/* roulang page: index */
:root {
  --bg-dark: #10141C;
  --bg-light: #F6F7F9;
  --surface: #FFFFFF;
  --brand: #00E5C9;
  --vigor: #7C5CFF;
  --accent: #FFB224;
  --text-1: #171A21;
  --text-2: #5B6472;
  --text-3: #8A93A2;
  --line: #E3E8EF;
  --danger: #E5484D;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 2px 10px rgba(16,20,28,.06);
  --shadow-hover: 0 10px 28px rgba(124,92,255,.14);
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Inter", "DIN Alternate", "Roboto", monospace;
  --space-section: 96px;
  --space-section-md: 64px;
  --space-section-sm: 40px;
  --container: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-cn); background: var(--bg-light); color: var(--text-1); line-height: 1.75; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 15px; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--space-section) 0; }
.section-sm { padding: var(--space-section-sm) 0; }

/* Header Nav */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(16,20,28,.35); backdrop-filter: blur(14px) saturate(180%); -webkit-backdrop-filter: blur(14px) saturate(180%); border-bottom: 1px solid rgba(255,255,255,.08); transition: background .3s, box-shadow .3s; }
.site-header.scrolled { background: rgba(16,20,28,.96); box-shadow: 0 6px 20px rgba(0,0,0,.25); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 700; color: #fff; letter-spacing: 1px; }
.logo-mark { width: 32px; height: 32px; flex-shrink: 0; }
.logo-mark svg { width: 100%; height: 100%; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { color: rgba(255,255,255,.82); font-size: 15px; font-weight: 500; position: relative; padding: 20px 2px; transition: color .2s; }
.nav-links a:hover { color: var(--brand); }
.nav-links a.active { color: #fff; }
.nav-links a.active::after { content: ''; position: absolute; bottom: 12px; left: 0; right: 0; height: 2px; background: var(--brand); border-radius: 2px; }
.header-actions { display: flex; align-items: center; gap: 16px; }
.search-btn { width: 38px; height: 38px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; transition: background .2s; }
.search-btn:hover { background: rgba(255,255,255,.1); }
.header-cta { display: inline-flex; align-items: center; gap: 6px; background: var(--brand); color: var(--bg-dark) !important; font-weight: 600; font-size: 14px; padding: 10px 22px; border-radius: 8px; transition: background .2s, transform .15s; }
.header-cta:hover { background: #33ead3; transform: scale(1.02); }
.header-cta:active { transform: scale(.98); }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 8px; align-items: center; justify-content: center; color: #fff; }
.nav-toggle .bar { width: 20px; height: 2px; background: #fff; position: relative; transition: background .2s; }
.nav-toggle .bar::before, .nav-toggle .bar::after { content: ''; position: absolute; left: 0; width: 20px; height: 2px; background: #fff; transition: transform .3s; }
.nav-toggle .bar::before { top: -6px; }
.nav-toggle .bar::after { top: 6px; }
.nav-toggle.open .bar { background: transparent; }
.nav-toggle.open .bar::before { transform: rotate(45deg); top: 0; }
.nav-toggle.open .bar::after { transform: rotate(-45deg); top: 0; }

/* Mobile Drawer */
.drawer { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(16,20,28,.55); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); z-index: 999; display: none; }
.drawer-panel { position: absolute; top: 0; right: 0; bottom: 0; width: 86%; max-width: 360px; background: rgba(16,20,28,.97); padding: 100px 32px 40px; overflow-y: auto; }
.drawer-panel a { display: block; color: rgba(255,255,255,.9); font-size: 28px; font-weight: 500; line-height: 60px; border-bottom: 1px solid rgba(255,255,255,.06); transition: color .2s; }
.drawer-panel a:hover { color: var(--brand); }
.drawer-panel a.active { color: var(--brand); }
.drawer-panel .drawer-cta { margin-top: 32px; background: var(--brand); color: var(--bg-dark); font-weight: 600; font-size: 16px; text-align: center; border-radius: 8px; padding: 14px; }
.drawer.show { display: block; }

/* Hero */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; background-color: var(--bg-dark); background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; padding-top: 72px; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: rgba(16,20,28,.6); }
.hero::after { content: ''; position: absolute; top: -120px; left: -80px; width: 480px; height: 480px; background: rgba(124,92,255,.3); filter: blur(140px); border-radius: 50%; pointer-events: none; }
.hero-glow { position: absolute; bottom: -100px; right: -60px; width: 420px; height: 420px; background: rgba(0,229,201,.2); filter: blur(120px); border-radius: 50%; pointer-events: none; }
.hero-content { position: relative; z-index: 2; max-width: 760px; padding: 80px 0; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); color: rgba(255,255,255,.85); font-size: 13px; padding: 6px 16px; border-radius: 999px; margin-bottom: 28px; }
.hero-badge .dot { width: 6px; height: 6px; background: var(--brand); border-radius: 50%; }
.hero h1 { font-size: clamp(32px, 4.5vw, 52px); font-weight: 700; line-height: 1.25; color: #fff; margin-bottom: 20px; letter-spacing: 1px; }
.hero h1 .grad { background: linear-gradient(90deg, var(--brand), var(--vigor)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-sub { font-size: 17px; color: rgba(255,255,255,.78); line-height: 1.8; margin-bottom: 36px; max-width: 600px; }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600; font-size: 15px; padding: 14px 32px; border-radius: 8px; transition: all .2s; }
.btn:active { transform: scale(.98); }
.btn:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }
.btn-primary { background: var(--brand); color: var(--bg-dark); }
.btn-primary:hover { background: #33ead3; }
.btn-outline { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.35); }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); }
.hero-trust { display: flex; gap: 28px; margin-top: 52px; flex-wrap: wrap; }
.trust-item { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,.55); font-size: 13px; }
.trust-item svg { color: var(--brand); flex-shrink: 0; }

/* Section Head */
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 44px; }
.sec-tag { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 2px; color: var(--vigor); margin-bottom: 10px; }
.sec-title { font-size: clamp(24px, 3vw, 32px); font-weight: 600; line-height: 1.25; color: var(--text-1); }
.sec-link { color: var(--text-2); font-size: 14px; display: inline-flex; align-items: center; gap: 6px; transition: color .2s; white-space: nowrap; }
.sec-link:hover { color: var(--brand); }
.sec-link svg { transition: transform .2s; }
.sec-link:hover svg { transform: translateX(4px); }

/* Solution Cards */
.solution-section { background: var(--bg-light); }
.solution-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 24px; align-items: stretch; }
.solution-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 36px; box-shadow: var(--shadow); transition: transform .25s, border-color .25s, box-shadow .25s; position: relative; }
.solution-card:hover { transform: translateY(-2px); border-color: rgba(124,92,255,.35); box-shadow: var(--shadow-hover); }
.solution-card.large { display: flex; flex-direction: column; }
.sol-icon { width: 56px; height: 56px; border-radius: 12px; background: rgba(0,229,201,.1); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; transition: background .2s; }
.solution-card:hover .sol-icon { background: rgba(124,92,255,.2); }
.sol-icon svg { color: var(--brand); }
.solution-card h3 { font-size: 22px; font-weight: 600; color: var(--text-1); margin-bottom: 10px; }
.solution-card p { font-size: 15px; color: var(--text-2); line-height: 1.75; }
.sol-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--text-1); margin-top: 16px; transition: color .2s; }
.sol-link:hover { color: var(--brand); }
.sol-link svg { transition: transform .2s; }
.sol-link:hover svg { transform: translateX(4px); }
.small-stack { display: flex; flex-direction: column; gap: 24px; }
.solution-card.small { flex: 1; }
.sol-feature-list { list-style: none; margin-top: 16px; }
.sol-feature-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text-2); padding: 6px 0; }
.sol-feature-list li svg { color: var(--brand); flex-shrink: 0; margin-top: 4px; }

/* Stats */
.stats-section { background: var(--bg-dark); position: relative; overflow: hidden; }
.stats-section::before { content: ''; position: absolute; inset: 0; background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px); background-size: 24px 24px; opacity: .5; }
.stats-section::after { content: ''; position: absolute; top: -80px; right: 10%; width: 300px; height: 300px; background: rgba(124,92,255,.18); filter: blur(100px); border-radius: 50%; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; position: relative; z-index: 1; }
.stat-item { text-align: center; }
.stat-num { font-family: var(--font-num); font-size: clamp(40px, 4vw, 64px); font-weight: 700; color: var(--brand); line-height: 1.2; }
.stat-num .suffix { color: var(--accent); }
.stat-label { font-size: 14px; color: rgba(255,255,255,.6); margin-top: 8px; }

/* Form Section */
.form-section { background: var(--bg-light); }
.form-wrap { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 48px; box-shadow: var(--shadow); }
.form-head h3 { font-size: 24px; font-weight: 600; margin-bottom: 8px; }
.form-head p { color: var(--text-2); font-size: 15px; margin-bottom: 28px; }
.lead-form { display: grid; grid-template-columns: 1fr 1fr 1fr auto; gap: 16px; align-items: start; }
.form-group { display: flex; flex-direction: column; }
.form-group label { font-size: 13px; font-weight: 500; color: var(--text-2); margin-bottom: 6px; }
.form-group input, .form-group select { height: 46px; border: 1px solid var(--line); border-radius: 8px; padding: 0 14px; font-size: 15px; background: #fff; transition: border-color .2s, box-shadow .2s; }
.form-group select { appearance: auto; }
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(0,229,201,.18); }
.form-group input.error, .form-group select.error { border-color: var(--danger); }
.err-msg { font-size: 13px; color: var(--danger); margin-top: 4px; display: none; }
.form-group.has-error .err-msg { display: block; }
.form-submit { height: 46px; background: var(--brand); color: var(--bg-dark); font-weight: 600; padding: 0 32px; border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; transition: background .2s, transform .15s; }
.form-submit:hover { background: #33ead3; }
.form-submit:active { transform: scale(.98); }
.form-submit:disabled { background: #ccc; color: #888; cursor: not-allowed; }
.privacy-note { margin-top: 24px; display: flex; align-items: center; gap: 10px; background: rgba(246,247,249,.8); border-radius: 8px; padding: 12px 16px; font-size: 13px; color: var(--text-3); }
.privacy-note svg { color: var(--brand); flex-shrink: 0; }

