/* roulang page: index */
:root{
  --brand:#16D6C7;
  --brand-soft:#7CF3E6;
  --accent:#FF8A3D;
  --lime:#D8FF4D;
  --dark:#0D1418;
  --dark-2:#151D22;
  --light:#F4F7F5;
  --white:#FFFFFF;
  --ink:#10201C;
  --ink-soft:#5F6F6A;
  --ink-dark:#EDF7F4;
  --ink-dark-soft:#A8B6B2;
  --line-dark:rgba(255,255,255,.08);
  --line-light:rgba(16,32,28,.10);
  --r-xl:22px;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:10px;
  --r-xs:7px;
  --shadow-dark:0 20px 60px rgba(0,0,0,.35);
  --shadow-light:0 10px 30px rgba(16,32,28,.08);
  --sidebar-w:240px;
  --maxw:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--light);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3;}
h1{font-size:clamp(2rem,3.6vw,3.4rem);line-height:1.18;}
h2{font-size:clamp(1.5rem,2.4vw,2.1rem);}
h3{font-size:1.2rem;line-height:1.45;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 布局骨架 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--dark);border-right:1px solid var(--line-dark);
  display:flex;flex-direction:column;padding:26px 18px 22px;z-index:60;
}
.content{margin-left:var(--sidebar-w);display:flex;flex-direction:column;min-height:100vh;}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 30px;}

/* ---------- 侧栏品牌与导航 ---------- */
.brand{display:flex;align-items:center;gap:12px;padding:0 6px 22px;border-bottom:1px solid var(--line-dark);}
.brand-mark{
  width:42px;height:42px;flex:none;border-radius:13px;display:grid;place-items:center;
  font-size:13px;font-weight:800;letter-spacing:.02em;color:#052A25;
  background:linear-gradient(140deg,var(--brand),var(--brand-soft));
  box-shadow:0 10px 26px rgba(22,214,199,.28);
}
.brand-name{font-size:15px;font-weight:800;color:var(--ink-dark);line-height:1.35;letter-spacing:.01em;}
.brand-name span{display:block;font-size:11px;font-weight:500;color:var(--ink-dark-soft);letter-spacing:.14em;margin-top:2px;}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:22px;}
.nav-label{font-size:11px;letter-spacing:.16em;color:#63756F;margin:6px 12px 8px;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:11px;height:46px;padding:0 13px;
  border-radius:var(--r-sm);color:var(--ink-dark-soft);font-size:15px;font-weight:500;transition:.2s ease;
}
.nav-item svg{width:18px;height:18px;flex:none;opacity:.85;}
.nav-item::before{
  content:"";position:absolute;left:-18px;top:11px;bottom:11px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand);opacity:0;transition:.2s ease;
}
.nav-item:hover{background:rgba(255,255,255,.045);color:var(--ink-dark);}
.nav-item:hover::before{opacity:1;}
.nav-item.active{background:rgba(22,214,199,.10);color:var(--brand);font-weight:700;}
.nav-item.active::before{opacity:1;}
.side-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line-dark);}
.side-note{font-size:12px;line-height:1.7;color:#7E8F8A;margin-bottom:12px;}

/* ---------- 顶部移动导航 ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:70;height:64px;align-items:center;justify-content:space-between;
  padding:0 18px;background:rgba(13,20,24,.96);border-bottom:1px solid var(--line-dark);backdrop-filter:blur(10px);
}
.topbar .brand{padding:0;border:0;}
.topbar .brand-mark{width:36px;height:36px;border-radius:11px;}
.topbar .brand-name{font-size:14px;}
.burger{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid var(--line-dark);display:grid;place-items:center;cursor:pointer;transition:.2s;}
.burger span{display:block;width:18px;height:2px;background:var(--ink-dark);border-radius:2px;transition:.24s;}
.burger span+span{margin-top:4px;}
.burger.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.burger.open span:nth-child(2){opacity:0;}
.burger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.drawer{
  position:fixed;left:0;right:0;top:64px;bottom:0;background:var(--dark);z-index:65;
  padding:26px 22px;display:flex;flex-direction:column;gap:6px;
  opacity:0;transform:translateY(-10px);pointer-events:none;transition:.24s ease;
}
.drawer.open{opacity:1;transform:none;pointer-events:auto;}
.drawer .nav-item{height:56px;font-size:17px;}
.drawer .drawer-cta{margin-top:auto;}

/* ---------- 按钮 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 26px;border-radius:var(--r-md);font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#052A25;box-shadow:0 12px 30px rgba(22,214,199,.28);}
.btn-primary:hover{background:#2AE3D5;transform:translateY(-2px);box-shadow:0 16px 38px rgba(22,214,199,.36);}
.btn-ghost{background:transparent;color:var(--ink-dark);border-color:rgba(237,247,244,.26);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-dark{background:var(--dark);color:var(--ink-dark);}
.btn-dark:hover{background:#101A1F;transform:translateY(-2px);box-shadow:var(--shadow-dark);}
.btn-sm{height:42px;padding:0 18px;font-size:14px;border-radius:var(--r-sm);}
.btn-block{width:100%;}

.chip{
  display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:rgba(255,255,255,.06);border:1px solid var(--line-dark);color:var(--ink-dark);
}
.chip-live{background:rgba(22,214,199,.12);border-color:rgba(22,214,199,.34);color:var(--brand);}
.dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(22,214,199,.16);animation:pulse 2.4s infinite;}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(22,214,199,.16);}50%{box-shadow:0 0 0 8px rgba(22,214,199,.04);}}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-xs);
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.tag-brand{background:rgba(22,214,199,.14);color:#0B7C73;}
.tag-accent{background:rgba(255,138,61,.16);color:#B4560E;}
.tag-lime{background:rgba(216,255,77,.28);color:#4C5A05;}
.tag-dark{background:rgba(255,255,255,.07);color:var(--ink-dark);border:1px solid var(--line-dark);}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-light{background:var(--light);}
.section-white{background:var(--white);}
.section-dark{background:var(--dark);color:var(--ink-dark);}
.section-head{max-width:760px;margin-bottom:46px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.18em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--ink-soft);font-size:16.5px;}
.section-dark .section-head p{color:var(--ink-dark-soft);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;background:var(--dark);color:var(--ink-dark);
  border-radius:0 0 30px 30px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(100deg,#0D1418 0%,rgba(13,20,24,.94) 40%,rgba(13,20,24,.62) 72%,rgba(13,20,24,.86) 100%),
    url('/assets/images/backpic/back-1.png') center right/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:
    linear-gradient(rgba(22,214,199,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(22,214,199,.07) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.hero-inner{position:relative;z-index:2;padding:104px 30px 96px;}
.hero-copy{max-width:720px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px;}
.hero h1{margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17.5px;line-height:1.85;color:#C7D6D1;max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-points{display:flex;flex-wrap:wrap;gap:28px;margin-top:52px;padding-top:30px;border-top:1px solid var(--line-dark);}
.hero-points li{display:flex;flex-direction:column;gap:2px;}
.hero-points b{font-size:1.5rem;font-weight:800;color:var(--brand);line-height:1.2;}
.hero-points span{font-size:13px;color:var(--ink-dark-soft);}

/* ---------- 品牌理念 ---------- */
.story{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.story-body p+p{margin-top:18px;}
.story-body p{color:var(--ink-soft);font-size:16.5px;}
.story-media{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--shadow-light);border:1px solid var(--line-light);}
.story-media img{width:100%;height:420px;object-fit:cover;object-position:center;}
.story-media .media-badge{
  position:absolute;left:18px;bottom:18px;display:flex;align-items:center;gap:10px;
  padding:10px 16px;border-radius:var(--r-sm);background:rgba(13,20,24,.86);
  border:1px solid var(--line-dark);color:var(--ink-dark);font-size:13px;font-weight:600;
  backdrop-filter:blur(6px);
}
.story-list{margin-top:28px;display:grid;gap:12px;}
.story-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink-soft);}
.story-list i{
  flex:none;width:22px;height:22px;border-radius:7px;background:rgba(22,214,199,.14);
  color:#0B7C73;display:grid;place-items:center;font-style:normal;font-size:12px;font-weight:800;margin-top:4px;
}

