/* roulang page: index */
:root{
  --brand:#0E5A5A;
  --brand-dark:#0B3C3C;
  --accent:#E07A3F;
  --jade:#DCE8E4;
  --bg:#F6F7F5;
  --ink:#1C1F1D;
  --ink-2:#5A625E;
  --line:rgba(14,90,90,0.12);
  --radius-card:14px;
  --radius-btn:999px;
  --radius-input:10px;
  --shadow:0 8px 24px rgba(14,90,90,0.08);
  --shadow-hover:0 12px 32px rgba(14,90,90,0.14);
  --gap-section:96px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px;}
a{color:var(--brand);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{font-weight:700;line-height:1.25;margin:0 0 16px;color:var(--ink);letter-spacing:.2px;}
h1{font-size:48px;}
h2{font-size:33px;}
h3{font-size:21px;font-weight:600;}
p{margin:0 0 16px;color:var(--ink-2);}
ul,ol{margin:0 0 16px;padding-left:20px;color:var(--ink-2);}
li{margin-bottom:8px;}
button,input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}

/* ===== 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(150%) blur(8px);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  background:linear-gradient(150deg,var(--brand) 0%,#14706F 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--ink);}
.brand-text span{font-size:12px;color:var(--ink-2);letter-spacing:3px;}
.nav-menu{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0;}
.nav-menu li{margin:0;}
.nav-menu a{
  display:inline-block;padding:8px 14px;border-radius:var(--radius-btn);
  font-size:15px;color:var(--ink-2);position:relative;
}
.nav-menu a:hover{color:var(--brand);background:var(--jade);}
.nav-menu a.active{color:var(--brand);font-weight:600;background:var(--jade);}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 22px;border-radius:var(--radius-btn);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 6px 18px rgba(14,90,90,.18);
}
.nav-cta:hover{background:var(--accent);color:#fff;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;color:var(--brand);font-size:20px;line-height:1;
}
.nav-drawer{
  display:none;position:fixed;inset:72px 0 0 0;background:#fff;z-index:1025;
  padding:24px;overflow-y:auto;
}
.nav-drawer.open{display:block;}
.nav-drawer ul{list-style:none;padding:0;margin:0 0 24px;}
.nav-drawer li{margin-bottom:6px;}
.nav-drawer a{
  display:block;padding:16px 18px;border-radius:var(--radius-card);
  font-size:19px;font-weight:600;color:var(--ink);border:1px solid var(--line);
}
.nav-drawer a.active{background:var(--jade);color:var(--brand);border-color:transparent;}
.nav-drawer .drawer-cta{
  display:block;text-align:center;padding:16px;border-radius:var(--radius-btn);
  background:var(--brand);color:#fff;font-weight:600;font-size:17px;
}

/* ===== hero ===== */
.hero{
  position:relative;min-height:520px;display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#fff;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(11,60,60,.92) 0%,rgba(11,60,60,.78) 45%,rgba(11,60,60,.45) 100%);
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;
  border-radius:50%;border:1px solid rgba(220,232,228,.18);
  box-shadow:0 0 0 60px rgba(220,232,228,.05);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;padding-top:72px;padding-bottom:72px;}
.hero-tag{
  display:inline-block;padding:5px 14px;border-radius:var(--radius-btn);
  background:rgba(220,232,228,.18);border:1px solid rgba(220,232,228,.35);
  color:#EAF3F0;font-size:13px;letter-spacing:1px;margin-bottom:20px;
}
.hero h1{
  color:#fff;font-size:48px;max-width:760px;margin-bottom:18px;
  text-shadow:0 2px 12px rgba(0,0,0,.18);
}
.hero-sub{
  color:#DCE8E4;font-size:19px;max-width:620px;line-height:1.7;margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:var(--radius-btn);font-size:16px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .25s ease;line-height:1;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(14,90,90,.22);}
.btn-primary:hover{background:var(--accent);color:#fff;box-shadow:0 12px 28px rgba(224,122,63,.28);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(220,232,228,.6);}
.btn-ghost:hover{background:var(--accent);border-color:var(--accent);color:#fff;}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:transparent;color:var(--accent);border-color:var(--accent);}
.btn-sm{padding:10px 22px;font-size:14px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:36px;}
.hero-fact strong{display:block;font-size:26px;color:#fff;font-weight:700;}
.hero-fact span{font-size:13px;color:#BFD6D2;letter-spacing:.5px;}

/* ===== sections ===== */
main{display:block;}
.section{padding:var(--gap-section) 0;}
.section--tight{padding:64px 0;}
.section--jade{background:var(--jade);}
.section--dark{background:var(--brand-dark);color:#fff;}
.section--dark h2,.section--dark h3{color:#fff;}
.section--dark p{color:#C7DAD6;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:2px;color:var(--accent);
  font-weight:600;margin-bottom:12px;text-transform:uppercase;
}
.section-head h2{position:relative;padding-bottom:14px;}
.section-head h2::after{
  content:"";position:absolute;left:0;bottom:0;width:56px;height:3px;
  background:var(--accent);border-radius:3px;
}
.section-head.center h2::after{left:50%;transform:translateX(-50%);}
.section-head p{margin-bottom:0;font-size:17px;}

/* ===== 信任条 ===== */
.trust-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);overflow:hidden;margin-top:-56px;position:relative;z-index:5;
}
.trust-item{padding:28px 24px;border-right:1px solid var(--line);}
.trust-item:last-child{border-right:0;}
.trust-item strong{display:block;font-size:24px;color:var(--brand);margin-bottom:6px;}
.trust-item span{font-size:14px;color:var(--ink-2);}

/* ===== timeline ===== */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:20px;}
.timeline::before{
  content:"";position:absolute;left:24px;right:24px;top:21px;height:2px;
  background:var(--jade);
}
.tl-node{position:relative;padding-top:56px;}
.tl-node::before{
  content:"";position:absolute;top:12px;left:24px;width:18px;height:18px;border-radius:50%;
  background:var(--accent);border:4px solid #fff;box-shadow:0 0 0 1px var(--jade);
}
.tl-node h3{font-size:18px;margin-bottom:8px;}
.tl-node p{font-size:14px;margin:0;line-height:1.7;}
.tl-num{
  display:block;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:1px;margin-bottom:6px;
}

/* ===== feature cards ===== */
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow);height:100%;
  display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.feature-card:hover h3{color:var(--accent);}
.feature-card img{width:100%;height:170px;object-fit:cover;border-radius:0;}
.feature-card .fc-body{padding:22px 24px;flex:1;display:flex;flex-direction:column;}
.feature-card h3{margin-bottom:10px;transition:color .25s ease;}
.feature-card p{font-size:14px;margin-bottom:0;}
.feature-card--tall img{height:300px;}
.feature-card--tall .fc-body{padding:28px 30px;}
.feature-card--tall h3{font-size:24px;}
.feature-card--tall p{font-size:15px;}

/* ===== badges ===== */
.badge-pill{
  display:inline-block;padding:4px 10px;border-radius:var(--radius-btn);
  background:var(--jade);color:var(--brand);font-size:12px;font-weight:600;
  letter-spacing:.5px;line-height:1.6;
}
.badge-pill--accent{background:var(--accent);color:#fff;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* ===== plan compare ===== */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.plan{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px 28px;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.plan:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.plan.recommend{background:var(--jade);border-color:rgba(14,90,90,.22);position:relative;}
.plan.recommend::before{
  content:"推荐";position:absolute;top:-13px;left:28px;
  background:var(--accent);color:#fff;font-size:12px;font-weight:600;
  padding:4px 14px;border-radius:var(--radius-btn);letter-spacing:1px;
}
.plan h3{font-size:20px;margin-bottom:6px;}
.plan .plan-desc{font-size:14px;color:var(--ink-2);margin-bottom:18px;min-height:44px;}
.plan .price{font-size:26px;font-weight:700;color:var(--brand);margin-bottom:20px;}
.plan .price small{font-size:13px;font-weight:400;color:var(--ink-2);margin-left:6px;}
.plan ul{list-style:none;padding:0;margin:0 0 26px;font-size:14px;}
.plan li{padding-left:24px;position:relative;margin-bottom:10px;color:var(--ink-2);}
.plan li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  background:var(--brand);opacity:.65;
}
.plan.recommend li::before{background:var(--accent);opacity:1;}
.plan .btn{margin-top:auto;width:100%;}

/* ===== CTA form ===== */
.cta-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.cta-copy h2{color:#fff;}
.cta-copy p{color:#C7DAD6;font-size:17px;}
.cta-list{list-style:none;padding:0;margin:0;}
.cta-list li{padding-left:26px;position:relative;color:#DCE8E4;margin-bottom:10px;font-size:15px;}
.cta-list li::before{
  content:"";position:absolute;left:0;top:10px;width:10px;height:10px;border-radius:50%;
  background:var(--accent);
}
.form-card{
  background:#fff;border-radius:18px;padding:34px 32px;box-shadow:0 18px 48px rgba(0,0,0,.18);
}
.form-card h3{margin-bottom:6px;}
.form-card .form-hint{font-size:14px;color:var(--ink-2);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--radius-input);
  border:1px solid var(--line);background:#FBFCFB;color:var(--ink);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.6;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(224,122,63,.14);
}
.field input::placeholder,.field textarea::placeholder{color:#9AA5A0;}
.form-note{font-size:13px;color:var(--accent);margin:12px 0 0;min-height:20px;}

