/* roulang page: index */
:root{
  --c-primary:#0E7C7B;
  --c-primary-dark:#075E5C;
  --c-primary-soft:#E4F2F1;
  --c-secondary:#FF7A59;
  --c-secondary-soft:#FFEDE7;
  --c-accent:#F5B740;
  --c-ink:#0F1F1E;
  --c-body:#51625F;
  --c-muted:#8A9A97;
  --c-line:#E2EAE8;
  --c-bg:#F5F8F7;
  --c-surface:#FFFFFF;
  --c-deep:#0B2B2A;
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(15,31,30,.04);
  --sh-2:0 8px 24px rgba(15,31,30,.08);
  --sp-block:88px;
  --bs-primary:#0E7C7B;
  --bs-primary-rgb:14,124,123;
  --bs-body-color:#51625F;
  --bs-body-bg:#F5F8F7;
  --bs-border-color:#E2EAE8;
  --bs-link-color:#0E7C7B;
  --bs-link-hover-color:#075E5C;
  --bs-font-sans-serif:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.75;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-dark)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(14,124,123,.25);outline-offset:2px;border-radius:6px
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:600;line-height:1.3}
h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.5px}
h2{font-size:clamp(24px,3vw,32px);line-height:1.3}
h3{font-size:20px;line-height:1.45}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sp-block) 0;position:relative}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-kicker{
  display:inline-block;font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-soft);border-radius:999px;padding:5px 14px;margin-bottom:16px
}
.section-head p{margin-top:14px;color:var(--c-body);font-size:16px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;border-radius:var(--r-btn);
  padding:14px 26px;border:1.5px solid transparent;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  min-height:44px;text-align:center
}
.btn-primary-c{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary-c:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary-c:active{transform:translateY(0);background:var(--c-primary-dark)}
.btn-outline-c{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline-c:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--c-primary);padding:8px 4px;min-height:auto;font-weight:600}
.btn-ghost:hover{color:var(--c-primary-dark);gap:12px}
.btn-light-c{background:#fff;color:var(--c-primary);border-color:transparent}
.btn-light-c:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px)}
.btn-block{width:100%}
.btn[disabled],.btn:disabled{opacity:.55;cursor:not-allowed;transform:none!important;box-shadow:none!important}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.link-arrow::after{content:"→";transition:transform .18s ease}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;
  border-radius:999px;padding:4px 12px;line-height:1.6;letter-spacing:.2px
}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.badge-accent{background:#FDF1D8;color:#8A6108}
.badge-warm{background:var(--c-secondary-soft);color:#B34526}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid transparent;transition:box-shadow .2s ease,border-color .2s ease
}
.site-header.is-stuck{border-bottom-color:var(--c-line);box-shadow:0 4px 18px rgba(15,31,30,.06)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);flex:0 0 auto}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:linear-gradient(150deg,var(--c-primary),#12A0A0);
  display:inline-flex;align-items:center;justify-content:center;color:#fff;flex:0 0 auto
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.2px}
.brand-text em{font-size:11px;font-style:normal;color:var(--c-muted);letter-spacing:2px}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:12px}
.main-nav a{
  font-size:15px;color:var(--c-body);font-weight:500;position:relative;padding:6px 0;white-space:nowrap
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;border-radius:2px
}
.main-nav a:hover{color:var(--c-primary-dark)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--c-primary);font-weight:600}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;background:var(--c-primary-soft);color:var(--c-primary-dark);
  border:1px solid transparent;border-radius:var(--r-btn);padding:10px 16px;font-size:14px;font-weight:600;
  cursor:pointer;min-height:44px;transition:background-color .18s ease
}
.mega-toggle:hover{background:#D6ECEA}
.mega-toggle .caret{transition:transform .2s ease}
.mega-toggle[aria-expanded="true"] .caret{transform:rotate(180deg)}
.nav-burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;padding:0
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative}
.nav-burger span::before,.nav-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px
}
.nav-burger span::before{top:-6px}
.nav-burger span::after{top:6px}

