/* roulang page: index */
:root{
  --brand-700:#0E3A66;
  --brand-600:#1A5FA8;
  --brand-500:#2F7FC4;
  --brand-100:#DCEAF7;
  --brand-050:#EDF4FB;
  --accent-600:#C94F1D;
  --accent-500:#E4632D;
  --ink-900:#0E1B2A;
  --ink-600:#3F566E;
  --ink-400:#7B8FA3;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --line:#E3EAF3;
  --r-card:18px;
  --r-lg:24px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-card:0 1px 2px rgba(14,58,102,.06),0 8px 24px -12px rgba(14,58,102,.14);
  --shadow-hover:0 18px 40px -18px rgba(14,58,102,.28);
  --focus-ring:0 0 0 4px rgba(26,95,168,.18);
  --container:1180px;
  --section-pad:96px;
}
*,*::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","Source Han Sans CN",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{position:fixed;top:0;left:0;right:0;z-index:120}
.site-header::before{
  content:"";position:absolute;inset:0;
  background:rgba(255,255,255,.18);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.32);
  box-shadow:0 10px 30px -22px rgba(14,58,102,.4);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled::before{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:0 12px 34px -24px rgba(14,58,102,.5);
}
.nav-wrap{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .28s ease}
.site-header.is-scrolled .nav-wrap{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
.logo-mark{
  width:34px;height:34px;flex:none;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand-600),var(--brand-500));
  color:#fff;font-size:15px;font-weight:700;
  box-shadow:0 8px 18px -10px rgba(26,95,168,.95);
}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:block;padding:9px 14px;border-radius:8px;
  font-size:15px;color:var(--ink-600);transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:22%;right:22%;bottom:3px;height:2px;border-radius:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:center;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .22s ease,opacity .22s ease}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 12px 26px -16px rgba(26,95,168,.95)}
.btn-primary:hover{background:#1F6CBB;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px -14px rgba(26,95,168,.9)}
.btn-outline{background:#fff;border:1px solid var(--line);color:var(--ink-900)}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-600);transform:translateY(-1px);box-shadow:var(--shadow-card)}
.btn-outline:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--accent-600);font-size:14px;font-weight:600}
.link-arrow i{font-style:normal;transition:transform .2s ease}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--accent-500)}
.link-arrow:hover i{transform:translateX(3px)}

/* ============ 首屏 ============ */
.hero{position:relative;padding:140px 0 0;background:linear-gradient(180deg,var(--brand-050) 0%,var(--bg) 100%)}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.9}
.hero-veil{position:absolute;inset:0;background:linear-gradient(115deg,rgba(255,255,255,.96) 0%,rgba(237,244,251,.88) 48%,rgba(220,234,247,.74) 100%)}
.hero>.container{position:relative;z-index:2}
.hero-inner{max-width:760px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.85);border:1px solid var(--brand-100);
  color:var(--brand-700);font-size:13px;font-weight:600;
}
.hero-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500)}
.hero h1{margin-top:22px;font-size:clamp(34px,4.6vw,56px);line-height:1.16}
.hero-sub{margin-top:20px;max-width:620px;font-size:17px;color:var(--ink-600)}
.hero-btns{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{
  position:relative;z-index:3;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  margin-top:60px;margin-bottom:-48px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:0 26px 56px -34px rgba(14,58,102,.5);
  overflow:hidden;
}
.stat{padding:26px 24px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat-num{font-size:28px;font-weight:700;line-height:1.1;color:var(--brand-700);font-variant-numeric:tabular-nums}
.stat-label{margin-top:6px;font-size:13px;color:var(--ink-400)}

/* ============ 通用板块 ============ */
.section{padding:var(--section-pad) 0}
.section-alt{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:48px}
.eyebrow{display:block;margin-bottom:12px;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--accent-600);font-variant-numeric:tabular-nums}
.section-head h2{position:relative;padding-left:18px;font-size:clamp(26px,3vw,36px)}
.section-head h2::before{content:"";position:absolute;left:0;top:9px;width:3px;height:22px;border-radius:2px;background:var(--accent-500)}
.section-desc{margin-top:18px;font-size:16px;color:var(--ink-600)}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px}
.head-row .section-head{margin-bottom:0}

/* ============ 痛点行列表 ============ */
.pain-list{border-top:1px solid var(--line);margin-top:8px}
.pain-row{
  display:grid;grid-template-columns:76px 300px 1fr;gap:28px;align-items:baseline;
  padding:30px 12px;border-bottom:1px solid var(--line);
  transition:background .22s ease;
}
.pain-row:hover{background:rgba(237,244,251,.75)}
.pain-num{font-size:15px;font-weight:700;color:var(--accent-600);letter-spacing:.1em;font-variant-numeric:tabular-nums}
.pain-title{font-size:19px;font-weight:600;color:var(--ink-900)}
.pain-desc{font-size:15px;color:var(--ink-600)}

/* ============ 解决方案 ============ */
.solution-grid{display:grid;grid-template-columns:380px minmax(0,1fr);gap:64px;align-items:start}
.solution-sticky{position:sticky;top:112px}
.solution-sticky h2{position:relative;padding-left:18px;font-size:clamp(26px,3vw,36px)}
.solution-sticky h2::before{content:"";position:absolute;left:0;top:9px;width:3px;height:22px;border-radius:2px;background:var(--accent-500)}
.solution-sticky p{margin-top:18px;font-size:15.5px}
.solution-tags{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
.tag{display:inline-flex;align-items:center;padding:5px 14px;border-radius:var(--r-pill);background:var(--brand-050);border:1px solid var(--brand-100);color:var(--brand-600);font-size:13px;font-weight:600}
.solution-cards{display:grid;gap:24px}
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:box-shadow .28s ease,transform .28s ease;
}
.feature-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.feature-card:nth-child(1){margin-right:64px}
.feature-card:nth-child(2){margin-left:64px}
.feature-card:nth-child(3){margin-left:32px;margin-right:32px}
.feature-media{height:170px;overflow:hidden;background:var(--brand-100)}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.feature-card:hover .feature-media img{transform:scale(1.03)}
.feature-body{padding:26px 28px 28px}
.feature-body h3{font-size:20px;font-weight:600}
.feature-body p{margin-top:12px;font-size:15px;color:var(--ink-600)}

