/* roulang page: index */
:root{
  --c-primary:#1D6A8B;
  --c-primary-d:#14506B;
  --c-primary-l:#E6F1F6;
  --c-secondary:#2E8B72;
  --c-secondary-l:#E7F4EF;
  --c-accent:#D98A3D;
  --c-bg:#F4F8FA;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF3F7;
  --c-line:#DCE6EC;
  --c-line-soft:#EAF1F5;
  --c-text:#17242E;
  --c-text-2:#4A5C68;
  --c-text-3:#7B8D99;
  --c-white:#FFFFFF;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"DIN Alternate","HarmonyOS Sans","SF Mono",ui-monospace,monospace;
  --r-card:14px;
  --r-cover:18px;
  --r-btn:10px;
  --r-input:10px;
  --r-chip:999px;
  --r-img:12px;
  --r-block:20px;
  --sh-1:0 1px 2px rgba(23,55,74,.06),0 2px 8px rgba(23,55,74,.05);
  --sh-2:0 4px 16px rgba(23,55,74,.08);
  --sh-3:0 10px 26px rgba(23,55,74,.12);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  text-align:left;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}

/* ---------- App Shell ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);
  background:var(--c-surface);border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;z-index:70;
}
.sidebar-head{
  height:72px;display:flex;align-items:center;padding:0 22px;
  border-bottom:1px solid var(--c-line-soft);flex:0 0 auto;
}
.logo{display:flex;flex-direction:column;gap:1px;line-height:1.35}
.logo:hover{text-decoration:none;opacity:.85}
.logo-main{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:.4px}
.logo-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.2px}
.side-nav{flex:1 1 auto;overflow-y:auto;padding:16px 12px}
.side-nav::-webkit-scrollbar{width:6px}
.side-nav::-webkit-scrollbar-thumb{background:#C7D6DE;border-radius:6px}
.nav-label{
  font-size:11px;letter-spacing:1.2px;color:var(--c-text-3);
  padding:10px 14px 6px;text-transform:uppercase;
}
.side-nav a{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;
  border-radius:10px;font-size:15px;font-weight:500;color:var(--c-text-2);
  margin-bottom:4px;position:relative;transition:background .2s ease,color .2s ease;
}
.side-nav a:hover{background:var(--c-surface-2);color:var(--c-primary);text-decoration:none}
.side-nav a.active{background:var(--c-primary-l);color:var(--c-primary);font-weight:600}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--c-primary);
}
.nav-ico{width:18px;height:18px;flex:0 0 auto;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.side-foot{flex:0 0 auto;padding:16px 20px 20px;border-top:1px solid var(--c-line-soft)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:500;text-decoration:none;transition:all .22s cubic-bezier(.2,.7,.3,1);white-space:nowrap}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--c-primary);color:var(--c-white);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-d);color:var(--c-white);box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-d)}
.btn-outline{border:1px solid var(--c-primary);color:var(--c-primary);background:transparent}
.btn-outline:hover{background:rgba(29,106,139,.08);color:var(--c-primary-d);border-color:var(--c-primary-d)}
.btn-ghost{background:var(--c-surface-2);color:var(--c-secondary)}
.btn-ghost:hover{background:#E0EBE6;color:var(--c-secondary);text-decoration:none}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none!important}
.side-foot .btn{width:100%}
.side-note{margin-top:12px;font-size:12px;line-height:1.6;color:var(--c-text-3)}

/* ---------- Mobile topbar ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:80;
  background:var(--c-surface);border-bottom:1px solid var(--c-line);
  align-items:center;padding:0 12px;gap:8px;
}
.burger{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:10px;color:var(--c-text-2)}
.burger:hover{background:var(--c-surface-2);color:var(--c-primary)}
.burger svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round}
.topbar-logo{font-size:16px;font-weight:700;color:var(--c-text)}
.topbar-cta{margin-left:auto;font-size:14px;font-weight:500;color:var(--c-primary);padding:8px 12px;border-radius:10px}
.topbar-cta:hover{background:var(--c-primary-l);text-decoration:none}
.mask{
  position:fixed;inset:0;background:rgba(23,36,46,.45);z-index:75;
  opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;
}
.mask.show{opacity:1;visibility:visible}

/* ---------- Layout ---------- */
.page{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 40px}
main{flex:1 1 auto}
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line-soft);border-bottom:1px solid var(--c-line-soft)}

/* ---------- Section headings ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-title{font-size:clamp(23px,2.4vw,30px);line-height:1.35;font-weight:600;color:var(--c-text);display:flex;align-items:center;gap:12px}
.sec-title::before{content:"";width:3px;height:18px;border-radius:3px;background:var(--c-primary);flex:0 0 auto}
.sec-desc{margin-top:10px;font-size:14px;color:var(--c-text-3);max-width:640px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--c-primary)}
.text-link:hover{text-decoration:underline;text-underline-offset:3px;color:var(--c-primary-d)}
.text-link::after{content:"→";transition:transform .22s ease}
.text-link:hover::after{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 76px;background:var(--c-surface);border-bottom:1px solid var(--c-line-soft)}
.hero-pattern{
  position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='120' viewBox='0 0 240 120'><g fill='none' stroke='%231D6A8B' stroke-width='1'><path d='M0 90 Q60 40 120 90 T240 90'/><path d='M0 60 Q60 10 120 60 T240 60'/><path d='M0 120 Q60 70 120 120 T240 120'/></g></svg>");
  background-size:420px auto;
}
.hero-grid{position:relative;display:grid;grid-template-columns:5.5fr 6.5fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;
  color:var(--c-secondary);background:var(--c-secondary-l);border-radius:var(--r-chip);
  padding:5px 14px;margin-bottom:20px;
}
.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--c-secondary)}
.hero h1{
  font-size:clamp(30px,3.6vw,42px);line-height:1.3;font-weight:700;color:var(--c-text);letter-spacing:-.2px;
}
.hero-sub{margin-top:18px;font-size:20px;line-height:1.7;color:var(--c-text-2);max-width:520px}
.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-stats{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:34px;padding-top:24px;border-top:1px solid var(--c-line-soft)}
.hero-stat{display:flex;align-items:baseline;gap:8px}
.hero-stat b{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--c-primary);letter-spacing:.5px}
.hero-stat span{font-size:13px;color:var(--c-text-3)}
.hero-sep{width:1px;height:20px;background:var(--c-line)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-cover);box-shadow:var(--sh-2);
  background:var(--c-surface-2);
}
.hero-badge{
  position:absolute;left:22px;bottom:22px;background:rgba(255,255,255,.94);
  border:1px solid var(--c-line);border-radius:12px;box-shadow:var(--sh-1);
  padding:12px 16px;display:flex;align-items:center;gap:12px;
}
.hero-badge .ico{
  width:32px;height:32px;border-radius:9px;background:var(--c-primary-l);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);flex:0 0 auto;
}
.hero-badge .ico svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.hero-badge p{font-size:13px;line-height:1.5;color:var(--c-text-2)}
.hero-badge strong{display:block;font-size:13px;color:var(--c-text)}

/* ---------- Metric strip ---------- */
.metrics{background:var(--c-surface-2);border-bottom:1px solid var(--c-line-soft)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--c-line-soft)}
.metric{background:var(--c-surface-2);padding:26px 24px}
.metric b{display:block;font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--c-primary);letter-spacing:.4px}
.metric span{display:block;margin-top:6px;font-size:13px;color:var(--c-text-3)}
.metric em{display:block;font-style:normal;margin-top:8px;font-size:13px;color:var(--c-text-2)}

/* ---------- Category tiles ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.cat-tile{
  position:relative;display:block;background:var(--c-surface);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;transition:all .22s cubic-bezier(.2,.7,.3,1);
  border:1px solid transparent;overflow:hidden;
}
.cat-tile:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--c-primary-l);background:var(--c-primary-l);text-decoration:none}
.cat-num{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--c-secondary);opacity:.45;letter-spacing:1px}
.cat-tile h3{margin-top:10px;font-size:19px;line-height:1.45;font-weight:600;color:var(--c-text)}
.cat-tile p{margin-top:8px;font-size:14px;color:var(--c-text-3);line-height:1.7}
.cat-tile-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:4px 12px;border-radius:var(--r-chip);background:var(--c-primary-l);color:var(--c-primary);font-weight:500}
.chip-green{background:var(--c-secondary-l);color:var(--c-secondary)}
.chip-accent{background:rgba(217,138,61,.13);color:#A9661F}
.cat-arrow{color:var(--c-primary);font-size:16px;transition:transform .22s ease}
.cat-tile:hover .cat-arrow{transform:translateX(4px)}

/* ---------- Featured ---------- */
.feat-grid{display:grid;grid-template-columns:5fr 7fr;gap:26px;align-items:stretch}
.feat-main{
  display:block;background:var(--c-surface);border-radius:var(--r-cover);box-shadow:var(--sh-1);
  overflow:hidden;transition:all .22s cubic-bezier(.2,.7,.3,1);border:1px solid transparent;
}
.feat-main:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--c-primary-l);text-decoration:none}
.feat-main img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--c-surface-2)}
.feat-main-body{padding:24px}
.feat-main-body h3{margin-top:12px;font-size:20px;line-height:1.45;font-weight:600;color:var(--c-text)}
.feat-main-body p{margin-top:10px;font-size:14px;color:var(--c-text-3);line-height:1.75}
.feat-side{display:flex;flex-direction:column;gap:12px}
.feat-row{
  display:flex;gap:16px;align-items:flex-start;background:var(--c-surface);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--sh-1);transition:all .22s cubic-bezier(.2,.7,.3,1);
  border:1px solid transparent;flex:1;
}
.feat-row:hover{background:var(--c-surface-2);text-decoration:none;transform:translateY(-2px);box-shadow:var(--sh-2)}
.feat-row .idx{font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--c-secondary);opacity:.7;padding-top:3px}
.feat-row h3{font-size:16px;font-weight:600;line-height:1.5;color:var(--c-text)}
.feat-row .meta{margin-top:8px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);flex-wrap:wrap}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--c-line);display:inline-block}

/* ---------- Capability rows ---------- */
.cap-row{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;padding:40px 0}
.cap-row + .cap-row{border-top:1px solid var(--c-line-soft)}
.cap-row:nth-child(even) .cap-media{order:2}
.cap-row:nth-child(even) .cap-txt{order:1}
.cap-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-1);background:var(--c-surface-2)}
.cap-txt h3{font-size:22px;line-height:1.45;font-weight:600;color:var(--c-text);display:flex;align-items:center;gap:12px}
.cap-txt h3::before{content:"";width:3px;height:18px;border-radius:3px;background:var(--c-primary);flex:0 0 auto}
.cap-txt p{margin-top:14px;font-size:15px;line-height:1.9;color:var(--c-text-2)}
.cap-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.cap-list li{position:relative;padding-left:20px;font-size:14px;color:var(--c-text-2)}
.cap-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--c-secondary);opacity:.75}
.cap-txt .text-link{margin-top:20px}

