/* roulang page: index */
:root{
  --c-bg:#FFF7F2;
  --c-surface:#FFFFFF;
  --c-surface-2:#FDEFE7;
  --c-ink:#1B1230;
  --c-ink-2:#4A3F63;
  --c-ink-3:#8A7F9C;
  --c-primary:#FF5C39;
  --c-primary-2:#FF8A3D;
  --c-accent:#7B3FF2;
  --c-accent-2:#B14BFF;
  --c-mint:#1FC8B0;
  --c-lime:#C6F24E;
  --c-line:#F0E1D8;
  --grad-brand:linear-gradient(118deg,#FF5C39 0%,#B14BFF 62%,#1FC8B0 100%);
  --sh-1:0 2px 8px rgba(27,18,48,.06);
  --sh-2:0 18px 40px -12px rgba(27,18,48,.18);
  --sh-brand:0 12px 28px -10px rgba(255,92,57,.45);
  --r-s:10px;
  --r-m:20px;
  --r-l:24px;
  --pill:999px;
  --w:1200px;
  --nav-h:68px;
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-accent);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;color:var(--c-ink);letter-spacing:-.01em;}
p{margin:0 0 18px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--c-ink);}
:focus-visible{outline:3px solid rgba(123,63,242,.35);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 20px;}
@media (min-width:1440px){.container{max-width:1280px;}}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--alt{background:var(--c-surface-2);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{font-size:28px;}
.section-head p{margin:10px 0 0;color:var(--c-ink-2);font-size:16px;max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 14px;border-radius:var(--pill);
  background:#fff;border:1.5px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-brand);
  background-origin:border-box;background-clip:padding-box,border-box;
  font-size:13px;font-weight:600;color:var(--c-accent);
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--grad-brand);}
.grad-line{width:56px;height:6px;border-radius:var(--pill);background:var(--grad-brand);}
.grad-text{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--pill);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,background .22s ease,color .22s ease;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-brand);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px -12px rgba(177,75,255,.5);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--c-accent);border:1.5px solid var(--c-accent);}
.btn-ghost:hover{background:rgba(123,63,242,.06);color:var(--c-accent);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.link-more{font-size:14px;font-weight:600;color:var(--c-accent);white-space:nowrap;}
.link-more:hover{color:var(--c-primary);}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,247,242,.88);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
}
.site-header::after{content:"";display:block;height:2px;background:var(--grad-brand);opacity:.9;}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--grad-brand);position:relative;box-shadow:var(--sh-brand);}
.brand-mark::after{content:"";position:absolute;inset:10px;border-radius:4px;background:#fff;opacity:.92;}
.brand-text{font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em;}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--c-ink-3);letter-spacing:.06em;line-height:1.2;}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:flex-start;margin-left:18px;}
.nav-links a{
  position:relative;padding:8px 12px;border-radius:10px;
  font-size:14.5px;font-weight:500;color:var(--c-ink-2);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--grad-brand);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-links a:hover{color:var(--c-ink);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-ink);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--pill);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  transition:transform .2s ease,border-color .2s ease,color .2s ease;
}
.icon-btn:hover{transform:translateY(-2px);border-color:var(--c-accent);color:var(--c-accent);}
.nav-toggle{display:none;}
.nav-cta{height:40px;padding:0 22px;font-size:14px;}

/* mobile drawer */
.drawer{
  display:none;border-top:1px solid var(--c-line);background:#fff;
  padding:12px 20px 20px;
}
.drawer.is-open{display:block;}
.drawer a{
  display:block;padding:12px 4px;font-size:15px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.drawer a:last-of-type{border-bottom:0;}
.drawer a.is-active{color:var(--c-accent);font-weight:600;}
.drawer .btn{margin-top:14px;}

/* ---------- Hero ---------- */
.hero{position:relative;padding:40px 0 0;}
.hero-grid{display:flex;flex-wrap:wrap;align-items:center;gap:0;min-height:600px;}
.hero-copy{flex:1 1 50%;max-width:50%;padding:24px 40px 64px 0;}
.hero-visual{flex:1 1 50%;max-width:50%;position:relative;}
.hero-copy h1{font-size:46px;line-height:1.18;margin:20px 0 18px;}
.hero-copy h1 .hl{position:relative;display:inline-block;}
.hero-copy h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:10px;
  border-radius:6px;background:rgba(198,242,78,.75);z-index:-1;
}
.hero-sub{font-size:17px;line-height:1.8;color:var(--c-ink-2);max-width:520px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;}
.stat-badge{
  background:#fff;border-radius:var(--r-m);padding:14px 18px;min-width:132px;
  border:1.5px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-brand);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:var(--sh-1);
}
.stat-badge .val{font-size:26px;font-weight:800;line-height:1.1;color:var(--c-ink);font-variant-numeric:tabular-nums;}
.stat-badge .val em{font-style:normal;font-size:14px;font-weight:600;color:var(--c-accent);margin-left:2px;}
.stat-badge .lab{font-size:13px;color:var(--c-ink-3);margin-top:2px;}
.hero-media{
  position:relative;border-radius:28px 0 0 28px;overflow:hidden;
  aspect-ratio:16/11;border:1px solid var(--c-line);box-shadow:var(--sh-2);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(255,92,57,.32) 0%,rgba(177,75,255,.26) 58%,rgba(31,200,176,.2) 100%);
}
.hero-float{
  position:absolute;right:20px;bottom:20px;z-index:2;
  background:rgba(255,255,255,.97);border-radius:20px;box-shadow:var(--sh-2);
  padding:16px 20px;min-width:200px;border:1px solid var(--c-line);
}
.hero-float .row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;}
.hero-float .row + .row{margin-top:8px;padding-top:8px;border-top:1px dashed var(--c-line);}
.hero-float .k{font-size:13px;color:var(--c-ink-3);}
.hero-float .v{font-size:16px;font-weight:700;color:var(--c-ink);font-variant-numeric:tabular-nums;}

/* ---------- Steps ladder ---------- */
.ladder{display:flex;align-items:flex-end;gap:0;position:relative;}
.ladder-item{flex:1 1 0;padding:0 10px;position:relative;}
.ladder-item .conn{position:absolute;top:50%;right:-6px;width:14px;height:2px;background:var(--grad-brand);border-radius:2px;}
.ladder-item:last-child .conn{display:none;}
.ladder-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);
  padding:22px 20px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease;
}
.ladder-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.ladder-item:nth-child(1) .ladder-card{min-height:180px;}
.ladder-item:nth-child(2) .ladder-card{min-height:220px;}
.ladder-item:nth-child(3) .ladder-card{min-height:260px;border:2px solid transparent;background-image:linear-gradient(#fff,#fff),var(--grad-brand);background-origin:border-box;background-clip:padding-box,border-box;position:relative;}
.ladder-item:nth-child(4) .ladder-card{min-height:300px;}
.ladder-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--pill);
  font-size:13px;font-weight:600;background:rgba(123,63,242,.1);color:var(--c-accent);align-self:flex-start;
}
.ladder-card h3{font-size:19px;margin:14px 0 8px;}
.ladder-card p{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin:0 0 16px;}
.ladder-card .link-more{margin-top:auto;}
.ladder-mark{
  position:absolute;top:-12px;right:16px;height:24px;padding:0 12px;border-radius:var(--pill);
  background:var(--grad-brand);color:#fff;font-size:12px;font-weight:600;display:inline-flex;align-items:center;
}

/* ---------- Compare table ---------- */
.table-scroll{overflow-x:auto;border-radius:var(--r-l);border:1px solid var(--c-line);background:#fff;box-shadow:var(--sh-1);}
.cmp{width:100%;min-width:720px;border-collapse:collapse;}
.cmp th,.cmp td{padding:0 20px;height:56px;font-size:14.5px;text-align:left;border-bottom:1px solid var(--c-line);}
.cmp thead th{
  background:var(--grad-brand);color:#fff;font-weight:700;font-size:15px;height:60px;
}
.cmp thead th:first-child{background:var(--c-ink);color:#fff;}
.cmp tbody tr:nth-child(odd){background:#FFFBF8;}
.cmp tbody tr:nth-child(even){background:#FFFFFF;}
.cmp tbody td:first-child{color:var(--c-ink);font-weight:600;}
.cmp .yes{color:var(--c-mint);font-weight:700;}
.cmp .no{color:var(--c-ink-3);}
.cmp tbody tr:last-child td{border-bottom:0;}
.cmp .rec{position:relative;}
.cmp thead th.rec::after{
  content:"推荐";position:absolute;top:-1px;right:12px;font-size:11px;
  background:var(--c-lime);color:#22310a;border-radius:0 0 8px 8px;padding:2px 8px;font-weight:700;
}
.scroll-hint{display:none;font-size:13px;color:var(--c-ink-3);margin-top:10px;}

/* ---------- Update bar ---------- */
.update-bar{
  border-radius:var(--r-l);background:var(--grad-brand);color:#fff;
  padding:26px 32px;display:flex;align-items:center;gap:28px;flex-wrap:wrap;
  box-shadow:var(--sh-brand);
}
.update-bar h3{color:#fff;font-size:20px;margin-bottom:6px;}
.update-bar p{color:rgba(255,255,255,.9);font-size:14px;margin:0;}
.countdown{display:flex;align-items:center;gap:10px;margin-left:auto;}
.countdown .cellbox{
  min-width:60px;padding:8px 6px;border-radius:10px;background:rgba(255,255,255,.22);
  text-align:center;backdrop-filter:blur(2px);
}
.countdown .cellbox b{display:block;font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.2;color:#fff;}
.countdown .cellbox span{font-size:11px;color:rgba(255,255,255,.8);}
.update-bar .btn{background:#fff;color:var(--c-accent);box-shadow:none;}
.update-bar .btn:hover{background:#fff;color:var(--c-accent);transform:translateY(-2px);}

