/* roulang page: index */
:root{
  --brand-900:#0C3A5E;
  --brand-700:#125D92;
  --brand-600:#1573B4;
  --brand-500:#2E8FD0;
  --brand-100:#DCEDF9;
  --brand-50:#F1F8FD;
  --accent-500:#FF7A2B;
  --mint-500:#12B3A0;
  --ink-900:#0E1A24;
  --ink-600:#45596B;
  --ink-400:#7C8FA1;
  --line:#E4EDF5;
  --bg:#F6F9FC;
  --white:#FFFFFF;
  --r-card:16px;
  --r-hero:20px;
  --r-btn:10px;
  --sh-1:0 2px 8px rgba(14,58,94,.06);
  --sh-2:0 10px 26px rgba(14,58,94,.10);
  --sh-3:0 18px 44px rgba(14,58,94,.14);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,Inter,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{color:var(--ink-900);font-weight:700;margin:0}
h1{font-size:44px;line-height:1.25}
h2{font-size:30px;line-height:1.35}
h3{font-size:21px;line-height:1.5;font-weight:600}
p{margin:0}
a{color:var(--brand-600);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--brand-700)}
img{display:block;max-width:100%;height:auto}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:92px 0}
.section-sm{padding:64px 0}
.bg-soft{background:var(--brand-50)}
.bg-white{background:#fff}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);transition:box-shadow .24s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.nav-inner{display:flex;align-items:center;height:70px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:30px;height:30px;flex:0 0 auto}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.5px;color:var(--ink-900);white-space:nowrap}
.brand:hover .brand-text{color:var(--brand-700)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:70px;
  padding:0 13px;font-size:15px;font-weight:500;color:var(--ink-600);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:13px;height:3px;border-radius:3px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav-links a:hover{color:var(--brand-600)}
.nav-links a.active{color:var(--brand-600);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-box{position:relative}
.search-box svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--ink-400)}
.search-box input{
  height:40px;width:212px;border-radius:999px;border:1px solid var(--line);
  background:var(--bg);padding:0 16px 0 40px;font-size:14px;color:var(--ink-900);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box input::placeholder{color:var(--ink-400)}
.search-box input:focus{outline:none;border-color:var(--brand-600);background:#fff;box-shadow:0 0 0 3px rgba(21,115,180,.15)}
.nav-login{font-size:15px;font-weight:500;color:var(--ink-600);padding:6px 4px;white-space:nowrap}
.nav-login:hover{color:var(--brand-600)}
.btn-start{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--brand-600);color:#fff;font-size:15px;font-weight:600;
  border:1px solid var(--brand-600);white-space:nowrap;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-start:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.hamburger{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;color:var(--ink-900);cursor:pointer;
}
.hamburger:hover{border-color:var(--brand-600);color:var(--brand-600)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,26,36,.35);opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;z-index:1040;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:302px;max-width:86vw;background:#fff;z-index:1050;
  transform:translateX(102%);transition:transform .28s ease;display:flex;flex-direction:column;
  padding:22px 22px 26px;box-shadow:var(--sh-3);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--ink-600)}
.drawer-close:hover{color:var(--brand-600);border-color:var(--brand-600)}
.drawer nav{display:flex;flex-direction:column;gap:4px}
.drawer nav a{
  padding:12px 14px;border-radius:12px;font-size:16px;color:var(--ink-600);font-weight:500;
}
.drawer nav a:hover,.drawer nav a.active{background:var(--brand-50);color:var(--brand-700)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:18px;border-top:1px solid var(--line)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--brand-600);background:#fff;color:var(--brand-600);font-size:15px;font-weight:600;
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);transform:translateY(-1px)}

/* ---------- hero ---------- */
.hero{background:linear-gradient(180deg,#fff 0%,var(--brand-50) 100%);padding:64px 0 76px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:var(--brand-100);color:var(--brand-700);
  font-size:12.5px;letter-spacing:.3px;font-weight:600;padding:7px 14px;border-radius:999px;margin-bottom:20px;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--mint-500);display:inline-block}
.hero h1{font-size:44px;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--brand-600)}
.hero-sub{font-size:17px;line-height:1.9;max-width:620px;color:var(--ink-600)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 26px}
.btn-main{
  display:inline-flex;align-items:center;gap:9px;height:48px;padding:0 26px;border-radius:var(--r-btn);
  background:var(--brand-600);color:#fff;font-size:16px;font-weight:600;border:1px solid var(--brand-600);
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-main:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-sub{
  display:inline-flex;align-items:center;gap:9px;height:48px;padding:0 24px;border-radius:var(--r-btn);
  background:#fff;color:var(--brand-600);font-size:16px;font-weight:600;border:1px solid var(--brand-600);
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.btn-sub:hover{background:var(--brand-50);color:var(--brand-700);transform:translateY(-1px)}
.hero-facts{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--ink-400)}
.hero-facts span{display:inline-flex;align-items:center;gap:8px}
.hero-facts span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint-500)}
.hero-media{position:relative;border-radius:var(--r-hero);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2)}
.hero-media img{width:100%;height:auto;aspect-ratio:6/5;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(220,237,249,.35) 0%,rgba(21,115,180,.20) 100%);
  pointer-events:none;
}
.hero-badge{
  position:absolute;left:20px;bottom:20px;z-index:2;background:rgba(255,255,255,.94);
  border:1px solid var(--line);border-radius:12px;padding:10px 16px;font-size:13.5px;font-weight:600;
  color:var(--brand-900);box-shadow:var(--sh-1);
}

/* ---------- topic nav ---------- */
.topic-bar{background:var(--brand-50);border:1px solid var(--line);border-radius:var(--r-hero);padding:16px 20px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.topic-bar .tb-label{font-size:14px;font-weight:700;color:var(--ink-900);white-space:nowrap}
.topic-pills{display:flex;gap:10px;overflow-x:auto;padding-bottom:2px}
.topic-pills::-webkit-scrollbar{height:0}
.pill{
  display:inline-flex;align-items:center;gap:9px;white-space:nowrap;
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;
  font-size:14.5px;font-weight:500;color:var(--brand-700);transition:all .22s ease;
}
.pill b{color:var(--accent-500);font-weight:700;font-variant-numeric:tabular-nums}
.pill:hover{border-color:var(--brand-600);transform:translateY(-2px);box-shadow:var(--sh-1);color:var(--brand-600)}

/* ---------- section head ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:38px}
.sec-head .sh-text{max-width:660px}
.sec-head h2{margin-bottom:12px}
.sec-head p{font-size:16px;color:var(--ink-600)}
.sec-more{display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:600;white-space:nowrap}
.sec-more:hover{gap:11px}

/* ---------- badges ---------- */
.badge-soft{
  display:inline-flex;align-items:center;background:var(--brand-100);color:var(--brand-700);
  font-size:12.5px;letter-spacing:.3px;font-weight:600;border-radius:999px;padding:4px 12px;
}
.badge-accent{
  display:inline-flex;align-items:center;background:#FFF0E5;color:#C4520B;
  font-size:12.5px;letter-spacing:.3px;font-weight:600;border-radius:999px;padding:4px 12px;
}
.meta-row{display:flex;align-items:center;gap:14px;font-size:13.5px;color:var(--ink-400)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block}

/* ---------- feature cards ---------- */
.card-lg,.card-md,.card-sm{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease;height:100%;
}
.card-lg:hover,.card-md:hover,.card-sm:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-lg{display:grid;grid-template-columns:46% 54%;min-height:372px}
.card-md{display:grid;grid-template-columns:38% 62%;min-height:174px}
.card-sm{display:flex;flex-direction:column}
.card-lg .media{overflow:hidden}
.card-lg .media img{width:100%;height:100%;object-fit:cover}
.card-md .media{overflow:hidden}
.card-md .media img{width:100%;height:100%;object-fit:cover}
.card-sm .media{overflow:hidden}
.card-sm .media img{width:100%;height:168px;object-fit:cover}
.card-body-pad{padding:26px 28px}
.card-md .card-body-pad{padding:20px 22px}
.card-sm .card-body-pad{padding:20px 22px}
.card-lg h3{font-size:22px;margin:14px 0 10px;line-height:1.5}
.card-md h3{font-size:17px;margin:8px 0 6px;line-height:1.55}
.card-sm h3{font-size:17px;margin:10px 0 8px;line-height:1.6}
.card-lg p{font-size:15px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-md p{font-size:14px;color:var(--ink-400);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-sm p{font-size:14px;color:var(--ink-400);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.stack{display:flex;flex-direction:column;gap:24px;height:100%}

/* ---------- news list (CMS) ---------- */
.news-list{border-top:1px solid var(--line)}
.news-row{
  display:grid;grid-template-columns:240px 1fr;gap:26px;padding:24px 18px;
  border-bottom:1px solid var(--line);border-radius:14px;
  transition:background .22s ease,transform .22s ease;
}
.news-row:hover{background:var(--brand-50)}
.news-thumb{border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#fff}
.news-thumb img{width:100%;height:150px;object-fit:cover}
.news-title{font-size:19px;line-height:1.55;margin:10px 0 8px}
.news-title a{color:var(--ink-900)}
.news-title a:hover{color:var(--brand-600)}
.news-desc{font-size:14.5px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;position:relative}
.text-link::after{content:"";position:absolute;left:0;bottom:-3px;height:2px;width:100%;background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform .24s ease}
.text-link:hover::after{transform:scaleX(1)}
.empty-state{
  border:2px dashed var(--line);border-radius:var(--r-card);background:#fff;
  padding:56px 24px;text-align:center;
}
.empty-state .es-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;background:var(--brand-50);
  display:flex;align-items:center;justify-content:center;color:var(--brand-500);
}
.empty-state p{font-size:15px;color:var(--ink-400);margin-bottom:20px}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px 24px;
  box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease;
}
.stat:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.stat .s-num{font-size:34px;font-weight:700;color:var(--brand-600);line-height:1.2;font-variant-numeric:tabular-nums}
.stat .s-label{font-size:15px;font-weight:600;color:var(--ink-900);margin:8px 0 6px}
.stat .s-desc{font-size:13.5px;color:var(--ink-400);line-height:1.7}

