/* roulang page: index */
:root{
  --c-brand:#1B5FD9;
  --c-brand-deep:#123F96;
  --c-brand-soft:#E8F0FE;
  --c-accent:#FF6B3D;
  --c-accent-soft:#FFEDE6;
  --c-mint:#1FA98F;
  --c-mint-soft:#E6F7F3;
  --c-warn:#F0A020;
  --c-danger:#E5484D;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#F0F4FB;
  --c-line:#E3E9F3;
  --c-line-2:#EEF2F8;
  --c-text:#18222F;
  --c-text-2:#5A6B85;
  --c-text-3:#8B9AB1;
  --c-dark:#0E1F3C;
  --c-dark-text:#E7EEF9;
  --r-card:16px;
  --r-lg:20px;
  --r-xl:24px;
  --r-img:12px;
  --r-pill:999px;
  --sh-card:0 8px 24px rgba(16,35,70,.08);
  --sh-hover:0 16px 40px rgba(16,35,70,.13);
  --sh-nav:0 6px 20px rgba(16,35,70,.07);
  --sp-section:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  padding-bottom:76px;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--c-brand);text-decoration:none;transition:color .2s var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:3px solid rgba(27,95,217,.32);
  outline-offset:2px;
  border-radius:6px;
}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input{font:inherit;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 28px;}}
@media (min-width:1024px){
  .container{padding:0 32px;}
  body{padding-bottom:0;}
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:var(--sh-nav);}
.header-inner{display:flex;align-items:center;gap:16px;height:64px;}
@media (min-width:1024px){.header-inner{height:76px;}}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:11px;flex:0 0 40px;
  background:linear-gradient(140deg,var(--c-brand),var(--c-brand-deep));
  display:grid;place-items:center;color:#fff;
  box-shadow:0 6px 16px rgba(27,95,217,.28);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:-.02em;white-space:nowrap;}
.brand:hover .brand-text{color:var(--c-brand);}
@media (min-width:1024px){.brand-text{font-size:20px;}}
.main-nav{display:none;}
@media (min-width:1024px){
  .main-nav{
    display:flex;align-items:center;gap:6px;margin-left:auto;
  }
  .nav-link{
    position:relative;
    display:block;padding:8px 12px;
    font-size:15px;font-weight:500;color:var(--c-text-2);
    border-radius:10px;
  }
  .nav-link::after{
    content:"";position:absolute;left:50%;bottom:2px;
    width:0;height:3px;border-radius:3px;background:var(--c-brand);
    transform:translateX(-50%);
    transition:width .2s var(--ease);
  }
  .nav-link:hover{color:var(--c-brand);background:var(--c-brand-soft);}
  .nav-link:hover::after{width:18px;}
  .nav-link.is-active{color:var(--c-brand);font-weight:600;}
  .nav-link.is-active::after{width:22px;}
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
@media (min-width:1024px){.header-actions{margin-left:8px;}}
.hamburger{
  width:40px;height:40px;border-radius:10px;
  display:grid;place-items:center;
  background:var(--c-surface-2);color:var(--c-text);
  border:1px solid var(--c-line);
  transition:background .2s var(--ease);
}
.hamburger:hover{background:var(--c-brand-soft);color:var(--c-brand);}
.hamburger svg{width:20px;height:20px;}
@media (min-width:1024px){.hamburger{display:none;}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn svg{width:16px;height:16px;}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:0 8px 20px rgba(27,95,217,.26);}
.btn-primary:hover{background:var(--c-brand-deep);transform:translateY(-1px);box-shadow:0 12px 26px rgba(27,95,217,.32);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:var(--c-surface);color:var(--c-brand);border:1px solid var(--c-brand);}
.btn-outline:hover{background:var(--c-brand-soft);}
.btn-light{background:#fff;color:var(--c-brand);}
.btn-light:hover{background:#EAF1FE;transform:translateY(-1px);}
.btn-ghost-dark{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);}
.btn-ghost-dark:hover{background:rgba(255,255,255,.12);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-brand);
}
.text-link svg{width:15px;height:15px;transition:transform .2s var(--ease);}
.text-link:hover{text-decoration:underline;text-underline-offset:3px;}
.text-link:hover svg{transform:translateX(3px);}

/* ---------- Chips / Badges ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
}
.chip svg{width:13px;height:13px;}
.chip-brand{background:var(--c-brand-soft);color:var(--c-brand);}
.chip-accent{background:var(--c-accent-soft);color:#C93F16;}
.chip-mint{background:var(--c-mint-soft);color:#0F7A66;}
.chip-plain{background:var(--c-surface-2);color:var(--c-text-2);}
.chip-solid{background:var(--c-brand);color:#fff;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--c-brand);text-transform:uppercase;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--c-accent);}

/* ---------- Sections ---------- */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:92px 0;}}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:28px;flex-wrap:wrap;
}
.section-head h2{font-size:22px;line-height:1.3;}
@media (min-width:1024px){.section-head h2{font-size:32px;}}
.section-head .sub{margin-top:8px;font-size:15px;color:var(--c-text-2);max-width:640px;}
.section-head .link-wrap{flex:0 0 auto;padding-bottom:6px;}

/* ---------- Hero ---------- */
.hero{padding:36px 0 8px;}
@media (min-width:1024px){.hero{padding:56px 0 16px;}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:1024px){.hero-grid{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;}}
.hero-copy{max-width:560px;}
.hero h1{
  margin-top:16px;
  font-size:28px;line-height:1.18;letter-spacing:-.02em;
}
@media (min-width:768px){.hero h1{font-size:38px;}}
@media (min-width:1024px){.hero h1{font-size:48px;}}
.hero-sub{margin-top:16px;font-size:16px;line-height:1.85;color:var(--c-text-2);}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px;}
@media (max-width:479px){
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
}
.hero-stats{
  margin-top:28px;display:grid;grid-template-columns:repeat(3,1fr);
  gap:12px;padding-top:24px;border-top:1px solid var(--c-line);
}
.hero-stats .num{font-size:24px;font-weight:700;color:var(--c-brand);font-variant-numeric:tabular-nums;line-height:1.2;}
@media (min-width:1024px){.hero-stats .num{font-size:28px;}}
.hero-stats .label{margin-top:4px;font-size:12px;color:var(--c-text-3);line-height:1.6;}
.hero-visual{position:relative;}
.phone-card{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--sh-card);background:var(--c-surface-2);
  aspect-ratio:9/16;max-width:380px;margin:0 auto;
  border:1px solid var(--c-line);
}
@media (max-width:1023px){
  .phone-card{aspect-ratio:4/5;max-height:60vh;width:100%;max-width:100%;}
}
.phone-card img{width:100%;height:100%;object-fit:cover;}
.phone-card .chip{position:absolute;top:14px;left:14px;box-shadow:0 6px 16px rgba(16,35,70,.18);}
.phone-caption{
  position:absolute;left:0;right:0;bottom:0;padding:56px 18px 20px;
  background:linear-gradient(180deg,rgba(14,31,60,0) 0%,rgba(14,31,60,.82) 100%);
  color:#fff;font-size:14px;line-height:1.7;
}
.phone-progress{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(255,255,255,.28);}
.phone-progress span{display:block;height:100%;width:62%;background:var(--c-brand);}

/* ---------- Trust strip ---------- */
.trust{padding:20px 0 0;}
.trust-rail{
  display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 0 8px;scrollbar-width:none;
}
.trust-rail::-webkit-scrollbar{display:none;}
.trust-item{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--c-surface-2);color:var(--c-text-2);
  font-size:12px;font-weight:600;white-space:nowrap;
  border:1px solid var(--c-line);
}
.trust-item svg{width:16px;height:16px;color:var(--c-brand);}

/* ---------- Rail / vertical cards ---------- */
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  margin:0 -20px;padding:8px 20px 24px;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none;}
@media (min-width:768px){.rail{margin:0 -28px;padding:8px 28px 24px;}}
@media (min-width:1024px){.rail{gap:24px;margin:0 -32px;padding:8px 32px 28px;}}
.rail > *{scroll-snap-align:start;flex:0 0 220px;}
@media (min-width:768px){.rail > *{flex:0 0 240px;}}
@media (min-width:1024px){.rail > *{flex:0 0 268px;}}
.clip-card{display:flex;flex-direction:column;}
.clip-thumb{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:9/16;background:var(--c-surface-2);
  box-shadow:var(--sh-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.clip-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.clip-card:hover .clip-thumb{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.clip-card:hover .clip-thumb img{transform:scale(1.03);}
.clip-thumb .chip{position:absolute;top:12px;left:12px;}
.clip-duration{
  position:absolute;top:12px;right:12px;
  height:22px;padding:0 9px;border-radius:var(--r-pill);
  background:rgba(0,0,0,.55);color:#fff;
  font-size:11px;font-weight:600;line-height:22px;
  font-variant-numeric:tabular-nums;
}
.clip-thumb .clip-line{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:rgba(255,255,255,.3);
}
.clip-thumb .clip-line span{display:block;height:100%;width:45%;background:var(--c-brand);}
.clip-body{padding:14px 4px 0;display:flex;flex-direction:column;gap:8px;}
.clip-title{
  font-size:16px;font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  color:var(--c-text);
}
.clip-card:hover .clip-title{color:var(--c-brand);}
.clip-meta{font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums;}

