}
button {
    cursor: pointer;
    border: none;
    background: none;
}
ul, ol {
    margin: 0;
    padding: 0;
    list-style: none;
}
h1, h2, h3, h4, h5, h6 {
    margin: 0;
    line-height: 1.3;
    font-weight: 700;
}
p {
    margin: 0;
}
details > summary {
    list-style: none;
    cursor: pointer;
}
details > summary::-webkit-details-marker {
    display: none;
}
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

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

/* ===== Header & 导航 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(7, 11, 18, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}
.site-header.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    gap: 24px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-icon {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    box-shadow: var(--shadow-neon);
    flex-shrink: 0;
}
.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.5px;
    background: linear-gradient(90deg, var(--primary), #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.nav-menu a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-dim);
    position: relative;
    transition: var(--transition);
    border: 1px solid transparent;
}
.nav-menu a i {
    font-size: 13px;
    opacity: 0.8;
}
.nav-menu a:hover {
    color: #fff;
    border-color: rgba(0, 229, 255, 0.3);
    background: rgba(0, 229, 255, 0.06);
}
.nav-menu .active {
    color: var(--primary);
    border-color: rgba(0, 229, 255, 0.4);
    background: rgba(0, 229, 255, 0.1);
    box-shadow: 0 0 18px rgba(0, 229, 255, 0.1);
}
.nav-menu .active::after {
    content: '';
    display: block;
    position: absolute;
    bottom: -1px;
    left: 18px;
    right: 18px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    box-shadow: 0 0 12px var(--primary);
}
.nav-cta {
    flex-shrink: 0;
}
.nav-cta .btn {
    padding: 8px 18px;
    font-size: 14px;
}
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.04);
    align-items: center;
}
.menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}
.menu-toggle:hover span {
    background: var(--primary);
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    transition: var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
    text-align: center;
}
.btn i {
    font-size: 14px;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #0a0e17;
    box-shadow: 0 4px 20px rgba(0, 229, 255, 0.25);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 229, 255, 0.4);
    color: #0a0e17;
}
.btn-outline {
    border-color: rgba(0, 229, 255, 0.4);
    color: var(--primary);
    background: rgba(0, 229, 255, 0.04);
}
.btn-outline:hover {
    border-color: var(--primary);
    background: rgba(0, 229, 255, 0.1);
    box-shadow: var(--shadow-neon);
    transform: translateY(-2px);
    color: var(--primary);
}
.btn-lg {
    padding: 16px 36px;
    font-size: 16px;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    padding: 180px 0 130px;
    background:
        linear-gradient(135deg, rgba(7, 11, 18, 0.95) 0%, rgba(7, 11, 18, 0.82) 50%, rgba(20, 10, 30, 0.88) 100%),
        url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.15), transparent 60%);
    pointer-events: none;
}
.hero-inner {
    position: relative;
    z-index: 2;
    max-width: 760px;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 30px;
    border: 1px solid rgba(0, 229, 255, 0.4);
    background: rgba(0, 229, 255, 0.08);
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
    margin-bottom: 24px;
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.1);
}
.hero-badge i {
    font-size: 12px;
}
.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
    color: #fff;
    letter-spacing: 1px;
}
.hero-subtitle {
    font-size: 20px;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 16px;
}
.hero-desc {
    font-size: 16px;
    color: var(--text-dim);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 600px;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

/* ===== 板块通用 ===== */
.section {
    padding: 90px 0;
}
.section-header {
    text-align: center;
    margin-bottom: 50px;
}
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 30px;
    background: rgba(0, 229, 255, 0.08);
    border: 1px solid rgba(0, 229, 255, 0.25);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 16px;
}
.section-title {
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}
.section-desc {
    font-size: 16px;
    color: var(--text-dim);
    max-width: 560px;
    margin: 0 auto;
}

/* ===== 核心说明 ===== */
.features-section {
    background: var(--bg-secondary);
}
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition);
    height: 100%;
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 0 0 4px 4px;
    opacity: 0;
    transition: var(--transition);
}
.feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 229, 255, 0.35);
    box-shadow: var(--shadow);
}
.feature-card:hover::before {
    opacity: 1;
}
.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary);
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid rgba(0, 229, 255, 0.2);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.05);
    transition: var(--transition);
}
.feature-card:hover .feature-icon {
    box-shadow: var(--shadow-neon);
    transform: scale(1.05);
}
.feature-title {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 12px;
}
.feature-text {
    font-size: 14px;
    color: var(--text-dim);
    line-height: 1.7;
}

/* ===== 分类入口 ===== */
.categories-section {
    background: var(--bg-body);
}
.category-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}
.category-card {
    display: block;
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
    height: 100%;
    background: var(--bg-card);
}
.category-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 229, 255, 0.4);
    box-shadow: var(--shadow), var(--shadow-neon);
}
.category-img-wrap {
    height: 240px;
    overflow: hidden;
    position: relative;
}
.category-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.category-card:hover .category-img-wrap img {
    transform: scale(1.05);
}
.category-img-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 30%, rgba(7, 11, 18, 0.9) 100%);
}
.category-info {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 24px 28px;
    z-index: 2;
}
.category-title {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 6px;
}
.category-text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 12px;
    line-height: 1.6;
}
.btn-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
}
.btn-link i {
    transition: transform 0.3s ease;
}
.category-card:hover .btn-link i {
    transform: translateX(4px);
}

/* ===== 最新资讯 ===== */
.latest-section {
    background: var(--bg-secondary);
}
.latest-item {
    display: block;
    padding: 28px 30px;
    border-radius: var(--radius);
    background: var(--bg-card);
    border: 1px solid var(--border);
    margin-bottom: 16px;
    transition: var(--transition);
}
.latest-item:hover {
    border-color: rgba(0, 229, 255, 0.35);
    box-shadow: var(--shadow);
    transform: translateX(4px);
}
.latest-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}
.latest-cat {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    color: var(--primary);
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid rgba(0, 229, 255, 0.2);
}
.latest-time {
    font-size: 13px;
    color: var(--text-weak);
}
.latest-title {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 8px;
    transition: var(--transition);
}
.latest-item:hover .latest-title {
    color: var(--primary);
}
.latest-desc {
    font-size: 14px;
    color: var(--text-dim);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.latest-empty {
    text-align: center;
    padding: 50px 24px;
    color: var(--text-dim);
    font-size: 15px;
    border: 1px dashed var(--border);
    border-radius: var(--radius);
}

