/* roulang page: index */
:root{
  --primary:#1B5FD9;
  --primary-dark:#1450BE;
  --tint:#E8F0FE;
  --accent:#17B890;
  --highlight:#FF8A4C;
  --highlight-dark:#F07535;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --title:#0F1B2D;
  --text:#3A4A60;
  --muted:#6B7C93;
  --line:#E3E9F2;
  --border:#EDF1F7;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(15,27,45,.04),0 10px 28px rgba(23,63,141,.06);
  --shadow-2:0 2px 6px rgba(15,27,45,.06),0 18px 40px rgba(23,63,141,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--title);font-weight:800;line-height:1.35;letter-spacing:.2px}
p{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.grid-container{max-width:1200px;padding-left:32px;padding-right:32px;margin-left:auto;margin-right:auto}
.nav-links,.hero__trust,.flow,.footer-list,.stat-row,.news-grid{list-style:none;margin:0;padding:0}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  padding:16px 0 6px;
  transition:padding .22s var(--ease);
}
.site-header.is-scrolled{padding-top:8px}
.nav-capsule{
  display:flex;align-items:center;gap:18px;
  max-width:1200px;margin:0 auto;
  padding:10px 12px 10px 22px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--border);
  box-shadow:0 1px 2px rgba(15,27,45,.04),0 12px 30px rgba(23,63,141,.08);
  transition:box-shadow .22s var(--ease),padding .22s var(--ease);
}
.site-header.is-scrolled .nav-capsule{box-shadow:0 2px 6px rgba(15,27,45,.08),0 18px 40px rgba(23,63,141,.14);padding-top:8px;padding-bottom:8px}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--title);white-space:nowrap;letter-spacing:.3px}
.brand:hover{color:var(--primary)}
.brand__mark{width:34px;height:34px;border-radius:11px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;flex:none}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  display:block;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--text);position:relative;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:center;
  transition:transform .22s var(--ease);
}
.nav-links a:hover{color:var(--primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--primary);background:var(--tint)}
.nav-links a.is-active::after{transform:scaleX(0)}
.nav-cta{margin-left:6px;height:44px;padding:0 22px}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--border);background:#fff;color:var(--title);
  align-items:center;justify-content:center;font-size:17px;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{background:var(--tint);color:var(--primary)}
.nav-drawer{
  display:none;max-width:1200px;margin:12px auto 0;padding:14px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  box-shadow:var(--shadow-2);
}
.nav-drawer.is-open{display:block}
.nav-drawer a{
  display:block;padding:14px 16px;border-radius:var(--r-md);
  font-size:16px;font-weight:600;color:var(--text);
}
.nav-drawer a:hover,.nav-drawer a.is-active{background:var(--tint);color:var(--primary)}
.nav-drawer .btn{width:100%;margin-top:10px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn i{font-size:14px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(27,95,217,.22)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 26px rgba(27,95,217,.3)}
.btn-accent{background:var(--highlight);color:#fff;box-shadow:0 6px 18px rgba(255,138,76,.28)}
.btn-accent:hover{background:var(--highlight-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,138,76,.34)}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--tint);color:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-2px)}
.btn:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(15,27,45,.16)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--white{background:#fff}
.section--tint{background:var(--bg)}
.section-head{max-width:780px;margin-bottom:48px}
.section-head h2{font-size:clamp(23px,2.6vw,32px)}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.eyebrow{
  display:inline-block;padding:6px 14px;margin-bottom:18px;border-radius:8px;
  background:var(--tint);color:var(--primary);font-size:13px;font-weight:600;
}
.badge{
  display:inline-block;padding:4px 12px;border-radius:8px;
  background:var(--tint);color:var(--primary);font-size:13px;font-weight:600;
}
.badge--accent{background:var(--accent);color:#fff}
.tag{display:inline-block;padding:6px 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--border);color:var(--text);font-size:13px;font-weight:600}

/* ---------- Hero ---------- */
.hero{position:relative;padding:64px 0 88px;background:var(--bg);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(27,95,217,.06) 0 1px,transparent 1px 26px);
  opacity:.55;pointer-events:none;
}
.hero .grid-container{position:relative;z-index:1}
.hero__grid{align-items:center}
.hero__title{font-size:clamp(28px,3.6vw,44px);line-height:1.26;margin-bottom:18px}
.hero__sub{font-size:18px;color:var(--muted);max-width:560px;line-height:1.75}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 34px}
.hero__trust{display:flex;flex-wrap:wrap;gap:26px;padding-top:24px;border-top:1px solid var(--line)}
.hero__trust li{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:600;color:var(--text)}
.hero__trust i{color:var(--accent);font-size:15px}
.hero__visual{padding-left:34px}
.hero__figure{
  position:relative;border-radius:20px;overflow:visible;
}
.hero__figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:20px;box-shadow:var(--shadow-1);background:var(--tint);
}
.hero__float{
  position:absolute;right:14px;bottom:-22px;min-width:212px;
  background:#fff;border:1px solid var(--border);border-radius:14px;
  padding:14px 18px;box-shadow:var(--shadow-2);
}
.hero__float-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:5px 0;font-size:13px;color:var(--muted)}
.hero__float-row strong{font-size:17px;color:var(--title);font-weight:800}
.hero__float-row + .hero__float-row{border-top:1px dashed var(--line)}

/* ---------- 通道能力 ---------- */
.cap-grid{display:grid;gap:24px;grid-template-columns:repeat(2,1fr)}
.cap-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:30px;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.cap-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.cap-card__icon{
  width:46px;height:46px;border-radius:14px;background:var(--tint);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:18px;
}
.cap-card h3{font-size:18px;margin-bottom:10px}
.cap-card p{font-size:15px;color:var(--muted)}

/* ---------- 三步上手 ---------- */
.flow-wrap{display:grid;gap:44px;grid-template-columns:1.7fr 1fr;align-items:center}
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;position:relative}
.flow::before{content:"";position:absolute;left:22px;right:22px;top:20px;height:1px;background:var(--line)}
.flow__item{position:relative;padding-top:0}
.flow__num{
  position:relative;z-index:1;width:40px;height:40px;border-radius:50%;
  background:var(--accent);color:#fff;font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 8px #fff;
}
.flow__item h3{font-size:17px;margin:18px 0 8px}
.flow__item p{font-size:14px;color:var(--muted);line-height:1.8}
.flow-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-1)}

/* ---------- 案例证明 ---------- */
.case{display:grid;gap:44px;align-items:center;grid-template-columns:5fr 7fr}
.case + .case{margin-top:72px}
.case--reverse{grid-template-columns:7fr 5fr}
.case--reverse .case__media{order:2}
.case__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-1);transition:transform .3s var(--ease)}
.case__media:hover img{transform:scale(1.02)}
.case__body h3{font-size:22px;margin-bottom:14px}
.case__body p{color:var(--muted);font-size:15.5px}
.case__result{
  display:inline-flex;align-items:baseline;gap:10px;margin-top:22px;padding:12px 20px;
  border-radius:14px;background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(23,184,144,.22);
}
.case__result b{font-size:26px;font-weight:800;line-height:1}
.case__result span{font-size:13px}

