/* roulang page: index */
:root{
  --brand:#14488F;
  --brand-2:#1E6BD6;
  --brand-soft:#E8EFF9;
  --teal:#0E8F82;
  --teal-soft:#E3F3F1;
  --amber:#C4831F;
  --amber-soft:#FBF1DF;
  --paper:#F7F4EE;
  --card:#FFFFFF;
  --band:#EFEAE0;
  --ink:#17202E;
  --ink-2:#4A5668;
  --ink-3:#7E8A9B;
  --line:#E1DACB;
  --line-soft:#EDE8DD;
  --radius:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(23,32,46,.06);
  --shadow-md:0 10px 28px rgba(23,32,46,.08);
  --shadow-lg:0 18px 44px rgba(23,32,46,.14);
  --container:1200px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  background-image:radial-gradient(rgba(23,32,46,.035) 1px, transparent 1px);
  background-size:22px 22px;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-2);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input{font:inherit;}
:focus-visible{outline:3px solid rgba(30,107,214,.4);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);}
.nav-top{background:#fff;}
.nav-top__inner{display:flex;align-items:center;gap:24px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink);}
.logo:hover{color:var(--brand);}
.logo__mark{width:34px;height:34px;color:var(--brand);flex-shrink:0;}
.logo__text{display:flex;flex-direction:column;line-height:1.1;}
.logo__pre{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-3);font-weight:600;}
.logo__main{font-size:19px;font-weight:700;letter-spacing:.02em;}
.logo__main b{color:var(--brand);font-weight:700;}
.nav-search{position:relative;flex:1;max-width:320px;margin-left:8px;}
.nav-search input{
  width:100%;height:40px;border-radius:var(--radius-pill);
  border:1px solid transparent;background:var(--band);
  padding:0 16px 0 40px;font-size:14px;color:var(--ink);
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search input:focus{background:#fff;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(30,107,214,.16);outline:none;}
.nav-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--ink-3);pointer-events:none;}
.nav-actions{display:flex;align-items:center;gap:16px;margin-left:auto;flex-shrink:0;}
.nav-link{font-size:14px;color:var(--ink-2);font-weight:500;}
.nav-link:hover{color:var(--brand);}
.nav-sub{background:var(--band);border-top:1px solid var(--line-soft);}
.nav-sub__scroll{display:flex;gap:10px;align-items:center;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;scroll-snap-type:x proximity;}
.nav-sub__scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:var(--radius-pill);
  font-size:15px;color:var(--ink-2);white-space:nowrap;scroll-snap-align:start;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease);
}
.nav-pill:hover{background:#fff;color:var(--brand);box-shadow:var(--shadow-sm);}
.nav-pill.is-active{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm);}
.nav-pill.is-active:hover{background:var(--brand);color:#fff;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:10px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
  min-width:44px;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(20,72,143,.22);}
.btn--primary:hover{background:#0F3B78;color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(20,72,143,.28);}
.btn--primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(20,72,143,.24);}
.btn--ghost{background:#fff;color:var(--brand);border:1px solid var(--brand);}
.btn--ghost:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-2px);}
.btn--ghost:active{transform:translateY(0);}
.btn--sm{height:38px;padding:0 18px;font-size:14px;}
.btn--block{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-more::after{content:"→";transition:transform var(--ease);}
.link-more:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}
.link-more:hover::after{transform:translateX(3px);}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;background:var(--brand-soft);color:var(--brand);
}
.tag--teal{background:var(--teal-soft);color:var(--teal);}
.tag--amber{background:var(--amber-soft);color:var(--amber);}

/* ---------- hero ---------- */
.hero{padding:64px 0 80px;position:relative;overflow:hidden;}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:var(--radius-pill);background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--ink-2);letter-spacing:.02em;box-shadow:var(--shadow-sm);
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--teal);}
.hero h1{
  margin-top:22px;font-size:44px;line-height:1.25;font-weight:700;letter-spacing:-.01em;max-width:15em;
}
.hero h1 mark{background:linear-gradient(180deg,transparent 62%,rgba(196,131,31,.32) 62%);color:var(--brand);padding:0 2px;}
.hero__lead{margin-top:20px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:34em;}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.trust{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:32px;padding-top:24px;border-top:1px dashed var(--line);}
.trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);}
.trust svg{width:16px;height:16px;color:var(--teal);flex-shrink:0;}
.hero__visual{position:relative;}
.hero__frame{
  position:relative;aspect-ratio:4/3;border-radius:20px;overflow:hidden;
  border:6px solid #fff;box-shadow:var(--shadow-md);background:linear-gradient(135deg,#DCE7F5,#EDF1F7);
}
.hero__frame img{width:100%;height:100%;object-fit:cover;}
.hero__frame::after{content:"";position:absolute;inset:0;background:rgba(20,72,143,.12);}
.hero__badge{
  position:absolute;right:-14px;bottom:-18px;display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 16px 12px 12px;
  box-shadow:var(--shadow-lg);max-width:290px;
}
.hero__badge img{width:54px;height:54px;border-radius:10px;object-fit:cover;flex-shrink:0;}
.hero__badge strong{display:block;font-size:14px;line-height:1.45;}
.hero__badge span{display:inline-flex;margin-top:6px;}

/* ---------- section ---------- */
.section{padding:96px 0;scroll-margin-top:140px;}
.section--band{background:var(--band);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section--plain{background:#fff;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:44px;}
.section-head__tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;
}
.section-head h2{margin-top:14px;font-size:28px;line-height:1.35;font-weight:600;letter-spacing:-.005em;}
.section-head__desc{max-width:30em;font-size:15px;color:var(--ink-2);line-height:1.8;}

/* ---------- number cards ---------- */
.number-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.number-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.number-card::before{content:"";position:absolute;left:28px;right:28px;top:0;height:3px;border-radius:0 0 4px 4px;background:var(--brand-soft);transition:background var(--ease);}
.number-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(23,32,46,.13);border-color:#D3C9B6;}
.number-card:hover::before{background:var(--amber);}
.number-card__num{font-size:34px;font-weight:700;line-height:1;color:var(--brand);letter-spacing:.04em;font-variant-numeric:tabular-nums;}
.number-card h3{margin-top:16px;font-size:18px;font-weight:600;line-height:1.5;}
.number-card p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--ink-2);}

/* ---------- demo ---------- */
.demo__grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.demo__grid + .demo__grid{margin-top:72px;}
.shot{
  position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-md);aspect-ratio:16/11;background:linear-gradient(135deg,#E4ECF7,#F4F1E9);
}
.shot img{width:100%;height:100%;object-fit:cover;}
.shot__cap{
  position:absolute;left:14px;bottom:14px;background:rgba(255,255,255,.94);
  border-radius:10px;padding:8px 14px;font-size:13px;color:var(--ink-2);box-shadow:var(--shadow-sm);
}
.demo h3{font-size:22px;font-weight:600;line-height:1.45;margin-bottom:16px;}
.demo p.demo__text{font-size:15px;line-height:1.85;color:var(--ink-2);}
.steps{margin-top:26px;display:grid;gap:16px;}
.step{display:flex;gap:16px;align-items:flex-start;}
.step__num{
  flex-shrink:0;width:34px;height:34px;border-radius:50%;background:#fff;border:1px solid var(--brand);
  color:var(--brand);font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.step strong{display:block;font-size:15px;font-weight:600;}
.step span{display:block;margin-top:4px;font-size:14px;color:var(--ink-2);line-height:1.75;}

/* ---------- proof ---------- */
.proof__grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px;box-shadow:var(--shadow-sm);}
.stat__num{font-size:36px;font-weight:700;line-height:1.1;color:var(--teal);letter-spacing:.01em;font-variant-numeric:tabular-nums;}
.stat__num small{font-size:16px;font-weight:600;color:var(--ink-2);margin-left:4px;}
.stat p{margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.7;}
.quotes{display:grid;gap:18px;}
.quote{background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand);border-radius:var(--radius-sm);padding:22px;box-shadow:var(--shadow-sm);}
.quote p{font-size:15px;line-height:1.8;color:var(--ink);}
.quote footer{display:flex;align-items:center;gap:12px;margin-top:16px;}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;flex-shrink:0;}
.quote cite{font-style:normal;font-size:14px;font-weight:600;display:block;}
.quote small{font-size:13px;color:var(--ink-3);}