/* ---------- Numbered list ---------- */
.pick-list{display:grid;grid-template-columns:1fr;gap:40px;}
@media (min-width:1024px){.pick-list{gap:64px;}}
.pick-item{display:grid;grid-template-columns:1fr;gap:20px;align-items:center;}
@media (min-width:900px){
  .pick-item{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;}
  .pick-item.flip .pick-media{order:2;}
  .pick-item.flip .pick-text{order:1;}
}
.pick-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);box-shadow:var(--sh-card);
}
.pick-text{position:relative;}
.pick-num{
  font-size:36px;font-weight:700;line-height:1;color:transparent;
  -webkit-text-stroke:1.5px rgba(27,95,217,.45);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
@media (min-width:1024px){.pick-num{font-size:56px;}}
.pick-text h3{margin-top:12px;font-size:19px;line-height:1.45;}
.pick-text p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--c-text-2);}
.pick-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.pick-text .text-link{margin-top:16px;}

/* ---------- Post cards (CMS) ---------- */
.post-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
@media (min-width:1280px){.post-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}
.post-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:20px;
  box-shadow:var(--sh-card);color:inherit;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.post-card:hover,.post-card:focus-visible{
  transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#CFDDF5;
}
.post-card .post-title{
  font-size:16px;font-weight:600;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover .post-title{color:var(--c-brand);}
.post-card .post-summary{
  font-size:15px;line-height:1.8;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-time{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums;
  padding-top:6px;
}
.post-time svg{width:13px;height:13px;}
.empty-state{
  background:var(--c-surface-2);border-radius:var(--r-card);
  border:1px dashed var(--c-line);
  padding:44px 24px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state svg{width:32px;height:32px;color:rgba(27,95,217,.4);}
.empty-state p{font-size:15px;color:var(--c-text-2);}

/* ---------- Reviews ---------- */
.review-card{
  flex:0 0 290px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:20px;
  box-shadow:var(--sh-card);
  display:flex;flex-direction:column;gap:12px;
}
@media (min-width:768px){.review-card{flex:0 0 320px;}}
.review-top{display:flex;align-items:center;gap:12px;}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:0 0 44px;
  background:var(--c-brand-soft);color:var(--c-brand);
  display:grid;place-items:center;font-weight:700;font-size:16px;
}
.review-name{font-size:14px;font-weight:600;}
.review-time{font-size:12px;color:var(--c-text-3);}
.stars{display:flex;gap:3px;color:var(--c-mint);}
.stars svg{width:15px;height:15px;}
.review-text{font-size:15px;line-height:1.8;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.review-foot{margin-top:auto;}

/* ---------- CTA block ---------- */
.cta-block{
  background:var(--c-dark);border-radius:var(--r-xl);
  padding:28px;color:var(--c-dark-text);
  display:grid;grid-template-columns:1fr;gap:28px;align-items:center;
}
@media (min-width:1024px){.cta-block{padding:56px;grid-template-columns:minmax(0,1fr) 220px;gap:56px;}}
.cta-block h2{color:#fff;font-size:22px;line-height:1.32;}
@media (min-width:1024px){.cta-block h2{font-size:32px;}}
.cta-block .cta-sub{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(231,238,249,.86);max-width:620px;}
.cta-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}
@media (max-width:479px){
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
}
.cta-note{margin-top:16px;font-size:12px;color:#8FA6C7;}
.cta-media img{
  width:100%;aspect-ratio:3/4;object-fit:cover;
  border-radius:var(--r-card);border:1px solid rgba(255,255,255,.14);
}
@media (max-width:1023px){.cta-media{max-width:220px;margin:0 auto;}}

/* ---------- FAQ ---------- */
.faq-list{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);
}
.faq-item{border-bottom:1px solid var(--c-line-2);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 20px;min-height:60px;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-text);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.faq-q:hover{color:var(--c-brand);background:#FAFCFF;}
.faq-item.is-open .faq-q{color:var(--c-brand);}
.faq-icon{
  flex:0 0 20px;width:20px;height:20px;position:relative;
  transition:transform .18s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-brand);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:9px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px;transition:transform .18s var(--ease);}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .25s var(--ease);
}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a-inner{
  padding:0 20px 20px;font-size:15px;line-height:1.9;color:var(--c-text-2);
  border-left:4px solid var(--c-brand);margin-left:20px;padding-left:16px;
}
@media (min-width:1024px){.faq-q{min-height:64px;}}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-dark);color:var(--c-dark-text);margin-top:56px;padding:64px 0 0;}
@media (min-width:1024px){.site-footer{margin-top:96px;padding-top:72px;}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:40px;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;}}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-brand .brand-mark{background:linear-gradient(140deg,#2C74F0,#123F96);}
.footer-brand .brand-text{color:#fff;font-size:18px;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:#9FB4D4;max-width:340px;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{
  width:40px;height:40px;border-radius:11px;
  background:rgba(255,255,255,.08);color:#fff;
  display:grid;place-items:center;
  transition:background .2s var(--ease);
}
.footer-social a:hover{background:rgba(255,255,255,.18);}
.footer-social svg{width:18px;height:18px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{
  font-size:14px;color:#B9CAE4;
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(255,255,255,.4);}
.footer-sub p{font-size:13px;color:#9FB4D4;line-height:1.8;margin-bottom:14px;}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;}
.sub-form input{
  flex:1 1 160px;min-width:0;height:46px;border-radius:var(--r-img);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  color:#fff;padding:0 14px;font-size:16px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form input::placeholder{color:#7F96B8;}
.sub-form input:focus{
  outline:none;border-color:var(--c-brand);
  box-shadow:0 0 0 3px rgba(27,95,217,.35);
}
.sub-note{margin-top:12px;font-size:12px;color:#8FA6C7;}
.form-ok{
  display:none;margin-top:12px;padding:10px 14px;border-radius:10px;
  background:rgba(31,169,143,.16);border-left:3px solid var(--c-mint);
  color:#A9E7D9;font-size:13px;
}
.form-ok.is-show{display:block;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:12px;color:#8FA6C7;
}
.footer-bottom a{color:#8FA6C7;}
.footer-bottom a:hover{color:#fff;}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,31,60,.45);
  opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s var(--ease);
  z-index:200;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:88%;max-width:360px;
  background:#fff;z-index:210;border-radius:20px 0 0 20px;
  transform:translateX(102%);transition:transform .26s var(--ease);
  display:flex;flex-direction:column;padding:20px;
  box-shadow:-20px 0 60px rgba(16,35,70,.18);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--c-line);}
.drawer-close{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  background:var(--c-surface-2);color:var(--c-text-2);
}
.drawer-close svg{width:18px;height:18px;}
.drawer-nav{margin-top:8px;display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;padding:0 6px;font-size:17px;font-weight:600;color:var(--c-text);
  border-bottom:1px solid var(--c-line-2);
}
.drawer-nav a svg{width:16px;height:16px;color:var(--c-text-3);}
.drawer-nav a.is-active{color:var(--c-brand);}
.drawer-foot{margin-top:auto;padding-top:20px;}
@media (min-width:1024px){.drawer,.drawer-mask{display:none;}}

/* ---------- Bottom tab ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:150;
  background:#fff;border-top:1px solid var(--c-line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px rgba(16,35,70,.07);
  display:grid;grid-template-columns:repeat(4,1fr);
}
@media (min-width:1024px){.tabbar{display:none;}}
.tab-item{
  position:relative;height:60px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  color:var(--c-text-3);font-size:11px;font-weight:500;
}
.tab-item svg{width:22px;height:22px;}
.tab-item::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:0;height:3px;border-radius:0 0 3px 3px;background:var(--c-brand);
  transition:width .2s var(--ease);
}
.tab-item.is-active{color:var(--c-brand);font-weight:600;}
.tab-item.is-active::before{width:24px;}

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

/* roulang page: article */
:root{
  --c-brand:#1B5FD9;
  --c-brand-deep:#123F96;
  --c-brand-soft:#E8F0FE;
  --c-accent:#FF6B3D;
  --c-accent-soft:#FFEDE6;
  --c-mint:#1FA98F;
  --c-mint-soft:#E4F6F2;
  --c-warn:#F0A020;
  --c-danger:#E5484D;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#F0F4FB;
  --c-line:#E3E9F3;
  --c-divider:#EEF2F8;
  --c-text:#18222F;
  --c-text-2:#5A6B85;
  --c-text-weak:#8B9AB1;
  --c-dark:#0E1F3C;
  --c-dark-line:rgba(255,255,255,.12);
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-card:0 8px 24px rgba(16,35,70,.08);
  --sh-card-hover:0 16px 40px rgba(16,35,70,.13);
  --sh-nav:0 6px 20px rgba(16,35,70,.07);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:200ms var(--ease);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:15px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  padding-bottom:76px;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;color:var(--c-text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:3px solid rgba(27,95,217,.35);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:16px;top:-60px;z-index:200;background:var(--c-brand);color:#fff;padding:10px 16px;border-radius:10px;transition:top var(--t)}
.skip-link:focus{top:12px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 28px}}
@media(min-width:1024px){.container{padding:0 32px}}
@media(min-width:1440px){.container{padding:0 32px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:height var(--t),box-shadow var(--t),border-color var(--t);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px;transition:height var(--t)}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:var(--sh-nav)}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:40px;height:40px;border-radius:12px;background:var(--c-brand);color:#fff;display:flex;align-items:center;justify-content:center;flex:0 0 auto;box-shadow:0 6px 16px rgba(27,95,217,.28)}
.brand-mark svg{width:22px;height:22px}
.brand-text{font-size:20px;font-weight:700;letter-spacing:-.01em;color:var(--c-text);transition:color var(--t)}
.brand:hover .brand-text{color:var(--c-brand)}
.main-nav{display:none}
.nav-link{position:relative;padding:8px 14px;font-size:15px;font-weight:500;color:var(--c-text-2);border-radius:8px;transition:color var(--t),background var(--t)}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;background:var(--c-brand);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.nav-link:hover{color:var(--c-brand);background:var(--c-brand-soft)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-brand)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;background:var(--c-surface);transition:border-color var(--t),background var(--t)}
.nav-toggle:hover{border-color:var(--c-brand);background:var(--c-brand-soft)}
.nav-toggle svg{width:20px;height:20px}
@media(min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:4px}
  .nav-toggle{display:none}
}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-pill);font-size:15px;font-weight:600;line-height:1;transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);border:1px solid transparent;white-space:nowrap}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:0 8px 20px rgba(27,95,217,.24)}
.btn-primary:hover{background:var(--c-brand-deep);transform:translateY(-1px);box-shadow:0 12px 26px rgba(18,63,150,.28)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-outline{background:var(--c-surface);color:var(--c-brand);border-color:rgba(27,95,217,.42)}
.btn-outline:hover{background:var(--c-brand-soft);border-color:var(--c-brand)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost{background:var(--c-brand-soft);color:var(--c-brand)}
.btn-ghost:hover{background:#DCE8FD}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-lg{height:48px;padding:0 26px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.btn-block{width:100%}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--c-brand-soft);color:var(--c-brand);font-size:12px;font-weight:600;line-height:1;white-space:nowrap}
.badge-accent{background:var(--c-accent-soft);color:#D8451A}
.badge-mint{background:var(--c-mint-soft);color:#12806C}
.badge-plain{background:var(--c-surface-2);color:var(--c-text-2)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--c-brand);text-transform:uppercase}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent)}

