/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --brand-600:#0F4C4A;
  --brand-700:#0B3B38;
  --brand-900:#062826;
  --accent-500:#E4632A;
  --accent-400:#F0854B;
  --signal-400:#23D3C0;
  --bg:#F6F3EC;
  --card:#FFFFFF;
  --dark:#0B2D2C;
  --dark-2:#0E3A38;
  --text:#16211F;
  --text-2:#5A6B67;
  --line:#E2DED4;
  --line-strong:#CFC9BC;
  --success:#2F8F6F;
  --warn:#D89B1F;
  --error:#C4453B;
  --r-card:14px;
  --r-img:12px;
  --r-ctl:10px;
  --shadow-1:0 1px 2px rgba(11,45,44,.06);
  --shadow-2:0 16px 32px -16px rgba(11,45,44,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
/* ===================== reset / base ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
figure{margin:0;}
[hidden]{display:none !important;}
.num,time,.stat-num,.news-time{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-600);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:200;}
.skip-link:focus{left:0;}
/* ===================== 布局 ===================== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.14em;
  color:var(--brand-600);background:rgba(15,76,74,.08);
  border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:38px;flex-wrap:wrap;
}
.section-head h2{font-size:32px;line-height:1.35;}
.section-head p.lead{color:var(--text-2);font-size:15px;margin-top:10px;max-width:640px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--brand-600);transition:transform .25s var(--ease),color .25s var(--ease);
}
.text-link:hover{color:var(--accent-500);transform:translateX(4px);}
/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-ctl);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--accent-500);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-1);}
.btn-accent:hover{background:var(--accent-400);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-ghost{background:transparent;color:var(--brand-600);border:1px solid var(--brand-600);}
.btn-ghost:hover{background:rgba(15,76,74,.08);}
.btn-on-dark{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);}
.btn-on-dark:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;}
/* ===================== 顶部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:90;background:rgba(246,243,236,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px -18px rgba(11,45,44,.5);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px;}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:40px;height:40px;border-radius:11px;background:var(--brand-600);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;
  box-shadow:inset 0 0 0 2px rgba(35,211,192,.35);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-name{font-size:17px;font-weight:700;color:var(--brand-700);}
.logo-sub{font-size:12px;color:var(--text-2);letter-spacing:.06em;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:var(--text-2);
  border-radius:8px;transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--brand-600);background:rgba(15,76,74,.06);}
.nav-link.is-active{color:var(--brand-600);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand-600);border-radius:2px;
}
.header-tools{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;color:var(--brand-700);font-size:16px;
  border:1px solid transparent;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.icon-btn:hover{background:#fff;border-color:var(--line);color:var(--brand-600);}
.menu-btn{display:none;}
.search-bar{border-top:1px solid var(--line);background:#fff;}
.search-form{position:relative;display:flex;gap:12px;padding:16px 20px;align-items:center;flex-wrap:wrap;}
.search-form input[type="search"]{
  flex:1;min-width:220px;height:48px;padding:0 16px;border-radius:var(--r-ctl);
  border:1px solid var(--line);background:#fff;font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form input[type="search"]::placeholder{color:var(--text-2);}
.search-form input[type="search"]:focus{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(15,76,74,.18);outline:none;}
.search-msg{font-size:13px;color:var(--text-2);width:100%;}
.search-msg.is-ok{color:var(--success);}
/* ===================== 移动抽屉 ===================== */
.drawer-mask{position:fixed;inset:0;background:rgba(6,40,38,.5);z-index:120;}
.drawer{
  position:fixed;top:0;right:0;width:320px;max-width:88vw;height:100%;
  background:#fff;z-index:130;transform:translateX(102%);
  transition:transform .3s var(--ease);display:flex;flex-direction:column;
  padding:20px;box-shadow:-20px 0 40px -24px rgba(11,45,44,.4);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-title{font-weight:700;color:var(--brand-700);font-size:16px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:20px 0;}
.drawer-link{
  padding:14px 12px;border-radius:var(--r-ctl);font-size:16px;color:var(--text-2);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.drawer-link:hover{background:rgba(15,76,74,.06);color:var(--brand-600);}
.drawer-link.is-active{background:rgba(15,76,74,.08);color:var(--brand-600);font-weight:700;}
.drawer-cta{margin-top:auto;}
body.no-scroll{overflow:hidden;}
/* ===================== Hero ===================== */
.hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  opacity:.42;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(35,211,192,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(35,211,192,.07) 1px,transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),rgba(0,0,0,.1));
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),rgba(0,0,0,.1));
}
.hero-inner{position:relative;z-index:2;padding:92px 20px 88px;max-width:900px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:#fff;background:rgba(35,211,192,.16);border:1px solid rgba(35,211,192,.45);
  border-radius:999px;padding:6px 14px;margin-bottom:22px;letter-spacing:.06em;
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--signal-400);}
.hero h1{font-size:46px;line-height:1.25;font-weight:800;letter-spacing:.01em;}
.hero-sub{margin-top:18px;font-size:19px;color:rgba(255,255,255,.86);}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
  margin-top:52px;padding-top:30px;border-top:1px solid rgba(255,255,255,.18);
}
.hero-stats li{display:flex;flex-direction:column;gap:4px;}
.stat-num{font-size:28px;font-weight:800;color:var(--signal-400);line-height:1.2;}
.stat-label{font-size:14px;color:rgba(255,255,255,.78);}
/* ===================== 品牌故事 ===================== */
.story .grid-2{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.story h2{font-size:32px;margin-bottom:18px;}
.story p{color:var(--text-2);margin-bottom:16px;}
.story .quote{
  margin:26px 0 0;padding:16px 20px;border-left:3px solid var(--brand-600);
  background:rgba(15,76,74,.05);border-radius:0 10px 10px 0;
  font-size:16px;color:var(--brand-700);font-weight:600;
}
.story-media{position:relative;}
.story-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.story-media figcaption{margin-top:12px;font-size:12px;color:var(--text-2);text-align:center;}
/* ===================== 精选内容卡（不对称栅格） ===================== */
.pick-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
  overflow:hidden;display:block;
}
.card:hover{border-color:var(--brand-600);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.card:hover img{transform:scale(1.03);}
.pick-main{grid-column:span 7;padding:0;}
.pick-side{grid-column:span 5;padding:28px;display:flex;flex-direction:column;}
.pick-wide{grid-column:span 12;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:28px 32px;}
.card-media{overflow:hidden;}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s var(--ease);}
.card-body{padding:26px;}
.card-body h3,.pick-side h3,.pick-wide h3{font-size:21px;margin-bottom:12px;}
.card-body p,.pick-side p,.pick-wide p{color:var(--text-2);font-size:15px;line-height:1.85;}
.badge{
  display:inline-block;font-size:12px;font-weight:600;line-height:1;
  color:var(--brand-600);background:rgba(15,76,74,.1);
  border-radius:999px;padding:6px 12px;
}
.badge-signal{color:var(--brand-700);background:rgba(35,211,192,.18);border:1px solid rgba(35,211,192,.5);}
.card-meta{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.pick-wide .pick-wide-text{max-width:760px;}
.pick-wide .arrow{font-size:22px;color:var(--brand-600);transition:transform .25s var(--ease);}
.pick-wide:hover .arrow{transform:translateX(6px);}
/* ===================== 资讯列表（CMS） ===================== */
.news-list{border-top:1px solid var(--line);}
.news-item{border-bottom:1px solid var(--line);}
.news-link{
  display:grid;
  grid-template-columns:1fr auto;
  grid-template-areas:
    "badge time"
    "title time"
    "summary more";
  gap:6px 28px;
  padding:26px 20px;border-radius:12px;
  transition:background-color .25s var(--ease),box-shadow .25s var(--ease);
}
.news-link:hover{background:#fff;box-shadow:inset 2px 0 0 var(--brand-600),var(--shadow-1);}
.news-badge{grid-area:badge;justify-self:start;}
.news-title{
  grid-area:title;font-size:20px;line-height:1.5;margin-top:4px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-summary{
  grid-area:summary;color:var(--text-2);font-size:15px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-time{grid-area:time;font-size:13px;color:var(--text-2);padding-top:6px;white-space:nowrap;}
.news-more{grid-area:more;font-size:14px;font-weight:600;color:var(--brand-600);justify-self:end;}
.news-link:hover .news-more{color:var(--accent-500);}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
  background:#fff;padding:44px 24px;text-align:center;
}
.empty-state i{font-size:30px;color:var(--line-strong);}
.empty-state p{margin:14px 0 20px;color:var(--text-2);font-size:15px;}
/* ===================== 深色数据面板 ===================== */
.panel{
  background:var(--dark);color:#fff;border-radius:20px;padding:52px 48px;
  border:1px solid rgba(255,255,255,.12);position:relative;overflow:hidden;
}
