/* roulang page: index */
:root{
  --bg:#0A1210; --panel:#101B18; --card:#13211D; --foot:#08100E;
  --pri:#1FD1A5; --pri-h:#35E7B8; --pri-a:#17B08C;
  --amber:#FFB45C; --coral:#FF5F5B;
  --txt:#EAF3EF; --txt2:#9DB2AA; --txt3:#6C847C;
  --line:rgba(255,255,255,.08); --line-s:rgba(31,209,165,.35);
  --r-card:14px; --r-btn:10px; --r-chip:999px; --r-img:12px; --r-input:10px; --r-badge:8px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06),0 10px 30px rgba(0,0,0,.35);
  --shadow-btn:0 0 0 1px rgba(31,209,165,.5),0 8px 24px rgba(31,209,165,.25);
  --gutter:clamp(56px,7vw,96px);
  --bs-body-bg:#0A1210;
  --bs-body-color:#EAF3EF;
  --bs-primary:#1FD1A5;
  --bs-link-color:#1FD1A5;
  --bs-link-hover-color:#35E7B8;
  --bs-border-radius:.875rem;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  background-color:var(--bg);
  background-image:
    radial-gradient(720px 460px at 10% -8%, rgba(31,209,165,.12), transparent 68%),
    radial-gradient(560px 420px at 92% 4%, rgba(255,180,92,.06), transparent 70%);
  background-repeat:no-repeat;
  color:var(--txt);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.85;text-align:left;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:var(--pri);text-decoration:none;transition:color .18s ease,border-color .18s ease,background .18s ease}
a:hover{color:var(--pri-h)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--pri);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:575px){.wrap{padding:0 20px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(10,18,16,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--txt)}
.brand:hover{color:var(--txt)}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:rgba(31,209,165,.10);border:1px solid var(--line-s);color:var(--pri);flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;color:var(--txt)}
.brand-text small{font-size:11px;color:var(--txt3);letter-spacing:.02em}
.chip-nav{
  display:flex;align-items:center;gap:6px;flex:1 1 auto;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;-webkit-overflow-scrolling:touch;
  padding:14px 2px;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 14px;
  border-radius:var(--r-chip);font-size:14px;color:var(--txt2);
  border:1px solid transparent;white-space:nowrap;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.chip:hover{background:rgba(255,255,255,.06);color:var(--txt)}
.chip.active{background:rgba(31,209,165,.12);color:var(--pri);border-color:rgba(31,209,165,.4)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  display:grid;place-items:center;width:40px;height:40px;border-radius:var(--r-btn);
  background:transparent;border:1px solid var(--line);color:var(--txt2);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:var(--line-s);color:var(--pri);background:rgba(31,209,165,.08)}

/* ---------- buttons ---------- */
.lk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.lk-btn-sm{height:38px;min-height:38px;padding:0 16px;font-size:14px}
.lk-btn-primary{background:var(--pri);color:#05130F;box-shadow:var(--shadow-btn)}
.lk-btn-primary:hover{background:var(--pri-h);color:#05130F;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,209,165,.7),0 12px 30px rgba(31,209,165,.33)}
.lk-btn-primary:active{background:var(--pri-a);transform:none}
.lk-btn-ghost{background:transparent;color:var(--txt);border-color:rgba(255,255,255,.16)}
.lk-btn-ghost:hover{color:var(--pri);border-color:var(--line-s);background:rgba(31,209,165,.08)}
.lk-btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--txt2);font-size:14px;
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:color .18s ease,border-color .18s ease;
}
.lk-btn-text:hover{color:var(--pri);border-bottom-color:var(--pri)}
.lk-btn[disabled]{opacity:.3;pointer-events:none}

/* ---------- hero ---------- */
.hero{padding:clamp(40px,6vw,76px) 0 0}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,56px);align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;
  border-radius:var(--r-chip);background:rgba(31,209,165,.10);
  border:1px solid rgba(31,209,165,.28);color:var(--pri);
  font-size:12px;letter-spacing:.02em;margin-bottom:20px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--pri);box-shadow:0 0 0 4px rgba(31,209,165,.15)}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);line-height:1.15;font-weight:700;letter-spacing:0;
  margin-bottom:18px;color:var(--txt);
}
.hero h1 em{font-style:normal;color:var(--pri)}
.hero-sub{font-size:clamp(15px,1.4vw,17px);line-height:1.85;color:var(--txt2);max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.hero-metrics li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--txt2)}
.hero-metrics i{color:var(--pri);font-size:14px}
.hero-metrics b{font-size:19px;color:var(--txt);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;
  border-radius:16px;border:1px solid var(--line);box-shadow:0 20px 50px rgba(0,0,0,.45);
}
.float-card{
  position:absolute;left:18px;bottom:18px;
  display:flex;align-items:center;gap:12px;
  padding:12px 16px;border-radius:12px;
  background:rgba(10,18,16,.72);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.10);
  max-width:calc(100% - 36px);
}
.float-card .dot{width:8px;height:8px;border-radius:50%;background:var(--pri);box-shadow:0 0 0 4px rgba(31,209,165,.16);flex:0 0 auto}
.float-card strong{display:block;font-size:13.5px;color:var(--txt);line-height:1.4}
.float-card small{display:block;font-size:11.5px;color:var(--txt3);line-height:1.4}

/* ---------- stats bar ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:clamp(36px,5vw,58px);
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.stat{padding:22px 24px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat b{display:block;font-size:clamp(28px,3vw,34px);line-height:1.1;color:var(--pri);font-variant-numeric:tabular-nums;font-weight:700;margin-bottom:6px}
.stat span{font-size:13px;color:var(--txt2)}

/* ---------- section head ---------- */
.section{padding:var(--gutter) 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;margin-bottom:8px}
.section-head .sub{font-size:15px;color:var(--txt2);max-width:44em}
.section-tag{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--pri);letter-spacing:.02em;margin-bottom:12px}
.section-tag::before{content:"";width:18px;height:1px;background:var(--pri);opacity:.6}

/* ---------- track steps ---------- */
.track{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-top:26px}
.track::before{
  content:"";position:absolute;left:0;right:0;top:8px;height:1px;
  background:linear-gradient(90deg,rgba(31,209,165,.45),rgba(255,255,255,.10) 70%,rgba(255,255,255,.04));
}
.step{
  position:relative;padding:26px 22px 24px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease;
}
.step:hover{border-color:var(--line-s);transform:translateY(-1px)}
.step::before{
  content:"";position:absolute;top:-22px;left:26px;width:9px;height:9px;border-radius:50%;
  background:var(--pri);box-shadow:0 0 0 4px rgba(31,209,165,.14);
}
.step em{
  display:block;font-style:normal;font-size:34px;line-height:1;font-weight:700;
  color:rgba(31,209,165,.30);font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step h3{font-size:18px;line-height:1.45;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;color:var(--txt2);line-height:1.8}

/* ---------- milestones ---------- */
.milestones{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-top:26px}
.milestones::before{
  content:"";position:absolute;left:0;right:0;top:8px;height:1px;
  background:linear-gradient(90deg,rgba(31,209,165,.45),rgba(255,180,92,.35) 55%,rgba(255,255,255,.06));
}
.ms-card{
  position:relative;padding:14px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-card);
  transition:border-color .2s ease;
}
.ms-card::before{
  content:"";position:absolute;top:-22px;left:24px;width:9px;height:9px;border-radius:50%;
  background:var(--txt3);box-shadow:0 0 0 4px rgba(255,255,255,.05);
}
.ms-card.done::before{background:var(--pri);box-shadow:0 0 0 4px rgba(31,209,165,.16)}
.ms-card.doing::before{background:var(--amber);box-shadow:0 0 0 4px rgba(255,180,92,.16)}
.ms-card.done{border-color:var(--line-s);box-shadow:var(--shadow-card),0 0 0 1px rgba(31,209,165,.10)}
.ms-card.todo{border-style:dashed;border-color:rgba(255,255,255,.14)}
.ms-thumb{aspect-ratio:1/1;border-radius:var(--r-img);overflow:hidden;margin-bottom:12px;background:var(--panel)}
.ms-thumb img{width:100%;height:100%;object-fit:cover}
.ms-card h3{font-size:16px;line-height:1.5;font-weight:600;margin-bottom:6px}
.ms-card p{font-size:13px;color:var(--txt2);line-height:1.7;min-height:44px}
.lk-badge{
  display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;line-height:1.4;font-weight:500;
}
.badge-pri{background:rgba(31,209,165,.14);color:var(--pri)}
.badge-amber{background:rgba(255,180,92,.14);color:var(--amber)}
.badge-gray{background:rgba(255,255,255,.06);color:var(--txt3)}

/* ---------- task panel ---------- */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);overflow:hidden}
.panel-body{padding:26px}
.progress-line{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px;flex-wrap:wrap}
.progress-line span{font-size:13.5px;color:var(--txt2)}
.progress-line b{font-size:14px;color:var(--pri);font-variant-numeric:tabular-nums}
.progress-rail{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;box-shadow:inset 0 1px 2px rgba(0,0,0,.4)}
.progress-fill{
  height:100%;width:66%;border-radius:999px;
  background:linear-gradient(90deg,var(--pri),var(--amber));
  box-shadow:0 0 14px rgba(31,209,165,.45);
}
.task-list{margin-top:22px;border-top:1px solid var(--line)}
.task-row{
  display:flex;align-items:center;gap:14px;padding:15px 4px;
  border-bottom:1px solid var(--line);transition:background .18s ease;
}
.task-row:last-child{border-bottom:0}
.task-row:hover{background:rgba(255,255,255,.04)}
.task-row .tick{
  display:grid;place-items:center;width:22px;height:22px;border-radius:6px;flex:0 0 auto;
  border:1px solid var(--line);color:var(--txt3);font-size:11px;
}
.task-row.ok .tick{border-color:var(--line-s);background:rgba(31,209,165,.12);color:var(--pri)}
.task-row .tname{flex:1 1 auto;font-size:15px;color:var(--txt)}
.task-row .tnote{font-size:13px;color:var(--txt3);flex:0 0 auto}

/* ---------- news / cms ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-card);color:var(--txt);
  transition:border-color .2s ease,transform .2s ease;
}
.news-card:hover{border-color:var(--line-s);color:var(--txt);transform:translateY(-1px)}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--panel)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-thumb .lk-badge{position:absolute;left:12px;top:12px;background:rgba(10,18,16,.78);color:var(--pri);border:1px solid rgba(31,209,165,.3)}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.news-body h3{
  font-size:16.5px;line-height:1.5;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14px;color:var(--txt2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  flex:1 1 auto;
}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--txt3);font-variant-numeric:tabular-nums}
.news-meta i{color:var(--pri);font-size:12px}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-height:180px;padding:32px;text-align:center;
  background:var(--panel);border:1px dashed rgba(255,255,255,.14);border-radius:var(--r-card);
}
.empty-state i{font-size:22px;color:var(--txt3);margin-bottom:12px}
.empty-state strong{font-size:15px;color:var(--txt2);margin-bottom:4px}
.empty-state span{font-size:13px;color:var(--txt3)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  transition:border-color .2s ease;overflow:hidden;
}
.faq-item[open]{border-color:rgba(31,209,165,.25)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--txt);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--pri)}
.faq-icon{
  display:grid;place-items:center;width:26px;height:26px;flex:0 0 auto;
  border-radius:8px;border:1px solid var(--line);color:var(--txt2);
  font-size:13px;transition:transform .16s ease,color .16s ease,border-color .16s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);color:var(--pri);border-color:var(--line-s)}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--txt2);background:rgba(255,255,255,.03);border-top:1px solid rgba(31,209,165,.12)}