/* ---------- 移动抽屉 ---------- */
.drawer-overlay{position:fixed;inset:0;background:rgba(14,31,60,.45);opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:110}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:88%;max-width:360px;background:var(--c-surface);z-index:120;transform:translateX(102%);transition:transform 240ms var(--ease);border-top-left-radius:20px;border-bottom-left-radius:20px;display:flex;flex-direction:column;padding:20px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-title{font-size:16px;font-weight:700}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center}
.drawer-close svg{width:18px;height:18px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1}
.drawer-link{display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 8px;font-size:17px;font-weight:600;color:var(--c-text);border-bottom:1px solid var(--c-divider);transition:color var(--t)}
.drawer-link:hover{color:var(--c-brand)}
.drawer-link svg{width:16px;height:16px;color:var(--c-text-weak)}
.drawer-link.is-active{color:var(--c-brand)}
.drawer-foot{padding-top:18px}

/* ---------- 底部 Tab ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--c-surface);border-top:1px solid var(--c-line);
  box-shadow:0 -6px 20px rgba(16,35,70,.07);
  height:60px;padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;color:var(--c-text-weak);position:relative;min-height:48px;transition:color var(--t)}
.tab-item svg{width:22px;height:22px}
.tab-item::before{content:"";position:absolute;top:6px;width:20px;height:3px;border-radius:3px;background:var(--c-brand);opacity:0;transition:opacity var(--t)}
.tab-item.is-active{color:var(--c-brand);font-weight:600}
.tab-item.is-active::before{opacity:1}
@media(min-width:1024px){
  .tabbar{display:none}
  body{padding-bottom:0}
}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13px;color:var(--c-text-weak);padding:22px 0 0}
.breadcrumb a{transition:color var(--t)}
.breadcrumb a:hover{color:var(--c-brand)}
.breadcrumb .sep{color:#C3CEDF}
.breadcrumb .current{color:var(--c-text-2);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-head{padding:18px 0 0;max-width:860px}
.article-head h1{font-size:28px;line-height:1.3;margin:12px 0 14px;max-width:820px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-weak)}
.article-meta .dot{color:#C3CEDF}
.article-meta time{font-variant-numeric:tabular-nums}
.article-cover{margin:24px 0 0;border-radius:var(--r-card);overflow:hidden;background:#EEF3FA;box-shadow:var(--sh-card)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{font-size:12px;color:var(--c-text-weak);text-align:center;padding:10px 12px 0}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:1fr;gap:32px;padding:32px 0 0}
.article-body{min-width:0}
@media(min-width:1024px){
  .article-head h1{font-size:40px;line-height:1.25}
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:48px;padding-top:40px}
  .article-side{position:sticky;top:96px;align-self:start}
}

/* ---------- 富文本正文 ---------- */
.rich-text{max-width:760px;font-size:15.5px;line-height:1.9;color:var(--c-text)}
.rich-text > * + *{margin-top:20px}
.rich-text > p:first-of-type{font-size:17px;color:#22303F}
.rich-text h2{position:relative;font-size:22px;line-height:1.35;margin:44px 0 16px;padding-left:16px;scroll-margin-top:96px}
.rich-text h2::before{content:"";position:absolute;left:0;top:6px;width:4px;height:20px;border-radius:3px;background:var(--c-brand)}
.rich-text h3{font-size:18px;line-height:1.45;margin:32px 0 12px;scroll-margin-top:96px}
.rich-text h4{font-size:16px;margin:24px 0 10px}
.rich-text ul,.rich-text ol{padding-left:22px}
.rich-text ul{list-style:none}
.rich-text ul li{position:relative;padding-left:16px;line-height:1.9}
.rich-text ul li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--c-brand)}
.rich-text ol{list-style:decimal}
.rich-text ol li{line-height:1.9;padding-left:4px}
.rich-text li + li{margin-top:6px}
.rich-text blockquote{background:var(--c-surface-2);border-left:4px solid var(--c-brand);border-radius:0 12px 12px 0;padding:18px 20px;color:var(--c-text-2);font-size:16px;margin:26px 0}
.rich-text blockquote p{margin:0}
.rich-text a{color:var(--c-brand);border-bottom:1px solid rgba(27,95,217,.3);transition:border-color var(--t)}
.rich-text a:hover{border-bottom-color:var(--c-brand)}
.rich-text img{border-radius:12px;margin:24px auto}
.rich-text figure{margin:24px 0}
.rich-text figcaption{font-size:12px;color:var(--c-text-weak);text-align:center;margin-top:8px}
.rich-text table{width:100%;border-collapse:collapse;font-size:14.5px;border:1px solid var(--c-line);border-radius:12px;overflow:hidden}
.rich-text th,.rich-text td{padding:12px 14px;border-bottom:1px solid var(--c-divider);text-align:left}
.rich-text th{background:var(--c-surface-2);font-weight:600;color:var(--c-text)}
.rich-text tr:last-child td{border-bottom:0}
.rich-text code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--c-surface-2);border-radius:8px;padding:2px 6px;font-size:14px}
.rich-text pre{background:#0E1F3C;color:#E7EEF9;border-radius:12px;padding:18px;overflow-x:auto;font-size:14px}
.rich-text pre code{background:none;color:inherit;padding:0}
.rich-text hr{border:0;border-top:1px solid var(--c-divider);margin:28px 0}
.table-wrap{overflow-x:auto;border-radius:12px}

/* 空态 / 加载 / 错误 */
.empty-state{background:var(--c-surface-2);border-radius:var(--r-card);padding:44px 24px;text-align:center}
.empty-state svg{width:32px;height:32px;color:rgba(27,95,217,.4);margin:0 auto 12px}
.empty-state p{font-size:15px;color:var(--c-text-2);margin-bottom:18px}
.skeleton{border-radius:var(--r-card);background:#EEF3FA;height:180px;position:relative;overflow:hidden}
.skeleton::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.75),transparent);transform:translateX(-100%);animation:shimmer 1.4s infinite}
@keyframes shimmer{to{transform:translateX(100%)}}

/* ---------- 正文尾部：标签 / 上下篇 / 相关 ---------- */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--c-divider)}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--c-surface-2);color:var(--c-text-2);font-size:12px;font-weight:600;transition:background var(--t),color var(--t)}
.tag:hover{background:var(--c-brand);color:#fff}
.post-nav{display:grid;grid-template-columns:1fr;gap:14px;margin-top:28px}
.post-nav a{display:flex;flex-direction:column;gap:6px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:16px 18px;transition:border-color var(--t),box-shadow var(--t),transform var(--t)}
.post-nav a:hover{border-color:var(--c-brand);box-shadow:var(--sh-card);transform:translateY(-2px)}
.post-nav .dir{font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--c-brand)}
.post-nav .t{font-size:15px;font-weight:600;color:var(--c-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.post-nav .arrow{font-size:13px;color:var(--c-text-weak)}
@media(min-width:640px){.post-nav{grid-template-columns:1fr 1fr}}

.related{margin-top:44px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px}
.section-head h2{font-size:20px;line-height:1.35}
.section-head .more{font-size:14px;font-weight:600;color:var(--c-brand);display:inline-flex;align-items:center;gap:6px;transition:gap var(--t)}
.section-head .more:hover{gap:10px}
.related-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:640px){.related-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr);gap:24px}}

.card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;transition:box-shadow var(--t),transform var(--t),border-color var(--t)}
.card:hover{box-shadow:var(--sh-card-hover);transform:translateY(-4px);border-color:#D3DEF2}
.card-media{position:relative;background:#EEF3FA}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.card-media .badge{position:absolute;left:12px;top:12px}
.card-body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 20px;flex:1}
.card-body h3{font-size:16px;line-height:1.45;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body .excerpt{font-size:14px;line-height:1.8;color:var(--c-text-2);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:12px;color:var(--c-text-weak);padding-top:12px;border-top:1px solid var(--c-divider)}
.card-foot .date{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
.card-foot svg{width:14px;height:14px}
.card-cta{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-brand)}