/* mega panel */
.mega-panel{
  position:absolute;left:0;right:0;top:calc(100% + 10px);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
  pointer-events:none
}
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
.mega-inner{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-2);
  padding:28px;display:grid;grid-template-columns:1.15fr .85fr;gap:32px
}
.mega-col-title{font-size:13px;font-weight:600;color:var(--c-muted);margin-bottom:16px;letter-spacing:.5px}
.mega-links{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.mega-links a{
  display:flex;gap:12px;padding:12px;border-radius:12px;border:1px solid transparent;color:var(--c-ink)
}
.mega-links a:hover{background:var(--c-primary-soft);border-color:#CFE9E7;color:var(--c-ink)}
.mega-ico{
  width:34px;height:34px;border-radius:10px;background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex:0 0 auto
}
.mega-links strong{display:block;font-size:14px;font-weight:600;line-height:1.5}
.mega-links small{display:block;font-size:12px;color:var(--c-muted);line-height:1.5}
.mega-side{border-left:1px solid var(--c-line);padding-left:32px}
.mega-mini li{border-bottom:1px solid var(--c-line);padding:11px 0}
.mega-mini li:last-child{border-bottom:0}
.mega-mini a{font-size:13.5px;color:var(--c-body);display:flex;justify-content:space-between;gap:10px}
.mega-mini a:hover{color:var(--c-primary)}
.mega-mini span:last-child{color:var(--c-muted);font-size:12px;white-space:nowrap}
.mega-promo{
  margin-top:18px;display:flex;gap:14px;align-items:center;padding:14px;border-radius:14px;
  background:var(--c-primary-soft);color:var(--c-ink)
}
.mega-promo img{width:88px;height:64px;object-fit:cover;border-radius:10px;background:#CFE9E7}
.mega-promo strong{display:block;font-size:13.5px;line-height:1.5}
.mega-promo small{color:var(--c-muted);font-size:12px}

/* mobile nav */
.mobile-nav{
  display:none;background:#fff;border-bottom:1px solid var(--c-line);
  max-height:calc(100vh - 72px);overflow-y:auto
}
.mobile-nav.is-open{display:block}
.mobile-nav .mobile-inner{padding:16px 20px 26px}
.mobile-nav a.m-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 0;font-size:16px;color:var(--c-ink);border-bottom:1px solid var(--c-line)
}
.mobile-nav a.m-link.active{color:var(--c-primary);font-weight:600}
.mobile-nav .m-sub{padding:6px 0 12px}
.mobile-nav .m-sub a{display:block;padding:10px 12px;font-size:14px;color:var(--c-body);border-radius:10px}
.mobile-nav .m-sub a:hover{background:var(--c-primary-soft)}
.mobile-nav .m-cta{margin-top:18px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 84px;background:linear-gradient(180deg,#F1F8F7 0%,var(--c-bg) 100%)}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(14,124,123,.14) 1.4px,transparent 1.4px);
  background-size:24px 24px;opacity:.5;pointer-events:none
}
.hero::after{
  content:"";position:absolute;width:680px;height:680px;border-radius:50%;
  border:1px solid rgba(14,124,123,.14);left:-240px;bottom:-430px;pointer-events:none
}
.hero-arc{
  position:absolute;right:-180px;top:-160px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(14,124,123,.12);pointer-events:none
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.hero-copy h1{margin-bottom:20px}
.hero-copy h1 .hl{color:var(--c-primary)}
.hero-sub{font-size:17px;color:var(--c-body);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-note{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--c-muted)}
.hero-note .dot{width:8px;height:8px;border-radius:50%;background:var(--c-secondary);flex:0 0 auto}

.entry-card{
  background:#fff;border:1px solid var(--c-line);border-radius:20px;box-shadow:var(--sh-2);
  padding:30px;position:relative
}
.entry-card h2{font-size:21px;margin-bottom:6px}
.entry-card .entry-hint{font-size:14px;color:var(--c-muted);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:500;color:var(--c-ink);margin-bottom:7px}
.field label .req{color:var(--c-secondary);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;height:48px;border:1px solid var(--c-line);border-radius:var(--r-input);
  background:#fff;padding:0 14px;font-size:15px;color:var(--c-ink);font-family:inherit;
  transition:border-color .18s ease,box-shadow .18s ease
}
.field textarea{height:auto;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#A9B7B5}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,123,.15)
}
.field .err{display:none;font-size:13px;color:var(--c-secondary);margin-top:6px}
.field.has-error input{border-color:var(--c-secondary)}
.field.has-error .err{display:block}
.entry-links{display:flex;justify-content:space-between;gap:12px;margin-top:16px;font-size:13.5px}
.form-note{font-size:12.5px;color:var(--c-muted);margin-top:14px;line-height:1.7}

