/* roulang page: index */
:root{
  --c-primary:#1B6BB0;
  --c-primary-600:#155A96;
  --c-primary-700:#10497B;
  --c-primary-200:#9CC3E4;
  --c-primary-50:#E7F0F8;
  --c-accent:#0E9E8E;
  --c-accent-50:#E5F5F3;
  --c-highlight:#E1873A;
  --c-bg:#FFFFFF;
  --c-bg-soft:#F5F8FC;
  --c-line:#E3EAF3;
  --c-text:#0F2033;
  --c-text-2:#4A5A6E;
  --c-text-3:#8595A8;
  --c-success:#2E9E6B;
  --c-warn:#C98A22;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,54,86,.05), 0 12px 24px -14px rgba(16,54,86,.18);
  --sh-2:0 2px 4px rgba(16,54,86,.07), 0 20px 36px -16px rgba(16,54,86,.26);
  --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;background:var(--c-bg);color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--c-text);font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
::selection{background:var(--c-primary-50);color:var(--c-primary-700)}

/* 容器 */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:1023px){.container{padding:0 20px}}
@media(max-width:767px){.container{padding:0 16px}}

/* 栅格辅助 */
.grid-x{display:flex;flex-wrap:wrap}
.grid-x.gx{margin-left:-12px;margin-right:-12px}
.grid-x.gx>.cell{padding-left:12px;padding-right:12px}
@media(max-width:767px){.grid-x.gx{margin-left:-8px;margin-right:-8px}.grid-x.gx>.cell{padding-left:8px;padding-right:8px}}

/* 通用元素 */
.tag{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1;color:var(--c-primary-700);background:var(--c-primary-50);padding:7px 12px;border-radius:999px;margin-bottom:18px}
.badge{display:inline-block;font-size:12px;font-weight:600;line-height:1;padding:6px 11px;border-radius:999px;background:var(--c-primary-50);color:var(--c-primary-700)}
.badge-accent{background:var(--c-accent-50);color:#0A7A6E}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;line-height:1;padding:14px 28px;border-radius:var(--r-btn);transition:transform .18s var(--ease),background .18s,box-shadow .18s,border-color .18s,color .18s;white-space:nowrap;min-height:44px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 1px 2px rgba(16,54,86,.08)}
.btn-primary:hover{background:var(--c-primary-600);transform:translateY(-1px);box-shadow:var(--sh-2);color:#fff}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-700)}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-50);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0);background:var(--c-primary-50)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none}
.link-more{font-size:15px;font-weight:600;color:var(--c-primary);border-bottom:1px solid transparent;transition:border-color .18s,color .18s}
.link-more:hover{border-bottom-color:var(--c-primary)}
.section{padding:96px 0}
.section-soft{background:var(--c-bg-soft)}
@media(max-width:1023px){.section{padding:72px 0}}
@media(max-width:767px){.section{padding:56px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:30px;margin-bottom:0}
.section-head .tag{margin-bottom:14px}
@media(max-width:767px){.section-head{flex-direction:column;align-items:flex-start;gap:14px}.section-head h2{font-size:22px}}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:70;background:#fff;border-bottom:1px solid transparent;transition:border-color .2s,box-shadow .2s}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:0 10px 24px -22px rgba(16,54,86,.5)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:10px;background:var(--c-primary-50);color:var(--c-primary)}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;align-items:baseline;gap:2px;font-size:19px;font-weight:700;letter-spacing:-.02em;color:var(--c-text)}
.brand-text .brand-key{color:var(--c-primary)}
.brand-text .brand-sub{font-size:12px;font-weight:500;color:var(--c-text-3);letter-spacing:.02em}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto}
.nav-link{position:relative;display:inline-block;font-size:15px;color:var(--c-text-2);padding:9px 14px;border-radius:999px;transition:background .18s,color .18s}
.nav-link:hover{background:var(--c-primary-50);color:var(--c-primary)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);width:60%;height:2px;border-radius:2px;background:var(--c-primary)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{position:absolute;left:12px;width:16px;height:16px;color:var(--c-text-3);pointer-events:none}
.nav-search input{width:220px;height:42px;padding:0 14px 0 36px;border:1px solid var(--c-line);border-radius:10px;background:var(--c-bg-soft);color:var(--c-text);transition:border-color .18s,background .18s,box-shadow .18s,width .2s var(--ease);font-size:14px}
.nav-search input::placeholder{color:var(--c-text-3)}
.nav-search input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 2px rgba(27,107,176,.14);width:240px}
.btn-text{font-size:15px;font-weight:500;color:var(--c-text-2);padding:8px 6px;border-radius:8px;transition:color .18s}
.btn-text:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px}
.btn-highlight{display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;line-height:1;color:#fff;background:var(--c-highlight);padding:11px 20px;border-radius:999px;min-height:40px;transition:filter .18s,transform .18s var(--ease),box-shadow .18s}
.btn-highlight:hover{filter:brightness(.94);transform:translateY(-1px);box-shadow:0 10px 18px -12px rgba(225,135,58,.9);color:#fff}
.btn-highlight:active{transform:translateY(0)}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--c-line);color:var(--c-text)}
.nav-toggle:hover{background:var(--c-bg-soft)}
.nav-toggle svg{width:20px;height:20px}
.nav-drawer{position:fixed;top:0;right:0;width:302px;max-width:86vw;height:100%;background:#fff;border-left:1px solid var(--c-line);padding:22px 20px 32px;overflow-y:auto;transform:translateX(102%);transition:transform .28s var(--ease);z-index:90}
.nav-drawer.open{transform:translateX(0)}
.nav-drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.nav-drawer-title{font-size:15px;font-weight:700}
.nav-drawer-close{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--c-line)}
.nav-drawer-close:hover{background:var(--c-bg-soft)}
.nav-drawer-close svg{width:16px;height:16px}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}
.drawer-links a{display:block;padding:12px 14px;border-radius:10px;font-size:15px;color:var(--c-text-2);transition:background .18s,color .18s}
.drawer-links a:hover{background:var(--c-primary-50);color:var(--c-primary)}
.drawer-links a.active{background:var(--c-primary-50);color:var(--c-primary);font-weight:600}
.drawer-search{position:relative;margin-bottom:18px}
.drawer-search input{width:100%;height:46px;border:1px solid var(--c-line);border-radius:10px;padding:0 14px;background:var(--c-bg-soft);font-size:14px}
.drawer-search input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 2px rgba(27,107,176,.14)}
.drawer-actions{display:flex;flex-direction:column;gap:10px}
.scrim{position:fixed;inset:0;background:rgba(15,32,51,.36);opacity:0;visibility:hidden;transition:opacity .25s;z-index:80}
.scrim.open{opacity:1;visibility:visible}
@media(max-width:1023px){
  .main-nav,.nav-search,.btn-text{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:60px;gap:12px}
  .brand-text{font-size:17px}
}
@media(max-width:480px){
  .brand-text .brand-sub{display:none}
  .btn-highlight{padding:10px 14px;font-size:13px}
}

/* Hero */
.hero{position:relative;overflow:hidden;padding:96px 0 88px;background:linear-gradient(180deg,#F5F8FC 0%,#FFFFFF 100%)}
.hero::before{content:"";position:absolute;top:-120px;right:-80px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle at center,rgba(27,107,176,.10),rgba(27,107,176,0) 70%)}
.hero::after{content:"";position:absolute;left:-60px;bottom:-140px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle at center,rgba(14,158,142,.10),rgba(14,158,142,0) 70%)}
.hero .container{position:relative;z-index:2}
.hero-grid{align-items:center}
.hero-copy h1{font-size:40px;line-height:1.2;margin-bottom:20px}
.hero-sub{font-size:18px;line-height:1.8;color:var(--c-text-2);max-width:560px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;font-size:14px;color:var(--c-text-2)}
.hero-points li{position:relative;padding-left:16px}
.hero-points li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--c-accent)}
.hero-points li+li{margin-left:6px}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;box-shadow:var(--sh-2)}
.float-card{position:absolute;right:18px;bottom:-26px;background:#fff;border:1px solid var(--c-line);border-radius:14px;box-shadow:var(--sh-2);padding:16px 20px;display:flex;gap:26px}
.float-row{display:flex;flex-direction:column;gap:2px}
.float-num{font-size:24px;font-weight:700;color:var(--c-primary);line-height:1.2}
.float-label{font-size:12px;color:var(--c-text-3);letter-spacing:.02em}
@media(max-width:1023px){
  .hero{padding:72px 0 64px}
  .hero-copy h1{font-size:32px}
  .hero-sub{font-size:17px}
  .hero-visual{margin-top:44px}
  .float-card{right:12px;bottom:-20px}
}
@media(max-width:767px){
  .hero{padding:52px 0 48px}
  .hero-copy h1{font-size:28px;margin-bottom:16px}
  .hero-sub{font-size:16px;margin-bottom:24px}
  .hero-cta .btn{width:100%}
  .float-card{padding:12px 16px;gap:18px}
  .float-num{font-size:20px}
}

/* 主张条带 */
.strip{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.strip-inner{display:flex;align-items:center;gap:22px;padding:26px 0;flex-wrap:wrap}
.strip-tag{flex:0 0 auto;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-accent);background:var(--c-accent-50);padding:7px 12px;border-radius:999px;line-height:1}
.strip-items{display:flex;align-items:center;flex-wrap:wrap;gap:18px;font-size:17px;color:var(--c-text-2)}
.strip-sep{width:1px;height:16px;background:var(--c-line)}
@media(max-width:767px){
  .strip-inner{padding:20px 0;gap:14px}
  .strip-items{font-size:15px;gap:12px}
  .strip-sep{display:none}
}

/* 故事 / 理念 */
.story-media img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:14px;box-shadow:var(--sh-1)}
.story-body h2{font-size:30px;margin-bottom:20px}
.story-body p{color:var(--c-text-2);margin-bottom:18px;font-size:16px}
.timeline{margin-top:30px;border-left:1px solid var(--c-line);padding-left:26px;display:flex;flex-direction:column;gap:22px}
.timeline li{position:relative}
.timeline li::before{content:"";position:absolute;left:-31px;top:.6em;width:9px;height:9px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 0 4px var(--c-primary-50)}
.tl-year{display:block;font-size:13px;font-weight:600;color:var(--c-primary);letter-spacing:.04em}
.tl-text{display:block;font-size:16px;color:var(--c-text)}
@media(max-width:1023px){
  .story-media{margin-bottom:32px}
  .story-media img{aspect-ratio:16/10}
  .story-body h2{font-size:24px}
}
@media(max-width:767px){
  .story-body h2{font-size:22px}
}

