/* roulang page: index */
:root {
    --brand-purple: #6B2FF1;
    --brand-orange: #FF6A00;
    --brand-cyan: #00C6D7;
    --dark-bg: #15101F;
    --dark-bg-2: #1F1833;
    --page-bg: #F6F7FB;
    --card-bg: #FFFFFF;
    --text-main: #17141F;
    --text-secondary: #5C5566;
    --text-muted: #9690A5;
    --border-color: #E5E0F0;
    --gradient-brand: linear-gradient(135deg, #6B2FF1 0%, #9A4DFF 50%, #FF6A00 130%);
    --gradient-dark: linear-gradient(180deg, #15101F 0%, #1F1833 100%);
    --radius-card: 18px;
    --radius-btn: 999px;
    --radius-sm: 8px;
    --shadow-card: 0 10px 30px rgba(42,24,74,0.08);
    --shadow-hover: 0 18px 40px rgba(42,24,74,0.14);
    --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Arial, sans-serif;
    --transition: all 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    background: var(--page-bg);
    color: var(--text-main);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--brand-purple); text-decoration: none; transition: var(--transition); }
a:hover { color: #4a1dbd; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header .tag {
    display: inline-block;
    background: rgba(107,47,241,0.08);
    color: var(--brand-purple);
    font-size: 13px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: var(--radius-btn);
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}
.section-header h2 {
    font-size: clamp(28px, 3vw, 36px);
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-main);
    margin-bottom: 12px;
}
.section-header p {
    color: var(--text-secondary);
    font-size: 15px;
    max-width: 680px;
    margin: 0 auto;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 15px;
    padding: 14px 32px;
    border-radius: var(--radius-btn);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1.2;
    text-align: center;
}
.btn-primary {
    background: var(--gradient-brand);
    color: #fff;
    box-shadow: 0 8px 20px rgba(107,47,241,0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(107,47,241,0.4);
    color: #fff;
}
.btn-primary:active { transform: scale(0.98); }
.btn-secondary {
    background: transparent;
    color: var(--brand-purple);
    border: 1.5px solid var(--brand-purple);
}
.btn-secondary:hover {
    background: rgba(107,47,241,0.06);
    transform: translateY(-2px);
}
.btn-secondary:active { transform: scale(0.98); }
.btn:focus-visible {
    outline: 3px solid rgba(107,47,241,0.25);
    outline-offset: 2px;
}
.badge {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(107,47,241,0.08);
    color: var(--brand-purple);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-btn);
}
.badge-orange {
    background: rgba(255,106,0,0.08);
    color: var(--brand-orange);
}
.badge-cyan {
    background: rgba(0,198,215,0.1);
    color: #0094a5;
}
/* ===== Header / Nav ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    font-size: 20px;
    color: var(--text-main);
}
.logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--gradient-brand);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    flex-shrink: 0;
}
.logo-sub {
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 2px;
    font-weight: 400;
    display: block;
    line-height: 1;
    margin-top: 2px;
}
.main-nav { display: flex; align-items: center; gap: 24px; }
.main-nav a {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    padding: 8px 2px;
    position: relative;
    transition: var(--transition);
}
.main-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-brand);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
    border-radius: 2px;
}
.main-nav a:hover { color: var(--brand-purple); }
.main-nav a:hover::after { transform: scaleX(1); }
.main-nav a.active { color: var(--brand-purple); }
.main-nav a.active::after { transform: scaleX(1); }
.nav-cta {
    background: var(--gradient-brand);
    color: #fff !important;
    padding: 10px 22px !important;
    border-radius: var(--radius-btn);
    font-weight: 600;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { box-shadow: 0 6px 18px rgba(107,47,241,0.3); transform: translateY(-1px); }
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
}
.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-main);
    margin: 5px 0;
    border-radius: 2px;
    transition: var(--transition);
}
@media (max-width: 1023px) {
    .main-nav { display: none; }
    .hamburger { display: block; }
}
/* Drawer for mobile nav */
.nav-drawer {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100vh;
    background: #fff;
    z-index: 200;
    padding: 24px;
    box-shadow: -10px 0 40px rgba(0,0,0,0.12);
    transition: right 0.3s ease;
}
.nav-drawer.open { right: 0; }
.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(21,16,31,0.5);
    z-index: 199;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}
.drawer-overlay.open { opacity: 1; visibility: visible; }
.drawer-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
}
.drawer-links { margin-top: 60px; display: flex; flex-direction: column; gap: 8px; }
.drawer-links a {
    padding: 14px 16px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    transition: var(--transition);
}
.drawer-links a:hover,
.drawer-links a.active {
    background: rgba(107,47,241,0.08);
    color: var(--brand-purple);
}
/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 88vh;
    display: flex;
    align-items: center;
    background-image: linear-gradient(120deg, rgba(21,16,31,0.88) 0%, rgba(31,24,51,0.72) 60%, rgba(107,47,241,0.45) 100%), url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    color: #fff;
    padding: 80px 0;
}
.hero-content { position: relative; z-index: 2; }
.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.25);
    color: #fff;
    padding: 6px 18px;
    border-radius: var(--radius-btn);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
    backdrop-filter: blur(6px);
}
.hero h1 {
    font-size: clamp(36px, 4.5vw, 60px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    max-width: 720px;
}
.hero h1 span {
    background: linear-gradient(120deg, #9A4DFF, var(--brand-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: 18px;
    line-height: 1.6;
    color: rgba(255,255,255,0.85);
    max-width: 520px;
    margin-bottom: 32px;
}
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-ctas .btn-primary { background: var(--gradient-brand); }
.hero-ctas .btn-secondary { border-color: rgba(255,255,255,0.7); color: #fff; }
.hero-ctas .btn-secondary:hover { background: rgba(255,255,255,0.1); }
.hero-card-anchor {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}
.hero-float-card {
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 20px;
    padding: 24px;
    width: 260px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}
.hero-float-card .fc-tag {
    font-size: 12px;
    color: rgba(255,255,255,0.75);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.hero-float-card .fc-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.4;
}
.hero-float-card .fc-stat {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin-bottom: 4px;
}
.hero-float-card .fc-num {
    font-size: 36px;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    background: linear-gradient(120deg, #9A4DFF, var(--brand-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-float-card .fc-unit {
    font-size: 14px;
    color: rgba(255,255,255,0.8);
}
.hero-float-card .fc-bar {
    height: 4px;
    background: rgba(255,255,255,0.15);
    border-radius: 4px;
    margin-top: 12px;
    overflow: hidden;
}
.hero-float-card .fc-bar-inner {
    width: 72%;
    height: 100%;
    background: var(--gradient-brand);
    border-radius: 4px;
}
.hero-scroll {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255,255,255,0.6);
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: 1px;
}
.hero-scroll svg { animation: bounceDown 2s infinite; }
@keyframes bounceDown {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
}
@media (max-width: 1023px) {
    .hero-card-anchor { display: none; }
    .hero { min-height: auto; padding: 80px 0 60px; }
}
/* ===== Stats Section ===== */
.stats-section {
    position: relative;
    margin-top: -60px;
    z-index: 5;
    padding-bottom: 40px;
}
.stats-wrap {
    background: var(--card-bg);
    border-radius: 24px;
    box-shadow: var(--shadow-card);
    padding: 36px 40px;
    border: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.stat-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px;
    border-right: 1px solid var(--border-color);
}
.stat-item:last-child { border-right: none; }
.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
    color: #fff;
}
.stat-icon.purple { background: linear-gradient(135deg, #6B2FF1, #9A4DFF); }
.stat-icon.orange { background: linear-gradient(135deg, #FF6A00, #FF9E45); }
.stat-icon.cyan { background: linear-gradient(135deg, #00C6D7, #3DE0EE); }
.stat-icon.dark { background: linear-gradient(135deg, #1F1833, #3A2D5C); }
.stat-info .stat-num {
    font-size: 32px;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
    color: var(--text-main);
}
.stat-info .stat-num small {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-left: 4px;
}
.stat-info .stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 2px;
}
.stat-trend {
    display: inline-flex;
    align-items: center;
    color: #22c55e;
    font-size: 12px;
    font-weight: 600;
    margin-left: 6px;
}
@media (min-width: 640px) and (max-width: 1023px) {
    .stats-wrap { grid-template-columns: repeat(2, 1fr); }
    .stat-item:nth-child(2) { border-right: none; }
    .stat-item:nth-child(1), .stat-item:nth-child(2) { border-bottom: 1px solid var(--border-color); padding-bottom: 20px; }
}
@media (max-width: 639px) {
    .stats-wrap { grid-template-columns: repeat(2, 1fr); padding: 24px; gap: 16px; margin-top: -40px; }
    .stat-item { flex-direction: column; text-align: center; border-right: none; padding: 8px; }
    .stat-info .stat-num { font-size: 26px; }
}
/* ===== Services Matrix ===== */
.services-section {
    background: var(--page-bg);
    padding: 88px 0;
}
.services-matrix {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 24px;
}
.service-card {
    background: var(--card-bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
    padding: 36px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(107,47,241,0.4);
}
.service-card-large {
    grid-row: span 2;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: linear-gradient(160deg, #fff 0%, #f8f6ff 100%);
}
.service-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 24px;
    transition: var(--transition);
    color: #fff;
}
.service-icon.purple { background: linear-gradient(135deg, #6B2FF1, #9A4DFF); box-shadow: 0 8px 20px rgba(107,47,241,0.3); }
.service-icon.orange { background: linear-gradient(135deg, #FF6A00, #FF9E45); box-shadow: 0 8px 20px rgba(255,106,0,0.3); }
.service-icon.cyan { background: linear-gradient(135deg, #00C6D7, #3DE0EE); box-shadow: 0 8px 20px rgba(0,198,215,0.3); }
.service-card:hover .service-icon { transform: scale(1.08) rotate(-3deg); }
.service-title { font-size: 22px; font-weight: 700; margin-bottom: 10px; }
.service-desc { color: var(--text-secondary); font-size: 15px; line-height: 1.6; margin-bottom: 20px; }
.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--brand-purple);
    font-weight: 600;
    font-size: 14px;
    margin-top: auto;
}
.service-link svg { transition: transform 0.25s ease; }
.service-link:hover svg { transform: translateX(5px); }
.service-card-small .service-desc { margin-bottom: 12px; }
.services-features {
    margin-top: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.services-features span {
    background: #f5f2fc;
    padding: 4px 12px;
    border-radius: var(--radius-btn);
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}
@media (max-width: 1023px) {
    .services-matrix { grid-template-columns: 1fr; }
    .service-card-large { grid-row: auto; }
}
@media (max-width: 639px) {
    .service-card { padding: 24px; }
    .service-title { font-size: 18px; }
}
/* ===== News Section ===== */
.news-section { background: var(--page-bg); }
.news-featured {
    background: var(--card-bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    display: flex;
    margin-bottom: 24px;
    transition: var(--transition);
}
.news-featured:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.news-featured .nf-cover {
    flex: 0 0 40%;
    min-height: 260px;
    background-size: cover;
    background-position: center;
    position: relative;
}
.news-featured .nf-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent 60%, rgba(255,255,255,0.15));
}
.news-featured .nf-body { padding: 32px; flex: 1; }
.news-featured .nf-title { font-size: 24px; font-weight: 700; line-height: 1.4; margin: 12px 0 10px; }
.news-featured .nf-excerpt { color: var(--text-secondary); font-size: 15px; margin-bottom: 16px; line-height: 1.6; }
.news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 13px;
}
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.news-card {
    background: var(--card-bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.news-card .nc-cover {
    height: 180px;
    background-size: cover;
    background-position: center;
    overflow: hidden;
    position: relative;
}
.news-card .nc-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.news-card:hover .nc-cover img { transform: scale(1.05); }
.news-card .nc-cover .badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(4px);
}
.news-card .nc-body { padding: 20px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.news-card .nc-title { font-size: 17px; font-weight: 700; line-height: 1.4; margin-bottom: 8px; }
.news-card .nc-title a { color: var(--text-main); }
.news-card .nc-title a:hover { color: var(--brand-purple); }
.news-card .nc-excerpt { color: var(--text-secondary); font-size: 14px; line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card .nc-meta { margin-top: auto; display: flex; align-items: center; justify-content: space-between; }
.news-empty {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-card);
    padding: 60px;
    text-align: center;
    color: var(--text-muted);
}
.news-empty svg { margin-bottom: 12px; opacity: 0.5; }
@media (max-width: 1023px) {
    .news-featured { flex-direction: column; }
    .news-featured .nf-cover { min-height: 200px; flex: auto; }
}
@media (max-width: 639px) {
    .news-grid { grid-template-columns: 1fr; }
    .news-featured .nf-body { padding: 24px 20px; }
    .news-featured .nf-title { font-size: 19px; }
}
/* ===== Compare Section ===== */
.compare-section { background: #fff; }
.compare-wrap {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 24px;
    align-items: center;
    max-width: 960px;
    margin: 0 auto;
}
.compare-card {
    background: var(--card-bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
    padding: 32px;
}
.compare-card.highlight {
    background: linear-gradient(145deg, #f8f5ff 0%, #fff 100%);
    border: 1.5px solid rgba(107,47,241,0.3);
    box-shadow: 0 12px 32px rgba(107,47,241,0.12);
}
.compare-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.compare-list { display: flex; flex-direction: column; gap: 14px; }
.compare-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: var(--text-secondary);
}
.compare-item strong { color: var(--text-main); font-weight: 600; }
.compare-item .icon { flex-shrink: 0; }
.compare-item .icon.yes { color: #22c55e; }
.compare-item .icon.no { color: #ef4444; }
.vs-badge {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--gradient-brand);
    color: #fff;
    font-weight: 800;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(107,47,241,0.3);
    flex-shrink: 0;
}
@media (max-width: 639px) {
    .compare-wrap { grid-template-columns: 1fr; gap: 20px; }
    .vs-badge { width: 48px; height: 48px; font-size: 14px; margin: 0 auto; }
}
/* ===== FAQ ===== */
.faq-section { background: var(--page-bg); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
    background: var(--card-bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item.active {
    border-color: rgba(107,47,241,0.3);
    box-shadow: 0 12px 28px rgba(107,47,241,0.1);
    border-left: 3px solid transparent;
    border-image: var(--gradient-brand) 1;
    border-left: 3px solid var(--brand-purple);
}
.faq-question {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 24px;
    cursor: pointer;
    min-height: 48px;
    user-select: none;
}
.faq-q-badge {
    width: 28px;
    height: 28px;
    background: rgba(107,47,241,0.1);
    color: var(--brand-purple);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 13px;
    flex-shrink: 0;
}
.faq-question span:not(.faq-q-badge) {
    font-weight: 600;
    font-size: 16px;
    color: var(--text-main);
    flex: 1;
}
.faq-toggle {
    width: 24px;
    height: 24px;
    position: relative;
    flex-shrink: 0;
}
.faq-toggle::before,
.faq-toggle::after {
    content: '';
    position: absolute;
    background: var(--text-muted);
    border-radius: 2px;
    transition: var(--transition);
}
.faq-toggle::before { width: 2px; height: 14px; top: 5px; left: 11px; }
.faq-toggle::after { width: 14px; height: 2px; top: 11px; left: 5px; }
.faq-item.active .faq-toggle::before { transform: scaleY(0); }
.faq-answer {
    padding: 0 24px 24px 66px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.75;
    display: none;
}
.faq-item.active .faq-answer { display: block; }
/* ===== CTA Form Section ===== */
.cta-section { background: var(--page-bg); }
.cta-card {
    background: var(--gradient-dark);
    border-radius: 28px;
    padding: 56px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.cta-card::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(107,47,241,0.4), transparent 70%);
    border-radius: 50%;
}
.cta-card::after {
    content: '';
    position: absolute;
    bottom: -60px;
    left: 30%;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(255,106,0,0.2), transparent 70%);
    border-radius: 50%;
}
.cta-left { position: relative; z-index: 2; }
.cta-left h2 {
    font-size: clamp(24px, 2.6vw, 34px);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
}
.cta-left p { color: rgba(255,255,255,0.75); font-size: 15px; margin-bottom: 28px; }
.cta-stats {
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
}
.cta-stat .cs-num {
    font-size: 28px;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    background: linear-gradient(120deg, #9A4DFF, var(--brand-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.cta-stat .cs-label { font-size: 13px; color: rgba(255,255,255,0.6); }
.cta-form-wrap {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 20px;
    padding: 32px;
    position: relative;
    z-index: 2;
    backdrop-filter: blur(8px);
}
.form-group { margin-bottom: 20px; }
.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    color: rgba(255,255,255,0.9);
}
.form-label .req { color: var(--brand-orange); margin-left: 2px; }
.form-input, .form-select {
    width: 100%;
    height: 48px;
    border-radius: 12px;
    border: 1px solid #D5CFE3;
    background: #FBFBFE;
    padding: 0 16px;
    font-size: 15px;
    color: var(--text-main);
    transition: var(--transition);
    outline: none;
}
.form-input:focus, .form-select:focus {
    border-color: var(--brand-purple);
    box-shadow: 0 0 0 3px rgba(107,47,241,0.2);
    background: #fff;
}
.form-input::placeholder { color: #b8b2c9; }
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%235C5566'%3E%3Cpath d='M6 8L0 0h12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    cursor: pointer;
}
.form-submit {
    width: 100%;
    padding: 14px;
    background: var(--gradient-brand);
    color: #fff;
    border: none;
    border-radius: var(--radius-btn);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
}
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 10px 25px rgba(107,47,241,0.3); }
.privacy-note {
    text-align: center;
    font-size: 12px;
    color: rgba(255,255,255,0.45);
    margin-top: 14px;
}
@media (max-width: 1023px) {
    .cta-card { grid-template-columns: 1fr; padding: 40px 32px; }
}
@media (max-width: 639px) {
    .cta-card { padding: 28px 20px; border-radius: 20px; }
    .cta-form-wrap { padding: 24px 20px; }
}
/* ===== Footer ===== */
.site-footer {
    background: var(--dark-bg);
    color: rgba(255,255,255,0.7);
    padding: 64px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 48px;
}
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 280px; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.7);
    transition: var(--transition);
}
.footer-social a:hover {
    background: var(--brand-purple);
    color: #fff;
    transform: translateY(-2px);
}
.footer-col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 10px;
}
.footer-col h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 3px;
    background: var(--gradient-brand);
    border-radius: 3px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
    color: rgba(255,255,255,0.65);
    font-size: 14px;
    transition: var(--transition);
    padding-left: 0;
}
.footer-col ul a:hover {
    color: #fff;
    padding-left: 6px;
    border-left: 3px solid var(--brand-purple);
}
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    margin-bottom: 12px;
    color: rgba(255,255,255,0.6);
}
.footer-contact svg { flex-shrink: 0; opacity: 0.7; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}
@media (max-width: 1023px) {
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 639px) {
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .site-footer { padding-bottom: 80px; }
}
/* ===== Mobile Bottom Tab ===== */
.mobile-tabbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #fff;
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -4px 20px rgba(42,24,74,0.06);
    display: none;
    z-index: 150;
    padding-bottom: env(safe-area-inset-bottom);
    height: 64px;
}
.mobile-tabbar-inner {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    height: 100%;
}
.tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: var(--text-muted);
    font-size: 11px;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}
.tab-item::before {
    content: '';
    position: absolute;
    top: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--brand-purple);
    opacity: 0;
    transition: var(--transition);
}
.tab-item.active {
    color: var(--brand-purple);
    font-weight: 600;
}
.tab-item.active::before { opacity: 1; }
.tab-item svg {
    width: 22px;
    height: 22px;
    stroke-width: 1.8;
}
.tab-item:active { transform: scale(0.95); }
@media (max-width: 639px) {
    .mobile-tabbar { display: block; }
    body { padding-bottom: 0; }
}
/* Back to top */
.back-to-top {
    position: fixed;
    bottom: 84px;
    right: 24px;
    width: 44px;
    height: 44px;
    background: var(--brand-purple);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(107,47,241,0.3);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 90;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-4px); background: var(--dark-bg); }
@media (max-width: 639px) {
    .back-to-top { bottom: 80px; right: 16px; }
}
/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}
/* Foundation overrides */
.grid-container { max-width: 1200px; }
.button { transition: var(--transition); }
.accordion-title { font-size: 16px; padding: 1.25rem; }
.accordion-title:hover { background: rgba(107,47,241,0.03); }
.accordion-content { border-top: 1px solid var(--border-color); line-height: 1.75; color: var(--text-secondary); }

