/* roulang page: index */
:root{
  --brand-50:#EAF4FB;
  --brand-100:#D6EAF7;
  --brand-500:#1C6FA8;
  --brand-600:#155A8A;
  --brand-700:#0F466B;
  --accent-500:#F97316;
  --accent-600:#EA580C;
  --success:#16A34A;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --text:#102033;
  --muted:#5B6B7C;
  --border:#DCE6EF;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 10px 30px rgba(15,42,66,.08);
  --shadow-2:0 16px 40px rgba(15,42,66,.14);
  --ease:.2s ease;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:-.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(28,111,168,.45);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:760px;margin-bottom:44px}
.section-eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:1.6px;color:var(--brand-600);background:var(--brand-50);border-radius:999px;padding:5px 14px;margin-bottom:14px}
.section-title{font-size:clamp(24px,2.6vw,34px)}
.section-desc{margin-top:14px;color:var(--muted);font-size:16px}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.95);
  border-bottom:1px solid var(--border);
  backdrop-filter:saturate(160%) blur(10px);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:76px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  background:var(--brand-600);
  color:#fff;font-weight:700;font-size:15px;letter-spacing:.5px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(21,90,138,.28);
}
.brand-text{font-size:17px;font-weight:700;color:var(--brand-700);white-space:nowrap}
.brand-sub{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:1.4px;line-height:1}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  padding:9px 15px;border-radius:999px;font-size:15px;color:#3C4E61;
  transition:background var(--ease),color var(--ease);
  white-space:nowrap;
}
.nav-link:hover{background:var(--brand-50);color:var(--brand-600)}
.nav-link.active{background:var(--brand-50);color:var(--brand-700);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px}

.mega-wrap{position:relative}
.mega-toggle{
  display:flex;align-items:center;gap:7px;
  padding:9px 15px;border-radius:10px;cursor:pointer;
  background:#fff;border:1px solid var(--border);
  font-size:15px;color:#3C4E61;
  transition:border-color var(--ease),background var(--ease),color var(--ease);
}
.mega-toggle:hover{border-color:var(--brand-100);background:var(--brand-50);color:var(--brand-600)}
.mega-toggle .caret{transition:transform var(--ease)}
.mega-wrap.open .mega-toggle .caret{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:680px;background:#fff;border:1px solid var(--border);
  border-radius:16px;box-shadow:var(--shadow-2);padding:24px;
  display:none;grid-template-columns:repeat(3,1fr);gap:24px;
}
.mega-wrap.open .mega-panel{display:grid}
.mega-col h4{font-size:13px;letter-spacing:1.4px;color:var(--brand-600);margin-bottom:12px;text-transform:uppercase}
.mega-link{display:block;padding:7px 0;font-size:14.5px;color:#3C4E61;border-bottom:1px dashed transparent;transition:color var(--ease)}
.mega-link:hover{color:var(--brand-600)}
.mega-link span{display:block;font-size:12.5px;color:var(--muted);line-height:1.6}
.mega-card{
  display:block;padding:16px;border-radius:14px;
  background:var(--brand-50);border:1px solid var(--brand-100);
}
.mega-card strong{display:block;font-size:15px;color:var(--brand-700)}
.mega-card em{font-style:normal;display:block;margin-top:6px;font-size:13px;color:var(--muted);line-height:1.6}

.hamburger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.hamburger i{display:block;width:18px;height:2px;background:#3C4E61;border-radius:2px;transition:var(--ease)}
.mobile-drawer{
  position:fixed;left:0;right:0;top:76px;bottom:0;z-index:75;
  background:#fff;padding:18px 24px 90px;overflow-y:auto;
  transform:translateY(-10px);opacity:0;pointer-events:none;
  transition:transform var(--ease),opacity var(--ease);
}
.mobile-drawer.open{transform:none;opacity:1;pointer-events:auto}
.mobile-drawer a{
  display:flex;justify-content:space-between;align-items:center;
  padding:15px 4px;font-size:16px;border-bottom:1px solid var(--border);
}
.mobile-drawer a.active{color:var(--brand-600);font-weight:600}
.mobile-drawer .drawer-cta{margin-top:22px;display:block;text-align:center;border-bottom:none}

/* ============ Buttons / Badges ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-lg{padding:15px 28px;font-size:16px}
.btn-block{width:100%}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.28)}
.btn-accent:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:0 14px 28px rgba(234,88,12,.32)}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 8px 20px rgba(21,90,138,.24)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost{background:#fff;border-color:var(--border);color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-50);border-color:var(--brand-100);transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--brand-50);color:var(--brand-600);border:1px solid var(--brand-100);
}
.badge-live{background:#FFF3E9;color:#C2410C;border-color:#FED7AA}
.badge-live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent-500);box-shadow:0 0 0 4px rgba(249,115,22,.18)}
.tag{display:inline-block;padding:4px 11px;border-radius:999px;font-size:12.5px;background:var(--brand-50);color:var(--brand-600);font-weight:500}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#F2F8FD 0%,var(--bg) 100%);
  padding:70px 0 80px;
}
.hero::after{
  content:"";position:absolute;right:-160px;top:-180px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(28,111,168,.10),rgba(28,111,168,0) 68%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-copy{max-width:620px}
.hero h1{
  margin:20px 0 0;
  font-size:clamp(31px,4vw,48px);
  line-height:1.26;
  letter-spacing:-.6px;
}
.hero-sub{margin-top:20px;font-size:17px;color:var(--muted);line-height:1.85}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-meta span{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border-radius:10px;background:#fff;
  border:1px solid var(--border);font-size:14px;color:#3C4E61;box-shadow:var(--shadow-1);
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:38px;padding-top:26px;border-top:1px dashed var(--border)}
.trust-item{font-size:13.5px;color:var(--muted);display:flex;align-items:center;gap:8px}
.trust-item b{color:var(--brand-600);font-size:15px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;height:430px;object-fit:cover;
  border-radius:22px;box-shadow:var(--shadow-2);
}
.info-card{
  position:absolute;left:-22px;bottom:-26px;width:290px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:20px;
}
.info-card h3{font-size:16px;color:var(--brand-700)}
.info-card ul{margin-top:12px;display:grid;gap:9px}
.info-card li{display:flex;justify-content:space-between;font-size:13.5px;color:var(--muted);border-bottom:1px dashed var(--border);padding-bottom:8px}
.info-card li:last-child{border-bottom:none;padding-bottom:0}
.info-card li b{color:var(--text);font-weight:600}

/* ============ Stats ============ */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px 24px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.stat-num{font-size:38px;font-weight:700;color:var(--brand-600);letter-spacing:-1px;line-height:1.1}
.stat-num small{font-size:16px;font-weight:600;margin-left:3px;color:var(--brand-500)}
.stat-label{margin-top:10px;font-size:14.5px;color:var(--muted)}

/* ============ Agenda ============ */
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.tab-btn{
  padding:10px 20px;border-radius:999px;cursor:pointer;
  background:#fff;border:1px solid var(--border);font-size:14.5px;color:#3C4E61;
  transition:var(--ease);
}
.tab-btn:hover{border-color:var(--brand-100);color:var(--brand-600)}
.tab-btn.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff;box-shadow:0 8px 18px rgba(21,90,138,.24)}
.timeline{position:relative;padding-left:8px}
.tl-item{position:relative;display:grid;grid-template-columns:120px 1fr;gap:26px;padding:0 0 30px 30px;border-left:2px solid var(--border)}
.tl-item:last-child{border-left-color:transparent;padding-bottom:0}
.tl-dot{
  position:absolute;left:-9px;top:6px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--border);
}
.tl-item.done .tl-dot{border-color:var(--success)}
.tl-item.doing .tl-dot{border-color:var(--accent-500);box-shadow:0 0 0 6px rgba(249,115,22,.16)}
.tl-time{font-size:16px;font-weight:700;color:var(--brand-700)}
.tl-body{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:18px 22px;box-shadow:var(--shadow-1);transition:var(--ease)}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.tl-title{font-size:16.5px;font-weight:600}
.tl-desc{margin-top:7px;font-size:14.5px;color:var(--muted)}
.tl-state{margin-top:12px;display:inline-block;font-size:12.5px;font-weight:600;padding:3px 11px;border-radius:999px}
.tl-item.done .tl-state{background:#E8F7EE;color:#15803D}
.tl-item.doing .tl-state{background:#FFF3E9;color:#C2410C}
.tl-item.todo .tl-state{background:#F1F5F9;color:#64748B}

/* ============ Speakers ============ */
.speaker-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.speaker-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease);
}
.speaker-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.speaker-card img{width:100%;height:196px;object-fit:cover}
.speaker-body{padding:20px}
.speaker-name{font-size:17px}
.speaker-role{margin-top:5px;font-size:13.5px;color:var(--muted)}
.speaker-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:13px}
.speaker-link{display:inline-block;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand-600)}
.speaker-link:hover{color:var(--accent-500)}

/* ============ Price ============ */
.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:stretch}
.price-card{
  position:relative;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px 24px;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease);
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.price-card.featured{border-color:var(--brand-500);box-shadow:0 18px 42px rgba(21,90,138,.16)}
.price-card.featured::before{
  content:"";position:absolute;left:0;right:0;top:0;height:5px;border-radius:16px 16px 0 0;background:var(--accent-500);
}
.ribbon{
  position:absolute;right:20px;top:-13px;
  background:var(--accent-500);color:#fff;font-size:12.5px;font-weight:600;
  padding:4px 13px;border-radius:999px;box-shadow:0 6px 16px rgba(249,115,22,.3);
}
.price-name{font-size:17px}
.price-note{margin-top:6px;font-size:13.5px;color:var(--muted);min-height:22px}
.price-amount{margin-top:18px;font-size:36px;font-weight:700;color:var(--brand-700);letter-spacing:-1px;line-height:1.1}
.price-amount span{font-size:14px;font-weight:500;color:var(--muted);margin-left:4px;letter-spacing:0}
.price-features{margin-top:20px;display:grid;gap:11px;flex:1}
.price-features li{display:flex;gap:10px;font-size:14.5px;color:#3C4E61;align-items:flex-start}
.price-features .ok{color:var(--success);font-weight:700;flex-shrink:0}
.price-features .no{color:#B7C3CF;font-weight:700;flex-shrink:0}
.price-features li.off{color:#93A3B3}
.price-card .btn{margin-top:22px}

