/* roulang page: index */
:root{
  --c-deep:#1F5C7A;
  --c-main:#2A7396;
  --c-soft:#3C8CAF;
  --c-accent:#E08A3C;
  --bg-page:#F6F8FA;
  --bg-card:#FFFFFF;
  --bg-alt:#EDF3F6;
  --line:#E2E9ED;
  --line-strong:#C9D6DD;
  --ink:#0F1E28;
  --ink-2:#33454F;
  --ink-3:#6B7C87;
  --ok:#2F855A;
  --warn:#B7791F;
  --err:#C53030;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,30,40,.05), 0 10px 24px -14px rgba(15,30,40,.14);
  --sh-2:0 2px 4px rgba(15,30,40,.06), 0 18px 36px -18px rgba(15,30,40,.20);
  --sh-3:0 1px 0 rgba(15,30,40,.06), 0 12px 28px -20px rgba(15,30,40,.30);
  --sp-section:96px;
  --t:200ms ease;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg-page);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-main);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-deep)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-main);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sp-section) 0}
.section--alt{background:var(--bg-alt)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:30px;line-height:1.35;font-weight:600;letter-spacing:-.01em}
.section-head .section-sub{font-size:14px;line-height:1.6;color:var(--ink-3);margin-top:10px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--c-main);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--c-main);border-radius:2px}

/* ============ buttons ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:500;padding:12px 24px;border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;transition:transform var(--t),background var(--t),border-color var(--t),color var(--t),box-shadow var(--t)}
.btn-primary{background:var(--c-main);color:#fff;box-shadow:0 10px 22px -16px rgba(31,92,122,.9)}
.btn-primary:hover{background:var(--c-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--c-main);color:var(--c-main);background:var(--bg-page)}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--c-main);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.link-arrow:hover{color:var(--c-deep)}
.link-arrow .arw{transition:transform var(--t)}
.link-arrow:hover .arw{transform:translateX(3px)}

/* ============ badges ============ */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);font-size:13px;line-height:1.5;background:var(--bg-alt);color:var(--c-deep);border:1px solid var(--line)}
.badge--accent{background:rgba(224,138,60,.12);color:#9C5A16;border-color:rgba(224,138,60,.32)}
.tag{display:inline-flex;align-items:center;padding:5px 14px;border-radius:var(--r-pill);font-size:13px;background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.tag:hover{border-color:var(--c-soft);color:var(--c-deep)}

/* ============ header ============ */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;transition:background var(--t),box-shadow var(--t),border-color var(--t)}
.site-header::after{content:"";position:absolute;inset:0;z-index:-1;background:rgba(255,255,255,.62);backdrop-filter:blur(14px) saturate(1.2);-webkit-backdrop-filter:blur(14px) saturate(1.2);border-bottom:1px solid rgba(255,255,255,.55);box-shadow:var(--sh-1);transition:background var(--t),border-color var(--t)}
.site-header.is-stuck::after{background:rgba(255,255,255,.96);border-bottom-color:var(--line);box-shadow:var(--sh-3)}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height var(--t)}
.site-header.is-stuck .nav-inner{height:64px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:600;font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.logo:hover{color:var(--c-deep)}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--c-main);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:15px;font-weight:600;flex:none}
.logo-mark span{display:block;line-height:1}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:8px;font-size:15px;color:var(--ink-2)}
.nav-links a:hover{color:var(--c-deep);background:var(--bg-alt)}
.nav-links a.is-active{color:var(--c-deep);font-weight:500}
.nav-links a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--c-main)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:12px}
.icon-btn{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--line-strong);background:#fff;color:var(--ink-2);cursor:pointer;transition:border-color var(--t),color var(--t)}
.icon-btn:hover{border-color:var(--c-main);color:var(--c-main)}
.nav-cta{padding:10px 20px;font-size:14px}
.menu-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line-strong);background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.menu-toggle i{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.menu-toggle[aria-expanded="true"] i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] i:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer{position:fixed;inset:0;z-index:70;background:#fff;padding:88px 24px 32px;display:none;flex-direction:column;gap:8px;overflow-y:auto}
.drawer.is-open{display:flex}
.drawer-group-title{font-size:13px;color:var(--ink-3);margin:18px 0 6px}
.drawer a{display:block;padding:14px 12px;border-radius:10px;color:var(--ink);font-size:16px;border:1px solid transparent}
.drawer a:hover{background:var(--bg-alt);color:var(--c-deep)}
.drawer .drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--line)}

/* ============ hero ============ */
.hero{position:relative;padding:150px 0 88px;background:var(--bg-page)}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(246,248,250,.85),rgba(246,248,250,0) 46%);pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center}
.hero-copy{grid-column:span 6}
.hero-media{grid-column:span 6}
.hero h1{font-size:40px;line-height:1.25;font-weight:600;letter-spacing:-.01em}
.hero-sub{font-size:17px;line-height:1.75;color:var(--ink-2);margin-top:20px;max-width:34em}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:32px}
.trust-bar{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:28px;padding-top:22px;border-top:1px solid var(--line);font-size:14px;color:var(--ink-3)}
.trust-bar b{color:var(--ink);font-weight:600}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;box-shadow:var(--sh-2)}
.hero-media figcaption{font-size:13px;color:var(--ink-3);margin-top:12px}

/* live band */
.live-band{background:#10222C;color:#C9D6DD}
.live-band .container{display:flex;align-items:center;gap:24px;flex-wrap:wrap;padding-top:16px;padding-bottom:16px}
.live-dot{width:8px;height:8px;border-radius:50%;background:#4FD1A5;box-shadow:0 0 0 4px rgba(79,209,165,.18);flex:none}
.live-band strong{color:#fff;font-weight:600}
.live-items{display:flex;gap:28px;flex-wrap:wrap;font-size:14px;margin-left:auto}
.live-items span{display:inline-flex;align-items:center;gap:8px}
.live-items i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block}

/* ============ services ============ */
.svc-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:box-shadow var(--t),transform var(--t),border-color var(--t)}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--line-strong)}
.svc-main{grid-column:span 6;padding:0;overflow:hidden;display:flex;flex-direction:column}
.svc-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.svc-main .svc-body{padding:28px 28px 32px}
.svc-side-wrap{grid-column:span 6;display:grid;gap:24px}
.svc-side{padding:26px 26px 28px}
.card h3{font-size:20px;line-height:1.5;font-weight:600}
.card .card-sub{font-size:14px;line-height:1.6;color:var(--ink-3);margin-top:8px}
.pt-list{margin-top:18px;display:grid;gap:10px}
.pt-list li{position:relative;padding-left:22px;font-size:15px;line-height:1.7;color:var(--ink-2)}
.pt-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:3px;background:var(--c-soft)}
.svc-side .link-arrow{margin-top:18px;font-size:14px}

/* ============ stats ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1)}
.stat .num{font-size:36px;line-height:1.2;font-weight:600;color:var(--c-deep);letter-spacing:-.02em}
.stat .num small{font-size:16px;font-weight:500;margin-left:4px;color:var(--c-main)}
.stat .lbl{font-size:14px;color:var(--ink-2);margin-top:8px}
.stat .hint{font-size:13px;color:var(--ink-3);margin-top:6px}

/* ============ cases ============ */
.cases{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.case{position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);box-shadow:var(--sh-1);background:#fff;transition:box-shadow var(--t),transform var(--t)}
.case:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.case img{width:100%;aspect-ratio:16/9;object-fit:cover}
.case-overlay{position:absolute;left:0;right:0;bottom:0;padding:52px 22px 20px;background:linear-gradient(180deg,rgba(15,30,40,0),rgba(15,30,40,.55) 62%)}
.case-overlay h3{color:#fff;font-size:18px;line-height:1.5;font-weight:600}
.case-overlay p{color:rgba(255,255,255,.82);font-size:13px;margin-top:6px}
.case--wide{grid-column:span 6}
.case--half{grid-column:span 3}
.case--half .case-overlay h3{font-size:16px}
.case--half img{aspect-ratio:4/5}