/* ---------- News cards ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-cover{position:relative;aspect-ratio:16/9;overflow:hidden;display:block;background:var(--c-surface-2);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.2,.7,.3,1);}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-tag{
  position:absolute;top:12px;left:12px;height:26px;padding:0 12px;border-radius:var(--pill);
  background:rgba(255,255,255,.94);color:var(--c-accent);font-size:12px;font-weight:600;
  display:inline-flex;align-items:center;
}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;}
.news-body h3 a{color:var(--c-ink);}
.news-body h3 a:hover{color:var(--c-primary);}
.news-body p{font-size:14px;line-height:1.75;color:var(--c-ink-2);margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-ink-3);padding-top:14px;border-top:1px solid var(--c-line);
}
.news-meta a{font-weight:600;}
.news-empty{
  grid-column:1/-1;text-align:center;padding:56px 20px;background:#fff;
  border:1px dashed var(--c-line);border-radius:var(--r-l);
}
.news-empty svg{margin:0 auto 14px;display:block;}
.news-empty p{color:var(--c-ink-3);margin-bottom:18px;}

/* ---------- Guide blocks ---------- */
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.guide-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease;
}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.guide-card .idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;background:var(--grad-brand);color:#fff;
  font-size:15px;font-weight:800;margin-bottom:16px;
}
.guide-card h3{font-size:18px;margin-bottom:10px;}
.guide-card p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;margin:0;}

/* ---------- Evidence ---------- */
.evidence{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.ev-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);
  padding:22px 20px;box-shadow:var(--sh-1);position:relative;overflow:hidden;
}
.ev-card::before{content:"";position:absolute;top:0;left:20px;width:48px;height:6px;border-radius:0 0 6px 6px;background:var(--grad-brand);}
.ev-card .big{font-size:30px;font-weight:800;color:var(--c-ink);font-variant-numeric:tabular-nums;line-height:1.15;margin-top:14px;}
.ev-card .big em{font-style:normal;font-size:14px;color:var(--c-accent);font-weight:600;margin-left:2px;}
.ev-card .desc{font-size:13.5px;color:var(--c-ink-2);margin-top:6px;line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:10px;max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:16px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;}
.faq-item.is-open{box-shadow:var(--sh-1);border-color:rgba(123,63,242,.35);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--c-ink);text-align:left;
}
.faq-q .arrow{
  flex:0 0 auto;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-accent);transition:transform .2s ease;font-size:16px;font-weight:700;
}
.faq-item.is-open .faq-q .arrow{transform:rotate(90deg);}
.faq-a{display:none;padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--c-ink-2);}
.faq-item.is-open .faq-a{display:block;}

/* ---------- Form ---------- */
.contact-wrap{
  background:var(--c-surface-2);border-radius:var(--r-l);padding:48px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
}
.contact-left h2{font-size:28px;margin-bottom:16px;}
.contact-left p{color:var(--c-ink-2);font-size:15.5px;}
.check-list{margin-top:22px;display:flex;flex-direction:column;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--c-ink-2);}
.check-list .tick{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:rgba(31,200,176,.16);
  color:var(--c-mint);display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;margin-top:3px;
}
.form-card{background:#fff;border-radius:var(--r-l);padding:32px;box-shadow:var(--sh-2);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--c-ink);}
.field .req{color:var(--c-primary);margin-left:2px;}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select,
.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:12px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-ink-3) 50%),linear-gradient(135deg,var(--c-ink-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(255,92,57,.18);
}
.field .hint{font-size:13px;color:var(--c-ink-3);margin-top:6px;}
.field .err{display:none;font-size:13px;color:#E4483C;margin-top:6px;}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:#E4483C;}
.field.has-error .err{display:block;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--c-ink-2);margin:6px 0 20px;line-height:1.7;}
.consent input{width:18px;height:18px;margin-top:3px;flex:0 0 auto;accent-color:var(--c-primary);}
.form-note{font-size:12.5px;color:var(--c-ink-3);margin-top:14px;margin-bottom:0;}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);margin-top:0;}
.site-footer::before{content:"";display:block;height:6px;background:var(--grad-brand);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-text small{color:rgba(255,255,255,.55);}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.02em;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin:0;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 34px;
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .tip{max-width:760px;line-height:1.75;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .hero-copy h1{font-size:40px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .evidence{grid-template-columns:repeat(2,1fr);}
  .guide-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-grid{min-height:auto;}
  .hero-copy,.hero-visual{flex:1 1 100%;max-width:100%;padding-right:0;}
  .hero-copy{padding-bottom:36px;}
  .hero-media{border-radius:24px;aspect-ratio:16/9;}
  .ladder{flex-direction:column;align-items:stretch;gap:0;padding-left:26px;position:relative;}
  .ladder::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:3px;border-radius:3px;background:var(--grad-brand);}
  .ladder-item{padding:0 0 20px 0;}
  .ladder-item .conn{display:none;}
  .ladder-item .ladder-card{min-height:0!important;}
  .ladder-item::before{content:"";position:absolute;left:-24px;top:26px;width:13px;height:13px;border-radius:50%;background:var(--c-lime);border:3px solid #fff;box-shadow:0 0 0 2px var(--c-line);}
  .contact-wrap{grid-template-columns:1fr;padding:32px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
  .scroll-hint{display:block;}
}
@media (max-width:767px){
  :root{--nav-h:56px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .hero-copy h1{font-size:30px;}
  .hero-sub{font-size:15.5px;}
  .hero-copy{padding:8px 0 28px;}
  .hero-media{aspect-ratio:16/10;}
  .hero-float{right:12px;bottom:12px;padding:12px 14px;min-width:160px;}
  .hero-float .v{font-size:15px;}
  .news-grid{grid-template-columns:1fr;}
  .guide-grid{grid-template-columns:1fr;}
  .evidence{grid-template-columns:1fr 1fr;}
  .update-bar{padding:22px;gap:18px;}
  .countdown{margin-left:0;width:100%;}
  .countdown .cellbox{flex:1 1 0;min-width:0;}
  .contact-wrap{padding:24px;}
  .form-card{padding:22px;}
  .section-head h2{font-size:22px;}
  .btn{height:46px;padding:0 22px;}
  .btn-block-sm{width:100%;}
}
@media (max-width:520px){
  .hero-copy h1{font-size:27px;}
  .hero-actions .btn{width:100%;}
  .evidence{grid-template-columns:1fr;}
  .stat-badge{flex:1 1 calc(50% - 7px);min-width:0;}
  .stat-badge .val{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:10px;}
}

/* roulang page: article */
:root{
  --c-bg:#FFF7F2;
  --c-surface:#FFFFFF;
  --c-surface-2:#FDEFE7;
  --c-ink:#1B1230;
  --c-ink-2:#4A3F63;
  --c-ink-3:#8A7F9C;
  --c-primary:#FF5C39;
  --c-primary-2:#FF8A3D;
  --c-accent:#7B3FF2;
  --c-accent-2:#B14BFF;
  --c-mint:#1FC8B0;
  --c-lime:#C6F24E;
  --c-line:#F0E1D8;
  --grad-brand:linear-gradient(118deg,#FF5C39 0%,#B14BFF 62%,#1FC8B0 100%);
  --grad-brand-soft:linear-gradient(102deg,#FF5C39 0%,#B14BFF 60%,#1FC8B0 100%);
  --sh-1:0 2px 8px rgba(27,18,48,.06);
  --sh-2:0 18px 40px -12px rgba(27,18,48,.18);
  --sh-brand:0 12px 28px -10px rgba(255,92,57,.45);
  --r-s:12px;
  --r-m:20px;
  --r-l:24px;
  --container:1200px;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:3px solid rgba(123,63,242,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.grid-x{display:flex;flex-wrap:wrap;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.cell{padding-left:12px;padding-right:12px;width:100%;}
@media (min-width:640px){
  .medium-6{width:50%;}
  .medium-12{width:100%;}
}
@media (min-width:1024px){
  .large-4{width:33.3333%;}
  .large-8{width:66.6666%;}
  .large-12{width:100%;}
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,247,242,.88);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:var(--grad-brand);
  opacity:.9;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:var(--nav-h);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--grad-brand);
  box-shadow:var(--sh-brand);
  position:relative;
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";
  position:absolute;inset:9px;
  border-radius:6px;
  background:rgba(255,255,255,.9);
  transform:rotate(45deg);
}
.brand-text{
  display:flex;flex-direction:column;line-height:1.1;
  font-size:17px;font-weight:800;letter-spacing:.2px;
}
.brand-text small{
  font-size:9px;font-weight:600;letter-spacing:1.4px;
  color:var(--c-ink-3);
  margin-top:3px;
}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--c-ink-2);
  padding:6px 0;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;left:0;bottom:0;
  height:2px;width:0;
  border-radius:2px;
  background:var(--grad-brand);
  transition:width .2s ease;
}
.nav-links a:hover{color:var(--c-ink);}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--c-ink);font-weight:600;}
.nav-links a.is-active::after{width:100%;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  color:var(--c-ink-2);
  transition:transform .2s ease,box-shadow .2s ease,color .2s ease;
}
.icon-btn:hover{transform:translateY(-2px);box-shadow:var(--sh-1);color:var(--c-primary);}
.nav-toggle{display:none;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,background .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad-brand);
  color:#fff;
  box-shadow:var(--sh-brand);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -12px rgba(255,92,57,.6);background:var(--grad-brand-soft);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:var(--c-surface);
  border:1.5px solid var(--c-accent);
  color:var(--c-accent);
}
.btn-ghost:hover{background:rgba(123,63,242,.06);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}

