/* roulang page: index */
:root{
  --brand:#14607A;
  --brand-dark:#0E4759;
  --brand-light:#E8F1F4;
  --accent:#DE7A38;
  --accent-dark:#c9682c;
  --accent-light:#FDF0E6;
  --ink:#14202B;
  --muted:#5A6B78;
  --line:#E2E8EC;
  --bg:#F6F8F9;
  --card:#FFFFFF;
  --ok:#2E9E6B;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,32,43,.04),0 8px 24px rgba(20,32,43,.06);
  --sh-2:0 2px 6px rgba(20,32,43,.06),0 14px 34px rgba(20,32,43,.10);
  --sec-pad:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:22px}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover,a:focus{color:var(--brand-dark)}
button{font-family:inherit;cursor:pointer}
h1,h2,h3{font-family:var(--font-cn);color:var(--ink);font-weight:700;letter-spacing:-.2px}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;letter-spacing:-.5px}
h2{font-size:clamp(26px,3vw,34px);line-height:1.3}
h3{font-size:20px;line-height:1.45}
p{font-size:16px;line-height:1.85;color:var(--ink)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px}
.section{padding:var(--sec-pad) 0}
.section-tight{padding:56px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--brand);font-weight:600;letter-spacing:.5px;margin-bottom:10px}
.section-head .eyebrow::before{content:"";width:3px;height:16px;background:var(--brand);border-radius:2px;display:inline-block}
.section-head p.lead{color:var(--muted);font-size:16px;max-width:720px;margin-top:12px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:16px;font-weight:600;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease}
.btn:focus-visible{outline:2px solid rgba(20,96,122,.4);outline-offset:2px}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:rgba(20,96,122,.08);color:var(--brand-dark)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#fff;color:var(--brand);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:15px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.link-arrow::after{content:"→";transition:transform .2s ease}
.link-arrow:hover::after{transform:translateX(2px)}
.link-underline{border-bottom:1px solid transparent;padding-bottom:2px}
.link-underline:hover{border-bottom-color:currentColor}

/* 徽章 */
.badge{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);font-size:14px;font-weight:600;line-height:1}
.badge-brand{background:var(--brand-light);color:var(--brand)}
.badge-accent{background:var(--accent-light);color:var(--accent-dark)}

/* 导航 */
.site-header{position:sticky;top:0;z-index:80;height:64px;background:rgba(255,255,255,.94);backdrop-filter:saturate(160%) blur(8px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(20,32,43,.07)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;min-width:0;color:var(--ink)}
.brand:hover{color:var(--brand-dark)}
.brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:var(--brand-light);display:flex;align-items:center;justify-content:center}
.brand-mark svg{width:22px;height:22px;stroke:var(--brand);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:-.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.4px}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{position:relative;padding:8px 14px;border-radius:8px;font-size:15px;font-weight:500;color:var(--ink)}
.main-nav a:hover{background:var(--brand-light);color:var(--brand-dark)}
.main-nav a.active{color:var(--brand);font-weight:600}
.main-nav a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
.nav-side{display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;height:38px;border:1px solid var(--line);border-radius:var(--r-input);background:#fff;padding:0 12px;transition:border-color .2s ease,box-shadow .2s ease}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,96,122,.12)}
.nav-search input{border:0;outline:0;background:transparent;font-size:14px;width:170px;font-family:inherit;color:var(--ink)}
.nav-search input::placeholder{color:#94a3ad}
.nav-search svg{width:16px;height:16px;stroke:var(--muted);fill:none;stroke-width:2;margin-right:6px}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer-cta{display:none}

/* Hero */
.hero{position:relative;padding:calc(64px + 40px) 0 72px;background:linear-gradient(180deg,#fff 0%,var(--bg) 100%);overflow:hidden}
.hero::before{content:"";position:absolute;right:-120px;top:-60px;width:520px;height:520px;border-radius:50%;background:var(--brand-light);opacity:.65;z-index:0}
.hero-grid{position:relative;z-index:1}
.hero-copy .hero-tag{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:var(--r-pill);background:var(--accent-light);color:var(--accent-dark);font-size:14px;font-weight:600;margin-bottom:18px}
.hero-copy .hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block}
.hero-copy h1{margin-bottom:18px;max-width:620px}
.hero-copy .sub{font-size:17px;color:var(--muted);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px}
.trust-chip{display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;font-size:14px;color:var(--muted)}
.trust-chip svg{width:16px;height:16px;stroke:var(--ok);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.hero-visual{position:relative}
.hero-visual>img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;box-shadow:var(--sh-1)}
.float-card{position:absolute;left:20px;bottom:-26px;background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-2);padding:16px 20px;min-width:210px;border:1px solid var(--line)}
.float-card .fc-label{font-size:13px;color:var(--muted);margin-bottom:2px}
.float-card .fc-value{font-size:18px;font-weight:700;color:var(--brand-dark)}
.float-card .fc-note{font-size:13px;color:var(--muted);margin-top:6px}
.hero-stats{display:flex;gap:28px;margin-top:56px;flex-wrap:wrap}
.hero-stats .stat strong{display:block;font-size:26px;color:var(--brand);font-weight:700;line-height:1.3}
.hero-stats .stat span{font-size:14px;color:var(--muted)}

/* 保障条 */
.guarantee{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:36px 0}
.guarantee-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.g-item{display:flex;align-items:flex-start;gap:12px}
.g-item svg{width:28px;height:28px;flex:0 0 28px;stroke:var(--brand);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;margin-top:3px}
.g-item h3{font-size:16px;font-weight:600;margin-bottom:2px}
.g-item p{font-size:14px;color:var(--muted);line-height:1.7}

/* 主推卡片 */
.feature-card{position:relative;display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(20,96,122,.3)}
.feature-card .fc-media{position:relative;overflow:hidden}
.feature-card .fc-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.feature-card.large .fc-media img{aspect-ratio:16/8}
.feature-card .fc-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.feature-card h3{font-size:21px}
.feature-card.large h3{font-size:24px}
.feature-card .fc-text{color:var(--muted);font-size:15px;line-height:1.8}
.feature-card .fc-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px}
.feature-card .fc-tag{position:absolute;left:16px;top:16px;background:rgba(255,255,255,.94);color:var(--brand);font-size:13px;font-weight:600;padding:6px 12px;border-radius:var(--r-pill)}
.grid-gap{margin-bottom:24px}

