/* roulang page: index */
:root{
  --ink:#12160F;
  --ink-2:#5C6155;
  --paper:#F6F4EE;
  --surface:#FFFFFF;
  --line:#E4E1D8;
  --volt:#C8F135;
  --volt-soft:#EDF5D6;
  --flame:#FF6A2B;
  --ink-muted:#A8AD9C;
  --r-card:6px;
  --r-input:4px;
  --r-btn:999px;
  --sh-1:0 1px 2px rgba(18,22,15,.05);
  --sh-2:0 12px 32px rgba(18,22,15,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:320ms;
  --cw:1200px;
  --sy:clamp(56px,8vw,112px);
  --font-cn:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-num:'Barlow Condensed','Oswald','Inter',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3{letter-spacing:-.02em;}
::selection{background:var(--volt);color:var(--ink);}
:focus-visible{outline:2px solid var(--volt);outline-offset:2px;}
.container{max-width:var(--cw);margin:0 auto;padding:0 24px;width:100%;}
.section{padding:var(--sy) 0;}
.section--tight{padding:clamp(40px,5vw,72px) 0;}
.section--paper{background:var(--paper);}
.section--surface{background:var(--surface);}
.section--ink{background:var(--ink);color:var(--paper);}

/* ---------- 通用排版 ---------- */
.eyebrow{
  display:inline-block;
  font-size:14px;font-weight:600;letter-spacing:.09em;
  color:var(--ink-2);text-transform:uppercase;margin-bottom:14px;
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:clamp(28px,4vw,48px);}
.section-head__main{max-width:720px;}
.section-head h2{font-size:clamp(26px,3.2vw,40px);font-weight:800;line-height:1.15;}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;line-height:1.8;max-width:64ch;}
.section--ink .eyebrow{color:var(--ink-muted);}
.section--ink .section-head p{color:var(--ink-muted);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  border:1px solid transparent;background:transparent;color:var(--ink);
  transition:background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease),transform var(--t) var(--ease);
}
.btn__arrow{display:inline-block;transition:transform var(--t) var(--ease);}
.btn:hover .btn__arrow{transform:translateX(4px);}
.btn--primary{background:var(--volt);color:var(--ink);}
.btn--primary:hover{background:var(--ink);color:var(--paper);}
.btn--ghost{border-color:var(--ink);color:var(--ink);}
.btn--ghost:hover{background:var(--ink);color:var(--paper);}
.btn--ghost-light{border-color:rgba(246,244,238,.4);color:var(--paper);}
.btn--ghost-light:hover{background:var(--paper);color:var(--ink);border-color:var(--paper);}
.btn--block{width:100%;justify-content:center;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:15px;
  border-bottom:1px solid var(--ink);padding-bottom:3px;
  transition:border-color var(--t) var(--ease),color var(--t) var(--ease);
}
.text-link:hover{border-color:var(--volt);color:var(--ink);}

/* ---------- 标签 ---------- */
.tag{
  display:inline-block;padding:4px 10px;border-radius:3px;
  background:var(--volt-soft);color:#2E3A12;
  font-size:13px;font-weight:600;letter-spacing:.02em;line-height:1.6;
}
.tag--flame{background:rgba(255,106,43,.12);color:#A83E12;}
.tag--outline{background:transparent;border:1px solid var(--line);color:var(--ink-2);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.brand-row{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:64px;
}
.brand{display:flex;align-items:center;gap:10px;min-width:0;}
.brand__mark{
  position:relative;width:26px;height:26px;border-radius:5px;background:var(--ink);flex:0 0 auto;
}
.brand__mark::after{
  content:"";position:absolute;inset:7px;border-radius:2px;background:var(--volt);
}
.brand__name{
  font-size:clamp(16px,1.5vw,20px);font-weight:900;line-height:1.1;
  letter-spacing:-.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.brand__sub{display:none;}
.brand-actions{display:flex;align-items:center;gap:20px;}
.brand-actions .btn{padding:11px 22px;font-size:14px;}
.channel-row{border-top:1px solid var(--line);}
.channel-nav{display:flex;align-items:center;gap:28px;height:52px;}
.channel-nav a{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-2);
  padding:16px 0;transition:color var(--t) var(--ease);
}
.channel-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--volt);
  transform:scaleX(0);transform-origin:left center;transition:transform var(--t) var(--ease);
}
.channel-nav a:hover{color:var(--ink);}
.channel-nav a.active{color:var(--ink);}
.channel-nav a.active::after{transform:scaleX(1);}
.menu-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-input);
  background:var(--surface);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform var(--t) var(--ease),opacity var(--t) var(--ease);}
.mobile-panel{
  position:fixed;top:0;right:0;bottom:0;width:78%;max-width:340px;z-index:90;
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform var(--t) var(--ease);
  padding:24px 20px;overflow-y:auto;
}
.mobile-panel.is-open{transform:translateX(0);}
.mobile-panel__title{font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--ink-2);margin-bottom:18px;}
.mobile-panel a{
  display:block;padding:14px 12px;font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.active{border-left:3px solid var(--volt);padding-left:14px;}
.mobile-panel .btn{margin-top:22px;}
.mobile-mask{
  position:fixed;inset:0;background:rgba(18,22,15,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity var(--t) var(--ease),visibility var(--t) var(--ease);
}
.mobile-mask.is-open{opacity:1;visibility:visible;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:clamp(44px,6vw,84px) 0 clamp(32px,4vw,56px);
  background-color:var(--paper);
  background-image:
    repeating-linear-gradient(90deg,rgba(18,22,15,.035) 0 1px,transparent 1px 56px),
    repeating-linear-gradient(0deg,rgba(18,22,15,.035) 0 1px,transparent 1px 56px);
}
.hero-grid{align-items:center;}
.hero__badge{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--volt);border-radius:3px;
  padding:6px 12px;font-size:14px;font-weight:600;color:var(--ink);
  background:rgba(200,241,53,.14);margin-bottom:22px;
}
.hero__badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--flame);}
h1.hero__title{
  font-size:clamp(34px,5.2vw,64px);
  font-weight:900;line-height:1.08;letter-spacing:-.02em;
  max-width:14em;
}
.hero__sub{
  margin-top:22px;font-size:clamp(17px,1.5vw,19px);line-height:1.8;
  color:var(--ink-2);max-width:34em;
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero__media{
  margin:0;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  background:var(--surface);transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.hero__media img{width:100%;aspect-ratio:4/5;object-fit:cover;}
.hero__media:hover{transform:translateY(-6px);box-shadow:var(--sh-2);}
.quick-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:clamp(36px,5vw,64px);border-top:1px solid var(--line);padding-top:28px;
}
.quick-stats__item{padding:0 24px;border-left:1px solid var(--line);}
.quick-stats__item:first-child{border-left:0;padding-left:0;}
.quick-stats__num{
  font-family:var(--font-num);font-size:clamp(32px,4vw,48px);font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;
}
.quick-stats__num em{font-style:normal;color:var(--flame);font-size:.55em;margin-left:2px;}
.quick-stats__label{font-size:14px;color:var(--ink-2);margin-top:8px;line-height:1.6;}

/* ---------- 服务能力编号列表 ---------- */
.cap-list{border-top:1px solid var(--line);}
.cap-item{
  display:grid;grid-template-columns:110px 1fr;gap:20px;align-items:start;
  padding:28px 0;border-bottom:1px solid var(--line);
  transition:background var(--t) var(--ease),padding-left var(--t) var(--ease);
}
.cap-item:hover{padding-left:12px;background:var(--surface);}
.cap-item__no{
  font-family:var(--font-num);font-size:44px;font-weight:700;line-height:1;
  color:var(--ink);opacity:.2;font-variant-numeric:tabular-nums;
  transition:opacity var(--t) var(--ease),color var(--t) var(--ease);
}
.cap-item:hover .cap-item__no{opacity:1;color:var(--ink);}
.cap-item__body h3{font-size:21px;font-weight:700;line-height:1.4;}
.cap-item__body p{margin-top:8px;font-size:15px;line-height:1.75;color:var(--ink-2);max-width:68ch;}
.cap-item__tags{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- 深色数据区 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:clamp(32px,4vw,52px);}
.stat{padding:0 28px;border-left:1px solid rgba(246,244,238,.14);}
.stat:first-child{border-left:0;padding-left:0;}
.stat__num{
  font-family:var(--font-num);font-size:clamp(40px,6vw,72px);font-weight:800;line-height:1;
  color:var(--paper);font-variant-numeric:tabular-nums;display:flex;align-items:baseline;gap:8px;
}
.stat__dot{width:8px;height:8px;border-radius:50%;background:var(--volt);flex:0 0 auto;margin-bottom:10px;}
.stat__label{margin-top:12px;font-size:14px;line-height:1.7;color:var(--ink-muted);}

/* ---------- 场景图文交替 ---------- */
.alt-row{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);align-items:center;margin-bottom:clamp(36px,5vw,72px);}
.alt-row:last-child{margin-bottom:0;}
.alt-row__media{margin:0;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--surface);}
.alt-row__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 600ms var(--ease);}
.alt-row:hover .alt-row__media img{transform:scale(1.03);}
.alt-row--flip .alt-row__media{order:2;}
.alt-row__body h3{font-size:clamp(21px,2.2vw,27px);font-weight:800;line-height:1.3;margin-top:14px;}
.alt-row__body p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:56ch;}
.alt-row__points{margin-top:18px;display:grid;gap:10px;}
.alt-row__points li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);line-height:1.7;}
.alt-row__points li::before{
  content:"";flex:0 0 auto;width:14px;height:14px;margin-top:7px;border-radius:50%;
  background:var(--volt);box-shadow:inset 0 0 0 3px var(--paper);
}