/* ---------- News / CMS ---------- */
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.news-card{
  display:flex;gap:18px;align-items:flex-start;background:var(--c-surface);
  border-radius:var(--r-card);box-shadow:var(--sh-1);padding:20px;
  border:1px solid transparent;transition:all .22s cubic-bezier(.2,.7,.3,1);
}
.news-card:hover{box-shadow:var(--sh-3);border-color:var(--c-primary-l);transform:translateY(-3px);text-decoration:none}
.news-thumb{width:96px;height:72px;flex:0 0 auto;border-radius:var(--r-img);overflow:hidden;background:var(--c-surface-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{flex:1 1 auto;min-width:0}
.news-body h3{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-body h3{color:var(--c-primary)}
.news-body p{
  margin-top:8px;font-size:14px;color:var(--c-text-3);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:10px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);flex-wrap:wrap}
.news-meta .t{font-family:var(--font-num);letter-spacing:.3px}
.empty-state{
  grid-column:1 / -1;text-align:center;background:var(--c-primary-l);border-radius:var(--r-block);
  padding:48px 24px;color:var(--c-text-2);
}
.empty-state svg{width:48px;height:48px;margin:0 auto 14px;stroke:var(--c-primary);fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round;opacity:.7}
.empty-state p{font-size:15px;margin-bottom:18px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--c-surface);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;border:1px solid transparent;transition:border-color .2s ease}
.faq-item.open{border-color:var(--c-primary-l)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 24px;min-height:56px;text-align:left;font-size:16px;font-weight:600;color:var(--c-text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary)}
.faq-sign{
  width:24px;height:24px;flex:0 0 auto;border:1.5px solid var(--c-primary);border-radius:8px;
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);
  font-size:15px;line-height:1;font-weight:600;transition:transform .2s ease;
}
.faq-item.open .faq-sign{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-item.open .faq-a{max-height:320px}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2)}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--c-primary-l);border-radius:var(--r-block);padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-60px;width:280px;height:180px;opacity:.5;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='280' height='180'><g fill='none' stroke='%231D6A8B' stroke-width='1' opacity='0.25'><path d='M0 130 Q70 60 140 130 T280 130'/><path d='M0 90 Q70 20 140 90 T280 90'/></g></svg>");
  pointer-events:none;
}
.cta-band h2{font-size:22px;font-weight:600;line-height:1.4;color:var(--c-text)}
.cta-band p{margin-top:8px;font-size:14px;color:var(--c-text-2);max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- Footer ---------- */
.site-foot{background:var(--c-surface-2);border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand .logo-main{font-size:18px}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--c-text-2);max-width:300px}
.foot-col h4{font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:14px;color:var(--c-text-2)}
.foot-col a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.foot-col li{font-size:14px;color:var(--c-text-2)}
.sub-form{margin-top:14px;display:flex;gap:10px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 160px;height:46px;border:1px solid var(--c-line);border-radius:var(--r-input);
  padding:0 14px;font-size:14px;font-family:var(--font-sans);background:var(--c-surface);color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:var(--c-text-3)}
.sub-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,106,139,.15)}
.foot-bottom{
  margin-top:48px;border-top:1px solid var(--c-line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.foot-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.foot-bottom a{font-size:13px;color:var(--c-text-3)}
.foot-bottom a:hover{color:var(--c-primary)}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 32px}
  .cap-row{gap:40px}
}
@media (max-width:1023px){
  .sidebar{
    transform:translateX(-100%);transition:transform .26s ease;width:280px;
    top:0;padding-top:0;
  }
  .sidebar.open{transform:translateX(0)}
  .topbar{display:flex}
  .page{margin-left:0;padding-top:60px}
  .container{padding:0 28px}
  .section{padding:64px 0}
  .hero{padding:52px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:-1}
  .hero-sub{max-width:none}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:1fr 1fr}
  .feat-grid{grid-template-columns:1fr}
  .cap-row{grid-template-columns:1fr;gap:26px;padding:32px 0}
  .cap-row:nth-child(even) .cap-media{order:1}
  .cap-row:nth-child(even) .cap-txt{order:2}
  .news-list{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 18px}
  .section{padding:48px 0}
  .hero{padding:40px 0 48px}
  .hero h1{font-size:26px}
  .hero-sub{font-size:17px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-stats{gap:12px}
  .hero-sep{display:none}
  .hero-stat{width:calc(50% - 6px)}
  .hero-badge{left:12px;bottom:12px;padding:10px 12px}
  .metrics-grid{grid-template-columns:1fr 1fr}
  .metric{padding:20px 16px}
  .cat-grid{grid-template-columns:1fr}
  .sec-head{margin-bottom:24px;align-items:flex-start}
  .feat-row{padding:16px}
  .news-card{flex-direction:column}
  .news-thumb{width:100%;height:150px}
  .cta-band{padding:26px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
  .sec-title{font-size:21px}
  .cap-txt h3{font-size:19px}
  .cta-band h2{font-size:19px}
}
@media (max-width:479px){
  .hero-stat{width:100%}
  .btn{font-size:14px;padding:0 16px}
  .metrics-grid{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --c-primary:#1D6A8B;
  --c-primary-d:#14506B;
  --c-primary-l:#E6F1F6;
  --c-secondary:#2E8B72;
  --c-secondary-l:#E7F4EF;
  --c-accent:#D98A3D;
  --c-bg:#F4F8FA;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF3F7;
  --c-line:#DCE6EC;
  --c-line-soft:#EAF1F5;
  --c-text:#17242E;
  --c-text-2:#4A5C68;
  --c-text-3:#7B8D99;
  --r-card:14px;
  --r-lg:18px;
  --r-btn:10px;
  --r-pill:999px;
  --r-block:20px;
  --sh-1:0 1px 2px rgba(23,55,74,.06),0 2px 8px rgba(23,55,74,.05);
  --sh-2:0 4px 16px rgba(23,55,74,.08);
  --sh-3:0 10px 26px rgba(23,55,74,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:240px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"DIN Alternate","HarmonyOS Sans","SF Mono",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  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 .2s var(--ease)}
a:hover{color:var(--c-primary-d)}
button,input{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-text);text-align:left}
p{margin:0 0 1.15em}
ul,ol{margin:0}
::selection{background:var(--c-primary-l);color:var(--c-primary-d)}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 40px}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
  background:var(--c-surface);border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;z-index:60;
}
.side-brand{
  display:flex;flex-direction:column;justify-content:center;
  height:72px;padding:0 22px;border-bottom:1px solid var(--c-line-soft);flex:0 0 auto;
}
.logo{display:block;text-decoration:none;transition:opacity .2s var(--ease)}
.logo:hover{opacity:.85}
.logo-main{display:block;font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:.5px;line-height:1.3}
.logo-sub{display:block;font-size:11px;color:var(--c-text-3);margin-top:3px;line-height:1.4}
.side-nav{padding:18px 14px;display:flex;flex-direction:column;gap:4px;overflow-y:auto;flex:1 1 auto}
.side-nav::-webkit-scrollbar{width:6px}
.side-nav::-webkit-scrollbar-thumb{background:#C7D6DE;border-radius:3px}
.nav-label{font-size:12px;color:var(--c-text-3);letter-spacing:1px;padding:0 12px 10px}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;color:var(--c-text-2);text-decoration:none;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-nav a:hover{background:var(--c-surface-2);color:var(--c-primary)}
.side-nav a.active{background:var(--c-primary-l);color:var(--c-primary);font-weight:600}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;background:var(--c-primary);
}
.side-nav a:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.nav-ico{
  width:18px;height:18px;flex:0 0 18px;fill:none;stroke:currentColor;
  stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
}
.side-foot{padding:16px 14px 18px;border-top:1px solid var(--c-line-soft);flex:0 0 auto}
.side-foot .btn{width:100%}
.side-note{font-size:12px;color:var(--c-text-3);line-height:1.6;margin:10px 0 0}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;
  background:var(--c-surface);border-bottom:1px solid var(--c-line);
  align-items:center;gap:10px;padding:0 14px;z-index:70;
}
.burger{
  width:44px;height:44px;border:0;background:transparent;border-radius:var(--r-btn);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-text-2);transition:background .2s var(--ease)}
.burger:hover span{background:var(--c-primary)}
.burger:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.mobile-bar .logo-main{font-size:16px}
.mobile-bar .logo-sub{display:none}
.mb-cta{margin-left:auto;font-size:14px;font-weight:600;color:var(--c-primary);text-decoration:none;padding:8px 4px}
.mask{
  position:fixed;inset:0;background:rgba(23,36,46,.45);z-index:55;
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
body.nav-open .mask{opacity:1;visibility:visible}

/* ---------- 主框架 ---------- */
.shell-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.page{flex:1 1 auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;line-height:1;cursor:pointer;text-decoration:none;
  border:1px solid transparent;transition:background .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-d)}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-outline:hover{background:rgba(29,106,139,.08);color:var(--c-primary-d)}
.btn-ghost{background:var(--c-surface-2);color:var(--c-secondary)}
.btn-ghost:hover{background:#DFEBE6;color:#226A57}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;padding:38px 0 34px;overflow:hidden;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%);
  border-bottom:1px solid var(--c-line-soft);
}
.article-hero::after{
  content:"";position:absolute;right:-30px;top:-20px;width:420px;height:300px;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.06;border-radius:24px;pointer-events:none;
}
.crumbs{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-text-3);margin-bottom:18px;
}
.crumbs a{color:var(--c-text-3);text-decoration:none}
.crumbs a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.crumbs .sep{color:#B7C6CF}
.crumbs .cur{color:var(--c-text-2)}
.article-title{
  position:relative;z-index:1;
  font-size:clamp(26px,3.2vw,38px);line-height:1.32;font-weight:700;
  color:var(--c-text);margin:0 0 18px;max-width:900px;
}
.article-meta{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;color:var(--c-text-3);
}
.article-meta .num{font-family:var(--font-num);letter-spacing:.4px}
.meta-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-primary-l);color:var(--c-primary);font-size:13px;font-weight:500;
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#C3D2DA;display:inline-block}

