/* roulang page: index */
:root{
  --bg-deep:#070B16;
  --bg-panel:#0B1224;
  --bg-elevated:#101A33;
  --primary:#2DE2E6;
  --primary-strong:#18B8C9;
  --accent:#7C5CFF;
  --cta:#FF9F43;
  --cta-soft:#FFB86B;
  --text-main:#EAF2FF;
  --text-muted:#93A4C3;
  --line:rgba(120,200,255,.18);
  --glass:rgba(255,255,255,.06);
  --glow:rgba(45,226,230,.35);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 18px 50px rgba(0,0,0,.35);
  --section-gap:104px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg-deep);
  color:var(--text-main);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  position:relative;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(circle at 12% 8%, rgba(45,226,230,.16), transparent 42%),
    radial-gradient(circle at 88% 22%, rgba(124,92,255,.14), transparent 46%),
    radial-gradient(circle at 50% 100%, rgba(255,159,67,.08), transparent 52%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.35;
  background-image:
    linear-gradient(rgba(120,200,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,200,255,.045) 1px, transparent 1px);
  background-size:64px 64px;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--cta)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:none;
  box-shadow:0 0 0 4px rgba(45,226,230,.25);
  border-radius:var(--radius-sm);
}
h1,h2,h3,h4{font-weight:700;letter-spacing:.01em;line-height:1.35;margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{max-width:1240px;position:relative;z-index:1}
.section{padding:var(--section-gap) 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);margin-bottom:14px;
}
.section-head .eyebrow::before{
  content:"";width:22px;height:1px;background:var(--primary);display:inline-block;
}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.section-head p{color:var(--text-muted);max-width:72ch}
.text-muted-soft{color:var(--text-muted)}
.mono-num{font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,11,22,.82);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid var(--line);
}
.nav-inner{height:76px;display:flex;align-items:center;gap:28px}
.brand{
  display:flex;align-items:center;gap:12px;
  color:var(--text-main);font-weight:700;font-size:18px;flex-shrink:0;
}
.brand:hover{color:var(--text-main)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg, rgba(45,226,230,.9), rgba(124,92,255,.85));
  box-shadow:0 0 0 1px rgba(255,255,255,.14), 0 10px 24px rgba(45,226,230,.25);
  color:#04121A;font-size:17px;
}
.brand-text small{display:block;font-size:11px;font-weight:400;color:var(--text-muted);letter-spacing:.12em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-pill{
  position:relative;
  padding:10px 16px;border-radius:999px;
  font-size:14.5px;color:var(--text-muted);
  transition:color .22s ease,background .22s ease,transform .22s ease;
}
.nav-pill::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%) scaleX(0);
  width:26px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 12px var(--glow);
  transition:transform .24s ease;
}
.nav-pill:hover{color:var(--text-main);background:var(--glass)}
.nav-pill:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-pill.active{
  color:var(--text-main);
  background:var(--glass);
  border:1px solid var(--line);
}
.nav-pill.active::after{transform:translateX(-50%) scaleX(1)}
.nav-cta{margin-left:14px}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:14px;font-weight:700;font-size:15.5px;
  color:#20120A;border:none;
  background:linear-gradient(135deg,var(--cta),var(--cta-soft));
  box-shadow:0 0 0 1px rgba(255,255,255,.12), 0 12px 30px rgba(255,159,67,.28);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-cta:hover{color:#20120A;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(255,255,255,.16), 0 18px 38px rgba(255,159,67,.36)}
.btn-cta:active{transform:translateY(1px)}
.btn-cta.pill{border-radius:999px;height:46px;padding:0 24px;font-size:15px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 24px;border-radius:14px;font-weight:600;font-size:15.5px;
  color:var(--text-main);background:var(--glass);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.btn-ghost:hover{color:var(--text-main);border-color:rgba(45,226,230,.55);transform:translateY(-2px);background:rgba(45,226,230,.08)}
.btn-ghost:active{transform:translateY(1px)}
.btn-line{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--primary);font-weight:600;font-size:14.5px;
  border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease;
}
.btn-line:hover{color:var(--cta);border-bottom-color:var(--cta)}
.nav-toggle{
  margin-left:auto;display:none;
  width:46px;height:46px;border-radius:14px;
  background:var(--glass);border:1px solid var(--line);color:var(--text-main);
  align-items:center;justify-content:center;font-size:17px;
}
.offcanvas{
  background:var(--bg-panel);color:var(--text-main);
  border-right:1px solid var(--line);
}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.offcanvas-body{padding:16px 22px 32px;display:flex;flex-direction:column}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;font-size:16.5px;color:var(--text-main);
  border-bottom:1px solid var(--line);
}
.drawer-link:hover{color:var(--primary)}
.drawer-link.active{color:var(--primary)}
.drawer-cta{margin-top:22px}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:104px 0 92px;
  min-height:78vh;
  display:flex;align-items:center;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg, rgba(7,11,22,.72), rgba(7,11,22,.94)), url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  z-index:0;
}
.hero-inner{position:relative;z-index:1;width:100%}
.hero-chip{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 16px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);
  font-size:13px;color:var(--text-muted);margin-bottom:22px;
}
.hero-chip .dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 12px var(--glow)}
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.hero-card{padding:38px 36px}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.22;
  margin-bottom:18px;
}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--primary),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:19px;font-weight:600;color:var(--text-main);
  margin-bottom:14px;
}
.hero-lead{color:var(--text-muted);max-width:62ch;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-trust{display:flex;flex-wrap:wrap;gap:18px;font-size:13.5px;color:var(--text-muted)}
.hero-trust span{display:inline-flex;align-items:center;gap:8px}
.hero-trust i{color:var(--primary)}
.path-card{padding:28px 26px}
.path-card h3{font-size:19px;margin-bottom:6px}
.path-card .path-note{font-size:13.5px;color:var(--text-muted);margin-bottom:18px}
.path-list li{
  display:flex;gap:14px;padding:14px 0;
  border-bottom:1px dashed var(--line);
}
.path-list li:last-child{border-bottom:none}
.path-num{
  flex:0 0 30px;height:30px;border-radius:50%;
  display:grid;place-items:center;font-size:13.5px;font-weight:700;
  color:var(--primary);background:rgba(45,226,230,.1);
  border:1px solid rgba(45,226,230,.35);
  box-shadow:0 0 14px rgba(45,226,230,.18);
}
.path-list strong{display:block;font-size:15.5px;margin-bottom:2px}
.path-list p{font-size:13.5px;color:var(--text-muted);line-height:1.7}

/* ============ 服务入口 ============ */
.feature-main{
  padding:32px 30px;height:100%;
  display:flex;flex-direction:column;
  background:linear-gradient(160deg, rgba(45,226,230,.12), rgba(124,92,255,.08) 60%, transparent);
}
.feature-main .icon-badge{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  background:rgba(45,226,230,.14);border:1px solid rgba(45,226,230,.4);
  color:var(--primary);font-size:22px;margin-bottom:20px;
}
.feature-main h3{font-size:23px;margin-bottom:12px}
.feature-main p{color:var(--text-muted);margin-bottom:22px}
.feature-main .thumb{
  border-radius:16px;overflow:hidden;margin-top:auto;
}
.feature-main .thumb img{width:100%;height:190px;object-fit:cover}
.card-soft{
  padding:24px;height:100%;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.card-soft:hover{
  transform:translateY(-4px);
  border-color:rgba(45,226,230,.55);
  box-shadow:var(--shadow-card), 0 0 34px rgba(45,226,230,.16);
}
.card-soft .icon-line{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--primary);font-size:18px;margin-bottom:16px;
  background:rgba(255,255,255,.04);
}
.card-soft h3{font-size:18px;margin-bottom:10px}
.card-soft p{font-size:14.5px;color:var(--text-muted);margin-bottom:16px}

/* ============ 数据 ============ */
.stat-card{
  padding:26px 24px;height:100%;text-align:left;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.stat-card:hover{
  transform:translateY(-4px);
  border-color:rgba(45,226,230,.5);
  box-shadow:var(--shadow-card), 0 0 30px rgba(45,226,230,.14);
}
.stat-card .num{
  font-size:34px;font-weight:700;line-height:1.2;margin-bottom:8px;
  color:var(--primary);
}
.stat-card .num.warm{color:var(--cta)}
.stat-card .label{font-size:15px;font-weight:600;margin-bottom:6px}
.stat-card .desc{font-size:13.5px;color:var(--text-muted);line-height:1.75}

/* ============ 场景卡 ============ */
.scene-card{
  overflow:hidden;display:flex;flex-direction:column;height:100%;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(45,226,230,.5);box-shadow:var(--shadow-card),0 0 32px rgba(45,226,230,.14)}
.scene-card .cover{height:190px;overflow:hidden}
.scene-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.scene-card:hover .cover img{transform:scale(1.04)}
.scene-body{padding:24px;display:flex;flex-direction:column;flex:1}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;
  background:rgba(45,226,230,.1);border:1px solid rgba(45,226,230,.32);
  color:var(--primary);margin-bottom:14px;align-self:flex-start;
}
.tag.warm{background:rgba(255,159,67,.12);border-color:rgba(255,159,67,.35);color:var(--cta)}
.scene-body h3{font-size:19px;margin-bottom:10px}
.scene-body p{font-size:14.5px;color:var(--text-muted);margin-bottom:18px}
.scene-metric{
  display:flex;align-items:baseline;gap:10px;
  padding-top:16px;border-top:1px solid var(--line);margin-top:auto;
}
.scene-metric strong{font-size:24px;color:var(--cta)}
.scene-metric span{font-size:13px;color:var(--text-muted)}

