/* roulang page: index */
:root{
  --bg:#071A1F;
  --bg-soft:#0A2329;
  --surface:rgba(18,42,48,.55);
  --surface-2:rgba(20,48,55,.78);
  --primary:#35D0C0;
  --primary-soft:rgba(53,208,192,.14);
  --primary-line:rgba(53,208,192,.42);
  --accent:#FFB454;
  --accent-soft:rgba(255,180,84,.14);
  --warn:#FF7A59;
  --text:#E6F1F2;
  --muted:#9FB3B8;
  --line:rgba(120,200,205,.14);
  --line-strong:rgba(120,200,205,.34);
  --r-lg:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 8px 24px -16px rgba(0,0,0,.6);
  --sh-2:0 18px 40px -20px rgba(53,208,192,.35);
  --sh-3:0 40px 80px -32px rgba(0,0,0,.75);
  --sec-y:104px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(1200px 520px at 78% -10%, rgba(53,208,192,.16), transparent 62%),
    radial-gradient(760px 420px at 4% 2%, rgba(255,180,84,.09), transparent 66%),
    linear-gradient(rgba(120,200,205,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,200,205,.045) 1px, transparent 1px);
  background-size:auto,auto,46px 46px,46px 46px;
  background-attachment:fixed,fixed,scroll,scroll;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:#5FE6D8;}
h1,h2,h3,h4{margin:0 0 14px;font-weight:700;letter-spacing:.01em;color:#F2FAFA;line-height:1.28;}
p{margin:0 0 16px;color:var(--muted);}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(53,208,192,.3);color:#fff;}

.container{max-width:1200px;padding:0 24px;margin:0 auto;}
.sec{padding:var(--sec-y) 0;position:relative;}
.sec-tight{padding:72px 0;}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--primary);background:var(--primary-soft);
  border:1px solid var(--primary-line);border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:18px;
}
.eyebrow i{font-size:11px;}
h2.sec-title{font-size:clamp(24px,3vw,32px);position:relative;padding-left:16px;}
h2.sec-title::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  border-radius:4px;background:linear-gradient(180deg,var(--primary),rgba(53,208,192,.25));
}
.sec-head.center h2.sec-title{padding-left:0;}
.sec-head.center h2.sec-title::before{display:none;}
.sec-desc{font-size:16px;color:var(--muted);margin:0;}

/* ===== 悬浮胶囊导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  padding:16px 0 0;
  transition:padding .24s ease-out;
}
.site-header.is-scrolled{padding-top:10px;}
.pill-nav{
  display:flex;align-items:center;gap:18px;
  background:rgba(9,28,33,.62);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:10px 14px 10px 18px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);
  transition:background .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;
}
.site-header.is-scrolled .pill-nav{
  background:rgba(7,22,26,.88);
  border-color:var(--line-strong);
  box-shadow:0 16px 36px -24px rgba(0,0,0,.85);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:#F2FAFA;}
.brand:hover{color:#F2FAFA;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,rgba(53,208,192,.9),rgba(23,132,124,.9));
  color:#04211F;font-weight:800;font-size:17px;
  box-shadow:0 0 0 1px rgba(53,208,192,.45), 0 8px 22px -12px rgba(53,208,192,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:15px;font-weight:800;letter-spacing:.02em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:4px;margin:0 auto;}
.nav-links a{
  position:relative;display:block;
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:14px;color:var(--muted);white-space:nowrap;
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-links a:hover{color:var(--text);background:rgba(53,208,192,.08);}
.nav-links a.active{color:var(--text);background:rgba(53,208,192,.12);}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(53,208,192,.9);
}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-pill);
  background:rgba(53,208,192,.1);border:1px solid var(--line);
  color:var(--text);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{background:rgba(53,208,192,.2);}

/* ===== 按钮 ===== */
.btn-glow,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:700;font-size:15px;
  padding:13px 28px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,filter .2s ease-out;
  white-space:nowrap;line-height:1;
}
.btn-glow{
  background:linear-gradient(140deg,#41DDCC,#22A79A);color:#03201E;
  box-shadow:0 0 0 1px rgba(53,208,192,.5),0 8px 30px -8px rgba(53,208,192,.55);
}
.btn-glow:hover{color:#03201E;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,208,192,.65),0 14px 36px -10px rgba(53,208,192,.7);}
.btn-glow:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.03);color:var(--text);
  border-color:var(--line-strong);backdrop-filter:blur(8px);
}
.btn-ghost:hover{color:#fff;background:rgba(53,208,192,.14);border-color:var(--primary-line);transform:translateY(-1px);}
.btn-sm{padding:9px 20px;font-size:13.5px;}
.btn-block{width:100%;}

/* ===== Hero ===== */
.hero{
  position:relative;padding:172px 0 96px;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(7,26,31,.72),rgba(7,26,31,.94)),url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,208,192,.5),transparent);
}
.hero-inner{position:relative;z-index:2;}
.hero h1{
  font-size:clamp(30px,4.2vw,46px);font-weight:800;line-height:1.25;margin-bottom:20px;
}
.hero h1 .hl{
  background:linear-gradient(100deg,#5FE6D8,#FFB454);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:#B6C9CD;max-width:620px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px;}
.trust-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--muted);
  background:rgba(18,42,48,.6);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:6px 13px;backdrop-filter:blur(10px);
}
.trust-chip i{color:var(--primary);font-size:11px;}
.hero-visual{position:relative;padding-left:20px;}
.hero-visual img{
  border-radius:var(--r-lg);border:1px solid var(--line-strong);
  box-shadow:var(--sh-3);width:100%;object-fit:cover;aspect-ratio:4/3;
}
.float-badge{
  position:absolute;display:flex;align-items:center;gap:12px;
  background:var(--surface-2);border:1px solid var(--line-strong);
  border-radius:14px;padding:12px 16px;backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
}
.float-badge .num{font-size:22px;font-weight:800;color:var(--accent);line-height:1;}
.float-badge .txt{font-size:12px;color:var(--muted);line-height:1.35;}
.fb-1{top:22px;left:-10px;}
.fb-2{bottom:26px;right:-6px;}
.fb-2 .num{color:var(--primary);}

/* ===== 痛点区 ===== */
.pain-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:20px;align-items:stretch;}
.pain-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px;backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
  overflow:hidden;
}
.pain-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,208,192,.7),transparent);
  opacity:0;transition:opacity .22s ease-out;
}
.pain-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.pain-card:hover::before{opacity:1;}
.pain-card .q-index{font-size:13px;color:var(--primary);font-weight:700;letter-spacing:.1em;margin-bottom:12px;display:block;}
.pain-card h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.pain-card.big h3{font-size:24px;}
.pain-card p{font-size:14.5px;margin:0;}
.pain-col{display:grid;gap:20px;}
.pain-card.big{display:flex;flex-direction:column;justify-content:center;padding:38px 34px;}
.pain-card.big .q-index{font-size:14px;}
.pain-card.big p{font-size:15.5px;}

/* ===== 方案区 ===== */
.solution-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;backdrop-filter:blur(14px);box-shadow:var(--sh-1);height:100%;
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
  position:relative;overflow:hidden;
}
.solution-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,208,192,.7),transparent);
  opacity:0;transition:opacity .22s ease-out;
}
.solution-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.solution-card:hover::before{opacity:1;}
.icon-box{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--primary-soft);border:1px solid var(--primary-line);
  color:var(--primary);font-size:19px;margin-bottom:18px;
}
.icon-box.gold{background:var(--accent-soft);border-color:rgba(255,180,84,.4);color:var(--accent);}
.solution-card h3{font-size:19px;margin-bottom:10px;}
.solution-card p{font-size:14.5px;margin-bottom:16px;}
.point-list li{
  position:relative;padding-left:20px;font-size:14px;color:#BFD2D6;margin-bottom:9px;line-height:1.65;
}
.point-list li:last-child{margin-bottom:0;}
.point-list li::before{
  content:"";position:absolute;left:2px;top:9px;width:7px;height:7px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px rgba(53,208,192,.8);
}
.solution-media{
  border-radius:var(--r-sm);overflow:hidden;border:1px solid var(--line);
  margin-bottom:18px;aspect-ratio:16/9;
}
.solution-media img{width:100%;height:100%;object-fit:cover;}
.solution-tall .solution-media{aspect-ratio:16/10;}

/* ===== 数据带 ===== */
.stats-band{
  position:relative;background:linear-gradient(180deg,rgba(12,34,40,.85),rgba(8,26,31,.6));
  border:1px solid var(--line);border-radius:22px;padding:44px 32px 34px;
  backdrop-filter:blur(14px);overflow:hidden;
}
.stats-band::before{
  content:"";position:absolute;top:0;left:8%;right:8%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,208,192,.65),transparent);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.stat-item{text-align:center;padding:0 8px;position:relative;}
.stat-item:not(:last-child)::after{
  content:"";position:absolute;right:-12px;top:16%;bottom:16%;width:1px;
  background:linear-gradient(180deg,transparent,var(--line-strong),transparent);
}
.stat-num{font-size:clamp(30px,4vw,44px);font-weight:800;color:var(--accent);line-height:1;letter-spacing:.02em;}
.stat-num span{font-size:16px;font-weight:600;margin-left:4px;color:#C9DBDE;}
.stat-label{font-size:14px;color:var(--muted);margin-top:10px;}

/* ===== 最新信息 ===== */
.news-wrap{display:grid;grid-template-columns:1.3fr 1fr;gap:24px;align-items:start;}
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;backdrop-filter:blur(14px);box-shadow:var(--sh-1);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
  display:flex;flex-direction:column;height:100%;
}
.feature-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.feature-cover{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line);}
.feature-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out;}
.feature-card:hover .feature-cover img{transform:scale(1.04);}
.feature-body{padding:24px;}
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--primary);background:var(--primary-soft);
  border:1px solid var(--primary-line);border-radius:var(--r-pill);
  padding:3px 11px;margin-bottom:12px;
}
.badge-tag.gold{color:var(--accent);background:var(--accent-soft);border-color:rgba(255,180,84,.4);}
.feature-body h3{font-size:20px;margin-bottom:10px;}
.feature-body h3 a{color:#F2FAFA;}
.feature-body h3 a:hover{color:var(--primary);}
.excerpt-2{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:14.5px;color:var(--muted);margin-bottom:16px;
}
.meta-row{display:flex;align-items:center;gap:16px;font-size:13px;color:#7F969B;flex-wrap:wrap;}
.meta-row i{margin-right:5px;color:var(--primary);font-size:12px;}
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:16px;backdrop-filter:blur(12px);box-shadow:var(--sh-1);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.news-item:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.news-thumb{
  width:88px;height:66px;flex-shrink:0;border-radius:10px;overflow:hidden;border:1px solid var(--line);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-item h4{font-size:15.5px;font-weight:600;margin:0 0 6px;line-height:1.45;}
.news-item h4 a{color:#E9F5F5;}
.news-item h4 a:hover{color:var(--primary);}
.news-item .meta-row{font-size:12px;}
.empty-state{
  text-align:center;padding:52px 24px;border:1px dashed var(--line-strong);
  border-radius:var(--r-lg);background:rgba(18,42,48,.4);color:var(--muted);
}
.empty-state i{font-size:28px;color:var(--primary);display:block;margin-bottom:14px;}
.empty-state p{margin:0 0 16px;font-size:15px;}

