/* roulang page: index */
:root{
  --brand-700:#16497E;
  --brand-600:#1E5FA8;
  --brand-500:#2F7BD1;
  --brand-100:#EAF2FB;
  --grass-500:#0E9F6E;
  --grass-100:#E6F6EF;
  --hot-500:#F2722B;
  --paper:#F5F8FC;
  --surface:#FFFFFF;
  --line:#E2E9F2;
  --ink-900:#0E2136;
  --ink-600:#45596E;
  --ink-400:#7E8FA3;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --shadow-sm:0 1px 2px rgba(16,35,61,.06);
  --shadow-card:0 1px 2px rgba(16,35,61,.06),0 12px 32px -12px rgba(16,35,61,.14);
  --shadow-hover:0 2px 6px rgba(16,35,61,.08),0 22px 44px -16px rgba(16,35,61,.2);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:40px;
  --sp-5:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.02em;
  color:var(--ink-600);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:.01em;line-height:1.32}
h1{font-size:clamp(34px,4vw,48px)}
h2{font-size:clamp(26px,2.6vw,34px)}
h3{font-size:clamp(19px,1.7vw,22px)}
p{margin:0}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
input{font:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1248px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:72px 0}
.section-alt{background:#EFF5FB}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--brand-600);margin-bottom:14px;
}
.sec-kicker::before{content:"";width:14px;height:2px;border-radius:2px;background:var(--hot-500)}
.sec-title{position:relative;padding-left:16px}
.sec-title::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:3px;border-radius:2px;background:var(--brand-600);
}
.section-head{max-width:780px;margin-bottom:var(--sp-4)}
.sec-desc{margin-top:14px;color:var(--ink-600);font-size:16.5px}

/* ===== 通告条 ===== */
.announce{background:var(--ink-900);color:#DCE6F2;font-size:14px}
.announce-inner{display:flex;align-items:center;gap:16px;min-height:46px;padding-top:8px;padding-bottom:8px}
.announce p{margin:0;line-height:1.6}
.announce strong{color:#fff}
.announce-close{
  margin-left:auto;flex:none;width:30px;height:30px;border-radius:8px;
  border:1px solid rgba(255,255,255,.22);background:transparent;color:#DCE6F2;
  font-size:16px;line-height:1;cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease)
}
.announce-close:hover{background:rgba(255,255,255,.12);color:#fff}
.announce.is-hidden{display:none}

/* ===== 顶部导航 ===== */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--brand-600);color:#fff;
  display:grid;place-items:center;font-size:19px;font-weight:700;letter-spacing:0
}
.brand-text strong{display:block;font-size:17px;line-height:1.25;color:var(--ink-900);font-weight:700}
.brand-text em{display:block;font-style:normal;font-size:12px;color:var(--ink-400);letter-spacing:.08em;font-variant-numeric:tabular-nums}
.nav{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:8px;
  font-size:15.5px;font-weight:600;color:var(--ink-600);
  transition:color .18s var(--ease),background-color .18s var(--ease)
}
.nav-link:hover{color:var(--brand-700);background:#F1F7FE}
.nav-link.is-active{color:var(--brand-700)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--hot-500)
}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;
  cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===== Mega 面板 ===== */
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink-900);font-size:14.5px;font-weight:600;
  cursor:pointer;transition:border-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease)
}
.mega-trigger:hover{border-color:var(--brand-500);color:var(--brand-700)}
.mega-trigger .caret{transition:transform .2s var(--ease)}
.mega.is-pinned .mega-trigger{border-color:var(--brand-500);color:var(--brand-700)}
.mega.is-pinned .mega-trigger .caret{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:840px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-hover);
  padding:28px;display:grid;grid-template-columns:1.1fr 1fr .9fr;gap:28px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s var(--ease) .12s,transform .18s var(--ease) .12s,visibility .18s linear .12s
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel,.mega.is-pinned .mega-panel{
  opacity:1;visibility:visible;transform:none;transition-delay:0s
}
.mega-col h4{font-size:12.5px;font-weight:700;letter-spacing:.12em;color:var(--ink-400);margin-bottom:14px}
.mega-links{display:grid;gap:2px}
.mega-links a{
  display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;font-size:14.5px;color:var(--ink-600);
  transition:background-color .18s var(--ease),color .18s var(--ease)
}
.mega-links a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grass-500);flex:none}
.mega-links a:hover{background:#F1F7FE;color:var(--brand-700)}
.mega-post{display:block;padding:10px 0;border-bottom:1px dashed var(--line)}
.mega-post:last-child{border-bottom:0}
.mega-post span{display:block;font-size:14.5px;font-weight:600;color:var(--ink-900);line-height:1.5}
.mega-post time{display:block;margin-top:4px;font-size:12.5px;color:var(--ink-400);font-variant-numeric:tabular-nums}
.mega-post:hover span{color:var(--brand-700)}
.mega-card{
  border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;background:#FBFDFF
}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.mega-card-body{padding:16px}
.mega-card-body p{font-size:14px;line-height:1.7;margin:8px 0 14px;color:var(--ink-600)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;
  border-radius:var(--r-btn);border:1px solid transparent;font-size:16px;font-weight:600;cursor:pointer;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),transform .12s var(--ease),box-shadow .2s var(--ease)
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);box-shadow:inset 0 1px 0 rgba(255,255,255,.16),0 10px 22px -12px rgba(30,95,168,.85)}
.btn-secondary{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-secondary:hover{border-color:var(--brand-500);color:var(--brand-700)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-md{height:40px;padding:0 18px;font-size:14.5px}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600)
}
.link-arrow span{transition:transform .2s var(--ease)}
.link-arrow:hover{color:var(--brand-700)}
.link-arrow:hover span{transform:translateX(3px)}

/* ===== 徽章 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.04em;background:var(--brand-100);color:var(--brand-700)
}
.badge-grass{background:var(--grass-100);color:#0B7C56}
.badge-hot{background:#FDEEE5;color:#C2521A}

/* ===== 卡片通用 ===== */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease)
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:var(--ink-900) url('/assets/images/backpic/back-1.webp') center/cover no-repeat
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,33,54,.9) 0%,rgba(14,33,54,.68) 52%,rgba(14,33,54,.42) 100%)
}
.hero-inner{
  position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;
  padding-top:86px;padding-bottom:96px
}
.hero-eyebrow{
  display:inline-block;padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.1em;
  color:#CFE2F7;background:rgba(47,123,209,.28);border:1px solid rgba(207,226,247,.3)
}
.hero-title{color:#fff;margin:20px 0 18px;text-wrap:balance}
.hero-sub{font-size:18px;color:#D3E0EF;max-width:30em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-actions .btn-secondary{background:rgba(255,255,255,.94);border-color:transparent}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:32px}
.hero-points li{position:relative;padding-left:18px;font-size:14.5px;color:#C9D8E9}
.hero-points li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--grass-500)
}
.hero-card{
  background:#fff;border-radius:var(--r-card);overflow:hidden;box-shadow:0 28px 60px -24px rgba(3,14,28,.7);
  color:var(--ink-600)
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-card-body{padding:24px}
.hero-card-body h2{font-size:20px;margin:12px 0 8px}
.hero-card-body p{font-size:15px;margin-bottom:16px}
.field-line{position:relative;height:1px;background:rgba(47,123,209,.55)}
.field-line i{position:absolute;top:-3px;width:7px;height:7px;border-radius:50%;background:var(--grass-500)}
.field-line i:nth-child(1){left:14%}
.field-line i:nth-child(2){left:50%}
.field-line i:nth-child(3){left:84%}