/* ============ 流程 ============ */
.step-list{position:relative;padding-left:34px}
.step-list::before{
  content:"";position:absolute;left:11px;top:12px;bottom:12px;width:1px;
  background:linear-gradient(180deg, rgba(45,226,230,.6), rgba(124,92,255,.25), transparent);
}
.step-item{position:relative;padding:0 0 30px 0}
.step-item:last-child{padding-bottom:0}
.step-item::before{
  content:"";position:absolute;left:-29px;top:8px;
  width:12px;height:12px;border-radius:50%;
  background:var(--bg-deep);
  border:2px solid var(--primary);
  box-shadow:0 0 14px var(--glow);
}
.step-item .step-no{font-size:12.5px;letter-spacing:.16em;color:var(--primary);text-transform:uppercase}
.step-item h3{font-size:18px;margin:8px 0 8px}
.step-item p{font-size:14.5px;color:var(--text-muted)}
.side-cta{padding:30px 28px;background:linear-gradient(165deg, rgba(124,92,255,.16), rgba(45,226,230,.08) 70%, transparent)}
.side-cta h3{font-size:20px;margin-bottom:12px}
.side-cta p{font-size:14.5px;color:var(--text-muted);margin-bottom:20px}

/* ============ 资讯列表 ============ */
.news-featured{display:flex;flex-wrap:wrap;overflow:hidden;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.news-featured:hover{transform:translateY(-4px);border-color:rgba(45,226,230,.5);box-shadow:var(--shadow-card),0 0 32px rgba(45,226,230,.14)}
.news-featured .cover{flex:1 1 320px;min-height:230px;overflow:hidden}
.news-featured .cover img{width:100%;height:100%;object-fit:cover}
.news-featured .body{flex:1 1 340px;padding:28px}
.news-featured h3{font-size:22px;margin:12px 0 12px}
.news-featured p{font-size:14.5px;color:var(--text-muted);margin-bottom:18px}
.news-card{padding:24px;height:100%;display:flex;flex-direction:column;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.news-card:hover{transform:translateY(-4px);border-color:rgba(45,226,230,.5);box-shadow:var(--shadow-card),0 0 30px rgba(45,226,230,.13)}
.news-card h3{font-size:17.5px;margin:12px 0 10px}
.news-card h3 a{color:var(--text-main)}
.news-card h3 a:hover{color:var(--primary)}
.news-card p{font-size:14px;color:var(--text-muted);margin-bottom:16px}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-muted);
}
.empty-state{
  padding:56px 24px;text-align:center;
}
.empty-state i{font-size:30px;color:var(--primary);margin-bottom:16px;display:block}
.empty-state h3{font-size:17px;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--text-muted);margin-bottom:18px}

/* ============ FAQ ============ */
.accordion{
  --bs-accordion-bg:rgba(255,255,255,.035);
  --bs-accordion-color:var(--text-main);
  --bs-accordion-border-color:var(--line);
  --bs-accordion-border-radius:16px;
  --bs-accordion-inner-border-radius:16px;
  --bs-accordion-btn-color:var(--text-main);
  --bs-accordion-btn-bg:transparent;
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-active-color:var(--primary);
  --bs-accordion-active-bg:rgba(45,226,230,.07);
  --bs-accordion-btn-padding-y:20px;
  --bs-accordion-btn-padding-x:24px;
  --bs-accordion-body-padding-x:24px;
  --bs-accordion-body-padding-y:6px;
}
.accordion-item{
  margin-bottom:14px;
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  overflow:hidden;
}
.accordion-button{font-size:16.5px;font-weight:600;line-height:1.6}
.accordion-button::after{
  width:16px;height:16px;background-size:16px;
  filter:invert(84%) sepia(38%) saturate(1200%) hue-rotate(140deg);
}
.accordion-button:not(.collapsed){
  box-shadow:none;
  border-bottom:1px solid var(--line);
}
.accordion-body{color:var(--text-muted);font-size:14.8px;padding-bottom:22px}
.faq-side{padding:30px 28px;height:100%;background:linear-gradient(170deg, rgba(45,226,230,.12), rgba(124,92,255,.08) 70%, transparent)}
.faq-side h3{font-size:20px;margin-bottom:12px}
.faq-side p{font-size:14.5px;color:var(--text-muted);margin-bottom:18px}
.faq-side ul{margin-bottom:22px}
.faq-side li{font-size:14px;color:var(--text-muted);padding:7px 0;display:flex;gap:10px}
.faq-side li i{color:var(--primary);margin-top:5px;font-size:12px}

/* ============ 联系 ============ */
.form-panel{padding:32px 30px}
.form-panel h3{font-size:21px;margin-bottom:10px}
.form-panel > p{font-size:14.5px;color:var(--text-muted);margin-bottom:24px}
.form-label{font-size:13.5px;color:var(--text-muted);margin-bottom:8px;font-weight:500}
.form-control,.form-select{
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text-main);
  border-radius:var(--radius-sm);
  padding:12px 15px;
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.form-control::placeholder{color:rgba(147,164,195,.65)}
.form-control:focus,.form-select:focus{
  background:rgba(255,255,255,.07);
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(45,226,230,.18);
  color:var(--text-main);
}
.form-select option{background:var(--bg-panel);color:var(--text-main)}
.form-tip{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--radius-sm);
  background:rgba(255,159,67,.1);border:1px solid rgba(255,159,67,.35);
  font-size:14px;color:var(--cta-soft);
}
.info-panel{padding:30px 28px;height:100%}
.info-panel h3{font-size:20px;margin-bottom:16px}
.info-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line)}
.info-item:last-of-type{border-bottom:none}
.info-item .icon-line{
  flex:0 0 40px;height:40px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--primary);font-size:16px;
}
.info-item strong{display:block;font-size:15px;margin-bottom:3px}
.info-item p{font-size:13.5px;color:var(--text-muted);line-height:1.7}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(11,18,36,.6), rgba(7,11,22,.95));
  padding:64px 0 28px;margin-top:20px;position:relative;z-index:1;
}
.footer-head{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;flex-wrap:wrap}
.footer-brand{max-width:320px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-muted)}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-main)}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--text-muted)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-muted);
}
.to-top{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-main);
  transition:transform .22s ease,border-color .22s ease,color .22s ease;
}
.to-top:hover{transform:translateY(-3px);border-color:var(--primary);color:var(--primary)}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .hero h1{font-size:clamp(28px,4vw,44px)}
  .hero-card{padding:32px 28px}
}
@media (max-width:991.98px){
  :root{--section-gap:76px}
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-inner{height:68px;gap:16px}
  .hero{min-height:auto;padding:72px 0 64px}
  .path-card{margin-top:26px}
  .feature-main .thumb img{height:170px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  :root{--section-gap:62px}
  .hero-card{padding:26px 22px}
  .hero-actions .btn-cta,.hero-actions .btn-ghost{width:100%}
  .hero-trust{gap:12px}
  .news-featured .cover{min-height:190px}
  .news-featured .body{padding:22px}
  .brand-text small{display:none}
  .footer-head{gap:30px}
}
@media (max-width:575.98px){
  .hero h1{font-size:30px}
  .hero-sub{font-size:17px}
  .section-head h2{font-size:24px}
  .stat-card .num{font-size:28px}
  .to-top{width:38px;height:38px}
  .form-panel,.info-panel,.faq-side{padding:24px 20px}
}