/* trust strip */
.trust-strip{
  position:relative;margin-top:8px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 32px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;box-shadow:var(--sh-1)
}
.trust-item{display:flex;gap:12px;align-items:flex-start}
.trust-item .tick{
  width:32px;height:32px;border-radius:10px;background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;flex:0 0 auto
}
.trust-item strong{display:block;font-size:15px;color:var(--c-ink);margin-bottom:2px}
.trust-item small{font-size:13px;color:var(--c-muted);line-height:1.6}

/* ---------- timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative;margin-top:12px}
.tl-node{position:relative;padding:0 18px;text-align:left}
.tl-node::before{
  content:"";position:absolute;left:0;right:0;top:17px;height:1px;background:var(--c-line)
}
.tl-node.active::before{background:var(--c-primary)}
.tl-node:last-child::before{display:none}
.tl-dot{
  position:relative;z-index:1;width:36px;height:36px;border-radius:50%;background:#fff;
  border:1.5px solid var(--c-line);color:var(--c-muted);display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;margin-bottom:16px
}
.tl-node.active .tl-dot{
  border-color:var(--c-primary);color:#fff;background:var(--c-primary);
  box-shadow:0 0 0 6px rgba(14,124,123,.12)
}
.tl-node h3{font-size:16px;margin-bottom:6px}
.tl-node p{font-size:13.5px;color:var(--c-body);line-height:1.7}

/* ---------- highlights ---------- */
.hl-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:stretch}
.hl-feature{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;display:flex;flex-direction:column
}
.hl-feature:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.hl-feature-media{overflow:hidden;aspect-ratio:16/9;background:#E8F1F0}
.hl-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.hl-feature:hover .hl-feature-media img{transform:scale(1.03)}
.hl-feature-body{padding:26px 28px 28px}
.hl-feature-body h3{font-size:22px;margin:14px 0 12px}
.hl-feature-body p{font-size:15px;color:var(--c-body)}
.hl-list{display:flex;flex-direction:column;gap:18px}
.hl-item{
  display:flex;gap:16px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;flex:1
}
.hl-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.hl-item img{width:104px;height:100%;min-height:96px;object-fit:cover;border-radius:var(--r-img);background:#E8F1F0;flex:0 0 auto}
.hl-item h3{font-size:16.5px;margin-bottom:6px}
.hl-item p{font-size:13.5px;color:var(--c-body);line-height:1.7}

/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:start;margin-top:28px}
.plan{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px 26px 30px;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease;position:relative
}
.plan:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.plan.featured{border:1.5px solid var(--c-primary);transform:translateY(-16px);padding-top:34px}
.plan.featured:hover{transform:translateY(-18px)}
.plan-tag{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--c-accent);color:#5C420A;font-size:12px;font-weight:700;border-radius:999px;padding:5px 14px
}
.plan h3{font-size:19px;margin-bottom:6px}
.plan .plan-desc{font-size:13.5px;color:var(--c-muted);margin-bottom:18px}
.plan .plan-price{font-size:26px;font-weight:700;color:var(--c-secondary);line-height:1.2;margin-bottom:4px}
.plan .plan-price span{font-size:13px;font-weight:500;color:var(--c-muted);margin-left:6px}
.plan ul{margin:18px 0 24px;display:flex;flex-direction:column;gap:11px}
.plan li{display:flex;gap:10px;font-size:14px;color:var(--c-body);align-items:flex-start}
.plan li i{
  font-style:normal;width:20px;height:20px;border-radius:50%;flex:0 0 auto;font-size:12px;
  display:flex;align-items:center;justify-content:center;margin-top:2px
}
.plan li.yes i{background:var(--c-primary-soft);color:var(--c-primary)}
.plan li.no i{background:#F0F3F2;color:#A9B7B5}
.plan li.no{color:var(--c-muted)}
.plan .plan-cta{margin-top:auto}
.plans-foot{margin-top:26px;font-size:13.5px;color:var(--c-muted);text-align:center}