/* ---------- Breadcrumb ---------- */
.crumbs{
  padding-top:28px;
  font-size:13px;
  color:var(--c-ink-3);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
}
.crumbs a{color:var(--c-ink-2);transition:color .2s ease;}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .sep{color:var(--c-line);}
.crumbs .current{color:var(--c-ink-3);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- Article ---------- */
.article-wrap{padding:44px 0 0;}
.article-head{max-width:820px;margin:0 auto;padding:0 0 26px;}
.article-cat{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;
  color:var(--c-accent);
  background:rgba(123,63,242,.08);
  border-radius:999px;
  height:26px;padding:0 12px;
}
.article-head h1{
  margin-top:18px;
  font-size:38px;
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.2px;
  max-width:820px;
}
.article-meta{
  margin-top:18px;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:13px;color:var(--c-ink-3);
  font-variant-numeric:tabular-nums;
}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--c-line);display:inline-block;}
.title-bar{
  max-width:820px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 0;
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.title-bar .left{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:600;}
.title-bar .left::before{
  content:"";width:6px;height:22px;border-radius:3px;background:var(--grad-brand);display:block;
}
.title-bar .right{font-size:13px;color:var(--c-ink-3);font-variant-numeric:tabular-nums;}

.article-body{
  max-width:820px;margin:0 auto;
  padding:34px 0 0;
  font-size:17px;line-height:1.9;color:var(--c-ink);
}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;
  font-size:24px;line-height:1.4;font-weight:700;
  margin:40px 0 16px;
  padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--grad-brand);
}
.article-body h3{font-size:19px;font-weight:700;line-height:1.5;margin:30px 0 12px;}
.article-body a{color:var(--c-accent);border-bottom:1px solid rgba(123,63,242,.35);}
.article-body a:hover{color:var(--c-primary);border-bottom-color:rgba(255,92,57,.5);}
.article-body ul, .article-body ol{margin:0 0 20px;padding-left:4px;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:13px;width:7px;height:7px;border-radius:50%;background:var(--c-primary);
}
.article-body ol{counter-reset:olc;padding-left:0;}
.article-body ol li{position:relative;padding-left:34px;margin-bottom:10px;counter-increment:olc;}
.article-body ol li::before{
  content:counter(olc);
  position:absolute;left:0;top:5px;
  width:22px;height:22px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:#fff;background:var(--grad-brand);
}
.article-body blockquote{
  margin:24px 0;
  background:var(--c-surface-2);
  border-left:4px solid;
  border-image:var(--grad-brand) 1;
  border-radius:0 var(--r-s) var(--r-s) 0;
  padding:20px 22px;
  color:var(--c-ink-2);
  font-size:16px;
}
.article-body img{border-radius:16px;border:1px solid var(--c-line);margin:22px auto;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;}
.article-body th{
  background:var(--c-surface-2);text-align:left;font-weight:600;
  padding:14px 16px;border-bottom:1px solid var(--c-line);
}
.article-body td{padding:14px 16px;border-bottom:1px solid var(--c-line);color:var(--c-ink-2);}
.table-scroll{
  overflow-x:auto;margin:24px 0;border:1px solid var(--c-line);border-radius:var(--r-s);
  -webkit-overflow-scrolling:touch;
}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:34px 0;}

.empty-state{
  max-width:820px;margin:34px auto 0;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  padding:56px 28px;
  text-align:center;
  box-shadow:var(--sh-1);
}
.empty-state .ico{
  width:56px;height:56px;border-radius:50%;
  margin:0 auto 18px;
  background:var(--c-surface-2);
  display:flex;align-items:center;justify-content:center;
  color:var(--c-ink-3);
}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px;}
.empty-state p{color:var(--c-ink-2);font-size:15px;margin-bottom:22px;}

/* ---------- Related ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-size:28px;font-weight:800;line-height:1.25;}
.section-head .sub{font-size:14px;color:var(--c-ink-2);margin-top:8px;}
.section-head .more{font-size:14px;color:var(--c-accent);font-weight:600;white-space:nowrap;}
.section-head .more:hover{color:var(--c-primary);}
.card-grid{display:flex;flex-wrap:wrap;margin:-12px;}
.card-grid > .cell{padding:12px;}
.card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-badge{
  position:absolute;left:12px;top:12px;
  height:26px;padding:0 12px;border-radius:999px;
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:600;
  background:rgba(255,255,255,.94);
  color:var(--c-accent);
  box-shadow:var(--sh-1);
}
.card-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-body h3{font-size:17px;font-weight:600;line-height:1.55;margin-bottom:10px;}
.card-body p{font-size:14px;color:var(--c-ink-2);line-height:1.8;flex:1 1 auto;}
.card-meta{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-ink-3);
  font-variant-numeric:tabular-nums;
}
.card-meta .enter{color:var(--c-primary);font-weight:600;}

.back-row{
  margin-top:40px;padding-top:40px;border-top:1px solid var(--c-line);
  display:flex;justify-content:center;
}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  background:var(--c-ink);
  color:#fff;
  margin-top:40px;
  padding:64px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:6px;background:var(--grad-brand);
}
.footer-grid{display:flex;flex-wrap:wrap;gap:40px 24px;}
.footer-col{flex:1 1 240px;min-width:0;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:#fff;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-text small{color:rgba(255,255,255,.5);}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  font-size:14px;color:rgba(255,255,255,.72);
  display:inline-block;
  transition:color .2s ease,transform .2s ease;
}
.footer-col ul a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px 24px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom .tip{max-width:640px;line-height:1.7;}

/* ---------- Back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;
  width:48px;height:48px;border-radius:50%;
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-brand);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
  z-index:70;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{transform:translateY(-2px);}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .nav-links{gap:18px;}
  .nav-links a{font-size:14px;}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;
    top:var(--nav-h);left:0;right:0;
    flex-direction:column;align-items:flex-start;gap:0;
    background:var(--c-surface);
    border-bottom:1px solid var(--c-line);
    box-shadow:var(--sh-2);
    padding:8px 20px 18px;
    transform:translateY(-8px);
    opacity:0;visibility:hidden;
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
    max-height:calc(100vh - var(--nav-h));
    overflow-y:auto;
  }
  body.nav-open .nav-links{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-links a{width:100%;padding:14px 0;border-bottom:1px solid var(--c-line);font-size:15px;}
  .nav-links a::after{display:none;}
  .nav-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:40px;height:40px;border-radius:12px;
    border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink);
  }
}
@media (max-width:767px){
  :root{--nav-h:56px;}
  body{font-size:15px;}
  .header-actions .btn-sm{display:none;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .article-head h1{font-size:28px;}
  .title-bar{flex-direction:column;align-items:flex-start;gap:8px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .section-head h2{font-size:22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:16px;}
}
@media (max-width:520px){
  .brand-text{font-size:15px;}
  .card-grid{margin:-8px;}
  .card-grid > .cell{padding:8px;}
}

/* roulang page: category1 */
:root{
  --c-bg:#FFF7F2;
  --c-surface:#FFFFFF;
  --c-surface-2:#FDEFE7;
  --c-ink:#1B1230;
  --c-ink-2:#4A3F63;
  --c-ink-3:#8A7F9C;
  --c-primary:#FF5C39;
  --c-primary-2:#FF8A3D;
  --c-accent:#7B3FF2;
  --c-accent-2:#B14BFF;
  --c-mint:#1FC8B0;
  --c-lime:#C6F24E;
  --c-line:#F0E1D8;
  --grad-brand:linear-gradient(118deg,#FF5C39 0%,#B14BFF 62%,#1FC8B0 100%);
  --grad-brand-soft:linear-gradient(118deg,rgba(255,92,57,.14) 0%,rgba(177,75,255,.12) 62%,rgba(31,200,176,.14) 100%);
  --sh-1:0 2px 8px rgba(27,18,48,.06);
  --sh-2:0 18px 40px -12px rgba(27,18,48,.18);
  --sh-brand:0 12px 28px -10px rgba(255,92,57,.45);
  --r-sm:12px;
  --r-md:20px;
  --r-lg:24px;
  --r-pill:999px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;border-radius:var(--r-md)}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(123,63,242,.35);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,247,242,.88);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-brand);
  position:relative;flex:0 0 auto;box-shadow:var(--sh-brand);
}
.brand-mark::after{
  content:"";position:absolute;inset:9px 9px auto auto;
  width:10px;height:10px;border-radius:3px;background:rgba(255,255,255,.9);
  transform:rotate(45deg)
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-weight:800;font-size:16px;color:var(--c-ink)}
.brand-text small{font-size:10px;font-weight:600;letter-spacing:.16em;color:var(--c-ink-3)}
.nav-links{display:flex;align-items:center;gap:26px;flex:1 1 auto}
.nav-links a{
  position:relative;padding:6px 0;font-size:15px;color:var(--c-ink-2);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--grad-brand);transition:width .2s var(--ease);
}
.nav-links a:hover{color:var(--c-ink)}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{color:var(--c-ink);font-weight:600}
.nav-links a.is-active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:var(--c-surface);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{border-color:#E6D2C6;box-shadow:var(--sh-1);transform:translateY(-1px)}
.icon-btn svg{width:18px;height:18px;stroke:var(--c-ink-2);fill:none;stroke-width:1.8;stroke-linecap:round}
.btn-pill{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-size:14px;font-weight:600;
  box-shadow:var(--sh-brand);transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
}
.btn-pill:hover{transform:translateY(-2px);box-shadow:0 16px 32px -12px rgba(255,92,57,.55)}
.btn-pill:active{transform:translateY(0)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:var(--c-surface);cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;border:1.5px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-brand)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 36px -14px rgba(255,92,57,.6)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--c-surface);color:var(--c-accent);border-color:var(--c-accent)}
.btn-ghost:hover{background:rgba(123,63,242,.06);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--c-ink);border-color:transparent;box-shadow:var(--sh-1)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-accent);
}
.text-link:hover{color:var(--c-primary)}
.text-link::after{content:"→";transition:transform .2s var(--ease)}
.text-link:hover::after{transform:translateX(4px)}

