/* roulang page: index */
:root{
  --c-primary:#10456B;
  --c-primary-700:#0B3151;
  --c-primary-50:#E7EFF5;
  --c-accent:#E2663A;
  --c-accent-soft:rgba(226,102,58,.12);
  --c-ok:#1F8A70;
  --c-danger:#C0392B;
  --c-text:#101C26;
  --c-text-2:#4A5A68;
  --c-text-3:#7C8B98;
  --c-bg:#F5F7F9;
  --c-card:#FFFFFF;
  --c-border:#E3E9EE;
  --c-footer:#0C2233;
  --c-footer-text:#B9C7D2;
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --shadow-sm:0 1px 2px rgba(16,28,38,.06);
  --shadow-card:0 8px 24px -12px rgba(16,69,107,.18);
  --shadow-hover:0 16px 34px -16px rgba(16,69,107,.30);
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  --sec-pad:52px;
}
@media (min-width:1024px){:root{--sec-pad:88px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-weight:400;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;background:#EDF1F4}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.num-tab{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1280px){.container{padding-left:32px;padding-right:32px}}

.section{padding:var(--sec-pad) 0}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-1{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 顶部浮动 Dock ---------- */
.dock-wrap{
  position:sticky;
  top:0;
  z-index:70;
  padding:16px 16px 0;
}
.dock{
  max-width:1120px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 12px 10px 18px;
  border:1px solid var(--c-border);
  border-radius:999px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);
  transition:background-color .2s ease,box-shadow .2s ease;
}
.dock.is-scrolled{background:rgba(255,255,255,.96);box-shadow:0 14px 32px -16px rgba(16,69,107,.36)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:16px;font-weight:700;color:var(--c-primary);letter-spacing:.01em;white-space:nowrap}
.dock-nav{display:none;align-items:center;gap:2px;margin-left:8px}
@media (min-width:1000px){.dock-nav{display:flex}}
.dock-link{
  position:relative;
  padding:9px 14px;
  border-radius:999px;
  font-size:15px;
  color:var(--c-text-2);
  transition:color .18s ease,background-color .18s ease;
}
.dock-link::after{
  content:"";position:absolute;left:50%;bottom:3px;width:16px;height:2px;border-radius:2px;
  background:var(--c-accent);transform:translateX(-50%) scaleX(0);transition:transform .2s ease;
}
.dock-link:hover{color:var(--c-primary);background:var(--c-primary-50)}
.dock-link:hover::after{transform:translateX(-50%) scaleX(1)}
.dock-link.is-active{color:var(--c-primary);background:var(--c-primary-50);font-weight:600}
.dock-actions{display:flex;align-items:center;gap:8px;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  color:var(--c-text-2);border:1px solid var(--c-border);background:#fff;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-50)}
.icon-btn svg{width:18px;height:18px}
.dock-cta{display:none}
@media (min-width:640px){.dock-cta{display:inline-flex}}
.search-panel{
  max-width:1120px;margin:10px auto 0;padding:14px 16px;
  background:#fff;border:1px solid var(--c-border);border-radius:20px;box-shadow:var(--shadow-card);
}
.search-panel .search-row{display:flex;gap:10px}
.search-panel input{
  flex:1 1 auto;height:46px;padding:0 14px;border-radius:var(--r-input);
  border:1px solid var(--c-border);background:#FBFCFD;
}
.search-panel input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(16,69,107,.12);outline:none}

.fab-menu{
  position:fixed;right:18px;bottom:18px;z-index:80;
  width:54px;height:54px;border-radius:999px;background:var(--c-primary);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  box-shadow:0 12px 26px -12px rgba(16,69,107,.5);
  transition:background-color .18s ease,transform .18s ease;
}
.fab-menu:hover{background:var(--c-primary-700);transform:translateY(-1px)}
.fab-menu span{display:block;width:20px;height:2px;border-radius:2px;background:#fff;transition:transform .2s ease,opacity .2s ease}
.fab-menu[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.fab-menu[aria-expanded="true"] span:nth-child(2){opacity:0}
.fab-menu[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media (min-width:1000px){.fab-menu{display:none}}
.mobile-menu{
  position:fixed;right:18px;bottom:84px;z-index:80;
  width:min(300px,calc(100vw - 36px));
  background:#fff;border:1px solid var(--c-border);border-radius:20px;
  box-shadow:var(--shadow-hover);padding:10px;
}
.mobile-menu a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;
  font-size:15px;color:var(--c-text-2);font-weight:500;
}
.mobile-menu a:hover,.mobile-menu a.is-active{background:var(--c-primary-50);color:var(--c-primary)}
.mobile-menu .btn{justify-content:center;margin-top:6px;color:#fff}
@media (min-width:1000px){.mobile-menu{display:none!important}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-card)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-50);border-color:var(--c-primary-700);color:var(--c-primary-700)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- Hero ---------- */
.hero{padding:44px 0 0}
@media (min-width:1024px){.hero{padding:64px 0 0}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:30px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.04fr .96fr;gap:52px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.04em;color:var(--c-primary);
  background:var(--c-primary-50);padding:6px 12px;border-radius:999px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:block}
.hero-title{
  font-size:clamp(30px,4vw,44px);
  font-weight:700;line-height:1.25;margin-top:16px;color:var(--c-text);
}
.hero-sub{margin-top:12px;font-size:17px;color:var(--c-text-2);max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-mini{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:22px;font-size:13px;color:var(--c-text-3)}
.hero-mini span{display:inline-flex;align-items:center;gap:7px}
.hero-mini i{width:5px;height:5px;border-radius:50%;background:var(--c-accent);display:block}
.hero-media{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  background:#EDF1F4;border:1px solid var(--c-border);
  aspect-ratio:16/11;box-shadow:var(--shadow-card);
}
@media (max-width:1023px){.hero-media{aspect-ratio:auto;height:220px}}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(104deg,rgba(255,255,255,.88) 0%,rgba(255,255,255,.22) 46%,rgba(255,255,255,0) 72%);
}
.hero-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:rgba(255,255,255,.94);border:1px solid var(--c-border);border-radius:14px;
  padding:10px 14px;font-size:13px;color:var(--c-text-2);box-shadow:var(--shadow-sm);
}
.hero-badge strong{display:block;font-size:15px;color:var(--c-primary);font-weight:700}

/* ---------- 指标看板 ---------- */
.metrics{padding:38px 0 0}
.metrics-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media (min-width:768px){.metrics-grid{grid-template-columns:repeat(4,1fr);gap:20px}}
.metric{
  position:relative;overflow:hidden;
  background:var(--c-card);border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:24px 22px 20px;box-shadow:var(--shadow-sm);
}
.metric::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-primary)}
.metric:nth-child(2)::before{background:var(--c-accent)}
.metric:nth-child(3)::before{background:var(--c-ok)}
.metric:nth-child(4)::before{background:var(--c-primary)}
.metric-num{font-size:clamp(20px,2.2vw,24px);font-weight:700;color:var(--c-primary);line-height:1.3}
.metric-label{margin-top:6px;font-size:13px;color:var(--c-text-3);letter-spacing:.03em}
.metric-ico{position:absolute;right:16px;top:18px;color:#C9D6E0}
.metric-ico svg{width:20px;height:20px}

/* ---------- 区块标题 ---------- */
.sec-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 14px;margin-bottom:28px}
.sec-title{font-size:clamp(24px,2.6vw,28px);font-weight:600;line-height:1.3;color:var(--c-text)}
.sec-tag{
  font-size:12px;letter-spacing:.04em;color:var(--c-accent);
  background:var(--c-accent-soft);padding:4px 11px;border-radius:999px;
}
.sec-more{margin-left:auto;font-size:14px;font-weight:600;color:var(--c-primary);border-bottom:1px solid transparent;padding-bottom:2px;transition:color .18s ease,border-color .18s ease}
.sec-more:hover{color:var(--c-accent);border-color:var(--c-accent)}
.sec-more span{display:inline-block;transition:transform .18s ease}
.sec-more:hover span{transform:translateX(3px)}
.sec-intro{max-width:62em;color:var(--c-text-2);font-size:15.5px;margin:-12px 0 30px}