/* Info List */
.info-section { background: var(--bg-light); }
.info-list { display: flex; flex-direction: column; }
.info-item { display: flex; align-items: center; gap: 24px; padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); transition: transform .2s, border-color .2s, box-shadow .2s; }
.info-item:hover { border-color: rgba(124,92,255,.3); box-shadow: var(--shadow-hover); }
.info-item + .info-item { margin-top: 16px; }
.info-thumb { width: 160px; height: 100px; border-radius: 8px; object-fit: cover; flex-shrink: 0; background: linear-gradient(135deg, rgba(124,92,255,.3), rgba(0,229,201,.3)); }
.info-content { flex: 1; min-width: 0; }
.info-title { font-size: 18px; font-weight: 600; color: var(--text-1); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 6px; transition: color .2s; }
.info-item:hover .info-title { color: var(--brand); }
.info-desc { font-size: 14px; color: var(--text-2); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 8px; }
.info-meta { display: flex; align-items: center; gap: 12px; }
.info-tag { display: inline-flex; align-items: center; background: rgba(124,92,255,.1); color: var(--vigor); font-size: 12px; padding: 3px 12px; border-radius: 999px; font-weight: 500; }
.info-date { font-size: 13px; color: var(--text-3); }
.info-empty { border: 2px dashed var(--line); border-radius: var(--radius); padding: 60px 24px; text-align: center; }
.info-empty-icon { width: 48px; height: 48px; margin: 0 auto 16px; background: rgba(139,147,162,.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--text-3); }
.info-empty p { color: var(--text-3); font-size: 15px; }
.info-list-stack { display: flex; flex-direction: column; gap: 16px; }

/* FAQ */
.faq-section { background: var(--bg-light); }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.faq-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.faq-q { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; cursor: pointer; font-size: 16px; font-weight: 600; transition: background .2s; border-left: 3px solid var(--brand); }
.faq-q:hover { background: rgba(0,229,201,.04); }
.faq-icon { width: 24px; height: 24px; border-radius: 50%; background: rgba(124,92,255,.1); display: flex; align-items: center; justify-content: center; color: var(--vigor); font-size: 18px; flex-shrink: 0; transition: transform .3s; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 24px 20px; font-size: 14px; color: var(--text-2); line-height: 1.8; }

/* CTA Banner */
.cta-section { background: var(--bg-light); }
.cta-panel { background: var(--bg-dark); border-radius: var(--radius-lg); padding: 72px 48px; text-align: center; position: relative; overflow: hidden; }
.cta-panel::before { content: ''; position: absolute; inset: 0; background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px); background-size: 28px 28px; opacity: .4; }
.cta-panel::after { content: ''; position: absolute; top: -80px; left: 50%; transform: translateX(-50%); width: 400px; height: 200px; background: rgba(124,92,255,.2); filter: blur(90px); border-radius: 50%; }
.cta-panel h3 { font-size: clamp(24px, 3vw, 32px); font-weight: 600; color: #fff; margin-bottom: 12px; position: relative; z-index: 1; }
.cta-panel p { color: rgba(255,255,255,.6); font-size: 15px; margin-bottom: 28px; position: relative; z-index: 1; }
.cta-panel .btn { position: relative; z-index: 1; }

/* Footer */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,.6); padding-top: 64px; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,.06); }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 260px; }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,.08); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,.7); transition: background .2s, color .2s; }
.footer-social a:hover { background: var(--brand); color: var(--bg-dark); }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 14px; padding: 5px 0; transition: color .2s; }
.footer-col a:hover { color: var(--brand); }
.footer-contact p { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; padding: 5px 0; }
.footer-contact svg { color: var(--brand); flex-shrink: 0; margin-top: 4px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; font-size: 13px; flex-wrap: wrap; gap: 12px; }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a:hover { color: var(--brand); }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(16,20,28,.55); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); z-index: 2000; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal-overlay.show { display: flex; }
.modal-box { background: rgba(255,255,255,.96); width: 560px; max-width: 92vw; border-radius: var(--radius-lg); padding: 32px; position: relative; animation: modalIn .3s ease; }
@keyframes modalIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.modal-close { position: absolute; top: 16px; right: 16px; width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--text-2); font-size: 22px; transition: background .2s; }
.modal-close:hover { background: rgba(0,0,0,.06); }
.modal-box h3 { font-size: 22px; font-weight: 600; margin-bottom: 8px; }
.modal-box > p { color: var(--text-2); font-size: 14px; margin-bottom: 20px; }
.modal-form .form-group { margin-bottom: 16px; }
.modal-form input, .modal-form select { width: 100%; }
.modal-submit { width: 100%; height: 46px; background: var(--brand); color: var(--bg-dark); font-weight: 600; border-radius: 8px; transition: background .2s; }
.modal-submit:hover { background: #33ead3; }
.modal-privacy { margin-top: 16px; font-size: 13px; color: var(--text-3); text-align: center; display: flex; align-items: center; justify-content: center; gap: 6px; }

/* Responsive */
@media (max-width: 1200px) {
  .container { padding: 0 20px; }
  .solution-grid { grid-template-columns: 1fr 1fr; }
  .solution-card.large { grid-column: span 2; }
}
@media (max-width: 992px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .header-cta { display: none; }
  .solution-grid { grid-template-columns: 1fr; }
  .solution-card.large { grid-column: span 1; }
  .lead-form { grid-template-columns: 1fr 1fr; }
  .form-submit { width: 100%; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 20px; }
}
@media (max-width: 768px) {
  :root { --space-section: 64px; }
  .hero { min-height: auto; padding-top: 120px; padding-bottom: 60px; }
  .hero-content { padding: 40px 0; }
  .hero h1 { font-size: 32px; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 12px; margin-bottom: 28px; }
  .info-item { flex-direction: column; align-items: flex-start; padding: 20px; }
  .info-thumb { width: 100%; height: 160px; }
  .lead-form { grid-template-columns: 1fr; }
  .form-wrap { padding: 28px 20px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-panel { padding: 48px 24px; }
  .solution-card { padding: 24px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-trust { gap: 16px; }
  .hero-sub { font-size: 15px; }
  .hero-ctas .btn { width: 100%; }
  .stats-grid { gap: 24px 12px; }
  .stat-num { font-size: 36px; }
  .solution-card { padding: 20px; }
  .modal-box { padding: 24px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* roulang page: category1 */
:root{
  --bg-dark:#10141C;
  --bg-light:#F6F7F9;
  --surface:#FFFFFF;
  --brand:#00E5C9;
  --vigor:#7C5CFF;
  --accent:#FFB224;
  --text-1:#171A21;
  --text-2:#5B6472;
  --text-3:#8A93A2;
  --line:#E3E8EF;
  --danger:#E5484D;
  --radius:12px;
  --radius-lg:16px;
  --shadow-card:0 2px 10px rgba(16,20,28,.06);
  --shadow-hover:0 10px 28px rgba(124,92,255,.14);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter","DIN Alternate","Roboto",monospace;
  --container:1200px;
  --space-desktop:96px;
  --space-tablet:64px;
  --space-mobile:40px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-cn);font-size:16px;line-height:1.75;color:var(--text-1);background:var(--bg-light);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,select,textarea{font-family:inherit;font-size:15px}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
::selection{background:rgba(0,229,201,.25)}

.section{padding:var(--space-desktop) 0}
.section-head{max-width:680px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--vigor);letter-spacing:.04em;margin-bottom:12px;padding:4px 14px;background:rgba(124,92,255,.08);border:1px solid rgba(124,92,255,.18);border-radius:999px}
.section-tag::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand)}
.section-title{font-size:32px;font-weight:600;line-height:1.25;color:var(--text-1);margin-bottom:14px}
.section-desc{font-size:15px;color:var(--text-2);line-height:1.75}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 28px;border-radius:8px;font-size:15px;font-weight:600;transition:all .22s ease;white-space:nowrap}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--brand);color:var(--bg-dark)}
.btn-primary:hover{background:#19EED3;box-shadow:0 6px 20px rgba(0,229,201,.25)}
.btn-outline{border:1px solid rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:rgba(0,229,201,.06)}
.btn-light{background:#fff;color:var(--bg-dark)}
.btn-light:hover{background:#E8EAEF;box-shadow:var(--shadow-hover)}

/* Header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(16,20,28,.35);backdrop-filter:blur(14px) saturate(180%);-webkit-backdrop-filter:blur(14px) saturate(180%);border-bottom:1px solid rgba(255,255,255,.08);transition:background .3s ease,box-shadow .3s ease}
.site-header.scrolled{background:rgba(16,20,28,.96);box-shadow:0 6px 20px rgba(0,0,0,.25)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#fff;letter-spacing:.02em}
.logo-mark{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:rgba(124,92,255,.15);border-radius:10px;border:1px solid rgba(124,92,255,.3);flex-shrink:0}
.logo-mark svg{width:22px;height:22px}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{position:relative;font-size:15px;font-weight:500;color:rgba(255,255,255,.82);padding:8px 2px;transition:color .2s ease}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:center;transition:transform .25s ease}
.nav-links a:hover{color:var(--brand)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px}
.search-btn{width:38px;height:38px;display:flex;align-items:center;justify-content:center;border-radius:8px;color:rgba(255,255,255,.8);transition:background .2s ease,color .2s ease}
.search-btn:hover{background:rgba(255,255,255,.1);color:var(--brand)}
.header-cta{height:40px;padding:0 22px;border-radius:8px;background:var(--brand);color:var(--bg-dark);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:background .2s ease,box-shadow .2s ease}
.header-cta:hover{background:#19EED3;box-shadow:0 4px 16px rgba(0,229,201,.3)}
.nav-toggle{display:none;width:40px;height:40px;flex-direction:column;align-items:center;justify-content:center;gap:5px;border-radius:8px}
.nav-toggle .bar{width:20px;height:2px;border-radius:2px;background:#fff;transition:all .3s ease}
.nav-toggle.open .bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open .bar:nth-child(2){opacity:0}
.nav-toggle.open .bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Search overlay */
.search-overlay{position:fixed;top:72px;left:0;right:0;z-index:99;background:rgba(16,20,28,.96);backdrop-filter:blur(14px);padding:18px 24px;display:none;border-bottom:1px solid rgba(255,255,255,.08)}
.search-overlay.show{display:block}
.search-overlay form{max-width:600px;margin:0 auto;display:flex;gap:10px}
.search-overlay input{flex:1;height:44px;padding:0 16px;border-radius:8px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);color:#fff;outline:none;transition:border-color .2s ease}
.search-overlay input::placeholder{color:rgba(255,255,255,.4)}
.search-overlay input:focus{border-color:var(--brand)}

