/* roulang page: index */
:root{
  --brand-900:#0B3B31;
  --brand-700:#0E4B3F;
  --brand-500:#1A6B58;
  --brand-100:#E4EFE9;
  --accent-600:#D9822B;
  --accent-100:#FBF0DF;
  --cta-600:#E2552B;
  --cta-700:#C4441F;
  --bg:#FAF7F1;
  --surface:#FFFFFF;
  --surface-2:#F2ECE2;
  --line:#E5DFD4;
  --ink-900:#16211E;
  --ink-600:#48584F;
  --ink-400:#8A9691;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(11,59,49,.05);
  --shadow-2:0 14px 30px -14px rgba(11,59,49,.22);
  --shadow-3:0 24px 60px -20px rgba(11,59,49,.30);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC",serif;
  --container:1200px;
  --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;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2{font-family:var(--font-display);font-weight:600;letter-spacing:.2px;}
h1{font-size:clamp(30px,3.2vw,48px);line-height:1.25;}
h2{font-size:28px;line-height:1.35;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
:focus-visible{outline:3px solid rgba(226,85,43,.35);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--dense{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{display:inline-block;}
.section-head h2{margin-top:12px;}
.section-head p{margin-top:14px;color:var(--ink-600);font-size:15px;line-height:1.85;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;line-height:1;letter-spacing:.14em;
  color:var(--brand-700);background:var(--brand-100);
  border-radius:999px;padding:8px 14px;font-weight:600;
}
.eyebrow--light{background:rgba(255,255,255,.12);color:#E9F3EE;}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;line-height:1;border-radius:999px;
  padding:6px 12px;font-weight:600;background:var(--brand-100);color:var(--brand-700);
}
.badge--cta{background:var(--cta-600);color:#fff;}
.badge--gold{background:var(--accent-100);color:#8A5210;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  border:1.5px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn--primary{background:var(--cta-600);color:#fff;box-shadow:0 1px 2px rgba(11,59,49,.05);}
.btn--primary:hover{background:var(--cta-700);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn--primary:active{transform:translateY(0);box-shadow:0 1px 2px rgba(11,59,49,.05);}
.btn--ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700);}
.btn--ghost:hover{background:var(--brand-100);transform:translateY(-1px);}
.btn--ghost-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff;}
.btn--ghost-light:hover{background:#fff;color:var(--brand-900);border-color:#fff;transform:translateY(-1px);}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn--block{width:100%;}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}
.textlink{
  color:var(--brand-700);font-weight:600;font-size:14px;
  border-bottom:1px solid rgba(14,75,63,.45);padding-bottom:2px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.textlink:hover{color:var(--cta-600);border-color:var(--cta-600);}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;transition:box-shadow .24s var(--ease);}
.site-header.is-stuck{box-shadow:0 8px 26px -18px rgba(11,59,49,.45);}
.brandbar{border-bottom:1px solid var(--line);}
.brandbar__inner{display:flex;align-items:center;gap:20px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo__mark{width:34px;height:34px;flex-shrink:0;}
.logo__text{font-family:var(--font-display);font-size:17px;font-weight:600;color:var(--brand-900);letter-spacing:.4px;white-space:nowrap;}
.brandbar__claim{
  font-size:13px;color:var(--ink-400);white-space:nowrap;
  padding-left:18px;border-left:1px solid var(--line);
}
.brandbar__side{margin-left:auto;display:flex;align-items:center;gap:18px;}
.brandbar__side span{font-size:13px;color:var(--ink-600);white-space:nowrap;}
.lang-switch{
  font-size:13px;color:var(--brand-700);border:1px solid var(--line);
  border-radius:999px;padding:6px 14px;background:var(--surface-2);cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.lang-switch:hover{border-color:var(--brand-500);color:var(--brand-900);}
.brandbar__cta{margin-left:6px;}
.hamburger{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:10px;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.is-open span:nth-child(2){opacity:0;}
.hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.brandpanel{
  display:none;border-bottom:1px solid var(--line);background:#fff;
}
.brandpanel.is-open{display:block;}
.brandpanel__inner{padding:16px 24px 22px;display:flex;flex-direction:column;gap:12px;}
.brandpanel__inner a,.brandpanel__inner span{font-size:14px;color:var(--ink-600);}
.channelbar{background:var(--brand-900);}
.channelbar__inner{display:flex;align-items:stretch;gap:4px;height:52px;overflow-x:auto;scrollbar-width:none;}
.channelbar__inner::-webkit-scrollbar{display:none;}
.channel{
  position:relative;display:inline-flex;align-items:center;
  padding:0 20px;font-size:14.5px;color:rgba(255,255,255,.78);white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.channel:hover{color:#fff;background:rgba(255,255,255,.06);}
.channel.is-active{color:#fff;font-weight:600;box-shadow:inset 8px 0 0 -6px rgba(255,255,255,.14),inset -8px 0 0 -6px rgba(255,255,255,.14);}
.channel.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:3px;
  background:var(--cta-600);border-radius:3px 3px 0 0;
}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#0E4B3F 0%,#123B33 60%,#0B322A 100%);
  color:#fff;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.035) 0 1px,transparent 1px 9px);
}
.hero__inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;
  min-height:560px;padding-top:72px;padding-bottom:72px;
}
.hero__copy{max-width:620px;}
.hero h1{margin-top:22px;color:#fff;max-width:16em;}
.hero__sub{
  margin-top:20px;font-size:17px;color:rgba(255,255,255,.82);line-height:1.8;max-width:26em;
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.trust{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.trust li{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(255,255,255,.86);
  border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:8px 16px;
  background:rgba(255,255,255,.04);
}
.trust li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-600);}
.hero__visual{position:relative;}
.hero__visual > img{
  width:100%;height:420px;object-fit:cover;
  border-radius:16px;border:1px solid rgba(217,130,43,.35);
}
.hero__card{
  position:absolute;left:-32px;bottom:-28px;width:250px;
  background:#fff;border-radius:var(--radius-card);padding:14px;
  box-shadow:var(--shadow-3);
}
.hero__card img{width:100%;height:120px;object-fit:cover;border-radius:10px;}
.hero__card p{
  margin-top:12px;font-size:13.5px;color:var(--ink-600);text-align:center;letter-spacing:.06em;
}
.hero__stat{
  display:flex;gap:26px;margin-top:56px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.14);flex-wrap:wrap;
}
.hero__stat div strong{
  display:block;font-family:var(--font-display);font-size:26px;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.hero__stat div span{font-size:13px;color:rgba(255,255,255,.66);}

/* ============ Steps ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:28px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}
.step:nth-child(1){margin-top:0;}
.step:nth-child(2){margin-top:24px;}
.step:nth-child(3){margin-top:12px;}
.step__num{
  font-family:var(--font-display);font-size:56px;line-height:1;
  color:var(--accent-600);font-variant-numeric:tabular-nums;
}
.step h3{margin-top:16px;}
.step p{margin-top:12px;font-size:14.5px;color:var(--ink-600);line-height:1.85;min-height:52px;}
.step__link{margin-top:20px;display:inline-block;}
.steps__note{
  margin-top:32px;padding:20px 24px;border:1px dashed var(--line);border-radius:var(--radius-card);
  background:var(--surface-2);font-size:14px;color:var(--ink-600);
}

/* ============ Compare ============ */
.compare-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
table.compare{width:100%;border-collapse:collapse;font-size:14.5px;}
table.compare th,table.compare td{
  padding:18px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle;
}
table.compare thead th{
  background:var(--surface-2);font-size:14px;color:var(--brand-900);
  font-weight:600;position:sticky;top:72px;z-index:3;
}
table.compare tbody th{
  font-weight:600;color:var(--ink-900);width:180px;background:var(--surface);
  position:sticky;left:0;z-index:2;
}
table.compare tbody td{color:var(--ink-600);font-variant-numeric:tabular-nums;}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:none;}
table.compare .col-recommend{
  background:var(--accent-100);color:var(--ink-900);font-weight:600;
  border-top:3px solid var(--cta-600);
}
table.compare thead th.col-recommend{border-top:3px solid var(--cta-600);}
.compare-legend{
  display:flex;flex-wrap:wrap;gap:18px;margin-top:20px;font-size:13.5px;color:var(--ink-400);
}

/* ============ Limited band ============ */
.limited{
  background:linear-gradient(135deg,#0E4B3F 0%,#123B33 60%,#0B322A 100%);
  color:#fff;position:relative;overflow:hidden;
}
.limited::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.03) 0 1px,transparent 1px 10px);
}
.limited__inner{
  position:relative;z-index:2;
  display:flex;align-items:center;gap:40px;padding:44px 0;flex-wrap:wrap;
}
.countdown{display:flex;gap:12px;}
.countdown__box{
  width:70px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  border-radius:10px;padding:10px 0;text-align:center;
}
.countdown__box strong{
  display:block;font-family:var(--font-display);font-size:26px;line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.countdown__box span{font-size:12px;color:rgba(255,255,255,.64);}
.limited__text{flex:1;min-width:240px;}
.limited__text h2{font-size:24px;color:#fff;}
.limited__text p{margin-top:8px;font-size:14.5px;color:rgba(255,255,255,.72);}
.limited__qr{
  width:110px;height:110px;border-radius:12px;background:#fff;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  border:1px solid rgba(255,255,255,.2);
}
.limited__qr img{width:80px;height:80px;object-fit:cover;border-radius:8px;}
.limited__qr figcaption{display:none;}

