/* roulang page: index */
:root{
  --paper:#F5F2EC;
  --surface:#FFFFFF;
  --line:#E3DED3;
  --line-strong:#C9C2B4;
  --ink:#171A17;
  --ink-2:#4A4F4A;
  --muted:#8A8F88;
  --brand:#EE5B2B;
  --brand-deep:#C2441A;
  --brand-soft:#FBE7DE;
  --deep:#123A32;
  --deep-ink:#E9F0EA;
  --r-s:4px;
  --r-m:8px;
  --r-pill:999px;
  --sh-1:0 1px 0 rgba(23,26,23,.04),0 10px 28px -20px rgba(23,26,23,.22);
  --sh-2:0 18px 44px -24px rgba(23,26,23,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --space:8px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:1rem;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink);text-decoration:none;transition:color .28s var(--ease);}
a:hover{color:var(--brand);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:var(--r-s);
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-0.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:clamp(20px,4vw,48px);
  padding-right:clamp(20px,4vw,48px);
}
.eyebrow{
  display:inline-block;
  font-size:.75rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  font-weight:500;
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- 顶部倒计时条 ---------- */
.topbar{
  background:var(--deep);
  color:var(--deep-ink);
  font-size:.8125rem;
  letter-spacing:.04em;
}
.topbar-inner{
  min-height:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:6px;
  padding-bottom:6px;
}
.topbar-label{display:flex;align-items:center;gap:8px;color:var(--deep-ink);}
.dot{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block;flex:none;}
.countdown{
  display:flex;
  align-items:center;
  gap:6px;
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  letter-spacing:.06em;
}
.countdown b{
  display:inline-block;
  min-width:2.1em;
  text-align:center;
  color:#fff;
  font-weight:700;
  transition:opacity .24s var(--ease);
}
.countdown b.tick{opacity:.35;}
.countdown span.sep{opacity:.45;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(245,242,236,.94);
  backdrop-filter:saturate(120%) blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.logo{display:flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  font-size:1.125rem;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
  line-height:1.1;
}
.logo-sub{
  display:block;
  font-size:.6875rem;
  letter-spacing:.16em;
  color:var(--muted);
  font-weight:500;
  margin-top:2px;
}
.logo-dot{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:none;}
.main-nav{display:flex;align-items:center;gap:32px;}
.main-nav a{
  font-size:.9375rem;
  font-weight:500;
  color:var(--ink);
  position:relative;
  padding:4px 0;
  transition:color .28s var(--ease);
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-2px;
  height:2px;
  width:0;
  background:var(--brand);
  transition:width .3s var(--ease);
}
.main-nav a:hover{color:var(--brand);}
.main-nav a:hover::after{width:100%;}
.main-nav a[aria-current="page"]{color:var(--ink);}
.main-nav a[aria-current="page"]::after{width:100%;}
.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  border:1px solid var(--ink);
  border-radius:var(--r-pill);
  padding:9px 22px;
  font-size:.875rem;
  font-weight:700;
  color:var(--ink);
  background:transparent;
  transition:background .3s var(--ease),color .3s var(--ease),transform .3s var(--ease);
  white-space:nowrap;
}
.nav-cta:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.burger{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line-strong);
  background:transparent;
  border-radius:var(--r-s);
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.burger span{display:block;width:18px;height:1.5px;background:var(--ink);position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--ink);
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.mobile-menu{
  position:fixed;
  inset:0;
  background:var(--paper);
  z-index:100;
  display:none;
  flex-direction:column;
  padding:24px clamp(20px,4vw,48px) 40px;
  overflow-y:auto;
}
.mobile-menu.open{display:flex;}
.mobile-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;}
.mobile-close{
  width:44px;height:44px;
  border:1px solid var(--line-strong);
  background:transparent;
  border-radius:var(--r-s);
  font-size:1.25rem;
  line-height:1;
  color:var(--ink);
  cursor:pointer;
}
.mobile-nav{display:flex;flex-direction:column;}
.mobile-nav a{
  font-size:1.5rem;
  font-weight:700;
  padding:18px 0;
  border-bottom:1px solid var(--line);
  opacity:0;
  transform:translateY(12px);
}
.mobile-menu.open .mobile-nav a{
  animation:fadeUp .36s var(--ease) forwards;
}
.mobile-menu.open .mobile-nav a:nth-child(1){animation-delay:.04s;}
.mobile-menu.open .mobile-nav a:nth-child(2){animation-delay:.08s;}
.mobile-menu.open .mobile-nav a:nth-child(3){animation-delay:.12s;}
.mobile-menu.open .mobile-nav a:nth-child(4){animation-delay:.16s;}
@keyframes fadeUp{
  to{opacity:1;transform:translateY(0);}
}

/* ---------- Hero ---------- */
.hero{padding:clamp(48px,7vw,88px) 0 clamp(40px,6vw,72px);}
.hero-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  align-items:start;
}
.hero-copy{grid-column:span 7;}
.hero-figure{grid-column:span 5;}
.hero-title{
  font-size:clamp(2.2rem,5.2vw,4.1rem);
  line-height:1.06;
  font-weight:800;
  letter-spacing:-0.02em;
  margin:16px 0 20px;
}
.hero-title .hl{
  background:linear-gradient(to top,var(--brand-soft) 40%,transparent 40%);
  padding:0 4px;
}
.hero-lead{
  font-size:1.0625rem;
  line-height:1.85;
  color:var(--ink-2);
  max-width:34em;
  margin-bottom:12px;
}
.hero-lead + .hero-lead{margin-bottom:26px;font-size:1rem;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px;}
.btn-main,.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--r-pill);
  font-size:.9375rem;
  font-weight:700;
  cursor:pointer;
  transition:background .3s var(--ease),color .3s var(--ease),transform .3s var(--ease),border-color .3s var(--ease);
}
.btn-main{background:var(--brand);color:#fff;border:1px solid var(--brand);}
.btn-main:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid var(--line);
  padding-top:22px;
}
.stat{
  padding:0 28px;
  border-left:1px solid var(--line);
}
.stat:first-child{padding-left:0;border-left:0;}
.stat b{
  display:block;
  font-size:1.5rem;
  font-weight:800;
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat span{font-size:.8125rem;color:var(--muted);letter-spacing:.04em;}
.hero-figure{
  position:relative;
  border-radius:var(--r-m);
  overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--sh-1);
  aspect-ratio:4/3;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure figcaption{
  position:absolute;
  left:14px;bottom:14px;
  background:rgba(23,26,23,.72);
  color:#fff;
  font-size:.75rem;
  letter-spacing:.06em;
  padding:6px 12px;
  border-radius:var(--r-pill);
  backdrop-filter:blur(4px);
}

/* ---------- 板块通用 ---------- */
.section{padding:clamp(56px,8vw,112px) 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  padding-bottom:20px;
  border-bottom:1px solid var(--line);
  margin-bottom:clamp(28px,4vw,44px);
}
.section-head h2{font-size:clamp(1.55rem,2.6vw,2.35rem);line-height:1.22;font-weight:700;}
.section-head p{color:var(--ink-2);font-size:.9375rem;margin-top:8px;max-width:44em;}
.link-more{
  font-size:.875rem;
  font-weight:700;
  color:var(--ink);
  display:inline-flex;
  align-items:center;
  gap:6px;
  white-space:nowrap;
  border-bottom:1px solid var(--line);
  padding-bottom:2px;
  transition:color .28s var(--ease),border-color .28s var(--ease);
}
.link-more .arrow{transition:transform .3s var(--ease);display:inline-block;}
.link-more:hover{color:var(--brand);border-color:var(--brand);}
.link-more:hover .arrow{transform:translateX(3px);}

/* ---------- 编号卖点 ---------- */
.points{border-top:1px solid var(--line);}
.point{
  display:grid;
  grid-template-columns:96px 1fr;
  gap:24px;
  padding:32px 0;
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease);
}
.point:hover{background:rgba(255,255,255,.55);}
.point-idx{
  font-size:clamp(1.9rem,3vw,2.6rem);
  font-weight:800;
  line-height:1;
  color:var(--line-strong);
  font-variant-numeric:tabular-nums;
  transition:color .3s var(--ease);
}
.point:hover .point-idx{color:var(--brand);}
.point-body h3{font-size:1.25rem;margin-bottom:8px;}
.point-body p{color:var(--ink-2);font-size:.9375rem;max-width:52em;}
.point-tag{
  display:inline-block;
  margin-top:12px;
  font-size:.75rem;
  letter-spacing:.06em;
  color:var(--brand-deep);
  background:var(--brand-soft);
  border-radius:var(--r-pill);
  padding:4px 12px;
}

/* ---------- 图墙 ---------- */
.bento{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:16px;
}
.bento-item{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-m);
  border:1px solid var(--line);
  background:var(--surface);
}
.bento-item img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .36s var(--ease),filter .36s var(--ease);
}
.bento-item::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(238,91,43,0) 40%,rgba(238,91,43,.28) 100%);
  opacity:0;
  transition:opacity .36s var(--ease);
  pointer-events:none;
}
.bento-item:hover img{transform:scale(1.02);}
.bento-item:hover::after{opacity:1;}
.bento-item .cap{
  position:absolute;
  left:14px;bottom:14px;
  z-index:2;
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.04em;
  color:#fff;
  background:rgba(23,26,23,.7);
  border-radius:var(--r-pill);
  padding:5px 12px;
}
.b1{grid-column:span 4;aspect-ratio:16/9;}
.b2{grid-column:span 2;aspect-ratio:1/1;}
.b3{grid-column:span 2;aspect-ratio:1/1;}
.b4{grid-column:span 4;aspect-ratio:16/9;}