/* ---------- cta bar ---------- */
.cta-bar{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:clamp(26px,3vw,38px);border-radius:var(--r-card);
  border:1px solid var(--line-s);
  background:
    radial-gradient(520px 240px at 12% 20%, rgba(31,209,165,.08), transparent 70%),
    var(--panel);
  box-shadow:var(--shadow-card);
  flex-wrap:wrap;
}
.cta-bar h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin-bottom:8px}
.cta-bar p{font-size:14.5px;color:var(--txt2)}

/* ---------- footer ---------- */
.site-footer{margin-top:var(--gutter);background:var(--foot);border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding:56px 0 36px}
.footer-brand p{font-size:14px;color:var(--txt2);line-height:1.8;margin-top:16px;max-width:30em}
.footer-col h4{font-size:14px;font-weight:600;color:var(--txt);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--txt2)}
.footer-col a:hover{color:var(--pri)}
.footer-col p{font-size:13.5px;color:var(--txt3);line-height:1.8}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--line);
  font-size:13px;color:var(--txt3);
}
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:90;
  display:grid;place-items:center;width:44px;height:44px;border-radius:50%;
  background:var(--panel);border:1px solid var(--line);color:var(--txt2);
  box-shadow:var(--shadow-card);
  transition:color .18s ease,border-color .18s ease,transform .18s ease;
}
.to-top:hover{color:var(--pri);border-color:var(--line-s);transform:translateY(-2px)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .track,.milestones{grid-template-columns:repeat(2,1fr)}
  .track::before,.milestones::before{display:none}
  .step::before,.ms-card::before{display:none}
}
@media (max-width:991px){
  .header-inner{flex-wrap:wrap;height:auto;padding-top:10px;padding-bottom:8px;gap:10px}
  .chip-nav{order:3;width:100%;flex:1 0 100%;padding:4px 2px 6px;margin-top:2px;border-top:1px solid var(--line)}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-visual{order:2}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:767px){
  .track,.milestones{grid-template-columns:1fr}
  .step,.ms-card{display:block}
  .news-grid{grid-template-columns:1fr}
  .hero-visual img{aspect-ratio:16/11;max-height:280px}
  .hero-metrics{gap:12px 24px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-bar{flex-direction:column;align-items:flex-start}
  .panel-body{padding:20px}
  .task-row .tnote{display:none}
}
@media (max-width:575px){
  .brand-text small{display:none}
  .header-actions .icon-btn{display:none}
  .hero h1{font-size:clamp(26px,7.4vw,32px)}
  .hero-cta .lk-btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .lk-btn-primary:hover,.step:hover,.news-card:hover,.to-top:hover{transform:none}
  .news-card:hover .news-thumb img{transform:none}
}

/* roulang page: category1 */
:root{
  --bg:#0A1210;
  --panel:#101B18;
  --card:#13211D;
  --foot:#08100E;
  --primary:#1FD1A5;
  --primary-hover:#35E7B8;
  --primary-press:#17B08C;
  --amber:#FFB45C;
  --coral:#FF5F5B;
  --text:#EAF3EF;
  --text-2:#9DB2AA;
  --text-3:#6C847C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(31,209,165,.35);
  --r-card:14px;
  --r-btn:10px;
  --r-chip:999px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:8px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 10px 30px rgba(0,0,0,.35);
  --shadow-btn:0 0 0 1px rgba(31,209,165,.5), 0 8px 24px rgba(31,209,165,.25);
  --gutter:clamp(56px,7vw,96px);

  --bs-body-bg:#0A1210;
  --bs-body-color:#EAF3EF;
  --bs-primary:#1FD1A5;
  --bs-link-color:#1FD1A5;
  --bs-link-hover-color:#35E7B8;
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-border-color:rgba(255,255,255,.08);
}

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

html{scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--primary-hover);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}

:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,18,16,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:68px;}

.brand{display:flex;align-items:center;gap:10px;flex:none;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;
  background:rgba(31,209,165,.10);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;font-weight:700;}
.brand-text small{font-size:11px;color:var(--text-3);letter-spacing:.02em;margin-top:2px;}

.chip-nav{
  display:flex;align-items:center;gap:6px;flex:1 1 auto;min-width:0;
  overflow-x:auto;scrollbar-width:none;
  padding:4px 2px;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 14px;
  border-radius:var(--r-chip);
  font-size:13.5px;color:var(--text-2);white-space:nowrap;
  border:1px solid transparent;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.chip:hover{background:rgba(255,255,255,.06);color:var(--text);}
.chip.active{
  background:rgba(31,209,165,.12);
  color:var(--primary);
  border-color:rgba(31,209,165,.4);
}

.header-actions{display:flex;align-items:center;gap:10px;flex:none;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.16);
  color:var(--text-2);background:transparent;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:var(--line-strong);color:var(--primary);background:rgba(31,209,165,.08);}

/* ============ 按钮 ============ */
.lk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;
  border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.lk-btn-sm{height:38px;padding:0 16px;font-size:13.5px;}
.lk-btn-primary{
  background:var(--primary);
  color:#05130F;
  box-shadow:var(--shadow-btn);
}
.lk-btn-primary:hover{
  background:var(--primary-hover);
  color:#05130F;
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(31,209,165,.5), 0 12px 30px rgba(31,209,165,.34);
}
.lk-btn-primary:active{background:var(--primary-press);transform:translateY(0);}
.lk-btn-ghost{
  background:transparent;color:var(--text);
  border-color:rgba(255,255,255,.16);
}
.lk-btn-ghost:hover{
  border-color:var(--line-strong);
  background:rgba(31,209,165,.08);
  color:var(--primary-hover);
  transform:translateY(-1px);
}
.lk-btn-text{
  background:none;border:none;padding:0;height:auto;
  color:var(--primary);font-size:14px;font-weight:600;
  border-bottom:1px solid rgba(31,209,165,.4);
  border-radius:0;
}
.lk-btn-text:hover{color:var(--primary-hover);border-bottom-color:var(--primary-hover);}
.lk-btn:disabled,.lk-btn[disabled]{opacity:.3;cursor:not-allowed;transform:none;}

/* ============ 页面头 ============ */
.page-hero{
  position:relative;
  padding:clamp(32px,5vw,56px) 0 clamp(36px,5vw,60px);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(900px 380px at 12% -10%, rgba(31,209,165,.12), transparent 62%),
    radial-gradient(600px 300px at 92% 8%, rgba(255,180,92,.06), transparent 66%);
  pointer-events:none;
}
.page-hero-inner{position:relative;z-index:1;}

.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:20px;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{color:rgba(255,255,255,.18);}
.crumb .current{color:var(--text-2);}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:6px 14px;border-radius:var(--r-chip);
  background:rgba(31,209,165,.10);
  border:1px solid rgba(31,209,165,.28);
  font-size:12px;color:var(--primary);letter-spacing:.02em;
  margin-bottom:18px;
}
.eyebrow em{font-style:normal;color:var(--text-3);letter-spacing:.04em;}

.page-title{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.2;
  font-weight:700;
  margin-bottom:16px;
  max-width:960px;
}
.page-lead{
  font-size:15.5px;color:var(--text-2);
  max-width:760px;line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}

.hero-facts{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;
}
.fact{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-badge);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  font-size:13px;color:var(--text-2);
}
.fact i{color:var(--primary);font-size:12px;}
.fact b{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums;}

/* ============ 通用板块 ============ */
.section{padding:var(--gutter) 0;}
.section-alt{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

.sec-head{max-width:760px;margin-bottom:clamp(26px,3.4vw,40px);}
.sec-kicker{
  display:inline-block;font-size:12px;color:var(--primary);
  letter-spacing:.06em;margin-bottom:10px;
}
.sec-title{font-size:clamp(24px,2.6vw,34px);line-height:1.3;margin-bottom:12px;}
.sec-sub{font-size:15px;color:var(--text-2);line-height:1.85;}

/* ============ 图文交替 ============ */
.zig{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:clamp(24px,4vw,52px);
  align-items:center;
  padding:clamp(24px,3vw,34px) 0;
  border-top:1px solid var(--line);
}
.zig:first-of-type{border-top:none;padding-top:0;}
.zig-media{
  margin:0;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  position:relative;
}
.zig-media img{
  width:100%;aspect-ratio:3/2;object-fit:cover;
  transition:transform .35s ease;
}
.zig-media:hover img{transform:scale(1.03);}
.zig-rev .zig-media{order:-1;}

.zig-step{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:26px;padding:0 10px;
  border-radius:var(--r-badge);
  border:1px solid rgba(31,209,165,.3);
  background:rgba(31,209,165,.10);
  color:var(--primary);font-size:12.5px;font-weight:600;
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.zig h3{font-size:20px;line-height:1.45;margin-bottom:12px;}
.zig p{color:var(--text-2);font-size:15.5px;line-height:1.85;}
.zig p + p{margin-top:12px;}

/* ============ 要点卡 2×2 ============ */
.point-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;margin-top:clamp(26px,3.4vw,40px);
}
.point-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease;
}
.point-card:hover{border-color:var(--line-strong);transform:translateY(-1px);}
.point-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--r-badge);
  background:rgba(31,209,165,.10);
  border:1px solid rgba(31,209,165,.24);
  color:var(--primary);font-size:15px;margin-bottom:14px;
}
.point-card h3{font-size:17px;margin-bottom:8px;}
.point-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;}

/* ============ 提示条 ============ */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px 22px;border-radius:var(--r-card);
  background:rgba(255,180,92,.06);
  border:1px solid rgba(255,180,92,.24);
  margin-top:28px;
}
.notice i{color:var(--amber);font-size:16px;margin-top:3px;}
.notice p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.notice strong{color:var(--text);}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item[open]{border-color:rgba(31,209,165,.25);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
  transition:color .18s ease,background .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:rgba(255,255,255,.04);color:var(--primary-hover);}
.faq-item summary::after{
  content:"＋";
  flex:none;font-size:17px;color:var(--primary);
  transition:transform .16s ease;line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{
  padding:16px 22px 20px;
  font-size:15px;color:var(--text-2);line-height:1.85;
  background:rgba(255,255,255,.03);
  border-top:1px solid rgba(31,209,165,.18);
}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:clamp(26px,3.4vw,38px);
  border-radius:var(--r-card);
  border:1px solid var(--line-strong);
  background:
    radial-gradient(600px 200px at 12% 120%, rgba(31,209,165,.10), transparent 70%),
    var(--card);
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);line-height:1.4;margin-bottom:8px;}
.cta-band p{font-size:14.5px;color:var(--text-2);}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:none;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--foot);
  border-top:1px solid var(--line);
  padding:clamp(40px,5vw,60px) 0 26px;
  margin-top:clamp(40px,5vw,64px);
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:32px;
  padding-bottom:32px;
  border-bottom:1px solid var(--line);
}
.footer-brand p{
  margin-top:16px;font-size:14px;color:var(--text-2);line-height:1.85;max-width:420px;
}
.footer-col h4{
  font-size:14px;font-weight:600;color:var(--text);
  margin-bottom:14px;letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li a{font-size:14px;color:var(--text-2);}
.footer-col li a:hover{color:var(--primary);}
.footer-col p{font-size:13.5px;color:var(--text-3);line-height:1.85;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;
  padding-top:22px;font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:26px;}
}