/* ---------- cms ---------- */
.cms-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:20px;padding:32px;box-shadow:var(--sh-1)}
.cms-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.cms-head h2{font-size:26px}
.cms-head p{font-size:14px;color:var(--c-muted);margin-top:8px}
.cms-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:start}
.cms-feature-card{display:block;color:inherit;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);background:#fff;transition:transform .2s ease,box-shadow .2s ease}
.cms-feature-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);color:inherit}
.cms-feature-media{aspect-ratio:16/9;overflow:hidden;background:#E8F1F0}
.cms-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.cms-feature-card:hover .cms-feature-media img{transform:scale(1.03)}
.cms-feature-body{padding:22px 24px 24px}
.cms-feature-body h3{font-size:21px;margin:12px 0 10px;line-height:1.4}
.cms-feature-body p{font-size:14.5px;color:var(--c-body);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.cms-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;font-size:13px;color:var(--c-muted)}
.cms-list li{border-bottom:1px solid var(--c-line)}
.cms-list li:last-child{border-bottom:0}
.cms-list a{display:block;padding:16px 2px;color:var(--c-ink)}
.cms-list a:hover{color:var(--c-primary)}
.cms-list-title{
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
  font-size:15.5px;font-weight:600;line-height:1.5;margin-bottom:6px
}
.cms-list-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--c-muted)}
.cms-list-meta em{font-style:normal;background:var(--c-primary-soft);color:var(--c-primary-dark);border-radius:999px;padding:2px 10px}
.cms-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  gap:12px;padding:44px 24px;background:var(--c-bg);border:1px dashed var(--c-line);border-radius:var(--r-card)
}
.cms-empty .icon{
  width:46px;height:46px;border-radius:14px;background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:20px
}
.cms-empty p{font-size:14.5px;color:var(--c-muted);margin:0}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.is-open{border-color:#CFE9E7;box-shadow:var(--sh-1)}
.faq-q{
  width:100%;background:none;border:0;text-align:left;display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--c-ink);cursor:pointer;font-family:inherit;min-height:44px
}
.faq-q:hover{color:var(--c-primary)}
.faq-item.is-open .faq-q{color:var(--c-primary)}
.faq-sign{
  width:26px;height:26px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;flex:0 0 auto;
  transition:transform .2s ease
}
.faq-item.is-open .faq-sign{transform:rotate(180deg)}
.faq-a{display:none;padding:0 24px 22px;font-size:15px;color:var(--c-body);line-height:1.8}
.faq-item.is-open .faq-a{display:block}

/* ---------- cta ---------- */
.cta-section{background:var(--c-deep);color:#D6E4E2;position:relative;overflow:hidden}
.cta-section::before{
  content:"";position:absolute;width:560px;height:560px;border-radius:50%;
  border:1px solid rgba(255,255,255,.07);right:-200px;top:-220px
}
.cta-grid{position:relative;display:grid;grid-template-columns:1fr .92fr;gap:52px;align-items:start}
.cta-section h2{color:#fff}
.cta-section p.lead{color:#B9CFCC;font-size:16px;margin-top:16px}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.cta-points li{display:flex;gap:12px;font-size:15px;color:#C9DCDA;align-items:flex-start}
.cta-points i{
  font-style:normal;width:22px;height:22px;border-radius:50%;background:rgba(255,255,255,.1);
  color:#8FD8D6;display:flex;align-items:center;justify-content:center;font-size:12px;flex:0 0 auto;margin-top:3px
}
.cta-form{background:#fff;border-radius:20px;padding:30px;box-shadow:0 20px 50px rgba(0,0,0,.18)}
.cta-form h3{font-size:19px;margin-bottom:6px}
.cta-form .form-hint{font-size:13.5px;color:var(--c-muted);margin-bottom:20px}

