/* roulang page: index */
:root{
  --ink-900:#05090F;
  --ink-800:#0A111D;
  --ink-700:#101A2B;
  --glass:rgba(18,28,46,.62);
  --brand-500:#37C8C3;
  --brand-600:#22A8A4;
  --glow-400:#FFB65C;
  --glow-500:#F59E2E;
  --urgent:#FF6B57;
  --success:#4ADE80;
  --text-hi:#EAF1FA;
  --text-mid:#A9B7CC;
  --text-low:#6C7C93;
  --line:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.12);
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-glow:0 0 0 1px rgba(255,182,92,.45),0 8px 28px -6px rgba(255,182,92,.45);
  --shadow-glow-hover:0 0 0 1px rgba(255,182,92,.6),0 10px 34px -4px rgba(255,182,92,.6);
  --side-w:240px;
  --side-mini:76px;
  --maxw:1240px;
  --pad-x:clamp(16px,4vw,40px);
  --sp-section:106px;
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-mid);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease}
a:hover,a:focus{color:var(--glow-400)}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:var(--pad-x);padding-right:var(--pad-x)}

/* ---------- App shell ---------- */
.app-shell{
  margin-left:var(--side-w);
  min-height:100vh;
  border-left:1px solid var(--line);
  position:relative;
}
.app-sidebar{
  position:fixed;top:0;left:0;width:var(--side-w);height:100vh;
  background:var(--ink-800);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 14px 20px;
  z-index:60;
}
.side-logo{height:72px;display:flex;align-items:center;gap:10px;padding:0 8px;flex:none}
.logo-mark{
  width:34px;height:34px;flex:none;border-radius:11px;
  background:linear-gradient(135deg,var(--brand-500),var(--glow-400));
  display:grid;place-items:center;color:#04161b;font-weight:800;font-size:15px;letter-spacing:-.03em;
  box-shadow:0 0 0 1px rgba(255,255,255,.12) inset;
}
.logo-text{font-size:16px;font-weight:800;color:var(--text-hi);letter-spacing:-.02em;white-space:nowrap}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:12px;overflow-y:auto;overflow-x:visible}
.side-nav::-webkit-scrollbar{width:4px}
.side-nav::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:4px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:44px;padding:0 12px;border-radius:10px;
  color:var(--text-mid);font-size:14.5px;font-weight:500;
  transition:background .18s ease,color .18s ease;
}
.nav-item i{width:20px;text-align:center;font-size:15px;color:var(--text-low);transition:color .18s ease}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--text-hi)}
.nav-item:hover i{color:var(--brand-500)}
.nav-item.is-active{background:rgba(55,200,195,.12);color:var(--text-hi)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand-500);
}
.nav-item.is-active i{color:var(--brand-500)}
.side-divider{height:1px;background:var(--line);margin:16px 4px}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.side-promo{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:14px;
}
.side-promo p{font-size:13px;line-height:1.6;color:var(--text-mid);margin-bottom:10px}
.side-contact{font-size:12.5px;line-height:1.7;color:var(--text-low);padding:0 4px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;text-align:center;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,background .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.btn-glow{
  background:linear-gradient(135deg,#FFB65C,#F59E2E);
  color:#1A1004;font-weight:700;
  box-shadow:var(--shadow-glow);
}
.btn-glow:hover{color:#1A1004;transform:translateY(-1px);filter:brightness(1.08);box-shadow:var(--shadow-glow-hover)}
.btn-glow:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,182,92,.5),0 4px 14px -6px rgba(255,182,92,.5)}
.btn-ghost{
  background:transparent;color:var(--text-hi);border:1px solid var(--line-strong);
}
.btn-ghost:hover{color:var(--text-hi);border-color:var(--brand-500);background:rgba(55,200,195,.12)}
.btn-block{width:100%}
.btn-lg{min-height:52px;padding:0 28px;font-size:16px}
.btn-sm{min-height:38px;padding:0 16px;font-size:13.5px}
.btn-xs{min-height:34px;padding:0 14px;font-size:13px;border-radius:8px}

/* ---------- Shared blocks ---------- */
.section{padding:var(--sp-section) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:44px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;color:var(--text-hi);letter-spacing:-.01em}
.section-sub{font-size:15px;line-height:1.8;color:var(--text-mid);margin-top:10px;max-width:660px}
.eyebrow{font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--brand-500);text-transform:uppercase}
.link-arrow{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--brand-500);min-height:44px;
}
.link-arrow::after{content:"";position:absolute;left:0;bottom:8px;height:1px;width:0;background:currentColor;transition:width .28s ease}
.link-arrow:hover::after{width:calc(100% - 20px)}
.link-arrow i{transition:transform .25s ease}
.link-arrow:hover i{transform:translateX(5px)}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-500);border:1px solid rgba(55,200,195,.42);background:rgba(55,200,195,.08);
}
.pill-glow{color:var(--glow-400);border-color:rgba(255,182,92,.45);background:rgba(255,182,92,.1)}
.glass-card{
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  padding:26px;
}
.progress{height:8px;border-radius:var(--r-pill);background:var(--ink-800);border:1px solid var(--line);overflow:hidden}
.progress-fill{height:100%;width:78%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--brand-500),var(--glow-400))}
.countdown{display:flex;align-items:center;gap:8px;justify-content:center;margin:20px 0 12px}
.cd-cell{flex:1;background:var(--ink-800);border:1px solid var(--line);border-radius:12px;padding:10px 4px;text-align:center}
.cd-cell b{display:block;font-size:40px;font-weight:800;line-height:1.08;color:var(--text-hi);font-variant-numeric:tabular-nums}
.cd-cell i{display:block;font-style:normal;font-size:12px;color:var(--text-low);margin-top:4px}
.cd-colon{color:var(--text-low);font-size:22px;font-weight:700;line-height:1}
.countdown.is-urgent .cd-cell b{color:var(--urgent)}
.countdown.is-urgent{animation:breathe 1.6s ease-in-out infinite}
@keyframes breathe{0%,100%{transform:scale(1)}50%{transform:scale(1.03)}}
@media (prefers-reduced-motion:reduce){.countdown.is-urgent{animation:none}}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:min(88vh,820px);
  display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,9,15,.92),rgba(5,9,15,.55))}
.hero::after{
  content:"";position:absolute;top:-14%;right:-8%;width:60%;height:78%;
  background:radial-gradient(circle,rgba(255,182,92,.08),transparent 70%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;width:100%;padding-top:clamp(52px,9vh,104px);padding-bottom:clamp(52px,9vh,104px)}
.hero-copy{padding-bottom:24px}
.hero h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.18;font-weight:800;
  letter-spacing:-.02em;color:var(--text-hi);margin:18px 0 16px;
}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-mid);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:0;margin-top:42px;padding-top:26px;border-top:1px solid var(--line)}
.metric{position:relative;padding:0 28px 0 0;margin-right:28px}
.metric+.metric{padding-left:28px}
.metric+.metric::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--line)}
.metric .num{display:block;font-size:24px;font-weight:700;color:var(--text-hi);line-height:1.3;font-variant-numeric:tabular-nums}
.metric .lab{font-size:13px;color:var(--text-low)}
.hero-card{margin-top:8px}
.card-eyebrow{font-size:13px;font-weight:600;color:var(--text-mid);letter-spacing:.02em;margin-bottom:12px}
.progress-note{font-size:13px;color:var(--text-low);margin-top:12px}
.progress-note b{color:var(--glow-400);font-variant-numeric:tabular-nums}

/* ---------- Trust bar ---------- */
.trust{
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-item{position:relative;display:flex;align-items:center;gap:14px;padding:22px 24px}
.trust-item+.trust-item::before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:1px;background:var(--line)}
.trust-item i{font-size:21px;color:var(--brand-500);width:24px;text-align:center}
.trust-num{display:block;font-size:20px;font-weight:800;color:var(--text-hi);line-height:1.3;font-variant-numeric:tabular-nums}
.trust-lab{font-size:13px;color:var(--text-mid);line-height:1.5}

/* ---------- Tier ladder ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:end;position:relative}
.tier-grid::before{
  content:"";position:absolute;left:0;right:0;bottom:150px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(55,200,195,.38),rgba(255,182,92,.5),transparent);
}
.tier{
  position:relative;z-index:1;display:flex;flex-direction:column;
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease;
}
.tier:nth-child(1){min-height:322px}
.tier:nth-child(2){min-height:382px}
.tier:nth-child(3){min-height:440px;transform:translateY(-24px);border-color:rgba(255,182,92,.5)}
.tier:nth-child(3):hover{transform:translateY(-28px)}
.tier:hover{border-color:var(--line-strong)}
.tier-no{font-size:56px;font-weight:800;line-height:1;color:rgba(255,255,255,.06);font-variant-numeric:tabular-nums}
.tier h3{font-size:19px;line-height:1.45;font-weight:600;color:var(--text-hi);margin-top:12px}
.tier-amount{font-size:32px;font-weight:800;color:var(--glow-400);line-height:1.3;font-variant-numeric:tabular-nums;margin-top:6px}
.tier-for{font-size:13.5px;color:var(--text-low);margin-top:4px}
.tier-points{margin:18px 0;display:flex;flex-direction:column;gap:10px}
.tier-points li{position:relative;padding-left:20px;font-size:14.5px;line-height:1.7;color:var(--text-mid)}
.tier-points li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--brand-500);opacity:.85}
.tier .link-arrow{margin-top:auto}
.tier-badge{position:absolute;top:18px;right:18px}

/* ---------- Compare ---------- */
.cmp{background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.cmp-row{display:grid;grid-template-columns:200px repeat(3,1fr);border-bottom:1px solid var(--line);transition:background .2s ease}
.cmp-row:last-child{border-bottom:none}
.cmp-row:hover{background:rgba(255,255,255,.03)}
.cmp-head{background:var(--ink-800)}
.cmp-head:hover{background:var(--ink-800)}
.cmp-cell{padding:15px 16px;border-left:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--text-mid);text-align:center}
.cmp-cell:first-child{border-left:none;justify-content:flex-start;text-align:left}
.cmp-cell.is-rec{background:rgba(255,182,92,.05);box-shadow:inset 1px 0 0 rgba(255,182,92,.32),inset -1px 0 0 rgba(255,182,92,.32)}
.cmp-plan{flex-direction:column;gap:6px;padding:20px 16px}
.cmp-plan .pname{font-size:15px;font-weight:700;color:var(--text-hi)}
.cmp-plan .price{font-size:22px;font-weight:800;color:var(--glow-400);font-variant-numeric:tabular-nums;line-height:1.2}
.cmp-plan .price small{font-size:12px;font-weight:500;color:var(--text-low);margin-left:2px}
.cmp-val i.fa-check{color:var(--brand-500);font-size:15px}
.cmp-val i.fa-minus{color:var(--text-low);font-size:15px}
.cmp-mobile{display:none}
.kv{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
.kv:last-child{border-bottom:none}
.kv span{color:var(--text-mid)}
.kv b{color:var(--text-hi);font-weight:600}

/* ---------- Limited band ---------- */
.band{
  position:relative;
  border-radius:20px;border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(55,200,195,.10),rgba(255,182,92,.10));
  padding:34px 32px;min-height:220px;overflow:hidden;
  display:flex;align-items:center;
  box-shadow:var(--shadow-card);
}
.band::after{content:"";position:absolute;top:-40%;right:-6%;width:46%;height:150%;background:radial-gradient(circle,rgba(255,182,92,.09),transparent 70%);pointer-events:none}
.band-grid{position:relative;z-index:2;width:100%}
.band h2{font-size:clamp(21px,2.2vw,27px);font-weight:700;color:var(--text-hi);line-height:1.35}
.band p{font-size:14.5px;color:var(--text-mid);margin-top:10px;max-width:520px}
.band-cd{display:flex;gap:10px;align-items:center;margin-top:22px}
.band-cd .cd-cell{background:rgba(5,9,15,.55);padding:8px 10px;min-width:78px;flex:0 0 auto}
.band-cd .cd-cell b{font-size:44px}
.band-cd .cd-colon{font-size:26px}
.band-side .progress{margin-bottom:12px}
.band-side .progress-note{margin:0 0 18px}

/* ---------- News ---------- */
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .28s ease,border-color .28s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(55,200,195,.35)}
.news-thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(135deg,rgba(55,200,195,.4),rgba(255,182,92,.4));
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1}
.news-cat{align-self:flex-start;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--brand-500);border:1px solid rgba(55,200,195,.4);border-radius:var(--r-pill);padding:3px 10px;background:rgba(55,200,195,.07)}
.news-title{font-size:17px;font-weight:600;color:var(--text-hi);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-sum{font-size:14px;line-height:1.7;color:var(--text-mid);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-low)}
.news-foot i{color:var(--brand-500);transition:transform .25s ease}
.news-card:hover .news-foot i{transform:translateX(4px)}
.news-col{margin-bottom:24px}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
}
.empty-state i{font-size:40px;color:var(--text-low);display:block;margin-bottom:14px}
.empty-state p{font-size:15px;color:var(--text-mid);margin-bottom:18px}

/* ---------- Form ---------- */
.form-card{padding:28px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;color:var(--text-mid);margin-bottom:8px}
.field label .req{color:var(--glow-400)}
.field input,.field select,.field textarea{
  width:100%;background:var(--ink-700);border:1px solid var(--line);
  border-radius:var(--r-btn);color:var(--text-hi);
  padding:12px 14px;min-height:48px;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
  -webkit-appearance:none;appearance:none;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.75}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--text-low) 50%),linear-gradient(135deg,var(--text-low) 50%,transparent 50%);background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field select option{background:var(--ink-800);color:var(--text-hi)}
.field input::placeholder,.field textarea::placeholder{color:var(--text-low)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(55,200,195,.18);
}
.field .err{display:none;font-size:13px;color:var(--urgent);margin-top:6px}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--urgent)}
.field.has-error .err{display:block}
.field.has-error{animation:shake .2s ease}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
@media (prefers-reduced-motion:reduce){.field.has-error{animation:none}}
.counter{display:block;text-align:right;font-size:12.5px;color:var(--text-low);margin-top:6px;font-variant-numeric:tabular-nums}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;line-height:1.7;color:var(--text-mid)}
.check input{width:18px;height:18px;min-height:18px;margin-top:4px;flex:none;accent-color:var(--brand-500)}
.form-success{
  display:none;margin-bottom:18px;padding:12px 16px;border-radius:var(--r-sm);
  background:rgba(74,222,128,.1);border:1px solid rgba(74,222,128,.35);
  color:var(--success);font-size:14px;
}
.form-success.is-on{display:block}
.point-list{display:flex;flex-direction:column;gap:14px;margin:24px 0 28px}
.point-list li{position:relative;padding-left:24px;font-size:15px;line-height:1.75;color:var(--text-mid)}
.point-list li i{position:absolute;left:0;top:4px;color:var(--brand-500);font-size:14px}
.contact-line{font-size:14px;color:var(--text-low);line-height:1.9;border-top:1px solid var(--line);padding-top:18px}
.contact-line b{color:var(--text-hi);font-weight:600}