.back-row{margin-top:32px}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;margin-top:12px}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:18px 20px;box-shadow:var(--sh-card)}
.side-card h3{font-size:15px;font-weight:700;display:flex;align-items:center;gap:8px;margin-bottom:12px}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--c-brand)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow-y:auto}
.toc-list a{display:block;font-size:13.5px;line-height:1.7;color:var(--c-text-2);padding:7px 10px;border-left:2px solid var(--c-divider);border-radius:0 8px 8px 0;transition:color var(--t),background var(--t),border-color var(--t)}
.toc-list a:hover{color:var(--c-brand);background:var(--c-brand-soft)}
.toc-list a.is-current{color:var(--c-brand);border-left-color:var(--c-brand);background:var(--c-brand-soft);font-weight:600}
.hot-list{display:flex;flex-direction:column;gap:12px}
.hot-list li{display:flex;gap:10px;align-items:flex-start}
.hot-list .num{font-size:14px;font-weight:700;color:var(--c-brand);font-variant-numeric:tabular-nums;flex:0 0 22px;line-height:1.7}
.hot-list a{font-size:14px;line-height:1.6;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t)}
.hot-list a:hover{color:var(--c-brand)}
.side-cta{background:var(--c-surface-2);border-radius:var(--r-card);padding:20px}
.side-cta h4{font-size:15px;font-weight:700;margin-bottom:8px}
.side-cta p{font-size:13.5px;color:var(--c-text-2);line-height:1.75;margin-bottom:14px}

/* ---------- CTA 大区块 ---------- */
.cta-block{margin:64px auto 0;background:var(--c-dark);border-radius:24px;padding:28px;color:#E7EEF9}
.cta-inner{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
.cta-block h2{color:#fff;font-size:22px;line-height:1.35}
.cta-block p{color:#B9C9E2;font-size:14.5px;line-height:1.85;margin-top:10px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-actions .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff}
.cta-note{font-size:12px;color:#8FA6C7;margin-top:14px}
.cta-visual{display:none}
@media(min-width:768px){
  .cta-block{margin-top:88px;padding:44px}
  .cta-inner{grid-template-columns:1fr 200px}
  .cta-block h2{font-size:28px}
  .cta-visual{display:block}
  .cta-visual img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:20px}
}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:72px;background:var(--c-dark);color:#E7EEF9;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{box-shadow:none;background:var(--c-brand)}
.footer-brand .brand-text{color:#fff;font-size:19px}
.footer-desc{font-size:13.5px;line-height:1.85;color:#A9BCD8;max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:16px}
.footer-social a{width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:#fff;transition:background var(--t),transform var(--t)}
.footer-social a:hover{background:var(--c-brand);transform:translateY(-2px)}
.footer-social svg{width:18px;height:18px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:#B9C9E2;transition:color var(--t),border-color var(--t);border-bottom:1px solid transparent}
.footer-col a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.4)}
.footer-sub p{font-size:13.5px;color:#A9BCD8;line-height:1.8;margin-bottom:14px}
.sub-form{display:flex;gap:10px;flex-wrap:wrap}
.sub-form input{flex:1 1 160px;height:46px;border-radius:12px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.08);color:#fff;padding:0 14px;font-size:16px;transition:border-color var(--t),box-shadow var(--t)}
.sub-form input::placeholder{color:#8FA6C7}
.sub-form input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(27,95,217,.25)}
.sub-note{font-size:12px;color:#8FA6C7;margin-top:12px}
.footer-bottom{border-top:1px solid var(--c-dark-line);padding:18px 0 22px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12px;color:#8FA6C7}
@media(min-width:768px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media(min-width:1024px){
  .site-footer{padding-top:64px;margin-top:104px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
}

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

/* roulang page: category1 */
*,*::before,*::after{box-sizing:border-box}
:root{
  --c-brand:#1B5FD9;
  --c-brand-deep:#123F96;
  --c-brand-soft:#E8F0FE;
  --c-accent:#FF6B3D;
  --c-accent-soft:#FFEDE6;
  --c-mint:#1FA98F;
  --c-mint-soft:#E4F6F2;
  --c-warn:#F0A020;
  --c-danger:#E5484D;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#F0F4FB;
  --c-line:#E3E9F3;
  --c-divider:#EEF2F8;
  --c-text:#18222F;
  --c-text-2:#5A6B85;
  --c-text-weak:#8B9AB1;
  --c-dark:#0E1F3C;
  --c-dark-text:#E7EEF9;
  --r-sm:10px;
  --r-input:12px;
  --r-card:16px;
  --r-lg:20px;
  --r-xl:24px;
  --sh-card:0 8px 24px rgba(16,35,70,.08);
  --sh-card-hover:0 16px 40px rgba(16,35,70,.13);
  --sh-nav:0 6px 20px rgba(16,35,70,.07);
  --sh-pop:0 24px 60px rgba(16,35,70,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sp-section:56px;
  --header-h:56px;
}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-top:var(--header-h);
  padding-bottom:76px;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:15px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(27,95,217,.35);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:var(--header-h);
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:height .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%;gap:16px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  flex:none;width:36px;height:36px;border-radius:11px;
  background:linear-gradient(140deg,var(--c-brand),var(--c-brand-deep));
  color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(27,95,217,.28);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{
  font-size:16px;font-weight:700;color:var(--c-text);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.brand:hover .brand-text{color:var(--c-brand)}
.main-nav{display:none;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 14px;font-size:15px;font-weight:500;color:var(--c-text-2);
  border-radius:10px;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;
  border-radius:999px;background:var(--c-brand);
  transform:scaleX(0);transform-origin:center;transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--c-brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-brand);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px}
.header-actions .btn{display:none}
.nav-toggle{
  width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:var(--c-surface);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:var(--c-text);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;font-size:15px;
  padding:0 22px;height:44px;border:1px solid transparent;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:0 10px 22px rgba(27,95,217,.24)}
.btn-primary:hover{background:var(--c-brand-deep);transform:translateY(-1px);box-shadow:0 14px 28px rgba(27,95,217,.3)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px rgba(27,95,217,.22)}
.btn-ghost{background:var(--c-surface);color:var(--c-brand);border-color:rgba(27,95,217,.45)}
.btn-ghost:hover{background:rgba(27,95,217,.06);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--c-brand)}
.btn-light:hover{background:#EAF1FE;transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-brand);font-weight:600;font-size:15px;
}
.text-link svg{width:15px;height:15px;transition:transform .2s var(--ease)}
.text-link:hover{text-decoration:underline;text-underline-offset:4px}
.text-link:hover svg{transform:translateX(3px)}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 11px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
  background:var(--c-brand-soft);color:var(--c-brand);
}
.badge-accent{background:var(--c-accent-soft);color:#D9481C}
.badge-mint{background:var(--c-mint-soft);color:#11816C}
.badge-plain{background:var(--c-surface-2);color:var(--c-text-2)}

/* ---------- Section basics ---------- */
.section{padding:var(--sp-section) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;flex-wrap:wrap}
.section-head h2{font-size:22px;max-width:640px}
.section-head p{margin-top:10px;color:var(--c-text-2);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-brand);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
.bar-title{position:relative;padding-left:14px}
.bar-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:20px;border-radius:3px;background:var(--c-brand);
}

/* ---------- Breadcrumb ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-weak);flex-wrap:wrap}
.breadcrumb a:hover{color:var(--c-brand)}
.breadcrumb .sep{color:var(--c-text-weak);opacity:.7}
.breadcrumb .current{color:var(--c-text-2)}

/* ---------- Page head ---------- */
.page-head{padding:24px 0 var(--sp-section)}
.page-head-card{
  margin-top:18px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-xl);
  box-shadow:var(--sh-card);padding:26px 22px;
  display:grid;gap:26px;
}
.page-head-copy h1{font-size:28px;line-height:1.2;letter-spacing:-.02em}
.page-head-copy .lead{margin-top:16px;color:var(--c-text-2);font-size:15.5px;max-width:560px}
.page-head-copy .btn-group{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.page-head-copy .btn-group .btn{width:100%}
.page-head-figure{position:relative}
.page-head-figure img{
  width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--sh-card);
}
.page-head-figure .fig-tag{
  position:absolute;left:14px;top:14px;
}
.head-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
.head-stats .num{font-size:24px;font-weight:700;color:var(--c-brand);line-height:1.2}
.head-stats .lbl{font-size:12px;color:var(--c-text-2);margin-top:2px}

/* ---------- Category tabs ---------- */
.cat-tabs{
  margin-top:22px;display:flex;gap:10px;overflow-x:auto;
  scroll-snap-type:x mandatory;padding-bottom:6px;
  -webkit-overflow-scrolling:touch;
}
.cat-tabs::-webkit-scrollbar{height:0}
.cat-tab{
  flex:none;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:40px;padding:0 18px;
  border-radius:999px;border:1px solid var(--c-line);background:var(--c-surface);
  font-size:14px;font-weight:600;color:var(--c-text-2);
  transition:all .2s var(--ease);
}
.cat-tab:hover{border-color:var(--c-brand);color:var(--c-brand)}
.cat-tab.is-active{background:var(--c-brand);border-color:var(--c-brand);color:#fff;box-shadow:0 8px 18px rgba(27,95,217,.24)}

/* ---------- Alt flow ---------- */
.flow-list{display:grid;gap:44px}
.flow-item{
  display:grid;gap:20px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-xl);
  box-shadow:var(--sh-card);padding:22px;
  transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.flow-item:hover{box-shadow:var(--sh-card-hover);transform:translateY(-2px)}
.flow-figure{position:relative;order:-1}
.flow-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card)}
.flow-num{
  position:absolute;right:14px;top:14px;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--c-brand);background:rgba(232,240,254,.92);
  border-radius:999px;padding:4px 12px;
}
.flow-copy h2{font-size:22px;margin-top:12px}
.flow-copy h2 span{display:block;font-size:22px}
.flow-copy .p{margin-top:14px;color:var(--c-text-2);font-size:15px;line-height:1.9}
.check-list{margin-top:18px;display:grid;gap:10px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--c-text)}
.check-list li svg{flex:none;width:18px;height:18px;margin-top:5px;color:var(--c-mint)}

