/* roulang page: index */
:root{
  --brand:#0F5A4E;
  --brand-deep:#093B33;
  --brand-soft:#E6F0ED;
  --accent:#FF7A45;
  --accent-soft:#FFEDE4;
  --gold:#E8B33D;
  --ink:#16201E;
  --ink-2:#43524F;
  --ink-3:#7C8A87;
  --bg:#FBFAF6;
  --bg-alt:#F3F0E8;
  --dark:#0B1412;
  --line:#E3E1DA;
  --line-dark:rgba(255,255,255,.12);
  --r-btn:10px;
  --r-card:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(11,20,18,.05);
  --sh2:0 8px 24px rgba(11,20,18,.08);
  --sh3:0 16px 40px rgba(11,20,18,.12);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --sec-y:108px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;font-family:var(--font);font-size:17px;line-height:1.85;
  color:var(--ink);background:var(--bg);padding-bottom:96px;
  -webkit-font-smoothing:antialiased;
}
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,h3{line-height:1.35;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(30px,3.5vw,46px)}
h2{font-size:clamp(24px,2.6vw,32px)}
h3{font-size:22px;font-weight:600}
p{color:var(--ink-2)}
::selection{background:var(--brand);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.site-header.is-scrolled{
  background:rgba(251,250,246,.93);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom-color:var(--line);
  box-shadow:var(--sh1);
}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:20px;height:20px;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:2px}
.logo-mark i{display:block;background:var(--brand);border-radius:1px;opacity:.9}
.logo-mark i:nth-child(2),
.logo-mark i:nth-child(4),
.logo-mark i:nth-child(9){opacity:.45}
.logo-mark i:nth-child(5){background:var(--accent);opacity:1}
.logo-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-.02em}
.nav-chips{
  display:flex;align-items:center;gap:8px;flex:1 1 auto;justify-content:center;
  overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--ink-2);font-size:14px;font-weight:500;
  background:transparent;white-space:nowrap;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:16px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh1)}
.btn-primary:hover{background:#0c4a40;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh1)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink-2)}
.btn-ghost:hover{color:var(--brand);background:var(--brand-soft)}
.btn-light{background:var(--bg);color:var(--dark)}
.btn-light:hover{background:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-sm{height:40px;padding:0 18px;font-size:15px}
.btn:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:500;background:var(--brand-soft);color:var(--brand);line-height:1;
}
.badge-neutral{background:var(--bg-alt);color:var(--ink-2)}
.badge-accent{background:var(--accent-soft);color:#B4471B}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--bg);font-size:13px;color:var(--ink-2);
  transition:border-color .2s ease,color .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:76px 0 88px;
  background:
    radial-gradient(900px 420px at 10% -12%,rgba(15,90,78,.12),transparent 70%),
    linear-gradient(180deg,#FBFAF6 0%,#F3F0E8 100%);
  border-bottom:1px solid var(--line);
}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;margin-bottom:22px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero h1{margin-bottom:18px;max-width:15em}
.hero-sub{font-size:17px;color:var(--ink-2);margin-bottom:32px;max-width:30em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.trust-bar{display:flex;flex-wrap:wrap;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.trust-bar li{padding:0 24px;border-left:1px solid var(--line)}
.trust-bar li:first-child{padding-left:0;border-left:0}
.trust-bar strong{display:block;font-size:22px;font-weight:700;color:var(--brand);line-height:1.25}
.trust-bar span{font-size:13px;color:var(--ink-3)}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh2);background:var(--bg-alt);
  aspect-ratio:16/11;
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(15,90,78,.42),rgba(9,59,51,.74));
}
.hero-grid-deco{
  position:absolute;right:20px;bottom:20px;width:132px;height:132px;z-index:2;opacity:.6;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:44px 44px;
  border-top:1px solid rgba(255,255,255,.5);border-left:1px solid rgba(255,255,255,.5);
}

/* ---------- section base ---------- */
.section{padding:var(--sec-y) 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{margin-bottom:14px}
.section-head p{font-size:16px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap}
.section-head-row .section-head{margin-bottom:0}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;border-bottom:1px solid transparent;transition:border-color .2s ease,gap .2s ease}
.text-link:hover{border-bottom-color:var(--brand);gap:10px}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.bento-main{
  grid-column:span 2;grid-row:span 3;position:relative;overflow:hidden;
  border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh2);
  background:var(--dark);min-height:420px;display:flex;align-items:flex-end;
}
.bento-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.bento-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,20,18,.15),rgba(9,59,51,.88))}
.bento-main:hover img{transform:scale(1.03)}
.bento-main-body{position:relative;z-index:2;padding:32px;color:#fff}
.bento-main-body h3{color:#fff;margin:14px 0 10px;font-size:24px}
.bento-main-body p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.8}
.mini-card{
  grid-column:span 2;display:flex;gap:18px;padding:24px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:#D6D3C8}
.mini-icon{
  flex:0 0 46px;width:46px;height:46px;border-radius:12px;background:var(--brand-soft);
  display:grid;place-items:center;color:var(--brand);font-weight:700;font-size:16px;
}
.mini-card h3{font-size:18px;margin-bottom:8px}
.mini-card p{font-size:15px;line-height:1.78}

/* ---------- demo ---------- */
.demo-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.demo-steps{display:flex;flex-direction:column;gap:12px}
.step-chip{
  display:block;width:100%;text-align:left;padding:18px 22px;border-radius:var(--r-card);
  border:1px solid var(--line);background:#fff;cursor:pointer;font-size:16px;font-weight:600;
  color:var(--ink);transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.step-chip small{display:block;font-weight:400;font-size:14px;color:var(--ink-3);margin-top:6px;line-height:1.7}
.step-chip:hover{border-color:var(--brand);transform:translateY(-2px)}
.step-chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:var(--sh2)}
.step-chip.is-active small{color:rgba(255,255,255,.78)}
.demo-stage{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh2);background:var(--bg-alt)}
.demo-pane{position:absolute;inset:0;opacity:0;transition:opacity .2s ease;pointer-events:none}
.demo-pane.is-active{position:relative;opacity:1;pointer-events:auto}
.demo-pane img{width:100%;aspect-ratio:16/10;object-fit:cover}
.demo-pane figcaption{padding:18px 24px;font-size:15px;color:var(--ink-2);background:#fff;border-top:1px solid var(--line)}