.panel::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border-radius:50%;background:radial-gradient(circle,rgba(35,211,192,.16),transparent 68%);
}
.panel-head{position:relative;z-index:1;max-width:680px;}
.panel-head h2{font-size:30px;color:#fff;}
.panel-head p{margin-top:14px;color:rgba(255,255,255,.76);font-size:15px;}
.panel-grid{
  position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;margin-top:40px;
}
.panel-item{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-card);padding:24px;
}
.panel-item .p-num{display:block;font-size:26px;font-weight:800;color:var(--signal-400);line-height:1.2;}
.panel-item .p-title{display:block;margin-top:10px;font-size:16px;font-weight:700;color:#fff;}
.panel-item .p-desc{display:block;margin-top:8px;font-size:14px;line-height:1.75;color:rgba(255,255,255,.72);}
.panel-item i{color:var(--accent-400);font-size:18px;margin-bottom:12px;display:block;}
/* ===================== 信任条 ===================== */
.trust-row{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  margin-top:36px;padding-top:26px;border-top:1px solid var(--line);
}
.trust-label{font-size:13px;color:var(--text-2);letter-spacing:.08em;}
.trust-logos{display:flex;gap:14px;flex-wrap:wrap;}
.trust-logo{
  font-size:13px;font-weight:600;color:#8b9a96;background:#fff;
  border:1px solid var(--line);border-radius:999px;padding:8px 16px;
  filter:grayscale(1);transition:filter .25s var(--ease),color .25s var(--ease);
}
.trust-logo:hover{filter:grayscale(0);color:var(--brand-600);}
/* ===================== FAQ ===================== */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:18px;text-align:left;
  min-height:64px;padding:14px 4px;font-size:17px;font-weight:600;color:var(--text);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand-600);}
.faq-index{font-size:14px;font-weight:700;color:var(--brand-600);font-variant-numeric:tabular-nums;}
.faq-text{flex:1;}
.faq-icon{
  position:relative;width:24px;height:24px;flex-shrink:0;border-radius:50%;
  background:rgba(15,76,74,.08);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-600);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-item.is-open .faq-q{color:var(--brand-600);}
.faq-a{
  padding:0 4px 26px 32px;border-left:3px solid var(--brand-600);
  margin-left:0;color:var(--text-2);font-size:16px;line-height:1.85;
}
.faq-a p{padding-left:16px;}
/* ===================== CTA / 表单 ===================== */
.cta-box{
  background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center;
  box-shadow:var(--shadow-1);
}
.cta-copy h2{font-size:30px;margin-bottom:14px;}
.cta-copy p{color:var(--text-2);font-size:15px;}
.cta-alt{margin-top:18px;font-size:14px;color:var(--text-2);}
.cta-alt a{color:var(--brand-600);font-weight:600;}
.cta-alt a:hover{color:var(--accent-500);text-decoration:underline;}
.form-row{display:flex;gap:12px;flex-wrap:wrap;}
.form-row input[type="email"]{
  flex:1;min-width:200px;height:48px;padding:0 16px;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-ctl);background:#fff;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-row input[type="email"]::placeholder{color:var(--text-2);}
.form-row input[type="email"]:focus{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(15,76,74,.18);outline:none;}
.form-row input.is-error{border-color:var(--error);}
.form-hint{margin-top:12px;font-size:12px;color:var(--text-2);}
.form-msg{margin-top:10px;font-size:13px;min-height:20px;}
.form-msg.is-ok{color:var(--success);}
.form-msg.is-error{color:var(--error);}
button:disabled{opacity:.4;cursor:not-allowed;}
/* ===================== 页脚 ===================== */
.site-footer{background:var(--dark);color:rgba(255,255,255,.82);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo-name{color:#fff;font-size:17px;}
.footer-brand .logo-sub{color:rgba(255,255,255,.6);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);max-width:320px;}
.footer-col h3{font-size:14px;color:#fff;letter-spacing:.06em;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s var(--ease);}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-col li span{font-size:14px;color:rgba(255,255,255,.7);}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
/* ===================== 移动底部 Tab ===================== */
.tabbar{display:none;}
/* ===================== 响应式 ===================== */
@media (max-width:1023px){
  .main-nav{display:none;}
  .menu-btn{display:inline-flex;}
  .story .grid-2{grid-template-columns:1fr;gap:36px;}
  .pick-main,.pick-side{grid-column:span 12;}
  .panel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-box{grid-template-columns:1fr;gap:28px;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero h1{font-size:36px;}
}
@media (max-width:767px){
  body{padding-bottom:calc(72px + env(safe-area-inset-bottom));}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .section-head h2{font-size:24px;}
  .hero-inner{padding:62px 20px 56px;}
  .hero h1{font-size:29px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1;}
  .hero-stats{grid-template-columns:1fr;gap:14px;margin-top:38px;padding-top:24px;}
  .hero-stats li{flex-direction:row;align-items:baseline;gap:10px;}
  .stat-num{font-size:24px;}
  .story h2,.panel-head h2,.cta-copy h2{font-size:24px;}
  .panel{padding:32px 22px;border-radius:16px;}
  .panel-grid{grid-template-columns:1fr;}
  .pick-wide{flex-direction:column;align-items:flex-start;padding:24px;}
  .pick-wide .arrow{display:none;}
  .news-link{
    grid-template-columns:1fr;
    grid-template-areas:"badge" "title" "summary" "time" "more";
    gap:10px;padding:22px 18px;
  }
  .news-link:hover{box-shadow:inset 2px 0 0 var(--brand-600),var(--shadow-1);}
  .news-time{justify-self:start;padding-top:0;}
  .news-more{justify-self:start;}
  .faq-q{font-size:16px;gap:12px;}
  .faq-a{padding:0 0 22px 26px;}
  .faq-a p{padding-left:12px;}
  .cta-box{padding:28px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .header-tools .btn-primary{display:none;}
  .tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:100;
    background:#fff;border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tab-item{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:3px;height:56px;font-size:12px;color:var(--text-2);position:relative;
    transition:color .2s var(--ease);
  }
  .tab-item i{font-size:18px;}
  .tab-item.is-active{color:var(--brand-600);font-weight:600;}
  .tab-item.is-active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:28px;height:3px;border-radius:0 0 3px 3px;background:var(--brand-600);
  }
}
@media (max-width:520px){
  .logo-sub{display:none;}
  .hero h1{font-size:26px;}
  .card-body{padding:20px;}
  .pick-side{padding:22px;}
  .search-form{padding:14px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --brand-600:#0F4C4A;
  --brand-700:#0B3B38;
  --brand-900:#062826;
  --accent-500:#E4632A;
  --accent-400:#F0854B;
  --signal-400:#23D3C0;
  --bg:#F6F3EC;
  --card:#FFFFFF;
  --dark:#0B2D2C;
  --text:#16211F;
  --muted:#5A6B67;
  --line:#E2DED4;
  --line-strong:#CFC9BC;
  --ok:#2F8F6F;
  --warn:#D89B1F;
  --err:#C4453B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(11,45,44,.06);
  --shadow-2:0 16px 32px -16px rgba(11,45,44,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35}
p{margin:0}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-600);color:#fff;padding:10px 18px;z-index:200}
.skip-link:focus{left:12px;top:12px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:32px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:10px;
  background:var(--brand-600);color:#F6F3EC;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;letter-spacing:0;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:17px;font-weight:700;color:var(--brand-900);letter-spacing:.01em}
.logo-sub{font-size:11px;color:var(--muted);letter-spacing:.06em;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text);
  padding:6px 0;transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;
  transition:transform .25s var(--ease);
}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-600)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:var(--card);display:none;align-items:center;justify-content:center;
  flex-direction:column;gap:4px;transition:border-color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{border-color:var(--brand-600)}
.icon-btn .bar{display:block;width:17px;height:2px;background:var(--brand-900);border-radius:2px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--accent-500);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--brand-600);border-color:var(--brand-600)}
.btn-ghost:hover{background:rgba(15,76,74,.08)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.text-link{color:var(--brand-600);font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:color .2s var(--ease)}
.text-link span{transition:transform .25s var(--ease)}
.text-link:hover{color:var(--accent-500)}
.text-link:hover span{transform:translateX(4px)}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(6,40,38,.45);z-index:80;
  opacity:0;pointer-events:none;transition:opacity .28s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:320px;max-width:86vw;
  background:var(--bg);z-index:90;padding:22px 24px 32px;
  transform:translateX(105%);transition:transform .3s var(--ease);
  border-left:1px solid var(--line);overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:var(--card);color:var(--brand-900);font-size:20px;line-height:1;
}
.drawer-close:hover{border-color:var(--brand-600);color:var(--brand-600)}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  padding:13px 12px;border-radius:10px;font-size:16px;font-weight:500;
  border-left:3px solid transparent;transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.drawer-nav a:hover{background:#fff}
.drawer-nav a.is-active{border-left-color:var(--brand-600);color:var(--brand-600);background:#fff}