/* ===== 数据统计 ===== */
.stats-section {
    background:
        linear-gradient(135deg, rgba(7, 11, 18, 0.92) 0%, rgba(10, 16, 30, 0.85) 100%),
        url('/assets/images/backpic/back-2.png') no-repeat center center / cover;
    padding: 80px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}
.stat-item {
    padding: 30px 20px;
    background: rgba(16, 24, 38, 0.7);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}
.stat-item:hover {
    border-color: rgba(0, 229, 255, 0.3);
    box-shadow: var(--shadow-neon);
    transform: translateY(-4px);
}
.stat-num {
    font-size: 40px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
    margin-bottom: 8px;
    font-variant-numeric: tabular-nums;
}
.stat-label {
    font-size: 14px;
    color: var(--text-dim);
}

/* ===== 平台优势 ===== */
.advantages-section {
    background: var(--bg-body);
}
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.advantage-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    transition: var(--transition);
    height: 100%;
}
.advantage-card:hover {
    transform: translateY(-4px);
    border-color: rgba(139, 92, 246, 0.4);
    box-shadow: var(--shadow);
}
.advantage-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 20px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.25);
    color: var(--secondary);
    transition: var(--transition);
}
.advantage-card:hover .advantage-icon {
    background: rgba(139, 92, 246, 0.18);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.15);
}
.advantage-title {
    font-size: 17px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 10px;
}
.advantage-text {
    font-size: 14px;
    color: var(--text-dim);
    line-height: 1.6;
}

/* ===== FAQ ===== */
.faq-section {
    background: var(--bg-secondary);
}
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}
.faq-item {
    margin-bottom: 16px;
    border-radius: 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover {
    border-color: rgba(0, 229, 255, 0.25);
}
.faq-item details summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    transition: var(--transition);
}
.faq-item details summary i {
    font-size: 14px;
    color: var(--primary);
    transition: transform 0.3s ease;
}
.faq-item details[open] summary i {
    transform: rotate(180deg);
}
.faq-item details[open] summary {
    border-bottom: 1px solid var(--border);
}
.faq-answer {
    padding: 18px 24px;
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
    background: var(--bg-body);
    padding: 80px 0;
}
.cta-box {
    background:
        linear-gradient(135deg, rgba(18, 24, 38, 0.95), rgba(8, 12, 24, 0.9)),
        url('/assets/images/backpic/back-3.png') no-repeat center center / cover;
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: 24px;
    padding: 50px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}
.cta-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
    opacity: 0.6;
}
.cta-title {
    font-size: 30px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}
.cta-text {
    font-size: 16px;
    color: var(--text-dim);
    margin-bottom: 28px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}
.cta-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 60px 0 0;
}
.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
}
.footer-brand .logo {
    margin-bottom: 16px;
}
.footer-desc {
    font-size: 14px;
    color: var(--text-dim);
    line-height: 1.7;
    max-width: 320px;
}
.footer-title {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}
.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.footer-links a {
    font-size: 14px;
    color: var(--text-dim);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}
.footer-links a:hover {
    color: var(--primary);
    padding-left: 4px;
}
.footer-links a i {
    font-size: 11px;
    color: var(--text-weak);
}
.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    color: var(--text-weak);
}
.footer-bottom a {
    color: var(--text-dim);
}
.footer-bottom a:hover {
    color: var(--primary);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .hero {
        padding: 160px 0 100px;
    }
    .hero-title {
        font-size: 42px;
    }
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-main {
        grid-template-columns: 1fr 1fr;
    }
    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    .menu-toggle {
        display: flex;
    }
    .nav-menu {
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        background: rgba(7, 11, 18, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: stretch;
        padding: 16px 24px 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
        gap: 4px;
        transform: translateY(-120%);
        transition: transform 0.35s ease;
        z-index: 999;
    }
    .nav-menu.open {
        transform: translateY(0);
    }
    .nav-menu a {
        padding: 14px 18px;
        font-size: 16px;
        border-radius: 10px;
    }
    .nav-menu .active::after {
        display: none;
    }
    .nav-cta {
        display: none;
    }
    .hero-title {
        font-size: 34px;
    }
    .hero-subtitle {
        font-size: 17px;
    }
    .category-grid {
        grid-template-columns: 1fr;
    }
    .category-img-wrap {
        height: 200px;
    }
    .adv-grid {
        grid-template-columns: 1fr 1fr;
    }
    .advantages-grid {
        grid-template-columns: 1fr 1fr;
    }
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    .cta-box {
        padding: 36px 24px;
    }
    .feature-card {
        padding: 28px 22px;
    }
}

@media (max-width: 520px) {
    .container {
        padding: 0 18px;
    }
    .hero {
        padding: 140px 0 80px;
    }
    .hero-title {
        font-size: 28px;
    }
    .hero-desc {
        font-size: 15px;
    }
    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }
    .hero-actions .btn {
        width: 100%;
    }
    .section-title {
        font-size: 26px;
    }
    .section-desc {
        font-size: 15px;
    }
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    .footer-main {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .cta-actions {
        flex-direction: column;
    }
    .cta-actions .btn {
        width: 100%;
    }
    .footer-bottom {
        font-size: 12px;
    }
}

/* roulang page: category1 */
/* ============================================================
           设计变量
           ============================================================ */
        :root {
            --bg-body: #070d1a;
            --bg-surface: #0e1626;
            --bg-surface-2: #131d31;
            --bg-card: #101a2e;
            --bg-card-hover: #16213c;
            --primary: #00e5ff;
            --primary-dark: #00b8d0;
            --secondary: #7b5cff;
            --accent: #ffb347;
            --danger: #ff6b81;
            --success: #2dd4a7;
            --text-main: #eef4ff;
            --text-muted: #93a4bf;
            --text-dim: #60708c;
            --border: #1d2a40;
            --border-light: #2a3a58;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 30px rgba(0, 229, 255, 0.12);
            --section-space: 90px;
            --header-h: 72px;
            --font-main: "PingFang SC", "Microsoft YaHei", -apple-system, "Helvetica Neue", Arial, sans-serif;
            --transition: 0.25s ease;
        }

        /* ============================================================
           基础 Reset / Base
           ============================================================ */
        *, *::before, *::after { box-sizing: border-box; }
        html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: var(--font-main);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img { max-width: 100%; display: block; }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        button, input, select, textarea { font: inherit; color: inherit; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; margin: 0 0 .5em; color: #fff; }
        p { margin: 0 0 1em; }
        ul, ol { margin: 0; padding: 0; list-style: none; }
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ============================================================
           通用工具类
           ============================================================ */
        .container {
            max-width: 72.5rem;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .section { padding: var(--section-space) 0; }
        .section-alt {
            background: linear-gradient(180deg, #0b1222 0%, #0e1626 100%);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 52px;
        }
        .section-head h2 {
            font-size: 32px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .section-head p {
            color: var(--text-muted);
            line-height: 1.8;
            font-size: 15px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 100px;
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.22);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.8px;
        }

