/* roulang page: index */
:root{
  --c-primary:#1E6F5C;
  --c-primary-hover:#175A4A;
  --c-primary-active:#11463A;
  --c-primary-soft:#E7F1EE;
  --c-accent:#DE7A45;
  --c-accent-soft:rgba(222,122,69,.08);
  --c-ink:#0E1F1B;
  --c-bg:#F7F6F2;
  --c-card:#FFFFFF;
  --c-sub:#EFF2EF;
  --c-text:#12181A;
  --c-text-2:#5B6663;
  --c-text-3:#8B9490;
  --c-line:#E2E4DF;
  --c-success:#2E8B6B;
  --c-warn:#C2703A;
  --c-error:#B4483C;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,28,.04), 0 8px 24px -12px rgba(16,32,28,.10);
  --sh-2:0 2px 4px rgba(16,32,28,.06), 0 16px 32px -16px rgba(16,32,28,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:220ms;
  --gutter:32px;
  --font:"Inter",system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font);
  font-size:17px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--c-primary-hover)}
h1,h2,h3,h4{color:var(--c-text);margin:0 0 16px;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(34px,4.6vw,60px);line-height:1.12;letter-spacing:-.02em;font-weight:700}
h2{font-size:clamp(26px,3vw,38px);line-height:1.2}
h3{font-size:21px;line-height:1.4;font-weight:600}
p{margin:0 0 16px;color:var(--c-text-2)}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea{font-family:inherit;font-size:16px}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 var(--gutter);width:100%}
.row{display:flex;flex-wrap:wrap}
.section{padding:104px 0}
.section--tight{padding:80px 0}
.section--sub{background:var(--c-sub)}
.section--paper{background:#fff}
.section-head{max-width:760px;margin-bottom:48px}
.section-head p{margin:0;font-size:16px;color:var(--c-text-2)}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--c-primary);background:var(--c-primary-soft);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:18px;font-weight:600;
}
/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px)}
.btn-primary:active{background:var(--c-primary-active);transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-hover);transform:translateY(-1px)}
.btn-ghost:active{color:var(--c-primary-active)}
.btn-light{background:#fff;color:var(--c-ink)}
.btn-light:hover{background:#EFEFEA;color:var(--c-ink)}
.btn-sm{height:40px;padding:0 18px;font-size:15px;border-radius:var(--r-btn)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn-outline-light:hover{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.7)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary);font-size:15px}
.text-link .arw{transition:transform var(--dur) var(--ease)}
.text-link:hover .arw{transform:translateX(4px)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.06em;font-weight:600;
  background:var(--c-primary-soft);color:var(--c-primary);
}
.badge-accent{background:var(--c-accent-soft);color:var(--c-warn)}
/* header */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(247,246,242,.86);
  border-bottom:1px solid transparent;transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),backdrop-filter var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,246,242,.9);border-bottom:1px solid var(--c-line);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);flex-shrink:0}
.brand:hover{color:var(--c-text)}
.brand-mark{width:30px;height:30px;color:var(--c-primary);flex-shrink:0}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.main-nav a{
  position:relative;display:inline-flex;align-items:center;height:64px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--c-text-2);white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;border-radius:2px;
  background:transparent;transition:background var(--dur) var(--ease);
}
.main-nav a:hover{color:var(--c-text)}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.main-nav a.is-active::after{background:var(--c-primary)}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.cmd-search{
  display:flex;align-items:center;gap:8px;height:40px;width:250px;padding:0 12px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-btn);
  transition:width var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.cmd-search:focus-within{width:320px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(30,111,92,.10)}
.cmd-search svg{width:16px;height:16px;color:var(--c-text-3);flex-shrink:0}
.cmd-search input{
  flex:1;min-width:0;border:0;background:transparent;height:100%;font-size:15px;color:var(--c-text);outline:none;
}
.cmd-search input::placeholder{color:var(--c-text-3)}
.cmd-search kbd{
  font-family:var(--font);font-size:11px;color:var(--c-text-3);border:1px solid var(--c-line);
  border-radius:6px;padding:2px 6px;background:var(--c-sub);white-space:nowrap;
}
.link-quiet{font-size:15px;color:var(--c-text-2);font-weight:500}
.link-quiet:hover{color:var(--c-primary)}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--c-line);border-radius:var(--r-btn);cursor:pointer;color:var(--c-text);
}
/* drawer */
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--c-bg);display:none;
  flex-direction:column;padding:20px;
}
.drawer.is-open{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer nav{display:flex;flex-direction:column;gap:4px}
.drawer nav a{
  font-size:20px;font-weight:600;color:var(--c-text);padding:16px 4px;border-bottom:1px solid var(--c-line);
}
.drawer nav a.is-active{color:var(--c-primary)}
.drawer-foot{margin-top:auto;padding-top:20px}
.drawer-foot .btn{width:100%}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-btn);
  color:var(--c-text);cursor:pointer;font-size:20px;line-height:1;
}
/* hero */
.hero{padding:72px 0 96px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero h1{margin-bottom:20px}
.hero h1 .hl{color:var(--c-accent)}
.hero-sub{font-size:18px;color:var(--c-text-2);max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.trust{display:flex;flex-wrap:wrap;gap:32px;padding-top:26px;border-top:1px solid var(--c-line)}
.trust-item{min-width:120px}
.trust-num{display:block;font-size:24px;font-weight:700;color:var(--c-primary);letter-spacing:-.02em}
.trust-label{font-size:14px;color:var(--c-text-3)}
.hero-visual{
  position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:5/4;
  background:var(--c-primary-soft);box-shadow:var(--sh-1);
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(30,111,92,.10),rgba(14,31,27,.30));
}
.hero-visual .visual-note{
  position:absolute;left:20px;bottom:20px;z-index:2;color:#fff;font-size:14px;
  background:rgba(14,31,27,.42);border:1px solid rgba(255,255,255,.24);
  padding:8px 14px;border-radius:var(--r-pill);backdrop-filter:blur(4px);
}
/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative}
.step{
  position:relative;padding:32px 28px 28px;background:#fff;border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step+.step{margin-left:24px}
.step+.step::before{
  content:"";position:absolute;left:-24px;top:50%;width:24px;height:0;
  border-top:1px dashed var(--c-line);
}
.step-num{
  display:block;font-size:52px;font-weight:700;line-height:1;
  color:var(--c-primary-soft);letter-spacing:-.03em;margin-bottom:18px;
}
.step h3{margin-bottom:10px;font-size:20px}
.step p{margin:0;font-size:15px;line-height:1.75}
/* cases */
.case-main{
  display:grid;grid-template-columns:8fr 4fr;gap:0;align-items:stretch;
  background:#fff;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  margin-bottom:24px;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.case-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.case-main .media{overflow:hidden;aspect-ratio:16/10}
.case-main .media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.case-main:hover .media img{transform:scale(1.03)}
.case-main .body{padding:36px}
.case-main h3{font-size:24px;margin:14px 0 12px}
.case-side{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.case-card{
  background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);
  border:1px solid var(--c-line);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.case-card h3{font-size:19px;margin:14px 0 10px}
.case-card p{font-size:15px;margin-bottom:16px}
.metric{
  font-size:26px;font-weight:700;color:var(--c-primary);letter-spacing:-.02em;
}
.metric small{font-size:13px;font-weight:500;color:var(--c-text-3);margin-left:6px}
/* faq */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-grid h2{margin-bottom:14px}
.faq-grid .faq-intro{font-size:16px;color:var(--c-text-2);margin:0}
.accordion{background:transparent}
.accordion .accordion-item{border:0;border-top:1px solid var(--c-line)}
.accordion .accordion-item:last-child{border-bottom:1px solid var(--c-line)}
.accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--c-text);
  border:0;background:transparent;line-height:1.55;
}
.accordion .accordion-title::before{display:none}
.accordion .accordion-title::after{
  content:"+";font-size:22px;font-weight:400;color:var(--c-primary);
  transition:transform var(--dur) var(--ease);line-height:1;flex-shrink:0;
}
.accordion .accordion-item.is-active .accordion-title::after{transform:rotate(45deg)}
.accordion .accordion-content{padding:0 0 22px;border:0;background:transparent}
.accordion .accordion-content p{font-size:15px;line-height:1.75;color:var(--c-text-2);margin:0}
/* news */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.news-head h2{margin:0}
.news-lead{
  display:grid;grid-template-columns:5fr 7fr;gap:0;background:#fff;border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);margin-bottom:8px;
}
.news-lead .media{overflow:hidden;aspect-ratio:16/10}
.news-lead .media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.news-lead:hover .media img{transform:scale(1.03)}
.news-lead .body{padding:32px}
.news-lead h3{font-size:22px;margin:14px 0 10px;line-height:1.45}
.news-lead h3 a{color:var(--c-text)}
.news-lead h3 a:hover{color:var(--c-primary)}
.news-lead p{font-size:15px;margin-bottom:20px}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-text-3)}
.news-list{background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-1);padding:8px 28px}
.news-row{
  display:grid;grid-template-columns:130px 1fr 28px;gap:20px;align-items:center;
  padding:22px 0;border-bottom:1px solid var(--c-line);transition:background var(--dur) var(--ease);
}
.news-row:last-child{border-bottom:0}
.news-row:hover{background:#F1F4F1}
.news-row .side{font-size:13px;color:var(--c-text-3);line-height:1.6}
.news-row .side b{display:block;color:var(--c-primary);font-weight:600;font-size:13px}
.news-row h3{font-size:17px;font-weight:600;margin:0 0 6px;line-height:1.5}
.news-row h3 a{color:var(--c-text)}
.news-row h3 a:hover{color:var(--c-primary)}
.news-row .excerpt{font-size:14px;color:var(--c-text-3);margin:0;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-row .arrow{color:var(--c-primary);transition:transform var(--dur) var(--ease)}
.news-row:hover .arrow{transform:translateX(4px)}
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;text-align:center;background:#fff;border-radius:var(--r-card);
  border:1px dashed var(--c-line);padding:40px 24px;
}
.empty-state svg{width:44px;height:44px;color:var(--c-primary)}
.empty-state p{margin:0;font-size:15px;color:var(--c-text-2)}
.empty-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
/* cta */
.cta{background:var(--c-ink);color:#fff;position:relative;box-shadow:inset 0 1px 0 rgba(30,111,92,.85);padding:104px 0}
.cta-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.cta h2{color:#fff;margin-bottom:14px}
.cta p{color:rgba(255,255,255,.72);margin:0}
.cta-form{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:28px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;letter-spacing:.04em;color:rgba(255,255,255,.72);margin-bottom:8px}
.field input{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.94);color:var(--c-text);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.field input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(30,111,92,.2)}
.field .err{display:none;font-size:13px;color:#F0A093;margin-top:6px}
.field.has-error input{border-color:var(--c-error)}
.field.has-error .err{display:block}
.cta-form .btn{width:100%;margin-top:6px}
.cta-note{font-size:13px;color:rgba(255,255,255,.5);margin:14px 0 0}
/* footer */
.site-footer{background:var(--c-sub);border-top:1px solid var(--c-line);padding:72px 0 32px}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{color:var(--c-primary)}
.footer-brand span{font-size:17px;font-weight:700;color:var(--c-text)}
.site-footer p{font-size:14px;color:var(--c-text-2);margin:0 0 10px;line-height:1.75}
.footer-title{font-size:13px;letter-spacing:.08em;color:var(--c-text-3);text-transform:uppercase;margin:0 0 16px;font-weight:600}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:15px;color:var(--c-text-2)}
.footer-links a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);
}
/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
.d1{transition-delay:70ms}.d2{transition-delay:140ms}.d3{transition-delay:210ms}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition-duration:1ms!important}
}
/* responsive */
@media (max-width:1199px){
  :root{--gutter:32px}
  .cmd-search{width:200px}
  .cmd-search:focus-within{width:240px}
  .main-nav a{padding:0 10px;font-size:14px}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .hero{padding:48px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:-1;aspect-ratio:16/10}
  .main-nav,.link-quiet{display:none}
  .nav-toggle{display:inline-flex}
  .cmd-search{display:none}
  .steps{grid-template-columns:1fr}
  .step+.step{margin-left:0;margin-top:20px}
  .step+.step::before{left:32px;top:-20px;width:0;height:20px;border-top:0;border-left:1px dashed var(--c-line)}
  .case-main{grid-template-columns:1fr}
  .case-side{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .news-lead{grid-template-columns:1fr}
  .cta{padding:72px 0}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575px){
  :root{--gutter:20px}
  body{font-size:16px;line-height:1.75}
  .section{padding:56px 0}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .trust{gap:20px}
  .case-main .body{padding:24px}
  .news-list{padding:4px 18px}
  .news-row{grid-template-columns:1fr 24px;gap:12px}
  .news-row .side{display:none}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --primary:#1E6F5C;
  --primary-hover:#175A4A;
  --primary-active:#11463A;
  --primary-soft:#E7F1EE;
  --accent:#DE7A45;
  --accent-soft:rgba(222,122,69,.08);
  --ink:#0E1F1B;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --surface-2:#EFF2EF;
  --text:#12181A;
  --text-2:#5B6663;
  --text-3:#8B9490;
  --line:#E2E4DF;
  --success:#2E8B6B;
  --warn:#C2703A;
  --danger:#B4483C;
  --radius-btn:10px;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,32,28,.04), 0 8px 24px -12px rgba(16,32,28,.10);
  --shadow-2:0 2px 4px rgba(16,32,28,.06), 0 16px 32px -16px rgba(16,32,28,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:220ms var(--ease);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--primary-hover);}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,button{font-size:16px;}
::selection{background:var(--primary-soft);color:var(--primary-active);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 40px;
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:16px;font-weight:600;line-height:1;
  cursor:pointer;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{background:var(--primary-active);transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-hover);transform:translateY(-1px);}
.btn-ghost:active{background:#DCEAE5;}
.btn-sm{height:40px;padding:0 18px;font-size:15px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:600;font-size:15px;
}
.btn-text .arrow{transition:transform var(--t);}
.btn-text:hover .arrow{transform:translateX(4px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;
  border-radius:var(--radius-pill);
  background:rgba(30,111,92,.12);
  color:var(--primary);
  font-size:12px;font-weight:600;letter-spacing:.08em;
}
.badge-accent{background:rgba(222,122,69,.12);color:#B85F2E;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.86);
  border-bottom:1px solid transparent;
  transition:background-color var(--t),border-color var(--t),backdrop-filter var(--t);
}
.site-header.is-scrolled{
  background:rgba(247,246,242,.92);
  border-bottom-color:var(--line);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:64px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--text);font-weight:700;flex-shrink:0;
}
.brand:hover{color:var(--primary);}
.brand-mark{width:26px;height:26px;color:var(--primary);flex-shrink:0;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em;}
.main-nav{
  display:flex;align-items:center;gap:4px;
  margin-left:8px;
}
.main-nav a{
  position:relative;
  display:inline-flex;align-items:center;
  height:64px;padding:0 12px;
  color:var(--text-2);font-size:15px;font-weight:500;
  transition:color var(--t);
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:14px;
  height:2px;border-radius:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left center;
  transition:transform var(--t);
}
.main-nav a:hover{color:var(--primary);}
.main-nav a.is-active{color:var(--primary);font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}
.header-actions{
  display:flex;align-items:center;gap:16px;margin-left:auto;
}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  width:240px;height:40px;padding:0 10px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  transition:width var(--t),border-color var(--t),box-shadow var(--t);
}
.cmd-search svg{width:18px;height:18px;color:var(--text-3);flex-shrink:0;}
.cmd-search input{
  flex:1;min-width:0;border:0;outline:0;background:transparent;
  color:var(--text);font-size:15px;
}
.cmd-search input::placeholder{color:var(--text-3);}
.cmd-search kbd{
  flex-shrink:0;padding:2px 6px;
  border:1px solid var(--line);border-radius:6px;
  background:var(--surface-2);color:var(--text-3);
  font-family:inherit;font-size:12px;line-height:1.4;
}
.cmd-search:focus-within{
  width:320px;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(30,111,92,.10);
}
.link-quiet{color:var(--text-2);font-size:15px;}
.link-quiet:hover{color:var(--primary);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;margin-right:-10px;
  background:transparent;border:0;border-radius:var(--radius-btn);
  color:var(--text);cursor:pointer;
}
.nav-toggle:hover{background:var(--surface-2);}