/* ---------- Generic section ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:.08em;color:var(--c-accent);margin-bottom:14px;
}
.section-head .kicker::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--grad-brand);transform:rotate(45deg)}
.section-head h2{font-size:28px;margin-bottom:14px}
.section-head p{color:var(--c-ink-2);font-size:16px}
.section--tint{background:var(--c-surface-2)}
.section--dark{background:var(--c-ink);color:#fff}
.section--dark .section-head h2{color:#fff}
.section--dark .section-head p{color:rgba(255,255,255,.72)}
.section--dark .section-head .kicker{color:var(--c-lime)}

/* ---------- Hero ---------- */
.hero{padding:48px 0 72px;border-bottom:1px solid var(--c-line)}
.hero .grid-x{align-items:center}
.hero-copy{padding-right:8px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-surface);border:1px solid var(--c-line);
  font-size:13px;font-weight:600;color:var(--c-accent);margin-bottom:20px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--grad-brand);display:block}
.hero h1{font-size:44px;line-height:1.18;margin-bottom:18px}
.hero h1 .hl{
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--c-ink-2);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:14px}
.metric{
  background:var(--c-surface);border-radius:18px;padding:14px 18px;min-width:150px;
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
}
.metric b{display:block;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.2}
.metric span{font-size:13px;color:var(--c-ink-2)}
.metric:nth-child(1) b{color:var(--c-primary)}
.metric:nth-child(2) b{color:var(--c-accent)}
.metric:nth-child(3) b{color:var(--c-mint)}
.hero-visual{position:relative}
.hero-visual .shot{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--sh-2);
  aspect-ratio:16/10;background:var(--c-surface-2);
}
.hero-visual .shot img{width:100%;height:100%;object-fit:cover;border-radius:0}
.hero-visual .shot::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(140deg,rgba(255,92,57,.28) 0%,rgba(177,75,255,.24) 55%,rgba(31,200,176,.22) 100%);
}
.hero-badge{
  position:absolute;left:-14px;bottom:24px;background:rgba(255,255,255,.97);
  border-radius:18px;padding:14px 18px;box-shadow:var(--sh-2);border:1px solid var(--c-line);
  min-width:190px;
}
.hero-badge b{display:block;font-size:20px;font-weight:800;font-variant-numeric:tabular-nums}
.hero-badge span{font-size:12.5px;color:var(--c-ink-2)}

/* ---------- Cards ---------- */
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#E9D5C8}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--c-ink-2);font-size:15px}
.card-grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;margin-bottom:16px;
  background:var(--grad-brand-soft);border:1px solid var(--c-line);
  font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;color:var(--c-accent);
}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;background:rgba(123,63,242,.1);color:var(--c-accent);
}
.tag--mint{background:rgba(31,200,176,.14);color:#0E8F7D}
.tag--warm{background:rgba(255,92,57,.12);color:#D9411F}

/* ---------- Stairs ---------- */
.stairs{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:end}
.stair{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;display:flex;flex-direction:column;justify-content:flex-end;
  box-shadow:var(--sh-1);position:relative;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.stair:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.stair:nth-child(1){min-height:200px}
.stair:nth-child(2){min-height:240px}
.stair:nth-child(3){min-height:280px;border:2px solid var(--c-accent);box-shadow:var(--sh-2)}
.stair:nth-child(4){min-height:320px}
.stair .lvl{
  display:inline-flex;align-items:center;justify-content:center;width:44px;height:26px;border-radius:var(--r-pill);
  background:var(--c-surface-2);color:var(--c-ink-2);font-size:12.5px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-bottom:14px;border:1px solid var(--c-line);
}
.stair h3{font-size:18px;margin-bottom:8px}
.stair p{font-size:14px;color:var(--c-ink-2);margin-bottom:14px}
.stair .rec{
  position:absolute;top:-12px;right:18px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;box-shadow:var(--sh-brand);
}
.stair-connector{display:none}

/* ---------- Steps (dark) ---------- */
.steps{display:grid;gap:18px}
.step{
  display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:start;
  padding:22px;border-radius:var(--r-md);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  transition:background-color .2s var(--ease),transform .2s var(--ease);
}
.step:hover{background:rgba(255,255,255,.09);transform:translateX(4px)}
.step .idx{
  width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--grad-brand);color:#fff;font-weight:800;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;color:#fff;margin-bottom:6px}
.step p{font-size:15px;color:rgba(255,255,255,.72)}

/* ---------- Info lists ---------- */
.info-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1)}
.info-card h3{font-size:19px;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.info-card h3::before{content:"";width:6px;height:18px;border-radius:3px;background:var(--grad-brand)}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;padding:12px 10px;border-bottom:1px solid var(--c-line);
  font-size:15px;color:var(--c-ink-2);transition:background-color .2s var(--ease),transform .2s var(--ease);
}
.check-list li:last-child{border-bottom:none}
.check-list li:hover{background:#FFFBF8;transform:translateX(4px)}
.check-list li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:5px;border-radius:6px;
  background:rgba(31,200,176,.16);border:1.5px solid var(--c-mint);
}
.check-list strong{color:var(--c-ink);font-weight:600}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:10px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:16px;
  overflow:hidden;transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:none;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-ink);
}
.faq-q .arrow{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--c-surface-2);display:flex;align-items:center;justify-content:center;
  transition:transform .2s var(--ease);
}
.faq-q .arrow::before{content:"";width:7px;height:7px;border-right:2px solid var(--c-accent);border-bottom:2px solid var(--c-accent);transform:rotate(45deg);margin-top:-3px}
.faq-item.is-open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a p{padding:0 22px 22px;font-size:15px;color:var(--c-ink-2);line-height:1.9}
.faq-item.is-open .faq-a{max-height:420px}

/* ---------- CTA band ---------- */
.cta-band{
  border-radius:var(--r-lg);padding:44px;background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:0 24px 48px -20px rgba(177,75,255,.5);
}
.cta-band h2{font-size:26px;margin-bottom:8px;color:#fff}
.cta-band p{font-size:15px;color:rgba(255,255,255,.88);max-width:560px}
.cta-band .actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-light{color:var(--c-ink)}
.cta-band .btn-outline{background:transparent;border-color:rgba(255,255,255,.75);color:#fff}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}

/* ---------- Breadcrumb ---------- */
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-ink-3);padding:28px 0 0}
.crumb a{color:var(--c-ink-2)}
.crumb a:hover{color:var(--c-accent)}
.crumb .sep{color:#D8C7BC}
.crumb .now{color:var(--c-ink-3)}

/* ---------- Footer ---------- */
.site-footer{position:relative;background:var(--c-ink);color:rgba(255,255,255,.72);margin-top:96px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:6px;background:var(--grad-brand)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px;padding:64px 0 40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px}
.footer-brand .brand-text{color:#fff;font-size:15px}
.footer-brand .brand-text small{color:rgba(255,255,255,.5)}
.footer-col p{font-size:14px;line-height:1.9}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col ul a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 32px;
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .tip{max-width:620px;line-height:1.8}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .hero h1{font-size:36px}
  .hero-visual{margin-top:36px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .stairs{grid-template-columns:repeat(2,1fr);align-items:stretch}
  .stair{min-height:auto !important}
  .stair:nth-child(1),.stair:nth-child(2),.stair:nth-child(3),.stair:nth-child(4){min-height:200px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;top:56px;left:0;right:0;z-index:55;
    flex-direction:column;align-items:flex-start;gap:4px;
    background:#fff;border-bottom:1px solid var(--c-line);
    padding:14px 20px 20px;box-shadow:var(--sh-2);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-links a{width:100%;padding:12px 0;border-bottom:1px solid var(--c-line);font-size:15px}
  .nav-links a:last-child{border-bottom:none}
  .nav-links a::after{display:none}
  .nav-wrap{height:56px}
  .nav-toggle{display:inline-flex}
  .site-header .icon-btn{display:none}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .hero{padding:32px 0 56px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15.5px}
  .section-head h2{font-size:22px}
  .grid-3,.grid-2,.grid-4{grid-template-columns:1fr}
  .stairs{grid-template-columns:1fr}
  .stair{min-height:auto !important}
  .steps .step{grid-template-columns:44px 1fr;padding:18px;gap:14px}
  .step .idx{width:38px;height:38px;border-radius:12px;font-size:14px}
  .cta-band{padding:28px;flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:21px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px}
  .footer-bottom{flex-direction:column}
  .hero-badge{position:static;margin-top:16px;width:100%}
  .metric{flex:1 1 45%}
}
@media (max-width:520px){
  .hero h1{font-size:26px}
  .hero-actions .btn{width:100%}
  .metric{min-width:100%}
}