/* ===== 品牌故事 ===== */
.story-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center}
.story-media{margin:0}
.story-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--shadow-card)}
.story-media figcaption{margin-top:12px;font-size:13px;color:var(--ink-400)}
.story-copy p{margin-top:16px;font-size:16.5px}
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px;padding-top:28px;border-top:1px solid var(--line)}
.metric-row strong{
  display:block;font-size:clamp(26px,2.4vw,32px);font-weight:700;color:var(--brand-700);
  font-variant-numeric:tabular-nums;line-height:1.1
}
.metric-row strong em{font-style:normal;font-size:15px;font-weight:600;color:var(--ink-400);margin-left:3px}
.metric-row span{display:block;margin-top:6px;font-size:14px;color:var(--ink-400)}

/* ===== 精选内容 ===== */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.feature-thumb{display:block;overflow:hidden;border-radius:var(--r-img);background:var(--brand-100);margin:20px 20px 0}
.feature-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s var(--ease)}
.feature-card:hover .feature-thumb img{transform:scale(1.03)}
.feature-body{padding:20px 24px 26px}
.feature-body h3{margin:12px 0 10px}
.feature-body p{font-size:15.5px;margin-bottom:16px}
.feature-side{display:grid;gap:24px}
.mini-card{display:grid;grid-template-columns:180px 1fr;align-items:stretch}
.mini-thumb{display:block;overflow:hidden;background:var(--brand-100)}
.mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.mini-card:hover .mini-thumb img{transform:scale(1.03)}
.mini-body{padding:20px 22px}
.mini-body h3{font-size:17px;margin:10px 0 8px}
.mini-body p{font-size:14.5px;color:var(--ink-600)}

/* ===== 最新信息列表 ===== */
.news-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease)
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.news-thumb{display:block;overflow:hidden;background:var(--brand-100)}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:24px;display:flex;flex-direction:column;flex:1}
.news-title{font-size:18px;margin:12px 0 10px;letter-spacing:.01em}
.news-title a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s var(--ease)}
.news-title a:hover{color:var(--brand-700)}
.news-summary{
  font-size:15px;color:var(--ink-600);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-400)
}
.news-foot time{font-variant-numeric:tabular-nums}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;background:var(--surface);
  border:1px dashed var(--line);border-radius:var(--r-card)
}
.empty-figure{width:180px;margin:0 auto 22px;position:relative;height:56px}
.empty-figure::before{content:"";position:absolute;left:0;right:0;top:28px;height:1px;background:var(--line)}
.empty-figure i{position:absolute;top:25px;width:7px;height:7px;border-radius:50%;background:var(--grass-500)}
.empty-figure i:nth-child(1){left:22%}
.empty-figure i:nth-child(2){left:50%}
.empty-figure i:nth-child(3){left:76%}
.empty-title{font-size:17px;font-weight:600;color:var(--ink-900)}
.empty-desc{font-size:14.5px;color:var(--ink-400);margin:8px 0 20px}
.news-skeleton{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.sk-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px}
.sk-line{height:14px;border-radius:6px;background:linear-gradient(90deg,#EDF3FA 25%,#F7FAFE 37%,#EDF3FA 63%);background-size:400% 100%;animation:sk 1.4s ease infinite}
.sk-line+.sk-line{margin-top:14px}
.sk-line.sk-lg{height:20px;width:70%}
.sk-line.sk-sm{width:45%}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ===== 数据条与品牌墙 ===== */
.stats-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);padding:36px 32px;box-shadow:var(--shadow-card)
}
.stat{text-align:left;padding-left:16px;border-left:3px solid var(--brand-100)}
.stat strong{
  display:block;font-size:clamp(26px,2.6vw,34px);color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.1
}
.stat strong em{font-style:normal;font-size:14px;color:var(--ink-400);margin-left:4px;font-weight:600}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--ink-400)}
.brand-wall{
  display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:28px
}
.brand-tile{
  display:flex;align-items:center;justify-content:center;height:76px;border:1px solid var(--line);
  border-radius:var(--r-img);background:var(--surface);color:#93A6BA;font-weight:700;font-size:15px;
  filter:grayscale(1);transition:filter .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease)
}
.brand-tile:hover{filter:grayscale(0);color:var(--brand-700);border-color:var(--brand-500);transform:translateY(-3px)}

/* ===== FAQ ===== */
.faq-list{max-width:900px}
.faq{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-img);
  margin-bottom:12px;overflow:hidden
}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;
  padding:12px 24px;cursor:pointer;font-size:16.5px;font-weight:600;color:var(--ink-900);
  list-style:none;transition:background-color .18s var(--ease)
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";flex:none;font-size:22px;font-weight:400;color:var(--brand-600);line-height:1;
  transition:transform .2s var(--ease)
}
.faq[open] summary::after{transform:rotate(45deg)}
.faq summary:hover{background:#F7FAFE}
.faq-body{padding:0 24px 22px;font-size:15.5px;color:var(--ink-600);line-height:1.8}