/* ---------- FAQ ---------- */
.accordion{border:none;background:transparent;margin:0}
.accordion-item{background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-sm);margin-bottom:12px;overflow:hidden;transition:border-color .22s ease}
.accordion-item:hover{border-color:var(--line-strong)}
.accordion-item.is-active{border-color:rgba(55,200,195,.35);box-shadow:inset 2px 0 0 var(--brand-500)}
.accordion-title{
  border:none;background:transparent;color:var(--text-hi);
  font-size:16px;font-weight:600;line-height:1.5;
  padding:16px 52px 16px 18px;position:relative;
  transition:color .2s ease,background .2s ease;
}
.accordion-title:hover,.accordion-title:focus{background:rgba(255,255,255,.03);color:var(--brand-500)}
.accordion-title::before{
  content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  color:var(--text-low);font-size:14px;transition:transform .25s ease,color .25s ease;margin:0;
}
.accordion-item.is-active>.accordion-title::before{transform:translateY(-50%) rotate(180deg);color:var(--brand-500)}
.accordion-content{
  border:none;background:transparent;
  padding:0 18px 18px;border-top:1px solid var(--line);
  color:var(--text-mid);font-size:15px;line-height:1.8;
}
.accordion-content p{padding-top:14px}

/* ---------- Footer ---------- */
.app-footer{background:#03060B;border-top:1px solid var(--line);padding-top:60px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-desc{font-size:14px;line-height:1.8;color:var(--text-mid);max-width:340px}
.foot-title{font-size:14px;font-weight:600;color:var(--text-hi);margin-bottom:16px}
.foot-list li{margin-bottom:8px}
.foot-list a,.foot-list span{font-size:14px;color:var(--text-mid);line-height:1.9}
.foot-list a:hover{color:var(--brand-500)}
.qr-box{
  width:112px;height:112px;border-radius:var(--r-sm);border:1px solid var(--line);
  display:grid;place-items:center;background:var(--ink-800);color:var(--text-low);
}
.qr-box i{font-size:30px}
.foot-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 calc(20px + env(safe-area-inset-bottom));
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-low);
}
.foot-bottom span{line-height:1.8}

/* ---------- Back to top ---------- */
.back-top{
  position:fixed;right:22px;bottom:calc(24px + env(safe-area-inset-bottom));
  width:44px;height:44px;border-radius:50%;
  background:var(--glass);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);color:var(--text-hi);
  display:grid;place-items:center;cursor:pointer;
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,border-color .2s ease,color .2s ease;
  z-index:90;
}
.back-top.is-visible{opacity:1;pointer-events:auto;transform:none}
.back-top:hover{border-color:var(--brand-500);color:var(--brand-500)}

/* ---------- Mobile top bar + drawer ---------- */
.mobile-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
  align-items:center;justify-content:space-between;padding:0 16px;
  background:transparent;transition:background .25s ease,backdrop-filter .25s ease;
}
.mobile-topbar.is-solid{background:rgba(10,17,29,.88);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.mobile-topbar .logo-text{font-size:15px}
.hamburger{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:rgba(10,17,29,.6);color:var(--text-hi);display:grid;place-items:center;cursor:pointer;
}
.hamburger:hover{border-color:var(--brand-500);color:var(--brand-500)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,12,.72);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:99;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.app-drawer{
  position:fixed;top:0;left:0;width:280px;height:100%;
  background:var(--ink-800);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:0 14px 24px;overflow-y:auto;
  transform:translateX(-102%);transition:transform .28s ease;z-index:100;
}
.app-drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:64px;flex:none}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--text-mid);cursor:pointer}
.drawer-close:hover{border-color:var(--brand-500);color:var(--brand-500)}

/* ---------- Reveal ---------- */
.reveal{
  background:var(--ink-800);border:1px solid var(--line);
  border-radius:var(--r-card);color:var(--text-mid);
  box-shadow:var(--shadow-card);padding:30px 26px;text-align:center;
}
.reveal .close-button{color:var(--text-low);top:14px;right:16px}
.reveal .close-button:hover{color:var(--brand-500)}
.thanks-icon{font-size:44px;color:var(--success);margin-bottom:16px}
.reveal h3{font-size:20px;font-weight:700;color:var(--text-hi);margin-bottom:10px}
.reveal p{font-size:15px;line-height:1.8;margin-bottom:22px}
.reveal-overlay{background:rgba(3,6,12,.78)}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-item:nth-child(3)::before{display:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (min-width:992px) and (max-width:1199px){
  .app-sidebar{width:var(--side-mini);padding:0 10px 18px}
  .app-shell{margin-left:var(--side-mini)}
  .logo-text,.nav-item span,.side-promo,.side-contact{display:none}
  .side-logo{justify-content:center;padding:0}
  .nav-item{justify-content:center;padding:0}
  .nav-item[data-title]:hover::after{
    content:attr(data-title);position:absolute;left:calc(100% + 14px);top:50%;transform:translateY(-50%);
    background:rgba(10,17,29,.96);border:1px solid var(--line);color:var(--text-hi);
    font-size:13px;font-weight:500;padding:7px 11px;border-radius:12px;white-space:nowrap;
    z-index:80;box-shadow:var(--shadow-card);
  }
  .tier-grid::before{bottom:130px}
}
@media (max-width:991px){
  .app-sidebar{display:none}
  .app-shell{margin-left:0;border-left:none;padding-top:60px}
  .mobile-topbar{display:flex}
  .tier-grid{grid-template-columns:1fr;gap:20px}
  .tier-grid::before{display:none}
  .tier{min-height:0 !important;transform:none !important;border-left:2px solid rgba(55,200,195,.35)}
  .tier:nth-child(3){border-left-color:var(--glow-400)}
  .cmp-row{grid-template-columns:160px repeat(3,1fr)}
  .section{padding:72px 0}
  .band{padding:28px 22px;min-height:0}
  .band-cd .cd-cell b{font-size:34px}
}
@media (max-width:767px){
  .hero{min-height:auto}
  .hero-actions .btn{width:100%}
  .hero-metrics{gap:16px 0}
  .metric{padding-right:20px;margin-right:20px}
  .metric+.metric{padding-left:20px}
  .cmp{display:none}
  .cmp-mobile{display:block}
  .news-thumb{aspect-ratio:16/9}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .section{padding:60px 0}
  .section-head{margin-bottom:32px}
  .form-card{padding:20px}
  .glass-card{padding:20px}
}
@media (max-width:575px){
  .cd-cell b{font-size:28px}
  .band-cd .cd-cell b{font-size:28px}
  .band-cd .cd-cell{min-width:62px;padding:6px 8px}
  .trust-grid{grid-template-columns:1fr}
  .trust-item+.trust-item::before{left:24px;right:24px;top:0;bottom:auto;width:auto;height:1px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .back-top{right:14px;bottom:calc(16px + env(safe-area-inset-bottom))}
}

/* roulang page: article */
:root{
  --ink-900:#05090F; --ink-800:#0A111D; --ink-700:#101A2B;
  --glass:rgba(18,28,46,.62);
  --brand-500:#37C8C3; --brand-600:#22A8A4;
  --glow-400:#FFB65C; --glow-500:#F59E2E;
  --urgent:#FF6B57; --success:#4ADE80;
  --text-hi:#EAF1FA; --text-mid:#A9B7CC; --text-low:#6C7C93;
  --line:rgba(255,255,255,.07);
  --r-card:16px; --r-btn:10px; --r-input:10px;
  --sp-xs:8px; --sp-sm:12px; --sp-md:20px; --sp-lg:28px;
  --sp-sec:clamp(56px,7vw,104px);
  --side-w:240px; --side-mini:76px; --top-h:60px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"PingFang SC",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--ink-900);color:var(--text-hi);
  font-family:var(--font);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
  background-image:radial-gradient(900px 520px at 78% -8%,rgba(55,200,195,.07),transparent 65%);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--text-mid);text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease)}
a:hover{color:var(--brand-500)}
p{margin:0 0 1.05em}
h1,h2,h3,h4{margin:0;color:var(--text-hi);letter-spacing:-.01em}
h1{font-size:clamp(28px,3.4vw,40px);line-height:1.18;font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700}
h3{font-size:19px;line-height:1.45;font-weight:600}
ul,ol{margin:0 0 1.05em;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:16px}
button{cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:clamp(16px,4vw,40px);padding-right:clamp(16px,4vw,40px)}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ===== 侧栏 ===== */
.side-panel{
  position:fixed;left:0;top:0;z-index:60;width:var(--side-w);height:100vh;
  display:flex;flex-direction:column;padding:0 14px 18px;
  background:linear-gradient(180deg,rgba(10,17,29,.98),rgba(5,9,15,.98));
  border-right:1px solid var(--line);
}
.side-logo{
  height:72px;display:flex;align-items:center;gap:10px;padding:0 6px;flex:0 0 auto;
  border-bottom:1px solid var(--line);margin-bottom:14px;
}
.logo-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 auto;
  display:grid;place-items:center;font-size:14px;font-weight:800;color:#1A1004;
  background:linear-gradient(135deg,var(--glow-400),var(--glow-500));
  box-shadow:0 0 0 1px rgba(255,182,92,.35),0 6px 18px -8px rgba(255,182,92,.6);
}
.logo-text{font-size:16px;font-weight:700;color:var(--text-hi);letter-spacing:.01em;white-space:nowrap}
.side-nav{display:flex;flex-direction:column;gap:4px;flex:0 0 auto}
.side-nav .nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:44px;padding:9px 12px;border-radius:10px;
  color:var(--text-mid);font-size:14px;font-weight:500;
  border:1px solid transparent;transition:all .22s var(--ease);
}
.side-nav .nav-item i{width:18px;text-align:center;font-size:14px;color:var(--text-low);transition:color .22s var(--ease)}
.side-nav .nav-item:hover{background:rgba(255,255,255,.04);color:var(--text-hi)}
.side-nav .nav-item:hover i{color:var(--brand-500)}
.side-nav .nav-item.is-active{background:rgba(55,200,195,.12);color:var(--text-hi)}
.side-nav .nav-item.is-active::before{
  content:"";position:absolute;left:-14px;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--brand-500);
}
.side-nav .nav-item.is-active i{color:var(--brand-500)}
.side-sep{height:1px;background:var(--line);margin:16px 6px}
.side-card{
  padding:14px;border-radius:14px;background:var(--glass);
  border:1px solid rgba(255,255,255,.08);backdrop-filter:blur(14px);
}
.side-card-t{font-size:13px;line-height:1.6;color:var(--text-mid);margin:0 0 10px}
.side-contact{margin-top:auto;padding:12px 6px 0;border-top:1px solid var(--line)}
.side-contact p{margin:0 0 4px;font-size:12px;color:var(--text-low);line-height:1.7}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:all .22s var(--ease);
}
.btn-glow{
  color:#1A1004;font-weight:700;
  background:linear-gradient(135deg,var(--glow-400),var(--glow-500));
  box-shadow:0 0 0 1px rgba(255,182,92,.45),0 8px 28px -6px rgba(255,182,92,.45);
}
.btn-glow:hover{
  color:#1A1004;transform:translateY(-1px);filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(255,182,92,.55),0 0 34px -4px rgba(255,182,92,.6);
}
.btn-glow:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,182,92,.4),0 4px 14px -6px rgba(255,182,92,.4)}
.btn-ghost{
  color:var(--text-hi);background:transparent;border:1px solid var(--line);
}
.btn-ghost:hover{color:var(--text-hi);border-color:var(--brand-500);background:rgba(55,200,195,.12)}
.btn-block{width:100%}
.btn-sm{min-height:38px;padding:0 16px;font-size:13px;border-radius:9px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-500);
}
.link-arrow i{font-size:11px;transition:transform .22s var(--ease)}
.link-arrow:hover i{transform:translateX(6px)}

/* ===== 主区域 ===== */
.app-main{margin-left:var(--side-w);min-height:100vh;border-left:1px solid var(--line)}
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:70;height:var(--top-h);
  display:none;align-items:center;justify-content:space-between;padding:0 16px;
  background:transparent;transition:background .25s var(--ease),backdrop-filter .25s var(--ease);
}
.topbar.is-solid{background:rgba(10,17,29,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.topbar .logo-text{font-size:15px}
.burger{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-hi);background:rgba(255,255,255,.03);
}
.burger:hover{border-color:var(--brand-500);color:var(--brand-500)}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(3,6,12,.72);backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;z-index:90;width:280px;max-width:86vw;height:100vh;
  transform:translateX(-102%);transition:transform .28s var(--ease);
  background:linear-gradient(180deg,#0A111D,#05090F);border-right:1px solid var(--line);
  padding:0 14px 24px;display:flex;flex-direction:column;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{
  height:var(--top-h);display:flex;align-items:center;justify-content:space-between;
  border-bottom:1px solid var(--line);margin-bottom:14px;
}
.drawer-close{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;border:1px solid var(--line);color:var(--text-mid)}
.drawer-close:hover{color:var(--brand-500);border-color:var(--brand-500)}
.drawer .side-nav{margin-bottom:6px}