/* ============ Signup form ============ */
.signup-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start}
.signup-aside{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:30px;box-shadow:var(--shadow-1)}
.signup-aside h3{font-size:20px}
.signup-aside p{margin-top:12px;color:var(--muted);font-size:15px}
.aside-list{margin-top:20px;display:grid;gap:14px}
.aside-list li{display:flex;gap:12px;font-size:14.5px;color:#3C4E61}
.aside-list i{
  width:24px;height:24px;border-radius:8px;background:var(--brand-50);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;font-style:normal;flex-shrink:0;
}
.form-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:34px;box-shadow:var(--shadow-1)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:#2C3E50}
.field label em{font-style:normal;color:var(--accent-500);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-btn);
  border:1px solid var(--border);background:#FBFDFF;
  font-size:15px;color:var(--text);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field textarea{min-height:110px;resize:vertical}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--brand-100)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);background:#fff;box-shadow:0 0 0 4px rgba(28,111,168,.14);
}
.checkbox-row{display:flex;gap:11px;align-items:flex-start;font-size:14px;color:var(--muted)}
.checkbox-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand-600);flex-shrink:0}
.form-tip{
  display:none;margin-top:18px;padding:13px 16px;border-radius:var(--radius-btn);
  font-size:14px;background:#E8F7EE;color:#15803D;border:1px solid #BBE9CD;
}
.form-tip.show{display:block}
.form-actions{margin-top:26px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-hint{font-size:13.5px;color:var(--muted)}

/* ============ Posts ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.post-thumb{width:100%;height:170px;object-fit:cover}
.post-body{padding:22px;display:flex;flex-direction:column;flex:1}
.post-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);margin-bottom:12px}
.post-title{font-size:17px;line-height:1.5}
.post-card:hover .post-title{color:var(--brand-600)}
.post-excerpt{margin-top:11px;font-size:14.5px;color:var(--muted);flex:1}
.post-more{margin-top:16px;font-size:14px;font-weight:600;color:var(--brand-600)}
.empty-state{
  grid-column:1 / -1;text-align:center;padding:56px 24px;
  background:#fff;border:1px dashed var(--border);border-radius:var(--radius-card);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:18px;
  background:var(--brand-50);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;
}
.empty-state p{color:var(--muted);font-size:15px}
.empty-links{margin-top:18px;display:flex;justify-content:center;gap:12px;flex-wrap:wrap}

/* ============ FAQ ============ */
.faq-list{max-width:900px;margin:0 auto;border-top:1px solid var(--border)}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item summary{
  display:flex;justify-content:space-between;align-items:center;gap:18px;
  padding:22px 4px;font-size:16.5px;font-weight:600;cursor:pointer;list-style:none;
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-600)}
.faq-plus{
  width:26px;height:26px;border-radius:50%;background:var(--brand-50);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;
  transition:transform var(--ease),background var(--ease);flex-shrink:0;
}
.faq-item[open] .faq-plus{transform:rotate(45deg);background:var(--accent-500);color:#fff}
.faq-answer{padding:0 4px 24px;color:var(--muted);font-size:15px;line-height:1.85;max-width:820px}

/* ============ CTA band ============ */
.cta-band{
  background:var(--brand-700);color:#fff;border-radius:22px;
  padding:54px 48px;display:grid;grid-template-columns:1.4fr auto;gap:32px;align-items:center;
  box-shadow:var(--shadow-2);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);color:#fff}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.78);font-size:15.5px;max-width:640px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7)}

/* ============ Footer ============ */
.site-footer{background:#0F2233;color:#C6D3DF;margin-top:0;padding:66px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--brand-500);box-shadow:none}
.footer-brand span{font-size:17px;font-weight:700;color:#fff}
.footer-desc{font-size:14.5px;line-height:1.85;color:#93A7B9;max-width:340px}
.footer-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.6px;margin-bottom:16px}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:14.5px;color:#A9BBCB;transition:color var(--ease)}
.footer-links a:hover{color:#fff}
.footer-contact{display:grid;gap:12px;font-size:14.5px;color:#A9BBCB}
.footer-contact b{color:#fff;font-weight:600;display:block;font-size:13px;letter-spacing:.4px}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#7E93A6;
}

/* ============ Responsive ============ */
@media (max-width:1100px){
  .hero-grid{gap:40px}
  .speaker-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .mega-wrap{display:none}
  .hamburger{display:flex}
  .nav-wrap{justify-content:space-between}
  .nav-actions .btn-accent{padding:10px 18px;font-size:14.5px}
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .hero-copy{max-width:none}
  .hero-visual img{height:340px}
  .info-card{position:static;width:100%;margin-top:18px}
  .signup-wrap{grid-template-columns:1fr;gap:32px}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:40px 28px}
  .section{padding:66px 0}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .section{padding:54px 0}
  .hero{padding:44px 0 56px}
  .hero h1{font-size:29px}
  .hero-sub{font-size:15.5px}
  .hero-cta .btn{width:100%}
  .trust-bar{grid-template-columns:1fr 1fr;gap:12px}
  .stats-grid{grid-template-columns:1fr}
  .speaker-grid{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:24px}
  .tl-item{grid-template-columns:1fr;gap:10px;padding-left:24px}
  .tl-time{font-size:15px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .nav-actions .btn-accent{display:none}
  .brand-text{font-size:15.5px}
}

/* roulang page: article */
:root{
  --brand-50:#EAF4FB;
  --brand-100:#D6EAF7;
  --brand-500:#1C6FA8;
  --brand-600:#155A8A;
  --brand-700:#0F466B;
  --accent-500:#F97316;
  --accent-600:#EA580C;
  --success:#16A34A;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --text:#102033;
  --muted:#5B6B7C;
  --border:#DCE6EF;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-sm:0 2px 8px rgba(15,42,66,.05);
  --shadow:0 10px 30px rgba(15,42,66,.08);
  --shadow-lg:0 16px 40px rgba(15,42,66,.14);
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--text)}
p{margin:0}
:focus-visible{outline:3px solid rgba(28,111,168,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand-500);color:#fff;box-shadow:0 6px 18px rgba(28,111,168,.22)}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-2px);box-shadow:0 12px 26px rgba(28,111,168,.3)}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:0 6px 18px rgba(249,115,22,.26)}
.btn-accent:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:0 12px 26px rgba(234,88,12,.32)}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--border)}
.btn-ghost:hover{background:var(--brand-50);border-color:var(--brand-100);transform:translateY(-2px)}
.btn-block{width:100%}
.btn-sm{padding:9px 16px;font-size:14px}

/* ============ 徽标 / 标签 ============ */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:13px;font-weight:600;line-height:1.6;
}
.chip-brand{background:var(--brand-50);color:var(--brand-600)}
.chip-accent{background:#FFF1E6;color:var(--accent-600)}
.chip-success{background:#E9F8EF;color:#15803D}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:22px;height:76px}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap;color:var(--text)}
.logo:hover{color:var(--brand-600)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-700));
  color:#fff;font-size:14px;font-weight:800;letter-spacing:.5px;
}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;padding:9px 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:#2C3E50;
}
.nav-link:hover{background:var(--brand-50);color:var(--brand-600)}
.nav-link.active{background:var(--brand-50);color:var(--brand-600);font-weight:700}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}

/* Mega 面板 */
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:10px;font-size:15px;font-weight:500;color:#2C3E50;
  transition:background-color .2s ease,color .2s ease;
}
.mega-trigger:hover{background:var(--brand-50);color:var(--brand-600)}
.mega-trigger svg{transition:transform .2s ease}
.mega:hover .mega-trigger svg,.mega.open .mega-trigger svg{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:min(680px,88vw);
  background:#fff;border:1px solid var(--border);border-radius:16px;
  box-shadow:var(--shadow-lg);padding:24px;
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.mega:hover .mega-panel,.mega.open .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;letter-spacing:.06em;color:var(--muted);font-weight:600;margin-bottom:12px;text-transform:uppercase}
.mega-col a{display:block;padding:7px 0;font-size:14px;color:#2C3E50;border-radius:8px}
.mega-col a:hover{color:var(--brand-600)}
.mega-entry{
  grid-column:1 / -1;display:flex;align-items:center;gap:16px;
  background:var(--brand-50);border-radius:12px;padding:16px;
}
.mega-entry img{width:84px;height:56px;object-fit:cover;border-radius:10px}
.mega-entry strong{display:block;font-size:15px;margin-bottom:2px}
.mega-entry span{font-size:13px;color:var(--muted)}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  align-items:center;justify-content:center;border:1px solid var(--border);background:#fff;
}
.nav-toggle:hover{background:var(--brand-50)}
.mobile-drawer{display:none}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--border)}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding:14px 0;flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand-600)}
.crumb .sep{color:#B7C6D4}
.crumb .current{color:var(--text);font-weight:600;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头部 ============ */
.article-hero{
  background:linear-gradient(180deg,#FFFFFF 0%,var(--brand-50) 100%);
  border-bottom:1px solid var(--border);
  padding:40px 0 46px;
}
.article-hero .kicker{display:flex;align-items:center;gap:10px;margin-bottom:16px;flex-wrap:wrap}
.article-title{font-size:clamp(26px,3.4vw,42px);line-height:1.32;letter-spacing:-.01em;max-width:920px}
.meta-row{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:22px;font-size:14px;color:var(--muted)}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-dot{width:5px;height:5px;border-radius:50%;background:#C3D2DF}

/* ============ 正文布局 ============ */
.article-section{padding:56px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 324px;gap:36px;align-items:start}
.article-main{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);box-shadow:var(--shadow);
  padding:48px 52px;max-width:820px;min-width:0;
}
.article-main > *:first-child{margin-top:0 !important}
.article-main h2{
  font-size:clamp(21px,2.2vw,26px);margin:44px 0 16px;
  padding-left:16px;border-left:4px solid var(--brand-500);
}
.article-main h3{font-size:20px;margin:32px 0 12px}
.article-main h4{font-size:17px;margin:26px 0 10px}
.article-main p{margin:0 0 18px;color:#26384C;font-size:17px;line-height:1.85}
.article-main ul,.article-main ol{margin:0 0 20px;padding-left:24px;color:#26384C}
.article-main li{margin-bottom:9px;font-size:17px;line-height:1.8}
.article-main li::marker{color:var(--brand-500)}
.article-main blockquote{
  margin:28px 0;padding:18px 24px;background:var(--brand-50);
  border-left:4px solid var(--brand-500);border-radius:0 12px 12px 0;color:#1C3B55;
}
.article-main blockquote p:last-child{margin-bottom:0}
.article-main img{border-radius:12px;margin:26px auto;width:100%;height:auto}
.article-main a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-main a:hover{color:var(--accent-600)}
.article-main table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-main th,.article-main td{border:1px solid var(--border);padding:11px 14px;text-align:left}
.article-main th{background:var(--brand-50);font-weight:700}
.article-main code{background:#EEF4F9;padding:2px 7px;border-radius:6px;font-size:14px;color:#155A8A}
.article-main hr{border:none;border-top:1px solid var(--border);margin:36px 0}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;
  border:1px dashed var(--border);border-radius:var(--radius-card);max-width:820px;
}
.empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;
  background:var(--brand-50);color:var(--brand-500);
  display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:800;
}
.empty-state h2{font-size:22px;margin-bottom:10px;border:none;padding:0}
.empty-state p{color:var(--muted);margin-bottom:22px;font-size:15px}