        /* ============================================================
           按钮
           ============================================================ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            border: 0;
            cursor: pointer;
            border-radius: 10px;
            padding: 0 22px;
            height: 46px;
            line-height: 1;
            transition: all 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #04121a !important;
            box-shadow: 0 4px 18px rgba(0, 229, 255, 0.3);
        }
        .btn-primary:hover {
            box-shadow: 0 6px 26px rgba(0, 229, 255, 0.45);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: rgba(10, 16, 28, 0.45);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.28);
            backdrop-filter: blur(4px);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.15);
            transform: translateY(-2px);
        }
        .btn:active { transform: translateY(0) scale(0.98); }

        /* ============================================================
           顶部导航
           ============================================================ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(7, 13, 26, 0.9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
        }
        .site-header::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -1px;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.45), rgba(123, 92, 255, 0.45), transparent);
            pointer-events: none;
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.28);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.4px;
            color: #fff;
            white-space: nowrap;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 9px 16px;
            border-radius: 10px;
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
            transition: all 0.25s ease;
            text-decoration: none;
        }
        .nav-menu a i { font-size: 14px; }
        .nav-menu a:hover {
            color: var(--primary);
            background: rgba(0, 229, 255, 0.06);
        }
        .nav-menu a.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(0, 229, 255, 0.15), rgba(123, 92, 255, 0.15));
            box-shadow: inset 0 0 0 1px rgba(0, 229, 255, 0.3), 0 0 20px rgba(0, 229, 255, 0.12);
            text-shadow: 0 0 12px rgba(0, 229, 255, 0.35);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-cta .btn { height: 40px; padding: 0 18px; font-size: 14px; }
        .menu-toggle {
            display: none;
            background: var(--bg-surface);
            border: 1px solid var(--border-light);
            width: 42px;
            height: 42px;
            border-radius: 10px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            cursor: pointer;
            transition: border-color 0.3s;
            padding: 0;
        }
        .menu-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-main);
            border-radius: 4px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        .menu-toggle:hover { border-color: var(--primary); }
        .menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .menu-toggle.active span:nth-child(2) { opacity: 0; }
        .menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        /* ============================================================
           Hero / 分类首屏
           ============================================================ */
        .category-hero {
            position: relative;
            padding: 130px 0 100px;
            background-size: cover;
            background-position: center;
            color: #fff;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 13, 26, 0.88) 0%, rgba(7, 13, 26, 0.72) 45%, rgba(7, 13, 26, 0.94) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 18px;
        }
        .breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
        }
        .breadcrumb a:hover { color: var(--primary); }
        .bc-sep { font-size: 11px; color: var(--text-dim); }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 229, 255, 0.1);
            border: 1px solid rgba(0, 229, 255, 0.3);
            color: var(--primary);
            padding: 8px 18px;
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 0 24px rgba(0, 229, 255, 0.1);
            margin-bottom: 22px;
        }
        .hero-content h1 {
            font-size: 44px;
            line-height: 1.22;
            font-weight: 800;
            margin: 0 0 18px;
            background: linear-gradient(92deg, #ffffff 30%, rgba(0, 229, 255, 0.85) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 34px;
            max-width: 640px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ============================================================
           简介板块
           ============================================================ */
        .category-intro { background: var(--bg-body); }
        .intro-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            aspect-ratio: 4 / 3;
            min-height: 300px;
        }
        .intro-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .intro-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(7, 13, 26, 0.4) 100%);
            pointer-events: none;
        }
        .intro-media .media-tag {
            position: absolute;
            left: 18px;
            bottom: 18px;
            z-index: 2;
            background: rgba(7, 13, 26, 0.75);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(0, 229, 255, 0.3);
            color: var(--primary);
            padding: 6px 14px;
            border-radius: 100px;
            font-size: 13px;
            font-weight: 600;
        }
        .intro-copy { padding: 10px 0 10px 30px; }
        .intro-copy h2 {
            font-size: 30px;
            color: #fff;
            margin: 14px 0 16px;
            line-height: 1.35;
        }
        .intro-copy p {
            color: var(--text-muted);
            line-height: 1.85;
            font-size: 15px;
        }
        .info-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 24px;
        }
        .info-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-main);
            font-size: 15px;
        }
        .info-list li i {
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
        }

        /* ============================================================
           指南卡
           ============================================================ */
        .guide-card {
            background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-surface) 100%);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            border-color: rgba(0, 229, 255, 0.4);
            box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35), 0 0 26px rgba(0, 229, 255, 0.08);
        }
        .card-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .guide-card:hover .card-cover img { transform: scale(1.04); }
        .card-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(7, 13, 26, 0.85) 100%);
        }
        .card-cover .cover-index {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(7, 13, 26, 0.7);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--primary);
            font-size: 12px;
            font-weight: 800;
            padding: 5px 12px;
            border-radius: 8px;
            letter-spacing: 1px;
        }
        .card-body { padding: 26px; }
        .card-body h3 {
            font-size: 19px;
            color: #fff;
            margin-bottom: 10px;
        }
        .card-body p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 18px;
        }
        .card-link {
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.25s ease;
        }
        .card-link i { font-size: 13px; transition: transform 0.25s; }
        .card-link:hover i { transform: translateX(4px); }

        /* ============================================================
           新手指引步骤
           ============================================================ */
        .steps-list {
            max-width: 760px;
            margin: 0 auto;
            position: relative;
            padding-left: 32px;
        }
        .steps-list::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 12px;
            bottom: 12px;
            width: 2px;
            background: linear-gradient(180deg, var(--primary), var(--secondary));
            opacity: 0.45;
        }
        .step-item {
            position: relative;
            padding: 0 0 38px 28px;
        }
        .step-item:last-child { padding-bottom: 0; }
        .step-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 5px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--bg-body);
            border: 4px solid var(--primary);
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.4);
        }
        .step-num {
            font-size: 12px;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: 1.5px;
        }
        .step-item h3 {
            color: #fff;
            font-size: 18px;
            margin: 8px 0 8px;
        }
        .step-item p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.75;
            margin: 0;
        }

        /* ============================================================
           推荐内容 / 最新资讯列表
           ============================================================ */
        .post-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 100%;
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .post-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 229, 255, 0.35);
            box-shadow: var(--shadow-md);
        }
        .post-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .post-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .post-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 45%, rgba(7, 13, 26, 0.8) 100%);
        }
        .post-tag {
            position: absolute;
            left: 14px;
            bottom: 14px;
            z-index: 2;
            background: rgba(0, 229, 255, 0.18);
            border: 1px solid rgba(0, 229, 255, 0.35);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 100px;
            backdrop-filter: blur(4px);
        }
        .post-body { padding: 20px 22px 22px; }
        .post-body h3 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .post-body p {
            color: var(--text-muted);
            font-size: 13px;
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .post-meta {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-dim);
        }
        .post-meta i { font-size: 11px; }