/* ===== CTA 横幅 ===== */
.cta-band{
  position:relative;border-radius:22px;overflow:hidden;
  border:1px solid var(--line-strong);
  background-image:linear-gradient(110deg,rgba(7,26,31,.92),rgba(9,40,44,.78)),url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;
  padding:52px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-3);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;}
.cta-band p{margin:0;max-width:600px;font-size:15px;}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0;}
.privacy-note{
  margin-top:16px;font-size:13px;color:#7E9297;line-height:1.7;
  display:flex;align-items:flex-start;gap:10px;
}
.privacy-note i{color:var(--primary);margin-top:4px;}
.privacy-note a{color:#9FB3B8;text-decoration:underline;text-underline-offset:3px;}
.privacy-note a:hover{color:var(--primary);}

/* ===== FAQ ===== */
.faq-list{max-width:900px;margin:0 auto;}
.accordion-item{
  background:var(--surface);border:1px solid var(--line)!important;
  border-radius:var(--r-sm)!important;margin-bottom:12px;overflow:hidden;
  backdrop-filter:blur(12px);transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.accordion-item:hover{border-color:var(--line-strong)!important;}
.accordion-button{
  position:relative;background:transparent!important;color:#EAF6F6!important;
  font-size:16px;font-weight:600;padding:20px 56px 20px 24px;box-shadow:none!important;
  border-left:3px solid transparent;transition:border-color .22s ease-out,background .22s ease-out;
}
.accordion-button::after{display:none;}
.accordion-button .faq-icon{
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--primary);font-size:11px;
  transition:transform .22s ease-out,background .22s ease-out;
}
.accordion-button:not(.collapsed){
  background:rgba(53,208,192,.08)!important;border-left-color:var(--primary);color:#fff!important;
}
.accordion-button:not(.collapsed) .faq-icon{transform:translateY(-50%) rotate(135deg);background:var(--primary-soft);}
.accordion-body{padding:4px 24px 22px 24px;color:var(--muted);font-size:15px;line-height:1.8;}

/* ===== 页脚 ===== */
.site-footer{
  border-top:1px solid var(--line);margin-top:24px;padding:64px 0 0;
  background:linear-gradient(180deg,rgba(8,26,31,.4),rgba(5,18,22,.9));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:#8FA4A9;max-width:320px;}
.footer-col h4{font-size:15px;color:#DCEAEB;margin-bottom:18px;font-weight:700;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{font-size:14px;color:#8FA4A9;}
.footer-col ul a:hover{color:var(--primary);}
.footer-col .contact-line{font-size:14px;color:#8FA4A9;margin-bottom:10px;display:flex;gap:9px;align-items:flex-start;}
.footer-col .contact-line i{color:var(--primary);margin-top:4px;font-size:13px;}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);padding:22px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#75898E;
}
.footer-bottom a{color:#75898E;}
.footer-bottom a:hover{color:var(--primary);}

/* ===== Modal / 表单 ===== */
.modal-backdrop.show{opacity:.72;backdrop-filter:blur(6px);}
.modal-content{
  background:linear-gradient(180deg,rgba(12,36,42,.98),rgba(8,25,30,.98));
  border:1px solid var(--line-strong);border-radius:20px;box-shadow:var(--sh-3);
  color:var(--text);
}
.modal-header{border-bottom:1px solid var(--line);padding:22px 26px;}
.modal-title{font-size:19px;font-weight:700;color:#F1FAFA;}
.modal-body{padding:24px 26px;}
.modal-footer{border-top:1px solid var(--line);padding:18px 26px;}
.btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7;}
.form-label{font-size:13.5px;color:#B9CCD0;margin-bottom:7px;font-weight:600;}
.form-control,.form-select{
  background:rgba(6,22,26,.85);border:1px solid var(--line);border-radius:10px;
  color:var(--text);padding:11px 14px;font-size:14.5px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.form-control::placeholder{color:#6C8186;}
.form-control:focus,.form-select:focus{
  background:rgba(6,22,26,.95);border-color:var(--primary);color:var(--text);
  box-shadow:0 0 0 3px rgba(53,208,192,.18);outline:none;
}
.form-select option{background:#0A2329;color:var(--text);}
.form-check-input{
  background-color:rgba(6,22,26,.9);border:1px solid var(--line-strong);
  width:17px;height:17px;margin-top:3px;
}
.form-check-input:checked{background-color:var(--primary);border-color:var(--primary);}
.form-check-label{font-size:13.5px;color:#93A9AE;line-height:1.7;}
.form-hint{font-size:12.5px;color:#7B9095;margin-top:8px;}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  .hero{padding-top:158px;}
  .hero-visual{padding-left:0;margin-top:44px;}
  .fb-1{left:12px;}
  .fb-2{right:12px;}
}
@media (max-width:991.98px){
  :root{--sec-y:76px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .pill-nav{justify-content:space-between;}
  .pain-grid{grid-template-columns:1fr;}
  .news-wrap{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px 20px;}
  .stat-item:nth-child(2)::after{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 28px;}
  .hero{padding:146px 0 76px;}
}
@media (max-width:767.98px){
  .container{padding:0 20px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%;max-width:calc(100vw - 32px);}
  .pain-card.big{padding:28px 22px;}
  .stats-band{padding:32px 20px 26px;}
  .cta-band{padding:32px 22px;}
  .feature-body{padding:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  :root{--sec-y:56px;}
  .brand-text em{display:none;}
  .stats-grid{grid-template-columns:1fr;}
  .stat-item::after{display:none!important;}
  .news-item{flex-direction:column;}
  .news-thumb{width:100%;height:150px;}
  .brand-mark{width:34px;height:34px;font-size:15px;}
}
.offcanvas{
  background:rgba(8,26,31,.96);border-left:1px solid var(--line-strong);
  backdrop-filter:blur(16px);color:var(--text);width:300px;
}
.offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px;}
.offcanvas-title{font-size:16px;font-weight:700;}
.offcanvas-body{padding:18px 14px;}
.offcanvas .nav-links{display:flex;flex-direction:column;align-items:stretch;gap:6px;margin:0;}
.offcanvas .nav-links a{padding:14px 16px;font-size:15.5px;border-radius:12px;}
.offcanvas .nav-links a.active::after{display:none;}
.offcanvas .nav-links a.active{background:rgba(53,208,192,.16);color:#fff;border-left:3px solid var(--primary);}
.offcanvas .drawer-cta{margin-top:18px;padding:0 8px;}

/* roulang page: article */
:root{
  --bg:#071A1F;
  --bg-soft:#0B2429;
  --primary:#35D0C0;
  --primary-strong:#5FE3D5;
  --accent:#FFB454;
  --text:#E6F1F2;
  --muted:#9FB3B8;
  --line:rgba(120,200,205,.14);
  --line-strong:rgba(120,200,205,.30);
  --glass:rgba(18,42,48,.55);
  --glass-deep:rgba(9,28,33,.86);
  --danger:#FF7A59;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px -16px rgba(0,0,0,.6);
  --shadow-2:0 18px 40px -20px rgba(53,208,192,.35);
  --shadow-3:0 40px 80px -32px rgba(0,0,0,.75);
  --section-y:clamp(56px,7vw,104px);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  font-variant-numeric:tabular-nums;
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 520px at 10% -12%, rgba(53,208,192,.16), transparent 62%),
    radial-gradient(760px 420px at 94% 2%, rgba(255,180,84,.10), transparent 64%),
    linear-gradient(rgba(120,200,205,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,200,205,.045) 1px, transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-md)}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--primary-strong)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:rgba(53,208,192,.28)}
.container{max-width:1200px;padding-inline:24px}
h1,h2,h3,h4{margin:0;letter-spacing:.01em;color:var(--text)}
p{margin:0 0 1em}
.text-muted-2{color:var(--muted)}
.section{padding:var(--section-y) 0}
.section-head{margin-bottom:38px;max-width:760px}
.section-head .kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.12em;color:var(--primary);text-transform:uppercase;margin-bottom:12px}
.section-head .kicker::before{content:"";width:22px;height:1px;background:var(--primary);display:inline-block}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.35}
.section-head p{margin-top:12px;color:var(--muted);font-size:15px}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1035;padding:14px 0}
.pill-nav{
  display:flex;align-items:center;gap:16px;
  padding:10px 14px 10px 16px;
  border-radius:var(--radius-pill);
  background:rgba(11,30,35,.62);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  transition:background .25s ease-out, box-shadow .25s ease-out, border-color .25s ease-out;
}
.site-header.is-scrolled .pill-nav{background:rgba(7,22,27,.9);border-color:var(--line-strong);box-shadow:0 16px 36px -22px rgba(0,0,0,.9)}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex-shrink:0}
.brand:hover{color:var(--text)}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:18px;color:#04211f;background:linear-gradient(135deg,var(--primary),#9CF3E8);box-shadow:0 10px 24px -14px rgba(53,208,192,.95)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:15px;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0 auto 0 6px;padding:0}
.nav-links a{display:inline-block;padding:8px 12px;border-radius:var(--radius-pill);color:var(--muted);font-size:14px;position:relative;transition:color .2s ease-out,background .2s ease-out}
.nav-links a:hover{color:var(--text);background:rgba(53,208,192,.08)}
.nav-links a.active{color:var(--primary);background:rgba(53,208,192,.10)}
.nav-links a.active::after{content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);width:5px;height:5px;border-radius:50%;background:var(--primary)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--radius-pill);border:1px solid var(--line);background:rgba(53,208,192,.08);color:var(--primary);align-items:center;justify-content:center}
.nav-toggle:hover{background:rgba(53,208,192,.16)}