/* ============ 页面通用板块 ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head .badge{margin-bottom:16px;}
h2{font-size:38px;line-height:1.2;letter-spacing:-.015em;}
h3{font-size:23px;line-height:1.35;font-weight:600;}
.lead{font-size:17px;line-height:1.8;color:var(--text-2);}

/* ============ 面包屑 ============ */
.breadcrumb{
  padding:20px 0 0;
  font-size:13px;color:var(--text-3);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px;}
.breadcrumb li{display:flex;align-items:center;gap:6px;}
.breadcrumb li+li::before{content:"/";color:var(--line);}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .current{color:var(--text-2);}

/* ============ Hero ============ */
.hero{padding:56px 0 88px;}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:56px;align-items:center;
}
.hero h1{
  font-size:56px;line-height:1.12;letter-spacing:-.02em;
  margin-bottom:22px;
}
.hero h1 .hl{
  color:var(--accent);
  position:relative;
}
.hero-sub{
  max-width:560px;
  font-size:18px;line-height:1.8;color:var(--text-2);
  margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.trust{
  display:flex;flex-wrap:wrap;gap:12px 32px;
  padding-top:24px;border-top:1px solid var(--line);
}
.trust-item{display:flex;flex-direction:column;gap:2px;}
.trust-item strong{
  font-size:22px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.trust-item span{font-size:13px;color:var(--text-3);letter-spacing:.02em;}

.hero-visual{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  aspect-ratio:4/3;
  background:var(--primary-soft);
  box-shadow:var(--shadow-1);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:rgba(30,111,92,.10);
}
.hero-visual .visual-tag{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.94);color:var(--primary);
  font-size:13px;font-weight:600;letter-spacing:.04em;
  box-shadow:var(--shadow-1);
}

/* ============ 两栏主体 ============ */
.split{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:56px;align-items:start;
}
.copy-block p+p{margin-top:18px;}
.copy-block p{color:var(--text-2);}
.copy-block h2{margin-bottom:24px;}

.number-list{margin-top:44px;}
.number-list li{
  display:grid;
  grid-template-columns:64px minmax(0,1fr);
  gap:20px;
  padding:26px 0;
  border-top:1px solid var(--line);
}
.number-list li:last-child{border-bottom:1px solid var(--line);}
.number-list .idx{
  font-size:40px;font-weight:700;line-height:1;
  color:var(--primary-soft);
  -webkit-text-stroke:1px rgba(30,111,92,.35);
  font-variant-numeric:tabular-nums;
  transition:color var(--t);
}
.number-list li:hover .idx{color:var(--primary);-webkit-text-stroke:1px transparent;}
.number-list h3{font-size:19px;margin-bottom:8px;}
.number-list p{font-size:16px;line-height:1.75;color:var(--text-2);}

