/* roulang page: index */
:root{
  --c-primary:#16528C;
  --c-primary-d:#0E3A66;
  --c-primary-l:#E8F1FA;
  --c-teal:#0E9E8E;
  --c-teal-l:#E4F5F2;
  --c-teal-d:#0A6F63;
  --c-accent:#E4762F;
  --c-bg:#F5F8FB;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF3F9;
  --c-line:#DCE6F0;
  --c-line-soft:#EBF1F7;
  --c-ink:#14202B;
  --c-ink-2:#46586A;
  --c-ink-3:#7C8C9C;
  --c-ok:#17916F;
  --c-warn:#C98410;
  --c-err:#C34A3A;
  --r-card:14px;
  --r-sm:12px;
  --r-btn:10px;
  --r-hero:18px;
  --sh-1:0 1px 2px rgba(16,42,67,.05),0 8px 24px -12px rgba(16,42,67,.14);
  --sh-2:0 2px 4px rgba(16,42,67,.06),0 18px 40px -16px rgba(16,42,67,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap:24px;
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(22,82,140,.28);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0}
.section--tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:var(--gap)}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--c-teal-d);background:var(--c-teal-l);border-radius:999px;padding:4px 12px;margin-bottom:14px}
h1{font-size:clamp(30px,4vw,50px);line-height:1.25;font-weight:700;letter-spacing:-.4px;color:var(--c-ink)}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:700;color:var(--c-ink);letter-spacing:-.2px}
h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--c-ink)}
.lead{font-size:17px;line-height:1.9;color:var(--c-ink-2);max-width:640px}
.muted{font-size:14px;color:var(--c-ink-3)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:16px;font-weight:600;line-height:1;border-radius:var(--r-btn);padding:0 26px;min-height:48px;border:1px solid transparent;cursor:pointer;transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);text-decoration:none;white-space:nowrap}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);filter:brightness(.94)}
.btn-outline{background:#fff;border-color:var(--c-line);color:var(--c-primary)}
.btn-outline:hover{border-color:var(--c-primary);background:var(--c-surface-2);color:var(--c-primary)}
.btn-outline:active{transform:translateY(0);background:#fff}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);padding:0;min-height:auto;background:none;border:0}
.btn-link i{transition:transform .22s var(--ease)}
.btn-link:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px}
.btn-link:hover i{transform:translateX(3px)}
.btn:disabled,.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.98);border-bottom:1px solid var(--c-line-soft);transition:box-shadow .22s var(--ease),background-color .22s var(--ease)}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(16,42,67,.06);background:rgba(255,255,255,.92);backdrop-filter:saturate(160%) blur(6px)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-ink);flex-shrink:0}
.brand:hover{text-decoration:none;color:var(--c-ink)}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;flex-shrink:0}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{position:relative;font-size:15.5px;font-weight:500;color:var(--c-ink-2);padding:24px 0;display:inline-flex;align-items:center}
.nav-link::after{content:"";position:absolute;left:50%;bottom:16px;width:16px;height:2px;border-radius:2px;background:var(--c-primary);transform:translateX(-50%) scaleX(0);transition:transform .22s var(--ease)}
.nav-link:hover{color:var(--c-primary);text-decoration:none}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-link.active::after{transform:translateX(-50%) scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.btn-nav{min-height:44px;padding:0 22px;font-size:15.5px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;color:var(--c-ink);align-items:center;justify-content:center;cursor:pointer;transition:border-color .2s var(--ease),background-color .2s var(--ease)}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-surface-2)}
.mobile-drawer{display:none;background:#fff;border-top:1px solid var(--c-line-soft);padding:8px 0 18px}
.mobile-drawer.is-open{display:block;animation:drawerUp .2s var(--ease)}
@keyframes drawerUp{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.mobile-drawer a{display:flex;align-items:center;justify-content:space-between;min-height:52px;padding:0 4px;font-size:17px;color:var(--c-ink-2);border-bottom:1px solid var(--c-line-soft)}
.mobile-drawer a:hover,.mobile-drawer a.active{color:var(--c-primary);text-decoration:none}
.mobile-drawer .drawer-cta{margin-top:16px;border:0}

/* Hero */
.hero{padding:64px 0 88px;background:linear-gradient(180deg,#F5F8FB 0%,#FFFFFF 72%)}
.hero-grid{display:grid;grid-template-columns:5.5fr 6.5fr;gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-primary);background:var(--c-primary-l);border-radius:999px;padding:7px 14px;margin-bottom:22px}
.hero h1{margin-bottom:20px}
.hero-sub{font-size:17px;line-height:1.9;color:var(--c-ink-2);max-width:520px;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-trust{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--c-ink-3)}
.hero-trust span{display:inline-flex;align-items:center;gap:6px}
.hero-trust i{color:var(--c-teal);font-size:13px}
.hero-trust .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line);display:inline-block}
.hero-visual{position:relative}
.hero-visual .frame{border-radius:var(--r-hero);overflow:hidden;box-shadow:var(--sh-2);background:var(--c-primary-l);aspect-ratio:16/11}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover}
.hero-float{position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);box-shadow:var(--sh-1);padding:14px 18px;display:flex;align-items:center;gap:12px}
.hero-float .num{font-size:26px;font-weight:700;color:var(--c-teal-d);letter-spacing:-.5px;font-variant-numeric:tabular-nums;line-height:1}
.hero-float .txt{font-size:13px;color:var(--c-ink-3);line-height:1.4}

/* 指标看板 */
.metrics-band{padding:0 0 var(--sec)}
.metrics-inner{background:linear-gradient(160deg,#16528C 0%,#0E3A66 100%);border-radius:var(--r-hero);padding:40px 32px;display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.metric{position:relative;padding:6px 24px}
.metric + .metric::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:1px;background:rgba(255,255,255,.16)}
.metric-num{font-size:clamp(34px,3.6vw,50px);font-weight:700;color:#fff;letter-spacing:-1px;font-variant-numeric:tabular-nums;line-height:1.1;display:inline-block}
.metric-unit{font-size:16px;font-weight:600;color:rgba(255,255,255,.72);margin-left:4px}
.metric-desc{margin-top:8px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.6}

/* 服务矩阵 */
.services-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:var(--gap)}
.svc-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.svc-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C9D9EA}
.svc-card:hover h3{color:var(--c-primary)}
.svc-card h3{transition:color .22s var(--ease);margin-bottom:10px}
.svc-card p{font-size:15px;line-height:1.8;color:var(--c-ink-2);margin-bottom:20px}
.svc-card .btn-link{margin-top:auto}
.svc-ico{width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;background:var(--c-primary-l);color:var(--c-primary);font-size:18px;margin-bottom:18px}
.svc-lg{grid-column:span 3;grid-row:span 2;background:var(--c-primary-l);border-color:#CFE0F2;padding:0;overflow:hidden}
.svc-lg .svc-lg-body{padding:30px 28px 28px;display:flex;flex-direction:column;flex:1}
.svc-lg .svc-lg-img{aspect-ratio:16/10;overflow:hidden;background:#D8E6F4}
.svc-lg .svc-lg-img img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease)}
.svc-lg:hover .svc-lg-img img{transform:scale(1.03)}
.svc-lg h3{font-size:21px}
.svc-md{grid-column:span 3}
.svc-sm{grid-column:span 2}

/* 对比板块 */
.compare-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:12px 32px;box-shadow:var(--sh-1)}
.compare-row{display:grid;grid-template-columns:30% 54% 16%;gap:24px;align-items:center;padding:22px 0;border-bottom:1px solid var(--c-line-soft)}
.compare-row:last-child{border-bottom:0}
.compare-name{font-size:14.5px;font-weight:600;color:var(--c-ink)}
.compare-name span{display:block;font-size:13px;font-weight:400;color:var(--c-ink-3);margin-top:2px}
.bar-group{display:flex;flex-direction:column;gap:8px}
.bar-line{display:flex;align-items:center;gap:12px}
.bar-track{flex:1;height:8px;border-radius:999px;background:#DCE6F0;overflow:hidden}
.bar-fill{height:100%;width:0;border-radius:999px;transition:width 1.1s var(--ease)}
.bar-fill.base{background:#C9D6E3}
.bar-fill.after{background:var(--c-teal)}
.bar-cap{font-size:12.5px;color:var(--c-ink-3);width:52px;flex-shrink:0}
.diff-tag{justify-self:end;font-size:13px;font-weight:600;color:var(--c-teal-d);background:var(--c-teal-l);border-radius:6px;padding:5px 10px;white-space:nowrap}
.compare-foot{margin-top:32px;display:flex;justify-content:flex-start}