/* ---------- 数据条 ---------- */
.stat-band{
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--tint);border-radius:var(--r-lg);padding:8px 0;border:1px solid #DCE7FA;
}
.stat-band__cell{padding:28px 32px;text-align:center;border-right:1px solid #D3E0F7}
.stat-band__cell:last-child{border-right:none}
.stat-band__num{font-size:32px;font-weight:800;color:var(--primary);line-height:1.2}
.stat-band__label{margin-top:6px;font-size:13px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-aside{position:sticky;top:118px}
.faq-aside h2{font-size:clamp(23px,2.4vw,30px);margin-bottom:12px}
.faq-aside p{color:var(--muted);font-size:15px;margin-bottom:22px}
.accordion{border:none;background:transparent;margin:0}
.accordion-item{border:1px solid var(--border);border-radius:var(--r-lg);background:#fff;margin-bottom:12px;overflow:hidden;transition:box-shadow .22s var(--ease)}
.accordion-item:hover{box-shadow:var(--shadow-1)}
.accordion-title{
  border:none;background:#fff;color:var(--title);
  padding:18px 54px 18px 22px;font-size:16px;font-weight:600;line-height:1.6;
  position:relative;transition:color .2s var(--ease),background-color .2s var(--ease);
}
.accordion-title:hover{color:var(--primary);background:#FBFCFE}
.accordion-title::before,.accordion-title::after{
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  color:var(--primary);font-size:22px;font-weight:400;line-height:1;
  transition:opacity .2s var(--ease);
}
.accordion-title::before{content:"+"}
.accordion-title::after{content:"–";opacity:0}
.accordion-item.is-active .accordion-title{color:var(--primary);background:var(--tint)}
.accordion-item.is-active .accordion-title::before{opacity:0}
.accordion-item.is-active .accordion-title::after{opacity:1}
.accordion-content{border:none;background:#F7FAFF;color:var(--text);padding:4px 22px 22px;font-size:15px;line-height:1.85}
.accordion-content p{margin:0}

/* ---------- CTA ---------- */
.cta{
  position:relative;overflow:hidden;background:var(--tint);
  border:1px solid #DCE7FA;border-radius:20px;padding:52px 56px;
}
.cta::after{
  content:"";position:absolute;top:-40px;right:-60px;width:340px;height:340px;
  background-image:repeating-linear-gradient(120deg,rgba(27,95,217,.14) 0 1px,transparent 1px 18px);
  transform:rotate(6deg);pointer-events:none;
}
.cta__inner{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr 1fr;gap:44px;align-items:center}
.cta h2{font-size:clamp(23px,2.5vw,32px);margin-bottom:12px}
.cta__lead{color:var(--text);font-size:15.5px;max-width:520px}
.cta__form label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:8px}
.field-row{display:flex;gap:12px}
.field-row input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--r-sm);
  border:1px solid #D7E1F0;background:#fff;color:var(--title);font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field-row input::placeholder{color:#9AA9BD}
.field-row input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(27,95,217,.14)}
.cta__hint{margin-top:12px;font-size:13px;color:var(--muted)}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.more-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--primary)}
.more-link i{font-size:12px;transition:transform .2s var(--ease)}
.more-link:hover i{transform:translateX(4px)}
.news-card{
  display:flex;height:100%;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.news-card__link{display:flex;flex-direction:column;width:100%;color:inherit}
.news-card__link:hover{color:inherit}
.news-card__media{background:var(--tint);overflow:hidden}
.news-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease)}
.news-card:hover .news-card__media img{transform:scale(1.03)}
.news-card__body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-card__title{
  font-size:18px;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.news-card:hover .news-card__title{color:var(--primary)}
.news-card__desc{
  font-size:14px;color:var(--muted);line-height:1.8;flex:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted)}
.news-card__meta .dot{width:4px;height:4px;border-radius:50%;background:#C6D2E2}
.news-empty{
  background:#fff;border:1px dashed #D7E1F0;border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;
}
.news-empty i{font-size:26px;color:#A9B9CE}
.news-empty p{margin:14px 0 20px;color:var(--muted);font-size:15px}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand__name{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--title)}
.footer-brand__mark{width:32px;height:32px;border-radius:10px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;flex:none}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--muted);max-width:280px}
.footer-col h4{font-size:15px;margin-bottom:16px}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:14px;color:var(--muted)}
.footer-list a:hover{color:var(--primary)}
.footer-col p{font-size:14px;color:var(--muted);margin-bottom:16px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);margin-left:18px}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .grid-container{padding-left:28px;padding-right:28px}
  .hero__visual{padding-left:0;margin-top:52px}
  .flow-wrap{grid-template-columns:1fr}
  .flow-figure{display:none}
}
@media screen and (max-width:1023px){
  .section{padding:64px 0}
  .hero{padding:36px 0 64px}
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .cap-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr;gap:26px}
  .flow::before{display:none}
  .flow__item{padding-left:58px}
  .flow__num{position:absolute;left:0;top:0;box-shadow:0 0 0 8px #fff}
  .flow__item::before{content:"";position:absolute;left:19px;top:46px;bottom:-26px;width:1px;background:var(--line)}
  .flow__item:last-child::before{display:none}
  .flow__item h3{margin-top:2px}
  .case,.case--reverse{grid-template-columns:1fr;gap:24px}
  .case--reverse .case__media{order:0}
  .case + .case{margin-top:56px}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .cta{padding:40px 32px}
  .cta__inner{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:767px){
  .stat-band{grid-template-columns:1fr;padding:0}
  .stat-band__cell{border-right:none;border-bottom:1px solid #D3E0F7;padding:22px}
  .stat-band__cell:last-child{border-bottom:none}
}
@media screen and (max-width:640px){
  .grid-container{padding-left:20px;padding-right:20px}
  .section{padding:44px 0}
  .brand{font-size:17px}
  .brand__mark{width:30px;height:30px;border-radius:10px}
  .hero__title{font-size:28px}
  .hero__sub{font-size:16px}
  .hero__trust{gap:14px 20px}
  .hero__trust li{font-size:13px}
  .hero__visual{margin-top:44px}
  .hero__figure img{aspect-ratio:16/10;height:auto;max-height:60vw}
  .hero__float{position:static;margin-top:14px;min-width:0}
  .hero__actions .btn{width:100%}
  .cap-card{padding:24px}
  .news-card__body{padding:18px 18px 20px}
  .cta{padding:32px 22px;border-radius:var(--r-lg)}
  .field-row{flex-direction:column}
  .field-row .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-bottom a{margin-left:0;margin-right:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .news-card:hover,.cap-card:hover,.btn:hover{transform:none !important}
}

/* roulang page: article */
:root{
  --primary:#1B5FD9;
  --primary-dark:#1450BE;
  --primary-tint:#E8F0FE;
  --accent:#17B890;
  --highlight:#FF8A4C;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --ink:#0F1B2D;
  --text:#3A4A60;
  --muted:#6B7C93;
  --line:#E3E9F2;
  --line-soft:#EDF1F7;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-rest:0 1px 2px rgba(15,27,45,.04), 0 10px 28px rgba(23,63,141,.06);
  --shadow-hover:0 2px 6px rgba(15,27,45,.06), 0 18px 40px rgba(23,63,141,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --pad-section:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--primary-dark);}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;line-height:1.35;letter-spacing:.2px;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.grid-container{max-width:1200px;width:100%;margin:0 auto;padding:0 32px;}
@media (min-width:1200px){.grid-container{max-width:1260px;}}