/* roulang page: article */
:root{
  --bg-deep:#070B16;
  --bg-panel:#0B1224;
  --bg-elevated:#101A33;
  --primary:#2DE2E6;
  --primary-strong:#18B8C9;
  --accent:#7C5CFF;
  --cta:#FF9F43;
  --cta-soft:#FFB86B;
  --text-main:#EAF2FF;
  --text-muted:#93A4C3;
  --line:rgba(120,200,255,0.18);
  --glass:rgba(255,255,255,0.06);
  --glow:rgba(45,226,230,0.35);
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:14px;
  --shadow-card:0 18px 50px rgba(0,0,0,0.35);
  --font-stack:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-stack);
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:0.02em;
  color:var(--text-main);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(720px 520px at 88% 6%, rgba(45,226,230,0.16), transparent 62%),
    radial-gradient(620px 520px at 8% 34%, rgba(124,92,255,0.14), transparent 66%),
    radial-gradient(900px 620px at 50% 108%, rgba(24,184,201,0.10), transparent 68%);
  background-attachment:fixed;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,box-shadow .2s ease;}
a:hover{color:var(--cta);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:none;box-shadow:0 0 0 4px rgba(45,226,230,0.25);border-radius:10px;
}
h1,h2,h3,h4{font-weight:700;letter-spacing:0.02em;color:var(--text-main);margin:0 0 .6em;}
p{margin:0 0 1.1em;}
.container{max-width:1240px;padding-left:20px;padding-right:20px;}
::selection{background:rgba(45,226,230,0.3);color:#fff;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,11,22,0.82);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:26px;
  min-height:76px;
}
.brand{
  display:inline-flex;align-items:center;gap:12px;
  color:var(--text-main);font-size:19px;font-weight:700;letter-spacing:0.02em;
  white-space:nowrap;
}
.brand:hover{color:var(--text-main);}
.brand-mark{
  width:40px;height:40px;border-radius:13px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--primary),var(--accent));
  color:#04121A;font-size:17px;
  box-shadow:0 0 0 1px rgba(255,255,255,0.14),0 10px 26px rgba(45,226,230,0.28);
}
.brand-text{background:linear-gradient(90deg,#EAF2FF 10%,#9DF2F6 90%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-pill{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 16px;border-radius:999px;
  font-size:15px;color:var(--text-muted);
  border:1px solid transparent;
  transition:all .22s ease;white-space:nowrap;
}
.nav-pill:hover{color:var(--text-main);background:var(--glass);border-color:var(--line);}
.nav-pill.active{
  color:var(--text-main);background:var(--glass);border-color:var(--line);
  box-shadow:inset 0 -2px 0 0 var(--primary),0 8px 22px rgba(0,0,0,0.28);
}
.nav-pill.active::after{
  content:"";position:absolute;left:50%;bottom:-9px;transform:translateX(-50%);
  width:46%;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 12px var(--glow);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.btn-cta{
  display:inline-flex;align-items:center;gap:9px;
  height:46px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:700;color:#20120A;
  background:linear-gradient(135deg,var(--cta),var(--cta-soft));
  box-shadow:0 0 0 1px rgba(255,255,255,0.12),0 12px 30px rgba(255,159,67,0.28);
  transition:all .2s ease;
}
.btn-cta:hover{color:#20120A;transform:translateY(-2px);filter:brightness(1.06);}
.btn-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:13px;
  background:var(--glass);border:1px solid var(--line);color:var(--text-main);font-size:18px;
  align-items:center;justify-content:center;
}

/* ---------- 通用按钮 ---------- */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:var(--radius-sm);
  font-size:15.5px;font-weight:600;letter-spacing:0.02em;cursor:pointer;
  transition:all .22s ease;border:1px solid transparent;
}
.btn-main{
  color:#20120A;
  background:linear-gradient(135deg,var(--cta),var(--cta-soft));
  box-shadow:0 0 0 1px rgba(255,255,255,0.12),0 12px 30px rgba(255,159,67,0.28);
}
.btn-main:hover{color:#20120A;transform:translateY(-2px);filter:brightness(1.06);}
.btn-main:active{transform:translateY(1px);}
.btn-line{
  color:var(--text-main);background:var(--glass);border-color:var(--line);
}
.btn-line:hover{color:var(--primary);border-color:rgba(45,226,230,0.55);transform:translateY(-2px);}
.btn-ghost{color:var(--primary);background:transparent;padding:13px 8px;}
.btn-ghost:hover{color:var(--cta);box-shadow:inset 0 -1px 0 0 var(--cta);}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:52px 0 46px;
  background-image:linear-gradient(180deg,rgba(7,11,22,0.86),rgba(7,11,22,0.96)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,226,230,0.20),transparent 66%);pointer-events:none;
}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:9px;
  font-size:13.5px;color:var(--text-muted);margin-bottom:22px;position:relative;z-index:2;
}
.crumb a{
  display:inline-flex;align-items:center;
  padding:5px 13px;border-radius:999px;background:var(--glass);border:1px solid var(--line);
  color:var(--text-muted);font-size:13px;
}
.crumb a:hover{color:var(--primary);border-color:rgba(45,226,230,0.5);}
.crumb i{font-size:10px;color:rgba(147,164,195,0.6);}
.crumb .current{color:var(--text-muted);}
.badge-cat{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 15px;border-radius:999px;font-size:13px;font-weight:600;
  color:var(--primary);background:rgba(45,226,230,0.10);border:1px solid rgba(45,226,230,0.32);
  margin-bottom:18px;position:relative;z-index:2;
}
.article-hero h1{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.32;
  max-width:24ch;
  margin-bottom:20px;position:relative;z-index:2;
}
.meta-row{
  display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;
  font-size:13.5px;color:var(--text-muted);position:relative;z-index:2;
}
.meta-row span{display:inline-flex;align-items:center;gap:8px;}
.meta-row i{color:var(--primary);font-size:13px;}
.lead-line{
  max-width:72ch;color:var(--text-muted);font-size:16px;
  margin-top:20px;position:relative;z-index:2;
}

/* ---------- 正文区 ---------- */
.article-main{padding:64px 0 92px;}
.article-paper{
  max-width:860px;margin:0 auto;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  padding:44px 46px 40px;
}
.article-cover{
  max-width:860px;margin:0 auto 30px;
  border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line);
}
.article-cover img{width:100%;height:320px;object-fit:cover;}
.article-body{max-width:820px;color:#D9E5F7;font-size:17px;line-height:1.95;}
.article-body p{margin:0 0 1.25em;}
.article-body h2{
  position:relative;font-size:27px;line-height:1.45;
  margin:2em 0 .8em;padding-left:18px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:1.05em;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--accent));box-shadow:0 0 14px var(--glow);
}
.article-body h3{font-size:20px;margin:1.7em 0 .6em;color:#EAF2FF;}
.article-body h4{font-size:17px;margin:1.4em 0 .5em;color:var(--primary);}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.35em;line-height:1.9;}
.article-body li{margin-bottom:.55em;}
.article-body li::marker{color:var(--primary);}
.article-body blockquote{
  margin:1.6em 0;padding:20px 24px;
  background:rgba(255,255,255,0.05);
  border-left:4px solid var(--primary);
  border-radius:var(--radius-md);
  color:var(--text-muted);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-md);margin:1.6em 0;border:1px solid var(--line);}
.article-body a{color:var(--primary);border-bottom:1px dashed rgba(45,226,230,0.5);}
.article-body a:hover{color:var(--cta);border-bottom-color:var(--cta);}
.article-body code{
  background:rgba(45,226,230,0.10);border:1px solid var(--line);
  padding:2px 7px;border-radius:8px;font-size:.92em;color:#9DF2F6;
}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15.5px;}
.article-body th,.article-body td{
  padding:12px 14px;border:1px solid var(--line);text-align:left;
}
.article-body th{background:rgba(255,255,255,0.05);color:var(--text-main);}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.2em 0;}
.tag-row{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  margin-top:32px;padding-top:26px;border-top:1px solid var(--line);
}
.tag-row .tag-label{font-size:13.5px;color:var(--text-muted);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:var(--glass);border:1px solid var(--line);color:var(--text-muted);
  transition:all .2s ease;
}
.tag:hover{color:var(--primary);border-color:rgba(45,226,230,0.5);transform:translateY(-2px);}
.empty-state{
  text-align:center;padding:56px 20px;
}
.empty-state .empty-icon{
  width:62px;height:62px;margin:0 auto 18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:rgba(255,255,255,0.04);
  color:var(--primary);font-size:22px;
}
.empty-state h2{font-size:19px;margin-bottom:10px;}
.empty-state p{color:var(--text-muted);font-size:15px;margin-bottom:22px;}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 96px;}
.section-head{max-width:820px;margin:0 auto 30px;}
.section-head h2{font-size:30px;margin-bottom:10px;}
.section-head p{color:var(--text-muted);font-size:15.5px;margin:0;}
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1120px;margin:0 auto;}
.rec-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  display:flex;flex-direction:column;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.rec-card:hover{transform:translateY(-4px);border-color:rgba(45,226,230,0.5);box-shadow:0 22px 56px rgba(0,0,0,0.42),0 0 0 1px rgba(45,226,230,0.18);}
.rec-card .rec-thumb{height:168px;overflow:hidden;}
.rec-card .rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rec-card:hover .rec-thumb img{transform:scale(1.05);}
.rec-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rec-body h3{font-size:18px;margin:0;}
.rec-body p{color:var(--text-muted);font-size:14.5px;line-height:1.8;margin:0;flex:1;}
.rec-body .rec-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:7px;}
.rec-body .rec-link:hover{color:var(--cta);}
.back-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:40px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  max-width:1120px;margin:0 auto 96px;
  padding:38px 40px;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(45,226,230,0.14),rgba(124,92,255,0.16));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-band h2{font-size:25px;margin:0 0 8px;}
.cta-band p{margin:0;color:var(--text-muted);font-size:15px;max-width:56ch;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,36,0.6),rgba(7,11,22,0.96));
  padding:64px 0 26px;
  position:relative;
}
.footer-head{display:flex;flex-wrap:wrap;gap:44px;margin-bottom:44px;}
.footer-brand{min-width:280px;max-width:360px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--text-muted);font-size:14.5px;line-height:1.85;margin:0;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-main);}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:var(--text-muted);font-size:14.5px;transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:var(--primary);padding-left:4px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  padding-top:22px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--text-muted);
}
.to-top{
  width:42px;height:42px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-main);
  transition:all .2s ease;
}
.to-top:hover{color:#20120A;background:linear-gradient(135deg,var(--cta),var(--cta-soft));border-color:transparent;transform:translateY(-3px);}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .article-hero h1{font-size:40px;}
  .rec-grid{grid-template-columns:repeat(3,1fr);gap:20px;}
}
@media (max-width:992px){
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:absolute;left:16px;right:16px;top:76px;
    flex-direction:column;align-items:stretch;gap:6px;
    background:rgba(9,14,28,0.97);
    border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:16px;margin:0;
    box-shadow:0 26px 60px rgba(0,0,0,0.5);
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-pill{padding:13px 16px;border-radius:12px;font-size:15.5px;}
  .nav-pill.active::after{display:none;}
  .header-inner{gap:14px;}
  .brand{font-size:17px;}
  .brand-mark{width:36px;height:36px;font-size:15px;}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .article-paper{padding:34px 28px 30px;}
  .article-main{padding:48px 0 70px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .site-header .btn-cta{height:42px;padding:0 16px;font-size:14px;}
  .article-hero{padding:38px 0 34px;}
  .article-hero h1{font-size:30px;max-width:none;}
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:23px;}
  .article-cover img{height:220px;}
  .rec-grid{grid-template-columns:1fr;}
  .cta-band{padding:28px 24px;}
  .cta-band h2{font-size:21px;}
  .footer-head{gap:30px;}
  .footer-brand{max-width:none;}
  .article-main{padding:40px 0 60px;}
  .related{padding-bottom:70px;}
  .cta-band{margin-bottom:70px;}
}
@media (max-width:576px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-text{font-size:15.5px;}
  .brand-mark{width:34px;height:34px;}
  .article-hero h1{font-size:26px;}
  .article-paper{padding:26px 18px 24px;border-radius:18px;}
  .meta-row{font-size:13px;gap:8px 16px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .btn-main,.cta-band .btn-line{flex:1 1 100%;justify-content:center;}
  .btn-main,.btn-line{padding:13px 20px;}
}

