/* roulang page: index */
/* ============ 设计令牌 ============ */
:root{
  --ink-950:#0B0D10;
  --ink-900:#111419;
  --ink-800:#181C23;
  --ink-700:#242A33;
  --ink-500:#6B7480;
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --line-paper:#E3DFD6;
  --text-1:#10131A;
  --text-2:#5A6270;
  --lime:#C8FF2E;
  --lime-600:#A8E01F;
  --coral:#FF5A3C;
  --ok:#3FD68C;
  --warn:#FFB020;

  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow Condensed","Oswald","DIN Alternate",ui-sans-serif,"Helvetica Neue",Arial,sans-serif;

  --radius-card:16px;
  --radius-img:12px;
  --radius-tag:6px;
  --radius-input:10px;
  --radius-pill:999px;

  --shadow-1:0 1px 2px rgba(16,19,26,.06);
  --shadow-2:0 18px 40px -24px rgba(16,19,26,.28);

  --container:1240px;
  --content:1160px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ============ Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-950);
  color:#E9EBEF;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
::selection{background:var(--lime);color:var(--ink-950);}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--ink-950);}
::-webkit-scrollbar-thumb{background:var(--ink-700);border-radius:999px;}
::-webkit-scrollbar-thumb:hover{background:#323a45;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}

/* ============ 通用排版 ============ */
.eyebrow{
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--lime);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;background:var(--lime);display:inline-block;
}
h1{font-size:clamp(30px,5vw,52px);line-height:1.22;font-weight:900;letter-spacing:.01em;color:#fff;}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:800;letter-spacing:.01em;color:#fff;}
h3{font-size:20px;line-height:1.4;font-weight:700;color:#fff;}
.lede{font-size:18px;line-height:1.75;color:#B9BFC9;}
.muted{color:var(--ink-500);}
.small{font-size:14px;line-height:1.7;}
.note{font-size:12.5px;line-height:1.7;color:var(--ink-500);}
.num{font-family:var(--font-num);letter-spacing:.02em;}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:36px;
  padding-bottom:20px;
  border-bottom:1px solid var(--ink-700);
}
.section-head .head-text{max-width:640px;}
.section-head h2{margin-top:12px;}
.section-head .head-desc{font-size:14px;color:var(--ink-500);max-width:320px;line-height:1.75;}

/* ============ 顶部公告条 ============ */
.topbar{
  background:var(--lime);
  color:var(--ink-950);
  font-size:13px;
  height:36px;
  display:flex;
  align-items:center;
  position:relative;
}
.topbar .container{display:flex;align-items:center;gap:12px;}
.topbar strong{font-weight:700;}
.topbar-text{
  flex:1;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-close{
  width:28px;height:28px;
  display:grid;place-items:center;
  border-radius:50%;
  color:var(--ink-950);
  font-size:16px;
  line-height:1;
  transition:background .18s var(--ease);
}
.topbar-close:hover{background:rgba(11,13,16,.14);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink-900);
  border-bottom:1px solid var(--ink-700);
  transition:padding .18s var(--ease),box-shadow .18s var(--ease);
}
.site-header.is-scrolled{
  box-shadow:0 10px 30px -22px rgba(0,0,0,.9);
}
.nav-wrap{
  height:72px;
  display:flex;
  align-items:center;
  gap:28px;
  transition:height .18s var(--ease);
}
.site-header.is-scrolled .nav-wrap{height:64px;}

.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-mark{
  width:34px;height:34px;
  border-radius:9px;
  background:linear-gradient(140deg,var(--lime) 0%,var(--lime-600) 58%,#7FA80F 100%);
  display:grid;place-items:center;
  color:var(--ink-950);
  font-family:var(--font-num);
  font-weight:700;
  font-size:17px;
  letter-spacing:.02em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:17px;font-weight:800;color:#fff;letter-spacing:.02em;}
.logo-text span{font-size:11px;color:var(--ink-500);letter-spacing:.14em;font-family:var(--font-num);}

.main-nav{margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:28px;}
.main-nav a{
  position:relative;
  display:inline-block;
  font-size:15px;
  color:#C3C8D1;
  padding:6px 0;
  transition:color .18s var(--ease);
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--lime);
  transition:width .22s var(--ease);
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{width:100%;}
.main-nav a.is-active{color:#fff;}
.main-nav a.is-active::after{width:100%;}

.nav-cta{margin-left:8px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--ink-700);
  border-radius:10px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:#E9EBEF;
  border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.drawer{
  display:none;
  border-top:1px solid var(--ink-700);
  background:var(--ink-900);
}
.drawer.is-open{display:block;}
.drawer ul{display:flex;flex-direction:column;}
.drawer a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:48px;
  padding:0 32px;
  font-size:15px;
  color:#D5D9E0;
  border-bottom:1px solid var(--ink-700);
}
.drawer a.is-active{color:var(--lime);}
.drawer .drawer-cta{padding:18px 32px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  height:44px;
  padding:0 22px;
  border:1px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),opacity .18s var(--ease);
  cursor:pointer;
  white-space:nowrap;
}
.btn-sm{height:32px;padding:0 16px;font-size:13.5px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-primary{background:var(--lime);color:var(--ink-950);}
.btn-primary:hover{background:var(--lime-600);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--ink-700);color:#E9EBEF;}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ink-500);font-size:14px;font-weight:600;
  padding:0;height:auto;border:0;background:none;
}
.btn-link .arrow{transition:transform .18s var(--ease);}
.btn-link:hover{color:var(--lime);}
.btn-link:hover .arrow{transform:translateX(4px);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none;}
.btn.is-loading{position:relative;color:transparent;}
.btn.is-loading::after{
  content:"";
  position:absolute;
  width:14px;height:14px;
  border:2px solid rgba(11,13,16,.35);
  border-top-color:var(--ink-950);
  border-radius:50%;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ============ 徽章 / 标签 ============ */
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12.5px;
  line-height:1;
  padding:6px 10px;
  border-radius:var(--radius-pill);
  background:var(--ink-800);
  color:var(--ink-500);
  white-space:nowrap;
}
.chip-cat{
  background:transparent;
  border:1px solid var(--ink-700);
  color:var(--lime);
}
.chip-time{background:transparent;border:1px solid var(--ink-700);color:var(--coral);}
.chip-plain{background:var(--ink-800);color:#B9BFC9;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--ink-950);
  padding:72px 0 80px;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  top:-140px;right:-120px;
  width:520px;height:420px;
  background:linear-gradient(105deg,rgba(200,255,46,.14),rgba(200,255,46,0) 62%);
  transform:skewX(-14deg);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.hero h1{margin:18px 0 16px;}
.hero-sub{
  font-size:17px;
  line-height:1.8;
  color:#B9BFC9;
  max-width:560px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius-card);
  border:1px solid var(--ink-700);
}
.stamp{
  position:absolute;
  right:16px;bottom:16px;
  padding:10px 12px;
  background:rgba(11,13,16,.82);
  border:1px solid var(--lime);
  border-radius:var(--radius-tag);
  color:var(--lime);
  font-size:12px;
  line-height:1.4;
  letter-spacing:.06em;
  backdrop-filter:blur(2px);
  text-align:center;
}
.stamp b{display:block;font-family:var(--font-num);font-size:15px;letter-spacing:.08em;}

/* ============ 数据条 ============ */
.stat-strip{
  border-top:1px solid var(--ink-700);
  border-bottom:1px solid var(--ink-700);
  background:var(--ink-900);
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding:30px 0;
}
.stat-item{border-left:2px solid var(--ink-700);padding-left:18px;}
.stat-item:first-child{border-left-color:var(--lime);}
.stat-num{
  font-family:var(--font-num);
  font-size:34px;
  font-weight:700;
  line-height:1.1;
  color:#fff;
  letter-spacing:.02em;
}
.stat-num em{font-style:normal;font-size:16px;color:var(--lime);margin-left:4px;}
.stat-label{font-size:13px;color:var(--ink-500);margin-top:6px;}

/* ============ 合集目录 ============ */
.index-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  column-gap:48px;
  border-top:1px solid var(--ink-700);
}
.index-item{
  display:flex;
  align-items:flex-start;
  gap:20px;
  padding:22px 16px;
  border-bottom:1px solid var(--ink-700);
  transition:background .18s var(--ease),transform .18s var(--ease);
}
.index-item:hover{background:var(--ink-800);transform:translateX(4px);}
.index-no{
  font-family:var(--font-num);
  font-size:32px;
  font-weight:700;
  line-height:1;
  color:var(--lime);
  min-width:52px;
  transition:color .18s var(--ease);
}
.index-item:hover .index-no{color:var(--coral);}
.index-body{flex:1;}
.index-body h3{font-size:18px;margin-bottom:6px;}
.index-body p{font-size:14px;color:var(--ink-500);line-height:1.7;}
.index-go{
  color:var(--ink-500);
  font-size:16px;
  padding-top:6px;
  transition:transform .18s var(--ease),color .18s var(--ease);
}
.index-item:hover .index-go{transform:translateX(4px);color:var(--lime);}

/* ============ 精选条目 ============ */
.pick-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:24px;
}
.card{
  background:var(--ink-800);
  border:1px solid var(--ink-700);
  border-radius:var(--radius-card);
  transition:transform .18s var(--ease),border-color .18s var(--ease);
  overflow:hidden;
}
.card:hover{transform:translateY(-3px);border-color:var(--lime);}
.card-media{overflow:hidden;}
.card-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .3s var(--ease);
}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:22px;}
.card-body h3{margin:12px 0 10px;font-size:21px;line-height:1.4;}
.card-body p{font-size:14px;color:var(--ink-500);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:18px;
  padding-top:14px;
  border-top:1px solid var(--ink-700);
  font-size:13px;
  color:var(--ink-500);
}
.card-foot .arrow{transition:transform .18s var(--ease);}
.card:hover .card-foot .arrow{transform:translateX(4px);color:var(--lime);}
.pick-side{display:grid;gap:16px;}
.pick-side .card{display:grid;grid-template-columns:150px 1fr;align-items:stretch;}
.pick-side .card-media{height:100%;}
.pick-side .card-media img{height:100%;aspect-ratio:auto;}
.pick-side .card-body{padding:18px 20px;}
.pick-side .card-body h3{font-size:17px;margin:8px 0 8px;}

