/* roulang page: index */
:root {
  --bg-primary: #0B0E14;
  --bg-secondary: #11161F;
  --bg-card: #151C2A;
  --gradient-primary: linear-gradient(135deg, #FF3D00 0%, #FF8A00 100%);
  --accent: #8B5CF6;
  --success: #22C55E;
  --star: #FFC93C;
  --text-title: #F2F5FA;
  --text-body: #C0C8D6;
  --text-muted: #71809A;
  --border: rgba(255,255,255,.08);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(0,0,0,.30);
  --shadow-hover: 0 16px 40px rgba(0,0,0,.45);
  --transition: .25s ease-out;
  --container-w: 1200px;
  --font-stack: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-stack); background: var(--bg-primary); color: var(--text-body); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: #fff; }
button, input { font-family: inherit; }
input:focus-visible, a:focus-visible, button:focus-visible { outline: 2px solid var(--gradient-primary); outline-offset: 2px; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 20px; }
.text-gradient { background: var(--gradient-primary); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }
.section-title { font-size: 32px; font-weight: 700; color: var(--text-title); line-height: 1.3; margin-bottom: 12px; }
.section-sub { font-size: 15px; color: var(--text-muted); margin-bottom: 40px; max-width: 640px; line-height: 1.7; }
.tag { display: inline-block; padding: 4px 12px; border-radius: var(--radius-pill); font-size: 12px; border: 1px solid var(--border); color: var(--text-body); background: rgba(255,255,255,.03); }
.btn-gradient { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--gradient-primary); color: #fff; font-weight: 600; border: none; border-radius: var(--radius-pill); padding: 14px 28px; font-size: 15px; cursor: pointer; transition: all var(--transition); box-shadow: 0 4px 16px rgba(255,61,0,.25); }
.btn-gradient:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 0 24px rgba(255,138,0,.4); }
.btn-gradient:active { transform: translateY(0) scale(.98); }
.btn-outline { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: transparent; color: var(--text-title); border: 1px solid rgba(255,255,255,.25); border-radius: var(--radius-pill); padding: 14px 28px; font-size: 15px; font-weight: 500; cursor: pointer; transition: all var(--transition); }
.btn-outline:hover { background: rgba(255,255,255,.06); color: #fff; border-color: rgba(255,255,255,.4); }
.btn-outline:active { transform: scale(.98); }
.pill-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: rgba(255,255,255,.06); border: 1px solid var(--border); border-radius: var(--radius-pill); padding: 10px 20px; font-size: 14px; color: var(--text-body); cursor: pointer; transition: all var(--transition); }
.pill-btn:hover { background: rgba(255,255,255,.12); color: #fff; transform: translateY(-1px); }
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); font-size: 15px; border: 1px dashed var(--border); border-radius: var(--radius-lg); background: rgba(255,255,255,.02); }

/* ===== Header ===== */
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(11,14,20,.88); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.header-top { height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--text-title); letter-spacing: .5px; }
.logo-icon { width: 36px; height: 36px; border-radius: 10px; background: var(--gradient-primary); display: flex; align-items: center; justify-content: center; font-size: 16px; color: #fff; font-weight: 800; }
.header-right { display: flex; align-items: center; gap: 12px; }
.header-search { display: flex; align-items: center; background: rgba(255,255,255,.08); border-radius: var(--radius-pill); padding: 0 16px; height: 40px; width: 220px; transition: border-color var(--transition), background var(--transition); }
.header-search i { color: var(--text-muted); font-size: 14px; margin-right: 8px; }
.header-search input { background: transparent; border: none; outline: none; color: var(--text-title); font-size: 13px; width: 100%; }
.header-search input::placeholder { color: var(--text-muted); }
.header-search:focus-within { border: 1px solid rgba(255,61,0,.6); background: rgba(255,255,255,.1); }
.header-cta { display: inline-flex; align-items: center; gap: 6px; background: var(--gradient-primary); color: #fff; font-size: 13px; font-weight: 600; border-radius: var(--radius-pill); padding: 10px 20px; transition: all var(--transition); cursor: pointer; border: none; }
.header-cta:hover { box-shadow: 0 0 20px rgba(255,138,0,.4); color: #fff; transform: translateY(-1px); }
.header-nav { height: 48px; display: flex; align-items: center; }
.nav-tabs { display: flex; gap: 8px; list-style: none; overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none; white-space: nowrap; }
.nav-tabs::-webkit-scrollbar { display: none; }
.nav-tabs li { flex-shrink: 0; }
.nav-tabs a { display: inline-flex; align-items: center; gap: 6px; padding: 8px 18px; border-radius: var(--radius-pill); font-size: 14px; font-weight: 500; color: var(--text-body); transition: all var(--transition); }
.nav-tabs a i { font-size: 13px; }
.nav-tabs a:hover { background: rgba(255,255,255,.08); color: #fff; }
.nav-tabs a.active { background: var(--gradient-primary); color: #fff; font-weight: 600; box-shadow: 0 4px 14px rgba(255,61,0,.25); }

/* ===== Hero ===== */
.hero { position: relative; background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat; padding: 80px 0 90px; }
.hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(100deg, rgba(11,14,20,.95) 30%, rgba(11,14,20,.75) 60%, rgba(11,14,20,.55) 100%); }
.hero .container { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(255,255,255,.06); border: 1px solid var(--border); border-radius: var(--radius-pill); padding: 6px 14px; font-size: 12px; color: var(--text-body); margin-bottom: 24px; }
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); display: inline-block; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }
.hero h1 { font-size: 44px; font-weight: 800; color: var(--text-title); line-height: 1.18; margin-bottom: 20px; letter-spacing: -0.5px; }
.hero-sub { font-size: 16px; color: var(--text-body); line-height: 1.8; margin-bottom: 36px; max-width: 520px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-stats { display: flex; gap: 14px; flex-wrap: wrap; }
.stat-badge { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08); border-radius: 16px; padding: 12px 22px; display: inline-flex; align-items: center; gap: 10px; }
.stat-badge .num { font-size: 28px; font-weight: 800; background: var(--gradient-primary); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; font-variant-numeric: tabular-nums; line-height: 1; }
.stat-badge .label { font-size: 12px; color: var(--text-muted); }
.hero-visual { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-hover); }
.hero-visual img { width: 100%; height: 320px; object-fit: cover; }
.hero-float-card { position: absolute; background: rgba(17,22,31,.92); backdrop-filter: blur(8px); border: 1px solid var(--border); border-radius: 14px; padding: 14px 18px; box-shadow: var(--shadow-card); display: flex; align-items: center; gap: 12px; }
.hero-float-card .fc-icon { width: 36px; height: 36px; border-radius: 10px; background: var(--gradient-primary); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 14px; }
.hero-float-card .fc-num { font-size: 18px; font-weight: 800; color: var(--text-title); line-height: 1.2; font-variant-numeric: tabular-nums; }
.hero-float-card .fc-label { font-size: 12px; color: var(--text-muted); }
.fc-1 { top: 20px; right: -16px; }
.fc-2 { bottom: 24px; left: -16px; }

/* ===== Ticker ===== */
.ticker { background: var(--bg-secondary); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 12px 0; overflow: hidden; }
.ticker-inner { display: flex; gap: 40px; align-items: center; justify-content: flex-start; }
.ticker-item { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-body); white-space: nowrap; }
.ticker-item i { color: var(--success); font-size: 12px; }
.ticker-item .highlight { color: var(--text-title); font-weight: 600; }

/* ===== Feature Cards ===== */
.feature-section { padding: 100px 0; }
.feature-scroll { display: flex; gap: 24px; overflow-x: auto; padding: 10px 4px 30px; scrollbar-width: thin; scrollbar-color: rgba(255,255,255,.15) transparent; }
.feature-scroll::-webkit-scrollbar { height: 6px; }
.feature-scroll::-webkit-scrollbar-track { background: transparent; }
.feature-scroll::-webkit-scrollbar-thumb { background: rgba(255,255,255,.15); border-radius: 10px; }
.feature-card { min-width: 250px; max-width: 280px; background: var(--bg-card); border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow-card); transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition); }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(255,61,0,.5); }
.feature-cover { height: 150px; overflow: hidden; }
.feature-cover img { width: 100%; height: 100%; object-fit: cover; }
.feature-body { padding: 18px 20px 22px; }
.feature-body h3 { font-size: 16px; font-weight: 700; color: var(--text-title); margin-bottom: 8px; }
.feature-body p { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin-bottom: 0; }

/* ===== System Requirements ===== */
.sys-section { padding: 100px 0; background: var(--bg-secondary); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.sys-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.sys-card { background: var(--bg-card); border-radius: var(--radius-lg); padding: 36px 40px; border: 1px solid var(--border); box-shadow: var(--shadow-card); }
.sys-card h3 { font-size: 18px; font-weight: 700; color: var(--text-title); margin-bottom: 6px; }
.sys-platform { display: inline-flex; gap: 6px; flex-wrap: wrap; margin-bottom: 22px; }
.sys-platform span { font-size: 12px; background: rgba(255,255,255,.05); border: 1px solid var(--border); border-radius: var(--radius-pill); padding: 4px 12px; color: var(--text-muted); }
.sys-row { display: flex; justify-content: space-between; align-items: flex-start; padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.sys-row:last-child { border-bottom: none; }
.sys-row .name { color: var(--text-muted); }
.sys-row .value { color: var(--text-title); font-weight: 500; text-align: right; max-width: 65%; }

/* ===== Reviews ===== */
.review-section { padding: 100px 0; }
.review-summary { display: grid; grid-template-columns: 260px 1fr; gap: 32px; }
.score-card { background: var(--bg-card); border-radius: var(--radius-lg); padding: 36px; border: 1px solid var(--border); text-align: center; display: flex; flex-direction: column; justify-content: center; align-items: center; }
.score-num { font-size: 56px; font-weight: 800; background: var(--gradient-primary); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; line-height: 1.1; font-variant-numeric: tabular-nums; }
.score-stars { color: var(--star); font-size: 20px; margin: 12px 0 8px; letter-spacing: 4px; }
.score-count { font-size: 13px; color: var(--text-muted); }
.review-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.review-card { background: var(--bg-card); border-radius: var(--radius-md); padding: 22px 24px; border: 1px solid var(--border); display: flex; flex-direction: column; }
.review-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.review-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--gradient-primary); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 14px; font-weight: 600; }
.review-name { font-size: 14px; font-weight: 600; color: var(--text-title); }
.review-stars { color: var(--star); font-size: 12px; margin-top: 2px; letter-spacing: 2px; }
.review-text { font-size: 14px; line-height: 1.7; color: var(--text-body); flex: 1; margin-bottom: 12px; }
.review-time { font-size: 12px; color: var(--text-muted); }