/* ---------- 精选内容 bento ---------- */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:22px;}
.pick{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--white);border:1px solid var(--line-light);border-radius:var(--r-lg);
  box-shadow:var(--shadow-light);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.pick:hover{transform:translateY(-4px);border-color:rgba(22,214,199,.5);box-shadow:0 18px 44px rgba(16,32,28,.12);}
.pick-media{position:relative;overflow:hidden;}
.pick-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.pick:hover .pick-media img{transform:scale(1.04);}
.pick-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.pick-body h3{font-size:1.15rem;}
.pick-body p{color:var(--ink-soft);font-size:15px;line-height:1.75;}
.pick-more{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:#0B7C73;}
.pick-more svg{width:16px;height:16px;transition:transform .24s ease;}
.pick:hover .pick-more svg{transform:translateX(4px);}
.pick-lg{grid-column:span 4;grid-row:span 2;}
.pick-sm{grid-column:span 2;}
.pick-lg .pick-media{height:284px;}
.pick-lg .pick-body h3{font-size:1.5rem;}
.pick-sm .pick-media{height:132px;}

/* ---------- 最新信息列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.news-item{
  display:flex;flex-direction:column;gap:12px;padding:24px;border-radius:var(--r-lg);
  background:var(--white);border:1px solid var(--line-light);box-shadow:var(--shadow-light);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.news-item:hover{transform:translateY(-3px);border-color:rgba(22,214,199,.5);box-shadow:0 16px 40px rgba(16,32,28,.12);}
.news-top{display:flex;align-items:center;justify-content:space-between;gap:14px;}
.news-item h3{font-size:1.06rem;line-height:1.5;}
.news-item p{color:var(--ink-soft);font-size:14.6px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line-light);}
.news-time{font-size:13px;color:#8A9A95;}
.news-foot .pick-more{font-size:13.5px;}
.empty-state{
  grid-column:1/-1;padding:44px 26px;text-align:center;border-radius:var(--r-lg);
  background:var(--white);border:1px dashed rgba(16,32,28,.2);color:var(--ink-soft);font-size:15px;
}

/* ---------- 数据背书 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.stat{
  padding:26px 24px;border-radius:var(--r-lg);background:var(--dark-2);
  border:1px solid var(--line-dark);transition:.24s ease;
}
.stat:hover{border-color:rgba(22,214,199,.42);box-shadow:0 0 0 1px rgba(22,214,199,.22),0 16px 40px rgba(22,214,199,.10);}
.stat-icon{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(22,214,199,.12);color:var(--brand);
}
.stat-icon svg{width:19px;height:19px;}
.stat b{display:block;font-size:1.85rem;font-weight:800;color:var(--ink-dark);line-height:1.2;}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:var(--ink-dark-soft);line-height:1.7;}

/* ---------- FAQ ---------- */
.faq{max-width:860px;display:grid;gap:12px;}
.faq-item{
  background:var(--white);border:1px solid var(--line-light);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item[open]{border-color:rgba(22,214,199,.55);box-shadow:0 12px 30px rgba(16,32,28,.08);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  min-height:58px;padding:14px 22px;font-size:16px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .q-mark{
  flex:none;width:24px;height:24px;border-radius:8px;background:rgba(22,214,199,.14);
  color:#0B7C73;font-size:12px;font-weight:800;display:grid;place-items:center;
}
.faq-item summary .arrow{margin-left:auto;width:18px;height:18px;color:#8A9A95;transition:transform .24s ease;}
.faq-item[open] summary .arrow{transform:rotate(180deg);color:var(--brand);}
.faq-body{padding:0 22px 22px 60px;color:var(--ink-soft);font-size:15.4px;line-height:1.85;}

/* ---------- 订阅 ---------- */
.subscribe{
  position:relative;overflow:hidden;border-radius:var(--r-xl);padding:56px;
  background:var(--dark);color:var(--ink-dark);box-shadow:var(--shadow-dark);
}
.subscribe::before{
  content:"";position:absolute;inset:0;opacity:.34;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.subscribe::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(13,20,24,.96) 32%,rgba(13,20,24,.66) 100%);
}
.subscribe-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.subscribe h2{margin-bottom:14px;}
.subscribe p{color:#C7D6D1;font-size:16px;}
.sub-form{display:grid;gap:14px;}
.sub-field{display:grid;gap:8px;}
.sub-field label{font-size:13.5px;color:var(--ink-dark-soft);font-weight:600;}
.sub-input{
  height:52px;border-radius:var(--r-md);border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);color:var(--ink-dark);padding:0 18px;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.sub-input::placeholder{color:#7E8F8A;}
.sub-input:focus{outline:none;border-color:var(--brand);background:rgba(255,255,255,.09);box-shadow:0 0 0 3px rgba(22,214,199,.22);}
.sub-check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-dark-soft);line-height:1.7;}
.sub-check input{width:17px;height:17px;flex:none;margin-top:4px;accent-color:var(--brand);}
.sub-note{font-size:13px;color:#7E8F8A;line-height:1.75;}
.sub-error{display:none;font-size:13px;color:var(--accent);}
.sub-error.show{display:block;}

/* ---------- 页脚 ---------- */
.footer{background:var(--dark);color:var(--ink-dark-soft);padding:72px 0 0;margin-top:auto;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer h4{color:var(--ink-dark);font-size:15px;margin-bottom:18px;font-weight:700;}
.footer p{font-size:14px;line-height:1.85;color:#8E9E99;}
.footer-links{display:grid;gap:11px;}
.footer-links a{font-size:14px;color:#8E9E99;transition:color .2s ease,padding-left .2s ease;}
.footer-links a:hover{color:var(--brand);padding-left:4px;}
.footer-bottom{
  margin-top:56px;padding:24px 0;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;color:#75857F;
}
.footer .brand{padding:0 0 20px;border:0;}
.footer .brand-name{font-size:16px;}
.footer-contact{display:grid;gap:11px;}
.footer-contact li{font-size:14px;color:#8E9E99;}
.footer-contact b{color:var(--ink-dark);font-weight:600;}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .hero-inner{padding:92px 26px 84px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px;}
}
@media (max-width:1024px){
  .sidebar{display:none;}
  .content{margin-left:0;}
  .topbar{display:flex;}
  .wrap{padding:0 22px;}
  .section{padding:72px 0;}
  .bento{grid-template-columns:repeat(4,1fr);}
  .pick-lg{grid-column:span 4;grid-row:auto;}
  .pick-sm{grid-column:span 2;}
  .story{grid-template-columns:1fr;gap:36px;}
  .story-media img{height:340px;}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .subscribe{padding:42px 34px;}
  .subscribe-inner{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  h1{font-size:clamp(1.75rem,6vw,2.15rem);}
  h2{font-size:1.5rem;}
  .hero-inner{padding:76px 20px 68px;}
  .hero-sub{font-size:16px;}
  .hero-points{gap:20px;margin-top:38px;padding-top:24px;}
  .hero-points b{font-size:1.25rem;}
  .bento{grid-template-columns:1fr;gap:18px;}
  .pick-lg,.pick-sm{grid-column:span 1;}
  .pick-lg .pick-media,.pick-sm .pick-media{height:200px;}
  .news-grid{grid-template-columns:1fr;}
  .faq-body{padding:0 20px 20px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .section{padding:60px 0;}
  .subscribe{padding:34px 22px;border-radius:var(--r-lg);}
}
@media (max-width:520px){
  .wrap{padding:0 16px;}
  .hero-inner{padding:64px 16px 58px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .btn{width:100%;}
  .stats{grid-template-columns:1fr;}
  .section-head{margin-bottom:32px;}
  .brand-name{font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
    --c-brand:#16D6C7;
    --c-brand-soft:rgba(22,214,199,.10);
    --c-brand-line:rgba(22,214,199,.35);
    --c-accent:#FF8A3D;
    --c-lime:#D8FF4D;
    --c-ink:#0D1418;
    --c-ink-2:#151D22;
    --c-surface:#F4F7F5;
    --c-card:#FFFFFF;
    --c-text:#10201C;
    --c-muted:#5F6F6A;
    --c-text-d:#EDF7F4;
    --c-muted-d:#A8B6B2;
    --c-line-d:rgba(255,255,255,.08);
    --c-line-l:rgba(16,32,28,.10);
    --r-card:18px;
    --r-btn:12px;
    --r-tag:8px;
    --sh-d:0 20px 60px rgba(0,0,0,.35);
    --sh-l:0 10px 30px rgba(16,32,28,.08);
    --font:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;font-family:var(--font);font-size:16px;line-height:1.75;
    color:var(--c-text);background:var(--c-surface);
    font-variant-numeric:tabular-nums;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  button,input{font:inherit}
  :focus-visible{outline:2px solid var(--c-brand);outline-offset:3px;border-radius:6px}