/* ---------- 资讯卡片 ---------- */
.news-grid{margin-top:8px;}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),transform var(--t) var(--ease);
}
.news-card:hover{border-color:var(--ink);box-shadow:var(--sh-2);transform:translateY(-4px);}
.news-card__cover{display:block;overflow:hidden;background:var(--paper);}
.news-card__cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 600ms var(--ease);}
.news-card:hover .news-card__cover img{transform:scale(1.03);}
.news-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-card__title{
  margin-top:12px;font-size:17px;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__title a{background-image:linear-gradient(var(--ink),var(--ink));background-size:0 1px;background-repeat:no-repeat;background-position:0 100%;transition:background-size var(--t) var(--ease);}
.news-card:hover .news-card__title a{background-size:100% 1px;}
.news-card__desc{
  margin-top:10px;font-size:15px;line-height:1.7;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__meta{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-2);border-top:1px solid var(--line);margin-top:18px;
}
.news-card__meta time{font-variant-numeric:tabular-nums;}
.news-card__go{font-weight:700;color:var(--ink);}
.empty-state{
  min-height:220px;border:1px dashed var(--line);border-radius:var(--r-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  color:var(--ink-2);font-size:15px;background:var(--surface);
}
.empty-state__mark{
  width:44px;height:44px;border:1px solid var(--line);border-radius:50%;position:relative;
}
.empty-state__mark::after{
  content:"";position:absolute;left:50%;top:50%;width:14px;height:1px;background:var(--line);transform:translate(-50%,-50%);
}

/* ---------- 方案阶梯 ---------- */
.plan-card{
  position:relative;height:100%;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px 26px 30px;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),transform var(--t) var(--ease);
}
.plan-card:hover{border-color:var(--ink);box-shadow:var(--sh-2);}
.plan-card--featured{border-top:3px solid var(--volt);transform:translateY(-4px);}
.plan-card__name{font-size:20px;font-weight:800;}
.plan-card__line{margin-top:8px;font-size:15px;color:var(--ink-2);line-height:1.7;min-height:3.4em;}
.plan-card__price{
  margin-top:18px;padding-top:18px;border-top:1px solid var(--line);
  font-family:var(--font-num);font-size:38px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums;
}
.plan-card__price span{font-family:var(--font-cn);font-size:14px;font-weight:500;color:var(--ink-2);margin-left:8px;}
.plan-card__features{margin-top:22px;display:grid;gap:12px;}
.plan-card__features li{display:flex;gap:10px;font-size:15px;line-height:1.7;color:var(--ink-2);}
.plan-card__features li::before{
  content:"✓";flex:0 0 auto;width:18px;height:18px;margin-top:5px;border-radius:50%;
  background:var(--volt);color:var(--ink);font-size:11px;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.plan-card .btn{margin-top:24px;}
.plan-card__flag{
  position:absolute;top:-13px;right:22px;background:var(--ink);color:var(--paper);
  font-size:12px;font-weight:700;letter-spacing:.06em;padding:5px 12px;border-radius:3px;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.accordion{border:0;background:transparent;margin:0;}
.accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.accordion-item:first-child{border-top:1px solid var(--line);}
.accordion-title{
  position:relative;background:transparent;border:0;
  padding:24px 56px 24px 20px;font-size:17px;font-weight:700;color:var(--ink);line-height:1.55;
  transition:color var(--t) var(--ease);
}
.accordion-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:0;background:var(--volt);transition:height var(--t) var(--ease);
}
.accordion-item.is-active .accordion-title::before{height:26px;}
.accordion-title::after{
  content:"+";position:absolute;right:14px;top:50%;transform:translateY(-50%);
  font-size:24px;font-weight:400;line-height:1;color:var(--ink-2);
  transition:transform var(--t) var(--ease),color var(--t) var(--ease);
}
.accordion-item.is-active .accordion-title::after{transform:translateY(-50%) rotate(45deg);color:var(--ink);}
.accordion-content{
  display:none;background:transparent;border:0;
  padding:0 56px 24px 20px;font-size:16px;line-height:1.85;color:var(--ink-2);
}
.accordion-item.is-active > .accordion-content{display:block;}
.accordion-content p{margin:0 0 .8em;}
.accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA + 表单 ---------- */
.cta-bar{
  background:var(--ink);color:var(--paper);border-radius:var(--r-card);
  padding:clamp(28px,4vw,44px) clamp(24px,4vw,48px);
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-bar h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.25;}
.cta-bar p{margin-top:10px;font-size:15px;color:var(--ink-muted);line-height:1.75;max-width:48ch;}
.cta-bar__actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(24px,3vw,40px);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-field--full{grid-column:1 / -1;}
.form-field label{font-size:14px;font-weight:600;color:var(--ink);}
.form-field input,.form-field select,.form-field textarea{
  width:100%;font-family:inherit;font-size:15px;color:var(--ink);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-input);
  padding:0 14px;height:48px;line-height:46px;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.form-field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--volt);box-shadow:0 0 0 2px rgba(200,241,53,.5);
}
.form-hint{font-size:13px;color:var(--ink-2);}
.form-note{font-size:13px;color:var(--flame);min-height:20px;line-height:1.6;}
.form-contact{margin-top:26px;padding-top:22px;border-top:1px solid var(--line);display:grid;gap:10px;font-size:15px;color:var(--ink-2);}
.form-contact strong{color:var(--ink);font-weight:700;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--paper);padding:clamp(48px,7vw,88px) 0 0;margin-top:var(--sy);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand__name{color:var(--paper);}
.footer-brand .brand__mark{background:var(--paper);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--ink-muted);max-width:34ch;}
.footer-title{font-size:15px;font-weight:700;color:var(--paper);margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:var(--ink-muted);transition:color var(--t) var(--ease);}
.footer-links a:hover{color:var(--volt);}
.footer-bottom{
  margin-top:clamp(36px,5vw,56px);border-top:1px solid rgba(246,244,238,.14);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--ink-muted);font-variant-numeric:tabular-nums;flex-wrap:wrap;
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity 600ms var(--ease),transform 600ms var(--ease);}
.reveal.is-in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 20px;}
}
@media (max-width:1023px){
  .channel-row{display:none;}
  .menu-toggle{display:flex;}
  .brand-actions .btn{display:none;}
  .hero-grid > .cell:last-child{margin-top:34px;}
  .hero__media img{aspect-ratio:16/10;}
  .alt-row{grid-template-columns:1fr;gap:22px;}
  .alt-row--flip .alt-row__media{order:0;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:32px 0;}
  .stat{padding:0 20px;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid rgba(246,244,238,.14);padding-top:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-bar{flex-direction:column;align-items:flex-start;}
  .quick-stats{grid-template-columns:repeat(2,1fr);gap:24px 0;}
  .quick-stats__item:nth-child(3){border-left:0;padding-left:0;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .hero{padding-top:32px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px;}
  .cap-item{grid-template-columns:56px 1fr;gap:14px;padding:22px 0;}
  .cap-item__no{font-size:34px;}
  .form-grid{grid-template-columns:1fr;}
  .brand-row{height:58px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .news-card__meta{flex-direction:row;}
}
@media (max-width:519px){
  .quick-stats{grid-template-columns:1fr;}
  .quick-stats__item{border-left:0;padding:14px 0 0;border-top:1px solid var(--line);}
  .quick-stats__item:first-child{border-top:0;padding-top:0;}
  .stat-grid{grid-template-columns:1fr;}
  .stat{border-left:0 !important;padding:20px 0 0 !important;border-top:1px solid rgba(246,244,238,.14);}
  .stat:first-child{border-top:0;padding-top:0 !important;}
  .footer-grid{grid-template-columns:1fr;}
  .hero__actions .btn{width:100%;justify-content:center;}
}

/* roulang page: article */
:root{
  --ink:#12160F;
  --ink-2:#5C6155;
  --paper:#F6F4EE;
  --surface:#FFFFFF;
  --line:#E4E1D8;
  --volt:#C8F135;
  --flame:#FF6A2B;
  --paper-on-ink:#F6F4EE;
  --paper-on-ink-2:#A8AD9C;
  --radius-card:6px;
  --radius-input:4px;
  --radius-tag:3px;
  --shadow-1:0 1px 2px rgba(18,22,15,.05);
  --shadow-2:0 12px 32px rgba(18,22,15,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:320ms;
  --section:clamp(56px,8vw,112px);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--t) var(--ease),border-color var(--t) var(--ease);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
:focus-visible{outline:2px solid var(--volt);outline-offset:2px;}
.num{font-family:'Barlow Condensed','Oswald','Inter',system-ui,sans-serif;font-variant-numeric:tabular-nums;letter-spacing:.01em;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.container--read{max-width:1200px;}

/* ---------- 品牌行 ---------- */
.site-header{position:relative;z-index:40;}
.brand-bar{background:var(--surface);border-bottom:1px solid var(--line);}
.brand-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:900;letter-spacing:-.01em;color:var(--ink);}
.brand__mark{position:relative;width:22px;height:22px;border-radius:3px;background:var(--ink);flex:0 0 22px;}
.brand__mark::after{content:"";position:absolute;inset:6px;border-radius:1px;background:var(--volt);}
.brand__name{white-space:nowrap;}
.brand-bar__right{display:flex;align-items:center;gap:22px;}
.nav-search{display:flex;align-items:center;gap:8px;background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:6px 6px 6px 16px;}
.nav-search i{color:var(--ink-2);font-size:13px;}
.nav-search input{border:0;background:transparent;outline:none;font-size:14px;color:var(--ink);width:170px;height:32px;}
.nav-search input::placeholder{color:#9AA08F;}
.nav-search button{border:0;border-radius:999px;background:var(--ink);color:var(--paper-on-ink);font-size:13px;font-weight:700;padding:8px 16px;cursor:pointer;transition:background var(--t) var(--ease),color var(--t) var(--ease);}
.nav-search button:hover{background:var(--volt);color:var(--ink);}
.top-links{display:flex;align-items:center;gap:18px;font-size:14px;font-weight:500;color:var(--ink-2);}
.top-links a:hover{color:var(--ink);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:999px;font-size:15px;font-weight:700;padding:13px 26px;border:1px solid transparent;cursor:pointer;transition:background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease),transform var(--t) var(--ease);}
.btn i{transition:transform var(--t) var(--ease);}
.btn:hover i{transform:translateX(4px);}
.btn--primary{background:var(--volt);color:var(--ink);}
.btn--primary:hover{background:var(--ink);color:var(--paper-on-ink);}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn--ghost:hover{background:var(--ink);color:var(--paper-on-ink);}
.btn--sm{padding:9px 18px;font-size:14px;}