/* 资讯列表 */
.news-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.news-row{display:flex;align-items:flex-start;gap:20px;padding:22px 24px 22px 26px;border-left:3px solid var(--brand);border-bottom:1px solid var(--line);transition:background-color .2s ease,border-color .2s ease}
.news-row:last-child{border-bottom:0}
.news-row:hover{background:#F9FBFC;border-left-color:var(--accent)}
.news-main{flex:1;min-width:0}
.news-main h3{font-size:19px;margin:8px 0 6px}
.news-main h3 a{color:var(--ink);border-bottom:1px solid transparent;padding-bottom:2px}
.news-main h3 a:hover{color:var(--brand);border-bottom-color:rgba(20,96,122,.4)}
.news-desc{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{flex:0 0 130px;text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.news-meta time{font-size:14px;color:var(--muted)}
.empty-state{padding:56px 24px;text-align:center}
.empty-state svg{width:64px;height:64px;margin:0 auto 14px;stroke:var(--brand);opacity:.35;fill:none;stroke-width:1.4}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:16px}

/* 评价 */
.review-track{display:flex;gap:24px;overflow-x:auto;padding:4px 4px 18px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.review-track::-webkit-scrollbar{height:8px}
.review-track::-webkit-scrollbar-thumb{background:#d5dde2;border-radius:8px}
.review-card{flex:0 0 348px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px;transition:transform .2s ease,box-shadow .2s ease}
.review-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex:0 0 44px}
.review-head .name{font-size:15px;font-weight:600}
.review-head .role{font-size:13px;color:var(--muted)}
.stars{display:flex;gap:3px;margin-bottom:12px}
.stars i{width:14px;height:14px;background:var(--accent);border-radius:2px;display:block;clip-path:polygon(50% 0%,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%)}
.review-card p{font-size:15px;color:var(--muted);line-height:1.8}

/* CTA 大条 */
.cta-band{background:var(--brand-light);border-radius:20px;padding:44px 48px;display:flex;align-items:center;gap:36px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-band .cta-copy{flex:1 1 440px;min-width:280px}
.cta-band h2{color:var(--brand-dark);margin-bottom:12px}
.cta-band p{color:#3d5560;font-size:16px;max-width:560px}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}
.cta-band .cta-media{flex:0 0 260px;max-width:260px}
.cta-band .cta-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1)}

/* FAQ */
.faq-group{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;transition:background-color .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#F9FBFC}
.faq-item summary::after{content:"+";font-size:22px;font-weight:400;color:var(--brand);line-height:1;transition:transform .25s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 24px 22px;max-width:68ch}
.faq-body p{font-size:15px;line-height:1.8;color:var(--muted)}

/* 页脚 */
.site-footer{background:var(--brand-dark);color:#c8dbe3;padding:64px 0 28px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.site-footer h3{color:#fff;font-size:16px;margin-bottom:16px;letter-spacing:.3px}
.site-footer .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.site-footer .footer-brand .brand-mark{background:rgba(255,255,255,.12)}
.site-footer .footer-brand .brand-mark svg{stroke:#fff}
.site-footer .footer-brand strong{color:#fff;font-size:16px}
.site-footer p{color:#a9c4ce;font-size:14px;line-height:1.8}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#c8dbe3;font-size:14px}
.footer-links a:hover{color:#fff}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
.footer-bottom span,.footer-bottom a{font-size:13px;color:#9db8c3}
.footer-bottom a:hover{color:#fff}

/* 响应式 */
@media (max-width:1023px){
  :root{--sec-pad:64px}
  .nav-wrap{height:56px}
  .site-header{height:56px}
  .nav-toggle{display:flex}
  .nav-search{display:none}
  .nav-side .btn{display:none}
  .main-nav{position:fixed;left:0;right:0;top:56px;bottom:0;background:#fff;flex-direction:column;align-items:stretch;gap:6px;padding:24px 24px 96px;overflow-y:auto;transform:translateY(-10px);opacity:0;visibility:hidden;transition:opacity .24s ease,transform .24s ease,visibility .24s;z-index:70}
  body.drawer-open .main-nav{opacity:1;visibility:visible;transform:none}
  .main-nav a{padding:16px 14px;font-size:17px;border-radius:12px;border:1px solid var(--line)}
  .main-nav a.active::after{display:none}
  .main-nav a.active{background:var(--brand-light);border-color:rgba(20,96,122,.25)}
  .drawer-cta{display:block;position:fixed;left:24px;right:24px;bottom:20px}
  .body-lock{overflow:hidden}
  .hero{padding:calc(56px + 28px) 0 48px}
  .hero-copy h1{max-width:none}
  .float-card{position:static;margin-top:16px;min-width:0}
  .guarantee-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .feature-card.large .fc-media img{aspect-ratio:16/10}
  .feature-card h3,.feature-card.large h3{font-size:20px}
  .cta-band{padding:32px 28px}
  .cta-band .cta-media{flex:1 1 100%;max-width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .review-card{flex:0 0 300px}
}
@media (max-width:639px){
  :root{--sec-pad:48px}
  .container{padding:0 20px}
  .brand-text strong{font-size:15px}
  .brand-text em{display:none}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:20px}
  .news-row{flex-direction:column;gap:10px;padding:20px}
  .news-meta{flex:0 0 auto;align-items:flex-start;text-align:left;flex-direction:row;gap:14px}
  .review-card{flex:0 0 84%}
  .guarantee-grid{grid-template-columns:1fr 1fr}
  .guarantee{padding:28px 0}
  .cta-band{padding:26px 22px;border-radius:16px}
  .cta-band .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .faq-item summary{font-size:16px;padding:18px 20px}
  .faq-body{padding:0 20px 20px}
}