/* ---------- 数据证据 ---------- */
.proof{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:clamp(28px,4vw,44px) 0;
}
.proof-item{padding-left:24px;border-left:1px solid var(--line);}
.proof-item:first-child{padding-left:0;border-left:0;}
.proof-item b{
  display:block;
  font-size:clamp(1.6rem,2.6vw,2.2rem);
  font-weight:800;
  font-variant-numeric:tabular-nums;
  line-height:1.2;
  margin-bottom:6px;
}
.proof-item b em{font-style:normal;font-size:.9rem;color:var(--muted);font-weight:500;margin-left:4px;}
.proof-item p{font-size:.875rem;color:var(--ink-2);}

/* ---------- 深色报名区 ---------- */
.signup{
  background:var(--deep);
  color:var(--deep-ink);
  padding:clamp(56px,8vw,100px) 0;
}
.signup-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:clamp(28px,4vw,56px);
  align-items:start;
}
.signup-copy{grid-column:span 7;}
.signup-form-wrap{grid-column:span 5;}
.signup .eyebrow{color:rgba(233,240,234,.6);}
.signup h2{
  color:#fff;
  font-size:clamp(1.55rem,2.6vw,2.35rem);
  line-height:1.22;
  margin:14px 0 16px;
}
.signup h2 .hl{color:var(--brand);}
.signup p{color:rgba(233,240,234,.78);font-size:.9375rem;max-width:40em;}
.signup-list{margin-top:26px;display:grid;gap:12px;}
.signup-list li{
  display:flex;gap:10px;
  font-size:.9375rem;
  color:rgba(233,240,234,.85);
  padding-bottom:12px;
  border-bottom:1px solid rgba(233,240,234,.14);
}
.signup-list li i{
  font-style:normal;
  color:var(--brand);
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.form-card{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(233,240,234,.18);
  border-radius:var(--r-m);
  padding:clamp(20px,3vw,30px);
}
.field{margin-bottom:20px;}
.field label{
  display:block;
  font-size:.8125rem;
  letter-spacing:.06em;
  color:rgba(233,240,234,.68);
  margin-bottom:6px;
}
.field input,.field select{
  width:100%;
  background:transparent;
  border:0;
  border-bottom:1px solid rgba(233,240,234,.35);
  border-radius:0;
  color:#fff;
  font-size:1rem;
  padding:8px 2px;
  transition:border-color .3s var(--ease);
  appearance:none;
}
.field select option{color:var(--ink);}
.field input::placeholder{color:rgba(233,240,234,.4);}
.field input:focus,.field select:focus{
  outline:none;
  border-bottom-color:var(--brand);
}
.btn-light{
  width:100%;
  background:#fff;
  color:var(--ink);
  border:1px solid #fff;
  border-radius:var(--r-pill);
  padding:14px 26px;
  font-size:.9375rem;
  font-weight:700;
  cursor:pointer;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease);
}
.btn-light:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-1px);}
.form-note{
  font-size:.8125rem;
  color:rgba(233,240,234,.55);
  margin-top:14px;
  line-height:1.7;
}
.form-msg{
  font-size:.8125rem;
  color:var(--brand);
  margin-top:12px;
  min-height:1.2em;
}

/* ---------- 最新信息 ---------- */
.news-list{display:grid;grid-template-columns:1fr;gap:0;border-top:1px solid var(--line);}
.news-item{
  display:grid;
  grid-template-columns:1fr auto;
  gap:16px 24px;
  align-items:start;
  padding:24px 0;
  border-bottom:1px solid var(--line);
  transition:transform .28s var(--ease);
}
.news-item:hover{transform:translateX(2px);}
.news-item:hover h3{text-decoration:underline;text-underline-offset:4px;}
.news-pill{
  display:inline-block;
  font-size:.75rem;
  letter-spacing:.04em;
  color:var(--brand-deep);
  background:var(--brand-soft);
  border-radius:var(--r-pill);
  padding:3px 12px;
  margin-bottom:10px;
}
.news-item h3{
  font-size:1.125rem;
  line-height:1.5;
  margin-bottom:6px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-item p{
  font-size:.9375rem;
  color:var(--ink-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  max-width:60em;
}
.news-side{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:10px;
  padding-top:4px;
}
.news-time{
  font-size:.8125rem;
  letter-spacing:.04em;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.news-arrow{
  width:34px;height:34px;
  border:1px solid var(--line-strong);
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:.875rem;
  color:var(--ink);
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
  flex:none;
}
.news-item:hover .news-arrow{background:var(--brand);border-color:var(--brand);color:#fff;}
.empty-state{
  border:1px dashed var(--line-strong);
  border-radius:var(--r-m);
  padding:44px 24px;
  text-align:center;
  color:var(--muted);
  font-size:.9375rem;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
}
.empty-state svg{width:20px;height:20px;stroke:var(--line-strong);fill:none;stroke-width:1.5;}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.faq details{
  border-bottom:1px solid var(--line);
  padding:0;
}
.faq summary{
  list-style:none;
  cursor:pointer;
  padding:22px 44px 22px 0;
  font-size:1.0625rem;
  font-weight:700;
  color:var(--ink);
  position:relative;
  min-height:44px;
  transition:color .28s var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--brand);}
.faq summary::after{
  content:"+";
  position:absolute;
  right:6px;
  top:50%;
  transform:translateY(-50%);
  font-size:1.375rem;
  font-weight:400;
  color:var(--muted);
  line-height:1;
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.faq details[open] summary::after{content:"−";color:var(--brand);transform:translateY(-50%) rotate(180deg);}
.faq .answer{
  padding:0 44px 24px 0;
  color:var(--ink-2);
  font-size:.9375rem;
  max-width:64em;
}
.faq-foot{margin-top:24px;font-size:.875rem;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--paper);
  border-top:1px solid var(--line);
  padding:clamp(48px,6vw,72px) 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:clamp(24px,4vw,48px);
  padding-bottom:clamp(32px,4vw,48px);
  border-bottom:1px solid var(--line);
}
.footer-brand .logo-mark{font-size:1.0625rem;}
.footer-brand p{
  margin-top:14px;
  font-size:.875rem;
  color:var(--ink-2);
  max-width:26em;
  line-height:1.8;
}
.footer-col h4{
  font-size:.8125rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
  font-weight:500;
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col li{
  font-size:.9375rem;
  color:var(--ink-2);
  transition:color .28s var(--ease);
}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:22px 0 28px;
  font-size:.8125rem;
  color:var(--muted);
  letter-spacing:.04em;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .36s var(--ease),transform .36s var(--ease);}
.reveal.in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .main-nav{gap:22px;}
}
@media (max-width:991.98px){
  .main-nav,.nav-cta{display:none;}
  .burger{display:inline-flex;}
  .nav-wrap{height:60px;}
  .hero-copy,.hero-figure{grid-column:span 12;}
  .hero-figure{order:-1;margin-bottom:8px;aspect-ratio:16/9;}
  .signup-copy,.signup-form-wrap{grid-column:span 12;}
  .bento{grid-template-columns:repeat(2,1fr);}
  .b1,.b2,.b3,.b4{grid-column:span 1;aspect-ratio:4/3;}
  .proof{grid-template-columns:1fr;gap:20px;}
  .proof-item{padding-left:0;border-left:0;padding-top:16px;border-top:1px solid var(--line);}
  .proof-item:first-child{padding-top:0;border-top:0;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .point{grid-template-columns:56px 1fr;gap:16px;padding:26px 0;}
  .news-item{grid-template-columns:1fr;}
  .news-side{flex-direction:row;align-items:center;justify-content:space-between;width:100%;}
  .hero-stats{gap:0;}
  .stat{padding:0 18px;}
}
@media (max-width:575.98px){
  .topbar-inner{font-size:.75rem;gap:8px;}
  .countdown .sec-part{display:none;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .hero-stats{flex-direction:column;gap:14px;}
  .stat{padding:0;border-left:0;}
  .bento{grid-template-columns:1fr;}
  .b1,.b2,.b3,.b4{aspect-ratio:4/3;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn-main,.btn-ghost,.btn-light{width:100%;}
}

