/* roulang page: index */
:root{
  --brand-900:#0E4F4A;
  --brand-700:#12655F;
  --brand-500:#1B8A7E;
  --brand-100:#E9F1EE;
  --accent-600:#C2603A;
  --accent-500:#D97544;
  --accent-100:#FBEDE4;
  --alert:#C0453A;
  --bg:#F6F7F4;
  --surface:#FFFFFF;
  --surface-soft:#EDF2F1;
  --ink:#17201F;
  --ink-2:#4E5C59;
  --ink-3:#8A9895;
  --line:#DFE6E2;
  --split:#EDF1EF;
  --radius-card:14px;
  --radius-block:20px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(23,32,31,.04);
  --shadow-card:0 10px 28px -14px rgba(23,32,31,.18);
  --shadow-nav:0 6px 20px -12px rgba(23,32,31,.16);
  --space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;--space-9:96px;
  --bs-primary:#1B8A7E;
  --bs-body-bg:#F6F7F4;
  --bs-body-color:#17201F;
  --bs-border-color:#DFE6E2;
  --bs-border-radius:14px;
  --bs-link-color:#12655F;
  --bs-link-hover-color:#1B8A7E;
  --bs-font-sans-serif:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;object-fit:cover;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--brand-500);}
button{font-family:inherit;}
h1,h2,h3,h4{font-weight:700;line-height:1.35;color:var(--ink);margin:0;}
h1{font-size:clamp(28px,4vw,44px);line-height:1.3;}
h2{font-size:clamp(22px,2.6vw,32px);}
h3{font-size:20px;font-weight:600;line-height:1.5;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;padding-inline:24px;}
@media (min-width:1400px){.container{max-width:1280px;}}
@media (max-width:767px){.container{padding-inline:16px;}}
.section{padding-block:80px;}
.section--soft{background:var(--surface-soft);}
.section--white{background:var(--surface);}
.section + .section{border-top:1px solid var(--split);}
@media (max-width:767px){.section{padding-block:48px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.nav-wrap{display:flex;align-items:center;gap:var(--space-5);min-height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(150deg,var(--brand-500),var(--brand-900));
  color:#fff;font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.brand:hover .brand-text{color:var(--brand-700);}
.nav-links{display:flex;align-items:center;gap:var(--space-5);margin-left:auto;}
.nav-links a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 2px;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--brand-500);transition:left .22s ease,right .22s ease;
}
.nav-links a:hover{color:var(--brand-700);}
.nav-links a:hover::after{left:0;right:0;}
.nav-links a.active{color:var(--brand-700);font-weight:700;}
.nav-links a.active::after{left:0;right:0;}
.nav-actions{display:flex;align-items:center;gap:var(--space-3);margin-left:var(--space-5);}
.btn-nav{
  display:inline-flex;align-items:center;gap:6px;
  height:42px;padding:0 20px;font-size:15px;font-weight:600;
}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  background:#fff;border-radius:10px;color:var(--ink-2);
  align-items:center;justify-content:center;font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand-500);color:var(--brand-700);}
.mobile-panel{
  display:none;border-top:1px solid var(--split);background:#fff;
  padding:var(--space-4) 0 var(--space-5);
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:block;padding:12px 4px;font-size:16px;color:var(--ink-2);
  border-bottom:1px solid var(--split);
}
.mobile-panel a:last-child{border-bottom:0;color:var(--brand-700);font-weight:600;}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-actions{margin-left:auto;}
  .nav-toggle{display:inline-flex;}
}
@media (max-width:575px){
  .brand-text{font-size:16px;}
  .btn-nav{height:38px;padding:0 14px;font-size:14px;}
}

/* ---------- buttons ---------- */
.btn-brand,.btn-outline-brand,.btn-accent,.btn-invert{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  padding:0 24px;height:44px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
  text-align:center;
}
.btn-brand{background:var(--brand-700);color:#fff;border-color:var(--brand-700);}
.btn-brand:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;transform:translateY(-1px);}
.btn-brand:active{transform:translateY(0);}
.btn-outline-brand{background:transparent;color:var(--brand-700);border-color:var(--brand-500);}
.btn-outline-brand:hover{background:var(--brand-100);border-color:var(--brand-700);color:var(--brand-900);}
.btn-accent{background:var(--accent-500);color:#fff;border-color:var(--accent-500);}
.btn-accent:hover{background:var(--accent-600);border-color:var(--accent-600);color:#fff;transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);}
.btn-invert{background:#fff;color:var(--brand-900);border-color:#fff;}
.btn-invert:hover{background:var(--brand-100);color:var(--brand-900);transform:translateY(-1px);}
.btn-lg-brand{height:48px;padding:0 28px;font-size:16px;}
.btn-sm-link{font-size:14px;font-weight:600;color:var(--brand-700);white-space:nowrap;}
.btn-sm-link:hover{color:var(--brand-500);}

/* ---------- shared bits ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-700);background:var(--brand-100);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:var(--space-4);margin-bottom:var(--space-7);}
.section-head p{margin:8px 0 0;color:var(--ink-2);font-size:16px;max-width:640px;}
.section-head .head-note{font-size:14px;color:var(--ink-3);margin:0;max-width:280px;text-align:right;}
.tag{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-700);background:var(--brand-100);
  border-radius:999px;padding:3px 10px;
}
.tag--accent{color:var(--accent-600);background:var(--accent-100);}
.divider-ornament{
  height:1px;background:var(--line);position:relative;margin:0;
}
.divider-ornament::before{
  content:"";position:absolute;left:50%;top:-1px;transform:translateX(-50%);
  width:88px;height:3px;background:var(--brand-500);border-radius:2px;opacity:.7;
}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:72px 0 84px;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(102deg,rgba(246,247,244,.97) 0%,rgba(246,247,244,.90) 42%,rgba(233,241,238,.62) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
}
.hero-copy{max-width:620px;}
.hero h1{margin-bottom:16px;}
.hero h1 .hl{color:var(--brand-700);}
.hero-sub{font-size:17px;color:var(--ink-2);margin:0 0 22px;max-width:560px;}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.badge-item{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-100);color:var(--brand-900);
  border-radius:999px;padding:8px 16px;
  font-size:13px;font-weight:600;
}
.badge-item i{color:var(--brand-500);font-size:13px;}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;border-radius:var(--radius-block);
  box-shadow:0 18px 40px -22px rgba(14,79,74,.45);
  border:1px solid #fff;
}
.hero-visual .float-card{
  position:absolute;left:-18px;bottom:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:14px 18px;max-width:220px;
}
.hero-visual .float-card strong{display:block;font-size:22px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.hero-visual .float-card span{font-size:13px;color:var(--ink-3);}
@media (max-width:991px){
  .hero{padding:48px 0 56px;}
  .hero-visual{margin-top:32px;}
  .hero-visual .float-card{left:12px;bottom:12px;}
}

/* ---------- ladder ---------- */
.ladder{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:end;}
.ladder-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px 24px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.ladder-item:hover{box-shadow:var(--shadow-card);border-color:var(--brand-500);}
.ladder-item:nth-child(2){transform:translateY(-16px);}
.ladder-item:nth-child(3){transform:translateY(-32px);}
.ladder-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:var(--brand-100);color:var(--brand-900);
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.ladder-item h3{margin-bottom:6px;}
.ladder-for{font-size:13px;color:var(--ink-3);margin:0 0 16px;}
.ladder-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);margin-bottom:8px;
}
.ladder-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;
  background:var(--brand-500);opacity:.75;
}
.ladder-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;margin-top:8px;}
@media (max-width:991px){
  .ladder{grid-template-columns:1fr;}
  .ladder-item:nth-child(2),.ladder-item:nth-child(3){transform:none;}
}