/* roulang page: article */
:root {
    --primary: #6B2FF1;
    --secondary: #FF6A00;
    --accent: #00C6D7;
    --dark: #15101F;
    --dark2: #1F1833;
    --bg: #F6F7FB;
    --card: #FFFFFF;
    --text: #17141F;
    --text2: #5C5566;
    --text3: #9690A5;
    --border: #E5E0F0;
    --gradient: linear-gradient(135deg, #6B2FF1 0%, #9A4DFF 50%, #FF6A00 130%);
    --gradient-dark: linear-gradient(180deg, #15101F 0%, #1F1833 100%);
    --radius-lg: 18px;
    --radius-sm: 8px;
    --radius-pill: 999px;
    --shadow: 0 10px 30px rgba(42, 24, 74, 0.08);
    --shadow-hover: 0 18px 40px rgba(42, 24, 74, 0.14);
    --trans: 0.25s ease;
    --container-w: 1200px;
    --content-w: 760px;
    --header-h: 72px;
    --tabbar-h: 64px;
    --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-stack);
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--trans), background var(--trans), border-color var(--trans), box-shadow var(--trans); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; position: relative; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.25; color: var(--text); }
p { line-height: 1.75; }
:focus-visible { outline: 3px solid rgba(107, 47, 241, 0.25); outline-offset: 2px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }

/* ===== Header ===== */
.site-header {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    height: var(--header-h);
    transition: box-shadow var(--trans);
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(21, 16, 31, 0.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.logo { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: -0.02em; }
.logo-icon {
    width: 40px; height: 40px; border-radius: 12px;
    background: var(--gradient);
    display: flex; align-items: center; justify-content: center;
    color: #fff; flex-shrink: 0;
    box-shadow: 0 6px 16px rgba(107, 47, 241, 0.3);
}
.logo-sub { font-size: 10px; font-weight: 600; letter-spacing: 0.12em; color: var(--text3); margin-left: 6px; vertical-align: middle; }
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
    display: inline-flex; align-items: center;
    padding: 10px 18px; font-size: 15px; font-weight: 600;
    color: var(--text2); border-radius: var(--radius-pill);
    position: relative; white-space: nowrap;
}
.main-nav a:hover { color: var(--primary); background: rgba(107, 47, 241, 0.06); }
.main-nav a.active { color: var(--primary); }
.main-nav a.active::after {
    content: ""; position: absolute; left: 18px; right: 18px; bottom: 4px;
    height: 2px; border-radius: 2px; background: var(--gradient);
}
.main-nav a.nav-cta {
    background: var(--gradient); color: #fff;
    padding: 10px 24px; box-shadow: 0 6px 18px rgba(107, 47, 241, 0.3);
    margin-left: 8px;
}
.main-nav a.nav-cta:hover { box-shadow: 0 10px 24px rgba(107, 47, 241, 0.4); transform: translateY(-2px); }
.menu-toggle {
    display: none; width: 44px; height: 44px; border: none; background: transparent;
    cursor: pointer; border-radius: 10px; flex-direction: column;
    align-items: center; justify-content: center; gap: 5px;
}
.menu-toggle span { display: block; width: 22px; height: 2.5px; background: var(--text); border-radius: 3px; transition: transform var(--trans), opacity var(--trans); }
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile drawer */
.mobile-menu {
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    background: #fff; z-index: 999;
    padding: 24px 20px;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    display: flex; flex-direction: column; gap: 8px;
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu a {
    padding: 14px 16px; font-size: 17px; font-weight: 600;
    color: var(--text); border-radius: 12px;
    display: flex; align-items: center;
}
.mobile-menu a:hover { background: rgba(107, 47, 241, 0.06); color: var(--primary); }
.mobile-menu a.active { background: rgba(107, 47, 241, 0.08); color: var(--primary); }
.mobile-menu a.nav-cta { margin-top: 16px; background: var(--gradient); color: #fff; justify-content: center; box-shadow: 0 8px 20px rgba(107, 47, 241, 0.3); }

/* ===== Breadcrumb ===== */
.breadcrumb-wrap {
    background: #fff; border-bottom: 1px solid var(--border);
    padding: 16px 0;
}
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 14px; color: var(--text2); }
.breadcrumb a { color: var(--text2); font-weight: 500; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--text3); }
.breadcrumb .current { color: var(--text3); font-weight: 500; max-width: 260px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ===== Article Hero ===== */
.article-hero {
    position: relative;
    background:
        linear-gradient(120deg, rgba(21, 16, 31, 0.88) 0%, rgba(31, 24, 51, 0.72) 50%, rgba(107, 47, 241, 0.45) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    padding: 72px 0 64px;
    overflow: hidden;
}
.article-hero::after {
    content: "";
    position: absolute; right: -80px; top: -80px; width: 280px; height: 280px;
    background: radial-gradient(circle, rgba(107, 47, 241, 0.3) 0%, transparent 70%);
    pointer-events: none;
}
.article-hero-inner { max-width: 860px; position: relative; z-index: 1; }
.cat-badge {
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(107, 47, 241, 0.15); color: var(--primary);
    font-size: 13px; font-weight: 600; padding: 6px 16px;
    border-radius: var(--radius-pill);
    backdrop-filter: blur(4px);
    margin-bottom: 20px;
}
.article-hero .cat-badge { background: rgba(255, 255, 255, 0.15); color: #fff; }
.article-hero h1 {
    font-size: clamp(30px, 4.8vw, 46px);
    font-weight: 800; color: #fff; line-height: 1.25;
    letter-spacing: -0.02em; margin-bottom: 20px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}
.article-meta {
    display: flex; align-items: center; flex-wrap: wrap; gap: 20px;
    margin-top: 24px; color: rgba(255, 255, 255, 0.75); font-size: 14px;
}
.meta-item { display: inline-flex; align-items: center; gap: 7px; }
.meta-item svg { width: 16px; height: 16px; opacity: 0.8; }
.article-summary {
    margin-top: 24px; color: rgba(255, 255, 255, 0.85);
    font-size: 16px; line-height: 1.7; max-width: 720px;
}

/* ===== Article Main ===== */
.article-main { padding: 56px 0 72px; }
.article-body-wrap { max-width: var(--content-w); margin: 0 auto; }

/* Article content rich text */
.article-content {
    background: #fff; border-radius: var(--radius-lg);
    padding: clamp(24px, 4vw, 48px);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.article-content > * + * { margin-top: 1.5em; }
.article-content h2 {
    font-size: clamp(24px, 3vw, 30px); font-weight: 700;
    color: var(--text); margin-top: 2em; padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
}
.article-content h3 { font-size: clamp(20px, 2.4vw, 24px); font-weight: 700; color: var(--text); margin-top: 1.8em; }
.article-content p { color: #3B3544; font-size: 16px; line-height: 1.85; }
.article-content img { border-radius: 14px; max-width: 100%; height: auto; box-shadow: var(--shadow); }
.article-content a { color: var(--primary); font-weight: 600; border-bottom: 1px solid rgba(107, 47, 241, 0.3); }
.article-content a:hover { border-bottom-color: var(--primary); }
.article-content blockquote {
    border-left: 4px solid var(--primary); background: #F6F4FB;
    padding: 24px 28px; border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    color: var(--text2); font-style: italic; line-height: 1.8;
    position: relative;
}
.article-content blockquote::before {
    content: ""; position: absolute; left: -4px; top: 0; bottom: 0; width: 4px;
    background: var(--gradient); border-radius: 4px;
}
.article-content ul, .article-content ol { padding-left: 24px; color: #3B3544; line-height: 1.8; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content ul li, .article-content ol li { margin-bottom: 8px; }
.article-content table {
    width: 100%; border-collapse: collapse; font-size: 15px;
    border-radius: 12px; overflow: hidden;
}
.article-content table th, .article-content table td {
    padding: 12px 16px; border: 1px solid var(--border); text-align: left;
}
.article-content table th {
    background: rgba(107, 47, 241, 0.06); font-weight: 700; color: var(--text);
}
.article-content figure { margin: 2em 0; }
.article-content figcaption { text-align: center; color: var(--text3); font-size: 13px; margin-top: 8px; }