/* ===== 面包屑 ===== */
.crumb-bar{border-bottom:1px solid var(--line);background:rgba(10,17,29,.5);margin-top:var(--top-h)}
@media (min-width:992px){.crumb-bar{margin-top:0}}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:16px 0;font-size:13px;color:var(--text-mid)}
.crumb a{color:var(--text-mid)}
.crumb a:hover{color:var(--brand-500)}
.crumb i{font-size:9px;color:var(--text-low)}
.crumb .is-now{color:var(--text-low);max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== 文章头部 ===== */
.art-hero{
  position:relative;overflow:hidden;padding:clamp(38px,5vw,64px) 0 clamp(30px,4vw,46px);
  background-image:
    linear-gradient(180deg,rgba(5,9,15,.92),rgba(5,9,15,.62)),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.art-hero::after{
  content:"";position:absolute;top:-160px;right:-120px;width:60%;height:420px;pointer-events:none;
  background:radial-gradient(closest-side,rgba(255,182,92,.08),transparent 72%);
}
.art-hero .container{position:relative;z-index:2}
.art-badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1;
  color:var(--brand-500);border:1px solid rgba(55,200,195,.35);background:rgba(55,200,195,.08);
  margin-bottom:16px;
}
.art-title{max-width:900px;word-break:break-word}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;
  font-size:13px;color:var(--text-mid);
}
.meta-row .m-item{display:inline-flex;align-items:center;gap:6px}
.meta-row .m-item i{font-size:12px;color:var(--text-low)}
.meta-row .divider{width:1px;height:14px;background:var(--line)}
.share-group{margin-left:auto;display:flex;gap:10px}
.icon-btn{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-mid);background:rgba(255,255,255,.02);
  transition:all .22s var(--ease);
}
.icon-btn:hover{color:var(--brand-500);border-color:var(--brand-500);background:rgba(55,200,195,.1)}

/* ===== 正文布局 ===== */
.art-wrap{padding:clamp(40px,5vw,68px) 0 var(--sp-sec)}
.layout-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:40px}
@media (min-width:1200px){.layout-grid{grid-template-columns:minmax(0,1fr) 300px}}

.article-body{
  max-width:720px;font-size:17px;line-height:1.9;color:var(--text-mid);
}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  position:relative;margin:48px 0 16px;padding-left:16px;font-size:clamp(21px,2.2vw,27px);
  color:var(--text-hi);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;
  background:var(--brand-500);
}
.article-body h3{margin:34px 0 12px;color:var(--text-hi)}
.article-body h4{margin:26px 0 10px;font-size:16px;color:var(--text-hi)}
.article-body strong{color:var(--text-hi);font-weight:600}
.article-body a{color:var(--brand-500);border-bottom:1px solid rgba(55,200,195,.45)}
.article-body a:hover{color:var(--glow-400);border-bottom-color:rgba(255,182,92,.6)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding:0}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:.6em}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--brand-500);transform:rotate(45deg);
}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.1em;
  font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--brand-500);
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--glow-400);
  background:rgba(255,255,255,.03);border-radius:0 12px 12px 0;color:var(--text-mid);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:26px auto;box-shadow:var(--shadow-card)}
.article-body figure{margin:26px 0}
.article-body figcaption,.article-body .img-cap{
  font-size:13px;color:var(--text-low);text-align:center;margin-top:10px;
}
.article-body .wp-caption-text{font-size:13px;color:var(--text-low);text-align:center}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;background:transparent;
}
.article-body .table-scroll{overflow-x:auto;margin:26px 0;border:1px solid var(--line);border-radius:12px}
.article-body .table-scroll table{margin:0;min-width:520px}
.article-body th{
  background:var(--ink-800);color:var(--text-hi);font-weight:600;text-align:left;
  padding:12px 16px;border-bottom:1px solid var(--line);font-size:14px;
}
.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);color:var(--text-mid)}
.article-body tr:last-child td{border-bottom:0}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em;
  padding:2px 6px;border-radius:6px;border:1px solid var(--line);background:rgba(255,255,255,.1);
  color:var(--text-hi);
}
.article-body pre{
  background:var(--ink-800);border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;overflow-x:auto;margin:24px 0;font-size:14px;line-height:1.7;
}
.article-body pre code{border:0;background:none;padding:0}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0}
.article-body .callout,.article-body blockquote.callout{
  margin:24px 0;padding:16px 20px;border-radius:12px;
  background:var(--glass);border:1px solid rgba(255,255,255,.08);
  border-left:3px solid var(--brand-500);backdrop-filter:blur(14px);
  color:var(--text-mid);font-size:15px;
}
.article-body .callout.is-gold{border-left-color:var(--glow-400)}

/* ===== 空态 ===== */
.empty-box{
  max-width:720px;padding:48px 28px;border-radius:var(--r-card);text-align:center;
  background:var(--ink-700);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.empty-box i{font-size:40px;color:var(--text-low);display:block;margin-bottom:16px}
.empty-box h2{font-size:22px;margin-bottom:10px}
.empty-box p{color:var(--text-mid);font-size:15px;margin-bottom:22px}

/* ===== 文末区 ===== */
.art-foot{max-width:720px;margin-top:44px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:22px}
.tag-row .t-label{font-size:13px;color:var(--text-low);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:999px;
  font-size:12px;letter-spacing:.03em;color:var(--text-mid);
  border:1px solid var(--line);background:rgba(255,255,255,.03);transition:all .22s var(--ease);
}
.tag:hover{color:var(--brand-500);border-color:rgba(55,200,195,.5);background:rgba(55,200,195,.1)}
.source-bar{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  padding:14px 18px;border-radius:12px;background:var(--glass);
  border:1px solid rgba(255,255,255,.08);backdrop-filter:blur(14px);
  font-size:13px;color:var(--text-low);margin-bottom:26px;
}
.art-nav{display:grid;grid-template-columns:1fr;gap:16px;margin-bottom:26px}
@media (min-width:768px){.art-nav{grid-template-columns:1fr 1fr}}
.nav-card{
  padding:16px 18px;border-radius:14px;background:var(--ink-700);
  border:1px solid var(--line);transition:all .22s var(--ease);
}
.nav-card:hover{transform:translateY(-3px);border-color:rgba(55,200,195,.4)}
.nav-card span{display:block;font-size:12px;color:var(--text-low);margin-bottom:6px}
.nav-card strong{font-size:15px;font-weight:600;color:var(--text-hi)}

/* ===== 相关推荐 ===== */
.related{padding-top:clamp(36px,4vw,56px);border-top:1px solid var(--line);margin-top:12px}
.sec-head{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;justify-content:space-between;margin-bottom:26px}
.sec-head h2{font-size:clamp(20px,2.2vw,26px)}
.sec-head p{margin:6px 0 0;font-size:14px;color:var(--text-low)}
.card-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.post-card{
  display:flex;flex-direction:column;background:var(--ink-700);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.16)}
.post-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#101A2B,#0A111D)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.post-card:hover .post-cover img{transform:scale(1.04)}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.post-body h3{font-size:16px;line-height:1.5;margin:10px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body p{font-size:14px;line-height:1.7;color:var(--text-mid);margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-bottom{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-low)}
.post-bottom i{font-size:12px;color:var(--brand-500)}

/* ===== 侧栏卡片 ===== */
.side-col{display:flex;flex-direction:column;gap:22px}
@media (min-width:1200px){.side-col{position:sticky;top:28px;align-self:start}}
.panel{
  background:var(--glass);border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-card);padding:20px;backdrop-filter:blur(14px);
}
.panel-title{font-size:15px;font-weight:600;color:var(--text-hi);margin:0 0 14px;display:flex;align-items:center;gap:8px}
.panel-title i{color:var(--brand-500);font-size:13px}
.panel-list li{border-bottom:1px solid var(--line)}
.panel-list li:last-child{border-bottom:0}
.panel-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;font-size:14px;color:var(--text-mid)}
.panel-list a:hover{color:var(--brand-500)}
.panel-list i{font-size:10px;color:var(--text-low)}
.mini-count{display:flex;gap:8px;margin:14px 0 16px}
.mini-count span{
  flex:1;text-align:center;background:var(--ink-800);border:1px solid var(--line);
  border-radius:10px;padding:8px 4px;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:20px;font-weight:800;color:var(--text-hi);
}
.mini-count em{display:block;font-size:11px;font-style:normal;color:var(--text-low);font-weight:500;margin-top:2px}
.progress{height:8px;border-radius:999px;background:var(--ink-800);overflow:hidden;margin:6px 0 12px}
.progress span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-500),var(--glow-400))}
.tiny{font-size:12px;color:var(--text-low);line-height:1.7}

/* ===== CTA 条带 ===== */
.cta-band{
  margin:0 0 var(--sp-sec);
}
.cta-inner{
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
  padding:clamp(24px,3.4vw,34px);border-radius:var(--r-card);
  background:linear-gradient(120deg,rgba(55,200,195,.10),rgba(255,182,92,.10));
  border:1px solid rgba(255,255,255,.08);backdrop-filter:blur(14px);
}
@media (min-width:900px){.cta-inner{grid-template-columns:7fr 5fr}}
.cta-inner h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:10px}
.cta-inner p{margin:0;font-size:14px;color:var(--text-mid)}
.cta-right{display:flex;flex-direction:column;gap:14px}

/* ===== 页脚 ===== */
.app-footer{
  margin-left:var(--side-w);border-top:1px solid var(--line);
  background:linear-gradient(180deg,#05090F,#03060C);
  padding-top:clamp(44px,5vw,64px);padding-bottom:calc(24px + env(safe-area-inset-bottom));
}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-desc{font-size:14px;color:var(--text-mid);max-width:340px;margin:0}
.foot-title{font-size:14px;font-weight:600;color:var(--text-hi);margin:0 0 14px}
.foot-list li{margin-bottom:10px}
.foot-list a,.foot-list span{font-size:14px;color:var(--text-mid)}
.foot-list a:hover{color:var(--brand-500)}
.qr-box{
  width:96px;height:96px;border-radius:14px;display:grid;place-items:center;
  border:1px dashed var(--line);background:rgba(255,255,255,.03);
  color:var(--text-low);font-size:30px;
}
.foot-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--text-low);
}
.to-top{
  position:fixed;right:20px;bottom:calc(20px + env(safe-area-inset-bottom));z-index:75;
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  background:var(--glass);border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(14px);
  color:var(--text-mid);opacity:0;visibility:hidden;transition:all .25s var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible}
.to-top:hover{color:var(--brand-500);border-color:var(--brand-500);transform:translateY(-2px)}

/* ===== 折叠态侧栏（992-1199） ===== */
@media (min-width:992px) and (max-width:1199px){
  :root{--side-w:var(--side-mini)}
  .side-panel{width:var(--side-mini);padding:0 10px 18px;align-items:center}
  .side-logo{justify-content:center;padding:0}
  .logo-text{display:none}
  .side-nav{width:100%}
  .side-nav .nav-item{justify-content:center;padding:10px 0}
  .side-nav .nav-item span{display:none}
  .side-nav .nav-item.is-active::before{left:-10px}
  .side-nav .nav-item:hover::after{
    content:attr(data-title);position:absolute;left:calc(100% + 12px);top:50%;transform:translateY(-50%);
    padding:6px 12px;border-radius:12px;background:var(--glass);border:1px solid rgba(255,255,255,.1);
    backdrop-filter:blur(14px);color:var(--text-hi);font-size:12px;white-space:nowrap;z-index:99;
  }
  .side-card{width:100%;padding:10px 8px;text-align:center}
  .side-card-t{font-size:12px}
  .side-card .btn{padding:0 8px;font-size:12px;width:100%}
  .side-contact{display:none}
  .foot-brand .logo-text{display:block}
}
@media (max-width:991px){
  :root{--side-w:0px}
  .side-panel{transform:translateX(-102%);transition:transform .28s var(--ease)}
  .side-panel.is-open{transform:translateX(0)}
  .topbar{display:flex}
  .app-main{margin-left:0;border-left:0}
  .app-footer{margin-left:0}
  .to-top{bottom:calc(16px + env(safe-area-inset-bottom))}
}
@media (max-width:767px){
  .article-body{font-size:16px}
  .meta-row{gap:10px}
  .share-group{margin-left:0;width:100%}
  .cta-right .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --ink-900:#05090F;
  --ink-800:#0A111D;
  --ink-700:#101A2B;
  --glass:rgba(18,28,46,.62);
  --brand-500:#37C8C3;
  --brand-600:#22A8A4;
  --glow-400:#FFB65C;
  --glow-500:#F59E2E;
  --urgent:#FF6B57;
  --success:#4ADE80;
  --text-hi:#EAF1FA;
  --text-mid:#A9B7CC;
  --text-low:#6C7C93;
  --line:rgba(255,255,255,.07);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-input:10px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:20px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:72px;
  --side-w:240px;
  --font-sans:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:Inter,-apple-system,system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover,a:focus{color:var(--glow-400)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--text-hi);font-weight:700}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 clamp(16px,4vw,40px)}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- App shell ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,12,.72);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:60;
}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
.app-sidebar{
  position:fixed;top:0;left:0;width:var(--side-w);height:100vh;
  background:var(--ink-800);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 14px 18px;
  z-index:70;
  transition:width .25s ease,transform .28s ease;
}
.logo{
  display:flex;align-items:center;gap:10px;
  height:72px;flex:0 0 72px;
  color:var(--text-hi);
  font-weight:700;font-size:16px;letter-spacing:.01em;
  border-bottom:1px solid var(--line);
  margin-bottom:16px;
}
.logo:hover{color:var(--text-hi)}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;color:#1A1004;
  background:linear-gradient(135deg,var(--glow-400),var(--glow-500));
  box-shadow:0 0 0 1px rgba(255,182,92,.45),0 8px 20px -8px rgba(255,182,92,.5);
}
.logo-text{white-space:nowrap;overflow:hidden}
.side-nav{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:11px;
  min-height:44px;padding:10px 12px;
  border-radius:10px;
  color:var(--text-mid);font-size:14.5px;
  transition:background-color .2s ease,color .2s ease;
}
.nav-item i{width:18px;text-align:center;font-size:15px;color:var(--text-low);transition:color .2s ease}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--text-hi)}
.nav-item:hover i{color:var(--brand-500)}
.nav-item.is-active{background:rgba(55,200,195,.12);color:var(--text-hi);font-weight:600}
.nav-item.is-active i{color:var(--brand-500)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:0 3px 3px 0;background:var(--brand-500);
}
.side-divider{height:1px;background:var(--line);margin:20px 0}
.side-mini{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:14px;
  padding:14px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.side-mini-tip{margin:0 0 6px;font-size:12.5px;color:var(--text-mid)}
.side-mini-tip i{color:var(--glow-400);margin-right:5px}
.side-mini-count{margin:0 0 12px;font-size:15px;font-weight:700;color:var(--text-hi);font-family:var(--font-num);font-variant-numeric:tabular-nums}
.side-contact{margin-top:auto;padding-top:18px;font-size:12.5px;line-height:1.75;color:var(--text-low)}
.side-contact p{margin:0}
.side-close{display:none}

