/* roulang page: index */
:root{
  --brand:#1857A6;
  --brand-dark:#12488C;
  --brand-light:#EAF2FC;
  --accent:#F2803C;
  --teal:#12A594;
  --bg:#F7FAFE;
  --card:#FFFFFF;
  --soft:#EFF5FC;
  --border:#E2EAF4;
  --line:#EDF2F8;
  --t1:#0E1B2B;
  --t2:#465C74;
  --t3:#7A8CA3;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --sh-sm:0 1px 2px rgba(16,42,77,.06);
  --sh-md:0 10px 28px -10px rgba(16,42,77,.18);
  --sh-lg:0 28px 56px -16px rgba(16,42,77,.24);
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg);
  word-break:break-word;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px}}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(150%) blur(2px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;align-items:center;gap:16px;
  min-height:72px;
  flex-wrap:wrap;
  padding-top:10px;padding-bottom:10px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-size:19px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-sm);
}
.brand-text{font-size:17px;font-weight:700;color:var(--t1);letter-spacing:-.01em;white-space:nowrap}
.brand:hover .brand-text{color:var(--brand)}
.nav-chips{
  display:none;align-items:center;gap:6px;
  background:var(--soft);
  border:1px solid var(--border);
  border-radius:999px;
  padding:5px;
}
.chip{
  display:inline-flex;align-items:center;
  padding:7px 15px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--t2);
  border:1px solid transparent;white-space:nowrap;
  transition:all .2s ease-out;
}
.chip:hover{color:var(--brand);border-color:rgba(24,87,166,.35);background:#fff}
.chip.is-active{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:var(--sh-sm)}
.chip.is-active:hover{background:var(--brand-dark);color:#fff}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.link-arrow{
  display:none;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.link-arrow:hover{gap:9px}
.menu-toggle{
  width:42px;height:42px;border-radius:var(--r-md);
  border:1px solid var(--border);background:#fff;color:var(--t1);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:all .2s ease-out;
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand)}
.drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:16px 20px 22px;
}
.drawer.is-open{display:block}
.drawer .chip{display:flex;width:100%;justify-content:flex-start;padding:12px 16px;border-radius:var(--r-md);border:1px solid var(--border);margin-bottom:8px;font-size:15px}
.drawer .chip.is-active{border-color:var(--brand)}
.drawer-cta{margin-top:12px;display:flex;flex-direction:column;gap:10px}
@media(min-width:768px){
  .nav-chips{display:flex;flex-basis:100%;order:3;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;justify-content:flex-start}
  .nav-chips::-webkit-scrollbar{display:none}
  .chip{scroll-snap-align:start}
  .drawer{display:none !important}
  .menu-toggle{display:none}
  .link-arrow{display:inline-flex}
}
@media(min-width:1024px){
  .header-inner{flex-wrap:nowrap;min-height:80px}
  .nav-chips{flex-basis:auto;order:0;margin:0 auto;overflow:visible}
  .drawer{display:none !important}
}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;
  transition:all .2s ease-out;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-sm)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-sm)}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-outline:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn-white{background:#fff;color:var(--brand);box-shadow:var(--sh-sm)}
.btn-white:hover{background:#fff;color:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn .arrow{transition:transform .2s ease-out}
.btn:hover .arrow{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;transform:none}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,#F5F9FE 0%,#E9F2FB 100%);
  border-bottom:1px solid var(--border);
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(24,87,166,.10),transparent 68%);
  pointer-events:none;
}
.hero-inner{
  display:grid;grid-template-columns:1fr;gap:36px;
  padding-top:48px;padding-bottom:52px;position:relative;z-index:1;
}
.hero-label{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--border);
  padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--brand);
  box-shadow:var(--sh-sm);margin-bottom:18px;
}
.hero-label .dot{width:7px;height:7px;border-radius:50%;background:var(--teal)}
.hero-title{
  font-size:clamp(30px,4vw,46px);
  line-height:1.25;font-weight:700;
  margin-bottom:16px;
}
.hero-title em{font-style:normal;color:var(--brand)}
.hero-sub{
  max-width:34rem;font-size:16px;line-height:1.85;color:var(--t2);
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-metrics{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;color:var(--t2);
}
.hero-metrics li{display:flex;align-items:center;gap:8px}
.hero-metrics li+li{padding-left:14px;border-left:1px solid #D8E4F2}
.hero-metrics strong{color:var(--t1);font-variant-numeric:tabular-nums;font-weight:700}
.hero-visual{position:relative;padding:12px 14px 18px 0}
.hero-frame-main{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--sh-lg);border:1px solid #fff;
  aspect-ratio:16/10;background:#DCE8F6;
  transform:translateY(0);transition:transform .3s ease-out;
}
.hero-frame-main img{width:100%;height:100%;object-fit:cover}
.hero-frame-main:hover{transform:translateY(-4px)}
.hero-frame-sub{
  position:absolute;right:-6px;bottom:-8px;width:44%;
  border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-md);border:2px solid #fff;opacity:.85;
  aspect-ratio:4/3;background:#DCE8F6;
}
.hero-frame-sub img{width:100%;height:100%;object-fit:cover}
@media(min-width:1024px){
  .hero-inner{grid-template-columns:1fr 1fr;gap:48px;padding-top:64px;padding-bottom:72px;align-items:center}
  .hero-visual{padding-right:24px}
}

/* ============ Section base ============ */
.section{padding-top:56px;padding-bottom:56px}
.section-soft{background:var(--soft);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.section-eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-light);border-radius:999px;padding:4px 12px;margin-bottom:10px;
}
.section-title{font-size:24px;line-height:1.35}
.section-desc{font-size:14px;color:var(--t2);margin-top:8px;max-width:44rem}
.section-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.section-more:hover{gap:10px}
@media(min-width:768px){.section{padding-top:72px;padding-bottom:72px}.section-title{font-size:28px}}
@media(min-width:1024px){.section{padding-top:88px;padding-bottom:88px}.section-title{font-size:30px}}

/* ============ Rail ============ */
.rail-wrap{position:relative}
.rail-track{
  display:flex;gap:18px;overflow-x:auto;padding-bottom:10px;
  scroll-snap-type:x mandatory;scrollbar-width:none;
}
.rail-track::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 200px;scroll-snap-align:start;
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:12px;box-shadow:var(--sh-sm);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.rail-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.rail-cover{
  position:relative;border-radius:var(--r-md);overflow:hidden;
  aspect-ratio:3/4;background:#DCE8F6;margin-bottom:12px;
}
.rail-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.rail-card:hover .rail-cover img{transform:scale(1.04)}
.rail-tag{
  position:absolute;left:8px;top:8px;
  background:rgba(255,255,255,.94);color:var(--brand);
  font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;
}
.rail-title{
  font-size:14px;font-weight:600;line-height:1.5;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  min-height:42px;
}
.rail-meta{font-size:12px;color:var(--t3);margin-top:8px;font-variant-numeric:tabular-nums}
.rail-nav{display:none;gap:8px}
.rail-nav button{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--border);
  background:#fff;color:var(--t2);cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:all .2s ease-out;
}
.rail-nav button:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light)}
@media(min-width:1024px){
  .rail-card{flex:0 0 224px}
  .rail-nav{display:flex}
}

/* ============ Feature grid ============ */
.feature-grid{display:grid;grid-template-columns:1fr;gap:20px}
.feature-big{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--border);border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--sh-sm);transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.feature-big:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.feature-big-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#DCE8F6}
.feature-big-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.feature-big:hover .feature-big-media img{transform:scale(1.04)}
.feature-big-body{padding:20px}
.feature-big-title{font-size:20px;font-weight:700;margin:10px 0 8px}
.feature-big-text{font-size:14px;color:var(--t2);line-height:1.8}
.feature-mini-grid{display:grid;grid-template-columns:1fr;gap:16px}
.feature-mini{
  display:flex;gap:14px;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:12px;box-shadow:var(--sh-sm);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.feature-mini:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.feature-mini-img{
  flex:0 0 96px;border-radius:var(--r-md);overflow:hidden;aspect-ratio:1/1;background:#DCE8F6;
}
.feature-mini-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.feature-mini:hover .feature-mini-img img{transform:scale(1.05)}
.feature-mini-body{display:flex;flex-direction:column;justify-content:center;min-width:0}
.feature-mini-title{font-size:15px;font-weight:600;line-height:1.5;margin-bottom:6px}
.feature-mini-meta{font-size:12px;color:var(--t3)}
@media(min-width:768px){
  .feature-grid{grid-template-columns:1fr 1fr}
  .feature-mini-grid{grid-template-columns:1fr 1fr}
}
@media(min-width:1024px){
  .feature-grid{grid-template-columns:7fr 5fr;gap:24px}
  .feature-big-media{aspect-ratio:16/10}
  .feature-big-body{padding:26px}
}

/* ============ Badge / tag ============ */
.tag{
  display:inline-flex;align-items:center;
  background:var(--brand-light);color:var(--brand);
  font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;
}
.tag-accent{background:rgba(242,128,60,.12);color:#C25C1D}
.tag-teal{background:rgba(18,165,148,.12);color:#0B7F73}