/* roulang page: category2 */
:root{
  --c-bg:#FFF7F2;--c-surface:#FFFFFF;--c-surface-2:#FDEFE7;
  --c-ink:#1B1230;--c-ink-2:#4A3F63;--c-ink-3:#8A7F9C;
  --c-primary:#FF5C39;--c-primary-2:#FF8A3D;--c-accent:#7B3FF2;--c-accent-2:#B14BFF;
  --c-mint:#1FC8B0;--c-lime:#C6F24E;--c-line:#F0E1D8;
  --grad-brand:linear-gradient(118deg,#FF5C39 0%,#B14BFF 62%,#1FC8B0 100%);
  --sh-1:0 2px 8px rgba(27,18,48,.06);
  --sh-2:0 18px 40px -12px rgba(27,18,48,.18);
  --sh-brand:0 12px 28px -10px rgba(255,92,57,.45);
  --r-sm:10px;--r-md:20px;--r-lg:24px;--r-pill:999px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:1px solid var(--c-line);border-radius:var(--r-md);}
a{color:var(--c-accent);text-decoration:none;transition:color .2s ease,background-color .2s ease,transform .2s ease;}
a:hover{color:var(--c-primary);}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(123,63,242,.35);border-radius:6px;
}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:800;letter-spacing:.2px;}
p{margin:0 0 18px;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{max-width:var(--container);margin:0 auto;padding:0 20px;}
.grad-text{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);border:0;
  font-size:15px;font-weight:600;cursor:pointer;line-height:1;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background-color .2s ease,color .2s ease,background-position .3s ease;
}
.btn-primary{background:var(--grad-brand);background-size:160% 160%;color:#fff;box-shadow:var(--sh-brand);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);background-position:100% 0;box-shadow:0 16px 32px -10px rgba(177,75,255,.5);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--c-accent);border:1.5px solid var(--c-accent);}
.btn-ghost:hover{background:rgba(123,63,242,.06);color:var(--c-accent);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.link-more{font-size:14px;font-weight:600;color:var(--c-accent);}
.link-more:hover{color:var(--c-primary);}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-soft{background:rgba(123,63,242,.1);color:var(--c-accent);}
.badge-mint{background:rgba(31,200,176,.14);color:#0E8C7B;}
.badge-lime{background:rgba(198,242,78,.32);color:#5B6B10;}
.badge-data{background:#fff;color:var(--c-ink);border:1px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-brand);
  background-origin:border-box;background-clip:padding-box,border-box;}
.badge-line{background:#fff;color:var(--c-ink-2);border:1px solid var(--c-line);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,247,242,.88);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{width:30px;height:30px;border-radius:10px;background:var(--grad-brand);position:relative;flex:0 0 auto;}
.brand-mark::after{content:"";position:absolute;inset:9px;border-radius:4px;background:#fff;opacity:.9;}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:800;letter-spacing:.4px;}
.brand-text small{font-size:9px;font-weight:600;letter-spacing:1.6px;color:var(--c-ink-3);}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-links a{
  position:relative;padding:9px 12px;font-size:14.5px;color:var(--c-ink-2);border-radius:8px;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-links a:hover{color:var(--c-ink);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-ink);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--c-ink-2);
  transition:box-shadow .2s ease,transform .2s ease,color .2s ease;
}
.icon-btn:hover{color:var(--c-primary);box-shadow:var(--sh-1);transform:translateY(-1px);}
.icon-btn svg{width:18px;height:18px;}
.nav-toggle{display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);background:#fff;cursor:pointer;padding:0;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);margin:4px auto;border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-panel{display:none;border-top:1px solid var(--c-line);background:var(--c-surface);}
.mobile-panel.is-open{display:block;}
.mobile-panel a{display:block;padding:15px 20px;font-size:15px;color:var(--c-ink-2);border-bottom:1px solid var(--c-line);}
.mobile-panel a.is-active{color:var(--c-ink);font-weight:600;background:var(--c-surface-2);}

/* ============ 页面标题带 ============ */
.page-hero{padding:56px 0 40px;background:var(--c-bg);}
.crumb{font-size:13px;color:var(--c-ink-3);margin-bottom:20px;}
.crumb a{color:var(--c-ink-2);}
.crumb span.sep{margin:0 8px;color:var(--c-line);}
.page-hero h1{font-size:40px;max-width:900px;}
.page-hero .lede{margin-top:18px;max-width:720px;font-size:17px;color:var(--c-ink-2);}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.grad-rule{width:64px;height:6px;border-radius:6px;background:var(--grad-brand);margin-bottom:22px;}

/* ============ 通用板块 ============ */
.section{padding:64px 0;}
.section-alt{background:var(--c-surface-2);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-size:28px;}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--c-ink-2);max-width:640px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-accent);margin-bottom:12px;}
.eyebrow::before{content:"";width:20px;height:6px;border-radius:6px;background:var(--grad-brand);}

/* ============ 栅格兜底（兼容 Foundation 类名） ============ */
.grid-x{display:flex;flex-wrap:wrap;}
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.cell{width:100%;}
@media screen and (min-width:640px){
  .cell.medium-6{width:50%;}
}
@media screen and (min-width:1024px){
  .cell.large-4{width:33.3333%;}
  .cell.large-6{width:50%;}
}

/* ============ 双栏布局 ============ */
.layout{display:flex;flex-wrap:wrap;gap:40px;align-items:flex-start;}
.sidebar-col{width:100%;}
.content-col{width:100%;min-width:0;}
@media screen and (min-width:1024px){
  .sidebar-col{flex:0 0 340px;max-width:340px;}
  .content-col{flex:1 1 0;min-width:0;}
}
.sidebar-sticky{display:flex;flex-direction:column;gap:20px;}
@media screen and (min-width:1024px){
  .sidebar-sticky{position:sticky;top:96px;}
}

/* ============ 卡片 ============ */
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.card h3{font-size:17px;margin-bottom:10px;}
.card p{margin:0;font-size:14.5px;color:var(--c-ink-2);line-height:1.8;}
.card-title-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;}

/* 目录列表 */
.toc-card h3{font-size:15px;letter-spacing:.5px;color:var(--c-ink-2);margin-bottom:12px;}
.toc-list li{border-bottom:1px solid var(--c-line);}
.toc-list li:last-child{border-bottom:0;}
.toc-list a{
  display:flex;align-items:center;gap:10px;padding:12px 4px;font-size:14.5px;color:var(--c-ink-2);
  transition:background-color .2s ease,transform .2s ease,color .2s ease;
}
.toc-list a::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--grad-brand);flex:0 0 auto;}
.toc-list a:hover{background:#FFFBF8;transform:translateX(4px);color:var(--c-ink);}

/* 要点列表 */
.point-list li{display:flex;gap:10px;padding:12px 0;border-bottom:1px solid var(--c-line);font-size:14.5px;color:var(--c-ink-2);}
.point-list li:last-child{border-bottom:0;}
.point-list .tick{
  flex:0 0 auto;width:18px;height:18px;margin-top:6px;border-radius:50%;
  background:rgba(31,200,176,.16);color:#0E8C7B;font-size:11px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.cta-card{background:var(--c-ink);border-color:var(--c-ink);color:#fff;}
.cta-card h3{color:#fff;}
.cta-card p{color:rgba(255,255,255,.75);margin-bottom:16px;}

/* ============ 正文区块 ============ */
.content-block{margin-bottom:44px;}
.content-block:last-child{margin-bottom:0;}
.content-block h2{
  font-size:28px;margin-bottom:16px;padding-left:14px;position:relative;
}
.content-block h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad-brand);
}
.content-block h3{font-size:20px;margin:26px 0 12px;color:var(--c-ink);}
.content-block p{font-size:16px;color:var(--c-ink-2);}
.content-block ul.dot{padding-left:2px;margin:0 0 18px;}
.content-block ul.dot li{position:relative;padding-left:20px;margin-bottom:10px;font-size:15.5px;color:var(--c-ink-2);}
.content-block ul.dot li::before{content:"";position:absolute;left:4px;top:12px;width:7px;height:7px;border-radius:50%;background:var(--c-primary);}

.callout{
  background:var(--c-surface-2);border-left:4px solid var(--c-accent);border-radius:20px;
  padding:20px 22px;margin:26px 0;font-size:15px;color:var(--c-ink-2);
}
.callout strong{color:var(--c-ink);}

/* 数据卡 */
.kpi-row{display:flex;flex-wrap:wrap;gap:14px;margin:22px 0 6px;}
.kpi{
  flex:1 1 180px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:18px 20px;box-shadow:var(--sh-1);
}
.kpi .num{font-size:26px;font-weight:800;line-height:1.1;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}
.kpi .lbl{font-size:13px;color:var(--c-ink-3);margin-top:6px;}

/* 步骤 */
.step-list{counter-reset:step;margin-top:8px;}
.step-list li{
  position:relative;padding:16px 0 16px 58px;border-bottom:1px dashed var(--c-line);
}
.step-list li:last-child{border-bottom:0;}
.step-list li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:14px;width:38px;height:38px;border-radius:12px;
  background:var(--c-surface-2);color:var(--c-accent);font-size:14px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.step-list .st-title{display:block;font-size:16px;font-weight:600;color:var(--c-ink);margin-bottom:4px;}
.step-list .st-desc{font-size:14.5px;color:var(--c-ink-2);}

