/* roulang page: index */
:root{
  --primary:#2E6F8E;
  --primary-dark:#17465C;
  --primary-light:#EAF3F8;
  --teal:#7FB7B2;
  --amber:#D99A4E;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --text:#1B2A33;
  --muted:#5B6B75;
  --border:#DCE7ED;
  --shadow:0 12px 32px rgba(23,70,92,.08);
  --shadow-lg:0 16px 40px rgba(23,70,92,.12);
  --radius:16px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:640px){.container-x{padding:0 16px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--primary-dark);letter-spacing:.5px;white-space:nowrap}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-weight:700;
  box-shadow:0 6px 14px rgba(23,70,92,.22);
}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-flex;align-items:center;height:36px;padding:0 12px;
  font-size:15px;color:var(--muted);border-radius:9px;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--primary-dark);background:var(--primary-light)}
.nav-link[aria-current="page"]{color:var(--primary-dark);background:var(--primary-light);font-weight:600}
.header-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.search-box{
  position:relative;width:280px;display:flex;align-items:center;gap:8px;
  height:40px;padding:0 12px;border:1px solid var(--border);border-radius:10px;
  background:#F3F7FA;color:var(--muted);font-size:14px;transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(46,111,142,.12)}
.search-box input{border:0;background:transparent;outline:none;flex:1;font-size:14px;color:var(--text);min-width:0}
.search-box input::placeholder{color:#8FA3AE}
.kbd{
  font-size:11px;line-height:1;padding:3px 6px;border-radius:6px;border:1px solid var(--border);
  background:#fff;color:#7C8E99;white-space:nowrap;
}
.search-suggest{
  position:absolute;top:48px;left:0;right:0;display:none;
  background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-lg);
  padding:10px;font-size:13px;color:var(--muted);z-index:70;
}
.search-suggest.show{display:block}
.search-suggest a{display:block;padding:8px 10px;border-radius:8px;color:var(--text)}
.search-suggest a:hover{background:var(--primary-light);color:var(--primary-dark)}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--primary-dark);
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.icon-btn:hover{background:var(--primary-light);border-color:var(--primary)}
.menu-btn{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(23,70,92,.2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--border);color:var(--primary-dark)}
.btn-ghost:hover{border-color:var(--primary);background:var(--primary-light);color:var(--primary-dark)}
.btn-amber{background:var(--amber);color:#fff}
.btn-amber:hover{background:#C4863B;transform:translateY(-1px)}
.btn-block{width:100%}
.text-link{color:var(--primary);font-weight:600;border-bottom:1px solid transparent;transition:border-color .18s ease,color .18s ease}
.text-link:hover{color:var(--primary-dark);border-bottom-color:var(--primary-dark)}

/* ---------- shared ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:999px;background:var(--primary-light);color:var(--primary-dark);
  font-size:12px;font-weight:600;line-height:1.6;letter-spacing:.2px;
}
.badge-amber{background:#FBF0E1;color:#8C5E22}
.badge-teal{background:#E6F3F2;color:#2C6B67}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#CBDFE8}
.section{padding:88px 0}
.section-tight{padding:64px 0}
@media (max-width:768px){.section{padding:60px 0}.section-tight{padding:48px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
@media (max-width:768px){.section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}}
.eyebrow{font-size:13px;font-weight:600;color:var(--primary);letter-spacing:1px;margin-bottom:10px}
.h2{font-size:clamp(1.6rem,3vw,2.15rem);font-weight:700;line-height:1.35;color:var(--text)}
.lede{color:var(--muted);font-size:16px;line-height:1.85;max-width:62ch}
.hero-h1{font-size:clamp(2.1rem,4.4vw,3.4rem);line-height:1.24;font-weight:700;letter-spacing:-.5px}
.divider{height:1px;background:var(--border);border:0;margin:0}

/* ---------- hero ---------- */
.hero{position:relative;padding:72px 0 40px;background:
  radial-gradient(900px 420px at 78% -10%, #E9F3F8 0%, rgba(233,243,248,0) 70%), var(--bg);}
.hero-media{position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s ease}
.hero-media:hover img{transform:scale(1.02)}
.hero-stat{
  position:absolute;left:18px;bottom:18px;background:#fff;border-radius:14px;
  border:1px solid var(--border);box-shadow:var(--shadow-lg);padding:12px 16px;
  display:flex;align-items:center;gap:14px;
}
.hero-stat strong{font-size:20px;font-weight:700;color:var(--primary-dark);line-height:1.2;display:block}
.hero-stat span{font-size:12px;color:var(--muted)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--primary-dark);
  background:#fff;border:1px solid var(--border);border-radius:999px;padding:6px 13px;font-weight:500;
}
.tag:hover{border-color:var(--primary);background:var(--primary-light)}
.dot{width:6px;height:6px;border-radius:50%;background:var(--teal);flex:none}

/* ---------- status bar ---------- */
.status-bar{
  background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);
}
.status-inner{display:flex;align-items:center;gap:18px;padding:14px 0;overflow:hidden}
.pulse-dot{width:9px;height:9px;border-radius:50%;background:#3FB68B;flex:none;animation:pulse 2.2s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(63,182,139,.55)}
  70%{box-shadow:0 0 0 9px rgba(63,182,139,0)}
  100%{box-shadow:0 0 0 0 rgba(63,182,139,0)}
}
.status-label{font-size:13px;font-weight:700;color:var(--primary-dark);white-space:nowrap;display:flex;align-items:center;gap:8px}
.status-items{display:flex;gap:28px;font-size:13.5px;color:var(--muted);overflow-x:auto;scrollbar-width:none}
.status-items::-webkit-scrollbar{display:none}
.status-items span{white-space:nowrap}

/* ---------- compare table ---------- */
.cmp-wrap{border:1px solid var(--border);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow);overflow:hidden}
.cmp-scroll{overflow-x:auto}
.cmp{width:100%;min-width:760px;border-collapse:separate;border-spacing:0}
.cmp th,.cmp td{padding:16px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--border);vertical-align:middle}
.cmp thead th{background:#F4F9FC;color:var(--primary-dark);font-weight:700;font-size:15px}
.cmp thead th:first-child{background:#F4F9FC;color:var(--muted);font-weight:600;font-size:13px;letter-spacing:.5px}
.cmp tbody tr:hover{background:#FAFDFE}
.cmp tbody tr:last-child td{border-bottom:0}
.cmp .feature{font-weight:600;color:var(--text);width:24%}
.cmp .col-rec{background:#F7FCFD}
.cmp .yes{color:var(--primary);font-weight:700}
.cmp .no{color:#B8C7CF}
.cell-note{display:block;font-size:13px;color:var(--muted);font-weight:400}

/* ---------- tier cards ---------- */
.tier{border-radius:var(--radius);padding:26px 24px;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.tier:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.tier-rec{border-color:var(--primary);box-shadow:0 14px 36px rgba(46,111,142,.16)}
.tier h3{font-size:1.3rem;font-weight:700}
.tier .price{font-size:26px;font-weight:700;color:var(--primary-dark);line-height:1.2}
.tier .price small{font-size:13px;color:var(--muted);font-weight:400;margin-left:4px}
.tier-list{display:flex;flex-direction:column;gap:9px;font-size:14.5px;color:var(--muted)}
.tier-list li{display:flex;gap:9px;align-items:flex-start}
.tick{width:18px;height:18px;flex:none;margin-top:4px;border-radius:50%;background:var(--primary-light);color:var(--primary-dark);display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:700}

/* ---------- content preview ---------- */
.preview-card{overflow:hidden;display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease}
.preview-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.preview-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.preview-card:hover img{transform:scale(1.02)}
.preview-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.mini-list{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.mini-item{display:block;padding:16px 20px;border-bottom:1px solid var(--border);transition:background .18s ease}
.mini-item:last-child{border-bottom:0}
.mini-item:hover{background:var(--primary-light)}
.mini-item h3{font-size:15px;font-weight:600;line-height:1.6}
.mini-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);margin-top:6px}

/* ---------- stats ---------- */
.stat-band{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:32px 24px}
.stat-num{font-size:2rem;font-weight:700;color:var(--primary-dark);line-height:1.2}
.stat-label{font-size:14px;color:var(--muted);margin-top:6px}

/* ---------- latest / cms ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media (max-width:1024px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.news-grid{grid-template-columns:1fr}}
.news-card{display:flex;flex-direction:column;gap:10px;padding:24px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.news-card h3{font-size:1.05rem;font-weight:600;line-height:1.55}
.news-card p{font-size:14px;color:var(--muted);line-height:1.75}
.empty-state{
  border:1px dashed #C7D8E2;border-radius:var(--radius);background:#FBFDFE;
  padding:44px 24px;text-align:center;color:var(--muted);font-size:15px;
}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
.faq-item:hover{border-color:#C9DDE7}
.faq-item.open{border-color:var(--primary);box-shadow:var(--shadow)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  padding:18px 20px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-q h3{font-size:16px;font-weight:600;margin:0}
.faq-icon{
  width:26px;height:26px;flex:none;border-radius:50%;background:var(--primary-light);color:var(--primary-dark);
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;line-height:1;
  transition:transform .2s ease,background .2s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-item.open .faq-a{max-height:360px}
.faq-a-inner{
  padding:0 22px 18px 22px;font-size:15px;color:var(--muted);line-height:1.85;
}
.faq-item.open .faq-a-inner{box-shadow:inset 3px 0 0 var(--primary);padding-left:25px}