/* 按钮 */
.btn-glow,.btn-ghost,.btn-accent{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-pill);font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease-out,box-shadow .22s ease-out,background .22s ease-out,color .22s ease-out;white-space:nowrap}
.btn-glow{padding:13px 26px;font-size:15px;color:#04211F;background:linear-gradient(135deg,#5FE3D5,#2CC2B3);box-shadow:0 0 0 1px rgba(53,208,192,.5),0 8px 30px -8px rgba(53,208,192,.55)}
.btn-glow:hover{color:#04211F;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,208,192,.6),0 16px 36px -12px rgba(53,208,192,.7)}
.btn-glow:active{transform:translateY(1px)}
.btn-ghost{padding:13px 26px;font-size:15px;color:var(--text);background:rgba(53,208,192,.06);border-color:rgba(53,208,192,.42)}
.btn-ghost:hover{color:var(--text);background:rgba(53,208,192,.16);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-accent{padding:12px 24px;font-size:15px;color:#2A1802;background:linear-gradient(135deg,#FFC978,#FFA933);box-shadow:0 10px 28px -14px rgba(255,180,84,.9)}
.btn-accent:hover{color:#2A1802;filter:brightness(1.05);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-link-text{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;padding-bottom:1px;border-bottom:1px solid transparent}
.btn-link-text:hover{border-bottom-color:var(--primary)}

/* 文章页首屏 */
.article-banner{position:relative;padding:64px 0 56px;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;border-bottom:1px solid var(--line);overflow:hidden}
.article-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(6,22,27,.9),rgba(6,22,27,.66) 55%,rgba(6,22,27,.92))}
.article-banner .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{opacity:.5}
.crumb .current{color:#CFE4E6;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tag-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--radius-pill);font-size:12.5px;font-weight:600;color:var(--primary);background:rgba(53,208,192,.12);border:1px solid rgba(53,208,192,.28)}
.article-banner h1{font-size:clamp(30px,4.2vw,46px);font-weight:800;line-height:1.25;margin:18px 0 18px;max-width:960px}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:var(--muted)}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--primary)}

/* 文章主体 */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}
.article-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(22px,3.4vw,44px);backdrop-filter:blur(14px);box-shadow:var(--shadow-1)}
.prose{max-width:820px;font-size:16px;line-height:1.8}
.prose > :first-child{margin-top:0}
.prose h2{position:relative;font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.4;margin:46px 0 16px;padding-left:16px}
.prose h2::before{content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--primary),rgba(53,208,192,.18))}
.prose h3{font-size:20px;font-weight:600;margin:32px 0 12px}
.prose h4{font-size:17px;font-weight:600;margin:24px 0 10px;color:#CFE4E6}
.prose p{margin:0 0 1em;color:#DCEAEC}
.prose strong{color:#F2FAFA;font-weight:700}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:0;list-style:none}
.prose ul li{position:relative;padding-left:22px;margin-bottom:9px}
.prose ul li::before{content:"";position:absolute;left:2px;top:.66em;width:7px;height:7px;border-radius:2px;background:var(--primary);transform:rotate(45deg)}
.prose ol{counter-reset:proseItem}
.prose ol li{position:relative;padding-left:32px;margin-bottom:9px;counter-increment:proseItem}
.prose ol li::before{content:counter(proseItem);position:absolute;left:0;top:.28em;width:20px;height:20px;border-radius:50%;font-size:12px;font-weight:700;color:#04211F;background:rgba(53,208,192,.85);display:grid;place-items:center;line-height:1}
.prose blockquote{margin:26px 0;padding:18px 24px;border-left:3px solid var(--primary);border-radius:0 var(--radius-md) var(--radius-md) 0;background:rgba(18,42,48,.62);color:#CFE4E6;backdrop-filter:blur(10px)}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:var(--radius-lg);margin:22px 0 10px;border:1px solid var(--line)}
.prose figure{margin:24px 0}
.prose figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose a:hover{color:var(--primary-strong)}
.prose table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.prose th,.prose td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.prose th{background:rgba(53,208,192,.09);color:#DFF3F4;font-weight:600}
.prose hr{border:0;border-top:1px solid var(--line);margin:34px 0}
.empty-box{text-align:center;padding:56px 20px;background:var(--glass);border:1px dashed var(--line-strong);border-radius:var(--radius-lg)}
.empty-box i{font-size:34px;color:var(--primary);margin-bottom:16px;display:block}
.empty-box h2{font-size:22px;font-weight:700;margin-bottom:10px}
.empty-box p{color:var(--muted);margin-bottom:20px}

/* 侧栏 */
.article-side{position:sticky;top:100px;display:grid;gap:20px}
.side-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;backdrop-filter:blur(14px);box-shadow:var(--shadow-1);transition:border-color .22s ease-out,box-shadow .22s ease-out}
.side-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow-2)}
.side-card h3{font-size:16px;font-weight:700;display:flex;align-items:center;gap:8px;margin-bottom:16px}
.side-card h3 i{color:var(--primary);font-size:14px}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.side-list a{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#CFE4E6;line-height:1.55}
.side-list a:hover{color:var(--primary)}
.side-list .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);flex-shrink:0;margin-top:9px;opacity:.8}
.side-post{display:flex;gap:12px;align-items:center;padding:8px;border-radius:var(--radius-md);transition:background .2s ease-out}
.side-post:hover{background:rgba(53,208,192,.08)}
.side-post img{width:64px;height:48px;object-fit:cover;border-radius:10px;flex-shrink:0}
.side-post .t{font-size:13.5px;color:#DCEAEC;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-post .d{font-size:12px;color:var(--muted);margin-top:4px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{padding:6px 13px;border-radius:var(--radius-pill);font-size:12.5px;color:#CFE4E6;background:rgba(53,208,192,.08);border:1px solid var(--line);transition:all .2s ease-out}
.tag-cloud a:hover{color:#04211F;background:var(--primary);border-color:var(--primary)}
.side-back{display:flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:var(--radius-pill);border:1px solid rgba(53,208,192,.42);background:rgba(53,208,192,.06);color:var(--text);font-size:14px;font-weight:600}
.side-back:hover{background:rgba(53,208,192,.16);color:var(--text)}

/* 相关推荐 */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.related-card{display:flex;flex-direction:column;background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;backdrop-filter:blur(14px);box-shadow:var(--shadow-1);transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out}
.related-card::before{content:"";display:block;height:1px;background:linear-gradient(90deg,transparent,rgba(53,208,192,.8),transparent);opacity:0;transition:opacity .22s ease-out}
.related-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-2)}
.related-card:hover::before{opacity:1}
.related-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.related-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-card h4{font-size:17px;font-weight:600;line-height:1.5}
.related-card h4 a{color:var(--text)}
.related-card h4 a:hover{color:var(--primary)}
.related-card p{font-size:14px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card .more{margin-top:auto;font-size:13.5px;font-weight:600}

/* FAQ */
.faq .accordion-item{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);margin-bottom:14px;overflow:hidden;backdrop-filter:blur(14px)}
.faq .accordion-button{background:transparent;color:var(--text);font-size:16px;font-weight:600;padding:20px 22px;box-shadow:none;border-radius:var(--radius-lg);line-height:1.55}
.faq .accordion-button:not(.collapsed){color:var(--primary);background:rgba(53,208,192,.07);border-left:3px solid var(--primary)}
.faq .accordion-button:focus{box-shadow:none}
.faq .accordion-button::after{content:"";background-image:none;width:9px;height:9px;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(45deg);margin-left:auto;margin-top:-4px;transition:transform .22s ease-out}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);margin-top:4px}
.faq .accordion-body{padding:4px 24px 22px;color:var(--muted);font-size:15px;line-height:1.8}

/* CTA */
.cta-band{position:relative;border-radius:24px;overflow:hidden;border:1px solid var(--line-strong);background:linear-gradient(120deg,rgba(14,44,50,.95),rgba(9,26,31,.95));padding:clamp(32px,5vw,58px);box-shadow:var(--shadow-3)}
.cta-band::after{content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(255,180,84,.22),transparent 65%)}
.cta-band .inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);font-weight:700;line-height:1.35;margin-bottom:10px}
.cta-band p{color:var(--muted);margin:0;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* 页脚 */
.site-footer{border-top:1px solid var(--line);background:rgba(5,18,22,.86);padding:64px 0 26px;margin-top:var(--section-y)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col a{color:var(--muted);font-size:14px}
.footer-col a:hover{color:var(--primary)}
.contact-line{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:14px;margin-bottom:12px}
.contact-line i{color:var(--primary);width:16px;text-align:center}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;margin-top:44px;padding-top:22px;border-top:1px solid rgba(53,208,192,.16);color:var(--muted);font-size:13px}

/* 移动端抽屉 */
.offcanvas.drawer{background:var(--glass-deep);color:var(--text);border-left:1px solid var(--line);backdrop-filter:blur(16px);max-width:86vw}
.offcanvas.drawer .offcanvas-header{border-bottom:1px solid var(--line)}
.offcanvas.drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6)}
.drawer-links{list-style:none;margin:0;padding:8px 0 0;display:grid;gap:6px}
.drawer-links a{display:block;padding:15px 14px;border-radius:var(--radius-md);color:#DCEAEC;font-size:16px;border:1px solid transparent}
.drawer-links a:hover,.drawer-links a.active{background:rgba(53,208,192,.12);color:var(--primary);border-color:rgba(53,208,192,.24)}

@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:32px}
}
@media (max-width:991.98px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .pill-nav{gap:10px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;top:auto}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  .container{padding-inline:18px}
  .brand-text em{display:none}
  .article-banner{padding:44px 0 40px}
  .crumb .current{white-space:normal}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band .inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{flex:1 1 auto}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr}
  .article-card{padding:20px 16px}
  .nav-cta{display:none}
}