/* 资讯列表 */
.news-layout{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.news-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C9D9EA}
.news-card:hover h3{color:var(--c-primary)}
.news-cover{aspect-ratio:16/10;background:var(--c-surface-2);overflow:hidden}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease)}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.news-cat{font-size:12.5px;font-weight:600;color:var(--c-primary);background:var(--c-primary-l);border-radius:999px;padding:4px 10px}
.news-date{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--c-ink-3)}
.news-card h3{font-size:18px;line-height:1.5;margin-bottom:10px;transition:color .22s var(--ease);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card p{font-size:14px;line-height:1.8;color:var(--c-ink-2);margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .btn-link{margin-top:auto}
.news-card--feature{grid-column:span 2;grid-row:span 2}
.news-card--feature h3{font-size:22px;-webkit-line-clamp:3}
.news-card--feature p{-webkit-line-clamp:3}
.news-empty{grid-column:1/-1;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);padding:56px 24px;text-align:center}
.news-empty i{font-size:30px;color:var(--c-ink-3);margin-bottom:14px;display:block}
.news-empty p{font-size:15px;color:var(--c-ink-3);margin-bottom:18px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}

/* FAQ */
.faq .accordion-item{border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1)}
.faq .accordion-header{display:block}
.faq .accordion-button{position:relative;width:100%;text-align:left;font-size:17px;font-weight:600;line-height:1.6;color:var(--c-ink);background:#fff;border:0;padding:18px 56px 18px 24px;min-height:56px;box-shadow:none;border-radius:0;display:flex;align-items:center}
.faq .accordion-button::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);transform:scaleY(0);transform-origin:top;transition:transform .2s var(--ease)}
.faq .accordion-button:not(.collapsed){background:var(--c-surface-2);color:var(--c-primary);box-shadow:none}
.faq .accordion-button:not(.collapsed)::before{transform:scaleY(1)}
.faq .accordion-button:focus{box-shadow:0 0 0 3px rgba(22,82,140,.18);z-index:2}
.faq .accordion-button::after{margin-left:auto;position:absolute;right:22px;top:50%;transform:translateY(-50%);background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;color:var(--c-ink-3);width:auto;height:auto;transition:transform .2s var(--ease)}
.faq .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg);color:var(--c-primary)}
.faq .accordion-body{padding:16px 24px;font-size:15px;line-height:1.9;color:var(--c-ink-2);background:#fff}
.faq .accordion-collapse{border:0}

/* 表单 */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.trust-list li{display:flex;gap:14px;padding:20px 0;border-bottom:1px solid var(--c-line-soft);font-size:15px;line-height:1.7}
.trust-list li:last-child{border-bottom:0}
.trust-list .tick{width:36px;height:36px;border-radius:10px;background:var(--c-primary-l);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;font-size:15px}
.trust-note{margin-top:20px;font-size:13.5px;color:var(--c-ink-3);line-height:1.8}
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-1)}
.form-row{margin-bottom:20px}
.form-row label{display:block;font-size:14px;font-weight:500;color:var(--c-ink);margin-bottom:8px}
.form-control,.form-select{width:100%;height:48px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;padding:0 14px;font-size:15px;color:var(--c-ink);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
textarea.form-control{height:auto;min-height:120px;padding:12px 14px;line-height:1.8;resize:vertical}
.form-control:focus,.form-select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,82,140,.16)}
.form-control.is-invalid,.form-select.is-invalid{border-color:var(--c-err);box-shadow:0 0 0 3px rgba(195,74,58,.12)}
.field-err{display:none;font-size:13px;color:var(--c-err);margin-top:6px}
.field-err.show{display:block}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:8px}
.form-privacy{font-size:12.5px;color:var(--c-ink-3);line-height:1.7;margin-top:16px}
.form-ok{display:none;margin-top:16px;background:var(--c-teal-l);color:var(--c-teal-d);border-radius:var(--r-sm);padding:12px 16px;font-size:14px;font-weight:600}
.form-ok.show{display:block}

/* 页脚 */
.site-footer{background:linear-gradient(160deg,#123F6C 0%,#0E3A66 100%);color:rgba(255,255,255,.75);padding:64px 0 0;margin-top:var(--sec)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);max-width:320px}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-links li{margin-bottom:12px}
.footer-links a{color:rgba(255,255,255,.75);font-size:14.5px}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;margin-bottom:14px;color:rgba(255,255,255,.75);line-height:1.7}
.footer-contact i{color:rgba(255,255,255,.6);margin-top:4px}
.footer-qr{width:96px;height:96px;border-radius:12px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.6);font-size:12px;text-align:center;margin-top:16px;line-height:1.5}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.14);padding:22px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.6)}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:#fff}

/* 响应式 */
@media (max-width:1399px){
  .container{max-width:1140px}
  .hero-grid{gap:44px}
}
@media (max-width:1199px){
  .container{max-width:960px}
  :root{--sec:72px}
  .nav-main{gap:18px}
  .nav-link{font-size:15px}
  .metrics-inner{padding:34px 20px}
  .metric{padding:6px 18px}
}
@media (max-width:991px){
  .container{max-width:100%}
  :root{--sec:64px}
  .nav-main{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions{margin-left:auto}
  .hero{padding:40px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual .frame{aspect-ratio:16/10}
  .hero-float{left:12px;bottom:-18px}
  .metrics-band{padding-bottom:var(--sec)}
  .metrics-inner{grid-template-columns:repeat(2,1fr);gap:18px}
  .metric{padding:14px 16px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-sm)}
  .metric + .metric::before{display:none}
  .services-grid{grid-template-columns:repeat(4,1fr)}
  .svc-lg{grid-column:span 4;grid-row:auto}
  .svc-md{grid-column:span 2}
  .svc-sm{grid-column:span 2}
  .news-layout{grid-template-columns:repeat(2,1fr)}
  .news-card--feature{grid-column:span 2;grid-row:auto}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .compare-wrap{padding:8px 22px}
  .compare-row{grid-template-columns:1fr;gap:14px;align-items:flex-start}
  .diff-tag{justify-self:start}
}
@media (max-width:767px){
  .section-head--row{flex-direction:column;align-items:flex-start;gap:14px}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .svc-lg,.svc-md,.svc-sm{grid-column:span 2}
  .news-layout{grid-template-columns:1fr}
  .news-card--feature{grid-column:span 1}
  .btn{width:100%}
  .hero-cta .btn{width:100%}
  .header-actions .btn-nav{display:none}
  .form-foot .btn{width:100%}
}
@media (max-width:575px){
  :root{--sec:44px}
  .container{padding:0 18px}
  h1{font-size:30px}
  .metrics-inner{padding:22px 16px;grid-template-columns:1fr}
  .brand-text{font-size:15.5px}
  .compare-wrap{padding:6px 16px}
  .footer-grid{grid-template-columns:1fr}
  .hero{padding:28px 0 48px}
  .hero-float{position:static;margin-top:16px;left:auto;bottom:auto}
  .form-card{padding:22px}
}
@media (hover:none){
  .svc-card:hover,.news-card:hover{transform:none}
  .svc-lg:hover .svc-lg-img img,.news-card:hover .news-cover img{transform:none}
}

/* roulang page: article */
:root{
  --c-primary:#16528C;
  --c-primary-d:#0E3A66;
  --c-primary-l:#E8F1FA;
  --c-teal:#0E9E8E;
  --c-teal-l:#E2F4F1;
  --c-accent:#E4762F;
  --c-bg:#F5F8FB;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF3F9;
  --c-line:#DCE6F0;
  --c-line-soft:#EBF1F7;
  --c-ink:#14202B;
  --c-ink-2:#46586A;
  --c-ink-3:#7C8C9C;
  --c-ok:#17916F;
  --c-warn:#C98410;
  --c-err:#C34A3A;
  --sh-1:0 1px 2px rgba(16,42,67,.05), 0 8px 24px -12px rgba(16,42,67,.14);
  --sh-2:0 2px 4px rgba(16,42,67,.06), 0 18px 40px -16px rgba(16,42,67,.22);
  --r-card:14px;
  --r-small:12px;
  --r-btn:10px;
  --r-hero:18px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{color:var(--c-ink);margin:0;font-weight:700;letter-spacing:-.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(22,82,140,.28);outline-offset:2px;border-radius:8px;}
.container{
  width:100%;
  max-width:1140px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){ .container{max-width:1240px;} }
@media (min-width:1200px) and (max-width:1399px){ .container{max-width:1140px;} }
@media (min-width:992px) and (max-width:1199px){ .container{max-width:960px;} }
@media (max-width:991.98px){ .container{max-width:100%;} }
@media (max-width:575.98px){ .container{padding-left:18px;padding-right:18px;} }

