/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --brand:#0D6EB8;
  --brand-dark:#0A5793;
  --brand-soft:#E7F2FA;
  --accent:#FF7A2F;
  --accent-2:#14B8A6;
  --bg:#F7FAFC;
  --card:#FFFFFF;
  --line:#E5EDF4;
  --text:#16232E;
  --muted:#5B6B7A;
  --weak:#8A9AA8;
  --r-card:16px;
  --r-panel:24px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,58,102,.06);
  --sh-2:0 8px 24px rgba(13,58,102,.08);
  --sh-3:0 20px 48px rgba(13,58,102,.14);
  --sh-cta:0 10px 22px rgba(255,122,47,.26);
  --dur:.2s;
  --ease:ease-out;
  --nav-h:64px;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
/* ============ 容器与板块 ============ */
.container{width:min(1200px,100% - 64px);margin-inline:auto}
.section{padding:104px 0}
.section--tight{padding:80px 0}
.section--soft{background:linear-gradient(180deg,#FFFFFF 0%,var(--brand-soft) 100%)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.sec-head h2{font-size:31px;line-height:1.3;font-weight:700}
.sec-head .sec-desc{margin-top:12px;color:var(--muted);font-size:15px;max-width:640px}
.sec-link{color:var(--brand);font-size:14px;font-weight:600;white-space:nowrap;border-bottom:1px solid transparent;transition:border-color var(--dur) var(--ease)}
.sec-link:hover{border-color:var(--brand)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand);background:var(--brand-soft);border-radius:var(--r-pill);padding:6px 14px;font-weight:600}
/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-cta)}
.btn-primary:hover{background:#F06C1F;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(255,122,47,.3)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-2px)}
.btn-ghost:active{background:#D8E9F6;transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-btn{color:var(--brand);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px;position:relative}
.link-btn::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease)}
.link-btn:hover::after{transform:scaleX(1)}
/* ============ 徽章 ============ */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand);font-size:12.5px;font-weight:600;letter-spacing:0}
.badge--accent{background:#FFF1E7;color:#D95F14}
.badge--ok{background:#E4F7F4;color:#0E8C7F}
/* ============ 悬浮胶囊导航 ============ */
.nav-fixed{position:fixed;inset:12px 0 auto;z-index:60;pointer-events:none}
.nav-shell{
  pointer-events:auto;width:min(1200px,100% - 40px);margin-inline:auto;height:var(--nav-h);
  display:flex;align-items:center;gap:20px;padding:0 12px 0 20px;
  background:rgba(255,255,255,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-pill);box-shadow:var(--sh-2);
  transition:height var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-shell.is-scrolled{height:56px;box-shadow:var(--sh-3)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--brand),#3E9BD8);position:relative;flex-shrink:0}
.brand-mark::before{content:"";position:absolute;inset:10px;border:2px solid #fff;border-radius:50%;border-right-color:transparent;transform:rotate(-35deg)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text .b1{font-size:14.5px;font-weight:700;color:var(--text)}
.brand-text .b2{font-size:11.5px;color:var(--muted);font-weight:500}
.nav-links{display:flex;align-items:center;gap:2px;margin-inline:auto}
.nav-links a{padding:9px 14px;border-radius:var(--r-pill);font-size:14.5px;color:var(--muted);font-weight:500;transition:background var(--dur) var(--ease),color var(--dur) var(--ease)}
.nav-links a:hover{background:#F1F5F9;color:var(--text)}
.nav-links a.active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.drawer-toggle{display:none;width:40px;height:40px;border-radius:var(--r-pill);background:var(--brand-soft);align-items:center;justify-content:center;flex-direction:column;gap:4px}
.drawer-toggle span{display:block;width:16px;height:2px;background:var(--brand);border-radius:2px;transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}
.drawer-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.drawer-toggle.is-open span:nth-child(2){opacity:0}
.drawer-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer{position:fixed;top:0;right:0;height:100%;width:min(320px,86vw);background:#fff;z-index:70;box-shadow:var(--sh-3);transform:translateX(102%);transition:transform .24s var(--ease);display:flex;flex-direction:column;padding:22px 20px}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{height:52px;display:flex;align-items:center;padding:0 14px;border-radius:var(--r-btn);color:var(--muted);font-size:15.5px;font-weight:500}
.drawer nav a:hover{background:#F1F5F9}
.drawer nav a.active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.drawer-close{width:36px;height:36px;border-radius:var(--r-pill);background:#F1F5F9;font-size:18px;color:var(--muted);line-height:1}
.scrim{position:fixed;inset:0;background:rgba(16,35,46,.45);opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur);z-index:65}
.scrim.is-open{opacity:1;visibility:visible}
/* ============ Hero ============ */
.hero{padding:150px 0 96px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;top:-180px;right:-140px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(13,110,184,.12),rgba(13,110,184,0) 68%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;position:relative}
.hero h1{font-size:44px;line-height:1.25;font-weight:700;margin:18px 0 0}
.hero-sub{margin-top:18px;color:var(--muted);font-size:17px;line-height:1.8;max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.trust{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted)}
.trust i{width:18px;height:18px;border-radius:50%;background:var(--brand-soft);display:inline-flex;align-items:center;justify-content:center;color:var(--brand);font-size:11px;font-style:normal;font-weight:700}
.hero-visual{position:relative}
.hero-shot{position:relative;border-radius:var(--r-panel);overflow:hidden;box-shadow:var(--sh-3);aspect-ratio:4/3.1;background:#DCE9F4}
.hero-shot img{width:100%;height:100%;object-fit:cover}
.hero-shot::after{content:"";position:absolute;inset:0;background:linear-gradient(150deg,rgba(255,255,255,.92) 0%,rgba(255,255,255,.6) 42%,rgba(13,110,184,.28) 100%)}
.hero-shot-cap{position:absolute;left:22px;bottom:20px;right:22px;z-index:2}
.hero-shot-cap strong{display:block;font-size:17px;font-weight:700}
.hero-shot-cap span{display:block;font-size:13px;color:var(--muted);margin-top:4px}
.float-card{position:absolute;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-2);padding:12px 16px;z-index:3}
.float-card .fc-num{font-size:20px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.2}
.float-card .fc-lab{font-size:12px;color:var(--muted)}
.fc-1{top:-18px;left:-16px}
.fc-2{bottom:-20px;right:-14px}
.fc-2 .fc-num{color:var(--accent-2)}
/* ============ 痛点长条 ============ */
.pain-list{display:flex;flex-direction:column;gap:14px}
.pain{display:grid;grid-template-columns:64px 1.4fr 1fr;align-items:center;gap:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 26px;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.pain:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.pain .no{font-size:22px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;opacity:.5}
.pain h3{font-size:17px;font-weight:600;line-height:1.5}
.pain .fix{font-size:14px;color:var(--muted);border-left:1px solid var(--line);padding-left:22px}
/* ============ 方案卡片错落 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.plan-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.plan-card .thumb{aspect-ratio:16/9;overflow:hidden;background:#E9F1F8}
.plan-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease)}
.plan-card:hover .thumb img{transform:scale(1.02)}
.plan-card .body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.plan-card h3{font-size:19px;font-weight:600;line-height:1.45}
.plan-card p{font-size:14.5px;color:var(--muted);line-height:1.75}
.plan-card .body .link-btn{margin-top:auto}
.plan-card--wide{grid-column:span 2;flex-direction:row;align-items:stretch}
.plan-card--wide .thumb{flex:1.15;aspect-ratio:auto;min-height:280px}
.plan-card--wide .body{flex:1;padding:34px 34px 30px;justify-content:center}
.plan-card--wide h3{font-size:22px}
/* ============ 数据指标 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);margin-top:44px}
.metric{padding-left:28px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0;padding-left:0}
.metric .num{font-size:36px;font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums;color:var(--accent)}
.metric:nth-child(2n) .num{color:var(--accent-2)}
.metric:nth-child(3n) .num{color:var(--brand)}
.metric .lab{margin-top:10px;font-size:14px;color:var(--muted)}
/* ============ CTA 长条 ============ */
.cta-bar{background:var(--brand-soft);border-radius:var(--r-panel);padding:38px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-bar h2{font-size:24px;font-weight:700;line-height:1.35}
.cta-bar p{margin-top:8px;color:var(--muted);font-size:14.5px}
.privacy-note{margin-top:16px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--weak)}
.privacy-note i{width:16px;height:16px;border-radius:50%;background:#E4F7F4;color:#0E8C7F;display:inline-flex;align-items:center;justify-content:center;font-size:10px;font-style:normal}
/* ============ 资讯卡片 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.post-link{display:flex;flex-direction:column;height:100%;padding:24px 26px;gap:12px}
.post-card h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--weak);font-variant-numeric:tabular-nums}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--weak)}
.empty-state{grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center}
.empty-state .es-icon{width:52px;height:52px;margin:0 auto 16px;border-radius:50%;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:20px}
.empty-state p{color:var(--muted);font-size:14.5px;margin-bottom:18px}
/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);position:relative;overflow:hidden;transition:box-shadow var(--dur) var(--ease)}
.faq-item::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--brand);opacity:0;transition:opacity var(--dur) var(--ease)}
.faq-item.is-open{box-shadow:var(--sh-2)}
.faq-item.is-open::before{opacity:1}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:20px 26px;font-size:16.5px;font-weight:600;line-height:1.55}
.faq-q .ico{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;transition:transform var(--dur) var(--ease)}
.faq-item.is-open .faq-q .ico{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a>div{overflow:hidden}
.faq-a p{padding:0 26px 22px;color:var(--muted);font-size:15px;line-height:1.8}
html.no-js .faq-a{grid-template-rows:1fr}
/* ============ 弹层 ============ */
.modal{position:fixed;inset:0;z-index:90;display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur)}
.modal.is-open{opacity:1;visibility:visible}
.modal-mask{position:absolute;inset:0;background:rgba(16,35,46,.45)}
.modal-panel{position:relative;width:480px;max-width:100%;background:#fff;border-radius:var(--r-panel);box-shadow:var(--sh-3);padding:30px 32px 32px;max-height:90vh;overflow:auto;transform:translateY(10px);transition:transform .22s var(--ease)}
.modal.is-open .modal-panel{transform:translateY(0)}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:20px}
.modal-head h2{font-size:20px;font-weight:700}
.modal-head p{font-size:13px;color:var(--muted);margin-top:6px}
.modal-close{width:34px;height:34px;border-radius:50%;background:#F1F5F9;color:var(--muted);font-size:17px;line-height:1}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:8px}
.field .req{color:var(--accent);margin-left:2px}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;padding:0 14px;height:48px;font-size:14.5px;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease)}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(13,110,184,.12);background:#FBFDFF}
.field.has-error input,.field.has-error select{border-color:#D93B3B;box-shadow:0 0 0 3px rgba(217,59,59,.1)}
.field .err{display:none;margin-top:6px;font-size:12.5px;color:#C33232}
.field.has-error .err{display:block}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);line-height:1.7}
.check input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand);flex-shrink:0}
.form-ok{display:none;margin-top:16px;font-size:13.5px;color:#0E8C7F;align-items:center;gap:8px}
.form-ok.is-show{display:flex}
/* ============ 页脚 ============ */
.site-foot{background:#F1F6FA;border-top:1px solid var(--line);padding:64px 0 0;margin-top:96px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.foot-grid h3{font-size:14.5px;font-weight:700;margin-bottom:16px}
.foot-grid p,.foot-grid li a,.foot-grid span{font-size:13.5px;color:var(--muted);line-height:1.9}
.foot-grid li{margin-bottom:8px}
.foot-grid li a:hover{color:var(--brand)}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-bottom{border-top:1px solid var(--line);padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot-bottom span{font-size:13px;color:var(--weak)}
/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{width:min(1200px,100% - 56px)}
}
@media (max-width:1023px){
  .container{width:min(1200px,100% - 48px)}
  .section{padding:76px 0}
  .hero{padding:132px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero h1{font-size:34px}
  .hero-shot{aspect-ratio:16/9}
  .pain{grid-template-columns:52px 1fr;}
  .pain .fix{border-left:0;padding-left:0;grid-column:2}
  .plan-grid{grid-template-columns:repeat(2,1fr)}
  .plan-card--wide{grid-column:span 2;flex-direction:column}
  .plan-card--wide .thumb{min-height:0;aspect-ratio:16/9}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .metric:nth-child(odd){border-left:0;padding-left:0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .sec-head h2{font-size:26px}
}
@media (max-width:767px){
  .container{width:min(1200px,100% - 40px)}
  .section{padding:56px 0}
  .hero{padding:112px 0 56px}
  .hero h1{font-size:28px;line-height:1.3}
  .hero-sub{font-size:15.5px}
  .hero-cta .btn{width:100%}
  .float-card{display:none}
  .nav-shell{height:56px;padding:0 10px 0 14px}
  .nav-links{position:absolute;top:calc(100% + 8px);left:0;right:0;flex-direction:row;overflow-x:auto;gap:6px;padding:8px;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh-2);margin:0}
  .nav-links a{white-space:nowrap;padding:8px 12px;font-size:13.5px}
  .nav-actions .btn-sm{display:none}
  .drawer-toggle{display:flex}
  .hero-trust{gap:14px}
  .pain{grid-template-columns:44px 1fr;padding:18px 18px}
  .pain h3{font-size:15.5px}
  .plan-grid{grid-template-columns:1fr}
  .plan-card--wide{grid-column:span 1}
  .post-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .metric .num{font-size:28px}
  .cta-bar{padding:26px 22px;flex-direction:column;align-items:flex-start}
  .cta-bar .btn{width:100%}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:30px}
  .faq-q{font-size:15.5px;padding:18px 20px}
  .faq-a p{padding:0 20px 20px}
  .foot-grid{grid-template-columns:1fr}
  .modal{padding:0;align-items:flex-end}
  .modal-panel{width:100%;border-radius:24px 24px 0 0;padding:26px 22px 30px}
}
@media (max-width:380px){
  .metrics{grid-template-columns:1fr}
  .metric{border-left:0;padding-left:0}
}