/* Article footer tags & pager */
.article-footer { margin-top: 32px; }
.article-tags {
    display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
    padding: 20px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}
.tag-label { font-size: 14px; font-weight: 700; color: var(--text3); }
.article-tags a {
    display: inline-flex; align-items: center;
    padding: 6px 16px; background: rgba(107, 47, 241, 0.08);
    color: var(--primary); font-size: 13px; font-weight: 600;
    border-radius: var(--radius-pill); transition: all var(--trans);
}
.article-tags a:hover { background: var(--primary); color: #fff; }
.article-pager { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.pager-link {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 20px; border-radius: 12px;
    background: #fff; border: 1px solid var(--border);
    font-size: 14px; font-weight: 600; color: var(--text2);
    transition: all var(--trans); max-width: 48%;
}
.pager-link:hover { border-color: var(--primary); color: var(--primary); box-shadow: 0 8px 20px rgba(107, 47, 241, 0.1); transform: translateY(-2px); }
.pager-link.next { margin-left: auto; }

/* Not found */
.not-found {
    background: #fff; border-radius: var(--radius-lg);
    padding: 80px 40px; text-align: center;
    border: 1px dashed var(--border);
}
.not-found-icon {
    width: 64px; height: 64px; border-radius: 50%;
    background: rgba(107, 47, 241, 0.08); color: var(--primary);
    font-size: 30px; font-weight: 800; display: flex; align-items: center; justify-content: center;
    margin: 0 auto 24px;
}
.not-found h2 { font-size: 28px; margin-bottom: 12px; }
.not-found p { color: var(--text2); margin-bottom: 28px; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 14px 32px; border-radius: var(--radius-pill);
    font-size: 15px; font-weight: 600; cursor: pointer;
    transition: all var(--trans); border: none;
}
.btn-primary { background: var(--gradient); color: #fff; box-shadow: 0 8px 20px rgba(107, 47, 241, 0.3); }
.btn-primary:hover { box-shadow: 0 12px 28px rgba(107, 47, 241, 0.4); transform: translateY(-2px); }
.btn-primary:active { transform: scale(0.98); }
.btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: rgba(107, 47, 241, 0.06); transform: translateY(-2px); }
.btn-outline:active { transform: scale(0.98); }

/* ===== Related ===== */
.related-section {
    background: #fff; padding: 72px 0;
    border-top: 1px solid var(--border);
}
.section-head { text-align: center; margin-bottom: 44px; }
.section-head h2 { font-size: clamp(26px, 3.2vw, 34px); font-weight: 800; letter-spacing: -0.02em; }
.section-head p { color: var(--text2); font-size: 15px; margin-top: 8px; }
.related-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
    max-width: var(--container-w); margin: 0 auto;
}
.related-card {
    background: var(--bg); border-radius: var(--radius-lg);
    border: 1px solid var(--border); overflow: hidden;
    transition: all var(--trans); display: block;
}
.related-card:hover {
    transform: translateY(-4px); box-shadow: var(--shadow-hover);
    border-color: rgba(107, 47, 241, 0.4);
}
.related-cover { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.related-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.related-card:hover .related-cover img { transform: scale(1.04); }
.related-cover .cat-badge {
    position: absolute; top: 12px; left: 12px; margin: 0;
    background: rgba(255, 255, 255, 0.92); color: var(--primary);
    font-size: 12px; padding: 4px 12px;
}
.related-body { padding: 20px 22px 24px; }
.related-body h3 { font-size: 17px; font-weight: 700; line-height: 1.4; margin-bottom: 8px; transition: color var(--trans); }
.related-card:hover .related-body h3 { color: var(--primary); }
.related-body p { font-size: 14px; color: var(--text2); line-height: 1.6; margin-bottom: 14px; }
.related-link { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 4px; }
.related-link::after { content: "→"; transition: transform var(--trans); }
.related-card:hover .related-link::after { transform: translateX(4px); }

/* ===== Footer ===== */
.site-footer {
    background: var(--dark); color: rgba(255, 255, 255, 0.65);
    padding: 64px 0 96px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 40px; max-width: var(--container-w); margin: 0 auto; padding: 0 24px;
}
.site-footer .logo { color: #fff; margin-bottom: 16px; }
.site-footer .logo-sub { color: rgba(255, 255, 255, 0.4) !important; }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255, 255, 255, 0.55); margin-bottom: 20px; max-width: 320px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
    width: 38px; height: 38px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(255, 255, 255, 0.08); color: rgba(255, 255, 255, 0.7);
    transition: all var(--trans);
}
.footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.footer-col h4 {
    font-size: 15px; font-weight: 700; color: #fff;
    margin-bottom: 20px; position: relative; padding-bottom: 10px;
}
.footer-col h4::after {
    content: ""; position: absolute; bottom: 0; left: 0;
    width: 28px; height: 2px; border-radius: 2px; background: var(--gradient);
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a {
    font-size: 14px; color: rgba(255, 255, 255, 0.55);
    transition: all var(--trans); padding-left: 0;
}
.footer-col ul a:hover { color: #fff; padding-left: 6px; position: relative; }
.footer-col ul a:hover::before {
    content: ""; position: absolute; left: -6px; top: 50%; transform: translateY(-50%);
    width: 3px; height: 16px; border-radius: 3px; background: var(--primary);
}
.footer-contact p { font-size: 14px; color: rgba(255, 255, 255, 0.55); line-height: 1.7; }
.footer-bottom {
    max-width: var(--container-w); margin: 48px auto 0; padding: 20px 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
    font-size: 13px; color: rgba(255, 255, 255, 0.4);
}

/* ===== Mobile Tabbar ===== */
.mobile-tabbar {
    display: none;
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 2000;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border);
    box-shadow: 0 -4px 20px rgba(21, 16, 31, 0.06);
    height: calc(var(--tabbar-h) + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
    justify-content: space-around;
}
.mobile-tabbar .tab-item {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 3px; flex: 1; color: var(--text3);
    font-size: 11px; font-weight: 600; position: relative;
    transition: color var(--trans);
}
.mobile-tabbar .tab-item svg { width: 22px; height: 22px; stroke-width: 2; }
.mobile-tabbar .tab-item.active { color: var(--primary); }
.mobile-tabbar .tab-item.active::before {
    content: ""; position: absolute; top: 6px; width: 4px; height: 4px;
    border-radius: 50%; background: var(--primary);
}

/* ===== Responsive ===== */
@media screen and (max-width: 1023px) {
    .main-nav { display: none; }
    .menu-toggle { display: flex; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media screen and (max-width: 639px) {
    .container { padding: 0 16px; }
    .breadcrumb-wrap { padding: 12px 0; }
    .breadcrumb .current { max-width: 140px; }
    .article-hero { padding: 48px 0 44px; }
    .article-meta { gap: 12px; font-size: 13px; }
    .article-content { padding: 20px 18px; }
    .article-content h2 { font-size: 22px; }
    .article-content h3 { font-size: 19px; }
    .related-grid { grid-template-columns: 1fr; gap: 16px; }
    .article-pager { flex-direction: column; }
    .pager-link { max-width: 100%; width: 100%; }
    .pager-link.next { margin-left: 0; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .site-footer { padding: 48px 0 96px; }
    .mobile-tabbar { display: flex; }
    .footer-bottom { flex-direction: column; text-align: center; }
}
@media screen and (min-width: 640px) and (max-width: 1023px) {
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .related-card:last-child { grid-column: 1 / -1; max-width: 50%; margin: 0 auto; }
}
@media screen and (max-width: 480px) {
    .related-grid { grid-template-columns: 1fr; }
    .logo { font-size: 18px; }
    .logo-icon { width: 34px; height: 34px; }
    .logo-sub { display: none; }
    .article-hero h1 { font-size: 26px; }
    .article-summary { font-size: 15px; }
    .btn { padding: 12px 24px; font-size: 14px; }
}