/* ---------- compare ---------- */
.compare-matrix{
  display:grid;grid-template-columns:1.25fr 1fr 1fr 1fr;
  border:1px solid var(--line);border-radius:var(--radius-block);
  background:#fff;overflow:hidden;box-shadow:var(--shadow-1);
}
.cmp-cell{padding:16px 20px;border-bottom:1px solid var(--split);font-size:15px;color:var(--ink-2);}
.cmp-cell:nth-last-child(-n+4){border-bottom:0;}
.cmp-row-name{background:var(--surface-soft);font-weight:600;color:var(--ink);}
.cmp-head{background:#fff;border-bottom:1px solid var(--line);padding:24px 20px 20px;position:relative;text-align:center;}
.cmp-head .plan-name{font-size:16px;font-weight:600;color:var(--ink);display:block;margin-bottom:6px;}
.cmp-head .plan-price{font-size:28px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.2;}
.cmp-head .plan-price small{font-size:13px;font-weight:500;color:var(--ink-3);margin-left:2px;}
.cmp-head .plan-desc{display:block;font-size:13px;color:var(--ink-3);margin-top:6px;}
.cmp-col-recommended{background:#FCFDFC;border-left:2px solid var(--brand-700);border-right:2px solid var(--brand-700);}
.cmp-head.cmp-col-recommended{transform:translateY(-8px);box-shadow:0 12px 26px -18px rgba(14,79,74,.5);}
.cmp-head.cmp-col-recommended::before{
  content:"推荐";
  position:absolute;top:0;left:50%;transform:translate(-50%,-50%);
  background:var(--brand-700);color:#fff;font-size:12px;font-weight:600;letter-spacing:.04em;
  border-radius:999px;padding:4px 14px;
}
.cmp-foot{padding:20px;text-align:center;border-bottom:0;}
.cmp-check{color:var(--brand-500);margin-right:6px;}
.cmp-matrix-foot{border-radius:0;}
.compare-cards{display:none;}
.plan-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 20px;margin-bottom:16px;box-shadow:var(--shadow-1);
}
.plan-card.is-rec{border-width:2px;border-color:var(--brand-700);}
.plan-card .plan-price{font-size:28px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.plan-card .spec-row{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--ink-2);padding:8px 0;border-bottom:1px solid var(--split);}
.plan-card .spec-row:last-of-type{border-bottom:0;}
.plan-card .spec-row span:first-child{color:var(--ink-3);}
@media (max-width:767px){
  .compare-matrix{display:none;}
  .compare-cards{display:block;}
}

/* ---------- promo strip ---------- */
.promo-strip{
  background:var(--brand-900);color:#fff;border-radius:var(--radius-block);
  padding:36px 40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  min-height:200px;
}
.promo-strip h2{color:#fff;}
.promo-strip p{margin:8px 0 0;color:rgba(255,255,255,.78);font-size:15px;}
.promo-right{display:flex;flex-wrap:wrap;align-items:center;gap:18px;}
.countdown{display:flex;gap:10px;}
.countdown span{
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;
  min-width:64px;padding:8px 6px;border-radius:12px;
  background:rgba(255,255,255,.14);color:#fff;
  font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.2;
  border:1px solid rgba(255,255,255,.18);
}
.countdown span em{font-style:normal;font-size:12px;font-weight:500;color:rgba(255,255,255,.72);}
@media (max-width:767px){
  .promo-strip{padding:28px 22px;}
  .countdown span{min-width:54px;font-size:17px;}
}

/* ---------- consult ---------- */
.consult-points li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--ink-2);
}
.consult-points li:last-child{border-bottom:0;}
.consult-points i{color:var(--brand-500);margin-top:5px;}
.consult-points strong{display:block;color:var(--ink);font-weight:600;font-size:16px;}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-block);
  padding:28px;box-shadow:var(--shadow-1);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:500;color:var(--ink-2);margin-bottom:6px;}
.field .form-control,.field .form-select{
  width:100%;height:44px;border:1px solid var(--line);border-radius:var(--radius-input);
  padding:0 14px;font-size:15px;color:var(--ink);background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea.form-control{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field .form-control:focus,.field .form-select:focus{
  border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(27,138,126,.16);outline:none;
}
.field .form-control::placeholder{color:var(--ink-3);}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-3);margin:6px 0 20px;}
.consent input{margin-top:5px;accent-color:var(--brand-500);}
.form-note{font-size:13px;color:var(--ink-3);margin:12px 0 0;}
@media (max-width:767px){
  .form-card{padding:20px;}
  .form-card .btn-brand{width:100%;}
}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:1.65fr 1fr;gap:28px;align-items:start;}
.news-main{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;height:100%;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card);border-color:var(--brand-500);}
.news-cover{display:block;overflow:hidden;aspect-ratio:16/9;background:var(--surface-soft);}
.news-cover img{width:100%;height:100%;transition:transform .35s ease;}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.news-body h3{font-size:17px;margin:10px 0 8px;line-height:1.5;}
.news-body h3 a{color:var(--ink);}
.news-body h3 a:hover{color:var(--brand-700);}
.news-summary{
  font-size:14px;color:var(--ink-2);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-3);}
.news-side{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:8px 20px 16px;box-shadow:var(--shadow-1);}
.news-side-item{display:block;padding:16px 0;border-bottom:1px solid var(--split);}
.news-side-item:last-child{border-bottom:0;}
.news-side-item h4{font-size:15px;font-weight:600;margin:8px 0 6px;color:var(--ink);line-height:1.55;}
.news-side-item:hover h4{color:var(--brand-700);}
.news-side-item p{
  font-size:13px;color:var(--ink-2);margin:0 0 8px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.news-side-item .news-meta{font-size:12px;}
.empty-news{
  background:var(--brand-100);border-radius:var(--radius-card);
  padding:40px 28px;text-align:center;color:var(--ink-2);
}
.empty-news p{margin:0 0 16px;font-size:15px;}
@media (max-width:991px){
  .news-grid{grid-template-columns:1fr;}
  .news-main{grid-template-columns:1fr 1fr;}
}
@media (max-width:575px){
  .news-main{grid-template-columns:1fr;}
}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-wrap .accordion-item{
  border:1px solid var(--line);border-radius:var(--radius-card)!important;
  background:#fff;margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-1);
}
.faq-wrap .accordion-button{
  background:#fff;color:var(--ink);font-size:16px;font-weight:600;
  padding:20px 22px;box-shadow:none;border:0;
}
.faq-wrap .accordion-button:not(.collapsed){color:var(--brand-700);background:var(--brand-100);}
.faq-wrap .accordion-button:focus{box-shadow:none;border:0;}
.faq-wrap .accordion-button::after{display:none;}
.faq-plus{
  margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--brand-100);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;transition:transform .18s ease,background-color .18s ease;
}
.accordion-button:not(.collapsed) .faq-plus{transform:rotate(45deg);background:#fff;}
.faq-wrap .accordion-body{padding:4px 22px 22px;font-size:15px;color:var(--ink-2);line-height:1.85;}
.accordion-collapse{transition:height .18s ease;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-100);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-text{font-size:18px;}
.footer-brand p{font-size:14px;color:var(--ink-2);margin:16px 0 0;max-width:320px;}
.footer-title{font-size:14px;font-weight:600;color:var(--ink);margin:0 0 16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:var(--ink-2);}
.footer-links a:hover{color:var(--brand-700);}
.footer-contact li{font-size:14px;color:var(--ink-2);margin-bottom:10px;display:flex;gap:8px;align-items:flex-start;}
.footer-contact i{color:var(--brand-500);margin-top:6px;font-size:13px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(14,79,74,.12);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:12px;color:var(--ink-3);
}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr;}}
@media (max-width:575px){.section-head .head-note{text-align:left;}}