/* roulang page: article */
:root{
  --primary:#14607A;
  --primary-dark:#0E4759;
  --primary-light:#E8F1F4;
  --accent:#DE7A38;
  --accent-dark:#c96a2c;
  --accent-light:#FDF0E6;
  --text:#14202B;
  --muted:#5A6B78;
  --line:#E2E8EC;
  --bg:#F6F8F9;
  --card:#FFFFFF;
  --success:#2E9E6B;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow:0 1px 2px rgba(20,32,43,.04), 0 8px 24px rgba(20,32,43,.06);
  --shadow-hover:0 2px 6px rgba(20,32,43,.06), 0 14px 34px rgba(20,32,43,.10);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --container:1200px;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:-.3px}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid rgba(20,96,122,.45);outline-offset:2px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 16px;z-index:200;border-radius:0 0 10px 0}
.skip-link:focus{left:0;color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3}
.section-head p{margin:8px 0 0;color:var(--muted);font-size:15px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);background:var(--primary-light);border-radius:999px;padding:6px 14px;letter-spacing:.2px}
.eyebrow.accent{color:#a9552a;background:var(--accent-light)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(222,122,56,.24)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:transparent;color:var(--primary);border-color:rgba(20,96,122,.45)}
.btn-secondary:hover{background:rgba(20,96,122,.08);color:var(--primary-dark);border-color:var(--primary)}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--line);box-shadow:var(--shadow)}
.btn-ghost:hover{border-color:rgba(20,96,122,.4);color:var(--primary-dark)}
.btn-sm{height:40px;padding:0 18px;font-size:15px}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);border-bottom:1px solid transparent;padding-bottom:2px}
.text-link:hover{border-bottom-color:var(--primary)}
.text-link .arrow{transition:transform .2s ease}
.text-link:hover .arrow{transform:translateX(2px)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;height:var(--nav-h);
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(20,32,43,.08)}
.nav-wrap{display:flex;align-items:center;gap:26px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--primary-light);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:-.2px}
.brand-text em{font-style:normal;font-size:12.5px;color:var(--muted);letter-spacing:.2px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:6px}
.main-nav > a{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:8px;font-size:15px;color:#2b3c47;font-weight:500;
}
.main-nav > a:hover{background:var(--primary-light);color:var(--primary-dark)}
.main-nav > a.active{color:var(--primary);font-weight:700}
.main-nav > a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--primary)
}
.nav-side{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{position:absolute;left:12px;width:16px;height:16px;fill:none;stroke:var(--muted);stroke-width:1.8;stroke-linecap:round}
.nav-search input{
  width:212px;height:40px;padding:0 12px 0 34px;border:1px solid var(--line);border-radius:var(--radius-input);
  background:#fff;font-size:15px;color:var(--text);transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:#93a3ad}
.nav-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(20,96,122,.12);outline:none}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:10px;
  align-items:center;justify-content:center;cursor:pointer;padding:0;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";display:block;width:18px;height:2px;background:var(--primary);border-radius:2px;position:relative;transition:transform .22s ease,opacity .22s ease
}
.nav-toggle span::before{position:absolute;top:-6px;left:0}
.nav-toggle span::after{position:absolute;top:6px;left:0}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}
.drawer-cta{display:none}

/* ============ 页面头部 / 面包屑 ============ */
.page-head{
  background:linear-gradient(180deg,#fff 0%,var(--primary-light) 100%);
  border-bottom:1px solid var(--line);
  padding:calc(var(--nav-h) + 30px) 0 46px;
}
.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:22px}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li::after{content:"›";color:#9aabb4}
.breadcrumb li:last-child::after{content:""}
.breadcrumb a{color:var(--muted);border-bottom:1px solid transparent}
.breadcrumb a:hover{color:var(--primary);border-bottom-color:currentColor}
.breadcrumb li[aria-current]{color:#2b3c47;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:52ch}
.article-head{max-width:860px}
.article-head h1{
  font-size:clamp(30px,3.6vw,38px);
  line-height:1.32;
  margin:16px 0 18px;
  letter-spacing:-.5px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:14px;color:var(--muted);
}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.meta-row svg{width:15px;height:15px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.head-line{height:1px;background:var(--line);margin:26px 0 0}

/* ============ 正文布局 ============ */
.article-wrap{padding:56px 0 88px}
.grid-x.g24{margin-left:-12px;margin-right:-12px}
.grid-x.g24 > .cell{padding-left:12px;padding-right:12px}
.article-main{min-width:0}
.article-cover{
  border-radius:var(--radius-img);overflow:hidden;background:var(--primary-light);
  box-shadow:var(--shadow);margin-bottom:34px;
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:38px 40px 34px;box-shadow:var(--shadow);
  font-size:17px;line-height:1.9;color:var(--text);overflow-wrap:break-word;word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;font-size:26px;line-height:1.35;margin:40px 0 16px;padding-left:14px;letter-spacing:-.3px
}
.article-body h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:3px;border-radius:3px;background:var(--primary)}
.article-body h3{font-size:20px;line-height:1.45;margin:28px 0 12px}
.article-body h4{font-size:17px;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px;line-height:1.85}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:var(--primary-light);
  border-left:3px solid var(--primary);border-radius:0 12px 12px 0;color:#173b49;font-size:16.5px
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);margin:22px auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:22px 0;box-shadow:none;background:#fff}
.article-body th{background:var(--primary-light);color:var(--primary-dark);font-weight:600}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article-body tr:nth-child(even) td{background:#fbfcfd}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(20,96,122,.35)}
.article-body a:hover{color:var(--primary-dark);border-bottom-color:var(--primary-dark)}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}
.article-body code{background:var(--primary-light);color:var(--primary-dark);padding:2px 6px;border-radius:6px;font-size:15px}