/* ---------- 正文 ---------- */
.article-wrap{padding:48px 0 0}
.article-card{
  max-width:800px;margin:0 auto;background:var(--c-surface);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:44px;font-size:17px;line-height:1.95;color:var(--c-text);
}
.article-content > *:first-child{margin-top:0}
.article-content h2{
  position:relative;font-size:clamp(21px,2.2vw,26px);font-weight:600;line-height:1.4;
  margin:48px 0 18px;padding-left:14px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.35em;width:3px;height:18px;
  border-radius:2px;background:var(--c-primary);
}
.article-content h3{font-size:19px;font-weight:600;line-height:1.45;margin:32px 0 12px}
.article-content h4{font-size:16px;font-weight:600;margin:24px 0 10px}
.article-content p{margin:0 0 1.15em}
.article-content ul{list-style:none;padding-left:1.2em;margin:0 0 1.15em}
.article-content ul li{position:relative;margin-bottom:.5em}
.article-content ul li::before{
  content:"";position:absolute;left:-1.1em;top:.72em;width:6px;height:6px;
  border-radius:50%;background:var(--c-secondary);
}
.article-content ol{list-style:decimal;padding-left:1.5em;margin:0 0 1.15em}
.article-content ol li{margin-bottom:.5em}
.article-content ol li::marker{color:var(--c-secondary);font-weight:600}
.article-content blockquote{
  margin:0 0 1.3em;padding:16px 20px;background:var(--c-primary-l);
  border-left:3px solid var(--c-primary);border-radius:0 10px 10px 0;color:var(--c-text-2);
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{max-width:100%;height:auto;margin:24px auto;border-radius:12px;box-shadow:var(--sh-1)}
.article-content table{width:100%;border-collapse:collapse;margin:0 0 1.4em;font-size:15px}
.article-content th,.article-content td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.article-content th{background:var(--c-primary-l);color:var(--c-primary-d);font-weight:600}
.article-content tbody tr:nth-child(even){background:var(--c-surface-2)}
.article-content a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--c-primary-d)}
.article-content hr{border:0;border-top:1px solid var(--c-line);margin:32px 0}
.article-content strong{font-weight:600;color:var(--c-text)}

/* ---------- 空态 ---------- */
.empty-state{text-align:center;padding:32px 10px 20px}
.empty-ico{
  width:48px;height:48px;margin:0 auto 18px;fill:none;stroke:var(--c-primary);
  stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;
}
.empty-state h2{font-size:22px;font-weight:600;margin-bottom:10px}
.empty-state p{color:var(--c-text-2);font-size:15px;margin-bottom:22px}

/* ---------- 文末操作 ---------- */
.article-foot{
  max-width:800px;margin:24px auto 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;background:var(--c-primary-l);color:var(--c-primary);
}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.actions .btn{height:40px;padding:0 16px;font-size:14px}
.ico{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap}
.sec-title{position:relative;font-size:clamp(20px,2.1vw,24px);font-weight:600;line-height:1.4;padding-left:14px}
.sec-title::before{
  content:"";position:absolute;left:0;top:.32em;width:3px;height:18px;
  border-radius:2px;background:var(--c-primary);
}
.sec-desc{font-size:14px;color:var(--c-text-3);margin:10px 0 0;max-width:560px}

/* ---------- 相关栏目 ---------- */
.related{padding:72px 0 0}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:28px}
.rel-card{
  display:flex;flex-direction:column;background:var(--c-surface);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;text-decoration:none;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.rel-card:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px}
.rel-thumb{aspect-ratio:16/10;background:var(--c-surface-2);overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.45;color:var(--c-text);margin-bottom:8px;transition:color .2s var(--ease)}
.rel-card:hover .rel-body h3{color:var(--c-primary)}
.rel-body p{font-size:14px;color:var(--c-text-3);line-height:1.7;margin:0 0 16px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--c-primary);margin-top:auto}
.link-more .ico{transition:transform .2s var(--ease)}
.rel-card:hover .link-more .ico{transform:translateX(3px)}

/* ---------- CTA ---------- */
.cta-band{padding:72px 0 0}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:var(--c-surface-2);border-radius:var(--r-block);padding:32px 36px;
}
.cta-inner h2{font-size:21px;font-weight:600;margin-bottom:8px}
.cta-inner p{margin:0;font-size:14px;color:var(--c-text-2);line-height:1.7}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--c-surface-2);border-top:1px solid var(--c-line);margin-top:80px;padding:56px 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px}
.foot-brand .logo-main{font-size:18px}
.foot-brand p{font-size:14px;color:var(--c-text-2);margin:14px 0 0;line-height:1.8;max-width:320px}
.foot-col h4{font-size:15px;font-weight:600;margin-bottom:14px}
.foot-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:14px;color:var(--c-text-2);text-decoration:none}
.foot-col a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.sub-form{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 150px;min-width:140px;height:42px;padding:0 12px;border:1px solid var(--c-line);
  border-radius:var(--r-btn);background:#fff;font-size:14px;color:var(--c-text);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form input::placeholder{color:var(--c-text-3)}
.sub-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,106,139,.15)}
.sub-form .btn{height:42px;padding:0 16px;font-size:14px}
.foot-bottom{
  border-top:1px solid var(--c-line);padding:18px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.foot-bottom .links{display:flex;gap:16px;flex-wrap:wrap}
.foot-bottom a{color:var(--c-text-3);text-decoration:none}
.foot-bottom a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .sidebar{
    width:280px;transform:translateX(-100%);
    transition:transform .26s var(--ease);box-shadow:var(--sh-3);
  }
  body.nav-open .sidebar{transform:translateX(0)}
  body.nav-open{overflow:hidden}
  .shell-main{margin-left:0;padding-top:60px}
  .mobile-bar{display:flex}
  .container{padding:0 28px}
  .article-card{padding:34px 28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .article-hero{padding:26px 0 24px}
  .article-hero::after{display:none}
  .article-title{font-size:23px;margin-bottom:14px}
  .article-wrap{padding:32px 0 0}
  .article-card{padding:24px 20px;border-radius:12px;font-size:16px;line-height:1.9}
  .article-content h2{margin:36px 0 14px}
  .rel-grid{grid-template-columns:1fr;gap:18px}
  .related{padding:48px 0 0}
  .cta-band{padding:48px 0 0}
  .cta-inner{padding:24px 20px;border-radius:16px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .site-foot{margin-top:56px;padding-top:40px}
}
@media (max-width:520px){
  .article-title{font-size:21px}
  .btn{width:100%;padding:0 16px}
  .actions{width:100%;flex-direction:column}
  .actions .btn{width:100%}
  .cta-actions{width:100%;flex-direction:column}
  .article-meta{gap:10px}
  .sub-form .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --c-primary:#1D6A8B;
  --c-primary-d:#14506B;
  --c-primary-l:#E6F1F6;
  --c-secondary:#2E8B72;
  --c-secondary-l:#E7F4EF;
  --c-accent:#D98A3D;
  --c-bg:#F4F8FA;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF3F7;
  --c-line:#DCE6EC;
  --c-line-soft:#EAF1F5;
  --c-text:#17242E;
  --c-text-2:#4A5C68;
  --c-text-3:#7B8D99;
  --c-invert:#FFFFFF;
  --r-card:14px;
  --r-lg:18px;
  --r-btn:10px;
  --r-pill:999px;
  --r-block:20px;
  --sh1:0 1px 2px rgba(23,55,74,.06),0 2px 8px rgba(23,55,74,.05);
  --sh2:0 4px 16px rgba(23,55,74,.08);
  --sh3:0 10px 26px rgba(23,55,74,.12);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"DIN Alternate","HarmonyOS Sans","SF Mono",ui-monospace,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
  --side-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px;}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:600;color:var(--c-text);}
h1{font-size:clamp(30px,3.6vw,42px);line-height:1.3;font-weight:700;}
h2{font-size:clamp(23px,2.4vw,30px);}
h3{font-size:19px;line-height:1.45;}
h4{font-size:16px;line-height:1.5;}
p{margin:0 0 1.15em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 40px;}

/* ===== 左侧导航 ===== */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--side-w);
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  padding:0 14px 18px;
  z-index:60;
}
.side-brand{
  display:flex;
  align-items:center;
  height:72px;
  padding-left:8px;
  flex:0 0 auto;
}
.side-brand .logo{display:flex;flex-direction:column;gap:2px;transition:opacity .2s var(--ease);}
.side-brand .logo:hover{opacity:.85;text-decoration:none;}
.logo-main{font-size:19px;font-weight:700;color:var(--c-text);letter-spacing:.5px;}
.logo-sub{font-size:11px;color:var(--c-text-3);line-height:1.4;}
.nav-label{
  font-size:12px;
  color:var(--c-text-3);
  letter-spacing:1px;
  padding:6px 12px 8px;
  flex:0 0 auto;
}
.side-nav a.nav-item,
.side-nav .side-nav-list a{
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 14px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:500;
  color:var(--c-text-2);
  position:relative;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-nav-list{display:flex;flex-direction:column;gap:4px;overflow-y:auto;flex:1 1 auto;padding-bottom:8px;}
.side-nav-list::-webkit-scrollbar{width:6px;}
.side-nav-list::-webkit-scrollbar-thumb{background:#C7D6DE;border-radius:6px;}
.side-nav-list a:hover{background:var(--c-surface-2);color:var(--c-primary);text-decoration:none;}
.side-nav-list a.active{
  background:var(--c-primary-l);
  color:var(--c-primary);
  font-weight:600;
}
.side-nav-list a.active::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:3px;
  border-radius:3px;
  background:var(--c-primary);
}
.nav-ico{width:18px;height:18px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.side-foot{flex:0 0 auto;padding:14px 6px 0;border-top:1px solid var(--c-line-soft);}
.side-note{font-size:12px;color:var(--c-text-3);line-height:1.6;margin:10px 2px 0;}

/* ===== 移动端顶栏 ===== */
.topbar{
  display:none;
  position:sticky;
  top:0;
  z-index:70;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  height:60px;
  align-items:center;
  padding:0 14px;
  gap:10px;
}
.menu-btn{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:var(--r-btn);
  color:var(--c-text-2);
}
.menu-btn:hover{background:var(--c-surface-2);color:var(--c-primary);}
.menu-btn svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;}
.topbar .logo-main{font-size:17px;}
.topbar-brand{display:flex;flex-direction:column;justify-content:center;flex:1 1 auto;min-width:0;}
.topbar-brand .logo-sub{font-size:10px;}
.topbar-cta{font-size:14px;font-weight:600;color:var(--c-primary);white-space:nowrap;}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(23,36,46,.45);
  opacity:0;visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
  z-index:80;
}
.drawer-mask.show{opacity:1;visibility:visible;}

/* ===== 主区域 ===== */
.site-main{margin-left:var(--side-w);}
.page{padding:48px 0 88px;}
.crumb{font-size:13px;color:var(--c-text-3);margin-bottom:18px;}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{margin:0 8px;}
.crumb .cur{color:var(--c-text-2);}

/* Hero */
.hero{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
  padding:36px 0 16px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-secondary);
  background:var(--c-secondary-l);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:18px;
}
.hero h1{margin-bottom:18px;}
.hero-sub{
  font-size:18px;
  line-height:1.7;
  color:var(--c-text-2);
  max-width:560px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  font-size:13px;
  color:var(--c-text-3);
  font-family:var(--font-num);
}
.hero-tags b{font-size:22px;color:var(--c-primary);font-weight:700;margin-right:4px;}
.hero-tags .divider{width:1px;height:16px;background:var(--c-line);}
.hero-media{position:relative;}
.hero-media::before{
  content:"";
  position:absolute;
  inset:-18px -18px auto auto;
  width:180px;height:180px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cpath d='M0 60c20 0 20-20 40-20s20 20 40 20 20-20 40-20' fill='none' stroke='%231D6A8B' stroke-width='1'/%3E%3Cpath d='M0 84c20 0 20-20 40-20s20 20 40 20 20-20 40-20' fill='none' stroke='%232E8B72' stroke-width='1'/%3E%3C/svg%3E");
  opacity:.5;
  z-index:0;
}
.hero-media img{
  position:relative;
  z-index:1;
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--r-lg);
  box-shadow:var(--sh2);
  background:var(--c-surface-2);
}