/* ============ 最新信息列表（CMS） ============ */
.news-list{border-top:1px solid var(--ink-700);}
.news-row{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:22px;
  min-height:84px;
  padding:16px 16px 16px 18px;
  border-bottom:1px solid var(--ink-700);
  transition:background .18s var(--ease);
  position:relative;
}
.news-row::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:3px;
  background:transparent;
  border-radius:2px;
}
.news-row.is-top::before{background:var(--lime);}
.news-row:hover{background:var(--ink-800);}
.news-row:hover .news-title{color:var(--lime);}
.news-row:hover .arrow{transform:translateX(4px);}
.news-main{min-width:0;}
.news-title{
  display:block;
  font-size:17px;
  font-weight:600;
  color:#fff;
  margin-bottom:6px;
  transition:color .18s var(--ease);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.news-desc{
  display:block;
  font-size:14px;
  color:var(--ink-500);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.news-meta{
  display:flex;
  align-items:center;
  gap:16px;
  font-size:13px;
  color:var(--ink-500);
  font-family:var(--font-num);
  letter-spacing:.02em;
}
.arrow{transition:transform .18s var(--ease);}

.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
  padding:56px 24px;
  border:1px dashed var(--ink-700);
  border-radius:var(--radius-card);
  background:var(--ink-900);
  text-align:center;
}
.empty-state svg{width:40px;height:40px;stroke:var(--ink-500);fill:none;stroke-width:1.5;}
.empty-state p{font-size:15px;color:var(--ink-500);}

/* ============ 分类入口 ============ */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.cat-card{
  display:flex;
  flex-direction:column;
  background:var(--ink-800);
  border:1px solid var(--ink-700);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:transform .18s var(--ease),border-color .18s var(--ease);
}
.cat-card:hover{transform:translateY(-3px);border-color:var(--lime);}
.cat-card .cat-media{overflow:hidden;}
.cat-card .cat-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .3s var(--ease);
}
.cat-card:hover .cat-media img{transform:scale(1.03);}
.cat-body{padding:20px;display:flex;flex-direction:column;flex:1;gap:10px;}
.cat-body h3{font-size:18px;}
.cat-body p{font-size:14px;color:var(--ink-500);line-height:1.7;flex:1;}
.cat-foot{
  display:flex;align-items:center;justify-content:space-between;
  font-family:var(--font-num);
  font-size:13px;
  color:var(--coral);
  padding-top:12px;
  border-top:1px solid var(--ink-700);
}
.cat-foot .arrow{color:var(--ink-500);}
.cat-card:hover .cat-foot .arrow{color:var(--lime);transform:translateX(4px);}

/* ============ FAQ ============ */
.faq-layout{
  display:grid;
  grid-template-columns:340px 1fr;
  gap:48px;
  align-items:start;
}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border:1px solid var(--ink-700);
  border-radius:14px;
  background:var(--ink-900);
  overflow:hidden;
  position:relative;
  transition:border-color .18s var(--ease);
}
.faq-item::before{
  content:"";
  position:absolute;left:0;top:0;bottom:0;width:3px;
  background:transparent;
  transition:background .18s var(--ease);
}
.faq-item.is-open::before{background:var(--lime);}
.faq-item.is-open{border-color:#39414d;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  text-align:left;
  padding:18px 20px 18px 24px;
  font-size:17px;
  font-weight:500;
  color:#fff;
}
.faq-sign{
  flex-shrink:0;
  width:22px;height:22px;
  display:grid;place-items:center;
  border:1px solid var(--ink-700);
  border-radius:50%;
  color:var(--lime);
  font-size:14px;
  line-height:1;
  transition:transform .22s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.faq-item.is-open .faq-sign{transform:rotate(180deg);background:var(--lime);color:var(--ink-950);border-color:var(--lime);}
.faq-a{
  display:none;
  padding:0 24px 20px 24px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-500);
}
.faq-item.is-open .faq-a{display:block;}

/* ============ CTA 通栏 ============ */
.cta-band{
  position:relative;
  background:var(--ink-800);
  border:1px solid var(--ink-700);
  border-radius:22px;
  padding:38px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 22px);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{margin-bottom:10px;}
.cta-actions{display:flex;gap:14px;flex-shrink:0;}
.share-row{
  display:none;
  gap:10px;
  margin-top:16px;
}
.share-row.is-open{display:flex;flex-wrap:wrap;}
.share-row a{
  font-size:13px;
  padding:8px 14px;
  border:1px solid var(--ink-700);
  border-radius:var(--radius-pill);
  color:#C3C8D1;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.share-row a:hover{border-color:var(--lime);color:var(--lime);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-900);
  border-top:1px solid var(--ink-700);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:44px;
}
.footer-brand p{font-size:14px;color:var(--ink-500);line-height:1.85;margin-top:16px;max-width:300px;}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--ink-500);transition:color .18s var(--ease);}
.footer-col a:hover{color:var(--lime);}
.footer-contact li{font-size:14px;color:var(--ink-500);line-height:1.8;}
.footer-bottom{
  border-top:1px solid var(--ink-700);
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  font-size:13px;
  color:var(--ink-500);
  flex-wrap:wrap;
}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container{padding:0 28px;}
  .index-list{column-gap:32px;}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .main-nav{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero{padding:56px 0 64px;}
  .hero-media{order:2;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:28px 20px;}
  .pick-grid{grid-template-columns:1fr;}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:44px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .section-head .head-desc{max-width:none;}
  .index-list{grid-template-columns:1fr;}
  .news-row{
    grid-template-columns:1fr;
    gap:10px;
    padding:18px 16px;
  }
  .news-title,.news-desc{white-space:normal;}
  .news-meta{justify-content:space-between;}
  .pick-side .card{grid-template-columns:120px 1fr;}
  .cta-band{padding:28px 22px;}
  .drawer a{padding:0 20px;}
  .drawer .drawer-cta{padding:18px 20px;}
}
@media (max-width:560px){
  h1{font-size:30px;}
  .container{padding:0 18px;}
  .cat-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .hero-actions .btn{width:100%;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .stat-grid{grid-template-columns:1fr;}
  .pick-side .card{grid-template-columns:104px 1fr;}
  .stamp{right:10px;bottom:10px;padding:8px 10px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  .card:hover,.index-item:hover,.cat-card:hover{transform:none;}
}

/* roulang page: article */
:root{
  --ink-950:#0B0D10;
  --ink-900:#111419;
  --ink-800:#181C23;
  --ink-700:#242A33;
  --ink-500:#6B7480;
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --line-paper:#E3DFD6;
  --text-1:#10131A;
  --text-2:#5A6270;
  --lime:#C8FF2E;
  --lime-600:#A8E01F;
  --coral:#FF5A3C;
  --ok:#3FD68C;
  --warn:#FFB020;
  --radius-card:16px;
  --radius-img:12px;
  --radius-chip:6px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(16,19,26,.06);
  --shadow-2:0 18px 40px -24px rgba(16,19,26,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  --font-num:"Barlow Condensed","Oswald","DIN Alternate",ui-sans-serif,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-950);
  color:#fff;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.01em;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
::selection{background:var(--lime);color:var(--ink-950);}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--ink-950);}
::-webkit-scrollbar-thumb{background:var(--ink-700);border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:var(--ink-500);}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}
.narrow{max-width:1160px;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink-900);
  border-bottom:1px solid var(--ink-700);
  transition:padding .18s var(--ease);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;
}
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:10px;
  background:var(--lime);color:var(--ink-950);
  font-weight:900;font-size:16px;letter-spacing:.02em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:17px;font-weight:800;color:#fff;}
.logo-text span{font-size:11.5px;color:var(--ink-500);letter-spacing:.14em;}
.main-nav ul{display:flex;align-items:center;gap:28px;}
.main-nav a{
  position:relative;display:inline-block;
  font-size:15px;color:var(--ink-500);
  padding:6px 0;transition:color .18s var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--lime);transition:width .22s var(--ease);
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{width:100%;}
.main-nav a.is-active{color:#fff;}
.main-nav a.is-active::after{width:100%;}
.header-actions{display:flex;align-items:center;gap:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--ink-700);
  background:var(--ink-800);border-radius:10px;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  border-top:1px solid var(--ink-700);
  background:var(--ink-900);
  padding:8px 32px 22px;
}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;font-size:15px;color:#fff;
  border-bottom:1px solid var(--ink-700);
}
.mobile-drawer a:last-of-type{border-bottom:none;}
.mobile-drawer .drawer-cta{margin-top:14px;}
.mobile-drawer .drawer-cta a{border-bottom:none;justify-content:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;font-size:15px;
  border:1px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:36px;padding:0 18px;font-size:14px;}
.btn-md{height:44px;padding:0 24px;}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-primary{background:var(--lime);color:var(--ink-950);}
.btn-primary:hover{background:var(--lime-600);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#fff;border-color:var(--ink-700);}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime);}
.btn-ghost:active{transform:translateY(1px);}
.btn-link{
  background:none;border:none;padding:0;color:var(--ink-500);font-size:14px;
  display:inline-flex;align-items:center;gap:6px;
}
.btn-link:hover{color:var(--lime);}
.btn-link .arrow{transition:transform .18s var(--ease);}
.btn-link:hover .arrow{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ---------- 徽章 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;line-height:1;padding:7px 12px;border-radius:999px;
  background:var(--ink-800);color:var(--ink-500);border:1px solid transparent;
}
.chip-cat{background:transparent;border-color:var(--ink-700);color:var(--lime);}
.chip-time{background:var(--ink-800);color:var(--coral);}
.chip-num{font-family:var(--font-num);letter-spacing:.06em;font-size:13px;}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-500);
  padding:28px 0 16px;
}
.crumb a:hover{color:#fff;}
.crumb .sep{color:var(--ink-700);}
.crumb .now{color:var(--coral);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:420px;}