@media (max-width:991.98px){
  .header-inner{flex-wrap:wrap;height:auto;padding-top:10px;padding-bottom:10px;gap:12px;}
  .brand{order:1;}
  .header-actions{order:2;margin-left:auto;}
  .chip-nav{order:3;flex:0 0 100%;padding-bottom:2px;}
  .page-hero{padding-top:28px;}
  .zig{grid-template-columns:minmax(0,1fr);gap:20px;padding:28px 0;}
  .zig-rev .zig-media{order:0;}
  .zig-media img{aspect-ratio:16/10;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-band .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}

@media (max-width:767.98px){
  .wrap{padding:0 20px;}
  .point-grid{grid-template-columns:minmax(0,1fr);gap:16px;}
  .page-lead{font-size:15px;}
  .hero-facts{gap:8px;}
  .fact{font-size:12.5px;padding:7px 12px;}
}

@media (max-width:575.98px){
  body{font-size:16px;}
  .wrap{padding:0 20px;}
  .brand-text small{display:none;}
  .header-actions .icon-btn{display:none;}
  .lk-btn{height:42px;padding:0 16px;font-size:14px;}
  .lk-btn-sm{height:38px;padding:0 14px;}
  .hero-actions{width:100%;}
  .hero-actions .lk-btn{flex:1 1 auto;}
  .faq-item summary{font-size:15px;padding:16px 18px;}
  .faq-body{padding:14px 18px 18px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .zig-media:hover img{transform:none;}
  .lk-btn:hover,.point-card:hover{transform:none;}
}

/* roulang page: article */
:root{
  --bg:#0A1210;
  --panel:#101B18;
  --card:#13211D;
  --footer-bg:#08100E;
  --primary:#1FD1A5;
  --primary-hover:#35E7B8;
  --primary-active:#17B08C;
  --amber:#FFB45C;
  --coral:#FF5F5B;
  --text:#EAF3EF;
  --text-2:#9DB2AA;
  --text-3:#6C847C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(31,209,165,.35);
  --line-amber:rgba(255,180,92,.35);
  --fill-soft:rgba(255,255,255,.04);
  --fill-soft-2:rgba(255,255,255,.06);
  --r-card:14px;
  --r-btn:10px;
  --r-chip:999px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:8px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 10px 30px rgba(0,0,0,.35);
  --shadow-card-hover:inset 0 1px 0 rgba(255,255,255,.09), 0 14px 34px rgba(0,0,0,.45);
  --shadow-primary:0 0 0 1px rgba(31,209,165,.5), 0 8px 24px rgba(31,209,165,.25);
  --section-gap:clamp(56px,7vw,96px);

  --bs-body-bg:var(--bg);
  --bs-body-color:var(--text);
  --bs-primary:var(--primary);
  --bs-link-color:var(--primary);
  --bs-link-hover-color:var(--primary-hover);
  --bs-border-color:var(--line);
  --bs-border-radius:var(--r-card);
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --bs-body-font-size:16.5px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  text-align:left;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 12% -6%, rgba(31,209,165,.12), transparent 70%),
    radial-gradient(560px 380px at 96% 4%, rgba(255,180,92,.06), transparent 72%);
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--primary-hover);}
h1,h2,h3,h4,h5{color:var(--text);font-weight:700;letter-spacing:.01em;margin:0;line-height:1.3;}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.2em;}
button{font-family:inherit;}
::selection{background:rgba(31,209,165,.28);color:var(--text);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}
@media (max-width:575px){.wrap{padding:0 20px;}}

.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--primary);color:#05130F;
  padding:10px 16px;border-radius:var(--r-btn);z-index:120;font-weight:700;
}
.skip-link:focus{left:12px;top:12px;color:#05130F;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(10,18,16,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  min-height:68px;padding-top:10px;padding-bottom:10px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;display:grid;place-items:center;
  border:1px solid var(--line-strong);border-radius:12px;
  background:linear-gradient(180deg,rgba(31,209,165,.14),rgba(31,209,165,.03));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:18px;font-weight:700;letter-spacing:.02em;}
.brand-text small{font-size:11px;color:var(--text-3);letter-spacing:.02em;white-space:nowrap;}

.chip-nav{
  display:flex;align-items:center;gap:6px;
  flex:1 1 auto;min-width:0;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding:4px 2px;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 12px,#000 calc(100% - 12px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 12px,#000 calc(100% - 12px),transparent 100%);
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;
  height:36px;padding:0 14px;border-radius:var(--r-chip);
  font-size:13.5px;color:var(--text-2);white-space:nowrap;
  border:1px solid transparent;background:transparent;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.chip:hover{background:var(--fill-soft-2);color:var(--text);}
.chip.active{
  background:rgba(31,209,165,.12);color:var(--primary);
  border-color:rgba(31,209,165,.4);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;
  border-radius:var(--r-btn);border:1px solid var(--line);
  color:var(--text-2);background:transparent;
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(31,209,165,.08);}

/* ---------- 按钮 ---------- */
.lk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
}
.lk-btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.lk-btn-primary{background:var(--primary);color:#05130F;box-shadow:var(--shadow-primary);}
.lk-btn-primary:hover{background:var(--primary-hover);color:#05130F;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,209,165,.65),0 12px 30px rgba(31,209,165,.32);}
.lk-btn-primary:active{background:var(--primary-active);transform:translateY(0);}
.lk-btn-ghost{background:transparent;color:var(--text);border-color:rgba(255,255,255,.16);}
.lk-btn-ghost:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(31,209,165,.08);}
.lk-btn-text{background:none;border:0;color:var(--text-2);padding:0;min-height:auto;border-radius:0;position:relative;}
.lk-btn-text:hover{color:var(--primary);}
.lk-btn:disabled,.lk-btn[disabled]{opacity:.3;pointer-events:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge-lk{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;line-height:1.6;letter-spacing:.02em;font-weight:600;
  background:rgba(31,209,165,.12);color:var(--primary);border:1px solid rgba(31,209,165,.32);
}
.badge-lk.is-amber{background:rgba(255,180,92,.12);color:var(--amber);border-color:rgba(255,180,92,.32);}
.badge-lk.is-gray{background:var(--fill-soft-2);color:var(--text-2);border-color:var(--line);}
.tagchip{
  display:inline-flex;align-items:center;height:32px;padding:0 12px;
  border-radius:var(--r-chip);border:1px solid var(--line);
  font-size:13px;color:var(--text-2);background:var(--fill-soft);
}
.tagchip:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(31,209,165,.08);}

/* ---------- 文章头部 ---------- */
.page-main{padding:28px 0 var(--section-gap);position:relative;z-index:1;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:var(--text-3);opacity:.7;}
.crumbs .current{color:var(--text-3);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-head{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:
    radial-gradient(520px 220px at 8% 0%, rgba(31,209,165,.10), transparent 70%),
    var(--panel);
  box-shadow:var(--shadow-card);
  padding:clamp(24px,3.4vw,38px);
  margin-bottom:34px;
}
.head-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.article-title{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.22;
  font-weight:700;
  letter-spacing:.01em;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  font-size:13px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.article-meta .dot{width:1px;height:12px;background:var(--line);display:inline-block;}
.article-meta strong{color:var(--text-2);font-weight:600;}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,780px) 280px;
  gap:48px;
  justify-content:center;
  align-items:start;
}
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-side{display:none;}
}
.article-shell{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--card);
  box-shadow:var(--shadow-card);
  padding:clamp(22px,3vw,36px);
}
.notice-bar{
  display:flex;gap:10px;align-items:flex-start;
  border:1px solid var(--line);
  border-left:3px solid var(--amber);
  background:rgba(255,180,92,.06);
  border-radius:var(--r-badge);
  padding:12px 14px;
  font-size:13.5px;color:var(--text-2);
  margin-bottom:26px;
}
.notice-bar i{color:var(--amber);margin-top:4px;}

.article-body{
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  max-width:780px;
}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  font-size:clamp(20px,2.2vw,26px);
  line-height:1.35;
  margin:2.2em 0 .8em;
  padding-left:14px;
  position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;
  width:3px;height:18px;border-radius:2px;background:var(--primary);
}
.article-body h3{font-size:20px;line-height:1.45;margin:1.8em 0 .6em;color:var(--text);}
.article-body h4{font-size:17px;margin:1.5em 0 .5em;color:var(--text-2);}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em;}
.article-body li{margin-bottom:.5em;}
.article-body ul li{list-style:none;position:relative;padding-left:6px;}
.article-body ul li::before{
  content:"";position:absolute;left:-1em;top:.75em;
  width:7px;height:7px;border-radius:2px;background:rgba(31,209,165,.75);
}
.article-body ol li::marker{color:var(--primary);font-weight:700;}
.article-body blockquote{
  margin:1.6em 0;padding:20px 24px;
  border-left:3px solid var(--primary);
  background:rgba(255,255,255,.04);
  border-radius:0 var(--r-badge) var(--r-badge) 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:1.4em 0 .6em;border:1px solid var(--line);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption,.article-body .img-caption{
  font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;
}
.article-body a{
  color:var(--primary);
  border-bottom:1px solid rgba(31,209,165,.4);
}
.article-body a:hover{border-bottom-color:var(--primary);}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;
  font-size:14.5px;border:1px solid var(--line);border-radius:var(--r-badge);
  overflow:hidden;
}
.article-body .table-scroll{overflow-x:auto;margin:1.6em 0;}
.article-body table tr:nth-child(odd){background:rgba(255,255,255,.025);}
.article-body th,.article-body td{
  padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;
}
.article-body th{background:rgba(255,255,255,.05);color:var(--text);font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.article-body code{
  background:rgba(255,255,255,.06);padding:2px 6px;border-radius:6px;
  font-size:14px;color:var(--amber);
}