/* ===== news / cms list ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;height:100%;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.news-card:hover h3 a{color:var(--accent);}
.news-card h3{font-size:18px;margin-bottom:10px;}
.news-card h3 a{color:var(--ink);}
.news-card p{font-size:14px;line-height:1.7;margin-bottom:18px;}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:var(--ink-2);border-top:1px solid var(--line);padding-top:14px;
}
.empty-state{
  grid-column:1/-1;text-align:center;padding:48px 24px;border:1px dashed var(--line);
  border-radius:var(--radius-card);background:#fff;color:var(--ink-2);
}

/* ===== FAQ ===== */
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card)!important;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow);
}
.faq-accordion .accordion-button{
  background:#fff;color:var(--ink);font-size:17px;font-weight:600;
  padding:20px 24px;box-shadow:none;border:0;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--accent);background:#fff;}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 2px rgba(224,122,63,.35);border:0;}
.faq-accordion .accordion-button::after{
  transition:transform .3s ease;background-image:none;content:"+";
  font-size:22px;font-weight:400;line-height:1;color:var(--brand);
  display:flex;align-items:center;justify-content:center;width:22px;height:22px;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);color:var(--accent);content:"–";
}
.faq-accordion .accordion-body{
  padding:4px 24px 24px;color:var(--ink-2);line-height:1.7;max-width:780px;font-size:15px;
}

/* ===== footer ===== */
.site-footer{background:var(--brand-dark);color:#C7DAD6;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-mark{background:rgba(220,232,228,.14);color:#fff;}
.footer-brand strong{display:block;color:#fff;font-size:17px;margin:14px 0 10px;}
.footer-brand p{color:#9FB8B4;font-size:14px;line-height:1.75;max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.5px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#9FB8B4;font-size:14px;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(220,232,228,.14);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8AA5A1;
}
.footer-bottom a{color:#8AA5A1;}
.footer-bottom a:hover{color:var(--accent);}

/* ===== responsive ===== */
@media (max-width:1199px){
  h1{font-size:42px;}
  .hero h1{font-size:42px;}
  .timeline{grid-template-columns:repeat(3,1fr);row-gap:36px;}
  .timeline::before{display:none;}
}
@media (max-width:991px){
  :root{--gap-section:72px;}
  .nav-menu,.nav-cta{display:none;}
  .nav-toggle{display:block;}
  .hero{min-height:460px;}
  .hero h1{font-size:36px;}
  .hero-sub{font-size:17px;}
  .trust-bar{grid-template-columns:repeat(2,1fr);margin-top:-40px;}
  .trust-item{border-bottom:1px solid var(--line);}
  .trust-item:nth-child(2){border-right:0;}
  .plan-grid{grid-template-columns:1fr;}
  .cta-wrap{grid-template-columns:1fr;gap:36px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .feature-card--tall img{height:220px;}
}
@media (max-width:767px){
  :root{--gap-section:56px;}
  h1{font-size:31px;}
  h2{font-size:26px;}
  .hero h1{font-size:31px;}
  .hero{min-height:420px;}
  .hero .container{padding-top:48px;padding-bottom:48px;}
  .hero-facts{gap:24px;}
  .hero-fact strong{font-size:22px;}
  .timeline{grid-template-columns:1fr;gap:24px;}
  .tl-node{padding-top:0;padding-left:44px;}
  .tl-node::before{top:2px;left:8px;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .trust-bar{grid-template-columns:1fr;}
  .trust-item{border-right:0;}
  .form-card{padding:26px 20px;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .nav-inner{height:64px;}
  .nav-drawer{inset:64px 0 0 0;}
}

/* roulang page: category1 */
:root{
  --brand:#0E5A5A;
  --brand-deep:#0B3C3C;
  --accent:#E07A3F;
  --jade:#DCE8E4;
  --bg:#F6F7F5;
  --text:#1C1F1D;
  --muted:#5A625E;
  --line:rgba(14,90,90,.12);
  --card-radius:14px;
  --btn-radius:999px;
  --shadow:0 8px 24px rgba(14,90,90,.08);
  --shadow-hover:0 12px 32px rgba(14,90,90,.14);
  --section-gap:96px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{font-weight:700;line-height:1.25;color:var(--text);margin:0 0 16px;}
h1{font-size:46px;letter-spacing:-.5px;}
h2{font-size:33px;}
h3{font-size:22px;}
p{margin:0 0 16px;}
ul{padding-left:0;list-style:none;margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}

/* ---------- 容器 ---------- */
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}
.section{padding:var(--section-gap) 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-kicker{
  display:inline-block;font-size:13px;letter-spacing:2px;color:var(--brand);
  background:var(--jade);border-radius:999px;padding:4px 14px;margin-bottom:16px;font-weight:600;
}
.section-head h2{position:relative;padding-bottom:14px;}
.section-head h2::after{
  content:"";position:absolute;left:0;bottom:0;width:56px;height:4px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.section-head.center h2::after{left:50%;transform:translateX(-50%);}
.section-head p{color:var(--muted);font-size:16px;margin:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--btn-radius);font-weight:600;font-size:15px;
  padding:13px 30px;border:1.5px solid transparent;cursor:pointer;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(14,90,90,.18);}
.btn-primary:hover,.btn-primary:focus{background:var(--accent);color:#fff;box-shadow:0 10px 26px rgba(224,122,63,.28);transform:translateY(-1px);}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover,.btn-outline:focus{color:var(--accent);border-color:var(--accent);background:rgba(224,122,63,.06);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);box-shadow:var(--shadow);}
.btn-ghost:hover,.btn-ghost:focus{color:var(--accent);border-color:var(--accent);}
.btn-sm{padding:9px 22px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;font-size:17px;font-weight:700;display:flex;align-items:center;justify-content:center;
  letter-spacing:1px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.5px;}
.brand-text em{font-style:normal;font-size:12.5px;color:var(--muted);letter-spacing:1px;}
.header-inner > nav{flex:1 1 auto;display:flex;justify-content:center;}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-menu li a{
  display:block;padding:10px 14px;font-size:15px;color:#2c3330;border-radius:10px;
  position:relative;font-weight:500;white-space:nowrap;
}
.nav-menu li a:hover{color:var(--brand);background:var(--jade);}
.nav-menu li a.active{color:var(--accent);}
.nav-menu li a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:2px;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand);font-size:18px;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{color:var(--accent);border-color:var(--accent);}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:1055;background:rgba(11,60,60,.98);
  transform:translateX(100%);transition:transform .32s ease;
  display:flex;flex-direction:column;padding:28px 24px 40px;overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:36px;}
.drawer-brand{display:flex;align-items:center;gap:12px;color:#fff;}
.drawer-brand .brand-mark{background:rgba(220,232,228,.16);}
.drawer-brand strong{font-size:16px;letter-spacing:.5px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.24);
  background:transparent;color:#fff;font-size:20px;cursor:pointer;
}
.drawer-close:hover{background:var(--accent);border-color:var(--accent);}
.drawer-menu{display:flex;flex-direction:column;gap:4px;margin-bottom:32px;}
.drawer-menu a{
  color:#eaf2ef;font-size:20px;font-weight:600;padding:14px 4px;
  border-bottom:1px solid rgba(255,255,255,.09);
}
.drawer-menu a.active{color:var(--accent);}
.drawer-menu a:hover{color:var(--accent);}
.drawer-cta{display:flex;flex-direction:column;gap:12px;}
.drawer-cta .btn-primary{background:var(--accent);}
.drawer-cta .btn-outline{color:#fff;border-color:rgba(255,255,255,.4);}
.drawer-cta .btn-outline:hover{color:var(--accent);border-color:var(--accent);}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:520px;display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  color:#fff;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,60,60,.94) 0%,rgba(11,60,60,.82) 46%,rgba(14,90,90,.6) 100%);
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);box-shadow:0 0 0 60px rgba(255,255,255,.04),0 0 0 120px rgba(255,255,255,.03);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:2px;
  background:rgba(220,232,228,.16);border:1px solid rgba(220,232,228,.3);
  color:#f1f7f5;border-radius:999px;padding:6px 16px;margin-bottom:22px;font-weight:600;
}
.hero h1{color:#fff;font-size:48px;margin-bottom:18px;max-width:840px;}
.hero h1 span{display:block;font-size:26px;font-weight:600;color:#dbeae6;letter-spacing:1px;margin-top:10px;}
.hero-sub{font-size:17px;color:#e3edea;max-width:620px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-actions .btn-outline{color:#fff;border-color:rgba(255,255,255,.55);}
.hero-actions .btn-outline:hover{color:#fff;border-color:var(--accent);background:var(--accent);}
.hero-facts{display:flex;flex-wrap:wrap;gap:28px;border-top:1px solid rgba(255,255,255,.18);padding-top:22px;}
.hero-facts div{font-size:14px;color:#d7e5e1;display:flex;align-items:center;gap:8px;}
.hero-facts i{color:var(--accent);}