/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;
  padding:8px 0 40px;
  border-bottom:1px solid var(--ink-700);
  background-image:
    linear-gradient(rgba(11,13,16,.92),rgba(11,13,16,.97)),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
}
.article-hero .meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:18px;}
.article-hero h1{
  font-size:clamp(30px,5vw,52px);
  line-height:1.22;
  max-width:900px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.article-sub{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  margin-top:22px;font-size:14px;color:var(--ink-500);
}
.article-sub .dot{width:4px;height:4px;border-radius:50%;background:var(--ink-700);}
.article-sub b{color:#fff;font-weight:600;}

/* ---------- 布局 ---------- */
.layout{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:32px;
  padding:44px 0 88px;
  align-items:start;
}

/* ---------- 正文阅读面 ---------- */
.article-body{
  background:var(--paper);
  color:var(--text-1);
  border-radius:var(--radius-card);
  padding:44px 48px;
  box-shadow:var(--shadow-2);
  font-size:16.5px;
  line-height:1.9;
}
.article-body > *{max-width:740px;}
.article-body h2{
  position:relative;
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.3;
  color:var(--text-1);
  margin:40px 0 16px;
  padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  background:var(--lime);border-radius:2px;
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{
  font-size:20px;font-weight:600;line-height:1.4;
  margin:28px 0 12px;color:var(--text-1);
}
.article-body p{margin:0 0 1.15em;color:var(--text-1);}
.article-body a{color:var(--text-1);text-decoration:underline;text-decoration-color:var(--lime);text-underline-offset:3px;}
.article-body a:hover{color:var(--coral);text-decoration-color:var(--coral);}
.article-body strong{font-weight:600;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;
  background:var(--paper-2);
  border-left:3px solid var(--coral);
  border-radius:0 10px 10px 0;
  color:var(--text-2);
  font-size:16px;line-height:1.85;
}
.article-body ul,.article-body ol{margin:16px 0 20px;padding-left:0;}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:22px;margin-bottom:10px;line-height:1.9;color:var(--text-1);
}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:8px;height:8px;background:var(--lime);border-radius:2px;
}
.article-body ol{counter-reset:li;}
.article-body ol li{counter-increment:li;}
.article-body ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-family:var(--font-num);font-size:14px;color:var(--coral);letter-spacing:.04em;
}
.article-body img{
  border-radius:var(--radius-img);
  margin:24px auto;
  box-shadow:var(--shadow-1);
}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  text-align:center;font-size:12.5px;color:var(--text-2);margin-top:10px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line-paper);border-radius:10px;overflow:hidden;
}
.article-body th,.article-body td{
  border:1px solid var(--line-paper);padding:10px 14px;text-align:left;
}
.article-body th{background:var(--paper-2);font-weight:600;}
.article-body hr{border:none;border-top:1px solid var(--line-paper);margin:32px 0;}

/* 正文标签行 */
.tag-row{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:24px 48px 0;
}

/* 无内容态 */
.empty-state{
  background:var(--ink-800);border:1px solid var(--ink-700);
  border-radius:var(--radius-card);
  padding:56px 32px;text-align:center;
}
.empty-state .icon{
  width:44px;height:44px;margin:0 auto 16px;border-radius:12px;
  border:1px dashed var(--ink-700);display:flex;align-items:center;justify-content:center;
  color:var(--lime);font-family:var(--font-num);font-size:18px;
}
.empty-state p{font-size:15px;color:var(--ink-500);margin-bottom:20px;}

/* ---------- 侧栏 ---------- */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--ink-800);
  border:1px solid var(--ink-700);
  border-radius:var(--radius-card);
  padding:22px;
}
.side-card h3{
  font-size:15px;color:#fff;margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3::before{content:"";width:3px;height:14px;background:var(--lime);border-radius:2px;}
.toc-list li{margin-bottom:4px;}
.toc-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;color:var(--ink-500);padding:8px 0;
  border-bottom:1px solid var(--ink-700);
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.toc-list li:last-child a{border-bottom:none;}
.toc-list a:hover{color:var(--lime);padding-left:4px;}
.toc-list .num{font-family:var(--font-num);color:var(--coral);font-size:13px;letter-spacing:.06em;}
.mini-list li + li{margin-top:12px;}
.mini-list a{display:block;}
.mini-list .mini-title{
  font-size:14.5px;color:#fff;line-height:1.55;
  transition:color .18s var(--ease);
}
.mini-list a:hover .mini-title{color:var(--lime);}
.mini-list .mini-date{font-family:var(--font-num);font-size:12.5px;color:var(--ink-500);letter-spacing:.06em;margin-top:4px;}
.side-actions{display:flex;flex-direction:column;gap:10px;}
.side-actions .btn{width:100%;}

/* ---------- 文末区 ---------- */
.article-foot{margin-top:28px;display:flex;flex-direction:column;gap:24px;}
.cta-bar{
  position:relative;overflow:hidden;
  background:var(--ink-800);
  border:1px solid var(--ink-700);
  border-radius:var(--radius-card);
  padding:28px 30px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.cta-bar::after{
  content:"";position:absolute;right:-60px;top:-60px;width:180px;height:180px;
  background:radial-gradient(circle,rgba(200,255,46,.10),transparent 70%);
}
.cta-bar h3{font-size:20px;line-height:1.4;margin-bottom:6px;}
.cta-bar p{font-size:14px;color:var(--ink-500);}
.cta-bar .cta-actions{display:flex;gap:12px;flex-shrink:0;}
.post-nav{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;
}
.post-nav a{
  display:block;background:var(--ink-800);border:1px solid var(--ink-700);
  border-radius:14px;padding:18px 20px;
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.post-nav a:hover{border-color:var(--lime);transform:translateY(-3px);}
.post-nav .kicker{font-size:12.5px;color:var(--ink-500);letter-spacing:.08em;margin-bottom:8px;display:block;}
.post-nav .t{font-size:15px;color:#fff;line-height:1.55;}
.post-nav .right{text-align:right;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  border-top:1px solid var(--ink-700);
  padding:56px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--ink-500);line-height:1.85;max-width:360px;}
.footer-col h4{
  font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.04em;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--ink-500);transition:color .18s var(--ease);}
.footer-col ul a:hover{color:var(--lime);}
.footer-contact li{font-size:14px;color:var(--ink-500);line-height:1.8;}
.footer-bottom{
  border-top:1px solid var(--ink-700);
  padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--ink-500);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .layout{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:64px;}
  .sidebar{position:static;}
  .article-body{padding:32px 26px;}
  .tag-row{padding:24px 26px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{height:60px;}
  .article-sub{gap:12px;}
  .cta-bar{flex-direction:column;align-items:flex-start;}
  .cta-bar .cta-actions{width:100%;}
  .cta-bar .cta-actions .btn{flex:1;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .right{text-align:left;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .logo-text span{display:none;}
  .article-body{padding:26px 18px;font-size:16px;}
  .tag-row{padding:20px 18px 0;}
  .article-hero h1{-webkit-line-clamp:3;}
  .crumb .now{max-width:180px;}
  .post-nav{gap:12px;}
  .cta-bar{padding:22px 20px;}
  .cta-bar h3{font-size:18px;}
  .btn-lg{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink-950:#0B0D10;
  --ink-900:#111419;
  --ink-800:#181C23;
  --ink-700:#242A33;
  --ink-500:#6B7480;
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --line-paper:#E3DFD6;
  --text-1:#10131A;
  --text-2:#5A6270;
  --lime:#C8FF2E;
  --lime-600:#A8E01F;
  --coral:#FF5A3C;
  --ok:#3FD68C;
  --warn:#FFB020;
  --shadow-1:0 1px 2px rgba(16,19,26,.06);
  --shadow-2:0 18px 40px -24px rgba(16,19,26,.28);
  --r-card:16px;
  --r-img:12px;
  --r-tag:6px;
  --r-input:10px;
  --r-pill:999px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"Barlow Condensed","Oswald","DIN Alternate",ui-sans-serif,"Segoe UI",sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-950);
  color:#fff;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
::selection{background:var(--lime);color:var(--ink-950)}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
.content-wrap{max-width:1160px}
.sec{padding:88px 0}
.sec-tight{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:13px;letter-spacing:.14em;
  color:var(--lime);text-transform:uppercase;margin-bottom:10px;
}
.sec-eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);display:block}
h1{font-size:clamp(30px,5vw,52px);line-height:1.22;font-weight:800;letter-spacing:.01em}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:800;letter-spacing:.01em}
h3{font-size:20px;line-height:1.4;font-weight:700}
.lead{font-size:18px;line-height:1.75;color:#C4C9D2}
.muted{color:var(--ink-500)}
.num{font-family:var(--font-num);letter-spacing:.02em}