/* roulang page: category1 */
:root{
  --bg:#071A1F;
  --bg-soft:#0B2429;
  --primary:#35D0C0;
  --primary-strong:#5BE3D5;
  --primary-dim:rgba(53,208,192,.14);
  --accent:#FFB454;
  --danger:#FF7A59;
  --text:#E6F1F2;
  --muted:#9FB3B8;
  --border:rgba(120,200,205,.14);
  --border-strong:rgba(120,200,205,.34);
  --surface:rgba(18,42,48,.55);
  --surface-2:rgba(10,30,35,.78);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px -16px rgba(0,0,0,.6);
  --shadow-2:0 18px 40px -20px rgba(53,208,192,.35);
  --shadow-3:0 40px 80px -32px rgba(0,0,0,.75);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 520px at 80% -8%, rgba(53,208,192,.16), transparent 70%),
    radial-gradient(680px 420px at 4% 4%, rgba(255,180,84,.07), transparent 70%),
    linear-gradient(rgba(120,200,205,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,200,205,.04) 1px, transparent 1px);
  background-size:auto,auto,44px 44px,44px 44px;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--primary-strong)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
h1,h2,h3,h4{margin:0;letter-spacing:.01em;line-height:1.3}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
::selection{background:rgba(53,208,192,.32);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:576px){.container{max-width:1200px}}
@media (min-width:768px){.container{max-width:1200px}}
@media (min-width:992px){.container{max-width:1200px}}
@media (min-width:1200px){.container{max-width:1200px}}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1030;padding:16px 0;transition:padding .24s var(--ease)}
.pill-nav{
  display:flex;align-items:center;gap:20px;
  padding:10px 12px 10px 18px;
  border-radius:var(--radius-pill);
  background:rgba(9,28,33,.62);
  border:1px solid var(--border);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-1);
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled .pill-nav{background:rgba(7,26,31,.9);border-color:var(--border-strong);box-shadow:0 14px 34px -22px rgba(0,0,0,.85)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;
  font-size:15px;font-weight:700;color:#04211F;
  background:linear-gradient(140deg,#7BF0E2,var(--primary) 55%,#1FA99B);
  box-shadow:0 0 0 1px rgba(53,208,192,.45),0 8px 20px -10px rgba(53,208,192,.7);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:15px;font-weight:800;color:var(--text);letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0 0 0 auto;padding:0}
.nav-links a{
  position:relative;display:block;
  padding:8px 14px;border-radius:var(--radius-pill);
  font-size:14.5px;color:var(--muted);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-links a:hover{color:var(--text);background:rgba(53,208,192,.1)}
.nav-links a.active{color:var(--text);background:rgba(53,208,192,.12)}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(53,208,192,.8);
}
.nav-links a{white-space:nowrap}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border:0;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;color:#04211F;cursor:pointer;
  background:linear-gradient(150deg,#7BF0E2,var(--primary) 60%,#25B7A8);
  box-shadow:0 0 0 1px rgba(53,208,192,.5),0 8px 30px -8px rgba(53,208,192,.55);
  transition:transform .18s var(--ease),filter .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-glow:hover{filter:brightness(1.08);transform:translateY(-1px);color:#04211F}
.btn-glow:active{transform:translateY(1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.nav-cta{flex-shrink:0;white-space:nowrap}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;color:var(--text);cursor:pointer;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border-strong);
  transition:background-color .2s var(--ease),transform .18s var(--ease),border-color .2s var(--ease);
}
.btn-ghost:hover{background:var(--primary-dim);color:var(--text);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  background:rgba(53,208,192,.1);border:1px solid var(--border);
  color:var(--text);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{background:rgba(53,208,192,.2)}

/* ---------- 分类首屏 ---------- */
.cat-hero{position:relative;padding:172px 0 96px;overflow:hidden;border-bottom:1px solid var(--border)}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.42;
}
.cat-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,26,31,.78) 0%,rgba(7,26,31,.9) 55%,var(--bg) 100%);
}
.cat-hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:22px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary)}
.crumb span.sep{opacity:.5}
.crumb .current{color:var(--text)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;color:var(--primary);
  background:rgba(53,208,192,.1);border:1px solid rgba(53,208,192,.28);
  margin-bottom:20px;
}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,46px);
  font-weight:800;line-height:1.25;margin-bottom:18px;
}
.cat-hero h1 .hl{
  color:var(--primary);
  background:linear-gradient(180deg,transparent 66%,rgba(53,208,192,.22) 66%);
}
.hero-sub{font-size:17px;color:var(--muted);max-width:640px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px}
.trust-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--radius-pill);
  font-size:13px;color:var(--muted);
  background:rgba(255,255,255,.035);border:1px solid var(--border);
}
.trust-chip i{color:var(--primary);font-size:12px}
.hero-panel{
  position:relative;
  padding:26px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
}
.hero-panel h3{font-size:18px;font-weight:700;margin-bottom:6px}
.hero-panel .panel-note{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.panel-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.panel-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--text)}
.panel-list li i{
  margin-top:4px;color:var(--primary);font-size:13px;
  width:22px;height:22px;flex:0 0 22px;border-radius:50%;
  display:grid;place-items:center;background:rgba(53,208,192,.12);
}
.float-badge{
  position:absolute;right:-14px;bottom:-22px;
  display:flex;align-items:center;gap:12px;
  padding:14px 18px;border-radius:var(--radius-lg);
  background:rgba(9,28,33,.86);border:1px solid rgba(255,180,84,.3);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-2);
}
.float-badge .num{font-size:24px;font-weight:800;color:var(--accent);line-height:1}
.float-badge .lbl{font-size:12.5px;color:var(--muted);line-height:1.35}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;position:relative}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{
  font-size:clamp(24px,3vw,32px);font-weight:700;position:relative;padding-left:16px;margin-bottom:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:5px;height:74%;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),rgba(53,208,192,.15));
  box-shadow:0 0 14px rgba(53,208,192,.5);
}
.section-head p{color:var(--muted);font-size:16px;margin:0}
.section-alt{background:linear-gradient(180deg,rgba(11,36,41,.72),rgba(7,26,31,.2))}

/* ---------- 图文交替长条 ---------- */
.zigzag{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;align-items:center;
  padding:40px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  position:relative;overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.zigzag + .zigzag{margin-top:32px}
.zigzag::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,208,192,.55),transparent);
  opacity:0;transition:opacity .22s var(--ease);
}
.zigzag:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow-2)}
.zigzag:hover::before{opacity:1}
.zigzag.flip .zigzag-media{order:2}
.zigzag.flip .zigzag-body{order:1}
.zigzag-media{position:relative;border-radius:var(--radius-md);overflow:hidden}
.zigzag-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-md);
  transition:transform .4s var(--ease);
}
.zigzag:hover .zigzag-media img{transform:scale(1.03)}
.zigzag-media .media-tag{
  position:absolute;left:14px;top:14px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12.5px;color:#04211F;font-weight:700;
  background:linear-gradient(150deg,#7BF0E2,var(--primary));
  box-shadow:0 6px 18px -8px rgba(53,208,192,.8);
}
.zigzag-body h3{font-size:21px;font-weight:700;margin-bottom:14px}
.zigzag-body p{color:var(--muted);font-size:15.5px}
.check-list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:10px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text)}
.check-list li i{color:var(--primary);font-size:13px;margin-top:6px;flex:0 0 auto}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:50%;margin-bottom:14px;
  font-size:14px;font-weight:800;color:var(--accent);
  background:rgba(255,180,84,.12);border:1px solid rgba(255,180,84,.32);
}

/* ---------- 自查清单 ---------- */
.audit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.audit-card{
  padding:26px 24px;border-radius:var(--radius-md);
  background:var(--surface);border:1px solid var(--border);
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.audit-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow-2)}
.audit-card .idx{
  font-size:13px;font-weight:800;color:var(--primary);
  letter-spacing:.08em;margin-bottom:12px;display:block;
}
.audit-card h3{font-size:17px;font-weight:700;margin-bottom:10px}
.audit-card p{font-size:14.5px;color:var(--muted);margin:0}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.accordion-item{
  background:var(--surface);border:1px solid var(--border);
  border-radius:14px;margin-bottom:12px;overflow:hidden;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  background:transparent;color:var(--text);
  font-size:16.5px;font-weight:600;
  padding:18px 22px;box-shadow:none;
  display:flex;align-items:center;gap:14px;
}
.accordion-button:not(.collapsed){background:rgba(53,208,192,.08);color:var(--primary)}
.accordion-button:focus{box-shadow:none;border-color:transparent}
.accordion-button::after{
  content:"";margin-left:auto;width:10px;height:10px;
  background-image:none;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:rotate(45deg);transition:transform .22s var(--ease);
  flex:0 0 auto;
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.accordion-body{padding:4px 22px 22px;color:var(--muted);font-size:15px;border-left:0}
.accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--primary)}

/* ---------- CTA 横幅 ---------- */
.cta-band{padding:0 0 96px}
.cta-card{
  position:relative;overflow:hidden;
  padding:56px 48px;border-radius:24px;text-align:center;
  background:linear-gradient(150deg,rgba(53,208,192,.16),rgba(18,42,48,.72) 55%,rgba(255,180,84,.1));
  border:1px solid rgba(53,208,192,.28);
  box-shadow:var(--shadow-3);
}
.cta-card h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;margin-bottom:14px}
.cta-card p{color:var(--muted);max-width:640px;margin:0 auto 28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-meta{margin-top:22px;font-size:13px;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--border);
  background:linear-gradient(180deg,rgba(11,36,41,.6),rgba(5,18,22,.95));
  padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand p{color:var(--muted);font-size:14.5px;margin-top:16px;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col ul a{font-size:14.5px;color:var(--muted)}
.footer-col ul a:hover{color:var(--primary)}
.contact-line{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--muted);margin-bottom:12px}
.contact-line i{color:var(--primary);width:16px;text-align:center}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--muted);
}

/* ---------- 移动端抽屉 ---------- */
.glass-drawer{
  background:rgba(7,26,31,.96)!important;
  border-left:1px solid var(--border)!important;
  backdrop-filter:blur(18px);color:var(--text);
}
.glass-drawer .offcanvas-header{border-bottom:1px solid var(--border);padding:20px 22px}
.glass-drawer .offcanvas-body{padding:22px}
.drawer-links{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 18px;border-radius:14px;font-size:16px;color:var(--text);
  background:rgba(255,255,255,.035);border:1px solid var(--border);
}
.drawer-links a.active{color:var(--primary);border-color:rgba(53,208,192,.4);background:rgba(53,208,192,.1)}
.drawer-links a i{color:var(--muted);font-size:13px}
.btn-close-glass{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--border);
  background:rgba(255,255,255,.04);color:var(--text);display:grid;place-items:center;cursor:pointer;
}
.btn-close-glass:hover{background:rgba(53,208,192,.16)}
.drawer-cta{margin-top:22px;width:100%}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{gap:40px}
  .zigzag{gap:32px;padding:32px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .pill-nav{gap:12px;padding:9px 10px 9px 14px}
  .cat-hero{padding:150px 0 76px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .float-badge{right:12px;bottom:-18px}
  .section{padding:72px 0}
  .cta-band{padding:0 0 72px}
  .zigzag{grid-template-columns:1fr;gap:24px;padding:26px}
  .zigzag.flip .zigzag-media{order:0}
  .zigzag.flip .zigzag-body{order:0}
  .audit-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
  .cta-card{padding:44px 28px}
}
@media (max-width:575px){
  .container{padding:0 20px}
  .cat-hero{padding:132px 0 64px}
  .section{padding:56px 0}
  .cta-band{padding:0 0 56px}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%;max-width:calc(100vw - 32px)}
  .audit-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .brand-text em{font-size:10.5px}
  .zigzag{padding:22px}
  .cta-card{padding:36px 22px;border-radius:20px}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%;max-width:calc(100vw - 32px)}
}