/* ---------- FAQ ---------- */
.faq-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-card);overflow:hidden}
.faq-item+.faq-item{border-top:1px solid var(--c-divider)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:58px;padding:14px 20px;text-align:left;
  font-size:15.5px;font-weight:600;color:var(--c-text);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.faq-q:hover{color:var(--c-brand);background:rgba(232,240,254,.4)}
.faq-item.is-open .faq-q{color:var(--c-brand)}
.faq-icon{
  flex:none;width:22px;height:22px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-brand-soft);color:var(--c-brand);
  font-size:15px;font-weight:700;line-height:1;
  transition:transform .2s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-panel-inner{padding:0 20px 20px;color:var(--c-text-2);font-size:14.5px;line-height:1.9}
.faq-item.is-open .faq-panel-inner{border-left:4px solid var(--c-brand);padding-left:16px;margin-left:20px}

/* ---------- Cards (related) ---------- */
.card-grid{display:grid;gap:16px}
.content-card{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.content-card:hover{box-shadow:var(--sh-card-hover);transform:translateY(-4px);border-color:rgba(27,95,217,.35)}
.content-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.content-card .card-body{padding:18px;display:flex;flex-direction:column;flex:1;gap:10px}
.content-card h3{font-size:16px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.content-card .exc{font-size:14.5px;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.content-card .meta{
  margin-top:auto;padding-top:8px;display:flex;align-items:center;gap:8px;
  font-size:12px;color:var(--c-text-weak);
}
.content-card .meta svg{width:14px;height:14px}
.content-card .card-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-brand);
  font-weight:600;font-size:14px;
}
.content-card .card-link svg{width:14px;height:14px;transition:transform .2s var(--ease)}
.content-card:hover .card-link svg{transform:translateX(3px)}

/* ---------- CTA ---------- */
.cta-block{
  background:var(--c-dark);border-radius:var(--r-xl);
  padding:28px 22px;color:var(--c-dark-text);
  display:grid;gap:24px;
}
.cta-block h2{color:#fff;font-size:22px}
.cta-block .cta-sub{margin-top:14px;color:#B9C9E3;font-size:15px}
.cta-block .btn-group{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.cta-block .btn-group .btn{width:100%}
.cta-note{margin-top:16px;font-size:12px;color:#8FA6C7}
.cta-figure img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:var(--r-lg)}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-dark);color:var(--c-dark-text);padding:56px 0 24px;margin-top:var(--sp-section)}
.footer-grid{display:grid;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-mark{background:#fff;color:var(--c-dark);box-shadow:none}
.footer-brand .brand-text{color:#fff;font-size:17px}
.footer-desc{margin-top:14px;font-size:14px;color:#AFC2DD;max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);color:#fff;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.footer-social a svg{width:18px;height:18px}
.footer-social a:hover{background:rgba(255,255,255,.18);transform:translateY(-2px)}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:#C3D2E8;border-bottom:1px solid transparent;transition:all .2s var(--ease)}
.footer-col a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.4)}
.footer-sub p{font-size:14px;color:#AFC2DD;margin-bottom:14px}
.sub-form{display:flex;gap:10px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 180px;min-width:0;height:46px;padding:0 14px;border-radius:var(--r-input);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  color:#fff;font-size:16px;
}
.sub-form input::placeholder{color:#8FA6C7}
.sub-form input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(27,95,217,.35)}
.sub-note{margin-top:12px;font-size:12px;color:#8FA6C7}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:#8FA6C7;
}

/* ---------- Mobile tabbar ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  height:60px;padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.97);backdrop-filter:blur(10px);
  border-top:1px solid var(--c-line);
  box-shadow:0 -6px 20px rgba(16,35,70,.07);
  display:grid;grid-template-columns:repeat(4,1fr);
}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;font-size:11px;color:var(--c-text-weak);min-height:48px;
  transition:color .2s var(--ease);
}
.tab-item svg{width:22px;height:22px}
.tab-item::before{
  content:"";position:absolute;top:6px;width:22px;height:3px;border-radius:999px;
  background:var(--c-brand);transform:scaleX(0);transition:transform .2s var(--ease);
}
.tab-item.is-active{color:var(--c-brand);font-weight:600}
.tab-item.is-active::before{transform:scaleX(1)}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:70;background:rgba(14,31,60,.45);
  opacity:0;pointer-events:none;transition:opacity .22s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:88%;max-width:340px;background:var(--c-surface);
  border-radius:20px 0 0 20px;box-shadow:var(--sh-pop);
  padding:22px 20px calc(22px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;gap:6px;
  transform:translateX(102%);transition:transform .26s var(--ease);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-title{font-size:15px;font-weight:700}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;color:var(--c-text-2);font-size:18px;
}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;font-size:17px;font-weight:500;color:var(--c-text);
  border-bottom:1px solid var(--c-divider);
}
.drawer-link svg{width:16px;height:16px;color:var(--c-text-weak)}
.drawer-link.is-active{color:var(--c-brand);font-weight:600}
.drawer-cta{margin-top:auto;padding-top:20px}

/* ---------- Responsive ---------- */
@media (min-width:520px){
  .container{padding:0 24px}
  .page-head-copy h1{font-size:32px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:768px){
  :root{--sp-section:72px}
  .container{padding:0 28px}
  .page-head-card{padding:34px 32px}
  .page-head-copy h1{font-size:38px}
  .page-head-copy .btn-group .btn{width:auto}
  .cta-block{padding:40px 36px}
  .cta-block .btn-group .btn{width:auto}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}
  .content-card h3{font-size:16.5px}
}
@media (min-width:1024px){
  :root{--header-h:76px;--sp-section:96px}
  body{padding-bottom:0;font-size:16px}
  .container{padding:0 32px}
  .main-nav{display:flex}
  .header-actions .btn{display:inline-flex}
  .nav-toggle{display:none}
  .mobile-tabbar{display:none}
  .brand-mark{width:40px;height:40px;border-radius:12px}
  .brand-mark svg{width:22px;height:22px}
  .brand-text{font-size:20px}
  .page-head{padding:32px 0 var(--sp-section)}
  .page-head-card{grid-template-columns:8fr 4fr;align-items:center;gap:40px;padding:44px 44px}
  .page-head-copy h1{font-size:46px}
  .page-head-copy .lead{font-size:16.5px}
  .head-stats{max-width:460px}
  .cat-tabs{overflow:visible;flex-wrap:wrap}
  .flow-list{gap:64px}
  .flow-item{grid-template-columns:1fr 1fr;align-items:center;gap:44px;padding:32px}
  .flow-item:nth-child(even) .flow-figure{order:2}
  .flow-item:nth-child(even) .flow-copy{order:1}
  .flow-copy h2{font-size:26px}
  .flow-copy .p{font-size:15.5px}
  .content-card h3{font-size:17px}
  .card-grid{grid-template-columns:repeat(3,1fr);gap:24px}
  .cta-block{grid-template-columns:1fr 260px;align-items:center;padding:48px 44px;gap:40px}
  .cta-block h2{font-size:30px}
  .faq-q{font-size:16px;min-height:64px;padding:16px 22px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px}
  .site-footer{padding:64px 0 28px}
}
@media (min-width:1280px){
  :root{--sp-section:104px}
  .section-head h2{font-size:32px}
  .page-head-copy h1{font-size:48px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category2 */
:root{
  --c-brand:#1B5FD9;
  --c-brand-deep:#123F96;
  --c-brand-soft:#E8F0FE;
  --c-accent:#FF6B3D;
  --c-accent-soft:#FFEDE6;
  --c-mint:#1FA98F;
  --c-mint-soft:#E4F6F1;
  --c-warn:#F0A020;
  --c-danger:#E5484D;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#F0F4FB;
  --c-line:#E3E9F3;
  --c-line-soft:#EEF2F8;
  --c-text:#18222F;
  --c-text-mid:#5A6B85;
  --c-text-weak:#8B9AB1;
  --c-invert:#0E1F3C;
  --r-btn:12px;
  --r-card:16px;
  --r-lg:20px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-card:0 8px 24px rgba(16,35,70,.08);
  --sh-card-hover:0 16px 40px rgba(16,35,70,.13);
  --sh-nav:0 6px 20px rgba(16,35,70,.07);
  --sh-pop:0 24px 60px rgba(16,35,70,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --header-h:76px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  padding-bottom:76px;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;border-radius:12px;background:#EEF3FA;}
a{color:var(--c-brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-brand-deep);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(27,95,217,.35);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* 容器 */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}

/* 头部导航 */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:120;
  height:var(--header-h);
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--c-line-soft);
  transition:height .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{
  height:64px;
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--c-line);
  box-shadow:var(--sh-nav);
}
.header-inner{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--c-text);
  font-weight:700;
  flex:0 0 auto;
}
.brand:hover{color:var(--c-brand);}
.brand-mark{
  width:40px;height:40px;
  border-radius:12px;
  background:linear-gradient(140deg,var(--c-brand),var(--c-brand-deep));
  color:#fff;
  display:grid;place-items:center;
  flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{
  font-size:20px;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 14px;
  font-size:15px;
  font-weight:500;
  color:var(--c-text-mid);
  border-radius:10px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:4px;
  width:0;height:3px;
  border-radius:var(--r-pill);
  background:var(--c-brand);
  transform:translateX(-50%);
  transition:width .2s var(--ease);
}
.nav-link:hover{color:var(--c-brand);}
.nav-link:hover::after{width:20px;}
.nav-link.is-active{color:var(--c-brand);font-weight:600;}
.nav-link.is-active::after{width:24px;}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  color:var(--c-text);
  place-items:center;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:var(--c-brand-soft);border-color:#CFDDF7;}