/* ---------- 服务矩阵（异构） ---------- */
.matrix{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:768px){.matrix{grid-template-columns:repeat(2,1fr);gap:20px}}
@media (min-width:1024px){
  .matrix{grid-template-columns:repeat(12,1fr);gap:24px}
  .mx-lg{grid-column:span 7}
  .mx-sm{grid-column:span 5}
  .mx-md{grid-column:span 5}
  .mx-wide{grid-column:span 7}
}
.mx-card{
  position:relative;
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.mx-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFDCE6}
.mx-card.mx-feature{background:linear-gradient(180deg,#FFFFFF 0%,#F7FAFC 100%)}
.mx-num{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--c-accent)}
.mx-card h3{margin-top:12px;font-size:19px;font-weight:600;line-height:1.5;color:var(--c-text)}
.mx-card p{margin-top:10px;font-size:14.5px;color:var(--c-text-2);line-height:1.85}
.mx-list{margin-top:16px;display:grid;gap:8px}
.mx-list li{display:flex;gap:9px;font-size:14px;color:var(--c-text-2)}
.mx-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);margin-top:9px;flex:0 0 auto}
.mx-link{
  margin-top:auto;padding-top:20px;font-size:14px;font-weight:600;color:var(--c-primary);
  display:inline-flex;align-items:center;gap:6px;
}
.mx-link:hover{color:var(--c-accent)}
.mx-link span{transition:transform .18s ease}
.mx-link:hover span{transform:translateX(3px)}
.mx-wide{flex-direction:row;align-items:center;gap:24px}
.mx-wide .mx-body{flex:1 1 auto}
.mx-wide .mx-figure{flex:0 0 168px;border-radius:12px;overflow:hidden;border:1px solid var(--c-border);background:#EDF1F4;display:none}
@media (min-width:768px){.mx-wide .mx-figure{display:block}}
.mx-wide .mx-figure img{width:100%;height:112px;object-fit:cover}
@media (max-width:767px){.mx-wide{flex-direction:column;align-items:flex-start}}

/* ---------- 最新信息列表 ---------- */
.info-section{background:#FFFFFF;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.info-list{border-top:1px solid var(--c-border)}
.info-item{
  display:flex;gap:20px;align-items:stretch;
  padding:20px 4px;border-bottom:1px solid var(--c-border);
  transition:background-color .18s ease;
}
.info-item:hover{background:#F8FAFC}
.info-thumb{
  flex:0 0 180px;width:180px;border-radius:12px;overflow:hidden;
  border:1px solid var(--c-border);background:#EDF1F4;aspect-ratio:16/10;
}
@media (max-width:767px){.info-item{flex-direction:column;gap:14px}.info-thumb{flex:0 0 auto;width:100%;aspect-ratio:16/9}}
.info-thumb img{width:100%;height:100%;object-fit:cover}
.info-body{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}
.info-title{font-size:17px;font-weight:600;line-height:1.6;color:var(--c-text)}
.info-title a{color:inherit}
.info-title a:hover{color:var(--c-primary)}
.info-summary{margin-top:8px;font-size:14px;color:var(--c-text-2);line-height:1.85}
.info-meta{margin-top:auto;padding-top:14px;display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;font-size:12.5px;color:var(--c-text-3)}
.pill{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.03em;color:var(--c-accent);
  background:var(--c-accent-soft);padding:3px 10px;border-radius:999px;
}
.info-more{margin-left:auto;font-size:13px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:5px}
.info-more span{transition:transform .18s ease}
.info-item:hover .info-more span{transform:translateX(3px)}
.info-empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  text-align:center;padding:32px 20px;
}
.empty-icon{
  width:52px;height:52px;border-radius:50%;background:var(--c-primary-50);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.empty-icon svg{width:24px;height:24px}
.info-empty p{font-size:15px;color:var(--c-text-2)}

/* ---------- 结果对比 ---------- */
.compare{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.compare-head{
  display:grid;grid-template-columns:1fr;gap:0;background:#F8FAFC;
  border-bottom:1px solid var(--c-border);
}
@media (min-width:768px){.compare-head,.compare-row{grid-template-columns:1fr 1fr}}
.compare-head span{padding:14px 24px;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--c-text-3)}
.compare-head span:last-child{color:var(--c-primary)}
.compare-list{margin:0}
.compare-row{
  display:grid;grid-template-columns:1fr;
  border-bottom:1px solid var(--c-border);
}
.compare-row:last-child{border-bottom:0}
.compare-before,.compare-after{padding:16px 24px;font-size:14.5px;display:flex;gap:10px;align-items:flex-start}
.compare-before{color:var(--c-text-3)}
.compare-before::before{
  content:"";flex:0 0 auto;width:14px;height:2px;border-radius:2px;background:#C9D6E0;margin-top:13px;
}
.compare-after{color:var(--c-text);border-top:1px dashed var(--c-border)}
@media (min-width:768px){.compare-after{border-top:0;border-left:1px solid var(--c-border)}}
.tick{
  flex:0 0 auto;width:20px;height:20px;border-radius:50%;background:rgba(31,138,112,.12);
  color:var(--c-ok);display:flex;align-items:center;justify-content:center;margin-top:6px;
}
.tick svg{width:12px;height:12px}

/* ---------- FAQ ---------- */
.faq{max-width:800px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:14px;
  overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item[open]{border-color:#CFDCE6;box-shadow:var(--shadow-sm);position:relative}
.faq-item[open]::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--c-accent)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;gap:14px;
  padding:18px 22px;font-size:16px;font-weight:600;line-height:1.7;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-sign{
  margin-left:auto;flex:0 0 auto;width:22px;height:22px;position:relative;margin-top:4px;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-accent);border-radius:2px;
  transition:transform .2s ease;
}
.faq-sign::before{width:12px;height:2px;transform:translate(-50%,-50%)}
.faq-sign::after{width:2px;height:12px;transform:translate(-50%,-50%)}
.faq-item[open] .faq-sign::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-answer{padding:0 22px 20px 22px;font-size:14.5px;line-height:1.9;color:var(--c-text-2)}
.faq-answer p+p{margin-top:10px}

/* ---------- 转化表单 ---------- */
.contact{background:var(--c-primary-50);border-top:1px solid #D8E4EC;border-bottom:1px solid #D8E4EC}
.contact-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){.contact-grid{grid-template-columns:.86fr 1.14fr;gap:56px;align-items:start}}
.contact h2{font-size:clamp(24px,2.6vw,28px);font-weight:600;line-height:1.35}
.contact-lead{margin-top:14px;font-size:15.5px;color:var(--c-text-2)}
.contact-points{margin-top:24px;display:grid;gap:12px}
.contact-points li{display:flex;gap:10px;font-size:14.5px;color:var(--c-text-2)}
.contact-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);margin-top:11px;flex:0 0 auto}
.form-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--shadow-card);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:500;color:var(--c-text-2);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--c-border);border-radius:var(--r-input);
  background:#FBFCFD;padding:0 14px;height:46px;font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(16,69,107,.12);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:var(--c-danger);background:#FDF3F2;
}
.field-error{display:none;margin-top:6px;font-size:13px;color:var(--c-danger)}
.field.has-error .field-error{display:block}
.form-note{font-size:13px;color:var(--c-text-3);margin-top:12px}
.form-alert{
  display:none;margin-top:16px;padding:12px 14px;border-radius:var(--r-input);
  font-size:14px;background:rgba(31,138,112,.1);color:#166B57;border:1px solid rgba(31,138,112,.28);
}
.form-alert.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-footer);color:var(--c-footer-text);padding:56px 0 26px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1fr;gap:30px}
@media (min-width:640px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}}
.foot-brand .brand-text{color:#fff}
.foot-brand p{margin-top:14px;font-size:14px;line-height:1.9;color:var(--c-footer-text);max-width:30em}
.foot-col h3{font-size:14px;font-weight:600;color:#fff;letter-spacing:.04em;margin-bottom:14px}
.foot-col ul{display:grid;gap:10px}
.foot-col a{font-size:14px;color:var(--c-footer-text);border-bottom:1px solid transparent;padding-bottom:1px}
.foot-col a:hover{color:#fff;border-color:var(--c-accent)}
.foot-col li{font-size:14px;color:var(--c-footer-text)}
.foot-bottom{
  margin-top:38px;padding-top:18px;border-top:1px solid rgba(185,199,210,.2);
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
  font-size:13px;color:#8FA3B2;
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .mx-card:hover,.btn:hover{transform:none}
}