/* ---------- evidence ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--r-card);background:#fff;box-shadow:var(--sh1);overflow:hidden;margin-bottom:48px}
.stats li{padding:26px 24px;border-left:1px solid var(--line)}
.stats li:first-child{border-left:0}
.stats .num{font-size:34px;font-weight:700;color:var(--brand);line-height:1.1}
.stats .num small{font-size:15px;font-weight:500;color:var(--ink-3);margin-left:4px}
.stats .lbl{font-size:14px;color:var(--ink-3);margin-top:8px}
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:44px}
.quote-card{position:relative;padding:30px 28px 26px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1)}
.quote-card::before{content:"“";position:absolute;top:6px;left:22px;font-size:56px;line-height:1;color:var(--gold);opacity:.55;font-family:Georgia,serif}
.quote-card p{position:relative;font-size:16px;color:var(--ink);margin:18px 0 18px;line-height:1.8}
.quote-meta{font-size:14px;color:var(--ink-3);border-top:1px solid var(--line);padding-top:14px}
.logo-wall{display:flex;flex-wrap:wrap;gap:12px}
.logo-wall span{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px dashed var(--line);background:rgba(255,255,255,.6);
  color:var(--ink-3);font-size:14px;font-weight:500;letter-spacing:.02em;
}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:32px 28px;display:flex;flex-direction:column;gap:20px;
  transition:transform .24s ease,box-shadow .24s ease;
}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--sh2)}
.price-card.is-featured{border-color:var(--brand);box-shadow:var(--sh2);padding-top:44px;margin-top:-16px;overflow:hidden}
.price-card.is-featured::before{content:"";position:absolute;top:0;left:0;right:0;height:6px;background:var(--brand)}
.price-flag{position:absolute;top:14px;right:20px}
.price-name{font-size:18px;font-weight:600}
.price-amount{display:flex;align-items:baseline;gap:6px;color:var(--brand)}
.price-amount .val{font-size:40px;font-weight:700;line-height:1;letter-spacing:-.02em}
.price-amount .unit{font-size:14px;color:var(--ink-3)}
.price-desc{font-size:14px;color:var(--ink-3);margin-top:-10px}
.price-list{display:flex;flex-direction:column;gap:12px;font-size:15px;color:var(--ink-2)}
.price-list li{display:flex;gap:10px;align-items:flex-start}
.price-list li::before{
  content:"";flex:0 0 16px;width:16px;height:16px;margin-top:6px;border-radius:50%;
  background:var(--brand-soft);
  background-image:linear-gradient(var(--brand),var(--brand)),linear-gradient(var(--brand),var(--brand));
  background-size:7px 2px,2px 7px;background-position:center;background-repeat:no-repeat;
}
.price-card .btn{width:100%;margin-top:auto}

/* ---------- latest (CMS) ---------- */
.latest-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:start}
.post-feature{
  display:block;overflow:hidden;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.post-feature:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:#D6D3C8}
.post-feature-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt)}
.post-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-feature:hover .post-feature-media img{transform:scale(1.03)}
.post-feature-body{padding:26px 26px 24px}
.post-feature-body h3{font-size:21px;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--ink)}
.post-feature-body p{font-size:15px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3)}
.post-meta .arrow{color:var(--brand);font-weight:600}
.post-list{display:flex;flex-direction:column;gap:16px}
.post-item{
  display:flex;gap:16px;padding:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.post-item:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:#D6D3C8}
.post-thumb{flex:0 0 120px;width:120px;height:90px;border-radius:10px;overflow:hidden;background:var(--bg-alt)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-item:hover .post-thumb img{transform:scale(1.04)}
.post-item-body{min-width:0;display:flex;flex-direction:column;gap:6px}
.post-item-body h3{font-size:16px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--ink)}
.post-item-body p{font-size:14px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.post-item-body .post-time{font-size:13px;color:var(--ink-3);margin-top:auto}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;
  padding:64px 32px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-state .empty-icon{width:52px;height:52px;border-radius:50%;background:var(--bg-alt);display:grid;place-items:center;color:var(--ink-3);font-size:22px}
.empty-state p{font-size:15px;margin:0}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.is-open{border-color:var(--brand);box-shadow:var(--sh2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;
}
.faq-icon{position:relative;flex:0 0 28px;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);transition:background-color .2s ease,border-color .2s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;top:50%;left:50%;background:var(--brand);border-radius:1px;transform:translate(-50%,-50%)}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:opacity .24s ease,transform .24s ease}
.faq-item.is-open .faq-icon{background:var(--brand-soft);border-color:var(--brand)}
.faq-item.is-open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) scaleY(0)}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .24s ease,opacity .24s ease}
.faq-item.is-open .faq-a{opacity:1}
.faq-a-inner{padding:0 24px 22px;font-size:16px;line-height:1.8;color:var(--ink-2)}

/* ---------- final CTA ---------- */
.final-cta{position:relative;overflow:hidden;background:var(--brand-deep);color:#fff;padding:96px 0;text-align:center}
.final-cta::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:72px 72px;
}
.final-cta .container{position:relative;z-index:2;max-width:820px}
.final-cta h2{color:#fff;margin-bottom:16px}
.final-cta p{color:rgba(255,255,255,.78);font-size:17px;margin-bottom:34px}
.final-cta .cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(251,250,246,.8);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:56px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .logo-mark i{background:rgba(251,250,246,.85)}
.footer-brand .logo-mark i:nth-child(2),
.footer-brand .logo-mark i:nth-child(4),
.footer-brand .logo-mark i:nth-child(9){opacity:.4}
.footer-brand .logo-mark i:nth-child(5){background:var(--accent);opacity:1}
.footer-brand .logo-text{color:#fff;font-size:18px}
.site-footer p{color:rgba(251,250,246,.62);font-size:14px;line-height:1.8;max-width:30em}
.footer-col h4{font-size:14px;font-weight:500;color:rgba(251,250,246,.5);margin-bottom:18px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:15px;color:rgba(251,250,246,.8);transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line-dark);padding:22px 0 32px;font-size:13px;color:rgba(251,250,246,.55);
}
.footer-bottom a{color:rgba(251,250,246,.7);transition:color .2s ease}
.footer-bottom a:hover{color:#fff}