/* ============ Posts ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}
.post-card__media{position:relative;display:block;overflow:hidden;aspect-ratio:16/9;background:var(--surface-2);}
.post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.post-card:hover .post-card__media img{transform:scale(1.04);}
.post-card__media .badge{position:absolute;left:12px;bottom:12px;}
.post-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.post-card h3{font-size:17px;line-height:1.5;font-weight:600;}
.post-card h3 a{transition:color .2s var(--ease);}
.post-card:hover h3 a{color:var(--brand-700);}
.post-card h3 a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card__desc{
  margin-top:10px;font-size:14px;color:var(--ink-600);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__foot{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-400);font-variant-numeric:tabular-nums;
}
.post-card__foot .textlink{font-size:13px;}
.empty-state{
  grid-column:1/-1;border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;background:var(--surface-2);color:var(--ink-600);
}
.empty-state svg{margin:0 auto 14px;}
.empty-state p{font-size:15px;}
.empty-state .textlink{display:inline-block;margin-top:14px;}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.faq{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  transition:border-color .2s var(--ease);
}
.faq[open]{border-color:var(--brand-100);}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:15.5px;font-weight:600;color:var(--ink-900);
  transition:color .2s var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--brand-700);}
.faq[open] summary{color:var(--brand-700);}
.faq summary i{
  flex-shrink:0;width:18px;height:18px;position:relative;transition:transform .2s var(--ease);
}
.faq summary i::before,.faq summary i::after{
  content:"";position:absolute;background:var(--brand-500);border-radius:2px;
}
.faq summary i::before{left:0;top:8px;width:18px;height:2px;}
.faq summary i::after{left:8px;top:0;width:2px;height:18px;transition:opacity .2s var(--ease);}
.faq[open] summary i{transform:rotate(90deg);}
.faq[open] summary i::after{opacity:0;}
.faq__body{padding:0 22px 22px 42px;font-size:14.5px;color:var(--ink-600);line-height:1.85;}

/* ============ Form ============ */
.contact{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-1);overflow:hidden;
}
.contact__grid{display:grid;grid-template-columns:5fr 7fr;gap:0;}
.contact__aside{
  background:linear-gradient(135deg,#0E4B3F 0%,#123B33 60%,#0B322A 100%);
  color:#fff;padding:44px 36px;position:relative;overflow:hidden;
}
.contact__aside h2{font-size:26px;color:#fff;}
.contact__aside p{margin-top:16px;font-size:14.5px;color:rgba(255,255,255,.74);line-height:1.9;}
.contact__aside ul{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.contact__aside li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.86);}
.contact__aside li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-600);margin-top:9px;flex-shrink:0;}
.contact__form{padding:36px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1/-1;}
.field label{font-size:14px;color:var(--ink-900);font-weight:600;}
.field label em{color:var(--cta-600);font-style:normal;margin-left:3px;}
.field input,.field select,.field textarea{
  height:46px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;padding:0 14px;font-size:14.5px;color:var(--ink-900);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:110px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(26,107,88,.12);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:#C0392B;box-shadow:0 0 0 3px rgba(192,57,43,.10);
}
.field__hint{font-size:13px;color:var(--ink-400);}
.field__error{font-size:13px;color:#C0392B;display:none;}
.field.has-error .field__error{display:block;}
.form-alert{
  display:none;margin-bottom:18px;padding:12px 16px;border-radius:10px;
  font-size:14px;background:#E4EFE9;color:#1F5C48;border:1px solid #C6E0D6;
}
.form-alert.is-visible{display:block;}
.form-actions{margin-top:22px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.form-actions .field__hint{font-size:13px;color:var(--ink-400);}

/* ============ Footer ============ */
.site-footer{
  background:linear-gradient(135deg,#0E4B3F 0%,#123B33 60%,#0B322A 100%);
  color:rgba(255,255,255,.82);margin-top:96px;
}
.footer__grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:72px 0 48px;
}
.footer__brand .logo__text{color:#fff;}
.footer__brand p{margin-top:18px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);max-width:30em;}
.footer h3{font-size:15px;color:var(--accent-600);margin-bottom:18px;font-family:var(--font-sans);font-weight:600;}
.footer__links li + li{margin-top:6px;}
.footer__links a,.footer__links span{
  font-size:14px;color:rgba(255,255,255,.82);display:inline-block;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer__links a:hover{color:#fff;transform:translateX(2px);}
.footer__qr{display:flex;gap:16px;margin-top:20px;}
.footer__qr img{width:92px;height:92px;object-fit:cover;border-radius:10px;border:1px solid rgba(255,255,255,.16);}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ To top ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:12px;
  background:var(--brand-900);color:#fff;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease),background-color .2s var(--ease);
  z-index:70;box-shadow:var(--shadow-2);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-500);}

/* ============ Responsive ============ */
@media (max-width:1279px){
  .hero__card{left:-16px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .section--dense{padding:64px 0;}
  .brandbar__claim{display:none;}
  .brandbar__side span.brandbar__tel{display:none;}
  .hero__inner{grid-template-columns:1fr;gap:44px;min-height:auto;padding-top:56px;padding-bottom:64px;}
  .hero__visual > img{height:320px;}
  .hero__card{left:16px;bottom:-24px;width:210px;}
  .hero__card img{height:100px;}
  .hero__stat{margin-top:40px;}
  .steps{grid-template-columns:1fr;gap:18px;}
  .step:nth-child(2),.step:nth-child(3){margin-top:0;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .faq-grid{grid-template-columns:1fr;}
  .contact__grid{grid-template-columns:1fr;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 36px;}
  table.compare thead th{position:static;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section--dense{padding:48px 0;}
  h2{font-size:23px;}
  .brandbar__inner{height:64px;gap:12px;}
  .logo__text{font-size:15px;white-space:normal;max-width:52vw;line-height:1.3;}
  .brandbar__side{display:none;}
  .brandbar__cta{display:none;}
  .hamburger{display:flex;margin-left:auto;}
  .channelbar__inner{height:48px;}
  .channel{padding:0 14px;font-size:14px;}
  .channel.is-active::after{left:12px;right:12px;}
  .hero__actions .btn{width:100%;}
  .hero__visual > img{height:240px;}
  .hero__card{position:static;width:100%;margin-top:16px;box-shadow:var(--shadow-1);}
  .hero__stat{gap:18px;}
  .hero__stat div strong{font-size:22px;}
  .post-grid{grid-template-columns:1fr;}
  .limited__inner{flex-direction:column;align-items:flex-start;gap:24px;padding:36px 0;}
  .limited__qr{align-self:flex-start;}
  .compare-wrap{border:none;background:transparent;box-shadow:none;overflow:visible;}
  table.compare,table.compare tbody,table.compare tr,table.compare td,table.compare th{display:block;width:100%;}
  table.compare thead{display:none;}
  table.compare tbody tr{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:16px 18px;margin-bottom:14px;box-shadow:var(--shadow-1);
  }
  table.compare tbody th{
    position:static;background:transparent;border:none;padding:0 0 10px;
    font-size:16px;color:var(--brand-900);
  }
  table.compare tbody td{
    display:flex;justify-content:space-between;gap:16px;
    padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;
  }
  table.compare tbody td:last-child{border-bottom:none;}
  table.compare tbody td::before{
    content:attr(data-label);color:var(--ink-400);font-weight:600;font-size:13.5px;
  }
  table.compare .col-recommend{background:transparent;border-top:none;}
  table.compare tbody tr td.col-recommend{color:var(--cta-700);font-weight:600;}
  .form-grid{grid-template-columns:1fr;}
  .contact__form{padding:26px 20px;}
  .contact__aside{padding:32px 20px;}
  .footer__grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px;}
  .footer__bottom{flex-direction:column;gap:6px;}
  .to-top{right:16px;bottom:16px;}
  .faq__body{padding:0 18px 20px 18px;}
  .faq summary{padding:18px;font-size:15px;}
}
@media (max-width:360px){
  body{font-size:15px;}
  .countdown__box{width:60px;}
  .hero h1{font-size:27px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B3B31;
  --brand-700:#0E4B3F;
  --brand-500:#1A6B58;
  --brand-100:#E4EFE9;
  --accent-600:#D9822B;
  --accent-100:#FBF0DF;
  --cta-600:#E2552B;
  --cta-700:#C4441F;
  --bg:#FAF7F1;
  --surface:#FFFFFF;
  --surface-2:#F2ECE2;
  --line:#E5DFD4;
  --ink-900:#16211E;
  --ink-600:#48584F;
  --ink-400:#8A9691;
  --success:#2F7D63;
  --warn:#C98A0E;
  --error:#C0392B;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(11,59,49,.05);
  --shadow-2:0 14px 30px -14px rgba(11,59,49,.22);
  --shadow-3:0 24px 60px -20px rgba(11,59,49,.30);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-700);text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.35}
p{margin:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid rgba(226,85,43,.35);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-900);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:200}
.skip-link:focus{left:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),background .2s cubic-bezier(.2,.7,.3,1),color .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s cubic-bezier(.2,.7,.3,1),border-color .2s cubic-bezier(.2,.7,.3,1);
  white-space:nowrap;cursor:pointer;
}
.btn--cta{background:var(--cta-600);color:#fff;box-shadow:var(--shadow-1)}
.btn--cta:hover{background:var(--cta-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--cta:active{transform:translateY(0)}
.btn--ghost{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn--ghost:hover{background:var(--brand-100)}
.btn--light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn--light:hover{background:#fff;color:var(--brand-900);border-color:#fff}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.text-link{color:var(--brand-700);border-bottom:1px solid rgba(14,75,63,.35);padding-bottom:1px;transition:color .2s,border-color .2s}
.text-link:hover{color:var(--cta-600);border-color:rgba(226,85,43,.5)}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff}
.site-header.is-stuck{box-shadow:0 8px 24px -16px rgba(11,59,49,.35)}
.header__top{position:relative;background:#fff;border-bottom:1px solid var(--line)}
.header__inner{display:flex;align-items:center;gap:16px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand-900);font-size:17px;font-weight:700;letter-spacing:.2px}
.logo__mark{display:inline-flex;flex:none}
.logo__text{white-space:nowrap}
.header__claim{
  font-size:13px;color:var(--ink-400);
  padding-left:16px;margin-left:8px;border-left:1px solid var(--line);
  white-space:nowrap;
}
.header__aside{margin-left:auto;display:flex;align-items:center;gap:18px}
.header__link{font-size:14px;color:var(--ink-600);transition:color .2s}
.header__link:hover{color:var(--cta-600)}
.header__lang{font-size:13px;color:var(--ink-400);border:1px solid var(--line);border-radius:999px;padding:4px 12px;white-space:nowrap}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  background:#fff;border:1px solid var(--line);border-radius:8px;
  padding:0;align-items:center;justify-content:center;flex-direction:column;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);margin:2px 0;transition:transform .2s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 频道行 */
.channelbar{background:var(--brand-900);color:#fff}
.channelbar__inner{display:flex;align-items:stretch;gap:6px;height:52px;overflow-x:auto;scrollbar-width:none}
.channelbar__inner::-webkit-scrollbar{display:none}
.channel{
  display:inline-flex;align-items:center;padding:0 16px;white-space:nowrap;
  font-size:15px;color:rgba(255,255,255,.78);
  border-bottom:3px solid transparent;
  transition:color .2s,background .2s,border-color .2s;
}
.channel:hover{color:#fff;background:rgba(255,255,255,.06)}
.channel.is-active{
  color:#fff;font-weight:600;border-bottom-color:var(--cta-600);
  box-shadow:inset 8px 0 12px -12px rgba(255,255,255,.85),inset -8px 0 12px -12px rgba(255,255,255,.85);
}

