/* roulang page: index */
:root{
  --brand-700:#14524A;
  --brand-900:#0C3B35;
  --brand-500:#1E7A6B;
  --brand-100:#DCEFE7;
  --accent-500:#E9902F;
  --accent-100:#FDEDD8;
  --accent-700:#A85F12;
  --ink-900:#101C1A;
  --ink-600:#4E5F5B;
  --ink-400:#86958F;
  --line:#E2E7E3;
  --bg:#F5F7F4;
  --surface:#FFFFFF;
  --danger:#C0392B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,28,26,.06);
  --sh-2:0 8px 24px rgba(16,28,26,.08);
  --sh-3:0 18px 48px rgba(16,28,26,.12);

  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-color:#4E5F5B;
  --bs-body-bg:#F5F7F4;
  --bs-border-radius:12px;
  --bs-border-radius-sm:8px;
  --bs-border-radius-lg:18px;
  --bs-primary:#1E7A6B;
  --bs-link-color:#14524A;
  --bs-link-hover-color:#1E7A6B;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-500);}
h1,h2,h3,h4{color:var(--ink-900);margin:0;letter-spacing:-0.01em;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}

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

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,background .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);background:rgba(255,255,255,.92);}
.nav-bar{
  min-height:76px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:46px;height:46px;border-radius:var(--r-sm);
  background:var(--brand-700);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;letter-spacing:.02em;
  font-family:Inter,system-ui,sans-serif;
}
.brand-name{
  font-size:18px;font-weight:700;color:var(--ink-900);
  letter-spacing:-0.01em;line-height:1.2;
}
.brand-sub{
  display:block;font-size:12px;color:var(--ink-400);font-weight:400;letter-spacing:.04em;
}
.nav-quick{
  margin-left:auto;display:flex;align-items:center;gap:26px;
}
.nav-quick a{
  font-size:15px;color:var(--ink-600);font-weight:500;
}
.nav-quick a:hover{color:var(--brand-700);}
.nav-toggle{
  display:none;margin-left:auto;
  width:42px;height:42px;border:1px solid var(--line);
  border-radius:var(--r-sm);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.nav-lower{
  display:flex;align-items:center;gap:32px;
  min-height:64px;
  border-top:1px solid var(--line);
  padding:10px 0;
}
.cat-links{display:flex;align-items:center;gap:22px;flex-wrap:wrap;}
.cat-links a{
  font-size:15px;color:var(--ink-600);font-weight:500;
  padding:4px 0;position:relative;
}
.cat-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand-700);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.cat-links a:hover{color:var(--brand-700);}
.cat-links a:hover::after{transform:scaleX(1);}
.cat-links a.active{color:var(--brand-700);font-weight:600;}
.cat-links a.active::after{transform:scaleX(1);}

.nav-search{
  margin-left:auto;
  position:relative;
  display:flex;align-items:center;
  width:48%;
  max-width:520px;
  height:44px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding-left:44px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{
  border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(30,122,107,.14);
}
.nav-search .search-icon{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  width:20px;height:20px;stroke:var(--ink-400);fill:none;stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round;
}
.nav-search input{
  flex:1;height:100%;border:0;background:transparent;outline:none;
  font-size:15px;color:var(--ink-900);padding:0 14px 0 0;
}
.nav-search input::placeholder{color:var(--ink-400);}
.nav-search button{
  height:36px;margin-right:4px;padding:0 22px;
  border:0;border-radius:var(--r-pill);
  background:var(--accent-500);color:#fff;font-size:14px;font-weight:600;
  cursor:pointer;transition:background .18s ease,transform .18s ease;
}
.nav-search button:hover{background:#d97f1f;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;
  background-position:center;
  min-height:520px;
  display:flex;align-items:center;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(12,59,53,.94) 0%,rgba(12,59,53,.86) 55%,rgba(20,82,74,.78) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.5;
}
.hero-inner{position:relative;z-index:2;padding:84px 0;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(220,239,231,.16);color:#C7E4D9;
  font-size:13px;letter-spacing:.04em;margin-bottom:20px;
}
.hero-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);}
.hero h1{
  color:#fff;
  font-size:clamp(26px,4vw,40px);
  line-height:1.28;
  margin-bottom:16px;
  max-width:640px;
}
.hero-sub{
  color:#CBE3DA;font-size:17px;max-width:560px;margin-bottom:28px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;border-radius:var(--r-sm);
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-accent:hover{background:#d97f1f;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-accent:active{transform:translateY(0);}
.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 26px;border-radius:var(--r-sm);
  background:transparent;color:#fff;font-size:15px;font-weight:600;
  border:1.5px solid rgba(255,255,255,.55);
  transition:background .18s ease,transform .18s ease,border-color .18s ease;
}
.btn-ghost-light:hover{background:rgba(220,239,231,.14);color:#fff;border-color:rgba(255,255,255,.9);transform:translateY(-2px);}
.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 24px;border-radius:var(--r-sm);
  background:#fff;color:var(--brand-700);font-size:15px;font-weight:600;
  border:1.5px solid var(--brand-700);
  transition:background .18s ease,transform .18s ease,color .18s ease;
}
.btn-outline-brand:hover{background:var(--brand-100);color:var(--brand-900);transform:translateY(-2px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand-700);
}
.link-arrow svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s ease;}
.link-arrow:hover svg{transform:translateX(4px);}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px;}
.hero-points li{
  position:relative;padding-left:18px;color:#B9D6CB;font-size:13px;
}
.hero-points li::before{
  content:"";position:absolute;left:0;top:8px;
  width:7px;height:7px;border-radius:2px;background:var(--accent-500);
}

/* ---------- Login panel ---------- */
.login-panel{
  background:var(--surface);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  padding:28px;
}
.login-panel h2{font-size:19px;margin-bottom:6px;}
.login-panel .panel-note{font-size:13px;color:var(--ink-400);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{
  display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px;
}
.field input{
  width:100%;height:46px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;font-size:15px;color:var(--ink-900);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder{color:var(--ink-400);}
.field input:focus{
  outline:none;border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(30,122,107,.14);
}
.field-hint{font-size:13px;color:var(--ink-400);margin-top:6px;}
.btn-block{width:100%;}
.panel-links{
  display:flex;justify-content:space-between;gap:12px;margin-top:16px;
  font-size:13px;
}
.panel-links a{color:var(--brand-700);}
.panel-links a:hover{text-decoration:underline;}

/* ---------- Sections ---------- */
.section{padding:96px 0;}
.section-tint{background:#fff;}
.section-mint{background:rgba(220,239,231,.45);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{
  font-size:clamp(21px,2.6vw,28px);
  line-height:1.35;
  position:relative;
  padding-left:18px;
  margin-bottom:12px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:14px;
  border-top:2px solid var(--accent-500);border-bottom:2px solid var(--accent-500);
}
.section-head.center .section-title{padding-left:0;}
.section-head.center .section-title::before{display:none;}
.section-sub{font-size:16px;color:var(--ink-600);max-width:720px;}
.section-head.center .section-sub{margin:0 auto;}
.head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  flex-wrap:wrap;margin-bottom:44px;
}

/* ---------- Stat strip ---------- */
.stat-strip{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:28px 8px;
  margin-top:-52px;
  position:relative;z-index:3;
}
.stat-item{text-align:center;padding:8px 12px;}
.stat-item .num{
  font-family:Inter,system-ui,sans-serif;
  font-size:28px;font-weight:700;color:var(--brand-700);line-height:1.2;
}
.stat-item .lbl{font-size:14px;color:var(--ink-600);margin-top:4px;}
.stat-item + .stat-item{border-left:1px solid var(--line);}
.stat-strip .row > div:first-child .stat-item{border-left:0;}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;}
.steps::before{
  content:"";position:absolute;top:34px;left:12%;right:12%;height:2px;
  background:var(--line);z-index:0;
}
.step-card{
  position:relative;z-index:1;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:24px;
  transition:transform .18s ease,box-shadow .18s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.step-card.alt{background:rgba(220,239,231,.55);}
.step-num{
  width:44px;height:44px;border-radius:var(--r-sm);
  background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  font-family:Inter,system-ui,sans-serif;font-size:20px;font-weight:700;
  margin-bottom:18px;
}
.step-card h3{font-size:18px;margin-bottom:8px;}
.step-card p{font-size:15px;line-height:1.75;color:var(--ink-600);}
.step-tag{
  display:inline-block;margin-top:14px;
  height:24px;line-height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--accent-100);color:var(--accent-700);font-size:12px;font-weight:600;
}

/* ---------- Scroller ---------- */
.scroller{
  display:flex;gap:20px;overflow-x:auto;padding:6px 2px 20px;
  scroll-snap-type:x mandatory;
}
.scroller::-webkit-scrollbar{height:6px;}
.scroller::-webkit-scrollbar-thumb{background:var(--line);border-radius:var(--r-pill);}
.scene-card{
  scroll-snap-align:start;
  flex:0 0 300px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:22px;
  transition:transform .18s ease,box-shadow .18s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.scene-index{
  font-family:Inter,system-ui,sans-serif;font-size:30px;font-weight:700;
  color:var(--brand-100);line-height:1;margin-bottom:14px;
}
.scene-card h3{font-size:17px;margin-bottom:8px;}
.scene-card p{font-size:14px;line-height:1.7;}
.scene-line{height:2px;width:34px;background:var(--accent-500);margin:14px 0 0;}

/* ---------- Proof ---------- */
.proof-big{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  height:100%;
  transition:box-shadow .18s ease,transform .18s ease;
}
.proof-big:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.proof-big img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.proof-big .proof-body{padding:24px;}
.proof-big h3{font-size:19px;margin-bottom:10px;}
.proof-big p{font-size:15px;line-height:1.8;}
.proof-metrics{display:flex;gap:32px;margin-top:20px;flex-wrap:wrap;}
.proof-metrics .m .n{
  font-family:Inter,system-ui,sans-serif;font-size:22px;font-weight:700;color:var(--brand-700);
}
.proof-metrics .m .t{font-size:13px;color:var(--ink-400);}
.proof-side{display:flex;flex-direction:column;gap:20px;height:100%;}
.proof-mini{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:22px;
  flex:1;
  transition:box-shadow .18s ease,transform .18s ease;
}
.proof-mini:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.proof-mini h3{font-size:17px;margin:12px 0 8px;}
.proof-mini p{font-size:14px;line-height:1.75;}
.badge-soft{
  display:inline-block;height:24px;line-height:24px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--brand-100);color:var(--brand-700);
  font-size:12px;font-weight:600;
}
.badge-warm{
  display:inline-block;height:24px;line-height:24px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--accent-100);color:var(--accent-700);
  font-size:12px;font-weight:600;
}