/* 粘性步骤卡 */
.sticky-card{
  position:sticky;top:96px;
  padding:32px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.sticky-card .badge{margin-bottom:18px;}
.sticky-card h3{font-size:20px;margin-bottom:10px;}
.sticky-card .card-sub{font-size:15px;line-height:1.75;color:var(--text-2);}
.steps{margin:24px 0;display:flex;flex-direction:column;gap:0;}
.steps li{
  display:grid;grid-template-columns:28px minmax(0,1fr);
  gap:14px;padding:14px 0;
  border-bottom:1px dashed var(--line);
}
.steps li:last-child{border-bottom:0;}
.steps .dot{
  width:24px;height:24px;border-radius:50%;
  background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
  margin-top:2px;
}
.steps strong{display:block;font-size:15px;font-weight:600;color:var(--text);}
.steps span{font-size:14px;line-height:1.6;color:var(--text-3);}
.sticky-card .note{
  margin-top:16px;font-size:13px;line-height:1.6;color:var(--text-3);
}

/* ============ 横排宽卡 ============ */
.wide-card{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:0;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t);
}
.wide-card+.wide-card{margin-top:24px;}
.wide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.wide-card .wide-media{
  overflow:hidden;background:var(--primary-soft);
  aspect-ratio:16/11;
}
.wide-card .wide-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform var(--t);
}
.wide-card:hover .wide-media img{transform:scale(1.03);}
.wide-body{padding:36px 40px;display:flex;flex-direction:column;justify-content:center;gap:14px;}
.wide-body h3{font-size:22px;}
.wide-body p{font-size:16px;line-height:1.78;color:var(--text-2);}
.wide-meta{
  display:flex;flex-wrap:wrap;gap:10px 28px;
  margin-top:6px;padding-top:16px;border-top:1px solid var(--line);
}
.wide-meta div{display:flex;flex-direction:column;gap:2px;}
.wide-meta strong{
  font-size:18px;color:var(--primary);font-weight:700;
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.wide-meta span{font-size:13px;color:var(--text-3);}

/* ============ 提示条 ============ */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  margin-top:40px;padding:20px 24px;
  background:var(--accent-soft);
  border-left:3px solid var(--accent);
  border-radius:10px;
}
.notice svg{width:20px;height:20px;color:var(--accent);flex-shrink:0;margin-top:4px;}
.notice p{font-size:15px;line-height:1.75;color:var(--text-2);}

/* ============ 核对要点 ============ */
.check-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.check-card{
  padding:28px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D3DAD5;}
.check-card .icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.check-card .icon svg{width:22px;height:22px;}
.check-card h3{font-size:19px;margin-bottom:10px;}
.check-card p{font-size:15px;line-height:1.75;color:var(--text-2);}

/* ============ CTA 段 ============ */
.cta{
  background:var(--ink);
  border-top:1px solid rgba(30,111,92,.5);
  padding:96px 0;
  color:#fff;
}
.cta-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:56px;align-items:center;
}
.cta h2{color:#fff;margin-bottom:16px;}
.cta .cta-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.72);max-width:520px;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:24px;}
.cta-points span{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:rgba(255,255,255,.66);
}
.cta-points svg{width:16px;height:16px;color:var(--accent);}
.cta-form{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-card);
  padding:28px;
}
.field{margin-bottom:16px;}
.field label{
  display:block;font-size:14px;font-weight:600;
  color:rgba(255,255,255,.82);margin-bottom:8px;
}
.field input{
  width:100%;height:48px;padding:0 14px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-btn);
  color:#fff;font-size:16px;
  transition:border-color var(--t),background-color var(--t);
}
.field input::placeholder{color:rgba(255,255,255,.38);}
.field input:focus{
  outline:0;border-color:var(--accent);
  background:rgba(255,255,255,.10);
}
.field .err{display:none;font-size:13px;color:#E9A08C;margin-top:6px;}
.field.has-error input{border-color:#B4483C;}
.field.has-error .err{display:block;}
.cta-form .btn{width:100%;margin-top:8px;background:var(--accent);color:#fff;}
.cta-form .btn:hover{background:#C96A38;color:#fff;}
.cta-form .form-note{
  margin-top:14px;font-size:13px;line-height:1.6;color:rgba(255,255,255,.48);
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--surface-2);
  border-top:1px solid var(--line);
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));
  gap:40px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  margin-bottom:16px;
  color:var(--text);font-weight:700;font-size:16px;
}
.footer-brand .brand-mark{width:24px;height:24px;color:var(--primary);}
.site-footer p{font-size:14px;line-height:1.7;color:var(--text-2);}
.site-footer p+p{margin-top:8px;}
.footer-title{
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--text);margin-bottom:16px;
}
.footer-links li+li{margin-top:10px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  margin-top:48px;padding-top:20px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(10px);}
.reveal.is-in{opacity:1;transform:none;transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
.hero h1,.hero-sub,.hero-actions,.trust{opacity:0;transform:translateY(10px);}
.hero h1{animation:rise 520ms var(--ease) 60ms forwards;}
.hero-sub{animation:rise 520ms var(--ease) 130ms forwards;}
.hero-actions{animation:rise 520ms var(--ease) 200ms forwards;}
.trust{animation:rise 520ms var(--ease) 270ms forwards;}
@keyframes rise{to{opacity:1;transform:none;}}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 32px;}
  .hero h1{font-size:48px;}
  .cmd-search{width:200px;}
  .cmd-search:focus-within{width:260px;}
}
@media (max-width:991px){
  .main-nav{
    position:fixed;inset:0;z-index:80;
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    padding:88px 32px 120px;
    background:var(--bg);
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity var(--t),transform var(--t);
    overflow-y:auto;
  }
  body.nav-open .main-nav{opacity:1;transform:none;pointer-events:auto;}
  .main-nav a{
    height:auto;padding:18px 0;
    font-size:20px;font-weight:600;color:var(--text);
    border-bottom:1px solid var(--line);
  }
  .main-nav a::after{display:none;}
  .main-nav a.is-active{color:var(--primary);}
  .cmd-search{display:none;}
  .link-quiet{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:40px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{order:2;aspect-ratio:16/10;}
  .hero h1{font-size:38px;}
  .hero-sub{font-size:17px;margin-bottom:26px;}
  .split{grid-template-columns:1fr;gap:36px;}
  .sticky-card{position:static;}
  .section{padding:72px 0;}
  h2{font-size:30px;}
  .wide-card{grid-template-columns:1fr;}
  .wide-card .wide-media{aspect-ratio:16/9;}
  .wide-body{padding:28px 28px 32px;}
  .check-grid{grid-template-columns:1fr;}
  .cta{padding:72px 0;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:575px){
  .container{padding:0 20px;}
  body{font-size:16px;line-height:1.75;}
  .brand-name{font-size:15px;}
  .header-inner{height:56px;gap:12px;}
  .hero h1{font-size:32px;line-height:1.15;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{flex:1 1 100%;}
  h2{font-size:26px;}
  h3{font-size:19px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .number-list li{grid-template-columns:48px minmax(0,1fr);gap:14px;padding:22px 0;}
  .number-list .idx{font-size:32px;}
  .wide-body{padding:24px 20px 28px;}
  .sticky-card{padding:24px 20px;}
  .cta{padding:56px 0;}
  .cta-form{padding:22px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .breadcrumb{font-size:12px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  .hero h1,.hero-sub,.hero-actions,.trust{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --c-primary:#1E6F5C;
  --c-primary-hover:#175A4A;
  --c-primary-active:#11463A;
  --c-primary-soft:#E7F1EE;
  --c-accent:#DE7A45;
  --c-accent-soft:rgba(222,122,69,.10);
  --c-ink:#0E1F1B;
  --c-bg:#F7F6F2;
  --c-card:#FFFFFF;
  --c-block:#EFF2EF;
  --c-text:#12181A;
  --c-text-2:#5B6663;
  --c-text-3:#8B9490;
  --c-line:#E2E4DF;
  --c-success:#2E8B6B;
  --c-warn:#C2703A;
  --c-error:#B4483C;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,28,.04), 0 8px 24px -12px rgba(16,32,28,.10);
  --sh-2:0 2px 4px rgba(16,32,28,.06), 0 16px 32px -16px rgba(16,32,28,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:200ms;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;line-height:1.8;color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  font-variant-numeric:tabular-nums;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:0}
::selection{background:rgba(30,111,92,.16)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}

