/* roulang page: index */
:root {
    --bg-page: #121212;
    --bg-section: #181818;
    --bg-card: rgba(255,255,255,0.03);
    --bg-contrast: #F5F2EC;
    --text-primary: #EDEAE4;
    --text-secondary: #A09C94;
    --text-muted: #6E6A64;
    --accent: #C8A45D;
    --accent-hover: #DDBB7A;
    --border-line: rgba(255,255,255,0.08);
    --border-contrast: rgba(0,0,0,0.08);
    --success: #4CAF7D;
    --danger: #B34A3A;
    --font-family: -apple-system, "PingFang SC", "Noto Sans SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
    --radius: 12px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.15);
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: var(--font-family);
    background: var(--bg-page);
    color: var(--text-primary);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color .25s ease;
}
a:hover {
    color: var(--accent);
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
button,
input {
    font-family: inherit;
    border: none;
    outline: none;
}
.container {
    max-width: 1280px;
    padding-left: 24px;
    padding-right: 24px;
}
/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(18,18,18,0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-line);
    transition: all .25s ease;
}
.site-header.scrolled .header-nav {
    display: none;
}
.site-header.scrolled .header-top {
    padding-top: 8px;
    padding-bottom: 8px;
}
.header-top {
    padding: 14px 0;
    transition: padding .25s ease;
}
.header-top-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.brand-mark {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--accent), #8a6a2f);
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 800;
    color: #121212;
    line-height: 1;
    flex-shrink: 0;
}
.brand-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: .02em;
    line-height: 1.2;
    display: flex;
    flex-direction: column;
}
.brand-text small {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: .05em;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}
.header-search {
    position: relative;
    display: flex;
    align-items: center;
}
.search-toggle {
    background: transparent;
    color: var(--text-secondary);
    font-size: 16px;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .25s ease;
}
.search-toggle:hover {
    color: var(--accent);
    background: rgba(255,255,255,0.06);
}
.search-input-wrap {
    position: absolute;
    right: 40px;
    top: 50%;
    transform: translateY(-50%) scaleX(0);
    transform-origin: right center;
    opacity: 0;
    pointer-events: none;
    transition: all .25s ease;
    z-index: 10;
}
.search-input-wrap.open {
    transform: translateY(-50%) scaleX(1);
    opacity: 1;
    pointer-events: auto;
}
.search-input {
    width: 240px;
    height: 36px;
    background: var(--bg-section);
    border: 1px solid var(--border-line);
    border-radius: 18px;
    padding: 0 14px 0 38px;
    color: var(--text-primary);
    font-size: 14px;
    transition: border-color .25s ease;
}
.search-input:focus {
    border-color: var(--accent);
}
.search-input::placeholder {
    color: var(--text-muted);
}
.header-hotwords {
    display: flex;
    align-items: center;
    gap: 8px;
}
.hotword {
    font-size: 12px;
    color: var(--text-secondary);
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border-line);
    border-radius: 99px;
    padding: 4px 14px;
    white-space: nowrap;
    transition: all .25s ease;
}
.hotword:hover {
    color: var(--accent);
    border-color: rgba(200,164,93,0.3);
}
.btn-member {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    border: 1px solid rgba(200,164,93,0.4);
    border-radius: 6px;
    padding: 6px 18px;
    white-space: nowrap;
    transition: all .25s ease;
}
.btn-member:hover {
    background: rgba(200,164,93,0.12);
    color: var(--accent-hover);
    border-color: var(--accent);
}
.header-nav {
    border-top: 1px solid var(--border-line);
    transition: border-color .25s ease;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 0;
}
.nav-link-custom {
    font-size: 15px;
    color: var(--text-secondary);
    padding: 8px 20px;
    border-bottom: 2px solid transparent;
    transition: all .25s ease;
    white-space: nowrap;
}
.nav-link-custom:hover {
    color: var(--text-primary);
    border-bottom-color: rgba(200,164,93,0.5);
}
.nav-link-custom.active {
    color: var(--text-primary);
    font-weight: 600;
    border-bottom-color: var(--accent);
}
.nav-trends {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
}
.nav-trends span {
    display: flex;
    align-items: center;
    gap: 5px;
}
.nav-trends span::before {
    content: '';
    width: 4px;
    height: 4px;
    background: var(--accent);
    border-radius: 50%;
    display: inline-block;
}
.navbar-toggle {
    display: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 20px;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}
.navbar-toggle:hover {
    color: var(--accent);
}
.mobile-menu {
    display: none;
    background: var(--bg-section);
    border-top: 1px solid var(--border-line);
    padding: 12px 0;
}
.mobile-menu .mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.mobile-menu .mobile-nav-link {
    font-size: 15px;
    color: var(--text-secondary);
    padding: 10px 0;
    border-bottom: 1px solid var(--border-line);
    transition: all .25s ease;
}
.mobile-menu .mobile-nav-link:last-child {
    border-bottom: none;
}
.mobile-menu .mobile-nav-link.active {
    color: var(--accent);
}
.mobile-menu .mobile-hotwords {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}
/* ===== Hero ===== */
.hero {
    position: relative;
    padding: 90px 0 80px;
    background: linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size: 48px 48px;
}
.hero::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -80px;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(200,164,93,0.08), transparent 70%);
    border-radius: 50%;
    animation: heroGlow 6s ease-in-out infinite;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -40px;
    left: -60px;
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(200,164,93,0.05), transparent 70%);
    border-radius: 50%;
    animation: heroGlow 8s ease-in-out infinite reverse;
}
@keyframes heroGlow {
    0%, 100% { opacity: .6; }
    50% { opacity: 1; }
}
.hero .container {
    position: relative;
    z-index: 2;
}
.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(200,164,93,0.12);
    border: 1px solid rgba(200,164,93,0.25);
    color: var(--accent);
    font-size: 13px;
    font-weight: 500;
    padding: 6px 16px;
    border-radius: 99px;
    margin-bottom: 22px;
    animation: fadeUp .5s ease-out both;
}
.hero h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
    color: var(--text-primary);
    animation: fadeUp .5s ease-out .1s both;
}
.hero-sub {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 520px;
    line-height: 1.75;
    margin-bottom: 32px;
    animation: fadeUp .5s ease-out .2s both;
}
.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 44px;
    animation: fadeUp .5s ease-out .3s both;
}
.btn-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 28px;
    background: var(--accent);
    color: #121212;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all .25s ease;
}
.btn-gold:hover {
    background: var(--accent-hover);
    color: #121212;
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(200,164,93,0.25);
}
.btn-outline-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 28px;
    background: transparent;
    color: var(--accent);
    border: 1px solid rgba(200,164,93,0.5);
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all .25s ease;
}
.btn-outline-gold:hover {
    background: rgba(200,164,93,0.1);
    color: var(--accent-hover);
    transform: translateY(-2px);
}
.hero-stats {
    display: flex;
    gap: 36px;
    animation: fadeUp .5s ease-out .4s both;
}
.stat-item {
    display: flex;
    flex-direction: column;
}
.stat-item span {
    font-size: 30px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}
.stat-item em {
    font-style: normal;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 2px;
}
.hero-visual {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-line);
    box-shadow: var(--shadow-sm);
    animation: fadeUp .6s ease-out .2s both;
}
.hero-visual img {
    width: 100%;
    height: 380px;
    object-fit: cover;
}
.hero-visual::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(18,18,18,0.4));
    pointer-events: none;
}
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
/* ===== Section General ===== */
.section-padding {
    padding: 80px 0;
}
.section-head {
    margin-bottom: 48px;
}
.section-head h2 {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    margin-bottom: 10px;
}
.section-head p {
    font-size: 15px;
    color: var(--text-secondary);
    margin: 0;
}
.section-divider {
    border: none;
    border-top: 1px solid var(--border-line);
    margin: 0;
}
/* ===== Compare Table ===== */
.section-compare {
    background: var(--bg-section);
    padding: 80px 0;
}
.compare-table-wrap {
    background: var(--bg-card);
    border: 1px solid var(--border-line);
    border-radius: var(--radius);
    overflow: hidden;
}
.compare-table {
    width: 100%;
    border-collapse: collapse;
}
.compare-table thead th {
    background: rgba(255,255,255,0.04);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    text-align: center;
    padding: 18px 16px;
    border-bottom: 1px solid var(--border-line);
}
.compare-table thead th:first-child {
    text-align: left;
    padding-left: 24px;
}
.compare-table tbody td {
    font-size: 14px;
    text-align: center;
    padding: 16px;
    border-bottom: 1px solid var(--border-line);
    color: var(--text-secondary);
    transition: background .2s ease;
}
.compare-table tbody tr:last-child td {
    border-bottom: none;
}
.compare-table tbody tr:hover td {
    background: rgba(255,255,255,0.02);
}
.compare-table tbody td:first-child {
    text-align: left;
    padding-left: 24px;
    color: var(--text-primary);
    font-weight: 500;
}
.icon-yes {
    color: var(--accent);
    font-weight: 700;
    font-size: 16px;
}
.icon-no {
    color: var(--danger);
    font-weight: 400;
    font-size: 16px;
}
.compare-table .tier-name {
    font-weight: 600;
    color: var(--text-primary);
}
.table-note {
    font-size: 12px;
    color: var(--text-muted);
    padding: 14px 24px;
    margin: 0;
    border-top: 1px solid var(--border-line);
    background: rgba(0,0,0,0.15);
}
.tier-cards-mobile {
    display: none;
}
/* ===== Level Cards ===== */
.section-levels {
    background: var(--bg-page);
    padding: 80px 0;
}
.level-card {
    background: var(--bg-card);
    border: 1px solid var(--border-line);
    border-radius: var(--radius);
    padding: 28px;
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: all .25s ease;
}
.level-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, rgba(200,164,93,0.2), transparent);
    opacity: 0;
    transition: opacity .25s ease;
}
.level-card:hover {
    border-color: rgba(200,164,93,0.3);
    transform: translateY(-3px);
}
.level-card:hover::before {
    opacity: 1;
}
.level-card .level-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
    background: rgba(200,164,93,0.1);
    border: 1px solid rgba(200,164,93,0.2);
    margin-bottom: 20px;
}
.level-card .level-icon.lv1 {
    color: #fff;
    background: rgba(255,255,255,0.08);
    border-color: var(--border-line);
}
.level-card .level-icon.lv2 {
    color: #C0C0C7;
    background: rgba(192,192,199,0.1);
    border-color: rgba(192,192,199,0.2);
}
.level-card .level-icon.lv3 {
    color: var(--accent);
    background: rgba(200,164,93,0.1);
    border-color: rgba(200,164,93,0.25);
}
.level-card .level-icon.lv4 {
    color: #fff;
    background: linear-gradient(135deg, rgba(200,164,93,0.3), rgba(200,164,93,0.05));
    border-color: rgba(200,164,93,0.35);
}
.level-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.level-card .level-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}
.level-points {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
}
.level-points li {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 5px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.level-points li::before {
    content: '';
    width: 4px;
    height: 8px;
    background: var(--accent);
    flex-shrink: 0;
    border-radius: 1px;
}
.level-link {
    font-size: 14px;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap .25s ease;
}
.level-link:hover {
    color: var(--accent-hover);
    gap: 10px;
}
/* ===== Premium Preview ===== */
.section-premium {
    background: var(--bg-section);
    padding: 80px 0;
}
.premium-card {
    background: var(--bg-card);
    border: 1px solid var(--border-line);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 24px;
    transition: border-color .25s ease, transform .25s ease;
}
.premium-card:hover {
    border-color: rgba(200,164,93,0.3);
    transform: translateY(-2px);
}
.premium-card .premium-thumb {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #2a2a2a, #181818);
}
.premium-card .premium-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}
.premium-card:hover .premium-thumb img {
    transform: scale(1.02);
}
.premium-card .premium-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
    background: rgba(18,18,18,0.8);
    border: 1px solid rgba(200,164,93,0.4);
    color: var(--accent);
    font-size: 12px;
    font-weight: 500;
    padding: 4px 14px;
    border-radius: 99px;
    backdrop-filter: blur(6px);
}
.premium-card .premium-body {
    padding: 20px;
}
.premium-card .premium-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color .25s ease;
}
.premium-card:hover .premium-body h3 {
    color: var(--accent);
}
.premium-card .premium-body p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.premium-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-line);
    padding-top: 12px;
}
.premium-sidebar {
    background: var(--bg-card);
    border: 1px solid var(--border-line);
    border-radius: var(--radius);
    padding: 28px;
    height: 100%;
}
.premium-sidebar h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.premium-sidebar p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}
.sidebar-link {
    font-size: 14px;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap .25s ease;
}
.sidebar-link:hover {
    color: var(--accent-hover);
    gap: 10px;
}
/* ===== FAQ ===== */
.section-faq {
    background: var(--bg-page);
    padding: 80px 0;
}
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    border-top: 1px solid var(--border-line);
    border-bottom: 1px solid var(--border-line);
}
.faq-item {
    border-bottom: 1px solid var(--border-line);
}
.faq-item:last-child {
    border-bottom: none;
}
.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    cursor: pointer;
    background: transparent;
    color: var(--text-primary);
    font-size: 17px;
    font-weight: 600;
    text-align: left;
    width: 100%;
    transition: color .25s ease;
    border: none;
}
.faq-question:hover {
    color: var(--accent);
}
.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--border-line);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--text-secondary);
    flex-shrink: 0;
    transition: all .3s ease;
}
.faq-item.open .faq-icon {
    transform: rotate(45deg);
    border-color: var(--accent);
    color: var(--accent);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
}
.faq-answer-inner {
    padding: 0 0 20px;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}
.faq-more {
    text-align: center;
    margin-top: 24px;
}
.faq-more a {
    font-size: 14px;
    color: var(--accent);
    border-bottom: 1px solid rgba(200,164,93,0.3);
    padding-bottom: 2px;
    transition: all .25s ease;
}
.faq-more a:hover {
    color: var(--accent-hover);
    border-bottom-color: var(--accent);
}
/* ===== CTA ===== */
.section-cta {
    background: var(--bg-contrast);
    padding: 80px 0;
}
.cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}
.cta-content h2 {
    font-size: 32px;
    font-weight: 700;
    color: #1A1A1A;
    margin-bottom: 8px;
    line-height: 1.3;
}
.cta-content p {
    font-size: 15px;
    color: #555;
    margin: 0;
}
.btn-dark-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 36px;
    background: #1A1A1A;
    color: var(--accent);
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all .25s ease;
    white-space: nowrap;
}
.btn-dark-gold:hover {
    background: #2A2A2A;
    color: var(--accent-hover);
    transform: scale(1.01);
}
/* ===== News ===== */
.section-news {
    background: var(--bg-section);
    padding: 80px 0;
}
.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border-line);
    border-radius: var(--radius);
    padding: 24px;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: all .25s ease;
}
.news-card:hover {
    border-color: rgba(200,164,93,0.3);
    transform: translateY(-3px);
}
.news-card a {
    display: flex;
    flex-direction: column;
    height: 100%;
    color: inherit;
}
.news-card a:hover {
    color: inherit;
}
.news-card h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color .25s ease;
}
.news-card:hover h3 {
    color: var(--accent);
}
.news-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-line);
    padding-top: 12px;
}
.news-cat {
    color: var(--accent);
    font-weight: 500;
}
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
    font-size: 15px;
    background: var(--bg-card);
    border: 1px dashed var(--border-line);
    border-radius: var(--radius);
}
.empty-state .empty-icon {
    font-size: 40px;
    margin-bottom: 12px;
    color: var(--text-muted);
    opacity: .5;
}
/* ===== Footer ===== */
.site-footer {
    background: var(--bg-page);
    border-top: 1px solid var(--border-line);
    padding: 60px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
}
.footer-brand .brand {
    margin-bottom: 16px;
}
.footer-brand p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 280px;
    margin-bottom: 20px;
}
.footer-social {
    display: flex;
    gap: 12px;
}
.social-btn {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 1px solid var(--border-line);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-secondary);
    transition: all .25s ease;
}
.social-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}
.footer-col h5 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}
.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul li a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: all .25s ease;
}
.footer-col ul li a:hover {
    color: var(--accent);
    padding-left: 4px;
}
.footer-contact li {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}
.footer-contact i {
    color: var(--text-muted);
    font-size: 13px;
    width: 16px;
}
.footer-bottom {
    border-top: 1px solid var(--border-line);
    padding: 20px 0;
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
}
/* ===== Responsive ===== */
@media (max-width: 1199px) {
    .hero h1 {
        font-size: 40px;
    }
    .hero-stats {
        gap: 24px;
    }
    .stat-item span {
        font-size: 26px;
    }
}
@media (max-width: 991px) {
    .header-hotwords {
        display: none;
    }
    .hero {
        padding: 60px 0;
    }
    .hero h1 {
        font-size: 36px;
    }
    .hero-visual img {
        height: 300px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .section-head h2,
    .cta-content h2 {
        font-size: 28px;
    }
}
@media (max-width: 767px) {
    .header-top-inner {
        flex-wrap: wrap;
    }
    .header-actions {
        gap: 8px;
    }
    .header-nav {
        display: none;
    }
    .navbar-toggle {
        display: flex;
    }
    .mobile-menu.show {
        display: block;
    }
    .hero {
        padding: 44px 0 56px;
    }
    .hero h1 {
        font-size: 34px;
    }
    .hero-sub {
        font-size: 15px;
    }
    .hero-stats {
        gap: 20px;
    }
    .stat-item span {
        font-size: 22px;
    }
    .section-padding,
    .section-compare,
    .section-levels,
    .section-premium,
    .section-faq,
    .section-cta,
    .section-news {
        padding: 56px 0;
    }
    .compare-table-wrap {
        overflow-x: auto;
    }
    .compare-table {
        min-width: 600px;
    }
    .tier-cards-mobile {
        display: none !important;
    }
    .cta-inner {
        flex-direction: column;
        text-align: center;
        justify-content: center;
    }
    .cta-content p {
        margin-bottom: 20px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        padding-bottom: 32px;
    }
    .search-input {
        width: 160px;
    }
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .btn-gold,
    .btn-outline-gold {
        width: 100%;
    }
    .section-head {
        margin-bottom: 32px;
    }
}
@media (max-width: 520px) {
    .brand-text {
        font-size: 17px;
    }
    .brand-text small {
        font-size: 11px;
    }
    .brand-mark {
        width: 34px;
        height: 34px;
        font-size: 17px;
    }
    .header-actions .btn-member {
        padding: 5px 12px;
        font-size: 11px;
    }
    .search-input {
        width: 130px;
    }
    .hero-visual img {
        height: 220px;
    }
}