/* ============ CMS cards ============ */
.cms-grid{display:grid;grid-template-columns:1fr;gap:20px}
.cms-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-sm);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.cms-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.cms-media{aspect-ratio:16/9;overflow:hidden;background:#DCE8F6}
.cms-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.cms-card:hover .cms-media img{transform:scale(1.04)}
.cms-body{padding:18px;display:flex;flex-direction:column;flex:1}
.cms-title{
  font-size:16px;font-weight:700;line-height:1.55;margin:10px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-summary{
  font-size:14px;color:var(--t2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--t3);font-variant-numeric:tabular-nums;
}
.cms-foot .read{display:inline-flex;align-items:center;gap:5px;color:var(--brand);font-weight:600;font-size:13px}
.cms-card:hover .cms-foot .read{gap:9px}
.filter-chips{display:flex;flex-wrap:wrap;gap:8px}
.filter-chips .chip{background:#fff;border:1px solid var(--border);font-size:13px;padding:6px 14px}
.filter-chips .chip.is-active{background:var(--brand);color:#fff;border-color:var(--brand)}
.empty-state{
  grid-column:1/-1;
  border:1px dashed #C9D8EA;border-radius:var(--r-lg);
  background:#fff;padding:48px 24px;text-align:center;color:var(--t2);
}
.empty-state .icon{
  width:48px;height:48px;margin:0 auto 14px;border-radius:50%;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.empty-state p{font-size:14px;margin-bottom:16px}
@media(min-width:768px){.cms-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.cms-grid{grid-template-columns:repeat(3,1fr)}}

/* ============ Playlist ============ */
.playlist-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.playlist-tabs button{
  padding:8px 18px;border-radius:999px;border:1px solid var(--border);
  background:#fff;color:var(--t2);font-size:14px;font-weight:500;cursor:pointer;
  transition:all .2s ease-out;
}
.playlist-tabs button:hover{border-color:var(--brand);color:var(--brand)}
.playlist-tabs button.is-active{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:var(--sh-sm)}
.playlist-box{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-xl);
  padding:20px;box-shadow:var(--sh-sm);
  display:grid;grid-template-columns:1fr;gap:22px;
}
.playlist-list li+li{margin-top:6px}
.playlist-item{
  display:flex;align-items:flex-start;gap:14px;
  padding:12px 14px;border-radius:var(--r-md);border-left:3px solid transparent;
  transition:all .2s ease-out;cursor:pointer;
}
.playlist-item:hover{background:var(--soft)}
.playlist-item.is-active{background:var(--brand-light);border-left-color:var(--brand)}
.playlist-num{
  font-size:15px;font-weight:700;color:var(--t3);font-variant-numeric:tabular-nums;
  line-height:1.6;min-width:22px;
}
.playlist-item.is-active .playlist-num{color:var(--brand)}
.playlist-name{font-size:15px;font-weight:600;color:var(--t1);line-height:1.6}
.playlist-item.is-active .playlist-name{color:var(--brand)}
.playlist-desc{font-size:13px;color:var(--t3);line-height:1.7;margin-top:2px}
.playlist-preview{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/10;background:#DCE8F6;border:1px solid var(--border);
}
.playlist-preview img{width:100%;height:100%;object-fit:cover}
.playlist-preview-cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:40px 18px 16px;
  background:linear-gradient(to top,rgba(8,26,48,.86),rgba(8,26,48,0));
  color:#fff;
}
.playlist-preview-cap h4{font-size:16px;font-weight:700;margin-bottom:4px}
.playlist-preview-cap p{font-size:12px;opacity:.85}
@media(min-width:1024px){
  .playlist-box{grid-template-columns:300px 1fr;padding:24px;gap:26px}
}

/* ============ CTA banner ============ */
.cta-banner{
  background:linear-gradient(135deg,#EAF2FC 0%,#DDEAF9 100%);
  border:1px solid #CFDFF2;border-radius:var(--r-xl);
  padding:32px 24px;
  display:grid;grid-template-columns:1fr;gap:26px;
}
.cta-banner h2{font-size:23px;line-height:1.4;margin-bottom:10px}
.cta-banner p{font-size:14px;color:var(--t2);line-height:1.8;max-width:30rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.steps{display:grid;grid-template-columns:1fr;gap:14px}
.step{
  display:flex;align-items:flex-start;gap:12px;
  background:rgba(255,255,255,.78);border:1px solid #D5E3F3;
  border-radius:var(--r-md);padding:14px 16px;
}
.step-num{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  background:var(--brand);color:#fff;font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.step-title{font-size:14px;font-weight:600;color:var(--t1);line-height:1.6}
.step-text{font-size:12px;color:var(--t2);line-height:1.7;margin-top:2px}
@media(min-width:768px){
  .cta-banner{padding:40px}
  .steps{grid-template-columns:repeat(3,1fr)}
}
@media(min-width:1024px){
  .cta-banner{grid-template-columns:1fr 1.1fr;gap:40px;padding:48px;align-items:center}
  .cta-banner h2{font-size:27px}
}

/* ============ FAQ ============ */
.faq-list{display:grid;grid-template-columns:1fr;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);
  overflow:hidden;transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.faq-item.is-open{border-color:#C6D9EF;box-shadow:var(--sh-sm)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 18px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--t1);line-height:1.6;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:600;transition:transform .25s ease-out;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease-out;
}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a-inner{
  padding:0 18px 18px;font-size:14px;line-height:1.9;color:var(--t2);
  background:var(--brand-light);
}
.faq-a-inner p{padding-top:14px}
.faq-item.is-open .faq-a-inner{padding-top:0}

/* ============ Footer ============ */
.site-footer{
  background:var(--soft);border-top:1px solid var(--border);
  padding-top:48px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:36px}
.footer-brand .brand-text{font-size:16px}
.footer-desc{font-size:13px;color:var(--t2);line-height:1.8;margin-top:14px;max-width:22rem}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social span{
  width:36px;height:36px;border-radius:50%;background:#fff;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;color:var(--t2);font-size:13px;
  transition:all .2s ease-out;
}
.footer-social span:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.footer-col h3{
  font-size:13px;font-weight:700;color:var(--t1);letter-spacing:.02em;
  margin-bottom:14px;text-transform:none;
}
.footer-col li+li{margin-top:9px}
.footer-col a{font-size:14px;color:var(--t2)}
.footer-col a:hover{color:var(--brand)}
.footer-form{margin-top:14px}
.footer-form label{display:block;font-size:13px;color:var(--t2);margin-bottom:8px}
.footer-form .field{display:flex;gap:8px}
.footer-input{
  flex:1;height:44px;border:1px solid var(--border);border-radius:var(--r-md);
  background:#fff;padding:0 14px;font-size:14px;color:var(--t1);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
  min-width:0;
}
.footer-input::placeholder{color:var(--t3)}
.footer-input:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(24,87,166,.14);
}
.footer-input.is-error{border-color:#D9534F;box-shadow:0 0 0 3px rgba(217,83,79,.12)}
.footer-note{font-size:12px;color:var(--t3);margin-top:8px;line-height:1.7}
.footer-bottom{
  border-top:1px solid var(--border);
  padding-top:20px;padding-bottom:24px;
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--t3);
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom-links a{color:var(--t3)}
.footer-bottom-links a:hover{color:var(--brand)}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){
  .site-footer{padding-top:64px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px}
}

/* utility */
.visually-hidden{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
.fade-mask{position:relative}
@media(min-width:1024px){
  .fade-mask::after{
    content:"";position:absolute;right:0;top:0;bottom:0;width:48px;
    background:linear-gradient(to right,rgba(247,250,254,0),rgba(247,250,254,1));
    pointer-events:none;
  }
  .section-soft .fade-mask::after{background:linear-gradient(to right,rgba(239,245,252,0),rgba(239,245,252,1))}
}
@media(prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: article */
:root{
  --primary:#1857A6;
  --primary-dark:#12488C;
  --primary-light:#EAF2FC;
  --accent:#F2803C;
  --positive:#12A594;
  --bg:#F7FAFE;
  --card:#FFFFFF;
  --surface:#EFF5FC;
  --border:#E2EAF4;
  --divider:#EDF2F8;
  --ink:#0E1B2B;
  --ink-2:#465C74;
  --ink-3:#7A8CA3;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --radius-xl:20px;
  --shadow-sm:0 1px 2px rgba(16,42,77,.06);
  --shadow-md:0 10px 28px -10px rgba(16,42,77,.18);
  --shadow-lg:0 28px 56px -16px rgba(16,42,77,.24);
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
img{display:block;max-width:100%}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
.num{font-variant-numeric:tabular-nums}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:var(--shadow-sm);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;font-weight:700}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,#1C61B4,#12488C);
  color:#fff;display:grid;place-items:center;font-size:17px;font-weight:700;
  box-shadow:0 6px 14px -6px rgba(24,87,166,.7);
}
.brand-text{font-size:17px;color:var(--ink);white-space:nowrap}
.nav-chips{
  display:flex;align-items:center;gap:6px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:999px;
  padding:5px;
  overflow-x:auto;
  scrollbar-width:none;
  scroll-snap-type:x proximity;
  max-width:100%;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:999px;
  font-size:14px;line-height:1.2;color:var(--ink-2);
  border:1px solid transparent;white-space:nowrap;
  scroll-snap-align:start;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.chip:hover{color:var(--primary);background:#fff;border-color:#cfe0f5}
.chip.is-active{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:var(--shadow-sm)}
.chip.is-active:hover{background:var(--primary-dark);color:#fff}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;flex-shrink:0}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--ink-2);font-weight:500;
}
.link-arrow::after{content:"→";transition:transform .2s ease}
.link-arrow:hover{color:var(--primary)}
.link-arrow:hover::after{transform:translateX(3px)}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-md);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-outline{background:#fff;color:var(--primary);border-color:#bfd7f0}
.btn-outline:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary-dark);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}
.btn-sm{padding:8px 16px;font-size:14px;border-radius:10px}

/* ===== Breadcrumb & article head ===== */
.crumb-bar{background:#fff;border-bottom:1px solid var(--divider)}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--ink-3);
  padding:14px 0;
}
.crumb li{list-style:none;display:flex;align-items:center;gap:8px;min-width:0}
.crumb li+li::before{content:"/";color:#c3d3e4}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.crumb .current{color:var(--ink-3);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block}