/* ---------- 通用按钮 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),
             border-color var(--t) var(--ease),transform var(--t) var(--ease),
             box-shadow var(--t) var(--ease);
  white-space:nowrap;cursor:pointer;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{background:var(--c-primary-active);transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);transform:translateY(-1px)}
.btn-ghost:active{background:#D8E9E4;transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--c-primary);outline-offset:2px;border-radius:8px;
}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;transition:color var(--t) var(--ease)}
.text-link .arrow{display:inline-block;transition:transform var(--t) var(--ease)}
.text-link:hover{color:var(--c-primary-hover)}
.text-link:hover .arrow{transform:translateX(4px)}
.link-quiet{font-size:14px;color:var(--c-text-2);transition:color var(--t) var(--ease)}
.link-quiet:hover{color:var(--c-primary)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--r-pill);background:rgba(30,111,92,.10);color:var(--c-primary);
  font-size:12px;letter-spacing:.08em;font-weight:600;white-space:nowrap;
}
.badge-accent{background:var(--c-accent-soft);color:#A9522A}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--c-block);border:1px solid var(--c-line);
  color:var(--c-text-2);font-size:13px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:transparent;border-bottom:1px solid transparent;
  transition:background var(--t) var(--ease),border-color var(--t) var(--ease),
             box-shadow var(--t) var(--ease);
}
.site-header.is-stuck{
  background:rgba(247,246,242,.86);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  border-bottom-color:var(--c-line);
  box-shadow:0 1px 0 rgba(16,32,28,.02);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:var(--c-text)}
.brand-mark{width:28px;height:28px;flex-shrink:0;color:var(--c-primary)}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px}
.main-nav a{
  position:relative;display:inline-block;padding:10px 12px;border-radius:8px;
  font-size:15px;color:var(--c-text-2);white-space:nowrap;
  transition:color var(--t) var(--ease),background var(--t) var(--ease);
}
.main-nav a:hover{color:var(--c-text);background:rgba(30,111,92,.07)}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.cmd-search{
  display:flex;align-items:center;gap:8px;width:230px;height:40px;padding:0 12px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-btn);
  transition:width var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.cmd-search:focus-within{width:320px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(30,111,92,.10)}
.cmd-search svg{width:18px;height:18px;flex-shrink:0;color:var(--c-text-3)}
.cmd-search input{flex:1;min-width:0;border:0;outline:none;background:transparent;font-size:15px;color:var(--c-text)}
.cmd-search input::placeholder{color:var(--c-text-3)}
.cmd-search kbd{
  font-family:inherit;font-size:11px;line-height:1;color:var(--c-text-3);
  padding:4px 5px;border:1px solid var(--c-line);border-radius:6px;background:var(--c-block);
}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:var(--r-btn);color:var(--c-text);border:1px solid var(--c-line);background:#fff;
  transition:background var(--t) var(--ease),color var(--t) var(--ease);
}
.nav-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:28px 0 0;font-size:13px;color:var(--c-text-3);
}
.breadcrumb a{color:var(--c-text-3);transition:color var(--t) var(--ease)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C9CDC6}
.breadcrumb .current{color:var(--c-text-2);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章主体 ---------- */
.article-shell{padding:26px 0 96px}
.article-row{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start}
.article-head{padding-bottom:24px;border-bottom:1px solid var(--c-line);margin-bottom:34px}
.article-head h1{
  font-size:clamp(28px,3.2vw,40px);font-weight:700;line-height:1.24;
  letter-spacing:-.02em;color:var(--c-text);margin:14px 0 16px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3)}
.article-meta .meta-dot{width:3px;height:3px;border-radius:50%;background:#C9CDC6}
.article-meta .meta-strong{color:var(--c-text-2)}

.article-body{max-width:760px;font-size:17px;line-height:1.85;color:var(--c-text-2)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body strong{color:var(--c-text);font-weight:600}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(30,111,92,.32);transition:border-color var(--t) var(--ease)}
.article-body a:hover{border-bottom-color:var(--c-primary)}
.article-body h2{
  position:relative;font-size:clamp(22px,2.2vw,28px);font-weight:700;line-height:1.35;
  color:var(--c-text);letter-spacing:-.01em;margin:48px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.24em;width:3px;
  border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:21px;font-weight:600;color:var(--c-text);margin:32px 0 12px;line-height:1.4}
.article-body h4{font-size:18px;font-weight:600;color:var(--c-text);margin:24px 0 10px;line-height:1.5}
.article-body ul,.article-body ol{margin:0 0 1.2em}
.article-body ul{list-style:none;padding-left:0}
.article-body ul > li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;
  border-radius:2px;background:var(--c-primary);
}
.article-body ol{list-style:decimal;padding-left:1.5em}
.article-body ol > li{margin-bottom:10px;padding-left:4px}
.article-body ol > li::marker{color:var(--c-primary);font-weight:600}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;border-left:3px solid var(--c-primary);
  background:var(--c-primary-soft);border-radius:0 12px 12px 0;color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px 0}
.article-body figure{margin:24px 0}
.article-body figure img{margin:0 0 10px}
.article-body figcaption{font-size:13px;line-height:1.6;color:var(--c-text-3);text-align:center}
.article-body table{
  display:block;width:100%;max-width:100%;overflow-x:auto;
  border-collapse:collapse;font-size:15px;margin:24px 0;border-radius:12px;
}
.article-body th,.article-body td{
  border:1px solid var(--c-line);padding:10px 14px;text-align:left;white-space:nowrap;
}
.article-body thead th{background:var(--c-block);color:var(--c-text);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:40px 0}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;background:var(--c-block);border-radius:6px;padding:2px 6px;color:var(--c-text);
}
.article-body pre{
  overflow-x:auto;background:var(--c-block);border:1px solid var(--c-line);
  border-radius:12px;padding:16px 18px;margin:24px 0;
}
.article-body pre code{background:none;padding:0}

.article-empty{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:48px 32px;text-align:center;box-shadow:var(--sh-1);
}
.article-empty .empty-title{font-size:22px;font-weight:700;color:var(--c-text);margin-bottom:10px}
.article-empty .empty-desc{font-size:15px;color:var(--c-text-2);margin-bottom:22px}

/* ---------- 文末 ---------- */
.article-foot{
  margin-top:52px;padding-top:24px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.related{margin-top:64px}
.section-head-sm{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-head-sm h2{font-size:24px;font-weight:700;letter-spacing:-.01em;color:var(--c-text)}
.section-head-sm p{font-size:14px;color:var(--c-text-3)}
.related-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:20px}
.related-stack{display:flex;flex-direction:column;gap:20px}
.rcard{
  display:block;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(30,111,92,.35)}
.rcard-media{overflow:hidden;aspect-ratio:16/10;background:var(--c-primary-soft)}
.rcard-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms var(--ease)}
.rcard:hover .rcard-media img{transform:scale(1.03)}
.rcard-body{padding:18px}
.rcard-body h3{font-size:18px;font-weight:600;line-height:1.45;color:var(--c-text);margin:10px 0 8px}
.rcard-body p{font-size:14px;line-height:1.7;color:var(--c-text-2)}
.rcard-mini{display:grid;grid-template-columns:110px minmax(0,1fr);align-items:stretch}
.rcard-mini .rcard-media{aspect-ratio:auto;height:100%;min-height:104px}
.rcard-mini .rcard-body{padding:14px 16px}
.rcard-mini .rcard-body h3{font-size:15px;margin:0 0 6px}
.rcard-mini .rcard-body p{font-size:13px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.side-card-title{font-size:14px;font-weight:700;color:var(--c-text);margin-bottom:14px;letter-spacing:.02em}
.side-list{list-style:none;display:flex;flex-direction:column;gap:6px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;color:var(--c-text-2);padding:9px 10px;border-radius:8px;
  transition:background var(--t) var(--ease),color var(--t) var(--ease);
}
.side-list a:hover{background:var(--c-block);color:var(--c-primary)}
.side-list a span:last-child{color:var(--c-text-3);transition:transform var(--t) var(--ease)}
.side-list a:hover span:last-child{transform:translateX(3px);color:var(--c-primary)}
.side-tips{list-style:none;display:flex;flex-direction:column;gap:12px}
.side-tips li{position:relative;padding-left:18px;font-size:14px;line-height:1.7;color:var(--c-text-2)}
.side-tips li::before{
  content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;
  border-radius:2px;background:var(--c-primary);
}
.side-card-cta{background:var(--c-primary-soft);border-color:rgba(30,111,92,.18)}
.side-card-cta p{font-size:15px;line-height:1.7;color:var(--c-text-2);margin-bottom:16px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#A9B6B1;padding:72px 0 28px;margin-top:96px;font-size:14px;line-height:1.75}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:700;margin-bottom:14px}
.footer-brand .brand-mark{width:26px;height:26px;color:#5FBF9E}
.site-footer p{color:#A9B6B1;margin-bottom:10px}
.footer-title{color:#fff;font-weight:600;margin-bottom:14px}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#A9B6B1;transition:color var(--t) var(--ease)}
.footer-links a:hover{color:#fff}
.footer-bottom{
  margin-top:46px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7E8C87;
}

/* ---------- 入场动效 ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .cmd-search{width:200px}
  .cmd-search:focus-within{width:260px}
}
@media (max-width:1120px){
  .main-nav a{padding:10px 9px;font-size:14px}
  .cmd-search{width:170px}
  .cmd-search:focus-within{width:200px}
  .link-quiet{display:none}
}
@media (max-width:991px){
  .container{padding:0 32px}
  .header-inner{min-height:56px;gap:12px}
  .brand-name{font-size:15px}
  .brand-mark{width:24px;height:24px}
  .nav-toggle{display:inline-flex}
  .cmd-search{display:none}
  .header-actions .btn-sm{display:none}
  .main-nav{
    position:fixed;top:56px;left:0;right:0;bottom:0;z-index:99;
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    padding:20px 24px 32px;background:var(--c-bg);
    transform:translateX(100%);transition:transform 240ms var(--ease);
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav a{
    font-size:19px;font-weight:600;color:var(--c-text);
    padding:18px 4px;border-bottom:1px solid var(--c-line);border-radius:0;
  }
  .main-nav a:hover{background:transparent;color:var(--c-primary)}
  .main-nav a.is-active::after{display:none}
  .article-row{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-side{position:static;top:auto}
  .article-body{max-width:none}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .site-footer{margin-top:72px;padding:56px 0 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575px){
  body{font-size:16px;line-height:1.75}
  .container{padding:0 20px}
  .article-head h1{font-size:28px}
  .article-body{font-size:16px;line-height:1.78}
  .article-body h2{font-size:23px;margin:40px 0 14px}
  .article-body h3{font-size:19px}
  .breadcrumb{padding-top:20px}
  .breadcrumb .current{max-width:180px}
  .article-foot{flex-direction:column;align-items:flex-start}
  .rcard-mini{grid-template-columns:96px minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .related-stack{gap:16px}
  .btn{width:100%}
  .article-foot .btn{width:auto}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .js .reveal{opacity:1 !important;transform:none !important}
}