/* ============ 侧栏 ============ */
.article-side{display:flex;flex-direction:column;gap:22px;position:sticky;top:100px}
.side-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:22px;
}
.side-title{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand-500)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow-y:auto}
.toc-link{
  display:block;padding:8px 10px;font-size:14px;color:var(--muted);
  border-radius:8px;border-left:2px solid transparent;line-height:1.6;
}
.toc-link:hover{background:var(--brand-50);color:var(--brand-600);border-left-color:var(--brand-500)}
.side-links{display:flex;flex-direction:column;gap:2px}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 10px;border-radius:8px;font-size:14px;color:#2C3E50}
.side-links a:hover{background:var(--brand-50);color:var(--brand-600)}
.side-links a span{color:#B7C6D4;font-size:12px}
.side-cta{background:linear-gradient(160deg,var(--brand-600),var(--brand-700));color:#fff;border:none}
.side-cta .side-title{color:#fff}
.side-cta .side-title::before{background:var(--accent-500)}
.side-cta p{font-size:14px;color:#CFE2F0;line-height:1.8;margin-bottom:16px}
.side-meta{display:flex;flex-direction:column;gap:10px;font-size:14px}
.side-meta div{display:flex;justify-content:space-between;gap:12px;color:var(--muted)}
.side-meta b{color:var(--text);font-weight:600}

/* ============ 翻页 / 返回 ============ */
.post-nav{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:32px;flex-wrap:wrap}
.post-nav a{font-size:14px;color:var(--brand-600);font-weight:600}
.post-nav a:hover{color:var(--accent-600)}

/* ============ 相关推荐 ============ */
.related-section{padding:0 0 72px}
.section-head{margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,30px)}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.post-card figure{margin:0;aspect-ratio:16/9;overflow:hidden;background:var(--brand-50)}
.post-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover img{transform:scale(1.04)}
.post-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-card-body h3{font-size:17px;line-height:1.5;margin-bottom:10px}
.post-card:hover h3{color:var(--brand-600)}
.post-card-body p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:16px;flex:1}
.post-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);flex-wrap:wrap}

/* ============ 报名 CTA ============ */
.cta-section{padding:0 0 80px}
.cta-box{
  position:relative;border-radius:20px;overflow:hidden;
  background-image:linear-gradient(120deg,rgba(15,70,107,.94),rgba(21,90,138,.86)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;color:#fff;
  padding:48px 52px;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
}
.cta-box h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-box p{color:#D3E5F2;font-size:15px;line-height:1.85;max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn-ghost{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.4)}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.2);border-color:#fff}
.cta-points{display:flex;gap:20px;flex-wrap:wrap;margin-top:18px;font-size:13px;color:#BFD8EA}
.cta-points span{display:inline-flex;align-items:center;gap:6px}

/* ============ 页脚 ============ */
.site-footer{background:#0F2233;color:#C7D5E2;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:42px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.9;color:#9FB3C5;max-width:380px}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-links a{color:#9FB3C5}
.footer-links a:hover{color:#fff}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14px;color:#9FB3C5}
.footer-contact b{color:#fff;font-weight:500;margin-right:6px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#7D92A6;
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:26px}
  .article-main{padding:40px 38px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .header-actions .btn-accent{display:none}
  .mega{display:none}
  .nav-toggle{display:inline-flex}
  .mobile-drawer{
    display:block;max-height:0;overflow:hidden;
    transition:max-height .32s ease,border-color .32s ease;
    border-top:1px solid transparent;background:#fff;
  }
  .mobile-drawer.open{max-height:560px;border-top-color:var(--border);overflow-y:auto}
  .drawer-inner{padding:14px 24px 22px;display:flex;flex-direction:column;gap:4px}
  .drawer-link{padding:12px 14px;border-radius:10px;font-size:15px;font-weight:500;color:#2C3E50}
  .drawer-link:hover{background:var(--brand-50);color:var(--brand-600)}
  .drawer-link.active{background:var(--brand-50);color:var(--brand-600);font-weight:700}
  .drawer-cta{margin-top:12px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;order:2;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 280px}
  .cta-box{grid-template-columns:1fr;padding:40px 34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:66px}
  .logo{font-size:16px}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:13px}
  .article-hero{padding:26px 0 32px}
  .article-section{padding:34px 0 48px}
  .article-main{padding:26px 20px;border-radius:14px}
  .article-main p,.article-main li{font-size:16px}
  .article-main h2{margin-top:34px}
  .crumb .current{max-width:100%;white-space:normal}
  .meta-row{gap:14px;font-size:13px}
  .card-grid{grid-template-columns:1fr}
  .related-section{padding-bottom:48px}
  .cta-section{padding-bottom:52px}
  .cta-box{padding:32px 22px;border-radius:16px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:30px}
  .footer-bottom{justify-content:flex-start}
  .post-nav{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:520px){
  .article-title{font-size:24px}
  .btn{padding:11px 18px;font-size:14px}
  .side-card{padding:18px}
}

/* roulang page: category1 */
:root{
  --brand-50:#EAF4FB;
  --brand-100:#D6EAF7;
  --brand-200:#B7D9EE;
  --brand-500:#1C6FA8;
  --brand-600:#155A8A;
  --brand-700:#0F466B;
  --accent-500:#F97316;
  --accent-600:#EA580C;
  --success:#16A34A;
  --success-soft:#E7F6EC;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --text:#102033;
  --muted:#5B6B7C;
  --border:#DCE6EF;
  --slate-900:#1B2733;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-input:10px;
  --shadow-sm:0 4px 14px rgba(15,42,66,.06);
  --shadow:0 10px 30px rgba(15,42,66,.08);
  --shadow-lg:0 16px 40px rgba(15,42,66,.14);
  --ring:0 0 0 3px rgba(28,111,168,.28);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:8px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-600);background:var(--brand-50);
  border:1px solid var(--brand-100);border-radius:999px;padding:5px 14px;
  margin-bottom:16px;
}
.section-head h2{font-size:32px;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16.5px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 12px rgba(15,42,66,.05);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:74px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand-500),var(--brand-700));
  color:#fff;font-weight:800;font-size:15px;letter-spacing:.02em;
  box-shadow:var(--shadow-sm);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:17px;font-weight:800;color:var(--text);}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.06em;}

.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:10px;
  font-size:15px;font-weight:600;color:#33475B;
  transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--brand-600);background:var(--brand-50);}
.nav-link.active{color:var(--brand-700);background:var(--brand-50);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand-500);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:10px;border:1px solid var(--border);
  background:#fff;color:#33475B;font-size:15px;font-weight:600;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.mega-trigger:hover{border-color:var(--brand-200);color:var(--brand-600);background:var(--brand-50);}
.mega-trigger .caret{transition:transform .2s ease;}
.mega-wrap.open .mega-trigger .caret{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);
  width:660px;padding:22px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:16px;box-shadow:var(--shadow-lg);
  display:grid;grid-template-columns:1.1fr 1.1fr 1fr;gap:20px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--muted);margin-bottom:12px;}
.mega-list a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:8px 10px;border-radius:10px;font-size:14.5px;color:#33475B;
  transition:background-color .2s ease,color .2s ease;
}
.mega-list a:hover{background:var(--brand-50);color:var(--brand-700);}
.mega-list .count{
  font-size:12px;font-weight:700;color:var(--brand-600);
  background:var(--brand-50);border-radius:999px;padding:1px 9px;
}
.mega-card{
  background:var(--brand-50);border:1px solid var(--brand-100);
  border-radius:14px;padding:16px;display:block;
}
.mega-card b{display:block;font-size:15px;color:var(--brand-700);}
.mega-card span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted);line-height:1.6;}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);background:#fff;place-items:center;
}
.nav-toggle span{display:block;width:20px;height:2px;background:#33475B;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:#33475B;border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.mobile-drawer{
  display:none;border-top:1px solid var(--border);background:#fff;
  padding:16px 24px 24px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:block;padding:12px 4px;font-size:16px;font-weight:600;color:#33475B;
  border-bottom:1px dashed var(--border);
}
.mobile-drawer a.active{color:var(--brand-600);}
.mobile-drawer .drawer-cta{margin-top:18px;}
.mobile-drawer .drawer-cta .btn{width:100%;justify-content:center;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-500);color:#fff;box-shadow:0 6px 18px rgba(28,111,168,.24);}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-2px);box-shadow:0 12px 26px rgba(28,111,168,.30);}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:0 6px 18px rgba(249,115,22,.26);}
.btn-accent:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:0 12px 26px rgba(234,88,12,.32);}
.btn-outline{background:#fff;color:var(--brand-700);border:1px solid var(--brand-200);}
.btn-outline:hover{background:var(--brand-50);border-color:var(--brand-500);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--brand-600);padding:10px 6px;}
.btn-ghost:hover{color:var(--brand-700);}
.btn:active{transform:translateY(0);}
.btn-lg{padding:15px 28px;font-size:16px;}

/* ---------- badges / chips ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:700;border-radius:999px;padding:4px 12px;
}
.badge-brand{background:var(--brand-50);color:var(--brand-700);border:1px solid var(--brand-100);}
.badge-accent{background:#FFF1E6;color:var(--accent-600);border:1px solid #FBD9BD;}
.badge-success{background:var(--success-soft);color:#15803D;border:1px solid #C7EBD4;}
.badge-muted{background:#F1F5F9;color:var(--muted);border:1px solid var(--border);}

.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--border);
  font-size:14px;font-weight:600;color:#3C5065;
  transition:all .18s ease;
}
.chip:hover{border-color:var(--brand-200);color:var(--brand-600);background:var(--brand-50);}
.chip.active{background:var(--brand-500);border-color:var(--brand-500);color:#fff;box-shadow:0 6px 16px rgba(28,111,168,.24);}
.chip .num{font-size:12.5px;opacity:.8;}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:#fff;border-bottom:1px solid var(--border);
}
.hero-grid{
  display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;
  padding:72px 0 64px;
}
.hero h1{font-size:46px;line-height:1.22;margin-top:8px;}
.hero h1 .hl{color:var(--brand-600);}
.hero-sub{margin-top:20px;font-size:17.5px;color:var(--muted);max-width:600px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:24px;color:#3C5065;font-size:14.5px;}
.hero-meta div{display:flex;align-items:center;gap:8px;}
.hero-meta b{color:var(--text);font-weight:700;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-trust{
  margin-top:36px;padding-top:22px;border-top:1px dashed var(--border);
  display:flex;flex-wrap:wrap;gap:12px 28px;color:var(--muted);font-size:14px;
}
.hero-trust span{display:flex;align-items:center;gap:8px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;height:430px;object-fit:cover;border-radius:20px;
  box-shadow:var(--shadow-lg);
}
.hero-info-card{
  position:absolute;left:-18px;bottom:-26px;
  background:#fff;border:1px solid var(--border);border-radius:16px;
  box-shadow:var(--shadow-lg);padding:18px 20px;width:270px;
}
.hero-info-card b{display:block;font-size:14px;color:var(--muted);font-weight:600;}
.hero-info-card strong{display:block;font-size:20px;color:var(--text);margin-top:4px;}
.hero-info-card .bar{
  margin-top:12px;height:6px;border-radius:999px;background:var(--brand-100);overflow:hidden;
}
.hero-info-card .bar i{display:block;height:100%;width:72%;background:var(--brand-500);border-radius:999px;}