/* 无内容空态 */
.empty-state{
  text-align:center;padding:64px 24px;
  border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--fill-soft);
}
.empty-state .ico{
  width:52px;height:52px;margin:0 auto 16px;display:grid;place-items:center;
  border-radius:var(--r-chip);border:1px solid var(--line-strong);
  color:var(--primary);background:rgba(31,209,165,.08);font-size:20px;
}
.empty-state h2{font-size:20px;margin-bottom:8px;}
.empty-state p{color:var(--text-2);font-size:14.5px;margin-bottom:20px;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;}
.side-card{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--card);box-shadow:var(--shadow-card);
  padding:20px;
}
.side-card h3{font-size:14px;color:var(--text-2);letter-spacing:.04em;margin-bottom:14px;font-weight:600;}
.side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px;}
.side-list li a{
  display:block;padding:9px 10px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;border-radius:0 var(--r-badge) var(--r-badge) 0;
  transition:all .16s ease;
}
.side-list li a:hover{color:var(--primary);background:var(--fill-soft);border-left-color:var(--primary);}
.side-list li a.is-current{color:var(--primary);border-left-color:var(--primary);background:rgba(31,209,165,.08);}
.side-progress{height:8px;border-radius:var(--r-chip);background:rgba(255,255,255,.08);overflow:hidden;margin:12px 0 10px;}
.side-progress span{display:block;height:100%;width:68%;border-radius:var(--r-chip);background:linear-gradient(90deg,var(--primary),var(--amber));}
.side-note{font-size:13px;color:var(--text-3);line-height:1.75;}

/* ---------- 文末标签 / 相关推荐 ---------- */
.article-foot{margin-top:34px;padding-top:26px;border-top:1px solid var(--line);}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px;}
.related-title{font-size:15px;color:var(--text-2);font-weight:600;margin-bottom:16px;letter-spacing:.02em;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
@media (max-width:991px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:575px){.related-grid{grid-template-columns:minmax(0,1fr);}}
.mini-card{
  display:flex;flex-direction:column;gap:12px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--panel);box-shadow:var(--shadow-card);
  padding:14px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.mini-card:hover{color:var(--text);border-color:var(--line-strong);box-shadow:var(--shadow-card-hover);transform:translateY(-1px);}
.mini-thumb{
  position:relative;overflow:hidden;border-radius:var(--r-img);
  aspect-ratio:16/10;background:#0d1917;
}
.mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.mini-card:hover .mini-thumb img{transform:scale(1.03);}
.mini-card h4{font-size:15px;line-height:1.5;font-weight:600;margin:0;}
.mini-card .mini-meta{font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  margin-top:var(--section-gap);
  border:1px solid var(--line);border-radius:var(--r-card);
  background:
    radial-gradient(600px 200px at 18% 20%, rgba(31,209,165,.08), transparent 72%),
    var(--panel);
  box-shadow:var(--shadow-card);
  padding:clamp(24px,3.4vw,36px);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.cta-band h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:8px;}
.cta-band p{color:var(--text-2);font-size:14.5px;margin:0;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;flex-wrap:wrap;}
@media (max-width:767px){
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .lk-btn{flex:1 1 auto;}
}

/* ---------- FAQ ---------- */
.faq-section{margin-top:var(--section-gap);}
.section-head{margin-bottom:26px;max-width:720px;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:10px;}
.section-head p{color:var(--text-2);font-size:15px;margin:0;}
.faq-accordion .accordion-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.faq-accordion .accordion-item:last-child{margin-bottom:0;}
.faq-accordion .accordion-button{
  background:transparent;color:var(--text);
  font-size:15.5px;font-weight:600;line-height:1.6;
  padding:18px 52px 18px 20px;
  box-shadow:none;border:0;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--primary);
  background:rgba(255,255,255,.03);
  box-shadow:none;
}
.faq-accordion .accordion-button:focus{box-shadow:none;border:0;outline:2px solid var(--primary);outline-offset:-2px;}
.faq-accordion .accordion-button::after{
  display:none;
}
.faq-accordion .accordion-button .faq-icon{
  position:absolute;right:18px;top:50%;transform:translateY(-50%);
  width:22px;height:22px;display:grid;place-items:center;
  color:var(--text-3);font-size:13px;transition:transform .16s ease,color .16s ease;
}
.faq-accordion .accordion-button:not(.collapsed) .faq-icon{color:var(--primary);transform:translateY(-50%) rotate(45deg);}
.faq-accordion .accordion-body{
  padding:0 20px 20px;
  color:var(--text-2);font-size:14.8px;line-height:1.85;
  border-top:1px solid rgba(31,209,165,.25);
  background:rgba(255,255,255,.03);
  padding-top:16px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--section-gap);
  background:var(--footer-bg);
  border-top:1px solid var(--line);
  padding:clamp(40px,5vw,64px) 0 26px;
  position:relative;z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.7fr) minmax(0,.8fr) minmax(0,.8fr) minmax(0,1.15fr);
  gap:32px;
  padding-bottom:34px;
  border-bottom:1px solid var(--line);
}
@media (max-width:991px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}}
@media (max-width:575px){.footer-grid{grid-template-columns:minmax(0,1fr);}}
.footer-brand p{color:var(--text-3);font-size:13.5px;line-height:1.8;margin:16px 0 0;max-width:420px;}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:14px;font-weight:600;letter-spacing:.02em;}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:9px;}
.footer-col ul a{font-size:13.5px;color:var(--text-3);}
.footer-col ul a:hover{color:var(--primary);}
.footer-col p{font-size:13.5px;color:var(--text-3);line-height:1.8;margin:0;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding-top:22px;font-size:12.5px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.to-top{
  width:42px;height:42px;display:grid;place-items:center;
  border-radius:var(--r-chip);border:1px solid var(--line);
  color:var(--text-2);background:transparent;
}
.to-top:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(31,209,165,.08);}

@media (max-width:991px){
  .site-header .header-inner{min-height:60px;gap:12px;}
  .brand-text small{display:none;}
  .header-actions .lk-btn{display:none;}
  .brand-mark{width:34px;height:34px;}
  .article-title{-webkit-line-clamp:3;}
}
@media (max-width:575px){
  body{font-size:16px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-meta{font-size:12.5px;}
  .lk-btn{width:100%;}
  .header-actions .icon-btn{width:38px;height:38px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .mini-card:hover{transform:none;}
  .mini-card:hover .mini-thumb img{transform:none;}
  .lk-btn:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --bg:#0A1210;
  --panel:#101B18;
  --card:#13211D;
  --footer-bg:#08100E;
  --primary:#1FD1A5;
  --primary-hover:#35E7B8;
  --primary-active:#17B08C;
  --accent:#FFB45C;
  --danger:#FF5F5B;
  --text:#EAF3EF;
  --text-2:#9DB2AA;
  --text-3:#6C847C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(31,209,165,.35);
  --r-card:14px;
  --r-btn:10px;
  --r-chip:999px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:8px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 10px 30px rgba(0,0,0,.35);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Manrope","Inter",system-ui,sans-serif;
  --bs-body-bg:var(--bg);
  --bs-body-color:var(--text);
  --bs-primary:var(--primary);
  --bs-link-color:var(--primary);
  --bs-link-hover-color:var(--primary-hover);
  --bs-border-radius:var(--r-btn);
  --bs-font-sans-serif:var(--font-cn);
  --bs-border-color:var(--line);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:
    radial-gradient(760px 420px at 12% -6%, rgba(31,209,165,.12), transparent 62%),
    radial-gradient(620px 380px at 94% 3%, rgba(255,180,92,.06), transparent 60%),
    var(--bg);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
a:hover{color:var(--primary-hover)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(31,209,165,.28);color:var(--text)}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(10,18,16,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  display:grid;place-items:center;width:40px;height:40px;
  border-radius:var(--r-btn);
  background:rgba(31,209,165,.08);
  border:1px solid var(--line);
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text)}
.brand-text small{font-size:11px;color:var(--text-3);letter-spacing:.01em;white-space:nowrap;margin-top:3px}

.chip-nav{
  display:flex;align-items:center;gap:6px;
  flex:1 1 auto;min-width:0;
  overflow-x:auto;overflow-y:hidden;
  padding:4px 2px;
  scrollbar-width:none;-ms-overflow-style:none;
  -webkit-overflow-scrolling:touch;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:36px;padding:0 14px;
  border-radius:var(--r-chip);
  font-size:14px;line-height:1;
  color:var(--text-2);
  border:1px solid transparent;
  background:transparent;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.chip:hover{background:rgba(255,255,255,.06);color:var(--text)}
.chip.active{
  background:rgba(31,209,165,.12);
  color:var(--primary);
  border-color:rgba(31,209,165,.4);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:38px;height:38px;border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:transparent;color:var(--text-2);
  place-items:center;cursor:pointer;
  transition:color .16s ease,border-color .16s ease,background-color .16s ease;
}
.nav-toggle:hover{color:var(--text);border-color:var(--line-strong);background:rgba(255,255,255,.04)}

/* ---------- buttons ---------- */
.lk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.lk-btn-sm{height:38px;padding:0 16px;font-size:14px}
.lk-btn-primary{
  background:var(--primary);color:#05130F;
  box-shadow:0 0 0 1px rgba(31,209,165,.5), 0 8px 24px rgba(31,209,165,.25);
}
.lk-btn-primary:hover{
  background:var(--primary-hover);color:#05130F;transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(31,209,165,.6), 0 12px 30px rgba(31,209,165,.35);
}
.lk-btn-primary:active{background:var(--primary-active);transform:none;box-shadow:0 0 0 1px rgba(31,209,165,.5), 0 4px 14px rgba(31,209,165,.2)}
.lk-btn-ghost{background:transparent;color:var(--text);border-color:rgba(255,255,255,.16)}
.lk-btn-ghost:hover{background:rgba(31,209,165,.08);border-color:var(--line-strong);color:var(--text);transform:translateY(-1px)}
.lk-btn-ghost:active{transform:none}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  color:var(--text-2);background:transparent;
  transition:color .16s ease,border-color .16s ease,background-color .16s ease;
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(31,209,165,.08)}

/* ---------- page shell ---------- */
.page-main{padding-bottom:clamp(56px,7vw,96px)}
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  padding:28px 0 0;
}
.breadcrumb-line a{color:var(--text-2)}
.breadcrumb-line a:hover{color:var(--primary)}
.breadcrumb-line .sep{color:var(--text-3);opacity:.7}
.breadcrumb-line .current{color:var(--text-2)}

.cat-hero{padding:18px 0 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 12px;
  border-radius:var(--r-chip);
  background:rgba(31,209,165,.1);
  border:1px solid rgba(31,209,165,.28);
  font-size:12px;letter-spacing:.02em;color:var(--primary);
  font-family:var(--font-num);
}
.eyebrow span{font-family:var(--font-cn);letter-spacing:.02em}
.cat-hero h1{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.22;font-weight:700;
  letter-spacing:.01em;
  margin:18px 0 14px;
  max-width:900px;
}
.cat-hero .lead{
  font-size:15.5px;line-height:1.85;color:var(--text-2);
  max-width:840px;
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:22px;
}
.meta-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;
  border-radius:var(--r-badge);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.meta-tag i{color:var(--primary);font-size:12px}
.meta-tag b{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--text);font-weight:600}

