/* roulang page: index */
:root{
  --c-primary:#1B6FA8;
  --c-primary-600:#155C8C;
  --c-primary-50:#EAF3FA;
  --c-accent:#E98B2A;
  --c-accent-50:#FDF3E6;
  --c-teal:#2E9E8F;
  --c-ink:#16232E;
  --c-ink-2:#4A5A6A;
  --c-ink-3:#7C8B99;
  --c-line:#E3EAF1;
  --c-bg:#F6F9FC;
  --c-surface:#FFFFFF;
  --c-footer:#0F2231;
  --c-error:#C4553F;
  --c-success:#2E9E8F;
  --r-card:14px;
  --r-img:20px;
  --r-btn:10px;
  --shadow:0 1px 2px rgba(16,42,67,.06),0 6px 18px rgba(16,42,67,.06);
  --shadow-hover:0 10px 28px rgba(16,42,67,.12);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:600;line-height:1.35}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,text-decoration-color .18s ease}
a:hover{color:var(--c-primary-600);text-decoration:underline;text-underline-offset:3px}
button,input,textarea,select{font:inherit;color:inherit;margin:0}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:92px 0}
.section--tight{padding:76px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:30px}
.section-head p{margin-top:10px;font-size:16px;color:var(--c-ink-2);max-width:620px}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--c-primary);
  background:var(--c-primary-50);
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:18px;
}
.linkmore{display:inline-flex;align-items:center;gap:8px;font-size:15px;white-space:nowrap}
.linkmore svg{transition:transform .2s ease}
.linkmore:hover svg{transform:translateX(4px)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--c-surface);transition:box-shadow .22s ease}
.site-header.is-scrolled{box-shadow:0 6px 16px rgba(16,42,67,.08)}
.brandbar{border-bottom:1px solid var(--c-line);background:var(--c-surface)}
.brandbar__inner{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:600;font-size:18px;letter-spacing:.01em}
.logo:hover{text-decoration:none;color:var(--c-ink)}
.logo__mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;
}
.logo__text small{display:block;font-size:11px;font-weight:400;color:var(--c-ink-3);letter-spacing:.06em;line-height:1.2}
.brandbar__right{margin-left:auto;display:flex;align-items:center;gap:22px}
.searchbox{display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;border:1px solid var(--c-line);border-radius:999px;background:var(--c-bg);min-width:196px}
.searchbox svg{flex:0 0 auto;color:var(--c-ink-3)}
.searchbox input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--c-ink)}
.searchbox input::placeholder{color:var(--c-ink-3)}
.hotline{font-size:14px;color:var(--c-ink-2);white-space:nowrap}
.hotline b{color:var(--c-ink);font-weight:600}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;transition:all .18s ease;
}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--c-primary);color:#fff}
.btn--primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px)}
.btn--ghost{background:#fff;color:var(--c-primary);border-color:rgba(27,111,168,.35)}
.btn--ghost:hover{background:var(--c-primary-50);color:var(--c-primary-600)}
.btn--accent{background:var(--c-accent);color:var(--c-ink)}
.btn--accent:hover{background:#d97f21;color:var(--c-ink);transform:translateY(-1px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled]{opacity:.45;pointer-events:none}
.burger{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;align-items:center;justify-content:center}
.burger span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink)}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.channelbar{background:var(--c-bg);border-bottom:1px solid var(--c-line)}
.channelbar__inner{display:flex;align-items:center;gap:28px;height:48px;overflow-x:auto}
.channelbar__inner::-webkit-scrollbar{display:none}
.channel{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);white-space:nowrap;padding:13px 0;line-height:1.2}
.channel:hover{color:var(--c-primary);text-decoration:none}
.channel.is-active{color:var(--c-primary)}
.channel.is-active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px;background:var(--c-primary)}
.drawer-mask{position:fixed;inset:0;background:rgba(22,35,46,.6);opacity:0;visibility:hidden;transition:.24s;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:296px;max-width:86vw;background:#fff;z-index:95;
  transform:translateX(102%);transition:transform .26s ease;padding:24px 22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer__head strong{font-size:16px;color:var(--c-ink)}
.drawer__close{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;font-size:20px;color:var(--c-ink-2)}
.drawer__list{display:flex;flex-direction:column;gap:2px}
.drawer__list a{padding:12px 6px;font-size:15px;color:var(--c-ink-2);border-bottom:1px solid var(--c-line)}
.drawer__list a:hover{color:var(--c-primary);text-decoration:none}
.drawer__cta{margin-top:22px;display:flex;flex-direction:column;gap:12px}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--c-surface);overflow:hidden;padding:80px 0 88px}
.hero::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:rgba(27,111,168,.07);pointer-events:none;
}
.hero__grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero__text{max-width:600px}
.hero h1{font-size:46px;line-height:1.25;letter-spacing:-.01em}
.hero__sub{margin-top:20px;font-size:18px;line-height:1.75;color:var(--c-ink-2);max-width:520px}
.hero__cta{display:flex;align-items:center;gap:22px;margin-top:32px;flex-wrap:wrap}
.hero__metrics{display:flex;gap:44px;margin-top:44px;padding-top:28px;border-top:1px solid var(--c-line);flex-wrap:wrap}
.metric__num{font-size:28px;font-weight:600;color:var(--c-accent);line-height:1.2}
.metric__label{font-size:14px;color:var(--c-ink-3);margin-top:4px}
.hero__media{position:relative}
.hero__media img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--shadow)}
.hero__media::before{
  content:"";position:absolute;inset:18px -18px -18px 18px;border-radius:var(--r-img);
  background:rgba(27,111,168,.06);z-index:-1;
}
.hero__tag{
  position:absolute;left:20px;bottom:20px;background:rgba(255,255,255,.94);border-radius:12px;
  padding:12px 16px;box-shadow:var(--shadow);font-size:13px;color:var(--c-ink-2);
}
.hero__tag b{display:block;font-size:15px;color:var(--c-ink);margin-bottom:2px}

/* ---------- pain ---------- */
.pain{background:var(--c-bg)}
.pain__grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px;align-items:start}
.pain__lead h2{font-size:30px}
.pain__lead p{margin-top:16px;color:var(--c-ink-2);max-width:380px}
.pain__list{border-top:1px solid var(--c-line)}
.pain__row{display:flex;gap:18px;padding:22px 16px;border-bottom:1px solid var(--c-line);transition:background .18s ease}
.pain__row:hover{background:rgba(27,111,168,.04)}
.pain__idx{
  flex:0 0 30px;height:30px;border-radius:8px;background:var(--c-primary-50);color:var(--c-primary);
  font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center;margin-top:2px;
}
.pain__row h3{font-size:17px;font-weight:600}
.pain__row p{margin-top:6px;font-size:15px;color:var(--c-ink-2)}

/* ---------- solution ---------- */
.solution{background:var(--c-surface)}
.sol-row{display:grid;grid-template-columns:45% 1fr;gap:56px;align-items:center;padding:44px 0}
.sol-row + .sol-row{border-top:1px solid var(--c-line)}
.sol-row--rev .sol-media{order:2}
.sol-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:16px;box-shadow:var(--shadow);transition:box-shadow .22s ease}
.sol-media:hover img{box-shadow:var(--shadow-hover)}
.sol-body h3{font-size:22px}
.sol-body p{margin-top:14px;font-size:16px}
.sol-body .linkmore{margin-top:20px}

/* ---------- stats ---------- */
.stats{background:var(--c-primary-50)}
.stats__head{text-align:center;margin-bottom:44px}
.stats__head h2{font-size:30px}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{background:rgba(255,255,255,.72);border-radius:var(--r-card);padding:26px 22px;text-align:center;border:1px solid rgba(27,111,168,.12)}
.stat__num{font-size:44px;font-weight:600;color:var(--c-accent);line-height:1.1}
.stat__num span{font-size:20px;margin-left:2px}
.stat__label{margin-top:10px;font-size:14px;color:var(--c-ink-2)}

/* ---------- testimonial ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote{
  background:var(--c-surface);border-left:3px solid var(--c-accent);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:16px;
}
.quote__mark{font-size:30px;line-height:1;color:var(--c-primary);opacity:.35;font-weight:700}
.quote__text{font-size:15px;color:var(--c-ink-2);line-height:1.85}
.quote__who{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid var(--c-line)}
.quote__who img{width:44px;height:44px;border-radius:50%;object-fit:cover}
.quote__who b{display:block;font-size:15px;color:var(--c-ink);font-weight:600}
.quote__who small{font-size:13px;color:var(--c-ink-3)}