/* ---------- news ---------- */
.news-lead{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:0;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);margin-bottom:24px;
  transition:transform var(--ease),box-shadow var(--ease);
}
.news-lead:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(23,32,46,.13);}
.news-lead__media{position:relative;min-height:250px;background:linear-gradient(135deg,#E4ECF7,#F4F1E9);}
.news-lead__media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.news-lead__body{padding:32px;display:flex;flex-direction:column;gap:14px;justify-content:center;}
.news-lead__body h3{font-size:22px;font-weight:600;line-height:1.45;}
.news-lead__body h3 a{color:var(--ink);}
.news-lead__body h3 a:hover{color:var(--brand);}
.news-lead__body p{font-size:15px;line-height:1.8;color:var(--ink-2);}
.news-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--ink-3);}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(23,32,46,.13);border-color:#D3C9B6;}
.news-card__media{aspect-ratio:16/9;background:linear-gradient(135deg,#E4ECF7,#F4F1E9);position:relative;}
.news-card__media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.news-card__body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-card__body h3{font-size:17px;font-weight:600;line-height:1.55;}
.news-card__body h3 a{color:var(--ink);}
.news-card__body h3 a:hover{color:var(--brand);}
.news-card__body p{font-size:14px;line-height:1.8;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__body .news-meta{margin-top:auto;padding-top:8px;border-top:1px dashed var(--line-soft);}
.news-list{margin-top:24px;display:grid;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.news-item{display:flex;align-items:center;gap:16px;padding:16px 22px;border-bottom:1px solid var(--line-soft);transition:background var(--ease);}
.news-item:last-child{border-bottom:0;}
.news-item:hover{background:#FCFAF6;}
.news-item__title{font-size:15px;font-weight:600;color:var(--ink);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.news-item__title:hover{color:var(--brand);}
.news-item time{font-size:13px;color:var(--ink-3);flex-shrink:0;}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  min-height:190px;border:1px dashed var(--line);border-radius:var(--radius);
  background:#fff;color:var(--ink-2);text-align:center;padding:32px;
}
.empty-state svg{width:38px;height:38px;color:var(--ink-3);}
.empty-state p{font-size:15px;}

/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.plan{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:18px;position:relative;
  transition:transform var(--ease),box-shadow var(--ease);
}
.plan:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(23,32,46,.12);}
.plan--featured{border:2px solid var(--brand);box-shadow:var(--shadow-md);transform:translateY(-8px);}
.plan--featured:hover{transform:translateY(-11px);}
.plan__flag{position:absolute;top:-13px;left:26px;height:26px;padding:0 12px;border-radius:var(--radius-pill);background:var(--amber);color:#fff;font-size:12px;font-weight:700;display:inline-flex;align-items:center;}
.plan h3{font-size:17px;font-weight:600;}
.plan__price{display:flex;align-items:baseline;gap:6px;padding-bottom:18px;border-bottom:1px dashed var(--line);}
.plan__price strong{font-size:40px;font-weight:700;line-height:1;letter-spacing:.01em;color:var(--brand);font-variant-numeric:tabular-nums;}
.plan__price span{font-size:14px;color:var(--ink-3);}
.plan__list{display:grid;gap:12px;}
.plan__list li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:var(--ink-2);}
.plan__list svg{width:16px;height:16px;color:var(--teal);flex-shrink:0;margin-top:4px;}
.plan .btn{margin-top:auto;}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;}
.faq-list{display:grid;gap:14px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);}
.faq-item:hover{border-color:#D3C9B6;}
.faq-item.is-open{border-color:#C9D8EC;box-shadow:var(--shadow-sm);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;font-size:16px;font-weight:600;text-align:left;color:var(--ink);
  min-height:56px;
}
.faq-q::after{
  content:"";flex-shrink:0;width:20px;height:20px;border-radius:50%;
  background:
    linear-gradient(var(--brand),var(--brand)) center/10px 2px no-repeat,
    linear-gradient(var(--brand),var(--brand)) center/2px 10px no-repeat,
    var(--brand-soft);
  transition:transform var(--ease),background-size var(--ease);
}
.faq-item.is-open .faq-q::after{transform:rotate(90deg);background-size:10px 2px,0 0,100%;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 220ms ease;}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a__inner{overflow:hidden;}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ---------- cta band ---------- */
.cta-band{background:var(--brand-soft);border:1px solid #D5E2F3;border-radius:20px;padding:52px 44px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-band h2{font-size:26px;font-weight:600;line-height:1.4;max-width:22em;}
.cta-band p{margin-top:12px;font-size:15px;color:var(--ink-2);line-height:1.8;max-width:36em;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:#17202E;color:#B9C2D0;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px;}
.footer-brand .logo__mark{color:#7FB3F0;width:30px;height:30px;}
.footer-brand strong{font-size:18px;font-weight:700;}
.site-footer p{font-size:14px;line-height:1.85;color:#9FAABA;}
.footer-contact{margin-top:18px;display:grid;gap:8px;font-size:14px;color:#9FAABA;}
.footer-contact span{display:flex;gap:8px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:#9FAABA;font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-sub{display:flex;gap:10px;margin-top:16px;}
.footer-sub input{
  flex:1;min-width:0;height:42px;border-radius:10px;border:1px solid #313C4E;background:#1F2836;
  color:#fff;padding:0 14px;font-size:14px;
}
.footer-sub input::placeholder{color:#6E7A8C;}
.footer-sub input:focus{outline:none;border-color:#7FB3F0;box-shadow:0 0 0 3px rgba(127,179,240,.2);}
.footer-sub .btn--primary{background:#2A62B8;box-shadow:none;}
.footer-sub .btn--primary:hover{background:#356FC8;}
.footer-bottom{border-top:1px solid #2A3446;padding:22px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7C8798;}
.footer-bottom a{color:#9FAABA;}
.footer-bottom a:hover{color:#fff;}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-pill);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 10px 26px rgba(20,72,143,.32);transition:transform var(--ease),background var(--ease);
}
.float-cta:hover{background:#0F3B78;color:#fff;transform:translateY(-2px);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .hero h1{font-size:38px;}
}
@media (max-width:1023px){
  .nav-search{display:none;}
  .hero{padding:48px 0 64px;}
  .hero__grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:34px;max-width:none;}
  .hero__badge{right:8px;bottom:-14px;}
  .section{padding:64px 0;}
  .demo__grid{grid-template-columns:1fr;gap:32px;}
  .demo__grid + .demo__grid{margin-top:56px;}
  .demo__grid--rev .shot{order:-1;}
  .proof__grid{grid-template-columns:1fr;gap:32px;}
  .news-lead{grid-template-columns:1fr;}
  .news-lead__media{min-height:200px;position:relative;}
  .news-grid{grid-template-columns:1fr 1fr;}
  .plans{grid-template-columns:1fr;max-width:520px;}
  .plan--featured{transform:none;}
  .plan--featured:hover{transform:translateY(-3px);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:40px 28px;}
}
@media (max-width:767px){
  .nav-top__inner{height:64px;gap:14px;}
  .nav-link{display:none;}
  .logo__main{font-size:17px;}
  .number-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr 1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .section-head h2{font-size:23px;}
  .hero h1{font-size:29px;line-height:1.35;}
  .hero__lead{font-size:16px;}
  .news-item__title{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .news-item{flex-wrap:wrap;gap:6px;}
  .news-item time{width:100%;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  body{padding-bottom:76px;}
  .hero{padding:36px 0 52px;}
  .hero h1{font-size:26px;}
  .hero__cta{flex-direction:column;align-items:stretch;}
  .hero__cta .btn{width:100%;height:48px;}
  .trust{gap:10px 16px;}
  .stats{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .plans{max-width:none;}
  .cta-band{padding:32px 20px;border-radius:16px;}
  .cta-band h2{font-size:21px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{width:100%;height:48px;}
  .float-cta{
    left:0;right:0;bottom:0;height:52px;border-radius:0;justify-content:center;
    padding:0 16px 12px;box-shadow:0 -6px 20px rgba(23,32,46,.18);
  }
  .float-cta:hover{transform:none;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a p{padding:0 18px 18px;font-size:14.5px;}
}

/* roulang page: article */
:root{
  --primary:#1E6BD6;
  --primary-dark:#14488F;
  --primary-soft:#E8F1FE;
  --teal:#0FB5A6;
  --amber:#F5A524;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --alt:#F1F5FB;
  --ink:#0F1B2D;
  --ink-2:#5A6B85;
  --ink-3:#8A99B0;
  --line:#E2E8F2;
  --line-soft:#EDF1F7;
  --radius:16px;
  --radius-sm:10px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(16,40,80,.06);
  --shadow-md:0 8px 24px rgba(16,40,80,.08);
  --shadow-lg:0 14px 34px rgba(16,40,80,.13);
  --container:1200px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
h1,h2,h3,h4{margin:0}
p{margin:0}
ul,ol{margin:0;padding:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:200}
.skip:focus{left:0}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
.nav-top__inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{width:32px;height:32px;color:var(--primary);flex:0 0 auto}
.logo__text{display:flex;flex-direction:column;line-height:1.1}
.logo__pre{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-3)}
.logo__main{font-size:19px;font-weight:700;letter-spacing:.02em;color:var(--ink)}
.logo__main b{color:var(--primary)}
.nav-search{position:relative;display:flex;align-items:center;flex:1 1 auto;max-width:320px}
.nav-search svg{position:absolute;left:14px;width:18px;height:18px;color:var(--ink-3);pointer-events:none}
.nav-search input{
  width:100%;height:40px;border-radius:999px;border:1px solid transparent;
  background:var(--alt);padding:0 16px 0 42px;font-size:14px;color:var(--ink);
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search input:focus{outline:none;background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,107,214,.18)}
.nav-actions{display:flex;align-items:center;gap:18px;margin-left:auto}
.nav-link{font-size:14px;color:var(--ink-2);transition:color var(--ease)}
.nav-link:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.nav-sub{background:var(--alt);border-top:1px solid var(--line-soft)}
.nav-sub__scroll{
  display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;scroll-snap-type:x proximity;
}
.nav-sub__scroll::-webkit-scrollbar{display:none}
.nav-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;font-size:15px;color:var(--ink-2);white-space:nowrap;
  scroll-snap-align:start;transition:background var(--ease),color var(--ease);
}
.nav-pill:hover{background:#fff;color:var(--primary)}
.nav-pill.is-active{background:var(--primary);color:#fff;font-weight:600}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),background var(--ease),box-shadow var(--ease),color var(--ease),border-color var(--ease);
}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(30,107,214,.22)}
.btn--primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 22px rgba(30,107,214,.26)}
.btn--primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(30,107,214,.22)}
.btn--ghost{background:#fff;border-color:var(--primary);color:var(--primary)}
.btn--ghost:hover{background:var(--primary-soft);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(0)}
.btn--sm{height:38px;padding:0 16px;font-size:14px}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(30,107,214,.32)}