/* 卡片 */
.card{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(27,107,176,.3)}
.card:hover .card-title{color:var(--c-primary)}
.card-media{display:block;overflow:hidden;background:var(--c-primary-50)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:20px;line-height:1.45;font-weight:600;transition:color .18s}
.card-desc{font-size:14.5px;line-height:1.75;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-top:auto}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-text-3)}
.card-lead .card-media img{aspect-ratio:16/10}
.card-lead .card-title{font-size:24px}
.card-lead .card-body{padding:26px 28px 28px}
.card-mini{flex-direction:row;align-items:stretch;margin-bottom:16px}
.card-mini .card-media{flex:0 0 168px;border-radius:0}
.card-mini .card-media img{aspect-ratio:4/3;height:100%}
.card-mini .card-body{padding:16px 18px;gap:8px}
.card-mini .card-title{font-size:16px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-mini .card-desc{font-size:13.5px;-webkit-line-clamp:2}
.card-grid-3{margin-top:8px}
.card-grid-3 .card-media img{aspect-ratio:16/10}
.card-grid-3 .card{padding:0}
.cms-block{margin-top:34px}
.empty-state{border:1px dashed var(--c-line);background:var(--c-bg-soft);border-radius:14px;min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:32px 20px}
.empty-state svg{width:42px;height:42px;color:var(--c-primary-200)}
.empty-state p{font-size:15px;color:var(--c-text-2)}
@media(max-width:1023px){
  .card-mini{flex-direction:row}
  .card-mini .card-media{flex:0 0 140px}
  .card-lead{margin-bottom:24px}
}
@media(max-width:767px){
  .card-mini{flex-direction:column;margin-bottom:16px}
  .card-mini .card-media{flex:none;border-radius:0}
  .card-mini .card-media img{aspect-ratio:16/10}
  .card-lead .card-title{font-size:20px}
  .card-lead .card-body{padding:20px}
  .card-body{padding:18px 18px 20px}
  .card-title{font-size:18px}
  .card-grid-3 .card{margin-bottom:16px}
}

/* 信任背书 */
.trust-grid{align-items:center}
.trust-metrics{display:flex;flex-wrap:wrap;gap:0}
.metric{flex:1 1 140px;padding:0 22px;border-left:1px solid var(--c-line)}
.metric:first-child{border-left:0;padding-left:0}
.metric-num{font-size:36px;font-weight:700;color:var(--c-primary);line-height:1.15;letter-spacing:-.02em}
.metric-label{font-size:14px;color:var(--c-text-2);margin-top:6px}
.trust-certs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.cert{border:1px solid var(--c-line);background:#fff;border-radius:10px;min-height:76px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:13.5px;color:var(--c-text-2);padding:10px;transition:border-color .18s,color .18s,transform .18s var(--ease)}
.cert:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
@media(max-width:1023px){
  .trust-metrics{margin-bottom:32px}
  .trust-certs{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:767px){
  .metric{flex:1 1 100%;padding:16px 0;border-left:0;border-top:1px solid var(--c-line)}
  .metric:first-child{border-top:0;padding-top:0}
  .trust-certs{grid-template-columns:repeat(2,1fr)}
}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto}
.acc{display:flex;flex-direction:column;gap:12px}
.acc-item{background:#fff;border:1px solid var(--c-line);border-radius:14px;transition:border-color .18s,box-shadow .18s}
.acc-item.open{border-color:rgba(27,107,176,.28);box-shadow:var(--sh-1)}
.acc-head{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;padding:20px 24px;font-size:17px;font-weight:600;color:var(--c-text);transition:color .18s}
.acc-head:hover{color:var(--c-primary)}
.acc-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.acc-icon::before,.acc-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .22s var(--ease),opacity .22s}
.acc-icon::before{left:0;top:9px;width:20px;height:2px}
.acc-icon::after{left:9px;top:0;width:2px;height:20px}
.acc-item.open .acc-icon::after{transform:rotate(90deg);opacity:0}
.acc-body{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.acc-body p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
@media(max-width:767px){
  .acc-head{padding:16px 18px;font-size:15.5px}
  .acc-body p{padding:0 18px 18px;font-size:14.5px}
}

/* 订阅条 */
.subscribe{background:var(--c-bg-soft);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:64px 0}
.subscribe-inner{display:flex;flex-wrap:wrap;align-items:center;gap:32px}
.subscribe-copy{flex:1 1 320px}
.subscribe-copy h2{font-size:26px;margin-bottom:10px}
.subscribe-copy p{font-size:15px;color:var(--c-text-2)}
.subscribe-form{flex:1 1 420px;display:flex;gap:12px}
.subscribe-form input{flex:1 1 auto;height:48px;border:1px solid var(--c-line);border-radius:10px;padding:0 16px;background:#fff;font-size:15px;transition:border-color .18s,box-shadow .18s}
.subscribe-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(27,107,176,.14)}
.subscribe-form input.is-error{border-color:var(--c-warn)}
.subscribe-form input.is-ok{border-color:var(--c-success)}
.subscribe-note{flex:1 1 100%;font-size:13px;color:var(--c-text-3);margin-top:-14px}
.subscribe-msg{flex:1 1 100%;font-size:13px;min-height:18px}
.subscribe-msg.err{color:var(--c-warn)}
.subscribe-msg.ok{color:var(--c-success)}
@media(max-width:767px){
  .subscribe{padding:48px 0}
  .subscribe-form{flex-direction:column}
  .subscribe-form .btn{width:100%}
  .subscribe-copy h2{font-size:22px}
}

/* CTA 带 */
.cta-band{position:relative;padding:96px 0;background-image:linear-gradient(90deg,rgba(255,255,255,.94),rgba(255,255,255,.88)),url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;border-bottom:1px solid var(--c-line)}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:36px}
.cta-copy{flex:1 1 480px}
.cta-copy h2{font-size:30px;margin-bottom:14px}
.cta-copy p{font-size:16px;color:var(--c-text-2);margin-bottom:26px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.qr-box{flex:0 0 120px;width:120px;height:120px;background:#fff;border:1px solid var(--c-line);border-radius:12px;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-1)}
.qr-box svg{width:64px;height:64px;color:var(--c-text-3)}
@media(max-width:1023px){
  .cta-band{padding:72px 0}
  .cta-copy h2{font-size:24px}
}
@media(max-width:767px){
  .cta-band{padding:56px 0}
  .cta-copy h2{font-size:22px}
  .cta-actions .btn{width:100%}
  .qr-box{width:96px;height:96px;flex:0 0 96px}
}

/* 页脚 */
.site-footer{background:var(--c-bg-soft);border-top:1px solid var(--c-line);padding-top:64px}
.footer-grid{padding-bottom:44px}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--c-text)}
.footer-col p{font-size:14px;color:var(--c-text-2);line-height:1.8}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:32px;height:32px}
.footer-brand .brand-text{font-size:17px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--c-text-2);transition:color .18s,transform .18s var(--ease);display:inline-block}
.footer-links a:hover{color:var(--c-primary);transform:translateX(-2px)}
.footer-contact{margin-top:16px;display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:var(--c-text-3)}
.footer-sub{display:flex;flex-direction:column;gap:12px}
.footer-sub input{height:46px;border:1px solid var(--c-line);border-radius:10px;padding:0 14px;background:#fff;font-size:14px;transition:border-color .18s,box-shadow .18s}
.footer-sub input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(27,107,176,.14)}
.footer-sub .btn{width:100%;padding:13px 18px}
.footer-qr{display:flex;align-items:center;gap:12px;margin-top:6px}
.footer-qr-box{width:72px;height:72px;background:#fff;border:1px solid var(--c-line);border-radius:10px;display:flex;align-items:center;justify-content:center}
.footer-qr-box svg{width:40px;height:40px;color:var(--c-text-3)}
.footer-qr span{font-size:13px;color:var(--c-text-3);line-height:1.6}
.footer-bottom{border-top:1px solid var(--c-line);padding:22px 0 28px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}
.footer-bottom p{font-size:13px;color:var(--c-text-3)}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom .links a{font-size:13px;color:var(--c-text-3);transition:color .18s}
.footer-bottom .links a:hover{color:var(--c-primary)}
@media(max-width:767px){
  .site-footer{padding-top:48px}
  .footer-col{margin-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --c-primary:#1B6BB0;--c-primary-600:#155A96;--c-primary-700:#10497B;--c-primary-200:#9CC3E4;--c-primary-50:#E7F0F8;
  --c-accent:#0E9E8E;--c-accent-50:#E5F5F3;--c-highlight:#E1873A;
  --c-bg:#FFFFFF;--c-bg-soft:#F5F8FC;--c-line:#E3EAF3;
  --c-text:#0F2033;--c-text-2:#4A5A6E;--c-text-3:#8595A8;
  --c-success:#2E9E6B;--c-warn:#C98A22;
  --r-card:14px;--r-img:12px;--r-btn:10px;
  --sd-card:0 1px 2px rgba(16,54,86,.05),0 12px 24px -14px rgba(16,54,86,.18);
  --sd-hover:0 2px 4px rgba(16,54,86,.07),0 20px 36px -16px rgba(16,54,86,.26);
  --sp-sec:96px;
}
*,*::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:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-style:none}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-600)}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:var(--r-btn);
  font-weight:600;font-size:15px;line-height:1.2;border:1px solid transparent;transition:all .18s cubic-bezier(.2,.7,.3,1);white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sd-hover)}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-700)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-600)}
.btn-highlight{background:var(--c-highlight);color:#fff;border-radius:999px;padding:10px 22px;font-size:14px}
.btn-highlight:hover{background:#CF7729;color:#fff;transform:translateY(-1px)}
.btn-text{color:var(--c-primary);font-weight:600;font-size:15px;padding:6px 2px}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px}
.btn[disabled],.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em;
  background:var(--c-primary-50);color:var(--c-primary-700)}
.badge-accent{background:var(--c-accent-50);color:#0B7A6E}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.1);transition:box-shadow .2s ease,border-color .2s ease;border-bottom:1px solid transparent}
.site-header.is-scrolled{border-bottom:1px solid var(--c-line);box-shadow:0 1px 0 var(--c-line),0 8px 20px -18px rgba(16,54,86,.4)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:9px;background:var(--c-primary-50);color:var(--c-primary)}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-key{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.16em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{position:relative;display:inline-block;padding:9px 14px;border-radius:999px;font-size:15px;color:var(--c-text-2);font-weight:500}
.nav-link:hover{background:var(--c-bg-soft);color:var(--c-primary)}
.nav-link.active{color:var(--c-primary)}
.nav-link.active::after{content:"";position:absolute;left:20%;right:20%;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary)}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-search{display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 14px;border:1px solid var(--c-line);border-radius:999px;background:var(--c-bg-soft);transition:all .2s ease}
.nav-search:focus-within{background:#fff;border-color:var(--c-primary);width:250px;box-shadow:0 0 0 3px var(--c-primary-50)}
.nav-search svg{width:16px;height:16px;color:var(--c-text-3);flex-shrink:0}
.nav-search input{width:100%;border:none;background:transparent;outline:none;font-size:14px}
.nav-search input::placeholder{color:var(--c-text-3)}
.nav-login{font-size:14px;font-weight:500;color:var(--c-text-2);padding:8px 4px}
.nav-login:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:10px;color:var(--c-text);margin-left:auto}
.nav-toggle:hover{background:var(--c-bg-soft)}
.nav-toggle svg{width:22px;height:22px}
.mobile-drawer{display:none;border-top:1px solid var(--c-line);background:#fff;padding:16px 0 22px}
.mobile-drawer.is-open{display:block}
.mobile-drawer .container{display:flex;flex-direction:column;gap:6px}
.mobile-drawer .nav-link{padding:12px 14px;border-radius:10px;font-size:16px}
.mobile-drawer .drawer-actions{display:flex;gap:12px;margin-top:10px;flex-wrap:wrap}

