/* roulang page: index */
:root{
  --ink:#121316;
  --paper:#F7F5F1;
  --surface:#FFFFFF;
  --brand:#E4451F;
  --brand-deep:#B33215;
  --accent:#14685C;
  --line:#E4E0D8;
  --muted:#6B6862;
  --r-btn:10px;
  --r-card:14px;
  --r-big:18px;
  --sh-1:0 1px 2px rgba(18,19,22,.04);
  --sh-2:0 12px 32px rgba(18,19,22,.08);
  --nav-h:76px;
  --cd-h:40px;
  --serif:"Songti SC","Source Han Serif SC",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:130px;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
::selection{background:var(--brand);color:#fff;}
:focus-visible{outline:2px solid rgba(228,69,31,.35);outline-offset:2px;}
.foundation-clear::after{content:"";display:table;clear:both;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,3vw,40px);font-weight:700;line-height:1.2;letter-spacing:-.01em;}
.section-head p{color:var(--muted);font-size:15px;max-width:520px;margin-top:12px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);font-family:var(--serif);margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--brand);display:inline-block;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;position:relative;}
.link-more::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:100%;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .2s;}
.link-more:hover::after{transform:scaleX(1);}
.link-more:hover{color:var(--brand);}

/* ---------- countdown bar ---------- */
.countdown{
  position:sticky;top:0;z-index:60;height:var(--cd-h);background:var(--ink);
  color:rgba(247,245,241,.78);font-size:13px;display:flex;align-items:center;
}
.countdown .container{display:flex;align-items:center;justify-content:center;gap:14px;}
.cd-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52vw;}
.cd-clock{display:flex;align-items:center;gap:3px;font-variant-numeric:tabular-nums;font-weight:600;color:#F7F5F1;letter-spacing:.03em;white-space:nowrap;}
.cd-clock em{font-style:normal;color:var(--brand);}
.cd-sep{color:rgba(247,245,241,.3);}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:var(--cd-h);left:0;right:0;z-index:50;height:var(--nav-h);
  display:flex;align-items:center;
  background:rgba(247,245,241,.08);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  color:#F7F5F1;
  transition:height .24s ease,background .24s ease,color .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.site-header.is-stuck{
  height:64px;background:rgba(247,245,241,.94);border-bottom-color:var(--line);
  color:var(--ink);box-shadow:0 1px 2px rgba(18,19,22,.04);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
}
.nav-inner{display:flex;align-items:center;gap:28px;width:100%;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.01em;line-height:1.2;}
.brand .mark{width:8px;height:8px;border-radius:2px;background:var(--brand);flex:none;}
.brand span{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;font-size:15px;}
.nav-links a{position:relative;padding:6px 0;opacity:.8;transition:opacity .2s,color .2s;}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .2s;}
.nav-links a:hover{opacity:1;color:var(--brand);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{opacity:1;font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid currentColor;opacity:.72;transition:opacity .2s,transform .2s,background .2s;
}
.icon-btn:hover{opacity:1;transform:translateY(-1px);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;
  padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:transform .2s,background .2s,color .2s,border-color .2s,box-shadow .2s;
}
.btn i{font-size:13px;}
.btn-primary{background:var(--brand);color:#F7F5F1;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);}
.btn-ghost-dark{border:1px solid rgba(247,245,241,.55);color:#F7F5F1;}
.btn-ghost-dark:hover{background:#F7F5F1;color:var(--ink);}
.btn[disabled]{opacity:.45;pointer-events:none;}
.nav-cta{min-height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:inherit;align-items:center;justify-content:center;
  border:1px solid currentColor;opacity:.8;
}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,19,22,.42);opacity:0;pointer-events:none;
  transition:opacity .28s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:var(--paper);
  z-index:90;transform:translateX(100%);transition:transform .3s cubic-bezier(.2,.7,.2,1);
  padding:24px;display:flex;flex-direction:column;gap:4px;box-shadow:-12px 0 40px rgba(18,19,22,.16);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-head .brand{font-size:15px;}
.drawer a.drawer-link{
  height:44px;display:flex;align-items:center;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--ink);transition:color .2s,padding-left .2s;
}
.drawer a.drawer-link:hover,.drawer a.drawer-link.active{color:var(--brand);padding-left:4px;}
.drawer .btn{margin-top:22px;width:100%;}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#F7F5F1;
  min-height:clamp(520px,78vh,760px);
  display:flex;align-items:center;
  padding:calc(var(--cd-h) + var(--nav-h) + 56px) 0 88px;
  background-image:linear-gradient(rgba(10,11,13,.62),rgba(10,11,13,.78)),url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(255,255,255,.12);
}
.hero-inner{position:relative;z-index:2;max-width:900px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;border:1px solid rgba(247,245,241,.3);
  border-radius:999px;padding:7px 15px;font-size:12.5px;letter-spacing:.06em;color:rgba(247,245,241,.86);
  margin-bottom:26px;
}
.hero-tag i{color:var(--brand);font-size:11px;}
.hero h1{
  font-size:clamp(34px,5.6vw,76px);font-weight:800;line-height:1.06;letter-spacing:-.02em;
  margin-bottom:22px;
}
.hero h1 .accent{color:var(--brand);}
.hero-sub{font-size:clamp(16px,1.6vw,19px);color:rgba(247,245,241,.82);max-width:560px;margin-bottom:36px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-trust{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(247,245,241,.62);}
.hero-trust i{color:var(--accent);font-size:12px;}

/* ---------- stat strip ---------- */
.stat-strip{border-bottom:1px solid var(--line);background:var(--paper);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-cell{padding:38px 26px;border-left:1px solid var(--line);}
.stat-cell:first-child{border-left:0;padding-left:0;}
.stat-cell .num{
  font-size:clamp(26px,3vw,38px);font-weight:800;letter-spacing:-.02em;line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.stat-cell .num span{font-size:16px;font-weight:600;color:var(--brand);margin-left:2px;}
.stat-cell .lbl{margin-top:10px;font-size:13.5px;color:var(--muted);line-height:1.6;}