.app-main{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
.mobile-header{display:none}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-glow{
  background:linear-gradient(135deg,#FFB65C,#F59E2E);
  color:#1A1004;
  box-shadow:0 0 0 1px rgba(255,182,92,.45),0 8px 28px -6px rgba(255,182,92,.45);
}
.btn-glow:hover,.btn-glow:focus{
  color:#1A1004;transform:translateY(-1px);filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(255,182,92,.5),0 10px 34px -6px rgba(255,182,92,.6);
}
.btn-glow:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,182,92,.4),0 4px 14px -6px rgba(255,182,92,.45)}
.btn-ghost{
  background:transparent;color:var(--text-hi);
  border-color:var(--line);
}
.btn-ghost:hover,.btn-ghost:focus{
  color:var(--text-hi);border-color:var(--brand-500);background:rgba(55,200,195,.12);
}
.btn-sm{min-height:38px;padding:8px 16px;font-size:13.5px;width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14.5px;font-weight:600;color:var(--brand-500);
}
.link-arrow i{font-size:12px;transition:transform .22s ease}
.link-arrow:hover i{transform:translateX(8px)}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1;
  border:1px solid rgba(55,200,195,.42);
  color:var(--brand-500);background:rgba(55,200,195,.08);
}
.badge-gold{border-color:rgba(255,182,92,.45);color:var(--glow-400);background:rgba(255,182,92,.09)}
.badge-urgent{border-color:rgba(255,107,87,.45);color:var(--urgent);background:rgba(255,107,87,.09)}

/* ---------- Breadcrumb ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:18px}
.crumb a{color:var(--text-mid)}
.crumb a:hover{color:var(--brand-500)}
.crumb i{font-size:9px;color:var(--text-low)}
.crumb .current{color:var(--text-low)}

/* ---------- Category hero ---------- */
.cat-hero{
  position:relative;
  min-height:clamp(320px,36vh,420px);
  display:flex;align-items:center;
  padding:56px 0;
  background-image:linear-gradient(180deg,rgba(5,9,15,.92),rgba(5,9,15,.55)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;top:-30%;right:-10%;width:60%;height:150%;
  background:radial-gradient(circle at center,rgba(255,182,92,.08),transparent 68%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.18;font-weight:800;letter-spacing:-.02em;
  margin:0 0 16px;max-width:760px;
}
.cat-hero .hero-sub{max-width:640px;color:var(--text-mid);font-size:16.5px;margin:0 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-glass{
  position:absolute;right:clamp(16px,4vw,40px);bottom:-34px;
  display:flex;gap:26px;
  padding:16px 22px;border-radius:14px;
  background:var(--glass);border:1px solid rgba(255,255,255,.08);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  z-index:3;
}
.hero-glass .cell-num{font-size:22px;font-weight:800;color:var(--glow-400);line-height:1.2;font-family:var(--font-num);font-variant-numeric:tabular-nums}
.hero-glass .cell-label{font-size:12.5px;color:var(--text-mid);margin-top:2px}

/* ---------- Sections ---------- */
.section{padding:clamp(56px,7vw,96px) 0}
.section-tight{padding:clamp(44px,5vw,72px) 0}
.sec-head{max-width:720px;margin-bottom:clamp(28px,3.4vw,48px)}
.sec-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;margin-bottom:12px}
.sec-head p{color:var(--text-mid);font-size:15.5px;margin:0}
.sec-tag{display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--brand-500);margin-bottom:10px;font-weight:600}

/* ---------- Zigzag ---------- */
.zig{
  display:grid;grid-template-columns:repeat(12,1fr);
  gap:clamp(24px,3vw,44px);align-items:center;
}
.zig + .zig{margin-top:clamp(48px,6vw,72px)}
.zig-media{grid-column:span 6;position:relative}
.zig-body{grid-column:span 6}
.zig-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.zig-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-card);
  background:linear-gradient(180deg,rgba(5,9,15,.05),rgba(5,9,15,.42));
  pointer-events:none;
}
.zig-step{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;margin-bottom:16px;
  background:var(--ink-700);border:1px solid var(--line);
  color:var(--brand-500);font-weight:800;font-size:14px;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
}
.zig-body h2{font-size:clamp(21px,2.1vw,27px);line-height:1.35;margin-bottom:14px}
.zig-body p{color:var(--text-mid);font-size:15.5px}
.zig-points{margin:20px 0 22px;display:flex;flex-direction:column;gap:11px}
.zig-points li{display:flex;gap:10px;font-size:14.5px;color:var(--text-mid);line-height:1.7}
.zig-points i{color:var(--brand-500);font-size:12px;margin-top:6px}
.zig--rev .zig-media{order:2}
.zig--rev .zig-body{order:1}

/* ---------- Data strip ---------- */
.strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
}
.strip-cell{
  background:rgba(10,17,29,.86);
  padding:22px 24px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.strip-cell i{color:var(--brand-500);font-size:18px;margin-bottom:10px;display:block}
.strip-cell .v{font-size:23px;font-weight:800;color:var(--text-hi);line-height:1.2;font-family:var(--font-num);font-variant-numeric:tabular-nums}
.strip-cell .k{font-size:13px;color:var(--text-mid);margin-top:4px}

/* ---------- Progress ---------- */
.progress-line{
  height:8px;border-radius:999px;background:var(--ink-700);overflow:hidden;
  border:1px solid var(--line);
}
.progress-line span{
  display:block;height:100%;width:72%;
  background:linear-gradient(90deg,var(--brand-500),var(--glow-400));
  border-radius:999px;
}

/* ---------- Countdown strip ---------- */
.cta-band{
  position:relative;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(55,200,195,.10),rgba(255,182,92,.10));
  padding:clamp(26px,3.6vw,42px);
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;top:-60%;right:-10%;width:50%;height:180%;
  background:radial-gradient(circle at center,rgba(255,182,92,.10),transparent 70%);
  pointer-events:none;
}
.cta-band-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(12,1fr);
  gap:clamp(22px,3vw,40px);align-items:center;
}
.cta-band-left{grid-column:span 7}
.cta-band-right{grid-column:span 5;display:flex;flex-direction:column;gap:16px}
.countdown{display:flex;align-items:center;gap:10px;margin:6px 0 14px}
.cd-cell{
  min-width:66px;padding:10px 6px;text-align:center;
  background:var(--ink-800);border:1px solid var(--line);border-radius:12px;
}
.cd-cell .n{font-size:34px;font-weight:800;line-height:1;font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--text-hi)}
.cd-cell .u{font-size:11.5px;color:var(--text-low);margin-top:6px}
.cd-sep{color:var(--text-low);font-size:24px;font-weight:700}
.countdown.is-urgent .cd-cell .n{color:var(--urgent)}
.countdown.is-urgent{animation:breathe 1.6s ease-in-out infinite}
@keyframes breathe{0%,100%{transform:scale(1)}50%{transform:scale(1.03)}}
@media (prefers-reduced-motion:reduce){
  .countdown.is-urgent{animation:none}
  *{transition-duration:.01ms !important}
}

/* ---------- Flow steps ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,2vw,24px);position:relative}
.flow-item{
  position:relative;
  background:var(--ink-700);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease;
}
.flow-item:hover{transform:translateY(-4px);border-color:rgba(55,200,195,.35)}
.flow-node{
  width:34px;height:34px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  background:var(--ink-800);border:1px solid rgba(55,200,195,.45);
  color:var(--brand-500);font-weight:800;font-size:13.5px;margin-bottom:14px;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
}
.flow-item h3{font-size:17px;margin-bottom:8px}
.flow-item p{font-size:14px;color:var(--text-mid);margin:0}
.flow-meta{margin-top:12px;font-size:12.5px;color:var(--text-low)}
.flow-meta i{color:var(--glow-400);margin-right:5px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.accordion{border:none;background:transparent;margin:0}
.accordion .accordion-item{
  background:var(--ink-700);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
}
.accordion .accordion-item:last-child{margin-bottom:0}
.accordion .accordion-title{
  position:relative;
  padding:18px 54px 18px 20px;
  font-size:16px;font-weight:600;color:var(--text-hi);
  border:none;background:transparent;
  transition:color .2s ease,background-color .2s ease;
  line-height:1.6;
}
.accordion .accordion-title:hover,.accordion .accordion-title:focus{
  color:var(--brand-500);background:rgba(255,255,255,.03);
}
.accordion .accordion-title::before{
  content:"\f078";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:12px;color:var(--text-low);transition:transform .25s ease;
  margin:0;order:0;
}
.accordion .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(180deg);color:var(--brand-500)}
.accordion .accordion-item.is-active>.accordion-title{color:var(--brand-500)}
.accordion .accordion-content{
  padding:0 20px 20px 20px;
  border:none;border-top:1px solid var(--line);
  background:transparent;
  color:var(--text-mid);font-size:15px;line-height:1.8;
  position:relative;
}
.accordion .accordion-content::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--brand-500);
}
.accordion .accordion-content p{margin:14px 0 0}

/* ---------- Footer ---------- */
.app-footer{
  margin-top:auto;
  background:#03060B;
  border-top:1px solid var(--line);
  padding:clamp(48px,5vw,72px) 0 calc(24px + env(safe-area-inset-bottom));
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:clamp(22px,3vw,40px)}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand .logo-mark{width:30px;height:30px;flex:0 0 30px;border-radius:10px;font-size:13px}
.foot-brand .logo-text{font-weight:700;font-size:16px;color:var(--text-hi)}
.foot-desc{font-size:13.5px;color:var(--text-low);line-height:1.8;max-width:320px;margin:0}
.foot-title{font-size:14px;font-weight:600;color:var(--text-hi);margin:0 0 14px}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-list a,.foot-list span{font-size:14px;color:var(--text-mid);line-height:1.6}
.foot-list a:hover{color:var(--brand-500)}
.qr-box{
  width:78px;height:78px;border-radius:12px;
  background:var(--ink-700);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-low);font-size:26px;
}
.foot-bottom{
  margin-top:clamp(32px,4vw,52px);padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--text-low);
}

/* ---------- Back to top ---------- */
.to-top{
  position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-hi);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,border-color .2s ease;
  z-index:80;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:var(--brand-500);color:var(--brand-500)}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  :root{--side-w:76px}
  .app-sidebar{padding:0 10px 16px}
  .logo{justify-content:center;padding:0}
  .logo-text{display:none}
  .nav-item{justify-content:center;padding:10px 0}
  .nav-item span{display:none}
  .nav-item::after{
    content:attr(data-title);
    position:absolute;left:calc(100% + 12px);top:50%;transform:translateY(-50%);
    background:var(--glass);border:1px solid var(--line);border-radius:12px;
    padding:7px 12px;font-size:13px;color:var(--text-hi);white-space:nowrap;
    opacity:0;visibility:hidden;transition:opacity .18s ease,visibility .18s ease;
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    pointer-events:none;z-index:90;
  }
  .nav-item:hover::after,.nav-item:focus::after{opacity:1;visibility:visible}
  .side-mini,.side-contact,.side-divider{display:none}
}
@media (max-width:991px){
  :root{--side-w:280px}
  .app-sidebar{
    transform:translateX(-100%);
    width:280px;padding:0 14px 18px;
    box-shadow:0 0 60px rgba(0,0,0,.7);
  }
  body.drawer-open .app-sidebar{transform:translateX(0)}
  .logo{justify-content:flex-start;padding:0}
  .logo-text{display:inline}
  .nav-item{justify-content:flex-start;padding:10px 12px}
  .nav-item span{display:inline}
  .nav-item::after{display:none}
  .side-mini,.side-contact,.side-divider{display:block}
  .side-close{
    display:flex;align-items:center;justify-content:center;
    position:absolute;top:18px;right:12px;width:40px;height:40px;
    background:transparent;border:1px solid var(--line);border-radius:10px;
    color:var(--text-mid);font-size:15px;
  }
  .side-close:hover{border-color:var(--brand-500);color:var(--brand-500)}
  .app-main{margin-left:0;padding-top:60px}
  .mobile-header{
    display:flex;align-items:center;justify-content:space-between;
    position:fixed;top:0;left:0;right:0;height:60px;padding:0 clamp(16px,4vw,24px);
    background:transparent;border-bottom:1px solid transparent;
    transition:background-color .25s ease,border-color .25s ease,backdrop-filter .25s ease;
    z-index:65;
  }
  .mobile-header.scrolled{
    background:rgba(10,17,29,.88);
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .mobile-header .logo{height:auto;flex:0 0 auto;border:none;margin:0}
  .burger{
    width:44px;height:44px;display:flex;align-items:center;justify-content:center;
    background:transparent;border:1px solid var(--line);border-radius:10px;color:var(--text-hi);font-size:17px;
  }
  .burger:hover{border-color:var(--brand-500);color:var(--brand-500)}
  .zig-media,.zig-body{grid-column:span 12}
  .zig--rev .zig-media{order:1}
  .zig--rev .zig-body{order:2}
  .strip{grid-template-columns:repeat(2,1fr)}
  .cta-band-left,.cta-band-right{grid-column:span 12}
  .flow{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
  .hero-glass{position:static;margin-top:28px;display:inline-flex}
  .cat-hero{padding:44px 0 52px}
}
@media (max-width:767px){
  .cat-hero{min-height:280px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cd-cell{min-width:56px}
  .cd-cell .n{font-size:28px}
  .flow{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575px){
  .strip{grid-template-columns:1fr}
  .hero-glass{gap:18px;padding:14px 16px;width:100%}
  .zig-body h2{font-size:21px}
}