/* 页面 Hero */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#0E4B3F 0%,#123B33 60%,#0B322A 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.22;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.035) 0 2px,transparent 2px 9px);
}
.page-hero__inner{position:relative;z-index:2;padding:44px 0 52px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.68);margin-bottom:22px}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:rgba(255,255,255,.35)}
.crumb a{color:rgba(255,255,255,.72);transition:color .2s}
.crumb a:hover{color:#fff}
.kicker{
  display:inline-block;font-size:12px;letter-spacing:.08em;
  padding:6px 14px;border-radius:999px;
  background:rgba(217,130,43,.16);color:#F0C48A;
  border:1px solid rgba(217,130,43,.38);
}
.page-hero h1{
  font-family:var(--font-display);
  font-size:clamp(30px,3.2vw,48px);
  line-height:1.25;margin:18px 0 14px;font-weight:600;
}
.page-hero__sub{font-size:16px;color:rgba(255,255,255,.84);max-width:660px;line-height:1.8}
.anchor-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.anchor-tabs a{
  font-size:14px;padding:8px 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.24);color:rgba(255,255,255,.86);
  transition:background .2s,color .2s,border-color .2s;
}
.anchor-tabs a:hover{background:rgba(255,255,255,.13);color:#fff;border-color:rgba(255,255,255,.5)}

/* 通用板块 */
.section{padding:88px 0}
.section--alt{background:var(--surface)}
.section--tight{padding-top:64px}
.section__head{max-width:740px;margin-bottom:44px}
.section__eyebrow{display:block;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--accent-600);margin-bottom:10px}
.section__title{font-family:var(--font-display);font-size:28px;line-height:1.35;color:var(--brand-900)}
.section__desc{margin-top:16px;color:var(--ink-600);font-size:15.5px}

/* 图文卡 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.media-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s,border-color .22s;
}
.media-card:hover{transform:translateY(-2px);border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.media-card__pic{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.media-card__pic img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.media-card:hover .media-card__pic img{transform:scale(1.04)}
.media-card__body{padding:24px}
.media-card__body h3{font-size:19px;color:var(--brand-900);margin-bottom:10px}
.media-card__body p{font-size:14.5px;color:var(--ink-600);line-height:1.85}
.tag{display:inline-block;font-size:12px;line-height:1;padding:5px 10px;border-radius:999px;background:var(--brand-100);color:var(--brand-700);margin-bottom:12px}
.tag--accent{background:var(--accent-100);color:#9A5A12}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{
  padding:28px 24px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);transition:border-color .22s,box-shadow .22s,transform .22s;
}
.step:hover{border-color:var(--brand-100);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.step__num{
  display:block;font-family:var(--font-display);font-size:40px;line-height:1;
  color:var(--accent-600);margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;color:var(--brand-900);margin-bottom:10px}
.step p{font-size:14px;color:var(--ink-600);line-height:1.8}

/* 场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.scene{
  display:grid;grid-template-columns:170px 1fr;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:transform .22s,box-shadow .22s,border-color .22s;
}
.scene:hover{transform:translateY(-2px);border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.scene__pic{overflow:hidden;background:var(--surface-2)}
.scene__pic img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.scene:hover .scene__pic img{transform:scale(1.04)}
.scene__body{padding:24px}
.scene__body h3{font-size:18px;color:var(--brand-900);margin-bottom:8px}
.scene__body p{font-size:14.5px;color:var(--ink-600);line-height:1.85}
.scene__body .text-link{display:inline-block;margin-top:12px;font-size:14px}

/* 对照表 */
.table-wrap{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);overflow:auto}
.compare{min-width:660px}
.compare th,.compare td{padding:18px 20px;font-size:14.5px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.compare thead th{background:var(--surface-2);color:var(--brand-900);font-size:14px;font-weight:600}
.compare tbody tr:last-child td{border-bottom:none}
.compare td:first-child{color:var(--brand-900);font-weight:600;white-space:nowrap}
.compare td{color:var(--ink-600)}
.compare__hint{margin-top:16px;font-size:13.5px;color:var(--ink-400)}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;align-items:start}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  overflow:hidden;transition:border-color .2s;
}
.faq-item[open]{border-color:var(--brand-100)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:15.5px;font-weight:600;color:var(--brand-900);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex:none;width:8px;height:8px;
  border-right:2px solid var(--ink-400);border-bottom:2px solid var(--ink-400);
  transform:rotate(45deg);transition:transform .2s,border-color .2s;margin-top:-4px;
}
.faq-item[open] summary{color:var(--brand-700)}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--brand-700);margin-top:2px}
.faq-body{padding:0 22px 20px 22px;font-size:14.5px;color:var(--ink-600);line-height:1.85}

/* 咨询条 */
.cta-band{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-band__inner{display:flex;align-items:center;gap:40px;padding:56px 0}
.cta-band__text{max-width:680px}
.cta-band h2{font-family:var(--font-display);font-size:24px;color:var(--brand-900);margin-bottom:12px}
.cta-band p{font-size:15px;color:var(--ink-600)}
.cta-band__actions{margin-left:auto;display:flex;gap:12px;flex:none}

/* 页脚 */
.site-footer{background:var(--brand-900);color:#fff;padding-top:72px}
.footer__grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer__brand .logo{color:#fff;margin-bottom:18px}
.footer__brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:360px}
.footer__qr{display:flex;gap:12px;margin-top:22px}
.footer__qr img{width:88px;height:88px;object-fit:cover;border-radius:10px;border:1px solid rgba(255,255,255,.16)}
.footer h3{font-size:15px;font-weight:600;color:var(--accent-600);margin-bottom:16px}
.footer__links li{margin-bottom:2px}
.footer__links a,.footer__links span{display:inline-block;font-size:14px;line-height:2;color:rgba(255,255,255,.82);transition:color .2s,transform .2s}
.footer__links a:hover{color:#fff;transform:translateX(2px)}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;
  display:inline-flex;align-items:center;justify-content:center;
  border:none;border-radius:12px;background:var(--brand-900);color:#fff;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;
  transition:opacity .24s,visibility .24s,background .2s,transform .2s;z-index:70;
}
.to-top.is-show{opacity:1;visibility:visible}
.to-top:hover{background:var(--brand-700);transform:translateY(-2px)}
.to-top svg{width:18px;height:18px}

@media (max-width:1279px){
  .section{padding:80px 0}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .page-hero__inner{padding:38px 0 44px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band__inner{flex-direction:column;align-items:flex-start;gap:24px}
  .cta-band__actions{margin-left:0}
}
@media (max-width:860px){
  .header__inner{height:64px;gap:12px}
  .header__claim{display:none}
  .nav-toggle{display:flex}
  .header__aside{
    position:absolute;top:100%;left:0;right:0;z-index:80;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:6px 24px 18px;box-shadow:var(--shadow-2);
  }
  .header__aside.is-open{display:flex}
  .header__link{padding:14px 0;border-bottom:1px solid var(--line);font-size:15px}
  .header__lang{align-self:flex-start;margin-top:14px}
  .header__aside .btn{width:100%;margin-top:14px}
  .site-header{position:static}
  .header__top{position:sticky;top:0;z-index:60}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:52px 0}
  .section__head{margin-bottom:30px}
  .section__title{font-size:23px}
  .page-hero__inner{padding:30px 0 36px}
  .page-hero__sub{font-size:15px}
  .anchor-tabs{gap:8px;margin-top:22px}
  .anchor-tabs a{font-size:13px;padding:7px 13px}
  .grid-3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .scene{grid-template-columns:1fr}
  .scene__pic{aspect-ratio:16/9}
  .faq-grid{grid-template-columns:1fr}
  .btn{width:100%;height:44px}
  .cta-band__actions{width:100%;flex-direction:column}
  .footer__grid{grid-template-columns:1fr;gap:30px}
  .footer__bottom{flex-direction:column;gap:6px}
  .to-top{right:16px;bottom:16px;width:44px;height:44px}
  .compare th,.compare td{padding:14px 16px;font-size:14px}
}
@media (max-width:520px){
  .logo{font-size:15px}
  .logo__mark svg{width:30px;height:30px}
  .channel{font-size:14px;padding:0 13px}
  .media-card__body{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B3B31;
  --brand-700:#0E4B3F;
  --brand-500:#1A6B58;
  --brand-100:#E4EFE9;
  --accent-600:#D9822B;
  --accent-100:#FBF0DF;
  --cta-600:#E2552B;
  --cta-700:#C4441F;
  --bg:#FAF7F1;
  --surface:#FFFFFF;
  --surface-2:#F2ECE2;
  --line:#E5DFD4;
  --ink-900:#16211E;
  --ink-600:#48584F;
  --ink-400:#8A9691;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(11,59,49,.05);
  --shadow-2:0 14px 30px -14px rgba(11,59,49,.22);
  --shadow-3:0 24px 60px -20px rgba(11,59,49,.30);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC",serif;
  --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;background:var(--bg);color:var(--ink-900);font-family:var(--font-sans);font-size:16px;line-height:1.8}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2{font-family:var(--font-display);font-weight:600}
:focus-visible{outline:3px solid rgba(226,85,43,.35);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--radius-btn);border:1.5px solid transparent;font-size:16px;font-weight:600;cursor:pointer;transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);text-align:center}
.btn--cta{background:var(--cta-600);color:#fff;box-shadow:var(--shadow-1)}
.btn--cta:hover{background:var(--cta-700);transform:translateY(-1px);box-shadow:0 14px 30px -14px rgba(196,68,31,.65)}
.btn--cta:active{transform:translateY(0)}
.btn--ghost{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn--ghost:hover{background:var(--brand-100)}
.btn--onDark{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn--onDark:hover{background:#fff;color:var(--brand-900)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--block{width:100%}