/* ============ plans ============ */
.plans{border-top:1px solid var(--line)}
.plan-row{display:grid;grid-template-columns:110px 1fr 40px;gap:24px;align-items:center;padding:28px 20px;border-bottom:1px solid var(--line);transition:background var(--t),transform var(--t)}
.plan-row:hover{background:var(--bg-page);transform:translateX(4px)}
.plan-idx{font-size:36px;line-height:1;font-weight:600;color:var(--line-strong);letter-spacing:-.02em}
.plan-row:hover .plan-idx{color:var(--c-soft)}
.plan-body h3{font-size:20px;font-weight:600;line-height:1.5}
.plan-body p{font-size:15px;color:var(--ink-2);margin-top:8px;max-width:62ch}
.plan-go{width:36px;height:36px;border-radius:50%;border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;color:var(--c-main);background:#fff}
.plan-row:hover .plan-go{border-color:var(--c-main);background:var(--c-main);color:#fff}

/* ============ news ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow var(--t),transform var(--t)}
.news-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.news-card .thumb{display:block;background:var(--bg-alt)}
.news-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-3)}
.news-body h3{font-size:17px;line-height:1.55;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-body h3{color:var(--c-main)}
.news-body .excerpt{font-size:14px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-body .news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:8px}
.empty-state{grid-column:1/-1;background:#fff;border:1px dashed var(--line-strong);border-radius:var(--r-card);padding:56px 24px;text-align:center}
.empty-state .ico{width:56px;height:56px;border-radius:16px;background:var(--bg-alt);color:var(--c-main);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:22px}
.empty-state p{font-size:16px;color:var(--ink-2)}
.empty-state .link-arrow{margin-top:14px}

/* ============ faq ============ */
.faq{max-width:860px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t)}
.faq-item.is-open{border-color:var(--line-strong);box-shadow:var(--sh-1)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;background:none;border:0;cursor:pointer;text-align:left;font-size:17px;font-weight:500;color:var(--ink);position:relative}
.faq-item.is-open .faq-q{color:var(--c-main)}
.faq-item.is-open .faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--c-main)}
.faq-q .chev{flex:none;width:20px;height:20px;color:var(--ink-3);transition:transform 180ms ease}
.faq-item.is-open .faq-q .chev{transform:rotate(180deg);color:var(--c-main)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:42em}
.faq-item.is-open .faq-a{max-height:320px}

/* ============ contact ============ */
.contact-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:start}
.contact-info{grid-column:span 5}
.contact-info h2{font-size:30px;line-height:1.35;font-weight:600}
.contact-info .section-sub{font-size:14px;color:var(--ink-3);margin-top:10px}
.info-list{margin-top:28px;display:grid;gap:18px}
.info-list li{display:flex;gap:14px;align-items:flex-start}
.info-list .ic{width:40px;height:40px;border-radius:10px;background:var(--bg-alt);color:var(--c-deep);display:flex;align-items:center;justify-content:center;flex:none}
.info-list .k{font-size:14px;color:var(--ink-3)}
.info-list .v{font-size:16px;color:var(--ink);font-weight:500}
.form-card{grid-column:span 7;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:30px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1/-1}
.field label{font-size:14px;color:var(--ink-2)}
.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;padding:12px 14px;font-size:15px;font-family:inherit;color:var(--ink);transition:border-color var(--t),box-shadow var(--t)}
.field input{height:44px}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--c-soft);box-shadow:0 0 0 3px rgba(60,140,175,.18)}
.field.has-error input,.field.has-error textarea{border-color:var(--err)}
.field .err-msg{display:none;font-size:13px;color:var(--err)}
.field.has-error .err-msg{display:block}
.captcha{display:flex;gap:12px;align-items:center}
.captcha .box{height:44px;flex:1;border:1px dashed var(--line-strong);border-radius:var(--r-btn);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--ink-3);background:var(--bg-page)}
.form-note{font-size:13px;color:var(--ink-3);margin-top:14px}
.form-alert{display:none;margin-top:16px;padding:12px 14px;border-radius:var(--r-btn);font-size:14px;background:rgba(47,133,90,.10);border:1px solid rgba(47,133,90,.32);color:var(--ok)}
.form-alert.is-visible{display:block}

/* ============ footer ============ */
.site-footer{background:#10222C;color:#C9D6DD;padding:72px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.site-footer h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:16px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo:hover{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:#C9D6DD;max-width:34ch}
.footer-brand .kw{color:#fff;font-weight:500}
.footer-links{display:grid;gap:10px}
.footer-links a{color:#C9D6DD;font-size:14px;display:inline-block;transition:color var(--t)}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}
.footer-contact{display:grid;gap:12px;font-size:14px}
.footer-contact span{color:#fff;font-weight:500}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#9FB3BF}
.footer-bottom a{color:#C9D6DD}
.footer-bottom a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}

/* ============ responsive ============ */
@media (max-width:1279px){
  .hero h1{font-size:36px}
  .live-items{gap:20px}
}
@media (max-width:1023px){
  :root{--sp-section:72px}
  .container{padding:0 24px}
  .nav-links{display:none}
  .nav-cta{display:none}
  .menu-toggle{display:flex}
  .nav-actions{margin-left:auto}
  .hero{padding:130px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-copy,.hero-media{grid-column:1/-1}
  .svc-grid,.cases,.contact-grid{grid-template-columns:1fr}
  .svc-main,.svc-side-wrap,.case--wide,.case--half,.contact-info,.form-card{grid-column:1/-1}
  .case--half img{aspect-ratio:16/9}
  .stats{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:767px){
  :root{--sp-section:48px}
  .container{padding:0 20px}
  .hero{padding:112px 0 52px;min-height:0}
  .hero h1{font-size:28px;line-height:1.3}
  .hero-sub{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch;gap:12px}
  .hero-actions .btn,.hero-actions .link-arrow{width:100%;justify-content:center}
  .trust-bar{gap:12px;font-size:13px}
  .live-items{margin-left:0;gap:14px;font-size:13px}
  .section-head h2,.contact-info h2{font-size:24px}
  .card:hover,.news-card:hover,.case:hover{transform:none}
  .plan-row{grid-template-columns:56px 1fr;gap:16px;padding:22px 12px}
  .plan-row:hover{transform:none}
  .plan-idx{font-size:26px}
  .plan-go{display:none}
  .stats{grid-template-columns:1fr;gap:16px}
  .news-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand p{max-width:none}
  .faq-q{font-size:16px;padding:18px}
  .faq-a p{padding:0 18px 18px}
}
@media (max-width:479px){
  .logo{font-size:15px}
  .logo-mark{width:30px;height:30px;border-radius:9px;font-size:13px}
  .stat .num{font-size:30px}
}