/* ---------- 面包屑 ---------- */
.crumbs{padding:18px 0 0;font-size:13.5px;color:var(--muted);}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0;padding:0;list-style:none;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--accent);}
.crumbs li+li::before{content:"/";margin-right:8px;color:rgba(90,98,94,.5);}

/* ---------- 信息条 ---------- */
.info-strip{background:#fff;border-radius:var(--card-radius);box-shadow:var(--shadow);margin-top:-56px;position:relative;z-index:5;padding:12px 8px;}
.info-strip .row{margin:0;}
.info-item{padding:22px 18px;border-right:1px solid var(--line);}
.info-item:last-child{border-right:none;}
.info-item .icon{
  width:46px;height:46px;border-radius:12px;background:var(--jade);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:14px;
}
.info-item h3{font-size:18px;margin-bottom:6px;}
.info-item p{font-size:14px;color:var(--muted);margin:0;line-height:1.7;}

/* ---------- 图文交替 ---------- */
.feature-row{align-items:center;margin-bottom:88px;}
.feature-row:last-child{margin-bottom:0;}
.feature-media{position:relative;}
.feature-media img{border-radius:12px;box-shadow:var(--shadow);width:100%;object-fit:cover;aspect-ratio:4/3;}
.feature-media .badge-float{
  position:absolute;left:20px;bottom:-18px;background:var(--accent);color:#fff;
  font-size:13px;font-weight:600;padding:8px 18px;border-radius:999px;box-shadow:0 8px 20px rgba(224,122,63,.3);
}
.feature-text h2{font-size:30px;margin-bottom:14px;}
.feature-text .lead{color:var(--muted);font-size:16px;margin-bottom:22px;}
.point-list li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;font-size:15.5px;}
.point-list li i{color:var(--accent);margin-top:5px;font-size:14px;flex:0 0 auto;}
.feature-cta{margin-top:22px;display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 场景卡片 ---------- */
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--card-radius);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(224,122,63,.35);}
.scene-card img{aspect-ratio:16/9;object-fit:cover;width:100%;}
.scene-card .body{padding:24px;display:flex;flex-direction:column;flex:1;}
.scene-card h3{font-size:20px;margin-bottom:10px;transition:color .25s ease;}
.scene-card:hover h3{color:var(--accent);}
.scene-card p{font-size:14.5px;color:var(--muted);flex:1;margin-bottom:16px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{background:var(--jade);color:var(--brand);font-size:12.5px;font-weight:600;padding:4px 10px;border-radius:999px;}
.tag.accent{background:var(--accent);color:#fff;}

/* ---------- 步骤流程 ---------- */
.flow-panel{background:var(--brand-deep);border-radius:18px;padding:64px 56px;color:#fff;position:relative;overflow:hidden;}
.flow-panel::before{
  content:"";position:absolute;left:-80px;bottom:-80px;width:340px;height:340px;border-radius:50%;
  background:rgba(220,232,228,.06);
}
.flow-panel .section-kicker{background:rgba(220,232,228,.16);color:#e8f2ef;}
.flow-panel h2{color:#fff;}
.flow-panel .section-head p{color:#c8d9d5;}
.flow-list{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;position:relative;z-index:2;}
.flow-step{position:relative;padding-top:28px;border-top:2px solid rgba(220,232,228,.24);}
.flow-step::before{
  content:"";position:absolute;top:-8px;left:0;width:14px;height:14px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 5px rgba(224,122,63,.22);
}
.flow-step .num{font-size:13px;letter-spacing:2px;color:var(--accent);font-weight:700;display:block;margin-bottom:10px;}
.flow-step h3{color:#fff;font-size:19px;margin-bottom:8px;}
.flow-step p{color:#c3d5d1;font-size:14.5px;margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--card-radius);
  margin-bottom:16px;overflow:hidden;transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item:hover{box-shadow:var(--shadow);}
.faq-item .accordion-button{
  background:transparent;box-shadow:none;border:none;padding:22px 26px;
  font-size:17px;font-weight:600;color:var(--text);width:100%;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item .accordion-button::after{display:none;}
.faq-item .accordion-button:not(.collapsed){color:var(--accent);}
.faq-item .accordion-button .chev{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;background:var(--jade);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:13px;transition:transform .3s ease,background-color .3s ease,color .3s ease;
}
.faq-item .accordion-button:not(.collapsed) .chev{transform:rotate(180deg);background:var(--accent);color:#fff;}
.faq-item .accordion-body{padding:0 26px 26px;color:var(--muted);line-height:1.8;max-width:740px;}

/* ---------- CTA 表单 ---------- */
.cta-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.cta-box{
  background:linear-gradient(120deg,#0E5A5A 0%,#0B3C3C 100%);
  border-radius:18px;padding:56px;color:#fff;position:relative;overflow:hidden;
}
.cta-box::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  border:1px solid rgba(255,255,255,.13);
}
.cta-box h2{color:#fff;font-size:32px;}
.cta-box .lead{color:#c9dbd7;font-size:16px;margin-bottom:24px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:#dbe9e6;font-size:15px;padding:6px 0;}
.cta-points li i{color:var(--accent);margin-top:5px;}
.form-card{background:#fff;border-radius:14px;padding:30px;box-shadow:0 16px 40px rgba(0,0,0,.14);position:relative;z-index:2;}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-note{font-size:13px;color:var(--muted);margin-bottom:20px;}
.form-label{font-size:14px;font-weight:600;color:#2c3330;margin-bottom:8px;}
.form-control,.form-select{
  height:48px;border-radius:10px;border:1px solid var(--jade);background:#fbfcfb;
  font-size:15px;color:var(--text);padding:0 16px;box-shadow:none;
}
textarea.form-control{height:auto;padding:12px 16px;font-size:15px;line-height:1.7;}
.form-control:focus,.form-select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(224,122,63,.15);background:#fff;}
.form-control::placeholder{color:#9aa5a0;}
.form-msg{font-size:13.5px;color:var(--accent);margin-top:12px;display:none;}
.form-msg.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#c6d8d4;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand-mark{
  display:inline-flex;margin-bottom:16px;background:rgba(220,232,228,.14);
}
.footer-brand strong{display:block;color:#fff;font-size:17px;letter-spacing:.5px;margin-bottom:12px;}
.footer-brand p{font-size:14px;color:#a9c0bc;line-height:1.8;margin:0;max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;letter-spacing:1px;margin-bottom:18px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:#a9c0bc;font-size:14.5px;}
.footer-col ul li a:hover{color:var(--accent);}
.footer-bottom{
  border-top:1px solid rgba(220,232,228,.14);padding:22px 0;display:flex;
  justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:#8fa8a4;
}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .hero h1{font-size:44px;}
}
@media (max-width:1199px){
  :root{--section-gap:80px;}
  .header-inner > nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero h1{font-size:40px;}
  .hero h1 span{font-size:23px;}
  .flow-list{grid-template-columns:repeat(2,1fr);gap:32px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  h1{font-size:36px;}
  h2{font-size:29px;}
  .hero{min-height:480px;}
  .hero h1{font-size:34px;}
  .hero h1 span{font-size:20px;}
  .info-strip{margin-top:0;box-shadow:none;border-radius:14px;border:1px solid var(--line);}
  .info-item{border-right:none;border-bottom:1px solid var(--line);}
  .info-item:last-child{border-bottom:none;}
  .feature-row{margin-bottom:64px;}
  .feature-row .feature-media{margin-bottom:36px;}
  .cta-box{padding:40px 32px;}
  .flow-panel{padding:48px 32px;}
}
@media (max-width:767px){
  :root{--section-gap:56px;}
  .container{padding-left:16px;padding-right:16px;}
  body{font-size:15.5px;}
  h1{font-size:31px;}
  h2{font-size:26px;}
  h3{font-size:19px;}
  .hero{min-height:420px;padding:56px 0 64px;}
  .hero h1{font-size:30px;}
  .hero h1 span{font-size:18px;margin-top:8px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-facts{gap:16px;}
  .section-head{margin-bottom:32px;}
  .flow-list{grid-template-columns:1fr;gap:24px;}
  .flow-panel{padding:36px 22px;}
  .cta-box{padding:32px 22px;}
  .form-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;text-align:left;}
  .faq-item .accordion-button{padding:18px 18px;font-size:15.5px;}
  .faq-item .accordion-body{padding:0 18px 20px;}
}
@media (max-width:520px){
  .brand-text strong{font-size:14.5px;}
  .brand-text em{font-size:11.5px;}
  .brand-mark{width:40px;height:40px;flex:0 0 40px;font-size:15px;}
  .hero-tag{font-size:12px;letter-spacing:1px;}
}