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--c-line-soft);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(16,42,67,.06);}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:74px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--c-ink);
  text-decoration:none;
}
.brand:hover{text-decoration:none;color:var(--c-ink);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
}
.nav-main{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--c-ink-2);
  padding:6px 0;
  white-space:nowrap;
  text-decoration:none;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:0;
  width:0;height:2px;
  background:var(--c-primary);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width .22s var(--ease);
}
.nav-link:hover{color:var(--c-primary);text-decoration:none;}
.nav-link:hover::after{width:16px;}
.nav-link.active{color:var(--c-primary);}
.nav-link.active::after{width:16px;}
.header-cta{flex:0 0 auto;}
.btn-primary-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  background:var(--c-primary);
  color:#fff;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  text-decoration:none;
  transition:background .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
}
.btn-primary-cta:hover{
  background:var(--c-primary-d);
  color:#fff;
  text-decoration:none;
  transform:translateY(-1px);
  box-shadow:var(--sh-2);
}
.btn-primary-cta:active{transform:translateY(0);filter:brightness(.94);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-primary);
  align-items:center;justify-content:center;
  cursor:pointer;
}
.mobile-drawer{
  display:none;
  background:#fff;
  border-top:1px solid var(--c-line-soft);
  padding:8px 0 18px;
}
.mobile-drawer.open{display:block;animation:drawerIn .2s var(--ease);}
@keyframes drawerIn{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:translateY(0);}}
.mobile-drawer a{
  display:block;
  min-height:52px;
  line-height:52px;
  padding:0 24px;
  font-size:17px;
  color:var(--c-ink);
  border-bottom:1px solid var(--c-line-soft);
  text-decoration:none;
}
.mobile-drawer a:hover{background:var(--c-surface-2);text-decoration:none;color:var(--c-primary);}
.mobile-drawer a.is-active{color:var(--c-primary);font-weight:600;}
.mobile-drawer .drawer-cta{
  margin:16px 24px 0;
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  border-radius:var(--r-btn);
  background:var(--c-primary);
  color:#fff;
  font-weight:600;
  border-bottom:none;
}
.mobile-drawer .drawer-cta:hover{background:var(--c-primary-d);color:#fff;}

/* ============ 页头横幅 ============ */
.page-banner{
  position:relative;
  min-height:228px;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  background-color:var(--c-primary-d);
  display:flex;
  align-items:flex-end;
  overflow:hidden;
}
.page-banner::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg, rgba(14,58,102,.86) 0%, rgba(14,58,102,.62) 58%, rgba(14,58,102,.42) 100%);
}
.page-banner .container{position:relative;z-index:2;padding-top:44px;padding-bottom:80px;}
.banner-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.24);
  color:#fff;
  font-size:13px;
  letter-spacing:.01em;
}
.banner-label i{color:#7FD8CE;}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13.5px;
  color:rgba(255,255,255,.78);
  margin-bottom:14px;
}
.crumb a{color:rgba(255,255,255,.86);text-decoration:none;}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.crumb .crumb-sep{opacity:.5;}
.crumb .crumb-current{color:rgba(255,255,255,.72);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章标题卡 ============ */
.article-head{
  margin-top:-56px;
  position:relative;
  z-index:5;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-hero);
  box-shadow:var(--sh-1);
  padding:36px 40px 32px;
  margin-bottom:44px;
}
.article-head h1{
  font-size:40px;
  line-height:1.25;
  letter-spacing:-.4px;
  margin-bottom:18px;
  overflow-wrap:anywhere;
}
.meta-row{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 14px;
  font-size:14px;
  color:var(--c-ink-3);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line);display:inline-block;}
.meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-item i{color:var(--c-primary);font-size:13px;}
.badge-cat{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  font-size:13px;
  font-weight:600;
}
.badge-teal{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:var(--c-teal-l);
  color:#0A7367;
  font-size:13px;
  font-weight:600;
}

/* ============ 正文布局 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 280px;
  gap:48px;
  align-items:start;
  padding-bottom:88px;
}
.reading-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:44px 46px 48px;
  overflow-wrap:anywhere;
}
.article-content{font-size:17px;line-height:1.95;color:var(--c-ink-2);}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 1.5em;}
.article-content h2{
  font-size:25px;
  line-height:1.4;
  margin:2em 0 .8em;
  padding-left:14px;
  border-left:4px solid var(--c-primary);
  scroll-margin-top:96px;
}
.article-content h3{
  font-size:19px;
  line-height:1.5;
  margin:1.7em 0 .7em;
  color:var(--c-ink);
  scroll-margin-top:96px;
}
.article-content strong{color:var(--c-ink);}
.article-content blockquote{
  margin:1.6em 0;
  padding:16px 20px;
  background:var(--c-surface-2);
  border-left:4px solid var(--c-primary);
  border-radius:0 var(--r-small) var(--r-small) 0;
  color:var(--c-ink-2);
  font-style:normal;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content ul,
.article-content ol{margin:0 0 1.5em;padding-left:1.4em;}
.article-content li{margin-bottom:10px;padding-left:4px;}
.article-content li::marker{color:var(--c-primary);font-weight:600;}
.article-content img{
  max-width:100%;
  height:auto;
  border-radius:var(--r-small);
  box-shadow:var(--sh-1);
  margin:1.6em auto;
}
.article-content a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;word-break:break-word;}
.article-content a:hover{color:var(--c-primary-d);}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
  background:var(--c-surface);
}
.article-content th,
.article-content td{
  border:1px solid var(--c-line);
  padding:12px 14px;
  text-align:left;
  vertical-align:top;
}
.article-content th{background:var(--c-surface-2);color:var(--c-ink);font-weight:600;}
.article-content hr{border:none;border-top:1px solid var(--c-line-soft);margin:2.2em 0;}

.empty-state{
  text-align:center;
  padding:56px 24px 60px;
}
.empty-state .empty-icon{
  width:64px;height:64px;
  margin:0 auto 20px;
  border-radius:18px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:26px;
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--c-ink-3);margin-bottom:24px;}

/* ============ 侧栏 ============ */
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:20px 20px 22px;
}
.side-card h3{
  font-size:16px;
  margin-bottom:16px;
  display:flex;
  align-items:center;
  gap:8px;
}
.side-card h3 i{color:var(--c-teal);font-size:14px;}
.side-list li + li{margin-top:14px;padding-top:14px;border-top:1px solid var(--c-line-soft);}
.side-item{
  display:flex;
  gap:12px;
  text-decoration:none;
  color:var(--c-ink);
}
.side-item:hover{text-decoration:none;color:var(--c-primary);}
.side-thumb{
  width:72px;height:54px;
  flex:0 0 auto;
  border-radius:10px;
  overflow:hidden;
  background:var(--c-surface-2);
}
.side-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease);}
.side-item:hover .side-thumb img{transform:scale(1.03);}
.side-title{
  font-size:14.5px;
  font-weight:600;
  line-height:1.55;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.side-time{font-size:13px;color:var(--c-ink-3);margin-top:6px;display:flex;align-items:center;gap:6px;}
.side-links li + li{margin-top:12px;}
.side-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:15px;
  color:var(--c-ink-2);
  padding:10px 12px;
  border-radius:10px;
  background:var(--c-surface-2);
  text-decoration:none;
  transition:background .22s var(--ease), color .22s var(--ease);
}
.side-links a:hover{background:var(--c-primary-l);color:var(--c-primary);text-decoration:none;}
.side-links a i{font-size:12px;color:var(--c-primary);}

/* ============ 相关推荐 ============ */
.related-section{padding:0 0 88px;}
.section-head{margin-bottom:32px;}
.section-head h2{font-size:30px;line-height:1.35;margin-bottom:10px;}
.section-head p{font-size:15px;color:var(--c-ink-3);max-width:620px;}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  text-decoration:none;
  color:inherit;
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.rel-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:#C9D9EA;
  text-decoration:none;
  color:inherit;
}
.rel-cover{
  aspect-ratio:4 / 3;
  overflow:hidden;
  background:var(--c-surface-2);
}
.rel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease);}
.rel-card:hover .rel-cover img{transform:scale(1.03);}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body .badge-cat{align-self:flex-start;}
.rel-title{
  font-size:18px;
  font-weight:600;
  line-height:1.5;
  color:var(--c-ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rel-card:hover .rel-title{color:var(--c-primary);}
.rel-time{font-size:13.5px;color:var(--c-ink-3);margin-top:auto;display:flex;align-items:center;gap:7px;}