/* roulang page: category1 */
:root {
            --bg-page: #121212;
            --bg-section: #181818;
            --bg-card: rgba(255, 255, 255, 0.03);
            --bg-contrast: #F5F2EC;
            --text-primary: #EDEAE4;
            --text-secondary: #A09C94;
            --text-muted: #6E6A64;
            --accent: #C8A45D;
            --accent-hover: #DDBB7A;
            --border-line: rgba(255, 255, 255, 0.08);
            --border-contrast: rgba(0, 0, 0, 0.08);
            --success: #4CAF7D;
            --danger: #B34A3A;
            --radius: 12px;
            --radius-sm: 6px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
            --font-base: -apple-system, "PingFang SC", "Noto Sans SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-base);
            background: var(--bg-page);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 吸顶导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-line);
            transition: background .2s ease, box-shadow .2s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            flex-direction: column;
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-mark {
            width: 40px;
            height: 40px;
            border: 1px solid var(--accent);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
            transform: rotate(45deg);
            position: relative;
        }
        .brand-mark::after {
            content: "9";
            transform: rotate(-45deg);
            display: block;
            font-size: 18px;
        }
        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            line-height: 1.2;
        }
        .brand-text small {
            display: block;
            font-size: 12px;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 0.04em;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        .search-toggle {
            width: 36px;
            height: 36px;
            border: 1px solid var(--border-line);
            border-radius: 8px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all .25s ease;
        }
        .search-toggle:hover {
            color: var(--accent);
            border-color: var(--accent);
        }
        .hot-keywords {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .hot-keywords a,
        .hot-keywords span {
            font-size: 12px;
            color: var(--text-secondary);
            padding: 4px 10px;
            border: 1px solid var(--border-line);
            border-radius: 999px;
            transition: all .25s ease;
            background: transparent;
            line-height: 1.4;
        }
        .hot-keywords a:hover {
            color: var(--accent);
            border-color: var(--accent);
        }
        .btn-vip {
            font-size: 12px;
            font-weight: 500;
            color: var(--accent);
            border: 1px solid var(--accent);
            border-radius: var(--radius-sm);
            padding: 6px 14px;
            line-height: 1.4;
            transition: all .25s ease;
            background: transparent;
        }
        .btn-vip:hover {
            background: rgba(200, 164, 93, 0.1);
            color: var(--accent-hover);
        }
        .nav-toggle {
            display: none;
            width: 36px;
            height: 36px;
            border: 1px solid var(--border-line);
            border-radius: 8px;
            color: var(--text-primary);
            align-items: center;
            justify-content: center;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            border-top: 1px solid var(--border-line);
            padding: 0 0;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .main-nav::-webkit-scrollbar {
            display: none;
        }
        .main-nav .nav-link-custom {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 13px 16px;
            border-bottom: 2px solid transparent;
            white-space: nowrap;
            transition: color .25s ease, border-color .25s ease;
        }
        .main-nav .nav-link-custom:hover {
            color: var(--text-primary);
        }
        .main-nav .nav-link-custom.active {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .nav-trends {
            display: flex;
            gap: 8px;
            margin-left: auto;
            padding: 0 4px;
            white-space: nowrap;
        }
        .nav-trends span {
            font-size: 12px;
            color: var(--text-muted);
            border: 1px solid var(--border-line);
            border-radius: 999px;
            padding: 2px 10px;
            line-height: 1.6;
        }