/* ---------- Floating capsule nav ---------- */
.site-head{position:sticky;top:0;z-index:60;padding:16px 0 0;transition:padding .24s var(--ease);}
.site-head.is-scrolled{padding-top:8px;}
.navbar{
  display:flex;align-items:center;gap:22px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  backdrop-filter:saturate(180%) blur(14px);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-rest);
  padding:10px 12px 10px 20px;
  transition:box-shadow .24s var(--ease);
}
.site-head.is-scrolled .navbar{box-shadow:var(--shadow-hover);}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:17px;white-space:nowrap;}
.brand:hover{color:var(--primary);}
.brand__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--primary);color:#fff;font-size:14px;font-weight:800;letter-spacing:.5px;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:var(--radius-pill);
  color:var(--text);font-size:15px;font-weight:600;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%) scaleX(0);
  width:22px;height:2px;border-radius:2px;background:var(--primary);
  transition:transform .22s var(--ease);
}
.nav-links a:hover{color:var(--primary);}
.nav-links a:hover::after{transform:translateX(-50%) scaleX(1);}
.nav-links a.is-active{color:var(--primary);background:var(--primary-tint);}
.nav-links a.is-active::after{transform:translateX(-50%) scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:6px;}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:#fff;color:var(--ink);font-size:17px;cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.menu-toggle:hover{border-color:var(--primary);color:var(--primary);}
.drawer{
  display:none;margin-top:10px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-hover);padding:12px;
}
.drawer.is-open{display:block;}
.drawer a{display:block;padding:13px 16px;border-radius:var(--radius-md);color:var(--text);font-weight:600;}
.drawer a.is-active{background:var(--primary-tint);color:var(--primary);}
.drawer .btn{width:100%;margin-top:8px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(27,95,217,.20);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(27,95,217,.26);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(9,32,74,.28);}
.btn-outline{background:#fff;color:var(--primary);border-color:#C9DAF8;}
.btn-outline:hover{background:var(--primary-tint);color:var(--primary-dark);border-color:var(--primary);transform:translateY(-2px);}
.btn-cta{background:var(--highlight);color:#fff;box-shadow:0 8px 20px rgba(255,138,76,.26);}
.btn-cta:hover{background:#F2762F;color:#fff;transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:8px;font-size:13px;font-weight:600;
  background:var(--primary-tint);color:var(--primary);
}
.badge--accent{background:var(--accent);color:#fff;}
.badge--plain{background:#F1F5FB;color:var(--muted);}

/* ---------- Article ---------- */
.article-head{padding:34px 0 0;}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow:hidden;font-size:13px;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#B9C6D8;}
.crumb .now{color:var(--text);max-width:46ch;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.article-title{
  font-size:44px;font-weight:800;line-height:1.3;margin:18px 0 16px;max-width:900px;
}
.article-meta{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);padding-bottom:22px;
}
.article-meta .bar{width:1px;height:12px;background:var(--line);}
.article-hero{
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-rest);
  aspect-ratio:21/9;background:#E9EFF8;margin-bottom:40px;
}
.article-hero img{width:100%;height:100%;object-fit:cover;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:56px;padding-bottom:var(--pad-section);}
.article-panel{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-rest);padding:44px 48px;
}
.article-aside{align-self:start;position:sticky;top:104px;}
.aside-card{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-rest);padding:22px;margin-bottom:18px;
}
.aside-card h4{font-size:15px;margin-bottom:10px;}
.aside-card p{font-size:13px;color:var(--muted);line-height:1.8;margin-bottom:14px;}
.aside-list{list-style:none;display:grid;gap:9px;}
.aside-list li{font-size:13.5px;color:var(--text);display:flex;gap:8px;align-items:flex-start;line-height:1.7;}
.aside-list i{color:var(--accent);margin-top:5px;font-size:11px;}

.prose{font-size:16.5px;line-height:1.9;color:var(--text);}
.prose > *:first-child{margin-top:0;}
.prose h2{
  position:relative;font-size:26px;font-weight:700;color:var(--ink);
  margin:2em 0 .8em;padding-left:14px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.32em;width:3px;height:1em;border-radius:2px;background:var(--primary);
}
.prose h3{font-size:20px;margin:1.5em 0 .6em;color:var(--ink);}
.prose p{margin:0 0 1.2em;}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.4em;}
.prose li{margin-bottom:.5em;}
.prose blockquote{
  margin:0 0 1.4em;padding:16px 20px;border-left:3px solid var(--primary);
  background:var(--primary-tint);border-radius:0 var(--radius-md) var(--radius-md) 0;color:#2C3E58;
}
.prose img{border-radius:var(--radius-md);margin:1.4em 0;width:100%;height:auto;}
.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--primary-dark);}
.prose table{width:100%;border-collapse:collapse;font-size:14.5px;margin:1.4em 0;}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.prose th{background:var(--bg);color:var(--ink);font-weight:600;}
.prose code{background:#F1F5FB;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--primary-dark);}

.empty-state{
  text-align:center;padding:70px 20px;color:var(--muted);
}
.empty-state i{font-size:34px;color:#C4D2E6;display:block;margin-bottom:14px;}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{margin-bottom:22px;}

.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:34px;}
.tag-pill{
  padding:6px 14px;border-radius:var(--radius-pill);background:#F1F5FB;
  color:var(--muted);font-size:13px;border:1px solid var(--line-soft);
}
.article-foot{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  margin-top:32px;padding-top:26px;border-top:1px solid var(--line);
}
.link-more{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;}
.link-more i{transition:transform .2s var(--ease);font-size:12px;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- Related ---------- */
.related{padding:0 0 var(--pad-section);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:30px;}
.section-head p{margin:8px 0 0;color:var(--muted);font-size:15px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-rest);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.card__media{aspect-ratio:16/9;overflow:hidden;background:#E9EFF8;}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card__media img{transform:scale(1.03);}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card__title{font-size:17.5px;font-weight:700;color:var(--ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card:hover .card__title{color:var(--primary);}
.card__meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-top:auto;}

/* ---------- CTA ---------- */
.cta-band{
  background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:56px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;}
.cta-inner h2{font-size:26px;margin-bottom:8px;}
.cta-inner p{margin:0;color:var(--muted);font-size:15px;}

/* ---------- Footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand__name{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);font-size:17px;margin-bottom:14px;}
.footer-brand__mark{
  display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;
  border-radius:10px;background:var(--primary);color:#fff;font-size:13px;font-weight:800;
}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;max-width:320px;}
.footer-col h4{font-size:15px;margin-bottom:14px;}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.8;margin:0 0 14px;}
.footer-list{list-style:none;display:grid;gap:10px;font-size:14px;}
.footer-list a{color:var(--muted);}
.footer-list a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.footer-bottom span a{color:var(--muted);margin-left:16px;}
.footer-bottom span a:hover{color:var(--primary);}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  :root{--pad-section:64px;}
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .nav-cta-desktop{display:none;}
  .article-title{font-size:32px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:34px;}
  .article-aside{position:static;}
  .article-panel{padding:34px 30px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-inner h2{font-size:23px;}
}
@media (max-width:640px){
  :root{--pad-section:44px;}
  .grid-container{padding:0 20px;}
  .site-head{padding-top:10px;}
  .navbar{padding:8px 10px 8px 14px;gap:12px;}
  .brand{font-size:15px;}
  .brand__mark{width:30px;height:30px;font-size:12px;}
  .article-title{font-size:26px;}
  .article-head{padding-top:22px;}
  .article-hero{aspect-ratio:16/9;margin-bottom:26px;}
  .article-panel{padding:24px 20px;}
  .prose{font-size:15.5px;}
  .prose h2{font-size:21px;}
  .prose h3{font-size:18px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-bottom span a{margin-left:0;margin-right:16px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .article-foot{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .card:hover{transform:none;}
  .card:hover .card__media img{transform:none;}
}

