/* roulang page: index */
:root{
  --c-bg:#F8F6F1;
  --c-surface:#FFFFFF;
  --c-ink:#121715;
  --c-ink-2:#46514D;
  --c-meta:#6B7A74;
  --c-line:#E4E1D8;
  --c-brand:#146B58;
  --c-brand-d:#0D4C3E;
  --c-brand-l:#E6F1ED;
  --c-accent:#D9722F;
  --c-accent-l:#FBEADF;
  --c-danger:#B4472F;
  --c-dark:#0E2C26;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,23,21,.06);
  --sh-2:0 14px 30px -18px rgba(18,23,21,.28);
  --sp-section:92px;
  --container:1200px;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--c-brand);text-decoration:none;transition:color .18s ease}
a:hover,a:focus{color:var(--c-brand-d);text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--c-ink)}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px}
.section{padding:var(--sp-section) 0}
.section--tight{padding:64px 0}
.section--surface{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section--dark{background:var(--c-dark);color:#E9F0ED}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);letter-spacing:.005em}
.section-head p{color:var(--c-ink-2);font-size:15px;margin:10px 0 0;max-width:640px}
.section-head--center{flex-direction:column;align-items:flex-start}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;white-space:nowrap;color:var(--c-brand)}
.link-more svg{transition:transform .18s ease}
.link-more:hover svg{transform:translateX(3px)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--c-brand)}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:block}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-dark);color:#C9D8D3;font-size:13px;line-height:36px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:36px;overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.topbar__inner::-webkit-scrollbar{display:none}
.topbar__note{margin:0;letter-spacing:.02em}
.topbar__links{display:flex;align-items:center;gap:22px}
.topbar__links a{color:#C9D8D3;font-size:13px}
.topbar__links a:hover,.topbar__links a:focus{color:#fff}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:saturate(150%) blur(8px);border-bottom:1px solid var(--c-line)}
.nav-inner{display:flex;align-items:center;gap:28px;min-height:70px}
.brand{display:flex;flex-direction:column;justify-content:center;line-height:1.1;padding:6px 0;flex:0 0 auto}
.brand__main{font-size:20px;font-weight:700;color:var(--c-ink);letter-spacing:.02em}
.brand__sub{font-size:12px;font-weight:500;letter-spacing:.24em;color:var(--c-brand);margin-top:3px}
.brand:hover .brand__main{color:var(--c-brand-d)}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto}
.nav-link{position:relative;display:inline-flex;align-items:center;gap:6px;padding:10px 14px;border-radius:8px;font-size:15px;font-weight:500;color:var(--c-ink-2);background:transparent;border:0;transition:color .18s ease,background .18s ease}
.nav-link:hover,.nav-link:focus-visible{color:var(--c-brand-d);background:var(--c-brand-l)}
.nav-link.is-active{color:var(--c-brand-d);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--c-brand);border-radius:2px}
.nav-item{position:relative}
.nav-trigger svg{transition:transform .18s ease}
.has-mega.is-open .nav-trigger svg{transform:rotate(180deg)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--c-line);border-radius:10px;background:#fff;color:var(--c-ink-2);transition:color .18s ease,border-color .18s ease}
.icon-btn:hover,.icon-btn:focus-visible{color:var(--c-brand);border-color:var(--c-brand)}
.nav-search{display:none;align-items:center}
.nav-search.is-open{display:flex}
.nav-search input{height:40px;width:210px;padding:0 12px;border:1px solid var(--c-line);border-radius:10px;background:#fff;font-size:14px;color:var(--c-ink)}
.nav-search input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 2px rgba(20,107,88,.15)}
.menu-btn{display:none;width:40px;height:40px;align-items:center;justify-content:center;border:1px solid var(--c-line);border-radius:10px;background:#fff;color:var(--c-ink-2)}

/* Mega 面板 */
.mega{position:absolute;top:calc(100% + 12px);left:0;width:min(920px,92vw);background:#fff;border:1px solid var(--c-line);border-radius:14px;box-shadow:0 24px 48px -24px rgba(18,23,21,.32);padding:26px;display:grid;grid-template-columns:1.1fr 1fr .95fr;gap:26px;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .16s ease,transform .16s ease,visibility .16s;z-index:70}
.has-mega:hover .mega,.has-mega:focus-within .mega,.has-mega.is-open .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega h4{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--c-meta);font-weight:600;margin-bottom:14px}
.mega-list li+li{margin-top:4px}
.mega-list a{display:block;padding:8px 10px;border-radius:9px;font-size:14.5px;color:var(--c-ink-2);transition:background .16s ease,color .16s ease,transform .16s ease}
.mega-list a:hover,.mega-list a:focus-visible{background:var(--c-brand-l);color:var(--c-brand-d);transform:translateX(2px)}
.mega-post{padding:10px;border-radius:10px;border:1px solid var(--c-line);transition:border-color .16s ease,background .16s ease}
.mega-post+.mega-post{margin-top:10px}
.mega-post:hover{border-color:var(--c-brand);background:var(--c-brand-l)}
.mega-post strong{display:block;font-size:14.5px;font-weight:600;color:var(--c-ink);line-height:1.5}
.mega-post span{display:block;font-size:12.5px;color:var(--c-meta);margin-top:4px}
.mega-card{position:relative;border-radius:12px;overflow:hidden;min-height:196px;display:flex;flex-direction:column;justify-content:flex-end;padding:18px;color:#fff}
.mega-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.mega-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,44,38,.25),rgba(14,44,38,.85))}
.mega-card p,.mega-card a{position:relative;z-index:2}
.mega-card p{font-size:13.5px;line-height:1.6;margin:0 0 12px;color:#DDE9E5}
.mega-card a{display:inline-flex;align-items:center;gap:6px;align-self:flex-start;font-size:13.5px;font-weight:600;color:#fff;border:1px solid rgba(255,255,255,.6);border-radius:999px;padding:7px 14px}
.mega-card a:hover{background:#fff;color:var(--c-brand-d)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;line-height:1;transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;text-align:center}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px -12px rgba(217,114,47,.8)}
.btn-primary:hover,.btn-primary:focus-visible{background:#C4641F;color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-outline:hover,.btn-outline:focus-visible{background:var(--c-brand-l);color:var(--c-brand-d)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.62);color:#fff}
.btn-ghost:hover,.btn-ghost:focus-visible{background:rgba(255,255,255,.14);color:#fff}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-block{width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--c-dark)}
.hero__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;aspect-ratio:21/9}
.hero__overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,38,32,.9) 8%,rgba(11,38,32,.62) 52%,rgba(11,38,32,.42) 100%)}
.hero__inner{position:relative;z-index:2;padding:104px 24px 118px;color:#fff;max-width:var(--container);margin:0 auto}
.hero__kicker{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;letter-spacing:.16em;color:#B8D3CA;border:1px solid rgba(184,211,202,.4);border-radius:999px;padding:7px 16px;margin-bottom:26px}
.hero__title{font-family:var(--font-serif);font-size:clamp(30px,4.2vw,42px);line-height:1.25;color:#fff;max-width:19ch;letter-spacing:.01em}
.hero__sub{margin:20px 0 0;font-size:18px;line-height:1.75;color:#D7E5E0;max-width:34ch}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero__float{position:absolute;right:24px;bottom:24px;z-index:3;display:flex;gap:0;flex-wrap:wrap;background:rgba(248,246,241,.14);border:1px solid rgba(248,246,241,.28);border-radius:14px;backdrop-filter:blur(6px);overflow:hidden}
.hero__float li{padding:14px 22px;color:#fff;text-align:center;min-width:132px}
.hero__float li+li{border-left:1px solid rgba(248,246,241,.22)}
.hero__float strong{display:block;font-size:17px;font-weight:700}
.hero__float span{display:block;font-size:12.5px;color:#CFE0DB;margin-top:2px}