/* 顶部品牌行 */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease)}
.site-header.is-stuck{box-shadow:0 10px 24px -18px rgba(11,59,49,.55)}
.topbar__inner{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo__mark{display:inline-flex;width:34px;height:34px}
.logo__text{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--brand-900);white-space:nowrap}
.topbar__claim{font-size:14px;color:var(--ink-600);padding-left:18px;border-left:1px solid var(--line);white-space:nowrap}
.topbar__meta{margin-left:auto;display:flex;align-items:center;gap:18px}
.topbar__info{font-size:14px;color:var(--ink-600);white-space:nowrap}
.topbar__toggle{display:none;width:44px;height:44px;margin-left:auto;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius-btn);flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.topbar__toggle span{display:block;width:18px;height:1.8px;background:var(--brand-900);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.topbar__toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.8px) rotate(45deg)}
.topbar__toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.topbar__toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.8px) rotate(-45deg)}

/* 频道行 */
.channelbar{background:var(--brand-900)}
.channelbar__inner{display:flex;align-items:stretch;height:52px;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channelbar__inner::-webkit-scrollbar{display:none}
.channel{position:relative;display:inline-flex;align-items:center;padding:0 18px;font-size:15px;color:rgba(255,255,255,.76);white-space:nowrap;transition:color .2s var(--ease),background-color .2s var(--ease)}
.channel:hover{color:#fff;background:rgba(255,255,255,.06)}
.channel.is-active{color:#fff;font-weight:600}
.channel.is-active::after{content:"";position:absolute;left:8px;right:8px;bottom:0;height:3px;background:var(--cta-600);box-shadow:0 0 10px rgba(226,85,43,.75)}

/* 频道首屏 */
.page-hero{position:relative;overflow:hidden;padding:60px 0 54px;background:linear-gradient(135deg,#0E4B3F 0%,#123B33 60%,#0B322A 100%);color:#fff}
.page-hero__bg{position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.webp");background-size:cover;background-position:center;opacity:.17}
.page-hero__lines{position:absolute;inset:0;background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.035) 0 2px,transparent 2px 9px)}
.page-hero__inner{position:relative;z-index:1;max-width:840px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.65);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.8)}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.breadcrumb span[aria-current]{color:#fff}
.page-hero__eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;color:var(--accent-600);margin-bottom:14px}
.page-hero__eyebrow::before{content:"";width:24px;height:1.5px;background:var(--accent-600)}
.page-hero h1{font-size:clamp(30px,3.2vw,46px);line-height:1.25;color:#fff}
.page-hero__sub{margin-top:18px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);max-width:640px}
.anchor-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14)}
.anchor-tags a{display:inline-flex;align-items:center;height:34px;padding:0 15px;border:1px solid rgba(255,255,255,.22);border-radius:999px;font-size:13.5px;color:rgba(255,255,255,.86);transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
.anchor-tags a:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.4)}

/* 板块 */
.section{padding:88px 0}
.section--alt{background:var(--surface)}
.section--tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head__eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;color:var(--accent-600);margin-bottom:12px}
.section-head__eyebrow::before{content:"";width:20px;height:1.5px;background:var(--accent-600)}
.section-head h2{font-size:28px;line-height:1.35;color:var(--brand-900)}
.section-head p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--ink-600)}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none}

/* 功能卡 */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feature-card{display:flex;gap:20px;padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.feature-card:hover{transform:translateY(-2px);border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.feature-card__no{flex:0 0 auto;width:44px;height:44px;border-radius:10px;background:var(--brand-100);color:var(--brand-700);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:19px;font-weight:600;font-variant-numeric:tabular-nums}
.feature-card h3{font-size:18px;line-height:1.5;color:var(--brand-900);font-weight:700}
.feature-card p{margin-top:8px;font-size:15px;line-height:1.8;color:var(--ink-600)}
.feature-card__meta{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;background:var(--surface-2);color:var(--ink-600);font-size:12.5px;line-height:1}
.tag--accent{background:var(--accent-100);color:#8C5215}

/* 版本线 */
.lane-rail{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.lane-card{position:relative;padding:30px 26px 26px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease)}
.lane-card:nth-child(2){margin-top:20px}
.lane-card:nth-child(3){margin-top:36px}
.lane-card:hover{border-color:var(--brand-100);border-style:solid;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.lane-card__no{font-family:var(--font-display);font-size:56px;line-height:1;color:var(--accent-600);font-variant-numeric:tabular-nums}
.lane-card h3{margin-top:14px;font-size:19px;color:var(--brand-900)}
.lane-card p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-600)}
.lane-card__list{margin-top:16px;display:grid;gap:8px}
.lane-card__list li{position:relative;padding-left:16px;font-size:14.5px;line-height:1.7;color:var(--ink-600)}
.lane-card__list li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:50%;background:var(--brand-500)}
.lane-card__link{display:inline-flex;align-items:center;gap:6px;margin-top:20px;font-size:14.5px;font-weight:600;color:var(--brand-700);border-bottom:1px solid var(--brand-700);padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease)}
.lane-card__link:hover{color:var(--cta-600);border-color:var(--cta-600)}

/* 图文速查 */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.split__media{position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-2)}
.split__media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .3s var(--ease)}
.split__media:hover img{transform:scale(1.04)}
.split__badge{position:absolute;left:16px;bottom:16px;display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:999px;background:rgba(11,59,49,.86);color:#fff;font-size:12.5px}
.check-list{display:grid;gap:14px;margin-top:26px}
.check-list li{display:flex;gap:12px;padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:12px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.check-list li:hover{border-color:var(--brand-100);box-shadow:var(--shadow-1)}
.check-list strong{display:block;font-size:15.5px;color:var(--brand-900);font-weight:700}
.check-list span{display:block;margin-top:4px;font-size:14.5px;line-height:1.75;color:var(--ink-600)}
.check-list__dot{flex:0 0 auto;width:22px;height:22px;margin-top:3px;border-radius:50%;background:var(--brand-100);display:flex;align-items:center;justify-content:center;color:var(--brand-700);font-size:12px;font-weight:700}

/* 场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.scene-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);display:flex;flex-direction:column}
.scene-card:hover{transform:translateY(-2px);border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.scene-card__media{overflow:hidden}
.scene-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s var(--ease)}
.scene-card:hover .scene-card__media img{transform:scale(1.04)}
.scene-card__body{padding:20px;display:flex;flex-direction:column;flex:1}
.scene-card h3{font-size:16.5px;color:var(--brand-900);font-weight:700}
.scene-card p{margin-top:8px;font-size:14.5px;line-height:1.75;color:var(--ink-600);flex:1}
.scene-card__link{margin-top:14px;font-size:13.5px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px}
.scene-card__link:hover{color:var(--cta-600)}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:flow}
.flow__step{position:relative;padding:26px 22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease)}
.flow__step:hover{border-color:var(--brand-100);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.flow__step::after{content:"";position:absolute;top:46px;right:-14px;width:14px;height:1px;background:var(--line)}
.flow__step:last-child::after{display:none}
.flow__no{width:34px;height:34px;border-radius:50%;background:var(--brand-900);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;font-variant-numeric:tabular-nums}
.flow__step h3{margin-top:16px;font-size:17px;color:var(--brand-900)}
.flow__step p{margin-top:8px;font-size:14.5px;line-height:1.75;color:var(--ink-600)}

/* FAQ */
.faq{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;align-items:start}
.faq__item{background:var(--surface);border:1px solid var(--line);border-radius:12px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.faq__item[open]{border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.faq__q{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;font-size:16px;font-weight:600;color:var(--brand-900);cursor:pointer;list-style:none}
.faq__q::-webkit-details-marker{display:none}
.faq__item[open] .faq__q{color:var(--brand-700)}
.faq__arrow{flex:0 0 auto;width:18px;height:18px;position:relative;transition:transform .2s var(--ease)}
.faq__arrow::before,.faq__arrow::after{content:"";position:absolute;top:8px;width:10px;height:1.8px;background:var(--ink-400);border-radius:2px}
.faq__arrow::before{left:0;transform:rotate(40deg)}
.faq__arrow::after{right:0;transform:rotate(-40deg)}
.faq__item[open] .faq__arrow{transform:rotate(90deg)}
.faq__a{padding:0 22px 22px 42px;font-size:15px;line-height:1.85;color:var(--ink-600)}

/* 频道分页 */
.pager{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:stretch;margin-top:56px}
.pager__item{display:flex;flex-direction:column;justify-content:center;gap:4px;padding:18px 22px;border:1px solid var(--line);border-radius:12px;background:var(--surface);transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease)}
.pager__item:hover{border-color:var(--brand-100);box-shadow:var(--shadow-1);transform:translateY(-2px)}
.pager__item--next{text-align:right;align-items:flex-end}
.pager__item--home{align-items:center;background:var(--cta-600);border-color:var(--cta-600);color:#fff;font-weight:600;min-width:140px}
.pager__item--home:hover{background:var(--cta-700);border-color:var(--cta-700)}
.pager__label{font-size:12.5px;color:var(--ink-400)}
.pager__item--home .pager__label{color:rgba(255,255,255,.8)}
.pager__title{font-size:16px;font-weight:600;color:var(--brand-900)}
.pager__item--home .pager__title{color:#fff}

/* 咨询条 */
.cta-band{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:44px 0}
.cta-band h2{font-size:24px;color:var(--brand-900)}
.cta-band p{margin-top:10px;font-size:15px;color:var(--ink-600);max-width:600px}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0}