/* roulang page: category1 */
:root{
  --bg-deep:#070B16;
  --bg-panel:#0B1224;
  --bg-elevated:#101A33;
  --primary:#2DE2E6;
  --primary-strong:#18B8C9;
  --accent:#7C5CFF;
  --cta:#FF9F43;
  --cta-soft:#FFB86B;
  --text-main:#EAF2FF;
  --text-muted:#93A4C3;
  --line:rgba(120,200,255,.18);
  --line-strong:rgba(120,200,255,.34);
  --glass:rgba(255,255,255,.06);
  --glow:rgba(45,226,230,.35);
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 18px 50px rgba(0,0,0,.35);
  --shadow-cta:0 0 0 1px rgba(255,255,255,.12),0 12px 30px rgba(255,159,67,.28);
  --section-gap:clamp(56px,7vw,108px);
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.02em;
  color:var(--text-main);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(900px 620px at 68% 78%,rgba(45,226,230,.14),transparent 62%),
    radial-gradient(760px 520px at 22% 30%,rgba(124,92,255,.12),transparent 66%),
    radial-gradient(1100px 700px at 50% 110%,rgba(24,184,201,.10),transparent 70%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(120,200,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,200,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 40%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000 0%,transparent 78%);
  opacity:.55;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--cta);text-decoration:underline;text-underline-offset:4px;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:none;
  box-shadow:0 0 0 4px rgba(45,226,230,.25);
  border-radius:10px;
}
h1,h2,h3,h4,h5{font-weight:700;line-height:1.32;letter-spacing:.01em;margin:0 0 .6em;}
p{margin:0 0 1.1em;color:var(--text-muted);}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:1260px;padding-left:22px;padding-right:22px;position:relative;z-index:1;}
.section{padding:var(--section-gap) 0;position:relative;z-index:1;}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);
  background:var(--glass);
  border:1px solid var(--line);
  padding:7px 16px;border-radius:999px;margin-bottom:18px;
}
.eyebrow i{font-size:12px;}
h1{font-size:clamp(30px,4vw,50px);}
h2{font-size:clamp(24px,2.8vw,34px);}
h3{font-size:19px;}
.lead{font-size:17px;color:var(--text-muted);max-width:72ch;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(7,11,22,.82);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav-shell{
  min-height:76px;
  display:flex;align-items:center;gap:26px;
}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(45,226,230,.28),rgba(124,92,255,.28));
  border:1px solid var(--line-strong);
  color:var(--primary);font-size:17px;
  box-shadow:0 0 24px rgba(45,226,230,.18);
}
.brand-text{font-size:18px;font-weight:700;color:var(--text-main);letter-spacing:.03em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-pill{
  position:relative;
  display:inline-flex;align-items:center;
  padding:10px 18px;border-radius:999px;
  font-size:15px;color:var(--text-muted);
  border:1px solid transparent;
  transition:all .22s ease;
}
.nav-pill:hover{
  color:var(--text-main);background:var(--glass);border-color:var(--line);text-decoration:none;
}
.nav-pill.active{
  color:var(--text-main);
  background:var(--glass);
  border-color:var(--line-strong);
  box-shadow:inset 0 0 22px rgba(45,226,230,.10);
}
.nav-pill.active::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:0 0 12px var(--glow);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.btn-cta{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:999px;border:0;
  font-size:15px;font-weight:700;color:#231402;
  background:linear-gradient(135deg,var(--cta),var(--cta-soft));
  box-shadow:var(--shadow-cta);
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease;
  cursor:pointer;
}
.btn-cta:hover{color:#231402;text-decoration:none;filter:brightness(1.06);transform:translateY(-2px);}
.btn-cta:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 24px;border-radius:var(--radius-md);
  background:var(--glass);border:1px solid var(--line);
  color:var(--text-main);font-size:15px;font-weight:600;
  transition:all .22s ease;cursor:pointer;
}
.btn-ghost:hover{color:var(--primary);border-color:var(--line-strong);text-decoration:none;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-text{color:var(--primary);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:8px;}
.btn-text:hover{color:var(--cta);text-decoration:none;}
.btn-text i{transition:transform .2s ease;}
.btn-text:hover i{transform:translateX(4px);}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:13px;
  align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-main);font-size:18px;cursor:pointer;
}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  min-height:44vh;
  display:flex;align-items:center;
  padding:78px 0 66px;
  background-image:linear-gradient(100deg,rgba(7,11,22,.94) 0%,rgba(7,11,22,.76) 52%,rgba(7,11,22,.88) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;bottom:-180px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,226,230,.22),transparent 66%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:48px;align-items:center;position:relative;z-index:2;}
.hero-copy h1{margin-bottom:18px;}
.hero-copy h1 .hl{
  background:linear-gradient(120deg,var(--primary),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:18px;color:var(--text-muted);max-width:60ch;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.badges{display:flex;flex-wrap:wrap;gap:12px;}
.badge-soft{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border-radius:999px;font-size:13px;
  color:var(--text-muted);background:var(--glass);border:1px solid var(--line);
}
.badge-soft i{color:var(--primary);font-size:12px;}
.hero-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px 24px;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.hero-card h2{font-size:17px;margin-bottom:16px;color:var(--text-main);}
.path-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:12px 0;border-bottom:1px dashed rgba(120,200,255,.14);
  font-size:15px;color:var(--text-muted);
}
.path-list li:last-child{border-bottom:0;padding-bottom:0;}
.path-num{
  flex:0 0 28px;width:28px;height:28px;border-radius:9px;
  display:grid;place-items:center;font-size:13px;font-weight:700;
  color:var(--primary);background:rgba(45,226,230,.10);border:1px solid var(--line);
}

/* ============ 面包屑 ============ */
.crumb-bar{padding:22px 0 0;position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;}
.crumb a{
  padding:6px 14px;border-radius:999px;background:var(--glass);border:1px solid var(--line);
  color:var(--text-muted);
}
.crumb a:hover{color:var(--primary);text-decoration:none;border-color:var(--line-strong);}
.crumb .sep{color:rgba(147,164,195,.6);}
.crumb .current{color:var(--text-muted);padding:6px 12px;}

/* ============ 步骤区 ============ */
.guide-layout{display:grid;grid-template-columns:280px 1fr;gap:38px;align-items:start;}
.anchor-nav{
  position:sticky;top:104px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px 20px;backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.anchor-nav h3{font-size:15px;color:var(--text-main);margin-bottom:14px;letter-spacing:.06em;}
.anchor-nav ul li a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:var(--radius-sm);
  font-size:14.5px;color:var(--text-muted);
  transition:all .2s ease;
}
.anchor-nav ul li a:hover{background:rgba(45,226,230,.08);color:var(--primary);text-decoration:none;}
.anchor-nav ul li a i{font-size:11px;color:var(--primary-strong);}
.anchor-tip{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-muted);line-height:1.8;
}
.step-list{display:flex;flex-direction:column;gap:20px;}
.step-card{
  display:grid;grid-template-columns:64px 1fr;
  gap:20px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.step-card:hover{
  transform:translateY(-4px);
  border-color:rgba(45,226,230,.48);
  box-shadow:0 22px 56px rgba(0,0,0,.42),0 0 0 1px rgba(45,226,230,.18),0 0 34px var(--glow);
}
.step-index{
  width:64px;height:64px;border-radius:18px;
  display:grid;place-items:center;font-size:20px;font-weight:700;
  color:var(--primary);
  background:linear-gradient(150deg,rgba(45,226,230,.16),rgba(124,92,255,.14));
  border:1px solid var(--line-strong);
}
.step-body h3{margin-bottom:10px;}
.step-body p{margin-bottom:14px;font-size:15.5px;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:12px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;padding:6px 13px;border-radius:999px;
  color:var(--primary);background:rgba(45,226,230,.09);border:1px solid var(--line);
}
.chip.warn{color:var(--cta);background:rgba(255,159,67,.10);border-color:rgba(255,159,67,.28);}