/* ---------- article head ---------- */
.article-head{
  background:
    radial-gradient(circle at 1px 1px, rgba(15,76,74,.10) 1px, transparent 0) 0 0/22px 22px,
    linear-gradient(180deg,#FBF9F4 0%, var(--bg) 100%);
  border-bottom:1px solid var(--line);
  padding:36px 0 44px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:22px}
.breadcrumb a{color:var(--muted);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand-600);text-decoration:underline}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb .current{color:var(--text)}
.article-title{
  font-size:44px;line-height:1.25;letter-spacing:.01em;color:var(--brand-900);
  max-width:900px;margin-bottom:16px;
}
.article-sub{
  font-size:16px;color:var(--muted);max-width:760px;line-height:1.8;margin-bottom:22px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--muted)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:rgba(15,76,74,.10);color:var(--brand-600);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-accent{background:rgba(228,99,42,.12);color:var(--accent-500)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong)}
.meta-time{font-variant-numeric:tabular-nums}

/* ---------- article layout ---------- */
.article-wrap{padding:56px 0 72px}
.article-layout{display:flex;gap:56px;justify-content:center;align-items:flex-start}
.article-body{
  width:100%;max-width:760px;min-width:0;
  background:transparent;
}
.article-body h2{
  font-size:28px;line-height:1.4;color:var(--brand-900);
  margin:44px 0 16px;padding-left:16px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;
  border-radius:2px;background:var(--brand-600);
}
.article-body h3{
  font-size:21px;line-height:1.5;color:var(--brand-700);margin:32px 0 12px;
}
.article-body h4{font-size:18px;color:var(--brand-700);margin:24px 0 10px}
.article-body p{font-size:17px;line-height:1.92;margin:0 0 1.15em;color:var(--text)}
.article-body a{color:var(--brand-600);border-bottom:1px solid rgba(15,76,74,.35);transition:color .2s var(--ease),border-color .2s var(--ease)}
.article-body a:hover{color:var(--accent-500);border-color:var(--accent-500)}
.article-body strong{font-weight:700;color:var(--brand-900)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.5em;line-height:1.9}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:#EFEBE1;
  border-left:3px solid var(--brand-600);border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:var(--muted);font-size:16px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);margin:22px 0 10px;width:100%;object-fit:cover}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:12px;color:var(--muted);text-align:center;line-height:1.7}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;background:var(--card);border-radius:var(--radius-img);overflow:hidden}
.article-body thead th{background:#EFEBE1;color:var(--brand-900);font-weight:700;text-align:left}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#FAF8F3}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ---------- aside toc ---------- */
.article-aside{
  display:none;width:240px;flex:0 0 240px;position:sticky;top:92px;
}
.toc{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 18px;box-shadow:var(--shadow-1);
}
.toc-title{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.08em;margin-bottom:12px}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow-y:auto}
.toc-item a{
  display:block;font-size:13.5px;line-height:1.6;color:var(--muted);
  padding:6px 10px;border-left:2px solid transparent;border-radius:0 6px 6px 0;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.toc-item a:hover{color:var(--brand-600);background:#F3F0E8}
.toc-item.toc-h3 a{padding-left:22px;font-size:13px}
.toc-item a.is-current{color:var(--brand-600);border-left-color:var(--brand-600);background:#EFEBE1;font-weight:600}