  .shell{display:flex;min-height:100vh;align-items:stretch}
  .side-nav{
    width:240px;flex:0 0 240px;position:sticky;top:0;height:100vh;overflow-y:auto;
    background:var(--c-ink);border-right:1px solid var(--c-line-d);
    padding:24px 16px 22px;display:flex;flex-direction:column;color:var(--c-text-d);
  }
  .brand{display:flex;align-items:center;gap:10px;padding:2px 10px 6px}
  .brand-mark{
    width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:grid;place-items:center;
    background:linear-gradient(140deg,var(--c-brand),#0B8F86);color:#06231F;
    font-weight:800;font-size:14px;letter-spacing:.02em;
  }
  .brand-name{font-size:15px;font-weight:700;line-height:1.35;letter-spacing:.01em}
  .nav-label{
    display:block;margin:22px 12px 10px;font-size:12px;letter-spacing:.16em;
    color:var(--c-muted-d);text-transform:uppercase;
  }
  .nav-item{
    position:relative;display:flex;align-items:center;gap:10px;height:46px;
    padding:0 12px 0 16px;margin-bottom:4px;border-radius:12px;
    color:var(--c-muted-d);font-size:15px;transition:background .22s,color .22s,transform .22s;
  }
  .nav-item svg{width:18px;height:18px;flex:0 0 18px}
  .nav-item::before{
    content:"";position:absolute;left:0;top:50%;width:3px;height:22px;border-radius:0 3px 3px 0;
    background:var(--c-brand);transform:translateY(-50%) scaleY(0);transition:transform .22s;
  }
  .nav-item:hover{color:var(--c-text-d);background:rgba(255,255,255,.05)}
  .nav-item:hover::before{transform:translateY(-50%) scaleY(1)}
  .nav-item.active{background:var(--c-brand-soft);color:var(--c-brand)}
  .nav-item.active::before{transform:translateY(-50%) scaleY(1)}
  .side-foot{margin-top:auto;padding:16px 10px 0;border-top:1px solid var(--c-line-d)}
  .side-foot p{font-size:13px;line-height:1.65;color:var(--c-muted-d);margin-bottom:14px}
  .side-cta{
    display:flex;align-items:center;justify-content:center;height:46px;border-radius:var(--r-btn);
    background:var(--c-brand);color:#06231F;font-weight:700;font-size:14px;
    transition:transform .2s,box-shadow .2s,filter .2s;
  }
  .side-cta:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 12px 30px rgba(22,214,199,.28)}

  .main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;background:var(--c-surface)}
  .topbar{
    display:none;position:sticky;top:0;z-index:60;height:64px;align-items:center;justify-content:space-between;
    padding:0 18px;background:var(--c-ink);border-bottom:1px solid var(--c-line-d);color:var(--c-text-d);
  }
  .topbar .brand-name{font-size:14px}
  .burger{
    width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line-d);background:transparent;
    display:grid;place-items:center;gap:4px;cursor:pointer;color:var(--c-text-d);
  }
  .burger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px}

  .wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 28px}

  .page-hero{
    position:relative;background:var(--c-ink) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color:var(--c-text-d);overflow:hidden;
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background:
      linear-gradient(90deg,rgba(13,20,24,.94),rgba(13,20,24,.72)),
      repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 64px);
  }
  .page-hero .wrap{position:relative;padding-top:52px;padding-bottom:52px}
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted-d);margin-bottom:20px}
  .crumbs a:hover{color:var(--c-brand)}
  .crumbs .sep{color:rgba(255,255,255,.28)}
  .crumbs .current{color:var(--c-brand);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .hero-tag{
    display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:var(--r-tag);
    background:rgba(255,138,61,.16);color:var(--c-accent);font-size:13px;font-weight:700;margin-bottom:18px;
  }
  .hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--c-accent);display:block}
  .page-hero h1{
    font-size:clamp(1.75rem,3.4vw,2.85rem);line-height:1.25;font-weight:800;letter-spacing:-.01em;
    max-width:900px;
  }
  .meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;font-size:14px;color:var(--c-muted-d)}
  .meta-row span{display:inline-flex;align-items:center;gap:8px}
  .meta-row b{color:var(--c-text-d);font-weight:600}

  .article-layout{
    display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;
    padding:56px 0 72px;align-items:start;
  }
  .article-card{
    background:var(--c-card);border:1px solid var(--c-line-l);border-radius:22px;
    box-shadow:var(--sh-l);padding:44px 48px;
  }
  .lead-note{
    display:flex;gap:12px;align-items:flex-start;padding:16px 18px;margin-bottom:30px;
    border:1px solid var(--c-brand-line);background:rgba(22,214,199,.07);border-radius:14px;
    font-size:14.5px;color:#1B3C36;
  }
  .lead-note strong{color:#0E7A70}
  .article-body{font-size:17px;line-height:1.85;color:var(--c-text)}
  .article-body p{margin:0 0 18px}
  .article-body h2{
    position:relative;padding-left:16px;margin:42px 0 16px;
    font-size:1.55rem;line-height:1.35;font-weight:800;letter-spacing:-.01em;
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:.3em;width:5px;height:1.05em;
    border-radius:4px;background:var(--c-brand);
  }
  .article-body h3{font-size:1.18rem;font-weight:700;margin:28px 0 12px;color:#123A33}
  .article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
  .article-body ul li{list-style:disc;margin-bottom:9px}
  .article-body ol li{list-style:decimal;margin-bottom:9px}
  .article-body li::marker{color:var(--c-brand)}
  .article-body blockquote{
    margin:24px 0;padding:16px 22px;border-left:4px solid var(--c-brand);
    background:rgba(22,214,199,.07);border-radius:0 14px 14px 0;color:#1B3C36;
  }
  .article-body blockquote p:last-child{margin-bottom:0}
  .article-body img{border-radius:16px;margin:24px 0;box-shadow:var(--sh-l)}
  .article-body a{color:#0E9C90;border-bottom:1px solid rgba(22,214,199,.45);transition:color .2s,border-color .2s}
  .article-body a:hover{color:#0B7C72;border-color:#0B7C72}
  .article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
  .article-body th,.article-body td{padding:12px 14px;border:1px solid var(--c-line-l);text-align:left}
  .article-body th{background:#EBF4F1;font-weight:700}
  .article-body tr:nth-child(even) td{background:#FAFCFB}
  .article-body pre{
    background:var(--c-ink);color:#DCF5F0;padding:20px 22px;border-radius:16px;
    overflow-x:auto;font-size:14px;line-height:1.7;margin:24px 0;
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  }
  .article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
  .article-body p code,.article-body li code{
    background:rgba(16,32,28,.06);padding:2px 7px;border-radius:6px;font-size:.9em;color:#0E5B54;
  }
  .article-body hr{border:0;border-top:1px solid var(--c-line-l);margin:32px 0}

  .article-tail{
    display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
    margin-top:40px;padding-top:26px;border-top:1px solid var(--c-line-l);
  }
  .tag-list{display:flex;flex-wrap:wrap;gap:8px}
  .tag{
    display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-tag);
    background:rgba(22,214,199,.12);color:#0E7A70;font-size:13px;font-weight:600;
  }
  .tag.orange{background:rgba(255,138,61,.14);color:#C25A1B}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:50px;padding:0 24px;border-radius:var(--r-btn);font-weight:700;font-size:15px;
    border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s;
  }
  .btn-primary{background:var(--c-brand);color:#06231F}
  .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 14px 34px rgba(22,214,199,.3)}
  .btn-ghost{background:transparent;border-color:rgba(255,255,255,.22);color:var(--c-text-d)}
  .btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand);transform:translateY(-2px)}
  .btn-outline{background:transparent;border-color:var(--c-line-l);color:var(--c-text)}
  .btn-outline:hover{border-color:var(--c-brand);color:#0E7C73;transform:translateY(-2px)}

  .side{padding-top:6px}
  .panel{
    background:var(--c-card);border:1px solid var(--c-line-l);border-radius:var(--r-card);
    box-shadow:var(--sh-l);padding:22px 22px 24px;margin-bottom:20px;
  }
  .panel h3{font-size:15px;font-weight:800;letter-spacing:.02em;margin-bottom:14px;display:flex;align-items:center;gap:9px}
  .panel h3::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--c-brand)}
  .toc-list li{margin-bottom:2px}
  .toc-list a{
    display:block;font-size:14px;color:var(--c-muted);padding:8px 10px;border-radius:10px;
    border-left:2px solid transparent;transition:background .2s,color .2s,border-color .2s;
  }
  .toc-list a:hover{background:rgba(22,214,199,.08);color:#0E7C73;border-left-color:var(--c-brand)}
  .link-list li+li{margin-top:6px}
  .link-list a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:12px 14px;border-radius:12px;border:1px solid var(--c-line-l);
    font-size:14.5px;color:var(--c-text);transition:border-color .2s,background .2s,transform .2s;
  }
  .link-list a:hover{border-color:var(--c-brand-line);background:rgba(22,214,199,.06);transform:translateX(2px)}
  .link-list .arrow{color:var(--c-brand);font-weight:700}
  .panel p{font-size:14px;line-height:1.7;color:var(--c-muted)}
  .facts li{display:flex;gap:10px;font-size:14px;color:var(--c-muted);margin-bottom:10px;line-height:1.65}
  .facts li b{color:var(--c-text);font-weight:600}
  .dot{width:8px;height:8px;border-radius:50%;background:var(--c-lime);margin-top:8px;flex:0 0 8px}