        .search-bar {
            display: none;
            padding: 12px 0;
            border-top: 1px solid var(--border-line);
        }
        .search-bar.open {
            display: block;
        }
        .search-bar .search-input {
            width: 100%;
            background: var(--bg-section);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            padding: 10px 14px;
            font-size: 14px;
            outline: none;
            transition: border-color .25s ease;
        }
        .search-bar .search-input:focus {
            border-color: var(--accent);
        }

        /* ===== Hero ===== */
        .hero-section {
            background: linear-gradient(rgba(18, 18, 18, 0.85), rgba(18, 18, 18, 0.92)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 96px 0 88px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-line);
        }
        .hero-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background:
                linear-gradient(rgba(237, 234, 228, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(237, 234, 228, 0.03) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
        }
        .hero-section::after {
            content: "";
            position: absolute;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(200, 164, 93, 0.07) 0%, transparent 70%);
            top: -120px;
            right: -80px;
            pointer-events: none;
            animation: heroGlow 6s ease-in-out infinite;
        }
        @keyframes heroGlow {
            0%,
            100% {
                opacity: 0.6;
                transform: scale(1);
            }
            50% {
                opacity: 1;
                transform: scale(1.05);
            }
        }
        .hero-section .row {
            position: relative;
            z-index: 2;
            align-items: center;
        }
        .hero-copy {
            animation: fadeUp .5s ease-out both;
        }
        .hero-copy .breadcrumb-custom {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            display: flex;
            gap: 6px;
            align-items: center;
        }
        .hero-copy .breadcrumb-custom a:hover {
            color: var(--accent);
        }
        .hero-copy .breadcrumb-custom .sep {
            color: var(--text-muted);
            margin: 0 2px;
        }
        .hero-copy h1 {
            font-size: 48px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin: 0 0 16px;
            color: var(--text-primary);
        }
        .hero-copy .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 520px;
            line-height: 1.75;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            animation: fadeUp .5s ease-out .1s both;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #121212;
            border-radius: var(--radius-sm);
            padding: 12px 26px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            transition: all .25s ease;
            height: 46px;
        }
        .btn-primary-custom:hover {
            background: var(--accent-hover);
            color: #121212;
            transform: translateY(-1px);
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--accent);
            border: 1px solid var(--accent);
            border-radius: var(--radius-sm);
            padding: 12px 26px;
            font-size: 15px;
            font-weight: 500;
            height: 46px;
            transition: all .25s ease;
        }
        .btn-outline-custom:hover {
            background: rgba(200, 164, 93, 0.1);
            color: var(--accent-hover);
        }
        .hero-visual {
            animation: fadeUp .6s ease-out .2s both;
            position: relative;
        }
        .hero-visual .cover-frame {
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-line);
            box-shadow: 0 12px 48px rgba(0, 0, 0, 0.4);
        }
        .hero-visual .cover-frame img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .hero-visual .cover-frame:hover img {
            transform: scale(1.02);
        }
        .hero-visual-badge {
            position: absolute;
            bottom: -16px;
            left: 24px;
            background: var(--accent);
            color: #121212;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            box-shadow: var(--shadow-sm);
        }

