/* roulang page: index */
:root{
  --orange:#FF7A2F;--orange-deep:#E85D12;--orange-soft:#FFF1E8;
  --teal:#0E9F9A;--teal-soft:#E6F7F5;--yellow:#FFD166;
  --green:#2FA36B;--red:#E5484D;
  --bg:#FFF9F3;--card:#FFFFFF;--dark:#191A1F;
  --text:#23252B;--muted:#6B6F76;--line:#ECE7E1;
  --r-sm:12px;--r-md:16px;--r-lg:20px;--r-pill:999px;
  --sh:0 8px 24px rgba(25,26,31,.06);
  --sh-hover:0 16px 40px rgba(255,122,47,.14);
  --grad:linear-gradient(135deg,#FF8A3D,#FF6B2C);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"HarmonyOS Sans SC","MiSans","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;line-height:1.8;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.wide{max-width:1280px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{margin-bottom:44px;max-width:760px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--orange-deep);letter-spacing:.06em;background:var(--orange-soft);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:16px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange)}
h2.section-title{font-size:clamp(26px,3.2vw,40px);margin-bottom:14px}
.section-sub{color:var(--muted);font-size:17px;line-height:1.85;max-width:680px}
.section-head.center .section-sub{margin:0 auto}
.muted{color:var(--muted)}
/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,249,243,.88);
  backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:var(--grad);
  color:#fff;font-weight:800;font-size:19px;display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(255,122,47,.28)
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-text b{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.14em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{
  position:relative;font-size:15.5px;color:#33353c;padding:8px 2px;font-weight:500;transition:color .2s ease
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;transition:transform .22s ease
}
.nav-links a:hover{color:var(--orange-deep)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--orange-deep);font-weight:700}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--grad);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 8px 20px rgba(255,122,47,.26);transition:transform .2s ease,box-shadow .2s ease,background .2s ease
}
.nav-cta:hover{background:var(--orange-deep);box-shadow:0 12px 26px rgba(232,93,18,.3);transform:translateY(-1px)}
.nav-cta:active{transform:translateY(1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;
  cursor:pointer;padding:0;place-items:center
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;margin:3px auto;transition:transform .25s ease,opacity .2s ease}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:16px;font-weight:600;cursor:pointer;transition:all .22s ease;white-space:nowrap
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(255,122,47,.26)}
.btn-primary:hover{background:var(--orange-deep);box-shadow:0 14px 30px rgba(232,93,18,.3);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--text);border-color:#E2DBD3}
.btn-ghost:hover{background:var(--orange-soft);border-color:#F7C9A9;color:var(--orange-deep)}
.btn-sm{height:42px;padding:0 20px;font-size:15px}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--orange-deep);font-weight:600;font-size:15px;text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px}
.link-arrow{text-decoration-color:rgba(255,122,47,.45)}
.link-arrow:hover{color:var(--orange);text-decoration-color:var(--orange)}
/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 84px;background:linear-gradient(180deg,#FFF9F3 0%,#FFF1E8 62%,#FFF9F3 100%)}
.hero::after{content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(255,209,102,.34),rgba(255,209,102,0) 70%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(32px,5vw,56px);line-height:1.15;margin-bottom:20px}
.hero h1 .hl{color:var(--orange-deep)}
.hero-lead{font-size:18px;color:#4b4e56;max-width:600px;margin-bottom:24px}
.trust-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.trust-chip{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);padding:8px 16px;font-size:13.5px;color:#4b4e56;box-shadow:var(--sh)
}
.dot{width:7px;height:7px;border-radius:50%;flex:0 0 7px}
.dot-g{background:var(--green)}
.dot-o{background:var(--orange)}
.dot-t{background:var(--teal)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-media{position:relative}
.hero-media img{border-radius:var(--r-lg);aspect-ratio:16/9;width:100%;object-fit:cover;box-shadow:0 24px 56px rgba(25,26,31,.14)}
.hero-media .float-card{
  position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px 18px;box-shadow:var(--sh);max-width:250px
}
.float-card b{display:block;font-size:15px;margin-bottom:2px}
.float-card span{font-size:12.5px;color:var(--muted)}
/* ---------- 入口能力 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.entry-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--sh);display:flex;flex-direction:column;gap:12px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#F8D6BE}
.entry-card:hover h3{color:var(--orange-deep)}
.entry-card h3{font-size:19px;transition:color .2s ease}
.entry-card p{font-size:15px;color:var(--muted);line-height:1.8;margin:0}
.entry-card--feature{grid-column:span 2;grid-row:span 2;padding:0;overflow:hidden;gap:0}
.entry-card--feature img{aspect-ratio:16/9;width:100%;object-fit:cover}
.entry-feature-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1}
.icon-box{width:44px;height:44px;border-radius:13px;background:var(--orange-soft);display:grid;place-items:center;color:var(--orange-deep)}
.icon-box svg{width:22px;height:22px}
.icon-box.teal{background:var(--teal-soft);color:var(--teal)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.tag{font-size:12.5px;padding:4px 11px;border-radius:var(--r-pill);background:var(--orange-soft);color:var(--orange-deep);font-weight:600}
.tag.teal{background:var(--teal-soft);color:#0b7d79}
.tag.grey{background:#F5F2EE;color:#6B6F76}
/* ---------- 数据条 ---------- */
.stats-band{background:var(--dark);border-radius:var(--r-lg);padding:44px 40px;display:grid;grid-template-columns:repeat(4,1fr);gap:8px;color:#F5F2EE}
.stat{padding:0 22px;border-left:1px solid rgba(255,255,255,.1)}
.stat:first-child{border-left:none;padding-left:0}
.stat b{display:block;font-family:"Inter","DIN Alternate",system-ui,sans-serif;font-size:clamp(30px,3.4vw,42px);font-weight:800;color:#fff;line-height:1.1;letter-spacing:-.02em}
.stat b i{font-style:normal;color:var(--orange);font-size:.6em;margin-left:2px}
.stat span{display:block;font-size:14px;color:#A9ACB4;margin-top:8px}
/* ---------- 场景 ---------- */
.case-block{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh)}
.case-block img{border-radius:var(--r-md);aspect-ratio:4/3;object-fit:cover;width:100%}
.case-text h2{font-size:clamp(24px,2.6vw,32px);margin:12px 0 14px}
.case-text p{color:var(--muted);font-size:16.5px}
.case-list{margin:18px 0 22px;display:grid;gap:10px}
.case-list li{position:relative;padding-left:24px;font-size:15.5px;color:#3d4048}
.case-list li::before{content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;border-radius:50%;background:var(--orange);opacity:.85}
.case-mini{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:24px}
.mini-card{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px;box-shadow:var(--sh);transition:transform .25s ease,box-shadow .25s ease}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.mini-card img{width:96px;height:96px;flex:0 0 96px;border-radius:var(--r-sm);object-fit:cover}
.mini-card h3{font-size:17px;margin-bottom:6px}
.mini-card p{font-size:14.5px;color:var(--muted);line-height:1.7;margin:0}
/* ---------- 流程 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.steps::before{content:"";position:absolute;left:22px;right:22px;top:19px;height:1px;background:var(--line)}
.step{position:relative;padding-top:56px}
.step-num{
  position:absolute;top:0;left:0;width:40px;height:40px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;font-family:"Inter",system-ui,sans-serif;font-weight:700;font-size:14px;color:var(--muted)
}
.step.is-active .step-num{background:var(--orange);border-color:var(--orange);color:#fff;box-shadow:0 8px 18px rgba(255,122,47,.3)}
.step h3{font-size:19px;margin-bottom:8px}
.step p{font-size:15px;color:var(--muted);line-height:1.8;margin:0}
.step .link-arrow{margin-top:12px;font-size:14px}
.scheme-foot{margin-top:40px;display:flex;flex-wrap:wrap;gap:16px;align-items:center}
/* ---------- 资讯列表 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.news-grid{display:grid;grid-template-columns:1.12fr 1fr;gap:24px}
.news-lead{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh);display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease}
.news-lead:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.news-lead img{aspect-ratio:16/9;width:100%;object-fit:cover}
.news-lead-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-lead h3{font-size:21px;line-height:1.45}
.news-item{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px;box-shadow:var(--sh);transition:transform .22s ease,box-shadow .22s ease}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.news-item img{width:120px;height:96px;flex:0 0 120px;border-radius:var(--r-sm);object-fit:cover}
.news-item-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.news-item h3{font-size:16.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item p{font-size:14px;color:var(--muted);line-height:1.7;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-stack{display:grid;gap:16px;align-content:start}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.meta .sep{width:1px;height:12px;background:var(--line)}
.empty-state{border:1px dashed #E0D8CF;border-radius:var(--r-lg);background:#fff;padding:48px 24px;text-align:center;color:var(--muted);font-size:16px}
/* ---------- FAQ ---------- */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:8px 28px;box-shadow:var(--sh)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-item summary{
  cursor:pointer;list-style:none;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:22px 0;font-size:18px;font-weight:700;line-height:1.5;color:var(--text);transition:color .2s ease
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--orange-deep)}
.faq-item summary .chev{flex:0 0 22px;width:22px;height:22px;color:var(--orange);transition:transform .28s ease;margin-top:3px}
.faq-item[open] summary{color:var(--orange-deep)}
.faq-item[open] summary .chev{transform:rotate(180deg)}
.faq-body{padding:0 0 22px;font-size:16px;line-height:1.85;color:#4b4e56;border-left:3px solid var(--orange-soft);padding-left:18px;margin-left:2px}
/* ---------- 联系 ---------- */
.contact-section{background:linear-gradient(180deg,#FFF9F3,#FFF1E8)}
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start}
.form-card,.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh)}
.form-card h2{font-size:26px;margin-bottom:8px}
.form-card>p{color:var(--muted);font-size:15.5px;margin-bottom:24px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14.5px;font-weight:600;margin-bottom:8px}
.field label .req{color:var(--red);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid #E2DBD3;border-radius:var(--r-sm);padding:13px 15px;background:#FFFDFB;
  font-size:15.5px;transition:border-color .2s ease,box-shadow .2s ease
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#A9AEB6}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--orange);box-shadow:0 0 0 4px rgba(14,159,154,.14)
}
.field.error input,.field.error textarea,.field.error select{border-color:var(--red);background:#FFF7F7}
.field .err-msg{display:none;color:var(--red);font-size:13px;margin-top:6px}
.field.error .err-msg{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--muted);margin:6px 0 22px}
.check-row input{width:18px;height:18px;margin-top:3px;flex:0 0 18px;accent-color:var(--orange)}
.form-note{margin-top:14px;font-size:14px;display:none}
.form-note.ok{display:block;color:var(--green)}
.form-note.bad{display:block;color:var(--red)}
.info-card{background:var(--dark);color:#E9E6E2;border-color:transparent}
.info-card h2{color:#fff;font-size:22px;margin-bottom:16px}
.info-list{display:grid;gap:18px;margin-bottom:24px}
.info-list li{display:flex;gap:12px;font-size:15px;line-height:1.75;color:#C7C4C0}
.info-list li b{display:block;color:#fff;font-size:15.5px;margin-bottom:2px;font-weight:700}
.info-card .rule{height:1px;background:rgba(255,255,255,.12);margin:22px 0}
.info-card .tip{font-size:14px;color:#9A9DA4;line-height:1.8}
/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C7C4C0;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}
.site-footer h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;letter-spacing:.02em}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand b{color:#fff;font-size:16px;line-height:1.3}
.footer-brand em{font-style:normal;display:block;font-size:11.5px;color:#8E929A;letter-spacing:.12em}
.footer-about{font-size:14.5px;line-height:1.85;max-width:320px}
.footer-links{display:grid;gap:11px;font-size:14.5px}
.footer-links a:hover{color:var(--orange)}
.footer-contact{display:grid;gap:11px;font-size:14.5px}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:#8E929A}
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;background:#fff;
  border:1px solid var(--line);display:grid;place-items:center;color:var(--text);cursor:pointer;z-index:50;
  box-shadow:var(--sh);opacity:0;visibility:hidden;transition:all .25s ease
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{border-color:var(--orange);color:var(--orange-deep)}
/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{padding:0 22px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media{order:2}
  .hero-media .float-card{position:static;margin-top:18px;max-width:none}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .entry-card--feature{grid-column:span 2;grid-row:auto}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px}
  .steps::before{display:none}
  .case-block{grid-template-columns:1fr;padding:22px}
  .news-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .nav-links{
    position:fixed;top:72px;left:0;right:0;bottom:0;background:rgba(255,249,243,.99);
    flex-direction:column;align-items:flex-start;gap:0;padding:18px 24px 40px;
    transform:translateX(-100%);transition:transform .3s ease;overflow-y:auto;
    border-top:1px solid var(--line)
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-links a{display:block;width:100%;padding:16px 0;font-size:17px;border-bottom:1px solid var(--line)}
  .nav-links a::after{display:none}
  .nav-cta{height:40px;padding:0 16px;font-size:14.5px}
  .nav-toggle{display:grid}
  body.nav-open .nav-toggle span:nth-child(1){transform:translateY(5px) rotate(45deg)}
  body.nav-open .nav-toggle span:nth-child(2){opacity:0}
  body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
}
@media (max-width:768px){
  body{font-size:16.5px}
  .section{padding:48px 0}
  .section--tight{padding:44px 0}
  .stats-band{grid-template-columns:repeat(2,1fr);padding:32px 24px;gap:26px}
  .stat{padding:0;border-left:none}
  .case-mini{grid-template-columns:1fr}
  .mini-card img{width:80px;height:80px;flex:0 0 80px}
  .news-item{flex-direction:column}
  .news-item img{width:100%;height:170px;flex:auto}
  .faq-list{padding:4px 18px}
  .faq-item summary{font-size:16.5px;padding:18px 0}
  .form-card,.info-card{padding:24px}
  .hero-actions .btn{width:100%}
  .news-head{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .entry-grid{grid-template-columns:1fr}
  .entry-card--feature{grid-column:span 1}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .brand-text b{font-size:15.5px}
  .brand-text em{letter-spacing:.08em}
  .stats-band{grid-template-columns:1fr;gap:22px}
  .to-top{right:16px;bottom:16px}
}