/* roulang page: article */
:root{
  --paper:#F5F2EC;
  --surface:#FFFFFF;
  --line:#E3DED3;
  --line-strong:#C9C2B4;
  --ink:#171A17;
  --ink-2:#4A4F4A;
  --muted:#8A8F88;
  --brand:#EE5B2B;
  --brand-deep:#C2441A;
  --brand-soft:#FBE7DE;
  --deep:#123A32;
  --deep-ink:#E9F0EA;
  --r-s:4px;
  --r-m:8px;
  --r-pill:999px;
  --sp:8px;
  --sh-1:0 1px 0 rgba(23,26,23,.04), 0 10px 28px -20px rgba(23,26,23,.22);
  --sh-2:0 18px 44px -24px rgba(23,26,23,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:300ms;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:1rem;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--brand);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:var(--r-s);
}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:clamp(20px,4vw,48px);
  padding-right:clamp(20px,4vw,48px);
}
.eyebrow{
  font-size:.75rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  font-weight:500;
  font-variant-numeric:tabular-nums;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:.75rem;
  letter-spacing:.04em;
  border-radius:var(--r-pill);
  padding:4px 12px;
  font-weight:500;
  white-space:nowrap;
}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部倒计时条 ---------- */
.ticker{
  background:var(--deep);
  color:var(--deep-ink);
  min-height:44px;
  display:flex;
  align-items:center;
  overflow:hidden;
}
.ticker-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:44px;
  width:100%;
}
.ticker-label{
  font-size:.8125rem;
  letter-spacing:.04em;
  color:rgba(233,240,234,.86);
  display:inline-flex;
  align-items:center;
  gap:8px;
  white-space:nowrap;
}
.ticker-label::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);
  display:inline-block;
  flex:none;
}
.ticker-clock{
  display:flex;
  align-items:center;
  gap:6px;
  font-variant-numeric:tabular-nums;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.875rem;
  letter-spacing:.04em;
}
.ticker-clock .unit{display:inline-flex;align-items:baseline;gap:4px;}
.ticker-clock .unit b{
  font-weight:700;
  color:#fff;
  min-width:2ch;
  text-align:center;
  display:inline-block;
  transition:opacity 260ms var(--ease);
}
.ticker-clock .unit b.is-fade{opacity:.35;}
.ticker-clock i{font-style:normal;font-size:.75rem;color:rgba(233,240,234,.6);}
.ticker-clock .sep{color:rgba(233,240,234,.4);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(245,242,236,.94);
  backdrop-filter:saturate(120%) blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:none;
}
.brand .logo-mark{
  font-size:1.0625rem;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
}
.brand .logo-sub{
  font-size:.6875rem;
  letter-spacing:.16em;
  color:var(--muted);
  padding-top:2px;
}
.brand .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);
  display:inline-block;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:32px;
}
.main-nav a{
  font-size:.9375rem;
  font-weight:500;
  color:var(--ink);
  position:relative;
  padding:6px 0;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:1px;
  background:var(--line-strong);
  transform:scaleX(1);
  transform-origin:left;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.main-nav a:hover::after{background:var(--brand);}
.main-nav a:hover{color:var(--brand);}
.main-nav a.is-active{color:var(--ink);}
.main-nav a.is-active::after{background:var(--brand);height:2px;bottom:-4px;}
.header-cta{
  flex:none;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.875rem;
  font-weight:700;
  padding:10px 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--ink);
  color:var(--ink);
  background:transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.header-cta:hover{
  background:var(--ink);
  color:#fff;
  border-color:var(--ink);
  transform:translateY(-1px);
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line-strong);
  background:transparent;
  border-radius:var(--r-s);
  align-items:center;
  justify-content:center;
  cursor:pointer;
  flex:none;
}
.nav-toggle span{
  display:block;
  width:18px;height:1.5px;
  background:var(--ink);
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:1.5px;
  background:var(--ink);
  transition:transform var(--dur) var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.drawer{
  position:fixed;
  inset:0;
  background:var(--paper);
  z-index:120;
  transform:translateY(-100%);
  transition:transform var(--dur) var(--ease);
  display:flex;
  flex-direction:column;
  padding:20px clamp(20px,5vw,40px) 40px;
  overflow-y:auto;
  visibility:hidden;
}
.drawer.is-open{transform:translateY(0);visibility:visible;}
.drawer-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:60px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:44px;height:44px;
  border:1px solid var(--line-strong);
  background:transparent;
  border-radius:var(--r-s);
  font-size:1.25rem;
  line-height:1;
  color:var(--ink);
  cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;padding-top:12px;}
.drawer-nav a{
  font-size:1.5rem;
  font-weight:700;
  padding:18px 0;
  border-bottom:1px solid var(--line);
  color:var(--ink);
  opacity:0;
  transform:translateY(12px);
  transition:opacity 320ms var(--ease),transform 320ms var(--ease),color var(--dur) var(--ease);
}
.drawer.is-open .drawer-nav a{opacity:1;transform:translateY(0);}
.drawer.is-open .drawer-nav a:nth-child(1){transition-delay:40ms;}
.drawer.is-open .drawer-nav a:nth-child(2){transition-delay:80ms;}
.drawer.is-open .drawer-nav a:nth-child(3){transition-delay:120ms;}
.drawer.is-open .drawer-nav a:nth-child(4){transition-delay:160ms;}
.drawer-nav a.is-active{color:var(--brand);}
.drawer-foot{
  margin-top:auto;
  padding-top:28px;
  font-size:.8125rem;
  color:var(--muted);
  line-height:1.9;
}

/* ---------- 面包屑 ---------- */
.crumbs-wrap{
  border-bottom:1px solid var(--line);
  background:var(--paper);
}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:14px 0;
  font-size:.8125rem;
  letter-spacing:.02em;
  color:var(--muted);
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--line-strong);}
.crumbs .current{color:var(--ink);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章标题区 ---------- */
.article-head{padding:clamp(36px,6vw,72px) 0 clamp(24px,3vw,36px);}
.article-head .pill{margin-bottom:20px;}
.article-head h1{
  font-size:clamp(1.9rem,4.2vw,3.15rem);
  line-height:1.16;
  font-weight:800;
  letter-spacing:-.02em;
  max-width:22ch;
  color:var(--ink);
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  margin-top:22px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:.8125rem;
  letter-spacing:.04em;
  color:var(--muted);
}
.meta-row .num{color:var(--ink-2);font-weight:500;}
.meta-row .dot-sep{width:4px;height:4px;border-radius:50%;background:var(--line-strong);}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,720px) 260px;
  gap:clamp(32px,5vw,72px);
  justify-content:center;
  padding-bottom:clamp(56px,8vw,112px);
  align-items:start;
}
.article-main{min-width:0;}
.article-body{
  font-size:1.0625rem;
  line-height:1.9;
  color:var(--ink-2);
  padding-top:clamp(24px,3vw,36px);
}
.article-body h2{
  position:relative;
  margin:2.4em 0 .9em;
  padding-left:16px;
  font-size:clamp(1.3rem,2.1vw,1.65rem);
  line-height:1.4;
  color:var(--ink);
  font-weight:700;
  letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.28em;bottom:.28em;
  width:3px;
  background:var(--brand);
  border-radius:2px;
}
.article-body h3{
  margin:1.9em 0 .6em;
  font-size:1.15rem;
  line-height:1.5;
  color:var(--ink);
  font-weight:700;
}
.article-body p{margin:0 0 1.15em;}
.article-body a{color:var(--brand-deep);border-bottom:1px solid var(--brand-soft);}
.article-body a:hover{color:var(--brand);border-bottom-color:var(--brand);}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:1.3em;}
.article-body ul li{list-style:none;position:relative;padding-left:18px;margin-bottom:.5em;line-height:1.85;}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:0;top:.85em;
  width:6px;height:1.5px;
  background:var(--brand);
}
.article-body ol{list-style:decimal;}
.article-body ol li{margin-bottom:.5em;line-height:1.85;padding-left:4px;}
.article-body ol li::marker{color:var(--brand);font-weight:700;}
.article-body blockquote{
  margin:1.6em 0;
  padding:20px 24px;
  border-left:2px solid var(--brand);
  background:rgba(251,231,222,.3);
  color:var(--ink);
  border-radius:0 var(--r-s) var(--r-s) 0;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--r-m);
  margin:1.6em auto;
  border:1px solid var(--line);
}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{
  text-align:center;
  font-size:.8125rem;
  color:var(--muted);
  margin-top:10px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:.9375rem;
  background:transparent;
}
.article-body th,.article-body td{
  border:0;
  border-bottom:1px solid var(--line);
  padding:12px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{
  color:var(--ink);
  font-weight:700;
  border-bottom:1px solid var(--line-strong);
}
.article-body hr{
  border:0;
  border-top:1px solid var(--line);
  margin:2.4em 0;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.9em;
  background:var(--brand-soft);
  color:var(--brand-deep);
  padding:2px 6px;
  border-radius:var(--r-s);
}

/* ---------- 目录 ---------- */
.toc-wrap{position:sticky;top:96px;align-self:start;}
.toc-box{
  border-top:1px solid var(--line-strong);
  padding-top:16px;
}
.toc-title{
  font-size:.75rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:14px;
}
.toc-list{display:flex;flex-direction:column;}
.toc-list a{
  display:block;
  font-size:.875rem;
  line-height:1.6;
  color:var(--ink-2);
  padding:8px 0 8px 12px;
  border-left:2px solid transparent;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.toc-list a:hover{color:var(--brand);}
.toc-list a.is-current{
  color:var(--brand-deep);
  border-left-color:var(--brand);
  font-weight:500;
}
.toc-hint{
  font-size:.8125rem;
  color:var(--muted);
  line-height:1.8;
  margin-top:8px;
}
.toc-toggle{
  display:none;
  width:100%;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px 16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  font-size:.9375rem;
  font-weight:700;
  color:var(--ink);
  cursor:pointer;
  min-height:44px;
}
.toc-toggle .chev{
  width:8px;height:8px;
  border-right:1.5px solid var(--ink);
  border-bottom:1.5px solid var(--ink);
  transform:rotate(45deg);
  transition:transform var(--dur) var(--ease);
}
.toc-toggle[aria-expanded="true"] .chev{transform:rotate(-135deg);}