/* ---------- posts ---------- */
.posts{background:var(--c-bg)}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-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(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(27,111,168,.35);text-decoration:none}
.post-card__media{position:relative;background:rgba(27,111,168,.06)}
.post-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.post-card__cat{
  position:absolute;left:12px;top:12px;height:26px;display:inline-flex;align-items:center;
  padding:0 12px;border-radius:999px;background:rgba(234,243,250,.94);color:var(--c-primary);
  font-size:12px;font-weight:500;
}
.post-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-card__body h3{
  font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;transition:color .18s ease;
}
.post-card:hover .post-card__body h3{color:var(--c-primary)}
.post-card__body p{
  margin-top:10px;font-size:14px;color:var(--c-ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__foot{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-ink-3);
}
.post-card__foot .arrow{color:var(--c-primary);font-weight:500}
.empty-state{
  border:1px dashed var(--c-line);border-radius:var(--r-card);background:var(--c-surface);
  padding:52px 24px;text-align:center;color:var(--c-ink-3);font-size:14px;
}
.empty-state a{display:inline-block;margin-top:12px;font-size:14px}
.skeleton-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* ---------- faq ---------- */
.faq{background:var(--c-surface)}
.faq__wrap{max-width:860px;margin:0 auto;border-top:1px solid var(--c-line)}
.faq__item{border-bottom:1px solid var(--c-line)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;
  background:transparent;border:0;padding:22px 4px;font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color .18s ease;
}
.faq__q:hover{color:var(--c-primary)}
.faq__item.is-open .faq__q{color:var(--c-primary)}
.faq__icon{flex:0 0 auto;width:20px;height:20px;position:relative;transition:transform .22s ease}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq__icon::before{left:0;top:9px;width:20px;height:2px}
.faq__icon::after{left:9px;top:0;width:2px;height:20px}
.faq__item.is-open .faq__icon{transform:rotate(45deg)}
.faq__a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq__a p{padding:0 44px 24px 4px;font-size:15.5px;color:var(--c-ink-2);line-height:1.85}

/* ---------- cta ---------- */
.cta-band{background:var(--c-primary-50)}
.cta-band__inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.cta-band h2{font-size:30px}
.cta-band p{margin-top:14px;font-size:16px;color:var(--c-ink-2);max-width:440px}
.form-card{background:var(--c-surface);border-radius:16px;padding:26px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:14px;color:var(--c-ink-2)}
.field input,.field textarea,.field select{
  height:46px;border:1px solid var(--c-line);border-radius:var(--r-btn);padding:0 14px;background:#fff;
  font-size:15px;color:var(--c-ink);transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:88px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--c-ink-3)}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(27,111,168,.10);
}
.form-note{font-size:13px;color:var(--c-ink-3);margin-top:12px}
.form-ok{
  display:none;align-items:center;gap:8px;margin-top:14px;font-size:14px;color:var(--c-success);
}
.form-ok.is-visible{display:flex}

/* ---------- footer ---------- */
.site-footer{background:var(--c-footer);color:#D7E1E9;padding:64px 0 0;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:600;margin-bottom:16px}
.footer__brand .logo__mark{background:var(--c-primary)}
.footer p{font-size:14px;color:#8FA4B4;line-height:1.8;max-width:300px}
.footer h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px}
.footer li{margin-bottom:10px}
.footer a{font-size:14px;color:#8FA4B4}
.footer a:hover{color:#fff;text-decoration:underline}
.footer__bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.10);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA4B4;
}
.footer__bottom a{font-size:13px}

@media (max-width:1279px){
  .container{max-width:96%}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .hero{padding:60px 0 64px}
  .hero__grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:38px}
  .hero__media img{aspect-ratio:16/10}
  .pain__grid{grid-template-columns:1fr;gap:32px}
  .sol-row{grid-template-columns:1fr;gap:28px}
  .sol-row--rev .sol-media{order:0}
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .quotes{grid-template-columns:1fr}
  .post-grid,.skeleton-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band__inner{grid-template-columns:1fr;gap:32px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .brandbar__right .hotline,.brandbar__right .searchbox{display:none}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:46px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .section-head h2{font-size:24px}
  .hero{padding:44px 0 48px}
  .hero h1{font-size:30px}
  .hero__sub{font-size:16px}
  .hero__cta{gap:16px}
  .hero__cta .btn{width:100%}
  .hero__metrics{gap:28px;margin-top:32px}
  .metric__num{font-size:24px}
  .pain__lead h2,.stats__head h2,.cta-band h2{font-size:24px}
  .stats__grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .stat__num{font-size:32px}
  .post-grid,.skeleton-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .cta-band .btn,.form-card .btn{width:100%}
  .footer__grid{grid-template-columns:1fr 1fr}
  .footer__bottom{flex-direction:column;align-items:flex-start}
  .burger{display:flex}
  .brandbar__right{margin-left:auto}
  .channelbar{display:none}
  .brandbar__right .btn{display:none}
}
@media (max-width:519px){
  .footer__grid{grid-template-columns:1fr}
  .hero__metrics{flex-direction:column;gap:18px}
}
@media (max-width:375px){
  .container{padding:0 16px}
  .hero h1{font-size:27px}
}

/* roulang page: category1 */
:root{
  --c-primary:#1B6FA8;
  --c-primary-600:#155C8C;
  --c-primary-50:#EAF3FA;
  --c-accent:#E98B2A;
  --c-accent-50:#FDF3E6;
  --c-teal:#2E9E8F;
  --c-ink:#16232E;
  --c-ink-2:#4A5A6A;
  --c-ink-3:#7C8B99;
  --c-line:#E3EAF1;
  --c-bg:#F6F9FC;
  --c-surface:#FFFFFF;
  --c-footer:#0F2231;
  --c-error:#C4553F;
  --c-success:#2E9E8F;
  --r-card:14px;
  --r-img:20px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,42,67,.06), 0 6px 18px rgba(16,42,67,.06);
  --sh-2:0 10px 28px rgba(16,42,67,.12);
  --container:1200px;
  --sec:96px;
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:600;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-600);text-decoration:underline;text-underline-offset:3px;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:var(--sec) 0;}
.section--band{background:var(--c-primary-50);}
.section--tight{padding:64px 0;}
.eyebrow{
  display:inline-block;
  padding:5px 14px;
  border-radius:var(--r-pill);
  background:rgba(27,111,168,.09);
  color:var(--c-primary);
  font-size:12px;
  letter-spacing:.08em;
  font-weight:600;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .15s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn--primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:var(--c-surface);color:var(--c-primary);border-color:rgba(27,111,168,.35);}
.btn--ghost:hover{background:var(--c-primary-50);color:var(--c-primary-600);border-color:rgba(27,111,168,.55);}
.btn--accent{background:var(--c-accent);color:var(--c-ink);}
.btn--accent:hover{background:#d97c1c;color:var(--c-ink);transform:translateY(-1px);}
.btn--sm{height:38px;padding:0 18px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--c-primary);}
.link-arrow span{transition:transform .2s ease;}
.link-arrow:hover{text-decoration:none;color:var(--c-primary-600);}
.link-arrow:hover span{transform:translateX(4px);}
.pill{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:rgba(27,111,168,.08);
  color:var(--c-primary);
  font-size:12.5px;
  font-weight:600;
}
.pill--teal{background:rgba(46,158,143,.12);color:#1F7A6E;}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:0 6px 16px rgba(16,42,67,.08);}
.brandbar{border-bottom:1px solid var(--c-line);background:var(--c-surface);}
.brandbar__inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:24px;}
.logo{display:flex;align-items:center;gap:10px;color:var(--c-ink);}
.logo:hover{text-decoration:none;color:var(--c-ink);}
.logo__mark{
  width:36px;height:36px;flex:0 0 36px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;background:var(--c-primary);color:#fff;font-weight:700;font-size:18px;
}
.logo__text{font-size:18px;font-weight:600;line-height:1.2;display:flex;flex-direction:column;}
.logo__text small{font-size:11.5px;font-weight:400;color:var(--c-ink-3);letter-spacing:.04em;line-height:1.5;}
.brandbar__right{display:flex;align-items:center;gap:18px;}
.searchbox{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;min-width:210px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);background:var(--c-bg);
  color:var(--c-ink-3);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.searchbox:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(27,111,168,.10);}
.searchbox input{border:0;background:transparent;outline:none;width:100%;font-size:14px;}
.searchbox input::placeholder{color:var(--c-ink-3);}
.hotline{font-size:13.5px;color:var(--c-ink-3);white-space:nowrap;}
.hotline b{color:var(--c-ink);font-weight:600;}
.burger{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);align-items:center;justify-content:center;}
.burger span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.channelbar{background:var(--c-bg);border-bottom:1px solid var(--c-line);}
.channelbar__inner{display:flex;align-items:center;gap:28px;min-height:48px;overflow-x:auto;scrollbar-width:none;}
.channelbar__inner::-webkit-scrollbar{display:none;}
.channel{
  position:relative;
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  padding:12px 0;white-space:nowrap;
  transition:color .2s ease;
}
.channel:hover{color:var(--c-primary);text-decoration:none;}
.channel.is-active{color:var(--c-primary);font-weight:600;}
.channel.is-active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--c-primary);border-radius:2px;}

/* ============ drawer ============ */
.mask{position:fixed;inset:0;background:rgba(22,35,46,.6);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:70;}
.mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:320px;max-width:86vw;
  background:var(--c-surface);z-index:80;padding:24px 22px;
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;}
.drawer__close{width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);font-size:20px;color:var(--c-ink);line-height:1;}
.drawer__nav{display:flex;flex-direction:column;}
.drawer__nav a{padding:14px 0;border-bottom:1px solid var(--c-line);color:var(--c-ink-2);font-size:15.5px;font-weight:500;}
.drawer__nav a.is-active{color:var(--c-primary);font-weight:600;}
.drawer__contact{font-size:13.5px;color:var(--c-ink-3);line-height:1.9;}