/* roulang page: category1 */
:root{
  --brand:#0D6EB8;
  --brand-dark:#0A5793;
  --brand-soft:#E7F2FA;
  --accent:#FF7A2F;
  --accent-hover:#F06A1C;
  --accent-2:#14B8A6;
  --bg:#F7FAFC;
  --card:#FFFFFF;
  --line:#E5EDF4;
  --text:#16232E;
  --muted:#5B6B7A;
  --weak:#8A9AA8;
  --r-card:16px;
  --r-panel:24px;
  --r-btn:12px;
  --sh1:0 1px 2px rgba(13,58,102,.06);
  --sh2:0 8px 24px rgba(13,58,102,.08);
  --sh3:0 20px 48px rgba(13,58,102,.14);
  --font:PingFang SC,"HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);letter-spacing:0}
img{max-width:100%;height:auto;display:block;border-radius:12px}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:var(--brand-soft);color:var(--brand-dark)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 顶部悬浮胶囊导航 ---------- */
.site-head{position:fixed;top:0;left:0;right:0;z-index:90;padding:16px 0;transition:padding .2s ease-out}
.site-head.is-scrolled{padding:8px 0}
.nav-pill{display:flex;align-items:center;gap:18px;height:64px;padding:0 12px 0 20px;border-radius:999px;background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid var(--line);box-shadow:var(--sh2);transition:height .2s ease-out,box-shadow .2s ease-out}
.site-head.is-scrolled .nav-pill{height:56px;box-shadow:var(--sh3)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--brand),#3E9CD9);position:relative;flex:0 0 auto}
.brand-mark::after{content:"";position:absolute;left:8px;top:8px;width:14px;height:14px;border-radius:4px;background:#fff;opacity:.92;transform:rotate(45deg)}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-top{font-size:15px;font-weight:700;color:var(--text)}
.brand-sub{font-size:11.5px;color:var(--brand);letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{padding:9px 15px;border-radius:999px;font-size:14.5px;color:var(--muted);transition:background .18s ease-out,color .18s ease-out}
.nav-links a:hover{background:#F1F6FA;color:var(--text)}
.nav-links a.active{background:var(--brand-soft);color:var(--brand-dark);font-weight:600}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15.5px;font-weight:600;white-space:nowrap;transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px rgba(255,122,47,.26)}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,122,47,.22)}
.btn-ghost{background:#fff;color:var(--brand-dark);border:1px solid var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14.5px;border-bottom:1px solid transparent;transition:border-color .18s ease-out,color .18s ease-out}
.link-arrow:hover{border-color:var(--brand);color:var(--brand-dark)}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);font-size:12.5px;font-weight:600}
.badge-soft{background:#F1F6FA;color:var(--muted)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:158px 0 88px;overflow:hidden;border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.22}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(247,250,252,.72) 0%,rgba(247,250,252,.94) 62%,#F7FAFC 100%)}
.hero .container{position:relative;z-index:2}
.hero-inner{max-width:820px}
.hero h1{font-size:40px;line-height:1.28;font-weight:700;margin:18px 0 0}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.85;color:var(--muted);max-width:720px}
.hero-lead strong{color:var(--brand-dark);font-weight:600}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:30px}
.hero-marks{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.mark{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted)}
.mark i{width:18px;height:18px;border-radius:50%;background:var(--brand-soft);position:relative;flex:0 0 auto}
.mark i::after{content:"";position:absolute;left:6px;top:4px;width:5px;height:8px;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(42deg)}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head h2{font-size:30px;line-height:1.32;font-weight:700;margin:14px 0 14px}
.sec-head p{color:var(--muted)}
.sec-head p+p{margin-top:10px}