/* ---------- empty state ---------- */
.notice{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:40px 28px;text-align:center;box-shadow:var(--shadow-1);
}
.notice-icon{
  width:54px;height:54px;margin:0 auto 16px;border-radius:14px;
  border:1px dashed var(--line-strong);display:flex;align-items:center;justify-content:center;
  color:var(--brand-600);font-size:22px;
}
.notice h2{font-size:20px;color:var(--brand-900);margin-bottom:8px}
.notice p{color:var(--muted);font-size:15px;margin-bottom:20px}

/* ---------- article footer blocks ---------- */
.article-foot{margin-top:48px;display:flex;flex-direction:column;gap:34px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding-top:22px;border-top:1px solid var(--line)}
.tag-row .label{font-size:13px;color:var(--muted);font-weight:600}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--card);border:1px solid var(--line);font-size:13px;color:var(--muted);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.tag:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-1px)}
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pn-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;display:flex;flex-direction:column;gap:8px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.pn-card:hover{border-color:var(--brand-600);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.pn-card .dir{font-size:12px;color:var(--muted);letter-spacing:.06em}
.pn-card .title{font-size:16px;font-weight:600;color:var(--brand-900);line-height:1.55}
.pn-card.next{text-align:right;align-items:flex-end}
.section-mini-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;
}
.section-mini-title h2{font-size:22px;color:var(--brand-900)}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.rel-card:hover{border-color:var(--brand-600);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.rel-thumb{aspect-ratio:16/10;overflow:hidden;background:#EFEBE1}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px}
.rel-body h3{font-size:16px;line-height:1.55;color:var(--brand-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.back-row{display:flex;justify-content:center;padding-top:6px}