/* ---------- 频道行 ---------- */
.channel-bar{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:35;}
.channel-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;}
.channel-nav{display:flex;align-items:stretch;gap:28px;height:52px;}
.channel-nav a{position:relative;display:inline-flex;align-items:center;font-size:15px;font-weight:600;color:var(--ink-2);}
.channel-nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--volt);transform:scaleX(0);transform-origin:left;transition:transform var(--t) var(--ease);}
.channel-nav a:hover{color:var(--ink);}
.channel-nav a:hover::after{transform:scaleX(.5);}
.channel-nav a.active{color:var(--ink);}
.channel-nav a.active::after{transform:scaleX(1);}
.channel-bar__hint{font-size:13px;color:var(--ink-2);}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border:1px solid var(--line);border-radius:6px;background:var(--surface);cursor:pointer;}
.nav-toggle span{display:block;height:2px;width:20px;margin:0 auto;background:var(--ink);transition:transform var(--t) var(--ease),opacity var(--t) var(--ease);}
body.drawer-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.drawer-open .nav-toggle span:nth-child(2){opacity:0;}
body.drawer-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-mask{position:fixed;inset:0;background:rgba(18,22,15,.45);opacity:0;visibility:hidden;transition:opacity var(--t) var(--ease),visibility var(--t) var(--ease);z-index:50;}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:290px;max-width:84vw;background:var(--paper);border-left:1px solid var(--line);padding:26px 22px;transform:translateX(102%);transition:transform var(--t) var(--ease);z-index:60;overflow-y:auto;}
body.drawer-open .mobile-drawer{transform:none;}
.mobile-drawer__title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink-2);text-transform:uppercase;margin-bottom:10px;}
.mobile-drawer a{display:block;padding:14px 0 14px 12px;font-size:16px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);position:relative;}
.mobile-drawer a.active{color:var(--ink);}
.mobile-drawer a.active::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--volt);}
.mobile-drawer .btn{width:100%;justify-content:center;margin-top:22px;}

/* ---------- 文章头部 ---------- */
.article-hero{background:var(--surface);border-bottom:1px solid var(--line);padding:34px 0 34px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin-bottom:22px;}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb .sep{color:#B9BDAF;}
.breadcrumb .current{color:var(--ink);font-weight:600;}
.article-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;letter-spacing:.02em;color:var(--ink);background:rgba(200,241,53,.35);border:1px solid var(--volt);border-radius:var(--radius-tag);padding:4px 10px;}
.article-title{font-size:clamp(30px,4.4vw,48px);font-weight:900;line-height:1.16;letter-spacing:-.02em;margin:16px 0 20px;max-width:920px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:14px;color:var(--ink-2);border-top:1px solid var(--line);padding-top:16px;}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-row i{font-size:13px;color:var(--ink-2);}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}

/* ---------- 布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;padding:clamp(36px,5vw,64px) 0 clamp(48px,7vw,88px);align-items:start;}
.article-main{min-width:0;}

/* ---------- 正文排版 ---------- */
.article-body{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:clamp(24px,4vw,56px);box-shadow:var(--shadow-1);}
.article-body p{font-size:17px;line-height:1.85;color:#23271D;margin-bottom:1.2em;}
.article-body p:last-child{margin-bottom:0;}
.article-body h2{font-size:clamp(22px,2.4vw,28px);font-weight:800;line-height:1.25;margin:40px 0 16px;padding-left:14px;position:relative;}
.article-body h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;background:var(--volt);border-radius:2px;}
.article-body h3{font-size:21px;font-weight:700;margin:30px 0 12px;}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:22px;}
.article-body ul li{position:relative;padding-left:14px;margin-bottom:8px;font-size:16.5px;line-height:1.8;}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--volt);}
.article-body ol{counter-reset:li;}
.article-body ol li{position:relative;padding-left:26px;margin-bottom:10px;font-size:16.5px;line-height:1.8;}
.article-body ol li::before{counter-increment:li;content:counter(li,decimal-leading-zero);position:absolute;left:0;top:0;font-family:'Barlow Condensed','Oswald',sans-serif;font-weight:700;color:var(--ink-2);}
.article-body blockquote{margin:28px 0;padding:18px 24px;background:var(--paper);border-left:3px solid var(--ink);border-radius:0 var(--radius-card) var(--radius-card) 0;color:var(--ink-2);font-size:17px;line-height:1.8;}
.article-body img{border-radius:var(--radius-card);border:1px solid var(--line);margin:22px 0;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px;padding:0;}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;font-variant-numeric:tabular-nums;}
.article-body thead th{background:var(--ink);color:var(--paper-on-ink);text-align:left;padding:12px 14px;font-weight:600;font-size:14px;letter-spacing:.02em;}
.article-body tbody td{padding:12px 14px;border-bottom:1px solid var(--line);color:#23271D;}
.article-body tbody tr:hover td{background:#FBFAF6;}
.article-body a{color:var(--ink);border-bottom:1px solid var(--volt);font-weight:500;}
.article-body a:hover{border-bottom-color:var(--ink);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}
.article-body strong{font-weight:700;color:var(--ink);}

/* ---------- 空态 ---------- */
.article-empty{background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);padding:72px 32px;text-align:center;min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;}
.article-empty i{font-size:30px;color:#C3C7B8;}
.article-empty h2{font-size:22px;font-weight:800;}
.article-empty p{font-size:15px;color:var(--ink-2);max-width:440px;line-height:1.8;}

/* ---------- 标签 / 上下篇 ---------- */
.article-block{margin-top:36px;}
.block-label{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--ink-2);margin-bottom:16px;}
.block-label::after{content:"";flex:1;height:1px;background:var(--line);}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag-list a{display:inline-flex;align-items:center;font-size:13px;font-weight:600;color:var(--ink-2);border:1px solid var(--line);border-radius:var(--radius-tag);padding:6px 12px;background:var(--surface);transition:border-color var(--t) var(--ease),color var(--t) var(--ease),background var(--t) var(--ease);}
.tag-list a:hover{border-color:var(--ink);color:var(--ink);background:var(--paper);}
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.post-nav a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px 22px;transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),transform var(--t) var(--ease);}
.post-nav a:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.post-nav .pn-dir{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--ink-2);display:block;margin-bottom:8px;}
.post-nav .pn-title{font-size:16px;font-weight:700;line-height:1.5;color:var(--ink);}
.post-nav a.next{text-align:right;}

/* ---------- 相关推荐 ---------- */
.rel-section{margin-top:48px;}
.rel-grid{row-gap:24px;}
.rel-card{display:flex;flex-direction:column;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),transform var(--t) var(--ease);}
.rel-card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-3px);}
.rel-card__media{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line);}
.rel-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 600ms var(--ease);}
.rel-card:hover .rel-card__media img{transform:scale(1.03);}
.rel-card__body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-card__cat{align-self:flex-start;font-size:12px;font-weight:700;color:var(--ink);background:rgba(200,241,53,.4);border:1px solid var(--volt);border-radius:var(--radius-tag);padding:3px 9px;}
.rel-card__title{font-size:17px;font-weight:700;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-card__desc{font-size:14px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-2);padding-top:12px;border-top:1px solid var(--line);}
.rel-card__meta i{font-size:12px;}

/* ---------- 侧栏 ---------- */
.sidebar-sticky{position:sticky;top:88px;display:flex;flex-direction:column;gap:22px;}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1);}
.side-card__title{font-size:15px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card__title::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--volt);}
.side-list li{border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:0;}
.side-list a{display:block;padding:12px 0;}
.side-list .side-title{font-size:14.5px;font-weight:600;line-height:1.55;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t) var(--ease);}
.side-list a:hover .side-title{color:#3E4A12;}
.side-list .side-time{display:block;margin-top:6px;font-size:12.5px;color:var(--ink-2);font-family:'Barlow Condensed','Oswald',system-ui,sans-serif;font-variant-numeric:tabular-nums;letter-spacing:.04em;}
.side-card--ink{background:var(--ink);border-color:rgba(246,244,238,.14);color:var(--paper-on-ink);box-shadow:none;}
.side-card--ink .side-card__title{color:var(--paper-on-ink);}
.side-card--ink p{font-size:14px;line-height:1.75;color:var(--paper-on-ink-2);margin:0 0 16px;}
.side-card--ink .btn{background:var(--volt);color:var(--ink);width:100%;justify-content:center;}
.side-card--ink .btn:hover{background:var(--paper-on-ink);color:var(--ink);}