.empty-state{
  text-align:center;padding:56px 24px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow);
}
.empty-state .empty-icon{
  width:64px;height:64px;border-radius:20px;background:var(--primary-light);margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center
}
.empty-state .empty-icon svg{width:30px;height:30px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.empty-state p{font-size:15px;color:var(--muted);margin:0 0 20px}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:30px}
.tag-row .label{font-size:14px;color:var(--muted);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:var(--primary-light);color:var(--primary-dark);font-size:14px;font-weight:500;
  border:1px solid transparent;transition:background-color .2s ease,color .2s ease,border-color .2s ease
}
.tag:hover{background:#fff;border-color:rgba(20,96,122,.35);color:var(--primary)}
.tag.accent{background:var(--accent-light);color:#a9552a}
.tag.accent:hover{border-color:rgba(222,122,56,.45);color:#8f4520}
.back-row{margin-top:26px}

/* ============ 侧栏 ============ */
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 22px 18px;box-shadow:var(--shadow);margin-bottom:22px;
}
.side-card h3{font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:3px;height:16px;border-radius:3px;background:var(--accent)}
.toc-list{list-style:none;font-size:15px}
.toc-list li{margin-bottom:6px}
.toc-list a{
  display:block;padding:7px 10px;border-radius:8px;color:#33454f;border-left:2px solid var(--line);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease
}
.toc-list a:hover{background:var(--primary-light);color:var(--primary-dark);border-left-color:var(--primary)}
.side-card.sticky{position:sticky;top:calc(var(--nav-h) + 20px)}
.hot-list{list-style:none}
.hot-list li{border-bottom:1px dashed var(--line);padding:10px 0}
.hot-list li:last-child{border-bottom:0}
.hot-list a{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:#2b3c47;line-height:1.65}
.hot-list a:hover{color:var(--primary)}
.hot-list .idx{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;background:var(--primary-light);color:var(--primary-dark);
  font-size:13px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;margin-top:2px
}
.hot-list li:first-child .idx{background:var(--accent-light);color:#a9552a}

/* ============ 内容卡 ============ */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(20,96,122,.3)}
.card-media{overflow:hidden;background:var(--primary-light)}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.card-body h3{font-size:19px;line-height:1.5;margin:12px 0 8px}
.card-body h3 a{color:var(--text)}
.card-body h3 a:hover{color:var(--primary)}
.card-body p{font-size:14px;line-height:1.75;color:var(--muted);margin:0 0 16px}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px}
.badge{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;font-size:14px;font-weight:500;background:var(--primary-light);color:var(--primary-dark)}
.badge.accent{background:var(--accent-light);color:#a9552a}

/* ============ 列表行卡 ============ */
.list-row{
  display:flex;gap:18px;align-items:flex-start;background:var(--card);border:1px solid var(--line);
  border-left:3px solid var(--primary);border-radius:12px;padding:18px 20px;margin-bottom:12px;
  transition:background-color .2s ease,border-color .2s ease,transform .2s ease
}
.list-row:hover{background:#F9FBFC;border-left-color:var(--accent);transform:translateY(-1px)}
.list-row .num{
  flex:0 0 auto;font-size:15px;font-weight:700;color:var(--primary);background:var(--primary-light);
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center
}
.list-row h3{font-size:17px;line-height:1.55;margin-bottom:6px}
.list-row p{font-size:14px;color:var(--muted);margin:0}

/* ============ 数据块 / 保障条 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px 22px;box-shadow:var(--shadow)
}
.stat strong{display:block;font-size:26px;color:var(--accent);line-height:1.2;letter-spacing:-.5px}
.stat span{font-size:14px;color:var(--muted)}
.guard-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow)
}
.guard{display:flex;gap:12px;align-items:flex-start}
.guard svg{width:28px;height:28px;flex:0 0 auto;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.guard strong{display:block;font-size:16px;margin-bottom:4px}
.guard span{font-size:14px;color:var(--muted);line-height:1.7}

/* ============ CTA 大条 ============ */
.cta-band{
  background:var(--primary-light);border:1px solid rgba(20,96,122,.16);border-radius:18px;
  padding:42px 44px;display:flex;align-items:center;gap:34px;box-shadow:var(--shadow);
}
.cta-band .cta-text{flex:1 1 auto;min-width:0}
.cta-band h2{font-size:clamp(23px,2.6vw,30px);line-height:1.35;margin-bottom:12px;color:var(--primary-dark)}
.cta-band p{margin:0 0 22px;color:#33454f;font-size:16px;max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-media{flex:0 0 260px;border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow)}
.cta-media img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ============ FAQ ============ */
.faq-list{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;text-align:left;cursor:pointer;padding:20px 24px;
  font-size:17px;font-weight:600;color:var(--text);transition:background-color .2s ease
}
.faq-q:hover{background:#F9FBFC}
.faq-q .plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;background:var(--primary-light);position:relative;
  transition:transform .28s ease,background-color .28s ease
}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--primary);border-radius:2px;left:50%;top:50%}
.faq-q .plus::before{width:12px;height:2px;transform:translate(-50%,-50%)}
.faq-q .plus::after{width:2px;height:12px;transform:translate(-50%,-50%)}
.faq-item.open .faq-q .plus{transform:rotate(180deg);background:var(--accent-light)}
.faq-item.open .faq-q .plus::before,.faq-item.open .faq-q .plus::after{background:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted);max-width:68ch}
.faq-item.open .faq-a{max-height:420px}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-dark);color:#c8dbe3;padding:66px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.1)}
.footer-brand .brand-mark svg{stroke:#8fc3d4}
.footer-brand strong{color:#fff;font-size:17px}
.site-footer p{font-size:14px;line-height:1.85;color:#a9c3cd;margin:0}
.site-footer h3{color:#fff;font-size:16px;margin-bottom:16px}
.footer-links{list-style:none}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#c8dbe3;font-size:14px;border-bottom:1px solid transparent}
.footer-links a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.7)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13.5px;color:#9db8c2
}
.footer-bottom a{color:#c8dbe3}
.footer-bottom a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:64px 0}
  .article-wrap{padding:40px 0 64px}
  .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;top:var(--nav-h);left:0;right:0;bottom:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;margin:0;padding:18px 24px 110px;
    transform:translateX(100%);transition:transform .28s ease;overflow-y:auto;z-index:90;
    border-top:1px solid var(--line);
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav > a{height:auto;padding:15px 4px;border-bottom:1px solid var(--line);border-radius:0;font-size:16px}
  .main-nav > a.active::after{display:none}
  .main-nav > a.active{color:var(--primary)}
  .drawer-cta{display:block;margin-top:auto;padding-top:24px}
  .site-header .nav-side .btn-primary{display:none}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px}
  .cta-media{flex:1 1 auto;width:100%;max-width:420px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .stat-grid,.guard-band{grid-template-columns:1fr 1fr}
  .article-body{padding:30px 26px}
  .side-card.sticky{position:static}
}
@media (max-width:639px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:48px 0}
  .brand-text strong{font-size:15px}
  .brand-text em{font-size:11.5px}
  .btn{width:100%}
  .cta-actions{width:100%}
  .nav-side .btn-sm{width:auto}
  .page-head{padding:calc(var(--nav-h) + 22px) 0 34px}
  .article-head h1{font-size:30px}
  .article-body{font-size:16px;padding:24px 20px;line-height:1.85}
  .article-body h2{font-size:22px;margin-top:34px}
  .article-body h3{font-size:18.5px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .stat-grid,.guard-band{grid-template-columns:1fr;gap:16px}
  .meta-row{gap:8px 16px}
  .breadcrumb li[aria-current]{max-width:100%;white-space:normal}
  .list-row{flex-direction:column;gap:12px}
}