/* ============ hero (分类页1) ============ */
.hero--band{background:var(--c-primary-50);padding:76px 0 72px;position:relative;overflow:hidden;}
.hero__inner{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,1fr);gap:56px;align-items:center;}
.hero__text{max-width:600px;}
.hero h1{font-size:38px;line-height:1.3;margin:18px 0 16px;letter-spacing:-.01em;}
.hero__lead{font-size:17px;line-height:1.85;color:var(--c-ink-2);max-width:560px;}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero__meta{display:flex;flex-wrap:wrap;gap:36px;margin-top:36px;padding-top:26px;border-top:1px solid rgba(27,111,168,.16);}
.hero__meta li{display:flex;flex-direction:column;gap:2px;}
.hero__meta b{font-size:22px;color:var(--c-accent);font-weight:600;letter-spacing:.01em;}
.hero__meta span{font-size:13.5px;color:var(--c-ink-3);}
.hero__media img{width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1);background:rgba(27,111,168,.06);}

/* ============ 要点区 ============ */
.points{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.35fr);gap:56px;align-items:start;}
.points__lead h2{font-size:30px;line-height:1.4;margin-bottom:16px;}
.points__lead p{font-size:16px;line-height:1.9;color:var(--c-ink-2);}
.points__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.pcard{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.pcard:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(27,111,168,.35);}
.pcard__num{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:9px;
  background:var(--c-primary-50);color:var(--c-primary);
  font-size:14px;font-weight:700;letter-spacing:.03em;
}
.pcard h3{font-size:18px;line-height:1.5;margin:14px 0 8px;}
.pcard p{font-size:14.5px;line-height:1.8;color:var(--c-ink-2);}

/* ============ 交错图文 ============ */
.zig{display:grid;grid-template-columns:45% minmax(0,1fr);gap:52px;align-items:center;}
.zig + .zig{margin-top:88px;}
.zig__media img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1);background:rgba(27,111,168,.06);}
.zig__body h3{font-size:24px;line-height:1.45;margin-bottom:14px;}
.zig__body p{font-size:16px;line-height:1.9;color:var(--c-ink-2);margin-bottom:12px;}
.zig__body .link-arrow{margin-top:10px;}
.zig--rev{grid-template-columns:minmax(0,1fr) 45%;}
.zig--rev .zig__media{order:2;}
.zig--rev .zig__body{order:1;}

/* ============ 数据带 ============ */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;}
.stats li{display:flex;flex-direction:column;gap:6px;}
.stats b{font-size:44px;line-height:1.15;color:var(--c-accent);font-weight:600;letter-spacing:-.01em;}
.stats span{font-size:14px;color:var(--c-ink-2);}
.stats em{font-style:normal;font-size:13px;color:var(--c-ink-3);}

/* ============ CTA 带 ============ */
.cta-band{
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);
  gap:40px;align-items:center;
  background:var(--c-primary-50);border-radius:var(--r-img);
  padding:48px 48px;
}
.cta-band h2{font-size:28px;line-height:1.4;margin-bottom:12px;}
.cta-band p{font-size:16px;line-height:1.85;color:var(--c-ink-2);max-width:520px;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ============ footer ============ */
.site-footer{background:var(--c-footer);color:#D7E1E9;padding:64px 0 0;margin-top:0;}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px;letter-spacing:.02em;}
.footer ul li{font-size:14px;color:#8FA4B4;line-height:2.1;}
.footer ul li a{color:#D7E1E9;font-size:14px;}
.footer ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer__brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer p{font-size:14px;color:#8FA4B4;line-height:1.9;max-width:330px;}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(215,225,233,.14);padding:20px 0 26px;
  font-size:13px;color:#8FA4B4;
}
.footer__bottom a{color:#D7E1E9;}
.footer__bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:96%;}
}
@media (max-width:1024px){
  :root{--sec:64px;}
  .searchbox{display:none;}
  .hero__inner{grid-template-columns:minmax(0,1fr);gap:36px;}
  .hero h1{font-size:34px;}
  .hero--band{padding:56px 0 52px;}
  .points{grid-template-columns:minmax(0,1fr);gap:32px;}
  .zig,.zig--rev{grid-template-columns:minmax(0,1fr);gap:28px;}
  .zig--rev .zig__media{order:1;}
  .zig--rev .zig__body{order:2;}
  .zig + .zig{margin-top:56px;}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .stats b{font-size:38px;}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:36px 30px;}
  .cta-band__actions{justify-content:flex-start;}
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:768px){
  .brandbar__inner{min-height:60px;}
  .hotline{display:none;}
  .burger{display:inline-flex;}
  .channelbar{display:none;}
  .logo__text{font-size:16.5px;}
  .logo__text small{font-size:11px;}
  .hero h1{font-size:30px;}
  .hero__lead{font-size:16px;}
  .hero__meta{gap:24px;margin-top:28px;padding-top:22px;}
  .points__grid{grid-template-columns:minmax(0,1fr);}
  .points__lead h2{font-size:26px;}
  .zig__body h3{font-size:21px;}
  .cta-band h2{font-size:24px;}
  .cta-band__actions .btn{width:100%;}
}
@media (max-width:520px){
  .container{max-width:100%;padding:0 20px;}
  :root{--sec:46px;}
  .hero h1{font-size:26px;}
  .hero__meta{flex-direction:column;gap:16px;}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
  .stats b{font-size:32px;}
  .cta-band{padding:28px 20px;border-radius:16px;}
  .footer__grid{grid-template-columns:minmax(0,1fr);}
  .pcard{padding:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: article */
:root{
  --c-primary:#1B6FA8;
  --c-primary-600:#155C8C;
  --c-primary-50:#EAF3FA;
  --c-accent:#E98B2A;
  --c-accent-50:#FDF3E6;
  --c-teal:#2E9E8F;
  --c-ink:#16232E;
  --c-ink-2:#4A5A6A;
  --c-ink-3:#7C8B99;
  --c-line:#E3EAF1;
  --c-bg:#F6F9FC;
  --c-surface:#FFFFFF;
  --c-footer:#0F2231;
  --c-error:#C4553F;
  --c-success:#2E9E8F;
  --radius-card:14px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,42,67,.06),0 6px 18px rgba(16,42,67,.06);
  --shadow-2:0 10px 28px rgba(16,42,67,.12);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-2);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-600);text-decoration:underline;text-underline-offset:3px;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:600;line-height:1.35;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.pill{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--c-primary-50);color:var(--c-primary);font-size:13px;font-weight:500;}
.pill--teal{background:rgba(46,158,143,.12);color:var(--c-teal);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--c-primary);}
.link-arrow span{transition:transform .18s ease;}
.link-arrow:hover{text-decoration:none;color:var(--c-primary-600);}
.link-arrow:hover span{transform:translateX(4px);}
.btn{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 24px;border:1px solid transparent;border-radius:var(--radius-btn);font-size:15px;font-weight:500;cursor:pointer;transition:all .18s ease;white-space:nowrap;}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--c-primary);color:#fff;}
.btn--primary:hover{background:var(--c-primary-600);color:#fff;text-decoration:none;transform:translateY(-1px);}
.btn--accent{background:var(--c-accent);color:#16232E;}
.btn--accent:hover{background:#d97c1f;color:#16232E;text-decoration:none;transform:translateY(-1px);}
.btn--ghost{background:#fff;border-color:rgba(27,111,168,.35);color:var(--c-primary);}
.btn--ghost:hover{background:var(--c-primary-50);text-decoration:none;}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.pill--ghost{background:#fff;border:1px solid var(--c-line);color:var(--c-ink-2);font-size:12px;letter-spacing:.08em;}

/* 头部 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:0 6px 16px rgba(16,42,67,.08);}
.brandbar{background:#fff;border-bottom:1px solid var(--c-line);}
.brandbar__inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px;}
.logo{display:flex;align-items:center;gap:10px;color:var(--c-ink);}
.logo:hover{text-decoration:none;color:var(--c-ink);}
.logo__mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;background:var(--c-primary);color:#fff;font-weight:700;font-size:17px;}
.logo__text{display:flex;flex-direction:column;font-size:17px;font-weight:600;line-height:1.2;}
.logo__text small{font-size:11px;font-weight:400;color:var(--c-ink-3);letter-spacing:.04em;}
.brandbar__right{display:flex;align-items:center;gap:18px;}
.searchbox{display:flex;align-items:center;gap:8px;height:38px;padding:0 12px;border:1px solid var(--c-line);border-radius:var(--radius-btn);background:var(--c-bg);color:var(--c-ink-3);}
.searchbox input{border:0;background:transparent;font-size:14px;width:150px;color:var(--c-ink);outline:none;}
.hotline{font-size:14px;color:var(--c-ink-3);}
.hotline b{color:var(--c-ink);font-weight:600;}
.burger{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--radius-btn);background:#fff;cursor:pointer;align-items:center;justify-content:center;}
.burger span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.channelbar{background:var(--c-bg);border-bottom:1px solid var(--c-line);}
.channelbar__inner{display:flex;align-items:center;gap:28px;height:48px;overflow-x:auto;scrollbar-width:none;}
.channelbar__inner::-webkit-scrollbar{display:none;}
.channel{position:relative;height:48px;display:inline-flex;align-items:center;font-size:15px;font-weight:500;color:var(--c-ink-2);white-space:nowrap;}
.channel:hover{color:var(--c-primary);text-decoration:none;}
.channel.is-active{color:var(--c-primary);}
.channel.is-active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--c-primary);border-radius:2px;}
.nav-mask{position:fixed;inset:0;background:rgba(15,34,49,.6);opacity:0;visibility:hidden;transition:opacity .22s ease;z-index:70;}
.nav-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{position:fixed;top:0;right:0;width:82%;max-width:340px;height:100%;background:#fff;z-index:80;transform:translateX(102%);transition:transform .26s ease;padding:20px;overflow-y:auto;}
.nav-drawer.is-open{transform:translateX(0);}
.nav-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.nav-drawer__head strong{font-size:16px;color:var(--c-ink);}
.drawer-close{width:40px;height:40px;border:1px solid var(--c-line);border-radius:var(--radius-btn);background:#fff;font-size:18px;color:var(--c-ink-2);cursor:pointer;}
.nav-drawer a.drawer-link{display:block;padding:14px 4px;font-size:16px;color:var(--c-ink-2);border-bottom:1px solid var(--c-line);}
.nav-drawer a.drawer-link:hover{color:var(--c-primary);text-decoration:none;}
.nav-drawer a.drawer-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-drawer .btn{width:100%;margin-top:20px;}