/* ---------- 面包屑 ---------- */
.page-head{background:linear-gradient(180deg,var(--c-bg-soft) 0%,#fff 100%);border-bottom:1px solid var(--c-line);padding:34px 0 30px}
.breadcrumb{font-size:13px;color:var(--c-text-3)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;padding:0;margin:0}
.breadcrumb li{display:flex;align-items:center;gap:8px;max-width:52vw}
.breadcrumb li+li::before{content:"›";color:var(--c-text-3)}
.breadcrumb a{color:var(--c-text-3)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .current{color:var(--c-text-3);opacity:.85;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- 文章布局 ---------- */
.article-wrap{padding:56px 0 0}
.article-layout .grid-x{margin-left:-12px;margin-right:-12px}
.article-layout .cell{padding-left:12px;padding-right:12px}
.article-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sd-card);padding:38px 40px 44px}
.article-head{border-bottom:1px solid var(--c-line);padding-bottom:24px;margin-bottom:28px}
.article-head h1{font-size:36px;line-height:1.32;font-weight:700;color:var(--c-text);margin:14px 0 16px;letter-spacing:-.01em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--c-text-3)}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-text-3);opacity:.7}

/* ---------- 正文排版 ---------- */
.article-body{max-width:800px;font-size:17px;line-height:1.95;color:var(--c-text)}
.article-body p{margin:0 0 20px}
.article-body h2{font-size:28px;line-height:1.4;font-weight:700;margin:44px 0 18px;scroll-margin-top:100px}
.article-body h3{font-size:22px;line-height:1.5;font-weight:600;margin:32px 0 14px;scroll-margin-top:100px}
.article-body h4{font-size:18px;font-weight:600;margin:24px 0 12px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px}
.article-body ul{list-style:none}
.article-body ul li{position:relative;padding-left:2px;margin-bottom:8px}
.article-body ul li::before{content:"";position:absolute;left:-18px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--c-primary)}
.article-body ol{list-style:decimal}
.article-body ol li{margin-bottom:8px}
.article-body ol li::marker{color:var(--c-primary);font-weight:600}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-primary-700)}
.article-body blockquote{margin:0 0 22px;padding:16px 22px;border-left:3px solid var(--c-primary);background:var(--c-primary-50);border-radius:0 10px 10px 0;color:var(--c-text-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:6px 0 22px;width:100%}
.article-body figure{margin:0 0 22px}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-text-3);margin-top:-12px;margin-bottom:20px}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.article-body th{background:var(--c-bg-soft);font-weight:600}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:32px 0}
.article-body code{background:var(--c-bg-soft);border:1px solid var(--c-line);border-radius:6px;padding:2px 6px;font-size:14px}

/* ---------- 空态 ---------- */
.empty-state{min-height:220px;background:var(--c-bg-soft);border-radius:var(--r-card);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:36px 24px}
.empty-state svg{width:44px;height:44px;color:var(--c-primary-200)}
.empty-state p{font-size:15px;color:var(--c-text-2);margin:0}

/* ---------- 侧栏 ---------- */
.article-aside{display:flex;flex-direction:column;gap:20px}
.aside-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sd-card);padding:22px 24px}
.aside-card h3{font-size:15px;font-weight:600;color:var(--c-text);margin:0 0 14px;display:flex;align-items:center;gap:8px}
.aside-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--c-primary)}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{display:block;font-size:14px;color:var(--c-text-2);padding:7px 10px;border-radius:8px;line-height:1.5}
.toc-list a:hover{background:var(--c-primary-50);color:var(--c-primary)}
.aside-links{display:flex;flex-direction:column;gap:2px}
.aside-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;color:var(--c-text-2);padding:10px 12px;border-radius:10px;border:1px solid transparent}
.aside-links a:hover{background:var(--c-bg-soft);border-color:var(--c-line);color:var(--c-primary)}
.aside-links span.arrow{color:var(--c-text-3);font-size:13px}
.aside-note{font-size:13px;color:var(--c-text-3);line-height:1.75}

/* ---------- 文末继续浏览 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.post-nav-card{display:flex;flex-direction:column;gap:6px;padding:20px 22px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sd-card);transition:all .18s cubic-bezier(.2,.7,.3,1)}
.post-nav-card:hover{transform:translateY(-3px);border-color:rgba(27,107,176,.3);box-shadow:var(--sd-hover)}
.pn-label{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--c-primary)}
.pn-title{font-size:16px;font-weight:600;color:var(--c-text);line-height:1.5}
.post-nav-card:hover .pn-title{color:var(--c-primary)}
.pn-desc{font-size:13px;color:var(--c-text-3)}
.post-back{margin-top:22px}

/* ---------- 相关推荐 ---------- */
.related-section{padding:72px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;border-bottom:1px solid var(--c-line);padding-bottom:14px}
.section-head h2{font-size:26px;font-weight:700;line-height:1.35}
.section-head p{font-size:14px;color:var(--c-text-3);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rcard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sd-card);overflow:hidden;transition:all .18s cubic-bezier(.2,.7,.3,1)}
.rcard:hover{transform:translateY(-3px);border-color:rgba(27,107,176,.3);box-shadow:var(--sd-hover)}
.rcard-media{position:relative;aspect-ratio:16/10;background:var(--c-primary-50);overflow:hidden}
.rcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.rcard:hover .rcard-media img{transform:scale(1.04)}
.rcard-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rcard-body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--c-text)}
.rcard:hover .rcard-body h3{color:var(--c-primary)}
.rcard-body p{font-size:14px;line-height:1.7;color:var(--c-text-2);margin:0}
.rcard-meta{margin-top:auto;font-size:13px;color:var(--c-text-3);display:flex;align-items:center;gap:8px}

/* ---------- CTA ---------- */
.cta-band{margin-top:96px;position:relative;background-color:var(--c-bg-soft);background-image:url(/assets/images/backpic/back-3.webp);background-size:cover;background-position:center;border-radius:18px;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:rgba(245,248,252,.92)}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;padding:52px 48px}
.cta-inner h2{font-size:28px;font-weight:700;line-height:1.35;margin-bottom:10px}
.cta-inner p{font-size:15px;color:var(--c-text-2);max-width:560px}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:20px}
.cta-form{display:flex;gap:12px;margin-top:20px;max-width:460px}
.cta-form input{flex:1;height:48px;border:1px solid var(--c-line);border-radius:var(--r-btn);padding:0 16px;background:#fff;font-size:14px;transition:all .18s ease}
.cta-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-50)}
.form-tip{font-size:13px;color:var(--c-text-3);margin-top:10px}
.qr-box{width:120px;height:120px;background:#fff;border:1px solid var(--c-line);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--c-primary);flex-shrink:0}
.qr-box svg{width:56px;height:56px}
.cta-side{display:flex;flex-direction:column;align-items:center;gap:10px}
.cta-side span{font-size:13px;color:var(--c-text-3)}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:96px;background:var(--c-bg-soft);border-top:1px solid var(--c-line);padding:64px 0 0}
.footer-grid{gap:32px}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--c-text)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-col p{font-size:14px;color:var(--c-text-2);line-height:1.8}
.footer-contact{margin-top:16px;display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--c-text-3)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--c-text-2)}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);display:inline-block}
.footer-sub{display:flex;flex-direction:column;gap:10px}
.footer-sub input{height:46px;border:1px solid var(--c-line);border-radius:var(--r-btn);padding:0 14px;background:#fff;font-size:14px}
.footer-sub input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-50)}
.footer-sub .btn{padding:12px 20px}
.footer-qr{display:flex;align-items:center;gap:12px;margin-top:16px}
.footer-qr-box{width:74px;height:74px;background:#fff;border:1px solid var(--c-line);border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--c-primary)}
.footer-qr-box svg{width:34px;height:34px}
.footer-qr span{font-size:12px;color:var(--c-text-3);line-height:1.6}
.footer-bottom{margin-top:56px;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)}
.footer-bottom a{color:var(--c-text-3)}
.footer-bottom a:hover{color:var(--c-primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .header-inner{gap:16px}
  .main-nav{margin-left:0}
  .nav-search{width:180px}
  .nav-search:focus-within{width:200px}
}
@media (max-width:1023px){
  :root{--sp-sec:72px}
  .main-nav{display:none}
  .header-actions .nav-search,.header-actions .nav-login{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px}
  .article-aside{position:static;order:2;margin-top:28px}
  .article-card{padding:30px 26px 34px}
  .article-head h1{font-size:30px}
  .article-body{font-size:16.5px;line-height:1.9}
  .article-body h2{font-size:24px}
  .article-body h3{font-size:19px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:40px 32px}
}
@media (max-width:767px){
  :root{--sp-sec:56px}
  .container{padding:0 16px}
  .article-wrap{padding:32px 0 0}
  .article-card{padding:24px 18px 28px}
  .article-head h1{font-size:26px;margin:12px 0 14px}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:22px;margin:34px 0 14px}
  .article-body h3{font-size:18px}
  .post-nav{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-band{margin-top:56px}
  .cta-inner{padding:32px 22px}
  .cta-inner h2{font-size:22px}
  .cta-form{flex-direction:column;max-width:100%}
  .cta-form .btn{width:100%}
  .site-footer{margin-top:56px;padding-top:44px}
  .footer-bottom{margin-top:36px;flex-direction:column;align-items:flex-start;gap:10px}
  .breadcrumb li{max-width:80vw}
}

/* roulang page: category1 */
/* ===================== 设计变量 ===================== */
:root{
  --c-primary:#1B6BB0;
  --c-primary-600:#155A96;
  --c-primary-700:#10497B;
  --c-primary-200:#9CC3E4;
  --c-primary-50:#E7F0F8;
  --c-accent:#0E9E8E;
  --c-accent-50:#E5F5F3;
  --c-highlight:#E1873A;
  --c-bg:#FFFFFF;
  --c-bg-soft:#F5F8FC;
  --c-line:#E3EAF3;
  --c-text:#0F2033;
  --c-text-2:#4A5A6E;
  --c-text-3:#8595A8;
  --c-success:#2E9E6B;
  --c-warn:#C98A22;