/* ============ 场景卡 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(45,226,230,.42);}
.scene-card img{width:100%;height:190px;object-fit:cover;border-radius:0;}
.scene-body{padding:24px 24px 26px;}
.scene-body h3{margin-bottom:10px;}
.scene-body p{font-size:15px;margin-bottom:16px;}

/* ============ 准备清单 / 数据 ============ */
.prep-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;}
.prep-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.prep-card h3{margin-bottom:16px;}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:13px 0;border-bottom:1px solid rgba(120,200,255,.10);
  font-size:15.5px;color:var(--text-muted);
}
.check-list li:last-child{border-bottom:0;}
.check-list li i{color:var(--primary);margin-top:6px;font-size:14px;}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:6px;}
.stat-card{
  background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px;transition:border-color .22s ease,box-shadow .22s ease;
}
.stat-card:hover{border-color:rgba(45,226,230,.45);box-shadow:0 0 26px rgba(45,226,230,.16);}
.stat-num{font-size:30px;font-weight:700;color:var(--primary);line-height:1.2;}
.stat-num.accent{color:var(--cta);}
.stat-label{font-size:13.5px;color:var(--text-muted);margin-top:6px;}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:34px;margin-top:10px;}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(45,226,230,.5),rgba(124,92,255,.24),transparent);
}
.tl-item{position:relative;padding:0 0 30px 26px;}
.tl-item::before{
  content:"";position:absolute;left:-32px;top:8px;
  width:14px;height:14px;border-radius:50%;
  background:var(--bg-deep);border:2px solid var(--primary);
  box-shadow:0 0 14px var(--glow);
}
.tl-item h3{font-size:17px;margin-bottom:8px;}
.tl-item p{font-size:15px;margin-bottom:0;}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:1.5fr 1fr;gap:30px;align-items:start;}
.accordion-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-md);
  margin-bottom:14px;overflow:hidden;
}
.accordion-button{
  background:transparent;color:var(--text-main);
  font-size:17px;font-weight:700;padding:20px 22px;
  box-shadow:none;
}
.accordion-button:not(.collapsed){
  background:rgba(45,226,230,.08);color:var(--primary);
  box-shadow:none;
}
.accordion-button:focus{box-shadow:0 0 0 4px rgba(45,226,230,.20);}
.accordion-button::after{
  filter:invert(78%) sepia(38%) saturate(1900%) hue-rotate(140deg);
  background-size:15px;width:15px;height:15px;
}
.accordion-body{padding:0 22px 22px;font-size:15.5px;color:var(--text-muted);line-height:1.9;}
.faq-side{
  background:linear-gradient(160deg,rgba(45,226,230,.12),rgba(124,92,255,.10));
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow-card);
}
.faq-side h3{margin-bottom:14px;}
.faq-side p{font-size:15px;color:#C6D5EE;}
.faq-side .btn-cta,.faq-side .btn-ghost{margin-top:10px;}

/* ============ CTA 区 ============ */
.cta-band{
  background:linear-gradient(120deg,rgba(45,226,230,.14),rgba(124,92,255,.14));
  border:1px solid var(--line-strong);
  border-radius:26px;
  padding:48px;
  display:grid;grid-template-columns:1.4fr .9fr;gap:34px;align-items:center;
  position:relative;overflow:hidden;
  box-shadow:var(--shadow-card);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-110px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,159,67,.20),transparent 66%);
}
.cta-band h2{position:relative;z-index:2;}
.cta-band p{position:relative;z-index:2;color:#C6D5EE;margin-bottom:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2;justify-content:flex-end;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;
  margin-top:var(--section-gap);
  padding:66px 0 26px;
  background:linear-gradient(180deg,rgba(11,18,36,.35),rgba(7,11,22,.92));
  border-top:1px solid var(--line);
}
.footer-head{display:flex;gap:46px;flex-wrap:wrap;padding-bottom:42px;}
.footer-brand{max-width:360px;}
.footer-brand p{font-size:14.5px;margin-top:16px;color:var(--text-muted);}
.footer-col h4{font-size:15px;color:var(--text-main);margin-bottom:16px;letter-spacing:.05em;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14.5px;color:var(--text-muted);}
.footer-col ul li a:hover{color:var(--primary);text-decoration:none;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  border-top:1px solid var(--line);padding-top:22px;
  font-size:13.5px;color:var(--text-muted);flex-wrap:wrap;
}
.to-top{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--primary);
  transition:all .22s ease;
}
.to-top:hover{color:#231402;background:linear-gradient(135deg,var(--cta),var(--cta-soft));border-color:transparent;text-decoration:none;transform:translateY(-3px);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .hero-grid{grid-template-columns:1fr .9fr;gap:34px;}
  .guide-layout{grid-template-columns:250px 1fr;gap:28px;}
  .footer-head{gap:34px;}
}
@media (max-width:992px){
  .nav-links{
    position:fixed;top:76px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;
    background:rgba(7,11,22,.98);
    border-bottom:1px solid var(--line);
    padding:18px 22px 26px;
    transform:translateY(-14px);opacity:0;visibility:hidden;
    transition:all .24s ease;
    max-height:calc(100vh - 76px);overflow-y:auto;
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible;}
  .nav-pill{padding:15px 18px;font-size:16px;border-radius:14px;}
  .nav-pill.active::after{display:none;}
  .nav-pill.active{box-shadow:inset 3px 0 0 var(--primary);}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-cta{padding:11px 20px;font-size:14px;}
  .hero-grid{grid-template-columns:1fr;}
  .page-hero{min-height:auto;padding:62px 0 54px;}
  .guide-layout{grid-template-columns:1fr;}
  .anchor-nav{position:static;}
  .anchor-nav ul{display:flex;flex-wrap:wrap;gap:8px;}
  .anchor-nav ul li a{background:rgba(255,255,255,.04);border:1px solid var(--line);}
  .scene-grid{grid-template-columns:1fr 1fr;}
  .prep-wrap{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:36px;}
  .cta-actions{justify-content:flex-start;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .brand-text{font-size:16px;}
  .step-card{grid-template-columns:1fr;gap:16px;padding:22px;}
  .step-index{width:52px;height:52px;font-size:17px;border-radius:15px;}
  .scene-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .hero-actions .btn-cta,.hero-actions .btn-ghost{width:100%;justify-content:center;}
  .footer-head{flex-direction:column;gap:28px;}
  .section{padding:60px 0;}
}
@media (max-width:576px){
  .container{padding-left:16px;padding-right:16px;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  .hero-sub{font-size:16px;}
  .hero-card{padding:20px;}
  .stat-grid{grid-template-columns:1fr;}
  .cta-band{padding:26px;}
  .prep-card{padding:22px;}
  .faq-side{padding:22px;}
  body::before{opacity:.3;}
}