/* ---------- 顶部公告条 ---------- */
.topbar{background:var(--lime);color:var(--ink-950);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px}
.topbar p{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:36px}
.topbar b{font-weight:800}
.topbar-close{width:26px;height:26px;line-height:1;border-radius:50%;font-size:16px;display:grid;place-items:center;color:var(--ink-950)}
.topbar-close:hover{background:rgba(11,13,16,.12)}
body.topbar-hidden .topbar{display:none}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--ink-900);border-bottom:1px solid var(--ink-700);transition:box-shadow 180ms var(--ease)}
.site-header.is-stuck{box-shadow:0 10px 30px -18px rgba(0,0,0,.9)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.site-header.is-stuck .header-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:10px;background:var(--lime);color:var(--ink-950);
  display:grid;place-items:center;font-weight:900;font-size:14px;letter-spacing:.04em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:16px;font-weight:800;color:#fff;letter-spacing:.02em}
.logo-text span{font-size:11.5px;color:var(--ink-500);letter-spacing:.22em}
.main-nav ul{display:flex;align-items:center;gap:28px}
.main-nav a{
  position:relative;display:inline-block;padding:8px 0;font-size:15px;
  color:#B9BFC9;transition:color 180ms var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform 200ms var(--ease);
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:#fff;font-weight:600}
.header-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--ink-700);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;transition:transform 200ms var(--ease),opacity 200ms var(--ease)}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform 180ms var(--ease),background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
}
.btn-sm{height:32px;padding:0 14px;font-size:13.5px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-primary{background:var(--lime);color:var(--ink-950)}
.btn-primary:hover{background:var(--lime-600);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border:1px solid var(--ink-700);color:#fff}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime)}
.btn-link{color:#B9BFC9;padding:0;height:auto;font-weight:500}
.btn-link .arw{transition:transform 180ms var(--ease)}
.btn-link:hover{color:var(--lime)}
.btn-link:hover .arw{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- 徽章 / 标签 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--ink-800);color:#9AA2AE;
  font-size:12.5px;font-family:var(--font-num);letter-spacing:.04em;
}
.chip-topic{background:transparent;border:1px solid rgba(200,255,46,.45);color:var(--lime)}
.chip-time{background:transparent;color:var(--coral)}
.chip-ok{color:var(--ok)}
.chip-line{border:1px solid var(--ink-700);background:transparent}
.square-tag{
  display:inline-block;padding:6px 10px;border:1px solid var(--lime);color:var(--lime);
  font-size:12.5px;letter-spacing:.16em;border-radius:var(--r-tag);font-family:var(--font-num);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-500);margin-bottom:16px}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:var(--ink-700)}
.breadcrumb .cur{color:var(--coral)}

/* ---------- 页面头部 ---------- */
.cat-hero{
  position:relative;background:var(--ink-950);
  background-image:linear-gradient(rgba(11,13,16,.86),rgba(11,13,16,.94)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--ink-700);padding:56px 0 72px;
}
.cat-hero .grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.cat-hero h1{max-width:620px}
.cat-hero h1 em{font-style:normal;color:var(--lime)}
.cat-hero .lead{margin-top:20px;max-width:620px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-figure{position:relative}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--ink-700)}
.hero-figure .stamp{
  position:absolute;right:16px;bottom:16px;background:rgba(11,13,16,.82);
  border:1px solid var(--lime);color:var(--lime);border-radius:var(--r-tag);
  padding:8px 12px;font-size:12.5px;font-family:var(--font-num);letter-spacing:.12em;
}

/* ---------- 编号目录 ---------- */
.toc{display:grid;grid-template-columns:1fr 1fr;gap:0 48px;border-top:1px solid var(--ink-700)}
.toc-item{
  display:flex;align-items:center;gap:18px;padding:22px 14px;border-bottom:1px solid var(--ink-700);
  transition:transform 200ms var(--ease),background 200ms var(--ease);
}
.toc-item:hover{background:var(--ink-800);transform:translateX(4px)}
.toc-num{font-family:var(--font-num);font-size:32px;line-height:1;color:var(--lime);flex-shrink:0;transition:color 200ms var(--ease)}
.toc-item:hover .toc-num{color:var(--coral)}
.toc-main{display:flex;flex-direction:column;gap:4px;min-width:0}
.toc-main b{font-size:18px;font-weight:700;color:#fff}
.toc-main span{font-size:14px;color:var(--ink-500)}
.toc-arw{margin-left:auto;color:var(--ink-500);transition:transform 200ms var(--ease),color 200ms var(--ease)}
.toc-item:hover .toc-arw{transform:translateX(4px);color:var(--lime)}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;background:var(--ink-700)}
.tl-item{position:relative;padding:0 0 34px 20px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-28px;top:6px;width:11px;height:11px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 0 4px rgba(200,255,46,.14);
}
.tl-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.tl-time{font-family:var(--font-num);font-size:19px;color:#fff;letter-spacing:.04em}
.tl-item h3{margin-bottom:6px}
.tl-item p{font-size:14.5px;color:var(--ink-500);max-width:720px}
.timeline-panel{
  background:var(--ink-900);border:1px solid var(--ink-700);border-radius:var(--r-card);
  padding:32px;display:grid;grid-template-columns:5fr 7fr;gap:40px;
}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--ink-800);border:1px solid var(--ink-700);
  border-radius:var(--r-card);overflow:hidden;
  transition:transform 200ms var(--ease),border-color 200ms var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:var(--lime)}
.card-figure{overflow:hidden;border-radius:0}
.card-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform 400ms var(--ease)}
.card:hover .card-figure img{transform:scale(1.03)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:19px;color:#fff}
.card-body p{font-size:14px;color:var(--ink-500);line-height:1.7}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:12px;border-top:1px solid var(--ink-700)}

/* ---------- 列表行 ---------- */
.row-list{border-top:1px solid var(--ink-700)}
.row{
  display:grid;grid-template-columns:150px 1fr 120px 24px;align-items:center;gap:20px;
  padding:22px 14px;border-bottom:1px solid var(--ink-700);
  transition:background 200ms var(--ease);
}
.row:hover{background:var(--ink-800)}
.row-name{font-size:16.5px;font-weight:600;color:#fff;transition:color 200ms var(--ease)}
.row:hover .row-name{color:var(--lime)}
.row-desc{font-size:14px;color:var(--ink-500)}
.row-date{font-family:var(--font-num);font-size:14.5px;color:var(--coral);letter-spacing:.04em;text-align:right}
.row-arw{color:var(--ink-500);transition:transform 200ms var(--ease),color 200ms var(--ease)}
.row:hover .row-arw{transform:translateX(4px);color:var(--lime)}

/* ---------- 纸白区 ---------- */
.paper{background:var(--paper);color:var(--text-1)}
.paper h2,.paper h3{color:var(--text-1)}
.paper .sec-eyebrow{color:#6E7C15}
.paper .sec-eyebrow::before{background:#9BC71A}
.paper-sub{font-size:14.5px;color:var(--text-2);line-height:1.7}
.paper .card{background:var(--paper-2);border-color:var(--line-paper);box-shadow:var(--shadow-1)}
.paper .card:hover{border-color:#9BC71A;transform:translateY(-3px)}
.paper .card-body h3{color:var(--text-1)}
.paper .card-body p{color:var(--text-2)}
.paper .card-foot{border-top-color:var(--line-paper)}
.paper .chip{background:#EFEBE2;color:#4B5460}
.paper .chip-topic{background:transparent;border:1px solid #A9CE3F;color:#5F7A0A}
.paper .chip-time{background:transparent;color:#C8401F}
.paper .row-list{border-top-color:var(--line-paper)}
.paper .row{border-bottom-color:var(--line-paper)}
.paper .row:hover{background:#EFEBE2}
.paper .row-name{color:var(--text-1)}
.paper .row:hover .row-name{color:#5F7A0A}
.paper .row-desc{color:var(--text-2)}
.paper .row-arw{color:var(--text-2)}
.paper .row:hover .row-arw{transform:translateX(4px);color:#5F7A0A}
.split{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start}
.panel-light{background:var(--paper-2);border:1px solid var(--line-paper);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-1)}
.panel-light h3{margin-bottom:10px}
.panel-light p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.bullet-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.bullet-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--text-2)}
.bullet-list li::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;background:#A9CE3F;border-radius:2px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{border:1px solid var(--ink-700);border-radius:14px;overflow:hidden;transition:border-color 200ms var(--ease)}
.faq-item.is-open{border-color:rgba(200,255,46,.5)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:17px;font-weight:600;color:#fff;
  transition:color 200ms var(--ease);
}
.faq-q:hover{color:var(--lime)}
.faq-icon{
  flex-shrink:0;width:22px;height:22px;border-radius:6px;border:1px solid var(--ink-700);
  display:grid;place-items:center;font-family:var(--font-num);font-size:15px;color:var(--lime);
  transition:transform 200ms var(--ease),background 200ms var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(200,255,46,.12)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease)}
.faq-a-inner{padding:0 20px 20px;border-left:3px solid var(--lime);margin-left:0;font-size:15px;line-height:1.85;color:#9AA2AE}
.faq-item.is-open .faq-a{max-height:320px}