/* roulang page: category1 */
:root {
            --primary: #6B2FF1;
            --primary-light: #9A4DFF;
            --accent: #FF6A00;
            --cyan: #00C6D7;
            --dark-bg: #15101F;
            --dark-bg2: #1F1833;
            --page-bg: #F6F7FB;
            --card-bg: #FFFFFF;
            --text-main: #17141F;
            --text-secondary: #5C5566;
            --text-weak: #9690A5;
            --border: #E5E0F0;
            --gradient: linear-gradient(135deg, #6B2FF1 0%, #9A4DFF 50%, #FF6A00 130%);
            --gradient-dark: linear-gradient(180deg, #15101F 0%, #1F1833 100%);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-card: 0 10px 30px rgba(42, 24, 74, 0.08);
            --shadow-hover: 0 18px 40px rgba(42, 24, 74, 0.14);
            --transition: 0.25s ease;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Arial, sans-serif;
            background: var(--page-bg);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        img { max-width: 100%; display: block; }
        a { color: var(--primary); transition: color var(--transition); }
        ul, ol { list-style: none; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
            width: 100%;
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--gradient);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 13px 32px;
            border-radius: 999px;
            border: none;
            text-decoration: none;
            cursor: pointer;
            box-shadow: 0 8px 20px rgba(107, 47, 241, 0.25);
            transition: all var(--transition);
            line-height: 1.2;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(107, 47, 241, 0.35);
            color: #fff;
        }
        .btn-primary:active { transform: scale(0.98); }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(107, 47, 241, 0.35);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 30px;
            border-radius: 999px;
            border: 1.5px solid var(--primary);
            text-decoration: none;
            cursor: pointer;
            transition: all var(--transition);
            line-height: 1.2;
        }
        .btn-outline:hover {
            background: rgba(107, 47, 241, 0.06);
            transform: translateY(-2px);
        }
        .btn-outline:active { transform: scale(0.98); }
        .btn-outline:focus-visible {
            outline: 3px solid rgba(107, 47, 241, 0.25);
            outline-offset: 2px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--gradient);
            color: #fff;
            box-shadow: 0 4px 12px rgba(107, 47, 241, 0.3);
        }
        .logo-name {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-main);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .logo-sub {
            font-size: 10px;
            font-weight: 600;
            letter-spacing: 0.12em;
            color: var(--text-weak);
            margin-left: 5px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
        }
        .main-nav a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            text-decoration: none;
            border-radius: 999px;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: rgba(107, 47, 241, 0.06);
        }
        .main-nav a.active { color: var(--primary); }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--gradient);
        }
        .main-nav .nav-cta {
            background: var(--gradient);
            color: #fff;
            margin-left: 8px;
            padding: 10px 24px;
            box-shadow: 0 6px 16px rgba(107, 47, 241, 0.3);
        }
        .main-nav .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(107, 47, 241, 0.4);
            color: #fff;
            background: var(--gradient);
        }
        .main-nav a:focus-visible,
        .logo:focus-visible,
        .nav-toggle:focus-visible {
            outline: 3px solid rgba(107, 47, 241, 0.3);
            outline-offset: 2px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 12px;
            background: #fff;
            cursor: pointer;
            padding: 0;
            transition: all var(--transition);
        }
        .nav-toggle:hover { border-color: var(--primary); }
        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            border-radius: 2px;
            background: var(--text-main);
            transition: all 0.25s ease;
        }
        .nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        /* ===== 移动端抽屉 ===== */
        .mobile-drawer {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 16px 30px rgba(42, 24, 74, 0.1);
            padding: 16px;
            z-index: 99;
            transform: translateY(-12px);
            opacity: 0;
            pointer-events: none;
            transition: all 0.25s ease;
        }
        .mobile-drawer.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .drawer-nav { display: flex; flex-direction: column; }
        .drawer-nav a {
            padding: 14px 12px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            text-decoration: none;
            border-bottom: 1px solid var(--border);
            border-radius: 8px;
            transition: all var(--transition);
        }
        .drawer-nav a:hover { background: rgba(107, 47, 241, 0.05); }
        .drawer-nav a:last-child { border-bottom: none; }
        .drawer-nav a.active { color: var(--primary); background: rgba(107, 47, 241, 0.06); }
        .drawer-nav .drawer-cta {
            background: var(--gradient);
            color: #fff;
            text-align: center;
            border: none;
            margin-top: 12px;
            box-shadow: 0 6px 16px rgba(107, 47, 241, 0.3);
        }
        .drawer-nav .drawer-cta:hover { color: #fff; background: var(--gradient); }

        /* ===== 分类页页眉 ===== */
        .category-hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 96px 0 80px;
            color: #fff;
            border-bottom: 1px solid transparent;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(21, 16, 31, 0.75) 0%, rgba(21, 16, 31, 0.55) 100%);
        }
        .category-hero .container { position: relative; z-index: 1; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 22px;
        }
        .hero-badge svg { width: 14px; height: 14px; }
        .category-hero h1 {
            font-size: clamp(32px, 4vw, 46px);
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 18px;
            max-width: 680px;
        }
        .category-hero h1 span {
            background: var(--gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 16px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            margin: 0;
        }

        /* ===== 分类主体 ===== */
        .category-body { padding: 76px 0 40px; }

        .sub-nav-wrap { position: relative; }
        .sub-nav {
            position: sticky;
            top: 96px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition);
        }
        .sub-nav:hover { box-shadow: var(--shadow-hover); }
        .sub-nav h4 {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-weak);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 16px;
            padding-bottom: 14px;
            border-bottom: 1px solid var(--border);
        }
        .sub-nav ul { list-style: none; }
        .sub-nav li { margin-bottom: 4px; }
        .sub-nav a {
            display: flex;
            align-items: center;
            padding: 10px 12px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            text-decoration: none;
            transition: all var(--transition);
            gap: 10px;
        }
        .sub-nav a .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--border);
            flex-shrink: 0;
            transition: all var(--transition);
        }
        .sub-nav a:hover,
        .sub-nav a.active {
            background: rgba(107, 47, 241, 0.07);
            color: var(--primary);
        }
        .sub-nav a:hover .dot,
        .sub-nav a.active .dot {
            background: var(--primary);
            box-shadow: 0 0 0 3px rgba(107, 47, 241, 0.15);
        }

        .content-main { padding-left: 8px; }
        .content-block { margin-bottom: 56px; }
        .content-block:last-child { margin-bottom: 24px; }

        .content-head {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 14px;
        }
        .section-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: 0 6px 14px rgba(107, 47, 241, 0.25);
        }
        .content-head h2 {
            font-size: 26px;
            font-weight: 800;
            line-height: 1.3;
            margin: 0;
            color: var(--text-main);
        }
        .content-desc {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
            margin-bottom: 26px;
            max-width: 720px;
        }

        /* ===== 媒体卡片 ===== */
        .media-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .media-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .media-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(107, 47, 241, 0.3);
        }
        .media-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #eee;
        }
        .media-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .media-card:hover .card-cover img { transform: scale(1.04); }
        .card-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(21, 16, 31, 0.3) 100%);
        }
        .media-card .card-body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
        .tag-badge {
            display: inline-block;
            align-self: flex-start;
            padding: 3px 12px;
            background: rgba(107, 47, 241, 0.08);
            color: var(--primary);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .media-card h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .media-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            flex: 1;
            margin-bottom: 12px;
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            transition: all var(--transition);
        }
        .text-link:hover { gap: 8px; color: var(--accent); }
        .text-link svg { width: 14px; height: 14px; }

        /* ===== 大赛聚焦 ===== */
        .feature-list { display: flex; flex-direction: column; gap: 20px; }
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: stretch;
            transition: all var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(107, 47, 241, 0.3);
        }
        .feature-img {
            width: 40%;
            min-height: 220px;
            overflow: hidden;
            position: relative;
            flex-shrink: 0;
        }
        .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .feature-card:hover .feature-img img { transform: scale(1.04); }
        .feature-body { padding: 30px; flex: 1; display: flex; flex-direction: column; justify-content: center; }

        /* ===== 信息卡 ===== */
        .info-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .info-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 26px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .info-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(107, 47, 241, 0.25);
        }
        .card-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(107, 47, 241, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--primary);
            transition: all var(--transition);
        }
        .info-card:hover .card-icon {
            background: var(--gradient);
            color: #fff;
            box-shadow: 0 6px 14px rgba(107, 47, 241, 0.25);
        }
        .card-icon svg { width: 22px; height: 22px; }
        .info-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
        .info-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

        /* ===== 新闻列表 ===== */
        .news-list { display: flex; flex-direction: column; gap: 12px; }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 22px 26px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            text-decoration: none;
        }
        .news-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(107, 47, 241, 0.3);
        }
        .news-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--gradient);
            flex-shrink: 0;
            margin-top: 10px;
            box-shadow: 0 0 0 4px rgba(107, 47, 241, 0.12);
        }
        .news-content { flex: 1; }
        .news-content h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; color: var(--text-main); }
        .news-content p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 4px; }
        .news-meta {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-weak);
            background: rgba(0, 198, 215, 0.08);
            padding: 2px 10px;
            border-radius: 999px;
            flex-shrink: 0;
            align-self: center;
            white-space: nowrap;
        }

        /* ===== FAQ ===== */
        .faq-list { display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            position: relative;
        }
        .faq-item[open] {
            box-shadow: var(--shadow-hover);
            border-left: 3px solid transparent;
            border-image: linear-gradient(180deg, var(--primary), var(--accent)) 1;
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            list-style: none;
            min-height: 50px;
            transition: background var(--transition);
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary:hover { background: rgba(107, 47, 241, 0.04); }
        .faq-item summary .q-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(107, 47, 241, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
        }
        .faq-item summary .arrow {
            margin-left: auto;
            width: 18px;
            height: 18px;
            transition: transform 0.25s ease;
            color: var(--text-weak);
            flex-shrink: 0;
        }
        .faq-item[open] summary .arrow { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 20px 66px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ===== Mini CTA ===== */
        .mini-cta {
            background: var(--gradient-dark);
            border-radius: 24px;
            margin: 16px 0 80px;
            position: relative;
            overflow: hidden;
            padding: 52px 40px;
            color: #fff;
        }
        .mini-cta::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(155, 77, 255, 0.25);
            filter: blur(60px);
        }
        .mini-cta .cta-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }
        .mini-cta h2 { font-size: 24px; font-weight: 800; margin-bottom: 8px; }
        .mini-cta p { color: rgba(255, 255, 255, 0.75); font-size: 15px; margin: 0; }
        .mini-cta .btn-primary {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }
        .mini-cta .btn-primary:hover {
            color: var(--primary);
            background: #f0edfa;
            box-shadow: 0 10px 26px rgba(0, 0, 0, 0.25);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark-bg);
            color: #fff;
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr 0.8fr 0.9fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            margin-bottom: 16px;
            color: #fff;
        }
        .footer-brand .logo .logo-icon {
            background: var(--gradient);
            color: #fff;
        }
        .footer-brand .logo .logo-name { color: #fff; }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.75;
            margin-bottom: 20px;
        }
        .footer-social { display: flex; gap: 10px; }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.6);
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 18px;
            color: #fff;
            letter-spacing: 0.04em;
        }
        .footer-col ul { list-style: none; }
        .footer-col li { margin-bottom: 10px; position: relative; }
        .footer-col a {
            display: inline-block;
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            font-size: 14px;
            padding-left: 0;
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
            padding-left: 12px;
        }
        .footer-col a:hover::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 14px;
            border-radius: 3px;
            background: var(--gradient);
        }
        .footer-contact li {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            padding-left: 0;
        }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            color: rgba(255, 255, 255, 0.35);
            font-size: 13px;
        }
        .footer-bottom a { color: rgba(255, 255, 255, 0.35); }