/* roulang page: category2 */
:root{
  --c-primary:#1E6F5C;
  --c-primary-hover:#175A4A;
  --c-primary-active:#11463A;
  --c-primary-soft:#E7F1EE;
  --c-accent:#DE7A45;
  --c-ink:#0E1F1B;
  --c-bg:#F7F6F2;
  --c-card:#FFFFFF;
  --c-block:#EFF2EF;
  --t-main:#12181A;
  --t-sub:#5B6663;
  --t-weak:#8B9490;
  --c-line:#E2E4DF;
  --c-success:#2E8B6B;
  --c-warn:#C2703A;
  --c-error:#B4483C;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,28,.04), 0 8px 24px -12px rgba(16,32,28,.10);
  --sh-2:0 2px 4px rgba(16,32,28,.06), 0 16px 32px -16px rgba(16,32,28,.16);
  --tr:200ms cubic-bezier(.2,.7,.3,1);
  --gutter:32px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--t-main);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--c-primary-hover)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
.row{max-width:1200px}
.fade-up{opacity:0;transform:translateY(12px)}
.fade-up.is-in{opacity:1;transform:none;transition:opacity 480ms cubic-bezier(.2,.7,.3,1),transform 480ms cubic-bezier(.2,.7,.3,1)}
.tabular{font-variant-numeric:tabular-nums}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--c-bg);
  border-bottom:1px solid transparent;
  transition:background var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.site-header.is-scrolled{
  background:rgba(247,246,242,.92);
  border-bottom-color:var(--c-line);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:64px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t-main);flex-shrink:0}
.brand:hover{color:var(--c-primary)}
.brand-mark{width:30px;height:30px;color:var(--c-primary);flex-shrink:0}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.main-nav a{
  position:relative;
  display:inline-flex;align-items:center;
  height:64px;padding:0 12px;
  font-size:15px;color:var(--t-sub);
  white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:12px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform var(--tr);
}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.main-nav a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.cmd-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:240px;height:40px;padding:0 12px;
  background:var(--c-card);
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  transition:width var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.cmd-search svg{width:17px;height:17px;color:var(--t-weak);flex-shrink:0}
.cmd-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;line-height:1.4;
}
.cmd-search input::placeholder{color:var(--t-weak)}
.cmd-search kbd{
  font-family:inherit;font-size:11px;color:var(--t-weak);
  border:1px solid var(--c-line);border-radius:6px;padding:1px 5px;background:var(--c-block);
}
.cmd-search:focus-within{width:308px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(30,111,92,.10)}
.link-quiet{font-size:14px;color:var(--t-sub);white-space:nowrap}
.link-quiet:hover{color:var(--c-primary)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-btn);
  color:var(--t-main);border:1px solid var(--c-line);background:var(--c-card);
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;
  transition:background var(--tr),color var(--tr),border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{background:var(--c-primary-active);transform:none}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-hover);transform:translateY(-1px)}
.btn-outline:active{color:var(--c-primary-active);transform:none}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-size:15px;font-weight:600;
}
.btn-ghost .arrow{transition:transform var(--tr);display:inline-block}
.btn-ghost:hover .arrow{transform:translateX(4px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(30,111,92,.12);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.08em;
}
.badge-accent{background:rgba(222,122,69,.14);color:var(--c-warn)}

/* ============ 通用板块 ============ */
.section{padding:104px 0}
.section-tight{padding:72px 0}
.section-block{background:var(--c-block)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{
  font-size:38px;font-weight:700;line-height:1.2;letter-spacing:-.01em;
  margin-bottom:14px;
}
.section-head p{color:var(--t-sub);font-size:16px}
.eyebrow{
  display:block;font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:14px;
}
.divider{height:1px;background:var(--c-line);border:0;margin:0}

/* ============ 内页首屏 ============ */
.page-hero{padding:72px 0 88px}
.hero-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
}
.hero-copy h1{
  font-size:46px;font-weight:700;line-height:1.16;letter-spacing:-.02em;
  margin:20px 0 20px;
}
.hero-copy h1 .hl{color:var(--c-primary)}
.hero-sub{color:var(--t-sub);font-size:17px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 34px}
.hero-facts{display:flex;flex-wrap:wrap;gap:32px}
.hero-facts li{display:flex;align-items:baseline;gap:8px;color:var(--t-weak);font-size:14px}
.hero-facts strong{
  font-size:26px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;line-height:1;
}
.hero-visual{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);aspect-ratio:16/12;background:var(--c-primary-soft);
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;background:rgba(30,111,92,.10);
}

/* 内页面包屑 */
.crumb{font-size:13px;color:var(--t-weak);margin-bottom:18px}
.crumb a{color:var(--t-weak)}
.crumb a:hover{color:var(--c-primary)}
.crumb span.sep{margin:0 8px;color:var(--c-line)}
.crumb .current{color:var(--t-main)}

/* ============ 四端矩阵 ============ */
.device-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
}
.device-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--c-card);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:32px 30px 28px;
  box-shadow:var(--sh-1);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.device-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(30,111,92,.28)}
.device-card .ico{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:20px;margin-bottom:22px;
}
.device-card h3{font-size:22px;font-weight:600;line-height:1.35;margin-bottom:10px}
.device-card .desc{color:var(--t-sub);font-size:15px;margin-bottom:18px}
.req-list{border-top:1px dashed var(--c-line);padding-top:16px;margin-bottom:22px}
.req-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--t-weak);line-height:1.7;
}
.req-list li + li{margin-top:8px}
.req-list li i{color:var(--c-primary);font-size:12px;margin-top:6px}
.device-card .btn{margin-top:auto;align-self:flex-start}
.device-tag{
  position:absolute;top:28px;right:28px;
  font-size:12px;letter-spacing:.08em;color:var(--t-weak);
  font-variant-numeric:tabular-nums;
}

/* ============ 全宽说明条 ============ */
.note-bar{
  display:grid;grid-template-columns:64px 1fr auto;gap:26px;align-items:center;
  background:var(--c-block);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:30px 34px;margin-top:32px;
}
.note-bar .note-ico{
  width:56px;height:56px;border-radius:14px;
  background:rgba(30,111,92,.12);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.note-bar h3{font-size:19px;font-weight:600;margin-bottom:8px}
.note-bar p{color:var(--t-sub);font-size:15px}
.note-bar .btn{white-space:nowrap}

/* ============ 安装前核对 ============ */
.check-grid{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
.check-aside{position:sticky;top:104px}
.check-aside h2{font-size:36px;font-weight:700;line-height:1.22;margin-bottom:16px}
.check-aside p{color:var(--t-sub);font-size:16px;margin-bottom:24px}
.check-list{border-top:1px solid var(--c-line)}
.check-item{
  display:grid;grid-template-columns:64px 1fr;gap:24px;
  padding:26px 0;border-bottom:1px solid var(--c-line);
}
.check-item .num{
  font-size:30px;font-weight:700;color:rgba(30,111,92,.32);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.check-item h3{font-size:20px;font-weight:600;margin-bottom:8px}
.check-item p{color:var(--t-sub);font-size:15px;margin:0}
.check-item .tip{
  display:inline-flex;align-items:center;gap:6px;margin-top:10px;
  font-size:13px;color:var(--c-warn);
}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:26px 26px 24px;
  transition:border-color var(--tr),box-shadow var(--tr),transform var(--tr);
}
.faq-item:hover{border-color:rgba(30,111,92,.28);box-shadow:var(--sh-1);transform:translateY(-3px)}
.faq-item h3{
  display:flex;gap:10px;align-items:flex-start;
  font-size:17px;font-weight:600;line-height:1.6;margin-bottom:10px;
}
.faq-item h3 i{color:var(--c-primary);font-size:15px;margin-top:5px}
.faq-item p{color:var(--t-sub);font-size:15px;line-height:1.75;margin:0}

/* ============ CTA ============ */
.cta-panel{
  background:var(--c-primary-soft);
  border:1px solid var(--c-line);
  border-top:1px solid var(--c-primary);
  border-radius:var(--r-lg);
  padding:56px;
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
}
.cta-panel h2{font-size:34px;font-weight:700;line-height:1.24;margin-bottom:14px}
.cta-panel .lead{color:var(--t-sub);font-size:16px;max-width:520px}
.cta-form{display:flex;flex-direction:column;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;color:var(--t-sub);letter-spacing:.02em}
.field input,.field select{
  height:48px;padding:0 14px;font-size:16px;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-btn);
  outline:none;transition:border-color var(--tr),box-shadow var(--tr);
}
.field input:focus,.field select:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(30,111,92,.10)}
.cta-form .btn{width:100%}
.form-note{font-size:13px;color:var(--t-weak);line-height:1.6}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-ink);color:rgba(255,255,255,.72);
  padding:72px 0 32px;margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;margin-bottom:16px}
.footer-brand .brand-mark{color:#fff;width:26px;height:26px}
.site-footer p{font-size:14px;line-height:1.8;margin-bottom:8px}
.footer-title{color:#fff;font-weight:600;font-size:15px;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px}
.footer-links a:hover{color:#fff}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:24px;font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 移动端 ============ */
@media (max-width:1199px){
  .container{padding:0 32px}
  .hero-copy h1{font-size:40px}
  .cmd-search{width:200px}
  .cmd-search:focus-within{width:240px}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:2}
  .check-grid{grid-template-columns:1fr;gap:36px}
  .check-aside{position:static}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .note-bar{grid-template-columns:56px 1fr;gap:20px}
  .note-bar .btn{grid-column:1 / -1;justify-self:start;margin-top:6px}
}
@media (max-width:991px){
  .main-nav{
    position:fixed;top:56px;left:0;right:0;bottom:0;
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    background:var(--c-bg);padding:24px 20px 120px;margin:0;
    transform:translateX(100%);visibility:hidden;
    transition:transform 260ms cubic-bezier(.2,.7,.3,1),visibility 260ms;
    overflow-y:auto;z-index:80;
  }
  body.nav-open .main-nav{transform:translateX(0);visibility:visible}
  .main-nav a{
    height:auto;padding:18px 4px;font-size:19px;font-weight:600;
    color:var(--t-main);border-bottom:1px solid var(--c-line);
  }
  .main-nav a::after{display:none}
  .main-nav a.is-active{color:var(--c-primary)}
  .cmd-search,.link-quiet{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:56px;gap:14px}
  .drawer-cta{
    position:fixed;left:20px;right:20px;bottom:24px;z-index:95;
    display:none;align-items:center;justify-content:center;
    height:48px;border-radius:var(--r-btn);background:var(--c-primary);color:#fff;
    font-weight:600;box-shadow:var(--sh-2);
  }
  body.nav-open .drawer-cta{display:flex}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.78}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-head h2{font-size:28px}
  .page-hero{padding:40px 0 56px}
  .hero-copy h1{font-size:32px;line-height:1.22}
  .hero-sub{font-size:16px}
  .hero-facts{gap:20px}
  .hero-facts strong{font-size:22px}
  .device-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .check-aside h2{font-size:27px}
  .cta-panel h2{font-size:26px}
  .cta-panel{padding:32px 22px}
  .device-card{padding:26px 22px 24px}
  .device-tag{position:static;display:block;margin-bottom:10px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:6px}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
  .device-card .btn{width:100%}
  .note-bar .btn{width:100%}
  .note-bar{padding:24px 20px}
}
@media (max-width:519px){
  .hero-copy h1{font-size:29px}
  .brand-name{font-size:15px}
  .badge{font-size:11px;padding:0 10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .fade-up{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --c-primary:#1E6F5C;
  --c-primary-hover:#175A4A;
  --c-primary-active:#11463A;
  --c-primary-soft:#E7F1EE;
  --c-accent:#DE7A45;
  --c-accent-soft:rgba(222,122,69,.08);
  --c-ink:#0E1F1B;
  --c-bg:#F7F6F2;
  --c-card:#FFFFFF;
  --c-sub:#EFF2EF;
  --c-text:#12181A;
  --c-text-2:#5B6663;
  --c-text-3:#8B9490;
  --c-line:#E2E4DF;
  --c-success:#2E8B6B;
  --c-warn:#C2703A;
  --c-error:#B4483C;