  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;

  --shadow-card:0 1px 2px rgba(16,54,86,.05),0 12px 24px -14px rgba(16,54,86,.18);
  --shadow-card-hover:0 2px 4px rgba(16,54,86,.07),0 20px 36px -16px rgba(16,54,86,.26);

  --container:1200px;
  --section-y:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{background:none;border:0;padding:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--radius-btn);
  padding:13px 28px;font-size:15px;font-weight:600;line-height:1.4;
  cursor:pointer;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn svg{width:16px;height:16px;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-600);transform:translateY(-1px);box-shadow:var(--shadow-card);}
.btn-primary:active{background:var(--c-primary-700);transform:translateY(0);}
.btn-secondary{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-secondary:hover{background:var(--c-primary-50);transform:translateY(-1px);}
.btn-secondary:active{transform:translateY(0);}
.btn-highlight{background:var(--c-highlight);color:#fff;border-radius:var(--radius-pill);padding:9px 20px;font-size:14px;}
.btn-highlight:hover{background:#CE7630;transform:translateY(-1px);box-shadow:var(--shadow-card);}
.btn-text{color:var(--c-primary);font-weight:600;font-size:14px;padding:8px 6px;}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px;}
.btn:disabled,.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ===================== 顶部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 20px -18px rgba(16,54,86,.45);}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--c-primary-50);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-key{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--c-text);}
.brand-sub{font-size:11px;letter-spacing:.16em;color:var(--c-text-3);}

.main-nav{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 14px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:500;color:var(--c-text-2);
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.nav-link:hover{background:var(--c-primary-50);color:var(--c-primary-700);}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:20%;right:20%;bottom:1px;height:2px;
  border-radius:2px;background:var(--c-primary);
}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.header-search{
  display:flex;align-items:center;gap:6px;
  width:220px;height:40px;padding:0 10px;
  border:1px solid var(--c-line);border-radius:var(--radius-btn);
  background:var(--c-bg-soft);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),width .18s var(--ease);
}
.header-search:focus-within{
  width:240px;background:#fff;border-color:var(--c-primary);
  box-shadow:0 0 0 3px var(--c-primary-50);
}
.header-search svg{width:16px;height:16px;color:var(--c-text-3);flex:0 0 auto;}
.header-search input{
  border:0;background:transparent;outline:none;width:100%;height:100%;
  font-size:14px;color:var(--c-text);
}
.header-search input::placeholder{color:var(--c-text-3);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;color:var(--c-text);
  border:1px solid var(--c-line);
}
.nav-toggle:hover{background:var(--c-bg-soft);}
.nav-toggle svg{width:20px;height:20px;}

/* 移动端抽屉 */
.drawer{
  position:fixed;top:0;right:0;z-index:120;
  width:min(320px,84vw);height:100%;
  background:#fff;border-left:1px solid var(--c-line);
  padding:20px;overflow-y:auto;
  transform:translateX(102%);
  transition:transform .26s var(--ease);
  box-shadow:-16px 0 40px -24px rgba(16,54,86,.4);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head span{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-text-3);}
.drawer-close{width:36px;height:36px;border-radius:10px;font-size:20px;line-height:1;color:var(--c-text-2);}
.drawer-close:hover{background:var(--c-bg-soft);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.drawer-nav a{padding:11px 14px;border-radius:10px;font-size:15px;color:var(--c-text-2);}
.drawer-nav a:hover{background:var(--c-bg-soft);color:var(--c-primary-700);}
.drawer-nav a.active{background:var(--c-primary-50);color:var(--c-primary);font-weight:600;}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;padding:0 12px;border:1px solid var(--c-line);border-radius:var(--radius-btn);background:var(--c-bg-soft);margin-bottom:18px;}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;}
.drawer-actions{display:flex;flex-direction:column;gap:10px;}
.drawer-actions .btn{width:100%;}
.drawer-mask{
  position:fixed;inset:0;z-index:110;background:rgba(15,32,51,.38);
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}

/* ===================== 首屏 Banner ===================== */
.page-hero{
  position:relative;overflow:hidden;
  background-color:var(--c-bg-soft);
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;
  padding:88px 0 64px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.90) 48%,rgba(245,248,252,.80) 100%);
}
.page-hero::after{
  content:"";position:absolute;top:-60px;right:-40px;width:320px;height:320px;
  border:1px solid rgba(27,107,176,.16);border-radius:50%;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}

.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:20px;}
.crumb a:hover{color:var(--c-primary);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"›";color:var(--c-text-3);}
.crumb .current{color:var(--c-text-3);}

.hero-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:var(--c-accent-50);color:var(--c-accent);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  margin-bottom:18px;
}
.hero-title{font-size:40px;line-height:1.2;font-weight:700;letter-spacing:-.01em;color:var(--c-text);}
.hero-title em{font-style:normal;color:var(--c-primary);}
.hero-lead{margin-top:18px;max-width:640px;font-size:17px;line-height:1.85;color:var(--c-text-2);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:0;margin-top:44px;}
.hero-metrics > .metric{padding-right:40px;}
.hero-metrics > .metric + .metric{padding-left:40px;border-left:1px solid var(--c-line);}
.metric-num{display:block;font-size:34px;line-height:1.15;font-weight:700;color:var(--c-primary);}
.metric-label{display:block;margin-top:4px;font-size:14px;color:var(--c-text-2);}

/* ===================== 主体布局 ===================== */
.cat-layout{padding:64px 0 var(--section-y);}
.cat-aside{padding-right:0;}
.cat-main{min-width:0;}

.anchor-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:22px 20px;box-shadow:var(--shadow-card);
}
.anchor-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-text-3);margin-bottom:12px;}
.anchor-list{display:flex;flex-direction:column;gap:2px;}
.anchor-list a{
  display:block;padding:9px 12px;border-radius:8px;
  border-left:2px solid transparent;
  font-size:14px;color:var(--c-text-2);
  transition:background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.anchor-list a:hover{background:var(--c-primary-50);color:var(--c-primary-700);}
.anchor-list a.is-current{background:var(--c-primary-50);color:var(--c-primary);border-left-color:var(--c-primary);font-weight:600;}
.anchor-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3);line-height:1.7;}

/* 长文分段 */
.cat-section{margin-bottom:64px;scroll-margin-top:100px;}
.cat-section:last-child{margin-bottom:0;}
.section-kicker{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--c-accent);background:var(--c-accent-50);
  padding:4px 10px;border-radius:6px;margin-bottom:14px;
}
.section-title{font-size:30px;line-height:1.3;font-weight:700;color:var(--c-text);}
.section-body{margin-top:18px;}
.section-body p{font-size:16px;line-height:1.9;color:var(--c-text);margin-bottom:18px;}
.section-body p:last-child{margin-bottom:0;}
.media-wide{
  margin:24px 0 28px;aspect-ratio:21/9;overflow:hidden;
  border-radius:var(--radius-img);border:1px solid var(--c-line);
  background:var(--c-bg-soft);
}
.media-wide img{width:100%;height:100%;object-fit:cover;}
.media-caption{margin-top:-14px;margin-bottom:26px;font-size:13px;color:var(--c-text-3);text-align:center;}

.point-grid{margin-top:8px;}
.point-card{
  height:100%;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:22px 22px 20px;box-shadow:var(--shadow-card);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.point-card:hover{transform:translateY(-3px);border-color:rgba(27,107,176,.3);box-shadow:var(--shadow-card-hover);}
.point-icon{
  width:38px;height:38px;border-radius:10px;margin-bottom:14px;
  background:var(--c-primary-50);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
}
.point-icon svg{width:20px;height:20px;}
.point-card h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--c-text);margin-bottom:8px;}
.point-card p{font-size:14px;line-height:1.75;color:var(--c-text-2);}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 4px;}
.tag{
  display:inline-flex;align-items:center;
  padding:7px 16px;border-radius:var(--radius-pill);
  background:var(--c-primary-50);color:var(--c-primary-700);
  font-size:13px;font-weight:600;
}

.dot-list{margin-top:6px;display:flex;flex-direction:column;gap:12px;}
.dot-list li{position:relative;padding-left:22px;font-size:15px;line-height:1.8;color:var(--c-text-2);}
.dot-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;background:var(--c-primary);
}
.dot-list strong{color:var(--c-text);font-weight:600;}

/* ===================== FAQ ===================== */
.faq-block{margin-top:28px;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  overflow:hidden;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.faq-item:hover{border-color:rgba(27,107,176,.3);}
.faq-item.open{border-color:rgba(27,107,176,.28);box-shadow:var(--shadow-card);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-text);
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--c-line);position:relative;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-text-2);
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:1.5px;}
.faq-icon::after{width:1.5px;height:10px;transition:opacity .18s var(--ease);}
.faq-item.open .faq-icon{background:var(--c-primary);border-color:var(--c-primary);}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:#fff;}
.faq-item.open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2);}

/* ===================== 相关分类 ===================== */
.related-block{
  margin-top:56px;padding:28px 28px 30px;
  background:var(--c-bg-soft);border:1px solid var(--c-line);border-radius:var(--radius-card);
}
.related-block h2{font-size:20px;font-weight:600;color:var(--c-text);}
.related-block p{margin-top:8px;font-size:14px;color:var(--c-text-2);}
.chip-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--c-line);
  font-size:14px;font-weight:600;color:var(--c-text-2);
  transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.chip svg{width:14px;height:14px;color:var(--c-primary);}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--shadow-card);}

/* ===================== CTA 带 ===================== */
.cta-band{
  position:relative;overflow:hidden;
  padding:76px 0;
  background-color:var(--c-primary-50);
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.88) 55%,rgba(231,240,248,.78) 100%);
}
.cta-band .container{position:relative;z-index:2;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;gap:32px;justify-content:space-between;}
.cta-copy{max-width:620px;}
.cta-copy h2{font-size:30px;line-height:1.3;font-weight:700;color:var(--c-text);}
.cta-copy p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--c-text-2);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-side{display:flex;align-items:center;gap:16px;}
.qr-box{
  width:120px;height:120px;border-radius:var(--radius-img);
  background:#fff;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);
}
.qr-box svg{width:56px;height:56px;}
.qr-text{font-size:13px;line-height:1.7;color:var(--c-text-2);}