/* roulang page: category1 */
:root{
  --primary:#14607A;
  --primary-dark:#0E4759;
  --primary-light:#E8F1F4;
  --accent:#DE7A38;
  --accent-light:#FDF0E6;
  --ink:#14202B;
  --muted:#5A6B78;
  --line:#E2E8EC;
  --bg:#F6F8F9;
  --card:#FFFFFF;
  --ok:#2E9E6B;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(20,32,43,.04),0 8px 24px rgba(20,32,43,.06);
  --shadow-2:0 2px 6px rgba(20,32,43,.06),0 14px 34px rgba(20,32,43,.10);
  --nav-h:64px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;border-radius:var(--radius-img)}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;color:var(--ink);letter-spacing:-.2px}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid rgba(20,96,122,.45);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{margin-bottom:28px;display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}
.section-head h2{font-size:clamp(24px,2.8vw,32px);margin-bottom:10px}
.section-head .lead{color:var(--muted);font-size:15px;margin:0;max-width:66ch}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(20,32,43,.09)}
.nav-wrap{display:flex;align-items:center;gap:16px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:16px;color:var(--primary-dark);letter-spacing:-.3px;white-space:nowrap}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:10px}
.main-nav>a{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--muted);
  text-decoration:none;transition:background-color .2s ease,color .2s ease;
}
.main-nav>a:hover{color:var(--primary);background:var(--primary-light);text-decoration:none}
.main-nav>a.active{color:var(--primary-dark);background:var(--primary-light);font-weight:600}
.drawer-cta{display:none}
.nav-side{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(20,96,122,.12)}
.nav-search svg{width:16px;height:16px;fill:none;stroke:var(--muted);stroke-width:1.8;stroke-linecap:round;flex:0 0 auto}
.nav-search input{border:0;outline:0;background:transparent;width:150px;font-size:14px;color:var(--ink)}
.nav-search input::placeholder{color:#93a5af}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  border-radius:var(--radius-btn);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;flex:0 0 auto;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--primary-dark);transition:background-color .2s ease}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;
  background:var(--primary-dark);transition:transform .22s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  text-decoration:none;white-space:nowrap;
  transition:background-color .2s ease,transform .18s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#c96c2e;color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(222,122,56,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:transparent;color:var(--primary);border-color:rgba(20,96,122,.45)}
.btn-outline:hover{background:rgba(20,96,122,.08);color:var(--primary-dark);border-color:var(--primary)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 12px;
  border-radius:999px;font-size:14px;font-weight:500;line-height:1.4;
}
.badge-primary{background:var(--primary-light);color:var(--primary-dark)}
.badge-accent{background:var(--accent-light);color:#b95f22}
.count-pill{
  display:inline-flex;align-items:center;gap:8px;margin-top:6px;
  padding:7px 14px;border-radius:999px;background:#fff;
  border:1px solid var(--line);font-size:14px;color:var(--muted);
}
.count-pill i{width:7px;height:7px;border-radius:50%;background:var(--ok);display:inline-block}

/* ---------- Hero ---------- */
.cat-hero{padding:40px 0 56px;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%)}
.breadcrumb{margin-bottom:20px;font-size:14px;color:var(--muted)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline}
.breadcrumb .sep{color:#A6B6BF}
.cat-hero h1{font-size:clamp(30px,4.2vw,42px);line-height:1.2;font-weight:700;letter-spacing:-.5px;margin:14px 0 16px}
.cat-hero .hero-lead{font-size:16px;color:var(--muted);max-width:58ch;margin-bottom:20px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;box-shadow:var(--shadow-1)}
.hero-float{
  position:absolute;left:18px;bottom:18px;right:18px;
  display:flex;align-items:center;gap:14px;
  background:rgba(255,255,255,.94);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:14px 16px;box-shadow:var(--shadow-1);
}
.hero-float .dot{width:10px;height:10px;border-radius:50%;background:var(--ok);flex:0 0 auto;box-shadow:0 0 0 4px rgba(46,158,107,.14)}
.hero-float strong{font-size:14px;color:var(--primary-dark);display:block;line-height:1.4}
.hero-float span{font-size:13px;color:var(--muted);line-height:1.4}