/* 区块 */
.section{padding:56px 0 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:26px;
}
.sec-title{
  position:relative;
  padding-left:14px;
  margin-bottom:8px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;top:.28em;
  width:3px;height:18px;
  border-radius:2px;
  background:var(--c-primary);
}
.sec-desc{font-size:14px;color:var(--c-text-3);max-width:640px;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
}
.link-more svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.8;transition:transform .2s var(--ease);}
.link-more:hover svg{transform:translateX(3px);}

/* 胶囊筛选 */
.filters{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  padding:4px 0 26px;
  overflow-x:auto;
  scrollbar-width:none;
}
.filters::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:var(--c-surface);
  font-size:14px;
  color:var(--c-text-2);
  white-space:nowrap;
  transition:all .2s var(--ease);
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);text-decoration:none;}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:var(--c-invert);font-weight:500;}

/* 双列图文卡 */
.grid-2{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.card{
  background:var(--c-surface);
  border-radius:var(--r-card);
  box-shadow:var(--sh1);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  border:1px solid transparent;
  height:100%;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:var(--c-primary-l);}
.card-media{position:relative;display:block;background:var(--c-surface-2);}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.card-media .badge{position:absolute;left:12px;top:12px;}
.card-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-body h3{margin-bottom:10px;}
.card-body h3 a{color:var(--c-text);}
.card-body h3 a:hover{color:var(--c-primary);text-decoration:none;}
.card-sum{font-size:14px;line-height:1.75;color:var(--c-text-2);margin-bottom:18px;flex:1 1 auto;}
.card-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px 12px;
  font-size:13px;
  color:var(--c-text-3);
  border-top:1px solid var(--c-line-soft);
  padding-top:14px;
}
.card-meta .num{font-family:var(--font-num);}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:13px;
  line-height:1;
  background:var(--c-primary-l);
  color:var(--c-primary);
  font-weight:500;
  white-space:nowrap;
}
.badge-soft{background:var(--c-secondary-l);color:var(--c-secondary);}
.badge-accent{background:rgba(217,138,61,.14);color:#A9662A;}

/* 数据条 */
.stat-row{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-block);
  overflow:hidden;
}
.stat{padding:24px 22px;border-right:1px solid var(--c-line-soft);}
.stat:last-child{border-right:0;}
.stat-num{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--c-primary);line-height:1.2;}
.stat-label{font-size:13px;color:var(--c-text-3);margin-top:6px;}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step{
  background:var(--c-surface);
  border-radius:var(--r-card);
  padding:24px 22px;
  box-shadow:var(--sh1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh3);}
.step-num{
  font-family:var(--font-num);
  font-size:22px;
  font-weight:700;
  color:var(--c-secondary);
  opacity:.85;
  margin-bottom:12px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--c-text-2);line-height:1.75;margin:0;}

/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;
  gap:16px;
  background:var(--c-surface);
  border-radius:var(--r-card);
  padding:18px;
  box-shadow:var(--sh1);
  transition:background .2s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.rel-card:hover{background:var(--c-surface-2);transform:translateY(-3px);box-shadow:var(--sh3);text-decoration:none;}
.rel-card img{
  width:88px;height:88px;flex:0 0 auto;
  object-fit:cover;border-radius:12px;background:var(--c-surface-2);
}
.rel-card h3{font-size:16px;margin-bottom:6px;color:var(--c-text);}
.rel-card p{font-size:13px;color:var(--c-text-3);margin:0;line-height:1.7;}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--c-surface);
  border-radius:var(--r-card);
  box-shadow:var(--sh1);
  overflow:hidden;
  border:1px solid transparent;
  transition:border-color .2s var(--ease);
}
.faq-item.open{border-color:var(--c-primary-l);}
.faq-q{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:16px 22px;
  font-size:16px;
  font-weight:600;
  text-align:left;
  color:var(--c-text);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-ico{
  flex:0 0 auto;
  width:26px;height:26px;
  border:1.5px solid var(--c-primary);
  border-radius:8px;
  position:relative;
  transition:background .2s var(--ease);
}
.faq-ico::before,.faq-ico::after{
  content:"";
  position:absolute;
  background:var(--c-primary);
  border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-ico::before{left:6px;right:6px;top:11.5px;height:1.5px;}
.faq-ico::after{top:6px;bottom:6px;left:11.5px;width:1.5px;}
.faq-item.open .faq-ico{background:var(--c-primary-l);}
.faq-item.open .faq-ico::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease);}
.faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);}
.faq-a-inner p:last-child{margin-bottom:0;}

/* CTA */
.cta-band{
  margin-top:56px;
  background:var(--c-primary-l);
  border-radius:var(--r-block);
  padding:32px 36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:23px;margin-bottom:8px;}
.cta-band p{font-size:14px;color:var(--c-text-2);margin:0;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:500;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .2s var(--ease);
  white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--c-primary);color:var(--c-invert);}
.btn-primary:hover{background:var(--c-primary-d);color:var(--c-invert);box-shadow:var(--sh2);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-d);}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:rgba(29,106,139,.08);color:var(--c-primary-d);}
.btn-ghost{background:var(--c-surface);color:var(--c-secondary);}
.btn-ghost:hover{background:var(--c-secondary-l);color:var(--c-secondary);}
.btn-block{width:100%;}
.btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.btn[disabled]{opacity:.5;cursor:not-allowed;}

/* 页脚 */
.site-foot{
  margin-left:var(--side-w);
  background:var(--c-surface-2);
  border-top:1px solid var(--c-line);
  padding:56px 0 0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'%3E%3Cpath d='M0 80c26 0 26-24 52-24s26 24 52 24 26-24 52-24' fill='none' stroke='%231D6A8B' stroke-width='1'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 24px top 24px;
  background-size:260px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:36px;
  padding-bottom:40px;
}
.foot-brand .logo{display:inline-flex;flex-direction:column;gap:2px;margin-bottom:14px;}
.foot-brand p{font-size:14px;color:var(--c-text-2);line-height:1.8;max-width:320px;}
.foot-col h4{font-size:15px;margin-bottom:14px;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col a{font-size:14px;color:var(--c-text-2);}
.foot-col a:hover{color:var(--c-primary);}
.sub-form{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap;}
.sub-form input{
  flex:1 1 160px;
  height:46px;
  padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:var(--c-surface);
  font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form input::placeholder{color:var(--c-text-3);}
.sub-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,106,139,.15);}
.foot-bottom{
  border-top:1px solid var(--c-line);
  padding:18px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--c-text-3);
}
.foot-bottom .links{display:flex;flex-wrap:wrap;gap:8px 16px;}
.foot-bottom .links a{color:var(--c-text-3);}
.foot-bottom .links a:hover{color:var(--c-primary);}

/* 响应式 */
@media (max-width:1280px){
  .hero{gap:36px;}
}
@media (max-width:1023px){
  .side-nav{
    transform:translateX(-100%);
    transition:transform .26s var(--ease);
    width:280px;
    box-shadow:var(--sh3);
  }
  .side-nav.open{transform:translateX(0);}
  .topbar{display:flex;}
  .site-main{margin-left:0;}
  .site-foot{margin-left:0;}
  .container{padding:0 28px;}
  .page{padding:32px 0 64px;}
  .hero{grid-template-columns:1fr;gap:26px;padding-top:12px;}
  .hero-media{order:2;}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat:nth-child(2){border-right:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--c-line-soft);}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rel-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .section{padding-top:48px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 18px;}
  .grid-2{grid-template-columns:1fr;}
  .hero-sub{font-size:16.5px;}
  .filters{flex-wrap:nowrap;padding-bottom:20px;}
  .cta-band{padding:26px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:520px){
  h1{font-size:28px;}
  .stat-row{grid-template-columns:1fr;}
  .stat{border-right:0;border-bottom:1px solid var(--c-line-soft);}
  .stat:last-child{border-bottom:0;}
  .steps{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .rel-card{flex-direction:column;}
  .rel-card img{width:100%;height:150px;}
  .hero-actions .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1D6A8B;
  --c-primary-d:#14506B;
  --c-primary-l:#E6F1F6;
  --c-secondary:#2E8B72;
  --c-secondary-l:#E7F4EF;
  --c-accent:#D98A3D;
  --c-bg:#F4F8FA;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF3F7;
  --c-line:#DCE6EC;
  --c-line-soft:#EAF1F5;
  --c-text-1:#17242E;
  --c-text-2:#4A5C68;
  --c-text-3:#7B8D99;
  --c-text-inv:#FFFFFF;
  --radius-card:14px;
  --radius-lg:18px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-block:20px;
  --sh-1:0 1px 2px rgba(23,55,74,.06),0 2px 8px rgba(23,55,74,.05);
  --sh-2:0 4px 16px rgba(23,55,74,.08);
  --sh-3:0 10px 26px rgba(23,55,74,.12);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"DIN Alternate","HarmonyOS Sans","SF Mono",ui-monospace,monospace;
  --sidebar-w:244px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text-1);
  background:var(--c-bg);
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{margin:0;line-height:1.4;}
p{margin:0 0 1.15em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 40px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background .22s cubic-bezier(.2,.7,.3,1),color .22s,border-color .22s,box-shadow .22s,transform .22s;
}
.btn-primary{background:var(--c-primary);color:var(--c-text-inv);}
.btn-primary:hover{background:var(--c-primary-d);color:var(--c-text-inv);box-shadow:var(--sh-2);transform:translateY(-1px);text-decoration:none;}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:rgba(29,106,139,.08);color:var(--c-primary);text-decoration:none;}
.btn-ghost{background:var(--c-secondary-l);color:var(--c-secondary);}
.btn-ghost:hover{background:#D7EDE5;color:var(--c-secondary);text-decoration:none;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-block{width:100%;}

/* 侧栏导航 */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--c-surface);border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;z-index:80;
}
.sidebar-head{height:72px;display:flex;align-items:center;padding:0 22px;flex:0 0 auto;}
.logo{display:flex;flex-direction:column;gap:2px;text-decoration:none;}
.logo:hover{text-decoration:none;opacity:.85;}
.logo-main{font-size:17px;font-weight:700;color:var(--c-text-1);letter-spacing:.01em;line-height:1.3;}
.logo-sub{font-size:12px;color:var(--c-text-3);line-height:1.4;}
.sidebar-scroll{flex:1 1 auto;overflow-y:auto;padding:4px 14px 16px;}
.sidebar-scroll::-webkit-scrollbar{width:6px;}
.sidebar-scroll::-webkit-scrollbar-thumb{background:#C7D6DE;border-radius:3px;}
.side-nav{display:flex;flex-direction:column;gap:4px;}
.nav-label{font-size:12px;color:var(--c-text-3);letter-spacing:.1em;padding:12px 14px 8px;}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:44px;padding:0 14px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;color:var(--c-text-2);text-decoration:none;
  transition:background .2s ease,color .2s ease;
}
.side-nav a:hover{background:var(--c-surface-2);color:var(--c-primary);text-decoration:none;}
.side-nav a.active{background:rgba(29,106,139,.1);color:var(--c-primary);font-weight:600;}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:2px;background:var(--c-primary);
}
.nav-ico{
  width:18px;height:18px;flex:0 0 auto;fill:none;stroke:currentColor;
  stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
}
.sidebar-foot{flex:0 0 auto;padding:16px 18px 20px;border-top:1px solid var(--c-line-soft);}
.side-meta{font-size:12px;color:var(--c-text-3);margin:10px 0 0;line-height:1.6;}