/* ---------- floating CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:70;display:flex;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta .btn{box-shadow:var(--sh3)}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{padding:0 28px}
}
@media (max-width:1023px){
  :root{--sec-y:78px}
  .hero{padding:56px 0 68px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-media{max-width:640px}
  .demo-wrap{grid-template-columns:1fr;gap:28px}
  .bento{grid-template-columns:1fr 1fr}
  .bento-main{grid-column:span 2;grid-row:auto;min-height:340px}
  .mini-card{grid-column:span 2}
  .price-grid{grid-template-columns:1fr;gap:20px}
  .price-card.is-featured{margin-top:0}
  .latest-grid{grid-template-columns:1fr;gap:24px}
  .stats{grid-template-columns:1fr 1fr}
  .stats li{padding:22px}
  .stats li:nth-child(3){border-left:0;border-top:1px solid var(--line)}
  .stats li:nth-child(4){border-top:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .hide-md{display:none}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:104px}
  .container{padding:0 20px}
  :root{--sec-y:60px}
  .header-inner{flex-wrap:wrap;gap:10px;padding:10px 0 8px;min-height:0}
  .logo{order:1}
  .header-actions{order:2;margin-left:auto}
  .nav-chips{
    order:3;flex:1 0 100%;width:100%;justify-content:flex-start;padding:2px 0 6px;
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  }
  .hero h1{max-width:none}
  .trust-bar{margin-top:32px}
  .trust-bar li{padding:0 16px}
  .trust-bar strong{font-size:19px}
  .bento{grid-template-columns:1fr}
  .bento-main,.mini-card{grid-column:span 1}
  .bento-main{min-height:300px}
  .bento-main-body{padding:24px}
  .demo-steps{flex-direction:row;overflow-x:auto;gap:10px;padding-bottom:6px;scrollbar-width:none}
  .demo-steps::-webkit-scrollbar{display:none}
  .step-chip{min-width:210px;flex:0 0 auto}
  .stats{grid-template-columns:1fr}
  .stats li{border-left:0;border-top:1px solid var(--line)}
  .stats li:first-child{border-top:0}
  .quote-grid{grid-template-columns:1fr}
  .price-card{padding:26px 22px}
  .post-item{flex-direction:column}
  .post-thumb{flex:none;width:100%;height:0;padding-bottom:52%}
  .post-thumb img{position:absolute}
  .post-thumb{position:relative}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .faq-q{padding:18px 20px;font-size:16px}
  .faq-a-inner{padding:0 20px 20px}
  .final-cta{padding:72px 0}
  .float-cta{
    left:0;right:0;bottom:0;padding:8px 16px calc(8px + env(safe-area-inset-bottom,0px));
    background:rgba(251,250,246,.97);border-top:1px solid var(--line);gap:10px;
    transform:translateY(100%);box-shadow:0 -8px 24px rgba(11,20,18,.08);
  }
  .float-cta.is-visible{transform:translateY(0)}
  .float-cta .btn{flex:1 1 auto}
  .float-cta .btn-top{flex:0 0 56px;padding:0;font-size:13px}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .hero-cta .btn{width:100%}
  h3{font-size:19px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  .bento-main:hover img,.post-feature:hover .post-feature-media img,.post-item:hover .post-thumb img{transform:none}
}

/* roulang page: article */
:root{
  --brand:#0F5A4E;
  --brand-deep:#093B33;
  --brand-soft:#E6F0ED;
  --accent:#FF7A45;
  --accent-soft:#FFEDE4;
  --gold:#E8B33D;
  --ink:#16201E;
  --ink-2:#43524F;
  --ink-3:#7C8A87;
  --bg:#FBFAF6;
  --bg-alt:#F3F0E8;
  --bg-dark:#0B1412;
  --line:#E3E1DA;
  --line-dark:rgba(255,255,255,.12);
  --r-btn:10px;
  --r-card:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,20,18,.05);
  --sh-2:0 8px 24px rgba(11,20,18,.08);
  --sh-3:0 16px 40px rgba(11,20,18,.12);
  --container:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  padding-bottom:96px;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ===== 品牌标识 ===== */
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo-mark{
  width:20px;height:20px;flex:0 0 20px;
  display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:2px;
}
.logo-mark i{display:block;background:var(--brand);border-radius:1px;}
.logo-mark i:nth-child(5){background:var(--accent);}
.logo-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.site-footer .logo-mark i{background:#7FBFAF;}
.site-footer .logo-mark i:nth-child(5){background:var(--accent);}
.site-footer .logo-text{color:#F1F4F2;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,250,246,0);
  border-bottom:1px solid transparent;
  transition:background-color .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.site-header.is-stuck{
  background:rgba(251,250,246,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:72px;
}
.nav-chips{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;scrollbar-width:none;
  padding:4px 2px;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:36px;padding:0 16px;
  font-size:14px;font-weight:500;color:var(--ink-2);
  background:transparent;border:1px solid var(--line);border-radius:var(--r-pill);
  transition:all .2s ease;white-space:nowrap;
}
.chip:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px);}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-btn);border:1px solid transparent;
  cursor:pointer;transition:all .2s ease;max-width:100%;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:#0c4c42;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px);}
.btn-light{background:#FBFAF6;color:var(--ink);border-color:#FBFAF6;}
.btn-light:hover{background:#fff;color:var(--brand-deep);transform:translateY(-1px);}
.btn-line{background:transparent;color:#F1F4F2;border-color:var(--line-dark);}
.btn-line:hover{border-color:#FBFAF6;color:#fff;transform:translateY(-1px);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;height:auto;padding:0;
  font-size:15px;font-weight:600;color:var(--brand);
}
.btn-link::after{content:"→";transition:transform .2s ease;}
.btn-link:hover::after{transform:translateX(3px);}

/* ===== 面包屑 ===== */
.crumbs{background:var(--bg);border-bottom:1px solid var(--line);}
.crumbs-inner{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding:16px 0;font-size:13.5px;color:var(--ink-3);
}
.crumbs a{color:var(--ink-2);text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px;}
.crumbs a:hover{color:var(--brand);text-decoration-color:var(--brand);}
.crumb-sep{color:var(--line);}
.crumb-now{color:var(--ink-3);}

