/* roulang page: index */
:root{
  --c-primary:#1668A8;
  --c-primary-deep:#0E4C7E;
  --c-secondary:#38A3B0;
  --c-accent:#F0703A;
  --c-accent-hover:#D95E2A;
  --c-ink:#0F1A24;
  --c-ink-2:#4A5A68;
  --c-ink-3:#8496A6;
  --c-bg:#F5F8FB;
  --c-surface:#FFFFFF;
  --c-band:#EDF3F8;
  --c-line:#DCE7EF;
  --c-success:#2E9E6B;
  --c-warn:#D98A1F;
  --c-error:#C7483F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(15,26,36,.04),0 1px 3px rgba(15,26,36,.06);
  --sh2:0 6px 18px -6px rgba(22,104,168,.16),0 2px 6px rgba(15,26,36,.05);
  --sh3:0 18px 40px -16px rgba(22,104,168,.24);
  --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 SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  text-align:left;
  padding-top:104px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border:0}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#EDF3F8}
::-webkit-scrollbar-thumb{background:#C3D6E5;border-radius:999px;border:2px solid #EDF3F8}
::-webkit-scrollbar-thumb:hover{background:#A7C2D8}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- Dock 导航 ---------- */
.site-header{position:fixed;top:14px;left:0;right:0;z-index:80;transition:top .3s var(--ease)}
.dock{
  position:relative;
  display:flex;
  align-items:center;
  gap:26px;
  height:64px;
  padding:0 12px 0 20px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh2);
  transition:height .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled .dock{height:60px;box-shadow:var(--sh3)}
.site-header.is-scrolled .dock::after{
  content:"";
  position:absolute;left:24px;right:24px;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(22,104,168,0),rgba(22,104,168,.18),rgba(22,104,168,0));
}
.brand{display:flex;align-items:center;gap:8px;flex-shrink:0;min-width:0}
.brand-mg{
  font-family:Inter,Archivo,system-ui,sans-serif;
  font-size:19px;font-weight:700;letter-spacing:.08em;
  color:var(--c-primary);line-height:1;
}
.brand-cn{font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--c-ink);line-height:1;white-space:nowrap}
.brand-sub{
  font-size:11px;line-height:1;color:var(--c-primary);
  border:1px solid rgba(22,104,168,.35);
  border-radius:var(--r-pill);
  padding:4px 7px;letter-spacing:.06em;white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);
  padding:6px 0;white-space:nowrap;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:center;transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--c-primary-deep)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-primary)}
.nav-link.active::after{transform:scaleX(1)}
.dock-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-ink-2);border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{background:rgba(22,104,168,.08);color:var(--c-primary);border-color:rgba(22,104,168,.2)}
.search-bar{
  display:none;align-items:center;gap:8px;
  height:44px;padding:0 6px 0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);
  background:#FBFDFE;max-width:250px;
}
.search-bar.open{display:flex}
.search-bar input{
  width:130px;border:0;background:transparent;height:40px;font-size:14px;color:var(--c-ink);
}
.search-bar input::placeholder{color:var(--c-ink-3)}
.search-bar input:focus{outline:none}
.search-bar .search-go{
  width:34px;height:34px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;font-size:13px;
}
.hamburger{display:none;width:44px;height:44px;border-radius:var(--r-pill);align-items:center;justify-content:center;color:var(--c-ink);font-size:18px}
.hamburger:hover{background:rgba(22,104,168,.08)}

.mobile-panel{
  display:none;
  position:absolute;left:0;right:0;top:calc(100% + 10px);
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:16px;box-shadow:var(--sh3);padding:12px;
}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  border-radius:10px;font-size:15px;font-weight:500;color:var(--c-ink-2);
  margin-bottom:12px;
}
.mobile-panel a:last-child{margin-bottom:0}
.mobile-panel a:hover{background:rgba(22,104,168,.07);color:var(--c-primary)}
.mobile-panel a.active{background:rgba(22,104,168,.1);color:var(--c-primary)}

/* ---------- 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;line-height:1;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh1)}
.btn-primary:hover{background:var(--c-accent-hover);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18)}
.btn-outline{background:var(--c-surface);color:var(--c-primary);border:1px solid var(--c-primary)}
.btn-outline:hover{background:rgba(22,104,168,.08)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 96px}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,#FFFFFF 0%,#F5F8FB 62%,#F5F8FB 100%);
  z-index:-2;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;font-weight:600;
  color:var(--c-primary-deep);background:rgba(56,163,176,.12);
  border:1px solid rgba(56,163,176,.28);
  border-radius:var(--r-pill);padding:6px 14px;
}
.hero h1{
  margin-top:22px;
  font-size:clamp(28px,4.4vw,44px);
  line-height:1.28;font-weight:700;letter-spacing:-.01em;
  color:var(--c-ink);
}
.hero h1 .hl{color:var(--c-primary)}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--c-ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-trust{display:flex;flex-wrap:wrap;gap:40px;margin-top:44px;padding-top:26px;border-top:1px solid var(--c-line)}
.hero-trust .trust-item{min-width:110px}
.hero-trust .num{
  display:block;font-family:Inter,Archivo,system-ui,sans-serif;
  font-size:27px;font-weight:600;line-height:1.1;color:var(--c-primary-deep);
}
.hero-trust .lbl{display:block;margin-top:6px;font-size:14px;line-height:1.7;color:var(--c-ink-3)}
.hero-visual{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh3);background:var(--c-band)}
.hero-visual img{width:100%;height:100%;min-height:340px;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(245,248,251,.62),rgba(245,248,251,.18));
  pointer-events:none;
}
.rink-deco{position:absolute;opacity:.12;pointer-events:none;z-index:-1}
.rink-deco.tl{left:-60px;top:-40px;width:320px;height:320px}
.rink-deco.br{right:-70px;bottom:20px;width:300px;height:300px}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-band{background:var(--c-band)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-label{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--c-secondary);background:rgba(56,163,176,.12);
  border-radius:var(--r-pill);padding:5px 12px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(22px,3vw,32px);line-height:1.35;font-weight:700;color:var(--c-ink)}
.section-head p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--c-ink-2)}

/* ---------- 品牌故事 ---------- */
.story-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:64px;align-items:center}
.story-copy p{margin-bottom:18px;font-size:16px;line-height:1.9;color:var(--c-ink-2)}
.story-copy p:last-of-type{margin-bottom:0}
.keyword-rail{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.keyword-rail span{
  font-size:12px;letter-spacing:.06em;font-weight:600;
  color:var(--c-primary-deep);background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-pill);
  padding:7px 14px;box-shadow:var(--sh1);
}
.story-media{position:relative}
.story-media .frame{
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh2);
  border:1px solid var(--c-line);background:var(--c-band);
}
.story-media .frame img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s var(--ease)}
.story-media .frame:hover img{transform:scale(1.03)}
.story-media .tag-float{
  position:absolute;left:-16px;bottom:-18px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh2);
  padding:14px 18px;min-width:172px;
}
.story-media .tag-float .n{font-family:Inter,Archivo,system-ui,sans-serif;font-size:22px;font-weight:600;color:var(--c-primary)}
.story-media .tag-float .t{display:block;margin-top:4px;font-size:13px;color:var(--c-ink-3)}

/* ---------- 精选内容卡 ---------- */
.feature-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:24px}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh1);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28)}
.card-media{overflow:hidden;background:var(--c-band)}
.card-media img{width:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:24px}
.card-title{font-size:19px;line-height:1.5;font-weight:600;color:var(--c-ink);transition:color .2s var(--ease)}
.card:hover .card-title{color:var(--c-primary)}
.card-desc{margin-top:12px;font-size:14px;line-height:1.8;color:var(--c-ink-2)}
.badge{
  display:inline-block;font-size:12px;line-height:1.5;letter-spacing:.06em;font-weight:600;
  color:var(--c-primary-deep);background:rgba(22,104,168,.1);
  border-radius:var(--r-pill);padding:3px 10px;
}
.badge.teal{color:#1F6F79;background:rgba(56,163,176,.14)}
.card-lg .card-media img{aspect-ratio:16/9}
.card-lg .card-title{font-size:22px}
.card-lg .card-body{padding:28px}
.card-stack{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.card-sm{display:grid;grid-template-columns:132px minmax(0,1fr);align-items:stretch}
.card-sm .card-media{height:100%}
.card-sm .card-media img{height:100%;width:100%;object-fit:cover}
.card-sm .card-body{padding:18px 20px;display:flex;flex-direction:column;justify-content:center}
.card-sm .card-title{font-size:16px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta{margin-top:12px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-ink-3)}

/* ---------- 数据指标 ---------- */
.stats-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.stat{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh1);
}
.stat .n{font-family:Inter,Archivo,system-ui,sans-serif;font-size:34px;font-weight:600;line-height:1.1;color:var(--c-primary-deep)}
.stat .n small{font-size:16px;font-weight:600;color:var(--c-secondary);margin-left:2px}
.stat .t{margin-top:10px;font-size:14px;line-height:1.7;color:var(--c-ink-3)}
.logo-wall{
  margin-top:32px;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px;
}
.logo-item{
  height:72px;display:flex;align-items:center;justify-content:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  font-size:14px;font-weight:600;letter-spacing:.04em;color:#7F8C99;
  filter:grayscale(1);transition:filter .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.logo-item:hover{filter:grayscale(0);color:var(--c-primary);border-color:rgba(22,104,168,.28)}

/* ---------- 三步流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.step{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:30px 26px;box-shadow:var(--sh1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease)
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh3)}
.step .idx{
  font-family:Inter,Archivo,system-ui,sans-serif;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-secondary);
}
.step h3{margin-top:14px;font-size:20px;font-weight:600;line-height:1.5}
.step p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}
.step .line{
  position:absolute;left:26px;top:0;width:4px;height:0;border-radius:0 0 4px 4px;
  background:var(--c-primary);transition:height .25s var(--ease);
}
.step:hover .line{height:34px}

/* ---------- 最新信息 ---------- */
.content-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;align-items:start}
.post-list{display:flex;flex-direction:column;gap:12px}
.post-item{
  display:grid;grid-template-columns:168px minmax(0,1fr);
  gap:18px;padding:14px;border-radius:var(--r-card);
  background:var(--c-surface);border:1px solid var(--c-line);box-shadow:var(--sh1);
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.post-item:hover{background:rgba(22,104,168,.05);border-color:rgba(22,104,168,.28);transform:translateY(-2px);box-shadow:var(--sh2)}
.post-thumb{overflow:hidden;border-radius:var(--r-img);background:var(--c-band)}
.post-thumb img{width:100%;height:100%;min-height:96px;object-fit:cover;transition:transform .35s var(--ease)}
.post-item:hover .post-thumb img{transform:scale(1.04)}
.post-body{display:flex;flex-direction:column;justify-content:center;min-width:0}
.post-body h3{
  font-size:18px;font-weight:600;line-height:1.55;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.post-item:hover .post-body h3{color:var(--c-primary)}
.post-body .excerpt{
  margin-top:8px;font-size:14px;line-height:1.75;color:var(--c-ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body .post-meta{margin-top:12px;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-ink-3)}
.post-body .post-meta .arrow{margin-left:auto;color:var(--c-primary);font-size:13px}
.empty-box{
  height:180px;border:1px dashed rgba(22,104,168,.35);border-radius:var(--r-card);
  background:rgba(237,243,248,.9);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;
}
.empty-box i{font-size:22px;color:var(--c-primary);opacity:.7}
.empty-box p{font-size:14px;color:var(--c-ink-2)}
.empty-box a{font-size:14px;font-weight:600;color:var(--c-primary);border-bottom:1px solid rgba(22,104,168,.35);padding-bottom:2px}