/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(120deg,#EAF3F8 0%,#F6FAFC 60%,#FBF4E9 100%);
  border:1px solid #D9E7EF;border-radius:20px;padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
@media (max-width:900px){.cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:22px}}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:520px){.cta-actions{width:100%}.cta-actions .btn{width:100%}}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--border);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding:64px 0 40px}
@media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 28px}}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--muted)}
.footer-links a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.footer-note{font-size:13.5px;color:var(--muted);line-height:1.8;max-width:26ch}
.sub-form{display:flex;gap:8px;margin-top:14px}
.sub-form input{
  flex:1;min-width:0;height:44px;padding:0 14px;border:1px solid var(--border);border-radius:10px;
  font-size:14px;color:var(--text);background:#fff;transition:border-color .18s ease,box-shadow .18s ease;
}
.sub-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,111,142,.13)}
.help-text{font-size:12.5px;color:#8598A3;margin-top:8px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;border-top:1px solid var(--border);font-size:13px;color:var(--muted);flex-wrap:wrap;
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:var(--primary-dark);font-weight:600}
.to-top:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}

/* ---------- mobile drawer ---------- */
.mobile-panel{
  display:none;border-top:1px solid var(--border);background:#fff;padding:16px 0 22px;
}
.mobile-panel.show{display:block}
.mobile-nav{display:flex;flex-direction:column;gap:4px}
.mobile-nav a{padding:12px 12px;border-radius:10px;font-size:15px;color:var(--muted);min-height:44px;display:flex;align-items:center}
.mobile-nav a:hover,.mobile-nav a[aria-current="page"]{background:var(--primary-light);color:var(--primary-dark);font-weight:600}
.mobile-search{display:flex;gap:8px;margin:12px 0 16px}
.mobile-search input{
  flex:1;height:44px;padding:0 14px;border:1px solid var(--border);border-radius:10px;font-size:14px;background:#F3F7FA;
}
.mobile-search input:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(46,111,142,.13)}

@media (max-width:1023px){
  .nav-list,.header-right .search-box,.header-right .btn,.header-right .icon-btn{display:none}
  .menu-btn{display:inline-flex}
}

/* roulang page: category1 */
:root{
  --brand:#2E6F8E;
  --brand-deep:#17465C;
  --brand-soft:#EAF3F8;
  --teal:#7FB7B2;
  --amber:#D99A4E;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --ink:#1B2A33;
  --muted:#5B6B75;
  --line:#DCE7ED;
  --shadow:0 12px 32px rgba(23,70,92,.08);
  --shadow-hover:0 16px 40px rgba(23,70,92,.12);
  --radius:16px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--bg);color:var(--ink);
  font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;color:inherit;}
input{font:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section-tight{padding:64px 0;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:var(--brand-deep);letter-spacing:.2px;
  flex:0 0 auto;
}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--teal));
  color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700;
  box-shadow:0 6px 14px rgba(46,111,142,.22);
}
.nav-list{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  padding:8px 13px;border-radius:9px;font-size:14.5px;color:var(--muted);
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand-deep);background:var(--brand-soft);}
.nav-link:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,111,142,.25);}
.nav-link[aria-current="page"]{color:var(--brand-deep);background:var(--brand-soft);font-weight:600;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:280px;height:40px;padding:0 10px;
  background:#F1F6F9;border:1px solid var(--line);border-radius:10px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search-box:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(46,111,142,.14);}
.search-box svg{flex:0 0 auto;color:var(--muted);}
.search-box input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:#8FA2AD;}
.kbd{
  flex:0 0 auto;font-size:11px;line-height:1;padding:4px 6px;
  border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--muted);
}
.icon-btn{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);background:#fff;color:var(--brand-deep);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.icon-btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,111,142,.25);}
.nav-toggle{display:none;}
.mobile-panel{display:none;border-top:1px solid var(--line);padding:16px 0 20px;background:#fff;}
.mobile-panel.open{display:block;}
.mobile-panel .search-box{width:100%;margin-bottom:12px;background:#F1F6F9;}
.mobile-nav{display:flex;flex-direction:column;gap:4px;}
.mobile-nav a{padding:12px 12px;border-radius:10px;font-size:15px;color:var(--muted);}
.mobile-nav a:hover{background:var(--brand-soft);color:var(--brand-deep);}
.mobile-nav a[aria-current="page"]{background:var(--brand-soft);color:var(--brand-deep);font-weight:600;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:10px;
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(46,111,142,.18);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 10px 24px rgba(23,70,92,.22);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-deep);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 15px;font-size:14px;border-radius:9px;}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,111,142,.3);}
.btn-block{width:100%;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14.5px;font-weight:600;
  border-bottom:1px solid transparent;transition:border-color .18s ease,color .18s ease;
}
.link-more:hover{color:var(--brand-deep);border-bottom-color:var(--brand-deep);}

/* ---------- 通用组件 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  font-size:12.5px;line-height:1.6;padding:4px 11px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-deep);
}
.tag-outline{background:#fff;border:1px solid var(--line);color:var(--muted);}
.badge{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12.5px;font-weight:600;line-height:1.6;
  padding:3px 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-deep);
}
.badge-amber{background:#FBF1E4;color:#9A6620;}
.badge-teal{background:#E9F4F3;color:#2F6F69;}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9DCE6;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  letter-spacing:.06em;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--teal);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(1.6rem,3vw,2.15rem);font-weight:700;color:var(--brand-deep);
  line-height:1.4;letter-spacing:-.01em;margin:14px 0 12px;
}
.section-head p{color:var(--muted);font-size:15.5px;line-height:1.85;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--muted);padding:18px 0 0;
}
.breadcrumb a{transition:color .18s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#B7C7D1;}
.breadcrumb .current{color:var(--muted);}

/* ---------- Hero 横幅 ---------- */
.hero-banner{
  background:linear-gradient(180deg,#FFFFFF 0%,#F3F8FB 100%);
  border-bottom:1px solid var(--line);
  padding-bottom:64px;
}
.hero-grid{
  display:grid;grid-template-columns:1.15fr .85fr;
  gap:48px;align-items:center;padding-top:36px;
}
.hero-grid h1{
  font-size:clamp(2.1rem,4.4vw,3.1rem);
  font-weight:700;line-height:1.28;letter-spacing:-.02em;
  color:var(--brand-deep);margin:16px 0 18px;
}
.hero-grid .lead{font-size:16.5px;line-height:1.9;color:var(--muted);max-width:38em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:18px;margin-top:28px;}
.hero-tags li{
  display:flex;align-items:center;gap:7px;
  font-size:13.5px;color:var(--muted);
}
.hero-tags li svg{color:var(--teal);flex:0 0 auto;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:20px;border:1px solid var(--line);
  box-shadow:0 18px 44px rgba(23,70,92,.12);
}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:0 16px 36px rgba(23,70,92,.12);
  padding:14px 18px;display:flex;gap:20px;
}
.hero-float .stat-num{font-size:20px;font-weight:700;color:var(--brand-deep);line-height:1.2;}
.hero-float .stat-label{font-size:12.5px;color:var(--muted);margin-top:2px;}
.hero-float .divider{width:1px;background:var(--line);}

/* ---------- 权益对比矩阵 ---------- */
.matrix-wrap{
  background:#fff;border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow);overflow:hidden;
}
.matrix-scroll{overflow-x:auto;}
.matrix{min-width:860px;}
.m-row{
  display:grid;grid-template-columns:1.35fr repeat(3,minmax(150px,1fr));
  border-top:1px solid var(--line);
  transition:background .18s ease;
}
.m-row:first-child{border-top:0;}
.m-row:not(.m-head):hover{background:#FAFCFD;}
.m-cell{
  padding:16px 20px;font-size:14.5px;
  display:flex;align-items:center;gap:8px;
  border-left:1px solid #EFF4F7;
}
.m-cell:first-child{border-left:0;}
.m-cell.m-label{color:var(--muted);font-size:14.5px;}
.m-head .m-cell{
  flex-direction:column;align-items:flex-start;gap:8px;
  padding:24px 20px;background:#FBFDFE;
  border-left:1px solid #EFF4F7;
}
.m-head .m-cell:first-child{background:#FBFDFE;justify-content:center;}
.m-head-title{font-size:16px;font-weight:700;color:var(--brand-deep);}
.m-head-note{font-size:13px;color:var(--muted);line-height:1.7;}
.m-head .m-cell.is-featured{background:var(--brand-soft);}
.m-head .m-cell.is-featured .m-head-title{color:var(--brand-deep);}
.yes{color:var(--brand);font-weight:700;}
.no{color:#B9C9D2;}
.cell-text{font-size:14px;color:var(--ink);}
.cell-sub{font-size:12.5px;color:var(--muted);}