/* ===================== 页脚 ===================== */
.site-footer{margin-top:0;background:var(--c-bg-soft);border-top:1px solid var(--c-line);padding:64px 0 0;}
.footer-grid{row-gap:36px;}
.footer-col{padding-right:24px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-col > p{font-size:14px;line-height:1.8;color:var(--c-text-2);max-width:320px;}
.footer-contact{margin-top:16px;display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--c-text-3);}
.footer-col h3{font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--c-text-2);transition:color .16s var(--ease),transform .16s var(--ease);}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-sub{display:flex;flex-direction:column;gap:10px;max-width:280px;}
.footer-sub input{
  height:46px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--radius-btn);
  background:#fff;font-size:14px;outline:none;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.footer-sub input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-50);}
.footer-sub input.error{border-color:var(--c-warn);}
.footer-sub input.ok{border-color:var(--c-success);}
.footer-sub .btn{width:100%;}
.sub-tip{font-size:13px;line-height:1.7;color:var(--c-text-3);}
.footer-qr{display:flex;align-items:center;gap:12px;margin-top:18px;}
.footer-qr-box{
  width:78px;height:78px;border-radius:10px;background:#fff;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);
}
.footer-qr-box svg{width:36px;height:36px;}
.footer-qr span{font-size:13px;line-height:1.7;color:var(--c-text-2);}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);
}

/* ===================== 响应式 ===================== */
@media (max-width:1279px){
  :root{--section-y:80px;}
  .header-search{width:190px;}
  .header-search:focus-within{width:210px;}
}
@media (max-width:1023px){
  .main-nav,.header-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:60px;gap:12px;}
  .page-hero{padding:64px 0 52px;}
  .hero-title{font-size:32px;}
  .cat-layout{padding:48px 0 var(--section-y);}
  .cat-aside{padding-right:0;}
  .anchor-card{position:static;}
  .anchor-list{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .anchor-list a{border-left:0;border:1px solid var(--c-line);border-radius:var(--radius-pill);padding:8px 14px;font-size:13px;}
  .anchor-list a.is-current{border-color:var(--c-primary);}
  .section-title,.cta-copy h2{font-size:24px;}
  .footer-col{padding-right:0;}
}
@media (max-width:767px){
  :root{--section-y:64px;}
  .container{padding:0 20px;}
  .brand-sub{display:none;}
  .hero-metrics{margin-top:32px;flex-direction:column;gap:18px;}
  .hero-metrics > .metric{padding-right:0;}
  .hero-metrics > .metric + .metric{padding-left:0;border-left:0;padding-top:16px;border-top:1px solid var(--c-line);}
  .hero-title{font-size:28px;}
  .hero-lead{font-size:16px;}
  .media-wide{aspect-ratio:16/9;}
  .cta-band{padding:56px 0;}
  .cta-side{width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .brand-key{font-size:15px;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .hero-actions,.cta-actions{flex-direction:column;align-items:stretch;}
  .section-title{font-size:22px;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a p{padding:0 18px 20px;}
  .related-block{padding:22px 18px 24px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1B6BB0;
  --c-primary-600:#155A96;
  --c-primary-700:#10497B;
  --c-primary-200:#9CC3E4;
  --c-primary-50:#E7F0F8;
  --c-accent:#0E9E8E;
  --c-accent-50:#E5F5F3;
  --c-highlight:#E1873A;
  --c-bg:#FFFFFF;
  --c-bg-soft:#F5F8FC;
  --c-line:#E3EAF3;
  --c-text:#0F2033;
  --c-text-2:#4A5A6E;
  --c-text-3:#8595A8;
  --c-success:#2E9E6B;
  --c-warn:#C98A22;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-card:0 1px 2px rgba(16,54,86,.05), 0 12px 24px -14px rgba(16,54,86,.18);
  --sh-card-hover:0 2px 4px rgba(16,54,86,.07), 0 20px 36px -16px rgba(16,54,86,.26);
  --sh-float:0 18px 40px -20px rgba(16,54,86,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-soft{background:var(--c-bg-soft)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700}
.section-head p{margin-top:10px;font-size:15px;color:var(--c-text-2);max-width:640px}
.link-more{font-size:15px;font-weight:600;color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;white-space:nowrap}
.link-more:hover{color:var(--c-primary-700)}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.04em;padding:5px 12px;border-radius:999px;background:var(--c-primary-50);color:var(--c-primary-700)}
.tag-accent{background:var(--c-accent-50);color:#0B7A6D}
.badge{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.04em;padding:4px 10px;border-radius:999px;background:var(--c-primary-50);color:var(--c-primary-700)}
.badge-accent{background:var(--c-accent-50);color:#0B7A6D}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;padding:13px 28px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;transition:all .18s var(--ease);min-height:44px;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(27,107,176,.9)}
.btn-primary:hover{background:var(--c-primary-600);transform:translateY(-1px);box-shadow:0 16px 28px -16px rgba(27,107,176,.95)}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-700)}
.btn-secondary{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-secondary:hover{background:var(--c-primary-50)}
.btn-secondary:active{background:var(--c-primary-50);transform:translateY(0)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none}
.btn-text{background:none;border:0;padding:8px 4px;color:var(--c-primary);font-size:15px;font-weight:600;cursor:pointer;min-height:44px}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px}
.btn-highlight{background:var(--c-highlight);color:#fff;border-radius:999px;padding:10px 20px;font-size:14px;min-height:40px}
.btn-highlight:hover{background:#CE7730;transform:translateY(-1px)}
.btn-highlight:active{transform:translateY(0);background:#B96A26}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid transparent;transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:0 8px 20px -18px rgba(16,54,86,.45)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--c-primary-50);color:var(--c-primary);
  display:grid;place-items:center;flex-shrink:0;transition:background .18s var(--ease)
}
.brand-mark svg{width:22px;height:22px}
.brand:hover .brand-mark{background:#D9E8F5}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-key{font-size:17px;font-weight:700;letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.08em}
.main-nav{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-link{position:relative;padding:9px 14px;border-radius:999px;font-size:15px;color:var(--c-text-2);transition:all .18s var(--ease);white-space:nowrap}
.nav-link:hover{background:var(--c-primary-50);color:var(--c-primary)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:2px;
  width:60%;height:2px;border-radius:2px;background:var(--c-primary)
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search{
  display:flex;align-items:center;gap:8px;width:220px;padding:7px 14px;border-radius:999px;
  background:var(--c-bg-soft);border:1px solid var(--c-line);transition:all .2s var(--ease)
}
.nav-search:focus-within{background:#fff;border-color:var(--c-primary);width:240px;box-shadow:0 0 0 3px var(--c-primary-50)}
.nav-search svg{width:16px;height:16px;color:var(--c-text-3);flex-shrink:0}
.nav-search input{border:0;background:transparent;outline:none;font-size:14px;width:100%;color:var(--c-text);font-family:inherit}
.nav-search input::placeholder{color:var(--c-text-3)}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  color:var(--c-text);cursor:pointer;align-items:center;justify-content:center
}
.menu-toggle svg{width:20px;height:20px}
.drawer-mask{position:fixed;inset:0;background:rgba(15,32,51,.44);opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,340px);background:#fff;z-index:80;
  transform:translateX(105%);transition:transform .28s var(--ease);
  padding:24px 20px 40px;overflow-y:auto;box-shadow:-20px 0 40px -24px rgba(16,54,86,.4)
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-title{font-size:13px;color:var(--c-text-3);letter-spacing:.06em;margin:18px 0 8px}
.drawer-link{display:block;padding:12px 14px;border-radius:10px;font-size:15px;color:var(--c-text-2)}
.drawer-link:hover,.drawer-link.active{background:var(--c-primary-50);color:var(--c-primary);font-weight:600}
.drawer-search{display:flex;align-items:center;gap:8px;border:1px solid var(--c-line);border-radius:10px;padding:10px 12px;margin-top:6px}
.drawer-search input{border:0;outline:none;font-size:14px;width:100%;font-family:inherit}
.drawer-cta{margin-top:18px;width:100%}

/* ---------- hero ---------- */
.page-hero{padding:56px 0 72px;background:linear-gradient(180deg,var(--c-bg-soft) 0%,#fff 88%);position:relative;overflow:hidden}
.page-hero::after{
  content:"";position:absolute;right:-80px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,var(--c-primary-50) 0%,rgba(231,240,248,0) 70%)
}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;position:relative;z-index:1}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px;flex-wrap:wrap}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:#C5D2E0}
.crumb .current{color:#A6B4C4}
.hero-title{font-size:40px;line-height:1.2;font-weight:700;margin:14px 0 18px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--c-text-2);max-width:580px}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.trust-line{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px;font-size:13px;color:var(--c-text-3)}
.trust-line span{display:flex;align-items:center;gap:14px}
.trust-line span+span::before{content:"";width:1px;height:12px;background:var(--c-line);display:inline-block}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:16px;box-shadow:var(--sh-card)}
.float-card{
  position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--c-line);
  border-radius:14px;padding:16px 20px;box-shadow:var(--sh-float);min-width:190px
}
.float-card strong{display:block;font-size:24px;font-weight:700;color:var(--c-primary);line-height:1.2}
.float-card span{font-size:13px;color:var(--c-text-2)}
.float-card .float-row+.float-row{margin-top:12px;padding-top:12px;border-top:1px solid var(--c-line)}

/* ---------- stat strip ---------- */
.stat-strip{padding:0 0 8px}
.stat-strip-inner{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--c-line);
  border:1px solid var(--c-line);border-radius:14px;overflow:hidden;margin-top:-40px;position:relative;z-index:2
}
.stat-item{background:#fff;padding:26px 28px}
.stat-item strong{display:block;font-size:32px;font-weight:700;color:var(--c-primary);line-height:1.15}
.stat-item span{font-size:14px;color:var(--c-text-2)}

/* ---------- media rows ---------- */
.media-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;padding:40px 0}
.media-row+.media-row{border-top:1px solid var(--c-line)}
.media-row.is-reverse .media-figure{order:2}
.media-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px;box-shadow:var(--sh-card)}
.media-body h3{font-size:24px;line-height:1.4;font-weight:700;margin:14px 0 14px}
.media-body p{font-size:16px;color:var(--c-text-2);margin-bottom:14px}
.media-body p:last-of-type{margin-bottom:0}
.point-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.point-list li{display:flex;gap:10px;font-size:15px;color:var(--c-text-2);align-items:flex-start}
.point-list li::before{
  content:"";width:8px;height:8px;border-radius:2px;background:var(--c-primary);
  flex-shrink:0;margin-top:9px
}