/* roulang page: category1 */
:root{
  --primary:#1B5FD9;
  --primary-dark:#1450BE;
  --primary-tint:#E8F0FE;
  --accent:#17B890;
  --highlight:#FF8A4C;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --ink:#0F1B2D;
  --text:#3A4A60;
  --muted:#6B7C93;
  --line:#E3E9F2;
  --line-soft:#EDF1F7;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow-1:0 1px 2px rgba(15,27,45,.04),0 10px 28px rgba(23,63,141,.06);
  --shadow-2:0 2px 6px rgba(15,27,45,.06),0 18px 40px rgba(23,63,141,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","SF Pro Display","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--primary-dark);}
button,input{font-family:inherit;}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;line-height:1.35;letter-spacing:.01em;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.grid-container{max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;width:100%;}
.grid-container.full{max-width:1280px;}

/* ============ 悬浮胶囊导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:16px 0 6px;
  transition:padding .22s var(--ease);
}
.site-header.is-scrolled{padding-top:8px;}
.nav-shell{
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:10px 14px 10px 22px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled .nav-shell{box-shadow:var(--shadow-2);}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:var(--ink);
  white-space:nowrap;
  letter-spacing:.01em;
}
.brand:hover{color:var(--ink);}
.brand__mark{
  width:34px;height:34px;
  flex:0 0 34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:var(--primary);
  color:#fff;
  font-family:var(--font-num);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  font-size:15px;
  font-weight:600;
  color:var(--text);
  border-radius:999px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;bottom:4px;
  width:0;height:2px;
  background:var(--primary);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width .22s var(--ease);
}
.nav-links a:hover{color:var(--primary);}
.nav-links a:hover::after{width:20px;}
.nav-links a.is-active{color:var(--primary);background:var(--primary-tint);}
.nav-links a.is-active::after{width:0;}
.nav-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:14px;
  color:var(--ink);
  font-size:17px;
  cursor:pointer;
}
.nav-drawer{
  display:none;
  max-width:1200px;
  margin:10px auto 0;
  padding:14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-2);
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:block;
  padding:13px 16px;
  border-radius:var(--radius-sm);
  font-size:16px;
  font-weight:600;
  color:var(--text);
}
.nav-drawer a:hover,.nav-drawer a.is-active{background:var(--primary-tint);color:var(--primary);}
.nav-drawer .btn{width:100%;margin-top:10px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  font-size:15px;
  font-weight:600;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--highlight);color:#fff;box-shadow:0 8px 20px rgba(255,138,76,.28);}
.btn-primary:hover{background:#F5783A;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,138,76,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.16);}
.btn-solid{background:var(--primary);color:#fff;}
.btn-solid:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-solid:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18);}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-tint);color:var(--primary-dark);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(23,63,141,.12);}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--white{background:#fff;}
.section--soft{background:var(--bg);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;margin-bottom:16px;
  font-size:13px;font-weight:600;
  color:var(--primary);
  background:var(--primary-tint);
  border-radius:8px;
}
.section-head h2{font-size:32px;margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--muted);margin:0;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 页首横幅 ============ */
.page-banner{padding-top:24px;}
.banner-media{
  position:relative;
  aspect-ratio:21/9;
  border-radius:var(--radius);
  overflow:hidden;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  box-shadow:var(--shadow-1);
}
.banner-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(15,27,45,.42) 0%,rgba(15,27,45,.10) 58%,rgba(15,27,45,0) 100%);
}
.banner-tag{
  position:absolute;
  left:24px;bottom:24px;
  z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;
  background:#fff;
  border-radius:999px;
  font-size:13px;font-weight:600;color:var(--primary);
  box-shadow:var(--shadow-1);
}
.page-intro{padding:36px 0 0;max-width:820px;}
.page-intro h1{font-size:40px;margin-bottom:16px;}
.page-intro .lede{font-size:18px;color:var(--text);margin-bottom:22px;}
.intro-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;
  font-size:13px;font-weight:600;
  color:var(--primary);
  background:var(--primary-tint);
  border-radius:999px;
}
.chip--plain{background:#fff;color:var(--muted);border:1px solid var(--line);}

/* ============ 安全要点 · 左右对照 ============ */
.compare-grid{margin-top:8px;}
.point-list{display:flex;flex-direction:column;gap:16px;}
.point-card{
  display:flex;gap:18px;
  padding:22px 24px;
  background:#fff;
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line);}
.point-card__num{
  flex:0 0 44px;
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--primary-tint);
  color:var(--primary);
  font-family:var(--font-num);
  font-weight:700;
  font-size:15px;
}
.point-card h3{font-size:18px;margin-bottom:8px;}
.point-card p{margin:0;font-size:15px;color:var(--text);}

.side-panel{position:sticky;top:104px;}
.side-card{
  background:#fff;
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  padding:26px 24px;
}
.side-card__title{font-size:18px;margin-bottom:6px;}
.side-card__sub{font-size:13px;color:var(--muted);margin-bottom:18px;}
.side-list{display:flex;flex-direction:column;gap:12px;margin-bottom:22px;}
.side-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;
  padding-bottom:12px;
  border-bottom:1px dashed var(--line);
}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list i{color:var(--accent);margin-top:5px;font-size:13px;}
.side-note{
  margin-top:14px;
  font-size:13px;color:var(--muted);text-align:center;
}
.side-figure{
  margin-top:18px;
  border-radius:var(--radius-sm);
  overflow:hidden;
  background:#fff;
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow-1);
}
.side-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ============ 通道类型 · 主次双栏 ============ */
.channel-main{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius);
  background:#fff;
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow-1);
}
.channel-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.channel-main__body{padding:26px 28px 30px;}
.channel-main__body h3{font-size:22px;margin-bottom:12px;}
.channel-main__body p{margin:0 0 16px;font-size:15px;}
.channel-rows{display:flex;flex-direction:column;gap:14px;}
.channel-row{
  display:flex;gap:16px;align-items:center;
  padding:16px 18px;
  background:#fff;
  border:1px solid var(--line-soft);
  border-radius:var(--radius-sm);
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.channel-row:hover{transform:translateX(4px);box-shadow:var(--shadow-2);}
.channel-row__icon{
  flex:0 0 42px;width:42px;height:42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--primary-tint);
  color:var(--primary);
  font-size:16px;
}
.channel-row h4{font-size:16px;margin-bottom:2px;}
.channel-row p{margin:0;font-size:13px;color:var(--muted);}

/* ============ 自检清单 ============ */
.checklist{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px 28px;
  margin-top:8px;
}
.checklist li{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;
  background:#fff;
  border:1px solid var(--line-soft);
  border-radius:var(--radius-sm);
  font-size:15px;
  transition:box-shadow .2s var(--ease);
}
.checklist li:hover{box-shadow:var(--shadow-1);}
.checklist i{color:var(--accent);margin-top:5px;font-size:14px;}