/* roulang page: article */
:root{
  --brand:#FF7A2F;
  --brand-deep:#E85D12;
  --brand-soft:#FFF1E8;
  --teal:#0E9F9A;
  --teal-soft:#E6F7F5;
  --yellow:#FFD166;
  --success:#2FA36B;
  --danger:#E5484D;
  --bg:#FFF9F3;
  --card:#FFFFFF;
  --ink:#191A1F;
  --text:#23252B;
  --muted:#6B6F76;
  --line:#ECE7E1;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh:0 8px 24px rgba(25,26,31,.06);
  --sh-hover:0 16px 40px rgba(255,122,47,.14);
  --container:1200px;
  --wide:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","MiSans","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-deep)}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--ink);letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.container.wide{max-width:var(--wide)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,249,243,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,#FF8A3D,#FF6B2C);
  color:#fff;font-weight:800;font-size:19px;
  box-shadow:0 6px 16px rgba(255,122,47,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.1em}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-links a{position:relative;font-size:15px;font-weight:500;color:var(--text);padding:6px 0}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;transition:right .25s ease;
}
.nav-links a:hover::after,.nav-links a.active::after{right:0}
.nav-links a.active{color:var(--brand-deep);font-weight:700}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 20px;border-radius:var(--r-pill);
  background:linear-gradient(135deg,#FF8A3D,#FF6B2C);color:#fff;
  font-size:14px;font-weight:600;white-space:nowrap;
  box-shadow:0 8px 20px rgba(255,122,47,.24);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(232,93,18,.28)}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;margin-left:auto;padding:0;
  background:#fff;border:1px solid var(--line);border-radius:13px;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;margin:0 auto;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{padding:22px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;padding:0;font-size:14px;color:var(--muted)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;min-width:0}
.breadcrumb li + li::before{content:"/";color:#CFC8C0}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand-deep)}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:600;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article head ---------- */
.article-head{padding:30px 0 30px;border-bottom:1px solid var(--line);margin-bottom:36px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  background:var(--brand-soft);border:1px solid #FFDCC7;
  color:var(--brand-deep);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.article-head h1{
  font-size:clamp(29px,4.2vw,46px);line-height:1.2;
  margin:18px 0 18px;max-width:22em;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:var(--muted)}
.article-meta > span{display:inline-flex;align-items:center}
.article-meta > span + span::before{
  content:"";display:inline-block;width:4px;height:4px;border-radius:50%;
  background:#D9D3CC;margin-right:18px;
}
.article-cover{
  margin:0 0 44px;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- layout ---------- */
.article-layout{
  display:grid;grid-template-columns:262px minmax(0,1fr);
  gap:52px;align-items:start;padding-bottom:24px;
}
.article-aside{position:sticky;top:96px}
.toc-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 20px 22px;box-shadow:var(--sh);
}
.toc-title{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--muted);margin-bottom:12px}
.toc-list{display:flex;flex-direction:column;border-left:2px solid var(--line)}
.toc-list a{
  display:block;padding:7px 0 7px 12px;margin-left:-2px;
  font-size:14px;line-height:1.5;color:var(--muted);
  border-left:2px solid transparent;transition:color .2s ease,border-color .2s ease;
}
.toc-list a:hover,.toc-list a.active{color:var(--brand-deep);border-left-color:var(--brand);font-weight:600}
.toc-back{display:inline-block;margin-top:18px;font-size:14px;font-weight:600;color:var(--teal)}
.toc-back:hover{color:var(--brand-deep)}