/* ---------- CTA 条 ---------- */
.cta-bar{background:var(--ink);border-radius:var(--radius-card);padding:clamp(28px,4vw,44px);display:flex;align-items:center;justify-content:space-between;gap:28px;margin-bottom:clamp(48px,7vw,88px);}
.cta-bar h2{font-size:clamp(22px,2.6vw,28px);font-weight:800;color:var(--paper-on-ink);line-height:1.3;margin-bottom:8px;}
.cta-bar p{font-size:15px;color:var(--paper-on-ink-2);line-height:1.7;max-width:620px;}
.cta-bar .btn{flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--paper-on-ink);padding:clamp(48px,7vw,80px) 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand .brand{color:var(--paper-on-ink);font-size:17px;}
.footer-brand .brand__mark{background:var(--paper-on-ink);}
.footer-brand .brand__mark::after{background:var(--volt);}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--paper-on-ink-2);margin-top:16px;max-width:340px;}
.footer-title{font-size:15px;font-weight:700;color:var(--paper-on-ink);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--paper-on-ink-2);}
.footer-links a:hover{color:var(--volt);}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(246,244,238,.14);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--paper-on-ink-2);font-variant-numeric:tabular-nums;}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity 600ms var(--ease),transform 600ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:32px;}
}
@media (max-width:1024px){
  .channel-nav,.channel-bar__hint,.top-links,.nav-search{display:none;}
  .nav-toggle{display:flex;}
  .brand-bar__right{gap:12px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .sidebar-sticky{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .article-hero{padding:24px 0 26px;}
  .article-body{padding:24px 20px;}
  .article-body p,.article-body ul li,.article-body ol li{font-size:16px;}
  .post-nav{grid-template-columns:minmax(0,1fr);}
  .post-nav a.next{text-align:left;}
  .cta-bar{flex-direction:column;align-items:flex-start;}
  .cta-bar .btn{width:100%;justify-content:center;}
  .rel-grid{margin-left:-10px;margin-right:-10px;}
  .rel-grid>.cell{padding-left:10px;padding-right:10px;}
}
@media (max-width:520px){
  .brand{font-size:15px;}
  .brand__name{max-width:184px;overflow:hidden;text-overflow:ellipsis;}
  .article-title{font-size:26px;}
  .meta-row{gap:8px 14px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --ink:#12160F;
  --ink-2:#5C6155;
  --paper:#F6F4EE;
  --surface:#FFFFFF;
  --line:#E4E1D8;
  --volt:#C8F135;
  --volt-soft:rgba(200,241,53,.16);
  --volt-ink:#3E4A16;
  --flame:#FF6A2B;
  --paper-on-ink:#F6F4EE;
  --muted-on-ink:#A8AD9C;
  --radius-card:6px;
  --radius-input:4px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(18,22,15,.05);
  --shadow-2:0 12px 32px rgba(18,22,15,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:320ms;
  --container:1200px;
  --narrow:760px;
  --font-cn:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-num:'Barlow Condensed','Oswald','Inter',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background-color var(--dur) var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:clamp(56px,8vw,112px) 0}
.section--tight{padding:clamp(40px,5vw,72px) 0}
.section--paper{background:var(--paper)}
.section--surface{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:clamp(28px,4vw,48px)}
.section-head h2{margin-top:14px}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;max-width:66ch}
.eyebrow{
  display:inline-block;font-size:14px;font-weight:600;letter-spacing:.02em;
  color:var(--ink);border:1px solid var(--volt);background:var(--volt-soft);
  border-radius:3px;padding:3px 12px;
}
h1{font-size:clamp(34px,5.2vw,64px);font-weight:900;line-height:1.08;letter-spacing:-.02em}
h2{font-size:clamp(26px,3.2vw,40px);font-weight:800;line-height:1.15;letter-spacing:-.01em}
h3{font-size:20px;font-weight:700;line-height:1.35}
p{font-size:16px}
.lead{font-size:18px;line-height:1.75;color:var(--ink-2);max-width:62ch}
.muted{color:var(--ink-2)}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- Header ---------- */
.site-header{position:relative;z-index:50}
.brand-row{background:var(--surface);border-bottom:1px solid var(--line)}
.brand-row__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px}
.brand__mark{position:relative;width:22px;height:22px;border-radius:3px;background:var(--volt);box-shadow:inset 0 0 0 1px rgba(18,22,15,.16);flex:0 0 22px}
.brand__mark::after{content:"";position:absolute;inset:7px;background:var(--ink);border-radius:1px}
.brand__name{font-weight:900;font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.brand-row__tools{display:flex;align-items:center;gap:14px}
.site-search{
  display:flex;align-items:center;gap:6px;height:40px;padding:0 6px 0 16px;
  border:1px solid var(--line);border-radius:var(--radius-pill);background:var(--surface);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-search:focus-within{border-color:var(--ink);box-shadow:0 0 0 2px var(--volt)}
.site-search input{width:190px;border:0;outline:0;background:transparent;font-size:14px}
.site-search input::placeholder{color:#9AA091}
.site-search button{
  width:30px;height:30px;border:0;border-radius:50%;background:transparent;cursor:pointer;
  color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;
}
.site-search button:hover{background:var(--volt);color:var(--ink)}
.ghost-link{font-size:14px;font-weight:600;color:var(--ink-2);border-bottom:1px solid transparent}
.ghost-link:hover{color:var(--ink);border-bottom-color:var(--volt)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;gap:6px;
  width:42px;height:40px;border:1px solid var(--line);border-radius:var(--radius-input);
  background:var(--surface);cursor:pointer;color:var(--ink);
}
.nav-toggle:hover{border-color:var(--ink)}
.channel-row{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:45;transition:box-shadow var(--dur) var(--ease)}
.channel-row.is-stuck{box-shadow:0 8px 24px rgba(18,22,15,.07)}
.channel-nav{display:flex;align-items:center;gap:28px;height:52px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{position:relative;font-size:15px;font-weight:600;color:var(--ink-2);line-height:52px;white-space:nowrap;padding:0 2px}
.channel-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--volt);
  transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease);
}
.channel-nav a:hover{color:var(--ink)}
.channel-nav a:hover::after{transform:scaleX(1)}
.channel-nav a.active{color:var(--ink)}
.channel-nav a.active::after{transform:scaleX(1)}

/* ---------- Drawer ---------- */
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(320px,86vw);background:var(--paper);
  border-left:1px solid var(--line);transform:translateX(102%);
  transition:transform var(--dur) var(--ease);z-index:90;padding:24px 20px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius-input);cursor:pointer;color:var(--ink)}
.drawer-close:hover{border-color:var(--ink)}
.drawer-nav a{
  position:relative;display:block;padding:15px 0 15px 14px;font-size:16px;font-weight:600;
  color:var(--ink-2);border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--ink)}
.drawer-nav a.active::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:20px;background:var(--volt);border-radius:2px}
.drawer-nav a:hover{color:var(--ink)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,22,15,.45);opacity:0;pointer-events:none;
  transition:opacity var(--dur) var(--ease);z-index:80;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;border-radius:var(--radius-pill);
  border:1px solid transparent;font-weight:700;font-size:15px;cursor:pointer;
  padding:14px 28px;transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.btn i{transition:transform var(--dur) var(--ease)}
.btn:hover i{transform:translateX(4px)}
.btn--primary{background:var(--volt);color:var(--ink)}
.btn--primary:hover{background:var(--ink);color:var(--paper-on-ink)}
.btn--ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:var(--paper-on-ink)}
.btn--light{background:transparent;border-color:rgba(246,244,238,.4);color:var(--paper-on-ink)}
.btn--light:hover{background:var(--volt);border-color:var(--volt);color:var(--ink)}
.btn--sm{padding:10px 20px;font-size:14px}
.btn--block{width:100%;justify-content:center}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--volt);outline-offset:2px;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-2);margin-bottom:22px}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb span.sep{color:#C2C0B6}
.breadcrumb .current{color:var(--ink);font-weight:600}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:clamp(36px,5.5vw,68px) 0 clamp(40px,6vw,76px);
  background-color:var(--paper);
  background-image:repeating-linear-gradient(135deg,rgba(18,22,15,.035) 0 1px,transparent 1px 12px);
  border-bottom:1px solid var(--line);
}
.page-hero__inner{
  display:grid;grid-template-columns:1.35fr .65fr;gap:clamp(24px,4vw,56px);
  align-items:center;min-height:280px;
}
.page-hero h1{margin-top:16px}
.page-hero .lead{margin-top:18px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.page-hero__media{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-1);background:var(--surface);
}
.page-hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- Stat strip ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  margin-top:clamp(32px,4.4vw,52px);border-top:1px solid var(--line);padding-top:26px;
}
.stat-strip__item{padding:0 22px;border-left:1px solid var(--line)}
.stat-strip__item:first-child{border-left:0;padding-left:0}
.stat-strip__value{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:clamp(30px,4vw,46px);font-weight:800;line-height:1;display:flex;align-items:baseline;gap:2px;
}
.stat-strip__value em{font-style:normal;font-size:.6em;color:var(--ink-2)}
.stat-strip__label{margin-top:10px;font-size:13px;color:var(--ink-2);letter-spacing:.02em}

/* ---------- Cards ---------- */
.stagger-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start}
.stagger-grid > .card:nth-child(2n){margin-top:44px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.card__media{
  aspect-ratio:16/9;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);margin-bottom:20px;
}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform 600ms var(--ease)}
.card:hover .card__media img{transform:scale(1.02)}
.card h3{margin-bottom:12px}
.card p{font-size:15px;line-height:1.75;color:var(--ink-2)}
.card__meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:20px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-2);
}
.card__meta .go{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--ink)}
.card__meta .go:hover{color:var(--ink)}
.card__meta .go i{transition:transform var(--dur) var(--ease)}
.card:hover .card__meta .go i{transform:translateX(4px)}
.tag{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.02em;
  padding:3px 10px;border-radius:3px;background:var(--volt-soft);color:var(--volt-ink);
  border:1px solid rgba(200,241,53,.7);
}
.tag--flame{background:rgba(255,106,43,.10);color:#B03D0F;border-color:rgba(255,106,43,.35)}
.tag--quiet{background:var(--paper);color:var(--ink-2);border-color:var(--line)}