/* ---------- recommend ---------- */
.rec-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease;height:100%;
  display:flex;flex-direction:column;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.rec-card img{width:100%;height:132px;object-fit:cover}
.rec-card .rc-body{padding:16px 18px 20px}
.rec-card h3{font-size:15.5px;line-height:1.6;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-card h3 a{color:var(--ink-900)}
.rec-card h3 a:hover{color:var(--brand-600)}
.rec-card .rc-time{font-size:13px;color:var(--ink-400);font-variant-numeric:tabular-nums}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto}
.faq .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;
  overflow:hidden;box-shadow:var(--sh-1);transition:border-color .22s ease;
}
.faq .accordion-item:hover{border-color:#CFE2F1}
.faq .accordion-header{margin:0}
.faq .accordion-button{
  position:relative;background:#fff;color:var(--ink-900);font-size:16.5px;font-weight:600;
  padding:20px 58px 20px 22px;border:0;box-shadow:none!important;width:100%;
}
.faq .accordion-button:not(.collapsed){color:var(--brand-700);background:#fff}
.faq .accordion-button::after{
  content:"";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:20px;height:20px;background-image:none;margin:0;
  background:
    linear-gradient(var(--brand-600),var(--brand-600)) center/12px 2px no-repeat,
    linear-gradient(var(--brand-600),var(--brand-600)) center/2px 12px no-repeat;
  transition:transform .24s ease;
}
.faq .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg)}
.faq .accordion-body{padding:0 22px 22px;font-size:15px;color:var(--ink-600);line-height:1.85}
.faq .accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--brand-600)}

/* ---------- CTA banner ---------- */
.cta-banner{
  background:var(--brand-50);border:1px solid var(--line);border-radius:var(--r-hero);
  padding:44px 40px;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-banner::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:linear-gradient(90deg,var(--brand-600) 0%,var(--accent-500) 60%,#FFB27A 100%);
}
.cta-banner h2{font-size:26px;margin-bottom:10px}
.cta-banner p{font-size:15.5px;color:var(--ink-600);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn-accent{
  display:inline-flex;align-items:center;gap:9px;height:48px;padding:0 26px;border-radius:var(--r-btn);
  background:var(--accent-500);color:#fff;font-size:16px;font-weight:600;border:1px solid var(--accent-500);
  transition:filter .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-accent:hover{filter:brightness(.94);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,122,43,.28)}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand span{font-size:17px;font-weight:700;color:var(--ink-900);letter-spacing:.4px}
.footer-desc{font-size:14.5px;color:var(--ink-600);line-height:1.85;max-width:320px}
.site-footer h4{font-size:15px;font-weight:700;color:var(--ink-900);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14.5px;color:var(--ink-600)}
.footer-links a:hover{color:var(--brand-600)}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-400);
}
.footer-bottom .fb-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom .fb-links a{font-size:13px;color:var(--ink-400)}
.footer-bottom .fb-links a:hover{color:var(--brand-600)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-links a{padding:0 10px;font-size:14.5px}
  .search-box input{width:180px}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  h1{font-size:34px}
  h2{font-size:25px}
  .hero{padding:44px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:33px}
  .hero-media img{aspect-ratio:16/9}
  .nav-links,.search-box,.nav-login{display:none}
  .hamburger{display:inline-flex}
  .nav-inner{height:64px}
  .section{padding:68px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px}
  .card-lg{grid-template-columns:1fr;min-height:0}
  .card-lg .media img{height:240px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  h1{font-size:29px}
  h2{font-size:23px}
  .hero h1{font-size:29px}
  .hero-actions{gap:12px}
  .btn-main,.btn-sub,.btn-accent{width:100%;justify-content:center}
  .section{padding:56px 0}
  .section-sm{padding:48px 0}
  .card-body-pad{padding:18px}
  .card-md{grid-template-columns:1fr;min-height:0}
  .card-md .media img{height:170px}
  .card-md .card-body-pad{padding:18px}
  .news-row{grid-template-columns:1fr;gap:16px;padding:20px 12px}
  .news-thumb img{height:190px}
  .stats{grid-template-columns:1fr}
  .cta-banner{padding:30px 22px}
  .cta-actions{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --brand-900:#0C3A5E;
  --brand-700:#125D92;
  --brand-600:#1573B4;
  --brand-500:#2E8FD0;
  --brand-100:#DCEDF9;
  --brand-50:#F1F8FD;
  --accent-500:#FF7A2B;
  --mint-500:#12B3A0;
  --ink-900:#0E1A24;
  --ink-600:#45596B;
  --ink-400:#7C8FA1;
  --line:#E4EDF5;
  --bg:#F6F9FC;
  --white:#FFFFFF;
  --radius-card:16px;
  --radius-big:20px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(14,58,94,.06);
  --shadow-2:0 10px 26px rgba(14,58,94,.10);
  --shadow-3:0 18px 44px rgba(14,58,94,.14);
  --ease:220ms ease;
  --container:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-600);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,Inter,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-600);text-decoration:none;transition:color var(--ease),background-color var(--ease)}
a:hover{color:var(--brand-700)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700}
p{margin:0}
ul,ol{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px}
.wrap{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--white);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:box-shadow var(--ease),background-color var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-2)}
.header-inner{display:flex;align-items:center;gap:28px;height:70px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink-900)}
.brand:hover{color:var(--ink-900)}
.brand-mark{width:30px;height:30px;flex:0 0 auto}
.brand span{font-size:18px;font-weight:700;letter-spacing:.5px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-links a{
  position:relative;display:inline-block;padding:8px 12px;
  font-size:15px;color:var(--ink-600);border-radius:8px;white-space:nowrap;
}
.nav-links a:hover{color:var(--brand-600);background:var(--brand-50)}
.nav-links a.active{color:var(--brand-600);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;
  height:3px;border-radius:3px;background:var(--brand-600);
}
.header-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:230px;height:42px;padding:0 16px;
  background:var(--brand-50);border:1px solid var(--line);border-radius:999px;
  transition:border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.search-box i{color:var(--ink-400);font-size:14px}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--ink-900);
}
.search-box input::placeholder{color:var(--ink-400)}
.search-box:focus-within{
  background:var(--white);border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(21,115,180,.14);
}
.btn-text{color:var(--brand-600);font-size:15px;font-weight:500;padding:6px 4px;position:relative}
.btn-text::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.btn-text:hover::after{transform:scaleX(1)}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-600);color:#fff;font-size:15px;font-weight:600;
  padding:11px 22px;border-radius:var(--radius-btn);border:1px solid var(--brand-600);
  transition:background-color var(--ease),transform var(--ease),box-shadow var(--ease),color var(--ease);
  cursor:pointer;
}
.btn-main:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--white);color:var(--brand-600);font-size:15px;font-weight:600;
  padding:11px 22px;border-radius:var(--radius-btn);border:1px solid var(--brand-600);
  transition:background-color var(--ease),transform var(--ease),box-shadow var(--ease);
  cursor:pointer;
}
.btn-ghost:hover{background:var(--brand-50);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-accent{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:600;
  padding:11px 22px;border-radius:var(--radius-btn);border:1px solid var(--accent-500);
  transition:filter var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-accent:hover{filter:brightness(.94);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.menu-toggle{
  display:none;width:42px;height:42px;align-items:center;justify-content:center;
  background:var(--brand-50);border:1px solid var(--line);border-radius:10px;
  color:var(--brand-700);font-size:17px;cursor:pointer;
}
.menu-toggle:hover{background:var(--brand-100)}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,26,36,.35);opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);z-index:1040;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;
  background:var(--white);z-index:1050;padding:22px 20px;
  transform:translateX(102%);transition:transform 240ms ease;
  display:flex;flex-direction:column;gap:6px;box-shadow:var(--shadow-3);
}
.drawer.open{transform:translateX(0)}
.drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer .drawer-title{font-size:16px;font-weight:700;color:var(--ink-900)}
.drawer .drawer-close{
  width:36px;height:36px;border-radius:9px;border:1px solid var(--line);
  background:var(--brand-50);color:var(--brand-700);cursor:pointer;font-size:16px;
}
.drawer a.drawer-link{
  display:block;padding:12px 14px;border-radius:10px;color:var(--ink-600);font-size:15.5px;
}
.drawer a.drawer-link:hover{background:var(--brand-50);color:var(--brand-600)}
.drawer a.drawer-link.active{background:var(--brand-50);color:var(--brand-600);font-weight:600}
.drawer .drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:16px;border-top:1px solid var(--line)}

/* ---------- page head ---------- */
.page-head{
  background:linear-gradient(180deg,var(--brand-50) 0%,var(--white) 100%);
  border-bottom:1px solid var(--line);
  padding:34px 0 38px;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-400);margin-bottom:20px}
.crumbs a{color:var(--ink-400)}
.crumbs a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.crumbs .sep{color:#B9C7D4}
.crumbs .cur{color:var(--brand-600);font-weight:600}
.page-head h1{
  font-size:36px;line-height:1.35;font-weight:700;letter-spacing:-.2px;
  max-width:900px;
}
.meta-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:14px;color:var(--ink-400);
}
.badge-cat{
  display:inline-flex;align-items:center;
  background:var(--brand-100);color:var(--brand-700);
  font-size:12.5px;font-weight:600;letter-spacing:.3px;
  padding:5px 12px;border-radius:999px;
}
.badge-accent{
  display:inline-flex;align-items:center;
  background:var(--accent-500);color:#fff;
  font-size:12.5px;font-weight:600;letter-spacing:.3px;
  padding:5px 12px;border-radius:999px;
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#C9D6E1}
.share-group{display:flex;align-items:center;gap:6px;margin-left:auto}
.share-group a{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;background:var(--white);color:var(--ink-400);
  transition:color var(--ease),border-color var(--ease),transform var(--ease);
}
.share-group a:hover{color:var(--brand-600);border-color:var(--brand-500);transform:translateY(-2px)}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:48px;
  padding:56px 0 8px;
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px}
}
.article-shell{max-width:760px;width:100%}
.article-lead{
  background:var(--brand-50);border-left:3px solid var(--accent-500);
  border-radius:12px;padding:18px 22px;font-size:16.5px;color:var(--ink-600);
  margin-bottom:34px;
}
.article-body{font-size:17px;line-height:1.9;color:var(--ink-600)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  font-size:28px;line-height:1.35;margin:40px 0 16px;padding-left:14px;
  border-left:4px solid var(--brand-600);font-weight:700;
}
.article-body h3{font-size:20px;line-height:1.5;margin:28px 0 12px;font-weight:600}
.article-body h4{font-size:17px;margin:22px 0 10px;color:var(--brand-700)}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 20px}
.article-body li{margin-bottom:10px}
.article-body ul li::marker{color:var(--brand-600)}
.article-body ol li::marker{color:var(--brand-600);font-weight:600}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-700)}
.article-body blockquote{
  margin:0 0 22px;padding:16px 22px;background:var(--brand-50);
  border-left:4px solid var(--brand-600);border-radius:12px;color:var(--ink-600);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  width:100%;border-radius:12px;border:1px solid var(--line);margin:6px 0 10px;
}
.article-body figure{margin:0 0 22px}
.article-body figcaption{
  font-size:13px;color:var(--ink-400);text-align:center;margin-top:8px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body th,.article-body td{
  border:1px solid var(--line);padding:11px 14px;text-align:left;
}
.article-body th{background:var(--brand-50);color:var(--ink-900);font-weight:600}
.article-body code{
  background:var(--brand-50);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14.5px;color:var(--brand-700);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px;padding-top:24px;border-top:1px solid var(--line)}
.tag-row .tag-label{font-size:14px;color:var(--ink-400);align-self:center}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  background:var(--brand-50);border:1px solid var(--line);color:var(--brand-700);
  font-size:13px;transition:background-color var(--ease),transform var(--ease);
}
.tag:hover{background:var(--brand-100);transform:translateY(-1px)}
.empty-state{
  border:1px dashed #C9D9E6;border-radius:var(--radius-card);background:var(--white);
  text-align:center;padding:52px 24px;box-shadow:var(--shadow-1);
}
.empty-state .ico{
  width:56px;height:56px;margin:0 auto 16px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-50);color:var(--brand-500);font-size:22px;
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--ink-400);font-size:15px;margin-bottom:22px}