/* ---------- entry layout ---------- */
.entry-layout{
  display:grid;
  grid-template-columns:200px minmax(0,1fr);
  gap:44px;
  margin-top:clamp(32px,4vw,52px);
  align-items:start;
}
.entry-aside{position:sticky;top:96px;align-self:start}
.aside-title{
  font-size:12px;letter-spacing:.06em;color:var(--text-3);
  text-transform:uppercase;font-family:var(--font-num);
  margin-bottom:14px;
}
.anchor-list{display:flex;flex-direction:column;gap:2px}
.anchor-list a{
  display:flex;align-items:center;
  min-height:44px;padding:8px 12px;
  border-left:2px solid var(--line);
  font-size:14px;color:var(--text-2);
  transition:color .16s ease,border-color .16s ease,background-color .16s ease;
}
.anchor-list a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.anchor-list a.is-active{
  color:var(--primary);
  border-left-color:var(--primary);
  background:rgba(31,209,165,.06);
}
.aside-note{
  margin-top:24px;
  padding:14px;
  border-radius:var(--r-card);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.aside-note img{
  width:100%;height:110px;object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line);
}
.aside-note p{
  margin-top:12px;font-size:13px;line-height:1.7;color:var(--text-3);
}

.entry-group{padding-bottom:34px}
.entry-group + .entry-group{
  border-top:1px solid var(--line);
  padding-top:34px;
}
.group-head{margin-bottom:6px}
.group-head .idx{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:12px;letter-spacing:.08em;color:var(--accent);
}
.group-head h2{
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.35;font-weight:700;
  margin:8px 0 10px;
}
.group-desc{font-size:15px;line-height:1.85;color:var(--text-2);max-width:760px}

.point-list{margin-top:20px;border-top:1px solid var(--line)}
.point-list li{
  display:grid;
  grid-template-columns:48px minmax(0,1fr);
  gap:18px;
  padding:20px 4px;
  border-bottom:1px solid var(--line);
  transition:background-color .18s ease;
}
.point-list li:hover{background:rgba(255,255,255,.04)}
.point-list .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;
  border-radius:var(--r-badge);
  border:1px solid var(--line-strong);
  color:var(--primary);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:14px;font-weight:600;
  background:rgba(31,209,165,.07);
}
.point-list h3{
  font-size:17px;line-height:1.5;font-weight:600;
  margin-bottom:6px;
}
.point-list p{font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- qa ---------- */
.qa-section{margin-top:clamp(40px,5vw,64px)}
.section-head{margin-bottom:24px}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.32;font-weight:700;
  margin-bottom:10px;
}
.section-head p{font-size:14.5px;color:var(--text-2);max-width:720px}

.qa-list{display:flex;flex-direction:column;gap:12px}
.qa{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:border-color .2s ease;
}
.qa:hover{border-color:var(--line-strong)}
.qa summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 20px;
  cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;line-height:1.5;
  color:var(--text);
}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{
  content:"+";
  flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  width:24px;height:24px;
  border-radius:var(--r-badge);
  border:1px solid var(--line-strong);
  color:var(--primary);
  font-family:var(--font-num);font-size:15px;line-height:1;
  transition:transform .16s ease,background-color .16s ease;
}
.qa[open] summary::after{
  content:"×";
  transform:rotate(90deg);
  background:rgba(31,209,165,.12);
}
.qa[open] summary{border-bottom:1px solid rgba(31,209,165,.25)}
.qa .qa-body{
  padding:16px 20px 20px;
  background:rgba(255,255,255,.03);
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ---------- cta ---------- */
.cta-bar{
  margin-top:clamp(44px,5.5vw,72px);
  padding:clamp(26px,3.4vw,38px);
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:
    radial-gradient(520px 200px at 8% 20%, rgba(31,209,165,.08), transparent 70%),
    var(--panel);
  box-shadow:var(--shadow-card);
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.cta-bar h2{
  font-size:clamp(21px,2.3vw,27px);
  line-height:1.4;font-weight:700;margin-bottom:8px;
}
.cta-bar p{font-size:14.5px;color:var(--text-2);max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{
  background:var(--footer-bg);
  border-top:1px solid var(--line);
  padding:clamp(40px,5vw,64px) 0 26px;
  margin-top:clamp(48px,6vw,80px);
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.3fr;
  gap:36px;
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;line-height:1.85;color:var(--text-2);
  max-width:420px;
}
.footer-col h4{
  font-size:14px;font-weight:600;color:var(--text);
  margin-bottom:14px;letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:var(--text-2)}
.footer-col ul a:hover{color:var(--primary)}
.footer-col p{font-size:13.5px;line-height:1.85;color:var(--text-3)}
.footer-bottom{
  margin-top:36px;padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom span{font-variant-numeric:tabular-nums}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .entry-layout{grid-template-columns:184px minmax(0,1fr);gap:32px}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:28px}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:991.98px){
  .header-inner{height:60px;gap:12px}
  .site-header{height:auto}
  .nav-toggle{display:grid}
  .chip-nav{
    position:absolute;left:0;right:0;top:60px;
    flex-direction:column;align-items:stretch;
    gap:4px;padding:12px 16px 16px;
    background:rgba(10,18,16,.97);
    border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;
    opacity:0;pointer-events:none;
    transition:max-height .22s ease,opacity .18s ease;
  }
  .chip-nav.open{
    max-height:420px;overflow-y:auto;
    opacity:1;pointer-events:auto;
  }
  .chip{height:44px;justify-content:flex-start;border-radius:var(--r-btn)}
  .header-actions .lk-btn-sm{display:none}
  .entry-layout{grid-template-columns:minmax(0,1fr);gap:24px}
  .entry-aside{
    position:static;
    border:1px solid var(--line);
    border-radius:var(--r-card);
    background:var(--panel);
    padding:16px;
  }
  .anchor-list{flex-direction:row;flex-wrap:wrap;gap:8px}
  .anchor-list a{
    border-left:0;
    border-radius:var(--r-chip);
    border:1px solid var(--line);
    padding:0 14px;
    min-height:40px;
  }
  .anchor-list a.is-active{
    border-color:rgba(31,209,165,.4);
    background:rgba(31,209,165,.12);
  }
  .aside-note{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1 / -1}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:767.98px){
  .wrap{padding:0 20px}
  .brand-text small{display:none}
  .brand-mark{width:36px;height:36px}
  .breadcrumb-line{padding-top:22px}
  .cat-hero h1{max-width:none}
  .point-list li{grid-template-columns:40px minmax(0,1fr);gap:14px;padding:18px 2px}
  .point-list .num{width:36px;height:36px;font-size:13px}
  .cta-bar{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .lk-btn{flex:1 1 auto}
}
@media (max-width:575.98px){
  body{font-size:15.5px}
  .wrap{padding:0 20px}
  .header-inner{height:58px}
  .cat-hero h1{font-size:clamp(24px,7vw,32px)}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .hero-meta{gap:8px}
  .meta-tag{font-size:12px;height:30px;padding:0 12px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .lk-btn:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --bg:#0A1210;
  --panel:#101B18;
  --card:#13211D;
  --footer-bg:#08100E;
  --primary:#1FD1A5;
  --primary-hover:#35E7B8;
  --primary-active:#17B08C;
  --amber:#FFB45C;
  --coral:#FF5F5B;
  --text:#EAF3EF;
  --text-2:#9DB2AA;
  --text-3:#6C847C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(31,209,165,.35);
  --r-card:14px;
  --r-btn:10px;
  --r-chip:999px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:8px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 10px 30px rgba(0,0,0,.35);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Manrope","Inter",system-ui,-apple-system,sans-serif;

  --bs-body-bg:#0A1210;
  --bs-body-color:#EAF3EF;
  --bs-primary:#1FD1A5;
  --bs-link-color:#35E7B8;
  --bs-link-hover-color:#1FD1A5;
  --bs-border-radius:.625rem;
  --bs-font-sans-serif:var(--font-cn);
  --bs-body-font-family:var(--font-cn);
}

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

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  margin:0;
  position:relative;
  overflow-x:hidden;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  text-align:left;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

body::before{
  content:"";
  position:absolute;
  left:-16%;
  top:-260px;
  width:62vw;
  height:62vw;
  max-width:860px;
  max-height:860px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(31,209,165,.12), rgba(31,209,165,0) 66%);
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:absolute;
  right:-14%;
  top:1180px;
  width:50vw;
  height:50vw;
  max-width:720px;
  max-height:720px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(255,180,92,.06), rgba(255,180,92,0) 68%);
  pointer-events:none;
  z-index:0;
}

img{max-width:100%;height:auto;display:block;border-radius:var(--r-img)}
a{color:var(--primary-hover);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary)}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.15}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3}
h3{font-size:20px;line-height:1.45;font-weight:600}
h4{font-size:16px;line-height:1.5;font-weight:600}

a:focus-visible,
button:focus-visible,
summary:focus-visible,
.lk-btn:focus-visible,
.chip:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:var(--r-btn);
}

.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:40;
  background:rgba(10,18,16,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text);
  text-decoration:none;
}
.brand:hover{color:var(--text)}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:11px;
  background:rgba(31,209,165,.1);
  border:1px solid rgba(31,209,165,.25);
  flex:0 0 auto;
}
.brand-text strong{
  display:block;
  font-size:16px;
  font-weight:700;
  line-height:1.2;
  letter-spacing:.01em;
}
.brand-text small{
  display:block;
  font-size:11px;
  line-height:1.3;
  color:var(--text-3);
  letter-spacing:.02em;
  margin-top:2px;
}

.chip-nav{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1 1 auto;
  min-width:0;
  overflow-x:auto;
  padding:4px 2px;
  scrollbar-width:none;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 14px),transparent);
  mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 14px),transparent);
}
.chip-nav::-webkit-scrollbar{display:none}

.chip{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 14px;
  border-radius:var(--r-chip);
  border:1px solid transparent;
  font-size:14px;
  line-height:1;
  color:var(--text-2);
  text-decoration:none;
  white-space:nowrap;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.chip:hover{background:rgba(255,255,255,.06);color:var(--text)}
.chip.active{
  background:rgba(31,209,165,.12);
  color:var(--primary);
  border-color:rgba(31,209,165,.4);
}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
  flex:0 0 auto;
}

/* ============ 按钮 ============ */
.lk-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  text-decoration:none;
  cursor:pointer;
  transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease,color .2s ease;
  font-family:var(--font-cn);
}
.lk-btn-primary{
  background:var(--primary);
  color:#05130F;
  box-shadow:0 0 0 1px rgba(31,209,165,.5), 0 8px 24px rgba(31,209,165,.25);
}
.lk-btn-primary:hover{
  background:var(--primary-hover);
  color:#05130F;
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(31,209,165,.65), 0 10px 30px rgba(31,209,165,.34);
}
.lk-btn-primary:active{background:var(--primary-active);transform:translateY(0)}
.lk-btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:rgba(255,255,255,.16);
}
.lk-btn-ghost:hover{
  border-color:var(--primary);
  background:rgba(31,209,165,.08);
  color:var(--text);
  transform:translateY(-1px);
}
.lk-btn-ghost:active{transform:translateY(0)}
.lk-btn-sm{height:38px;padding:0 16px;font-size:14px}