/* roulang page: article */
:root{
  --c-primary:#10456B;
  --c-primary-700:#0B3151;
  --c-primary-50:#E7EFF5;
  --c-accent:#E2663A;
  --c-accent-700:#C1502A;
  --c-ok:#1F8A70;
  --c-danger:#C0392B;
  --c-text:#101C26;
  --c-text-2:#4A5A68;
  --c-text-3:#7C8B98;
  --c-bg:#F5F7F9;
  --c-card:#FFFFFF;
  --c-border:#E3E9EE;
  --c-foot:#0C2233;
  --c-foot-text:#B9C7D2;
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --shadow-sm:0 1px 2px rgba(16,28,38,.06);
  --shadow-card:0 8px 24px -12px rgba(16,69,107,.18);
  --font-sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* 容器 */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 32px;}}

/* 浮动 Dock 导航 */
.dock-wrap{position:sticky;top:16px;z-index:60;padding:16px 20px 0;}
.dock{
  max-width:1120px;margin:0 auto;display:flex;align-items:center;gap:14px;
  padding:10px 12px 10px 16px;border-radius:999px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--c-border);box-shadow:var(--shadow-card);
  transition:background .2s ease,box-shadow .2s ease;
}
.dock.is-scrolled{background:rgba(255,255,255,.95);box-shadow:0 14px 34px -18px rgba(16,69,107,.36);}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none;}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);display:grid;place-items:center;flex-shrink:0;}
.brand-mark svg{width:20px;height:20px;display:block;}
.brand-text{font-size:15px;font-weight:600;color:var(--c-text);letter-spacing:.01em;white-space:nowrap;}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:6px;}
.dock-link{
  position:relative;display:inline-block;padding:8px 12px;border-radius:999px;
  font-size:14px;color:var(--c-text-2);text-decoration:none;white-space:nowrap;
  transition:color .15s ease,background .15s ease;
}
.dock-link::after{
  content:"";position:absolute;left:50%;bottom:3px;width:0;height:2px;border-radius:2px;
  background:var(--c-accent);transform:translateX(-50%);transition:width .2s ease;
}
.dock-link:hover{color:var(--c-primary);}
.dock-link:hover::after{width:18px;}
.dock-link.is-active{background:var(--c-primary-50);color:var(--c-primary);font-weight:600;}
.dock-actions{margin-left:auto;display:flex;align-items:center;gap:8px;}
.icon-btn{
  width:38px;height:38px;border-radius:999px;border:1px solid var(--c-border);background:#fff;
  color:var(--c-text-2);display:grid;place-items:center;cursor:pointer;
  transition:color .15s ease,border-color .15s ease,background .15s ease;
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{color:var(--c-primary);border-color:#C7D6E1;background:var(--c-primary-50);}
.search-panel{
  max-width:1120px;margin:10px auto 0;padding:12px;border-radius:20px;
  background:rgba(255,255,255,.95);border:1px solid var(--c-border);box-shadow:var(--shadow-card);
}
.search-row{display:flex;gap:10px;align-items:center;}
.search-row input{
  flex:1;height:46px;padding:0 14px;border-radius:var(--r-input);border:1px solid var(--c-border);
  background:#fff;color:var(--c-text);font-size:15px;font-family:inherit;transition:border-color .15s ease,box-shadow .15s ease;
}
.search-row input::placeholder{color:var(--c-text-3);}
.search-row input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(16,69,107,.12);}
.search-row .btn{flex-shrink:0;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;
  border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;
  text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:background .16s ease,color .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-card);}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-50);border-color:var(--c-primary-700);color:var(--c-primary-700);}
.btn-light{background:#fff;color:var(--c-primary);}
.btn-light:hover{background:#EDF3F8;color:var(--c-primary-700);transform:translateY(-1px);}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}

/* 面包屑 */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--c-text-3);}
.breadcrumb a{color:var(--c-text-3);}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:#B7C3CD;}
.breadcrumb .current{color:var(--c-text-2);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* 文章头部 */
.article-hero{position:relative;padding:34px 0 30px;background:#fff;border-bottom:1px solid var(--c-border);overflow:hidden;}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
  opacity:.10;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.70) 0%,#ffffff 88%);
}
.article-hero > .container{position:relative;z-index:1;}
.article-title{
  font-size:clamp(26px,3.4vw,38px);line-height:1.32;font-weight:700;letter-spacing:-.01em;
  color:var(--c-text);margin:16px 0 16px;max-width:860px;
}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--c-text-3);}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#C7D3DC;display:inline-block;}
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  background:rgba(226,102,58,.12);color:var(--c-accent-700);
}

/* 正文布局 */
.article-body{padding:44px 0 0;}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 296px;gap:48px;align-items:start;}
.article-main{min-width:0;}

/* 正文排版 */
.prose-zh{max-width:800px;font-size:16px;line-height:1.9;color:var(--c-text);}
.prose-zh > *:first-child{margin-top:0;}
.prose-zh p{margin:0 0 1.1em;}
.prose-zh h2{
  position:relative;font-size:clamp(20px,2.2vw,24px);font-weight:600;line-height:1.45;
  color:var(--c-text);margin:2em 0 .8em;padding-left:14px;
}
.prose-zh h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--c-primary);
}
.prose-zh h3{font-size:18px;font-weight:600;line-height:1.6;color:var(--c-text);margin:1.6em 0 .6em;}
.prose-zh h4{font-size:16px;font-weight:600;margin:1.4em 0 .5em;}
.prose-zh ul,.prose-zh ol{padding-left:1.4em;margin:0 0 1.1em;}
.prose-zh ul{list-style:disc;}
.prose-zh ol{list-style:decimal;}
.prose-zh li{margin:.35em 0;}
.prose-zh ul li::marker{color:var(--c-accent);}
.prose-zh ol li::marker{color:var(--c-accent);font-weight:600;}
.prose-zh blockquote{
  margin:1.4em 0;padding:14px 18px;border-left:3px solid var(--c-primary);
  background:var(--c-primary-50);border-radius:0 12px 12px 0;color:var(--c-text-2);
}
.prose-zh blockquote p:last-child{margin-bottom:0;}
.prose-zh img{width:100%;border-radius:14px;margin:1.4em 0;background:#EEF2F5;object-fit:cover;}
.prose-zh a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;transition:color .15s ease;}
.prose-zh a:hover{color:var(--c-accent);}
.prose-zh code{background:#F1F5F8;border-radius:6px;padding:2px 6px;font-size:14px;}
.prose-zh pre{
  margin:1.4em 0;padding:16px;border-radius:12px;background:#0F2735;color:#DCE7EE;
  overflow-x:auto;font-size:13.5px;line-height:1.7;
}
.prose-zh table{width:100%;border-collapse:collapse;font-size:14.5px;}
.prose-zh th,.prose-zh td{border-bottom:1px solid var(--c-border);padding:10px 14px;text-align:left;vertical-align:top;}
.prose-zh th{background:#F7FAFC;font-weight:600;color:var(--c-text-2);white-space:nowrap;}
.prose-zh hr{border:0;border-top:1px solid var(--c-border);margin:2em 0;}
.table-scroll{margin:1.4em 0;border:1px solid var(--c-border);border-radius:12px;overflow-x:auto;background:#fff;}
.table-scroll table{min-width:520px;}

/* 目录 */
.toc{
  position:sticky;top:96px;padding:20px;border-radius:var(--r-card);
  background:#fff;border:1px solid var(--c-border);box-shadow:var(--shadow-sm);
}
.toc-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-text-3);margin-bottom:12px;}
.toc-list{list-style:none;padding:0;margin:0;display:grid;gap:2px;max-height:60vh;overflow-y:auto;}
.toc-list a{
  display:block;padding:7px 10px;font-size:14px;line-height:1.55;color:var(--c-text-2);
  border-left:2px solid transparent;border-radius:0 8px 8px 0;
  transition:color .15s ease,background .15s ease,border-color .15s ease;
}
.toc-list a:hover{color:var(--c-primary);background:var(--c-primary-50);}
.toc-list a.is-current{color:var(--c-primary);font-weight:600;background:var(--c-primary-50);border-left-color:var(--c-accent);}
.toc-list .lvl-3 a{padding-left:22px;font-size:13.5px;}