/* ---------- 目录 + 简介 ---------- */
.toc{position:sticky;top:104px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.toc h3{font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:var(--c-meta);margin-bottom:16px}
.toc ol{counter-reset:toc}
.toc li+li{margin-top:6px}
.toc a{display:flex;gap:12px;align-items:baseline;padding:10px 12px;border-radius:10px;font-size:15px;color:var(--c-ink-2);transition:background .16s ease,color .16s ease}
.toc a:hover,.toc a:focus-visible{background:var(--c-brand-l);color:var(--c-brand-d)}
.toc a b{font-family:system-ui,sans-serif;font-size:13px;font-weight:700;color:var(--c-accent)}
.intro-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:34px;box-shadow:var(--sh-1)}
.intro-card h2{font-size:clamp(24px,2.4vw,30px);margin-bottom:16px}
.intro-card p{color:var(--c-ink-2);font-size:16px}
.intro-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:26px 0 28px;padding:22px 0;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.intro-facts strong{display:block;font-size:22px;font-family:system-ui,sans-serif;color:var(--c-brand);font-weight:700}
.intro-facts span{display:block;font-size:13.5px;color:var(--c-meta);margin-top:4px}

/* ---------- 卡片 ---------- */
.card{display:flex;flex-direction:column;height:100%;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card:hover,.card:focus-within{transform:translateY(-3px);border-color:var(--c-brand);box-shadow:var(--sh-2)}
.card:hover .card__title{color:var(--c-brand)}
.card__media{position:relative;overflow:hidden;background:var(--c-brand-l)}
.card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.card:hover .card__media img{transform:scale(1.03)}
.card--tall .card__media img{aspect-ratio:4/3}
.badge{position:absolute;top:12px;left:12px;display:inline-flex;align-items:center;background:var(--c-brand-l);color:var(--c-brand-d);font-size:13px;font-weight:600;padding:5px 12px;border-radius:999px}
.badge--accent{background:var(--c-accent-l);color:#9E4A14}
.badge--on-media{background:rgba(255,255,255,.92);color:var(--c-brand-d)}
.card__body{display:flex;flex-direction:column;flex:1 1 auto;padding:22px}
.card__index{font-family:system-ui,sans-serif;font-size:13px;font-weight:700;color:var(--c-accent);letter-spacing:.1em}
.card__title{font-size:19px;line-height:1.45;margin:10px 0 10px;transition:color .18s ease}
.card__desc{font-size:15px;color:var(--c-ink-2);margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card__foot{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-meta);padding-top:14px;border-top:1px solid var(--c-line)}
.card__foot .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line)}

/* ---------- 最新信息 ---------- */
.news-card{display:flex;flex-direction:column;height:100%;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.news-card:hover,.news-card:focus-visible{transform:translateY(-3px);border-color:var(--c-brand);box-shadow:var(--sh-2)}
.news-card__media{position:relative;overflow:hidden;background:var(--c-brand-l)}
.news-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.news-card__body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto}
.news-card__title{font-size:17.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px;transition:color .18s ease}
.news-card:hover .news-card__title{color:var(--c-brand)}
.news-card__desc{font-size:14.5px;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin:0 0 16px}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-meta);padding-top:14px;border-top:1px solid var(--c-line)}
.news-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line)}
.news-grid>*{margin-bottom:24px}
.empty-state{min-height:220px;background:var(--c-bg);border:1px dashed var(--c-line);border-radius:var(--r-card);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:36px 20px}
.empty-state svg{color:var(--c-brand)}
.empty-state p{margin:0;color:var(--c-ink-2);font-size:15px}

/* ---------- 图文深读 ---------- */
.deep-grid{display:flex;align-items:center;gap:56px;flex-wrap:wrap}
.deep-grid__media{flex:1 1 380px;min-width:280px}
.deep-grid__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:18px;border:1px solid var(--c-line)}
.deep-grid__text{flex:1 1 340px;min-width:260px}
.deep-grid--reverse{flex-direction:row-reverse}
.point-list{margin-top:26px}
.point-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--c-line)}
.point-list li:last-child{border-bottom:0}
.point-list b{flex:0 0 auto;font-family:system-ui,sans-serif;font-size:13px;font-weight:700;color:var(--c-accent);padding-top:5px}
.point-list strong{display:block;font-size:16.5px;font-weight:600;margin-bottom:4px}
.point-list span{font-size:14.5px;color:var(--c-ink-2);line-height:1.75}

/* ---------- 分类入口 ---------- */
.entry-card{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:260px;border-radius:var(--r-card);overflow:hidden;padding:26px;color:#fff;border:1px solid var(--c-line)}
.entry-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.entry-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,44,38,.2),rgba(14,44,38,.86))}
.entry-card>*{position:relative;z-index:2}
.entry-card h3{color:#fff;font-size:21px;margin-bottom:10px}
.entry-card p{color:#D9E6E2;font-size:14.5px;margin:0 0 16px;max-width:32ch}
.entry-card span{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:#fff;border-bottom:1px solid rgba(255,255,255,.6);padding-bottom:2px;align-self:flex-start}
.entry-card:hover span{color:#fff;border-color:#fff}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 20px;font-size:17px;font-weight:600;color:var(--c-ink);transition:background .18s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;width:26px;height:26px;display:flex;align-items:center;justify-content:center;border:1px solid var(--c-line);border-radius:8px;font-size:17px;font-weight:500;color:var(--c-brand);transition:transform .2s ease,background .2s ease}
.faq-item[open] summary{background:var(--c-bg);box-shadow:inset 3px 0 0 var(--c-brand)}
.faq-item[open] summary::after{content:"–";background:var(--c-brand);color:#fff;border-color:var(--c-brand)}
.faq-item summary:hover{background:var(--c-bg)}
.faq-answer{padding:16px 20px 24px;font-size:16px;line-height:1.85;color:var(--c-ink-2)}

/* ---------- CTA 条 ---------- */
.cta-bar{background:var(--c-brand-l);border:1px solid #CFE3DC;border-radius:var(--r-card);padding:28px 32px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-bar__text strong{display:block;font-size:19px;font-weight:700;margin-bottom:6px}
.cta-bar__text span{font-size:14.5px;color:var(--c-ink-2)}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.ghost-btn{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;border-radius:var(--r-btn);border:1px solid var(--c-brand);background:transparent;color:var(--c-brand);font-size:14.5px;font-weight:600;transition:background .18s ease,color .18s ease,transform .18s ease}
.ghost-btn:hover,.ghost-btn:focus-visible{background:#fff;color:var(--c-brand-d);transform:translateY(-1px)}
.ghost-btn.is-on{background:var(--c-brand);color:#fff;border-color:var(--c-brand)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:#C7D6D1;padding:70px 0 0;margin-top:0}
.footer-grid>.cell{margin-bottom:36px}
.footer-brand{display:flex;flex-direction:column;line-height:1.15;margin-bottom:16px}
.footer-brand__main{font-size:20px;font-weight:700;color:#fff}
.footer-brand__sub{font-size:12px;letter-spacing:.24em;color:#7FBEA9;margin-top:4px}
.site-footer p{font-size:14px;line-height:1.8;color:#A9BDB7;margin:0 0 12px}
.site-footer h4{font-size:14px;letter-spacing:.1em;color:#fff;margin-bottom:16px}
.footer-links li+li{margin-top:10px}
.footer-links a{font-size:14.5px;color:#B9CBC6}
.footer-links a:hover,.footer-links a:focus-visible{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.footer-bottom p{margin:0;font-size:13px;color:#8FA6A0}