/* ===== CTA ===== */
.cta-section { padding: 100px 0; position: relative; overflow: hidden; }
.cta-card { position: relative; background: var(--bg-card); border-radius: var(--radius-lg); padding: 70px 40px; text-align: center; overflow: hidden; border: 1px solid var(--border); }
.cta-card::before { content: ''; position: absolute; width: 400px; height: 400px; background: radial-gradient(circle, rgba(255,61,0,.25), transparent 70%); top: -150px; right: -150px; pointer-events: none; }
.cta-card::after { content: ''; position: absolute; width: 300px; height: 300px; background: radial-gradient(circle, rgba(255,138,0,.18), transparent 70%); bottom: -120px; left: -120px; pointer-events: none; }
.cta-card .inner { position: relative; z-index: 2; }
.cta-card h2 { font-size: 32px; font-weight: 700; color: var(--text-title); margin-bottom: 12px; }
.cta-card p { font-size: 15px; color: var(--text-muted); margin-bottom: 40px; max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-btns { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }
.platform-btn { display: inline-flex; align-items: center; gap: 12px; background: rgba(255,255,255,.05); border: 1px solid var(--border); border-radius: var(--radius-pill); padding: 14px 24px; transition: all var(--transition); cursor: pointer; }
.platform-btn:hover { background: rgba(255,255,255,.1); border-color: rgba(255,61,0,.5); box-shadow: 0 0 20px rgba(255,138,0,.15); transform: translateY(-2px); }
.platform-btn .p-icon { font-size: 22px; color: var(--text-title); }
.platform-btn .p-name { font-size: 14px; font-weight: 600; color: var(--text-title); line-height: 1.2; }
.platform-btn .p-ver { font-size: 11px; color: var(--text-muted); font-weight: 400; display: block; }
.platform-btn .badge { position: absolute; top: -6px; right: -10px; background: var(--gradient-primary); color: #fff; font-size: 10px; font-weight: 600; border-radius: var(--radius-pill); padding: 2px 8px; }
.platform-btn { position: relative; }

/* ===== News ===== */
.news-section { padding: 100px 0; background: var(--bg-secondary); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.news-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 40px; }
.news-more { font-size: 14px; color: var(--text-muted); display: inline-flex; align-items: center; gap: 6px; transition: color var(--transition); }
.news-more:hover { color: var(--text-title); }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item { display: flex; gap: 20px; background: var(--bg-card); border-radius: var(--radius-md); padding: 18px; border: 1px solid var(--border); transition: all var(--transition); }
.news-item:hover { border-color: rgba(255,61,0,.4); transform: translateX(4px); box-shadow: var(--shadow-card); }
.news-thumb { width: 112px; height: 84px; border-radius: 12px; overflow: hidden; flex-shrink: 0; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-body { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.news-body h3 { font-size: 16px; font-weight: 600; color: var(--text-title); line-height: 1.4; transition: color var(--transition); }
.news-item:hover .news-body h3 { color: #FF8A00; }
.news-body p { font-size: 13px; color: var(--text-muted); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.news-meta .tag { font-size: 11px; padding: 2px 10px; }
.news-meta time { font-size: 12px; color: var(--text-muted); }
.news-item .read-more { margin-left: auto; font-size: 12px; color: #FF8A00; display: inline-flex; align-items: center; gap: 4px; opacity: 0; transition: opacity var(--transition); }
.news-item:hover .read-more { opacity: 1; }

/* ===== FAQ ===== */
.faq-section { padding: 100px 0; }
.accordion { list-style: none; }
.accordion-item { background: var(--bg-card); border-radius: var(--radius-md); margin-bottom: 14px; overflow: hidden; border: 1px solid var(--border); transition: border-color var(--transition); }
.accordion-item:hover { border-color: rgba(255,255,255,.15); }
.accordion-title { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; cursor: pointer; font-size: 15px; font-weight: 600; color: var(--text-title); transition: background var(--transition); }
.accordion-title i { font-size: 16px; color: var(--text-muted); transition: transform .3s ease; }
.accordion-item.is-open .accordion-title i { transform: rotate(45deg); }
.accordion-item.is-open { border-left: 3px solid #FF3D00; }
.accordion-content { display: none; padding: 0 24px 22px; font-size: 14px; color: var(--text-body); line-height: 1.8; }
.accordion-item.is-open .accordion-content { display: block; }

/* ===== Sub CTA ===== */
.sub-cta { padding: 0 0 100px; }
.sub-cta-card { background: var(--gradient-primary); border-radius: var(--radius-lg); padding: 60px 40px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px; box-shadow: 0 16px 40px rgba(255,61,0,.25); }
.sub-cta-card h2 { font-size: 28px; font-weight: 800; color: #fff; margin-bottom: 8px; }
.sub-cta-card p { color: rgba(255,255,255,.85); font-size: 15px; }
.sub-cta-card .btn { background: #fff; color: #FF3D00; font-weight: 700; border-radius: var(--radius-pill); padding: 14px 32px; font-size: 15px; display: inline-flex; align-items: center; gap: 8px; transition: all var(--transition); border: none; }
.sub-cta-card .btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,.25); color: #FF3D00; }

/* ===== Footer ===== */
.site-footer { background: var(--bg-primary); border-top: 1px solid var(--border); padding: 60px 0 0; }
.footer-main { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 48px; padding-bottom: 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.footer-social .si { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,.05); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--text-muted); font-size: 14px; transition: all var(--transition); cursor: pointer; }
.footer-social .si:hover { background: rgba(255,255,255,.12); color: #fff; }
.footer-links h4, .footer-news h4 { font-size: 15px; font-weight: 600; color: var(--text-title); margin-bottom: 16px; }
.footer-links ul { list-style: none; }
.footer-links ul li { margin-bottom: 10px; }
.footer-links ul li a { font-size: 14px; color: var(--text-muted); transition: color var(--transition); }
.footer-links ul li a:hover { color: #FF8A00; }
.footer-news p { font-size: 13px; color: var(--text-muted); margin-bottom: 16px; line-height: 1.6; }
.footer-subscribe { display: flex; background: var(--bg-card); border-radius: var(--radius-pill); padding: 4px; border: 1px solid var(--border); }
.footer-subscribe input { flex: 1; background: transparent; border: none; outline: none; padding: 8px 14px; font-size: 13px; color: var(--text-title); min-width: 0; }
.footer-subscribe input::placeholder { color: var(--text-muted); }
.footer-subscribe button { background: var(--gradient-primary); color: #fff; border: none; border-radius: var(--radius-pill); padding: 10px 20px; font-size: 13px; font-weight: 600; cursor: pointer; transition: all var(--transition); white-space: nowrap; }
.footer-subscribe button:hover { box-shadow: 0 0 16px rgba(255,138,0,.4); }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px 0; text-align: center; font-size: 13px; color: var(--text-muted); }
.footer-bottom a { color: var(--text-muted); }

/* ===== Back To Top ===== */
.back-top { position: fixed; right: 24px; bottom: 24px; width: 44px; height: 44px; border-radius: 50%; background: var(--gradient-primary); color: #fff; border: none; font-size: 16px; display: flex; align-items: center; justify-content: center; cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(10px); transition: all var(--transition); z-index: 999; box-shadow: 0 6px 20px rgba(255,61,0,.3); }
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { box-shadow: 0 0 24px rgba(255,138,0,.5); }

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .section-title { font-size: 28px; }
  .cta-card h2 { font-size: 26px; }
  .sub-cta-card h2 { font-size: 24px; }
  .review-summary { grid-template-columns: 200px 1fr; }
  .hero h1 { font-size: 36px; line-height: 1.25; }
}
@media (max-width: 767px) {
  .header-top { height: auto; padding: 12px 0; flex-wrap: wrap; gap: 10px; }
  .header-search { width: 100%; order: 3; }
  .header-cta { padding: 8px 16px; font-size: 13px; }
  .header-nav { height: auto; padding: 0 0 8px; }
  .nav-tabs { gap: 6px; }
  .nav-tabs a { padding: 6px 14px; font-size: 13px; }
  .hero { padding: 60px 0 70px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 30px; }
  .hero-sub { font-size: 15px; }
  .hero-btns .btn-gradient, .hero-btns .btn-outline { width: 100%; }
  .hero-stats { gap: 10px; }
  .stat-badge { flex: 1; min-width: 100px; justify-content: center; }
  .feature-section, .sys-section, .review-section, .cta-section, .news-section, .faq-section { padding: 60px 0; }
  .sys-grid { grid-template-columns: 1fr; gap: 16px; }
  .sys-card { padding: 24px; }
  .review-summary { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .cta-card { padding: 50px 24px; }
  .cta-btns { flex-direction: column; }
  .platform-btn { width: 100%; justify-content: center; }
  .news-item { flex-direction: column; padding: 14px; }
  .news-thumb { width: 100%; height: 160px; }
  .news-body h3 { font-size: 15px; }
  .footer-main { grid-template-columns: 1fr; gap: 32px; }
  .sub-cta-card { padding: 40px 24px; flex-direction: column; text-align: center; }
  .sub-cta-card .btn { width: 100%; justify-content: center; }
  .accordion-title { padding: 16px 18px; font-size: 14px; }
  .accordion-content { padding: 0 18px 18px; }
  .back-top { right: 16px; bottom: 16px; width: 40px; height: 40px; }
}
@media (max-width: 520px) {
  .hero-visual img { height: 220px; }
  .fc-1 { right: -8px; }
  .fc-2 { left: -8px; }
  .hero-float-card { padding: 10px 14px; }
  .hero-float-card .fc-num { font-size: 15px; }
  .hero-float-card .fc-label { font-size: 11px; }
  .stat-badge .num { font-size: 22px; }
  .stat-badge .label { font-size: 11px; }
}