/* roulang page: category3 */
:root{
  --bg:#071A1F;
  --bg-soft:#0B2429;
  --primary:#35D0C0;
  --primary-dim:rgba(53,208,192,.14);
  --accent:#FFB454;
  --danger:#FF7A59;
  --text:#E6F1F2;
  --muted:#9FB3B8;
  --line:rgba(120,200,205,.14);
  --line-strong:rgba(120,200,205,.30);
  --glass:rgba(18,42,48,.55);
  --glass-solid:rgba(13,34,39,.88);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px -16px rgba(0,0,0,.6);
  --shadow-2:0 18px 40px -20px rgba(53,208,192,.35);
  --shadow-3:0 40px 80px -32px rgba(0,0,0,.75);
  --dur:.22s;
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 82% -6%, rgba(53,208,192,.16), transparent 62%),
    radial-gradient(900px 520px at 6% 4%, rgba(255,180,84,.08), transparent 60%),
    linear-gradient(180deg,#071A1F 0%,#06161A 100%);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(120,200,205,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,200,205,.045) 1px,transparent 1px);
  background-size:64px 64px,64px 64px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--dur) ease-out;}
a:hover{color:#5EE3D5;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:.01em;}
h1{font-size:clamp(30px,4.2vw,46px);font-weight:800;line-height:1.25;}
h2{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.32;}
h3{font-size:21px;font-weight:600;line-height:1.4;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.section{padding:104px 0;position:relative;z-index:1;}
.section--tight{padding:76px 0;}
.section-head{max-width:760px;margin-bottom:52px;}
.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:2px;background:var(--primary);border-radius:2px;
}
.section-head h2{position:relative;padding-left:16px;margin-bottom:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  border-radius:4px;background:linear-gradient(180deg,var(--primary),rgba(53,208,192,.25));
}
.section-head p{color:var(--muted);font-size:16px;margin:0;}

/* ============ 悬浮胶囊导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  padding:16px 0 6px;
  transition:padding var(--dur) ease-out;
}
.site-header.is-scrolled{padding-top:10px;}
.pill-nav{
  display:flex;align-items:center;gap:18px;
  padding:10px 12px 10px 16px;
  border-radius:var(--radius-pill);
  background:rgba(10,28,33,.62);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-1);
  transition:background var(--dur) ease-out,border-color var(--dur) ease-out;
}
.site-header.is-scrolled .pill-nav{
  background:var(--glass-solid);
  border-color:var(--line-strong);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,rgba(53,208,192,.9),rgba(28,150,142,.85));
  color:#04201F;font-weight:800;font-size:17px;
  box-shadow:0 6px 18px -10px rgba(53,208,192,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:15px;font-weight:800;color:var(--text);}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.06em;}
.nav-links{
  display:flex;align-items:center;gap:4px;
  margin:0 auto;padding:0;flex:1 1 auto;justify-content:center;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 13px;
  font-size:14px;color:var(--muted);
  border-radius:var(--radius-pill);
  transition:color var(--dur) ease-out,background var(--dur) ease-out;
}
.nav-links a:hover{color:var(--text);background:rgba(53,208,192,.08);}
.nav-links a.active{color:var(--primary);background:rgba(53,208,192,.10);}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(53,208,192,.9);
}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;
  font-size:15px;font-weight:600;
  color:#04201F;
  background:linear-gradient(180deg,#4CDFD0,#2BBDAE);
  border:none;border-radius:var(--radius-pill);
  box-shadow:0 0 0 1px rgba(53,208,192,.5),0 8px 30px -8px rgba(53,208,192,.55);
  transition:transform var(--dur) ease-out,filter var(--dur) ease-out,box-shadow var(--dur) ease-out;
  white-space:nowrap;
}
.btn-glow:hover{color:#04201F;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,208,192,.6),0 14px 36px -10px rgba(53,208,192,.7);}
.btn-glow:active{transform:translateY(1px);}
.btn-sm{padding:9px 18px;font-size:13.5px;}
.nav-cta{flex:0 0 auto;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;font-size:15px;font-weight:600;
  color:var(--text);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-pill);
  backdrop-filter:blur(8px);
  transition:background var(--dur) ease-out,border-color var(--dur) ease-out,transform var(--dur) ease-out,color var(--dur) ease-out;
}
.btn-ghost:hover{color:var(--text);background:var(--primary-dim);border-color:rgba(53,208,192,.55);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.nav-toggle{
  display:none;
  width:40px;height:40px;flex:0 0 auto;
  align-items:center;justify-content:center;
  color:var(--text);font-size:16px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:50%;
  cursor:pointer;
}
.nav-toggle:hover{background:var(--primary-dim);border-color:var(--line-strong);}

/* offcanvas 抽屉 */
.offcanvas.drawer{
  background:var(--glass-solid);
  backdrop-filter:blur(18px);
  border-left:1px solid var(--line-strong);
  color:var(--text);
  width:min(340px,86vw);
}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px;}
.drawer .offcanvas-body{padding:18px 22px 28px;}
.drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7;}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:22px;}
.drawer-links a{
  display:block;padding:13px 16px;font-size:15px;color:var(--text);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  transition:background var(--dur) ease-out,border-color var(--dur) ease-out;
}
.drawer-links a:hover{background:var(--primary-dim);border-color:rgba(53,208,192,.45);}
.drawer-links a.active{color:var(--primary);border-color:rgba(53,208,192,.5);background:rgba(53,208,192,.10);}
.drawer .btn-glow{width:100%;}

/* ============ 分类首屏 ============ */
.cat-hero{
  position:relative;
  margin-top:8px;
  padding:96px 0 88px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  filter:saturate(.85);
  z-index:0;
}
.cat-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(7,26,31,.92) 0%,rgba(7,26,31,.72) 52%,rgba(7,26,31,.62) 100%);
  z-index:1;
}
.cat-hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:20px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{opacity:.55;}
.crumb .current{color:var(--primary);}
.tag-badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;font-size:12.5px;color:var(--primary);
  background:rgba(53,208,192,.10);
  border:1px solid rgba(53,208,192,.28);
  border-radius:var(--radius-pill);
}
.cat-hero h1{margin:20px 0 18px;max-width:16em;}
.cat-hero .lede{
  max-width:720px;color:#C6D8DA;font-size:17px;line-height:1.8;margin:0 0 30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;}
.trust-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;font-size:13px;color:var(--muted);
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  backdrop-filter:blur(10px);
}
.trust-chip i{color:var(--primary);font-size:12px;}

/* ============ 时间线 ============ */
.timeline{
  position:relative;
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:20px;
  padding-top:34px;
}
.timeline::before{
  content:"";
  position:absolute;top:56px;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,transparent,rgba(53,208,192,.45) 12%,rgba(255,180,84,.45) 88%,transparent);
}
.tl-item{
  position:relative;
  padding-top:52px;
}
.tl-num{
  position:absolute;top:0;left:0;
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;
  font-size:16px;font-weight:800;color:#04201F;
  background:linear-gradient(160deg,#4CDFD0,#25A79B);
  box-shadow:0 0 0 1px rgba(53,208,192,.4),0 12px 28px -14px rgba(53,208,192,.85);
  z-index:2;
}
.tl-item h3{font-size:17px;margin-bottom:10px;}
.tl-item p{font-size:14px;color:var(--muted);line-height:1.7;margin:0 0 14px;}
.tl-tip{
  display:flex;gap:8px;align-items:flex-start;
  padding:11px 13px;
  font-size:13px;color:#C6D8DA;line-height:1.6;
  background:rgba(255,180,84,.07);
  border:1px solid rgba(255,180,84,.22);
  border-radius:var(--radius-md);
}
.tl-tip i{color:var(--accent);margin-top:3px;font-size:12px;}

/* ============ 环境准备 ============ */
.prep-grid{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:44px;
  align-items:center;
}
.prep-figure{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.prep-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.prep-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,26,31,.05),rgba(7,26,31,.55));
}
.prep-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 18px;font-size:13px;color:#D5E4E6;
  background:linear-gradient(180deg,transparent,rgba(6,20,24,.9));
  z-index:2;
}
.prep-list{display:flex;flex-direction:column;gap:16px;}
.prep-item{
  display:flex;gap:16px;
  padding:18px 20px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  backdrop-filter:blur(14px);
  transition:transform var(--dur) ease-out,border-color var(--dur) ease-out,box-shadow var(--dur) ease-out;
}
.prep-item:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-2);}
.prep-item .ico{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  color:var(--primary);font-size:15px;
  background:rgba(53,208,192,.10);
  border:1px solid rgba(53,208,192,.22);
}
.prep-item h3{font-size:16px;margin-bottom:6px;}
.prep-item p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.7;}