/* 空态 */
.empty-state{
  min-height:280px;padding:48px 28px;border-radius:var(--r-card);background:#fff;
  border:1px solid var(--c-border);display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;text-align:center;
}
.empty-icon{width:56px;height:56px;border-radius:50%;background:var(--c-primary-50);color:var(--c-primary);display:grid;place-items:center;}
.empty-icon svg{width:26px;height:26px;}
.empty-state h2{font-size:20px;font-weight:600;color:var(--c-text);}
.empty-state p{font-size:15px;color:var(--c-text-2);max-width:420px;}

/* 横向 CTA */
.cta-band{
  margin-top:52px;padding:28px 30px;border-radius:var(--r-card);background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band h2{font-size:20px;font-weight:600;line-height:1.5;color:#fff;}
.cta-band p{margin-top:8px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);max-width:560px;}

/* 相关推荐 */
.rel-section{margin-top:64px;}
.section-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:22px;}
.section-head h2{font-size:clamp(20px,2.4vw,24px);font-weight:600;color:var(--c-text);}
.side-note{font-size:12.5px;letter-spacing:.06em;color:var(--c-text-3);}
.rel-mix{display:grid;grid-template-columns:1.12fr .88fr;gap:20px;}
.rel-card{
  display:flex;flex-direction:column;background:var(--c-card);border:1px solid var(--c-border);
  border-radius:var(--r-card);overflow:hidden;text-decoration:none;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rel-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#EEF2F5;}
.rel-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:#CFDCE5;}
.rel-card h3{font-size:17px;font-weight:600;line-height:1.55;color:var(--c-text);}
.rel-card p{font-size:14px;line-height:1.75;color:var(--c-text-2);}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:rgba(226,102,58,.12);color:var(--c-accent-700);align-self:flex-start;
}
.tag-plain{background:#EEF3F7;color:var(--c-text-2);}
.arrow-line{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--c-primary);}
.arrow{display:inline-block;transition:transform .18s ease;}
.rel-card:hover .arrow,.rel-line:hover .arrow{transform:translateX(2px);}
.rel-lines{list-style:none;margin:22px 0 0;padding:0;border-top:1px solid var(--c-border);}
.rel-line{
  display:flex;align-items:center;gap:14px;padding:15px 6px;border-bottom:1px solid var(--c-border);
  text-decoration:none;transition:background .15s ease;
}
.rel-line:hover{background:#F8FAFC;}
.rel-line .idx{font-size:13.5px;font-weight:600;color:var(--c-accent);font-variant-numeric:tabular-nums;min-width:26px;}
.rel-line .rel-line-text{flex:1;min-width:0;font-size:15px;font-weight:600;color:var(--c-text);line-height:1.6;}
.rel-line:hover .rel-line-text{color:var(--c-primary);}

/* 返回栏目 */
.back-bar{
  margin-top:40px;padding:20px 24px;border-radius:var(--r-card);background:#fff;
  border:1px dashed #D2DEE7;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.back-label{font-size:12.5px;letter-spacing:.06em;color:var(--c-text-3);margin-bottom:4px;}
.back-title{font-size:18px;font-weight:600;}
.back-title a{color:var(--c-primary);}
.back-title a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:4px;}

/* 页脚 */
.site-footer{background:var(--c-foot);color:var(--c-foot-text);margin-top:80px;padding:56px 0 24px;font-size:14px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.foot-brand .brand-text{color:#fff;}
.foot-brand .brand-mark{background:#17415F;}
.foot-brand p{margin-top:14px;font-size:14px;line-height:1.85;color:var(--c-foot-text);max-width:330px;}
.foot-col h3{font-size:14px;font-weight:600;color:#fff;letter-spacing:.04em;margin-bottom:14px;}
.foot-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.foot-col li{font-size:14px;line-height:1.7;color:var(--c-foot-text);}
.foot-col a{color:var(--c-foot-text);}
.foot-col a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:3px;}
.foot-bottom{
  margin-top:40px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8FA3B2;
}

/* 入场动效 */
.fade-up{animation:fadeUp .5s ease-out both;}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:translateY(0);}}

/* 响应式 */
@media (max-width:1023px){
  .article-grid{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc{display:none;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .rel-mix{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .dock-wrap{padding:12px 16px 0;}
  .dock{border-radius:20px;flex-wrap:wrap;row-gap:6px;padding:12px 14px;}
  .dock-nav{order:3;width:100%;margin-left:0;overflow-x:auto;padding-bottom:2px;-webkit-overflow-scrolling:touch;}
  .dock-nav::-webkit-scrollbar{display:none;}
  .dock-link{padding:8px 10px;font-size:13.5px;}
  .brand-text{font-size:14px;}
  .dock-cta{height:36px;padding:0 14px;font-size:13.5px;}
  .article-hero{padding:26px 0 24px;}
  .article-body{padding:32px 0 0;}
  .cta-band{padding:22px 20px;gap:16px;}
  .cta-band .btn{width:100%;}
  .rel-mix{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;gap:26px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .breadcrumb .current{max-width:100%;}
  .rel-line{flex-wrap:wrap;gap:10px;}
  .rel-line .rel-line-text{flex:1 1 100%;order:2;}
  .rel-line .tag-plain{order:3;}
  .rel-line .arrow{order:4;margin-left:auto;}
}
@media (max-width:520px){
  .search-row{flex-direction:column;align-items:stretch;}
  .search-row .btn{width:100%;}
  .article-title{font-size:24px;}
  .prose-zh{font-size:15.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
    --c-primary:#10456B;
    --c-primary-700:#0B3151;
    --c-primary-50:#E7EFF5;
    --c-accent:#E2663A;
    --c-accent-soft:rgba(226,102,58,.12);
    --c-ok:#1F8A70;
    --c-danger:#C0392B;
    --c-text:#101C26;
    --c-text-2:#4A5A68;
    --c-text-3:#7C8B98;
    --c-page:#F5F7F9;
    --c-card:#FFFFFF;
    --c-line:#E3E9EE;
    --c-line-strong:#CBD7E1;
    --c-foot:#0C2233;
    --c-foot-text:#B9C7D2;
    --r-card:16px;
    --r-btn:12px;
    --r-input:10px;
    --shadow-sm:0 1px 2px rgba(16,28,38,.06);
    --shadow-card:0 8px 24px -12px rgba(16,69,107,.18);
    --font-zh:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:var(--font-zh);
    font-size:16px;
    line-height:1.85;
    color:var(--c-text);
    background:var(--c-page);
    font-weight:400;
  }
  img{max-width:100%;display:block;background:#EEF2F5;}
  a{color:var(--c-primary);text-decoration:none;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding-left:1.15em;}
  button{font-family:inherit;font-size:inherit;cursor:pointer;}
  input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
  :focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
  .num-tab{font-variant-numeric:tabular-nums;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:768px){.container{padding-left:24px;padding-right:24px;}}
  @media (min-width:1280px){.container{padding-left:32px;padding-right:32px;}}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--r-btn);border:1px solid transparent;
    padding:11px 20px;font-size:15px;font-weight:600;line-height:1.2;
    transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
    text-align:center;
  }
  .btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-sm);}
  .btn-primary:hover{background:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--shadow-card);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-line-strong);}
  .btn-ghost:hover{background:var(--c-primary-50);border-color:var(--c-primary);}
  .btn-sm{padding:9px 16px;font-size:14px;}
  .btn-block{width:100%;}
  .btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}

  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);
    position:relative;
  }
  .link-arrow::after{
    content:"";position:absolute;left:0;right:14px;bottom:-3px;height:2px;background:var(--c-accent);
    transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
  }
  .link-arrow:hover{color:var(--c-accent);}
  .link-arrow:hover::after{transform:scaleX(1);}
  .link-arrow svg{width:14px;height:14px;transition:transform .18s ease;}
  .link-arrow:hover svg{transform:translateX(2px);}

  .tag{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 11px;border-radius:999px;
    background:var(--c-accent-soft);color:#B84A22;
    font-size:12px;font-weight:600;letter-spacing:.04em;
  }
  .tag-blue{background:var(--c-primary-50);color:var(--c-primary);}