.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.12);
  background:transparent;
  color:var(--text-2);
  text-decoration:none;
  font-size:14px;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.06);color:var(--text);border-color:rgba(31,209,165,.4)}

/* ============ 通用标签 / 徽章 ============ */
.tag{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 12px;
  border-radius:var(--r-chip);
  background:rgba(31,209,165,.1);
  border:1px solid rgba(31,209,165,.32);
  color:var(--primary);
  font-size:12px;
  letter-spacing:.02em;
  line-height:1;
}
.badge-lk{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:var(--r-badge);
  font-size:12px;
  line-height:1;
  letter-spacing:.02em;
  white-space:nowrap;
}
.badge-teal{background:rgba(31,209,165,.12);color:var(--primary);border:1px solid rgba(31,209,165,.32)}
.badge-amber{background:rgba(255,180,92,.12);color:var(--amber);border:1px solid rgba(255,180,92,.32)}
.badge-gray{background:rgba(255,255,255,.05);color:var(--text-2);border:1px solid var(--line)}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  padding:26px 0 0;
}
.crumbs a{color:var(--text-2);text-decoration:none}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:var(--text-3);opacity:.7}
.crumbs .current{color:var(--text-2)}

/* ============ 页面头部 ============ */
.page-hero{
  position:relative;
  padding:22px 0 46px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(90deg, rgba(10,18,16,.96) 0%, rgba(10,18,16,.82) 46%, rgba(10,18,16,.62) 100%), url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  opacity:.55;
  z-index:0;
  pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:1}
.page-hero h1{
  margin:18px 0 0;
  max-width:22ch;
  letter-spacing:.005em;
}
.hero-lead{
  margin:16px 0 0;
  max-width:64ch;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:24px;
  font-size:13px;
  color:var(--text-3);
}
.hero-meta span{
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.hero-meta i{color:var(--primary);font-size:12px}
.hero-meta b{
  color:var(--text);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-weight:600;
}

/* ============ 板块 ============ */
.section{
  padding:clamp(56px,7vw,92px) 0 0;
}
.sec-head{
  max-width:720px;
  margin-bottom:34px;
}
.sec-head h2{margin-bottom:10px}
.sec-head p{
  margin:0;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}
.sec-head .kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--text-3);
  margin-bottom:12px;
}
.sec-head .kicker::before{
  content:"";
  width:18px;
  height:1px;
  background:var(--primary);
  opacity:.7;
}

/* ============ 时间轴 ============ */
.timeline{
  list-style:none;
  position:relative;
  padding:0;
  margin:0;
}
.timeline::before{
  content:"";
  position:absolute;
  left:17px;
  top:16px;
  bottom:18px;
  width:1px;
  background:linear-gradient(180deg,rgba(31,209,165,.55),rgba(31,209,165,.14) 62%,rgba(31,209,165,.03));
}
.tl-item{
  position:relative;
  padding-left:54px;
  margin-bottom:18px;
}
.tl-item:last-child{margin-bottom:0}
.tl-dot{
  position:absolute;
  left:12px;
  top:26px;
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(31,209,165,.14);
}
.tl-item.is-amber .tl-dot{
  background:var(--amber);
  box-shadow:0 0 0 4px rgba(255,180,92,.14);
}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--shadow-card);
  transition:border-color .2s ease,background .2s ease;
}
.tl-card:hover{border-color:var(--line-strong)}
.tl-top{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 14px;
  margin-bottom:10px;
}
.tl-step{
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.04em;
  color:rgba(31,209,165,.8);
  font-variant-numeric:tabular-nums;
}
.tl-top h3{
  font-size:19px;
  margin:0;
  flex:1 1 auto;
  min-width:0;
}
.tl-card p{
  margin:0;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}
.tl-card p + p{margin-top:8px}
.tl-note{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:14px;
  font-size:13px;
  color:var(--text-3);
}
.tl-note i{color:var(--primary);font-size:12px}

/* ============ 本期焦点 ============ */
.focus-card{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  gap:0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.focus-media{
  position:relative;
  min-height:280px;
  background:#0D1917;
  overflow:hidden;
}
.focus-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
  border-radius:0;
  transition:transform .35s ease;
}
.focus-card:hover .focus-media img{transform:scale(1.03)}
.focus-body{
  padding:32px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.focus-body h2{font-size:clamp(22px,2.2vw,28px);margin-bottom:12px}
.focus-body > p{
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
  margin-bottom:18px;
}
.check-list{
  list-style:none;
  margin:0 0 24px;
  padding:0;
}
.check-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:10px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.8;
}
.check-list li:last-child{margin-bottom:0}
.check-list li::before{
  content:"";
  position:absolute;
  left:6px;
  top:11px;
  width:7px;
  height:7px;
  border-radius:2px;
  background:var(--primary);
  opacity:.85;
}
.focus-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 信息一览列表 ============ */
.info-list{
  list-style:none;
  margin:0;
  padding:0;
  border-top:1px solid var(--line);
}
.info-row{
  display:grid;
  grid-template-columns:54px minmax(0,1fr) auto;
  gap:18px;
  align-items:center;
  padding:20px 6px;
  border-bottom:1px solid var(--line);
  transition:background .16s ease;
}
.info-row:hover{background:rgba(255,255,255,.04)}
.info-num{
  font-family:var(--font-num);
  font-size:14px;
  letter-spacing:.04em;
  color:rgba(31,209,165,.75);
  font-variant-numeric:tabular-nums;
}
.info-text strong{
  display:block;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  margin-bottom:4px;
}
.info-text span{
  display:block;
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
}
.info-row .badge-lk{justify-self:end}

/* ============ FAQ ============ */
.faq{
  display:grid;
  gap:12px;
}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  transition:border-color .18s ease;
}
.faq-item[open]{border-color:rgba(31,209,165,.25)}
.faq-item summary{
  position:relative;
  list-style:none;
  cursor:pointer;
  padding:18px 56px 18px 22px;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--text);
  border-radius:var(--r-card);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:20px;
  top:50%;
  transform:translateY(-50%);
  font-size:18px;
  font-weight:400;
  color:var(--text-2);
  transition:transform .16s ease,color .16s ease;
}
.faq-item[open] summary::after{
  content:"–";
  color:var(--primary);
  transform:translateY(-50%) rotate(180deg);
}
.faq-item summary:hover{color:var(--primary-hover)}
.faq-body{
  padding:0 22px 20px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
  border-top:1px solid rgba(255,255,255,.03);
  background:rgba(255,255,255,.03);
  border-radius:0 0 var(--r-card) var(--r-card);
  margin-top:-1px;
  padding-top:16px;
}

/* ============ 底部 CTA ============ */
.cta-bar{
  margin-top:clamp(56px,7vw,92px);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:32px 36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  background:
    radial-gradient(120% 160% at 8% 0%, rgba(31,209,165,.08), rgba(31,209,165,0) 62%),
    var(--panel);
  box-shadow:var(--shadow-card);
}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:8px}
.cta-bar p{margin:0;color:var(--text-2);font-size:15px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:clamp(56px,7vw,96px);
  background:var(--footer-bg);
  border-top:1px solid var(--line);
  padding:56px 0 26px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.7fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr);
  gap:36px;
}
.footer-brand p{
  margin:18px 0 0;
  max-width:42ch;
  font-size:14px;
  line-height:1.9;
  color:var(--text-2);
}
.footer-col h4{
  font-size:14px;
  letter-spacing:.02em;
  color:var(--text);
  margin-bottom:16px;
}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{
  font-size:14px;
  color:var(--text-2);
  text-decoration:none;
  transition:color .16s ease;
}
.footer-col a:hover{color:var(--primary)}
.footer-col p{
  font-size:14px;
  line-height:1.9;
  color:var(--text-2);
  margin:0;
}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.to-top{
  position:fixed;
  right:22px;
  bottom:22px;
  width:46px;
  height:46px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(19,33,29,.9);
  border:1px solid var(--line-strong);
  color:var(--primary);
  font-size:15px;
  text-decoration:none;
  z-index:50;
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  transition:background .18s ease,transform .18s ease,color .18s ease;
}
.to-top:hover{background:rgba(31,209,165,.16);color:var(--text);transform:translateY(-2px)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .focus-card{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .focus-body{padding:26px}
}
@media (max-width:991px){
  .header-inner{height:64px;gap:12px}
  .brand-text small{display:none}
  .chip-nav{order:3;flex-basis:100%;margin:0 -24px;padding:0 24px 8px}
  .header-inner{flex-wrap:wrap;height:auto;padding-top:10px}
  .header-actions{margin-left:auto}
  .page-hero{padding-bottom:36px}
  .page-hero h1{max-width:none}
  .focus-card{grid-template-columns:1fr}
  .focus-media{min-height:220px;aspect-ratio:16/9}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
  .footer-brand{grid-column:1/-1}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:26px}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .timeline::before{left:11px}
  .tl-item{padding-left:38px}
  .tl-dot{left:6px;top:24px}
  .tl-card{padding:18px 18px}
  .tl-top h3{font-size:17px;flex-basis:100%}
  .info-row{grid-template-columns:40px minmax(0,1fr);gap:12px}
  .info-row .badge-lk{grid-column:2;justify-self:start;margin-top:2px}
  .faq-item summary{padding:16px 50px 16px 18px;font-size:15px}
  .faq-body{padding:14px 18px 18px}
  .hero-meta{gap:8px 16px}
  .cta-bar{padding:22px 20px}
  .cta-actions{width:100%}
  .cta-actions .lk-btn{flex:1 1 auto}
}
@media (max-width:520px){
  .header-inner{padding-top:8px}
  .header-actions .lk-btn-sm{padding:0 12px;font-size:13px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
  .to-top{right:14px;bottom:14px;width:42px;height:42px}
  .focus-body{padding:20px}
  .check-list li{font-size:14px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    transition-duration:.001ms !important;
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    scroll-behavior:auto !important;
  }
  .lk-btn:hover,.to-top:hover,.focus-card:hover .focus-media img{transform:none !important}
}