  .section-title{max-width:760px;margin-bottom:26px}
  .section-title h2{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:800;line-height:1.35;letter-spacing:-.01em}
  .section-title p{margin-top:10px;color:var(--c-muted);font-size:15.5px}

  .related{padding:0 0 72px}
  .rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
  .rel-card{
    background:var(--c-card);border:1px solid var(--c-line-l);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--sh-l);display:flex;flex-direction:column;
    transition:transform .24s,box-shadow .24s,border-color .24s;
  }
  .rel-card:hover{transform:translateY(-4px);border-color:var(--c-brand-line);box-shadow:0 18px 44px rgba(16,32,28,.12)}
  .rel-card .thumb{aspect-ratio:16/9;overflow:hidden}
  .rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
  .rel-card:hover .thumb img{transform:scale(1.05)}
  .rel-card .body{padding:20px 20px 24px;display:flex;flex-direction:column;flex:1}
  .rel-card h3{font-size:1.05rem;font-weight:700;line-height:1.5;margin-bottom:8px}
  .rel-card p{font-size:14px;color:var(--c-muted);line-height:1.7;flex:1}
  .rel-card .go{margin-top:16px;font-size:14px;font-weight:700;color:#0E7C73;display:inline-flex;align-items:center;gap:6px}
  .rel-card:hover .go{gap:11px}
  .rel-card .go span{transition:transform .2s}

  .cta-band{
    position:relative;overflow:hidden;background:var(--c-ink);
    border-radius:24px;padding:52px 48px;color:var(--c-text-d);margin-bottom:72px;
  }
  .cta-band::after{
    content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
    background:radial-gradient(circle,rgba(22,214,199,.35),transparent 68%);
  }
  .cta-band .inner{position:relative;display:grid;grid-template-columns:1.25fr 1fr;gap:32px;align-items:center}
  .cta-band h2{font-size:clamp(1.4rem,2.5vw,1.95rem);font-weight:800;line-height:1.35}
  .cta-band p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--c-muted-d);max-width:560px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

  .footer{background:var(--c-ink);color:var(--c-text-d);padding:60px 0 26px;margin-top:auto}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
  .footer .brand{padding:0 0 14px}
  .footer p{font-size:14px;line-height:1.75;color:var(--c-muted-d);max-width:330px}
  .footer h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--c-text-d)}
  .footer-links{display:flex;flex-direction:column;gap:10px}
  .footer-links a{font-size:14px;color:var(--c-muted-d);transition:color .2s,transform .2s;display:inline-block}
  .footer-links a:hover{color:var(--c-brand);transform:translateX(3px)}
  .footer-contact li{font-size:14px;color:var(--c-muted-d);margin-bottom:10px;line-height:1.65}
  .footer-contact b{color:var(--c-text-d);font-weight:600}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
    margin-top:40px;padding-top:22px;border-top:1px solid var(--c-line-d);
    font-size:13px;color:var(--c-muted-d);
  }

  .drawer-mask{
    position:fixed;inset:0;background:rgba(4,8,10,.6);backdrop-filter:blur(2px);
    opacity:0;pointer-events:none;transition:opacity .25s;z-index:90;
  }
  .drawer{
    position:fixed;top:0;right:0;width:min(340px,88vw);height:100%;z-index:95;
    background:var(--c-ink);border-left:1px solid var(--c-line-d);color:var(--c-text-d);
    padding:22px 18px;display:flex;flex-direction:column;
    transform:translateX(102%);transition:transform .3s ease;
  }
  .drawer.open{transform:translateX(0)}
  .drawer-mask.open{opacity:1;pointer-events:auto}
  .drawer .close{
    align-self:flex-end;width:38px;height:38px;border-radius:10px;background:transparent;
    border:1px solid var(--c-line-d);color:var(--c-text-d);cursor:pointer;font-size:18px;line-height:1;
  }
  .drawer .nav-item{height:54px;font-size:16.5px;margin-top:6px}
  .drawer .drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--c-line-d)}

  .empty-state{text-align:center;padding:56px 32px}
  .empty-state h2{font-size:1.4rem;font-weight:800;margin-bottom:12px}
  .empty-state p{color:var(--c-muted);font-size:15.5px;margin-bottom:24px}

  @media (max-width:1280px){
    .wrap{padding:0 22px}
    .article-card{padding:38px 34px}
  }
  @media (max-width:1024px){
    .side-nav{display:none}
    .topbar{display:flex}
    .article-layout{grid-template-columns:minmax(0,1fr);padding:40px 0 56px}
    .side{padding-top:0}
    .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .cta-band .inner{grid-template-columns:1fr}
    .cta-actions{justify-content:flex-start}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  }
  @media (max-width:768px){
    .page-hero .wrap{padding-top:36px;padding-bottom:38px}
    .article-card{padding:28px 22px;border-radius:18px}
    .article-body{font-size:16.5px}
    .cta-band{padding:34px 24px;border-radius:18px;margin-bottom:56px}
    .related{padding-bottom:56px}
    .footer{padding:44px 0 22px}
  }
  @media (max-width:640px){
    .wrap{padding:0 16px}
    .rel-grid{grid-template-columns:minmax(0,1fr)}
    .footer-grid{grid-template-columns:1fr}
    .page-hero h1{font-size:1.7rem}
    .article-layout{padding:28px 0 48px}
    .btn{width:100%}
    .cta-actions{width:100%}
  }

/* roulang page: category1 */
:root{
    --teal:#16D6C7;
    --teal-deep:#0FA79B;
    --orange:#FF8A3D;
    --lime:#D8FF4D;
    --ink:#0D1418;
    --card-dark:#151D22;
    --paper:#F4F7F5;
    --card-light:#FFFFFF;
    --text:#10201C;
    --muted:#5F6F6A;
    --text-dark:#EDF7F4;
    --muted-dark:#A8B6B2;
    --line-dark:rgba(255,255,255,.08);
    --line-light:rgba(16,32,28,.10);
    --r-card:18px;
    --r-btn:12px;
    --r-tag:8px;
    --sh-dark:0 20px 60px rgba(0,0,0,.35);
    --sh-light:0 10px 30px rgba(16,32,28,.08);
    --side:240px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:17px;line-height:1.8;color:var(--text);background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%}
  a{color:inherit;text-decoration:none}
  button,input{font:inherit;color:inherit}
  h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  svg{display:block}
  .tnum{font-variant-numeric:tabular-nums}

  /* ---------- 左侧竖向导航 ---------- */
  .side-nav{
    position:fixed;inset:0 auto 0 0;width:var(--side);
    background:var(--ink);border-right:1px solid var(--line-dark);
    padding:24px 18px 20px;display:flex;flex-direction:column;
    z-index:80;overflow-y:auto;
  }
  .nav-brand{display:flex;align-items:center;gap:10px;padding:0 6px 4px}
  .brand-mark{
    width:36px;height:36px;flex:none;border-radius:11px;
    display:grid;place-items:center;font-size:13px;font-weight:800;letter-spacing:.04em;
    background:linear-gradient(140deg,var(--teal),#0B8C83);color:#06231F;
  }
  .brand-name{font-size:15px;font-weight:700;color:var(--text-dark);line-height:1.35}
  .nav-label{font-size:11.5px;letter-spacing:.2em;color:#6C807A;margin:20px 0 8px 10px}
  .nav-item{
    position:relative;display:flex;align-items:center;gap:10px;
    height:46px;padding:0 12px;border-radius:12px;
    color:var(--muted-dark);font-size:15px;transition:background .22s,color .22s;
  }
  .nav-item svg{width:18px;height:18px;flex:none}
  .nav-item::before{
    content:"";position:absolute;left:-18px;top:50%;transform:translateY(-50%);
    width:3px;height:0;background:var(--teal);border-radius:0 3px 3px 0;transition:height .22s;
  }
  .nav-item:hover{background:rgba(255,255,255,.045);color:var(--text-dark)}
  .nav-item:hover::before{height:22px}
  .nav-item.active{background:rgba(22,214,199,.10);color:#FFFFFF}
  .nav-item.active::before{height:26px}
  .nav-item:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
  .nav-cta{
    margin-top:auto;display:block;text-align:center;padding:12px 10px;border-radius:12px;
    background:var(--teal);color:#06231F;font-weight:700;font-size:14.5px;
    transition:transform .2s,box-shadow .2s,filter .2s;
  }
  .nav-cta:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 8px 24px rgba(22,214,199,.28)}
  .nav-cta:focus-visible{outline:2px solid var(--lime);outline-offset:3px}