/* roulang page: category3 */
:root{
  --ink-900:#05090F;
  --ink-800:#0A111D;
  --ink-700:#101A2B;
  --glass:rgba(18,28,46,.62);
  --brand-500:#37C8C3;
  --brand-600:#22A8A4;
  --glow-400:#FFB65C;
  --glow-500:#F59E2E;
  --urgent:#FF6B57;
  --success:#4ADE80;
  --text-hi:#EAF1FA;
  --text-mid:#A9B7CC;
  --text-low:#6C7C93;
  --line:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.12);
  --r-card:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --nav-w:240px;
  --nav-w-sm:76px;
  --pad-x:clamp(16px,4vw,40px);
  --gap-card:22px;
  --sect-y:clamp(56px,7vw,104px);
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --mono:"Inter",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-mid);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease}
a:hover,a:focus{color:var(--glow-400)}
h1,h2,h3,h4,h5,h6{font-family:var(--font);color:var(--text-hi);margin:0 0 14px;font-weight:700}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.18;letter-spacing:-.02em;font-weight:800}
h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700}
h3{font-size:19px;line-height:1.45;font-weight:600}
p{margin:0 0 1.05em;color:var(--text-mid)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
::selection{background:rgba(55,200,195,.28);color:var(--text-hi)}

/* ---------- Foundation 默认组件覆盖 ---------- */
body,html{background:var(--ink-900)}
.button{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;min-height:44px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid var(--line);background:transparent;background-color:transparent;
  color:var(--text-hi);transition:all .22s ease;
}
.button:hover,.button:focus{background-color:rgba(55,200,195,.12);border-color:var(--brand-500);color:var(--text-hi)}
.button:active{transform:translateY(1px)}
.button.btn-glow{
  background:linear-gradient(135deg,#FFB65C,#F59E2E);
  background-color:transparent;
  color:#1A1004;border:1px solid transparent;font-weight:700;
  box-shadow:0 0 0 1px rgba(255,182,92,.45),0 8px 28px -6px rgba(255,182,92,.45);
}
.button.btn-glow:hover,.button.btn-glow:focus{
  background:linear-gradient(135deg,#FFB65C,#F59E2E);
  color:#1A1004;transform:translateY(-1px);filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(255,182,92,.5),0 10px 34px -6px rgba(255,182,92,.6);
}
.button.btn-glow:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,182,92,.4),0 4px 14px -6px rgba(255,182,92,.4)}
.button.btn-ghost{background-color:transparent;border:1px solid var(--line);color:var(--text-hi)}
.button.btn-ghost:hover{background-color:rgba(55,200,195,.12);border-color:var(--brand-500);color:var(--text-hi)}
.progress{height:8px;border-radius:999px;background:rgba(255,255,255,.08);border:0;margin:0;overflow:hidden}
.progress .progress-meter{background:linear-gradient(90deg,var(--brand-500),var(--glow-400));border-radius:999px}
.callout{
  background:var(--glass);border:1px solid rgba(255,255,255,.08);
  border-left:3px solid var(--brand-500);border-radius:12px;
  color:var(--text-mid);padding:18px 20px;
}
.callout.gold{border-left-color:var(--glow-400)}
.top-bar{background:var(--ink-800);color:var(--text-hi);border-bottom:1px solid var(--line);padding:0}
.top-bar,.top-bar ul{background-color:var(--ink-800)}
.grid-x{margin-left:-11px;margin-right:-11px}
.grid-x>.cell{padding-left:11px;padding-right:11px}

/* ---------- 容器与骨架 ---------- */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 var(--pad-x)}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--ink-700);color:var(--text-hi);padding:10px 16px;border-radius:0 0 10px 0;
}
.skip-link:focus{left:0;color:var(--text-hi)}

/* ---------- 左侧导航 ---------- */
.side-nav-wrap{
  position:fixed;left:0;top:0;bottom:0;width:var(--nav-w);
  background:var(--ink-800);border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:60;
}
.side-head{
  height:72px;display:flex;align-items:center;gap:12px;
  padding:0 20px;border-bottom:1px solid var(--line);flex:0 0 auto;
}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  display:grid;place-items:center;font-weight:800;font-size:16px;color:#1A1004;
  background:linear-gradient(135deg,var(--brand-500),var(--glow-400));
  box-shadow:0 6px 20px -8px rgba(55,200,195,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{color:var(--text-hi);font-size:15px;font-weight:700;letter-spacing:.02em}
.brand-text em{font-style:normal;color:var(--text-low);font-size:11px;letter-spacing:.18em}
.side-body{flex:1 1 auto;overflow-y:auto;padding:14px 0 12px}
.side-label{font-size:11px;color:var(--text-low);letter-spacing:.16em;padding:6px 20px 10px;text-transform:uppercase}
.side-nav{display:block}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  margin:2px 10px;padding:12px 14px;border-radius:10px;
  color:var(--text-mid);font-size:15px;min-height:44px;
  transition:background .2s ease,color .2s ease;
}
.nav-item i{width:20px;text-align:center;font-size:15px;color:var(--text-low);transition:color .2s ease}
.nav-item:hover,.nav-item:focus{background:rgba(255,255,255,.04);color:var(--text-hi)}
.nav-item:hover i,.nav-item:focus i{color:var(--brand-500)}
.nav-item.is-active{background:rgba(55,200,195,.12);color:var(--text-hi)}
.nav-item.is-active i{color:var(--brand-500)}
.nav-item.is-active::before{
  content:"";position:absolute;left:-10px;top:11px;bottom:11px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand-500);
}
.side-divider{height:1px;background:var(--line);margin:14px 20px}
.side-card{
  margin:0 14px;padding:16px;border-radius:14px;
  background:var(--glass);border:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.side-card p{margin:0 0 12px;font-size:13px;line-height:1.65;color:var(--text-mid)}
.side-card .mini-num{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--glow-400);font-weight:800;font-size:20px}
.side-card .button{width:100%;padding:10px 12px;font-size:13px;min-height:40px}
.side-foot{
  flex:0 0 auto;padding:14px 20px calc(16px + env(safe-area-inset-bottom));
  border-top:1px solid var(--line);font-size:12px;color:var(--text-low);line-height:1.8;
}
.side-foot span{display:block}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
  display:none;align-items:center;justify-content:space-between;
  padding:0 16px;background:transparent;transition:background .25s ease,backdrop-filter .25s ease;
}
.mobile-bar.is-solid{
  background:rgba(10,17,29,.88);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.mobile-bar .brand-text strong{font-size:14px}
.hamburger{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:rgba(16,26,43,.7);color:var(--text-hi);font-size:16px;
  display:grid;place-items:center;cursor:pointer;transition:border-color .2s ease;
}
.hamburger:hover{border-color:var(--brand-500);color:var(--brand-500)}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;z-index:95;
  background:var(--ink-800);border-right:1px solid var(--line);
  transform:translateX(-100%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:0 0 calc(18px + env(safe-area-inset-bottom));
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:transparent;color:var(--text-mid);cursor:pointer;font-size:15px;
  display:grid;place-items:center;
}
.drawer-close:hover{color:var(--brand-500);border-color:var(--brand-500)}
.drawer .side-body{padding-top:10px}
.drawer-mask{
  position:fixed;inset:0;z-index:90;background:rgba(3,6,12,.72);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ---------- 主内容偏移 ---------- */
.page-main{margin-left:var(--nav-w);min-height:60vh}
.app-footer{margin-left:var(--nav-w)}

/* ---------- 分类窄幅 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:400px;padding:64px 0 48px;
  display:flex;align-items:flex-end;
  background-color:var(--ink-900);
  background-image:linear-gradient(180deg,rgba(5,9,15,.92),rgba(5,9,15,.55)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;top:-40%;right:-8%;width:60%;height:150%;
  background:radial-gradient(circle at center,rgba(255,182,92,.08),transparent 70%);
  pointer-events:none;
}
.cat-hero-inner{
  position:relative;z-index:2;width:100%;
  display:grid;grid-template-columns:minmax(0,1fr) auto;
  gap:36px;align-items:end;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:18px}
.breadcrumb a{color:var(--text-mid)}
.breadcrumb a:hover{color:var(--brand-500)}
.breadcrumb span{color:var(--text-low)}
.breadcrumb em{font-style:normal;color:var(--text-low)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-500);border:1px solid rgba(55,200,195,.4);
  background:rgba(55,200,195,.08);margin-bottom:18px;
}
.cat-hero h1{max-width:760px;margin-bottom:16px}
.hero-sub{font-size:16px;color:var(--text-mid);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-mini{
  min-width:212px;padding:20px;border-radius:14px;
  background:var(--glass);border:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.hero-mini .mini-row{display:flex;align-items:baseline;gap:8px;padding:10px 0}
.hero-mini .mini-row+.mini-row{border-top:1px solid var(--line)}
.hero-mini strong{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:800;color:var(--glow-400);line-height:1;
}
.hero-mini span{font-size:13px;color:var(--text-mid)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sect-y) 0}
.section.tight{padding:clamp(40px,5vw,68px) 0}
.section-head{max-width:720px;margin-bottom:clamp(28px,4vw,48px)}
.section-head .kicker{
  display:inline-block;font-size:12px;letter-spacing:.14em;font-weight:600;
  color:var(--brand-500);margin-bottom:10px;
}
.section-head p{margin:0;font-size:15px;color:var(--text-mid)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 卡片矩阵 ---------- */
.matrix{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap-card)}
.m-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--ink-700);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease;
}
.m-card:hover{transform:translateY(-4px);border-color:rgba(55,200,195,.35)}
.m-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  color:var(--brand-500);background:rgba(55,200,195,.08);
  border:1px solid rgba(55,200,195,.35);font-size:17px;margin-bottom:18px;
}
.m-step{
  position:absolute;right:22px;top:18px;
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:38px;font-weight:800;color:rgba(255,255,255,.06);line-height:1;
}
.m-card h3{margin-bottom:10px}
.m-card>p{font-size:14.5px;color:var(--text-mid);margin-bottom:16px}
.m-list{display:flex;flex-direction:column;gap:9px;margin-bottom:20px}
.m-list li{position:relative;padding-left:20px;font-size:14px;line-height:1.7;color:var(--text-mid)}
.m-list li::before{
  content:"";position:absolute;left:2px;top:9px;width:7px;height:7px;border-radius:2px;
  background:var(--brand-500);transform:rotate(45deg);
}
.m-card .link-arrow{margin-top:auto}
.m-card.wide{
  grid-column:1 / -1;
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:28px;align-items:center;padding:28px;
}
.m-card.wide .m-icon{margin-bottom:14px}
.wide-media{border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--ink-800)}
.wide-media img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- 文字链 ---------- */
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--brand-500);
}
.link-arrow i{font-size:11px;transition:transform .22s ease}
.link-arrow:hover{color:var(--glow-400)}
.link-arrow:hover i{transform:translateX(6px)}

/* ---------- 准备清单（三格） ---------- */
.prep-grid{margin-top:4px}
.prep-card{
  height:100%;background:var(--ink-800);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;transition:border-color .22s ease,transform .22s ease;
}
.prep-card:hover{border-color:rgba(55,200,195,.3);transform:translateY(-3px)}
.prep-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.prep-head i{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(255,182,92,.1);color:var(--glow-400);font-size:15px;
  border:1px solid rgba(255,182,92,.3);
}
.prep-head h3{margin:0;font-size:17px}
.prep-card p{font-size:14px;margin-bottom:14px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--text-mid);border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.tag.is-brand{color:var(--brand-500);border-color:rgba(55,200,195,.4);background:rgba(55,200,195,.08)}
.tag.is-gold{color:var(--glow-400);border-color:rgba(255,182,92,.4);background:rgba(255,182,92,.08)}

/* ---------- 卡点列表 ---------- */
.trap-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px}
.trap-item{
  display:flex;gap:16px;padding:22px 0;border-bottom:1px solid var(--line);
}
.trap-item i{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:rgba(255,107,87,.08);color:var(--urgent);border:1px solid rgba(255,107,87,.28);
  font-size:13px;margin-top:3px;
}
.trap-item h3{font-size:16px;margin-bottom:6px}
.trap-item p{font-size:14px;margin:0}

/* ---------- FAQ 手风琴 ---------- */
.accordion{border:0;background:transparent;margin:0}
.accordion .accordion-item{
  border:1px solid var(--line);border-radius:12px;background:var(--ink-800);
  margin-bottom:12px;overflow:hidden;transition:border-color .22s ease;
}
.accordion .accordion-item.is-active{border-color:rgba(55,200,195,.32)}
.accordion .accordion-title{
  position:relative;border:0;background:transparent;
  color:var(--text-hi);font-size:16px;font-weight:600;
  padding:17px 54px 17px 20px;line-height:1.5;
}
.accordion .accordion-title:hover,.accordion .accordion-title:focus{
  background:rgba(255,255,255,.03);color:var(--text-hi);
}
.accordion .accordion-title::before{
  content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  margin:0;color:var(--text-low);font-size:14px;
  transition:transform .25s ease,color .25s ease;
}
.accordion .accordion-item.is-active .accordion-title::before{
  transform:translateY(-50%) rotate(180deg);color:var(--brand-500);
}
.accordion .accordion-content{
  border:0;background:transparent;color:var(--text-mid);
  padding:0 22px 20px 22px;font-size:15px;line-height:1.8;
}
.accordion .accordion-item.is-active .accordion-content{
  border-left:2px solid var(--brand-500);padding-left:18px;
}

/* ---------- CTA 条带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:20px;
  background:linear-gradient(120deg,rgba(55,200,195,.10),rgba(255,182,92,.10));
  padding:clamp(26px,3.4vw,40px);
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:32px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;top:-60%;right:-10%;width:50%;height:200%;
  background:radial-gradient(circle at center,rgba(255,182,92,.08),transparent 70%);
  pointer-events:none;
}
.cta-band>*{position:relative;z-index:2}
.countdown{display:flex;align-items:center;gap:10px;margin:6px 0 14px}
.countdown .unit{
  min-width:76px;padding:10px 8px;border-radius:12px;background:var(--ink-800);
  border:1px solid var(--line);text-align:center;
}
.countdown .unit strong{
  display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:44px;font-weight:800;line-height:1;color:var(--text-hi);
}
.countdown .unit span{display:block;font-size:12px;color:var(--text-low);margin-top:6px}
.countdown .colon{font-family:var(--mono);font-size:30px;font-weight:800;color:var(--text-low);line-height:1}
.cta-band.is-urgent .countdown .unit strong{color:var(--urgent)}
.cta-band.is-urgent .countdown{animation:breathe 1.6s ease-in-out infinite}
@keyframes breathe{0%,100%{transform:scale(1)}50%{transform:scale(1.03)}}
@media (prefers-reduced-motion:reduce){
  .cta-band.is-urgent .countdown{animation:none}
  html{scroll-behavior:auto}
  *{transition-duration:.01ms !important}
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:10px}
.cta-band p{font-size:14.5px;margin-bottom:0}
.cta-right{display:flex;flex-direction:column;gap:16px}
.cta-meter-row{display:flex;justify-content:space-between;align-items:baseline;font-size:13px;color:var(--text-mid)}
.cta-meter-row strong{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  color:var(--glow-400);font-size:20px;font-weight:800;
}