/* ============ 成果 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-bottom:28px}
.metric{background:var(--brand-050);border-radius:var(--r-card);padding:28px 24px}
.metric-num{font-size:34px;font-weight:700;line-height:1.1;color:var(--brand-700);font-variant-numeric:tabular-nums}
.metric-label{margin-top:10px;font-size:14px;color:var(--ink-600)}
.mosaic{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.mosaic-item{position:relative;height:228px;border-radius:22px;overflow:hidden;background:var(--brand-100)}
.mosaic-item img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.mosaic-item:hover img{transform:scale(1.03)}
.mosaic-caption{
  position:absolute;left:0;right:0;bottom:0;padding:36px 24px 20px;
  background:linear-gradient(0deg,rgba(14,27,42,.72),rgba(14,27,42,0));
  color:#fff;font-size:14px;font-weight:600;
}
.mosaic-solid{
  display:flex;flex-direction:column;justify-content:center;gap:14px;
  padding:32px;background:var(--brand-600);color:#fff;
}
.mosaic-solid strong{font-size:22px;line-height:1.4;color:#fff;font-weight:700}
.mosaic-solid span{font-size:14px;color:rgba(255,255,255,.82)}
.mosaic-solid .tag{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.28);color:#fff;align-self:flex-start}

/* ============ 用户反馈 ============ */
.voice-track{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.voice{
  position:relative;display:flex;flex-direction:column;gap:20px;
  padding:28px 26px 24px 32px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);
  transition:box-shadow .28s ease,transform .28s ease;
}
.voice:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.voice::before{content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;border-radius:0 3px 3px 0;background:var(--accent-500)}
.voice p{font-size:15.5px;line-height:1.82;color:var(--ink-600)}
.voice-author{display:flex;align-items:center;gap:12px;margin-top:auto}
.avatar{
  width:38px;height:38px;flex:none;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand-700);font-size:15px;font-weight:700;
}
.voice-name{font-size:14px;font-weight:600;color:var(--ink-900);line-height:1.4}
.voice-role{font-size:12.5px;color:var(--ink-400);line-height:1.4}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:box-shadow .28s ease,transform .28s ease;
}
.post-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.post-cover{position:relative;display:block;height:186px;overflow:hidden;background:var(--brand-100)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-badge{
  position:absolute;left:14px;top:14px;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.94);color:var(--brand-600);font-size:12px;font-weight:600;
  box-shadow:0 6px 16px -10px rgba(14,58,102,.6);
}
.post-body{display:flex;flex-direction:column;flex:1;padding:24px}
.post-title{font-size:17px;font-weight:600;line-height:1.5}
.post-title a:hover{color:var(--brand-600)}
.post-excerpt{
  margin-top:12px;font-size:14.5px;color:var(--ink-600);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-title{-webkit-line-clamp:2;display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:auto;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-400);
}
.post-card.is-feature{grid-column:span 2;flex-direction:row}
.post-card.is-feature .post-cover{flex:0 0 44%;width:44%;height:auto;min-height:270px}
.post-card.is-feature .post-body{padding:30px 32px}
.post-card.is-feature .post-title{font-size:21px}
.news-empty{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:64px 28px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--brand-050);
}
.news-empty svg{width:38px;height:38px;color:var(--brand-500)}
.news-empty p{font-size:15px;color:var(--ink-600)}
.news-empty a{color:var(--brand-600);font-weight:600;font-size:14px}
.news-empty a:hover{text-decoration:underline;text-underline-offset:4px}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:24px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--ink-900);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-600)}
.faq-item.is-open .faq-q{color:var(--brand-700)}
.faq-icon{position:relative;width:18px;height:18px;flex:none}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--accent-500);border-radius:2px;transition:transform .22s ease}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{margin:0 0 22px;padding:20px 22px;border-radius:12px;background:var(--brand-050);font-size:15px;line-height:1.85;color:var(--ink-600)}

/* ============ 底部 CTA ============ */
.cta-section{padding:0 0 var(--section-pad)}
.cta-band{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;
  padding:56px 56px;border-radius:var(--r-lg);overflow:hidden;
  background:var(--brand-600);
}
.cta-media{position:absolute;right:0;top:0;bottom:0;width:46%;background-image:url('/assets/images/coverpic/cover-3.webp');background-size:cover;background-position:center;opacity:.3}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(26,95,168,.96) 0%,rgba(26,95,168,.86) 45%,rgba(26,95,168,.42) 100%)}
.cta-text{position:relative;z-index:2;max-width:620px}
.cta-text h2{color:#fff;font-size:clamp(24px,2.8vw,32px);line-height:1.35}
.cta-text p{margin-top:14px;color:rgba(255,255,255,.86);font-size:15.5px}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px}
.cta-actions .btn-primary{background:#fff;color:var(--brand-700);box-shadow:0 14px 30px -18px rgba(0,0,0,.55)}
.cta-actions .btn-primary:hover{background:#F2F8FF}
.cta-actions .btn-outline{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

/* ============ 页脚 ============ */
.site-footer{margin-top:0;padding:72px 0 0;background:var(--ink-900);color:#B9C7D6;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:56px}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff}
.footer-brand p{margin-top:18px;color:#8FA4B8;line-height:1.85;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:20px}
.footer-col ul li+li{margin-top:12px}
.footer-col a{color:#B9C7D6;transition:color .2s ease}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-col p{color:#8FA4B8;line-height:1.85}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:24px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#7E93A8;
}