  /* ---------- 移动端顶栏 ---------- */
  .topbar{
    display:none;position:sticky;top:0;z-index:90;height:64px;
    align-items:center;justify-content:space-between;gap:12px;
    padding:0 16px;background:rgba(13,20,24,.97);
    border-bottom:1px solid var(--line-dark);backdrop-filter:blur(8px);
  }
  .topbar .brand-mark{width:32px;height:32px;border-radius:10px;font-size:12px}
  .topbar-brand{display:flex;align-items:center;gap:9px;min-width:0}
  .topbar-brand .brand-name{font-size:14.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .burger{
    width:42px;height:42px;flex:none;border:1px solid var(--line-dark);border-radius:12px;
    background:transparent;display:grid;place-items:center;gap:0;cursor:pointer;
  }
  .burger span{display:block;width:18px;height:2px;background:var(--text-dark);border-radius:2px;transition:.24s}
  .burger span + span{margin-top:5px}
  .burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .burger.is-open span:nth-child(2){opacity:0}
  .burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  /* ---------- 内容区 ---------- */
  .content{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column}
  .shell{width:100%;max-width:1280px;margin:0 auto;padding:0 36px}
  .section{padding:76px 0}
  .section.tight{padding:56px 0}
  .sec-head{max-width:760px;margin-bottom:36px}
  .sec-head h2{font-size:clamp(1.5rem,2.4vw,2.1rem);line-height:1.3}
  .sec-head p{margin-top:12px;color:var(--muted);font-size:16.5px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;
    letter-spacing:.14em;color:var(--teal-deep);text-transform:uppercase;margin-bottom:14px;
  }
  .eyebrow::before{content:"";width:16px;height:2px;background:var(--teal);border-radius:2px}

  /* ---------- 面包屑 ---------- */
  .crumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    padding:20px 0 0;font-size:13.5px;color:var(--muted);
  }
  .crumb a:hover{color:var(--teal-deep)}
  .crumb .sep{color:rgba(16,32,28,.28)}
  .crumb .now{color:var(--teal-deep);font-weight:600}

  /* ---------- Hero 小号 ---------- */
  .hero-sm{
    position:relative;overflow:hidden;background:var(--ink);color:var(--text-dark);
    padding:72px 0 66px;
  }
  .hero-sm::before{
    content:"";position:absolute;inset:0;
    background-image:url("/assets/images/backpic/back-1.png");
    background-size:cover;background-position:center 34%;
    opacity:.32;
  }
  .hero-sm::after{
    content:"";position:absolute;inset:0;
    background-image:linear-gradient(rgba(22,214,199,.10) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(22,214,199,.10) 1px,transparent 1px);
    background-size:64px 64px;opacity:.5;
    -webkit-mask-image:linear-gradient(100deg,#000,transparent 72%);
    mask-image:linear-gradient(100deg,#000,transparent 72%);
  }
  .hero-sm .shell{position:relative;z-index:2}
  .hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:44px;align-items:end}
  .hero-sm h1{font-size:clamp(1.85rem,3.1vw,2.9rem);line-height:1.2;max-width:16em}
  .hero-sm .lede{margin-top:20px;max-width:44em;color:var(--muted-dark);font-size:17px}
  .badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
  .badge{
    display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:999px;
    font-size:12.5px;font-weight:600;letter-spacing:.03em;
    border:1px solid rgba(22,214,199,.36);color:var(--teal);background:rgba(22,214,199,.08);
  }
  .badge.warm{border-color:rgba(255,138,61,.42);color:var(--orange);background:rgba(255,138,61,.10)}
  .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(216,255,77,.16)}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:52px;padding:0 26px;border-radius:var(--r-btn);
    font-size:15.5px;font-weight:700;cursor:pointer;border:1px solid transparent;
    transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s;
  }
  .btn-primary{background:var(--teal);color:#06231F}
  .btn-primary:hover{filter:brightness(1.07);transform:translateY(-2px);box-shadow:0 14px 34px rgba(22,214,199,.26)}
  .btn-ghost{background:transparent;border-color:rgba(255,255,255,.22);color:var(--text-dark)}
  .btn-ghost:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}
  .btn-ghost-dark{background:transparent;border-color:var(--line-light);color:var(--text)}
  .btn-ghost-dark:hover{border-color:var(--teal);color:var(--teal-deep);transform:translateY(-2px)}
  .btn:focus-visible{outline:2px solid var(--lime);outline-offset:3px}

  .hero-panel{
    background:var(--card-dark);border:1px solid var(--line-dark);border-radius:var(--r-card);
    padding:24px;box-shadow:var(--sh-dark);
  }
  .hero-panel h3{font-size:15px;color:var(--text-dark);letter-spacing:.02em}
  .hero-panel .rows{margin-top:16px;display:grid;gap:14px}
  .hero-panel .row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;
    padding-bottom:12px;border-bottom:1px dashed rgba(255,255,255,.10)}
  .hero-panel .row:last-child{border-bottom:0;padding-bottom:0}
  .hero-panel .k{font-size:13.5px;color:var(--muted-dark)}
  .hero-panel .v{font-size:15px;font-weight:700;color:var(--teal)}

  /* ---------- 非对称双列 ---------- */
  .asym{display:grid;grid-template-columns:minmax(0,1.62fr) minmax(0,1fr);gap:34px;align-items:start}
  .prose p + p{margin-top:18px}
  .prose p{color:#26362F;font-size:17px;line-height:1.85}
  .prose .lead{font-size:18.5px;color:var(--text);font-weight:500}
  .side-card{
    background:var(--card-light);border:1px solid var(--line-light);border-radius:var(--r-card);
    padding:24px;box-shadow:var(--sh-light);
  }
  .side-card + .side-card{margin-top:18px}
  .side-card h3{font-size:16.5px;margin-bottom:16px}
  .fact{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
    padding:12px 0;border-bottom:1px dashed var(--line-light)}
  .fact:last-child{border-bottom:0;padding-bottom:0}
  .fact span{font-size:14px;color:var(--muted)}
  .fact b{font-size:15px;font-weight:700;color:var(--teal-deep)}
  .tag-list{display:flex;flex-wrap:wrap;gap:8px}
  .tag{
    padding:5px 11px;border-radius:var(--r-tag);font-size:13px;font-weight:600;
    background:rgba(22,214,199,.10);color:#0B7C73;border:1px solid rgba(22,214,199,.22);
  }
  .tag.warm{background:rgba(255,138,61,.12);color:#C25A15;border-color:rgba(255,138,61,.26)}

  /* ---------- 卡片组（一大两小） ---------- */
  .card-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:24px}
  .card{
    display:flex;flex-direction:column;overflow:hidden;background:var(--card-light);
    border:1px solid var(--line-light);border-radius:var(--r-card);box-shadow:var(--sh-light);
    transition:transform .24s,box-shadow .24s,border-color .24s;
  }
  .card:hover{transform:translateY(-3px);border-color:rgba(22,214,199,.55);
    box-shadow:0 0 0 1px rgba(22,214,199,.22),0 16px 40px rgba(22,214,199,.14)}
  .card:focus-within{border-color:rgba(22,214,199,.55)}
  .card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#DCE7E3}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
  .card:hover .card-media img{transform:scale(1.045)}
  .card-media::after{content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(13,20,24,0) 40%,rgba(13,20,24,.42));}
  .card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
  .card-body h3{font-size:19px;line-height:1.45}
  .card-body p{font-size:15px;color:var(--muted);
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
  .card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
    font-size:13px;color:var(--muted)}
  .arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--teal-deep)}
  .arrow svg{width:15px;height:15px;transition:transform .22s}
  .card:hover .arrow svg{transform:translateX(4px)}
  .card.big .card-media{aspect-ratio:16/9}
  .card.big .card-body h3{font-size:23px}
  .card.big .card-body{padding:26px 28px 28px}
  .stack{display:grid;gap:24px;grid-template-rows:1fr 1fr}