/* ---------- 页脚 ---------- */
.app-footer{border-top:1px solid var(--line);background:var(--ink-800);padding:56px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:34px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.foot-desc{font-size:14px;color:var(--text-mid);max-width:320px;margin:0}
.foot-title{font-size:14px;font-weight:600;color:var(--text-hi);margin-bottom:16px}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-list li{font-size:14px;color:var(--text-mid);line-height:1.6}
.foot-list a{color:var(--text-mid)}
.foot-list a:hover{color:var(--brand-500)}
.qr-box{
  width:96px;height:96px;border-radius:12px;border:1px solid var(--line);
  background:var(--ink-700);display:grid;place-items:center;
  color:var(--text-low);font-size:30px;
}
.foot-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:44px;
  padding:20px 0 calc(20px + env(safe-area-inset-bottom));
  font-size:13px;color:var(--text-low);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;z-index:80;
  border-radius:50%;display:grid;place-items:center;
  background:var(--glass);border:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  color:var(--text-hi);cursor:pointer;font-size:14px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,border-color .2s ease;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:var(--brand-500);color:var(--brand-500)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-main{margin-left:var(--nav-w-sm)}
  .app-footer{margin-left:var(--nav-w-sm)}
  .side-nav-wrap{width:var(--nav-w-sm)}
  .side-head{justify-content:center;padding:0 10px}
  .brand-text{display:none}
  .side-label{display:none}
  .nav-item{justify-content:center;padding:14px 0;margin:4px 10px}
  .nav-item span{display:none}
  .nav-item::after{
    content:attr(data-title);position:absolute;left:calc(100% + 14px);top:50%;
    transform:translateY(-50%);white-space:nowrap;
    background:var(--glass);border:1px solid rgba(255,255,255,.08);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    color:var(--text-hi);font-size:13px;padding:7px 13px;border-radius:12px;
    opacity:0;pointer-events:none;transition:opacity .18s ease;z-index:99;
  }
  .nav-item:hover::after,.nav-item:focus-visible::after{opacity:1}
  .side-card{padding:12px;text-align:center}
  .side-card p{display:none}
  .side-card .button{padding:8px;font-size:0;min-height:40px}
  .side-card .button i{font-size:14px}
  .side-foot{display:none}
}
@media (max-width:991px){
  .side-nav-wrap{display:none}
  .mobile-bar{display:flex}
  .page-main{margin-left:0;padding-top:60px}
  .app-footer{margin-left:0}
  .cat-hero{padding-top:80px}
}
@media (max-width:900px){
  .cta-band{grid-template-columns:1fr}
  .cat-hero-inner{grid-template-columns:1fr;gap:24px}
  .hero-mini{min-width:0;width:100%;max-width:320px}
  .trap-list{grid-template-columns:1fr;gap:0}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .matrix{grid-template-columns:1fr}
  .m-card.wide{grid-column:1 / -1;grid-template-columns:1fr;padding:22px}
  .m-card{padding:20px}
  .cat-hero{min-height:300px;padding:76px 0 36px}
  .countdown .unit{min-width:62px;padding:8px 6px}
  .countdown .unit strong{font-size:30px}
  .countdown .colon{font-size:22px}
  .prep-card{padding:20px}
  .hero-actions .button{width:100%}
}
@media (max-width:575px){
  .foot-grid{grid-template-columns:1fr}
  .hero-mini{max-width:none}
  .section-head h2{font-size:22px}
  .countdown{gap:6px}
  .countdown .unit{min-width:56px}
  .countdown .unit strong{font-size:26px}
  .to-top{right:16px;bottom:16px}
}

/* roulang page: category2 */
:root{
  --ink-900:#05090F;
  --ink-800:#0A111D;
  --ink-700:#101A2B;
  --glass:rgba(18,28,46,.62);
  --brand-500:#37C8C3;
  --brand-600:#22A8A4;
  --glow-400:#FFB65C;
  --glow-500:#F59E2E;
  --urgent:#FF6B57;
  --success:#4ADE80;
  --text-hi:#EAF1FA;
  --text-mid:#A9B7CC;
  --text-low:#6C7C93;
  --line:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.1);

  --radius-card:16px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-pill:999px;
  --radius-sm:12px;

  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --inset-line:inset 0 0 0 1px rgba(255,255,255,.06);

  --side-w:240px;
  --side-w-sm:76px;
  --container:1240px;
  --bar-h:60px;

  --font-sans:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"PingFang SC",sans-serif;

  --sp-section:clamp(56px,7vw,104px);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--glow-400)}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-hi);letter-spacing:-0.01em}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
[id]{scroll-margin-top:100px}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:clamp(16px,4vw,40px);padding-right:clamp(16px,4vw,40px)}

/* ============ 侧边导航 ============ */
.app-shell{position:relative}
.side-nav{
  position:fixed;top:0;left:0;
  width:var(--side-w);height:100vh;
  background:var(--ink-800);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 12px;
  z-index:70;
}
.side-logo{
  height:72px;display:flex;align-items:center;gap:10px;
  padding:0 8px;border-bottom:1px solid var(--line);flex:0 0 auto;
}
.logo-mark{
  width:34px;height:34px;flex:0 0 auto;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-500),var(--glow-400));
  color:#04121A;font-weight:800;font-size:16px;line-height:1;
  box-shadow:0 0 18px -4px rgba(55,200,195,.6);
}
.logo-text{font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--text-hi);white-space:nowrap}
.side-nav-list{display:flex;flex-direction:column;gap:4px;padding:18px 0;flex:1 1 auto;overflow-y:auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:44px;padding:0 12px;border-radius:10px;
  color:var(--text-mid);font-size:15px;
  transition:background .2s ease,color .2s ease;
}
.nav-item i{width:18px;text-align:center;font-size:15px;flex:0 0 auto}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--text-hi)}
.nav-item.is-active{background:rgba(55,200,195,.12);color:var(--text-hi)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand-500);
}
.side-foot{flex:0 0 auto;padding:16px 0 20px;border-top:1px solid var(--line)}
.side-mini{
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:14px;
}
.side-mini p{font-size:13px;line-height:1.65;color:var(--text-mid)}
.side-mini strong{color:var(--glow-400);font-weight:700}
.side-mini .btn-glow{width:100%;margin-top:12px;min-height:40px;padding:0 12px;font-size:14px}
.side-contact{font-size:12px;color:var(--text-low);margin-top:14px;line-height:1.6}

/* ============ 主内容区 ============ */
.app-main{margin-left:var(--side-w);border-left:1px solid var(--line);min-height:100vh;position:relative}

/* ============ 移动端顶栏 + 抽屉 ============ */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:var(--bar-h);
  z-index:80;align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(10,17,29,.62);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
}
.mobile-bar.is-scrolled{background:rgba(10,17,29,.88);border-bottom-color:var(--line)}
.mobile-bar .logo-text{font-size:15px}
.bar-btn{
  width:44px;height:44px;display:grid;place-items:center;
  background:transparent;border:1px solid var(--line);border-radius:10px;
  color:var(--text-hi);cursor:pointer;transition:border-color .2s,background .2s;
}
.bar-btn:hover{border-color:var(--brand-500);background:rgba(55,200,195,.12)}
.drawer-mask{
  position:fixed;inset:0;z-index:99;
  background:rgba(3,6,12,.72);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  opacity:0;pointer-events:none;transition:opacity .28s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;left:0;width:280px;height:100vh;z-index:100;
  background:var(--ink-800);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:0 12px 24px;overflow-y:auto;
  transform:translateX(-100%);transition:transform .28s ease;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{height:var(--bar-h);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 4px 0 8px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:18px 0;flex:1 1 auto}
.drawer .side-mini{margin-top:auto}

/* ============ 按钮 ============ */
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border:0;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;color:#1A1004;cursor:pointer;
  background:linear-gradient(135deg,#FFB65C,#F59E2E);
  box-shadow:0 0 0 1px rgba(255,182,92,.45),0 8px 28px -6px rgba(255,182,92,.45);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,color .2s ease;
  text-decoration:none;white-space:nowrap;
}
.btn-glow:hover{color:#1A1004;transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(255,182,92,.55),0 0 34px -4px rgba(255,182,92,.6)}
.btn-glow:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,182,92,.4),0 4px 14px -6px rgba(255,182,92,.4)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-btn);
  background:transparent;border:1px solid var(--line);color:var(--text-hi);
  font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;
  transition:border-color .2s,background .2s,color .2s,transform .2s;
}
.btn-ghost:hover{border-color:var(--brand-500);background:rgba(55,200,195,.12);color:var(--text-hi);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand-500);font-size:15px;font-weight:600}
.link-arrow i{font-size:12px;transition:transform .22s ease}
.link-arrow:hover i{transform:translateX(6px)}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1;
  border:1px solid rgba(55,200,195,.42);color:var(--brand-500);
  background:rgba(55,200,195,.08);
}
.badge-glow{border-color:rgba(255,182,92,.48);color:var(--glow-400);background:rgba(255,182,92,.1)}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;isolation:isolate;overflow:hidden;
  display:flex;align-items:center;min-height:420px;
}
.cat-hero-bg{position:absolute;inset:0;z-index:-2;background-size:cover;background-position:center;background-repeat:no-repeat}
.cat-hero-overlay{
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(5,9,15,.92),rgba(5,9,15,.55));
}
.cat-hero-glow{
  position:absolute;top:-140px;right:-100px;width:60%;height:460px;z-index:-1;
  background:radial-gradient(circle at center,rgba(255,182,92,.08),transparent 70%);
  pointer-events:none;
}
.cat-hero-body{width:100%;max-width:820px;padding-top:clamp(64px,8vw,96px);padding-bottom:clamp(64px,8vw,96px)}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-low);margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:var(--text-mid)}
.crumb a:hover{color:var(--brand-500)}
.crumb .sep{color:var(--text-low);opacity:.6}
.crumb .current{color:var(--text-low)}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.18;font-weight:800;
  letter-spacing:-0.02em;margin-bottom:18px;
}
.cat-hero-sub{font-size:clamp(15px,1.4vw,17px);color:var(--text-mid);max-width:620px;margin-bottom:30px}
.cat-hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{
  position:absolute;right:clamp(16px,4vw,40px);bottom:36px;z-index:3;
  display:flex;gap:26px;padding:16px 22px;border-radius:14px;
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.08);box-shadow:var(--shadow-card);
}
.hero-stats .st{display:flex;flex-direction:column;gap:2px}
.hero-stats .st b{font-family:var(--font-num);font-size:24px;font-weight:800;color:var(--glow-400);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stats .st span{font-size:12px;color:var(--text-mid);white-space:nowrap}
.hero-stats .st+.st{border-left:1px solid var(--line);padding-left:26px}

/* ============ 指标条 ============ */
.metrics-bar{border-bottom:1px solid var(--line);background:rgba(16,26,43,.5)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.metric{padding:20px 22px;display:flex;align-items:center;gap:14px}
.metric+.metric{border-left:1px solid var(--line)}
.metric i{font-size:20px;color:var(--brand-500);flex:0 0 auto}
.metric .m-num{font-family:var(--font-num);font-size:18px;font-weight:700;color:var(--text-hi);font-variant-numeric:tabular-nums;display:block;line-height:1.35}
.metric .m-txt{font-size:13px;color:var(--text-low);display:block;line-height:1.5}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-section) 0}
.section-alt{background:rgba(10,17,29,.55);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:40px}
.section-eyebrow{font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--brand-500);margin-bottom:12px;text-transform:uppercase}
.section-title{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700}
.section-sub{margin-top:14px;color:var(--text-mid);font-size:15px;max-width:640px}

/* ============ 编号条目流 + 目录 ============ */
.detail-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:44px;align-items:start}
.detail-main{min-width:0}
.num-item{padding:34px 0;border-bottom:1px solid var(--line)}
.num-item:first-child{padding-top:0}
.num-item:last-child{border-bottom:0;padding-bottom:0}
.num-index{
  font-family:var(--font-num);font-size:44px;font-weight:800;line-height:1;
  letter-spacing:.02em;color:rgba(255,255,255,.06);font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.num-item h2{font-size:clamp(20px,2vw,24px);line-height:1.42;margin-bottom:14px}
.num-item p{color:var(--text-mid);font-size:16px;line-height:1.85;max-width:720px;margin-bottom:12px}
.check-list{margin-top:14px;margin-bottom:18px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-mid);margin-top:10px;line-height:1.7}
.check-list i{color:var(--brand-500);font-size:12px;margin-top:7px;flex:0 0 auto}

.toc-card{
  position:sticky;top:96px;
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 20px;box-shadow:var(--shadow-card),var(--inset-line);
}
.toc-title{font-size:14px;font-weight:600;color:var(--text-hi);margin-bottom:14px;letter-spacing:.02em}
.toc-list a{
  display:block;padding:9px 0 9px 12px;font-size:14px;color:var(--text-mid);
  border-left:2px solid transparent;transition:color .2s,border-color .2s,background .2s;
}
.toc-list a:hover{color:var(--text-hi);background:rgba(255,255,255,.03)}
.toc-list a.is-active{color:var(--brand-500);border-left-color:var(--brand-500);background:rgba(55,200,195,.07)}
.toc-cta{margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}
.toc-cta p{font-size:13px;color:var(--text-low);line-height:1.65;margin-bottom:12px}
.toc-cta .btn-glow{width:100%;min-height:42px;font-size:14px}