/* 移动端顶栏 */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;
  background:var(--c-surface);border-bottom:1px solid var(--c-line);
  align-items:center;justify-content:space-between;padding:0 12px;z-index:70;
}
.hamburger{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:none;border:0;border-radius:var(--radius-btn);cursor:pointer;
}
.hamburger span{display:block;width:20px;height:1.8px;background:var(--c-text-1);border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:20px;height:1.8px;background:var(--c-text-1);border-radius:2px;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.hamburger:hover{background:var(--c-surface-2);}
.topbar .logo-main{font-size:16px;}
.topbar-cta{font-size:14px;font-weight:600;padding:8px 6px;}
.backdrop{
  position:fixed;inset:0;background:rgba(23,36,46,.45);
  opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;z-index:75;
}
.backdrop.show{opacity:1;visibility:visible;}

/* 主内容 */
.main{margin-left:var(--sidebar-w);min-height:100vh;padding-bottom:0;}

/* 面包屑 */
.crumb{font-size:13px;color:var(--c-text-3);margin-bottom:18px;}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb span{color:var(--c-text-2);}
.crumb i{font-style:normal;padding:0 6px;color:#B7C6D0;}

/* Hero */
.page-hero{padding:56px 0 0;}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:48px;align-items:center;}
.hero-copy h1{
  font-size:clamp(30px,3.6vw,42px);font-weight:700;line-height:1.3;
  letter-spacing:-.01em;margin-bottom:16px;
}
.hero-sub{font-size:19px;line-height:1.7;color:var(--c-text-2);max-width:30em;margin-bottom:26px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px;align-items:baseline;}
.hero-metrics li{font-size:13px;color:var(--c-text-3);display:flex;align-items:baseline;gap:8px;}
.hero-metrics li + li{padding-left:22px;border-left:1px solid var(--c-line);}
.hero-metrics .num{font-family:var(--font-num);font-size:20px;font-weight:600;color:var(--c-primary);}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--sh-2);background:var(--c-surface-2);
}
.hero-media::after{
  content:"";position:absolute;right:-8px;bottom:-10px;width:150px;height:96px;
  border-radius:16px;background:var(--c-secondary-l);z-index:-1;
}

/* 胶囊筛选 */
.filter-bar{
  position:sticky;top:0;z-index:30;margin-top:48px;
  background:rgba(244,248,250,.94);backdrop-filter:none;
  border-top:1px solid var(--c-line-soft);border-bottom:1px solid var(--c-line-soft);
}
.filter-inner{display:flex;align-items:center;gap:10px;padding-top:14px;padding-bottom:14px;overflow-x:auto;}
.filter-inner::-webkit-scrollbar{height:0;}
.chip{
  flex:0 0 auto;font-size:13px;padding:6px 14px;border-radius:var(--radius-pill);
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-text-2);
  text-decoration:none;transition:all .2s ease;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);text-decoration:none;}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:var(--c-text-inv);font-weight:500;}

/* 板块 */
.section{margin-top:88px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:30px;}
.sec-head h2{
  position:relative;padding-left:16px;
  font-size:clamp(23px,2.4vw,30px);font-weight:600;line-height:1.35;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.3em;width:3px;height:18px;
  border-radius:2px;background:var(--c-primary);
}
.sec-head .sec-desc{margin:0;font-size:14px;color:var(--c-text-3);line-height:1.7;}
.link-more{font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px;}
.link-more svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;transition:transform .2s ease;}
.link-more:hover svg{transform:translateX(3px);}

/* 编号目录列表 */
.entry-list{border-top:1px solid var(--c-line-soft);}
.entry-row{
  display:grid;grid-template-columns:72px 1fr 140px;gap:20px;align-items:center;
  padding:22px 18px;border-bottom:1px solid var(--c-line-soft);border-radius:12px;
  color:inherit;text-decoration:none;
  transition:background .22s cubic-bezier(.2,.7,.3,1),transform .22s cubic-bezier(.2,.7,.3,1);
}
.entry-row:hover{background:var(--c-primary-l);transform:translateX(4px);text-decoration:none;color:inherit;}
.entry-no{font-family:var(--font-num);font-size:24px;font-weight:600;color:var(--c-secondary);letter-spacing:.02em;line-height:1;}
.entry-body h3{font-size:17px;font-weight:600;color:var(--c-text-1);margin-bottom:6px;transition:color .2s ease;}
.entry-row:hover .entry-body h3{color:var(--c-primary);}
.entry-body p{margin:0;font-size:14px;line-height:1.7;color:var(--c-text-3);}
.entry-meta{
  display:flex;align-items:center;justify-content:flex-end;gap:14px;
  font-family:var(--font-num);font-size:13px;color:var(--c-text-3);
}
.entry-meta .arrow{width:18px;height:18px;fill:none;stroke:var(--c-primary);stroke-width:1.8;transition:transform .22s ease;}
.entry-row:hover .entry-meta .arrow{transform:translateX(4px);}

/* 校验层级 */
.layer-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;align-items:stretch;}
.layer-main{
  background:var(--c-surface);border-radius:var(--radius-lg);padding:32px;
  box-shadow:var(--sh-1);transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  border:1px solid transparent;
}
.layer-main:hover{box-shadow:var(--sh-3);transform:translateY(-3px);border-color:var(--c-primary-l);}
.layer-main img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;margin-bottom:22px;background:var(--c-surface-2);}
.layer-main h3{font-size:19px;font-weight:600;margin-bottom:12px;}
.layer-main p{font-size:15px;color:var(--c-text-2);line-height:1.85;}
.tick-list li{position:relative;padding-left:22px;font-size:14px;color:var(--c-text-2);line-height:1.8;margin-bottom:8px;}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:50%;
  background:var(--c-secondary-l);border:2px solid var(--c-secondary);
}
.layer-side{display:flex;flex-direction:column;gap:24px;}
.layer-card{
  flex:1;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-card);padding:24px;
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.layer-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px);border-color:var(--c-primary-l);}
.layer-card .tag{
  display:inline-block;font-size:12px;padding:3px 10px;border-radius:var(--radius-pill);
  background:var(--c-secondary-l);color:var(--c-secondary);margin-bottom:12px;
}
.layer-card h3{font-size:17px;font-weight:600;margin-bottom:10px;}
.layer-card p{margin:0;font-size:14px;color:var(--c-text-3);line-height:1.75;}

/* 时间线流程 */
.timeline{position:relative;padding-left:30px;margin-top:8px;}
.timeline::before{content:"";position:absolute;left:5px;top:10px;bottom:10px;width:2px;background:var(--c-primary-l);}
.tl-item{position:relative;margin-bottom:24px;background:var(--c-surface);border-radius:var(--radius-card);padding:20px 24px;box-shadow:var(--sh-1);}
.tl-item:last-child{margin-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:24px;width:12px;height:12px;border-radius:50%;
  background:var(--c-surface);border:3px solid var(--c-primary);box-sizing:border-box;
}
.tl-step{font-family:var(--font-num);font-size:12px;color:var(--c-secondary);letter-spacing:.08em;display:block;margin-bottom:6px;}
.tl-item h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.tl-item p{margin:0;font-size:14px;color:var(--c-text-3);line-height:1.75;}

/* 适用场景 */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.scene-card{
  background:var(--c-surface-2);border-radius:var(--radius-card);padding:24px;
  transition:background .22s ease,transform .22s ease;
}
.scene-card:hover{background:var(--c-primary-l);transform:translateY(-3px);}
.scene-card .ico{
  width:36px;height:36px;border-radius:10px;background:var(--c-surface);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.scene-card .ico svg{width:20px;height:20px;fill:none;stroke:var(--c-primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.scene-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.scene-card p{margin:0;font-size:14px;color:var(--c-text-2);line-height:1.75;}

/* 继续了解 */
.links-row{display:flex;flex-wrap:wrap;gap:28px;}
.links-row a{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;}
.links-row svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;transition:transform .2s ease;}
.links-row a:hover svg{transform:translateX(3px);}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px;}
.faq-item{background:var(--c-surface);border-radius:var(--radius-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;background:none;border:0;
  font-size:16px;font-weight:600;text-align:left;cursor:pointer;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-ico{
  position:relative;width:20px;height:20px;flex:0 0 auto;
  border:1.5px solid var(--c-primary);border-radius:8px;
}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--c-primary);border-radius:1px;
}
.faq-ico::before{width:10px;height:1.5px;}
.faq-ico::after{width:1.5px;height:10px;transition:transform .2s ease;}
.faq-item.open .faq-ico::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a p{margin:0;padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);}

/* CTA */
.cta-band{
  background:var(--c-primary-l);border-radius:var(--radius-block);padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h2{font-size:23px;font-weight:600;margin-bottom:8px;}
.cta-band p{margin:0;font-size:15px;color:var(--c-text-2);line-height:1.75;max-width:44em;}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}

/* 页脚 */
.site-foot{margin-top:96px;background:var(--c-surface-2);border-top:1px solid var(--c-line);padding:56px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.foot-brand p{font-size:14px;color:var(--c-text-2);line-height:1.8;margin:14px 0 0;max-width:32em;}
.foot-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--c-text-1);}
.foot-col ul li{margin-bottom:10px;}
.foot-col ul a{font-size:14px;color:var(--c-text-2);}
.foot-col ul a:hover{color:var(--c-primary);text-decoration:underline;}
.sub-form{display:flex;flex-direction:column;gap:10px;margin-top:12px;}
.sub-form input{
  height:44px;border:1px solid var(--c-line);border-radius:var(--radius-btn);
  padding:0 14px;font:inherit;font-size:14px;background:var(--c-surface);color:var(--c-text-1);
}
.sub-form input::placeholder{color:var(--c-text-3);}
.sub-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,106,139,.15);}
.sub-form .btn{height:42px;}
.foot-bottom{
  margin-top:44px;padding:20px 0;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.foot-bottom .links{display:flex;flex-wrap:wrap;gap:18px;}
.foot-bottom .links a{font-size:13px;color:var(--c-text-3);}
.foot-bottom .links a:hover{color:var(--c-primary);}