/* ---------- 相关推荐 ---------- */
.related{
  margin-top:clamp(40px,6vw,72px);
  border-top:1px solid var(--line-strong);
  padding-top:24px;
}
.related-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  margin-bottom:8px;
}
.related-head h2{
  font-size:1.15rem;
  font-weight:700;
  color:var(--ink);
}
.related-list{display:flex;flex-direction:column;}
.related-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  transition:transform var(--dur) var(--ease);
}
.related-item:hover{transform:translateX(2px);}
.related-item .rt{
  display:flex;
  flex-direction:column;
  gap:4px;
  min-width:0;
}
.related-item h3{
  font-size:1rem;
  font-weight:700;
  line-height:1.5;
  color:var(--ink);
}
.related-item .rdate{
  font-size:.8125rem;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.related-item .arrow{
  flex:none;
  color:var(--brand);
  font-size:1rem;
  transition:transform var(--dur) var(--ease);
}
.related-item:hover .arrow{transform:translateX(3px);}

.article-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:32px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--r-pill);
  font-size:.9375rem;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn-primary-c{
  background:var(--brand);
  color:#fff;
  border-color:var(--brand);
}
.btn-primary-c:hover{
  background:var(--brand-deep);
  border-color:var(--brand-deep);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-1);
}
.btn-ghost-c{
  background:transparent;
  color:var(--ink);
  border-color:var(--ink);
}
.btn-ghost-c:hover{
  background:var(--ink);
  color:#fff;
  transform:translateY(-1px);
}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed var(--line-strong);
  border-radius:var(--r-m);
  padding:clamp(32px,5vw,56px) 24px;
  text-align:center;
  background:var(--surface);
}
.empty-state .icon{
  width:36px;height:36px;
  margin:0 auto 16px;
  border:1.5px solid var(--line-strong);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--muted);
  font-size:1.1rem;
}
.empty-state h2{
  font-size:1.15rem;
  color:var(--ink);
  margin-bottom:8px;
}
.empty-state p{
  font-size:.9375rem;
  color:var(--ink-2);
  margin-bottom:20px;
}
.empty-state a.link-line{
  color:var(--brand-deep);
  border-bottom:1px solid var(--brand-soft);
  padding-bottom:2px;
}
.empty-state a.link-line:hover{border-bottom-color:var(--brand);color:var(--brand);}

/* ---------- 阅读提示条 ---------- */
.readnote{
  margin-top:clamp(32px,4vw,48px);
  border:1px solid var(--line);
  border-left:3px solid var(--brand);
  background:var(--surface);
  border-radius:var(--r-m);
  padding:20px 24px;
  font-size:.9375rem;
  color:var(--ink-2);
  line-height:1.8;
}
.readnote strong{color:var(--ink);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--deep);
  color:var(--deep-ink);
  padding:clamp(48px,7vw,80px) 0 0;
  margin-top:clamp(24px,4vw,48px);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:clamp(32px,5vw,56px);
  border-bottom:1px solid rgba(233,240,234,.16);
}
.footer-brand .logo-mark{
  font-size:1.125rem;
  font-weight:800;
  color:#fff;
  letter-spacing:-.01em;
}
.footer-brand .logo-sub{
  font-size:.6875rem;
  letter-spacing:.16em;
  color:rgba(233,240,234,.6);
  margin-left:8px;
}
.footer-brand p{
  margin-top:16px;
  font-size:.875rem;
  line-height:1.9;
  color:rgba(233,240,234,.72);
  max-width:34ch;
}
.footer-col h4{
  font-size:.75rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:rgba(233,240,234,.55);
  font-weight:600;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col li{
  font-size:.875rem;
  color:rgba(233,240,234,.82);
  line-height:1.7;
}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 0;
  font-size:.8125rem;
  color:rgba(233,240,234,.6);
  letter-spacing:.02em;
}

/* ---------- 入场动效 ---------- */
.fade-up{
  opacity:0;
  transform:translateY(12px);
  transition:opacity 360ms var(--ease),transform 360ms var(--ease);
}
.fade-up.is-in{opacity:1;transform:translateY(0);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,660px) 240px;gap:40px;}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{height:60px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc-wrap{position:static;order:-1;margin-bottom:24px;}
  .toc-box{display:none;margin-top:12px;border-top:0;padding-top:0;}
  .toc-box.is-open{display:block;}
  .toc-toggle{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .article-head h1{max-width:none;}
  .crumbs .current{max-width:32ch;}
  .ticker-clock .unit i{display:none;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:575px){
  .ticker-clock .unit.sec{display:none;}
  .ticker-clock .sep.sec-sep{display:none;}
  .ticker-label{font-size:.75rem;}
  .btn{width:100%;}
  .article-actions .btn{width:100%;}
  .article-body{font-size:1rem;}
  .related-item{align-items:flex-start;}
  .related-item h3{font-size:.9375rem;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .fade-up{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --paper:#F5F2EC;
  --surface:#FFFFFF;
  --line:#E3DED3;
  --line-strong:#C9C2B4;
  --ink:#171A17;
  --ink-2:#4A4F4A;
  --muted:#8A8F88;
  --brand:#EE5B2B;
  --brand-deep:#C2441A;
  --brand-soft:#FBE7DE;
  --deep:#123A32;
  --deep-ink:#E9F0EA;
  --r-s:4px;
  --r-m:8px;
  --r-pill:999px;
  --sh-1:0 1px 0 rgba(23,26,23,.04),0 10px 28px -20px rgba(23,26,23,.22);
  --sh-2:0 18px 44px -24px rgba(23,26,23,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:1rem;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink);text-decoration:none;transition:color .28s var(--ease);}
a:hover{color:var(--brand);}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:var(--r-s);
}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{
  width:100%;
  max-width:var(--maxw)!important;
  margin:0 auto;
  padding-left:clamp(20px,4vw,48px)!important;
  padding-right:clamp(20px,4vw,48px)!important;
}
.section{padding:clamp(56px,8vw,112px) 0;}
.section--tight{padding:clamp(40px,5vw,72px) 0;}
.eyebrow{
  display:inline-block;
  font-size:.75rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  font-weight:700;
  margin-bottom:18px;
}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
  margin-bottom:clamp(28px,4vw,48px);
  flex-wrap:wrap;
}
.sec-head h2{
  font-size:clamp(1.55rem,2.6vw,2.35rem);
  line-height:1.22;
  letter-spacing:-.01em;
  font-weight:700;
}
.sec-head .sec-note{font-size:.875rem;color:var(--muted);margin:0;}
.lead{color:var(--ink-2);font-size:1.0625rem;line-height:1.9;max-width:46em;}

/* ---------- 顶部倒计时条 ---------- */
.countdown-bar{background:var(--deep);color:var(--deep-ink);}
.countdown-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:44px;
  padding-top:8px;
  padding-bottom:8px;
  flex-wrap:wrap;
}
.countdown-label{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:.8125rem;
  letter-spacing:.04em;
  color:var(--deep-ink);
}
.countdown-label .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);
  flex:none;
  box-shadow:0 0 0 4px rgba(238,91,43,.18);
}
.countdown-clock{
  display:flex;
  align-items:center;
  gap:8px;
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
  font-family:"Noto Sans SC",ui-monospace,SFMono-Regular,Menlo,monospace;
}
.cd-unit{display:inline-flex;align-items:baseline;gap:4px;}
.cd-unit b{
  font-size:1.0625rem;
  font-weight:700;
  color:#fff;
  min-width:2ch;
  text-align:center;
  display:inline-block;
  transition:opacity .3s var(--ease);
}
.cd-unit i{font-style:normal;font-size:.75rem;color:rgba(233,240,234,.72);}
.cd-sep{color:rgba(233,240,234,.5);font-size:.875rem;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  min-height:72px;
}
.logo{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  flex:none;
}
.logo-mark{
  font-size:1.25rem;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
}
.logo-sub{
  font-size:.75rem;
  letter-spacing:.12em;
  color:var(--muted);
  font-weight:500;
}
.logo-dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);
  display:inline-block;
  margin-left:2px;
  transform:translateY(-4px);
}
.main-nav{
  display:flex;
  align-items:center;
  gap:32px;
  flex:1;
  justify-content:center;
}
.main-nav a{
  position:relative;
  font-size:.9375rem;
  font-weight:500;
  color:var(--ink);
  padding:6px 0;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .3s var(--ease);
}
.main-nav a:hover::after,
.main-nav a:focus-visible::after,
.main-nav a[aria-current="page"]::after{transform:scaleX(1);}
.main-nav a[aria-current="page"]{font-weight:700;}
.header-actions{display:flex;align-items:center;gap:12px;flex:none;}
.btn-pill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 22px;
  border-radius:var(--r-pill);
  border:1px solid var(--ink);
  background:transparent;
  color:var(--ink);
  font-size:.875rem;
  font-weight:700;
  transition:background .28s var(--ease),color .28s var(--ease),transform .28s var(--ease),border-color .28s var(--ease);
}
.btn-pill:hover{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  transform:translateY(-1px);
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line-strong);
  border-radius:var(--r-s);
  background:transparent;
  color:var(--ink);
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:currentColor;
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  background:currentColor;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动端全屏菜单 */
.mobile-menu{
  position:fixed;
  inset:0;
  background:var(--paper);
  z-index:1100;
  display:none;
  flex-direction:column;
  padding:24px clamp(20px,5vw,40px) 40px;
  overflow-y:auto;
}
.mobile-menu.open{display:flex;}
.mobile-menu-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:20px;
  border-bottom:1px solid var(--line);
  margin-bottom:12px;
}
.mobile-close{
  width:44px;height:44px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-s);
  background:transparent;
  color:var(--ink);
  font-size:1.25rem;
  line-height:1;
}
.mobile-menu nav{display:flex;flex-direction:column;}
.mobile-menu nav a{
  font-size:1.5rem;
  font-weight:700;
  padding:20px 0;
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  animation:menuIn .36s var(--ease) both;
}
.mobile-menu nav a:nth-child(2){animation-delay:.04s;}
.mobile-menu nav a:nth-child(3){animation-delay:.08s;}
.mobile-menu nav a:nth-child(4){animation-delay:.12s;}
.mobile-menu nav a span{color:var(--muted);font-size:1rem;font-weight:400;}
.mobile-menu .mobile-cta{
  margin-top:28px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:15px 26px;
  border-radius:var(--r-pill);
  background:var(--brand);
  color:#fff;
  font-weight:700;
}
@keyframes menuIn{
  from{opacity:0;transform:translateY(12px);}
  to{opacity:1;transform:none;}
}