/* ---------- features ---------- */
.feature-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:24px;}
.feature-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:44px 40px;display:flex;flex-direction:column;justify-content:space-between;
  box-shadow:var(--sh-1);transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s;
}
.feature-main:hover,.feature-side:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.feature-num{font-family:var(--serif);font-size:15px;color:var(--brand);letter-spacing:.1em;margin-bottom:22px;}
.feature-main h3{font-size:clamp(21px,2.1vw,27px);font-weight:700;line-height:1.32;margin-bottom:16px;letter-spacing:-.01em;}
.feature-main p{color:var(--muted);font-size:15.5px;line-height:1.85;}
.feature-main .feature-list{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 13px;border-radius:999px;
  font-size:12.5px;background:rgba(20,104,92,.08);color:var(--accent);font-weight:600;
}
.feature-side-stack{display:flex;flex-direction:column;gap:24px;}
.feature-side{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;flex:1;box-shadow:var(--sh-1);
  transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s;
}
.feature-side h3{font-size:20px;font-weight:600;margin-bottom:12px;letter-spacing:-.01em;}
.feature-side p{color:var(--muted);font-size:15px;line-height:1.8;}
.feature-side .ico{
  width:38px;height:38px;border-radius:10px;background:var(--paper);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand);margin-bottom:18px;font-size:15px;
}

/* ---------- wall ---------- */
.wall-section{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.wall{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:150px;gap:16px;grid-auto-flow:dense;}
.wall-item{position:relative;overflow:hidden;border-radius:var(--r-card);background:var(--ink);margin:0;}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .55s cubic-bezier(.2,.7,.2,1);}
.wall-item::after{
  content:"";position:absolute;inset:0;background:linear-gradient(rgba(10,11,13,0),rgba(10,11,13,.72));
  opacity:.88;transition:opacity .3s;
}
.wall-item:hover img{transform:scale(1.03);}
.wall-item:hover::after{opacity:1;}
.wall-item figcaption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:18px;color:#F7F5F1;}
.wall-item figcaption b{display:block;font-size:15px;font-weight:600;line-height:1.4;}
.wall-item figcaption em{font-style:normal;font-size:12.5px;color:rgba(247,245,241,.7);}
.w-a{grid-column:span 2;grid-row:span 2;}
.w-b{grid-column:span 1;grid-row:span 2;}
.w-c{grid-column:span 1;grid-row:span 2;}
.w-d{grid-column:span 2;grid-row:span 2;}
.w-e{grid-column:span 1;grid-row:span 2;}
.w-f{grid-column:span 1;grid-row:span 2;}

/* ---------- cta / form ---------- */
.cta-band{background:var(--ink);color:#F7F5F1;}
.cta-grid{display:grid;grid-template-columns:1fr 460px;gap:64px;align-items:start;}
.cta-band h2{font-size:clamp(26px,3.2vw,42px);font-weight:700;line-height:1.16;letter-spacing:-.01em;margin-bottom:18px;}
.cta-band .lead{color:rgba(247,245,241,.72);font-size:16px;line-height:1.85;max-width:520px;}
.cta-points{margin-top:36px;display:flex;flex-direction:column;gap:0;max-width:520px;}
.cta-points li{
  display:flex;gap:14px;padding:16px 0;border-top:1px solid rgba(255,255,255,.1);font-size:15px;
  color:rgba(247,245,241,.84);
}
.cta-points li:last-child{border-bottom:1px solid rgba(255,255,255,.1);}
.cta-points i{color:var(--brand);margin-top:4px;font-size:13px;}
.form-card{
  background:rgba(247,245,241,.05);border:1px solid rgba(247,245,241,.14);border-radius:var(--r-big);
  padding:34px 32px;
}
.form-card h3{font-size:19px;font-weight:600;margin-bottom:8px;}
.form-card .form-note{font-size:13px;color:rgba(247,245,241,.6);margin-bottom:24px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;}
.field label{font-size:13px;color:rgba(247,245,241,.62);}
.field input{
  height:48px;padding:0 14px;border-radius:var(--r-btn);color:#F7F5F1;
  border:1px solid rgba(247,245,241,.22);background:rgba(247,245,241,.06);
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.field input::placeholder{color:rgba(247,245,241,.38);}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(228,69,31,.28);background:rgba(247,245,241,.1);}
.captcha-row{display:grid;grid-template-columns:1fr 116px;gap:12px;}
.captcha-box{
  height:48px;border-radius:var(--r-btn);border:1px solid rgba(247,245,241,.22);
  background:repeating-linear-gradient(115deg,rgba(247,245,241,.09) 0 8px,rgba(247,245,241,.03) 8px 16px);
  display:flex;align-items:center;justify-content:center;font-size:15px;letter-spacing:.32em;
  color:rgba(247,245,241,.82);font-weight:600;user-select:none;
}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:rgba(247,245,241,.62);margin:6px 0 22px;}
.agree input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand);}
.form-error{color:#F09070;font-size:13px;min-height:18px;margin-bottom:6px;}
.form-card .btn{width:100%;}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:24px 44px 24px 0;position:relative;
  font-size:17px;font-weight:600;line-height:1.5;transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--muted);transition:color .2s,transform .2s;
}
.faq-item[open] summary{color:var(--brand);}
.faq-item[open] summary::after{content:"−";color:var(--brand);}
.faq-item summary:hover{color:var(--brand);}
.faq-body{padding:0 60px 26px 0;color:var(--muted);font-size:15px;line-height:1.8;}