  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:20px;
  --radius-pill:999px;

  --shadow-1:0 1px 2px rgba(16,32,28,.04), 0 8px 24px -12px rgba(16,32,28,.10);
  --shadow-2:0 2px 4px rgba(16,32,28,.06), 0 16px 32px -16px rgba(16,32,28,.16);

  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-5:48px;
  --sp-6:64px;
  --sp-7:96px;
  --sp-8:112px;

  --ease:cubic-bezier(.2,.7,.3,1);
  --t:200ms var(--ease);

  --font-cn:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--c-primary-hover);}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--c-text);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,246,242,.92);
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t),box-shadow var(--t),backdrop-filter var(--t);
}
.site-header.is-scrolled{
  background:rgba(247,246,242,.86);
  border-bottom-color:var(--c-line);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  box-shadow:0 1px 2px rgba(16,32,28,.04);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:var(--sp-3);
  min-height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--c-text);
  flex:0 0 auto;
}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:28px;height:28px;flex:0 0 auto;color:var(--c-primary);
}
.brand-name{
  font-size:17px;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:var(--sp-2);
  flex:1 1 auto;
  min-width:0;
}
.main-nav a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 12px;
  font-size:15px;
  color:var(--c-text-2);
  border-radius:var(--radius-sm);
  white-space:nowrap;
  transition:color var(--t),background var(--t);
}
.main-nav a:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.main-nav a.is-active{color:var(--c-primary);font-weight:600;}
.main-nav a.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:-2px;
  height:2px;
  background:var(--c-primary);
  border-radius:2px;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.cmd-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  width:240px;
  padding:0 12px;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius-sm);
  transition:width var(--t),border-color var(--t),box-shadow var(--t);
}
.cmd-search:focus-within{
  width:320px;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(30,111,92,.12);
}
.cmd-search svg{width:16px;height:16px;color:var(--c-text-3);flex:0 0 auto;}
.cmd-search input{
  border:0;
  background:transparent;
  outline:none;
  width:100%;
  min-width:0;
  font-size:15px;
}
.cmd-search input::placeholder{color:var(--c-text-3);}
.cmd-search kbd{
  font-family:var(--font-cn);
  font-size:11px;
  color:var(--c-text-3);
  background:var(--c-sub);
  border-radius:6px;
  padding:2px 6px;
  flex:0 0 auto;
}
.link-quiet{
  font-size:15px;
  color:var(--c-text-2);
  white-space:nowrap;
}
.link-quiet:hover{color:var(--c-primary);}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius-sm);
  color:var(--c-text);
  cursor:pointer;
  transition:background var(--t),border-color var(--t);
}
.nav-toggle:hover{background:var(--c-sub);border-color:var(--c-primary);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 26px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{background:var(--c-primary-active);transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-hover);transform:translateY(-1px);}
.btn-ghost:active{background:var(--c-primary-soft);color:var(--c-primary-active);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-weight:600;font-size:15px;
}
.btn-link .arrow{transition:transform var(--t);display:inline-block;}
.btn-link:hover .arrow{transform:translateX(4px);}
.btn-block{width:100%;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  background:rgba(30,111,92,.12);
  color:var(--c-primary);
  font-size:12px;
  letter-spacing:.08em;
  font-weight:600;
}
.badge-accent{
  background:var(--c-accent-soft);
  color:var(--c-accent);
}

/* ============ 首屏 ============ */
.hero{padding:64px 0 88px;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-text-3);
  margin-bottom:28px;
}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb span.sep{color:var(--c-line);}
.crumb .current{color:var(--c-text-2);}

.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,6fr) minmax(0,6fr);
  gap:48px;
  align-items:center;
}
.hero-copy .badge{margin-bottom:20px;}
.hero h1{
  font-size:56px;
  font-weight:700;
  line-height:1.12;
  letter-spacing:-.02em;
  margin-bottom:22px;
}
.hero h1 .accent{color:var(--c-accent);}
.hero-sub{
  font-size:17px;
  line-height:1.8;
  color:var(--c-text-2);
  max-width:34em;
  margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.trust-bar{
  display:flex;
  flex-wrap:wrap;
  gap:12px 36px;
  padding-top:24px;
  border-top:1px solid var(--c-line);
}
.trust-item{font-size:14px;color:var(--c-text-3);line-height:1.6;}
.trust-item b{
  display:block;
  font-size:22px;
  font-weight:700;
  color:var(--c-text);
  font-variant-numeric:tabular-nums;
}

.hero-visual{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  aspect-ratio:4/3;
  background:var(--c-primary-soft);
}
.hero-visual img{
  width:100%;height:100%;object-fit:cover;
}
.hero-visual::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(30,111,92,.10),rgba(30,111,92,.20));
}
.hero-visual .visual-tag{
  position:absolute;
  left:20px;bottom:20px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.92);
  color:var(--c-primary);
  font-size:13px;
  font-weight:600;
}

/* ============ 区块通用 ============ */
.section{padding:96px 0;}
.section-sub{background:var(--c-sub);}
.section-head{max-width:760px;margin-bottom:56px;}
.section-head h2{
  font-size:38px;
  font-weight:700;
  line-height:1.2;
  margin-bottom:16px;
}
.section-head p{
  font-size:17px;
  color:var(--c-text-2);
  line-height:1.8;
}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--c-primary);
  font-weight:600;
  margin-bottom:14px;
}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:0;}
.timeline::before{
  content:"";
  position:absolute;
  left:11px;top:14px;bottom:14px;
  width:1px;
  background:var(--c-line);
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:28px;
  padding-bottom:44px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:relative;
  z-index:2;
  width:23px;height:23px;
  margin-top:6px;
  border-radius:50%;
  background:var(--c-card);
  border:5px solid var(--c-primary);
  box-shadow:0 0 0 4px var(--c-bg);
}
.tl-item.is-last .tl-node{
  border-color:var(--c-accent);
}
.tl-body{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius-md);
  padding:26px 28px;
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.tl-body:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#d6dcd7;}
.tl-step{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  color:var(--c-accent);
  letter-spacing:.08em;
  font-variant-numeric:tabular-nums;
  margin-bottom:8px;
}
.tl-body h3{
  font-size:23px;
  font-weight:600;
  line-height:1.4;
  margin-bottom:10px;
}
.tl-body p{
  font-size:16px;
  color:var(--c-text-2);
  line-height:1.8;
}
.tl-points{
  margin-top:16px;
  display:grid;
  gap:8px;
}
.tl-points li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--c-text-2);
  line-height:1.7;
}
.tl-points li::before{
  content:"";
  position:absolute;
  left:2px;top:11px;
  width:6px;height:6px;
  background:var(--c-primary);
  border-radius:1px;
}

/* ============ 提示条 ============ */
.notice{
  margin:40px 0 0;
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:28px;
}
.notice-inner{
  background:var(--c-accent-soft);
  border-left:3px solid var(--c-accent);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  padding:20px 24px;
  font-size:15px;
  line-height:1.75;
  color:#7a4a2b;
}
.notice-inner strong{color:#5f371f;font-weight:600;}

/* ============ 双栏说明 ============ */
.dual-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:32px;
}
.dual-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius-md);
  padding:32px;
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t);
}
.dual-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.dual-card h3{
  font-size:22px;
  font-weight:600;
  margin-bottom:14px;
}
.dual-card > p{
  font-size:16px;
  color:var(--c-text-2);
  line-height:1.8;
  margin-bottom:18px;
}
.check-list{display:grid;gap:12px;}
.check-list li{
  display:grid;
  grid-template-columns:20px minmax(0,1fr);
  gap:12px;
  font-size:15px;
  line-height:1.75;
  color:var(--c-text-2);
}
.check-list li svg{
  width:20px;height:20px;
  margin-top:4px;
  color:var(--c-primary);
}
.check-list li b{color:var(--c-text);font-weight:600;}