/* ---------- 分类互链 ---------- */
.pill-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.cat-pill{
  display:inline-flex;align-items:center;height:40px;padding:0 20px;border-radius:var(--r-pill);
  border:1px solid var(--ink-700);font-size:14.5px;color:#B9BFC9;
  transition:border-color 200ms var(--ease),color 200ms var(--ease),background 200ms var(--ease);
}
.cat-pill:hover{border-color:var(--lime);color:var(--lime)}
.cat-pill.is-current{background:var(--ink-800);border-color:var(--ink-800);color:var(--ink-500);cursor:default}
.cat-pill.is-current:hover{border-color:var(--ink-800);color:var(--ink-500)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink-800);border:1px solid var(--ink-700);border-radius:var(--r-card);
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.02) 0 2px,transparent 2px 10px);
  padding:34px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h3{font-size:24px}
.cta-band p{font-size:14px;color:var(--ink-500);margin-top:8px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);border-top:1px solid var(--ink-700);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:44px}
.footer-brand p{font-size:14px;color:var(--ink-500);line-height:1.85;margin-top:16px;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-contact li{font-size:14px;color:var(--ink-500);transition:color 180ms var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  border-top:1px solid var(--ink-700);padding:20px 0 26px;display:flex;align-items:center;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--ink-500);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .cat-hero .grid{grid-template-columns:1fr;gap:32px}
  .cat-hero{padding:44px 0 56px}
  .toc{grid-template-columns:1fr;gap:0}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:28px}
  .timeline-panel{grid-template-columns:1fr;gap:28px}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sec{padding:64px 0}
}
@media (max-width:768px){
  .header-inner{height:60px}
  .site-header.is-stuck .header-inner{height:60px}
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;left:0;right:0;top:60px;bottom:0;background:var(--ink-950);
    border-top:1px solid var(--ink-700);padding:8px 20px 32px;display:none;overflow-y:auto;
  }
  body.nav-open .main-nav{display:block}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav li{border-bottom:1px solid var(--ink-700)}
  .main-nav a{display:flex;align-items:center;height:48px;font-size:16px;width:100%}
  .main-nav a::after{display:none}
  .main-nav a.is-active{color:var(--lime)}
  .header-cta .btn{display:none}
  .card-grid{grid-template-columns:1fr}
  .row{grid-template-columns:1fr;gap:8px;padding:20px 6px}
  .row-date{text-align:left}
  .row-arw{display:none}
  .cta-band{padding:28px 22px}
  .sec{padding:48px 0}
  .sec-head{margin-bottom:24px}
  .cat-hero{background-image:linear-gradient(rgba(11,13,16,.9),rgba(11,13,16,.96)),url("/assets/images/backpic/back-1.webp")}
}
@media (max-width:560px){
  body{font-size:16px}
  h1{font-size:30px}
  .container{padding:0 16px}
  .logo-text span{letter-spacing:.14em}
  .card-body{padding:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .hero-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .toc-item:hover{transform:none}
  .card:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --ink-950:#0B0D10;
  --ink-900:#111419;
  --ink-800:#181C23;
  --ink-700:#242A33;
  --ink-500:#6B7480;
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --line-paper:#E3DFD6;
  --text-1:#10131A;
  --text-2:#5A6270;
  --lime:#C8FF2E;
  --lime-600:#A8E01F;
  --coral:#FF5A3C;
  --ok:#3FD68C;
  --warn:#FFB020;
  --r-card:16px;
  --r-img:12px;
  --r-chip:6px;
  --r-input:10px;
  --r-btn:999px;
  --shadow-1:0 1px 2px rgba(16,19,26,.06);
  --shadow-2:0 18px 40px -24px rgba(16,19,26,.28);
  --tr:180ms cubic-bezier(.2,.7,.3,1);
  --maxw:1240px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  --font-num:"Barlow Condensed","Oswald","DIN Alternate",ui-sans-serif,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  color:#EDEFF2;
  background:var(--ink-950);
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color var(--tr),border-color var(--tr),background-color var(--tr)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.01em;line-height:1.3}
p{margin:0 0 1.1em}
ul{margin:0;padding:0;list-style:none}
::selection{background:var(--lime);color:var(--ink-950)}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--ink-950)}
::-webkit-scrollbar-thumb{background:var(--ink-700);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:#39414d}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
.narrow{max-width:780px}
.num{font-family:var(--font-num);letter-spacing:.02em}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform var(--tr),background-color var(--tr),color var(--tr),border-color var(--tr);
}
.btn-sm{height:32px;padding:0 16px;font-size:13.5px}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-primary{background:var(--lime);color:var(--ink-950)}
.btn-primary:hover{background:var(--lime-600);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border:1px solid var(--ink-700);color:#fff}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime)}
.btn-link{color:var(--ink-500);padding:0;height:auto;gap:6px;font-size:14.5px}
.btn-link:hover{color:var(--lime)}
.btn-link .arw{transition:transform var(--tr)}
.btn-link:hover .arw{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- Chips / badges ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-chip);
  font-size:12.5px;line-height:1.6;background:var(--ink-800);color:var(--ink-500);
  font-family:var(--font-num);letter-spacing:.04em;
}
.chip-cat{background:transparent;border:1px solid var(--ink-700);color:var(--lime)}
.chip-time{background:transparent;color:var(--coral);border:1px solid rgba(255,90,60,.35)}
.chip-line{background:rgba(200,255,46,.08);border:1px solid rgba(200,255,46,.32);color:var(--lime)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink-900);border-bottom:1px solid var(--ink-700);
  transition:padding var(--tr);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  height:72px;transition:height var(--tr);
}
.site-header.is-stuck .header-inner{height:64px}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:var(--lime);color:var(--ink-950);
  font-weight:900;font-size:16px;letter-spacing:.02em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text b{font-size:16px;font-weight:800;color:#fff}
.logo-text span{font-size:12px;color:var(--ink-500);font-family:var(--font-num);letter-spacing:.06em}
.main-nav ul{display:flex;align-items:center;gap:28px}
.main-nav a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;color:var(--ink-500);
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--lime);transition:width var(--tr);
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{width:100%}
.main-nav a.is-active{color:#fff}
.main-nav a.is-active::after{width:100%}
.header-cta{display:flex;align-items:center;gap:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--ink-700);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;transition:transform var(--tr);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- Breadcrumb ---------- */
.crumb{
  padding:20px 0 0;font-size:13px;color:var(--ink-500);
}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li::after{content:"/";margin-left:8px;color:var(--ink-700)}
.crumb li:last-child::after{content:"";margin:0}
.crumb a:hover{color:var(--lime)}
.crumb .current{color:var(--coral)}

/* ---------- Page hero ---------- */
.page-hero{
  padding:28px 0 72px;
  background:
    radial-gradient(1200px 420px at 82% -10%, rgba(200,255,46,.07), transparent 60%),
    linear-gradient(180deg,#0B0D10 0%,#0F1216 100%);
  border-bottom:1px solid var(--ink-700);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:13px;letter-spacing:.12em;
  color:var(--lime);text-transform:uppercase;margin-bottom:16px;
}
.hero-eyebrow::before{content:"";width:26px;height:1px;background:var(--lime);display:block}
h1{font-size:clamp(30px,5vw,48px);line-height:1.22;color:#fff;font-weight:900}
.hero-lead{margin:18px 0 26px;font-size:17.5px;line-height:1.75;color:#C6CBD3;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px}
.hero-figure{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--ink-700)}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.hero-seal{
  position:absolute;right:18px;bottom:18px;
  padding:8px 14px;border:1px solid var(--lime);color:var(--lime);
  font-size:12.5px;letter-spacing:.08em;font-family:var(--font-num);
  background:rgba(11,13,16,.72);border-radius:var(--r-chip);
}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:44px;padding-top:28px;border-top:1px solid var(--ink-700);
}
.hero-stats b{display:block;font-family:var(--font-num);font-size:30px;color:var(--lime);line-height:1.1}
.hero-stats span{font-size:13.5px;color:var(--ink-500)}

/* ---------- Sections ---------- */
section{padding:88px 0}
.sec-paper{background:var(--paper);color:var(--text-1)}
.sec-paper h2,.sec-paper h3{color:var(--text-1)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head .tag{
  font-family:var(--font-num);font-size:13px;letter-spacing:.14em;color:var(--coral);
  display:block;margin-bottom:12px;
}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
.sec-head p{font-size:14.5px;color:var(--ink-500);margin:0;max-width:420px}
.sec-paper .sec-head p{color:var(--text-2)}

/* ---------- Alternating feature rows ---------- */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:44px 0;border-top:1px solid var(--line-paper);
}
.feature-row:first-of-type{border-top:0;padding-top:0}
.feature-row .f-media{overflow:hidden;border-radius:var(--r-card);box-shadow:var(--shadow-2)}
.feature-row .f-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--tr)}
.feature-row:hover .f-media img{transform:scale(1.03)}
.feature-row.reverse .f-media{order:2}
.f-index{
  font-family:var(--font-num);font-size:14px;letter-spacing:.12em;color:var(--coral);
  display:block;margin-bottom:10px;
}
.feature-row h3{font-size:22px;margin-bottom:14px}
.feature-row p{font-size:16px;line-height:1.9;color:var(--text-2)}
.f-list{margin-top:18px;display:grid;gap:10px}
.f-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--text-1);
}
.f-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;background:var(--lime);
}

/* ---------- Data table ---------- */
.table-wrap{
  margin-top:8px;background:var(--paper-2);border:1px solid var(--line-paper);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
}
table{width:100%;border-collapse:collapse;font-size:15px}
thead th{
  background:#FBF9F5;text-align:left;font-size:13px;letter-spacing:.04em;
  color:var(--text-2);font-weight:600;padding:14px;
  border-bottom:1px solid var(--line-paper);white-space:nowrap;
}
tbody td{padding:14px;border-bottom:1px solid var(--line-paper);color:var(--text-1)}
tbody tr:last-child td{border-bottom:0}
tbody tr{transition:background-color var(--tr)}
tbody tr:hover{background:#FBFBF6}
td .pos{
  display:inline-block;min-width:44px;padding:2px 8px;border-radius:var(--r-chip);
  background:rgba(200,255,46,.35);font-size:12.5px;color:#2C3407;font-family:var(--font-num);
}
td .num-cell{font-family:var(--font-num);font-size:16px;color:var(--coral)}

/* ---------- Category pills ---------- */
.pill-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.pill-card{
  display:flex;flex-direction:column;gap:10px;
  padding:22px;border:1px solid var(--ink-700);border-radius:var(--r-card);
  background:var(--ink-800);transition:transform var(--tr),border-color var(--tr);
}
.pill-card:hover{transform:translateY(-3px);border-color:var(--lime)}
.pill-card h3{font-size:18px;color:#fff}
.pill-card p{font-size:14px;color:var(--ink-500);margin:0;line-height:1.7}
.pill-card .meta{
  display:flex;align-items:center;justify-content:space-between;
  font-family:var(--font-num);font-size:13px;color:var(--ink-500);margin-top:6px;
}
.pill-card .meta .arw{color:var(--lime)}
.pill-card.is-current{
  border-color:var(--ink-700);background:var(--ink-900);opacity:.55;pointer-events:none;
}
.pill-card.is-current h3{color:var(--ink-500)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-list{display:grid;gap:12px}
.faq-item{border:1px solid var(--ink-700);border-radius:14px;background:var(--ink-900);overflow:hidden}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 22px;text-align:left;font-size:17px;font-weight:600;color:#fff;
}
.faq-q .plus{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform var(--tr);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--lime);border-radius:2px;
}
.faq-q .plus::before{left:0;top:10px;width:22px;height:2px}
.faq-q .plus::after{left:10px;top:0;width:2px;height:22px;transition:opacity var(--tr)}
.faq-item.is-open .faq-q .plus{transform:rotate(180deg)}
.faq-item.is-open .faq-q .plus::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--tr)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a .inner{
  padding:0 22px 22px 24px;font-size:15px;line-height:1.85;color:var(--ink-500);
  border-left:3px solid var(--lime);margin-left:21px;
}

