/* roulang page: index */
:root{
  --c-ink:#0F1115;
  --c-primary:#14524A;
  --c-accent:#FF5C2B;
  --c-mint:#4FD1A5;
  --c-bg:#F6F5F1;
  --c-surface:#FFFFFF;
  --c-line:#E4E1DA;
  --c-line-strong:#C9C4B8;
  --c-muted:#6B6F76;
  --r-sm:4px;
  --r-md:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,17,21,.05);
  --sh-2:0 10px 28px rgba(15,17,21,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
time,.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.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;}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;letter-spacing:0;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 1px 2px rgba(255,92,43,.28);}
.btn-primary:hover{filter:brightness(1.04);transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,92,43,.28);}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);}
.btn-ghost{border:1px solid var(--c-ink);color:var(--c-ink);background:transparent;}
.btn-ghost:hover{background:var(--c-ink);color:#fff;transform:translateY(-1px);}
.btn-sm{height:34px;padding:0 14px;font-size:13px;border-radius:var(--r-sm);}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-ink);transition:color .18s var(--ease);}
.link-arrow span{display:inline-block;transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--c-accent);}
.link-arrow:hover span{transform:translateX(6px);}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:rgba(20,82,74,.07);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}
.chip-accent{background:rgba(255,92,43,.10);color:#C93E14;}
.chip-mint{background:rgba(79,209,165,.16);color:#12654A;}
.stamp{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border:1px solid var(--c-line-strong);border-radius:var(--r-sm);
  font-size:13px;font-weight:700;color:var(--c-primary);background:var(--c-surface);
}
.section{padding:88px 0;}
.section-sm{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--c-accent);}
.kicker::before{content:"";width:24px;height:1px;background:var(--c-accent);}
.section-title{font-size:clamp(22px,2.5vw,30px);font-weight:700;line-height:1.28;letter-spacing:-.01em;margin-top:10px;}
.section-sub{margin-top:10px;font-size:14.5px;color:var(--c-muted);max-width:640px;}
.divider{height:1px;background:var(--c-line);border:0;margin:0;}

/* ---------- 顶部倒计时条 ---------- */
.topbar{background:var(--c-ink);color:#EDEBE5;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:44px;}
.topbar-label{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.06em;color:#B9B5AB;}
.topbar-label i{width:6px;height:6px;border-radius:50%;background:var(--c-mint);display:inline-block;}
.countdown{display:inline-flex;align-items:baseline;gap:6px;margin-left:auto;margin-right:auto;}
.cd-unit{display:inline-flex;align-items:baseline;gap:3px;}
.cd-num{
  font-size:19px;font-weight:800;color:var(--c-accent);line-height:1;
  display:inline-block;min-width:2ch;text-align:center;transition:transform .12s var(--ease);
}
.cd-num.slide{transform:translateY(-3px);}
.cd-cap{font-size:11px;color:#9C978C;position:relative;top:-4px;}
.cd-sep{color:#5A574F;font-weight:700;}
.topbar-link{font-size:12.5px;color:#D8D4CB;border-bottom:1px solid rgba(255,255,255,.28);padding-bottom:1px;transition:color .18s var(--ease),border-color .18s var(--ease);}
.topbar-link:hover{color:var(--c-accent);border-color:var(--c-accent);}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(246,245,241,.86);backdrop-filter:blur(12px);transition:box-shadow .24s var(--ease),border-color .24s var(--ease);border-bottom:1px solid transparent;}
.site-header.is-scrolled{box-shadow:0 1px 0 var(--c-line),0 8px 22px rgba(15,17,21,.05);background:rgba(246,245,241,.94);}
.header-top{height:58px;display:flex;align-items:center;overflow:hidden;transition:height .24s var(--ease),opacity .2s var(--ease);border-bottom:1px solid var(--c-line);}
.site-header.is-scrolled .header-top{height:0;opacity:0;border-bottom-color:transparent;}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:30px;height:30px;border-radius:var(--r-sm);background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;letter-spacing:.02em;
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--c-ink);}
.brand-dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 0 rgba(255,92,43,.45);animation:pulse 2s var(--ease) infinite;}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,92,43,.42);}70%{box-shadow:0 0 0 8px rgba(255,92,43,0);}100%{box-shadow:0 0 0 0 rgba(255,92,43,0);}}
.header-tools{display:flex;align-items:center;gap:16px;}
.icon-btn{
  width:34px;height:34px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-muted);
  transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease);
}
.icon-btn:hover{border-color:var(--c-ink);color:var(--c-ink);background:var(--c-surface);}
.hot-tags{position:relative;height:20px;min-width:96px;overflow:hidden;}
.hot-tag{
  position:absolute;inset:0;font-size:13px;color:var(--c-muted);white-space:nowrap;
  opacity:0;transform:translateY(8px);transition:opacity .38s var(--ease),transform .38s var(--ease);
}
.hot-tag.on{opacity:1;transform:translateY(0);}
.channel-row{height:52px;display:flex;align-items:center;transition:height .24s var(--ease);}
.site-header.is-scrolled .channel-row{height:60px;}
.channel-inner{display:flex;align-items:center;gap:24px;width:100%;}
.channel-nav{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;flex:1;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-nav a{
  position:relative;padding:8px 12px;font-size:15px;color:var(--c-muted);white-space:nowrap;
  transition:color .18s var(--ease);border-radius:var(--r-sm);
}
.channel-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.channel-nav a:hover{color:var(--c-ink);}
.channel-nav a:hover::after{transform:scaleX(1);}
.channel-nav a.active{color:var(--c-ink);font-weight:600;}
.channel-nav a.active::after{transform:scaleX(1);}
.trend-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.trend-link .tri{font-size:10px;color:var(--c-mint);}
.menu-toggle{display:none;width:38px;height:38px;border:1px solid var(--c-line);border-radius:var(--r-sm);align-items:center;justify-content:center;color:var(--c-ink);}

/* ---------- Hero ---------- */
.hero{padding:64px 0 0;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start;padding-bottom:64px;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:600;letter-spacing:.14em;color:var(--c-primary);background:rgba(20,82,74,.07);padding:6px 12px;border-radius:var(--r-pill);}
.hero h1{
  margin-top:22px;font-size:clamp(34px,5vw,56px);line-height:1.12;font-weight:800;letter-spacing:-.02em;
}
.hero h1 em{font-style:normal;color:var(--c-accent);position:relative;}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:3px;background:rgba(255,92,43,.22);border-radius:2px;}
.hero-sub{margin-top:22px;font-size:18px;line-height:1.7;color:var(--c-muted);max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:40px;padding-top:28px;border-top:1px solid var(--c-line);}
.hero-stat{display:flex;align-items:center;gap:10px;}
.hero-stat b{font-size:15px;font-weight:700;color:var(--c-line-strong);font-variant-numeric:tabular-nums;}
.hero-stat span{font-size:14px;color:var(--c-muted);}
.hero-figure{position:relative;border-radius:var(--r-md);overflow:hidden;background:var(--c-line);aspect-ratio:4/5;box-shadow:var(--sh-1);}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:44px 44px;opacity:.7;
}
.hero-float{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:rgba(255,255,255,.94);backdrop-filter:blur(6px);
  border-radius:var(--r-md);padding:12px 16px;box-shadow:var(--sh-2);
  display:flex;align-items:center;gap:12px;max-width:calc(100% - 36px);
}
.hero-float .dot{width:8px;height:8px;border-radius:50%;background:var(--c-mint);flex:none;}
.hero-float b{font-size:13.5px;font-weight:700;display:block;}
.hero-float small{font-size:12px;color:var(--c-muted);}

/* ---------- 卖点 ---------- */
.perks{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.perk{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:26px 24px 24px;display:flex;gap:18px;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.perk:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-line-strong);}
.perk.wide{grid-column:span 2;}
.perk-num{font-size:40px;font-weight:800;line-height:1;color:var(--c-line-strong);letter-spacing:-.03em;transition:color .22s var(--ease);font-variant-numeric:tabular-nums;}
.perk:hover .perk-num{color:var(--c-accent);}
.perk-body h3{font-size:17px;font-weight:700;line-height:1.4;}
.perk-body p{margin-top:8px;font-size:14.5px;color:var(--c-muted);line-height:1.75;}
.perk-body .chip{margin-top:14px;}

/* ---------- 图墙 ---------- */
.wall{columns:5;column-gap:16px;}
.wall-item{break-inside:avoid;margin-bottom:16px;position:relative;border-radius:var(--r-md);overflow:hidden;display:block;background:var(--c-line);}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease),filter .4s var(--ease);}
.wall-item::after{
  content:"";position:absolute;inset:auto 0 0 0;height:56%;pointer-events:none;
  background:linear-gradient(to top,rgba(15,17,21,.62),rgba(15,17,21,0));
  opacity:.86;transition:opacity .4s var(--ease);
}
.wall-item:hover img{transform:scale(1.04);}
.wall-item:hover::after{opacity:1;}
.wall-tag{
  position:absolute;left:12px;top:12px;z-index:2;background:rgba(255,255,255,.94);color:var(--c-primary);
  font-size:11.5px;font-weight:700;padding:4px 9px;border-radius:var(--r-pill);letter-spacing:.02em;
}
.wall-cap{position:absolute;left:14px;right:14px;bottom:12px;z-index:2;color:#fff;font-size:13.5px;font-weight:600;line-height:1.45;}
.r1x1{aspect-ratio:1/1;}
.r4x5{aspect-ratio:4/5;}
.r16x10{aspect-ratio:16/10;}