/* ---------- stat strip ---------- */
.stat-strip{
  background:linear-gradient(180deg,#FBFDFF, #F2F8FC);
  border-bottom:1px solid var(--border);
  padding:36px 0;
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat-card{
  background:#fff;border:1px solid var(--border);border-radius:16px;
  padding:22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.stat-card .num{font-size:36px;font-weight:800;color:var(--brand-600);line-height:1.1;letter-spacing:-.02em;}
.stat-card .num small{font-size:16px;font-weight:700;color:var(--muted);margin-left:4px;}
.stat-card .label{margin-top:8px;font-size:14.5px;color:var(--muted);}

/* ---------- tabs ---------- */
.tab-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.tab-btn{
  padding:10px 20px;border-radius:999px;border:1px solid var(--border);
  background:#fff;font-size:14.5px;font-weight:700;color:#3C5065;
  transition:all .18s ease;
}
.tab-btn:hover{border-color:var(--brand-200);color:var(--brand-600);}
.tab-btn.active{background:var(--brand-700);border-color:var(--brand-700);color:#fff;box-shadow:0 8px 20px rgba(15,70,107,.22);}
.tab-panel{display:none;}
.tab-panel.active{display:block;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:8px;}
.timeline::before{
  content:"";position:absolute;left:96px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--success),var(--brand-200),var(--border));
}
.timeline-item{
  position:relative;display:grid;grid-template-columns:88px 1fr;gap:32px;
  padding:16px 0 22px;
}
.timeline-time{font-size:15px;font-weight:800;color:var(--brand-700);padding-top:18px;text-align:right;}
.timeline-node{
  position:absolute;left:89px;top:26px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--brand-200);transform:translateX(-50%);
}
.timeline-item.done .timeline-node{border-color:var(--success);background:var(--success);}
.timeline-item.live .timeline-node{border-color:var(--accent-500);background:var(--accent-500);box-shadow:0 0 0 6px rgba(249,115,22,.16);}
.timeline-card{
  background:#fff;border:1px solid var(--border);border-radius:16px;
  padding:20px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.timeline-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--brand-200);}
.timeline-card h3{font-size:19px;}
.timeline-card p{margin-top:8px;color:var(--muted);font-size:15px;}
.timeline-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* ---------- event cards ---------- */
.event-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.event-card{
  background:#fff;border:1px solid var(--border);border-radius:16px;
  overflow:hidden;box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.event-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.event-thumb{position:relative;}
.event-thumb img{width:100%;height:196px;object-fit:cover;border-radius:0;}
.event-thumb .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--brand-700);border:1px solid var(--brand-100);}
.event-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.event-body h3{font-size:18.5px;}
.event-body p{margin-top:10px;color:var(--muted);font-size:15px;flex:1;}
.event-meta{
  display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:16px;
  font-size:13.5px;color:var(--muted);
}
.event-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--border);
}
.event-foot .price{font-size:19px;font-weight:800;color:var(--accent-600);}

/* ---------- rank list ---------- */
.rank-panel{
  background:#fff;border:1px solid var(--border);border-radius:20px;
  padding:26px;box-shadow:var(--shadow-sm);
}
.rank-item{
  display:flex;align-items:center;gap:16px;padding:14px 0;
  border-bottom:1px dashed var(--border);
}
.rank-item:last-child{border-bottom:0;}
.rank-no{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;
  display:grid;place-items:center;font-weight:800;font-size:14px;
  background:var(--brand-50);color:var(--brand-600);
}
.rank-item.top .rank-no{background:var(--accent-500);color:#fff;}
.rank-main{flex:1;min-width:0;}
.rank-main b{font-size:15.5px;display:block;}
.rank-main span{font-size:13.5px;color:var(--muted);}
.rank-count{font-size:13.5px;font-weight:700;color:var(--brand-600);white-space:nowrap;}

/* ---------- proof ---------- */
.proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.proof-card{
  background:#fff;border:1px solid var(--border);border-radius:16px;
  padding:24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.proof-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.proof-top{display:flex;align-items:center;gap:12px;}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:0 0 auto;
  display:grid;place-items:center;font-weight:800;color:#fff;font-size:15px;
  background:linear-gradient(140deg,var(--brand-500),var(--brand-700));
}
.proof-top b{display:block;font-size:15.5px;}
.proof-top span{font-size:13px;color:var(--muted);}
.proof-card p{margin-top:14px;color:#3C5065;font-size:15px;}

/* ---------- faq ---------- */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  margin-bottom:14px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--brand-200);box-shadow:var(--shadow-sm);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16.5px;font-weight:700;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-plus{
  width:26px;height:26px;flex:0 0 auto;border-radius:8px;
  background:var(--brand-50);color:var(--brand-600);
  display:grid;place-items:center;font-size:18px;font-weight:700;line-height:1;
  transition:transform .2s ease,background-color .2s ease,color .2s ease;
}
.faq-item[open] .faq-plus{transform:rotate(45deg);background:var(--brand-500);color:#fff;}
.faq-answer{padding:0 22px 22px;color:var(--muted);font-size:15.5px;line-height:1.8;}

/* ---------- cta form ---------- */
.cta-block{
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  border-radius:24px;padding:48px;color:#fff;
  display:grid;grid-template-columns:1fr 1.05fr;gap:48px;
  box-shadow:var(--shadow-lg);
}
.cta-block h2{font-size:32px;color:#fff;}
.cta-block .cta-desc{margin-top:16px;color:rgba(255,255,255,.86);font-size:16px;}
.cta-list{margin-top:24px;display:grid;gap:12px;}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.92);}
.cta-list .dot{
  width:8px;height:8px;border-radius:50%;background:var(--accent-500);flex:0 0 auto;margin-top:9px;
}
.cta-card{background:#fff;border-radius:18px;padding:28px;color:var(--text);box-shadow:var(--shadow-lg);}
.cta-card h3{font-size:20px;}
.cta-card .hint{margin-top:8px;font-size:14px;color:var(--muted);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:700;color:#33475B;}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border-radius:var(--radius-input);
  border:1px solid var(--border);background:#FCFDFE;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);background:#fff;
  box-shadow:var(--ring);
}
.field textarea{min-height:88px;resize:vertical;}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);line-height:1.6;}
.check-line input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand-500);}
.form-msg{
  display:none;margin-top:14px;border-radius:10px;padding:12px 14px;font-size:14px;
}
.form-msg.ok{display:block;background:var(--success-soft);color:#15803D;border:1px solid #C7EBD4;}
.form-msg.err{display:block;background:#FDECEC;color:#B42318;border:1px solid #F7CFCF;}
.form-submit{width:100%;justify-content:center;margin-top:18px;}

/* ---------- footer ---------- */
.site-footer{background:var(--slate-900);color:#CBD8E4;padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:800;font-size:17px;}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--brand-500),var(--brand-700));}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.8;color:#9FB3C6;max-width:340px;}
.footer-title{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14.5px;color:#9FB3C6;transition:color .2s ease,transform .2s ease;display:inline-block;}
.footer-links a:hover{color:#7FC4F0;transform:translateX(3px);}
.footer-contact{display:grid;gap:12px;font-size:14.5px;color:#9FB3C6;}
.footer-contact b{color:#fff;font-weight:700;margin-right:6px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13.5px;color:#8CA0B4;
}

/* ---------- breadcrumb ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);}
.crumb a{color:var(--brand-600);font-weight:600;}
.crumb .sep{color:#B8C7D6;}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .hero h1{font-size:40px;}
  .event-grid{grid-template-columns:repeat(2,1fr);}
  .proof-grid{grid-template-columns:repeat(2,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-block{grid-template-columns:1fr;padding:36px;}
}
@media (max-width:980px){
  .main-nav{display:none;}
  .mega-wrap{display:none;}
  .nav-toggle{display:grid;}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:52px 0 48px;}
  .hero-visual img{height:320px;}
  .hero-info-card{position:static;width:100%;margin-top:18px;box-shadow:var(--shadow-sm);}
  .section{padding:72px 0;}
  .timeline::before{left:12px;}
  .timeline-item{grid-template-columns:1fr;gap:10px;padding-left:34px;}
  .timeline-time{text-align:left;padding-top:0;}
  .timeline-node{left:12px;top:22px;}
}
@media (max-width:760px){
  .container{padding:0 18px;}
  .header-inner{gap:12px;}
  .header-actions .btn-accent{display:none;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .section-head h2{font-size:26px;}
  .cta-block h2{font-size:26px;}
  .event-grid,.proof-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:16px;}
  .stat-card .num{font-size:30px;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .section-sm{padding:44px 0;}
  .hero-actions .btn{width:100%;justify-content:center;}
  .rank-panel{padding:20px;}
}
@media (max-width:520px){
  .brand-text em{display:none;}
  .timeline-card{padding:16px;}
  .event-thumb img{height:172px;}
  .cta-card{padding:20px;}
}

/* roulang page: category2 */
:root{
    --brand-50:#EAF4FB;
    --brand-100:#D6EAF7;
    --brand-500:#1C6FA8;
    --brand-600:#155A8A;
    --brand-700:#0F466B;
    --accent-500:#F97316;
    --accent-600:#EA580C;
    --success:#16A34A;
    --bg:#F6F9FC;
    --surface:#FFFFFF;
    --text:#102033;
    --muted:#5B6B7C;
    --border:#DCE6EF;
    --radius-card:16px;
    --radius-btn:10px;
    --shadow-card:0 10px 30px rgba(15,42,66,.08);
    --shadow-hover:0 16px 40px rgba(15,42,66,.14);
    --ring:0 0 0 3px rgba(28,111,168,.28);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--text);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
  button{font:inherit;cursor:pointer;}
  h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:none;box-shadow:var(--ring);border-radius:8px;}
  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(255,255,255,.96);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--border);
  }
  .header-inner{display:flex;align-items:center;gap:20px;height:76px;position:relative;}
  .brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--brand-700);white-space:nowrap;}
  .brand-mark{
    display:inline-flex;align-items:center;justify-content:center;
    width:38px;height:38px;border-radius:11px;
    background:linear-gradient(135deg,var(--brand-500),var(--brand-700));
    color:#fff;font-size:14px;font-weight:700;letter-spacing:.5px;
    box-shadow:0 6px 16px rgba(15,70,107,.28);
  }
  .main-nav{display:flex;align-items:center;gap:4px;margin-left:6px;}
  .nav-link{
    padding:9px 14px;border-radius:10px;font-size:15px;color:var(--text);
    transition:background-color .2s ease,color .2s ease,transform .2s ease;
  }
  .nav-link:hover{background:var(--brand-50);color:var(--brand-600);}
  .nav-link.active{background:var(--brand-50);color:var(--brand-700);font-weight:600;}
  .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
  .nav-toggle{
    display:none;width:42px;height:42px;border-radius:10px;
    border:1px solid var(--border);background:#fff;color:var(--brand-700);
    align-items:center;justify-content:center;
  }
  .nav-toggle svg{width:20px;height:20px;}