        /* ===== 图文卡片 ===== */
        .featured-section {
            background: var(--bg-section);
            padding: 80px 0;
            border-bottom: 1px solid var(--border-line);
        }
        .section-head {
            margin-bottom: 44px;
            max-width: 720px;
        }
        .section-head .section-tag {
            font-size: 13px;
            color: var(--accent);
            letter-spacing: 0.08em;
            font-weight: 500;
            margin-bottom: 12px;
            display: block;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 12px;
            color: var(--text-primary);
        }
        .section-head p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-line);
            border-radius: var(--radius);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all .25s ease;
        }
        .feature-card:hover {
            border-color: rgba(200, 164, 93, 0.3);
            transform: translateY(-3px);
        }
        .feature-card .card-media {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .feature-card .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .feature-card:hover .card-media img {
            transform: scale(1.03);
        }
        .feature-card .card-media .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(18, 18, 18, 0.75);
            color: var(--accent);
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 999px;
            border: 1px solid rgba(200, 164, 93, 0.3);
            backdrop-filter: blur(4px);
            font-weight: 500;
            letter-spacing: 0.04em;
        }
        .feature-card .card-body {
            padding: 22px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .feature-card .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.4;
            transition: color .25s ease;
        }
        .feature-card:hover .card-body h3 {
            color: var(--accent);
        }
        .feature-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }

        /* ===== 主体内容 ===== */
        .main-content-section {
            background: var(--bg-page);
            padding: 80px 0;
            border-bottom: 1px solid var(--border-line);
        }
        .content-left {
            padding-right: 40px;
        }
        .content-left h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 18px;
            color: var(--text-primary);
        }
        .content-left .lead-text {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .content-left .body-text {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 20px;
        }
        .content-left .content-image {
            border-radius: var(--radius);
            overflow: hidden;
            margin: 28px 0;
            border: 1px solid var(--border-line);
        }
        .content-left .content-image img {
            width: 100%;
            height: auto;
            transition: transform .4s ease;
        }
        .content-left .content-image:hover img {
            transform: scale(1.02);
        }
        .feature-points {
            list-style: none;
            margin: 24px 0 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .feature-points li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            font-size: 15px;
            color: var(--text-primary);
            line-height: 1.6;
        }
        .feature-points li::before {
            content: "";
            flex-shrink: 0;
            width: 8px;
            height: 8px;
            margin-top: 8px;
            background: var(--accent);
            display: block;
            border-radius: 2px;
        }
        .sidebar-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-line);
            border-radius: var(--radius);
            padding: 28px;
            position: sticky;
            top: 180px;
        }
        .sidebar-panel h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 6px;
        }
        .sidebar-panel .sidebar-sub {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            border-bottom: 1px solid var(--border-line);
            padding-bottom: 14px;
        }
        .sidebar-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-list li {
            border-bottom: 1px solid var(--border-line);
        }
        .sidebar-list li:last-child {
            border-bottom: none;
        }
        .sidebar-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 13px 0;
            font-size: 14px;
            color: var(--text-secondary);
            transition: all .25s ease;
        }
        .sidebar-list a i {
            font-size: 12px;
            opacity: 0;
            transform: translateX(-4px);
            transition: all .25s ease;
            color: var(--accent);
        }
        .sidebar-list a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .sidebar-list a:hover i {
            opacity: 1;
            transform: translateX(0);
        }

        /* ===== 数据亮点 ===== */
        .stats-section {
            background: var(--bg-contrast);
            padding: 72px 0;
            border-bottom: 1px solid var(--border-contrast);
        }
        .stats-section .section-head h2 {
            color: #1A1A1A;
        }
        .stats-section .section-head p {
            color: #555;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 20px 12px;
        }
        .stat-item .stat-number {
            font-size: 46px;
            font-weight: 700;
            color: #1A1A1A;
            line-height: 1.1;
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }
        .stat-item .stat-number em {
            font-style: normal;
            color: var(--accent);
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: #555;
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-contrast);
            padding: 80px 0;
        }
        .faq-section .section-head {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }
        .faq-section .section-head h2 {
            color: #1A1A1A;
        }
        .faq-section .section-head p {
            color: #555;
        }
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
            border-top: 1px solid var(--border-contrast);
            border-bottom: 1px solid var(--border-contrast);
        }
        .faq-item {
            border-bottom: 1px solid var(--border-contrast);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            padding: 22px 8px;
            cursor: pointer;
            transition: color .25s ease;
        }
        .faq-question h3 {
            font-size: 18px;
            font-weight: 600;
            color: #1A1A1A;
            margin: 0;
            line-height: 1.5;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border: 1px solid var(--border-contrast);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #1A1A1A;
            transition: all .3s ease;
            font-size: 14px;
        }
        .faq-question .faq-icon i {
            transition: transform .3s ease;
        }
        .faq-question[aria-expanded="true"] .faq-icon i {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 8px 22px;
            color: #555;
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-more {
            text-align: center;
            margin-top: 32px;
        }
        .faq-more a {
            font-size: 14px;
            color: var(--accent);
            border-bottom: 1px solid transparent;
            transition: all .25s ease;
        }
        .faq-more a:hover {
            border-bottom-color: var(--accent);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: #1A1A1A;
            padding: 72px 0;
            border-top: 1px solid var(--border-contrast);
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: "";
            position: absolute;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(200, 164, 93, 0.08) 0%, transparent 70%);
            bottom: -120px;
            left: -60px;
        }
        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            position: relative;
            z-index: 2;
            flex-wrap: wrap;
        }
        .cta-copy h2 {
            font-size: 32px;
            font-weight: 700;
            color: #F5F2EC;
            margin: 0 0 10px;
            line-height: 1.3;
        }
        .cta-copy p {
            font-size: 15px;
            color: rgba(245, 242, 236, 0.75);
            margin: 0;
            max-width: 520px;
            line-height: 1.7;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-dark-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #F5F2EC;
            color: #1A1A1A;
            border-radius: var(--radius-sm);
            padding: 14px 30px;
            font-size: 15px;
            font-weight: 600;
            transition: all .25s ease;
            height: 48px;
        }
        .btn-dark-gold:hover {
            background: #fff;
            transform: translateY(-1px);
            color: #1A1A1A;
        }
        .btn-dark-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #F5F2EC;
            border: 1px solid rgba(245, 242, 236, 0.5);
            border-radius: var(--radius-sm);
            padding: 14px 30px;
            font-size: 15px;
            font-weight: 500;
            transition: all .25s ease;
            height: 48px;
        }
        .btn-dark-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0d0d0d;
            border-top: 1px solid var(--border-line);
            padding-top: 64px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-brand .brand {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 300px;
            margin: 0 0 20px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .social-btn {
            width: 36px;
            height: 36px;
            border: 1px solid var(--border-line);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 14px;
            transition: all .25s ease;
        }
        .social-btn:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 16px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color .25s ease;
        }
        .footer-col ul a:hover {
            color: var(--accent);
        }
        .footer-contact li {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 10px;
            line-height: 1.5;
        }
        .footer-contact li i {
            color: var(--text-muted);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-line);
            padding: 18px 0;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 12px;
            color: var(--text-muted);
            margin: 0;
        }