/* ---------- 最新信息 ---------- */
.news-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;}
.news-row{
  display:grid;grid-template-columns:132px 1fr;gap:28px;padding:26px 28px;
  border-bottom:1px solid var(--c-line);transition:background-color .2s var(--ease);
}
.news-row:last-child{border-bottom:0;}
.news-row:hover{background:rgba(246,245,241,.7);}
.news-time{font-size:13px;color:var(--c-muted);padding-top:4px;}
.news-time b{display:block;font-size:20px;font-weight:800;color:var(--c-ink);letter-spacing:-.02em;}
.news-main h3{font-size:17.5px;font-weight:600;line-height:1.5;}
.news-main h3 a{transition:color .18s var(--ease);}
.news-main h3 a:hover{color:var(--c-accent);}
.news-summary{margin-top:8px;font-size:14.5px;color:var(--c-muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap;}
.news-new{background:var(--c-accent);color:#fff;font-size:10.5px;font-weight:800;letter-spacing:.08em;padding:3px 7px;border-radius:var(--r-sm);}
.news-empty{padding:64px 28px;text-align:center;}
.news-empty .stamp{margin:0 auto 16px;}
.news-empty p{font-size:14.5px;color:var(--c-muted);}
.news-empty a{display:inline-block;margin-top:12px;font-size:14px;font-weight:600;color:var(--c-accent);border-bottom:1px solid rgba(255,92,43,.35);}

/* ---------- CTA 表单 ---------- */
.cta-band{background:var(--c-ink);color:#EDEBE5;border-radius:var(--r-md);padding:52px 48px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.cta-band h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em;color:#fff;}
.cta-band p{margin-top:14px;font-size:15px;color:#A9A59C;line-height:1.8;max-width:460px;}
.cta-checks{margin-top:24px;display:grid;gap:10px;}
.cta-checks li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:#CFCBC2;}
.cta-checks i{width:16px;height:16px;border-radius:50%;background:rgba(79,209,165,.18);color:var(--c-mint);display:inline-flex;align-items:center;justify-content:center;font-size:10px;font-style:normal;flex:none;}
.form-card{background:#171A20;border:1px solid #262A32;border-radius:var(--r-md);padding:26px;}
.form-card label{display:block;font-size:12.5px;color:#9C978C;margin-bottom:8px;letter-spacing:.04em;}
.form-field{margin-bottom:16px;}
.form-input,.form-select{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-sm);
  background:#0F1115;border:1px solid #2A2E37;color:#EDEBE5;font-size:15px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.form-input::placeholder{color:#666B75;}
.form-input:focus,.form-select:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 2px rgba(255,92,43,.35);}
.form-note{margin-top:12px;font-size:12.5px;color:#7C8089;line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:16px;font-weight:600;line-height:1.5;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--c-accent);}
.faq-icon{position:relative;width:18px;height:18px;flex:none;transition:transform .2s var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--c-ink);border-radius:2px;transform:translate(-50%,-50%);transition:background-color .2s var(--ease);}
.faq-icon::before{width:14px;height:1.6px;}
.faq-icon::after{width:1.6px;height:14px;}
.faq-item.open .faq-icon{transform:rotate(180deg);}
.faq-item.open .faq-icon::after{opacity:0;}
.faq-item.open .faq-q{color:var(--c-accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease);}
.faq-a p{padding:0 40px 24px 4px;font-size:15px;color:var(--c-muted);line-height:1.85;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary);color:#D6E2DF;margin-top:88px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.footer-brand span.brand-text{color:#fff;font-size:18px;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:#B6C7C3;max-width:320px;}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.1em;color:#fff;margin-bottom:18px;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:#B6C7C3;transition:color .18s var(--ease);}
.footer-col a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;}
.footer-bottom p{font-size:13px;color:#9BB0AB;}
.footer-friend{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.footer-friend span{font-size:12.5px;color:#8AA29C;}
.footer-friend a{font-size:13px;color:#B6C7C3;transition:color .18s var(--ease);}
.footer-friend a:hover{color:#fff;}

/* ---------- 滚动动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:100;background:var(--c-bg);transform:translateX(100%);transition:transform .3s var(--ease);overflow-y:auto;padding:22px 20px 40px;}
.drawer.on{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-nav a{display:block;padding:15px 0;font-size:17px;font-weight:600;border-bottom:1px solid var(--c-line);}
.drawer-nav a.active{color:var(--c-accent);}
.drawer-sub{margin-top:28px;font-size:12px;letter-spacing:.1em;color:var(--c-muted);}
.drawer-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;}
.drawer-tags span{font-size:13px;padding:6px 12px;border:1px solid var(--c-line);border-radius:var(--r-pill);color:var(--c-muted);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .wall{columns:3;}
  .perks{grid-template-columns:repeat(2,1fr);}
  .perk.wide{grid-column:span 2;}
}
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-figure{aspect-ratio:16/10;}
  .cta-band{grid-template-columns:1fr;gap:36px;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .channel-nav{flex:none;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section-sm{padding:44px 0;}
  .header-top{height:52px;}
  .header-tools .hot-tags,.header-tools .btn-sm{display:none;}
  .channel-nav{display:none;}
  .menu-toggle{display:inline-flex;}
  .channel-inner{gap:12px;}
  .trend-link{margin-left:auto;}
  .countdown{margin:0;}
  .topbar-label{display:none;}
  .topbar-inner{justify-content:space-between;}
  .hero{padding-top:44px;}
  .hero h1{font-size:clamp(30px,8vw,38px);}
  .hero-sub{font-size:16px;}
  .hero-stats{gap:18px;}
  .perks{grid-template-columns:1fr;}
  .perk.wide{grid-column:span 1;}
  .wall{columns:2;column-gap:12px;}
  .wall-item{margin-bottom:12px;}
  .news-row{grid-template-columns:1fr;gap:12px;padding:22px 18px;}
  .news-time b{display:inline;font-size:14px;margin-right:8px;}
  .cta-band{padding:32px 22px;}
  .form-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:15.5px;padding:18px 2px;}
  .faq-a p{padding-right:10px;}
}
@media (max-width:479px){
  .hero-cta .btn{width:100%;}
  .btn{padding:0 18px;}
  .section-head{margin-bottom:28px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
  .btn:hover,.perk:hover,.wall-item:hover img{transform:none;}
}