/* roulang page: category1 */
:root{
  --bg-primary:#0B0E14;
  --bg-secondary:#11161F;
  --bg-card:#151C2A;
  --gradient-main:linear-gradient(135deg,#FF3D00 0%,#FF8A00 100%);
  --accent:#8B5CF6;
  --success:#22C55E;
  --star-color:#FFC93C;
  --text-title:#F2F5FA;
  --text-body:#C0C8D6;
  --text-muted:#71809A;
  --border-color:rgba(255,255,255,.08);
  --radius-lg:20px;
  --radius-md:14px;
  --radius-pill:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,.30);
  --shadow-hover:0 16px 40px rgba(0,0,0,.45);
  --transition:.25s ease-out;
  --font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-family);
  background:var(--bg-primary);
  color:var(--text-body);
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--text-title);text-decoration:none;transition:color var(--transition)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);padding:14px 28px;font-weight:600;
  transition:all var(--transition);border:1px solid transparent;cursor:pointer;
  min-height:44px;font-size:15px;white-space:nowrap;
}
.btn-primary{
  background:var(--gradient-main);color:#fff;box-shadow:0 4px 16px rgba(255,138,0,.25);
}
.btn-primary:hover,.btn-primary:focus{
  box-shadow:0 0 24px rgba(255,138,0,.4);transform:translateY(-2px);color:#fff;
}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-outline{
  background:transparent;border-color:rgba(255,255,255,.35);color:var(--text-title);
}
.btn-outline:hover,.btn-outline:focus{background:rgba(255,255,255,.06);border-color:#fff;color:#fff}
.btn-outline:active{transform:scale(.98)}
.btn-block{width:100%}
.btn:focus-visible{outline:2px solid #FF8A00;outline-offset:2px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(11,14,20,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border-color);
}
.header-top{
  height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--text-title)}
.logo-icon{
  width:38px;height:38px;border-radius:12px;background:var(--gradient-main);
  display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:17px;
  box-shadow:0 4px 14px rgba(255,138,0,.35);
}
.header-right{display:flex;align-items:center;gap:14px}
.header-search{
  position:relative;display:flex;align-items:center;width:220px;
}
.header-search i{
  position:absolute;left:15px;font-size:14px;color:var(--text-muted);pointer-events:none;
}
.header-search input{
  width:100%;height:40px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.08);border:1px solid transparent;color:var(--text-title);
  padding:0 16px 0 40px;font-size:14px;transition:border-color var(--transition),background var(--transition);
}
.header-search input::placeholder{color:var(--text-muted)}
.header-search input:focus{
  outline:none;border-color:#FF8A00;background:rgba(255,255,255,.12);
}
.header-cta{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--gradient-main);color:#fff;border-radius:var(--radius-pill);
  padding:10px 22px;font-weight:700;font-size:14px;transition:all var(--transition);
  box-shadow:0 4px 14px rgba(255,138,0,.3);
}
.header-cta:hover{box-shadow:0 0 24px rgba(255,138,0,.45);transform:translateY(-1px);color:#fff}
.header-cta:active{transform:scale(.97)}
.header-nav{
  height:48px;display:flex;align-items:center;overflow-x:auto;
  scrollbar-width:none;border-top:1px solid rgba(255,255,255,.05);
}
.header-nav::-webkit-scrollbar{display:none}
.nav-tabs{display:flex;gap:8px;padding:0;margin:0;list-style:none;white-space:nowrap;align-items:center;flex:1}
.nav-tabs li{margin:0}
.nav-tabs a{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 18px;border-radius:var(--radius-pill);
  color:var(--text-body);font-size:14px;font-weight:500;
  transition:all var(--transition);
}
.nav-tabs a i{font-size:13px;opacity:.8}
.nav-tabs a:hover{background:rgba(255,255,255,.08);color:var(--text-title)}
.nav-tabs a:focus-visible{outline:2px solid #FF8A00;outline-offset:2px;color:#fff}
.nav-tabs a.active{background:var(--gradient-main);color:#fff;box-shadow:0 4px 12px rgba(255,138,0,.3)}
.nav-tabs a:active{transform:scale(.96)}

/* 分类标题条 */
.category-banner{
  position:relative;background-size:cover;background-position:center;
  padding:84px 0 72px;border-bottom:1px solid var(--border-color);
}
.banner-overlay{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(11,14,20,.92) 25%,rgba(11,14,20,.65) 70%,rgba(17,22,31,.45) 100%);
}
.banner-inner{position:relative;z-index:2;max-width:760px}
.banner-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 16px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.08);border:1px solid var(--border-color);
  color:var(--text-title);font-size:13px;font-weight:600;margin-bottom:18px;
}
.banner-chip i{color:#FF8A00;font-size:12px}
.category-banner h1{
  font-size:48px;font-weight:800;line-height:1.15;color:var(--text-title);
  margin-bottom:16px;letter-spacing:.5px;
}
.category-banner h1 span{background:var(--gradient-main);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.category-banner .banner-desc{font-size:17px;color:var(--text-body);line-height:1.7;margin-bottom:28px;max-width:640px}
.banner-actions{display:flex;gap:14px;flex-wrap:wrap}

/* 主体 */
.category-main{padding:72px 0 40px;background:var(--bg-primary)}
.main-col{display:flex;flex-direction:column;gap:44px;min-width:0}

/* 板块标题 */
.section-head{margin-bottom:28px}
.section-head .sec-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:13px;background:var(--gradient-main);
  color:#fff;font-size:17px;margin-right:13px;vertical-align:middle;
  box-shadow:0 4px 14px rgba(255,138,0,.28);
}
.section-head h2{display:inline-block;font-size:28px;font-weight:750;color:var(--text-title);vertical-align:middle;letter-spacing:.3px}
.section-head .sub{font-size:14px;color:var(--text-muted);margin-top:6px}
.section-line{
  height:1px;background:linear-gradient(90deg,rgba(255,255,255,.14) 0%,rgba(255,255,255,.03) 60%,transparent 100%);
  margin-top:16px;border:none;
}

/* 卡片通用 */
.card{
  background:var(--bg-card);border-radius:var(--radius-lg);
  border:1px solid var(--border-color);
  box-shadow:var(--shadow-card);
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(255,138,0,.25);
}

/* 官方渠道说明 */
.intro-card{padding:38px;}
.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:26px}
.intro-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.05);
  transition:background var(--transition);
}
.intro-item:hover{background:rgba(255,255,255,.06)}
.intro-item .icon{
  width:38px;height:38px;min-width:38px;border-radius:11px;
  background:var(--gradient-main);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
}
.intro-item h4{font-size:15px;color:var(--text-title);font-weight:700;margin-bottom:4px}
.intro-item p{font-size:13px;color:var(--text-muted);line-height:1.6}

/* 下载流程时间线 */
.flow-card{padding:38px}
.flow-steps{display:flex;flex-direction:column;gap:0;margin-top:8px}
.flow-step{position:relative;display:flex;gap:22px;padding-bottom:34px}
.flow-step:last-child{padding-bottom:0}
.flow-step::before{
  content:'';position:absolute;left:20px;top:45px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(255,138,0,.5),rgba(255,255,255,.08));
}
.flow-step:last-child::before{display:none}
.flow-num{
  width:42px;height:42px;min-width:42px;border-radius:50%;
  background:var(--gradient-main);color:#fff;font-weight:800;font-size:16px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 5px rgba(255,138,0,.12),0 5px 14px rgba(255,138,0,.3);
}
.flow-body{flex:1;padding-top:2px}
.flow-body h3{font-size:19px;font-weight:750;color:var(--text-title);margin-bottom:8px}
.flow-body p{font-size:14px;color:var(--text-body);line-height:1.7;margin-bottom:14px;max-width:560px}
.flow-media{
  border-radius:var(--radius-md);overflow:hidden;border:1px solid rgba(255,255,255,.06);
  max-width:520px;
}
.flow-media img{width:100%;height:210px;object-fit:cover;transition:transform .6s ease}
.flow-media:hover img{transform:scale(1.03)}

/* 版本对照 */
.version-card{padding:38px}
.version-list{display:flex;flex-direction:column}
.version-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 6px;border-bottom:1px solid rgba(255,255,255,.06);
  transition:background var(--transition);border-radius:12px;
}
.version-row:hover{background:rgba(255,255,255,.03)}
.version-row:last-child{border-bottom:none}
.version-platform{display:flex;align-items:center;gap:14px;min-width:180px}
.platform-icon{
  width:40px;height:40px;min-width:40px;border-radius:11px;
  background:rgba(255,255,255,.07);display:flex;align-items:center;justify-content:center;
  color:#FF8A00;font-size:18px;
}
.version-platform strong{display:block;font-size:15px;color:var(--text-title)}
.version-platform span{font-size:12px;color:var(--text-muted)}
.version-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.version-meta .ver{
  font-weight:700;color:var(--success);
  background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.2);
  padding:3px 12px;border-radius:var(--radius-pill);font-size:13px;
}
.version-meta .size{font-size:13px;color:var(--text-muted);white-space:nowrap}
.version-meta .req{font-size:13px;color:var(--text-body);white-space:nowrap}
.version-note{
  margin-top:20px;padding:14px 18px;border-radius:var(--radius-md);
  background:rgba(139,92,246,.08);border:1px solid rgba(139,92,246,.2);
  color:var(--text-body);font-size:13px;display:flex;gap:10px;align-items:flex-start;
}
.version-note i{color:#8B5CF6;margin-top:3px}

/* 问题排解 */
.trouble-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.trouble-item{
  padding:24px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.05);
  transition:all var(--transition);
}
.trouble-item:hover{background:rgba(255,255,255,.05);border-color:rgba(255,138,0,.25);transform:translateY(-3px)}
.trouble-item .t-icon{
  width:40px;height:40px;border-radius:11px;background:rgba(255,138,0,.14);
  color:#FF8A00;display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:12px;
}
.trouble-item h4{font-size:15px;font-weight:700;color:var(--text-title);margin-bottom:6px}
.trouble-item p{font-size:13px;color:var(--text-muted);line-height:1.6}