/* ---------- article body ---------- */
.article-main{min-width:0}
.article-body{
  max-width:820px;font-size:17.5px;line-height:1.85;color:#2B2D33;
  overflow-wrap:anywhere;
}
.article-body > * + *{margin-top:1.15em}
.article-body h2{
  font-size:28px;line-height:1.35;font-weight:800;color:var(--ink);
  margin:2.1em 0 .7em;padding-left:14px;border-left:4px solid var(--brand);
  border-radius:2px;scroll-margin-top:96px;
}
.article-body h3{
  font-size:22px;line-height:1.4;font-weight:700;color:var(--ink);
  margin:1.8em 0 .6em;scroll-margin-top:96px;
}
.article-body h4{font-size:18px;margin:1.5em 0 .5em}
.article-body p{margin:0}
.article-body strong{color:var(--ink);font-weight:700}
.article-body ul,.article-body ol{padding-left:1.35em}
.article-body li{margin:.45em 0;line-height:1.8}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-weight:700}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;
  background:var(--brand-soft);border-left:3px solid var(--brand);
  border-radius:0 var(--r-sm) var(--r-sm) 0;color:#4C3A2E;
}
.article-body blockquote p{margin:0}
.article-body ul blockquote{margin:0}
.article-body a{color:var(--teal);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-deep)}
.article-body img{border-radius:var(--r-md);margin:1.6em auto;box-shadow:var(--sh)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:#FFF6EF;font-weight:700;color:var(--ink)}
.article-body code{
  background:#F6F1EB;border-radius:6px;padding:2px 6px;font-size:15px;
  font-family:"Inter",system-ui,monospace;
}