/* ---------- FAQ ---------- */
.faq-intro h2{padding-left:18px;position:relative;font-size:clamp(21px,2.6vw,28px);margin-bottom:14px;}
.faq-intro h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:14px;
  border-top:2px solid var(--accent-500);border-bottom:2px solid var(--accent-500);
}
.faq-intro p{font-size:15px;line-height:1.8;margin-bottom:20px;}
.accordion.faq-accordion{border-radius:0;}
.faq-accordion .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);
}
.faq-accordion .accordion-button{
  background:transparent;box-shadow:none;padding:20px 44px 20px 0;
  font-size:16px;font-weight:600;color:var(--ink-900);
  position:relative;border-radius:0;
  transition:color .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand-700);}
.faq-accordion .accordion-button::after{
  display:none;
}
.faq-accordion .accordion-button::before{
  content:"+";
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--ink-400);line-height:1;
}
.faq-accordion .accordion-button:not(.collapsed)::before{
  content:"−";color:var(--brand-700);
}
.faq-accordion .accordion-button:focus{box-shadow:none;}
.faq-accordion .accordion-body{
  padding:0 40px 22px 16px;font-size:15px;line-height:1.85;color:var(--ink-600);
  border-left:3px solid var(--accent-500);
  margin-left:0;
}
.faq-accordion .accordion-header{margin:0;}

/* ---------- Posts (CMS) ---------- */
.post-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.post-thumb{display:block;}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.post-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.post-body h3{
  font-size:17px;line-height:1.5;margin:12px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body h3 a{color:var(--ink-900);}
.post-body h3 a:hover{color:var(--brand-700);}
.post-summary{
  font-size:14px;line-height:1.7;color:var(--ink-600);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:16px;
}
.post-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-400);
  padding-top:14px;border-top:1px solid var(--line);
}
.empty-state{
  text-align:center;padding:56px 20px;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty-icon{
  width:72px;height:72px;border-radius:var(--r-md);
  background:var(--brand-100);margin:0 auto 18px;
}
.empty-state p{font-size:15px;color:var(--ink-600);margin-bottom:12px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--brand-900);
  color:#CBE3DA;
  padding:88px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-band::after{
  content:"";position:absolute;left:-80px;top:-40px;bottom:-40px;width:220px;
  background:rgba(233,144,47,.12);
  transform:skewX(-14deg);
}
.cta-band .container{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(21px,2.6vw,28px);margin-bottom:14px;}
.cta-band p{color:#B9D6CB;font-size:16px;max-width:520px;}
.cta-list{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.cta-list li{position:relative;padding-left:18px;font-size:14px;color:#B9D6CB;}
.cta-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--accent-500);
}
.form-card{
  background:var(--surface);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  padding:28px;
}
.form-card h3{font-size:18px;margin-bottom:6px;}
.form-card .form-note{font-size:13px;color:var(--ink-400);margin-bottom:20px;}
.privacy-note{font-size:12px;color:var(--ink-400);margin-top:14px;line-height:1.7;}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  background:var(--brand-900);
  color:var(--brand-100);
  padding:72px 0 0;
  margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;bottom:100%;height:16px;
  background:var(--brand-900);
  clip-path:polygon(0 100%,100% 0,100% 100%);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(220,239,231,.16);color:#fff;}
.footer-brand .brand-name{color:#fff;font-size:17px;}
.footer-desc{font-size:14px;color:#A9C9BE;line-height:1.8;max-width:320px;}
.footer-col h4{
  color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#B9D6CB;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-col li{font-size:14px;color:#A9C9BE;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(220,239,231,.16);
  padding:20px 0;font-size:12px;color:rgba(220,239,231,.7);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
}

/* ---------- Responsive ---------- */
@media (min-width:1400px){
  .container{max-width:1280px;}
  .step-card,.post-body,.proof-mini,.scene-card{padding-left:32px;padding-right:32px;}
}
@media (max-width:1199px){
  .nav-search{width:42%;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .nav-bar{min-height:60px;}
  .nav-quick{display:none;}
  .nav-toggle{display:flex;}
  .nav-lower{
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:12px 0 18px;
  }
  .nav-lower.is-open{display:flex;}
  .cat-links{flex-direction:column;align-items:flex-start;gap:0;}
  .cat-links a{display:block;width:100%;padding:11px 0;font-size:15px;border-bottom:1px solid var(--line);}
  .cat-links a::after{display:none;}
  .cat-links a.active{color:var(--brand-700);}
  .nav-search{width:100%;max-width:none;margin:14px 0 0;height:42px;}
  .nav-search input::placeholder{color:var(--ink-400);}
  .hero{min-height:auto;}
  .hero-inner{padding:64px 0;}
  .steps{grid-template-columns:1fr;}
  .steps::before{display:none;}
  .stat-strip{margin-top:-32px;}
  .stat-item + .stat-item{border-left:0;border-top:1px solid var(--line);}
  .stat-strip .row > div:first-child .stat-item{border-top:0;}
  .footer-col{margin-bottom:28px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .hero-inner{padding:56px 0;}
  .hero-cta .btn-accent,.hero-cta .btn-ghost-light{width:100%;}
  .section{padding:56px 0;}
  .cta-band{padding:64px 0;}
  .form-card{padding:22px;}
  .login-panel{padding:22px;}
  .proof-mini{flex:none;}
}
@media (max-width:575px){
  .brand-name{font-size:16px;}
  .brand-mark{width:40px;height:40px;font-size:13px;}
  .scene-card{flex:0 0 84%;}
  .footer-bottom{flex-direction:column;gap:6px;}
}

/* roulang page: category1 */
:root{
  --brand-700:#14524A;
  --brand-900:#0C3B35;
  --brand-500:#1E7A6B;
  --brand-100:#DCEFE7;
  --accent-500:#E9902F;
  --accent-100:#FDEDD8;
  --ink-900:#101C1A;
  --ink-600:#4E5F5B;
  --ink-400:#86958F;
  --line:#E2E7E3;
  --bg:#F5F7F4;
  --surface:#FFFFFF;
  --error:#C0392B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,28,26,.06);
  --sh-2:0 8px 24px rgba(16,28,26,.08);
  --sh-3:0 18px 48px rgba(16,28,26,.12);
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-color:var(--ink-600);
  --bs-body-bg:var(--bg);
  --bs-primary:var(--brand-500);
  --bs-border-color:var(--line);
  --bs-border-radius:var(--r-md);
  --bs-link-color:var(--brand-700);
  --bs-link-hover-color:var(--brand-500);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-600);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{color:var(--ink-900);font-weight:700;letter-spacing:-0.01em;margin:0;}
h1{font-size:clamp(26px,4vw,40px);line-height:1.28;}
h2{font-size:clamp(21px,2.6vw,28px);line-height:1.35;}
h3{font-size:18px;line-height:1.45;font-weight:600;}
p{margin:0 0 18px;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;}
a:hover{color:var(--brand-500);}
img{max-width:100%;height:auto;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
@media (min-width:1400px){.container{max-width:1280px;}}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.92);border-bottom:1px solid var(--line);transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:76px;gap:16px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink-900);text-decoration:none;}
.brand:hover{color:var(--ink-900);}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-md);background:var(--brand-700);color:#fff;font-weight:700;font-size:16px;letter-spacing:.02em;flex:0 0 auto;}
.brand-name{display:block;font-size:18px;font-weight:700;line-height:1.25;color:var(--ink-900);}
.brand-sub{display:block;font-size:12px;color:var(--ink-400);line-height:1.4;}
.nav-quick{display:flex;align-items:center;gap:22px;}
.nav-quick a{font-size:15px;color:var(--ink-600);}
.nav-quick a:hover{color:var(--brand-700);}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;padding:9px;flex-direction:column;justify-content:space-between;cursor:pointer;}
.nav-toggle span{display:block;height:2px;background:var(--brand-700);border-radius:2px;}
.nav-lower{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;border-top:1px solid var(--line);}
.cat-links{display:flex;align-items:center;gap:20px;flex:0 1 auto;}
.cat-links a{font-size:15px;color:var(--ink-600);padding:6px 0;border-bottom:2px solid transparent;}
.cat-links a:hover{color:var(--brand-700);}
.cat-links a.active{color:var(--brand-700);border-bottom-color:var(--brand-700);font-weight:600;}
.nav-search{position:relative;display:flex;align-items:center;flex:0 1 46%;max-width:520px;height:44px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:0 6px 0 42px;transition:border-color .18s ease,box-shadow .18s ease;}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,107,.14);}
.nav-search .search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:20px;height:20px;fill:none;stroke:var(--ink-400);stroke-width:1.8;stroke-linecap:round;}
.nav-search input[type=search]{flex:1 1 auto;min-width:0;height:38px;border:0;background:transparent;font-size:14px;color:var(--ink-900);outline:none;}
.nav-search input[type=search]::placeholder{color:var(--ink-400);}
.nav-search button{flex:0 0 auto;height:34px;padding:0 18px;border:0;border-radius:var(--r-pill);background:var(--accent-500);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background-color .18s ease,transform .18s ease;}
.nav-search button:hover{background:#d97f1e;transform:translateY(-1px);}
@media (max-width:991px){
  .nav-bar{height:60px;}
  .nav-quick{display:none;}
  .nav-toggle{display:flex;}
  .nav-lower{display:none;height:auto;padding:12px 0 16px;flex-direction:column;align-items:stretch;gap:14px;}
  .nav-lower.is-open{display:flex;}
  .cat-links{flex-wrap:wrap;gap:8px 16px;}
  .cat-links a{font-size:14px;}
  .nav-search{flex:1 1 auto;max-width:none;width:100%;height:42px;}
  .brand-mark{width:38px;height:38px;font-size:14px;}
  .brand-name{font-size:16px;}
}