  /* ---------- 浮动 Dock 导航 ---------- */
  .dock-wrap{position:sticky;top:16px;z-index:60;padding:0 16px;margin-bottom:8px;}
  .dock{
    max-width:1120px;margin:0 auto;
    display:flex;align-items:center;gap:18px;
    padding:10px 14px 10px 18px;
    border-radius:999px;
    background:rgba(255,255,255,.82);
    border:1px solid var(--c-line);
    box-shadow:var(--shadow-sm);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    transition:background-color .25s ease,box-shadow .25s ease;
  }
  .dock.is-scrolled{background:rgba(255,255,255,.95);box-shadow:var(--shadow-card);}
  .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{
    width:34px;height:34px;border-radius:11px;background:var(--c-primary);
    display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  }
  .brand-mark svg{width:22px;height:22px;}
  .brand-text{font-size:16px;font-weight:700;color:var(--c-primary);letter-spacing:.01em;white-space:nowrap;}
  .dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
  .dock-link{
    position:relative;display:inline-flex;align-items:center;
    padding:8px 14px;border-radius:999px;font-size:15px;color:var(--c-text-2);font-weight:500;
    transition:color .18s ease,background-color .18s ease;
  }
  .dock-link:hover{color:var(--c-primary);}
  .dock-link:hover::after{
    content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--c-accent);
  }
  .dock-link.is-active{background:var(--c-primary-50);color:var(--c-primary);font-weight:600;}
  .dock-link.is-active::after{display:none;}
  .dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .icon-btn{
    width:38px;height:38px;border-radius:999px;border:1px solid var(--c-line);
    background:#fff;color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;
    transition:background-color .18s ease,border-color .18s ease,transform .18s ease;
  }
  .icon-btn svg{width:18px;height:18px;}
  .icon-btn:hover{background:var(--c-primary-50);border-color:var(--c-line-strong);}
  .search-panel{
    max-width:1120px;margin:10px auto 0;
    background:#fff;border:1px solid var(--c-line);border-radius:20px;
    box-shadow:var(--shadow-card);padding:14px;
  }
  .search-row{display:flex;gap:10px;}
  .search-row input{
    flex:1;height:46px;border-radius:var(--r-input);border:1px solid var(--c-line);
    padding:0 14px;background:#FAFCFD;transition:border-color .18s ease,box-shadow .18s ease;
  }
  .search-row input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(16,69,107,.16);}
  @media (max-width:900px){
    .dock{flex-wrap:wrap;border-radius:20px;padding:12px 14px;gap:12px;}
    .dock-nav{order:3;width:100%;margin-left:0;overflow-x:auto;justify-content:flex-start;padding-bottom:2px;}
    .dock-nav::-webkit-scrollbar{height:0;}
    .dock-link{white-space:nowrap;}
    .dock-actions{margin-left:auto;}
  }
  @media (max-width:520px){
    .brand-text{font-size:15px;}
    .dock-cta{display:none;}
  }

  /* ---------- 面包屑 ---------- */
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--c-text-3);padding-top:22px;
  }
  .breadcrumb a{color:var(--c-text-3);}
  .breadcrumb a:hover{color:var(--c-primary);}
  .breadcrumb .sep{color:var(--c-line-strong);}
  .breadcrumb .current{color:var(--c-text-2);font-weight:500;}

  /* ---------- 分类 Hero ---------- */
  .cat-hero{padding:26px 0 8px;}
  .cat-hero-grid{display:grid;gap:28px;align-items:center;}
  @media (min-width:1024px){.cat-hero-grid{grid-template-columns:1.08fr .92fr;gap:44px;}}
  .cat-hero h1{
    font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;color:var(--c-text);
    letter-spacing:-.01em;margin-top:14px;
  }
  .cat-hero .lead{margin-top:14px;font-size:17px;color:var(--c-text-2);line-height:1.8;max-width:560px;}
  .hero-meta{
    margin-top:22px;display:flex;flex-wrap:wrap;gap:10px 22px;
    font-size:13px;color:var(--c-text-3);
  }
  .hero-meta span{display:inline-flex;align-items:center;gap:7px;}
  .hero-meta i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block;}
  .hero-figure{
    position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);
    box-shadow:var(--shadow-card);background:#EEF2F5;
  }
  .hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
  .hero-figure::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(255,255,255,0) 42%,rgba(255,255,255,.72) 100%);
    pointer-events:none;
  }
  .hero-figure figcaption{
    position:absolute;left:18px;bottom:16px;right:18px;z-index:2;
    font-size:13px;color:var(--c-primary);font-weight:600;
  }

  /* ---------- 通用板块 ---------- */
  section{padding:56px 0;}
  @media (min-width:1024px){section{padding:80px 0;}}
  .sec-head{
    display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;
    margin-bottom:28px;
  }
  .sec-head h2{
    font-size:clamp(24px,2.6vw,28px);font-weight:600;line-height:1.35;letter-spacing:-.01em;
  }
  .sec-head .side{
    font-size:13px;color:var(--c-text-3);letter-spacing:.04em;
    display:inline-flex;align-items:center;gap:8px;
  }
  .sec-head .side::before{
    content:"";width:18px;height:2px;border-radius:2px;background:var(--c-accent);
  }

  /* ---------- 简介段落 ---------- */
  .intro-grid{display:grid;gap:26px;}
  @media (min-width:1024px){.intro-grid{grid-template-columns:1.4fr 1fr;gap:52px;}}
  .intro-copy p{font-size:16.5px;color:var(--c-text-2);line-height:1.9;+margin-bottom:1em;}
  .intro-copy p + p{margin-top:16px;}
  .intro-copy strong{color:var(--c-text);font-weight:600;}
  .intro-aside{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    box-shadow:var(--shadow-sm);padding:24px 26px;
  }
  .intro-aside h3{font-size:17px;font-weight:600;margin-bottom:14px;}
  .intro-aside ul{list-style:none;padding:0;display:grid;gap:12px;}
  .intro-aside li{
    display:flex;gap:10px;font-size:14.5px;color:var(--c-text-2);line-height:1.75;
    padding-bottom:12px;border-bottom:1px dashed var(--c-line);
  }
  .intro-aside li:last-child{border-bottom:0;padding-bottom:0;}
  .intro-aside li::before{
    content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent);flex:0 0 auto;margin-top:9px;
  }

  /* ---------- 时间轴（分类页1 主体） ---------- */
  .timeline{position:relative;margin-top:6px;}
  .tl-item{position:relative;padding-left:72px;padding-bottom:26px;}
  .tl-item:last-child{padding-bottom:0;}
  .tl-item::before{
    content:"";position:absolute;left:23px;top:52px;bottom:-6px;width:2px;
    background:linear-gradient(180deg,var(--c-line-strong),rgba(203,215,225,.25));
  }
  .tl-item:last-child::before{display:none;}
  .tl-dot{
    position:absolute;left:0;top:0;width:48px;height:48px;border-radius:14px;
    background:var(--c-primary-50);border:1px solid #D3E2EE;color:var(--c-primary);
    display:flex;align-items:center;justify-content:center;
    font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;
    transition:background-color .18s ease,color .18s ease;
  }
  .tl-card{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:22px 24px;box-shadow:var(--shadow-sm);
    transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  }
  .tl-item:hover .tl-card{box-shadow:var(--shadow-card);transform:translateY(-2px);border-color:#D8E4EC;}
  .tl-item:hover .tl-dot{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
  .tl-card h3{font-size:19px;font-weight:600;line-height:1.5;}
  .tl-card > p{margin-top:8px;font-size:15px;color:var(--c-text-2);line-height:1.85;}
  .tl-points{
    list-style:none;padding:0;margin-top:14px;display:grid;gap:8px;
  }
  .tl-points li{
    position:relative;padding-left:16px;font-size:14px;color:var(--c-text-3);line-height:1.75;
  }
  .tl-points li::before{
    content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--c-accent);
  }
  @media (max-width:520px){
    .tl-item{padding-left:0;padding-bottom:20px;}
    .tl-item::before{display:none;}
    .tl-dot{position:static;margin-bottom:12px;}
  }

  /* ---------- 提示带 ---------- */
  .notice-band{
    display:grid;gap:18px;align-items:center;
    background:var(--c-primary-50);border:1px solid #D3E2EE;border-radius:var(--r-card);
    padding:24px 26px;
  }
  @media (min-width:900px){.notice-band{grid-template-columns:auto 1fr auto;gap:26px;}}
  .notice-icon{
    width:44px;height:44px;border-radius:12px;background:#fff;color:var(--c-accent);
    display:flex;align-items:center;justify-content:center;border:1px solid #D3E2EE;
  }
  .notice-icon svg{width:22px;height:22px;}
  .notice-band h3{font-size:17px;font-weight:600;color:var(--c-primary);}
  .notice-band p{font-size:14.5px;color:var(--c-text-2);line-height:1.8;margin-top:4px;}

