/* roulang page: index */
:root{
  --brand:#0E3B34;
  --brand-2:#145C4C;
  --signal:#D8FF4A;
  --accent:#FF7A45;
  --paper:#F5F4EF;
  --paper-2:#FFFFFF;
  --ink:#101314;
  --ink-2:#3A4144;
  --muted:#6E7673;
  --line:#E3E1D8;
  --line-dark:rgba(255,255,255,.12);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --shadow:0 1px 2px rgba(16,19,20,.04);
  --shadow-hover:0 18px 40px -18px rgba(14,59,52,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink-2);
  font-size:16px;
  line-height:1.85;
  padding-bottom:76px;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(216,255,74,.55);color:var(--ink)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){ .container{padding:0 32px} }
.section{padding:72px 0}
@media (min-width:1024px){ .section{padding:104px 0} }
.section-dark{background:var(--brand);color:rgba(255,255,255,.86)}
.section-soft{background:#EFEDE4}
.col-text{max-width:760px}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);font-weight:600;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);display:block}
.section-title{
  position:relative;padding-left:16px;margin:14px 0 0;
  font-size:clamp(1.6rem,3.4vw,2.4rem);font-weight:700;line-height:1.22;
  color:var(--ink);letter-spacing:-.01em;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:26px;
  background:var(--brand);border-radius:2px;
}
.section-dark .section-title{color:#fff}
.section-dark .section-title::before{background:var(--signal)}
.section-desc{margin-top:18px;max-width:720px;color:var(--muted);font-size:16px}
.section-dark .section-desc{color:rgba(255,255,255,.72)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;border-bottom:1px solid rgba(14,59,52,.25);
  padding-bottom:2px;transition:color .18s var(--ease),border-color .18s var(--ease);
}
.text-link .arrow{transition:transform .18s var(--ease)}
.text-link:hover{color:var(--accent);border-color:rgba(255,122,69,.5)}
.text-link:hover .arrow{transform:translateX(4px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 2px var(--paper),0 0 0 4px rgba(14,59,52,.4)}
.btn-primary{background:var(--signal);color:var(--ink);border-color:var(--signal)}
.btn-primary:hover{background:#CDEE45;border-color:#CDEE45;transform:translateY(-1px)}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-outline:hover{background:rgba(14,59,52,.06);transform:translateY(-1px)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost-light:hover{background:rgba(255,255,255,.1);border-color:#fff;transform:translateY(-1px)}
.btn-lg{height:54px;padding:0 28px;font-size:16px}
.btn-sm{height:40px;padding:0 16px;font-size:14px}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:60;
  background:rgba(245,244,239,0);
  border-bottom:1px solid transparent;
  transition:background-color .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(245,244,239,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:78px;transition:height .25s var(--ease)}
.site-header.is-scrolled .header-inner{height:66px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink)}
.logo-mark{color:var(--brand);flex:none}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em}
.main-nav{display:none;align-items:center;gap:6px}
@media (min-width:1024px){ .main-nav{display:flex} }
.nav-link{
  position:relative;padding:8px 14px;border-radius:8px;font-size:15px;color:var(--ink-2);
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav-link:hover{color:var(--brand);background:rgba(14,59,52,.06)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--signal);border-radius:2px;
}
.header-cta{display:none}
@media (min-width:1024px){ .header-cta{display:inline-flex} }

/* ---------- Hero ---------- */
.hero{position:relative;isolation:isolate;overflow:hidden;padding:150px 0 84px;min-height:640px;display:flex;align-items:center}
@media (min-width:1024px){ .hero{padding:190px 0 120px;min-height:720px} }
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:-2;filter:saturate(.85)}
.hero-veil{position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(14,59,52,.92) 0%,rgba(14,59,52,.82) 55%,rgba(16,19,20,.88) 100%)}
.hero-inner{position:relative;color:#fff;max-width:900px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  font-size:12px;letter-spacing:.12em;color:#EAF3EE;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--signal)}
.hero-title{
  margin:22px 0 0;font-size:clamp(2.2rem,6vw,4.2rem);font-weight:800;
  line-height:1.08;letter-spacing:-.02em;color:#fff;
}
.hero-sub{margin-top:20px;font-size:clamp(1rem,2vw,1.18rem);color:rgba(255,255,255,.82);max-width:640px}
.hero-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px}
.trust-row{margin-top:44px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 20px;max-width:760px}
@media (min-width:768px){ .trust-row{grid-template-columns:repeat(4,minmax(0,1fr))} }
.trust-item{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.85)}
.trust-item svg{flex:none;color:var(--signal)}

/* ---------- 卖点三连 ---------- */
.points{display:grid;grid-template-columns:1fr;gap:28px;margin-top:52px}
@media (min-width:900px){ .points{grid-template-columns:repeat(3,minmax(0,1fr));gap:32px} }
.point{position:relative;padding:26px 0 0;border-top:1px solid var(--line)}
.point:nth-child(2){}
@media (min-width:900px){
  .point:nth-child(2){transform:translateY(28px)}
  .point:nth-child(3){transform:translateY(8px)}
}
.point-num{
  font-size:clamp(28px,5vw,40px);font-weight:800;line-height:1;
  color:var(--brand);letter-spacing:-.03em;font-variant-numeric:tabular-nums;
}
.point-line{width:40px;height:2px;background:var(--signal);margin:16px 0 18px;border-radius:2px}
.point h3{font-size:18px;font-weight:600;color:var(--ink);line-height:1.4}
.point p{margin-top:10px;font-size:15px;color:var(--muted);max-width:340px}

/* ---------- 场景图文 ---------- */
.scene{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;padding:40px 0;border-bottom:1px solid var(--line)}
.scene:last-child{border-bottom:0}
@media (min-width:900px){
  .scene{grid-template-columns:1fr 1fr;gap:56px;padding:52px 0}
  .scene.reverse .scene-media{order:2}
}
.scene-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:var(--paper-2)}
.scene-media img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:saturate(.92);transition:transform .35s var(--ease)}
.scene-media:hover img{transform:scale(1.03)}
.scene-body h3{font-size:clamp(1.2rem,2.4vw,1.55rem);font-weight:700;color:var(--ink);line-height:1.35}
.scene-body p{margin-top:14px;color:var(--muted);font-size:15.5px}
.scene-list{margin-top:18px;display:grid;gap:10px}
.scene-list li{position:relative;padding-left:18px;font-size:15px;color:var(--ink-2)}
.scene-list li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;background:var(--brand);border-radius:1px}
.scene-body .text-link{margin-top:20px}

/* ---------- 核对清单 ---------- */
.check-wrap{display:grid;grid-template-columns:1fr;gap:32px;margin-top:48px}
@media (min-width:1024px){ .check-wrap{grid-template-columns:1.25fr 1fr;gap:48px;align-items:start} }
.check-table{border:1px solid var(--line);border-radius:var(--r-card);background:var(--paper-2);overflow:hidden}
.check-row{display:grid;grid-template-columns:1fr;gap:6px;padding:18px 20px;border-bottom:1px solid var(--line)}
.check-row:last-child{border-bottom:0}
@media (min-width:640px){ .check-row{grid-template-columns:130px 1fr 1fr;gap:16px;align-items:baseline} }
.check-row strong{font-size:14px;color:var(--ink);font-weight:600}
.check-row span{font-size:14.5px;color:var(--muted)}
.check-row .fix{color:var(--brand-2);font-weight:500}
.check-head{background:rgba(14,59,52,.05)}
.check-head span{font-size:12px;letter-spacing:.1em;color:var(--brand);font-weight:600}
@media (max-width:639px){ .check-head{display:none} }