/* ---------- 等级卡片 ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:start;}
.tier-card{padding:28px 26px;position:relative;}
.tier-grid .tier-card:nth-child(2){margin-top:24px;}
.tier-grid .tier-card:nth-child(3){margin-top:48px;}
.tier-card.is-featured{border-color:#BBDDEB;box-shadow:0 16px 40px rgba(46,111,142,.14);}
.tier-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px;}
.tier-name{font-size:19px;font-weight:700;color:var(--brand-deep);}
.tier-desc{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:18px;}
.tier-list{display:flex;flex-direction:column;gap:11px;margin-bottom:22px;}
.tier-list li{display:flex;gap:9px;font-size:14.5px;color:var(--ink);line-height:1.7;}
.tier-list li svg{flex:0 0 auto;margin-top:4px;color:var(--teal);}
.tier-card .link-more{font-size:14px;}

/* ---------- 服务保障 ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.guard-card{padding:24px 22px;}
.guard-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);margin-bottom:14px;
}
.guard-card h3{font-size:16px;font-weight:700;color:var(--brand-deep);margin-bottom:8px;}
.guard-card p{font-size:14px;color:var(--muted);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:#C9DCE6;}
.faq-item.open{border-color:#BBDDEB;box-shadow:0 12px 30px rgba(23,70,92,.08);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;background:none;border:0;text-align:left;
  border-left:3px solid transparent;transition:border-color .2s ease,background .2s ease;
}
.faq-item.open .faq-q{border-left-color:var(--brand);background:#FBFDFE;padding-left:19px;}
.faq-q h3{font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.6;}
.faq-item.open .faq-q h3{color:var(--brand-deep);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-deep);
  font-size:16px;font-weight:700;line-height:1;
  transition:background .2s ease,color .2s ease;
}
.faq-item.open .faq-icon{background:var(--brand);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-item.open .faq-a{max-height:340px;}
.faq-a-inner{padding:0 22px 20px 22px;font-size:14.8px;color:var(--muted);line-height:1.85;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-soft);
  border:1px solid #D5E7F0;border-radius:20px;
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(1.35rem,2.6vw,1.75rem);font-weight:700;color:var(--brand-deep);line-height:1.45;}
.cta-band p{font-size:14.5px;color:var(--muted);margin-top:10px;max-width:44em;line-height:1.8;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#fff;border-top:1px solid var(--line);
  padding:64px 0 24px;margin-top:80px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px;}
.footer-title{font-size:15px;font-weight:600;color:var(--brand-deep);margin:0 0 14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14.5px;color:var(--muted);transition:color .18s ease;}
.footer-links a:hover{color:var(--brand);text-decoration:underline;}
.footer-note{font-size:14px;color:var(--muted);line-height:1.75;margin:0;}
.sub-form{display:flex;gap:8px;margin-top:12px;}
.sub-form input{
  flex:1;min-width:0;height:40px;border-radius:10px;border:1px solid var(--line);
  padding:0 12px;font-size:14px;color:var(--ink);background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.sub-form input::placeholder{color:#8FA2AD;}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,111,142,.15);}
.help-text{font-size:12.5px;color:var(--muted);margin-top:8px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--muted);
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:var(--muted);transition:color .18s ease;}
.to-top:hover{color:var(--brand);}
.mt-4{margin-top:16px;}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .search-box{width:240px;}
}
@media (max-width:1024px){
  .nav-list{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:grid;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-figure{max-width:560px;}
  .hero-float{left:0;}
  .tier-grid{grid-template-columns:1fr 1fr;}
  .tier-grid .tier-card:nth-child(3){margin-top:0;}
  .guard-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px;}
}
@media (max-width:768px){
  .container-x{padding:0 16px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .hero-banner{padding-bottom:48px;}
  .hero-grid{padding-top:20px;}
  .hero-float{position:static;margin-top:16px;left:auto;bottom:auto;}
  .hero-tags{gap:12px;}
  .tier-grid{grid-template-columns:1fr;}
  .tier-grid .tier-card:nth-child(2){margin-top:0;}
  .guard-grid{grid-template-columns:1fr;}
  .cta-band{padding:28px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .matrix{min-width:720px;}
  .site-footer{margin-top:56px;padding-top:48px;}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .header-actions .header-cta{display:none;}
  .faq-q{padding:16px 16px;gap:12px;}
  .faq-item.open .faq-q{padding-left:13px;}
  .faq-a-inner{padding:0 16px 18px 16px;}
}

/* roulang page: article */
:root{
    --primary:#2E6F8E;
    --primary-dark:#17465C;
    --primary-light:#EAF3F8;
    --teal:#7FB7B2;
    --accent:#D99A4E;
    --bg:#F7FAFC;
    --surface:#FFFFFF;
    --text:#1B2A33;
    --muted:#5B6B75;
    --border:#DCE7ED;
    --shadow:0 12px 32px rgba(23,70,92,.08);
    --shadow-lg:0 16px 40px rgba(23,70,92,.12);
    --radius:16px;
    --radius-sm:10px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  html body{
    margin:0;
    padding:0;
    background:var(--bg);
    color:var(--text);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.8;
    font-weight:400;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,figure,blockquote{margin:0;}
  ul,ol{margin:0;padding:0;}
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .18s ease,background .18s ease,border-color .18s ease;}
  button,input,select,textarea{font:inherit;color:inherit;}
  button{cursor:pointer;}
  ::selection{background:#CFE6F1;color:var(--primary-dark);}

  .container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
  @media (max-width:640px){.container-x{padding:0 16px;}}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:600;border:1px solid transparent;
    transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  }
  .btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:9px;}
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(46,111,142,.22);}
  .btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(23,70,92,.26);}
  .btn-primary:active{transform:translateY(0);}
  .btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px #fff,0 0 0 5px rgba(46,111,142,.45);}
  .btn-ghost{background:#fff;color:var(--primary-dark);border-color:var(--border);}
  .btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);}
  .btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 3px var(--primary-light);}

  /* ---------- 徽章 / 标签 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;
    border-radius:999px;background:var(--primary-light);color:var(--primary-dark);
    font-size:12.5px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  }
  .badge-accent{background:#FBF0E1;color:#9A6524;}
  .tag{
    display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:8px;
    background:#fff;border:1px solid var(--border);color:var(--muted);font-size:12.5px;
  }
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.94);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--border);
  }
  .header-inner{display:flex;align-items:center;gap:18px;height:72px;}
  .brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--primary-dark);letter-spacing:.2px;}
  .brand-mark{
    width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
    background:var(--primary-light);color:var(--primary);border:1px solid #CFE3EE;
    font-size:15px;font-weight:700;transition:background .18s ease,color .18s ease,border-color .18s ease;
  }
  .brand:hover .brand-mark{background:var(--primary);color:#fff;border-color:var(--primary);}
  .nav-list{display:flex;align-items:center;gap:2px;margin-left:6px;}
  .nav-link{
    display:inline-flex;align-items:center;height:36px;padding:0 12px;border-radius:999px;
    font-size:14.5px;font-weight:500;color:var(--muted);
  }
  .nav-link:hover{color:var(--primary-dark);background:var(--primary-light);}
  .nav-link[aria-current="page"]{color:var(--primary-dark);background:var(--primary-light);font-weight:600;box-shadow:inset 0 -2px 0 0 var(--primary);}
  .nav-link:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
  .header-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
  .cmd-search{
    display:flex;align-items:center;gap:8px;width:286px;height:40px;padding:0 10px 0 12px;
    background:#F1F5F8;border:1px solid var(--border);border-radius:10px;
    transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
  }
  .cmd-search:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px var(--primary-light);}
  .cmd-search svg{flex:none;color:#8AA3B0;}
  .cmd-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--text);}
  .cmd-search input::placeholder{color:#93A7B2;}
  .cmd-key{flex:none;font-size:11px;color:var(--muted);background:#fff;border:1px solid var(--border);border-radius:6px;padding:1px 6px;}
  .cmd-search--full{width:100%;}
  .icon-btn,.menu-toggle{
    display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--border);
    background:#fff;color:var(--primary-dark);align-items:center;justify-content:center;
    transition:border-color .18s ease,background .18s ease,color .18s ease;
  }
  .icon-btn:hover,.menu-toggle:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);}
  .icon-btn:focus-visible,.menu-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
  .mobile-search,.mobile-panel{display:none;background:#fff;border-top:1px solid var(--border);}
  .mobile-search{padding:12px 0 14px;}
  .mobile-panel{padding:8px 0 14px;}
  .mobile-nav{display:flex;flex-direction:column;gap:4px;}
  .mobile-nav a{display:flex;align-items:center;height:46px;padding:0 12px;border-radius:10px;font-size:15px;color:var(--muted);}
  .mobile-nav a:hover{background:var(--primary-light);color:var(--primary-dark);}
  .mobile-nav a[aria-current="page"]{background:var(--primary-light);color:var(--primary-dark);font-weight:600;}
  .mobile-search.is-open,.mobile-panel.is-open{display:block;}
  @media (max-width:1023px){
    .nav-list,.cmd-search{display:none;}
    .icon-btn,.menu-toggle{display:inline-flex;}
  }
  @media (min-width:1024px){
    .mobile-search,.mobile-panel{display:none !important;}
  }
  @media (max-width:640px){
    .header-inner{height:64px;gap:10px;}
    .brand{font-size:15.5px;}
    .brand-mark{width:29px;height:29px;border-radius:9px;font-size:14px;}
    .header-right .btn-sm{height:38px;padding:0 12px;font-size:13px;}
    .icon-btn,.menu-toggle{width:40px;height:40px;}
  }