        /* ============================================================
           使用技巧
           ============================================================ */
        .tips-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .tip-card {
            background: linear-gradient(145deg, var(--bg-surface-2), var(--bg-card));
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px;
            height: 100%;
            transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
        }
        .tip-card:hover {
            border-color: rgba(0, 229, 255, 0.3);
            box-shadow: 0 0 28px rgba(0, 229, 255, 0.07);
            transform: translateY(-4px);
        }
        .tip-icon {
            font-size: 26px;
            color: var(--primary);
            background: rgba(0, 229, 255, 0.1);
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }
        .tip-card h3 {
            font-size: 18px;
            color: #fff;
            margin-bottom: 10px;
        }
        .tip-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.75;
            margin: 0;
        }

        /* ============================================================
           FAQ 手风琴
           ============================================================ */
        .faq-section .accordion {
            max-width: 840px;
            margin: 0 auto;
            background: transparent;
        }
        .accordion-item {
            list-style: none;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .accordion-item.is-active {
            border-color: rgba(0, 229, 255, 0.3);
            box-shadow: 0 0 22px rgba(0, 229, 255, 0.07);
        }
        .accordion-title {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 18px 24px;
            color: var(--text-main);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.5;
            background: transparent;
            border: 0;
            transition: color 0.3s ease;
        }
        .accordion-title:hover {
            color: var(--primary);
            background: transparent;
        }
        .accordion-title::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 12px;
            color: var(--text-muted);
            border: 0;
            transform: none;
            width: auto;
            height: auto;
            transition: transform 0.3s ease, color 0.3s ease;
            flex-shrink: 0;
        }
        .accordion-item.is-active .accordion-title::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .accordion-content {
            padding: 0 24px 22px;
            border: 0;
            background: transparent;
            color: var(--text-muted);
            line-height: 1.75;
            font-size: 14px;
        }
        .accordion-content p { margin: 0; }

        /* ============================================================
           CTA 板块
           ============================================================ */
        .cta-box {
            position: relative;
            background: linear-gradient(135deg, rgba(0, 229, 255, 0.14), rgba(123, 92, 255, 0.14)), var(--bg-surface);
            border: 1px solid rgba(0, 229, 255, 0.25);
            border-radius: 24px;
            text-align: center;
            padding: 56px 40px;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.15), transparent 70%);
        }
        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(123, 92, 255, 0.15), transparent 70%);
        }
        .cta-box > * { position: relative; z-index: 1; }
        .cta-icon {
            display: inline-flex;
            width: 66px;
            height: 66px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: #fff;
            box-shadow: 0 8px 24px rgba(0, 229, 255, 0.3);
            margin-bottom: 22px;
        }
        .cta-box h2 { font-size: 28px; color: #fff; margin-bottom: 12px; }
        .cta-box p {
            color: var(--text-muted);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

        /* ============================================================
           页脚
           ============================================================ */
        .site-footer {
            background: #060b16;
            border-top: 1px solid var(--border);
            padding: 64px 0 30px;
        }
        .footer-main {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .logo { margin-bottom: 16px; }
        .footer-desc {
            color: var(--text-muted);
            line-height: 1.75;
            font-size: 14px;
            margin-top: 14px;
            max-width: 340px;
        }
        .footer-title {
            color: #fff;
            font-size: 16px;
            margin-bottom: 16px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 7px;
            transition: all 0.25s ease;
        }
        .footer-links a i { font-size: 11px; color: var(--primary); }
        .footer-links a:hover {
            color: var(--primary);
            transform: translateX(4px);
        }
        .footer-bottom {
            padding-top: 26px;
            text-align: center;
            color: var(--text-dim);
            font-size: 13px;
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--primary); }

        /* ============================================================
           响应式断点
           ============================================================ */
        @media (max-width: 1024px) {
            :root { --section-space: 70px; }
            .hero-content h1 { font-size: 36px; }
            .intro-copy { padding-left: 0; }
            .footer-main { grid-template-columns: 1fr 1fr; gap: 36px; }
        }

        @media (max-width: 900px) {
            .nav-menu {
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(9, 15, 28, 0.98);
                border-bottom: 1px solid var(--border);
                padding: 16px 20px;
                gap: 6px;
                display: none;
                box-shadow: 0 18px 30px rgba(0, 0, 0, 0.4);
            }
            .nav-menu.open { display: flex; }
            .nav-menu a {
                padding: 12px 16px;
                border-radius: 10px;
            }
            .nav-cta { display: none; }
            .menu-toggle { display: flex; }
            .tips-grid { grid-template-columns: 1fr; }
        }

        @media (max-width: 768px) {
            .category-hero { padding: 100px 0 70px; }
            .hero-content h1 { font-size: 30px; }
            .hero-desc { font-size: 16px; }
            .section-head h2 { font-size: 24px; }
            .section-head p { font-size: 14px; }
            .intro-copy { padding-top: 24px; }
            .footer-main { grid-template-columns: 1fr; gap: 30px; }
            .steps-list { padding-left: 24px; }
            .step-item::before { left: -24px; }
            .cta-box { padding: 42px 24px; }
            .cta-box h2 { font-size: 23px; }
            .section { padding: 58px 0; }
        }

        @media (max-width: 520px) {
            .hero-content h1 { font-size: 25px; }
            .hero-desc { font-size: 15px; }
            .hero-actions .btn { width: 100%; }
            .hero-badge { font-size: 12px; }
            .logo-text { font-size: 17px; }
            .logo-icon { width: 34px; height: 34px; font-size: 14px; }
            .section-head { margin-bottom: 36px; }
            .section-head h2 { font-size: 21px; }
            .card-body { padding: 20px; }
            .accordion-title { padding: 16px 18px; font-size: 14px; }
            .accordion-content { padding: 0 18px 18px; }
            .cta-actions .btn { width: 100%; }
            .footer-bottom { font-size: 12px; }
        }

/* roulang page: article */
:root {
    --bg-body: #080c14;
    --bg-deep: #05080f;
    --bg-card: #101826;
    --bg-card-hover: #162238;
    --bg-soft: #131c2e;
    --border: rgba(148, 163, 184, 0.13);
    --border-light: rgba(148, 163, 184, 0.08);
    --text-main: #e6edf3;
    --text-secondary: #a9b7c6;
    --text-muted: #738496;
    --accent: #00e0ff;
    --accent-deep: #0891b2;
    --accent-2: #7c5cff;
    --accent-glow: rgba(0, 224, 255, 0.3);
    --accent-2-glow: rgba(124, 92, 255, 0.28);
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
    --shadow-glow: 0 0 30px rgba(0, 224, 255, 0.18);
    --section-space: 72px;
    --header-height: 76px;
    --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --transition: 0.25s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-main);
    background: var(--bg-body);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
    color: #7dffff;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-main);
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 0.5em;
}

p {
    margin: 0 0 1em;
}

ul, ol {
    padding-left: 1.25rem;
}

button {
    font-family: inherit;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.grid-x {
    display: flex;
    flex-wrap: wrap;
}