.empty-state{
  max-width:820px;padding:56px 26px;text-align:center;
  background:var(--card);border:1px dashed #E4DCD4;border-radius:var(--r-md);
}
.empty-state h2{font-size:20px;border:0;padding:0;margin:0 0 10px}
.empty-state p{color:var(--muted);font-size:15px}
.empty-state a{
  display:inline-flex;margin-top:20px;padding:11px 24px;border-radius:var(--r-pill);
  background:linear-gradient(135deg,#FF8A3D,#FF6B2C);color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 8px 20px rgba(255,122,47,.24);
}
.empty-state a:hover{background:var(--brand-deep);color:#fff}

/* ---------- tags & post nav ---------- */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  max-width:820px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
}
.tag{
  display:inline-flex;align-items:center;padding:6px 15px;border-radius:var(--r-pill);
  background:var(--card);border:1px solid var(--line);font-size:13px;color:var(--muted);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag:hover{border-color:#FFD0B0;background:var(--brand-soft);color:var(--brand-deep)}
.post-nav{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;
  max-width:820px;margin-top:32px;
}
.post-nav a{
  display:block;padding:18px 20px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh);
  transition:transform .25s ease,box-shadow .25s ease,border-color .2s ease;
}
.post-nav a:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#FFD9C2;color:inherit}
.post-nav span{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.post-nav b{display:block;font-size:16px;font-weight:700;color:var(--ink);line-height:1.5}
.post-nav a:hover b{color:var(--brand-deep)}

/* ---------- sections ---------- */
.section{padding:72px 0}
.section + .section{padding-top:0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:30px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3}
.section-head p{margin-top:8px;font-size:15px;color:var(--muted)}
.link-more{
  font-size:15px;font-weight:600;color:var(--brand-deep);
  border-bottom:1px solid transparent;transition:border-color .2s ease;
}
.link-more:hover{border-bottom-color:currentColor}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh);
  transition:transform .28s ease,box-shadow .28s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#FFD9C2}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.card-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:20px 22px 22px}
.card-body .badge{align-self:flex-start;font-size:12px;padding:4px 11px}
.card-body h3{font-size:18px;line-height:1.45;transition:color .2s ease}
.card:hover .card-body h3{color:var(--brand-deep)}
.card-body p{font-size:15px;line-height:1.7;color:var(--muted)}
.card-meta{
  display:flex;align-items:center;gap:12px;margin-top:auto;
  padding-top:6px;font-size:13px;color:var(--muted);
}

/* ---------- CTA ---------- */
.cta-section{padding:72px 0 84px}
.cta-panel{
  display:grid;grid-template-columns:1.15fr .85fr;gap:36px;
  background:var(--ink);color:#EFE9E3;border-radius:var(--r-lg);
  padding:46px;box-shadow:0 24px 60px rgba(25,26,31,.18);
}
.cta-panel h2{font-size:clamp(22px,2.7vw,30px);line-height:1.3;color:#fff;margin-bottom:10px}
.cta-lead{font-size:15px;line-height:1.8;color:#B7B1AA;margin-bottom:26px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:14px;color:#D8D2CB}
.field .req{color:var(--yellow)}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-sm);
  background:#fff;border:1px solid #E4DED7;color:var(--text);
  font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#A9A29A}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(14,159,154,.18);
}
.field textarea{min-height:112px;resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.7;color:#B7B1AA;margin:6px 0 20px}
.check input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .15s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#FF8A3D,#FF6B2C);color:#fff;
  box-shadow:0 10px 24px rgba(255,122,47,.28);
}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:disabled{opacity:.55;cursor:not-allowed;transform:none}
.form-note{margin-top:14px;font-size:13px;color:#8FCFC6;min-height:20px}
.cta-side{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);padding:26px;
}
.cta-side h3{color:#fff;font-size:18px;margin-bottom:16px}
.cta-list{display:flex;flex-direction:column;gap:14px;list-style:none;padding:0}
.cta-list li{display:flex;gap:12px;font-size:14px;line-height:1.75;color:#C4BEB7}
.cta-list li strong{display:block;color:#fff;font-weight:600;font-size:14.5px}
.dot{flex:0 0 auto;width:9px;height:9px;border-radius:50%;background:var(--brand);margin-top:9px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#EDE7E0;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.site-footer h3{font-size:15px;color:#fff;letter-spacing:.04em;margin-bottom:16px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand b{display:flex;flex-direction:column;line-height:1.2;font-size:16px;color:#fff}
.footer-brand em{font-style:normal;font-size:12px;color:#9C958D;letter-spacing:.1em}
.footer-about{font-size:14px;line-height:1.85;color:#B7B1AA}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:#C8C1B9}
.footer-links a:hover{color:var(--brand)}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14px;line-height:1.7;color:#C8C1B9}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  margin-top:42px;padding-top:20px;border-top:1px solid #2A2B31;
  font-size:13px;color:#8E8880;
}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;
  background:#fff;border:1px solid var(--line);color:var(--ink);
  box-shadow:var(--sh);cursor:pointer;
  opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease,color .2s ease,border-color .2s ease;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 20px}
  .article-layout{grid-template-columns:1fr;gap:30px}
  .article-aside{position:static}
  .toc-card{padding:16px 18px}
  .toc-list{flex-direction:row;flex-wrap:wrap;gap:6px 14px;border-left:0}
  .toc-list a{padding:4px 0;margin-left:0;border-left:0;border-bottom:2px solid transparent}
  .toc-list a:hover,.toc-list a.active{border-left:0;border-bottom-color:var(--brand)}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:1fr;padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .nav-links{
    position:fixed;left:0;right:0;top:72px;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    padding:8px 20px 20px;background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 18px 32px rgba(25,26,31,.08);
    transform:translateY(-10px);opacity:0;pointer-events:none;
    transition:transform .25s ease,opacity .25s ease;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{width:100%;padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--brand-deep)}
  .nav-links a.active::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--brand);margin-right:8px;vertical-align:middle}
}
@media (max-width:768px){
  body{font-size:16px}
  .nav-wrap{height:64px}
  .nav-links{top:64px}
  .brand-text b{font-size:15.5px}
  .section{padding:56px 0}
  .article-head{padding:24px 0 24px;margin-bottom:28px}
  .article-body{font-size:16.5px;line-height:1.85}
  .article-body h2{font-size:23px}
  .article-body h3{font-size:19.5px}
  .card-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .cta-panel{padding:26px 22px;border-radius:var(--r-md)}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .to-top{right:16px;bottom:18px}
  .breadcrumb [aria-current="page"]{max-width:100%;white-space:normal}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .article-body{font-size:16px}
  .article-meta{font-size:13px}
  .article-meta > span + span::before{margin-right:12px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-side{padding:20px}
}