/* ============ 卡点排查 ============ */
.trouble-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.trouble-card{
  position:relative;
  padding:28px 26px 26px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(14px);
  overflow:hidden;
  transition:transform var(--dur) ease-out,border-color var(--dur) ease-out,box-shadow var(--dur) ease-out;
}
.trouble-card::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,208,192,.75),transparent);
  opacity:0;transition:opacity var(--dur) ease-out;
}
.trouble-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-2);}
.trouble-card:hover::before{opacity:1;}
.trouble-card .idx{
  font-size:12px;letter-spacing:.16em;color:var(--accent);margin-bottom:14px;display:block;
}
.trouble-card h3{font-size:18px;margin-bottom:12px;}
.trouble-card p{font-size:14px;color:var(--muted);margin:0 0 16px;line-height:1.75;}
.trouble-card ul{display:flex;flex-direction:column;gap:9px;}
.trouble-card li{
  position:relative;padding-left:20px;font-size:13.5px;color:#C6D8DA;line-height:1.65;
}
.trouble-card li::before{
  content:"";position:absolute;left:0;top:.55em;
  width:8px;height:8px;border-radius:3px;
  background:var(--primary-dim);
  border:1px solid var(--primary);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  background:var(--glass);
  border:1px solid var(--line) !important;
  border-radius:var(--radius-md) !important;
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(14px);
  transition:border-color var(--dur) ease-out;
}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(53,208,192,.4) !important;}
.accordion-button{
  position:relative;
  background:transparent !important;
  color:var(--text) !important;
  font-size:16px;font-weight:600;
  padding:20px 56px 20px 24px;
  box-shadow:none !important;
}
.accordion-button::after{
  content:"＋";
  font-size:18px;font-weight:400;color:var(--primary);
  background-image:none !important;
  width:auto;height:auto;
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  transition:transform var(--dur) ease-out;
}
.accordion-button:not(.collapsed)::after{content:"－";transform:translateY(-50%) rotate(0deg);}
.accordion-button:not(.collapsed){color:var(--primary) !important;}
.accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:3px;background:var(--primary);
  opacity:0;transition:opacity var(--dur) ease-out;
}
.accordion-button:not(.collapsed)::before{opacity:1;}
.accordion-body{
  padding:0 24px 22px 24px;
  color:var(--muted);font-size:14.5px;line-height:1.8;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  border-radius:24px;
  padding:56px 48px;
  overflow:hidden;
  background-image:linear-gradient(120deg,rgba(7,26,31,.9),rgba(9,38,42,.86)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border:1px solid rgba(53,208,192,.24);
  box-shadow:var(--shadow-3);
}
.cta-band::after{
  content:"";
  position:absolute;top:-40%;right:-10%;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,180,84,.22),transparent 66%);
  pointer-events:none;
}
.cta-band .inner{position:relative;z-index:2;max-width:720px;}
.cta-band h2{margin-bottom:14px;}
.cta-band p{color:#C6D8DA;font-size:15.5px;margin-bottom:28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  padding:72px 0 28px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(6,20,24,.2),rgba(5,16,19,.85));
  position:relative;z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:38px;
  padding-bottom:42px;
  border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.8;margin:0;max-width:34em;}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--text);
  margin-bottom:18px;letter-spacing:.04em;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:13.5px;color:var(--muted);}
.footer-col a:hover{color:var(--primary);}
.contact-line{
  display:flex;align-items:flex-start;gap:10px;
  font-size:13.5px;color:var(--muted);margin-bottom:12px;line-height:1.65;
}
.contact-line i{color:var(--primary);margin-top:4px;font-size:12px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:24px;
  font-size:12.5px;color:rgba(159,179,184,.78);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-links a{padding:8px 10px;font-size:13.5px;}
  .section{padding:88px 0;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav-cta{display:none;}
  .pill-nav{gap:12px;}
  .section{padding:72px 0;}
  .cat-hero{padding:72px 0 64px;}
  .timeline{grid-template-columns:1fr 1fr;gap:26px 20px;padding-top:16px;}
  .timeline::before{display:none;}
  .prep-grid{grid-template-columns:1fr;gap:32px;}
  .trouble-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:44px 32px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:58px 0;}
  .section-head{margin-bottom:36px;}
  .cat-hero{padding:56px 0 52px;}
  .cat-hero .lede{font-size:15.5px;}
  .timeline{grid-template-columns:1fr;}
  .trouble-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:36px 22px;border-radius:18px;}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%;max-width:calc(100vw - 32px);}
  .site-footer{margin-top:64px;padding:56px 0 24px;}
  .accordion-button{font-size:15px;padding:17px 50px 17px 18px;}
  .accordion-body{padding:0 18px 20px 18px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575px){
  h1{font-size:28px;}
  .brand-text em{font-size:10.5px;}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%;max-width:calc(100vw - 32px);}
  .tl-item h3{font-size:16px;}
}

/* roulang page: category2 */
:root{
  --bg:#071A1F;
  --bg-soft:#0B2429;
  --primary:#35D0C0;
  --primary-soft:rgba(53,208,192,.12);
  --primary-line:rgba(53,208,192,.38);
  --accent:#FFB454;
  --text:#E6F1F2;
  --muted:#9FB3B8;
  --border:rgba(120,200,205,.14);
  --glass:rgba(18,42,48,.55);
  --glass-strong:rgba(11,36,41,.82);
  --danger:#FF7A59;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px -16px rgba(0,0,0,.6);
  --shadow-2:0 18px 40px -20px rgba(53,208,192,.35);
  --shadow-3:0 40px 80px -32px rgba(0,0,0,.75);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(1000px 560px at 50% -12%, rgba(53,208,192,.15), rgba(7,26,31,0) 68%),
    linear-gradient(to right, rgba(120,200,205,.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(120,200,205,.045) 1px, transparent 1px);
  background-size:auto, 52px 52px, 52px 52px;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out}
a:hover{color:#5fe3d4}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.3}
h1{font-size:clamp(30px,4.2vw,46px);font-weight:800;line-height:1.25}
h3{font-size:20px;font-weight:600}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  padding:16px 0 0;
  transition:padding .2s ease-out;
}
.site-header.scrolled{padding-top:10px}
.pill-nav{
  display:flex;align-items:center;gap:18px;
  padding:10px 12px 10px 18px;
  border-radius:var(--radius-pill);
  background:rgba(9,32,37,.62);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--border);
  box-shadow:var(--shadow-1);
  transition:background .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.site-header.scrolled .pill-nav{
  background:rgba(7,26,31,.9);
  border-color:rgba(120,200,205,.22);
  box-shadow:0 18px 40px -24px rgba(0,0,0,.85);
}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand:hover{color:var(--text)}
.brand-mark{
  width:40px;height:40px;flex:none;
  display:grid;place-items:center;
  border-radius:13px;
  background:linear-gradient(140deg,rgba(53,208,192,.95),rgba(255,180,84,.75));
  color:#04211F;font-weight:800;font-size:18px;
  box-shadow:0 0 0 1px rgba(53,208,192,.4),0 8px 24px -10px rgba(53,208,192,.6);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{color:var(--text);font-size:15px;font-weight:700;letter-spacing:.02em}
.brand-text em{color:var(--muted);font-size:11px;font-style:normal;letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links li{position:relative}
.nav-links a{
  display:inline-block;position:relative;
  padding:9px 13px;border-radius:var(--radius-pill);
  color:var(--muted);font-size:14px;line-height:1.4;
  transition:color .2s ease-out,background .2s ease-out;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(53,208,192,.08)}
.nav-links a.active{color:var(--primary)}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 10px rgba(53,208,192,.9);
}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border:1px solid rgba(53,208,192,.5);
  border-radius:var(--radius-pill);
  background:linear-gradient(135deg,#40DCC9,#22B7A8);
  color:#04211F;font-size:15px;font-weight:700;
  box-shadow:0 0 0 1px rgba(53,208,192,.35),0 8px 30px -8px rgba(53,208,192,.55);
  transition:filter .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
  cursor:pointer;
}
.btn-glow:hover{color:#04211F;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,208,192,.5),0 14px 36px -10px rgba(53,208,192,.65)}
.btn-glow:active{transform:translateY(1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.nav-cta{flex:none}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-pill);
  border:1px solid var(--primary-line);
  background:rgba(53,208,192,.06);
  color:var(--primary);font-size:15px;font-weight:600;
  transition:background .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.btn-ghost:hover{background:rgba(53,208,192,.14);border-color:rgba(53,208,192,.6);color:#66E8D9;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;flex:none;
  border-radius:50%;
  border:1px solid var(--border);
  background:rgba(53,208,192,.08);
  color:var(--primary);font-size:16px;cursor:pointer;
  transition:background .2s ease-out,border-color .2s ease-out;
}
.nav-toggle:hover{background:rgba(53,208,192,.18);border-color:var(--primary-line)}

/* 抽屉 */
.drawer{
  background:rgba(7,26,31,.94) !important;
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-left:1px solid var(--border);
  width:320px !important;
  color:var(--text);
}
.drawer .offcanvas-header{
  padding:20px 22px;
  border-bottom:1px solid var(--border);
  align-items:center;
}
.drawer-close{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--border);background:transparent;
  color:var(--muted);font-size:18px;line-height:1;cursor:pointer;
  transition:color .2s ease-out,border-color .2s ease-out;
}
.drawer-close:hover{color:var(--primary);border-color:var(--primary-line)}
.drawer .offcanvas-body{padding:22px}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:26px}
.drawer-links a{
  display:block;padding:14px 16px;
  border-radius:var(--radius-md);
  color:var(--text);font-size:16px;font-weight:600;
  border:1px solid transparent;
  transition:background .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.drawer-links a:hover{background:rgba(53,208,192,.1);border-color:var(--border);color:var(--primary)}
.drawer-links a.active{color:var(--primary);background:rgba(53,208,192,.12);border-color:var(--primary-line)}
.drawer-cta{width:100%}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:780px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--primary);
  text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.sec-title{
  display:flex;align-items:center;gap:12px;
  font-size:clamp(24px,3vw,32px);font-weight:700;
}
.sec-title::before{
  content:"";flex:none;width:6px;height:26px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
.sec-desc{margin-top:16px;color:var(--muted);font-size:15px;line-height:1.8;max-width:760px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(53,208,192,.1);
  border:1px solid var(--border);
  color:var(--primary);font-size:13px;font-weight:600;line-height:1.4;
}
.chip-accent{
  background:rgba(255,180,84,.12);
  border-color:rgba(255,180,84,.3);
  color:var(--accent);
}
.glass-card{
  position:relative;overflow:hidden;
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.glass-card::after{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,208,192,.7),transparent);
  opacity:0;transition:opacity .22s ease-out;
}
.glass-card:hover{transform:translateY(-4px);border-color:var(--primary-line);box-shadow:var(--shadow-2)}
.glass-card:hover::after{opacity:1}