.form-card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--shadow)}
.form-card h3{font-size:19px;font-weight:700;color:var(--ink)}
.form-card .hint{margin-top:8px;font-size:14px;color:var(--muted)}
.form-grid{margin-top:22px;display:grid;gap:16px}
@media (min-width:640px){ .form-grid{grid-template-columns:1fr 1fr} .form-grid .full{grid-column:span 2} }
.field label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:8px;letter-spacing:.04em}
.field input,.field select{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#FCFBF8;color:var(--ink);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.field input:hover,.field select:hover{border-color:#CFCDC2}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(14,59,52,.25);background:#fff;
}
.form-actions{margin-top:22px;display:grid;gap:12px}
@media (min-width:640px){ .form-actions{grid-template-columns:auto 1fr;align-items:center} }
.form-note{font-size:12.5px;color:var(--muted)}
.form-note.is-error{color:var(--accent)}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:18px;margin-top:44px}
@media (min-width:900px){ .news-grid{grid-template-columns:1.3fr 1fr 1fr;gap:22px} }
.news-card{
  display:flex;gap:16px;background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px;box-shadow:var(--shadow);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease);
}
.news-card:hover{border-color:rgba(14,59,52,.3);box-shadow:var(--shadow-hover);transform:translateY(-1px)}
.news-card:focus-visible{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,59,52,.2)}
.news-thumb{width:96px;height:72px;flex:none;border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.news-thumb img{width:100%;height:100%;object-fit:cover;filter:saturate(.95);transition:transform .35s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{min-width:0;display:flex;flex-direction:column;gap:8px}
.news-title{font-size:17px;font-weight:600;color:var(--ink);line-height:1.45}
.news-sum{
  font-size:14px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:auto;font-size:12.5px;color:var(--muted)}
.news-date{color:var(--muted);font-variant-numeric:tabular-nums}
@media (min-width:900px){
  .news-card--lead{grid-row:span 2;flex-direction:column;padding:20px}
  .news-card--lead .news-thumb{width:100%;height:210px}
  .news-card--lead .news-title{font-size:20px}
  .news-card--lead .news-sum{-webkit-line-clamp:3}
}
.badge{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;background:rgba(255,122,69,.14);color:#B34A1D;font-weight:500;
}
.badge-brand{background:rgba(14,59,52,.08);color:var(--brand)}
.empty-state{
  margin-top:44px;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:44px 20px;text-align:center;background:rgba(255,255,255,.6);
}
.empty-state p{color:var(--muted);font-size:15px}
.empty-state .btn{margin-top:20px}
.more-row{margin-top:34px;display:flex;justify-content:center}

/* ---------- 社会认同 ---------- */
.stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 20px;margin-top:48px}
@media (min-width:900px){ .stats{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px} }
.stat{border-top:1px solid var(--line-dark);padding-top:20px}
.stat-num{font-size:clamp(2rem,4.4vw,2.9rem);font-weight:800;line-height:1;color:var(--signal);font-variant-numeric:tabular-nums;letter-spacing:-.03em}
.stat-label{margin-top:10px;font-size:13px;color:rgba(255,255,255,.75)}
.quotes{display:grid;grid-template-columns:1fr;gap:18px;margin-top:44px}
@media (min-width:900px){ .quotes{grid-template-columns:repeat(3,minmax(0,1fr))} }
.quote{
  background:rgba(255,255,255,.05);border:1px solid var(--line-dark);border-radius:var(--r-card);
  padding:24px 22px;transition:background-color .2s var(--ease),transform .2s var(--ease);
}
.quote:hover{background:rgba(255,255,255,.09);transform:translateY(-2px)}
.quote-mark{font-size:30px;line-height:1;color:var(--signal);font-weight:800}
.quote p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.86)}
.quote footer{margin-top:18px;font-size:12.5px;color:rgba(255,255,255,.62);letter-spacing:.04em}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:28px;margin-top:44px}
@media (min-width:1024px){ .faq-wrap{grid-template-columns:0.8fr 1.6fr;gap:56px;align-items:start} }
.faq-aside p{margin-top:16px;font-size:15px;color:var(--muted);max-width:360px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 4px;color:var(--ink);font-size:16.5px;font-weight:600;line-height:1.5;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-q:focus-visible{outline:none;box-shadow:0 0 0 2px rgba(14,59,52,.3);border-radius:8px}
.faq-num{font-size:12.5px;color:var(--accent);font-variant-numeric:tabular-nums;flex:none;letter-spacing:.06em}
.faq-text{flex:1}
.faq-icon{position:relative;width:16px;height:16px;flex:none}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .22s var(--ease),opacity .22s var(--ease)}
.faq-item.is-open .faq-a{max-height:360px;opacity:1}
.faq-a p{padding:0 4px 22px 32px;font-size:15px;color:var(--muted);line-height:1.85;max-width:680px}

/* ---------- 结尾 CTA ---------- */
.cta-block{text-align:center;max-width:760px;margin:0 auto}
.cta-block h2{font-size:clamp(1.6rem,3.4vw,2.3rem);font-weight:800;color:#fff;line-height:1.25;letter-spacing:-.01em}
.cta-block p{margin-top:18px;color:rgba(255,255,255,.75);font-size:16px}
.cta-actions{margin-top:32px;display:flex;flex-wrap:wrap;justify-content:center;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E3B34;color:rgba(255,255,255,.72);padding:64px 0 96px}
@media (min-width:1024px){ .site-footer{padding:72px 0 40px} }
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){ .footer-grid{grid-template-columns:1fr 1fr} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px} }
.footer-brand .logo{color:#fff}
.footer-brand .logo-mark{color:var(--signal)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px}
.footer-col h4{font-size:13px;letter-spacing:.12em;color:#fff;font-weight:600;margin-bottom:16px}
.footer-col li{margin-bottom:2px}
.footer-col a{display:block;padding:9px 0;font-size:14px;color:rgba(255,255,255,.7);transition:color .18s var(--ease),padding-left .18s var(--ease)}
.footer-col a:hover{color:var(--signal);padding-left:4px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:12.5px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7);border-bottom:1px solid rgba(255,255,255,.25)}
.footer-bottom a:hover{color:var(--signal)}

/* ---------- 移动底部 Tab ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:60px;padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  display:grid;grid-template-columns:repeat(5,1fr);align-items:center;
}
@media (min-width:1024px){ .tabbar{display:none} }
.tab{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  height:100%;font-size:11px;color:var(--muted);position:relative;
  transition:color .18s var(--ease);
}
.tab svg{color:currentColor}
.tab.is-active{color:var(--brand);font-weight:600}
.tab.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:24px;height:2px;background:var(--brand);border-radius:0 0 2px 2px}
.tab-cta{
  align-self:flex-start;transform:translateY(-14px);
  background:var(--signal);color:var(--ink);border-radius:14px;
  height:50px;margin:0 8px;font-weight:700;
  box-shadow:0 10px 24px -12px rgba(14,59,52,.6);
}
.tab-cta span{margin-top:2px;font-size:11px}
.tab-cta.is-active::before{display:none}

/* ---------- 固定转化条 ---------- */
.floating-cta{
  position:fixed;left:12px;right:12px;z-index:65;
  bottom:calc(68px + env(safe-area-inset-bottom));
  background:var(--paper-2);border:1px solid var(--line);border-radius:14px;
  padding:10px 12px;display:flex;align-items:center;gap:12px;justify-content:space-between;
  box-shadow:0 12px 30px -16px rgba(14,59,52,.45);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
}
.floating-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.floating-cta p{font-size:13px;color:var(--ink-2);line-height:1.4}
@media (min-width:1024px){
  .floating-cta{left:auto;right:24px;bottom:24px;width:320px;padding:12px 14px}
  .floating-cta p{font-size:13px}
}

/* ---------- 出场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation:none!important}
}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--muted);}

/* roulang page: category1 */
:root{
  --brand:#0E3B34;
  --brand-2:#145C4C;
  --signal:#D8FF4A;
  --accent:#FF7A45;
  --paper:#F5F4EF;
  --paper-2:#FFFFFF;
  --ink:#101314;
  --ink-2:#3A4144;
  --muted:#6E7673;
  --line:#E3E1D8;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,19,20,.04);
  --shadow-2:0 18px 40px -18px rgba(14,59,52,.28);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--paper);
  padding-bottom:76px;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
:focus-visible{outline:2px solid rgba(14,59,52,.45);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px !important;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,244,239,.9);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,background .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(245,244,239,.96)}
.header-inner{display:flex;align-items:center;gap:28px;height:76px;transition:height .25s ease}
.site-header.is-scrolled .header-inner{height:64px}
.logo{display:flex;align-items:center;gap:10px;color:var(--brand);font-weight:800;flex:0 0 auto}
.logo-mark{display:flex;align-items:center;color:var(--brand)}
.logo-text{font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:8px 12px;font-size:14.5px;color:var(--ink-2);
  border-radius:8px;transition:color .18s ease,background .18s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:rgba(14,59,52,.06)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-cta{margin-left:12px;flex:0 0 auto}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  text-decoration:none;white-space:nowrap;
  transition:background .18s cubic-bezier(.2,.7,.3,1),color .18s cubic-bezier(.2,.7,.3,1),
             border-color .18s cubic-bezier(.2,.7,.3,1),transform .18s cubic-bezier(.2,.7,.3,1);
}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--signal);color:var(--ink)}
.btn-primary:hover{background:#cdf13f;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-outline:hover{background:rgba(14,59,52,.07);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn-light-outline{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-light-outline:hover{background:rgba(255,255,255,.12);transform:translateY(-1px)}
.btn-light-outline:active{transform:translateY(0)}

/* ---------- Badge ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;padding:5px 12px;font-weight:600;
}
.badge-brand{background:rgba(14,59,52,.08);color:var(--brand)}
.badge-accent{background:rgba(255,122,69,.14);color:#C4511F}