/* roulang page: article */
:root{
  --brand-900:#0E4F4A;--brand-700:#12655F;--brand-500:#1B8A7E;--brand-100:#E9F1EE;
  --accent-600:#C2603A;--accent-500:#D97544;--accent-100:#FBEDE4;
  --alert:#C0453A;
  --bg:#F6F7F4;--card:#FFFFFF;--soft:#EDF2F1;
  --ink:#17201F;--ink-2:#4E5C59;--ink-3:#8A9895;
  --line:#DFE6E2;--divider:#EDF1EF;
  --r-card:14px;--r-block:20px;--r-btn:10px;--r-lg:12px;
  --sh-1:0 1px 2px rgba(23,32,31,.04);
  --sh-2:0 10px 28px -14px rgba(23,32,31,.18);
  --sh-nav:0 6px 20px -12px rgba(23,32,31,.16);
  --sans:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-primary:#12655F;--bs-body-bg:#F6F7F4;--bs-body-color:#17201F;
  --bs-border-color:#DFE6E2;--bs-border-radius:14px;--bs-link-color:#12655F;
  --bs-link-hover-color:#1B8A7E;--bs-font-sans-serif:var(--sans);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--sans);background:var(--bg);color:var(--ink);
  font-size:16px;line-height:1.85;font-weight:400;letter-spacing:.005em;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--brand-500)}
ul,ol{margin:0;padding:0}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.35}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1280px}}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .22s ease}
.site-header.is-scrolled{box-shadow:var(--sh-nav)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--brand-700);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;letter-spacing:.02em}
.brand-text{font-size:18px;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav-links a{position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:7px 0;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:50%;bottom:0;height:2px;width:0;background:var(--brand-500);transform:translateX(-50%);transition:width .2s ease}
.nav-links a:hover{color:var(--brand-700)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--brand-700);font-weight:700}
.nav-links a.active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn-cta{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;border-radius:10px;background:var(--accent-500);color:#fff;font-weight:600;font-size:15px;box-shadow:var(--sh-1);transition:transform .18s ease,background-color .18s ease}
.btn-cta i{font-size:13px;opacity:.92}
.btn-cta:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px)}
.btn-cta:active{transform:translateY(0)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink-2);align-items:center;justify-content:center}
.nav-toggle:hover{border-color:var(--brand-500);color:var(--brand-700)}
.mobile-nav{display:none;border-top:1px solid var(--divider);background:#fff;padding:6px 0 14px}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;padding:12px 24px;font-size:15px;color:var(--ink-2);border-bottom:1px solid var(--divider)}
.mobile-nav a:last-child{border-bottom:0}
.mobile-nav a.active{color:var(--brand-700);font-weight:700}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px;gap:12px}
  .brand-text{font-size:16px}
  .btn-cta{height:38px;padding:0 14px;font-size:14px}
  .btn-cta span{display:none}
}
@media (max-width:400px){.brand-text{font-size:15px;white-space:normal;line-height:1.2}}

/* ============ banner ============ */
.page-banner{
  position:relative;padding:30px 0;border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(233,241,238,.97) 0%,rgba(233,241,238,.80) 48%,rgba(237,242,241,.42) 100%),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3)}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand-700)}
.crumb .sep{color:#C3CDC9}
.crumb .current{color:var(--brand-700);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ buttons ============ */
.btn-solid,.btn-ghost,.btn-invert{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease}
.btn-solid{height:48px;padding:0 28px;background:var(--brand-700);color:#fff;box-shadow:var(--sh-1)}
.btn-solid:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px)}
.btn-solid:active{transform:translateY(0)}
.btn-ghost{height:44px;padding:0 22px;background:#fff;border-color:var(--brand-700);color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-100);border-color:var(--brand-700);color:var(--brand-700)}
.btn-invert{height:48px;padding:0 26px;background:#fff;color:var(--brand-900)}
.btn-invert:hover{background:var(--brand-100);color:var(--brand-900);transform:translateY(-1px)}

/* ============ article layout ============ */
.article-shell{padding:48px 0 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 200px;gap:56px;align-items:start}
.article-main{max-width:820px;min-width:0}
.article-head{padding-bottom:22px;border-bottom:1px solid var(--divider)}
.badge-cat{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:600;letter-spacing:.04em}
.article-head h1{margin:16px 0 14px;font-size:clamp(26px,3.4vw,40px);line-height:1.32;font-weight:700;max-width:820px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-3)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3CDC9;display:inline-block}
.article-meta i{color:var(--brand-500);margin-right:4px;font-size:12px}
.article-lead{margin-top:18px;padding:18px 20px;background:var(--soft);border-radius:var(--r-lg);color:var(--ink-2);font-size:15px;line-height:1.85}

/* 正文排版 */
.article-body{padding:28px 0 8px;font-size:16px;line-height:1.9;color:var(--ink)}
.article-body p{margin:0 0 1.2em}
.article-body h2{position:relative;margin:36px 0 14px;padding-left:14px;font-size:clamp(20px,2.1vw,26px);line-height:1.45;font-weight:700}
.article-body h2::before{content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:4px;border-radius:2px;background:var(--brand-500)}
.article-body h3{margin:24px 0 10px;font-size:20px;font-weight:600;line-height:1.5}
.article-body h4{margin:20px 0 10px;font-size:17px;font-weight:600}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-500)}
.article-body strong{font-weight:700}
.article-body blockquote{margin:20px 0;padding:16px;border-left:3px solid var(--brand-500);background:var(--brand-100);border-radius:0 12px 12px 0;color:var(--ink-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul{list-style:none;margin:0 0 1.2em;padding:0}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:8px}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--brand-500)}
.article-body ol{margin:0 0 1.2em;padding-left:24px}
.article-body ol li{margin-bottom:8px}
.article-body img{border-radius:12px;margin:20px auto;width:100%;height:auto}
.article-body figure{margin:20px 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px;line-height:1.7}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top}
.article-body thead th{background:var(--soft);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFBFA}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:32px 0}
.article-body code{background:var(--soft);border-radius:6px;padding:2px 6px;font-size:14px}

/* 空态 */
.empty-state{margin:16px 0 8px;padding:56px 24px;background:var(--brand-100);border-radius:var(--r-block);text-align:center}
.empty-state i{font-size:26px;color:var(--brand-500)}
.empty-state h2{margin:14px 0 8px;font-size:20px;padding:0}
.empty-state h2::before{display:none}
.empty-state p{color:var(--ink-2);margin-bottom:20px}