/* ===== CTA ===== */
.cta-panel{
  background:var(--ink-900);border-radius:var(--r-card);padding:48px;color:#C6D5E6;
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  box-shadow:0 30px 60px -30px rgba(14,33,54,.6)
}
.cta-panel h2{color:#fff;font-size:clamp(24px,2.3vw,30px)}
.cta-panel p{margin-top:12px;font-size:15.5px;color:#A9BBD0}
.cta-form{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:end}
.field{display:block;grid-column:1/-1}
.field-label{display:block;font-size:13px;color:#A9BBD0;margin-bottom:8px}
.req{color:var(--hot-500);margin-left:4px}
.cta-form input{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid rgba(197,214,232,.28);background:rgba(255,255,255,.06);color:#fff;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease)
}
.cta-form input::placeholder{color:#8199B1}
.cta-form input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(47,123,209,.28)}
.cta-form input.is-error{border-color:#E5635B;box-shadow:0 0 0 3px rgba(229,99,91,.22)}
.form-msg{grid-column:1/-1;font-size:14px;min-height:22px;color:#A9BBD0}
.form-msg.is-error{color:#F19A93}
.form-msg.is-ok{color:#7FDCB4}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-900);color:#A9BBD0;margin-top:0;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-logo{font-size:19px;font-weight:700;color:#fff;letter-spacing:.01em}
.footer-brand p{margin-top:14px;font-size:14.5px;line-height:1.8}
.footer-col h3{color:#fff;font-size:14.5px;font-weight:700;letter-spacing:.06em;margin-bottom:16px}
.footer-col li+li{margin-top:10px}
.footer-col a{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;color:#A9BBD0;
  transition:color .18s var(--ease)
}
.footer-col a::before{content:"›";color:#5F7A98;transition:transform .18s var(--ease),color .18s var(--ease)}
.footer-col a:hover{color:#fff}
.footer-col a:hover::before{transform:translateX(-3px);color:var(--grass-500)}
.footer-col p{font-size:14.5px;line-height:1.9;font-variant-numeric:tabular-nums}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(169,187,208,.18);
  font-size:13.5px;color:#7E96B0
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .container{max-width:1008px}
  .mega-panel{width:740px;grid-template-columns:1.1fr 1fr .9fr;padding:24px;gap:22px}
  .hero-inner{gap:40px}
}
@media (max-width:1023px){
  .container{max-width:100%;padding-left:20px;padding-right:20px}
  .section{padding:56px 0}
  .nav-toggle{display:flex}
  .nav{
    display:none;margin-left:0;position:fixed;left:0;right:0;top:72px;bottom:0;
    background:#fff;padding:16px 20px 40px;overflow-y:auto;border-top:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0
  }
  body.menu-open .nav{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{display:block;padding:15px 4px;border-bottom:1px solid var(--line);border-radius:0}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{color:var(--brand-700);border-bottom-color:var(--brand-500)}
  .mega{width:100%}
  .mega-trigger{width:100%;justify-content:space-between;margin-top:14px;height:44px}
  .mega-panel{
    position:static;width:auto;opacity:1;visibility:visible;transform:none;display:none;
    box-shadow:none;border-radius:var(--r-img);padding:20px;grid-template-columns:1fr;gap:22px;
    margin-top:12px;transition:none
  }
  .mega:hover .mega-panel{display:none}
  .mega.is-pinned .mega-panel{display:grid}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding-top:64px;padding-bottom:72px}
  .hero-sub{max-width:none}
  .story-grid{grid-template-columns:1fr;gap:32px}
  .feature-grid{grid-template-columns:1fr}
  .feature-side{grid-template-columns:repeat(2,1fr)}
  .mini-card{grid-template-columns:1fr}
  .mini-thumb img{aspect-ratio:16/9;height:auto}
  .stats-band{grid-template-columns:repeat(2,1fr);padding:28px 24px}
  .brand-wall{grid-template-columns:repeat(3,1fr)}
  .cta-panel{grid-template-columns:1fr;padding:36px 28px;gap:28px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767px){
  body{font-size:16.5px}
  .section{padding:44px 0}
  .brand-text em{display:none}
  .header-inner{height:64px;gap:12px}
  .nav{top:64px}
  .hero-inner{padding-top:52px;padding-bottom:60px}
  .hero-actions .btn{flex:1 1 100%}
  .news-list{grid-template-columns:1fr}
  .news-skeleton{grid-template-columns:1fr}
  .feature-side{grid-template-columns:1fr}
  .metric-row{grid-template-columns:1fr;gap:16px;text-align:left}
  .mini-card{grid-template-columns:1fr}
  .cta-form{grid-template-columns:1fr}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .faq summary{font-size:15.5px;padding:12px 18px}
  .faq-body{padding:0 18px 20px}
}
@media (max-width:479px){
  .container{padding-left:16px;padding-right:16px}
  h1{font-size:30px}
  .hero-card-body,.news-body,.feature-body,.mini-body{padding:18px}
  .feature-thumb{margin:14px 14px 0}
  .stats-band{grid-template-columns:1fr;gap:18px}
  .brand-wall{grid-template-columns:repeat(2,1fr)}
  .badge{font-size:11.5px;padding:5px 10px}
}

/* roulang page: category1 */
:root{
  --brand-700:#16497E;
  --brand-600:#1E5FA8;
  --brand-500:#2F7BD1;
  --grass-500:#0E9F6E;
  --hot-500:#F2722B;
  --paper:#F5F8FC;
  --surface:#FFFFFF;
  --line:#E2E9F2;
  --ink-900:#0E2136;
  --ink-600:#45596E;
  --ink-400:#7E8FA3;
  --tag-blue:#EAF2FB;
  --tag-green:#E6F6EF;
  --hover-row:#F7FAFE;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --shadow-card:0 1px 2px rgba(16,35,61,.06), 0 12px 32px -12px rgba(16,35,61,.14);
  --shadow-hover:0 2px 4px rgba(16,35,61,.08), 0 22px 46px -14px rgba(16,35,61,.22);
  --shadow-panel:0 12px 40px -12px rgba(16,35,61,.24);
  --ease:cubic-bezier(.2,.7,.3,1);
  --s1:8px;--s2:16px;--s3:24px;--s4:40px;--s5:64px;
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.02em;
  color:var(--ink-600);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:.01em;line-height:1.32}
p{margin:0}
a{color:var(--brand-600);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-700)}
img{max-width:100%;display:block;border:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px) and (max-width:1279px){.container{max-width:960px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(6px);
}
.header-inner{display:flex;align-items:center;gap:var(--s3);height:72px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(150deg,var(--brand-600),var(--brand-700));
  color:#fff;font-weight:700;font-size:19px;display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{color:var(--ink-900);font-size:17px;font-weight:700;letter-spacing:.03em}
.brand-text em{font-style:normal;font-size:12px;color:var(--ink-400);letter-spacing:.06em}
.nav{margin-left:auto;display:flex;align-items:center;gap:var(--s3)}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:8px;
  font-size:15px;color:var(--ink-600);font-weight:500;
}
.nav-link:hover{color:var(--brand-700);background:var(--hover-row)}
.nav-link.is-active{color:var(--ink-900);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--hot-500);border-radius:2px;
}
/* Mega */
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--surface);
  color:var(--ink-900);font-size:14px;font-weight:600;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.mega-trigger:hover{border-color:var(--brand-500);box-shadow:0 4px 14px -8px rgba(30,95,168,.5)}
.mega-trigger .caret{transition:transform .2s var(--ease)}
.mega-trigger[aria-expanded="true"] .caret{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:780px;max-width:calc(100vw - 40px);
  display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:var(--s3);
  padding:var(--s3);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-panel);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel,.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;color:var(--ink-400);letter-spacing:.08em;margin-bottom:12px;font-weight:600}
.mega-links li+li{margin-top:2px}
.mega-links a{
  display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:8px;
  font-size:14px;color:var(--ink-600);
}
.mega-links a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grass-500);flex-shrink:0}
.mega-links a:hover{background:var(--hover-row);color:var(--brand-700)}
.mega-post{display:block;padding:8px 10px;border-radius:8px;color:var(--ink-600);font-size:14px;line-height:1.6}
.mega-post span{display:block}
.mega-post time{display:block;font-size:12px;color:var(--ink-400);font-variant-numeric:tabular-nums;margin-top:4px}
.mega-post:hover{background:var(--hover-row);color:var(--brand-700)}
.mega-card{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--paper);
  display:flex;flex-direction:column;
}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.mega-card-body{padding:14px;display:flex;flex-direction:column;gap:10px}
.mega-card-body p{font-size:13px;color:var(--ink-600);line-height:1.6}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:var(--surface);margin-left:auto;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 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:.02em;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),transform .1s var(--ease);
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 10px 24px -14px rgba(30,95,168,.9)}
.btn-primary:hover{background:var(--brand-700);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 12px 26px -14px rgba(22,73,126,.95)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);color:var(--ink-900);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-md{height:40px;padding:0 20px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;font-size:15px}
.btn-text .arrow{transition:transform .2s var(--ease)}
.btn-text:hover .arrow{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;font-size:12px;letter-spacing:.04em;
  background:var(--tag-blue);color:var(--brand-700);font-weight:600;
}
.badge-green{background:var(--tag-green);color:#0B7B55}
.badge-line{background:transparent;border:1px solid var(--line);color:var(--ink-600);font-weight:500}