/* ============ 图文块 ============ */
.media-block{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;
  align-items:center;
}
.media-block .media-copy h2{
  font-size:38px;
  font-weight:700;
  line-height:1.2;
  margin-bottom:16px;
}
.media-block .media-copy > p{
  font-size:17px;
  color:var(--c-text-2);
  line-height:1.8;
  margin-bottom:24px;
}
.media-figure{
  border-radius:var(--radius-lg);
  overflow:hidden;
  aspect-ratio:5/4;
  background:var(--c-primary-soft);
  box-shadow:var(--shadow-1);
}
.media-figure img{width:100%;height:100%;object-fit:cover;transition:transform 240ms var(--ease);}
.media-figure:hover img{transform:scale(1.03);}

.feature-list{display:grid;gap:14px;margin-bottom:28px;}
.feature-list li{
  display:grid;
  grid-template-columns:36px minmax(0,1fr);
  gap:14px;
  align-items:start;
}
.feature-list .fl-icon{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--radius-sm);
  background:var(--c-primary-soft);
  color:var(--c-primary);
}
.feature-list .fl-icon svg{width:18px;height:18px;}
.feature-list b{display:block;font-size:16px;font-weight:600;margin-bottom:2px;}
.feature-list span{font-size:15px;color:var(--c-text-2);line-height:1.7;}

/* ============ CTA ============ */
.cta-section{
  padding:88px 0;
}
.cta-panel{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius-lg);
  padding:56px;
  box-shadow:var(--shadow-1);
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;
  align-items:center;
}
.cta-panel h2{
  font-size:36px;
  font-weight:700;
  line-height:1.22;
  margin-bottom:14px;
}
.cta-panel .cta-desc{
  font-size:17px;
  color:var(--c-text-2);
  line-height:1.8;
  max-width:32em;
}
.cta-form{display:grid;gap:16px;}
.field{display:grid;gap:8px;}
.field label{font-size:14px;color:var(--c-text-2);font-weight:600;}
.field input{
  height:48px;
  padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:var(--radius-sm);
  background:var(--c-bg);
  outline:none;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.field input:focus{
  border-color:var(--c-primary);
  background:#fff;
  box-shadow:0 0 0 3px rgba(30,111,92,.12);
}
.field .hint{font-size:13px;color:var(--c-text-3);}
.form-note{font-size:13px;color:var(--c-text-3);line-height:1.6;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-ink);
  color:#c8d3cf;
  padding:72px 0 32px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2.2fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.10);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-brand .brand-mark{color:#7fc3ae;width:26px;height:26px;}
.site-footer p{font-size:14px;line-height:1.8;color:#9fb0aa;margin-bottom:8px;}
.footer-title{
  font-size:13px;
  letter-spacing:.1em;
  color:#7fc3ae;
  font-weight:600;
  margin-bottom:16px;
}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:#c8d3cf;}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  font-size:13px;
  color:#8b9a95;
}

/* ============ 入场动效 ============ */
.fade-up{
  opacity:0;
  transform:translateY(10px);
  transition:opacity 480ms var(--ease),transform 480ms var(--ease);
}
.fade-up.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 32px;}
  .hero h1{font-size:48px;}
  .cmd-search{width:200px;}
  .cmd-search:focus-within{width:240px;}
}

@media (max-width:991px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .cmd-search{display:none;}
  .header-actions .link-quiet{display:none;}
  .header-inner{justify-content:space-between;}
  body.nav-open{overflow:hidden;}
  body.nav-open .main-nav{
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    gap:6px;
    position:fixed;
    left:0;right:0;top:64px;bottom:0;
    background:var(--c-bg);
    padding:24px 32px 96px;
    overflow-y:auto;
    z-index:90;
  }
  body.nav-open .main-nav a{
    width:100%;
    height:auto;
    padding:16px 8px;
    font-size:20px;
    font-weight:600;
    color:var(--c-text);
    border-bottom:1px solid var(--c-line);
    border-radius:0;
  }
  body.nav-open .main-nav a.is-active{color:var(--c-primary);}
  body.nav-open .main-nav a.is-active::after{display:none;}
  body.nav-open .header-actions::after{
    content:"立即开通";
    position:fixed;
    left:32px;right:32px;bottom:24px;
    z-index:95;
    display:flex;
    align-items:center;
    justify-content:center;
    height:48px;
    border-radius:var(--radius-sm);
    background:var(--c-primary);
    color:#fff;
    font-size:16px;
    font-weight:600;
    pointer-events:none;
  }

  .hero{padding:48px 0 64px;}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .hero-visual{order:-1;aspect-ratio:16/10;}
  .hero h1{font-size:38px;}
  .section{padding:72px 0;}
  .section-head h2{font-size:30px;}
  .timeline::before{left:9px;}
  .tl-item{grid-template-columns:36px minmax(0,1fr);gap:20px;padding-bottom:32px;}
  .notice{grid-template-columns:36px minmax(0,1fr);gap:20px;}
  .dual-grid{grid-template-columns:minmax(0,1fr);gap:24px;}
  .media-block{grid-template-columns:minmax(0,1fr);gap:32px;}
  .media-block .media-copy h2{font-size:30px;}
  .cta-panel{grid-template-columns:minmax(0,1fr);gap:32px;padding:36px;}
  .cta-panel h2{font-size:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:575px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .brand-name{font-size:16px;}
  .hero{padding:32px 0 56px;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .trust-bar{gap:16px 24px;}
  .trust-item b{font-size:20px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:36px;}
  .section-head h2{font-size:26px;}
  .tl-body{padding:22px 20px;}
  .tl-body h3{font-size:20px;}
  .dual-card{padding:24px 20px;}
  .dual-card h3{font-size:20px;}
  .media-block .media-copy h2{font-size:26px;}
  .cta-section{padding:56px 0;}
  .cta-panel{padding:28px 20px;border-radius:var(--radius-md);}
  .cta-panel h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;}
  body.nav-open .main-nav{padding:20px 20px 96px;top:56px;}
  body.nav-open .header-actions::after{left:20px;right:20px;bottom:20px;}
  .header-inner{min-height:56px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
  .fade-up{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
  .tl-body:hover,.dual-card:hover,.media-figure:hover img{transform:none;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1E6F5C;
  --c-primary-hover:#175A4A;
  --c-primary-active:#11463A;
  --c-primary-soft:#E7F1EE;
  --c-accent:#DE7A45;
  --c-ink:#0E1F1B;
  --c-bg:#F7F6F2;
  --c-card:#FFFFFF;
  --c-sub:#EFF2EF;
  --c-line:#E2E4DF;
  --t-main:#12181A;
  --t-sub:#5B6663;
  --t-weak:#8B9490;
  --ok:#2E8B6B;
  --warn:#C2703A;
  --err:#B4483C;
  --r-btn:10px;
  --r-card:16px;
  --r-visual:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,28,.04), 0 8px 24px -12px rgba(16,32,28,.10);
  --sh-2:0 2px 4px rgba(16,32,28,.06), 0 16px 32px -16px rgba(16,32,28,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:220ms;
  --sp:8px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--t-main);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--c-primary-hover)}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:4px;
}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),transform var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{background:var(--c-primary-active);transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--c-primary);border:1px solid var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-hover);transform:translateY(-1px)}
.btn-ghost:active{background:#DCEAE5;transform:translateY(0)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-btn)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px}
.btn-text .arrow{transition:transform var(--dur) var(--ease)}
.btn-text:hover .arrow{transform:translateX(4px)}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--r-pill);background:rgba(30,111,92,.12);color:var(--c-primary);
  font-size:12.5px;font-weight:600;letter-spacing:.08em;
}
.badge-warm{background:rgba(222,122,69,.12);color:#B85F30}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.86);
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),backdrop-filter var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,246,242,.92);
  border-bottom-color:var(--c-line);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}
.header-inner{
  display:flex;align-items:center;gap:24px;height:64px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t-main);flex-shrink:0}
.brand:hover{color:var(--c-primary)}
.brand-mark{width:28px;height:28px;color:var(--c-primary);flex-shrink:0}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.main-nav a{
  position:relative;display:inline-flex;align-items:center;height:64px;
  padding:0 12px;font-size:14.5px;color:var(--t-sub);font-weight:500;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:14px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left center;
  transition:transform var(--dur) var(--ease);
}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.main-nav a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.cmd-search{
  display:flex;align-items:center;gap:8px;height:40px;width:240px;padding:0 12px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-btn);
  transition:width var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.cmd-search:focus-within{width:320px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(30,111,92,.10)}
.cmd-search svg{width:16px;height:16px;color:var(--t-weak);flex-shrink:0}
.cmd-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:16px;color:var(--t-main)}
.cmd-search input::placeholder{color:var(--t-weak);font-size:14px}
.cmd-search kbd{
  font-family:inherit;font-size:12px;color:var(--t-weak);
  background:var(--c-sub);border:1px solid var(--c-line);border-radius:6px;padding:1px 6px;
}
.link-quiet{font-size:14px;color:var(--t-sub);white-space:nowrap}
.link-quiet:hover{color:var(--c-primary)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-btn);color:var(--t-main);
}
.nav-toggle:hover{background:var(--c-sub)}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:56px 0 0 0;z-index:55;
  background:var(--c-bg);padding:24px 20px 96px;
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur);
  overflow-y:auto;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{
  display:block;padding:16px 4px;font-size:19px;font-weight:600;color:var(--t-main);
  border-bottom:1px solid var(--c-line);
}
.drawer nav a.is-active{color:var(--c-primary)}
.drawer-cta{position:fixed;left:0;right:0;bottom:0;padding:16px 20px;background:var(--c-bg);border-top:1px solid var(--c-line)}
.drawer-cta .btn{width:100%}