/* roulang page: article */
:root{
  --brand-900:#1F5C7A;
  --brand-700:#2A7396;
  --brand-500:#3C8CAF;
  --accent:#E08A3C;
  --bg:#F6F8FA;
  --bg-alt:#EDF3F6;
  --card:#FFFFFF;
  --line:#E2E9ED;
  --line-strong:#C9D6DD;
  --ink:#0F1E28;
  --ink-2:#33454F;
  --ink-3:#6B7C87;
  --ok:#2F855A;
  --warn:#B7791F;
  --err:#C53030;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,30,40,.05), 0 10px 24px -14px rgba(15,30,40,.14);
  --sh-2:0 2px 4px rgba(15,30,40,.06), 0 18px 36px -18px rgba(15,30,40,.20);
  --sh-3:0 1px 0 rgba(15,30,40,.06), 0 12px 28px -20px rgba(15,30,40,.30);
  --t:200ms cubic-bezier(.4,0,.2,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--brand-700);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--brand-900);}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);}
h1{font-size:40px;line-height:1.25;font-weight:600;letter-spacing:-.01em;}
h2{font-size:30px;line-height:1.35;font-weight:600;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:500;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 1em;padding-left:1.25em;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.container{max-width:var(--container);margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(255,255,255,.62);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  backdrop-filter:blur(14px) saturate(1.2);
  border-bottom:1px solid rgba(255,255,255,.55);
  box-shadow:var(--sh-1);
  transition:background var(--t),box-shadow var(--t),border-color var(--t);
}
.site-header.is-stuck{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-3);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height var(--t);}
.site-header.is-stuck .header-inner{height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:600;font-size:17px;letter-spacing:-.01em;white-space:nowrap;}
.logo:hover{color:var(--brand-900);}
.logo-mark{
  width:34px;height:34px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  display:grid;place-items:center;color:#fff;font-size:12px;font-weight:600;letter-spacing:.04em;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px;flex:1 1 auto;}
.nav-links a{
  position:relative;display:inline-block;padding:8px 12px;border-radius:var(--r-btn);
  color:var(--ink-2);font-size:15px;transition:color var(--t),background var(--t);
}
.nav-links a:hover{color:var(--brand-900);background:var(--bg-alt);}
.nav-links a.is-active{color:var(--brand-900);font-weight:500;}
.nav-links a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-700);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;padding:0;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform var(--t),opacity var(--t);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  padding:12px 24px;font-size:15px;font-weight:500;line-height:1.4;
  transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
}
.btn-primary{background:var(--brand-700);color:#fff;}
.btn-primary:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:#fff;border-color:var(--line-strong);color:var(--ink);}
.btn-ghost:hover{border-color:var(--brand-700);color:var(--brand-700);background:var(--bg);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:500;text-decoration:underline;text-underline-offset:3px;}
.btn-link:hover{color:var(--brand-900);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--bg-alt);color:var(--brand-900);font-size:13px;font-weight:500;line-height:1.5;
}
.badge-accent{background:rgba(224,138,60,.12);color:#A85F1C;}

/* ---------- 文章页首屏条带 ---------- */
.page-hero{
  background:var(--bg-alt);
  padding:132px 0 56px;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px;}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .crumb-current{color:var(--ink-2);}
.page-hero h1{max-width:900px;font-size:38px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:13px;color:var(--ink-3);}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);}

/* ---------- 正文 ---------- */
.article-section{padding:64px 0 96px;}
.article-layout{display:grid;grid-template-columns:minmax(0,760px);justify-content:center;gap:32px;}
.article-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:48px 48px 40px;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{font-size:17px;line-height:1.9;color:var(--ink-2);margin:0 0 1.1em;}
.article-body h2{font-size:26px;line-height:1.4;margin:40px 0 20px;padding-left:12px;border-left:4px solid var(--brand-700);}
.article-body h3{font-size:20px;margin:32px 0 14px;}
.article-body h4{font-size:17px;margin:26px 0 12px;color:var(--ink);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;}
.article-body li{font-size:17px;line-height:1.9;color:var(--ink-2);margin-bottom:.4em;}
.article-body img{margin:12px auto;border-radius:var(--r-img);}
.article-body a{text-decoration:underline;text-underline-offset:3px;}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--bg);border-left:3px solid var(--brand-700);
  border-radius:8px;color:var(--ink-2);
}
.article-body blockquote p{margin:0;font-size:16px;}
.article-body code{
  background:var(--bg-alt);border-radius:6px;padding:2px 6px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--brand-900);
}
.article-body pre{
  background:#10222C;color:#E6EFF3;border-radius:var(--r-img);padding:18px 20px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;color:var(--ink-2);}
.article-body th{background:var(--bg-alt);color:var(--ink);font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line);
}
.article-tags .tags-label{font-size:13px;color:var(--ink-3);}
.tag{
  display:inline-flex;align-items:center;padding:5px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--bg);color:var(--ink-2);font-size:13px;
  transition:border-color var(--t),color var(--t),background var(--t);
}
.tag:hover{border-color:var(--brand-500);color:var(--brand-900);background:#fff;}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:56px 24px;background:var(--bg-alt);border-radius:var(--r-card);
  border:1px dashed var(--line-strong);
}
.empty-state .empty-icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;
  background:#fff;border:1px solid var(--line);display:grid;place-items:center;
  color:var(--brand-700);font-size:20px;font-weight:600;
}
.empty-state p{font-size:18px;color:var(--ink-2);margin-bottom:18px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .sec-sub{margin-top:12px;font-size:14px;line-height:1.6;color:var(--ink-3);}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.card-cover{aspect-ratio:16/9;width:100%;object-fit:cover;border-radius:0;background:var(--bg-alt);}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;line-height:1.5;}
.card-body p{font-size:14px;line-height:1.7;color:var(--ink-3);margin:0;}
.card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);margin-top:auto;padding-top:6px;}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:#10222C;color:#fff;border-radius:var(--r-card);padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:26px;}
.cta-band p{color:#C9D6DD;font-size:14px;margin:10px 0 0;max-width:560px;}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:#10222C;color:#C9D6DD;padding:72px 0 28px;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer .logo{color:#fff;font-size:16px;}
.site-footer .logo:hover{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.7;color:#C9D6DD;margin:16px 0 0;max-width:320px;}
.site-footer .kw{color:#fff;font-weight:500;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#C9D6DD;font-size:14px;text-decoration:none;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#C9D6DD;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8FA5B1;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-hero h1{font-size:34px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:72px 0;}
  .article-body{padding:36px 30px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  h1{font-size:28px;line-height:1.3;}
  h2{font-size:24px;}
  .header-inner{height:64px;gap:12px;}
  .site-header.is-stuck .header-inner{height:60px;}
  .logo{font-size:15px;}
  .logo-mark{width:30px;height:30px;font-size:11px;}
  .nav-toggle{display:flex;}
  .header-actions .btn-primary{display:none;}
  .nav-links{
    position:fixed;top:64px;left:0;right:0;bottom:0;
    display:none;flex-direction:column;align-items:stretch;gap:6px;
    background:#fff;padding:20px;margin:0;overflow-y:auto;box-shadow:var(--sh-3);
  }
  .site-header.nav-open .nav-links{display:flex;}
  .nav-links a{padding:14px 12px;font-size:16px;border-radius:var(--r-btn);}
  .nav-links a.is-active::after{display:none;}
  .nav-links a.is-active{background:var(--bg-alt);}
  .page-hero{padding:112px 0 40px;}
  .page-hero h1{font-size:27px;}
  .article-section{padding:40px 0 64px;}
  .article-body{padding:26px 20px;}
  .article-body p,.article-body li{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin:32px 0 16px;}
  .card-grid{grid-template-columns:1fr;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .cta-band{padding:32px 24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:52px 0 24px;margin-top:64px;}
}
@media (max-width:479px){
  .page-hero h1{font-size:24px;}
  .meta-row{gap:10px;}
  .btn{width:100%;}
  .btn-link{width:auto;}
}

/* roulang page: category1 */
:root{
  --brand-900:#1F5C7A;
  --brand-700:#2A7396;
  --brand-500:#3C8CAF;
  --accent:#E08A3C;
  --bg:#F6F8FA;
  --card:#FFFFFF;
  --bg-2:#EDF3F6;
  --line:#E2E9ED;
  --line-strong:#C9D6DD;
  --ink:#0F1E28;
  --ink-2:#33454F;
  --ink-3:#6B7C87;
  --ok:#2F855A;
  --warn:#B7791F;
  --err:#C53030;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:999px;
  --r-img:12px;
  --sh1:0 1px 2px rgba(15,30,40,.05),0 10px 24px -14px rgba(15,30,40,.14);
  --sh2:0 2px 4px rgba(15,30,40,.06),0 18px 36px -18px rgba(15,30,40,.20);
  --sh3:0 1px 0 rgba(15,30,40,.06),0 12px 28px -20px rgba(15,30,40,.30);
  --t:200ms ease;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-900)}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