  /* ---------- 页内横向 CTA ---------- */
  .cta-band{
    background:var(--c-primary);border-radius:var(--r-card);color:#fff;
    padding:32px 28px;display:grid;gap:20px;
    box-shadow:var(--shadow-card);
  }
  @media (min-width:900px){
    .cta-band{grid-template-columns:1fr auto;align-items:center;gap:36px;padding:40px 44px;}
  }
  .cta-band h2{font-size:clamp(21px,2.4vw,26px);font-weight:600;line-height:1.4;color:#fff;}
  .cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.82);line-height:1.8;max-width:640px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
  .cta-band .btn-primary{background:#fff;color:var(--c-primary);}
  .cta-band .btn-primary:hover{background:#EAF1F6;color:var(--c-primary-700);}
  .cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.45);}
  .cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;}

  /* ---------- 相关入口 ---------- */
  .related-grid{display:grid;gap:20px;}
  @media (min-width:900px){.related-grid{grid-template-columns:1.15fr .85fr;gap:26px;}}
  .related-feature{
    position:relative;display:block;border-radius:var(--r-card);overflow:hidden;
    border:1px solid var(--c-line);background:#fff;box-shadow:var(--shadow-sm);
    transition:box-shadow .2s ease,transform .2s ease;
  }
  .related-feature:hover{box-shadow:var(--shadow-card);transform:translateY(-2px);}
  .related-feature img{width:100%;aspect-ratio:16/9;object-fit:cover;}
  .related-feature .rf-body{padding:20px 24px 24px;}
  .related-feature h3{font-size:19px;font-weight:600;color:var(--c-text);}
  .related-feature p{margin-top:8px;font-size:14.5px;color:var(--c-text-2);line-height:1.8;}
  .related-list{display:grid;gap:0;align-content:start;}
  .related-row{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 6px;border-bottom:1px solid var(--c-line);
    transition:background-color .18s ease,padding-left .18s ease;
  }
  .related-row:first-child{border-top:1px solid var(--c-line);}
  .related-row:hover{background:#F8FAFC;padding-left:12px;}
  .related-row strong{display:block;font-size:16.5px;font-weight:600;color:var(--c-text);}
  .related-row em{display:block;font-style:normal;font-size:13.5px;color:var(--c-text-3);margin-top:3px;line-height:1.7;}
  .related-row svg{width:16px;height:16px;color:var(--c-primary);flex:0 0 auto;transition:transform .18s ease;}
  .related-row:hover svg{transform:translateX(2px);}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--c-foot);color:var(--c-foot-text);margin-top:24px;padding:56px 0 26px;}
  .foot-grid{display:grid;gap:34px;}
  @media (min-width:640px){.foot-grid{grid-template-columns:1fr 1fr;}}
  @media (min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}}
  .site-footer .brand-text{color:#fff;}
  .site-footer .brand-mark{background:rgba(255,255,255,.12);}
  .foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--c-foot-text);max-width:320px;}
  .foot-col h3{font-size:14px;font-weight:600;color:#fff;letter-spacing:.04em;margin-bottom:16px;}
  .foot-col ul{list-style:none;padding:0;display:grid;gap:11px;}
  .foot-col li{font-size:14px;color:var(--c-foot-text);line-height:1.7;}
  .foot-col a{
    font-size:14px;color:var(--c-foot-text);position:relative;
    transition:color .18s ease;
  }
  .foot-col a:hover{color:#fff;}
  .foot-col a:hover::after{
    content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:var(--c-accent);
  }
  .foot-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
    font-size:13px;color:rgba(185,199,210,.85);line-height:1.6;
  }

  @media (prefers-reduced-motion:reduce){
    *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  }

/* roulang page: category2 */
:root{
  --c-primary:#10456B;
  --c-primary-700:#0B3151;
  --c-primary-50:#E7EFF5;
  --c-accent:#E2663A;
  --c-ok:#1F8A70;
  --c-danger:#C0392B;
  --c-text:#101C26;
  --c-text-2:#4A5A68;
  --c-text-3:#7C8B98;
  --c-bg:#F5F7F9;
  --c-card:#FFFFFF;
  --c-border:#E3E9EE;
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --shadow-sm:0 1px 2px rgba(16,28,38,.06);
  --shadow-card:0 8px 24px -12px rgba(16,69,107,.18);
  --font-zh:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-zh);font-size:16px;line-height:1.85;
  color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:#EEF2F5;border-style:none}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.35}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- 浮动 Dock 导航 ---------- */
.dock-wrap{position:sticky;top:16px;z-index:60;padding:0 20px}
.dock{
  max-width:1120px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:8px 14px;border-radius:999px;border:1px solid var(--c-border);
  background:rgba(255,255,255,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);transition:background .2s ease-out,box-shadow .2s ease-out;
}
.dock-wrap.is-scrolled .dock{background:rgba(255,255,255,.96);box-shadow:0 12px 30px -14px rgba(16,69,107,.32)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);font-weight:700;font-size:15px;letter-spacing:.01em}
.brand:hover{color:var(--c-primary)}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-text{white-space:nowrap}
.dock-nav{display:flex;align-items:center;gap:2px}
.dock-link{position:relative;padding:8px 14px;border-radius:999px;font-size:14px;color:var(--c-text-2);white-space:nowrap;transition:color .18s ease-out,background .18s ease-out}
.dock-link:hover{color:var(--c-primary);background:#F2F6F9}
.dock-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:center;transition:transform .2s ease-out;
}
.dock-link:hover::after{transform:scaleX(1)}
.dock-link.is-active{background:var(--c-primary-50);color:var(--c-primary);font-weight:600}
.dock-link.is-active::after{display:none}
.dock-actions{display:flex;align-items:center;gap:8px}
.icon-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--c-border);background:#fff;
  color:var(--c-text-2);display:inline-flex;align-items:center;justify-content:center;
  transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-50)}
.search-panel{max-width:1120px;margin:10px auto 0}
.search-panel[hidden]{display:none}
.search-row{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--c-border);border-radius:999px;padding:8px 8px 8px 18px;box-shadow:var(--shadow-sm)}
.search-row input{flex:1;min-width:0;border:0;outline:none;background:transparent;font-size:15px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.4;white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-card)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-700);border-color:var(--c-primary-700)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}

/* ---------- 面包屑 ---------- */
.crumbs{font-size:13px;color:var(--c-text-3);display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.crumbs a{color:var(--c-text-3)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:#C3CDD6}
.crumbs .current{color:var(--c-text-2)}

/* ---------- Hero ---------- */
.hero{padding:40px 0 28px}
.hero-grid{display:grid;gap:28px;align-items:center}
@media(min-width:1024px){
  .hero{padding:56px 0 36px}
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:52px}
}
.hero h1{font-size:clamp(30px,4vw,44px);font-weight:700;line-height:1.25;margin:14px 0 12px;letter-spacing:-.01em}
.hero-lead{font-size:16px;line-height:1.85;color:var(--c-text-2);max-width:540px;margin:0 0 24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;background:#EEF2F5}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(255,255,255,.34),rgba(255,255,255,0) 60%)}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;letter-spacing:.04em;color:var(--c-text-2);background:#fff;border:1px solid var(--c-border);border-radius:999px;padding:6px 12px}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block}

/* ---------- 通用板块 ---------- */
.section{padding:48px 0}
@media(min-width:1024px){.section{padding:84px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;justify-content:space-between;margin-bottom:26px}
.section-head h2{font-size:clamp(24px,2.6vw,28px);font-weight:600}
.head-left{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px}
.section-tag{font-size:12px;letter-spacing:.06em;font-weight:600;color:var(--c-accent);background:rgba(226,102,58,.12);border-radius:999px;padding:4px 10px}
.head-more{font-size:14px;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.head-more:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:4px}
.head-more span{transition:transform .2s ease-out}
.head-more:hover span{transform:translateX(2px)}