.content-side{display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh1);
}
.side-card h3{font-size:16px;font-weight:600;color:var(--c-ink);padding-bottom:12px;border-bottom:1px solid var(--c-line)}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;font-size:14px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.side-nav a:last-child{border-bottom:0}
.side-nav a:hover{color:var(--c-primary);padding-left:4px}
.side-nav a i{font-size:12px;color:var(--c-ink-3)}
.hot-list li{border-bottom:1px solid var(--c-line)}
.hot-list li:last-child{border-bottom:0}
.hot-list a{
  display:block;padding:12px 0;font-size:14px;line-height:1.7;color:var(--c-ink-2);
  transition:color .2s var(--ease);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.hot-list a:hover{color:var(--c-primary)}
.side-card .hint{font-size:13px;line-height:1.75;color:var(--c-ink-3);margin-top:10px}
.side-sub{display:flex;gap:8px;margin-top:14px}
.side-sub input{
  flex:1;min-width:0;height:44px;padding:0 12px;border:1px solid var(--c-line);
  border-radius:var(--r-btn);background:#FBFDFE;font-size:14px;
}
.side-sub input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,104,168,.2)}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:rgba(22,104,168,.28)}
.faq-item.open{box-shadow:var(--sh2)}
.faq-item.open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:64px;padding:16px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-ink);
}
.faq-q .plus{
  flex-shrink:0;width:26px;height:26px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);color:var(--c-primary);font-size:13px;
  transition:transform .22s var(--ease),background .22s var(--ease);
}
.faq-item.open .faq-q .plus{transform:rotate(45deg);background:rgba(22,104,168,.1)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(22,104,168,.06),rgba(56,163,176,.06));
  border:1px solid var(--c-line);border-radius:20px;
  padding:52px;display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);
  gap:48px;align-items:center;
}
.cta-band h2{font-size:clamp(20px,2.6vw,26px);line-height:1.4;font-weight:700}
.cta-band p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--c-ink-2);max-width:460px}
.subscribe-form{display:flex;flex-direction:column;gap:12px}
.subscribe-form .row{display:flex;gap:12px}
.subscribe-form input{
  flex:1;min-width:0;height:48px;padding:0 16px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.subscribe-form input::placeholder{color:var(--c-ink-3)}
.subscribe-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,104,168,.2)}
.subscribe-form .privacy{font-size:12px;line-height:1.7;color:var(--c-ink-3)}
.form-msg{font-size:13px;color:var(--c-success);display:none}
.form-msg.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#C7D3DE;margin-top:96px}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:48px;
  padding:72px 0 44px;
}
.footer-brand .brand-mg{color:#7FB4DC}
.footer-brand .brand-cn{color:#fff}
.footer-brand .brand-sub{color:#7FB4DC;border-color:rgba(127,180,220,.4)}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:#93A5B5;max-width:300px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.14);color:#C7D3DE;font-size:14px;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.footer-social a:hover{background:rgba(127,180,220,.16);color:#fff;border-color:rgba(127,180,220,.5)}
.footer-col h4{font-size:14px;font-weight:600;color:#7FB4DC;margin:0 0 18px;letter-spacing:.02em}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:14px;color:#C7D3DE;display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-col .muted{font-size:14px;line-height:1.85;color:#93A5B5}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:#7E8E9C;
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1100px}
}
@media (max-width:1023px){
  body{padding-top:96px}
  .nav-links{gap:20px}
  .nav-link{font-size:14px}
  .hero{padding:40px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual img{min-height:280px}
  .story-grid{grid-template-columns:1fr;gap:40px}
  .story-media .tag-float{left:auto;right:16px;bottom:-16px}
  .feature-grid{grid-template-columns:1fr}
  .card-stack{grid-template-rows:auto}
  .content-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;padding:56px 0 32px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  .nav-links{display:none}
  .search-bar{display:none !important}
  .hamburger{display:inline-flex}
  .stats-row{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:repeat(3,minmax(0,1fr))}
  .post-item{grid-template-columns:120px minmax(0,1fr);gap:14px;padding:12px}
  .post-body h3{font-size:16px}
  .post-body .excerpt{-webkit-line-clamp:2}
  .card-sm{grid-template-columns:110px minmax(0,1fr)}
  .hero-trust{gap:28px}
  .brand-sub{display:none}
}
@media (max-width:639px){
  body{font-size:16px;padding-top:88px}
  .section{padding:56px 0}
  .dock{height:60px;padding:0 10px 0 16px;gap:12px}
  .site-header.is-scrolled .dock{height:56px}
  .brand-cn{font-size:15px}
  .hero h1{font-size:27px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1;min-width:132px}
  .stats-row{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:1fr 1fr}
  .post-item{grid-template-columns:1fr}
  .post-thumb{height:150px}
  .post-thumb img{min-height:150px}
  .subscribe-form .row{flex-direction:column}
  .subscribe-form .btn{width:100%}
  .cta-band{padding:28px 22px;border-radius:16px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .story-media .tag-float{position:static;margin-top:16px;min-width:0}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .card:hover,.post-item:hover,.step:hover{transform:none}
}

/* roulang page: category1 */
:root{
    --c-primary:#1668A8;
    --c-primary-deep:#0E4C7E;
    --c-secondary:#38A3B0;
    --c-accent:#F0703A;
    --c-accent-deep:#D95E2A;
    --c-ink:#0F1A24;
    --c-ink-2:#4A5A68;
    --c-ink-3:#8496A6;
    --c-bg:#F5F8FB;
    --c-surface:#FFFFFF;
    --c-band:#EDF3F8;
    --c-line:#DCE7EF;
    --c-ok:#2E9E6B;
    --c-warn:#D98A1F;
    --c-err:#C7483F;
    --r-card:14px;
    --r-img:12px;
    --r-btn:10px;
    --r-pill:999px;
    --sh1:0 1px 2px rgba(15,26,36,.04),0 1px 3px rgba(15,26,36,.06);
    --sh2:0 6px 18px -6px rgba(22,104,168,.16),0 2px 6px rgba(15,26,36,.05);
    --sh3:0 18px 40px -16px rgba(22,104,168,.24);
    --ease:cubic-bezier(.2,.7,.3,1);
    --dock-h:64px;
  }

  *,*::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:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    text-align:left;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;height:auto;}
  a{color:inherit;text-decoration:none;}
  a.inline-link{color:var(--c-primary);text-underline-offset:3px;text-decoration:underline;}
  a.inline-link:hover{color:var(--c-primary-deep);}
  button{font-family:inherit;cursor:pointer;border:0;background:none;}
  input{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  :focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,104,168,.28);border-radius:6px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  .num{font-family:Inter,"Archivo",system-ui,sans-serif;font-variant-numeric:tabular-nums;}

  /* ============ 浮动 Dock 导航 ============ */
  .site-header{position:fixed;top:0;left:0;right:0;z-index:80;padding:16px 16px 0;}
  .dock{
    max-width:1120px;margin:0 auto;height:var(--dock-h);
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-pill);
    box-shadow:var(--sh2);display:flex;align-items:center;gap:20px;
    padding:0 16px 0 20px;
    transition:height .3s var(--ease),box-shadow .3s var(--ease);
  }
  .dock.is-shrink{height:60px;box-shadow:var(--sh3);}
  .dock::after{content:"";position:absolute;left:50%;transform:translateX(-50%);width:min(1120px,100% - 32px);height:1px;background:linear-gradient(90deg,rgba(22,104,168,0),rgba(22,104,168,.35),rgba(22,104,168,0));top:calc(16px + 60px);opacity:0;transition:opacity .3s var(--ease);}
  .dock.is-shrink::after{opacity:1;}

  .brand{display:flex;align-items:center;gap:8px;flex-shrink:0;line-height:1;}
  .brand-mg{
    font-family:Inter,"Archivo",system-ui,sans-serif;font-weight:700;font-size:18px;
    letter-spacing:.08em;color:#fff;background:var(--c-primary);
    padding:5px 8px;border-radius:8px;
  }
  .brand-cn{font-size:16px;font-weight:700;color:var(--c-ink);letter-spacing:.01em;}
  .brand-sub{
    font-size:11px;color:var(--c-primary);border:1px solid rgba(22,104,168,.35);
    border-radius:var(--r-pill);padding:1px 7px;letter-spacing:.06em;
  }

  .dock-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
  .dock-nav a{
    position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);
    padding:6px 0;transition:color .2s var(--ease);
  }
  .dock-nav a::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
    background:var(--c-primary);transform:scaleX(0);transform-origin:left;
    transition:transform .2s var(--ease);
  }
  .dock-nav a:hover{color:var(--c-primary);}
  .dock-nav a:hover::after{transform:scaleX(1);}
  .dock-nav a.active{color:var(--c-primary);}
  .dock-nav a.active::after{transform:scaleX(1);}

  .dock-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .icon-btn{
    width:40px;height:40px;border-radius:var(--r-pill);display:inline-flex;
    align-items:center;justify-content:center;color:var(--c-ink-2);
    border:1px solid transparent;transition:all .2s var(--ease);
  }
  .icon-btn:hover{color:var(--c-primary);border-color:var(--c-line);background:var(--c-band);}

  .search-wrap{display:flex;align-items:center;gap:6px;max-width:0;overflow:hidden;opacity:0;transition:all .3s var(--ease);}
  .search-wrap.open{max-width:280px;opacity:1;}
  .search-wrap input{
    height:38px;width:170px;border:1px solid var(--c-line);border-radius:var(--r-pill);
    padding:0 14px;font-size:14px;color:var(--c-ink);background:#fff;
  }
  .search-wrap input::placeholder{color:var(--c-ink-3);}
  .search-wrap input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,104,168,.16);outline:none;}
  .search-wrap button{
    height:38px;padding:0 16px;border-radius:var(--r-pill);
    background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
    transition:background .2s var(--ease);
  }
  .search-wrap button:hover{background:var(--c-primary-deep);}

  .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;line-height:1;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  }
  .btn-accent{background:var(--c-accent);color:#fff;box-shadow:var(--sh1);}
  .btn-accent:hover{background:var(--c-accent-deep);transform:translateY(-1px);box-shadow:var(--sh2);}
  .btn-accent:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(15,26,36,.18);}
  .btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary);}
  .btn-ghost:hover{background:rgba(22,104,168,.08);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-sm{height:40px;padding:0 18px;font-size:14px;}
  .btn-pill{border-radius:var(--r-pill);}

  .nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-pill);align-items:center;justify-content:center;color:var(--c-ink);border:1px solid var(--c-line);}
  .nav-toggle:hover{background:var(--c-band);color:var(--c-primary);}

  .mobile-panel{
    max-width:1120px;margin:12px auto 0;background:#fff;border:1px solid var(--c-line);
    border-radius:20px;box-shadow:var(--sh3);padding:14px 16px 18px;display:none;
  }
  .mobile-panel.open{display:block;}
  .mobile-panel nav{display:flex;flex-direction:column;gap:12px;}
  .mobile-panel nav a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:48px;padding:0 16px;border-radius:12px;font-size:15px;font-weight:500;
    color:var(--c-ink-2);background:var(--c-bg);transition:all .2s var(--ease);
  }
  .mobile-panel nav a:hover,.mobile-panel nav a.active{background:var(--c-band);color:var(--c-primary);}
  .mobile-panel .m-cta{margin-top:14px;width:100%;}