        /* ===== 动画 ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199px) {
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 991px) {
            .hero-section {
                padding: 72px 0 64px;
            }
            .hero-copy h1 {
                font-size: 38px;
            }
            .header-top {
                padding: 12px 0;
            }
            .hot-keywords {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 767px) {
            .hero-copy h1 {
                font-size: 34px;
            }
            .hero-section {
                padding: 56px 0 48px;
            }
            .hero-visual {
                margin-top: 32px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .content-left {
                padding-right: 0;
            }
            .sidebar-panel {
                position: static;
                margin-top: 32px;
            }
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .header-top {
                gap: 8px;
            }
            .brand-text {
                font-size: 18px;
            }
            .brand-text small {
                font-size: 11px;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                overflow-x: visible;
                padding: 8px 0;
                border-top: 1px solid var(--border-line);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav .nav-link-custom {
                padding: 12px 8px;
                border-bottom: 1px solid var(--border-line);
                text-align: left;
                border-left: 3px solid transparent;
            }
            .main-nav .nav-link-custom.active {
                border-left-color: var(--accent);
                border-bottom-color: var(--border-line);
                color: var(--accent);
            }
            .nav-trends {
                margin-left: 0;
                padding: 12px 0 4px;
                flex-wrap: wrap;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .stat-item .stat-number {
                font-size: 38px;
            }
        }
        @media (max-width: 520px) {
            .header-actions .btn-vip {
                display: none;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-item {
                padding: 12px 6px;
            }
            .cta-actions .btn-dark-gold,
            .cta-actions .btn-dark-outline {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: article */
:root {
  --bg-page: #121212;
  --bg-section: #181818;
  --bg-card: rgba(255,255,255,0.03);
  --bg-contrast: #F5F2EC;
  --text-primary: #EDEAE4;
  --text-secondary: #A09C94;
  --text-muted: #6E6A64;
  --accent: #C8A45D;
  --accent-hover: #DDBB7A;
  --border-line: rgba(255,255,255,0.08);
  --border-contrast: rgba(0,0,0,0.08);
  --radius: 12px;
  --transition: all .25s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Noto Sans SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg-page);
  color:var(--text-primary);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:var(--transition)}
img{max-width:100%;display:block}
button{font-family:inherit;border:none;background:none;cursor:pointer;outline:none}
ul,ol{margin:0;padding:0}
.container{max-width:1280px;padding-left:24px;padding-right:24px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}

/* ========= 导航 ========= */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(18,18,18,0.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border-line);
}
.header-top-inner{
  display:flex;align-items:center;justify-content:space-between;
  min-height:62px;gap:16px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  position:relative;display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border:1px solid var(--accent);
  color:var(--accent);font-size:18px;font-weight:700;
  border-radius:9px;transform:rotate(45deg);flex-shrink:0;
  transition:var(--transition);
}
.brand-mark::before{content:"9";transform:rotate(-45deg)}
.brand:hover .brand-mark{background:rgba(200,164,93,0.1);border-color:var(--accent-hover)}
.brand-text{font-size:20px;font-weight:700;color:var(--text-primary);letter-spacing:-0.02em;line-height:1.15}
.brand-text small{display:block;font-size:11px;font-weight:400;color:var(--text-secondary);letter-spacing:0.08em;line-height:1.3}
.header-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}
.header-search{display:flex;align-items:center;position:relative}
.search-toggle{color:var(--text-secondary);font-size:16px;padding:8px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;transition:var(--transition)}
.search-toggle:hover{color:var(--accent)}
.search-input{
  width:0;opacity:0;padding:0;border:1px solid transparent;background:transparent;
  border-radius:8px;color:var(--text-primary);font-size:14px;
  transition:width .3s ease,opacity .3s ease,padding .3s ease;
  outline:none;
}
.search-input.open{
  width:180px;opacity:1;padding:8px 12px;margin-left:8px;
  background:rgba(255,255,255,0.06);border-color:var(--border-line);
}
.search-input::placeholder{color:var(--text-muted)}
.search-input:focus{border-color:var(--accent)}
.header-hotwords{display:flex;gap:14px}
.header-hotwords a{font-size:12px;color:var(--text-muted);white-space:nowrap}
.header-hotwords a:hover{color:var(--accent)}
.btn-member{
  font-size:12px;font-weight:600;color:var(--accent);
  border:1px solid var(--accent);border-radius:6px;
  padding:6px 14px;background:transparent;white-space:nowrap;
  transition:var(--transition);
}
.btn-member:hover{background:rgba(200,164,93,0.12);color:var(--accent-hover);border-color:var(--accent-hover)}
.nav-toggle{display:none;color:var(--text-secondary);font-size:20px;padding:6px 8px;border-radius:8px;transition:var(--transition)}
.nav-toggle:hover{color:var(--accent)}
.header-nav-wrap{border-top:1px solid var(--border-line)}
.main-nav{display:flex;align-items:center;gap:28px;min-height:50px}
.nav-link-custom{
  font-size:14px;font-weight:500;color:var(--text-secondary);
  padding:16px 2px;border-bottom:2px solid transparent;line-height:1;
  white-space:nowrap;
}
.nav-link-custom:hover{color:var(--text-primary)}
.nav-link-custom.active{color:var(--accent);border-bottom-color:var(--accent)}
.nav-trends{margin-left:auto;display:flex;gap:16px}
.nav-trends span{font-size:12px;color:var(--text-muted);white-space:nowrap}