/* FAQ */
.faq-card{padding:38px}
.accordion.custom-accordion{background:transparent;margin:0}
.accordion.custom-accordion .accordion-item{
  background:var(--bg-secondary);border:1px solid rgba(255,255,255,.07);
  border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;transition:border-color var(--transition);
}
.accordion.custom-accordion .accordion-item:hover{border-color:rgba(255,138,0,.3)}
.accordion.custom-accordion .accordion-item.is-active{border-color:rgba(255,138,0,.5)}
.accordion.custom-accordion .accordion-title{
  color:var(--text-title);font-size:15px;font-weight:600;
  padding:18px 46px 18px 18px;border:none;position:relative;display:block;
  background:transparent;line-height:1.5;min-height:56px;transition:background var(--transition);
}
.accordion.custom-accordion .accordion-title:hover{background:rgba(255,255,255,.02)}
.accordion.custom-accordion .accordion-title::after{
  content:'\f067';font-family:'Font Awesome 6 Free';font-weight:900;
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:24px;height:24px;display:flex;align-items:center;justify-content:center;
  color:#FF8A00;font-size:13px;transition:transform .3s ease;border-radius:50%;
  background:rgba(255,138,0,.1);
}
.accordion.custom-accordion .accordion-item.is-active .accordion-title::after{transform:translateY(-50%) rotate(45deg)}
.accordion.custom-accordion .accordion-content{
  padding:0 18px 18px;color:var(--text-body);font-size:14px;line-height:1.8;
  border:none;background:transparent;
}
.accordion.custom-accordion .accordion-content p{color:var(--text-body)}

/* 侧边栏 */
.side-col{display:flex;flex-direction:column;gap:24px;min-width:0}
.side-card{padding:28px;background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border-color);box-shadow:var(--shadow-card)}
.side-card h3{
  font-size:17px;font-weight:750;color:var(--text-title);
  margin-bottom:18px;padding-bottom:14px;position:relative;
}
.side-card h3::after{
  content:'';position:absolute;left:0;bottom:0;width:34px;height:3px;
  background:var(--gradient-main);border-radius:99px;
}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud .tag{
  padding:6px 15px;border-radius:var(--radius-pill);font-size:13px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);
  color:var(--text-body);transition:all var(--transition);
}
.tag-cloud .tag:hover{
  background:var(--gradient-main);color:#fff;border-color:transparent;transform:translateY(-2px);
  box-shadow:0 6px 16px rgba(255,138,0,.3);
}
.quick-links{list-style:none;margin:0;padding:0}
.quick-links li{margin-bottom:8px;border-radius:12px;transition:background var(--transition)}
.quick-links li:last-child{margin-bottom:0}
.quick-links a{
  display:flex;align-items:center;gap:10px;padding:11px 15px;
  color:var(--text-body);font-size:14px;border-radius:12px;
  background:rgba(255,255,255,.02);transition:all var(--transition);
}
.quick-links a i{color:#FF8A00;font-size:11px}
.quick-links a:hover{background:rgba(255,138,0,.1);color:var(--text-title);padding-left:19px}
.rec-item{
  display:flex;align-items:center;gap:12px;padding:10px;border-radius:14px;
  transition:all var(--transition);border:1px solid transparent;
}
.rec-item:hover{background:rgba(255,255,255,.05);border-color:rgba(255,138,0,.25);transform:translateX(3px)}
.rec-item img{
  width:68px;height:50px;object-fit:cover;border-radius:8px;flex-shrink:0;
}
.rec-item span{font-size:13px;color:var(--text-body);line-height:1.4}
.rec-item:hover span{color:var(--text-title)}

/* CTA */
.category-cta{padding:80px 0;background:var(--bg-secondary);position:relative;overflow:hidden}
.category-cta::before{
  content:'';position:absolute;top:-80px;right:-60px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(255,138,0,.22) 0%,transparent 70%);pointer-events:none;
}
.category-cta::after{
  content:'';position:absolute;bottom:-100px;left:-40px;width:260px;height:260px;
  background:radial-gradient(circle,rgba(139,92,246,.18) 0%,transparent 70%);pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;text-align:center;max-width:760px;margin:0 auto;
  background:var(--bg-card);border:1px solid var(--border-color);
  border-radius:calc(var(--radius-lg) + 6px);padding:56px 40px;box-shadow:var(--shadow-card);
}
.cta-inner h2{font-size:30px;font-weight:800;color:var(--text-title);margin-bottom:14px;letter-spacing:.3px}
.cta-inner p{font-size:15px;color:var(--text-muted);margin-bottom:30px;line-height:1.7}
.cta-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* Footer */
.site-footer{background:var(--bg-secondary);border-top:1px solid var(--border-color);padding-top:64px;position:relative}
.site-footer::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,138,0,.6),transparent);
}
.footer-main{display:grid;grid-template-columns:1.2fr 1fr 1.4fr;gap:48px;padding-bottom:44px}
.footer-brand p{font-size:14px;color:var(--text-muted);margin-top:16px;line-height:1.7;max-width:280px}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social .si{
  width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;
  color:var(--text-muted);font-size:16px;cursor:pointer;transition:all var(--transition);
}
.footer-social .si:hover{background:var(--gradient-main);color:#fff;border-color:transparent;transform:translateY(-3px)}
.footer-links h4,.footer-news h4{font-size:16px;font-weight:700;color:var(--text-title);margin-bottom:16px}
.footer-links ul{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--text-muted);font-size:14px;transition:all var(--transition);display:inline-flex;align-items:center;gap:8px}
.footer-links a::before{content:'›';color:#FF8A00;font-weight:700}
.footer-links a:hover{color:var(--text-title);padding-left:4px}
.footer-news p{font-size:14px;color:var(--text-muted);margin-bottom:18px;line-height:1.7}
.footer-subscribe{display:flex;gap:10px;max-width:400px}
.footer-subscribe input{
  flex:1;height:46px;border-radius:var(--radius-pill);padding:0 20px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  color:var(--text-title);font-size:14px;transition:border-color var(--transition);
}
.footer-subscribe input:focus{outline:none;border-color:#FF8A00}
.footer-subscribe input::placeholder{color:var(--text-muted)}
.footer-subscribe button{
  height:46px;padding:0 26px;border-radius:var(--radius-pill);border:none;
  background:var(--gradient-main);color:#fff;font-weight:700;cursor:pointer;
  font-size:14px;transition:all var(--transition);box-shadow:0 4px 14px rgba(255,138,0,.3);
}
.footer-subscribe button:hover{box-shadow:0 0 24px rgba(255,138,0,.45);transform:translateY(-2px)}
.footer-subscribe button:active{transform:scale(.97)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.06);padding:22px 0;
  text-align:center;color:var(--text-muted);font-size:13px;
}
.footer-bottom p{margin:0}

/* 响应式 */
@media(min-width:1024px){
  .side-col{position:sticky;top:130px;align-self:flex-start}
}
@media(max-width:1023px){
  .intro-grid{grid-template-columns:1fr 1fr}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
  .category-banner{padding:64px 0 56px}
  .category-banner h1{font-size:40px}
}
@media(max-width:767px){
  .header-top{height:60px}
  .header-search{display:none}
  .header-cta{padding:9px 16px;font-size:13px}
  .header-cta i{display:none}
  .nav-tabs a{padding:6px 14px;font-size:13px}
  .category-banner{padding:52px 0 46px}
  .category-banner h1{font-size:34px}
  .category-banner .banner-desc{font-size:15px}
  .banner-actions .btn{flex:1;justify-content:center;padding:12px 18px}
  .category-main{padding:52px 0 30px}
  .section-head h2{font-size:24px}
  .intro-grid{grid-template-columns:1fr}
  .trouble-grid{grid-template-columns:1fr}
  .intro-card,.flow-card,.version-card,.faq-card{padding:26px 20px}
  .version-row{flex-direction:column;align-items:flex-start;gap:12px}
  .version-meta{gap:10px}
  .footer-main{grid-template-columns:1fr;gap:36px;padding-bottom:32px}
  .footer-subscribe{flex-direction:column}
  .footer-subscribe input{width:100%}
  .footer-subscribe button{width:100%}
  .cta-inner{padding:40px 24px}
  .cta-inner h2{font-size:25px}
  .cta-btns .btn{flex:1;justify-content:center;padding:12px 16px}
  .side-col{margin-top:8px}
  .flow-step{gap:16px}
  .flow-num{width:36px;height:36px;min-width:36px;font-size:14px}
  .flow-step::before{left:18px}
  .flow-media img{height:180px}
}
@media(max-width:520px){
  .logo{font-size:17px}
  .logo-icon{width:34px;height:34px;font-size:14px}
  .header-cta span{display:none}
  .header-cta i{display:inline-flex}
  .category-banner h1{font-size:29px}
  .cta-btns{flex-direction:column}
}