/* ---------- latest / posts ---------- */
.post-lead{
  display:grid;grid-template-columns:7fr 5fr;gap:0;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-big);overflow:hidden;
  margin-bottom:24px;box-shadow:var(--sh-1);
  transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s;
}
.post-lead:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.post-lead-media{position:relative;overflow:hidden;background:var(--ink);min-height:320px;}
.post-lead-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform .55s cubic-bezier(.2,.7,.2,1);}
.post-lead:hover .post-lead-media img{transform:scale(1.03);}
.post-lead-body{padding:40px 38px;display:flex;flex-direction:column;justify-content:center;}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:rgba(20,104,92,.08);color:var(--accent);width:fit-content;
}
.post-lead-body h3{font-size:clamp(20px,2vw,26px);font-weight:700;line-height:1.38;margin:18px 0 14px;letter-spacing:-.01em;}
.post-lead-body h3 a:hover{color:var(--brand);}
.post-lead-body p{color:var(--muted);font-size:15px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.meta-row{display:flex;align-items:center;justify-content:space-between;margin-top:26px;font-size:13px;color:var(--muted);}
.meta-row .go{color:var(--brand);font-weight:600;}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--sh-1);
  transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.post-card-media{position:relative;overflow:hidden;background:var(--ink);aspect-ratio:4/3;}
.post-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s cubic-bezier(.2,.7,.2,1);}
.post-card:hover .post-card-media img{transform:scale(1.03);}
.post-card-media .badge{position:absolute;left:14px;top:14px;background:rgba(247,245,241,.94);color:var(--accent);}
.post-card-body{padding:24px 22px 22px;display:flex;flex-direction:column;flex:1;}
.post-card-body h3{
  font-size:17px;font-weight:600;line-height:1.5;margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card-body h3 a:hover{color:var(--brand);}
.post-card-body p{
  color:var(--muted);font-size:14px;line-height:1.75;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card-body .meta-row{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);padding:64px 32px;text-align:center;
  background:var(--surface);
}
.empty-state i{font-size:26px;color:var(--line);margin-bottom:18px;display:block;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(247,245,241,.72);padding:76px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:56px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#F7F5F1;margin-bottom:18px;}
.footer-brand .mark{width:8px;height:8px;border-radius:2px;background:var(--brand);}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(247,245,241,.6);}
.footer-col h4{font-size:14px;font-weight:600;color:#F7F5F1;margin-bottom:20px;letter-spacing:.02em;}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:14px;color:rgba(247,245,241,.72);transition:color .2s;}
.footer-col a:hover{color:var(--brand);}
.footer-col .contact-line{font-size:14px;color:rgba(247,245,241,.72);margin-bottom:12px;display:flex;gap:10px;align-items:flex-start;}
.footer-col .contact-line i{margin-top:5px;font-size:12px;color:var(--brand);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:24px 0;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(247,245,241,.5);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .cta-grid{gap:48px;grid-template-columns:1fr 420px;}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .nav-actions{margin-left:auto;}
  .brand span{font-size:15px;}
  .feature-layout{grid-template-columns:1fr;}
  .wall{grid-template-columns:repeat(2,1fr);grid-auto-rows:160px;}
  .w-a,.w-d{grid-column:span 2;}
  .cta-grid{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .post-lead{grid-template-columns:1fr;}
  .post-lead-media{min-height:240px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .stat-cell:nth-child(3){border-left:0;padding-left:0;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .container{padding:0 18px;}
  :root{--nav-h:68px;--cd-h:36px;}
  .hero{min-height:auto;padding:calc(var(--cd-h) + var(--nav-h) + 46px) 0 64px;}
  .hero h1{font-size:clamp(34px,9vw,46px);}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 100%;}
  .section-head{margin-bottom:32px;}
  .wall{grid-template-columns:1fr;grid-auto-rows:200px;}
  .w-a,.w-b,.w-c,.w-d,.w-e,.w-f{grid-column:span 1;grid-row:span 1;}
  .post-grid{grid-template-columns:1fr;}
  .feature-main{padding:32px 24px;}
  .feature-side{padding:26px 22px;}
  .cta-band h2{font-size:26px;}
  .form-card{padding:26px 20px;}
  .captcha-row{grid-template-columns:1fr 100px;}
  .faq-body{padding-right:20px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .stat-grid{grid-template-columns:1fr;}
  .stat-cell{border-left:0;padding:22px 0;border-top:1px solid var(--line);}
  .stat-cell:first-child{border-top:0;}
  .cd-label{max-width:44vw;font-size:12px;}
  .cd-clock{font-size:12px;}
  .post-lead-body{padding:26px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1 !important;transform:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink:#121316;
  --paper:#F7F5F1;
  --surface:#FFFFFF;
  --brand:#E4451F;
  --brand-deep:#B33215;
  --accent:#14685C;
  --line:#E4E0D8;
  --muted:#6B6862;
  --r-btn:10px;
  --r-card:14px;
  --r-big:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,19,22,.04);
  --sh-2:0 12px 32px rgba(18,19,22,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1200px;
  --bar-h:40px;
  --nav-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-title{font-size:clamp(24px,3vw,40px);font-weight:700;letter-spacing:-.01em;line-height:1.2}
.sec-desc{color:var(--muted);font-size:15px;max-width:560px;margin-top:12px}
.mono{font-variant-numeric:tabular-nums}
.serif{font-family:Georgia,"Songti SC","SimSun",serif}

/* 倒计时条 */
.countdown-bar{
  position:fixed;top:0;left:0;right:0;height:var(--bar-h);
  background:var(--ink);color:rgba(247,245,241,.80);
  z-index:1200;display:flex;align-items:center;
  font-size:13px;letter-spacing:.01em;
}
.cd-inner{display:flex;align-items:center;gap:14px;white-space:nowrap;overflow:hidden}
.cd-text{overflow:hidden;text-overflow:ellipsis}
.cd-num{color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums;padding:0 2px}
.cd-sep{color:rgba(247,245,241,.30)}

/* 导航 */
.site-header{
  position:fixed;top:var(--bar-h);left:0;right:0;z-index:1100;
  height:var(--nav-h);
  background:rgba(247,245,241,.08);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  transition:background .24s var(--ease),height .24s var(--ease),border-color .24s var(--ease);
}
.nav-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.01em;font-size:18px;color:#F7F5F1;transition:color .24s var(--ease)}
.brand .mark{width:8px;height:8px;background:var(--brand);display:inline-block;border-radius:2px;flex:none}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{
  position:relative;font-size:15px;color:rgba(247,245,241,.86);
  padding:6px 0;transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:#fff}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.28);background:transparent;
  color:#F7F5F1;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.14)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.28);background:transparent;color:#F7F5F1;
  align-items:center;justify-content:center;cursor:pointer;
}
.site-header.is-stuck{
  background:rgba(247,245,241,.94);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
  height:64px;
}
.site-header.is-stuck .brand{color:var(--ink)}
.site-header.is-stuck .nav-links a{color:var(--muted)}
.site-header.is-stuck .nav-links a:hover,.site-header.is-stuck .nav-links a.active{color:var(--ink)}
.site-header.is-stuck .icon-btn,.site-header.is-stuck .nav-toggle{color:var(--ink);border-color:var(--line)}
.site-header.is-stuck .icon-btn:hover{background:rgba(18,19,22,.05)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn:focus-visible{outline:2px solid rgba(228,69,31,.35);outline-offset:2px}
.btn-primary{background:var(--brand);color:#F7F5F1}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#F7F5F1;transform:translateY(-1px)}
.btn-ghost-light{border-color:rgba(247,245,241,.55);color:#F7F5F1;background:rgba(247,245,241,.06)}
.btn-ghost-light:hover{background:#F7F5F1;color:var(--ink);transform:translateY(-1px)}
.btn-text{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px;position:relative}
.btn-text::after{content:"";position:absolute;left:0;bottom:-2px;height:1px;width:100%;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.btn-text:hover::after{transform:scaleX(1)}
.nav-cta{min-height:40px;padding:0 18px;font-size:14px}