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

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  height:72px;
  display:flex;
  align-items:center;
  background:rgba(255,255,255,.62);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  backdrop-filter:blur(14px) saturate(1.2);
  border-bottom:1px solid rgba(255,255,255,.55);
  box-shadow:var(--sh1);
  transition:height var(--t),background var(--t),box-shadow var(--t),border-color var(--t);
}
.site-header.is-scrolled{
  height:64px;
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:var(--sh3);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  width:100%;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  white-space:nowrap;
  letter-spacing:-.01em;
}
.logo:hover{color:var(--brand-900)}
.logo-mark{
  width:32px;height:32px;
  flex:0 0 32px;
  border-radius:9px;
  background:var(--brand-700);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:var(--r-badge);
  font-size:15px;
  color:var(--ink-2);
  transition:color var(--t),background var(--t);
}
.nav-links a:hover{color:var(--brand-900);background:var(--bg-2)}
.nav-links a.is-active{color:var(--brand-900);font-weight:600}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;border-radius:2px;
  background:var(--brand-700);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
}
.icon-btn{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:var(--r-badge);
  border:1px solid var(--line);
  background:rgba(255,255,255,.7);
  color:var(--ink-2);
  cursor:pointer;
  transition:border-color var(--t),color var(--t),background var(--t);
}
.icon-btn:hover{border-color:var(--brand-500);color:var(--brand-900);background:#fff}
.icon-btn svg{width:18px;height:18px;display:block}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:500;
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--brand-700);color:#fff;box-shadow:var(--sh1)}
.btn-primary:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh1)}
.btn-secondary{background:#fff;color:var(--ink);border-color:var(--line-strong)}
.btn-secondary:hover{border-color:var(--brand-700);color:var(--brand-900);background:var(--bg)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand-700);
  font-size:15px;
  font-weight:500;
  text-decoration:underline;
  text-underline-offset:3px;
}
.btn-link:hover{color:var(--brand-900);text-decoration:underline}
.btn-link .arrow{transition:transform var(--t)}
.btn-link:hover .arrow{transform:translateX(3px)}
.btn:focus-visible,
.icon-btn:focus-visible,
a:focus-visible,
.nav-toggle:focus-visible{
  outline:2px solid var(--brand-700);
  outline-offset:2px;
  border-radius:var(--r-btn);
}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:rgba(255,255,255,.8);
  cursor:pointer;
  padding:0;
  place-items:center;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  margin:3px auto;
  border-radius:2px;
  background:var(--ink);
  transition:transform var(--t),opacity var(--t);
}

/* drawer */
.drawer-backdrop{
  position:fixed;
  inset:0;
  background:rgba(15,30,40,.42);
  z-index:90;
  opacity:0;
  transition:opacity var(--t);
}
.drawer-backdrop.is-open{opacity:1}
.mobile-drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(340px,86vw);
  background:#fff;
  z-index:100;
  display:flex;
  flex-direction:column;
  transform:translateX(102%);
  transition:transform 240ms ease;
  box-shadow:-18px 0 40px -24px rgba(15,30,40,.35);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:16px 20px;
  border-bottom:1px solid var(--line);
}
.drawer-body{padding:16px 20px;overflow-y:auto;flex:1}
.drawer-group-title{
  font-size:13px;
  color:var(--ink-3);
  margin:8px 0 8px;
  letter-spacing:.04em;
}
.drawer-nav a{
  display:block;
  padding:12px 14px;
  border-radius:var(--r-btn);
  color:var(--ink-2);
  font-size:15px;
  margin-bottom:4px;
}
.drawer-nav a:hover{background:var(--bg-2);color:var(--brand-900)}
.drawer-nav a.is-active{background:var(--bg-2);color:var(--brand-900);font-weight:600}
.drawer-foot{padding:16px 20px;border-top:1px solid var(--line);background:#fff}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:132px 0 56px;
  background-image:linear-gradient(180deg,rgba(246,248,250,.94) 0%,rgba(246,248,250,.86) 60%,rgba(246,248,250,.92) 100%),url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:var(--line);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand-900)}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb .current{color:var(--ink-2)}
.page-hero h1{
  font-size:40px;
  line-height:1.25;
  max-width:760px;
  letter-spacing:-.01em;
}
.page-hero h1 .h1-brand{color:var(--brand-900)}
.page-hero h1 .h1-tail{display:block;font-size:34px;color:var(--ink);margin-top:6px}
.hero-sub{
  margin-top:18px;
  font-size:17px;
  line-height:1.7;
  color:var(--ink-2);
  max-width:640px;
}
.hero-meta{
  margin-top:28px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-badge);
  font-size:13px;
  background:var(--bg-2);
  color:var(--brand-900);
  border:1px solid var(--line);
}
.badge-accent{background:rgba(224,138,60,.12);color:#B4691F;border-color:rgba(224,138,60,.28)}
.badge-solid{background:var(--brand-900);color:#fff;border-color:var(--brand-900)}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-2)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:30px;line-height:1.35}
.section-head .section-sub{
  margin-top:12px;
  font-size:14px;
  line-height:1.6;
  color:var(--ink-3);
}
.section-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}

/* stat strip */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.stat-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px;
  box-shadow:var(--sh1);
  transition:box-shadow var(--t),transform var(--t);
}
.stat-card:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.stat-value{
  font-size:36px;
  font-weight:600;
  line-height:1.1;
  color:var(--brand-700);
  letter-spacing:-.02em;
}
.stat-value .unit{font-size:18px;color:var(--brand-500);margin-left:4px}
.stat-label{
  margin-top:10px;
  font-size:14px;
  line-height:1.6;
  color:var(--ink-3);
}
.stat-card.is-accent .stat-value{color:var(--accent)}

/* doc layout with sticky aside */
.doc-layout{
  display:grid;
  grid-template-columns:220px minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.doc-aside{
  position:sticky;
  top:96px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px 18px;
  box-shadow:var(--sh1);
}
.doc-aside h3{
  font-size:14px;
  color:var(--ink-3);
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:12px;
}
.doc-aside a{
  display:block;
  padding:9px 12px;
  border-radius:var(--r-btn);
  font-size:14px;
  color:var(--ink-2);
  margin-bottom:2px;
  border-left:2px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.doc-aside a:hover{background:var(--bg-2);color:var(--brand-900);border-left-color:var(--brand-500)}
.doc-aside .aside-note{
  margin-top:16px;
  padding-top:14px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--ink-3);
  line-height:1.6;
}

/* feature cards */
.feature-card{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:40px;
  align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh1);
  padding:28px;
  margin-bottom:24px;
  transition:box-shadow var(--t),transform var(--t);
  scroll-margin-top:100px;
}
.feature-card:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.feature-card:last-child{margin-bottom:0}
.feature-card.reverse .feature-media{order:2}
.feature-media{
  border-radius:var(--r-img);
  overflow:hidden;
  background:var(--bg-2);
  border:1px solid var(--line);
}
.feature-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.feature-body h3{font-size:20px;line-height:1.5;margin-bottom:10px}
.feature-body > p{
  font-size:15px;
  color:var(--ink-2);
  line-height:1.75;
  margin-bottom:16px;
}
.point-list li{
  position:relative;
  padding-left:22px;
  font-size:14px;
  line-height:1.7;
  color:var(--ink-2);
  margin-bottom:8px;
}
.point-list li:last-child{margin-bottom:0}
.point-list li::before{
  content:"";
  position:absolute;
  left:2px;top:9px;
  width:8px;height:8px;
  border-radius:3px;
  background:var(--brand-500);
}
.feature-tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:var(--r-badge);
  background:var(--bg-2);
  color:var(--brand-900);
  font-size:13px;
  margin-bottom:12px;
}