  /* ============ 面包屑 ============ */
  .breadcrumb{font-size:13px;color:var(--c-ink-3);display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
  .breadcrumb a{color:var(--c-ink-3);transition:color .2s var(--ease);}
  .breadcrumb a:hover{color:var(--c-primary);}
  .breadcrumb .sep{color:#B7C5D2;}

  /* ============ 紧凑 Hero ============ */
  .cat-hero{
    position:relative;overflow:hidden;background:var(--c-band);
    padding:132px 0 48px;border-bottom:1px solid var(--c-line);
  }
  .cat-hero .hero-grid{
    display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:center;
    min-height:220px;
  }
  .cat-hero h1{
    font-size:clamp(28px,4.4vw,44px);line-height:1.28;font-weight:700;letter-spacing:-.01em;
    margin:14px 0 12px;
  }
  .cat-hero .hero-sub{font-size:16px;line-height:1.7;color:var(--c-ink-2);max-width:620px;}
  .hero-thumb{
    position:relative;border-radius:var(--r-card);overflow:hidden;
    box-shadow:var(--sh2);border:1px solid rgba(255,255,255,.7);
  }
  .hero-thumb img{width:100%;height:180px;object-fit:cover;transition:transform .35s var(--ease);}
  .hero-thumb:hover img{transform:scale(1.03);}
  .rink-decor{position:absolute;right:-40px;bottom:-70px;width:420px;height:300px;opacity:.12;pointer-events:none;}

  .badge{
    display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
    letter-spacing:.06em;line-height:1.5;padding:4px 12px;border-radius:var(--r-pill);
  }
  .badge-primary{background:rgba(22,104,168,.1);color:var(--c-primary);}
  .badge-soft{background:rgba(56,163,176,.14);color:#1F7C88;}

  /* ============ 通用板块 ============ */
  .section{padding:72px 0;}
  .section-band{background:var(--c-band);}
  .section-head{max-width:720px;margin-bottom:32px;}
  .eyebrow{
    font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--c-secondary);
    text-transform:uppercase;margin-bottom:10px;display:block;
  }
  .section h2{font-size:clamp(22px,3vw,32px);line-height:1.35;font-weight:700;}
  .section h3{font-size:20px;line-height:1.5;font-weight:600;}
  .section h4{font-size:17px;line-height:1.55;font-weight:600;}
  .lead{font-size:16px;line-height:1.9;color:var(--c-ink-2);}
  .lede-note{margin-top:20px;font-size:15px;line-height:1.9;color:var(--c-ink-2);}
  .lede-note strong{color:var(--c-primary-deep);font-weight:600;}

  /* ============ 主体内容：大卡 + 小卡堆叠 ============ */
  .feature-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:24px;align-items:stretch;}
  .big-card{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    box-shadow:var(--sh1);overflow:hidden;display:flex;flex-direction:column;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .big-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28);}
  .big-card .thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--c-band);}
  .big-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
  .big-card:hover .thumb img{transform:scale(1.03);}
  .big-card .body{padding:24px 26px 26px;}
  .big-card .body h3{margin:12px 0 10px;font-size:22px;}
  .big-card .body p{font-size:15px;line-height:1.85;color:var(--c-ink-2);}
  .meta-row{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-ink-3);margin-top:18px;flex-wrap:wrap;}
  .meta-row .dot{width:3px;height:3px;border-radius:50%;background:#C6D3DE;}

  .small-stack{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
  .small-card{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh1);
    padding:16px;display:grid;grid-template-columns:132px minmax(0,1fr);gap:16px;align-items:center;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .small-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28);}
  .small-card .mini{width:100%;aspect-ratio:4/3;border-radius:var(--r-img);overflow:hidden;background:var(--c-band);}
  .small-card .mini img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
  .small-card:hover .mini img{transform:scale(1.03);}
  .small-card h4{font-size:17px;line-height:1.5;}
  .small-card p{font-size:14px;line-height:1.75;color:var(--c-ink-2);margin-top:6px;}
  .small-card .time{font-size:12px;color:var(--c-ink-3);margin-top:8px;display:block;letter-spacing:.04em;}

  /* ============ 规则要点 ============ */
  .point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .point-card{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:24px 24px 22px;box-shadow:var(--sh1);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .point-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28);}
  .point-card .ico{
    width:42px;height:42px;border-radius:12px;background:rgba(22,104,168,.1);
    color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:17px;
  }
  .point-card h3{margin:16px 0 8px;font-size:18px;}
  .point-card p{font-size:15px;line-height:1.85;color:var(--c-ink-2);}
  .point-card .tagline{
    margin-top:14px;font-size:12px;letter-spacing:.06em;color:var(--c-secondary);font-weight:600;
  }

  /* ============ 数据条 ============ */
  .stat-band{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
  .stat{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:22px 20px;box-shadow:var(--sh1);
  }
  .stat .n{font-family:Inter,"Archivo",system-ui,sans-serif;font-size:34px;font-weight:600;color:var(--c-primary-deep);line-height:1.1;}
  .stat .n small{font-size:16px;margin-left:2px;color:var(--c-secondary);}
  .stat .l{font-size:14px;color:var(--c-ink-3);margin-top:8px;line-height:1.7;}

  /* ============ FAQ ============ */
  .faq-list{display:flex;flex-direction:column;gap:12px;}
  .faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden;position:relative;}
  .faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);transform:scaleY(0);transition:transform .22s var(--ease);}
  .faq-item.open::before{transform:scaleY(1);}
  .faq-q{
    width:100%;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);
    transition:color .2s var(--ease);
  }
  .faq-q:hover{color:var(--c-primary);}
  .faq-q .plus{
    flex-shrink:0;width:26px;height:26px;border-radius:50%;border:1px solid var(--c-line);
    color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;
    font-size:13px;transition:transform .22s var(--ease),background .22s var(--ease);
  }
  .faq-item.open .plus{transform:rotate(45deg);background:rgba(22,104,168,.1);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
  .faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-ink-2);}

  /* ============ 相关分类 ============ */
  .rel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
  .rel-card{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:20px;box-shadow:var(--sh1);display:flex;flex-direction:column;gap:8px;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28);}
  .rel-card i{color:var(--c-secondary);font-size:16px;}
  .rel-card strong{font-size:16px;font-weight:600;}
  .rel-card span{font-size:13px;line-height:1.7;color:var(--c-ink-3);}
  .rel-card.current{border-color:rgba(22,104,168,.35);background:rgba(22,104,168,.04);}

  /* ============ CTA ============ */
  .cta-block{
    position:relative;overflow:hidden;border-radius:20px;background:var(--c-band);
    padding:44px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:32px;align-items:center;
  }
  .cta-block .cta-bg{
    position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');
    background-size:cover;background-position:center;opacity:.16;pointer-events:none;
  }
  .cta-block>*{position:relative;z-index:1;}
  .cta-block h2{font-size:clamp(20px,2.4vw,26px);line-height:1.4;font-weight:700;margin-bottom:10px;}
  .cta-block p{font-size:15px;line-height:1.85;color:var(--c-ink-2);}
  .cta-form{display:flex;gap:10px;}
  .cta-form input{
    flex:1;height:48px;border:1px solid var(--c-line);border-radius:var(--r-btn);
    padding:0 16px;font-size:15px;background:#fff;color:var(--c-ink);
  }
  .cta-form input::placeholder{color:var(--c-ink-3);}
  .cta-form input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,104,168,.2);outline:none;}
  .cta-form .btn{height:48px;}
  .privacy{font-size:12px;color:var(--c-ink-3);margin-top:10px;line-height:1.7;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--c-ink);color:#C7D3DE;padding:64px 0 26px;margin-top:8px;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
  .site-footer .brand-cn{color:#fff;}
  .site-footer .brand-sub{color:#7FB4DC;border-color:rgba(127,180,220,.4);}
  .site-footer .brand-mg{background:var(--c-primary);}
  .footer-brand p{font-size:14px;line-height:1.85;color:#9FB0BF;margin-top:16px;max-width:320px;}
  .footer-social{display:flex;gap:10px;margin-top:18px;}
  .footer-social a{
    width:38px;height:38px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
    background:rgba(255,255,255,.06);color:#C7D3DE;transition:all .2s var(--ease);
  }
  .footer-social a:hover{background:var(--c-primary);color:#fff;}
  .footer-col h4{font-size:14px;color:#7FB4DC;font-weight:600;margin-bottom:16px;letter-spacing:.04em;}
  .footer-col ul{display:flex;flex-direction:column;gap:12px;}
  .footer-col a{font-size:14px;color:#C7D3DE;display:inline-block;transition:all .2s var(--ease);}
  .footer-col a:hover{color:#fff;transform:translateX(2px);}
  .footer-col .muted{font-size:14px;line-height:1.9;color:#9FB0BF;}
  .footer-bottom{
    margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:#8496A6;
  }
  .footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
  .footer-bottom .links a{color:#8496A6;transition:color .2s var(--ease);}
  .footer-bottom .links a:hover{color:#fff;}

  /* ============ 响应式 ============ */
  @media (max-width:1199px){
    .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
    .footer-col:last-child{grid-column:1 / -1;}
  }
  @media (max-width:1023px){
    .dock-nav{display:none;}
    .search-wrap{display:none;}
    .nav-toggle{display:inline-flex;}
    .dock-cta-text{display:none;}
    .dock{gap:12px;padding:0 12px 0 16px;}
    .brand-cn{font-size:15px;}
    .cat-hero .hero-grid{grid-template-columns:1fr;gap:26px;min-height:0;}
    .hero-thumb{max-width:100%;}
    .hero-thumb img{height:200px;}
    .feature-layout{grid-template-columns:1fr;}
    .small-stack{grid-template-rows:auto auto;}
    .point-grid{grid-template-columns:1fr;}
    .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));}
    .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .cta-block{grid-template-columns:1fr;padding:32px;}
  }
  @media (max-width:767px){
    .section{padding:56px 0;}
    .cat-hero{padding:112px 0 40px;}
    .big-card .body{padding:20px;}
    .small-card{grid-template-columns:104px minmax(0,1fr);padding:14px;gap:14px;}
    .cta-form{flex-direction:column;}
    .cta-form .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr;gap:30px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
  }
  @media (max-width:520px){
    .container{padding:0 16px;}
    .dock{padding:0 10px 0 12px;}
    .brand-mg{font-size:16px;padding:4px 6px;}
    .brand-cn{font-size:14px;}
    .brand-sub{display:none;}
    .stat-band{grid-template-columns:1fr;}
    .rel-grid{grid-template-columns:1fr;}
    .small-card{grid-template-columns:1fr;}
    .small-card .mini{aspect-ratio:16/9;}
    .faq-q{font-size:15px;padding:16px 18px;}
    .faq-a p{padding:0 18px 18px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  }

/* roulang page: article */
:root{
  --c-primary:#1668A8;
  --c-primary-deep:#0E4C7E;
  --c-secondary:#38A3B0;
  --c-accent:#F0703A;
  --c-accent-hover:#D95E2A;
  --c-ink:#0F1A24;
  --c-ink-2:#4A5A68;
  --c-ink-3:#8496A6;
  --c-bg:#F5F8FB;
  --c-surface:#FFFFFF;
  --c-band:#EDF3F8;
  --c-line:#DCE7EF;
  --c-ok:#2E9E6B;
  --c-warn:#D98A1F;
  --c-err:#C7483F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(15,26,36,.04),0 1px 3px rgba(15,26,36,.06);
  --sh2:0 6px 18px -6px rgba(22,104,168,.16),0 2px 6px rgba(15,26,36,.05);
  --sh3:0 18px 40px -16px rgba(22,104,168,.24);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-base:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","Archivo",ui-sans-serif,system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700}
p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
::selection{background:rgba(22,104,168,.16)}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,104,168,.28);border-radius:6px}