  /* ---------- 面包屑 ---------- */
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
  .breadcrumb a{color:var(--muted);}
  .breadcrumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
  .breadcrumb .sep{color:#B9CAD4;}
  .breadcrumb .current{color:#7A8C97;max-width:44ch;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

  /* ---------- 文章头部 ---------- */
  .article-hero{
    padding:26px 0 42px;
    background:linear-gradient(180deg,#EFF7FB 0%,#F7FAFC 100%);
    border-bottom:1px solid var(--border);
  }
  .article-wrap{max-width:860px;margin:0 auto;}
  .article-head{margin-top:20px;}
  .article-head h1{
    font-size:clamp(1.9rem,4vw,2.55rem);
    line-height:1.38;font-weight:700;color:var(--primary-dark);
    margin:16px 0 18px;letter-spacing:-.2px;overflow-wrap:break-word;
  }
  .meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;font-size:13.5px;color:var(--muted);}
  .meta-dot{width:4px;height:4px;border-radius:50%;background:#B9CAD4;flex:none;}
  .meta-strong{color:var(--primary-dark);font-weight:600;}

  /* ---------- 正文 ---------- */
  .article-main{padding:48px 0 8px;}
  .article-card{
    background:var(--surface);border:1px solid var(--border);border-radius:20px;
    box-shadow:var(--shadow);padding:46px 48px;
  }
  .article-body{font-size:17px;line-height:1.9;color:#22323C;overflow-wrap:break-word;}
  .article-body p{margin:0 0 1.15em;}
  .article-body > p:first-of-type{font-size:18px;color:#20313C;line-height:1.85;}
  .article-body h2{
    position:relative;font-size:1.5rem;font-weight:700;color:var(--primary-dark);
    line-height:1.55;margin:2em 0 .8em;padding-left:15px;
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:4px;
    border-radius:2px;background:var(--primary);
  }
  .article-body h3{font-size:1.18rem;font-weight:700;color:var(--primary-dark);margin:1.6em 0 .6em;}
  .article-body h4{font-size:1.05rem;font-weight:600;color:var(--primary-dark);margin:1.3em 0 .5em;}
  .article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
  .article-body a:hover{color:var(--primary-dark);}
  .article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;}
  .article-body li{margin:.35em 0;}
  .article-body ul li::marker{color:var(--primary);}
  .article-body ol li::marker{color:var(--primary);font-weight:600;}
  .article-body blockquote{
    margin:1.6em 0;padding:16px 22px;background:var(--primary-light);
    border-left:4px solid var(--primary);border-radius:0 12px 12px 0;color:#26404E;
  }
  .article-body blockquote p:last-child{margin-bottom:0;}
  .article-body img{border-radius:12px;margin:1.4em 0;width:100%;height:auto;}
  .article-body figure{margin:1.5em 0;}
  .article-body figure img{margin:0;}
  .article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
  .article-body table{width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto;margin:1.4em 0;}
  .article-body th,.article-body td{border:1px solid var(--border);padding:10px 14px;text-align:left;min-width:120px;}
  .article-body th{background:var(--primary-light);color:var(--primary-dark);font-weight:600;}
  .article-body hr{border:0;border-top:1px solid var(--border);margin:2em 0;}
  .article-body code{background:#F1F5F8;border-radius:6px;padding:1px 6px;font-size:.92em;color:var(--primary-dark);}
  .article-body strong{color:#16242D;}
  .article-foot{
    margin-top:38px;padding-top:22px;border-top:1px solid var(--border);
    display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  }
  .back-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14.5px;}
  .back-link:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:4px;}
  .back-link:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px;}
  .article-foot .note{font-size:13px;color:var(--muted);}

  /* ---------- 空态 ---------- */
  .empty-state{
    text-align:center;padding:60px 22px;border:1px dashed var(--border);
    border-radius:16px;background:#FBFDFE;
  }
  .empty-title{font-size:1.25rem;font-weight:700;color:var(--primary-dark);}
  .empty-text{max-width:44ch;margin:10px auto 22px;font-size:15px;color:var(--muted);}

  /* ---------- 相关推荐 ---------- */
  .rec-section{padding:58px 0 20px;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px;flex-wrap:wrap;}
  .section-head h2{font-size:1.5rem;font-weight:700;color:var(--primary-dark);line-height:1.5;}
  .section-head .sub{font-size:14px;color:var(--muted);margin-top:6px;}
  .text-link{color:var(--primary);font-size:14px;font-weight:600;}
  .text-link:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:4px;}
  .rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .card{
    display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
    border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#C9DDE8;}
  .card:focus-within{border-color:var(--primary);}
  .card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDF3F7;}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
  .card:hover .card-media img{transform:scale(1.02);}
  .card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .card-title{font-size:1.03rem;font-weight:700;line-height:1.6;color:var(--primary-dark);}
  .card-title a:hover{color:var(--primary);}
  .card-desc{font-size:14px;color:var(--muted);line-height:1.75;}
  .card-meta{margin-top:auto;padding-top:10px;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);}
  @media (max-width:900px){.rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (max-width:640px){.rec-grid{grid-template-columns:1fr;gap:18px;}}

  /* ---------- CTA ---------- */
  .cta-band{
    display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
    background:var(--primary-light);border:1px solid #D3E6F0;border-radius:20px;
    padding:34px 38px;margin:52px 0 76px;
  }
  .cta-band h2{font-size:1.4rem;font-weight:700;color:var(--primary-dark);line-height:1.5;}
  .cta-band p{margin-top:6px;font-size:14.5px;color:#3E5C6B;}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
  @media (max-width:640px){
    .cta-band{padding:26px 20px;margin:40px 0 56px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{flex:1;}
  }

  /* ---------- 页脚 ---------- */
  .site-footer{background:#fff;border-top:1px solid var(--border);padding:56px 0 24px;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.25fr;gap:34px;}
  .footer-title{font-size:13px;font-weight:700;color:var(--primary-dark);letter-spacing:.05em;margin-bottom:12px;}
  .footer-links{display:flex;flex-direction:column;gap:9px;font-size:14px;color:var(--muted);}
  .footer-links a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
  .footer-note{font-size:13.5px;color:var(--muted);line-height:1.8;}
  .sub-form{display:flex;gap:8px;margin-top:12px;}
  .sub-form input{
    flex:1;min-width:0;height:40px;padding:0 12px;border-radius:10px;
    border:1px solid var(--border);background:#F9FCFD;font-size:14px;color:var(--text);
    transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
  }
  .sub-form input::placeholder{color:#9BAFB9;}
  .sub-form input:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px var(--primary-light);}
  .sub-form .btn{flex:none;}
  .help-text{font-size:12px;color:var(--muted);margin-top:8px;}
  .footer-bottom{
    margin-top:42px;padding-top:18px;border-top:1px solid var(--border);
    display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:13px;color:var(--muted);
  }
  .to-top{display:inline-flex;align-items:center;gap:6px;color:var(--muted);}
  .to-top:hover{color:var(--primary);}
  @media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px;}}
  @media (max-width:640px){
    .site-footer{padding:44px 0 20px;}
    .footer-grid{grid-template-columns:1fr;gap:26px;}
    .sub-form{flex-wrap:nowrap;}
  }

  @media (max-width:768px){
    .article-hero{padding:18px 0 32px;}
    .article-card{padding:26px 20px;border-radius:16px;}
    .article-body{font-size:16.5px;line-height:1.88;}
    .article-body > p:first-of-type{font-size:17px;}
    .article-body h2{font-size:1.32rem;}
    .article-main{padding:34px 0 4px;}
    .rec-section{padding:44px 0 12px;}
  }