/* 页脚 */
.site-footer{background:var(--brand-900);color:#fff;padding:64px 0 0}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer__brand .logo__text{color:#fff}
.footer__brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:420px}
.footer__qr{display:flex;gap:14px;margin-top:22px}
.footer__qr img{width:88px;height:88px;object-fit:cover;border-radius:10px;border:1px solid rgba(255,255,255,.14)}
.footer__grid h3{font-size:15px;color:var(--accent-600);font-weight:600;margin-bottom:16px}
.footer__links{display:grid;gap:10px}
.footer__links a,.footer__links span{display:inline-block;font-size:14px;line-height:1.8;color:rgba(255,255,255,.82);transition:color .2s var(--ease),transform .2s var(--ease)}
.footer__links a:hover{color:#fff;transform:translateX(2px)}
.footer__bottom{margin-top:52px;padding:20px 0;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6)}

/* 返回顶部 */
.to-top{position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--brand-700);display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(8px);box-shadow:var(--shadow-2);transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease),background-color .2s var(--ease),color .2s var(--ease)}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand-900);color:#fff;border-color:var(--brand-900)}

@media (max-width:1180px){
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow__step::after{display:none}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .section--tight{padding:60px 0}
  .feature-grid{grid-template-columns:1fr}
  .lane-rail{grid-template-columns:1fr;gap:18px}
  .lane-card:nth-child(2),.lane-card:nth-child(3){margin-top:0}
  .split{grid-template-columns:1fr;gap:32px}
  .faq{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band__inner{flex-direction:column;align-items:flex-start}
  .topbar__claim{display:none}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .topbar__inner{height:64px;gap:12px}
  .logo__text{font-size:15px}
  .topbar__toggle{display:flex}
  .topbar__meta{position:absolute;left:0;right:0;top:64px;margin:0;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);flex-direction:column;align-items:stretch;gap:12px;padding:18px 16px 20px;display:none}
  .topbar__meta.is-open{display:flex}
  .topbar__meta .btn{width:100%}
  .page-hero{padding:44px 0 40px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .section-head{margin-bottom:30px}
  .section-head h2{font-size:23px}
  .scene-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr;gap:12px}
  .pager__item--next{text-align:left;align-items:flex-start}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer__bottom{flex-direction:column;gap:8px}
  .to-top{right:16px;bottom:16px;width:44px;height:44px}
  .feature-card{flex-direction:column;gap:14px;padding:22px}
}
@media (max-width:360px){
  body{font-size:15px}
  .logo__text{font-size:13.5px}
  .feature-card__no{width:38px;height:38px;font-size:17px}
  .lane-card__no{font-size:46px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B3B31;
  --brand-700:#0E4B3F;
  --brand-500:#1A6B58;
  --brand-100:#E4EFE9;
  --accent-600:#D9822B;
  --accent-100:#FBF0DF;
  --cta-600:#E2552B;
  --cta-700:#C4441F;
  --bg:#FAF7F1;
  --surface:#FFFFFF;
  --surface-2:#F2ECE2;
  --line:#E5DFD4;
  --ink-900:#16211E;
  --ink-600:#48584F;
  --ink-400:#8A9691;
  --success:#2F7D63;
  --info:#3E6E8C;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(11,59,49,.05);
  --shadow-2:0 14px 30px -14px rgba(11,59,49,.22);
  --shadow-3:0 24px 60px -20px rgba(11,59,49,.30);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC",serif;
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--cta-600)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--ink-900)}
h1{font-family:var(--font-display);font-size:clamp(28px,3vw,40px);line-height:1.25;letter-spacing:.3px}
h2{font-family:var(--font-display);font-size:28px;line-height:1.35;letter-spacing:.2px}
h3{font-size:20px;line-height:1.45}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(226,85,43,.35);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-900);color:#fff;padding:10px 18px;border-radius:0 0 8px 0;z-index:999}
.skip-link:focus{left:0;color:#fff}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;cursor:pointer;
  border:1.5px solid transparent;background:transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  text-align:center;white-space:nowrap;
}
.btn--primary{background:var(--cta-600);color:#fff;box-shadow:0 6px 16px -10px rgba(226,85,43,.7)}
.btn--primary:hover{background:var(--cta-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn--ghost{border-color:var(--brand-700);color:var(--brand-700)}
.btn--ghost:hover{background:var(--brand-100);color:var(--brand-700)}
.btn--onDark{border-color:rgba(255,255,255,.6);color:#fff}
.btn--onDark:hover{background:#fff;color:var(--brand-900);border-color:#fff}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;filter:saturate(.6);transform:none!important}

/* ============ 顶部品牌行 ============ */
.site-header{position:sticky;top:0;z-index:80;background:var(--surface)}
.site-header.is-stuck{box-shadow:0 10px 24px -18px rgba(11,59,49,.45)}
.topbar{border-bottom:1px solid var(--line);background:var(--surface)}
.topbar__inner{display:flex;align-items:center;gap:20px;height:72px;position:relative}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo__mark{display:inline-flex;align-items:center}
.logo__text{font-family:var(--font-display);font-size:19px;font-weight:600;color:var(--brand-900);letter-spacing:.4px}
.logo:hover .logo__text{color:var(--brand-700)}
.topbar__tagline{
  font-size:14px;color:var(--ink-600);padding-left:20px;border-left:1px solid var(--line);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:280px;
}
.topbar__meta{margin-left:auto;display:flex;align-items:center;gap:20px}
.topbar__item{font-size:14px;color:var(--ink-600);white-space:nowrap}
.hamburger{
  display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}

/* ============ 频道行 ============ */
.channelbar{background:var(--brand-900);border-bottom:1px solid rgba(255,255,255,.08)}
.channelbar__inner{display:flex;align-items:stretch;gap:30px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channelbar__inner::-webkit-scrollbar{display:none}
.channel{
  display:inline-flex;align-items:center;height:52px;font-size:15px;color:rgba(255,255,255,.82);
  border-bottom:3px solid transparent;white-space:nowrap;transition:color .2s var(--ease),border-color .2s var(--ease);
}
.channel:hover{color:#fff}
.channel.is-active{
  color:#fff;border-bottom-color:var(--cta-600);
  box-shadow:inset 8px 0 0 -6px var(--cta-600),inset -8px 0 0 -6px var(--cta-600);
}

/* ============ 页面 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#0E4B3F 0%,#123B33 60%,#0B322A 100%);
  padding:52px 0 46px;min-height:264px;display:flex;align-items:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;opacity:.16;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 1px,transparent 1px 12px);
}
.page-hero__inner{position:relative;z-index:1;max-width:820px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.7);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb__sep{color:rgba(255,255,255,.4)}
.page-hero__kicker{
  display:block;font-family:var(--font-sans);font-size:14px;font-weight:500;letter-spacing:1px;
  color:#E8B678;margin-bottom:10px;
}
.page-hero__title{color:#fff}
.page-hero__sub{margin:16px 0 0;font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);max-width:640px}
.anchor-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.anchor-tags a{
  display:inline-flex;align-items:center;height:34px;padding:0 15px;border-radius:999px;
  border:1px solid rgba(255,255,255,.28);color:rgba(255,255,255,.9);font-size:14px;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.anchor-tags a:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.6);color:#fff}

/* ============ 板块 ============ */
.section{padding:88px 0}
.section--tight{padding:56px 0}
.section--alt{background:var(--surface-2)}
.section__head{max-width:720px;margin-bottom:44px}
.section__eyebrow{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--accent-100);color:var(--accent-600);font-size:12px;font-weight:600;letter-spacing:.6px;
  margin-bottom:14px;line-height:1;
}
.section__head p{margin-top:14px;color:var(--ink-600);font-size:15.5px}

/* ============ 速览卡 ============ */
.overview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.overview-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.overview-card:hover{transform:translateY(-2px);border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.overview-card__num{
  font-family:var(--font-display);font-size:38px;line-height:1;color:var(--accent-600);
  font-variant-numeric:tabular-nums;display:block;margin-bottom:16px;
}
.overview-card h3{font-size:17px;margin-bottom:10px}
.overview-card p{font-size:14px;color:var(--ink-600);line-height:1.75}

/* ============ 问答折叠列表 ============ */
.faq-group{margin-bottom:44px}
.faq-group:last-child{margin-bottom:0}
.faq-group__title{
  display:flex;align-items:center;gap:12px;font-size:16px;font-weight:600;color:var(--brand-700);
  margin-bottom:18px;
}
.faq-group__title::before{content:"";width:4px;height:18px;background:var(--accent-600);border-radius:2px;display:block}
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  scroll-margin-top:140px;
}
.faq-item[open]{border-color:var(--brand-100);box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.55;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-700)}
.faq-item__idx{
  flex:none;width:26px;height:26px;border-radius:8px;background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;margin-top:2px;
}
.faq-item__arrow{
  flex:none;margin-left:auto;width:18px;height:18px;border-right:2px solid var(--ink-400);
  border-bottom:2px solid var(--ink-400);transform:rotate(45deg);transition:transform .2s var(--ease),border-color .2s var(--ease);
  margin-top:6px;
}
.faq-item[open] .faq-item__arrow{transform:rotate(225deg);border-color:var(--cta-600)}
.faq-item[open] summary{color:var(--brand-700)}
.faq-item__body{padding:0 24px 22px 64px;font-size:15.5px;color:var(--ink-600);line-height:1.85}
.faq-item__body p{margin:0 0 .8em}
.faq-item__body p:last-child{margin-bottom:0}

/* ============ 步骤路径 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;box-shadow:var(--shadow-1);position:relative;
}
.step::after{
  content:"";position:absolute;top:44px;right:-14px;width:28px;border-top:1px dashed var(--accent-600);opacity:.55;
}
.step:last-child::after{display:none}
.step__num{
  font-family:var(--font-display);font-size:30px;color:var(--accent-600);line-height:1;
  font-variant-numeric:tabular-nums;margin-bottom:14px;display:block;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-600);line-height:1.75}