/* roulang page: category5 */
:root{
  --bg:#0A1210;
  --panel:#101B18;
  --card:#13211D;
  --footer-bg:#08100E;
  --primary:#1FD1A5;
  --primary-hover:#35E7B8;
  --primary-press:#17B08C;
  --accent:#FFB45C;
  --danger:#FF5F5B;
  --text:#EAF3EF;
  --text-2:#9DB2AA;
  --text-3:#6C847C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(31,209,165,.35);
  --r-card:14px;
  --r-btn:10px;
  --r-chip:999px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:8px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 10px 30px rgba(0,0,0,.35);
  --shadow-btn:0 0 0 1px rgba(31,209,165,.5), 0 8px 24px rgba(31,209,165,.25);
  --space-section:clamp(56px,7vw,96px);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Manrope","Inter","PingFang SC",system-ui,sans-serif;
  --bs-body-bg:#0A1210;
  --bs-body-color:#EAF3EF;
  --bs-primary:#1FD1A5;
  --bs-link-color:#1FD1A5;
  --bs-link-hover-color:#35E7B8;
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-gutter-x:24px;
}
*,*::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:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  text-align:left;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--primary-hover)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;line-height:1.3}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:575px){.wrap{padding:0 20px}}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,18,16,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;display:grid;place-items:center;
  border-radius:10px;border:1px solid var(--line-strong);
  background:linear-gradient(180deg,rgba(31,209,165,.14),rgba(31,209,165,.03));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.01em}
.brand-text small{font-size:11px;color:var(--text-3);letter-spacing:.02em;white-space:nowrap}
.chip-nav{
  display:flex;align-items:center;gap:6px;
  flex:1 1 auto;min-width:0;
  overflow-x:auto;scrollbar-width:none;
  padding:6px 2px;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  height:36px;padding:0 15px;border-radius:var(--r-chip);
  font-size:14px;color:var(--text-2);
  border:1px solid transparent;background:transparent;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
  white-space:nowrap;
}
.chip:hover{background:rgba(255,255,255,.06);color:var(--text)}
.chip.active{
  color:var(--primary);background:rgba(31,209,165,.12);
  border-color:rgba(31,209,165,.4);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;border-radius:10px;
  border:1px solid var(--line);color:var(--text-2);background:transparent;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(31,209,165,.08)}
@media (max-width:991px){
  .header-inner{flex-wrap:wrap;min-height:60px;padding-top:8px;padding-bottom:8px;gap:10px}
  .chip-nav{
    order:3;width:100%;flex:0 0 100%;
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 16px,#000 calc(100% - 16px),transparent);
    mask-image:linear-gradient(90deg,transparent,#000 16px,#000 calc(100% - 16px),transparent);
  }
  .brand-text small{display:none}
  .header-actions{margin-left:auto}
}

/* ---------- buttons ---------- */
.lk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
}
.lk-btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.lk-btn-primary{
  background:var(--primary);color:#05130F;box-shadow:var(--shadow-btn);
}
.lk-btn-primary:hover{background:var(--primary-hover);color:#05130F;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,209,165,.6),0 10px 28px rgba(31,209,165,.32)}
.lk-btn-primary:active{background:var(--primary-press);transform:translateY(0)}
.lk-btn-ghost{
  background:transparent;color:var(--text);border-color:rgba(255,255,255,.16);
}
.lk-btn-ghost:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(31,209,165,.08);transform:translateY(-1px)}
.lk-btn-text{
  min-height:auto;padding:0;background:none;color:var(--primary);
  border:0;border-bottom:1px solid rgba(31,209,165,.4);border-radius:0;
}
.lk-btn-text:hover{border-bottom-color:var(--primary);color:var(--primary-hover)}
.lk-btn[disabled]{opacity:.3;pointer-events:none}

/* ---------- page shell ---------- */
.page-main{padding-bottom:var(--space-section)}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  padding:22px 0 0;
}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:rgba(255,255,255,.18)}
.crumb .cur{color:var(--text-2)}

.page-hero{
  position:relative;
  padding:clamp(28px,4vw,44px) 0 clamp(24px,3vw,34px);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:-38% 42% auto auto;width:520px;height:520px;
  background:radial-gradient(circle,rgba(31,209,165,.12),transparent 65%);
  pointer-events:none;
}
.page-hero-inner{position:relative;max-width:840px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.02em;color:var(--primary);
  border:1px solid var(--line-strong);background:rgba(31,209,165,.08);
  border-radius:var(--r-badge);padding:5px 12px;margin-bottom:16px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(31,209,165,.8)}
.page-hero h1{
  font-size:clamp(28px,3.6vw,44px);line-height:1.2;font-weight:700;
  letter-spacing:0;margin-bottom:14px;
}
.page-hero h1 .hl{color:var(--primary)}
.page-hero .lead{
  font-size:clamp(14px,1.6vw,16px);color:var(--text-2);line-height:1.85;max-width:720px;
}

/* ---------- quick strip ---------- */
.quick-strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--panel);box-shadow:var(--shadow-card);
  margin-top:26px;overflow:hidden;
}
.quick-item{
  padding:18px 22px;display:flex;align-items:center;gap:12px;
  border-right:1px solid var(--line);
}
.quick-item:last-child{border-right:0}
.quick-item i{color:var(--primary);font-size:16px}
.quick-item b{font-family:var(--font-num);font-size:20px;color:var(--text);font-variant-numeric:tabular-nums}
.quick-item span{font-size:13px;color:var(--text-2)}
@media (max-width:767px){
  .quick-strip{grid-template-columns:1fr}
  .quick-item{border-right:0;border-bottom:1px solid var(--line)}
  .quick-item:last-child{border-bottom:0}
}

/* ---------- section head ---------- */
.sec{margin-top:var(--space-section)}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:24px;flex-wrap:wrap;
}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
.sec-head p{font-size:14px;color:var(--text-2);margin-top:8px}
.sec-head .more{font-size:14px;border-bottom:1px solid rgba(31,209,165,.4);padding-bottom:2px}

/* ---------- feature card ---------- */
.feature{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:0;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--card);box-shadow:var(--shadow-card);overflow:hidden;
  transition:border-color .24s ease;
}
.feature:hover{border-color:var(--line-strong)}
.feature-media{position:relative;overflow:hidden;min-height:100%}
.feature-media img{
  width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;object-position:center;
  transition:transform .5s ease;
}
.feature:hover .feature-media img{transform:scale(1.03)}
.feature-media .media-tag{
  position:absolute;left:16px;top:16px;
  font-size:12px;color:#05130F;background:var(--primary);
  padding:4px 10px;border-radius:var(--r-badge);font-weight:600;
}
.feature-body{padding:clamp(22px,3vw,34px)}
.feature-body h3{font-size:clamp(19px,2.2vw,24px);margin-bottom:12px;line-height:1.4}
.feature-body p{font-size:15px;color:var(--text-2);line-height:1.85}
.feature-list{margin-top:18px;display:grid;gap:10px}
.feature-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--text-2);line-height:1.75;
  padding-bottom:10px;border-bottom:1px dashed rgba(255,255,255,.07);
}
.feature-list li:last-child{border-bottom:0;padding-bottom:0}
.feature-list i{color:var(--primary);font-size:13px;margin-top:6px;flex:0 0 auto}
.feature-body .lk-btn{margin-top:22px}
@media (max-width:991px){
  .feature{grid-template-columns:1fr}
  .feature-media img{aspect-ratio:16/10}
}

/* ---------- small grid ---------- */
.mini-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:24px;
}
.mini-card{
  display:flex;gap:16px;align-items:flex-start;
  padding:16px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--card);box-shadow:var(--shadow-card);
  transition:border-color .24s ease,background-color .24s ease,transform .2s ease;
}
.mini-card:hover{border-color:var(--line-strong);background:#16241F;transform:translateY(-1px)}
.mini-thumb{
  flex:0 0 auto;width:104px;height:104px;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:#0D1917;
}
.mini-thumb img{width:100%;height:100%;object-fit:cover;object-position:center;transition:transform .4s ease}
.mini-card:hover .mini-thumb img{transform:scale(1.06)}
.mini-body h4{font-size:16px;line-height:1.45;margin-bottom:6px}
.mini-body p{font-size:13.5px;color:var(--text-2);line-height:1.75}
.mini-body .tag{
  display:inline-block;margin-top:10px;font-size:12px;color:var(--primary);
  background:rgba(31,209,165,.1);border:1px solid rgba(31,209,165,.28);
  border-radius:var(--r-badge);padding:3px 9px;
}
.mini-body .tag.warm{color:var(--accent);background:rgba(255,180,92,.1);border-color:rgba(255,180,92,.3)}
@media (max-width:767px){
  .mini-grid{grid-template-columns:1fr}
  .mini-thumb{width:84px;height:84px}
}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--panel);overflow:hidden;
  transition:border-color .2s ease,background-color .2s ease;
}
.faq-item[open]{border-color:rgba(31,209,165,.25);background:rgba(255,255,255,.03)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  width:26px;height:26px;display:grid;place-items:center;
  border:1px solid var(--line-strong);border-radius:8px;
  color:var(--primary);font-size:16px;line-height:1;
  transition:transform .16s ease,background-color .16s ease;
}
.faq-item[open] summary::after{content:"×";transform:rotate(180deg);background:rgba(31,209,165,.12)}
.faq-item summary:hover{color:var(--primary)}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--text-2);line-height:1.9}
.faq-body p+p{margin-top:10px}
.faq-body strong{color:var(--text);font-weight:600}

/* ---------- cta ---------- */
.cta-band{
  margin-top:var(--space-section);
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(31,209,165,.08),rgba(31,209,165,0) 70%),var(--panel);
  box-shadow:var(--shadow-card);
  padding:clamp(26px,3.6vw,40px);
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(21px,2.4vw,30px);line-height:1.35;max-width:620px}
.cta-band p{font-size:14.5px;color:var(--text-2);margin-top:10px;max-width:640px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:767px){
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .lk-btn{flex:1 1 auto}
}

/* ---------- footer ---------- */
.site-footer{
  margin-top:var(--space-section);
  background:var(--footer-bg);border-top:1px solid var(--line);
  padding:clamp(38px,5vw,58px) 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:32px;
  padding-bottom:36px;
}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.85;max-width:420px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;letter-spacing:.01em}
.footer-col ul{display:grid;gap:10px}
.footer-col li a{font-size:14px;color:var(--text-2)}
.footer-col li a:hover{color:var(--primary)}
.footer-col p{font-size:13.5px;color:var(--text-2);line-height:1.85}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:18px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .num{font-family:var(--font-num)}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .feature:hover .feature-media img,.mini-card:hover .mini-thumb img{transform:none!important}
  .lk-btn:hover{transform:none!important}
}

/* roulang page: category4 */
:root{
  --bg:#0A1210;
  --panel:#101B18;
  --card:#13211D;
  --card-deep:#0E1916;
  --footer-bg:#08100E;
  --primary:#1FD1A5;
  --primary-hover:#35E7B8;
  --primary-press:#17B08C;
  --amber:#FFB45C;
  --coral:#FF5F5B;
  --text:#EAF3EF;
  --text-2:#9DB2AA;
  --text-3:#6C847C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(31,209,165,.35);
  --r-card:14px;
  --r-btn:10px;
  --r-chip:999px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:8px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06),0 10px 30px rgba(0,0,0,.35);
  --shadow-btn:0 0 0 1px rgba(31,209,165,.5),0 8px 24px rgba(31,209,165,.25);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Manrope","Inter",system-ui,sans-serif;
  --gap-block:clamp(56px,7vw,96px);

  --bs-body-bg:#0A1210;
  --bs-body-color:#EAF3EF;
  --bs-primary:#1FD1A5;
  --bs-link-color:#1FD1A5;
  --bs-link-hover-color:#35E7B8;
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-font-family:var(--font-cn);
}