/* ---------- 顶部阅读进度 ---------- */
.progress-bar{position:fixed;top:0;left:0;height:3px;width:0;background:var(--c-primary);z-index:90;transition:width .12s linear}

/* ---------- 浮动 Dock 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;padding:12px 16px 0;pointer-events:none}
.dock{
  pointer-events:auto;
  max-width:1120px;margin:0 auto;
  height:64px;display:flex;align-items:center;gap:18px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh2);
  padding:0 12px 0 22px;
  transition:height .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled .dock{height:60px;box-shadow:var(--sh3)}
.site-header.is-scrolled::after{
  content:"";display:block;max-width:1120px;margin:0 auto;height:1px;
  background:linear-gradient(90deg,rgba(22,104,168,0) 0%,rgba(22,104,168,.35) 50%,rgba(22,104,168,0) 100%);
}
.dock-brand{display:inline-flex;align-items:baseline;gap:6px;flex:0 0 auto;max-width:180px}
.brand-mg{font-family:var(--font-num);font-weight:800;font-size:16px;letter-spacing:.08em;color:var(--c-primary)}
.brand-cn{font-size:17px;font-weight:700;color:var(--c-ink);white-space:nowrap}
.brand-sub{font-size:11px;line-height:1.5;letter-spacing:.06em;color:var(--c-ink-3);border:1px solid var(--c-line);border-radius:var(--r-pill);padding:1px 7px;white-space:nowrap}
.dock-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.dock-nav a{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:6px 0;white-space:nowrap}
.dock-nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transition:transform .2s var(--ease)}
.dock-nav a:hover{color:var(--c-primary)}
.dock-nav a:hover::after,.dock-nav a.is-active::after{transform:scaleX(1)}
.dock-nav a.is-active{color:var(--c-primary);font-weight:600}
.dock-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
.dock-nav + .dock-actions{margin-left:24px}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-surface);
  color:var(--c-ink-2);display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s var(--ease)
}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(22,104,168,.35);background:rgba(22,104,168,.06)}
.menu-btn{display:none;width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink);align-items:center;justify-content:center}

/* 搜索条 */
.search-bar{pointer-events:auto;max-width:1120px;margin:10px auto 0;display:none}
.search-bar.is-open{display:block}
.search-bar form{display:flex;gap:10px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-pill);box-shadow:var(--sh2);padding:8px 8px 8px 20px}
.search-bar input{
  flex:1;border:0;background:transparent;font-size:15px;color:var(--c-ink);
  height:38px;font-family:inherit
}
.search-bar input:focus{outline:none}

/* 移动菜单 */
.mobile-panel{
  pointer-events:auto;position:fixed;top:86px;left:16px;right:16px;z-index:59;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:20px;
  box-shadow:var(--sh3);padding:12px;display:none
}
.mobile-panel.is-open{display:block}
.mobile-panel a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;border-radius:12px;font-size:15px;color:var(--c-ink-2)}
.mobile-panel a:hover,.mobile-panel a.is-active{background:rgba(22,104,168,.07);color:var(--c-primary)}
.mobile-panel a + a{margin-top:6px}

/* ---------- 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;line-height:1;border:1px solid transparent;
  transition:all .2s var(--ease);cursor:pointer;white-space:nowrap
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh1)}
.btn-primary:hover{background:var(--c-accent-hover);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(15,26,36,.18)}
.btn-outline{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:rgba(22,104,168,.08)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-pill{border-radius:var(--r-pill);height:44px;padding:0 26px;background:var(--c-surface);border-color:var(--c-line);color:var(--c-ink-2);font-weight:500}
.btn-pill:hover{border-color:rgba(22,104,168,.35);color:var(--c-primary)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.06em;line-height:1.5;font-weight:600;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(22,104,168,.08);color:var(--c-primary)
}
.badge-secondary{background:rgba(56,163,176,.13);color:#22707A}
.badge-accent{background:rgba(240,112,58,.13);color:#C4521F}
.tag{
  display:inline-flex;align-items:center;font-size:12px;letter-spacing:.06em;
  padding:6px 14px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-ink-2);transition:all .2s var(--ease)
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(22,104,168,.05)}

/* ---------- 页面主体偏移 ---------- */
.page-main{padding-top:104px;padding-bottom:72px}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh1);transition:all .2s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28)}
.img-wrap{overflow:hidden;border-radius:var(--r-img);background:var(--c-band)}
.img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.img-wrap:hover img{transform:scale(1.03)}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background:var(--c-band);
  border-bottom:1px solid var(--c-line);
  padding:36px 0 34px;
  margin-top:-1px
}
.article-hero .rink-line{
  position:absolute;right:-90px;top:-70px;width:340px;height:340px;
  border:1px solid rgba(22,104,168,.12);border-radius:50%;pointer-events:none
}
.article-hero .rink-line::before{
  content:"";position:absolute;inset:60px;border:1px solid rgba(22,104,168,.10);border-radius:50%
}
.article-hero .rink-line::after{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:rgba(22,104,168,.10)
}
.article-hero .hero-inner{position:relative;z-index:2;max-width:860px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);margin-bottom:18px}
.breadcrumb a{color:var(--c-ink-3)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#B6C6D3}
.breadcrumb .current{color:var(--c-ink-2)}
.meta-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:14px}
.article-hero h1{
  font-size:clamp(26px,4vw,40px);line-height:1.28;font-weight:700;color:var(--c-ink);
  margin-bottom:20px;letter-spacing:.005em
}
.meta-line{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--c-ink-3)}
.meta-line .divider{width:1px;height:12px;background:var(--c-line);display:inline-block}
.meta-line i{color:var(--c-ink-3);font-size:13px}

/* ---------- 文章布局 ---------- */
.article-main{padding:52px 0 20px}
.article-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:44px;align-items:start}
.article-col{min-width:0}
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh1);padding:20px}
.side-card h3{font-size:15px;font-weight:600;color:var(--c-ink);margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--c-line)}
.side-cta{background:linear-gradient(135deg,rgba(22,104,168,.06),rgba(56,163,176,.06));border-color:rgba(22,104,168,.16)}
.side-cta p{font-size:14px;color:var(--c-ink-2);margin-bottom:14px;line-height:1.75}

/* 要点列表 */
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow:auto}
.toc-list a{
  display:block;font-size:14px;line-height:1.7;color:var(--c-ink-2);
  padding:7px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
  transition:all .2s var(--ease)
}
.toc-list a.lv3{padding-left:22px;font-size:13.5px;color:var(--c-ink-3)}
.toc-list a:hover{color:var(--c-primary);background:rgba(22,104,168,.05)}
.toc-list a.is-current{color:var(--c-primary);border-left-color:var(--c-primary);background:rgba(22,104,168,.07);font-weight:600}

/* 小列表 */
.mini-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px}
.mini-list li{padding-bottom:10px;border-bottom:1px dashed var(--c-line)}
.mini-list li:last-child{border-bottom:0;padding-bottom:0}
.mini-list a{font-size:14px;line-height:1.7;color:var(--c-ink-2);display:block}
.mini-list a:hover{color:var(--c-primary)}
.mini-list span{display:block;font-size:12px;color:var(--c-ink-3);margin-top:4px}

/* 内容分区导航（沿用首页结构） */
.side-nav{display:flex;flex-direction:column;gap:6px}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 14px;border:1px solid var(--c-line);border-radius:10px;
  background:var(--c-surface);font-size:14px;color:var(--c-ink-2);
  transition:all .2s var(--ease)
}
.side-nav a i{font-size:11px;color:var(--c-ink-3);transition:transform .2s var(--ease)}
.side-nav a:hover{border-color:rgba(22,104,168,.28);color:var(--c-primary);transform:translateX(2px)}
.side-nav a:hover i{color:var(--c-primary);transform:translateX(2px)}

/* ---------- 正文排版 ---------- */
.article-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:36px 40px;font-size:17px;line-height:1.9;color:var(--c-ink)
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;font-size:clamp(20px,2.2vw,24px);font-weight:700;line-height:1.4;
  margin:36px 0 14px;padding-left:12px
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;width:4px;height:18px;
  background:var(--c-primary);border-radius:2px
}
.article-body h3{font-size:18px;font-weight:600;line-height:1.5;color:var(--c-primary-deep);margin:26px 0 10px}
.article-body h4{font-size:17px;font-weight:600;line-height:1.55;margin:22px 0 10px;color:var(--c-ink-2)}
.article-body ul{list-style:none;padding-left:0;margin:0 0 18px}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:8px}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.78em;width:6px;height:6px;
  background:var(--c-primary);border-radius:1px
}
.article-body ol{padding-left:24px;margin:0 0 18px;list-style:decimal}
.article-body ol li{margin-bottom:8px}
.article-body ol li::marker{color:var(--c-primary);font-weight:600}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:var(--c-bg);
  border-left:3px solid var(--c-secondary);border-radius:0 10px 10px 0;
  color:var(--c-ink-2);font-size:16px;line-height:1.85
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{width:100%;height:auto;border-radius:var(--r-img);margin:22px auto}
.article-body figure{margin:22px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-ink-3);margin-top:8px}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-primary-deep)}
.article-body table{
  display:block;overflow-x:auto;max-width:100%;border-collapse:collapse;
  border:1px solid var(--c-line);border-radius:var(--r-img);margin:20px 0;font-size:15px
}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--c-band);font-weight:600;color:var(--c-primary-deep)}
.article-body code{background:var(--c-band);border-radius:6px;padding:2px 6px;font-size:15px;color:var(--c-primary-deep)}
.article-body strong{color:var(--c-ink);font-weight:600}

/* 空状态 */
.empty-state{
  text-align:center;padding:54px 24px;background:var(--c-band);
  border-radius:var(--r-card);border:1px solid var(--c-line)
}
.empty-state i{font-size:30px;color:var(--c-primary);opacity:.75}
.empty-state h2{font-size:20px;margin:16px 0 8px;color:var(--c-ink)}
.empty-state p{font-size:14px;color:var(--c-ink-2);margin-bottom:20px}

/* 标签行 */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}

/* ---------- 继续阅读双卡 ---------- */
.nav-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:36px}
.nav-card{
  display:flex;flex-direction:column;gap:8px;padding:20px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh1);transition:all .2s var(--ease)
}
.nav-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28)}
.nav-card .dir{font-size:12px;letter-spacing:.06em;color:var(--c-ink-3);display:flex;align-items:center;gap:8px}
.nav-card strong{font-size:17px;font-weight:600;line-height:1.5;color:var(--c-ink)}
.nav-card:hover strong{color:var(--c-primary)}
.nav-card p{font-size:13.5px;color:var(--c-ink-3);line-height:1.7}

/* ---------- 相关阅读 ---------- */
.related{margin-top:52px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px}
.section-head h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;color:var(--c-ink)}
.section-head h2::after{content:"";display:block;width:38px;height:3px;border-radius:2px;background:var(--c-primary);margin-top:10px}
.section-head a{font-size:14px;color:var(--c-primary)}
.section-head a:hover{color:var(--c-primary-deep)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.related-card{display:flex;gap:14px;padding:14px;align-items:flex-start}
.related-card .thumb{flex:0 0 96px;width:96px;aspect-ratio:4/3}
.related-card .info{min-width:0}
.related-card h3{font-size:15px;font-weight:600;line-height:1.55;color:var(--c-ink);margin-bottom:6px}
.related-card:hover h3{color:var(--c-primary)}
.related-card .time{font-size:12px;color:var(--c-ink-3)}
.back-row{display:flex;justify-content:center;margin-top:44px}