/* ---------- 提示 ---------- */
.toast{position:fixed;left:50%;bottom:32px;transform:translate(-50%,16px);background:var(--c-dark);color:#fff;font-size:14px;padding:12px 22px;border-radius:999px;opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;z-index:120}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1279px){
  :root{--sp-section:80px}
}
@media screen and (max-width:1024px){
  :root{--sp-section:64px}
  .nav-inner{gap:16px}
  .menu-btn{display:inline-flex}
  .main-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:0 20px 30px -22px rgba(18,23,21,.3);flex-direction:column;align-items:stretch;gap:2px;padding:12px 20px 20px;display:none}
  .main-nav.is-open{display:flex}
  .nav-link{padding:13px 12px;font-size:16px}
  .nav-link.is-active::after{left:12px;right:auto;width:26px;bottom:8px}
  .mega{position:static;width:100%;opacity:1;visibility:visible;transform:none;display:none;grid-template-columns:1fr;gap:18px;margin-top:6px;box-shadow:none;border-radius:12px}
  .has-mega.is-open .mega{display:grid}
  .has-mega:hover .mega{display:none}
  .has-mega.is-open:hover .mega{display:grid}
  .nav-search input{width:150px}
  .hero__float{position:static;margin-top:32px;display:inline-flex}
  .hero__inner{padding:78px 24px 72px}
  .toc{position:static;margin-bottom:24px}
  .intro-facts{grid-template-columns:repeat(3,1fr);gap:12px}
  .deep-grid{gap:34px}
}
@media screen and (max-width:640px){
  :root{--sp-section:52px}
  body{font-size:16px}
  .container{padding:0 20px}
  .topbar__inner{gap:14px}
  .topbar__note{font-size:12.5px}
  .nav-actions{gap:8px}
  .nav-search input{width:120px}
  .btn-sm{display:none}
  .hero__inner{padding:60px 20px 58px}
  .hero__title{max-width:none}
  .hero__sub{font-size:16px;max-width:none}
  .hero__cta{flex-direction:column;align-items:stretch}
  .hero__cta .btn{width:100%}
  .hero__float{width:100%;display:flex}
  .hero__float li{flex:1 1 0;min-width:0;padding:12px 8px}
  .hero__float strong{font-size:15px}
  .hero__float span{font-size:11.5px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .intro-card{padding:24px}
  .intro-facts{grid-template-columns:1fr;gap:16px}
  .cta-bar{padding:24px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .ghost-btn{flex:1 1 auto;justify-content:center}
  .faq-item summary{font-size:16px;padding:18px 14px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: article */
:root{
  --c-bg:#F8F6F1;
  --c-surface:#FFFFFF;
  --c-ink:#121715;
  --c-ink-2:#46514D;
  --c-meta:#6B7A74;
  --c-line:#E4E1D8;
  --c-brand:#146B58;
  --c-brand-d:#0D4C3E;
  --c-brand-l:#E6F1ED;
  --c-accent:#D9722F;
  --c-accent-l:#FBEADF;
  --c-danger:#B4472F;
  --c-deep:#0E2C26;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-sm:0 1px 2px rgba(18,23,21,.06);
  --shadow-md:0 14px 30px -18px rgba(18,23,21,.28);
  --container:1200px;
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC",Georgia,"Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-brand);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--c-brand-d)}
p{margin:0 0 1.2em}
ul,ol{margin:0 0 1.2em;padding-left:1.2em}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:var(--c-ink);line-height:1.35}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}
.grid-x{display:flex;flex-flow:row wrap}
.gutter-24{margin-left:-12px;margin-right:-12px}
.gutter-24>.cell{padding-left:12px;padding-right:12px}
.cell{flex:0 0 auto;min-width:0;width:100%}
.small-6{width:50%}
.small-12{width:100%}
@media screen and (min-width:641px){.medium-4{width:33.3333%}.medium-6{width:50%}.medium-12{width:100%}}
@media screen and (min-width:1025px){.large-2{width:16.6667%}.large-3{width:25%}.large-4{width:33.3333%}.large-5{width:41.6667%}.large-7{width:58.3333%}.large-8{width:66.6667%}}

/* ---------- 顶部信息条 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid var(--c-line);box-shadow:0 1px 0 rgba(18,23,21,.02)}
.topbar{height:36px;background:var(--c-deep);color:rgba(255,255,255,.82);font-size:13px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px}
.topbar__note{margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__links{display:flex;align-items:center;gap:18px;white-space:nowrap;overflow-x:auto;scrollbar-width:none}
.topbar__links::-webkit-scrollbar{display:none}
.topbar__links a{color:rgba(255,255,255,.82);font-size:13px}
.topbar__links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}

/* ---------- 主导航 ---------- */
.navbar{background:var(--c-surface)}
.navbar__inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:flex;flex-direction:column;line-height:1.15;padding:6px 0;flex:0 0 auto}
.brand__main{font-size:20px;font-weight:700;letter-spacing:.02em;color:var(--c-brand)}
.brand__sub{font-size:12px;font-weight:500;letter-spacing:.22em;color:var(--c-ink-2)}
.mainnav{flex:1 1 auto}
.mainnav__list{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.mainnav__list>li{position:relative}
.mainnav__link{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 12px;border-radius:8px;border:0;background:transparent;
  font-size:15px;font-weight:500;color:var(--c-ink-2);cursor:pointer;position:relative;
}
.mainnav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--c-brand);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.mainnav__link:hover{color:var(--c-brand);background:var(--c-brand-l)}
.mainnav__link:hover::after{transform:scaleX(1)}
.mainnav__link.is-active{color:var(--c-ink);font-weight:600}
.mainnav__link.is-active::after{transform:scaleX(1)}
.mainnav__trigger i{font-size:11px;color:var(--c-meta)}
.navactions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);border-radius:var(--r-btn);background:var(--c-surface);
  color:var(--c-ink-2);cursor:pointer;transition:all .18s ease;
}
.icon-btn:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-l)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--c-accent);color:#fff;box-shadow:var(--shadow-sm)}
.btn--primary:hover{background:#c4641f;color:#fff;transform:translateY(-1px)}
.btn--primary:active{transform:none}
.btn--ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn--ghost:hover{background:var(--c-brand-l);color:var(--c-brand-d)}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px}
.navtoggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:var(--c-surface);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.navtoggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}

/* 搜索条 */
.searchbar{display:none;border-top:1px solid var(--c-line);background:var(--c-bg)}
.searchbar.is-open{display:block}
.searchbar__inner{display:flex;align-items:center;gap:12px;padding-top:14px;padding-bottom:14px}
.searchbar input{
  flex:1 1 auto;height:44px;padding:0 14px;border:1px solid var(--c-line);
  border-radius:var(--r-btn);background:var(--c-surface);font-size:15px;color:var(--c-ink);
}
.searchbar input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(20,107,88,.15)}

/* Mega 面板 */
.mega{
  position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(8px);
  width:min(920px,92vw);background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:0 24px 50px -26px rgba(18,23,21,.4);
  padding:24px;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .16s ease,transform .16s ease,visibility .16s;
  z-index:70;
}
.has-mega:hover .mega,.has-mega:focus-within .mega,.mega.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.mega__grid{display:flex;gap:24px}
.mega__col{flex:1 1 0;min-width:0}
.mega__col--wide{flex:0 0 260px}
.mega__title{font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--c-meta);margin:0 0 12px;text-transform:uppercase}
.mega__links{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:2px}
.mega__links a{display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--c-ink-2)}
.mega__links a:hover{background:var(--c-brand-l);color:var(--c-brand);transform:translateX(2px)}
.mega__latest{list-style:none;margin:0;padding:0}
.mega__latest li{padding:10px 0;border-bottom:1px dashed var(--c-line)}
.mega__latest li:last-child{border-bottom:0}
.mega__latest a{display:block;font-size:14px;font-weight:500;color:var(--c-ink)}
.mega__latest a:hover{color:var(--c-brand)}
.mega__latest span{display:block;font-size:12px;color:var(--c-meta);margin-top:2px}
.mega__card{
  position:relative;border-radius:var(--r-img);overflow:hidden;min-height:180px;
  display:flex;flex-direction:column;justify-content:flex-end;padding:16px;color:#fff;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.mega__card::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,44,38,.25),rgba(14,44,38,.82))}
.mega__card>*{position:relative;z-index:1}
.mega__card p{font-size:13px;margin:0 0 12px;color:rgba(255,255,255,.86);line-height:1.6}
.mega__card .btn{min-height:38px;padding:0 16px;font-size:13px;background:#fff;color:var(--c-brand-d)}
.mega__card .btn:hover{background:var(--c-brand-l)}
.mega-backdrop{display:none}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:22px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;font-size:13px;color:var(--c-meta)}
.breadcrumb li{display:flex;align-items:center;gap:8px;max-width:100%}
.breadcrumb li+li::before{content:"/";color:var(--c-line)}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .current{color:var(--c-meta);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:46vw}