/* 移动抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:200;
  visibility:hidden;
  pointer-events:none;
}
.drawer-mask{
  position:absolute;inset:0;
  background:rgba(14,31,60,.45);
  opacity:0;
  transition:opacity .24s var(--ease);
}
.drawer-panel{
  position:absolute;
  top:0;right:0;
  width:88%;
  max-width:380px;
  height:100%;
  background:var(--c-surface);
  border-radius:20px 0 0 20px;
  box-shadow:var(--sh-pop);
  padding:20px 20px calc(24px + env(safe-area-inset-bottom));
  display:flex;
  flex-direction:column;
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{visibility:visible;pointer-events:auto;}
.drawer.is-open .drawer-mask{opacity:1;}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:14px;
  border-bottom:1px solid var(--c-line-soft);
}
.drawer-title{font-size:15px;font-weight:600;color:var(--c-text-mid);}
.drawer-close{
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--c-line);
  display:grid;place-items:center;
  color:var(--c-text-mid);
}
.drawer-close:hover{background:var(--c-surface-2);}
.drawer-nav{margin-top:8px;flex:1;}
.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:56px;
  font-size:17px;
  font-weight:500;
  color:var(--c-text);
  border-bottom:1px solid var(--c-line-soft);
}
.drawer-link:hover{color:var(--c-brand);}
.drawer-link.is-active{color:var(--c-brand);font-weight:600;}
.drawer-link svg{width:16px;height:16px;color:var(--c-text-weak);}
.drawer-cta{margin-top:20px;display:grid;gap:12px;}

/* 底部 Tab */
.bottom-tab{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:110;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.97);
  border-top:1px solid var(--c-line);
  box-shadow:0 -6px 20px rgba(16,35,70,.07);
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.tab-item{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:2px;
  min-width:48px;
  min-height:48px;
  font-size:11px;
  line-height:1.3;
  color:var(--c-text-weak);
}
.tab-item svg{width:22px;height:22px;}
.tab-item::before{
  content:"";
  position:absolute;
  top:4px;
  width:0;height:3px;
  border-radius:var(--r-pill);
  background:var(--c-brand);
  transition:width .2s var(--ease);
}
.tab-item.is-active{color:var(--c-brand);font-weight:600;}
.tab-item.is-active::before{width:20px;}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),transform .16s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--c-brand);
  color:#fff;
  box-shadow:0 8px 20px rgba(27,95,217,.24);
}
.btn-primary:hover{background:var(--c-brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(18,63,150,.28);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px rgba(18,63,150,.24);}
.btn-outline{
  background:var(--c-surface);
  border-color:#C9D8F4;
  color:var(--c-brand);
}
.btn-outline:hover{background:rgba(27,95,217,.06);border-color:var(--c-brand);color:var(--c-brand-deep);}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.45);
  color:#fff;
}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}
.btn-white{
  background:#fff;
  color:var(--c-brand);
}
.btn-white:hover{background:#EAF1FE;color:var(--c-brand-deep);transform:translateY(-1px);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-brand);
}
.text-link svg{width:15px;height:15px;transition:transform .2s var(--ease);}
.text-link:hover{color:var(--c-brand-deep);text-decoration:underline;text-underline-offset:4px;}
.text-link:hover svg{transform:translateX(3px);}

/* 徽章标签 */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 10px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  background:var(--c-brand-soft);
  color:var(--c-brand);
  line-height:1;
}
.badge-accent{background:var(--c-accent-soft);color:#D8481D;}
.badge-mint{background:var(--c-mint-soft);color:#13826E;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-brand);
  text-transform:uppercase;
}
.eyebrow .dot{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--c-accent);
  box-shadow:0 0 0 4px var(--c-accent-soft);
}

/* 面包屑 */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-text-weak);
  padding-top:calc(var(--header-h) + 22px);
  margin-bottom:16px;
}
.breadcrumb a{color:var(--c-text-weak);}
.breadcrumb a:hover{color:var(--c-brand);}
.breadcrumb .sep{color:#C3CEDF;}
.breadcrumb .current{color:var(--c-text-mid);}

/* 分类头卡 */
.cat-hero-card{
  display:grid;
  grid-template-columns:1fr;
  gap:28px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-xl);
  box-shadow:var(--sh-card);
  padding:26px 22px;
}
.cat-hero-text h1{
  font-size:28px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.02em;
  margin:14px 0 12px;
}
.hero-lead{
  font-size:15.5px;
  line-height:1.9;
  color:var(--c-text-mid);
  max-width:560px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:24px;
}
.cat-hero-fig{
  margin:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--c-surface-2);
}
.cat-hero-fig img{
  width:100%;
  aspect-ratio:3/4;
  object-fit:cover;
  border-radius:var(--r-lg);
}
.hero-facts{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid var(--c-line-soft);
}
.fact-num{
  display:block;
  font-size:24px;
  font-weight:700;
  color:var(--c-brand);
  line-height:1.2;
}
.fact-label{font-size:12px;color:var(--c-text-weak);}

/* 分类切换条 */
.switch-bar{
  display:flex;
  gap:10px;
  margin-top:22px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:4px 0 10px;
  -webkit-overflow-scrolling:touch;
}
.switch-bar::-webkit-scrollbar{height:4px;}
.switch-bar::-webkit-scrollbar-thumb{background:#D8E1F0;border-radius:99px;}
.switch-pill{
  flex:0 0 auto;
  scroll-snap-align:start;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:var(--c-surface);
  font-size:14px;
  font-weight:500;
  color:var(--c-text-mid);
}
.switch-pill:hover{border-color:#C9D8F4;color:var(--c-brand);}
.switch-pill.is-active{
  background:var(--c-brand);
  border-color:var(--c-brand);
  color:#fff;
  font-weight:600;
  box-shadow:0 8px 18px rgba(27,95,217,.22);
}

/* 板块 */
.section{padding:52px 0;}
.section-alt{background:var(--c-surface);}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:14px;
  margin-bottom:30px;
}
.section-head h2{
  font-size:22px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.01em;
  display:flex;
  align-items:center;
  gap:12px;
}
.section-head h2::before{
  content:"";
  width:4px;height:20px;
  border-radius:3px;
  background:var(--c-brand);
  flex:0 0 auto;
}
.section-sub{
  font-size:15px;
  color:var(--c-text-mid);
  margin-top:10px;
  max-width:720px;
}

/* 时间轴步骤 */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";
  position:absolute;
  top:6px;bottom:10px;
  left:12px;
  width:2px;
  background:linear-gradient(180deg,#CFDDF7,#E9EFFA);
}
.tl-item{
  position:relative;
  padding:0 0 40px 48px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;
  top:4px;left:0;
  width:26px;height:26px;
  border-radius:50%;
  background:var(--c-brand);
  border:4px solid #fff;
  box-shadow:0 0 0 2px #D7E2F7;
  display:grid;
  place-items:center;
  color:#fff;
  font-size:10px;
  font-weight:700;
}
.tl-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:20px;
  transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.tl-card:hover{
  box-shadow:var(--sh-card-hover);
  transform:translateY(-4px);
  border-color:#CFDDF7;
}
.tl-step{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--c-accent);
  margin-bottom:8px;
}
.tl-card h3{
  font-size:18px;
  font-weight:600;
  line-height:1.45;
  margin-bottom:10px;
}
.tl-card p{
  font-size:15px;
  line-height:1.9;
  color:var(--c-text-mid);
}
.tl-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:14px;
}

/* 对比表 */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-surface);
  box-shadow:var(--sh-card);
}
.compare-table{
  width:100%;
  min-width:640px;
  border-collapse:collapse;
  font-size:15px;
}
.compare-table th,
.compare-table td{
  padding:14px 16px;
  text-align:left;
  border-bottom:1px solid var(--c-line-soft);
  vertical-align:top;
}
.compare-table thead th{
  background:var(--c-surface-2);
  font-size:14px;
  font-weight:600;
  color:var(--c-text-mid);
  white-space:nowrap;
}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table tbody tr:hover{background:#FAFCFF;}
.compare-table td:first-child{font-weight:600;color:var(--c-text);}
.compare-table td{color:var(--c-text-mid);}

/* 要点列表 */
.point-list{display:grid;gap:12px;}
.point-list li{
  display:flex;
  gap:10px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-mid);
}
.point-list li svg{
  flex:0 0 auto;
  width:18px;height:18px;
  margin-top:6px;
  color:var(--c-mint);
}
.panel{
  background:var(--c-surface-2);
  border-radius:var(--r-card);
  padding:24px 22px;
  border:1px solid var(--c-line);
}
.panel h3{font-size:17px;font-weight:600;margin-bottom:14px;}

/* 内容卡片 */
.card-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
  transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.post-card:hover{
  box-shadow:var(--sh-card-hover);
  transform:translateY(-4px);
  border-color:#CFDDF7;
}
.post-thumb{
  position:relative;
  overflow:hidden;
  background:#EEF3FA;
}
.post-thumb img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:0;
  transition:transform .3s var(--ease);
}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-thumb .badge{
  position:absolute;
  top:12px;left:12px;
  background:rgba(255,255,255,.94);
  color:var(--c-brand);
}
.post-body{
  padding:18px 20px 20px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.post-body h3{
  font-size:16px;
  font-weight:600;
  line-height:1.55;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-body h3 a{color:var(--c-text);}
.post-body h3 a:hover{color:var(--c-brand);}
.post-body p{
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-mid);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-time{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  color:var(--c-text-weak);
}
.post-time svg{width:14px;height:14px;}