/* Hero */
.page-hero{
  position:relative;min-height:380px;display:flex;align-items:flex-end;
  padding:calc(var(--bar-h) + var(--nav-h) + 56px) 0 64px;
  overflow:hidden;background:#0A0B0D;
}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.02)}
.hero-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,11,13,.62),rgba(10,11,13,.84))}
.hero-copy{position:relative;z-index:2;color:#F7F5F1;max-width:840px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:rgba(247,245,241,.72);margin-bottom:20px;
}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--brand)}
.page-hero h1{
  color:#F7F5F1;font-size:clamp(30px,4.4vw,56px);font-weight:800;
  line-height:1.1;letter-spacing:-.02em;
}
.hero-sub{color:rgba(247,245,241,.78);font-size:17px;margin-top:18px;max-width:560px}
.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-meta{display:flex;gap:20px;flex-wrap:wrap;margin-top:26px;font-size:13px;color:rgba(247,245,241,.62)}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}

/* 数据条 */
.stat-strip{background:var(--ink);padding:40px 0}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{border-left:1px solid rgba(247,245,241,.14);padding-left:20px}
.stat:first-child{border-left:none;padding-left:0}
.stat-num{display:block;font-size:clamp(28px,3.4vw,40px);font-weight:800;color:#F7F5F1;font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.1}
.stat-num em{font-style:normal;font-size:16px;color:var(--brand);margin-left:4px;font-weight:600}
.stat-label{display:block;font-size:13px;color:rgba(247,245,241,.62);margin-top:8px}

/* 章节头 */
.doc-head{margin-bottom:24px}
.doc-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.25}
.doc-head p{color:var(--muted);margin-top:12px;font-size:15px}

/* 文档栅格 */
.doc-grid{display:grid;grid-template-columns:260px minmax(0,1fr);gap:56px;align-items:start}
.toc{position:sticky;top:140px}
.toc-title{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);padding-bottom:14px;border-bottom:1px solid var(--line)}
.toc a{
  display:flex;align-items:center;gap:10px;padding:12px 0;font-size:14px;
  color:var(--muted);border-bottom:1px solid var(--line);transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.toc a:hover{color:var(--ink);padding-left:6px}
.toc a .idx{font-variant-numeric:tabular-nums;color:var(--brand);font-weight:700;font-size:12px}
.toc-note{margin-top:20px;padding:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);font-size:13px;color:var(--muted);box-shadow:var(--sh-1)}

.doc-body{display:flex;flex-direction:column;gap:56px;max-width:760px}
.doc-section h2{
  display:flex;align-items:baseline;gap:14px;
  font-size:clamp(22px,2.3vw,28px);line-height:1.3;padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.sec-index{font-family:Georgia,"Songti SC","SimSun",serif;font-size:15px;color:var(--brand);font-weight:400;letter-spacing:.06em}
.doc-section p{margin-top:18px;color:#33343A}
.doc-section p.lead{font-size:18px;color:var(--ink)}
.dot-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.dot-list li{position:relative;padding-left:22px;font-size:15px;color:#33343A}
.dot-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--brand)}
.num-list{margin-top:20px;display:flex;flex-direction:column;gap:0;counter-reset:step}
.num-list li{
  counter-increment:step;position:relative;padding:16px 0 16px 52px;
  border-bottom:1px solid var(--line);font-size:15px;color:#33343A;
}
.num-list li::before{
  content:counter(step,decimal-leading-zero);position:absolute;left:0;top:16px;
  font-family:Georgia,"Songti SC",serif;font-size:14px;color:var(--brand);font-weight:700;
  font-variant-numeric:tabular-nums;
}
.num-list li strong{display:block;color:var(--ink);font-weight:600;margin-bottom:2px}
.callout{
  margin-top:22px;padding:16px 18px;background:var(--surface);
  border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:0 var(--r-card) var(--r-card) 0;font-size:14px;color:var(--muted);
  display:flex;gap:12px;align-items:flex-start;
}
.callout i{color:var(--brand);margin-top:4px}
.callout b{color:var(--ink);font-weight:600}

/* 标签 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;
  border-radius:var(--r-pill);background:var(--surface);border:1px solid var(--line);
  font-size:14px;color:var(--muted);transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.tag:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--ink)}
.badge-accent{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:rgba(20,104,92,.10);color:var(--accent);
  font-size:12px;font-weight:600;
}

/* 速览卡 */
.glance-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.glance-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.glance-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.glance-card h3{font-size:18px;font-weight:600}
.glance-card p{font-size:14px;color:var(--muted);margin-top:10px}
.glance-icon{
  width:40px;height:40px;border-radius:10px;background:rgba(228,69,31,.10);
  color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:16px;margin-bottom:16px;
}

/* 图墙 */
.wall{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px}
.wall-item{position:relative;overflow:hidden;border-radius:var(--r-card);background:var(--surface);border:1px solid var(--line)}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease),opacity .4s var(--ease)}
.wall-item:hover img{transform:scale(1.03)}
.wall-item::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,11,13,0),rgba(10,11,13,.6));opacity:0;transition:opacity .3s var(--ease)}
.wall-item:hover::after{opacity:1}
.wall-cap{position:absolute;left:16px;bottom:14px;z-index:2;color:#F7F5F1;font-size:14px;font-weight:600;opacity:0;transform:translateY(6px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.wall-item:hover .wall-cap{opacity:1;transform:translateY(0)}
.wall-item.tall{grid-row:span 2}

/* FAQ */
.faq-list{margin-top:32px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding:22px 0;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .sign{
  flex:none;width:26px;height:26px;border-radius:var(--r-pill);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand);
  font-size:15px;line-height:1;transition:transform .2s var(--ease),background .2s var(--ease);
}
.faq-item[open] summary .sign{transform:rotate(45deg);background:rgba(228,69,31,.08)}
.faq-answer{padding:0 0 24px;font-size:15px;line-height:1.8;color:var(--muted);max-width:760px}
.faq-item summary:hover{color:var(--brand)}