/* 目录 */
.article-side{position:relative}
.toc-card{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px;box-shadow:var(--sh-1)}
.toc-title{margin:0 0 10px;font-size:13px;font-weight:600;color:var(--ink-2);letter-spacing:.04em}
.toc-card ol{list-style:none;margin:0;padding:0;border-left:2px solid var(--divider)}
.toc-card a{display:block;font-size:13px;line-height:1.6;padding:6px 0 6px 12px;margin-left:-2px;color:var(--ink-2);border-left:2px solid transparent}
.toc-card a:hover{color:var(--brand-700);border-left-color:var(--brand-500)}
.toc-card a.is-active{color:var(--brand-700);font-weight:600;border-left-color:var(--brand-500)}
@media (max-width:1199px){.article-side{display:none}.article-layout{grid-template-columns:1fr;gap:0}.article-main{max-width:820px;margin:0 auto}}
@media (max-width:767px){.article-shell{padding:32px 0 0}.article-body{font-size:16px;line-height:1.9}}

/* ============ 延伸阅读 ============ */
.section{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.section-head h2{font-size:clamp(20px,2.2vw,28px);line-height:1.4}
.section-head p{margin:6px 0 0;color:var(--ink-3);font-size:14px}
.section-head .more{font-size:14px;color:var(--brand-700);font-weight:600;white-space:nowrap}
.section-head .more:hover{color:var(--brand-500)}
.readmore-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.readmore-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.readmore-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-500)}
.readmore-card .dir{font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--accent-600)}
.readmore-card h3{margin:8px 0 8px;font-size:18px;line-height:1.5;color:var(--ink)}
.readmore-card p{margin:0;font-size:14px;color:var(--ink-3);line-height:1.7}
@media (max-width:767px){.readmore-grid{grid-template-columns:1fr}}

/* ============ 相关推荐 ============ */
.rel-card{height:100%;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-500)}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--soft)}
.rel-thumb img{width:100%;height:100%;transition:transform .35s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.rel-body .tag{display:inline-flex;align-self:flex-start;height:24px;align-items:center;padding:0 10px;border-radius:999px;background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:600;letter-spacing:.04em}
.rel-body h3{margin:10px 0 8px;font-size:17px;line-height:1.55}
.rel-body p{margin:0 0 14px;font-size:14px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body .time{margin-top:auto;font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:6px}
.rel-empty{grid-column:1/-1;padding:40px 24px;text-align:center;background:var(--soft);border-radius:var(--r-card);color:var(--ink-3);font-size:14px}
.back-row{margin-top:32px;text-align:center}

/* ============ CTA ============ */
.cta-band{position:relative;background:linear-gradient(90deg,rgba(14,79,74,.97) 0%,rgba(14,79,74,.90) 55%,rgba(18,101,95,.80) 100%),url('/assets/images/backpic/back-3.png') center/cover no-repeat;color:#fff}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:48px 0}
.cta-inner h2{color:#fff;font-size:clamp(20px,2.2vw,28px);line-height:1.4}
.cta-inner p{margin:8px 0 0;color:rgba(255,255,255,.82);font-size:15px;max-width:620px}
@media (max-width:767px){.cta-inner{flex-direction:column;align-items:flex-start;padding:40px 0}}

/* ============ footer ============ */
.site-footer{margin-top:0;background:#17201F;color:#C9D3D0;padding:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.footer-brand .brand:hover{color:#fff}
.footer-brand .brand-mark{background:var(--brand-500)}
.footer-brand p{font-size:14px;line-height:1.85;color:#A9B6B2;max-width:330px}
.footer-title{margin:0 0 14px;font-size:14px;font-weight:600;color:#fff;letter-spacing:.02em}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#C9D3D0;font-size:14px}
.footer-links a:hover{color:#7FD6C6}
.footer-contact{list-style:none;margin:0;padding:0}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#A9B6B2;margin-bottom:12px;line-height:1.7}
.footer-contact i{color:var(--brand-500);margin-top:6px;font-size:13px}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;font-size:12px;color:#8A9895}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr;gap:28px}.footer-bottom{flex-direction:column}}

/* roulang page: category1 */
:root{
  --brand-900:#0E4F4A;
  --brand-700:#12655F;
  --brand-500:#1B8A7E;
  --brand-100:#E9F1EE;
  --accent-600:#C2603A;
  --accent-500:#D97544;
  --accent-100:#FBEDE4;
  --alert:#C0453A;
  --bg:#F6F7F4;
  --card:#FFFFFF;
  --inset:#EDF2F1;
  --ink:#17201F;
  --ink-2:#4E5C59;
  --ink-3:#8A9895;
  --line:#DFE6E2;
  --divider:#EDF1EF;
  --radius-card:14px;
  --radius-block:20px;
  --radius-btn:10px;
  --radius-btn-lg:12px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(23,32,31,.04);
  --shadow-card:0 10px 28px -14px rgba(23,32,31,.18);
  --shadow-nav:0 6px 20px -12px rgba(23,32,31,.16);

  --bs-primary:#1B8A7E;
  --bs-primary-rgb:27,138,126;
  --bs-body-bg:#F6F7F4;
  --bs-body-color:#17201F;
  --bs-border-color:#DFE6E2;
  --bs-border-radius:14px;
  --bs-link-color:#12655F;
  --bs-link-hover-color:#1B8A7E;
  --bs-font-sans-serif:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--brand-500);}
h1,h2,h3,h4{margin:0 0 14px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
h1{font-size:clamp(28px,4vw,44px);line-height:1.3;}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}

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

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1000;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:var(--shadow-nav);}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--ink);white-space:nowrap;}
.brand:hover{color:var(--brand-700);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;
}
.brand-text{letter-spacing:.01em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;display:inline-block;padding:9px 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink-2);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:4px;width:0;height:2px;
  background:var(--brand-500);transform:translateX(-50%);transition:width .22s ease;
}
.nav-links a:hover{color:var(--brand-700);}
.nav-links a:hover::after{width:calc(100% - 24px);}
.nav-links a.active{color:var(--brand-700);font-weight:700;}
.nav-links a.active::after{width:calc(100% - 24px);}
.header-actions{display:flex;align-items:center;gap:10px;}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;
  border-radius:var(--radius-btn);background:var(--accent-500);color:#fff;
  font-size:15px;font-weight:600;box-shadow:var(--shadow-1);transition:all .2s ease;
}
.btn-cta:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);}
.btn-cta i{font-size:13px;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;color:var(--ink);font-size:16px;align-items:center;justify-content:center;
}
.mobile-menu{display:none;}
.mobile-menu ul{list-style:none;padding:6px 0 2px;margin:0;}
.mobile-menu li{border-bottom:1px solid var(--divider);}
.mobile-menu li:last-child{border-bottom:0;}
.mobile-menu a{display:block;padding:13px 0;font-size:15px;color:var(--ink-2);}
.mobile-menu a.active{color:var(--brand-700);font-weight:700;}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-menu.open{display:block;border-top:1px solid var(--line);background:#fff;padding-bottom:10px;}
  .header-inner{height:64px;gap:12px;}
  .brand{font-size:16px;}
  .btn-cta{height:38px;padding:0 12px;font-size:13.5px;}
  .btn-cta span.long{display:none;}
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;transition:all .2s ease;
}
.btn i{font-size:13px;}
.btn-solid{background:var(--brand-700);color:#fff;}
.btn-solid:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);}
.btn-solid:active{transform:translateY(0);}
.btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent;}
.btn-outline:hover{background:var(--brand-100);border-color:var(--brand-700);color:var(--brand-700);}
.btn-light{background:#fff;color:var(--brand-900);height:48px;padding:0 28px;font-size:16px;border-radius:var(--radius-btn-lg);}
.btn-light:hover{background:var(--brand-100);color:var(--brand-900);transform:translateY(-1px);}
.btn-lg{height:48px;padding:0 28px;font-size:16px;border-radius:var(--radius-btn-lg);}
.btn-block{width:100%;}