/* FAQ */
.faq{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--c-line-soft);transition:box-shadow .2s var(--ease);}
.faq-item:last-child{border-bottom:none;}
.faq-item.is-open{box-shadow:inset 4px 0 0 var(--c-brand);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:60px;
  padding:16px 20px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  line-height:1.6;
}
.faq-q:hover{color:var(--c-brand);}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:20px;height:20px;
  color:var(--c-brand);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  background:currentColor;
  border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%);}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a p{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.9;
  color:var(--c-text-mid);
}

/* CTA 区块 */
.cta-block{padding:52px 0;}
.cta-inner{
  background:var(--c-invert);
  border-radius:var(--r-xl);
  padding:28px 22px;
  display:grid;
  grid-template-columns:1fr;
  gap:26px;
  color:#E7EEF9;
}
.cta-inner h2{
  font-size:22px;
  line-height:1.4;
  font-weight:700;
  color:#fff;
}
.cta-inner p{
  font-size:15px;
  line-height:1.9;
  color:#B9C8E0;
  margin-top:12px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.cta-note{
  font-size:12px;
  color:#8FA6C7;
  margin-top:14px;
}
.cta-figure{
  margin:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  max-width:220px;
}
.cta-figure img{
  width:100%;
  aspect-ratio:3/4;
  object-fit:cover;
  border-radius:var(--r-lg);
}

/* 页脚 */
.site-footer{
  background:var(--c-invert);
  color:#E7EEF9;
  padding:60px 0 30px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff;}
.footer-brand .brand-text{color:#fff;font-size:18px;}
.footer-desc{
  font-size:14px;
  line-height:1.9;
  color:#B9C8E0;
  max-width:360px;
}
.footer-social{
  display:flex;
  gap:10px;
  margin-top:18px;
}
.footer-social a{
  width:40px;height:40px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
  display:grid;place-items:center;
  color:#DCE6F6;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.footer-social a:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.4);color:#fff;}
.footer-social svg{width:18px;height:18px;}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{
  font-size:14px;
  color:#B9C8E0;
}
.footer-col a:hover{
  color:#fff;
  text-decoration:underline;
  text-decoration-color:rgba(255,255,255,.4);
  text-underline-offset:4px;
}
.footer-sub p{font-size:14px;color:#B9C8E0;line-height:1.9;}
.subscribe-form{
  display:flex;
  gap:10px;
  margin-top:16px;
}
.subscribe-form input{
  flex:1;
  min-width:0;
  height:46px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.08);
  color:#fff;
  padding:0 14px;
  font-size:16px;
}
.subscribe-form input::placeholder{color:#8FA6C7;}
.subscribe-form input:focus{
  outline:none;
  border-color:var(--c-brand);
  box-shadow:0 0 0 3px rgba(27,95,217,.35);
}
.form-note{font-size:12px;color:#8FA6C7;margin-top:12px;}
.form-success{
  display:none;
  margin-top:14px;
  padding:12px 14px;
  border-radius:10px;
  background:rgba(31,169,143,.16);
  border-left:3px solid var(--c-mint);
  font-size:13px;
  color:#C9F2E8;
}
.form-success.is-visible{display:block;}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:12px;
  color:#8FA6C7;
}

/* 平板 */
@media (min-width:480px){
  .container{padding:0 24px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .hero-facts{gap:20px;}
}
@media (min-width:720px){
  .section{padding:64px 0;}
  .cta-block{padding:64px 0;}
  .cat-hero-card{padding:32px 30px;}
  .section-head h2{font-size:25px;}
  .cat-hero-text h1{font-size:34px;}
  .cta-inner{
    grid-template-columns:1fr auto;
    align-items:center;
    padding:40px 36px;
  }
  .cta-inner h2{font-size:26px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px;}
}

/* 桌面 */
@media (min-width:1024px){
  body{padding-bottom:0;}
  .container{padding:0 32px;}
  .bottom-tab{display:none;}
  .nav-toggle{display:none;}
  .drawer{display:none;}
  .section{padding:92px 0;}
  .cta-block{padding:92px 0;}
  .cat-hero-card{
    grid-template-columns:minmax(0,8fr) minmax(0,4fr);
    align-items:center;
    padding:40px 40px;
    gap:40px;
  }
  .cat-hero-text h1{font-size:46px;line-height:1.15;}
  .hero-lead{font-size:16.5px;}
  .breadcrumb{padding-top:calc(var(--header-h) + 30px);}
  .section-head h2{font-size:30px;}
  .card-grid{grid-template-columns:repeat(3,1fr);}
  .timeline::before{left:50%;transform:translateX(-1px);}
  .tl-item{width:50%;padding:0 48px 56px 0;}
  .tl-item:nth-child(even){margin-left:50%;padding:0 0 56px 48px;}
  .tl-node{left:auto;right:-13px;}
  .tl-item:nth-child(even) .tl-node{left:-13px;right:auto;}
  .cta-inner{padding:56px;grid-template-columns:minmax(0,1fr) 220px;}
  .cta-inner h2{font-size:30px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;}
  .site-footer{padding:70px 0 34px;}
}
@media (min-width:1280px){
  .section{padding:100px 0;}
  .cta-block{padding:100px 0;}
  .card-grid{grid-template-columns:repeat(3,1fr);}
  .cat-hero-text h1{font-size:50px;}
}
@media (max-width:1023px){
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom));}
  .main-nav{display:none;}
  .nav-toggle{display:grid;}
  .brand-text{font-size:17px;}
  .section{padding:52px 0;}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .cta-figure{max-width:100%;}
  .hero-facts{grid-template-columns:repeat(3,1fr);gap:10px;}
  .fact-num{font-size:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --c-brand:#1B5FD9;
  --c-brand-deep:#123F96;
  --c-brand-soft:#E8F0FE;
  --c-accent:#FF6B3D;
  --c-accent-soft:#FFEDE6;
  --c-mint:#1FA98F;
  --c-mint-soft:#E4F6F1;
  --c-warn:#F0A020;
  --c-danger:#E5484D;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#F0F4FB;
  --c-line:#E3E9F3;
  --c-divider:#EEF2F8;
  --c-text:#18222F;
  --c-text-2:#5A6B85;
  --c-text-weak:#8B9AB1;
  --c-invert:#0E1F3C;
  --c-invert-text:#E7EEF9;
  --r-card:16px;
  --r-hero:20px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-card:0 8px 24px rgba(16,35,70,.08);
  --sh-card-hover:0 16px 40px rgba(16,35,70,.13);
  --sh-nav:0 6px 20px rgba(16,35,70,.07);
  --sp-section:64px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:15px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  padding-bottom:76px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{line-height:1.35;font-weight:700;letter-spacing:-0.01em}
:focus-visible{outline:3px solid rgba(27,95,217,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s var(--ease),background .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-nav)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:76px;transition:height .2s var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-brand);color:#fff;flex-shrink:0;
}
.brand-mark svg{width:22px;height:22px}
.brand-text{font-size:20px;font-weight:700;color:var(--c-text);letter-spacing:-0.01em}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;font-size:15px;font-weight:500;
  color:var(--c-text-2);border-radius:8px;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-6px;transform:translateX(-50%) scaleX(0);
  width:22px;height:3px;border-radius:3px;background:var(--c-brand);transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--c-brand)}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-link.is-active{color:var(--c-brand);font-weight:600}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  padding:0 22px;height:44px;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),
             transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:0 6px 16px rgba(27,95,217,.22)}
.btn-primary:hover{background:var(--c-brand-deep);transform:translateY(-1px);box-shadow:0 10px 22px rgba(27,95,217,.28)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 10px rgba(27,95,217,.2)}
.btn-ghost{background:#fff;color:var(--c-brand);border-color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-brand-soft)}
.btn-ghost:active{transform:translateY(1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-sm{height:40px;font-size:14px;padding:0 18px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-brand);font-weight:600;font-size:15px;
  border:0;background:none;padding:4px 0;
}
.btn-link svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.btn-link:hover{text-decoration:underline;text-underline-offset:4px}
.btn-link:hover svg{transform:translateX(3px)}

.hamburger{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-text);align-items:center;justify-content:center;
}
.hamburger svg{width:20px;height:20px}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,31,60,.45);opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:88%;max-width:360px;background:#fff;
  border-radius:20px 0 0 20px;z-index:100;transform:translateX(102%);
  transition:transform .26s var(--ease);display:flex;flex-direction:column;padding:20px;
  box-shadow:-12px 0 40px rgba(16,35,70,.18);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;border-bottom:1px solid var(--c-divider)}
.drawer-title{font-size:16px;font-weight:700}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;display:flex;align-items:center;justify-content:center;color:var(--c-text-2)}
.drawer-close svg{width:20px;height:20px}
.drawer-list{margin-top:8px;flex:1}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:17px;font-weight:500;color:var(--c-text);line-height:56px;
  border-bottom:1px solid var(--c-divider);
}
.drawer-list a.is-active{color:var(--c-brand);font-weight:600}
.drawer-list a svg{width:18px;height:18px;color:var(--c-text-weak)}
.drawer-foot{padding-top:16px}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-text-weak);margin:28px 0 16px;
}
.breadcrumb a{color:var(--c-text-weak);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--c-brand)}
.breadcrumb .sep{color:#C3CEDF}
.breadcrumb .current{color:var(--c-text-2)}