/* ========= 文章页 ========= */
.article-main{
  position:relative;padding:64px 0 96px;
  background-image:
    linear-gradient(rgba(237,234,228,0.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(237,234,228,0.04) 1px,transparent 1px);
  background-size:48px 48px;
}
.article-main::before{
  content:"";position:absolute;top:-60px;right:-60px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(200,164,93,0.07),transparent 70%);
  pointer-events:none;
}
.article-main::after{
  content:"";position:absolute;bottom:0;left:-80px;width:360px;height:360px;
  background:radial-gradient(circle,rgba(200,164,93,0.04),transparent 70%);
  pointer-events:none;
}
.article-wrapper{max-width:860px;margin:0 auto;position:relative;z-index:1}
.article-breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-muted);margin-bottom:20px;
}
.article-breadcrumb a{color:var(--text-muted)}
.article-breadcrumb a:hover{color:var(--accent)}
.article-breadcrumb .sep{opacity:0.6;margin:0 2px}
.article-breadcrumb .current{color:var(--text-secondary);max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  font-size:36px;font-weight:700;line-height:1.3;letter-spacing:-0.02em;
  color:var(--text-primary);margin:0 0 8px;word-break:break-word;
}
.article-card{
  background:var(--bg-contrast);border-radius:16px;
  border-top:3px solid var(--accent);
  padding:48px;margin-top:30px;color:#262626;
  box-shadow:0 16px 48px rgba(0,0,0,0.35);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  padding-bottom:24px;margin-bottom:32px;
  border-bottom:1px solid var(--border-contrast);
  font-size:13px;color:#888;
}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item i{color:var(--accent);font-size:13px}
.meta-divider{width:4px;height:4px;background:var(--accent);border-radius:50%;flex-shrink:0}
.article-content{font-size:16px;line-height:1.85;color:#2B2B2B;word-break:break-word}
.article-content p{margin:0 0 1.4em}
.article-content h2{
  font-size:24px;font-weight:700;color:#1A1A1A;
  margin:2em 0 1em;padding-bottom:8px;
  border-bottom:1px solid var(--border-contrast);
  letter-spacing:-0.01em;
}
.article-content h3{font-size:19px;font-weight:600;color:#1A1A1A;margin:1.6em 0 .8em}
.article-content ul,.article-content ol{margin:0 0 1.4em;padding-left:1.4em}
.article-content li{margin-bottom:.5em}
.article-content img{border-radius:12px;margin:1.2em 0;box-shadow:0 6px 24px rgba(0,0,0,0.1)}
.article-content figure{margin:1.6em 0}
.article-content figcaption{font-size:13px;color:#888;text-align:center;margin-top:8px}
.article-content a{color:#A9833F;text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:#8A6A2F}
.article-content blockquote{
  border-left:3px solid var(--accent);
  background:rgba(200,164,93,0.08);
  padding:1em 1.2em;margin:1.5em 0;
  border-radius:0 8px 8px 0;color:#444;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content pre{
  background:#1A1A1A;color:#EDEAE4;padding:18px;border-radius:10px;
  overflow-x:auto;margin:1.5em 0;font-size:14px;line-height:1.6;
}
.article-content code{background:rgba(0,0,0,0.06);padding:2px 6px;border-radius:4px;font-size:0.92em}
.article-content pre code{background:transparent;padding:0;color:inherit}
.article-content table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:14px}
.article-content th{background:#EDEAE4;padding:10px 12px;text-align:left;font-weight:600;border-bottom:1px solid #ddd}
.article-content td{padding:10px 12px;border-bottom:1px solid #e8e5df}
.article-content tr:last-child td{border-bottom:none}
.article-content hr{border:none;border-top:1px solid var(--border-contrast);margin:2em 0}
.article-tags{
  display:flex;flex-wrap:wrap;gap:8px;
  margin-top:40px;padding-top:24px;
  border-top:1px solid var(--border-contrast);
}
.tag-pill{
  font-size:12px;font-weight:500;color:#A9833F;
  background:rgba(200,164,93,0.1);
  border:1px solid rgba(200,164,93,0.3);
  padding:5px 14px;border-radius:999px;
  transition:var(--transition);
}
.tag-pill:hover{background:rgba(200,164,93,0.18);color:#8A6A2F}
.article-foot{
  display:flex;justify-content:space-between;gap:16px;margin-top:48px;
}
.post-nav-link{
  display:inline-flex;align-items:center;gap:10px;
  border:1px solid var(--border-line);border-radius:10px;
  padding:12px 22px;color:var(--text-secondary);font-size:14px;
  background:rgba(255,255,255,0.02);
  transition:var(--transition);
  max-width:48%;
}
.post-nav-link:hover{border-color:var(--accent);color:var(--accent);background:rgba(200,164,93,0.04)}
.post-nav-link i{font-size:13px;transition:transform .25s ease}
.post-nav-prev:hover i{transform:translateX(-3px)}
.post-nav-next:hover i{transform:translateX(3px)}
.post-nav-link span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ========= 相关推荐 ========= */
.related-section{margin-top:80px;position:relative;z-index:1}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:28px;gap:16px}
.related-title{font-size:28px;font-weight:700;margin:0;color:var(--text-primary);letter-spacing:-0.01em}
.related-link-more{font-size:14px;color:var(--accent);white-space:nowrap}
.related-link-more i{transition:transform .25s ease}
.related-link-more:hover{color:var(--accent-hover)}
.related-link-more:hover i{transform:translateX(4px)}
.related-card{
  display:block;height:100%;
  background:var(--bg-card);border:1px solid var(--border-line);
  border-radius:12px;overflow:hidden;
  transition:var(--transition);
}
.related-card:hover{border-color:rgba(200,164,93,0.35);transform:translateY(-4px)}
.related-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#1E1E1E}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.related-card:hover .related-thumb img{transform:scale(1.03)}
.related-badge{
  position:absolute;left:12px;top:12px;
  font-size:12px;font-weight:500;color:var(--accent);
  background:rgba(18,18,18,0.75);border:1px solid rgba(200,164,93,0.4);
  padding:4px 12px;border-radius:999px;
  backdrop-filter:blur(4px);
}
.related-body{padding:18px 18px 22px}
.related-body h3{font-size:18px;font-weight:600;color:var(--text-primary);margin:0 0 8px;line-height:1.4;transition:var(--transition)}
.related-card:hover .related-body h3{color:var(--accent)}
.related-body p{
  font-size:14px;color:var(--text-secondary);margin:0;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}

/* ========= 空态 ========= */
.article-empty{
  max-width:640px;margin:40px auto 0;text-align:center;
  background:var(--bg-card);border:1px solid var(--border-line);
  border-radius:16px;padding:64px 32px;
}
.article-empty .empty-icon{
  width:72px;height:72px;margin:0 auto 24px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(200,164,93,0.1);border:1px solid rgba(200,164,93,0.3);
  color:var(--accent);font-size:28px;
}
.article-empty h1{font-size:30px;font-weight:700;color:var(--text-primary);margin:0 0 12px}
.article-empty p{font-size:15px;color:var(--text-secondary);margin:0 0 28px}
.btn-gold{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent);color:#1A1A1A;font-weight:600;
  border-radius:8px;padding:13px 30px;font-size:15px;
  transition:var(--transition);
}
.btn-gold:hover{background:var(--accent-hover);color:#1A1A1A;transform:translateY(-2px)}

/* ========= 页脚 ========= */
.site-footer{margin-top:0;background:#0E0E0E;border-top:1px solid var(--border-line)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;padding:64px 0 48px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{margin:18px 0 0;font-size:14px;color:var(--text-muted);max-width:320px;line-height:1.7}
.footer-social{display:flex;gap:12px;margin-top:22px}
.social-btn{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--border-line);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-muted);font-size:15px;
  transition:var(--transition);
}
.social-btn:hover{border-color:var(--accent);color:var(--accent)}
.footer-col h5{font-size:14px;font-weight:600;color:var(--text-primary);margin-bottom:18px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:var(--text-secondary)}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{font-size:14px;color:var(--text-muted);display:flex;gap:8px;align-items:center}
.footer-contact i{width:16px;color:var(--accent)}
.footer-bottom{border-top:1px solid var(--border-line);padding:20px 0;text-align:center}
.footer-bottom p{font-size:13px;color:var(--text-muted);margin:0}

/* ========= 响应式 ========= */
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .article-card{padding:36px}
  .related-title{font-size:24px}
}
@media (max-width:767.98px){
  .header-top-inner{min-height:56px}
  .header-hotwords,.btn-member{display:none}
  .nav-toggle{display:inline-flex}
  .header-nav-wrap{display:none}
  .header-nav-wrap.show{
    display:block;border-top:1px solid var(--border-line);
    background:rgba(18,18,18,0.97);
    max-height:calc(100vh - 56px);overflow-y:auto;
  }
  .main-nav{flex-direction:column;align-items:flex-start;gap:0;padding:12px 0 16px}
  .nav-link-custom{
    width:100%;padding:13px 0;border-bottom:1px solid rgba(255,255,255,0.06);
    border-left:2px solid transparent;padding-left:2px;
  }
  .nav-link-custom.active{border-left-color:var(--accent)}
  .nav-trends{margin-left:0;padding-top:14px;gap:20px}
  .nav-trends span{font-size:13px}
  .article-main{padding:40px 0 72px}
  .article-title{font-size:28px}
  .article-card{padding:28px 20px;border-radius:12px}
  .article-content{font-size:15px;line-height:1.8}
  .article-content h2{font-size:21px}
  .article-content h3{font-size:18px}
  .article-foot{flex-direction:column;align-items:stretch}
  .post-nav-link{max-width:100%}
  .related-section{margin-top:56px}
  .section-head{align-items:center}
  .related-title{font-size:21px}
  .related-link-more{font-size:13px}
  .footer-grid{grid-template-columns:1fr;gap:36px;padding:48px 0 32px}
  .footer-bottom p{font-size:12px}
}
@media (max-width:520px){
  .brand-text{font-size:18px}
  .brand-text small{font-size:10px}
  .search-input.open{width:130px}
  .article-breadcrumb .current{max-width:200px}
}