/* roulang page: article */
:root{
  --brand:#0E5A5A;
  --brand-deep:#0B3C3C;
  --accent:#E07A3F;
  --jade:#DCE8E4;
  --bg:#F6F7F5;
  --text:#1C1F1D;
  --muted:#5A625E;
  --line:rgba(14,90,90,.12);
  --white:#ffffff;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow:0 8px 24px rgba(14,90,90,.08);
  --shadow-hover:0 12px 32px rgba(14,90,90,.14);
  --section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .25s ease,border-color .25s ease,background-color .25s ease;}
a:hover{color:var(--accent);}
ul,ol{padding-left:1.3em;}
button{font-family:inherit;}
h1,h2,h3,h4{font-weight:700;line-height:1.25;margin:0;color:var(--text);}
p{margin:0 0 1em;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:200;}
.skip-link:focus{left:0;color:#fff;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.95);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(14,90,90,.09);}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,#0E5A5A,#12807A);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;letter-spacing:.5px;
}
.brand-text strong{display:block;font-size:15px;font-weight:700;line-height:1.2;color:var(--text);letter-spacing:.2px;}
.brand-text em{display:block;font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.6px;}
.brand:hover .brand-text strong{color:var(--accent);}
.main-nav{flex:1;}
.nav-menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;}
.nav-menu a{
  position:relative;display:block;padding:10px 14px;border-radius:10px;
  font-size:15px;color:var(--muted);white-space:nowrap;
}
.nav-menu a:hover{color:var(--brand);background:var(--jade);}
.nav-menu a.active{color:var(--brand);font-weight:600;}
.nav-menu a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:999px;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;padding:0;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;margin:4px auto;background:var(--brand);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0;}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;text-decoration:none;transition:all .25s ease;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover,.btn-primary:focus{background:var(--accent);border-color:var(--accent);color:#fff;}
.btn-outline{background:#fff;color:var(--brand);border-color:rgba(14,90,90,.28);}
.btn-outline:hover,.btn-outline:focus{color:var(--accent);border-color:var(--accent);background:#fff;}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.45);}
.btn-ghost:hover{background:#fff;color:var(--brand-deep);border-color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ===== Badges / tags ===== */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;font-size:12.5px;line-height:1.6;
  background:var(--jade);color:var(--brand);font-weight:600;
}
.badge-accent{background:var(--accent);color:#fff;}

/* ===== Article hero ===== */
.article-hero{
  position:relative;padding:52px 0 44px;overflow:hidden;
  background-image:linear-gradient(rgba(246,247,245,.93),rgba(246,247,245,.97)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.article-hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  border:1px solid rgba(14,90,90,.12);box-shadow:0 0 0 40px rgba(14,90,90,.04);pointer-events:none;
}
.breadcrumb-nav{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:22px;}
.breadcrumb-nav a{color:var(--muted);}
.breadcrumb-nav a:hover{color:var(--accent);}
.breadcrumb-nav .sep{color:rgba(14,90,90,.35);}
.breadcrumb-nav .current{color:var(--brand);font-weight:600;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-hero h1{
  font-size:clamp(28px,3.4vw,46px);
  max-width:920px;letter-spacing:.2px;position:relative;z-index:1;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;margin-top:22px;font-size:13.5px;color:var(--muted);position:relative;z-index:1;}
.article-meta .author{color:var(--brand);font-weight:600;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(14,90,90,.3);}

/* ===== Article body ===== */
.article-section{padding:64px 0 var(--section);}
.article-content{
  max-width:780px;margin:0 auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow);
  padding:44px 48px;font-size:16px;line-height:1.8;word-wrap:break-word;overflow-wrap:break-word;
}
.article-content > p{margin:0 0 1.2em;color:#26292a;}
.article-content h2{
  font-size:clamp(24px,2.4vw,32px);margin:2em 0 .7em;padding-left:14px;
  border-left:4px solid var(--brand);line-height:1.3;
}
.article-content h2:first-child{margin-top:0;}
.article-content h3{font-size:21px;margin:1.6em 0 .6em;color:var(--brand);}
.article-content h4{font-size:17px;margin:1.4em 0 .5em;}
.article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:1.4em;}
.article-content li{margin-bottom:.5em;}
.article-content img{border-radius:var(--radius-img);margin:1.4em auto;box-shadow:var(--shadow);}
.article-content figure{margin:1.6em 0;}
.article-content figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-content blockquote{
  margin:1.6em 0;padding:16px 22px;border-left:4px solid var(--accent);
  background:var(--jade);border-radius:0 var(--radius-img) var(--radius-img) 0;color:#33504e;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{color:var(--accent);}
.article-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14.5px;display:block;overflow-x:auto;white-space:nowrap;}
.article-content th{background:var(--brand);color:#fff;padding:12px 16px;text-align:left;font-weight:600;}
.article-content td{padding:12px 16px;border-bottom:1px solid var(--line);}
.article-content tbody tr:nth-child(even){background:rgba(220,232,228,.45);}
.article-content pre{
  background:var(--brand-deep);color:#E6F1EF;padding:18px 20px;border-radius:var(--radius-img);
  overflow-x:auto;font-size:13.5px;line-height:1.7;margin:1.6em 0;
}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}
.article-actions{max-width:780px;margin:32px auto 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;}
.empty-state{
  max-width:780px;margin:0 auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow);padding:56px 40px;text-align:center;
}
.empty-state h2{font-size:26px;margin-bottom:12px;}
.empty-state p{color:var(--muted);margin-bottom:24px;}

/* ===== Section head ===== */
.section{padding:var(--section) 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .eyebrow{display:inline-block;font-size:12.5px;letter-spacing:1.6px;color:var(--accent);font-weight:700;margin-bottom:12px;}
.section-head h2{font-size:clamp(24px,2.8vw,36px);position:relative;padding-bottom:16px;}
.section-head h2::after{content:"";position:absolute;left:0;bottom:0;width:56px;height:4px;border-radius:999px;background:var(--brand);}
.section-head p{margin-top:16px;color:var(--muted);font-size:15.5px;}

/* ===== Support cards ===== */
.support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.support-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px 26px;box-shadow:var(--shadow);transition:transform .28s ease,box-shadow .28s ease;
}
.support-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.support-icon{
  width:48px;height:48px;border-radius:12px;background:var(--jade);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;margin-bottom:18px;
}
.support-card h3{font-size:20px;margin-bottom:10px;}
.support-card p{font-size:14.5px;color:var(--muted);margin-bottom:0;}

/* ===== Recommend cards ===== */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rec-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .28s ease,box-shadow .28s ease;color:inherit;
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);color:inherit;}
.rec-card figure{margin:0;overflow:hidden;}
.rec-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.rec-card:hover img{transform:scale(1.03);}
.rec-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.rec-body .badge-pill{align-self:flex-start;margin-bottom:14px;}
.rec-body h3{font-size:18.5px;line-height:1.45;margin-bottom:10px;transition:color .25s ease;}
.rec-card:hover h3{color:var(--accent);}
.rec-body p{font-size:14px;color:var(--muted);margin-bottom:18px;}
.rec-meta{margin-top:auto;font-size:13px;color:var(--muted);display:flex;justify-content:space-between;gap:10px;border-top:1px solid var(--line);padding-top:14px;}

/* ===== CTA ===== */
.cta-band{
  background:var(--brand-deep);color:#fff;border-radius:20px;
  padding:56px 52px;display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:rgba(224,122,63,.16);
}
.cta-band .cta-copy{max-width:620px;position:relative;z-index:1;}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,34px);margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;margin-bottom:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;}

/* ===== Footer ===== */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.76);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .brand-mark{margin-bottom:16px;}
.footer-brand strong{display:block;color:#fff;font-size:17px;margin-bottom:12px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);margin:0;max-width:360px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li + li{margin-top:10px;}
.footer-col a{color:rgba(255,255,255,.75);font-size:14px;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.14);padding:22px 0;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ===== Responsive ===== */
@media (max-width:1399px){
  .container{max-width:1200px;}
}
@media (max-width:1199px){
  :root{--section:80px;}
  .nav-menu a{padding:10px 10px;font-size:14.5px;}
}
@media (max-width:991px){
  :root{--section:72px;}
  .header-inner{min-height:66px;}
  .nav-toggle{display:block;}
  .main-nav{
    position:fixed;left:0;right:0;top:66px;bottom:0;background:#fff;
    padding:28px 24px 40px;overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .28s ease,transform .28s ease,visibility .28s ease;
    border-top:1px solid var(--line);
  }
  .site-header.nav-open .main-nav{opacity:1;visibility:visible;transform:none;}
  .nav-menu{flex-direction:column;align-items:stretch;gap:6px;}
  .nav-menu a{font-size:19px;padding:16px 14px;border-radius:12px;color:var(--text);}
  .nav-menu a.active::after{left:14px;right:auto;width:34px;bottom:8px;}
  .header-actions .btn{display:none;}
  .support-grid,.rec-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 24px;}
  .cta-band{padding:44px 32px;}
}
@media (max-width:767px){
  :root{--section:56px;}
  .container{padding-left:16px;padding-right:16px;}
  .article-hero{padding:36px 0 32px;}
  .article-hero h1{font-size:30px;}
  .article-content{padding:28px 20px;border-radius:12px;}
  .article-content h2{font-size:23px;}
  .article-content h3{font-size:19px;}
  .article-actions{flex-direction:column;align-items:stretch;}
  .article-actions .btn{width:100%;}
  .support-grid,.rec-grid{grid-template-columns:1fr;}
  .section-head{margin-bottom:32px;}
  .cta-band{padding:36px 24px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .brand-text em{display:none;}
}
@media (max-width:520px){
  .article-hero h1{font-size:27px;}
  .breadcrumb-nav .current{max-width:100%;}
  .btn{height:46px;padding:0 18px;}
}