/* ============ 断点 ============ */
@media (max-width:1280px){
  :root{--container:1100px}
  .solution-grid{grid-template-columns:340px minmax(0,1fr);gap:48px}
}
@media (max-width:1024px){
  :root{--section-pad:72px}
  .solution-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .solution-sticky{position:static}
  .feature-card:nth-child(1),
  .feature-card:nth-child(2),
  .feature-card:nth-child(3){margin-left:0;margin-right:0}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .post-card.is-feature{grid-column:span 2;flex-direction:column}
  .post-card.is-feature .post-cover{width:100%;flex:none;height:220px;min-height:0}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:40px}
  .cta-band{padding:48px 40px}
}
@media (max-width:768px){
  :root{--section-pad:56px}
  .container{padding:0 20px}
  .nav-toggle{display:flex}
  .nav-actions .btn{display:none}
  .main-nav{
    position:fixed;top:64px;left:0;right:0;
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    padding:12px 20px 26px;background:rgba(255,255,255,.97);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px -28px rgba(14,58,102,.5);
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:transform .26s ease,opacity .26s ease;
  }
  body.nav-open .main-nav{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-link{padding:15px 6px;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .hero{padding-top:118px}
  .hero-inner{text-align:center;margin:0 auto}
  .hero-sub{margin-left:auto;margin-right:auto}
  .hero-btns{justify-content:center}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));margin-bottom:-36px}
  .stat{border-left:0;border-top:1px solid var(--line)}
  .stat:nth-child(1),.stat:nth-child(2){border-top:0}
  .stat:nth-child(odd){border-right:1px solid var(--line)}
  body .section:first-of-type{padding-top:calc(var(--section-pad) + 36px)}
  .pain-row{grid-template-columns:1fr;gap:8px;padding:24px 4px}
  .pain-num{margin-bottom:2px}
  .mosaic{grid-template-columns:minmax(0,1fr)}
  .mosaic-item{height:200px}
  .voice-track{
    grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:84%;
    overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;
    -webkit-overflow-scrolling:touch;
  }
  .voice{scroll-snap-align:start}
  .news-grid{grid-template-columns:minmax(0,1fr)}
  .post-card.is-feature{grid-column:auto}
  .head-row{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:38px 28px;gap:26px}
  .cta-media{width:100%;opacity:.22}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px;text-align:left}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .section-head{margin-bottom:32px}
}
@media (max-width:560px){
  .container{padding:0 18px}
  .hero{padding-top:104px}
  .hero-badge{font-size:12px;padding:5px 13px}
  .hero-btns .btn{width:100%}
  .hero-stats{grid-template-columns:minmax(0,1fr);margin-bottom:-28px}
  .stat{border-left:0;border-right:0 !important;border-top:1px solid var(--line)}
  .stat:first-child{border-top:0}
  .metric-grid{grid-template-columns:minmax(0,1fr)}
  .metric{padding:22px 20px}
  .feature-body{padding:20px}
  .post-body{padding:20px}
  .post-card.is-feature .post-body{padding:22px}
  .voice{padding:24px 20px 22px 26px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:16px;padding:20px 2px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --brand-700:#0E3A66;
  --brand-600:#1A5FA8;
  --brand-500:#2F7FC4;
  --brand-100:#DCEAF7;
  --brand-050:#EDF4FB;
  --accent-600:#C94F1D;
  --accent-500:#E4632D;
  --ink-900:#0E1B2A;
  --ink-600:#3F566E;
  --ink-400:#7B8FA3;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --line:#E3EAF3;
  --radius-card:18px;
  --radius-lg:24px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(14,58,102,.06), 0 8px 24px -12px rgba(14,58,102,.14);
  --shadow-2:0 18px 40px -18px rgba(14,58,102,.28);
  --focus:0 0 0 4px rgba(26,95,168,.18);
  --container:1180px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-600);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans CN","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{ margin:0; }
ul,ol{ padding:0; list-style:none; }
a{ color:inherit; text-decoration:none; transition:color .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease; }
img{ max-width:100%; display:block; }
button,input,select,textarea{ font:inherit; color:inherit; }
button{ background:none; border:0; cursor:pointer; }
:focus-visible{ outline:none; box-shadow:var(--focus); border-radius:6px; }
::selection{ background:var(--brand-100); color:var(--brand-700); }

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  border:1px solid transparent;
  transition:background-color .2s ease, color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.btn-sm{ height:38px; padding:0 18px; font-size:14px; }
.btn-primary{ background:var(--brand-600); color:#fff; }
.btn-primary:hover{ background:var(--brand-500); transform:translateY(-1px); box-shadow:var(--shadow-2); }
.btn-primary:active{ transform:translateY(0); box-shadow:var(--shadow-1); }
.btn-ghost{ background:#fff; color:var(--ink-900); border-color:var(--line); }
.btn-ghost:hover{ border-color:var(--brand-500); color:var(--brand-600); transform:translateY(-1px); box-shadow:var(--shadow-1); }
.btn-ghost:active{ transform:translateY(0); }
.btn-block{ width:100%; }

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--accent-600);
  position:relative;
}
.link-arrow span{ transition:transform .2s ease; }
.link-arrow:hover span{ transform:translateX(4px); }
.link-arrow::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-3px;
  height:2px;
  width:0;
  background:var(--accent-500);
  transition:width .22s ease;
}
.link-arrow:hover::after{ width:80%; }

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(14,58,102,.06), 0 10px 24px -20px rgba(14,58,102,.32);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{ box-shadow:0 18px 40px -18px rgba(14,58,102,.28); }
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
  transition:height .25s ease;
}
.site-header.is-scrolled .nav-wrap{ height:64px; }

.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:-0.01em;
  white-space:nowrap;
}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:10px;
  background:linear-gradient(140deg,var(--brand-600),var(--brand-500));
  color:#fff;
  font-size:16px;
  font-weight:700;
  box-shadow:0 8px 18px -10px rgba(26,95,168,.9);
  flex:0 0 auto;
}

.main-nav{ display:flex; align-items:center; gap:6px; }
.nav-link{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-600);
  border-radius:8px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:20%;
  right:20%;
  bottom:4px;
  height:2px;
  background:var(--accent-500);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .22s ease;
  border-radius:2px;
}
.nav-link:hover{ color:var(--brand-600); }
.nav-link:hover::after{ transform:scaleX(1); }
.nav-link.is-active{ color:var(--brand-700); font-weight:700; }
.nav-link.is-active::after{ transform:scaleX(1); }

.nav-actions{ display:flex; align-items:center; gap:12px; }
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:42px;
  height:42px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  padding:0 10px;
}
.nav-toggle span{
  display:block;
  height:2px;
  width:100%;
  background:var(--ink-900);
  border-radius:2px;
  transition:transform .22s ease, opacity .22s ease;
}
.nav-toggle.is-open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2){ opacity:0; }
.nav-toggle.is-open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ============ 页头 ============ */
.page-head{
  position:relative;
  background:
    repeating-linear-gradient(0deg, rgba(26,95,168,.055) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(90deg, rgba(26,95,168,.055) 0 1px, transparent 1px 34px),
    linear-gradient(180deg,#EDF4FB 0%,#F6F9FC 100%);
  border-bottom:1px solid var(--line);
  padding:52px 0 62px;
}
.page-head-inner{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:14px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--brand-500);
  flex-wrap:wrap;
}
.breadcrumb a{ color:var(--brand-500); }
.breadcrumb a:hover{ color:var(--brand-700); text-decoration:underline; text-underline-offset:4px; }
.breadcrumb .sep{ color:var(--ink-400); }
.breadcrumb .current{ color:var(--ink-400); }

.page-head h1{
  font-size:clamp(30px,4vw,44px);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-0.01em;
  color:var(--ink-900);
}
.page-head-lead{
  max-width:620px;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-600);
}
.head-capsule{
  position:absolute;
  right:0;
  bottom:0;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 18px;
  font-size:13px;
  font-weight:600;
  color:var(--brand-600);
  background:rgba(255,255,255,.86);
  border:1px solid var(--brand-100);
  border-radius:999px;
}
.head-capsule i{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent-500);
  display:inline-block;
}

/* ============ 主体布局 ============ */
.page-body{ padding:72px 0 84px; }
.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:44px;
  align-items:start;
}
.main-col{ display:flex; flex-direction:column; gap:64px; }