/* ---------- cta strip ---------- */
.cta-strip{
  margin-top:64px;background:var(--dark);border-radius:18px;padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  border:1px solid rgba(255,255,255,.12);
  background-image:radial-gradient(circle at 1px 1px, rgba(255,255,255,.07) 1px, transparent 0);
  background-size:22px 22px;
}
.cta-strip h2{font-size:26px;color:#fff;margin-bottom:8px}
.cta-strip p{font-size:15px;color:rgba(255,255,255,.72);line-height:1.8;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.45)}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#fff;margin-top:80px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo-mark{background:var(--accent-500);color:#fff}
.footer-brand .logo-name{color:#fff}
.footer-brand .logo-sub{color:rgba(255,255,255,.55)}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:360px}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:52px;padding:22px 0 26px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- tab bar ---------- */
.tab-bar{display:none}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-aside{display:none !important}
}
@media (min-width:1200px){
  .article-aside{display:block}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .icon-btn{display:flex}
  .header-inner{height:64px;gap:18px}
  .logo-mark{width:34px;height:34px;font-size:17px}
  .logo-name{font-size:15px}
}
@media (max-width:900px){
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-title{font-size:34px}
  .article-body h2{font-size:24px}
  .article-body h3{font-size:19px}
  body{font-size:16px}
  .article-body p{font-size:16px}
  .article-body{max-width:100%}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .header-inner{height:56px}
  .header-actions .btn{display:none}
  .article-head{padding:24px 0 32px}
  .article-title{font-size:28px;line-height:1.3}
  .article-wrap{padding:36px 0 48px}
  .article-body h2{font-size:22px;margin:34px 0 14px}
  .prevnext{grid-template-columns:1fr}
  .pn-card.next{text-align:left;align-items:flex-start}
  .rel-grid{grid-template-columns:1fr}
  .cta-strip{padding:32px 24px;border-radius:14px}
  .cta-strip h2{font-size:22px}
  .site-footer{padding-top:46px;margin-top:56px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .tab-bar{
    display:grid;grid-template-columns:repeat(3,1fr);
    position:fixed;left:0;right:0;bottom:0;height:56px;z-index:70;
    background:var(--card);border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tab-item{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:11px;color:var(--muted);position:relative;transition:color .2s var(--ease);
  }
  .tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
  .tab-item::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);width:34px;height:3px;border-radius:0 0 3px 3px;background:var(--brand-600);transition:transform .25s var(--ease)}
  .tab-item.is-active{color:var(--brand-600)}
  .tab-item.is-active::before{transform:translateX(-50%) scaleX(1)}
  body{padding-bottom:72px}
}
@media (max-width:480px){
  .article-title{font-size:25px}
  .footer-grid{grid-template-columns:1fr}
  .logo-sub{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --brand-600:#0F4C4A;
  --brand-700:#0B3B38;
  --brand-900:#062826;
  --accent-500:#E4632A;
  --accent-400:#F0854B;
  --signal-400:#23D3C0;
  --bg:#F6F3EC;
  --card:#FFFFFF;
  --dark:#0B2D2C;
  --text:#16211F;
  --muted:#5A6B67;
  --line:#E2DED4;
  --line-strong:#CFC9BC;
  --ok:#2F8F6F;
  --warn:#D89B1F;
  --err:#C4453B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,45,44,.06);
  --sh-2:0 16px 32px -16px rgba(11,45,44,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --num-font:"Inter","Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--num-font);font-variant-numeric:tabular-nums}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--brand-600);color:#fff;
  display:grid;place-items:center;
  font-weight:700;font-size:17px;letter-spacing:.01em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-name{font-size:16px;font-weight:700;color:var(--brand-700);letter-spacing:.01em}
.logo-sub{font-size:12px;color:var(--muted)}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:12px}
.nav-link{
  position:relative;font-size:15px;color:var(--muted);
  padding:22px 0;transition:color .25s var(--ease);
}
.nav-link:hover{color:var(--brand-600)}
.nav-link.is-active{color:var(--brand-600);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;background:var(--brand-600);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--muted);background:#fff;
  transition:border-color .25s var(--ease),color .25s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{border-color:var(--brand-600);color:var(--brand-600)}
.icon-btn:active{transform:translateY(1px)}
.menu-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;place-items:center;color:var(--brand-700)}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .2s var(--ease),box-shadow .25s var(--ease);
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--accent-500);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--brand-600);border:1px solid var(--brand-600)}
.btn-ghost:hover{background:rgba(15,76,74,.08)}
.btn-light{background:#fff;color:var(--brand-700)}
.btn-light:hover{background:var(--accent-400);color:#fff}
.btn-sm{height:44px;padding:0 18px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;font-size:15px;
}
.text-link span{transition:transform .25s var(--ease)}
.text-link:hover span{transform:translateX(4px)}

/* ============ Hero ============ */
.hero{
  position:relative;isolation:isolate;
  min-height:340px;
  display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  color:#fff;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(6,40,38,.94) 0%,rgba(6,40,38,.86) 55%,rgba(11,59,56,.78) 100%);
  z-index:-1;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.hero-inner{padding:56px 0 60px;max-width:760px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.72);transition:color .25s var(--ease)}
.breadcrumb a:hover{color:#fff}
.hero h1{
  font-size:44px;line-height:1.25;letter-spacing:.01em;font-weight:700;color:#fff;
}
.hero-sub{margin-top:16px;font-size:18px;line-height:1.7;color:rgba(255,255,255,.86);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55)}
.hero .btn-ghost:hover{background:rgba(255,255,255,.14)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tag{
  font-size:13px;padding:6px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.28);color:rgba(255,255,255,.9);
}
.hero-tag.is-signal{border-color:rgba(35,211,192,.65);color:#9CF3E6}

/* ============ Sections ============ */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-title{font-size:30px;line-height:1.35;font-weight:700;color:var(--brand-900);letter-spacing:.01em}
.section-desc{margin-top:12px;color:var(--muted);font-size:16px;max-width:720px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-600);
  background:rgba(15,76,74,.08);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500)}