/* roulang page: category2 */
:root{
  --brand:#0E5A5A;
  --brand-deep:#0B3C3C;
  --accent:#E07A3F;
  --jade:#DCE8E4;
  --bg:#F6F7F5;
  --ink:#1C1F1D;
  --muted:#5A625E;
  --line:rgba(14,90,90,.12);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow:0 8px 24px rgba(14,90,90,.08);
  --shadow-hover:0 12px 32px rgba(14,90,90,.14);
  --space-section:92px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.75;
  color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--brand);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--accent);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{font-weight:700;line-height:1.25;margin:0 0 14px;color:var(--ink);}
h1{font-size:48px;letter-spacing:-.5px;}
h2{font-size:34px;}
h3{font-size:22px;}
p{margin:0 0 16px;color:var(--muted);}
ul{margin:0;padding:0;list-style:none;}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:18px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:none;display:flex;align-items:center;justify-content:center;
  background:var(--brand);color:#fff;font-weight:700;font-size:16px;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--ink);}
.brand-text em{font-style:normal;font-size:12px;color:var(--brand);letter-spacing:.6px;}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-menu > li > a{
  display:block;padding:9px 14px;border-radius:999px;font-size:15px;color:var(--muted);position:relative;
}
.nav-menu > li > a:hover{color:var(--brand);background:var(--jade);}
.nav-menu > li > a.active{color:var(--brand);font-weight:600;}
.nav-menu > li > a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;
  color:var(--brand);font-size:18px;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}

/* 抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:1050;background:var(--brand-deep);color:#fff;
  transform:translateX(100%);transition:transform .3s ease;display:flex;flex-direction:column;
  padding:22px 22px 32px;overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-head .brand-mark{background:rgba(255,255,255,.14);}
.drawer-head strong{color:#fff;font-size:16px;}
.drawer-close{background:transparent;border:1px solid rgba(255,255,255,.3);color:#fff;width:42px;height:42px;border-radius:12px;font-size:16px;}
.drawer-close:hover{background:var(--accent);border-color:var(--accent);}
.drawer-nav li + li{border-top:1px solid rgba(255,255,255,.12);}
.drawer-nav a{display:block;padding:18px 4px;font-size:20px;font-weight:600;color:#fff;}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--accent);}
.drawer-cta{margin-top:auto;padding-top:26px;}

/* ---------- 按钮 ---------- */
.btn{transition:background .25s ease,color .25s ease,border-color .25s ease,box-shadow .25s ease;}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;box-shadow:none;}
.btn-brand{
  background:var(--brand);border:1px solid var(--brand);color:#fff;border-radius:var(--radius-btn);
  padding:11px 22px;font-weight:600;font-size:15px;
}
.btn-brand:hover,.btn-brand:focus{background:var(--accent);border-color:var(--accent);color:#fff;}
.btn-ghost{
  background:transparent;border:1px solid var(--brand);color:var(--brand);border-radius:var(--radius-btn);
  padding:11px 22px;font-weight:600;font-size:15px;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-light-ghost{
  background:transparent;border:1px solid rgba(255,255,255,.55);color:#fff;border-radius:var(--radius-btn);
  padding:11px 22px;font-weight:600;font-size:15px;
}
.btn-light-ghost:hover{background:#fff;color:var(--brand-deep);border-color:#fff;}
.btn-sm{padding:9px 18px;font-size:14px;}

/* ---------- 徽章 / 标签 ---------- */
.badge-pill{
  display:inline-block;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--jade);color:var(--brand);letter-spacing:.3px;
}
.badge-pill.orange{background:var(--accent);color:#fff;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:2px;
  color:var(--accent);text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);border-radius:2px;}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;color:#fff;padding:104px 0 92px;
  background-image:linear-gradient(105deg,rgba(11,60,60,.92) 0%,rgba(11,60,60,.72) 52%,rgba(11,60,60,.45) 100%),
                   url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);box-shadow:0 0 0 60px rgba(255,255,255,.04);pointer-events:none;
}
.hero h1{color:#fff;max-width:760px;}
.hero .lead{color:rgba(255,255,255,.86);font-size:18px;max-width:620px;margin-bottom:26px;}
.hero-badge{
  display:inline-block;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);color:#fff;margin-bottom:18px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:44px;}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;max-width:700px;}
.hero-stat{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-card);
  padding:16px 18px;backdrop-filter:blur(4px);
}
.hero-stat b{display:block;font-size:26px;color:#fff;line-height:1.2;}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.78);}

/* ---------- 板块 ---------- */
.section{padding:var(--space-section) 0;}
.section.tight{padding:72px 0;}
.section-jade{background:var(--jade);}
.section-dark{background:var(--brand-deep);color:#fff;}
.section-dark h2,.section-dark h3{color:#fff;}
.section-dark p{color:rgba(255,255,255,.82);}
.section-head{max-width:720px;margin-bottom:46px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{position:relative;padding-bottom:14px;}
.section-head h2::after{
  content:"";position:absolute;left:0;bottom:0;width:54px;height:3px;border-radius:3px;background:var(--accent);
}
.section-head.center h2::after{left:50%;transform:translateX(-50%);}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr));}
.card-grid.two{grid-template-columns:repeat(2,minmax(0,1fr));}
.v-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow);display:flex;flex-direction:column;height:100%;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.v-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(224,122,63,.4);}
.v-card:hover h3{color:var(--accent);}
.v-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.v-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s ease;}
.v-card:hover .thumb img{transform:scale(1.03);}
.v-card .thumb .tag{position:absolute;left:14px;top:14px;}
.v-card .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.v-card h3{font-size:20px;margin:0;transition:color .25s ease;}
.v-card p{font-size:14.5px;margin:0;}
.v-card .meta{margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted);display:flex;justify-content:space-between;gap:10px;}

/* ---------- 对照表 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;box-shadow:var(--shadow);}
table.compare{width:100%;border-collapse:collapse;min-width:680px;font-size:15px;}
table.compare thead th{background:var(--brand);color:#fff;font-weight:600;padding:15px 18px;text-align:left;white-space:nowrap;}
table.compare tbody td{padding:14px 18px;border-top:1px solid var(--line);color:var(--muted);}
table.compare tbody tr:nth-child(even){background:rgba(220,232,228,.5);}
table.compare tbody td:first-child{color:var(--ink);font-weight:600;}
.dot-yes{color:var(--brand);font-weight:600;}
.dot-part{color:var(--accent);font-weight:600;}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:step;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow);
  position:relative;transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.step .num{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;
  background:var(--accent);color:#fff;font-weight:700;font-size:15px;margin-bottom:14px;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14px;margin:0;}
.step::after{
  content:"";position:absolute;right:-13px;top:44px;width:14px;height:2px;background:var(--jade);
}
.step:last-child::after{display:none;}

/* ---------- 要点列表 ---------- */
.feature-list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--muted);}
.feature-list li:last-child{border-bottom:none;}
.feature-list i{color:var(--accent);margin-top:5px;font-size:14px;}
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:30px;box-shadow:var(--shadow);height:100%;
}
.panel h3{font-size:20px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion-item{
  border:1px solid var(--line)!important;border-radius:var(--radius-card)!important;margin-bottom:14px;
  overflow:hidden;background:#fff;box-shadow:var(--shadow);
}
.accordion-button{
  background:#fff;color:var(--ink);font-weight:600;font-size:17px;padding:20px 22px;border:none;
  border-radius:var(--radius-card)!important;box-shadow:none!important;
}
.accordion-button:not(.collapsed){color:var(--accent);background:rgba(224,122,63,.06);}
.accordion-button:focus{outline:2px solid var(--accent);outline-offset:-2px;box-shadow:none;}
.accordion-button::after{
  background-image:none;width:10px;height:10px;flex:none;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg) translate(-2px,-2px);transition:transform .25s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg) translate(-2px,-2px);}
.accordion-body{padding:4px 22px 22px;color:var(--muted);line-height:1.8;max-width:760px;}