/* 面包屑 */
.crumb-wrap{background:#fff;border-bottom:1px solid var(--c-line);}
.crumb{display:flex;align-items:center;flex-wrap:nowrap;gap:8px;padding:14px 0;font-size:14px;color:var(--c-ink-3);overflow:hidden;}
.crumb li{display:flex;align-items:center;gap:8px;white-space:nowrap;}
.crumb li:last-child{color:var(--c-ink-2);min-width:0;overflow:hidden;text-overflow:ellipsis;}
.crumb li+li::before{content:"/";color:#C3D0DB;}

/* 文章头与正文 */
.article-hero{background:#fff;padding:44px 0 36px;border-bottom:1px solid var(--c-line);}
.article-hero__inner{max-width:800px;margin:0 auto;}
.article-hero h1{margin:16px 0 0;font-size:38px;line-height:1.3;font-weight:600;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;font-size:14px;color:var(--c-ink-3);}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta .dot{width:1px;height:13px;background:var(--c-line);display:inline-block;}
.article-main{padding:56px 0 80px;}
.article-main__inner{max-width:800px;margin:0 auto;}
.article-body{font-size:17px;line-height:1.9;color:var(--c-ink-2);}
.article-body p{margin:0 0 1.15em;}
.article-body h2{position:relative;margin:2em 0 .75em;padding-left:16px;font-size:26px;line-height:1.4;color:var(--c-ink);font-weight:600;}
.article-body h2::before{content:"";position:absolute;left:0;top:7px;width:4px;height:20px;border-radius:2px;background:var(--c-primary);}
.article-body h3{margin:1.6em 0 .6em;font-size:20px;font-weight:600;color:var(--c-ink);}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;font-weight:600;color:var(--c-ink);}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:22px;}
.article-body ul{list-style:none;padding-left:0;}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:.4em;}
.article-body ul li::before{content:"";position:absolute;left:0;top:.78em;width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.article-body ol li{margin-bottom:.4em;}
.article-body strong{color:var(--c-ink);font-weight:600;}
.article-body a{border-bottom:1px solid rgba(27,111,168,.4);}
.article-body blockquote{margin:1.4em 0;padding:16px 22px;background:var(--c-primary-50);border-left:3px solid var(--c-primary);border-radius:10px;color:var(--c-ink-2);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:1.5em auto;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-ink-3);margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;}
.article-body th{background:var(--c-primary-50);color:var(--c-ink);font-weight:600;}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:11px 14px;text-align:left;}
.article-body tbody tr:nth-child(even){background:#FAFCFE;}
.article-body pre{margin:1.4em 0;padding:18px;background:var(--c-footer);color:#D7E1E9;border-radius:10px;font-size:14px;line-height:1.7;overflow-x:auto;}
.article-body code{padding:2px 6px;border-radius:6px;background:var(--c-primary-50);color:var(--c-primary-600);font-size:.92em;}
.article-body pre code{padding:0;background:none;color:inherit;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0;}

.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:26px;border-top:1px solid var(--c-line);}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid var(--c-line);font-size:13px;color:var(--c-ink-2);}
.tag:hover{border-color:rgba(27,111,168,.35);color:var(--c-primary);text-decoration:none;}
.back-channel{display:inline-flex;align-items:center;gap:6px;margin-top:26px;font-size:15px;font-weight:500;}

.empty-state{margin:24px 0;padding:40px 24px;border:1px dashed #C9D8E4;border-radius:var(--radius-card);background:#fff;text-align:center;}
.empty-state p{font-size:15px;color:var(--c-ink-3);margin-bottom:16px;}

/* 相关推荐 */
.related{background:#fff;border-top:1px solid var(--c-line);padding:80px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-size:28px;}
.card-grid{display: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(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(27,111,168,.35);}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:rgba(27,111,168,.06);}
.card__media img{width:100%;height:100%;object-fit:cover;}
.card__media .pill{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92);}
.card__body{display:flex;flex-direction:column;flex:1;padding:20px;}
.card__body h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card:hover .card__body h3{color:var(--c-primary);}
.card__desc{margin-top:10px;font-size:14px;color:var(--c-ink-3);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card__foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:16px;font-size:13px;color:var(--c-ink-3);}

/* 底部 CTA */
.cta-band{background:var(--c-primary-50);padding:64px 0;}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:32px;}
.cta-band h2{font-size:28px;margin-bottom:10px;}
.cta-band p{font-size:16px;color:var(--c-ink-2);}
.cta-band__actions{display:flex;align-items:center;gap:22px;flex-shrink:0;}

/* 页脚 */
.site-footer{background:var(--c-footer);color:#D7E1E9;padding:64px 0 0;}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:44px;}
.footer h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer ul li{margin-bottom:10px;font-size:14px;color:#8FA4B4;}
.footer ul li a{color:#D7E1E9;font-size:14px;}
.footer ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600;margin-bottom:14px;}
.footer__brand .logo__mark{width:32px;height:32px;border-radius:9px;background:var(--c-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;}
.footer p{font-size:14px;color:#8FA4B4;line-height:1.8;max-width:320px;}
.footer__bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#8FA4B4;}
.footer__bottom a{color:#D7E1E9;}