/* ---------- Sidebar ---------- */
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:22px;margin-bottom:20px;
}
.side-card h2{
  font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:9px;
}
.side-card h2::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--primary);flex:0 0 auto}
.side-note{font-size:13px;color:var(--muted);line-height:1.75;margin:0}
.cat-nav li+li{margin-top:8px}
.cat-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:var(--radius-btn);font-size:15px;
  color:var(--muted);border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.cat-nav a:hover{background:#F9FBFC;color:var(--primary);border-color:var(--line);text-decoration:none}
.cat-nav a.current{background:var(--primary-light);color:var(--primary-dark);font-weight:600;border-color:rgba(20,96,122,.22)}
.cat-nav a .arrow{font-size:13px;color:#A6B6BF}
.cat-nav a.current .arrow{color:var(--primary)}
.side-search label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px}
.side-search input{
  width:100%;height:46px;padding:0 14px;font-size:15px;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-input);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.side-search input::placeholder{color:#9BABB4}
.side-search input:focus{outline:0;border-color:var(--primary);box-shadow:0 0 0 3px rgba(20,96,122,.12)}
.side-search button{margin-top:12px}
.tip-list li{
  position:relative;padding-left:18px;font-size:14px;line-height:1.75;
  color:var(--muted);margin-bottom:10px;
}
.tip-list li:last-child{margin-bottom:0}
.tip-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;
  border-radius:50%;background:var(--accent);
}

/* ---------- Card list ---------- */
.list-head{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px;margin-bottom:18px;
}
.list-head h2{font-size:20px}
.list-head span{font-size:14px;color:var(--muted)}
.card-row{
  position:relative;display:grid;grid-template-columns:220px 1fr;gap:20px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:18px;margin-bottom:16px;overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card-row::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--primary);transition:background-color .22s ease;
}
.card-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(20,96,122,.3)}
.card-row:hover::before{background:var(--accent)}
.card-thumb{
  border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/10;
  background:rgba(20,96,122,.08);
}
.card-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .45s ease}
.card-row:hover .card-thumb img{transform:scale(1.04)}
.card-body{min-width:0;display:flex;flex-direction:column}
.card-row h3{font-size:19px;line-height:1.45;margin:10px 0 8px}
.card-row h3 a{color:var(--ink);text-decoration:none}
.card-row h3 a:hover{color:var(--primary);text-decoration:underline}
.card-row .excerpt{font-size:14px;line-height:1.75;color:var(--muted);margin:0 0 14px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--muted);margin-top:auto}
.link-arrow{
  display:inline-flex;align-items:center;gap:5px;margin-left:auto;
  font-size:14px;font-weight:600;color:var(--primary);text-decoration:none;
}
.link-arrow::after{content:"→";transition:transform .18s ease}
.link-arrow:hover{text-decoration:underline}
.link-arrow:hover::after{transform:translateX(2px)}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--primary-light);
  border:1px solid rgba(20,96,122,.14);
  border-radius:18px;padding:40px;
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-band .cta-copy{flex:1 1 420px;min-width:0}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-band p{color:var(--muted);font-size:15px;margin:0;max-width:62ch}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- FAQ ---------- */
.faq-shell{max-width:880px}
.accordion{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:#fff;box-shadow:var(--shadow-1);overflow:hidden;margin:0;
}
.accordion .accordion-item+.accordion-item{border-top:1px solid var(--line)}
.accordion .accordion-title{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);
  background:#fff;border:0;text-decoration:none;transition:background-color .2s ease,color .2s ease;
}
.accordion .accordion-title::before{content:none!important;display:none!important}
.accordion .accordion-title::after{
  content:"＋";font-size:18px;line-height:1;color:var(--primary);
  transition:transform .25s ease;flex:0 0 auto;
}
.accordion .accordion-item.is-active .accordion-title{color:var(--primary-dark);background:#F9FBFC}
.accordion .accordion-item.is-active .accordion-title::after{content:"－"}
.accordion .accordion-title:hover{background:#F9FBFC;color:var(--primary);text-decoration:none}
.accordion .accordion-content{
  padding:0 24px;max-width:68ch;font-size:15px;line-height:1.8;color:var(--muted);
  border:0;background:#fff;
}
.accordion .accordion-content p{padding-bottom:20px;margin:0}

/* ---------- Footer ---------- */
.site-footer{background:var(--primary-dark);color:#C8DBE3;padding:64px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff}
.footer-brand strong{color:#fff;font-size:17px}
.site-footer p{font-size:14px;line-height:1.8;color:#A9C3CD;margin:0}
.site-footer h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#B7CED7;font-size:14px;text-decoration:none;transition:color .2s ease}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#9DB8C2;
}
.footer-bottom a{color:#DBE9EE;text-decoration:underline}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .nav-wrap{height:56px;gap:12px}
  .brand-text strong{font-size:15px}
  .brand-text em{display:none}
  .nav-toggle{display:flex}
  .nav-search{display:none}
  .nav-side .btn-sm{display:none}
  .main-nav{
    position:fixed;left:0;right:0;top:56px;bottom:0;
    display:flex;flex-direction:column;align-items:stretch;gap:8px;
    margin:0;padding:20px 24px 120px;background:#fff;
    overflow-y:auto;z-index:90;
    transform:translateX(100%);opacity:0;visibility:hidden;
    transition:transform .28s ease,opacity .28s ease,visibility .28s ease;
  }
  .main-nav.is-open{transform:translateX(0);opacity:1;visibility:visible}
  .main-nav>a{padding:14px 16px;border-radius:12px;font-size:16px;border:1px solid var(--line);color:var(--ink)}
  .main-nav>a.active{background:var(--primary-light);border-color:rgba(20,96,122,.24)}
  .drawer-cta{display:block;margin-top:auto;padding-top:20px}
  .cat-hero{padding:28px 0 44px}
  .hero-visual{margin-top:28px}
  .card-row{grid-template-columns:190px 1fr;gap:16px}
  .cta-band{padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:52px 0}
  .cat-hero{padding:22px 0 36px}
  .card-row{grid-template-columns:1fr;gap:14px;padding:16px}
  .card-thumb{aspect-ratio:16/9}
  .card-row h3{font-size:18px}
  .link-arrow{margin-left:0}
  .cta-band{padding:26px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .hero-float{left:12px;right:12px;bottom:12px;padding:12px 14px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{margin-top:64px;padding-top:48px}
}
@media (max-width:520px){
  .brand-text strong{font-size:14px;white-space:normal;line-height:1.25}
  .cat-hero h1{font-size:30px}
  .btn{height:44px;padding:0 18px;font-size:15px}
  .btn-block{width:100%}
  .accordion .accordion-title{padding:16px 18px;font-size:16px}
  .accordion .accordion-content{padding:0 18px}
}