/* ---------- Numbered list ---------- */
.numbered-list{border-top:1px solid var(--line)}
.numbered-row{
  display:grid;grid-template-columns:88px 1fr 1.25fr;gap:clamp(16px,3vw,40px);
  padding:28px 0;border-bottom:1px solid var(--line);align-items:start;
  transition:background-color var(--dur) var(--ease);
}
.numbered-row:hover{background:rgba(255,255,255,.7)}
.numbered-row__index{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:34px;font-weight:800;line-height:1;color:var(--ink);opacity:.32;
  transition:opacity var(--dur) var(--ease),color var(--dur) var(--ease);
}
.numbered-row:hover .numbered-row__index{opacity:1;color:var(--volt-ink)}
.numbered-row h3{font-size:19px}
.numbered-row p{font-size:15px;color:var(--ink-2);line-height:1.75}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.step{position:relative;padding-top:28px;border-top:2px solid var(--line);transition:border-color var(--dur) var(--ease)}
.step::before{
  content:"";position:absolute;top:-5px;left:0;width:8px;height:8px;border-radius:50%;
  background:var(--volt);border:1px solid var(--ink);
}
.step:hover{border-top-color:var(--ink)}
.step__num{font-family:var(--font-num);font-size:26px;font-weight:800;color:var(--ink);opacity:.4;line-height:1}
.step h3{margin:12px 0 10px;font-size:18px}
.step p{font-size:15px;color:var(--ink-2);line-height:1.75}

/* ---------- Dark section ---------- */
.dark-section{background:var(--ink);color:var(--paper-on-ink);padding:clamp(64px,9vw,120px) 0}
.dark-section .eyebrow{color:var(--paper-on-ink);border-color:rgba(200,241,53,.55);background:rgba(200,241,53,.12)}
.dark-head{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(20px,4vw,56px);align-items:end;margin-bottom:clamp(32px,5vw,56px)}
.dark-head p{color:var(--muted-on-ink);font-size:16px;max-width:52ch}
.dark-stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(246,244,238,.14);padding-top:34px}
.dark-stats__item{padding:0 24px;border-left:1px solid rgba(246,244,238,.14)}
.dark-stats__item:first-child{border-left:0;padding-left:0}
.dark-stats__value{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:clamp(38px,5.6vw,68px);font-weight:800;line-height:1;display:flex;align-items:baseline;gap:4px}
.dark-stats__value em{font-style:normal;font-size:.55em;color:var(--muted-on-ink)}
.dark-stats__label{margin-top:12px;font-size:14px;color:var(--muted-on-ink)}
.dark-stats__dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--volt);margin-right:8px;vertical-align:middle}

/* ---------- Rank list ---------- */
.rank-list{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.rank-head{
  display:grid;grid-template-columns:120px 1fr 160px 100px;gap:16px;
  padding:14px 22px;background:var(--paper);border-bottom:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--ink-2);letter-spacing:.02em;
}
.rank-row{
  display:grid;grid-template-columns:120px 1fr 160px 100px;gap:16px;align-items:center;
  padding:18px 22px;border-bottom:1px solid var(--line);
  transition:background-color var(--dur) var(--ease);
}
.rank-row:last-child{border-bottom:0}
.rank-row:hover{background:#FBFAF5}
.rank-row__time{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:18px;font-weight:700}
.rank-row__match{font-size:16px;font-weight:700}
.rank-row__match span{display:block;font-size:13px;font-weight:500;color:var(--ink-2);margin-top:4px}
.rank-row__venue{font-size:14px;color:var(--ink-2)}
.rank-row__status{font-size:13px;font-weight:600;text-align:right}

/* ---------- FAQ ---------- */
.accordion{border-top:1px solid var(--line);margin:0;background:transparent}
.accordion-item{border-bottom:1px solid var(--line);background:transparent}
.accordion-title{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px 22px 18px;font-size:18px;font-weight:700;color:var(--ink);
  border:0;background:transparent;
}
.accordion-title::before{
  content:"";position:absolute;left:0;top:50%;width:4px;height:22px;border-radius:2px;
  background:var(--volt);transform:translateY(-50%) scaleY(0);transform-origin:center;
  transition:transform var(--dur) var(--ease);
}
.accordion-title::after{
  content:"";flex:0 0 16px;width:16px;height:16px;
  background:
    linear-gradient(var(--ink),var(--ink)) center/16px 1.5px no-repeat,
    linear-gradient(var(--ink),var(--ink)) center/1.5px 16px no-repeat;
  transition:transform var(--dur) var(--ease);
}
.accordion-item.is-active .accordion-title::before{transform:translateY(-50%) scaleY(1)}
.accordion-item.is-active .accordion-title::after{transform:rotate(45deg)}
.accordion-title:hover{color:var(--ink)}
.accordion-content{
  padding:0 4px 24px 18px;background:transparent;color:var(--ink-2);
  font-size:16px;line-height:1.8;border:0;
}
.accordion-item .accordion-content{display:none}
.accordion-item.is-active .accordion-content{display:block}
.faq-layout{display:grid;grid-template-columns:.8fr 1.6fr;gap:clamp(24px,4vw,56px);align-items:start}

/* ---------- CTA + Form ---------- */
.cta-band{
  background:var(--ink);color:var(--paper-on-ink);border-radius:var(--radius-card);
  padding:clamp(28px,4vw,48px);display:flex;align-items:center;justify-content:space-between;
  gap:26px;flex-wrap:wrap;
}
.cta-band h2{color:var(--paper-on-ink);font-size:clamp(22px,2.6vw,30px)}
.cta-band p{color:var(--muted-on-ink);font-size:15px;margin-top:10px;max-width:46ch}
.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,48px);align-items:start;margin-top:clamp(32px,4vw,52px)}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:clamp(24px,3.4vw,36px)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-input);
  background:var(--surface);padding:0 14px;height:48px;outline:0;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.field textarea{height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--ink);box-shadow:0 0 0 2px var(--volt)}
.field .hint{font-size:13px;color:var(--ink-2);margin-top:8px}
.form-note{font-size:13px;color:var(--ink-2);margin-top:14px}
.form-feedback{display:none;margin-top:14px;font-size:14px;font-weight:600;color:var(--volt-ink);background:var(--volt-soft);border:1px solid rgba(200,241,53,.7);border-radius:var(--radius-input);padding:10px 14px}
.form-feedback.is-visible{display:block}
.contact-side .card{margin-bottom:20px}
.contact-side .card:last-child{margin-bottom:0}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:var(--muted-on-ink);margin-top:clamp(56px,8vw,104px)}
.site-footer .container{padding-top:clamp(48px,6vw,80px)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px}
.site-footer .brand__name{color:var(--paper-on-ink)}
.site-footer .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:34ch}
.footer-title{color:var(--paper-on-ink);font-size:15px;font-weight:700;margin:0 0 16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted-on-ink);border-bottom:1px solid transparent;width:fit-content}
.footer-links a:hover{color:var(--volt);border-bottom-color:var(--volt)}
.footer-bottom{
  border-top:1px solid rgba(246,244,238,.14);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity 600ms var(--ease),transform 600ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .channel-row{display:none}
  .nav-toggle{display:inline-flex}
  .page-hero__inner{grid-template-columns:1fr;min-height:0}
  .page-hero__media img{aspect-ratio:16/9}
  .dark-head{grid-template-columns:1fr;align-items:start}
  .faq-layout{grid-template-columns:1fr}
  .contact-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .stagger-grid{grid-template-columns:1fr}
  .stagger-grid > .card:nth-child(2n){margin-top:0}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .numbered-row{grid-template-columns:64px 1fr;gap:16px}
  .numbered-row p{grid-column:2}
  .rank-head{display:none}
  .rank-row{grid-template-columns:1fr;gap:8px;padding:18px}
  .rank-row__status{text-align:left}
}
@media (max-width:767px){
  .site-search{display:none}
  .ghost-link{display:none}
  .stat-strip{grid-template-columns:1fr 1fr;gap:24px 0;padding-top:22px}
  .stat-strip__item{padding:0 16px}
  .stat-strip__item:nth-child(3){border-left:0;padding-left:0}
  .dark-stats{grid-template-columns:1fr 1fr;gap:26px 0}
  .dark-stats__item{padding:0 16px}
  .dark-stats__item:nth-child(3){border-left:0;padding-left:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand__name{font-size:15px}
  .brand-row__inner{height:58px}
  .btn{padding:12px 20px;font-size:14px}
  .hero-actions .btn{width:100%;justify-content:center}
  .cta-band .btn{width:100%;justify-content:center}
  .steps{grid-template-columns:1fr}
  .accordion-title{font-size:16px;padding-left:14px}
  .accordion-content{padding-left:14px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#12160F;
  --ink-2:#5C6155;
  --paper:#F6F4EE;
  --surface:#FFFFFF;
  --line:#E4E1D8;
  --volt:#C8F135;
  --flame:#FF6A2B;
  --paper-on-ink:#F6F4EE;
  --ink-2-on-ink:#A8AD9C;
  --radius-card:6px;
  --radius-input:4px;
  --radius-tag:3px;
  --shadow-1:0 1px 2px rgba(18,22,15,.05);
  --shadow-2:0 12px 32px rgba(18,22,15,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --section-y:clamp(56px,8vw,112px);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-card);}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--volt);outline-offset:2px;border-radius:2px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-family:'Barlow Condensed','Oswald','Inter',system-ui,sans-serif;font-variant-numeric:tabular-nums;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .32s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(18,22,15,.07);}
.header-brand-row{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:64px;transition:height .32s var(--ease);
}
.site-header.is-scrolled .header-brand-row{height:50px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand__mark{
  width:22px;height:22px;border-radius:3px;flex:none;
  background:var(--ink);position:relative;
}
.brand__mark::after{
  content:'';position:absolute;left:5px;top:5px;width:12px;height:12px;
  background:var(--volt);border-radius:1px;
}
.brand__name{
  font-size:19px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;
}
.header-tools{display:flex;align-items:center;gap:22px;}
.text-link{
  font-size:14px;font-weight:600;color:var(--ink-2);
  border-bottom:1px solid transparent;transition:color .3s var(--ease),border-color .3s var(--ease);
}
.text-link:hover{color:var(--ink);border-bottom-color:var(--volt);}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  border-radius:999px;font-weight:700;border:1px solid transparent;
  cursor:pointer;transition:background-color .32s var(--ease),color .32s var(--ease),border-color .32s var(--ease),transform .32s var(--ease);
}
.btn--primary{background:var(--volt);color:var(--ink);padding:14px 28px;font-size:15px;}
.btn--primary:hover{background:var(--ink);color:var(--paper-on-ink);}
.btn--primary .btn__arrow{transition:transform .32s var(--ease);}
.btn--primary:hover .btn__arrow{transform:translateX(4px);}
.btn--ghost{background:transparent;border-color:var(--ink);color:var(--ink);padding:13px 26px;font-size:15px;}
.btn--ghost:hover{background:var(--ink);color:var(--paper-on-ink);}
.btn--sm{padding:9px 20px;font-size:14px;}
.burger{
  display:none;width:42px;height:38px;border:1px solid var(--line);border-radius:var(--radius-input);
  background:var(--surface);align-items:center;justify-content:center;cursor:pointer;flex-direction:column;gap:4px;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease);}
.burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.channel-nav{
  display:flex;align-items:center;gap:28px;
  height:52px;border-top:1px solid var(--line);
  overflow-x:auto;scrollbar-width:none;
}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-nav a{
  position:relative;flex:none;font-size:15px;font-weight:600;color:var(--ink-2);
  padding:4px 0;transition:color .3s var(--ease);
}
.channel-nav a::after{
  content:'';position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--volt);transform:scaleX(0);transform-origin:left;
  transition:transform .32s var(--ease);
}
.channel-nav a:hover{color:var(--ink);}
.channel-nav a:hover::after,.channel-nav a.active::after{transform:scaleX(1);}
.channel-nav a.active{color:var(--ink);}