.prose p{color:var(--muted);margin-top:16px;line-height:1.9}
.prose p:first-of-type{margin-top:0}
.lede{font-size:18px;color:var(--text);line-height:1.85}
.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:16px;color:var(--text)}
.check-list svg{flex:0 0 auto;margin-top:5px;color:var(--brand-600)}

/* Stat strip */
.stat-strip{
  background:var(--dark);color:#fff;border-radius:var(--r-card);
  padding:36px;display:grid;grid-template-columns:repeat(3,1fr);gap:28px;
  border:1px solid rgba(255,255,255,.12);
}
.stat-strip .stat{padding-left:20px;border-left:2px solid rgba(35,211,192,.5)}
.stat-num{font-size:28px;font-weight:700;letter-spacing:.01em;color:#fff}
.stat-label{font-size:14px;color:rgba(255,255,255,.72);margin-top:6px;line-height:1.7}

/* Alternating blocks */
.alt-block{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:72px}
.alt-block:last-child{margin-bottom:0}
.alt-media{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:#fff;
  box-shadow:var(--sh-1);
}
.alt-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s var(--ease)}
.alt-media:hover img{transform:scale(1.03)}
.alt-block.reverse .alt-media{order:2}
.alt-index{
  font-family:var(--num-font);font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--accent-500);margin-bottom:12px;
}
.alt-block h3{font-size:22px;line-height:1.45;font-weight:700;color:var(--brand-900)}
.alt-block p{margin-top:14px;color:var(--muted)}
.mini-list{margin-top:18px;display:grid;gap:10px}
.mini-list li{display:flex;gap:10px;font-size:15px;color:var(--text)}
.mini-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--signal-400);margin-top:11px;flex:0 0 auto}

/* Point cards 2x2 */
.point-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.point-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
}
.point-card:hover{border-color:var(--brand-600);box-shadow:var(--sh-2);transform:translateY(-2px)}
.point-card .badge{margin-bottom:14px}
.point-card h3{font-size:20px;line-height:1.45;font-weight:700;color:var(--brand-900)}
.point-card p{margin-top:12px;color:var(--muted);font-size:16px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(15,76,74,.10);color:var(--brand-600);
}
.badge.is-accent{background:rgba(228,99,42,.12);color:var(--accent-500)}
.badge.is-signal{background:rgba(35,211,192,.16);color:#0C6B60;border:1px solid rgba(35,211,192,.5)}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:340px 1fr;gap:48px;align-items:start}
.faq-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--text);
  transition:color .25s var(--ease),background-color .25s var(--ease);
}
.faq-q:hover{color:var(--brand-600);background:rgba(15,76,74,.03)}
.faq-no{font-family:var(--num-font);font-size:14px;color:var(--brand-600);flex:0 0 24px}
.faq-sign{margin-left:auto;width:24px;height:24px;display:grid;place-items:center;color:var(--brand-600);transition:transform .25s var(--ease)}
.faq-item.is-open .faq-q{color:var(--brand-600)}
.faq-item.is-open .faq-sign{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a-inner{
  margin:0 24px 22px 64px;padding-left:16px;border-left:3px solid var(--brand-600);
  color:var(--muted);font-size:16px;line-height:1.85;
}
.faq-aside{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:28px}
.faq-aside h3{font-size:20px;font-weight:700;color:var(--brand-900);margin-bottom:14px}
.faq-aside p{color:var(--muted);font-size:15px;margin-bottom:20px}

/* CTA */
.cta-band{
  background:var(--dark);color:#fff;border-radius:var(--r-card);
  padding:56px;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;
  border:1px solid rgba(255,255,255,.12);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 64px);
  pointer-events:none;
}
.cta-band h2{font-size:30px;line-height:1.35;font-weight:700;color:#fff}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.78);font-size:16px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:1}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14)}

/* ============ Footer ============ */
.site-footer{background:var(--dark);color:#fff;margin-top:24px;padding-top:72px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand .logo-name{color:#fff}
.footer-brand .logo-sub{color:rgba(255,255,255,.6)}
.footer-brand .logo-mark{background:rgba(255,255,255,.14)}
.footer-brand p{color:rgba(255,255,255,.72);font-size:15px;line-height:1.85;max-width:340px}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;letter-spacing:.04em;margin-bottom:18px}
.footer-col li{margin-bottom:12px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(255,255,255,.7);transition:color .25s var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ Drawer & Tabbar ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(6,40,38,.5);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;background:#fff;z-index:80;
  transform:translateX(100%);transition:transform .3s var(--ease);
  padding:22px;display:flex;flex-direction:column;gap:6px;
  border-left:1px solid var(--line);
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-title{font-size:15px;font-weight:700;color:var(--brand-900)}
.drawer a.drawer-link{
  padding:14px 12px;border-radius:10px;font-size:16px;color:var(--text);
  transition:background-color .25s var(--ease),color .25s var(--ease);
}
.drawer a.drawer-link:hover{background:rgba(15,76,74,.06);color:var(--brand-600)}
.drawer a.drawer-link.is-active{color:var(--brand-600);font-weight:600;background:rgba(15,76,74,.08)}
.drawer .btn{margin-top:18px}

.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:65;
  height:calc(56px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:#fff;border-top:1px solid var(--line);
}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:12px;color:var(--muted);position:relative;
}
.tab-item svg{width:24px;height:24px}
.tab-item.is-active{color:var(--brand-600);font-weight:600}
.tab-item.is-active::before{content:"";position:absolute;top:0;width:28px;height:3px;border-radius:0 0 3px 3px;background:var(--brand-600)}