/* roulang page: category2 */
:root{
  --primary:#14607A;
  --primary-dark:#0E4759;
  --primary-light:#E8F1F4;
  --accent:#DE7A38;
  --accent-dark:#CF6C2C;
  --accent-light:#FDF0E6;
  --text:#14202B;
  --muted:#5A6B78;
  --line:#E2E8EC;
  --bg:#F6F8F9;
  --card:#FFFFFF;
  --ok:#2E9E6B;
  --danger:#D9534F;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(20,32,43,.04),0 8px 24px rgba(20,32,43,.06);
  --shadow-2:0 2px 6px rgba(20,32,43,.06),0 14px 34px rgba(20,32,43,.10);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Inter,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--primary);text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid rgba(20,96,122,.45);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.3px}
p{margin:0 0 16px}
ul{margin:0;padding:0}
li{list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(20,32,43,.08)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:var(--primary-light);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{
  width:24px;height:24px;fill:none;stroke:var(--primary);
  stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
}
.brand-text strong{display:block;font-size:16px;line-height:1.3;letter-spacing:-.2px}
.brand-text em{display:block;font-style:normal;font-size:13px;color:var(--muted);line-height:1.4}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{
  padding:9px 15px;border-radius:999px;font-size:15px;color:var(--text);
  transition:background .18s ease,color .18s ease;
}
.main-nav a:hover{background:var(--primary-light);color:var(--primary-dark)}
.main-nav a.active{background:var(--primary);color:#fff}
.drawer-cta{display:none}
.nav-side{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{
  position:absolute;left:13px;width:16px;height:16px;fill:none;stroke:var(--muted);
  stroke-width:1.8;stroke-linecap:round;
}
.nav-search input{
  height:40px;width:225px;padding:0 16px 0 38px;
  border:1px solid var(--line);border-radius:999px;background:#fff;
  font-size:14px;color:var(--text);transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search input::placeholder{color:#8C9AA5}
.nav-search input:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(20,96,122,.12);
}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  background:#fff;border-radius:12px;position:relative;cursor:pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--primary);
  border-radius:2px;transform:translateX(-50%);transition:transform .22s ease,opacity .22s ease;
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";left:0;transform:none;top:-6px}
.nav-toggle span::after{content:"";left:0;transform:none;top:6px}
.nav-open .nav-toggle span{background:transparent}
.nav-open .nav-toggle span::before{transform:rotate(45deg);top:0}
.nav-open .nav-toggle span::after{transform:rotate(-45deg);top:0}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background .18s ease,transform .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 18px rgba(222,122,56,.24)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:rgba(20,96,122,.4);color:var(--primary)}
.btn-ghost:hover{background:rgba(20,96,122,.08)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- hero ---------- */
.cat-hero{
  padding:88px 0 72px;
  background:var(--primary-light);
  border-bottom:1px solid rgba(20,96,122,.1);
}
.crumbs{display:flex;justify-content:center}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.crumbs a{color:var(--muted);border-bottom:1px solid transparent}
.crumbs a:hover{color:var(--primary);border-bottom-color:rgba(20,96,122,.4)}
.crumbs li[aria-current] span{color:var(--primary-dark)}
.crumbs .sep{color:#9AAAB5}
.cat-hero h1{
  max-width:940px;margin:22px auto 0;text-align:center;
  font-size:clamp(30px,4.2vw,44px);line-height:1.2;letter-spacing:-.5px;
}
.hero-sub{max-width:760px;margin:18px auto 0;text-align:center;font-size:17px;color:#40525E}
.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:8px;padding:8px 18px;
  border-radius:999px;background:#fff;border:1px solid rgba(20,96,122,.16);
  font-size:14px;color:var(--primary-dark);box-shadow:0 1px 2px rgba(20,32,43,.04);
}
.tag i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block}
.hero-visual{
  position:relative;margin:38px auto 0;max-width:1040px;
  border-radius:16px;overflow:hidden;box-shadow:var(--shadow-1);
}
.hero-visual img{width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:0}
.visual-card{
  position:absolute;left:22px;bottom:22px;
  background:rgba(255,255,255,.95);border:1px solid rgba(20,96,122,.14);
  border-radius:var(--radius-card);padding:14px 18px;box-shadow:var(--shadow-1);
  max-width:290px;
}
.visual-card strong{display:block;font-size:15px;color:var(--primary-dark);margin-bottom:2px}
.visual-card span{display:block;font-size:13px;color:var(--muted)}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin:0 auto 44px;text-align:center}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3;margin-top:12px}
.section-head p{margin-top:14px;font-size:16px;color:var(--muted)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--primary);letter-spacing:.3px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent)}

/* ---------- alternating rows ---------- */
.alt-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:56px 0;border-bottom:1px solid var(--line);
}
.alt-row:first-child{padding-top:0}
.alt-row:last-child{border-bottom:0;padding-bottom:0}
.alt-media{border-radius:16px;overflow:hidden;box-shadow:var(--shadow-1)}
.alt-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.alt-row.reverse .alt-media{order:2}
.alt-body h2{font-size:clamp(22px,2.4vw,29px);line-height:1.35;margin:14px 0 16px}
.alt-body p{color:#3E4F5C}
.check-list{margin:20px 0 22px}
.check-list li{
  position:relative;padding-left:28px;margin-bottom:12px;
  font-size:16px;line-height:1.8;color:#2C3B47;
}
.check-list li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:9px;height:5px;border-left:2px solid var(--primary);
  border-bottom:2px solid var(--primary);transform:rotate(-45deg);
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--primary);
  border-bottom:1px solid rgba(20,96,122,.35);padding-bottom:2px;
  transition:color .18s ease,border-color .18s ease;
}
.text-link::after{content:"→";transition:transform .18s ease}
.text-link:hover{color:var(--accent);border-bottom-color:rgba(222,122,56,.5)}
.text-link:hover::after{transform:translateX(3px)}