/* Mobile drawer */
.mobile-drawer{position:fixed;inset:0;z-index:98;background:rgba(16,20,28,.55);backdrop-filter:blur(6px);opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}
.mobile-drawer.open{opacity:1;visibility:visible}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:min(88vw,360px);background:rgba(16,20,28,.97);backdrop-filter:blur(24px) saturate(180%);padding:88px 28px 32px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;transform:translateX(100%);transition:transform .35s ease}
.mobile-drawer.open .drawer-panel{transform:translateX(0)}
.drawer-panel a{font-size:18px;font-weight:500;color:rgba(255,255,255,.85);padding:14px 12px;border-radius:10px;transition:background .2s ease,color .2s ease;line-height:1.6}
.drawer-panel a:hover{background:rgba(124,92,255,.12);color:var(--brand)}
.drawer-panel a.active{color:var(--brand);background:rgba(0,229,201,.08)}
.drawer-panel .drawer-cta{margin-top:20px;display:block;text-align:center;background:var(--brand);color:var(--bg-dark);font-weight:700;border-radius:10px;height:48px;line-height:48px;padding:0}
.drawer-panel .drawer-cta:hover{background:#19EED3;color:var(--bg-dark)}

/* Hero */
.hero{position:relative;background:var(--bg-dark);background-image:linear-gradient(135deg,rgba(16,20,28,.72),rgba(16,20,28,.86)),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;padding:180px 0 110px;color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;top:-120px;left:-80px;width:420px;height:420px;background:radial-gradient(circle,rgba(0,229,201,.16),transparent 70%);pointer-events:none}
.hero::after{content:"";position:absolute;bottom:-140px;right:-60px;width:480px;height:480px;background:radial-gradient(circle,rgba(124,92,255,.2),transparent 70%);pointer-events:none}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.75);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);padding:6px 16px;border-radius:999px;margin-bottom:20px}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px rgba(0,229,201,.6)}
.hero h1{font-size:44px;font-weight:700;line-height:1.25;margin-bottom:18px;letter-spacing:.01em}
.hero h1 span{color:var(--brand)}
.hero-sub{font-size:16px;line-height:1.85;color:rgba(255,255,255,.78);max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px}
.hero-trust{display:flex;gap:28px;flex-wrap:wrap;padding-top:22px;border-top:1px solid rgba(255,255,255,.1)}
.trust-item{display:flex;flex-direction:column;gap:2px}
.trust-item b{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--accent)}
.trust-item span{font-size:13px;color:rgba(255,255,255,.55)}
.hero-visual{position:relative;z-index:2}
.hero-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);padding:28px;backdrop-filter:blur(8px)}
.hero-card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.hero-card-top b{font-size:15px;color:#fff}
.hero-card-top .live{font-size:12px;color:var(--brand);display:flex;align-items:center;gap:6px}
.hero-card-top .live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.hero-card-list{display:flex;flex-direction:column;gap:10px}
.hero-card-list li{display:flex;align-items:center;gap:12px;font-size:14px;color:rgba(255,255,255,.8);padding:10px 14px;background:rgba(255,255,255,.04);border-radius:8px}
.hero-card-list li svg{width:16px;height:16px;flex-shrink:0}
.hero-card-list li span:first-of-type{color:var(--brand);font-weight:600}
.hero-card-list li em{font-style:normal;margin-left:auto;font-size:13px;color:rgba(255,255,255,.5)}

/* Card components */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-card);padding:28px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(124,92,255,.3)}
.card-icon{width:56px;height:56px;border-radius:12px;background:rgba(0,229,201,.1);display:flex;align-items:center;justify-content:center;margin-bottom:18px;transition:background .25s ease}
.card-icon svg{width:26px;height:26px;stroke:var(--brand)}
.card:hover .card-icon{background:rgba(124,92,255,.2)}
.card h3{font-size:20px;font-weight:600;margin-bottom:10px;line-height:1.4}
.card p{font-size:14px;color:var(--text-2);line-height:1.75}
.card-link{display:inline-flex;align-items:center;gap:4px;margin-top:14px;font-size:14px;font-weight:600;color:var(--vigor);transition:gap .2s ease,color .2s ease}
.card-link:hover{gap:8px;color:var(--brand)}
.card-media{border-radius:var(--radius);overflow:hidden;margin:-28px -28px 20px}
.card-media img{width:100%;height:160px;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.04)}

/* Scenario cards */
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scenario-card{border-radius:var(--radius);overflow:hidden;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease;display:flex;flex-direction:column}
.scenario-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.scenario-cover{position:relative;height:150px;overflow:hidden}
.scenario-cover img{width:100%;height:100%;object-fit:cover}
.scenario-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(16,20,28,.35))}
.scenario-num{position:absolute;top:14px;left:14px;z-index:2;font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--bg-dark);background:var(--brand);padding:4px 12px;border-radius:999px}
.scenario-body{padding:22px;flex:1;display:flex;flex-direction:column}
.scenario-body h3{font-size:18px;font-weight:600;margin-bottom:8px}
.scenario-body p{font-size:14px;color:var(--text-2);line-height:1.75;flex:1}
.scenario-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{display:inline-block;font-size:12px;font-weight:500;color:var(--text-2);background:var(--bg-light);border:1px solid var(--line);padding:3px 12px;border-radius:999px}

/* Process */
.process-section{background:var(--bg-dark);position:relative;overflow:hidden}
.process-section::before{content:"";position:absolute;top:-100px;right:-80px;width:400px;height:400px;background:radial-gradient(circle,rgba(124,92,255,.18),transparent 70%)}
.process-section::after{content:"";position:absolute;bottom:-60px;left:0;width:100%;height:2px;background-image:linear-gradient(90deg,transparent,rgba(0,229,201,.3),transparent)}
.process-section .section-title{color:#fff}
.process-section .section-desc{color:rgba(255,255,255,.6)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;z-index:2}
.process-step{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.09);border-radius:var(--radius);padding:28px 24px;transition:transform .25s ease,border-color .25s ease}
.process-step:hover{transform:translateY(-3px);border-color:rgba(0,229,201,.4)}
.process-step .step-num{font-family:var(--font-num);font-size:34px;font-weight:700;background:linear-gradient(135deg,var(--brand),var(--vigor));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1;display:block;margin-bottom:14px}
.process-step h3{font-size:17px;color:#fff;font-weight:600;margin-bottom:8px}
.process-step p{font-size:13px;color:rgba(255,255,255,.6);line-height:1.7}

/* Category nav section */
.cat-nav-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.cat-nav-card{position:relative;display:flex;align-items:center;gap:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;overflow:hidden}
.cat-nav-card::before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(180deg,var(--brand),var(--vigor));opacity:0;transition:opacity .25s ease}
.cat-nav-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(124,92,255,.25)}
.cat-nav-card:hover::before{opacity:1}
.cat-nav-icon{width:56px;height:56px;border-radius:12px;background:rgba(124,92,255,.1);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.cat-nav-icon svg{width:26px;height:26px;stroke:var(--vigor)}
.cat-nav-card h3{font-size:19px;font-weight:600;margin-bottom:4px}
.cat-nav-card p{font-size:14px;color:var(--text-2);line-height:1.65}
.cat-nav-arrow{margin-left:auto;color:var(--text-3);display:flex;align-items:center;transition:transform .2s ease,color .2s ease}
.cat-nav-card:hover .cat-nav-arrow{transform:translateX(4px);color:var(--brand)}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-card)}
.faq-item.active{border-color:rgba(124,92,255,.25)}
.faq-q{width:100%;display:flex;align-items:center;gap:16px;padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);background:none;transition:background .2s ease}
.faq-q:hover{background:rgba(0,229,201,.04)}
.faq-q .faq-bar{width:3px;height:20px;border-radius:2px;background:var(--brand);flex-shrink:0}
.faq-q .faq-icon{width:26px;height:26px;border-radius:50%;background:rgba(0,229,201,.1);display:flex;align-items:center;justify-content:center;margin-left:auto;flex-shrink:0;color:var(--brand);transition:transform .3s ease,background .2s ease}
.faq-item.active .faq-icon{transform:rotate(45deg);background:rgba(124,92,255,.15);color:var(--vigor)}
.faq-icon svg{width:14px;height:14px}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 24px 22px 58px;font-size:14px;color:var(--text-2);line-height:1.85}

/* CTA */
.cta-section{padding:0 0 var(--space-desktop)}
.cta-box{position:relative;background:var(--bg-dark);border-radius:var(--radius-lg);padding:64px 48px;text-align:center;overflow:hidden}
.cta-box::before{content:"";position:absolute;top:-80px;left:-40px;width:260px;height:260px;background:radial-gradient(circle,rgba(0,229,201,.2),transparent 70%)}
.cta-box::after{content:"";position:absolute;bottom:-100px;right:-30px;width:300px;height:300px;background:radial-gradient(circle,rgba(124,92,255,.24),transparent 70%)}
.cta-box>*{position:relative;z-index:2}
.cta-box h2{color:#fff;font-size:28px;font-weight:700;margin-bottom:14px}
.cta-box p{color:rgba(255,255,255,.65);font-size:15px;max-width:520px;margin:0 auto 30px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* Footer */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.6);border-top:1px solid rgba(255,255,255,.06);padding:64px 0 0;font-size:14px}
.footer-inner{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:40px}
.footer-brand .logo{font-size:20px;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.5);max-width:300px;margin-bottom:20px}
.footer-social{display:flex;gap:10px}
.footer-social a{width:36px;height:36px;border-radius:8px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.6);transition:background .2s ease,color .2s ease,border-color .2s ease}
.footer-social a:hover{background:rgba(0,229,201,.1);color:var(--brand);border-color:rgba(0,229,201,.3)}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-col a{display:block;color:rgba(255,255,255,.55);margin-bottom:10px;transition:color .2s ease;line-height:1.6}
.footer-col a:hover{color:var(--brand)}
.footer-contact p{display:flex;align-items:center;gap:8px;color:rgba(255,255,255,.5);margin-bottom:10px}
.footer-contact svg{color:var(--brand);flex-shrink:0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.4)}
.footer-bottom-links{display:flex;gap:20px}
.footer-bottom-links a{color:rgba(255,255,255,.4);transition:color .2s ease}
.footer-bottom-links a:hover{color:var(--brand)}