/* ---------- 图文交替 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split+.split{margin-top:80px}
.split-media{position:relative;border-radius:var(--r-panel);overflow:hidden;box-shadow:var(--sh2);aspect-ratio:16/11;background:#EAF2F8}
.split-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .22s ease-out}
.split-media:hover img{transform:scale(1.02)}
.split-media figcaption{position:absolute;left:16px;bottom:16px;background:rgba(255,255,255,.92);border-radius:999px;padding:6px 14px;font-size:12.5px;color:var(--brand-dark);font-weight:600}
.split.reverse .split-media{order:2}
.split-body h3{font-size:22px;line-height:1.4;font-weight:600;margin-bottom:14px}
.split-body p{color:var(--muted)}
.step-list{margin-top:22px;display:grid;gap:12px}
.step-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text)}
.step-list li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand);margin-top:9px;flex:0 0 auto}

/* ---------- 编号要点长条 ---------- */
.point-list{display:grid;gap:16px}
.point{display:grid;grid-template-columns:66px 1fr minmax(200px,300px);gap:24px;align-items:center;padding:22px 28px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);transition:box-shadow .2s ease-out,transform .2s ease-out}
.point:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.point .num{font-size:22px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.point h3{font-size:17px;font-weight:600;margin-bottom:4px}
.point p{font-size:14px;color:var(--muted);line-height:1.7}
.point .hint{font-size:13.5px;color:var(--weak);border-left:1px solid var(--line);padding-left:20px;font-variant-numeric:tabular-nums}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:900px}
.faq details{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden;transition:box-shadow .2s ease-out}
.faq details:hover{box-shadow:var(--sh2)}
.faq details[open]::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:0 3px 3px 0;background:var(--brand)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 26px;font-size:16.5px;font-weight:600}
.faq summary::-webkit-details-marker{display:none}
.faq .ico{position:relative;width:20px;height:20px;flex:0 0 auto}
.faq .ico::before,.faq .ico::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.faq .ico::before{left:3px;top:9px;width:14px;height:2px}
.faq .ico::after{left:9px;top:3px;width:2px;height:14px}
.faq details[open] .ico::after{transform:rotate(90deg);opacity:0}
.faq .ans{padding:0 26px 22px;color:var(--muted);font-size:15px;line-height:1.8}

/* ---------- CTA 长条 ---------- */
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:36px 40px;background:var(--brand-soft);border:1px solid #D6E7F5;border-radius:var(--r-panel)}
.cta-band h2{font-size:24px;line-height:1.4;font-weight:700;margin-bottom:10px}
.cta-band p{color:var(--muted);font-size:15px}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}
.privacy-note{display:flex;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--weak)}
.privacy-note i{width:18px;height:18px;border-radius:6px;background:#fff;border:1px solid #CBE3F3;position:relative;flex:0 0 auto}
.privacy-note i::after{content:"";position:absolute;left:5px;top:3px;width:6px;height:9px;border-right:2px solid var(--accent-2);border-bottom:2px solid var(--accent-2);transform:rotate(40deg)}

/* ---------- 页脚 ---------- */
.site-foot{background:#F1F6FA;border-top:1px solid var(--line);padding:64px 0 0;margin-top:8px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand .brand-mark{width:26px;height:26px;border-radius:8px}
.foot-brand .brand-mark::after{left:7px;top:7px;width:12px;height:12px}
.site-foot h3{font-size:15px;font-weight:600;margin-bottom:14px}
.site-foot p{font-size:13.5px;color:var(--muted);line-height:1.8}
.site-foot ul{display:grid;gap:10px}
.site-foot ul a{font-size:13.5px;color:var(--muted);transition:color .18s ease-out}
.site-foot ul a:hover{color:var(--brand)}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:48px;padding:20px 0;border-top:1px solid var(--line);font-size:13px;color:var(--weak)}

/* ---------- 移动抽屉 ---------- */
.drawer-scrim{position:fixed;inset:0;background:rgba(16,35,46,.45);opacity:0;pointer-events:none;transition:opacity .2s ease-out;z-index:100}
.drawer-scrim.is-open{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);background:#fff;z-index:110;transform:translateX(102%);transition:transform .24s ease-out;display:flex;flex-direction:column;padding:22px 20px;box-shadow:var(--sh3)}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-head strong{font-size:15px}
.drawer-close{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--muted)}
.drawer nav{display:grid}
.drawer nav a{height:52px;display:flex;align-items:center;padding:0 12px;border-radius:12px;font-size:15px;color:var(--muted)}
.drawer nav a.active{background:var(--brand-soft);color:var(--brand-dark);font-weight:600}
.drawer .drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.drawer .drawer-foot .btn{width:100%}

/* ---------- 弹层与表单 ---------- */
.modal{position:fixed;inset:0;z-index:130;display:none}
.modal.is-open{display:block}
.modal-scrim{position:absolute;inset:0;background:rgba(16,35,46,.45)}
.modal-panel{position:relative;z-index:2;width:480px;max-width:calc(100% - 32px);margin:6vh auto;background:#fff;border-radius:var(--r-panel);padding:30px;box-shadow:var(--sh3);max-height:88vh;overflow:auto}
.modal-close{position:absolute;right:16px;top:16px;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:17px;color:var(--muted);transition:background .18s ease-out}
.modal-close:hover{background:#F1F6FA}
.modal-panel h2{font-size:22px;font-weight:700;margin:14px 0 8px}
.modal-sub{font-size:14px;color:var(--muted);margin-bottom:22px}
.form{display:grid;gap:16px}
.field{display:grid;gap:8px}
.field label{font-size:14px;font-weight:600}
.req{color:var(--accent)}
.field input,.field select,.field textarea{width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;font-size:15px;transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out}
.field textarea{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(13,110,184,.14);background:#FBFDFF}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#E24C4B}
.err-tip{display:none;font-size:12.5px;color:#E24C4B}
.field.has-error .err-tip{display:block}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);line-height:1.7}
.check input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex:0 0 auto}
.form-success{display:none;align-items:center;gap:10px;font-size:14.5px;font-weight:600;color:var(--accent-2)}
.form-success.is-on{display:flex}
.form-success i{width:20px;height:20px;border-radius:50%;background:rgba(20,184,166,.14);position:relative}
.form-success i::after{content:"";position:absolute;left:6px;top:4px;width:6px;height:10px;border-right:2px solid var(--accent-2);border-bottom:2px solid var(--accent-2);transform:rotate(42deg)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .point{grid-template-columns:60px 1fr minmax(170px,240px)}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-right .btn-primary{display:none}
  .section{padding:72px 0}
  .hero{padding:132px 0 68px}
  .hero h1{font-size:34px}
  .split{grid-template-columns:1fr;gap:28px}
  .split.reverse .split-media{order:0}
  .split+.split{margin-top:56px}
  .point{grid-template-columns:52px 1fr;gap:18px}
  .point .hint{border-left:0;padding-left:0;grid-column:1/-1}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .site-head{padding:10px 0}
  .nav-pill{height:56px;padding:0 10px 0 14px;gap:10px}
  .brand-sub{font-size:10.5px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .hero{padding:112px 0 56px}
  .hero h1{font-size:28px;line-height:1.32}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-marks{flex-direction:column;gap:10px}
  .sec-head h2{font-size:24px}
  .split-body h3{font-size:20px}
  .point{padding:20px}
  .faq summary{padding:18px 20px;font-size:15.5px}
  .faq .ans{padding:0 20px 20px}
  .cta-band{padding:26px 22px}
  .cta-band h2{font-size:20px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-bottom{flex-direction:column;gap:6px}
  .modal-panel{position:absolute;left:0;right:0;bottom:0;top:auto;width:100%;max-width:100%;margin:0;border-radius:24px 24px 0 0;max-height:92vh;padding:26px 20px}
}