/* ===== Hero ===== */
.page-hero{
  position:relative;overflow:hidden;background:var(--brand-100);
  min-height:260px;display:flex;align-items:center;padding:52px 0 56px;
}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.3;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(246,247,244,.97) 0%,rgba(246,247,244,.8) 46%,rgba(233,241,238,.5) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:840px;}
.crumb{font-size:13px;color:var(--ink-3);margin-bottom:16px;}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--brand-700);}
.crumb .sep{margin:0 8px;color:var(--line);}
.page-hero h1{font-size:clamp(26px,3.6vw,40px);margin-bottom:12px;}
.hero-line{font-size:17px;color:var(--ink-2);max-width:620px;margin-bottom:24px;}
.hero-rule{
  position:absolute;left:0;right:0;bottom:0;height:6px;
  background-image:repeating-linear-gradient(90deg,var(--brand-500) 0 2px,transparent 2px 9px);
  opacity:.38;
}

/* ===== 通用区块 ===== */
.section{padding:80px 0;}
.section-inset{background:var(--inset);}
.section-white{background:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head p{color:var(--ink-2);margin:0;font-size:16px;}
.section-head h2{margin-bottom:12px;}
.tag{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:4px 12px;border-radius:999px;background:var(--brand-100);
  color:var(--brand-700);margin-bottom:14px;
}
.lead-text{
  font-size:16.5px;line-height:1.95;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand-500);
  border-radius:var(--radius-block);padding:28px 32px;box-shadow:var(--shadow-1);
  margin:0;
}
@media (max-width:575px){
  .section{padding:48px 0;}
  .lead-text{padding:20px 18px;font-size:15.5px;}
}

/* ===== 图文交替 ===== */
.zig-row{padding:48px 0;border-top:1px solid var(--divider);align-items:center;}
.zig-row.first{border-top:0;padding-top:0;}
.zig-row:last-child{padding-bottom:0;}
.zig-media{
  border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-1);
  border:1px solid var(--line);background:var(--inset);
}
.zig-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease;}
.zig-media:hover img{transform:scale(1.03);}
.zig-body h3{margin-bottom:12px;}
.zig-body p{color:var(--ink-2);}
.zig-list{list-style:none;padding:0;margin:0;}
.zig-list li{position:relative;padding-left:22px;margin-bottom:10px;color:var(--ink-2);font-size:15.5px;}
.zig-list li:last-child{margin-bottom:0;}
.zig-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;
  border-radius:2px;background:var(--brand-500);
}
@media (max-width:767px){
  .zig-row{padding:32px 0;}
  .zig-body{margin-top:20px;}
  .zig-row.reverse .zig-media{order:0;}
}

/* ===== 步骤 ===== */
.step{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 20px;box-shadow:var(--shadow-1);transition:all .25s ease;
}
.step:hover{box-shadow:var(--shadow-card);transform:translateY(-3px);}
.step-num{
  width:38px;height:38px;border-radius:999px;background:var(--brand-100);
  color:var(--brand-700);display:grid;place-items:center;
  font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px;font-size:14px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;line-height:1.8;color:var(--ink-2);margin:0;}

/* ===== 自检清单 ===== */
.check-item{
  display:flex;gap:14px;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-1);
  transition:all .25s ease;
}
.check-item:hover{box-shadow:var(--shadow-card);}
.check-item .ico{
  width:32px;height:32px;flex:none;border-radius:9px;background:var(--brand-100);
  color:var(--brand-700);display:grid;place-items:center;font-size:13px;margin-top:2px;
}
.check-item h3{font-size:16px;margin-bottom:6px;}
.check-item p{font-size:14.5px;line-height:1.8;color:var(--ink-2);margin:0;}

/* ===== CTA 区 ===== */
.cta-band{background:var(--brand-900);color:#fff;padding:56px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{color:#fff;margin-bottom:8px;font-size:clamp(22px,2.4vw,30px);}
.cta-band p{color:rgba(255,255,255,.78);margin:0;max-width:640px;}
.cta-band .btn-light{white-space:nowrap;}
@media (max-width:575px){.cta-band{padding:44px 0;}.cta-band .btn-light{width:100%;}}

/* ===== 页脚 ===== */
.site-footer{background:#17201F;color:#C9D3D0;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.site-footer .brand{color:#fff;}
.site-footer .brand:hover{color:#fff;}
.footer-brand p{color:#98A6A2;font-size:14px;line-height:1.8;margin:18px 0 0;}
.footer-title{color:#fff;font-size:14px;font-weight:600;letter-spacing:.02em;margin:0 0 16px;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#98A6A2;font-size:14px;}
.footer-links a:hover{color:#7FD0C4;}
.footer-contact{list-style:none;padding:0;margin:0;}
.footer-contact li{display:flex;gap:10px;color:#98A6A2;font-size:14px;line-height:1.75;margin-bottom:12px;}
.footer-contact i{color:var(--brand-500);margin-top:6px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:42px;padding-top:20px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12px;color:#7F8F8B;
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:48px 0 24px;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0E4F4A;
  --brand-700:#12655F;
  --brand-500:#1B8A7E;
  --brand-100:#E9F1EE;
  --accent-600:#C2603A;
  --accent-500:#D97544;
  --accent-100:#FBEDE4;
  --alert:#C0453A;
  --bg:#F6F7F4;
  --card:#FFFFFF;
  --soft:#EDF2F1;
  --ink:#17201F;
  --ink-2:#4E5C59;
  --ink-3:#8A9895;
  --line:#DFE6E2;
  --divider:#EDF1EF;
  --radius-card:14px;
  --radius-block:20px;
  --radius-btn:10px;
  --radius-cta:12px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(23,32,31,.04);
  --shadow-hover:0 10px 28px -14px rgba(23,32,31,.18);
  --shadow-nav:0 6px 20px -12px rgba(23,32,31,.16);
  --bs-primary:#1B8A7E;
  --bs-body-bg:#F6F7F4;
  --bs-body-color:#17201F;
  --bs-border-color:#DFE6E2;
  --bs-border-radius:14px;
  --bs-link-color:#12655F;
  --bs-link-hover-color:#1B8A7E;
  --bs-font-sans-serif:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--brand-500);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{list-style:none;padding:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.container{max-width:1280px;}}
@media (max-width:767.98px){.container{padding:0 16px;}}