/* ---------- next read ---------- */
.next-read{margin-top:44px}
.next-read h2{font-size:20px;margin-bottom:18px}
.next-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.next-card{
  display:block;background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px 22px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.next-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.next-card .kicker{font-size:12.5px;color:var(--ink-400);letter-spacing:.3px}
.next-card .ttl{display:block;font-size:17px;font-weight:600;color:var(--ink-900);margin:8px 0 12px;line-height:1.5}
.next-card .go{font-size:14px;color:var(--brand-600);font-weight:600}
.next-card .go i{margin-left:6px;transition:transform var(--ease);display:inline-block}
.next-card:hover .go i{transform:translateX(4px)}

/* ---------- sidebar ---------- */
.article-side{display:none}
@media (min-width:1200px){.article-side{display:block}}
.side-sticky{position:sticky;top:98px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:15.5px;margin-bottom:14px;padding-left:10px;border-left:3px solid var(--brand-600);line-height:1.4}
.side-links{display:flex;flex-direction:column}
.side-links a{
  display:flex;align-items:center;gap:10px;padding:10px 0;font-size:14.5px;
  color:var(--ink-600);border-bottom:1px solid var(--line);
}
.side-links a:last-child{border-bottom:0}
.side-links a:hover{color:var(--brand-600)}
.side-links .num{
  width:22px;height:22px;flex:0 0 auto;border-radius:50%;background:var(--brand-50);
  color:var(--brand-600);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.side-note{font-size:14px;color:var(--ink-400);line-height:1.8}
.side-note strong{color:var(--ink-900);display:block;font-size:15px;margin-bottom:6px}

/* ---------- related ---------- */
.sec{padding:76px 0}
.sec-head{max-width:720px;margin-bottom:34px}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand-600);letter-spacing:.6px;margin-bottom:12px;
}
.sec-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-500);border-radius:2px}
.sec-head h2{font-size:30px;line-height:1.35}
.sec-head p{margin-top:12px;color:var(--ink-400);font-size:15.5px}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.rel-card .thumb{aspect-ratio:3/2;overflow:hidden;background:var(--brand-50)}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease}
.rel-card:hover .thumb img{transform:scale(1.04)}
.rel-card .body{padding:20px 22px 22px}
.rel-card .cat{font-size:12.5px;color:var(--brand-700);background:var(--brand-100);padding:4px 10px;border-radius:999px;display:inline-block;margin-bottom:12px}
.rel-card h3{font-size:17px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card h3 a{color:var(--ink-900)}
.rel-card h3 a:hover{color:var(--brand-600)}
.rel-card .time{margin-top:14px;font-size:13px;color:var(--ink-400)}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:860px}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-1);overflow:hidden;position:relative;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand-600);transform:scaleY(0);transform-origin:top;transition:transform var(--ease);
}
.faq-item.open::before{transform:scaleY(1)}
.faq-item.open{box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:600;color:var(--ink-900);
}
.faq-q .plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--brand-50);
  color:var(--brand-600);display:flex;align-items:center;justify-content:center;
  font-size:15px;transition:transform var(--ease),background-color var(--ease);
}
.faq-item.open .faq-q .plus{transform:rotate(45deg);background:var(--brand-100)}
.faq-a{display:none;padding:0 24px 22px;font-size:15.5px;color:var(--ink-600);line-height:1.85}
.faq-item.open .faq-a{display:block}

/* ---------- cta ---------- */
.cta-band{
  background:var(--brand-50);border:1px solid var(--line);border-radius:var(--radius-big);
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-band h2{font-size:24px;margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--ink-600);max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .bar{
  position:absolute;left:40px;bottom:0;height:3px;width:120px;border-radius:3px;
  background:linear-gradient(90deg,var(--brand-600),var(--accent-500));
}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-50);border-top:1px solid var(--line);padding:56px 0 24px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand span{font-size:17px;font-weight:700;color:var(--ink-900)}
.footer-desc{font-size:14px;color:var(--ink-400);line-height:1.85;max-width:340px}
.site-footer h4{font-size:15px;margin-bottom:16px;color:var(--ink-900)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--ink-600)}
.footer-links a:hover{color:var(--brand-600)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-400);
}
.fb-links{display:flex;gap:18px}
.fb-links a{font-size:13px;color:var(--ink-400)}
.fb-links a:hover{color:var(--brand-600)}

@media (max-width:1399px){
  .sec{padding:72px 0}
}
@media (max-width:1199px){
  .nav-links a{padding:8px 9px;font-size:14.5px}
  .search-box{width:180px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991px){
  .nav-links{display:none}
  .search-box{display:none}
  .btn-text{display:none}
  .menu-toggle{display:inline-flex}
  .page-head h1{font-size:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .sec{padding:60px 0}
  .article-layout{padding-top:44px;gap:36px}
}
@media (max-width:767px){
  .wrap{padding:0 16px}
  .header-inner{height:64px;gap:14px}
  .brand span{font-size:16.5px}
  .btn-main{padding:10px 16px;font-size:14px}
  .page-head{padding:24px 0 28px}
  .page-head h1{font-size:26px}
  .meta-bar{gap:10px;font-size:13px}
  .share-group{margin-left:0;width:100%}
  .article-shell{max-width:100%}
  .article-body{font-size:16.5px;line-height:1.85}
  .article-body h2{font-size:22px;margin:32px 0 14px}
  .article-body h3{font-size:19px}
  .next-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .sec-head h2{font-size:23px}
  .faq-q{padding:16px 18px;font-size:15.5px}
  .faq-a{padding:0 18px 18px}
  .cta-band{padding:26px 20px}
  .cta-band .bar{left:20px}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .page-head h1{font-size:24px;line-height:1.4}
  .article-lead{padding:16px 16px;font-size:15.5px}
  .rel-card .body{padding:18px}
}

/* roulang page: category1 */
:root{
  --brand-900:#0C3A5E;
  --brand-700:#125D92;
  --brand-600:#1573B4;
  --brand-500:#2E8FD0;
  --brand-100:#DCEDF9;
  --brand-50:#F1F8FD;
  --accent-500:#FF7A2B;
  --mint-500:#12B3A0;
  --ink-900:#0E1A24;
  --ink-600:#45596B;
  --ink-400:#7C8FA1;
  --line:#E4EDF5;
  --bg:#F6F9FC;
  --white:#FFFFFF;
  --r-card:15px;
  --r-lg:20px;
  --r-btn:10px;
  --sh-1:0 2px 8px rgba(14,58,94,.06);
  --sh-2:0 10px 26px rgba(14,58,94,.10);
  --sh-3:0 18px 44px rgba(14,58,94,.14);
  --ease:200ms ease;
  --header-h:70px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,Inter,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-700)}
h1,h2,h3,h4{color:var(--ink-900);margin:0;font-weight:700;line-height:1.35}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all var(--ease);line-height:1.2;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline{background:#fff;color:var(--brand-600);border-color:var(--brand-600)}
.btn-outline:hover{background:var(--brand-50);color:var(--brand-700);border-color:var(--brand-700)}
.btn-accent{background:var(--accent-500);color:#fff}
.btn-accent:hover{background:#e8691c;color:#fff;transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;background:#fff;
  border-bottom:1px solid var(--line);box-shadow:0 1px 6px rgba(14,58,94,.05);
  transition:box-shadow var(--ease);
}
.site-header.scrolled{box-shadow:var(--sh-2)}
.header-inner{display:flex;align-items:center;gap:26px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink-900);font-size:18px;font-weight:700;letter-spacing:.5px}
.brand:hover{color:var(--brand-700)}
.brand-mark{width:30px;height:30px;flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:26px;flex:1 1 auto}
.nav-links a{
  position:relative;color:var(--ink-600);font-size:15px;font-weight:500;
  padding:24px 2px;transition:color var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:16px;height:3px;border-radius:3px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-links a:hover{color:var(--brand-600)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand-600);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.search-box{
  display:flex;align-items:center;gap:8px;width:230px;height:44px;padding:0 16px;
  background:var(--brand-50);border:1px solid var(--line);border-radius:999px;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.search-box:focus-within{border-color:var(--brand-600);background:#fff;box-shadow:0 0 0 3px rgba(21,115,180,.14)}
.search-box svg{width:16px;height:16px;flex:0 0 auto;stroke:var(--ink-400)}
.search-box input{
  border:0;background:transparent;outline:0;width:100%;font-size:14px;color:var(--ink-900);
}
.search-box input::placeholder{color:var(--ink-400)}
.ghost-link{color:var(--ink-600);font-size:15px;padding:6px 4px}
.ghost-link:hover{color:var(--brand-600)}
.menu-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;padding:0;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:all var(--ease)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,26,36,.35);opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);z-index:1100;
}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;width:296px;max-width:86vw;height:100%;
  background:#fff;z-index:1101;transform:translateX(100%);transition:transform 240ms ease;
  display:flex;flex-direction:column;padding:22px 20px;box-shadow:var(--sh-3);
}
.drawer.open{transform:translateX(0)}
.drawer-head{font-size:17px;font-weight:700;color:var(--ink-900);padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:16px 0;flex:1 1 auto}
.drawer-nav a{padding:12px 10px;border-radius:10px;color:var(--ink-600);font-size:15px}
.drawer-nav a:hover{background:var(--brand-50);color:var(--brand-600)}
.drawer-nav a.active{background:var(--brand-50);color:var(--brand-600);font-weight:600}
.drawer-foot{display:flex;flex-direction:column;gap:10px;padding-top:16px;border-top:1px solid var(--line)}