/* roulang page: category2 */
:root {
    --bg-page: #121212;
    --bg-section: #181818;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-contrast: #F5F2EC;
    --text-primary: #EDEAE4;
    --text-secondary: #A09C94;
    --text-muted: #6E6A64;
    --accent: #C8A45D;
    --accent-hover: #DDBB7A;
    --border-line: rgba(255, 255, 255, 0.08);
    --border-contrast: rgba(0, 0, 0, 0.08);
    --success: #4CAF7D;
    --danger: #B34A3A;
    --radius: 12px;
    --radius-sm: 6px;
    --container-max: 1280px;
    --transition: all .25s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg-page);
    color: var(--text-primary);
    font-family: -apple-system, "PingFang SC", "Noto Sans SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; height: auto; }
.container { max-width: var(--container-max); padding-left: 24px; padding-right: 24px; }
section { position: relative; }

/* ===== 吸顶导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1040;
    background: rgba(18, 18, 18, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-line);
}
.header-top {
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.header-top-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--accent), #a07e3e);
    color: #121212;
    font-size: 19px;
    font-weight: 800;
    line-height: 1;
}
.brand-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.02em;
    white-space: nowrap;
}
.brand-text small {
    display: block;
    font-size: 10px;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 0.18em;
    margin-top: -2px;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.search-toggle {
    background: none;
    border: 1px solid var(--border-line);
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.search-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
}
.hot-keywords {
    display: flex;
    align-items: center;
    gap: 8px;
}
.hot-keywords a {
    font-size: 12px;
    color: var(--text-secondary);
    border: 1px solid var(--border-line);
    padding: 4px 12px;
    border-radius: 999px;
    white-space: nowrap;
    transition: var(--transition);
}
.hot-keywords a:hover {
    color: var(--accent);
    border-color: rgba(200, 164, 93, 0.4);
}
.btn-member {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 7px 18px;
    border-radius: 999px;
    white-space: nowrap;
    transition: var(--transition);
}
.btn-member:hover {
    background: rgba(200, 164, 93, 0.1);
    color: var(--accent-hover);
}
.header-nav {
    background: transparent;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 0;
}
.nav-link-custom {
    display: inline-block;
    padding: 10px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 6px;
    transition: var(--transition);
    position: relative;
}
.nav-link-custom:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
}
.nav-link-custom.active {
    color: var(--accent);
}
.nav-link-custom.active::after {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 2px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}
.nav-trends {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-trends span {
    font-size: 12px;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.04);
    padding: 4px 12px;
    border-radius: 999px;
    white-space: nowrap;
}
.navbar-toggler {
    display: none;
    background: none;
    border: 1px solid var(--border-line);
    color: var(--text-primary);
    width: 38px;
    height: 38px;
    border-radius: 8px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

/* ===== Hero ===== */
.hero-category {
    padding: 80px 0 64px;
    background:
        linear-gradient(rgba(237, 234, 228, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(237, 234, 228, 0.04) 1px, transparent 1px),
        radial-gradient(circle at 20% 0%, rgba(200, 164, 93, 0.08), transparent 420px),
        var(--bg-page);
    background-size: 48px 48px, 48px 48px, auto, auto;
    border-bottom: 1px solid var(--border-line);
    overflow: hidden;
}
.hero-category .hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
}
.hero-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 500;
    color: var(--accent);
    border: 1px solid rgba(200, 164, 93, 0.3);
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 20px;
    letter-spacing: 0.04em;
}
.hero-category h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin: 0 0 16px;
    animation: riseIn .5s ease-out both;
}
.hero-sub {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    max-width: 52ch;
    margin-bottom: 32px;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}
.btn-primary-custom {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #121212;
    font-weight: 600;
    font-size: 15px;
    height: 44px;
    padding: 0 26px;
    border-radius: var(--radius-sm);
    border: none;
    transition: var(--transition);
}
.btn-primary-custom:hover {
    background: var(--accent-hover);
    color: #121212;
    transform: translateY(-1px);
}
.btn-outline-custom {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--accent);
    font-weight: 600;
    font-size: 15px;
    height: 44px;
    padding: 0 26px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--accent);
    transition: var(--transition);
}
.btn-outline-custom:hover {
    background: rgba(200, 164, 93, 0.1);
    color: var(--accent-hover);
    transform: translateY(-1px);
}
.hero-media {
    position: relative;
}
.hero-media img {
    border-radius: var(--radius);
    border: 1px solid var(--border-line);
    width: 100%;
    display: block;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}
.hero-media::after {
    content: "";
    position: absolute;
    inset: 20px -20px -20px 20px;
    border: 1px solid rgba(200, 164, 93, 0.15);
    border-radius: var(--radius);
    z-index: -1;
}
@keyframes riseIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== 面包屑 ===== */
.breadcrumb-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 24px;
    font-size: 13px;
    color: var(--text-muted);
    max-width: var(--container-max);
}
.breadcrumb-wrap a {
    color: var(--text-secondary);
}
.breadcrumb-wrap a:hover {
    color: var(--accent);
}
.breadcrumb-wrap .sep {
    color: var(--text-muted);
}
.breadcrumb-wrap .current {
    color: var(--text-secondary);
}

/* ===== 文档区 ===== */
.doc-section {
    padding: 40px 0 80px;
    background: var(--bg-page);
}
.doc-content {
    max-width: 780px;
}
.doc-block {
    padding: 48px 0;
    border-bottom: 1px solid var(--border-line);
    scroll-margin-top: 140px;
}
.doc-block:first-child {
    padding-top: 24px;
}
.doc-block:last-child {
    border-bottom: none;
}
.doc-block h2 {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
    margin: 0 0 16px;
    letter-spacing: -0.01em;
}
.doc-block p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 24px;
    max-width: 65ch;
}
.doc-block-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}
.doc-block-head h2 {
    margin: 0;
}
.level-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    min-width: 36px;
    height: 24px;
    padding: 0 8px;
    border-radius: 999px;
    background: rgba(200, 164, 93, 0.12);
    color: var(--accent);
    border: 1px solid rgba(200, 164, 93, 0.25);
    letter-spacing: 0.04em;
}
.level-badge-basic { background: rgba(160, 156, 148, 0.1); color: #b5b0a8; border-color: rgba(160, 156, 148, 0.2); }
.level-badge-silver { background: rgba(203, 214, 226, 0.1); color: #c2d1e2; border-color: rgba(203, 214, 226, 0.2); }
.level-badge-gold { background: rgba(200, 164, 93, 0.12); color: var(--accent); border-color: rgba(200, 164, 93, 0.25); }
.level-badge-diamond { background: rgba(200, 164, 93, 0.2); color: var(--accent-hover); border-color: rgba(219, 190, 130, 0.35); }

.doc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 20px;
}
.doc-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}
.doc-list li i {
    color: var(--accent);
    margin-top: 4px;
    font-size: 13px;
    flex-shrink: 0;
}
.level-quote {
    border-left: 3px solid var(--accent);
    background: rgba(255, 255, 255, 0.03);
    padding: 14px 20px;
    border-radius: 0 8px 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
    margin: 20px 0;
}

/* ===== 等级总览卡片 ===== */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 24px;
}
.overview-card {
    background: var(--bg-card);
    border: 1px solid var(--border-line);
    border-radius: var(--radius);
    padding: 22px 18px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}
.overview-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent);
    opacity: 0;
    transition: var(--transition);
}
.overview-card:hover {
    border-color: rgba(200, 164, 93, 0.3);
    transform: translateY(-3px);
}
.overview-card:hover::before {
    opacity: 1;
}
.overview-card .level-name {
    display: block;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.overview-card .level-value {
    display: block;
    font-size: 22px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.01em;
}
.overview-card .level-desc {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ===== 升级规则 ===== */
.upgrade-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 24px;
}
.upgrade-item {
    background: var(--bg-card);
    border: 1px solid var(--border-line);
    border-radius: var(--radius);
    padding: 22px;
    transition: var(--transition);
}
.upgrade-item:hover {
    border-color: rgba(200, 164, 93, 0.3);
    transform: translateY(-2px);
}
.upgrade-item .step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(200, 164, 93, 0.12);
    color: var(--accent);
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 14px;
}
.upgrade-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 8px;
}
.upgrade-item p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}
.upgrade-note {
    margin-top: 24px;
    padding: 16px 20px;
    border-radius: 8px;
    background: rgba(200, 164, 93, 0.06);
    border: 1px solid rgba(200, 164, 93, 0.15);
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    gap: 10px;
    align-items: flex-start;
}
.upgrade-note i {
    color: var(--accent);
    margin-top: 4px;
}