/* 记录卡组 */
.record-grid{display:flex;flex-wrap:wrap;gap:20px;margin-top:8px;}
.record-item{
  flex:1 1 260px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh-1);transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease;
}
.record-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.record-item .meta{display:flex;align-items:center;gap:10px;margin-bottom:12px;font-size:13px;color:var(--c-ink-3);}
.record-item h3{font-size:16px;margin-bottom:8px;}
.record-item p{margin:0;font-size:14.5px;color:var(--c-ink-2);}

.media-16x9{position:relative;padding-top:56.25%;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);margin:24px 0;background:var(--c-surface-2);}
.media-16x9 img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border:0;border-radius:0;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:16px;
  box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item:hover{box-shadow:var(--sh-2);border-color:#E8D6CA;}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 56px 19px 22px;position:relative;
  font-size:17px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:24px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(225deg);}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--c-ink-2);line-height:1.9;}
.faq-body p{margin:0 0 12px;}
.faq-body p:last-child{margin-bottom:0;}

/* ============ CTA 条 ============ */
.cta-bar{
  border-radius:var(--r-lg);background:var(--grad-brand);color:#fff;
  padding:32px 30px;display:flex;flex-wrap:wrap;align-items:center;gap:20px;
  box-shadow:0 16px 36px -14px rgba(177,75,255,.5);
}
.cta-bar h2{font-size:24px;color:#fff;flex:1 1 320px;}
.cta-bar p{margin:8px 0 0;font-size:15px;color:rgba(255,255,255,.88);flex:1 1 100%;}
.cta-bar .btn-ghost{background:#fff;border-color:#fff;color:var(--c-accent);flex:0 0 auto;}
.cta-bar .btn-ghost:hover{background:rgba(255,255,255,.88);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);border-top:6px solid transparent;border-image:var(--grad-brand) 1;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px;padding:56px 0 36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:28px;height:28px;border-radius:9px;}
.footer-brand .brand-text{color:#fff;font-size:16px;}
.footer-brand .brand-text small{color:rgba(255,255,255,.5);}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);margin:0;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col ul a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 32px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .tip{max-width:720px;}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .page-hero h1{font-size:34px;}
  .content-block h2{font-size:26px;}
}
@media screen and (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .layout{gap:28px;}
  .sidebar-sticky{position:static;top:auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:56px 0;}
}
@media screen and (max-width:767px){
  .header-inner{height:56px;gap:12px;}
  .brand-text small{display:none;}
  .header-actions .btn{display:none;}
  .page-hero{padding:36px 0 28px;}
  .page-hero h1{font-size:28px;}
  .page-hero .lede{font-size:15.5px;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .section-head h2{font-size:22px;}
  .content-block h2{font-size:22px;}
  .content-block h3{font-size:18px;}
  .content-block p{font-size:15px;}
  .cta-bar h2{font-size:20px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media screen and (max-width:519px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .card,.record-item{padding:20px;}
  .page-hero h1{font-size:25px;}
  .hero-tags .badge{font-size:12px;}
}

/* roulang page: category3 */
:root{
  --c-bg:#FFF7F2;
  --c-surface:#FFFFFF;
  --c-surface-2:#FDEFE7;
  --c-ink:#1B1230;
  --c-ink-2:#4A3F63;
  --c-ink-3:#8A7F9C;
  --c-primary:#FF5C39;
  --c-primary-2:#FF8A3D;
  --c-accent:#7B3FF2;
  --c-accent-2:#B14BFF;
  --c-mint:#1FC8B0;
  --c-lime:#C6F24E;
  --c-line:#F0E1D8;
  --grad-brand:linear-gradient(118deg,#FF5C39 0%,#B14BFF 62%,#1FC8B0 100%);
  --r-xs:8px;
  --r-sm:12px;
  --r-md:20px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(27,18,48,.06);
  --sh-2:0 18px 40px -12px rgba(27,18,48,.18);
  --sh-brand:0 12px 28px -10px rgba(255,92,57,.45);
  --sec-pad:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-accent);text-decoration:none;transition:color .2s ease,background-color .2s ease,transform .2s ease;}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(123,63,242,.35);outline-offset:2px;border-radius:8px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}
.section{padding:var(--sec-pad) 0;}
.section-tight{padding:56px 0;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,247,242,.9);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
}
.site-header::after{
  content:"";
  display:block;
  height:2px;
  background:var(--grad-brand);
  opacity:.85;
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:68px;
  gap:18px;
}
.nav-left{display:flex;align-items:center;gap:34px;min-width:0;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--grad-brand);
  box-shadow:var(--sh-brand);
  position:relative;
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";
  position:absolute;inset:9px;
  border-radius:4px;
  background:#fff;
  transform:rotate(45deg);
}
.brand-text{
  font-size:19px;font-weight:800;letter-spacing:.2px;line-height:1.1;
  display:inline-flex;flex-direction:column;
}
.brand-text small{
  font-size:10px;font-weight:600;letter-spacing:1.6px;color:var(--c-ink-3);
  margin-top:3px;
}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  color:var(--c-ink-2);
  border-radius:10px;
}
.nav-links a::after{
  content:"";
  position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--grad-brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s ease;
  border-radius:2px;
}
.nav-links a:hover{color:var(--c-ink);background:rgba(255,92,57,.06);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-ink);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:14px;}
.ghost-link{
  font-size:14px;color:var(--c-ink-2);
  padding:8px 4px;border-radius:8px;
}
.ghost-link:hover{color:var(--c-accent);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--c-line);
  border-radius:12px;
  background:var(--c-surface);
  align-items:center;justify-content:center;
  cursor:pointer;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:rgba(255,247,242,.98);
  padding:14px 20px 22px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:block;
  padding:13px 4px;
  font-size:16px;
  color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.nav-drawer a:last-child{border-bottom:0;}
.nav-drawer a.is-active{color:var(--c-primary);font-weight:600;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  border:0;
  cursor:pointer;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background-color .2s ease,background .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad-brand);
  color:#fff;
  box-shadow:var(--sh-brand);
}
.btn-primary:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 16px 34px -10px rgba(255,92,57,.55);
}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{
  background:var(--c-surface);
  color:var(--c-accent);
  border:1.5px solid var(--c-accent);
}
.btn-secondary:hover{background:rgba(123,63,242,.06);color:var(--c-accent);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;box-shadow:none;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-accent);
}
.text-link::after{content:"→";transition:transform .2s ease;}
.text-link:hover::after{transform:translateX(3px);}

/* ============ 通用标题 ============ */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  font-size:13px;font-weight:600;color:var(--c-ink-2);
  box-shadow:var(--sh-1);
}
.eyebrow::before{
  content:"";width:8px;height:8px;border-radius:3px;background:var(--grad-brand);
}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{
  font-size:28px;font-weight:800;line-height:1.3;letter-spacing:.2px;
  margin:16px 0 12px;
}
.sec-head p{font-size:16px;color:var(--c-ink-2);}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.grad-text{
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:56px 0 64px;
  background:linear-gradient(180deg,#FFF3EA 0%,#FFF7F2 100%);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  right:-80px;top:-60px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(177,75,255,.16),rgba(31,200,176,0) 70%);
  pointer-events:none;
}
.hero-grid{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:40px;
  position:relative;
  z-index:1;
}
.hero-main{max-width:680px;}
.crumbs{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--c-ink-3);
  margin-bottom:20px;
}
.crumbs a{color:var(--c-ink-3);}
.crumbs a:hover{color:var(--c-accent);}
.crumbs .sep{color:var(--c-line);}
.crumbs .current{color:var(--c-ink-3);}
.hero h1{
  font-size:40px;
  font-weight:800;
  line-height:1.24;
  letter-spacing:.2px;
  margin:0 0 18px;
}
.hero-lead{
  font-size:17px;
  color:var(--c-ink-2);
  max-width:620px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-metrics{
  display:flex;gap:16px;
  flex:0 0 auto;
}
.metric-pill{
  min-width:168px;
  background:var(--c-surface);
  border-radius:var(--r-md);
  padding:20px 22px;
  box-shadow:var(--sh-2);
  border:1px solid var(--c-line);
  position:relative;
  overflow:hidden;
}
.metric-pill::before{
  content:"";
  position:absolute;left:0;top:0;right:0;height:6px;
  background:var(--grad-brand);
}
.metric-num{
  font-size:32px;
  font-weight:800;
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  color:var(--c-ink);
  display:block;
  margin-bottom:6px;
}
.metric-label{font-size:13px;color:var(--c-ink-2);line-height:1.5;}

/* ============ 徽章矩阵 ============ */
.metric-matrix{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.metric-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:26px 22px 24px;
  box-shadow:var(--sh-1);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease;
  position:relative;
  overflow:hidden;
}
.metric-card::before{
  content:"";
  position:absolute;left:22px;top:0;width:44px;height:6px;
  background:var(--grad-brand);
  border-radius:0 0 6px 6px;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.metric-card .idx{
  font-size:32px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  line-height:1.1;
  display:block;
  margin:14px 0 10px;
}
.metric-card h3{font-size:16px;font-weight:700;margin-bottom:8px;}
.metric-card p{font-size:14px;color:var(--c-ink-2);line-height:1.75;}