/* ---------- CTA band ---------- */
.cta-band{
  border:1px solid var(--ink-700);border-radius:var(--r-card);
  background:
    repeating-linear-gradient(135deg,rgba(255,255,255,.02) 0 2px,transparent 2px 8px),
    var(--ink-800);
  padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{font-size:clamp(20px,2.4vw,28px);color:#fff;margin-bottom:10px}
.cta-band p{margin:0;font-size:14px;color:var(--ink-500)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.share-row{
  display:none;gap:10px;margin-top:16px;
}
.share-row.is-open{display:flex;flex-wrap:wrap}
.share-row a{
  font-size:13px;color:var(--ink-500);padding:6px 12px;border:1px solid var(--ink-700);
  border-radius:var(--r-chip);
}
.share-row a:hover{color:var(--lime);border-color:var(--lime)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-900);border-top:1px solid var(--ink-700);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand p{font-size:14px;color:var(--ink-500);line-height:1.8;margin-top:18px;max-width:320px}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:12px}
.footer-col a{font-size:14px;color:var(--ink-500)}
.footer-col a:hover{color:var(--lime)}
.footer-contact li{font-size:13.5px;color:var(--ink-500)}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--ink-700);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--ink-500);font-family:var(--font-num);letter-spacing:.04em;
}

/* ---------- Mobile drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--ink-950);
  display:none;flex-direction:column;padding:20px 24px 32px;
}
.drawer.is-open{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:60px}
.drawer-close{width:44px;height:44px;border:1px solid var(--ink-700);border-radius:12px;font-size:20px;color:#fff}
.drawer ul{margin-top:12px;display:grid}
.drawer ul li{border-bottom:1px solid var(--ink-700)}
.drawer ul a{display:flex;align-items:center;height:56px;font-size:16px;color:#D6DAE0}
.drawer ul a.is-active{color:var(--lime)}
.drawer .btn{margin-top:24px;width:100%}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px}
  section{padding:64px 0}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-stats{grid-template-columns:repeat(3,1fr);gap:16px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta .btn-ghost{display:none}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .pill-row{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start}
}
@media (max-width:768px){
  body{font-size:16px}
  section{padding:48px 0}
  .page-hero{padding:20px 0 52px}
  .feature-row{grid-template-columns:1fr;gap:24px;padding:32px 0}
  .feature-row.reverse .f-media{order:0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px}
  .hero-stats{grid-template-columns:1fr 1fr;gap:18px}
  .table-wrap{overflow-x:auto}
  table{min-width:620px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:560px){
  .container{padding:0 18px}
  h1{font-size:30px}
  .pill-row{grid-template-columns:1fr}
  .cta-band{padding:26px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .hero-actions .btn{width:100%}
  .logo-text span{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
  .pill-card:hover,.btn-primary:hover{transform:none}
  .feature-row:hover .f-media img{transform:none}
}

/* roulang page: category3 */
:root{
  --ink-950:#0B0D10;
  --ink-900:#111419;
  --ink-800:#181C23;
  --ink-700:#242A33;
  --ink-500:#6B7480;
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --line-paper:#E3DFD6;
  --text-1:#10131A;
  --text-2:#5A6270;
  --lime:#C8FF2E;
  --lime-600:#A8E01F;
  --coral:#FF5A3C;
  --ok:#3FD68C;
  --warn:#FFB020;
  --radius-card:16px;
  --radius-img:12px;
  --radius-chip:6px;
  --shadow-1:0 1px 2px rgba(16,19,26,.06);
  --shadow-2:0 18px 40px -24px rgba(16,19,26,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Barlow Condensed","Oswald","DIN Alternate",ui-sans-serif,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-950);
  color:#fff;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.01em;line-height:1.3}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
::selection{background:var(--lime);color:var(--ink-950)}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--ink-950)}
::-webkit-scrollbar-thumb{background:var(--ink-700);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:#39414d}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.num{font-family:var(--font-num);letter-spacing:.02em}

/* ===== 公告条 ===== */
.notice-bar{background:var(--lime);color:var(--ink-950)}
.notice-inner{display:flex;align-items:center;gap:16px;height:36px;font-size:13px;font-weight:600}
.notice-inner p{margin:0;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.notice-close{width:24px;height:24px;border-radius:6px;display:grid;place-items:center;font-size:15px;line-height:1;color:var(--ink-950);transition:background .18s var(--ease)}
.notice-close:hover{background:rgba(11,13,16,.14)}

/* ===== 页头与导航 ===== */
.site-header{position:sticky;top:0;z-index:80;background:rgba(17,20,25,.96);border-bottom:1px solid var(--ink-700);backdrop-filter:blur(10px)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:38px;height:38px;border-radius:12px;background:var(--lime);color:var(--ink-950);font-weight:800;font-size:15px;display:grid;place-items:center;letter-spacing:.02em}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:16px;font-weight:800}
.logo-text span{font-size:11.5px;color:var(--ink-500);letter-spacing:.14em}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:26px}
.main-nav a{position:relative;display:inline-block;font-size:15px;color:var(--ink-500);padding:6px 0;transition:color .18s var(--ease)}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--lime);transition:width .18s var(--ease)}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after,.main-nav a.is-active::after{width:100%}
.main-nav a.is-active{color:#fff}
.nav-drawer-cta{display:none}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--ink-700);border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:5px;transition:border-color .18s var(--ease)}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle:hover{border-color:var(--lime)}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:999px;border:1px solid transparent;transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);white-space:nowrap}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-md{height:44px;padding:0 22px;font-size:15px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-primary{background:var(--lime);color:var(--ink-950)}
.btn-primary:hover{background:var(--lime-600);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink-700);color:#fff}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime)}
.btn-link{color:var(--ink-500);font-size:15px;font-weight:600;padding:4px 0}
.btn-link .arrow{transition:transform .18s var(--ease)}
.btn-link:hover{color:var(--lime)}
.btn-link:hover .arrow{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ===== 标签 ===== */
.chip{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;padding:4px 10px;border-radius:var(--radius-chip);background:var(--ink-800);color:var(--ink-500);border:1px solid var(--ink-700);letter-spacing:.02em}
.chip-cat{background:transparent;border-color:var(--lime);color:var(--lime)}
.chip-time{background:transparent;border-color:rgba(255,90,60,.4);color:var(--coral)}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.18em;color:var(--lime);font-weight:600}

/* ===== 页头首屏 ===== */
.page-hero{position:relative;padding:48px 0 72px;background:var(--ink-950);border-bottom:1px solid var(--ink-700);overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:56px 56px;pointer-events:none}
.page-hero::after{content:"";position:absolute;top:-80px;right:-60px;width:420px;height:220px;background:linear-gradient(115deg,rgba(200,255,46,.10),rgba(200,255,46,0));transform:skewX(-18deg);pointer-events:none}
.breadcrumb{position:relative;font-size:13px;color:var(--ink-500);margin-bottom:18px}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb .sep{margin:0 8px;color:var(--ink-700)}
.breadcrumb .current{color:var(--coral)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.page-hero h1{font-size:clamp(30px,5vw,52px);line-height:1.22;margin:14px 0 18px;font-weight:900}
.page-hero h1 em{font-style:normal;color:var(--lime)}
.lead{font-size:18px;line-height:1.75;color:#C3C8D0;max-width:640px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-media{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--ink-700)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-stamp{position:absolute;right:14px;bottom:14px;border:1px solid var(--lime);color:var(--lime);background:rgba(11,13,16,.74);font-size:12px;padding:6px 10px;border-radius:var(--radius-chip);letter-spacing:.04em}

/* ===== 通用板块 ===== */
.section{padding:88px 0}
.section+.section{padding-top:0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:36px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);margin-top:10px}
.section-head p{color:var(--ink-500);font-size:14px;max-width:420px;margin:0}
.section-head .head-right{display:flex;flex-direction:column;align-items:flex-end;gap:8px;text-align:right}

/* ===== 卡片 ===== */
.card{background:var(--ink-800);border:1px solid var(--ink-700);border-radius:var(--radius-card);overflow:hidden;transition:transform .18s var(--ease),border-color .18s var(--ease)}
.card:hover{transform:translateY(-3px);border-color:var(--lime)}
.card-media{overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px}
.card-body h3{font-size:19px;line-height:1.4;margin-bottom:10px}
.card-body p{font-size:14px;line-height:1.7;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--ink-700);font-size:12.5px;color:var(--ink-500)}
.card-meta .arrow{color:var(--lime);transition:transform .18s var(--ease)}
.card:hover .card-meta .arrow{transform:translateX(4px)}