/* ---------- Hero ---------- */
.hero-cat{position:relative;background:var(--paper);border-bottom:1px solid var(--line);overflow:hidden}
.hero-cat::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(14,59,52,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(14,59,52,.05) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 88%);
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 88%);
}
.hero-cat-inner{
  position:relative;display:grid;grid-template-columns:1.55fr .85fr;gap:52px;
  align-items:start;padding:68px 0 62px;
}
.hero-title{
  font-size:clamp(2.1rem,4.4vw,3.3rem);font-weight:800;letter-spacing:-.02em;
  line-height:1.12;color:var(--ink);margin:16px 0 0;
}
.hero-lead{font-size:17px;line-height:1.85;color:var(--ink-2);margin:16px 0 0;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin:30px 0 0;padding:0}
.trust-row li{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--ink-2);
  background:var(--paper-2);border:1px solid var(--line);border-radius:999px;padding:7px 14px;
}
.trust-row li span.dot{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block}

.hero-panel{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
}
.hero-panel h2{font-size:13px;letter-spacing:.08em;color:var(--muted);font-weight:600;margin:0 0 4px}
.panel-row{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;padding:16px 0;border-bottom:1px solid var(--line)}
.panel-row:last-child{border-bottom:0;padding-bottom:4px}
.panel-row .num{font-size:30px;font-weight:800;color:var(--brand);line-height:1;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.panel-row .num em{font-size:14px;font-style:normal;font-weight:600;margin-left:3px;color:var(--brand-2)}
.panel-row .desc{font-size:13px;color:var(--muted);text-align:right;line-height:1.5}
.panel-note{
  margin:16px 0 0;padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;line-height:1.7;color:var(--muted);
}

/* ---------- Breadcrumb ---------- */
.crumb{font-size:13px;color:var(--muted);padding:18px 0 0;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.crumb a{color:var(--muted);transition:color .18s ease}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#B9B7AC}
.crumb .current{color:var(--ink-2)}

/* ---------- Category layout ---------- */
.grid-cat{display:grid;grid-template-columns:3fr 9fr;gap:44px;align-items:start;padding:40px 0 84px}
.toc{position:sticky;top:98px}
.toc-card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-1)}
.toc-title{font-size:12px;letter-spacing:.1em;color:var(--muted);font-weight:700;margin:0 0 12px}
.toc-list{list-style:none;margin:0;padding:0}
.toc-list li{margin-bottom:2px}
.toc-list a{
  display:block;padding:9px 10px;font-size:13.5px;color:var(--ink-2);
  border-left:2px solid transparent;border-radius:0 8px 8px 0;line-height:1.5;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.toc-list a:hover{background:rgba(14,59,52,.06);color:var(--brand)}
.toc-list a.is-current{color:var(--brand);font-weight:600;border-left-color:var(--brand);background:rgba(14,59,52,.06)}
.toc-side{margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}
.toc-side p{font-size:12px;letter-spacing:.1em;color:var(--muted);font-weight:700;margin:0 0 10px}
.toc-side a{display:block;font-size:13.5px;color:var(--ink-2);padding:7px 0;transition:color .18s ease}
.toc-side a:hover{color:var(--brand)}
.toc-side a::after{content:"→";margin-left:6px;opacity:.5;transition:margin .18s ease}
.toc-side a:hover::after{margin-left:10px;opacity:1}

.article-col{max-width:760px}
.article-col > .block{padding:30px 0;border-top:1px solid var(--line)}
.article-col > .block:first-child{padding-top:0;border-top:0}
.sec-title{
  position:relative;padding-left:16px;margin:0 0 16px;
  font-size:clamp(1.4rem,2.6vw,1.9rem);font-weight:700;line-height:1.3;color:var(--ink);
  letter-spacing:-.01em;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.26em;width:4px;height:1.05em;
  background:var(--brand);border-radius:2px;
}
.sub-title{font-size:17px;font-weight:600;color:var(--ink);margin:24px 0 8px;line-height:1.5}
.article-col p{margin:0 0 16px;font-size:16px;line-height:1.9;color:var(--ink-2)}
.article-col p.lead-para{font-size:17.5px;color:var(--ink);line-height:1.85}
.plain{list-style:none;margin:0 0 18px;padding:0}
.plain li{position:relative;padding-left:18px;margin-bottom:11px;font-size:15.5px;line-height:1.85;color:var(--ink-2)}
.plain li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:1px;background:var(--brand)}
.plain li strong{color:var(--ink);font-weight:600}

.entry-figure{margin:26px 0 10px}
.entry-figure img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-img);filter:saturate(1.04)}
.entry-figure figcaption{font-size:12.5px;color:var(--muted);margin-top:10px;line-height:1.6}

.step-list{margin:8px 0 6px;padding:0;list-style:none}
.step{display:grid;grid-template-columns:46px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.step:last-child{border-bottom:0}
.step-num{
  width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(14,59,52,.08);color:var(--brand);font-weight:700;font-size:14px;
  font-variant-numeric:tabular-nums;
}
.step h3{margin:4px 0 6px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.45}
.step p{margin:0;font-size:15.5px;line-height:1.85}

.checklist{margin:6px 0 6px;padding:0;list-style:none;border-top:1px solid var(--line)}
.checklist li{
  display:grid;grid-template-columns:22px 1fr;gap:12px;align-items:start;
  padding:14px 0;border-bottom:1px solid var(--line);font-size:15.5px;line-height:1.8;
}
.checklist li .tick{
  width:18px;height:18px;margin-top:6px;border:1.5px solid var(--brand);border-radius:5px;
  display:inline-block;position:relative;
}
.checklist li .tick::after{
  content:"";position:absolute;left:5px;top:2px;width:5px;height:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(40deg);
}
.checklist li b{color:var(--ink);font-weight:600}

.callout{
  border-left:3px solid var(--brand);background:var(--paper-2);
  border-radius:0 var(--radius-card) var(--radius-card) 0;
  padding:18px 20px;margin:22px 0;font-size:15.5px;line-height:1.85;color:var(--ink-2);
}
.callout b{color:var(--ink)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:3fr 9fr;gap:44px;align-items:start;padding:68px 0;border-top:1px solid var(--line)}
.faq-intro h2{margin:0 0 10px;font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;color:var(--ink);line-height:1.28;letter-spacing:-.01em}
.faq-intro p{margin:0;font-size:14.5px;line-height:1.85;color:var(--muted)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-btn{
  width:100%;display:flex;align-items:center;gap:14px;background:none;border:0;
  padding:20px 0;text-align:left;cursor:pointer;color:var(--ink);
  font-size:16px;font-weight:600;line-height:1.6;
}
.faq-idx{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--accent);flex:0 0 auto}
.faq-icon{margin-left:auto;flex:0 0 auto;color:var(--brand);transition:transform .22s ease;display:flex}
.faq-btn[aria-expanded="true"] .faq-icon{transform:rotate(45deg)}
.faq-panel{max-height:0;overflow:hidden;opacity:0;transition:max-height .22s ease,opacity .22s ease}
.faq-panel.is-open{opacity:1}
.faq-panel p{margin:0 0 20px;padding-left:28px;font-size:15.5px;line-height:1.9;color:var(--ink-2)}

/* ---------- Cross links ---------- */
.cross{padding:8px 0 76px}
.cross-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.cross-head h2{margin:0;font-size:clamp(1.4rem,2.6vw,1.85rem);font-weight:700;color:var(--ink);letter-spacing:-.01em}
.cross-head a{font-size:14px;color:var(--brand);font-weight:600;transition:color .18s ease}
.cross-head a:hover{color:var(--accent)}
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cross-card{
  display:flex;flex-direction:column;gap:10px;background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.cross-card:hover{border-color:rgba(14,59,52,.32);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.cross-card h3{margin:0;font-size:17px;font-weight:600;color:var(--ink);line-height:1.45}
.cross-card p{margin:0;font-size:14.5px;line-height:1.8;color:var(--ink-2)}
.cross-card .go{font-size:13.5px;font-weight:600;color:var(--brand);margin-top:auto}
.cross-card .go::after{content:"→";margin-left:6px;transition:margin .18s ease}
.cross-card:hover .go::after{margin-left:10px}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--brand);color:#fff;border-radius:20px;padding:52px 36px;text-align:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border:1px solid rgba(255,255,255,.14);border-radius:50%;
}
.cta-band h2{margin:0 0 12px;font-size:clamp(1.5rem,3vw,2.2rem);font-weight:700;color:#fff;letter-spacing:-.01em;line-height:1.3}
.cta-band p{margin:0 auto;max-width:640px;font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.82)}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:28px;position:relative;z-index:1}
.cta-foot{margin-top:18px;font-size:13px;color:rgba(255,255,255,.6);position:relative;z-index:1}

/* ---------- Footer ---------- */
.site-footer{background:#101314;color:rgba(255,255,255,.72);margin-top:0;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:38px}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.12);padding-left:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;margin-bottom:14px}
.footer-brand .logo-mark{color:var(--signal)}
.footer-brand span{font-size:16.5px}
.footer-grid p{margin:0;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:300px}
.footer-title{font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.45);font-weight:700;margin:0 0 14px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin:0}
.footer-col a{display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.72);transition:color .18s ease}
.footer-col a:hover{color:var(--signal)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  padding:20px 0 26px;font-size:12.5px;color:rgba(255,255,255,.48);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--signal)}