/* ---------- checklist panel ---------- */
.check-panel{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.check-panel h2{font-size:30px;line-height:1.3;font-weight:700;margin:14px 0 16px}
.check-panel .panel-lead{font-size:16px;color:var(--c-text-2)}
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.check-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;
  transition:all .18s var(--ease)
}
.check-card:hover{transform:translateY(-3px);border-color:rgba(27,107,176,.3);box-shadow:var(--sh-card-hover)}
.check-card h4{font-size:16px;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.check-card h4::before{
  content:"";width:18px;height:18px;border-radius:6px;background:var(--c-accent-50);
  border:1px solid rgba(14,158,142,.3);flex-shrink:0
}
.check-card p{font-size:14px;color:var(--c-text-2);line-height:1.75}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:border-color .18s var(--ease)}
.faq-item.is-open{border-color:rgba(27,107,176,.35)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;padding:22px 24px;font-size:17px;font-weight:600;color:var(--c-text);
  text-align:left;cursor:pointer;font-family:inherit;line-height:1.5
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{
  position:relative;width:20px;height:20px;flex-shrink:0;color:var(--c-primary);transition:transform .22s var(--ease)
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;transition:opacity .22s var(--ease)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2)}

/* ---------- related chips ---------- */
.related-band{padding:0 0 96px}
.related-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:#fff;border:1px solid var(--c-line);border-radius:16px;padding:28px 32px;box-shadow:var(--sh-card)
}
.related-inner h3{font-size:18px;font-weight:600;margin-bottom:6px}
.related-inner p{font-size:14px;color:var(--c-text-2)}
.chip-group{display:flex;gap:12px;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-primary-700);
  background:var(--c-primary-50);border:1px solid rgba(27,107,176,.16);border-radius:999px;padding:10px 18px;
  transition:all .18s var(--ease)
}
.chip:hover{background:#D9E8F5;transform:translateY(-2px)}
.chip-accent{background:var(--c-accent-50);color:#0B7A6D;border-color:rgba(14,158,142,.18)}

/* ---------- cta ---------- */
.cta-band{
  position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--c-line);
  padding:56px 52px;display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center;
  background-image:linear-gradient(rgba(245,248,252,.94),rgba(245,248,252,.94)),url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center
}
.cta-band h2{font-size:30px;line-height:1.3;font-weight:700;margin-bottom:12px}
.cta-band p{font-size:16px;color:var(--c-text-2);max-width:560px}
.cta-actions{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap}
.qr-box{
  width:120px;height:120px;background:#fff;border:1px solid var(--c-line);border-radius:12px;
  display:grid;place-items:center;color:var(--c-primary);flex-shrink:0
}
.qr-box svg{width:52px;height:52px}
.qr-note{text-align:center;font-size:14px;color:var(--c-text-2);margin-top:10px}

/* ---------- footer ---------- */
.site-footer{background:var(--c-bg-soft);border-top:1px solid var(--c-line);padding:72px 0 0;margin-top:0}
.footer-grid{margin-left:-16px;margin-right:-16px}
.footer-grid>.cell{padding-left:16px;padding-right:16px;margin-bottom:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:10px;background:#fff;border:1px solid var(--c-line)}
.footer-brand .brand-key{font-size:16px;font-weight:700}
.footer-col p{font-size:14px;color:var(--c-text-2);max-width:280px}
.footer-contact{display:flex;flex-direction:column;gap:6px;margin-top:16px;font-size:13px;color:var(--c-text-3)}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links a{display:block;font-size:14px;color:var(--c-text-2);padding:6px 0;transition:all .18s var(--ease)}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px)}
.footer-sub{display:flex;gap:10px;flex-wrap:wrap}
.footer-sub input{
  flex:1 1 150px;min-width:0;height:44px;border:1px solid var(--c-line);border-radius:10px;
  padding:0 14px;font-size:14px;font-family:inherit;outline:none;background:#fff;color:var(--c-text);
  transition:all .18s var(--ease)
}
.footer-sub input::placeholder{color:var(--c-text-3)}
.footer-sub input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-50)}
.footer-sub input.is-error{border-color:var(--c-warn)}
.footer-sub input.is-ok{border-color:var(--c-success)}
.footer-sub .btn{padding:13px 20px}
.form-note{font-size:13px;color:var(--c-text-3);margin-top:10px;line-height:1.7}
.form-msg{font-size:13px;margin-top:8px;color:var(--c-success);display:none}
.form-msg.is-show{display:block}
.footer-qr{display:flex;align-items:center;gap:12px;margin-top:16px;font-size:13px;color:var(--c-text-3);line-height:1.6}
.footer-qr-box{
  width:72px;height:72px;border:1px solid var(--c-line);border-radius:12px;background:#fff;
  display:grid;place-items:center;color:var(--c-primary);flex-shrink:0
}
.footer-qr-box svg{width:34px;height:34px}
.footer-bottom{
  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)
}
.footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom nav a:hover{color:var(--c-primary)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 20px}
  .nav-search{width:180px}
  .nav-search:focus-within{width:200px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .main-nav{display:none}
  .header-inner{height:64px;gap:16px}
  .nav-search{display:none}
  .menu-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .page-hero{padding:40px 0 56px}
  .hero-title{font-size:32px}
  .hero-visual img{aspect-ratio:16/9}
  .float-card{left:auto;right:16px;bottom:-18px}
  .stat-strip-inner{grid-template-columns:1fr;margin-top:-32px}
  .media-row{grid-template-columns:1fr;gap:28px;padding:32px 0}
  .media-row.is-reverse .media-figure{order:0}
  .check-panel{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:44px 32px}
  .qr-wrap{display:flex;align-items:center;gap:18px}
  .qr-note{margin-top:0;text-align:left}
  .related-band{padding-bottom:72px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-head h2,.check-panel h2,.cta-band h2{font-size:22px}
  .hero-title{font-size:28px}
  .hero-sub{font-size:16px}
  .page-hero{padding:32px 0 48px}
  .float-card{position:static;margin-top:16px;left:auto;right:auto;bottom:auto;box-shadow:var(--sh-card)}
  .stat-item{padding:22px 20px}
  .stat-item strong{font-size:26px}
  .check-grid{grid-template-columns:1fr}
  .media-body h3{font-size:19px}
  .faq-q{font-size:16px;padding:18px 18px}
  .faq-a p{padding:0 18px 18px}
  .related-inner{padding:22px 20px}
  .cta-band{padding:32px 20px}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:479px){
  .brand-key{font-size:15px}
  .hero-actions .btn{width:100%}
  .trust-line{gap:10px;font-size:12px}
}

/* roulang page: category3 */
:root{
  --c-primary:#1B6BB0;
  --c-primary-600:#155A96;
  --c-primary-700:#10497B;
  --c-primary-200:#9CC3E4;
  --c-primary-50:#E7F0F8;
  --c-accent:#0E9E8E;
  --c-accent-50:#E5F5F3;
  --c-highlight:#E1873A;
  --c-bg:#FFFFFF;
  --c-bg-soft:#F5F8FC;
  --c-line:#E3EAF3;
  --c-text:#0F2033;
  --c-text-2:#4A5A6E;
  --c-text-3:#8595A8;
  --c-success:#2E9E6B;
  --c-warn:#C98A22;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,54,86,.05), 0 12px 24px -14px rgba(16,54,86,.18);
  --sh-2:0 2px 4px rgba(16,54,86,.07), 0 20px 36px -16px rgba(16,54,86,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700;letter-spacing:.01em}
h1{font-size:40px;line-height:1.2}
h2{font-size:30px;line-height:1.3}
h3{font-size:22px;line-height:1.4;font-weight:600}
h4{font-size:18px;line-height:1.5;font-weight:600}
p{margin: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:4px}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;background:var(--c-primary);color:#fff;
  padding:10px 18px;border-radius:0 0 10px 0;font-size:14px;
}
.skip-link:focus{left:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.grid-x.gx{margin-left:-12px;margin-right:-12px}
.grid-x.gx > .cell{padding-left:12px;padding-right:12px}
.sec{padding:96px 0}
.sec-soft{background:var(--c-bg-soft)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.sec-head .eyebrow{font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--c-primary);text-transform:uppercase;margin-bottom:10px;display:block}
.sec-head p{margin-top:10px;color:var(--c-text-2);font-size:15px;max-width:660px}
.text-link{color:var(--c-primary);font-weight:600;font-size:15px;white-space:nowrap}
.text-link:hover{text-decoration:underline;text-underline-offset:4px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:13px 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;border:1px solid transparent;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-600);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-700)}
.btn-secondary{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-secondary:hover{background:var(--c-primary-50);transform:translateY(-1px)}
.btn-secondary:active{transform:translateY(0);background:var(--c-primary-200)}
.btn-highlight{background:var(--c-highlight);color:#fff;border-radius:999px;padding:10px 20px;font-size:14px;min-height:40px}
.btn-highlight:hover{background:#cf742c;transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* 徽章 / 标签 / chip */
.badge{
  display:inline-flex;align-items:center;border-radius:999px;padding:4px 12px;
  font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1;
  background:var(--c-primary-50);color:var(--c-primary-700);
}
.badge-accent{background:var(--c-accent-50);color:#0B7A6E}
.tag{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1;
  color:var(--c-primary);background:var(--c-primary-50);border-radius:999px;padding:6px 12px;
}
.chip-row{display:flex;flex-wrap:wrap;gap:12px}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:10px 18px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-text-2);font-size:14px;font-weight:600;
  transition:all .18s var(--ease);
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-50);transform:translateY(-1px)}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);
  border-bottom:1px solid transparent;backdrop-filter:saturate(180%) blur(6px);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:0 1px 0 var(--c-line)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-50);color:var(--c-primary);flex-shrink:0;
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;align-items:baseline;gap:6px;line-height:1}
.brand-key{font-size:19px;font-weight:700;color:var(--c-text);letter-spacing:.01em}
.brand-sub{font-size:12px;color:var(--c-text-3);font-weight:600;letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:4px;flex:1;min-width:0}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--c-text-2);transition:color .18s var(--ease),background-color .18s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-50)}
.nav-link.active{color:var(--c-primary)}
.nav-link.active::after{
  content:"";position:absolute;left:20%;right:20%;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search input{
  width:220px;height:42px;border:1px solid var(--c-line);border-radius:10px;background:var(--c-bg-soft);
  padding:0 16px 0 40px;font-size:14px;color:var(--c-text);transition:all .2s var(--ease);
}
.nav-search input::placeholder{color:var(--c-text-3)}
.nav-search input:focus{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 2px var(--c-primary-50);outline:none}
.nav-search svg{position:absolute;left:13px;width:17px;height:17px;color:var(--c-text-3);pointer-events:none}
.header-login{font-size:15px;font-weight:600;color:var(--c-text-2);padding:8px 4px}
.header-login:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;color:var(--c-text);
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
.nav-toggle svg{width:20px;height:20px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,32,51,.42);opacity:0;visibility:hidden;z-index:110;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:#fff;z-index:120;
  transform:translateX(100%);transition:transform .24s var(--ease);
  padding:24px 20px 32px;overflow-y:auto;box-shadow:var(--sh-2);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-head span{font-size:15px;font-weight:700}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;cursor:pointer;color:var(--c-text-2)}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-link{padding:13px 14px;border-radius:10px;font-size:15px;font-weight:600;color:var(--c-text-2)}
.drawer-link:hover{background:var(--c-primary-50);color:var(--c-primary)}
.drawer-link.active{background:var(--c-primary-50);color:var(--c-primary)}
.drawer-search{display:flex;flex-direction:column;gap:10px}
.drawer-search input{height:46px;border:1px solid var(--c-line);border-radius:10px;padding:0 14px;font-size:14px;background:var(--c-bg-soft)}
.drawer-search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px var(--c-primary-50);background:#fff}