/* table */
.table-scroll{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--card);
  box-shadow:var(--sh1);
}
.spec-table{
  width:100%;
  min-width:760px;
  border-collapse:collapse;
}
.spec-table th{
  background:var(--bg-2);
  text-align:left;
  font-size:14px;
  font-weight:600;
  color:var(--ink-2);
  padding:14px 20px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.spec-table td{
  padding:16px 20px;
  font-size:15px;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
  vertical-align:top;
  line-height:1.7;
}
.spec-table tr:last-child td{border-bottom:0}
.spec-table tbody tr{transition:background var(--t)}
.spec-table tbody tr:hover{background:var(--bg)}
.spec-table .cell-strong{color:var(--ink);font-weight:600}

/* steps */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.step-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 22px;
  box-shadow:var(--sh1);
  transition:box-shadow var(--t),transform var(--t);
}
.step-card:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.step-num{
  font-size:26px;
  font-weight:600;
  color:var(--accent);
  line-height:1;
  letter-spacing:-.02em;
}
.step-card h3{font-size:17px;margin:14px 0 8px;font-weight:600}
.step-card p{font-size:14px;line-height:1.7;color:var(--ink-3)}

/* cta band */
.cta-band{
  background:#10222C;
  border-radius:0;
  padding:72px 0;
  color:#C9D6DD;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
}
.cta-inner h2{
  font-size:28px;
  color:#fff;
  line-height:1.35;
}
.cta-inner p{
  margin-top:12px;
  font-size:15px;
  line-height:1.7;
  color:#C9D6DD;
  max-width:620px;
}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-primary{background:var(--brand-500)}
.cta-band .btn-primary:hover{background:var(--brand-700)}
.cta-band .btn-secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.32)}
.cta-band .btn-secondary:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.6)}

/* ---------- footer ---------- */
.site-footer{
  background:#10222C;
  color:#C9D6DD;
  padding:72px 0 0;
  font-size:14px;
  line-height:1.7;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{color:#fff;font-size:16px;margin-bottom:16px}
.footer-brand p{max-width:320px;color:#C9D6DD}
.footer-brand .kw{color:#fff}
.site-footer h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-links a{
  display:block;
  color:#C9D6DD;
  padding:6px 0;
  border-bottom:2px solid transparent;
  transition:color var(--t),border-color var(--t);
  width:fit-content;
}
.footer-links a:hover{color:#fff;border-bottom-color:#fff}
.footer-contact span{
  display:block;
  padding:6px 0;
  color:#C9D6DD;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;
  font-size:13px;
  color:#9FB3BE;
}

/* utilities */
.mt-24{margin-top:24px}
.mt-40{margin-top:40px}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px}
  .doc-layout{gap:32px;grid-template-columns:200px minmax(0,1fr)}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:grid}
  .section{padding:72px 0}
  .doc-layout{grid-template-columns:minmax(0,1fr)}
  .doc-aside{position:static;display:none}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .page-hero{padding:120px 0 48px}
  .page-hero h1{font-size:34px}
  .page-hero h1 .h1-tail{font-size:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .site-header{height:64px}
  .site-header.is-scrolled{height:60px}
  .logo{font-size:15px}
  .logo-mark{width:28px;height:28px;flex:0 0 28px;font-size:11px}
  .header-actions .btn{display:none}
  .section{padding:48px 0}
  .page-hero{padding:104px 0 40px}
  .page-hero h1{font-size:28px;line-height:1.3}
  .page-hero h1 .h1-tail{font-size:22px;margin-top:8px}
  .hero-sub{font-size:15px}
  .hero-meta{margin-top:22px}
  .hero-meta .btn{width:100%}
  .section-head h2{font-size:24px}
  .section-head-row{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:32px}
  .stat-strip{grid-template-columns:1fr;gap:16px}
  .stat-value{font-size:30px}
  .steps{grid-template-columns:1fr;gap:16px}
  .feature-card{grid-template-columns:minmax(0,1fr);gap:20px;padding:20px}
  .feature-card.reverse .feature-media{order:0}
  .cta-band{padding:52px 0}
  .cta-inner h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .feature-card:hover,.stat-card:hover,.step-card:hover{transform:none}
}
@media (max-width:479px){
  .page-hero h1{font-size:25px}
  .page-hero h1 .h1-tail{font-size:20px}
  .btn{padding:11px 18px;font-size:14px}
}

/* roulang page: category2 */
:root{
  --c-brand-900:#123F55;
  --c-brand-700:#1F5C7A;
  --c-brand-600:#2A7396;
  --c-brand-500:#3C8CAF;
  --c-accent:#E08A3C;
  --c-bg:#F6F8FA;
  --c-card:#FFFFFF;
  --c-soft:#EDF3F6;
  --c-line:#E2E9ED;
  --c-ink:#0F1E28;
  --c-ink-2:#33454F;
  --c-ink-3:#6B7C87;
  --c-ok:#2F855A;
  --c-warn:#B7791F;
  --c-err:#C53030;
  --r-xl:16px;
  --r-lg:14px;
  --r-md:10px;
  --r-sm:8px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,30,40,.05), 0 10px 24px -14px rgba(15,30,40,.14);
  --sh-2:0 2px 4px rgba(15,30,40,.06), 0 18px 36px -18px rgba(15,30,40,.20);
  --sh-3:0 1px 0 rgba(15,30,40,.06), 0 12px 28px -20px rgba(15,30,40,.30);
  --dur:.2s;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-brand-600);text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font:inherit;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--c-brand-500);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px;}
.section-head h2{font-size:30px;line-height:1.35;font-weight:600;letter-spacing:-.01em;}
.section-sub{margin-top:8px;font-size:14px;line-height:1.6;color:var(--c-ink-3);max-width:640px;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;color:var(--c-brand-600);text-decoration:underline;text-underline-offset:3px;white-space:nowrap;}
.link-arrow:hover{color:var(--c-brand-700);}
.link-arrow i{font-size:12px;transition:transform var(--dur) ease;}
.link-arrow:hover i{transform:translateX(3px);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-md);border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1.2;cursor:pointer;
  transition:background var(--dur) ease,color var(--dur) ease,border-color var(--dur) ease,box-shadow var(--dur) ease,transform var(--dur) ease;
}
.btn-primary{background:var(--c-brand-600);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-light{background:#fff;color:var(--c-brand-700);border-color:#fff;}
.btn-light:hover{background:var(--c-soft);color:var(--c-brand-900);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.62);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  backdrop-filter:blur(14px) saturate(1.2);
  border-bottom:1px solid rgba(255,255,255,.55);
  box-shadow:var(--sh-1);
  transition:background var(--dur) ease,box-shadow var(--dur) ease,border-color var(--dur) ease;
}
.site-header.is-scrolled,.site-header.nav-open{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--c-line);
  box-shadow:var(--sh-3);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height var(--dur) ease;}
.site-header.is-scrolled .header-inner{height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:600;color:var(--c-ink);white-space:nowrap;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 32px;
  background:var(--c-brand-700);color:#fff;
  display:grid;place-items:center;font-size:11px;font-weight:600;letter-spacing:.5px;
}
.logo-mark span{line-height:1;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:12px;}
.nav-links a{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:var(--r-sm);
  font-size:15px;color:var(--c-ink-2);
  transition:color var(--dur) ease,background var(--dur) ease;
}
.nav-links a:hover{color:var(--c-brand-700);background:var(--c-soft);}
.nav-links a.is-active{color:var(--c-brand-700);font-weight:600;}
.nav-links a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--c-brand-600);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;position:relative;width:44px;height:44px;
  border:1px solid var(--c-line);border-radius:var(--r-md);background:#fff;cursor:pointer;
}
.nav-toggle::before,.nav-toggle::after{
  content:"";position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:var(--c-ink);
  transition:transform var(--dur) ease;
}
.nav-toggle::before{top:16px;}
.nav-toggle::after{top:26px;}
.site-header.nav-open .nav-toggle::before{transform:translateY(5px) rotate(45deg);}
.site-header.nav-open .nav-toggle::after{transform:translateY(-5px) rotate(-45deg);}