/* ---------- 通用排版 ---------- */
.h1{
  font-size:clamp(28px,4vw,44px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
  color:var(--ink);
}
.h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
  line-height:1.35;
  color:var(--ink);
}
.h3{font-size:20px;font-weight:600;line-height:1.5;color:var(--ink);}
.lead{font-size:17px;line-height:1.85;color:var(--ink-2);}
.text-muted-2{color:var(--ink-3);font-size:14px;line-height:1.7;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-500);
  background:var(--brand-100);
  padding:6px 12px;
  border-radius:999px;
}
.eyebrow i{font-size:11px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(0);}
.btn-primary{
  background:var(--brand-700);color:#fff;
}
.btn-primary:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);}
.btn-outline{
  border-color:var(--brand-700);color:var(--brand-700);background:transparent;
}
.btn-outline:hover{background:var(--brand-100);border-color:var(--brand-700);color:var(--brand-700);transform:translateY(-1px);}
.btn-accent{background:var(--accent-500);color:#fff;}
.btn-accent:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--ink);font-weight:700;font-size:17px;letter-spacing:.01em;
  flex-shrink:0;
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  color:#fff;display:grid;place-items:center;
  font-size:16px;font-weight:700;
  box-shadow:var(--shadow-1);
}
.brand-text{white-space:nowrap;}
.nav-links{
  display:flex;align-items:center;gap:2px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  padding:8px 12px;
  font-size:15px;font-weight:500;
  color:var(--ink-2);
  border-radius:8px;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;
  height:2px;background:var(--brand-500);
  transition:left .2s ease,right .2s ease;
}
.nav-links a:hover{color:var(--brand-700);}
.nav-links a:hover::after{left:12px;right:12px;}
.nav-links a.active{color:var(--brand-700);font-weight:700;}
.nav-links a.active::after{left:12px;right:12px;}
.header-cta{flex-shrink:0;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;background:#fff;
  color:var(--brand-700);font-size:17px;
}
.nav-toggle:hover{background:var(--brand-100);}

@media (max-width:991.98px){
  .header-inner{height:68px;gap:12px;}
  .nav-toggle{display:inline-flex;order:3;}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    display:none;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;
    border-top:1px solid var(--divider);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-nav);
    padding:12px 16px;
    margin-left:0;
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{padding:12px 10px;border-radius:8px;}
  .nav-links a::after{display:none;}
  .nav-links a.active{background:var(--brand-100);}
  .header-cta{margin-left:auto;order:2;}
}
@media (max-width:575.98px){
  .brand-text{font-size:15px;}
  .header-cta .btn-header-text-long{display:none;}
  .header-cta .btn-header-text-short{display:inline;}
}
.btn-header{
  display:inline-flex;align-items:center;gap:6px;
  height:42px;padding:0 20px;
  border-radius:var(--radius-btn);
  background:var(--accent-500);color:#fff;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  box-shadow:0 6px 16px -10px rgba(194,96,58,.9);
  transition:background-color .18s ease,transform .18s ease,color .18s ease;
}
.btn-header:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);}
.btn-header:active{transform:translateY(0);}
.btn-header-text-short{display:none;}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{
  background:#fff;
  border-bottom:1px solid var(--divider);
  padding:14px 0;
  font-size:13px;color:var(--ink-3);
}
.breadcrumb-bar ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0;list-style:none;}
.breadcrumb-bar li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb-bar li+li::before{content:"/";color:var(--line);}
.breadcrumb-bar a{color:var(--ink-3);}
.breadcrumb-bar a:hover{color:var(--brand-700);}
.breadcrumb-bar .current{color:var(--ink-2);font-weight:600;}

/* ---------- Hero ---------- */
.category-hero{
  position:relative;
  background:
    linear-gradient(180deg,#FFFFFF 0%,#F2F7F5 100%);
  border-bottom:1px solid var(--divider);
  padding:60px 0 68px;
  overflow:hidden;
}
.hero-deco{
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(27,138,126,.07) 0 1px,transparent 1px 26px);
  opacity:.55;
  pointer-events:none;
  -webkit-mask-image:linear-gradient(100deg,rgba(0,0,0,.9) 30%,transparent 78%);
  mask-image:linear-gradient(100deg,rgba(0,0,0,.9) 30%,transparent 78%);
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.hero-copy{max-width:620px;}
.hero-copy .h1{margin:16px 0 14px;}
.hero-sub{
  font-size:17px;color:var(--brand-700);font-weight:600;
  line-height:1.7;margin-bottom:16px;
}
.hero-desc{color:var(--ink-2);font-size:15.5px;line-height:1.9;margin-bottom:24px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.badge-soft{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-100);
  color:var(--brand-900);
  font-size:13px;font-weight:600;
  padding:8px 14px;
  border-radius:999px;
}
.badge-soft i{color:var(--brand-500);font-size:12px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-figure{
  position:relative;
  border-radius:var(--radius-block);
  overflow:hidden;
  box-shadow:var(--shadow-hover);
  aspect-ratio:16/11;
  background:var(--soft);
}
.hero-figure img{
  width:100%;height:100%;object-fit:cover;
}
.hero-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(14,79,74,.28),rgba(14,79,74,0) 62%);
  pointer-events:none;
}
.hero-seal{
  position:absolute;right:18px;bottom:18px;
  background:rgba(255,255,255,.94);
  border-radius:12px;
  padding:10px 14px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--brand-900);
  box-shadow:var(--shadow-1);
}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-figure{order:2;}
  .hero-copy{order:1;}
}
@media (max-width:575.98px){
  .category-hero{padding:40px 0 44px;}
  .hero-desc{font-size:15px;}
  .hero-actions .btn{width:100%;}
}

/* ---------- 区块 ---------- */
.section{padding:80px 0;}
.section-white{background:#fff;border-bottom:1px solid var(--divider);}
.section-soft{background:var(--bg);border-bottom:1px solid var(--divider);}
.section-embed{background:var(--soft);border-bottom:1px solid var(--divider);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .h2{margin:12px 0 12px;}
.section-head p{color:var(--ink-2);font-size:15.5px;}
@media (max-width:767.98px){
  .section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
}

/* ---------- 四宫格要点卡 ---------- */
.grid-2x2{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.point-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;gap:12px;
  height:100%;
}
.point-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:var(--brand-500);
}
.point-top{display:flex;align-items:center;gap:14px;}
.point-num{
  width:44px;height:44px;flex-shrink:0;
  border-radius:12px;
  background:var(--brand-100);
  color:var(--brand-700);
  display:grid;place-items:center;
  font-size:15px;font-weight:700;
  letter-spacing:.02em;
}
.point-card:hover .point-num{background:var(--brand-700);color:#fff;}
.point-card h3{font-size:19px;font-weight:600;color:var(--ink);}
.point-card p{color:var(--ink-2);font-size:15px;line-height:1.85;}
.point-list{display:flex;flex-direction:column;gap:8px;margin-top:4px;}
.point-list li{
  position:relative;
  padding-left:18px;
  font-size:14px;color:var(--ink-3);line-height:1.7;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:7px;height:7px;border-radius:2px;
  background:var(--brand-500);
}
@media (max-width:767.98px){
  .grid-2x2{grid-template-columns:1fr;gap:18px;}
  .point-card{padding:22px;}
}

/* ---------- 风险提示条 ---------- */
.risk-strip{
  background:var(--accent-100);
  border-left:4px solid var(--accent-600);
  border-radius:var(--radius-card);
  padding:28px 30px;
}
.risk-head{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.risk-head i{color:var(--accent-600);font-size:18px;}
.risk-head h3{font-size:19px;font-weight:600;color:var(--ink);}
.risk-list{display:grid;gap:14px;}
.risk-list li{
  display:flex;gap:12px;
  font-size:15px;color:var(--ink-2);line-height:1.8;
}
.risk-list li span.idx{
  flex-shrink:0;
  width:22px;height:22px;margin-top:6px;
  border-radius:50%;
  background:var(--accent-600);
  color:#fff;
  font-size:12px;font-weight:700;
  display:grid;place-items:center;
}
.risk-note{
  margin-top:18px;padding-top:16px;
  border-top:1px dashed rgba(194,96,58,.35);
  font-size:13.5px;color:var(--accent-600);font-weight:600;
}
@media (max-width:575.98px){
  .risk-strip{padding:22px 18px;}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:var(--brand-500);box-shadow:var(--shadow-1);}
.faq-item.is-open{border-color:var(--brand-500);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;
  background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  line-height:1.6;
}
.faq-q:hover{color:var(--brand-700);}
.faq-icon{
  flex-shrink:0;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:8px;
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:13px;
  transition:transform .18s ease,background-color .18s ease,color .18s ease;
}
.faq-item.is-open .faq-icon{
  transform:rotate(45deg);
  background:var(--brand-700);
  color:#fff;
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .22s ease;
}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a-inner{
  padding:0 22px 22px;
  color:var(--ink-2);
  font-size:15px;
  line-height:1.85;
}
@media (max-width:575.98px){
  .faq-q{padding:16px;font-size:15px;}
  .faq-a-inner{padding:0 16px 18px;}
}