/* ---------- 文章标题区 ---------- */
.article-head{padding:14px 0 0}
.article-head__box{border-bottom:1px solid var(--c-line);padding-bottom:26px}
.article-head__row{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;flex-wrap:wrap}
.article-head h1{
  font-size:clamp(26px,3.4vw,40px);line-height:1.3;font-weight:700;letter-spacing:.01em;
  max-width:820px;margin:0 0 16px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--c-meta);margin:0;padding:0;list-style:none}
.article-meta li{display:flex;align-items:center;gap:8px}
.article-meta li+li::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--c-line)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;
  background:var(--c-brand-l);color:var(--c-brand);font-size:13px;font-weight:600;line-height:1;
}
.badge--accent{background:var(--c-accent-l);color:#A8541C}
.badge--seal{background:transparent;border:1px solid var(--c-brand);color:var(--c-brand);border-radius:4px;font-size:12px;padding:5px 9px}
.head-tools{display:flex;gap:10px;flex-wrap:wrap}
.head-tools .icon-btn{width:auto;height:40px;padding:0 14px;gap:8px;font-size:14px;font-weight:500}

/* ---------- 正文布局 ---------- */
.article-wrap{padding:40px 0 72px}
.article-layout{display:flex;justify-content:center;align-items:flex-start;gap:56px}
.article-main{width:100%;max-width:760px;min-width:0}
.article-toc{
  flex:0 0 220px;width:220px;position:sticky;top:104px;
  border-left:1px solid var(--c-line);padding-left:20px;
}
.article-toc h2{font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--c-meta);margin:0 0 14px;text-transform:uppercase}
.article-toc ol{list-style:none;margin:0;padding:0;counter-reset:toc}
.article-toc li{margin:0 0 10px;counter-increment:toc}
.article-toc a{
  display:block;font-size:14px;line-height:1.6;color:var(--c-ink-2);
  padding:4px 0 4px 12px;border-left:2px solid transparent;margin-left:-2px;
}
.article-toc a::before{content:counter(toc,decimal-leading-zero);font-size:12px;color:var(--c-meta);margin-right:8px;font-variant-numeric:tabular-nums}
.article-toc a:hover{color:var(--c-brand)}
.article-toc a.is-current{color:var(--c-brand);font-weight:600;border-left-color:var(--c-brand)}

.lead-note{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--c-surface);border:1px solid var(--c-line);border-left:3px solid var(--c-brand);
  border-radius:var(--r-card);padding:16px 18px;margin:0 0 32px;box-shadow:var(--shadow-sm);
}
.lead-note i{color:var(--c-brand);font-size:16px;margin-top:4px}
.lead-note p{margin:0;font-size:14px;color:var(--c-ink-2);line-height:1.75}

.article-body{font-size:17px;line-height:1.9;letter-spacing:.01em;color:var(--c-ink)}
.article-body>*:first-child{font-size:18px;line-height:1.9;color:var(--c-ink);border-left:3px solid var(--c-brand);padding-left:18px}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-size:clamp(22px,2.4vw,24px);line-height:1.4;margin:48px 0 16px;padding-left:14px;
  border-left:4px solid var(--c-brand);
}
.article-body h3{font-size:19px;line-height:1.5;margin:32px 0 12px;color:var(--c-ink)}
.article-body h4{font-size:17px;margin:24px 0 10px}
.article-body a{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--c-accent)}
.article-body ul,.article-body ol{padding-left:1.3em;line-height:1.8}
.article-body li{margin-bottom:8px}
.article-body blockquote{
  margin:28px 0;padding:18px 20px;background:var(--c-brand-l);border-left:3px solid var(--c-brand);
  border-radius:0 var(--r-card) var(--r-card) 0;color:var(--c-ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:28px 0 10px;width:100%;object-fit:cover}
.article-body figure{margin:28px 0}
.article-body figcaption{font-size:13px;color:var(--c-meta);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--c-line);text-align:left}
.article-body th{background:var(--c-brand-l);color:var(--c-brand-d);font-weight:600;font-size:14px}
.article-body tr:last-child td{border-bottom:0}
.article-body code{background:var(--c-brand-l);color:var(--c-brand-d);padding:2px 6px;border-radius:6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:40px 0}

.empty-state{
  min-height:220px;background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:40px 24px;
}
.empty-state i{font-size:30px;color:var(--c-brand)}
.empty-state p{margin:0;font-size:15px;color:var(--c-ink-2)}

/* ---------- 文末 ---------- */
.article-foot{padding:0 0 80px}
.foot-block{max-width:760px;margin:0 auto}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:22px 0;border-top:1px solid var(--c-line)}
.tag-row strong{font-size:13px;color:var(--c-meta);font-weight:600;letter-spacing:.08em;margin-right:4px}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:999px;
  background:var(--c-surface);border:1px solid var(--c-line);font-size:13px;color:var(--c-ink-2);
  transition:all .18s ease;
}
.chip:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-l);transform:translateY(-1px)}
.chip.is-active{background:var(--c-brand);border-color:var(--c-brand);color:#fff}

.share-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:var(--c-brand-l);border:1px solid #CFE3DC;border-radius:var(--r-card);
  padding:24px 26px;margin:28px 0 0;
}
.share-bar__text h3{font-size:18px;margin:0 0 6px}
.share-bar__text p{margin:0;font-size:14px;color:var(--c-ink-2)}
.share-bar__btns{display:flex;gap:10px;flex-wrap:wrap}
.share-bar .btn--ghost{background:rgba(255,255,255,.7)}
.share-bar .btn--ghost:hover{background:#fff}
.share-bar .btn.is-done{background:var(--c-brand);color:#fff;border-color:var(--c-brand)}