@media (max-width:1023px){
  .site-head{position:static;padding:10px 0}
  .nav-pill{height:auto;flex-wrap:wrap;padding:12px;border-radius:24px}
  .nav-links{display:flex;flex-wrap:wrap;margin:0}
  .nav-toggle{display:none}
}

/* roulang page: article */
:root{
  --brand:#0D6EB8;
  --brand-deep:#0A5793;
  --brand-light:#E7F2FA;
  --accent:#FF7A2F;
  --accent-2:#14B8A6;
  --bg:#F7FAFC;
  --card:#FFFFFF;
  --line:#E5EDF4;
  --text:#16232E;
  --sub:#5B6B7A;
  --weak:#8A9AA8;
  --r-card:16px;
  --r-panel:24px;
  --r-btn:12px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(13,58,102,.06);
  --sh2:0 8px 24px rgba(13,58,102,.08);
  --sh3:0 20px 48px rgba(13,58,102,.14);
  --sh-accent:0 10px 22px rgba(255,122,47,.26);
  --nav-h:64px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:96px;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;margin:0;}
button{cursor:pointer;border:none;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:0;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
::selection{background:var(--brand-light);color:var(--brand-deep);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

/* ============ 顶部悬浮胶囊导航 ============ */
.site-head{
  position:fixed;
  top:14px;
  left:0;
  right:0;
  z-index:100;
  padding:0 20px;
}
.head-pill{
  max-width:1200px;
  margin:0 auto;
  height:var(--nav-h);
  display:flex;
  align-items:center;
  gap:18px;
  padding:0 12px 0 18px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--sh2);
  transition:height .2s ease-out,box-shadow .2s ease-out;
}
.site-head.scrolled .head-pill{height:56px;box-shadow:var(--sh3);}

.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:30px;height:30px;flex:none;border-radius:9px;
  background:linear-gradient(135deg,#0D6EB8,#0A5793);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;left:9px;top:9px;width:12px;height:12px;
  background:#fff;border-radius:3px;transform:rotate(45deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16;}
.brand-text strong{font-size:15px;font-weight:700;color:var(--text);white-space:nowrap;}
.brand-text em{font-size:11px;font-style:normal;color:var(--weak);letter-spacing:1px;}

.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  display:inline-flex;align-items:center;
  height:38px;padding:0 16px;
  border-radius:var(--r-pill);
  font-size:14px;color:var(--sub);
  transition:background .18s ease-out,color .18s ease-out;
  white-space:nowrap;
}
.nav-links a:hover{background:#F1F6FA;color:var(--brand-deep);}
.nav-links a.active{background:var(--brand-light);color:var(--brand);font-weight:600;}

.head-actions{display:flex;align-items:center;gap:10px;flex:none;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
  transition:border-color .18s ease-out;
}
.nav-toggle:hover{border-color:var(--brand)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-deep);border-radius:2px;transition:transform .18s ease-out,opacity .18s ease-out;}
.nav-toggle.is-on span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-on span:nth-child(2){opacity:0;}
.nav-toggle.is-on span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.drawer{
  position:fixed;top:0;right:0;height:100%;
  width:min(84vw,340px);
  background:#fff;z-index:130;
  transform:translateX(102%);
  transition:transform .26s ease-out;
  box-shadow:var(--sh3);
  display:flex;flex-direction:column;
  padding:92px 24px 24px;
}
.drawer.is-on{transform:translateX(0);}
.drawer a{
  display:flex;align-items:center;
  height:52px;font-size:15px;color:var(--sub);
  border-bottom:1px solid var(--line);
  transition:color .18s ease-out,padding-left .18s ease-out;
}
.drawer a:hover,.drawer a.active{color:var(--brand);}
.drawer a:hover{padding-left:6px;}
.drawer-cta{margin-top:auto;padding-top:20px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,35,46,.45);
  z-index:125;opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s;
}
.drawer-mask.is-on{opacity:1;visibility:visible;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{
  background:var(--accent);color:#fff;
  box-shadow:var(--sh-accent);
}
.btn-primary:hover{background:#F26B1D;box-shadow:0 12px 26px rgba(255,122,47,.32);}
.btn-ghost{
  background:#fff;color:var(--brand);border-color:var(--brand);
}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-deep);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14px;font-weight:600;
  position:relative;
}
.link-more::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:100%;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;
}
.link-more:hover::after{transform:scaleX(1);}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.2px;
}
.badge-soft{background:#F1F6FA;color:var(--sub);}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin:24px 0 26px;
  font-size:13px;color:var(--weak);
}
.breadcrumb a{color:var(--sub);transition:color .16s ease-out;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C7D5E1;}
.breadcrumb .current{color:var(--text);font-weight:600;}

/* ============ 文章骨架 ============ */
.page-main{padding-bottom:40px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 220px;
  gap:56px;
  justify-content:center;
  align-items:start;
  padding-bottom:24px;
}
.article-main{min-width:0;}

.article-head{
  padding-bottom:26px;
  border-bottom:1px solid var(--line);
  margin-bottom:32px;
}
.article-title{
  font-size:34px;
  line-height:1.35;
  font-weight:700;
  color:#12202B;
  margin:14px 0 18px;
  word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;
  font-size:13px;color:var(--weak);
}
.article-meta .dot{width:1px;height:12px;background:var(--line);display:inline-block;}
.article-meta a{color:var(--sub);}
.article-meta a:hover{color:var(--brand);}

/* ============ 正文阅读区 ============ */
.article-body{
  font-size:17px;
  line-height:1.9;
  color:#26333F;
  max-width:760px;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;font-size:17px;line-height:1.9;}
.article-body h2{
  font-size:24px;line-height:1.4;font-weight:700;color:#12202B;
  margin:40px 0 16px;padding-left:14px;
  border-left:3px solid var(--brand);
  scroll-margin-top:100px;
}
.article-body h3{
  font-size:20px;line-height:1.5;font-weight:600;color:#12202B;
  margin:32px 0 12px;
  scroll-margin-top:100px;
}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;line-height:1.9;}
.article-body li::marker{color:var(--brand);}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;
  background:var(--brand-light);
  border-left:4px solid var(--brand);
  border-radius:12px;
  color:#274257;
  font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:24px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:10px;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-deep);}
.article-body strong{font-weight:700;color:#12202B;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border-radius:12px;overflow:hidden;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--brand-light);font-weight:600;color:#12202B;}
.article-body code{
  background:#F1F6FA;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--brand-deep);
}

/* ============ 目录 ============ */
.toc{
  display:none;
  position:sticky;top:104px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh1);
  padding:18px 16px;
}
.toc.is-on{display:block;}
.toc h3{
  font-size:13px;font-weight:600;color:var(--sub);
  margin-bottom:10px;padding-left:2px;
}
.toc a{
  display:block;
  font-size:13px;line-height:1.6;color:var(--sub);
  padding:6px 0 6px 10px;
  border-left:2px solid transparent;
  transition:color .16s ease-out,border-color .16s ease-out;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc a:hover,.toc a.on{color:var(--brand);border-left-color:var(--brand);}