/* roulang page: category2 */
:root{
    --brand:#2E6F8E;
    --brand-dark:#17465C;
    --brand-light:#EAF3F8;
    --teal:#7FB7B2;
    --accent:#D99A4E;
    --bg:#F7FAFC;
    --surface:#FFFFFF;
    --text:#1B2A33;
    --muted:#5B6B75;
    --border:#DCE7ED;
    --shadow:0 12px 32px rgba(23,70,92,.08);
    --shadow-lg:0 16px 40px rgba(23,70,92,.12);
    --radius:16px;
    --radius-sm:10px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
  body{
    margin:0;background:var(--bg);color:var(--text);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,figure{margin:0}
  img{display:block;max-width:100%}
  a{color:inherit;text-decoration:none}
  button{font:inherit}
  ul{margin:0;padding:0;list-style:none}

  .container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
  .h1-page{font-size:clamp(2.2rem,4.6vw,3.2rem);line-height:1.24;font-weight:700;color:var(--brand-dark);letter-spacing:-.01em}
  .h2-sec{font-size:clamp(1.5rem,2.6vw,2rem);line-height:1.35;font-weight:700;color:var(--brand-dark)}
  .h3-card{font-size:1.2rem;line-height:1.45;font-weight:700;color:var(--brand-dark)}
  .text-muted{color:var(--muted)}
  .section{margin-top:88px}

  /* ---------- 顶部导航 ---------- */
  .site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);border-bottom:1px solid var(--border);backdrop-filter:blur(8px)}
  .header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
  .brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--brand-dark);font-size:17px;letter-spacing:.2px;transition:color .18s ease}
  .brand:hover{color:var(--brand)}
  .brand-mark{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;flex:none}
  .nav-list{display:flex;align-items:center;gap:2px;margin-left:6px}
  .nav-link{position:relative;padding:8px 12px;border-radius:9px;font-size:14.5px;color:var(--muted);transition:color .18s ease,background .18s ease}
  .nav-link:hover{color:var(--brand-dark);background:var(--brand-light)}
  .nav-link:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,111,142,.22)}
  .nav-link[aria-current="page"]{color:var(--brand-dark);font-weight:600;background:var(--brand-light)}
  .search-wrap{display:flex;align-items:center;gap:8px;width:280px;height:40px;margin-left:auto;padding:0 10px 0 12px;background:#F1F6F9;border:1px solid var(--border);border-radius:var(--radius-sm);transition:border-color .18s ease,box-shadow .18s ease}
  .search-wrap:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,111,142,.14)}
  .search-wrap svg{flex:none;color:#8AA3B0}
  .search-wrap input{width:100%;border:none;background:transparent;outline:none;font-size:14px;color:var(--text)}
  .search-wrap input::placeholder{color:#93A5B0}
  .kbd{flex:none;font-size:11px;color:var(--muted);background:#fff;border:1px solid var(--border);border-radius:5px;padding:1px 5px;white-space:nowrap}
  .nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;margin-left:auto;border-radius:var(--radius-sm);border:1px solid var(--border);background:#fff;color:var(--brand-dark);cursor:pointer;transition:border-color .18s,color .18s}
  .nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

  /* ---------- 按钮 ---------- */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border:1px solid transparent;border-radius:var(--radius-sm);font-size:14.5px;font-weight:600;cursor:pointer;white-space:nowrap;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}
  .btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,111,142,.26)}
  .btn-primary{background:var(--brand);color:#fff}
  .btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px)}
  .btn-ghost{background:#fff;color:var(--brand-dark);border-color:var(--border)}
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
  .btn-sm{height:38px;padding:0 16px;font-size:13.5px}

  /* ---------- 徽章 / 标签 ---------- */
  .badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:999px;background:var(--brand-light);color:var(--brand-dark);font-size:12.5px;font-weight:600;line-height:1.7}
  .badge-accent{background:#FBF0E1;color:#96631F}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px}
  .tag{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:var(--brand-light);color:var(--brand-dark);font-size:13px}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
  .breadcrumb a{transition:color .18s ease}
  .breadcrumb a:hover{color:var(--brand-dark)}
  .breadcrumb .sep{color:#B7C8D2}

  /* ---------- Hero ---------- */
  .hero-sub{font-size:1.02rem;color:var(--muted);line-height:1.85;max-width:56ch}
  .stat{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:16px 12px;text-align:center;box-shadow:var(--shadow)}
  .stat-num{display:block;font-size:26px;font-weight:700;line-height:1.2;color:var(--brand)}
  .stat-label{display:block;margin-top:4px;font-size:12.5px;color:var(--muted)}

  /* ---------- 筛选 ---------- */
  .filter-bar{display:flex;flex-wrap:wrap;gap:8px}
  .chip{display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;border:1px solid var(--border);background:#fff;font-size:14px;color:var(--muted);cursor:pointer;transition:all .18s ease}
  .chip:hover{border-color:var(--brand);color:var(--brand)}
  .chip:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,111,142,.2)}
  .chip.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

  /* ---------- 卡片 ---------- */
  .card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
  .img-wrap{display:block;overflow:hidden;background:#EAF0F4}
  .cover-img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .32s ease}
  .card:hover .cover-img{transform:scale(1.02)}
  .card-title-link{transition:color .18s ease}
  .card-title-link:hover{color:var(--brand)}
  .card-desc{font-size:14.5px;line-height:1.75;color:var(--muted)}
  .card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
  .dot{width:4px;height:4px;border-radius:50%;background:#B7C8D2;flex:none}

  /* ---------- 右侧推荐列表 ---------- */
  .list-head{font-size:14px;font-weight:700;color:var(--brand-dark);padding:6px 8px 12px;border-bottom:1px solid var(--border)}
  .mini-item{display:flex;gap:14px;padding:14px 8px;border-radius:12px;transition:background .18s ease}
  .mini-item:hover{background:var(--brand-light)}
  .mini-item:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,111,142,.2)}
  .mini-thumb{width:84px;height:84px;border-radius:10px;object-fit:cover;flex:none;background:#EAF0F4}
  .mini-title{font-size:14.5px;font-weight:600;line-height:1.55;color:var(--text);margin-top:6px;transition:color .18s ease}
  .mini-item:hover .mini-title{color:var(--brand)}
  .mini-meta{display:block;margin-top:6px;font-size:12.5px;color:var(--muted)}

  /* ---------- 分页 ---------- */
  .pager{display:flex;justify-content:center;flex-wrap:wrap;gap:8px}
  .pager a,.pager span{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 14px;border:1px solid var(--border);border-radius:var(--radius-sm);background:#fff;font-size:14px;color:var(--muted);transition:all .18s ease}
  .pager a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
  .pager .current{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

  /* ---------- 订阅区 ---------- */
  .cta-band{background:var(--brand-light);border:1px solid #D5E6EF;border-radius:20px;padding:40px;display:grid;grid-template-columns:1.15fr 1fr;gap:32px;align-items:center}
  .sub-form{display:flex;gap:8px}
  .sub-form input{flex:1;min-width:0;height:42px;padding:0 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:#fff;font-size:14px;color:var(--text);outline:none;transition:border-color .18s ease,box-shadow .18s ease}
  .sub-form input::placeholder{color:#93A5B0}
  .sub-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,111,142,.14)}
  .help-text{font-size:12.5px;color:var(--muted);margin-top:8px}

  /* ---------- 页脚 ---------- */
  .site-footer{background:#F0F6F9;border-top:1px solid var(--border);padding:64px 0 0;margin-top:96px}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
  .footer-title{font-size:14px;font-weight:700;color:var(--brand-dark);margin:0 0 14px}
  .footer-links{display:flex;flex-direction:column;gap:10px}
  .footer-links a{font-size:14px;color:var(--muted);width:fit-content;transition:color .18s ease,box-shadow .18s ease}
  .footer-links a:hover{color:var(--brand-dark);box-shadow:inset 0 -1px 0 var(--brand-dark)}
  .footer-note{font-size:14px;line-height:1.75;color:var(--muted);margin:0}
  .footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:48px;padding:20px 0;border-top:1px solid var(--border);font-size:13px;color:var(--muted)}
  .to-top{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand-dark);transition:color .18s ease}
  .to-top:hover{color:var(--brand)}

  @media (max-width:1024px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .cta-band{grid-template-columns:1fr;padding:32px}
  }
  @media (max-width:1023px){
    .nav-list{display:none}
    .search-wrap{display:none}
    .nav-toggle{display:inline-flex}
    .site-header.is-open .header-inner{flex-wrap:wrap;padding-top:12px;padding-bottom:16px}
    .site-header.is-open .nav-list{display:flex;flex-wrap:wrap;width:100%;order:5;margin:12px 0 0;gap:6px}
    .site-header.is-open .search-wrap{display:flex;width:100%;order:6;margin:12px 0 0}
  }
  @media (max-width:640px){
    .container-x{padding:0 16px}
    .section{margin-top:56px}
    .site-footer{margin-top:64px;padding-top:48px}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .cta-band{padding:24px}
    .mini-thumb{width:72px;height:72px}
    .stat-num{font-size:22px}
  }