/* ---------- buttons / badges ---------- */
.btn-main,.btn-ghost,.btn-outline-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-sm);font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;}
.btn-main{background:var(--accent-500);color:#fff;box-shadow:var(--sh-1);}
.btn-main:hover{background:#d97f1e;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-main:active{transform:translateY(1px);}
.btn-outline-main{background:#fff;border:1.5px solid var(--brand-700);color:var(--brand-700);}
.btn-outline-main:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);}
.btn-block{width:100%;}
.badge-pill{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:600;line-height:1;}
.badge-accent{background:var(--accent-100);color:#A85F12;}
.text-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);}
.text-more svg{width:14px;height:14px;stroke:currentColor;stroke-width:2;fill:none;transition:transform .18s ease;}
.text-more:hover svg{transform:translateX(4px);}

/* ---------- hero ---------- */
.page-hero{position:relative;min-height:240px;display:flex;align-items:flex-end;background-color:var(--brand-900);background-image:linear-gradient(180deg,rgba(12,59,53,.88),rgba(12,59,53,.94)),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;clip-path:polygon(0 0,100% 0,100% calc(100% - 16px),0 100%);padding:36px 0 46px;}
.page-hero .crumbs{font-size:13px;color:rgba(220,239,231,.82);margin-bottom:12px;}
.page-hero .crumbs a{color:rgba(220,239,231,.82);}
.page-hero .crumbs a:hover{color:#fff;}
.page-hero .crumbs span.sep{margin:0 6px;opacity:.7;}
.page-hero h1{color:#fff;}
.page-hero .hero-note{margin:14px 0 0;max-width:760px;font-size:15px;color:rgba(220,239,231,.9);}
@media (max-width:575px){.page-hero{min-height:180px;padding:26px 0 34px;}}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:#fff;}
.section-soft{background:rgba(220,239,231,.45);}
.section-head{margin-bottom:40px;}
.section-head .kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-700);letter-spacing:.04em;margin-bottom:10px;}
.section-head .kicker::before{content:"";display:block;width:22px;height:3px;background:var(--accent-500);border-radius:2px;}
.section-head p{margin:12px 0 0;max-width:720px;font-size:15px;}
@media (max-width:991px){.section{padding:72px 0;}.section-tight{padding:56px 0;}}
@media (max-width:575px){.section{padding:56px 0;}.section-tight{padding:48px 0;}}

/* ---------- layout: article + sticky toc ---------- */
.content-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px;align-items:start;}
.main-col p{max-width:760px;}
.lead{font-size:17px;color:var(--ink-600);line-height:1.9;}
.flow-list{margin:28px 0 8px;border-top:1px solid var(--line);}
.flow-list li{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);transition:padding-left .18s ease,border-color .18s ease;}
.flow-list li:hover{border-left:3px solid var(--accent-500);padding-left:12px;}
.flow-index{flex:0 0 auto;width:40px;height:40px;border-radius:var(--r-sm);background:var(--brand-100);color:var(--brand-700);font-size:16px;font-weight:700;display:flex;align-items:center;justify-content:center;}
.flow-list h3{margin-bottom:6px;}
.flow-list p{margin:0;font-size:14px;color:var(--ink-600);}
.note-box{margin-top:28px;padding:22px 24px;background:var(--brand-100);border-left:3px solid var(--brand-700);border-radius:var(--r-md);}
.note-box h3{margin-bottom:8px;}
.note-box p{margin:0;font-size:15px;color:var(--brand-900);}
.toc-card{position:sticky;top:100px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:24px;}
.toc-card h3{font-size:16px;margin-bottom:14px;}
.toc-card ul{margin-bottom:20px;}
.toc-card li + li{border-top:1px solid var(--line);}
.toc-card li a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;font-size:14px;color:var(--ink-600);}
.toc-card li a:hover{color:var(--brand-700);padding-left:4px;}
.toc-card li a svg{width:14px;height:14px;stroke:var(--ink-400);stroke-width:2;fill:none;}
.toc-meta{border-top:1px solid var(--line);padding-top:14px;font-size:13px;color:var(--ink-400);}
@media (max-width:991px){.content-grid{grid-template-columns:1fr;gap:40px;}.toc-card{position:static;}}

/* ---------- scene cards ---------- */
.scene-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;height:100%;display:flex;flex-direction:column;transition:box-shadow .18s ease,transform .18s ease;}
.scene-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.scene-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.scene-body h3{font-size:17px;}
.scene-body p{margin:0;font-size:14px;color:var(--ink-600);}
@media (max-width:575px){.scene-body{padding:18px;}}

/* ---------- steps timeline ---------- */
.timeline{position:relative;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:2px;background:var(--line);}
.timeline-item{position:relative;padding-bottom:28px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{content:"";position:absolute;left:-28px;top:7px;width:12px;height:12px;border-radius:50%;background:var(--accent-500);box-shadow:0 0 0 4px var(--accent-100);}
.timeline-item h3{margin-bottom:6px;}
.timeline-item p{margin:0 0 10px;font-size:14px;}

/* ---------- faq ---------- */
.faq-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:8px 24px;}
.accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.accordion-item:last-child{border-bottom:0;}
.accordion-button{position:relative;padding:20px 44px 20px 14px;font-size:16px;font-weight:600;color:var(--ink-900);background:transparent;box-shadow:none!important;border-left:3px solid transparent;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
.accordion-button::after{display:none;}
.accordion-button .faq-icon{position:absolute;right:8px;top:50%;transform:translateY(-50%);width:22px;height:22px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);font-size:15px;font-weight:700;line-height:22px;text-align:center;transition:background-color .2s ease,transform .2s ease;}
.accordion-button:not(.collapsed){color:var(--brand-700);border-left-color:var(--accent-500);background:rgba(220,239,231,.28);}
.accordion-button:not(.collapsed) .faq-icon{background:var(--accent-100);color:#A85F12;transform:translateY(-50%) rotate(180deg);}
.accordion-body{padding:0 44px 22px 14px;font-size:15px;color:var(--ink-600);}

/* ---------- cta ---------- */
.cta-band{position:relative;background:var(--brand-900);color:var(--brand-100);padding:72px 0;overflow:hidden;clip-path:polygon(0 16px,100% 0,100% 100%,0 100%);}
.cta-band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(220,239,231,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(220,239,231,.07) 1px,transparent 1px);background-size:44px 44px;pointer-events:none;}
.cta-band h2{color:#fff;}
.cta-band p{color:rgba(220,239,231,.88);margin:14px 0 0;max-width:560px;}
.cta-band .cta-inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.cta-actions .btn-outline-main{background:transparent;border-color:rgba(220,239,231,.7);color:#fff;}
.cta-actions .btn-outline-main:hover{background:rgba(220,239,231,.14);color:#fff;}
@media (max-width:767px){.cta-band .cta-inner{grid-template-columns:1fr;gap:26px;}}

/* ---------- form ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:28px;}
.form-card h3{margin-bottom:6px;}
.form-card .form-tip{margin:0 0 18px;font-size:14px;color:var(--ink-400);}
.form-card label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px;}
.form-card .form-control{height:46px;border-radius:var(--r-sm);border:1px solid var(--line);font-size:15px;color:var(--ink-900);padding:0 14px;box-shadow:none;}
.form-card .form-control:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,107,.14);}
.form-card .field{margin-bottom:16px;}
.privacy-note{margin:14px 0 0;font-size:12px;color:var(--ink-400);}

/* ---------- related cards ---------- */
.rel-card{display:flex;flex-direction:column;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:24px;transition:box-shadow .18s ease,transform .18s ease;}
.rel-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.rel-card .rel-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.rel-card h3{font-size:17px;margin-bottom:10px;}
.rel-card p{font-size:14px;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-card .rel-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-400);}
@media (max-width:575px){.rel-card{padding:18px;}}

/* ---------- footer ---------- */
.site-footer{position:relative;background:var(--brand-900);color:var(--brand-100);padding:64px 0 24px;clip-path:polygon(0 16px,100% 0,100% 100%,0 100%);margin-top:0;}
.site-footer .row{gap:32px 0;}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;}
.footer-col ul li{font-size:14px;color:rgba(220,239,231,.82);padding:6px 0;}
.footer-col ul li a{color:rgba(220,239,231,.82);}
.footer-col ul li a:hover{color:#fff;text-decoration:underline;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.footer-brand .brand-mark{background:#fff;color:var(--brand-900);}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:700;}
.footer-desc{font-size:14px;color:rgba(220,239,231,.82);max-width:340px;margin:0;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;margin-top:40px;padding-top:18px;border-top:1px solid rgba(220,239,231,.2);font-size:12px;color:rgba(220,239,231,.7);}
@media (max-width:575px){.site-footer{padding:52px 0 20px;}}

/* roulang page: article */
:root{
  --brand-700:#14524A;
  --brand-900:#0C3B35;
  --brand-500:#1E7A6B;
  --brand-100:#DCEFE7;
  --accent-500:#E9902F;
  --accent-100:#FDEDD8;
  --ink-900:#101C1A;
  --ink-600:#4E5F5B;
  --ink-400:#86958F;
  --line:#E2E7E3;
  --bg:#F5F7F4;
  --surface:#FFFFFF;
  --danger:#C0392B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,28,26,.06);
  --sh-2:0 8px 24px rgba(16,28,26,.08);
  --sh-3:0 18px 48px rgba(16,28,26,.12);
  --bs-primary:#14524A;
  --bs-primary-rgb:20,82,74;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-color:#101C1A;
  --bs-body-bg:#F5F7F4;
  --bs-border-radius:12px;
  --bs-border-color:#E2E7E3;
  --bs-link-color:#14524A;
  --bs-link-hover-color:#1E7A6B;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:-0.01em;}
p{margin:0;}
a{color:var(--brand-700);text-decoration:none;transition:color 180ms ease;}
a:hover{color:var(--brand-500);}
img{max-width:100%;display:block;}
button,input,textarea,select{font-family:inherit;}
ul,ol{margin:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
@media (min-width:1400px){.container{max-width:1280px;}}
@media (max-width:991px){.container{padding-left:20px;padding-right:20px;}}
@media (max-width:575px){.container{padding-left:16px;padding-right:16px;}}