/* Modal */
.modal-overlay{position:fixed;inset:0;z-index:200;background:rgba(16,20,28,.55);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}
.modal-overlay.open{opacity:1;visibility:visible}
.modal{width:100%;max-width:560px;background:rgba(255,255,255,.96);border-radius:var(--radius-lg);padding:32px;position:relative;transform:translateY(20px);transition:transform .35s ease;box-shadow:0 24px 60px rgba(16,20,28,.2)}
.modal-overlay.open .modal{transform:translateY(0)}
.modal-close{position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:50%;background:var(--bg-light);display:flex;align-items:center;justify-content:center;color:var(--text-2);transition:background .2s ease,color .2s ease;z-index:2}
.modal-close:hover{background:#EEF0F3;color:var(--text-1)}
.modal h3{font-size:22px;font-weight:700;margin-bottom:6px}
.modal>p{font-size:14px;color:var(--text-2);margin-bottom:24px}
.modal-form{display:flex;flex-direction:column;gap:16px}
.form-group{display:flex;flex-direction:column;gap:6px}
.form-group label{font-size:14px;font-weight:600;color:var(--text-1)}
.form-group input,.form-group select{height:46px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:#fff;outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.form-group input:focus,.form-group select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(0,229,201,.18)}
.form-group input.error{border-color:var(--danger);box-shadow:0 0 0 4px rgba(229,72,77,.12)}
.form-error{font-size:13px;color:var(--danger);min-height:18px}
.modal-submit{height:46px;border-radius:12px;background:var(--brand);color:var(--bg-dark);font-weight:700;font-size:15px;transition:background .2s ease,opacity .2s ease}
.modal-submit:hover{background:#19EED3}
.modal-submit:disabled{opacity:.5;cursor:not-allowed}
.modal-privacy{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);background:var(--bg-light);border-radius:8px;padding:12px 14px;margin-top:4px}
.modal-privacy svg{width:16px;height:16px;flex-shrink:0}
.modal-success{text-align:center;padding:40px 20px;display:none}
.modal-success.show{display:block}
.modal-success .success-icon{width:64px;height:64px;border-radius:50%;background:rgba(0,229,201,.12);display:flex;align-items:center;justify-content:center;margin:0 auto 20px}
.modal-success h4{font-size:20px;font-weight:700;margin-bottom:8px}
.modal-success p{font-size:14px;color:var(--text-2);margin-bottom:24px}