/* ---------- Breadcrumb ---------- */
.crumb-wrap{background:var(--surface);border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--ink-400)}
.breadcrumb a{color:var(--ink-400)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#C3CEDB}
.breadcrumb .current{color:var(--ink-900);font-weight:600}

/* ---------- Hero ---------- */
.page-hero{position:relative;background:#dfe8f4;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(245,248,252,.95) 0%,rgba(245,248,252,.86) 42%,rgba(245,248,252,.55) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.page-hero-inner{position:relative;padding:56px 0 48px;min-height:320px;display:flex;flex-direction:column;justify-content:center;gap:18px}
.page-hero h1{font-size:clamp(30px,3.6vw,44px);max-width:820px}
.page-hero .lead{font-size:18px;color:var(--ink-600);max-width:640px;line-height:1.8}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.pitch-line{position:relative;height:1px;background:linear-gradient(90deg,var(--brand-500),rgba(47,123,209,.15));display:flex;align-items:center;gap:10px;padding-left:2px}
.pitch-line span{width:6px;height:6px;border-radius:50%;background:var(--grass-500);display:block;transform:translateY(-1px)}
.pitch-line span:first-child{margin-left:64px}

/* ---------- Sections ---------- */
.section{padding:var(--s5) 0}
.section-tight{padding-top:var(--s4)}
.section-head{display:flex;flex-direction:column;gap:12px;margin-bottom:var(--s4)}
.section-title{position:relative;padding-left:16px;font-size:clamp(24px,2.4vw,32px)}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--brand-600)}
.section-desc{max-width:720px;color:var(--ink-600)}

/* Split guide */
.split{display:grid;grid-template-columns:7fr 5fr;gap:var(--s5);align-items:center}
.split-body p+p{margin-top:18px}
.stat-row{display:flex;flex-wrap:wrap;gap:var(--s4);margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
.stat{min-width:130px}
.stat b{display:block;font-size:30px;color:var(--brand-700);font-variant-numeric:tabular-nums;letter-spacing:0}
.stat span{font-size:14px;color:var(--ink-400)}
.figure{
  border-radius:var(--r-img);overflow:hidden;background:var(--paper);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s var(--ease)}
.figure:hover img{transform:scale(1.03)}
.figure figcaption{padding:12px 16px;font-size:13px;color:var(--ink-400);background:var(--surface);border-top:1px solid var(--line)}

/* Numbered list */
.step-list{display:flex;flex-direction:column;gap:0}
.step{
  display:grid;grid-template-columns:88px 1fr;gap:var(--s3);
  padding:28px 24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.step+.step{margin-top:16px}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFDDEE}
.step-num{font-size:40px;font-weight:700;color:var(--brand-600);font-variant-numeric:tabular-nums;line-height:1;letter-spacing:0}
.step h3{font-size:clamp(19px,1.6vw,22px);margin-bottom:10px}
.step p{color:var(--ink-600)}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* FAQ */
.faq{max-width:900px;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.faq-item:hover{background:var(--hover-row)}
.faq-item[open]{border-color:#CFDDEE;box-shadow:var(--shadow-card)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:0 24px;font-size:17px;font-weight:600;color:var(--ink-900);
  cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-icon{
  position:relative;width:18px;height:18px;flex-shrink:0;transition:transform .25s var(--ease);
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-600);border-radius:2px}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px}
.faq-item[open] .faq-icon{transform:rotate(90deg)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-a{padding:0 24px 22px;color:var(--ink-600);line-height:1.8;max-width:760px;border-top:1px solid var(--line);margin-top:-1px;padding-top:18px}

/* CTA band */
.cta-band{
  background:var(--ink-900);border-radius:var(--r-card);padding:var(--s4);
  display:grid;grid-template-columns:1.2fr 1fr;gap:var(--s4);align-items:center;color:#D7E1EC;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.2vw,30px);margin-bottom:12px}
.cta-band p{color:#A8B8C9;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.32);color:#fff}
.cta-band .btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.06)}

/* Subscribe form */
.subscribe{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:var(--s3);box-shadow:var(--shadow-card)}
.subscribe h3{font-size:19px;margin-bottom:10px}
.subscribe p{font-size:14px;color:var(--ink-400);margin-bottom:16px}
.form-row{display:flex;gap:10px;flex-wrap:wrap}
.field{flex:1 1 220px;display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;color:var(--ink-600)}
.req{color:#D6403A;margin-left:2px}
.input{
  height:48px;padding:0 14px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:var(--surface);color:var(--ink-900);font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.input::placeholder{color:#A9B7C6}
.input:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(47,123,209,.16);outline:none}
.hint{font-size:13px;color:var(--ink-400)}
.error-text{font-size:14px;color:#D6403A}
.success-text{font-size:14px;color:#0B7B55}

/* Footer */
.site-footer{background:var(--ink-900);color:#A8B8C9;margin-top:var(--s5);padding:var(--s5) 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:var(--s4)}
.footer-logo{color:#fff;font-size:19px;font-weight:700;letter-spacing:.03em;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;color:#93A6B9;max-width:340px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;letter-spacing:.04em}
.footer-col ul li+li{margin-top:10px}
.footer-col a{color:#A8B8C9;font-size:14px;display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-col p{font-size:14px;color:#93A6B9;margin-bottom:8px}
.footer-bottom{
  margin-top:var(--s4);border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:20px 20px 28px;font-size:13px;color:#7E8FA3;
}
.footer-bottom p{margin:0}