/* ---------- 头部与导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow 220ms ease,background 220ms ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);background:rgba(255,255,255,.97);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px;}
.brand{display:flex;align-items:center;gap:12px;color:inherit;}
.brand:hover{color:inherit;}
.brand-mark{
  width:46px;height:46px;flex:0 0 46px;border-radius:var(--r-sm);
  background:var(--brand-700);color:#fff;display:grid;place-items:center;
  font-size:15px;font-weight:700;letter-spacing:.02em;font-family:Inter,system-ui,sans-serif;
}
.brand-name{display:block;font-size:17px;font-weight:700;color:var(--ink-900);line-height:1.25;}
.brand-sub{display:block;font-size:12px;color:var(--ink-400);letter-spacing:.02em;}
.nav-quick{display:flex;align-items:center;gap:22px;}
.nav-quick a{font-size:15px;color:var(--ink-600);}
.nav-quick a:hover{color:var(--brand-700);}
.nav-lower{display:flex;align-items:center;gap:28px;height:64px;border-top:1px solid var(--line);}
.cat-links{display:flex;align-items:center;gap:20px;}
.cat-links a{
  font-size:15px;color:var(--ink-600);white-space:nowrap;
  padding-bottom:3px;border-bottom:2px solid transparent;
}
.cat-links a:hover{color:var(--brand-700);}
.cat-links a.active{color:var(--brand-700);font-weight:600;border-bottom-color:var(--brand-700);}
.nav-search{position:relative;display:flex;align-items:center;flex:1 1 auto;max-width:520px;margin-left:auto;}
.nav-search .search-icon{
  position:absolute;left:16px;width:20px;height:20px;
  fill:none;stroke:var(--ink-400);stroke-width:1.8;stroke-linecap:round;pointer-events:none;
}
.nav-search input{
  width:100%;height:44px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:#fff;padding:0 100px 0 46px;font-size:14px;color:var(--ink-900);
  outline:none;transition:border-color 180ms ease,box-shadow 180ms ease;
}
.nav-search input::placeholder{color:var(--ink-400);}
.nav-search input:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,107,.14);}
.nav-search button{
  position:absolute;right:5px;height:34px;padding:0 18px;border:0;
  border-radius:var(--r-pill);background:var(--accent-500);color:#fff;
  font-size:14px;font-weight:600;cursor:pointer;
  transition:background 180ms ease,transform 180ms ease,opacity 180ms ease;
}
.nav-search button:hover{background:#d9821f;transform:translateY(-1px);}
.nav-search button:active{transform:translateY(0);}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform 200ms ease,opacity 200ms ease;}
@media (max-width:991px){
  .nav-bar{height:60px;}
  .nav-quick{display:none;}
  .nav-toggle{display:flex;}
  .nav-lower{
    display:none;flex-direction:column;align-items:stretch;gap:14px;
    height:auto;padding:14px 0 18px;border-top:1px solid var(--line);
  }
  .nav-lower.open{display:flex;}
  .cat-links{flex-wrap:wrap;gap:12px 18px;}
  .nav-search{max-width:none;margin-left:0;order:2;}
}

/* ---------- 通用组件 ---------- */
.btn-main,.btn-line,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;font-size:15px;font-weight:600;border-radius:var(--r-sm);
  cursor:pointer;transition:transform 180ms ease,background 180ms ease,box-shadow 180ms ease,color 180ms ease;
}
.btn-main{background:var(--accent-500);color:#fff;border:1px solid var(--accent-500);}
.btn-main:hover{background:#d9821f;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-main:active{transform:translateY(-1px);}
.btn-line{background:#fff;color:var(--brand-700);border:1.5px solid var(--brand-700);}
.btn-line:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--brand-700);border:1px solid transparent;}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);}
.btn-main:focus-visible,.btn-line:focus-visible,.btn-ghost:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}
.btn-block{width:100%;}
.badge-soft{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:600;
}
.badge-accent{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--accent-100);color:#A85F12;font-size:12px;font-weight:600;
}
.section{padding:72px 0;}
.section-tight{padding:48px 0;}
.section-white{background:#fff;}
.section-soft{background:rgba(220,239,231,.45);}
.sec-title{font-size:clamp(21px,2.6vw,28px);line-height:1.35;font-weight:700;}
.sec-title::before{
  content:"";display:block;width:36px;height:4px;border-radius:2px;background:var(--accent-500);margin-bottom:14px;
}
.sec-desc{margin-top:12px;font-size:15px;color:var(--ink-600);max-width:720px;}
@media (max-width:767px){.section{padding:56px 0;}.section-tight{padding:40px 0;}}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;min-height:240px;display:flex;align-items:center;
  background-image:linear-gradient(115deg,rgba(12,59,53,.94),rgba(12,59,53,.74)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;color:#fff;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:16px;
  background:var(--bg);clip-path:polygon(0 100%,100% 0,100% 100%,0 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:34px;padding-bottom:34px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(220,239,231,.8);}
.crumb a{color:rgba(220,239,231,.9);}
.crumb a:hover{color:#fff;}
.crumb span{color:rgba(220,239,231,.5);}
.crumb .crumb-current{
  color:#fff;max-width:min(420px,60vw);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  font-size:13px;color:#fff;letter-spacing:.02em;
}
@media (max-width:767px){
  .page-hero{min-height:180px;}
  .page-hero .container{padding-top:24px;padding-bottom:24px;}
}

/* ---------- 文章头部 ---------- */
.article-head{background:#fff;border-bottom:1px solid var(--line);padding:44px 0 32px;}
.article-title{font-size:clamp(26px,4vw,40px);line-height:1.28;font-weight:700;max-width:900px;}
.meta-bar{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:18px;font-size:13px;color:var(--ink-400);}
.meta-bar .sep{width:1px;height:12px;background:var(--line);}
@media (max-width:575px){
  .article-head{padding:28px 0 22px;}
  .meta-bar{gap:10px;}
  .meta-bar .sep{display:none;}
}

/* ---------- 正文布局 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:start;}
.main-col{min-width:0;}
.side{position:sticky;top:160px;display:flex;flex-direction:column;gap:20px;}
@media (max-width:991px){
  .layout{grid-template-columns:1fr;gap:32px;}
  .side{position:static;}
}
.article-body{font-size:17px;line-height:1.9;color:var(--ink-600);max-width:760px;}
.article-body p{margin-bottom:20px;}
.article-body h2{
  font-size:clamp(21px,2.6vw,28px);line-height:1.35;font-weight:700;color:var(--ink-900);
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--accent-500);
}
.article-body h3{font-size:18px;line-height:1.45;font-weight:600;color:var(--ink-900);margin:28px 0 12px;}
.article-body ul{list-style:none;padding-left:0;margin-bottom:20px;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:6px;height:6px;border-radius:2px;background:var(--accent-500);
}
.article-body ol{list-style:none;padding-left:0;margin-bottom:20px;counter-reset:od;}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:od;}
.article-body ol li::before{
  content:counter(od);position:absolute;left:0;top:0;color:var(--brand-700);font-weight:700;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--brand-100);
  border-left:3px solid var(--brand-700);border-radius:var(--r-sm);font-size:15px;color:var(--ink-600);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-md);margin:24px auto;object-fit:cover;}
.article-body a{color:var(--brand-700);border-bottom:1px solid rgba(20,82,74,.28);}
.article-body a:hover{color:var(--brand-500);border-bottom-color:rgba(30,122,107,.4);}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th{background:var(--brand-100);color:var(--ink-900);font-weight:600;text-align:left;padding:12px 14px;}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body figcaption{font-size:13px;color:var(--ink-400);text-align:center;margin-top:-12px;margin-bottom:24px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.back-line{margin-top:36px;}
.back-line a{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.back-line a:hover{gap:10px;}
.article-empty{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:44px 32px;text-align:center;box-shadow:var(--sh-1);max-width:760px;
}
.article-empty .empty-mark{
  width:64px;height:64px;border-radius:var(--r-md);background:var(--brand-100);
  margin:0 auto 18px;display:grid;place-items:center;color:var(--brand-700);font-size:22px;font-weight:700;
}
.article-empty h2{font-size:22px;margin-bottom:10px;}
.article-empty p{font-size:15px;color:var(--ink-600);margin-bottom:22px;}

/* ---------- 侧栏 ---------- */
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:16px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--accent-500);}
.side-nav{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px;}
.side-nav a{
  display:block;font-size:14px;color:var(--ink-600);padding:9px 10px;border-radius:var(--r-sm);
  border-left:3px solid transparent;transition:all 180ms ease;
}
.side-nav a:hover{background:var(--brand-100);border-left-color:var(--accent-500);color:var(--brand-700);padding-left:14px;}
.side-card p{font-size:14px;line-height:1.75;color:var(--ink-600);margin-bottom:16px;}
.side-card .meta-row{font-size:13px;color:var(--ink-400);margin-top:12px;}