/* Utility + states */
.fade-up{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}
::focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* Responsive */
@media (max-width:1200px){
  .container{padding:0 20px}
  .hero h1{font-size:38px}
}
@media (max-width:992px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero{padding:150px 0 80px}
  .hero-visual{max-width:520px}
  .scenario-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .footer-inner{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  .section{padding:var(--space-tablet) 0}
  .nav-links,.header-cta{display:none}
  .nav-toggle{display:flex}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .hero-trust{justify-content:flex-start;gap:20px}
  .card-grid{grid-template-columns:1fr}
  .scenario-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr 1fr}
  .cat-nav-grid{grid-template-columns:1fr}
  .section-title{font-size:26px}
  .footer-inner{grid-template-columns:1fr;gap:28px}
  .cta-box{padding:40px 24px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero{padding:130px 0 60px}
  .hero h1{font-size:26px}
  .hero-trust{flex-wrap:wrap}
  .process-grid{grid-template-columns:1fr}
  .section{padding:var(--space-mobile) 0}
  .section-head{margin-bottom:32px}
  .modal{padding:24px}
  .header-inner{height:64px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root {
    --bg-dark: #10141C;
    --bg-light: #F6F7F9;
    --surface: #FFFFFF;
    --brand: #00E5C9;
    --vigor: #7C5CFF;
    --accent: #FFB224;
    --text-1: #171A21;
    --text-2: #5B6472;
    --text-3: #8A93A2;
    --line: #E3E8EF;
    --danger: #E5484D;
    --radius-card: 12px;
    --radius-btn: 8px;
    --radius-pill: 999px;
    --shadow-card: 0 2px 10px rgba(16,20,28,.06);
    --shadow-hover: 0 10px 28px rgba(124,92,255,.14);
    --font-cn: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    --font-num: "Inter","DIN Alternate","Roboto",monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.75;
    color:var(--text-1);
    background:var(--bg-light);
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,select,textarea{font-family:inherit;font-size:14px}
ul,ol{list-style-position:inside}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 28px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;transition:all .25s ease;white-space:nowrap;
    border:none;cursor:pointer;
}
.btn-primary{background:var(--brand);color:#10141C}
.btn-primary:hover{background:#33EAD2;transform:translateY(-1px)}
.btn-primary:active{transform:scale(.98)}
.btn-outline{border:1px solid rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-outline:hover{border-color:var(--brand);color:var(--brand)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.tag{
    display:inline-flex;align-items:center;padding:4px 14px;
    border-radius:var(--radius-pill);background:rgba(124,92,255,.12);
    color:var(--vigor);font-size:13px;font-weight:500;
}
.site-header{
    position:fixed;top:0;left:0;right:0;z-index:1000;
    background:rgba(16,20,28,.35);
    backdrop-filter:blur(14px) saturate(180%);
    -webkit-backdrop-filter:blur(14px) saturate(180%);
    border-bottom:1px solid rgba(255,255,255,.08);
    transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled,.inner-page .site-header{
    background:rgba(16,20,28,.96);
    box-shadow:0 6px 20px rgba(0,0,0,.25);
}
.header-inner{
    display:flex;align-items:center;justify-content:space-between;
    height:72px;gap:24px;
}
.logo{
    display:inline-flex;align-items:center;gap:10px;
    font-size:22px;font-weight:700;color:#fff;letter-spacing:.5px;
}
.logo-mark{
    width:36px;height:36px;display:inline-flex;align-items:center;
    justify-content:center;background:rgba(0,229,201,.1);border-radius:10px;
}
.logo-mark svg{width:26px;height:26px}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-links a{
    position:relative;display:inline-flex;align-items:center;
    padding:8px 16px;color:rgba(255,255,255,.72);font-size:15px;
    font-weight:500;border-radius:8px;transition:color .25s ease;
}
.nav-links a:hover{color:var(--brand)}
.nav-links a.active{color:#fff}
.nav-links a.active::after{
    content:'';position:absolute;left:16px;right:16px;bottom:2px;
    height:2px;background:var(--brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px}
.search-btn{
    width:40px;height:40px;display:inline-flex;align-items:center;
    justify-content:center;border-radius:50%;color:rgba(255,255,255,.8);
    transition:background .2s ease,color .2s ease;
}
.search-btn:hover{background:rgba(255,255,255,.1);color:var(--brand)}
.header-cta{
    display:inline-flex;align-items:center;height:40px;padding:0 20px;
    background:var(--brand);color:#10141C;border-radius:8px;
    font-size:14px;font-weight:600;transition:all .25s ease;
}
.header-cta:hover{background:#33EAD2;transform:translateY(-1px)}
.nav-toggle{
    display:none;flex-direction:column;justify-content:center;gap:5px;
    width:40px;height:40px;padding:8px;border-radius:8px;
    background:rgba(255,255,255,.08);
}
.nav-toggle .bar{height:2px;background:#fff;border-radius:2px;transition:all .3s ease}
.nav-toggle.open .bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open .bar:nth-child(2){opacity:0}
.nav-toggle.open .bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.article-hero{
    position:relative;background-color:var(--bg-dark);
    background-image:url('/assets/images/backpic/back-1.png');
    background-size:cover;background-position:center;
    padding:140px 0 56px;
}
.article-hero::before{
    content:'';position:absolute;inset:0;
    background:linear-gradient(rgba(16,20,28,.82),rgba(16,20,28,.92));
    z-index:1;
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb-wrap{margin-bottom:24px}
.breadcrumb{
    display:flex;align-items:center;flex-wrap:wrap;gap:6px;
    font-size:14px;color:rgba(255,255,255,.55);
}
.breadcrumb a{color:rgba(255,255,255,.55);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.3);margin:0 2px}
.breadcrumb .current{color:rgba(255,255,255,.8);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
    font-size:38px;font-weight:700;line-height:1.25;color:#fff;
    max-width:860px;margin-bottom:16px;
}
.article-meta{
    display:flex;align-items:center;flex-wrap:wrap;gap:16px;
    font-size:14px;color:rgba(255,255,255,.6);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta svg{width:15px;height:15px;opacity:.7}
.article-cat-pill{
    display:inline-flex;align-items:center;padding:4px 14px;
    background:rgba(0,229,201,.15);border:1px solid rgba(0,229,201,.3);
    color:var(--brand);border-radius:var(--radius-pill);font-size:13px;font-weight:500;
}
.article-section{padding:56px 0 72px;background:var(--bg-light)}
.article-wrap{max-width:760px;margin:0 auto}
.article-body{
    background:var(--surface);border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);padding:48px 56px;
}
.article-content{font-size:16px;line-height:1.75;color:var(--text-2)}
.article-content h2{
    font-size:26px;font-weight:600;line-height:1.3;color:var(--text-1);
    margin:40px 0 16px;padding-bottom:10px;border-bottom:1px solid var(--line);
}
.article-content h3{
    font-size:21px;font-weight:600;line-height:1.35;color:var(--text-1);
    margin:32px 0 14px;
}
.article-content p{font-size:16px;line-height:1.75;color:var(--text-2);margin-bottom:20px}
.article-content blockquote{
    border-left:3px solid var(--brand);background:rgba(0,229,201,.06);
    padding:16px 20px;border-radius:0 8px 8px 0;margin:24px 0;
    color:var(--text-2);font-style:italic;
}
.article-content blockquote p{margin-bottom:0;color:inherit}
.article-content img{border-radius:12px;max-width:100%;height:auto;margin:24px 0}
.article-content ul,.article-content ol{padding-left:10px;margin:16px 0 24px;color:var(--text-2)}
.article-content li{margin-bottom:8px}
.article-content li strong{color:var(--text-1)}
.article-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;font-weight:500}
.article-content a:hover{color:var(--vigor)}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
.article-content table th,.article-content table td{padding:10px 14px;border:1px solid var(--line);text-align:left}
.article-content table th{background:var(--bg-light);font-weight:600;color:var(--text-1)}
.article-empty{
    text-align:center;padding:80px 24px;background:var(--surface);
    border-radius:var(--radius-card);box-shadow:var(--shadow-card);
}
.article-empty .empty-icon{
    width:64px;height:64px;margin:0 auto 20px;display:flex;
    align-items:center;justify-content:center;border-radius:50%;
    background:var(--bg-light);color:var(--text-3);
}
.article-empty p{font-size:18px;color:var(--text-2);margin-bottom:24px}
.related-section{
    padding:72px 0;background:var(--bg-dark);
    background-image:url('/assets/images/backpic/back-3.png');
    background-size:cover;background-position:center;position:relative;
}
.related-section::before{content:'';position:absolute;inset:0;background:rgba(16,20,28,.9)}
.related-section .container{position:relative;z-index:1}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px}
.section-head h2{font-size:28px;font-weight:600;color:#fff}
.section-more{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;
    color:rgba(255,255,255,.65);transition:color .2s ease;
}
.section-more:hover{color:var(--brand)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
    background:var(--surface);border-radius:var(--radius-card);overflow:hidden;
    box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease;
    display:flex;flex-direction:column;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.related-thumb{height:160px;overflow:hidden;background:var(--bg-light)}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.related-card:hover .related-thumb img{transform:scale(1.05)}
.related-body{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column;gap:10px}
.related-body .tag{align-self:flex-start}
.related-body h3{font-size:17px;font-weight:600;line-height:1.4;color:var(--text-1);transition:color .2s ease}
.related-card:hover .related-body h3{color:var(--vigor)}
.related-body p{
    font-size:14px;color:var(--text-3);line-height:1.6;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.article-cta{padding:72px 0;background:var(--bg-light)}
.cta-box{
    background:linear-gradient(135deg,rgba(0,229,201,.08),rgba(124,92,255,.08)),var(--bg-dark);
    border-radius:16px;padding:56px 48px;text-align:center;
    border:1px solid rgba(255,255,255,.08);position:relative;overflow:hidden;
}
.cta-box::after{
    content:'';position:absolute;top:-60px;right:-60px;width:220px;height:220px;
    border-radius:50%;background:rgba(0,229,201,.12);filter:blur(60px);z-index:0;
}
.cta-box>*{position:relative;z-index:1}
.cta-box h3{font-size:28px;font-weight:600;color:#fff;margin-bottom:12px}
.cta-box p{font-size:15px;color:rgba(255,255,255,.6);margin-bottom:32px}
.site-footer{
    background:var(--bg-dark);color:rgba(255,255,255,.72);
    border-top:1px solid rgba(255,255,255,.06);padding:64px 0 32px;
}
.footer-inner{
    display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;
    gap:48px;margin-bottom:48px;
}
.footer-brand .logo{margin-bottom:12px}
.footer-brand .logo span:last-child{font-size:20px}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.55);line-height:1.7;margin-top:12px;max-width:320px}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{
    width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
    border-radius:8px;background:rgba(255,255,255,.06);color:rgba(255,255,255,.65);
    transition:all .2s ease;
}
.footer-social a:hover{background:rgba(0,229,201,.15);color:var(--brand)}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.55);padding:6px 0;transition:color .2s ease}
.footer-col a:hover{color:var(--brand)}
.footer-contact p{
    display:flex;align-items:center;gap:8px;font-size:14px;
    color:rgba(255,255,255,.55);padding:6px 0;
}
.footer-bottom{
    padding-top:24px;border-top:1px solid rgba(255,255,255,.06);
    display:flex;align-items:center;justify-content:space-between;
    flex-wrap:wrap;gap:12px;font-size:13px;color:rgba(255,255,255,.35);
}
.footer-bottom-links{display:flex;align-items:center;gap:20px}
.footer-bottom-links a{color:rgba(255,255,255,.35);transition:color .2s ease}
.footer-bottom-links a:hover{color:var(--brand)}
.modal{position:fixed;inset:0;z-index:2000;display:none;align-items:center;justify-content:center;padding:20px}
.modal.active{display:flex}
.modal-mask{position:absolute;inset:0;background:rgba(16,20,28,.55);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.modal-dialog{
    position:relative;width:560px;max-width:92vw;max-height:90vh;overflow-y:auto;
    background:rgba(255,255,255,.96);border-radius:16px;padding:32px;
    box-shadow:0 24px 60px rgba(0,0,0,.2);
}
.modal-close{
    position:absolute;top:16px;right:16px;width:40px;height:40px;
    border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
    background:var(--bg-light);color:var(--text-2);transition:all .2s ease;font-size:18px;
}
.modal-close:hover{background:var(--line);color:var(--text-1)}
.modal-dialog h3{font-size:22px;font-weight:600;color:var(--text-1);margin-bottom:8px}
.modal-dialog>p{font-size:14px;color:var(--text-3);margin-bottom:24px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:14px;font-weight:500;color:var(--text-1);margin-bottom:6px}
.form-group input,.form-group select{
    width:100%;height:46px;padding:0 14px;border:1px solid var(--line);
    border-radius:var(--radius-btn);color:var(--text-1);
    transition:border-color .2s ease,box-shadow .2s ease;background:#fff;
}
.form-group input:focus,.form-group select:focus{
    outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,229,201,.18);
}
.form-group input.error,.form-group select.error{border-color:var(--danger)}
.form-error{font-size:13px;color:var(--danger);margin-top:4px}
.form-submit{
    width:100%;height:46px;border-radius:var(--radius-btn);background:var(--brand);
    color:#10141C;font-size:15px;font-weight:600;transition:all .25s ease;margin-top:8px;
}
.form-submit:hover{background:#33EAD2}
.form-submit:disabled{background:#B8C4C2;cursor:not-allowed}
.privacy-note{
    display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--text-3);
    background:var(--bg-light);border-radius:8px;padding:12px 14px;margin-top:16px;line-height:1.5;
}
.privacy-note svg{flex-shrink:0;margin-top:2px}
.search-overlay{
    position:fixed;top:72px;left:0;right:0;z-index:1500;
    background:rgba(16,20,28,.97);backdrop-filter:blur(12px);
    padding:24px;display:none;
}
.search-overlay.active{display:block}
.search-overlay .search-inner{max-width:600px;margin:0 auto;display:flex;gap:12px}
.search-overlay input{
    flex:1;height:46px;padding:0 16px;border:1px solid rgba(255,255,255,.15);
    border-radius:8px;background:rgba(255,255,255,.08);color:#fff;font-size:15px;
}
.search-overlay input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,229,201,.15)}
.search-overlay input::placeholder{color:rgba(255,255,255,.4)}
.search-overlay button{
    padding:0 24px;border-radius:8px;background:var(--brand);color:#10141C;
    font-size:15px;font-weight:600;transition:background .2s ease;
}
.search-overlay button:hover{background:#33EAD2}
@media (max-width:1024px){
    .nav-links{display:none}
    .nav-toggle{display:inline-flex}
    .nav-links.mobile-open{
        position:fixed;top:72px;left:0;right:0;bottom:0;
        background:rgba(16,20,28,.97);backdrop-filter:blur(14px) saturate(180%);
        display:flex;flex-direction:column;align-items:flex-start;
        padding:32px 24px;gap:8px;z-index:999;overflow-y:auto;
    }
    .nav-links.mobile-open a{
        display:block;width:100%;padding:16px 12px;font-size:18px;
        color:rgba(255,255,255,.85);border-bottom:1px solid rgba(255,255,255,.06);
    }
    .nav-links.mobile-open a.active::after{display:none}
    .nav-links.mobile-open a.active{color:var(--brand)}
    .footer-inner{grid-template-columns:1fr 1fr;gap:32px}
    .article-body{padding:40px 32px}
}
@media (max-width:768px){
    .container{padding:0 16px}
    .header-inner{height:64px}
    .header-cta{display:none}
    .nav-links.mobile-open{top:64px}
    .article-hero{padding:120px 0 40px}
    .article-hero h1{font-size:28px}
    .article-section{padding:40px 0 56px}
    .article-body{padding:28px 20px;border-radius:10px}
    .related-grid{grid-template-columns:1fr}
    .cta-box{padding:40px 24px}
    .cta-box h3{font-size:24px}
    .footer-inner{grid-template-columns:1fr;gap:32px}
    .footer-bottom{flex-direction:column;align-items:flex-start}
    .section-head h2{font-size:24px}
    .article-content h2{font-size:22px}
    .article-content h3{font-size:19px}
    .search-overlay{top:64px}
}
@media (max-width:520px){
    .search-btn{display:none}
    .article-meta{gap:10px}
    .related-thumb{height:140px}
    .modal-dialog{padding:24px}
}
@media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root {
  --bg-dark: #10141C;
  --bg-light: #F6F7F9;
  --surface: #FFFFFF;
  --brand: #00E5C9;
  --vigor: #7C5CFF;
  --accent: #FFB224;
  --text-1: #171A21;
  --text-2: #5B6472;
  --text-3: #8A93A2;
  --line: #E3E8EF;
  --danger: #E5484D;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-tag: 999px;
  --shadow-card: 0 2px 10px rgba(16,20,28,.06);
  --shadow-hover: 0 10px 28px rgba(124,92,255,.14);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--text-1);
  background: var(--bg-light);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }

/* ===== Header ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(16,20,28,.35);
  backdrop-filter: blur(14px) saturate(180%);
  -webkit-backdrop-filter: blur(14px) saturate(180%);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: background .3s, box-shadow .3s;
}
.site-header.scrolled {
  background: rgba(16,20,28,.96);
  box-shadow: 0 6px 20px rgba(0,0,0,.25);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  color: #fff; font-size: 20px; font-weight: 700; line-height: 1;
}
.logo-mark {
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(0,229,201,.18), rgba(124,92,255,.18));
  border-radius: 10px;
}
.logo-mark svg { width: 24px; height: 24px; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  position: relative; color: rgba(255,255,255,.78);
  font-size: 15px; font-weight: 500; padding: 8px 2px; transition: color .25s;
}
.nav-links a:hover { color: var(--brand); }
.nav-links a.active { color: #fff; }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 2px; background: var(--brand); border-radius: 2px;
}
.header-actions { display: flex; align-items: center; gap: 14px; }
.search-wrap { position: relative; }
.search-btn {
  width: 38px; height: 38px; border-radius: 8px; display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.8); border: 1px solid rgba(255,255,255,.14); transition: all .25s;
}
.search-btn:hover { color: var(--brand); border-color: var(--brand); }
.search-expand {
  position: absolute; right: 0; top: calc(100% + 8px); width: 0; overflow: hidden;
  background: #fff; border-radius: 8px; box-shadow: 0 8px 24px rgba(16,20,28,.12);
  transition: width .3s; z-index: 50;
}
.search-expand.open { width: 240px; }
.search-expand input {
  width: 100%; height: 42px; border: 1px solid var(--line); border-radius: 8px;
  padding: 0 14px; font-size: 14px; color: var(--text-1);
}
.search-expand input:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(0,229,201,.18); }
.header-cta {
  display: inline-flex; align-items: center; justify-content: center; height: 38px; padding: 0 20px;
  background: var(--brand); color: var(--bg-dark); font-size: 14px; font-weight: 600;
  border-radius: var(--radius-btn); transition: all .25s;
}
.header-cta:hover { filter: brightness(1.05); box-shadow: 0 4px 16px rgba(0,229,201,.25); }
.nav-toggle {
  display: none; width: 40px; height: 40px; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,.14); border-radius: 8px; position: relative; z-index: 96;
}
.nav-toggle .bar { position: relative; width: 18px; height: 2px; background: #fff; border-radius: 2px; transition: background .3s; }
.nav-toggle .bar::before,
.nav-toggle .bar::after {
  content: ""; position: absolute; left: 0; width: 18px; height: 2px; background: #fff; border-radius: 2px; transition: transform .3s;
}
.nav-toggle .bar::before { top: -6px; }
.nav-toggle .bar::after { top: 6px; }
.nav-toggle.open .bar { background: transparent; }
.nav-toggle.open .bar::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open .bar::after { transform: translateY(-6px) rotate(-45deg); }
.drawer-cta { display: none; }

/* ===== Hero / H1 ===== */
.hero-cat {
  position: relative; padding: 160px 0 96px; overflow: hidden;
  background-color: var(--bg-dark);
  background-image:
    radial-gradient(circle at 82% 18%, rgba(124,92,255,.22) 0, transparent 50%),
    radial-gradient(circle at 8% 92%, rgba(0,229,201,.18) 0, transparent 45%),
    linear-gradient(135deg, rgba(16,20,28,.58) 0%, rgba(16,20,28,.84) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
}
.hero-cat::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,.7), transparent 85%);
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.7), transparent 85%);
}
.hero-content { position: relative; z-index: 2; max-width: 780px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: var(--radius-tag);
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14);
  color: var(--brand); font-size: 13px; letter-spacing: .5px;
}
.hero-content h1 {
  font-size: 44px; line-height: 1.25; color: #fff; font-weight: 700; margin: 16px 0 12px;
}
.hero-sub { font-size: 17px; color: rgba(255,255,255,.78); max-width: 640px; }
.hero-actions { margin-top: 28px; display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 28px; border-radius: var(--radius-btn);
  font-size: 15px; font-weight: 600; transition: all .25s;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: scale(.98); }
.btn-primary { background: var(--brand); color: var(--bg-dark); }
.btn-primary:hover { filter: brightness(1.05); box-shadow: 0 6px 20px rgba(0,229,201,.3); }
.btn-ghost { border: 1px solid rgba(255,255,255,.3); color: #fff; background: transparent; }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); background: rgba(0,229,201,.06); }

/* ===== Section head ===== */
.section-head { margin-bottom: 48px; }
.section-head .tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: var(--radius-tag);
  background: rgba(124,92,255,.08); color: var(--vigor); font-size: 13px; font-weight: 600;
}
.section-head h2 { font-size: 28px; font-weight: 600; margin-top: 12px; line-height: 1.3; color: var(--text-1); }
.section-head p { margin-top: 8px; color: var(--text-2); max-width: 640px; }

/* ===== Content cards ===== */
.cat-section { background: var(--bg-light); }
.cards-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.card-item {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-card); padding: 28px;
  box-shadow: var(--shadow-card); transition: all .3s;
}
.card-item:hover {
  transform: translateY(-2px); border-color: rgba(124,92,255,.3); box-shadow: var(--shadow-hover);
}
.card-icon {
  width: 56px; height: 56px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,229,201,.1); color: var(--brand); margin-bottom: 18px; transition: background .3s, color .3s;
}
.card-item:hover .card-icon { background: rgba(124,92,255,.2); color: var(--vigor); }
.card-icon svg { width: 28px; height: 28px; }
.card-item h3 { font-size: 20px; font-weight: 600; margin-bottom: 10px; }
.card-item p { font-size: 14px; color: var(--text-2); }
.card-list { list-style: none; margin-top: 18px; border-top: 1px solid var(--line); padding-top: 16px; }
.card-list li { position: relative; padding-left: 16px; font-size: 14px; color: var(--text-2); margin-bottom: 8px; }
.card-list li::before {
  content: ""; position: absolute; left: 0; top: 9px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--brand);
}

/* ===== Process ===== */
.process-section { background: var(--surface); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step {
  padding: 24px; border-radius: var(--radius-card);
  background: var(--bg-light); border: 1px solid var(--line); transition: border-color .3s, box-shadow .3s;
}
.process-step:hover { border-color: rgba(124,92,255,.3); box-shadow: var(--shadow-hover); }
.process-num {
  font-family: "Inter", "DIN Alternate", "Roboto", monospace;
  font-size: 32px; font-weight: 700; color: rgba(124,92,255,.2); line-height: 1;
}
.process-step h3 { font-size: 17px; font-weight: 600; margin: 12px 0 6px; }
.process-step p { font-size: 13px; color: var(--text-2); }

/* ===== Other category nav ===== */
.other-cats-section { background: var(--bg-light); }
.cats-nav-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.cat-nav-card {
  display: flex; align-items: center; gap: 20px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-card); padding: 20px 24px;
  box-shadow: var(--shadow-card); transition: all .3s;
}
.cat-nav-card:hover {
  border-color: rgba(124,92,255,.35); box-shadow: var(--shadow-hover); transform: translateY(-2px);
}
.cat-nav-thumb {
  width: 132px; height: 88px; border-radius: 8px; flex-shrink: 0;
  background-size: cover; background-position: center;
}
.cat-nav-body h3 { font-size: 18px; font-weight: 600; }
.cat-nav-body p { font-size: 14px; color: var(--text-2); margin-top: 4px; }
.cat-nav-link {
  font-size: 13px; color: var(--brand); font-weight: 600; margin-top: 8px;
  display: inline-flex; align-items: center; gap: 4px; transition: color .25s;
}
.cat-nav-link:hover { color: var(--vigor); }
.cat-nav-link svg { width: 14px; height: 14px; }

/* ===== FAQ ===== */
.faq-section { background: var(--surface); }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--bg-light); border-left: 3px solid var(--brand);
  border-radius: 0 12px 12px 0; margin-bottom: 14px;
}
.faq-q {
  display: flex; justify-content: space-between; align-items: center;
  width: 100%; padding: 20px 24px; font-size: 16px; font-weight: 600;
  text-align: left; color: var(--text-1); transition: color .25s;
}
.faq-q:hover { color: var(--brand); }
.faq-icon {
  width: 24px; height: 24px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,229,201,.1); color: var(--brand); font-size: 16px;
  transition: transform .3s, background .3s;
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: rgba(124,92,255,.2); color: var(--vigor); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-a-inner { padding: 0 24px 20px; font-size: 14px; color: var(--text-2); }

/* ===== Final CTA ===== */
.cta-final-section { background: var(--bg-light); }
.cta-box {
  position: relative; background: var(--bg-dark); border-radius: 16px;
  padding: 56px 40px; text-align: center; overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
}
.cta-box::before {
  content: ""; position: absolute; width: 320px; height: 320px; border-radius: 50%;
  background: rgba(0,229,201,.14); filter: blur(80px); left: -80px; top: -80px;
}
.cta-box::after {
  content: ""; position: absolute; width: 280px; height: 280px; border-radius: 50%;
  background: rgba(124,92,255,.16); filter: blur(80px); right: -60px; bottom: -100px;
}
.cta-box h3 { position: relative; z-index: 1; color: #fff; font-size: 28px; font-weight: 600; }
.cta-box p { position: relative; z-index: 1; color: rgba(255,255,255,.7); margin: 12px 0 24px; }
.cta-box .btn { position: relative; z-index: 1; }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark); border-top: 1px solid rgba(255,255,255,.06);
  color: rgba(255,255,255,.72); padding: 64px 0 24px;
}
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.06);
}
.footer-brand .logo { font-size: 20px; }
.footer-brand p { font-size: 14px; margin-top: 16px; line-height: 1.8; color: rgba(255,255,255,.6); }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.footer-social a {
  width: 34px; height: 34px; border-radius: 8px;
  border: 1px solid rgba(255,255,255,.1);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.7); transition: all .25s;
}
.footer-social a:hover { color: var(--brand); border-color: var(--brand); }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-col a {
  display: block; color: rgba(255,255,255,.6);
  font-size: 14px; margin-bottom: 10px; transition: color .25s;
}
.footer-col a:hover { color: var(--brand); }
.footer-contact p {
  display: flex; align-items: center; gap: 8px;
  color: rgba(255,255,255,.6); font-size: 14px; margin-bottom: 10px;
}
.footer-contact svg { flex-shrink: 0; }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  padding-top: 20px; font-size: 13px; color: rgba(255,255,255,.4);
}
.footer-bottom-links { display: flex; gap: 16px; }
.footer-bottom-links a { color: rgba(255,255,255,.5); transition: color .25s; }
.footer-bottom-links a:hover { color: var(--brand); }