/* 断点 */
@media (max-width:1180px){
  .container{padding:0 28px;}
}
@media (max-width:1023px){
  .sidebar{transform:translateX(-100%);width:280px;transition:transform .26s cubic-bezier(.2,.7,.3,1);box-shadow:none;}
  .sidebar.open{transform:translateX(0);box-shadow:var(--sh-3);}
  .topbar{display:flex;}
  .main{margin-left:0;padding-top:60px;}
  .filter-bar{top:60px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-sub{font-size:17px;}
  .section{margin-top:64px;}
  .layer-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .page-hero{padding:32px 0 0;}
  .hero-copy h1{font-size:28px;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{gap:14px;}
  .hero-metrics li + li{padding-left:14px;}
  .section{margin-top:48px;}
  .entry-row{grid-template-columns:48px 1fr;gap:14px;padding:18px 8px;}
  .entry-no{font-size:20px;}
  .entry-meta{grid-column:2;justify-content:flex-start;padding-top:4px;}
  .entry-row:hover{transform:translateX(0);}
  .scene-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{width:100%;}
  .timeline{padding-left:24px;}
  .timeline::before{left:4px;}
  .tl-item::before{left:-24px;top:22px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  .site-foot{margin-top:64px;padding-top:40px;}
}
@media (max-width:479px){
  .hero-copy h1{font-size:26px;line-height:1.35;}
  .hero-sub{font-size:16px;}
  .sec-head h2{font-size:22px;}
  .faq-q{font-size:15px;padding:14px 16px;}
  .faq-a p{padding:0 16px 18px;}
  .layer-main{padding:22px;}
  .links-row{gap:16px;flex-direction:column;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1D6A8B;
  --c-primary-d:#14506B;
  --c-primary-l:#E6F1F6;
  --c-secondary:#2E8B72;
  --c-secondary-l:#E7F4EF;
  --c-accent:#D98A3D;
  --c-bg:#F4F8FA;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF3F7;
  --c-line:#DCE6EC;
  --c-line-soft:#EAF1F5;
  --c-text:#17242E;
  --c-text-2:#4A5C68;
  --c-text-3:#7B8D99;
  --c-white:#FFFFFF;
  --r-card:14px;
  --r-lg:18px;
  --r-block:20px;
  --r-btn:10px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(23,55,74,.06),0 2px 8px rgba(23,55,74,.05);
  --sh2:0 4px 16px rgba(23,55,74,.08);
  --sh3:0 10px 26px rgba(23,55,74,.12);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"DIN Alternate","HarmonyOS Sans","SF Mono",ui-monospace,monospace;
  --sidebar:248px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px;background:var(--c-surface-2)}
a{color:var(--c-primary);text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease)}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.35;letter-spacing:.2px}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{max-width:1180px;margin:0 auto;padding:0 40px}

/* ---------- 布局骨架 ---------- */
.shell{display:flex;min-height:100vh}
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar);
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  z-index:70;
  transition:transform .26s var(--ease);
}
.main{margin-left:var(--sidebar);flex:1;min-width:0;display:flex;flex-direction:column}

/* ---------- 品牌 ---------- */
.logo{display:block;text-decoration:none}
.logo:hover{text-decoration:none;opacity:.85}
.logo-main{display:block;font-size:19px;font-weight:700;color:var(--c-text);letter-spacing:.5px;line-height:1.3}
.logo-sub{display:block;font-size:12px;color:var(--c-text-3);font-weight:400;line-height:1.4;margin-top:2px}
.brand{
  height:72px;
  display:flex;
  align-items:center;
  padding:0 22px;
  border-bottom:1px solid var(--c-line-soft);
  flex:0 0 auto;
}

/* ---------- 侧栏导航 ---------- */
.side-scroll{flex:1;overflow-y:auto;padding:18px 14px 10px}
.side-scroll::-webkit-scrollbar{width:6px}
.side-scroll::-webkit-scrollbar-thumb{background:#C7D6DE;border-radius:6px}
.nav-label{font-size:12px;color:var(--c-text-3);letter-spacing:2px;padding:4px 14px 10px}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-nav a{
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 14px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:500;
  color:var(--c-text-2);
  text-decoration:none;
  position:relative;
  border-left:3px solid transparent;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.side-nav a:hover{background:var(--c-surface-2);color:var(--c-primary);text-decoration:none}
.side-nav a.active{background:var(--c-primary-l);color:var(--c-primary);font-weight:600;border-left-color:var(--c-primary)}
.nav-ico{width:18px;height:18px;flex:0 0 18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

.side-foot{flex:0 0 auto;padding:16px 20px 20px;border-top:1px solid var(--c-line-soft)}
.side-foot .btn{width:100%}
.side-foot .tip{margin:12px 0 0;font-size:12px;color:var(--c-text-3);line-height:1.6}

/* ---------- 顶部栏（移动端） ---------- */
.topbar{
  display:none;
  position:sticky;
  top:0;
  z-index:60;
  height:60px;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  align-items:center;
  gap:12px;
  padding:0 14px;
}
.burger{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:0;border-radius:var(--r-btn);
  color:var(--c-text);cursor:pointer;
}
.burger:hover{background:var(--c-surface-2)}
.burger svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.topbar .logo-main{font-size:16px}
.topbar .top-cta{margin-left:auto;font-size:14px;font-weight:500;color:var(--c-primary);text-decoration:none;padding:8px 10px;border-radius:var(--r-btn)}
.topbar .top-cta:hover{background:var(--c-primary-l);text-decoration:none}
.mask{
  display:none;
  position:fixed;inset:0;background:rgba(23,36,46,.45);z-index:65;
  opacity:0;transition:opacity .26s var(--ease);
}
body.drawer-open .mask{display:block;opacity:1}
body.drawer-open{overflow:hidden}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease);
  text-decoration:none;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--c-primary);color:var(--c-white)}
.btn-primary:hover{background:var(--c-primary-d);color:var(--c-white);box-shadow:var(--sh2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-d)}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-outline:hover{background:rgba(29,106,139,.08);color:var(--c-primary-d)}
.btn-ghost{background:var(--c-secondary-l);color:var(--c-secondary);border-color:transparent}
.btn-ghost:hover{background:#D8EDE4;color:#256F5C}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--c-primary);text-decoration:none;
}
.link-arrow svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s var(--ease)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:3px}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;
  font-size:13px;line-height:1;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-l);color:var(--c-primary);font-weight:500;
}
.badge-green{background:var(--c-secondary-l);color:var(--c-secondary)}
.badge-hot{background:rgba(217,138,61,.14);color:#A8662599;color:#A86625}
.badge-line{background:transparent;border:1px solid var(--c-line);color:var(--c-text-2)}

/* ---------- 面包屑 ---------- */
.crumb{padding:26px 0 0;font-size:13px;color:var(--c-text-3)}
.crumb ol{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.crumb li{display:flex;align-items:center;gap:6px}
.crumb li+li::before{content:"/";color:#B8C7D0}
.crumb a{color:var(--c-text-3);text-decoration:none}
.crumb a:hover{color:var(--c-primary);text-decoration:underline}
.crumb .cur{color:var(--c-text-2)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:28px 0 8px;overflow:hidden}
.hero-inner{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.hero-copy h1{
  font-size:clamp(30px,3.6vw,42px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:.4px;
  margin-bottom:16px;
}
.hero-copy .sub{
  font-size:20px;
  line-height:1.7;
  color:var(--c-text-2);
  max-width:34em;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.hero-facts{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:14px;color:var(--c-text-2);
}
.hero-facts .num{font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--c-primary);letter-spacing:.5px}
.hero-facts .sep{width:1px;height:18px;background:var(--c-line)}
.hero-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh2);
  background:var(--c-surface-2);
}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.hero-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 18px;
  font-size:13px;color:#fff;
  background:linear-gradient(180deg,rgba(23,36,46,0),rgba(23,36,46,.72));
}
.hero-deco{
  position:absolute;inset:auto -60px -80px auto;
  width:460px;height:320px;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.06;pointer-events:none;border-radius:24px;
}

/* ---------- 区块通用 ---------- */
.section{padding:56px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.section-head h2{
  font-size:clamp(23px,2.4vw,30px);
  font-weight:600;
  padding-left:14px;
  position:relative;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;
  background:var(--c-primary);border-radius:2px;
}
.section-desc{font-size:14px;color:var(--c-text-3);margin:8px 0 0 14px}
.section-more{font-size:14px;white-space:nowrap}

/* ---------- 胶囊筛选 ---------- */
.chips{
  display:flex;gap:10px;overflow-x:auto;padding:4px 2px 10px;
  scrollbar-width:thin;
}
.chips::-webkit-scrollbar{height:6px}
.chips::-webkit-scrollbar-thumb{background:#C7D6DE;border-radius:6px}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:38px;padding:0 16px;
  border-radius:var(--r-pill);
  font-size:14px;font-weight:500;
  background:var(--c-surface);
  color:var(--c-text-2);
  border:1px solid var(--c-line);
  cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ---------- 时间轴 ---------- */
.timeline-wrap{
  background:var(--c-surface);
  border-radius:var(--r-block);
  box-shadow:var(--sh1);
  padding:34px 32px 20px;
  margin-top:8px;
}
.timeline{position:relative;padding-left:38px}
.timeline::before{
  content:"";position:absolute;left:9px;top:10px;bottom:26px;width:2px;
  background:linear-gradient(180deg,var(--c-primary) 0%,var(--c-secondary) 62%,var(--c-line) 100%);
  border-radius:2px;
}
.tl-item{position:relative;margin-bottom:20px}
.tl-item::before{
  content:"";position:absolute;left:-37px;top:26px;
  width:16px;height:16px;border-radius:50%;
  background:var(--c-surface);
  border:3px solid var(--c-primary);
  box-shadow:0 0 0 4px var(--c-primary-l);
}
.tl-item.is-soft::before{border-color:var(--c-secondary);box-shadow:0 0 0 4px var(--c-secondary-l)}
.tl-card{
  background:var(--c-surface);
  border:1px solid var(--c-line-soft);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:0 1px 2px rgba(23,55,74,.04);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:var(--c-primary-l)}
.tl-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.tl-step{
  font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--c-primary);
  opacity:.32;letter-spacing:1px;line-height:1;
}
.tl-card h3{font-size:19px;font-weight:600;margin-bottom:8px}
.tl-card p{font-size:15px;line-height:1.85;color:var(--c-text-2);margin-bottom:12px}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.tl-tags span{font-size:12px;color:var(--c-text-3);background:var(--c-surface-2);border-radius:var(--r-pill);padding:4px 10px}

/* ---------- 对照表 ---------- */
.table-card{
  background:var(--c-surface);
  border-radius:var(--r-block);
  box-shadow:var(--sh1);
  overflow:hidden;
}
.table-scroll{overflow-x:auto}
table.rules{width:100%;border-collapse:collapse;min-width:640px}
table.rules caption{text-align:left;padding:22px 26px 6px;font-size:14px;color:var(--c-text-3)}
table.rules th,table.rules td{padding:16px 26px;text-align:left;font-size:15px;border-bottom:1px solid var(--c-line-soft);vertical-align:top}
table.rules th{background:var(--c-primary-l);color:var(--c-primary);font-weight:600;font-size:14px;letter-spacing:.5px}
table.rules tbody tr:nth-child(even){background:var(--c-surface-2)}
table.rules tbody tr:last-child td{border-bottom:0}
table.rules td:first-child{font-weight:600;color:var(--c-text)}