/* ============ 处理顺序 · 横向流程轴 ============ */
.flow-axis{display:flex;gap:0;margin-top:12px;}
.flow-node{flex:1;position:relative;padding-right:26px;}
.flow-node:last-child{padding-right:0;}
.flow-node::before{
  content:"";
  position:absolute;left:44px;right:0;top:22px;
  height:1px;background:var(--line);
}
.flow-node:last-child::before{display:none;}
.flow-node__num{
  position:relative;z-index:1;
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--accent);
  color:#fff;
  font-family:var(--font-num);
  font-weight:700;
  font-size:15px;
  margin-bottom:18px;
}
.flow-node h3{font-size:18px;margin-bottom:8px;}
.flow-node p{font-size:15px;color:var(--text);margin:0;}
.flow-figure{
  margin-top:36px;
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.flow-figure img{width:100%;aspect-ratio:16/7;object-fit:cover;}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  background:var(--primary-tint);
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid #D8E4FA;
}
.stat-cell{padding:30px 26px;text-align:center;}
.stat-cell + .stat-cell{border-left:1px solid #CFDEFA;}
.stat-cell .num{
  display:block;
  font-family:var(--font-num);
  font-size:32px;
  font-weight:800;
  color:var(--primary);
  line-height:1.2;
}
.stat-cell .label{display:block;margin-top:8px;font-size:13px;color:var(--muted);}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-wrap .accordion{
  margin:0;
  background:transparent;
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.faq-wrap .accordion-item{background:#fff;border-bottom:1px solid var(--line-soft);}
.faq-wrap .accordion-item:last-child{border-bottom:0;}
.faq-wrap .accordion-title{
  position:relative;
  display:block;
  padding:18px 56px 18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
  border:0;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-wrap .accordion-title:hover{background:var(--primary-tint);color:var(--primary);}
.faq-wrap .accordion-title::before{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:22px;top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--primary);
  transition:transform .22s var(--ease);
}
.faq-wrap .accordion-title[aria-expanded="true"]::before{content:"\f068";}
.faq-wrap .accordion-content{
  padding:6px 22px 22px;
  background:var(--bg);
  border:0;
  font-size:15px;
  line-height:1.85;
  color:var(--text);
}
.faq-wrap .accordion-content p{margin:0;}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  background:var(--primary-tint);
  padding:52px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:34px;
  border:1px solid #DCE7FB;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:300px;height:300px;
  background-image:radial-gradient(var(--primary) 1.6px,transparent 1.6px);
  background-size:18px 18px;
  opacity:.14;
  pointer-events:none;
}
.cta-band__text{position:relative;z-index:1;max-width:640px;}
.cta-band h2{font-size:30px;margin-bottom:12px;}
.cta-band p{margin:0;font-size:16px;color:var(--text);}
.cta-band__action{position:relative;z-index:1;text-align:center;flex:0 0 auto;}
.cta-band__action .hint{margin-top:12px;font-size:13px;color:var(--muted);}

/* ============ 页脚 ============ */
.site-footer{
  background:#fff;
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand__name{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:800;color:var(--ink);
  margin-bottom:14px;
}
.footer-brand__mark{
  width:34px;height:34px;flex:0 0 34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;background:var(--primary);color:#fff;
  font-family:var(--font-num);font-size:14px;font-weight:700;
}
.footer-brand p{font-size:14px;color:var(--muted);margin:0;max-width:320px;}
.footer-col h4{font-size:15px;margin-bottom:16px;}
.footer-col p{font-size:14px;color:var(--muted);margin:0 0 16px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:var(--text);}
.footer-list a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:var(--muted);
  flex-wrap:wrap;
}
.footer-bottom a{font-size:13px;color:var(--muted);margin-left:16px;}
.footer-bottom a:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .grid-container{padding-left:24px;padding-right:24px;}
  .section{padding:64px 0;}
  .page-intro h1{font-size:32px;}
  .section-head h2{font-size:27px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-cta .btn{display:none;}
  .side-panel{position:static;margin-top:26px;}
  .checklist{grid-template-columns:1fr;}
  .flow-axis{flex-direction:column;gap:28px;}
  .flow-node{padding-right:0;padding-left:64px;}
  .flow-node::before{
    left:22px;right:auto;top:0;bottom:-28px;
    width:1px;height:auto;
    transform:none;
  }
  .flow-node:last-child::before{display:none;}
  .flow-node__num{position:absolute;left:0;top:0;margin-bottom:0;}
  .flow-node h3{margin-top:6px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 30px;}
  .cta-band__action{text-align:left;width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  body{font-size:15px;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:44px 0;}
  .section--tight{padding:40px 0;}
  .site-header{padding-top:12px;}
  .nav-shell{padding:8px 10px 8px 14px;gap:10px;}
  .brand{font-size:15px;gap:8px;}
  .brand__mark{width:30px;height:30px;flex-basis:30px;border-radius:9px;font-size:12px;}
  .banner-media{aspect-ratio:16/9;}
  .page-intro h1{font-size:26px;}
  .page-intro .lede{font-size:16px;}
  .section-head h2{font-size:23px;}
  .point-card{padding:18px 16px;gap:14px;}
  .point-card__num{flex-basis:38px;width:38px;height:38px;font-size:14px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-cell + .stat-cell{border-left:0;border-top:1px solid #CFDEFA;}
  .cta-band{padding:32px 22px;border-radius:var(--radius);}
  .cta-band h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-bottom a{margin-left:0;margin-right:16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
  .btn:hover,.point-card:hover,.channel-row:hover{transform:none !important;}
}

/* roulang page: category2 */
/* ============================================================
   mk体育官网登录 · 设计系统
   ============================================================ */
:root{
  --primary:#1B5FD9;
  --primary-dark:#1450BE;
  --tint:#E8F0FE;
  --tint-deep:#D6E4FC;
  --accent:#17B890;
  --accent-tint:#E3F7F1;
  --highlight:#FF8A4C;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --head:#0F1B2D;
  --text:#3A4A60;
  --muted:#6B7C93;
  --line:#E3E9F2;
  --card-line:#EDF1F7;
  --radius-xl:20px;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,27,45,.04), 0 10px 28px rgba(23,63,141,.06);
  --shadow-2:0 2px 6px rgba(15,27,45,.06), 0 18px 40px rgba(23,63,141,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap-section:88px;
}

/* ---------- reset / base ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px;}
body{
  margin:0;
  font-family:'Inter',-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{
  margin:0;
  color:var(--head);
  font-family:'Inter',-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  font-weight:700;
  line-height:1.35;
  letter-spacing:-.01em;
}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--primary-dark);}
img{max-width:100%;display:block;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font:inherit;color:inherit;}
::selection{background:var(--tint-deep);color:var(--head);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