/* roulang page: article */
:root{
  --c-ink:#0F1115;
  --c-primary:#14524A;
  --c-accent:#FF5C2B;
  --c-mint:#4FD1A5;
  --c-bg:#F6F5F1;
  --c-surface:#FFFFFF;
  --c-line:#E4E1DA;
  --c-line-strong:#C9C4B8;
  --c-muted:#6B6F76;
  --r-sm:4px;
  --r-md:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,17,21,.05);
  --sh-2:0 10px 28px rgba(15,17,21,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC",system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.7;color:var(--c-ink);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),opacity .18s var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--c-accent);text-transform:uppercase}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--c-accent);display:block}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,245,241,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--c-line);box-shadow:0 2px 14px rgba(15,17,21,.06)}
.topbar-inner{display:flex;align-items:center;gap:18px;height:68px;transition:height .24s var(--ease)}
.site-header.is-stuck .topbar-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;font-size:18px;font-weight:700;letter-spacing:-0.01em}
.brand-mark{
  width:30px;height:30px;border-radius:var(--r-md);background:var(--c-primary);color:#fff;
  display:grid;place-items:center;font-size:12px;font-weight:700;letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}
.brand-text{white-space:nowrap}
.brand-dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);animation:breathe 2s var(--ease) infinite}
@keyframes breathe{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.42;transform:scale(.8)}}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:14px;min-width:0}
.hot-words{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);min-width:0}
.hot-label{
  flex:0 0 auto;font-size:11px;font-weight:600;letter-spacing:.06em;color:var(--c-primary);
  border:1px solid var(--c-line-strong);border-radius:var(--r-sm);padding:1px 6px;
}
.hot-rotator{position:relative;height:20px;overflow:hidden;min-width:96px}
.hot-rotator span{
  position:absolute;left:0;top:0;white-space:nowrap;opacity:0;
  transform:translateY(100%);transition:opacity .3s var(--ease),transform .3s var(--ease);
  color:#3A3E44;
}
.hot-rotator span.on{opacity:1;transform:translateY(0)}
.nav-search{
  display:flex;align-items:center;gap:8px;height:36px;padding:0 12px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-surface);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-search:focus-within{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(255,92,43,.12)}
.nav-search i{color:var(--c-muted);font-size:13px}
.nav-search input{
  border:0;outline:0;background:transparent;width:132px;font-size:14px;
}
.nav-search input::placeholder{color:#9A9CA1}
.btn-ghost-sm{
  flex:0 0 auto;height:36px;padding:0 16px;border:1px solid var(--c-ink);border-radius:var(--r-md);
  display:inline-flex;align-items:center;font-size:14px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.btn-ghost-sm:hover{background:var(--c-ink);color:#fff;transform:translateY(-1px)}
.menu-toggle{display:none;width:40px;height:36px;border:1px solid var(--c-line);border-radius:var(--r-md);padding:9px 9px}
.menu-toggle span{display:block;height:2px;background:var(--c-ink);border-radius:2px;margin-bottom:4px;transition:transform .2s var(--ease)}
.menu-toggle span:last-child{margin-bottom:0}
.channel-row{border-top:1px solid var(--c-line);transition:opacity .24s var(--ease)}
.channel-inner{display:flex;align-items:center;gap:18px;height:46px;transition:height .24s var(--ease)}
.site-header.is-stuck .channel-inner{height:42px}
.channel-nav{display:flex;align-items:center;gap:28px;overflow-x:auto;scrollbar-width:none;min-width:0}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{
  position:relative;flex:0 0 auto;font-size:14.5px;color:#3A3E44;padding:4px 0;white-space:nowrap;
}
.channel-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.channel-nav a:hover{color:var(--c-accent)}
.channel-nav a:hover::after,.channel-nav a.active::after{transform:scaleX(1)}
.channel-nav a.active{color:var(--c-ink);font-weight:600}
.trend-entry{
  margin-left:auto;flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--c-primary);
}
.trend-entry i{font-size:10px;color:var(--c-mint)}
.trend-entry:hover{color:var(--c-accent)}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:120;background:var(--c-bg);padding:20px 18px 32px;
  overflow-y:auto;display:flex;flex-direction:column;
}
.drawer[hidden]{display:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line)}
.drawer-head .brand-text{font-size:18px;font-weight:700;letter-spacing:-0.01em}
.drawer-close{width:38px;height:38px;border:1px solid var(--c-line);border-radius:var(--r-md);display:grid;place-items:center}
.drawer-search{display:flex;gap:8px;margin:18px 0 8px}
.drawer-search input{
  flex:1;height:44px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-md);
  background:var(--c-surface);outline:0;
}
.drawer-search input:focus{border-color:var(--c-accent)}
.drawer-search button{
  width:48px;height:44px;border-radius:var(--r-md);background:var(--c-primary);color:#fff;
}
.drawer-nav{display:flex;flex-direction:column;margin-top:12px}
.drawer-nav a{
  padding:14px 2px;border-bottom:1px solid var(--c-line);font-size:16px;font-weight:500;
}
.drawer-nav a:active{color:var(--c-accent)}

/* ============ 阅读进度 ============ */
.read-progress{
  position:fixed;top:0;left:0;height:2px;width:0;background:var(--c-accent);z-index:200;
  transition:width .1s linear;
}

/* ============ 面包屑 ============ */
.crumb-bar{padding:22px 0 0}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:12px;color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{color:var(--c-line-strong)}
.breadcrumb .current{color:#3A3E44;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章布局 ============ */
.article-wrap{padding:26px 0 88px}
.article-grid{
  display:grid;grid-template-columns:250px minmax(0,760px);gap:48px;justify-content:center;align-items:start;
}
.article-aside{display:flex;flex-direction:column;gap:18px;position:sticky;top:120px}
.aside-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:18px 18px 16px;box-shadow:var(--sh-1);
}
.aside-title{
  font-size:14px;font-weight:700;letter-spacing:-0.01em;margin-bottom:10px;
  padding-left:9px;border-left:3px solid var(--c-accent);line-height:1.3;
}
.aside-list li{position:relative;padding-left:16px;font-size:13.5px;line-height:1.7;color:#3A3E44;margin-bottom:8px}
.aside-list li:last-child{margin-bottom:0}
.aside-list li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--c-mint)}
.aside-links li{border-bottom:1px solid var(--c-line)}
.aside-links li:last-child{border-bottom:0}
.aside-links a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 0;font-size:14px;color:#3A3E44;
}
.aside-links a i{font-size:11px;color:var(--c-line-strong);transition:transform .18s var(--ease),color .18s var(--ease)}
.aside-links a:hover{color:var(--c-accent)}
.aside-links a:hover i{color:var(--c-accent);transform:translateX(4px)}
.aside-cta p{font-size:13.5px;color:var(--c-muted);line-height:1.7;margin-bottom:12px}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-md);background:var(--c-accent);color:#fff;
  font-size:15px;font-weight:600;box-shadow:var(--sh-1);
  transition:filter .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-block{width:100%}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-md);border:1px solid var(--c-ink);color:var(--c-ink);
  font-size:15px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.btn-outline:hover{background:var(--c-ink);color:#fff;transform:translateY(-1px)}

/* ============ 文章头部 ============ */
.post-head{padding-bottom:22px;border-bottom:1px solid var(--c-line)}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:var(--r-pill);
  background:rgba(20,82,74,.08);color:var(--c-primary);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.post-head h1{
  font-size:clamp(26px,3.4vw,38px);line-height:1.28;font-weight:800;letter-spacing:-0.01em;
  margin:16px 0 14px;
}
.post-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;font-size:13px;color:var(--c-muted);
}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-line-strong)}
.font-ctrl{margin-left:auto;display:inline-flex;align-items:center;gap:6px}
.font-ctrl button{
  width:30px;height:30px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:var(--c-surface);
  font-size:13px;color:#3A3E44;transition:border-color .18s var(--ease),color .18s var(--ease);
}
.font-ctrl button:hover{border-color:var(--c-accent);color:var(--c-accent)}

/* ============ 正文排版 ============ */
.post-content{padding-top:28px}
.post-content p{font-size:16.5px;line-height:1.9;color:#23262B;margin-bottom:1.25em}
.post-content h2{
  font-size:22px;line-height:1.4;font-weight:700;letter-spacing:-0.01em;
  margin:2em 0 .8em;padding-left:12px;border-left:3px solid var(--c-accent);
}
.post-content h3{font-size:18px;font-weight:600;margin:1.6em 0 .6em;line-height:1.5}
.post-content ul,.post-content ol{padding-left:1.45em;margin-bottom:1.25em}
.post-content ul{list-style:disc}
.post-content ol{list-style:decimal}
.post-content li{font-size:16px;line-height:1.9;color:#23262B;margin-bottom:.45em}
.post-content blockquote{
  margin:1.4em 0;padding:14px 18px;background:#FBFAF7;border-left:3px solid var(--c-line-strong);
  border-radius:0 var(--r-md) var(--r-md) 0;color:#3A3E44;
}
.post-content blockquote p:last-child{margin-bottom:0}
.post-content img{border-radius:var(--r-md);margin:14px 0;width:100%}
.post-content table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:14.5px}
.post-content th,.post-content td{border:1px solid var(--c-line);padding:10px 12px;text-align:left;line-height:1.7}
.post-content thead th{background:#F1EFE9;font-weight:600;color:var(--c-ink)}
.post-content tbody tr:nth-child(even){background:#FCFCFA}
.post-content code{background:#F1EFE9;padding:2px 6px;border-radius:var(--r-sm);font-size:14px}
.post-content pre{background:var(--c-ink);color:#E8E6E1;padding:16px;border-radius:var(--r-md);overflow:auto;margin-bottom:1.25em}
.post-content pre code{background:none;color:inherit;padding:0}
.post-content a{color:var(--c-primary);border-bottom:1px solid rgba(20,82,74,.35)}
.post-content a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent)}
.post-content hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}

.empty-state{
  border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);
  padding:52px 24px;text-align:center;box-shadow:var(--sh-1);
}
.empty-icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:var(--r-md);background:#F1EFE9;
  display:grid;place-items:center;color:var(--c-line-strong);font-size:22px;
}
.empty-state h2{font-size:19px;font-weight:700;margin-bottom:8px}
.empty-state p{font-size:14.5px;color:var(--c-muted);margin-bottom:20px}

/* ============ 上下篇 / 返回 ============ */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:36px}
.post-nav-item{
  border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);
  padding:14px 16px;display:flex;flex-direction:column;gap:4px;box-shadow:var(--sh-1);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.post-nav-item span{font-size:12px;color:var(--c-muted)}
.post-nav-item strong{font-size:14.5px;font-weight:600;line-height:1.5}
.post-nav-item:hover{border-color:var(--c-accent);transform:translateY(-2px);box-shadow:var(--sh-2)}
.post-nav-item.next{text-align:right}
.back-row{margin-top:22px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.text-link i{font-size:11px;transition:transform .18s var(--ease)}
.text-link:hover{color:var(--c-accent)}
.text-link:hover i{transform:translateX(5px)}
.post-tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-surface);font-size:12.5px;color:var(--c-muted);
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.tag:hover{border-color:var(--c-accent);color:var(--c-accent)}