/* ---------- 分类页首屏 ---------- */
.topic-hero{padding-top:clamp(40px,6vw,72px);padding-bottom:clamp(32px,5vw,64px);}
.topic-hero h1{
  font-size:clamp(2.2rem,5.2vw,4.1rem);
  line-height:1.06;
  font-weight:800;
  letter-spacing:-.02em;
  margin-bottom:24px;
  max-width:16em;
}
.topic-hero h1 .hl{
  background:linear-gradient(to top,var(--brand-soft) 40%,transparent 40%);
  padding:0 .06em;
}
.topic-hero .lead{max-width:44em;}
.hero-metrics{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  margin-top:clamp(32px,4vw,48px);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.metric{
  padding:20px 24px 20px 0;
  border-right:1px solid var(--line);
}
.metric:last-child{border-right:0;}
.metric b{
  display:block;
  font-size:1.35rem;
  font-weight:800;
  letter-spacing:-.01em;
  font-variant-numeric:tabular-nums;
  margin-bottom:2px;
}
.metric span{font-size:.8125rem;letter-spacing:.04em;color:var(--muted);}
.mini-countdown{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-top:28px;
  padding:10px 18px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-pill);
  font-size:.8125rem;
  color:var(--ink-2);
  font-variant-numeric:tabular-nums;
}
.mini-countdown .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);}

/* ---------- 编号卖点 ---------- */
.numbered-list{border-top:1px solid var(--line);}
.numbered-list li{
  display:grid;
  grid-template-columns:92px minmax(0,1fr);
  gap:clamp(16px,3vw,32px);
  padding:clamp(24px,3.4vw,36px) 0;
  border-bottom:1px solid var(--line);
  transition:background .28s var(--ease);
}
.numbered-list li:hover{background:rgba(255,255,255,.6);}
.numbered-list .num{
  font-size:clamp(1.6rem,3vw,2.4rem);
  font-weight:800;
  line-height:1;
  letter-spacing:-.02em;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  padding-top:4px;
}
.numbered-list h3{
  font-size:clamp(1.15rem,1.6vw,1.35rem);
  line-height:1.45;
  margin-bottom:10px;
}
.numbered-list p{color:var(--ink-2);margin:0;max-width:52em;}

/* ---------- 双列图墙 ---------- */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.figure-card{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  background:var(--surface);
}
.figure-card .media{
  aspect-ratio:4/3;
  overflow:hidden;
}
.figure-card img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .36s var(--ease);
}
.figure-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(238,91,43,0);
  transition:background .3s var(--ease);
  pointer-events:none;
}
.figure-card:hover img{transform:scale(1.02);}
.figure-card:hover::after{background:rgba(238,91,43,.08);}
.figure-card figcaption{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px 18px;
  border-top:1px solid var(--line);
  font-size:.8125rem;
  letter-spacing:.04em;
  color:var(--muted);
  background:var(--surface);
}
.figure-card figcaption b{color:var(--ink);font-weight:700;font-size:.875rem;letter-spacing:0;}

/* ---------- 参与条件 ---------- */
.cond-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:clamp(24px,4vw,48px);
  align-items:start;
}
.cond-list li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  color:var(--ink-2);
}
.cond-list li:first-child{padding-top:0;}
.cond-list li::before{
  content:"";
  flex:none;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--brand);
  margin-top:.7em;
}
.cond-list strong{color:var(--ink);font-weight:700;}
.tip-box{
  background:var(--brand-soft);
  border-left:3px solid var(--brand);
  border-radius:0 var(--r-m) var(--r-m) 0;
  padding:24px 26px;
}
.tip-box h3{font-size:1.15rem;margin-bottom:10px;}
.tip-box p{margin:0;color:var(--ink-2);font-size:.9375rem;}
.tip-box p + p{margin-top:10px;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  position:relative;
  cursor:pointer;
  padding:20px 48px 20px 0;
  font-weight:700;
  font-size:1.0625rem;
  line-height:1.5;
  min-height:44px;
  display:flex;
  align-items:center;
  transition:color .28s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-deep);}
.faq-item summary::before{
  content:"";
  position:absolute;
  right:10px;top:50%;
  width:12px;height:2px;
  background:var(--ink);
  transform:translateY(-50%);
  transition:background .28s var(--ease);
}
.faq-item summary::after{
  content:"";
  position:absolute;
  right:15px;top:calc(50% - 5px);
  width:2px;height:12px;
  background:var(--ink);
  transition:transform .28s var(--ease),opacity .28s var(--ease),background .28s var(--ease);
}
.faq-item[open] summary::before{background:var(--brand);}
.faq-item[open] summary::after{transform:rotate(90deg);opacity:0;background:var(--brand);}
.faq-body{
  padding:0 48px 22px 0;
  color:var(--ink-2);
  font-size:.9688rem;
  line-height:1.9;
  animation:fadeUp .3s var(--ease) both;
}
.faq-body p:last-child{margin-bottom:0;}

/* ---------- 深色 CTA 横条 ---------- */
.cta-band{
  background:var(--deep);
  color:var(--deep-ink);
  border-radius:var(--r-m);
  padding:clamp(32px,5vw,56px);
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:32px;
  align-items:center;
}
.cta-band h2{
  color:#fff;
  font-size:clamp(1.55rem,2.6vw,2.15rem);
  line-height:1.22;
  letter-spacing:-.01em;
  margin-bottom:12px;
}
.cta-band p{
  margin:0;
  color:rgba(233,240,234,.82);
  max-width:38em;
  font-size:.9688rem;
}
.cta-band .btn-light{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:15px 30px;
  border-radius:var(--r-pill);
  background:#fff;
  color:var(--ink);
  font-weight:700;
  white-space:nowrap;
  transition:background .28s var(--ease),color .28s var(--ease),transform .28s var(--ease);
}
.cta-band .btn-light:hover{background:var(--brand);color:#fff;transform:translateY(-1px);}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  margin-top:clamp(56px,8vw,112px);
  padding:clamp(40px,6vw,72px) 0 24px;
  background:var(--paper);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:clamp(24px,4vw,48px);
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.footer-brand .logo-mark{display:inline-block;font-size:1.125rem;font-weight:800;}
.footer-brand .logo-sub{display:inline-block;margin-left:8px;font-size:.75rem;letter-spacing:.12em;color:var(--muted);}
.footer-brand p{
  margin:16px 0 0;
  font-size:.875rem;
  color:var(--ink-2);
  line-height:1.9;
  max-width:30em;
}
.footer-col h4{
  font-size:.8125rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--muted);
  font-weight:700;
  margin-bottom:16px;
}
.footer-col ul li{font-size:.9375rem;color:var(--ink-2);padding:6px 0;}
.footer-col ul li a{color:var(--ink-2);}
.footer-col ul li a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:22px;
  font-size:.8125rem;
  letter-spacing:.04em;
  color:var(--muted);
  flex-wrap:wrap;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);}
.reveal.in{opacity:1;transform:none;transition:opacity .36s var(--ease),transform .36s var(--ease);}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(8px);}
  to{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .main-nav{gap:24px;}
}
@media (max-width:991.98px){
  .main-nav{display:none;}
  .header-actions .btn-pill{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{min-height:60px;}
  .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric{border-bottom:1px solid var(--line);}
  .metric:nth-child(2n){border-right:0;}
  .metric:nth-last-child(-n+2){border-bottom:0;}
  .cond-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{grid-template-columns:minmax(0,1fr);align-items:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767.98px){
  .gallery-grid{grid-template-columns:minmax(0,1fr);}
  .numbered-list li{grid-template-columns:56px minmax(0,1fr);}
  .topic-hero h1{max-width:none;}
  .sec-head{align-items:flex-start;}
}
@media (max-width:575.98px){
  .countdown-clock .cd-sec{display:none;}
  .countdown-inner{gap:12px;}
  .hero-metrics{grid-template-columns:minmax(0,1fr);}
  .metric{border-right:0;padding-right:0;}
  .metric:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band .btn-light{width:100%;}
  .faq-body{padding-right:0;}
  .aside-cta{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    scroll-behavior:auto!important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --paper:#F5F2EC;
  --surface:#FFFFFF;
  --line:#E3DED3;
  --line-strong:#C9C2B4;
  --ink:#171A17;
  --ink-2:#4A4F4A;
  --muted:#8A8F88;
  --brand:#EE5B2B;
  --brand-deep:#C2441A;
  --brand-soft:#FBE7DE;
  --deep:#123A32;
  --deep-ink:#E9F0EA;
  --r-s:4px;
  --r-m:8px;
  --r-pill:999px;
  --sh-1:0 1px 0 rgba(23,26,23,.04),0 10px 28px -20px rgba(23,26,23,.22);
  --sh-2:0 18px 44px -24px rgba(23,26,23,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sec:clamp(56px,8vw,112px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:1rem;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none;transition:color .28s var(--ease)}
a:hover{color:var(--brand)}
a:focus-visible,button:focus-visible,select:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:var(--r-s);
}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0 0 1.15em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:clamp(20px,4vw,48px);padding-right:clamp(20px,4vw,48px)}