/* roulang page: category1 */
:root{
  --brand:#FF7A2F;
  --brand-deep:#E85D12;
  --brand-soft:#FFF1E8;
  --teal:#0E9F9A;
  --teal-soft:#E6F7F5;
  --teal-deep:#0B7C78;
  --yellow:#FFD166;
  --ok:#2FA36B;
  --danger:#E5484D;
  --bg:#FFF9F3;
  --bg-alt:#FFFDFA;
  --card:#FFFFFF;
  --ink:#191A1F;
  --text:#23252B;
  --muted:#6B6F76;
  --line:#ECE7E1;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(25,26,31,.06);
  --sh-2:0 16px 40px rgba(255,122,47,.14);
  --container:1200px;
  --nav-h:72px;
  --font-cn:"HarmonyOS Sans SC","MiSans","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.3px;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:6px;}
.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;
  padding:10px 18px;border-radius:0 0 var(--r-sm) 0;z-index:200;
}
.skip-link:focus{left:0;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.container.wide{max-width:1280px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(255,249,243,.9);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,#FF8A3D,#FF6B2C);
  color:#fff;font-weight:800;font-size:18px;letter-spacing:0;
  box-shadow:0 6px 16px rgba(255,122,47,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16;}
.brand-text b{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.2px;}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:2px;}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto;}
.nav-links a{
  position:relative;font-size:15px;color:var(--text);padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav-links a:hover{color:var(--brand-deep);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand-deep);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 22px;border-radius:var(--r-pill);
  background:linear-gradient(135deg,#FF8A3D,#FF6B2C);
  color:#fff;font-size:14px;font-weight:600;white-space:nowrap;
  box-shadow:0 8px 20px rgba(255,122,47,.24);
  transition:box-shadow .24s ease,transform .2s ease,background .24s ease;
}
.nav-cta:hover{background:linear-gradient(135deg,#FF7A2F,#E85D12);box-shadow:0 12px 26px rgba(232,93,18,.3);transform:translateY(-1px);}
.nav-cta:active{transform:translateY(1px);}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;padding:0 11px;margin-left:auto;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s ease,opacity .2s ease;}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0;}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,249,243,.97) 0%,rgba(255,249,243,.9) 46%,rgba(255,241,232,.62) 100%);
}
.cat-hero .container{position:relative;z-index:2;}
.cat-hero-inner{padding:56px 0 64px;max-width:780px;}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted);margin-bottom:26px;flex-wrap:wrap;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand-deep);}
.breadcrumb .sep{color:#C9C2BA;}
.breadcrumb .current{color:var(--text);font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-deep);
  background:var(--brand-soft);border:1px solid #FFDCC6;
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:20px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);}
.cat-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.16;
  letter-spacing:-1px;
  margin-bottom:20px;
}
.cat-hero h1 .hl{
  background:linear-gradient(135deg,#FF8A3D,#FF6B2C);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero .lead{font-size:18px;line-height:1.85;color:var(--muted);max-width:660px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.trust-bar{display:flex;flex-wrap:wrap;gap:12px 20px;font-size:13.5px;color:var(--muted);}
.trust-bar li{display:inline-flex;align-items:center;gap:8px;}
.trust-bar .ok-dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(47,163,107,.14);}
.trust-bar .teal-dot{width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(14,159,154,.14);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .24s ease,box-shadow .24s ease,transform .18s ease,border-color .24s ease,color .24s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#FF8A3D,#FF6B2C);color:#fff;
  box-shadow:0 10px 24px rgba(255,122,47,.26);
}
.btn-primary:hover{background:linear-gradient(135deg,#FF7A2F,#E85D12);box-shadow:0 14px 30px rgba(232,93,18,.32);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(232,93,18,.28);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:var(--brand-soft);border-color:#FFD9C0;color:var(--brand-deep);transform:translateY(-2px);}
.btn:focus-visible{outline:2px solid var(--teal);outline-offset:3px;}
.btn[disabled]{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--brand-deep);border-bottom:1px solid rgba(232,93,18,.32);
  padding-bottom:2px;transition:color .2s ease,border-color .2s ease;
}
.text-link:hover{color:var(--brand);border-color:var(--brand);}
.text-link .arrow{transition:transform .22s ease;}
.text-link:hover .arrow{transform:translateX(3px);}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section.alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section.tight{padding:72px 0;}
.sec-head{max-width:740px;margin-bottom:52px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-head h2{font-size:clamp(26px,3.2vw,40px);line-height:1.25;margin:14px 0 16px;}
.sec-head p{color:var(--muted);font-size:17px;line-height:1.85;}
.sec-head .eyebrow{margin-bottom:0;}

.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}

/* ---------- stat strip ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.stat-item{padding:30px 28px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-item .num{font-family:var(--font-num);font-size:34px;font-weight:700;color:var(--brand-deep);line-height:1.1;letter-spacing:-.5px;}
.stat-item .num small{font-size:16px;font-weight:600;margin-left:2px;color:var(--brand);}
.stat-item .label{display:block;margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- cards ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#FFD9C0;}
.card h3{font-size:20px;line-height:1.4;margin-bottom:12px;transition:color .22s ease;}
.card:hover h3{color:var(--brand-deep);}
.card p{color:var(--muted);font-size:15.5px;line-height:1.85;}
.ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-deep);margin-bottom:18px;
}
.ico.teal{background:var(--teal-soft);color:var(--teal-deep);}
.ico svg{width:22px;height:22px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
  display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand-deep);
}
.tag.teal{background:var(--teal-soft);color:var(--teal-deep);}
.tag.yellow{background:#FFF6DC;color:#8A6412;}

/* ---------- split block ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.split-media{border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);}
.split-media img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;}
.check-list{display:flex;flex-direction:column;gap:18px;margin-top:28px;}
.check-list li{display:flex;gap:14px;align-items:flex-start;}
.check-list .tick{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;margin-top:4px;
  background:var(--teal-soft);color:var(--teal-deep);display:grid;place-items:center;
  font-size:13px;font-weight:800;
}
.check-list b{display:block;font-size:16px;color:var(--ink);margin-bottom:4px;}
.check-list span{font-size:15px;color:var(--muted);line-height:1.8;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:8px;}
.step{position:relative;padding-top:56px;}
.step::after{
  content:"";position:absolute;top:16px;left:46px;right:-24px;height:2px;
  background:linear-gradient(90deg,#FFD9C0,var(--line));
}
.step:last-child::after{display:none;}
.step .dot{
  position:absolute;top:0;left:0;width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;font-family:var(--font-num);font-size:13px;font-weight:700;
  background:linear-gradient(135deg,#FF8A3D,#FF6B2C);color:#fff;
  box-shadow:0 8px 18px rgba(255,122,47,.3);
}
.step h3{font-size:18px;margin-bottom:10px;}
.step p{color:var(--muted);font-size:15px;line-height:1.8;}