/* ============ 相关推荐 ============ */
.related{padding:0 0 96px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;letter-spacing:-0.01em;line-height:1.3;margin-top:8px}
.related-list{display:grid;gap:14px}
.related-item{
  display:grid;grid-template-columns:132px minmax(0,1fr) 28px;gap:20px;align-items:center;
  border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);
  padding:16px;box-shadow:var(--sh-1);transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.related-item:hover{border-color:var(--c-accent);transform:translateY(-2px);box-shadow:var(--sh-2)}
.related-thumb{aspect-ratio:16/10;border-radius:var(--r-md);overflow:hidden;background:#F1EFE9}
.related-thumb img{width:100%;height:100%;object-fit:cover}
.related-body{display:flex;flex-direction:column;gap:6px;min-width:0}
.related-body strong{font-size:16px;font-weight:600;letter-spacing:-0.01em;line-height:1.5}
.related-desc{font-size:13.5px;color:var(--c-muted);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-meta{font-size:12px;color:var(--c-line-strong);font-variant-numeric:tabular-nums}
.related-item > i{color:var(--c-line-strong);font-size:13px;transition:transform .2s var(--ease),color .2s var(--ease)}
.related-item:hover > i{color:var(--c-accent);transform:translateX(4px)}

/* ============ CTA 条 ============ */
.cta-strip{
  background:var(--c-ink);border-radius:var(--r-md);margin:0 0 96px;overflow:hidden;
}
.cta-strip-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:34px 36px;flex-wrap:wrap;
}
.cta-strip h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;color:#fff;letter-spacing:-0.01em;line-height:1.35}
.cta-strip p{font-size:14px;color:rgba(255,255,255,.68);margin-top:8px;max-width:52ch;line-height:1.7}
.cta-strip .btn-primary{flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-primary);color:rgba(255,255,255,.86);padding:60px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.16)}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;letter-spacing:-0.01em}
.footer-brand .brand-mark{background:var(--c-accent)}
.footer-desc{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.7);margin-top:14px;max-width:36ch}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:20px;font-size:12.5px;color:rgba(255,255,255,.6);
}
.footer-friend{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.footer-friend span{color:rgba(255,255,255,.45)}
.footer-friend a{color:rgba(255,255,255,.72)}
.footer-friend a:hover{color:#fff}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-grid{grid-template-columns:minmax(0,1fr);gap:34px}
  .article-aside{position:static;flex-direction:row;flex-wrap:wrap}
  .aside-card{flex:1 1 260px}
}
@media (max-width:1023px){
  .container{padding:0 18px}
  .hot-words{display:none}
  .nav-search input{width:104px}
  .channel-nav{gap:20px}
}
@media (max-width:767px){
  .topbar-inner{height:60px;gap:12px}
  .site-header.is-stuck .topbar-inner{height:54px}
  .nav-search,.btn-ghost-sm{display:none}
  .menu-toggle{display:block;margin-left:auto}
  .channel-inner{height:44px}
  .trend-entry{display:none}
  .channel-nav{gap:18px}
  .article-wrap{padding:18px 0 64px}
  .post-head h1{font-size:26px}
  .post-meta{gap:8px 12px}
  .font-ctrl{margin-left:0;width:100%;margin-top:4px}
  .post-nav{grid-template-columns:1fr}
  .post-nav-item.next{text-align:left}
  .related-item{grid-template-columns:96px minmax(0,1fr);gap:14px}
  .related-item > i{display:none}
  .cta-strip-inner{padding:26px 20px;flex-direction:column;align-items:flex-start}
  .cta-strip .btn-primary{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-aside{flex-direction:column}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .post-content p,.post-content li{font-size:16px}
  .related-item{grid-template-columns:1fr}
  .related-thumb{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr}
  .breadcrumb .current{max-width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --c-ink:#0F1115;
  --c-primary:#14524A;
  --c-accent:#FF5C2B;
  --c-mint:#4FD1A5;
  --c-bg:#F6F5F1;
  --c-surface:#FFFFFF;
  --c-line:#E4E1DA;
  --c-line-strong:#C9C4B8;
  --c-muted:#6B6F76;
  --radius-s:4px;
  --radius-m:6px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,17,21,.05);
  --shadow-2:0 10px 28px rgba(15,17,21,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Space Grotesk","Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:-0.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--c-accent)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-0.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
time,.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-num);font-size:12px;font-weight:600;
  letter-spacing:.06em;text-transform:uppercase;color:var(--c-accent);
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--c-accent)}
.section-title{font-size:clamp(24px,2.6vw,31px);font-weight:700;margin-top:10px}
.section-sub{margin-top:10px;color:var(--c-muted);font-size:15px;line-height:1.75;max-width:640px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-ink);white-space:nowrap;
}
.text-link::after{content:"";width:6px;height:6px;border-top:1.6px solid currentColor;border-right:1.6px solid currentColor;transform:rotate(45deg);transition:transform .2s var(--ease)}
.text-link:hover::after{transform:rotate(45deg) translate(3px,-3px)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.92);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-shrunk{
  background:rgba(246,245,241,.96);
  border-bottom-color:var(--c-line);
  box-shadow:0 1px 2px rgba(15,17,21,.05);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:12px;padding-bottom:12px;transition:padding .24s var(--ease)}
.is-shrunk .header-inner{padding-top:8px;padding-bottom:8px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:28px;height:28px;border-radius:var(--radius-s);
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.02em;
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-0.01em}
.brand-dot{
  width:8px;height:8px;border-radius:50%;background:var(--c-accent);
  box-shadow:0 0 0 0 rgba(255,92,43,.5);
  animation:pulse 2s infinite var(--ease);
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,92,43,.45)}
  70%{box-shadow:0 0 0 8px rgba(255,92,43,0)}
  100%{box-shadow:0 0 0 0 rgba(255,92,43,0)}
}
.header-right{display:flex;align-items:center;gap:18px;min-width:0}
.hot-words{display:flex;align-items:center;gap:10px;min-width:0}
.hot-label{
  font-size:11px;font-weight:600;letter-spacing:.06em;color:var(--c-muted);
  border:1px solid var(--c-line);border-radius:var(--radius-pill);
  padding:2px 9px;white-space:nowrap;
}
.hot-track{position:relative;height:22px;width:150px;overflow:hidden}
.hot-item{
  position:absolute;inset:0;display:flex;align-items:center;
  font-size:13px;color:var(--c-muted);white-space:nowrap;
  opacity:0;transform:translateY(6px);
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.hot-item.is-on{opacity:1;transform:none;color:var(--c-ink);font-weight:500}
.btn-ghost-sm{
  display:inline-flex;align-items:center;justify-content:center;
  height:34px;padding:0 16px;border:1px solid var(--c-ink);border-radius:var(--radius-m);
  font-size:13px;font-weight:600;background:transparent;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
  white-space:nowrap;
}
.btn-ghost-sm:hover{background:var(--c-ink);color:#fff}
.btn-ghost-sm:active{transform:translateY(1px)}
.menu-toggle{
  display:none;width:38px;height:34px;border:1px solid var(--c-line);border-radius:var(--radius-m);
  background:transparent;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.menu-toggle span{display:block;width:16px;height:1.6px;background:var(--c-ink);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.menu-toggle.is-open span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}

.nav-row{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding-bottom:10px;max-height:52px;overflow:hidden;
  transition:max-height .24s var(--ease),padding .24s var(--ease),opacity .2s var(--ease);
}
.is-shrunk .nav-row{padding-bottom:6px}
.channel-nav{display:flex;align-items:center;gap:4px;min-width:0;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{
  position:relative;padding:6px 12px;font-size:14.5px;color:var(--c-muted);white-space:nowrap;border-radius:var(--radius-s);
}
.channel-nav a:hover{color:var(--c-ink);background:rgba(15,17,21,.04)}
.channel-nav a.active{color:var(--c-ink);font-weight:600}
.channel-nav a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;background:var(--c-accent);border-radius:2px;
}
.trend-link{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;color:var(--c-primary);white-space:nowrap}
.tri{width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:7px solid var(--c-mint)}
.trend-link:hover .tri{border-bottom-color:var(--c-accent)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--c-bg);
  padding:20px 18px 40px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:36px;height:36px;border:1px solid var(--c-line);background:transparent;border-radius:var(--radius-m);font-size:18px;line-height:1}
.drawer-search{display:flex;gap:8px;margin-bottom:24px}
.drawer-search input{
  flex:1;height:44px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--radius-m);
  background:var(--c-surface);font-size:15px;
}
.drawer-search input:focus{border-color:var(--c-accent);outline:none;box-shadow:0 0 0 2px rgba(255,92,43,.2)}
.drawer-group{margin-bottom:26px}
.drawer-group h4{font-size:12px;letter-spacing:.06em;color:var(--c-muted);text-transform:uppercase;margin-bottom:10px;font-family:var(--font-num)}
.drawer-group a{display:block;padding:12px 0;font-size:16px;border-bottom:1px solid var(--c-line)}
.drawer-group a.active{color:var(--c-accent);font-weight:600}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--c-ink)}
.page-hero-media{position:absolute;inset:0}
.page-hero-media img{width:100%;height:100%;object-fit:cover;opacity:.42}
.page-hero-media::after{content:"";position:absolute;inset:0;background:rgba(15,17,21,.68)}
.page-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:60px}
.crumb{display:flex;align-items:center;gap:8px;font-size:12px;color:rgba(255,255,255,.66);margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:rgba(255,255,255,.66)}
.crumb a:hover{color:#fff}
.crumb span.sep{color:rgba(255,255,255,.34)}
.page-hero h1{
  color:#fff;font-size:clamp(30px,4.2vw,50px);line-height:1.12;font-weight:800;max-width:820px;
}
.page-hero h1 em{font-style:normal;color:var(--c-accent)}
.page-hero-lead{margin-top:18px;max-width:620px;color:rgba(255,255,255,.78);font-size:15.5px;line-height:1.8}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags .chip{border-color:rgba(255,255,255,.28);color:rgba(255,255,255,.86);background:rgba(255,255,255,.06)}