/* ===== 文章页首 ===== */
.article-head{
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(15,90,78,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(15,90,78,.045) 1px,transparent 1px);
  background-size:32px 32px;
  border-bottom:1px solid var(--line);
}
.article-head-inner{padding:44px 0 36px;max-width:860px;}
.article-badges{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:18px;}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  font-size:12.5px;font-weight:600;border-radius:var(--r-pill);
}
.badge-brand{background:var(--brand-soft);color:var(--brand);}
.badge-neutral{background:var(--bg-alt);color:var(--ink-2);}
.badge-gold{background:#FBF0D8;color:#8A6712;}
.article-head h1{
  font-size:40px;line-height:1.35;font-weight:700;letter-spacing:-.01em;
  margin-bottom:18px;
}
.article-sub{font-size:16.5px;line-height:1.85;color:var(--ink-2);max-width:720px;}
.article-meta{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  margin-top:24px;padding-top:20px;border-top:1px dashed var(--line);
  font-size:13.5px;color:var(--ink-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.kw-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:18px;}
.kw-chip{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  font-size:13px;color:var(--ink-2);background:var(--bg);
  border:1px solid var(--line);border-radius:var(--r-pill);transition:all .2s ease;
}
.kw-chip:hover{border-color:var(--brand);color:var(--brand);}

/* ===== 正文布局 ===== */
.article-main{padding:56px 0 88px;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:48px;align-items:start;
}
.article-layout.has-toc{grid-template-columns:minmax(0,1fr) 240px;}
.article-body{
  width:100%;max-width:760px;margin:0 auto;
  font-size:17px;line-height:1.85;color:var(--ink);
  overflow-wrap:break-word;
}
.article-body > * + *{margin-top:20px;}
.article-body p{color:var(--ink);}
.article-body h2{
  font-size:30px;line-height:1.35;font-weight:600;
  margin:52px 0 0;padding:0 0 12px 14px;
  border-left:4px solid var(--brand);
  border-bottom:1px solid var(--line);
  scroll-margin-top:96px;
}
.article-body h3{font-size:22px;line-height:1.4;font-weight:600;margin:36px 0 0;scroll-margin-top:96px;}
.article-body h4{font-size:18px;font-weight:600;margin:28px 0 0;}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-color:rgba(15,90,78,.35);text-underline-offset:4px;}
.article-body a:hover{text-decoration-color:var(--brand);}
.article-body ul,.article-body ol{padding-left:24px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{line-height:1.8;}
.article-body li + li{margin-top:8px;}
.article-body blockquote{
  background:var(--brand-soft);
  border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;
  padding:18px 22px;color:var(--ink-2);
}
.article-body blockquote > * + *{margin-top:12px;}
.article-body img{border-radius:12px;margin-left:auto;margin-right:auto;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;line-height:1.7;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.9em;background:var(--bg-alt);border:1px solid var(--line);
  padding:2px 6px;border-radius:6px;color:var(--brand-deep);
}
.article-body pre{
  background:var(--bg-dark);color:#E7ECE9;padding:18px 20px;
  border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;border:none;color:inherit;padding:0;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--brand-soft);color:var(--brand-deep);font-weight:600;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0;}

/* ===== 侧栏目录 ===== */
.toc-aside{position:sticky;top:100px;display:none;}
.article-layout.has-toc .toc-aside{display:block;}
.toc-box{
  border:1px solid var(--line);background:var(--bg);
  border-radius:var(--r-card);box-shadow:var(--sh-1);padding:18px;
}
.toc-title{font-size:13px;font-weight:600;color:var(--ink-3);letter-spacing:.08em;margin-bottom:12px;}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow:auto;}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--ink-2);
  padding:6px 10px;border-radius:8px;border-left:2px solid transparent;
}
.toc-list a:hover{background:var(--bg-alt);color:var(--brand-deep);}
.toc-list a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;border-left-color:var(--brand);}

.toc-mobile{display:none;margin-bottom:24px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--bg);box-shadow:var(--sh-1);}
.toc-mobile summary{
  cursor:pointer;list-style:none;padding:14px 18px;font-size:14.5px;font-weight:600;color:var(--brand);
}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile .toc-list{padding:0 12px 14px;}

/* ===== 正文底部 ===== */
.article-foot{max-width:760px;margin:56px auto 0;}
.article-foot .kw-row{margin-top:0;}
.foot-actions{
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;
  margin-top:26px;padding-top:24px;border-top:1px solid var(--line);
}
.tag-label{font-size:13px;color:var(--ink-3);}

.related{padding:64px 0;background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:30px;line-height:1.35;font-weight:600;}
.section-head p{font-size:14.5px;color:var(--ink-3);margin-top:6px;}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--bg);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#CFDAD6;}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease;}
.card:hover .card-cover img{transform:scale(1.03);}
.card-cover .badge{position:absolute;left:12px;top:12px;background:rgba(251,250,246,.94);color:var(--brand);}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:18px;line-height:1.5;font-weight:600;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{font-size:14.5px;line-height:1.75;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}
.card-foot .btn-link{font-size:13.5px;}

/* ===== 空态 ===== */
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:64px 24px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--r-lg);
  background:var(--bg);
}
.empty-icon{
  width:52px;height:52px;border-radius:var(--r-card);
  display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);
  gap:3px;padding:9px;background:var(--brand-soft);
}
.empty-icon i{background:#9CC6BB;border-radius:1px;}
.empty-state h2{font-size:22px;font-weight:600;}
.empty-state p{font-size:15px;color:var(--ink-2);max-width:520px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-dark);color:rgba(251,250,246,.8);padding:72px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-col h4{font-size:14px;font-weight:600;color:rgba(251,250,246,.55);margin-bottom:16px;letter-spacing:.04em;}
.footer-col p{font-size:14.5px;line-height:1.85;color:rgba(251,250,246,.7);max-width:340px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:15px;color:rgba(251,250,246,.8);}
.footer-col ul a:hover{color:#FBFAF6;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:56px;padding-top:22px;border-top:1px solid var(--line-dark);
  font-size:13.5px;color:rgba(251,250,246,.6);
}
.footer-bottom a{color:rgba(251,250,246,.8);}
.footer-bottom a:hover{color:#FBFAF6;}

/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:70;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .btn{box-shadow:var(--sh-3);}
.float-cta-mobile{display:none;}