/* ---------- 订阅 CTA ---------- */
.subscribe{
  margin-top:64px;border-radius:20px;padding:44px 40px;
  background:linear-gradient(120deg,rgba(22,104,168,.07),rgba(56,163,176,.07));
  border:1px solid rgba(22,104,168,.14);
  display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center;
  position:relative;overflow:hidden
}
.subscribe::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:320px;height:320px;
  border:1px solid rgba(22,104,168,.12);border-radius:50%;pointer-events:none
}
.subscribe-text{position:relative;z-index:2}
.subscribe-text h2{font-size:clamp(20px,2.6vw,26px);font-weight:700;color:var(--c-ink);margin-bottom:10px}
.subscribe-text p{font-size:15px;color:var(--c-ink-2);line-height:1.8;max-width:420px}
.subscribe-form{position:relative;z-index:2}
.subscribe-form form{display:flex;gap:10px}
.subscribe-form input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:var(--c-surface);font-size:15px;
  color:var(--c-ink);font-family:inherit;transition:all .2s var(--ease)
}
.subscribe-form input::placeholder{color:var(--c-ink-3)}
.subscribe-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,104,168,.2)}
.subscribe-form .privacy{font-size:12px;color:var(--c-ink-3);margin-top:10px;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#C7D3DE;padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px}
.site-footer .brand{display:inline-flex;align-items:baseline;gap:6px;margin-bottom:16px}
.site-footer .brand-mg{color:#7FB4DC}
.site-footer .brand-cn{color:#fff}
.site-footer .brand-sub{color:#7E8E9C;border-color:rgba(255,255,255,.16)}
.site-footer p{font-size:14px;line-height:1.85;color:#9DAAB6;max-width:320px}
.footer-col h4{font-size:14px;font-weight:600;color:#7FB4DC;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:#C7D3DE;display:inline-block;transition:all .2s var(--ease)}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-col .muted{font-size:14px;color:#9DAAB6;line-height:1.95;max-width:none}
.footer-social{display:flex;gap:12px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:var(--r-pill);display:inline-flex;
  align-items:center;justify-content:center;background:rgba(255,255,255,.06);
  color:#C7D3DE;transition:all .2s var(--ease)
}
.footer-social a:hover{background:rgba(22,104,168,.5);color:#fff;transform:translateY(-2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding-top:22px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:#7E8E9C
}
.footer-bottom .links{display:flex;gap:20px}
.footer-bottom a{color:#7E8E9C}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 20px}
}
@media (max-width:1023px){
  .dock-nav{display:none}
  .menu-btn{display:inline-flex}
  .dock{padding:0 12px 0 18px;height:58px}
  .site-header.is-scrolled .dock{height:56px}
  .page-main{padding-top:96px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static;top:auto}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .subscribe{grid-template-columns:1fr;gap:24px;padding:34px 26px}
}
@media (max-width:767px){
  .article-hero h1{font-size:clamp(23px,6vw,30px)}
  .article-body{padding:26px 20px;font-size:16px;line-height:1.85}
  .article-body h2{font-size:20px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .nav-cards{grid-template-columns:minmax(0,1fr)}
  .subscribe-form form{flex-direction:column}
  .subscribe-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .brand-cn{font-size:16px}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .dock{height:56px;padding:0 10px 0 14px;gap:10px}
  .brand-sub{display:none}
  .btn-sm{height:36px;padding:0 14px;font-size:13px}
  .icon-btn,.menu-btn{width:38px;height:38px}
  .article-hero{padding:26px 0 24px}
  .article-body{padding:22px 16px}
  .side-card{padding:16px}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
  .card:hover,.nav-card:hover,.btn-primary:hover{transform:none}
}

/* roulang page: category3 */
:root{
    --c-primary:#1668A8;
    --c-primary-deep:#0E4C7E;
    --c-secondary:#38A3B0;
    --c-accent:#F0703A;
    --c-ink:#0F1A24;
    --c-ink-2:#4A5A68;
    --c-ink-3:#8496A6;
    --c-bg:#F5F8FB;
    --c-surface:#FFFFFF;
    --c-band:#EDF3F8;
    --c-line:#DCE7EF;
    --c-ok:#2E9E6B;
    --c-warn:#D98A1F;
    --c-err:#C7483F;
    --r-card:14px;
    --r-img:12px;
    --r-btn:10px;
    --r-pill:999px;
    --sh1:0 1px 2px rgba(15,26,36,.04),0 1px 3px rgba(15,26,36,.06);
    --sh2:0 6px 18px -6px rgba(22,104,168,.16),0 2px 6px rgba(15,26,36,.05);
    --sh3:0 18px 40px -16px rgba(22,104,168,.24);
    --ease:cubic-bezier(.2,.7,.3,1);
    --dock-h:64px;
  }

  *,*::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:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    text-align:left;
    -webkit-font-smoothing:antialiased;
    padding-top:96px;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
  input{font-family:inherit;font-size:15px;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  h1{font-size:clamp(28px,4.4vw,44px);line-height:1.28;font-weight:700;}
  h2{font-size:clamp(22px,3vw,32px);line-height:1.35;font-weight:700;}
  h3{font-size:20px;line-height:1.5;font-weight:600;}
  h4{font-size:17px;line-height:1.55;font-weight:600;}
  :focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,104,168,.28);border-radius:6px;}
  ::selection{background:rgba(22,104,168,.16);}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  .section{padding:72px 0;}
  .section-tight{padding:52px 0;}
  .num{font-family:Inter,Archivo,system-ui,sans-serif;letter-spacing:.02em;}

  /* ============ 浮动 Dock 导航 ============ */
  .dock-wrap{
    position:fixed;top:0;left:0;right:0;z-index:80;
    padding:14px 16px 0;
    pointer-events:none;
  }
  .dock{
    pointer-events:auto;
    max-width:1120px;margin:0 auto;
    min-height:var(--dock-h);
    display:flex;align-items:center;gap:20px;
    padding:10px 14px 10px 18px;
    background:rgba(255,255,255,.96);
    border:1px solid var(--c-line);
    border-radius:var(--r-pill);
    box-shadow:var(--sh2);
    transition:min-height 300ms var(--ease),box-shadow 300ms var(--ease),transform 300ms var(--ease);
  }
  .dock.is-scrolled{min-height:56px;box-shadow:var(--sh3);}
  .dock::after{
    content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;border-radius:999px;
    background:linear-gradient(90deg,rgba(22,104,168,0) 0%,rgba(22,104,168,.28) 50%,rgba(22,104,168,0) 100%);
    opacity:0;transition:opacity 300ms var(--ease);
  }
  .dock.is-scrolled::after{opacity:1;}
  .dock{position:sticky;}

  .brand{display:flex;align-items:center;gap:8px;flex-shrink:0;max-width:180px;}
  .brand-mg{
    font-family:Inter,Archivo,system-ui,sans-serif;
    font-weight:700;font-size:18px;letter-spacing:.08em;
    color:var(--c-surface);background:var(--c-primary);
    padding:4px 9px;border-radius:9px;line-height:1.1;
  }
  .brand-cn{font-size:15px;font-weight:600;color:var(--c-ink);white-space:nowrap;}
  .brand-sub{
    font-size:11px;color:var(--c-secondary);border:1px solid rgba(56,163,176,.45);
    border-radius:var(--r-pill);padding:1px 7px;letter-spacing:.06em;white-space:nowrap;
  }

  .dock-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
  .dock-nav a{
    position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);
    padding:6px 0;transition:color 200ms var(--ease);white-space:nowrap;
  }
  .dock-nav a::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
    background:var(--c-primary);transform:scaleX(0);transform-origin:left;
    transition:transform 220ms var(--ease);
  }
  .dock-nav a:hover{color:var(--c-primary);}
  .dock-nav a:hover::after{transform:scaleX(1);}
  .dock-nav a.is-active{color:var(--c-primary);font-weight:600;}
  .dock-nav a.is-active::after{transform:scaleX(1);}

  .dock-actions{display:flex;align-items:center;gap:10px;margin-left:8px;}
  .icon-btn{
    width:40px;height:40px;border-radius:var(--r-pill);
    display:inline-flex;align-items:center;justify-content:center;
    color:var(--c-ink-2);border:1px solid transparent;
    transition:all 200ms var(--ease);
  }
  .icon-btn:hover{background:rgba(22,104,168,.08);color:var(--c-primary);border-color:rgba(22,104,168,.18);}
  .hamburger{display:none;}

  .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;line-height:1;
    transition:all 200ms var(--ease);white-space:nowrap;
  }
  .btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh1);}
  .btn-primary:hover{background:#D95E2A;transform:translateY(-1px);box-shadow:var(--sh2);}
  .btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18);}
  .btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary);}
  .btn-ghost:hover{background:rgba(22,104,168,.08);transform:translateY(-1px);}
  .btn-sm{height:40px;padding:0 18px;font-size:14px;}

  .searchbar{
    pointer-events:auto;
    max-width:1120px;margin:10px auto 0;
    display:none;gap:8px;align-items:center;
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-pill);
    padding:8px 8px 8px 18px;box-shadow:var(--sh2);
  }
  .searchbar.is-open{display:flex;}
  .searchbar input{
    flex:1;border:0;outline:none;height:36px;background:transparent;color:var(--c-ink);
  }
  .searchbar input::placeholder{color:var(--c-ink-3);}
  .searchbar .btn{height:38px;padding:0 18px;font-size:14px;}

  .mobile-panel{
    pointer-events:auto;
    max-width:1120px;margin:10px auto 0;
    display:none;background:#fff;border:1px solid var(--c-line);
    border-radius:20px;box-shadow:var(--sh3);padding:14px;
  }
  .mobile-panel.is-open{display:block;}
  .mobile-panel a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:48px;padding:0 14px;border-radius:12px;
    font-size:15px;color:var(--c-ink-2);font-weight:500;
    transition:all 200ms var(--ease);
  }
  .mobile-panel a + a{margin-top:6px;}
  .mobile-panel a:hover,.mobile-panel a.is-active{background:rgba(22,104,168,.08);color:var(--c-primary);}

  /* ============ 紧凑 Hero ============ */
  .cat-hero{
    position:relative;overflow:hidden;
    background:var(--c-band);
    border-bottom:1px solid var(--c-line);
    min-height:250px;
    display:flex;align-items:center;
  }
  .cat-hero .rink-line{position:absolute;inset:0;pointer-events:none;}
  .rink-line .circle{
    position:absolute;width:340px;height:340px;border:1px solid rgba(22,104,168,.13);
    border-radius:50%;right:-90px;top:-120px;
  }
  .rink-line .circle.small{width:190px;height:190px;right:60px;top:auto;bottom:-100px;}
  .rink-line .mid{
    position:absolute;left:0;right:0;top:50%;height:1px;background:rgba(22,104,168,.08);
  }
  .rink-line .arc{
    position:absolute;width:220px;height:220px;border:1px solid rgba(56,163,176,.14);
    border-radius:50%;left:-110px;bottom:-140px;
  }
  .cat-hero-inner{
    position:relative;z-index:2;
    display:grid;grid-template-columns:minmax(0,1fr) 240px;
    gap:40px;align-items:center;width:100%;
    padding:44px 0;
  }
  .crumb{
    font-size:13px;color:var(--c-ink-3);display:flex;align-items:center;gap:8px;margin-bottom:14px;
  }
  .crumb a{color:var(--c-ink-3);transition:color 200ms var(--ease);}
  .crumb a:hover{color:var(--c-primary);}
  .crumb span{color:var(--c-ink-2);}
  .cat-hero h1{margin-bottom:12px;color:var(--c-ink);}
  .cat-hero .lead{font-size:15px;color:var(--c-ink-2);max-width:620px;line-height:1.9;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
  .tag{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12px;letter-spacing:.06em;line-height:1.5;
    padding:5px 12px;border-radius:var(--r-pill);
    background:rgba(56,163,176,.12);color:var(--c-primary-deep);
    border:1px solid rgba(56,163,176,.25);
  }
  .hero-thumb{
    border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line);
    box-shadow:var(--sh2);background:#fff;
  }
  .hero-thumb img{width:100%;height:160px;object-fit:cover;transition:transform 300ms var(--ease);}
  .hero-thumb:hover img{transform:scale(1.03);}