/* ===== 左卡右列表 ===== */
.split{display:grid;grid-template-columns:5fr 7fr;gap:28px;align-items:start}
.card-stack{display:grid;gap:22px}
.row-list{border-top:1px solid var(--ink-700)}
.row{display:flex;align-items:center;gap:18px;padding:18px 16px;border-bottom:1px solid var(--ink-700);transition:background .18s var(--ease)}
.row:hover{background:var(--ink-800)}
.row-name{flex:none;width:168px;font-weight:600;font-size:15.5px;transition:color .18s var(--ease)}
.row:hover .row-name{color:var(--lime)}
.row-desc{flex:1;font-size:14px;color:var(--ink-500);line-height:1.6}
.row-meta{flex:none;display:flex;flex-direction:column;align-items:flex-end;gap:2px;font-size:13px;color:var(--coral)}
.row-arrow{flex:none;color:var(--ink-500);transition:transform .18s var(--ease),color .18s var(--ease)}
.row:hover .row-arrow{transform:translateX(4px);color:var(--lime)}

/* ===== 横向速览 ===== */
.scroller{display:flex;gap:20px;overflow-x:auto;padding:4px 4px 16px;scroll-snap-type:x mandatory}
.scroll-card{flex:none;width:288px;scroll-snap-align:start;background:var(--ink-800);border:1px solid var(--ink-700);border-radius:var(--radius-card);padding:22px;transition:border-color .18s var(--ease),transform .18s var(--ease)}
.scroll-card:hover{border-color:var(--lime);transform:translateY(-3px)}
.scroll-card h3{font-size:18px;margin-bottom:6px}
.scroll-card .stage{font-size:13px;color:var(--ink-500);margin-bottom:16px}
.progress{height:6px;border-radius:999px;background:var(--ink-700);overflow:hidden}
.progress i{display:block;height:100%;background:var(--lime);border-radius:999px}
.scroll-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:13px;color:var(--ink-500)}
.scroll-foot b{color:#fff;font-weight:600;font-family:var(--font-num);letter-spacing:.02em}

/* ===== 纸白阅读区 ===== */
.paper-wrap{background:var(--paper);color:var(--text-1);border-radius:24px;padding:56px}
.paper-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.paper-wrap h2{font-size:clamp(22px,2.6vw,32px);color:var(--text-1);margin:10px 0 18px}
.paper-wrap .eyebrow{color:#5c7a12}
.paper-wrap p{color:var(--text-2);font-size:16px;line-height:1.85}
.paper-wrap .paper-media{border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-2)}
.paper-wrap .paper-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.paper-list{margin-top:22px;display:grid;gap:12px}
.paper-list li{display:flex;gap:10px;font-size:15px;color:var(--text-1);line-height:1.7}
.paper-list li::before{content:"";flex:none;width:8px;height:8px;margin-top:9px;background:var(--lime);border-radius:2px}

/* ===== 数据看板 ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{background:var(--ink-800);border:1px solid var(--ink-700);border-radius:var(--radius-card);padding:24px}
.stat .value{font-family:var(--font-num);font-size:40px;line-height:1;color:var(--lime);font-weight:700}
.stat .unit{font-size:14px;color:var(--ink-500);margin-left:6px;font-family:var(--font-cn)}
.stat .label{margin-top:12px;font-size:14px;color:#C3C8D0}
.stat .sub{margin-top:6px;font-size:12.5px;color:var(--ink-500)}

/* ===== FAQ ===== */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-layout .faq-side h2{font-size:clamp(22px,2.6vw,32px);margin:10px 0 14px}
.faq-layout .faq-side p{color:var(--ink-500);font-size:15px}
.faq-item{border:1px solid var(--ink-700);border-radius:14px;margin-bottom:12px;overflow:hidden;background:var(--ink-900);transition:border-color .18s var(--ease)}
.faq-item.is-open{border-color:var(--ink-700)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;padding:18px 20px;font-size:17px;font-weight:500;color:#fff}
.faq-q .sign{flex:none;width:22px;height:22px;position:relative;color:var(--lime)}
.faq-q .sign::before,.faq-q .sign::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.faq-q .sign::before{left:3px;top:10px;width:16px;height:2px}
.faq-q .sign::after{left:10px;top:3px;width:2px;height:16px}
.faq-item.is-open .sign::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{padding:0 20px 20px 23px;font-size:15px;line-height:1.85;color:var(--ink-500);border-left:3px solid transparent}
.faq-item.is-open .faq-a-inner{border-left-color:var(--lime)}

/* ===== 分类互链 ===== */
.cat-links{display:flex;flex-wrap:wrap;gap:12px}
.cat-pill{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border:1px solid var(--ink-700);border-radius:999px;font-size:14px;color:#fff;transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease)}
.cat-pill:hover{border-color:var(--lime);color:var(--lime)}
.cat-pill.is-current{background:var(--ink-800);color:var(--ink-500);border-color:var(--ink-700);pointer-events:none}
.cat-pill .dot{width:6px;height:6px;border-radius:50%;background:var(--lime)}
.cat-pill.is-current .dot{background:var(--ink-500)}

/* ===== CTA 条 ===== */
.cta-band{margin-top:32px;background:var(--ink-800);border:1px solid var(--ink-700);border-radius:20px;padding:34px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-40px;top:-40px;width:220px;height:180px;background:linear-gradient(120deg,rgba(200,255,46,.09),rgba(200,255,46,0));transform:skewX(-18deg)}
.cta-band h3{font-size:22px;margin-bottom:8px}
.cta-band p{font-size:14px;color:var(--ink-500);margin:0}
.cta-actions{display:flex;gap:12px;flex:none;position:relative;z-index:1}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-900);border-top:1px solid var(--ink-700);margin-top:88px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--ink-500);line-height:1.8;max-width:320px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:#fff}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--ink-500);transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-contact li{font-size:14px;color:var(--ink-500)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:48px;padding:20px 0 28px;border-top:1px solid var(--ink-700);font-size:13px;color:var(--ink-500)}

/* ===== 响应式 ===== */
@media (max-width:1280px){
  .container{padding:0 28px}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .split{grid-template-columns:1fr}
  .paper-grid{grid-template-columns:1fr;gap:32px}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
  .paper-wrap{padding:40px 32px}
}
@media (max-width:980px){
  .header-inner{height:60px}
  .header-cta{display:none}
  .nav-toggle{display:flex}
  .main-nav{position:fixed;left:0;right:0;top:60px;bottom:0;margin:0;background:var(--ink-900);border-top:1px solid var(--ink-700);padding:8px 20px 40px;overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);z-index:79}
  body.nav-open .main-nav{opacity:1;visibility:visible;transform:none}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav li{border-bottom:1px solid var(--ink-700)}
  .main-nav a{display:block;padding:15px 0;font-size:16px;color:#fff}
  .main-nav a::after{display:none}
  .main-nav a.is-active{color:var(--lime)}
  .nav-drawer-cta{display:block;margin-top:24px}
  .nav-drawer-cta .btn{width:100%}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .page-hero{padding:32px 0 48px}
  .lead{font-size:16.5px}
  .section{padding:44px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-head .head-right{align-items:flex-start;text-align:left}
  .row{flex-wrap:wrap;gap:8px 14px;padding:16px 12px}
  .row-name{width:100%}
  .row-desc{width:100%;flex:none}
  .row-meta{flex-direction:row;align-items:center;gap:10px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .paper-wrap{padding:32px 22px;border-radius:18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .site-footer{margin-top:56px;padding-top:48px}
}
@media (max-width:560px){
  .page-hero h1{font-size:30px}
  .card-body{padding:16px}
  .stats{grid-template-columns:1fr}
  .stat .value{font-size:34px}
  .scroll-card{width:250px}
  .btn-lg{width:100%}
  .hero-chips .chip{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .card:hover,.scroll-card:hover,.btn-primary:hover{transform:none}
  .card:hover .card-media img{transform:none}
}

/* roulang page: category4 */
:root{
  --ink-950:#0B0D10;
  --ink-900:#111419;
  --ink-800:#181C23;
  --ink-700:#242A33;
  --ink-500:#6B7480;
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --line-paper:#E3DFD6;
  --text-1:#10131A;
  --text-2:#5A6270;
  --lime:#C8FF2E;
  --lime-600:#A8E01F;
  --coral:#FF5A3C;
  --ok:#3FD68C;
  --warn:#FFB020;
  --r-card:16px;
  --r-img:12px;
  --r-chip:6px;
  --r-input:10px;
  --shadow-1:0 1px 2px rgba(16,19,26,.06);
  --shadow-2:0 18px 40px -24px rgba(16,19,26,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  --font-num:"Barlow Condensed","Oswald","DIN Alternate",ui-sans-serif,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-950);
  color:#fff;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
::selection{background:var(--lime);color:var(--ink-950)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--ink-950)}
::-webkit-scrollbar-thumb{background:var(--ink-700);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:#2F3844}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1280px){.container{padding:0 48px}}

.num{font-family:var(--font-num);letter-spacing:.02em;font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--ink-900);
  border-bottom:1px solid var(--ink-700);
  transition:box-shadow var(--t);
}
.site-header.is-stuck{box-shadow:0 10px 30px -22px rgba(0,0,0,.9)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height var(--t)}
.site-header.is-stuck .header-inner{height:64px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  display:grid;place-items:center;width:38px;height:38px;border-radius:11px;
  background:var(--lime);color:var(--ink-950);font-weight:900;font-size:15px;letter-spacing:0;
}
.logo-text{display:flex;flex-direction:column;line-height:1.16}
.logo-text b{font-size:16px;font-weight:800;letter-spacing:.02em}
.logo-text span{font-size:11.5px;color:var(--ink-500);letter-spacing:.18em}
.main-nav{flex:1;display:flex;justify-content:flex-end}
.main-nav ul{display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.main-nav a{
  position:relative;display:inline-block;padding:6px 0;
  color:var(--ink-500);font-size:15px;transition:color var(--t);white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:#fff;font-weight:600}
.main-nav a.is-active::after{transform:scaleX(1)}
.header-cta{flex:none}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--ink-700);place-items:center;flex:none;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px;
  transition:transform var(--t),top var(--t);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg)}