/* roulang page: article */
:root {
            --bg-primary: #0B0E14;
            --bg-secondary: #11161F;
            --bg-card: #151C2A;
            --gradient-primary: linear-gradient(135deg, #FF3D00 0%, #FF8A00 100%);
            --accent: #8B5CF6;
            --success: #22C55E;
            --star: #FFC93C;
            --text-heading: #F2F5FA;
            --text-body: #C0C8D6;
            --text-muted: #71809A;
            --border: rgba(255, 255, 255, .08);
            --radius-card: 20px;
            --radius-small: 14px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, .30);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, .45);
            --transition: all .25s ease-out;
            --font-stack: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", 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-primary);
            color: var(--text-body);
            line-height: 1.7;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(11, 14, 20, .88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-heading);
            letter-spacing: .5px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 17px;
            box-shadow: 0 4px 16px rgba(255, 80, 0, .35);
        }
        .logo span:last-child {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid transparent;
            border-radius: var(--radius-pill);
            padding: 0 16px;
            height: 38px;
            width: 220px;
            transition: var(--transition);
        }
        .header-search i {
            font-size: 13px;
            color: var(--text-muted);
        }
        .header-search input {
            background: transparent;
            border: none;
            color: var(--text-heading);
            font-size: 13px;
            width: 100%;
        }
        .header-search input::placeholder {
            color: var(--text-muted);
        }
        .header-search:focus-within {
            border-color: #FF8A00;
            box-shadow: 0 0 0 3px rgba(255, 138, 0, .15);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            padding: 10px 20px;
            border-radius: var(--radius-pill);
            box-shadow: 0 4px 14px rgba(255, 80, 0, .25);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .header-cta:hover {
            box-shadow: 0 0 24px rgba(255, 138, 0, .4);
            transform: translateY(-1px);
        }
        .header-cta:active {
            transform: scale(.97);
        }
        .header-nav {
            border-top: 1px solid var(--border);
        }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 8px;
            height: 48px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-tabs::-webkit-scrollbar {
            display: none;
        }
        .nav-tabs li {
            flex-shrink: 0;
        }
        .nav-tabs a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-body);
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            transition: var(--transition);
            font-weight: 500;
            white-space: nowrap;
        }
        .nav-tabs a:hover {
            background: rgba(255, 255, 255, .08);
            color: #fff;
        }
        .nav-tabs a.active {
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(255, 80, 0, .25);
        }
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border);
            margin-top: 60px;
            position: relative;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 70%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 138, 0, .6), transparent);
        }
        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.4fr;
            gap: 48px;
            padding: 64px 0 40px;
        }
        .footer-brand .logo {
            font-size: 18px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 14px;
            line-height: 1.6;
        }
        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 18px;
        }
        .footer-social .si {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            border: 1px solid var(--border);
            color: var(--text-muted);
            font-size: 15px;
            cursor: pointer;
            transition: var(--transition);
        }
        .footer-social .si:hover {
            background: rgba(255, 138, 0, .15);
            color: #FF8A00;
            border-color: rgba(255, 138, 0, .3);
        }
        .footer-links h4,
        .footer-news h4 {
            color: var(--text-heading);
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-links ul li {
            margin-bottom: 10px;
        }
        .footer-links ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-links ul li a:hover {
            color: #FF8A00;
            padding-left: 4px;
        }
        .footer-news p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .footer-subscribe {
            display: flex;
            border-radius: var(--radius-pill);
            overflow: hidden;
            background: rgba(255, 255, 255, .06);
            border: 1px solid var(--border);
            max-width: 340px;
            transition: var(--transition);
        }
        .footer-subscribe:focus-within {
            border-color: #FF8A00;
        }
        .footer-subscribe input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 12px 18px;
            color: var(--text-heading);
            font-size: 13px;
            min-width: 0;
        }
        .footer-subscribe input::placeholder {
            color: var(--text-muted);
        }
        .footer-subscribe button {
            background: var(--gradient-primary);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            padding: 12px 22px;
            cursor: pointer;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .footer-subscribe button:hover {
            box-shadow: 0 0 20px rgba(255, 138, 0, .35);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            text-align: center;
            font-size: 12px;
            color: var(--text-muted);
        }
        .article-main {
            padding: 40px 0 20px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: #FF8A00;
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, .2);
        }
        .breadcrumb .current {
            color: var(--text-body);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 300px;
        }
        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 40px;
            box-shadow: var(--shadow-card);
            max-width: 900px;
            margin: 0 auto;
        }
        .article-header {
            margin-bottom: 32px;
            padding-bottom: 28px;
            border-bottom: 1px solid var(--border);
        }
        .article-header h1 {
            font-size: 38px;
            line-height: 1.2;
            color: var(--text-heading);
            font-weight: 800;
            letter-spacing: .5px;
            margin-bottom: 18px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i {
            color: #FF8A00;
            font-size: 12px;
        }
        .article-cat-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(255, 138, 0, .12);
            color: #FF8A00;
            border: 1px solid rgba(255, 138, 0, .25);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
        }
        .article-content {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.85;
        }
        .article-content p {
            margin-bottom: 24px;
        }
        .article-content h2 {
            font-size: 24px;
            color: var(--text-heading);
            font-weight: 700;
            margin: 40px 0 16px;
            line-height: 1.3;
        }
        .article-content h3 {
            font-size: 20px;
            color: var(--text-heading);
            font-weight: 700;
            margin: 32px 0 14px;
            line-height: 1.3;
        }
        .article-content h4 {
            font-size: 17px;
            color: var(--text-heading);
            font-weight: 700;
            margin: 28px 0 12px;
        }
        .article-content blockquote {
            border-left: 4px solid #FF8A00;
            background: rgba(255, 138, 0, .06);
            padding: 18px 20px;
            border-radius: 0 14px 14px 0;
            margin: 24px 0;
            color: var(--text-heading);
            font-size: 15px;
        }
        .article-content pre {
            background: #0d1117;
            border: 1px solid var(--border);
            border-radius: var(--radius-small);
            padding: 18px;
            overflow-x: auto;
            margin: 24px 0;
            font-size: 13px;
            line-height: 1.6;
        }
        .article-content code {
            font-family: "SFMono-Regular", Consolas, monospace;
            background: rgba(255, 255, 255, .08);
            border-radius: 4px;
            padding: 2px 6px;
            font-size: 14px;
            color: #FFB86C;
        }
        .article-content pre code {
            background: transparent;
            padding: 0;
            color: #e6edf3;
        }
        .article-content img {
            border-radius: var(--radius-small);
            border: 1px solid var(--border);
            margin: 24px 0;
        }
        .article-content ul,
        .article-content ol {
            margin: 24px 0;
            padding-left: 24px;
        }
        .article-content ul {
            list-style: disc;
        }
        .article-content ol {
            list-style: decimal;
        }
        .article-content ul li,
        .article-content ol li {
            margin-bottom: 10px;
        }
        .article-content a {
            color: #FF8A00;
            border-bottom: 1px solid rgba(255, 138, 0, .3);
        }
        .article-content a:hover {
            border-bottom-color: #FF8A00;
        }
        .article-empty {
            text-align: center;
            padding: 80px 20px;
            max-width: 600px;
            margin: 0 auto;
        }
        .article-empty i {
            font-size: 48px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .article-empty h2 {
            color: var(--text-heading);
            font-size: 26px;
            margin-bottom: 12px;
        }
        .article-empty p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn:hover {
            transform: translateY(-1px);
        }
        .btn:active {
            transform: scale(.97);
        }
        .btn:focus {
            outline: 2px solid #FF8A00;
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--gradient-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(255, 80, 0, .25);
        }
        .btn-primary:hover {
            box-shadow: 0 0 24px rgba(255, 138, 0, .4);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .25);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, .06);
            border-color: rgba(255, 255, 255, .4);
        }
        .article-pager {
            display: flex;
            gap: 16px;
            max-width: 900px;
            margin: 32px auto 0;
            padding: 0 20px;
        }
        .pager-btn {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 22px;
            transition: var(--transition);
        }
        .pager-btn:hover {
            border-color: rgba(255, 138, 0, .4);
            box-shadow: 0 0 20px rgba(255, 138, 0, .1);
            transform: translateY(-2px);
        }
        .pager-label {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .pager-title {
            font-size: 14px;
            color: var(--text-heading);
            font-weight: 600;
            line-height: 1.4;
        }
        .related-section {
            padding: 50px 0 0;
        }
        .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
            padding: 0 20px;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-heading);
            position: relative;
            padding-left: 16px;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 22px;
            border-radius: 2px;
            background: var(--gradient-primary);
        }
        .section-more {
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .section-more:hover {
            color: #FF8A00;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 138, 0, .3);
        }
        .related-cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-secondary);
        }
        .related-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }
        .related-card:hover .related-cover img {
            transform: scale(1.05);
        }
        .related-info {
            padding: 18px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            align-self: flex-start;
            font-size: 11px;
            font-weight: 600;
            color: #FF8A00;
            background: rgba(255, 138, 0, .1);
            border: 1px solid rgba(255, 138, 0, .2);
            padding: 3px 10px;
            border-radius: var(--radius-pill);
        }
        .related-info h3 {
            font-size: 15px;
            color: var(--text-heading);
            line-height: 1.5;
            font-weight: 700;
        }
        .related-info p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }
        .cta-section {
            padding: 50px 0 20px;
        }
        .cta-inner {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            max-width: 1000px;
            margin: 0 auto;
        }
        .cta-inner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 0%, rgba(255, 138, 0, .2), transparent 60%);
            pointer-events: none;
        }
        .cta-inner h2 {
            font-size: 30px;
            color: var(--text-heading);
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
        }
        .cta-inner p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 28px;
            position: relative;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
        }
        .to-top {
            position: fixed;
            right: 24px;
            bottom: 24px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 16px rgba(255, 80, 0, .35);
            cursor: pointer;
            z-index: 99;
            transition: var(--transition);
            border: none;
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px);
        }
        .to-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .to-top:hover {
            box-shadow: 0 0 24px rgba(255, 138, 0, .5);
        }
        .to-top:active {
            transform: scale(.92);
        }
        @media (max-width: 1023px) {
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-news {
                grid-column: span 2;
            }
            .related-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 767px) {
            .header-top {
                height: 56px;
            }
            .header-search {
                display: none;
            }
            .logo {
                font-size: 17px;
            }
            .header-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
            .nav-tabs a {
                font-size: 13px;
                padding: 7px 14px;
            }
            .article-main {
                padding: 20px 0 0;
            }
            .article-card {
                padding: 24px 18px;
                border-radius: var(--radius-small);
            }
            .article-header h1 {
                font-size: 26px;
            }
            .article-meta {
                gap: 10px;
                flex-wrap: wrap;
            }
            .article-meta span {
                font-size: 12px;
            }
            .article-content {
                font-size: 15px;
            }
            .article-content h2 {
                font-size: 20px;
            }
            .article-content h3 {
                font-size: 18px;
            }
            .article-pager {
                flex-direction: column;
                padding: 0 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .section-head {
                padding: 0 16px;
            }
            .cta-inner {
                padding: 40px 20px;
                border-radius: var(--radius-small);
            }
            .cta-inner h2 {
                font-size: 22px;
            }
            .cta-actions .btn {
                width: 100%;
            }
            .footer-main {
                grid-template-columns: 1fr;
                padding: 40px 0 24px;
            }
            .footer-news {
                grid-column: auto;
            }
            .to-top {
                right: 16px;
                bottom: 16px;
                width: 40px;
                height: 40px;
            }
            .breadcrumb .current {
                max-width: 180px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .header-right {
                gap: 8px;
            }
            .header-cta {
                padding: 7px 14px;
                font-size: 12px;
            }
            .nav-tabs a {
                font-size: 12px;
                padding: 7px 12px;
            }
            .footer-bottom {
                font-size: 11px;
                padding: 16px 10px;
            }
        }