/* ---------- Hero ---------- */
.hero{padding:80px 0 88px}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero h1{
  font-size:58px;line-height:1.12;letter-spacing:-.02em;font-weight:700;margin:20px 0 0;
}
.hero h1 .hl{color:var(--c-accent)}
.hero-sub{margin-top:20px;font-size:17.5px;color:var(--t-sub);line-height:1.8;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:36px;margin-top:40px;padding-top:28px;
  border-top:1px solid var(--c-line);
}
.hero-trust div{min-width:110px}
.hero-trust .num{font-size:26px;font-weight:700;color:var(--c-primary);line-height:1.2}
.hero-trust .lbl{font-size:13.5px;color:var(--t-weak);margin-top:4px}
.hero-visual{
  position:relative;border-radius:var(--r-visual);overflow:hidden;
  aspect-ratio:6/5;background:var(--c-primary-soft);box-shadow:var(--sh-1);
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;background:rgba(30,111,92,.10);
}
.hero-note{
  position:absolute;left:20px;bottom:20px;z-index:2;
  background:rgba(255,255,255,.94);border-radius:14px;padding:14px 18px;
  box-shadow:var(--sh-1);max-width:15em;
}
.hero-note strong{display:block;font-size:15px;color:var(--c-primary)}
.hero-note span{font-size:13px;color:var(--t-sub)}

.fade-up{opacity:0;transform:translateY(10px);animation:fadeUp .62s var(--ease) forwards}
.fade-up.d1{animation-delay:.06s}
.fade-up.d2{animation-delay:.13s}
.fade-up.d3{animation-delay:.2s}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section-head{max-width:720px}
.section-head.center{margin:0 auto;text-align:center}
h2{font-size:38px;line-height:1.2;font-weight:700;letter-spacing:-.015em}
.section-desc{margin-top:16px;color:var(--t-sub);font-size:16.5px}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.16em;font-weight:700;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:14px;
}

/* ---------- 指南 + FAQ 布局 ---------- */
.guide-wrap{padding:96px 0 104px}
.guide-layout{display:grid;grid-template-columns:250px 1fr;gap:56px;align-items:start}
.anchor-nav{position:sticky;top:96px}
.anchor-nav .anchor-title{
  font-size:12.5px;letter-spacing:.16em;font-weight:700;color:var(--t-weak);margin-bottom:14px;
}
.anchor-nav a{
  display:block;padding:9px 0 9px 14px;font-size:15px;color:var(--t-sub);
  border-left:2px solid transparent;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.anchor-nav a:hover{color:var(--c-primary);background:rgba(30,111,92,.05)}
.anchor-nav a.is-current{color:var(--c-primary);font-weight:600;border-left-color:var(--c-primary)}
.anchor-note{
  margin-top:24px;padding:18px;border-radius:var(--r-card);background:#fff;
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
}
.anchor-note p{font-size:14px;color:var(--t-sub);line-height:1.7}
.anchor-note .btn{margin-top:14px;width:100%}

.faq-group{margin-bottom:52px}
.faq-group:last-child{margin-bottom:0}
.faq-group h3{font-size:23px;font-weight:600;margin-bottom:6px}
.faq-group .group-note{font-size:14.5px;color:var(--t-weak);margin-bottom:20px}
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:0 20px;box-shadow:var(--sh-1);
  transition:box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-2);transform:translateY(-4px)}
.faq-item summary{
  display:flex;align-items:flex-start;justify-content:space-between;gap:14px;
  padding:18px 0;font-size:16.5px;font-weight:600;line-height:1.6;
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{
  position:relative;flex-shrink:0;width:18px;height:18px;margin-top:5px;
  transition:transform var(--dur) var(--ease);
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
}
.faq-item summary .plus::before{left:0;top:8px;width:18px;height:2px}
.faq-item summary .plus::after{left:8px;top:0;width:2px;height:18px}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-answer{
  padding:0 0 20px;border-top:1px solid var(--c-line);
  margin-top:-1px;padding-top:16px;
  font-size:15px;line-height:1.75;color:var(--t-sub);
}
.faq-answer p+p{margin-top:10px}
.faq-answer .k{color:var(--c-primary);font-weight:600}

/* ---------- 常用操作 ---------- */
.steps{padding:96px 0;background:var(--c-sub)}
.step-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.step-card{
  position:relative;background:#fff;border-radius:var(--r-card);padding:32px 26px 28px;
  box-shadow:var(--sh-1);transition:box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.step-card:hover{box-shadow:var(--sh-2);transform:translateY(-4px)}
.step-card .no{
  font-size:52px;font-weight:700;line-height:1;color:var(--c-primary-soft);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.step-card h3{font-size:21px;font-weight:600;margin-top:-14px}
.step-card p{margin-top:10px;font-size:15px;color:var(--t-sub);line-height:1.75}
.step-row .step-card+.step-card::before{
  content:"";position:absolute;left:-13px;top:44px;bottom:44px;border-left:1px dashed var(--c-line);
}

/* ---------- 排查清单 ---------- */
.check-list{margin-top:44px;border-top:1px solid var(--c-line)}
.check-list li{
  display:flex;gap:20px;padding:26px 0;border-bottom:1px solid var(--c-line);
  transition:background var(--dur) var(--ease);
}
.check-list li:hover{background:rgba(255,255,255,.7)}
.check-list .idx{
  flex-shrink:0;font-size:22px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;width:52px;line-height:1.5;
}
.check-list h3{font-size:19px;font-weight:600}
.check-list p{margin-top:6px;font-size:15px;color:var(--t-sub);line-height:1.75}
.tip-bar{
  display:flex;gap:14px;align-items:flex-start;
  margin-top:36px;padding:18px 20px;border-radius:var(--r-card);
  background:rgba(222,122,69,.08);border-left:3px solid var(--c-accent);
}
.tip-bar p{font-size:15px;line-height:1.75;color:#8A4B26}
.tip-bar strong{color:#B85F30}

/* ---------- 图文说明 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:48px}
.split-card{
  background:#fff;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
  transition:box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.split-card:hover{box-shadow:var(--sh-2);transform:translateY(-4px)}
.split-card .media{overflow:hidden;aspect-ratio:16/9;background:var(--c-primary-soft)}
.split-card .media img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur) var(--ease)}
.split-card:hover .media img{transform:scale(1.03)}
.split-card .body{padding:26px}
.split-card h3{font-size:21px;font-weight:600;margin-top:12px}
.split-card p{margin-top:10px;font-size:15px;color:var(--t-sub);line-height:1.75}

/* ---------- CTA ---------- */
.cta{padding:0 0 112px}
.cta-box{
  background:var(--c-sub);border:1px solid var(--c-line);border-radius:var(--r-visual);
  padding:56px 48px;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;
}
.cta-box h2{font-size:34px}
.cta-box .cta-desc{margin-top:14px;font-size:16px;color:var(--t-sub)}
.cta-form{display:grid;gap:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--t-sub);margin-bottom:6px}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;font-size:16px;color:var(--t-main);
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-btn);
  outline:none;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.field textarea{height:88px;padding:12px 14px;resize:vertical;line-height:1.6}
.field input:focus,.field textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(30,111,92,.10)}
.cta-form .btn{width:100%}
.form-hint{font-size:13px;color:var(--t-weak)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#C9D2CE;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16.5px}
.footer-brand .brand-mark{color:#7FC1AC}
.site-footer p{font-size:14px;line-height:1.75;color:#9FADA7;margin-top:14px}
.footer-title{font-size:13px;letter-spacing:.14em;font-weight:700;color:#fff;margin:0}
.footer-links{margin-top:8px}
.footer-links li{margin-top:10px}
.footer-links a{font-size:14px;color:#9FADA7}
.footer-links a:hover{color:#fff}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  margin-top:56px;padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;color:#7C8A84;
}

/* ---------- 视口淡入 ---------- */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-in{opacity:1;transform:translateY(0);transition:opacity .6s var(--ease),transform .6s var(--ease)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 32px}
  .hero h1{font-size:50px}
  h2{font-size:34px}
  .cmd-search{width:210px}
  .main-nav a{padding:0 10px;font-size:14px}
}
@media (max-width:991px){
  .main-nav,.cmd-search,.link-quiet,.header-actions .btn{display:none}
  .nav-toggle{display:inline-flex}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:-1;aspect-ratio:16/10}
  .hero h1{font-size:40px}
  .section,.guide-wrap,.steps{padding:72px 0}
  .guide-layout{grid-template-columns:1fr;gap:32px}
  .anchor-nav{position:static}
  .anchor-nav .anchor-links{display:flex;flex-wrap:wrap;gap:8px}
  .anchor-nav a{
    border-left:0;border:1px solid var(--c-line);border-radius:var(--r-pill);
    padding:8px 16px;background:#fff;font-size:14px;
  }
  .anchor-nav a.is-current{border-color:var(--c-primary);background:var(--c-primary-soft)}
  .anchor-note{display:none}
  .cta-box{grid-template-columns:1fr;gap:32px;padding:40px 32px}
  .split{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .header-inner{height:56px}
  .brand-name{font-size:15.5px}
  .drawer{inset:56px 0 0 0}
  .hero h1{font-size:34px}
  .hero-sub{font-size:16px}
  .hero-trust{gap:24px}
  .hero-trust .num{font-size:22px}
  h2{font-size:27px}
  .faq-grid{grid-template-columns:1fr}
  .step-row{grid-template-columns:1fr;gap:16px}
  .step-row .step-card+.step-card::before{
    left:24px;right:24px;top:-8px;bottom:auto;border-left:0;border-top:1px dashed var(--c-line);
  }
  .check-list li{gap:14px}
  .check-list .idx{width:38px;font-size:19px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%}
  .cta-box{padding:32px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}