/* ---------- Mobile tabbar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;height:60px;padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
}
.tab-item{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;font-size:11.5px;color:var(--muted);transition:color .18s ease;
}
.tab-item svg{display:block}
.tab-item.is-active{color:var(--brand);font-weight:600}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;background:var(--brand);border-radius:0 0 2px 2px;
}

/* ---------- Sticky CTA ---------- */
.sticky-cta{
  position:fixed;left:12px;right:12px;bottom:calc(72px + env(safe-area-inset-bottom));z-index:65;
  min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:14px;
  padding:8px 10px 8px 16px;box-shadow:0 18px 40px -18px rgba(14,59,52,.32);
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity .28s ease,transform .28s ease;
}
.sticky-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.sticky-cta p{margin:0;font-size:13px;line-height:1.4;color:var(--ink-2)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:1023px){
  .main-nav{display:none}
  .header-inner{height:66px;gap:12px}
  .header-cta{margin-left:auto}
  .hero-cat-inner{grid-template-columns:1fr;gap:30px;padding:46px 0 48px}
  .grid-cat{grid-template-columns:1fr;gap:26px;padding:28px 0 64px}
  .toc{position:static}
  .article-col{max-width:100%}
  .faq-wrap{grid-template-columns:1fr;gap:24px;padding:52px 0}
  .footer-col + .footer-col{border-left:0;padding-left:0}
}
@media(min-width:1024px){
  body{padding-bottom:0}
  .tabbar{display:none}
  .sticky-cta{left:auto;right:24px;bottom:24px;width:320px}
}
@media(max-width:880px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-grid p{max-width:100%}
  .cross-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:639px){
  .hero-title{font-size:clamp(1.9rem,7.4vw,2.4rem)}
  .hero-actions .btn{flex:1 1 100%}
  .cross-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:38px 20px;border-radius:18px}
  .cross-head{flex-direction:column;align-items:flex-start}
  .step{grid-template-columns:40px 1fr;gap:12px}
  .faq-panel p{padding-left:0}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --brand:#0E3B34;
  --brand-2:#145C4C;
  --signal:#D8FF4A;
  --accent:#FF7A45;
  --paper:#F5F4EF;
  --paper-2:#FFFFFF;
  --ink:#101314;
  --ink-2:#3A4144;
  --muted:#6E7673;
  --line:#E3E1D8;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,19,20,.04);
  --shadow-2:0 18px 40px -18px rgba(14,59,52,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink-2);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  padding-bottom:76px;
}
@media (min-width:1024px){html body{padding-bottom:0}}
img{max-width:100%;display:block}
a{text-decoration:none}
button{font-family:inherit}
:focus-visible{outline:2px solid rgba(14,59,52,.5);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{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,244,239,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px -20px rgba(16,19,20,.45)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:76px;transition:min-height .2s var(--ease)}
.site-header.is-scrolled .header-inner{min-height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand);flex:none}
.logo-mark{display:grid;place-items:center;color:var(--brand)}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--brand);white-space:nowrap}
.main-nav{display:none;margin-left:auto;align-items:center;gap:4px}
@media (min-width:1024px){.main-nav{display:flex}}
.nav-link{
  position:relative;padding:8px 12px;border-radius:10px;font-size:14.5px;color:var(--ink-2);
  transition:color .18s var(--ease),background .18s var(--ease),font-weight .18s var(--ease);
}
.nav-link:hover{color:var(--brand);background:rgba(14,59,52,.06)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;background:var(--brand);
}
.header-cta{display:none}
@media (min-width:1024px){.header-cta{display:inline-flex}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--signal);color:var(--ink);border-color:var(--signal)}
.btn-primary:hover{background:#cbf23c;transform:translateY(-1px);box-shadow:0 12px 26px -16px rgba(14,59,52,.6)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-secondary{background:transparent;color:var(--brand);border-color:rgba(14,59,52,.35)}
.btn-secondary:hover{border-color:var(--brand);background:rgba(14,59,52,.05);transform:translateY(-1px)}
.btn-secondary:active{transform:translateY(0)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);transform:translateY(-1px)}
.btn-ghost-light:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- breadcrumb ---------- */
.article-wrap{padding:28px 0 64px}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--muted);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#c9c7bd}
.breadcrumb .current{
  color:var(--muted);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
@media (max-width:520px){.breadcrumb .mid{display:none}.breadcrumb .sep-mid{display:none}}

/* ---------- article head ---------- */
.article-head{border-bottom:1px solid var(--line);padding:22px 0 28px;margin-bottom:40px}
.article-title{
  font-size:clamp(1.9rem,4vw,3rem);font-weight:800;line-height:1.2;letter-spacing:-.02em;
  color:var(--ink);margin:16px 0 0;max-width:900px;
}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-top:18px}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#cfcdc3}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;background:rgba(14,59,52,.08);color:var(--brand);
}
.badge-accent{background:rgba(255,122,69,.14);color:#c2451a}

/* ---------- article layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:56px}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,760px) 296px;justify-content:center;gap:64px}
}
.article-main{max-width:760px;width:100%;margin:0 auto;min-width:0}
@media (min-width:1280px){.article-main{margin:0}}

.article-body{font-size:16.5px;line-height:1.9;color:var(--ink-2)}
.article-body > p:first-of-type{font-size:17.5px;color:var(--ink);line-height:1.9}
.article-body p{margin:0 0 22px}
.article-body h2{
  position:relative;font-size:clamp(1.4rem,2.6vw,1.75rem);font-weight:700;line-height:1.35;
  color:var(--ink);margin:42px 0 16px;padding-left:14px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:1.05em;border-radius:2px;background:var(--brand)}
.article-body h3{font-size:18px;font-weight:600;line-height:1.5;color:var(--ink);margin:28px 0 12px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:4px;transition:color .18s var(--ease)}
.article-body a:hover{color:var(--accent)}
.article-body ul{list-style:none;padding-left:0;margin:0 0 22px}
.article-body ul li{position:relative;padding-left:18px;margin:8px 0}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:1px;background:var(--brand)}
.article-body ol{padding-left:20px;margin:0 0 22px;list-style:decimal}
.article-body ol li{margin:8px 0}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--paper-2);border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;color:var(--ink-2);
}
.article-body img{width:100%;height:auto;border-radius:var(--radius-img);margin:24px 0 8px}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--muted);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:14.5px;margin:24px 0;display:block;overflow-x:auto;white-space:nowrap}
.article-body thead{background:rgba(14,59,52,.08)}
.article-body th{padding:12px 14px;text-align:left;font-weight:600;color:var(--ink)}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body code{background:rgba(14,59,52,.07);padding:2px 6px;border-radius:6px;font-size:.9em}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

.article-empty{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--paper-2);
  padding:52px 24px;text-align:center;
}
.article-empty h2{margin:0 0 12px;font-size:22px;font-weight:700;color:var(--ink)}
.article-empty p{margin:0 auto 24px;max-width:460px;color:var(--muted);line-height:1.85}

/* ---------- toc ---------- */
.toc-mobile{margin-bottom:30px}
@media (min-width:1280px){.toc-mobile{display:none}}
.toc-mobile details{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--paper-2);padding:0 18px}
.toc-mobile summary{
  cursor:pointer;list-style:none;padding:16px 0;font-size:14.5px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{content:"+";color:var(--brand);font-size:18px;line-height:1}
.toc-mobile details[open] summary::after{content:"–"}
.toc-mobile .toc-list{padding-bottom:14px}

.article-aside{display:none}
@media (min-width:1280px){.article-aside{display:block}}
.aside-card{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px}
.aside-box{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-1)}
.aside-title{font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--muted);margin:0 0 14px}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;max-height:340px;overflow:auto}
.toc-link{
  display:block;padding:7px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
  font-size:14px;line-height:1.55;color:var(--ink-2);transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.toc-link:hover{color:var(--brand);background:rgba(14,59,52,.05)}
.toc-link.is-current{color:var(--brand);font-weight:600;border-left-color:var(--brand);background:rgba(14,59,52,.06)}
.toc-link.depth-3{padding-left:22px;font-size:13.5px;color:var(--muted)}
.topic-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.topic-list a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 0;
  font-size:14px;color:var(--ink-2);border-bottom:1px dashed var(--line);transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.topic-list li:last-child a{border-bottom:0}
.topic-list a:hover{color:var(--brand);padding-left:4px}
.topic-list a span{color:var(--muted);font-size:12px}