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:11px 22px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;border:1px solid transparent;
    transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--brand-500);color:#fff;box-shadow:0 8px 20px rgba(28,111,168,.24);}
  .btn-primary:hover{background:var(--brand-600);transform:translateY(-2px);box-shadow:0 14px 28px rgba(28,111,168,.3);}
  .btn-accent{background:var(--accent-500);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.26);}
  .btn-accent:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:0 14px 30px rgba(249,115,22,.32);}
  .btn-outline{background:#fff;color:var(--brand-600);border-color:var(--border);}
  .btn-outline:hover{background:var(--brand-50);border-color:var(--brand-100);transform:translateY(-2px);}
  .btn-ghost{background:transparent;color:var(--brand-600);padding:11px 14px;}
  .btn-ghost:hover{background:var(--brand-50);}
  .btn-block{width:100%;}

  /* ---------- Badges / tags ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;font-size:13px;font-weight:600;line-height:1.6;
  }
  .badge-accent{background:#FFF2E7;color:var(--accent-600);}
  .badge-brand{background:var(--brand-50);color:var(--brand-700);}
  .badge-success{background:#E9F8EF;color:var(--success);}
  .tag{
    display:inline-block;padding:5px 12px;border-radius:999px;
    background:#fff;border:1px solid var(--border);color:var(--muted);font-size:13px;
  }
  .tag:hover{border-color:var(--brand-100);color:var(--brand-600);background:var(--brand-50);}

  /* ---------- Hero ---------- */
  .page-hero{
    position:relative;
    padding:64px 0 76px;
    background-image:linear-gradient(115deg,rgba(246,249,252,.97) 0%,rgba(234,244,251,.92) 46%,rgba(214,234,247,.86) 100%),url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center;
    border-bottom:1px solid var(--border);
    overflow:hidden;
  }
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:24px;}
  .breadcrumb a:hover{color:var(--brand-600);}
  .breadcrumb .sep{color:#B6C4D2;}
  .breadcrumb .current{color:var(--text);font-weight:600;}
  .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
  .hero-copy h1{font-size:clamp(30px,4vw,46px);margin:16px 0 18px;color:var(--brand-700);}
  .hero-sub{font-size:17px;color:var(--muted);max-width:600px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 28px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
  .hero-media{position:relative;}
  .hero-media img{
    width:100%;height:380px;object-fit:cover;
    border-radius:20px;box-shadow:var(--shadow-hover);
  }
  .hero-info-card{
    position:absolute;left:22px;bottom:-26px;right:22px;
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);padding:18px 20px;
    display:grid;grid-template-columns:repeat(3,1fr);gap:14px;
  }
  .hero-info-card .k{font-size:12px;color:var(--muted);}
  .hero-info-card .v{font-size:16px;font-weight:700;color:var(--brand-700);}
  .trust-bar{
    margin-top:72px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    padding:22px 26px;box-shadow:var(--shadow-card);
  }
  .trust-item{display:flex;flex-direction:column;gap:2px;}
  .trust-item b{font-size:22px;color:var(--brand-600);}
  .trust-item span{font-size:13px;color:var(--muted);}

  /* ---------- Section base ---------- */
  .section{padding:88px 0;}
  .section-tight{padding:64px 0;}
  .section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
  .section-head{max-width:720px;margin-bottom:44px;}
  .section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
  .section-head h2{font-size:clamp(24px,3vw,34px);color:var(--brand-700);margin:12px 0 12px;}
  .section-head p{color:var(--muted);font-size:16px;}

  /* ---------- Grids ---------- */
  .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
  .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:32px;}

  /* ---------- Cards ---------- */
  .card{
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);overflow:hidden;
    transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    display:flex;flex-direction:column;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-100);}
  .card-media{width:100%;height:180px;object-fit:cover;}
  .card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .card-body h3{font-size:19px;color:var(--text);}
  .card-body p{color:var(--muted);font-size:15px;}
  .card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:6px;}
  .card-link{font-size:14px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:6px;}
  .card-link:hover{color:var(--accent-600);}
  .meta-line{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--muted);}

  /* ---------- Level cards ---------- */
  .level-card{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    padding:28px 24px;box-shadow:var(--shadow-card);
    position:relative;overflow:hidden;
    transition:transform .22s ease,box-shadow .22s ease;
  }
  .level-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
  .level-card::before{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:var(--brand-100);}
  .level-card.hot::before{background:linear-gradient(90deg,var(--accent-500),var(--brand-500));}
  .level-card h3{font-size:21px;margin-bottom:6px;color:var(--brand-700);}
  .level-card .price{font-size:30px;font-weight:700;color:var(--accent-600);line-height:1.2;margin:14px 0 4px;}
  .level-card .price small{font-size:14px;color:var(--muted);font-weight:400;}
  .spec-list{margin:18px 0 22px;display:flex;flex-direction:column;gap:10px;}
  .spec-list li{display:flex;gap:10px;font-size:15px;color:var(--muted);}
  .spec-list li b{color:var(--text);font-weight:600;}
  .ico-check{color:var(--success);font-weight:700;}

  /* ---------- Timeline ---------- */
  .timeline{position:relative;padding-left:38px;}
  .timeline::before{content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;background:var(--border);}
  .timeline-item{position:relative;padding:0 0 30px 0;}
  .timeline-item:last-child{padding-bottom:0;}
  .timeline-item::before{
    content:"";position:absolute;left:-34px;top:7px;width:14px;height:14px;border-radius:50%;
    background:#fff;border:3px solid var(--border);
  }
  .timeline-item.done::before{border-color:var(--success);background:var(--success);}
  .timeline-item.doing::before{border-color:var(--accent-500);background:#fff;box-shadow:0 0 0 4px rgba(249,115,22,.16);}
  .timeline-title{font-size:17px;font-weight:700;margin-bottom:4px;}
  .timeline-item p{color:var(--muted);font-size:15px;}

  /* ---------- Coach cards ---------- */
  .coach-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .22s ease,box-shadow .22s ease;}
  .coach-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
  .coach-card img{height:220px;width:100%;object-fit:cover;}
  .coach-card .coach-body{padding:20px;}
  .coach-card h3{font-size:18px;}
  .coach-card .role{font-size:13px;color:var(--brand-600);font-weight:600;margin-top:2px;}
  .coach-card p{font-size:14px;color:var(--muted);margin-top:10px;}

  /* ---------- Quote cards ---------- */
  .quote-card{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    padding:26px;box-shadow:var(--shadow-card);
  }
  .quote-card p{font-size:15px;color:var(--muted);}
  .quote-user{display:flex;align-items:center;gap:12px;margin-top:18px;}
  .avatar{
    width:42px;height:42px;border-radius:50%;
    background:var(--brand-50);color:var(--brand-600);
    display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;
  }
  .quote-user b{display:block;font-size:14px;}
  .quote-user span{font-size:13px;color:var(--muted);}

  /* ---------- FAQ ---------- */
  .faq-list{display:flex;flex-direction:column;gap:14px;}
  .faq-item{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    padding:6px 22px;box-shadow:var(--shadow-card);
  }
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:16px 0;font-size:16px;font-weight:600;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item .plus{
    flex:none;width:26px;height:26px;border-radius:50%;
    background:var(--brand-50);color:var(--brand-600);
    display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
    transition:transform .25s ease,background-color .25s ease;
  }
  .faq-item[open] .plus{transform:rotate(45deg);background:var(--accent-500);color:#fff;}
  .faq-item .answer{padding:0 0 20px;color:var(--muted);font-size:15px;line-height:1.8;border-top:1px dashed var(--border);padding-top:16px;}

  /* ---------- CTA form ---------- */
  .cta-panel{
    background:#fff;border:1px solid var(--border);border-radius:20px;
    box-shadow:var(--shadow-hover);overflow:hidden;
    display:grid;grid-template-columns:1.05fr .95fr;
  }
  .cta-copy{padding:44px;background-image:linear-gradient(140deg,var(--brand-700),var(--brand-500));color:#fff;}
  .cta-copy h2{font-size:clamp(22px,3vw,30px);margin-bottom:14px;color:#fff;}
  .cta-copy p{color:rgba(255,255,255,.86);font-size:15px;}
  .cta-list{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
  .cta-list li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.92);}
  .cta-form{padding:40px;}
  .field{margin-bottom:18px;}
  .field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
  .field input,.field select,.field textarea{
    width:100%;padding:12px 14px;border-radius:var(--radius-btn);
    border:1px solid var(--border);background:#fff;color:var(--text);font-size:15px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--brand-500);box-shadow:var(--ring);
  }
  .check-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--muted);}
  .check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand-500);}
  .form-note{margin-top:14px;font-size:13px;color:var(--muted);}
  .form-alert{display:none;margin-bottom:16px;padding:12px 14px;border-radius:var(--radius-btn);font-size:14px;}
  .form-alert.ok{display:block;background:#E9F8EF;color:#146C3A;border:1px solid #BDE8CD;}

  /* ---------- Side info strip ---------- */
  .info-strip{
    display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
    background:var(--brand-700);border-radius:20px;padding:30px 34px;color:#fff;
  }
  .info-strip .k{font-size:13px;color:rgba(255,255,255,.72);}
  .info-strip .v{font-size:22px;font-weight:700;}

  /* ---------- Footer ---------- */
  .site-footer{background:#0F1D2B;color:#C7D3DF;margin-top:0;}
  .footer-grid{
    display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
    padding:64px 0 40px;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px;}
  .footer-desc{font-size:14px;color:#93A5B6;line-height:1.8;max-width:380px;}
  .footer-title{font-size:15px;color:#fff;margin-bottom:16px;}
  .footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;}
  .footer-links a{color:#A9B9C8;}
  .footer-links a:hover{color:#7FC1EA;}
  .footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#A9B9C8;}
  .footer-contact b{color:#fff;font-weight:600;margin-right:6px;}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    border-top:1px solid rgba(255,255,255,.1);padding:22px 0 30px;font-size:13px;color:#8296A8;
  }