/* roulang page: category3 */
:root{
    --brand:#2E6F8E;
    --brand-dark:#17465C;
    --brand-light:#EAF3F8;
    --teal:#7FB7B2;
    --amber:#D99A4E;
    --bg:#F7FAFC;
    --surface:#FFFFFF;
    --ink:#1B2A33;
    --muted:#5B6B75;
    --line:#DCE7ED;
    --shadow:0 12px 32px rgba(23,70,92,.08);
    --shadow-lg:0 16px 40px rgba(23,70,92,.12);
    --radius:16px;
    --radius-sm:10px;
    --header-h:72px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--ink);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit;cursor:pointer}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--brand);outline-offset:3px}

  .container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
  @media (max-width:640px){.container-x{padding:0 16px}}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.94);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(6px);
  }
  .header-inner{
    height:var(--header-h);
    display:flex;align-items:center;gap:24px;
  }
  .brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--brand-dark);white-space:nowrap}
  .brand-mark{
    width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
    background:linear-gradient(140deg,var(--brand),var(--brand-dark));
    color:#fff;font-size:15px;font-weight:700;letter-spacing:.5px;
    box-shadow:0 6px 16px rgba(23,70,92,.22);
  }
  .nav-list{display:flex;align-items:center;gap:4px;margin-left:8px}
  .nav-link{
    position:relative;
    display:inline-flex;align-items:center;
    height:38px;padding:0 14px;border-radius:999px;
    font-size:14.5px;color:#41555f;
    transition:color .18s ease,background .18s ease;
  }
  .nav-link:hover{color:var(--brand-dark);background:var(--brand-light)}
  .nav-link[aria-current="page"]{color:var(--brand-dark);font-weight:600;background:var(--brand-light)}
  .nav-link[aria-current="page"]::after{
    content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
    border-radius:2px;background:var(--brand);
  }
  .header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
  .search-box{
    display:flex;align-items:center;gap:8px;
    width:270px;height:40px;padding:0 10px 0 12px;
    background:#F2F6F9;border:1px solid transparent;border-radius:var(--radius-sm);
    color:var(--muted);font-size:13.5px;
    transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
  }
  .search-box:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(46,111,142,.12)}
  .search-box input{
    flex:1;min-width:0;border:0;background:transparent;outline:none;
    font-size:13.5px;color:var(--ink);
  }
  .search-box input::placeholder{color:#93A5AF}
  .kbd{
    font-size:11px;color:#6C808A;background:#fff;border:1px solid var(--line);
    border-radius:6px;padding:1px 6px;line-height:1.5;white-space:nowrap;
  }
  .icon-btn{
    width:40px;height:40px;border-radius:var(--radius-sm);
    display:grid;place-items:center;color:var(--muted);
    border:1px solid var(--line);background:#fff;
    transition:.18s ease;
  }
  .icon-btn:hover{color:var(--brand-dark);border-color:#C6D9E3;transform:translateY(-1px);box-shadow:var(--shadow)}
  .menu-btn{display:none;width:42px;height:42px;border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;color:var(--brand-dark);place-items:center}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:600;border:1px solid transparent;
    transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(46,111,142,.22)}
  .btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(23,70,92,.26)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{background:#fff;color:var(--brand-dark);border-color:var(--line)}
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light);transform:translateY(-1px)}
  .btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:8px}
  .hdr-cta{height:40px;padding:0 18px;font-size:14px;border-radius:var(--radius-sm)}

  .mobile-nav{display:none;border-top:1px solid var(--line);background:#fff}
  .mobile-nav.open{display:block}
  .mobile-nav a{
    display:flex;align-items:center;justify-content:space-between;
    padding:14px 24px;border-bottom:1px solid #EEF4F7;
    font-size:15px;color:#33454F;
  }
  .mobile-nav a[aria-current="page"]{color:var(--brand-dark);font-weight:600;background:var(--brand-light)}
  .mobile-nav .m-cta{margin:14px 24px 18px;display:flex}

  /* ---------- Shared bits ---------- */
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12.5px;font-weight:600;letter-spacing:.02em;
    color:var(--brand-dark);background:var(--brand-light);
    border:1px solid #D5E6EF;border-radius:999px;padding:5px 12px;
  }
  .dot{width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 3px rgba(127,183,178,.24)}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px}
  .tag{
    display:inline-flex;align-items:center;
    padding:4px 11px;border-radius:999px;
    font-size:12.5px;color:#3D6275;
    background:#EFF6FA;border:1px solid #DCEAF2;
  }
  .tag-amber{background:#FCF3E6;border-color:#F0DDC0;color:#95602A}
  .card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    box-shadow:var(--shadow);
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#CFE0E9}
  .sec{padding:80px 0}
  @media (max-width:768px){.sec{padding:56px 0}}
  .sec-head{max-width:720px;margin-bottom:40px}
  .sec-title{font-size:clamp(1.7rem,3vw,2.15rem);font-weight:700;line-height:1.35;color:var(--brand-dark);letter-spacing:-.01em}
  .sec-desc{margin-top:12px;color:var(--muted);font-size:15.5px}
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding-top:22px}
  .crumb a{color:var(--muted)}
  .crumb a:hover{color:var(--brand);text-decoration:underline}
  .crumb .sep{color:#B7C9D3}
  .crumb .current{color:#7A8B95}

  /* ---------- Hero ---------- */
  .hero{padding:34px 0 8px}
  .hero-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:48px;align-items:center}
  .hero h1{
    margin-top:18px;
    font-size:clamp(2.1rem,4.4vw,3.15rem);
    line-height:1.25;font-weight:700;color:var(--brand-dark);letter-spacing:-.015em;
  }
  .hero-sub{margin-top:16px;font-size:16.5px;color:#43565F;max-width:36em}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
  .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:36px;max-width:470px}
  .stat-num{font-size:22px;font-weight:600;color:var(--brand-dark);line-height:1.3}
  .stat-label{font-size:12.5px;color:var(--muted);margin-top:2px}
  .stat-item{padding-left:12px;border-left:2px solid #DDEBF2}
  .hero-figure{position:relative}
  .hero-figure img{
    width:100%;aspect-ratio:4/3;object-fit:cover;
    border-radius:20px;border:1px solid var(--line);
    box-shadow:0 22px 50px rgba(23,70,92,.14);
  }
  .hero-float{
    position:absolute;left:-18px;bottom:-22px;
    background:#fff;border:1px solid var(--line);border-radius:14px;
    box-shadow:var(--shadow);padding:14px 18px;display:flex;gap:18px;
  }
  .hero-float .f-num{font-size:18px;font-weight:600;color:var(--brand-dark);line-height:1.2}
  .hero-float .f-txt{font-size:12px;color:var(--muted)}
  .status-strip{
    display:flex;flex-wrap:wrap;align-items:center;gap:10px;
    margin-top:6px;padding:10px 14px;
    background:#fff;border:1px dashed #CFE1EA;border-radius:12px;
    font-size:13px;color:#4A606B;max-width:520px;
  }

  /* ---------- Scope grid ---------- */
  .scope-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
  .scope-item{padding:28px;display:flex;flex-direction:column;gap:12px}
  .scope-item .idx{
    font-size:12.5px;font-weight:600;color:var(--brand);
    letter-spacing:.08em;
  }
  .scope-item h3{font-size:1.18rem;color:var(--brand-dark);font-weight:700}
  .scope-item p{font-size:14.5px;color:var(--muted);line-height:1.8}
  .s-6{grid-column:span 6}
  .s-4{grid-column:span 4}
  .s-8{grid-column:span 8}

  /* ---------- Steps ---------- */
  .steps-wrap{position:relative;margin-top:8px}
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
  .step{position:relative;padding-top:6px}
  .step-dot{
    width:44px;height:44px;border-radius:50%;
    display:grid;place-items:center;
    background:#fff;border:1px solid #CFE1EA;
    font-size:14px;font-weight:600;color:var(--brand);
    position:relative;z-index:2;
    transition:.18s ease;
  }
  .step:hover .step-dot{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 8px 20px rgba(46,111,142,.24)}
  .step h3{margin-top:16px;font-size:1.08rem;font-weight:700;color:var(--brand-dark)}
  .step p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8}
  .step-line{
    position:absolute;top:28px;left:56px;right:-24px;height:1px;
    background:linear-gradient(90deg,#CFE1EA,#E4EFF4);
  }
  .step:last-child .step-line{display:none}

  /* ---------- Audience ---------- */
  .audience-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;align-items:start}
  .aud-list{display:grid;gap:14px}
  .aud-item{
    display:flex;gap:14px;padding:18px 20px;
    background:#fff;border:1px solid var(--line);border-radius:14px;
    transition:.18s ease;
  }
  .aud-item:hover{border-color:#C9DDE7;box-shadow:var(--shadow)}
  .aud-item .ic{
    flex:none;width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
    background:var(--brand-light);color:var(--brand);
  }
  .aud-item h3{font-size:15.5px;font-weight:600;color:var(--brand-dark)}
  .aud-item p{font-size:13.8px;color:var(--muted);margin-top:3px}
  .panel-soft{
    background:#fff;border:1px solid var(--line);border-radius:20px;
    padding:30px;box-shadow:var(--shadow);
  }
  .panel-soft h3{font-size:1.1rem;color:var(--brand-dark);font-weight:700}
  .check-list{display:grid;gap:12px;margin-top:18px}
  .check-list li{display:flex;gap:10px;font-size:14.5px;color:#40535C;line-height:1.75}
  .check-list svg{flex:none;margin-top:6px;color:var(--teal)}