.mobile-drawer{
  position:fixed;inset:0 0 0 auto;width:min(86vw,340px);
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .36s var(--ease);
  z-index:90;padding:84px 22px 32px;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer nav{display:flex;flex-direction:column;}
.mobile-drawer nav a{
  position:relative;padding:15px 0 15px 14px;font-size:16px;font-weight:600;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-drawer nav a.active{color:var(--ink);}
.mobile-drawer nav a.active::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;background:var(--volt);border-radius:1px;
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,22,15,.42);
  opacity:0;visibility:hidden;transition:opacity .32s var(--ease),visibility .32s var(--ease);z-index:85;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ============ 面包屑 ============ */
.crumb{font-size:13px;color:var(--ink-2-on-ink);display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumb a{color:var(--ink-2-on-ink);transition:color .3s var(--ease);}
.crumb a:hover{color:var(--volt);}
.crumb .sep{opacity:.55;}
.crumb .current{color:var(--paper-on-ink);font-weight:600;}
.crumb--light{color:var(--ink-2);}
.crumb--light a{color:var(--ink-2);}
.crumb--light a:hover{color:var(--ink);}
.crumb--light .current{color:var(--ink);}

/* ============ 条带 Hero ============ */
.page-hero{
  position:relative;background:var(--ink);overflow:hidden;
  padding:34px 0 38px;
}
.page-hero__bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.30;
}
.page-hero__shade{position:absolute;inset:0;background:rgba(18,22,15,.62);}
.page-hero__inner{position:relative;z-index:2;}
.page-hero__tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border:1px solid var(--volt);border-radius:var(--radius-tag);
  color:var(--volt);font-size:13px;font-weight:600;letter-spacing:.04em;
}
.page-hero h1{
  margin-top:16px;
  font-size:clamp(30px,4.4vw,48px);
  font-weight:900;line-height:1.1;letter-spacing:-.02em;
  color:var(--paper-on-ink);max-width:20em;
}
.page-hero__sub{
  margin-top:14px;max-width:56em;font-size:16px;line-height:1.8;color:var(--ink-2-on-ink);
}
.page-hero__meta{
  margin-top:22px;display:flex;flex-wrap:wrap;gap:10px 26px;
  font-size:13px;color:var(--ink-2-on-ink);border-top:1px solid rgba(246,244,238,.14);padding-top:16px;
}
.page-hero__meta b{color:var(--paper-on-ink);font-family:'Barlow Condensed',sans-serif;font-size:17px;letter-spacing:.02em;}

/* ============ 通用板块 ============ */
.section{padding:var(--section-y) 0;}
.section--tight{padding:clamp(40px,5vw,68px) 0;}
.section-head{margin-bottom:clamp(26px,3.4vw,44px);}
.section-head__row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.section-head h2{
  font-size:clamp(24px,3vw,36px);font-weight:800;line-height:1.15;letter-spacing:-.01em;
}
.section-head p{margin-top:10px;max-width:60em;color:var(--ink-2);font-size:15px;line-height:1.8;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--flame);margin-bottom:12px;font-family:'Barlow Condensed',sans-serif;
}
.tag{
  display:inline-block;padding:3px 9px;border-radius:var(--radius-tag);
  background:#EEF6D6;color:#4A5A08;font-size:13px;font-weight:600;letter-spacing:.02em;
}
.tag--flame{background:#FFEDE4;color:#A83C10;}
.tag--ink{background:#E9E7E0;color:var(--ink);}

.main-split{margin-left:-12px;margin-right:-12px;}
.main-split > .cell{padding-left:12px;padding-right:12px;}

/* ============ 左侧竖排条目列表 ============ */
.feed-list{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:8px 24px;
}
.feed-item{
  display:grid;grid-template-columns:52px 132px minmax(0,1fr);gap:20px;
  padding:24px 0;border-bottom:1px solid var(--line);align-items:start;
  transition:background-color .32s var(--ease);
}
.feed-item:last-child{border-bottom:0;}
.feed-item:hover{background:#FBFAF6;}
.feed-item__no{
  font-family:'Barlow Condensed',sans-serif;font-size:30px;font-weight:800;line-height:1;
  color:var(--ink);opacity:.22;letter-spacing:.02em;
}
.feed-item:hover .feed-item__no{opacity:.9;color:var(--flame);}
.feed-item__thumb{
  aspect-ratio:16/10;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-card);
}
.feed-item__thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .6s var(--ease);}
.feed-item:hover .feed-item__thumb img{transform:scale(1.04);}
.feed-item__body h3{
  font-size:18px;font-weight:700;line-height:1.5;margin-top:8px;
}
.feed-item__body h3 a{
  background-image:linear-gradient(var(--ink),var(--ink));
  background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;
  transition:background-size .32s var(--ease);
}
.feed-item:hover .feed-item__body h3 a{background-size:100% 1px;}
.feed-item__body p{margin-top:8px;font-size:15px;line-height:1.7;color:var(--ink-2);}
.feed-item__meta{
  margin-top:12px;display:flex;flex-wrap:wrap;gap:6px 18px;font-size:13px;color:var(--ink-2);
  font-variant-numeric:tabular-nums;
}
.feed-item__meta .dot{color:var(--line);}

/* ============ 右侧精选 ============ */
.side-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:132px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
  transition:border-color .32s var(--ease),box-shadow .32s var(--ease),transform .32s var(--ease);
}
.side-card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-3px);}
.side-card--feature{padding:0;overflow:hidden;}
.side-card--feature img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0;}
.side-card__body{padding:22px;}
.side-card h3{font-size:19px;font-weight:700;line-height:1.5;margin-top:10px;}
.side-card p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--ink-2);}
.side-card .btn{margin-top:18px;}
.side-card__label{
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--flame);
  font-family:'Barlow Condensed',sans-serif;text-transform:uppercase;
}
.mini-list{margin-top:14px;}
.mini-list li{
  display:flex;justify-content:space-between;gap:14px;align-items:baseline;
  padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;
}
.mini-list li:last-child{border-bottom:0;padding-bottom:0;}
.mini-list a{color:var(--ink);font-weight:600;line-height:1.6;}
.mini-list a:hover{color:var(--flame);}
.mini-list time{color:var(--ink-2);font-size:13px;white-space:nowrap;font-variant-numeric:tabular-nums;}

/* ============ 前瞻维度（编号水平列表条） ============ */
.dim-list{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;
}
.dim-row{
  display:grid;grid-template-columns:88px minmax(0,1fr) minmax(0,1.4fr);gap:24px;
  align-items:center;padding:26px 28px;border-bottom:1px solid var(--line);
  transition:background-color .32s var(--ease);
}
.dim-row:last-child{border-bottom:0;}
.dim-row:hover{background:#FBFAF6;}
.dim-row__no{
  font-family:'Barlow Condensed',sans-serif;font-size:38px;font-weight:800;line-height:1;
  color:var(--ink);opacity:.18;
}
.dim-row:hover .dim-row__no{opacity:1;color:var(--volt);}
.dim-row h3{font-size:20px;font-weight:700;line-height:1.4;}
.dim-row p{font-size:15px;line-height:1.75;color:var(--ink-2);}