/* ---------- read next ---------- */
.read-next{display:grid;grid-template-columns:1fr;gap:16px;margin-top:56px}
@media (min-width:640px){.read-next{grid-template-columns:1fr 1fr}}
.next-card{
  display:block;padding:20px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--paper-2);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease);
}
.next-card:hover{border-color:rgba(14,59,52,.5);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.next-card:active{transform:translateY(0)}
.next-label{font-size:12px;letter-spacing:.08em;color:var(--muted);font-weight:600}
.next-title{display:block;margin-top:8px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.5}
.back-cat{margin-top:22px;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section-tight{padding:48px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-title{
  position:relative;font-size:clamp(1.6rem,3.4vw,2.2rem);font-weight:700;line-height:1.2;
  letter-spacing:-.01em;color:var(--ink);margin:0;padding-left:16px;
}
.section-title::before{content:"";position:absolute;left:0;top:.22em;width:12px;height:12px;border-radius:3px;background:var(--accent)}
.section-sub{margin:10px 0 0;font-size:15px;color:var(--muted);max-width:640px}
.link-more{font-size:14.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;transition:color .18s var(--ease),gap .18s var(--ease)}
.link-more:hover{color:var(--accent);gap:10px}

.news-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--radius-card);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.news-card:hover{border-color:rgba(14,59,52,.3);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.news-card:active{transform:translateY(0)}
.news-thumb{aspect-ratio:16/10;overflow:hidden;background:#e9e7de}
.news-thumb img{width:100%;height:100%;object-fit:cover;filter:saturate(.95);transition:transform .4s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-title{font-size:17px;font-weight:600;line-height:1.45;color:var(--ink);margin:0 0 10px;transition:color .18s var(--ease)}
.news-card:hover .news-title{color:var(--brand)}
.news-excerpt{
  font-size:14.5px;line-height:1.7;color:var(--muted);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);margin-top:auto}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:14px;padding:22px 0;background:none;border:0;
  text-align:left;font-size:16.5px;font-weight:600;line-height:1.55;color:var(--ink);cursor:pointer;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--brand-2)}
.faq-num{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent);padding-top:4px;flex:none}
.faq-icon{margin-left:auto;flex:none;color:var(--brand);transition:transform .22s var(--ease);padding-top:2px}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .22s var(--ease),opacity .22s var(--ease)}
.faq-a-inner{padding:0 0 22px 32px;font-size:15px;line-height:1.85;color:var(--muted);max-width:720px}

/* ---------- cta ---------- */
.cta-section{
  position:relative;overflow:hidden;border-radius:24px;background:var(--brand);
  background-image:linear-gradient(rgba(14,59,52,.88),rgba(14,59,52,.94)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;color:#fff;padding:52px 28px;text-align:center;margin:64px 0 0;
}
@media (min-width:1024px){.cta-section{padding:64px 56px}}
.cta-title{font-size:clamp(1.6rem,3.4vw,2.2rem);font-weight:700;line-height:1.25;margin:0 0 14px;color:#fff}
.cta-text{margin:0 auto 28px;max-width:620px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.82)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.cta-form{display:grid;grid-template-columns:1fr;gap:12px;max-width:520px;margin:28px auto 0}
@media (min-width:640px){.cta-form{grid-template-columns:1fr auto}}
.input{
  width:100%;height:46px;padding:0 14px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.35);
  background:rgba(255,255,255,.08);color:#fff;font-size:14.5px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.input::placeholder{color:rgba(255,255,255,.6)}
.input:focus{outline:none;border-color:var(--signal);background:rgba(255,255,255,.14);box-shadow:0 0 0 2px rgba(216,255,74,.28)}
.form-hint{font-size:13px;color:rgba(255,255,255,.78);margin:12px 0 0;min-height:20px}

/* ---------- footer ---------- */
.site-footer{background:#0E3B34;color:rgba(255,255,255,.78);margin-top:80px;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:0}}
@media (min-width:1024px){
  .footer-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.12)}
  .footer-col:first-child{border-left:0;padding-left:0}
  .footer-col:last-child{padding-right:0}
}
.footer-col:first-child{padding-left:0}
.footer-brand .logo{color:#fff}
.footer-brand .logo-mark{color:var(--signal)}
.footer-brand .logo-text{color:#fff}
.footer-desc{margin:18px 0 0;font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:320px}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.1em;color:#fff;margin:0 0 10px}
.footer-link{display:block;font-size:14.5px;line-height:44px;color:rgba(255,255,255,.72);transition:color .18s var(--ease),padding-left .18s var(--ease)}
.footer-link:hover{color:var(--signal);padding-left:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:22px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.58);
}
.footer-bottom a{color:rgba(255,255,255,.68);transition:color .18s var(--ease)}
.footer-bottom a:hover{color:var(--signal)}

/* ---------- mobile tabbar ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:grid;grid-template-columns:repeat(4,1fr);
  background:rgba(255,255,255,.97);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);
}
@media (min-width:1024px){.mobile-tabbar{display:none}}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:60px;font-size:11.5px;color:var(--muted);transition:color .18s var(--ease);
}
.tab-item svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab-item.is-active{color:var(--brand);font-weight:600}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:2px;border-radius:2px;background:var(--brand);
}

/* ---------- sticky convert bar ---------- */
.convert-bar{
  position:fixed;left:0;right:0;bottom:calc(60px + env(safe-area-inset-bottom));z-index:65;
  display:flex;align-items:center;gap:12px;padding:10px 16px;
  background:rgba(255,255,255,.98);border-top:1px solid var(--line);
  transform:translateY(140%);opacity:0;pointer-events:none;
  transition:transform .28s var(--ease),opacity .28s var(--ease);
}
.convert-bar.is-visible{transform:translateY(0);opacity:1;pointer-events:auto}
.convert-text{flex:1;font-size:13.5px;line-height:1.5;color:var(--ink-2)}
.convert-text strong{color:var(--brand)}
@media (min-width:1024px){
  .convert-bar{
    left:auto;right:24px;bottom:24px;width:320px;flex-direction:column;align-items:stretch;
    border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-2);padding:16px;gap:10px;
  }
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .news-card:hover .news-thumb img{transform:none}
}

/* roulang page: category2 */
:root{
  --brand:#0E3B34;
  --brand-2:#145C4C;
  --signal:#D8FF4A;
  --accent:#FF7A45;
  --paper:#F5F4EF;
  --paper-2:#FFFFFF;
  --ink:#101314;
  --ink-2:#3A4144;
  --muted:#6E7673;
  --line:#E3E1D8;
  --ink-bg:#0E3B34;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --sd-sm:0 1px 2px rgba(16,19,20,.04);
  --sd-hover:0 18px 40px -18px rgba(14,59,52,.28);
  --tr:180ms cubic-bezier(.2,.7,.3,1);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-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);
  background:var(--paper);
  color:var(--ink-2);
  font-size:16px;
  line-height:1.85;
  padding-bottom:76px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--tr),border-color var(--tr),background-color var(--tr);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:none;box-shadow:0 0 0 2px rgba(14,59,52,.4);border-radius:6px;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-0.02em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:1024px){.container{padding:0 32px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 22px;border-radius:var(--r-btn);
  border:1px solid transparent;white-space:nowrap;
  transition:background-color var(--tr),color var(--tr),border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--signal);color:var(--ink);font-weight:700;}
.btn-primary:hover{background:#cbf23c;}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-outline:hover{background:rgba(14,59,52,.06);}
.btn-light-outline{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-light-outline:hover{border-color:#fff;background:rgba(255,255,255,.08);}
.btn-sm{padding:11px 18px;font-size:14px;}
.btn-lg{padding:16px 28px;font-size:16px;}
.btn-block{width:100%;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,244,239,.86);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.site-header.is-scrolled{
  background:rgba(245,244,239,.94);
  border-bottom-color:var(--line);
  box-shadow:0 6px 24px -20px rgba(16,19,20,.35);
}
.header-inner{display:flex;align-items:center;gap:20px;height:74px;transition:height var(--tr);}
.site-header.is-scrolled .header-inner{height:64px;}
.logo{display:flex;align-items:center;gap:10px;color:var(--brand);flex:0 0 auto;}
.logo-mark{display:flex;color:var(--brand);}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-0.01em;color:var(--ink);}
.main-nav{display:none;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;padding:10px 14px;font-size:14.5px;font-weight:500;color:var(--ink-2);
  border-radius:8px;
}
.nav-link:hover{color:var(--brand);background:rgba(14,59,52,.06);}
.nav-link.is-active{color:var(--brand);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-cta{display:none;margin-left:12px;}
@media(min-width:1024px){
  .main-nav{display:flex;}
  .header-cta{display:inline-flex;}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink-bg);}
.hero-bg{position:absolute;inset:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;filter:saturate(.85) brightness(.62);}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,59,52,.88),rgba(16,19,20,.93));
}
.hero-inner{position:relative;z-index:1;padding:96px 0 64px;}
@media(min-width:1024px){.hero-inner{padding:132px 0 84px;}}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.62);margin-bottom:22px;
}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .crumb-now{color:rgba(255,255,255,.78);}
.breadcrumb .sep{color:rgba(255,255,255,.32);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.08em;font-weight:600;
  padding:6px 12px;border-radius:999px;
}
.badge-signal{background:rgba(216,255,74,.16);color:var(--signal);border:1px solid rgba(216,255,74,.32);}
.badge-brand{background:rgba(14,59,52,.08);color:var(--brand);}
.badge-accent{background:rgba(255,122,69,.12);color:#C24E1F;}
.hero h1{
  color:#fff;font-size:clamp(2rem,4.4vw,3.4rem);font-weight:800;line-height:1.12;
  letter-spacing:-0.02em;margin:22px 0 0;max-width:16em;
}
.hero-sub{
  margin-top:18px;font-size:17px;line-height:1.7;color:rgba(255,255,255,.9);
  max-width:34em;font-weight:500;
}
.hero-desc{
  margin-top:12px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.66);max-width:44em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.hero-actions .btn{flex:1 1 auto;min-width:180px;}
@media(min-width:640px){.hero-actions .btn{flex:0 0 auto;}}
.trust-row{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:36px;
  padding-top:26px;border-top:1px solid rgba(255,255,255,.14);
}
.trust-row li{
  display:flex;align-items:center;gap:8px;font-size:13px;
  color:rgba(255,255,255,.78);letter-spacing:.02em;
}
.trust-row svg{flex:0 0 auto;color:var(--signal);}