/* 面包屑 */
.breadcrumb{margin-bottom:18px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb a{color:var(--c-text-3);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-line)}
.breadcrumb .current{color:var(--c-text-2);font-weight:600}

/* Hero */
.page-hero{
  background:linear-gradient(180deg,var(--c-bg-soft) 0%,#fff 100%);
  padding:56px 0 72px;position:relative;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle at center,var(--c-primary-50) 0%,rgba(231,240,248,0) 68%);
}
.hero-grid{position:relative;display:flex;gap:56px;align-items:center}
.hero-left{flex:1 1 58%;min-width:0}
.hero-right{flex:0 0 40%;max-width:40%}
.hero-left h1{margin:18px 0 20px}
.hero-lead{font-size:17px;color:var(--c-text-2);max-width:600px}
.hero-stats{display:flex;gap:40px;margin-top:36px;padding-top:28px;border-top:1px solid var(--c-line);flex-wrap:wrap}
.hero-stat{min-width:150px}
.hero-stat .num{font-size:36px;font-weight:700;color:var(--c-primary);line-height:1.1;letter-spacing:-.01em}
.hero-stat .num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--c-primary-600)}
.hero-stat .cap{font-size:14px;color:var(--c-text-3);margin-top:6px}
.hero-visual{
  border-radius:16px;overflow:hidden;box-shadow:var(--sh-2);position:relative;aspect-ratio:4/3;background:var(--c-primary-50);
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:-18px;bottom:22px;background:#fff;border-radius:12px;box-shadow:var(--sh-2);
  padding:14px 18px;border:1px solid var(--c-line);
}
.hero-float strong{display:block;font-size:18px;color:var(--c-text)}
.hero-float span{font-size:13px;color:var(--c-text-3)}

/* 筛选条 */
.filter-bar{border-bottom:1px solid var(--c-line);background:#fff;padding:20px 0;position:relative;z-index:2}
.filter-inner{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.filter-label{font-size:13px;font-weight:600;color:var(--c-text-3);letter-spacing:.04em;white-space:nowrap}
.filter-chips{display:flex;gap:10px;flex-wrap:wrap}
.filter-chip{
  padding:9px 16px;border-radius:999px;border:1px solid var(--c-line);background:#fff;
  font-size:14px;font-weight:600;color:var(--c-text-2);cursor:default;transition:all .18s var(--ease);
}
.filter-chip:hover{border-color:var(--c-primary-200);color:var(--c-primary)}
.filter-chip.is-active{background:var(--c-primary-50);border-color:var(--c-primary-200);color:var(--c-primary-700)}
.filter-note{margin-left:auto;font-size:13px;color:var(--c-text-3)}

/* 卡片 */
.card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(27,107,176,.3)}
.card:hover .card-title{color:var(--c-primary)}
.card-cover{position:relative;aspect-ratio:16/10;background:var(--c-primary-50);overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .card-cover img{transform:scale(1.03)}
.card-badge{
  position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--c-primary-700);
  font-size:12px;font-weight:600;letter-spacing:.04em;padding:5px 12px;border-radius:999px;line-height:1;
}
.card-body{padding:24px;display:flex;flex-direction:column;flex:1;gap:12px}
.card-title{font-size:19px;line-height:1.45;font-weight:600;color:var(--c-text);transition:color .18s var(--ease)}
.card-desc{font-size:14.5px;line-height:1.78;color:var(--c-text-2);flex:1}
.card-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);flex-wrap:wrap}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-line);display:inline-block}
.card-link{font-size:14px;font-weight:600;color:var(--c-primary);margin-top:2px}
.card-link:hover{text-decoration:underline;text-underline-offset:4px}

/* 要点条带 */
.note-band{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--c-line);border-radius:var(--r-card);background:#fff;overflow:hidden;box-shadow:var(--sh-1)}
.note-item{padding:32px 28px;border-right:1px solid var(--c-line)}
.note-item:last-child{border-right:0}
.note-item .idx{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--c-accent);display:block;margin-bottom:12px}
.note-item h3{font-size:18px;margin-bottom:10px}
.note-item p{font-size:14.5px;color:var(--c-text-2);line-height:1.8}

/* 图文段落 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);aspect-ratio:21/9;background:var(--c-primary-50)}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-body h2{margin:14px 0 16px}
.split-body p{color:var(--c-text-2);margin-bottom:14px}
.mini-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.mini-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--c-text-2)}
.mini-list li::before{
  content:"";width:8px;height:8px;border-radius:2px;background:var(--c-primary);flex-shrink:0;margin-top:9px;
}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.faq-item:hover{border-color:var(--c-primary-200)}
.faq-item[open]{border-color:rgba(27,107,176,.35);box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-size:17px;font-weight:600;color:var(--c-text);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:18px;height:18px;flex-shrink:0;color:var(--c-primary);transition:transform .18s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;transition:opacity .18s var(--ease)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2)}

/* 相关分类 */
.related-cats{padding:64px 0}
.related-cats h2{font-size:22px;margin-bottom:20px}

/* CTA 带 */
.cta-band{position:relative;overflow:hidden;border-radius:0;background:var(--c-bg-soft)}
.cta-band .cta-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;opacity:.12}
.cta-inner{position:relative;display:flex;align-items:center;gap:48px;padding:72px 0}
.cta-copy{flex:1;min-width:0}
.cta-copy h2{margin-bottom:14px}
.cta-copy p{color:var(--c-text-2);max-width:620px;margin-bottom:26px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-qr{
  width:120px;height:120px;background:#fff;border:1px solid var(--c-line);border-radius:12px;flex-shrink:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:var(--c-text-3);
  box-shadow:var(--sh-1);
}
.cta-qr svg{width:40px;height:40px;color:var(--c-primary)}
.cta-qr span{font-size:12px}

/* 页脚 */
.site-footer{background:var(--c-bg-soft);border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:0}
.footer-grid{padding-bottom:40px}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-col p{font-size:14px;color:var(--c-text-2);line-height:1.8;max-width:300px}
.footer-contact{margin-top:16px;display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--c-text-3)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--c-text-2);transition:color .18s var(--ease),transform .18s var(--ease);width:fit-content}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px)}
.footer-sub{display:flex;gap:10px;margin-bottom:18px}
.footer-sub input{
  flex:1;min-width:0;height:46px;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  padding:0 14px;font-size:14px;color:var(--c-text);transition:all .18s var(--ease);
}
.footer-sub input::placeholder{color:var(--c-text-3)}
.footer-sub input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px var(--c-primary-50)}
.footer-sub .btn{padding:0 20px;font-size:14px;min-height:46px}
.footer-sub-msg{font-size:13px;margin-bottom:14px;display:none}
.footer-sub-msg.is-ok{display:block;color:var(--c-success)}
.footer-sub-msg.is-err{display:block;color:var(--c-warn)}
.footer-qr{display:flex;align-items:center;gap:12px}
.footer-qr-box{
  width:64px;height:64px;border:1px solid var(--c-line);border-radius:12px;background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);flex-shrink:0;
}
.footer-qr-box svg{width:26px;height:26px}
.footer-qr span{font-size:13px;color:var(--c-text-3);line-height:1.6}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom .foot-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a:hover{color:var(--c-primary)}

/* 响应式 */
@media (max-width:1279px){
  .header-inner{gap:18px}
  .nav-search input{width:180px}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .sec{padding:72px 0}
  .main-nav,.nav-search,.header-login{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px;justify-content:space-between}
  h1{font-size:32px}
  h2{font-size:24px}
  .hero-grid{flex-direction:column;gap:36px;align-items:stretch}
  .hero-left,.hero-right{flex:1 1 auto;max-width:100%}
  .page-hero{padding:40px 0 56px}
  .split{grid-template-columns:1fr;gap:28px}
  .note-band{grid-template-columns:1fr}
  .note-item{border-right:0;border-bottom:1px solid var(--c-line)}
  .note-item:last-child{border-bottom:0}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px;padding:56px 0}
  .cta-qr{width:104px;height:104px}
  .related-cats{padding:48px 0}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .sec{padding:56px 0}
  h1{font-size:28px}
  h2{font-size:22px}
  h3{font-size:18px}
  body{font-size:16px;line-height:1.9}
  .hero-stats{gap:24px}
  .hero-stat{min-width:120px}
  .hero-stat .num{font-size:30px}
  .hero-float{left:12px;bottom:12px;padding:10px 14px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px}
  .filter-note{display:none}
  .filter-chips{overflow-x:auto;padding-bottom:4px;flex-wrap:nowrap;width:100%;-webkit-overflow-scrolling:touch}
  .filter-chip{flex-shrink:0}
  .footer-sub{flex-direction:column}
  .footer-bottom{flex-direction:column;gap:10px}
}
@media (max-width:479px){
  .hero-stats{flex-direction:column;gap:18px}
  .cta-actions .btn{width:100%}
}

/* roulang page: category4 */
:root{
  --c-primary:#1B6BB0;--c-primary-600:#155A96;--c-primary-700:#10497B;--c-primary-200:#9CC3E4;--c-primary-50:#E7F0F8;
  --c-accent:#0E9E8E;--c-accent-50:#E5F5F3;
  --c-highlight:#E1873A;
  --c-bg:#FFFFFF;--c-bg-soft:#F5F8FC;--c-line:#E3EAF3;
  --c-text:#0F2033;--c-text-2:#4A5A6E;--c-text-3:#8595A8;
  --c-success:#2E9E6B;--c-warn:#C98A22;
  --r-card:14px;--r-img:12px;--r-btn:10px;--r-pill:999px;
  --sh-card:0 1px 2px rgba(16,54,86,.05),0 12px 24px -14px rgba(16,54,86,.18);
  --sh-hover:0 2px 4px rgba(16,54,86,.07),0 20px 36px -16px rgba(16,54,86,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::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:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.85;font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-soft{background:var(--c-bg-soft)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700}
.section-head p{font-size:14px;color:var(--c-text-2);margin-top:8px}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--c-primary);background:var(--c-primary-50);border-radius:var(--r-pill);padding:5px 12px;line-height:1;
}
.eyebrow.accent{color:var(--c-accent);background:var(--c-accent-50)}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:auto;padding:13px 28px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;transition:all .18s var(--ease);
  text-align:center;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -12px rgba(27,107,176,.8)}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-hover)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-secondary{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-secondary:hover{background:var(--c-primary-50);color:var(--c-primary-700);transform:translateY(-1px)}
.btn-text{color:var(--c-primary);font-weight:600;padding:8px 4px;background:none;border:0}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px}
.btn-highlight{background:var(--c-highlight);color:#fff;border-radius:var(--r-pill);padding:10px 20px;font-size:14px;font-weight:600}
.btn-highlight:hover{background:#cf7627;color:#fff;transform:translateY(-1px)}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}