/* ---------- page head / breadcrumb ---------- */
.page-head{background:linear-gradient(180deg,#FFFFFF 0%,#F6F8FB 100%);border-bottom:1px solid var(--line-soft)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:18px 0;font-size:14px;color:var(--ink-2)}
.breadcrumb a{transition:color var(--ease)}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.breadcrumb .sep{color:var(--ink-3)}
.breadcrumb .now{color:var(--primary);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article ---------- */
.article-wrap{max-width:824px;margin:0 auto;padding:40px 32px 0}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-md);padding:38px 40px 44px;
}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--primary-soft);color:var(--primary);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.article-title{
  font-size:32px;line-height:1.4;font-weight:700;letter-spacing:-.01em;
  margin:16px 0 18px;color:var(--ink);
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--ink-3)}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--ink-3)}
.article-meta time{color:var(--ink-2)}
.article-cover{margin:26px 0 6px;border-radius:var(--radius-img);overflow:hidden;background:linear-gradient(135deg,#E8F1FE,#DCE8F7);aspect-ratio:16/9}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-divider{height:1px;background:var(--line-soft);margin:28px 0}
.article-body{font-size:16px;line-height:1.85;color:#22314A;word-break:break-word}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;font-size:24px;line-height:1.45;font-weight:700;
  margin:36px 0 16px;padding-left:14px;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--primary);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;margin:28px 0 12px;color:var(--ink)}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--primary-soft);
  border-left:3px solid var(--primary);border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:#233A5C;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);margin:20px 0}
.article-body a{color:var(--primary);border-bottom:2px solid rgba(30,107,214,.24);transition:border-color var(--ease)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body strong{color:var(--ink);font-weight:600}
.article-body hr{border:0;height:1px;background:var(--line-soft);margin:32px 0}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--alt);font-weight:600}
.article-body code{background:var(--alt);border-radius:6px;padding:2px 6px;font-size:14px;color:var(--primary-dark)}

/* ---------- empty state ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  gap:10px;padding:52px 24px;border:1px dashed #C9D7EA;border-radius:var(--radius);
  background:var(--alt);
}
.empty-state svg{width:44px;height:44px;color:var(--ink-3)}
.empty-state__title{font-size:18px;font-weight:600;color:var(--ink)}
.empty-state p.desc{font-size:14px;color:var(--ink-2);max-width:420px;line-height:1.8}
.empty-state .btn{margin-top:8px}

/* ---------- related ---------- */
.related{padding:64px 0 0}
.related__inner{max-width:824px;margin:0 auto;padding:0 32px}
.section-head{margin-bottom:24px}
.section-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;
}
.section-head h2{font-size:26px;line-height:1.35;font-weight:600;margin:12px 0 8px;color:var(--ink)}
.section-head p{font-size:14px;line-height:1.8;color:var(--ink-2);max-width:560px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card-row{
  display:flex;gap:14px;align-items:center;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);
  padding:14px;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CFE0F7}
.card-row__thumb{
  width:76px;height:62px;flex:0 0 auto;border-radius:10px;overflow:hidden;
  background:linear-gradient(135deg,#E8F1FE,#D8E6F7);
}
.card-row__thumb img{width:100%;height:100%;object-fit:cover}
.card-row__body{min-width:0}
.card-row__body h3{font-size:15px;line-height:1.5;font-weight:600;color:var(--ink);margin-bottom:4px}
.card-row__body p{font-size:13px;line-height:1.6;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-row:hover .card-row__body h3{color:var(--primary)}
.related-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ---------- cta band ---------- */
.cta-band{padding:72px 0 0}
.cta-band__inner{
  position:relative;overflow:hidden;border-radius:20px;
  padding:40px 44px;display:flex;flex-wrap:wrap;align-items:center;gap:24px;
  justify-content:space-between;color:#fff;
  background-image:linear-gradient(120deg,rgba(20,72,143,.94),rgba(30,107,214,.82)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-md);
}
.cta-band__text{max-width:620px;position:relative;z-index:1}
.cta-band__text h2{font-size:26px;line-height:1.4;font-weight:600;margin-bottom:10px}
.cta-band__text p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.86)}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}
.cta-band .btn--primary{background:#fff;color:var(--primary-dark);box-shadow:0 8px 20px rgba(4,26,58,.24)}
.cta-band .btn--primary:hover{background:#fff;color:var(--primary-dark);transform:translateY(-2px)}
.cta-band .btn--ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.cta-band .btn--ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 24px;
  border-radius:999px;background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 12px 28px rgba(20,72,143,.3);
  transition:transform var(--ease),background var(--ease),box-shadow var(--ease);
}
.float-cta svg{width:18px;height:18px}
.float-cta:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 16px 34px rgba(20,72,143,.36)}
.float-cta:active{transform:translateY(0)}
.float-cta:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(30,107,214,.35)}

/* ---------- footer ---------- */
.site-footer{background:#0F1B2D;color:#B7C4D8;margin-top:80px;padding:56px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1);
}
.logo--footer .logo__main{color:#fff}
.logo--footer .logo__main b{color:#6FA8F5}
.logo--footer .logo__pre{color:#7F8FA9}
.logo--footer .logo__mark{color:#6FA8F5}
.footer-brand p{font-size:14px;line-height:1.85;color:#93A3BC;margin-top:14px;max-width:340px}
.footer-contact{list-style:none;margin:16px 0 0;display:grid;gap:8px;font-size:13px;color:#7F8FA9}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{font-size:14px;color:#B7C4D8;transition:color var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-col p{font-size:13px;line-height:1.85;color:#93A3BC}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:20px 0 28px;font-size:13px;color:#7F8FA9}
.footer-bottom a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container,.article-wrap,.related__inner{padding-left:24px;padding-right:24px}
  .nav-search{max-width:240px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .related-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  .nav-link{display:none}
  .nav-search{display:none}
  .article-card{padding:28px 26px 34px}
  .article-title{font-size:28px}
  .cta-band__inner{padding:32px 28px}
}
@media (max-width:640px){
  .nav-top__inner{height:64px;gap:12px}
  .logo__main{font-size:17px}
  .nav-sub__scroll{height:48px}
  .nav-pill{height:34px;font-size:14px}
  .article-wrap{padding-top:24px}
  .article-card{padding:24px 20px 30px}
  .article-title{font-size:26px;margin:14px 0 14px}
  .article-body{font-size:15.5px;line-height:1.8}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .related{padding-top:48px}
  .related-grid{grid-template-columns:1fr}
  .section-head h2{font-size:22px}
  .cta-band{padding-top:52px}
  .cta-band__inner{padding:26px 20px;border-radius:16px;flex-direction:column;align-items:flex-start}
  .cta-band__text h2{font-size:22px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1 1 auto}
  .float-cta{left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom,0px));width:auto;height:52px;justify-content:center;border-radius:12px}
  .site-footer{margin-top:64px;padding-top:44px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:420px){
  .container,.article-wrap,.related__inner{padding-left:16px;padding-right:16px}
  .article-card{padding:20px 16px 26px}
  .breadcrumb .now{max-width:180px}
}