  /* ---------- 深色节奏板块 ---------- */
  .band{background:var(--ink);color:var(--text-dark);position:relative;overflow:hidden}
  .band::before{
    content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
    background:radial-gradient(circle,rgba(22,214,199,.18),transparent 68%);
  }
  .band .shell{position:relative;z-index:2}
  .band .eyebrow{color:var(--teal)}
  .band h2{color:#fff}
  .band .sec-head p{color:var(--muted-dark)}
  .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
  .step{
    background:var(--card-dark);border:1px solid var(--line-dark);border-radius:var(--r-card);
    padding:24px 22px;transition:border-color .24s,transform .24s,box-shadow .24s;
  }
  .step:hover{transform:translateY(-3px);border-color:rgba(22,214,199,.42);
    box-shadow:0 0 0 1px rgba(22,214,199,.35),0 12px 40px rgba(22,214,199,.12)}
  .step .num{
    display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;
    background:rgba(255,138,61,.14);color:var(--orange);font-size:14px;font-weight:800;
  }
  .step h3{margin-top:16px;font-size:16.5px;color:#fff}
  .step p{margin-top:10px;font-size:14.5px;color:var(--muted-dark);line-height:1.75}

  /* ---------- 要点列表 ---------- */
  .points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
  .point{
    background:var(--card-light);border:1px solid var(--line-light);border-radius:var(--r-card);
    padding:24px;box-shadow:var(--sh-light);transition:transform .24s,border-color .24s;
  }
  .point:hover{transform:translateY(-3px);border-color:rgba(22,214,199,.5)}
  .point h3{font-size:17px;display:flex;align-items:center;gap:10px}
  .point h3 i{width:8px;height:8px;border-radius:50%;background:var(--teal);flex:none}
  .point p{margin-top:12px;font-size:15px;color:var(--muted)}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:14px;max-width:940px}
  .faq-item{
    background:var(--card-light);border:1px solid var(--line-light);
    border-radius:var(--r-card);overflow:hidden;transition:border-color .22s,box-shadow .22s;
  }
  .faq-item.open{border-color:rgba(22,214,199,.5);box-shadow:0 12px 32px rgba(22,214,199,.10)}
  .faq-q{
    width:100%;display:flex;align-items:center;gap:14px;text-align:left;
    padding:18px 22px;background:transparent;border:0;cursor:pointer;
    font-size:16.5px;font-weight:700;line-height:1.5;min-height:60px;
  }
  .faq-q:focus-visible{outline:2px solid var(--teal);outline-offset:-4px}
  .faq-idx{font-size:13px;font-weight:800;color:var(--teal-deep);flex:none;
    font-variant-numeric:tabular-nums;letter-spacing:.04em}
  .faq-sign{margin-left:auto;width:22px;height:22px;flex:none;position:relative}
  .faq-sign::before,.faq-sign::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--teal-deep);border-radius:2px;
    transform:translate(-50%,-50%);transition:transform .24s,opacity .24s;
  }
  .faq-sign::before{width:13px;height:2px}
  .faq-sign::after{width:2px;height:13px}
  .faq-item.open .faq-sign::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
  .faq-item.open .faq-a{max-height:340px}
  .faq-a p{padding:0 22px 22px 58px;font-size:15.5px;color:var(--muted);line-height:1.82}

  /* ---------- CTA / 订阅 ---------- */
  .cta-wrap{
    background:var(--ink);color:var(--text-dark);border-radius:24px;
    padding:52px 48px;position:relative;overflow:hidden;
    display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:44px;align-items:center;
  }
  .cta-wrap::before{
    content:"";position:absolute;left:-100px;bottom:-140px;width:380px;height:380px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,138,61,.20),transparent 70%);
  }
  .cta-wrap > *{position:relative;z-index:2}
  .cta-wrap h2{font-size:clamp(1.5rem,2.4vw,2.05rem);line-height:1.3;color:#fff}
  .cta-wrap p{margin-top:14px;color:var(--muted-dark);font-size:16px}
  .sub-form{display:grid;gap:12px}
  .sub-form .field{display:flex;gap:12px;flex-wrap:wrap}
  .sub-form input[type="email"]{
    flex:1 1 220px;height:52px;padding:0 16px;border-radius:var(--r-btn);
    background:#111A1F;border:1px solid var(--line-dark);color:var(--text-dark);
    transition:border-color .2s,box-shadow .2s;
  }
  .sub-form input[type="email"]::placeholder{color:#7A8B86}
  .sub-form input[type="email"]:focus{
    outline:none;border-color:var(--teal);box-shadow:0 0 0 2px rgba(22,214,199,.45);
  }
  .check{display:flex;align-items:flex-start;gap:9px;font-size:13px;color:var(--muted-dark);line-height:1.6}
  .check input{margin-top:4px;accent-color:var(--teal)}
  .form-note{font-size:13px;color:#7A8B86}

  /* ---------- 页脚 ---------- */
  .footer{background:var(--ink);color:var(--muted-dark);border-top:1px solid var(--line-dark);margin-top:auto}
  .wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 36px}
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:34px;
    padding:56px 0 36px;
  }
  .footer .brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
  .footer .brand-name{color:var(--text-dark)}
  .footer p{font-size:14.5px;line-height:1.8;max-width:34em}
  .footer h4{font-size:15px;color:var(--text-dark);margin-bottom:16px}
  .footer-links{display:grid;gap:10px}
  .footer-links a{font-size:14.5px;transition:color .2s,transform .2s}
  .footer-links a:hover{color:var(--teal);transform:translateX(3px)}
  .footer-contact{display:grid;gap:9px;font-size:14.5px}
  .footer-contact b{color:#CFDDD8;font-weight:600}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    padding:20px 0 28px;border-top:1px solid var(--line-dark);font-size:13px;color:#788A85;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1180px){
    .hero-grid{grid-template-columns:1fr;gap:32px}
    .hero-sm{padding:60px 0 54px}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (max-width:1023px){
    .side-nav{width:280px;transform:translateX(-100%);transition:transform .3s ease;box-shadow:0 0 60px rgba(0,0,0,.5)}
    .side-nav.open{transform:translateX(0)}
    .topbar{display:flex}
    .content{margin-left:0}
    .asym{grid-template-columns:1fr;gap:26px}
    .card-grid{grid-template-columns:1fr}
    .cta-wrap{grid-template-columns:1fr;padding:42px 30px;gap:30px}
  }
  @media (max-width:820px){
    body{font-size:16.5px}
    .shell,.wrap{padding:0 20px}
    .section{padding:56px 0}
    .section.tight{padding:44px 0}
    .points{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 28px}
    .card.big .card-body h3{font-size:20px}
  }
  @media (max-width:640px){
    .hero-sm{padding:46px 0 44px}
    .hero-sm h1{font-size:1.75rem}
    .hero-sm .lede{font-size:15.5px}
    .btn{height:48px;padding:0 20px;font-size:15px}
    .hero-actions{flex-direction:column;align-items:stretch}
    .hero-actions .btn{width:100%}
    .steps{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;gap:6px}
    .faq-a p{padding:0 18px 20px 20px}
    .faq-q{padding:16px 18px;font-size:15.5px}
    .card-body{padding:18px 18px 20px}
    .cta-wrap{padding:34px 22px;border-radius:18px}
  }

/* roulang page: category2 */
:root{
    --brand:#16D6C7;
    --brand-deep:#0B8C82;
    --brand-soft:rgba(22,214,199,.10);
    --brand-line:rgba(22,214,199,.35);
    --signal:#FF8A3D;
    --accent:#D8FF4D;
    --dark:#0D1418;
    --card-dark:#151D22;
    --light:#F4F7F5;
    --ink:#10201C;
    --muted:#5F6F6A;
    --ink-light:#EDF7F4;
    --muted-light:#A8B6B2;
    --line-dark:rgba(255,255,255,.08);
    --line-light:rgba(16,32,28,.10);
    --r-xl:22px;
    --r-lg:18px;
    --r-md:14px;
    --r-sm:10px;
    --sh-dark:0 20px 60px rgba(0,0,0,.35);
    --sh-light:0 10px 30px rgba(16,32,28,.08);
    --sidebar-w:240px;
  }

  *,*::before,*::after{box-sizing:border-box}

  html{scroll-behavior:smooth}

  html body{
    margin:0;
    font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    background:var(--light);
    color:var(--ink);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }

  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,input{font-family:inherit}
  ul{margin:0;padding:0}
  h1,h2,h3,h4{margin:0}

  .wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
  .num{font-variant-numeric:tabular-nums}

  /* ---------- 侧栏导航 ---------- */
  .sidebar{
    position:fixed;
    top:0;left:0;bottom:0;
    width:var(--sidebar-w);
    background:var(--dark);
    border-right:1px solid var(--line-dark);
    padding:26px 18px 22px;
    display:flex;
    flex-direction:column;
    gap:24px;
    overflow-y:auto;
    z-index:60;
  }
  .sidebar .brand{display:flex;align-items:center;gap:10px;padding:4px 8px}
  .brand-mark{
    width:38px;height:38px;flex:none;border-radius:11px;
    display:grid;place-items:center;
    font-size:13.5px;font-weight:800;letter-spacing:.5px;color:#06231F;
    background:linear-gradient(140deg,#29E7D8,#0FB3A8);
    box-shadow:0 8px 20px rgba(22,214,199,.28);
  }
  .brand-name{font-size:15px;font-weight:700;line-height:1.25;color:var(--ink-light)}
  .sidebar .brand-name{max-width:150px}