/* ---------- 内页小 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--brand-50) 0%,#FFFFFF 78%);
  border-bottom:1px solid var(--line);
}
.page-hero .hero-media{
  position:absolute;top:0;right:0;width:52%;height:100%;pointer-events:none;
}
.page-hero .hero-media img{width:100%;height:100%;object-fit:cover;opacity:.3}
.page-hero .hero-media::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,#F1F8FD 0%,rgba(241,248,253,.55) 45%,rgba(241,248,253,.25) 100%);
}
.page-hero-inner{position:relative;z-index:1;padding:46px 0 52px;max-width:760px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-400);margin-bottom:16px}
.crumbs a{color:var(--ink-400)}
.crumbs a:hover{color:var(--brand-600)}
.crumbs .cur{color:var(--brand-600)}
.page-hero h1{font-size:42px;line-height:1.25;letter-spacing:-.4px;margin-bottom:16px}
.page-hero .hero-sub{font-size:17px;color:var(--ink-600);max-width:660px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:600;letter-spacing:.3px;
}
.pill.accent{background:#FFE9DB;color:#B44A0B}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:30px;margin-bottom:14px}
.section-head p{font-size:16.5px;color:var(--ink-600)}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.3px;color:var(--accent-500);
  margin-bottom:12px;
}

/* ---------- 目录 + 机制卡 ---------- */
.toc-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:44px;align-items:start}
.toc-card{
  position:sticky;top:96px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px 18px;
}
.toc-title{font-size:14px;font-weight:700;color:var(--ink-900);letter-spacing:.3px;padding:0 8px 12px;border-bottom:1px solid var(--line);margin-bottom:10px}
.toc-link{
  display:flex;align-items:baseline;gap:10px;padding:10px 8px;border-radius:10px;
  color:var(--ink-600);font-size:14.5px;transition:all var(--ease);
}
.toc-link span{color:var(--brand-600);font-weight:700;font-size:13px;font-variant-numeric:tabular-nums}
.toc-link:hover{background:var(--brand-50);color:var(--brand-700)}
.toc-link.active{background:var(--brand-50);color:var(--brand-700);font-weight:600}
.toc-link.active span{color:var(--accent-500)}
.toc-note{margin-top:14px;padding:14px 12px;background:var(--brand-50);border-radius:12px;font-size:13.5px;color:var(--ink-600);line-height:1.75}

.mech-col{display:flex;flex-direction:column;gap:24px}
.mech-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:28px;transition:transform var(--ease),box-shadow var(--ease);
  scroll-margin-top:96px;
}
.mech-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.mech-num{font-size:32px;font-weight:700;color:var(--accent-500);line-height:1;font-variant-numeric:tabular-nums;margin-bottom:12px}
.mech-card h3{font-size:21px;margin-bottom:12px}
.mech-card > p{font-size:16.5px;margin-bottom:18px}
.check-list{display:flex;flex-direction:column;gap:10px}
.check-list li{position:relative;padding-left:24px;font-size:15.5px;color:var(--ink-600)}
.check-list li::before{
  content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--brand-500);
}
.mech-figure{margin-top:22px;border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.mech-figure img{width:100%;height:260px;object-fit:cover}
.mech-figure figcaption{font-size:13px;color:var(--ink-400);text-align:center;padding:12px 10px;background:var(--brand-50)}

/* ---------- 阶段对照 ---------- */
.stage-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.stage-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;transition:transform var(--ease),box-shadow var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.stage-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.stage-card .tagline{font-size:13px;font-weight:700;color:var(--brand-600);letter-spacing:.3px}
.stage-card h3{font-size:19px}
.stage-card p{font-size:15.5px}
.stage-card .step-link{margin-top:auto;font-size:14.5px;font-weight:600}
.stage-card .step-link:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- 误区 ---------- */
.mis-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:center}
.mis-visual{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2)}
.mis-visual img{width:100%;height:340px;object-fit:cover}
.mis-list{display:flex;flex-direction:column;gap:16px;margin-top:24px}
.mis-item{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease);
}
.mis-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.mis-item .dot{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--brand-50);
  color:var(--brand-600);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
  margin-top:3px;
}
.mis-item h4{font-size:16.5px;margin-bottom:6px}
.mis-item p{font-size:15px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.acc-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);margin-bottom:14px;position:relative;overflow:hidden;
  transition:box-shadow var(--ease);
}
.acc-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand-600);
  transform:scaleY(0);transform-origin:top;transition:transform 240ms ease;
}
.acc-item.open{box-shadow:var(--sh-2)}
.acc-item.open::before{transform:scaleY(1)}
.acc-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:600;color:var(--ink-900);
}
.acc-q .plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--brand-50);
  color:var(--brand-600);font-size:18px;line-height:1;display:flex;align-items:center;justify-content:center;
  transition:transform 240ms ease,background var(--ease),color var(--ease);
}
.acc-item.open .plus{transform:rotate(45deg);background:var(--brand-600);color:#fff}
.acc-body{max-height:0;overflow:hidden;transition:max-height 280ms ease}
.acc-body p{padding:0 24px 22px;font-size:15.5px;color:var(--ink-600)}

/* ---------- CTA 横幅 ---------- */
.cta-banner{
  position:relative;overflow:hidden;background:var(--brand-50);
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:38px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-banner h2{font-size:26px;margin-bottom:10px}
.cta-banner p{font-size:16px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-banner::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:linear-gradient(90deg,var(--brand-600),var(--accent-500));
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-50);border-top:1px solid var(--line);padding:64px 0 26px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink-900);letter-spacing:.4px;margin-bottom:14px}
.footer-desc{font-size:14.5px;color:var(--ink-600);max-width:340px}
.site-footer h4{font-size:15px;margin-bottom:16px;color:var(--ink-900)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--ink-600);font-size:14.5px}
.footer-links a:hover{color:var(--brand-600)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-400);
}
.fb-links{display:flex;gap:18px}
.fb-links a{color:var(--ink-400);font-size:13px}
.fb-links a:hover{color:var(--brand-600)}

/* ---------- 响应式 ---------- */
@media (min-width:1400px){
  .section{padding:96px 0}
  .wrap{max-width:1240px}
}
@media (max-width:1199px){
  .toc-layout{grid-template-columns:210px minmax(0,1fr);gap:30px}
  .nav-links{gap:18px}
  .search-box{width:190px}
  .stage-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mis-layout{grid-template-columns:1fr;gap:32px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .search-box{display:none}
  .ghost-link{display:none}
  .menu-toggle{display:flex}
  .header-actions{gap:10px}
  .page-hero h1{font-size:32px}
  .page-hero-inner{padding:36px 0 42px}
  .page-hero .hero-media{width:100%;opacity:.5}
  .toc-layout{grid-template-columns:1fr;gap:28px}
  .toc-card{position:static}
  .toc-nav-scroll{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px}
  .toc-link{white-space:nowrap;background:var(--brand-50)}
  .toc-note{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:58px 0}
  .wrap{padding:0 16px}
  .page-hero h1{font-size:28px}
  .page-hero .hero-sub{font-size:15.5px}
  .section-head h2{font-size:23px}
  .mech-card{padding:20px}
  .mech-card h3{font-size:19px}
  .mech-num{font-size:27px}
  .stage-grid{grid-template-columns:1fr}
  .cta-banner{padding:26px 20px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr}
  .mis-visual img{height:230px}
}
@media (max-width:520px){
  .brand span{font-size:16.5px}
  .btn{padding:11px 18px;font-size:14.5px}
  .acc-q{padding:16px 18px;font-size:15.5px}
  .acc-body p{padding:0 18px 18px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .hero-tags{gap:8px}
}

/* roulang page: category2 */
:root{
    --brand-900:#0C3A5E;
    --brand-700:#125D92;
    --brand-600:#1573B4;
    --brand-500:#2E8FD0;
    --brand-100:#DCEDF9;
    --brand-50:#F1F8FD;
    --accent-500:#FF7A2B;
    --mint-500:#12B3A0;
    --ink-900:#0E1A24;
    --ink-600:#45596B;
    --ink-400:#7C8FA1;
    --line:#E4EDF5;
    --bg:#F6F9FC;
    --white:#FFFFFF;
    --shadow-1:0 2px 8px rgba(14,58,94,.06);
    --shadow-2:0 10px 26px rgba(14,58,94,.10);
    --shadow-3:0 18px 44px rgba(14,58,94,.14);
    --radius-card:15px;
    --radius-lg:20px;
    --radius-btn:10px;
    --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,Inter,sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:var(--font);
    font-size:17px;
    line-height:1.85;
    color:var(--ink-600);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:.2px;}
  h1{font-size:42px;line-height:1.25;}
  h2{font-size:30px;line-height:1.35;}
  h3{font-size:21px;line-height:1.5;font-weight:600;}
  p{margin:0;}
  a{color:var(--brand-600);text-decoration:none;transition:color .22s ease;}
  a:hover{color:var(--brand-700);}
  img{max-width:100%;display:block;}
  ul,ol{margin:0;padding:0;list-style:none;}
  button{font-family:inherit;}
  .tnum{font-variant-numeric:tabular-nums;}
  :focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px;}

  .wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
  .section{padding:88px 0;}
  .section--tight{padding:64px 0;}
  .section-head{max-width:760px;margin-bottom:40px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;letter-spacing:.3px;font-weight:600;
    color:var(--brand-700);background:var(--brand-100);
    border-radius:999px;padding:6px 14px;margin-bottom:16px;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);}
  .section-head p{margin-top:14px;font-size:16.5px;color:var(--ink-600);}
  .divider{height:1px;background:var(--line);border:0;margin:0;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 24px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;line-height:1.4;
    border:1px solid transparent;cursor:pointer;
    transition:transform .22s ease,background-color .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-1);}
  .btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600);}
  .btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);border-color:var(--brand-700);}
  .btn-accent{background:var(--accent-500);color:#fff;}
  .btn-accent:hover{background:#ee6914;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-text{background:transparent;color:var(--ink-600);padding:10px 12px;}
  .btn-text:hover{color:var(--brand-600);}
  .btn-sm{padding:10px 18px;font-size:14.5px;}
  .btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
  .btn svg{width:16px;height:16px;flex:none;}
  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600);
    position:relative;
  }
  .link-arrow::after{
    content:"";position:absolute;left:0;bottom:-3px;height:2px;width:100%;background:var(--brand-600);
    transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
  }
  .link-arrow:hover::after{transform:scaleX(1);}
  .link-arrow svg{width:14px;height:14px;}