  /* ---------- Responsive ---------- */
  @media (max-width:1080px){
    .hero-grid{grid-template-columns:1fr;gap:56px;}
    .hero-media img{height:320px;}
    .grid-4{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .cta-panel{grid-template-columns:1fr;}
  }
  @media (max-width:900px){
    .nav-toggle{display:inline-flex;}
    .main-nav{
      position:absolute;top:76px;left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;
      background:#fff;border-bottom:1px solid var(--border);padding:14px 24px 20px;margin-left:0;
      box-shadow:var(--shadow-hover);display:none;
    }
    .main-nav.open{display:flex;}
    .nav-link{padding:12px 14px;font-size:16px;}
    .header-actions .btn-ghost{display:none;}
  }
  @media (max-width:820px){
    .grid-3{grid-template-columns:1fr;}
    .grid-2{grid-template-columns:1fr;}
    .trust-bar{grid-template-columns:repeat(2,1fr);row-gap:18px;}
    .info-strip{grid-template-columns:repeat(2,1fr);row-gap:20px;}
  }
  @media (max-width:640px){
    .container{padding:0 18px;}
    .section{padding:56px 0;}
    .section-tight{padding:44px 0;}
    .page-hero{padding:40px 0 64px;}
    .grid-4{grid-template-columns:1fr;}
    .hero-info-card{position:static;margin-top:18px;grid-template-columns:repeat(3,1fr);}
    .hero-media img{height:250px;}
    .trust-bar{grid-template-columns:1fr 1fr;padding:20px;margin-top:56px;}
    .cta-copy,.cta-form{padding:28px 22px;}
    .footer-grid{grid-template-columns:1fr;padding:48px 0 30px;}
    .hero-actions .btn{width:100%;}
    .btn{padding:12px 18px;}
  }

/* roulang page: category3 */
:root{
    --brand-50:#EAF4FB;
    --brand-100:#D6EAF7;
    --brand-500:#1C6FA8;
    --brand-600:#155A8A;
    --brand-700:#0F466B;
    --accent-500:#F97316;
    --accent-600:#EA580C;
    --success:#16A34A;
    --bg:#F6F9FC;
    --surface:#FFFFFF;
    --text:#102033;
    --muted:#5B6B7C;
    --border:#DCE6EF;
    --radius-card:16px;
    --radius-btn:10px;
    --shadow-card:0 10px 30px rgba(15,42,66,.08);
    --shadow-hover:0 16px 40px rgba(15,42,66,.14);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
  h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
  p{margin:0;}
  button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:3px solid rgba(28,111,168,.45);outline-offset:2px;border-radius:6px;}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
  .section{padding:96px 0;}
  .section-sm{padding:64px 0;}
  .section-head{max-width:760px;margin-bottom:40px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    background:var(--brand-50);color:var(--brand-600);
    font-size:13px;font-weight:600;letter-spacing:.06em;
    padding:6px 14px;border-radius:999px;border:1px solid var(--brand-100);
  }
  .section-title{font-size:clamp(26px,3vw,34px);margin:16px 0 12px;}
  .section-sub{color:var(--muted);font-size:16.5px;line-height:1.8;}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.96);
    backdrop-filter:saturate(160%) blur(8px);
    border-bottom:1px solid var(--border);
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px;}
  .brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:18px;color:var(--brand-700);}
  .brand-mark{
    width:40px;height:40px;border-radius:12px;flex:0 0 auto;
    display:grid;place-items:center;
    background:linear-gradient(140deg,var(--brand-500),var(--brand-700));
    color:#fff;font-size:14px;font-weight:800;letter-spacing:.02em;
    box-shadow:0 8px 18px rgba(15,70,107,.25);
  }
  .brand-text small{display:block;font-size:11.5px;font-weight:500;color:var(--muted);letter-spacing:.08em;}
  .main-nav{display:flex;align-items:center;gap:4px;}
  .nav-link{
    position:relative;
    padding:10px 14px;border-radius:var(--radius-btn);
    font-size:15.5px;font-weight:500;color:var(--muted);
  }
  .nav-link:hover{color:var(--brand-600);background:var(--brand-50);}
  .nav-link.active{color:var(--brand-700);background:var(--brand-50);font-weight:700;}
  .nav-link.active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
    background:var(--accent-500);border-radius:2px;
  }
  .header-actions{display:flex;align-items:center;gap:12px;}

  .mega{position:relative;}
  .mega-btn{
    display:inline-flex;align-items:center;gap:8px;
    padding:10px 14px;border-radius:var(--radius-btn);
    border:1px solid var(--border);background:#fff;
    font-size:15px;font-weight:600;color:var(--brand-700);cursor:pointer;
  }
  .mega-btn:hover{border-color:var(--brand-100);background:var(--brand-50);}
  .mega-panel{
    position:absolute;right:0;top:calc(100% + 12px);
    width:640px;background:#fff;border:1px solid var(--border);
    border-radius:16px;box-shadow:var(--shadow-hover);padding:22px;
    display:grid;grid-template-columns:1.1fr 1.1fr .9fr;gap:22px;
    opacity:0;visibility:hidden;transform:translateY(-6px);
    transition:opacity .2s ease,transform .2s ease,visibility .2s;
  }
  .mega:hover .mega-panel,
  .mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
  .mega-col h4{font-size:13px;color:var(--muted);letter-spacing:.08em;font-weight:700;margin-bottom:12px;}
  .mega-col a{display:block;padding:7px 10px;border-radius:9px;font-size:14.5px;color:var(--text);}
  .mega-col a:hover{background:var(--brand-50);color:var(--brand-600);}
  .mega-card{
    background:var(--brand-50);border:1px solid var(--brand-100);border-radius:14px;padding:16px;
  }
  .mega-card b{display:block;color:var(--brand-700);margin-bottom:6px;font-size:15px;}
  .mega-card p{font-size:13.5px;color:var(--muted);line-height:1.7;margin-bottom:10px;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border-radius:var(--radius-btn);
    font-size:15.5px;font-weight:600;border:1px solid transparent;cursor:pointer;
    transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  }
  .btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 8px 18px rgba(249,115,22,.28);}
  .btn-primary:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:0 14px 26px rgba(234,88,12,.32);}
  .btn-secondary{background:#fff;border-color:var(--border);color:var(--brand-700);}
  .btn-secondary:hover{background:var(--brand-50);border-color:var(--brand-100);transform:translateY(-2px);}
  .btn-ghost{background:transparent;color:var(--brand-600);border-color:transparent;}
  .btn-ghost:hover{background:var(--brand-50);}
  .btn-block{width:100%;}
  .btn:active{transform:translateY(0);}

  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:var(--radius-btn);
    border:1px solid var(--border);background:#fff;cursor:pointer;
    align-items:center;justify-content:center;font-size:18px;color:var(--brand-700);
  }
  .mobile-drawer{
    display:none;border-top:1px solid var(--border);background:#fff;padding:16px 0 22px;
  }
  .mobile-drawer.open{display:block;}
  .mobile-drawer a{
    display:block;padding:12px 24px;font-size:16px;color:var(--text);font-weight:500;
  }
  .mobile-drawer a.active{color:var(--brand-700);font-weight:700;background:var(--brand-50);}
  .mobile-drawer .drawer-cta{padding:14px 24px 0;}

  /* ---------- Hero ---------- */
  .page-hero{
    position:relative;color:#fff;overflow:hidden;
    background:
      linear-gradient(104deg,rgba(9,42,66,.93) 0%,rgba(15,70,107,.86) 46%,rgba(21,90,138,.62) 100%),
      url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  }
  .page-hero .container{padding-top:84px;padding-bottom:84px;}
  .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
  .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
  .badge{
    display:inline-flex;align-items:center;gap:7px;
    padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
    background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);color:#fff;
  }
  .badge-accent{background:var(--accent-500);border-color:var(--accent-500);color:#fff;}
  .hero-title{font-size:clamp(30px,4.2vw,50px);line-height:1.22;margin-bottom:20px;}
  .hero-title em{font-style:normal;color:#FFD9B8;}
  .hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);max-width:600px;margin-bottom:30px;}
  .hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
  .hero-stats{display:flex;flex-wrap:wrap;gap:32px;}
  .hero-stats div b{display:block;font-size:24px;color:#fff;font-weight:800;}
  .hero-stats div span{font-size:13.5px;color:rgba(255,255,255,.72);}
  .hero-card{
    background:rgba(255,255,255,.97);color:var(--text);
    border-radius:var(--radius-card);padding:24px;box-shadow:0 24px 60px rgba(4,25,40,.35);
  }
  .hero-card h3{font-size:18px;margin-bottom:6px;color:var(--brand-700);}
  .hero-card > p{font-size:14px;color:var(--muted);margin-bottom:18px;}
  .hero-list li{
    display:flex;gap:12px;align-items:flex-start;
    padding:12px 0;border-bottom:1px dashed var(--border);font-size:14.5px;
  }
  .hero-list li:last-child{border-bottom:0;}
  .hero-list i{color:var(--brand-500);margin-top:4px;}
  .hero-list b{display:block;font-size:15px;color:var(--text);}
  .hero-list span{color:var(--muted);font-size:13.5px;}

  .trust-bar{
    background:#0C3A59;color:rgba(255,255,255,.82);
    padding:16px 0;font-size:14px;
  }
  .trust-bar .container{display:flex;flex-wrap:wrap;gap:12px 34px;align-items:center;justify-content:center;}
  .trust-bar i{color:#7FC4EE;margin-right:6px;}

  /* ---------- Cards / grids ---------- */
  .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
  .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}

  .card{
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
    padding:26px;box-shadow:var(--shadow-card);
    transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    display:flex;flex-direction:column;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-100);}
  .card-icon{
    width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
    background:var(--brand-50);color:var(--brand-600);font-size:19px;margin-bottom:16px;
  }
  .card h3{font-size:19px;margin-bottom:10px;}
  .card p{color:var(--muted);font-size:15px;line-height:1.8;}
  .card-media{border-radius:12px;overflow:hidden;margin-bottom:18px;aspect-ratio:16/9;background:var(--brand-50);}
  .card-media img{width:100%;height:100%;object-fit:cover;}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
  .tag{
    font-size:12.5px;font-weight:600;color:var(--brand-600);
    background:var(--brand-50);border:1px solid var(--brand-100);
    padding:4px 11px;border-radius:999px;
  }
  .tag-accent{color:var(--accent-600);background:#FFF3E8;border-color:#FCD9BC;}
  .tag-success{color:#15803D;background:#EAF7EF;border-color:#BFE7CF;}
  .card-link{margin-top:auto;padding-top:18px;font-size:14.5px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:8px;}
  .card-link:hover{color:var(--accent-600);gap:12px;}