/* ---------- 表单 ---------- */
.consult-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:start;
}
.consult-side .h2{margin:12px 0 14px;}
.consult-side > p{color:var(--ink-2);font-size:15.5px;margin-bottom:22px;}
.consult-points{display:flex;flex-direction:column;gap:16px;}
.consult-points li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--ink-2);line-height:1.75;
}
.consult-points i{
  flex-shrink:0;
  margin-top:6px;
  color:var(--brand-500);
  font-size:14px;
}
.form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-block);
  padding:32px;
  box-shadow:var(--shadow-1);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:14px;font-weight:500;
  color:var(--ink-2);
  margin-bottom:8px;
}
.field label .req{color:var(--alert);margin-left:4px;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  background:#fff;
  padding:0 14px;
  height:44px;
  font-size:15px;
  color:var(--ink);
  transition:border-color .18s ease,box-shadow .18s ease;
  appearance:none;
}
.field textarea{
  height:auto;
  min-height:110px;
  padding:12px 14px;
  line-height:1.8;
  resize:vertical;
}
.field select{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%234E5C59' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  padding-right:40px;
}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(27,138,126,.16);
}
.field input::placeholder,
.field textarea::placeholder{color:#AEBAB7;}
.check-line{
  display:flex;gap:10px;align-items:flex-start;
  font-size:13.5px;color:var(--ink-3);line-height:1.7;
  margin-bottom:22px;
}
.check-line input[type="checkbox"]{
  width:18px;height:18px;margin-top:4px;
  accent-color:var(--brand-700);
  flex-shrink:0;
}
.form-note{
  display:none;
  margin-top:16px;
  background:var(--brand-100);
  border:1px solid rgba(27,138,126,.28);
  border-radius:var(--radius-input);
  padding:12px 14px;
  font-size:14px;color:var(--brand-900);
}
.form-note.show{display:block;}
@media (max-width:991.98px){
  .consult-grid{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:575.98px){
  .form-card{padding:22px;border-radius:var(--radius-card);}
  .form-row{grid-template-columns:1fr;gap:0;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#17201F;
  color:#C7D2CF;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
}
.site-footer .brand{color:#fff;margin-bottom:16px;}
.site-footer .brand:hover{color:#fff;}
.site-footer .brand-mark{
  background:linear-gradient(135deg,var(--brand-500),var(--brand-700));
}
.footer-brand p{
  font-size:14px;line-height:1.85;color:#9FB0AC;
  max-width:340px;
}
.footer-title{
  font-size:14px;font-weight:600;color:#fff;
  margin-bottom:16px;
}
.footer-links,
.footer-contact{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;color:#9FB0AC;
}
.footer-links a:hover{color:#fff;}
.footer-contact li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:#9FB0AC;line-height:1.7;
}
.footer-contact i{
  margin-top:6px;color:var(--brand-500);font-size:13px;flex-shrink:0;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 24px;
  font-size:12.5px;color:#84948F;
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575.98px){
  .site-footer{padding-top:44px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:28px;}
  .footer-brand p{max-width:none;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0E4F4A;
  --brand-700:#12655F;
  --brand-500:#1B8A7E;
  --brand-100:#E9F1EE;
  --accent-600:#C2603A;
  --accent-500:#D97544;
  --accent-100:#FBEDE4;
  --alert:#C0453A;
  --bg:#F6F7F4;
  --card:#FFFFFF;
  --inset:#EDF2F1;
  --ink:#17201F;
  --ink-2:#4E5C59;
  --ink-3:#8A9895;
  --line:#DFE6E2;
  --divider:#EDF1EF;
  --r-card:14px;
  --r-lg:20px;
  --r-btn:10px;
  --r-cta:12px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(23,32,31,.04);
  --shadow-2:0 10px 28px -14px rgba(23,32,31,.18);
  --shadow-nav:0 6px 20px -12px rgba(23,32,31,.16);
  --font-sans:'HarmonyOS Sans SC','PingFang SC','Source Han Sans SC','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  --bs-primary:#1B8A7E;
  --bs-primary-rgb:27,138,126;
  --bs-body-bg:#F6F7F4;
  --bs-body-color:#17201F;
  --bs-border-color:#DFE6E2;
  --bs-border-radius:10px;
  --bs-link-color:#12655F;
  --bs-link-hover-color:#0E4F4A;
  --bs-font-sans-serif:'HarmonyOS Sans SC','PingFang SC','Source Han Sans SC','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-900)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:.01em}
h1{font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.3}
h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35}
h3{font-size:20px;font-weight:600;line-height:1.5}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:575.98px){.container{padding-left:16px;padding-right:16px}}
::selection{background:var(--brand-100);color:var(--brand-900)}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:var(--shadow-nav)}
.header-inner{display:flex;align-items:center;height:72px;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;flex:0 0 auto}
.brand:hover{color:var(--brand-700)}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--brand-700);color:#fff;
  display:grid;place-items:center;font-size:16px;font-weight:700;
  box-shadow:0 4px 12px -6px rgba(14,79,74,.6);
}
.brand-text{font-size:18px;letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:26px;margin:0 auto}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:6px 2px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand-500);transform:scaleX(0);transform-origin:center;
  transition:transform .22s ease;
}
.nav-links a:hover{color:var(--brand-700)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand-700);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 18px;border-radius:var(--r-btn);
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-cta i{font-size:13px}
.btn-cta:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -14px rgba(194,96,58,.9)}
.btn-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--brand-100);border-bottom:1px solid rgba(27,138,126,.12)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--ink-3)}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand-700)}
.crumb .sep{color:var(--ink-3);opacity:.7}
.crumb .current{color:var(--brand-900);font-weight:600}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  padding:56px 0 64px;
  background-color:var(--brand-100);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='44' height='44' viewBox='0 0 44 44'%3E%3Cg fill='none' stroke='%231B8A7E' stroke-opacity='.14' stroke-width='1'%3E%3Cpath d='M4 22V10h12v8H8v8h18'/%3E%3Cpath d='M26 6v8h8V6z'/%3E%3Cpath d='M34 30h6v8h-6z'/%3E%3C/g%3E%3C/svg%3E");
  background-size:44px 44px;
  border-bottom:1px solid var(--line);
}
.cat-hero-inner{max-width:860px}
.cat-hero h1{margin-bottom:14px}
.hero-sub{
  font-size:17px;
  color:var(--brand-700);
  font-weight:600;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.hero-desc{font-size:16px;line-height:1.9;color:var(--ink-2);margin-bottom:28px}
.btn-brand-lg{
  display:inline-flex;align-items:center;gap:10px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  background:var(--brand-700);color:#fff;font-size:16px;font-weight:600;
  border:1px solid var(--brand-700);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-brand-lg:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -16px rgba(14,79,74,.9)}
.btn-brand-lg:active{transform:translateY(0)}