/* ============ 板块标题 ============ */
.block-head{ margin-bottom:28px; }
.section-title{
  position:relative;
  padding-left:16px;
  font-size:clamp(22px,2.4vw,28px);
  font-weight:700;
  line-height:1.35;
  color:var(--ink-900);
  letter-spacing:-0.01em;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;
  top:.2em;
  width:3px;
  height:18px;
  border-radius:2px;
  background:var(--accent-500);
}
.block-desc{
  margin-top:12px;
  font-size:15px;
  line-height:1.9;
  color:var(--ink-600);
  max-width:640px;
}

/* ============ 卡片网格 ============ */
.card-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.info-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}
.info-card:hover{
  box-shadow:var(--shadow-2);
  transform:translateY(-3px);
  border-color:var(--brand-100);
}
.card-media{
  position:relative;
  display:block;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--brand-050);
}
.card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.info-card:hover .card-media img{ transform:scale(1.03); }
.card-body{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:24px;
  flex:1;
}
.badge{
  align-self:flex-start;
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  font-size:13px;
  font-weight:600;
  color:var(--brand-600);
  background:var(--brand-050);
  border:1px solid var(--brand-100);
  border-radius:999px;
}
.card-body h3{
  font-size:19px;
  font-weight:600;
  line-height:1.45;
  color:var(--ink-900);
}
.card-body p{
  font-size:15px;
  line-height:1.85;
  color:var(--ink-600);
}
.card-body .link-arrow{ margin-top:auto; padding-top:6px; }

/* ============ 流程编号 ============ */
.flow-list{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.flow-item{
  display:grid;
  grid-template-columns:82px minmax(0,1fr);
  gap:18px;
  padding:26px 28px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.flow-item:last-child{ border-bottom:0; }
.flow-item:hover{ background:var(--brand-050); }
.flow-num{
  font-size:26px;
  font-weight:700;
  line-height:1.2;
  color:var(--accent-500);
  font-variant-numeric:tabular-nums;
  letter-spacing:0.02em;
}
.flow-item h3{
  font-size:18px;
  font-weight:600;
  color:var(--ink-900);
  margin-bottom:6px;
}
.flow-item p{
  font-size:15px;
  line-height:1.85;
  color:var(--ink-600);
}

/* ============ 适用场景 ============ */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.scene-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--accent-500);
  border-radius:14px;
  padding:22px 24px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .22s ease, transform .22s ease;
}
.scene-item:hover{ box-shadow:var(--shadow-2); transform:translateY(-2px); }
.scene-item h3{
  font-size:17px;
  font-weight:600;
  color:var(--ink-900);
  margin-bottom:8px;
}
.scene-item p{
  font-size:15px;
  line-height:1.85;
  color:var(--ink-600);
}

/* ============ FAQ ============ */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:border-color .22s ease, box-shadow .22s ease;
}
.faq-item.is-open{ border-color:var(--brand-100); box-shadow:var(--shadow-2); }
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink-900);
  line-height:1.6;
}
.faq-question:hover{ color:var(--brand-600); }
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:22px;
  height:22px;
  border-radius:50%;
  background:var(--brand-050);
  border:1px solid var(--brand-100);
  transition:transform .22s ease, background-color .22s ease;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;
  left:50%;
  background:var(--brand-600);
  border-radius:2px;
}
.faq-icon::before{ width:10px; height:2px; transform:translate(-50%,-50%); }
.faq-icon::after{ width:2px; height:10px; transform:translate(-50%,-50%); transition:opacity .22s ease; }
.faq-item.is-open .faq-icon{ transform:rotate(180deg); background:var(--brand-100); }
.faq-item.is-open .faq-icon::after{ opacity:0; }
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
  background:var(--brand-050);
}
.faq-answer-inner{
  padding:20px 24px;
  font-size:15px;
  line-height:1.9;
  color:var(--ink-600);
}

/* ============ 侧栏 ============ */
.sidebar{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-1);
}
.side-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:16px;
  font-weight:700;
  color:var(--ink-900);
  margin-bottom:16px;
}
.side-title::before{
  content:"";
  width:3px;
  height:14px;
  border-radius:2px;
  background:var(--accent-500);
}
.toc-list{ display:flex; flex-direction:column; }
.toc-list li + li{ border-top:1px solid var(--line); }
.toc-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:13px 2px;
  font-size:15px;
  color:var(--ink-600);
}
.toc-list a::before{
  content:"";
  flex:0 0 auto;
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--brand-100);
  transition:background-color .2s ease;
}
.toc-list a span{ flex:1; margin-left:10px; }
.toc-list a i{
  font-style:normal;
  font-size:13px;
  color:var(--ink-400);
  font-variant-numeric:tabular-nums;
  transition:color .2s ease, transform .2s ease;
}
.toc-list a:hover{ color:var(--brand-600); }
.toc-list a:hover::before{ background:var(--accent-500); }
.toc-list a:hover i{ color:var(--accent-600); transform:translateX(2px); }

.side-cta{
  background:var(--brand-050);
  border:1px solid var(--brand-100);
  border-radius:var(--radius-card);
  padding:26px 24px;
}
.side-cta h3{
  font-size:18px;
  font-weight:700;
  color:var(--ink-900);
  line-height:1.5;
  margin-bottom:10px;
}
.side-cta p{
  font-size:14px;
  line-height:1.85;
  color:var(--ink-600);
  margin-bottom:18px;
}
.side-note{
  display:flex;
  gap:10px;
  font-size:13px;
  line-height:1.8;
  color:var(--ink-400);
  padding:0 4px;
}
.side-note::before{
  content:"";
  flex:0 0 auto;
  width:3px;
  border-radius:2px;
  background:var(--brand-100);
}