/* ============ 相关推荐 ============ */
.related{margin-top:64px;padding-top:44px;border-top:1px solid var(--line);}
.related-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-bottom:24px;
}
.related-head h2{font-size:22px;font-weight:700;color:#12202B;}
.related-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:#D6E5F1;}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-light);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.card:hover .card-thumb img{transform:scale(1.02);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.card-body h3{
  font-size:17px;font-weight:600;line-height:1.5;color:#12202B;
  margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:14px;line-height:1.75;color:var(--sub);
  margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;gap:8px;
  font-size:12px;color:var(--weak);
}
.card-foot .dot{width:3px;height:3px;border-radius:50%;background:#C7D5E1;}

/* ============ 文末操作 ============ */
.article-actions{
  margin-top:44px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  flex-wrap:wrap;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.article-actions .link-back{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--brand);
}
.article-actions .link-back:hover{color:var(--brand-deep);}

.privacy-note{
  margin-top:28px;
  display:flex;align-items:flex-start;gap:10px;
  font-size:13px;line-height:1.7;color:var(--weak);
}
.privacy-note .ico{
  width:16px;height:16px;flex:none;margin-top:3px;
  border-radius:4px;background:var(--accent-2);
  position:relative;
}
.privacy-note .ico::after{
  content:"";position:absolute;left:5px;top:3px;width:5px;height:8px;
  border-right:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(42deg);
}

/* ============ 空态 ============ */
.empty-state{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh1);
  padding:64px 24px;
  text-align:center;
}
.empty-ico{
  display:block;width:48px;height:48px;margin:0 auto 18px;
  border-radius:14px;border:2px solid var(--line);
  position:relative;
}
.empty-ico::after{
  content:"";position:absolute;left:13px;top:13px;width:18px;height:18px;
  border-radius:4px;background:var(--brand-light);
}
.empty-state p{font-size:16px;color:var(--sub);margin-bottom:20px;}

/* ============ 弹层 ============ */
.modal{
  position:fixed;inset:0;z-index:200;
  opacity:0;visibility:hidden;
  transition:opacity .2s ease-out,visibility .2s;
}
.modal.is-on{opacity:1;visibility:visible;}
.modal-mask{position:absolute;inset:0;background:rgba(16,35,46,.45);}
.modal-inner{
  position:relative;height:100%;
  display:flex;align-items:center;justify-content:center;
  padding:24px;
}
.modal-panel{
  width:480px;max-width:100%;
  max-height:88vh;overflow:auto;
  background:#fff;border-radius:var(--r-panel);
  box-shadow:var(--sh3);
  padding:28px 28px 26px;
  position:relative;
}
.modal-close{
  position:absolute;right:18px;top:18px;
  width:32px;height:32px;border-radius:10px;
  color:var(--weak);font-size:20px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:background .16s ease-out,color .16s ease-out;
}
.modal-close:hover{background:#F1F6FA;color:var(--brand-deep);}
.modal-panel h3{font-size:20px;font-weight:700;color:#12202B;margin-bottom:6px;padding-right:34px;}
.modal-sub{font-size:13px;color:var(--sub);margin-bottom:22px;}

.form .field{margin-bottom:16px;}
.form label{
  display:block;font-size:13px;font-weight:600;color:var(--sub);margin-bottom:8px;
}
.form label em{color:var(--accent);font-style:normal;margin-left:2px;}
.form input[type="text"],
.form input[type="tel"],
.form select,
.form textarea{
  width:100%;
  height:48px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  font-size:15px;
  color:var(--text);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
  -webkit-appearance:none;appearance:none;
}
.form select{
  background-image:linear-gradient(45deg,transparent 50%,#8A9AA8 50%),linear-gradient(135deg,#8A9AA8 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
  padding-right:40px;
}
.form textarea{
  height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical;
}
.form input::placeholder,.form textarea::placeholder{color:#A9B7C2;}
.form input:focus,.form select:focus,.form textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(13,110,184,.12);
  background:#FBFDFF;
}
.form .field-err{
  display:none;
  font-size:12px;color:#D93A2B;margin-top:6px;
}
.form .field.is-err input,
.form .field.is-err select{border-color:#D93A2B;}
.form .field.is-err .field-err{display:block;}

.check{
  display:flex;align-items:flex-start;gap:10px;
  font-size:13px;color:var(--sub);line-height:1.6;
  margin:6px 0 18px;
}
.check input{
  width:18px;height:18px;flex:none;margin-top:2px;
  accent-color:var(--brand);
}
.form-ok{
  display:none;
  font-size:13px;color:var(--accent-2);font-weight:600;
  margin-bottom:12px;
}
.form-ok.is-on{display:block;}

/* ============ 页脚 ============ */
.site-foot{
  background:#F1F6FA;
  border-top:1px solid var(--line);
  margin-top:96px;
  padding:56px 0 0;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-grid h3{
  font-size:15px;font-weight:600;color:var(--text);
  margin-bottom:14px;
}
.foot-grid p{
  font-size:13px;line-height:1.85;color:var(--sub);
}
.foot-grid ul li{margin-bottom:10px;}
.foot-grid ul a{
  font-size:13px;color:var(--sub);
  transition:color .16s ease-out;
}
.foot-grid ul a:hover{color:var(--brand);}
.foot-bottom{
  border-top:1px solid var(--line);
  margin-top:44px;
  padding:18px 0;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--weak);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 200px;gap:40px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc{display:none !important;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-title{font-size:30px;}
}
@media (max-width:767px){
  body{padding-top:88px;}
  .container{padding:0 20px;}
  .site-head{top:10px;padding:0 12px;}
  .head-pill{height:56px;padding:0 10px 0 14px;gap:10px;}
  .head-actions .btn{display:none;}
  .article-title{font-size:26px;line-height:1.35;}
  .article-body,.article-body p{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin-top:34px;}
  .article-body h3{font-size:18px;}
  .related-grid{grid-template-columns:1fr;}
  .article-actions{flex-direction:column;align-items:stretch;}
  .article-actions .link-back{justify-content:center;}
  .site-foot{padding-top:44px;margin-top:64px;}
  .foot-grid{grid-template-columns:1fr;}
  .modal-inner{padding:0;align-items:flex-end;}
  .modal-panel{
    width:100%;max-width:100%;
    border-radius:24px 24px 0 0;
    max-height:92vh;
    padding:24px 20px 26px;
  }
}
@media (max-width:520px){
  .brand-text em{display:none;}
  .brand-text strong{font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand:#0D6EB8;
  --brand-dark:#0A5793;
  --brand-light:#E7F2FA;
  --accent:#FF7A2F;
  --accent-2:#14B8A6;
  --bg:#F7FAFC;
  --card:#FFFFFF;
  --line:#E5EDF4;
  --text:#16232E;
  --muted:#5B6B7A;
  --weak:#8A9AA8;
  --soft:#F1F6FA;
  --r-card:16px;
  --r-panel:24px;
  --r-btn:12px;
  --sh1:0 1px 2px rgba(13,58,102,.06);
  --sh2:0 8px 24px rgba(13,58,102,.08);
  --sh3:0 20px 48px rgba(13,58,102,.14);
  --sh-accent:0 10px 22px rgba(255,122,47,.26);
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:104px 0}
.section-sm{padding:72px 0}
.section-soft{background:var(--soft)}
.section-white{background:var(--card)}
.sec-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:0;
}
h2{font-size:31px;line-height:1.3;font-weight:700;margin-top:16px}
.sec-head p{margin-top:14px;color:var(--muted);font-size:16px}
h3{font-size:21px;line-height:1.4;font-weight:600}