/* ---------- 相关推荐 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:32px;}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 200ms ease,box-shadow 200ms ease;height:100%;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.rel-card .thumb{aspect-ratio:16/9;width:100%;object-fit:cover;}
.rel-card .rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-card h3{font-size:17px;font-weight:600;line-height:1.45;}
.rel-card p{font-size:14px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-card .rel-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-400);padding-top:6px;
}
.rel-card .rel-foot b{color:var(--accent-500);font-weight:700;transition:transform 180ms ease;display:inline-block;}
.rel-card:hover .rel-foot b{transform:translateX(4px);}
.rel-empty{
  margin-top:24px;padding:28px;text-align:center;background:#fff;
  border:1px dashed var(--line);border-radius:var(--r-md);font-size:14px;color:var(--ink-400);
}
@media (max-width:991px){.rel-grid{grid-template-columns:1fr;}}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.faq-accordion .accordion-item:first-of-type{border-top:1px solid var(--line);}
.faq-accordion .accordion-button{
  background:transparent;box-shadow:none;border:0;border-radius:0;
  font-size:16px;font-weight:600;color:var(--ink-900);
  padding:20px 8px 20px 4px;transition:all 200ms ease;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand-700);background:transparent;box-shadow:none;
  border-left:3px solid var(--accent-500);padding-left:16px;
}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid rgba(233,144,47,.6);outline-offset:2px;}
.faq-accordion .accordion-button::after{display:none;}
.faq-accordion .fx{margin-left:auto;font-size:20px;line-height:1;color:var(--brand-700);font-weight:400;}
.faq-accordion .fx::before{content:"+";}
.faq-accordion .accordion-button:not(.collapsed) .fx::before{content:"−";}
.faq-accordion .accordion-body{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--ink-600);}
.faq-accordion .accordion-button:not(.collapsed) .accordion-body{padding-left:16px;}
.faq-wrap{max-width:880px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--brand-900);color:#fff;padding:76px 0;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:32px 32px;
}
.cta-band::after{
  content:"";position:absolute;left:-60px;bottom:-60px;width:220px;height:220px;
  background:rgba(233,144,47,.16);transform:rotate(45deg);pointer-events:none;
}
.cta-band .container{position:relative;z-index:2;}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.cta-band h2{color:#fff;font-size:clamp(21px,2.6vw,28px);line-height:1.35;}
.cta-band .cta-lead{margin-top:14px;font-size:15px;color:rgba(220,239,231,.86);max-width:480px;}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(220,239,231,.9);}
.cta-points span{display:flex;align-items:center;gap:10px;}
.cta-points span::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--accent-500);flex:0 0 6px;}
.form-card{background:#fff;border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-3);}
.form-card h3{font-size:18px;font-weight:600;margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--ink-400);margin-bottom:18px;}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:6px;}
.form-control{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:0 14px;font-size:15px;color:var(--ink-900);background:#fff;
  outline:none;box-shadow:none;transition:border-color 180ms ease,box-shadow 180ms ease;
}
.form-control:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,107,.14);}
textarea.form-control{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-row{margin-bottom:16px;}
.form-note{font-size:12px;color:var(--ink-400);margin-top:12px;line-height:1.7;}
@media (max-width:991px){.cta-grid{grid-template-columns:1fr;gap:32px;}.cta-band{padding:56px 0;}}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--brand-900);color:var(--brand-100);
  padding:80px 0 0;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:-15px;left:0;right:0;height:16px;background:var(--brand-900);
  clip-path:polygon(0 100%,100% 0,100% 100%,0 100%);
}
.footer-col{margin-bottom:32px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(220,239,231,.14);color:#fff;}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:700;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(220,239,231,.78);max-width:340px;}
.site-footer h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.site-footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.site-footer ul li{font-size:14px;color:rgba(220,239,231,.78);}
.site-footer ul a{font-size:14px;color:rgba(220,239,231,.78);}
.site-footer ul a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(220,239,231,.16);padding:20px 0 26px;margin-top:8px;
  font-size:12px;color:rgba(220,239,231,.7);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:16px;bottom:16px;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;box-shadow:var(--sh-2);
  display:grid;place-items:center;cursor:pointer;z-index:1040;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity 200ms ease,transform 200ms ease,visibility 200ms ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{box-shadow:var(--sh-3);transform:translateY(-2px);}
.to-top svg{width:18px;height:18px;stroke:var(--brand-700);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- Bootstrap 覆盖 ---------- */
.btn{border-radius:var(--r-sm);font-weight:600;transition:all 180ms ease;}
.card{border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);background:#fff;}
.navbar{--bs-navbar-padding-y:0;border-radius:0;box-shadow:none;}
.accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-border-radius:0;}

/* roulang page: category2 */
:root{
  --brand-700:#14524A;
  --brand-900:#0C3B35;
  --brand-500:#1E7A6B;
  --brand-100:#DCEFE7;
  --accent-500:#E9902F;
  --accent-100:#FDEDD8;
  --ink-900:#101C1A;
  --ink-600:#4E5F5B;
  --ink-400:#86958F;
  --line:#E2E7E3;
  --bg:#F5F7F4;
  --surface:#FFFFFF;
  --danger:#C0392B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,28,26,.06);
  --sh-2:0 8px 24px rgba(16,28,26,.08);
  --sh-3:0 18px 48px rgba(16,28,26,.12);
  --bs-primary:#14524A;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-color:#4E5F5B;
  --bs-border-radius:12px;
  --bs-link-color:#14524A;
  --bs-link-hover-color:#1E7A6B;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink-900);font-weight:700;letter-spacing:-.01em;margin:0;}
p{margin:0;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-500);}
img{max-width:100%;display:block;}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}

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

/* ============ header / nav ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(1.2) blur(6px);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.scrolled{box-shadow:var(--sh-2);background:rgba(255,255,255,.92);}

.nav-bar{display:flex;align-items:center;gap:20px;height:76px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink-900);}
.brand:hover{color:var(--ink-900);}
.brand-mark{
  width:44px;height:44px;flex:none;
  border-radius:14px;
  background:var(--brand-700);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:Inter,system-ui,sans-serif;
  font-weight:700;font-size:15px;letter-spacing:.02em;
}
.brand-name{display:block;font-size:17px;font-weight:700;line-height:1.25;color:var(--ink-900);}
.brand-sub{display:block;font-size:12px;color:var(--ink-400);line-height:1.4;}

.nav-quick{margin-left:auto;display:flex;align-items:center;gap:22px;font-size:14px;}
.nav-quick a{color:var(--ink-600);}
.nav-quick a:hover{color:var(--brand-700);}

.nav-toggle{
  display:none;
  margin-left:auto;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;}

.nav-lower{display:flex;align-items:center;gap:24px;padding:8px 0 14px;}
.cat-links{display:flex;align-items:center;gap:22px;font-size:15px;flex-wrap:wrap;}
.cat-links a{color:var(--ink-600);padding:6px 0;border-bottom:2px solid transparent;transition:color .18s ease,border-color .18s ease;}
.cat-links a:hover{color:var(--brand-700);}
.cat-links a.active{color:var(--brand-700);font-weight:600;border-bottom-color:var(--brand-700);}

.nav-search{
  position:relative;
  margin-left:auto;
  display:flex;
  align-items:center;
  width:48%;
  max-width:520px;
  height:44px;
  padding:0 6px 0 42px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,107,.14);}
.search-icon{position:absolute;left:14px;width:20px;height:20px;fill:none;stroke:var(--ink-400);stroke-width:1.8;stroke-linecap:round;}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink-900);
}
.nav-search input::placeholder{color:var(--ink-400);}
.nav-search button{
  height:34px;padding:0 18px;border:0;border-radius:var(--r-pill);
  background:var(--accent-500);color:#fff;font-size:14px;font-weight:600;
  transition:background .18s ease,transform .18s ease;
}
.nav-search button:hover{background:#d9821f;}
.nav-search button:active{transform:translateY(1px);}

/* ============ page hero ============ */
.page-hero{
  position:relative;
  min-height:240px;
  display:flex;
  align-items:flex-end;
  padding:44px 0 32px;
  color:#fff;
  background-image:linear-gradient(180deg,rgba(12,59,53,.84),rgba(12,59,53,.93)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 16px),0 100%);
}
.breadcrumb-line{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.75);margin-bottom:12px;}
.breadcrumb-line a{color:rgba(255,255,255,.85);}
.breadcrumb-line a:hover{color:#fff;}
.breadcrumb-line em{font-style:normal;color:#fff;}
.page-hero h1{
  color:#fff;
  font-size:clamp(26px,4vw,40px);
  line-height:1.28;
  max-width:900px;
}
.hero-note{margin-top:14px;font-size:15px;line-height:1.75;color:rgba(255,255,255,.86);max-width:760px;}

/* ============ sections ============ */
.sec{padding:96px 0;}
.sec.surface{background:#fff;}
.sec.tint{background:rgba(220,239,231,.45);}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head h2{display:flex;align-items:center;gap:12px;font-size:clamp(21px,2.6vw,28px);line-height:1.35;}
.sec-head h2::before{content:"";width:4px;height:22px;flex:none;border-radius:2px;background:var(--accent-500);}
.sec-head p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--ink-600);}

/* ============ flow steps ============ */
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.flow-step{
  position:relative;
  padding:24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.flow-step:nth-child(even){background:var(--brand-100);}
.flow-step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.flow-step:not(:last-child)::after{
  content:"";position:absolute;top:44px;right:-24px;width:24px;height:2px;background:var(--line);
}
.step-num{
  width:40px;height:40px;border-radius:12px;
  background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  font-family:Inter,system-ui,sans-serif;font-weight:700;font-size:16px;
  margin-bottom:14px;
}
.flow-step:nth-child(even) .step-num{background:#fff;}
.flow-step h3{font-size:18px;line-height:1.45;margin-bottom:8px;}
.flow-step p{font-size:14px;line-height:1.85;color:var(--ink-600);}

/* ============ timeline ============ */
.timeline{
  position:relative;
  margin:0;
  padding:4px 0 0 34px;
  border-left:2px solid var(--line);
}
.timeline li{position:relative;padding-bottom:34px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:-41px;top:8px;width:12px;height:12px;border-radius:50%;
  background:var(--accent-500);box-shadow:0 0 0 4px #fff;
}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px;}
.tl-head h3{font-size:18px;line-height:1.45;}
.timeline p{font-size:14px;line-height:1.9;color:var(--ink-600);max-width:760px;}

.badge-soft{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:600;white-space:nowrap;
}
.badge-accent{background:var(--accent-100);color:#A85F12;}

/* ============ scene grid ============ */
.scene-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}
.scene-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.scene-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.scene-main .body{padding:26px;}
.scene-main h3{font-size:20px;line-height:1.45;margin-bottom:10px;}
.scene-main p{font-size:15px;line-height:1.85;}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px;}
.metric{background:var(--brand-100);border-radius:var(--r-sm);padding:14px 16px;}
.metric strong{display:block;font-family:Inter,system-ui,sans-serif;font-size:17px;color:var(--brand-700);line-height:1.4;}
.metric span{font-size:12px;color:var(--ink-400);}

.scene-side{display:flex;flex-direction:column;gap:24px;}
.mini-card{
  flex:1;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:24px;
  transition:transform .18s ease,box-shadow .18s ease;
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.mini-card h3{font-size:17px;line-height:1.5;margin:12px 0 8px;}
.mini-card p{font-size:14px;line-height:1.85;}
.mini-foot{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;
}
.mini-foot svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;transition:transform .18s ease;}
.mini-foot:hover svg{transform:translateX(4px);}

/* ============ FAQ ============ */
.faq-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:6px 28px;
}
.accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.accordion-item:last-child{border-bottom:0;}
.accordion-button{
  position:relative;
  padding:18px 44px 18px 14px;
  font-size:16px;font-weight:600;color:var(--ink-900);
  background:transparent;box-shadow:none;
}
.accordion-button:not(.collapsed){color:var(--brand-700);background:transparent;box-shadow:none;}
.accordion-button:focus{box-shadow:none;outline:none;}
.accordion-button::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:18px;border-radius:2px;background:transparent;transition:background .2s ease;
}
.accordion-button:not(.collapsed)::before{background:var(--accent-500);}
.accordion-button::after{
  background-image:none;
  content:"+";
  width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:400;color:var(--brand-700);
  transform:none;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:none;}
.accordion-body{padding:0 44px 20px 14px;font-size:15px;line-height:1.9;color:var(--ink-600);}