/* ---------- 流程四步 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  background:var(--c-surface);
  border-radius:var(--r-card);
  padding:24px 22px;
  box-shadow:var(--sh1);
  position:relative;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh3)}
.step .idx{
  font-family:var(--font-num);font-size:24px;font-weight:700;
  color:var(--c-secondary);opacity:.5;line-height:1;margin-bottom:14px;display:block;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;line-height:1.8;color:var(--c-text-2)}

/* ---------- 推荐卡 ---------- */
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--c-surface);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh1);
  display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  border:1px solid transparent;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:var(--c-primary-l)}
.card .thumb{position:relative;background:var(--c-surface-2)}
.card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.card .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.card h3{font-size:18px;margin-bottom:10px}
.card h3 a{color:var(--c-text);text-decoration:none}
.card h3 a:hover{color:var(--c-primary);text-decoration:none}
.card .desc{font-size:14px;color:var(--c-text-2);line-height:1.8;margin-bottom:16px;flex:1}
.card .meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);margin-bottom:14px}
.card .meta .date{font-family:var(--font-num)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  background:var(--c-surface);
  border-radius:var(--r-card);
  box-shadow:var(--sh1);
  overflow:hidden;
  border:1px solid transparent;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item.open{border-color:var(--c-primary-l);box-shadow:var(--sh2)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;
  padding:14px 22px;
  background:transparent;border:0;
  font-size:16px;font-weight:600;color:var(--c-text);
  text-align:left;cursor:pointer;
}
.faq-q:hover{color:var(--c-primary)}
.faq-q .sign{
  flex:0 0 22px;width:22px;height:22px;
  border:1.5px solid var(--c-primary);border-radius:8px;
  position:relative;
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
  left:50%;top:50%;transform:translate(-50%,-50%);
}
.faq-q .sign::before{width:10px;height:2px}
.faq-q .sign::after{width:2px;height:10px;transition:transform .2s var(--ease)}
.faq-item.open .faq-q .sign::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease)}
.faq-item.open .faq-a{max-height:300px}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2)}

/* ---------- CTA 条 ---------- */
.cta-band{
  margin-top:64px;
  background:var(--c-primary-l);
  border-radius:var(--r-block);
  padding:34px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:26px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:22px;margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--c-text-2);max-width:46em}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-foot{
  margin-top:72px;
  background:var(--c-surface-2);
  border-top:1px solid var(--c-line);
  padding:52px 0 0;
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:34px}
.foot-brand p{font-size:14px;line-height:1.85;color:var(--c-text-2);margin-top:16px;max-width:34em}
.foot-col h4{font-size:15px;font-weight:600;margin-bottom:14px}
.foot-col ul{display:grid;gap:10px}
.foot-col a{font-size:14px;color:var(--c-text-2);text-decoration:none}
.foot-col a:hover{color:var(--c-primary);text-decoration:underline}
.foot-tip{font-size:14px;color:var(--c-text-2);margin-bottom:12px}
.sub-form{display:flex;gap:10px}
.sub-form input{
  flex:1;min-width:0;height:46px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);font-size:14px;color:var(--c-text);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.sub-form input::placeholder{color:var(--c-text-3)}
.sub-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,106,139,.15)}
.sub-form .btn{white-space:nowrap}
.foot-bottom{
  margin-top:44px;
  border-top:1px solid var(--c-line);
  padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.foot-bottom .links{display:flex;flex-wrap:wrap;gap:14px}
.foot-bottom .links a{color:var(--c-text-3);text-decoration:none}
.foot-bottom .links a:hover{color:var(--c-primary);text-decoration:underline}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .hero-inner{gap:36px}
}
@media (max-width:1023px){
  .sidebar{transform:translateX(-100%);box-shadow:var(--sh3)}
  body.drawer-open .sidebar{transform:translateX(0)}
  .main{margin-left:0}
  .topbar{display:flex}
  .container{padding:0 28px}
  .hero{padding-top:20px}
  .hero-inner{grid-template-columns:1fr;gap:28px}
  .hero-media img{aspect-ratio:16/10}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cards3{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding-top:48px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .hero-copy .sub{font-size:18px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-facts{gap:10px;font-size:13px}
  .hero-deco{display:none}
  .timeline-wrap{padding:24px 18px 12px;border-radius:var(--r-card)}
  .timeline{padding-left:30px}
  .timeline::before{left:6px}
  .tl-item::before{left:-30px;top:24px;width:14px;height:14px;border-width:3px}
  .tl-card{padding:18px 18px}
  .tl-card h3{font-size:17px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:20px}
  .steps{grid-template-columns:1fr}
  .cards3{grid-template-columns:1fr}
  .cta-band{padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  table.rules{min-width:0}
  table.rules thead{display:none}
  table.rules tr{display:block;padding:16px 18px;border-bottom:1px solid var(--c-line-soft)}
  table.rules tr:nth-child(even){background:var(--c-surface-2)}
  table.rules td{display:block;padding:0 0 8px;border:0;font-size:14px}
  table.rules td::before{content:attr(data-l);display:block;font-size:12px;color:var(--c-text-3);margin-bottom:2px}
  table.rules td:last-child{padding-bottom:0}
}
@media (max-width:479px){
  .hero-copy h1{font-size:26px}
  .hero-copy .sub{font-size:16.5px}
  .badge{font-size:12px}
  .tl-step{font-size:18px}
  .cta-band h2{font-size:19px}
}

/* roulang page: category4 */
:root{
  --c-primary:#1D6A8B;
  --c-primary-d:#14506B;
  --c-primary-l:#E6F1F6;
  --c-secondary:#2E8B72;
  --c-secondary-l:#E7F4EF;
  --c-accent:#D98A3D;
  --c-bg:#F4F8FA;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF3F7;
  --c-line:#DCE6EC;
  --c-line-soft:#EAF1F5;
  --c-text:#17242E;
  --c-text-2:#4A5C68;
  --c-text-3:#7B8D99;
  --r-card:14px;
  --r-lg:18px;
  --r-btn:10px;
  --r-block:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(23,55,74,.06),0 2px 8px rgba(23,55,74,.05);
  --sh-2:0 4px 16px rgba(23,55,74,.08);
  --sh-3:0 10px 26px rgba(23,55,74,.12);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"DIN Alternate","HarmonyOS Sans","SF Mono",ui-monospace,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
  --side-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  overflow-x:hidden;
}
body.lock{overflow:hidden}
img{display:block;max-width:100%;border-radius:12px}
a{color:var(--c-primary);text-decoration:none;transition:color .18s var(--ease),opacity .18s var(--ease)}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:.2px}
h1{font-size:clamp(30px,3.6vw,42px);line-height:1.3;font-weight:700}
h2{font-size:clamp(23px,2.4vw,30px);line-height:1.35}
h3{font-size:19px;line-height:1.45}
h4{font-size:16px;line-height:1.5}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

/* ====== App Shell ====== */
.shell{display:flex;min-height:100vh}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
  background:var(--c-surface);border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;z-index:60;
}
.side-head{height:72px;display:flex;align-items:center;padding:0 22px;border-bottom:1px solid var(--c-line-soft);flex:0 0 auto}
.logo{display:flex;flex-direction:column;gap:1px;color:inherit;text-decoration:none;transition:opacity .2s var(--ease)}
.logo:hover{opacity:.85;text-decoration:none;color:inherit}
.logo-main{font-size:18px;font-weight:700;color:var(--c-primary-d);letter-spacing:.4px}
.logo-sub{font-size:12px;color:var(--c-text-3);line-height:1.4}
.side-scroll{flex:1;overflow-y:auto;padding:0 16px 16px;scrollbar-width:thin;scrollbar-color:#C7D6DE transparent}
.side-scroll::-webkit-scrollbar{width:6px}
.side-scroll::-webkit-scrollbar-thumb{background:#C7D6DE;border-radius:3px}
.nav-label{font-size:12px;letter-spacing:1px;color:var(--c-text-3);padding:20px 14px 8px}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--c-text-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-nav a:hover{background:var(--c-surface-2);color:var(--c-primary);text-decoration:none}
.side-nav a.active{background:rgba(29,106,139,.09);color:var(--c-primary);font-weight:600}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-primary);
}
.nav-ico{width:18px;height:18px;flex:0 0 18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.side-foot{flex:0 0 auto;padding:16px;border-top:1px solid var(--c-line-soft)}
.side-foot .btn{width:100%}
.side-note{font-size:12px;color:var(--c-text-3);margin:10px 2px 0;line-height:1.6}

.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:50;
  background:var(--c-surface);border-bottom:1px solid var(--c-line);
  align-items:center;justify-content:space-between;padding:0 14px;
}
.burger{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  border:0;background:transparent;border-radius:10px;cursor:pointer;color:var(--c-text);
}
.burger:hover{background:var(--c-surface-2)}
.burger svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.topbar .logo-main{font-size:16px}
.topbar .logo-sub{display:none}
.top-link{font-size:14px;font-weight:500;padding:8px 10px;border-radius:10px}
.top-link:hover{background:var(--c-primary-l);text-decoration:none}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(23,36,46,.45);
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s;z-index:55;
}
.drawer-mask.open{opacity:1;visibility:visible}

.main-wrap{flex:1;min-width:0;margin-left:var(--side-w);display:flex;flex-direction:column}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 40px}

/* ====== 按钮 ====== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;text-decoration:none;
  transition:background .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.btn:hover{text-decoration:none}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-outline:hover{background:rgba(29,106,139,.08);color:var(--c-primary-d)}
.btn-ghost{background:var(--c-primary-l);color:var(--c-secondary)}
.btn-ghost:hover{background:#D8EAF1;color:var(--c-primary-d)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}

/* ====== 标签 / 徽章 ====== */
.badge{
  display:inline-flex;align-items:center;gap:4px;
  padding:4px 12px;border-radius:var(--r-pill);font-size:13px;
  background:var(--c-primary-l);color:var(--c-primary);font-weight:500;
}
.badge-green{background:var(--c-secondary-l);color:var(--c-secondary)}
.badge-accent{background:rgba(217,138,61,.14);color:#A9651F}
.meta{font-size:13px;color:var(--c-text-3);line-height:1.6}
.meta .num{font-family:var(--font-num);letter-spacing:.4px}
.dot{display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--c-line);margin:0 8px;vertical-align:middle}

/* ====== 面包屑 ====== */
.crumb{font-size:13px;color:var(--c-text-3);display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:14px}
.crumb a{color:var(--c-text-3)}
.crumb a:hover{color:var(--c-primary)}
.crumb .cur{color:var(--c-text-2)}