/* ---------- 说明区 ---------- */
.intro-grid{display:grid;gap:28px}
@media(min-width:1024px){.intro-grid{grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}}
.intro-text p{font-size:16px;line-height:1.95;color:var(--c-text-2);margin-bottom:16px}
.intro-text p strong{color:var(--c-text);font-weight:600}
.key-list{background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-sm)}
.key-list h3{font-size:16px;font-weight:600;margin-bottom:14px}
.key-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--c-border);font-size:14.5px;color:var(--c-text-2);line-height:1.75}
.key-list li:last-child{border-bottom:0;padding-bottom:0}
.key-num{font-variant-numeric:tabular-nums;font-weight:700;color:var(--c-primary);flex:0 0 auto;font-size:14px;padding-top:1px}

/* ---------- 行式清单（本页主体） ---------- */
.row-list{border-top:1px solid var(--c-border)}
.row-item{
  display:grid;grid-template-columns:56px 1fr;gap:6px 14px;
  grid-template-areas:"thumb title" "thumb desc";
  padding:20px 10px;border-bottom:1px solid var(--c-border);
  transition:background .18s ease-out;
}
.row-item:hover{background:#F8FAFC}
@media(min-width:768px){
  .row-item{
    grid-template-columns:72px 280px 1fr;gap:28px;align-items:start;
    grid-template-areas:"thumb title desc";
    padding:24px 16px;
  }
}
.row-thumb{grid-area:thumb;width:56px;height:56px;border-radius:12px;object-fit:cover;aspect-ratio:1/1}
@media(min-width:768px){.row-thumb{width:72px;height:72px}}
.row-title{grid-area:title;font-size:18px;font-weight:600;color:var(--c-text);line-height:1.5;align-self:center}
@media(min-width:768px){.row-title{align-self:start;padding-top:6px}}
.row-desc{grid-area:desc;font-size:14px;line-height:1.9;color:var(--c-text-2);align-self:start}
.row-desc em{font-style:normal;color:var(--c-accent);font-weight:600}

/* ---------- 深色习惯区 ---------- */
.dark-band{background:var(--c-primary);color:#fff;padding:56px 0}
@media(min-width:1024px){.dark-band{padding:80px 0}}
.dark-grid{display:grid;gap:28px}
@media(min-width:1024px){.dark-grid{grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}}
.dark-band h2{font-size:clamp(24px,2.6vw,28px);color:#fff}
.dark-band .dark-lead{font-size:15px;line-height:1.95;color:#C7D6E2;margin-top:14px;max-width:420px}
.habit-grid{display:grid;gap:20px}
@media(min-width:640px){.habit-grid{grid-template-columns:1fr 1fr;gap:24px 32px}}
.habit{padding-left:16px;border-left:3px solid rgba(255,255,255,.26)}
.habit h3{font-size:16px;color:#fff;margin-bottom:6px}
.habit p{font-size:14px;line-height:1.85;color:#C7D6E2}

/* ---------- 页内横向 CTA ---------- */
.cta-band{
  background:var(--c-primary-50);border:1px solid #D5E2EC;border-radius:var(--r-card);
  padding:28px 24px;display:grid;gap:20px;align-items:center;
}
@media(min-width:768px){.cta-band{grid-template-columns:1fr auto;padding:36px 40px;gap:32px}}
.cta-band h2{font-size:clamp(20px,2.2vw,24px);margin-bottom:8px}
.cta-band p{font-size:14.5px;line-height:1.9;color:var(--c-text-2);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 相关入口 ---------- */
.rel-list{border-top:1px solid var(--c-border)}
.rel-list li{border-bottom:1px solid var(--c-border)}
.rel-list a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 6px;font-size:16px;font-weight:600;color:var(--c-text);
}
.rel-list a:hover{color:var(--c-primary)}
.rel-list .rel-sub{display:block;font-size:13.5px;font-weight:400;color:var(--c-text-3);margin-top:4px}
.rel-arrow{color:var(--c-accent);font-size:18px;transition:transform .2s ease-out;flex:0 0 auto}
.rel-list a:hover .rel-arrow{transform:translateX(2px)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0C2233;color:#B9C7D2;padding:56px 0 24px;margin-top:24px}
.foot-grid{display:grid;gap:32px}
@media(min-width:640px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.site-footer .brand{color:#fff}
.site-footer .brand:hover{color:#fff}
.foot-brand p{font-size:14px;line-height:1.9;color:#93A6B4;margin-top:14px;max-width:320px}
.foot-col h3{font-size:14px;color:#fff;font-weight:600;margin-bottom:14px;letter-spacing:.02em}
.foot-col li{font-size:14px;color:#93A6B4;line-height:1.9;margin-bottom:8px}
.foot-col a{color:#B9C7D2}
.foot-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--c-accent)}
.foot-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;
  font-size:13px;color:#8095A4;
}

/* ---------- 动效 ---------- */
.reveal{animation:fadeUp .28s ease-out both}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}
@media(max-width:767px){
  .dock-wrap{top:10px;padding:0 14px}
  .dock{flex-wrap:wrap;border-radius:20px;padding:10px 14px}
  .dock-nav{
    order:3;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;
    gap:4px;padding-top:8px;margin-top:4px;border-top:1px solid var(--c-border);
    scrollbar-width:none;
  }
  .dock-nav::-webkit-scrollbar{display:none}
  .dock-cta{display:none}
}

/* roulang page: category3 */
:root{
  --c-primary:#10456B;
  --c-primary-700:#0B3151;
  --c-primary-50:#E7EFF5;
  --c-accent:#E2663A;
  --c-ok:#1F8A70;
  --c-danger:#C0392B;
  --c-text:#101C26;
  --c-text-2:#4A5A68;
  --c-muted:#7C8B98;
  --c-bg:#F5F7F9;
  --c-card:#FFFFFF;
  --c-border:#E3E9EE;
  --c-footer:#0C2233;
  --c-footer-text:#B9C7D2;
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --shadow-sm:0 1px 2px rgba(16,28,38,.06);
  --shadow-card:0 8px 24px -12px rgba(16,69,107,.18);
  --font-zh:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-zh);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-weight:400;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;}
a:hover{color:var(--c-accent);}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--c-text);}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--c-text);line-height:1.35;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}

.container{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1280px){.container{padding:0 32px;}}

/* ============ 浮动 Dock 导航 ============ */
.dock-wrap{position:sticky;top:16px;z-index:60;padding:0 16px;}
.dock{
  max-width:1120px;margin:0 auto;
  display:flex;align-items:center;gap:16px;
  padding:10px 14px 10px 16px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-border);
  border-radius:999px;
  box-shadow:var(--shadow-card);
  transition:background .22s ease,box-shadow .22s ease;
}
.dock.is-scrolled{background:rgba(255,255,255,.95);box-shadow:0 14px 32px -16px rgba(16,69,107,.32);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand:hover{color:var(--c-primary);}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);display:grid;place-items:center;flex:0 0 auto;}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:16px;font-weight:700;color:var(--c-text);white-space:nowrap;letter-spacing:.01em;}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.dock-link{
  position:relative;padding:9px 14px;border-radius:999px;
  font-size:14.5px;color:var(--c-text-2);white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.dock-link::after{
  content:"";position:absolute;left:50%;bottom:3px;width:0;height:2px;
  background:var(--c-accent);border-radius:2px;transform:translateX(-50%);
  transition:width .2s ease;
}
.dock-link:hover{color:var(--c-primary);background:#F1F5F8;}
.dock-link:hover::after{width:18px;}
.dock-link.is-active{background:var(--c-primary-50);color:var(--c-primary);font-weight:600;}
.dock-link.is-active::after{display:none;}
.dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

.icon-btn{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--c-border);background:#fff;color:var(--c-text-2);
  display:grid;place-items:center;cursor:pointer;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.icon-btn:hover{color:var(--c-primary);background:var(--c-primary-50);border-color:#C9D8E4;}
.icon-btn svg{width:18px;height:18px;}

.search-panel{
  max-width:1120px;margin:10px auto 0;padding:14px;
  background:#fff;border:1px solid var(--c-border);border-radius:18px;
  box-shadow:var(--shadow-card);
}
.search-row{display:flex;gap:10px;}
.search-row input{
  flex:1 1 auto;height:46px;padding:0 14px;
  border:1px solid var(--c-border);border-radius:var(--r-input);background:#FBFCFD;
}
.search-row input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(16,69,107,.12);background:#fff;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-card);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:#C9D8E4;}
.btn-ghost:hover{background:var(--c-primary-50);border-color:var(--c-primary);color:var(--c-primary);}
.btn-light{background:#fff;color:var(--c-primary);}
.btn-light:hover{background:#F1F5F8;color:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--shadow-card);}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