/* ============ CTA / form ============ */
.cta-sec{
  position:relative;
  padding:80px 0 88px;
  background:var(--brand-900);
  color:#fff;
  overflow:hidden;
}
.cta-sec::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-sec .row{position:relative;z-index:1;}
.cta-copy h2{color:#fff;font-size:clamp(21px,2.6vw,28px);line-height:1.4;}
.cta-copy p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(220,239,231,.85);max-width:460px;}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(220,239,231,.85);}
.cta-points li::before{content:"";width:6px;height:6px;flex:none;margin-top:9px;border-radius:2px;background:var(--accent-500);}

.form-card{background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:28px;}
.form-card h3{font-size:18px;margin-bottom:18px;}
.form-label{font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:6px;}
.form-control,.form-select{
  height:46px;font-size:15px;color:var(--ink-900);
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;
}
.form-control::placeholder{color:var(--ink-400);}
textarea.form-control{height:auto;min-height:98px;padding-top:12px;resize:vertical;}
.form-control:focus,.form-select:focus{
  border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,107,.14);
}
.btn-submit{
  width:100%;height:48px;border:0;border-radius:var(--r-sm);
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:600;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-submit:hover{background:#d9821f;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-submit:active{transform:translateY(1px);}
.form-note{margin-top:12px;font-size:12px;line-height:1.7;color:var(--ink-400);}

/* ============ footer ============ */
.site-footer{
  position:relative;
  padding:76px 0 24px;
  background:var(--brand-900);
  color:var(--brand-100);
  clip-path:polygon(0 16px,100% 0,100% 100%,0 100%);
}
.footer-col{margin-bottom:28px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--brand-500);}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:700;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(220,239,231,.78);max-width:340px;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-col ul li{font-size:14px;line-height:1.7;color:rgba(220,239,231,.78);margin-bottom:10px;}
.footer-col ul li a{color:rgba(220,239,231,.78);}
.footer-col ul li a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  margin-top:36px;padding-top:18px;
  border-top:1px solid rgba(220,239,231,.18);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12px;color:rgba(220,239,231,.7);
}

/* ============ responsive ============ */
@media (min-width:1400px){
  .container{max-width:1280px !important;}
  .flow-step{padding:28px;}
  .mini-card{padding:28px;}
}

@media (max-width:1199.98px){
  .flow-steps{grid-template-columns:repeat(2,1fr);}
  .flow-step:not(:last-child)::after{display:none;}
}

@media (max-width:991.98px){
  .sec{padding:72px 0;}
  .scene-grid{grid-template-columns:1fr;}
  .scene-main img{aspect-ratio:16/9;}
}

@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .nav-bar{height:60px;}
  .nav-quick{display:none;}
  .nav-toggle{display:flex;}
  .nav-lower{display:none;flex-direction:column;align-items:stretch;gap:12px;padding:12px 0 16px;}
  .nav-lower.open{display:flex;}
  .cat-links{gap:8px 18px;font-size:14px;}
  .nav-search{width:100%;max-width:none;height:42px;margin-left:0;}
  .page-hero{min-height:180px;padding:32px 0 24px;}
  .hero-note{font-size:14px;}
  .sec{padding:56px 0;}
  .sec-head{margin-bottom:28px;}
  .flow-steps{grid-template-columns:1fr;}
  .timeline{padding-left:24px;}
  .timeline li::before{left:-31px;}
  .metrics{grid-template-columns:1fr;}
  .faq-wrap{padding:4px 18px;}
  .accordion-button{font-size:15px;padding:16px 38px 16px 12px;}
  .accordion-body{padding:0 38px 18px 12px;}
  .cta-sec{padding:56px 0 64px;}
  .form-card{padding:20px;}
  .cta-copy{margin-bottom:28px;}
  .site-footer{padding:64px 0 20px;}
  .footer-bottom{justify-content:flex-start;}
}

@media (max-width:575.98px){
  .brand-mark{width:38px;height:38px;border-radius:12px;font-size:13px;}
  .brand-name{font-size:15px;}
  .brand-sub{font-size:11px;}
  .flow-step{padding:18px;}
  .scene-main .body,.mini-card{padding:18px;}
  .nav-search button{padding:0 14px;}
}

/* roulang page: category3 */
:root{
  --brand-700:#14524A;
  --brand-900:#0C3B35;
  --brand-500:#1E7A6B;
  --brand-100:#DCEFE7;
  --accent-500:#E9902F;
  --accent-100:#FDEDD8;
  --accent-700:#A85F12;
  --ink-900:#101C1A;
  --ink-600:#4E5F5B;
  --ink-400:#86958F;
  --line:#E2E7E3;
  --bg:#F5F7F4;
  --surface:#FFFFFF;
  --danger:#C0392B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,28,26,.06);
  --sh-2:0 8px 24px rgba(16,28,26,.08);
  --sh-3:0 18px 48px rgba(16,28,26,.12);

  --bs-primary:#14524A;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-color:#4E5F5B;
  --bs-border-radius:12px;
  --bs-border-color:#E2E7E3;
  --bs-link-color:#14524A;
  --bs-link-hover-color:#1E7A6B;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-600);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.7;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{color:var(--ink-900);font-weight:700;letter-spacing:-.01em;margin:0}
h1{font-size:clamp(26px,4vw,40px);line-height:1.28}
h2{font-size:clamp(21px,2.6vw,28px);line-height:1.35}
h3{font-size:18px;line-height:1.45;font-weight:600}
p{margin:0 0 18px}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease}
a:hover{color:var(--brand-500)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%}
@media (min-width:1400px){.container{max-width:1280px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,background-color .2s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-2);background:rgba(255,255,255,.96)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink-900)}
.brand:hover{color:var(--ink-900)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-md);
  background:var(--brand-700);color:#fff;
  font-weight:700;font-size:15px;letter-spacing:.02em;
  font-family:"Inter","Noto Sans SC",system-ui,sans-serif;
  flex:0 0 auto;
}
.brand-name{display:block;font-size:17px;font-weight:700;line-height:1.25;color:var(--ink-900)}
.brand-sub{display:block;font-size:12px;color:var(--ink-400);line-height:1.4}
.nav-quick{display:flex;align-items:center;gap:26px}
.nav-quick a{font-size:15px;color:var(--ink-600);position:relative;padding:6px 0}
.nav-quick a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-quick a:hover{color:var(--brand-700)}
.nav-quick a:hover::after{transform:scaleX(1)}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:40px;padding:0 10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  cursor:pointer;
}
.nav-toggle span{display:block;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.nav-lower{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:64px;border-top:1px solid var(--line);
}
.cat-links{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.cat-links a{
  font-size:15px;color:var(--ink-600);padding:8px 0;position:relative;white-space:nowrap;
}
.cat-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:var(--brand-700);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.cat-links a:hover{color:var(--brand-700)}
.cat-links a:hover::after{transform:scaleX(1)}
.cat-links a.active{color:var(--brand-700);font-weight:600}
.cat-links a.active::after{transform:scaleX(1)}
.nav-search{
  position:relative;display:flex;align-items:center;
  width:48%;max-width:520px;min-width:280px;height:44px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:0 4px 0 40px;transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,107,.14)}
.search-icon{position:absolute;left:14px;width:20px;height:20px;fill:none;stroke:var(--ink-400);stroke-width:1.8;stroke-linecap:round}
.nav-search input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink-900);
}
.nav-search input::placeholder{color:var(--ink-400)}
.nav-search button{
  flex:0 0 auto;height:36px;padding:0 20px;border:0;border-radius:var(--r-pill);
  background:var(--accent-500);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .18s ease,opacity .18s ease;
}
.nav-search button:hover{background:#d9812a}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:240px;display:flex;align-items:center;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 26px),0 100%);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(12,59,53,.94) 0%,rgba(12,59,53,.80) 58%,rgba(20,82,74,.66) 100%);
}
.cat-hero .container{position:relative;z-index:2;padding-top:48px;padding-bottom:56px}
.breadcrumb-line{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(220,239,231,.78);margin-bottom:12px;flex-wrap:wrap}
.breadcrumb-line a{color:rgba(220,239,231,.86)}
.breadcrumb-line a:hover{color:#fff}
.breadcrumb-line .sep{opacity:.55}
.breadcrumb-line .current{color:#fff}
.cat-hero h1{color:#fff;max-width:900px}
.cat-hero .hero-note{
  color:rgba(220,239,231,.9);font-size:15px;line-height:1.75;
  margin:14px 0 0;max-width:720px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-tags span{
  display:inline-flex;align-items:center;height:26px;padding:0 14px;
  border-radius:var(--r-pill);font-size:12px;color:#fff;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.sec-white{background:#fff}
.sec-mint{background:rgba(220,239,231,.45)}
.sec-dark{background:var(--brand-900);color:rgba(220,239,231,.86);position:relative;overflow:hidden}
.sec-dark::after{
  content:"";position:absolute;right:-140px;top:-80px;width:420px;height:420px;
  background:
     repeating-linear-gradient(0deg,rgba(220,239,231,.10) 0 1px,transparent 1px 28px),
     repeating-linear-gradient(90deg,rgba(220,239,231,.10) 0 1px,transparent 1px 28px);
  transform:rotate(12deg);pointer-events:none;
}
.sec-dark h2,.sec-dark h3{color:#fff}

.sec-head{margin-bottom:36px}
.sec-head-flex{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.sec-head h2{position:relative;padding-left:16px}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--accent-500);
}
.sec-head .sec-desc{margin:12px 0 0;font-size:15px;color:var(--ink-600);max-width:760px}
.more-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);white-space:nowrap}
.more-link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .18s ease}
.more-link:hover svg{transform:translateX(4px)}

/* ---------- anchor tabs ---------- */
.anchor-bar{
  background:#fff;border-bottom:1px solid var(--line);
  padding:16px 0;
}
.anchor-tabs{display:flex;flex-wrap:wrap;gap:10px}
.anchor-tabs a{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;
  font-size:14px;color:var(--ink-600);
}
.anchor-tabs a:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-100)}
.anchor-tabs a.is-key{background:var(--accent-100);border-color:var(--accent-100);color:var(--accent-700);font-weight:600}