/* ---------- 容器 ---------- */
.grid-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.grid-container.full{padding-left:0;padding-right:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:0 26px;
  height:50px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  background:var(--highlight);
  color:#fff;
  box-shadow:0 8px 20px rgba(255,138,76,.28);
}
.btn-primary:hover{background:#F97A38;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,138,76,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.14);}
.btn-blue{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(27,95,217,.24);}
.btn-blue:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(27,95,217,.3);}
.btn-blue:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.14);}
.btn-outline{
  background:#fff;
  color:var(--primary);
  border:1px solid var(--primary);
}
.btn-outline:hover{background:var(--tint);color:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.btn-outline:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(27,95,217,.14);}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.5);}
.btn-ghost:hover{background:rgba(255,255,255,.22);color:#fff;}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.btn-text::after{content:"→";transition:transform .2s var(--ease);}
.btn-text:hover::after{transform:translateX(4px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:8px;
  font-size:13px;
  font-weight:600;
  line-height:1.5;
  background:var(--tint);
  color:var(--primary);
}
.badge-accent{background:var(--accent-tint);color:#0E8A6B;}
.badge-solid{background:var(--accent);color:#fff;}
.badge-warm{background:#FFF1E8;color:#D96A2B;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--primary);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px;}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:16px 20px 0;
  transition:padding .25s var(--ease);
}
.nav-shell{
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 14px 10px 20px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  backdrop-filter:saturate(180%) blur(14px);
  border:1px solid var(--card-line);
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s var(--ease),padding .25s var(--ease);
}
.site-header.is-scrolled{padding-top:8px;}
.site-header.is-scrolled .nav-shell{padding-top:6px;padding-bottom:6px;box-shadow:var(--shadow-2);}
.brand{
  display:flex;align-items:center;gap:10px;
  flex:0 0 auto;
  color:var(--head);
  font-weight:800;
  font-size:17px;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--head);}
.brand__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  background:var(--primary);color:#fff;
  font-size:13px;font-weight:800;letter-spacing:.02em;
}
.nav-links{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  color:var(--text);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;left:50%;bottom:4px;
  width:0;height:2px;border-radius:2px;
  background:var(--primary);
  transform:translateX(-50%);
  transition:width .22s var(--ease);
}
.nav-links a:hover{color:var(--primary);}
.nav-links a:hover::after{width:22px;}
.nav-links a.is-active{color:var(--primary);background:var(--tint);}
.nav-links a.is-active::after{width:0;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:6px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--radius-pill);
  border:1px solid var(--card-line);
  background:#fff;
  align-items:center;justify-content:center;
  flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--head);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--gap-section) 0;}
.section--tint{background:#fff;}
.section--plain{background:transparent;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:32px;margin:14px 0 14px;}
.section-head p{color:var(--muted);font-size:16px;margin:0;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head--center .eyebrow{justify-content:center;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- 顶部横幅 ---------- */
.banner{padding:24px 0 0;}
.banner__inner{position:relative;}
.banner__media{
  position:relative;
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  aspect-ratio:16 / 6.2;
  background:#DDE7F7;
}
.banner__media img{width:100%;height:100%;object-fit:cover;object-position:center 40%;}
.banner__scrim{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,27,45,.58) 0%,rgba(15,27,45,.18) 52%,rgba(15,27,45,0) 100%);
}
.banner__tagline{
  position:absolute;left:36px;top:34px;
  display:flex;gap:10px;flex-wrap:wrap;
}
.banner__tagline span{
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.9);
  color:var(--primary);
  font-size:13px;font-weight:600;
}
.banner__panel{
  position:relative;
  margin:-72px 0 0 24px;
  max-width:760px;
  background:var(--card);
  border:1px solid var(--card-line);
  border-radius:var(--radius-xl);
  padding:38px 40px 34px;
  box-shadow:var(--shadow-2);
}
.banner__panel h1{
  font-size:42px;
  line-height:1.28;
  margin:14px 0 16px;
  font-weight:800;
}
.banner__panel .lede{font-size:17px;color:var(--muted);margin-bottom:24px;}
.banner__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.banner__facts{
  display:flex;flex-wrap:wrap;gap:26px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.banner__facts li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--muted);}
.banner__facts b{color:var(--head);font-size:15px;font-weight:700;}
.dot{
  width:9px;height:9px;border-radius:50%;
  background:var(--accent);
  flex:0 0 auto;
  box-shadow:0 0 0 4px var(--accent-tint);
}

/* ---------- 场景标签条 ---------- */
.tagbar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:14px;
  background:#fff;
  border:1px solid var(--card-line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  margin-bottom:38px;
}
.tagbar a{
  padding:8px 18px;
  border-radius:var(--radius-pill);
  font-size:14px;
  font-weight:600;
  color:var(--text);
  background:var(--bg);
  border:1px solid transparent;
  transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.tagbar a:hover{color:var(--primary);background:var(--tint);border-color:var(--tint-deep);}
.tagbar a.is-current{color:var(--primary);background:var(--tint);border-color:var(--tint-deep);}

/* ---------- 卡片矩阵 ---------- */
.matrix{margin:0 -14px;}
.matrix > .cell{padding:0 14px 28px;}
.fx-card{
  height:100%;
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--card-line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.fx-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.fx-card__media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16 / 9;
  background:#E7EEF9;
}
.fx-card--wide .fx-card__media{aspect-ratio:16 / 7.4;}
.fx-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.fx-card:hover .fx-card__media img{transform:scale(1.03);}
.fx-card__body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1;}
.fx-card__body h3{font-size:20px;margin:12px 0 10px;}
.fx-card__body p{color:var(--muted);font-size:15px;line-height:1.8;margin-bottom:18px;}
.fx-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}
.fx-card__meta{font-size:13px;color:var(--muted);}

/* ---------- 分栏图文 ---------- */
.split .cell{padding-bottom:24px;}
.split__media{
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  aspect-ratio:4 / 3;
  background:#E7EEF9;
}
.split__media img{width:100%;height:100%;object-fit:cover;}
.split__copy h2{font-size:30px;margin:14px 0 14px;}
.split__copy > p{color:var(--muted);margin-bottom:20px;}
.check-list li{
  display:flex;gap:12px;
  padding:14px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
  color:var(--text);
}
.check-list li:last-child{border-bottom:0;}
.check-list .tick{
  flex:0 0 auto;
  width:22px;height:22px;margin-top:4px;
  border-radius:50%;
  background:var(--accent-tint);
  color:#0E8A6B;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;
}
.check-list b{color:var(--head);}

/* ---------- 步骤轴 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:26px;
  position:relative;
  padding-top:14px;
}
.steps::before{
  content:"";
  position:absolute;
  left:9%;right:9%;top:34px;
  height:1px;
  background:var(--line);
}
.step{position:relative;padding-top:0;}
.step__num{
  position:relative;
  z-index:1;
  width:44px;height:44px;
  border-radius:50%;
  background:var(--accent);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:16px;
  box-shadow:0 0 0 8px var(--bg),0 8px 18px rgba(23,184,144,.28);
  margin-bottom:20px;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);margin:0;line-height:1.8;}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  background:var(--tint);
  border-radius:var(--radius);
  padding:34px 10px;
}
.stat{
  text-align:center;
  padding:6px 22px;
  border-right:1px solid rgba(27,95,217,.16);
}
.stat:last-child{border-right:0;}
.stat__num{font-size:32px;font-weight:800;color:var(--primary);line-height:1.2;letter-spacing:-.02em;}
.stat__label{font-size:13px;color:var(--muted);margin-top:6px;}

/* ---------- 角色入口小卡 ---------- */
.role-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.role-card{
  background:#fff;
  border:1px solid var(--card-line);
  border-radius:var(--radius-sm);
  padding:24px 24px 22px;
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.role-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.role-card h3{font-size:17px;margin:12px 0 8px;}
.role-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.accordion{background:transparent;border:0;margin:0;border-radius:0;}
.accordion .accordion-item{
  border:0;
  border-bottom:1px solid var(--line);
  background:transparent;
}
.accordion .accordion-item:first-child{border-top:1px solid var(--line);}
.accordion .accordion-title{
  position:relative;
  display:block;
  padding:20px 60px 20px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--head);
  border:0;
  background:transparent;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.accordion .accordion-title:hover{color:var(--primary);background:#fff;}
.accordion .accordion-title::before{
  content:"";
  position:absolute;right:24px;top:50%;
  width:14px;height:2px;margin:0;border:0;
  background:var(--primary);
  transform:translateY(-50%);
  font-size:0;
}
.accordion .accordion-title::after{
  content:"";
  position:absolute;right:30px;top:50%;
  width:2px;height:14px;
  background:var(--primary);
  transform:translateY(-50%);
  transition:transform .22s var(--ease);
}
.accordion .accordion-item.is-active .accordion-title{color:var(--primary);}
.accordion .accordion-item.is-active .accordion-title::after{transform:translateY(-50%) rotate(90deg);}
.accordion .accordion-content{
  padding:0 60px 22px 22px;
  border:0;
  background:#F4F7FC;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
  border-radius:0 0 var(--radius-xs) var(--radius-xs);
}
.accordion .accordion-content p{margin-bottom:.8em;}
.accordion .accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-xl);
  background:var(--tint);
  padding:52px 56px;
  border:1px solid var(--tint-deep);
}
.cta-block::before{
  content:"";
  position:absolute;
  right:-40px;top:-40px;
  width:280px;height:280px;
  background-image:radial-gradient(var(--primary) 1.6px,transparent 1.6px);
  background-size:16px 16px;
  opacity:.12;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:34px;
  flex-wrap:wrap;
}
.cta-inner h2{font-size:30px;margin-bottom:10px;}
.cta-inner p{color:var(--muted);margin:0;max-width:560px;}
.cta-side{text-align:right;}
.cta-side small{display:block;margin-top:10px;font-size:13px;color:var(--muted);}