.cell {
    flex: 0 0 auto;
}

.large-8 {
    width: 66.6667%;
}

.large-4 {
    width: 33.3333%;
}

@media (max-width: 1024px) {
    .large-8, .large-4 {
        width: 100%;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1.4;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}

.btn i {
    font-size: 0.9em;
}

.btn-primary {
    background: linear-gradient(135deg, #00e0ff, #00b8d9);
    color: #07121a;
    box-shadow: 0 0 22px rgba(0, 224, 255, 0.25), 0 8px 24px rgba(0, 0, 0, 0.3);
}

.btn-primary:hover {
    color: #041018;
    transform: translateY(-2px);
    box-shadow: 0 0 34px rgba(0, 224, 255, 0.4), 0 12px 32px rgba(0, 0, 0, 0.35);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 0 16px rgba(0, 224, 255, 0.25);
}

.btn-ghost {
    background: transparent;
    border: 1px solid rgba(0, 224, 255, 0.55);
    color: var(--accent);
}

.btn-ghost:hover {
    background: rgba(0, 224, 255, 0.1);
    border-color: var(--accent);
    color: #7dffff;
    transform: translateY(-2px);
    box-shadow: 0 0 24px rgba(0, 224, 255, 0.15);
}

.btn-block {
    display: flex;
    width: 100%;
    justify-content: center;
    margin-bottom: 10px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-accent {
    background: rgba(0, 224, 255, 0.12);
    border: 1px solid rgba(0, 224, 255, 0.3);
    color: var(--accent);
}

.badge-outline {
    background: rgba(124, 92, 255, 0.1);
    border: 1px solid rgba(124, 92, 255, 0.3);
    color: #c4b5fd;
}

.section-head {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 10px;
    background: rgba(0, 224, 255, 0.1);
    border: 1px solid rgba(0, 224, 255, 0.25);
    padding: 5px 18px;
    border-radius: 999px;
}

.section-head h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: 12px;
}

.section-head p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.site-header {
    background: rgba(5, 8, 15, 0.92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
}

.site-header::after {
    content: "";
    display: block;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), transparent);
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    opacity: 0.85;
    pointer-events: none;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(0, 224, 255, 0.2), rgba(124, 92, 255, 0.2));
    border: 1px solid rgba(0, 224, 255, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.15rem;
    box-shadow: 0 0 18px rgba(0, 224, 255, 0.2);
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 0.5px;
    background: linear-gradient(90deg, #ffffff, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.nav-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu li {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    position: relative;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.96rem;
    padding: 8px 0;
    text-decoration: none;
    display: block;
    transition: color var(--transition);
}

.nav-menu a i {
    margin-right: 6px;
    font-size: 0.9rem;
}

.nav-menu a:hover {
    color: var(--text-main);
}

.nav-menu a.active {
    color: var(--accent);
    text-shadow: 0 0 18px var(--accent-glow);
}

.nav-menu a.active::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    box-shadow: 0 0 12px var(--accent);
}

.nav-cta {
    flex-shrink: 0;
}

.nav-cta .btn {
    padding: 9px 20px;
    font-size: 0.88rem;
}

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

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: all 0.3s ease;
    display: block;
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.article-hero {
    position: relative;
    padding: 76px 0 64px;
    background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    border-bottom: 1px solid var(--border);
}

.article-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(5, 8, 15, 0.85);
}

.article-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at top, rgba(0, 224, 255, 0.1), transparent 60%);
}

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

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 26px;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition);
}

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

.breadcrumb .current {
    color: var(--text-main);
    max-width: 320px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.breadcrumb i {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.article-hero-content {
    max-width: 860px;
}

.article-hero-content .badge {
    margin-bottom: 18px;
}

.article-hero-content h1 {
    font-size: clamp(1.9rem, 4vw, 2.9rem);
    line-height: 1.3;
    margin-bottom: 16px;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.article-hero-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 720px;
    margin-bottom: 24px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.article-meta i {
    color: var(--accent);
    font-size: 0.9rem;
}

.article-body-section {
    padding: 56px 0 72px;
    background: var(--bg-body);
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
    margin-bottom: 32px;
}

.article-content {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--text-secondary);
}

.article-content p {
    margin-bottom: 1.4em;
}

.article-content h2,
.article-content h3,
.article-content h4 {
    color: var(--text-main);
    margin-top: 1.8em;
    margin-bottom: 0.7em;
}

.article-content h2 {
    font-size: 1.6rem;
}

.article-content h3 {
    font-size: 1.3rem;
}

.article-content ul,
.article-content ol {
    margin-bottom: 1.4em;
    padding-left: 1.5rem;
}

.article-content li {
    margin-bottom: 0.4em;
}

.article-content a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-content a:hover {
    color: #7dffff;
}

.article-content img {
    border-radius: var(--radius-sm);
    margin: 22px 0;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border);
}

.article-content blockquote {
    border-left: 3px solid var(--accent);
    background: rgba(0, 224, 255, 0.06);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 16px 22px;
    margin: 24px 0;
    color: var(--text-secondary);
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 0.95rem;
    background: var(--bg-soft);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.article-content table th,
.article-content table td {
    border: 1px solid var(--border);
    padding: 12px 16px;
    text-align: left;
}

.article-content table th {
    background: rgba(0, 224, 255, 0.08);
    color: var(--text-main);
    font-weight: 600;
}

.article-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 30px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.article-share {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.article-share a {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: all var(--transition);
    text-decoration: none;
}

.article-share a:hover {
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 16px rgba(0, 224, 255, 0.2);
    transform: translateY(-2px);
}

.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 22px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.sidebar-card-glow {
    border-color: rgba(0, 224, 255, 0.25);
}

.sidebar-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.sidebar-title i {
    color: var(--accent);
    width: 22px;
    text-align: center;
}

.sidebar-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 14px;
}

.sidebar-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 0.92rem;
    color: var(--text-secondary);
}

.sidebar-list li i {
    color: var(--accent);
    font-size: 0.85rem;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 500;
    transition: all var(--transition);
    text-decoration: none;
}

.sidebar-nav a:hover {
    color: var(--accent);
    border-color: rgba(0, 224, 255, 0.35);
    box-shadow: 0 0 18px rgba(0, 224, 255, 0.1);
    transform: translateX(4px);
}

.sidebar-nav a i {
    color: var(--accent);
    width: 18px;
    text-align: center;
}