  /* ============ 导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:200;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 1px 0 rgba(14,58,94,.03);
    transition:box-shadow .24s ease;
  }
  .site-header.is-scrolled{box-shadow:var(--shadow-2);}
  .header-inner{display:flex;align-items:center;gap:24px;height:70px;}
  .brand{display:flex;align-items:center;gap:10px;flex:none;}
  .brand-mark{width:30px;height:30px;flex:none;}
  .brand-name{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:.5px;}
  .nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;}
  .nav-links a{
    position:relative;display:block;padding:22px 14px;
    font-size:15.5px;font-weight:500;color:var(--ink-600);
  }
  .nav-links a::after{
    content:"";position:absolute;left:14px;right:14px;bottom:14px;height:3px;border-radius:3px;
    background:var(--brand-600);transform:scaleX(0);transition:transform .24s ease;
  }
  .nav-links a:hover{color:var(--brand-600);}
  .nav-links a:hover::after{transform:scaleX(.6);}
  .nav-links a.active{color:var(--brand-600);font-weight:600;}
  .nav-links a.active::after{transform:scaleX(1);}
  .nav-actions{display:flex;align-items:center;gap:10px;flex:none;}
  .search-box{
    display:flex;align-items:center;gap:8px;
    width:230px;height:42px;padding:0 16px;
    background:var(--brand-50);border:1px solid var(--line);border-radius:999px;
    transition:border-color .22s ease,box-shadow .22s ease,background-color .22s ease;
  }
  .search-box svg{width:16px;height:16px;color:var(--ink-400);flex:none;}
  .search-box input{
    border:0;background:transparent;outline:none;width:100%;
    font-size:14.5px;color:var(--ink-900);font-family:inherit;
  }
  .search-box input::placeholder{color:var(--ink-400);}
  .search-box:focus-within{background:#fff;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(21,115,180,.14);}
  .nav-burger{
    display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
    background:#fff;padding:0;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  }
  .nav-burger span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .24s ease,opacity .24s ease;}
  .nav-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-burger.is-open span:nth-child(2){opacity:0;}
  .nav-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  .nav-drawer{
    position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;z-index:320;
    background:#fff;border-left:1px solid var(--line);box-shadow:var(--shadow-3);
    transform:translateX(100%);transition:transform .28s ease;
    display:none;flex-direction:column;padding:22px;
  }
  .nav-drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
  .drawer-close{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;color:var(--ink-600);font-size:18px;line-height:1;}
  .drawer-links{display:flex;flex-direction:column;gap:2px;flex:1;}
  .drawer-links a{padding:13px 12px;border-radius:10px;color:var(--ink-600);font-size:16px;font-weight:500;}
  .drawer-links a:hover{background:var(--brand-50);color:var(--brand-600);}
  .drawer-links a.active{background:var(--brand-100);color:var(--brand-700);font-weight:600;}
  .drawer-foot{display:flex;flex-direction:column;gap:10px;padding-top:18px;border-top:1px solid var(--line);}
  .nav-overlay{
    position:fixed;inset:0;background:rgba(14,26,36,.35);z-index:300;opacity:0;pointer-events:none;transition:opacity .28s ease;
  }
  .nav-overlay.is-open{opacity:1;pointer-events:auto;}

  /* ============ 面包屑 ============ */
  .breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line);}
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:13.5px;color:var(--ink-400);padding:14px 0;margin:0;
  }
  .breadcrumb a{color:var(--ink-400);}
  .breadcrumb a:hover{color:var(--brand-600);}
  .breadcrumb .sep{color:var(--line);}
  .breadcrumb .current{color:var(--brand-600);font-weight:600;}

  /* ============ 分类 Hero ============ */
  .cat-hero{
    position:relative;overflow:hidden;
    background:linear-gradient(135deg,var(--brand-50) 0%,#fff 68%);
    border-bottom:1px solid var(--line);
  }
  .cat-hero-media{
    position:absolute;right:0;top:0;bottom:0;width:46%;
    background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    opacity:.18;
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 42%);
    mask-image:linear-gradient(90deg,transparent,#000 42%);
  }
  .cat-hero-inner{position:relative;z-index:2;padding:56px 0 60px;max-width:760px;}
  .cat-hero-inner h1{margin-bottom:16px;}
  .cat-hero-inner h1 em{font-style:normal;color:var(--brand-600);}
  .cat-hero-inner p{font-size:17px;color:var(--ink-600);max-width:660px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
  .hero-tags span{
    display:inline-flex;align-items:center;gap:8px;
    background:#fff;border:1px solid var(--line);border-radius:999px;
    padding:7px 14px;font-size:13.5px;color:var(--ink-600);box-shadow:var(--shadow-1);
  }
  .hero-tags span i{width:6px;height:6px;border-radius:50%;background:var(--mint-500);display:inline-block;}

  /* ============ 徽章 / 标签 ============ */
  .badge-soft{
    display:inline-flex;align-items:center;
    background:var(--brand-100);color:var(--brand-700);
    font-size:12.5px;font-weight:600;letter-spacing:.3px;
    border-radius:999px;padding:4px 12px;
  }
  .badge-accent{
    display:inline-flex;align-items:center;
    background:rgba(255,122,43,.12);color:#c9540f;
    font-size:12.5px;font-weight:600;letter-spacing:.3px;
    border-radius:999px;padding:4px 12px;
  }
  .chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;}
  .chip{
    font-size:13px;color:var(--brand-700);background:var(--brand-50);
    border:1px solid var(--line);border-radius:999px;padding:5px 13px;
  }

  /* ============ 准备卡片 ============ */
  .prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .prep-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:26px;box-shadow:var(--shadow-1);
    transition:transform .22s ease,box-shadow .22s ease;
  }
  .prep-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
  .prep-icon{
    width:44px;height:44px;border-radius:12px;background:var(--brand-50);
    display:flex;align-items:center;justify-content:center;margin-bottom:18px;
  }
  .prep-icon svg{width:22px;height:22px;color:var(--brand-600);}
  .prep-card h3{margin-bottom:10px;font-size:19px;}
  .prep-card p{font-size:15.5px;}

  /* ============ 时间线 ============ */
  .timeline-wrap{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .timeline{max-width:880px;}
  .step{position:relative;padding-left:72px;padding-bottom:26px;}
  .step:last-child{padding-bottom:0;}
  .step-num{
    position:absolute;left:0;top:16px;width:46px;height:46px;border-radius:50%;
    background:#fff;border:2px solid var(--brand-600);color:var(--brand-600);
    display:flex;align-items:center;justify-content:center;
    font-size:17px;font-weight:700;font-variant-numeric:tabular-nums;
    box-shadow:var(--shadow-1);
  }
  .step:not(:last-child)::after{
    content:"";position:absolute;left:22px;top:70px;bottom:6px;
    border-left:2px dashed var(--brand-100);
  }
  .step-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:24px 26px;box-shadow:var(--shadow-1);
    transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  }
  .step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#d5e6f4;}
  .step-card h3{margin-bottom:10px;}
  .step-card p{font-size:15.8px;}
  .step-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;}
  .tip{
    display:inline-flex;align-items:center;gap:6px;
    font-size:13px;color:var(--ink-600);background:var(--brand-50);
    border:1px solid var(--line);border-radius:999px;padding:5px 12px;
  }
  .tip.is-warn{background:rgba(255,122,43,.08);border-color:rgba(255,122,43,.28);color:#b74c0c;}
  .step-body-note{
    margin-top:16px;padding:14px 16px;border-radius:12px;
    background:var(--brand-50);border:1px solid var(--line);
    font-size:14.5px;color:var(--ink-600);
  }

  /* ============ 自查清单 ============ */
  .checklist-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:34px;box-shadow:var(--shadow-2);
  }
  .checklist-card h2{font-size:26px;margin-bottom:8px;}
  .checklist-card .lead{font-size:16px;margin-bottom:26px;}
  .check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 28px;}
  .check-item{display:flex;align-items:flex-start;gap:12px;font-size:15.8px;color:var(--ink-600);}
  .check-item svg{width:20px;height:20px;color:var(--mint-500);flex:none;margin-top:5px;}
  .checklist-foot{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
    margin-top:30px;padding-top:24px;border-top:1px solid var(--line);
  }
  .checklist-foot span{font-size:14.5px;color:var(--ink-400);}

  /* ============ 误区对照 ============ */
  .myth-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
  .myth-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:24px 26px;box-shadow:var(--shadow-1);
    transition:transform .22s ease,box-shadow .22s ease;
  }
  .myth-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
  .myth-card h3{font-size:18.5px;margin-bottom:14px;}
  .myth-line{display:flex;gap:10px;font-size:15px;align-items:flex-start;}
  .myth-line + .myth-line{margin-top:10px;padding-top:10px;border-top:1px dashed var(--line);}
  .myth-line b{flex:none;font-size:13px;font-weight:600;border-radius:6px;padding:2px 9px;line-height:1.7;}
  .myth-line.bad b{background:#F2F5F8;color:var(--ink-400);}
  .myth-line.good b{background:var(--brand-100);color:var(--brand-700);}

  /* ============ FAQ ============ */
  .faq-sec{background:var(--bg);}
  .faq-layout{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start;}
  .faq-side{position:sticky;top:100px;}
  .faq-side h2{font-size:24px;margin-bottom:14px;}
  .faq-side p{font-size:15.5px;color:var(--ink-600);}
  .faq-side .side-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
  .faq-side .side-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-600);}
  .faq-side .side-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500);margin-top:11px;flex:none;}

  .faq-acc .accordion-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-1);
    transition:box-shadow .22s ease,border-color .22s ease;
  }
  .faq-acc .accordion-item:hover{box-shadow:var(--shadow-2);}
  .faq-acc .accordion-header{margin:0;}
  .faq-acc .accordion-button{
    display:flex;align-items:center;gap:14px;width:100%;
    background:#fff;border:0;box-shadow:none;
    padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink-900);
    font-family:inherit;position:relative;
  }
  .faq-acc .accordion-button:not(.collapsed){color:var(--brand-700);background:#fff;}
  .faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand-600);outline-offset:-2px;}
  .faq-acc .accordion-button::before{
    content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
    background:var(--brand-600);transform:scaleY(0);transform-origin:center;transition:transform .24s ease;
  }
  .faq-acc .accordion-button:not(.collapsed)::before{transform:scaleY(1);}
  .faq-acc .accordion-button::after{
    content:"+";background-image:none !important;
    width:24px;height:24px;margin-left:auto;flex:none;
    display:flex;align-items:center;justify-content:center;
    font-size:20px;font-weight:500;color:var(--brand-600);line-height:1;
    transition:transform .24s ease;
  }
  .faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
  .faq-acc .accordion-body{padding:0 24px 22px 24px;font-size:15.8px;color:var(--ink-600);}