.article-head{padding:34px 0 22px}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:5px 12px;border-radius:999px;
  background:var(--primary-light);color:var(--primary);
}
.tag-accent{background:#FFF1E7;color:#C25E1F}
.article-title{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.32;font-weight:700;
  color:var(--ink);
  margin:16px 0 0;
  max-width:860px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;
  margin-top:16px;font-size:13px;color:var(--ink-3);
}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:#c3d3e4;display:inline-block}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:6px}

/* ===== Layout ===== */
.article-shell{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:32px;
  padding:14px 0 8px;
}
@media (min-width:1024px){
  .article-shell{grid-template-columns:minmax(0,760px) 240px;gap:48px;justify-content:center}
}
.article-main{min-width:0}
.article-divider{height:1px;background:var(--divider);border:0;margin:0}

/* ===== Article body ===== */
.article-body{
  font-size:17px;line-height:1.9;color:var(--ink-2);
  padding:30px 0 34px;
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;
  font-size:24px;line-height:1.4;font-weight:700;color:var(--ink);
  margin:2em 0 .7em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;
  width:4px;height:1.05em;border-radius:2px;background:var(--primary);
}
.article-body h3{
  font-size:19px;font-weight:600;color:var(--ink);
  margin:1.6em 0 .55em;
}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:1.4em 0 .5em}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--primary-dark)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0}
.article-body ul{list-style:none}
.article-body ul > li{position:relative;padding-left:20px;margin-bottom:.5em}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.78em;
  width:6px;height:6px;border-radius:50%;background:var(--primary);
}
.article-body ol{list-style:none;counter-reset:artlist}
.article-body ol > li{position:relative;padding-left:30px;margin-bottom:.6em;counter-increment:artlist}
.article-body ol > li::before{
  content:counter(artlist);
  position:absolute;left:0;top:.18em;
  width:20px;height:20px;border-radius:6px;
  background:var(--primary-light);color:var(--primary);
  font-size:12px;font-weight:700;display:grid;place-items:center;
}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  background:var(--primary-light);
  border-left:3px solid var(--primary);
  border-radius:var(--radius-sm);
  color:var(--ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  border-radius:var(--radius-md);
  border:1px solid var(--border);
  margin:1.4em auto;
  height:auto;
}
.article-body figure{margin:1.5em 0}
.article-body figcaption{
  text-align:center;font-size:13px;color:var(--ink-3);margin-top:8px;
}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body table::-webkit-scrollbar{height:6px}
.article-body table::-webkit-scrollbar-thumb{background:#cfdded;border-radius:99px}
.article-body th{
  background:var(--surface);color:var(--ink);
  font-weight:600;text-align:left;
  padding:10px 14px;border:1px solid var(--border);
}
.article-body td{padding:10px 14px;border:1px solid var(--border)}
.article-body hr{border:0;height:1px;background:var(--divider);margin:2em 0}
.article-body code{
  background:var(--surface);border:1px solid var(--border);
  border-radius:6px;padding:1px 6px;font-size:14px;
}

/* ===== Empty state ===== */
.empty-state{
  border:1px dashed #c6d7ea;
  border-radius:var(--radius-lg);
  background:#fff;
  padding:48px 24px;
  text-align:center;
}
.empty-state .empty-icon{
  width:48px;height:48px;margin:0 auto 14px;
  border-radius:50%;background:var(--primary-light);
  display:grid;place-items:center;
  color:var(--primary);font-size:20px;
}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:18px}

/* ===== TOC ===== */
.toc{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:18px 16px 14px;
  box-shadow:var(--shadow-sm);
}
.toc h2{
  font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--ink-3);margin:0 0 10px;
}
.toc ul{list-style:none;display:grid;gap:2px}
.toc a{
  display:block;padding:7px 10px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--ink-2);line-height:1.5;
}
.toc a:hover{background:var(--surface);color:var(--primary)}
.toc a.is-current{background:var(--primary-light);color:var(--primary);font-weight:600}
.toc-note{
  margin-top:12px;padding-top:12px;border-top:1px solid var(--divider);
  font-size:12px;color:var(--ink-3);line-height:1.7;
}
.toc-mobile{
  border:1px solid var(--border);border-radius:var(--radius-md);
  background:#fff;margin-bottom:22px;box-shadow:var(--shadow-sm);
}
.toc-mobile summary{
  cursor:pointer;list-style:none;
  padding:13px 16px;font-size:14px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{
  content:"+";font-size:18px;color:var(--primary);line-height:1;
  transition:transform .2s ease;
}
.toc-mobile[open] summary::after{transform:rotate(45deg)}
.toc-mobile ul{list-style:none;padding:0 10px 12px;display:grid;gap:2px}
.toc-mobile a{display:block;padding:8px 8px;border-radius:var(--radius-sm);font-size:14px;color:var(--ink-2)}
.toc-mobile a:hover{background:var(--surface);color:var(--primary)}
@media (min-width:1024px){.toc-mobile{display:none}}
.toc-aside{display:none}
@media (min-width:1024px){.toc-aside{display:block}}

/* ===== Related ===== */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:22px;
}
.section-head h2{font-size:22px;font-weight:700;color:var(--ink)}
.section-head p{font-size:14px;color:var(--ink-3);margin-top:6px}
.related{padding:8px 0 40px}
.related-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#cfe0f5}
.card-cover{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--surface)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-cover img{transform:scale(1.04)}
.card-cover .tag{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:var(--primary)}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.card-title{font-size:16px;font-weight:600;color:var(--ink);line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;color:var(--ink-3);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);padding-top:8px}
.card-foot .arrow{color:var(--primary);font-weight:600}

/* ===== Back CTA ===== */
.back-cta{
  background:var(--primary-light);
  border:1px solid #d8e7f8;
  border-radius:var(--radius-xl);
  padding:26px 24px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-bottom:44px;
}
.back-cta h2{font-size:19px;font-weight:700;color:var(--ink)}
.back-cta p{font-size:14px;color:var(--ink-2);margin-top:6px}
.back-cta .actions{display:flex;flex-wrap:wrap;gap:10px}

/* ===== Footer ===== */
.site-footer{
  background:var(--surface);
  border-top:1px solid var(--border);
  padding:56px 0 26px;
  margin-top:24px;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:40px}}
.footer-brand .brand{margin-bottom:12px}
.footer-desc{font-size:14px;color:var(--ink-2);line-height:1.8;max-width:34ch}
.footer-social{display:flex;gap:10px;margin-top:16px}
.footer-social span{
  width:32px;height:32px;border-radius:50%;
  background:#fff;border:1px solid var(--border);
  display:grid;place-items:center;font-size:13px;color:var(--ink-3);
}
.footer-col h3{
  font-size:13px;font-weight:700;color:var(--ink);
  letter-spacing:.04em;margin:0 0 14px;
}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--ink-2)}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.footer-form label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:7px}
.field{display:flex;gap:8px}
.footer-input{
  flex:1;min-width:0;height:44px;
  border:1px solid var(--border);border-radius:var(--radius-md);
  background:#fff;padding:0 14px;font-size:14px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-input::placeholder{color:#a6b6c8}
.footer-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(24,87,166,.15)}
.footer-note{font-size:13px;color:var(--ink-3);line-height:1.75;margin-top:8px}
.footer-bottom{
  margin-top:36px;padding-top:20px;
  border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom-links a{color:var(--ink-3)}
.footer-bottom-links a:hover{color:var(--primary)}

@media (max-width:1023px){
  .header-actions .link-arrow{display:none}
  .nav-chips{margin-left:0}
}
@media (max-width:767px){
  .header-inner{min-height:64px;gap:12px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
  .brand-text{font-size:15px}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:15px}
  .header-actions{margin-left:auto}
  .header-actions .btn{padding:8px 14px;font-size:13px;border-radius:10px}
  .nav-chips{order:3;width:100%;margin:0;border-radius:12px}
  .article-body{font-size:16px;line-height:1.85;padding:24px 0 28px}
  .article-title{font-size:24px}
  .back-cta{padding:20px}
}
@media (max-width:519px){
  .footer-grid{gap:26px}
  .crumb .current{max-width:170px}
  .field{flex-wrap:wrap}
  .footer-input{width:100%;flex:1 1 100%}
  .field .btn{width:100%}
}

/* roulang page: category1 */
:root {
      --primary: #1857A6;
      --primary-dark: #12488C;
      --primary-light: #EAF2FC;
      --accent: #F2803C;
      --success: #12A594;
      --bg: #F7FAFE;
      --card: #FFFFFF;
      --section: #EFF5FC;
      --border: #E2EAF4;
      --line: #EDF2F8;
      --text: #0E1B2B;
      --muted: #465C74;
      --weak: #7A8CA3;
      --white: #FFFFFF;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-xl: 20px;
      --shadow-sm: 0 1px 2px rgba(16, 42, 77, .06);
      --shadow-md: 0 10px 28px -10px rgba(16, 42, 77, .18);
      --shadow-lg: 0 28px 56px -16px rgba(16, 42, 77, .24);
      --font-sans: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      --font-number: ui-sans-serif, "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      margin: 0;
      color: var(--text);
      background: var(--bg);
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    img {
      display: block;
      max-width: 100%;
      height: auto;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, border-color .2s ease, background-color .2s ease, box-shadow .2s ease, transform .2s ease;
    }

    button,
    input {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    [hidden] {
      display: none !important;
    }

    :focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }

    @media (min-width: 768px) {
      .container {
        padding: 0 32px;
      }
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 255, 255, .96);
      border-bottom: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

    .header-inner {
      display: flex;
      align-items: center;
      gap: 18px;
      min-height: 76px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      color: var(--white);
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      box-shadow: var(--shadow-sm);
      font-size: 18px;
      font-weight: 700;
      line-height: 1;
    }