/* ============ 底部 CTA ============ */
.cta-section{ padding:0 0 96px; }
.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  padding:46px 48px;
  border-radius:var(--radius-lg);
  background:var(--brand-050);
  border:1px solid var(--brand-100);
  box-shadow:var(--shadow-1);
}
.cta-band::after{
  content:"";
  position:absolute;
  top:0;
  right:0;
  bottom:0;
  width:44%;
  background:url('/assets/images/coverpic/cover-7.webp') center/cover no-repeat;
  opacity:.16;
  -webkit-mask-image:linear-gradient(90deg, transparent 0%, #000 62%);
  mask-image:linear-gradient(90deg, transparent 0%, #000 62%);
  pointer-events:none;
}
.cta-band-text{ position:relative; z-index:1; max-width:600px; }
.cta-band h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:700;
  color:var(--ink-900);
  line-height:1.4;
  letter-spacing:-0.01em;
}
.cta-band p{
  margin-top:12px;
  font-size:15px;
  line-height:1.9;
  color:var(--ink-600);
}
.cta-band-actions{
  position:relative;
  z-index:1;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-900);
  color:#B9C7D6;
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.9;
  color:#9FB1C4;
  max-width:340px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-col ul li + li{ margin-top:10px; }
.footer-col a{
  font-size:14px;
  color:#B9C7D6;
  position:relative;
}
.footer-col a:hover{ color:#fff; }
.footer-col a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-3px;
  height:1px;
  width:0;
  background:var(--accent-500);
  transition:width .22s ease;
}
.footer-col a:hover::after{ width:100%; }
.footer-col p{
  font-size:14px;
  line-height:1.9;
  color:#9FB1C4;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:22px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:#8FA3B6;
}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container{ max-width:1080px; }
  .layout{ grid-template-columns:minmax(0,1fr) 300px; gap:36px; }
}
@media (max-width:1024px){
  .container{ padding:0 22px; }
  .layout{ grid-template-columns:minmax(0,1fr); gap:48px; }
  .sidebar{ position:static; }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:36px; }
  .page-body{ padding:60px 0 72px; }
  .cta-section{ padding-bottom:76px; }
}
@media (max-width:768px){
  .nav-wrap{ height:64px; }
  .main-nav{
    position:fixed;
    left:0;
    right:0;
    top:64px;
    bottom:0;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:16px 22px 32px;
    background:rgba(255,255,255,.97);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border-top:1px solid var(--line);
    transform:translateY(-10px);
    opacity:0;
    pointer-events:none;
    overflow-y:auto;
    transition:opacity .22s ease, transform .22s ease;
  }
  .main-nav.is-open{ opacity:1; transform:translateY(0); pointer-events:auto; }
  .nav-link{
    padding:16px 2px;
    font-size:17px;
    border-bottom:1px solid var(--line);
    border-radius:0;
  }
  .nav-link::after{ display:none; }
  .nav-link.is-active{ color:var(--brand-600); }
  .nav-toggle{ display:flex; }
  .nav-actions .btn-primary{ display:none; }

  .page-head{ padding:40px 0 48px; }
  .page-head-inner{ align-items:center; text-align:center; }
  .breadcrumb{ justify-content:center; }
  .page-head-lead{ font-size:15px; }
  .head-capsule{ position:static; margin-top:6px; }

  .card-grid{ grid-template-columns:minmax(0,1fr); }
  .scene-grid{ grid-template-columns:minmax(0,1fr); }
  .flow-item{ grid-template-columns:60px minmax(0,1fr); padding:22px 20px; }
  .flow-num{ font-size:22px; }

  .cta-band{
    flex-direction:column;
    align-items:flex-start;
    padding:34px 26px;
    gap:24px;
  }
  .cta-band::after{ width:70%; opacity:.12; }
  .cta-band-actions{ width:100%; }

  .footer-grid{ grid-template-columns:1fr; text-align:center; gap:32px; }
  .footer-brand p{ margin:0 auto; }
  .footer-bottom{ flex-direction:column; text-align:center; }
  .site-footer{ padding-top:56px; }
}
@media (max-width:560px){
  .container{ padding:0 18px; }
  body{ font-size:15px; }
  .page-body{ padding:46px 0 56px; }
  .main-col{ gap:52px; }
  .card-body{ padding:20px; }
  .faq-question{ padding:18px 18px; font-size:16px; }
  .faq-answer-inner{ padding:18px; }
  .side-card{ padding:20px; }
  .btn{ width:100%; }
  .btn-sm{ width:auto; }
  .cta-band-actions .btn{ width:100%; }
  .cta-section{ padding-bottom:60px; }
}

/* roulang page: article */
:root{
  --brand-700:#0E3A66;
  --brand-600:#1A5FA8;
  --brand-500:#2F7FC4;
  --brand-100:#DCEAF7;
  --brand-050:#EDF4FB;
  --accent-600:#C94F1D;
  --accent-500:#E4632D;
  --ink-900:#0E1B2A;
  --ink-600:#3F566E;
  --ink-400:#7B8FA3;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --line:#E3EAF3;
  --radius-card:18px;
  --radius-lg:24px;
  --radius-btn:10px;
  --radius-input:12px;
  --shadow-card:0 1px 2px rgba(14,58,102,.06), 0 8px 24px -12px rgba(14,58,102,.14);
  --shadow-hover:0 18px 40px -18px rgba(14,58,102,.28);
  --focus-ring:0 0 0 4px rgba(26,95,168,.18);
  --nav-h:72px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans CN","Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.01em;line-height:1.3;}
p{margin:0;}
:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:6px;}

.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}
.narrow{max-width:760px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.18);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.32);
  box-shadow:0 6px 24px -18px rgba(14,58,102,.35);
  transition:background .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.site-header.is-solid{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:0 8px 26px -20px rgba(14,58,102,.45);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:var(--nav-h);
  transition:height .25s ease;
}
.site-header.is-scrolled .nav-wrap{height:64px;}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  border-radius:9px;
  background:var(--brand-600);
  color:#fff;
  font-size:15px;
  font-weight:700;
  box-shadow:0 6px 16px -10px rgba(26,95,168,.9);
}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  padding:9px 14px;
  border-radius:9px;
  font-size:15px;
  color:var(--ink-600);
  transition:color .2s ease, background .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:18%;
  right:18%;
  bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--accent-500);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-700);background:rgba(237,244,251,.72);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:transform .18s ease, box-shadow .22s ease, background .22s ease, color .22s ease, border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 10px 24px -14px rgba(26,95,168,.95);}
.btn-primary:hover{background:#1F6DBD;transform:translateY(-1px);box-shadow:0 16px 30px -16px rgba(26,95,168,.95);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--ink-900);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-card);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--accent-600);
  font-size:14px;
  font-weight:600;
}
.link-more span{transition:transform .2s ease;}
.link-more:hover span{transform:translateX(4px);}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:22px 0 0;
  font-size:13px;
  color:var(--brand-600);
}
.breadcrumb a{color:var(--brand-600);}
.breadcrumb a:hover{color:var(--accent-600);text-decoration:underline;text-underline-offset:4px;}
.breadcrumb .sep{color:var(--ink-400);}
.breadcrumb .current{color:var(--ink-400);}

/* ============ 文章头部 ============ */
.article-top{padding:22px 0 0;}
.article-head{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:36px 40px 30px;
  box-shadow:var(--shadow-card);
  margin-top:18px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  color:var(--brand-600);
  background:var(--brand-050);
  border:1px solid var(--brand-100);
}
.article-head h1{
  margin:18px 0 0;
  font-size:clamp(28px,3.4vw,40px);
  line-height:1.32;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 20px;
  margin-top:20px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:14px;
  color:var(--ink-400);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--brand-100);}
.article-meta strong{color:var(--ink-600);font-weight:600;}