/* roulang page: category2 */
:root {
  --bg-primary: #0B0E14;
  --bg-secondary: #11161F;
  --bg-card: #151C2A;
  --bg-pill: rgba(255,255,255,.05);
  --grad-primary: linear-gradient(135deg, #FF3D00 0%, #FF8A00 100%);
  --accent-purple: #8B5CF6;
  --success: #22C55E;
  --star: #FFC93C;
  --text-title: #F2F5FA;
  --text-body: #C0C8D6;
  --text-muted: #71809A;
  --border-soft: rgba(255,255,255,.08);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(0,0,0,.30);
  --shadow-hover: 0 16px 40px rgba(0,0,0,.45);
  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  --transition: .25s ease-out;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button, input {
  font-family: inherit;
  font-size: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 14, 20, .88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
}

.site-header .container {
  padding: 0 20px;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--text-title);
  letter-spacing: .5px;
  white-space: nowrap;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--grad-primary);
  color: #fff;
  font-size: 16px;
  box-shadow: 0 0 16px rgba(255, 138, 0, .35);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.08);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0 16px;
  height: 38px;
  width: 220px;
  transition: var(--transition);
}

.header-search:focus-within {
  border-color: #FF8A00;
  box-shadow: 0 0 0 3px rgba(255, 138, 0, .15);
}

.header-search i {
  color: var(--text-muted);
  font-size: 13px;
}

.header-search input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-title);
  font-size: 13px;
  width: 100%;
}

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

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--grad-primary);
  color: #fff;
  border-radius: 999px;
  padding: 10px 24px;
  font-weight: 700;
  font-size: 14px;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(255, 138, 0, .25);
}

.header-cta:hover {
  box-shadow: 0 0 24px rgba(255, 138, 0, .45);
  transform: translateY(-2px);
}

.header-cta:active {
  transform: scale(.97);
}

.header-nav {
  border-top: 1px solid rgba(255,255,255,.04);
}

.nav-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0;
  margin: 0;
}

.nav-tabs li {
  flex-shrink: 0;
}

.nav-tabs a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-body);
  transition: var(--transition);
  min-height: 40px;
}

.nav-tabs a i {
  font-size: 13px;
  opacity: .8;
}

.nav-tabs a:hover {
  background: rgba(255,255,255,.08);
  color: var(--text-title);
}

.nav-tabs a.active {
  background: var(--grad-primary);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(255, 138, 0, .3);
}

/* ========== Category Banner ========== */
.category-banner {
  position: relative;
  background-image: linear-gradient(to bottom, rgba(11,14,20,.82), rgba(11,14,20,.92)), url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  padding: 90px 0 75px;
  text-align: center;
  border-bottom: 1px solid var(--border-soft);
}

.category-banner .banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.06);
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 6px 18px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.category-banner .banner-badge i {
  color: #FF8A00;
}

.category-banner h1 {
  font-size: 48px;
  font-weight: 800;
  color: var(--text-title);
  line-height: 1.15;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.category-banner h1 span {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.category-banner p {
  max-width: 640px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-body);
}

/* ========== Category Main ========== */
.category-main {
  padding: 60px 0;
  background: var(--bg-primary);
}

.left-col {
  padding-right: 20px;
}

.info-card {
  display: flex;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 18px;
  margin-bottom: 20px;
  transition: var(--transition);
}

.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 138, 0, .45);
}

.info-card .thumb {
  width: 112px;
  height: 84px;
  border-radius: 12px;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--bg-secondary);
}

.info-card .card-body {
  flex: 1;
  min-width: 0;
}

.info-card .card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.info-card .tag {
  display: inline-block;
  font-size: 10px;
  padding: 3px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 138, 0, .4);
  color: #FF8A00;
  letter-spacing: .5px;
  white-space: nowrap;
}

.info-card .date {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}

.info-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 6px;
  line-height: 1.4;
  transition: var(--transition);
}

.info-card:hover h3 {
  color: #FF8A00;
}

.info-card p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ========== Sidebar ========== */
.right-col {
  padding-left: 20px;
}

.sidebar-box {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-box h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 12px;
}

.sidebar-box h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 36px;
  height: 3px;
  border-radius: 2px;
  background: var(--grad-primary);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-cloud .tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border-soft);
  font-size: 13px;
  color: var(--text-body);
  transition: var(--transition);
  min-height: 32px;
}

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

.quick-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.quick-links a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border-radius: 10px;
  font-size: 14px;
  color: var(--text-body);
  transition: var(--transition);
  min-height: 44px;
}

.quick-links a i {
  width: 22px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  transition: var(--transition);
}

.quick-links a:hover {
  background: rgba(255,255,255,.06);
  color: var(--text-title);
  padding-left: 16px;
}

.quick-links a:hover i {
  color: #FF8A00;
}

.rec-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.rec-list .rec-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  border-radius: 10px;
  background: rgba(255,255,255,.03);
  border: 1px solid transparent;
  transition: var(--transition);
}

.rec-list .rec-item:hover {
  background: rgba(255,255,255,.05);
  border-color: rgba(255, 138, 0, .3);
  transform: translateX(4px);
}

.rec-list .rec-thumb {
  width: 52px;
  height: 52px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
}

.rec-list .rec-info {
  flex: 1;
  min-width: 0;
}

.rec-list .rec-info span {
  display: block;
  font-size: 13px;
  color: var(--text-title);
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rec-list .rec-info small {
  font-size: 12px;
  color: var(--text-muted);
}

/* ========== Flow Section ========== */
.flow-section {
  padding: 80px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}

.section-head {
  text-align: center;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 10px;
}

.section-head p {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
}

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

.flow-step {
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 32px 20px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.flow-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 138, 0, .4);
}

.flow-step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--grad-primary);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 18px;
  box-shadow: 0 6px 16px rgba(255, 138, 0, .3);
}

.flow-step h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 10px;
}

.flow-step p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-body);
  margin: 0;
}

/* ========== FAQ Section ========== */
.faq-section {
  padding: 80px 0;
  background: var(--bg-primary);
}

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

.accordion {
  background: transparent;
  border: none;
  margin: 0;
}

.accordion-item {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.accordion-item:hover {
  border-color: rgba(255, 138, 0, .35);
}

.accordion-item.is-active {
  border-color: rgba(255, 138, 0, .5);
  box-shadow: 0 4px 16px rgba(0,0,0,.3);
}

.accordion-title {
  display: block;
  position: relative;
  background: transparent;
  border: none;
  color: var(--text-title);
  font-size: 16px;
  font-weight: 600;
  padding: 18px 50px 18px 22px;
  line-height: 1.5;
  min-height: 56px;
}

.accordion-title:hover {
  background: rgba(255,255,255,.03);
}

.accordion-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: var(--transition);
}

.accordion-item.is-active .accordion-title::before {
  background: var(--grad-primary);
}

.accordion-title::after {
  content: '+';
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  font-weight: 300;
  color: var(--text-muted);
  transition: var(--transition);
  line-height: 1;
}

.accordion-item.is-active .accordion-title::after {
  transform: translateY(-50%) rotate(45deg);
  color: #FF8A00;
}

.accordion-content {
  background: transparent;
  border: none;
  color: var(--text-body);
  font-size: 14px;
  line-height: 1.8;
  padding: 0 22px 18px 22px;
}

.accordion-content p {
  margin: 0;
  color: var(--text-body);
}

/* ========== CTA Section ========== */
.category-cta {
  padding: 80px 0 90px;
  background: var(--bg-primary);
}

.cta-box {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 24px;
  padding: 60px 40px;
  text-align: center;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 480px;
  height: 200px;
  background: radial-gradient(ellipse, rgba(255, 138, 0, .22) 0%, transparent 70%);
  pointer-events: none;
}

.cta-box h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-title);
  margin-bottom: 12px;
  position: relative;
}

.cta-box p {
  font-size: 16px;
  color: var(--text-body);
  margin-bottom: 28px;
  position: relative;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--grad-primary);
  color: #fff;
  border-radius: 999px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(255, 138, 0, .3);
  min-height: 48px;
}

.btn-primary:hover {
  box-shadow: 0 0 28px rgba(255, 138, 0, .5);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: scale(.96);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-title);
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 999px;
  padding: 13px 30px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  min-height: 48px;
}

.btn-outline:hover {
  background: rgba(255,255,255,.06);
  border-color: #FF8A00;
  color: #FF8A00;
}

.btn-outline:active {
  transform: scale(.96);
}

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-soft);
  padding: 60px 0 0;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 70%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,138,0,.4), transparent);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
}

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

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  max-width: 260px;
}

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

.footer-social .si {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border-soft);
  color: var(--text-muted);
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition);
}

.footer-social .si:hover {
  background: var(--grad-primary);
  color: #fff;
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(255,138,0,.3);
}

.footer-links h4,
.footer-news h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 10px;
}

.footer-links h4::after,
.footer-news h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  border-radius: 1px;
  background: var(--grad-primary);
}

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

.footer-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
}

.footer-links a:hover {
  color: #FF8A00;
  padding-left: 4px;
}

.footer-news p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}

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

.footer-subscribe input {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 12px 20px;
  color: var(--text-title);
  font-size: 14px;
  outline: none;
  min-height: 44px;
  transition: var(--transition);
}

.footer-subscribe input:focus {
  border-color: #FF8A00;
  box-shadow: 0 0 0 3px rgba(255,138,0,.15);
}

.footer-subscribe button {
  background: var(--grad-primary);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 12px 26px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  min-height: 44px;
}

.footer-subscribe button:hover {
  box-shadow: 0 0 20px rgba(255,138,0,.4);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid var(--border-soft);
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
}

/* ========== Focus ========== */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid #FF8A00;
  outline-offset: 2px;
}