/* CTA */
.cta-band{background:var(--ink);color:#F7F5F1;padding:80px 0}
.cta-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center}
.cta-band h2{color:#F7F5F1;font-size:clamp(24px,3vw,38px);line-height:1.2}
.cta-band p{color:rgba(247,245,241,.70);margin-top:16px;font-size:15px;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.cta-facts{display:flex;gap:28px;margin-top:28px;flex-wrap:wrap;font-size:13px;color:rgba(247,245,241,.60)}
.cta-facts span{display:inline-flex;align-items:center;gap:8px}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(247,245,241,.72);padding:72px 0 0;border-top:1px solid rgba(255,255,255,.10)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#F7F5F1;letter-spacing:-.01em;margin-bottom:16px}
.footer-brand .mark{width:8px;height:8px;background:var(--brand);border-radius:2px;display:inline-block}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(247,245,241,.60);max-width:340px}
.footer-col h4{color:#F7F5F1;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(247,245,241,.72);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--brand)}
.contact-line{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(247,245,241,.72);margin-bottom:12px}
.contact-line i{color:var(--brand);margin-top:4px}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.10);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(247,245,241,.50);
}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* 响应式 */
@media (max-width:1280px){
  .doc-grid{gap:40px;grid-template-columns:230px minmax(0,1fr)}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .doc-grid{grid-template-columns:minmax(0,1fr)}
  .toc{display:none}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .wall{grid-template-columns:repeat(2,1fr)}
  .wall-item.tall{grid-row:span 1}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .glance-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:78%;max-width:320px;
    background:var(--paper);flex-direction:column;align-items:flex-start;gap:0;
    padding:96px 24px 32px;transform:translateX(100%);
    transition:transform .28s var(--ease);box-shadow:-16px 0 40px rgba(18,19,22,.12);
    z-index:1150;overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-links a{width:100%;height:44px;display:flex;align-items:center;border-bottom:1px solid var(--line);color:var(--ink)!important;font-size:15px}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--brand)!important}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .site-header{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(18,19,22,.60)}
  .site-header.is-stuck{background:rgba(247,245,241,.96)}
  .page-hero{min-height:340px;padding:calc(var(--bar-h) + var(--nav-h) + 24px) 0 48px}
  .page-hero h1{font-size:clamp(28px,7vw,38px)}
  .hero-actions .btn{width:100%}
  .wall{grid-template-columns:1fr}
  .glance-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr;gap:24px}
  .stat{border-left:none;padding-left:0}
  .footer-grid{grid-template-columns:1fr}
  .cd-inner{gap:10px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .stat-grid{grid-template-columns:1fr;gap:20px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-band{padding:64px 0}
}

/* roulang page: article */
:root{
  --ink:#121316;
  --paper:#F7F5F1;
  --surface:#FFFFFF;
  --brand:#E4451F;
  --brand-deep:#B33215;
  --accent:#14685C;
  --line:#E4E0D8;
  --muted:#6B6862;
  --radius-btn:10px;
  --radius-card:14px;
  --radius-hero:18px;
  --shadow-1:0 1px 2px rgba(18,19,22,.04);
  --shadow-2:0 12px 32px rgba(18,19,22,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
  --topbar-h:40px;
  --nav-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;overflow-x:hidden}
body{
  margin:0;
  padding:0;
  background:var(--paper);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
@media (max-width:1024px){.section{padding:72px 0}}
@media (max-width:768px){.section{padding:56px 0}}

/* ---------- 顶部倒计时条 ---------- */
.top-fixed{position:fixed;top:0;left:0;right:0;z-index:1000}
.countdown-bar{background:var(--ink);color:rgba(247,245,241,.86);height:var(--topbar-h);display:flex;align-items:center;font-size:13px}
.countdown-inner{display:flex;align-items:center;gap:14px;white-space:nowrap;overflow:hidden}
.cd-dot{width:7px;height:7px;background:var(--brand);border-radius:2px;flex:0 0 auto}
.cd-label{letter-spacing:.04em;color:rgba(247,245,241,.72)}
.cd-time{color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.01em}
.cd-note{margin-left:auto;color:rgba(247,245,241,.45);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media (max-width:768px){
  .countdown-bar{height:36px;font-size:12px}
  .cd-note{display:none}
}

/* ---------- 导航 ---------- */
.site-header{
  height:var(--nav-h);
  display:flex;
  align-items:center;
  background:rgba(247,245,241,.08);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  color:#F7F5F1;
  transition:height .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{
  height:64px;
  background:rgba(247,245,241,.94);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom-color:var(--line);
  color:var(--ink);
  box-shadow:var(--shadow-1);
}
.nav-inner{display:flex;align-items:center;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.01em;color:inherit;white-space:nowrap}
.brand .mark{width:8px;height:8px;background:var(--brand);border-radius:1px;display:inline-block;flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto}
.nav-links a{position:relative;font-size:14.5px;font-weight:500;color:inherit;opacity:.82;padding:6px 0;transition:opacity .2s var(--ease),color .2s var(--ease)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.nav-links a:hover{opacity:1}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{opacity:1;color:var(--brand)}
.nav-links a.active::after{transform:scaleX(1);background:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:26px}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.28);background:transparent;color:inherit;
  border-radius:10px;cursor:pointer;opacity:.8;transition:all .2s var(--ease);
}
.icon-btn:hover{opacity:1;background:rgba(228,69,31,.12);border-color:rgba(228,69,31,.5)}
.site-header.is-stuck .icon-btn{border-color:var(--line)}
.site-header.is-stuck .icon-btn:hover{border-color:var(--brand);color:var(--brand);background:rgba(228,69,31,.06)}
.nav-toggle{
  display:none;width:38px;height:38px;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.28);background:transparent;color:inherit;
  border-radius:10px;cursor:pointer;transition:all .2s var(--ease);
}
.site-header.is-stuck .nav-toggle{border-color:var(--line)}
@media (max-width:1024px){
  .nav-links{gap:20px}
  .nav-links a{font-size:14px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions{margin-left:auto;gap:10px}
}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(10,11,13,.5);z-index:1190;opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease)}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);
  background:var(--paper);color:var(--ink);z-index:1200;
  transform:translateX(102%);transition:transform .32s var(--ease);
  padding:24px;display:flex;flex-direction:column;
  box-shadow:-12px 0 40px rgba(18,19,22,.14);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);background:transparent;border-radius:10px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all .2s var(--ease)}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-links{display:flex;flex-direction:column;margin:22px 0;border-top:1px solid var(--line)}
.drawer-links a{height:44px;display:flex;align-items:center;border-bottom:1px solid var(--line);font-size:16px;font-weight:500;transition:color .2s var(--ease),padding-left .2s var(--ease)}
.drawer-links a:hover{color:var(--brand);padding-left:4px}
.drawer-links a.active{color:var(--brand);font-weight:700}
.drawer-foot{margin-top:auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;text-decoration:none;
  transition:background-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--brand);color:#F7F5F1;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#F7F5F1;transform:translateY(-1px)}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 2px rgba(228,69,31,.35)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn-block{width:100%}
.link-arrow{position:relative;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.link-arrow::after{content:"";position:absolute;left:0;bottom:-3px;width:100%;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.link-arrow:hover::after{transform:scaleX(1)}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  background:#0A0B0D url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#F7F5F1;
  padding:calc(var(--topbar-h) + var(--nav-h) + 76px) 0 76px;
  overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,13,.70),rgba(10,11,13,.88));
}
.article-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:rgba(247,245,241,.58);margin-bottom:24px}
.breadcrumb a{color:rgba(247,245,241,.58);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .crumb-current{color:rgba(247,245,241,.9);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  font-size:clamp(30px,4.4vw,56px);
  font-weight:800;
  line-height:1.12;
  letter-spacing:-.02em;
  max-width:22ch;
  margin:0 0 26px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:rgba(247,245,241,.66)}
.article-meta .sep{width:1px;height:12px;background:rgba(255,255,255,.24);display:inline-block}
.article-meta i{margin-right:6px;color:var(--brand)}
@media (max-width:768px){
  .article-hero{padding:calc(36px + 64px + 44px) 0 52px}
  .article-title{font-size:clamp(26px,7vw,34px);max-width:100%}
  .breadcrumb .crumb-current{max-width:30ch}
}