  .side-nav{display:flex;flex-direction:column;gap:4px}
  .nav-label{font-size:12px;letter-spacing:.18em;color:#6E827C;padding:0 12px 8px}
  .nav-item{
    position:relative;
    display:flex;align-items:center;gap:10px;
    height:46px;padding:0 12px;border-radius:12px;
    color:var(--muted-light);font-size:15px;font-weight:500;
    transition:background .2s ease,color .2s ease;
  }
  .nav-item svg{width:18px;height:18px;flex:none}
  .nav-item::before{
    content:"";position:absolute;left:-18px;top:50%;
    width:3px;height:22px;border-radius:0 3px 3px 0;
    background:var(--brand);
    transform:translateY(-50%) scaleY(.25);
    opacity:0;
    transition:transform .22s ease,opacity .22s ease;
  }
  .nav-item:hover{background:rgba(255,255,255,.05);color:var(--ink-light)}
  .nav-item:hover::before{opacity:1;transform:translateY(-50%) scaleY(1)}
  .nav-item.active{background:var(--brand-soft);color:var(--brand)}
  .nav-item.active::before{opacity:1;transform:translateY(-50%) scaleY(1)}
  .nav-item:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

  .side-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
  .side-foot p{margin:0;font-size:12.5px;line-height:1.6;color:#6E827C}

  /* ---------- 主区域 ---------- */
  .main-wrap{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
  main{flex:1}

  /* ---------- 移动端导航 ---------- */
  .mobile-bar{
    display:none;
    position:sticky;top:0;z-index:70;
    height:64px;padding:0 18px;
    align-items:center;justify-content:space-between;
    background:rgba(13,20,24,.97);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line-dark);
  }
  .mobile-bar .brand-name{font-size:14.5px}
  .hamburger{
    width:44px;height:44px;flex:none;border-radius:12px;
    border:1px solid var(--line-dark);background:rgba(255,255,255,.05);
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
    cursor:pointer;transition:border-color .2s ease,background .2s ease;
  }
  .hamburger:hover{border-color:var(--brand-line)}
  .hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-light);transition:transform .25s ease,opacity .25s ease}
  .hamburger.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .hamburger.open span:nth-child(2){opacity:0}
  .hamburger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

  .drawer{
    position:fixed;inset:0;z-index:80;
    background:var(--dark);
    padding:26px 22px 30px;
    display:none;flex-direction:column;gap:6px;
    overflow-y:auto;
  }
  .drawer.open{display:flex}
  .drawer .brand{margin-bottom:20px}
  .drawer .nav-item{height:56px;font-size:17px;border-radius:14px}
  .drawer .drawer-cta{margin-top:22px}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:52px;padding:0 26px;border-radius:12px;
    font-size:16px;font-weight:600;line-height:1;
    border:1px solid transparent;cursor:pointer;
    transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
    white-space:nowrap;
  }
  .btn:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
  .btn-primary{background:var(--brand);color:#06231F;box-shadow:0 10px 28px rgba(22,214,199,.22)}
  .btn-primary:hover{background:#2AE4D6;transform:translateY(-2px);box-shadow:0 14px 34px rgba(22,214,199,.30)}
  .btn-ghost{background:transparent;color:var(--ink-light);border-color:rgba(255,255,255,.22)}
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
  .btn-outline{background:#fff;color:var(--ink);border-color:var(--line-light)}
  .btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);box-shadow:0 12px 26px rgba(16,32,28,.08)}
  .btn-sm{height:44px;padding:0 18px;font-size:14.5px;border-radius:10px}

  /* ---------- 标签徽章 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:7px;
    height:28px;padding:0 12px;border-radius:8px;
    font-size:13px;font-weight:600;
    background:var(--brand-soft);color:var(--brand);
    border:1px solid rgba(22,214,199,.25);
  }
  .badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(216,255,77,.8)}
  .tag{
    display:inline-flex;align-items:center;
    height:26px;padding:0 10px;border-radius:8px;
    font-size:12.5px;font-weight:600;
    background:rgba(22,214,199,.12);color:var(--brand-deep);
    border:1px solid rgba(22,214,199,.22);
  }
  .tag-warm{background:rgba(255,138,61,.13);color:#C25812;border-color:rgba(255,138,61,.26)}

  /* ---------- Hero ---------- */
  .hero{position:relative;background:var(--dark);color:var(--ink-light);overflow:hidden}
  .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center 35%;opacity:.30;filter:saturate(.85)}
  .hero-grid{
    position:absolute;inset:0;z-index:1;opacity:.45;
    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:58px 58px;
  }
  .hero::after{
    content:"";position:absolute;inset:0;z-index:1;
    background:linear-gradient(100deg,rgba(13,20,24,.97) 0%,rgba(13,20,24,.86) 48%,rgba(13,20,24,.58) 100%);
  }
  .hero-inner{position:relative;z-index:2;padding:62px 0 56px;max-width:900px}
  .hero h1{
    font-size:clamp(2rem,3.4vw,3rem);
    line-height:1.2;font-weight:800;letter-spacing:-.01em;
    color:#fff;margin:18px 0 18px;
  }
  .hero .lead{margin:0;font-size:17.5px;line-height:1.85;color:var(--muted-light);max-width:760px}
  .hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:30px}
  .hero-actions .hint{font-size:13.5px;color:#7F918C}

  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:#8FA09B}
  .crumb a{transition:color .2s ease}
  .crumb a:hover{color:var(--brand)}
  .crumb .sep{opacity:.45}
  .crumb .cur{color:var(--brand);font-weight:600}

  /* ---------- 板块 ---------- */
  .section{padding:96px 0}
  .section-sm{padding:64px 0}
  .section-light{background:var(--light)}
  .section-white{background:#fff}
  .section-dark{background:var(--dark);color:var(--ink-light)}

  .sec-head{max-width:780px;margin-bottom:44px}
  .sec-head h2{
    font-size:clamp(1.65rem,2.4vw,2.2rem);
    line-height:1.32;font-weight:800;color:var(--ink);
    margin:16px 0 14px;letter-spacing:-.005em;
  }
  .sec-head h2.on-dark{color:#fff}
  .sec-head p{margin:0;font-size:16.5px;line-height:1.85;color:var(--muted)}
  .sec-head p.on-dark{color:var(--muted-light)}

  /* ---------- 数据条 ---------- */
  .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  .stat{
    background:#fff;border:1px solid var(--line-light);border-radius:var(--r-lg);
    padding:26px 22px;box-shadow:var(--sh-light);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .stat:hover{transform:translateY(-3px);border-color:var(--brand-line);box-shadow:0 16px 36px rgba(22,214,199,.13)}
  .stat .n{font-size:30px;font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.2}
  .stat .n em{font-style:normal;font-size:17px;color:var(--brand-deep);margin-left:4px;font-weight:700}
  .stat .t{margin:8px 0 0;font-size:13.8px;line-height:1.7;color:var(--muted)}

  /* ---------- 时间线 ---------- */
  .timeline{position:relative;display:flex;flex-direction:column;gap:28px}
  .timeline::before{
    content:"";position:absolute;left:50%;top:10px;bottom:10px;width:2px;
    transform:translateX(-50%);
    background:linear-gradient(180deg,rgba(22,214,199,.55),rgba(22,214,199,.06));
  }
  .tl-item{
    position:relative;width:calc(50% - 46px);
    background:#fff;border:1px solid var(--line-light);border-radius:var(--r-lg);
    padding:24px 24px 22px;box-shadow:var(--sh-light);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .tl-item:hover{transform:translateY(-3px);border-color:var(--brand-line);box-shadow:0 16px 36px rgba(22,214,199,.13)}
  .tl-item:nth-child(odd){align-self:flex-start}
  .tl-item:nth-child(even){align-self:flex-end}
  .tl-item::after{
    content:"";position:absolute;top:36px;width:14px;height:14px;border-radius:50%;
    background:var(--brand);box-shadow:0 0 0 4px rgba(22,214,199,.16);
  }
  .tl-item:nth-child(odd)::after{right:-53px}
  .tl-item:nth-child(even)::after{left:-53px}
  .tl-num{font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--signal)}
  .tl-item h3{font-size:1.22rem;line-height:1.4;font-weight:700;color:var(--ink);margin:10px 0 10px}
  .tl-item p{margin:0;font-size:15.5px;line-height:1.8;color:var(--muted)}