.related{margin-top:56px}
.related__head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px}
.related__head h2{font-size:22px}
.related__head p{margin:6px 0 0;font-size:14px;color:var(--c-meta)}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-brand)}
.link-more i{transition:transform .18s ease}
.link-more:hover i{transform:translateX(3px)}
.link-more:hover{text-decoration:underline;text-underline-offset:4px}
.mini-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;height:100%;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.mini-card:hover{transform:translateY(-3px);border-color:var(--c-brand);box-shadow:var(--shadow-md)}
.mini-card__thumb{aspect-ratio:16/10;width:100%;object-fit:cover;background:var(--c-brand-l)}
.mini-card__body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.mini-card__body h3{font-size:16px;line-height:1.55}
.mini-card:hover h3{color:var(--c-brand)}
.mini-card__meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-meta);margin-top:auto}
.mini-card__meta span+span::before{content:"";display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--c-line);margin-right:8px;vertical-align:middle}
.back-row{margin-top:32px;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.76);padding:64px 0 0;margin-top:0}
.footer-grid{gap:32px 0}
.footer-brand{display:flex;flex-direction:column;line-height:1.15;margin-bottom:16px}
.footer-brand__main{font-size:20px;font-weight:700;color:#fff}
.footer-brand__sub{font-size:12px;font-weight:500;letter-spacing:.22em;color:#8FBFAF}
.site-footer h4{font-size:14px;font-weight:600;letter-spacing:.1em;color:#fff;margin:0 0 16px}
.site-footer p{font-size:14px;line-height:1.85;margin:0 0 12px}
.site-footer a{color:rgba(255,255,255,.76)}
.site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px;font-size:14px}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13px;color:rgba(255,255,255,.58)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .article-toc{display:none}
  .article-layout{gap:0}
}
@media screen and (max-width:1024px){
  .mainnav{
    position:fixed;top:0;left:0;right:0;bottom:0;background:var(--c-surface);
    padding:88px 24px 40px;overflow-y:auto;transform:translateX(-100%);
    transition:transform .24s ease;z-index:65;box-shadow:var(--shadow-md);
  }
  .mainnav.is-open{transform:translateX(0)}
  .mainnav__list{flex-direction:column;align-items:stretch;gap:4px}
  .mainnav__link{width:100%;justify-content:space-between;padding:14px 12px;font-size:16px;border-bottom:1px solid var(--c-line);border-radius:0}
  .mainnav__link::after{display:none}
  .mainnav__link.is-active{color:var(--c-brand);border-bottom-color:var(--c-brand)}
  .mega{
    position:static;transform:none;width:100%;opacity:1;visibility:visible;pointer-events:auto;
    box-shadow:none;border:0;border-bottom:1px solid var(--c-line);padding:8px 0 20px;display:none;
  }
  .has-mega:hover .mega{display:none}
  .mega.is-open{display:block}
  .mega__grid{flex-direction:column}
  .mega__col--wide{flex:1 1 auto}
  .navtoggle{display:flex}
  .navtoggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .navtoggle.is-open span:nth-child(2){opacity:0}
  .navtoggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .navactions .btn--primary{display:none}
}
@media screen and (max-width:640px){
  body{font-size:16px;line-height:1.85}
  .container{padding-left:20px;padding-right:20px}
  .topbar__inner{gap:12px}
  .topbar__note{max-width:52%}
  .navbar__inner{min-height:64px;gap:12px}
  .brand__main{font-size:18px}
  .brand__sub{font-size:11px;letter-spacing:.18em}
  .article-head h1{font-size:24px}
  .breadcrumb .current{max-width:60vw}
  .article-wrap{padding:28px 0 52px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:36px}
  .share-bar{flex-direction:column;align-items:flex-start}
  .share-bar__btns{width:100%}
  .share-bar__btns .btn{flex:1 1 auto}
  .back-row .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category1 */
:root{
  --c-bg:#F8F6F1; --c-surface:#FFFFFF; --c-ink:#121715; --c-ink-2:#46514D;
  --c-meta:#6B7A74; --c-line:#E4E1D8; --c-brand:#146B58; --c-brand-d:#0D4C3E;
  --c-brand-l:#E6F1ED; --c-accent:#D9722F; --c-accent-l:#FBEADF; --c-danger:#B4472F;
  --c-deep:#0E2C26;
  --r-card:14px; --r-btn:10px; --r-input:10px; --r-img:12px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,23,21,.06);
  --sh-2:0 14px 30px -18px rgba(18,23,21,.28);
  --sh-3:0 28px 56px -26px rgba(18,23,21,.36);
  --gap-section:96px; --container:1200px;
  --font-cn:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:var(--font-cn);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-brand-d)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
section{position:relative}
.section-pad{padding:var(--gap-section) 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3;font-weight:700;letter-spacing:.01em}
.section-head h2::before{content:"";display:inline-block;width:4px;height:.82em;background:var(--c-brand);border-radius:2px;margin-right:12px;vertical-align:-.06em}
.section-head p{color:var(--c-ink-2);font-size:15px;margin-top:8px}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--c-deep);color:#D8E4E0;font-size:13px;line-height:36px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.topbar__inner::-webkit-scrollbar{display:none}
.topbar__note{margin:0;flex:0 0 auto;color:#B9CCC6}
.topbar__links{display:flex;gap:20px;flex:0 0 auto}
.topbar__links a{color:#EAF2EF;font-size:13px;display:inline-block;transition:color .18s ease,transform .18s ease}
.topbar__links a:hover{color:#fff;transform:translateY(-1px)}

/* ---------- 导航 ---------- */
.navbar{position:sticky;top:0;z-index:60;background:rgba(248,246,241,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--c-line)}
.navbar__inner{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:flex;flex-direction:column;line-height:1.1;flex:0 0 auto;padding:6px 0}
.brand__main{font-size:20px;font-weight:700;letter-spacing:.02em;color:var(--c-brand)}
.brand__sub{font-size:12px;font-weight:500;letter-spacing:.22em;color:var(--c-ink)}
.mainnav{flex:1 1 auto;min-width:0;overflow-x:auto;scrollbar-width:none}
.mainnav::-webkit-scrollbar{display:none}
.mainnav__list{display:flex;align-items:center;gap:8px;margin:0}
.mainnav__list>li{flex:0 0 auto}
.mainnav__list>li>a,.mainnav__mega{
  display:inline-block;padding:10px 14px;font-size:15px;font-weight:500;color:var(--c-ink-2);
  background:transparent;border:0;border-radius:var(--r-btn);cursor:pointer;position:relative;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.mainnav__list>li>a:hover,.mainnav__mega:hover{color:var(--c-brand);background:var(--c-brand-l)}
.mainnav__list>li>a.is-active{color:var(--c-brand);font-weight:600}
.mainnav__list>li>a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--c-brand);border-radius:2px}
.mega-host{position:static}
.mainnav__mega::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:10px;margin-left:6px;color:var(--c-meta)}
.mega-host.is-open .mainnav__mega{color:var(--c-brand);background:var(--c-brand-l)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--c-line);background:var(--c-surface);border-radius:var(--r-btn);color:var(--c-ink-2);cursor:pointer;transition:all .18s ease}
.icon-btn:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-l)}

/* ---------- Mega 面板 ---------- */
.mega-panel{
  position:absolute;top:calc(100% + 8px);left:50%;
  width:min(920px,92vw);
  transform:translate(-50%,6px);
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-3);padding:26px;
  display:grid;grid-template-columns:1.05fr 1fr .95fr;gap:26px;
  opacity:0;visibility:hidden;
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
  z-index:80;
}
.mega-host:hover .mega-panel,.mega-host:focus-within .mega-panel,.mega-party.is-open .mega-panel{opacity:1;visibility:visible;transform:translate(-50%,0)}
.mega-col h3{font-size:13px;font-weight:600;color:var(--c-meta);letter-spacing:.14em;margin-bottom:14px}
.mega-links li+li{margin-top:4px}
.mega-links a{display:block;padding:8px 10px;border-radius:8px;font-size:14.5px;color:var(--c-ink-2);transition:background .18s ease,color .18s ease,transform .18s ease}
.mega-links a:hover{background:var(--c-brand-l);color:var(--c-brand);transform:translateX(2px)}
.mega-news li{padding:10px 0;border-bottom:1px dashed var(--c-line)}
.mega-news li:last-child{border-bottom:0}
.mega-news a{font-size:14.5px;color:var(--c-ink);display:block;line-height:1.6}
.mega-news a:hover{color:var(--c-brand)}
.mega-news time{display:block;font-size:12.5px;color:var(--c-meta);margin-top:4px}
.mega-card{position:relative;border-radius:var(--r-card);overflow:hidden;min-height:210px;display:flex;flex-direction:column;justify-content:flex-end;padding:20px;color:#fff}
.mega-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.mega-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,44,38,.45),rgba(14,44,38,.86));z-index:1}
.mega-card>*{position:relative;z-index:2}
.mega-card p{font-size:14px;line-height:1.7;color:#E4EEEB;margin-bottom:14px}