/* ---------- 表单位 ---------- */
.form-card{
  background:#fff;
  border:1px solid var(--card-line);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow-1);
}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:13px;font-weight:600;color:var(--head);margin-bottom:8px;}
.form-row input{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:var(--radius-xs);
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-row input::placeholder{color:#9AA9BC;}
.form-row input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(27,95,217,.12);
}
.form-note{font-size:13px;color:var(--muted);margin-top:12px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#fff;
  border-top:1px solid var(--line);
  margin-top:20px;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand__name{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;color:var(--head);
  margin-bottom:14px;
}
.footer-brand__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  background:var(--primary);color:#fff;
  font-size:13px;font-weight:800;
}
.footer-brand p{font-size:14px;color:var(--muted);margin:0;max-width:300px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--head);}
.footer-col p{font-size:14px;color:var(--muted);margin:0 0 16px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:var(--text);}
.footer-list a:hover{color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
}
.footer-bottom a{color:var(--muted);margin-left:18px;}
.footer-bottom a:hover{color:var(--primary);}

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

/* ============================================================
   响应式
   ============================================================ */
@media screen and (max-width:1023px){
  :root{--gap-section:64px;}
  .site-header{padding:12px 16px 0;}
  .grid-container{padding-left:24px;padding-right:24px;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:14px;
    border-radius:var(--radius);
    background:#fff;
    border:1px solid var(--card-line);
    box-shadow:var(--shadow-2);
    margin-left:0;
  }
  .nav-shell{position:relative;}
  .nav-shell.is-open .nav-links{display:flex;}
  .nav-links a{padding:13px 16px;border-radius:var(--radius-xs);font-size:16px;}
  .nav-links a::after{display:none;}
  .nav-actions .btn{display:none;}
  .nav-shell.is-open .nav-actions .btn{display:inline-flex;margin-left:auto;}
  .nav-shell.is-open .nav-actions{gap:8px;}

  .steps{grid-template-columns:repeat(2,1fr);gap:30px 24px;}
  .steps::before{display:none;}
  .step__num{box-shadow:0 0 0 6px var(--bg),0 8px 18px rgba(23,184,144,.26);}
  .role-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .banner__panel h1{font-size:34px;}
  .cta-block{padding:40px 36px;}
}

@media screen and (max-width:767px){
  body{font-size:15px;}
  :root{--gap-section:44px;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .site-header{padding:10px 12px 0;}
  .nav-shell{padding:8px 10px 8px 14px;gap:10px;}
  .brand{font-size:15px;}
  .brand__mark{width:30px;height:30px;border-radius:9px;font-size:12px;}

  .banner{padding:10px 0 0;}
  .banner__media{aspect-ratio:4 / 3;border-radius:var(--radius);}
  .banner__tagline{left:18px;top:16px;}
  .banner__panel{
    margin:-40px 0 0 0;
    padding:26px 22px 24px;
    border-radius:var(--radius);
  }
  .banner__panel h1{font-size:27px;line-height:1.34;}
  .banner__panel .lede{font-size:15px;}
  .banner__actions .btn{flex:1 1 auto;}
  .banner__facts{gap:14px;flex-direction:column;}

  .section-head h2{font-size:23px;}
  .matrix{margin:0;}
  .matrix > .cell{padding:0 0 20px;}
  .fx-card__body{padding:20px;}
  .fx-card__body h3{font-size:18px;}
  .split__copy h2{font-size:22px;}

  .steps{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr;padding:8px 0;}
  .stat{border-right:0;border-bottom:1px solid rgba(27,95,217,.16);padding:18px 22px;}
  .stat:last-child{border-bottom:0;}
  .role-grid{grid-template-columns:1fr;}

  .accordion .accordion-title{padding:16px 52px 16px 16px;font-size:15px;}
  .accordion .accordion-content{padding:0 20px 18px 16px;}

  .cta-block{padding:30px 22px;border-radius:var(--radius);}
  .cta-inner h2{font-size:22px;}
  .cta-side{text-align:left;width:100%;}
  .cta-side .btn{width:100%;}

  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:44px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-bottom a{margin-left:0;margin-right:16px;}
}

/* roulang page: category3 */
:root{
  --primary:#1B5FD9;
  --primary-dark:#1450BE;
  --tint:#E8F0FE;
  --accent:#17B890;
  --highlight:#FF8A4C;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --text:#3A4A60;
  --title:#0F1B2D;
  --muted:#6B7C93;
  --line:#E3E9F2;
  --border:#EDF1F7;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-badge:8px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,45,.04),0 10px 28px rgba(23,63,141,.06);
  --sh-2:0 2px 6px rgba(15,27,45,.06),0 18px 40px rgba(23,63,141,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--title);line-height:1.4;font-weight:700}
p{margin:0}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.grid-container{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:32px;padding-right:32px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;border:1px solid transparent;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(27,95,217,.22)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(27,95,217,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(6,26,64,.22)}
.btn-outline{background:#fff;color:var(--primary);border-color:rgba(27,95,217,.35)}
.btn-outline:hover{background:var(--tint);color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-outline:active{transform:translateY(0)}
.btn-highlight{background:var(--highlight);color:#fff;box-shadow:0 8px 20px rgba(255,138,76,.26)}
.btn-highlight:hover{background:#ef7a37;color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,138,76,.32)}
.btn-highlight:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(120,50,10,.2)}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:var(--r-pill)}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:16px;z-index:60;transition:top .22s var(--ease)}
.nav-shell{
  display:flex;align-items:center;gap:20px;
  padding:10px 12px 10px 20px;
  background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--border);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  transition:padding .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled .nav-shell{padding-top:6px;padding-bottom:6px;box-shadow:var(--sh-2)}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--title);white-space:nowrap}
.brand__mark{
  width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:12px;font-weight:800;letter-spacing:.5px;flex:0 0 34px;
}
.brand__text{font-size:17px;letter-spacing:.2px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-block;padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--text);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-links a:hover{color:var(--primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--primary);background:var(--tint)}
.nav-links a.is-active::after{transform:scaleX(0)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  border:1px solid var(--border);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--title);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-drawer{display:none;margin-top:10px;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:12px}
.nav-drawer a{display:block;padding:14px 16px;border-radius:var(--r-md);font-size:15px;font-weight:600;color:var(--text)}
.nav-drawer a:hover{background:var(--tint);color:var(--primary)}
.nav-drawer a.is-active{background:var(--tint);color:var(--primary)}
.nav-drawer__cta{margin-top:8px}
.nav-drawer__cta .btn{width:100%}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--white{background:#fff}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:32px;font-weight:800;letter-spacing:-.3px;margin-bottom:14px}
.section-head p{font-size:16px;color:var(--muted)}
.pill-label{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--r-pill);
  background:var(--tint);color:var(--primary);
  font-size:13px;font-weight:700;letter-spacing:.5px;margin-bottom:20px;
}