/* ---------- CTA ---------- */
.cta-box{
  background:var(--brand-deep);border-radius:20px;padding:54px 48px;color:#fff;position:relative;overflow:hidden;
}
.cta-box::before{
  content:"";position:absolute;left:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);pointer-events:none;
}
.cta-box h2{color:#fff;margin-bottom:12px;}
.cta-box p{color:rgba(255,255,255,.82);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B3C3C;color:rgba(255,255,255,.78);padding:66px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand .brand-mark{margin-bottom:14px;}
.footer-brand strong{display:block;color:#fff;font-size:17px;margin-bottom:10px;}
.footer-brand p{color:rgba(255,255,255,.7);font-size:14px;margin:0;max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;}
.footer-col li{margin-bottom:9px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  h1{font-size:44px;}
}
@media (max-width:1199.98px){
  :root{--space-section:80px;}
  h1{font-size:40px;}\n  h2{font-size:30px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step::after{display:none;}
}
@media (max-width:991.98px){
  .nav-menu{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-brand{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  h1{font-size:36px;}
  .hero{padding:80px 0 68px;}
}
@media (max-width:767.98px){
  :root{--space-section:56px;}
  .container{padding-left:16px;padding-right:16px;}
  h1{font-size:31px;}
  h2{font-size:26px;}
  h3{font-size:19px;}
  .hero{padding:64px 0 56px;min-height:0;}
  .hero .lead{font-size:16px;}
  .hero-stats{grid-template-columns:1fr;gap:12px;}
  .card-grid,.card-grid.two,.steps{grid-template-columns:1fr;}
  .cta-box{padding:36px 22px;}
  .panel{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .accordion-button{font-size:16px;padding:16px 16px;}
}
@media (max-width:519.98px){
  h1{font-size:29px;}
  .hero-actions .btn,.cta-actions .btn{width:100%;text-align:center;}
}

/* roulang page: category3 */
:root{
  --brand:#0E5A5A;
  --brand-deep:#0B3C3C;
  --accent:#E07A3F;
  --jade:#DCE8E4;
  --bg:#F6F7F5;
  --text:#1C1F1D;
  --muted:#5A625E;
  --line:rgba(14,90,90,0.12);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow:0 8px 24px rgba(14,90,90,0.08);
  --shadow-hover:0 12px 32px rgba(14,90,90,0.14);
  --space-section:96px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  padding-top:72px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .25s ease,border-color .25s ease;}
a:hover{color:var(--accent);}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{font-weight:700;line-height:1.25;color:var(--text);margin:0;}
h1{font-size:48px;letter-spacing:-0.5px;}
h2{font-size:34px;}
h3{font-size:22px;}
p{margin:0 0 1em;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:var(--space-section) 0;}
.section-alt{background:#fff;}
.section-jade{background:var(--jade);}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.12em;
  color:var(--brand);
  background:var(--jade);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:18px;
  font-weight:600;
}
.section-title{font-size:34px;position:relative;padding-bottom:16px;margin-bottom:16px;}
.section-title::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:52px;height:3px;border-radius:3px;background:var(--accent);
}
.section-head.center .section-title::after{left:50%;transform:translateX(-50%);}
.section-sub{color:var(--muted);font-size:16px;margin:0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:72px;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;letter-spacing:.02em;
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text .line-1{font-size:14px;font-weight:700;color:var(--brand-deep);letter-spacing:.02em;}
.brand-text .line-2{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.06em;}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-menu li a{
  display:block;
  padding:10px 14px;
  font-size:15px;
  color:var(--text);
  border-radius:var(--radius-btn);
  position:relative;
  white-space:nowrap;
}
.nav-menu li a::after{
  content:"";
  position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-menu li a:hover{color:var(--brand);}
.nav-menu li a:hover::after{transform:scaleX(1);}
.nav-menu li a.active{color:var(--brand);font-weight:600;background:var(--jade);}
.nav-menu li a.active::after{transform:scaleX(1);}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#fff;
  padding:11px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .25s ease,color .25s ease,transform .25s ease;
}
.nav-cta:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-btn);
  border:1px solid var(--line);color:var(--brand);
  align-items:center;justify-content:center;font-size:18px;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:1200;
  background:#fff;
  transform:translateY(-100%);
  transition:transform .34s cubic-bezier(.22,.8,.3,1);
  display:flex;flex-direction:column;
  padding:22px 24px 40px;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:34px;}
.drawer-close{
  width:44px;height:44px;border-radius:var(--radius-btn);
  border:1px solid var(--line);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:20px;
}
.drawer-close:hover{border-color:var(--accent);color:var(--accent);}
.drawer-nav li a{
  display:block;padding:18px 4px;font-size:20px;font-weight:600;
  color:var(--text);border-bottom:1px solid var(--line);
}
.drawer-nav li a.active{color:var(--accent);}
.drawer-nav li a:hover{color:var(--accent);}
.drawer-cta{
  margin-top:32px;display:flex;align-items:center;justify-content:center;
  background:var(--brand);color:#fff;padding:16px;border-radius:var(--radius-btn);
  font-weight:600;font-size:17px;
}
.drawer-cta:hover{background:var(--accent);color:#fff;}

/* ============ 页面首屏 ============ */
.page-hero{
  position:relative;
  padding:78px 0 88px;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(11,60,60,.94) 0%,rgba(11,60,60,.82) 48%,rgba(14,90,90,.62) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.76);margin-bottom:26px;}
.breadcrumb-bar a{color:rgba(255,255,255,.9);}
.breadcrumb-bar a:hover{color:var(--accent);}
.breadcrumb-bar .sep{opacity:.55;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(220,232,228,.16);
  border:1px solid rgba(220,232,228,.32);
  color:#fff;border-radius:999px;
  padding:6px 16px;font-size:13px;letter-spacing:.06em;margin-bottom:22px;
}
.hero-tag i{color:var(--accent);}
.page-hero h1{
  color:#fff;font-size:46px;max-width:900px;margin-bottom:20px;
}
.page-hero .hero-sub{
  font-size:18px;color:rgba(255,255,255,.86);max-width:640px;margin-bottom:34px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn-main{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--brand);color:#fff;
  padding:14px 28px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;
  transition:background .25s ease,color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.btn-main:hover{background:var(--accent);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  background:transparent;color:#fff;
  border:1px solid rgba(255,255,255,.55);
  padding:14px 28px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;
  transition:border-color .25s ease,color .25s ease,background .25s ease,transform .25s ease;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
.hero-stats{display:flex;flex-wrap:wrap;gap:40px;margin-top:46px;padding-top:30px;border-top:1px solid rgba(255,255,255,.18);}
.hero-stats .stat strong{display:block;font-size:28px;font-weight:700;color:#fff;}
.hero-stats .stat span{font-size:13px;color:rgba(255,255,255,.7);}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:0;margin:0;}
.timeline::before{
  content:"";position:absolute;left:23px;top:16px;bottom:16px;width:2px;
  background:linear-gradient(180deg,var(--jade) 0%,rgba(220,232,228,.35) 100%);
}
.timeline-item{position:relative;padding-left:78px;margin-bottom:30px;}
.timeline-item:last-child{margin-bottom:0;}
.timeline-item .num{
  position:absolute;left:0;top:0;
  width:48px;height:48px;border-radius:50%;
  background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:16px;
  box-shadow:0 6px 16px rgba(224,122,63,.28);
  z-index:2;
}
.timeline-card{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 26px;
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.timeline-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(224,122,63,.35);}
.timeline-card:hover h3{color:var(--accent);}
.timeline-card h3{font-size:20px;margin-bottom:8px;transition:color .25s ease;}
.timeline-card p{color:var(--muted);font-size:15px;margin:0;}
.timeline-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.chip{
  display:inline-block;font-size:12px;line-height:1;
  padding:6px 12px;border-radius:999px;
  background:var(--jade);color:var(--brand);font-weight:600;
}
.chip-orange{background:rgba(224,122,63,.14);color:#B95E28;}

/* ============ 对比表 ============ */
.table-wrap{
  overflow-x:auto;border-radius:var(--radius-card);
  box-shadow:var(--shadow);background:#fff;
  border:1px solid var(--line);
}
table.compare-table{width:100%;border-collapse:collapse;min-width:720px;}
table.compare-table thead th{
  background:var(--brand-deep);color:#fff;
  font-size:15px;font-weight:600;text-align:left;
  padding:18px 22px;white-space:nowrap;
}
table.compare-table tbody td{
  padding:16px 22px;font-size:15px;color:var(--text);
  border-bottom:1px solid var(--line);vertical-align:top;
}
table.compare-table tbody tr:nth-child(even){background:var(--jade);}
table.compare-table tbody tr:last-child td{border-bottom:0;}
table.compare-table tbody td:first-child{font-weight:600;color:var(--brand-deep);}
table.compare-table .reco{color:#B95E28;font-weight:600;}
.table-note{font-size:13px;color:var(--muted);margin-top:16px;}

/* ============ 能力卡片 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.feature-card{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow);
  display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.feature-card:hover h3{color:var(--accent);}
.feature-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--jade);}
.feature-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease;}
.feature-card:hover .thumb img{transform:scale(1.03);}
.feature-card .body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.feature-card h3{font-size:20px;transition:color .25s ease;}
.feature-card p{font-size:15px;color:var(--muted);margin:0;}
.icon-badge{
  width:46px;height:46px;border-radius:12px;
  background:var(--jade);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:19px;
  margin-bottom:4px;
}