/* roulang page: category1 */
:root{
  --c-primary:#1E6BD6;
  --c-primary-dark:#14488F;
  --c-primary-soft:#E8F1FE;
  --c-teal:#0FB5A6;
  --c-teal-soft:#E6F8F6;
  --c-amber:#F5A524;
  --c-amber-soft:#FEF3E0;
  --c-bg:#F6F8FB;
  --c-card:#FFFFFF;
  --c-band:#F1F5FB;
  --c-ink:#0F1B2D;
  --c-ink-2:#5A6B85;
  --c-ink-3:#8A99B0;
  --c-line:#E2E8F2;
  --c-line-2:#EDF1F7;
  --c-line-strong:#C9D6E8;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-sm:0 1px 2px rgba(16,40,80,.06);
  --sh-md:0 8px 24px rgba(16,40,80,.08);
  --sh-lg:0 14px 34px rgba(16,40,80,.13);
  --container:1200px;
  --font: "PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease}
a:hover{color:var(--c-primary-dark)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
:focus-visible{outline:3px solid rgba(30,107,214,.35);outline-offset:2px;border-radius:6px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
section[id]{scroll-margin-top:132px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-card);
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--sh-sm);
}
.nav-top__inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:24px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--c-primary);
  flex:0 0 auto;
}
.logo:hover{color:var(--c-primary-dark)}
.logo__mark{width:32px;height:32px;flex:0 0 32px}
.logo__text{display:flex;align-items:baseline;gap:4px;line-height:1}
.logo__pre{
  font-size:13px;
  letter-spacing:.08em;
  color:var(--c-ink-3);
  text-transform:uppercase;
}
.logo__main{
  font-size:20px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--c-ink);
}
.logo__main b{color:var(--c-primary);font-weight:700}
.nav-search{
  position:relative;
  flex:1 1 auto;
  max-width:320px;
  display:flex;
  align-items:center;
  background:var(--c-band);
  border:1px solid transparent;
  border-radius:999px;
  padding:0 16px;
  height:42px;
  transition:background-color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{
  background:var(--c-card);
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(30,107,214,.16);
}
.nav-search svg{width:18px;height:18px;color:var(--c-ink-3);flex:0 0 18px}
.nav-search input{
  border:0;
  background:transparent;
  outline:none;
  width:100%;
  height:100%;
  margin-left:8px;
  font-size:14px;
  color:var(--c-ink);
  font-family:inherit;
}
.nav-search input::placeholder{color:var(--c-ink-3)}
.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:18px;
  flex:0 0 auto;
}
.nav-link{
  font-size:14px;
  color:var(--c-ink-2);
  font-weight:500;
  padding:6px 2px;
  border-bottom:2px solid transparent;
}
.nav-link:hover{color:var(--c-primary);border-bottom-color:var(--c-primary)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--c-line);
  background:var(--c-card);
  border-radius:var(--r-btn);
  color:var(--c-ink);
  cursor:pointer;
  margin-left:auto;
}
.nav-toggle svg{width:20px;height:20px}

.nav-sub{
  background:var(--c-band);
  border-top:1px solid var(--c-line-2);
}
.nav-sub__scroll{
  display:flex;
  align-items:center;
  gap:10px;
  height:52px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  scroll-snap-type:x proximity;
}
.nav-sub__scroll::-webkit-scrollbar{display:none}
.nav-pill{
  flex:0 0 auto;
  scroll-snap-align:start;
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:999px;
  font-size:15px;
  color:var(--c-ink-2);
  white-space:nowrap;
  transition:all .18s ease;
}
.nav-pill:hover{background:var(--c-card);color:var(--c-primary)}
.nav-pill.is-active{
  background:var(--c-primary);
  color:#fff;
  font-weight:600;
  box-shadow:0 4px 12px rgba(30,107,214,.24);
}
.nav-pill.is-active:hover{background:var(--c-primary-dark);color:#fff}

.nav-drawer{
  display:none;
  border-top:1px solid var(--c-line-2);
  background:var(--c-card);
  padding:16px 0 20px;
}
.nav-drawer.is-open{display:block}
.nav-drawer .nav-search{max-width:none;width:100%}
.nav-drawer__links{
  display:flex;
  flex-direction:column;
  gap:4px;
  margin-top:12px;
}
.nav-drawer__links a{
  padding:12px 4px;
  font-size:15px;
  color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line-2);
  min-height:44px;
  display:flex;
  align-items:center;
}
.nav-drawer__links a:last-child{border-bottom:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:all .18s ease;
}
.btn--sm{height:38px;padding:0 18px;font-size:14px}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(30,107,214,.22)}
.btn--primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(30,107,214,.28)}
.btn--primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(30,107,214,.2)}
.btn--ghost{background:var(--c-card);color:var(--c-primary);border-color:var(--c-primary)}
.btn--ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(0)}
.btn--amber{background:var(--c-amber);color:#3A2500;box-shadow:0 6px 16px rgba(245,165,36,.28)}
.btn--amber:hover{background:#E79513;color:#3A2500;transform:translateY(-2px)}

/* ---------- 页首横幅 ---------- */
.page-hero{
  position:relative;
  background-image:linear-gradient(180deg,rgba(246,248,251,.93),rgba(246,248,251,.97)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--c-line);
  padding:52px 0 56px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-ink-3);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px}
.breadcrumb .sep{color:var(--c-line-strong)}
.breadcrumb .current{color:var(--c-primary);font-weight:500}
.page-hero__grid{
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(0,.85fr);
  gap:56px;
  align-items:center;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:var(--c-primary-soft);
  color:var(--c-primary-dark);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
}
.tag--teal{background:var(--c-teal-soft);color:#0A7F76}
.tag--amber{background:var(--c-amber-soft);color:#9A6100}
.page-hero h1{
  font-size:38px;
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.4px;
  margin:18px 0 16px;
  color:var(--c-ink);
}
.page-hero h1 mark{
  background:linear-gradient(180deg,transparent 62%,rgba(30,107,214,.18) 62%);
  color:var(--c-primary-dark);
  padding:0 2px;
}
.page-hero__lead{
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  max-width:620px;
}
.page-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.trust-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:26px;
  padding-top:22px;
  border-top:1px dashed var(--c-line-strong);
}
.trust-row li{
  display:flex;
  align-items:center;
  gap:7px;
  font-size:13.5px;
  color:var(--c-ink-2);
}
.trust-row svg{width:16px;height:16px;color:var(--c-teal);flex:0 0 16px}
.hero-figure{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--c-line-strong);
  background:var(--c-band);
  box-shadow:var(--sh-md);
  aspect-ratio:4/3;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure__badge{
  position:absolute;
  left:16px;
  bottom:16px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.96);
  border-radius:999px;
  padding:8px 14px;
  font-size:13px;
  font-weight:600;
  color:var(--c-ink);
  box-shadow:var(--sh-sm);
  border:1px solid var(--c-line);
}
.hero-figure__badge i{
  width:8px;height:8px;border-radius:50%;
  background:var(--c-teal);
  display:inline-block;
}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section--band{background:var(--c-band);border-top:1px solid var(--c-line-2);border-bottom:1px solid var(--c-line-2)}
.section-head{margin-bottom:36px;max-width:760px}
.section-head h2{
  font-size:28px;
  line-height:1.35;
  font-weight:600;
  margin:14px 0 10px;
  letter-spacing:-.2px;
}
.section-head p{color:var(--c-ink-2);font-size:15.5px}
.section-head--row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  max-width:none;
  flex-wrap:wrap;
}
.section-head--row .section-head__text{max-width:640px}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--c-primary);
  padding-bottom:2px;
  border-bottom:2px solid transparent;
}
.link-more:hover{border-bottom-color:var(--c-primary);text-underline-offset:4px}

/* ---------- 主栏 + 侧栏 ---------- */
.layout-aside{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:48px;
  align-items:start;
}
.main-col{min-width:0}
.side-col{
  position:sticky;
  top:132px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.col-head{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:18px;
}
.col-head::before{
  content:"";
  width:4px;
  height:22px;
  border-radius:2px;
  background:var(--c-primary);
  flex:0 0 4px;
}
.col-head h2{
  font-size:23px;
  font-weight:600;
  line-height:1.4;
  letter-spacing:-.2px;
}
.block + .block{margin-top:56px}
.prose p{
  font-size:16px;
  line-height:1.9;
  color:var(--c-ink-2);
  margin-bottom:18px;
}
.prose p strong{color:var(--c-ink);font-weight:600}
.prose p:last-child{margin-bottom:0}

.lead-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-top:3px double var(--c-line-strong);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-sm);
}
.lead-card__figure{
  border-radius:var(--r-img);
  overflow:hidden;
  margin-bottom:22px;
  aspect-ratio:16/8;
  background:var(--c-band);
  border:1px solid var(--c-line);
}
.lead-card__figure img{width:100%;height:100%;object-fit:cover}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";
  position:absolute;
  left:23px;
  top:12px;
  bottom:12px;
  width:2px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-line-strong));
  border-radius:2px;
}
.timeline__item{
  position:relative;
  display:flex;
  gap:22px;
  padding-bottom:30px;
}
.timeline__item:last-child{padding-bottom:0}
.timeline__num{
  flex:0 0 48px;
  width:48px;
  height:48px;
  border-radius:50%;
  background:var(--c-card);
  border:2px solid var(--c-primary);
  color:var(--c-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  font-weight:700;
  letter-spacing:.04em;
  z-index:1;
  box-shadow:0 0 0 6px var(--c-bg);
}
.timeline__body{
  flex:1;
  min-width:0;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh-sm);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.timeline__body:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:var(--c-line-strong)}
.timeline__body h3{
  font-size:18px;
  font-weight:600;
  margin-bottom:8px;
  line-height:1.5;
}
.timeline__body p{
  font-size:15px;
  line-height:1.85;
  color:var(--c-ink-2);
}
.timeline__hint{
  display:flex;
  gap:8px;
  align-items:flex-start;
  margin-top:14px;
  padding:10px 14px;
  background:var(--c-primary-soft);
  border-radius:10px;
  font-size:13.5px;
  color:var(--c-primary-dark);
  line-height:1.7;
}
.timeline__hint svg{width:16px;height:16px;flex:0 0 16px;margin-top:3px}

/* ---------- 注意卡 2 列 ---------- */
.note-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.note-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-sm);
  transition:all .18s ease;
}
.note-card:hover{box-shadow:var(--sh-md);transform:translateY(-3px);border-color:var(--c-line-strong)}
.note-card__num{
  font-size:32px;
  font-weight:700;
  color:var(--c-primary);
  letter-spacing:-1px;
  line-height:1;
  margin-bottom:12px;
  opacity:.85;
}
.note-card h3{font-size:17px;font-weight:600;margin-bottom:8px;line-height:1.5}
.note-card p{font-size:14.5px;line-height:1.8;color:var(--c-ink-2)}