/* ====== Hero ====== */
.page-hero{
  background:linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%);
  border-bottom:1px solid var(--c-line-soft);
  padding:40px 0 36px;position:relative;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-80px;top:-60px;width:460px;height:460px;
  background:url("/assets/images/backpic/back-1.png") center/contain no-repeat;
  opacity:.05;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;position:relative;z-index:1}
.hero-copy h1{margin-bottom:14px}
.hero-lead{font-size:20px;line-height:1.7;color:var(--c-text-2);margin-bottom:18px}
.hero-text{font-size:15px;color:var(--c-text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:28px;font-size:13px;color:var(--c-text-3)}
.hero-stats b{font-family:var(--font-num);font-size:18px;color:var(--c-primary-d);font-weight:700;margin-right:4px}
.hero-stats .sep{width:1px;height:16px;background:var(--c-line)}
.hero-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--c-surface-2)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}

/* ====== 胶囊筛选 ====== */
.chips{display:flex;gap:10px;overflow-x:auto;padding:22px 0 2px;scrollbar-width:thin}
.chips::-webkit-scrollbar{height:6px}
.chips::-webkit-scrollbar-thumb{background:#C7D6DE;border-radius:3px}
.chip{
  flex:0 0 auto;padding:8px 16px;border-radius:var(--r-pill);
  background:var(--c-surface);border:1px solid var(--c-line);
  font-size:14px;color:var(--c-text-2);white-space:nowrap;
  transition:all .2s var(--ease);
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-l);text-decoration:none}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ====== 版块标题 ====== */
.block{padding:56px 0 0}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
.sec-title{display:flex;align-items:center;gap:12px}
.sec-title::before{content:"";width:3px;height:18px;border-radius:2px;background:var(--c-primary);flex:0 0 3px}
.sec-desc{font-size:14px;color:var(--c-text-3);margin:8px 0 0}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500}
.text-link .ar{transition:transform .2s var(--ease)}
.text-link:hover .ar{transform:translateX(3px)}
.text-link:hover{text-decoration:underline}

/* ====== 主分栏 8 / 4 ====== */
.split{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:36px;align-items:start;margin-top:26px}
.feed{display:grid;gap:20px}

.feature-card{
  background:var(--c-surface);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);border:1px solid transparent;
  transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.feature-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px);border-color:var(--c-primary-l)}
.feature-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.fc-body{padding:24px 26px 26px}
.fc-body h3{margin:12px 0 10px}
.fc-body h3 a{color:var(--c-text)}
.fc-body h3 a:hover{color:var(--c-primary);text-decoration:none}
.fc-text{font-size:14px;color:var(--c-text-2);margin-bottom:14px}

.item-card{
  display:flex;gap:18px;align-items:center;
  background:var(--c-surface);border-radius:var(--r-card);padding:16px;
  box-shadow:var(--sh-1);border:1px solid transparent;
  transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.item-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px);border-color:var(--c-primary-l)}
.item-card figure{flex:0 0 132px;margin:0;border-radius:12px;overflow:hidden;background:var(--c-surface-2)}
.item-card img{width:132px;aspect-ratio:4/3;object-fit:cover;border-radius:12px}
.item-body{flex:1;min-width:0}
.item-body h3{margin:6px 0 8px;font-size:17px}
.item-body h3 a{color:var(--c-text);display:block}
.item-body h3 a:hover{color:var(--c-primary);text-decoration:none}
.item-body p{font-size:14px;color:var(--c-text-2);margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.item-ar{flex:0 0 auto;color:var(--c-primary);font-size:18px;transition:transform .2s var(--ease)}
.item-card:hover .item-ar{transform:translateX(4px)}

/* ====== 侧栏 ====== */
.side-col{position:sticky;top:24px;display:grid;gap:20px}
.side-card{background:var(--c-surface);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1)}
.side-card h3{font-size:16px;margin-bottom:14px}
.index-list{display:grid;gap:2px}
.index-list a{
  display:flex;gap:10px;align-items:baseline;padding:9px 10px;border-radius:10px;
  font-size:14px;color:var(--c-text-2);transition:background .2s var(--ease),color .2s var(--ease);
}
.index-list a:hover{background:var(--c-primary-l);color:var(--c-primary);text-decoration:none}
.index-list .no{font-family:var(--font-num);font-size:13px;color:var(--c-secondary);flex:0 0 auto}
.rec-list{display:grid;gap:12px}
.rec-list a{display:block;font-size:14px;color:var(--c-text-2);padding-left:12px;border-left:2px solid var(--c-line);transition:border-color .2s var(--ease),color .2s var(--ease)}
.rec-list a:hover{border-color:var(--c-primary);color:var(--c-primary);text-decoration:none}
.rec-list span{display:block;font-size:13px;color:var(--c-text-3);margin-top:2px}
.cta-card{background:var(--c-secondary-l);box-shadow:none}
.cta-card h3{color:#1F6B57}
.cta-card p{font-size:14px;color:var(--c-text-2);margin-bottom:16px}
.cta-card .btn{width:100%}

/* ====== KPI 数据区 ====== */
.kpi-band{background:var(--c-surface);border-radius:var(--r-block);box-shadow:var(--sh-1);padding:32px;margin-top:26px}
.kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.kpi{border-left:2px solid var(--c-line-soft);padding-left:18px}
.kpi .val{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--c-primary-d);line-height:1.2}
.kpi .val small{font-size:14px;font-weight:500;color:var(--c-text-2);margin-left:4px;font-family:var(--font-sans)}
.kpi .lab{font-size:14px;color:var(--c-text-2);margin-top:6px}
.kpi .sub{font-size:13px;color:var(--c-text-3);margin-top:2px}

/* ====== 流程 ====== */
.flow-band{
  position:relative;margin-top:26px;border-radius:var(--r-block);overflow:hidden;
  background:url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  padding:38px 32px;
}
.flow-band::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.93)}
.flow-inner{position:relative;z-index:1}
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:24px}
.flow-step{background:var(--c-surface);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:box-shadow .22s var(--ease),transform .22s var(--ease)}
.flow-step:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.flow-step .no{font-family:var(--font-num);font-size:22px;color:var(--c-secondary);font-weight:700}
.flow-step h3{font-size:16px;margin:10px 0 8px}
.flow-step p{font-size:14px;color:var(--c-text-2);margin:0}

/* ====== FAQ ====== */
.faq-list{display:grid;gap:12px;margin-top:24px}
.faq-item{background:var(--c-surface);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;border:1px solid transparent;transition:border-color .2s var(--ease)}
.faq-item.open{border-color:var(--c-primary-l)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;background:none;border:0;cursor:pointer;
  text-align:left;font-size:16px;font-weight:600;color:var(--c-text);
}
.faq-q:hover{color:var(--c-primary)}
.faq-ico{
  position:relative;flex:0 0 22px;width:22px;height:22px;
  border:1.5px solid var(--c-primary);border-radius:8px;
}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-ico::before{left:5px;right:5px;top:9.5px;height:1.5px}
.faq-ico::after{top:5px;bottom:5px;left:9.5px;width:1.5px}
.faq-item.open .faq-ico::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease)}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);margin:0}
.faq-item.open .faq-a{max-height:340px}

/* ====== CTA + 表单 ====== */
.cta-band{
  margin-top:26px;background:var(--c-primary-l);border-radius:var(--r-block);
  padding:36px;display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start;
}
.cta-band h2{font-size:clamp(21px,2.2vw,26px);margin-bottom:12px;color:var(--c-primary-d)}
.cta-band .lead{font-size:15px;color:var(--c-text-2);margin-bottom:18px}
.check-list{display:grid;gap:10px}
.check-list li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2)}
.check-list li::before{content:"";flex:0 0 6px;width:6px;height:6px;border-radius:50%;background:var(--c-secondary);margin-top:9px}
.form-card{background:var(--c-surface);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:500;margin-bottom:8px;color:var(--c-text-2)}
.field input,.field textarea{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:var(--c-surface);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:108px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--c-text-3)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,106,139,.15)}
.field .err{font-size:13px;color:#C0504A;margin-top:6px;display:none}
.field.has-error input,.field.has-error textarea{border-color:#C0504A}
.field.has-error .err{display:block}
.form-tip{font-size:13px;color:var(--c-text-3);margin-top:12px}
.form-card .btn{width:100%}

/* ====== 页脚 ====== */
.site-foot{background:var(--c-surface-2);border-top:1px solid var(--c-line);margin-top:88px;padding:56px 0 24px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px}
.foot-brand p{font-size:14px;line-height:1.8;color:var(--c-text-2);margin-top:12px}
.foot-col h4{font-size:15px;margin-bottom:14px}
.foot-col ul{display:grid;gap:10px}
.foot-col ul a{font-size:14px;color:var(--c-text-2)}
.foot-col ul a:hover{color:var(--c-primary);text-decoration:underline}
.sub-form{display:flex;gap:8px;margin-top:12px}
.sub-form input{
  flex:1;min-width:0;height:44px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:var(--c-surface);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,106,139,.15)}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  font-size:13px;color:var(--c-text-3);
}
.foot-bottom .links{display:flex;flex-wrap:wrap;gap:16px}
.foot-bottom a{color:var(--c-text-3)}
.foot-bottom a:hover{color:var(--c-primary);text-decoration:underline}

/* ====== 响应式 ====== */
@media (max-width:1180px){
  .hero-grid{gap:32px}
  .foot-grid{grid-template-columns:1.3fr 1fr 1fr;gap:28px}
  .foot-grid .foot-col:last-child{grid-column:1 / -1}
}
@media (max-width:1023px){
  .topbar{display:flex}
  .drawer-mask{display:block}
  .sidebar{width:280px;transform:translateX(-100%);transition:transform .26s var(--ease)}
  .sidebar.open{transform:translateX(0);box-shadow:var(--sh-3)}
  .side-nav a{height:48px}
  .main-wrap{margin-left:0;padding-top:60px}
  .container{padding:0 28px}
  .page-hero{padding:32px 0 30px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-media{order:-1}
  .split{grid-template-columns:1fr;gap:28px}
  .side-col{position:static}
  .kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;gap:24px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .block{padding:44px 0 0}
  .page-hero{padding:24px 0 26px}
  .hero-lead{font-size:18px}
  .hero-actions .btn{flex:1 1 180px}
  .item-card{flex-direction:column;align-items:stretch}
  .item-card figure{flex:0 0 auto}
  .item-card img{width:100%;aspect-ratio:16/9}
  .item-ar{display:none}
  .kpi-band{padding:24px}
  .kpi-grid{grid-template-columns:1fr;gap:18px}
  .flow-band{padding:26px 20px}
  .flow-grid{grid-template-columns:1fr}
  .cta-band{padding:24px;border-radius:16px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:24px}
  .foot-grid .foot-brand{grid-column:1 / -1}
  .site-foot{margin-top:56px;padding:40px 0 20px}
}
@media (max-width:520px){
  h1{font-size:27px}
  h2{font-size:22px}
  .hero-actions .btn{flex:1 1 100%;width:100%}
  .chips{padding-top:16px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:10px}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
}