.not-found-section {
    padding: 90px 0;
    background: var(--bg-body);
}

.not-found-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 60px 40px;
    text-align: center;
    max-width: 580px;
    margin: 0 auto;
    box-shadow: var(--shadow);
}

.not-found-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 22px;
    border-radius: 50%;
    background: rgba(0, 224, 255, 0.1);
    border: 1px solid rgba(0, 224, 255, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.6rem;
}

.not-found-card h2 {
    font-size: 1.8rem;
    margin-bottom: 12px;
}

.not-found-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.related-section {
    padding: 72px 0;
    background: var(--bg-deep);
    border-top: 1px solid var(--border-light);
    position: relative;
}

.related-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 420px;
    max-width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 224, 255, 0.5), transparent);
}

.related-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
    border-color: rgba(0, 224, 255, 0.3);
}

.related-img {
    position: relative;
    display: block;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    text-decoration: none;
    background: var(--bg-soft);
}

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

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

.related-img::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(5, 8, 15, 0.6));
}

.related-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
    background: rgba(0, 224, 255, 0.18);
    border: 1px solid rgba(0, 224, 255, 0.4);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 999px;
    backdrop-filter: blur(6px);
}

.related-info {
    padding: 22px;
}

.related-info h3 {
    font-size: 1.08rem;
    margin-bottom: 8px;
}

.related-info h3 a {
    color: var(--text-main);
    text-decoration: none;
    transition: color var(--transition);
}

.related-info h3 a:hover {
    color: var(--accent);
}

.related-info p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.65;
    margin-bottom: 14px;
}

.link-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--accent);
    text-decoration: none;
    transition: gap var(--transition), color var(--transition);
}

.link-more:hover {
    color: #7dffff;
    gap: 10px;
}

.cta-section {
    padding: 64px 0;
    background: var(--bg-deep);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 20%, rgba(0, 224, 255, 0.1), transparent 50%),
                radial-gradient(ellipse at 70% 80%, rgba(124, 92, 255, 0.12), transparent 50%);
}

.cta-inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
    padding: 36px 44px;
    border: 1px solid rgba(0, 224, 255, 0.22);
    border-radius: var(--radius);
    background: rgba(16, 24, 38, 0.7);
    backdrop-filter: blur(8px);
    box-shadow: 0 0 40px rgba(0, 224, 255, 0.08);
}

.cta-kicker {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 6px;
    display: block;
}

.cta-content h2 {
    font-size: clamp(1.4rem, 2.4vw, 1.9rem);
    margin-bottom: 8px;
}

.cta-content p {
    color: var(--text-secondary);
    margin: 0;
}

.cta-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.faq-section {
    padding: 72px 0;
    background: var(--bg-body);
}

.faq-list {
    max-width: 960px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item:hover {
    border-color: rgba(0, 224, 255, 0.3);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.faq-item summary {
    cursor: pointer;
    padding: 18px 22px;
    font-weight: 600;
    font-size: 0.98rem;
    color: var(--text-main);
    list-style: none;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: color var(--transition);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary i {
    color: var(--accent);
    font-size: 1rem;
}

.faq-item summary:hover {
    color: var(--accent);
}

.faq-item[open] {
    border-color: rgba(0, 224, 255, 0.35);
}

.faq-item[open] summary {
    color: var(--accent);
}

.faq-item p {
    padding: 0 22px 18px;
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.94rem;
    line-height: 1.75;
}

.site-footer {
    background: var(--bg-deep);
    border-top: 1px solid var(--border);
    padding: 54px 0 0;
}

.footer-main {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
    padding-bottom: 34px;
}

.footer-brand {
    flex: 1 1 280px;
    max-width: 400px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.75;
    margin-bottom: 0;
}

.footer-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(0, 224, 255, 0.2);
    position: relative;
}

.footer-title::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 34px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    box-shadow: 0 0 10px var(--accent);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-decoration: none;
    transition: color var(--transition), padding-left var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-links a i {
    font-size: 0.8rem;
    color: var(--text-muted);
    transition: color var(--transition), transform var(--transition);
}

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

.footer-links a:hover i {
    color: var(--accent);
    transform: translateX(2px);
}

.footer-bottom {
    border-top: 1px solid var(--border-light);
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-bottom a {
    color: var(--text-secondary);
    text-decoration: none;
}

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

@media (max-width: 1024px) {
    :root {
        --section-space: 56px;
    }

    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: rgba(5, 8, 15, 0.98);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        align-items: flex-start;
        padding: 20px 24px;
        gap: 4px;
        display: none;
        box-shadow: 0 24px 50px rgba(0, 0, 0, 0.6);
        max-height: calc(100vh - var(--header-height));
        overflow-y: auto;
    }

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

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        padding: 12px 16px;
        border-radius: var(--radius-sm);
        font-size: 1rem;
    }

    .nav-menu a:hover {
        background: rgba(0, 224, 255, 0.06);
    }

    .nav-menu a.active {
        background: rgba(0, 224, 255, 0.08);
    }

    .nav-menu a.active::after {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

    .cta-inner {
        flex-direction: column;
        align-items: flex-start;
        padding: 30px;
    }

    .cta-actions {
        width: 100%;
    }

    .footer-main {
        gap: 28px;
    }
}

@media (max-width: 768px) {
    .article-hero {
        padding: 54px 0 44px;
    }

    .article-hero-desc {
        font-size: 0.98rem;
    }

    .article-card {
        padding: 26px;
    }

    .article-content {
        font-size: 1rem;
    }

    .article-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .related-section,
    .faq-section {
        padding: 52px 0;
    }

    .footer-main {
        flex-direction: column;
    }

    .faq-item summary {
        padding: 16px 18px;
    }

    .faq-item p {
        padding: 0 18px 16px;
    }
}

@media (max-width: 520px) {
    .container {
        padding: 0 18px;
    }

    .logo-text {
        font-size: 1.05rem;
    }

    .logo-icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }

    .breadcrumb {
        font-size: 0.82rem;
        gap: 6px;
    }

    .breadcrumb .current {
        max-width: 180px;
    }

    .article-hero-content h1 {
        font-size: 1.7rem;
    }

    .article-meta {
        gap: 12px;
    }

    .article-card {
        padding: 20px;
    }

    .article-content {
        font-size: 0.97rem;
        line-height: 1.85;
    }

    .related-info {
        padding: 18px;
    }

    .cta-inner {
        padding: 24px 20px;
    }

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

    .sidebar-card {
        padding: 20px;
    }

    .not-found-card {
        padding: 40px 24px;
    }

    .section-head {
        margin-bottom: 34px;
    }

    .section-head h2 {
        font-size: 1.55rem;
    }
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