/* ---------- 核对清单 ---------- */
.checklist{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:8px 26px;
  box-shadow:var(--sh-sm);
}
.checklist li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:18px 0;
  border-bottom:1px dashed var(--c-line-2);
}
.checklist li:last-child{border-bottom:0}
.checklist svg{
  width:20px;height:20px;flex:0 0 20px;
  color:var(--c-teal);
  margin-top:3px;
}
.checklist strong{display:block;font-size:15.5px;font-weight:600;color:var(--c-ink);margin-bottom:4px}
.checklist span{font-size:14.5px;line-height:1.8;color:var(--c-ink-2)}

/* ---------- 侧栏卡片 ---------- */
.side-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--sh-sm);
}
.side-card__title{
  font-size:16px;
  font-weight:600;
  margin-bottom:16px;
  display:flex;
  align-items:center;
  gap:8px;
}
.side-card__title svg{width:18px;height:18px;color:var(--c-primary)}

.quick-links{display:flex;flex-direction:column;gap:4px}
.quick-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:12px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--c-ink-2);
  min-height:44px;
  transition:all .18s ease;
}
.quick-links a:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.quick-links a svg{width:16px;height:16px;flex:0 0 16px;color:var(--c-ink-3);transition:transform .18s ease,color .18s ease}
.quick-links a:hover svg{color:var(--c-primary);transform:translateX(3px)}

.update-list{display:flex;flex-direction:column;gap:0}
.update-list li{
  padding:14px 0;
  border-bottom:1px dashed var(--c-line-2);
}
.update-list li:last-child{border-bottom:0;padding-bottom:0}
.update-list li:first-child{padding-top:0}
.update-list time{
  display:block;
  font-size:12.5px;
  color:var(--c-ink-3);
  letter-spacing:.04em;
  margin-bottom:4px;
}
.update-list a{
  font-size:14.5px;
  line-height:1.65;
  color:var(--c-ink);
  font-weight:500;
}
.update-list a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px}

.side-cta{
  background:linear-gradient(160deg,#E8F1FE 0%,#F5FAFF 100%);
  border:1px solid #C9DEFB;
  border-radius:var(--r-card);
  padding:24px;
}
.side-cta h3{font-size:17px;font-weight:600;margin-bottom:8px;line-height:1.5}
.side-cta p{font-size:14px;line-height:1.8;color:var(--c-ink-2);margin-bottom:16px}
.side-cta .btn{width:100%}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:800px;margin:0 auto}
.faq-item{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item:hover{border-color:var(--c-line-strong);box-shadow:var(--sh-sm)}
.faq-item[open]{box-shadow:var(--sh-md);border-color:#C9DEFB}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--c-ink);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  font-size:22px;
  font-weight:400;
  color:var(--c-primary);
  line-height:1;
  flex:0 0 auto;
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item__body{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-ink-2);
  border-top:1px dashed var(--c-line-2);
  padding-top:16px;
  margin-top:2px;
}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:linear-gradient(140deg,#E8F1FE 0%,#F4F9FF 55%,#EAF7F5 100%);
  border:1px solid #CFE1FA;
  border-radius:20px;
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-60px;
  width:220px;
  height:220px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(15,181,166,.16),transparent 70%);
}
.cta-band__text{position:relative;z-index:1;max-width:620px}
.cta-band h2{font-size:26px;font-weight:600;line-height:1.4;margin-bottom:10px;letter-spacing:-.2px}
.cta-band p{font-size:15px;line-height:1.85;color:var(--c-ink-2)}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:28px;
  bottom:28px;
  z-index:70;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:50px;
  padding:0 24px;
  border-radius:999px;
  background:var(--c-amber);
  color:#3A2500;
  font-size:15px;
  font-weight:700;
  box-shadow:0 10px 26px rgba(245,165,36,.36);
  transition:all .18s ease;
}
.float-cta:hover{background:#E79513;color:#3A2500;transform:translateY(-2px);box-shadow:0 14px 32px rgba(245,165,36,.42)}
.float-cta svg{width:18px;height:18px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#0F1B2D;
  color:#C4D0E2;
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:44px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .logo__main{color:#fff}
.footer-brand .logo__main b{color:#6FA8F5}
.footer-brand .logo__pre{color:#7A8CA8}
.footer-brand .logo{color:#6FA8F5;margin-bottom:16px}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:#93A3BC;
  margin-bottom:18px;
  max-width:320px;
}
.footer-brand__meta{
  display:flex;
  flex-direction:column;
  gap:8px;
  font-size:13.5px;
  color:#879AB6;
}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:2px}
.footer-col a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:#93A3BC;
  padding:8px 0;
  min-height:40px;
  transition:color .18s ease,transform .18s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-col a svg{width:14px;height:14px;opacity:.6}
.footer-note{
  font-size:13.5px;
  line-height:1.85;
  color:#879AB6;
}
.footer-note strong{color:#C4D0E2;font-weight:600}
.footer-bottom{
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#7A8CA8;
}
.footer-bottom__links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{color:#93A3BC}
.footer-bottom a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px}
}
@media (max-width:1023px){
  .nav-search{display:none}
  .nav-actions{display:none}
  .nav-toggle{display:flex}
  .page-hero__grid{grid-template-columns:1fr;gap:32px}
  .page-hero h1{font-size:32px}
  .hero-figure{aspect-ratio:16/9;max-width:620px}
  .layout-aside{grid-template-columns:1fr;gap:36px}
  .side-col{position:static;top:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding-bottom:40px}
  .section{padding:60px 0}
  .cta-band{padding:34px 30px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .page-hero{padding:36px 0 40px}
  .page-hero h1{font-size:28px;line-height:1.35}
  .page-hero__lead{font-size:15px}
  .page-hero__actions .btn{flex:1 1 auto;min-width:150px}
  .note-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
  .section-head h2{font-size:23px}
  .col-head h2{font-size:20px}
  .timeline__item{gap:16px}
  .timeline__num{width:42px;height:42px;flex-basis:42px;font-size:14px}
  .timeline::before{left:20px}
  .timeline__body{padding:18px 18px}
  .lead-card{padding:20px}
  .checklist{padding:4px 18px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-item__body{padding:14px 18px 18px}
  .cta-band{padding:28px 22px;border-radius:16px}
  .cta-band h2{font-size:21px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1 1 auto}
  .float-cta{
    left:12px;
    right:12px;
    bottom:0;
    height:52px;
    border-radius:0;
    justify-content:center;
    padding:0 16px;
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -6px 22px rgba(16,40,80,.16);
  }
  .float-cta:hover{transform:none}
  body{padding-bottom:64px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .nav-top__inner{height:64px;gap:12px}
  .logo__main{font-size:18px}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:14px}
}
@media (max-width:519px){
  .logo__pre{display:none}
  .trust-row{flex-direction:column;gap:10px}
  .page-hero__actions{flex-direction:column;align-items:stretch}
  .page-hero__actions .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --primary:#1E6BD6;
  --primary-dark:#14488F;
  --primary-soft:#E8F1FE;
  --teal:#0FB5A6;
  --teal-soft:#E3F7F5;
  --amber:#F5A524;
  --amber-soft:#FDF3E2;
  --bg:#F6F8FB;
  --paper:#FFFFFF;
  --bg-alt:#F1F5FB;
  --ink:#0F1B2D;
  --ink-2:#5A6B85;
  --ink-3:#8A99B0;
  --line:#E2E8F2;
  --line-soft:#EDF1F7;
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:18px;
  --shadow-sm:0 1px 2px rgba(16,40,80,.06);
  --shadow-md:0 8px 24px rgba(16,40,80,.08);
  --shadow-lg:0 14px 34px rgba(16,40,80,.13);
  --gap:24px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  background-image:radial-gradient(rgba(30,107,214,.055) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--primary-dark);}
button{font:inherit;cursor:pointer;}
input,button,textarea,select{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.35;font-weight:600;color:var(--ink);}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(30,107,214,.32);border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn--primary{
  background:var(--primary);color:#fff;
  box-shadow:0 3px 0 rgba(20,72,143,.25),var(--shadow-sm);
}
.btn--primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 5px 16px rgba(20,72,143,.26);}
.btn--primary:active{transform:translateY(1px);box-shadow:0 1px 0 rgba(20,72,143,.3);}
.btn--ghost{
  background:#fff;color:var(--primary);border-color:var(--primary);
  box-shadow:0 3px 0 rgba(30,107,214,.12);
}
.btn--ghost:hover{background:var(--primary-soft);transform:translateY(-2px);}
.btn--ghost:active{transform:translateY(1px);box-shadow:none;}
.btn--sm{height:38px;padding:0 18px;font-size:14px;}
.btn--block{width:100%;}
.link-arrow{font-weight:600;display:inline-flex;align-items:center;gap:6px;border-bottom:2px solid transparent;}
.link-arrow:hover{border-bottom-color:var(--primary);}