/* ============ Responsive ============ */
@media (max-width:1279px){
  .section{padding:88px 0}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .menu-toggle{display:grid}
  .header-inner{height:64px}
  .hero h1{font-size:36px}
  .hero-inner{padding:48px 0 52px}
  .alt-block{gap:32px;margin-bottom:56px}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:40px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .stat-strip{grid-template-columns:1fr;gap:22px}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:72px}
  .container{padding:0 18px}
  .header-inner{height:56px;gap:16px}
  .header-cta{display:none}
  .logo-name{font-size:15px}
  .logo-sub{display:none}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px}
  .section-title{font-size:24px}
  .hero{min-height:300px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-inner{padding:36px 0 40px}
  .hero-actions .btn{width:100%}
  .alt-block{grid-template-columns:1fr;gap:22px;margin-bottom:44px}
  .alt-block.reverse .alt-media{order:0}
  .alt-block h3{font-size:19px}
  .point-grid{grid-template-columns:1fr;gap:16px}
  .point-card{padding:22px}
  .faq-q{padding:16px 18px;font-size:16px;gap:12px}
  .faq-a-inner{margin:0 18px 18px 46px;font-size:15px}
  .cta-band{padding:30px 22px}
  .cta-band h2{font-size:23px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding-bottom:32px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;align-items:flex-start;padding-bottom:24px}
  .tabbar{display:flex}
  .site-footer{padding-top:52px}
}
@media (max-width:479px){
  .hero h1{font-size:25px}
  .footer-grid{grid-template-columns:1fr}
  .stat-num{font-size:24px}
}
@media (hover:none){
  .point-card:hover,.alt-media:hover img,.btn-primary:hover{transform:none}
  .text-link:hover span{transform:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --brand-600:#0F4C4A;
  --brand-700:#0B3B38;
  --brand-900:#062826;
  --accent-500:#E4632A;
  --accent-400:#F0854B;
  --signal-400:#23D3C0;
  --bg:#F6F3EC;
  --card:#FFFFFF;
  --dark:#0B2D2C;
  --text:#16211F;
  --muted:#5A6B67;
  --line:#E2DED4;
  --line-strong:#CFC9BC;
  --ok:#2F8F6F;
  --warn:#D89B1F;
  --err:#C4453B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(11,45,44,.06);
  --shadow-2:0 16px 32px -16px rgba(11,45,44,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
h1,h2,h3{margin:0;line-height:1.35;letter-spacing:.01em;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 26px -18px rgba(11,45,44,.45)}
.header-inner{display:flex;align-items:center;gap:32px;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:10px;
  background:var(--brand-600);color:#fff;
  display:grid;place-items:center;
  font-size:19px;font-weight:700;
  box-shadow:0 6px 14px -8px rgba(15,76,74,.7);
}
.logo-text{display:flex;flex-direction:column}
.logo-name{font-size:17px;font-weight:700;line-height:1.25;color:var(--brand-900)}
.logo-sub{font-size:12px;line-height:1.4;color:var(--muted);letter-spacing:.02em}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-link{
  position:relative;
  font-size:15px;color:var(--muted);
  padding:8px 0;
  transition:color .22s var(--ease);
}
.nav-link:hover{color:var(--brand-600)}
.nav-link.is-active{color:var(--brand-600);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--brand-600);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 10px 22px -14px rgba(15,76,74,.85)}
.btn-primary:hover{background:var(--accent-500);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--brand-600);color:var(--brand-600)}
.btn-ghost:hover{background:rgba(15,76,74,.08)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-light{background:#fff;color:var(--brand-700)}
.btn-light:hover{background:var(--accent-400);color:#fff;transform:translateY(-1px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;font-size:15px;transition:transform .24s var(--ease),color .24s var(--ease)}
.link-arrow:hover{color:var(--accent-500);transform:translateX(4px)}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--dark);color:#fff;
  min-height:352px;
  display:flex;align-items:center;
  padding:72px 0 60px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(100deg,rgba(6,40,38,.94) 0%,rgba(11,45,44,.84) 58%,rgba(11,45,44,.72) 100%),
    url(/assets/images/backpic/back-2.png);
  background-size:cover,cover;
  background-position:center,center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 9px);
  opacity:.6;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.72);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.breadcrumb .current{color:#fff}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;margin-bottom:18px;
  border-radius:999px;
  border:1px solid rgba(35,211,192,.55);
  color:#7FF0E2;font-size:12.5px;letter-spacing:.04em;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent-500);box-shadow:0 0 0 3px rgba(228,99,42,.22)}
.page-hero h1{font-size:44px;line-height:1.25;letter-spacing:.01em}
.hero-lede{margin-top:16px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);max-width:640px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);
  font-size:13px;color:rgba(255,255,255,.9);
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section.alt{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;padding:5px 13px;margin-bottom:16px;
  border-radius:999px;background:rgba(15,76,74,.1);
  color:var(--brand-600);font-size:12.5px;font-weight:600;letter-spacing:.05em;
}
.section-title{font-size:30px;line-height:1.35;color:var(--brand-900)}
.section-desc{margin-top:16px;color:var(--muted);font-size:16.5px;line-height:1.9}