/* ============ 模块速览卡片 ============ */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.info-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease;
  display:flex;
  flex-direction:column;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--c-surface-2);
  border-bottom:1px solid var(--c-line);
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.info-card:hover .thumb img{transform:scale(1.03);}
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  font-size:13px;font-weight:600;
  background:rgba(123,63,242,.1);
  color:var(--c-accent);
}
.tag.is-mint{background:rgba(31,200,176,.14);color:#0E8E7C;}
.tag.is-primary{background:rgba(255,92,57,.12);color:#D93F1F;}
.thumb .tag{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--c-accent);box-shadow:var(--sh-1);}
.info-card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.info-card-body h3{font-size:17px;font-weight:700;line-height:1.5;}
.info-card-body p{font-size:14px;color:var(--c-ink-2);line-height:1.8;}
.info-card-body .text-link{margin-top:auto;}

/* ============ 对比卡 ============ */
.compare-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:stretch;
}
.compare-card{
  background:var(--c-surface);
  border-radius:var(--r-lg);
  border:1px solid var(--c-line);
  padding:30px 26px 28px;
  box-shadow:var(--sh-1);
  display:flex;
  flex-direction:column;
  gap:16px;
  position:relative;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.compare-card.is-featured{
  border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-brand);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  box-shadow:var(--sh-2);
  transform:translateY(-8px);
}
.compare-card.is-featured:hover{transform:translateY(-12px);}
.badge-corner{
  position:absolute;right:18px;top:-13px;
  height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--grad-brand);
  color:#fff;font-size:12px;font-weight:600;
  display:inline-flex;align-items:center;
}
.compare-card h3{font-size:19px;font-weight:700;}
.compare-card .sub{font-size:13px;color:var(--c-ink-3);}
.compare-list{display:flex;flex-direction:column;gap:0;margin-top:4px;}
.compare-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--c-ink-2);
  padding:11px 0;
  border-bottom:1px dashed var(--c-line);
  line-height:1.7;
}
.compare-list li:last-child{border-bottom:0;}
.tick{
  flex:0 0 auto;
  width:18px;height:18px;
  border-radius:50%;
  background:rgba(31,200,176,.16);
  color:#0E8E7C;
  font-size:12px;
  display:inline-flex;align-items:center;justify-content:center;
  margin-top:4px;
  font-weight:700;
}
.tick.is-off{background:rgba(138,127,156,.16);color:var(--c-ink-3);}
.compare-card .btn{margin-top:auto;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:10px;max-width:900px;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:16px;
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item[open]{border-color:rgba(255,92,57,.35);box-shadow:var(--sh-2);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 56px 20px 22px;
  font-size:17px;
  font-weight:600;
  color:var(--c-ink);
  position:relative;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-item summary::after{
  content:"";
  position:absolute;right:24px;top:50%;
  width:10px;height:10px;
  border-right:2px solid var(--c-accent);
  border-bottom:2px solid var(--c-accent);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-answer{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--c-ink-2);
}

/* ============ 表单 ============ */
.feedback{
  background:var(--c-surface-2);
  border-radius:var(--r-lg);
  padding:44px 40px;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:40px;
  align-items:start;
}
.feedback-intro h2{font-size:26px;font-weight:800;line-height:1.35;margin-bottom:14px;}
.feedback-intro p{font-size:15px;color:var(--c-ink-2);margin-bottom:22px;}
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--c-ink-2);line-height:1.75;
}
.check-list .dot{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:rgba(198,242,78,.5);
  color:#3E5200;
  font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  margin-top:5px;
}
.form-card{
  background:var(--c-surface);
  border-radius:var(--r-lg);
  padding:30px 28px 32px;
  box-shadow:var(--sh-2);
  border:1px solid var(--c-line);
}
.form-row{margin-bottom:18px;}
.form-row label{
  display:block;
  font-size:14px;
  font-weight:600;
  margin-bottom:8px;
  color:var(--c-ink);
}
.form-row input[type="text"],
.form-row input[type="tel"],
.form-row input[type="email"],
.form-row select,
.form-row textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border-radius:var(--r-sm);
  border:1px solid var(--c-line);
  background:#FFFDFB;
  color:var(--c-ink);
  font-size:15px;
  font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row textarea{min-height:112px;resize:vertical;line-height:1.7;}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(255,92,57,.18);
}
.consent{
  display:flex;gap:10px;align-items:flex-start;
  font-size:13px;color:var(--c-ink-2);line-height:1.7;margin:4px 0 20px;
}
.consent input{margin-top:4px;width:16px;height:16px;accent-color:var(--c-primary);}
.form-hint{font-size:13px;color:var(--c-ink-3);margin-top:12px;}

/* ============ CTA 条 ============ */
.cta-band{
  border-radius:var(--r-lg);
  background:var(--grad-brand);
  padding:34px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  box-shadow:var(--sh-2);
}
.cta-band h2{font-size:24px;font-weight:800;color:#fff;line-height:1.35;margin-bottom:6px;}
.cta-band p{font-size:14px;color:rgba(255,255,255,.88);}
.cta-band .btn{
  background:#fff;
  color:var(--c-accent);
  box-shadow:0 12px 28px -12px rgba(27,18,48,.45);
}
.cta-band .btn:hover{color:var(--c-primary);}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--c-ink);
  color:rgba(255,255,255,.72);
  padding:72px 0 30px;
  margin-top:20px;
}
.site-footer::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:6px;
  background:var(--grad-brand);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:30px;height:30px;box-shadow:none;}
.footer-brand .brand-mark::after{inset:8px;}
.brand-text{color:#fff;font-size:17px;font-weight:800;line-height:1.15;display:inline-flex;flex-direction:column;}
.brand-text small{font-size:10px;font-weight:600;letter-spacing:1.6px;color:rgba(255,255,255,.5);margin-top:4px;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);}
.site-footer h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px;}
.site-footer ul{display:flex;flex-direction:column;gap:2px;}
.site-footer ul a{
  display:inline-block;
  padding:8px 0;
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color .2s ease,transform .2s ease;
}
.site-footer ul a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-bottom .tip{max-width:640px;line-height:1.7;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .metric-matrix{grid-template-columns:repeat(2,1fr);}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .compare-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:1023px){
  :root{--sec-pad:64px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:44px 0 52px;}
  .hero-grid{flex-direction:column;align-items:flex-start;gap:32px;}
  .hero h1{font-size:32px;}
  .hero-metrics{width:100%;}
  .metric-pill{flex:1;}
  .feedback{grid-template-columns:1fr;padding:34px 26px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 28px;}
}
@media (max-width:767px){
  :root{--sec-pad:56px;}
  .container{padding:0 18px;}
  .nav-wrap{min-height:56px;}
  .brand-text{font-size:16px;}
  .brand-text small{display:none;}
  .ghost-link{display:none;}
  .hero h1{font-size:28px;}
  .hero-lead{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{flex-direction:column;gap:12px;}
  .metric-pill{width:100%;}
  .metric-matrix{grid-template-columns:repeat(2,1fr);gap:16px;}
  .card-grid{grid-template-columns:1fr;}
  .compare-grid{grid-template-columns:1fr;}
  .compare-card.is-featured{transform:none;}
  .compare-card.is-featured:hover{transform:translateY(-4px);}
  .sec-head h2{font-size:22px;}
  .faq-item summary{font-size:16px;padding:18px 50px 18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:519px){
  .metric-matrix{grid-template-columns:1fr;}
  .form-card{padding:24px 18px 26px;}
  .cta-band h2{font-size:20px;}
}