/* ---------- table ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;box-shadow:var(--sh-1);-webkit-overflow-scrolling:touch;
}
table{width:100%;border-collapse:collapse;min-width:680px;}
th{
  background:#FFF6EF;text-align:left;font-size:14px;font-weight:700;color:var(--ink);
  padding:16px 22px;border-bottom:1px solid var(--line);white-space:nowrap;
}
td{
  padding:18px 22px;border-bottom:1px solid var(--line);
  font-size:15px;line-height:1.8;color:var(--text);vertical-align:top;
}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover{background:#FFFCF9;}
td .mini-tag{
  display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand-deep);
}
td .mini-tag.teal{background:var(--teal-soft);color:var(--teal-deep);}
td .mini-tag.yellow{background:#FFF6DC;color:#8A6412;}

/* ---------- env matrix ---------- */
.env-card{
  display:flex;gap:20px;align-items:flex-start;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.env-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#FFD9C0;}
.env-card .env-ico{
  flex-shrink:0;width:44px;height:44px;border-radius:14px;
  background:var(--teal-soft);color:var(--teal-deep);display:grid;place-items:center;
}
.env-card .env-ico svg{width:22px;height:22px;}
.env-card h3{font-size:17px;margin-bottom:8px;}
.env-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.env-card .tag-row{margin-top:12px;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;text-align:left;cursor:pointer;
  font-size:18px;line-height:1.5;font-weight:600;color:var(--ink);
  padding:24px 52px 24px 26px;position:relative;border-radius:0;
  transition:color .2s ease,background .2s ease;
}
.faq-q:hover{color:var(--brand-deep);}
.faq-q::before{
  content:"";position:absolute;left:0;top:30px;width:8px;height:8px;border-radius:50%;
  background:var(--line);transition:background .22s ease;
}
.faq-item.open .faq-q::before{background:var(--brand);}
.faq-q::after{
  content:"";position:absolute;right:22px;top:33px;width:10px;height:10px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform .26s ease,border-color .22s ease;
}
.faq-item.open .faq-q::after{transform:rotate(-135deg);border-color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a p{
  padding:0 60px 24px 26px;margin:0;color:var(--muted);
  font-size:16px;line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;background:var(--ink);border-radius:var(--r-xl);
  padding:56px;display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center;
  box-shadow:0 24px 60px rgba(25,26,31,.18);
}
.cta-panel::before{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,47,.34),rgba(255,122,47,0) 68%);
}
.cta-panel > *{position:relative;z-index:2;}
.cta-panel h2{color:#fff;font-size:clamp(24px,2.8vw,34px);line-height:1.3;margin-bottom:16px;}
.cta-panel p{color:#B9B5B1;font-size:16px;line-height:1.85;margin-bottom:28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-aside{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-lg);padding:26px;display:flex;flex-direction:column;gap:16px;
}
.cta-aside .row{display:flex;justify-content:space-between;gap:14px;font-size:14px;color:#CFCBC7;border-bottom:1px dashed rgba(255,255,255,.12);padding-bottom:14px;}
.cta-aside .row:last-child{border-bottom:0;padding-bottom:0;}
.cta-aside .row b{color:#fff;font-weight:600;}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.related-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#FFD9C0;}
.related-card h3{font-size:18px;margin-bottom:10px;transition:color .22s ease;}
.related-card:hover h3{color:var(--brand-deep);}
.related-card p{font-size:14.5px;color:var(--muted);line-height:1.8;margin-bottom:16px;}
.related-card .meta{font-size:13px;color:#9A948E;display:flex;align-items:center;gap:8px;}
.related-card .meta .sep{color:var(--line);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#E9E5E1;padding:76px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:44px;}
.footer-brand{display:flex;align-items:center;gap:11px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand b{display:flex;flex-direction:column;line-height:1.2;font-size:16px;font-weight:800;color:#fff;}
.footer-brand em{font-style:normal;font-size:11px;color:#8E8A86;letter-spacing:2px;font-weight:400;}
.footer-about{color:#B9B5B1;font-size:14px;line-height:1.85;margin-top:18px;max-width:360px;}
.site-footer h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:20px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{color:#B9B5B1;font-size:14px;}
.footer-links a:hover{color:var(--brand);}
.footer-contact{display:flex;flex-direction:column;gap:12px;color:#B9B5B1;font-size:14px;line-height:1.8;}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8E8A86;
}
.to-top{
  width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.18);
  background:transparent;color:#E9E5E1;display:grid;place-items:center;cursor:pointer;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.to-top:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{padding:0 22px;}
}
@media (max-width:1024px){
  .section{padding:76px 0;}
  .nav-links{gap:22px;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 24px;}
  .step:nth-child(2)::after{display:none;}
  .split{grid-template-columns:1fr;gap:36px;}
  .split-media{order:-1;}
  .cta-panel{grid-template-columns:1fr;padding:44px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .related-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;left:0;right:0;top:64px;
    flex-direction:column;align-items:flex-start;gap:6px;
    background:#FFF9F3;border-bottom:1px solid var(--line);
    padding:16px 22px 24px;margin:0;
    box-shadow:0 20px 40px rgba(25,26,31,.08);
    transform:translateY(-130%);transition:transform .3s ease;
    max-height:calc(100vh - 64px);overflow-y:auto;z-index:85;
  }
  .site-header.nav-open .nav-links{transform:translateY(0);}
  .nav-links a{font-size:16px;padding:12px 0;width:100%;border-bottom:1px solid var(--line);}
  .nav-links a:last-child{border-bottom:0;}
  .nav-links a::after{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-wrap{height:64px;}
  .brand-mark{width:34px;height:34px;border-radius:12px;font-size:16px;}
  .brand-text b{font-size:15px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .cat-hero-inner{padding:40px 0 48px;}
  .cat-hero h1{letter-spacing:-.5px;}
  .cat-hero .lead{font-size:16.5px;}
  .hero-actions .btn{width:100%;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);padding:24px;}
  .stat-item:last-child{border-bottom:0;}
  .steps{grid-template-columns:1fr;gap:28px;}
  .step::after{display:none;}
  .step{padding-top:0;padding-left:50px;}
  .step .dot{top:0;left:0;}
  .faq-q{font-size:16.5px;padding:20px 44px 20px 20px;}
  .faq-q::before{top:26px;}
  .faq-q::after{right:16px;top:29px;}
  .faq-a p{padding:0 44px 20px 20px;font-size:15px;}
  .cta-panel{padding:32px 24px;border-radius:var(--r-lg);}
  .footer-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .section.tight{padding:48px 0;}
}
@media (max-width:480px){
  .container{padding:0 18px;}
  .card{padding:22px;}
  .env-card{padding:20px;gap:14px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --brand:#FF7A2F;
  --brand-deep:#E85D12;
  --brand-soft:#FFF1E8;
  --teal:#0E9F9A;
  --teal-soft:#E6F7F5;
  --yellow:#FFD166;
  --ok:#2FA36B;
  --danger:#E5484D;
  --bg:#FFF9F3;
  --card:#FFFFFF;
  --ink:#23252B;
  --ink-deep:#191A1F;
  --muted:#6B6F76;
  --line:#ECE7E1;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(25,26,31,.06);
  --sh-2:0 16px 40px rgba(255,122,47,.14);
  --grad:linear-gradient(135deg,#FF8A3D,#FF6B2C);
  --font:"HarmonyOS Sans SC","MiSans","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:Inter,"DIN Alternate",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container.wide{max-width:1280px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,249,243,.9);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--grad);
  color:#fff;font-weight:800;font-size:19px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(255,122,47,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-size:16px;font-weight:800;letter-spacing:.02em;color:var(--ink)}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink);padding:6px 0;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--grad);border-radius:2px;transition:width .22s ease;
}
.nav-links a:hover{color:var(--brand-deep)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--brand-deep);font-weight:600}
.nav-links a.active::after{width:100%}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--grad);color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 8px 20px rgba(255,122,47,.24);transition:.2s ease;white-space:nowrap;
}
.nav-cta:hover{background:var(--brand-deep);box-shadow:0 12px 26px rgba(232,93,18,.3)}
.nav-cta:active{transform:translateY(1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--ink);border-radius:2px;transition:.22s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}