.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}
.intro-copy p + p{margin-top:16px}
.intro-copy p{color:var(--muted);font-size:16.5px;line-height:1.95}
.points{margin-top:26px;border-top:1px solid var(--line);padding-top:22px}
.points li{position:relative;padding-left:30px;font-size:15.5px;color:var(--text);margin-bottom:14px;line-height:1.8}
.points li::before{
  content:"";position:absolute;left:0;top:11px;
  width:9px;height:9px;border-radius:2px;background:var(--accent-500);
}
.points li:last-child{margin-bottom:0}
.figure{margin:0}
.figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.figure figcaption{margin-top:12px;font-size:12.5px;color:var(--muted);text-align:center}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:27px;top:14px;bottom:26px;width:2px;
  background:linear-gradient(180deg,var(--brand-600),rgba(15,76,74,.14));
}
.tl-item{position:relative;padding-left:80px;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-node{
  position:absolute;left:0;top:0;
  width:56px;height:56px;border-radius:50%;
  background:#fff;border:2px solid var(--brand-600);
  color:var(--brand-600);
  display:grid;place-items:center;
  font-size:17px;font-weight:700;
  font-variant-numeric:tabular-nums;
  transition:background-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
}
.tl-item:hover .tl-node{background:var(--brand-600);color:#fff;transform:translateY(-2px)}
.tl-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-1);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease),transform .24s var(--ease);
}
.tl-item:hover .tl-body{border-color:var(--brand-600);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;justify-content:space-between}
.tl-body h3{font-size:20px;color:var(--brand-900)}
.tl-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:rgba(228,99,42,.12);
  color:#B84A18;font-size:12.5px;font-weight:600;white-space:nowrap;
}
.tl-body p{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.85}

/* ---------- dark block ---------- */
.dark-block{
  background:var(--dark);color:#fff;
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-card);
  padding:52px 48px;
  position:relative;overflow:hidden;
}
.dark-block::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.1) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.dark-block > *{position:relative;z-index:1}
.dark-block h2{font-size:27px;color:#fff}
.dark-block .dark-lede{margin-top:14px;max-width:760px;color:rgba(255,255,255,.78);font-size:16px;line-height:1.9}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:38px}
.stat{
  border-top:1px solid rgba(255,255,255,.16);
  padding-top:18px;
}
.stat-num{font-size:28px;font-weight:700;color:var(--accent-400);font-variant-numeric:tabular-nums;line-height:1.3}
.stat-label{margin-top:6px;font-size:14px;color:rgba(255,255,255,.78);line-height:1.7}
.dark-note{
  margin-top:30px;padding:18px 20px;
  border-left:3px solid var(--accent-500);
  background:rgba(255,255,255,.06);
  border-radius:0 var(--radius-btn) var(--radius-btn) 0;
  font-size:15px;color:rgba(255,255,255,.9);line-height:1.85;
}

/* ---------- qa grid ---------- */
.qa-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.qa{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 28px;box-shadow:var(--shadow-1);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease),transform .24s var(--ease);
}
.qa:hover{border-color:var(--brand-600);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.qa-index{
  display:inline-block;font-size:13px;font-weight:700;color:var(--brand-600);
  font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.qa h3{font-size:19px;line-height:1.5;margin-top:10px;color:var(--brand-900)}
.qa p{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.85}

/* ---------- cta ---------- */
.cta-block{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:56px 48px;text-align:center;box-shadow:var(--shadow-1);
}
.cta-block h2{font-size:28px;color:var(--brand-900)}
.cta-block p{margin-top:16px;color:var(--muted);font-size:16.5px;max-width:660px;margin-left:auto;margin-right:auto;line-height:1.9}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;margin-top:30px}
.cta-foot{margin-top:20px;font-size:13px;color:var(--muted)}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#fff;padding:72px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);box-shadow:none}
.footer-brand .logo-name{color:#fff}
.footer-brand .logo-sub{color:rgba(255,255,255,.62)}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.72);max-width:340px}
.footer-col h3{font-size:14px;color:#fff;letter-spacing:.04em;margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(255,255,255,.72);transition:color .22s var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:52px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.62);
}

/* ---------- mobile tabbar ---------- */
.tabbar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  grid-template-columns:repeat(3,1fr);
  background:#fff;border-top:1px solid var(--line);
  height:56px;
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:12px;color:var(--muted);position:relative;
  transition:color .22s var(--ease);
}
.tab-item .tab-ico{width:22px;height:22px;display:block}
.tab-item.is-current{color:var(--brand-600);font-weight:600}
.tab-item.is-current::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:34px;height:3px;border-radius:0 0 3px 3px;background:var(--brand-600);
}
.tab-item:active{background:rgba(15,76,74,.06)}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .header-inner{height:64px;gap:22px}
  .main-nav{gap:20px}
  .nav-link{font-size:14px}
  .section{padding:76px 0}
  .page-hero h1{font-size:38px}
  .intro-grid{grid-template-columns:1fr;gap:36px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:72px}
  .container{padding:0 16px}
  .main-nav{display:none}
  .header-actions .btn{display:none}
  .header-inner{height:56px;gap:12px}
  .logo-mark{width:34px;height:34px;font-size:17px}
  .logo-name{font-size:15.5px}
  .logo-sub{font-size:11.5px}
  .tabbar{display:grid}
  .page-hero{min-height:0;padding:44px 0 40px}
  .page-hero h1{font-size:29px}
  .hero-lede{font-size:15.5px}
  .hero-meta{gap:8px}
  .hero-chip{font-size:12px;padding:6px 12px}
  .section{padding:56px 0}
  .section-head{margin-bottom:30px}
  .section-title{font-size:23px}
  .section-desc{font-size:15.5px}
  .timeline::before{left:19px;top:10px;bottom:20px}
  .tl-item{padding-left:58px;padding-bottom:26px}
  .tl-node{width:40px;height:40px;font-size:15px}
  .tl-body{padding:20px 20px}
  .tl-body h3{font-size:18px}
  .dark-block{padding:32px 22px}
  .dark-block h2{font-size:22px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:20px}
  .stat-num{font-size:24px}
  .qa-grid{grid-template-columns:1fr;gap:18px}
  .qa{padding:22px 20px}
  .qa h3{font-size:17.5px}
  .cta-block{padding:36px 22px}
  .cta-block h2{font-size:22px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:52px 0 0;margin-top:56px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:479px){
  .page-hero h1{font-size:26px}
  .stat-grid{grid-template-columns:1fr}
  .hero-meta{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}