/* ============ 目录折叠块 ============ */
.toc{
  margin-top:24px;
  background:var(--brand-050);
  border:1px solid var(--brand-100);
  border-radius:var(--radius-card);
  overflow:hidden;
}
.toc-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  width:100%;
  padding:16px 22px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-700);
}
.toc-head .toc-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:26px;height:26px;
  border-radius:8px;
  background:#fff;
  border:1px solid var(--brand-100);
  color:var(--brand-600);
  font-size:15px;
  transition:transform .2s ease;
}
.toc.is-open .toc-head .toc-icon{transform:rotate(45deg);}
.toc-list{
  display:none;
  padding:0 22px 18px;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:8px 24px;
}
.toc.is-open .toc-list{display:grid;}
.toc-list a{
  display:block;
  padding:6px 0;
  font-size:14px;
  color:var(--ink-600);
  border-bottom:1px dashed var(--line);
}
.toc-list a:hover{color:var(--accent-600);}

/* ============ 正文阅读区 ============ */
.article-main{padding:34px 0 0;}
.article-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:44px 48px 52px;
  box-shadow:var(--shadow-card);
  font-size:17px;
  line-height:1.9;
  color:#26374A;
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 22px;}
.article-body h2{
  position:relative;
  margin:44px 0 18px;
  padding-left:15px;
  font-size:24px;
  font-weight:700;
  color:var(--ink-900);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.32em;
  width:3px;
  height:18px;
  border-radius:2px;
  background:var(--accent-500);
}
.article-body h3{margin:32px 0 14px;font-size:20px;font-weight:600;color:var(--ink-900);}
.article-body h4{margin:26px 0 12px;font-size:17px;font-weight:600;color:var(--brand-700);}
.article-body a{color:var(--brand-600);border-bottom:1px solid var(--brand-100);}
.article-body a:hover{color:var(--accent-600);border-bottom-color:var(--accent-500);}
.article-body ul,
.article-body ol{margin:0 0 22px;padding-left:2px;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:4px;top:.72em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand-500);
}
.article-body ol{counter-reset:artnum;}
.article-body ol li{position:relative;padding-left:34px;margin-bottom:10px;counter-increment:artnum;}
.article-body ol li::before{
  content:counter(artnum,decimal-leading-zero);
  position:absolute;
  left:0;top:.1em;
  font-size:13px;
  font-weight:700;
  color:var(--accent-600);
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:26px 0;
  padding:18px 24px;
  background:var(--brand-050);
  border-left:3px solid var(--brand-500);
  border-radius:4px 14px 14px 4px;
  color:var(--ink-600);
  font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;
  height:auto;
  border-radius:16px;
  margin:26px 0 10px;
  box-shadow:var(--shadow-card);
}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-400);text-align:center;margin-top:8px;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:26px 0;
  font-size:15px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
}
.article-body thead th{
  background:var(--brand-050);
  color:var(--brand-700);
  font-weight:600;
  text-align:left;
}
.article-body th,
.article-body td{
  padding:13px 16px;
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
.article-body tbody tr:nth-child(even){background:#FAFCFE;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body code{
  font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;
  font-size:14px;
  background:#F1F5F9;
  color:var(--accent-600);
  padding:2px 6px;
  border-radius:6px;
}
.article-body pre{
  margin:26px 0;
  padding:20px 22px;
  background:#F3F6FA;
  border:1px solid var(--line);
  border-radius:14px;
  overflow-x:auto;
  line-height:1.7;
}
.article-body pre code{background:none;color:var(--ink-900);padding:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* ============ 未找到 ============ */
.notice-empty{
  text-align:center;
  padding:64px 28px;
  border:1px dashed var(--brand-100);
  border-radius:var(--radius-card);
  background:var(--brand-050);
}
.notice-empty .notice-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:56px;height:56px;
  margin:0 auto 16px;
  border-radius:16px;
  background:#fff;
  color:var(--brand-600);
  font-size:24px;
  border:1px solid var(--brand-100);
}
.notice-empty h2{font-size:20px;margin-bottom:8px;}
.notice-empty p{color:var(--ink-400);font-size:15px;margin-bottom:20px;}

/* ============ 相关推荐 ============ */
.related{padding:72px 0 0;}
.section-head{margin-bottom:26px;}
.section-head h2{
  position:relative;
  padding-left:15px;
  font-size:clamp(22px,2.4vw,28px);
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.34em;
  width:3px;height:18px;
  border-radius:2px;
  background:var(--accent-500);
}
.section-head p{margin-top:10px;font-size:15px;color:var(--ink-400);}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.re-card{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .22s ease, box-shadow .22s ease;
}
.re-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.re-thumb{
  flex:0 0 92px;
  width:92px;height:70px;
  border-radius:12px;
  overflow:hidden;
  background:var(--brand-050);
}
.re-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.re-card:hover .re-thumb img{transform:scale(1.05);}
.re-card h3{
  font-size:15px;
  font-weight:600;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.re-card time{display:block;margin-top:8px;font-size:13px;color:var(--ink-400);font-variant-numeric:tabular-nums;}

/* ============ 返回入口 ============ */
.back-row{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:34px;
  padding-top:28px;
  border-top:1px solid var(--line);
}

/* ============ 底部 CTA ============ */
.cta-band{padding:80px 0 0;}
.cta-box{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  align-items:center;
  gap:32px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:linear-gradient(120deg,var(--brand-050) 0%,#E4EEF9 100%);
  border:1px solid var(--brand-100);
  padding:44px 48px;
  box-shadow:var(--shadow-card);
}
.cta-box .cta-text{position:relative;z-index:2;}
.cta-box h2{font-size:clamp(22px,2.6vw,30px);}
.cta-box p{margin-top:12px;font-size:15px;color:var(--ink-600);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.cta-visual{
  position:relative;
  z-index:1;
  height:200px;
  border-radius:var(--radius-card);
  background-image:url('/assets/images/coverpic/cover-6.png');
  background-size:cover;
  background-position:center;
  box-shadow:var(--shadow-card);
}
.cta-visual::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--radius-card);
  background:linear-gradient(180deg,rgba(26,95,168,.06),rgba(14,58,102,.24));
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  background:var(--ink-900);
  color:#B9C7D6;
  padding:64px 0 0;
  font-size:14.5px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand p{color:#93A6BA;line-height:1.85;max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{color:#B9C7D6;transition:color .2s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-col p{color:#93A6BA;line-height:1.85;}
.footer-bottom{
  margin-top:52px;
  padding:22px 0 26px;
  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:#7F93A8;
}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container{max-width:1040px;}
}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-box{grid-template-columns:1fr;padding:36px 32px;}
  .cta-visual{height:170px;}
  .related-grid{grid-template-columns:1fr;}
  .toc-list{grid-template-columns:1fr;}
}
@media (max-width:768px){
  :root{--nav-h:64px;}
  .container{padding:0 20px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;
    inset:var(--nav-h) 0 0 0;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:22px 20px 32px;
    background:rgba(246,249,252,.97);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity .22s ease, transform .22s ease, visibility .22s ease;
    overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-link{padding:14px 12px;font-size:16px;border-bottom:1px solid var(--line);border-radius:0;}
  .nav-link::after{display:none;}
  .nav-actions .btn{display:none;}
  .nav-actions .btn.btn-sm{display:none;}
  .article-head{padding:26px 22px 24px;}
  .article-body{padding:28px 22px 34px;font-size:16px;line-height:1.88;}
  .article-body h2{font-size:21px;margin-top:34px;}
  .article-body h3{font-size:18px;}
  .article-body table{font-size:14px;}
  .article-body th,.article-body td{padding:11px 12px;}
  .related{padding-top:56px;}
  .cta-band{padding-top:56px;}
  .site-footer{margin-top:64px;padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;text-align:left;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;margin-top:36px;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .article-head h1{font-size:24px;}
  .article-body{padding:22px 18px 28px;}
  .article-body img{border-radius:14px;}
  .btn{width:100%;}
  .back-row .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .re-card{flex-direction:column;}
  .re-thumb{width:100%;flex:none;height:150px;}
  .logo{font-size:15.5px;}
}