/* ===== header / nav ===== */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .2s var(--ease)}
.site-header.is-scrolled{box-shadow:0 10px 26px -20px rgba(16,54,86,.45)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-50);color:var(--c-primary);border:1px solid var(--c-primary-200);
}
.brand-mark svg{width:21px;height:21px}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-key{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--c-text)}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.14em;margin-top:2px}

.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;padding:8px 12px;font-size:15px;color:var(--c-text-2);
  border-radius:var(--r-pill);transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-link:hover{background:var(--c-primary-50);color:var(--c-primary-700)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:60%;height:2px;border-radius:2px;background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-bg-soft);transition:all .18s var(--ease)}
.search-box svg{width:16px;height:16px;color:var(--c-text-3);flex:0 0 auto}
.search-box input{border:0;background:transparent;outline:none;width:180px;font-size:14px;color:var(--c-text)}
.search-box input::placeholder{color:var(--c-text-3)}
.search-box:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 2px var(--c-primary-50);width:236px;transition:all .18s var(--ease)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;color:var(--c-text);
}
.nav-toggle svg{width:20px;height:20px}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
.mobile-panel{display:none}

/* ===== page head ===== */
.page-head{position:relative;overflow:hidden;background:linear-gradient(180deg,var(--c-bg-soft) 0%,#fff 100%);padding:44px 0 64px}
.page-head::after{
  content:"";position:absolute;right:-120px;top:-90px;width:420px;height:420px;border-radius:50%;
  border:1px solid var(--c-line);opacity:.9;
}
.page-head .container{position:relative;z-index:2;max-width:1180px}
.breadcrumb{margin-bottom:16px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"›";color:var(--c-text-3)}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.breadcrumb [aria-current="page"]{color:var(--c-text-3)}
.page-head h1{font-size:40px;line-height:1.2;font-weight:700;margin:14px 0 16px;max-width:820px}
.page-head .lead{font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:760px}
.stat-row{display:flex;gap:44px;margin-top:32px;flex-wrap:wrap}
.stat{position:relative;padding-left:0}
.stat+.stat::before{content:"";position:absolute;left:-22px;top:6px;bottom:6px;width:1px;background:var(--c-line)}
.stat-num{font-size:34px;line-height:1.1;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums}
.stat-label{font-size:14px;color:var(--c-text-2);margin-top:6px}

/* ===== timeline ===== */
.timeline{margin-top:8px}
.tl-item{position:relative;display:flex;gap:24px;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item:last-child::before{display:none}
.tl-item::before{content:"";position:absolute;left:23px;top:56px;bottom:2px;width:1px;background:var(--c-line)}
.tl-num{
  flex:0 0 48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--c-primary-200);color:var(--c-primary);font-weight:700;font-size:16px;
  box-shadow:var(--sh-card);position:relative;z-index:1;font-variant-numeric:tabular-nums;
}
.tl-body{padding-top:4px}
.tl-body h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:8px}
.tl-body p{font-size:15px;color:var(--c-text-2);line-height:1.85;max-width:760px}
.tl-tag{
  display:inline-block;margin-top:12px;font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--c-accent);background:var(--c-accent-50);border-radius:var(--r-pill);padding:4px 10px;line-height:1.2;
}

/* ===== cards ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);display:flex;flex-direction:column;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(27,107,176,.3)}
.card:hover .card-title{color:var(--c-primary)}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-50)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.badge{
  align-self:flex-start;font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1;
  padding:5px 10px;border-radius:var(--r-pill);color:var(--c-primary);background:var(--c-primary-50);
}
.badge.accent{color:var(--c-accent);background:var(--c-accent-50)}
.card-title{font-size:19px;line-height:1.45;font-weight:600;transition:color .18s var(--ease)}
.card-desc{font-size:14px;line-height:1.75;color:var(--c-text-2)}
.card-meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.card-meta span{display:inline-flex;align-items:center;gap:6px}
.card-meta span+span::before{content:"·";color:var(--c-text-3)}

/* ===== faq ===== */
.faq-wrap{max-width:880px}
.faq-list{list-style:none;margin:0}
.faq-list li{margin-bottom:12px}
.faq-list .accordion-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.faq-list .accordion-item.is-active{border-color:rgba(27,107,176,.25);box-shadow:var(--sh-card)}
.faq-list .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--c-text);border:0;background:#fff;
}
.faq-list .accordion-title:hover{color:var(--c-primary)}
.faq-list .accordion-title::before{display:none}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;position:relative;color:var(--c-primary);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .18s var(--ease),opacity .18s var(--ease);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.accordion-item.is-active .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-list .accordion-content{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2);border:0;background:#fff}
.faq-list .accordion-content p+p{margin-top:12px}

/* ===== chips / related ===== */
.related-box{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;box-shadow:var(--sh-card);
}
.related-box h3{font-size:20px;font-weight:600;margin-bottom:6px}
.related-box p{font-size:14px;color:var(--c-text-2)}
.chip-group{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;font-size:14px;color:var(--c-text-2);
  transition:all .18s var(--ease);
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-50);transform:translateY(-1px)}
.chip.current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}

/* ===== cta band ===== */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--c-line)}
.cta-band .cta-bg{position:absolute;inset:0;z-index:0}
.cta-band .cta-bg img{width:100%;height:100%;object-fit:cover}
.cta-band .cta-bg::after{content:"";position:absolute;inset:0;background:rgba(255,255,255,.92)}
.cta-band .cta-inner{position:relative;z-index:1;padding:56px;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.3;margin-bottom:12px}
.cta-band p{font-size:15px;color:var(--c-text-2);max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}

/* ===== footer ===== */
.site-footer{background:var(--c-bg-soft);border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:96px}
.footer-grid{gap:32px}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-key{font-size:16px}
.footer-col p{font-size:14px;line-height:1.8;color:var(--c-text-2);max-width:300px}
.footer-contact{display:flex;flex-direction:column;gap:6px;margin-top:16px;font-size:13px;color:var(--c-text-3)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--c-text-2);transition:color .18s var(--ease),transform .18s var(--ease);display:inline-block}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px)}
.footer-sub{display:flex;gap:8px;flex-wrap:wrap}
.footer-sub input{
  flex:1 1 160px;min-width:0;height:44px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;color:var(--c-text);font-size:14px;outline:none;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.footer-sub input:focus{border-color:var(--c-primary);box-shadow:0 0 0 2px var(--c-primary-50)}
.footer-sub input.error{border-color:var(--c-warn);box-shadow:0 0 0 2px rgba(201,138,34,.14)}
.footer-sub input.ok{border-color:var(--c-success);box-shadow:0 0 0 2px rgba(46,158,107,.14)}
.footer-sub .btn{padding:12px 20px;font-size:14px}
.footer-note{font-size:13px;color:var(--c-text-3);margin-top:10px;max-width:280px}
.footer-qr{display:flex;align-items:center;gap:12px;margin-top:18px}
.footer-qr-box{
  width:88px;height:88px;border:1px solid var(--c-line);border-radius:var(--r-img);background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);
}
.footer-qr-box svg{width:40px;height:40px}
.footer-qr span{font-size:13px;color:var(--c-text-3);line-height:1.7}
.footer-bottom{
  margin-top:48px;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);
}
.footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}

/* ===== responsive ===== */
@media screen and (max-width:1023px){
  .container{padding:0 20px}
  .section{padding:72px 0}
  .main-nav{display:none}
  .search-box{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px}
  .page-head{padding:32px 0 48px}
  .page-head h1{font-size:32px}
  .stat-row{gap:32px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band .cta-inner{padding:40px}
  .site-footer{margin-top:72px}
  .mobile-panel{
    display:block;position:fixed;top:64px;left:0;right:0;bottom:0;z-index:55;
    background:#fff;border-top:1px solid var(--c-line);padding:20px;
    transform:translateY(-8px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
    overflow-y:auto;
  }
  .mobile-panel.open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto}
  .mobile-panel .panel-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}
  .mobile-panel .panel-nav a{padding:13px 14px;border-radius:var(--r-btn);font-size:16px;color:var(--c-text-2);background:var(--c-bg-soft)}
  .mobile-panel .panel-nav a.active{color:var(--c-primary);background:var(--c-primary-50);font-weight:600}
  .mobile-panel .panel-search{display:flex;align-items:center;gap:8px;height:48px;padding:0 16px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:var(--c-bg-soft);margin-bottom:16px}
  .mobile-panel .panel-search input{border:0;background:transparent;outline:none;width:100%;font-size:15px}
  .mobile-panel .panel-actions{display:flex;flex-direction:column;gap:12px}
  .mobile-panel .panel-actions .btn,.mobile-panel .panel-actions .btn-highlight{width:100%;min-height:48px;border-radius:var(--r-btn)}
}
@media screen and (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .page-head h1{font-size:28px;margin:12px 0 14px}
  .page-head .lead{font-size:16px}
  .stat-row{gap:0;flex-direction:column;margin-top:24px}
  .stat+.stat::before{left:0;right:auto;top:0;bottom:auto;width:100%;height:1px}
  .stat+.stat{padding-top:16px;margin-top:16px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .section-head h2{font-size:22px}
  .card-grid{grid-template-columns:1fr;gap:16px}
  .tl-item{gap:16px;padding-bottom:28px}
  .tl-item::before{left:19px;top:48px}
  .tl-num{flex:0 0 40px;height:40px;font-size:15px}
  .tl-body h3{font-size:18px}
  .related-box{padding:22px}
  .cta-band .cta-inner{padding:28px 22px}
  .cta-band h2{font-size:22px}
  .cta-actions .btn{width:100%}
  .site-footer{padding:48px 0 0;margin-top:56px}
  .footer-qr-box{width:76px;height:76px}
  .footer-bottom{margin-top:36px;flex-direction:column;align-items:flex-start;gap:10px}
}
@media screen and (max-width:520px){
  .header-actions .btn-highlight{padding:9px 14px;font-size:13px}
  .brand-key{font-size:16px}
  .brand-mark{width:32px;height:32px}
}