/* ===== Modal ===== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  display: flex; align-items: center; justify-content: center; padding: 24px;
  background: rgba(16,20,28,.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0; visibility: hidden;
  transition: opacity .3s, visibility .3s;
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal {
  width: 560px; max-width: 100%;
  background: rgba(255,255,255,.96); border-radius: 16px;
  padding: 32px; position: relative;
  box-shadow: 0 24px 60px rgba(0,0,0,.3);
  transform: translateY(12px); transition: transform .3s;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-close {
  position: absolute; top: 16px; right: 16px;
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(16,20,28,.06);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-2); transition: background .25s;
}
.modal-close:hover { background: rgba(16,20,28,.12); }
.modal h3 { font-size: 24px; margin-bottom: 6px; }
.modal-sub { font-size: 14px; color: var(--text-2); margin-bottom: 24px; }
.form-grid { display: grid; gap: 16px; }
.form-field label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; }
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%; height: 46px; border: 1px solid var(--line);
  border-radius: 12px; padding: 0 14px; font-size: 14px;
  color: var(--text-1); background: #fff; transition: border-color .25s, box-shadow .25s;
}
.form-field textarea { height: auto; min-height: 80px; padding: 12px 14px; resize: vertical; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(0,229,201,.18);
}
.form-submit {
  height: 46px; border-radius: 12px; background: var(--brand); color: var(--bg-dark);
  font-size: 15px; font-weight: 600; transition: all .25s;
}
.form-submit:hover { filter: brightness(1.05); box-shadow: 0 6px 18px rgba(0,229,201,.25); }
.form-privacy {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--text-3);
  background: rgba(16,20,28,.04); padding: 10px 14px; border-radius: 8px; margin-top: 4px;
}
.form-privacy svg { flex-shrink: 0; }
.form-success { text-align: center; padding: 24px 0; }
.form-success svg {
  width: 48px; height: 48px; margin: 0 auto 12px; color: var(--brand);
}
.form-success p { font-size: 15px; color: var(--text-2); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .section { padding: 64px 0; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 40px 0; }
  .nav-links {
    position: fixed; inset: 0; z-index: 95;
    background: rgba(16,20,28,.97);
    backdrop-filter: blur(14px) saturate(180%);
    -webkit-backdrop-filter: blur(14px) saturate(180%);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 28px; opacity: 0; visibility: hidden;
    transition: opacity .3s, visibility .3s;
  }
  .nav-links.open { opacity: 1; visibility: visible; }
  .nav-links a { font-size: 24px; }
  .nav-toggle { display: flex; }
  .header-cta { display: none; }
  .drawer-cta { display: inline-flex; width: 200px; }
  .hero-cat { padding: 130px 0 64px; }
  .hero-content h1 { font-size: 32px; }
  .cards-grid { grid-template-columns: 1fr; }
  .cats-nav-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 40px 24px; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .search-expand.open { width: 200px; }
}
@media (max-width: 520px) {
  .hero-content h1 { font-size: 26px; }
  .hero-sub { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
  .card-item { padding: 20px; }
  .cat-nav-card { flex-direction: column; align-items: flex-start; }
  .cat-nav-thumb { width: 100%; height: 140px; }
  .cta-box h3 { font-size: 22px; }
  .modal { padding: 24px 20px; }
}

/* roulang page: category3 */
:root{
  --bg-dark:#10141C;
  --bg-light:#F6F7F9;
  --surface:#FFFFFF;
  --brand:#00E5C9;
  --vigor:#7C5CFF;
  --accent:#FFB224;
  --text-1:#171A21;
  --text-2:#5B6472;
  --text-3:#8A93A2;
  --line:#E3E8EF;
  --danger:#E5484D;
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:16px;
  --radius-pill:999px;
  --shadow-card:0 2px 10px rgba(16,20,28,.06);
  --shadow-hover:0 10px 28px rgba(124,92,255,.14);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter","DIN Alternate","Roboto",monospace;
  --transition:.25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:var(--bg-light);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:none;background:none;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:#fff;letter-spacing:.5px}
.logo-mark{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.logo-mark svg{width:100%;height:100%}
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(16,20,28,.35);
  backdrop-filter:blur(14px) saturate(180%);
  -webkit-backdrop-filter:blur(14px) saturate(180%);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(16,20,28,.96);
  box-shadow:0 6px 20px rgba(0,0,0,.25);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{
  color:rgba(255,255,255,.78);
  font-size:15px;
  font-weight:500;
  position:relative;
  padding:6px 2px;
  transition:color .2s ease;
}
.nav-links a:hover{color:var(--brand)}
.nav-links a.active{color:var(--brand)}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:14px}
.search-box{position:relative;display:flex;align-items:center}
.search-btn{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.7);transition:background .2s,color .2s;
}
.search-btn:hover{background:rgba(255,255,255,.1);color:var(--brand)}
.search-input{
  width:0;opacity:0;border:1px solid rgba(255,255,255,.2);background:rgba(16,20,28,.6);
  color:#fff;height:36px;border-radius:var(--radius-pill);padding:0;font-size:14px;
  transition:width .3s ease,opacity .3s ease,padding .3s ease;outline:none;
}
.search-box.open .search-input{
  width:180px;opacity:1;padding:0 14px;margin-left:8px;
}
.search-input::placeholder{color:rgba(255,255,255,.35)}
.header-cta{
  display:inline-flex;align-items:center;gap:6px;background:var(--brand);color:var(--bg-dark);
  font-size:14px;font-weight:600;padding:9px 20px;border-radius:var(--radius-sm);
  transition:background .2s,transform .15s,box-shadow .2s;
}
.header-cta:hover{background:#00f5d6;box-shadow:0 4px 16px rgba(0,229,201,.3)}
.header-cta:active{transform:scale(.98)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:8px;position:relative;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
}
.nav-toggle .bar{
  position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:#fff;
  transition:transform .25s ease,top .25s ease,opacity .25s ease;
}
.nav-toggle .bar:nth-child(1){top:14px}
.nav-toggle .bar:nth-child(2){top:19px}
.nav-toggle .bar:nth-child(3){top:24px}
.nav-toggle.open .bar:nth-child(1){top:19px;transform:rotate(45deg)}
.nav-toggle.open .bar:nth-child(2){opacity:0}
.nav-toggle.open .bar:nth-child(3){top:19px;transform:rotate(-45deg)}
.mobile-menu{
  position:fixed;top:0;left:0;right:0;bottom:0;z-index:999;
  background:rgba(16,20,28,.92);
  backdrop-filter:blur(20px) saturate(180%);
  -webkit-backdrop-filter:blur(20px) saturate(180%);
  display:flex;flex-direction:column;justify-content:center;padding:48px 32px;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s;
}
.mobile-menu.open{opacity:1;visibility:visible}
.mobile-menu a{
  color:#fff;font-size:24px;font-weight:600;line-height:60px;border-bottom:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;align-items:center;transition:color .2s;
}
.mobile-menu a:hover{color:var(--brand)}
.mobile-menu a.active{color:var(--brand)}
.mobile-menu .btn{width:100%;margin-top:28px;height:52px;justify-content:center;display:flex;align-items:center}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;border-radius:var(--radius-sm);font-weight:600;font-size:15px;
  line-height:1;transition:all .2s ease;cursor:pointer;border:1px solid transparent;
}
.btn-primary{background:var(--brand);color:var(--bg-dark)}
.btn-primary:hover{background:#00f5d6;box-shadow:0 4px 18px rgba(0,229,201,.35)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;color:rgba(255,255,255,.85);border-color:rgba(255,255,255,.3)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:rgba(0,229,201,.06)}
.btn-ghost:active{transform:scale(.98)}
.btn-dark{background:var(--brand);color:var(--bg-dark);width:100%;height:48px;font-size:15px;font-weight:600;border-radius:var(--radius-sm)}
.btn-dark:hover{background:#00f5d6}
.page-hero{
  position:relative;min-height:540px;display:flex;align-items:center;
  background:var(--bg-dark);color:#fff;overflow:hidden;padding:180px 0 80px;
}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.35}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(16,20,28,.92) 0%,rgba(16,20,28,.78) 45%,rgba(124,92,255,.22) 100%)}
.hero-orb{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none}
.hero-orb.orb-1{width:320px;height:320px;background:rgba(0,229,201,.16);top:10%;right:8%}
.hero-orb.orb-2{width:280px;height:280px;background:rgba(124,92,255,.2);bottom:-40px;left:35%}
.hero-content{position:relative;z-index:2;max-width:860px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);
  font-size:13px;color:rgba(255,255,255,.8);margin-bottom:24px;
}
.hero-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.page-hero h1{
  font-size:46px;font-weight:700;line-height:1.25;letter-spacing:1px;
  margin-bottom:20px;color:#fff;
}
.page-hero h1 .txt-gradient{
  background:linear-gradient(90deg,var(--brand),var(--vigor));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-sub{
  font-size:17px;line-height:1.8;color:rgba(255,255,255,.75);max-width:640px;margin-bottom:36px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-trust{
  display:flex;gap:28px;margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.08);flex-wrap:wrap;
}
.trust-item{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6)}
.trust-item svg{color:var(--brand)}

.section{padding:96px 0}
.section-light{background:var(--bg-light)}
.section-white{background:var(--surface)}
.section-dark{background:var(--bg-dark);color:#fff;position:relative;overflow:hidden}
.section-dark .section-head p{color:rgba(255,255,255,.6)}
.section-head{margin-bottom:56px;max-width:640px}
.section-meta{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:2px;color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.section-meta::before{content:"";width:18px;height:2px;background:var(--brand);border-radius:2px}
.section-head h2{font-size:32px;font-weight:600;line-height:1.3;margin-bottom:12px;letter-spacing:.5px}
.section-head p{font-size:15px;color:var(--text-2);line-height:1.75}