/* ============ 返回入口 ============ */
.back-row{
  display:flex;
  justify-content:center;
  padding:0 0 88px;
}
.btn-secondary-lite{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--r-btn);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  color:var(--c-primary);
  font-size:15px;
  font-weight:600;
  text-decoration:none;
  transition:border-color .22s var(--ease), background .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
}
.btn-secondary-lite:hover{
  border-color:var(--c-primary);
  background:var(--c-surface-2);
  color:var(--c-primary);
  text-decoration:none;
  transform:translateY(-1px);
  box-shadow:var(--sh-1);
}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--c-primary-l);
  border:1px solid #D3E4F5;
  border-radius:var(--r-hero);
  padding:36px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  margin-bottom:88px;
}
.cta-band h2{font-size:24px;margin-bottom:8px;}
.cta-band p{font-size:15px;color:var(--c-ink-2);max-width:560px;}
.btn-block-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:48px;
  padding:0 28px;
  border-radius:var(--r-btn);
  background:var(--c-primary);
  color:#fff;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  white-space:nowrap;
  text-decoration:none;
  transition:background .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.btn-block-cta:hover{
  background:var(--c-primary-d);
  color:#fff;
  text-decoration:none;
  transform:translateY(-1px);
  box-shadow:var(--sh-2);
}
.btn-block-cta:active{transform:translateY(0);filter:brightness(.94);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-primary-d);
  color:rgba(255,255,255,.75);
  padding:64px 0 0;
  margin-top:auto;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700;}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);max-width:320px;}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-links li + li{margin-top:10px;}
.footer-links a{
  color:rgba(255,255,255,.75);
  font-size:14px;
  text-decoration:none;
  transition:color .2s var(--ease);
}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.8;margin-bottom:12px;}
.footer-contact i{color:#7FD8CE;margin-top:5px;}
.footer-qr{
  width:88px;height:88px;
  border:1px dashed rgba(255,255,255,.32);
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  text-align:center;
  font-size:12px;
  line-height:1.6;
  color:rgba(255,255,255,.55);
  margin-top:8px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:rgba(255,255,255,.62);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-head h1{font-size:36px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:32px;}
  .card-grid{gap:20px;}
}
@media (max-width:991.98px){
  .nav-main,.header-cta{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .article-head{margin-top:-44px;padding:28px 26px 26px;}
  .article-head h1{font-size:30px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:64px;}
  .side-col{position:static;}
  .reading-card{padding:30px 24px 34px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .related-section,.back-row{padding-bottom:64px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px;margin-bottom:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .page-banner .container{padding-bottom:64px;}
}
@media (max-width:767.98px){
  .section-head h2{font-size:24px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .article-content{font-size:16.5px;line-height:1.9;}
  .article-content h2{font-size:21px;}
  .article-content h3{font-size:18px;}
  .page-banner{min-height:200px;}
  .crumb{gap:6px;font-size:13px;}
  .crumb .crumb-current{max-width:220px;}
}
@media (max-width:575.98px){
  .brand-text{font-size:15.5px;}
  .article-head{padding:24px 18px 22px;border-radius:16px;}
  .article-head h1{font-size:26px;}
  .reading-card{padding:24px 18px 28px;}
  .cta-band h2{font-size:20px;}
  .btn-block-cta{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .back-row .btn-secondary-lite{width:100%;justify-content:center;}
}
@media (hover:none){
  .rel-card:hover{transform:none;}
  .btn-primary-cta:hover,.btn-block-cta:hover,.btn-secondary-lite:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --c-primary:#16528C;
  --c-primary-d:#0E3A66;
  --c-primary-l:#E8F1FA;
  --c-teal:#0E9E8E;
  --c-teal-l:#E7F5F2;
  --c-accent:#E4762F;
  --c-bg:#F5F8FB;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF3F9;
  --c-line:#DCE6F0;
  --c-line-soft:#EBF1F7;
  --c-ink:#14202B;
  --c-ink-2:#46586A;
  --c-ink-3:#7C8C9C;
  --c-ok:#17916F;
  --c-warn:#C98410;
  --c-error:#C34A3A;
  --r-card:14px;
  --r-sm:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,42,67,.05), 0 8px 24px -12px rgba(16,42,67,.14);
  --sh-2:0 2px 4px rgba(16,42,67,.06), 0 18px 40px -16px rgba(16,42,67,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;}
p{margin:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px;}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(22,82,140,.28);outline-offset:2px;}
section[id]{scroll-margin-top:92px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  min-height:48px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:16px;
  font-weight:600;
  line-height:1;
  text-decoration:none;
  cursor:pointer;
  transition:background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);filter:brightness(.94);}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-primary);}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-surface-2);color:var(--c-primary-d);}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border-radius:999px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  font-size:13.5px;
  font-weight:600;
  letter-spacing:.01em;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:saturate(160%) blur(8px);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--c-line-soft);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(16,42,67,.06);}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  text-decoration:none;
}
.brand:hover{text-decoration:none;}
.brand-mark{
  display:inline-flex;
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--c-primary);
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--c-ink);
  letter-spacing:-.2px;
  white-space:nowrap;
}
.nav-main{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0 auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:10px 14px;
  font-size:15.5px;
  font-weight:500;
  color:var(--c-ink-2);
  border-radius:8px;
  white-space:nowrap;
  text-decoration:none;
  transition:color .2s var(--ease), background .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transform:translateX(-50%) scaleX(0);
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-l);text-decoration:none;}
.nav-link:hover::after,
.nav-link.active::after{transform:translateX(-50%) scaleX(1);}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-cta{
  flex:0 0 auto;
  min-height:44px;
  padding:11px 22px;
  font-size:15px;
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:10px;
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-ink);
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* ============ 面包屑 ============ */
.breadcrumb-line{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13.5px;
  color:var(--c-ink-3);
  margin-bottom:26px;
}
.breadcrumb-line a{color:var(--c-ink-3);}
.breadcrumb-line a:hover{color:var(--c-primary);}
.breadcrumb-line .sep{opacity:.5;}
.breadcrumb-line .current{color:var(--c-ink-2);}

/* ============ Hero ============ */
.page-hero{
  padding:44px 0 84px;
  background:linear-gradient(180deg,#FFFFFF 0%, var(--c-bg) 100%);
  overflow:hidden;
}
.hero-grid{
  display:grid;
  grid-template-columns:11fr 13fr;
  gap:48px;
  align-items:center;
}
.hero-copy h1{
  font-size:48px;
  line-height:1.25;
  letter-spacing:-.4px;
  margin:20px 0 18px;
}
.hero-lead{
  font-size:17px;
  line-height:1.85;
  color:var(--c-ink-2);
  max-width:33em;
  margin-bottom:28px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:30px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:22px;
  font-size:14.5px;
  color:var(--c-ink-2);
}
.hero-points li{display:flex;align-items:center;gap:8px;}
.hero-points i{color:var(--c-teal);font-size:15px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:18px;
  box-shadow:var(--sh-2);
  background:var(--c-surface-2);
}
.float-card{
  position:absolute;
  left:22px;
  bottom:22px;
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:14px 18px;
  background:#fff;
  border-radius:var(--r-sm);
  box-shadow:var(--sh-1);
}
.float-num{
  font-size:28px;
  font-weight:700;
  color:var(--c-primary);
  letter-spacing:-1px;
  font-variant-numeric:tabular-nums;
}
.float-label{font-size:13px;color:var(--c-ink-3);}

/* ============ 板块 ============ */
.section{padding:88px 0;}
.section-alt{background:#fff;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head h2{
  font-size:32px;
  line-height:1.35;
  margin-bottom:14px;
}
.section-head p{font-size:16px;color:var(--c-ink-2);}

/* ============ 准备资料卡片 ============ */
.prep-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.prep-card{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.prep-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFDFEE;}
.prep-icon{
  width:44px;
  height:44px;
  border-radius:var(--r-sm);
  background:var(--c-primary-l);
  color:var(--c-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  margin-bottom:18px;
}
.prep-card h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:10px;}
.prep-card > p{font-size:15px;line-height:1.85;margin-bottom:16px;}
.prep-list{font-size:14.5px;color:var(--c-ink-2);}
.prep-list li{
  position:relative;
  padding-left:18px;
  margin-bottom:9px;
}
.prep-list li:last-child{margin-bottom:0;}
.prep-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--c-teal);
}

/* ============ 步骤时间线 ============ */
.step-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:26px 30px;
}
.step-card{
  position:relative;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.step-card:nth-child(even){margin-top:32px;}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFDFEE;}
.step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:50%;
  background:var(--c-primary);
  color:#fff;
  font-size:16px;
  font-weight:700;
  letter-spacing:-.5px;
  box-shadow:0 10px 20px -12px rgba(22,82,140,.85);
  margin-bottom:18px;
}
.step-card h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:10px;}
.step-card p{font-size:15px;line-height:1.85;}
.step-media{
  margin-top:18px;
  border-radius:var(--r-sm);
  overflow:hidden;
  background:var(--c-surface-2);
  border:1px solid var(--c-line-soft);
}
.step-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}

/* ============ 提示清单 ============ */
.tip-list{display:flex;flex-direction:column;gap:14px;}
.tip-row{
  display:grid;
  grid-template-columns:300px 1fr;
  gap:28px;
  align-items:start;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  padding:22px 26px;
  transition:border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.tip-row:hover{border-color:#CFDFEE;box-shadow:var(--sh-1);}
.tip-q{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:15.5px;
  font-weight:600;
  color:var(--c-ink);
  line-height:1.6;
}
.tip-q i{color:var(--c-accent);margin-top:5px;font-size:14px;}
.tip-a{font-size:15px;line-height:1.85;color:var(--c-ink-2);}

/* ============ 提交之后 ============ */
.follow-grid{
  display:grid;
  grid-template-columns:1fr 1.05fr;
  gap:48px;
  align-items:center;
}
.follow-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  background:var(--c-surface-2);
}
.follow-copy h2{font-size:32px;line-height:1.35;margin-bottom:14px;}
.follow-copy > p{font-size:16px;margin-bottom:26px;}
.follow-list li{
  display:flex;
  gap:14px;
  padding:18px 0;
  border-top:1px solid var(--c-line-soft);
}
.follow-list li:first-child{border-top:none;padding-top:0;}
.follow-list i{
  flex:0 0 auto;
  width:38px;
  height:38px;
  border-radius:10px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
}
.follow-list h3{font-size:16px;font-weight:600;margin-bottom:4px;}
.follow-list p{font-size:14.5px;line-height:1.8;}

.notice-bar{
  display:flex;
  gap:16px;
  align-items:flex-start;
  background:var(--c-teal-l);
  border:1px solid #C9E8E2;
  border-radius:var(--r-card);
  padding:20px 24px;
  margin-top:32px;
}
.notice-bar i{color:var(--c-teal);font-size:19px;margin-top:5px;flex:0 0 auto;}
.notice-bar p{font-size:14.5px;line-height:1.85;color:#1C4B47;}