/* ============ 导航 ============ */
.site-head{position:fixed;top:16px;left:0;right:0;z-index:80;padding:0 24px}
.nav-toggle-input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.head-inner{
  max-width:1200px;margin:0 auto;height:64px;
  display:flex;align-items:center;gap:18px;
  padding:0 12px 0 18px;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--sh2);
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  position:relative;flex-shrink:0;
}
.brand-mark::after{
  content:"";position:absolute;left:8px;top:8px;width:14px;height:14px;
  border-radius:4px;background:rgba(255,255,255,.9);
  clip-path:polygon(0 0,100% 0,100% 45%,45% 45%,45% 100%,0 100%);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:15px;color:var(--text);font-weight:700}
.brand-text em{font-size:11px;color:var(--weak);font-style:normal;letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{
  font-size:14px;color:var(--muted);padding:9px 14px;border-radius:999px;
  white-space:nowrap;transition:background var(--t),color var(--t);
}
.nav-links a:hover{background:var(--soft);color:var(--text)}
.nav-links a.active{background:var(--brand-light);color:var(--brand);font-weight:600}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;text-decoration:none;
  font-size:15px;font-weight:600;border-radius:var(--r-btn);
  height:48px;padding:0 24px;transition:transform var(--t),background var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-accent)}
.btn-primary:hover{background:#F26A1C;color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:999px}
.head-cta{flex-shrink:0}
.menu-btn{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  margin-left:auto;flex-shrink:0;
}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text)}
.mask{
  position:fixed;inset:0;background:rgba(16,35,46,.45);
  opacity:0;pointer-events:none;transition:opacity var(--t);z-index:90;
}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,340px);
  background:#fff;z-index:95;transform:translateX(102%);
  transition:transform 220ms ease-out;
  display:flex;flex-direction:column;padding:88px 24px 24px;
  box-shadow:var(--sh3);
}
.drawer h4{font-size:12px;color:var(--weak);font-weight:600;margin-bottom:12px;letter-spacing:1px}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{
  display:flex;align-items:center;height:52px;font-size:16px;
  color:var(--muted);border-bottom:1px solid var(--line);
}
.drawer nav a.active{color:var(--brand);font-weight:600}
.drawer .drawer-foot{margin-top:auto;padding-top:20px}
.drawer .drawer-foot .btn{width:100%}
.nav-toggle-input:checked ~ .mask{opacity:1;pointer-events:auto}
.nav-toggle-input:checked ~ .drawer{transform:translateX(0)}
.nav-toggle-input:focus-visible ~ .head-inner .menu-btn{outline:2px solid var(--brand);outline-offset:2px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:142px 0 96px;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.88) 52%,rgba(247,250,252,.97) 100%);
}
.hero-inner{position:relative;max-width:820px}
.hero h1{
  font-size:42px;line-height:1.25;font-weight:700;margin-top:18px;
}
.hero .lead{
  margin-top:18px;font-size:17px;line-height:1.85;color:var(--muted);max-width:700px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-note{
  margin-top:22px;font-size:13px;color:var(--weak);
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.dot-sep{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block}

/* ============ 非对称卡片 ============ */
.grid-asym{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--soft)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease-out}
.card:hover .card-media img{transform:scale(1.02)}
.card-body{padding:26px}
.card-body h3{margin-bottom:10px}
.card-body p{color:var(--muted);font-size:15px;line-height:1.8}
.card-foot{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:18px;font-size:13px;color:var(--weak);
}
.tag{
  display:inline-flex;align-items:center;height:25px;padding:0 11px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);font-size:12.5px;font-weight:600;
}
.card-lg{grid-row:1 / span 2;display:flex;flex-direction:column}
.card-lg .card-media{aspect-ratio:16/10}
.card-lg .card-body{padding:30px;display:flex;flex-direction:column;flex:1}
.card-lg .card-body p{font-size:15.5px}
.card-lg .card-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.card-sm{display:grid;grid-template-columns:128px 1fr;align-items:stretch}
.card-sm .card-media{aspect-ratio:auto;height:100%;min-height:132px}
.card-sm .card-body{padding:20px 22px}
.card-sm .card-body h3{font-size:18px}
.card-sm .card-body p{font-size:14px;margin-top:8px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
}
.text-link::after{content:"";width:14px;height:1px;background:var(--brand);transition:width var(--t)}
.text-link:hover::after{width:22px}

/* ============ 数据指标 ============ */
.stats{display:grid;grid-template-columns:repeat(3,1fr)}
.stat{padding:6px 32px;border-left:1px solid var(--line)}
.stat:first-child{border-left:none;padding-left:0}
.stat .num{
  font-size:38px;font-weight:700;line-height:1.15;
  font-variant-numeric:tabular-nums;
}
.stat .num.c-brand{color:var(--brand)}
.stat .num.c-accent{color:var(--accent)}
.stat .num.c-teal{color:var(--accent-2)}
.stat .lbl{margin-top:10px;font-size:14px;color:var(--muted)}
.stat .sub{margin-top:4px;font-size:13px;color:var(--weak)}

/* ============ 流程长条 ============ */
.steps{display:grid;gap:16px}
.step{
  display:grid;grid-template-columns:56px 1fr auto;gap:18px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 26px;box-shadow:var(--sh1);
  transition:border-color var(--t),box-shadow var(--t),transform var(--t);
}
.step:hover{border-color:#CFE3F3;box-shadow:var(--sh2);transform:translateY(-2px)}
.step-num{
  font-size:20px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;margin-bottom:4px}
.step p{font-size:14.5px;color:var(--muted)}
.step .step-meta{font-size:13px;color:var(--weak);white-space:nowrap}

/* ============ 隐私说明 ============ */
.privacy{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-panel);
  padding:36px;box-shadow:var(--sh1);
  display:grid;grid-template-columns:56px 1fr auto;gap:22px;align-items:center;
}
.privacy-icon{
  width:52px;height:52px;border-radius:16px;background:var(--brand-light);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
}
.privacy h3{font-size:19px}
.privacy p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.85}
.privacy ul{margin-top:12px;display:grid;gap:8px}
.privacy li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--muted)}
.check{
  flex-shrink:0;width:18px;height:18px;border-radius:50%;
  background:rgba(20,184,166,.12);color:var(--accent-2);
  display:inline-flex;align-items:center;justify-content:center;margin-top:3px;
}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:0 26px;box-shadow:var(--sh1);position:relative;overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand);transform:scaleY(0);transform-origin:top;
  transition:transform var(--t);
}
.faq-item[open]{border-color:#CFE3F3;box-shadow:var(--sh2)}
.faq-item[open]::before{transform:scaleY(1)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:21px 40px 21px 0;
  font-size:16.5px;font-weight:600;color:var(--text);position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand);line-height:1;
}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-body{
  padding:0 0 22px;color:var(--muted);font-size:15px;line-height:1.85;
}

/* ============ CTA 长条 ============ */
.cta-bar{
  background:var(--brand-light);border:1px solid #D6E8F5;border-radius:var(--r-panel);
  padding:36px 40px;display:flex;align-items:center;gap:28px;justify-content:space-between;flex-wrap:wrap;
}
.cta-bar h2{font-size:24px;margin-top:0}
.cta-bar p{margin-top:8px;color:var(--muted);font-size:15px}
.cta-bar .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-note{margin-top:16px;font-size:13px;color:var(--weak);display:flex;align-items:center;gap:8px}