/* ---------- chips ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 11px;border-radius:var(--radius-pill);
  border:1px solid var(--c-line);background:var(--c-surface);
  font-size:12px;color:var(--c-muted);line-height:1.7;white-space:nowrap;
}
.chip--accent{border-color:rgba(255,92,43,.28);color:var(--c-accent);background:rgba(255,92,43,.07)}
.chip--mint{border-color:rgba(79,209,165,.35);color:#1F7A5C;background:rgba(79,209,165,.12);font-family:var(--font-num)}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start}

/* ---------- entry list ---------- */
.entry-list{border-top:1px solid var(--c-line)}
.entry{
  display:grid;grid-template-columns:60px minmax(0,1fr) 172px;gap:22px;
  padding:26px 4px;border-bottom:1px solid var(--c-line);
  transition:background .2s var(--ease);
}
.entry:hover{background:rgba(255,255,255,.7)}
.entry-no{
  font-family:var(--font-num);font-size:26px;font-weight:800;line-height:1.2;
  color:var(--c-line-strong);transition:color .2s var(--ease);
}
.entry:hover .entry-no{color:var(--c-accent)}
.entry-title{font-size:17.5px;font-weight:600;line-height:1.55}
.entry-title a:hover{color:var(--c-accent)}
.entry-desc{margin-top:8px;font-size:14px;line-height:1.8;color:var(--c-muted)}
.entry-meta{display:flex;align-items:center;gap:12px;margin-top:12px;flex-wrap:wrap}
.entry-meta time{font-size:12px;color:var(--c-muted);letter-spacing:.01em}
.entry-thumb{
  aspect-ratio:4/3;border-radius:var(--radius-m);overflow:hidden;background:var(--c-line);
  position:relative;
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.entry:hover .entry-thumb img{transform:scale(1.04)}

/* ---------- sidebar ---------- */
.sidebar{position:sticky;top:104px;display:grid;gap:22px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-m);
  padding:24px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:14px}
.point-list li{
  position:relative;padding-left:18px;margin-bottom:11px;font-size:14px;line-height:1.75;color:#3A3E45;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:1.6px;background:var(--c-accent);
}
.side-cta{background:var(--c-ink);border-color:var(--c-ink);color:#fff}
.side-cta h3{color:#fff}
.side-cta p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:16px}
.side-cta .btn-primary{width:100%}
.side-thumb{margin:-24px -24px 18px;border-radius:var(--radius-m) var(--radius-m) 0 0;overflow:hidden;aspect-ratio:16/10}
.side-thumb img{width:100%;height:100%;object-fit:cover}
.side-links li{border-top:1px solid var(--c-line);padding:11px 0}
.side-links li:first-child{border-top:0}
.side-links a{display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:500}
.side-links a::after{content:"";width:6px;height:6px;border-top:1.6px solid var(--c-line-strong);border-right:1.6px solid var(--c-line-strong);transform:rotate(45deg);transition:transform .2s var(--ease),border-color .2s var(--ease)}
.side-links a:hover::after{border-color:var(--c-accent);transform:rotate(45deg) translate(2px,-2px)}

/* ---------- buttons ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:0;border-radius:var(--radius-m);
  background:var(--c-accent);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--shadow-1);
  transition:filter .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary:hover{filter:brightness(1.04);transform:translateY(-1px);box-shadow:var(--shadow-2);color:#fff}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:1px solid var(--c-ink);border-radius:var(--radius-m);
  background:transparent;color:var(--c-ink);font-size:15px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.btn-secondary:hover{background:var(--c-ink);color:#fff}
.btn-secondary:active{transform:translateY(1px)}
.btn-light{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 22px;border:0;border-radius:var(--radius-m);
  background:#fff;color:var(--c-ink);font-size:15px;font-weight:600;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,0,0,.24);color:var(--c-ink)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-m);
  padding:26px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.step:hover{transform:translateY(-3px);border-color:var(--c-accent);box-shadow:var(--shadow-2)}
.step-no{
  font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--c-accent);
}
.step h3{font-size:18px;font-weight:600;margin-top:12px}
.step p{margin-top:10px;font-size:14px;color:var(--c-muted);line-height:1.8}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--c-ink);border-radius:var(--radius-m);color:#fff;
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;color:#fff}
.cta-band p{margin-top:8px;color:rgba(255,255,255,.72);font-size:14.5px;max-width:560px}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:first-child{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 2px;background:none;border:0;text-align:left;font-size:16px;font-weight:600;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--c-accent)}
.faq-icon{position:relative;width:14px;height:14px;flex:0 0 14px;transition:transform .2s var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-ink);border-radius:1px;
}
.faq-icon::before{left:0;top:6.2px;width:14px;height:1.6px}
.faq-icon::after{top:0;left:6.2px;width:1.6px;height:14px;transition:opacity .2s var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a p{padding:0 40px 22px 2px;font-size:14.5px;line-height:1.85;color:var(--c-muted)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary);color:rgba(255,255,255,.8);margin-top:0;border-top:1px solid rgba(255,255,255,.1)}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;
  padding:64px 0 40px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:#fff;color:var(--c-primary)}
.footer-brand .brand-text{font-size:17px;font-weight:700;color:#fff}
.footer-desc{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.68);max-width:360px}
.footer-col h4{font-size:13px;font-weight:600;letter-spacing:.06em;color:#fff;margin-bottom:14px;font-family:var(--font-num)}
.footer-col li{margin-bottom:9px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 30px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12.5px;color:rgba(255,255,255,.6)}
.footer-friend{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:12.5px}
.footer-friend span{color:rgba(255,255,255,.5);font-family:var(--font-num);letter-spacing:.06em}
.footer-friend a{color:rgba(255,255,255,.7)}
.footer-friend a:hover{color:#fff}

/* ---------- reveal ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .js .reveal{opacity:1;transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .layout{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:36px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .layout{grid-template-columns:1fr;gap:40px}
  .sidebar{position:static}
  .steps{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px}
  .hot-words{display:none}
  .entry{grid-template-columns:48px minmax(0,1fr) 140px;gap:18px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:52px 0}
  .section--tight{padding:44px 0}
  .menu-toggle{display:flex}
  .btn-ghost-sm{display:none}
  .nav-row{display:none}
  .channel-nav a{padding:6px 10px;font-size:14px}
  .page-hero .container{padding-top:44px;padding-bottom:40px}
  .page-hero-lead{font-size:15px}
  .steps{grid-template-columns:1fr}
  .entry{grid-template-columns:40px minmax(0,1fr);gap:14px;padding:22px 0}
  .entry-no{font-size:20px}
  .entry-thumb{display:none}
  .cta-band{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-band .btn-light{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
}
@media (max-width:480px){
  .page-hero h1{font-size:30px}
  .btn-primary,.btn-secondary,.btn-light{width:100%}
  .cta-band .btn-light{width:100%}
}

/* roulang page: category2 */
:root{
  --c-ink:#0F1115;
  --c-primary:#14524A;
  --c-primary-dark:#0E3D37;
  --c-accent:#FF5C2B;
  --c-accent-soft:rgba(255,92,43,.12);
  --c-mint:#4FD1A5;
  --c-bg:#F6F5F1;
  --c-surface:#FFFFFF;
  --c-line:#E4E1DA;
  --c-line-strong:#C9C4B8;
  --c-muted:#6B6F76;
  --r-sm:4px;
  --r-md:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,17,21,.05);
  --sh-2:0 10px 28px rgba(15,17,21,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
  --gutter:24px;
  --sec-gap:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-bg);
  letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-accent);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
}
.num{font-variant-numeric:tabular-nums;}
.section{padding:var(--sec-gap) 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.eyebrow{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--c-accent);
  text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--c-accent);display:block;}
.section-title{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.01em;
}
.section-sub{
  margin-top:10px;
  font-size:14px;
  color:var(--c-muted);
  max-width:640px;
  line-height:1.7;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-ink);
  white-space:nowrap;
}
.text-link span{transition:transform .2s var(--ease);}
.text-link:hover span{transform:translateX(6px);}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-md);
  font-size:15px;
  font-weight:600;
  letter-spacing:0;
  white-space:nowrap;
  transition:transform .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease);
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{filter:brightness(1.04);transform:translateY(-1px);box-shadow:var(--sh-2);color:#fff;}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-outline{border:1px solid var(--c-ink);color:var(--c-ink);background:transparent;}
.btn-outline:hover{background:var(--c-ink);color:#fff;}
.btn-light{border:1px solid rgba(255,255,255,.35);color:#fff;}
.btn-light:hover{background:#fff;color:var(--c-ink);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