/* ============ 深色处理路径 ============ */
.dark-section{
  position:relative;background:var(--brand-deep);color:#fff;overflow:hidden;
  padding:var(--space-section) 0;
}
.dark-section::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  border-radius:50%;border:1px solid rgba(220,232,228,.16);
}
.dark-section::before{
  content:"";position:absolute;right:-40px;top:80px;width:300px;height:300px;
  border-radius:50%;border:1px solid rgba(220,232,228,.12);
}
.dark-section .container{position:relative;z-index:2;}
.dark-section h2{color:#fff;}
.dark-section .section-sub{color:rgba(255,255,255,.72);}
.dark-section .section-title::after{background:var(--accent);}
.step-list{display:grid;gap:18px;margin-top:6px;}
.step-list li{
  display:flex;gap:16px;align-items:flex-start;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(220,232,228,.16);
  border-radius:var(--radius-card);
  padding:20px 22px;
  transition:background .25s ease,border-color .25s ease,transform .25s ease;
}
.step-list li:hover{background:rgba(255,255,255,.1);border-color:rgba(224,122,63,.5);transform:translateY(-2px);}
.step-list .idx{
  flex-shrink:0;width:34px;height:34px;border-radius:10px;
  background:var(--accent);color:#fff;font-weight:700;font-size:14px;
  display:flex;align-items:center;justify-content:center;
}
.step-list strong{display:block;font-size:17px;color:#fff;margin-bottom:4px;}
.step-list span{font-size:14.5px;color:rgba(255,255,255,.74);line-height:1.7;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;}
.accordion-item{
  background:#fff;border:1px solid var(--line)!important;
  border-radius:var(--radius-card)!important;
  margin-bottom:14px;overflow:hidden;
  box-shadow:var(--shadow);
}
.accordion-button{
  background:transparent!important;
  color:var(--text);
  font-size:17px;font-weight:600;
  padding:22px 24px;
  box-shadow:none!important;
  border-radius:var(--radius-card)!important;
  transition:color .25s ease;
}
.accordion-button:hover{color:var(--brand);}
.accordion-button:not(.collapsed){color:var(--accent)!important;}
.accordion-button::after{
  content:"";width:9px;height:9px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  transform:rotate(45deg);
  background-image:none!important;
  margin-left:auto;
  transition:transform .25s ease;
  flex-shrink:0;
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.accordion-body{
  padding:0 24px 24px;
  color:var(--muted);font-size:15.5px;line-height:1.8;
  max-width:720px;
}

/* ============ CTA + 表单 ============ */
.cta-panel{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow);
  overflow:hidden;display:grid;grid-template-columns:1fr 1fr;
}
.cta-copy{
  padding:48px 44px;
  background:linear-gradient(160deg,var(--jade) 0%,#fff 100%);
}
.cta-copy h2{font-size:30px;margin-bottom:16px;}
.cta-copy p{color:var(--muted);font-size:15.5px;}
.cta-copy ul{display:grid;gap:12px;margin-top:22px;}
.cta-copy ul li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text);}
.cta-copy ul li i{color:var(--accent);margin-top:5px;font-size:13px;}
.cta-form{padding:44px;}
.cta-form .field{margin-bottom:18px;}
.cta-form label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--brand-deep);}
.cta-form input,.cta-form select,.cta-form textarea{
  width:100%;height:48px;padding:0 16px;
  background:#fff;border:1px solid var(--jade);
  border-radius:var(--radius-input);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.cta-form textarea{height:auto;min-height:96px;padding:14px 16px;resize:vertical;line-height:1.7;}
.cta-form input:focus,.cta-form select:focus,.cta-form textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(224,122,63,.16);
}
.form-hint{font-size:12.5px;color:var(--muted);margin-top:12px;}
.form-btn{
  width:100%;height:52px;border-radius:var(--radius-btn);
  background:var(--brand);color:#fff;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:center;gap:10px;
  transition:background .25s ease,transform .25s ease,box-shadow .25s ease;
}
.form-btn:hover{background:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-hover);}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:70px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px;}
.footer-brand .brand-mark{margin-bottom:16px;}
.footer-brand strong{display:block;font-size:18px;color:var(--brand-deep);margin-bottom:12px;}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;max-width:340px;}
.footer-col h4{font-size:15px;color:var(--brand-deep);margin-bottom:18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col ul li a{font-size:14.5px;color:var(--muted);}
.footer-col ul li a:hover{color:var(--accent);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 28px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13.5px;color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  h1{font-size:44px;}
  .page-hero h1{font-size:42px;}
}
@media (max-width:1199px){
  .nav-menu li a{padding:10px 10px;font-size:14.5px;}
  .section-title{font-size:31px;}
}
@media (max-width:991px){
  body{padding-top:66px;}
  .site-header{height:66px;}
  .header-inner{height:66px;}
  .nav-menu,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:68px 0;}
  .page-hero{padding:60px 0 70px;}
  .page-hero h1{font-size:36px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .cta-panel{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .footer-brand{grid-column:1/-1;}
}
@media (max-width:767px){
  h1{font-size:32px;}
  h2{font-size:27px;}
  .section-title{font-size:26px;}
  .section{padding:52px 0;}
  .container{padding:0 16px;}
  .page-hero{padding:48px 0 58px;}
  .page-hero h1{font-size:31px;}
  .page-hero .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .btn-main,.btn-ghost{justify-content:center;}
  .hero-stats{gap:26px;margin-top:34px;}
  .hero-stats .stat strong{font-size:22px;}
  .grid-3{grid-template-columns:1fr;}
  .section-head{margin-bottom:34px;}
  .timeline::before{left:19px;}
  .timeline-item{padding-left:62px;margin-bottom:22px;}
  .timeline-item .num{width:40px;height:40px;font-size:14px;}
  .cta-copy{padding:34px 24px;}
  .cta-form{padding:30px 24px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .page-hero h1{font-size:28px;}
  .brand-text .line-1{font-size:13px;}
  .brand-text .line-2{font-size:12px;}
  .timeline-card{padding:20px 18px;}
  .accordion-button{font-size:15.5px;padding:18px;}
  .accordion-body{padding:0 18px 20px;}
}

/* roulang page: category4 */
:root{
  --primary:#0E5A5A;
  --primary-deep:#0B3C3C;
  --accent:#E07A3F;
  --accent-soft:rgba(224,122,63,.12);
  --jade:#DCE8E4;
  --jade-soft:rgba(220,232,228,.55);
  --bg:#F6F7F5;
  --surface:#FFFFFF;
  --text:#1C1F1D;
  --muted:#5A625E;
  --border:rgba(14,90,90,.12);
  --border-strong:rgba(14,90,90,.22);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 8px 24px rgba(14,90,90,.08);
  --shadow-hover:0 12px 32px rgba(14,90,90,.14);
  --gap-section:96px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .25s ease,background-color .25s ease,border-color .25s ease}
a:hover{color:var(--accent)}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{font-weight:700;line-height:1.25;color:var(--text);margin:0 0 16px}
h1{font-size:clamp(30px,4.2vw,46px);font-weight:700}
h2{font-size:clamp(24px,2.9vw,34px)}
h3{font-size:clamp(19px,2vw,22px);font-weight:600}
p{margin:0 0 16px}
.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%}
.section{padding:var(--gap-section) 0}
.section-tight{padding:64px 0}
.section-dark{background:var(--primary-deep);color:#fff}
.section-dark h2,.section-dark h3{color:#fff}
.section-jade{background:var(--jade-soft)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
  text-align:center;
}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-brand{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 6px 18px rgba(14,90,90,.18)}
.btn-brand:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-1px);box-shadow:0 10px 26px rgba(224,122,63,.26)}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}
.btn-ghost-light{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost-light:hover{background:rgba(255,255,255,.16);color:#fff;border-color:#fff}
.btn-sm-header{padding:9px 18px;font-size:14px}
.btn-block{width:100%}

/* ===== 徽章 / 标签 ===== */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.6;
  background:var(--jade);color:var(--primary);
}
.badge-accent{background:var(--accent);color:#fff}
.badge-outline{background:transparent;border:1px solid var(--border-strong);color:var(--primary)}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:74px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand:hover{color:var(--primary)}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary) 0%,#14706F 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16.5px;font-weight:700;color:var(--text);letter-spacing:.2px}
.brand-text small{font-size:12px;color:var(--muted);letter-spacing:.3px}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu li{position:relative}
.nav-menu a{
  position:relative;display:block;
  padding:9px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--muted);
  transition:color .25s ease,background-color .25s ease;
  white-space:nowrap;
}
.nav-menu a:hover{color:var(--primary);background:rgba(14,90,90,.06)}
.nav-menu a.active{color:var(--primary);font-weight:600}
.nav-menu a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  background:var(--accent);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--border);background:#fff;padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--primary);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.drawer-close{
  display:none;position:absolute;top:18px;right:18px;
  width:40px;height:40px;border-radius:10px;border:1px solid var(--border);
  background:#fff;color:var(--primary);font-size:22px;line-height:1;cursor:pointer;
}
.nav-backdrop{
  position:fixed;inset:0;background:rgba(11,60,60,.42);
  z-index:1045;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.nav-backdrop.show{opacity:1;visibility:visible}