/* ---------- 首屏 ---------- */
.hero-help{position:relative;overflow:hidden;padding:64px 0 56px;background:var(--bg)}
.hero-help::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(27,95,217,.14) 1px,transparent 1px);
  background-size:24px 24px;opacity:.45;pointer-events:none;
}
.hero-help__inner{position:relative;max-width:840px;margin:0 auto;text-align:center}
.hero-help h1{font-size:42px;font-weight:800;line-height:1.3;letter-spacing:-.6px;margin-bottom:18px}
.hero-help__sub{font-size:19px;color:var(--muted);margin-bottom:30px}
.hero-help__actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.quick-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:32px}
.quick-tags a{
  padding:8px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--text);
}
.quick-tags a:hover{border-color:rgba(27,95,217,.35);color:var(--primary);background:var(--tint)}

/* ---------- 数据条 ---------- */
.stat-strip{padding:0 0 88px;background:var(--bg)}
.stat-strip__box{
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--tint);border:1px solid rgba(27,95,217,.12);
  border-radius:var(--r-lg);padding:34px 8px;box-shadow:var(--sh-1);
}
.stat{text-align:center;padding:0 24px}
.stat+.stat{border-left:1px solid rgba(27,95,217,.16)}
.stat__num{display:block;font-size:32px;font-weight:800;color:var(--primary);line-height:1.25;letter-spacing:-.5px}
.stat__num--hl{color:var(--highlight)}
.stat__label{display:block;margin-top:8px;font-size:13px;color:var(--muted)}

/* ---------- 主题速查 ---------- */
.topic-figure{
  margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  border:1px solid var(--border);background:#fff;
}
.topic-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.topic-list{display:grid;gap:14px}
.topic-item{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.topic-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(27,95,217,.2)}
.topic-item__idx{
  flex:0 0 40px;width:40px;height:40px;border-radius:50%;
  background:var(--tint);color:var(--primary);
  display:grid;place-items:center;font-size:14px;font-weight:800;
}
.topic-item h3{font-size:18px;font-weight:700;margin-bottom:6px}
.topic-item p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-section{background:var(--bg)}
.accordion{background:transparent;border:0;margin:0}
.faq-list .accordion-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-list .accordion-item:hover{box-shadow:var(--sh-2)}
.faq-list .accordion-item.is-active{background:var(--tint);border-color:rgba(27,95,217,.2)}
.faq-list .accordion-title{
  position:relative;display:flex;align-items:center;
  min-height:60px;padding:18px 56px 18px 22px;
  font-size:16px;font-weight:600;color:var(--title);
  border:0;background:transparent;line-height:1.6;
}
.faq-list .accordion-title:hover{color:var(--primary);background:transparent}
.faq-list .accordion-title::before{
  content:"+";position:absolute;right:20px;top:50%;
  width:26px;height:26px;border-radius:50%;
  background:var(--tint);color:var(--primary);
  display:grid;place-items:center;font-size:16px;font-weight:700;line-height:1;
  transform:translateY(-50%);
  transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease);
}
.faq-list .accordion-item.is-active .accordion-title::before{
  content:"−";background:var(--primary);color:#fff;transform:translateY(-50%) rotate(180deg);
}
.faq-list .accordion-content{
  background:transparent;border:0;padding:0 22px 20px;
  font-size:15px;color:var(--text);line-height:1.85;
}
.faq-col--offset{padding-top:0}
.faq-note{
  margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:14px;color:var(--muted);
}
.faq-note a{color:var(--primary);font-weight:600}
.faq-note a:hover{text-decoration:underline}

/* ---------- 三步排查 ---------- */
.steps-section{background:#fff}
.step-axis{position:relative;margin-top:34px}
.step{position:relative;display:flex;gap:18px;padding-bottom:30px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:19px;top:48px;bottom:8px;width:1px;background:var(--line)}
.step:last-child::before{display:none}
.step__num{
  flex:0 0 40px;width:40px;height:40px;border-radius:50%;
  background:var(--accent);color:#fff;
  display:grid;place-items:center;font-size:15px;font-weight:800;
  box-shadow:0 6px 16px rgba(23,184,144,.24);
}
.step h3{font-size:19px;font-weight:700;margin-bottom:6px}
.step p{font-size:15px;color:var(--muted);line-height:1.8}
.side-figure{margin:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--sh-1);background:#fff}
.side-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- 表单 ---------- */
.submit-section{background:var(--bg)}
.form-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:30px;box-shadow:var(--sh-1)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:48px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;
  padding:0 16px;font-size:15px;color:var(--title);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  -webkit-appearance:none;appearance:none;
}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 20px) 22px,calc(100% - 15px) 22px;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;
}
.field textarea{height:126px;padding:12px 16px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(27,95,217,.12);
}
.form-tip{font-size:13px;color:var(--muted);margin-top:12px}
.check-list{display:grid;gap:12px;margin-top:22px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text)}
.check-list i{color:var(--accent);margin-top:5px;font-size:14px}

/* ---------- 底部 CTA ---------- */
.cta-section{background:var(--bg);padding:80px 0}
.cta-box{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--tint);border:1px solid rgba(27,95,217,.14);
  border-radius:20px;padding:46px 48px;
}
.cta-box::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background-image:radial-gradient(rgba(27,95,217,.22) 1.5px,transparent 1.5px);
  background-size:16px 16px;pointer-events:none;
}
.cta-box__text{position:relative;max-width:620px}
.cta-box__text h2{font-size:30px;font-weight:800;letter-spacing:-.3px;margin-bottom:12px}
.cta-box__text p{font-size:16px;color:var(--text)}
.cta-box__action{position:relative;text-align:center;flex:0 0 auto}
.cta-box__action span{display:block;margin-top:10px;font-size:13px;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand__name{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--title);margin-bottom:14px}
.footer-brand__mark{
  width:32px;height:32px;border-radius:10px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:12px;font-weight:800;flex:0 0 32px;
}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:300px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:14px;color:var(--muted)}
.footer-list a:hover{color:var(--primary)}
.footer-col p{font-size:14px;color:var(--muted);margin-bottom:16px;line-height:1.8}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);margin-left:16px}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-help h1{font-size:36px}
}
@media (max-width:1023px){
  .grid-container{padding-left:24px;padding-right:24px}
  .nav-links{display:none}
  .nav-actions .btn{display:none}
  .nav-toggle{display:inline-flex}
  .nav-drawer:not([hidden]){display:block}
  .section{padding:64px 0}
  .stat-strip{padding-bottom:64px}
  .hero-help{padding:44px 0 48px}
  .hero-help h1{font-size:30px}
  .hero-help__sub{font-size:17px}
  .section-head h2{font-size:27px}
  .cta-box{padding:36px 32px}
  .cta-box__text h2{font-size:25px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .faq-col--offset{padding-top:0}
}
@media (max-width:767px){
  .section{padding:44px 0}
  .stat-strip{padding-bottom:44px}
  .stat-strip__box{grid-template-columns:1fr;padding:8px}
  .stat{padding:20px 16px}
  .stat+.stat{border-left:0;border-top:1px solid rgba(27,95,217,.16)}
  .stat__num{font-size:28px}
  .hero-help h1{font-size:27px}
  .hero-help__actions .btn{width:100%}
  .section-head h2{font-size:23px}
  .cta-box{flex-direction:column;align-items:flex-start;padding:28px 24px}
  .cta-box__action{width:100%;text-align:left}
  .cta-box__action .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
  .footer-bottom a{margin-left:0;margin-right:16px}
}
@media (max-width:520px){
  .grid-container{padding-left:20px;padding-right:20px}
  .brand__text{font-size:15px}
  .brand__mark{width:30px;height:30px;flex-basis:30px;font-size:11px}
  .hero-help h1{font-size:24px}
  .hero-help__sub{font-size:15px}
  .topic-item{padding:18px}
  .form-card{padding:22px}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
  .btn:hover,.topic-item:hover{transform:none !important}
}