@media (max-width:1179px){
  .article-layout.has-toc{grid-template-columns:minmax(0,1fr);}
  .article-layout.has-toc .toc-aside{display:none;}
  .toc-mobile{display:block;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .header-inner{min-height:66px;}
  .hide-md{display:none;}
  .article-head-inner{padding:36px 0 30px;}
  .article-head h1{font-size:34px;}
  .article-body h2{font-size:26px;margin-top:44px;}
  .article-body h3{font-size:20px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  body{padding-bottom:78px;}
  .container{padding:0 20px;}
  .header-inner{flex-wrap:nowrap;gap:12px;min-height:62px;}
  .logo-text{font-size:17px;}
  .nav-chips{flex:1 1 auto;}
  .header-actions .btn-primary{height:34px;padding:0 12px;font-size:13px;}
  .article-head h1{font-size:30px;}
  .article-sub{font-size:15.5px;}
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:24px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .section-head h2{font-size:26px;}
  .card-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-cta{
    right:0;bottom:0;left:0;transform:none;
    opacity:1;visibility:visible;
    background:rgba(251,250,246,.96);border-top:1px solid var(--line);
    box-shadow:0 -6px 20px rgba(11,20,18,.08);
    padding:8px 16px calc(8px + env(safe-area-inset-bottom));
    display:flex;align-items:center;gap:10px;
  }
  .float-cta .btn{flex:1 1 auto;height:44px;font-size:14.5px;box-shadow:none;}
  .float-cta .top-btn{
    flex:0 0 48px;height:44px;padding:0;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:var(--r-btn);
    background:var(--bg);color:var(--ink-2);font-size:13px;font-weight:600;
  }
}
@media (max-width:479px){
  .container{padding:0 16px;}
  .article-head h1{font-size:27px;}
  .btn{width:100%;max-width:100%;}
  .foot-actions{flex-direction:column;align-items:stretch;gap:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .card:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --brand:#0F5A4E;
  --brand-deep:#093B33;
  --brand-soft:#E6F0ED;
  --accent:#FF7A45;
  --accent-soft:#FFEDE4;
  --gold:#E8B33D;
  --ink:#16201E;
  --ink-2:#43524F;
  --ink-3:#7C8A87;
  --bg:#FBFAF6;
  --bg-alt:#F3F0E8;
  --dark:#0B1412;
  --line:#E3E1DA;
  --white:#FFFFFF;
  --r-btn:10px;
  --r-card:14px;
  --r-block:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,20,18,.05);
  --sh-2:0 8px 24px rgba(11,20,18,.08);
  --sh-3:0 16px 40px rgba(11,20,18,.12);
  --sp-section:104px;
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
input,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sp-section) 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:var(--dark);color:#F2F0EA}
section[id]{scroll-margin-top:96px}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(251,250,246,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:70px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:20px;height:20px;display:grid;
  grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);
  gap:2px;
}
.logo-mark i{display:block;background:var(--brand);border-radius:2px}
.logo-mark i:nth-child(5){background:var(--accent)}
.logo-text{font-weight:700;font-size:19px;letter-spacing:.2px;color:var(--ink);white-space:nowrap}
.nav-chips{display:flex;align-items:center;gap:8px;margin:0 auto;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;
  height:36px;padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:transparent;
  color:var(--ink-2);
  font-size:14.5px;font-weight:500;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff}
.chip.is-active:hover{background:var(--brand-deep);color:#fff}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px;border-radius:9px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft)}
.btn-light{background:#FBFAF6;color:var(--dark)}
.btn-light:hover{background:#fff;transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#F2F0EA;border-color:rgba(255,255,255,.32)}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:14.5px;
}
.text-link::after{content:"→";transition:transform .2s ease}
.text-link:hover::after{transform:translateX(3px)}
.text-link:hover{text-decoration:underline;text-underline-offset:4px}

/* 窄 Hero 条 */
.hero-strip{
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
  padding:64px 0 52px;
}
.hero-strip .strip-inner{
  border-left:4px solid var(--brand);
  padding-left:24px;
  max-width:860px;
}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--ink-3);margin-bottom:18px}
.crumbs a:hover{color:var(--brand)}
.hero-strip h1{
  font-size:42px;
  font-weight:700;
  letter-spacing:-.3px;
  color:var(--ink);
}
.hero-strip .strip-sub{
  margin-top:14px;
  font-size:17px;
  color:var(--ink-2);
  max-width:640px;
}
.strip-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 13px;
  border-radius:var(--r-pill);
  background:#FBFAF6;
  border:1px solid var(--line);
  font-size:13.5px;color:var(--ink-2);
  transition:border-color .2s ease,color .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand)}

/* 主布局 */
.layout-grid{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.filter-chips{
  display:flex;flex-wrap:wrap;gap:8px;
  padding:18px 0 26px;
  border-bottom:1px solid var(--line);
  margin-bottom:30px;
}
.filter-chips .chip{height:34px;font-size:14px;background:#FBFAF6}
.filter-chips .chip:hover{border-color:var(--brand);color:var(--brand)}

/* 条目卡 */
.entry-list{display:flex;flex-direction:column;gap:20px}
.entry-card{
  display:flex;gap:20px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:20px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#D6D3CA}
.entry-thumb{
  flex:0 0 160px;width:160px;height:120px;
  border-radius:12px;overflow:hidden;background:var(--bg-alt);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.entry-card:hover .entry-thumb img{transform:scale(1.03)}
.entry-body{flex:1 1 auto;min-width:0}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;
  background:var(--brand-soft);color:var(--brand);
}
.badge-gold{background:#FBF1D9;color:#8A6415}
.badge-neutral{background:var(--bg-alt);color:var(--ink-2)}
.entry-body h3{
  font-size:21px;font-weight:600;
  margin:10px 0 8px;
}
.entry-body h3 a:hover{color:var(--brand)}
.entry-body p{color:var(--ink-2);font-size:15.5px}
.entry-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:14px;padding-top:12px;
  border-top:1px dashed var(--line);
}
.entry-foot .meta{font-size:13.5px;color:var(--ink-3)}

/* 穿插 CTA 条 */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  background:var(--brand-soft);
  border:1px solid #CFE1DC;
  border-radius:var(--r-card);
  padding:22px 24px;
}
.cta-band h3{font-size:19px;color:var(--brand-deep)}
.cta-band p{color:var(--ink-2);font-size:15px;margin-top:4px}

/* 侧栏 */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:20px;
}
.side-card h4{
  font-size:14px;font-weight:600;color:var(--ink-3);
  letter-spacing:.4px;margin-bottom:14px;
}
.toc-list li+li{margin-top:2px}
.toc-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;
  border-radius:9px;
  font-size:15px;color:var(--ink-2);
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand)}
.toc-list a.is-current{color:var(--brand);border-left-color:var(--brand);background:var(--brand-soft);font-weight:600}
.toc-list a span{font-size:12.5px;color:var(--ink-3);font-weight:600}
.side-chips{display:flex;flex-wrap:wrap;gap:8px}
.side-chips a{
  display:inline-flex;align-items:center;height:32px;padding:0 13px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:13.5px;color:var(--ink-2);
}
.side-chips a:hover{border-color:var(--brand);color:var(--brand)}
.side-cta{background:var(--brand);color:#fff;border-color:var(--brand)}
.side-cta h4{color:rgba(255,255,255,.72)}
.side-cta p{font-size:14.5px;color:rgba(255,255,255,.88);margin-bottom:16px}
.side-cta .btn{width:100%}