.mobile-drawer{background:var(--ink-950);border-bottom:1px solid var(--ink-700);padding:8px 20px 22px}
.mobile-drawer nav{display:grid}
.mobile-drawer nav a{
  display:flex;align-items:center;height:48px;font-size:16px;
  border-bottom:1px solid var(--ink-700);color:#E7EAF0;
}
.mobile-drawer nav a.is-active{color:var(--lime)}
.drawer-cta{margin-top:18px;width:100%}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-primary{background:var(--lime);color:var(--ink-950)}
.btn-primary:hover{background:var(--lime-600);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink-700);color:#fff}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime)}
.btn-ghost:active{transform:translateY(1px)}
.btn-link{color:var(--ink-500);padding:0;height:auto;gap:6px}
.btn-link:hover{color:var(--lime)}
.btn-link .arrow{transition:transform var(--t)}
.btn-link:hover .arrow{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.on-light .btn-ghost{border-color:#D8D3C8;color:var(--text-1)}
.on-light .btn-ghost:hover{border-color:var(--text-1);color:var(--text-1)}
.on-light .btn-link{color:var(--text-2)}
.on-light .btn-link:hover{color:var(--text-1)}

/* ---------- chips ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:var(--r-chip);
  background:var(--ink-800);color:var(--ink-500);
  font-size:12.5px;line-height:1.4;white-space:nowrap;
}
.chip--lime{background:transparent;border:1px solid rgba(200,255,46,.45);color:var(--lime)}
.chip--time{background:transparent;border:1px solid rgba(255,90,60,.4);color:var(--coral)}
.chip--num{font-family:var(--font-num)}
.on-light .chip{background:#EDEAE2;color:var(--text-2)}

/* ---------- breadcrumb ---------- */
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding:20px 0 0;font-size:13px;color:var(--ink-500);
}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.55}
.crumb .current{color:var(--coral)}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;padding:26px 0 76px;background:var(--ink-950)}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
}
.cat-hero::after{
  content:"";position:absolute;top:-140px;right:-160px;width:540px;height:280px;
  background:linear-gradient(90deg,rgba(200,255,46,.12),rgba(200,255,46,0));
  transform:rotate(-18deg);pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
  padding-top:26px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;color:var(--lime);
  font-family:var(--font-num);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);display:inline-block}
.eyebrow--dark{color:#5D7A12}
.eyebrow--dark::before{background:#5D7A12}
.cat-hero h1{
  margin:16px 0 0;
  font-size:clamp(30px,5vw,52px);line-height:1.22;font-weight:800;letter-spacing:.01em;
}
.cat-hero h1 em{font-style:normal;color:var(--lime)}
.hero-lead{margin-top:18px;max-width:620px;font-size:18px;line-height:1.75;color:#C3C9D2}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;aspect-ratio:16/10;border:1px solid var(--ink-700)}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.hero-media:hover img{transform:scale(1.03)}
.hero-stamp{
  position:absolute;right:16px;bottom:16px;
  padding:7px 11px;border:1px solid var(--lime);border-radius:var(--r-chip);
  background:rgba(11,13,16,.76);color:var(--lime);
  font-size:12.5px;letter-spacing:.1em;font-family:var(--font-num);
}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section--tight{padding:64px 0 88px}
.section--paper{background:var(--paper);color:var(--text-1)}
.section--ink{background:var(--ink-950)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.section-head h2{margin:10px 0 0;font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:800}
.section-head p{font-size:14px;color:var(--ink-500);max-width:420px}
.on-light .section-head p{color:var(--text-2)}

/* ---------- prep steps ---------- */
.prep-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:start}
.prep-intro{margin-top:16px;font-size:16.5px;line-height:1.85;color:var(--text-2);max-width:560px}
.steps{display:grid;gap:14px;margin-top:32px}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:20px;align-items:start;
  padding:22px 24px;background:var(--paper-2);
  border:1px solid var(--line-paper);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D6D1C6}
.step-num{
  display:grid;place-items:center;width:56px;height:56px;border-radius:14px;
  background:var(--lime);color:var(--ink-950);
  font-family:var(--font-num);font-size:26px;font-weight:700;
}
.step h3{font-size:19px;font-weight:700;line-height:1.45}
.step p{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--text-2)}
.prep-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  background:var(--paper-2);border:1px solid var(--line-paper);box-shadow:var(--shadow-1);
}
.prep-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 320ms var(--ease)}
.prep-media:hover img{transform:scale(1.03)}
.prep-media figcaption{padding:14px 18px 18px;font-size:12.5px;line-height:1.7;color:var(--text-2)}
.prep-note{
  margin-top:20px;padding:18px 20px;border-radius:14px;
  background:#EDEAE2;border-left:3px solid var(--coral);
  font-size:14px;line-height:1.8;color:var(--text-2);
}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:320px 1fr;gap:56px;align-items:start}
.faq-side h2{margin:12px 0 0;font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:800}
.faq-side p{margin-top:16px;font-size:15px;line-height:1.85;color:var(--ink-500)}
.faq-list{display:grid;gap:12px}
.faq-item{
  border:1px solid var(--ink-700);border-radius:14px;background:var(--ink-900);
  overflow:hidden;transition:background var(--t),border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:#333B47}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 20px;text-align:left;font-size:17px;font-weight:600;line-height:1.55;color:#fff;
  transition:color var(--t);
}
.faq-q:hover{color:var(--lime)}
.faq-icon{position:relative;width:16px;height:16px;flex:none;color:#fff}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform var(--t),opacity var(--t);
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-a{display:none;padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--ink-500)}
.faq-item.is-open{background:var(--ink-800);box-shadow:inset 3px 0 0 var(--lime)}
.faq-item.is-open .faq-q{color:var(--lime)}
.faq-item.is-open .faq-a{display:block}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item.is-open .faq-icon{color:var(--lime)}

/* ---------- checklist ---------- */
.check-wrap{margin-top:36px}
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.check-item{
  position:relative;display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;background:var(--paper-2);
  border:1px solid var(--line-paper);border-radius:14px;cursor:pointer;
  box-shadow:var(--shadow-1);transition:border-color var(--t),transform var(--t);
}
.check-item:hover{border-color:#CFC9BC;transform:translateY(-2px)}
.check-item input{position:absolute;opacity:0;width:0;height:0}
.check-box{
  position:relative;flex:none;width:20px;height:20px;margin-top:2px;
  border:1.5px solid #C9C4B8;border-radius:6px;background:#fff;
  transition:background var(--t),border-color var(--t);
}
.check-item input:checked + .check-box{background:var(--lime);border-color:var(--lime)}
.check-item input:checked + .check-box::after{
  content:"";position:absolute;left:6px;top:2px;width:5px;height:10px;
  border-right:2px solid var(--ink-950);border-bottom:2px solid var(--ink-950);
  transform:rotate(45deg);
}
.check-item input:focus-visible + .check-box{outline:2px solid var(--lime);outline-offset:2px}
.check-text{font-size:15px;line-height:1.7;color:var(--text-1)}
.check-item input:checked ~ .check-text{color:var(--text-2)}
.check-foot{
  margin-top:24px;display:flex;align-items:center;justify-content:space-between;
  gap:20px;flex-wrap:wrap;padding-top:22px;border-top:1px solid var(--line-paper);
}
.check-foot p{font-size:14px;color:var(--text-2);max-width:640px}

/* ---------- related categories ---------- */
.cat-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.cat-pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 19px;border-radius:999px;
  border:1px solid var(--ink-700);background:var(--ink-900);
  font-size:15px;color:#fff;transition:all var(--t);
}
.cat-pill:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.cat-pill .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);flex:none}
.cat-pill.is-current{
  background:var(--ink-800);color:var(--ink-500);border-color:var(--ink-700);
  pointer-events:none;
}
.cat-pill.is-current .dot{background:var(--ink-500)}
.home-pill{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  font-size:14px;color:var(--ink-500);
}
.home-pill:hover{color:var(--lime)}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-800);border:1px solid var(--ink-700);border-radius:20px;
  padding:34px 36px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.022) 0 2px,transparent 2px 11px);
}
.cta-band h2{position:relative;font-size:clamp(20px,2.2vw,26px);line-height:1.35;font-weight:800}
.cta-band p{position:relative;margin-top:10px;font-size:14px;color:var(--ink-500);max-width:520px}
.cta-actions{position:relative;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);border-top:1px solid var(--ink-700);padding:64px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:var(--ink-500);max-width:360px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--ink-500);transition:color var(--t)}
.footer-col a:hover{color:var(--lime)}
.footer-contact li{font-size:14px;color:var(--ink-500);line-height:1.7}
.footer-bottom{
  margin-top:52px;padding:20px 0;border-top:1px solid var(--ink-700);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-500);
}

/* ---------- responsive ---------- */
@media(max-width:1100px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-media{order:2}
  .prep-grid{grid-template-columns:1fr;gap:36px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:1023px){
  .main-nav{display:none}
  .header-cta{display:none}
  .nav-toggle{display:grid;margin-left:auto}
  .header-inner{gap:16px}
}
@media(max-width:768px){
  .section{padding:56px 0}
  .section--tight{padding:44px 0 56px}
  .cat-hero{padding:16px 0 52px}
  .hero-chips{gap:8px}
  .checklist{grid-template-columns:1fr}
  .step{grid-template-columns:1fr;gap:14px;padding:18px}
  .step-num{width:48px;height:48px;font-size:22px}
  .faq-q{font-size:16px;padding:16px}
  .cta-band{padding:26px 22px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{margin-top:36px}
  .hero-stamp{right:12px;bottom:12px;font-size:12px}
}
@media(max-width:560px){
  body{font-size:16px}
  .cat-hero h1{font-size:30px}
  .hero-actions .btn{width:100%}
  .section-head h2{font-size:22px}
  .btn-lg{height:48px}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .step:hover,.check-item:hover,.cat-pill:hover,.hero-media:hover img,.prep-media:hover img{transform:none}
}