/* ---------- hero ---------- */
.hero{
  position:relative;padding:132px 0 72px;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(246,248,250,.94) 0%,rgba(246,248,250,.88) 52%,rgba(246,248,250,.99) 100%);
}
.hero>.container{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;margin-bottom:18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);
  font-size:13px;color:var(--c-brand-700);box-shadow:var(--sh-1);
}
.hero h1{font-size:40px;line-height:1.25;font-weight:600;letter-spacing:-.01em;}
.hero-brand{display:block;font-size:22px;line-height:1.4;color:var(--c-brand-600);margin-bottom:6px;letter-spacing:0;}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.75;color:var(--c-ink-2);max-width:32em;}
.hero-actions{display:flex;align-items:center;gap:20px;margin-top:28px;flex-wrap:wrap;}
.hero-note{margin-top:20px;font-size:14px;color:var(--c-ink-3);display:flex;align-items:center;gap:8px;}
.hero-note i{color:var(--c-ok);font-size:14px;}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-xl);border:1px solid var(--c-line);box-shadow:var(--sh-2);
}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:8px;
  margin-top:56px;padding:22px 12px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
.stat{text-align:center;padding:0 12px;}
.stat+.stat{border-left:1px solid var(--c-line);}
.stat strong{
  display:block;font-size:34px;line-height:1.2;font-weight:600;color:var(--c-brand-700);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.stat em{font-style:normal;font-size:.5em;margin-left:2px;font-weight:600;}
.stat span{display:block;margin-top:6px;font-size:14px;color:var(--c-ink-3);}

/* ---------- anchor bar ---------- */
.anchor-bar{
  position:sticky;top:64px;z-index:40;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
}
.anchor-inner{display:flex;align-items:center;gap:10px;padding:12px 32px;overflow-x:auto;}
.anchor-label{font-size:13px;color:var(--c-ink-3);white-space:nowrap;padding-right:4px;}
.anchor-chip{
  display:inline-block;padding:7px 16px;border-radius:var(--r-pill);
  background:var(--c-soft);color:var(--c-ink-2);font-size:14px;white-space:nowrap;
  border:1px solid transparent;
  transition:background var(--dur) ease,color var(--dur) ease,border-color var(--dur) ease;
}
.anchor-chip:hover{background:#fff;color:var(--c-brand-700);border-color:var(--c-brand-500);}

/* ---------- industry blocks ---------- */
.industry-block{
  display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;
  padding:40px 0;border-top:1px solid var(--c-line);
  scroll-margin-top:130px;
}
.industry-block:first-of-type{border-top:0;padding-top:0;}
.industry-block.is-reverse .industry-media{order:2;}
.industry-media{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-1);}
.industry-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease;}
.industry-block:hover .industry-media img{transform:scale(1.02);}
.media-caption{
  position:absolute;left:0;right:0;bottom:0;padding:24px 28px;color:#fff;
  background:linear-gradient(180deg,rgba(15,30,40,0) 0%,rgba(15,30,40,.6) 55%,rgba(15,30,40,.78) 100%);
}
.media-caption h3{font-size:20px;line-height:1.5;font-weight:600;}
.media-caption p{margin-top:6px;font-size:14px;line-height:1.6;color:rgba(255,255,255,.86);}
.point-list{display:flex;flex-direction:column;gap:14px;}
.point-list li{position:relative;padding-left:28px;font-size:15px;line-height:1.75;color:var(--c-ink-2);}
.point-list li i{
  position:absolute;left:0;top:5px;
  width:18px;height:18px;border-radius:var(--r-pill);
  background:var(--c-soft);color:var(--c-brand-600);
  font-size:10px;display:grid;place-items:center;
}
.metric-row{display:flex;gap:32px;margin-top:28px;padding-top:22px;border-top:1px dashed var(--c-line);}
.metric strong{
  display:block;font-size:28px;line-height:1.2;font-weight:600;color:var(--c-brand-700);
  font-variant-numeric:tabular-nums;
}
.metric em{font-style:normal;font-size:.52em;margin-left:2px;}
.metric span{display:block;margin-top:4px;font-size:14px;color:var(--c-ink-3);}

/* ---------- timeline ---------- */
.band-soft{background:var(--c-soft);}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:8px;}
.timeline-step{position:relative;padding:0 28px 0 0;}
.timeline-step::before{
  content:"";position:absolute;top:17px;left:44px;right:-6px;height:2px;background:var(--c-line);
}
.timeline-step:last-child::before{display:none;}
.tl-num{
  position:relative;z-index:1;
  width:36px;height:36px;border-radius:var(--r-pill);
  background:#fff;border:2px solid var(--c-brand-500);color:var(--c-brand-700);
  display:grid;place-items:center;font-size:14px;font-weight:600;
  font-variant-numeric:tabular-nums;
}
.timeline-step h3{margin-top:18px;font-size:17px;font-weight:600;}
.timeline-step p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--c-ink-3);}
.tl-tag{
  display:inline-block;margin-top:12px;padding:4px 12px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);font-size:13px;color:var(--c-brand-700);
  font-variant-numeric:tabular-nums;
}

/* ---------- compare table ---------- */
.table-wrap{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow-x:auto;box-shadow:var(--sh-1);
}
table{width:100%;min-width:720px;border-collapse:collapse;}
thead th{
  padding:16px 24px;background:var(--c-soft);
  font-size:14px;font-weight:600;color:var(--c-ink-2);text-align:left;white-space:nowrap;
}
tbody td{padding:18px 24px;border-top:1px solid var(--c-line);font-size:15px;color:var(--c-ink-2);}
tbody tr{transition:background var(--dur) ease;}
tbody tr:hover{background:var(--c-bg);}
tbody td:first-child{color:var(--c-ink);font-weight:600;}
.tag{
  display:inline-block;padding:3px 12px;border-radius:var(--r-pill);
  font-size:13px;background:var(--c-soft);color:var(--c-brand-700);
}
.tag-accent{background:rgba(224,138,60,.14);color:#96541B;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- voices ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.voice-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform var(--dur) ease,box-shadow var(--dur) ease;
}
.voice-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.voice-card .quote{font-size:15px;line-height:1.8;color:var(--c-ink-2);}
.voice-meta{display:flex;align-items:center;gap:12px;margin-top:22px;padding-top:18px;border-top:1px solid var(--c-line);}
.avatar{
  width:36px;height:36px;flex:0 0 36px;border-radius:var(--r-pill);
  background:var(--c-brand-700);color:#fff;display:grid;place-items:center;
  font-size:13px;font-weight:600;
}
.voice-meta strong{display:block;font-size:14px;font-weight:600;color:var(--c-ink);}
.voice-meta span{display:block;font-size:13px;color:var(--c-ink-3);}

/* ---------- faq ---------- */
.faq{max-width:860px;margin:0 auto;}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--c-line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;
  transition:box-shadow var(--dur) ease,border-color var(--dur) ease;
}
.faq-item:hover{box-shadow:var(--sh-1);}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-brand-600);
  transform:scaleY(0);transform-origin:top;transition:transform .18s ease;
}
.faq-item.is-open::before{transform:scaleY(1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 24px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color .18s ease;
}
.faq-item.is-open .faq-q{color:var(--c-brand-700);}
.faq-icon{transition:transform .18s ease;font-size:13px;color:var(--c-brand-500);}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;}
.faq-a-inner{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--c-ink-2);}