/* 标签 */
.chip{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--r-pill);
  background:var(--c-bg);
  border:1px solid var(--c-line);
  font-size:12px;
  font-weight:500;
  color:var(--c-muted);
  white-space:nowrap;
}
.chip-accent{background:var(--c-accent-soft);border-color:rgba(255,92,43,.24);color:#C63E14;}
.chip-mint{background:rgba(79,209,165,.14);border-color:rgba(79,209,165,.34);color:#1F7A5C;}

/* 顶部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(246,245,241,.94);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-compact{
  background:rgba(246,245,241,.9);
  border-bottom-color:var(--c-line);
  box-shadow:0 1px 12px rgba(15,17,21,.04);
}
.header-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:62px;
  transition:height .24s var(--ease);
}
.site-header.is-compact .header-top{height:52px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:18px;
  letter-spacing:-.01em;
  color:var(--c-ink);
}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:30px;height:30px;
  display:grid;place-items:center;
  border-radius:var(--r-sm);
  background:var(--c-primary);
  color:#fff;
  font-size:14px;
  font-weight:700;
  letter-spacing:-.02em;
  flex:none;
}
.brand-text{white-space:nowrap;}
.brand-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--c-accent);
  flex:none;
  animation:breath 2s ease-in-out infinite;
}
@keyframes breath{0%,100%{opacity:.35;transform:scale(.85);}50%{opacity:1;transform:scale(1);}}
.header-actions{display:flex;align-items:center;gap:14px;}
.hot-words{
  display:flex;
  flex-direction:column;
  height:22px;
  overflow:hidden;
  position:relative;
  min-width:150px;
}
.hot-word{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-muted);
  opacity:0;
  transform:translateY(8px);
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.hot-word.is-on{opacity:1;transform:translateY(0);}
.hot-word::before{
  content:"热";
  display:grid;place-items:center;
  width:18px;height:18px;
  border-radius:var(--r-sm);
  background:var(--c-accent-soft);
  color:#C63E14;
  font-size:11px;
  font-weight:700;
  flex:none;
}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle i{display:block;width:16px;height:1.5px;background:var(--c-ink);transition:transform .2s var(--ease);}
.channel-bar{border-top:1px solid var(--c-line);}
.site-header.is-compact .channel-bar{border-top-color:transparent;}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;}
.channel-nav{
  display:flex;
  align-items:center;
  gap:26px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-nav a{
  position:relative;
  display:block;
  padding:14px 0;
  font-size:15px;
  color:var(--c-muted);
  font-weight:500;
  white-space:nowrap;
  transition:color .18s var(--ease);
}
.channel-nav a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:8px;
  height:2px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s var(--ease);
}
.channel-nav a:hover{color:var(--c-ink);}
.channel-nav a:hover::after{transform:scaleX(1);}
.channel-nav a.active{color:var(--c-ink);font-weight:600;}
.channel-nav a.active::after{transform:scaleX(1);}
.trend-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
  padding:6px 0;
  white-space:nowrap;
}
.trend-link .caret{
  width:0;height:0;
  border-left:4px solid transparent;
  border-right:4px solid transparent;
  border-bottom:6px solid var(--c-mint);
}
.site-header.is-compact .channel-nav a{padding:10px 0;}
.site-header.is-compact .channel-nav a::after{bottom:5px;}

/* 移动抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:var(--c-bg);
  padding:24px var(--gutter) 40px;
  transform:translateY(-100%);
  transition:transform .32s var(--ease);
  overflow-y:auto;
}
body.drawer-open .drawer{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{
  width:38px;height:38px;border:1px solid var(--c-line);border-radius:var(--r-md);
  display:grid;place-items:center;font-size:18px;line-height:1;
}
.drawer-nav{display:grid;gap:2px;margin-bottom:28px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 0;
  font-size:17px;
  font-weight:600;
  border-bottom:1px solid var(--c-line);
}
.drawer-nav a.active{color:var(--c-accent);}
.drawer-label{font-size:12px;letter-spacing:.06em;color:var(--c-muted);font-weight:600;margin:18px 0 10px;}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.drawer-search{display:flex;gap:8px;margin-top:8px;}
.drawer-search input{flex:1;height:44px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);}
body.drawer-open{overflow:hidden;}

/* Hero */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--c-ink);
  color:#fff;
  padding:76px 0 64px;
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  transform:scale(1.02);
}
.page-hero-bg::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,17,21,.92) 0%,rgba(15,17,21,.78) 46%,rgba(15,17,21,.58) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:rgba(255,255,255,.6);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.75);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb em{font-style:normal;opacity:.45;}
.page-hero h1{
  font-size:clamp(30px,4.2vw,46px);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.02em;
  max-width:900px;
}
.page-hero h1 mark{
  background:none;
  color:var(--c-accent);
  border-bottom:3px solid var(--c-accent);
  padding-bottom:2px;
}
.hero-lead{
  margin-top:18px;
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
  max-width:660px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-top:28px;
}
.hero-meta .chip{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.18);
  color:rgba(255,255,255,.82);
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}

/* 数据条 */
.data-bar{
  background:var(--c-surface);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.data-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
}
.data-item{
  padding:30px 24px;
  border-right:1px solid var(--c-line);
}
.data-item:last-child{border-right:0;}
.data-item:first-child{padding-left:0;}
.data-value{
  font-size:28px;
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  display:flex;
  align-items:baseline;
  gap:6px;
}
.data-value small{font-size:13px;font-weight:600;color:var(--c-muted);letter-spacing:0;}
.data-label{margin-top:8px;font-size:12.5px;color:var(--c-muted);letter-spacing:.02em;}
.data-bar-note{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  padding:14px 0 18px;
  font-size:13px;color:var(--c-muted);
}

/* 卡片网格 */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.news-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
  border-color:var(--c-accent);
  color:inherit;
}
.news-figure{
  position:relative;
  aspect-ratio:16/10;
  background:var(--c-line);
  overflow:hidden;
}
.news-figure img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s var(--ease);
}
.news-card:hover .news-figure img{transform:scale(1.04);}
.news-figure::after{
  content:"";
  position:absolute;inset:auto 0 0 0;height:56px;
  background:linear-gradient(180deg,rgba(15,17,21,0) 0%,rgba(15,17,21,.42) 100%);
}
.fig-tag{
  position:absolute;
  left:12px;top:12px;
  z-index:2;
  height:24px;
  display:inline-flex;align-items:center;
  padding:0 10px;
  border-radius:var(--r-pill);
  background:rgba(15,17,21,.72);
  color:#fff;
  font-size:12px;
  font-weight:500;
}
.news-body{
  padding:20px 20px 18px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.news-body h3{
  font-size:17px;
  font-weight:600;
  line-height:1.45;
  letter-spacing:-.01em;
  margin-bottom:10px;
}
.news-card:hover .news-body h3{color:var(--c-accent);}
.news-body p{
  font-size:14px;
  line-height:1.75;
  color:var(--c-muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{
  margin-top:18px;
  padding-top:14px;
  border-top:1px solid var(--c-line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.news-foot time{
  font-size:12px;
  color:var(--c-muted);
  font-variant-numeric:tabular-nums;
}
.arrow{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:26px;height:26px;
  border:1px solid var(--c-line);
  border-radius:50%;
  font-size:13px;
  color:var(--c-ink);
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.news-card:hover .arrow{background:var(--c-accent);border-color:var(--c-accent);color:#fff;transform:translateX(3px);}