    .brand-text {
      font-size: 17px;
      font-weight: 700;
      letter-spacing: -.01em;
      white-space: nowrap;
    }

    .nav-chips {
      display: flex;
      align-items: center;
      gap: 6px;
      margin: 0 auto;
      padding: 6px;
      background: var(--section);
      border: 1px solid var(--border);
      border-radius: 999px;
      overflow-x: auto;
      scrollbar-width: none;
      scroll-snap-type: x mandatory;
    }

    .nav-chips::-webkit-scrollbar {
      display: none;
    }

    .chip {
      flex-shrink: 0;
      scroll-snap-align: start;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 36px;
      padding: 0 16px;
      border-radius: 999px;
      border: 1px solid transparent;
      color: var(--muted);
      font-size: 14px;
      font-weight: 500;
      line-height: 1;
      white-space: nowrap;
    }

    .chip:hover {
      color: var(--primary);
      background: var(--white);
      border-color: var(--border);
    }

    .chip.is-active {
      color: var(--white);
      background: var(--primary);
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-left: auto;
      flex-shrink: 0;
    }

    .header-cta {
      height: 42px;
      padding: 0 16px;
      font-size: 14px;
      white-space: nowrap;
    }

    .header-link {
      font-size: 14px;
      white-space: nowrap;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      height: 48px;
      padding: 0 22px;
      border-radius: var(--radius-md);
      border: 1px solid transparent;
      font-size: 15px;
      font-weight: 600;
      line-height: 1;
      cursor: pointer;
      transition: background-color .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease, transform .2s ease;
    }

    .btn-primary {
      color: var(--white);
      background: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      box-shadow: var(--shadow-md);
      transform: translateY(-1px);
    }

    .btn-primary:active {
      box-shadow: var(--shadow-sm);
      transform: translateY(0);
    }

    .btn-ghost {
      color: var(--primary);
      background: var(--white);
      border-color: var(--primary);
    }

    .btn-ghost:hover {
      background: var(--primary-light);
      box-shadow: var(--shadow-sm);
      transform: translateY(-1px);
    }

    .btn-ghost:active {
      transform: translateY(0);
    }

    .btn-text {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--primary);
      font-size: 14px;
      font-weight: 600;
    }

    .btn-text:hover {
      gap: 8px;
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .mobile-toggle {
      display: none;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 4px;
      width: 42px;
      height: 42px;
      border: 1px solid var(--border);
      border-radius: 12px;
      background: var(--white);
      color: var(--text);
    }

    .mobile-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      border-radius: 999px;
      background: currentColor;
      transition: transform .2s ease, opacity .2s ease;
    }

    .mobile-toggle[aria-expanded="true"] span:nth-child(1) {
      transform: translateY(6px) rotate(45deg);
    }

    .mobile-toggle[aria-expanded="true"] span:nth-child(2) {
      opacity: 0;
    }

    .mobile-toggle[aria-expanded="true"] span:nth-child(3) {
      transform: translateY(-6px) rotate(-45deg);
    }

    .mobile-drawer {
      position: fixed;
      inset: 0;
      z-index: 100;
      display: flex;
      justify-content: flex-end;
      background: rgba(14, 27, 43, .48);
    }

    .drawer-panel {
      width: min(88vw, 360px);
      height: 100%;
      padding: 20px;
      background: var(--white);
      box-shadow: var(--shadow-lg);
      display: flex;
      flex-direction: column;
      overflow-y: auto;
    }

    .drawer-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 20px;
    }

    .drawer-close {
      width: 40px;
      height: 40px;
      border: 1px solid var(--border);
      border-radius: 50%;
      background: var(--white);
      color: var(--muted);
      font-size: 20px;
      line-height: 1;
    }

    .drawer-close:hover {
      color: var(--primary);
      border-color: var(--primary);
    }

    .drawer-nav {
      display: grid;
      gap: 8px;
      margin: 0 0 auto;
    }

    .drawer-nav a {
      padding: 12px 14px;
      border: 1px solid var(--border);
      border-radius: 12px;
      color: var(--muted);
      background: var(--white);
      font-size: 15px;
    }

    .drawer-nav a:hover {
      color: var(--primary);
      border-color: var(--primary);
      background: var(--primary-light);
    }

    .drawer-nav a.is-active {
      color: var(--white);
      background: var(--primary);
      border-color: var(--primary);
    }

    .drawer-nav a.is-active:hover {
      color: var(--white);
      background: var(--primary-dark);
    }

    .drawer-cta {
      margin-top: 20px;
    }

    .hero {
      padding: 56px 0 46px;
      background: linear-gradient(180deg, #F5F9FE 0%, #E9F2FB 70%, var(--bg) 100%);
      border-bottom: 1px solid var(--border);
      overflow: hidden;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 36px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 12px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: var(--white);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      line-height: 1.2;
    }

    .eyebrow::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--success);
    }

    .hero-title {
      margin: 18px 0 14px;
      font-size: clamp(30px, 4vw, 46px);
      line-height: 1.25;
      font-weight: 700;
      letter-spacing: -.01em;
    }

    .hero-sub {
      margin: 0 0 12px;
      max-width: 36em;
      color: var(--text);
      font-size: 17px;
      font-weight: 500;
    }

    .hero-desc {
      margin: 0 0 26px;
      max-width: 40em;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.85;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 22px;
      margin-top: 28px;
      padding-top: 20px;
      border-top: 1px solid var(--border);
      color: var(--weak);
      font-size: 13px;
    }

    .hero-meta span {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .hero-meta span::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--success);
    }

    .hero-meta span:nth-child(2)::before {
      background: var(--accent);
    }

    .hero-meta span:nth-child(3)::before {
      background: var(--primary);
    }

    .hero-visual {
      position: relative;
      padding: 8px 0 30px;
    }

    .hero-frame {
      position: relative;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      border: 6px solid var(--white);
      border-radius: var(--radius-xl);
      background: var(--white);
      box-shadow: var(--shadow-lg);
    }

    .hero-frame img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .hero-badge {
      position: absolute;
      top: 18px;
      left: 18px;
      z-index: 2;
      padding: 7px 12px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: rgba(255, 255, 255, .94);
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      font-size: 13px;
      font-weight: 600;
    }

    .hero-subcard {
      position: absolute;
      right: -4px;
      bottom: -8px;
      width: 44%;
      overflow: hidden;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: var(--white);
      box-shadow: var(--shadow-md);
      transform: translateY(4px);
      opacity: .96;
    }

    .hero-subcard img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
    }

    .section {
      padding: 64px 0;
    }

    .section-muted {
      background: var(--section);
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 28px;
    }

    .section-kicker {
      margin: 0 0 8px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .08em;
    }

    .section-head h2 {
      margin: 0;
      font-size: clamp(24px, 3vw, 30px);
      line-height: 1.35;
      font-weight: 700;
      letter-spacing: -.01em;
    }

    .section-lead {
      max-width: 44em;
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .timeline {
      position: relative;
      display: grid;
      grid-template-columns: 1fr;
      gap: 0;
    }

    .timeline-item {
      position: relative;
      display: grid;
      grid-template-columns: 48px 1fr;
      gap: 16px;
      padding-bottom: 28px;
    }

    .timeline-item:last-child {
      padding-bottom: 0;
    }

    .step-num {
      position: relative;
      z-index: 1;
      display: grid;
      place-items: center;
      width: 48px;
      height: 48px;
      border: 2px solid var(--primary);
      border-radius: 50%;
      background: var(--white);
      color: var(--primary);
      font-family: var(--font-number);
      font-size: 15px;
      font-weight: 700;
      font-variant-numeric: tabular-nums;
    }

    .timeline-item:not(:last-child)::after {
      content: "";
      position: absolute;
      top: 48px;
      bottom: 0;
      left: 24px;
      width: 2px;
      background: var(--border);
      transform: translateX(-50%);
    }

    .step-body {
      padding: 20px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: var(--white);
      box-shadow: var(--shadow-sm);
    }

    .step-body h3 {
      margin: 0 0 8px;
      font-size: 18px;
      line-height: 1.5;
      font-weight: 600;
    }

    .step-body p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
    }

    .card-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 20px;
    }

    .info-card {
      display: flex;
      flex-direction: column;
      overflow: hidden;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: var(--white);
      box-shadow: var(--shadow-sm);
      transition: transform .2s ease, box-shadow .2s ease;
    }

    .info-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }

    .card-cover {
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: var(--section);
    }

    .card-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .4s ease;
    }

    .info-card:hover .card-cover img {
      transform: scale(1.04);
    }

    .card-body {
      display: flex;
      flex: 1;
      flex-direction: column;
      gap: 10px;
      padding: 20px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      width: fit-content;
      padding: 4px 10px;
      border-radius: 999px;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 12px;
      font-weight: 600;
      line-height: 1.5;
    }

    .card-title {
      margin: 0;
      font-size: 18px;
      line-height: 1.5;
      font-weight: 600;
    }

    .card-desc {
      display: -webkit-box;
      margin: 0;
      overflow: hidden;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-top: auto;
      padding-top: 8px;
      color: var(--primary);
      font-size: 14px;
      font-weight: 600;
    }

    .text-link:hover {
      gap: 8px;
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .check-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 20px;
    }

    .check-panel {
      padding: 24px;
      border: 1px solid var(--border);
      border-radius: var(--radius-xl);
      background: var(--white);
      box-shadow: var(--shadow-sm);
    }

    .check-panel h3 {
      margin: 0 0 18px;
      font-size: 20px;
      line-height: 1.5;
      font-weight: 600;
    }

    .check-list {
      display: grid;
      gap: 14px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .check-list li {
      display: flex;
      gap: 12px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.7;
    }

    .check-list li::before {
      content: "✓";
      display: grid;
      place-items: center;
      flex: 0 0 20px;
      width: 20px;
      height: 20px;
      margin-top: 2px;
      border: 1px solid #CFE0F4;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 12px;
      font-weight: 700;
    }