/* ---------- cta ---------- */
.cta-band{
  background:var(--c-brand-700);border-radius:var(--r-xl);
  padding:48px;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start;
  box-shadow:var(--sh-2);
}
.cta-copy h2{font-size:30px;line-height:1.35;font-weight:600;color:#fff;}
.cta-copy p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.84);max-width:30em;}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:10px;}
.cta-points li{position:relative;padding-left:24px;font-size:14px;color:rgba(255,255,255,.9);}
.cta-points li i{position:absolute;left:0;top:4px;font-size:12px;color:var(--c-accent);}
.cta-form{background:#fff;border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-2);}
.field{margin-bottom:16px;}
.field label{display:block;margin-bottom:6px;font-size:14px;color:var(--c-ink-2);}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--c-line);border-radius:var(--r-md);
  background:#fff;font-size:15px;line-height:1.5;
  transition:border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.field input,.field select{height:44px;padding:0 14px;}
.field textarea{resize:vertical;min-height:96px;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-brand-500);box-shadow:0 0 0 3px rgba(60,140,175,.18);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-tip{margin-top:14px;font-size:13px;color:var(--c-ink-3);}
.form-ok{
  display:none;margin-top:14px;padding:10px 14px;border-radius:var(--r-md);
  background:rgba(47,133,90,.10);border:1px solid rgba(47,133,90,.28);
  color:var(--c-ok);font-size:14px;
}
.form-ok.is-show{display:block;}

/* ---------- footer ---------- */
.site-footer{background:#10222C;color:#C9D6DD;padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.site-footer .logo{color:#fff;font-size:17px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#9FB4BF;max-width:34em;}
.footer-brand .kw{color:#fff;}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#C9D6DD;transition:color var(--dur) ease;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#9FB4BF;}
.footer-bottom{
  margin-top:48px;padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA6B2;
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .hero h1{font-size:36px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .nav-links{
    position:fixed;top:64px;left:0;right:0;display:none;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:12px 20px 20px;margin-left:0;
    background:#fff;border-bottom:1px solid var(--c-line);box-shadow:var(--sh-3);
  }
  .site-header.nav-open .nav-links{display:flex;}
  .nav-links a{padding:12px 14px;font-size:16px;border-radius:var(--r-sm);}
  .nav-links a.is-active::after{display:none;}
  .nav-links a.is-active{background:var(--c-soft);}
  .nav-toggle{display:block;}
  .hero{padding:120px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{order:-1;}
  .hero-stats{grid-template-columns:repeat(3,1fr);}
  .industry-block{grid-template-columns:1fr;gap:28px;padding:32px 0;}
  .industry-block.is-reverse .industry-media{order:0;}
  .timeline{grid-template-columns:repeat(2,1fr);gap:32px 0;}
  .timeline-step:nth-child(2n)::before{display:none;}
  .timeline-step{padding-right:20px;}
  .voice-grid{grid-template-columns:1fr 1fr;}
  .cta-band{grid-template-columns:1fr;gap:32px;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .section-head h2{font-size:24px;}
  .header-inner{height:64px;}
  .logo{font-size:15px;}
  .logo-mark{width:28px;height:28px;flex:0 0 28px;font-size:10px;}
  .header-actions .btn-sm{padding:9px 14px;font-size:13px;}
  .hero{padding:104px 0 40px;}
  .hero h1{font-size:28px;line-height:1.3;}
  .hero-brand{font-size:17px;}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;gap:14px;}
  .hero-actions .btn{width:100%;}
  .hero-actions .link-arrow{justify-content:center;}
  .hero-stats{grid-template-columns:1fr;gap:0;padding:8px 0;}
  .stat{padding:14px 16px;}
  .stat+.stat{border-left:0;border-top:1px solid var(--c-line);}
  .stat strong{font-size:28px;}
  .anchor-inner{padding:10px 20px;}
  .timeline{grid-template-columns:1fr;gap:24px;}
  .timeline-step{padding-right:0;}
  .timeline-step::before{display:none;}
  .voice-grid{grid-template-columns:1fr;}
  .voice-card:hover,.industry-block:hover .industry-media img{transform:none;}
  .cta-band{padding:26px 20px;}
  .cta-copy h2{font-size:24px;}
  .cta-form{padding:20px;}
  .form-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:479px){
  .hero h1{font-size:25px;}
  .anchor-label{display:none;}
}

/* roulang page: category3 */
:root{
  --c-900:#1F5C7A;
  --c-600:#2A7396;
  --c-400:#3C8CAF;
  --c-accent:#E08A3C;
  --bg-page:#F6F8FA;
  --bg-card:#FFFFFF;
  --bg-alt:#EDF3F6;
  --line:#E2E9ED;
  --line-strong:#C9D6DD;
  --ink:#0F1E28;
  --ink-2:#33454F;
  --ink-3:#6B7C87;
  --ok:#2F855A;
  --warn:#B7791F;
  --err:#C53030;
  --footer-bg:#10222C;
  --footer-ink:#C9D6DD;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,30,40,.05), 0 10px 24px -14px rgba(15,30,40,.14);
  --sh-2:0 2px 4px rgba(15,30,40,.06), 0 18px 36px -18px rgba(15,30,40,.20);
  --sh-3:0 1px 0 rgba(15,30,40,.06), 0 12px 28px -20px rgba(15,30,40,.30);
  --t-fast:160ms ease;
  --t-base:200ms ease;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg-page);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-600);text-decoration:none;transition:color var(--t-fast),background-color var(--t-fast),border-color var(--t-fast)}
a:hover{color:var(--c-900)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;letter-spacing:-.01em}
h1{font-size:40px;line-height:1.25}
h2{font-size:30px;line-height:1.35}
h3{font-size:20px;line-height:1.5}
h4{font-size:17px;line-height:1.5;font-weight:500}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
input,textarea{font:inherit}
:focus-visible{outline:2px solid var(--c-600);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--c-400);margin-bottom:12px}
.section-head h2{margin-bottom:12px}
.section-head .lead{font-size:14px;line-height:1.6;color:var(--ink-3)}
.section-head .lead strong{color:var(--c-900);font-weight:600}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1.2;white-space:nowrap;
  transition:background-color var(--t-base),color var(--t-base),border-color var(--t-base),box-shadow var(--t-base),transform var(--t-base);
}
.btn-primary{background:var(--c-600);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-900);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--c-900);border-color:var(--c-600);background:var(--bg-page)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-600);font-size:15px;font-weight:500;text-decoration:underline;text-underline-offset:3px}
.link-arrow:hover{color:var(--c-900)}
.link-arrow .chev{transition:transform var(--t-fast)}
.link-arrow:hover .chev{transform:translateX(3px)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:60;
  background:rgba(255,255,255,.62);
  backdrop-filter:blur(14px) saturate(1.2);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  border-bottom:1px solid rgba(255,255,255,.55);
  box-shadow:var(--sh-1);
  transition:background-color var(--t-base),box-shadow var(--t-base),border-color var(--t-base);
}
.site-header.is-scrolled{background:rgba(255,255,255,.96);border-bottom-color:var(--line);box-shadow:var(--sh-3)}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height var(--t-base)}
.site-header.is-scrolled .nav-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:600;font-size:16px;flex:0 0 auto}
.logo:hover{color:var(--c-900)}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:var(--c-900);color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;padding:10px 14px;border-radius:8px;font-size:15px;color:var(--ink-2);
  transition:color var(--t-fast),background-color var(--t-fast);
}
.nav-links a:hover{color:var(--c-900);background:var(--bg-alt)}
.nav-links a.is-active{color:var(--c-900);font-weight:600}
.nav-links a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--c-600);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-icon-btn{
  width:38px;height:38px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-2);border:1px solid transparent;transition:background-color var(--t-fast),color var(--t-fast)
}
.nav-icon-btn:hover{background:var(--bg-alt);color:var(--c-900)}
.hamburger{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;color:var(--ink);
}
.hamburger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.mobile-drawer{
  border-top:1px solid var(--line);background:#fff;padding:20px 32px 28px;
  box-shadow:var(--sh-3);
}
.mobile-drawer nav{display:grid;gap:6px;margin-bottom:18px}
.mobile-drawer nav a{padding:12px 14px;border-radius:10px;color:var(--ink-2);font-size:16px;background:var(--bg-page)}
.mobile-drawer nav a.is-active{color:var(--c-900);font-weight:600;background:var(--bg-alt)}
.drawer-meta{font-size:14px;color:var(--ink-3);margin-bottom:16px}