/* ---------- 正文布局 ---------- */
.article-main{padding:72px 0 0}
@media (max-width:768px){.article-main{padding:48px 0 0}}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:56px;align-items:start}
.article-body{max-width:740px;margin:0 auto;width:100%;min-width:0}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,740px) 340px;justify-content:center}
  .article-body{max-width:none;margin:0}
}
.article-side{display:none}
@media (min-width:1200px){
  .article-side{display:block;position:sticky;top:calc(var(--topbar-h) + 64px + 24px)}
}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);margin-bottom:20px;
}
.side-card h3{font-size:15px;font-weight:700;letter-spacing:.02em;margin:0 0 16px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.side-list li + li{margin-top:2px}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;font-size:14.5px;color:var(--muted);border-bottom:1px dashed var(--line);transition:color .2s var(--ease),padding-left .2s var(--ease)}
.side-list li:last-child a{border-bottom:0}
.side-list a:hover{color:var(--brand);padding-left:4px}
.side-list i{font-size:11px;opacity:.6}
.side-cta{background:var(--ink);border-color:var(--ink);color:rgba(247,245,241,.72)}
.side-cta h3{color:#F7F5F1;border-bottom-color:rgba(255,255,255,.14)}
.side-cta p{font-size:13.5px;line-height:1.8;margin:0 0 18px}

/* ---------- 富文本正文 ---------- */
.rich-content{font-size:16px;line-height:1.9;color:#232428}
.rich-content > *:first-child{margin-top:0}
.rich-content p{margin:0 0 20px}
.rich-content > p:first-of-type{font-size:18px;line-height:1.85;color:#33353a}
.rich-content h2{
  font-size:clamp(21px,2.2vw,26px);font-weight:700;line-height:1.4;
  margin:46px 0 18px;padding-left:14px;border-left:3px solid var(--brand);
  letter-spacing:-.01em;
}
.rich-content h3{font-size:20px;font-weight:600;line-height:1.5;margin:34px 0 14px}
.rich-content h4{font-size:17px;font-weight:600;margin:26px 0 12px}
.rich-content ul{margin:0 0 22px}
.rich-content ul li{position:relative;padding-left:20px;margin-bottom:10px}
.rich-content ul li::before{content:"";position:absolute;left:0;top:.85em;width:7px;height:1.5px;background:var(--brand)}
.rich-content ol{counter-reset:rc;margin:0 0 22px}
.rich-content ol li{position:relative;padding-left:34px;margin-bottom:12px;counter-increment:rc}
.rich-content ol li::before{
  content:counter(rc,decimal-leading-zero);position:absolute;left:0;top:.15em;
  font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.02em;
}
.rich-content blockquote{
  margin:28px 0;padding:20px 24px;background:var(--paper);
  border-left:3px solid var(--ink);border-radius:0 var(--radius-card) var(--radius-card) 0;
  color:#33353a;font-size:15.5px;
}
.rich-content blockquote p:last-child{margin-bottom:0}
.rich-content img{border-radius:12px;margin:28px auto;height:auto}
.rich-content figure{margin:28px 0}
.rich-content figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.rich-content a{color:var(--brand);border-bottom:1px solid rgba(228,69,31,.35);transition:border-color .2s var(--ease)}
.rich-content a:hover{border-bottom-color:var(--brand)}
.rich-content hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.rich-content table{width:100%;border-collapse:collapse;font-size:14.5px;margin:24px 0}
.rich-content th,.rich-content td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.rich-content th{background:var(--paper);font-weight:600}
.rich-content .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* ---------- 空状态 ---------- */
.empty-state{
  text-align:center;padding:72px 24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);
}
.empty-state i{font-size:34px;color:var(--line);margin-bottom:18px;display:inline-block}
.empty-state p{font-size:16px;color:var(--muted);margin:0 0 22px}

/* ---------- 文章标签 ---------- */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.article-tags .tag-label{font-size:13px;color:var(--muted);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--muted);
  transition:all .2s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:rgba(228,69,31,.05)}
.back-line{margin-top:26px;font-size:14px}