/* ---------- 板块通用 ---------- */
.section{padding:64px 0;}
@media(min-width:1024px){.section{padding:96px 0;}}
.section-tight{padding:52px 0;}
@media(min-width:1024px){.section-tight{padding:72px 0;}}
.section-head{margin-bottom:32px;max-width:760px;}
@media(min-width:1024px){.section-head{margin-bottom:44px;}}
.eyebrow{
  display:block;font-size:12px;letter-spacing:.14em;font-weight:700;
  color:var(--brand-2);text-transform:uppercase;margin-bottom:12px;
}
.section-title{
  position:relative;font-size:clamp(1.55rem,3.2vw,2.3rem);font-weight:700;line-height:1.25;
  padding-left:16px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand);
}
.section-note{margin-top:16px;font-size:15px;line-height:1.9;color:var(--muted);max-width:660px;}

/* ---------- 卡片网格 ---------- */
.cards-grid{display:grid;gap:18px;grid-template-columns:1fr;}
@media(min-width:640px){.cards-grid{grid-template-columns:repeat(2,1fr);gap:22px;}}
.info-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sd-sm);
  transition:border-color var(--tr),box-shadow var(--tr),transform var(--tr);
}
.info-card:hover{border-color:rgba(14,59,52,.3);box-shadow:var(--sd-hover);transform:translateY(-2px);}
.card-icon{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(14,59,52,.07);color:var(--brand);margin-bottom:16px;
}
.card-icon svg{width:22px;height:22px;}
.info-card h3{font-size:17.5px;font-weight:600;line-height:1.45;margin-bottom:10px;}
.info-card p{font-size:14.5px;line-height:1.85;color:var(--ink-2);}
.card-meta{margin-top:14px;font-size:12px;letter-spacing:.06em;color:var(--muted);}

/* ---------- KPI 条 ---------- */
.kpi-strip{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  display:grid;grid-template-columns:1fr;overflow:hidden;
}
@media(min-width:640px){.kpi-strip{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.kpi-strip{grid-template-columns:repeat(4,1fr);}}
.kpi{
  padding:24px 22px;border-bottom:1px solid var(--line);
}
@media(min-width:640px){
  .kpi:nth-child(odd){border-right:1px solid var(--line);}
  .kpi:nth-child(3),.kpi:nth-child(4){border-bottom:none;}
}
@media(min-width:1024px){
  .kpi{border-right:1px solid var(--line);border-bottom:none;}
  .kpi:nth-child(odd){border-right:1px solid var(--line);}
  .kpi:last-child{border-right:none;}
}
.kpi-num{font-size:34px;font-weight:800;color:var(--brand);line-height:1;letter-spacing:-0.02em;font-variant-numeric:tabular-nums;}
.kpi-num em{font-style:normal;font-size:16px;font-weight:700;color:var(--muted);margin-left:4px;}
.kpi-label{margin-top:10px;font-size:13px;color:var(--muted);letter-spacing:.02em;}

/* ---------- 图文行 ---------- */
.split{display:grid;gap:28px;align-items:center;grid-template-columns:1fr;}
@media(min-width:1024px){.split{grid-template-columns:1.05fr 1fr;gap:56px;}}
.split-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:var(--paper-2);}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:saturate(.92);transition:transform 320ms cubic-bezier(.2,.7,.3,1);}
.split-media:hover img{transform:scale(1.03);}
.split h2{font-size:clamp(1.4rem,2.6vw,1.95rem);font-weight:700;line-height:1.3;padding-left:16px;position:relative;}
.split h2::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:2px;background:var(--brand);}
.split p{margin-top:18px;font-size:15.5px;line-height:1.9;color:var(--ink-2);max-width:34em;}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{display:flex;gap:12px;font-size:15px;line-height:1.8;color:var(--ink-2);}
.check-list li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;margin-top:11px;border-radius:1px;background:var(--accent);
}
.arrow-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:26px;
  font-size:15px;font-weight:600;color:var(--brand);border-bottom:1px solid rgba(14,59,52,.28);
  padding-bottom:3px;
}
.arrow-link svg{transition:transform var(--tr);}
.arrow-link:hover{color:var(--accent);border-color:rgba(255,122,69,.5);}
.arrow-link:hover svg{transform:translateX(4px);}

/* ---------- 规格对比块 ---------- */
.spec-block{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.spec-head{
  display:none;grid-template-columns:1.1fr 1fr 1fr;gap:0;
  background:rgba(14,59,52,.05);border-bottom:1px solid var(--line);
}
.spec-head span{padding:16px 22px;font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--brand);}
.spec-head span + span{border-left:1px solid var(--line);}
@media(min-width:1024px){.spec-head{display:grid;}}
.spec-row{border-bottom:1px solid var(--line);}
.spec-row:last-child{border-bottom:none;}
@media(min-width:1024px){.spec-row{display:grid;grid-template-columns:1.1fr 1fr 1fr;}}
.spec-cell{padding:18px 20px;}
@media(min-width:1024px){.spec-cell{padding:20px 22px;}.spec-cell + .spec-cell{border-left:1px solid var(--line);}}
.spec-key{display:block;font-size:12px;letter-spacing:.08em;color:var(--muted);margin-bottom:6px;}
@media(min-width:1024px){.spec-key{display:none;}}
.spec-cell strong{font-size:15.5px;font-weight:700;color:var(--ink);}
.spec-cell .ok{color:var(--brand);font-size:15px;font-weight:600;display:flex;gap:8px;align-items:flex-start;}
.spec-cell .warn{color:#B94A20;font-size:15px;font-weight:600;display:flex;gap:8px;align-items:flex-start;}
.spec-cell .ok svg,.spec-cell .warn svg{flex:0 0 auto;margin-top:5px;}

/* ---------- 场景列表 ---------- */
.cases{display:grid;gap:32px;grid-template-columns:1fr;}
@media(min-width:1024px){.cases{grid-template-columns:0.8fr 1.2fr;gap:64px;align-items:start;}}
.case-list{display:grid;gap:0;}
.case-item{
  display:grid;grid-template-columns:auto 1fr;gap:18px;
  padding:24px 0;border-top:1px solid var(--line);
}
.case-item:last-child{border-bottom:1px solid var(--line);}
.case-num{
  font-size:22px;font-weight:800;color:var(--accent);line-height:1.2;
  font-variant-numeric:tabular-nums;letter-spacing:-0.02em;
}
.case-item h3{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.case-item p{font-size:14.5px;line-height:1.85;color:var(--ink-2);max-width:46em;}