/* roulang page: category2 */
:root{
  --brand-700:#0E3A66;
  --brand-600:#1A5FA8;
  --brand-500:#2F7FC4;
  --brand-100:#DCEAF7;
  --brand-050:#EDF4FB;
  --accent-600:#C94F1D;
  --accent-500:#E4632D;
  --ink-900:#0E1B2A;
  --ink-600:#3F566E;
  --ink-400:#7B8FA3;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --line:#E3EAF3;
  --ok:#1F7A5A;
  --radius-card:18px;
  --radius-lg:24px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(14,58,102,.06), 0 8px 24px -12px rgba(14,58,102,.14);
  --shadow-hover:0 18px 40px -18px rgba(14,58,102,.28);
  --shadow-focus:0 0 0 4px rgba(26,95,168,.18);
}

*,*::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","Source Han Sans CN",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:-0.01em;line-height:1.3;}
p{margin:0;}
input,textarea,select{font:inherit;}
::selection{background:var(--brand-100);color:var(--brand-700);}

.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:200;
  background:rgba(255,255,255,.18);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.32);
  box-shadow:0 6px 24px -18px rgba(14,58,102,.45);
  transition:background .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px -20px rgba(14,58,102,.5);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
  transition:height .28s ease;
}
.site-header.is-scrolled .nav-wrap{height:64px;}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:-0.01em;
  white-space:nowrap;
}
.logo-mark{
  width:34px;height:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  background:linear-gradient(140deg,var(--brand-600),var(--brand-500));
  color:#fff;
  font-size:16px;
  font-weight:700;
  box-shadow:0 6px 16px -8px rgba(26,95,168,.8);
  flex:none;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:8px;
}
.nav-link{
  position:relative;
  padding:8px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-600);
  border-radius:8px;
  transition:color .2s ease, background .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:20%;right:20%;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--accent-500);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.7);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--ink-900);
  transition:transform .25s ease, opacity .25s ease;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary{
  background:var(--brand-600);
  color:#fff;
  box-shadow:0 10px 24px -14px rgba(26,95,168,.9);
}
.btn-primary:hover{background:#1F6FBD;transform:translateY(-1px);box-shadow:0 16px 30px -16px rgba(26,95,168,.95);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:#fff;
  color:var(--ink-900);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--accent-600);
}
.btn-link .arw{transition:transform .2s ease;}
.btn-link:hover .arw{transform:translateX(4px);}
:focus-visible{
  outline:none;
  box-shadow:var(--shadow-focus);
  border-radius:8px;
}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  padding:150px 0 62px;
  min-height:300px;
  overflow:hidden;
  background:
    radial-gradient(1000px 420px at 84% -10%, rgba(47,127,196,.20), transparent 70%),
    linear-gradient(160deg,#F2F8FE 0%,#E4F0FB 52%,#F7FBFF 100%);
  border-bottom:1px solid var(--line);
}
.page-head::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(26,95,168,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,95,168,.055) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.25));
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.25));
  pointer-events:none;
}
.page-head::after{
  content:"";
  position:absolute;
  right:-120px;top:-80px;
  width:360px;height:360px;
  border-radius:50%;
  background:radial-gradient(circle at 35% 35%, rgba(228,99,45,.16), transparent 68%);
  pointer-events:none;
}
.page-head .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--brand-500);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--brand-500);}
.breadcrumb a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--ink-400);}
.breadcrumb .current{color:var(--ink-400);}
.page-head h1{
  font-size:clamp(32px,4.4vw,52px);
  font-weight:700;
  margin-bottom:18px;
}
.page-head .lede{
  max-width:640px;
  font-size:17px;
  color:var(--ink-600);
}
.head-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--brand-050);
  border:1px solid var(--brand-100);
  color:var(--brand-600);
  font-size:13px;
  font-weight:600;
  letter-spacing:.01em;
}
.pill-accent{
  background:#FDF1EB;
  border-color:#F7D9CB;
  color:var(--accent-600);
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:#fff;}
.sec-head{max-width:720px;margin-bottom:52px;}
.sec-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent-600);
  margin-bottom:14px;
}
.sec-title{
  position:relative;
  padding-left:18px;
  font-size:clamp(26px,3vw,36px);
  font-weight:700;
  margin-bottom:18px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;top:.28em;
  width:3px;height:18px;
  border-radius:3px;
  background:var(--accent-500);
}
.sec-desc{font-size:16px;color:var(--ink-600);}

/* ---------- 编号流程 ---------- */
.steps{display:flex;flex-direction:column;gap:26px;}
.step-item{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
  padding:32px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  transition:box-shadow .25s ease, transform .25s ease;
}
.step-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.step-item:nth-child(even) .step-media{order:-1;}
.step-num{
  font-size:44px;
  font-weight:700;
  line-height:1;
  color:var(--brand-100);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  margin-bottom:12px;
  transition:color .25s ease;
}
.step-item:hover .step-num{color:var(--accent-500);}
.step-body h3{
  font-size:21px;
  font-weight:600;
  margin-bottom:12px;
}
.step-body p{font-size:15.5px;color:var(--ink-600);}
.step-body p + p{margin-top:10px;}
.step-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:18px;
}
.step-media{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  aspect-ratio:16/11;
  background:var(--brand-050);
  border:1px solid var(--line);
}
.step-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.step-item:hover .step-media img{transform:scale(1.04);}
.step-media .tag{
  position:absolute;
  left:14px;top:14px;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.92);
  color:var(--brand-700);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.02em;
  box-shadow:0 6px 18px -10px rgba(14,58,102,.6);
}