/* ---------- 相关推荐 ---------- */
.related-section{padding:96px 0 96px;border-top:1px solid var(--line);margin-top:96px}
@media (max-width:1024px){.related-section{padding:72px 0;margin-top:72px}}
@media (max-width:768px){.related-section{padding:56px 0;margin-top:56px}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,3vw,36px);font-weight:700;letter-spacing:-.02em;line-height:1.2}
.card-grid{margin-left:-12px;margin-right:-12px}
.card-grid > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  box-shadow:var(--shadow-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#d9d4ca}
.card-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--ink)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,11,13,0) 40%,rgba(10,11,13,.42));opacity:.7;transition:opacity .3s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card:hover .card-media::after{opacity:1}
.badge{
  position:absolute;top:14px;left:14px;z-index:2;
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  background:rgba(20,104,92,.94);color:#F7F5F1;font-size:12px;font-weight:600;
  border-radius:999px;letter-spacing:.02em;
}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.card-title{
  font-size:17px;font-weight:700;line-height:1.45;margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.card:hover .card-title{color:var(--brand)}
.card-desc{
  font-size:14px;color:var(--muted);line-height:1.75;margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--muted);
}
.card-foot i{font-size:11px;color:var(--brand);transition:transform .2s var(--ease)}
.card:hover .card-foot i{transform:translateX(4px)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(247,245,241,.72);padding:72px 0 0;font-size:14px;line-height:1.8}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.4fr;gap:48px;
  padding-bottom:56px;border-bottom:1px solid rgba(255,255,255,.10);
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#F7F5F1;font-size:17px;font-weight:800;letter-spacing:-.01em;margin-bottom:16px}
.footer-brand .mark{width:8px;height:8px;background:var(--brand);border-radius:1px;display:inline-block;flex:0 0 auto}
.site-footer p{margin:0;max-width:38ch;color:rgba(247,245,241,.6)}
.footer-col h4{color:#F7F5F1;font-size:14px;font-weight:700;letter-spacing:.06em;margin:0 0 18px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:rgba(247,245,241,.72);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--brand)}
.contact-line{display:flex;gap:10px;align-items:flex-start;margin-bottom:10px;color:rgba(247,245,241,.66)}
.contact-line i{color:var(--brand);margin-top:6px;font-size:12px;flex:0 0 auto}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:24px 0 30px;font-size:13px;color:rgba(247,245,241,.45);
}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .site-footer{padding-top:52px}
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#121316;
  --paper:#F7F5F1;
  --surface:#FFFFFF;
  --brand:#E4451F;
  --brand-deep:#B33215;
  --accent:#14685C;
  --line:#E4E0D8;
  --muted:#6B6862;
  --r-btn:10px;
  --r-card:14px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,19,22,.04);
  --sh-2:0 12px 32px rgba(18,19,22,.08);
  --font-sans:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-serif:"Songti SC","Noto Serif SC",Georgia,serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-sans);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,dl,dt,dd,table,th,td,button,input,textarea,select{
  font-family:var(--font-sans);
}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;height:auto;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
button{font:inherit;cursor:pointer}
input,textarea{font:inherit}
table{border-collapse:collapse;border-spacing:0}
:focus-visible{outline:2px solid rgba(228,69,31,.35);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.muted{color:var(--muted)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 顶部倒计时条 ---------- */
.topbar{
  position:sticky;top:0;z-index:60;height:40px;background:var(--ink);
  color:rgba(247,245,241,.86);font-size:13px;overflow:hidden;
}
.topbar-inner{display:flex;align-items:center;gap:14px;height:100%;white-space:nowrap;overflow:hidden}
.topbar-label{flex:0 0 auto;letter-spacing:.02em}
.topbar-time{
  flex:0 0 auto;color:var(--brand);font-weight:700;letter-spacing:.06em;
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
}
.topbar-note{
  margin-left:auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  color:rgba(247,245,241,.5);
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:40px;z-index:50;
  background:rgba(247,245,241,.94);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease,background .24s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(18,19,22,.06)}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:76px;transition:height .24s ease;
}
.site-header.is-scrolled .nav-inner{height:64px}
.brand{
  display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;
  letter-spacing:-.01em;color:var(--ink);white-space:nowrap;
}
.brand:hover{color:var(--ink)}
.mark{width:8px;height:8px;background:var(--brand);display:inline-block;flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--muted);
  padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand);
  transition:width .2s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--ink);font-weight:700}
.nav-links a.active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:transparent;color:var(--ink);display:inline-flex;align-items:center;
  justify-content:center;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--line);background:transparent;color:var(--ink);align-items:center;justify-content:center}
.drawer-cta{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,opacity .2s ease;
}
.btn-primary{background:var(--brand);color:#FFFFFF}
.btn-primary:hover{background:var(--brand-deep);color:#FFFFFF;transform:translateY(-1px)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px)}
.btn-light{background:var(--paper);color:var(--ink)}
.btn-light:hover{background:#FFFFFF;color:var(--ink);transform:translateY(-1px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--ink);border-bottom:1px solid var(--line);padding-bottom:3px;
}
.link-more:hover{color:var(--brand);border-color:var(--brand)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;background:rgba(20,104,92,.10);color:var(--accent);
}
.badge-brand{background:rgba(228,69,31,.10);color:var(--brand-deep)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--font-serif);
  font-size:13px;letter-spacing:.16em;color:var(--brand);font-weight:600;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--brand);display:inline-block}

/* ---------- 区块 ---------- */
.section{padding:96px 0}
.section--paper{background:var(--paper)}
.section--surface{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,40px);font-weight:700;line-height:1.15;margin-top:12px}
.section-head p{margin-top:12px;max-width:600px;color:var(--muted);font-size:15.5px}

/* ---------- 页首标题区 ---------- */
.page-hero{padding:72px 0 64px;background:var(--paper);border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C9C3B8}
.page-hero h1{
  margin-top:22px;font-size:clamp(34px,5vw,64px);font-weight:800;line-height:1.06;
  letter-spacing:-.02em;
}
.page-hero h1 .thin{color:var(--muted);font-weight:800}
.page-hero .lede{margin-top:20px;max-width:660px;font-size:18px;color:var(--muted)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.stat-row{
  display:flex;flex-wrap:wrap;gap:56px;margin-top:48px;padding-top:30px;border-top:1px solid var(--line);
}
.stat strong{display:block;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stat span{display:block;margin-top:4px;font-size:13px;color:var(--muted)}

/* ---------- 三组等高卡片 ---------- */
.card-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.info-card{
  display:flex;flex-direction:column;gap:18px;padding:34px 30px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#DAD4C9}
.card-icon{
  width:52px;height:52px;border-radius:14px;background:rgba(228,69,31,.08);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;
}
.info-card h3{font-size:21px;font-weight:600}
.info-card > p{font-size:15px;color:var(--muted)}
.tick-list{display:grid;gap:12px;margin-top:auto;padding-top:8px}
.tick-list li{position:relative;padding-left:22px;font-size:14.5px;color:#3D3B37;line-height:1.7}
.tick-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--brand);
}