/* Empty / skeleton / toast states */
.empty-state{
  background:var(--surface);border:1px dashed #CFDDEE;border-radius:var(--r-card);
  padding:var(--s4);text-align:center;color:var(--ink-400);
}
.empty-state strong{display:block;color:var(--ink-900);font-size:17px;margin-bottom:8px}
.empty-state .lines{width:120px;height:6px;margin:18px auto 20px;border-radius:4px;background:linear-gradient(90deg,var(--brand-500),var(--grass-500))}
.skeleton{background:linear-gradient(90deg,#EEF3F9 25%,#E3EBF5 37%,#EEF3F9 63%);background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:8px}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,12px);
  background:var(--ink-900);color:#fff;font-size:14px;padding:12px 20px;border-radius:999px;
  box-shadow:var(--shadow-panel);opacity:0;pointer-events:none;transition:opacity .25s var(--ease),transform .25s var(--ease);z-index:99;
}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .header-inner{height:64px}
  .nav-toggle{display:flex}
  .nav{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--surface);border-bottom:1px solid var(--line);
    padding:12px 20px 20px;box-shadow:var(--shadow-panel);
    display:none;
  }
  .nav.is-open{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:10px}
  .nav-link.is-active::after{left:12px;right:auto;width:22px;bottom:8px}
  .mega{width:100%;margin-top:8px}
  .mega-trigger{width:100%;justify-content:space-between;height:46px}
  .mega-panel{
    position:static;width:100%;max-width:none;grid-template-columns:1fr;gap:var(--s3);
    box-shadow:none;margin-top:10px;border-radius:12px;
    display:none;opacity:1;visibility:visible;transform:none;
  }
  .mega-panel.is-open{display:grid}
  .mega:hover .mega-panel:not(.is-open){display:none}
  .split{grid-template-columns:1fr;gap:var(--s4)}
  .cta-band{grid-template-columns:1fr;gap:var(--s3)}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--s3)}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:40px 0}
  .page-hero-inner{padding:40px 0 34px;min-height:260px}
  .step{grid-template-columns:1fr;gap:12px;padding:22px 18px}
  .step-num{font-size:32px}
  .pitch-line span:first-child{margin-left:0}
  .footer-grid{grid-template-columns:1fr}
  .faq-q{padding:0 18px;font-size:16px}
  .faq-a{padding:16px 18px 20px}
}
@media (max-width:479px){
  .container{padding:0 20px}
  .brand-text em{display:none}
  .card,.step,.subscribe,.cta-band{padding:20px 16px}
  .btn{padding:0 18px}
  .stat b{font-size:26px}
}

/* roulang page: article */
:root{
  --brand-700:#16497E;
  --brand-600:#1E5FA8;
  --brand-500:#2F7BD1;
  --brand-50:#EAF2FB;
  --grass-500:#0E9F6E;
  --grass-50:#E6F6EF;
  --hot-500:#F2722B;
  --paper:#F5F8FC;
  --surface:#FFFFFF;
  --line:#E2E9F2;
  --ink-900:#0E2136;
  --ink-600:#45596E;
  --ink-400:#7E8FA3;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-card:0 1px 2px rgba(16,35,61,.06), 0 12px 32px -12px rgba(16,35,61,.14);
  --shadow-hover:0 2px 4px rgba(16,35,61,.08), 0 20px 44px -16px rgba(16,35,61,.20);
  --shadow-panel:0 18px 48px -20px rgba(16,35,61,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.02em;
  color:var(--ink-600);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:.01em;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
img{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
time{font-variant-numeric:tabular-nums}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px}
.container{width:min(100% - 40px,var(--container));margin-inline:auto}
@media (max-width:479px){.container{width:calc(100% - 32px)}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:saturate(140%) blur(6px)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:78px;position:relative}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-mark{width:42px;height:42px;border-radius:12px;background:var(--brand-600);color:#fff;display:grid;place-items:center;font-size:20px;font-weight:700;letter-spacing:0}
.brand-text strong{display:block;font-size:16px;color:var(--ink-900);letter-spacing:.02em;line-height:1.3}
.brand-text em{display:block;font-style:normal;font-size:12px;color:var(--ink-400);letter-spacing:.06em;line-height:1.5}
.nav{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{position:relative;display:inline-flex;align-items:center;padding:10px 14px;border-radius:8px;font-size:15px;color:var(--ink-600)}
.nav-link:hover{color:var(--brand-700);background:var(--brand-50)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--hot-500)}
.mega{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 16px;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--surface);font-size:15px;color:var(--ink-900);transition:all .2s var(--ease)}
.mega-trigger:hover{border-color:var(--brand-500);color:var(--brand-700)}
.mega-trigger .caret{transition:transform .2s var(--ease)}
.mega:hover .mega-trigger .caret,.mega.is-open .mega-trigger .caret{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:780px;
  display:grid;grid-template-columns:1.15fr 1fr .95fr;gap:26px;
  padding:26px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-panel);
  opacity:0;visibility:hidden;transform:translateY(-6px);pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel,.mega.is-open .mega-panel{opacity:1;visibility:visible;transform:none;pointer-events:auto}
.mega-col h4{font-size:13px;font-weight:600;color:var(--ink-400);letter-spacing:.1em;margin-bottom:14px}
.mega-links{display:grid;gap:2px}
.mega-links a{display:flex;align-items:center;gap:8px;padding:8px 6px;border-radius:8px;font-size:14px;color:var(--ink-600)}
.mega-links a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grass-500);flex:none}
.mega-links a:hover{color:var(--brand-700);background:var(--brand-50)}
.mega-post{display:block;padding:12px 0;border-bottom:1px dashed var(--line)}
.mega-post span{display:block;font-size:14px;color:var(--ink-900);line-height:1.6}
.mega-post time{display:block;margin-top:6px;font-size:12px;color:var(--ink-400)}
.mega-post:hover span{color:var(--brand-600)}
.mega-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-img);padding:14px;display:flex;flex-direction:column;gap:12px}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:10px}
.mega-card p{font-size:13px;line-height:1.7;color:var(--ink-600)}
.nav-toggle{display:none;width:42px;height:42px;margin-left:auto;border:1px solid var(--line);border-radius:10px;background:var(--surface);flex-direction:column;gap:5px;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons & badges ---------- */
.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;letter-spacing:.02em;cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease)}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 10px 20px -12px rgba(30,95,168,.75)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:inset 0 2px 6px rgba(0,0,0,.18)}
.btn-ghost{background:var(--surface);color:var(--ink-900);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:var(--brand-50);color:var(--brand-600);font-size:12px;font-weight:600;letter-spacing:.04em}
.badge--grass{background:var(--grass-50);color:var(--grass-500)}