  /* ============ CTA ============ */
  .cta-banner{
    position:relative;background:var(--brand-50);border:1px solid var(--line);
    border-radius:var(--radius-lg);padding:40px 44px;overflow:hidden;
    box-shadow:var(--shadow-1);
  }
  .cta-banner::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
    background:linear-gradient(90deg,var(--brand-600),var(--accent-500));
  }
  .cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;position:relative;z-index:2;}
  .cta-inner h2{font-size:26px;margin-bottom:10px;}
  .cta-inner p{font-size:16px;max-width:620px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

  /* ============ 页脚 ============ */
  .site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
  .footer-brand span{font-size:17px;font-weight:700;color:var(--ink-900);letter-spacing:.4px;}
  .footer-brand .brand-mark{width:28px;height:28px;}
  .footer-desc{font-size:14.5px;color:var(--ink-400);max-width:340px;}
  .site-footer h4{font-size:15px;margin-bottom:18px;color:var(--ink-900);}
  .footer-links{display:flex;flex-direction:column;gap:11px;}
  .footer-links a{font-size:14.5px;color:var(--ink-600);}
  .footer-links a:hover{color:var(--brand-600);}
  .footer-bottom{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
    border-top:1px solid var(--line);padding:20px 0 26px;
    font-size:13px;color:var(--ink-400);
  }
  .fb-links{display:flex;gap:18px;}
  .fb-links a{color:var(--ink-400);font-size:13px;}
  .fb-links a:hover{color:var(--brand-600);}

  /* ============ 响应式 ============ */
  @media (min-width:1400px){
    .wrap{max-width:1240px;}
    .section{padding:96px 0;}
  }
  @media (max-width:1199.98px){
    .prep-grid{grid-template-columns:repeat(2,1fr);}
    .faq-layout{grid-template-columns:1fr;gap:32px;}
    .faq-side{position:static;}
    .nav-links a{padding:22px 10px;font-size:15px;}
    .search-box{width:190px;}
  }
  @media (max-width:991.98px){
    .nav-links,.nav-actions{display:none;}
    .nav-burger{display:flex;margin-left:auto;}
    .nav-drawer{display:flex;}
    .header-inner{height:66px;}
    h1{font-size:32px;}
    h2{font-size:24px;}
    .section{padding:64px 0;}
    .cat-hero-inner{padding:44px 0 46px;}
    .cat-hero-media{width:100%;opacity:.12;}
    .myth-grid{grid-template-columns:1fr;}
    .check-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:767.98px){
    body{font-size:16px;line-height:1.8;}
    h1{font-size:28px;}
    h2{font-size:22px;}
    h3{font-size:18.5px;}
    .wrap{padding:0 16px;}
    .section{padding:56px 0;}
    .prep-grid{grid-template-columns:1fr;gap:18px;}
    .prep-card{padding:20px;}
    .step{padding-left:0;padding-bottom:20px;}
    .step::after{display:none;}
    .step-num{position:static;margin-bottom:12px;}
    .step-card{padding:20px;}
    .checklist-card{padding:22px;}
    .cta-banner{padding:28px 22px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{flex:1 1 auto;justify-content:center;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .faq-acc .accordion-button{padding:16px 18px;font-size:16px;}
    .faq-acc .accordion-body{padding:0 18px 18px 18px;}
  }
  @media (max-width:520px){
    .cat-hero-inner{padding:36px 0 38px;}
    .hero-tags span{font-size:13px;padding:6px 12px;}
    .btn{padding:11px 18px;font-size:14.5px;width:100%;}
    .btn-sm{width:100%;}
    .step-num{width:40px;height:40px;font-size:15px;}
  }

/* roulang page: category3 */
:root{
  --brand-900:#0C3A5E;
  --brand-700:#125D92;
  --brand-600:#1573B4;
  --brand-500:#2E8FD0;
  --brand-100:#DCEDF9;
  --brand-50:#F1F8FD;
  --accent-500:#FF7A2B;
  --mint-500:#12B3A0;
  --ink-900:#0E1A24;
  --ink-600:#45596B;
  --ink-400:#7C8FA1;
  --line:#E4EDF5;
  --bg:#F6F9FC;
  --white:#FFFFFF;
  --radius-card:15px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(14,58,94,.06);
  --shadow-2:0 10px 26px rgba(14,58,94,.10);
  --shadow-3:0 18px 44px rgba(14,58,94,.14);
  --font: "PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,Inter,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink-900);margin:0;font-weight:700}
h1{font-size:44px;line-height:1.25}
h2{font-size:30px;line-height:1.35}
h3{font-size:21px;line-height:1.5;font-weight:600}
p{margin:0 0 16px}
a{color:var(--brand-600);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--brand-700)}
img{max-width:100%;display:block}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:box-shadow .24s ease;
}
.site-header.scrolled{box-shadow:var(--shadow-2)}
.nav-row{display:flex;align-items:center;gap:20px;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:.5px;color:var(--ink-900);text-decoration:none;flex:0 0 auto}
.brand:hover{color:var(--brand-700)}
.brand-mark{width:30px;height:30px;flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-links a{
  position:relative;padding:8px 12px;font-size:15px;color:var(--ink-600);
  text-decoration:none;border-radius:8px;white-space:nowrap;
  transition:color .2s ease,background-color .2s ease;
}
.nav-links a:hover{color:var(--brand-600);background:var(--brand-50)}
.nav-links a.active{color:var(--brand-600);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:3px;
  border-radius:3px;background:var(--brand-600);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-pill{
  display:flex;align-items:center;gap:8px;width:228px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-pill:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(21,115,180,.15)}
.search-pill svg{width:16px;height:16px;flex:0 0 auto;stroke:var(--ink-400)}
.search-pill input{border:0;outline:0;background:transparent;font-size:14px;width:100%;color:var(--ink-900)}
.search-pill input::placeholder{color:var(--ink-400)}
.login-link{font-size:15px;color:var(--ink-600);text-decoration:none;white-space:nowrap}
.login-link:hover{color:var(--brand-600)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:var(--radius-btn);border:1px solid var(--brand-600);
  background:var(--brand-600);color:#fff;font-size:15px;font-weight:600;
  text-decoration:none;cursor:pointer;
  transition:background-color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-main:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-main:active{transform:translateY(0)}
.btn-sm{padding:9px 18px;font-size:14.5px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:var(--radius-btn);border:1px solid var(--brand-600);
  background:#fff;color:var(--brand-600);font-size:15px;font-weight:600;
  text-decoration:none;cursor:pointer;transition:background-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:var(--radius-btn);border:1px solid var(--accent-500);
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:600;
  text-decoration:none;cursor:pointer;transition:filter .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-accent:hover{filter:brightness(.94);color:#fff;transform:translateY(-1px);box-shadow:0 10px 26px rgba(255,122,43,.28)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;
  color:var(--brand-600);position:relative;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;
  background:var(--brand-600);transition:width .22s ease;
}
.link-arrow:hover::after{width:100%}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s ease,background-color .2s ease;
}
.menu-toggle:hover{border-color:var(--brand-600);background:var(--brand-50)}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(14,26,36,.35);z-index:1040;opacity:0;transition:opacity .24s ease}
.drawer-mask.show{opacity:1}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:302px;max-width:86vw;background:#fff;z-index:1050;
  transform:translateX(100%);transition:transform .28s ease;display:flex;flex-direction:column;
  border-left:1px solid var(--line);box-shadow:var(--shadow-3);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--ink-600);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{border-color:var(--brand-600);color:var(--brand-600)}
.drawer-links{display:flex;flex-direction:column;padding:14px 10px;gap:2px;overflow-y:auto}
.drawer-links a{padding:13px 14px;border-radius:10px;color:var(--ink-600);font-size:15.5px}
.drawer-links a:hover{background:var(--brand-50);color:var(--brand-600)}
.drawer-links a.active{background:var(--brand-50);color:var(--brand-600);font-weight:600}
.drawer-foot{margin-top:auto;padding:18px 20px 26px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px}

/* ============ Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--brand-50) 0%,#fff 72%);
  border-bottom:1px solid var(--line);
}
.hero-cut{
  position:absolute;right:0;top:0;height:100%;width:48%;object-fit:cover;opacity:.26;
  -webkit-mask-image:linear-gradient(to right,transparent,#000 58%);
  mask-image:linear-gradient(to right,transparent,#000 58%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;padding:52px 24px 54px;max-width:1200px;margin:0 auto}
.cat-hero-text{max-width:660px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-400);margin-bottom:16px;flex-wrap:wrap}
.crumb a{color:var(--ink-400)}
.crumb a:hover{color:var(--brand-600)}
.crumb .sep{color:#C4D4E0}
.crumb .now{color:var(--brand-600);font-weight:600}
.cat-hero h1{font-size:40px;margin-bottom:14px;letter-spacing:.2px}
.cat-hero h1 em{font-style:normal;color:var(--brand-600)}
.cat-hero-lead{font-size:16.5px;color:var(--ink-600);max-width:580px;margin-bottom:20px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;background:var(--brand-100);color:var(--brand-700);
  font-size:12.5px;font-weight:600;letter-spacing:.3px;
}
.badge-accent{
  padding:6px 13px;border-radius:999px;background:rgba(255,122,43,.12);color:#C5571A;
  font-size:12.5px;font-weight:600;letter-spacing:.3px;
}
.badge-line{
  padding:6px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);
  color:var(--ink-600);font-size:12.5px;font-weight:600;letter-spacing:.3px;
}

/* ============ 概况条 ============ */
.snapshot{background:#fff;border-bottom:1px solid var(--line)}
.snapshot-row{display:flex;flex-wrap:wrap;gap:12px 38px;padding:18px 24px;max-width:1200px;margin:0 auto}
.snap-item{display:flex;align-items:center;gap:9px;font-size:14.5px;color:var(--ink-600)}
.snap-item .dot{width:7px;height:7px;border-radius:50%;background:var(--mint-500);flex:0 0 auto}
.snap-item b{color:var(--ink-900);font-size:17px;font-variant-numeric:tabular-nums}