/* ---------- 搜索条 ---------- */
.searchbar{display:none;border-top:1px solid var(--c-line);background:var(--c-surface);padding:16px 0}
.searchbar.is-open{display:block}
.searchbar__form{display:flex;gap:12px;align-items:center}
.searchbar__form input{
  flex:1 1 auto;height:44px;padding:0 16px;border:1px solid var(--c-line);border-radius:var(--r-input);
  font-size:15px;color:var(--c-ink);background:var(--c-bg);transition:border-color .18s ease,box-shadow .18s ease;
}
.searchbar__form input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(20,107,88,.15);background:#fff}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn--primary:hover{background:#C2631F;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn--ghost:hover{background:var(--c-brand-l);color:var(--c-brand-d);border-color:var(--c-brand-d)}
.btn--sm{height:40px;padding:0 16px;font-size:14px}
.btn--light{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5);color:#fff}
.btn--light:hover{background:rgba(255,255,255,.24);color:#fff}
.textlink{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-brand)}
.textlink i{transition:transform .18s ease;font-size:12px}
.textlink:hover{text-decoration:underline}
.textlink:hover i{transform:translateX(3px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-block;padding:4px 12px;border-radius:var(--r-pill);background:var(--c-brand-l);color:var(--c-brand);font-size:12.5px;font-weight:600;letter-spacing:.02em}
.badge--accent{background:var(--c-accent-l);color:#9E4E17}
.chip{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-2);
  font-size:14px;font-weight:500;transition:all .18s ease;
}
.chip:hover{border-color:var(--c-brand);color:var(--c-brand)}
.chip.is-active{background:var(--c-brand);border-color:var(--c-brand);color:#fff}

/* ---------- 内页标题带 ---------- */
.page-hero{position:relative;min-height:210px;display:flex;align-items:center;overflow:hidden;border-radius:0 0 18px 18px}
.page-hero__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(13,76,62,.86) 0%,rgba(14,44,38,.66) 58%,rgba(14,44,38,.5) 100%);z-index:1}
.page-hero__inner{position:relative;z-index:2;padding-top:40px;padding-bottom:44px;color:#fff}
.breadcrumb{font-size:13px;color:#C4D8D2;margin-bottom:14px}
.breadcrumb a{color:#DCEBE6}
.breadcrumb a:hover{color:#fff}
.breadcrumb span+span::before{content:"/";margin:0 8px;color:#8FB3AA}
.page-hero h1{font-family:var(--font-serif);font-size:clamp(28px,4vw,40px);line-height:1.28;font-weight:700;color:#fff;max-width:20em}
.page-hero p{margin-top:14px;font-size:16px;line-height:1.8;color:#DBE9E5;max-width:46em}

/* ---------- 筛选条 ---------- */
.chipbar{position:sticky;top:72px;z-index:40;background:rgba(248,246,241,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--c-line);padding:14px 0}
.chipbar__inner{display:flex;align-items:center;gap:16px;overflow-x:auto;scrollbar-width:none}
.chipbar__inner::-webkit-scrollbar{display:none}
.chipbar__label{flex:0 0 auto;font-size:13px;color:var(--c-meta);letter-spacing:.08em}
.chips{display:flex;gap:10px;flex:0 0 auto}

/* ---------- 条目流 ---------- */
.entry-list{border-top:1px solid var(--c-line)}
.entry{display:grid;grid-template-columns:118px minmax(0,1fr);gap:26px;padding:38px 0;border-bottom:1px dashed var(--c-line)}
.entry__index{font-family:system-ui,sans-serif;font-size:clamp(46px,5.4vw,70px);font-weight:800;line-height:1;color:rgba(20,107,88,.22);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.entry__body{display:grid;grid-template-columns:290px minmax(0,1fr);gap:28px;align-items:start}
.entry--reverse .entry__body{grid-template-columns:minmax(0,1fr) 290px}
.entry--reverse .entry__thumb{order:2}
.entry__thumb{border-radius:var(--r-img);overflow:hidden;background:var(--c-brand-l);aspect-ratio:16/10}
.entry__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.entry:hover .entry__thumb img{transform:scale(1.03)}
.entry__text h3{font-size:clamp(19px,2.2vw,22px);line-height:1.45;font-weight:600;margin:12px 0 12px}
.entry__text h3 a{color:var(--c-ink)}
.entry__text h3 a:hover{color:var(--c-brand)}
.entry__text p{color:var(--c-ink-2);font-size:15.5px;line-height:1.85}
.entry__meta{display:flex;align-items:center;gap:10px;margin:16px 0 12px;font-size:13px;color:var(--c-meta)}
.entry__meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-meta);display:inline-block}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.scene-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.scene-card:hover{transform:translateY(-3px);border-color:var(--c-brand);box-shadow:var(--sh-2)}
.scene-card .scene-ico{width:44px;height:44px;border-radius:12px;background:var(--c-brand-l);color:var(--c-brand);display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px}
.scene-card h3{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px}
.scene-card p{font-size:15px;color:var(--c-ink-2);line-height:1.8}
.scene-card ul{margin-top:14px}
.scene-card li{position:relative;padding-left:18px;font-size:14.5px;color:var(--c-ink-2);line-height:1.9}
.scene-card li::before{content:"";position:absolute;left:0;top:.82em;width:6px;height:6px;border-radius:50%;background:var(--c-accent)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-item{border-bottom:1px solid var(--c-line);background:transparent;transition:background .18s ease}
.faq-item[open]{background:var(--c-bg);border-left:3px solid var(--c-brand);padding-left:16px}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 44px 18px 0;position:relative;
  font-size:17px;font-weight:600;line-height:1.65;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:12px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--c-brand);transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"+";transform:translateY(-50%) rotate(45deg)}
.faq-item .faq-answer{padding:0 12px 18px 0;font-size:16px;line-height:1.85;color:var(--c-ink-2)}

/* ---------- 相关推荐 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.rel-card:hover{transform:translateY(-3px);border-color:var(--c-brand);box-shadow:var(--sh-2)}
.rel-card__thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-brand-l)}
.rel-card__thumb img{width:100%;height:100%;object-fit:cover}
.rel-card__body{padding:20px}
.rel-card__body h3{font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.55;margin-bottom:8px}
.rel-card:hover .rel-card__body h3{color:var(--c-brand)}
.rel-card__body p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8}