/* ===== 页面首屏 ===== */
.page-hero{position:relative;overflow:hidden;background:var(--primary-deep);color:#fff;padding:92px 0 76px}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.24}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(11,60,60,.95) 0%,rgba(14,90,90,.74) 58%,rgba(11,60,60,.9) 100%);
}
.page-hero-inner{position:relative;z-index:2}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:22px}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff}
.crumb span.sep{opacity:.5}
.hero-tag{
  display:inline-flex;align-items:center;
  padding:5px 14px;border-radius:999px;margin-bottom:18px;
  background:rgba(224,122,63,.18);border:1px solid rgba(224,122,63,.48);
  color:#F6C7A4;font-size:13px;font-weight:600;letter-spacing:.4px;
}
.page-hero h1{color:#fff;margin-bottom:16px;max-width:900px}
.hero-sub{font-size:17px;color:rgba(255,255,255,.86);max-width:660px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ===== 板块标题 ===== */
.section-head{max-width:760px;margin-bottom:52px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:1.6px;
  color:var(--accent);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{position:relative;padding-bottom:16px;margin-bottom:16px}
.section-head h2::after{
  content:"";position:absolute;left:0;bottom:0;width:52px;height:3px;
  background:var(--accent);border-radius:3px;
}
.section-head.center h2::after{left:50%;transform:translateX(-50%)}
.section-head p{color:var(--muted);font-size:16px;margin:0}
.section-dark .section-head p{color:rgba(255,255,255,.76)}
.section-dark .eyebrow{color:#F0A876}

/* ===== 分栏 + 表单 ===== */
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.split-copy h2{margin-bottom:18px}
.split-copy p{color:var(--muted)}
.point-list{margin:26px 0 30px;display:grid;gap:14px}
.point-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:16px 18px;
  box-shadow:0 4px 14px rgba(14,90,90,.05);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.point-list li:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);border-color:var(--border-strong)}
.point-list .dot{
  width:26px;height:26px;flex:0 0 26px;border-radius:50%;
  background:var(--accent);color:#fff;font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;margin-top:2px;
}
.point-list strong{display:block;font-size:15.5px;font-weight:600;margin-bottom:2px}
.point-list span{font-size:14px;color:var(--muted);line-height:1.7}

.ask-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:34px 30px;
  box-shadow:var(--shadow-sm);
}
.ask-card h3{margin-bottom:8px}
.ask-hint{font-size:14px;color:var(--muted);margin-bottom:24px}
.form-alert{
  border-radius:10px;padding:12px 16px;font-size:14px;margin-bottom:20px;
  border:1px solid transparent;
}
.form-alert.ok{background:var(--jade);color:var(--primary);border-color:var(--border-strong)}
.form-alert.warn{background:var(--accent-soft);color:#B4562A;border-color:rgba(224,122,63,.4)}
.form-label{font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px;display:block}
.form-control,.form-select{
  height:48px;border-radius:10px;border:1px solid var(--border);
  background:#fff;font-size:15px;color:var(--text);padding:0 14px;
  transition:border-color .25s ease,box-shadow .25s ease;
  box-shadow:none;
}
.form-control:focus,.form-select:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(224,122,63,.16);
  outline:none;
}
.form-control::placeholder{color:#A7AFAB}
textarea.form-control{height:auto;min-height:132px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-note{font-size:12.5px;color:var(--muted);margin:14px 0 0}

/* ===== 卡片网格 ===== */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.info-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--border-strong)}
.info-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--jade)}
.info-card .thumb img{width:100%;height:100%;object-fit:cover}
.info-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.info-card h3{font-size:18px;margin-bottom:10px;transition:color .25s ease}
.info-card:hover h3{color:var(--accent)}
.info-card p{font-size:14.5px;color:var(--muted);margin-bottom:18px;flex:1}
.info-card .card-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.info-card .card-link::after{content:"→";transition:transform .25s ease}
.info-card:hover .card-link::after{transform:translateX(4px)}

/* ===== 流程 ===== */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-item{
  position:relative;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius-card);
  padding:30px 24px 28px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.flow-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--border-strong)}
.flow-num{
  width:40px;height:40px;border-radius:50%;
  background:var(--accent);color:#fff;font-weight:700;font-size:16px;
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.flow-item h3{font-size:18px;margin-bottom:10px}
.flow-item p{font-size:14.5px;color:var(--muted);margin:0}
.flow-item::before{
  content:"";position:absolute;top:50px;right:-24px;width:24px;height:2px;
  background:var(--jade);z-index:1;
}
.flow-item:last-child::before{display:none}

/* ===== FAQ ===== */
.faq-wrap{max-width:880px;margin:0 auto}
.accordion-item{
  background:var(--surface);border:1px solid var(--border) !important;
  border-radius:var(--radius-card) !important;margin-bottom:14px;overflow:hidden;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.accordion-item:hover{border-color:var(--border-strong) !important;box-shadow:var(--shadow-sm)}
.accordion-button{
  background:transparent;color:var(--text);
  font-size:16.5px;font-weight:600;line-height:1.5;
  padding:22px 56px 22px 24px;box-shadow:none;border:0;
  border-radius:var(--radius-card) !important;
}
.accordion-button:not(.collapsed){color:var(--accent);background:transparent;box-shadow:none}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--accent);outline-offset:-2px}
.accordion-button::after{
  width:18px;height:18px;background-size:18px;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230E5A5A'%3E%3Cpath d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2z'/%3E%3C/svg%3E");
  transition:transform .3s ease,background-image .3s ease;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23E07A3F'%3E%3Cpath d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2z'/%3E%3C/svg%3E");
}
.accordion-body{
  padding:0 56px 24px 24px;font-size:15px;line-height:1.8;color:var(--muted);
  max-width:720px;
}

/* ===== CTA ===== */
.cta-band{position:relative;overflow:hidden;background:var(--primary-deep);color:#fff;border-radius:18px;padding:56px 48px}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.78);margin-bottom:26px;max-width:620px}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);background:radial-gradient(circle,rgba(224,122,63,.18),transparent 68%);
}
.cta-band .cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr 1fr;gap:36px;align-items:center}
.cta-stats{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.stat-box{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:18px 20px}
.stat-box strong{display:block;font-size:26px;font-weight:700;color:#fff;line-height:1.2}
.stat-box span{font-size:13px;color:rgba(255,255,255,.72)}

/* ===== 页脚 ===== */
.site-footer{background:#0B2F2F;color:rgba(255,255,255,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.footer-brand .brand-mark{margin-bottom:16px}
.footer-brand strong{display:block;color:#fff;font-size:17px;font-weight:700;margin-bottom:12px}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.64);margin:0;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-col ul{display:grid;gap:12px}
.footer-col a{color:rgba(255,255,255,.7);font-size:14px}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.56);
}

/* ===== 响应式 ===== */
@media (max-width:1399.98px){
  .card-grid{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:1199.98px){
  .card-grid{grid-template-columns:repeat(3,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow-item::before{display:none}
}
@media (max-width:991.98px){
  :root{--gap-section:64px}
  .nav-toggle{display:flex}
  .drawer-close{display:block}
  .nav-menu{
    position:fixed;top:0;right:0;height:100vh;width:min(84vw,340px);
    background:#fff;flex-direction:column;align-items:stretch;
    padding:82px 22px 32px;gap:6px;
    transform:translateX(105%);transition:transform .32s ease;
    box-shadow:-16px 0 40px rgba(14,90,90,.14);
    z-index:1046;overflow-y:auto;
  }
  body.nav-open .nav-menu{transform:translateX(0)}
  .nav-menu a{padding:14px 16px;font-size:17px;border-radius:10px}
  .nav-menu a.active{background:var(--jade);color:var(--primary)}
  .nav-menu a.active::after{display:none}
  .nav-menu a.active{border-left:3px solid var(--accent);padding-left:13px}
  .split-grid{grid-template-columns:1fr;gap:36px}
  .cta-band .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-hero{padding:70px 0 60px}
}
@media (max-width:767.98px){
  :root{--gap-section:56px}
  .container{padding-left:16px;padding-right:16px}
  .header-inner{height:66px;gap:14px}
  .brand-text small{display:none}
  .brand-text strong{font-size:15px}
  .brand-mark{width:40px;height:40px;flex:0 0 40px;font-size:14px}
  .header-actions .btn-sm-header{display:none}
  .btn{padding:11px 20px;font-size:14.5px;width:auto}
  .hero-actions .btn{flex:1 1 auto;min-width:140px}
  .card-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .ask-card{padding:26px 20px}
  .cta-band{padding:38px 24px;border-radius:14px}
  .cta-stats{grid-template-columns:1fr 1fr}
  .accordion-button{font-size:15.5px;padding:18px 48px 18px 18px}
  .accordion-body{padding:0 20px 20px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column}
  .section-head{margin-bottom:36px}
}
@media (max-width:520px){
  .brand-text strong{font-size:14px;max-width:150px;line-height:1.3}
  .cta-stats{grid-template-columns:1fr}
  .point-list li{flex-direction:row}
  .stat-box strong{font-size:22px}
}