  /* ---------- 合作方式 ---------- */
  .plan{
    position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    padding:30px 26px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
    transition:transform .22s ease,box-shadow .22s ease;
  }
  .plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
  .plan.featured{border-color:var(--accent-500);box-shadow:0 18px 44px rgba(249,115,22,.16);}
  .plan.featured::before{
    content:"推荐";position:absolute;top:-1px;left:26px;
    background:var(--accent-500);color:#fff;font-size:12.5px;font-weight:700;
    padding:5px 16px;border-radius:0 0 10px 10px;letter-spacing:.04em;
  }
  .plan h3{font-size:19px;margin-bottom:6px;}
  .plan .plan-fit{font-size:13.5px;color:var(--muted);margin-bottom:18px;min-height:42px;}
  .plan .plan-price{font-size:15px;color:var(--brand-600);font-weight:700;}
  .plan .plan-price b{font-size:30px;color:var(--brand-700);font-weight:800;margin-right:4px;}
  .plan ul{margin:20px 0 24px;display:grid;gap:11px;}
  .plan li{display:flex;gap:10px;font-size:14.5px;color:#22384C;line-height:1.65;}
  .plan li i{color:var(--success);margin-top:5px;flex:0 0 auto;}
  .plan li.off{color:#93A4B3;}
  .plan li.off i{color:#C3CFD9;}
  .plan .btn{margin-top:auto;}

  /* ---------- 流程 ---------- */
  .flow{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative;}
  .flow-step{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    padding:22px 20px;box-shadow:var(--shadow-card);position:relative;
  }
  .flow-step .num{
    display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;
    background:var(--brand-500);color:#fff;font-weight:800;font-size:14px;margin-bottom:14px;
  }
  .flow-step h3{font-size:16.5px;margin-bottom:8px;}
  .flow-step p{font-size:14px;color:var(--muted);line-height:1.75;}
  .flow-step .days{margin-top:12px;font-size:12.5px;color:var(--accent-600);font-weight:600;}

  /* ---------- 时间线 ---------- */
  .timeline{border-left:2px solid var(--border);padding-left:0;margin-top:8px;}
  .tl-item{position:relative;padding:0 0 26px 30px;}
  .tl-item::before{
    content:"";position:absolute;left:-9px;top:6px;width:16px;height:16px;border-radius:50%;
    background:#fff;border:3px solid var(--brand-500);
  }
  .tl-item.done::before{background:var(--success);border-color:var(--success);}
  .tl-item .tl-time{font-size:13.5px;color:var(--brand-600);font-weight:700;letter-spacing:.02em;}
  .tl-item h3{font-size:17px;margin:6px 0 8px;}
  .tl-item p{color:var(--muted);font-size:14.5px;}

  /* ---------- 案例 ---------- */
  .case{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;
    box-shadow:var(--shadow-card);display:flex;flex-direction:column;
    transition:transform .22s ease,box-shadow .22s ease;
  }
  .case:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
  .case img{width:100%;height:200px;object-fit:cover;}
  .case-body{padding:22px;display:flex;flex-direction:column;flex:1;}
  .case-body h3{font-size:17.5px;margin-bottom:10px;}
  .case-body p{color:var(--muted);font-size:14.5px;line-height:1.8;}
  .case-meta{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:16px;font-size:13px;color:var(--muted);}
  .case-meta b{color:var(--brand-600);}

  /* ---------- FAQ ---------- */
  .faq{border:1px solid var(--border);border-radius:var(--radius-card);background:#fff;overflow:hidden;box-shadow:var(--shadow-card);}
  .faq details{border-bottom:1px solid var(--border);}
  .faq details:last-child{border-bottom:0;}
  .faq summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 24px;cursor:pointer;font-weight:600;font-size:16.5px;list-style:none;
  }
  .faq summary::-webkit-details-marker{display:none;}
  .faq summary:hover{background:var(--brand-50);color:var(--brand-700);}
  .faq summary .plus{
    flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--brand-100);
    color:var(--brand-600);display:grid;place-items:center;font-size:13px;
    transition:transform .22s ease,background-color .22s ease,color .22s ease;
  }
  .faq details[open] summary .plus{transform:rotate(135deg);background:var(--brand-500);color:#fff;border-color:var(--brand-500);}
  .faq .answer{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.85;}

  /* ---------- CTA 表单 ---------- */
  .cta-wrap{
    background:linear-gradient(120deg,#0F466B 0%,#155A8A 58%,#1C6FA8 100%);
    border-radius:24px;padding:48px;color:#fff;position:relative;overflow:hidden;
  }
  .cta-wrap::after{
    content:"";position:absolute;right:-90px;bottom:-110px;width:340px;height:340px;border-radius:50%;
    background:rgba(249,115,22,.22);
  }
  .cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;position:relative;z-index:1;}
  .cta-wrap h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px;}
  .cta-wrap p{color:rgba(255,255,255,.86);font-size:16px;line-height:1.85;}
  .cta-points{margin-top:24px;display:grid;gap:12px;}
  .cta-points li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.9);}
  .cta-points i{color:#FFC489;margin-top:5px;}
  .form-card{background:#fff;border-radius:18px;padding:28px;color:var(--text);box-shadow:0 22px 50px rgba(4,25,40,.28);}
  .field{margin-bottom:16px;}
  .field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:#22384C;}
  .field label .req{color:var(--accent-500);}
  .field input,.field select,.field textarea{
    width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-btn);
    background:#FBFDFF;font-size:15px;transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
  }
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--brand-500);background:#fff;box-shadow:0 0 0 4px rgba(28,111,168,.14);
  }
  .field textarea{min-height:84px;resize:vertical;}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  .checkline{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);line-height:1.65;}
  .checkline input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand-500);flex:0 0 auto;}
  .form-note{font-size:13px;color:var(--muted);margin-top:12px;text-align:center;}
  .alert{
    display:none;margin-bottom:16px;padding:12px 14px;border-radius:var(--radius-btn);font-size:14px;
  }
  .alert.show{display:block;}
  .alert-ok{background:#EAF7EF;border:1px solid #BFE7CF;color:#15803D;}
  .alert-err{background:#FEF2F2;border:1px solid #FBD5D5;color:#B91C1C;}

  /* ---------- 侧边信息条 ---------- */
  .stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
  .stat{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    padding:24px;box-shadow:var(--shadow-card);text-align:center;
  }
  .stat b{display:block;font-size:30px;font-weight:800;color:var(--brand-700);letter-spacing:-.02em;}
  .stat span{font-size:14px;color:var(--muted);}

  /* ---------- Footer ---------- */
  .site-footer{background:#0E2438;color:rgba(255,255,255,.76);padding:64px 0 26px;margin-top:20px;}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
  .footer-brand{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px;}
  .footer-brand .brand-mark{background:linear-gradient(140deg,#2A87C4,#155A8A);box-shadow:none;}
  .footer-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:380px;}
  .footer-title{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
  .footer-links{display:grid;gap:10px;}
  .footer-links a{font-size:14.5px;color:rgba(255,255,255,.72);}
  .footer-links a:hover{color:#7FC4EE;}
  .footer-contact{display:grid;gap:10px;font-size:14.5px;color:rgba(255,255,255,.72);}
  .footer-contact b{color:#fff;font-weight:600;margin-right:6px;}
  .footer-bottom{
    margin-top:42px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.55);
  }

  /* ---------- Responsive ---------- */
  @media (max-width:1024px){
    .main-nav,.header-actions .mega{display:none;}
    .nav-toggle{display:flex;}
    .hero-grid{grid-template-columns:1fr;gap:34px;}
    .grid-4{grid-template-columns:repeat(2,1fr);}
    .flow{grid-template-columns:repeat(2,1fr);}
    .cta-grid{grid-template-columns:1fr;gap:32px;}
    .stat-strip{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  }
  @media (max-width:768px){
    .section{padding:64px 0;}
    .section-sm{padding:48px 0;}
    .container{padding:0 18px;}
    .grid-3,.grid-2{grid-template-columns:1fr;}
    .page-hero .container{padding-top:60px;padding-bottom:60px;}
    .hero-btns .btn{width:100%;}
    .cta-wrap{padding:30px 22px;border-radius:18px;}
    .form-row{grid-template-columns:1fr;}
    .grid-4{grid-template-columns:1fr;}
    .flow{grid-template-columns:1fr;}
    .stat-strip{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .faq summary{font-size:15.5px;padding:18px 18px;}
    .faq .answer{padding:0 18px 20px;}
  }
  @media (max-width:520px){
    .brand-text{font-size:16px;}
    .brand-text small{display:none;}
    .hero-stats{gap:20px;}
    .hero-stats div b{font-size:20px;}
    .card{padding:22px 18px;}
    .plan{padding:26px 20px;}
  }

/* roulang page: category4 */
:root{
  --brand-50:#EAF4FB;
  --brand-100:#D6EAF7;
  --brand-500:#1C6FA8;
  --brand-600:#155A8A;
  --brand-700:#0F466B;
  --accent-500:#F97316;
  --accent-600:#EA580C;
  --success:#16A34A;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --text:#102033;
  --muted:#5B6B7C;
  --border:#DCE6EF;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow:0 10px 30px rgba(15,42,66,.08);
  --shadow-hover:0 16px 40px rgba(15,42,66,.14);
  --footer-bg:#0F2438;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Inter",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul,ol{list-style:none;margin:0;padding:0;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.2px;}
p{margin:0;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:780px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,3vw,34px);color:var(--text);margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16.5px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:1.5px;color:var(--brand-600);text-transform:uppercase;margin-bottom:12px;}