/* ---------- 分类首屏 ---------- */
.cat-hero-wrap{padding-top:22px}
.cat-hero{
  position:relative;overflow:hidden;
  border-radius:24px;
  border:1px solid var(--border);
  box-shadow:var(--shadow-3);
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  transform:scale(1.03);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(105deg,rgba(7,26,31,.95) 0%,rgba(7,26,31,.8) 46%,rgba(7,26,31,.56) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding:70px 56px 62px}
.crumb{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary)}
.crumb span[aria-hidden]{opacity:.5}
.crumb-current{color:var(--text)}
.cat-hero-inner h1{margin:18px 0 0;max-width:820px}
.cat-hero-sub{
  margin-top:20px;max-width:660px;
  color:#C6D6DA;font-size:16px;line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.trust-row li{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:var(--radius-pill);
  background:rgba(18,42,48,.6);
  border:1px solid var(--border);
  color:var(--muted);font-size:13px;
}
.trust-row i{color:var(--primary);font-size:12px}

/* ---------- 模块卡片墙 ---------- */
.module-wall{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.module-card{
  grid-column:span 4;
  display:flex;flex-direction:column;gap:14px;
  padding:26px;
}
.module-card--wide{
  grid-column:span 8;
  flex-direction:row;align-items:center;gap:26px;
  padding:24px;
}
.module-card--wide .module-thumb{
  flex:0 0 44%;
  border-radius:var(--radius-md);
  overflow:hidden;
  aspect-ratio:16/10;
}
.module-thumb img{width:100%;height:100%;object-fit:cover}
.module-icon{
  width:48px;height:48px;flex:none;
  display:grid;place-items:center;
  border-radius:14px;
  background:rgba(53,208,192,.12);
  border:1px solid var(--border);
  color:var(--primary);font-size:19px;
}
.module-card h3{font-size:19px}
.module-card p{color:var(--muted);font-size:14.5px;line-height:1.8}
.tick-list{display:flex;flex-direction:column;gap:6px;margin-top:2px}
.tick-list li{
  position:relative;padding-left:18px;
  color:var(--muted);font-size:14px;line-height:1.7;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:10px;
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px rgba(53,208,192,.75);
}
.module-body{display:flex;flex-direction:column;gap:12px}
.module-card--wide .module-body{flex:1}

/* ---------- 状态说明两栏 ---------- */
.split{display:grid;grid-template-columns:.9fr 1.35fr;gap:52px;align-items:start}
.split-aside h2{font-size:clamp(24px,3vw,30px);line-height:1.35}
.split-aside p{margin-top:18px;color:var(--muted);font-size:15px;line-height:1.85}
.split-aside .btn-ghost{margin-top:26px}
.status-list{display:flex;flex-direction:column;gap:14px}
.status-item{
  display:flex;gap:18px;align-items:flex-start;
  padding:22px 24px;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--border);
  border-left:3px solid rgba(53,208,192,.55);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.status-item:hover{transform:translateX(4px);border-color:var(--primary-line);border-left-color:var(--primary);box-shadow:var(--shadow-2)}
.status-num{
  flex:none;width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:rgba(255,180,84,.12);
  border:1px solid rgba(255,180,84,.28);
  color:var(--accent);font-weight:700;font-size:14px;
}
.status-item h4{font-size:16px;margin-bottom:6px}
.status-item p{color:var(--muted);font-size:14px;line-height:1.75}

/* ---------- 数据条 ---------- */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--glass);
  border:1px solid var(--border);
  box-shadow:var(--shadow-1);
}
.stat-item{
  padding:34px 26px;
  border-right:1px solid var(--border);
  position:relative;
}
.stat-item:last-child{border-right:none}
.stat-item::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(53,208,192,.55),transparent);
}
.stat-num{
  font-size:clamp(28px,3.4vw,38px);
  font-weight:800;line-height:1.1;
  color:var(--accent);
  letter-spacing:.01em;
}
.stat-num small{font-size:15px;font-weight:600;color:var(--muted);margin-left:6px;letter-spacing:0}
.stat-label{margin-top:12px;font-size:14px;color:var(--text);font-weight:600}
.stat-note{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.65}

/* ---------- FAQ ---------- */
.faq .accordion-item{
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--border);
  border-radius:14px;
  margin-bottom:14px;
  overflow:hidden;
}
.faq .accordion-button{
  --bs-accordion-btn-icon:none;
  --bs-accordion-btn-active-icon:none;
  background:transparent;
  color:var(--text);
  font-size:16px;font-weight:600;
  padding:20px 22px;
  box-shadow:none;
  border-left:3px solid transparent;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.faq .accordion-button:not(.collapsed){
  background:rgba(53,208,192,.07);
  color:var(--primary);
  border-left-color:var(--primary);
}
.faq .accordion-button:hover{background:rgba(53,208,192,.06)}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-2px}
.faq .accordion-button::after{
  content:"";flex:none;
  width:11px;height:11px;margin-left:auto;
  border-right:2px solid var(--primary);
  border-bottom:2px solid var(--primary);
  transform:rotate(45deg) translateY(-2px);
  background-image:none !important;
  transition:transform .22s ease-out;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg) translateY(-2px)}
.faq .accordion-body{
  padding:4px 22px 24px;
  color:var(--muted);font-size:14.5px;line-height:1.85;
  border-left:3px solid rgba(53,208,192,.25);
}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:24px;
  border:1px solid var(--border);
  box-shadow:var(--shadow-3);
  padding:64px 52px;
  text-align:center;
}
.cta-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(7,26,31,.88),rgba(7,26,31,.94));
}
.cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto}
.cta-inner h2{font-size:clamp(24px,3vw,32px);line-height:1.35}
.cta-inner p{margin-top:18px;color:#C6D6DA;font-size:15px;line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}
.cta-note{margin-top:20px;font-size:13px;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  border-top:1px solid rgba(53,208,192,.2);
  background:rgba(6,22,26,.7);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:42px;
}
.footer-brand p{margin-top:18px;color:var(--muted);font-size:14px;line-height:1.85;max-width:340px}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:var(--text);margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:var(--muted);font-size:14px}
.footer-col a:hover{color:var(--primary)}
.contact-line{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:14px;margin-bottom:12px}
.contact-line i{color:var(--primary);width:16px;text-align:center}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:52px;padding-top:22px;
  border-top:1px solid var(--border);
  color:var(--muted);font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links a{padding:9px 10px;font-size:13.5px}
  .split{gap:38px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .section{padding:72px 0}
  .section--tight{padding:60px 0}
  .cat-hero-inner{padding:48px 28px 44px}
  .module-card,.module-card--wide{grid-column:span 12}
  .module-card--wide{flex-direction:column;align-items:stretch}
  .module-card--wide .module-thumb{flex:none;width:100%}
  .split{grid-template-columns:1fr;gap:32px}
  .stat-band{grid-template-columns:1fr 1fr}
  .stat-item{border-right:none;border-bottom:1px solid var(--border)}
  .stat-item:nth-child(2n){border-right:none}
  .stat-item:nth-last-child(-n+2){border-bottom:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-panel{padding:48px 26px}
  .site-footer{margin-top:72px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .site-header{padding-top:12px}
  .pill-nav{padding:8px 10px 8px 12px;gap:10px}
  .brand-mark{width:36px;height:36px;border-radius:11px;font-size:16px}
  .brand-text strong{font-size:14px}
  .brand-text em{font-size:10px}
  .section{padding:56px 0}
  .cat-hero{border-radius:18px}
  .cat-hero-inner{padding:40px 20px 38px}
  .hero-actions{gap:12px}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%;max-width:calc(100vw - 32px)}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%;max-width:calc(100vw - 32px)}
  .stat-band{grid-template-columns:1fr}
  .stat-item{border-bottom:1px solid var(--border) !important}
  .stat-item:last-child{border-bottom:none !important}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .module-card{padding:22px}
  .status-item{padding:18px}
}

/* roulang page: category4 */
:root{
  --bg:#071A1F;
  --bg-2:#0A2329;
  --brand:#35D0C0;
  --brand-soft:rgba(53,208,192,.14);
  --accent:#FFB454;
  --text:#E6F1F2;
  --muted:#9FB3B8;
  --line:rgba(120,200,205,.14);
  --line-strong:rgba(53,208,192,.45);
  --glass:rgba(18,42,48,.55);
  --glass-2:rgba(11,30,35,.86);
  --danger:#FF7A59;
  --r-lg:16px;
  --r-md:12px;
  --r-pill:999px;
  --sh-1:0 8px 24px -16px rgba(0,0,0,.6);
  --sh-2:0 18px 40px -20px rgba(53,208,192,.35);
  --sh-3:0 40px 80px -32px rgba(0,0,0,.75);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sec:clamp(56px,7vw,104px);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(920px 520px at 80% -10%, rgba(53,208,192,.16), transparent 62%),
    radial-gradient(680px 420px at 4% 4%, rgba(255,180,84,.075), transparent 66%),
    linear-gradient(rgba(120,200,205,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,200,205,.04) 1px, transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
  background-attachment:fixed,fixed,scroll,scroll;
  overflow-x:hidden;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:#5FE3D5}
h1,h2,h3,h4{margin:0;letter-spacing:.01em;color:var(--text)}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
[id]{scroll-margin-top:130px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-inline:24px}
.section{padding-block:var(--sec)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.3;position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:1.05em;border-radius:4px;background:linear-gradient(180deg,var(--brand),rgba(53,208,192,.2))}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:14px;z-index:1030;padding-inline:0}
.pill-nav{
  display:flex;align-items:center;gap:22px;
  padding:10px 14px 10px 18px;
  border-radius:var(--r-pill);
  background:rgba(10,30,35,.6);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-1);
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled .pill-nav{background:rgba(8,24,29,.86);border-color:rgba(120,200,205,.22);box-shadow:0 18px 40px -26px rgba(0,0,0,.9)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand:hover{color:inherit}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  display:grid;place-items:center;
  font-size:16px;font-weight:800;color:#04211F;
  background:linear-gradient(150deg,var(--brand),#1E9C93);
  box-shadow:0 0 0 1px rgba(53,208,192,.5),0 8px 22px -10px rgba(53,208,192,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;white-space:nowrap}
.brand-text strong{font-size:15.5px;font-weight:800;color:var(--text);letter-spacing:.02em}
.brand-text em{font-size:11.5px;font-style:normal;color:var(--muted);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
.nav-links a{
  position:relative;display:block;padding:8px 13px;border-radius:var(--r-pill);
  font-size:14.5px;color:#C6D8DB;transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--brand);
  transition:width .22s var(--ease);
}
.nav-links a:hover{color:var(--text);background:rgba(53,208,192,.08)}
.nav-links a:hover::after{width:44%}
.nav-links a.active{color:var(--brand);background:rgba(53,208,192,.1)}
.nav-links a.active::after{width:56%;box-shadow:0 0 12px rgba(53,208,192,.9)}
.nav-cta{flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);background:rgba(53,208,192,.08);color:var(--text);
  font-size:16px;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:rgba(53,208,192,.18)}