/* ---------- 准备事项信息条 ---------- */
.prep-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  background:#fff;
  border:1px dashed var(--brand-100);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.prep-item{
  padding:28px 26px;
  border-right:1px dashed var(--brand-100);
  transition:background .22s ease;
}
.prep-item:last-child{border-right:0;}
.prep-item:hover{background:var(--brand-050);}
.prep-item .idx{
  font-size:13px;
  font-weight:700;
  color:var(--accent-600);
  font-variant-numeric:tabular-nums;
  letter-spacing:.1em;
  display:block;
  margin-bottom:10px;
}
.prep-item h4{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.prep-item p{font-size:14.5px;color:var(--ink-400);line-height:1.75;}

/* ---------- 适用场景 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.scene-card{
  padding:28px 26px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}
.scene-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);border-color:var(--brand-100);}
.scene-ico{
  width:44px;height:44px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:var(--brand-050);
  color:var(--brand-600);
  font-size:18px;
  font-weight:700;
  margin-bottom:18px;
  font-variant-numeric:tabular-nums;
}
.scene-card h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.scene-card p{font-size:15px;color:var(--ink-600);}
.scene-card .mini-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  font-size:14.5px;
  font-weight:600;
  color:var(--accent-600);
}
.scene-card .mini-link .arw{transition:transform .2s ease;}
.scene-card:hover .mini-link .arw{transform:translateX(4px);}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:22px 26px;
  border-radius:var(--radius-card);
  background:#FDF1EB;
  border:1px solid #F7D9CB;
  margin-top:32px;
}
.notice .mark{
  flex:none;
  width:26px;height:26px;
  border-radius:8px;
  background:var(--accent-500);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
}
.notice p{font-size:15px;color:#8A3A14;line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:14px;
  max-width:900px;
}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:box-shadow .22s ease, border-color .22s ease;
}
.faq-item:hover{border-color:var(--brand-100);}
.faq-item.is-open{box-shadow:var(--shadow-card);border-color:var(--brand-100);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  text-align:left;
  padding:22px 26px;
  font-size:17px;
  font-weight:600;
  color:var(--ink-900);
}
.faq-icon{
  flex:none;
  position:relative;
  width:22px;height:22px;
  border-radius:50%;
  background:var(--brand-050);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--brand-600);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .22s ease, opacity .22s ease;
}
.faq-icon::before{width:11px;height:2px;}
.faq-icon::after{width:2px;height:11px;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a-inner{
  padding:0 26px 22px;
  font-size:15px;
  color:var(--ink-600);
  background:var(--brand-050);
  padding-top:20px;
  line-height:1.9;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--brand-600);
  padding:56px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  box-shadow:0 24px 60px -30px rgba(14,58,102,.7);
}
.cta-band .cta-bg{
  position:absolute;
  inset:0;
  background-image:url(/assets/images/coverpic/cover-3.webp);
  background-size:cover;
  background-position:center;
  opacity:.22;
  mix-blend-mode:luminosity;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(105deg,rgba(14,58,102,.92) 12%,rgba(26,95,168,.72) 58%,rgba(47,127,196,.5) 100%);
}
.cta-content{position:relative;z-index:2;max-width:620px;}
.cta-content h2{
  color:#fff;
  font-size:clamp(24px,2.6vw,32px);
  font-weight:700;
  margin-bottom:14px;
}
.cta-content p{color:#D6E5F5;font-size:15.5px;}
.cta-actions{
  position:relative;
  z-index:2;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.cta-actions .btn-primary{
  background:#fff;
  color:var(--brand-700);
  box-shadow:0 14px 30px -16px rgba(0,0,0,.6);
}
.cta-actions .btn-primary:hover{background:#F2F8FE;}
.cta-actions .btn-ghost{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.55);
  box-shadow:none;
}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:#B9C7D6;
  padding:72px 0 0;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:56px;
}
.footer-brand .footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
}
.footer-brand p{font-size:14.5px;line-height:1.85;color:#8FA4B8;max-width:340px;}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{
  font-size:14.5px;
  color:#B9C7D6;
  transition:color .2s ease;
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-col p{font-size:14.5px;line-height:1.85;color:#8FA4B8;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;
  font-size:13.5px;
  color:#7E93A8;
}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{max-width:1080px;}
  .step-item{gap:36px;}
}
@media (max-width:1024px){
  .main-nav{gap:2px;}
  .nav-link{padding:8px 10px;font-size:14.5px;}
  .step-item{grid-template-columns:1fr;gap:24px;padding:26px;}
  .step-item:nth-child(even) .step-media{order:0;}
  .prep-strip{grid-template-columns:repeat(2,1fr);}
  .prep-item:nth-child(2n){border-right:0;}
  .prep-item:nth-child(1),.prep-item:nth-child(2){border-bottom:1px dashed var(--brand-100);}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 34px;}
}
@media (max-width:768px){
  .section{padding:72px 0;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;
    top:72px;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:20px 24px 28px;
    background:rgba(246,249,252,.97);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px -28px rgba(14,58,102,.5);
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity .25s ease, transform .25s ease, visibility .25s ease;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-link{
    padding:14px 12px;
    font-size:16px;
    border-bottom:1px solid var(--line);
    border-radius:0;
  }
  .nav-link::after{display:none;}
  .nav-actions .btn-sm{display:none;}
  .page-head{padding:126px 0 52px;min-height:260px;}
  .page-head .lede{font-size:15.5px;}
  .sec-head{margin-bottom:36px;}
  .scene-grid{grid-template-columns:1fr;}
  .prep-strip{grid-template-columns:1fr;}
  .prep-item{border-right:0;border-bottom:1px dashed var(--brand-100);}
  .prep-item:last-child{border-bottom:0;}
  .faq-q{padding:18px 20px;font-size:15.5px;}
  .faq-a-inner{padding:18px 20px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1fr;gap:34px;text-align:center;}
  .footer-brand .footer-logo{justify-content:center;}
  .footer-brand p{margin:0 auto;}
  .footer-bottom{justify-content:center;text-align:center;}
  .cta-band{padding:36px 24px;gap:26px;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .step-item{padding:20px;}
  .step-num{font-size:36px;}
  .step-body h3{font-size:19px;}
  .scene-card{padding:22px 20px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .cta-actions{width:100%;}
  .nav-wrap{height:64px;}
  .site-header.is-scrolled .nav-wrap{height:60px;}
  .logo{font-size:16px;}
  .logo-mark{width:30px;height:30px;font-size:14px;}
}