/* ========== Responsive ========== */
@media (max-width: 1023px) {
  .category-banner h1 {
    font-size: 40px;
  }

  .flow-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .left-col {
    padding-right: 0;
  }

  .right-col {
    padding-left: 0;
    margin-top: 30px;
  }

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

@media (max-width: 767px) {
  .header-top {
    height: auto;
    flex-wrap: wrap;
    padding: 12px 0;
    gap: 10px;
  }

  .header-search {
    width: 100%;
    order: 3;
  }

  .header-right {
    flex: 1;
    justify-content: flex-end;
  }

  .header-cta {
    padding: 8px 18px;
    font-size: 13px;
  }

  .header-nav {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .header-nav::-webkit-scrollbar {
    display: none;
  }

  .nav-tabs {
    flex-wrap: nowrap;
    padding-bottom: 6px;
  }

  .nav-tabs a {
    padding: 8px 16px;
    font-size: 13px;
    white-space: nowrap;
  }

  .category-banner {
    padding: 60px 0 50px;
  }

  .category-banner h1 {
    font-size: 34px;
  }

  .category-banner p {
    font-size: 14px;
    padding: 0 20px;
  }

  .category-main {
    padding: 40px 0;
  }

  .info-card {
    flex-direction: column;
    gap: 14px;
    padding: 16px;
  }

  .info-card .thumb {
    width: 100%;
    height: 160px;
  }

  .section-head h2 {
    font-size: 24px;
  }

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

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

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

  .accordion-title {
    font-size: 15px;
    padding: 16px 48px 16px 18px;
    min-height: 52px;
  }

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

  .cta-box {
    padding: 40px 20px;
  }

  .cta-box h2 {
    font-size: 24px;
  }

  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }

  .btn-primary,
  .btn-outline {
    width: 100%;
    justify-content: center;
  }

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

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

  .footer-subscribe button {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .logo {
    font-size: 18px;
  }

  .header-cta {
    padding: 8px 16px;
    font-size: 13px;
  }

  .header-search input {
    font-size: 12px;
  }

  .category-banner h1 {
    font-size: 28px;
  }

  .flow-step {
    padding: 24px 16px;
  }

  .cta-box {
    padding: 32px 16px;
  }
}

/* roulang page: category3 */
:root {
  --bg-primary: #0B0E14;
  --bg-secondary: #11161F;
  --bg-card: #151C2A;
  --gradient-main: linear-gradient(135deg, #FF3D00 0%, #FF8A00 100%);
  --accent-purple: #8B5CF6;
  --color-green: #22C55E;
  --color-star: #FFC93C;
  --text-title: #F2F5FA;
  --text-body: #C0C8D6;
  --text-muted: #71809A;
  --border-light: rgba(255,255,255,.08);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(0,0,0,.30);
  --shadow-hover: 0 16px 40px rgba(0,0,0,.45);
  --transition: all .25s ease-out;
  --font-stack: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font-stack); background: var(--bg-primary); color: var(--text-body); line-height: 1.7; font-size: 15px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul { list-style: none; padding: 0; margin: 0; }
button, input, select, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid #FF3D00; outline-offset: 2px; border-radius: 4px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(11,14,20,.88); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--border-light); }
.header-top { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 20px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: var(--text-title); line-height: 1.2; flex-shrink: 0; }
.logo-icon { width: 36px; height: 36px; border-radius: 10px; background: var(--gradient-main); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; box-shadow: 0 4px 14px rgba(255,61,0,.35); transition: transform .25s ease; }
.logo:hover .logo-icon { transform: rotate(-8deg) scale(1.05); }
.header-right { display: flex; align-items: center; gap: 14px; }
.header-search { display: flex; align-items: center; background: rgba(255,255,255,.08); border-radius: 999px; padding: 0 16px; width: 220px; height: 38px; border: 1px solid transparent; transition: var(--transition); }
.header-search i { color: var(--text-muted); margin-right: 8px; font-size: 14px; }
.header-search input { background: transparent; border: none; outline: none; color: var(--text-title); width: 100%; font-size: 14px; }
.header-search input::placeholder { color: var(--text-muted); }
.header-search:focus-within { border-color: rgba(255,61,0,.6); box-shadow: 0 0 0 3px rgba(255,61,0,.12); }
.header-cta { background: var(--gradient-main); color: #fff; border-radius: 999px; padding: 10px 22px; font-weight: 700; font-size: 14px; display: flex; align-items: center; gap: 8px; box-shadow: 0 4px 16px rgba(255,61,0,.3); transition: var(--transition); border: none; cursor: pointer; }
.header-cta:hover { box-shadow: 0 0 24px rgba(255,138,0,.45); transform: translateY(-1px); }
.header-cta:active { transform: translateY(1px) scale(.98); }
.header-nav { border-top: 1px solid var(--border-light); }
.nav-tabs { display: flex; align-items: center; gap: 8px; height: 48px; overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none; }
.nav-tabs::-webkit-scrollbar { display: none; }
.nav-tabs a { display: flex; align-items: center; gap: 7px; padding: 8px 18px; border-radius: 999px; color: var(--text-body); font-size: 14px; font-weight: 600; white-space: nowrap; transition: var(--transition); }
.nav-tabs a:hover { background: rgba(255,255,255,.08); color: var(--text-title); }
.nav-tabs a.active { background: var(--gradient-main); color: #fff; box-shadow: 0 4px 14px rgba(255,61,0,.3); }

/* Category Hero */
.category-hero { position: relative; padding: 100px 0 120px; background-image: url('/assets/images/backpic/back-2.webp'); background-size: cover; background-position: center; }
.category-hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,14,20,.90) 0%, rgba(11,14,20,.76) 60%, rgba(11,14,20,.92) 100%); }
.category-hero .container { position: relative; z-index: 2; max-width: 960px; text-align: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.1); border: 1px solid var(--border-light); color: #fff; padding: 8px 18px; border-radius: 999px; font-size: 13px; font-weight: 600; margin-bottom: 24px; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.hero-badge i { color: #FF8A00; }
.category-hero h1 { font-size: 48px; font-weight: 800; color: var(--text-title); margin: 0 0 16px; letter-spacing: 1px; }
.category-hero .hero-sub { font-size: 17px; color: #D8DFEB; max-width: 640px; margin: 0 auto 36px; line-height: 1.8; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-primary, .btn-secondary { display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; border-radius: 999px; font-weight: 700; font-size: 15px; transition: var(--transition); cursor: pointer; border: none; }
.btn-primary { background: var(--gradient-main); color: #fff; box-shadow: 0 8px 24px rgba(255,61,0,.35); }
.btn-primary:hover { box-shadow: 0 0 24px rgba(255,138,0,.55); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(1px) scale(.98); }
.btn-secondary { border: 1px solid rgba(255,255,255,.35); color: #fff; background: transparent; }
.btn-secondary:hover { background: rgba(255,255,255,.1); border-color: #fff; transform: translateY(-2px); }
.btn-secondary:active { transform: translateY(1px) scale(.98); }

/* Stats strip */
.stat-strip { position: relative; z-index: 3; }
.stat-strip-inner { display: flex; justify-content: center; gap: 32px; flex-wrap: wrap; margin-top: -52px; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 26px 36px; min-width: 190px; text-align: center; box-shadow: var(--shadow-card); transition: var(--transition); }
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: rgba(255,138,0,.35); }
.stat-num { font-size: 32px; font-weight: 800; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; font-variant-numeric: tabular-nums; line-height: 1.1; }
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 8px; }

/* Section common */
.section-block { padding: 100px 0; }
.section-title { font-size: 32px; font-weight: 800; color: var(--text-title); margin: 0 0 12px; text-align: center; }
.section-sub { text-align: center; font-size: 15px; color: var(--text-muted); max-width: 660px; margin: 0 auto 48px; line-height: 1.7; }

/* Feature */
.feature-section { padding: 90px 0 100px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 32px 24px; transition: var(--transition); height: 100%; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(255,61,0,.45); }
.feature-icon { width: 48px; height: 48px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 20px; margin-bottom: 20px; }
.feature-icon.t1 { background: rgba(255,61,0,.15); color: #FF3D00; }
.feature-icon.t2 { background: rgba(138,92,246,.15); color: #8B5CF6; }
.feature-icon.t3 { background: rgba(34,197,94,.15); color: #22C55E; }
.feature-icon.t4 { background: rgba(255,201,60,.15); color: #FFC93C; }
.feature-card h3 { font-size: 18px; font-weight: 700; color: var(--text-title); margin: 0 0 10px; line-height: 1.35; }
.feature-card p { font-size: 14px; color: var(--text-muted); margin: 0; line-height: 1.7; }

/* Resource Section */
.resource-section { padding: 0 0 100px; }
.resource-wrap { display: grid; grid-template-columns: 1.8fr 1fr; gap: 32px; align-items: start; }
.resource-list { display: flex; flex-direction: column; gap: 16px; }
.resource-card { display: flex; gap: 16px; background: var(--bg-card); border: 1px solid var(--border-light); border-radius: 16px; padding: 16px; transition: var(--transition); align-items: center; }
.resource-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: rgba(255,61,0,.4); }
.resource-thumb { width: 112px; height: 84px; border-radius: 12px; object-fit: cover; flex-shrink: 0; background: rgba(255,255,255,.04); }
.resource-info { min-width: 0; flex: 1; }
.resource-info h3 { font-size: 16px; font-weight: 700; color: var(--text-title); margin: 0 0 6px; line-height: 1.4; transition: color .25s; }
.resource-card:hover .resource-info h3 { color: #FF8A00; }
.resource-info p { font-size: 13px; color: var(--text-muted); margin: 0 0 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.6; }
.resource-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--text-muted); flex-wrap: wrap; }
.tag-pill { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: 999px; padding: 2px 10px; font-size: 10px; color: var(--text-body); white-space: nowrap; }