/* roulang page: category2 */
:root{
  --bg-deep:#070B16;
  --bg-panel:#0B1224;
  --bg-elevated:#101A33;
  --primary:#2DE2E6;
  --primary-strong:#18B8C9;
  --accent:#7C5CFF;
  --cta:#FF9F43;
  --cta-light:#FFB86B;
  --text-main:#EAF2FF;
  --text-muted:#93A4C3;
  --line:rgba(120,200,255,.18);
  --line-strong:rgba(45,226,230,.45);
  --glass:rgba(255,255,255,.06);
  --glow:rgba(45,226,230,.35);
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 18px 50px rgba(0,0,0,.35);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--text-main);
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.02em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  pointer-events:none;
  background:
    radial-gradient(900px 620px at 50% 82%, rgba(124,92,255,.16), transparent 70%),
    radial-gradient(760px 520px at 10% 6%, rgba(45,226,230,.12), transparent 68%),
    radial-gradient(600px 400px at 92% 30%, rgba(24,184,201,.10), transparent 70%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  opacity:.35;
  background-image:
    linear-gradient(rgba(120,200,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,200,255,.045) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 40%, #000 0%, transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%, #000 0%, transparent 78%);
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease, opacity .2s ease;}
a:hover{color:var(--cta);text-decoration:underline;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:none;
  box-shadow:0 0 0 4px rgba(45,226,230,.25);
  border-radius:10px;
}
h1,h2,h3,h4,h5{font-weight:700;letter-spacing:.01em;line-height:1.35;margin:0;color:var(--text-main);}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(45,226,230,.3);color:#fff;}
.container{max-width:1240px;padding-left:20px;padding-right:20px;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(7,11,22,.82);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:76px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--text-main);
  font-weight:700;
  font-size:18px;
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand:hover{color:var(--text-main);text-decoration:none;}
.brand-mark{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(140deg, var(--primary), var(--accent));
  color:#04121A;
  font-size:17px;
  box-shadow:0 0 0 1px rgba(255,255,255,.12), 0 10px 26px rgba(45,226,230,.28);
  flex:0 0 auto;
}
.brand-text{display:inline-block;}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border-radius:999px;
  color:var(--text-muted);
  font-size:15px;
  font-weight:500;
  border:1px solid transparent;
  position:relative;
  transition:all .22s ease;
  white-space:nowrap;
}
.nav-pill:hover{
  color:var(--text-main);
  background:var(--glass);
  border-color:var(--line);
  text-decoration:none;
}
.nav-pill.active{
  color:var(--primary);
  background:rgba(45,226,230,.10);
  border-color:rgba(45,226,230,.35);
}
.nav-pill.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-19px;
  transform:translateX(-50%);
  width:38px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg, transparent, var(--primary), transparent);
  box-shadow:0 0 12px var(--glow);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.btn-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  padding:13px 26px;
  border-radius:999px;
  border:none;
  font-size:15.5px;
  font-weight:700;
  color:#24160A;
  background:linear-gradient(135deg, var(--cta), var(--cta-light));
  box-shadow:0 0 0 1px rgba(255,255,255,.12), 0 12px 30px rgba(255,159,67,.28);
  transition:transform .2s ease, box-shadow .2s ease, filter .2s ease;
  cursor:pointer;
  text-decoration:none;
}
.btn-cta:hover{
  color:#24160A;
  filter:brightness(1.06);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(255,255,255,.18), 0 16px 36px rgba(255,159,67,.36);
  text-decoration:none;
}
.btn-cta:active{transform:translateY(1px);}
.header-cta{height:46px;padding:0 24px;font-size:15px;}
.nav-toggle{
  width:46px;height:46px;
  border-radius:14px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-main);
  font-size:18px;
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:all .2s ease;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}
.mobile-nav{
  border-top:1px solid var(--line);
  background:rgba(11,18,36,.96);
  padding:14px 0 22px;
}
.mobile-nav .nav-links{flex-direction:column;align-items:stretch;gap:8px;}
.mobile-nav .nav-pill{padding:14px 18px;border-radius:14px;font-size:16px;}
.mobile-nav .nav-pill.active::after{display:none;}
.mobile-nav .btn-cta{margin-top:14px;height:52px;border-radius:14px;}

/* ===== 通用按钮 ===== */
.btn-glass{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 24px;
  border-radius:14px;
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text-main);
  font-size:15.5px;font-weight:600;
  transition:all .2s ease;
  cursor:pointer;
  text-decoration:none;
}
.btn-glass:hover{
  color:var(--primary);
  border-color:var(--line-strong);
  background:rgba(45,226,230,.08);
  transform:translateY(-2px);
  text-decoration:none;
}
.btn-glass:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--primary);
  font-weight:600;
  font-size:15px;
  border-bottom:1px solid rgba(45,226,230,.4);
  padding-bottom:2px;
  text-decoration:none;
  transition:all .2s ease;
}
.btn-ghost:hover{color:var(--cta);border-color:rgba(255,159,67,.5);text-decoration:none;}

/* ===== Hero ===== */
.page-hero{
  position:relative;
  min-height:38vh;
  display:flex;
  align-items:center;
  padding:74px 0 62px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.5;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(7,11,22,.78) 0%, rgba(7,11,22,.88) 55%, rgba(7,11,22,.97) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;
  border-radius:999px;
  border:1px solid rgba(45,226,230,.32);
  background:rgba(45,226,230,.08);
  color:var(--primary);
  font-size:13.5px;
  font-weight:600;
  margin-bottom:20px;
}
.hero-badge i{font-size:12px;}
.page-hero h1{
  font-size:clamp(30px, 4vw, 48px);
  max-width:20ch;
  letter-spacing:.01em;
}
.page-hero h1 .accent{
  background:linear-gradient(120deg, var(--primary), var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  margin-top:18px;
  max-width:62ch;
  color:var(--text-muted);
  font-size:17px;
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:26px;
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-muted);
  font-size:13.5px;
  font-weight:500;
  transition:all .2s ease;
  white-space:nowrap;
}
.chip i{color:var(--primary);font-size:12px;}
.chip:hover{border-color:var(--line-strong);color:var(--text-main);background:rgba(45,226,230,.08);}

/* ===== 面包屑 ===== */
.breadcrumb-wrap{padding:26px 0 0;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;
  color:var(--text-muted);
}
.crumb a{
  padding:6px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-muted);
  transition:all .2s ease;
}
.crumb a:hover{color:var(--primary);border-color:var(--line-strong);text-decoration:none;}
.crumb .sep{opacity:.45;font-size:11px;}
.crumb .current{
  padding:6px 14px;
  border-radius:999px;
  border:1px solid transparent;
  color:var(--text-muted);
}

/* ===== 板块 ===== */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section-head{max-width:70ch;margin-bottom:46px;}
.section-head h2{
  font-size:clamp(24px, 3vw, 34px);
  margin-bottom:14px;
}
.section-head p{color:var(--text-muted);font-size:16.5px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  color:var(--primary);
  font-size:13.5px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:26px;height:2px;
  border-radius:2px;
  background:linear-gradient(90deg, var(--primary), transparent);
}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head.center .eyebrow{justify-content:center;}

/* ===== 卡片 ===== */
.glass-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  padding:26px;
  transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease;
  height:100%;
}
.glass-card:hover{
  transform:translateY(-4px);
  border-color:rgba(45,226,230,.42);
  box-shadow:var(--shadow-card), 0 0 26px rgba(45,226,230,.16);
}
.info-card{display:flex;flex-direction:column;gap:14px;}
.info-top{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;}
.shield{
  width:48px;height:48px;flex:0 0 auto;
  border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg, rgba(45,226,230,.22), rgba(124,92,255,.22));
  border:1px solid rgba(45,226,230,.3);
  color:var(--primary);
  font-size:19px;
}
.info-card h3{font-size:19px;}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  white-space:nowrap;
  border:1px solid var(--line);
  color:var(--text-muted);
  background:rgba(255,255,255,.04);
}
.badge-soft.ok{color:var(--primary);border-color:rgba(45,226,230,.35);background:rgba(45,226,230,.1);}
.badge-soft.warn{color:var(--cta);border-color:rgba(255,159,67,.35);background:rgba(255,159,67,.1);}
.badge-soft.violet{color:#B9A8FF;border-color:rgba(124,92,255,.4);background:rgba(124,92,255,.12);}
.info-card p{color:var(--text-muted);font-size:15.5px;line-height:1.85;}
.mini-list{margin-top:4px;display:flex;flex-direction:column;gap:9px;}
.mini-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--text-muted);
}
.mini-list li i{color:var(--primary);font-size:12px;margin-top:8px;flex:0 0 auto;}

/* ===== 标签筛选外观 ===== */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:16px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:rgba(11,18,36,.6);
  margin-bottom:38px;
}
.filter-tag{
  padding:8px 18px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:var(--text-muted);
  border:1px solid var(--line);
  background:var(--glass);
  cursor:default;
  transition:all .2s ease;
}
.filter-tag:hover{color:var(--text-main);border-color:var(--line-strong);}
.filter-tag.is-on{
  color:#04121A;
  background:linear-gradient(135deg, var(--primary), var(--primary-strong));
  border-color:transparent;
  box-shadow:0 10px 24px rgba(45,226,230,.24);
}

/* ===== 流程时间线 ===== */
.timeline{position:relative;display:flex;flex-direction:column;gap:22px;}
.timeline::before{
  content:"";
  position:absolute;
  left:23px;top:16px;bottom:16px;
  width:1px;
  background:linear-gradient(180deg, rgba(45,226,230,.55), rgba(124,92,255,.35), transparent);
}
.step{
  position:relative;
  padding-left:70px;
}
.step-num{
  position:absolute;left:0;top:2px;
  width:48px;height:48px;
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;
  font-size:16px;
  color:var(--primary);
  background:var(--bg-elevated);
  border:1px solid rgba(45,226,230,.4);
  box-shadow:0 0 18px rgba(45,226,230,.2);
}
.step h3{font-size:18.5px;margin-bottom:8px;}
.step p{color:var(--text-muted);font-size:15.5px;}

/* ===== 场景卡 ===== */
.scene-card{
  display:flex;flex-direction:column;
  overflow:hidden;
  padding:0;
}
.scene-card .scene-media{
  position:relative;
  height:190px;
  overflow:hidden;
}
.scene-card .scene-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.scene-card:hover .scene-media img{transform:scale(1.05);}
.scene-card .scene-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(7,11,22,.1), rgba(7,11,22,.85));
}
.scene-card .scene-body{padding:24px 26px 28px;}
.scene-card .scene-body h3{font-size:19px;margin-bottom:10px;}
.scene-card .scene-body p{color:var(--text-muted);font-size:15.5px;}
.scene-result{
  margin-top:16px;
  display:inline-flex;align-items:center;gap:9px;
  font-size:14px;
  color:var(--primary);
  font-weight:600;
}
.scene-result i{font-size:12px;}

/* ===== 数据卡 ===== */
.stat-card{text-align:left;}
.stat-num{
  font-size:38px;
  font-weight:700;
  line-height:1.1;
  background:linear-gradient(120deg, var(--primary), var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  letter-spacing:.01em;
}
.stat-label{margin-top:10px;font-size:15px;font-weight:600;}
.stat-desc{margin-top:6px;font-size:13.8px;color:var(--text-muted);}