    .note-card {
      display: flex;
      flex-direction: column;
      gap: 14px;
      padding: 24px;
      border: 1px solid var(--border);
      border-radius: var(--radius-xl);
      background: linear-gradient(180deg, var(--white), #F8FBFF);
      box-shadow: var(--shadow-sm);
    }

    .note-card h3 {
      margin: 0;
      font-size: 20px;
      line-height: 1.5;
      font-weight: 600;
    }

    .note-list {
      display: grid;
      gap: 0;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .note-list li {
      display: flex;
      gap: 10px;
      padding: 12px 0;
      border-bottom: 1px dashed var(--line);
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
    }

    .note-list li:last-child {
      border-bottom: 0;
    }

    .note-list li::before {
      content: "—";
      color: var(--accent);
      font-weight: 700;
    }

    .note-tip {
      margin: 0;
      padding: 14px 16px;
      border-left: 3px solid var(--primary);
      border-radius: var(--radius-sm);
      background: var(--primary-light);
      color: var(--primary-dark);
      font-size: 14px;
      line-height: 1.8;
    }

    .faq-list {
      display: grid;
      gap: 12px;
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      overflow: hidden;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: var(--white);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      width: 100%;
      padding: 18px 20px;
      border: 0;
      background: transparent;
      color: var(--text);
      text-align: left;
      font-size: 16px;
      font-weight: 600;
      line-height: 1.6;
    }

    .faq-question:hover {
      color: var(--primary);
    }

    .faq-icon {
      display: grid;
      place-items: center;
      flex: 0 0 28px;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 18px;
      line-height: 1;
      transition: transform .2s ease;
    }

    .faq-item.is-open .faq-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      display: none;
      padding: 0 20px 20px;
      background: linear-gradient(180deg, transparent, #F8FBFF);
      color: var(--muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .faq-answer p {
      margin: 0;
    }

    .faq-item.is-open .faq-answer {
      display: block;
    }

    .cta-band {
      position: relative;
      display: grid;
      gap: 24px;
      overflow: hidden;
      padding: 32px;
      border-radius: var(--radius-xl);
      background: var(--primary);
      color: var(--white);
      box-shadow: var(--shadow-lg);
    }

    .cta-band::after {
      content: "";
      position: absolute;
      right: -80px;
      bottom: -120px;
      width: 320px;
      height: 320px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .08);
      pointer-events: none;
    }

    .cta-band h2 {
      margin: 0 0 10px;
      font-size: clamp(24px, 3vw, 30px);
      line-height: 1.35;
      font-weight: 700;
      letter-spacing: -.01em;
    }

    .cta-band p {
      max-width: 46em;
      margin: 0;
      color: rgba(255, 255, 255, .84);
      font-size: 15px;
      line-height: 1.8;
    }

    .cta-actions {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .btn-white {
      color: var(--primary);
      background: var(--white);
      border-color: var(--white);
    }

    .btn-white:hover {
      background: #F3F8FF;
      box-shadow: var(--shadow-md);
      transform: translateY(-1px);
    }

    .btn-outline-white {
      color: var(--white);
      background: transparent;
      border-color: rgba(255, 255, 255, .55);
    }

    .btn-outline-white:hover {
      background: rgba(255, 255, 255, .10);
      border-color: var(--white);
      transform: translateY(-1px);
    }

    .site-footer {
      padding: 56px 0 28px;
      border-top: 1px solid var(--border);
      background: var(--section);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 32px;
    }

    .footer-brand .brand {
      margin-bottom: 14px;
    }

    .footer-desc {
      max-width: 28em;
      margin: 0 0 18px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-social {
      display: flex;
      gap: 8px;
    }

    .footer-social span {
      display: grid;
      place-items: center;
      width: 34px;
      height: 34px;
      border: 1px solid var(--border);
      border-radius: 50%;
      background: var(--white);
      color: var(--muted);
      font-size: 13px;
      font-weight: 600;
    }

    .footer-col h3 {
      margin: 0 0 14px;
      color: var(--text);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .02em;
    }

    .footer-col ul {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .footer-col a {
      color: var(--muted);
      font-size: 14px;
    }

    .footer-col a:hover {
      color: var(--primary);
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .footer-note {
      margin: 8px 0 0;
      color: var(--weak);
      font-size: 13px;
      line-height: 1.7;
    }

    .footer-form label {
      display: block;
      margin-bottom: 6px;
      color: var(--muted);
      font-size: 13px;
    }

    .field {
      display: flex;
      gap: 8px;
    }

    .footer-input {
      flex: 1;
      min-width: 0;
      height: 44px;
      padding: 0 12px;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      background: var(--white);
      color: var(--text);
      font-size: 14px;
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    .footer-input:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(24, 87, 166, .12);
    }

    .footer-input::placeholder {
      color: var(--weak);
    }

    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px 24px;
      margin-top: 36px;
      padding-top: 20px;
      border-top: 1px solid var(--border);
      color: var(--weak);
      font-size: 13px;
    }

    .footer-bottom p {
      margin: 0;
    }

    .footer-bottom-links {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .footer-bottom-links a:hover {
      color: var(--primary);
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    @media (min-width: 520px) and (max-width: 767px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (min-width: 768px) {
      .footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
        gap: 28px;
      }

      .card-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
      }

      .section {
        padding: 80px 0;
      }

      .check-panel,
      .note-card {
        padding: 32px;
      }
    }

    @media (min-width: 768px) and (max-width: 1023px) {
      .header-inner {
        flex-wrap: wrap;
        padding-top: 10px;
        padding-bottom: 10px;
      }

      .nav-chips {
        order: 3;
        flex-basis: 100%;
        margin: 0;
        border-radius: 14px;
      }

      .header-actions {
        margin-left: auto;
      }

      .header-link {
        display: none;
      }
    }

    @media (min-width: 1024px) {
      .hero {
        padding: 72px 0 60px;
      }

      .hero-grid {
        grid-template-columns: 1.05fr .95fr;
        gap: 56px;
      }

      .section {
        padding: 96px 0;
      }

      .timeline {
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
      }

      .timeline-item {
        grid-template-columns: 1fr;
        gap: 0;
        padding-bottom: 0;
      }

      .step-num {
        margin-bottom: 20px;
      }

      .timeline-item:not(:last-child)::after {
        top: 24px;
        right: -28px;
        bottom: auto;
        left: 24px;
        width: auto;
        height: 2px;
        background: linear-gradient(90deg, var(--border), transparent);
        transform: none;
      }

      .step-body {
        min-height: 170px;
        padding: 24px;
      }

      .check-grid {
        grid-template-columns: 1.1fr .9fr;
        gap: 28px;
      }

      .cta-band {
        grid-template-columns: 1fr auto;
        align-items: center;
        padding: 40px 44px;
      }
    }

    @media (max-width: 767px) {
      .nav-chips {
        display: none;
      }

      .header-cta,
      .header-link {
        display: none;
      }

      .mobile-toggle {
        display: inline-flex;
      }

      .hero-actions .btn {
        flex: 1 1 100%;
      }

      .section-head {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
      }

      .cta-actions .btn {
        flex: 1 1 100%;
      }
    }

/* roulang page: category2 */
:root{
    --primary:#1857A6;
    --primary-dark:#12488C;
    --primary-light:#EAF2FC;
    --accent:#F2803C;
    --teal:#12A594;
    --bg:#F7FAFE;
    --card:#FFFFFF;
    --soft:#EFF5FC;
    --border:#E2EAF4;
    --line:#EDF2F8;
    --ink:#0E1B2B;
    --ink-2:#465C74;
    --ink-3:#7A8CA3;
    --radius-sm:8px;
    --radius:12px;
    --radius-card:16px;
    --radius-lg:20px;
    --shadow-sm:0 1px 2px rgba(16,42,77,.06);
    --shadow-md:0 10px 28px -10px rgba(16,42,77,.18);
    --shadow-lg:0 28px 56px -16px rgba(16,42,77,.24);
    --font-head:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    --font-num:ui-sans-serif,system-ui,"HarmonyOS Sans SC","PingFang SC",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:var(--font-head);
    font-size:16px;
    line-height:1.85;
    color:var(--ink);
    background:var(--bg);
  }
  a{color:inherit;text-decoration:none;transition:color .18s ease-out}
  a:hover{color:var(--primary)}
  img{display:block;max-width:100%}
  button{font:inherit;color:inherit}
  ul,ol{list-style:none}
  h1,h2,h3,h4,p{margin:0}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container{padding:0 32px}}

  /* ============ Header ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:#FFFFFF;
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-sm);
  }
  .header-inner{
    display:flex;align-items:center;gap:16px;
    min-height:72px;padding:10px 0;
  }
  .brand{
    display:inline-flex;align-items:center;gap:10px;
    font-weight:700;font-size:17px;color:var(--ink);letter-spacing:-.01em;
    flex-shrink:0;
  }
  .brand:hover{color:var(--primary)}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;
    background:linear-gradient(135deg,var(--primary),var(--primary-dark));
    color:#fff;display:grid;place-items:center;
    font-size:16px;font-weight:700;line-height:1;
    box-shadow:var(--shadow-sm);
  }
  .brand-text{white-space:nowrap}