/* ---------- 四步核对 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line)}
.step{padding:32px 26px 32px 0}
.step + .step{padding-left:26px;border-left:1px solid var(--line)}
.step .seq{
  font-family:var(--font-serif);font-size:13px;letter-spacing:.14em;color:var(--brand);font-weight:600;
}
.step h3{margin-top:14px;font-size:19px;font-weight:600}
.step p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.75}

/* ---------- 入口速览图卡 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.entry-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#DAD4C9;color:inherit}
.entry-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.entry-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,13,.05) 35%,rgba(10,11,13,.62));transition:background .3s ease;
}
.entry-card:hover .entry-thumb img{transform:scale(1.03)}
.entry-thumb .thumb-label{
  position:absolute;left:20px;bottom:18px;z-index:2;color:#F7F5F1;font-size:13px;letter-spacing:.06em;
  display:inline-flex;align-items:center;gap:8px;
}
.entry-thumb .thumb-label i{color:var(--brand)}
.entry-body{padding:26px 28px 30px}
.entry-body h3{font-size:20px;font-weight:600}
.entry-body p{margin-top:10px;font-size:14.5px;color:var(--muted)}
.entry-body .link-more{margin-top:18px}

/* ---------- 对照表 ---------- */
.tbl-wrap{
  overflow-x:auto;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
}
table.cmp{width:100%;min-width:680px;border-collapse:collapse}
table.cmp thead th{
  padding:16px 22px;text-align:left;font-size:12.5px;letter-spacing:.1em;font-weight:600;
  color:var(--muted);background:#FBF9F6;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.cmp td{
  padding:18px 22px;font-size:14.5px;line-height:1.7;color:#3D3B37;
  border-bottom:1px solid var(--line);vertical-align:top;
}
table.cmp tbody tr:nth-child(even){background:rgba(228,224,216,.22)}
table.cmp tbody tr:last-child td{border-bottom:none}
table.cmp td:first-child{font-weight:600;color:var(--ink);min-width:210px}
.note-bar{
  display:flex;gap:12px;align-items:flex-start;margin-top:22px;padding:18px 22px;
  background:rgba(20,104,92,.06);border-left:3px solid var(--accent);border-radius:0 var(--r-card) var(--r-card) 0;
  font-size:14.5px;color:#2F4F48;
}
.note-bar i{margin-top:4px;color:var(--accent)}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);max-width:900px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;transition:color .2s ease;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand)}
.faq .ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--muted);font-size:11px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.faq .ico i{transition:transform .2s ease}
.faq details[open] .ico{background:var(--brand);border-color:var(--brand);color:#FFFFFF}
.faq details[open] .ico i{transform:rotate(45deg)}
.faq .ans{padding:0 0 24px;max-width:780px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--ink) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:var(--paper);overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(rgba(10,11,13,.62),rgba(10,11,13,.78));
}
.cta-inner{
  position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
  padding:96px 0;
}
.cta-inner .eyebrow{color:#F0866A}
.cta-inner .eyebrow::before{background:#F0866A}
.cta-inner h2{
  margin-top:14px;color:#F7F5F1;font-size:clamp(26px,3.2vw,42px);font-weight:800;line-height:1.15;
  letter-spacing:-.015em;
}
.cta-inner p{margin-top:16px;max-width:520px;color:rgba(247,245,241,.72);font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.cta-side{
  border:1px solid rgba(255,255,255,.14);border-radius:var(--r-lg);padding:28px;
  background:rgba(255,255,255,.04);display:grid;gap:16px;
}
.cta-side .row{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:rgba(247,245,241,.78)}
.cta-side .row i{color:var(--brand);margin-top:5px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(247,245,241,.72);border-top:1px solid rgba(255,255,255,.10)}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;padding:72px 0 48px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;color:#F7F5F1;font-weight:800;font-size:18px;
  letter-spacing:-.01em;
}
.site-footer p{margin-top:16px;font-size:14.5px;line-height:1.8;max-width:340px;color:rgba(247,245,241,.6)}
.footer-col h4{
  margin:0 0 18px;font-size:13px;letter-spacing:.12em;font-weight:600;color:rgba(247,245,241,.5);
}
.footer-col ul{display:grid;gap:12px}
.footer-col a{font-size:14.5px;color:rgba(247,245,241,.78)}
.footer-col a:hover{color:var(--brand)}
.contact-line{display:flex;gap:10px;font-size:14.5px;margin-bottom:12px;color:rgba(247,245,241,.72)}
.contact-line i{margin-top:5px;color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.10);font-size:13px;color:rgba(247,245,241,.5);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:72px 0}
  .page-hero{padding:56px 0 48px}
  .cta-inner{padding:72px 0;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding:56px 0 40px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step:nth-child(3){padding-left:0;border-left:0;border-top:1px solid var(--line)}
  .step:nth-child(4){border-top:1px solid var(--line)}
}
@media (max-width:768px){
  .topbar{height:36px;font-size:12px}
  .topbar-note{display:none}
  .site-header{top:36px}
  .nav-inner{height:64px}
  .site-header.is-scrolled .nav-inner{height:58px}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-links{
    position:fixed;top:0;right:0;z-index:80;width:min(78vw,320px);height:100vh;
    display:flex;flex-direction:column;align-items:flex-start;gap:0;
    padding:88px 24px 32px;background:var(--paper);
    box-shadow:-12px 0 32px rgba(18,19,22,.12);
    transform:translateX(100%);transition:transform .28s cubic-bezier(.2,.7,.2,1);
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-links a{
    width:100%;height:44px;display:flex;align-items:center;font-size:16px;
    border-bottom:1px solid var(--line);color:var(--ink);
  }
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--brand)}
  .drawer-cta{display:inline-flex;width:100%;margin-top:22px;height:46px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .page-hero{padding:44px 0 40px}
  .page-hero h1{font-size:clamp(34px,8vw,46px)}
  .page-hero .lede{font-size:16px}
  .hero-actions .btn{width:100%}
  .stat-row{gap:28px;margin-top:34px}
  .stat{min-width:120px}
  .card-row,.entry-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step{padding:24px 0;border-left:0!important}
  .step + .step{border-top:1px solid var(--line)}
  .cta-inner{grid-template-columns:1fr;padding:56px 0}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq summary{font-size:16px;gap:16px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .info-card{padding:28px 22px}
  .entry-body{padding:22px}
  .stat-row{gap:22px}
  .stat strong{font-size:22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}