/* ============ 页脚 ============ */
.site-foot{background:var(--soft);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.site-foot h3{font-size:15px;font-weight:600;margin-bottom:16px}
.site-foot ul{display:grid;gap:10px}
.site-foot ul a{font-size:14px;color:var(--muted)}
.site-foot ul a:hover{color:var(--brand)}
.site-foot p{font-size:14px;color:var(--muted);line-height:1.85}
.foot-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:48px;padding:20px 0 24px;
  font-size:13px;color:var(--weak);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 28px}
}
@media (max-width:1023px){
  .site-head{padding:0 20px;top:12px}
  .head-inner{height:58px;padding:0 10px 0 14px}
  .nav-links,.head-cta{display:none}
  .menu-btn{display:flex}
  .section{padding:72px 0}
  .hero{padding:118px 0 72px}
  .hero h1{font-size:34px}
  .grid-asym{grid-template-columns:1fr;gap:20px}
  .card-lg{grid-row:auto}
  .stats{grid-template-columns:1fr 1fr;gap:26px 0}
  .stat:nth-child(3){border-left:none;padding-left:0}
  .stat{padding:6px 24px}
  .privacy{grid-template-columns:56px 1fr;padding:28px}
  .privacy .privacy-btn{grid-column:1 / -1}
  .privacy .privacy-btn .btn{width:100%}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-sm{padding:48px 0}
  .site-head{padding:0 14px}
  .hero{padding:104px 0 56px}
  .hero h1{font-size:28px;line-height:1.3}
  .hero .lead{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  h2{font-size:25px}
  .card-sm{grid-template-columns:1fr}
  .card-sm .card-media{aspect-ratio:16/9;min-height:0}
  .stats{grid-template-columns:1fr 1fr}
  .stat{padding:4px 18px}
  .stat .num{font-size:32px}
  .step{grid-template-columns:44px 1fr;padding:20px}
  .step .step-meta{grid-column:2;margin-top:6px}
  .faq-item{padding:0 20px}
  .faq-item summary{font-size:15.5px;padding-right:34px}
  .cta-bar{padding:26px 22px}
  .cta-bar .cta-actions{width:100%}
  .cta-bar .cta-actions .btn{flex:1 1 100%}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:6px}
}
@media (max-width:420px){
  .stats{grid-template-columns:1fr}
  .stat{border-left:none;padding:0}
}

/* roulang page: category3 */
:root{
  --brand:#0D6EB8;
  --brand-deep:#0A5793;
  --brand-light:#E7F2FA;
  --accent:#FF7A2F;
  --accent-2:#14B8A6;
  --bg:#F7FAFC;
  --card:#FFFFFF;
  --line:#E5EDF4;
  --ink:#16232E;
  --sub:#5B6B7A;
  --weak:#8A9AA8;
  --foot:#F1F6FA;
  --r-card:16px;
  --r-panel:24px;
  --r-btn:12px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(13,58,102,.06);
  --sh2:0 8px 24px rgba(13,58,102,.08);
  --sh3:0 20px 48px rgba(13,58,102,.14);
  --sh-accent:0 10px 22px rgba(255,122,47,.26);
  --head:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}

/* ---------- 悬浮胶囊导航 ---------- */
.site-head{
  position:fixed;top:0;left:0;right:0;z-index:80;
  padding:14px 32px;
  transition:padding .2s ease-out;
}
.head-inner{
  max-width:1200px;margin:0 auto;
  height:var(--head);
  display:flex;align-items:center;gap:20px;
  padding:0 16px 0 20px;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh2);
  transition:height .2s ease-out,box-shadow .2s ease-out;
}
.site-head.is-shrink{padding-top:8px;padding-bottom:8px;}
.site-head.is-shrink .head-inner{height:56px;box-shadow:var(--sh3);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--brand-deep);}
.brand-mark{
  width:34px;height:34px;border-radius:11px;position:relative;flex:0 0 auto;
  background:linear-gradient(135deg,#0D6EB8,#3FA0DE);
  box-shadow:0 6px 14px rgba(13,110,184,.28);
}
.brand-mark::after{
  content:"";position:absolute;top:8px;right:8px;width:11px;height:11px;
  border-radius:3px;background:#fff;opacity:.94;
}
.brand-mark::before{
  content:"";position:absolute;bottom:8px;left:8px;width:11px;height:11px;
  border-radius:50%;background:rgba(255,255,255,.6);
}
.brand-text{display:flex;flex-direction:column;line-height:1.08;}
.brand-text strong{font-size:15px;font-weight:700;color:var(--ink);}
.brand-text em{font-style:normal;font-size:11px;color:var(--sub);letter-spacing:.6px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap;}
.nav-links a{
  display:inline-block;
  padding:9px 14px;
  font-size:14px;color:var(--sub);
  border-radius:var(--r-pill);
  white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out;
}
.nav-links a:hover{background:#F2F7FB;color:var(--brand-deep);}
.nav-links a.active{background:var(--brand-light);color:var(--brand);font-weight:600;}
.head-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.burger{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;
  border-radius:12px;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease-out;}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-accent);}
.btn-primary:hover{background:#F06A1C;color:#fff;}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-deep);border-color:var(--brand-deep);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
  border-bottom:1px solid transparent;
  transition:border-color .18s ease-out,color .18s ease-out;
}
.link-more:hover{border-bottom-color:var(--brand);color:var(--brand-deep);}

/* ---------- 通用徽章 / 板块头 ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);
  font-size:12.5px;font-weight:600;letter-spacing:.2px;
}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--sub);}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{font-size:30px;line-height:1.3;}
.sec-head p{margin-top:14px;font-size:16px;color:var(--sub);}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}

/* ---------- Hero ---------- */
.hero-cat{padding:calc(var(--head) + 76px) 0 84px;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.hero-copy h1{
  margin-top:18px;
  font-size:38px;line-height:1.3;font-weight:700;
}
.hero-copy .lead{margin-top:18px;font-size:16.5px;color:var(--sub);max-width:560px;}
.hero-copy .lead + .lead{margin-top:12px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:30px;
  font-size:13.5px;color:var(--sub);
}
.hero-facts span{display:inline-flex;align-items:center;gap:8px;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent-2);flex:0 0 auto;}
.dot-blue{background:var(--brand);}
.dot-orange{background:var(--accent);}

.intro-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-panel);
  box-shadow:var(--sh2);padding:24px;
}
.intro-card .shot{
  position:relative;width:100%;aspect-ratio:16/9;border-radius:var(--r-card);overflow:hidden;
  background:#DCEAF5;
}
.intro-card .shot img{width:100%;height:100%;object-fit:cover;}
.intro-card .shot .chip{
  position:absolute;left:14px;bottom:14px;
  background:rgba(255,255,255,.94);border-radius:var(--r-pill);
  padding:7px 14px;font-size:12.5px;font-weight:600;color:var(--brand);
  box-shadow:var(--sh1);
}
.intro-card h2{font-size:19px;margin-top:20px;}
.intro-card ul{margin-top:14px;display:grid;gap:12px;}
.intro-card li{display:flex;gap:10px;font-size:14.5px;color:var(--sub);line-height:1.7;}
.tick{
  width:20px;height:20px;flex:0 0 auto;margin-top:3px;border-radius:50%;
  background:rgba(20,184,166,.12);position:relative;
}
.tick::after{
  content:"";position:absolute;left:6px;top:5px;width:8px;height:4px;
  border-left:2px solid var(--accent-2);border-bottom:2px solid var(--accent-2);
  transform:rotate(-45deg);
}

/* ---------- 折叠信息条 ---------- */
.fold-list{display:grid;gap:14px;}
.fold-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);overflow:hidden;
  transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.fold-item:hover{box-shadow:var(--sh2);}
.fold-item[open]{box-shadow:var(--sh2);border-color:#D5E6F3;}
.fold-item summary{
  display:flex;align-items:center;gap:18px;
  padding:22px 24px;cursor:pointer;list-style:none;
  border-left:3px solid transparent;
  transition:border-color .2s ease-out,background .2s ease-out;
}
.fold-item summary::-webkit-details-marker{display:none;}
.fold-item[open] summary{border-left-color:var(--brand);background:#FBFDFF;}
.fold-num{
  font-size:13px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
  background:var(--brand-light);border-radius:8px;padding:4px 9px;flex:0 0 auto;
}
.fold-title{font-size:17px;font-weight:600;flex:1;}
.fold-icon{
  width:22px;height:22px;position:relative;flex:0 0 auto;border-radius:50%;
  background:var(--brand-light);transition:transform .2s ease-out;
}
.fold-icon::before,.fold-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.fold-icon::before{left:5px;top:10px;width:12px;height:2px;}
.fold-icon::after{left:10px;top:5px;width:2px;height:12px;transition:opacity .2s ease-out;}
.fold-item[open] .fold-icon{transform:rotate(180deg);}
.fold-item[open] .fold-icon::after{opacity:0;}
.fold-body{padding:0 24px 24px 66px;color:var(--sub);font-size:15px;line-height:1.85;}
.fold-body p + p{margin-top:10px;}
.fold-body ul{margin-top:12px;display:grid;gap:8px;}
.fold-body li{position:relative;padding-left:16px;}
.fold-body li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--brand);opacity:.5;
}