/* 适用场景 */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;
  transition:transform .22s ease,box-shadow .22s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.scene-card .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;
  background:var(--accent-soft);color:#B0431B;
  font-weight:700;font-size:15px;
}
.scene-card h3{font-size:20px;margin:16px 0 10px}
.scene-card p{color:var(--ink-2);font-size:15.5px}
.scene-card ul{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.scene-card li{position:relative;padding-left:18px;font-size:14.5px;color:var(--ink-2)}
.scene-card li::before{
  content:"";position:absolute;left:0;top:11px;
  width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.section-head{max-width:760px}
.section-head h2{font-size:32px;letter-spacing:-.2px}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16.5px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:600;color:var(--brand);
  letter-spacing:.5px;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--gold);border-radius:2px}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.flow-step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:24px;position:relative;
}
.flow-step::after{
  content:"";position:absolute;top:34px;right:-14px;
  width:12px;height:1px;background:var(--line);
}
.flow-step:last-child::after{display:none}
.flow-step .step-index{
  font-size:13.5px;font-weight:700;color:var(--brand);
  letter-spacing:1px;
}
.flow-step h3{font-size:18.5px;margin:12px 0 8px}
.flow-step p{color:var(--ink-2);font-size:15px}

/* FAQ */
.faq-wrap{max-width:840px;margin:44px auto 0}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-item+.faq-item{margin-top:12px}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:20px 22px;
  font-size:17px;font-weight:600;color:var(--ink);
  transition:background .2s ease;
}
.faq-q:hover{background:#FCFBF7}
.faq-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:17px;line-height:1;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .24s ease;
}
.faq-item.is-open .faq-icon{background:var(--brand);border-color:var(--brand);color:#fff;transform:rotate(180deg)}
.faq-a{
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .24s ease,opacity .24s ease,padding .24s ease;
  padding:0 22px;
}
.faq-item.is-open .faq-a{opacity:1;padding:0 22px 22px}
.faq-a p{color:var(--ink-2);font-size:15.5px;line-height:1.8}

/* 留言表单 */
.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:48px;align-items:start}
.contact-info ul{display:flex;flex-direction:column;gap:16px;margin-top:26px}
.contact-info li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink-2)}
.contact-info li b{color:var(--ink);font-weight:600;display:block}
.dot{
  flex:0 0 8px;width:8px;height:8px;border-radius:50%;
  background:var(--gold);margin-top:9px;
}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-block);
  box-shadow:var(--sh-2);padding:30px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:14px;font-weight:600;color:var(--ink-2)}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:#FCFBF7;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:118px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{
  outline:none;background:#fff;
  border-color:var(--brand);
  box-shadow:0 0 0 4px var(--brand-soft);
}
.form-note{font-size:13px;color:var(--ink-3);margin-top:12px}
.form-status{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-btn);
  background:var(--brand-soft);color:var(--brand-deep);font-size:14.5px;font-weight:500;
}
.form-status.is-visible{display:block}
.btn.is-loading{position:relative;color:transparent}
.btn.is-loading::after{
  content:"";position:absolute;width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.5);border-top-color:#fff;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* 尾屏 CTA */
.final-cta{
  position:relative;overflow:hidden;
  background:var(--dark);color:#F2F0EA;
  padding:88px 0;
  text-align:center;
}
.final-cta::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:80px 80px;
  opacity:.5;pointer-events:none;
}
.final-cta .container{position:relative;z-index:1}
.final-cta h2{font-size:34px;color:#fff}
.final-cta p{color:rgba(242,240,234,.75);margin:16px auto 0;max-width:620px}
.final-cta .actions{display:flex;justify-content:center;gap:14px;margin-top:32px;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(242,240,234,.8);padding:72px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.site-footer .logo-mark i{background:rgba(242,240,234,.9)}
.site-footer .logo-mark i:nth-child(5){background:var(--accent)}
.site-footer .logo-text{color:#F2F0EA}
.footer-col p{font-size:14.5px;color:rgba(242,240,234,.65);max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:rgba(242,240,234,.5);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:15px;color:rgba(242,240,234,.8)}
.footer-col ul a:hover{color:#FBFAF6;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding:22px 0 26px;
  font-size:13.5px;color:rgba(242,240,234,.55);
}
.footer-bottom a{color:rgba(242,240,234,.8)}
.footer-bottom a:hover{color:#fff}

/* 浮动 CTA */
.float-dock{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:flex;align-items:center;gap:10px;
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .28s ease,transform .28s ease;
}
.float-dock.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-dock .btn{box-shadow:var(--sh-3)}
.dock-top{
  display:none;
  width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--line);
  align-items:center;justify-content:center;
  color:var(--brand);font-size:16px;box-shadow:var(--sh-2);
}
.hide-md{display:inline-flex}
body{padding-bottom:0}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .entry-card:hover,.scene-card:hover,.btn:hover{transform:none}
}

@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:80px 0}
  .hide-md{display:none}
  .layout-grid{grid-template-columns:1fr}
  .sidebar{position:static}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow-step::after{display:none}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-strip h1{font-size:36px}
  .section-head h2{font-size:28px}
}

@media (max-width:900px){
  .header-inner{flex-wrap:wrap;padding-top:10px;padding-bottom:10px;gap:12px}
  .nav-chips{
    order:3;width:100%;margin:0;
    padding-bottom:4px;
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
  }
  .header-actions{margin-left:auto}
}

@media (max-width:767px){
  body{font-size:16px;padding-bottom:76px}
  .container{padding:0 20px}
  .section{padding:64px 0}
  .hero-strip{padding:44px 0 36px}
  .hero-strip .strip-inner{padding-left:16px}
  .hero-strip h1{font-size:30px}
  .hero-strip .strip-sub{font-size:15.5px}
  .section-head h2{font-size:25px}
  .entry-card{flex-direction:column;padding:16px}
  .entry-thumb{flex:0 0 auto;width:100%;height:180px}
  .entry-foot{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .scene-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .contact-grid{gap:26px}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:22px}
  .final-cta{padding:64px 0}
  .final-cta h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .float-dock{
    left:0;right:0;bottom:0;gap:0;
    padding:8px 16px calc(8px + env(safe-area-inset-bottom));
    background:rgba(251,250,246,.96);
    backdrop-filter:blur(10px);
    border-top:1px solid var(--line);
    transform:translateY(100%);
  }
  .float-dock.is-visible{transform:translateY(0)}
  .float-dock .btn{flex:1 1 auto;height:46px}
  .dock-top{display:inline-flex;flex:0 0 46px}
}