/* ============ FAQ ============ */
.faq-accordion .accordion-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  margin-bottom:12px;
  overflow:hidden;
  transition:background .2s var(--ease), border-color .2s var(--ease);
}
.faq-accordion .accordion-item:last-child{margin-bottom:0;}
.faq-accordion .accordion-item:hover{border-color:#CFDFEE;}
.faq-accordion .accordion-button{
  display:flex;
  align-items:center;
  width:100%;
  min-height:56px;
  padding:18px 24px;
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  color:var(--c-ink);
  background:transparent;
  border:none;
  box-shadow:none;
  transition:background .2s var(--ease), color .2s var(--ease), box-shadow .2s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){
  background:var(--c-surface-2);
  color:var(--c-primary);
  box-shadow:inset 3px 0 0 var(--c-primary);
}
.faq-accordion .accordion-button::after{display:none;}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(22,82,140,.18);}
.faq-accordion .accordion-button:not(.collapsed):focus{box-shadow:inset 3px 0 0 var(--c-primary), 0 0 0 3px rgba(22,82,140,.18);}
.faq-icon{
  margin-left:auto;
  padding-left:16px;
  color:var(--c-ink-3);
  font-size:14px;
  transition:transform .2s var(--ease), color .2s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed) .faq-icon{
  transform:rotate(180deg);
  color:var(--c-primary);
}
.faq-accordion .accordion-body{
  padding:16px 24px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--c-ink-2);
  background:var(--c-surface-2);
}

/* ============ 反馈表单 ============ */
.apply-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:start;
}
.apply-info h2{font-size:32px;line-height:1.35;margin-bottom:16px;}
.apply-info > p{font-size:16px;margin-bottom:28px;}
.info-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:16px 0;
  border-top:1px solid var(--c-line-soft);
  font-size:15px;
  color:var(--c-ink-2);
}
.info-list li:first-child{border-top:none;padding-top:0;}
.info-list i{color:var(--c-teal);margin-top:5px;font-size:15px;flex:0 0 auto;}
.info-note{
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid var(--c-line-soft);
  font-size:13.5px;
  color:var(--c-ink-3);
  line-height:1.85;
}
.apply-card{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:32px;
}
.field{margin-bottom:20px;}
.field label{
  display:block;
  font-size:14px;
  font-weight:500;
  color:var(--c-ink);
  margin-bottom:8px;
}
.field .form-control,
.field .form-select{
  width:100%;
  height:48px;
  padding:0 14px;
  font-size:15px;
  color:var(--c-ink);
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  box-shadow:none;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field textarea.form-control{
  height:auto;
  min-height:124px;
  padding:12px 14px;
  line-height:1.8;
  resize:vertical;
}
.field .form-control:focus,
.field .form-select:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(22,82,140,.12);
  outline:none;
}
.field.is-invalid .form-control,
.field.is-invalid .form-select{border-color:var(--c-error);}
.field.is-invalid .form-control:focus,
.field.is-invalid .form-select:focus{box-shadow:0 0 0 3px rgba(195,74,58,.14);}
.err-msg{display:none;margin-top:6px;font-size:13px;color:var(--c-error);}
.field.is-invalid .err-msg{display:block;}
.form-note{margin-top:14px;font-size:12.5px;color:var(--c-ink-3);line-height:1.7;}
.form-success{
  display:none;
  margin-top:18px;
  padding:14px 18px;
  border-radius:var(--r-sm);
  background:var(--c-teal-l);
  border:1px solid #C9E8E2;
  color:#1C4B47;
  font-size:14.5px;
}
.form-success.is-visible{display:block;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-primary-d);
  color:rgba(255,255,255,.75);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;font-size:17px;}
.footer-about{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.72);
  max-width:32em;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
}
.footer-links li{margin-bottom:12px;}
.footer-links a{
  color:rgba(255,255,255,.75);
  font-size:14.5px;
  text-decoration:none;
}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,.72);
  margin-bottom:12px;
}
.footer-contact i{margin-top:5px;color:var(--c-teal);flex:0 0 auto;}
.footer-qr{
  margin-top:16px;
  width:96px;
  height:96px;
  border-radius:var(--r-sm);
  border:1px dashed rgba(255,255,255,.28);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12px;
  line-height:1.5;
  color:rgba(255,255,255,.6);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13.5px;
  color:rgba(255,255,255,.62);
}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .container{max-width:1140px;}
}
@media (max-width:1199px){
  .container{max-width:960px;}
  .hero-copy h1{font-size:44px;}
  .hero-grid{gap:36px;}
  .section-head h2,.follow-copy h2,.apply-info h2{font-size:30px;}
}
@media (max-width:991px){
  .container{max-width:100%;padding-left:24px;padding-right:24px;}
  .nav-main{
    position:fixed;
    top:72px;
    left:0;
    right:0;
    margin:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 16px 20px;
    background:#fff;
    border-bottom:1px solid var(--c-line);
    box-shadow:var(--sh-2);
    max-height:calc(100vh - 72px);
    overflow-y:auto;
    transform:translateY(-12px);
    opacity:0;
    pointer-events:none;
    transition:transform .2s var(--ease), opacity .2s var(--ease);
    z-index:1029;
  }
  .nav-main.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .nav-link{
    padding:16px 8px;
    min-height:52px;
    font-size:17px;
    border-radius:0;
    border-bottom:1px solid var(--c-line-soft);
  }
  .nav-link::after{display:none;}
  .nav-link:hover{background:var(--c-surface-2);}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav-cta{margin-left:0;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-visual{order:2;}
  .page-hero{padding:32px 0 64px;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:34px;}
  .prep-grid{grid-template-columns:repeat(2,1fr);}
  .step-grid{grid-template-columns:1fr;gap:20px;}
  .step-card:nth-child(even){margin-top:0;}
  .tip-row{grid-template-columns:1fr;gap:8px;padding:20px 22px;}
  .follow-grid{grid-template-columns:1fr;gap:34px;}
  .follow-media{order:2;}
  .apply-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .header-inner{height:64px;gap:12px;}
  .nav-main{top:64px;}
  .brand-text{font-size:15.5px;}
  .nav-cta{padding:10px 16px;font-size:14px;min-height:42px;}
  .page-hero{padding:26px 0 52px;}
  .hero-copy h1{font-size:34px;margin:16px 0 14px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .hero-points{gap:14px;font-size:13.5px;}
  .prep-grid{grid-template-columns:1fr;}
  .prep-card,.step-card,.apply-card{padding:22px;}
  .section{padding:56px 0;}
  .section-head h2,.follow-copy h2,.apply-info h2{font-size:26px;}
  .faq-accordion .accordion-button{font-size:16px;padding:16px 18px;}
  .faq-accordion .accordion-body{padding:14px 18px 18px;}
  .float-card{left:14px;bottom:14px;padding:12px 14px;}
  .float-num{font-size:24px;}
}
@media (max-width:575px){
  .container{padding-left:18px;padding-right:18px;}
  .brand-text{font-size:14.5px;}
  .hero-copy h1{font-size:30px;}
  .section{padding:44px 0;}
  .section-head h2,.follow-copy h2,.apply-info h2{font-size:24px;}
  .footer-grid{padding-bottom:36px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: category3 */
:root{
  --c-primary:#16528C;
  --c-primary-d:#0E3A66;
  --c-primary-l:#E8F1FA;
  --c-teal:#0E9E8E;
  --c-teal-l:#E4F5F2;
  --c-accent:#E4762F;
  --c-bg:#F5F8FB;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF3F9;
  --c-line:#DCE6F0;
  --c-line-soft:#EBF1F7;
  --c-ink:#14202B;
  --c-ink-2:#46586A;
  --c-ink-3:#7C8C9C;
  --c-ok:#17916F;
  --c-warn:#C98410;
  --c-err:#C34A3A;
  --r-card:14px;
  --r-small:12px;
  --r-btn:10px;
  --r-hero:18px;
  --sh-1:0 1px 2px rgba(16,42,67,.05), 0 8px 24px -12px rgba(16,42,67,.14);
  --sh-2:0 2px 4px rgba(16,42,67,.06), 0 18px 40px -16px rgba(16,42,67,.22);
  --sp-section:88px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  letter-spacing:0;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{color:var(--c-ink);margin:0;font-weight:700;letter-spacing:0;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(22,82,140,.28);outline-offset:2px;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}
@media (max-width:1399px){.container{max-width:1140px;}}
@media (max-width:1199px){.container{max-width:960px;}}
@media (max-width:991px){.container{max-width:100%;padding:0 24px;}}
@media (max-width:575px){.container{padding:0 18px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:none;
  border-radius:var(--r-btn);
  font-size:16px;
  font-weight:600;
  padding:14px 28px;
  min-height:48px;
  cursor:pointer;
  transition:background-color .22s var(--ease), color .22s var(--ease), box-shadow .22s var(--ease), transform .22s var(--ease), border-color .22s var(--ease);
  text-align:center;
  line-height:1.2;
}
.btn:hover{text-decoration:none;}
.btn-primary{
  background:var(--c-primary);
  color:#fff;
  box-shadow:var(--sh-1);
}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);filter:brightness(.94);}
.btn-outline{
  background:var(--c-surface);
  color:var(--c-primary);
  border:1px solid var(--c-line);
}
.btn-outline:hover{background:var(--c-surface-2);border-color:var(--c-primary);color:var(--c-primary-d);}
.btn-outline:active{background:var(--c-primary-l);}
.btn-sm{padding:10px 20px;min-height:44px;font-size:15px;}
.btn:disabled,.btn[disabled]{background:var(--c-surface-2);color:var(--c-ink-3);border:1px solid var(--c-line);cursor:not-allowed;box-shadow:none;transform:none;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(245,248,251,.94);
  backdrop-filter:saturate(150%) blur(6px);
  border-bottom:1px solid var(--c-line-soft);
  transition:box-shadow .22s var(--ease), background-color .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  box-shadow:0 1px 2px rgba(16,42,67,.06);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:32px;
  min-height:74px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand:hover{text-decoration:none;}
.brand-mark{display:inline-flex;}
.brand-text{
  font-size:19px;
  font-weight:700;
  color:var(--c-ink);
  letter-spacing:-.2px;
  white-space:nowrap;
}
.nav-main{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:15.5px;
  font-weight:500;
  color:var(--c-ink-2);
  padding:8px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:0;
  height:2px;
  background:var(--c-primary);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width .22s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--c-primary);text-decoration:none;}
.nav-link:hover::after{width:16px;}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{width:16px;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn-nav{
  min-height:44px;
  padding:11px 22px;
  font-size:15px;
  border-radius:10px;
  background:var(--c-primary);
  color:#fff;
  box-shadow:var(--sh-1);
}
.btn-nav:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);text-decoration:none;}
.nav-toggle{
  display:none;
  width:46px;
  height:46px;
  border-radius:10px;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  color:var(--c-primary);
  font-size:18px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover{background:var(--c-surface-2);}
.mobile-drawer{
  display:none;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
  max-height:0;
  transition:max-height .22s var(--ease);
}
.mobile-drawer.open{max-height:520px;}
.mobile-drawer .drawer-inner{padding:12px 24px 24px;}
.mobile-drawer .nav-link{
  display:block;
  line-height:52px;
  font-size:17px;
  border-bottom:1px solid var(--c-line-soft);
}
.mobile-drawer .nav-link::after{display:none;}
.mobile-drawer .nav-link.active{padding-left:14px;border-left:3px solid var(--c-primary);}
.mobile-drawer .btn{width:100%;margin-top:18px;}