/* ---------- 卡片区 ---------- */
.cards-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh2);}
.card .thumb{
  position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;background:#DCEAF5;
}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.card:hover .thumb img{transform:scale(1.02);}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:18px;line-height:1.45;}
.card-body p{margin-top:10px;font-size:14.5px;color:var(--sub);line-height:1.75;flex:1;}
.card-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--weak);font-variant-numeric:tabular-nums;
}
.card-meta .sep{width:4px;height:4px;border-radius:50%;background:#CFDDE8;}
.card-meta .badge{margin-left:auto;height:24px;font-size:12px;padding:0 10px;}

/* ---------- 自检长条 ---------- */
.check-wrap{background:var(--brand-light);border-radius:var(--r-panel);padding:12px;}
.check-row{
  display:grid;grid-template-columns:64px 1fr 168px;gap:20px;align-items:center;
  background:#fff;border-radius:var(--r-card);padding:20px 24px;margin-bottom:12px;
  border:1px solid #fff;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.check-row:last-child{margin-bottom:0;}
.check-row:hover{border-color:#CFE3F2;box-shadow:var(--sh1);}
.check-row .idx{
  font-size:22px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
}
.check-row h3{font-size:16.5px;font-weight:600;}
.check-row p{font-size:14px;color:var(--sub);margin-top:6px;}
.check-tag{
  justify-self:end;font-size:13px;font-weight:600;color:var(--accent-2);
  background:rgba(20,184,166,.1);border-radius:var(--r-pill);padding:6px 14px;
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);overflow:hidden;
}
.faq-item summary{
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;cursor:pointer;list-style:none;
  border-left:3px solid transparent;font-size:16.5px;font-weight:600;
  transition:border-color .2s ease-out,background .2s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item[open] summary{border-left-color:var(--brand);background:#FBFDFF;color:var(--brand-deep);}
.faq-item summary .fold-icon{background:var(--brand-light);}
.faq-item[open] summary .fold-icon{transform:rotate(180deg);}
.faq-item[open] summary .fold-icon::after{opacity:0;}
.faq-body{padding:0 24px 22px 24px;color:var(--sub);font-size:15px;line-height:1.8;}

/* ---------- CTA 长条 ---------- */
.cta-bar{
  background:var(--brand-light);border:1px solid #D5E6F3;border-radius:var(--r-panel);
  padding:40px 44px;display:flex;align-items:center;gap:36px;flex-wrap:wrap;
}
.cta-bar .cta-text{flex:1 1 380px;}
.cta-bar h2{font-size:26px;line-height:1.35;}
.cta-bar p{margin-top:12px;font-size:15px;color:var(--sub);max-width:620px;}
.cta-bar .cta-act{display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
.privacy-line{
  display:flex;align-items:flex-start;gap:8px;
  font-size:13px;color:var(--weak);line-height:1.7;max-width:340px;
}
.shield{
  width:16px;height:16px;flex:0 0 auto;margin-top:3px;position:relative;
  background:var(--accent-2);border-radius:3px 3px 8px 8px;opacity:.9;
}
.shield::after{
  content:"";position:absolute;left:5px;top:4px;width:6px;height:3px;
  border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg);
}

/* ---------- 弹层 ---------- */
.modal{
  position:fixed;inset:0;z-index:120;display:none;
  background:rgba(16,35,46,.45);
  padding:24px;
}
.modal.is-open{display:flex;align-items:center;justify-content:center;}
.modal-panel{
  width:480px;max-width:100%;background:#fff;border-radius:var(--r-panel);
  box-shadow:var(--sh3);padding:28px;max-height:90vh;overflow:auto;
}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;}
.modal-head h2{font-size:21px;}
.modal-head p{margin-top:8px;font-size:13.5px;color:var(--sub);}
.modal-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--sub);font-size:18px;line-height:1;display:flex;align-items:center;justify-content:center;
  transition:background .18s ease-out,color .18s ease-out;
}
.modal-close:hover{background:#F2F7FB;color:var(--ink);}
.form-grid{display:grid;gap:16px;margin-top:22px;}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:8px;}
.req{color:var(--accent);margin-left:4px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;height:48px;font-size:15px;color:var(--ink);background:#fff;
  font-family:inherit;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(13,110,184,.14);
}
.field.is-error input,.field.is-error select{border-color:#E0453C;}
.field .err{display:none;margin-top:8px;font-size:12.5px;color:#E0453C;}
.field.is-error .err{display:block;}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--sub);line-height:1.7;}
.check-line input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex:0 0 auto;}
.form-tip{font-size:13px;color:var(--weak);line-height:1.7;}
.form-success{
  display:none;margin-top:18px;padding:14px 16px;border-radius:var(--r-btn);
  background:rgba(20,184,166,.1);color:#0E8578;font-size:14px;font-weight:600;
}
.form-success.is-on{display:block;}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--foot);border-top:1px solid var(--line);padding:64px 0 0;margin-top:24px;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.site-foot h3{font-size:15px;margin-bottom:16px;color:var(--ink);}
.site-foot p{font-size:13.5px;color:var(--sub);line-height:1.85;}
.site-foot ul{display:grid;gap:10px;}
.site-foot ul a{font-size:13.5px;color:var(--sub);}
.site-foot ul a:hover{color:var(--brand);}
.foot-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid #E1EBF3;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--weak);
}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;z-index:140;
  background:#fff;box-shadow:var(--sh3);
  transform:translateX(102%);transition:transform .22s ease-out;
  display:flex;flex-direction:column;padding:24px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer nav{display:grid;gap:2px;}
.drawer nav a{
  display:flex;align-items:center;height:52px;padding:0 14px;border-radius:var(--r-btn);
  font-size:15px;color:var(--sub);
}
.drawer nav a.active{background:var(--brand-light);color:var(--brand);font-weight:600;}
.drawer nav a:hover{background:#F2F7FB;color:var(--brand-deep);}
.drawer .drawer-foot{margin-top:auto;}
.scrim{
  position:fixed;inset:0;background:rgba(16,35,46,.35);z-index:130;display:none;
}
.scrim.is-open{display:block;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .cards-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  .site-head{padding:12px 24px;}
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .nav-links{display:none;}
  .burger{display:flex;}
  .head-right .btn{display:none;}
  .hero-cat{padding:calc(var(--head) + 66px) 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-copy h1{font-size:34px;}
  .cards-grid{grid-template-columns:repeat(2,1fr);}
  .check-row{grid-template-columns:48px 1fr;grid-template-rows:auto auto;}
  .check-tag{grid-column:2;justify-self:start;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-bar{padding:32px;}
}
@media (max-width:767px){
  .site-head{padding:10px 16px;}
  .container{padding:0 20px;}
  .section,.section-tight{padding:56px 0;}
  .hero-cat{padding:calc(var(--head) + 56px) 0 52px;}
  .hero-copy h1{font-size:29px;line-height:1.32;}
  .hero-copy .lead{font-size:15.5px;}
  .sec-head h2{font-size:24px;}
  .sec-head{margin-bottom:32px;}
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:14px;}
  .cards-grid{grid-template-columns:1fr;gap:18px;}
  .fold-item summary{padding:18px 18px;gap:12px;}
  .fold-title{font-size:15.5px;}
  .fold-body{padding:0 18px 20px 18px;}
  .check-row{padding:18px;}
  .check-row .idx{font-size:19px;}
  .cta-bar{padding:26px 22px;gap:22px;}
  .cta-bar h2{font-size:22px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .modal{padding:0;align-items:flex-end;}
  .modal.is-open{align-items:flex-end;}
  .modal-panel{width:100%;border-radius:24px 24px 0 0;padding:24px 20px;}
  .hero-actions .btn{width:100%;}
}
@media (max-width:520px){
  .brand-text em{display:none;}
  .brand-text strong{font-size:14px;}
  .card-body h3{font-size:16.5px;}
}