  /* ============ 通用板块头 ============ */
  .sec-head{max-width:720px;margin-bottom:36px;}
  .sec-head .eyebrow{
    display:inline-block;font-size:12px;letter-spacing:.08em;
    color:var(--c-secondary);font-weight:600;margin-bottom:10px;
  }
  .sec-head h2{margin-bottom:12px;}
  .sec-head p{color:var(--c-ink-2);font-size:15px;line-height:1.9;}

  .intro-block{
    background:var(--c-surface);border:1px solid var(--c-line);
    border-radius:var(--r-card);box-shadow:var(--sh1);
    padding:28px 32px;max-width:900px;
  }
  .intro-block p{color:var(--c-ink-2);font-size:15px;line-height:1.95;}
  .intro-block p + p{margin-top:12px;}

  /* ============ 四宫格 ============ */
  .grid-quad{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    gap:24px;
  }
  .quad-card{
    background:var(--c-surface);border:1px solid var(--c-line);
    border-radius:var(--r-card);box-shadow:var(--sh1);
    overflow:hidden;display:flex;flex-direction:column;
    transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
  }
  .quad-card:hover{
    transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28);
  }
  .quad-media{position:relative;overflow:hidden;background:var(--c-band);aspect-ratio:4/3;}
  .quad-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms var(--ease);}
  .quad-card:hover .quad-media img{transform:scale(1.03);}
  .quad-index{
    position:absolute;left:14px;top:14px;
    font-family:Inter,Archivo,system-ui,sans-serif;font-size:12px;font-weight:600;
    letter-spacing:.08em;color:#fff;background:rgba(15,26,36,.72);
    padding:4px 10px;border-radius:var(--r-pill);
  }
  .quad-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1;}
  .quad-body h3{margin-bottom:10px;color:var(--c-ink);}
  .quad-body p{color:var(--c-ink-2);font-size:14px;line-height:1.85;}
  .quad-meta{
    margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line);
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    font-size:13px;color:var(--c-ink-3);
  }
  .quad-meta .level{color:var(--c-primary);font-weight:600;}

  /* ============ 指标条 ============ */
  .stat-band{background:var(--c-band);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
  .stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
  .stat-item{padding:8px 0 8px 18px;border-left:2px solid rgba(22,104,168,.2);}
  .stat-item .v{font-family:Inter,Archivo,system-ui,sans-serif;font-size:34px;font-weight:600;color:var(--c-primary-deep);line-height:1.2;}
  .stat-item .k{font-size:14px;color:var(--c-ink-3);margin-top:6px;}

  /* ============ FAQ ============ */
  .faq-list{max-width:860px;}
  .faq-item{
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
    box-shadow:var(--sh1);overflow:hidden;transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
  }
  .faq-item + .faq-item{margin-top:12px;}
  .faq-item.is-open{border-color:rgba(22,104,168,.35);box-shadow:var(--sh2);}
  .faq-q{
    width:100%;min-height:64px;display:flex;align-items:center;gap:16px;
    padding:16px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);
    position:relative;transition:color 200ms var(--ease);
  }
  .faq-item.is-open .faq-q::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);
  }
  .faq-q:hover{color:var(--c-primary);}
  .faq-q .mark{
    margin-left:auto;font-size:15px;color:var(--c-primary);flex-shrink:0;
    transition:transform 220ms var(--ease);
  }
  .faq-item.is-open .faq-q .mark{transform:rotate(45deg);}
  .faq-a{display:none;padding:0 20px 20px 20px;font-size:15px;line-height:1.85;color:var(--c-ink-2);}
  .faq-item.is-open .faq-a{display:block;}

  /* ============ CTA ============ */
  .cta-block{
    background:var(--c-band);
    border:1px solid var(--c-line);
    border-radius:20px;
    padding:40px;
    display:grid;grid-template-columns:minmax(0,1fr) minmax(0,380px);
    gap:40px;align-items:center;position:relative;overflow:hidden;
  }
  .cta-block::before{
    content:"";position:absolute;width:280px;height:280px;border:1px solid rgba(22,104,168,.12);
    border-radius:50%;right:-100px;top:-120px;
  }
  .cta-block h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:10px;}
  .cta-block p{color:var(--c-ink-2);font-size:15px;line-height:1.9;}
  .cta-form{display:flex;gap:10px;position:relative;z-index:2;}
  .cta-form input{
    flex:1;height:48px;border-radius:var(--r-btn);border:1px solid var(--c-line);
    background:#fff;padding:0 16px;color:var(--c-ink);outline:none;
    transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
  }
  .cta-form input::placeholder{color:var(--c-ink-3);}
  .cta-form input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,104,168,.2);}
  .cta-note{font-size:12px;color:var(--c-ink-3);margin-top:12px;position:relative;z-index:2;}

  /* ============ 相关分类互链 ============ */
  .rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
  .rel-card{
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:22px;box-shadow:var(--sh1);display:flex;flex-direction:column;gap:10px;
    transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
  }
  .rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28);}
  .rel-card .badge{
    align-self:flex-start;font-size:12px;letter-spacing:.06em;
    padding:4px 10px;border-radius:var(--r-pill);
    background:rgba(22,104,168,.1);color:var(--c-primary-deep);
  }
  .rel-card h4{color:var(--c-ink);}
  .rel-card p{font-size:14px;color:var(--c-ink-2);line-height:1.8;}
  .rel-card .more{font-size:13px;color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;margin-top:auto;}
  .rel-card:hover .more{color:var(--c-primary-deep);}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--c-ink);color:#C7D3DE;margin-top:80px;}
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;
    gap:40px;padding:64px 0 40px;
  }
  .footer-brand .brand{margin-bottom:16px;}
  .footer-brand .brand-cn{color:#fff;}
  .footer-brand .brand-sub{color:#7FB4DC;border-color:rgba(127,180,220,.45);}
  .footer-brand p{font-size:14px;line-height:1.85;color:#9FB0C0;max-width:300px;}
  .footer-social{display:flex;gap:10px;margin-top:18px;}
  .footer-social a{
    width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
    background:rgba(255,255,255,.06);color:#C7D3DE;transition:all 200ms var(--ease);
  }
  .footer-social a:hover{background:rgba(22,104,168,.5);color:#fff;transform:translateY(-2px);}
  .footer-col h4{color:#7FB4DC;font-size:14px;margin-bottom:16px;letter-spacing:.04em;}
  .footer-col ul li + li{margin-top:10px;}
  .footer-col a{font-size:14px;color:#C7D3DE;display:inline-block;transition:all 200ms var(--ease);}
  .footer-col a:hover{color:#fff;transform:translateX(2px);}
  .footer-col .muted{font-size:14px;line-height:1.9;color:#9FB0C0;}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.08);
    padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;
    gap:16px;flex-wrap:wrap;font-size:13px;color:#8496A6;
  }
  .footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap;}
  .footer-bottom .links a{color:#8496A6;transition:color 200ms var(--ease);}
  .footer-bottom .links a:hover{color:#fff;}

  /* ============ 响应式 ============ */
  @media (max-width:1023px){
    .dock-nav{display:none;}
    .hamburger{display:inline-flex;}
    .dock{padding:10px 12px 10px 16px;gap:12px;}
    .cat-hero-inner{grid-template-columns:1fr;gap:24px;}
    .hero-thumb img{height:200px;}
    .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .cta-block{grid-template-columns:1fr;gap:24px;padding:32px;}
    .rel-grid{grid-template-columns:1fr 1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px;}
  }
  @media (max-width:767px){
    body{padding-top:88px;}
    .section{padding:56px 0;}
    .grid-quad{grid-template-columns:1fr;}
    .rel-grid{grid-template-columns:1fr;}
    .quad-card{box-shadow:var(--sh1);}
    .intro-block{padding:22px;}
  }
  @media (max-width:639px){
    .brand-sub{display:none;}
    .brand-cn{font-size:14px;}
    .cta-form{flex-direction:column;}
    .cta-form .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .stat-grid{grid-template-columns:1fr 1fr;gap:16px;}
    .cat-hero-inner{padding:32px 0;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  }

/* roulang page: category2 */
:root{
  --c-primary:#1668A8;
  --c-primary-deep:#0E4C7E;
  --c-secondary:#38A3B0;
  --c-accent:#F0703A;
  --c-accent-hover:#D95E2A;
  --c-ink:#0F1A24;
  --c-ink-2:#4A5A68;
  --c-ink-3:#8496A6;
  --c-bg:#F5F8FB;
  --c-surface:#FFFFFF;
  --c-band:#EDF3F8;
  --c-line:#DCE7EF;
  --c-ok:#2E9E6B;
  --c-warn:#D98A1F;
  --c-err:#C7483F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(15,26,36,.04),0 1px 3px rgba(15,26,36,.06);
  --sh2:0 6px 18px -6px rgba(22,104,168,.16),0 2px 6px rgba(15,26,36,.05);
  --sh3:0 18px 40px -16px rgba(22,104,168,.24);
  --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 SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  padding-top:96px;
  text-align:left;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;color:var(--c-ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid rgba(22,104,168,.7);outline-offset:2px;border-radius:6px}
::selection{background:rgba(22,104,168,.16)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--c-band)}
::-webkit-scrollbar-thumb{background:#B9CBD9;border-radius:999px;border:2px solid var(--c-band)}
::-webkit-scrollbar-thumb:hover{background:var(--c-primary)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.muted{color:var(--c-ink-3)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;font-weight:600;
  color:var(--c-primary-deep);background:rgba(22,104,168,.08);
  border-radius:var(--r-pill);padding:5px 12px;
}
.section{padding:72px 0}
.section--band{background:var(--c-band)}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,3vw,32px);margin:14px 0 12px}
.section-head p{color:var(--c-ink-2);font-size:15px}