/* ---------- 分类首屏 ---------- */
.cat-hero{position:relative;overflow:hidden;padding:56px 0 68px;border-bottom:1px solid var(--line)}
.cat-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,249,243,.97) 0%,rgba(255,249,243,.9) 44%,rgba(255,249,243,.4) 100%);
}
.cat-hero-inner{position:relative;z-index:2;max-width:820px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumbs a{transition:color .2s ease}
.crumbs a:hover{color:var(--brand-deep)}
.crumbs .sep{color:#CFC7BF}
.crumbs .current{color:var(--ink);font-weight:600}
.cat-hero h1{
  font-size:clamp(32px,4.6vw,52px);
  line-height:1.18;font-weight:800;letter-spacing:-.01em;color:var(--ink);
}
.cat-hero h1 .hl{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--muted);max-width:660px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--muted);
}
.badge i{width:7px;height:7px;border-radius:50%;background:var(--teal);display:block}
.badge.warm i{background:var(--brand)}
.badge.gold i{background:var(--yellow)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;line-height:1;
  border:1px solid transparent;transition:.2s ease;white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(255,122,47,.24)}
.btn-primary:hover{background:var(--brand-deep);box-shadow:0 14px 32px rgba(232,93,18,.3)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--sh-1)}
.btn-ghost:hover{background:var(--brand-soft);border-color:#FFD9C0;color:var(--brand-deep)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--brand-deep);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:clamp(26px,3.2vw,38px);line-height:1.25;font-weight:800;letter-spacing:-.01em}
.section-head p{margin-top:16px;font-size:16.5px;color:var(--muted);line-height:1.85}
.section-head.split{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none}
.section-head.split .txt{max-width:640px}
.text-link{
  font-size:15px;font-weight:600;color:var(--brand-deep);
  border-bottom:1px solid rgba(232,93,18,.35);padding-bottom:2px;transition:.2s ease;
}
.text-link:hover{color:var(--brand);border-color:var(--brand)}

/* ---------- 资讯速览卡片 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#FFD9C0}
.news-card:hover h3{color:var(--brand-deep)}
.news-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-card h3{font-size:20px;line-height:1.4;font-weight:700;transition:color .2s ease}
.news-card p{font-size:15px;line-height:1.8;color:var(--muted)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--r-pill);background:var(--brand-soft);
  color:var(--brand-deep);font-size:12.5px;font-weight:600;
}
.tag.teal{background:var(--teal-soft);color:#0B7A76}
.tag.gold{background:#FFF6DC;color:#8A6410}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px}
.card-foot time{font-size:13px;color:var(--muted);font-family:var(--font-num)}
.arrow-link{font-size:14px;font-weight:600;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px}
.arrow-link::after{content:"→";transition:transform .2s ease}
.arrow-link:hover::after{transform:translateX(3px)}

/* ---------- 安全自查深色区 ---------- */
.safety{background:var(--ink-deep);color:#F2EEE9;position:relative;overflow:hidden}
.safety::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,47,.22),transparent 68%);
}
.safety .container{position:relative;z-index:2}
.safety .eyebrow{color:var(--yellow)}
.safety .eyebrow::before{background:var(--yellow)}
.safety h2{font-size:clamp(26px,3.2vw,38px);line-height:1.25;font-weight:800;color:#fff}
.safety .lead{margin-top:16px;font-size:16.5px;line-height:1.85;color:#B7B2AC;max-width:700px}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:0 48px;margin-top:40px}
.check-list li{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid rgba(255,255,255,.09)}
.check-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:rgba(255,122,47,.16);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;margin-top:3px;
}
.check-list b{display:block;font-size:16.5px;font-weight:700;color:#fff;margin-bottom:6px}
.check-list p{font-size:14.5px;line-height:1.75;color:#B7B2AC}

/* ---------- 异常处理步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:8px;position:relative}
.step{position:relative;padding:34px 26px 28px 0}
.step::before{
  content:"";position:absolute;top:52px;left:44px;right:0;height:1px;background:var(--line);
}
.step:last-child::before{display:none}
.step-no{
  width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--muted);
  position:relative;z-index:2;transition:.24s ease;
}
.step:hover .step-no{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 10px 22px rgba(255,122,47,.28)}
.step h3{margin-top:22px;font-size:19px;font-weight:700}
.step p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--muted);max-width:250px}
.step .step-hint{display:inline-flex;margin-top:14px;font-size:13px;font-weight:600;color:var(--teal)}