/* ============ 图文块 ============ */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center}
.split-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow-card)}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.split-body h2{font-size:clamp(22px,2.4vw,28px);line-height:1.34;margin-bottom:16px}
.split-body p{color:var(--text-mid);font-size:16px;line-height:1.85;margin-bottom:12px}
.split-body .check-list{margin-bottom:22px}

/* ============ 档位速览 ============ */
.rank-list{display:flex;flex-direction:column;gap:12px}
.rank-row{
  display:grid;grid-template-columns:52px minmax(0,1.05fr) minmax(0,.85fr) minmax(0,1.6fr) auto;
  gap:18px;align-items:center;
  padding:18px 22px;border-radius:14px;background:var(--ink-700);
  border:1px solid var(--line);box-shadow:var(--inset-line);
  transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.rank-row:hover{transform:translateY(-2px);border-color:rgba(55,200,195,.35);background:rgba(16,26,43,.92)}
.rank-no{font-family:var(--font-num);font-size:19px;font-weight:800;color:var(--text-low);font-variant-numeric:tabular-nums}
.rank-name{display:flex;align-items:center;gap:8px;font-weight:700;font-size:16px;color:var(--text-hi)}
.rank-price{font-family:var(--font-num);font-weight:800;font-size:16px;color:var(--glow-400);font-variant-numeric:tabular-nums;white-space:nowrap}
.rank-desc{font-size:14px;color:var(--text-mid);line-height:1.65}
.rank-row .link-arrow{font-size:14px}

/* ============ FAQ ============ */
.faq-acc{border:0;background:transparent;max-width:880px}
.faq-acc .accordion-item{
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--radius-sm);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--inset-line);
}
.faq-acc .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;
  font-size:16px;font-weight:600;color:var(--text-hi);line-height:1.5;
  position:relative;transition:color .2s ease;
}
.faq-acc .accordion-title::before{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--text-low);order:2;transition:transform .25s ease,color .2s ease;
}
.faq-acc .accordion-item.is-active>.accordion-title::before{transform:rotate(180deg);color:var(--brand-500)}
.faq-acc .accordion-item.is-active>.accordion-title{color:var(--brand-500)}
.faq-acc .accordion-content{
  background:transparent;border:0;border-top:1px solid var(--line);
  padding:16px 20px 20px;color:var(--text-mid);font-size:15px;line-height:1.8;
  position:relative;
}
.faq-acc .accordion-item.is-active>.accordion-content::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;background:var(--brand-500);
}

/* ============ CTA 条带 ============ */
.cta-band{padding:0 0 var(--sp-section)}
.cta-inner{
  border-radius:var(--radius-card);border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(120deg,rgba(55,200,195,.10),rgba(255,182,92,.10)),rgba(10,17,29,.72);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  padding:clamp(24px,3vw,40px);
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:36px;align-items:center;
  box-shadow:var(--shadow-card);
}
.cta-left .badge{margin-bottom:16px}
.cta-left h2{font-size:clamp(20px,2.2vw,26px);line-height:1.38;margin-bottom:10px}
.cta-left p{color:var(--text-mid);font-size:15px;margin-bottom:20px;max-width:520px}
.countdown{display:inline-flex;align-items:center;gap:10px}
.cd-num{
  display:inline-grid;place-items:center;min-width:66px;height:60px;padding:0 8px;
  background:var(--ink-800);border:1px solid var(--line);border-radius:12px;
  font-family:var(--font-num);font-size:clamp(28px,3.2vw,40px);font-weight:800;
  font-variant-numeric:tabular-nums;color:var(--text-hi);line-height:1;
}
.cd-sep{color:var(--text-low);font-size:22px;font-weight:700}
.countdown.is-urgent .cd-num{color:var(--urgent);border-color:rgba(255,107,87,.35)}
.countdown.is-urgent{animation:cdPulse 1.6s ease-in-out infinite}
@keyframes cdPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.03)}}
@media (prefers-reduced-motion: reduce){
  .countdown.is-urgent{animation:none}
  html{scroll-behavior:auto}
}
.cta-right .progress-track{height:8px;border-radius:var(--radius-pill);background:rgba(255,255,255,.08);overflow:hidden}
.cta-right .progress-fill{height:100%;width:63%;border-radius:var(--radius-pill);background:linear-gradient(90deg,var(--brand-500),var(--glow-400))}
.cta-right .cta-note{margin:12px 0 18px;font-size:13px;color:var(--text-mid)}
.cta-right .btn-glow{width:100%}

/* ============ 页脚 ============ */
.app-footer{
  background:var(--ink-900);border-top:1px solid var(--line);
  padding:clamp(40px,5vw,64px) 0 calc(24px + env(safe-area-inset-bottom));
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-desc{font-size:14px;color:var(--text-mid);line-height:1.75;max-width:340px}
.foot-title{font-size:14px;font-weight:600;color:var(--text-hi);margin-bottom:14px}
.foot-list li{margin-bottom:10px}
.foot-list a,.foot-list span{font-size:14px;color:var(--text-mid);line-height:1.6}
.foot-list a:hover{color:var(--brand-500)}
.qr-box{
  width:76px;height:76px;border-radius:12px;display:grid;place-items:center;
  background:var(--ink-700);border:1px solid var(--line);color:var(--text-low);font-size:28px;
}
.foot-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-low);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;z-index:85;
  display:grid;place-items:center;border-radius:50%;cursor:pointer;
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.1);color:var(--text-hi);
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,border-color .2s,color .2s;
}
.to-top.is-show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{border-color:var(--brand-500);color:var(--brand-500)}

/* ============ 断点 ============ */
@media (max-width:1199px) and (min-width:992px){
  .side-nav{width:var(--side-w-sm);padding:0 8px;align-items:stretch}
  .app-main{margin-left:var(--side-w-sm)}
  .logo-text,.side-mini,.side-contact{display:none}
  .side-logo{justify-content:center;padding:0}
  .nav-item{justify-content:center;padding:0}
  .nav-item span{display:none}
  .nav-item::after{
    content:attr(data-title);
    position:absolute;left:66px;top:50%;transform:translateY(-50%) translateX(-6px);
    background:var(--ink-700);border:1px solid var(--line);color:var(--text-hi);
    font-size:13px;padding:6px 12px;border-radius:12px;white-space:nowrap;
    opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease;
    box-shadow:var(--shadow-card);z-index:95;
  }
  .nav-item:hover::after,.nav-item:focus-visible::after{opacity:1;transform:translateY(-50%) translateX(0)}
  .detail-grid{grid-template-columns:minmax(0,1.9fr) minmax(0,1fr);gap:32px}
}

@media (max-width:991px){
  .side-nav{display:none}
  .mobile-bar{display:flex}
  .app-main{margin-left:0;border-left:0;padding-top:var(--bar-h)}
  .detail-grid{grid-template-columns:1fr;gap:0}
  .detail-side{order:-1;position:sticky;top:var(--bar-h);z-index:40;background:rgba(10,17,29,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);margin:0 -1px 26px}
  .toc-card{position:static;background:transparent;border:0;border-radius:0;box-shadow:none;padding:0}
  .toc-title{display:none}
  .toc-list{display:flex;gap:22px;overflow-x:auto;padding:14px 16px;white-space:nowrap;-webkit-overflow-scrolling:touch}
  .toc-list a{padding:0;border-left:0;font-size:14px}
  .toc-list a.is-active{background:transparent;border-left:0;color:var(--brand-500)}
  .toc-cta{display:none}
  [id]{scroll-margin-top:132px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(3){border-left:0}
  .metric:nth-child(n+3){border-top:1px solid var(--line)}
  .split{grid-template-columns:1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr;gap:26px}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .hero-stats{right:16px;bottom:24px}
}

@media (max-width:767px){
  .cat-hero{min-height:320px}
  .hero-stats{display:none}
  .cat-hero-actions{flex-direction:column;align-items:stretch;gap:10px}
  .cat-hero-actions .btn-glow,.cat-hero-actions .btn-ghost{width:100%}
  .rank-row{grid-template-columns:44px 1fr;grid-auto-rows:auto;gap:10px 14px;padding:16px}
  .rank-no{grid-row:span 3;align-self:start;padding-top:2px}
  .rank-price{justify-self:start}
  .rank-desc{grid-column:2}
  .rank-row .link-arrow{grid-column:2}
  .foot-grid{grid-template-columns:1fr}
  .cd-num{min-width:56px;height:52px;font-size:28px}
  .num-index{font-size:38px}
}

@media (max-width:575px){
  .metrics-grid{grid-template-columns:1fr}
  .metric+.metric{border-left:0}
  .metric{border-top:1px solid var(--line);padding:16px 18px}
  .metric:first-child{border-top:0}
  .to-top{right:14px;bottom:16px}
}

/* roulang page: category4 */
:root{
  --ink-900:#05090F;
  --ink-800:#0A111D;
  --ink-700:#101A2B;
  --glass:rgba(18,28,46,.62);
  --brand-500:#37C8C3;
  --brand-600:#22A8A4;
  --glow-400:#FFB65C;
  --glow-500:#F59E2E;
  --urgent:#FF6B57;
  --success:#4ADE80;
  --text-hi:#EAF1FA;
  --text-mid:#A9B7CC;
  --text-low:#6C7C93;
  --line:rgba(255,255,255,.07);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-glow:0 0 0 1px rgba(255,182,92,.45),0 8px 28px -6px rgba(255,182,92,.45);
  --font-main:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:Inter,"SF Pro Display",system-ui,-apple-system,sans-serif;
  --side-w:240px;
  --side-w-mini:76px;
  --header-h:60px;
  --sp-1:8px;
  --sp-2:14px;
  --sp-3:20px;
  --sp-4:28px;
  --sp-5:40px;
  --sp-6:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-mid);
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover,a:focus{color:var(--glow-400)}
ul,ol{margin:0;padding:0}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:700;line-height:1.3}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 clamp(16px,4vw,40px)}
.section{padding:clamp(56px,7vw,104px) 0}
.section--tight{padding:clamp(44px,5vw,72px) 0}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--radius-pill);font-size:12px;font-weight:600;letter-spacing:.04em;
  border:1px solid rgba(55,200,195,.4);color:var(--brand-500);background:rgba(55,200,195,.08);
}
.badge--gold{border-color:rgba(255,182,92,.42);color:var(--glow-400);background:rgba(255,182,92,.08)}
.sec-head{max-width:720px;margin-bottom:clamp(28px,3vw,40px)}
.sec-title{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;letter-spacing:-.01em;margin:12px 0 12px}
.sec-desc{font-size:15px;line-height:1.85;color:var(--text-mid);max-width:720px;margin:0}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border:0;border-radius:var(--radius-btn);
  background:linear-gradient(135deg,#FFB65C,#F59E2E);
  color:#1A1004;font-size:15px;font-weight:700;letter-spacing:.02em;
  cursor:pointer;box-shadow:var(--shadow-glow);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-glow:hover{transform:translateY(-1px);filter:brightness(1.08);color:#1A1004;box-shadow:0 0 0 1px rgba(255,182,92,.5),0 10px 34px -6px rgba(255,182,92,.6)}
.btn-glow:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,182,92,.4),0 4px 14px -6px rgba(255,182,92,.4)}
.btn-glow:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.btn-glow.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-btn);
  background:transparent;border:1px solid var(--line);color:var(--text-hi);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:border-color .2s ease,background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{border-color:var(--brand-500);background:rgba(55,200,195,.12);color:var(--text-hi);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;
  color:var(--brand-500);border-bottom:1px solid transparent;padding-bottom:2px;
}
.link-arrow i{font-size:12px;transition:transform .2s ease}
.link-arrow:hover{color:var(--glow-400)}
.link-arrow:hover i{transform:translateX(6px)}

/* ============ 侧栏导航 ============ */
.side-nav{
  position:fixed;top:0;left:0;width:var(--side-w);height:100vh;z-index:40;
  background:var(--ink-800);display:flex;flex-direction:column;
  padding:0 14px 22px;
}
.side-logo{height:72px;display:flex;align-items:center;gap:10px;padding:0 8px;border-bottom:1px solid var(--line)}
.logo-mark{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-500),var(--glow-400));
  color:#05090F;font-size:16px;font-weight:800;letter-spacing:0;
}
.logo-text{color:var(--text-hi);font-size:15px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.side-nav-list{display:flex;flex-direction:column;gap:4px;padding:14px 0}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:44px;padding:0 12px;border-radius:10px;
  color:var(--text-mid);font-size:14.5px;font-weight:500;
  transition:background .2s ease,color .2s ease;
}
.nav-item i{width:20px;text-align:center;font-size:15px;color:var(--text-low);transition:color .2s ease}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--text-hi)}
.nav-item:hover i{color:var(--brand-500)}
.nav-item.is-active{background:rgba(55,200,195,.12);color:var(--text-hi);font-weight:600}
.nav-item.is-active i{color:var(--brand-500)}
.nav-item.is-active::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;background:var(--brand-500)}
.side-divider{height:1px;background:var(--line);margin:6px 0 16px}
.side-mini{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:rgba(255,182,92,.05);padding:14px;display:grid;gap:10px;
}
.mini-label{display:flex;align-items:center;gap:8px;margin:0;font-size:13px;line-height:1.6;color:var(--text-mid)}
.mini-label i{color:var(--glow-400)}
.side-foot{margin-top:auto;padding:16px 6px 0;display:grid;gap:6px}
.side-foot p{margin:0;font-size:12.5px;color:var(--text-low)}

/* ============ 页面外壳 ============ */
.page-shell{
  margin-left:var(--side-w);
  border-left:1px solid var(--line);
  min-height:100vh;display:flex;flex-direction:column;
}
main{flex:1 1 auto}

/* ============ 移动顶栏 ============ */
.mobile-topbar{
  position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:55;
  display:none;align-items:center;justify-content:space-between;
  padding:0 16px;background:transparent;border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.mobile-topbar.is-solid{background:rgba(10,17,29,.88);backdrop-filter:blur(12px);border-bottom-color:var(--line)}
.brand-mini{display:flex;align-items:center;gap:10px;color:var(--text-hi)}
.menu-btn{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:var(--ink-700);color:var(--text-hi);font-size:17px;cursor:pointer;
  display:grid;place-items:center;transition:border-color .2s ease,color .2s ease;
}
.menu-btn:hover{border-color:var(--brand-500);color:var(--brand-500)}