.text-link{color:var(--c-primary);font-weight:600;position:relative;}
.text-link::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1.5px;background:var(--c-accent);transition:width .2s ease;}
.text-link:hover{color:var(--c-accent);}
.text-link:hover::after{width:100%;}

/* ============ 板块通用 ============ */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:80px 0;}}
.sec-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:26px;}
.sec-head h2{font-size:clamp(24px,2.6vw,28px);}
.sec-head .side-tag{
  font-size:12px;letter-spacing:.06em;color:var(--c-accent);
  background:rgba(226,102,58,.12);border-radius:999px;padding:3px 10px;
}
.sec-head .sec-more{margin-left:auto;font-size:14px;}

.breadcrumb{display:flex;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--c-muted);margin-bottom:16px;}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb .sep{color:#C3CDD6;}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  background:#fff url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--c-border);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.9) 45%,rgba(255,255,255,.6) 100%);
}
.cat-hero .container{position:relative;z-index:1;}
.cat-hero-grid{display:grid;gap:28px;align-items:center;padding:44px 0 48px;}
@media (min-width:1024px){.cat-hero-grid{grid-template-columns:1.15fr .85fr;gap:44px;padding:64px 0 68px;}}
.cat-hero h1{font-size:clamp(30px,4vw,40px);line-height:1.25;font-weight:700;}
.cat-hero .lead{margin-top:14px;font-size:16.5px;color:var(--c-text-2);max-width:560px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.tag{
  font-size:12.5px;letter-spacing:.04em;color:var(--c-primary);
  background:#fff;border:1px solid #CFDDE8;border-radius:999px;padding:5px 12px;
}
.hero-media{
  border-radius:var(--r-card);overflow:hidden;background:#EEF2F5;
  border:1px solid var(--c-border);box-shadow:var(--shadow-card);
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-media figcaption{font-size:13px;color:var(--c-muted);padding:10px 16px;background:#fff;border-top:1px solid var(--c-border);}

/* ============ 说明文字 ============ */
.intro-grid{display:grid;gap:26px;}
@media (min-width:1024px){.intro-grid{grid-template-columns:1.05fr .95fr;gap:44px;align-items:start;}}
.intro-copy p + p{margin-top:16px;}
.intro-copy p{color:var(--c-text-2);font-size:16px;}
.intro-note{
  background:#fff;border:1px solid var(--c-border);border-left:3px solid var(--c-accent);
  border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--shadow-sm);
}
.intro-note h3{font-size:17px;margin-bottom:10px;}
.intro-note ul li{
  position:relative;padding-left:18px;font-size:14.5px;color:var(--c-text-2);margin-top:8px;
}
.intro-note ul li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-accent);
}
.intro-figure{
  margin-top:24px;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-border);background:#EEF2F5;
}
.intro-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.intro-figure figcaption{font-size:13px;color:var(--c-muted);padding:10px 16px;background:#fff;border-top:1px solid var(--c-border);}

/* ============ 对照表 ============ */
.table-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.table-scroll{overflow-x:auto;}
.table-scroll table{width:100%;min-width:680px;border-collapse:collapse;}
.table-scroll thead th{
  text-align:left;font-size:12.5px;letter-spacing:.06em;font-weight:600;
  color:var(--c-muted);background:#F8FAFC;padding:14px 24px;
  border-bottom:1px solid var(--c-border);white-space:nowrap;
}
.table-scroll tbody td{
  padding:18px 24px;border-bottom:1px solid var(--c-border);
  font-size:15px;color:var(--c-text-2);vertical-align:top;
}
.table-scroll tbody td.key{width:28%;color:var(--c-text);font-size:16px;font-weight:600;}
.table-scroll tbody tr:last-child td{border-bottom:none;}
.table-scroll tbody tr:hover td{background:#FBFCFD;}
.table-foot{
  font-size:13px;color:var(--c-muted);padding:14px 24px;background:#F8FAFC;
  border-top:1px solid var(--c-border);
}

/* ============ FAQ ============ */
.faq-list{max-width:800px;}
.faq-item{
  background:#fff;border:1px solid var(--c-border);border-radius:14px;
  margin-bottom:12px;overflow:hidden;position:relative;transition:box-shadow .18s ease;
}
.faq-item:hover{box-shadow:var(--shadow-sm);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{
  flex:0 0 auto;margin-left:auto;width:22px;height:22px;border-radius:50%;
  display:grid;place-items:center;color:var(--c-primary);font-size:18px;line-height:1;
  background:var(--c-primary-50);transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item[open] summary .plus{transform:rotate(45deg);background:rgba(226,102,58,.14);color:var(--c-accent);}
.faq-item[open]{border-left:3px solid var(--c-accent);}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--c-text-2);line-height:1.9;}

/* ============ 横向 CTA ============ */
.cta-band{
  background:linear-gradient(120deg,var(--c-primary) 0%,#16527C 62%,#1B5E8A 100%);
  border-radius:20px;padding:32px;color:#fff;
  display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap;
  box-shadow:var(--shadow-card);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,26px);}
.cta-band p{color:#D3E2EE;font-size:15px;margin-top:10px;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}

/* ============ 相关入口 ============ */
.rel-grid{display:grid;gap:16px;}
@media (min-width:768px){.rel-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.rel-grid{grid-template-columns:repeat(3,1fr);}}
.rel-link{
  display:flex;align-items:center;gap:16px;background:#fff;
  border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:18px 20px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,background .18s ease;
}
.rel-link:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:#CFDDE8;background:#FBFDFE;color:var(--c-text);}
.rel-link .rel-idx{
  font-size:12px;letter-spacing:.06em;color:var(--c-accent);background:rgba(226,102,58,.12);
  border-radius:999px;padding:3px 9px;flex:0 0 auto;
}
.rel-link strong{display:block;font-size:16px;font-weight:600;color:var(--c-text);}
.rel-link span.desc{display:block;font-size:13.5px;color:var(--c-muted);margin-top:2px;}
.rel-link .arrow{margin-left:auto;color:var(--c-primary);transition:transform .18s ease;flex:0 0 auto;}
.rel-link:hover .arrow{transform:translateX(3px);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-footer);color:var(--c-footer-text);margin-top:72px;padding:56px 0 28px;}
.foot-grid{display:grid;gap:32px;}
@media (min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.3fr 1fr 1fr 1fr;gap:40px;}}
.site-footer .brand-text{color:#fff;}
.site-footer .brand-mark{background:rgba(255,255,255,.12);}
.foot-brand p{margin-top:14px;font-size:14px;color:#93A6B4;line-height:1.8;max-width:320px;}
.foot-col h3{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.02em;}
.foot-col ul li{margin-top:10px;font-size:14px;color:#93A6B4;}
.foot-col ul li a{color:var(--c-footer-text);font-size:14px;position:relative;}
.foot-col ul li a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1.5px;background:var(--c-accent);transition:width .2s ease;}
.foot-col ul li a:hover{color:#fff;}
.foot-col ul li a:hover::after{width:100%;}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8AA0AF;
}

/* ============ 响应式收口 ============ */
@media (max-width:1023px){
  .dock-nav{margin-left:auto;}
  .dock{border-radius:24px;}
}
@media (max-width:900px){
  .dock{flex-wrap:wrap;border-radius:22px;padding:12px 14px;gap:10px;}
  .dock-nav{width:100%;order:3;margin-left:0;overflow-x:auto;padding-bottom:2px;}
  .dock-nav::-webkit-scrollbar{display:none;}
  .dock-actions{margin-left:auto;}
  .brand-text{font-size:15px;}
}
@media (max-width:520px){
  .dock{top:12px;}
  .dock-wrap{top:12px;padding:0 12px;}
  .brand-text{font-size:14.5px;max-width:150px;overflow:hidden;text-overflow:ellipsis;}
  .cat-hero-grid{padding:34px 0 38px;}
  .btn{width:100%;}
  .dock-actions .btn{width:auto;}
  .search-row{flex-wrap:wrap;}
  .search-row .btn{width:100%;}
  .cta-band{padding:24px;border-radius:16px;}
  .cta-actions{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}