/* ---------- 顶部状态条 ---------- */
.topbar{background:var(--deep);color:var(--deep-ink);min-height:44px;display:flex;align-items:center;overflow:hidden}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:44px}
.topbar-label{font-size:.8125rem;letter-spacing:.04em;color:var(--deep-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-label b{color:#fff;font-weight:700}
.countdown{display:flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.875rem;letter-spacing:.06em;white-space:nowrap}
.countdown span.num{color:#fff;min-width:2ch;text-align:center;transition:opacity .24s var(--ease)}
.countdown span.num.fade{opacity:.35}
.countdown .sep{color:rgba(233,240,234,.45)}
.countdown .unit{color:rgba(233,240,234,.6);font-size:.75rem;margin-left:2px}

/* ---------- 导航 ---------- */
.site-header{background:var(--paper);border-bottom:1px solid var(--line);position:relative;z-index:40}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.logo{display:inline-flex;align-items:baseline;gap:8px;font-weight:800;letter-spacing:-.02em;font-size:1.25rem;color:var(--ink)}
.logo:hover{color:var(--ink)}
.logo .logo-mark{position:relative}
.logo .logo-mark::after{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--brand);margin-left:6px;transform:translateY(-6px)}
.logo .logo-sub{font-size:.75rem;font-weight:500;color:var(--muted);letter-spacing:.16em}
.main-nav{display:flex;align-items:center;gap:32px}
.main-nav a{font-size:.9375rem;font-weight:500;color:var(--ink);padding:6px 0;position:relative}
.main-nav a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand);transition:width .3s var(--ease)}
.main-nav a:hover::after{width:100%}
.main-nav a[aria-current="page"]{color:var(--ink);font-weight:700}
.main-nav a[aria-current="page"]::after{width:100%}
.nav-cta{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line-strong);border-radius:var(--r-pill);padding:9px 20px;font-size:.875rem;font-weight:700;color:var(--ink);transition:all .3s var(--ease)}
.nav-cta:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-m);background:transparent;color:var(--ink);align-items:center;justify-content:center}
.nav-toggle svg{width:20px;height:20px;stroke:currentColor;stroke-width:1.5;fill:none}
.mobile-overlay{position:fixed;inset:0;background:var(--paper);z-index:80;display:none;padding:24px clamp(20px,4vw,48px) 40px;flex-direction:column}
.mobile-overlay.open{display:flex}
.mobile-overlay .mo-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.mobile-overlay .mo-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-m);background:transparent;display:flex;align-items:center;justify-content:center}
.mobile-overlay .mo-close svg{width:20px;height:20px;stroke:var(--ink);stroke-width:1.5;fill:none}
.mobile-overlay nav{display:flex;flex-direction:column;margin-top:12px}
.mobile-overlay nav a{font-size:1.5rem;font-weight:700;padding:20px 0;border-bottom:1px solid var(--line);opacity:0;transform:translateY(12px);animation:fadeUp .32s var(--ease) forwards}
.mobile-overlay nav a:nth-child(1){animation-delay:.04s}
.mobile-overlay nav a:nth-child(2){animation-delay:.08s}
.mobile-overlay nav a:nth-child(3){animation-delay:.12s}
.mobile-overlay nav a:nth-child(4){animation-delay:.16s}
.mobile-overlay .mo-foot{margin-top:auto;font-size:.8125rem;color:var(--muted);letter-spacing:.04em}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--paper)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--muted);letter-spacing:.04em;padding:14px 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--line-strong)}
.crumb .current{color:var(--ink)}

/* ---------- 版块通用 ---------- */
.section{padding:var(--sec) 0}
.eyebrow{font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:14px}
h1{font-size:clamp(2.2rem,5.2vw,4.1rem);line-height:1.06;font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.55rem,2.6vw,2.35rem);line-height:1.22;font-weight:700}
h3{font-size:1.2rem;line-height:1.45;font-weight:700}
.lead{font-size:1.0625rem;line-height:1.9;color:var(--ink-2);max-width:760px}
.mark{background:linear-gradient(transparent 60%,var(--brand-soft) 60%)}
.pill{display:inline-flex;align-items:center;background:var(--brand-soft);color:var(--brand-deep);font-size:.75rem;font-weight:700;letter-spacing:.04em;border-radius:var(--r-pill);padding:4px 12px}
.pill.dark{background:rgba(255,255,255,.14);color:#fff}

/* ---------- 文档头部 ---------- */
.doc-hero{padding:clamp(40px,6vw,72px) 0 clamp(24px,3vw,36px)}
.doc-hero h1{margin:14px 0 18px;max-width:20ch}
.doc-hero .lead{max-width:820px}
.hero-meta{display:flex;flex-wrap:wrap;gap:0;margin-top:clamp(24px,3vw,36px);border-top:1px solid var(--line);padding-top:20px}
.hero-meta div{padding-right:clamp(18px,3vw,40px);margin-right:clamp(18px,3vw,40px);border-right:1px solid var(--line)}
.hero-meta div:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-meta strong{display:block;font-size:1.15rem;font-variant-numeric:tabular-nums;font-weight:700}
.hero-meta span{font-size:.8125rem;color:var(--muted);letter-spacing:.04em}

/* ---------- 文档布局 ---------- */
.doc-layout{display:grid;grid-template-columns:minmax(0,260px) minmax(0,1fr);gap:clamp(28px,4vw,64px);padding-bottom:var(--sec);align-items:start}
.doc-aside{position:sticky;top:24px}
.aside-title{font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:14px}
.anchor-list{border-left:1px solid var(--line)}
.anchor-list a{display:block;padding:10px 0 10px 16px;font-size:.9375rem;color:var(--ink-2);border-left:2px solid transparent;margin-left:-1px;transition:all .28s var(--ease)}
.anchor-list a:hover{color:var(--brand);border-left-color:var(--line-strong)}
.anchor-list a.active{color:var(--ink);font-weight:700;border-left-color:var(--brand)}
.anchor-list a .idx{font-variant-numeric:tabular-nums;font-family:ui-monospace,monospace;font-size:.8125rem;color:var(--muted);margin-right:8px}
.mobile-anchor{display:none;margin-bottom:20px}
.mobile-anchor label{display:block;font-size:.8125rem;letter-spacing:.04em;color:var(--muted);margin-bottom:8px}
.mobile-anchor select{
  width:100%;appearance:none;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-m);padding:13px 40px 13px 16px;font-size:.9375rem;color:var(--ink);
  background-image:url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%23171A17' stroke-width='1.5'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;
}
.doc-body{min-width:0}
.callout{background:var(--brand-soft);border-left:3px solid var(--brand);border-radius:0 var(--r-m) var(--r-m) 0;padding:20px 24px;margin:0 0 clamp(28px,4vw,40px)}
.callout h3{font-size:1.05rem;margin-bottom:8px}
.callout p{margin:0;font-size:.9375rem;color:var(--ink-2);line-height:1.85}

/* ---------- 条款区块 ---------- */
.clause{padding-top:clamp(28px,3.5vw,44px);margin-top:clamp(28px,3.5vw,44px);border-top:1px solid var(--line)}
.clause:first-of-type{border-top:0;margin-top:0;padding-top:0}
.clause h2{display:flex;align-items:baseline;gap:14px;font-size:clamp(1.35rem,2.2vw,1.85rem);margin-bottom:16px}
.clause h2 .num{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums;font-size:clamp(1rem,1.6vw,1.15rem);color:var(--brand);font-weight:700;letter-spacing:.02em;flex:none}
.clause p{font-size:1rem;line-height:1.9;color:var(--ink-2)}
.clause p:last-child{margin-bottom:0}
.clause ul.plain{margin:8px 0 18px}
.clause ul.plain li{position:relative;padding-left:20px;font-size:1rem;line-height:1.9;color:var(--ink-2);margin-bottom:6px}
.clause ul.plain li::before{content:"";position:absolute;left:4px;top:.85em;width:6px;height:1px;background:var(--brand)}
.doc-figure{margin:22px 0 26px}
.doc-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-m);border:1px solid var(--line)}
.doc-figure figcaption{font-size:.8125rem;color:var(--muted);letter-spacing:.04em;margin-top:10px;text-align:center}