/* ---------- CTA 条 ---------- */
.cta-bar{background:var(--c-deep);border-radius:18px;padding:32px 36px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;color:#fff}
.cta-bar h2{font-size:clamp(20px,2.6vw,26px);line-height:1.4;font-weight:700;color:#fff}
.cta-bar p{margin-top:8px;font-size:15px;color:#C6D9D3;max-width:44em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-deep);color:#C4D6D1;margin-top:var(--gap-section);padding-top:64px}
.footer-grid{gap:36px 24px}
.footer-brand{display:flex;flex-direction:column;line-height:1.1;margin-bottom:16px}
.footer-brand__main{font-size:20px;font-weight:700;color:#fff;letter-spacing:.02em}
.footer-brand__sub{font-size:12px;font-weight:500;letter-spacing:.22em;color:#8FB8AE}
.site-footer p{font-size:14px;line-height:1.85;color:#AFC5BF}
.site-footer h4{font-size:14px;font-weight:600;color:#fff;letter-spacing:.1em;margin-bottom:16px}
.footer-links li+li{margin-top:10px}
.footer-links a{font-size:14px;color:#B7CCC6}
.footer-links a:hover{color:#fff}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between}
.footer-bottom p{font-size:13px;color:#8FA9A2}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1279px){
  :root{--gap-section:84px}
}
@media screen and (max-width:1024px){
  :root{--gap-section:72px}
  .entry__body,.entry--reverse .entry__body{grid-template-columns:240px minmax(0,1fr)}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mega-panel{grid-template-columns:1fr 1fr}
  .mega-card{display:none}
}
@media screen and (max-width:768px){
  :root{--gap-section:56px}
  .container{padding:0 20px}
  .navbar__inner{min-height:64px;gap:14px}
  .mainnav__list>li>a,.mainnav__mega{padding:9px 11px;font-size:14px}
  .mainnav__list>li>a.is-active::after{left:11px;right:11px}
  .chipbar{top:64px}
  .page-hero{min-height:180px}
  .entry{grid-template-columns:1fr;gap:12px}
  .entry__index{font-size:40px}
  .entry__body,.entry--reverse .entry__body{grid-template-columns:1fr}
  .entry--reverse .entry__thumb{order:0}
  .cta-bar{padding:26px 22px}
  .mega-panel{grid-template-columns:1fr;width:calc(100vw - 32px);padding:20px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media screen and (max-width:640px){
  .scene-grid,.rel-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .nav-actions .btn--primary{display:none}
  .searchbar__form{flex-wrap:wrap}
  .searchbar__form input{flex:1 1 100%}
  .topbar__inner{justify-content:flex-start;gap:18px}
  .topbar__note{display:none}
  .cta-actions{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --c-bg:#F8F6F1;
  --c-surface:#FFFFFF;
  --c-ink:#121715;
  --c-ink-2:#46514D;
  --c-meta:#6B7A74;
  --c-line:#E4E1D8;
  --c-brand:#146B58;
  --c-brand-d:#0D4C3E;
  --c-brand-l:#E6F1ED;
  --c-accent:#D9722F;
  --c-accent-l:#FBEADF;
  --c-danger:#B4472F;
  --c-deep:#0E2C26;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,23,21,.06);
  --sh-2:0 14px 30px -18px rgba(18,23,21,.28);
  --sh-3:0 24px 48px -24px rgba(18,23,21,.34);
  --sp:88px;
  --sp-m:52px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-brand);text-decoration:none;transition:color .18s ease,border-color .18s ease}
a:hover{color:var(--c-brand-d)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--c-brand);
  outline-offset:2px;
  border-radius:4px;
}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1{font-size:clamp(30px,3.4vw,42px);line-height:1.25;font-weight:700}
h2{font-size:clamp(24px,2.5vw,32px);line-height:1.3;font-weight:700}
h3{font-size:clamp(19px,1.7vw,22px);line-height:1.4;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
::selection{background:var(--c-brand-l);color:var(--c-brand-d)}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section{padding:var(--sp) 0}
.section--tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.section-head p{color:var(--c-ink-2);font-size:15px;margin-top:10px;max-width:640px}
.section-head .link-more{white-space:nowrap;font-size:15px;font-weight:600}

/* 顶部信息条 */
.topbar{
  background:var(--c-deep);
  color:#CFE0DB;
  font-size:13px;
  line-height:36px;
  height:36px;
  overflow:hidden;
}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.topbar__note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__links{display:flex;align-items:center;gap:18px;white-space:nowrap;overflow-x:auto;scrollbar-width:none}
.topbar__links::-webkit-scrollbar{display:none}
.topbar__links a{color:#CFE0DB}
.topbar__links a:hover{color:#fff}

/* 主导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.header-inner{display:flex;align-items:center;gap:28px;min-height:74px}
.brand{display:flex;flex-direction:column;line-height:1.1;flex:0 0 auto}
.brand__main{font-size:20px;font-weight:700;color:var(--c-brand);letter-spacing:.02em}
.brand__sub{font-size:12px;font-weight:500;letter-spacing:.22em;color:var(--c-ink)}
.brand:hover .brand__main{color:var(--c-brand-d)}
.nav-primary{flex:1 1 auto}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-list > li{position:relative}
.nav-list > li > a,
.nav-list > li > .mega-toggle{
  display:inline-block;
  padding:26px 14px 24px;
  font-size:15px;
  font-weight:500;
  color:var(--c-ink);
  border-bottom:2px solid transparent;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.nav-list > li > a:hover,
.nav-list > li > .mega-toggle:hover{color:var(--c-brand);background:var(--c-brand-l)}
.nav-list > li > a.is-active{
  color:var(--c-brand);
  font-weight:600;
  border-bottom-color:var(--c-brand);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:44px;height:44px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-brand);
  background:var(--c-surface);
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.icon-btn:hover{background:var(--c-brand-l);border-color:var(--c-brand)}
.icon-btn svg{width:18px;height:18px}
.menu-toggle{display:none}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn--primary:hover{background:#C4641F;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn--ghost:hover{background:var(--c-brand-l);color:var(--c-brand-d)}
.btn--ghost-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn--ghost-light:hover{background:rgba(255,255,255,.14);color:#fff}
.btn--sm{height:40px;padding:0 16px;font-size:14px}
.link-more{color:var(--c-brand);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more::after{content:"→";transition:transform .18s ease}
.link-more:hover::after{transform:translateX(3px)}
.link-more:hover{text-decoration:underline}

/* Mega 面板 */
.has-mega{position:relative}
.mega-panel{
  position:absolute;top:calc(100% + 2px);left:-40px;
  width:min(920px,92vw);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-3);
  padding:26px;
  display:grid;
  grid-template-columns:1.05fr 1fr 1.1fr;
  gap:26px;
  opacity:0;visibility:hidden;
  transform:translateY(8px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel,
.has-mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h5{font-size:13px;letter-spacing:.14em;color:var(--c-meta);font-weight:600;margin-bottom:14px}
.mega-links li + li{margin-top:2px}
.mega-links a{
  display:block;
  padding:2px 10px;
  font-size:14.5px;
  color:var(--c-ink);
  border-radius:8px;
  transition:background .16s ease,transform .16s ease,color .16s ease;
}
.mega-links a:hover{background:var(--c-brand-l);color:var(--c-brand-d);transform:translateX(2px)}
.mega-news li{padding:10px 0;border-bottom:1px dashed var(--c-line)}
.mega-news li:last-child{border-bottom:0}
.mega-news a{color:var(--c-ink);font-size:14.5px;display:block}
.mega-news a:hover{color:var(--c-brand)}
.mega-news span{display:block;font-size:12.5px;color:var(--c-meta);margin-top:4px}
.mega-card{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  min-height:210px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:20px;
  color:#fff;
  background-image:linear-gradient(180deg,rgba(14,44,38,.32),rgba(14,44,38,.86)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
}
.mega-card p{font-size:14px;line-height:1.7;color:#E8F1EE;margin-bottom:14px}
.mega-card .btn{width:100%}

/* 搜索条 */
.search-bar{display:none;background:var(--c-surface);border-top:1px solid var(--c-line)}
.search-bar.is-open{display:block}
.search-form{display:flex;gap:12px;padding:16px 0}
.search-form input{
  flex:1 1 auto;height:44px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-bg);font-size:15px;color:var(--c-ink);
}
.search-form input:focus{
  border-color:var(--c-brand);
  box-shadow:0 0 0 2px rgba(20,107,88,.15);
  outline:none;background:#fff;
}

/* 分类标题带 */
.category-hero{
  position:relative;
  min-height:220px;
  display:flex;
  align-items:flex-end;
  padding:36px 0 40px;
  background-image:linear-gradient(180deg,rgba(14,44,38,.62),rgba(14,44,38,.72)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
}
.breadcrumb{font-size:13.5px;color:rgba(255,255,255,.82);margin-bottom:20px;display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb a{color:rgba(255,255,255,.92)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:#fff;font-weight:600;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.category-hero h1{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  color:#fff;
  max-width:820px;
  letter-spacing:.01em;
}
.category-hero .hero-sub{color:#DDEAE6;font-size:16px;margin-top:14px;max-width:660px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-tags span{
  display:inline-block;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;
  font-size:13px;
  letter-spacing:.04em;
}