  .nav-chips{display:none}

  .header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
  .link-arrow{
    display:none;align-items:center;gap:6px;
    font-size:14px;color:var(--ink-2);white-space:nowrap;
  }
  .link-arrow:hover{color:var(--primary)}
  .link-arrow::after{content:"→";transition:transform .18s ease-out}
  .link-arrow:hover::after{transform:translateX(2px)}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--radius);
    font-size:15px;font-weight:600;line-height:1;
    border:1px solid transparent;cursor:pointer;
    transition:background .2s ease-out,color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
  }
  .btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm)}
  .btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
  .btn-primary:active{transform:none;box-shadow:var(--shadow-sm)}
  .btn-ghost{background:#fff;color:var(--primary);border-color:rgba(24,87,166,.42)}
  .btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
  .btn-ghost:active{transform:none;box-shadow:none}
  .btn-white{background:#fff;color:var(--primary);box-shadow:var(--shadow-sm)}
  .btn-white:hover{color:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}
  .btn:disabled,.btn.is-disabled{opacity:.5;transform:none;box-shadow:none;pointer-events:none}
  .btn-sm{height:38px;padding:0 16px;font-size:14px}

  .menu-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:42px;height:42px;border-radius:12px;
    background:#fff;border:1px solid var(--border);
    color:var(--ink-2);cursor:pointer;margin-left:auto;
    transition:background .2s,border-color .2s,color .2s;
  }
  .menu-toggle:hover{background:var(--soft);border-color:rgba(24,87,166,.35);color:var(--primary)}
  .menu-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
  .menu-toggle span::before,.menu-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
  }
  .menu-toggle span::before{top:-6px}
  .menu-toggle span::after{top:6px}

  @media (min-width:768px){
    .nav-chips{
      display:flex;align-items:center;gap:8px;
      overflow-x:auto;scroll-snap-type:x proximity;
      -ms-overflow-style:none;scrollbar-width:none;
      padding:4px 2px;
      -webkit-mask-image:linear-gradient(to right,#000 88%,transparent 100%);
      mask-image:linear-gradient(to right,#000 88%,transparent 100%);
    }
    .nav-chips::-webkit-scrollbar{display:none}
    .chip{
      display:inline-flex;align-items:center;justify-content:center;
      font-size:14px;line-height:1;padding:9px 15px;border-radius:999px;
      border:1px solid var(--border);background:#fff;color:var(--ink-2);
      white-space:nowrap;scroll-snap-align:start;
      transition:background .2s,color .2s,border-color .2s,box-shadow .2s;
    }
    .chip:hover{color:var(--primary);border-color:rgba(24,87,166,.4);background:var(--primary-light)}
    .chip.is-active{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:var(--shadow-sm)}
    .chip.is-active:hover{background:var(--primary-dark);color:#fff}
    .menu-toggle{display:none}
    .header-actions{margin-left:0}
  }
  @media (min-width:1024px){
    .nav-chips{
      background:var(--soft);border-radius:999px;padding:5px;gap:4px;
      overflow:visible;-webkit-mask-image:none;mask-image:none;
    }
    .chip{border-color:transparent;background:transparent}
    .chip:hover{background:#fff}
    .link-arrow{display:inline-flex}
  }
  @media (max-width:1023px){
    .header-actions .btn{padding:0 16px;font-size:14px}
  }

  /* 抽屉 */
  .drawer-mask{
    position:fixed;inset:0;background:rgba(14,27,43,.42);z-index:70;
    opacity:0;pointer-events:none;transition:opacity .2s ease-out;
  }
  .drawer-mask.is-open{opacity:1;pointer-events:auto}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:min(330px,86vw);
    background:#fff;z-index:80;padding:20px;
    display:flex;flex-direction:column;
    transform:translateX(100%);transition:transform .26s ease-out;
    box-shadow:var(--shadow-lg);overflow-y:auto;
  }
  .drawer.is-open{transform:none}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line)}
  .drawer-close{
    width:36px;height:36px;border-radius:10px;border:1px solid var(--border);
    background:#fff;color:var(--ink-2);cursor:pointer;display:grid;place-items:center;font-size:16px;
  }
  .drawer-close:hover{background:var(--soft);color:var(--primary)}
  .drawer-nav{display:grid;gap:8px;margin:16px 0}
  .drawer-nav .chip{
    display:flex;justify-content:flex-start;width:100%;
    padding:12px 14px;border-radius:12px;border:1px solid var(--border);
    background:#fff;color:var(--ink-2);font-size:15px;
  }
  .drawer-nav .chip.is-active{background:var(--primary);color:#fff;border-color:var(--primary)}
  .drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:grid;gap:10px}

  /* ============ Hero ============ */
  .page-hero{
    position:relative;
    background:linear-gradient(180deg,#F5F9FE 0%,#E9F2FB 100%);
    border-bottom:1px solid var(--border);
    padding:34px 0 44px;
  }
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);flex-wrap:wrap}
  .breadcrumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
  .breadcrumb .sep{color:#B9C7D8}
  .page-hero h1{
    font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:700;letter-spacing:-.01em;
    margin:16px 0 12px;color:var(--ink);
  }
  .hero-lead{font-size:16px;line-height:1.9;color:var(--ink-2);max-width:34em}
  .hero-stats{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:13px;color:var(--ink-3)}
  .hero-stats span{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
  .hero-stats .dot{width:4px;height:4px;border-radius:50%;background:#C3D2E3}
  .hero-stats b{color:var(--ink);font-weight:700;font-size:14px}
  .hero-media{
    border-radius:var(--radius-lg);overflow:hidden;border:4px solid #fff;
    box-shadow:var(--shadow-lg);background:#fff;
  }
  .hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}

  /* ============ Sections ============ */
  .section{padding:56px 0}
  @media (min-width:768px){.section{padding:72px 0}}
  @media (min-width:1024px){.section{padding:84px 0}}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
  .section-head h2{font-size:clamp(22px,2.6vw,28px);line-height:1.35;font-weight:700;letter-spacing:-.01em}
  .section-head p{font-size:14px;color:var(--ink-3);margin-top:6px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12.5px;font-weight:600;letter-spacing:.06em;
    color:var(--primary);background:var(--primary-light);
    padding:5px 12px;border-radius:999px;margin-bottom:12px;
  }

  /* ============ 侧栏 + 列表 ============ */
  .news-layout{display:grid;gap:24px;grid-template-columns:1fr}
  @media (min-width:1024px){
    .news-layout{grid-template-columns:212px minmax(0,1fr);gap:32px;align-items:start}
  }

  .filter-panel{
    background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
    box-shadow:var(--shadow-sm);padding:18px;
  }
  @media (min-width:1024px){
    .filter-panel{position:sticky;top:96px}
  }
  .filter-group + .filter-group{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
  .filter-group h3{
    font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--ink-3);
    text-transform:none;margin-bottom:12px;
  }
  .filter-list{display:flex;gap:8px;flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;-ms-overflow-style:none;scrollbar-width:none}
  .filter-list::-webkit-scrollbar{display:none}
  @media (min-width:1024px){
    .filter-list{flex-direction:column;flex-wrap:wrap;overflow:visible;padding-bottom:0;gap:6px}
  }
  .filter-chip{
    display:inline-flex;align-items:center;justify-content:space-between;gap:8px;
    font-size:14px;color:var(--ink-2);
    padding:8px 14px;border-radius:999px;
    border:1px solid var(--border);background:#fff;white-space:nowrap;
    transition:background .2s,color .2s,border-color .2s;
  }
  @media (min-width:1024px){
    .filter-chip{border-radius:10px;border-color:transparent;background:transparent;padding:9px 12px;width:100%}
  }
  .filter-chip:hover{color:var(--primary);border-color:rgba(24,87,166,.35);background:var(--primary-light)}
  .filter-chip.is-active{
    background:var(--primary-light);color:var(--primary-dark);
    border-color:rgba(24,87,166,.35);font-weight:600;
  }
  .filter-chip .count{
    font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;
  }
  .filter-chip.is-active .count{color:var(--primary)}

  .filter-note{
    margin-top:22px;padding:14px;border-radius:var(--radius);
    background:var(--soft);border:1px solid var(--border);
    font-size:13px;line-height:1.8;color:var(--ink-2);
  }
  .filter-note strong{color:var(--ink);font-weight:600;display:block;margin-bottom:4px;font-size:13.5px}

  .news-grid{display:grid;gap:20px;grid-template-columns:1fr}
  @media (min-width:768px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}

  .news-card{
    display:flex;gap:14px;
    background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
    padding:14px;box-shadow:var(--shadow-sm);
    transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
  }
  .news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#D5E3F3}
  .news-thumb{
    width:42%;flex:0 0 42%;aspect-ratio:16/9;
    border-radius:var(--radius);overflow:hidden;background:var(--soft);
  }
  .news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
  .news-card:hover .news-thumb img{transform:scale(1.04)}
  .news-body{display:flex;flex-direction:column;min-width:0;flex:1}
  .tag{
    display:inline-flex;align-items:center;
    font-size:12px;line-height:1;font-weight:600;
    color:var(--primary);background:var(--primary-light);
    padding:5px 10px;border-radius:999px;white-space:nowrap;
  }
  .tag-teal{color:#0C7F73;background:#E4F6F4}
  .tag-accent{color:#B75A1C;background:#FDF0E6}
  .news-title{
    font-size:16px;line-height:1.55;font-weight:600;color:var(--ink);
    margin:9px 0 6px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .news-card:hover .news-title{color:var(--primary)}
  .news-excerpt{
    font-size:13.5px;line-height:1.75;color:var(--ink-2);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .news-meta{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    margin-top:auto;padding-top:10px;
    font-size:12.5px;color:var(--ink-3);font-variant-numeric:tabular-nums;
  }
  .news-meta .dot{width:3px;height:3px;border-radius:50%;background:#C3D2E3}