/* ============ 相关频道卡 ============ */
.channel-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.channel-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.channel-card:hover{transform:translateY(-2px);border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.channel-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.channel-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.channel-card:hover .channel-card__media img{transform:scale(1.04)}
.channel-card__badge{
  position:absolute;left:14px;bottom:14px;height:24px;padding:0 11px;border-radius:999px;
  background:rgba(11,59,49,.86);color:#fff;font-size:12px;line-height:24px;
}
.channel-card__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.channel-card__body h3{font-size:18px}
.channel-card__body p{font-size:14px;color:var(--ink-600);line-height:1.75}
.channel-card__link{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-700)}
.channel-card:hover .channel-card__link{color:var(--cta-600)}

/* ============ 咨询条 ============ */
.consult{
  background:var(--accent-100);border:1px solid #F0DFC4;border-radius:18px;
  padding:44px 48px;display:flex;align-items:center;gap:32px;flex-wrap:wrap;
}
.consult__text{flex:1 1 380px;min-width:260px}
.consult__text h2{font-size:24px;margin-bottom:12px}
.consult__text p{color:var(--ink-600);font-size:15px;margin:0}
.consult__actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 分页 ============ */
.pagination{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:56px;flex-wrap:wrap}
.pagination a,.pagination span{
  min-width:44px;height:44px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--surface);
  font-size:14px;color:var(--ink-600);font-variant-numeric:tabular-nums;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.pagination a:hover{border-color:var(--brand-500);color:var(--brand-700)}
.pagination .is-current{background:var(--cta-600);border-color:var(--cta-600);color:#fff;font-weight:600}
.pagination .is-disabled{color:var(--ink-400);opacity:.6;cursor:not-allowed}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-900);color:rgba(255,255,255,.82);margin-top:0;
  padding:72px 0 0;position:relative;
}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.03) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.footer__grid{position:relative;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer__brand .logo__text{color:#fff}
.footer__brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);margin:18px 0 22px;max-width:340px}
.footer .logo{margin-bottom:0}
.footer h3{font-size:15px;color:var(--accent-600);margin-bottom:16px;font-weight:600;letter-spacing:.4px}
.footer__links{display:grid;gap:9px}
.footer__links a,.footer__links span{font-size:14px;line-height:1.8;color:rgba(255,255,255,.82);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
.footer__links a:hover{color:#fff;transform:translateX(2px)}
.footer__qr{display:flex;gap:12px}
.footer__qr img{width:72px;height:72px;object-fit:cover;border-radius:10px;background:#fff;border:1px solid rgba(255,255,255,.16)}
.footer__bottom{
  position:relative;margin-top:56px;padding:22px 0 26px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:var(--brand-900);color:#fff;border:none;font-size:18px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),background-color .2s var(--ease),visibility .24s;
  z-index:90;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--cta-600)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:1080px}
}
@media (max-width:1023px){
  .topbar__inner{height:64px}
  .topbar__tagline{max-width:200px}
  .overview-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:nth-child(2)::after{display:none}
  .channel-cards{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:repeat(2,1fr);gap:36px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .topbar__inner{gap:12px}
  .topbar__tagline{display:none}
  .hamburger{display:flex}
  .topbar__meta{
    position:absolute;top:100%;left:16px;right:16px;margin:0;
    background:var(--surface);border:1px solid var(--line);border-radius:12px;
    box-shadow:var(--shadow-2);padding:16px;flex-direction:column;align-items:stretch;gap:12px;
    display:none;
  }
  .topbar__meta.is-open{display:flex}
  .topbar__meta .btn{width:100%}
  .channelbar__inner{gap:22px}
  .channel{font-size:14px;height:48px}
  .page-hero{padding:40px 0 38px;min-height:0}
  .page-hero__sub{font-size:15px}
  .section{padding:52px 0}
  .section__head{margin-bottom:30px}
  h2{font-size:23px}
  .overview-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step::after{display:none}
  .channel-cards{grid-template-columns:1fr}
  .faq-item summary{padding:18px 18px;font-size:16px}
  .faq-item__body{padding:0 18px 20px 18px}
  .consult{padding:32px 22px;border-radius:14px}
  .consult__actions{width:100%}
  .consult__actions .btn{flex:1 1 100%;width:100%}
  .btn{height:44px;padding:0 22px}
  .btn--sm{height:40px}
  .footer__grid{grid-template-columns:1fr;gap:32px}
  .footer__brand p{max-width:none}
  .footer__bottom{flex-direction:column;gap:8px}
  .to-top{right:16px;bottom:16px;width:44px;height:44px}
}
@media (max-width:359px){
  body{font-size:15px}
  .container{padding:0 14px}
  h2{font-size:21px}
  .btn{padding:0 18px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --brand-900:#0B3B31;
  --brand-700:#0E4B3F;
  --brand-500:#1A6B58;
  --brand-100:#E4EFE9;
  --accent-600:#D9822B;
  --accent-100:#FBF0DF;
  --cta-600:#E2552B;
  --cta-700:#C4441F;
  --bg:#FAF7F1;
  --surface:#FFFFFF;
  --surface-2:#F2ECE2;
  --line:#E5DFD4;
  --ink-900:#16211E;
  --ink-600:#48584F;
  --ink-400:#8A9691;
  --success:#2F7D63;
  --warn:#C98A0E;
  --error:#C0392B;
  --info:#3E6E8C;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC",serif;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(11,59,49,.05);
  --shadow-2:0 14px 30px -14px rgba(11,59,49,.22);
  --shadow-3:0 24px 60px -20px rgba(11,59,49,.30);
  --ease:cubic-bezier(.2,.7,.3,1);
  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:32px;
  --space-5:48px;
  --space-6:72px;
  --space-7:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--cta-600)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(226,85,43,.35);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  border:1.5px solid transparent;cursor:pointer;text-decoration:none;
  transition:all .2s var(--ease);white-space:nowrap;
}
.btn--cta{background:var(--cta-600);color:#fff;border-color:var(--cta-600)}
.btn--cta:hover{background:var(--cta-700);border-color:var(--cta-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--cta:active{transform:none;box-shadow:none}
.btn--ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
.btn--ghost:hover{background:var(--brand-100);color:var(--brand-700)}
.btn--sm{height:40px;padding:0 20px;font-size:14px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;background:var(--accent-100);color:var(--accent-600);
  font-size:12px;line-height:1;font-weight:600;letter-spacing:.4px;
}
.badge--brand{background:var(--brand-100);color:var(--brand-700)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease)}
.site-header.is-scrolled{box-shadow:var(--shadow-2)}
.header__inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{display:inline-flex;width:34px;height:34px}
.logo__text{font-family:var(--font-display);font-size:19px;font-weight:600;color:var(--brand-900);letter-spacing:.4px;line-height:1.2}
.header__claim{font-size:13px;color:var(--ink-400);letter-spacing:.3px;padding-left:16px;border-left:1px solid var(--line)}
.header__side{margin-left:auto;display:flex;align-items:center;gap:16px;font-size:13px;color:var(--ink-600)}
.header__side .divider{width:1px;height:16px;background:var(--line)}
.menu-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--surface);cursor:pointer}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900)}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.header__mobile{display:none;border-top:1px solid var(--line);background:var(--surface-2)}
.header__mobile.is-open{display:block}
.header__mobile ul{padding:8px 24px 16px}
.header__mobile a{display:block;padding:12px 0;font-size:15px;color:var(--ink-900);border-bottom:1px solid var(--line)}
.header__mobile a:last-child{border-bottom:0}

/* ---------- channel nav ---------- */
.channelbar{background:var(--brand-900)}
.channelbar__inner{display:flex;align-items:stretch;gap:4px;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channelbar__inner::-webkit-scrollbar{display:none}
.channel{
  display:inline-flex;align-items:center;padding:0 18px;white-space:nowrap;
  color:rgba(255,255,255,.78);font-size:15px;font-weight:500;
  border-bottom:3px solid transparent;transition:all .18s var(--ease);
}
.channel:hover{color:#fff;background:rgba(255,255,255,.07)}
.channel.is-active{
  color:#fff;border-bottom-color:var(--cta-600);
  box-shadow:inset 8px 0 12px -12px rgba(226,85,43,.9),inset -8px 0 12px -12px rgba(226,85,43,.9);
}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:24px 0 0;font-size:14px;color:var(--ink-400)}
.breadcrumb a{color:var(--ink-600)}
.breadcrumb a:hover{color:var(--cta-600)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li:not(:last-child)::after{content:"/";color:var(--line);font-size:13px}

/* ---------- article head ---------- */
.article-head{padding:20px 0 32px}
.article-head__meta-top{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px}
.article-head h1{
  font-family:var(--font-display);
  font-size:clamp(26px,3vw,40px);
  line-height:1.3;
  color:var(--brand-900);
  max-width:22em;
}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:20px;font-size:14px;color:var(--ink-400);line-height:1.9}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta b{font-weight:500;color:var(--ink-600)}

/* ---------- layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:56px;align-items:start;padding:0 0 88px}
.article-main{max-width:820px}
.article-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  padding:40px 40px 36px;
}
.article-cover{margin:0 0 28px;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line)}
.article-cover img{width:100%;height:auto;aspect-ratio:16/7;object-fit:cover}
.article-cover figcaption{font-size:13px;color:var(--ink-400);padding:10px 14px;background:var(--surface-2);border-top:1px solid var(--line)}