/* ---------- 表单 ---------- */
.form-block{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sd-sm);
}
@media(min-width:1024px){.form-block{padding:40px 44px;}}
.form-grid{display:grid;gap:20px;grid-template-columns:1fr;margin-top:26px;}
@media(min-width:768px){.form-grid{grid-template-columns:1fr 1fr;gap:22px 24px;}}
.field{display:flex;flex-direction:column;gap:8px;}
.field-full{grid-column:1/-1;}
.field label{font-size:12.5px;letter-spacing:.04em;color:var(--ink-2);font-weight:600;}
.field .hint{font-size:12px;color:var(--muted);}
.input,.textarea{
  width:100%;font-family:inherit;font-size:15px;color:var(--ink);
  background:var(--paper);
  border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;height:46px;line-height:46px;
  transition:border-color var(--tr),box-shadow var(--tr),background-color var(--tr);
}
.textarea{height:auto;padding:12px 14px;line-height:1.75;resize:vertical;min-height:118px;}
.input::placeholder,.textarea::placeholder{color:#9AA09D;}
.input:focus,.textarea:focus{
  outline:none;background:var(--paper-2);border-color:var(--brand);box-shadow:0 0 0 2px rgba(14,59,52,.22);
}
.form-actions{grid-column:1/-1;display:flex;flex-direction:column;gap:14px;margin-top:6px;}
@media(min-width:640px){.form-actions{flex-direction:row;align-items:center;}}
.form-actions .btn{width:100%;}
@media(min-width:640px){.form-actions .btn{width:auto;}}
.form-note{font-size:12.5px;line-height:1.7;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;gap:28px;grid-template-columns:1fr;}
@media(min-width:1024px){.faq-layout{grid-template-columns:0.72fr 1.28fr;gap:64px;align-items:start;}}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:16px;text-align:left;
  padding:22px 0;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color var(--tr);
}
.faq-q:hover{color:var(--brand-2);}
.faq-index{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.06em;padding-top:3px;font-variant-numeric:tabular-nums;}
.faq-q span.q-text{flex:1;}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;margin-top:2px;
  transition:transform 220ms cubic-bezier(.2,.7,.3,1);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;transition:opacity 220ms ease;}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height 220ms cubic-bezier(.2,.7,.3,1),opacity 220ms ease;
}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a-inner{padding:0 0 24px 44px;font-size:15px;line-height:1.9;color:var(--ink-2);max-width:60em;}
@media(max-width:520px){.faq-a-inner{padding-left:0;}}

/* ---------- 交叉链接 ---------- */
.cross-grid{display:grid;gap:18px;grid-template-columns:1fr;}
@media(min-width:640px){.cross-grid{grid-template-columns:repeat(3,1fr);gap:22px;}}
.cross-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;transition:border-color var(--tr),box-shadow var(--tr),transform var(--tr);
}
.cross-card:hover{border-color:rgba(14,59,52,.3);box-shadow:var(--sd-hover);transform:translateY(-2px);}
.cross-card h3{font-size:17px;font-weight:600;}
.cross-card p{font-size:14px;line-height:1.8;color:var(--muted);flex:1;}
.cross-card .cross-more{font-size:13.5px;font-weight:600;color:var(--brand);display:flex;align-items:center;gap:6px;}
.cross-card:hover .cross-more{color:var(--accent);}

/* ---------- CTA ---------- */
.cta-block{background:var(--ink-bg);position:relative;overflow:hidden;}
.cta-block::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:rgba(216,255,74,.08);
}
.cta-inner{position:relative;z-index:1;text-align:center;padding:64px 0;}
@media(min-width:1024px){.cta-inner{padding:88px 0;}}
.cta-inner h2{color:#fff;font-size:clamp(1.5rem,3.2vw,2.2rem);font-weight:700;line-height:1.3;}
.cta-inner p{margin:16px auto 0;font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.72);max-width:44em;}
.cta-actions{display:flex;flex-direction:column;gap:12px;margin-top:32px;align-items:center;}
@media(min-width:640px){.cta-actions{flex-direction:row;justify-content:center;}}
.cta-actions .btn{width:100%;max-width:280px;}
@media(min-width:640px){.cta-actions .btn{width:auto;}}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E3B34;color:rgba(255,255,255,.72);padding:56px 0 0;}
@media(min-width:1024px){.site-footer{padding:72px 0 0;}}
.footer-grid{
  display:grid;gap:32px;grid-template-columns:1fr;
  padding-bottom:40px;
}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px;}
.footer-brand .logo-mark{color:var(--signal);}
.footer-brand .logo-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:30em;}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;letter-spacing:.06em;margin-bottom:16px;}
.footer-links{display:grid;gap:0;}
.footer-links a{
  display:block;font-size:14px;color:rgba(255,255,255,.68);line-height:44px;
  border-bottom:1px solid rgba(255,255,255,.08);transition:color var(--tr),padding-left var(--tr);
}
.footer-links a:hover{color:var(--signal);padding-left:4px;}
.footer-links li:last-child a{border-bottom:none;}
.footer-info{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);}
.footer-info strong{color:#fff;font-weight:600;display:block;margin-bottom:6px;font-size:14px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62);}
.footer-bottom a:hover{color:var(--signal);}

/* ---------- 底部 Tab ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:grid;grid-template-columns:repeat(4,1fr);
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  height:60px;
  padding-bottom:env(safe-area-inset-bottom);
}
@media(min-width:1024px){.mobile-tabbar{display:none;}}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--muted);letter-spacing:.02em;transition:color var(--tr);
}
.tab-item svg{width:20px;height:20px;}
.tab-item.is-active{color:var(--brand);font-weight:700;}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:22%;right:22%;height:2px;background:var(--brand);border-radius:2px;
}
.tab-item.is-main{
  color:var(--ink);font-weight:700;
  background:var(--signal);border-radius:14px;
  transform:translateY(-14px);height:60px;margin:0 8px;
  box-shadow:0 12px 24px -14px rgba(14,59,52,.45);
}
.tab-item.is-main::before{display:none;}
.tab-item.is-main.is-active{color:var(--ink);}

/* ---------- 浮动转化条 ---------- */
.float-cta{
  position:fixed;z-index:80;left:12px;right:12px;bottom:76px;
  display:flex;align-items:center;gap:12px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:14px;
  padding:10px 12px;box-shadow:0 18px 40px -22px rgba(16,19,20,.45);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity 220ms ease,transform 220ms ease,visibility 220ms;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta p{flex:1;font-size:12.5px;line-height:1.5;color:var(--ink-2);margin:0;}
@media(min-width:1024px){
  .float-cta{left:auto;right:24px;bottom:24px;width:320px;}
}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 620ms cubic-bezier(.2,.7,.3,1),transform 620ms cubic-bezier(.2,.7,.3,1);}
.reveal.is-visible{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation:none !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --brand:#0E3B34;
  --brand-2:#145C4C;
  --signal:#D8FF4A;
  --signal-deep:#CBEF3E;
  --accent:#FF7A45;
  --paper:#F5F4EF;
  --paper-2:#FFFFFF;
  --ink-bg:#101314;
  --ink:#101314;
  --ink-2:#3A4144;
  --muted:#6E7673;
  --line:#E3E1D8;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(16,19,20,.04);
  --shadow-hover:0 18px 40px -18px rgba(14,59,52,.28);
  --font:-apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--paper);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease,opacity .18s ease}
img{max-width:100%;height:auto;display:block}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse}
:focus-visible{outline:2px solid rgba(14,59,52,.45);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:transform .18s cubic-bezier(.2,.7,.3,1),background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--signal);color:var(--ink)}
.btn-primary:hover{background:var(--signal-deep)}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:rgba(14,59,52,.07)}
.btn-outline-light{border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(245,244,239,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{
  background:rgba(245,244,239,.94);
  border-bottom-color:var(--line);
  box-shadow:0 1px 0 rgba(16,19,20,.03);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  height:74px;transition:height .2s ease;
}
.site-header.is-scrolled .header-inner{height:62px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand);flex:0 0 auto}
.logo-mark{display:inline-flex;color:var(--brand)}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--brand)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:18px}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:9px;font-size:15px;color:var(--ink-2);font-weight:500;
}
.nav-link:hover{background:rgba(14,59,52,.06);color:var(--brand)}
.nav-link.is-active{background:rgba(14,59,52,.1);color:var(--brand);font-weight:600}
.header-cta{margin-left:auto}
@media (max-width:1023px){
  .main-nav,.header-cta{display:none}
  .header-inner{height:64px}
}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{background:var(--paper);border-bottom:1px solid var(--line)}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding:14px 0;font-size:13px;color:var(--muted);
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C6C3B8}
.breadcrumb .current{color:var(--ink-2)}

/* ---------- Hero ---------- */
.page-hero{position:relative;isolation:isolate;overflow:hidden;color:#fff;padding:60px 0 56px}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  filter:saturate(.9);
}
.page-hero::after{content:"";position:absolute;inset:0;z-index:-1;background:rgba(14,59,52,.86)}
.hero-inner{position:relative;max-width:820px}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.1em;
}
.tag-signal{background:rgba(216,255,74,.16);color:var(--signal);border:1px solid rgba(216,255,74,.35)}
.page-hero h1{
  margin-top:20px;
  font-size:clamp(2rem,5vw,3.2rem);
  font-weight:800;line-height:1.14;letter-spacing:-.02em;color:#fff;
}
.hero-lead{margin-top:16px;font-size:clamp(1rem,1.6vw,1.15rem);color:rgba(255,255,255,.82);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:34px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;color:rgba(255,255,255,.78);
}
.hero-trust li{display:inline-flex;align-items:center;gap:8px}
.hero-trust li::before{
  content:"";width:6px;height:6px;border-radius:1px;background:var(--signal);flex:0 0 6px;
}