*,*::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:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  text-align:left;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(620px 420px at 10% -6%, rgba(31,209,165,.12), transparent 66%),
    radial-gradient(520px 380px at 94% 6%, rgba(255,180,92,.06), transparent 70%);
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-hover)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:0;line-height:1.28;font-weight:700;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  height:68px;
  background:rgba(10,18,16,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:100%;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text);
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:var(--card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;color:var(--text)}
.brand-text small{font-size:10.5px;color:var(--text-3);letter-spacing:.01em;margin-top:2px}

.chip-nav{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1 1 auto;
  min-width:0;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding:4px 2px;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 14px;
  border-radius:var(--r-chip);
  border:1px solid transparent;
  font-size:13.5px;
  color:var(--text-2);
  white-space:nowrap;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.chip:hover{background:rgba(255,255,255,.06);color:var(--text)}
.chip.active{
  background:rgba(31,209,165,.12);
  color:var(--primary);
  border-color:rgba(31,209,165,.4);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-2);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.icon-btn:hover{border-color:var(--line-strong);color:var(--primary);background:rgba(31,209,165,.08)}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:var(--card);
  color:var(--text);
  align-items:center;justify-content:center;
}
.mobile-drawer{
  display:none;
  position:absolute;
  left:0;right:0;top:100%;
  background:rgba(10,18,16,.97);
  border-bottom:1px solid var(--line);
  padding:14px 20px 18px;
}
.mobile-drawer.open{display:block}
.mobile-drawer .chip{display:flex;width:100%;justify-content:flex-start;margin-bottom:6px;height:44px;padding:0 16px}

/* ---------- buttons ---------- */
.lk-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.lk-btn-sm{height:38px;padding:0 16px;font-size:14px}
.lk-btn-primary{
  background:var(--primary);
  color:#05130F;
  box-shadow:var(--shadow-btn);
}
.lk-btn-primary:hover{
  background:var(--primary-hover);
  color:#05130F;
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(31,209,165,.6),0 10px 28px rgba(31,209,165,.35);
}
.lk-btn-primary:active{background:var(--primary-press);transform:translateY(0)}
.lk-btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:rgba(255,255,255,.16);
}
.lk-btn-ghost:hover{
  border-color:var(--line-strong);
  background:rgba(31,209,165,.08);
  color:var(--primary-hover);
  transform:translateY(-1px);
}
.lk-btn-text{
  height:auto;
  padding:0 0 2px;
  color:var(--primary);
  border:none;
  border-bottom:1px solid rgba(31,209,165,.4);
  border-radius:0;
  background:none;
  font-weight:600;
}
.lk-btn-text:hover{color:var(--primary-hover);border-bottom-color:var(--primary-hover)}
.lk-btn[disabled],.lk-btn.disabled{opacity:.3;pointer-events:none}

/* ---------- generic bits ---------- */
.badge-lk{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:var(--r-badge);
  font-size:12px;
  line-height:1.6;
  font-weight:600;
  letter-spacing:.02em;
}
.badge-mint{background:rgba(31,209,165,.12);color:var(--primary);border:1px solid rgba(31,209,165,.35)}
.badge-amber{background:rgba(255,180,92,.12);color:var(--amber);border:1px solid rgba(255,180,92,.32)}
.badge-gray{background:rgba(255,255,255,.05);color:var(--text-2);border:1px solid var(--line)}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:6px 12px;
  border-radius:var(--r-chip);
  border:1px solid var(--line-strong);
  background:rgba(31,209,165,.08);
  font-size:12px;
  letter-spacing:.02em;
  color:var(--primary);
  font-weight:600;
}
.eyebrow span.en{font-family:var(--font-num);color:var(--text-3);font-weight:600}

.section{padding:var(--gap-block) 0 0}
.section-head{max-width:820px;margin-bottom:28px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15.5px;line-height:1.85}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- crumb + page head ---------- */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-top:22px;
  font-size:13px;
  color:var(--text-3);
}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:rgba(255,255,255,.18)}
.crumb .now{color:var(--text-2)}

.page-head{padding:26px 0 0}
.page-head h1{
  margin-top:18px;
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.2;
  font-weight:700;
}
.page-head .lede{
  margin-top:16px;
  max-width:840px;
  font-size:15.5px;
  color:var(--text-2);
  line-height:1.9;
}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.head-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}

/* ---------- table ---------- */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--card);
  box-shadow:var(--shadow-card);
}
table.cmp{
  width:100%;
  min-width:680px;
  border-collapse:collapse;
}
table.cmp thead th{
  background:var(--card-deep);
  padding:14px 20px;
  text-align:left;
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
table.cmp thead th:first-child{width:230px}
table.cmp tbody td{
  padding:16px 20px;
  font-size:15px;
  color:var(--text);
  border-bottom:1px solid var(--line);
  vertical-align:top;
  line-height:1.8;
}
table.cmp tbody td:first-child{font-weight:600}
table.cmp tbody td .sub{display:block;margin-top:4px;font-size:12.5px;font-weight:400;color:var(--text-3)}
table.cmp tbody tr:last-child td{border-bottom:none}
table.cmp tbody tr{transition:background .18s ease}
table.cmp tbody tr:hover{background:rgba(255,255,255,.04)}
.table-note{
  display:flex;
  gap:10px;
  align-items:flex-start;
  margin-top:16px;
  padding:14px 18px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--panel);
  font-size:13.5px;
  color:var(--text-2);
  line-height:1.8;
}
.table-note i{color:var(--amber);margin-top:4px}

/* ---------- horizontal cards ---------- */
.hcards{display:grid;gap:14px;margin-top:26px}
.hcard{
  display:flex;
  gap:18px;
  padding:22px 24px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--card);
  box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease;
}
.hcard:hover{border-color:var(--line-strong);transform:translateY(-1px)}
.hcard .ico{
  flex:0 0 auto;
  width:48px;height:48px;
  display:grid;place-items:center;
  border-radius:var(--r-btn);
  border:1px solid var(--line-strong);
  background:rgba(31,209,165,.1);
  color:var(--primary);
  font-size:18px;
}
.hcard h3{font-size:17px;margin-bottom:6px}
.hcard p{font-size:14.5px;color:var(--text-2);line-height:1.85}
.hcard .meta{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px}

/* ---------- steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin-top:26px;
  position:relative;
}
.steps::before{
  content:"";
  position:absolute;
  left:8px;right:8px;top:16px;
  height:1px;
  background:linear-gradient(90deg,rgba(31,209,165,.45),rgba(255,180,92,.35));
}
.step{position:relative;padding-top:44px}
.step .dot{
  position:absolute;left:0;top:11px;
  width:10px;height:10px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(31,209,165,.16);
}
.step .step-no{
  font-family:var(--font-num);
  font-size:30px;
  font-weight:700;
  color:rgba(31,209,165,.3);
  line-height:1;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:16px;margin:10px 0 6px}
.step p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ---------- media block ---------- */
.media-block{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:32px;
  align-items:center;
  padding:28px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--card);
  box-shadow:var(--shadow-card);
  margin-top:26px;
}
.media-block .txt h3{font-size:20px;margin-bottom:12px}
.media-block .txt p{font-size:15px;color:var(--text-2);line-height:1.9}
.media-block ul{margin-top:16px;display:grid;gap:10px}
.media-block ul li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--text-2);
}
.media-block ul li i{color:var(--primary);margin-top:5px;font-size:12px}
.media-figure{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:4/3;
  background:var(--card-deep);
}
.media-figure img{width:100%;height:100%;object-fit:cover;object-position:center}

/* ---------- faq ---------- */
.faq-list{margin-top:26px}
.accordion-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.accordion-item:hover{border-color:rgba(31,209,165,.2)}
.accordion-button{
  background:var(--card);
  color:var(--text);
  font-size:15.5px;
  font-weight:600;
  padding:16px 20px;
  box-shadow:none;
  border-radius:var(--r-card);
  display:flex;
  align-items:center;
  gap:12px;
}
.accordion-button:focus{box-shadow:none;border-color:var(--line-strong)}
.accordion-button:not(.collapsed){
  background:rgba(255,255,255,.03);
  color:var(--primary);
  box-shadow:inset 0 -1px 0 var(--line);
}
.accordion-button::after{
  content:"+";
  background-image:none;
  width:auto;height:auto;
  font-family:var(--font-num);
  font-size:19px;
  line-height:1;
  color:var(--primary);
  margin-left:auto;
  transform:none;
  transition:transform .16s ease;
  display:grid;
  place-items:center;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:rotate(0deg)}
.accordion-body{
  padding:16px 20px 20px;
  font-size:14.8px;
  color:var(--text-2);
  line-height:1.9;
  background:rgba(255,255,255,.03);
  border-top:1px solid rgba(31,209,165,.25);
}

/* ---------- cta ---------- */
.cta-bar{
  margin-top:var(--gap-block);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:30px 34px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:
    radial-gradient(420px 200px at 18% 20%, rgba(31,209,165,.08), transparent 70%),
    var(--panel);
  box-shadow:var(--shadow-card);
}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px);line-height:1.35}
.cta-bar p{margin-top:8px;font-size:14.5px;color:var(--text-2)}
.cta-bar .actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{
  margin-top:var(--gap-block);
  background:var(--footer-bg);
  border-top:1px solid var(--line);
  padding:48px 0 24px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  color:var(--text-3);
  line-height:1.9;
  max-width:420px;
}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:14px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col li a{font-size:14px;color:var(--text-3)}
.footer-col li a:hover{color:var(--primary)}
.footer-col p{font-size:13.5px;color:var(--text-3);line-height:1.9}
.footer-bottom{
  margin-top:36px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  font-size:13px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
}
@media (max-width:991px){
  .site-header{height:60px}
  .chip-nav{display:none}
  .nav-toggle{display:flex}
  .header-actions .lk-btn{display:none}
  .brand-text small{display:none}
  .media-block{grid-template-columns:1fr}
  .media-figure{order:-1;aspect-ratio:16/10}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1/-1}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:26px}
}
@media (max-width:767px){
  .steps{grid-template-columns:1fr;gap:8px}
  .step{padding-top:0;padding-left:26px;padding-bottom:16px;border-left:1px solid var(--line);margin-left:5px}
  .step .dot{top:8px;left:-5px}
  .step .step-no{font-size:24px}
  .hcard{flex-direction:row;padding:18px}
  .hcard .ico{width:42px;height:42px;font-size:16px}
  .page-head h1{font-size:clamp(26px,6.4vw,32px)}
  .cta-bar{padding:22px}
}
@media (max-width:575px){
  .wrap{padding:0 20px}
  body{font-size:15.5px}
  .table-wrap{border-radius:12px}
  table.cmp{min-width:560px}
  table.cmp thead th,table.cmp tbody td{padding:13px 14px}
  .footer-grid{grid-template-columns:1fr}
  .head-actions .lk-btn{flex:1 1 100%}
  .cta-bar .actions{width:100%}
  .cta-bar .actions .lk-btn{flex:1 1 100%}
  .footer-bottom{flex-direction:column}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .lk-btn:hover,.hcard:hover{transform:none!important}
}