@media (max-width:479px){
  .container{padding:0 16px}
  .hero-strip h1{font-size:27px}
  .filter-chips{gap:6px}
  .chip{height:33px;padding:0 13px;font-size:13.5px}
  .logo-text{font-size:17px}
}

/* roulang page: category2 */
:root{
  --primary:#0F5A4E;
  --primary-deep:#093B33;
  --primary-soft:#E6F0ED;
  --accent:#FF7A45;
  --accent-soft:#FFEDE4;
  --gold:#E8B33D;
  --ink:#16201E;
  --ink-2:#43524F;
  --ink-3:#7C8A87;
  --bg:#FBFAF6;
  --bg-alt:#F3F0E8;
  --dark:#0B1412;
  --line:#E3E1DA;
  --line-dark:rgba(255,255,255,.12);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,20,18,.05);
  --sh-2:0 8px 24px rgba(11,20,18,.08);
  --sh-3:0 16px 40px rgba(11,20,18,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:92px;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,2.6vw,33px);max-width:640px;}
.section-head p{margin-top:12px;color:var(--ink-2);max-width:660px;font-size:16px;}
.section-head.center{flex-direction:column;align-items:center;text-align:center;}
.section-head.center p{margin-left:auto;margin-right:auto;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-soft);
  padding:5px 12px;border-radius:var(--r-pill);margin-bottom:16px;
}
.eyebrow-light{color:#fff;background:rgba(255,255,255,.12);}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:2px;background:currentColor;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent;}
.btn-outline:hover{background:var(--primary-soft);transform:translateY(-1px);}
.btn-outline-light{border-color:rgba(255,255,255,.42);color:#FBFAF6;background:transparent;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7);transform:translateY(-1px);}
.btn-light{background:#FBFAF6;color:var(--dark);}
.btn-light:hover{background:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--primary);
  border-bottom:1px solid transparent;transition:border-color .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.link-arrow:hover{border-bottom-color:var(--primary);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg);
  border-bottom:1px solid transparent;
  transition:box-shadow .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(251,250,246,.97);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;font-weight:700;font-size:18px;color:var(--ink);}
.logo-text{white-space:nowrap;}
.logo-mark{
  display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);
  gap:2px;width:20px;height:20px;color:var(--primary);flex:0 0 auto;
}
.logo-mark i{background:currentColor;border-radius:1px;opacity:.92;}
.logo-mark i:nth-child(5){opacity:.32;}

.nav-chips{
  display:flex;align-items:center;gap:8px;flex:1 1 auto;justify-content:center;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  color:var(--ink-2);font-size:14px;font-weight:500;white-space:nowrap;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.chip:hover{color:var(--primary);border-color:var(--primary);}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;}
.chip.is-active:hover{background:var(--primary-deep);border-color:var(--primary-deep);color:#fff;}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:88px 0 92px;
  background-image:linear-gradient(135deg,rgba(15,90,78,.95),rgba(9,59,51,.92)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.hero-deco{
  position:absolute;right:36px;bottom:36px;width:154px;height:154px;
  border:1px solid rgba(255,255,255,.3);opacity:.24;pointer-events:none;
  background-image:linear-gradient(to right,rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:51px 51px;
}
.hero-inner{position:relative;z-index:2;max-width:820px;}
.hero h1{font-size:clamp(30px,4.4vw,46px);color:#fff;margin-bottom:18px;}
.hero-sub{font-size:17px;color:rgba(255,255,255,.86);max-width:640px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:40px;}
.hero-trust{display:flex;flex-wrap:wrap;align-items:center;gap:0 24px;}
.hero-trust li{
  font-size:14px;color:rgba(255,255,255,.82);position:relative;padding-right:24px;
}
.hero-trust li::after{content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);width:1px;height:14px;background:rgba(255,255,255,.28);}
.hero-trust li:last-child{padding-right:0;}
.hero-trust li:last-child::after{display:none;}

/* ---------- 数据条 ---------- */
.section-stats{padding:56px 0 0;}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.stat:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.stat-num{display:block;font-size:34px;font-weight:700;line-height:1.1;color:var(--primary);}
.stat-num i{font-style:normal;font-size:15px;font-weight:500;color:var(--ink-3);margin-left:4px;}
.stat p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.7;}

/* ---------- 卖点 / 参数区 ---------- */
.feature-wrap{display:grid;grid-template-columns:5fr 6fr;gap:64px;align-items:start;}
.feature-copy h2{font-size:clamp(24px,2.6vw,33px);margin-bottom:18px;}
.feature-copy p{color:var(--ink-2);margin-bottom:18px;}
.feature-copy .btn{margin-top:10px;}
.param-list{display:grid;gap:14px;}
.param-list li{
  display:flex;gap:18px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.param-list li:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#CFDAD6;}
.param-idx{
  flex:0 0 auto;width:34px;height:34px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:700;
}
.param-list h3{font-size:17px;margin-bottom:6px;}
.param-list p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cover-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.cover-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#CFDAD6;}
.cover-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.cover-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.cover-card:hover .cover-media img{transform:scale(1.03);}
.badge{
  position:absolute;left:12px;top:12px;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:rgba(230,240,237,.96);color:var(--primary);
  font-size:12.5px;font-weight:600;letter-spacing:.01em;
}
.cover-body{display:flex;flex-direction:column;flex:1 1 auto;padding:20px 22px 22px;}
.cover-title{font-size:18px;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cover-desc{
  font-size:14.5px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:18px;
}
.cover-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--ink-3);
}
.cover-meta .arrow{color:var(--primary);font-weight:700;transition:transform .24s var(--ease);}
.cover-card:hover .cover-meta .arrow{transform:translateX(3px);}

/* ---------- 流程步骤 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--sh-1);position:relative;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.step-idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:var(--r-pill);
  background:var(--accent-soft);color:var(--accent);font-weight:700;font-size:15px;
  margin-bottom:16px;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}