/* 更新节奏 */
.rhythm{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:48px;
  align-items:start;
}
.timeline{
  border-top:1px solid var(--c-line);
}
.timeline li{
  display:grid;
  grid-template-columns:88px 1fr;
  gap:20px;
  padding:22px 0;
  border-bottom:1px solid var(--c-line);
}
.timeline .t-hour{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  color:var(--c-ink);
}
.timeline h3{
  font-size:16px;
  font-weight:600;
  margin-bottom:6px;
}
.timeline p{
  font-size:14px;
  line-height:1.75;
  color:var(--c-muted);
}
.subscribe-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:26px;
  box-shadow:var(--sh-1);
}
.subscribe-card h3{font-size:18px;font-weight:700;margin-bottom:10px;}
.subscribe-card p{font-size:14px;line-height:1.75;color:var(--c-muted);margin-bottom:18px;}
.field{display:grid;gap:10px;margin-bottom:14px;}
.field label{font-size:13px;font-weight:600;color:var(--c-ink);}
.field input,.field select{
  height:44px;
  width:100%;
  padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  background:var(--c-surface);
  color:var(--c-ink);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input::placeholder{color:#9AA0A6;}
.field input:focus,.field select:focus{
  outline:none;
  border-color:var(--c-accent);
  box-shadow:0 0 0 3px var(--c-accent-soft);
}
.form-note{font-size:12px;color:var(--c-muted);margin-top:12px;line-height:1.7;}
.check-list{display:grid;gap:10px;margin-top:6px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--c-muted);line-height:1.7;
}
.check-list li::before{
  content:"";
  width:14px;height:14px;
  margin-top:7px;
  flex:none;
  border-radius:var(--r-sm);
  background:var(--c-mint);
  opacity:.85;
}

/* 说明索引 */
.index-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:0 48px;
  border-top:1px solid var(--c-line);
}
.index-item{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:18px;
  padding:26px 0;
  border-bottom:1px solid var(--c-line);
}
.index-no{
  font-size:34px;
  font-weight:800;
  line-height:1;
  color:var(--c-line-strong);
  letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;
  transition:color .2s var(--ease);
}
.index-item:hover .index-no{color:var(--c-accent);}
.index-item h3{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.index-item p{font-size:14px;line-height:1.75;color:var(--c-muted);}

/* FAQ */
.faq-wrap{max-width:900px;}
.faq{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  letter-spacing:-.01em;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--c-accent);}
.faq-icon{
  flex:none;
  width:22px;height:22px;
  position:relative;
  transition:transform .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--c-ink);
  transform:translate(-50%,-50%);
  transition:background-color .18s var(--ease);
}
.faq-icon::before{width:12px;height:1.5px;}
.faq-icon::after{width:1.5px;height:12px;}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(180deg);}
.faq-q[aria-expanded="true"] .faq-icon::after{opacity:0;}
.faq-q[aria-expanded="true"]{color:var(--c-accent);}
.faq-q[aria-expanded="true"] .faq-icon::before{background:var(--c-accent);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-a p{
  padding:0 40px 22px 0;
  font-size:15px;
  line-height:1.85;
  color:var(--c-muted);
}

/* CTA 条 */
.cta-bar{
  margin-top:12px;
  background:var(--c-ink);
  color:#fff;
  border-radius:var(--r-md);
  padding:32px 34px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.cta-bar h2{font-size:20px;font-weight:700;line-height:1.4;}
.cta-bar p{margin-top:8px;font-size:14px;color:rgba(255,255,255,.68);line-height:1.75;max-width:620px;}

/* 图墙 */
.wall-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.wall-item{
  position:relative;
  aspect-ratio:1/1;
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--c-line);
}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.wall-item::after{
  content:"";
  position:absolute;inset:0;
  background:rgba(15,17,21,0);
  transition:background-color .3s var(--ease);
}
.wall-item span{
  position:absolute;
  left:12px;bottom:12px;
  z-index:2;
  font-size:12.5px;
  font-weight:600;
  color:#fff;
  opacity:0;
  transform:translateY(6px);
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.wall-item:hover img{transform:scale(1.05);}
.wall-item:hover::after{background:rgba(15,17,21,.55);}
.wall-item:hover span{opacity:1;transform:translateY(0);}

/* 页脚 */
.site-footer{
  margin-top:var(--sec-gap);
  background:var(--c-primary);
  color:rgba(255,255,255,.76);
  padding:64px 0 28px;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.16);
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:#fff;
  letter-spacing:-.01em;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:340px;}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:0;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:rgba(255,255,255,.74);font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding-top:22px;
  flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.6);}
.footer-friend{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13px;}
.footer-friend span{color:rgba(255,255,255,.5);}
.footer-friend a{color:rgba(255,255,255,.72);}
.footer-friend a:hover{color:#fff;}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-in{opacity:1;transform:translateY(0);}

/* 响应式 */
@media (max-width:1279px){
  :root{--sec-gap:72px;}
  .card-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  :root{--sec-gap:56px;}
  .hot-words{display:none;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .data-grid{grid-template-columns:repeat(2,1fr);}
  .data-item{border-bottom:1px solid var(--c-line);}
  .data-item:nth-child(2n){border-right:0;}
  .data-item:nth-child(1),.data-item:nth-child(2){padding-top:26px;}
  .data-item:nth-child(3),.data-item:nth-child(4){border-bottom:0;}
  .data-item:first-child{padding-left:24px;}
  .rhythm{grid-template-columns:1fr;gap:32px;}
  .index-grid{grid-template-columns:1fr;gap:0;}
  .wall-grid{grid-template-columns:repeat(3,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--gutter:18px;--sec-gap:44px;}
  body{font-size:16px;}
  .channel-nav{gap:20px;}
  .channel-bar{display:none;}
  .nav-toggle{display:flex;}
  .hot-words{display:none;}
  .header-top{height:56px;}
  .page-hero{padding:52px 0 46px;}
  .page-hero h1{font-size:30px;}
  .card-grid{grid-template-columns:1fr;}
  .data-grid{grid-template-columns:1fr 1fr;}
  .data-item{padding:22px 16px;}
  .data-item:first-child{padding-left:16px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px;}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .cta-bar .btn{width:100%;}
  .timeline li{grid-template-columns:64px 1fr;gap:14px;}
  .timeline .t-hour{font-size:17px;}
  .index-item{grid-template-columns:44px 1fr;gap:14px;}
  .index-no{font-size:26px;}
  .wall-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .btn{width:100%;}
  .hero-cta .btn,.subscribe-card .btn{width:100%;}
  .wall-grid{grid-template-columns:1fr 1fr;gap:12px;}
  .news-body{padding:18px 16px 16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --c-ink:#0F1115;
  --c-primary:#14524A;
  --c-accent:#FF5C2B;
  --c-mint:#4FD1A5;
  --c-bg:#F6F5F1;
  --c-surface:#FFFFFF;
  --c-line:#E4E1DA;
  --c-line-strong:#C9C4B8;
  --c-muted:#6B6F76;
  --r-xs:4px;
  --r-sm:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,17,21,.05);
  --sh-2:0 10px 28px rgba(15,17,21,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-num:"Space Grotesk",Inter,"Segoe UI",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;line-height:1.3}
p{margin:0}
input,select{font:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
::selection{background:var(--c-accent);color:#fff}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.94);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-shrunk{
  background:rgba(246,245,241,.9);
  border-bottom-color:var(--c-line);
  box-shadow:0 1px 12px rgba(15,17,21,.07);
}
.header-top{
  height:58px;display:flex;align-items:center;overflow:hidden;
  transition:height .24s var(--ease),opacity .2s var(--ease);
}
.site-header.is-shrunk .header-top{height:0;opacity:0}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:var(--r-sm);
  background:var(--c-primary);color:#fff;
  font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.02em;
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-0.01em;white-space:nowrap}
.brand-dot{
  width:8px;height:8px;border-radius:50%;background:var(--c-accent);
  animation:breath 2s var(--ease) infinite;
}
@keyframes breath{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.4;transform:scale(.8)}
}

.header-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.hot-words{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-muted)}
.hot-label{
  font-size:11px;letter-spacing:.12em;color:var(--c-accent);font-weight:600;
  border:1px solid rgba(255,92,43,.35);border-radius:var(--r-pill);padding:2px 8px;
}
.hot-track{position:relative;width:186px;height:22px;overflow:hidden}
.hot-item{
  position:absolute;left:0;top:0;height:22px;line-height:22px;white-space:nowrap;
  opacity:0;transform:translateY(4px);
  transition:opacity .4s var(--ease),transform .4s var(--ease);
}
.hot-item.is-on{opacity:1;transform:translateY(0)}

.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-muted);
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.icon-btn:hover{color:var(--c-ink);border-color:var(--c-line-strong);background:#fff}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:0;
  transition:transform .16s var(--ease),box-shadow .24s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-xs{height:32px;padding:0 14px;font-size:13px}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{filter:brightness(1.04);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{border:1px solid var(--c-ink);color:var(--c-ink);background:transparent}
.btn-outline:hover{background:var(--c-ink);color:#fff}
.btn-outline:active{transform:translateY(1px)}

.header-nav{
  border-top:1px solid transparent;
  transition:height .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-shrunk .header-nav{border-top-color:var(--c-line)}
.nav-inner{display:flex;align-items:center;gap:18px;height:46px;transition:height .24s var(--ease)}
.site-header.is-shrunk .nav-inner{height:60px}

.brand-compact{display:none;align-items:center;gap:8px;flex:0 0 auto}
.site-header.is-shrunk .brand-compact{display:flex}
.brand-compact .brand-mark{width:26px;height:26px;font-size:11px}
.brand-compact .brand-text{font-size:15px}