/* ---------- Dock 导航 ---------- */
.dock-wrap{position:fixed;top:0;left:0;right:0;z-index:90;padding:16px 16px 0;pointer-events:none}
.dock{
  pointer-events:auto;
  max-width:1120px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  height:64px;padding:0 12px 0 16px;
  background:#fff;border:1px solid var(--c-line);
  border-radius:999px;box-shadow:var(--sh2);
  position:relative;
  transition:height .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.dock::after{
  content:"";position:absolute;left:24px;right:24px;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(22,104,168,0),rgba(22,104,168,.35),rgba(22,104,168,0));
  opacity:0;transition:opacity .3s var(--ease);
}
.dock-wrap.is-scrolled .dock{height:60px;box-shadow:var(--sh3);border-color:#CFDFEC}
.dock-wrap.is-scrolled .dock::after{opacity:1}
.brand{display:flex;align-items:center;gap:8px;flex-shrink:0}
.brand-mg{
  font-family:Inter,Archivo,system-ui,sans-serif;font-weight:700;font-size:13px;
  letter-spacing:.08em;color:#fff;background:var(--c-primary);border-radius:8px;padding:4px 7px;line-height:1;
}
.brand-cn{font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-sub{font-size:11px;color:var(--c-ink-3);letter-spacing:.06em;line-height:1;padding-top:2px}
.dock-links{display:flex;align-items:center;gap:26px;margin:0 auto}
.dock-links a{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:6px 0;white-space:nowrap}
.dock-links a:hover{color:var(--c-primary)}
.dock-links a.active{color:var(--c-primary)}
.dock-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--c-primary)}
.dock-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--c-line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  color:var(--c-ink-2);transition:all .2s var(--ease);
}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(22,104,168,.35);background:rgba(22,104,168,.05)}
.menu-toggle{display:none}
.search-panel{pointer-events:auto;max-width:1120px;margin:10px auto 0;display:none}
.search-panel.open{display:block}
.search-inner{
  display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--c-line);
  border-radius:999px;padding:7px 7px 7px 18px;box-shadow:var(--sh2);
}
.search-inner input{flex:1;border:0;background:transparent;outline:none;font-size:15px;height:34px}
.search-inner input::placeholder{color:var(--c-ink-3)}
.mobile-panel{
  pointer-events:auto;max-width:1120px;margin:10px auto 0;background:#fff;
  border:1px solid var(--c-line);border-radius:20px;box-shadow:var(--sh3);
  padding:14px;display:none;
}
.mobile-panel.open{display:block}
.mobile-panel .side-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
.mobile-panel .side-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:12px;font-size:15px;font-weight:500;
  color:var(--c-ink-2);background:var(--c-bg);
}
.mobile-panel .side-nav a:hover{background:rgba(22,104,168,.08);color:var(--c-primary)}
.mobile-panel .side-nav a.active{color:var(--c-primary);background:rgba(22,104,168,.1)}
.mobile-panel .side-nav a i{font-size:12px;color:var(--c-ink-3)}

/* ---------- 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;
  transition:all .2s var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:#fff}
.btn-primary:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(15,26,36,.2)}
.btn-ghost{background:#fff;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:rgba(22,104,168,.08);color:var(--c-primary-deep);border-color:var(--c-primary-deep)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);flex-wrap:wrap}
.crumb a{color:var(--c-ink-3)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:#B7C6D3}
.crumb .current{color:var(--c-ink-2);font-weight:500}

/* ---------- 分类 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;background:var(--c-band);
  border-bottom:1px solid var(--c-line);
}
.page-hero .deco{position:absolute;inset:0;pointer-events:none;opacity:.5}
.hero-inner{
  position:relative;display:grid;grid-template-columns:1.4fr .9fr;gap:36px;
  align-items:center;min-height:250px;padding:38px 0;
}
.hero-text h1{font-size:clamp(28px,4.4vw,40px);margin:14px 0 12px;letter-spacing:.01em}
.hero-text p{color:var(--c-ink-2);font-size:15.5px;max-width:560px}
.hero-figure{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh2);border:1px solid #fff}
.hero-figure img{width:100%;height:186px;object-fit:cover}
.hero-figure figcaption{
  position:absolute;left:12px;bottom:12px;background:rgba(255,255,255,.9);
  color:var(--c-primary-deep);font-size:12px;letter-spacing:.06em;font-weight:600;
  padding:5px 12px;border-radius:999px;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.pill{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.06em;
  font-weight:600;padding:6px 12px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-ink-2);
}
.pill i{color:var(--c-secondary);font-size:12px}

/* ---------- 分类正文 ---------- */
.intro{padding:40px 0 8px}
.intro-box{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  border-left:4px solid var(--c-primary);
  padding:24px 26px;box-shadow:var(--sh1);
  color:var(--c-ink-2);font-size:15.5px;line-height:1.9;
}
.intro-box strong{color:var(--c-primary-deep)}

/* ---------- 交替图文行 ---------- */
.rows{display:flex;flex-direction:column;gap:22px}
.row-block{
  display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.row-block:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28)}
.row-media{height:190px;border-radius:var(--r-img);overflow:hidden;background:var(--c-band);order:1}
.row-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.row-block:hover .row-media img{transform:scale(1.03)}
.row-text{order:2;min-width:0}
.row-block.reverse .row-media{order:2}
.row-block.reverse .row-text{order:1}
.row-text h3{font-size:20px;margin:12px 0 10px}
.row-text p{color:var(--c-ink-2);font-size:15px;line-height:1.85}
.row-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  font-size:12px;letter-spacing:.06em;font-weight:600;color:var(--c-primary-deep);
  background:rgba(56,163,176,.12);border-radius:999px;padding:5px 11px;
}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh1);
}
.stat-num{
  font-family:Inter,Archivo,system-ui,sans-serif;font-weight:600;
  font-size:clamp(26px,3vw,36px);color:var(--c-primary-deep);line-height:1.1;
}
.stat-num small{font-size:14px;font-weight:600;color:var(--c-ink-2);margin-left:4px}
.stat-label{font-size:14px;color:var(--c-ink-3);margin-top:8px;line-height:1.6}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{border:1px solid var(--c-line);border-radius:var(--r-card);background:#fff;overflow:hidden;box-shadow:var(--sh1);transition:border-color .2s var(--ease)}
.faq-item.open{border-color:rgba(22,104,168,.32)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:14px 20px 14px 18px;background:transparent;border:0;cursor:pointer;
  text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);
  border-left:3px solid transparent;transition:all .22s var(--ease);
}
.faq-item.open .faq-q{border-left-color:var(--c-primary);color:var(--c-primary-deep)}
.faq-q .ico{
  flex-shrink:0;width:26px;height:26px;border-radius:999px;border:1px solid var(--c-line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-primary);
  font-size:12px;transition:transform .22s var(--ease),background .22s var(--ease);
}
.faq-item.open .faq-q .ico{transform:rotate(45deg);background:rgba(22,104,168,.08)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
.faq-a p{padding:0 20px 20px 21px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.rel-card{
  display:flex;flex-direction:column;gap:10px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28)}
.rel-card .rel-ico{
  width:38px;height:38px;border-radius:10px;background:var(--c-band);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
}
.rel-card h4{font-size:16px;font-weight:600}
.rel-card p{font-size:14px;color:var(--c-ink-2);line-height:1.7}
.rel-card .go{font-size:13px;color:var(--c-primary);font-weight:600;letter-spacing:.02em}
.rel-card:hover .go{color:var(--c-primary-deep)}
.rel-card.active{border-color:rgba(22,104,168,.4);background:#fff}

/* ---------- CTA ---------- */
.cta-panel{
  background:linear-gradient(135deg,rgba(22,104,168,.07),rgba(56,163,176,.07)),var(--c-band);
  border:1px solid rgba(22,104,168,.16);
  border-radius:20px;padding:34px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;
}
.cta-panel h2{font-size:clamp(20px,2.6vw,28px);margin-bottom:10px}
.cta-panel p{color:var(--c-ink-2);font-size:15px}
.sub-form{display:flex;gap:10px}
.sub-form input{
  flex:1;height:48px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:#fff;padding:0 16px;font-size:15px;outline:none;min-width:0;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form input::placeholder{color:var(--c-ink-3)}
.sub-form input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,104,168,.2)}
.sub-form input.err{border-color:var(--c-err);box-shadow:0 0 0 3px rgba(199,72,63,.16)}
.form-note{font-size:12px;color:var(--c-ink-3);margin-top:10px}
.form-msg{font-size:13px;margin-top:8px;min-height:18px}
.form-msg.ok{color:var(--c-ok)}
.form-msg.bad{color:var(--c-err)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F1A24;color:#C7D3DE;padding:56px 0 26px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand .brand-cn{color:#fff}
.footer-brand .brand-sub{color:#7FB4DC}
.footer-brand .brand-mg{background:var(--c-primary);color:#fff}
.site-footer p{font-size:14px;line-height:1.8;color:#9FB0C0}
.footer-social{display:flex;gap:10px;margin-top:16px}
.footer-social a{
  width:38px;height:38px;border-radius:999px;border:1px solid rgba(255,255,255,.14);
  display:inline-flex;align-items:center;justify-content:center;color:#C7D3DE;font-size:14px;
  transition:all .2s var(--ease);
}
.footer-social a:hover{color:#fff;border-color:#7FB4DC;background:rgba(127,180,220,.12);transform:translateY(-2px)}
.footer-col h4{font-size:14px;color:#7FB4DC;margin-bottom:14px;font-weight:600;letter-spacing:.04em}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#C7D3DE;display:inline-block;transition:all .2s var(--ease)}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8496A6;
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom .links a{color:#8496A6}
.footer-bottom .links a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  body{padding-top:88px}
  .dock-links{display:none}
  .menu-toggle{display:inline-flex}
  .hero-inner{grid-template-columns:1fr;gap:22px;padding:30px 0}
  .hero-figure img{height:170px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);gap:22px}
  .cta-panel{grid-template-columns:1fr;padding:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .row-block{grid-template-columns:1fr;gap:18px;padding:16px}
  .row-block .row-media{order:1 !important;height:196px}
  .row-block .row-text{order:2 !important}
  .section{padding:52px 0}
  .search-inner{border-radius:16px;padding:7px 7px 7px 14px}
}
@media (max-width:519px){
  body{padding-top:82px}
  .dock{height:56px;padding:0 8px 0 12px;gap:10px}
  .dock-wrap.is-scrolled .dock{height:54px}
  .brand-sub{display:none}
  .brand-cn{font-size:14px}
  .rel-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:18px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
  .cta-panel{padding:22px}
  .intro-box{padding:18px 18px}
  .hero-figure img{height:150px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --c-primary:#1668A8;
  --c-primary-deep:#0E4C7E;
  --c-secondary:#38A3B0;
  --c-accent:#F0703A;
  --c-ink:#0F1A24;
  --c-ink-2:#4A5A68;
  --c-ink-3:#8496A6;
  --c-bg:#F5F8FB;
  --c-surface:#FFFFFF;
  --c-band:#EDF3F8;
  --c-line:#DCE7EF;
  --c-success:#2E9E6B;
  --c-warn:#D98A1F;
  --c-error:#C7483F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(15,26,36,.04),0 1px 3px rgba(15,26,36,.06);
  --sh2:0 6px 18px -6px rgba(22,104,168,.16),0 2px 6px rgba(15,26,36,.05);
  --sh3:0 18px 40px -16px rgba(22,104,168,.24);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  text-align:left;
  -webkit-font-smoothing:antialiased;
  padding-top:100px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-ink)}
p{margin:0}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,104,168,.28);border-radius:6px}
::selection{background:rgba(56,163,176,.24)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:76px 0}
.section-band{background:var(--c-band)}
.section-white{background:var(--c-surface)}

/* ---------- 浮动 Dock 导航 ---------- */
.dock-wrap{position:fixed;top:14px;left:0;right:0;z-index:80;padding:0 16px;pointer-events:none}
.dock{
  position:relative;
  pointer-events:auto;
  max-width:1120px;margin:0 auto;
  height:64px;
  display:flex;align-items:center;gap:18px;
  padding:0 14px 0 20px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh2);
  transition:height .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.dock::after{
  content:'';position:absolute;left:24px;right:24px;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(22,104,168,0),rgba(22,104,168,.32),rgba(22,104,168,0));
  opacity:0;transition:opacity .3s var(--ease);
}
.dock.is-scrolled{height:60px;box-shadow:var(--sh3)}
.dock.is-scrolled::after{opacity:1}