/* ---------- 深色状态区 ---------- */
.section-dark{background:var(--dark);color:#fff;position:relative;overflow:hidden;}
.section-dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:80px 80px;
}
.section-dark > .container{position:relative;z-index:2;}
.proof-wrap{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.proof-copy h2{font-size:clamp(24px,2.6vw,32px);color:#fff;margin-bottom:18px;}
.proof-copy p{color:rgba(251,250,246,.74);font-size:15.5px;margin-bottom:14px;}
.status-board{display:grid;gap:12px;}
.status-board li{
  display:flex;align-items:center;gap:14px;
  padding:16px 20px;border:1px solid var(--line-dark);border-radius:var(--r-md);
  background:rgba(255,255,255,.04);
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.status-board li:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.2);}
.status-board strong{display:block;font-size:15.5px;color:#fff;font-weight:600;}
.status-board span{display:block;font-size:13.5px;color:rgba(251,250,246,.66);}
.status-board em{
  margin-left:auto;font-style:normal;font-size:13px;font-weight:600;
  color:var(--gold);white-space:nowrap;
}
.dot{width:9px;height:9px;border-radius:50%;flex:0 0 auto;background:var(--ink-3);}
.dot-live{background:#3FBF8F;box-shadow:0 0 0 4px rgba(63,191,143,.16);}
.dot-wait{background:var(--gold);box-shadow:0 0 0 4px rgba(232,179,61,.16);}
.dot-done{background:#6E7C79;box-shadow:0 0 0 4px rgba(110,124,121,.16);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-list{display:grid;gap:14px;margin-top:8px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.faq-item.is-open{box-shadow:var(--sh-2);border-color:#CFDAD6;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;font-size:16.5px;font-weight:600;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  position:relative;flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);transition:background .24s var(--ease),border-color .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--primary);border-radius:1px;transition:opacity .24s var(--ease),background .24s var(--ease);
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;}
.faq-q[aria-expanded="true"] .faq-icon{background:var(--primary);border-color:var(--primary);}
.faq-q[aria-expanded="true"] .faq-icon::before{background:#fff;}
.faq-q[aria-expanded="true"] .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .24s var(--ease),opacity .24s var(--ease);}
.faq-a p{padding:0 22px 22px;font-size:15.5px;color:var(--ink-2);line-height:1.8;}
.faq-a p + p{margin-top:12px;}

/* ---------- 底部 CTA 横条 ---------- */
.cta-bar{
  background:var(--primary);color:#fff;border-radius:var(--r-lg);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-2);
}
.cta-bar h2{font-size:clamp(22px,2.4vw,30px);color:#fff;margin-bottom:10px;}
.cta-bar p{color:rgba(255,255,255,.82);font-size:15.5px;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(251,250,246,.8);padding:72px 0 32px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#FBFAF6;font-weight:700;font-size:18px;margin-bottom:16px;}
.site-footer .logo-mark{color:#E6F0ED;}
.footer-col h4{font-size:14px;color:var(--ink-3);font-weight:600;letter-spacing:.04em;margin-bottom:16px;}
.footer-col p{font-size:14.5px;color:rgba(251,250,246,.66);line-height:1.8;max-width:340px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:15px;color:rgba(251,250,246,.8);transition:color .2s var(--ease),padding-left .2s var(--ease);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:rgba(251,250,246,.55);
}
.footer-bottom a{color:rgba(251,250,246,.75);}
.footer-bottom a:hover{color:#fff;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:70;
  display:flex;align-items:center;gap:10px;
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .28s var(--ease),transform .28s var(--ease);
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta .btn{box-shadow:var(--sh-3);}
.to-top{
  width:48px;height:48px;border-radius:50%;
  background:#fff;border:1px solid var(--line);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;box-shadow:var(--sh-2);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease);
}
.to-top:hover{transform:translateY(-2px);box-shadow:var(--sh-3);}
.to-top.hide-desktop{display:none;}

body{padding-bottom:0;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .stats-row{grid-template-columns:repeat(4,1fr);gap:20px;}
  .card-grid{gap:20px;}
}

@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:76px 0;}
  .hide-md{display:none;}
  .nav-chips{
    justify-content:flex-start;
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
  }
  .hero{padding:68px 0 76px;}
  .hero-deco{width:120px;height:120px;right:24px;bottom:24px;background-size:40px 40px;}
  .feature-wrap{grid-template-columns:1fr;gap:36px;}
  .proof-wrap{grid-template-columns:1fr;gap:32px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .step-grid{grid-template-columns:repeat(2,1fr);}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:36px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  body{padding-bottom:96px;}
  .float-cta{
    left:0;right:0;bottom:0;gap:12px;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px));
    background:rgba(251,250,246,.97);
    border-top:1px solid var(--line);
    transform:translateY(100%);
    align-items:center;
  }
  .float-cta.is-visible{transform:translateY(0);}
  .float-cta .btn{flex:1 1 auto;height:44px;font-size:15px;}
  .to-top{width:44px;height:44px;flex:0 0 auto;}
  .to-top.hide-desktop{display:inline-flex;}
}

@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-stats{padding:40px 0 0;}
  .header-inner{min-height:64px;gap:12px;}
  .logo{font-size:17px;}
  .hero{padding:52px 0 60px;}
  .hero-sub{font-size:16px;margin-bottom:26px;}
  .hero-actions{margin-bottom:30px;}
  .hero-trust{gap:10px 20px;}
  .hero-trust li{font-size:13.5px;padding-right:20px;}
  .stats-row{grid-template-columns:repeat(2,1fr);gap:14px;}
  .stat{padding:18px;}
  .stat-num{font-size:28px;}
  .card-grid{grid-template-columns:1fr;}
  .step-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .cta-bar{padding:28px 24px;border-radius:var(--r-md);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-col:first-child{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}

@media (max-width:519px){
  .container{padding:0 16px;}
  .logo-text{font-size:16px;}
  .logo-mark{width:18px;height:18px;}
  .chip{height:34px;padding:0 14px;font-size:13.5px;}
  .header-actions .btn-sm{padding:0 14px;font-size:13px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 calc(50% - 5px);min-width:0;padding:0 14px;font-size:15px;}
  .stats-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-q{font-size:15.5px;padding:18px;}
  .faq-a p{padding:0 18px 18px;font-size:15px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .cover-card:hover,.stat:hover,.step:hover,.param-list li:hover{transform:none;}
  .cover-card:hover .cover-media img{transform:none;}
}