/* ---------- article content ---------- */
.article-content{font-size:16px;line-height:1.85;color:var(--ink-900)}
.article-content > * + *{margin-top:1.2em}
.article-content p{margin:0}
.article-content h2{
  font-family:var(--font-display);font-size:24px;line-height:1.45;
  color:var(--brand-900);padding-left:14px;border-left:4px solid var(--accent-600);
  margin-top:2em;
}
.article-content h3{font-size:19px;line-height:1.5;color:var(--brand-700);margin-top:1.6em;font-weight:600}
.article-content h4{font-size:16px;color:var(--ink-900);margin-top:1.4em}
.article-content ul,.article-content ol{padding-left:1.3em}
.article-content li{line-height:1.9;margin:.4em 0}
.article-content ul li{list-style:disc}
.article-content ol li{list-style:decimal}
.article-content strong{color:var(--brand-700);font-weight:600}
.article-content blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--accent-100);
  border-left:4px solid var(--accent-600);border-radius:0 var(--radius-card) var(--radius-card) 0;
  color:var(--ink-600);font-size:15px;line-height:1.85;
}
.article-content blockquote p{margin:0}
.article-content img{border-radius:var(--radius-img);margin:1.4em auto}
.article-content figure{margin:1.6em 0}
.article-content figcaption{font-size:13px;color:var(--ink-400);text-align:center;margin-top:10px}
.article-content table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;display:block;overflow-x:auto}
.article-content th,.article-content td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-content th{background:var(--brand-100);color:var(--brand-900);font-weight:600;white-space:nowrap}
.article-content tr:nth-child(even) td{background:rgba(242,236,226,.4)}
.article-content code{background:var(--surface-2);border-radius:4px;padding:2px 6px;font-size:14px}
.article-content a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-content a:hover{color:var(--cta-600)}
.article-content hr{border:0;border-top:1px dashed var(--line);margin:2em 0}

/* ---------- toc ---------- */
.toc{
  position:sticky;top:96px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-1);
}
.toc__summary{display:none;list-style:none;cursor:pointer}
.toc__summary::-webkit-details-marker{display:none}
.toc__title{font-size:15px;font-weight:600;color:var(--brand-900);margin:0 0 12px}
.toc__nav a{
  display:block;padding:7px 0 7px 12px;font-size:14px;line-height:1.6;
  color:var(--ink-600);border-left:2px solid transparent;
  transition:all .18s var(--ease);
}
.toc__nav a:hover{color:var(--cta-600);border-left-color:var(--cta-600);background:rgba(251,240,223,.5)}

/* ---------- article foot ---------- */
.article-foot{padding:32px 0 0;margin-top:36px;border-top:1px dashed var(--line)}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:22px}
.tag-row__label{font-size:14px;color:var(--ink-400)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;background:var(--surface-2);
  font-size:13px;color:var(--ink-600);transition:all .2s var(--ease);
}
.tag:hover{border-color:var(--brand-100);background:var(--brand-100);color:var(--brand-700)}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--ink-400)}
.share-row button{
  height:34px;padding:0 14px;border:1px solid var(--line);border-radius:999px;
  background:var(--surface);font-size:13px;color:var(--ink-600);cursor:pointer;
  transition:all .2s var(--ease);
}
.share-row button:hover{border-color:var(--brand-100);color:var(--brand-700);background:var(--brand-100)}

/* ---------- prev next ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:28px}
.pager__card{
  display:block;padding:20px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--surface);box-shadow:var(--shadow-1);transition:all .2s var(--ease);
}
.pager__card:hover{transform:translateY(-2px);border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.pager__card span{display:block;font-size:12px;color:var(--ink-400);margin-bottom:6px;letter-spacing:.4px}
.pager__card strong{font-size:15px;color:var(--brand-900);font-weight:600}
.pager__card:hover strong{color:var(--brand-700)}
.pager__card--right{text-align:right}

/* ---------- empty state ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;background:var(--surface);
}
.empty-state__icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  background:var(--brand-100);display:flex;align-items:center;justify-content:center;
  color:var(--brand-700);font-size:24px;font-weight:600;
}
.empty-state__title{font-size:19px;font-weight:600;color:var(--brand-900);margin-bottom:10px}
.empty-state p{color:var(--ink-600);font-size:15px;margin-bottom:22px}

/* ---------- related / sections ---------- */
.section{padding:0 0 88px}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section__head h2{font-family:var(--font-display);font-size:28px;color:var(--brand-900)}
.section__head p{font-size:14px;color:var(--ink-400);margin-top:8px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);transition:all .2s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.card__media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--surface-2)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .25s var(--ease)}
.card:hover .card__media img{transform:scale(1.04)}
.card__badge{position:absolute;left:12px;bottom:12px}
.card__body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__body h3{font-size:17px;line-height:1.5;color:var(--brand-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover .card__body h3{color:var(--brand-700)}
.card__body p{font-size:14px;line-height:1.75;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-400)}
.card__foot .arrow{color:var(--cta-600);font-weight:600}

/* ---------- cta strip ---------- */
.cta-strip{
  background:linear-gradient(135deg,#0E4B3F 0%,#123B33 60%,#0B322A 100%);
  border-radius:var(--radius-card);padding:44px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  color:#fff;margin-bottom:88px;
}
.cta-strip h2{font-family:var(--font-display);font-size:26px;color:#fff;margin-bottom:10px}
.cta-strip p{font-size:14px;color:rgba(255,255,255,.78);max-width:46em}
.cta-strip .btn--ghost{border-color:rgba(255,255,255,.65);color:#fff}
.cta-strip .btn--ghost:hover{background:#fff;color:var(--brand-900)}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.82);padding:72px 0 0;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer__brand .logo__text{color:#fff}
.footer__brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.68);margin:18px 0 22px;max-width:34em}
.footer__qr{display:flex;gap:12px}
.footer__qr img{width:88px;height:88px;border-radius:10px;object-fit:cover;border:1px solid rgba(255,255,255,.14)}
.footer__grid .footer h3{font-size:15px;color:var(--accent-600);margin-bottom:16px;font-weight:600}
.footer__links li{margin-bottom:4px}
.footer__links a,.footer__links span{
  display:inline-block;font-size:14px;line-height:2;color:rgba(255,255,255,.82);
  transition:all .2s var(--ease);
}
.footer__links a:hover{color:#fff;transform:translateX(2px)}
.footer__bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;
  border-radius:50%;border:1px solid var(--line);background:var(--surface);
  color:var(--brand-900);font-size:18px;cursor:pointer;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:all .24s var(--ease);z-index:70;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--brand-100);color:var(--brand-700)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-layout{gap:40px}
}
@media (max-width:1023px){
  .header__claim{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .toc{position:static;order:-1;margin-bottom:24px;padding:0}
  .toc__summary{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;font-size:15px;font-weight:600;color:var(--brand-900)}
  .toc__summary::after{content:"+";color:var(--accent-600);font-size:18px}
  .toc[open] .toc__summary::after{content:"−"}
  .toc__body{padding:0 20px 18px}
  .toc__title{display:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-strip{padding:36px 32px}
  .section{padding-bottom:64px}
  .article-layout{padding-bottom:64px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .header__inner{height:64px;gap:12px}
  .header__side .divider,.header__side .header__lang{display:none}
  .menu-toggle{display:inline-flex}
  .channelbar__inner{height:48px}
  .channel{padding:0 14px;font-size:14px}
  .article-card{padding:24px 20px}
  .article-head h1{font-size:24px}
  .article-content h2{font-size:20px}
  .article-content h3{font-size:17px}
  .pager{grid-template-columns:1fr}
  .pager__card--right{text-align:left}
  .card-grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .cta-strip{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-strip .btn{width:100%}
  .section{padding-bottom:48px}
  .article-layout{padding-bottom:48px}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  .header__side .btn{display:none}
  .article-meta{gap:6px 14px;font-size:13px}
  .breadcrumb{font-size:13px}
  .section__head h2{font-size:22px}
  .cta-strip h2{font-size:21px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --brand-900:#0B3B31;
  --brand-700:#0E4B3F;
  --brand-500:#1A6B58;
  --brand-100:#E4EFE9;
  --accent-600:#D9822B;
  --accent-100:#FBF0DF;
  --cta-600:#E2552B;
  --cta-700:#C4441F;
  --bg:#FAF7F1;
  --surface:#FFFFFF;
  --surface-2:#F2ECE2;
  --line:#E5DFD4;
  --ink-900:#16211E;
  --ink-600:#48584F;
  --ink-400:#8A9691;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(11,59,49,.05);
  --shadow-2:0 14px 30px -14px rgba(11,59,49,.22);
  --shadow-3:0 24px 60px -20px rgba(11,59,49,.30);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC",serif;
  --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:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:600}
:focus-visible{outline:3px solid rgba(226,85,43,.35);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 12px 32px -20px rgba(11,59,49,.45)}
.header__inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:24px;
  position:relative;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo__mark{display:inline-flex;width:34px;height:34px}
.logo__text{
  font-family:var(--font-display);
  font-size:19px;
  font-weight:600;
  color:var(--brand-900);
  white-space:nowrap;
  letter-spacing:.01em;
}
.header__meta{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:18px;
}
.header__slogan{font-size:14px;color:var(--ink-600)}
.header__note{
  font-size:14px;
  color:var(--ink-600);
  padding-left:18px;
  border-left:1px solid var(--line);
}
.nav-toggle{display:none}

/* ============ channel bar ============ */
.channelbar{background:var(--brand-700)}
.channelbar__inner{
  height:52px;
  display:flex;
  align-items:center;
  gap:4px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channelbar__inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;
  display:flex;
  align-items:center;
  height:52px;
  padding:0 14px;
  font-size:15px;
  color:rgba(255,255,255,.78);
  white-space:nowrap;
  transition:color .18s var(--ease);
}
.channel:hover{color:#fff}
.channel.is-active{color:#fff;font-weight:600}
.channel.is-active::after{
  content:"";
  position:absolute;
  left:8px;
  right:8px;
  bottom:0;
  height:3px;
  background:var(--cta-600);
  box-shadow:0 0 12px rgba(226,85,43,.55);
}

/* ============ buttons ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--radius-btn);
  border:1.5px solid transparent;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn--primary{background:var(--cta-600);color:#fff}
.btn--primary:hover{background:var(--cta-700);transform:translateY(-1px);box-shadow:0 14px 30px -14px rgba(226,85,43,.6)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn--ghost:hover{background:var(--brand-100)}
.btn--ghost-light{border-color:rgba(255,255,255,.65);color:#fff;background:transparent}
.btn--ghost-light:hover{background:#fff;color:var(--brand-900)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed}

/* ============ badge & eyebrow ============ */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  line-height:1;
  font-weight:600;
  background:var(--brand-100);
  color:var(--brand-700);
}
.badge--cta{background:var(--cta-600);color:#fff}
.badge--accent{background:var(--accent-100);color:#9A5A16}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--accent-600);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent-600)}