  /* 分页 */
  .pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:32px;flex-wrap:wrap}
  .pager a,.pager span{
    min-width:40px;height:40px;padding:0 12px;border-radius:10px;
    display:inline-flex;align-items:center;justify-content:center;
    font-size:14px;color:var(--ink-2);background:#fff;
    border:1px solid var(--border);font-variant-numeric:tabular-nums;
    transition:background .2s,color .2s,border-color .2s,box-shadow .2s;
  }
  .pager a:hover{color:var(--primary);border-color:rgba(24,87,166,.4);background:var(--primary-light)}
  .pager .is-current{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:var(--shadow-sm);font-weight:600}
  .pager .is-disabled{opacity:.5;pointer-events:none}
  .pager .gap{border-color:transparent;background:transparent;min-width:20px;padding:0}

  /* ============ 速览 ============ */
  .soft-block{background:var(--soft);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
  .stat-grid{display:grid;gap:20px;grid-template-columns:1fr}
  @media (min-width:640px){.stat-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
  .stat-card{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    padding:22px;box-shadow:var(--shadow-sm);
    transition:box-shadow .2s,transform .2s;
  }
  .stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
  .stat-card .num{
    font-family:var(--font-num);font-variant-numeric:tabular-nums;
    font-size:34px;line-height:1.1;font-weight:700;color:var(--primary);letter-spacing:-.02em;
  }
  .stat-card .label{font-size:14px;font-weight:600;color:var(--ink);margin-top:8px}
  .stat-card .desc{font-size:13.5px;color:var(--ink-2);line-height:1.75;margin-top:6px}

  .rhythm-list{display:grid;gap:14px;margin-top:26px}
  @media (min-width:768px){.rhythm-list{grid-template-columns:repeat(3,minmax(0,1fr))}}
  .rhythm-item{
    display:flex;gap:12px;background:#fff;border:1px solid var(--border);
    border-radius:var(--radius-card);padding:18px;box-shadow:var(--shadow-sm);
  }
  .rhythm-item .idx{
    flex:0 0 auto;width:30px;height:30px;border-radius:9px;
    display:grid;place-items:center;font-size:13px;font-weight:700;
    color:var(--primary);background:var(--primary-light);font-variant-numeric:tabular-nums;
  }
  .rhythm-item h3{font-size:15px;font-weight:600;margin-bottom:4px}
  .rhythm-item p{font-size:13.5px;color:var(--ink-2);line-height:1.75}

  /* ============ FAQ ============ */
  .faq-wrap{display:grid;gap:14px;max-width:900px}
  .faq-item{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    box-shadow:var(--shadow-sm);overflow:hidden;
    transition:box-shadow .2s,border-color .2s;
  }
  .faq-item.is-open{border-color:#CFE0F2;box-shadow:var(--shadow-md)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
    font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
  }
  .faq-q:hover{color:var(--primary)}
  .faq-icon{
    flex:0 0 auto;width:24px;height:24px;border-radius:50%;
    background:var(--soft);color:var(--primary);
    display:grid;place-items:center;font-size:15px;line-height:1;
    transition:transform .22s ease-out,background .22s;
  }
  .faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
  .faq-a{display:none;padding:0 20px 18px;background:var(--primary-light)}
  .faq-a p{font-size:14.5px;line-height:1.85;color:var(--ink-2);padding-top:14px;border-top:1px solid #D8E6F5}
  .faq-item.is-open .faq-a{display:block}

  /* ============ CTA ============ */
  .cta-band{
    background:linear-gradient(135deg,#EAF2FC 0%,#F3F8FE 100%);
    border:1px solid #D8E6F5;border-radius:var(--radius-lg);
    padding:32px 24px;
    display:grid;gap:24px;
  }
  @media (min-width:900px){
    .cta-band{grid-template-columns:1.05fr .95fr;align-items:center;padding:44px 40px;gap:36px}
  }
  .cta-band h2{font-size:clamp(22px,2.6vw,28px);line-height:1.35;font-weight:700;letter-spacing:-.01em}
  .cta-band p{font-size:14.5px;color:var(--ink-2);margin-top:10px;max-width:36em;line-height:1.85}
  .cta-actions{display:grid;gap:12px;margin-top:22px}
  @media (min-width:520px){.cta-actions{grid-auto-flow:column;justify-content:start}}
  .steps{display:grid;gap:12px}
  @media (min-width:640px){.steps{grid-template-columns:repeat(3,minmax(0,1fr))}}
  .step{
    background:#fff;border:1px solid #DCE9F7;border-radius:var(--radius);
    padding:16px;box-shadow:var(--shadow-sm);
  }
  .step .n{
    width:26px;height:26px;border-radius:50%;background:var(--accent);color:#fff;
    display:grid;place-items:center;font-size:13px;font-weight:700;margin-bottom:10px;
    font-variant-numeric:tabular-nums;
  }
  .step h3{font-size:14.5px;font-weight:600;margin-bottom:4px}
  .step p{font-size:13px;color:var(--ink-2);line-height:1.7;margin:0}

  /* ============ Footer ============ */
  .site-footer{
    background:var(--soft);border-top:1px solid var(--border);
    padding:56px 0 0;margin-top:0;
  }
  .footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px}}
  .footer-brand .brand{font-size:17px}
  .footer-desc{font-size:14px;line-height:1.8;color:var(--ink-2);margin:14px 0 16px;max-width:34ch}
  .footer-social{display:flex;gap:10px}
  .footer-social span{
    width:34px;height:34px;border-radius:50%;background:#fff;border:1px solid var(--border);
    display:grid;place-items:center;font-size:13px;color:var(--ink-3);
    transition:background .2s,color .2s,border-color .2s;
  }
  .footer-social span:hover{background:#fff;color:var(--primary);border-color:rgba(24,87,166,.35)}
  .footer-col h3{
    font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--ink);
    margin:0 0 14px;
  }
  .footer-col ul{display:grid;gap:10px;margin:0;padding:0}
  .footer-col li a{font-size:14px;color:var(--ink-2)}
  .footer-col li a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
  .footer-note{font-size:12.5px;color:var(--ink-3);line-height:1.75;margin-top:10px}
  .footer-form label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px}
  .field{display:flex;gap:8px}
  .footer-input{
    flex:1;min-width:0;height:44px;border:1px solid var(--border);border-radius:var(--radius);
    background:#fff;color:var(--ink);font-size:14px;padding:0 12px;font-family:inherit;
    transition:border-color .2s,box-shadow .2s;
  }
  .footer-input::placeholder{color:#9AABC0}
  .footer-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(24,87,166,.15)}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
    margin-top:40px;padding:20px 0 28px;border-top:1px solid var(--border);
    font-size:13px;color:var(--ink-3);
  }
  .footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px}
  .footer-bottom-links a{color:var(--ink-3)}
  .footer-bottom-links a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}

  @media (prefers-reduced-motion:reduce){
    *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  }

/* roulang page: category3 */
:root{
  --brand:#1857A6;
  --brand-dark:#12488C;
  --brand-light:#EAF2FC;
  --accent:#F2803C;
  --teal:#12A594;
  --bg:#F7FAFE;
  --card:#FFFFFF;
  --soft:#EFF5FC;
  --border:#E2EAF4;
  --line:#EDF2F8;
  --ink:#0E1B2B;
  --ink2:#465C74;
  --ink3:#7A8CA3;
  --r8:8px; --r12:12px; --r16:16px; --r20:20px;
  --sh-sm:0 1px 2px rgba(16,42,77,.06);
  --sh-md:0 10px 28px -10px rgba(16,42,77,.18);
  --sh-lg:0 28px 56px -16px rgba(16,42,77,.24);
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
ul,ol{margin:0;padding:0}
button,input{font:inherit}
h1,h2,h3,h4,p{margin:0}
a:focus-visible,button:focus-visible,input:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:var(--sh-sm);
}
.header-inner{display:flex;align-items:center;gap:16px;min-height:74px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(160deg,#1F66BD,#12488C);
  color:#fff;display:grid;place-items:center;
  font-weight:700;font-size:17px;letter-spacing:0;
  box-shadow:0 6px 14px -8px rgba(24,87,166,.9);
}
.brand-text{font-weight:700;font-size:17px;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.nav-chips{
  display:flex;align-items:center;gap:6px;
  background:var(--soft);
  border-radius:999px;
  padding:6px;
  overflow-x:auto;
  scrollbar-width:none;
  scroll-snap-type:x proximity;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  font-size:14px;line-height:1;
  padding:10px 16px;border-radius:999px;
  border:1px solid transparent;
  color:var(--ink2);white-space:nowrap;
  scroll-snap-align:start;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.chip:hover{color:var(--brand);border-color:#CFE3F8;background:#fff}
.chip.is-active{
  background:var(--brand);color:#fff;border-color:var(--brand);
  box-shadow:0 6px 14px -8px rgba(24,87,166,.9);
}
.chip.is-active:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff}
.header-actions{display:flex;align-items:center;gap:18px;margin-left:auto;flex-shrink:0}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap;
}
.link-arrow svg{transition:transform .2s ease-out}
.link-arrow:hover{color:var(--brand-dark)}
.link-arrow:hover svg{transform:translateX(3px)}
.nav-toggle{
  display:none;margin-left:auto;
  width:42px;height:42px;flex-shrink:0;
  align-items:center;justify-content:center;
  border:1px solid var(--border);border-radius:var(--r12);
  background:#fff;color:var(--ink);cursor:pointer;
  transition:background .2s ease-out,border-color .2s ease-out;
}
.nav-toggle:hover{background:var(--brand-light);border-color:#CFE3F8}
.nav-drawer{display:none;border-top:1px solid var(--line);padding:14px 0 20px}
.nav-drawer.is-open{display:block}
.drawer-links{display:grid;gap:8px;margin-bottom:14px}
.drawer-links a{
  display:block;padding:12px 16px;
  border:1px solid var(--border);border-radius:var(--r12);
  background:#fff;font-size:15px;color:var(--ink2);
  transition:all .2s ease-out;
}
.drawer-links a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light)}
.drawer-links a.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.drawer-cta{width:100%}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--r12);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;white-space:nowrap;
  transition:background .2s ease-out,color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.btn svg{transition:transform .2s ease-out}
.btn:hover svg{transform:translateX(3px)}
.btn-primary{
  background:var(--brand);color:#fff;
  box-shadow:0 8px 18px -10px rgba(24,87,166,.95);
}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-sm)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C8DCF2}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-white{background:#fff;color:var(--brand);box-shadow:var(--sh-sm)}
.btn-white:hover{background:#F4F9FF;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;pointer-events:none;transform:none}