/* ---------- sections ---------- */
.section{padding:80px 0;border-bottom:1px solid var(--line)}
.section:last-of-type{border-bottom:0}
.section-inset{background:var(--inset);border-bottom:1px solid var(--line)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:40px;flex-wrap:wrap;
}
.section-head p{color:var(--ink-2);font-size:15px;margin:10px 0 0}
.link-more{
  font-size:15px;font-weight:600;color:var(--brand-700);
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
}
.link-more:hover{gap:10px}

/* ---------- plan matrix ---------- */
.matrix{display:grid;grid-template-columns:1.05fr 1fr 1fr 1fr;gap:16px;align-items:start}
.matrix-col{
  position:relative;
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:box-shadow .24s ease,transform .24s ease,border-color .24s ease;
}
.matrix-col:hover{box-shadow:var(--shadow-2)}
.matrix-col.is-featured{
  border:2px solid var(--brand-700);
  transform:translateY(-8px);
  box-shadow:var(--shadow-2);
}
.matrix-specs{background:var(--inset);border-style:dashed;box-shadow:none}
.matrix-cell{
  min-height:58px;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 18px;
  border-bottom:1px dashed var(--divider);
  font-size:15px;color:var(--ink-2);
}
.matrix-cell:last-child{border-bottom:0}
.cell-value{color:var(--ink);font-weight:500;text-align:right}
.cell-label{display:none;font-size:13px;color:var(--ink-3)}
.matrix-head{
  flex-direction:column;align-items:flex-start;justify-content:center;gap:4px;
  min-height:96px;padding:20px 18px;
  background:var(--brand-100);
}
.matrix-head .plan-name{font-size:17px;font-weight:700;color:var(--brand-900)}
.matrix-head .plan-price{font-size:13px;color:var(--ink-2)}
.plan-price-num{
  font-size:28px;font-weight:700;color:var(--brand-900);
  font-variant-numeric:tabular-nums;
  margin-right:2px;
}
.is-featured .matrix-head{background:var(--brand-700)}
.is-featured .matrix-head .plan-name,
.is-featured .matrix-head .plan-price,
.is-featured .plan-price-num{color:#fff}
.ribbon{
  position:absolute;top:0;right:0;
  background:var(--accent-500);color:#fff;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:5px 14px;
  border-bottom-left-radius:var(--r-card);
}
.matrix-foot{min-height:auto;padding:16px 18px 20px;border-bottom:0}
.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  width:100%;height:42px;padding:0 16px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--brand-700);font-size:15px;font-weight:600;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-outline-brand:hover{background:var(--brand-100);border-color:var(--brand-700);color:var(--brand-900)}
.is-featured .btn-outline-brand{
  background:var(--brand-700);border-color:var(--brand-700);color:#fff;
}
.is-featured .btn-outline-brand:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.split-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease}
.split-media:hover img{transform:scale(1.03)}
.split-body h2{margin-bottom:14px}
.split-body > p{color:var(--ink-2);font-size:16px;margin-bottom:26px}
.flow-list{display:grid;gap:16px}
.flow-item{
  background:var(--card);
  border:1px solid var(--line);
  border-left:4px solid var(--brand-500);
  border-radius:var(--r-card);
  padding:16px 20px;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.flow-item:hover{transform:translateX(3px);box-shadow:var(--shadow-2);border-left-color:var(--accent-500)}
.flow-item h3{font-size:16px;margin-bottom:4px}
.flow-item p{font-size:14px;color:var(--ink-2);margin:0;line-height:1.8}
.flow-item .tag{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-700);background:var(--brand-100);
  border-radius:999px;padding:2px 10px;margin-bottom:8px;
}

/* ---------- qa cards ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.qa-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.qa-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(27,138,126,.35)}
.qa-index{
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--accent-500);margin-bottom:12px;
  font-variant-numeric:tabular-nums;
}
.qa-card h3{font-size:18px;margin-bottom:12px;line-height:1.55}
.qa-card p{font-size:15px;color:var(--ink-2);margin:0;line-height:1.85}

/* ---------- limited bar ---------- */
.limited{background:var(--brand-900);color:#fff;padding:52px 0}
.limited-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.limited h2{color:#fff;margin-bottom:8px}
.limited p{color:rgba(255,255,255,.78);font-size:15px;margin:0}
.btn-light-solid{
  display:inline-flex;align-items:center;gap:10px;
  height:48px;padding:0 28px;border-radius:var(--r-cta);
  background:#fff;color:var(--brand-900);
  font-size:16px;font-weight:700;border:1px solid #fff;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.btn-light-solid:hover{background:var(--brand-100);color:var(--brand-900);transform:translateY(-1px)}
.btn-light-solid:active{transform:translateY(0)}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-100);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--ink-2);max-width:280px;line-height:1.85}
.footer-title{font-size:14px;font-weight:700;color:var(--brand-900);margin-bottom:16px;letter-spacing:.03em}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--ink-2)}
.footer-links a:hover{color:var(--brand-700)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);margin-bottom:12px;line-height:1.7}
.footer-contact i{color:var(--brand-500);margin-top:4px;font-size:14px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(14,79,74,.14);
  margin-top:48px;padding-top:20px;
  font-size:12px;color:var(--ink-3);
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .matrix{grid-template-columns:1fr 1fr 1fr;gap:14px}
  .matrix-specs{display:none}
  .matrix-col.is-featured{transform:translateY(-6px)}
}
@media (max-width:991.98px){
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;left:0;right:0;top:72px;
    flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:10px 16px 18px;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-nav);
    max-height:calc(100vh - 72px);overflow-y:auto;
    opacity:0;transform:translateY(-10px);pointer-events:none;
    transition:opacity .2s ease,transform .2s ease;
  }
  body.nav-open .nav-links{opacity:1;transform:none;pointer-events:auto}
  .nav-links a{padding:13px 4px;border-bottom:1px dashed var(--divider);font-size:16px}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--brand-900)}
  .split{grid-template-columns:1fr;gap:32px}
  .qa-grid{grid-template-columns:1fr 1fr}
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .matrix{display:block}
  .matrix-col{margin-bottom:18px}
  .matrix-col.is-featured{transform:none}
  .matrix-cell{min-height:auto;padding:12px 16px;justify-content:space-between}
  .matrix-cell .cell-label{display:inline}
  .cell-value{text-align:right}
  .matrix-head{min-height:auto;flex-direction:row;align-items:center;justify-content:space-between;flex-wrap:wrap}
  .matrix-head .plan-price{display:flex;align-items:baseline;gap:2px}
  .qa-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
  .cat-hero{padding:40px 0 48px}
  .limited{padding:40px 0}
  .limited-inner{align-items:flex-start}
  .btn-light-solid{width:100%;justify-content:center}
}
@media (max-width:575.98px){
  .brand-text{font-size:16px}
  .brand-mark{width:32px;height:32px;border-radius:9px;font-size:15px}
  .btn-cta{height:40px;padding:0 14px;font-size:14px}
  .btn-cta span{display:none}
  .btn-cta i{font-size:15px}
  .btn-brand-lg{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .section-head{margin-bottom:28px}
}
#plans,#cases,#qa,#limited{scroll-margin-top:88px}