/* ---------- 手风琴 ---------- */
.faq-list{border-top:1px solid var(--line);margin-top:8px}
.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:16px;
  padding:18px 0;min-height:44px;font-size:1rem;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .sign{flex:none;width:18px;height:18px;position:relative}
.faq-item summary .sign::before,.faq-item summary .sign::after{content:"";position:absolute;background:var(--ink);transition:transform .24s var(--ease),background .24s var(--ease)}
.faq-item summary .sign::before{left:0;top:8px;width:18px;height:1.5px}
.faq-item summary .sign::after{top:0;left:8px;width:1.5px;height:18px}
.faq-item[open] summary .sign::after{transform:rotate(90deg);opacity:0}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary:hover .sign::before,.faq-item summary:hover .sign::after{background:var(--brand)}
.faq-body{padding:0 0 18px;font-size:.9375rem;line-height:1.9;color:var(--ink-2);max-width:70ch}

/* ---------- 页尾文字入口 ---------- */
.doc-end{display:flex;flex-wrap:wrap;gap:14px 32px;margin-top:clamp(32px,4vw,48px);padding-top:24px;border-top:1px solid var(--line)}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:.9375rem;color:var(--ink);border-bottom:1px solid var(--line);padding-bottom:2px;transition:all .28s var(--ease)}
.text-link:hover{color:var(--brand);border-bottom-color:var(--brand)}
.text-link svg{width:16px;height:16px;stroke:currentColor;stroke-width:1.5;fill:none;transition:transform .28s var(--ease)}
.text-link:hover svg{transform:translateX(3px)}

/* ---------- 深色提示带 ---------- */
.deep-strip{background:var(--deep);color:var(--deep-ink);padding:clamp(36px,5vw,60px) 0}
.deep-strip .inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.deep-strip h2{color:#fff;font-size:clamp(1.3rem,2.2vw,1.8rem);max-width:24ch}
.deep-strip p{color:rgba(233,240,234,.78);font-size:.9375rem;margin:10px 0 0;max-width:52ch}
.btn-light{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--ink);border-radius:var(--r-pill);padding:14px 26px;font-weight:700;font-size:.9375rem;border:1px solid #fff;transition:all .3s var(--ease);white-space:nowrap}
.btn-light:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-1px)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--paper);border-top:1px solid var(--line);padding:clamp(44px,6vw,72px) 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:clamp(24px,4vw,48px)}
.footer-brand .logo-mark{font-weight:800;font-size:1.125rem;letter-spacing:-.02em;display:inline-block}
.footer-brand .logo-sub{font-size:.75rem;color:var(--muted);letter-spacing:.16em;margin-left:8px}
.footer-brand p{font-size:.875rem;color:var(--ink-2);line-height:1.9;margin:14px 0 0;max-width:34ch}
.footer-col h4{font-size:.8125rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:14px}
.footer-col ul li{font-size:.875rem;color:var(--ink-2);line-height:1.9;margin-bottom:8px}
.footer-col ul li a{color:var(--ink-2);border-bottom:1px solid transparent;transition:all .28s var(--ease)}
.footer-col ul li a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-top:clamp(32px,4vw,48px);padding:20px 0;border-top:1px solid var(--line);font-size:.8125rem;color:var(--muted);letter-spacing:.04em}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .main-nav{gap:24px}
}
@media (max-width:991.98px){
  .main-nav,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-wrap{min-height:60px}
  .doc-layout{grid-template-columns:1fr}
  .doc-aside{display:none}
  .mobile-anchor{display:block}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767.98px){
  .doc-hero h1{max-width:none}
  .hero-meta div{padding-right:16px;margin-right:16px}
  .deep-strip .inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  body{font-size:.9688rem}
  .topbar .container{flex-wrap:nowrap;gap:10px}
  .topbar-label{font-size:.75rem}
  .countdown .sec-group{display:none}
  .countdown{font-size:.8125rem}
  .btn-light{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .hero-meta{flex-direction:column;border-top:1px solid var(--line)}
  .hero-meta div{border-right:0;margin-right:0;padding:10px 0;border-bottom:1px solid var(--line)}
  .hero-meta div:last-child{border-bottom:0}
  .doc-end{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;transform:none!important}
  .mobile-overlay nav a{opacity:1}
}