.channel-nav{display:flex;align-items:center;gap:26px;min-width:0}
.channel-nav a{
  position:relative;display:block;padding:6px 0;
  font-size:15px;font-weight:500;color:var(--c-muted);white-space:nowrap;
  transition:color .18s var(--ease);
}
.channel-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.channel-nav a:hover{color:var(--c-ink)}
.channel-nav a:hover::after{transform:scaleX(1)}
.channel-nav a.active{color:var(--c-ink);font-weight:600}
.channel-nav a.active::after{transform:scaleX(1)}

.trend-link{
  margin-left:auto;display:inline-flex;align-items:center;gap:6px;flex:0 0 auto;
  font-size:14px;color:var(--c-muted);transition:color .18s var(--ease);
}
.trend-link:hover{color:var(--c-accent)}
.caret{
  width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;
  border-top:5px solid currentColor;display:inline-block;
}

.menu-toggle{
  display:none;width:38px;height:38px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.menu-toggle span{display:block;width:16px;height:1.5px;background:var(--c-ink);border-radius:2px}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;background:var(--c-bg);
  transform:translateY(-100%);transition:transform .32s var(--ease);
  display:flex;flex-direction:column;padding:18px 20px 32px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{
  width:38px;height:38px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;color:var(--c-muted);
}
.drawer-search{
  display:flex;align-items:center;gap:10px;border:1px solid var(--c-line);
  background:var(--c-surface);border-radius:var(--r-sm);padding:0 14px;height:44px;margin-bottom:22px;
}
.drawer-search input{flex:1;border:0;background:transparent;height:100%;outline:none;font-size:15px}
.drawer-title{font-size:12px;letter-spacing:.14em;color:var(--c-muted);margin:14px 0 10px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 0;border-bottom:1px solid var(--c-line);font-size:16px;font-weight:500;
}
.drawer-nav a.active{color:var(--c-accent);font-weight:600}
.drawer-hot{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.drawer-hot span{
  font-size:13px;color:var(--c-muted);border:1px solid var(--c-line);
  border-radius:var(--r-pill);padding:5px 12px;background:var(--c-surface);
}

/* ---------- 分类 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:56px 0 52px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,17,21,.80),rgba(15,17,21,.70));
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px;color:rgba(255,255,255,.68);margin-bottom:20px}
.breadcrumb a{transition:color .18s var(--ease)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.page-hero h1{
  font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.2;
  letter-spacing:-0.01em;max-width:820px;
}
.page-hero .hero-sub{
  margin-top:16px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.78);max-width:680px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags span{
  font-size:12px;letter-spacing:.04em;padding:5px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:rgba(255,255,255,.9);
}

/* ---------- 数据条 ---------- */
.stat-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:26px 22px;border-right:1px solid var(--c-line)}
.stat:last-child{border-right:0}
.stat-num{
  display:block;font-family:var(--font-num);font-size:28px;font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-0.01em;
}
.stat-num em{font-style:normal;font-size:14px;font-weight:600;color:var(--c-muted);margin-left:4px}
.stat-label{display:block;margin-top:6px;font-size:12px;color:var(--c-muted);letter-spacing:.04em}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;
}
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--c-accent);text-transform:uppercase;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--c-accent);display:block}
.section-head h2{margin-top:10px;font-size:clamp(22px,2.6vw,30px);font-weight:700}
.section-head p{
  margin-top:10px;font-size:15px;color:var(--c-muted);max-width:640px;line-height:1.8;
}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-ink);
  flex:0 0 auto;transition:color .18s var(--ease),gap .24s var(--ease);
}
.link-more::after{content:"→";transition:transform .24s var(--ease)}
.link-more:hover{color:var(--c-accent)}
.link-more:hover::after{transform:translateX(6px)}

/* ---------- 规则编号列表 ---------- */
.rule-list{border-top:1px solid var(--c-line)}
.rule-item{
  display:grid;grid-template-columns:92px 1fr;gap:24px;
  padding:30px 0;border-bottom:1px solid var(--c-line);
  transition:background .24s var(--ease);
}
.rule-num{
  font-family:var(--font-num);font-size:40px;font-weight:700;line-height:1;
  color:var(--c-line-strong);font-variant-numeric:tabular-nums;
  transition:color .24s var(--ease);
}
.rule-item:hover .rule-num{color:var(--c-accent)}
.rule-body h3{font-size:19px;font-weight:600}
.rule-body p{margin-top:10px;font-size:15.5px;color:var(--c-muted);line-height:1.9;max-width:860px}
.rule-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--r-pill);background:#EFEDE7;color:var(--c-muted);
  font-size:12px;letter-spacing:.02em;
}
.chip.is-mint{background:rgba(79,209,165,.14);color:#1F7A5C}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-sm);
  padding:28px 26px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-accent)}
.step-idx{
  font-family:var(--font-num);font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--c-accent);
}
.step h3{margin-top:14px;font-size:18px;font-weight:600}
.step p{margin-top:10px;font-size:14.5px;color:var(--c-muted);line-height:1.85}

/* ---------- 图墙 ---------- */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.gal-item{
  position:relative;display:block;border-radius:var(--r-sm);overflow:hidden;
  aspect-ratio:4/3;background:var(--c-line);
}
.gal-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.gal-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,17,21,0) 42%,rgba(15,17,21,.75));
  opacity:.75;transition:opacity .4s var(--ease);
}
.gal-item:hover img{transform:scale(1.04)}
.gal-item:hover::after{opacity:.95}
.gal-cap{
  position:absolute;left:14px;bottom:12px;z-index:2;color:#fff;
  font-size:14px;font-weight:600;letter-spacing:.02em;
}
.gal-tag{
  position:absolute;left:14px;top:12px;z-index:2;
  font-size:11px;letter-spacing:.06em;color:#fff;
  background:rgba(15,17,21,.55);border-radius:var(--r-pill);padding:3px 10px;
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line);max-width:960px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;padding:22px 0;text-align:left;font-size:16.5px;font-weight:600;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--c-accent)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-ink);
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.faq-icon::before{left:0;top:7.5px;width:16px;height:1px}
.faq-icon::after{left:7.5px;top:0;width:1px;height:16px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-item.is-open .faq-q{color:var(--c-accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a-inner{padding:0 0 24px;font-size:15px;line-height:1.95;color:var(--c-muted);max-width:800px}

/* ---------- 相关频道 ---------- */
.channel-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ch-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-sm);
  padding:26px 24px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.ch-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-accent)}
.ch-card h3{font-size:17px;font-weight:600}
.ch-card p{font-size:14.5px;color:var(--c-muted);line-height:1.85}
.ch-card .ch-arrow{margin-top:auto;font-size:14px;font-weight:600;color:var(--c-accent)}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--c-ink);color:#fff;border-radius:var(--r-sm);
  padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h2{font-size:clamp(19px,2.2vw,24px);font-weight:700}
.cta-band p{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.72);line-height:1.8;max-width:640px}
.cta-band .btn-primary{flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary);color:rgba(255,255,255,.76);margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding:64px 0 44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.72);transition:color .18s var(--ease)}
.footer-col ul li a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.16);
  padding:22px 0 30px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.6)}
.footer-friend{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13px}
.footer-friend span{color:rgba(255,255,255,.5)}
.footer-friend a{color:rgba(255,255,255,.72);transition:color .18s var(--ease)}
.footer-friend a:hover{color:#fff}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hot-track{width:150px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .channel-cards{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .hot-words{display:none}
}
@media (max-width:900px){
  .steps{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--c-line)}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-top{height:54px}
  .menu-toggle{display:inline-flex}
  .header-tools .btn-outline{display:none}
  .channel-nav{
    gap:10px;overflow-x:auto;white-space:nowrap;padding-bottom:2px;
    scrollbar-width:none;-ms-overflow-style:none;
  }
  .channel-nav::-webkit-scrollbar{display:none}
  .channel-nav a{
    border:1px solid var(--c-line);border-radius:var(--r-pill);
    padding:6px 14px;font-size:13.5px;background:var(--c-surface);
  }
  .channel-nav a::after{display:none}
  .channel-nav a.active{border-color:var(--c-accent);color:var(--c-accent)}
  .trend-link{display:none}
  .brand-compact{display:none!important}
  .nav-inner{height:52px}
  .site-header.is-shrunk .nav-inner{height:56px}
  .site-header.is-shrunk .header-top{height:0}
  .page-hero{padding:40px 0 38px}
  .page-hero h1{font-size:clamp(24px,7vw,32px)}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px}
  .rule-item{grid-template-columns:56px 1fr;gap:14px;padding:24px 0}
  .rule-num{font-size:30px}
  .gallery{grid-template-columns:1fr 1fr;gap:12px}
  .channel-cards{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px}
  .cta-band .btn-primary{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;padding:44px 0 32px;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:520px){
  .stat-grid{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--c-line);padding:20px 18px}
  .stat:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .header-tools .btn-xs{width:auto}
}
@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}
}