        /* ===== 移动端底部 Tab ===== */
        .mobile-bottom-tab {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: #fff;
            border-top: 1px solid var(--border);
            box-shadow: 0 -6px 20px rgba(42, 24, 74, 0.08);
            display: none;
            align-items: stretch;
            z-index: 90;
            padding-bottom: env(safe-area-inset-bottom);
        }
        .tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            color: var(--text-weak);
            font-size: 11px;
            font-weight: 600;
            text-decoration: none;
            transition: color var(--transition);
            position: relative;
        }
        .tab-item svg { width: 20px; height: 20px; }
        .tab-item:hover { color: var(--primary); }
        .tab-item.active { color: var(--primary); }
        .tab-item.active::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            border-bottom-left-radius: 4px;
            border-bottom-right-radius: 4px;
            background: var(--gradient);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1023px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
            .media-grid { grid-template-columns: repeat(2, 1fr); }
            .info-cards { grid-template-columns: repeat(2, 1fr); }
            .feature-card { flex-direction: column; }
            .feature-img { width: 100%; min-height: 180px; }
            .content-main { padding-left: 0; }
            .sub-nav { position: static; margin-bottom: 28px; }
        }

        @media (max-width: 767px) {
            .header-inner { height: 64px; }
            .main-nav { display: none; }
            .nav-toggle { display: flex; }
            .mobile-drawer { top: 64px; }
            .mobile-bottom-tab { display: flex; }
            .site-footer { padding-bottom: 80px; }
            .category-hero { padding: 64px 0 48px; }
            .category-body { padding: 48px 0 24px; }
            .container { padding-left: 16px; padding-right: 16px; }
            .content-head h2 { font-size: 22px; }
            .content-block { margin-bottom: 44px; }
            .mini-cta { padding: 36px 24px; margin-bottom: 48px; }
            .mini-cta .cta-inner { flex-direction: column; align-items: flex-start; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { padding: 20px 16px; }
            .logo-sub { display: none; }
        }

        @media (max-width: 639px) {
            .media-grid { grid-template-columns: 1fr; }
            .info-cards { grid-template-columns: 1fr; }
            .news-item { flex-direction: column; gap: 10px; }
            .news-meta { align-self: flex-start; }
            .feature-body { padding: 22px; }
        }

        @media (prefers-reduced-motion: reduce) {
            * { transition: none !important; animation: none !important; }
            html { scroll-behavior: auto; }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6B2FF1;
            --primary-light: #9A4DFF;
            --orange: #FF6A00;
            --cyan: #00C6D7;
            --dark: #15101F;
            --dark-2: #1F1833;
            --bg: #F6F7FB;
            --card: #FFFFFF;
            --text: #17141F;
            --muted: #5C5566;
            --weak: #9690A5;
            --border: #E5E0F0;
            --gradient: linear-gradient(135deg, #6B2FF1 0%, #9A4DFF 50%, #FF6A00 130%);
            --dark-gradient: linear-gradient(180deg, #15101F 0%, #1F1833 100%);
            --shadow: 0 10px 30px rgba(42, 24, 74, 0.08);
            --shadow-lg: 0 18px 40px rgba(42, 24, 74, 0.14);
            --radius: 20px;
            --radius-sm: 10px;
            --transition: 0.25s ease;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        h1,
        h2,
        h3,
        h4,
        h5 {
            margin: 0;
            font-weight: 800;
            line-height: 1.25;
        }
        p {
            margin: 0;
        }
        ul {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 88px 0;
        }
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(107, 47, 241, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
        }
        .section-head h2 {
            font-size: clamp(28px, 4vw, 36px);
            margin: 14px 0 8px;
        }
        .section-head p {
            max-width: 640px;
            margin: 0 auto;
            font-size: 16px;
            line-height: 1.75;
            color: var(--muted);
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.01em;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--gradient);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            box-shadow: 0 6px 16px rgba(107, 47, 241, 0.28);
        }
        .logo-sub {
            display: block;
            font-size: 10px;
            color: var(--weak);
            letter-spacing: 0.14em;
            font-weight: 600;
            line-height: 1.2;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .main-nav a {
            padding: 10px 16px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            position: relative;
            transition: background var(--transition), color var(--transition);
        }
        .main-nav a:hover {
            color: var(--primary);
            background: rgba(107, 47, 241, 0.06);
        }
        .main-nav a.active {
            color: var(--primary);
            background: rgba(107, 47, 241, 0.08);
        }
        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 4px;
            height: 2px;
            border-radius: 2px;
            background: var(--gradient);
        }
        .main-nav .nav-cta {
            background: var(--gradient);
            color: #fff;
            padding: 10px 22px;
            border-radius: 999px;
            box-shadow: 0 8px 20px rgba(107, 47, 241, 0.3);
            margin-left: 10px;
        }
        .main-nav .nav-cta:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(107, 47, 241, 0.38);
            background: var(--gradient);
        }
        .main-nav .nav-cta:active {
            transform: scale(0.98);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: #fff;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: border var(--transition), background var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--primary);
        }

        /* ===== 分类页页眉 Hero ===== */
        .page-hero {
            padding: 92px 0 120px;
            background: linear-gradient(135deg, rgba(21, 16, 31, 0.92), rgba(31, 24, 51, 0.86)), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 106, 0, 0.28), transparent 70%);
            pointer-events: none;
        }
        .hero-inner {
            max-width: 720px;
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.22);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.05em;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 22px;
        }
        .page-hero h1 {
            font-size: clamp(36px, 5vw, 54px);
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .hero-sub {
            font-size: clamp(17px, 2vw, 20px);
            font-weight: 600;
            color: rgba(255, 255, 255, 0.95);
            margin-bottom: 12px;
        }
        .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.76);
            max-width: 620px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 30px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            cursor: pointer;
            border: none;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
        }
        .btn:focus-visible {
            outline: 3px solid rgba(107, 47, 241, 0.25);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--gradient);
            color: #fff;
            box-shadow: 0 10px 24px rgba(107, 47, 241, 0.32);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(107, 47, 241, 0.42);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.85);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }

        /* ===== 数据快览 ===== */
        .stats-wrap {
            margin-top: -64px;
            position: relative;
            z-index: 5;
            padding-bottom: 20px;
        }
        .stats-band {
            background: var(--card);
            border-radius: 24px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            display: grid;
            grid-template-columns: repeat(4, 1fr);
        }
        .stat-item {
            padding: 32px 20px;
            text-align: center;
            position: relative;
        }
        .stat-item+.stat-item::before {
            content: "";
            position: absolute;
            left: 0;
            top: 28%;
            bottom: 28%;
            width: 1px;
            background: var(--border);
        }
        .stat-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: var(--gradient);
            color: #fff;
            margin-bottom: 14px;
            box-shadow: 0 8px 18px rgba(107, 47, 241, 0.22);
        }
        .stat-num {
            font-size: clamp(30px, 4vw, 40px);
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }
        .stat-unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--muted);
            margin-left: 2px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--muted);
            margin-top: 6px;
        }
        .stat-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            color: #22A06B;
            margin-top: 6px;
            background: rgba(34, 160, 107, 0.1);
            padding: 2px 10px;
            border-radius: 999px;
        }

        /* ===== 瀑布卡片区 ===== */
        .waterfall-grid {
            display: flex;
            flex-wrap: wrap;
        }
        .waterfall-col {
            width: 50%;
            padding: 0 12px;
        }
        .waterfall-col+.waterfall-col {
            margin-top: 56px;
        }
        .waterfall-card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            margin-bottom: 24px;
        }
        .waterfall-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(107, 47, 241, 0.4);
        }
        .card-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }
        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .waterfall-card:hover .card-media img {
            transform: scale(1.04);
        }
        .card-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(21, 16, 31, 0.4));
        }
        .card-tag {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 999px;
            background: rgba(107, 47, 241, 0.09);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
        }
        .card-body {
            padding: 24px 24px 26px;
        }
        .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            margin: 14px 0 8px;
            line-height: 1.4;
        }
        .card-body p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--muted);
            margin-bottom: 16px;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap var(--transition);
        }
        .card-link:hover {
            gap: 10px;
        }

        /* ===== 适用场景 ===== */
        .scene-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scene-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 28px;
            transition: box-shadow var(--transition), transform var(--transition), background var(--transition);
        }
        .scene-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-3px);
            background: #fff;
        }
        .scene-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            margin-bottom: 18px;
            box-shadow: 0 8px 18px rgba(107, 47, 241, 0.24);
        }
        .scene-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .scene-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--muted);
        }