/* ---------- 双层导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;}
.nav-top{
  background:var(--paper);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.nav-top__inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;
}
.logo{display:flex;align-items:center;gap:10px;color:var(--primary);flex:0 0 auto;}
.logo:hover{color:var(--primary-dark);}
.logo__mark{width:32px;height:32px;flex:0 0 auto;}
.logo__text{display:flex;align-items:baseline;gap:4px;line-height:1;}
.logo__pre{font-size:13px;letter-spacing:.14em;color:var(--ink-2);text-transform:lowercase;}
.logo__main{font-size:20px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
.logo__main b{color:var(--primary);font-weight:700;}
.nav-search{
  flex:1 1 auto;max-width:320px;position:relative;display:flex;align-items:center;
  background:var(--bg-alt);border:1px solid transparent;border-radius:999px;
  padding:0 16px;height:40px;transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.nav-search svg{width:17px;height:17px;color:var(--ink-3);flex:0 0 auto;}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;height:100%;
  padding-left:8px;font-size:14px;color:var(--ink);
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,107,214,.16);}
.nav-actions{display:flex;align-items:center;gap:18px;margin-left:auto;flex:0 0 auto;}
.nav-link{font-size:14px;font-weight:600;color:var(--ink-2);}
.nav-link:hover{color:var(--primary);}
.nav-sub{background:var(--bg-alt);border-bottom:1px solid var(--line);}
.nav-sub__scroll{
  display:flex;align-items:center;gap:10px;height:52px;
  overflow-x:auto;white-space:nowrap;scrollbar-width:none;-ms-overflow-style:none;
  scroll-snap-type:x proximity;
}
.nav-sub__scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  font-size:15px;color:var(--ink-2);flex:0 0 auto;scroll-snap-align:start;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease);
}
.nav-pill:hover{background:#fff;color:var(--primary);box-shadow:var(--shadow-sm);}
.nav-pill.is-active{background:var(--primary);color:#fff;font-weight:600;box-shadow:0 3px 10px rgba(30,107,214,.28);}

/* ---------- 内页首屏 ---------- */
.page-banner{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background:#EEF3FB;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.22;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(246,248,251,.96) 0%,rgba(246,248,251,.86) 46%,rgba(232,241,254,.55) 100%);
}
.page-banner__inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;align-items:center;
  padding:56px 0 60px;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{color:var(--ink-3);}
.breadcrumb .current{color:var(--primary);font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary-soft);color:var(--primary-dark);
  font-size:13px;font-weight:600;letter-spacing:.08em;
  padding:6px 14px;border-radius:999px;border:1px solid rgba(30,107,214,.18);
  margin-bottom:18px;
}
.page-banner h1{
  font-size:36px;line-height:1.3;font-weight:700;letter-spacing:.01em;
  max-width:18em;
}
.page-banner h1 em{
  font-style:normal;color:var(--primary);
  box-shadow:inset 0 -.34em 0 rgba(30,107,214,.16);
}
.lead{margin-top:16px;font-size:16px;line-height:1.8;color:var(--ink-2);max-width:34em;}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.banner-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;}
.banner-points li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2);}
.tick{
  width:18px;height:18px;border-radius:50%;flex:0 0 auto;
  background:var(--teal-soft);color:var(--teal);
  display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;
}
.banner-media{position:relative;}
.banner-frame{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-md);
  background:linear-gradient(150deg,#DCE7F7,#EEF3FB);
  aspect-ratio:4/3;
}
.banner-frame img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.stamp{
  position:absolute;right:-10px;top:-14px;z-index:3;
  transform:rotate(6deg);
  background:var(--amber);color:#3A2405;
  font-size:12px;font-weight:700;letter-spacing:.1em;
  padding:8px 14px;border-radius:6px;
  border:2px solid #fff;box-shadow:var(--shadow-md);
}
.banner-note{
  position:absolute;left:16px;bottom:16px;z-index:3;
  background:rgba(255,255,255,.96);border:1px solid var(--line);
  border-radius:10px;padding:10px 14px;font-size:13px;color:var(--ink-2);
  box-shadow:var(--shadow-sm);display:flex;align-items:center;gap:8px;max-width:calc(100% - 32px);
}
.banner-note strong{color:var(--ink);font-weight:600;}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--teal);flex:0 0 auto;box-shadow:0 0 0 3px var(--teal-soft);}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;scroll-margin-top:140px;}
.section--alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px;flex-wrap:wrap;}
.kicker{
  display:inline-block;background:var(--primary-soft);color:var(--primary-dark);
  font-size:13px;font-weight:600;letter-spacing:.1em;
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{font-size:28px;line-height:1.35;font-weight:600;max-width:22em;}
.section-head p{font-size:15px;color:var(--ink-2);max-width:30em;line-height:1.8;}
.rule{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- 图文交错 ---------- */
.split{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:56px;align-items:center;
}
.split + .split{margin-top:72px;}
.split--reverse .split__media{order:2;}
.split__media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-md);background:var(--bg-alt);
  aspect-ratio:16/11;
}
.split__media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.split__media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.5);
  border-radius:inherit;
}
.split__body h3{font-size:22px;margin-bottom:14px;}
.split__body p{color:var(--ink-2);font-size:15.5px;line-height:1.85;}
.check-list{margin-top:20px;display:grid;gap:12px;}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);line-height:1.7;}
.check-list .tick{margin-top:4px;}
.split__foot{margin-top:24px;}

/* ---------- 特性卡 2 列 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.feature-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.feature-card::after{
  content:"";position:absolute;inset:6px;border:1px dashed rgba(30,107,214,.16);
  border-radius:8px;pointer-events:none;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(30,107,214,.28);}
.feature-card h3{font-size:18px;margin-bottom:10px;display:flex;align-items:center;gap:10px;}
.feature-num{
  font-size:13px;font-weight:700;color:var(--primary);
  background:var(--primary-soft);border-radius:6px;padding:2px 8px;letter-spacing:.08em;
}
.feature-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.badge{
  font-size:12.5px;padding:4px 10px;border-radius:999px;
  background:var(--bg-alt);color:var(--ink-2);border:1px solid var(--line);
}
.badge--teal{background:var(--teal-soft);color:#0A7D73;border-color:rgba(15,181,166,.25);}

/* ---------- 提示条 ---------- */
.notice-bar{
  margin-top:32px;border-radius:var(--radius);
  background:#101C2E;color:#DCE6F4;
  padding:24px 28px;display:flex;gap:18px;align-items:flex-start;
  border:1px solid #1E2E45;
  box-shadow:var(--shadow-md);
}
.notice-bar .notice-mark{
  flex:0 0 auto;width:34px;height:34px;border-radius:9px;
  background:rgba(245,165,36,.16);color:var(--amber);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  border:1px solid rgba(245,165,36,.35);
}
.notice-bar h3{font-size:16px;color:#fff;margin-bottom:6px;}
.notice-bar p{font-size:14.5px;line-height:1.8;color:#AFC0D6;}

/* ---------- 步骤 ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  counter-reset:step;
}
.step{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;position:relative;box-shadow:var(--shadow-sm);
  transition:transform var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);}
.step__num{
  font-size:26px;font-weight:700;color:var(--primary);letter-spacing:.06em;line-height:1;
  margin-bottom:14px;
}
.step__num small{font-size:12px;color:var(--ink-3);font-weight:600;letter-spacing:.14em;display:block;margin-top:6px;}
.step h3{font-size:16.5px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--ink-2);line-height:1.75;}
.step__line{
  position:absolute;top:36px;right:-14px;width:8px;height:2px;background:var(--line);
}
.step:last-child .step__line{display:none;}

/* ---------- 排错清单 ---------- */
.trouble-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.trouble{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--primary);
  border-radius:10px;padding:18px 20px;box-shadow:var(--shadow-sm);
  transition:border-left-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.trouble:hover{border-left-color:var(--teal);transform:translateX(2px);box-shadow:var(--shadow-md);}
.trouble h3{font-size:15.5px;margin-bottom:4px;}
.trouble p{font-size:14px;color:var(--ink-2);line-height:1.75;}
.trouble__tag{
  flex:0 0 auto;font-size:12px;font-weight:700;letter-spacing:.08em;
  padding:4px 8px;border-radius:6px;background:var(--amber-soft);color:#8A5A06;
  border:1px solid rgba(245,165,36,.35);
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:rgba(30,107,214,.3);}
.faq-item.is-open{border-color:rgba(30,107,214,.42);box-shadow:var(--shadow-md);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;text-align:left;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);
  min-height:44px;transition:color var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:600;line-height:1;
  transition:transform var(--ease),background var(--ease),color var(--ease);
}
.faq-item.is-open .faq-icon{background:var(--primary);color:#fff;transform:rotate(45deg);}
.faq-a{
  display:none;padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);
  max-width:46em;
}
.faq-item.is-open .faq-a{display:block;}