@media (max-width:1024px){
  .container{padding:0 24px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px;}
  .article-hero h1{font-size:32px;}
  .brandbar__right .hotline,.brandbar__right .searchbox{display:none;}
  .burger{display:inline-flex;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .article-hero{padding:32px 0 28px;}
  .article-hero h1{font-size:27px;}
  .article-main{padding:36px 0 56px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:22px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .related{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .card-grid{grid-template-columns:1fr;}
  .cta-band{padding:48px 0;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;}
  .cta-band__actions{flex-direction:column;align-items:stretch;width:100%;gap:14px;}
  .cta-band__actions .btn{width:100%;}
  .footer__grid{grid-template-columns:1fr;gap:26px;}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:560px){
  .logo__text small{display:none;}
  .brandbar__inner{height:60px;}
  .article-meta{gap:10px;}
  .article-meta .dot{display:none;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1B6FA8;
  --c-primary-600:#155C8C;
  --c-primary-50:#EAF3FA;
  --c-accent:#E98B2A;
  --c-accent-50:#FDF3E6;
  --c-teal:#2E9E8F;
  --c-ink:#16232E;
  --c-ink-2:#4A5A6A;
  --c-ink-3:#7C8B99;
  --c-line:#E3EAF1;
  --c-bg:#F6F9FC;
  --c-surface:#FFFFFF;
  --c-footer:#0F2231;
  --c-error:#C4553F;
  --c-success:#2E9E8F;
  --r-card:14px;
  --r-lg:20px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,42,67,.06),0 6px 18px rgba(16,42,67,.06);
  --sh-2:0 10px 28px rgba(16,42,67,.12);
  --sec:92px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-600);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:600;line-height:1.35}
h1{font-size:38px;line-height:1.3}
h2{font-size:30px}
h3{font-size:21px;line-height:1.5}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sec) 0}
.section--tight{padding:64px 0}
.section--white{background:var(--c-surface)}
.sec-head{max-width:720px}
.sec-head .eyebrow{display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--c-teal);background:rgba(46,158,143,.1);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:14px}
.sec-head h2{margin-bottom:14px}
.sec-head p{font-size:16.5px;color:var(--c-ink-2)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15.5px;font-weight:600;cursor:pointer;transition:background-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease}
.btn--primary{background:var(--c-primary);color:#fff}
.btn--primary:hover{background:var(--c-primary-600);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 20px rgba(27,111,168,.22)}
.btn--accent{background:var(--c-accent);color:var(--c-ink)}
.btn--accent:hover{background:#d97f20;color:var(--c-ink);text-decoration:none;transform:translateY(-1px)}
.btn--ghost{background:#fff;border-color:rgba(27,111,168,.35);color:var(--c-primary)}
.btn--ghost:hover{background:var(--c-primary-50);color:var(--c-primary-600);text-decoration:none}
.btn--sm{height:38px;padding:0 18px;font-size:14px}
.btn:active{transform:translateY(1px)}
.btn[disabled]{opacity:.45;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary)}
.link-arrow span{transition:transform .18s ease}
.link-arrow:hover{text-decoration:none;color:var(--c-primary-600)}
.link-arrow:hover span{transform:translateX(4px)}
.pill{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:rgba(27,111,168,.08);color:var(--c-primary);font-size:12.5px;font-weight:600;letter-spacing:.02em}
.pill--teal{background:rgba(46,158,143,.12);color:var(--c-teal)}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;transition:box-shadow .2s ease}
.site-header.is-stuck{box-shadow:0 6px 16px rgba(16,42,67,.08)}
.brandbar{border-bottom:1px solid var(--c-line);background:#fff}
.brandbar__inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo:hover{text-decoration:none}
.logo__mark{width:36px;height:36px;border-radius:10px;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;flex:none}
.logo__text{display:flex;flex-direction:column;font-size:17px;font-weight:700;color:var(--c-ink);line-height:1.2}
.logo__text small{font-size:11.5px;font-weight:400;color:var(--c-ink-3);letter-spacing:.02em;margin-top:2px}
.brandbar__right{display:flex;align-items:center;gap:18px}
.searchbox{display:flex;align-items:center;gap:8px;height:38px;padding:0 12px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:var(--c-bg);color:var(--c-ink-3);transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease}
.searchbox:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(27,111,168,.10)}
.searchbox input{border:0;background:transparent;outline:none;font-size:14px;color:var(--c-ink);width:150px}
.searchbox input::placeholder{color:var(--c-ink-3)}
.hotline{font-size:13.5px;color:var(--c-ink-3);white-space:nowrap}
.hotline b{color:var(--c-ink);font-weight:600}
.burger{display:none;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-btn);cursor:pointer;position:relative}
.burger span,.burger span::before,.burger span::after{position:absolute;left:12px;width:20px;height:2px;background:var(--c-ink);border-radius:2px;content:""}
.burger span{top:21px}
.burger span::before{top:-6px;left:0}
.burger span::after{top:6px;left:0}
.channelbar{background:var(--c-bg);border-bottom:1px solid var(--c-line)}
.channelbar__inner{display:flex;align-items:center;gap:28px;height:48px;overflow-x:auto;scrollbar-width:none}
.channelbar__inner::-webkit-scrollbar{display:none}
.channel{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);white-space:nowrap;padding:0 2px;line-height:48px;height:48px;display:inline-flex;align-items:center}
.channel:hover{color:var(--c-primary);text-decoration:none}
.channel.is-active{color:var(--c-primary);font-weight:600}
.channel.is-active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--c-primary);border-radius:2px 2px 0 0}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(22,35,46,.6);opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;background:#fff;z-index:90;transform:translateX(100%);transition:transform .26s ease;padding:20px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer__title{font-size:16px;font-weight:700;color:var(--c-ink)}
.drawer__close{width:40px;height:40px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;cursor:pointer;font-size:20px;line-height:1;color:var(--c-ink-2)}
.drawer__link{display:block;padding:14px 4px;border-bottom:1px solid var(--c-line);font-size:15.5px;color:var(--c-ink-2);font-weight:500}
.drawer__link:hover{color:var(--c-primary);text-decoration:none}
.drawer__link.is-active{color:var(--c-primary);font-weight:600}
.drawer .btn{width:100%;margin-top:20px}

/* ---------- 面包屑 ---------- */
.crumb{padding:20px 0 0}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-ink-3)}
.crumb li{display:flex;align-items:center;gap:8px;min-width:0}
.crumb li+li::before{content:"/";color:var(--c-line)}
.crumb a{color:var(--c-ink-2)}
.crumb strong{color:var(--c-ink);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:320px}

/* ---------- Hero（居中窄栏） ---------- */
.hero-c{padding:44px 0 72px;text-align:center;position:relative;overflow:hidden}
.hero-c::before{content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;background:rgba(27,111,168,.06);z-index:0}
.hero-c .container{position:relative;z-index:1}
.hero-c__inner{max-width:780px;margin:0 auto}
.hero-c h1{margin:16px auto 18px;font-size:38px;max-width:720px}
.hero-c__lead{font-size:17px;color:var(--c-ink-2);max-width:640px;margin:0 auto}
.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:30px}
.chip{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-line);color:var(--c-ink-2);font-size:14px;transition:border-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease}
.chip:hover{border-color:rgba(27,111,168,.35);color:var(--c-primary);box-shadow:var(--sh-1);text-decoration:none;transform:translateY(-1px)}
.hero-c__actions{display:flex;justify-content:center;gap:14px;margin-top:30px;flex-wrap:wrap}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:44px}
.tl-item{display:grid;grid-template-columns:78px 1fr;gap:20px;position:relative;padding-bottom:22px}
.tl-item:last-child{padding-bottom:0}
.tl-num{width:56px;height:56px;border-radius:16px;background:var(--c-primary-50);color:var(--c-primary);font-size:26px;font-weight:700;display:flex;align-items:center;justify-content:center;position:relative;z-index:1}
.tl-item:not(:last-child)::after{content:"";position:absolute;left:27px;top:60px;bottom:2px;width:0;border-left:2px dashed rgba(27,111,168,.3)}
.tl-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease}
.tl-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(27,111,168,.35)}
.tl-card h3{margin-bottom:10px}
.tl-card p{font-size:15.5px;color:var(--c-ink-2)}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tl-tags span{font-size:12.5px;color:var(--c-ink-3);background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-pill);padding:3px 12px}

/* ---------- 横滑案例 ---------- */
.rail-wrap{position:relative;margin-top:40px}
.rail-wrap::before,.rail-wrap::after{content:"";position:absolute;top:0;bottom:14px;width:48px;z-index:2;pointer-events:none}
.rail-wrap::before{left:-2px;background:linear-gradient(to right,var(--c-bg),rgba(246,249,252,0))}
.rail-wrap::after{right:-2px;background:linear-gradient(to left,var(--c-bg),rgba(246,249,252,0))}
.rail{display:flex;gap:20px;overflow-x:auto;padding:4px 4px 16px;scroll-snap-type:x proximity;scrollbar-width:none;cursor:grab}
.rail::-webkit-scrollbar{display:none}
.case-card{flex:0 0 320px;width:320px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);scroll-snap-align:start;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(27,111,168,.35)}
.case-card__media{aspect-ratio:16/10;background:rgba(27,111,168,.06);overflow:hidden}
.case-card__media img{width:100%;height:100%;object-fit:cover}
.case-card__body{padding:18px 20px 22px}
.case-card__body h3{font-size:18px;margin-bottom:8px}
.case-card__body p{font-size:14.5px;color:var(--c-ink-2)}
.rail-hint{margin-top:6px;font-size:13px;color:var(--c-ink-3)}

/* ---------- 保障要点 ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px}
.assure{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:box-shadow .2s ease,transform .2s ease}
.assure:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.assure--a{border-left:3px solid var(--c-primary)}
.assure--b{border-left:3px solid var(--c-teal)}
.assure--c{border-left:3px solid var(--c-accent)}
.assure--d{border-left:3px solid rgba(27,111,168,.35)}
.assure h3{font-size:19px;margin-bottom:10px}
.assure p{font-size:15px;color:var(--c-ink-2)}
.assure ul{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.assure li{position:relative;padding-left:16px;font-size:14.5px;color:var(--c-ink-2)}
.assure li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-accent)}

/* ---------- FAQ ---------- */
.faq{margin-top:34px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq-item+.faq-item{border-top:1px solid var(--c-line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;background:transparent;border:0;padding:22px 24px;font-size:17px;font-weight:600;color:var(--c-ink);cursor:pointer;transition:color .18s ease,background-color .18s ease}
.faq-q:hover{color:var(--c-primary);background:rgba(27,111,168,.04)}
.faq-item.is-open .faq-q{color:var(--c-primary)}
.faq-icon{flex:none;width:20px;height:20px;position:relative;transition:transform .22s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 24px 24px;font-size:15.5px;line-height:1.85;color:var(--c-ink-2)}
.faq-item.is-open .faq-a{max-height:420px}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;background:var(--c-primary-50);border-radius:var(--r-lg);overflow:hidden;padding:52px 0}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.png');background-size:cover;background-position:center;opacity:.4;mix-blend-mode:normal}
.cta-band__inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band h2{font-size:28px;margin-bottom:10px}
.cta-band p{font-size:16px;color:var(--c-ink-2);max-width:560px}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;flex:none}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-footer);color:#D7E1E9;margin-top:var(--sec);padding:64px 0 0}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.02em}
.footer p{font-size:14px;color:#8FA4B4;line-height:1.9;max-width:300px}
.footer ul{display:flex;flex-direction:column;gap:10px}
.footer li{font-size:14px;color:#8FA4B4}
.footer a{color:#D7E1E9;font-size:14px}
.footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px}
.footer__bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8FA4B4}
.footer__bottom a{font-size:13px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:96%}
}
@media (max-width:1024px){
  :root{--sec:64px}
  .hero-c{padding:32px 0 56px}
  .hero-c h1{font-size:34px}
  h2{font-size:27px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
  .searchbox{display:none}
}
@media (max-width:768px){
  :root{--sec:48px}
  .container{padding:0 20px;max-width:100%}
  .brandbar__inner{height:60px}
  .hotline{display:none}
  .burger{display:block}
  .channelbar{display:none}
  .brandbar__right .btn--sm{display:none}
  .hero-c h1{font-size:29px}
  h2{font-size:24px}
  h3{font-size:19px}
  .hero-c__lead{font-size:16px}
  .grid-2{grid-template-columns:1fr}
  .tl-item{grid-template-columns:56px 1fr;gap:14px}
  .tl-num{width:46px;height:46px;font-size:20px;border-radius:14px}
  .tl-item:not(:last-child)::after{left:22px;top:50px}
  .tl-card{padding:20px}
  .case-card{flex:0 0 272px;width:272px}
  .cta-band{padding:40px 0}
  .cta-band__inner{flex-direction:column;align-items:flex-start;gap:22px}
  .btn{width:100%}
  .cta-band__actions,.hero-c__actions{width:100%}
  .footer__grid{grid-template-columns:1fr;gap:26px}
  .footer p{max-width:none}
  .crumb strong{max-width:180px}
}
@media (max-width:520px){
  .hero-c h1{font-size:26px}
  .chips{gap:8px}
  .chip{height:32px;padding:0 13px;font-size:13px}
  h2{font-size:22px}
  .faq-q{font-size:16px;padding:18px}
  .faq-a p{padding:0 18px 20px}
}