/* ============ Tag ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.01em;
  background:var(--brand-light);color:var(--brand);
}
.tag-accent{background:#FFF1E7;color:#C25F20}
.tag-lite{background:#fff;border:1px solid var(--border);color:var(--ink2)}
.tag-onimg{background:rgba(255,255,255,.94);color:var(--brand)}

/* ============ Page Hero ============ */
.page-hero{
  background:linear-gradient(180deg,#F5F9FE 0%,#EAF2FC 100%);
  border-bottom:1px solid var(--border);
  padding:48px 0 44px;
}
@media(min-width:768px){.page-hero{padding:64px 0 56px}}
.page-title{
  font-size:clamp(30px,4vw,46px);
  line-height:1.25;font-weight:700;letter-spacing:-.01em;
  margin:16px 0 0;
}
.page-lead{
  margin:16px 0 0;max-width:760px;
  font-size:16px;line-height:1.85;color:var(--ink2);
}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:14px 30px;
  list-style:none;margin:28px 0 0;padding:0;
  font-size:14px;color:var(--ink2);
}
.hero-stats li{display:flex;align-items:baseline;gap:8px}
.hero-stats li+li{padding-left:30px;border-left:1px solid #D6E4F5}
.hero-stats strong{
  font-size:20px;font-weight:700;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
@media(max-width:639px){
  .hero-stats li+li{padding-left:0;border-left:0}
}

/* ============ Section ============ */
.section{padding:52px 0}
@media(min-width:768px){.section{padding:68px 0}}
@media(min-width:1024px){.section{padding:84px 0}}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px 24px;flex-wrap:wrap;margin-bottom:28px;
}
.section-title{
  font-size:clamp(22px,2.6vw,29px);
  font-weight:700;line-height:1.35;letter-spacing:-.01em;
}
.section-sub{margin:10px 0 0;color:var(--ink2);font-size:15px;max-width:660px}

/* ============ Magazine ============ */
.feature-card{
  position:relative;display:block;
  border-radius:var(--r20);overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--sh-md);
  height:clamp(320px,38vw,440px);
  transition:box-shadow .25s ease-out,transform .25s ease-out;
}
.feature-card:hover{box-shadow:var(--sh-lg);transform:translateY(-2px)}
.feature-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease-out}
.feature-card:hover img{transform:scale(1.04)}
.feature-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,27,43,0) 28%,rgba(14,27,43,.55) 68%,rgba(14,27,43,.85) 100%);
}
.feature-body{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:24px;color:#fff;
}
@media(min-width:768px){.feature-body{padding:34px 38px}}
.feature-title{
  font-size:clamp(20px,2.6vw,28px);
  font-weight:700;line-height:1.35;letter-spacing:-.01em;
  margin:14px 0 0;color:#fff;
}
.feature-desc{
  margin:10px 0 0;max-width:620px;
  font-size:14px;line-height:1.8;color:rgba(255,255,255,.86);
}
.feature-meta{
  display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:16px;
  font-size:13px;color:rgba(255,255,255,.75);
  font-variant-numeric:tabular-nums;
}

.grid-2{display:grid;grid-template-columns:1fr;gap:22px;margin-top:22px}
@media(min-width:768px){.grid-2{grid-template-columns:1fr 1fr;gap:24px}}
.mini-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--r16);overflow:hidden;
  box-shadow:var(--sh-sm);
  transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.mini-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:#CFE3F8}
.mini-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--soft)}
.mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.mini-card:hover .mini-thumb img{transform:scale(1.04)}
.mini-thumb .tag{position:absolute;left:14px;top:14px;z-index:2}
.mini-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.mini-title{font-size:19px;font-weight:700;line-height:1.45;letter-spacing:-.01em}
.mini-desc{font-size:14px;line-height:1.8;color:var(--ink2)}
.mini-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink3);
}

/* ============ Numbered list ============ */
.num-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.num-layout{grid-template-columns:290px 1fr;gap:56px;align-items:start}}
.num-aside{position:static}
@media(min-width:1024px){.num-aside{position:sticky;top:104px}}
.num-aside .section-sub{margin-top:14px}
.num-list{list-style:none;border-top:1px solid var(--border)}
.num-item{
  display:grid;grid-template-columns:auto 1fr;gap:18px;
  align-items:start;padding:22px 0;
  border-bottom:1px solid var(--border);
  transition:background .2s ease-out,padding-left .2s ease-out;
}
@media(min-width:768px){.num-item{gap:26px;padding:26px 0}}
.num-item:hover{background:rgba(234,242,252,.55)}
.num-idx{
  font-size:34px;font-weight:700;line-height:1;
  color:#C9DCEE;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  transition:color .2s ease-out;
  min-width:56px;
}
@media(min-width:768px){.num-idx{font-size:42px;min-width:72px}}
.num-item:hover .num-idx{color:var(--brand)}
.num-title{font-size:18px;font-weight:600;line-height:1.5;letter-spacing:-.01em;margin:0}
.num-desc{margin:6px 0 0;font-size:14px;line-height:1.8;color:var(--ink2)}
.num-meta{
  display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:8px;
  font-size:13px;color:var(--ink3);font-variant-numeric:tabular-nums;
}

/* ============ Steps ============ */
.steps{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:768px){.steps{grid-template-columns:repeat(3,1fr);gap:22px}}
.step-card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--r16);padding:24px;
  box-shadow:var(--sh-sm);
  transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.step-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px)}
.step-num{
  width:34px;height:34px;border-radius:999px;
  display:grid;place-items:center;
  background:var(--brand-light);color:var(--brand);
  font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.step-card h3{font-size:17px;font-weight:600;line-height:1.5;margin:0 0 8px}
.step-card p{font-size:14px;line-height:1.8;color:var(--ink2)}

/* ============ CTA band ============ */
.cta-band{
  background:var(--brand-light);
  border-top:1px solid #D7E5F6;
  border-bottom:1px solid #D7E5F6;
  padding:52px 0;
}
@media(min-width:768px){.cta-band{padding:64px 0}}
.cta-inner{display:grid;grid-template-columns:1fr;gap:28px}
@media(min-width:1024px){.cta-inner{grid-template-columns:1fr 1fr;gap:56px;align-items:center}}
.cta-title{
  font-size:clamp(22px,2.6vw,28px);
  font-weight:700;line-height:1.35;letter-spacing:-.01em;margin:12px 0 0;
}
.cta-text{margin:12px 0 0;font-size:15px;line-height:1.85;color:var(--ink2);max-width:480px}
.cta-form{
  background:#fff;border:1px solid #D7E5F6;border-radius:var(--r16);
  padding:22px;box-shadow:var(--sh-sm);
}
@media(min-width:768px){.cta-form{padding:26px}}
.form-label{display:block;font-size:13px;color:var(--ink2);margin-bottom:8px}
.form-row{display:flex;flex-wrap:wrap;gap:10px}
.form-input{
  flex:1 1 200px;min-width:0;height:48px;padding:0 15px;
  border:1px solid var(--border);border-radius:var(--r12);
  background:#fff;color:var(--ink);font-size:15px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.form-input::placeholder{color:var(--ink3)}
.form-input:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(24,87,166,.14);
}
.form-note{
  margin:12px 0 0;font-size:13px;color:var(--ink3);line-height:1.7;
  display:flex;align-items:center;gap:8px;
}
.form-note .dot{width:7px;height:7px;border-radius:999px;background:var(--teal);flex-shrink:0}

/* ============ Footer ============ */
.site-footer{background:var(--soft);border-top:1px solid var(--border);padding:52px 0 0}
@media(min-width:768px){.site-footer{padding:60px 0 0}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:36px}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:44px}}
.footer-brand .brand{margin-bottom:14px}
.footer-desc{font-size:14px;line-height:1.8;color:var(--ink2);max-width:340px;margin:0}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social span{
  width:34px;height:34px;border-radius:999px;
  display:grid;place-items:center;
  background:#fff;border:1px solid var(--border);
  font-size:13px;color:var(--ink2);
  transition:all .2s ease-out;
}
.footer-social span:hover{color:var(--brand);border-color:#CFE3F8;background:var(--brand-light)}
.footer-col h3{font-size:13px;font-weight:700;letter-spacing:.02em;color:var(--ink);margin:0 0 14px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col li a{font-size:14px;color:var(--ink2)}
.footer-col li a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.footer-note{margin:10px 0 0;font-size:13px;line-height:1.7;color:var(--ink3)}
.footer-form{margin-top:12px}
.footer-form label{display:block;font-size:13px;color:var(--ink2);margin-bottom:6px}
.field{display:flex;gap:8px;flex-wrap:wrap}
.footer-input{
  flex:1 1 150px;min-width:0;height:44px;padding:0 14px;
  border:1px solid var(--border);border-radius:var(--r12);
  background:#fff;color:var(--ink);font-size:14px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.footer-input::placeholder{color:var(--ink3)}
.footer-input:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(24,87,166,.14);
}
.footer-bottom{
  margin-top:38px;border-top:1px solid var(--border);
  padding:20px 0 22px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 24px;font-size:13px;color:var(--ink3);
}
.footer-bottom p{margin:0}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:8px 18px}
.footer-bottom-links a{color:var(--ink3)}
.footer-bottom-links a:hover{color:var(--brand)}