  /* ---------- Plans ---------- */
  .plan-rows{display:grid;gap:16px}
  .plan-row{
    display:grid;grid-template-columns:200px minmax(0,1fr) auto;
    gap:24px;align-items:center;
    padding:24px 26px;
    background:#fff;border:1px solid var(--line);border-radius:16px;
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .plan-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#C9DDE7}
  .plan-row.featured{border-color:#BBD8E6;background:linear-gradient(180deg,#FBFEFF,#F3FAFD)}
  .plan-name{display:flex;align-items:center;gap:10px;font-size:1.05rem;font-weight:700;color:var(--brand-dark)}
  .plan-meta{font-size:13px;color:var(--muted);margin-top:4px}
  .plan-desc{font-size:14.5px;color:#42555E}
  .plan-desc .tag-row{margin-top:10px}

  /* ---------- Delivery ---------- */
  .deliver-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  .deliver{padding:24px;text-align:left}
  .deliver .num{font-size:26px;font-weight:600;color:var(--brand);line-height:1.2}
  .deliver .lbl{font-size:14px;color:var(--brand-dark);font-weight:600;margin-top:6px}
  .deliver .note{font-size:12.5px;color:var(--muted);margin-top:4px}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:12px;max-width:860px}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
  }
  .faq-item.open{border-color:#BFD9E5;box-shadow:var(--shadow)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;background:transparent;border:0;text-align:left;
    font-size:15.5px;font-weight:600;color:var(--brand-dark);
    position:relative;
  }
  .faq-q::before{
    content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
    background:var(--brand);opacity:0;transition:opacity .2s ease;
  }
  .faq-item.open .faq-q::before{opacity:1}
  .faq-icon{
    flex:none;width:24px;height:24px;border-radius:50%;
    display:grid;place-items:center;background:var(--brand-light);color:var(--brand);
    font-size:16px;line-height:1;transition:transform .2s ease;
  }
  .faq-item.open .faq-icon{transform:rotate(45deg);background:#DCEBF3}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
  .faq-a p{padding:0 22px 20px;font-size:14.5px;color:#465A64;line-height:1.85}

  /* ---------- CTA ---------- */
  .cta-band{
    background:linear-gradient(120deg,#EAF3F8 0%,#F3FAFD 55%,#EFF7F6 100%);
    border:1px solid #D5E6EF;border-radius:22px;
    padding:44px 48px;
    display:flex;align-items:center;justify-content:space-between;gap:32px;
    flex-wrap:wrap;
  }
  .cta-band h2{font-size:clamp(1.4rem,2.4vw,1.8rem);color:var(--brand-dark);font-weight:700;line-height:1.4}
  .cta-band p{margin-top:8px;color:#48606C;font-size:14.5px}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

  /* ---------- Footer ---------- */
  .site-footer{background:#0F2F3F;color:#C4D6E0;margin-top:80px;padding:56px 0 24px}
  .site-footer .brand{color:#fff}
  .site-footer .brand-mark{background:linear-gradient(140deg,#3E8CA9,#215B75);box-shadow:none}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px}
  .footer-title{font-size:13.5px;font-weight:600;color:#fff;letter-spacing:.02em;margin-bottom:14px}
  .footer-links{display:grid;gap:10px}
  .footer-links a{font-size:14px;color:#AFC5D1;transition:color .18s ease}
  .footer-links a:hover{color:#fff;text-decoration:underline}
  .footer-note{font-size:13.5px;color:#9FB6C3;line-height:1.8}
  .site-footer .tag{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:#C7DCE6}
  .sub-form{display:flex;gap:8px;margin-top:12px}
  .sub-form input{
    flex:1;min-width:0;height:38px;padding:0 12px;border-radius:8px;
    background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
    color:#fff;font-size:13.5px;outline:none;
    transition:.18s ease;
  }
  .sub-form input::placeholder{color:#8FABB9}
  .sub-form input:focus{border-color:#6FB4CE;background:rgba(255,255,255,.14)}
  .site-footer .btn-primary{background:#2E6F8E;box-shadow:none}
  .site-footer .btn-primary:hover{background:#3E8CA9}
  .help-text{font-size:12px;color:#89A3B2;margin-top:8px}
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:12.5px;color:#8FA9B7;
  }
  .to-top{display:inline-flex;align-items:center;gap:6px;color:#BBD0DC}
  .to-top:hover{color:#fff}

  /* ---------- Responsive ---------- */
  @media (max-width:1280px){
    .search-box{width:230px}
  }
  @media (max-width:1024px){
    .nav-list{display:none}
    .search-box{display:none}
    .menu-btn{display:grid}
    .hero-grid{grid-template-columns:1fr;gap:36px}
    .hero-figure{max-width:560px}
    .hero-float{position:static;margin-top:16px;left:auto;bottom:auto;display:inline-flex}
    .scope-grid{grid-template-columns:repeat(2,1fr)}
    .s-6,.s-4,.s-8{grid-column:span 1}
    .steps{grid-template-columns:repeat(2,1fr);gap:32px}
    .step-line{display:none}
    .audience-grid{grid-template-columns:1fr}
    .deliver-grid{grid-template-columns:repeat(2,1fr)}
    .plan-row{grid-template-columns:1fr;gap:14px;align-items:flex-start}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  }
  @media (max-width:768px){
    .sec{padding:56px 0}
    .hero h1{font-size:clamp(1.85rem,6vw,2.4rem)}
    .hero-stats{grid-template-columns:1fr 1fr;gap:14px}
    .scope-grid{grid-template-columns:1fr}
    .steps{grid-template-columns:1fr}
    .deliver-grid{grid-template-columns:1fr}
    .cta-band{padding:30px 24px}
    .cta-actions .btn{width:100%}
    .plan-row{padding:20px}
  }
  @media (max-width:640px){
    .header-inner{gap:12px}
    .brand{font-size:15.5px}
    .hdr-cta{display:none}
    .footer-grid{grid-template-columns:1fr}
    .hero-stats{grid-template-columns:1fr}
    .sub-form{flex-wrap:wrap}
    .sub-form .btn{width:100%}
  }

/* roulang page: category4 */
:root{
  --primary:#2E6F8E;
  --primary-dark:#17465C;
  --primary-light:#EAF3F8;
  --teal:#7FB7B2;
  --accent:#D99A4E;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --text:#1B2A33;
  --muted:#5B6B75;
  --line:#DCE7ED;
  --shadow:0 12px 32px rgba(23,70,92,.08);
  --shadow-lg:0 16px 40px rgba(23,70,92,.12);
  --radius:16px;
  --radius-sm:10px;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-dark)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;color:var(--primary-dark);font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

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

/* ------- 顶部导航 ------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:var(--primary-dark);
  letter-spacing:.2px;white-space:nowrap;
}
.brand:hover{color:var(--primary-dark)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--primary);color:#fff;
  display:grid;place-items:center;
  font-size:16px;font-weight:700;
  box-shadow:inset 0 -2px 0 rgba(0,0,0,.14);
  flex:none;
}
.nav-list{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-link{
  display:inline-flex;align-items:center;
  padding:8px 13px;border-radius:999px;
  font-size:14.5px;color:var(--muted);
  transition:color .18s,background .18s;
  white-space:nowrap;
}
.nav-link:hover{color:var(--primary-dark);background:var(--primary-light)}
.nav-link[aria-current="page"]{color:var(--primary-dark);background:var(--primary-light);font-weight:600}
.nav-link:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.header-tools{display:flex;align-items:center;gap:10px}
.nav-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:280px;height:40px;padding:0 10px;
  background:#F1F6F9;border:1px solid transparent;border-radius:10px;
  transition:background .18s,border-color .18s,box-shadow .18s;
}
.nav-search:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,111,142,.14)}
.nav-search svg{color:#8AA0AC;flex:none}
.nav-search input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;
  font-size:14px;color:var(--text);outline:none;
}
.nav-search input::placeholder{color:#94A6B0}
.kbd{
  font-size:11px;color:#7A8D98;background:#fff;
  border:1px solid var(--line);border-radius:6px;
  padding:1px 5px;line-height:1.5;flex:none;
}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  display:none;place-items:center;
  color:var(--primary-dark);border:1px solid var(--line);background:#fff;
  transition:border-color .18s,color .18s,background .18s;
}
@media (min-width:1200px){.icon-btn{display:grid}}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.hamburger{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;color:var(--primary-dark);
  cursor:pointer;transition:border-color .18s,background .18s;
}
.hamburger:hover{border-color:var(--primary);background:var(--primary-light)}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 24px 22px}
.mobile-panel.open{display:block}
.mobile-panel .nav-list{flex-direction:column;align-items:stretch;gap:2px;justify-content:flex-start}
.mobile-panel .nav-link{padding:12px 14px;border-radius:10px;font-size:15px}
.mobile-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;
  background:#F1F6F9;border:1px solid var(--line);border-radius:10px;margin-bottom:12px;
}
.mobile-search input{flex:1;min-width:0;border:0;background:transparent;font-size:14px;outline:none;color:var(--text)}
.mobile-cta{margin-top:12px;display:block;text-align:center}