.brand{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;flex:0 0 auto}
.brand-mg{font-family:Archivo,Inter,system-ui,sans-serif;font-weight:700;font-size:18px;letter-spacing:.08em;color:var(--c-primary)}
.brand-cn{font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--c-ink)}
.brand-sub{font-size:11px;font-weight:600;letter-spacing:.06em;line-height:1;padding:4px 7px;border-radius:var(--r-pill);border:1px solid rgba(22,104,168,.28);color:var(--c-primary)}

.dock-body{display:flex;align-items:center;justify-content:space-between;gap:18px;flex:1;min-width:0}
.side-nav{display:flex;align-items:center;gap:28px;min-width:0}
.side-nav a{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  padding:6px 0;transition:color .2s var(--ease);
}
.side-nav a i{display:none;font-size:12px;color:var(--c-ink-3)}
.side-nav a:hover{color:var(--c-primary-deep)}
.side-nav a.active{color:var(--c-primary)}
.side-nav a.active::after{
  content:'';position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--c-primary);border-radius:2px;
}

.dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--c-line);color:var(--c-ink-2);
  cursor:pointer;transition:all .2s var(--ease);
}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(22,104,168,.34);background:rgba(22,104,168,.05)}
.dock-search{
  display:none;align-items:center;gap:6px;
  height:40px;padding:0 6px 0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);background:#fff;
}
.dock-search.is-open{display:inline-flex}
.dock-search input{border:0;outline:none;background:transparent;width:160px;font-size:14px}
.dock-search button{
  width:30px;height:30px;border:0;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;cursor:pointer;transition:background .2s var(--ease);
}
.dock-search button:hover{background:var(--c-primary-deep)}
.dock-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  align-items:center;justify-content:center;cursor:pointer;margin-left:auto;
}

/* ---------- 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;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--c-accent);color:#fff}
.btn-primary:hover{background:#D95E2A;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:none;box-shadow:inset 0 2px 6px rgba(15,26,36,.2)}
.btn-ghost{background:#fff;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:rgba(22,104,168,.08)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.06em;
  background:rgba(56,163,176,.12);color:#1F6E78;white-space:nowrap;
}
.badge-ver{background:rgba(22,104,168,.1);color:var(--c-primary-deep);font-family:Archivo,Inter,system-ui,sans-serif;letter-spacing:.04em}
.badge-accent{background:rgba(240,112,58,.12);color:#B54A1B}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.06em;color:var(--c-ink-3);background:#fff;
}

/* ---------- 分类 Hero ---------- */
.hero-cat{
  position:relative;overflow:hidden;
  background:var(--c-band);
  border-bottom:1px solid var(--c-line);
  min-height:262px;
  display:flex;align-items:center;
}
.rink-lines{position:absolute;inset:0;pointer-events:none;overflow:hidden;aria-hidden:true}
.rink-center{position:absolute;left:0;right:0;top:50%;height:1px;background:var(--c-primary);opacity:.1}
.rink-circle{position:absolute;right:-70px;bottom:-90px;width:250px;height:250px;border:1px solid var(--c-primary);border-radius:999px;opacity:.12}
.rink-goal{position:absolute;left:-40px;top:-30px;width:190px;height:120px;border:1px solid var(--c-secondary);border-radius:6px;opacity:.13}
.hero-cat .container{position:relative;z-index:2}
.hero-inner{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:center;padding:34px 0}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);margin-bottom:12px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-line)}
.breadcrumb .current{color:var(--c-ink-2)}
.hero-cat h1{font-size:clamp(28px,4.4vw,44px);line-height:1.28;letter-spacing:.01em}
.hero-sub{margin-top:12px;font-size:16px;color:var(--c-ink-2);max-width:520px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.hero-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh2);background:#fff}
.hero-media img{width:100%;height:196px;object-fit:cover;transition:transform .3s var(--ease)}
.hero-media:hover img{transform:scale(1.03)}

/* ---------- 通用板块标题 ---------- */
.sec-head{max-width:740px;margin-bottom:34px}
.sec-eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--c-primary);margin-bottom:10px}
.sec-head h2{font-size:clamp(22px,3vw,32px);line-height:1.35}
.sec-head p{margin-top:12px;color:var(--c-ink-2);font-size:16px}

/* ---------- 分类导语 ---------- */
.cat-intro{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:40px;align-items:start}
.cat-intro p{font-size:16px;line-height:1.9;color:var(--c-ink-2);margin-bottom:16px}
.cat-intro p:last-child{margin-bottom:0}
.intro-note{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:22px;
}
.intro-note h3{font-size:16px;margin-bottom:12px}
.intro-note li{
  list-style:none;font-size:14px;color:var(--c-ink-2);
  padding-left:16px;position:relative;line-height:1.7;margin-bottom:10px;
}
.intro-note li:last-child{margin-bottom:0}
.intro-note li::before{
  content:'';position:absolute;left:0;top:9px;width:6px;height:6px;
  background:var(--c-primary);border-radius:1px;
}

/* ---------- 版本概览 ---------- */
.overview{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh1);overflow:hidden;
}
.overview-item{padding:26px 24px;border-right:1px solid var(--c-line)}
.overview-item:last-child{border-right:0}
.overview-item .label{font-size:13px;color:var(--c-ink-3);letter-spacing:.04em}
.overview-item .value{
  font-family:Archivo,Inter,system-ui,sans-serif;font-weight:700;
  font-size:30px;line-height:1.25;color:var(--c-primary-deep);margin-top:6px;
}
.overview-item .value.small{font-size:20px;color:var(--c-ink)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:'';position:absolute;left:11px;top:10px;bottom:14px;width:1px;
  background:linear-gradient(180deg,rgba(22,104,168,.45),rgba(22,104,168,.12));
}
.tl-item{position:relative;padding-left:46px;margin-bottom:22px}
.tl-item:last-child{margin-bottom:0}
.tl-node{
  position:absolute;left:4px;top:24px;width:15px;height:15px;border-radius:999px;
  background:#fff;border:3px solid var(--c-primary);box-shadow:0 0 0 4px rgba(22,104,168,.08);
}
.tl-item:first-child .tl-node{border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(240,112,58,.12)}
.tl-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:24px 26px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28)}
.tl-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.tl-date{font-size:13px;color:var(--c-ink-3);letter-spacing:.02em}
.tl-card h3{font-size:20px;line-height:1.5;margin-bottom:10px}
.tl-card p{font-size:15px;line-height:1.85;color:var(--c-ink-2)}
.tl-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tl-points span{
  font-size:13px;color:var(--c-ink-2);background:var(--c-band);
  border-radius:var(--r-pill);padding:5px 12px;line-height:1.5;
}

/* ---------- 条目核对说明 ---------- */
.check-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:start}
.check-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:28px;
}
.check-card h3{font-size:20px;margin-bottom:14px}
.check-card p{font-size:15px;color:var(--c-ink-2);line-height:1.85}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.check-list li{list-style:none;display:flex;gap:12px;font-size:15px;color:var(--c-ink-2);line-height:1.8}
.check-list i{color:var(--c-primary);font-size:14px;margin-top:7px}
.mini-stack{display:flex;flex-direction:column;gap:16px}
.mini-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:20px 22px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28)}
.mini-card h4{font-size:17px;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.mini-card i{color:var(--c-secondary)}
.mini-card p{font-size:14px;color:var(--c-ink-2);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item.open{border-color:rgba(22,104,168,.3);box-shadow:var(--sh2)}
.faq-q{
  position:relative;width:100%;min-height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 22px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-ink);cursor:pointer;
}
.faq-q::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--c-primary);opacity:0;transition:opacity .2s var(--ease);
}
.faq-item.open .faq-q::before{opacity:1}
.faq-icon{flex:0 0 auto;color:var(--c-primary);transition:transform .22s var(--ease)}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}

/* ---------- CTA ---------- */
.cta-box{
  background:linear-gradient(115deg,rgba(22,104,168,.06),rgba(56,163,176,.06)),var(--c-band);
  border:1px solid var(--c-line);border-radius:20px;
  padding:44px;position:relative;overflow:hidden;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:36px;align-items:center}
.cta-box h2{font-size:clamp(20px,2.6vw,28px);line-height:1.4}
.cta-box .cta-sub{margin-top:10px;font-size:15px;color:var(--c-ink-2)}
.subscribe-form{display:flex;gap:10px}
.subscribe-form input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:#fff;font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.subscribe-form input::placeholder{color:var(--c-ink-3)}
.subscribe-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,104,168,.2)}
.privacy-note{margin-top:12px;font-size:12px;color:var(--c-ink-3);line-height:1.7}
.form-msg{margin-top:10px;font-size:13px;color:var(--c-success);display:none}
.form-msg.show{display:block}
.form-msg.error{color:var(--c-error)}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.related-card{
  display:flex;align-items:center;gap:16px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:18px 20px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(22,104,168,.28)}
.related-thumb{width:64px;height:64px;border-radius:var(--r-img);overflow:hidden;flex:0 0 auto;background:var(--c-band)}
.related-thumb img{width:100%;height:100%;object-fit:cover}
.related-card h3{font-size:16px;margin-bottom:4px}
.related-card span{font-size:13px;color:var(--c-ink-3)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F1A24;color:#C7D3DE;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.site-footer .brand-mg{color:#8FC3EA}
.site-footer .brand-cn{color:#E7EEF5}
.site-footer .brand-sub{color:#7FB4DC;border-color:rgba(127,180,220,.38)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#8496A6;max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);color:#C7D3DE;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.footer-social a:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px)}
.footer-col h4{font-size:14px;color:#7FB4DC;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{
  display:inline-block;font-size:14px;color:#C7D3DE;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-col .muted{font-size:14px;line-height:1.9;color:#8496A6}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8496A6;
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom .links a{font-size:13px;color:#8496A6}
.footer-bottom .links a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .dock-toggle{display:inline-flex}
  .dock{gap:12px;padding:0 12px 0 18px}
  .dock-body{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:14px;
    background:#fff;border:1px solid var(--c-line);border-radius:18px;
    box-shadow:var(--sh3);padding:14px;
  }
  .dock-body.is-open{display:flex}
  .side-nav{flex-direction:column;align-items:stretch;gap:12px}
  .side-nav a{
    min-height:48px;justify-content:space-between;padding:0 8px;
    border-bottom:1px solid var(--c-line);font-size:15px;
  }
  .side-nav a:last-child{border-bottom:0}
  .side-nav a i{display:inline-block}
  .side-nav a.active::after{display:none}
  .dock-actions{width:100%;justify-content:flex-start;flex-wrap:wrap;padding:4px 8px 6px}
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:24px;padding:30px 0 34px}
  .hero-media img{height:220px}
  .cat-intro{grid-template-columns:minmax(0,1fr);gap:24px}
  .overview{grid-template-columns:repeat(2,minmax(0,1fr))}
  .overview-item:nth-child(2){border-right:0}
  .overview-item:nth-child(1),.overview-item:nth-child(2){border-bottom:1px solid var(--c-line)}
  .check-grid{grid-template-columns:minmax(0,1fr)}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:24px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:639px){
  body{padding-top:88px}
  .dock{height:56px}
  .dock.is-scrolled{height:54px}
  .brand-cn{font-size:15px}
  .brand-sub{display:none}
  .section{padding:52px 0}
  .cta-box{padding:28px}
  .overview{grid-template-columns:minmax(0,1fr)}
  .overview-item{border-right:0;border-bottom:1px solid var(--c-line)}
  .overview-item:last-child{border-bottom:0}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .tl-item{padding-left:32px}
  .timeline::before{left:7px}
  .tl-node{left:0}
  .tl-card{padding:20px}
  .subscribe-form{flex-direction:column}
  .subscribe-form .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}