/* ===== FAQ ===== */
.accordion-item{
  background:var(--glass);
  border:1px solid var(--line) !important;
  border-radius:18px !important;
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(140%);
}
.accordion-button{
  background:transparent !important;
  color:var(--text-main) !important;
  font-size:17px;
  font-weight:600;
  padding:20px 24px;
  box-shadow:none !important;
  display:flex;
  align-items:center;
  gap:14px;
}
.accordion-button:not(.collapsed){
  color:var(--primary) !important;
  background:rgba(45,226,230,.07) !important;
}
.accordion-button::after{display:none;}
.faq-chev{
  margin-left:auto;
  font-size:13px;
  color:var(--primary);
  transition:transform .25s ease;
  flex:0 0 auto;
}
.accordion-button:not(.collapsed) .faq-chev{transform:rotate(180deg);}
.accordion-body{
  padding:4px 24px 22px 24px;
  color:var(--text-muted);
  font-size:15.5px;
  line-height:1.9;
}
.accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:rgba(45,226,230,.42) !important;
}
.faq-side{
  position:sticky;
  top:104px;
}
.faq-side .glass-card{
  border-color:rgba(45,226,230,.32);
  box-shadow:var(--shadow-card), 0 0 30px rgba(45,226,230,.12);
}
.faq-side h3{font-size:20px;margin-bottom:12px;}
.faq-side p{color:var(--text-muted);font-size:15.5px;}
.faq-side .side-list{display:flex;flex-direction:column;gap:12px;margin:18px 0 22px;}
.faq-side .side-list li{
  display:flex;align-items:center;gap:10px;
  font-size:14.5px;
  color:var(--text-muted);
}
.faq-side .side-list i{color:var(--primary);font-size:13px;}

/* ===== CTA ===== */
.cta-band{
  position:relative;
  border-radius:26px;
  border:1px solid rgba(45,226,230,.28);
  background:linear-gradient(135deg, rgba(16,26,51,.95), rgba(11,18,36,.92));
  padding:52px 46px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(45,226,230,.22), transparent 68%);
}
.cta-band::after{
  content:"";
  position:absolute;
  left:-100px;bottom:-140px;
  width:300px;height:300px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(124,92,255,.2), transparent 68%);
}
.cta-band .cta-inner{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(24px, 3vw, 32px);margin-bottom:14px;}
.cta-band p{color:var(--text-muted);max-width:62ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:20px;
  border-top:1px solid var(--line);
  background:rgba(9,14,28,.85);
  padding:68px 0 30px;
}
.footer-head{display:flex;flex-wrap:wrap;gap:44px;}
.footer-brand{max-width:360px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{color:var(--text-muted);font-size:14.8px;line-height:1.85;}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:var(--text-main);
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{
  color:var(--text-muted);
  font-size:14.6px;
  transition:all .2s ease;
}
.footer-col a:hover{color:var(--primary);padding-left:4px;text-decoration:none;}
.footer-bottom{
  margin-top:52px;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  color:var(--text-muted);
  font-size:13.8px;
}
.to-top{
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s ease;
}
.to-top:hover{
  border-color:var(--line-strong);
  background:rgba(45,226,230,.1);
  transform:translateY(-3px);
  text-decoration:none;
}

/* ===== 响应式 ===== */
@media (max-width:1200px){
  .page-hero h1{font-size:clamp(30px,3.6vw,42px);}
  .section{padding:84px 0;}
}
@media (max-width:992px){
  .section{padding:72px 0;}
  .section.tight{padding:60px 0;}
  .page-hero{min-height:auto;padding:60px 0 52px;}
  .faq-side{position:static;margin-top:26px;}
  .cta-band{padding:40px 30px;}
  .footer-head{gap:34px;}
  .footer-brand{max-width:100%;}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.85;}
  .section{padding:58px 0;}
  .section.tight{padding:50px 0;}
  .section-head{margin-bottom:32px;}
  .glass-card{padding:22px;border-radius:18px;}
  .timeline::before{left:19px;}
  .step{padding-left:60px;}
  .step-num{width:40px;height:40px;font-size:14.5px;border-radius:12px;}
  .cta-band{padding:34px 22px;border-radius:20px;}
  .cta-actions .btn-cta,
  .cta-actions .btn-glass{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:576px){
  .brand{font-size:16px;}
  .brand-mark{width:36px;height:36px;font-size:15px;border-radius:11px;}
  .page-hero h1{font-size:29px;}
  .hero-sub{font-size:15.8px;}
  .stat-num{font-size:32px;}
  .filter-bar{padding:12px;}
  .filter-tag{padding:7px 14px;font-size:13.4px;}
  .scene-card .scene-media{height:165px;}
}

/* roulang page: category3 */
:root{
  --bg-deep:#070B16;
  --bg-panel:#0B1224;
  --bg-elevated:#101A33;
  --primary:#2DE2E6;
  --primary-strong:#18B8C9;
  --accent:#7C5CFF;
  --cta:#FF9F43;
  --cta-soft:#FFB86B;
  --text-main:#EAF2FF;
  --text-muted:#93A4C3;
  --line:rgba(120,200,255,.18);
  --glass:rgba(255,255,255,.06);
  --glow:rgba(45,226,230,.35);
  --radius-sm:12px;
  --radius-md:16px;
  --radius-lg:20px;
  --radius-xl:24px;
  --shadow-card:0 18px 50px rgba(0,0,0,.35);
  --section-gap:104px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.02em;
  color:var(--text-main);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(900px 520px at 12% -8%, rgba(45,226,230,.13), transparent 62%),
    radial-gradient(760px 480px at 88% 6%, rgba(124,92,255,.12), transparent 60%),
    radial-gradient(1000px 620px at 50% 96%, rgba(45,226,230,.10), transparent 66%),
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size:auto,auto,auto,64px 64px,64px 64px;
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--cta);text-decoration:underline}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.01em}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
::selection{background:rgba(45,226,230,.3);color:#fff}
.container{max-width:1220px;padding-left:20px;padding-right:20px}
.section{padding:var(--section-gap) 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:48px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--primary);letter-spacing:.14em;text-transform:uppercase;margin-bottom:16px}
.eyebrow i{font-size:12px}
.section-head h2{font-size:34px;margin-bottom:16px}
.section-head p{color:var(--text-muted);font-size:16px;max-width:72ch}
.lead{color:var(--text-muted);font-size:17px;max-width:72ch}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);border:0;margin:0}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,11,22,.84);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text-main);text-decoration:none;flex-shrink:0}
.brand:hover{color:var(--text-main);text-decoration:none}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(45,226,230,.24),rgba(124,92,255,.30));
  border:1px solid var(--line);color:var(--primary);
  box-shadow:0 0 18px rgba(45,226,230,.18);
}
.brand-text{font-size:17px;font-weight:700;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-pill{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 16px;
  border-radius:999px;border:1px solid transparent;color:var(--text-muted);
  font-size:15px;text-decoration:none;transition:all .22s ease;white-space:nowrap;
}
.nav-pill:hover{color:var(--text-main);background:var(--glass);border-color:var(--line);text-decoration:none}
.nav-pill.active{color:var(--text-main);background:var(--glass);border-color:var(--line)}
.nav-pill.active::after{
  content:"";position:absolute;left:50%;bottom:-3px;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 12px var(--glow);
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-main);font-size:17px;
  transition:all .2s ease;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-weight:600;font-size:15.5px;letter-spacing:.02em;
  border-radius:14px;padding:14px 26px;border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  text-decoration:none;cursor:pointer;
}
.btn:hover{text-decoration:none}
.btn-cta{
  background-image:linear-gradient(135deg,var(--cta),var(--cta-soft));
  color:#1A1205;
  box-shadow:0 0 0 1px rgba(255,255,255,.12),0 12px 30px rgba(255,159,67,.28);
}
.btn-cta:hover{color:#1A1205;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,255,255,.16),0 18px 38px rgba(255,159,67,.34)}
.btn-cta:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,255,255,.10),0 8px 18px rgba(255,159,67,.24)}
.btn-cta:focus-visible{box-shadow:0 0 0 4px rgba(45,226,230,.25)}
.btn-glass{
  background:var(--glass);border-color:var(--line);color:var(--text-main);
  backdrop-filter:blur(10px);
}
.btn-glass:hover{color:var(--text-main);border-color:rgba(45,226,230,.55);transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.3)}
.btn-glass:active{transform:translateY(1px)}
.btn-sm{padding:10px 20px;font-size:14.5px;border-radius:12px}
.btn-cta.btn-sm{padding:10px 20px;border-radius:999px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--primary)}
.link-arrow i{transition:transform .22s ease}
.link-arrow:hover{color:var(--cta);text-decoration:none}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- badges / tags ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.04em;
  background:rgba(45,226,230,.10);border:1px solid rgba(45,226,230,.28);color:var(--primary);
}
.badge-soft.warn{background:rgba(255,159,67,.10);border-color:rgba(255,159,67,.32);color:var(--cta-soft)}
.badge-soft.violet{background:rgba(124,92,255,.14);border-color:rgba(124,92,255,.34);color:#B5A2FF}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  padding:7px 14px;border-radius:999px;font-size:13.5px;color:var(--text-muted);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
}