/* ===== 会员日 ===== */
.day-banner {
    border-radius: var(--radius);
    padding: 36px 32px;
    background-size: cover;
    background-position: center;
    position: relative;
    border: 1px solid var(--border-line);
    overflow: hidden;
    margin-top: 24px;
    display: flex;
    align-items: center;
}
.day-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(18, 18, 18, 0.94), rgba(18, 18, 18, 0.65));
}
.day-banner-inner {
    position: relative;
    z-index: 1;
}
.day-badge {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    background: rgba(18, 18, 18, 0.6);
    border: 1px solid rgba(200, 164, 93, 0.35);
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 14px;
}
.day-banner h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 8px;
}
.day-banner p {
    font-size: 15px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.7;
}
.day-benefits {
    display: flex;
    gap: 8px;
    margin-top: 16px;
    flex-wrap: wrap;
}
.day-benefits span {
    font-size: 12px;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-line);
    padding: 4px 12px;
    border-radius: 999px;
}

/* ===== 右侧目录 ===== */
.doc-toc {
    position: sticky;
    top: 160px;
    max-width: 340px;
    margin-left: 32px;
}
.toc-inner {
    background: var(--bg-section);
    border: 1px solid var(--border-line);
    border-radius: var(--radius);
    padding: 24px;
}
.toc-inner h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.04em;
    margin: 0 0 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border-line);
}
.toc-list {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
}
.toc-list li {
    margin-bottom: 2px;
}
.toc-list a {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    padding: 8px 12px;
    border-radius: 6px;
    transition: var(--transition);
    border-left: 2px solid transparent;
}
.toc-list a:hover {
    color: var(--accent);
    background: rgba(200, 164, 93, 0.06);
    border-left-color: var(--accent);
}
.toc-note {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    background: rgba(255, 255, 255, 0.03);
    border: 1px dashed var(--border-line);
    border-radius: 8px;
    padding: 14px 16px;
}
.toc-note i {
    color: var(--accent);
    margin-top: 3px;
}
.toc-note p {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0;
}

/* ===== FAQ ===== */
.faq-section {
    padding: 80px 0;
    background: var(--bg-section);
    border-top: 1px solid var(--border-line);
}
.section-head {
    text-align: center;
    margin-bottom: 48px;
}
.section-head h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    margin: 0 0 12px;
}
.section-head p {
    font-size: 15px;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
}
.faq-wrap {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    border-bottom: 1px solid var(--border-line);
    padding: 0;
}
.faq-item:first-child {
    border-top: 1px solid var(--border-line);
}
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 0;
    cursor: pointer;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    transition: var(--transition);
}
.faq-question:hover {
    color: var(--accent);
}
.faq-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--border-line);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--accent);
    transition: transform .25s ease;
    background: rgba(255, 255, 255, 0.02);
}
.faq-item[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}
.faq-answer {
    padding: 0 24px 20px 0;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 65ch;
}
.faq-answer p {
    margin: 0;
}
.faq-more {
    text-align: center;
    margin-top: 36px;
}
.faq-more a {
    font-size: 14px;
    color: var(--accent);
    border-bottom: 1px solid rgba(200, 164, 93, 0.3);
    padding-bottom: 2px;
}
.faq-more a:hover {
    color: var(--accent-hover);
    border-bottom-color: var(--accent);
}

/* ===== CTA ===== */
.cta-section {
    background: var(--bg-contrast);
    padding: 80px 0;
    position: relative;
}
.cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}
.cta-text h2 {
    font-size: 32px;
    font-weight: 700;
    color: #1A1A1A;
    margin: 0 0 12px;
    letter-spacing: -0.01em;
}
.cta-text p {
    font-size: 15px;
    color: #555049;
    max-width: 480px;
    margin: 0;
    line-height: 1.7;
}
.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #1A1A1A;
    color: var(--accent);
    font-weight: 600;
    font-size: 15px;
    height: 48px;
    padding: 0 32px;
    border-radius: var(--radius-sm);
    border: none;
    transition: var(--transition);
    white-space: nowrap;
}
.cta-btn:hover {
    background: #2A2A2A;
    color: var(--accent-hover);
    transform: scale(1.01);
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--bg-page);
    border-top: 1px solid var(--border-line);
    padding-top: 64px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 48px;
}
.footer-brand .brand {
    margin-bottom: 16px;
}
.footer-brand p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 32ch;
    margin: 16px 0 20px;
}
.footer-social {
    display: flex;
    gap: 10px;
}
.social-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border-line);
    color: var(--text-secondary);
    font-size: 14px;
    transition: var(--transition);
}
.social-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
}
.footer-col h5 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 16px;
    letter-spacing: 0.04em;
}
.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition);
}
.footer-col ul a:hover {
    color: var(--accent);
}
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}
.footer-contact i {
    color: var(--accent);
    width: 16px;
    text-align: center;
}
.footer-bottom {
    border-top: 1px solid var(--border-line);
    padding: 20px 0;
}
.footer-bottom p {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    margin: 0;
    letter-spacing: 0.02em;
}

/* ===== 响应式 ===== */
@media (max-width: 1199.98px) {
    .overview-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .upgrade-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    .doc-toc {
        margin-left: 0;
    }
}
@media (max-width: 991.98px) {
    .hero-category .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-media {
        max-width: 560px;
    }
    .doc-toc {
        position: static;
        max-width: none;
        margin-top: 40px;
    }
    .toc-list {
        display: flex;
        flex-wrap: wrap;
        gap: 6px;
    }
    .toc-list li {
        margin-bottom: 0;
    }
    .toc-list a {
        border-left: none;
        border-bottom: 2px solid transparent;
        padding: 6px 12px;
        border-radius: 999px;
        background: rgba(255, 255, 255, 0.03);
        font-size: 13px;
    }
    .toc-list a:hover {
        border-left: none;
        border-bottom-color: var(--accent);
        background: rgba(200, 164, 93, 0.08);
    }
    .toc-inner h4 {
        margin-bottom: 12px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}
@media (max-width: 767.98px) {
    .header-top {
        padding: 8px 0;
    }
    .header-actions .search-toggle,
    .header-actions .hot-keywords {
        display: none;
    }
    .navbar-toggler {
        display: inline-flex;
    }
    .header-nav .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(18, 18, 18, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        align-items: stretch;
        padding: 12px 24px 20px;
        border-bottom: 1px solid var(--border-line);
    }
    .header-nav .main-nav.open {
        display: flex;
    }
    .nav-link-custom {
        padding: 12px 16px;
    }
    .nav-link-custom.active::after {
        left: 16px;
        right: auto;
        width: 24px;
    }
    .nav-trends {
        margin-left: 0;
        margin-top: 12px;
    }
    .hero-category {
        padding: 48px 0 40px;
    }
    .hero-category h1 {
        font-size: 34px;
    }
    .doc-block {
        padding: 32px 0;
    }
    .doc-block h2 {
        font-size: 24px;
    }
    .doc-list {
        grid-template-columns: 1fr;
    }
    .overview-grid {
        grid-template-columns: 1fr;
    }
    .upgrade-steps {
        grid-template-columns: 1fr;
    }
    .day-banner {
        padding: 28px 20px;
    }
    .faq-section {
        padding: 56px 0;
    }
    .section-head h2 {
        font-size: 26px;
    }
    .cta-section {
        padding: 56px 0;
    }
    .cta-inner {
        flex-direction: column;
        align-items: flex-start;
    }
    .cta-text h2 {
        font-size: 26px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .faq-question {
        font-size: 16px;
    }
}