/* 头部与导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 2px 14px rgba(15,42,66,.05);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:74px;}
.site-logo{display:flex;align-items:center;gap:11px;font-weight:700;font-size:18px;color:var(--text);white-space:nowrap;}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--brand-600);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;letter-spacing:.5px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{padding:9px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--muted);transition:all .2s ease;}
.nav-link:hover{background:var(--brand-50);color:var(--brand-600);}
.nav-link.active{background:var(--brand-50);color:var(--brand-700);font-weight:600;box-shadow:inset 0 0 0 1px var(--brand-100);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:10px;}
.nav-mega{position:relative;}
.mega-trigger{display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--brand-700);font-size:14.5px;font-weight:600;cursor:pointer;transition:all .2s ease;}
.mega-trigger:hover{background:var(--brand-50);border-color:var(--brand-100);}
.mega-panel{position:absolute;top:calc(100% + 12px);right:0;width:660px;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-hover);padding:24px;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s ease,transform .2s ease,visibility .2s;}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{font-size:14px;color:var(--text);margin-bottom:12px;}
.mega-col a{display:block;font-size:14px;color:var(--muted);padding:7px 0;transition:color .2s ease;}
.mega-col a:hover{color:var(--brand-600);}
.mega-card{background:var(--brand-50);border-radius:14px;padding:16px;border:1px solid var(--brand-100);}
.mega-card b{display:block;font-size:14.5px;color:var(--brand-700);margin-bottom:6px;}
.mega-card span{font-size:13px;color:var(--muted);display:block;line-height:1.7;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--brand-700);cursor:pointer;align-items:center;justify-content:center;font-size:17px;}
.mobile-drawer{display:none;border-top:1px solid var(--border);background:#fff;}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-inner{padding:16px 24px 26px;display:flex;flex-direction:column;gap:6px;}
.mobile-drawer a{padding:12px 14px;border-radius:10px;font-size:15.5px;color:var(--muted);font-weight:500;}
.mobile-drawer a.active{background:var(--brand-50);color:var(--brand-700);font-weight:600;}
.mobile-drawer .btn{margin-top:10px;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .2s ease;}
.btn:focus-visible{outline:3px solid rgba(28,111,168,.35);outline-offset:2px;}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 6px 16px rgba(21,90,138,.22);}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-2px);box-shadow:0 12px 26px rgba(21,90,138,.28);}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:0 6px 16px rgba(249,115,22,.24);}
.btn-accent:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:0 12px 26px rgba(234,88,12,.3);}
.btn-outline{background:#fff;border-color:var(--border);color:var(--brand-700);}
.btn-outline:hover{background:var(--brand-50);border-color:var(--brand-100);transform:translateY(-2px);}
.btn-block{width:100%;}
.btn-sm{padding:9px 16px;font-size:14px;}

/* 徽章与标签 */
.badge{display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;background:var(--brand-50);border:1px solid var(--brand-100);color:var(--brand-700);font-size:13.5px;font-weight:600;}
.badge-accent{background:#FFF1E6;border-color:#FFDCC2;color:var(--accent-600);}
.tag{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;background:var(--bg);border:1px solid var(--border);color:var(--muted);font-size:12.5px;font-weight:500;}
.tag-green{background:#EAF8EF;border-color:#C6EBD4;color:var(--success);}
.tag-blue{background:var(--brand-50);border-color:var(--brand-100);color:var(--brand-600);}

/* Hero */
.hero{position:relative;padding:76px 0 56px;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);border-bottom:1px solid var(--border);}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.hero h1{font-size:clamp(28px,4vw,46px);line-height:1.28;margin:18px 0 18px;}
.hero-sub{font-size:17px;color:var(--muted);max-width:600px;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:30px;color:var(--muted);font-size:14.5px;}
.hero-meta li{display:flex;align-items:center;gap:9px;}
.hero-meta i{color:var(--brand-500);}
.hero-visual{position:relative;}
.hero-visual img{width:100%;height:400px;object-fit:cover;border-radius:18px;border:1px solid var(--border);box-shadow:var(--shadow-hover);}
.hero-card{position:absolute;left:22px;bottom:-24px;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-hover);padding:18px 20px;min-width:262px;}
.hero-card-row{display:flex;align-items:center;justify-content:space-between;gap:18px;font-size:14px;color:var(--muted);padding:6px 0;}
.hero-card-row b{color:var(--brand-700);font-size:15px;}
.trust-bar{display:flex;flex-wrap:wrap;gap:14px 34px;align-items:center;margin-top:74px;padding:18px 24px;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);font-size:14.5px;color:var(--muted);}
.trust-bar span{display:flex;align-items:center;gap:9px;}
.trust-bar i{color:var(--success);}

/* 卡片 */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-100);}
.card-body{padding:26px;}
.card-body h3{font-size:19px;margin-bottom:10px;}
.card-body p{color:var(--muted);font-size:15px;}

/* 流程步骤 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;}
.step{position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:26px 20px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.step-num{width:42px;height:42px;border-radius:12px;background:var(--brand-50);color:var(--brand-700);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;margin-bottom:16px;}
.step h3{font-size:17px;margin-bottom:9px;}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.step-time{display:block;margin-top:14px;font-size:13px;color:var(--accent-600);font-weight:600;}

/* 材料清单 */
.material-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
.material-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow);padding:30px;}
.material-card h3{font-size:20px;margin-bottom:6px;}
.material-card > p{color:var(--muted);font-size:14.5px;margin-bottom:8px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;padding:13px 0;border-bottom:1px dashed var(--border);font-size:15px;color:var(--text);}
.check-list li:last-child{border-bottom:none;}
.check-list i{color:var(--success);margin-top:5px;font-size:14px;}
.check-list span{display:block;color:var(--muted);font-size:13.5px;margin-top:4px;}
.notice{margin-top:26px;display:flex;gap:14px;background:#FFF7ED;border:1px solid #FFE0BF;border-radius:14px;padding:18px 20px;color:#8A4B12;font-size:14.5px;line-height:1.8;}
.notice i{color:var(--accent-500);margin-top:4px;}

/* 时间线 */
.timeline-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:start;}
.timeline{position:relative;padding-left:30px;}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--brand-100),var(--border));}
.timeline-item{position:relative;padding:0 0 30px 0;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{content:"";position:absolute;left:-30px;top:8px;width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--brand-500);}
.timeline-item.done::before{border-color:var(--success);background:var(--success);}
.timeline-item.wait::before{border-color:var(--border);background:#fff;}
.timeline-date{font-size:13.5px;font-weight:600;color:var(--brand-600);letter-spacing:.6px;margin-bottom:6px;}
.timeline-item h3{font-size:18px;margin-bottom:8px;}
.timeline-item p{color:var(--muted);font-size:14.8px;}
.side-visual img{width:100%;height:280px;object-fit:cover;border-radius:16px;border:1px solid var(--border);box-shadow:var(--shadow);}
.side-note{background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);padding:24px;margin-top:22px;}
.side-note h3{font-size:17px;margin-bottom:12px;}
.side-note li{display:flex;gap:10px;font-size:14.5px;color:var(--muted);padding:8px 0;border-bottom:1px dashed var(--border);}
.side-note li:last-child{border-bottom:none;}
.side-note i{color:var(--brand-500);margin-top:5px;font-size:13px;}

/* FAQ */
.faq-list{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--border);}
.faq-item:last-child{border-bottom:none;}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 28px;cursor:pointer;font-size:16.5px;font-weight:600;color:var(--text);list-style:none;transition:background .2s ease;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:var(--brand-50);}
.faq-item summary:focus-visible{outline:3px solid rgba(28,111,168,.35);outline-offset:-3px;}
.faq-icon{flex:0 0 auto;width:28px;height:28px;border-radius:50%;background:var(--brand-50);color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-size:13px;transition:transform .25s ease,background .25s ease;}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--brand-600);color:#fff;}
.faq-answer{padding:0 28px 24px;color:var(--muted);font-size:15.2px;line-height:1.85;}

/* 联系支持 */
.support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.support-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow);padding:28px;transition:transform .25s ease,box-shadow .25s ease;}
.support-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.support-icon{width:48px;height:48px;border-radius:14px;background:var(--brand-50);color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:16px;}
.support-card h3{font-size:18px;margin-bottom:10px;}
.support-card p{color:var(--muted);font-size:14.8px;line-height:1.8;}
.support-card .meta{margin-top:14px;font-size:14.5px;color:var(--brand-700);font-weight:600;}

/* 报名表单 */
.signup{background:var(--footer-bg);border-radius:20px;color:#fff;padding:52px 48px;display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:start;}
.signup h2{font-size:clamp(24px,3vw,32px);margin-bottom:16px;color:#fff;}
.signup p.lead{color:#B9CBDC;font-size:15.5px;line-height:1.85;max-width:460px;}
.signup-points{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.signup-points li{display:flex;gap:10px;font-size:14.8px;color:#CFDDEA;}
.signup-points i{color:#6FD08C;margin-top:5px;font-size:13px;}
.form-panel{background:#fff;border-radius:16px;padding:30px;color:var(--text);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--text);}
.field input,.field select,.field textarea{padding:12px 14px;border:1px solid var(--border);border-radius:10px;background:#fff;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(28,111,168,.16);}
.field textarea{min-height:96px;resize:vertical;}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13.8px;color:var(--muted);line-height:1.7;}
.agree input{margin-top:4px;width:16px;height:16px;accent-color:var(--brand-600);}
.form-msg{margin-bottom:16px;padding:13px 16px;border-radius:10px;font-size:14.5px;line-height:1.7;}
.form-msg.ok{background:#EAF8EF;border:1px solid #C6EBD4;color:#12703C;}
.form-msg.err{background:#FEF2F2;border:1px solid #FBD5D5;color:#B42318;}
.form-hint{margin-top:14px;font-size:13.2px;color:var(--muted);}

/* 页脚 */
.site-footer{background:var(--footer-bg);color:#C8D6E3;padding:66px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:38px;}
.footer-brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--brand-500);}
.footer-desc{font-size:14px;line-height:1.9;color:#9FB3C6;max-width:340px;}
.footer-title{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-links{display:flex;flex-direction:column;gap:11px;font-size:14px;}
.footer-links a{color:#9FB3C6;transition:color .2s ease;}
.footer-links a:hover{color:#fff;}
.footer-contact div{font-size:14px;color:#9FB3C6;margin-bottom:11px;}
.footer-contact b{color:#fff;font-weight:600;margin-right:8px;}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;color:#8298AB;}

/* 响应式 */
@media (max-width:1180px){
  .main-nav{gap:0;}
  .nav-link{padding:9px 11px;font-size:14.5px;}
}
@media (max-width:1024px){
  .main-nav,.nav-mega{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .header-inner{justify-content:space-between;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-visual img{height:330px;}
  .hero-card{position:static;margin-top:20px;box-shadow:var(--shadow);}
  .trust-bar{margin-top:34px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .material-grid{grid-template-columns:1fr;}
  .timeline-wrap{grid-template-columns:1fr;gap:32px;}
  .support-grid{grid-template-columns:1fr;}
  .signup{grid-template-columns:1fr;padding:40px 30px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .section{padding:64px 0;}
  .container{padding:0 18px;}
  .hero{padding:52px 0 40px;}
  .hero-actions .btn{width:100%;}
  .hero-visual img{height:250px;}
  .steps{grid-template-columns:1fr;}
  .faq-item summary{padding:18px 20px;font-size:15.5px;}
  .faq-answer{padding:0 20px 20px;}
  .card-body{padding:22px;}
  .form-grid{grid-template-columns:1fr;}
  .signup{padding:32px 20px;border-radius:16px;}
  .form-panel{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .hero h1{font-size:26px;}
  .hero-meta{gap:10px;font-size:14px;}
  .site-logo{font-size:16px;}
  .brand-mark{width:34px;height:34px;font-size:13px;}
}