/* roulang page: category4 */
:root{
  --c-bg:#FFF7F2;
  --c-surface:#FFFFFF;
  --c-surface-2:#FDEFE7;
  --c-ink:#1B1230;
  --c-ink-2:#4A3F63;
  --c-ink-3:#8A7F9C;
  --c-primary:#FF5C39;
  --c-primary-2:#FF8A3D;
  --c-accent:#7B3FF2;
  --c-accent-2:#B14BFF;
  --c-mint:#1FC8B0;
  --c-lime:#C6F24E;
  --c-line:#F0E1D8;
  --grad-brand:linear-gradient(118deg,#FF5C39 0%,#B14BFF 62%,#1FC8B0 100%);
  --sh-1:0 2px 8px rgba(27,18,48,.06);
  --sh-2:0 18px 40px -12px rgba(27,18,48,.18);
  --sh-brand:0 12px 28px -10px rgba(255,92,57,.45);
  --r-sm:12px;
  --r-md:20px;
  --r-lg:24px;
  --r-pill:999px;
  --sec-pad:88px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:0;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .25s ease,background .25s ease,color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad-brand);
  color:#fff;
  box-shadow:var(--sh-brand);
}
.btn-primary:hover{
  transform:translateY(-2px);
  background:linear-gradient(102deg,#FF5C39 0%,#B14BFF 62%,#1FC8B0 100%);
  box-shadow:0 18px 34px -12px rgba(255,92,57,.6);
}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{
  background:#fff;
  color:var(--c-accent);
  border:1.5px solid var(--c-accent);
}
.btn-secondary:hover{
  background:rgba(123,63,242,.06);
  transform:translateY(-2px);
}
.btn-secondary:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn:focus-visible,.icon-btn:focus-visible,.menu-toggle:focus-visible,.faq-q:focus-visible{
  outline:3px solid rgba(123,63,242,.35);
  outline-offset:2px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,247,242,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
}
.site-header::after{
  content:"";
  display:block;
  height:2px;
  background:var(--grad-brand);
  opacity:.9;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:68px;
}
.header-left,.header-right{
  display:flex;
  align-items:center;
  gap:14px;
  min-width:0;
}
.header-left{gap:26px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--grad-brand);
  position:relative;
  flex-shrink:0;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:9px;
  border-radius:4px;
  background:rgba(255,255,255,.92);
  transform:rotate(45deg);
}
.brand-text{
  display:flex;
  flex-direction:column;
  font-size:17px;
  font-weight:800;
  letter-spacing:.2px;
  line-height:1.2;
  color:var(--c-ink);
}
.brand-text small{
  font-size:9.5px;
  font-weight:600;
  letter-spacing:1.6px;
  color:var(--c-ink-3);
}
.nav-links{display:flex;align-items:center;gap:22px;}
.nav-links a{
  position:relative;
  font-size:14.5px;
  color:var(--c-ink-2);
  padding:6px 0;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  border-radius:2px;
  background:var(--grad-brand);
  transition:width .22s cubic-bezier(.2,.7,.3,1);
}
.nav-links a:hover{color:var(--c-ink);}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--c-ink);font-weight:600;}
.nav-links a.is-active::after{width:100%;}
.icon-btn{
  height:40px;
  padding:0 16px;
  display:inline-flex;
  align-items:center;
  gap:7px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-ink-2);
  font-size:14px;
  transition:border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.icon-btn:hover{border-color:var(--c-accent);color:var(--c-accent);box-shadow:var(--sh-1);}
.icon-btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--c-line);
  background:#fff;
  padding:0;
  align-items:center;
  justify-content:center;
}
.menu-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--c-ink);
  border-radius:2px;
  position:relative;
}
.menu-toggle span::before,
.menu-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;height:2px;
  background:var(--c-ink);
  border-radius:2px;
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:rgba(255,247,242,.98);
  padding:10px 0 18px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;
  padding:13px 0;
  font-size:15px;
  color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.mobile-drawer a:last-child{border-bottom:0;}
.mobile-drawer a.is-active{color:var(--c-accent);font-weight:600;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  padding-top:28px;
  font-size:13px;
  color:var(--c-ink-3);
}
.breadcrumb a{color:var(--c-ink-2);}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb .sep{margin:0 8px;color:var(--c-line);}
.breadcrumb .current{color:var(--c-ink-3);}

/* ---------- 标题带 Hero ---------- */
.page-hero{
  padding:24px 0 0;
}
.hero-band{
  position:relative;
  padding:44px 0 48px;
  border-bottom:1px solid var(--c-line);
}
.hero-band::before{
  content:"";
  position:absolute;
  top:0;left:20px;
  width:56px;height:6px;
  border-radius:6px;
  background:var(--grad-brand);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-brand);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  font-size:13px;
  font-weight:600;
  color:var(--c-accent);
  margin-bottom:18px;
}
.page-hero h1{
  font-size:40px;
  font-weight:800;
  line-height:1.22;
  letter-spacing:-.4px;
  max-width:880px;
}
.page-hero h1 em{
  font-style:normal;
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  margin-top:18px;
  max-width:760px;
  font-size:17px;
  color:var(--c-ink-2);
  line-height:1.8;
}
.hero-actions{
  margin-top:28px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.hero-stats{
  margin-top:34px;
  display:flex;
  flex-wrap:wrap;
  gap:16px;
}
.stat-chip{
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 20px;
  background:#fff;
  border-radius:var(--r-md);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.stat-chip .num{
  font-size:26px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  line-height:1;
}
.stat-chip .lbl{
  font-size:13px;
  color:var(--c-ink-2);
  line-height:1.5;
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-pad) 0;}
.section-alt{background:var(--c-surface-2);}
.section-head{max-width:780px;margin-bottom:40px;}
.section-head .tag{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.6px;
  color:var(--c-primary);
  margin-bottom:12px;
}
.section-head h2{
  font-size:28px;
  font-weight:800;
  line-height:1.3;
  letter-spacing:-.2px;
}
.section-head p{
  margin-top:14px;
  color:var(--c-ink-2);
  font-size:16px;
}

/* ---------- 图文自查区 ---------- */
.split-check{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:48px;
  align-items:center;
}
.figure-card{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
  background:#fff;
}
.figure-card img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.figure-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(140deg,rgba(255,92,57,.24),rgba(177,75,255,.20) 60%,rgba(31,200,176,.18));
  pointer-events:none;
}
.figure-badge{
  position:absolute;
  left:20px;
  bottom:20px;
  right:20px;
  background:rgba(255,255,255,.97);
  border-radius:var(--r-md);
  padding:16px 18px;
  box-shadow:var(--sh-2);
  display:flex;
  align-items:center;
  gap:14px;
  z-index:2;
}
.figure-badge .dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--c-mint);
  flex-shrink:0;
  box-shadow:0 0 0 5px rgba(31,200,176,.16);
}
.figure-badge p{font-size:13.5px;color:var(--c-ink-2);line-height:1.6;}

.check-list{display:flex;flex-direction:column;gap:18px;}
.check-item{
  display:flex;
  gap:18px;
  padding:22px 24px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease;
}
.check-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.check-index{
  flex-shrink:0;
  width:38px;height:38px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-surface-2);
  color:var(--c-primary);
  font-weight:800;
  font-size:15px;
  font-variant-numeric:tabular-nums;
}
.check-item h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.check-item p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-group-label{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  font-weight:700;
  color:var(--c-ink);
  margin-bottom:22px;
}
.faq-group-label::before{
  content:"";
  width:6px;height:22px;
  border-radius:6px;
  background:var(--grad-brand);
}
.faq-list{display:flex;flex-direction:column;gap:10px;}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:16px;
  overflow:hidden;
  transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item:hover{box-shadow:var(--sh-1);}
.faq-item.is-open{border-color:rgba(123,63,242,.32);box-shadow:var(--sh-2);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--c-ink);
  line-height:1.6;
}
.faq-q .arrow{
  flex-shrink:0;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;
  transition:transform .2s ease,background .2s ease,border-color .2s ease;
}
.faq-q .arrow svg{width:12px;height:12px;stroke:var(--c-ink-2);fill:none;stroke-width:2.2;}
.faq-item.is-open .arrow{transform:rotate(180deg);background:var(--c-surface-2);border-color:transparent;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s cubic-bezier(.2,.7,.3,1);
}
.faq-a-inner{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--c-ink-2);
}

/* ---------- 时间线 ---------- */
.timeline{
  position:relative;
  padding-left:34px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:8px;top:8px;bottom:8px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,#FF5C39 0%,#B14BFF 55%,#1FC8B0 100%);
}
.tl-item{position:relative;padding:0 0 30px 0;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-33px;top:8px;
  width:14px;height:14px;
  border-radius:50%;
  background:var(--c-lime);
  border:3px solid #fff;
  box-shadow:0 0 0 2px rgba(27,18,48,.08);
}
.tl-time{
  font-size:13px;
  font-weight:600;
  color:var(--c-accent);
  letter-spacing:.4px;
  margin-bottom:6px;
}
.tl-title{font-size:16.5px;font-weight:700;margin-bottom:6px;}
.tl-text{font-size:14.5px;color:var(--c-ink-2);line-height:1.85;}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  background:linear-gradient(118deg,#FF5C39 0%,#B14BFF 62%,#1FC8B0 100%);
  padding:40px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  box-shadow:var(--sh-2);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:220px;height:220px;
  border-radius:50%;
  background:rgba(255,255,255,.12);
}
.cta-band h2{
  font-size:24px;
  font-weight:800;
  color:#fff;
  line-height:1.35;
  position:relative;
  z-index:2;
}
.cta-band p{
  margin-top:10px;
  font-size:15px;
  color:rgba(255,255,255,.9);
  max-width:620px;
  position:relative;
  z-index:2;
}
.cta-band .btn{
  position:relative;
  z-index:2;
  background:#fff;
  color:var(--c-accent);
  box-shadow:0 12px 28px -12px rgba(27,18,48,.45);
}
.cta-band .btn:hover{
  transform:translateY(-2px);
  box-shadow:0 18px 34px -12px rgba(27,18,48,.5);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:rgba(255,255,255,.72);
  margin-top:0;
  position:relative;
  padding-top:6px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:6px;
  background:var(--grad-brand);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.3fr;
  gap:40px;
  padding:64px 0 44px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
}
.footer-col p{
  font-size:13.5px;
  line-height:1.9;
  color:rgba(255,255,255,.68);
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col ul a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color .2s ease,transform .2s ease;
  display:inline-block;
}
.footer-col ul a:hover{color:#fff;transform:translateX(2px);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--grad-brand);}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-text small{color:rgba(255,255,255,.5);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 30px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:12.5px;
  color:rgba(255,255,255,.55);
}
.footer-bottom .tip{max-width:640px;line-height:1.8;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .menu-toggle{display:flex;}
  .split-check{grid-template-columns:1fr;gap:32px;}
  .page-hero h1{font-size:34px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .header-inner{height:56px;}
  .icon-btn{display:none;}
  .page-hero h1{font-size:29px;line-height:1.3;}
  .hero-lead{font-size:15.5px;}
  .section-head h2{font-size:22px;}
  .stat-chip{width:100%;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px;}
  .cta-band h2{font-size:20px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding:48px 0 34px;}
  .faq-q{font-size:15.5px;padding:18px 18px;}
  .faq-a-inner{padding:0 18px 18px;font-size:14.5px;}
  .check-item{padding:18px;}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .brand-text{font-size:15px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .timeline{padding-left:28px;}
  .tl-item::before{left:-27px;}
}