/* ---------- buttons / tags ---------- */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-main{
  color:#04211F;background:linear-gradient(140deg,#4FDFCF,var(--brand));
  box-shadow:0 0 0 1px rgba(53,208,192,.5),0 8px 30px -8px rgba(53,208,192,.55);
}
.btn-main:hover{color:#04211F;filter:brightness(1.08);transform:translateY(-1px)}
.btn-main:active{transform:translateY(1px)}
.btn-ghost{
  color:var(--text);background:rgba(255,255,255,.04);
  border-color:rgba(53,208,192,.45);backdrop-filter:blur(8px);
}
.btn-ghost:hover{color:var(--text);background:rgba(53,208,192,.14);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:13.5px}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:12.5px;letter-spacing:.04em;color:var(--brand);
  background:rgba(53,208,192,.1);border:1px solid rgba(53,208,192,.3);
}
.tag.gold{color:var(--accent);background:rgba(255,180,84,.1);border-color:rgba(255,180,84,.32)}

/* ---------- page hero ---------- */
.page-hero{position:relative;margin-top:-66px;padding:150px 0 84px;overflow:hidden}
.page-hero .hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  filter:saturate(.85);
}
.page-hero .hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,26,31,.86),rgba(7,26,31,.72) 55%,var(--bg) 100%);
}
.hero-inner{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:22px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{opacity:.5}
.hero-inner h1{
  font-size:clamp(30px,4.2vw,46px);font-weight:800;line-height:1.25;
  margin:18px 0 18px;max-width:16em;
}
.hero-inner h1 .hl{color:var(--brand)}
.hero-sub{max-width:660px;font-size:16.5px;color:#BCCCCF}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 30px}
.stat-badge{
  display:flex;align-items:center;gap:12px;
  padding:12px 18px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);box-shadow:var(--sh-1);
}
.stat-badge i{color:var(--brand);font-size:16px}
.stat-badge b{font-size:18px;color:var(--accent);font-weight:800}
.stat-badge span{font-size:13px;color:var(--muted)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- toc layout ---------- */
.toc-layout{display:grid;grid-template-columns:288px minmax(0,1fr);gap:44px;align-items:start}
.toc-nav{
  position:sticky;top:104px;
  padding:24px 22px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);box-shadow:var(--sh-1);
}
.toc-title{font-size:13px;letter-spacing:.12em;color:var(--muted);margin:0 0 16px;text-transform:uppercase}
.toc-nav ul li+li{margin-top:4px}
.toc-nav ul a{
  display:block;padding:9px 12px;border-radius:10px;
  font-size:14.5px;color:#BCD0D3;border-left:2px solid transparent;
  transition:all .2s var(--ease);
}
.toc-nav ul a:hover{background:rgba(53,208,192,.08);color:var(--text)}
.toc-nav ul a.active{color:var(--brand);background:rgba(53,208,192,.12);border-left-color:var(--brand)}
.toc-tip{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);line-height:1.7;
}
.content-block{
  padding:34px 34px 30px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);box-shadow:var(--sh-1);
  margin-bottom:26px;position:relative;overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.content-block::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,208,192,.6),transparent);
  opacity:0;transition:opacity .22s var(--ease);
}
.content-block:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(53,208,192,.3)}
.content-block:hover::before{opacity:1}
.block-index{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.1em;color:var(--accent);margin-bottom:12px;
}
.content-block h2{font-size:clamp(20px,2.2vw,24px);font-weight:700;margin-bottom:14px;padding-left:14px;position:relative;line-height:1.35}
.content-block h2::before{content:"";position:absolute;left:0;top:.25em;width:4px;height:1em;border-radius:4px;background:var(--brand)}
.content-block p{color:#C4D4D7;font-size:15.5px}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;margin-top:18px}
.split img{border-radius:var(--r-md);border:1px solid var(--line);width:100%;aspect-ratio:16/10;object-fit:cover}
.check-list li{
  position:relative;padding-left:30px;margin-bottom:12px;font-size:15px;color:#C4D4D7;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:.55em;width:14px;height:14px;border-radius:5px;
  background:rgba(53,208,192,.16);border:1px solid rgba(53,208,192,.5);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:.82em;width:4px;height:7px;
  border:1.6px solid var(--brand);border-top:0;border-left:0;transform:rotate(42deg);
}
.mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:20px}
.mini-card{
  padding:20px;border-radius:var(--r-md);
  background:rgba(255,255,255,.028);border:1px solid var(--line);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.mini-card:hover{background:rgba(53,208,192,.07);border-color:rgba(53,208,192,.3)}
.mini-card h3{font-size:16px;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:9px}
.mini-card h3 i{color:var(--brand);font-size:14px}
.mini-card p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.7}
.steps{margin-top:22px;position:relative;padding-left:8px}
.steps li{
  position:relative;padding-left:58px;padding-bottom:26px;
}
.steps li:last-child{padding-bottom:0}
.steps li::before{
  content:attr(data-step);
  position:absolute;left:0;top:0;width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;font-size:14px;font-weight:800;color:var(--brand);
  background:rgba(53,208,192,.1);border:1px solid rgba(53,208,192,.42);
}
.steps li::after{
  content:"";position:absolute;left:19px;top:42px;bottom:6px;width:1px;
  background:linear-gradient(180deg,rgba(53,208,192,.5),rgba(53,208,192,.05));
}
.steps li:last-child::after{display:none}
.steps h3{font-size:16.5px;font-weight:600;margin-bottom:6px}
.steps p{margin:0;font-size:14.8px;color:var(--muted)}
.device-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:20px}
.device-card{
  padding:20px 18px;border-radius:var(--r-md);
  background:rgba(255,255,255,.028);border:1px solid var(--line);
}
.device-card i{color:var(--accent);font-size:18px;margin-bottom:12px;display:block}
.device-card h3{font-size:15.5px;font-weight:600;margin-bottom:8px}
.device-card p{font-size:14px;color:var(--muted);margin:0}
.note-strip{
  margin-top:20px;padding:16px 18px;border-radius:var(--r-md);
  background:rgba(255,180,84,.07);border:1px solid rgba(255,180,84,.24);
  font-size:14px;color:#E4CDA6;display:flex;gap:12px;align-items:flex-start;
}
.note-strip i{color:var(--accent);margin-top:.25em}

/* ---------- faq ---------- */
.faq-accordion .accordion-item{
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-md)!important;margin-bottom:14px;overflow:hidden;
  backdrop-filter:blur(14px);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-accordion .accordion-item:hover{border-color:rgba(53,208,192,.32);box-shadow:var(--sh-2)}
.faq-accordion .accordion-header{margin:0}
.faq-accordion .accordion-button{
  background:transparent;color:var(--text);
  font-size:16px;font-weight:600;line-height:1.5;
  padding:20px 22px;border:0;box-shadow:none;
  display:flex;align-items:center;gap:16px;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand);background:rgba(53,208,192,.07);
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-4px}
.faq-accordion .accordion-button::after{
  margin-left:auto;flex-shrink:0;width:24px;height:24px;
  border-radius:50%;border:1px solid rgba(53,208,192,.45);
  background-image:linear-gradient(var(--brand),var(--brand)),linear-gradient(var(--brand),var(--brand));
  background-size:11px 1.5px,1.5px 11px;
  background-position:center,center;background-repeat:no-repeat;
  transition:transform .24s var(--ease),background-size .24s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(90deg);background-size:11px 1.5px,1.5px 0}
.faq-accordion .accordion-body{
  padding:4px 22px 22px;color:#C4D4D7;font-size:15px;
  border-top:1px solid var(--line);
}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:56px 48px;border-radius:calc(var(--r-lg) + 6px);
  background:linear-gradient(135deg,rgba(53,208,192,.16),rgba(18,42,48,.6) 55%,rgba(255,180,84,.12));
  border:1px solid rgba(53,208,192,.3);
  box-shadow:var(--sh-3);
  display:grid;grid-template-columns:1.3fr auto;gap:32px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,208,192,.28),transparent 68%);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:12px;position:relative;z-index:2}
.cta-band p{color:#C4D4D7;margin:0;max-width:34em;position:relative;z-index:2}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2}

/* ---------- footer ---------- */
.site-footer{
  margin-top:20px;padding:64px 0 28px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,26,31,.5),rgba(6,20,24,.9));
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:38px}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--muted);max-width:34em;line-height:1.8}
.footer-col h4{font-size:14.5px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col li+li{margin-top:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--brand)}
.contact-line{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted);margin-bottom:12px}
.contact-line i{color:var(--brand);width:16px;text-align:center}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}

/* ---------- drawer ---------- */
.drawer-panel{
  background:var(--glass-2)!important;backdrop-filter:blur(18px);
  border-left:1px solid var(--line)!important;color:var(--text);width:320px!important;
}
.drawer-panel .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.drawer-panel .offcanvas-body{padding:22px 20px}
.drawer-close{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);
  background:rgba(53,208,192,.08);color:var(--text);
}
.drawer-links li+li{margin-top:6px}
.drawer-links a{
  display:block;padding:13px 16px;border-radius:12px;
  font-size:15.5px;color:#C6D8DB;background:rgba(255,255,255,.025);
  border:1px solid transparent;
}
.drawer-links a:hover{background:rgba(53,208,192,.1);border-color:rgba(53,208,192,.28)}
.drawer-links a.active{color:var(--brand);background:rgba(53,208,192,.14);border-color:rgba(53,208,192,.4)}
.drawer-cta{margin-top:22px}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .toc-layout{grid-template-columns:250px minmax(0,1fr);gap:32px}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .pill-nav{justify-content:space-between}
  .toc-layout{grid-template-columns:1fr;gap:26px}
  .toc-nav{position:static;top:auto}
  .split{grid-template-columns:1fr;gap:22px}
  .mini-grid{grid-template-columns:1fr}
  .device-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:40px 28px;text-align:left}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .page-hero{padding:132px 0 64px}
}
@media (max-width:575px){
  .container{padding-inline:18px}
  .page-hero{padding:124px 0 52px}
  .content-block{padding:24px 20px}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;max-width:calc(100vw - 32px)}
  .stat-badge{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .brand-text em{display:none}
}