/* ------- 按钮 ------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s,box-shadow .18s,background .18s,color .18s,border-color .18s;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(46,111,142,.22)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px rgba(23,70,92,.24)}
.btn-ghost{background:#fff;color:var(--primary-dark);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ------- 顶部状态条 ------- */
.status-strip{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
  padding:20px 0 18px;
}
.status-dot{width:8px;height:8px;border-radius:50%;background:#3EA37A;box-shadow:0 0 0 4px rgba(62,163,122,.14);flex:none}
.status-sep{width:1px;height:12px;background:var(--line)}

/* ------- Hero ------- */
.hero-panel{
  display:grid;grid-template-columns:1.28fr .72fr;gap:36px;
  background:var(--primary-light);
  border:1px solid #D8E8F1;border-radius:22px;
  padding:42px;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;color:var(--primary-dark);
  border:1px solid #D8E8F1;border-radius:999px;
  padding:5px 13px;font-size:12.5px;font-weight:600;
  margin-bottom:18px;
}
.hero-badge .badge-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none}
.hero-title{
  font-size:clamp(2.1rem,4.4vw,3.1rem);
  letter-spacing:-.4px;line-height:1.28;
  color:var(--primary-dark);
}
.hero-sub{
  margin-top:16px;font-size:16px;line-height:1.85;
  color:#3D5A69;max-width:56ch;
}
.hero-search{display:flex;gap:10px;margin-top:24px;max-width:540px}
.input{
  width:100%;height:48px;padding:0 14px;
  font-size:15px;color:var(--text);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:border-color .18s,box-shadow .18s;
}
.input::placeholder{color:#94A6B0}
.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,111,142,.14)}
.help-text{font-size:12.5px;color:var(--muted);margin-top:8px}

.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  color:var(--primary-dark);font-size:12.5px;line-height:1.6;
  transition:border-color .18s,background .18s,color .18s,transform .18s;
}
.tag:hover{border-color:var(--primary);background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px)}
.tag-accent{background:#FCF3E7;border-color:#F0DCC2;color:#8A5C1E}
.mt-4{margin-top:16px}

.hero-figure{position:relative;align-self:stretch}
.hero-figure img{
  width:100%;height:100%;min-height:270px;
  object-fit:cover;border-radius:var(--radius);
  border:1px solid #fff;box-shadow:var(--shadow);
}
.stat-card{
  position:absolute;left:-16px;bottom:-18px;
  background:#fff;border-radius:14px;
  box-shadow:var(--shadow-lg);
  padding:14px 18px;display:flex;gap:20px;align-items:center;
}
.stat-num{font-size:20px;font-weight:700;color:var(--primary-dark);line-height:1.2}
.stat-label{font-size:12px;color:var(--muted);margin-top:2px}
.stat-split{width:1px;height:28px;background:var(--line)}

/* ------- 板块 ------- */
.section{padding:76px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:26px}
.section-title{font-size:clamp(1.5rem,2.6vw,2.05rem);letter-spacing:-.2px}
.section-sub{margin-top:10px;font-size:14.5px;color:var(--muted);max-width:62ch}
.section-link{
  font-size:14px;font-weight:600;color:var(--primary);
  border-bottom:1px solid transparent;transition:border-color .18s,color .18s;
}
.section-link:hover{color:var(--primary-dark);border-color:var(--primary-dark)}

/* ------- 快捷主题 ------- */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.quick-card{
  display:block;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);
  transition:transform .18s,box-shadow .18s,border-color .18s;
}
.quick-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#C4DCE8}
.quick-icon{
  width:42px;height:42px;border-radius:12px;
  background:var(--primary-light);color:var(--primary);
  display:grid;place-items:center;margin-bottom:14px;
}
.quick-title{font-size:16px;color:var(--primary-dark);margin-bottom:6px}
.quick-desc{font-size:13.5px;color:var(--muted);line-height:1.75}
.quick-more{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;font-size:13px;font-weight:600;color:var(--primary);
}

/* ------- FAQ ------- */
.faq-layout{display:grid;grid-template-columns:280px 1fr;gap:36px;align-items:start}
.faq-aside{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);
}
.faq-aside-title{font-size:14px;font-weight:700;color:var(--primary-dark);margin-bottom:12px}
.faq-aside-list{display:flex;flex-direction:column;gap:6px}
.faq-aside-list a{
  display:flex;justify-content:space-between;gap:10px;
  font-size:13.5px;color:var(--muted);
  padding:9px 11px;border-radius:9px;
  transition:background .18s,color .18s;
}
.faq-aside-list a:hover{background:var(--primary-light);color:var(--primary-dark)}
.faq-aside-note{
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:12.5px;color:var(--muted);line-height:1.75;
}
.faq-group{margin-bottom:34px}
.faq-group:last-child{margin-bottom:0}
.faq-group-head{display:flex;align-items:baseline;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.group-index{
  font-size:12.5px;font-weight:700;color:var(--primary);
  background:var(--primary-light);border-radius:999px;padding:3px 10px;
}
.group-title{font-size:1.35rem;color:var(--primary-dark)}
.group-desc{font-size:13.5px;color:var(--muted)}

.faq-item{
  position:relative;background:#fff;
  border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;
  box-shadow:0 6px 18px rgba(23,70,92,.05);
  transition:border-color .18s,box-shadow .18s;
}
.faq-item:hover{border-color:#C9DFE9;box-shadow:0 10px 26px rgba(23,70,92,.08)}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--primary);opacity:0;transition:opacity .2s;
}
.faq-item.open::before{opacity:1}
.faq-heading{margin:0}
.faq-q{
  display:flex;width:100%;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);
  transition:color .18s;
}
.faq-item.open .faq-q,.faq-q:hover{color:var(--primary-dark)}
.faq-icon{
  position:relative;width:22px;height:22px;border-radius:50%;
  background:var(--primary-light);flex:none;transition:background .18s;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--primary);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:transform .2s,opacity .2s}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .2s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a-inner p{
  margin:0 22px 18px 22px;font-size:15px;line-height:1.85;color:#415663;
}

/* ------- CTA ------- */
.cta-band{
  margin-top:76px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--primary-light);border:1px solid #D8E8F1;border-radius:20px;
  padding:36px 40px;
}
.cta-title{font-size:clamp(1.3rem,2.2vw,1.7rem);color:var(--primary-dark)}
.cta-desc{margin-top:8px;font-size:14.5px;color:#41606F;max-width:56ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ------- 页脚 ------- */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:80px;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:32px}
.footer-title{font-size:14px;font-weight:700;color:var(--primary-dark);margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--muted);font-size:14px;transition:color .18s}
.footer-links a:hover{color:var(--primary);text-decoration:underline}
.footer-note{color:var(--muted);font-size:13.5px;line-height:1.75}
.sub-form{display:flex;gap:8px;margin-top:12px}
.sub-form input{
  flex:1;min-width:0;height:44px;padding:0 12px;
  font-size:14px;color:var(--text);background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:border-color .18s,box-shadow .18s;
}
.sub-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,111,142,.14)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:40px;padding:18px 0;
  font-size:13px;color:var(--muted);
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:13px;transition:color .18s}
.to-top:hover{color:var(--primary);text-decoration:none}

/* ------- 响应式 ------- */
@media (max-width:1280px){
  .nav-search{width:240px}
}
@media (max-width:1024px){
  .main-nav,.nav-search,.header-cta{display:none}
  .hamburger{display:inline-flex}
  .faq-layout{grid-template-columns:1fr;gap:26px}
  .faq-aside{position:static;order:2}
  .section{padding-top:60px}
}
@media (max-width:960px){
  .hero-panel{grid-template-columns:1fr;gap:30px;padding:30px}
  .hero-figure img{min-height:220px}
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:640px){
  .container-x{padding:0 16px}
  .header-inner{min-height:64px;gap:12px}
  .brand{font-size:16px}
  .hero-panel{padding:24px;border-radius:18px}
  .hero-search{flex-direction:column;align-items:stretch}
  .hero-search .btn{width:100%}
  .stat-card{position:static;margin-top:16px;left:auto;bottom:auto}
  .quick-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:26px;margin-top:56px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .faq-q{padding:16px 18px;font-size:15.5px}
  .faq-a-inner p{margin:0 18px 16px 18px;font-size:14.5px}
  .section{padding-top:52px}
  .site-footer{padding-top:44px;margin-top:56px}
}