/* ---------- page shell ---------- */
.page-main{padding:30px 0 72px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .current{color:var(--ink-600);display:inline-block;max-width:52ch;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.article-head{margin-top:22px}
.article-title{font-size:clamp(28px,3.4vw,40px);line-height:1.34;margin:16px 0 18px;max-width:22em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--ink-400)}
.article-meta .sep{color:#C7D4E3}
.field-line{display:flex;align-items:center;gap:8px;margin-top:26px}
.field-line::before{content:"";flex:1;height:1px;background:#D7E4F4}
.field-line .dot{width:6px;height:6px;border-radius:50%;background:var(--grass-500)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;margin-top:40px}
.article-body{font-size:17px;line-height:1.85;letter-spacing:.02em;color:var(--ink-600);max-width:760px}
.article-body > * + *{margin-top:1.2em}
.article-body h2{position:relative;font-size:clamp(22px,2.2vw,28px);padding-left:14px;margin-top:2em;line-height:1.45}
.article-body h2::before{content:"";position:absolute;left:0;top:.38em;bottom:.38em;width:3px;border-radius:2px;background:var(--brand-600)}
.article-body h3{font-size:clamp(18px,1.9vw,22px);margin-top:1.8em}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-700)}
.article-body img{width:100%;border-radius:var(--radius-img);margin:1.6em 0 .6em}
.article-body figure{margin:1.6em 0}
.article-body figure img{margin:0 0 .6em}
.article-body figcaption{font-size:13px;color:var(--ink-400);text-align:center;line-height:1.7}
.article-body blockquote{margin:1.6em 0;padding:18px 22px;background:var(--brand-50);border-left:3px solid var(--grass-500);border-radius:0 12px 12px 0}
.article-body blockquote p{color:var(--ink-600)}
.article-body ul,.article-body ol{padding-left:1.45em;line-height:1.9}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li::marker{color:var(--brand-500)}
.article-body li + li{margin-top:.4em}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0}
.article-body th,.article-body td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.article-body th{color:var(--ink-900);font-weight:600}
.article-body strong{color:var(--ink-900)}

/* ---------- aside ---------- */
.article-aside{display:none}
.aside-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-card);position:sticky;top:104px}
.aside-card h2{font-size:17px;margin-bottom:14px;padding-left:12px;position:relative}
.aside-card h2::before{content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:3px;border-radius:2px;background:var(--grass-500)}
.aside-list{display:grid;gap:12px}
.aside-list a{display:block;font-size:14px;line-height:1.7;color:var(--ink-600);padding-bottom:12px;border-bottom:1px dashed var(--line)}
.aside-list li:last-child a{border-bottom:0;padding-bottom:0}
.aside-list a:hover{color:var(--brand-600)}
.aside-note{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-400);line-height:1.75}

/* ---------- related ---------- */
.related{margin-top:72px;padding-top:40px;border-top:1px solid var(--line)}
.section-head h2{position:relative;padding-left:14px;font-size:clamp(22px,2.4vw,30px)}
.section-head h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:2px;background:var(--brand-600)}
.section-head p{margin-top:10px;font-size:14px;color:var(--ink-400)}
.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;margin-top:28px}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--brand-50)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17px;line-height:1.55;font-weight:600;color:var(--ink-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;line-height:1.75;color:var(--ink-400);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--ink-400)}
.back-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:36px}

/* ---------- empty state ---------- */
.state-empty{background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);padding:72px 24px;text-align:center;box-shadow:var(--shadow-card)}
.state-empty .state-mark{display:flex;justify-content:center;gap:8px;margin-bottom:22px}
.state-empty .state-mark span{width:8px;height:8px;border-radius:50%;background:var(--grass-500);opacity:.7}
.state-empty .state-mark span:nth-child(2){background:var(--brand-500)}
.state-empty h2{font-size:24px;margin-bottom:12px}
.state-empty p{font-size:15px;color:var(--ink-400);max-width:46ch;margin:0 auto 26px}

/* ---------- footer ---------- */
.site-footer{margin-top:88px;background:var(--ink-900);color:#C6D3E2;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:40px;padding-bottom:48px}
.footer-logo{color:#fff;font-size:18px;font-weight:700;letter-spacing:.02em;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:#A9BACC;max-width:36ch}
.footer-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:#C6D3E2}
.footer-col a::before{content:"›";display:inline-block;opacity:0;transform:translateX(-4px);margin-right:0;transition:opacity .2s var(--ease),transform .2s var(--ease),margin-right .2s var(--ease)}
.footer-col a:hover{color:#fff}
.footer-col a:hover::before{opacity:1;transform:none;margin-right:5px}
.footer-col p{font-size:14px;color:#A9BACC;line-height:1.85}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#8FA3B8}

/* ---------- responsive ---------- */
@media (min-width:1280px){
  .article-layout.has-aside{grid-template-columns:minmax(0,1fr) 300px}
  .article-aside{display:block}
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .nav{position:absolute;left:0;right:0;top:100%;margin:0;display:none;flex-direction:column;align-items:stretch;gap:14px;padding:18px 20px 24px;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow-card)}
  .site-header.nav-open .nav{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{justify-content:flex-start;padding:14px 12px}
  .nav-link.is-active::after{left:12px;right:auto;width:22px;bottom:8px}
  .mega{width:100%}
  .mega-trigger{width:100%;justify-content:space-between}
  .mega-panel{position:static;width:100%;grid-template-columns:1fr;gap:20px;margin-top:12px;padding:18px;box-shadow:none;opacity:1;visibility:visible;transform:none;pointer-events:auto;display:none}
  .mega.is-open .mega-panel{display:grid}
}
@media (max-width:768px){
  body{font-size:16px}
  .header-inner{min-height:68px;gap:14px}
  .brand-mark{width:38px;height:38px;font-size:18px}
  .brand-text em{display:none}
  .page-main{padding:22px 0 56px}
  .article-layout{gap:32px;margin-top:30px}
  .related{margin-top:52px;padding-top:32px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .site-footer{margin-top:64px;padding-top:48px}
}
@media (max-width:520px){
  .brand-text strong{font-size:15px}
  .article-title{font-size:26px}
  .card-body{padding:14px 16px 18px}
  .aside-card{padding:18px}
  .state-empty{padding:52px 18px}
  .btn{height:44px;padding:0 18px;font-size:14px}
}

/* roulang page: category2 */
:root{
  --brand-700:#16497E;
  --brand-600:#1E5FA8;
  --brand-500:#2F7BD1;
  --brand-050:#EAF2FB;
  --grass-500:#0E9F6E;
  --grass-050:#E6F6EF;
  --hot-500:#F2722B;
  --paper:#F5F8FC;
  --surface:#FFFFFF;
  --line:#E2E9F2;
  --ink-900:#0E2136;
  --ink-600:#45596E;
  --ink-400:#7E8FA3;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-sm:0 1px 2px rgba(16,35,61,.06);
  --shadow-card:0 1px 2px rgba(16,35,61,.06), 0 12px 32px -12px rgba(16,35,61,.14);
  --shadow-hover:0 2px 4px rgba(16,35,61,.08), 0 20px 44px -16px rgba(16,35,61,.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:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.02em;
  color:var(--ink-600);
  background:var(--paper);
}
h1,h2,h3,h4{color:var(--ink-900);font-weight:700;letter-spacing:.01em;line-height:1.32;margin:0}
h1{font-size:clamp(30px,4vw,48px)}
h2{font-size:clamp(24px,2.6vw,34px)}
h3{font-size:clamp(19px,1.6vw,24px)}
h4{font-size:17px}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
a{color:var(--brand-600);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease)}
a:hover{color:var(--brand-700)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select{font:inherit;color:inherit}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink-900);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0;color:#fff}