/* roulang page: category3 */
:root{
  --c-primary:#1B6FA8;
  --c-primary-600:#155C8C;
  --c-primary-50:#EAF3FA;
  --c-accent:#E98B2A;
  --c-accent-50:#FDF3E6;
  --c-teal:#2E9E8F;
  --c-ink:#16232E;
  --c-ink-2:#4A5A6A;
  --c-ink-3:#7C8B99;
  --c-line:#E3EAF1;
  --c-bg:#F6F9FC;
  --c-surface:#FFFFFF;
  --c-footer:#0F2231;
  --c-error:#C4553F;
  --c-success:#2E9E8F;
  --r-card:14px;
  --r-img:20px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,42,67,.06), 0 6px 18px rgba(16,42,67,.06);
  --sh-2:0 10px 28px rgba(16,42,67,.12);
  --sec:92px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink-2);
  background:var(--c-bg);
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:600;line-height:1.35;}
h1{font-size:38px;line-height:1.28;letter-spacing:.01em;}
h2{font-size:30px;}
h3{font-size:21px;line-height:1.5;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-600);text-decoration:underline;text-underline-offset:3px;}
img{max-width:100%;display:block;}
button,input{font:inherit;color:inherit;}
input{background:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--sec) 0;}
.section--tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head p{max-width:560px;font-size:15px;color:var(--c-ink-3);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--c-teal);
  border:1px solid rgba(46,158,143,.3);background:rgba(46,158,143,.08);
  height:26px;padding:0 12px;border-radius:999px;margin-bottom:18px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .15s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--c-primary);color:#fff;}
.btn--primary:hover{background:var(--c-primary-600);color:#fff;text-decoration:none;box-shadow:0 8px 20px rgba(16,42,67,.14);}
.btn--ghost{background:#fff;color:var(--c-primary);border-color:rgba(27,111,168,.35);}
.btn--ghost:hover{background:var(--c-primary-50);color:var(--c-primary-600);text-decoration:none;}
.btn--accent{background:var(--c-accent);color:#16232E;}
.btn--accent:hover{background:#d97c1c;color:#16232E;text-decoration:none;box-shadow:0 8px 20px rgba(233,139,42,.28);}
.btn--sm{height:38px;padding:0 16px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);}
.link-arrow span{transition:transform .2s ease;}
.link-arrow:hover{text-decoration:none;color:var(--c-primary-600);}
.link-arrow:hover span{transform:translateX(4px);}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:var(--c-primary-50);color:var(--c-primary);
}
.chip--teal{background:rgba(46,158,143,.1);color:var(--c-teal);}
.chip--accent{background:var(--c-accent-50);color:#b96a12;}

/* 头部 */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:0 6px 16px rgba(16,42,67,.08);}
.brandbar{border-bottom:1px solid var(--c-line);background:var(--c-surface);}
.brandbar__inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:24px;}
.logo{display:flex;align-items:center;gap:12px;}
.logo:hover{text-decoration:none;}
.logo__mark{
  width:38px;height:38px;border-radius:11px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:19px;flex:0 0 auto;
}
.logo__text{display:flex;flex-direction:column;font-size:18px;font-weight:700;color:var(--c-ink);line-height:1.2;}
.logo__text small{font-size:12px;font-weight:400;color:var(--c-ink-3);letter-spacing:.02em;margin-top:2px;}
.brandbar__right{display:flex;align-items:center;gap:18px;}
.searchbox{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:999px;
  border:1px solid var(--c-line);background:var(--c-bg);color:var(--c-ink-3);min-width:210px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.searchbox:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(27,111,168,.1);background:#fff;}
.searchbox input{border:0;outline:none;width:100%;font-size:14px;color:var(--c-ink);}
.searchbox input::placeholder{color:var(--c-ink-3);}
.hotline{font-size:13px;color:var(--c-ink-3);}
.hotline b{display:block;font-size:15px;color:var(--c-ink);font-weight:600;letter-spacing:.02em;}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  align-items:center;justify-content:center;cursor:pointer;padding:0;
}
.burger span{position:relative;width:18px;height:2px;background:var(--c-ink);border-radius:2px;display:block;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* 频道行 */
.channelbar{background:var(--c-bg);border-bottom:1px solid var(--c-line);}
.channelbar__inner{display:flex;align-items:center;gap:28px;height:48px;overflow-x:auto;scrollbar-width:none;}
.channelbar__inner::-webkit-scrollbar{display:none;}
.channel{
  position:relative;display:inline-flex;align-items:center;height:48px;
  font-size:15px;font-weight:500;color:var(--c-ink-2);white-space:nowrap;
}
.channel:hover{color:var(--c-primary);text-decoration:none;}
.channel.is-active{color:var(--c-primary);font-weight:600;}
.channel.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--c-primary);border-radius:2px 2px 0 0;
}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,34,49,.6);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .28s ease;padding:20px;overflow-y:auto;
  box-shadow:-10px 0 30px rgba(16,42,67,.16);
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer__close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;cursor:pointer;
  font-size:20px;line-height:1;color:var(--c-ink-2);
}
.drawer__nav{display:flex;flex-direction:column;}
.drawer__nav a{
  padding:14px 4px;border-bottom:1px solid var(--c-line);font-size:16px;color:var(--c-ink-2);font-weight:500;
}
.drawer__nav a.is-active{color:var(--c-primary);font-weight:600;}
.drawer__nav a:hover{text-decoration:none;color:var(--c-primary);}
.drawer__foot{margin-top:24px;font-size:14px;color:var(--c-ink-3);line-height:2;}

/* 面包屑 */
.crumb{padding:20px 0 0;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-ink-3);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li::after{content:"/";color:#c3cfda;}
.crumb li:last-child::after{content:"";}
.crumb a{color:var(--c-ink-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb strong{color:var(--c-ink-2);font-weight:500;}

/* Hero */
.hero{padding:36px 0 0;}
.hero__grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.hero__text{max-width:600px;}
.hero__text h1{font-size:38px;margin-bottom:18px;}
.hero__text h1 em{font-style:normal;color:var(--c-primary);}
.hero__lead{font-size:16.5px;line-height:1.85;color:var(--c-ink-2);margin-bottom:16px;}
.hero__actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:26px;}
.hero__note{font-size:13.5px;color:var(--c-ink-3);margin-top:14px;}
.hero__stack{display:flex;flex-direction:column;gap:18px;}
.datacard{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);transition:box-shadow .25s ease,border-color .25s ease,transform .2s ease;
}
.datacard:hover{box-shadow:var(--sh-2);border-color:rgba(27,111,168,.35);transform:translateY(-2px);}
.datacard--offset{margin-left:44px;}
.datacard h3{font-size:17px;margin-bottom:6px;}
.datacard .price{font-size:32px;font-weight:700;color:var(--c-accent);line-height:1.2;letter-spacing:.01em;}
.datacard .price small{font-size:14px;color:var(--c-ink-3);font-weight:500;margin-left:4px;}
.datacard p{font-size:14px;color:var(--c-ink-3);margin-top:8px;}
.datacard__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* 对照表 */
.table-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:8px 8px 16px;overflow:hidden;
}
.table-card__head{padding:22px 20px 16px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;}
.table-card__head h3{font-size:20px;}
.table-wrap{width:100%;overflow-x:auto;}
.cmp-table{width:100%;border-collapse:collapse;min-width:720px;}
.cmp-table caption{text-align:left;padding:0 20px 14px;font-size:13px;color:var(--c-ink-3);}
.cmp-table th,.cmp-table td{padding:15px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--c-line);vertical-align:top;}
.cmp-table thead th{
  background:var(--c-primary-50);color:var(--c-ink);font-weight:600;font-size:14.5px;white-space:nowrap;
  border-bottom:1px solid #d6e5f0;
}
.cmp-table thead th:first-child{border-radius:10px 0 0 0;}
.cmp-table thead th:last-child{border-radius:0 10px 0 0;}
.cmp-table tbody tr:nth-child(even){background:#FAFCFE;}
.cmp-table tbody tr:hover{background:rgba(27,111,168,.04);}
.cmp-table td:first-child{font-weight:600;color:var(--c-ink);white-space:nowrap;}
.cmp-table td strong{color:var(--c-accent);font-weight:700;}
.cmp-table tbody tr:last-child td{border-bottom:0;}