/* roulang page: category2 */
:root{
  --paper:#F5F2EC;
  --surface:#FFFFFF;
  --line:#E3DED3;
  --line-strong:#C9C2B4;
  --ink:#171A17;
  --ink-2:#4A4F4A;
  --muted:#8A8F88;
  --brand:#EE5B2B;
  --brand-deep:#C2441A;
  --brand-soft:#FBE7DE;
  --deep:#123A32;
  --deep-ink:#E9F0EA;
  --r-s:4px;
  --r-m:8px;
  --r-pill:999px;
  --sh-1:0 1px 0 rgba(23,26,23,.04),0 10px 28px -20px rgba(23,26,23,.22);
  --sh-2:0 18px 44px -24px rgba(23,26,23,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sp:8px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:1rem;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .3s var(--ease),border-color .3s var(--ease);}
a:hover{color:var(--brand);}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:var(--r-s);
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:clamp(20px,4vw,48px);
  padding-right:clamp(20px,4vw,48px);
}
/* ---------- topbar ---------- */
.status-bar{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  font-size:.8125rem;
  letter-spacing:.04em;
  color:var(--muted);
}
.status-bar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:44px;
  flex-wrap:wrap;
  padding-top:6px;
  padding-bottom:6px;
}
.status-live{display:inline-flex;align-items:center;gap:8px;color:var(--ink-2);font-weight:500;}
.status-dot{
  width:6px;height:6px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 0 3px rgba(238,91,43,.14);
}
.status-mid{display:inline-flex;align-items:center;gap:8px;}
.status-mid strong{color:var(--ink);font-weight:700;}
/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(245,242,236,.94);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.logo{display:inline-flex;align-items:baseline;gap:8px;line-height:1;}
.logo-mark{
  font-size:1.1875rem;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
  position:relative;
  padding-right:12px;
}
.logo-mark::after{
  content:"";
  position:absolute;
  right:0;
  top:50%;
  transform:translateY(-50%);
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand);
}
.logo-sub{font-size:.75rem;letter-spacing:.12em;color:var(--muted);font-weight:500;}
.main-nav{display:flex;align-items:center;gap:32px;}
.main-nav a{
  position:relative;
  font-size:.9375rem;
  font-weight:500;
  color:var(--ink);
  padding:4px 0;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-2px;
  height:2px;
  width:0;
  background:var(--brand);
  transition:width .3s var(--ease);
}
.main-nav a:hover::after{width:100%;}
.main-nav a:hover{color:var(--brand);}
.main-nav a[aria-current="page"]{color:var(--brand);font-weight:700;}
.main-nav a[aria-current="page"]::after{width:100%;}
.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 20px;
  border:1px solid var(--ink);
  border-radius:var(--r-pill);
  font-size:.875rem;
  font-weight:700;
  color:var(--ink);
  line-height:1.4;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease);
}
.nav-cta:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);transform:translateY(-1px);}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:transparent;
  border:1px solid var(--line-strong);
  border-radius:var(--r-pill);
  color:var(--ink);
  cursor:pointer;
  transition:border-color .3s var(--ease),color .3s var(--ease);
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand);}
/* ---------- mobile menu ---------- */
.mobile-menu{
  position:fixed;
  inset:0;
  z-index:80;
  background:var(--paper);
  padding:24px clamp(20px,6vw,40px) 40px;
  display:flex;
  flex-direction:column;
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:opacity .32s var(--ease),visibility .32s var(--ease),transform .32s var(--ease);
}
.mobile-menu.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line);}
.menu-close{
  width:44px;height:44px;
  background:transparent;border:1px solid var(--line-strong);border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink);cursor:pointer;
}
.menu-close:hover{border-color:var(--brand);color:var(--brand);}
.mobile-nav{display:flex;flex-direction:column;margin-top:8px;}
.mobile-nav a{
  font-size:1.5rem;
  font-weight:700;
  padding:18px 0;
  border-bottom:1px solid var(--line);
  color:var(--ink);
  opacity:0;
  transform:translateY(12px);
}
.mobile-menu.is-open .mobile-nav a{animation:fadeUp .36s var(--ease) forwards;}
.mobile-menu.is-open .mobile-nav a:nth-child(1){animation-delay:.04s;}
.mobile-menu.is-open .mobile-nav a:nth-child(2){animation-delay:.08s;}
.mobile-menu.is-open .mobile-nav a:nth-child(3){animation-delay:.12s;}
.mobile-menu.is-open .mobile-nav a:nth-child(4){animation-delay:.16s;}
.mobile-nav a[aria-current="page"]{color:var(--brand);}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--r-pill);
  font-size:.9375rem;
  font-weight:700;
  line-height:1.4;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand);}
.btn-primary:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px);}
.btn-arrow{transition:transform .3s var(--ease);}
.btn:hover .btn-arrow{transform:translateX(3px);}
/* ---------- shared typography ---------- */
.eyebrow{
  font-size:.75rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  font-weight:500;
  margin-bottom:16px;
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--line-strong);}
.h1{
  font-size:clamp(2.2rem,5.2vw,4.1rem);
  line-height:1.06;
  font-weight:800;
  letter-spacing:-.02em;
}
.h2{
  font-size:clamp(1.55rem,2.6vw,2.35rem);
  line-height:1.22;
  font-weight:700;
  letter-spacing:-.01em;
}
.mark{
  background-image:linear-gradient(var(--brand-soft),var(--brand-soft));
  background-repeat:no-repeat;
  background-size:100% 40%;
  background-position:0 88%;
}
.lead{color:var(--ink-2);font-size:1.0625rem;line-height:1.85;}
.section{padding-block:clamp(56px,8vw,112px);}
.section-tight{padding-block:clamp(40px,6vw,80px);}
.rule{border-top:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:clamp(28px,4vw,48px);}
.section-head p{color:var(--ink-2);max-width:52ch;}
/* ---------- hero ---------- */
.page-hero{padding-top:clamp(40px,6vw,72px);padding-bottom:clamp(40px,6vw,72px);}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(24px,4vw,56px);
  align-items:center;
}
.hero-copy .h1{margin-bottom:20px;}
.hero-copy .lead{max-width:56ch;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px;}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid var(--line);
  padding-top:20px;
}
.hero-facts div{
  padding-right:24px;
  margin-right:24px;
  border-right:1px solid var(--line);
}
.hero-facts div:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-facts dt{font-size:.75rem;letter-spacing:.12em;color:var(--muted);margin-bottom:4px;}
.hero-facts dd{margin:0;font-size:1.0625rem;font-weight:700;color:var(--ink);}
.hero-media{position:relative;}
.hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-m);
  border:1px solid var(--line-strong);
  transition:transform .36s var(--ease);
}
.hero-media:hover img{transform:scale(1.02);}
.media-tag{
  position:absolute;
  left:16px;
  bottom:16px;
  background:rgba(23,26,23,.82);
  color:#fff;
  font-size:.75rem;
  letter-spacing:.08em;
  padding:6px 14px;
  border-radius:var(--r-pill);
}
/* ---------- checklist ---------- */
.check-list{border-top:1px solid var(--line);}
.check-item{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:clamp(16px,3vw,40px);
  align-items:start;
  padding:28px 0;
  border-bottom:1px solid var(--line);
  transition:transform .3s var(--ease);
}
.check-item:hover{transform:translateX(2px);}
.check-num{
  font-size:1.75rem;
  font-weight:700;
  color:var(--brand);
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.check-item h3{font-size:1.1875rem;margin-bottom:8px;}
.check-item p{color:var(--ink-2);max-width:70ch;}
/* ---------- step track ---------- */
.step-track{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:28px 0;
  margin-bottom:clamp(32px,5vw,56px);
}
.step-node{position:relative;padding-right:24px;}
.step-node::after{
  content:"";
  position:absolute;
  right:0;
  top:22px;
  width:24px;
  height:1px;
  background:var(--line-strong);
}
.step-node:last-child::after{display:none;}
.step-node .step-idx{
  font-size:1.5rem;
  font-weight:800;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  display:block;
  margin-bottom:6px;
}
.step-node strong{display:block;font-size:1.0625rem;font-weight:700;}
/* ---------- step detail ---------- */
.step-detail{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(20px,4vw,48px);
  align-items:center;
  padding:clamp(28px,4vw,44px) 0;
  border-bottom:1px solid var(--line);
}
.step-detail:first-of-type{border-top:0;}
.step-detail h3{
  font-size:clamp(1.15rem,1.8vw,1.35rem);
  line-height:1.45;
  margin-bottom:12px;
  display:flex;
  align-items:baseline;
  gap:12px;
}
.step-detail h3 .idx{
  font-size:.9375rem;
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}
.step-detail p{color:var(--ink-2);margin-bottom:16px;max-width:58ch;}
.step-points{display:flex;flex-direction:column;gap:8px;}
.step-points li{
  position:relative;
  padding-left:20px;
  font-size:.9375rem;
  color:var(--ink-2);
}
.step-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:7px;
  height:1px;
  background:var(--brand);
}
.step-shot{
  border:1px solid var(--line-strong);
  border-radius:var(--r-m);
  overflow:hidden;
  background:var(--surface);
}
.step-shot img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .36s var(--ease);
}
.step-shot:hover img{transform:scale(1.02);}
.step-shot figcaption{
  font-size:.8125rem;
  color:var(--muted);
  padding:10px 14px;
  border-top:1px solid var(--line);
  letter-spacing:.02em;
}
/* ---------- link bar ---------- */
.linkbar{
  border:1px solid var(--line-strong);
  border-radius:var(--r-m);
  background:var(--surface);
  padding:clamp(20px,3vw,32px);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.linkbar h3{font-size:1.0625rem;margin-bottom:4px;}
.linkbar p{font-size:.9375rem;color:var(--ink-2);}
.linkbar-links{display:flex;flex-wrap:wrap;gap:12px 28px;}
.arrow-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.9375rem;
  font-weight:700;
  color:var(--ink);
  border-bottom:1px solid var(--line);
  padding-bottom:2px;
  transition:color .3s var(--ease),border-color .3s var(--ease);
}
.arrow-link:hover{color:var(--brand);border-color:var(--brand);}
.arrow-link svg{transition:transform .3s var(--ease);}
.arrow-link:hover svg{transform:translateX(3px);}
/* ---------- faq + tip ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(24px,4vw,56px);
  align-items:start;
}
.faq-list{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:16px;
  min-height:44px;
  padding:20px 4px;
  font-size:1.0625rem;
  font-weight:700;
  color:var(--ink);
  transition:color .28s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-icon{position:relative;width:16px;height:16px;flex:none;color:currentColor;}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
  transition:transform .28s var(--ease),opacity .28s var(--ease);
}
.faq-icon::before{left:0;top:7.25px;width:16px;height:1.5px;}
.faq-icon::after{left:7.25px;top:0;width:1.5px;height:16px;}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-item[open] .faq-icon::before{transform:rotate(180deg);}
.faq-answer{padding:0 4px 24px;color:var(--ink-2);max-width:68ch;}
.tip-box{
  background:var(--brand-soft);
  border-left:3px solid var(--brand);
  border-radius:0 var(--r-m) var(--r-m) 0;
  padding:24px 26px;
  position:sticky;
  top:96px;
}
.tip-box .tip-label{
  font-size:.75rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--brand-deep);
  font-weight:700;
  margin-bottom:10px;
  display:block;
}
.tip-box h3{font-size:1.0625rem;margin-bottom:10px;}
.tip-box p{font-size:.9375rem;color:var(--ink-2);}
.tip-box p + p{margin-top:10px;}
/* ---------- closing strip ---------- */
.closing{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding-block:clamp(36px,5vw,64px);
}
.closing-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.closing h2{font-size:clamp(1.35rem,2.2vw,1.85rem);line-height:1.3;max-width:26ch;}
.closing p{color:var(--ink-2);margin-top:8px;font-size:.9375rem;}
.closing-links{display:flex;flex-wrap:wrap;gap:12px 32px;}
/* ---------- footer ---------- */
.site-footer{
  background:var(--paper);
  border-top:1px solid var(--line);
  padding-top:clamp(48px,6vw,80px);
  padding-bottom:32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:clamp(24px,4vw,48px);
  padding-bottom:clamp(32px,4vw,48px);
  border-bottom:1px solid var(--line);
}
.footer-brand .logo-mark{font-size:1.0625rem;}
.footer-brand .logo-sub{font-size:.75rem;letter-spacing:.12em;color:var(--muted);margin-left:8px;}
.footer-brand p{
  margin-top:16px;
  font-size:.875rem;
  line-height:1.9;
  color:var(--ink-2);
  max-width:38ch;
}
.footer-col h4{
  font-size:.75rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:16px;
  font-weight:700;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:.875rem;color:var(--ink-2);}
.footer-col a{font-size:.875rem;color:var(--ink-2);border-bottom:1px solid transparent;transition:color .3s var(--ease),border-color .3s var(--ease);}
.footer-col a:hover{color:var(--brand);border-color:var(--brand);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  font-size:.8125rem;
  letter-spacing:.04em;
  color:var(--muted);
}
/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .36s var(--ease),transform .36s var(--ease);}
.reveal.is-visible{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}
/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .main-nav{gap:24px;}
}
@media (max-width:991.98px){
  .main-nav,.nav-cta{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-inner{min-height:60px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-media{order:-1;}
  .step-track{grid-template-columns:1fr;gap:16px;padding:20px 0;}
  .step-node{padding-right:0;padding-bottom:14px;border-bottom:1px solid var(--line);}
  .step-node:last-child{border-bottom:0;padding-bottom:0;}
  .step-node::after{display:none;}
  .step-detail{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .tip-box{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .linkbar{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767.98px){
  .status-bar .container{justify-content:flex-start;gap:6px 18px;}
  .status-mid{font-size:.75rem;}
  .hero-facts div{padding-right:16px;margin-right:16px;}
  .check-item{grid-template-columns:44px 1fr;gap:16px;}
  .closing-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:575.98px){
  body{font-size:.9375rem;}
  .h1{font-size:clamp(1.9rem,8.4vw,2.4rem);}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .hero-facts div{width:100%;border-right:0;padding-right:0;margin-right:0;padding-bottom:12px;margin-bottom:12px;border-bottom:1px solid var(--line);}
  .hero-facts div:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
  .status-bar{font-size:.75rem;}
  .status-updated{display:none;}
  .linkbar-links{width:100%;}
  .linkbar-links .arrow-link{width:100%;justify-content:space-between;}
}