/* ---------- Category hero ---------- */
.cat-hero{
  display:grid;grid-template-columns:1fr;gap:24px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-hero);
  padding:24px;box-shadow:var(--sh-card);
}
.cat-hero-copy{max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--c-brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow-dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent)}
.cat-hero h1{font-size:28px;line-height:1.22;margin-bottom:14px}
.cat-hero .lead{font-size:15px;color:var(--c-text-2);margin-bottom:24px;max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-media{position:relative;border-radius:var(--r-hero);overflow:hidden;aspect-ratio:4/3;background:var(--c-surface-2)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media .media-tag{
  position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);color:var(--c-brand);
  font-size:12px;font-weight:600;padding:6px 12px;border-radius:var(--r-pill);
}
.hero-media .media-caption{
  position:absolute;left:0;right:0;bottom:0;padding:32px 16px 14px;color:#fff;font-size:13px;
  background:linear-gradient(180deg,rgba(14,31,60,0) 0%,rgba(14,31,60,.72) 100%);
}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
.hero-stat{background:var(--c-surface-2);border-radius:12px;padding:14px 12px}
.hero-stat b{display:block;font-size:24px;font-weight:700;color:var(--c-brand);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stat span{font-size:12px;color:var(--c-text-2)}

/* ---------- Category switch chips ---------- */
.switch-bar{
  display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;
  margin:24px 0 0;padding:4px 0 10px;-webkit-overflow-scrolling:touch;
}
.switch-bar::-webkit-scrollbar{height:0}
.chip{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-text-2);
  font-size:14px;font-weight:500;white-space:nowrap;transition:all .2s var(--ease);
}
.chip:hover{border-color:var(--c-brand);color:var(--c-brand)}
.chip.is-active{background:var(--c-brand);border-color:var(--c-brand);color:#fff;font-weight:600}

/* ---------- Sections ---------- */
.section{padding-top:var(--sp-section)}
.section-head{margin-bottom:28px;max-width:760px}
.section-head h2{font-size:22px;position:relative;padding-left:14px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:20px;border-radius:2px;background:var(--c-brand);
}
.section-head p{margin-top:12px;color:var(--c-text-2);font-size:15px}

/* ---------- Matrix cards ---------- */
.matrix-grid{display:grid;grid-template-columns:1fr;gap:16px}
.matrix-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--sh-card);display:flex;flex-direction:column;gap:12px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:var(--c-brand)}
.matrix-icon{
  width:40px;height:40px;border-radius:10px;background:var(--c-brand-soft);color:var(--c-brand);
  display:flex;align-items:center;justify-content:center;
}
.matrix-icon svg{width:24px;height:24px}
.matrix-card h3{font-size:17px;font-weight:600}
.matrix-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.8}
.matrix-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:6px}
.matrix-foot .tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--c-accent-soft);color:#C6411B;font-size:12px;font-weight:600;
}
.matrix-foot .arrow{color:var(--c-brand);transition:transform .2s var(--ease)}
.matrix-card:hover .matrix-foot .arrow{transform:translateX(4px)}

/* ---------- Compare panel ---------- */
.compare{
  display:grid;grid-template-columns:1fr;gap:16px;
}
.compare-col{border-radius:var(--r-card);padding:22px 20px;border:1px solid var(--c-line)}
.compare-col.yes{background:var(--c-surface-2)}
.compare-col.no{background:var(--c-surface);box-shadow:var(--sh-card)}
.compare-col h3{font-size:16px;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.compare-col h3 .dot{width:10px;height:10px;border-radius:50%}
.compare-col.yes h3 .dot{background:var(--c-mint)}
.compare-col.no h3 .dot{background:var(--c-warn)}
.compare-col li{
  display:flex;gap:10px;align-items:flex-start;padding:12px 0;border-top:1px solid var(--c-divider);
  font-size:14.5px;color:var(--c-text-2);line-height:1.8;
}
.compare-col li:first-of-type{border-top:0}
.compare-col li svg{width:18px;height:18px;flex:0 0 18px;margin-top:5px}
.compare-col.yes li svg{color:var(--c-mint)}
.compare-col.no li svg{color:var(--c-warn)}

/* ---------- FAQ ---------- */
.faq-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--c-divider)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;text-align:left;padding:18px 20px;
  font-size:16px;font-weight:600;color:var(--c-text);line-height:1.6;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.faq-q:hover{color:var(--c-brand);background:#FBFCFE}
.faq-q .mark{
  flex:0 0 20px;width:20px;height:20px;color:var(--c-brand);display:flex;align-items:center;justify-content:center;
  transition:transform .18s var(--ease);
}
.faq-q .mark svg{width:20px;height:20px}
.faq-item.is-open .faq-q .mark{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .26s var(--ease);
  padding:0 20px;
}
.faq-item.is-open .faq-a{padding-bottom:20px}
.faq-a p{font-size:15px;color:var(--c-text-2);line-height:1.9}
.faq-item.is-open{border-left:4px solid var(--c-brand)}
.faq-more{margin-top:20px}

/* ---------- Related cards ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:16px}
.content-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--sh-card);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:var(--c-brand)}
.content-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-2)}
.content-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.content-card:hover .thumb img{transform:scale(1.03)}
.content-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--c-brand-soft);color:var(--c-brand);font-size:12px;font-weight:600;align-self:flex-start;
}
.badge.accent{background:var(--c-accent-soft);color:#C6411B}
.badge.mint{background:var(--c-mint-soft);color:#127A66}
.content-card h3{
  font-size:16px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.content-card p{
  font-size:14.5px;color:var(--c-text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta{
  margin-top:auto;display:flex;align-items:center;gap:8px;font-size:12px;color:var(--c-text-weak);
  padding-top:8px;font-variant-numeric:tabular-nums;
}
.meta svg{width:14px;height:14px}

/* ---------- CTA ---------- */
.cta-block{
  margin-top:var(--sp-section);
  background:var(--c-invert);border-radius:24px;color:var(--c-invert-text);
  padding:28px 20px;display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
}
.cta-block h2{font-size:22px;color:#fff;margin-bottom:12px}
.cta-block p{font-size:15px;color:#B9C8E0;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.cta-note{margin-top:16px;font-size:12px;color:#8FA6C7}
.cta-media{border-radius:16px;overflow:hidden;aspect-ratio:3/2;background:rgba(255,255,255,.06)}
.cta-media img{width:100%;height:100%;object-fit:cover}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-invert);color:var(--c-invert-text);margin-top:var(--sp-section);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:var(--c-brand)}
.footer-brand .brand-text{color:#fff;font-size:18px}
.footer-desc{font-size:14px;color:#B9C8E0;line-height:1.9;max-width:38ch}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);color:#fff;transition:background .2s var(--ease),transform .2s var(--ease);
}
.footer-social a:hover{background:var(--c-brand);transform:translateY(-2px)}
.footer-social svg{width:18px;height:18px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:#B9C8E0;transition:color .2s var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-decoration-color:rgba(255,255,255,.4);text-underline-offset:4px}
.footer-sub p{font-size:14px;color:#B9C8E0;margin-bottom:16px}
.subscribe{display:flex;flex-direction:column;gap:10px}
.subscribe input{
  height:46px;border-radius:12px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.08);color:#fff;padding:0 14px;font-size:16px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.subscribe input::placeholder{color:#8299BC}
.subscribe input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(27,95,217,.4)}
.subscribe .btn{width:100%}
.subscribe-note{font-size:12px;color:#8FA6C7;margin-top:12px;line-height:1.7}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;flex-direction:column;gap:10px;font-size:12px;color:#8FA6C7;
}
.footer-bottom .right{display:flex;flex-wrap:wrap;gap:14px}
.footer-bottom a{color:#8FA6C7}
.footer-bottom a:hover{color:#fff}

/* ---------- Bottom tab (mobile) ---------- */
.tab-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:grid;grid-template-columns:repeat(4,1fr);
  background:rgba(255,255,255,.97);backdrop-filter:blur(10px);
  border-top:1px solid var(--c-line);
  box-shadow:0 -6px 20px rgba(16,35,70,.07);
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{
  min-height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--c-text-weak);position:relative;
}
.tab-item svg{width:22px;height:22px}
.tab-item::before{
  content:"";position:absolute;top:6px;width:18px;height:3px;border-radius:3px;background:transparent;
  transition:background .2s var(--ease);
}
.tab-item.is-active{color:var(--c-brand);font-weight:600}
.tab-item.is-active::before{background:var(--c-brand)}

/* ---------- Responsive ---------- */
@media (min-width:520px){
  .matrix-grid{grid-template-columns:repeat(2,1fr)}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .compare{grid-template-columns:1fr 1fr}
}
@media (min-width:768px){
  body{font-size:16px}
  .container{padding:0 28px}
  .cat-hero{padding:32px}
  .cat-hero h1{font-size:36px}
  .section-head h2{font-size:26px}
  .matrix-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .card-grid{grid-template-columns:repeat(3,1fr);gap:20px}
  .cta-block{padding:40px 32px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}
  .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}
  .subscribe{flex-direction:row}
  .subscribe input{flex:1}
  .subscribe .btn{width:auto;flex:0 0 auto}
}
@media (min-width:1024px){
  body{padding-bottom:0}
  .tab-bar{display:none}
  .container{padding:0 32px}
  :root{--sp-section:88px}
  .hamburger{display:none}
  .cat-hero{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:36px;padding:40px}
  .cat-hero h1{font-size:44px}
  .matrix-grid{grid-template-columns:repeat(3,1fr);gap:24px}
  .hero-media{aspect-ratio:3/4;height:100%}
  .cta-block{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);padding:56px;gap:40px}
  .cta-block h2{font-size:32px}
  .section-head h2{font-size:32px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:56px}
  .site-footer{padding-top:64px}
}
@media (min-width:1280px){
  :root{--sp-section:104px}
  .cat-hero h1{font-size:48px}
}
@media (max-width:1023px){
  .main-nav,.header-actions .header-cta{display:none}
  .hamburger{display:flex}
  .hero-media{max-height:40vh}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
}