/* ============ 深色数据带 ============ */
.dark-band{
  background:var(--ink);color:var(--paper-on-ink);
  padding:clamp(56px,8vw,104px) 0;
}
.dark-band__head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;flex-wrap:wrap;margin-bottom:clamp(32px,4vw,52px);}
.dark-band h2{font-size:clamp(24px,3vw,36px);font-weight:800;line-height:1.15;color:var(--paper-on-ink);}
.dark-band__head p{max-width:34em;font-size:15px;line-height:1.8;color:var(--ink-2-on-ink);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{
  padding:0 26px;border-left:1px solid rgba(246,244,238,.14);
}
.stat:first-child{border-left:0;padding-left:0;}
.stat__value{
  font-family:'Barlow Condensed',sans-serif;font-weight:800;
  font-size:clamp(40px,5.4vw,68px);line-height:1;letter-spacing:.01em;
  color:var(--paper-on-ink);display:flex;align-items:baseline;gap:6px;
}
.stat__value i{font-style:normal;color:var(--volt);font-size:.42em;font-weight:700;}
.stat__label{margin-top:12px;font-size:14px;color:var(--ink-2-on-ink);line-height:1.7;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
ul.accordion.faq-acc{background:transparent;border:0;margin:0;list-style:none;}
.faq-acc .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--line);}
.faq-acc .accordion-title{
  border:0;background:transparent;padding:22px 52px 22px 20px;
  font-size:17px;font-weight:700;color:var(--ink);line-height:1.6;
  position:relative;transition:color .32s var(--ease);
}
.faq-acc .accordion-title::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:0;background:var(--volt);border-radius:2px;
  transition:height .32s var(--ease);
}
.faq-acc .accordion-item.is-active .accordion-title::before{height:56%;}
.faq-acc .accordion-title::after{content:none;}
.faq-acc .accordion-title:hover{color:var(--ink);}
.acc-ico{
  position:absolute;right:18px;top:50%;width:16px;height:16px;transform:translateY(-50%);
}
.acc-ico::before,.acc-ico::after{
  content:'';position:absolute;left:50%;top:50%;background:var(--ink);
  transition:transform .32s var(--ease),background-color .32s var(--ease);
}
.acc-ico::before{width:14px;height:1.6px;transform:translate(-50%,-50%);}
.acc-ico::after{width:1.6px;height:14px;transform:translate(-50%,-50%);}
.accordion-item.is-active .acc-ico::after{transform:translate(-50%,-50%) rotate(90deg) scaleX(0);}
.faq-acc .accordion-content{
  padding:0 52px 24px 20px;border:0;background:transparent;
  font-size:16px;line-height:1.85;color:var(--ink-2);
}

/* ============ CTA 与表单 ============ */
.cta-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:clamp(28px,4vw,48px);box-shadow:var(--shadow-1);
}
.cta-card__grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:clamp(28px,4vw,56px);align-items:start;}
.cta-card h2{font-size:clamp(24px,2.8vw,32px);font-weight:800;line-height:1.2;}
.cta-card__lead{margin-top:14px;font-size:15px;line-height:1.85;color:var(--ink-2);}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);line-height:1.7;}
.cta-points li::before{
  content:'';flex:none;width:14px;height:14px;margin-top:7px;border-radius:2px;
  background:var(--volt);
  clip-path:polygon(14% 46%,0 62%,38% 100%,100% 20%,86% 6%,36% 72%);
}
.form-field{margin-bottom:18px;}
.form-field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.form-field input,.form-field textarea,.form-field select{
  width:100%;min-height:48px;padding:12px 14px;border:1px solid var(--line);
  border-radius:var(--radius-input);background:var(--surface);
  transition:border-color .32s var(--ease),box-shadow .32s var(--ease);
}
.form-field textarea{min-height:110px;resize:vertical;line-height:1.7;}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{
  outline:none;border-color:var(--volt);box-shadow:0 0 0 2px rgba(200,241,53,.45);
}
.form-hint{font-size:13px;color:var(--ink-2);margin-top:6px;}
.form-msg{
  margin-top:14px;font-size:13px;color:var(--flame);min-height:20px;
}
.form-msg.is-ok{color:#3F6B12;}
.form-submit{width:100%;justify-content:center;margin-top:6px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--paper-on-ink);padding:clamp(48px,6vw,80px) 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:clamp(28px,4vw,48px);}
.footer-brand .brand__name{color:var(--paper-on-ink);font-size:18px;}
.footer-brand .brand__mark{background:var(--paper-on-ink);}
.footer-brand .brand__mark::after{background:var(--ink);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--ink-2-on-ink);max-width:26em;}
.footer-title{font-size:15px;font-weight:700;color:var(--paper-on-ink);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--ink-2-on-ink);transition:color .3s var(--ease);}
.footer-links a:hover{color:var(--volt);}
.footer-bottom{
  margin-top:clamp(32px,4vw,52px);padding-top:22px;border-top:1px solid rgba(246,244,238,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-2-on-ink);
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(18px);}
.reveal.is-in{opacity:1;transform:none;transition:opacity .6s var(--ease),transform .6s var(--ease);}
@media (prefers-reduced-motion: reduce){
  .reveal,.reveal.is-in{opacity:1;transform:none;transition:none;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .channel-nav{display:none;}
  .burger{display:flex;}
  .header-tools .text-link{display:none;}
  .side-stack{position:static;}
  .cta-card__grid{grid-template-columns:1fr;}
  .dim-row{grid-template-columns:64px minmax(0,1fr);gap:8px 18px;}
  .dim-row p{grid-column:1 / -1;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .feed-list{padding:4px 18px;}
  .feed-item{grid-template-columns:38px minmax(0,1fr);gap:14px;}
  .feed-item__thumb{grid-column:1 / -1;aspect-ratio:16/9;}
  .feed-item__no{font-size:24px;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:28px 0;}
  .stat{padding:0 18px;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .dark-band__head{align-items:flex-start;}
}
@media (max-width:520px){
  .brand__name{font-size:16px;}
  .page-hero h1{font-size:28px;}
  .page-hero__meta{gap:8px 18px;}
  .dim-row{padding:20px 18px;}
  .dim-row h3{font-size:17px;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-bottom:20px;}
}

/* roulang page: category3 */
:root{
  --ink:#12160F;
  --ink-2:#5C6155;
  --ink-3:#A8AD9C;
  --paper:#F6F4EE;
  --paper-2:#EFEDE5;
  --surface:#FFFFFF;
  --line:#E4E1D8;
  --volt:#C8F135;
  --flame:#FF6A2B;
  --radius:6px;
  --radius-sm:4px;
  --pill:999px;
  --shadow-1:0 1px 2px rgba(18,22,15,.05);
  --shadow-2:0 12px 32px rgba(18,22,15,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --section:clamp(56px,8vw,112px);
  --font-cn:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-num:'Barlow Condensed','Oswald','Inter',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body,button,input,select,textarea{font-family:var(--font-cn)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
img{display:block;max-width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--line)}
a{color:var(--ink);text-decoration:none;transition:color .32s var(--ease),border-color .32s var(--ease),background-color .32s var(--ease)}
a:hover{color:var(--ink)}
button{cursor:pointer;border:0;background:none;color:inherit}
input,textarea{color:var(--ink)}
:focus-visible{outline:2px solid var(--volt);outline-offset:2px}
::selection{background:var(--volt);color:var(--ink)}
.container{width:100%;max-width:1200px;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}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--pill);
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;
  transition:background-color .32s var(--ease),color .32s var(--ease),border-color .32s var(--ease),transform .32s var(--ease);
}
.btn .arrow{transition:transform .32s var(--ease);font-family:var(--font-num);font-size:17px;line-height:1}
.btn:hover .arrow{transform:translateX(4px)}
.btn--primary{background:var(--volt);color:var(--ink);border-color:var(--volt)}
.btn--primary:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:var(--paper)}
.btn--sm{padding:10px 18px;font-size:14px}
.btn--block{width:100%}
.link-quiet{font-size:14px;font-weight:600;color:var(--ink-2);border-bottom:1px solid transparent}
.link-quiet:hover{color:var(--ink);border-bottom-color:var(--volt)}

/* 头部 */
.site-header{position:relative;z-index:40;background:var(--surface)}
.topbar{border-bottom:1px solid var(--line)}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand__mark{position:relative;display:inline-block;width:18px;height:18px;border:1px solid var(--ink);border-radius:3px;background:var(--volt)}
.brand__mark::after{content:'';position:absolute;inset:4px;background:var(--ink);border-radius:1px}
.brand__name{font-size:19px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.topbar__tools{display:flex;align-items:center;gap:18px}
.search{display:flex;align-items:center;height:40px;border:1px solid var(--line);border-radius:var(--pill);background:var(--paper);overflow:hidden}
.search input{width:190px;height:100%;border:0;background:transparent;padding:0 16px;font-size:14px;outline:none}
.search input::placeholder{color:var(--ink-3)}
.search button{height:100%;padding:0 18px;background:var(--ink);color:var(--paper);font-size:14px;font-weight:600;transition:background-color .32s var(--ease),color .32s var(--ease)}
.search button:hover{background:var(--volt);color:var(--ink)}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--radius-sm);padding:11px 10px;flex-direction:column;justify-content:space-between}
.menu-toggle span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px}

.channel-nav{
  position:sticky;top:0;z-index:35;
  display:flex;align-items:center;gap:28px;
  height:52px;background:var(--surface);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  overflow-x:auto;overflow-y:hidden;
  scrollbar-width:none;
  transition:box-shadow .32s var(--ease);
}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav.is-stuck{box-shadow:0 8px 24px rgba(18,22,15,.07)}
.channel-nav a{
  position:relative;display:inline-flex;align-items:center;height:52px;
  font-size:15px;font-weight:600;color:var(--ink-2);white-space:nowrap;
}
.channel-nav a::after{
  content:'';position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--volt);
  transform:scaleX(0);transform-origin:left;transition:transform .32s var(--ease);
}
.channel-nav a:hover{color:var(--ink)}
.channel-nav a:hover::after,.channel-nav a.active::after{transform:scaleX(1)}
.channel-nav a.active{color:var(--ink)}