/* ---------- cards ---------- */
.cards-row{margin-left:-12px;margin-right:-12px}
.cards-row>.cell{padding-left:12px;padding-right:12px;margin-bottom:24px}
.dcard{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.dcard:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(20,96,122,.3)}
.dcard img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.dcard-body{padding:18px 20px 0;display:flex;flex-direction:column;flex:1}
.pill{
  display:inline-flex;align-items:center;padding:6px 12px;border-radius:999px;
  font-size:14px;background:var(--primary-light);color:var(--primary-dark);
}
.pill-accent{background:var(--accent-light);color:#A8541F}
.dcard h3{font-size:19px;line-height:1.45;margin:12px 0 8px}
.dcard p{font-size:14px;line-height:1.75;color:var(--muted);margin:0 0 16px}
.dcard-foot{
  margin-top:auto;padding:14px 20px 20px;display:flex;align-items:center;
  justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);
  border-top:1px solid var(--line);
}
.dcard-foot a{font-size:14px;font-weight:600;color:var(--primary)}
.dcard-foot a:hover{color:var(--accent)}
.dcard-wide{display:grid;grid-template-columns:minmax(0,460px) 1fr;height:auto}
.dcard-wide img{aspect-ratio:16/10;height:100%;object-fit:cover}
.dcard-wide .dcard-body{padding:26px 28px 0}
.dcard-wide h3{font-size:21px}
.dcard-wide p{font-size:15px;max-width:62ch}
.dcard-wide .dcard-foot{margin-top:auto}

/* ---------- guarantee ---------- */
.guarantee{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:56px 0}
.g-item{display:flex;align-items:flex-start;gap:14px;padding:6px 4px}
.g-icon{
  width:44px;height:44px;flex:0 0 44px;border-radius:12px;background:var(--primary-light);
  display:inline-flex;align-items:center;justify-content:center;
}
.g-icon svg{width:22px;height:22px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.g-item strong{display:block;font-size:16px;margin-bottom:4px}
.g-item span{display:block;font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- faq ---------- */
.faq{max-width:900px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:12px;overflow:hidden;box-shadow:0 1px 2px rgba(20,32,43,.03);
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:0;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--text);text-align:left;line-height:1.6;
}
.faq-icon{
  position:relative;width:22px;height:22px;flex:0 0 22px;border-radius:50%;
  background:var(--primary-light);transition:transform .3s ease,background .3s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);
  transform:translate(-50%,-50%);transition:transform .3s ease,background .3s ease;
}
.faq-icon::before{width:10px;height:2px;border-radius:2px}
.faq-icon::after{width:2px;height:10px;border-radius:2px}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--accent-light)}
.faq-item.open .faq-icon::before{background:var(--accent)}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);background:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 24px}
.faq-item.open .faq-a{max-height:420px;padding-bottom:22px}
.faq-a p{margin:0;font-size:15px;line-height:1.85;color:#3E4F5C;max-width:68ch}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--primary-light);border:1px solid rgba(20,96,122,.14);
  border-radius:20px;padding:48px;display:grid;grid-template-columns:1fr 240px;
  gap:36px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.32;margin-bottom:14px}
.cta-band p{margin:0 0 24px;color:#3E4F5C;max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-figure{border-radius:16px;overflow:hidden;box-shadow:var(--shadow-1)}
.cta-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:0}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-dark);color:#CBDDE4;padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12)}
.footer-brand .brand-mark svg{stroke:#EAF4F7}
.footer-brand strong{color:#fff;font-size:16px}
.site-footer p{font-size:14px;line-height:1.85;color:#A9C3CD;margin:0}
.site-footer h3{font-size:15px;color:#fff;margin:0 0 16px;font-weight:600}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#C0D6DE;border-bottom:1px solid transparent}
.footer-links a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.5)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#9CB8C2;
}
.footer-bottom a{color:#E4EFF3;border-bottom:1px solid rgba(228,239,243,.4)}
.footer-bottom a:hover{color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-wrap{height:56px}
  .main-nav{
    position:fixed;top:56px;left:0;right:0;bottom:0;z-index:110;
    background:#fff;flex-direction:column;align-items:stretch;
    padding:22px 24px 28px;gap:8px;overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
    border-top:1px solid var(--line);
  }
  .nav-open .main-nav{opacity:1;visibility:visible;transform:none}
  .main-nav a{padding:14px 16px;border-radius:12px;background:var(--bg);font-size:16px}
  .main-nav a.active{background:var(--primary);color:#fff}
  .drawer-cta{display:block;margin-top:auto;padding-top:22px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-search,.nav-side .btn-primary{display:none}
  .cat-hero{padding:64px 0 56px}
  .section{padding:64px 0}
  .alt-row{grid-template-columns:1fr;gap:28px;padding:44px 0}
  .alt-row.reverse .alt-media{order:0}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .cta-figure{max-width:420px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .dcard-wide{grid-template-columns:1fr}
  .dcard-wide img{aspect-ratio:16/9}
}
@media (max-width:767px){
  .brand-text em{display:none}
  .hero-sub{font-size:16px}
  .guarantee{padding:44px 0}
}
@media (max-width:639px){
  .container{padding:0 20px}
  .cat-hero{padding:48px 0 44px}
  .section{padding:48px 0}
  h1{letter-spacing:-.3px}
  .hero-visual img{aspect-ratio:16/10}
  .visual-card{position:static;margin:0;border-radius:0;max-width:none;border-left:0;border-right:0;border-bottom:0}
  .btn{width:100%}
  .cta-actions{flex-direction:column}
  .cards-row{margin-left:-8px;margin-right:-8px}
  .cards-row>.cell{padding-left:8px;padding-right:8px;margin-bottom:16px}
  .faq-q{padding:18px 18px;font-size:16px}
  .faq-a{padding:0 18px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
}