/* roulang page: category2 */
:root {
  --primary: #00e5ff;
  --primary-glow: rgba(0, 229, 255, 0.35);
  --primary-soft: rgba(0, 229, 255, 0.1);
  --secondary: #ff2d55;
  --secondary-glow: rgba(255, 45, 85, 0.35);
  --dark-900: #060a12;
  --dark-800: #0b111c;
  --dark-700: #111927;
  --dark-600: #182336;
  --card-bg: #111b2b;
  --text-strong: #eaf2ff;
  --text-main: #c6d4e8;
  --text-weak: #7e91ad;
  --border: rgba(148, 163, 184, 0.14);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 9px;
  --shadow-lg: 0 24px 58px rgba(0, 0, 0, 0.48);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.34);
  --shadow-primary: 0 0 24px var(--primary-glow);
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--dark-900);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ====== 导航 ====== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(6, 10, 18, 0.86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.35);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 28px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.08rem;
  letter-spacing: 0.4px;
  color: var(--text-strong);
  white-space: nowrap;
}

.logo-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 13px;
  color: #fff;
  font-size: 1rem;
  box-shadow: 0 0 22px var(--primary-glow);
  flex-shrink: 0;
}

.logo-text {
  background: linear-gradient(90deg, #ffffff 20%, var(--primary) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
}

.nav-menu a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 18px;
  border-radius: 12px;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text-weak);
  border: 1px solid transparent;
  transition: var(--transition);
  line-height: 1.4;
}

.nav-menu a i {
  font-size: 0.85rem;
  opacity: 0.75;
}

.nav-menu a:hover {
  color: #fff;
  background: var(--primary-soft);
  border-color: rgba(0, 229, 255, 0.2);
}

.nav-menu a.active {
  color: var(--primary);
  background: var(--primary-soft);
  border-color: rgba(0, 229, 255, 0.35);
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.14), inset 0 0 12px rgba(0, 229, 255, 0.06);
  text-shadow: 0 0 12px rgba(0, 229, 255, 0.3);
}

.nav-cta {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  cursor: pointer;
  align-items: center;
  background: rgba(255, 255, 255, 0.03);
  flex-shrink: 0;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-strong);
  border-radius: 3px;
  transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ====== 按钮 ====== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 28px;
  border-radius: 999px;
  font-size: 0.93rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  line-height: 1.5;
  white-space: nowrap;
}

.btn i {
  font-size: 0.88rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #00b3cc);
  color: #031219;
  box-shadow: 0 6px 22px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px var(--primary-glow);
  color: #031219;
}

.btn-outline {
  border: 1px solid rgba(0, 229, 255, 0.4);
  color: var(--primary);
  background: rgba(0, 229, 255, 0.05);
}

.btn-outline:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.15);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary), #ff5a7e);
  color: #fff;
  box-shadow: 0 6px 22px var(--secondary-glow);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px var(--secondary-glow);
  color: #fff;
}

/* ====== 页面 Banner ====== */
.page-banner {
  position: relative;
  padding: 108px 0 78px;
  background: linear-gradient(135deg, rgba(6, 10, 18, 0.94), rgba(17, 25, 39, 0.8)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.page-banner::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -100px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.2), transparent 62%);
  filter: blur(50px);
  pointer-events: none;
}

.page-banner::after {
  content: '';
  position: absolute;
  bottom: -140px;
  left: -80px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(255, 45, 85, 0.16), transparent 60%);
  filter: blur(56px);
  pointer-events: none;
}

.banner-inner {
  position: relative;
  z-index: 2;
  max-width: 860px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 26px;
  font-size: 0.85rem;
  color: var(--text-weak);
}

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

.breadcrumb i {
  font-size: 0.7rem;
  opacity: 0.6;
}

.page-banner h1 {
  margin: 0 0 18px;
  font-size: clamp(2.2rem, 4.6vw, 3.4rem);
  font-weight: 900;
  color: #fff;
  letter-spacing: 1px;
  line-height: 1.2;
  text-shadow: 0 0 30px rgba(0, 229, 255, 0.2);
}

.page-banner h1 .neon {
  background: linear-gradient(90deg, var(--primary), #7aefff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.banner-text {
  font-size: 1.05rem;
  color: var(--text-main);
  max-width: 680px;
  margin: 0;
  line-height: 1.9;
}

.banner-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}

.banner-tag i {
  color: var(--primary);
}

.banner-tag:hover {
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

.banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 36px;
}

/* ====== 通用板块 ====== */
.section-block {
  padding: 88px 0;
}

.section-block + .section-block {
  border-top: 1px solid var(--border);
}

.section-head {
  margin-bottom: 46px;
  max-width: 760px;
}

.section-head .section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--primary);
  background: var(--primary-soft);
  border: 1px solid rgba(0, 229, 255, 0.2);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-head h2 {
  margin: 0 0 14px;
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  letter-spacing: 0.5px;
}

.section-head p {
  margin: 0;
  color: var(--text-weak);
  font-size: 1rem;
  line-height: 1.85;
}

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

/* ====== 热门标签 ====== */
.topic-tags {
  padding: 0 0 8px;
  margin-top: -32px;
  position: relative;
  z-index: 3;
}

.tags-panel {
  background: var(--dark-800);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 30px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-md);
}

.tags-panel .tags-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  margin-right: 6px;
}

.tags-panel .tags-title i {
  color: var(--primary);
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 17px;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
}

.tag-pill:hover {
  color: var(--primary);
  border-color: rgba(0, 229, 255, 0.4);
  background: var(--primary-soft);
  transform: translateY(-2px);
}

.tag-pill.active {
  color: #06131a;
  background: linear-gradient(135deg, var(--primary), #7aefff);
  border-color: transparent;
  box-shadow: 0 4px 16px var(--primary-glow);
  font-weight: 700;
}

/* ====== 最新资讯卡片 ====== */
.news-grid .news-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.news-grid .news-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.25), var(--shadow-lg);
  border-color: rgba(0, 229, 255, 0.35);
}

.news-card-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--dark-600);
}

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

.news-card:hover .news-card-thumb img {
  transform: scale(1.05);
}

.news-card-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(6, 10, 18, 0.72) 100%);
}

.news-cat {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 13px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  background: rgba(6, 10, 18, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
}

.news-card-body {
  padding: 24px 24px 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.78rem;
  color: var(--text-weak);
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.news-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-meta i {
  color: var(--primary);
  font-size: 0.72rem;
}

.news-card h3 {
  margin: 0 0 12px;
  font-size: 1.14rem;
  font-weight: 700;
  line-height: 1.5;
  color: #fff;
  transition: var(--transition);
}

.news-card h3 a:hover {
  color: var(--primary);
}

.news-card p {
  margin: 0 0 18px;
  font-size: 0.9rem;
  color: var(--text-weak);
  line-height: 1.8;
  flex: 1;
}