/* ---------- CTA ---------- */
.cta-band{
  margin:0 auto;max-width:1200px;
  background:linear-gradient(120deg,#E8F1FE 0%,#F1F5FB 55%,#E3F7F5 100%);
  border:1px solid rgba(30,107,214,.18);
  border-radius:var(--radius-lg);
  padding:52px 48px;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);
  gap:32px;align-items:center;
  box-shadow:var(--shadow-md);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-60px;width:200px;height:200px;border-radius:50%;
  border:2px dashed rgba(30,107,214,.18);
}
.cta-band h2{font-size:26px;margin-bottom:12px;}
.cta-band p{font-size:15px;color:var(--ink-2);line-height:1.8;max-width:36em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
.cta-band__inner{position:relative;z-index:2;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;
  height:46px;padding:0 22px;border-radius:999px;
  background:var(--amber);color:#3A2405;font-weight:700;font-size:15px;
  box-shadow:0 10px 24px rgba(245,165,36,.36);
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease);
}
.float-cta:hover{background:#FFB63C;color:#3A2405;transform:translateY(-2px);box-shadow:0 14px 30px rgba(245,165,36,.45);}
.float-cta:active{transform:translateY(0);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  background:#0F1B2D;color:#B9C7DA;
  padding:64px 0 0;
  border-top:1px solid #1E2E45;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo__main{color:#fff;}
.footer-brand .logo__pre{color:#8FA3BD;}
.footer-brand p{font-size:14px;line-height:1.85;color:#93A6BF;margin-top:16px;max-width:26em;}
.footer-col h3{font-size:14px;color:#fff;letter-spacing:.1em;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#A9BACF;border-bottom:1px solid transparent;padding-bottom:1px;}
.footer-col a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.5);}
.footer-col p{font-size:13.5px;color:#93A6BF;line-height:1.8;}
.subscribe{display:flex;gap:8px;margin-top:14px;}
.subscribe input{
  flex:1 1 auto;height:42px;border-radius:8px;border:1px solid #2A3B54;
  background:#16233A;color:#E6EEF9;padding:0 12px;font-size:14px;min-width:0;
}
.subscribe input::placeholder{color:#7186A2;}
.subscribe input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,107,214,.28);}
.subscribe button{
  flex:0 0 auto;height:42px;padding:0 16px;border-radius:8px;border:0;
  background:var(--primary);color:#fff;font-weight:600;font-size:14px;
  transition:background var(--ease);
}
.subscribe button:hover{background:#2A7BEA;}
.footer-bottom{
  border-top:1px solid #1E2E45;
  padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:#7E93AF;
}
.footer-bottom a{color:#94A9C4;}
.footer-bottom a:hover{color:#fff;}
.footer-links{display:flex;flex-wrap:wrap;gap:16px;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .page-banner__inner{grid-template-columns:1fr;gap:36px;padding:44px 0 48px;}
  .page-banner h1{font-size:32px;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split--reverse .split__media{order:0;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step__line{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .cta-actions{justify-content:flex-start;}
  .section{padding:64px 0;}
  .nav-search{max-width:220px;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .nav-top__inner{gap:14px;min-height:64px;flex-wrap:nowrap;}
  .nav-search{display:none;}
  .nav-actions{gap:10px;}
  .nav-link{display:none;}
  .logo__main{font-size:18px;}
  .nav-sub__scroll{height:48px;gap:8px;}
  .nav-pill{height:34px;font-size:14px;padding:0 14px;}
  .feature-grid{grid-template-columns:1fr;}
  .trouble-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:23px;}
  .page-banner h1{font-size:27px;}
  .split__body h3{font-size:19px;}
  .float-cta{
    right:12px;left:12px;bottom:0;height:52px;width:auto;
    border-radius:12px 12px 0 0;justify-content:center;
    padding-bottom:env(safe-area-inset-bottom);
  }
  body{padding-bottom:52px;}
  .site-footer{margin-top:64px;padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .notice-bar{padding:20px;flex-direction:column;gap:12px;}
  .cta-band{padding:32px 22px;}
  .cta-band h2{font-size:22px;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a{padding:0 18px 18px;font-size:14.5px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .banner-actions .btn{width:100%;}
  .banner-points{gap:8px 16px;}
  .btn{height:48px;}
  .btn--sm{height:38px;}
  .step{padding:20px;}
  .feature-card{padding:22px;}
  .section{padding:52px 0;}
}

/* roulang page: category3 */
:root{
  --paper:#f7f5ef;
  --paper-2:#f0ece1;
  --card:#fffdf9;
  --ink:#14243c;
  --ink-2:#43536b;
  --ink-3:#7d8798;
  --line:#e4ddcd;
  --line-2:#cbc1ac;
  --brand:#1f5fb0;
  --brand-deep:#16406f;
  --brand-soft:#e8eefa;
  --teal:#177f6f;
  --teal-soft:#e3f2ee;
  --amber:#c47a1c;
  --amber-soft:#fbf0dd;
  --danger:#b8402f;
  --radius:10px;
  --radius-lg:14px;
  --shadow-sm:0 1px 2px rgba(20,36,60,.07);
  --shadow-md:0 10px 26px rgba(20,36,60,.09);
  --shadow-lg:0 18px 44px rgba(20,36,60,.16);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-serif:"Songti SC","Source Han Serif SC","Noto Serif SC","SimSun",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background-color:var(--paper);
  background-image:radial-gradient(rgba(20,36,60,.05) 1px,transparent 1px);
  background-size:22px 22px;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .18s}
a:hover{color:var(--brand-deep)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;line-height:1.35;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input,button,textarea{font-family:inherit}
:focus-visible{outline:3px solid rgba(31,95,176,.4);outline-offset:2px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.narrow{max-width:860px;margin:0 auto}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60}
.nav-top{background:var(--card);border-bottom:1px solid var(--line);transition:box-shadow .22s}
.site-header.is-scrolled .nav-top{box-shadow:var(--shadow-md)}
.nav-top__inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand);flex:0 0 auto}
.logo__mark{width:32px;height:32px;flex:0 0 auto}
.logo__text{display:flex;flex-direction:column;line-height:1.1}
.logo__pre{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-3)}
.logo__main{font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--ink)}
.logo__main b{color:var(--brand)}
.nav-search{
  flex:1 1 300px;max-width:360px;display:flex;align-items:center;gap:8px;
  background:var(--paper-2);border:1px solid transparent;border-radius:999px;
  padding:0 16px;height:42px;transition:background .18s,border-color .18s,box-shadow .18s;
}
.nav-search svg{width:18px;height:18px;color:var(--ink-3);flex:0 0 auto}
.nav-search input{border:0;background:transparent;outline:none;width:100%;height:100%;font-size:14px;color:var(--ink)}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,95,176,.16)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:18px}
.nav-link{font-size:15px;color:var(--ink-2);white-space:nowrap}
.nav-link:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;border:1px solid var(--line-2);
  border-radius:10px;background:#fff;cursor:pointer;padding:0;flex-direction:column;
  align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{background:var(--card);border-bottom:1px solid var(--line);box-shadow:var(--shadow-md)}
.mobile-drawer .container{padding-top:16px;padding-bottom:18px;display:flex;flex-direction:column;gap:12px}
.mobile-drawer .nav-search{max-width:100%;flex:0 0 auto;width:100%}
.mobile-drawer a.drawer-link{
  display:flex;justify-content:space-between;align-items:center;padding:12px 4px;
  font-size:15px;color:var(--ink-2);border-bottom:1px dashed var(--line);
}
.mobile-drawer a.drawer-link:hover{color:var(--brand)}
.nav-sub{background:var(--paper-2);border-bottom:1px solid var(--line)}
.nav-sub__scroll{
  display:flex;gap:8px;overflow-x:auto;padding:8px 0;scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-sub__scroll::-webkit-scrollbar{display:none}
.nav-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;font-size:15px;color:var(--ink-2);scroll-snap-align:start;
  transition:background .18s,color .18s,box-shadow .18s;white-space:nowrap;
}
.nav-pill:hover{background:#fff;color:var(--brand)}
.nav-pill.is-active{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm)}
.nav-pill.is-active:hover{background:var(--brand-deep);color:#fff}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;
  padding:0 24px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .16s ease,background .16s ease,box-shadow .16s ease,color .16s ease,border-color .16s ease;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(31,95,176,.24)}
.btn--primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(31,95,176,.3)}
.btn--primary:active{transform:translateY(1px);box-shadow:0 4px 10px rgba(31,95,176,.24)}
.btn--ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn--ghost:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(1px)}
.btn--amber{background:var(--amber);color:#fff;box-shadow:0 6px 16px rgba(196,122,28,.28)}
.btn--amber:hover{background:#a9650f;color:#fff;transform:translateY(-2px)}
.btn--sm{height:38px;padding:0 18px;font-size:14px}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:#14243c;color:#fff}
.page-hero__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,28,48,.7),rgba(15,28,48,.9));
}
.page-hero__inner{position:relative;z-index:2;padding:52px 0 60px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.7)}
.crumb a{color:rgba(255,255,255,.88)}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.crumb .sep{opacity:.5}
.crumb .now{color:#f0c27b}
.page-hero h1{font-size:36px;margin:18px 0 14px;color:#fff;letter-spacing:.5px;max-width:820px}
.page-hero h1 em{font-style:normal;color:#f0c27b}
.page-hero__lead{font-size:16px;line-height:1.85;color:rgba(255,255,255,.84);max-width:680px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 14px;border-radius:999px;
  font-size:13px;color:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.32);
  background:rgba(255,255,255,.08);
}
.hero-note{
  margin-top:22px;font-size:13px;color:rgba(255,255,255,.62);
  display:inline-flex;align-items:center;gap:8px;
}
.hero-note::before{content:"";width:6px;height:6px;border-radius:50%;background:#8dd0c4}