/* ============ 板块基础 ============ */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{margin-bottom:36px;max-width:720px}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.3px;color:var(--accent-500);margin-bottom:10px;
}
.section-head h2{margin-bottom:12px}
.section-head p{font-size:16px;color:var(--ink-400);margin:0}

/* ============ 杂志式双栏 ============ */
.mag-layout{padding-top:76px}
.rail{position:sticky;top:96px}
.rail-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:24px;margin-bottom:20px;
}
.rail-card h3{font-size:18px;margin-bottom:6px}
.rail-card .rail-sub{font-size:13.5px;color:var(--ink-400);margin-bottom:16px}
.rail-list{list-style:none;padding:0;margin:0}
.rail-list li{
  position:relative;padding-left:22px;margin-bottom:14px;font-size:14.8px;line-height:1.7;color:var(--ink-600);
}
.rail-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--brand-100);border:2px solid var(--brand-500);
}
.rail-list li:last-child{margin-bottom:0}
.rail-divider{height:1px;background:var(--line);margin:18px 0}
.rail-meta{font-size:13.5px;color:var(--ink-400);font-variant-numeric:tabular-nums;display:flex;justify-content:space-between;gap:10px}
.rail-mini{
  display:flex;gap:12px;align-items:center;padding:10px;border-radius:12px;
  transition:background-color .22s ease;
}
.rail-mini:hover{background:var(--brand-50)}
.rail-mini img{width:64px;height:48px;object-fit:cover;border-radius:9px;flex:0 0 auto}
.rail-mini span{font-size:14px;color:var(--ink-900);line-height:1.55;font-weight:600}

.mag-post{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;margin-bottom:28px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.mag-post:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.mag-media{position:relative;overflow:hidden}
.mag-media img{width:100%;height:100%;object-fit:cover}
.mag-media .badge-soft{position:absolute;left:16px;top:16px;background:#fff;color:var(--brand-700)}
.mag-post--feature .mag-media img{height:290px}
.mag-post--split{display:grid;grid-template-columns:1.05fr 1fr;align-items:stretch}
.mag-post--split.rev{grid-template-columns:1fr 1.05fr}
.mag-post--split.rev .mag-media{order:2}
.mag-post--split .mag-media{min-height:250px}
.mag-post--split .mag-body{padding:28px 30px}
.mag-body{padding:28px 30px}
.mag-post--text{padding:30px;display:flex;gap:22px}
.mag-num{
  font-size:34px;font-weight:700;line-height:1;color:var(--accent-500);
  font-variant-numeric:tabular-nums;flex:0 0 auto;padding-top:2px;
}
.mag-post h2{font-size:24px;line-height:1.4;margin-bottom:12px}
.mag-post h2 a{color:var(--ink-900)}
.mag-post h2 a:hover{color:var(--brand-700)}
.mag-post p{font-size:15.8px;margin-bottom:16px}
.meta-row{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:var(--ink-400);margin-bottom:12px;font-variant-numeric:tabular-nums;
}
.meta-row .tag{color:var(--brand-700);font-weight:600}
.mag-quote{
  border-left:4px solid var(--brand-600);background:var(--brand-50);
  border-radius:12px;padding:16px 20px;font-size:15.5px;color:var(--ink-600);margin:0 0 16px;
}
.mag-points{list-style:none;padding:0;margin:0 0 16px}
.mag-points li{position:relative;padding-left:20px;margin-bottom:9px;font-size:15.4px}
.mag-points li::before{
  content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;background:var(--brand-600);
}

/* ============ 往期节点 ============ */
.archive-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.archive-item{
  display:flex;gap:18px;align-items:center;padding:18px 20px;background:#fff;
  border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-1);text-decoration:none;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.archive-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.arch-date{
  flex:0 0 76px;font-size:13.5px;font-weight:700;color:var(--brand-600);
  font-variant-numeric:tabular-nums;line-height:1.4;
}
.arch-date b{display:block;font-size:22px;color:var(--ink-900);line-height:1.1}
.arch-body strong{display:block;color:var(--ink-900);font-size:15.8px;font-weight:600;margin-bottom:4px;line-height:1.5}
.arch-body em{font-style:normal;color:var(--ink-400);font-size:13.5px;line-height:1.6;display:block}

/* ============ 横向轨道 ============ */
.track{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;
  scroll-snap-type:x mandatory;
}
.track::-webkit-scrollbar{height:6px}
.track::-webkit-scrollbar-thumb{background:#D6E3EE;border-radius:3px}
.track::-webkit-scrollbar-track{background:transparent}
.track-card{
  flex:0 0 268px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:14px;overflow:hidden;box-shadow:var(--shadow-1);text-decoration:none;
  transition:transform .22s ease,box-shadow .22s ease;
}
.track-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.track-card img{width:100%;height:150px;object-fit:cover}
.track-card .tc-body{padding:16px 18px 18px}
.track-card .tc-body strong{
  display:block;font-size:15.4px;color:var(--ink-900);font-weight:600;line-height:1.55;
  margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.track-card .tc-body span{font-size:13px;color:var(--ink-400);font-variant-numeric:tabular-nums}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.faq-aside h2{margin-bottom:14px}
.faq-aside p{font-size:16px;color:var(--ink-400)}
.faq-aside .aside-box{
  margin-top:22px;background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:20px 22px;box-shadow:var(--shadow-1);
}
.faq-aside .aside-box strong{display:block;color:var(--ink-900);font-size:15.5px;margin-bottom:6px}
.faq-aside .aside-box span{font-size:14px;color:var(--ink-400)}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;
  box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.faq-item.open{border-color:var(--brand-100)}
.faq-item.open .faq-q{color:var(--brand-700)}
.faq-item.open .faq-q::before{transform:scaleY(1)}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;cursor:pointer;
  padding:20px 56px 20px 24px;font-size:16.5px;font-weight:600;color:var(--ink-900);
  position:relative;line-height:1.6;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand-600);transform:scaleY(0);transform-origin:top;transition:transform .24s ease;
}
.faq-icon{
  position:absolute;right:22px;top:50%;width:16px;height:16px;margin-top:-8px;
  transition:transform .26s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-600);border-radius:2px;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;transition:opacity .26s ease}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 56px 22px 24px;margin:0;font-size:15.5px;color:var(--ink-600)}

/* ============ CTA 横幅 ============ */
.cta-band{
  background:var(--brand-50);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:38px 40px;position:relative;overflow:hidden;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;z-index:2}
.cta-inner h2{font-size:26px;margin-bottom:10px}
.cta-inner p{margin:0;font-size:15.8px;color:var(--ink-600);max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}
.cta-band::after{
  content:"";position:absolute;left:0;bottom:0;height:3px;width:180px;
  background:linear-gradient(90deg,var(--brand-600),var(--accent-500));
}

/* ============ 页脚 ============ */
.site-footer{background:#F1F6FA;border-top:1px solid var(--line);margin-top:96px;padding-top:60px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:42px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink-900);margin-bottom:14px;letter-spacing:.4px}
.footer-brand .brand-mark{width:28px;height:28px}
.footer-desc{font-size:14px;color:var(--ink-400);line-height:1.8;max-width:330px;margin:0}
.site-footer h4{font-size:15px;color:var(--ink-900);margin-bottom:16px;font-weight:700}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--ink-600)}
.footer-links a:hover{color:var(--brand-600)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;display:flex;align-items:center;
  justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom span{font-size:13px;color:var(--ink-400)}
.fb-links{display:flex;gap:20px}
.fb-links a{font-size:13px;color:var(--ink-400)}
.fb-links a:hover{color:var(--brand-600)}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  .section{padding:96px 0}
  .cat-hero-inner{padding:62px 24px 64px}
}
@media (max-width:1199.98px){
  .archive-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr;gap:32px}
}
@media (max-width:991.98px){
  .nav-links{display:none}
  .search-pill{display:none}
  .login-link{display:none}
  .menu-toggle{display:flex}
  .nav-row{height:64px}
  .rail{position:static;margin-top:8px}
  .mag-post--split,.mag-post--split.rev{grid-template-columns:1fr}
  .mag-post--split.rev .mag-media{order:0}
  .mag-post--split .mag-media{min-height:220px}
  .cat-hero-inner{padding:40px 24px 44px}
  .cat-hero-text{max-width:100%}
  .hero-cut{width:100%;opacity:.14}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
  .mag-layout{padding-top:48px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  h1,.cat-hero h1{font-size:29px}
  h2,.section-head h2,.cta-inner h2{font-size:23px}
  h3{font-size:19px}
  .wrap{padding:0 16px}
  .cat-hero-inner{padding:32px 16px 36px}
  .mag-post h2{font-size:20px}
  .mag-body{padding:20px}
  .mag-post--text{padding:20px;gap:16px}
  .mag-num{font-size:28px}
  .mag-post--feature .mag-media img{height:200px}
  .section{padding:56px 0}
  .cta-band{padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-accent{flex:1 1 auto;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .track-card{flex:0 0 232px}
  .faq-q{padding:18px 50px 18px 18px;font-size:15.6px}
  .faq-a p{padding:0 24px 20px 18px}
  .snapshot-row{padding:16px}
}
@media (max-width:520px){
  .hero-tags{gap:8px}
  .archive-item{flex-direction:column;align-items:flex-start;gap:10px}
  .arch-date{flex:none;display:flex;align-items:baseline;gap:6px}
  .arch-date b{font-size:18px}
}