/* ============ Hero ============ */
.page-hero{
  position:relative;padding:150px 0 76px;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(246,248,250,.94) 0%,rgba(246,248,250,.86) 55%,rgba(246,248,250,.96) 100%);
}
.page-hero .container{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--c-900)}
.crumbs .sep{opacity:.6}
.page-hero h1{max-width:760px;margin-bottom:16px}
.page-hero .hero-sub{max-width:620px;font-size:17px;color:var(--ink-2);margin-bottom:28px}
.hero-search{
  display:flex;gap:10px;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:10px;box-shadow:var(--sh-1);max-width:640px;
}
.hero-search input{
  flex:1 1 auto;height:44px;border:1px solid transparent;background:transparent;
  padding:0 12px;border-radius:var(--r-input);color:var(--ink);min-width:0;
}
.hero-search input::placeholder{color:var(--ink-3)}
.hero-search input:focus{outline:none;border-color:var(--c-400);box-shadow:0 0 0 3px rgba(60,140,175,.18)}
.search-hint{font-size:13px;color:var(--c-900);margin:12px 0 0;min-height:20px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--ink-2);background:#fff;border:1px solid var(--line);
}
.tag:hover{color:var(--c-900);border-color:var(--c-400);background:var(--bg-alt)}

/* ============ 支持通道 ============ */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:box-shadow var(--t-base),transform var(--t-base),border-color var(--t-base);
}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#D6E2E9}
.card h3{margin-bottom:10px}
.card p{font-size:15px;color:var(--ink-2);margin-bottom:14px}
.card-icon{
  width:44px;height:44px;border-radius:12px;background:var(--bg-alt);color:var(--c-900);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.card-meta{font-size:13px;color:var(--ink-3);display:flex;flex-direction:column;gap:6px}
.card-meta .badge{color:var(--c-900);background:var(--bg-alt)}
.badge{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:500;letter-spacing:.01em;
}
.badge-accent{background:rgba(224,138,60,.14);color:#A55E1C}
.badge-ok{background:rgba(47,133,90,.12);color:var(--ok)}

/* ============ 分组目录 ============ */
.group-list{border-top:1px solid var(--line)}
.group-row{
  display:grid;grid-template-columns:260px minmax(0,1fr);gap:32px;
  padding:28px 0;border-bottom:1px solid var(--line);
}
.group-row .group-name{display:flex;flex-direction:column;gap:8px}
.group-index{font-size:13px;letter-spacing:.14em;color:var(--c-400);font-weight:600}
.group-name h3{font-size:18px}
.group-name .group-note{font-size:13px;line-height:1.6;color:var(--ink-3)}
.item-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 24px}
.item-list a{
  display:flex;gap:10px;align-items:flex-start;padding:9px 12px;border-radius:8px;
  font-size:15px;color:var(--ink-2);transition:background-color var(--t-fast),color var(--t-fast),transform var(--t-fast);
}
.item-list a::before{content:"›";color:var(--c-400);font-size:16px;line-height:1.6}
.item-list a:hover{background:var(--bg-alt);color:var(--c-900);transform:translateX(4px)}

/* ============ 流程时间线 ============ */
.flow-wrap{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:center}
.flow-steps{display:grid;gap:0;counter-reset:step}
.flow-step{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:18px;align-items:start;
  padding:20px 0;border-bottom:1px dashed var(--line);
}
.flow-step:last-child{border-bottom:0}
.flow-step .num{
  font-size:26px;font-weight:600;color:var(--c-400);line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.flow-step h4{margin-bottom:6px;font-weight:600;font-size:17px}
.flow-step p{font-size:15px;color:var(--ink-2);margin:0}
.flow-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);background:var(--bg-alt)}
.flow-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card)}
.flow-media figcaption{font-size:13px;color:var(--ink-3);padding:12px 16px;background:#fff;border-top:1px solid var(--line)}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto;display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  transition:border-color var(--t-base),box-shadow var(--t-base);
}
.faq-item[open]{border-left:3px solid var(--c-600);box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 22px;display:flex;align-items:center;gap:16px;
  font-size:17px;font-weight:500;color:var(--ink);transition:color var(--t-base);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item[open] summary{color:var(--c-900)}
.faq-item summary .icon{
  margin-left:auto;flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line-strong);display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-600);transition:transform 180ms ease,border-color var(--t-base);
}
.faq-item[open] summary .icon{transform:rotate(180deg);border-color:var(--c-600)}
.faq-item summary:hover{color:var(--c-900)}
.faq-body{padding:0 22px 22px;font-size:15px;color:var(--ink-2);max-width:74ch}
.faq-body ol{list-style:decimal;padding-left:20px;display:grid;gap:6px}
.faq-body ol li{padding-left:2px}
.faq-body .note{font-size:13px;color:var(--ink-3);margin-top:12px}

/* ============ CTA ============ */
.cta-band{
  background:var(--c-900);color:#fff;border-radius:0;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:rgba(60,140,175,.28);
}
.cta-inner{
  position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;padding:56px 0;
}
.cta-inner h2{color:#fff;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15px;max-width:600px;margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-primary{background:var(--c-accent);color:#3A1F08}
.cta-band .btn-primary:hover{background:#EF9A4A;color:#2F1806}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer-bg);color:var(--footer-ink);padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo:hover{color:#fff}
.footer-brand .logo-mark{background:var(--c-600)}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--footer-ink);max-width:340px}
.footer-brand .kw{color:#fff;font-weight:600}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px;font-weight:600}
.footer-links{display:grid;gap:10px}
.footer-links a{color:var(--footer-ink);font-size:14px;text-decoration:none;border-bottom:2px solid transparent;width:fit-content;transition:color var(--t-fast),border-color var(--t-fast)}
.footer-links a:hover{color:#fff;border-bottom-color:#fff}
.footer-contact{display:grid;gap:10px;font-size:14px;color:var(--footer-ink)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(201,214,221,.86);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 28px}
  .section{padding:80px 0}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .hamburger{display:inline-flex}
  .nav-actions .nav-icon-btn{display:none}
  h1{font-size:32px}
  h2{font-size:26px}
  .section{padding:72px 0}
  .channel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .group-row{grid-template-columns:1fr;gap:16px}
  .item-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-wrap{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  body{font-size:15.5px}
  h1{font-size:28px;line-height:1.3}
  h2{font-size:23px}
  .section{padding:48px 0}
  .page-hero{padding:120px 0 52px}
  .page-hero .hero-sub{font-size:16px}
  .hero-search{flex-direction:column;align-items:stretch}
  .hero-search .btn{width:100%}
  .channel-grid,.item-list,.footer-grid{grid-template-columns:1fr}
  .card:hover{transform:none}
  .cta-inner{padding:44px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;gap:8px}
  .item-list a:hover{transform:none}
}
@media (max-width:479px){
  .logo-text{font-size:15px}
  .card{padding:20px}
  .faq-item summary{padding:16px 16px;font-size:16px;gap:12px}
  .faq-body{padding:0 16px 18px}
}