/* ============ page hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:linear-gradient(135deg,#0E4B3F 0%,#123B33 60%,#0B322A 100%);
  color:#fff;
}
.page-hero__bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.16;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.035) 0 2px,transparent 2px 8px);
  pointer-events:none;
}
.page-hero__inner{position:relative;z-index:2;padding:48px 0 52px;max-width:860px}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.7);
  margin-bottom:22px;
}
.breadcrumb a{transition:color .18s var(--ease)}
.breadcrumb a:hover{color:#fff}
.breadcrumb__sep{opacity:.55}
.page-hero h1{
  font-family:var(--font-display);
  font-size:clamp(30px,3.2vw,44px);
  line-height:1.25;
  margin-bottom:16px;
}
.page-hero__sub{
  font-size:16px;
  color:rgba(255,255,255,.82);
  max-width:620px;
  line-height:1.8;
}
.anchor-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.anchor-tabs a{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.28);
  color:rgba(255,255,255,.86);
  font-size:14px;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.anchor-tabs a:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.55);color:#fff}

/* ============ sections ============ */
.section{padding:96px 0}
.section--surface{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--tight{padding:64px 0}
.section__head{max-width:720px;margin-bottom:44px}
.section__head h2{
  font-family:var(--font-display);
  font-size:clamp(24px,2.4vw,30px);
  line-height:1.35;
  margin-bottom:14px;
}
.section__desc{color:var(--ink-600);font-size:15px;line-height:1.85}

/* ============ plan cards ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:30px 26px 28px;
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.plan-card--featured{background:linear-gradient(180deg,#FFFDF8 0%,#FFFFFF 60%);border-color:#E9D8BC;box-shadow:var(--shadow-2)}
.plan-card--featured::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:var(--cta-600);
}
.plan-card__badge{position:absolute;top:16px;right:16px}
.plan-card h3{font-size:20px;line-height:1.5;margin-bottom:8px}
.plan-card__lead{font-size:14px;color:var(--ink-600);line-height:1.75;min-height:48px}
.plan-spec{display:grid;gap:0;margin:22px 0 26px}
.plan-spec li{
  display:grid;
  grid-template-columns:76px 1fr;
  gap:12px;
  padding:12px 0;
  border-top:1px dashed var(--line);
  font-size:14px;
  line-height:1.75;
}
.plan-spec li:first-child{border-top:0;padding-top:0}
.plan-spec__k{color:var(--ink-400)}
.plan-spec__v{color:var(--ink-900)}
.plan-card__foot{margin-top:auto}

/* ============ ladder ============ */
.ladder{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.ladder::before{
  content:"";
  position:absolute;
  top:38px;
  left:8%;
  right:8%;
  border-top:1px dashed var(--line);
}
.step-card{
  position:relative;
  z-index:2;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.step-card:nth-child(2){margin-top:20px}
.step-card:nth-child(3){margin-top:8px}
.step-card__num{
  display:block;
  font-family:var(--font-display);
  font-size:56px;
  line-height:1;
  color:var(--accent-600);
  margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.step-card h3{font-size:18px;margin-bottom:10px}
.step-card p{font-size:14px;color:var(--ink-600);line-height:1.85}
.step-card__link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:18px;
  font-size:14px;
  color:var(--brand-700);
  border-bottom:1px solid currentColor;
  padding-bottom:3px;
  transition:color .2s var(--ease);
}
.step-card__link:hover{color:var(--cta-600)}

/* ============ scene cards ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  display:flex;
  flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.scene-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.scene-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.scene-card:hover .scene-card__media img{transform:scale(1.04)}
.scene-card__tag{
  position:absolute;
  left:14px;
  bottom:14px;
  background:rgba(11,59,49,.86);
  color:#fff;
  font-size:12px;
  line-height:1;
  padding:7px 12px;
  border-radius:999px;
}
.scene-card__body{padding:22px 22px 26px;display:flex;flex-direction:column;flex:1}
.scene-card h3{font-size:18px;line-height:1.5;margin-bottom:10px;transition:color .2s var(--ease)}
.scene-card:hover h3{color:var(--brand-700)}
.scene-card p{font-size:14px;color:var(--ink-600);line-height:1.85}

/* ============ flow ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.flow-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 22px;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.flow-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.flow-item__num{
  width:36px;
  height:36px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  background:var(--brand-100);
  color:var(--brand-700);
  font-weight:600;
  font-size:15px;
  margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.flow-item h3{font-size:17px;margin-bottom:8px}
.flow-item p{font-size:14px;color:var(--ink-600);line-height:1.8}

/* ============ notes ============ */
.notes{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 24px}
.note-item{
  display:flex;
  gap:12px;
  align-items:flex-start;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-img);
  padding:18px 20px;
  font-size:14px;
  line-height:1.8;
  color:var(--ink-600);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.note-item:hover{border-color:var(--brand-100);box-shadow:var(--shadow-1)}
.note-item__dot{
  flex:0 0 auto;
  width:8px;
  height:8px;
  margin-top:9px;
  border-radius:50%;
  background:var(--accent-600);
}

/* ============ faq ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.faq{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-img);
  overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq:hover{border-color:#DCD3C4}
.faq[open]{border-color:var(--brand-100);box-shadow:var(--shadow-1)}
.faq summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink-900);
  transition:color .2s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq[open] summary{color:var(--brand-700)}
.faq__icon{flex:0 0 auto;transition:transform .2s var(--ease);color:var(--cta-600)}
.faq[open] .faq__icon{transform:rotate(90deg)}
.faq__body{
  padding:0 20px 20px 40px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-600);
}

/* ============ channel switch ============ */
.channel-switch{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.channel-switch__item{
  display:flex;
  flex-direction:column;
  gap:6px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px 24px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.channel-switch__item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.channel-switch__label{font-size:13px;color:var(--ink-400)}
.channel-switch__item strong{font-size:18px;color:var(--brand-900)}

/* ============ cta band ============ */
.cta-band{
  background:var(--brand-100);
  border:1px solid #CFE2DA;
  border-radius:18px;
  padding:40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-band h2{
  font-family:var(--font-display);
  font-size:clamp(22px,2.2vw,28px);
  line-height:1.4;
  margin-bottom:10px;
}
.cta-band p{color:var(--ink-600);font-size:15px;max-width:560px}
.cta-band__actions{display:flex;gap:12px;flex-shrink:0;flex-wrap:wrap}

/* ============ footer ============ */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.82);
  padding:72px 0 0;
  margin-top:96px;
}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer__brand .logo__text{color:#fff}
.footer__brand p{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.72);
  margin:18px 0 22px;
  max-width:420px;
}
.footer__qr{display:flex;gap:14px}
.footer__qr img{
  width:96px;
  height:96px;
  object-fit:cover;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
}
.site-footer h3{
  font-size:15px;
  color:var(--accent-600);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer__links{display:grid;gap:8px}
.footer__links li{font-size:14px;line-height:2;color:rgba(255,255,255,.82)}
.footer__links a{
  display:inline-block;
  color:rgba(255,255,255,.82);
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer__links a:hover{color:#fff;transform:translateX(2px)}
.footer__bottom{
  margin-top:56px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ============ to top ============ */
.to-top{
  position:fixed;
  right:24px;
  bottom:24px;
  width:46px;
  height:46px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand-700);
  box-shadow:var(--shadow-2);
  cursor:pointer;
  opacity:0;
  pointer-events:none;
  transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),background-color .2s var(--ease),color .2s var(--ease);
  z-index:70;
}
.to-top.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{background:var(--brand-700);color:#fff;border-color:var(--brand-700)}

/* ============ responsive ============ */
@media (max-width:1279px){
  .container{padding:0 24px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .plan-grid{grid-template-columns:1fr}
  .ladder{grid-template-columns:1fr}
  .ladder::before{display:none}
  .step-card:nth-child(2),
  .step-card:nth-child(3){margin-top:0}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .notes{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:repeat(2,1fr);gap:36px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section--tight{padding:44px 0}
  .header__inner{height:64px;gap:12px}
  .logo__text{font-size:16px;max-width:190px;overflow:hidden;text-overflow:ellipsis}
  .nav-toggle{
    display:inline-flex;
    align-items:center;
    gap:8px;
    margin-left:auto;
    height:40px;
    padding:0 14px;
    border-radius:var(--radius-btn);
    border:1px solid var(--line);
    background:#fff;
    color:var(--brand-900);
    font-size:14px;
    cursor:pointer;
    transition:background-color .2s var(--ease),border-color .2s var(--ease);
  }
  .nav-toggle:hover{background:var(--brand-100);border-color:var(--brand-100)}
  .nav-toggle__bars{position:relative;display:block;width:16px;height:2px;background:currentColor;border-radius:2px}
  .nav-toggle__bars::before,
  .nav-toggle__bars::after{
    content:"";
    position:absolute;
    left:0;
    width:16px;
    height:2px;
    background:currentColor;
    border-radius:2px;
  }
  .nav-toggle__bars::before{top:-5px}
  .nav-toggle__bars::after{top:5px}
  .header__meta{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    margin-left:0;
    flex-direction:column;
    align-items:stretch;
    gap:14px;
    padding:18px 16px 20px;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-2);
  }
  .header__meta.is-open{display:flex}
  .header__note{padding-left:0;border-left:0}
  .header__meta .btn{width:100%}
  .page-hero__inner{padding:36px 0 40px}
  .breadcrumb{margin-bottom:16px}
  .anchor-tabs{gap:8px}
  .anchor-tabs a{height:36px;padding:0 14px;font-size:13px}
  .scene-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .channel-switch{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr;gap:32px}
  .footer__bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:28px 20px;border-radius:14px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
  .btn{height:44px;padding:0 22px}
  .to-top{right:16px;bottom:16px;width:44px;height:44px}
}
@media (max-width:360px){
  body{font-size:15px}
  .logo__text{font-size:15px;max-width:150px}
  .step-card__num{font-size:46px}
  .plan-card{padding:24px 18px 22px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}