/* 筛选条 */
.filter-bar{
  position:sticky;
  top:74px;
  z-index:40;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.filter-inner{display:flex;align-items:center;gap:10px;padding:14px 0;overflow-x:auto;scrollbar-width:none}
.filter-inner::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  height:38px;
  padding:0 16px;
  display:inline-flex;align-items:center;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  font-size:14px;font-weight:500;
  color:var(--c-ink-2);
  background:var(--c-surface);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-l)}
.chip.is-current{background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.filter-hint{flex:0 0 auto;margin-left:auto;font-size:13px;color:var(--c-meta)}

/* 模块卡片网格 */
.module-grid{margin-top:-14px}
.module-card{
  height:100%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:grid;
  grid-template-columns:168px 1fr;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.module-card:hover{transform:translateY(-3px);border-color:var(--c-brand);box-shadow:var(--sh-2)}
.module-card:hover .module-title a{color:var(--c-brand)}
.module-media{position:relative;background:var(--c-bg);overflow:hidden}
.module-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.badge{
  display:inline-block;
  padding:4px 11px;
  border-radius:var(--r-pill);
  background:var(--c-brand-l);
  color:var(--c-brand-d);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
}
.badge--accent{background:var(--c-accent-l);color:#A8520F}
.badge--float{
  position:absolute;top:12px;left:12px;
  background:rgba(255,255,255,.94);
  box-shadow:var(--sh-1);
}
.module-body{padding:20px 22px;display:flex;flex-direction:column;gap:10px}
.module-index{font-size:13px;font-weight:700;color:var(--c-accent);letter-spacing:.18em}
.module-title{font-size:18px;line-height:1.45;font-weight:600}
.module-title a{color:var(--c-ink)}
.module-desc{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.module-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-meta)}
.module-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-meta);display:inline-block}

/* 适用场景 */
.scene-card{
  height:100%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.scene-card:hover{transform:translateY(-3px);border-color:var(--c-brand);box-shadow:var(--sh-2)}
.scene-card .scene-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;
  border:1px solid var(--c-brand);
  border-radius:6px;
  color:var(--c-brand);
  font-size:14px;font-weight:700;
  margin-bottom:16px;
}
.scene-card h3{margin-bottom:10px}
.scene-card p{font-size:15px;color:var(--c-ink-2)}
.scene-list{margin-top:16px}
.scene-list li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--c-ink-2);
  line-height:1.8;
}
.scene-list li + li{margin-top:8px}
.scene-list li::before{
  content:"";
  position:absolute;left:0;top:.78em;
  width:6px;height:6px;border-radius:50%;
  background:var(--c-accent);
}

/* 流程 */
.flow-section{
  background-image:linear-gradient(180deg,rgba(14,44,38,.94),rgba(14,44,38,.96)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#fff;
}
.flow-section h2{color:#fff}
.flow-section .section-head p{color:#C9DCD7}
.flow-grid{margin-top:-12px}
.flow-step{
  height:100%;
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-card);
  padding:24px;
  background:rgba(255,255,255,.05);
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.flow-step:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.4);transform:translateY(-3px)}
.flow-step .step-num{font-size:26px;font-weight:700;color:#F0B183;letter-spacing:.06em;font-family:system-ui,sans-serif}
.flow-step h3{color:#fff;margin:12px 0 10px}
.flow-step p{color:#C9DCD7;font-size:14.5px}

/* FAQ */
.faq-list{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px 22px 0;
  font-size:17px;font-weight:600;
  color:var(--c-ink);
  transition:color .18s ease,background .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  width:26px;height:26px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);
  border-radius:6px;
  color:var(--c-brand);
  font-size:17px;font-weight:600;
  transition:transform .2s ease,background .2s ease;
}
.faq-item[open] summary{color:var(--c-brand);border-left:3px solid var(--c-brand);padding-left:16px;background:var(--c-bg)}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);background:var(--c-brand-l)}
.faq-answer{padding:16px 20px 22px;font-size:16px;color:var(--c-ink-2);line-height:1.85;background:var(--c-bg)}

/* 相关专题 */
.related-card{
  display:grid;
  grid-template-columns:120px 1fr;
  gap:18px;
  align-items:center;
  height:100%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:18px;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.related-card:hover{transform:translateY(-3px);border-color:var(--c-brand);box-shadow:var(--sh-2)}
.related-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img)}
.related-card h3{font-size:16.5px;margin-bottom:6px}
.related-card h3 a{color:var(--c-ink)}
.related-card h3 a:hover{color:var(--c-brand)}
.related-card p{font-size:14px;color:var(--c-ink-2)}

/* CTA 条 */
.cta-bar{
  background:var(--c-brand-l);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px 30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.cta-bar h3{margin-bottom:6px}
.cta-bar p{font-size:14.5px;color:var(--c-ink-2)}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
.cta-actions .btn{border-color:var(--c-brand);color:var(--c-brand);background:transparent}
.cta-actions .btn:hover{background:#fff;color:var(--c-brand-d)}
.cta-actions .btn svg{width:16px;height:16px}

/* 页脚 */
.site-footer{background:var(--c-deep);color:#C9DCD7;padding:64px 0 0;margin-top:20px}
.footer-grid{margin-bottom:40px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.04em}
.site-footer p{font-size:14px;line-height:1.85;color:#B6CCC6}
.footer-brand{display:flex;flex-direction:column;line-height:1.15;margin-bottom:14px}
.footer-brand__main{font-size:20px;font-weight:700;color:#fff}
.footer-brand__sub{font-size:12px;letter-spacing:.22em;color:#8FB3AA}
.footer-links li + li{margin-top:8px}
.footer-links a{color:#B6CCC6;font-size:14px}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 28px;
  align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:#8FB3AA;margin:0}

/* 响应式 */
@media screen and (max-width:1024px){
  :root{--sp:64px}
  .header-inner{gap:16px;min-height:66px}
  .menu-toggle{display:inline-flex}
  .nav-primary{
    display:none;
    position:absolute;
    left:0;right:0;top:100%;
    background:var(--c-surface);
    border-bottom:1px solid var(--c-line);
    box-shadow:var(--sh-2);
    padding:10px 24px 20px;
    max-height:calc(100vh - 102px);
    overflow-y:auto;
  }
  .nav-primary.is-open{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-list > li > a,
  .nav-list > li > .mega-toggle{
    width:100%;
    text-align:left;
    padding:14px 0;
    border-bottom:1px solid var(--c-line);
    border-left:2px solid transparent;
  }
  .nav-list > li > a.is-active{border-bottom-color:var(--c-line);border-left-color:var(--c-brand);padding-left:12px}
  .mega-panel{
    position:static;
    width:100%;
    left:auto;
    margin:12px 0 4px;
    grid-template-columns:1fr;
    box-shadow:none;
    padding:18px;
    display:none;
    opacity:1;visibility:visible;transform:none;
  }
  .has-mega.is-open .mega-panel{display:grid}
  .has-mega:hover .mega-panel{display:none}
  .has-mega.is-open:hover .mega-panel{display:grid}
  .filter-bar{top:66px}
  .module-card{grid-template-columns:140px 1fr}
}
@media screen and (max-width:640px){
  :root{--sp:52px}
  body{font-size:16px}
  .container{padding:0 20px}
  .topbar__links{gap:14px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .header-actions .btn--primary{display:none}
  .category-hero{min-height:200px;padding:26px 0 32px}
  .breadcrumb .current{max-width:46%}
  .filter-hint{display:none}
  .module-card{grid-template-columns:1fr}
  .module-media img{aspect-ratio:16/9}
  .module-body{padding:18px}
  .cta-bar{padding:24px 20px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .related-card{grid-template-columns:1fr}
  .related-card img{aspect-ratio:16/9}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .search-form{flex-direction:column}
  .search-form .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}