.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.info-card{
  background:var(--surface);border-radius:var(--radius);border:1px solid var(--line);
  padding:32px;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(124,92,255,.35)}
.info-card-img{
  width:100%;height:150px;border-radius:10px;object-fit:cover;margin-bottom:20px;background:#eef0f3;
}
.info-card-icon{
  width:56px;height:56px;border-radius:14px;background:rgba(0,229,201,.1);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--brand);
  transition:background .25s ease;
}
.info-card:hover .info-card-icon{background:rgba(124,92,255,.18);color:var(--vigor)}
.info-card h3{font-size:20px;font-weight:600;margin-bottom:10px;line-height:1.4}
.info-card p{font-size:14px;color:var(--text-2);line-height:1.75}
.info-card .card-tag{
  align-self:flex-start;margin-top:16px;font-size:12px;color:var(--vigor);
  background:rgba(124,92,255,.08);padding:4px 12px;border-radius:var(--radius-pill);
}

.audience-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.audience-card{
  background:var(--surface);border-radius:var(--radius);border:1px solid var(--line);
  padding:28px 24px;text-align:center;transition:transform .25s ease,box-shadow .25s ease;
}
.audience-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.audience-icon{
  width:52px;height:52px;border-radius:50%;background:rgba(124,92,255,.1);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:var(--vigor);
  transition:background .25s;
}
.audience-card:hover .audience-icon{background:rgba(0,229,201,.15);color:var(--brand)}
.audience-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.audience-card p{font-size:14px;color:var(--text-2);line-height:1.7}

.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;z-index:2}
.process-step{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);
  padding:32px 24px;position:relative;transition:border-color .25s,background .25s;
}
.process-step:hover{border-color:rgba(0,229,201,.4);background:rgba(255,255,255,.06)}
.step-num{
  font-family:var(--font-num);font-size:42px;font-weight:700;color:rgba(0,229,201,.7);
  line-height:1;display:block;margin-bottom:20px;
}
.process-step h3{font-size:18px;font-weight:600;margin-bottom:10px;color:#fff}
.process-step p{font-size:14px;color:rgba(255,255,255,.55);line-height:1.7}
.section-dark::before{
  content:"";position:absolute;top:0;left:0;right:0;bottom:0;
  background-image:radial-gradient(circle,#ffffff08 1px,transparent 1px);
  background-size:22px 22px;pointer-events:none;
}

.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  background:var(--surface);border-radius:var(--radius);border:1px solid var(--line);
  overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(124,92,255,.3)}
.related-card.current{border-color:rgba(0,229,201,.45)}
.related-card-img{width:100%;height:170px;object-fit:cover;background:#eef0f3}
.related-card-body{padding:24px}
.related-card-body .tag-line{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.related-card-body .badge{
  display:inline-flex;align-items:center;font-size:12px;padding:3px 12px;border-radius:var(--radius-pill);
  background:rgba(124,92,255,.08);color:var(--vigor);font-weight:500;
}
.related-card-body .badge.current{background:rgba(0,229,201,.12);color:#00806f}
.related-card-body h3{font-size:18px;font-weight:600;margin-bottom:8px}
.related-card-body p{font-size:14px;color:var(--text-2);line-height:1.65;margin-bottom:16px}
.related-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
  transition:gap .2s;
}
.related-link:hover{gap:10px;color:var(--vigor)}

.faq-section{background:var(--bg-light)}
.faq-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:var(--radius);padding:22px 24px;transition:box-shadow .25s;
}
.faq-item:hover{box-shadow:var(--shadow-card)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;width:100%;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);cursor:pointer;
}
.faq-toggle{
  width:24px;height:24px;border-radius:50%;background:rgba(0,229,201,.1);position:relative;flex-shrink:0;
  transition:background .25s,transform .25s;
}
.faq-toggle::before,.faq-toggle::after{content:"";position:absolute;background:var(--brand);border-radius:1px;transition:transform .25s}
.faq-toggle::before{width:10px;height:2px;top:11px;left:7px}
.faq-toggle::after{width:2px;height:10px;top:7px;left:11px}
.faq-item:hover .faq-toggle{background:rgba(0,229,201,.2)}
.faq-item.open .faq-toggle{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;font-size:14px;color:var(--text-2);line-height:1.75}
.faq-item.open .faq-a{max-height:300px;margin-top:12px}

.cta-section{padding-bottom:96px;background:var(--bg-light)}
.cta-box{
  position:relative;background:var(--bg-dark);border-radius:var(--radius-lg);
  padding:72px 48px;text-align:center;overflow:hidden;color:#fff;
}
.cta-box::before{
  content:"";position:absolute;width:300px;height:300px;background:rgba(0,229,201,.12);
  border-radius:50%;filter:blur(90px);top:-80px;left:-60px;
}
.cta-box::after{
  content:"";position:absolute;width:320px;height:320px;background:rgba(124,92,255,.14);
  border-radius:50%;filter:blur(90px);bottom:-100px;right:-60px;
}
.cta-inner{position:relative;z-index:2}
.cta-box h2{font-size:32px;font-weight:600;margin-bottom:14px;line-height:1.3}
.cta-box p{font-size:15px;color:rgba(255,255,255,.6);margin-bottom:32px}
.cta-box .btn{margin:0 auto}

.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.65);border-top:1px solid rgba(255,255,255,.06);padding-top:64px}
.footer-inner{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{margin-bottom:14px;display:inline-flex}
.footer-brand p{font-size:14px;line-height:1.8;margin-bottom:20px;color:rgba(255,255,255,.5)}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.5);
  transition:all .2s;
}
.footer-social a:hover{background:rgba(0,229,201,.1);border-color:var(--brand);color:var(--brand)}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:20px}
.footer-col a{
  display:block;font-size:14px;color:rgba(255,255,255,.5);padding:6px 0;transition:color .2s;
}
.footer-col a:hover{color:var(--brand)}
.footer-contact p{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.5);padding:6px 0}
.footer-contact svg{color:var(--brand);flex-shrink:0}
.footer-bottom{
  padding:24px 0;border-top:1px solid rgba(255,255,255,.06);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.35);
}
.footer-bottom-links{display:flex;align-items:center;gap:12px}
.footer-bottom-links a{color:rgba(255,255,255,.35);transition:color .2s}
.footer-bottom-links a:hover{color:var(--brand)}

.modal-overlay{
  position:fixed;inset:0;background:rgba(16,20,28,.55);backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);z-index:2000;display:none;
  align-items:center;justify-content:center;padding:20px;
}
.modal-overlay.open{display:flex}
.modal{
  width:560px;max-width:92vw;background:rgba(255,255,255,.97);
  border-radius:16px;padding:36px;position:relative;box-shadow:0 20px 60px rgba(0,0,0,.25);
}
.modal-close{
  position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;color:var(--text-2);
  transition:background .2s;
}
.modal-close:hover{background:rgba(0,0,0,.06)}
.modal h3{font-size:24px;font-weight:700;margin-bottom:6px}
.modal>p{font-size:14px;color:var(--text-2);margin-bottom:24px}
.cta-form{display:grid;gap:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{display:flex;flex-direction:column;gap:6px}
.form-group label{font-size:13px;font-weight:600;color:var(--text-1)}
.form-group input,.form-group select{
  height:44px;padding:0 14px;border-radius:12px;border:1px solid var(--line);
  font-size:15px;outline:none;transition:border-color .2s,box-shadow .2s;background:#fff;
  width:100%;
}
.form-group input:focus,.form-group select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,229,201,.18)}
.form-group .error-msg{font-size:13px;color:var(--danger);display:none}
.form-group.error input{border-color:var(--danger)}
.form-group.error .error-msg{display:block}
.cta-form .btn{margin-top:4px;height:46px;background:var(--brand);color:var(--bg-dark);font-weight:600;border-radius:12px}
.cta-form .btn:hover{background:#00f5d6}
.cta-form .btn:disabled{background:#ccc;color:#888;cursor:not-allowed}
.privacy-note{
  display:flex;align-items:flex-start;gap:8px;background:#f5f6f8;
  padding:10px 14px;border-radius:8px;font-size:13px;color:var(--text-3);margin-top:16px;line-height:1.5;
}
.privacy-note svg{flex-shrink:0;margin-top:4px;color:var(--brand)}

@media(max-width:1200px){
  .page-hero h1{font-size:40px}
  .audience-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:992px){
  .info-grid{grid-template-columns:1fr 1fr}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .related-card:last-child{grid-column:span 2}
  .footer-inner{grid-template-columns:1fr 1fr}
  .section{padding:72px 0}
}
@media(max-width:768px){
  .nav-links{display:none}
  .nav-toggle{display:block}
  .header-search{display:none}
  .header-cta{display:none}
  .page-hero{
    min-height:560px;padding:160px 0 64px;text-align:center;
  }
  .hero-content{display:flex;flex-direction:column;align-items:center}
  .page-hero h1{font-size:34px}
  .hero-sub{font-size:16px;max-width:100%}
  .hero-actions{width:100%;justify-content:center}
  .hero-trust{justify-content:center;gap:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:40px}
  .section-head h2{font-size:26px}
  .section-meta{font-size:11px}
  .info-grid{grid-template-columns:1fr}
  .audience-grid{grid-template-columns:1fr 1fr}
  .process-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .related-card:last-child{grid-column:auto}
  .faq-layout{grid-template-columns:1fr}
  .cta-section{padding-bottom:56px}
  .cta-box{padding:48px 24px}
  .cta-box h2{font-size:26px}
  .footer-inner{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center}
  .form-row{grid-template-columns:1fr}
  .search-box.open .search-input{width:130px}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .page-hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .hero-trust{flex-direction:column;align-items:center;gap:12px}
  .audience-grid{grid-template-columns:1fr 1fr;gap:16px}
  .audience-card{padding:20px 16px}
  .audience-card p{font-size:13px}
  .hero-actions .btn{width:100%}
  .section-head p{font-size:14px}
  .mobile-menu a{font-size:20px;line-height:50px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}