/* Sidebar */
.sidebar-panel { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 26px; margin-bottom: 24px; }
.sidebar-panel:last-child { margin-bottom: 0; }
.sidebar-panel h3 { font-size: 17px; font-weight: 700; color: var(--text-title); margin: 0 0 18px; padding-bottom: 14px; border-bottom: 1px solid var(--border-light); display: flex; align-items: center; gap: 8px; }
.sidebar-panel h3 i { color: #FF8A00; font-size: 16px; }
.tags-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tags-cloud a { background: rgba(255,255,255,.06); border: 1px solid var(--border-light); color: var(--text-body); padding: 6px 14px; border-radius: 999px; font-size: 13px; transition: var(--transition); }
.tags-cloud a:hover { background: rgba(255,61,0,.15); color: #fff; border-color: rgba(255,61,0,.4); }
.sidebar-list li { padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.05); }
.sidebar-list li:last-child { border-bottom: none; }
.sidebar-list a { display: flex; align-items: center; gap: 10px; color: var(--text-body); font-size: 14px; font-weight: 500; }
.sidebar-list a i { color: var(--text-muted); font-size: 14px; width: 18px; text-align: center; transition: color .25s; }
.sidebar-list a:hover { color: var(--text-title); padding-left: 4px; }
.sidebar-list a:hover i { color: #FF8A00; }
.sidebar-rec { display: flex; flex-direction: column; gap: 16px; }
.sidebar-rec-item { display: flex; align-items: center; gap: 12px; }
.sidebar-rec-item img { width: 72px; height: 56px; border-radius: 10px; object-fit: cover; flex-shrink: 0; background: rgba(255,255,255,.04); }
.sidebar-rec-item .rec-info h4 { font-size: 13px; font-weight: 600; color: var(--text-title); margin: 0 0 4px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sidebar-rec-item .rec-info span { font-size: 11px; color: var(--text-muted); }
.sidebar-rec-item:hover .rec-info h4 { color: #FF8A00; }

/* Scenario */
.scenario-section { background: var(--bg-secondary); }
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scenario-card { background: var(--bg-card); border-radius: var(--radius-lg); padding: 36px; border: 1px solid var(--border-light); transition: var(--transition); height: 100%; }
.scenario-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(255,138,0,.45); }
.scenario-num { font-size: 13px; font-weight: 700; color: #FF8A00; letter-spacing: 1px; margin-bottom: 14px; }
.scenario-card h3 { font-size: 18px; color: var(--text-title); margin: 0 0 10px; font-weight: 700; }
.scenario-card p { font-size: 14px; color: var(--text-muted); margin: 0; line-height: 1.7; }

/* Process */
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step { text-align: center; padding: 0 12px; }
.step-circle { width: 64px; height: 64px; border-radius: 50%; background: var(--bg-card); border: 2px solid rgba(255,138,0,.5); display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; font-size: 20px; font-weight: 800; color: #FF8A00; transition: var(--transition); font-variant-numeric: tabular-nums; }
.process-step:hover .step-circle { background: var(--gradient-main); border-color: transparent; color: #fff; box-shadow: 0 8px 20px rgba(255,61,0,.35); }
.process-step h3 { font-size: 17px; color: var(--text-title); margin: 0 0 8px; font-weight: 700; }
.process-step p { font-size: 14px; color: var(--text-muted); margin: 0; line-height: 1.6; }

/* FAQ */
.faq-section { background: var(--bg-secondary); }
.faq-accordion { max-width: 760px; margin: 0 auto; }
.accordion-item { background: var(--bg-card); border-radius: 14px; border: 1px solid var(--border-light); margin-bottom: 16px; overflow: hidden; transition: var(--transition); }
.accordion-item.is-active { border-color: rgba(255,61,0,.3); box-shadow: 0 8px 30px rgba(0,0,0,.25); }
.accordion-title { display: flex; justify-content: space-between; align-items: center; padding: 18px 22px; font-size: 16px; font-weight: 600; color: var(--text-title) !important; position: relative; transition: var(--transition); background: transparent !important; border: none !important; line-height: 1.5; }
.accordion-title::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--gradient-main); opacity: 0; transition: var(--transition); border-radius: 0 3px 3px 0; }
.accordion-item.is-active .accordion-title::before { opacity: 1; }
.faq-icon { transition: transform .3s ease; color: var(--text-muted); font-size: 14px; flex-shrink: 0; margin-left: 16px; }
.accordion-item.is-active .faq-icon { transform: rotate(45deg); color: #FF8A00; }
.accordion-content { background: transparent !important; border: none !important; color: var(--text-body) !important; padding: 0 22px 22px !important; font-size: 14px; line-height: 1.8; }
.accordion-content p { margin: 0; }

/* CTA */
.cta-section { padding: 100px 0; }
.cta-box { position: relative; background: var(--bg-card); border: 1px solid var(--border-light); border-radius: 24px; padding: 64px 48px; text-align: center; overflow: hidden; }
.cta-box::before { content: ''; position: absolute; top: -60%; left: 50%; transform: translateX(-50%); width: 480px; height: 480px; background: radial-gradient(circle, rgba(255,61,0,.2) 0%, transparent 70%); pointer-events: none; }
.cta-box h2 { font-size: 32px; color: var(--text-title); margin: 0 0 14px; font-weight: 800; position: relative; z-index: 1; }
.cta-box p { font-size: 15px; color: var(--text-muted); margin: 0 0 32px; position: relative; z-index: 1; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

/* Footer */
.site-footer { background: #080B10; border-top: 1px solid var(--border-light); padding: 60px 0 30px; margin-top: 0; }
.footer-main { display: grid; grid-template-columns: 1.4fr 1fr 1.4fr; gap: 48px; margin-bottom: 40px; }
.footer-brand .logo { margin-bottom: 8px; }
.footer-brand p { font-size: 14px; color: var(--text-muted); margin: 16px 0 20px; line-height: 1.7; }
.footer-social { display: flex; gap: 12px; }
.si { width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,.06); display: flex; align-items: center; justify-content: center; color: var(--text-muted); font-size: 16px; border: 1px solid var(--border-light); transition: var(--transition); cursor: pointer; }
.si:hover { background: rgba(255,61,0,.2); color: #fff; border-color: rgba(255,61,0,.4); transform: translateY(-2px); }
.footer-links h4, .footer-news h4 { font-size: 16px; color: var(--text-title); font-weight: 700; margin: 0 0 18px; }
.footer-links ul li { margin-bottom: 10px; }
.footer-links a { color: var(--text-muted); font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-links a i { font-size: 12px; color: var(--text-muted); }
.footer-news p { font-size: 13px; color: var(--text-muted); margin: 0 0 14px; line-height: 1.7; }
.footer-subscribe { display: flex; align-items: center; background: var(--bg-card); border: 1px solid var(--border-light); border-radius: 999px; padding: 5px; transition: var(--transition); }
.footer-subscribe:focus-within { border-color: rgba(255,61,0,.5); }
.footer-subscribe input { background: transparent; border: none; outline: none; padding: 10px 16px; color: var(--text-title); font-size: 14px; flex: 1; min-width: 0; }
.footer-subscribe input::placeholder { color: var(--text-muted); }
.footer-subscribe button { background: var(--gradient-main); border: none; color: #fff; border-radius: 999px; padding: 10px 24px; font-weight: 700; cursor: pointer; font-size: 14px; transition: var(--transition); flex-shrink: 0; }
.footer-subscribe button:hover { box-shadow: 0 0 18px rgba(255,138,0,.45); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.05); padding-top: 24px; text-align: center; font-size: 13px; color: var(--text-muted); }

/* Responsive */
@media (max-width: 1023px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .footer-main { grid-template-columns: 1fr; gap: 36px; }
  .resource-wrap { grid-template-columns: 1fr; }
  .sidebar-panel { margin-bottom: 20px; }
}
@media (max-width: 767px) {
  .header-top { height: 56px; gap: 10px; }
  .logo { font-size: 18px; gap: 8px; }
  .logo-icon { width: 32px; height: 32px; font-size: 14px; border-radius: 8px; }
  .header-search { width: 100%; max-width: 150px; padding: 0 12px; height: 36px; }
  .header-search input { font-size: 13px; }
  .header-cta { padding: 8px 14px; font-size: 13px; gap: 6px; }
  .category-hero { padding: 80px 0 100px; }
  .category-hero h1 { font-size: 34px; }
  .category-hero .hero-sub { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
  .stat-strip-inner { gap: 12px; margin-top: -40px; }
  .stat-card { padding: 18px 16px; min-width: 130px; }
  .stat-num { font-size: 24px; }
  .stat-label { font-size: 12px; }
  .section-block { padding: 60px 0; }
  .section-title { font-size: 24px; }
  .section-sub { font-size: 14px; margin-bottom: 32px; }
  .feature-section { padding: 60px 0; }
  .feature-grid { grid-template-columns: 1fr; gap: 16px; }
  .feature-card { padding: 24px; }
  .resource-section { padding-bottom: 60px; }
  .resource-wrap { gap: 24px; }
  .resource-card { flex-direction: column; align-items: flex-start; }
  .resource-thumb { width: 100%; height: 180px; }
  .scenario-grid { grid-template-columns: 1fr; gap: 16px; }
  .scenario-card { padding: 24px; }
  .process-steps { grid-template-columns: 1fr; row-gap: 32px; }
  .faq-accordion { margin: 0 0; }
  .cta-section { padding: 60px 0; }
  .cta-box { padding: 40px 20px; border-radius: 20px; }
  .cta-box h2 { font-size: 24px; }
  .cta-actions { flex-direction: column; }
  .cta-actions .btn-primary, .cta-actions .btn-secondary { width: 100%; }
  .footer-main { gap: 32px; }
  .footer-links ul { display: flex; flex-wrap: wrap; gap: 8px 20px; }
  .footer-links ul li { margin-bottom: 0; }
  .footer-subscribe { flex-direction: column; background: transparent; border: none; gap: 10px; }
  .footer-subscribe input { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: 999px; width: 100%; padding: 12px 18px; }
  .footer-subscribe button { width: 100%; padding: 12px 24px; }
}
@media (max-width: 520px) {
  .header-search { display: none; }
  .stat-strip-inner { gap: 8px; }
  .stat-card { min-width: 100px; padding: 14px 12px; }
  .stat-num { font-size: 20px; }
  .stat-label { font-size: 11px; }
  .nav-tabs a { padding: 7px 14px; font-size: 13px; }
}