/* 推荐卡 */
.picks{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.pick{
  background:var(--c-surface);border-radius:var(--r-card);border:1px solid var(--c-line);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .25s ease,transform .2s ease,border-color .25s ease;
}
.pick:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.pick--a{border-color:rgba(27,111,168,.18);}
.pick--b{border-color:rgba(27,111,168,.34);}
.pick--c{border-color:rgba(27,111,168,.6);}
.pick__img{aspect-ratio:16/10;width:100%;object-fit:cover;background:rgba(27,111,168,.06);}
.pick__body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.pick__body h3{font-size:19px;margin-bottom:10px;}
.pick__body p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;}
.pick__list{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.pick__list li{position:relative;padding-left:16px;font-size:14px;color:var(--c-ink-2);}
.pick__list li::before{
  content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:50%;background:var(--c-accent);
}
.pick__foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.pick__foot .price-tag{font-size:15px;font-weight:700;color:var(--c-accent);}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:8px 26px;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.6;
}
.faq-q:hover{color:var(--c-primary);}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-icon{
  position:relative;flex:0 0 auto;width:20px;height:20px;transition:transform .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:16px;height:2px;}
.faq-icon::after{width:2px;height:16px;transition:opacity .2s ease;}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 0 22px;font-size:15.5px;line-height:1.85;color:var(--c-ink-2);}

/* CTA */
.cta-band{
  background:var(--c-primary-50);border-radius:20px;padding:44px;
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
  border:1px solid rgba(27,111,168,.12);
}
.cta-band h2{font-size:27px;margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--c-ink-2);max-width:520px;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.cta-band__tel{font-size:14px;color:var(--c-ink-3);width:100%;}
.cta-band__tel b{color:var(--c-ink);font-weight:600;}

/* 页脚 */
.site-footer{background:var(--c-footer);color:#D7E1E9;margin-top:0;padding:64px 0 28px;}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer__brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer__brand .logo__mark{width:34px;height:34px;font-size:17px;border-radius:10px;}
.footer p{font-size:14px;color:#8FA4B4;line-height:1.9;}
.footer h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer ul{display:flex;flex-direction:column;gap:10px;}
.footer ul li{font-size:14px;color:#8FA4B4;}
.footer ul a{font-size:14px;color:#8FA4B4;}
.footer ul a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer__bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8FA4B4;
}
.footer__bottom a{color:#D7E1E9;}
.footer__bottom a:hover{color:#fff;}

@media (max-width:1280px){
  .container{max-width:96%;}
}
@media (max-width:1024px){
  :root{--sec:72px;}
  h1{font-size:34px;}
  .hero__text h1{font-size:34px;}
  .hero__grid{grid-template-columns:1fr;gap:36px;}
  .hero__text{max-width:none;}
  .datacard--offset{margin-left:0;}
  .picks{grid-template-columns:1fr 1fr;}
  .pick--c{grid-column:span 2;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
  .searchbox{display:none;}
  .cta-band{grid-template-columns:1fr;padding:34px;}
}
@media (max-width:768px){
  :root{--sec:56px;}
  .container{padding:0 20px;}
  h1{font-size:29px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .hero__text h1{font-size:29px;}
  .brandbar__inner{height:60px;}
  .hotline{display:none;}
  .burger{display:flex;}
  .channelbar{display:none;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:28px;}
  .cmp-table{min-width:0;}
  .cmp-table thead{display:none;}
  .cmp-table,.cmp-table tbody,.cmp-table tr,.cmp-table td{display:block;width:100%;}
  .cmp-table tr{
    border:1px solid var(--c-line);border-radius:14px;background:#fff;padding:14px 16px;
    margin-bottom:16px;box-shadow:var(--sh-1);
  }
  .cmp-table tbody tr:nth-child(even){background:#fff;}
  .cmp-table td{
    display:flex;justify-content:space-between;gap:16px;padding:9px 0;
    border-bottom:1px dashed var(--c-line);font-size:14px;
  }
  .cmp-table td:last-child{border-bottom:0;}
  .cmp-table td::before{
    content:attr(data-label);color:var(--c-ink-3);font-size:13.5px;flex:0 0 auto;
  }
  .cmp-table td:first-child{
    font-size:16px;font-weight:600;color:var(--c-ink);padding-bottom:12px;white-space:normal;
  }
  .cmp-table td:first-child::before{content:"";}
  .table-card{padding:6px 6px 12px;}
  .picks{grid-template-columns:1fr;}
  .pick--c{grid-column:auto;}
  .faq-wrap{padding:6px 18px;}
  .faq-q{font-size:16px;padding:18px 0;min-height:44px;}
  .cta-band{padding:26px;border-radius:16px;}
  .cta-band__actions .btn{width:100%;}
  .footer__grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{padding:48px 0 22px;}
}
@media (max-width:560px){
  .hero__actions .btn{width:100%;}
  .hero__actions{flex-direction:column;align-items:stretch;}
  .datacard{padding:18px;}
  .datacard .price{font-size:27px;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1B6FA8;
  --c-primary-600:#155C8C;
  --c-primary-50:#EAF3FA;
  --c-accent:#E98B2A;
  --c-accent-50:#FDF3E6;
  --c-teal:#2E9E8F;
  --c-ink:#16232E;
  --c-ink-2:#4A5A6A;
  --c-ink-3:#7C8B99;
  --c-line:#E3EAF1;
  --c-bg:#F6F9FC;
  --c-surface:#FFFFFF;
  --c-footer:#0F2231;
  --c-error:#C4553F;
  --c-success:#2E9E8F;
  --r-card:14px;
  --r-lg:20px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,42,67,.06),0 6px 18px rgba(16,42,67,.06);
  --sh-2:0 10px 28px rgba(16,42,67,.12);
  --sec:92px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-600);text-decoration:underline;text-underline-offset:3px}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:600;line-height:1.35}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 按钮 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--c-primary);color:#fff}
.btn--primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px)}
.btn--accent{background:var(--c-accent);color:var(--c-ink)}
.btn--accent:hover{background:#d97e21;color:var(--c-ink);transform:translateY(-1px)}
.btn--ghost{background:#fff;border-color:rgba(27,111,168,.35);color:var(--c-primary)}
.btn--ghost:hover{background:var(--c-primary-50);color:var(--c-primary-600)}
.btn--sm{height:38px;padding:0 18px;font-size:14px;border-radius:8px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:500;color:var(--c-primary)}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover{text-decoration:none;color:var(--c-primary-600)}
.link-arrow:hover svg{transform:translateX(4px)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-50);color:var(--c-primary);font-size:12.5px;font-weight:500;line-height:1;
}
.badge--teal{background:rgba(46,158,143,.12);color:#1F7A6E}
.badge--accent{background:var(--c-accent-50);color:#A9620F}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60}
.site-header.is-scrolled .brandbar{box-shadow:0 6px 16px rgba(16,42,67,.08)}
.brandbar{background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease}
.brandbar__inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo:hover{text-decoration:none}
.logo__mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:19px;flex:0 0 auto;
}
.logo__text{display:flex;flex-direction:column;line-height:1.15;color:var(--c-ink);font-size:17px;font-weight:600}
.logo__text small{font-size:11.5px;font-weight:400;color:var(--c-ink-3);letter-spacing:.06em}
.brandbar__right{display:flex;align-items:center;gap:18px}
.searchbox{display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;border:1px solid var(--c-line);border-radius:999px;background:var(--c-bg);color:var(--c-ink-3)}
.searchbox input{border:0;background:transparent;outline:none;width:150px;font-size:14px}
.searchbox input::placeholder{color:var(--c-ink-3)}
.hotline{font-size:13.5px;color:var(--c-ink-3)}
.hotline b{color:var(--c-ink);font-weight:600}
.burger{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;align-items:center;justify-content:center}
.burger span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink)}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.channelbar{background:var(--c-bg);border-bottom:1px solid var(--c-line)}
.channelbar__inner{display:flex;align-items:center;gap:28px;min-height:48px;flex-wrap:wrap}
.channel{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:12px 0;display:inline-block}
.channel:hover{color:var(--c-primary);text-decoration:none}
.channel.is-active{color:var(--c-primary)}
.channel.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;border-radius:3px;background:var(--c-primary)}
.nav-close{display:none}
.nav-mask{position:fixed;inset:0;background:rgba(15,34,49,.6);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:70}