/* ---------- 礼包与活动 ---------- */
.gift-wrap{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:center}
.gift-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.gift-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.gift-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:18px 22px;
  background:linear-gradient(180deg,transparent,rgba(25,26,31,.78));
  color:#fff;font-size:13.5px;line-height:1.6;
}
.gift-list{display:flex;flex-direction:column;gap:0}
.gift-list li{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
.gift-list li:first-child{padding-top:0}
.gift-list .num{
  font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--brand);
  flex:0 0 auto;width:34px;padding-top:2px;
}
.gift-list b{display:block;font-size:17px;font-weight:700;margin-bottom:6px}
.gift-list p{font-size:14.8px;line-height:1.8;color:var(--muted)}
.inline-note{
  margin-top:24px;padding:16px 20px;border-radius:var(--r-md);
  background:var(--teal-soft);border:1px solid #C9EBE8;
  font-size:14.5px;line-height:1.8;color:#0B7A76;
}

/* ---------- 客服支持 ---------- */
.support-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.support-card{
  display:flex;gap:18px;padding:24px;border-radius:var(--r-lg);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.support-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#FFD9C0}
.sup-ico{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;
}
.sup-ico svg{width:22px;height:22px}
.support-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.support-card p{font-size:14.8px;line-height:1.8;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);margin-top:8px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:18px;font-weight:600;line-height:1.5;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-deep)}
.faq-item[open] summary{color:var(--brand-deep)}
.faq-ico{
  flex:0 0 auto;position:relative;width:24px;height:24px;border-radius:50%;
  border:1.5px solid var(--line);transition:.22s ease;
}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;background:var(--muted);border-radius:2px;transition:.22s ease;
}
.faq-ico::before{width:10px;height:1.6px;left:5.5px;top:10.4px}
.faq-ico::after{width:1.6px;height:10px;left:10.4px;top:5.5px}
.faq-item[open] .faq-ico{border-color:var(--brand);transform:rotate(90deg)}
.faq-item[open] .faq-ico::before{background:var(--brand)}
.faq-item[open] .faq-ico::after{opacity:0}
.faq-body{padding:0 0 24px;max-width:860px;font-size:16px;line-height:1.85;color:var(--muted)}

/* ---------- 联系 CTA ---------- */
.cta-wrap{
  display:grid;grid-template-columns:1.15fr .85fr;gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
}
.cta-form{padding:44px}
.cta-form h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:800}
.cta-form > p{margin-top:12px;font-size:15.5px;line-height:1.8;color:var(--muted)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:28px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--ink)}
.field label .req{color:var(--danger);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#FFFDFB;
  font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;outline:none;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#A9AEB5}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,159,154,.16);
}
.field.error input,.field.error textarea{border-color:var(--danger)}
.field .err-msg{font-size:13px;color:var(--danger);display:none}
.field.error .err-msg{display:block}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);line-height:1.7;margin-top:4px}
.agree input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand)}
.form-note{margin-top:14px;font-size:14px;font-weight:600;color:var(--ok);display:none}
.form-note.show{display:block}
.cta-side{
  background:linear-gradient(180deg,#FFF4EC,#FFF9F3);
  border-left:1px solid var(--line);
  padding:44px;display:flex;flex-direction:column;gap:26px;
}
.cta-side h3{font-size:18px;font-weight:700}
.info-list{display:flex;flex-direction:column;gap:16px}
.info-list li{display:flex;flex-direction:column;gap:4px}
.info-list span{font-size:13px;color:var(--muted)}
.info-list b{font-size:15.5px;font-weight:600}
.side-tip{
  margin-top:auto;padding:16px 18px;border-radius:var(--r-md);
  background:#fff;border:1px dashed #FFD9C0;
  font-size:14px;line-height:1.8;color:var(--muted);
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:#EFEAE4;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:72px 0 44px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:11px}
.footer-brand b{font-size:16px;font-weight:800;color:#fff;line-height:1.35;display:flex;flex-direction:column}
.footer-brand em{font-style:normal;font-size:12px;font-weight:500;color:#9C9791;letter-spacing:.05em;margin-top:2px}
.footer-about{font-size:14.5px;line-height:1.85;color:#A8A39D;max-width:340px}
.footer-grid h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14.5px;color:#A8A39D;transition:color .2s ease}
.footer-links a:hover{color:var(--brand)}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14.5px;color:#A8A39D;line-height:1.7}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.09);
  padding:22px 0 30px;font-size:13px;color:#8C8781;
}
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
  display:flex;align-items:center;justify-content:center;
  color:var(--ink);font-size:18px;transition:.22s ease;
}
.to-top:hover{color:var(--brand-deep);border-color:#FFD9C0;transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .step p{max-width:none}
}
@media (max-width:1024px){
  .section{padding:76px 0}
  .news-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .step{padding:30px 22px 24px 0}
  .step::before{display:none}
  .gift-wrap{grid-template-columns:1fr;gap:36px}
  .cta-wrap{grid-template-columns:1fr}
  .cta-side{border-left:0;border-top:1px solid var(--line)}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;top:64px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--bg);border-bottom:1px solid var(--line);
    padding:8px 24px 20px;
    box-shadow:0 18px 36px rgba(25,26,31,.1);
    opacity:0;transform:translateY(-10px);pointer-events:none;
    transition:opacity .22s ease,transform .22s ease;
  }
  .nav-links.open{opacity:1;transform:none;pointer-events:auto}
  .nav-links a{padding:15px 0;border-bottom:1px solid var(--line);width:100%}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--brand-deep)}
  .nav-wrap{height:64px}
  .nav-cta{height:38px;padding:0 16px;font-size:13.5px}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .section-head.split{flex-direction:column;align-items:flex-start;gap:14px}
  .cat-hero{padding:40px 0 52px}
  .cat-hero::after{background:linear-gradient(180deg,rgba(255,249,243,.96) 0%,rgba(255,249,243,.92) 62%,rgba(255,249,243,.78) 100%)}
  .news-grid{grid-template-columns:1fr}
  .check-list{grid-template-columns:1fr;gap:0}
  .steps{grid-template-columns:1fr}
  .support-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .cta-form,.cta-side{padding:28px 22px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;padding:52px 0 32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .to-top{right:16px;bottom:16px;width:42px;height:42px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .brand-text em{display:none}
  .nav-cta{display:none}
  .section-head h2{font-size:25px}
  .news-card .body{padding:18px 18px 20px}
  .faq-item summary{font-size:16.5px;padding:18px 0}
}