/* ---------- 页面头部 ---------- */
.page-hero{
  position:relative;
  padding:48px 0 72px;
  background:linear-gradient(180deg,#F9FBFD 0%,var(--c-bg) 100%);
  border-bottom:1px solid var(--c-line-soft);
}
.breadcrumb-custom{
  font-size:13.5px;
  color:var(--c-ink-3);
  margin-bottom:26px;
}
.breadcrumb-custom a{color:var(--c-ink-3);}
.breadcrumb-custom a:hover{color:var(--c-primary);text-decoration:none;}
.breadcrumb-custom .sep{margin:0 8px;opacity:.6;}
.breadcrumb-custom .current{color:var(--c-ink-2);}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  font-size:13.5px;
  font-weight:600;
  padding:7px 16px;
  border-radius:999px;
  margin-bottom:20px;
}
.hero-title{
  font-size:46px;
  line-height:1.25;
  letter-spacing:-.4px;
  margin-bottom:20px;
}
.hero-lead{
  font-size:17px;
  line-height:1.9;
  color:var(--c-ink-2);
  max-width:38em;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  font-size:14px;
  color:var(--c-ink-3);
}
.hero-points .pt{display:inline-flex;align-items:center;gap:8px;}
.hero-points .pt i{color:var(--c-teal);font-size:13px;}
.hero-points .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line);}
.hero-media{
  position:relative;
  border-radius:var(--r-hero);
  overflow:hidden;
  box-shadow:var(--sh-2);
  aspect-ratio:16/11;
  background:var(--c-primary-l);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;
  left:22px;
  bottom:22px;
  background:rgba(255,255,255,.96);
  border-radius:var(--r-small);
  padding:14px 20px;
  box-shadow:var(--sh-1);
  display:flex;
  align-items:baseline;
  gap:10px;
}
.hero-float .num{
  font-size:26px;
  font-weight:700;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.5px;
}
.hero-float .lbl{font-size:13px;color:var(--c-ink-3);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0;}
.section-alt{background:var(--c-surface-2);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-title{font-size:32px;line-height:1.35;margin-bottom:14px;}
.section-sub{font-size:16px;color:var(--c-ink-2);margin:0;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--c-teal);
  letter-spacing:.02em;
  margin-bottom:10px;
}

/* ---------- 服务矩阵 ---------- */
.service-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.service-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:30px 26px;
  box-shadow:var(--sh-1);
  display:flex;
  flex-direction:column;
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.service-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C9D9E9;}
.service-card:hover .service-title{color:var(--c-primary);}
.icon-badge{
  width:48px;
  height:48px;
  border-radius:12px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:19px;
  margin-bottom:20px;
}
.icon-badge.teal{background:var(--c-teal-l);color:var(--c-teal);}
.service-title{font-size:19px;line-height:1.5;margin-bottom:12px;transition:color .22s var(--ease);}
.service-desc{font-size:15px;line-height:1.85;color:var(--c-ink-2);margin-bottom:18px;}
.service-link{
  margin-top:auto;
  font-size:15px;
  font-weight:600;
  color:var(--c-primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.service-link i{transition:transform .22s var(--ease);font-size:13px;}
.service-link:hover{text-decoration:none;color:var(--c-primary-d);}
.service-link:hover i{transform:translateX(3px);}

/* ---------- 提示条与清单 ---------- */
.notice-bar{
  display:flex;
  gap:16px;
  align-items:flex-start;
  background:var(--c-teal-l);
  border-radius:var(--r-card);
  padding:22px 26px;
  margin-bottom:36px;
}
.notice-bar i{color:var(--c-teal);font-size:20px;line-height:1.4;}
.notice-bar p{margin:0;font-size:15.5px;color:#0B5F56;line-height:1.8;}
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px 32px;
}
.check-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-small);
  padding:20px 22px;
  display:flex;
  gap:14px;
  align-items:flex-start;
  transition:border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.check-item:hover{border-color:#C9D9E9;box-shadow:var(--sh-1);}
.check-item i{color:var(--c-primary);font-size:16px;margin-top:5px;}
.check-item h3{font-size:16px;margin-bottom:6px;}
.check-item p{font-size:14.5px;line-height:1.8;margin:0;color:var(--c-ink-2);}

/* ---------- 处理环节 ---------- */
.step-bar{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--c-line);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.step-item{
  background:var(--c-surface);
  padding:30px 26px;
  transition:background-color .22s var(--ease);
}
.step-item:hover{background:#FBFDFF;}
.step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:50%;
  background:var(--c-primary);
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
  font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:18px;margin-bottom:10px;}
.step-item p{font-size:14.8px;line-height:1.85;margin:0;color:var(--c-ink-2);}

/* ---------- 渠道卡 ---------- */
.channel-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.channel-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--sh-1);
  display:flex;
  flex-direction:column;
  transition:transform .22s var(--ease), box-shadow .22s var(--ease);
}
.channel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.channel-card h3{font-size:18px;margin:16px 0 10px;}
.channel-card p{font-size:15px;line-height:1.85;color:var(--c-ink-2);margin-bottom:18px;}
.channel-meta{
  margin-top:auto;
  font-size:13.5px;
  color:var(--c-ink-3);
  padding-top:16px;
  border-top:1px solid var(--c-line-soft);
}
.tag{
  display:inline-block;
  font-size:12.5px;
  font-weight:600;
  padding:4px 12px;
  border-radius:999px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  line-height:1.6;
}
.tag.teal{background:var(--c-teal-l);color:#0B6E63;}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-small);
  margin-bottom:12px;
  overflow:hidden;
  transition:background-color .22s var(--ease), border-color .22s var(--ease);
}
.faq-item.active{background:var(--c-surface-2);border-color:#C9D9E9;}
.faq-btn{
  width:100%;
  background:none;
  border:none;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--c-ink);
  line-height:1.6;
  padding:22px 56px 22px 24px;
  min-height:56px;
  cursor:pointer;
  position:relative;
  transition:color .22s var(--ease);
}
.faq-btn:hover{color:var(--c-primary);}
.faq-btn .faq-icon{
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  color:var(--c-ink-3);
  font-size:14px;
  transition:transform .2s var(--ease), color .2s var(--ease);
}
.faq-item.active .faq-btn .faq-icon{transform:translateY(-50%) rotate(180deg);color:var(--c-primary);}
.faq-item.active .faq-btn::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  background:var(--c-primary);
  border-radius:0 3px 3px 0;
}
.faq-body{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-body-inner{
  padding:0 24px 20px 24px;
  font-size:15px;
  line-height:1.9;
  color:var(--c-ink-2);
}