/* ---------- faq accordion ---------- */
.faq-group-name{
  font-size:14px;font-weight:600;color:var(--brand-700);
  display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;
}
.faq-group-name i{
  width:8px;height:8px;border-radius:2px;background:var(--accent-500);display:inline-block;
}
.faq-acc{border:0}
.faq-acc .accordion-item{
  border:0;border-bottom:1px solid var(--line);background:transparent;border-radius:0;
}
.faq-acc .accordion-item:first-of-type{border-top:1px solid var(--line)}
.faq-acc .accordion-header{margin:0}
.faq-acc .accordion-button{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:18px 2px 18px 14px;background:transparent;border:0;box-shadow:none;
  font-size:16px;font-weight:600;color:var(--ink-900);text-align:left;
  border-left:3px solid transparent;border-radius:0;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.faq-acc .accordion-button:hover{color:var(--brand-700);background:rgba(220,239,231,.35)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--accent-500);outline-offset:2px}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand-700);border-left-color:var(--accent-500);background:rgba(220,239,231,.32);
}
.faq-acc .accordion-button::after{display:none}
.faq-toggle{
  position:relative;flex:0 0 auto;width:24px;height:24px;border-radius:var(--r-sm);
  background:var(--brand-100);color:var(--brand-700);
}
.faq-toggle::before,.faq-toggle::after{
  content:"";position:absolute;background:currentColor;border-radius:1px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-toggle::before{width:12px;height:2px;top:11px;left:6px}
.faq-toggle::after{width:2px;height:12px;top:6px;left:11px}
.faq-acc .accordion-button:not(.collapsed) .faq-toggle::after{transform:scaleY(0);opacity:0}
.faq-acc .accordion-body{
  padding:2px 2px 22px 17px;font-size:14px;line-height:1.85;color:var(--ink-600);
}
.faq-acc .accordion-body p{margin:0;max-width:700px}

/* ---------- checklist block ---------- */
.check-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;height:100%;
  transition:box-shadow .2s ease,transform .2s ease;
}
.check-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.check-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.check-card .check-body{padding:24px}
.check-list li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0}
.check-list .num{
  flex:0 0 auto;width:26px;height:26px;border-radius:var(--r-sm);
  background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;
}
.check-list h3{font-size:15px;margin-bottom:4px}
.check-list p{margin:0;font-size:14px;line-height:1.8}
.side-note{
  background:var(--brand-100);border-radius:var(--r-md);padding:22px;height:100%;
  border-left:3px solid var(--brand-700);
}
.side-note h3{font-size:16px;margin-bottom:10px}
.side-note p{font-size:14px;margin-bottom:12px}
.side-note p:last-child{margin-bottom:0}

/* ---------- quick entry cards ---------- */
.entry-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.entry-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--brand-100)}
.entry-card .badge-soft{margin-bottom:14px}
.entry-card h3{font-size:18px;margin-bottom:10px}
.entry-card p{font-size:14px;line-height:1.8;margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.entry-card .entry-foot{margin-top:auto}
.badge-soft{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:600;
}
.badge-warm{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--accent-100);color:var(--accent-700);font-size:12px;font-weight:600;
}

/* ---------- buttons ---------- */
.btn-main,.btn-line,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-sm);font-size:15px;font-weight:600;
  cursor:pointer;border:1.5px solid transparent;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
}
.btn-main{background:var(--accent-500);color:#fff;box-shadow:var(--sh-1)}
.btn-main:hover{background:#d9812a;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(1px)}
.btn-line{background:#fff;border-color:var(--brand-700);color:var(--brand-700)}
.btn-line:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-2px)}
.btn-line:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}

/* ---------- cta / form ---------- */
.cta-panel{
  position:relative;z-index:2;background:rgba(255,255,255,.06);
  border:1px solid rgba(220,239,231,.22);border-radius:var(--r-lg);
  padding:28px;backdrop-filter:none;
}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px}
.form-label.on-dark{color:#fff}
.form-control-c{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;color:var(--ink-900);
  outline:none;transition:border-color .18s ease,box-shadow .18s ease;
}
textarea.form-control-c{height:auto;padding:12px 14px;resize:vertical;min-height:96px}
.form-control-c:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,107,.14)}
.form-control-c::placeholder{color:var(--ink-400)}
.form-row{margin-bottom:16px}
.privacy-note{font-size:12px;color:var(--ink-400);margin:12px 0 0;line-height:1.7}
.privacy-note.on-dark{color:rgba(220,239,231,.72)}

/* ---------- footer ---------- */
.site-footer{
  position:relative;background:var(--brand-900);color:var(--brand-100);
  padding:72px 0 0;margin-top:0;
  clip-path:polygon(0 16px,100% 0,100% 100%,0 100%);
}
.site-footer .footer-col{margin-bottom:32px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--brand-500)}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:700;display:block;line-height:1.3}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(220,239,231,.8);max-width:340px;margin:0}
.site-footer h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.site-footer ul li{font-size:14px;color:rgba(220,239,231,.82);line-height:2.1}
.site-footer ul li a{color:rgba(220,239,231,.82)}
.site-footer ul li a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:24px;padding:18px 0;border-top:1px solid rgba(220,239,231,.18);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(220,239,231,.7);
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .container{max-width:100%}
  .nav-search{width:42%;min-width:240px}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .nav-bar{height:64px}
  .nav-quick{display:none}
  .nav-toggle{display:flex;order:3}
  .brand-mark{width:40px;height:40px;font-size:14px}
  .nav-lower{
    display:none;flex-direction:column;align-items:stretch;gap:14px;
    height:auto;padding:16px 0 20px;
  }
  .nav-lower.open{display:flex}
  .cat-links{flex-direction:column;align-items:flex-start;gap:0}
  .cat-links a{display:block;width:100%;padding:12px 0;border-bottom:1px solid var(--line)}
  .cat-links a::after{display:none}
  .cat-links a.active{border-left:3px solid var(--accent-500);padding-left:10px}
  .nav-search{width:100%;min-width:0;height:42px;padding-left:38px}
  .nav-search input{font-size:14px}
  .nav-search input::placeholder{color:transparent}
  .nav-search input::placeholder{content:""}
  .cat-hero{min-height:220px;clip-path:none}
  .cat-hero .container{padding-top:36px;padding-bottom:40px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .container{padding-left:20px;padding-right:20px}
  .cat-hero{min-height:180px}
  .faq-acc .accordion-button{font-size:15px;padding:16px 2px 16px 12px}
  .entry-card,.check-card .check-body{padding:20px}
  .sec-head-flex{flex-direction:column;align-items:flex-start;gap:12px}
  .site-footer{padding-top:56px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .brand-sub{display:none}
  .btn-main,.btn-line,.btn-ghost{width:100%}
  .hero-tags span{font-size:11px;padding:0 10px}
  .anchor-tabs a{height:34px;padding:0 14px;font-size:13px}
}

/* roulang page: category4 */
:root{
  --brand-700:#14524A;
  --brand-900:#0C3B35;
  --brand-500:#1E7A6B;
  --brand-100:#DCEFE7;
  --accent-500:#E9902F;
  --accent-100:#FDEDD8;
  --accent-ink:#A85F12;
  --ink-900:#101C1A;
  --ink-600:#4E5F5B;
  --ink-400:#86958F;
  --line:#E2E7E3;
  --bg:#F5F7F4;
  --surface:#FFFFFF;
  --danger:#C0392B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,28,26,.06);
  --sh-2:0 8px 24px rgba(16,28,26,.08);
  --sh-3:0 18px 48px rgba(16,28,26,.12);
  --bs-primary:#14524A;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-border-radius:12px;
  --bs-link-color:#14524A;
  --bs-link-hover-color:#1E7A6B;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-600);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.7;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:-0.01em;}
h1{font-size:clamp(26px,4vw,40px);line-height:1.28;font-weight:700;}
h2{font-size:clamp(21px,2.6vw,28px);line-height:1.35;font-weight:700;}
h3{font-size:18px;line-height:1.45;font-weight:600;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-500);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.container{max-width:1280px;}}
@media (max-width:991px){.container{padding:0 20px;}}
@media (max-width:575px){.container{padding:0 16px;}}

/* ---------- 按钮 ---------- */
.btn-main,.btn-line,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;font-size:15px;font-weight:600;line-height:1.2;
  border-radius:var(--r-sm);cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease;
}
.btn-main{background:var(--accent-500);color:#FFFFFF;box-shadow:var(--sh-1);}
.btn-main:hover{background:#D9831F;color:#FFFFFF;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-main:active{transform:translateY(-1px);}
.btn-line{background:var(--surface);color:var(--brand-700);border:1.5px solid var(--brand-700);}
.btn-line:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-900);}
.btn-main:disabled,.btn-line:disabled,.btn-ghost:disabled{opacity:.55;cursor:not-allowed;transform:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);background:var(--brand-100);color:var(--brand-700);
  font-size:12px;font-weight:600;white-space:nowrap;
}
.badge-tag.alt{background:var(--accent-100);color:var(--accent-ink);}
.badge-tag.plain{background:#EFF3F1;color:var(--ink-600);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,background-color .2s ease;
}
.site-header.scrolled{box-shadow:var(--sh-2);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink-900);}
.brand:hover{color:var(--ink-900);}
.brand-mark{
  display:flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:var(--r-md);
  background:var(--brand-700);color:#FFFFFF;font-weight:700;font-size:17px;letter-spacing:.02em;
}
.brand-name{display:block;font-size:17px;font-weight:700;line-height:1.25;color:var(--ink-900);}
.brand-sub{display:block;font-size:12px;color:var(--ink-400);letter-spacing:.02em;}
.nav-quick{display:flex;align-items:center;gap:22px;}
.nav-quick a{font-size:15px;color:var(--ink-600);padding:6px 0;}
.nav-quick a:hover{color:var(--brand-700);}
.nav-quick a:last-child{color:var(--brand-700);font-weight:600;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-700);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-lower{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  height:64px;border-top:1px solid var(--line);
}
.cat-links{display:flex;align-items:center;gap:22px;flex-wrap:wrap;}
.cat-links a{
  position:relative;font-size:15px;color:var(--ink-600);padding:8px 0;
}
.cat-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--accent-500);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.cat-links a:hover{color:var(--brand-700);}
.cat-links a:hover::after{transform:scaleX(1);}
.cat-links a.active{color:var(--brand-700);font-weight:600;}
.cat-links a.active::after{transform:scaleX(1);}
.nav-search{
  position:relative;display:flex;align-items:center;
  width:48%;max-width:520px;height:44px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:0 4px 0 14px;transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,107,.14);}
.search-icon{width:20px;height:20px;flex:0 0 20px;stroke:var(--ink-400);stroke-width:1.8;fill:none;stroke-linecap:round;}
.nav-search input{
  flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink-900);padding:0 10px;
}
.nav-search input::placeholder{color:var(--ink-400);}
.nav-search button{
  flex:0 0 auto;height:36px;padding:0 20px;border:0;border-radius:var(--r-pill);
  background:var(--accent-500);color:#FFFFFF;font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .18s ease;
}
.nav-search button:hover{background:#D9831F;}
@media (max-width:991px){
  .nav-bar{height:60px;}
  .brand-mark{width:40px;height:40px;font-size:15px;}
  .brand-name{font-size:15px;}
  .brand-sub{display:none;}
  .nav-quick{display:none;}
  .nav-toggle{display:flex;}
  .nav-lower{
    display:none;height:auto;flex-direction:column;align-items:stretch;gap:14px;
    padding:14px 0 20px;border-top:1px solid var(--line);
  }
  .nav-lower.open{display:flex;}
  .cat-links{flex-direction:column;align-items:flex-start;gap:0;}
  .cat-links a{width:100%;padding:11px 0;border-bottom:1px solid var(--line);}
  .cat-links a::after{display:none;}
  .cat-links a.active{color:var(--brand-700);}
  .nav-search{width:100%;max-width:none;height:42px;}
  .nav-search input{font-size:14px;}
}