/* ---------- 板块 ---------- */
.section{padding:72px 0}
.section-alt{background:var(--paper-2)}
.section-tight{padding:44px 0}
@media (min-width:1024px){
  .section{padding:104px 0}
  .section-tight{padding:56px 0}
}
.section-head{max-width:720px}
.section-head h2{
  position:relative;padding-left:16px;margin-top:12px;
  font-size:clamp(1.6rem,3.4vw,2.4rem);font-weight:700;line-height:1.24;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.3em;
  width:4px;height:26px;border-radius:2px;background:var(--brand);
}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--brand)}
.lead{margin-top:16px;font-size:16px;color:var(--ink-2);max-width:680px}
.section-note{margin-top:0;font-size:15px;color:var(--muted);max-width:760px}

/* ---------- 要点条 ---------- */
.pill-row{display:flex;flex-wrap:wrap;gap:10px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  background:rgba(14,59,52,.07);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.pill-accent{background:rgba(255,122,69,.13);color:#C24E1F}
.pill-row + .section-note{margin-top:18px}

/* ---------- 编号步骤 ---------- */
.steps{position:relative;margin-top:44px}
.steps::before{
  content:"";position:absolute;left:23px;top:18px;bottom:18px;width:1px;background:var(--line);
}
.step{position:relative;display:grid;grid-template-columns:48px 1fr;gap:22px;padding:20px 0}
.step + .step{margin-top:4px}
.step-num{
  position:relative;z-index:1;
  width:48px;height:48px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--paper-2);border:1px solid var(--line);
  color:var(--brand);font-size:17px;font-weight:800;
  box-shadow:var(--shadow-sm);
}
.step-title{margin:6px 0 8px;font-size:18px;font-weight:600;color:var(--ink)}
.step-text{font-size:15px;line-height:1.9;color:var(--ink-2);max-width:720px}
.step-meta{
  display:inline-flex;align-items:center;gap:8px;margin-top:12px;
  font-size:12px;letter-spacing:.08em;color:var(--accent);font-weight:600;
}
@media (max-width:639px){
  .step{grid-template-columns:40px 1fr;gap:16px}
  .step-num{width:40px;height:40px;font-size:15px;border-radius:10px}
  .steps::before{left:19px}
}

/* ---------- 图文 ---------- */
.media-block{margin:0}
.media-block img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--radius-img);filter:saturate(.95);
  border:1px solid var(--line);
}
.media-block figcaption{margin-top:12px;font-size:13px;color:var(--muted)}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:44px;padding-left:28px;max-width:820px}
.timeline::before{content:"";position:absolute;left:5px;top:10px;bottom:10px;width:1px;background:var(--line)}
.tl-item{position:relative;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:9px;
  width:11px;height:11px;border-radius:50%;
  background:var(--paper-2);border:2px solid var(--brand);
}
.tl-date{
  display:block;font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--accent);margin-bottom:6px;
}
.tl-title{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:6px}
.tl-text{font-size:15px;line-height:1.9;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){
  .faq-layout{grid-template-columns:1fr 1.55fr;gap:60px}
}
.faq-aside h2{
  position:relative;padding-left:16px;margin-top:12px;
  font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.26;
}
.faq-aside h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:24px;border-radius:2px;background:var(--brand);
}
.faq-aside p{margin-top:16px;font-size:15px;color:var(--muted);max-width:360px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:flex-start;width:100%;gap:14px;
  padding:20px 0;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-num{font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--accent);flex:0 0 22px;padding-top:6px}
.faq-text{flex:1 1 auto}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;margin-top:7px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-panel{max-height:0;overflow:hidden;opacity:0;transition:max-height .22s ease,opacity .22s ease}
.faq-panel.is-open{opacity:1}
.faq-panel p{padding:0 0 22px 36px;font-size:15px;line-height:1.9;color:var(--ink-2);max-width:700px}

/* ---------- CTA ---------- */
.cta-card{
  display:grid;grid-template-columns:1fr;gap:34px;
  background:var(--brand);color:#fff;
  border-radius:var(--radius-card);padding:32px 24px;
}
@media (min-width:1024px){
  .cta-card{grid-template-columns:1fr 1fr;gap:48px;padding:52px}
}
.cta-card h2{color:#fff;font-size:clamp(1.5rem,2.8vw,2.1rem);line-height:1.28}
.cta-card > .cta-copy > p{margin-top:16px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.78);max-width:460px}
.cta-list{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.cta-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:rgba(255,255,255,.82);
}
.cta-list li::before{
  content:"";width:6px;height:6px;margin-top:9px;flex:0 0 6px;
  background:var(--signal);border-radius:1px;
}
.form-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){
  .form-grid{grid-template-columns:1fr 1fr}
  .field-full{grid-column:1 / -1}
}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.68);font-weight:600}
.input{
  width:100%;height:46px;padding:0 14px;
  border:1px solid rgba(255,255,255,.24);border-radius:10px;
  background:rgba(255,255,255,.06);color:#fff;font-size:15px;font-family:inherit;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
textarea.input{height:auto;min-height:104px;padding:12px 14px;line-height:1.75;resize:vertical}
.input::placeholder{color:rgba(255,255,255,.42)}
.input:focus{
  outline:none;border-color:var(--signal);
  box-shadow:0 0 0 2px rgba(216,255,74,.25);
  background:rgba(255,255,255,.1);
}
.form-hint{font-size:12px;color:rgba(255,255,255,.5);margin-top:2px}
.form-actions{margin-top:6px}
@media (max-width:639px){
  .form-actions .btn{width:100%}
}

/* ---------- 交叉链接卡 ---------- */
.xlinks{display:grid;grid-template-columns:1fr;gap:24px;margin-top:44px}
@media (min-width:640px){.xlinks{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.xlinks{grid-template-columns:repeat(3,1fr)}}
.xcard{
  display:flex;flex-direction:column;height:100%;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.xcard:hover{border-color:rgba(14,59,52,.32);box-shadow:var(--shadow-hover);transform:translateY(-1px)}
.xcard-media{aspect-ratio:16/9;overflow:hidden;background:#E9E7DF}
.xcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;filter:saturate(.95)}
.xcard:hover .xcard-media img{transform:scale(1.03)}
.xcard-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.badge{
  align-self:flex-start;
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:rgba(255,122,69,.13);color:#C24E1F;
}
.xcard-title{font-size:17px;font-weight:600;line-height:1.45;color:var(--ink)}
.xcard-text{font-size:14px;line-height:1.8;color:var(--muted);flex:1 1 auto}
.xcard-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.xcard-link span{transition:transform .18s ease;display:inline-block}
.xcard:hover .xcard-link span{transform:translateX(4px)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand);color:rgba(255,255,255,.72);padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}}
.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-logo{display:inline-flex;align-items:center;gap:10px;color:#fff}
.footer-logo .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px}
.footer-col{padding-left:0}
@media (min-width:1024px){
  .footer-col{border-left:1px solid rgba(255,255,255,.12);padding-left:24px}
}
.footer-title{font-size:12px;font-weight:700;letter-spacing:.14em;color:#fff;margin-bottom:10px}
.footer-col a{display:block;padding:11px 0;font-size:14px;color:rgba(255,255,255,.7);line-height:1.5}
.footer-col a:hover{color:#fff}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66)}
.footer-bottom{
  margin-top:38px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:#fff}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:none;background:var(--paper-2);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar .tab-inner{display:grid;grid-template-columns:repeat(4,1fr);height:60px}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;font-size:11px;color:var(--muted);transition:color .18s ease;
}
.tab-item svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab-item.is-active{color:var(--brand);font-weight:600}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:22px;height:2px;background:var(--brand);border-radius:0 0 2px 2px;
}
@media (max-width:767px){
  .mobile-tabbar{display:block}
  body{padding-bottom:150px}
}

/* ---------- 底部固定转化条 ---------- */
.sticky-bar{
  position:fixed;z-index:59;left:0;right:0;bottom:60px;
  display:flex;align-items:center;gap:12px;
  height:56px;padding:0 16px;
  background:var(--paper-2);border-top:1px solid var(--line);
  transform:translateY(140%);opacity:0;
  transition:transform .28s ease,opacity .28s ease;
  pointer-events:none;
}
.sticky-bar.is-visible{transform:translateY(0);opacity:1;pointer-events:auto}
.sticky-bar-text{flex:1 1 auto;font-size:13px;line-height:1.35;color:var(--ink-2)}
@media (min-width:768px){
  .sticky-bar{
    left:auto;right:24px;bottom:24px;width:320px;height:auto;
    flex-direction:column;align-items:stretch;gap:10px;
    padding:16px;border:1px solid var(--line);border-radius:14px;
    box-shadow:var(--shadow-hover);border-top:1px solid var(--line);
  }
  .sticky-bar .btn{width:100%}
  .sticky-bar-text{font-size:13.5px}
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .btn,.xcard,.xcard-media img{transition:none}
  html{scroll-behavior:auto}
}