/* ---------- CTA 与表单 ---------- */
.cta-wrap{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:start;
}
.trust-list{display:flex;flex-direction:column;gap:0;}
.trust-item{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:22px 0;
  border-bottom:1px solid var(--c-line);
}
.trust-item:first-child{padding-top:6px;}
.trust-item i{
  width:40px;
  height:40px;
  border-radius:10px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  flex:0 0 auto;
}
.trust-item h3{font-size:16.5px;margin-bottom:6px;}
.trust-item p{font-size:14.5px;line-height:1.8;margin:0;color:var(--c-ink-2);}
.trust-note{font-size:13px;color:var(--c-ink-3);margin-top:18px;line-height:1.8;}
.form-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:32px;
}
.form-card h3{font-size:20px;margin-bottom:8px;}
.form-card .form-tip{font-size:14px;color:var(--c-ink-3);margin-bottom:24px;}
.field{margin-bottom:20px;}
.field label{
  display:block;
  font-size:14px;
  font-weight:500;
  color:var(--c-ink);
  margin-bottom:8px;
}
.field .req{color:var(--c-err);margin-left:4px;}
.field input,
.field select,
.field textarea{
  width:100%;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#fff;
  font-family:inherit;
  font-size:15px;
  color:var(--c-ink);
  padding:12px 14px;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field input,.field select{height:48px;padding:0 14px;}
.field textarea{min-height:120px;line-height:1.8;resize:vertical;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(22,82,140,.14);
}
.field input::placeholder,.field textarea::placeholder{color:#A6B4C2;}
.field.error input,.field.error select,.field.error textarea{border-color:var(--c-err);}
.field .err-msg{
  display:none;
  font-size:13px;
  color:var(--c-err);
  margin-top:6px;
}
.field.error .err-msg{display:block;}
.form-privacy{font-size:12.5px;color:var(--c-ink-3);margin:16px 0 0;line-height:1.8;}
.form-alert{
  display:none;
  background:var(--c-teal-l);
  color:#0B5F56;
  border-radius:var(--r-small);
  padding:14px 18px;
  font-size:14.5px;
  margin-bottom:22px;
}
.form-alert.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-primary-d);
  color:rgba(255,255,255,.75);
  padding:72px 0 0;
  margin-top:var(--sp-section);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
}
.footer-brand .brand-text{color:#fff;font-size:18px;}
.footer-about{
  font-size:14.5px;
  line-height:1.85;
  color:rgba(255,255,255,.72);
  margin:0;
  max-width:34em;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-links li{margin-bottom:12px;}
.footer-links a{
  color:rgba(255,255,255,.75);
  font-size:14.5px;
}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-contact li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14.5px;
  color:rgba(255,255,255,.75);
  margin-bottom:14px;
  line-height:1.75;
}
.footer-contact i{margin-top:4px;color:var(--c-teal);}
.footer-qr{
  margin-top:18px;
  width:104px;
  height:104px;
  border-radius:12px;
  border:1px dashed rgba(255,255,255,.35);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12.5px;
  color:rgba(255,255,255,.6);
  line-height:1.5;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  gap:10px 28px;
  justify-content:space-between;
  font-size:13.5px;
  color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-title{font-size:40px;}
  .service-grid{gap:20px;}
}
@media (max-width:991px){
  :root{--sp-section:64px;}
  .nav-main{display:none;}
  .btn-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-drawer{display:block;}
  .header-inner{min-height:66px;gap:16px;}
  .page-hero{padding:32px 0 56px;}
  .hero-title{font-size:34px;}
  .hero-media{margin-top:36px;}
  .service-grid{grid-template-columns:repeat(2,1fr);}
  .channel-grid{grid-template-columns:repeat(2,1fr);}
  .step-bar{grid-template-columns:1fr;}
  .step-item{border-bottom:1px solid var(--c-line);}
  .cta-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section-head{margin-bottom:32px;}
}
@media (max-width:767px){
  :root{--sp-section:54px;}
  .section-title{font-size:26px;}
  .hero-title{font-size:31px;}
  .hero-lead{font-size:16px;}
  .check-grid{grid-template-columns:1fr;}
  .service-grid{grid-template-columns:1fr;}
  .channel-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .form-card{padding:24px;}
}
@media (max-width:575px){
  body{font-size:15.5px;}
  :root{--sp-section:44px;}
  .hero-title{font-size:29px;letter-spacing:-.2px;}
  .section-title{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .faq-btn{font-size:16px;padding:18px 50px 18px 18px;}
  .faq-body-inner{padding:0 18px 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category2 */
:root{
  --c-primary:#16528C;
  --c-primary-d:#0E3A66;
  --c-primary-l:#E8F1FA;
  --c-teal:#0E9E8E;
  --c-teal-l:#E4F5F2;
  --c-accent:#E4762F;
  --c-bg:#F5F8FB;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF3F9;
  --c-line:#DCE6F0;
  --c-line-soft:#EBF1F7;
  --c-ink:#14202B;
  --c-ink-2:#46586A;
  --c-ink-3:#7C8C9C;
  --c-success:#17916F;
  --c-warn:#C98410;
  --c-warn-l:#FBF1DF;
  --c-error:#C34A3A;
  --r-card:14px;
  --r-md:12px;
  --r-btn:10px;
  --r-hero:18px;
  --sh-1:0 1px 2px rgba(16,42,67,.05),0 8px 24px -12px rgba(16,42,67,.14);
  --sh-2:0 2px 4px rgba(16,42,67,.06),0 18px 40px -16px rgba(16,42,67,.22);
  --sp-section:88px;
  --font-base:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:-.4px}
h1{font-size:46px;line-height:1.25;letter-spacing:-.6px}
h2{font-size:32px;line-height:1.35}
h3{font-size:19px;line-height:1.5;font-weight:600;letter-spacing:0}
p{margin:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(22,82,140,.28);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:960px;margin:0 auto;padding:0 24px}
@media (min-width:1200px){.container{max-width:1140px}}
@media (min-width:1400px){.container{max-width:1240px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);
  -webkit-backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--c-line-soft);
  transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:0 1px 2px rgba(16,42,67,.06),0 10px 24px -18px rgba(16,42,67,.35)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:11px;background:var(--c-primary-l)}
.brand-text{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:2px}
.nav-main .nav-link{
  position:relative;padding:10px 14px;font-size:15.5px;font-weight:500;
  color:var(--c-ink-2);text-decoration:none;white-space:nowrap;transition:color .2s ease;
}
.nav-main .nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:16px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:translateX(-50%) scaleX(0);transform-origin:center;
  transition:transform .22s cubic-bezier(.2,.7,.3,1);
}
.nav-main .nav-link:hover{color:var(--c-primary)}
.nav-main .nav-link:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-main .nav-link.active{color:var(--c-primary);font-weight:600}
.nav-main .nav-link.active::after{transform:translateX(-50%) scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  border:1px solid transparent;text-decoration:none;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),background .2s ease,box-shadow .2s ease;
}
.btn-cta:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);text-decoration:none}
.btn-cta:active{transform:translateY(0);filter:brightness(.94)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-btn);
  background:#fff;border:1px solid var(--c-line);color:var(--c-primary);
  cursor:pointer;transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--c-surface-2);border-color:var(--c-primary)}
.mobile-drawer{
  position:fixed;inset:0;z-index:1050;background:#fff;padding:0 24px 32px;
  transform:translateY(-12px);opacity:0;visibility:hidden;overflow-y:auto;
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;min-height:76px}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink-2);cursor:pointer;
}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;font-size:17px;color:var(--c-ink);text-decoration:none;
  border-bottom:1px solid var(--c-line-soft);
}
.drawer-nav a:hover{text-decoration:none;color:var(--c-primary)}
.drawer-nav a.active{color:var(--c-primary);font-weight:600}
.drawer-nav a i{font-size:13px;color:var(--c-ink-3)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0}
.section-tight{padding-top:0}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;background:var(--c-primary-l);
  color:var(--c-primary);font-size:13.5px;font-weight:600;letter-spacing:0;margin-bottom:18px;
}
.eyebrow i{font-size:12px}
.section-title{font-size:32px;line-height:1.35}
.section-lead{margin-top:14px;font-size:16px;color:var(--c-ink-2);max-width:640px}
.divider{height:1px;background:var(--c-line-soft);border:0;margin:0}

/* ---------- 面包屑 ---------- */
.breadcrumb-nav{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;color:var(--c-ink-3);margin-bottom:26px;
}
.breadcrumb-nav a{color:var(--c-ink-3);text-decoration:none}
.breadcrumb-nav a:hover{color:var(--c-primary)}
.breadcrumb-nav .sep{opacity:.5}
.breadcrumb-nav .current{color:var(--c-ink-2);font-weight:500}

/* ---------- Hero ---------- */
.hero{padding:44px 0 88px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);gap:48px;align-items:center}
.hero-copy h1{margin-bottom:18px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--c-ink-2);max-width:520px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:flex;flex-wrap:wrap;gap:18px;margin-top:28px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:var(--c-ink-2)}
.hero-points i{color:var(--c-teal);font-size:15px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-hero);box-shadow:var(--sh-2);background:var(--c-primary-l);
}
.float-card{
  position:absolute;left:-16px;bottom:26px;
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:14px 18px;box-shadow:var(--sh-1);
}
.float-card strong{font-size:30px;line-height:1;color:var(--c-teal);font-variant-numeric:tabular-nums;letter-spacing:-1px}
.float-card span{font-size:13.5px;color:var(--c-ink-3);line-height:1.4}