/* roulang page: category4 */
:root{
  --brand-900:#0C3A5E;
  --brand-700:#125D92;
  --brand-600:#1573B4;
  --brand-500:#2E8FD0;
  --brand-100:#DCEDF9;
  --brand-50:#F1F8FD;
  --accent-500:#FF7A2B;
  --mint-500:#12B3A0;
  --ink-900:#0E1A24;
  --ink-600:#45596B;
  --ink-400:#7C8FA1;
  --line:#E4EDF5;
  --bg:#F6F9FC;
  --white:#FFFFFF;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --sh-1:0 2px 8px rgba(14,58,94,.06);
  --sh-2:0 10px 26px rgba(14,58,94,.10);
  --sh-3:0 18px 44px rgba(14,58,94,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,Inter,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink-900);margin:0;font-weight:700;line-height:1.35}
h1{font-size:clamp(28px,3.4vw,44px);line-height:1.25}
h2{font-size:clamp(22px,2.3vw,30px)}
h3{font-size:20px;font-weight:600;line-height:1.5}
p{margin:0 0 16px}
a{color:var(--brand-600);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--brand-700)}
img{max-width:100%;display:block}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-accent{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,background-color .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-main{background:var(--brand-600);color:#fff;box-shadow:0 2px 8px rgba(21,115,180,.22)}
.btn-main:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(21,115,180,.26)}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);transform:translateY(-1px)}
.btn-accent{background:var(--accent-500);color:#fff}
.btn-accent:hover{background:#f06a18;color:#fff;transform:translateY(-1px)}
.btn-text{background:none;border:none;padding:6px 2px;color:var(--brand-600);font-weight:600;font-size:15px;position:relative}
.btn-text::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--brand-600);transition:width .22s ease}
.btn-text:hover::after{width:100%}
.btn-main:disabled,.btn-ghost:disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- 徽章 / 标签 ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-100);color:var(--brand-700);
  border-radius:999px;padding:4px 12px;
  font-size:12.5px;font-weight:600;letter-spacing:.3px;
}
.badge-accent{background:#FFE7D8;color:#C2551A}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:var(--sh-2)}
.header-inner{display:flex;align-items:center;gap:20px;height:70px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:30px;height:30px;flex:0 0 auto}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.5px;color:var(--ink-900)}
.brand:hover .brand-text{color:var(--brand-700)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-links a{
  position:relative;padding:8px 12px;border-radius:8px;
  font-size:15px;color:var(--ink-600);font-weight:500;
}
.nav-links a:hover{color:var(--brand-600);background:var(--brand-50)}
.nav-links a.active{color:var(--brand-600);font-weight:700}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;
  border-radius:3px;background:var(--brand-600);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:220px;height:42px;padding:0 16px;
  background:var(--brand-50);border:1px solid var(--line);
  border-radius:999px;transition:border-color .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.search-box i{color:var(--ink-400);font-size:14px}
.search-box input{
  border:none;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--ink-900);
}
.search-box input::placeholder{color:var(--ink-400)}
.search-box:focus-within{border-color:var(--brand-600);background:#fff;box-shadow:0 0 0 3px rgba(21,115,180,.14)}
.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:#fff;border:1px solid var(--line);color:var(--brand-700);
  font-size:16px;cursor:pointer;transition:background-color .22s ease,border-color .22s ease;
}
.icon-btn:hover{background:var(--brand-50);border-color:var(--brand-100)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,26,36,.35);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:1040;
}
.drawer-mask.open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;
  background:#fff;z-index:1050;padding:22px 20px;
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:6px;box-shadow:var(--sh-3);
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.mobile-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.mobile-drawer a.drawer-link{
  padding:12px 12px;border-radius:10px;color:var(--ink-600);font-size:15.5px;font-weight:500;
}
.mobile-drawer a.drawer-link:hover{background:var(--brand-50);color:var(--brand-600)}
.mobile-drawer a.drawer-link.active{background:var(--brand-50);color:var(--brand-600);font-weight:700}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:18px;border-top:1px solid var(--line)}

/* ---------- 内页小 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--brand-50) 0%,#fff 78%);
  border-bottom:1px solid var(--line);
  padding:56px 0 48px;
}
.page-hero::after{
  content:"";position:absolute;right:-60px;top:-30px;width:560px;height:340px;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.26;border-radius:24px;pointer-events:none;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 55%);
  mask-image:linear-gradient(90deg,transparent,#000 55%);
}
.page-hero .wrap{position:relative;z-index:2;max-width:1200px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-400);margin-bottom:18px}
.crumbs a{color:var(--ink-400)}
.crumbs a:hover{color:var(--brand-600)}
.crumbs span.sep{color:#B9C7D4}
.crumbs .current{color:var(--brand-600);font-weight:600}
.page-hero h1{max-width:820px}
.page-hero .hero-sub{max-width:660px;margin:16px 0 0;font-size:16.5px;color:var(--ink-600)}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* ---------- 板块通用 ---------- */
.section{padding:80px 0}
.section.tight{padding:64px 0}
.section-head{margin-bottom:36px;max-width:760px}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.6px;
  color:var(--brand-600);margin-bottom:10px;
}
.section-head p{margin:12px 0 0;color:var(--ink-600)}

/* ---------- 排行 + 自助排查 ---------- */
.grid-2col{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:start}
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
}
.panel h3{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.panel h3::before{content:"";width:3px;height:20px;border-radius:3px;background:var(--brand-600)}
.rank-list{list-style:none;margin:0;padding:0}
.rank-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 0;border-bottom:1px dashed var(--line);
}
.rank-list li:last-child{border-bottom:none;padding-bottom:0}
.rank-no{
  font-size:20px;font-weight:700;color:var(--accent-500);
  line-height:1.3;min-width:26px;font-variant-numeric:tabular-nums;
}
.rank-list a{font-weight:600;color:var(--ink-900);font-size:15.5px}
.rank-list a:hover{color:var(--brand-600)}
.rank-list .rank-note{display:block;font-size:13px;color:var(--ink-400);margin-top:2px}
.step-cards{display:grid;gap:16px}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-card .step-top{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.step-card .step-idx{
  width:30px;height:30px;border-radius:999px;background:var(--brand-50);
  border:1px solid var(--brand-100);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.step-card h4{font-size:16.5px;font-weight:600;color:var(--ink-900)}
.step-card p{margin:0;font-size:14.8px;color:var(--ink-600)}
.step-card .tip{
  display:inline-flex;align-items:center;gap:6px;margin-top:10px;
  font-size:13px;color:var(--mint-500);font-weight:600;
}

/* ---------- FAQ 主体 ---------- */
.faq-layout{display:grid;grid-template-columns:250px 1fr;gap:34px;align-items:start}
.pill-nav{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:18px;box-shadow:var(--sh-1);
}
.pill-nav .pill-title{font-size:13px;font-weight:700;letter-spacing:.6px;color:var(--ink-400);margin-bottom:12px}
.pill-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.pill-nav a{
  display:flex;align-items:center;gap:10px;
  padding:11px 14px;border-radius:999px;background:var(--brand-50);
  color:var(--brand-700);font-size:14.5px;font-weight:600;
  border:1px solid transparent;transition:background-color .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.pill-nav a i{font-size:12px;color:var(--brand-500)}
.pill-nav a:hover{background:#fff;border-color:var(--brand-100);color:var(--brand-600)}
.pill-nav a.active{background:var(--brand-600);color:#fff}
.pill-nav a.active i{color:#fff}
.faq-groups{display:flex;flex-direction:column;gap:38px}
.faq-group .group-head{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.faq-group .group-head::before{content:"";width:3px;height:20px;border-radius:3px;background:var(--brand-600)}
.faq-group .group-head h2{font-size:22px}
.faq-group .group-desc{margin:0 0 16px;font-size:14.5px;color:var(--ink-400)}
.accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
  transition:box-shadow .22s ease,border-color .22s ease;
}
.accordion-item:hover{box-shadow:var(--sh-2)}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--ink-900);
  background:#fff;padding:18px 22px;box-shadow:none;border-radius:0;
  text-align:left;line-height:1.55;
}
.accordion-button:not(.collapsed){color:var(--brand-700);background:var(--brand-50);box-shadow:none}
.accordion-button::after{
  content:"＋";background-image:none;font-size:20px;line-height:1;
  width:auto;height:auto;color:var(--brand-600);
  transform:none;transition:transform .24s ease;margin-left:16px;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--brand-700)}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(21,115,180,.16);z-index:2}
.accordion-button:focus:not(:focus-visible){box-shadow:0 0 0 3px rgba(21,115,180,.16)}
.accordion-body{padding:6px 22px 22px;font-size:15.6px;color:var(--ink-600);border-left:3px solid transparent}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:var(--brand-100)}
.accordion-item:has(.accordion-button:not(.collapsed)) .accordion-body{
  border-left:3px solid var(--brand-600);background:#fff;
}
.accordion-body ul{margin:0 0 12px;padding-left:20px}
.accordion-body ul li{margin-bottom:6px}
.accordion-body ul li::marker{color:var(--brand-600)}
.accordion-body p:last-child{margin-bottom:0}
.faq-img{border:1px solid var(--line);border-radius:12px;margin:14px 0 6px;width:100%;height:auto}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  background:var(--brand-50);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:38px 34px;display:flex;align-items:center;justify-content:space-between;gap:26px;
  flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:linear-gradient(90deg,var(--brand-600),var(--accent-500));
}
.cta-band h3{font-size:23px;margin-bottom:8px}
.cta-band p{margin:0;max-width:620px;color:var(--ink-600)}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-50);border-top:1px solid var(--line);padding:60px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:28px;height:28px}
.footer-brand span{font-size:17px;font-weight:700;color:var(--ink-900);letter-spacing:.4px}
.footer-desc{font-size:14px;color:var(--ink-600);max-width:330px;line-height:1.8}
.site-footer h4{font-size:15px;color:var(--ink-900);margin-bottom:14px;font-weight:700}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--ink-600)}
.footer-links a:hover{color:var(--brand-600)}
.footer-bottom{
  border-top:1px solid var(--line);padding:18px 0 22px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-400);
}
.fb-links{display:flex;gap:18px;flex-wrap:wrap}
.fb-links a{color:var(--ink-400);font-size:13px}
.fb-links a:hover{color:var(--brand-600)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .grid-2col{grid-template-columns:1fr}
  .nav-links a{padding:8px 9px;font-size:14.5px}
  .search-box{width:180px}
}
@media (max-width:991px){
  .nav-links,.header-actions .search-box,.header-actions .btn-text,.header-actions .btn-main{display:none}
  .header-actions{gap:10px}
  .icon-btn{display:inline-flex}
  .faq-layout{grid-template-columns:1fr;gap:22px}
  .pill-nav{position:static;padding:14px}
  .pill-nav ul{flex-direction:row;overflow-x:auto;gap:10px;padding-bottom:4px}
  .pill-nav ul::-webkit-scrollbar{height:5px}
  .pill-nav ul::-webkit-scrollbar-thumb{background:var(--brand-100);border-radius:99px}
  .pill-nav .pill-title{margin-bottom:10px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .page-hero::after{opacity:.18;width:420px}
}
@media (max-width:767px){
  .wrap{padding:0 16px}
  .section{padding:56px 0}
  .section.tight{padding:44px 0}
  .page-hero{padding:40px 0 34px}
  .panel{padding:20px}
  .accordion-button{padding:15px 16px;font-size:15.2px}
  .accordion-body{padding:4px 16px 18px}
  .cta-band{padding:26px 20px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;justify-content:center}
}
@media (max-width:520px){
  .brand-text{font-size:16px}
  h1{font-size:28px}
  .rank-no{font-size:18px}
  .step-card{padding:18px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}