        /* ===== 流程 ===== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            text-align: center;
        }
        .step-item {
            position: relative;
            padding: 0 12px;
        }
        .step-item+.step-item::before {
            content: "";
            position: absolute;
            left: -20px;
            top: 28px;
            width: 40px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-light), var(--orange));
            opacity: 0.4;
            border-radius: 2px;
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--gradient);
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: 0 10px 24px rgba(107, 47, 241, 0.28);
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--muted);
            max-width: 240px;
            margin: 0 auto;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 18px;
            margin-bottom: 12px;
            overflow: hidden;
            position: relative;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .faq-item.open {
            border-color: rgba(107, 47, 241, 0.4);
            box-shadow: var(--shadow);
        }
        .faq-item.open::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--gradient);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            min-height: 56px;
            padding: 14px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            line-height: 1.4;
        }
        .faq-q {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(107, 47, 241, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .faq-icon {
            margin-left: auto;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg);
            color: var(--weak);
            flex-shrink: 0;
            transition: transform var(--transition), background var(--transition), color var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(107, 47, 241, 0.1);
            color: var(--primary);
        }
        .faq-answer {
            display: none;
            padding: 0 20px 20px 62px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--muted);
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA 条 ===== */
        .cta-strip {
            border-radius: 28px;
            padding: 64px 40px;
            background: linear-gradient(135deg, rgba(21, 16, 31, 0.94), rgba(31, 24, 51, 0.9)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            color: #fff;
            text-align: center;
        }
        .cta-strip h2 {
            font-size: clamp(26px, 3.6vw, 36px);
            margin-bottom: 12px;
        }
        .cta-strip p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.72);
            margin-bottom: 26px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-gradient);
            color: rgba(255, 255, 255, 0.72);
            margin-top: 88px;
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 18px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.72);
            transition: background var(--transition), color var(--transition), border-color var(--transition);
        }
        .footer-social a:hover {
            background: rgba(107, 47, 241, 0.3);
            border-color: rgba(107, 47, 241, 0.5);
            color: #fff;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            display: inline-block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.5;
            padding: 2px 0;
            position: relative;
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-col ul a:hover {
            color: #fff;
            padding-left: 12px;
        }
        .footer-col ul a:hover::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: var(--primary-light);
        }
        .footer-contact a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition);
        }
        .footer-contact a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 移动底部 Tab ===== */
        .bottom-tab {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: rgba(255, 255, 255, 0.96);
            -webkit-backdrop-filter: blur(10px);
            backdrop-filter: blur(10px);
            border-top: 1px solid var(--border);
            box-shadow: 0 -4px 20px rgba(21, 16, 31, 0.06);
            display: none;
            z-index: 120;
            padding-bottom: env(safe-area-inset-bottom);
            align-items: stretch;
        }
        .tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            font-size: 11px;
            font-weight: 600;
            color: var(--muted);
            position: relative;
            transition: color var(--transition);
        }
        .tab-item svg {
            width: 20px;
            height: 20px;
        }
        .tab-item.active {
            color: var(--primary);
        }
        .tab-item.active::before {
            content: "";
            position: absolute;
            top: 6px;
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--primary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1023px) and (min-width: 640px) {
            .main-nav a {
                padding: 10px 10px;
                font-size: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 639px) {
            .container {
                padding: 0 20px;
            }
            .header-inner {
                height: 60px;
            }
            .main-nav {
                display: none;
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px 24px;
                box-shadow: 0 20px 40px rgba(21, 16, 31, 0.14);
                border-bottom: 1px solid var(--border);
                gap: 6px;
                z-index: 99;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 14px 16px;
                font-size: 16px;
            }
            .main-nav a.active::after {
                left: 16px;
                right: auto;
                bottom: auto;
                top: 50%;
                transform: translateY(-50%);
                width: 3px;
                height: 20px;
                border-radius: 3px;
            }
            .main-nav .nav-cta {
                margin-top: 10px;
                margin-left: 0;
                text-align: center;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .site-main {
                padding-bottom: 72px;
            }
            .section {
                padding: 56px 0;
            }
            .page-hero {
                padding: 60px 0 110px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .stats-band {
                grid-template-columns: 1fr 1fr;
                border-radius: 20px;
            }
            .stat-item {
                padding: 24px 16px;
            }
            .stat-item:nth-child(3)::before {
                display: none;
            }
            .stat-item+.stat-item::before {
                top: auto;
                bottom: auto;
                left: 20%;
                right: 20%;
                height: 1px;
                width: 60%;
            }
            .waterfall-grid {
                flex-direction: column;
            }
            .waterfall-col {
                width: 100%;
                padding: 0;
            }
            .waterfall-col+.waterfall-col {
                margin-top: 0;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .step-item+.step-item::before {
                display: none;
            }
            .faq-answer {
                padding: 0 18px 18px;
            }
            .cta-strip {
                padding: 44px 20px;
                border-radius: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .site-footer {
                margin-top: 56px;
                padding-bottom: 70px;
            }
            .bottom-tab {
                display: flex;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition: none !important;
                animation: none !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: category3 */
:root {
            --brand-primary: #6B2FF1;
            --brand-secondary: #FF6A00;
            --brand-accent: #00C6D7;
            --bg-dark: #15101F;
            --bg-page: #F6F7FB;
            --bg-card: #FFFFFF;
            --text-main: #17141F;
            --text-secondary: #5C5566;
            --text-muted: #9690A5;
            --border-color: #E5E0F0;
            --gradient-brand: linear-gradient(135deg, #6B2FF1 0%, #9A4DFF 50%, #FF6A00 130%);
            --gradient-dark: linear-gradient(180deg, #15101F 0%, #1F1833 100%);
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 10px 30px rgba(42, 24, 74, 0.08);
            --shadow-card-hover: 0 18px 40px rgba(42, 24, 74, 0.14);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-page);
            color: var(--text-main);
            line-height: 1.75;
            margin: 0;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--brand-primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        a:hover {
            color: #5a27d6;
        }

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.25;
            font-weight: 800;
        }

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

        .grid-container {
            max-width: 1200px;
        }

        section {
            position: relative;
        }

        .section-padding {
            padding: 88px 0;
        }

        .section-head {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-head .section-overline {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--brand-primary);
            background: #F1EBFF;
            border-radius: 999px;
            padding: 5px 16px;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }

        .section-head h2 {
            font-size: clamp(26px, 4vw, 34px);
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-main);
            white-space: nowrap;
        }

        .logo:hover {
            color: var(--text-main);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--gradient-brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 16px rgba(107, 47, 241, 0.28);
            flex-shrink: 0;
        }

        .logo-sub {
            font-size: 10px;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 1.5px;
            margin-left: 6px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
        }

        .main-nav a {
            position: relative;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all 0.25s ease;
        }

        .main-nav a:hover {
            color: var(--brand-primary);
            background: #F3F0FE;
        }

        .main-nav a.active {
            color: var(--brand-primary);
            font-weight: 600;
            background: rgba(107, 47, 241, 0.05);
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 0;
            height: 2px;
            background: var(--gradient-brand);
            border-radius: 2px;
        }

        .nav-cta {
            background: var(--gradient-brand);
            color: #fff !important;
            border-radius: 999px;
            padding: 10px 24px !important;
            font-weight: 600;
            margin-left: 8px;
            box-shadow: 0 6px 20px rgba(107, 47, 241, 0.25);
            border: none;
            display: inline-flex;
            align-items: center;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(107, 47, 241, 0.35);
            background: var(--gradient-brand);
            color: #fff !important;
        }

        .hamburger {
            display: none;
            background: none;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            cursor: pointer;
            padding: 8px 10px;
            color: var(--text-main);
            transition: background 0.25s ease;
        }

        .hamburger:hover {
            background: #F3F0FE;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 76px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 20px 30px rgba(0, 0, 0, 0.08);
            z-index: 150;
            padding: 12px 20px 20px;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu a {
            display: block;
            padding: 13px 8px;
            font-size: 16px;
            color: var(--text-main);
            border-radius: 10px;
            font-weight: 500;
            transition: all 0.2s ease;
        }

        .mobile-menu a:hover {
            background: #F3F0FE;
            color: var(--brand-primary);
        }

        .mobile-menu a.active {
            color: var(--brand-primary);
            font-weight: 700;
            background: #F3F0FE;
        }

        /* ===== Mobile Tab Bar ===== */
        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-color);
            box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.06);
            z-index: 200;
            padding-bottom: env(safe-area-inset-bottom);
        }

        .mobile-tab-bar .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            color: var(--text-muted);
            font-size: 11px;
            font-weight: 500;
            position: relative;
            border: none;
            background: none;
            cursor: pointer;
            transition: color 0.25s ease;
        }

        .mobile-tab-bar .tab-item:hover {
            color: var(--brand-primary);
        }

        .mobile-tab-bar .tab-item.active {
            color: var(--brand-primary);
            font-weight: 600;
        }

        .mobile-tab-bar .tab-item.active::before {
            content: '';
            position: absolute;
            top: 5px;
            left: 50%;
            transform: translateX(-50%);
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--brand-primary);
        }

        .mobile-tab-bar .tab-item svg {
            width: 22px;
            height: 22px;
        }

        /* ===== Page Header (Category Header) ===== */
        .page-header {
            position: relative;
            padding: 88px 0 100px;
            color: #fff;
            background-image: linear-gradient(135deg, rgba(21, 16, 31, 0.88) 0%, rgba(21, 16, 31, 0.72) 100%),
                url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .page-header::after {
            content: '';
            position: absolute;
            right: -80px;
            bottom: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(107, 47, 241, 0.35) 0%, rgba(107, 47, 241, 0) 70%);
            z-index: 1;
        }

        .page-header .container {
            position: relative;
            z-index: 2;
        }

        .page-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(107, 47, 241, 0.3);
            border: 1px solid rgba(107, 47, 241, 0.5);
            color: #E5DCFF;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 20px;
        }

        .page-badge svg {
            width: 14px;
            height: 14px;
        }

        .page-header h1 {
            font-size: clamp(32px, 5vw, 46px);
            font-weight: 800;
            line-height: 1.25;
            margin: 0 0 18px;
            color: #fff;
            max-width: 720px;
        }

        .page-header .page-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.78);
            max-width: 620px;
            line-height: 1.75;
            margin: 0;
        }

        /* ===== Timeline Section ===== */
        .timeline-section {
            padding: 96px 0 48px;
        }