/* ============ 抽屉 ============ */
.off-canvas.drawer{
  width:280px;background:var(--ink-800);border-right:1px solid var(--line);
  padding:0 14px 26px;display:flex;flex-direction:column;
}
.drawer-head{display:flex;align-items:center;gap:10px;height:64px;border-bottom:1px solid var(--line)}
.drawer-head .logo-text{font-size:14.5px}
.drawer-close{
  margin-left:auto;width:38px;height:38px;border-radius:10px;cursor:pointer;
  border:1px solid var(--line);background:transparent;color:var(--text-mid);font-size:16px;
  display:grid;place-items:center;transition:border-color .2s,color .2s;
}
.drawer-close:hover{border-color:var(--brand-500);color:var(--brand-500)}
.drawer .nav-item{margin-top:4px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:14px 0}
.js-off-canvas-overlay{background:rgba(3,6,12,.72);backdrop-filter:blur(6px)}

/* ============ 分类窄幅 Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:clamp(320px,42vh,420px);
  display:flex;align-items:center;
  background-image:linear-gradient(180deg,rgba(5,9,15,.92),rgba(5,9,15,.55)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;background-repeat:no-repeat;
}
.cat-hero::after{
  content:"";position:absolute;top:-30%;right:-12%;width:60%;height:150%;
  background:radial-gradient(circle at center,rgba(255,182,92,.08),transparent 68%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;padding-top:clamp(48px,6vw,72px);padding-bottom:clamp(48px,6vw,72px)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:16px}
.crumb a{color:var(--text-mid)}
.crumb a:hover{color:var(--brand-500)}
.crumb .sep{color:var(--text-low)}
.crumb .current{color:var(--text-low)}
.hero-h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.18;font-weight:800;
  letter-spacing:-.02em;color:var(--text-hi);max-width:19em;margin:0 0 14px;
}
.hero-sub{font-size:16px;line-height:1.8;color:var(--text-mid);max-width:32em;margin:0 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-stat{
  position:absolute;right:clamp(16px,4vw,40px);bottom:30px;z-index:3;
  display:flex;gap:26px;padding:16px 22px;border-radius:14px;
  background:var(--glass);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.08);box-shadow:var(--shadow-card);
}
.hero-stat .stat{display:grid;gap:2px}
.hero-stat b{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:22px;font-weight:800;color:var(--text-hi);line-height:1.2}
.hero-stat span{font-size:12.5px;color:var(--text-low);letter-spacing:.02em}

/* ============ 图文引入 ============ */
.intro-grid{display:grid;grid-template-columns:7fr 5fr;gap:clamp(24px,3vw,48px);align-items:center;margin-bottom:clamp(32px,4vw,52px)}
.intro-figure{margin:0;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);background:var(--ink-700)}
.intro-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.tick-list{list-style:none;margin:18px 0 0;display:grid;gap:10px}
.tick-list li{position:relative;padding-left:24px;font-size:15px;line-height:1.8;color:var(--text-mid)}
.tick-list li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;background:var(--brand-500);box-shadow:0 0 12px rgba(55,200,195,.6)}

/* ============ 对比表 ============ */
.table-scroll{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--ink-800);box-shadow:var(--shadow-card);
}
table.cmp{width:100%;min-width:820px;border-collapse:collapse;font-size:14.5px}
.cmp thead th{
  background:var(--ink-800);color:var(--text-hi);font-size:14px;font-weight:600;
  padding:18px;text-align:center;white-space:nowrap;border-bottom:1px solid var(--line);
}
.cmp th:first-child,.cmp td:first-child{text-align:left}
.cmp tbody td{
  padding:17px 18px;text-align:center;color:var(--text-mid);
  border-bottom:1px solid var(--line);vertical-align:middle;
}
.cmp tbody tr:last-child td{border-bottom:0}
.cmp tbody tr{transition:background .2s ease}
.cmp tbody tr:hover{background:rgba(255,255,255,.03)}
.cmp .row-name{color:var(--text-hi);font-weight:600;display:inline-flex;align-items:center;gap:10px}
.cmp .row-name i{color:var(--brand-500);font-size:14px}
.cmp .col-rec{background:rgba(255,182,92,.05)}
.cmp thead .col-rec{color:var(--glow-400);border-left:1px solid rgba(255,182,92,.35);border-right:1px solid rgba(255,182,92,.35)}
.cmp tbody .col-rec{border-left:1px solid rgba(255,182,92,.35);border-right:1px solid rgba(255,182,92,.35)}
.cmp .yes{color:var(--brand-500);font-size:15px}
.cmp .dash{color:var(--text-low);font-weight:600}
.table-note{margin:14px 0 0;font-size:13px;color:var(--text-low)}

/* ============ 四步流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{position:relative;padding-top:56px}
.step::before{
  content:"";position:absolute;top:15px;left:16px;right:-22px;height:1px;
  background:linear-gradient(90deg,rgba(55,200,195,.45),rgba(255,182,92,.35));
}
.step:last-child::before{display:none}
.step-node{
  position:absolute;top:0;left:0;width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;background:var(--ink-700);border:1px solid var(--line);
  color:var(--text-hi);font-family:var(--font-num);font-size:13px;font-weight:700;
}
.step h3{font-size:17px;font-weight:600;margin:0 0 8px;color:var(--text-hi)}
.step p{margin:0;font-size:14.5px;line-height:1.8;color:var(--text-mid)}
.step-tag{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;margin-top:12px;
  border-radius:var(--radius-pill);font-size:11.5px;font-weight:600;letter-spacing:.04em;
  border:1px solid rgba(255,182,92,.4);color:var(--glow-400);background:rgba(255,182,92,.08);
}
.step.is-current .step-node{
  background:linear-gradient(135deg,#FFB65C,#F59E2E);color:#1A1004;border-color:transparent;
  box-shadow:0 0 0 4px rgba(255,182,92,.14),0 0 20px -2px rgba(255,182,92,.6);
}

/* ============ 准备清单 ============ */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.prep-card{
  position:relative;background:var(--ink-700);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 24px;overflow:hidden;
  box-shadow:var(--shadow-card);transition:transform .25s ease,border-color .25s ease;
}
.prep-card:hover{transform:translateY(-4px);border-color:rgba(55,200,195,.32)}
.prep-no{
  font-family:var(--font-num);font-size:52px;font-weight:800;line-height:1;
  color:rgba(255,255,255,.06);display:block;margin-bottom:12px;letter-spacing:-.02em;
}
.prep-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.prep-card p{margin:0;font-size:14.5px;line-height:1.8;color:var(--text-mid)}

/* ============ FAQ ============ */
.cat-faq{list-style:none;border:0;background:transparent;display:grid;gap:12px;margin:0}
.cat-faq .accordion-item{
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--radius-sm);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.cat-faq .accordion-item.is-active{border-color:rgba(55,200,195,.3);box-shadow:inset 2px 0 0 var(--brand-500)}
.cat-faq .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--text-hi);
  background:transparent;border:0;line-height:1.6;
}
.cat-faq .accordion-title:hover{background:rgba(255,255,255,.03);color:var(--text-hi)}
.cat-faq .accordion-title::before{
  content:"";flex:0 0 auto;width:8px;height:8px;order:2;
  border-right:2px solid var(--text-low);border-bottom:2px solid var(--text-low);
  transform:rotate(45deg);transition:transform .25s ease,border-color .25s ease;
}
.cat-faq .accordion-item.is-active .accordion-title::before{transform:rotate(-135deg);border-color:var(--brand-500)}
.cat-faq .accordion-content{
  padding:0 22px 20px;border:0;border-top:1px solid var(--line);background:transparent;
  color:var(--text-mid);font-size:15px;line-height:1.8;
}
.cat-faq .accordion-content p:last-child{margin-bottom:0}
.cat-faq .accordion-content{margin-top:0}

/* ============ CTA 条带 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  padding:clamp(28px,4vw,46px);
  background:linear-gradient(120deg,rgba(55,200,195,.10),rgba(255,182,92,.10));
  border:1px solid var(--line);
  display:grid;grid-template-columns:7fr 5fr;gap:clamp(22px,3vw,44px);align-items:center;
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(21px,2.2vw,28px);line-height:1.35;margin:0 0 12px}
.cta-band p{margin:0 0 8px;font-size:14.5px;line-height:1.8;color:var(--text-mid);max-width:34em}
.cta-side{display:grid;gap:16px}
.meter-head{display:flex;justify-content:space-between;font-size:13px;color:var(--text-low)}
.meter-head b{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--text-hi);font-weight:700}
.meter{height:8px;border-radius:var(--radius-pill);background:var(--ink-800);overflow:hidden;border:1px solid var(--line)}
.meter span{display:block;height:100%;width:78%;background:linear-gradient(90deg,var(--brand-500),var(--glow-400))}
.cta-side .btn-glow{width:100%}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 弹窗 ============ */
.reveal{
  background:var(--glass);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-card);
  color:var(--text-mid);box-shadow:var(--shadow-card);
}
.reveal h3{font-size:20px;margin-bottom:14px;color:var(--text-hi)}
.reveal .close-button{color:var(--text-low);top:14px;right:16px;font-size:20px}
.reveal .close-button:hover{color:var(--brand-500)}
.scope-list{list-style:none;display:grid;gap:10px;margin:0}
.scope-list li{position:relative;padding-left:22px;font-size:14.5px;line-height:1.8}
.scope-list li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--brand-500)}
.scope-list li.no::before{background:var(--text-low)}

/* ============ 页脚 ============ */
.app-footer{border-top:1px solid var(--line);background:var(--ink-900);padding-top:56px;margin-top:clamp(56px,7vw,96px)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-desc{font-size:14px;line-height:1.8;color:var(--text-mid);max-width:300px;margin:0}
.foot-title{font-size:14px;font-weight:600;color:var(--text-hi);margin:0 0 14px}
.foot-list{list-style:none;display:grid;gap:10px}
.foot-list a,.foot-list span{font-size:14px;color:var(--text-mid)}
.foot-list a:hover{color:var(--brand-500)}
.qr-box{
  width:72px;height:72px;border-radius:12px;display:grid;place-items:center;
  background:var(--ink-700);border:1px solid var(--line);color:var(--text-low);font-size:26px;
}
.foot-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  padding:18px 0 calc(20px + env(safe-area-inset-bottom));
  border-top:1px solid var(--line);font-size:13px;color:var(--text-low);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;z-index:60;
  border-radius:50%;display:grid;place-items:center;cursor:pointer;
  background:var(--glass);backdrop-filter:blur(12px);
  border:1px solid var(--line);color:var(--text-hi);font-size:15px;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease,border-color .2s ease,color .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible}
.to-top:hover{border-color:var(--brand-500);color:var(--brand-500)}

/* ============ Foundation 覆盖 ============ */
.button,.button:hover,.button:focus{background:linear-gradient(135deg,#FFB65C,#F59E2E);color:#1A1004;border-radius:var(--radius-btn);font-weight:700}
.button.secondary{background:transparent;border:1px solid var(--line);color:var(--text-hi)}
.callout{background:var(--glass);border:1px solid rgba(255,255,255,.08);border-left:3px solid var(--brand-500);color:var(--text-mid);border-radius:0 var(--radius-sm) var(--radius-sm) 0}
.callout.warning{border-left-color:var(--glow-400)}
.progress{height:8px;border-radius:var(--radius-pill);background:var(--ink-800);border:1px solid var(--line)}
.progress-meter{background:linear-gradient(90deg,var(--brand-500),var(--glow-400))}
.top-bar,.top-bar-left,.top-bar-right{background:var(--ink-800);color:var(--text-mid)}
.top-bar ul{background:transparent}
.off-canvas-content{box-shadow:none;background:transparent;padding:0}

/* ============ 响应式 ============ */
@media (min-width:992px) and (max-width:1199px){
  .side-nav{width:var(--side-w-mini);padding:0 10px 20px;align-items:center}
  .side-logo{justify-content:center;padding:0;width:100%}
  .side-logo .logo-text{display:none}
  .side-nav-list{width:100%}
  .nav-item{justify-content:center;padding:0}
  .nav-item span{display:none}
  .nav-item::after{
    content:attr(data-title);position:absolute;left:58px;top:50%;
    transform:translateY(-50%) translateX(-6px);
    background:rgba(10,17,29,.94);backdrop-filter:blur(12px);
    border:1px solid var(--line);border-radius:12px;padding:8px 12px;
    font-size:13px;color:var(--text-hi);white-space:nowrap;
    opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;z-index:50;
  }
  .nav-item:hover::after,.nav-item:focus-visible::after{opacity:1;transform:translateY(-50%) translateX(0)}
  .side-mini,.side-foot,.side-divider{display:none}
  .page-shell{margin-left:var(--side-w-mini)}
}
@media (max-width:991px){
  .side-nav{display:none}
  .mobile-topbar{display:flex}
  .page-shell{margin-left:0;border-left:0;padding-top:var(--header-h)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero-stat{display:none}
}
@media (max-width:991px){
  .intro-grid{grid-template-columns:1fr}
  .prep-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr;row-gap:34px}
  .step:nth-child(2)::before{display:none}
}
@media (max-width:767px){
  .cat-hero{min-height:280px}
  .hero-h1{font-size:clamp(26px,7vw,34px)}
  .hero-sub{font-size:15px;margin-bottom:22px}
  .hero-actions .btn-glow{width:100%}
  .prep-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:0}
  .step{padding:0 0 26px 52px}
  .step::before{
    top:36px;left:15px;right:auto;bottom:0;width:1px;height:auto;
    background:linear-gradient(180deg,rgba(55,200,195,.4),rgba(255,182,92,.25));
  }
  .step:last-child{padding-bottom:0}
  .step:last-child::before{display:none}
  .cta-band{grid-template-columns:1fr}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn-ghost{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:calc(16px + env(safe-area-inset-bottom))}
}
@media (max-width:575px){
  .section{padding:56px 0}
  .sec-title{font-size:22px}
  .cat-faq .accordion-title{font-size:15px;padding:16px 18px}
  .cat-faq .accordion-content{padding:0 18px 18px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}