/* ---------- 分类页首屏 ---------- */
.c4hero{position:relative;background:var(--c-primary-50);overflow:hidden}
.c4hero__media{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center right;background-repeat:no-repeat}
.c4hero__media::after{content:"";position:absolute;inset:0;background:rgba(255,255,255,.4)}
.c4hero .container{position:relative;z-index:2;padding-top:84px;padding-bottom:80px}
.c4hero__eyebrow{margin-bottom:16px}
.c4hero h1{font-size:38px;line-height:1.28;max-width:760px;letter-spacing:-.2px}
.c4hero__lead{margin-top:18px;max-width:660px;font-size:17px;color:var(--c-ink-2)}
.c4hero__actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:30px}
.c4hero__meta{display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:32px;font-size:14px;color:var(--c-ink-3)}
.c4hero__meta b{color:var(--c-accent);font-size:20px;font-weight:600;margin-right:6px}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0}
.section--tight{padding:calc(var(--sec) - 24px) 0}
.section--alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:30px;line-height:1.35}
.sec-head p{margin-top:14px;font-size:16.5px;color:var(--c-ink-2)}
.sec-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.sec-head--split .sec-head__text{max-width:720px}

/* ---------- 错位砖块 ---------- */
.mosaic{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.brick{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.brick:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(27,111,168,.35)}
.brick__media{width:100%;height:100%;min-height:200px;object-fit:cover}
.brick__media--wide{aspect-ratio:21/9;min-height:0}
.brick__body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.brick__body h3{font-size:20px}
.brick__body p{font-size:15px;color:var(--c-ink-2)}
.brick__foot{margin-top:auto;padding-top:6px}
.brick--lg-1{grid-column:1/5;grid-row:1/3}
.brick--sm-1{grid-column:5/7;grid-row:1/2}
.brick--sm-2{grid-column:5/7;grid-row:2/3}
.brick--lg-2{grid-column:1/7;grid-row:3/4}
.brick--lg-2 .brick__inner{display:grid;grid-template-columns:1fr 1.1fr;align-items:center;height:100%}
.brick--lg-2 .brick__media--wide{height:100%;aspect-ratio:auto;min-height:280px}
.brick--flat{background:var(--c-primary-50);border-color:transparent;box-shadow:none}
.brick--flat:hover{box-shadow:var(--sh-1);border-color:rgba(27,111,168,.2)}
.brick__num{
  display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:8px;
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;margin-bottom:4px;
}
.brick__tag{font-size:13px;color:var(--c-teal);font-weight:600}

/* ---------- 团队与职责 ---------- */
.team-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;margin-top:8px}
.team-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);text-align:left;transition:transform .22s ease,box-shadow .22s ease}
.team-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.team-card img{width:64px;height:64px;border-radius:50%;object-fit:cover;margin-bottom:16px}
.team-card h3{font-size:17px;margin-bottom:4px}
.team-card span{display:block;font-size:13.5px;color:var(--c-teal);font-weight:600;margin-bottom:8px}
.team-card p{font-size:14.5px;color:var(--c-ink-2)}
.team-note{
  margin-top:36px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
}
.team-note div{
  background:#fff;border:1px solid var(--c-line);border-left:3px solid var(--c-accent);
  border-radius:10px;padding:16px 18px;font-size:14.5px;color:var(--c-ink-2);
}
.team-note strong{display:block;color:var(--c-ink);font-size:15px;margin-bottom:4px;font-weight:600}

/* ---------- 表单 ---------- */
.contact-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:start}
.contact-side h2{font-size:30px}
.contact-side p{margin-top:16px;font-size:16.5px}
.contact-list{margin-top:28px;border-top:1px solid var(--c-line)}
.contact-list li{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--c-line);font-size:15px;
}
.contact-list b{color:var(--c-ink);font-weight:600;min-width:76px;display:inline-block}
.contact-form{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:32px}
.contact-form__title{font-size:20px;margin-bottom:6px}
.contact-form__sub{font-size:14.5px;color:var(--c-ink-3);margin-bottom:24px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1/-1}
.field label{font-size:14px;font-weight:500;color:var(--c-ink)}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:118px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--c-ink-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(27,111,168,.10);
}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--c-error)}
.field__error{display:none;font-size:13px;color:var(--c-error)}
.field.has-error .field__error{display:block}
.form-actions{margin-top:24px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-privacy{margin-top:16px;font-size:13px;color:var(--c-ink-3);line-height:1.7}
.form-success{
  display:none;align-items:center;gap:10px;margin-top:18px;padding:12px 16px;
  background:rgba(46,158,143,.10);border:1px solid rgba(46,158,143,.3);
  border-radius:10px;color:#1F7A6E;font-size:14.5px;
}
.form-success.is-visible{display:flex}

/* ---------- FAQ ---------- */
.faq{max-width:900px;border-top:1px solid var(--c-line)}
.faq__item{border-bottom:1px solid var(--c-line)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;padding:22px 4px;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-ink);transition:color .2s ease;
}
.faq__q:hover{color:var(--c-primary)}
.faq__icon{flex:0 0 auto;width:20px;height:20px;position:relative}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .25s ease}
.faq__icon::before{left:0;top:9px;width:20px;height:2px}
.faq__icon::after{left:9px;top:0;width:2px;height:20px}
.faq__item.is-open .faq__q{color:var(--c-primary)}
.faq__item.is-open .faq__icon::after{transform:rotate(90deg);opacity:0}
.faq__a{display:none;padding:0 4px 24px;font-size:15.5px;color:var(--c-ink-2);max-width:800px}
.faq__item.is-open .faq__a{display:block}

/* ---------- 底部信息条 ---------- */
.info-strip{background:var(--c-primary-50);border-top:1px solid var(--c-line)}
.info-strip__grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding:44px 0}
.info-item{display:flex;gap:14px;align-items:flex-start}
.info-item__icon{
  flex:0 0 auto;width:40px;height:40px;border-radius:10px;background:#fff;color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-1);
}
.info-item h3{font-size:14px;color:var(--c-ink-3);font-weight:600;letter-spacing:.04em;margin-bottom:4px}
.info-item p{font-size:15.5px;color:var(--c-ink)}
.info-item a{color:var(--c-ink)}
.info-item a:hover{color:var(--c-primary)}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--c-primary-50);border-top:1px solid var(--c-line)}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0;flex-wrap:wrap}
.cta-band h2{font-size:28px}
.cta-band p{margin-top:10px;font-size:16px;color:var(--c-ink-2)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-footer);color:#D7E1E9;padding:64px 0 0;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px}
.footer p{font-size:14px;color:#8FA4B4;line-height:1.85}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600;margin-bottom:14px}
.footer__brand .logo__mark{background:rgba(255,255,255,.12)}
.footer ul li{margin-bottom:10px}
.footer ul li a,.footer ul li{font-size:14px;color:#8FA4B4}
.footer ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;
  align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8FA4B4;
}
.footer__bottom a{color:#D7E1E9}
.footer__bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:96%}
}
@media (max-width:1024px){
  :root{--sec:64px}
  .c4hero h1{font-size:34px}
  .c4hero .container{padding-top:64px;padding-bottom:60px}
  .mosaic{grid-template-columns:repeat(4,1fr)}
  .brick--lg-1{grid-column:1/5;grid-row:auto}
  .brick--sm-1{grid-column:1/3;grid-row:auto}
  .brick--sm-2{grid-column:3/5;grid-row:auto}
  .brick--lg-2{grid-column:1/5;grid-row:auto}
  .brick--lg-2 .brick__inner{grid-template-columns:1fr;align-items:stretch}
  .team-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .team-note{grid-template-columns:repeat(2,minmax(0,1fr))}
  .contact-wrap{grid-template-columns:1fr;gap:40px}
  .info-strip__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .searchbox,.hotline{display:none}
  .burger{display:flex}
  .channelbar{
    position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;
    background:#fff;box-shadow:-10px 0 30px rgba(16,42,67,.12);
    transform:translateX(102%);transition:transform .28s ease;
    z-index:80;padding:76px 20px 28px;overflow-y:auto;border-bottom:0;
  }
  .channelbar__inner{display:flex;flex-direction:column;align-items:stretch;gap:0;min-height:0}
  .channel{display:block;padding:14px 6px;border-bottom:1px solid var(--c-line);font-size:16px}
  .channel.is-active::after{display:none}
  .channel.is-active{background:var(--c-primary-50);border-radius:8px;padding-left:12px}
  .nav-close{
    display:flex;position:absolute;top:18px;right:18px;width:40px;height:40px;
    align-items:center;justify-content:center;border:1px solid var(--c-line);
    border-radius:10px;background:#fff;font-size:20px;color:var(--c-ink-2);line-height:1;
  }
  body.nav-open .channelbar{transform:translateX(0)}
  body.nav-open .nav-mask{opacity:1;visibility:visible}
  body.nav-open{overflow:hidden}
}
@media (max-width:768px){
  :root{--sec:46px}
  .container{padding:0 20px}
  .c4hero h1{font-size:29px}
  .c4hero__lead{font-size:16px}
  .c4hero .container{padding-top:50px;padding-bottom:46px}
  .sec-head h2,.contact-side h2,.cta-band h2{font-size:24px}
  .sec-head--split{flex-direction:column;align-items:flex-start;gap:14px}
  .brick__media{min-height:180px}
  .brick--lg-2 .brick__media--wide{min-height:200px}
  .mosaic{gap:18px}
  .team-grid,.team-note,.info-strip__grid{grid-template-columns:1fr}
  .contact-form{padding:24px 20px}
  .form-grid{grid-template-columns:1fr}
  .form-actions .btn{width:100%}
  .faq__q{font-size:16px;padding:18px 2px}
  .cta-band__inner{padding:44px 0}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:375px){
  .c4hero h1{font-size:26px}
  .logo__text small{display:none}
}