/* 容器 */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* 页头与导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(16,35,61,.02)}
.header-inner{display:flex;align-items:center;gap:24px;height:74px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-mark{width:42px;height:42px;border-radius:12px;background:var(--brand-600);color:#fff;display:grid;place-items:center;font-size:20px;font-weight:700;letter-spacing:0}
.brand-text strong{display:block;font-size:17px;color:var(--ink-900);line-height:1.25}
.brand-text em{font-style:normal;display:block;font-size:12px;color:var(--ink-400);letter-spacing:.08em;line-height:1.5}
.nav{margin-left:auto;display:flex;align-items:center;gap:8px}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;display:inline-block;padding:10px 14px;border-radius:8px;font-size:15px;font-weight:500;color:var(--ink-600)}
.nav-link:hover{background:#F1F6FC;color:var(--brand-700)}
.nav-link.is-active{color:var(--ink-900);font-weight:700}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--hot-500)}
.mega{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink-900);font-size:15px;font-weight:600;cursor:pointer;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.mega-trigger:hover{border-color:var(--brand-500);box-shadow:var(--shadow-sm)}
.mega-trigger .caret{transition:transform .2s var(--ease)}
.mega.is-open .mega-trigger .caret,
.mega:hover .mega-trigger .caret{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:820px;
  display:grid;grid-template-columns:1.15fr 1fr .95fr;gap:28px;
  padding:26px;background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-card);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s linear;
  transition-delay:.12s;
}
.mega:hover .mega-panel,
.mega:focus-within .mega-panel,
.mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{margin-bottom:12px;font-size:13px;letter-spacing:.1em;color:var(--ink-400);font-weight:600}
.mega-links li a{display:flex;align-items:center;gap:10px;padding:7px 0;font-size:15px;color:var(--ink-600)}
.mega-links li a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grass-500);flex:none}
.mega-links li a:hover{color:var(--brand-700)}
.mega-post{display:block;padding:10px 0;border-bottom:1px dashed var(--line)}
.mega-post:last-of-type{border-bottom:0}
.mega-post span{display:block;font-size:14px;color:var(--ink-900);font-weight:600;line-height:1.6}
.mega-post time{display:block;font-size:12px;color:var(--ink-400);font-variant-numeric:tabular-nums;margin-top:2px}
.mega-post:hover span{color:var(--brand-700)}
.mega-card{border:1px solid var(--line);border-radius:14px;padding:14px;background:var(--paper)}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:10px;background:#E4EDF7}
.mega-card p{font-size:13px;color:var(--ink-600);margin:12px 0 12px;line-height:1.7}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;padding:0;place-items:center;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .2s var(--ease),opacity .2s var(--ease);margin:0 auto}
.nav-toggle span+span{margin-top:4px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 面包屑 */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--ink-400)}
.breadcrumb a{color:var(--ink-400)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#C3D0DF}
.breadcrumb .current{color:var(--ink-900);font-weight:600}

/* 通用板块 */
.section{padding:64px 0}
.section-tight{padding:40px 0 64px}
.section-head{max-width:780px;margin-bottom:40px}
.section-head h2{position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:2px;background:var(--brand-600)}
.section-head p{margin-top:14px;color:var(--ink-600)}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border:1px solid transparent;border-radius:var(--radius-btn);background:var(--brand-600);color:#fff;font-size:16px;font-weight:600;cursor:pointer;transition:background-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.btn:hover{background:var(--brand-700);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.14)}
.btn:active{transform:translateY(1px)}
.btn-md{height:40px;padding:0 20px;font-size:15px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-ghost{background:#fff;color:var(--ink-900);border-color:var(--line)}
.btn-ghost:hover{background:#fff;color:var(--brand-700);border-color:var(--brand-500);box-shadow:var(--shadow-sm)}
.btn-on-dark{background:#fff;color:var(--brand-700)}
.btn-on-dark:hover{background:#EAF2FB;color:var(--brand-700)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn-text{display:inline-flex;align-items:center;gap:6px;padding:0;border:0;background:none;color:var(--brand-600);font-weight:600;cursor:pointer}
.btn-text svg{transition:transform .2s var(--ease)}
.btn-text:hover{color:var(--brand-700)}
.btn-text:hover svg{transform:translateX(3px)}

/* 徽章与标签 */
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em;background:var(--brand-050);color:var(--brand-700)}
.badge-grass{background:var(--grass-050);color:#0B7C56}
.badge-hot{background:#FDEEE4;color:#B85114}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--ink-600)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag-list li{padding:6px 12px;border-radius:999px;background:var(--brand-050);color:var(--brand-700);font-size:13px;font-weight:500}

/* 便当格首屏 */
.bento{padding:40px 0 0}
.bento-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bento-main{grid-column:span 8;grid-row:span 2;position:relative;min-height:440px;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);background:var(--ink-900)}
.bento-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.bento-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,33,54,.32) 0%,rgba(14,33,54,.74) 100%)}
.bento-overlay{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:flex-end;gap:16px;padding:40px;color:#fff}
.bento-overlay h1{color:#fff;max-width:16em}
.bento-overlay p{color:rgba(255,255,255,.88);max-width:34em;margin:0}
.bento-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
.bento-side{grid-column:span 4;display:flex;flex-direction:column;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.bento-side:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D5E2F1}
.bento-side h3{font-size:19px}
.bento-side p{font-size:15px;line-height:1.8;color:var(--ink-600);margin:0}
.bento-side .card-media{aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#E4EDF7}
.bento-side .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .2s var(--ease)}
.bento-side:hover .card-media img{transform:scale(1.03)}
.mini-stats{display:grid;gap:10px;margin-top:2px}
.mini-stats li{display:flex;align-items:baseline;gap:10px;padding-bottom:10px;border-bottom:1px dashed var(--line);font-size:14px;color:var(--ink-600)}
.mini-stats li:last-child{border-bottom:0;padding-bottom:0}
.mini-stats strong{color:var(--brand-700);font-size:16px;font-variant-numeric:tabular-nums;flex:none}

/* 场地线纹样 */
.field-line{position:relative;height:1px;max-width:360px;margin:40px auto 0;background:var(--brand-500);opacity:.45}
.field-line i{position:absolute;top:-3px;width:7px;height:7px;border-radius:50%;background:var(--grass-500)}
.field-line i:nth-child(1){left:18%}
.field-line i:nth-child(2){left:50%}
.field-line i:nth-child(3){left:82%}