/* ---------- hero ---------- */
.page-hero{
  position:relative;display:flex;align-items:center;min-height:38vh;
  padding:76px 0 68px;overflow:hidden;
  background:linear-gradient(180deg,rgba(7,11,22,.72),rgba(7,11,22,.95)),url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;left:50%;bottom:-160px;transform:translateX(-50%);
  width:900px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,226,230,.20),transparent 68%);
  filter:blur(20px);pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.hero-card{
  max-width:840px;padding:38px 40px;border-radius:var(--radius-xl);
  background:rgba(11,18,36,.62);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.page-hero h1{font-size:42px;margin:14px 0 18px}
.page-hero h1 .accent{
  background:linear-gradient(120deg,var(--primary),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero .lead{font-size:17px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- breadcrumb ---------- */
.crumb-wrap{padding:26px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;list-style:none;margin:0;padding:0;font-size:13.5px}
.crumb li{display:flex;align-items:center;gap:10px}
.crumb a{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-muted);
  text-decoration:none;transition:all .2s ease;
}
.crumb a:hover{color:var(--primary);border-color:rgba(45,226,230,.45);text-decoration:none}
.crumb .sep{color:rgba(147,164,195,.5)}
.crumb .current{color:var(--text-muted);padding:6px 4px}

/* ---------- cards ---------- */
.glass-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  height:100%;
}
.glass-card:hover{transform:translateY(-4px);border-color:rgba(45,226,230,.5);box-shadow:0 22px 56px rgba(0,0,0,.42),0 0 0 1px rgba(45,226,230,.12),0 0 34px var(--glow)}
.card-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(45,226,230,.18),rgba(124,92,255,.22));
  border:1px solid var(--line);color:var(--primary);font-size:18px;margin-bottom:18px;
}
.glass-card h3{font-size:19px;margin-bottom:10px}
.glass-card p{color:var(--text-muted);font-size:15px;line-height:1.85;margin-bottom:14px}
.card-note{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-muted)}

/* ---------- intro panel ---------- */
.intro-panel{
  background:linear-gradient(150deg,rgba(16,26,51,.86),rgba(11,18,36,.72));
  border:1px solid var(--line);border-radius:var(--radius-xl);padding:38px;
  box-shadow:var(--shadow-card);
}
.intro-panel h2{font-size:28px;margin-bottom:18px}
.intro-panel p{color:var(--text-muted);max-width:72ch}
.intro-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:30px}
.intro-stat{
  padding:20px;border-radius:var(--radius-md);background:rgba(255,255,255,.04);
  border:1px solid var(--line);transition:all .22s ease;
}
.intro-stat:hover{border-color:rgba(45,226,230,.5);box-shadow:0 0 26px rgba(45,226,230,.18)}
.intro-stat strong{display:block;font-size:26px;color:var(--primary);line-height:1.3}
.intro-stat span{font-size:13.5px;color:var(--text-muted)}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:38px;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:13px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,rgba(45,226,230,.6),rgba(124,92,255,.35),transparent);
}
.tl-item{
  position:relative;margin-bottom:20px;padding:24px 26px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);
  backdrop-filter:blur(12px);transition:all .22s ease;
}
.tl-item:hover{border-color:rgba(45,226,230,.5);transform:translateX(4px);box-shadow:0 16px 40px rgba(0,0,0,.35)}
.tl-item::before{
  content:"";position:absolute;left:-31px;top:32px;width:14px;height:14px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 6px rgba(45,226,230,.12),0 0 18px var(--glow);
}
.tl-step{font-size:12.5px;letter-spacing:.16em;color:var(--primary);font-weight:600;margin-bottom:8px;display:block}
.tl-item h3{font-size:19px;margin-bottom:10px}
.tl-item p{color:var(--text-muted);font-size:15px;margin-bottom:0}

/* ---------- scene cards ---------- */
.scene-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);transition:all .22s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(45,226,230,.5);box-shadow:0 24px 60px rgba(0,0,0,.42),0 0 32px var(--glow)}
.scene-media{position:relative;height:186px;overflow:hidden}
.scene-media img{width:100%;height:100%;transition:transform .5s ease}
.scene-card:hover .scene-media img{transform:scale(1.05)}
.scene-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,22,.10),rgba(7,11,22,.78))}
.scene-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.scene-body h3{font-size:19px}
.scene-body p{color:var(--text-muted);font-size:15px;margin:0}
.scene-badge{position:absolute;left:16px;top:16px;z-index:2}

/* ---------- faq ---------- */
.faq-col{display:grid;gap:14px;align-content:start}
.accordion-item{
  background:rgba(255,255,255,.03);border:1px solid var(--line) !important;
  border-radius:var(--radius-md) !important;overflow:hidden;margin-bottom:14px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.accordion-item:hover{border-color:rgba(45,226,230,.4) !important}
.accordion-button{
  background:transparent;color:var(--text-main);font-size:16.5px;font-weight:600;
  line-height:1.6;padding:18px 20px;box-shadow:none !important;
  display:flex;gap:14px;align-items:flex-start;
}
.accordion-button:not(.collapsed){background:rgba(45,226,230,.07);color:#fff}
.accordion-button:focus{border-color:transparent;box-shadow:0 0 0 3px rgba(45,226,230,.2) !important}
.accordion-button::after{
  flex-shrink:0;width:18px;height:18px;margin-left:auto;margin-top:4px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2393A4C3'%3E%3Cpath d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
  background-size:18px;transition:transform .25s ease;
}
.accordion-button:not(.collapsed)::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232DE2E6'%3E%3Cpath d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
}
.accordion-body{padding:0 20px 20px;color:var(--text-muted);font-size:15px;line-height:1.9}

/* ---------- cta panel ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(45,226,230,.12),rgba(124,92,255,.16)),var(--bg-elevated);
  border:1px solid var(--line);border-radius:var(--radius-xl);
  padding:48px;box-shadow:var(--shadow-card);
}
.cta-panel::before{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,226,230,.28),transparent 68%);filter:blur(10px);
}
.cta-panel h2{font-size:30px;margin-bottom:14px}
.cta-panel p{color:var(--text-muted);max-width:62ch;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- footer ---------- */
.site-footer{
  margin-top:20px;padding:66px 0 28px;
  background:var(--bg-panel);border-top:1px solid var(--line);
}
.footer-head{display:flex;flex-wrap:wrap;gap:44px}
.footer-brand{max-width:360px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--text-muted);font-size:14.5px;line-height:1.9;margin:0}
.footer-col h4{font-size:15px;color:var(--text-main);margin-bottom:16px;font-weight:700}
.footer-col ul{list-style:none;display:grid;gap:12px}
.footer-col a{color:var(--text-muted);font-size:14.5px;text-decoration:none}
.footer-col a:hover{color:var(--primary);text-decoration:none}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:52px;padding-top:24px;border-top:1px solid var(--line);
  color:var(--text-muted);font-size:13.5px;
}
.to-top{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-main);
  transition:all .22s ease;
}
.to-top:hover{color:var(--cta);border-color:rgba(255,159,67,.5);transform:translateY(-3px);text-decoration:none}

/* ---------- offcanvas ---------- */
.offcanvas.offcanvas-end{background:rgba(9,14,28,.98);border-left:1px solid var(--line);color:var(--text-main);width:320px}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.offcanvas-body{padding:22px;display:flex;flex-direction:column;gap:10px}
.mobile-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 18px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text-main);font-size:16px;text-decoration:none;transition:all .2s ease;
}
.mobile-link:hover{color:var(--primary);border-color:rgba(45,226,230,.5);text-decoration:none}
.mobile-link.active{background:rgba(45,226,230,.10);border-color:rgba(45,226,230,.45);color:var(--primary)}
.offcanvas-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}

@media (max-width:1200px){
  :root{--section-gap:88px}
  .page-hero h1{font-size:38px}
  .intro-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:992px){
  body{font-size:16px}
  .header-inner{height:68px}
  .brand-text{font-size:16px}
  .page-hero{padding:60px 0 54px;min-height:auto}
  .page-hero h1{font-size:32px}
  .hero-card{padding:30px 26px}
  .section-head h2{font-size:28px}
  .cta-panel h2{font-size:26px}
  .footer-head{gap:32px}
  .footer-brand{max-width:100%}
}
@media (max-width:768px){
  :root{--section-gap:64px}
  .container{padding-left:16px;padding-right:16px}
  .section-tight{padding:56px 0}
  .page-hero h1{font-size:28px}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .intro-grid{grid-template-columns:1fr}
  .intro-panel{padding:26px}
  .cta-panel{padding:30px 24px}
  .glass-card{padding:22px}
  .timeline{padding-left:28px}
  .timeline::before{left:9px}
  .tl-item{padding:20px}
  .tl-item::before{left:-25px;top:28px;width:12px;height:12px}
  .footer-bottom{justify-content:center;text-align:center}
}
@media (max-width:576px){
  .page-hero h1{font-size:26px}
  .section-head h2{font-size:24px}
  .section-head{margin-bottom:34px}
  .hero-card{padding:24px 20px}
  .page-hero::before{display:none}
  .brand-text{font-size:15px}
  .accordion-button{font-size:15.5px;padding:16px}
}