  /* ---------- 横向滚动 ---------- */
  .hscroll-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
  .scroll-hint{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted)}
  .scroll-hint svg{width:16px;height:16px;color:var(--brand)}
  .hscroll{
    display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;
    padding:6px 6px 24px;margin:0 -6px;
    scrollbar-width:thin;
  }
  .hscroll::-webkit-scrollbar{height:8px}
  .hscroll::-webkit-scrollbar-track{background:rgba(16,32,28,.06);border-radius:99px}
  .hscroll::-webkit-scrollbar-thumb{background:rgba(22,214,199,.38);border-radius:99px}
  .hscroll::-webkit-scrollbar-thumb:hover{background:rgba(22,214,199,.6)}

  .hcard{
    flex:0 0 330px;scroll-snap-align:start;
    background:#fff;border:1px solid var(--line-light);border-radius:var(--r-lg);
    overflow:hidden;box-shadow:var(--sh-light);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .hcard:hover{transform:translateY(-4px);border-color:var(--brand-line);box-shadow:0 18px 40px rgba(22,214,199,.15)}
  .hcard .thumb{position:relative;height:172px;overflow:hidden}
  .hcard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
  .hcard:hover .thumb img{transform:scale(1.05)}
  .hcard .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,20,24,0) 45%,rgba(13,20,24,.45) 100%)}
  .hcard .thumb .tag{position:absolute;left:14px;top:14px;z-index:2;background:rgba(255,255,255,.92);border-color:rgba(255,255,255,.6);color:var(--brand-deep)}
  .hcard .body{padding:20px 22px 24px}
  .hcard h3{font-size:1.12rem;line-height:1.45;font-weight:700;color:var(--ink);margin:0 0 10px}
  .hcard p{margin:0;font-size:14.8px;line-height:1.8;color:var(--muted)}
  .hcard .more{
    display:inline-flex;align-items:center;gap:6px;margin-top:16px;
    font-size:14px;font-weight:600;color:var(--brand-deep);
    transition:gap .2s ease,color .2s ease;
  }
  .hcard:hover .more{gap:11px;color:var(--brand-deep)}

  /* ---------- FAQ ---------- */
  .faq{display:flex;flex-direction:column;gap:12px;max-width:920px}
  .faq-item{
    background:#fff;border:1px solid var(--line-light);border-radius:var(--r-md);
    overflow:hidden;
    transition:border-color .22s ease,box-shadow .22s ease;
  }
  .faq-item:hover{border-color:rgba(22,214,199,.28)}
  .faq-item.open{border-color:var(--brand-line);box-shadow:0 12px 30px rgba(22,214,199,.11)}
  .faq-q{
    width:100%;display:flex;align-items:center;gap:14px;
    min-height:58px;padding:15px 20px;
    background:none;border:0;text-align:left;cursor:pointer;
    font-size:16.5px;font-weight:600;line-height:1.6;color:var(--ink);
    transition:color .2s ease;
  }
  .faq-q:hover{color:var(--brand-deep)}
  .faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-3px}
  .faq-q .idx{flex:none;font-size:13.5px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums}
  .faq-q .ico{
    flex:none;margin-left:auto;width:22px;height:22px;border-radius:50%;
    display:grid;place-items:center;color:var(--brand-deep);
    background:rgba(22,214,199,.12);
    transition:transform .26s ease,background .26s ease,color .26s ease;
  }
  .faq-q .ico svg{width:12px;height:12px}
  .faq-item.open .faq-q .ico{transform:rotate(180deg);background:var(--brand);color:#06231F}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
  .faq-a p{margin:0;padding:0 20px 20px 48px;font-size:15.4px;line-height:1.85;color:var(--muted)}

  /* ---------- CTA ---------- */
  .cta{
    position:relative;overflow:hidden;
    background:var(--dark);border-radius:var(--r-xl);
    padding:56px 52px;color:var(--ink-light);
    box-shadow:var(--sh-dark);
  }
  .cta-bg{position:absolute;inset:0;background-size:cover;background-position:center 70%;opacity:.22}
  .cta::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(115deg,rgba(13,20,24,.96) 0%,rgba(13,20,24,.80) 55%,rgba(13,20,24,.62) 100%);
  }
  .cta-inner{position:relative;z-index:2;max-width:720px}
  .cta h2{font-size:clamp(1.55rem,2.3vw,2.1rem);line-height:1.32;font-weight:800;color:#fff;margin:16px 0 14px}
  .cta p{margin:0;font-size:16.2px;line-height:1.85;color:var(--muted-light)}
  .cta-form{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .cta-form input[type="email"]{
    flex:1 1 280px;height:52px;padding:0 16px;
    border-radius:12px;border:1px solid rgba(255,255,255,.16);
    background:rgba(255,255,255,.06);color:#fff;font-size:15.5px;
    transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .cta-form input[type="email"]::placeholder{color:#7F918C}
  .cta-form input[type="email"]:focus{
    outline:none;background:rgba(255,255,255,.09);
    border-color:transparent;box-shadow:0 0 0 2px var(--brand);
  }
  .cta-consent{display:flex;align-items:flex-start;gap:10px;margin-top:16px;font-size:13.5px;line-height:1.7;color:#8FA09B}
  .cta-consent input{width:17px;height:17px;margin-top:3px;flex:none;accent-color:#16D6C7}
  .cta-note{margin-top:14px;font-size:13.5px;color:#7F918C}
  .cta-note.ok{color:var(--brand)}
  .cta-note.err{color:var(--signal)}

  /* ---------- 页脚 ---------- */
  .footer{
    background:var(--dark);color:var(--muted-light);
    border-top:1px solid var(--line-dark);
    padding:64px 0 26px;margin-top:auto;
  }
  .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:38px}
  .footer .brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
  .footer .brand-name{color:#fff;font-size:16px}
  .footer p{margin:0;font-size:14px;line-height:1.8;color:#8FA09B;max-width:340px}
  .footer h4{font-size:15px;font-weight:700;color:#fff;margin:0 0 16px}
  .footer-links{display:flex;flex-direction:column;gap:11px}
  .footer-links a{font-size:14px;color:#A8B6B2;transition:color .2s ease}
  .footer-links a:hover{color:var(--brand)}
  .footer-contact{list-style:none;display:flex;flex-direction:column;gap:11px;font-size:14px;color:#A8B6B2}
  .footer-contact b{color:var(--ink-light);font-weight:600}
  .footer-bottom{
    margin-top:42px;padding-top:22px;border-top:1px solid var(--line-dark);
    display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
    font-size:13px;color:#6E827C;
  }

  /* ---------- 动效 ---------- */
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .65s ease,transform .65s ease}
  .reveal.in{opacity:1;transform:none}

  @media (prefers-reduced-motion:reduce){
    .reveal{opacity:1;transform:none;transition:none}
    html{scroll-behavior:auto}
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1280px){
    .wrap{padding:0 26px}
  }

  @media (max-width:1024px){
    .sidebar{display:none}
    .main-wrap{margin-left:0}
    .mobile-bar{display:flex}
    .section{padding:76px 0}
    .section-sm{padding:56px 0}
    .cta{padding:44px 34px}
    .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:30px}
  }

  @media (min-width:1025px){
    .drawer{display:none !important}
  }

  @media (max-width:900px){
    .timeline{padding-left:34px}
    .timeline::before{left:11px;transform:none}
    .tl-item{width:100% !important;align-self:stretch !important}
    .tl-item:nth-child(odd)::after,
    .tl-item:nth-child(even)::after{left:-30px;right:auto;top:32px}
  }

  @media (max-width:768px){
    .wrap{padding:0 20px}
    .section{padding:60px 0}
    .section-sm{padding:48px 0}
    .sec-head{margin-bottom:34px}
    .stats{grid-template-columns:repeat(2,1fr);gap:14px}
    .stat{padding:20px 18px}
    .stat .n{font-size:25px}
    .hero-inner{padding:48px 0 46px}
    .hero .lead{font-size:16px}
    .hero-actions{margin-top:24px}
    .btn{height:48px;padding:0 20px;font-size:15.5px;width:100%}
    .hero-actions .hint{width:100%}
    .hcard{flex:0 0 280px}
    .faq-a p{padding-left:20px}
    .cta{padding:36px 22px}
    .cta-form input[type="email"]{flex:1 1 100%}
    .footer{padding:52px 0 22px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    .footer p{max-width:none}
    .footer-bottom{flex-direction:column;gap:8px}
  }

  @media (max-width:520px){
    .stats{grid-template-columns:1fr}
    .hcard{flex:0 0 250px}
    .hcard .thumb{height:150px}
    .footer-grid{grid-template-columns:1fr}
    .hero h1{font-size:1.78rem}
  }