/* 对照区 */
.compare{border-top:1px solid var(--line)}
.compare-head,.compare-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px;padding:20px 0;border-bottom:1px solid var(--line)}
.compare-head{padding:14px 0}
.compare-head span{font-size:13px;letter-spacing:.08em;color:var(--ink-400)}
.compare-head .compare-col{font-size:15px;font-weight:700;color:var(--ink-900);letter-spacing:.01em}
.compare-label{font-size:14px;color:var(--ink-400)}
.compare-row span:nth-child(2),.compare-row span:nth-child(3){font-size:15px;color:var(--ink-600)}
.compare-note{margin-top:20px;font-size:14px;color:var(--ink-400)}

/* 时间轴 */
.timeline{position:relative;padding-left:34px;margin:8px 0 0}
.timeline::before{content:"";position:absolute;left:6px;top:10px;bottom:10px;width:1px;background:#D6E2F0}
.tl-item{position:relative;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-34px;top:8px;width:13px;height:13px;border-radius:50%;background:#fff;border:3px solid var(--grass-500)}
.tl-step{font-size:12px;letter-spacing:.12em;color:var(--grass-500);font-weight:700;font-variant-numeric:tabular-nums}
.tl-item h3{margin:6px 0 8px;font-size:19px}
.tl-item p{font-size:15px;line-height:1.8;margin:0;max-width:60em}

/* 数据与配套 */
.cond-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:start}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.stat-card strong{display:block;font-size:clamp(28px,3vw,36px);line-height:1.1;color:var(--brand-700);font-variant-numeric:tabular-nums}
.stat-card span{display:block;margin-top:10px;font-size:14px;color:var(--ink-600);line-height:1.7}
.cond-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-sm)}
.cond-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.cond-media figcaption{padding:14px 18px;font-size:13px;color:var(--ink-400);border-top:1px solid var(--line)}
.cond-tags{margin-top:32px}
.cond-tags h3{margin-bottom:14px;font-size:19px}

/* FAQ */
.faq{border-top:1px solid var(--line);max-width:960px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 12px;background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--ink-900);cursor:pointer;transition:background-color .2s var(--ease)}
.faq-q:hover{background:#F7FAFE}
.faq-icon{position:relative;flex:none;width:20px;height:20px;transition:transform .25s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-600);border-radius:2px}
.faq-icon::before{left:9px;top:2px;width:2px;height:16px}
.faq-icon::after{left:2px;top:9px;width:16px;height:2px}
.faq-item.is-open .faq-icon{transform:rotate(90deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.is-open .faq-a{max-height:360px}
.faq-a p{padding:0 12px 20px;font-size:15px;line-height:1.85;color:var(--ink-600);max-width:62em}

/* CTA 与表单 */
.cta-panel{background:var(--ink-900);border-radius:20px;padding:44px;display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center;color:#fff}
.cta-panel h2{color:#fff}
.cta-panel p{color:rgba(255,255,255,.76);margin-top:14px;font-size:15px}
.subscribe-form{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-start}
.field{flex:1 1 260px;min-width:220px}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:8px}
.field .req{color:#FF9A6B;margin-left:4px}
.field input{width:100%;height:48px;padding:0 16px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);color:#fff;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.field input::placeholder{color:rgba(255,255,255,.45)}
.field input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 2px rgba(47,123,209,.35)}
.field.is-error input{border-color:#FF7A66}
.form-msg{flex-basis:100%;font-size:14px;min-height:20px}
.form-msg.error{color:#FF9A8A}
.form-msg.success{color:#7FE0B6}
.form-hint{flex-basis:100%;font-size:13px;color:rgba(255,255,255,.5)}

/* 状态样式 */
.state-empty{border:1px dashed var(--line);border-radius:var(--radius-card);background:#fff;padding:40px;text-align:center;color:var(--ink-400)}
.state-empty strong{display:block;color:var(--ink-900);font-size:17px;margin-bottom:8px}
.state-empty .btn{margin-top:18px}
.state-error{border:1px solid #F2B8B0;background:#FDF1EF;border-radius:var(--radius-card);padding:20px;color:#9C2F22;font-size:15px}
.skeleton{height:16px;border-radius:10px;background:linear-gradient(90deg,#EEF3FA 25%,#F7FAFE 37%,#EEF3FA 63%);background-size:400% 100%;animation:skeleton 1.4s ease infinite}
@keyframes skeleton{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* 页脚 */
.site-footer{background:var(--ink-900);color:#C4D2E1;margin-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding:56px 0 36px}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.04em}
.footer-logo{font-size:18px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:#9FB2C6;max-width:34em}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{position:relative;font-size:14px;color:#C4D2E1;padding-left:0;transition:padding-left .2s var(--ease),color .2s var(--ease)}
.footer-col ul a::before{content:"›";position:absolute;left:-12px;opacity:0;transition:opacity .2s var(--ease),left .2s var(--ease)}
.footer-col ul a:hover{color:#fff;padding-left:12px}
.footer-col ul a:hover::before{opacity:1;left:0}
.footer-col p{font-size:14px;color:#9FB2C6;line-height:1.85;margin-bottom:10px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding:20px 0 32px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#8DA1B6}
.footer-bottom p{margin:0}

/* 响应式 */
@media (max-width:1279px){
  .container{max-width:960px}
  .mega-panel{width:700px}
}
@media (max-width:1023px){
  .container{max-width:100%;padding:0 20px}
  .bento-main{grid-column:span 12;min-height:380px}
  .bento-side{grid-column:span 6}
  .cond-grid{grid-template-columns:1fr;gap:32px}
  .cta-panel{grid-template-columns:1fr;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:920px){
  .nav-toggle{display:grid}
  .nav{position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:4px;margin:0;padding:16px 20px 22px;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-card);display:none}
  .nav.is-open{display:flex}
  .header-inner{position:relative;justify-content:space-between}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{display:block;padding:12px 12px;font-size:16px}
  .nav-link.is-active::after{left:12px;right:auto;width:28px}
  .mega-panel{position:static;width:auto;grid-template-columns:1fr;gap:20px;opacity:1;visibility:visible;transform:none;box-shadow:none;border:1px solid var(--line);margin-top:12px;transition-delay:0s}
  .mega{margin-top:8px}
  .mega-trigger{width:100%;justify-content:space-between}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .bento{padding-top:28px}
  .bento-side{grid-column:span 12}
  .bento-overlay{padding:26px}
  .compare-head{display:none}
  .compare-row{grid-template-columns:1fr;gap:8px;padding:18px 0}
  .compare-row .compare-label{font-size:13px;letter-spacing:.06em}
  .stat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 28px}
  .timeline{padding-left:28px}
  .tl-item::before{left:-28px}
  .cta-panel{padding:28px;border-radius:16px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-text em{display:none}
  .bento-overlay{padding:20px}
  .bento-main{min-height:340px}
  .card,.stat-card,.bento-side{padding:18px}
  .bento-actions{flex-direction:column;align-items:stretch}
  .bento-actions .btn{width:100%}
  .btn{height:46px;font-size:15px}
  .faq-q{font-size:16px}
  .cta-panel{padding:22px}
}