/* ---------- 按钮 ---------- */
.btn-el{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:14px 28px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),background .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
}
.btn-el i{font-size:13px}
.btn-solid{background:var(--c-primary);color:#fff}
.btn-solid:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);text-decoration:none}
.btn-solid:active{transform:translateY(0);filter:brightness(.94)}
.btn-outline{background:#fff;border-color:var(--c-line);color:var(--c-primary)}
.btn-outline:hover{border-color:var(--c-primary);background:var(--c-surface-2);color:var(--c-primary-d);text-decoration:none}
.btn-el[disabled],.btn-el.is-disabled{opacity:.55;cursor:not-allowed;filter:grayscale(.3);transform:none;box-shadow:none}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-primary)}
.link-more i{font-size:12px;transition:transform .2s ease}
.link-more:hover{text-decoration:none}
.link-more:hover i{transform:translateX(3px)}

/* ---------- 提示条 ---------- */
.notice-bar{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--c-teal-l);border:1px solid rgba(14,158,142,.22);
  border-radius:var(--r-card);padding:24px 28px;
}
.notice-icon{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--c-teal);font-size:18px;
}
.notice-bar h3{font-size:17px;margin-bottom:6px;color:#0B6C60}
.notice-bar p{font-size:15px;color:#2E5B56;line-height:1.8}

/* ---------- 说明卡双列 ---------- */
.card-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.info-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,border-color .22s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C9D9E8}
.card-icon{
  width:44px;height:44px;border-radius:12px;background:var(--c-primary-l);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);
  font-size:17px;margin-bottom:18px;
}
.info-card h3{margin-bottom:10px}
.info-card p{font-size:15.5px;line-height:1.85;color:var(--c-ink-2)}
.card-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--c-line-soft)}
.tag{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:var(--c-primary-l);color:var(--c-primary);
}
.tag-teal{background:var(--c-teal-l);color:#0B6C60}
.tag-warn{background:var(--c-warn-l);color:#8A5A08}

/* ---------- 对比条 ---------- */
.compare{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:12px 28px;box-shadow:var(--sh-1)}
.compare-row{
  display:grid;grid-template-columns:30% 54% 16%;gap:20px;align-items:center;
  padding:22px 0;border-bottom:1px solid var(--c-line-soft);
}
.compare-row:last-child{border-bottom:0}
.compare-name{font-size:15px;font-weight:600;color:var(--c-ink)}
.compare-name span{display:block;font-size:13px;font-weight:400;color:var(--c-ink-3);margin-top:4px}
.compare-bars{display:flex;flex-direction:column;gap:9px}
.bar{height:8px;border-radius:999px;background:var(--c-line);overflow:hidden}
.bar > span{display:block;height:100%;width:0;border-radius:999px;background:var(--c-line);transition:width .95s cubic-bezier(.2,.7,.3,1)}
.bar-good > span{background:linear-gradient(90deg,#0E9E8E,#13B5A2)}
.compare-tag{justify-self:end;padding:5px 10px;border-radius:6px;font-size:12.5px;font-weight:600;background:var(--c-teal-l);color:#0B6C60;white-space:nowrap}
.compare-tag.is-warn{background:var(--c-warn-l);color:#8A5A08}

/* ---------- 图文条 ---------- */
.split-media{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:center}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-md);box-shadow:var(--sh-1);background:var(--c-primary-l)}
.rules-list{display:grid;gap:14px;margin-top:24px}
.rule-item{
  display:flex;gap:14px;align-items:flex-start;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-md);padding:18px 20px;
}
.rule-item i{font-size:16px;margin-top:4px}
.rule-item.ok i{color:var(--c-success)}
.rule-item.stop i{color:var(--c-error)}
.rule-item strong{display:block;font-size:15.5px;color:var(--c-ink);font-weight:600;margin-bottom:4px}
.rule-item span{font-size:14.5px;color:var(--c-ink-2);line-height:1.75}
.rules-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:26px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq .accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;
  overflow:hidden;margin-bottom:12px;
}
.faq .accordion-button{
  position:relative;width:100%;padding:22px 56px 22px 24px;
  font-size:17px;font-weight:600;line-height:1.6;color:var(--c-ink);
  background:var(--c-surface);box-shadow:none!important;border-radius:12px!important;
}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:0 3px 3px 0;background:transparent;transition:background .2s ease;
}
.faq .accordion-button::after{
  width:18px;height:18px;background-size:18px;position:absolute;right:22px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%2316528C' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 6l5 5 5-5'/%3E%3C/svg%3E");
  transition:transform .2s ease;
}
.faq .accordion-button:hover{background:var(--c-surface-2)}
.faq .accordion-button:not(.collapsed){background:var(--c-surface-2);color:var(--c-primary)}
.faq .accordion-button:not(.collapsed)::before{background:var(--c-primary)}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq .accordion-body{padding:4px 24px 22px;font-size:15px;line-height:1.9;color:var(--c-ink-2)}
.faq .accordion-body p + p{margin-top:10px}

/* ---------- 转化表单 ---------- */
.apply-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:48px;align-items:start}
.trust-list{display:grid;gap:0;margin-top:26px}
.trust-item{display:flex;gap:14px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--c-line-soft)}
.trust-item:first-child{padding-top:0}
.trust-item i{font-size:17px;color:var(--c-primary);margin-top:4px}
.trust-item strong{display:block;font-size:15.5px;color:var(--c-ink);margin-bottom:4px}
.trust-item span{font-size:14px;color:var(--c-ink-3);line-height:1.7}
.trust-note{margin-top:22px;font-size:13.5px;color:var(--c-ink-3)}
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-1)}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:500;color:var(--c-ink);margin-bottom:8px}
.field .req{color:var(--c-error);margin-left:2px}
.form-control-el,.form-select-el{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.form-control-el{height:auto;min-height:120px;padding:12px 14px;line-height:1.75;resize:vertical}
.form-control-el:focus,.form-select-el:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(22,82,140,.16);
}
.form-control-el.is-invalid,.form-select-el.is-invalid{border-color:var(--c-error)}
.form-control-el.is-invalid:focus{box-shadow:0 0 0 3px rgba(195,74,58,.16)}
.field-error{display:none;margin-top:6px;font-size:13px;color:var(--c-error)}
.form-state{display:none;margin-top:18px;padding:12px 16px;border-radius:var(--r-md);font-size:14px}
.form-state.is-ok{display:block;background:var(--c-teal-l);color:#0B6C60;border:1px solid rgba(14,158,142,.25)}
.form-state.is-err{display:block;background:#FBECEA;color:#94372B;border:1px solid rgba(195,74,58,.25)}
.form-privacy{margin-top:14px;font-size:12.5px;color:var(--c-ink-3);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-d);color:rgba(255,255,255,.75);padding:64px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:300px}
.footer-title{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;letter-spacing:0}
.footer-links li,.footer-contact li{margin-bottom:10px;font-size:14px}
.footer-links a{color:rgba(255,255,255,.75);text-decoration:none}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;line-height:1.7}
.footer-contact i{margin-top:4px;color:var(--c-teal)}
.footer-qr{
  margin-top:16px;width:96px;height:96px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.35);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:rgba(255,255,255,.55);line-height:1.5;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sp-section:72px}
  h1{font-size:40px}
  .hero-grid{gap:36px}
}
@media (max-width:991px){
  :root{--sp-section:64px}
  h1{font-size:34px}
  h2,.section-title{font-size:26px}
  .nav-main{display:none}
  .nav-toggle{display:inline-flex}
  .hero{padding:28px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-visual{order:2}
  .hero-sub{max-width:none}
  .split-media{grid-template-columns:1fr;gap:28px}
  .apply-grid{grid-template-columns:1fr;gap:32px}
  .apply-grid .form-card{order:-1}
  .compare-row{grid-template-columns:1fr;gap:12px;padding:20px 0}
  .compare-tag{justify-self:start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{margin-top:64px}
}
@media (max-width:767px){
  :root{--sp-section:56px}
  .container{padding:0 20px}
  .card-grid-2{grid-template-columns:1fr}
  .rules-cols{grid-template-columns:1fr}
  .hero-cta .btn-el{flex:1 1 100%}
  .float-card{left:12px;bottom:12px;padding:12px 14px}
  .float-card strong{font-size:24px}
  .notice-bar{padding:20px;gap:14px}
  .compare{padding:8px 20px}
  .form-card{padding:24px}
}
@media (max-width:575px){
  :root{--sp-section:44px}
  .container{padding:0 18px}
  h1{font-size:30px}
  h2,.section-title{font-size:23px}
  .header-inner{min-height:64px}
  .brand-text{font-size:16px}
  .btn-cta{padding:0 16px;font-size:14px}
  .eyebrow{margin-bottom:14px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .info-card{padding:22px}
}