.news-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.news-footer .read-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--primary);
}

.news-footer .read-more:hover {
  gap: 11px;
}

.news-footer .read-time {
  font-size: 0.78rem;
  color: var(--text-weak);
}

/* ====== 焦点赛事 ====== */
.featured-grid .featured-main {
  background: linear-gradient(135deg, rgba(17, 27, 43, 0.94), rgba(17, 27, 43, 0.7)), url('/assets/images/coverpic/cover-7.png') center / cover no-repeat;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  min-height: 420px;
  padding: 38px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.featured-grid .featured-main:hover {
  border-color: rgba(0, 229, 255, 0.35);
  box-shadow: 0 0 40px rgba(0, 229, 255, 0.12), var(--shadow-lg);
}

.featured-badge {
  position: absolute;
  top: 22px;
  left: 22px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), #00b3cc);
  color: #031219;
  font-size: 0.82rem;
  font-weight: 800;
  box-shadow: 0 4px 18px var(--primary-glow);
}

.featured-main h3 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  color: #fff;
  margin: 0 0 12px;
  font-weight: 800;
  line-height: 1.35;
}

.featured-main p {
  color: var(--text-main);
  max-width: 520px;
  margin: 0 0 24px;
  line-height: 1.85;
}

.featured-side-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex;
  gap: 18px;
  align-items: center;
  transition: var(--transition);
  height: 100%;
}

.featured-side-item:hover {
  border-color: rgba(0, 229, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.featured-side-icon {
  width: 62px;
  height: 62px;
  flex-shrink: 0;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--primary);
  background: var(--primary-soft);
  border: 1px solid rgba(0, 229, 255, 0.2);
}

.featured-side-item h4 {
  margin: 0 0 6px;
  font-size: 1rem;
  color: #fff;
  font-weight: 700;
}

.featured-side-item p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-weak);
  line-height: 1.7;
}

/* ====== 数据面板 ====== */
.stats-panel {
  background: linear-gradient(135deg, var(--dark-800), var(--dark-700));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 52px 36px;
  position: relative;
  overflow: hidden;
}

.stats-panel::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -60px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.18), transparent 65%);
  filter: blur(40px);
}

.stat-card {
  text-align: center;
  padding: 18px 12px;
  position: relative;
}

.stat-num {
  font-size: clamp(2rem, 3.6vw, 2.9rem);
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), #7aefff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.2;
  text-shadow: 0 0 30px rgba(0, 229, 255, 0.25);
}

.stat-label {
  margin-top: 8px;
  font-size: 0.92rem;
  color: var(--text-weak);
  font-weight: 600;
}

/* ====== FAQ ====== */
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(0, 229, 255, 0.25);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  color: #fff;
  font-size: 0.98rem;
  font-weight: 700;
  text-align: left;
  background: transparent;
  transition: var(--transition);
}

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

.faq-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--primary);
  background: var(--primary-soft);
  border: 1px solid rgba(0, 229, 255, 0.2);
  flex-shrink: 0;
  transition: var(--transition);
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #06131a;
}

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

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-weak);
  font-size: 0.91rem;
  line-height: 1.85;
}

/* ====== CTA ====== */
.cta-section {
  padding: 80px 0 96px;
}

.cta-panel {
  position: relative;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.12), rgba(255, 45, 85, 0.1)), var(--dark-800);
  border: 1px solid rgba(0, 229, 255, 0.25);
  border-radius: 24px;
  padding: 60px 56px;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-panel::before {
  content: '';
  position: absolute;
  top: -90px;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 220px;
  background: radial-gradient(ellipse, rgba(0, 229, 255, 0.2), transparent 65%);
  filter: blur(46px);
  pointer-events: none;
}

.cta-panel h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  color: #fff;
  font-weight: 800;
  margin: 0 0 14px;
}

.cta-panel p {
  color: var(--text-main);
  max-width: 560px;
  margin: 0 auto 32px;
  font-size: 1rem;
  line-height: 1.85;
}

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

/* ====== 页脚 ====== */
.site-footer {
  background: #04070d;
  border-top: 1px solid var(--border);
  padding-top: 62px;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--dark-900), var(--primary), var(--secondary), var(--dark-900));
  opacity: 0.7;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 42px;
}

.footer-brand .logo {
  margin-bottom: 18px;
}

.footer-desc {
  margin: 0;
  color: var(--text-weak);
  font-size: 0.9rem;
  line-height: 1.85;
  max-width: 420px;
}

.footer-title {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  margin: 8px 0 18px;
  letter-spacing: 0.5px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-weak);
  font-size: 0.88rem;
  transition: var(--transition);
}

.footer-links a i {
  font-size: 0.7rem;
  color: var(--primary);
  opacity: 0.7;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-bottom p {
  margin: 0;
  color: var(--text-weak);
  font-size: 0.83rem;
}

.footer-bottom a {
  color: var(--text-main);
}

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

/* ====== 响应式 ====== */
@media (max-width: 1024px) {
  .container {
    padding: 0 24px;
  }

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

  .section-block {
    padding: 72px 0;
  }

  .featured-grid .featured-main {
    min-height: 360px;
    padding: 30px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 76px;
    right: -100%;
    width: min(320px, 86vw);
    height: calc(100vh - 76px);
    background: rgba(6, 10, 18, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 28px 22px;
    gap: 8px;
    border-left: 1px solid var(--border);
    box-shadow: -20px 0 50px rgba(0, 0, 0, 0.5);
    transition: right 0.35s ease;
    overflow-y: auto;
  }

  .nav-menu.open {
    right: 0;
  }

  .nav-menu a {
    width: 100%;
    font-size: 1rem;
    padding: 14px 16px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-cta .btn {
    display: none;
  }

  .page-banner {
    padding: 84px 0 64px;
  }

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

  .footer-main {
    grid-template-columns: 1fr;
    gap: 34px;
  }

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

  .featured-side-item {
    margin-bottom: 16px;
  }

  .cta-panel {
    padding: 44px 28px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .navbar {
    gap: 12px;
    height: 68px;
  }

  .logo-text {
    font-size: 0.92rem;
  }

  .logo-icon {
    width: 38px;
    height: 38px;
  }

  .page-banner {
    padding: 64px 0 52px;
  }

  .page-banner h1 {
    font-size: 1.85rem;
  }

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

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

  .tags-panel {
    padding: 18px;
  }

  .news-card h3 {
    font-size: 1.04rem;
  }

  .featured-grid .featured-main {
    padding: 22px;
    min-height: 320px;
  }

  .featured-side-item {
    flex-direction: column;
    text-align: center;
    padding: 22px;
  }

  .stats-panel {
    padding: 36px 18px;
  }

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

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

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