/* 抽屉导航 */
.off-canvas{background:var(--paper);border-left:1px solid var(--line)}
.drawer{padding:22px 20px 32px}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer__close{width:36px;height:36px;border:1px solid var(--line);border-radius:var(--radius-sm);font-size:20px;line-height:1;color:var(--ink-2)}
.drawer__close:hover{border-color:var(--ink);color:var(--ink)}
.drawer__nav{display:flex;flex-direction:column;margin:14px 0 22px}
.drawer__nav a{
  padding:15px 14px;font-size:15px;font-weight:600;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer__nav a:hover{color:var(--ink)}
.drawer__nav a.active{color:var(--ink);box-shadow:inset 3px 0 0 var(--volt)}

/* Hero */
.cat-hero{
  position:relative;overflow:hidden;
  padding:clamp(34px,5vw,54px) 0 clamp(46px,6vw,70px);
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(18,22,15,.04) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(18,22,15,.04) 1px,transparent 1px);
  background-size:48px 48px;
}
.cat-hero .container{position:relative}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-2);margin-bottom:22px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{color:var(--ink-3)}
.breadcrumb .current{color:var(--ink);font-weight:600}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:3px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  border:1px solid var(--volt);color:var(--ink);background:rgba(200,241,53,.16);
}
.tag--dark{background:rgba(255,106,43,.14);border-color:var(--flame)}
.cat-hero__title{
  margin:18px 0 16px;
  font-size:clamp(34px,5.2vw,64px);
  font-weight:900;line-height:1.08;letter-spacing:-.02em;
  max-width:16em;
}
.cat-hero__lead{font-size:18px;color:var(--ink-2);max-width:62ch;line-height:1.8}
.cat-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-origin{display:flex;flex-direction:column;align-items:center;gap:0;margin-top:34px}
.hero-origin__dot{width:10px;height:10px;border-radius:50%;background:var(--volt);box-shadow:0 0 0 4px rgba(200,241,53,.28)}
.hero-origin__line{width:1px;height:36px;background:var(--line)}
.hero-origin__label{font-size:13px;color:var(--ink-3);letter-spacing:.06em}

/* 板块 */
.section{padding:var(--section) 0}
.section--tight{padding:clamp(44px,6vw,76px) 0}
.section--ink{background:var(--ink);color:var(--paper)}
.section--ink .section__title{color:var(--paper)}
.section--ink .section__desc{color:var(--ink-3)}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:clamp(28px,4vw,48px)}
.section__title{font-size:clamp(26px,3.2vw,40px);font-weight:800;line-height:1.15;letter-spacing:-.01em}
.section__desc{font-size:15px;color:var(--ink-2);max-width:52ch;line-height:1.75}

/* 数据带 */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;
}
.stat{padding:26px 24px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat__num{
  font-family:var(--font-num);font-size:clamp(40px,6vw,72px);font-weight:700;line-height:1;
  letter-spacing:.01em;font-variant-numeric:tabular-nums;display:flex;align-items:baseline;gap:4px;
}
.stat__unit{font-size:15px;font-weight:600;color:var(--ink-2);font-family:var(--font-cn)}
.stat__label{margin-top:10px;font-size:14px;color:var(--ink-2)}

/* 榜单 */
.rank-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.rank-panel__head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:20px 22px;border-bottom:1px solid var(--line)}
.rank-panel__head h3{font-size:19px;font-weight:700}
.rank-panel__head span{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.rank-scroll{overflow-x:auto}
.rank-table{width:100%;border-collapse:collapse;font-size:15px}
.rank-table thead th{
  background:var(--ink);color:var(--paper);
  font-size:13px;font-weight:600;letter-spacing:.04em;text-align:left;
  padding:12px 16px;white-space:nowrap;
}
.rank-table tbody td{padding:15px 16px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums;white-space:nowrap}
.rank-table tbody tr:last-child td{border-bottom:0}
.rank-table tbody tr{transition:background-color .32s var(--ease)}
.rank-table tbody tr:hover{background:var(--paper-2)}
.rank-pos{font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--ink-2)}
.rank-table tbody tr:nth-child(-n+3) .rank-pos{color:var(--flame)}
.rank-team{font-weight:700}
.rank-pts{font-weight:700}

.mini-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.mini-panel + .mini-panel{margin-top:20px}
.mini-panel h3{font-size:17px;font-weight:700;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.mini-list li{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:15px}
.mini-list li:last-child{border-bottom:0}
.mini-list .name{color:var(--ink);font-weight:600}
.mini-list .num{font-family:var(--font-num);font-size:19px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.mini-list .num--volt{color:#7FA012}

/* 时间轴 */
.timeline{position:relative;max-width:960px;margin:0 auto}
.timeline::before{content:'';position:absolute;left:50%;top:10px;bottom:10px;width:1px;background:var(--line);transform:translateX(-50%)}
.timeline__item{position:relative;width:50%;padding:0 44px 34px 0}
.timeline__item:nth-child(even){margin-left:50%;padding:0 0 34px 44px}
.timeline__dot{
  position:absolute;top:22px;right:0;
  width:10px;height:10px;border-radius:50%;background:var(--volt);
  border:2px solid var(--paper);transform:translateX(50%);
  box-shadow:0 0 0 1px var(--line);
}
.timeline__item:nth-child(even) .timeline__dot{left:0;right:auto;transform:translateX(-50%)}
.timeline__card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;transition:border-color .32s var(--ease),box-shadow .32s var(--ease),transform .32s var(--ease);
}
.timeline__card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-3px)}
.timeline__step{font-family:var(--font-num);font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--flame)}
.timeline__card h3{font-size:19px;font-weight:700;margin:8px 0 10px}
.timeline__card p{font-size:15px;color:var(--ink-2);line-height:1.75}
.timeline__meta{margin-top:12px;font-size:13px;color:var(--ink-3);letter-spacing:.02em}

/* 球队资料卡 */
.team-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:border-color .32s var(--ease),box-shadow .32s var(--ease),transform .32s var(--ease);
}
.team-card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-3px)}
.team-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border:0;border-bottom:1px solid var(--line);border-radius:0}
.team-card__body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.team-card__body h3{font-size:19px;font-weight:700;margin-bottom:10px}
.team-card__body p{font-size:15px;color:var(--ink-2);line-height:1.75}
.team-card__facts{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:3px;border:1px solid var(--line);
  background:var(--paper);font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums;
}
.team-card__link{margin-top:auto;padding-top:18px;font-size:14px;font-weight:700;color:var(--ink);border-bottom:1px solid transparent;align-self:flex-start}
.team-card__link:hover{border-bottom-color:var(--volt)}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.accordion{border:0;background:transparent;margin:0}
.accordion .accordion-item{border-bottom:1px solid var(--line);background:transparent}
.accordion .accordion-title{
  display:block;padding:22px 48px 22px 16px;
  font-size:17px;font-weight:700;color:var(--ink);
  background:transparent;border:0;line-height:1.5;
  transition:box-shadow .32s var(--ease),color .32s var(--ease);
}
.accordion .accordion-title::before{
  content:'+';position:absolute;right:8px;top:50%;left:auto;bottom:auto;
  margin:0;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--ink-2);
  transition:transform .32s var(--ease),color .32s var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg);color:var(--ink)}
.accordion .accordion-item.is-active .accordion-title{box-shadow:inset 4px 0 0 var(--volt)}
.accordion .accordion-content{
  padding:0 48px 22px 16px;background:transparent;border:0;
  font-size:16px;color:var(--ink-2);line-height:1.8;
}
.accordion .accordion-content p{margin:0}

/* CTA */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  background:var(--ink);color:var(--paper-on-ink);
  border-radius:var(--radius);padding:clamp(28px,4vw,46px);
}
.cta-band__title{font-size:clamp(24px,3vw,32px);font-weight:800;line-height:1.2;color:var(--paper)}
.cta-band__desc{margin-top:10px;font-size:15px;color:var(--ink-3);max-width:52ch;line-height:1.75}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-band .btn--ghost{border-color:rgba(246,244,238,.5);color:var(--paper)}
.cta-band .btn--ghost:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}

/* 页脚 */
.site-footer{background:var(--ink);color:var(--paper-on-ink);margin-top:clamp(48px,7vw,96px);padding:clamp(48px,7vw,80px) 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand__mark{border-color:rgba(246,244,238,.6)}
.footer-brand .brand__mark::after{background:var(--paper)}
.footer-brand .brand__name{color:var(--paper);font-size:18px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--ink-3);line-height:1.8;max-width:34ch}
.footer-title{font-size:15px;font-weight:700;color:var(--paper);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--ink-3)}
.footer-links a:hover{color:var(--volt)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:clamp(32px,5vw,56px);padding-top:22px;
  border-top:1px solid rgba(246,244,238,.14);
  font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;
}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* 响应式 */
@media screen and (max-width:1023px){
  .search{display:none}
  .menu-toggle{display:flex}
  .channel-nav{display:none}
  .topbar__inner{min-height:60px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media screen and (max-width:900px){
  .stat-band{grid-template-columns:1fr 1fr}
  .stat:nth-child(3){border-left:0;border-top:1px solid var(--line)}
  .stat:nth-child(4){border-top:1px solid var(--line)}
}
@media screen and (max-width:768px){
  .container{padding:0 16px}
  .cat-hero__lead{font-size:16px}
  .timeline::before{left:9px;transform:none}
  .timeline__item,.timeline__item:nth-child(even){width:100%;margin-left:0;padding:0 0 26px 34px}
  .timeline__dot,.timeline__item:nth-child(even) .timeline__dot{left:4px;right:auto;transform:none}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
}
@media screen and (max-width:520px){
  .brand__name{font-size:17px}
  .stat-band{grid-template-columns:1fr}
  .stat{border-left:0;border-top:1px solid var(--line)}
  .stat:first-child{border-top:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .accordion .accordion-title{padding-right:40px;font-size:16px}
  .accordion .accordion-content{padding-right:20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}