/* ---------- Sections ---------- */
.section{padding:64px 0}
.section--alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:26px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;
  color:var(--brand);background:var(--brand-soft);border:1px dashed var(--brand);
  border-radius:999px;padding:4px 14px;margin-bottom:14px;
}
.section-title{font-size:28px;letter-spacing:.4px}
.section-desc{color:var(--ink-2);font-size:15px;line-height:1.85;margin-top:10px;max-width:700px}

/* 搜索与筛选 */
.search-panel{
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:22px;display:flex;flex-direction:column;gap:16px;
}
.search-field{
  display:flex;align-items:center;gap:10px;height:48px;background:#fff;
  border:1px solid var(--line-2);border-radius:10px;padding:0 16px;
  transition:border-color .18s,box-shadow .18s;
}
.search-field svg{width:18px;height:18px;color:var(--ink-3);flex:0 0 auto}
.search-field input{flex:1;border:0;outline:none;background:transparent;font-size:15px;color:var(--ink);height:100%}
.search-field input::placeholder{color:var(--ink-3)}
.search-field:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,95,176,.14)}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.filter-label{font-size:13px;color:var(--ink-3);margin-right:2px}
.chip{
  height:36px;padding:0 16px;border-radius:999px;border:1px solid var(--line-2);
  background:#fff;color:var(--ink-2);font-size:14px;cursor:pointer;
  transition:background .18s,color .18s,border-color .18s,transform .18s;
}
.chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff}
.chip.is-active:hover{background:var(--brand-deep);color:#fff}

/* 快速入口 */
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
.quick-card{
  display:block;background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.quick-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand)}
.quick-card__idx{
  font-family:var(--font-serif);font-size:13px;color:var(--amber);
  border:1px solid var(--amber);border-radius:6px;padding:1px 8px;display:inline-block;margin-bottom:12px;
}
.quick-card h3{font-size:17px;margin-bottom:8px;color:var(--ink)}
.quick-card p{font-size:14px;line-height:1.7;color:var(--ink-2)}
.quick-card .arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand);margin-top:12px}

/* 速览图文 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.figure{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line-2);
  box-shadow:var(--shadow-md);background:var(--paper-2);position:relative;
}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.figure__cap{
  position:absolute;left:12px;bottom:12px;background:rgba(20,36,60,.82);color:#fff;
  font-size:12px;padding:5px 12px;border-radius:999px;letter-spacing:.04em;
}
.step-list{display:flex;flex-direction:column;gap:18px;margin-top:22px}
.step-list li{display:flex;gap:14px;align-items:flex-start}
.step-num{
  flex:0 0 auto;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--font-serif);font-size:15px;color:var(--brand);
  background:var(--brand-soft);border:1px solid #c8d8ef;
}
.step-body strong{display:block;font-size:16px;color:var(--ink);margin-bottom:4px;font-weight:600}
.step-body span{font-size:14px;line-height:1.75;color:var(--ink-2)}

/* FAQ */
.faq-group{margin-bottom:40px}
.faq-group:last-child{margin-bottom:0}
.group-head{display:flex;align-items:center;gap:12px;padding-bottom:12px;margin-bottom:16px;border-bottom:1px dashed var(--line-2)}
.group-head .num{
  font-family:var(--font-serif);font-size:14px;color:var(--amber);border:1px solid var(--amber);
  border-radius:6px;padding:1px 9px;flex:0 0 auto;
}
.group-head h3{font-size:20px;letter-spacing:.4px}
.group-head .count{margin-left:auto;font-size:13px;color:var(--ink-3);flex:0 0 auto}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item:hover{box-shadow:var(--shadow-md)}
.faq-item.is-open{border-color:var(--brand);box-shadow:var(--shadow-md)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;transition:color .18s;
}
.faq-q:hover{color:var(--brand)}
.faq-item.is-open .faq-q{color:var(--brand)}
.faq-sign{position:relative;width:20px;height:20px;flex:0 0 auto}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);
  border-radius:2px;transition:transform .24s ease;
}
.faq-sign::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-sign::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item.is-open .faq-sign::after{transform:translate(-50%,-50%) rotate(90deg) scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a__inner{
  padding:14px 20px 20px;border-top:1px solid var(--line);
  font-size:15px;line-height:1.85;color:var(--ink-2);
}
.faq-a__inner strong{color:var(--ink);font-weight:600}
.empty-state{
  display:none;padding:44px 24px;text-align:center;border:1px dashed var(--line-2);
  border-radius:var(--radius);background:var(--card);color:var(--ink-2);font-size:15px;
}
.empty-state.is-visible{display:block}
.empty-state svg{width:36px;height:36px;color:var(--ink-3);margin:0 auto 12px}

/* 联系卡 */
.contact-card{
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);padding:36px;display:grid;grid-template-columns:1.15fr .85fr;
  gap:34px;align-items:center;position:relative;overflow:hidden;
}
.contact-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:5px;
  background:linear-gradient(180deg,var(--brand),var(--teal));
}
.contact-card h2{font-size:26px;margin-bottom:12px}
.contact-card p{font-size:15px;line-height:1.85;color:var(--ink-2)}
.contact-list{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 22px}
.contact-list li{
  font-size:13px;color:var(--teal);background:var(--teal-soft);
  border:1px solid #bfe3da;border-radius:999px;padding:4px 12px;
}
.contact-actions{display:flex;flex-wrap:wrap;gap:12px}
.contact-figure{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-2);background:var(--paper-2)}
.contact-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:80;display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;border-radius:999px;background:var(--amber);color:#fff;
  font-size:15px;font-weight:600;box-shadow:0 12px 28px rgba(196,122,28,.38);
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease;
}
.float-cta:hover{background:#a9650f;color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(196,122,28,.46)}
.float-cta:active{transform:translateY(1px)}
.float-cta svg{width:18px;height:18px}

/* ---------- Footer ---------- */
.site-footer{background:#14243c;color:rgba(255,255,255,.72);padding-top:56px;margin-top:24px}
.foot-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;
  padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.14);
}
.foot-logo{display:inline-block;font-family:var(--font-serif);font-size:20px;font-weight:700;color:#fff;margin-bottom:12px}
.foot-logo b{color:#8fb6ea}
.foot-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66)}
.foot-col h3{font-size:15px;color:#fff;margin-bottom:14px;letter-spacing:.08em}
.foot-col li{margin-bottom:10px;font-size:14px}
.foot-col li a{color:rgba(255,255,255,.72)}
.foot-col li a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.foot-quote{
  display:flex;align-items:center;gap:10px;margin-top:14px;padding:12px 14px;
  border:1px dashed rgba(255,255,255,.2);border-radius:10px;background:rgba(255,255,255,.05);
}
.avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;flex:0 0 auto;
  background:#8fb6ea;color:#14243c;font-weight:700;font-size:15px;
}
.foot-quote cite{display:block;font-style:normal;font-size:14px;color:#fff}
.foot-quote small{font-size:12px;color:rgba(255,255,255,.55)}
.foot-form{display:flex;gap:8px;margin-top:14px}
.foot-form input{
  flex:1;min-width:0;height:42px;border-radius:10px;border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);color:#fff;padding:0 12px;font-size:14px;outline:none;
  transition:border-color .18s,box-shadow .18s;
}
.foot-form input::placeholder{color:rgba(255,255,255,.45)}
.foot-form input:focus{border-color:#8fb6ea;box-shadow:0 0 0 3px rgba(143,182,234,.22)}
.foot-form button{
  height:42px;padding:0 16px;border-radius:10px;border:0;background:var(--amber);color:#fff;
  font-size:14px;font-weight:600;cursor:pointer;transition:background .18s,transform .18s;
}
.foot-form button:hover{background:#a9650f;transform:translateY(-1px)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:20px 0 24px;font-size:13px;color:rgba(255,255,255,.52);
}
.foot-bottom a{color:rgba(255,255,255,.62)}
.foot-bottom a:hover{color:#fff;text-decoration:underline}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:56px 0}
  .split{grid-template-columns:1fr;gap:28px}
  .contact-card{grid-template-columns:1fr;gap:24px;padding:28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .page-hero h1{font-size:32px}
}
@media (max-width:900px){
  .nav-search{display:none}
}
@media (max-width:767px){
  .quick-grid{grid-template-columns:1fr}
  .section-title{font-size:24px}
  .section-desc{font-size:14px}
  .page-hero__inner{padding:38px 0 46px}
  .page-hero h1{font-size:28px}
  .page-hero__lead{font-size:15px}
  .group-head h3{font-size:18px}
  .faq-q{font-size:15px;padding:16px}
  .faq-a__inner{padding:12px 16px 18px;font-size:14.5px}
  .contact-card h2{font-size:22px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .nav-actions{display:none}
  .nav-toggle{display:flex}
  .nav-top__inner{height:64px;gap:12px}
  .section{padding:44px 0}
  .section-head{margin-bottom:20px}
  .search-panel{padding:16px}
  .float-cta{
    left:16px;right:16px;bottom:0;justify-content:center;height:52px;border-radius:12px 12px 0 0;
    padding-bottom:0;box-shadow:0 -6px 20px rgba(196,122,28,.3);
  }
  body{padding-bottom:64px}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .btn{height:46px;padding:0 20px}
  .contact-actions .btn{width:100%}
}