        .timeline {
            position: relative;
            max-width: 960px;
            margin: 0 auto;
            padding: 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--brand-primary) 0%, var(--brand-secondary) 100%);
            transform: translateX(-50%);
            opacity: 0.3;
            border-radius: 2px;
        }

        .timeline-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            position: relative;
            margin-bottom: 48px;
            align-items: start;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-item:nth-child(odd) .timeline-card {
            grid-column: 1 / 2;
        }

        .timeline-item:nth-child(odd) .timeline-meta {
            grid-column: 2 / 3;
            grid-row: 1;
            align-items: flex-start;
        }

        .timeline-item:nth-child(even) .timeline-card {
            grid-column: 2 / 3;
        }

        .timeline-item:nth-child(even) .timeline-meta {
            grid-column: 1 / 2;
            grid-row: 1;
            align-items: flex-end;
            text-align: right;
        }

        .timeline-dot {
            position: absolute;
            left: 50%;
            top: 24px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--brand-primary);
            border: 4px solid #fff;
            box-shadow: 0 0 0 3px var(--brand-primary);
            transform: translateX(-50%);
            z-index: 2;
        }

        .timeline-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .timeline-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(107, 47, 241, 0.3);
        }

        .timeline-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--text-main);
        }

        .timeline-card p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
            margin: 0 0 14px;
        }

        .timeline-tag {
            display: inline-flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .timeline-tag span {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--brand-primary);
            background: #F1EBFF;
            padding: 4px 12px;
            border-radius: 999px;
        }

        .timeline-meta {
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 20px 0;
        }

        .timeline-meta .step-num {
            font-size: 48px;
            font-weight: 800;
            line-height: 1;
            color: transparent;
            -webkit-background-clip: text;
            background-image: var(--gradient-brand);
            font-variant-numeric: tabular-nums;
        }

        .timeline-meta .step-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 8px;
            font-weight: 500;
        }

        /* ===== Watch Tips ===== */
        .tips-section {
            padding: 72px 0 88px;
        }

        .tips-grid {
            row-gap: 24px;
        }

        .tips-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .tips-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .tips-card img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .tips-card:hover img {
            transform: scale(1.03);
        }

        .tips-card-feature img {
            aspect-ratio: 16 / 9;
        }

        .tips-card-body {
            padding: 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .tip-num {
            display: inline-block;
            font-size: 13px;
            font-weight: 800;
            color: var(--brand-primary);
            background: #F1EBFF;
            border-radius: 999px;
            padding: 4px 12px;
            width: fit-content;
            margin-bottom: 14px;
        }

        .tips-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-main);
        }

        .tips-card p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 40px 0 88px;
            background: #fff;
            border-top: 1px solid var(--border-color);
        }

        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-accordion .accordion-item {
            background: #fff;
            border-radius: 18px;
            border: 1px solid var(--border-color);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .faq-accordion .accordion-item.is-active {
            border-color: rgba(107, 47, 241, 0.35);
            border-left: 3px solid var(--brand-primary);
            box-shadow: var(--shadow-card);
        }

        .faq-accordion .accordion-title {
            display: flex;
            align-items: center;
            min-height: 56px;
            padding: 12px 22px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            border: none;
            position: relative;
            line-height: 1.5;
        }

        .faq-accordion .accordion-title:hover {
            background: #FBFBFE;
            color: var(--text-main);
        }

        .faq-accordion .accordion-title::before {
            content: attr(data-prefix);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 10px;
            background: #F1EBFF;
            color: var(--brand-primary);
            font-weight: 800;
            font-size: 14px;
            margin-right: 12px;
            flex-shrink: 0;
        }

        .faq-accordion .accordion-title::after {
            content: '+';
            font-size: 22px;
            color: var(--brand-primary);
            font-weight: 700;
            position: absolute;
            right: 22px;
            top: 50%;
            transform: translateY(-50%);
            transition: transform 0.25s ease;
            background: transparent;
            border: none;
            width: auto;
            height: auto;
        }

        .faq-accordion .accordion-item.is-active .accordion-title::after {
            content: '−';
        }

        .faq-accordion .accordion-content {
            border-top: 1px dashed var(--border-color);
            border-bottom: none;
            background: #FBFBFE;
            padding: 20px 28px;
            color: var(--text-secondary);
            line-height: 1.75;
            font-size: 15px;
        }

        .faq-accordion .accordion-content[data-tab-content] {
            background: #FBFBFE;
        }

        /* ===== CTA ===== */
        .cat-cta {
            padding: 64px 0 80px;
        }

        .cat-cta-box {
            position: relative;
            background: var(--gradient-dark);
            border-radius: 24px;
            padding: 56px 64px;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .cat-cta-box::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(107, 47, 241, 0.5) 0%, rgba(107, 47, 241, 0) 70%);
            z-index: 1;
        }

        .cat-cta-box::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 106, 0, 0.4) 0%, rgba(255, 106, 0, 0) 70%);
            z-index: 1;
        }

        .cat-cta-box>* {
            position: relative;
            z-index: 2;
        }

        .cta-text h2 {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }

        .cta-text p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            margin: 0;
        }

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

        .button {
            border-radius: 999px;
            font-weight: 600;
            line-height: 1;
            transition: all 0.25s ease;
            border: none;
            cursor: pointer;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin: 0;
        }

        .button:focus {
            outline: 3px solid rgba(107, 47, 241, 0.25);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--gradient-brand);
            color: #fff;
            padding: 14px 32px;
            box-shadow: 0 8px 24px rgba(107, 47, 241, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(107, 47, 241, 0.35);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--brand-primary);
            color: var(--brand-primary);
            padding: 13px 30px;
        }

        .btn-outline:hover {
            background: rgba(107, 47, 241, 0.06);
            color: var(--brand-primary);
        }

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

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

        /* ===== Footer ===== */
        .site-footer {
            background: #15101F;
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 24px;
        }

        .site-footer .logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .site-footer .logo:hover {
            color: #fff;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            margin: 16px 0 20px;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            transition: all 0.25s ease;
        }

        .footer-social a:hover {
            background: var(--brand-primary);
            border-color: var(--brand-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: all 0.25s ease;
            position: relative;
            padding-left: 0;
        }

        .footer-col ul a:hover {
            color: #fff;
            padding-left: 12px;
        }

        .footer-col ul a:hover::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            width: 3px;
            height: 14px;
            background: var(--brand-primary);
            border-radius: 3px;
        }

        .footer-contact ul li {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            padding-left: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ===== Responsive: Medium ===== */
        @media (max-width: 1023px) and (min-width: 640px) {
            .main-nav {
                gap: 2px;
            }

            .main-nav a {
                padding: 8px 10px;
                font-size: 13px;
            }

            .main-nav a.active::after {
                left: 10px;
                right: 10px;
            }

            .nav-cta {
                padding: 8px 14px !important;
                font-size: 13px;
                margin-left: 4px;
            }

            .logo {
                font-size: 17px;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
            }

            .logo-sub {
                display: none;
            }
        }

        @media (max-width: 639px) {
            .container {
                padding: 0 20px;
            }

            .header-inner {
                height: 64px;
            }

            .main-nav {
                display: none;
            }

            .hamburger {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .mobile-tab-bar {
                display: grid;
                grid-template-columns: repeat(5, 1fr);
            }

            .logo {
                font-size: 17px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                border-radius: 10px;
            }

            .logo-sub {
                display: none;
            }

            .site-footer {
                padding-bottom: 88px;
            }

            .section-padding {
                padding: 56px 0;
            }

            .timeline-section {
                padding: 56px 0 32px;
            }

            .tips-section {
                padding: 40px 0 56px;
            }

            .faq-section {
                padding: 32px 0 56px;
            }

            .cat-cta {
                padding: 40px 0 56px;
            }

            /* Timeline mobile */
            .timeline::before {
                left: 14px;
                transform: none;
            }

            .timeline-item {
                grid-template-columns: 1fr;
                gap: 8px;
                padding-left: 36px;
                margin-bottom: 36px;
            }

            .timeline-item .timeline-card,
            .timeline-item:nth-child(odd) .timeline-card,
            .timeline-item:nth-child(even) .timeline-card {
                grid-column: 1;
                text-align: left;
            }

            .timeline-item .timeline-meta,
            .timeline-item:nth-child(odd) .timeline-meta,
            .timeline-item:nth-child(even) .timeline-meta {
                grid-column: 1;
                grid-row: auto;
                text-align: left;
                align-items: center;
                flex-direction: row;
                gap: 10px;
                padding: 0 0 4px;
            }

            .timeline-dot {
                left: 14px;
                transform: translateX(-50%);
                width: 12px;
                height: 12px;
                top: 20px;
            }

            .timeline-meta .step-num {
                font-size: 22px;
            }

            .timeline-meta .step-label {
                margin-top: 0;
                font-size: 13px;
            }

            .timeline-card {
                padding: 20px;
            }

            /* Page header mobile */
            .page-header {
                padding: 56px 0 64px;
            }

            .page-header h1 {
                font-size: 28px;
            }

            .page-header .page-desc {
                font-size: 15px;
            }

            /* FAQ */
            .faq-accordion .accordion-title {
                font-size: 15px;
                padding: 12px 48px 12px 16px;
            }

            .faq-accordion .accordion-content {
                padding: 16px 20px;
                font-size: 14px;
            }

            /* CTA */
            .cat-cta-box {
                padding: 40px 28px;
                flex-direction: column;
                align-items: flex-start;
                gap: 24px;
            }

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

            .cta-text h2 {
                font-size: 22px;
            }

            /* Footer */
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

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

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation: none !important;
                transition: none !important;
            }

            html {
                scroll-behavior: auto;
            }
        }