/* ---------- 内页 hero ---------- */
.page-hero{
  position:relative;overflow:hidden;background:var(--brand-900);
  min-height:240px;display:flex;align-items:center;padding:44px 0;
}
.page-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.9;}
.page-hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(12,59,53,.94) 0%,rgba(12,59,53,.82) 52%,rgba(12,59,53,.62) 100%);
}
.page-hero-inner{position:relative;z-index:2;max-width:820px;}
.page-hero h1{color:#FFFFFF;margin-bottom:10px;}
.hero-lead{font-size:15px;line-height:1.75;color:rgba(220,239,231,.88);margin:0;max-width:700px;}
.breadcrumb-line{display:flex;align-items:center;gap:8px;font-size:13px;margin-bottom:12px;color:rgba(220,239,231,.72);}
.breadcrumb-line a{color:rgba(220,239,231,.9);}
.breadcrumb-line a:hover{color:#FFFFFF;text-decoration:underline;}
.breadcrumb-line em{font-style:normal;color:#FFFFFF;font-weight:600;}
@media (max-width:767px){
  .page-hero{min-height:180px;padding:32px 0;}
  .hero-lead{font-size:14px;}
}

/* ---------- 数据条 ---------- */
.stat-strip{background:var(--surface);border-bottom:1px solid var(--line);}
.stat-row{display:flex;flex-wrap:wrap;}
.stat-item{
  flex:1 1 25%;min-width:160px;padding:20px 24px;border-left:1px solid var(--line);
}
.stat-item:first-child{border-left:0;}
.stat-num{font-family:Inter,system-ui,sans-serif;font-size:22px;font-weight:700;color:var(--brand-700);display:block;line-height:1.3;}
.stat-label{font-size:13px;color:var(--ink-400);}
@media (max-width:767px){
  .stat-item{flex:1 1 50%;border-left:0;border-top:1px solid var(--line);padding:16px;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-top:0;}
}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section.tint{background:rgba(220,239,231,.45);}
.section.white{background:var(--surface);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{margin-bottom:10px;position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:8px;width:6px;height:20px;border-radius:3px;background:var(--accent-500);
}
.section-head p{font-size:15px;color:var(--ink-600);}
@media (max-width:991px){.section{padding:72px 0;}}
@media (max-width:575px){.section{padding:56px 0;}}

/* ---------- 筛选标签 ---------- */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.filter-chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:var(--surface);
  font-size:14px;color:var(--ink-600);transition:all .18s ease;
}
.filter-chip:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-100);}
.filter-chip.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#FFFFFF;font-weight:600;}

/* ---------- 资源行列表 ---------- */
.resource-list{border-top:1px solid var(--line);}
.resource-row{
  display:flex;align-items:flex-start;gap:20px;
  padding:22px 18px;border-bottom:1px solid var(--line);
  transition:background-color .18s ease,box-shadow .18s ease,padding-left .18s ease;
}
.resource-row:hover{background:var(--brand-100);padding-left:24px;}
.resource-row:hover .res-arrow{transform:translateX(4px);color:var(--accent-500);}
.res-index{
  flex:0 0 46px;font-family:Inter,system-ui,sans-serif;font-size:18px;font-weight:700;
  color:var(--brand-700);background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-sm);text-align:center;line-height:36px;height:38px;
}
.res-main{flex:1 1 auto;min-width:0;}
.res-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:6px;}
.res-title{font-size:17px;font-weight:600;color:var(--ink-900);}
.res-desc{font-size:14px;color:var(--ink-600);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.res-arrow{
  flex:0 0 auto;align-self:center;color:var(--ink-400);display:inline-flex;align-items:center;
  transition:transform .18s ease,color .18s ease;
}
.res-arrow svg{width:20px;height:20px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;}
@media (max-width:575px){
  .resource-row{gap:12px;padding:18px 4px;}
  .resource-row:hover{padding-left:4px;}
  .res-index{flex:0 0 40px;font-size:16px;line-height:30px;height:32px;}
  .res-title{font-size:16px;}
}

/* ---------- 图文区块 ---------- */
.media-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);}
.media-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);}
.media-body h2{padding-left:16px;position:relative;margin-bottom:14px;}
.media-body h2::before{content:"";position:absolute;left:0;top:7px;width:6px;height:22px;border-radius:3px;background:var(--accent-500);}
.media-body p{font-size:16px;line-height:1.85;max-width:760px;}
.check-list{margin:20px 0 26px;}
.check-list li{position:relative;padding-left:24px;margin-bottom:12px;font-size:15px;color:var(--ink-600);}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--accent-500);
}
.check-list li strong{color:var(--ink-900);font-weight:600;}

/* ---------- 快捷入口卡 ---------- */
.entry-card{
  display:flex;align-items:center;gap:16px;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-500);}
.entry-icon{
  flex:0 0 44px;height:44px;border-radius:var(--r-sm);background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-family:Inter,system-ui,sans-serif;
}
.entry-text h3{font-size:16px;margin-bottom:4px;}
.entry-text p{font-size:13px;color:var(--ink-400);margin:0;}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.faq-accordion .accordion-item:first-child{border-top:1px solid var(--line);}
.faq-accordion .accordion-button{
  position:relative;background:transparent;box-shadow:none;
  padding:18px 48px 18px 16px;font-size:16px;font-weight:600;color:var(--ink-900);
  border-radius:0;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand-700);border-left:3px solid var(--accent-500);background:rgba(220,239,231,.35);
}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--accent-500);outline-offset:-2px;}
.faq-accordion .accordion-button::after{display:none;}
.faq-accordion .accordion-button::before{
  content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:600;color:var(--accent-500);line-height:1;
}
.faq-accordion .accordion-button:not(.collapsed)::before{content:"−";}
.faq-accordion .accordion-body{padding:4px 24px 22px 16px;font-size:15px;line-height:1.85;color:var(--ink-600);}

/* ---------- CTA ---------- */
.cta-panel{
  background:var(--brand-900);border-radius:var(--r-lg);overflow:hidden;
  padding:44px;position:relative;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(220,239,231,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(220,239,231,.06) 1px,transparent 1px);
  background-size:36px 36px;pointer-events:none;
}
.cta-inner{position:relative;z-index:2;}
.cta-copy h2{color:#FFFFFF;margin-bottom:14px;}
.cta-copy p{color:rgba(220,239,231,.82);font-size:15px;line-height:1.8;}
.cta-points{margin-top:20px;}
.cta-points li{position:relative;padding-left:20px;font-size:14px;color:rgba(220,239,231,.8);margin-bottom:10px;}
.cta-points li::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:2px;background:var(--accent-500);}
.form-card{background:var(--surface);border-radius:var(--r-md);padding:26px;box-shadow:var(--sh-3);}
.form-card h3{font-size:18px;margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--ink-400);margin-bottom:18px;}
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:6px;}
.form-field .form-control{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:0 14px;font-size:15px;color:var(--ink-900);background:var(--surface);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.form-field textarea.form-control{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-field .form-control::placeholder{color:var(--ink-400);}
.form-field .form-control:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,107,.14);outline:none;}
.form-privacy{font-size:12px;color:var(--ink-400);margin:12px 0 0;}
.form-card .btn-main{width:100%;}
@media (max-width:767px){
  .cta-panel{padding:26px 20px;}
  .form-card{padding:20px;margin-top:24px;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:0;background:var(--brand-900);color:var(--brand-100);padding:72px 0 0;
}
.site-footer::before{
  content:"";position:absolute;top:-16px;left:0;right:0;height:16px;background:var(--brand-900);
  clip-path:polygon(0 100%,100% 0,100% 100%);
}
.footer-col{margin-bottom:32px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(220,239,231,.14);color:#FFFFFF;}
.footer-brand .brand-name{color:#FFFFFF;font-size:17px;font-weight:700;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(220,239,231,.72);max-width:340px;}
.footer-col h4{font-size:14px;font-weight:600;color:#FFFFFF;margin-bottom:16px;}
.footer-col ul li{font-size:14px;color:rgba(220,239,231,.72);margin-bottom:10px;}
.footer-col ul li a{color:rgba(220,239,231,.72);}
.footer-col ul li a:hover{color:#FFFFFF;text-decoration:underline;}
.footer-bottom{
  border-top:1px solid rgba(220,239,231,.18);
  padding:20px 0 26px;margin-top:8px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:rgba(220,239,231,.7);
}
@media (max-width:575px){
  .site-footer{padding-top:56px;}
  .footer-bottom{flex-direction:column;}
}