/* ---------- footer ---------- */
.site-footer{background:var(--c-deep);color:#9FB6B4;padding:68px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{color:#fff}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:#6E8C8A}
.footer-brand p{font-size:14px;margin-top:18px;line-height:1.8;color:#9FB6B4;max-width:320px}
.footer-domain{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:13px;color:#8FD8D6;
  background:rgba(255,255,255,.06);border-radius:999px;padding:6px 14px
}
.footer-col h4{font-size:14px;color:#7FCFCC;margin-bottom:18px;font-weight:600;letter-spacing:.4px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:#9FB6B4}
.footer-col a:hover{color:#fff}
.footer-col p{font-size:14px;line-height:1.8}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7E9694
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .container{padding:0 28px}
  .hero-grid{gap:40px}
  .main-nav{gap:20px}
}
@media (max-width:991.98px){
  :root{--sp-block:64px}
  .main-nav{display:none}
  .mega-toggle{display:none}
  .nav-burger{display:inline-flex}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-sub{max-width:none}
  .trust-strip{grid-template-columns:1fr 1fr;gap:22px}
  .timeline{grid-template-columns:1fr;gap:22px}
  .tl-node{padding:0 0 0 56px;min-height:56px}
  .tl-node::before{left:17px;right:auto;top:36px;bottom:-22px;width:1px;height:auto}
  .tl-node:last-child::before{display:none}
  .tl-dot{position:absolute;left:0;top:0;margin-bottom:0}
  .hl-grid{grid-template-columns:1fr}
  .hl-item img{width:96px;min-height:88px}
  .plans{grid-template-columns:1fr;gap:22px}
  .plan.featured{transform:none;order:-1}
  .plan.featured:hover{transform:translateY(-2px)}
  .cms-grid{grid-template-columns:1fr;gap:24px}
  .cta-grid{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767.98px){
  .container{padding:0 20px}
  .brand-text em{display:none}
  .hero-actions .btn{width:100%}
  .trust-strip{padding:22px;grid-template-columns:1fr}
  .section-head{margin-bottom:32px}
  .cms-wrap{padding:22px}
  .cms-head{flex-direction:column;align-items:flex-start}
  .hl-item{flex-direction:column}
  .hl-item img{width:100%;height:170px;min-height:0}
  .faq-q{padding:17px 18px;font-size:15px}
  .faq-a{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .entry-card{padding:22px}
  .cta-form{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .btn:hover,.hl-feature:hover,.hl-item:hover,.plan:hover,.cms-feature-card:hover{transform:none!important}
  .hl-feature:hover .hl-feature-media img,.cms-feature-card:hover .cms-feature-media img{transform:none!important}
}

/* roulang page: article */
:root{
  --c-primary:#0E7C7B;
  --c-primary-dark:#075E5C;
  --c-primary-soft:#E4F2F1;
  --c-secondary:#FF7A59;
  --c-secondary-soft:#FFEDE7;
  --c-accent:#F5B740;
  --c-ink:#0F1F1E;
  --c-body:#51625F;
  --c-muted:#8A9A97;
  --c-line:#E2EAE8;
  --c-bg:#F5F8F7;
  --c-surface:#FFFFFF;
  --c-deep:#0B2B2A;
  --radius-card:16px;
  --radius-img:14px;
  --radius-input:10px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(15,31,30,.04);
  --shadow-2:0 8px 24px rgba(15,31,30,.08);
  --space-section:88px;
  --bs-primary:#0E7C7B;
  --bs-primary-rgb:14,124,123;
  --bs-body-color:#51625F;
  --bs-body-bg:#F5F8F7;
  --bs-border-color:#E2EAE8;
  --bs-link-color:#0E7C7B;
  --bs-link-hover-color:#075E5C;
  --bs-font-sans-serif:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.75;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--c-primary-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(14,124,123,.25);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--c-ink);margin:0;font-weight:600;letter-spacing:-.2px;}
h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.5px;}
h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
h3{font-size:clamp(18px,2vw,22px);line-height:1.45;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;line-height:1;cursor:pointer;
  border:1.5px solid transparent;background:transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  text-align:center;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary-dark);}
.btn-ghost{color:var(--c-primary);padding:0 4px;min-height:44px;}
.btn-ghost::after{content:"→";transition:transform .18s ease;}
.btn-ghost:hover::after{transform:translateX(4px);}
.btn-light{background:#fff;color:var(--c-primary-dark);}
.btn-light:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn[disabled],.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- badges ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;line-height:1.4;font-weight:500;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
}
.tag-warm{background:var(--c-secondary-soft);color:#C4472A;}
.tag-accent{background:#FDF3DD;color:#8A6110;}
.tag-line{background:#fff;border:1px solid var(--c-line);color:var(--c-body);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);backdrop-filter:saturate(140%) blur(6px);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 2px 14px rgba(15,31,30,.07);}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--c-muted);letter-spacing:.4px;}
.main-nav{display:flex;align-items:center;gap:26px;flex:1 1 auto;}
.main-nav a{
  position:relative;font-size:15px;color:var(--c-body);padding:6px 0;white-space:nowrap;
  transition:color .18s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.main-nav a:hover{color:var(--c-primary);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

/* mega */
.mega-wrap{position:relative;}
.mega-toggle{
  display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--radius-btn);background:#fff;
  color:var(--c-body);font-size:14px;cursor:pointer;transition:border-color .18s ease,color .18s ease;
}
.mega-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.mega-toggle .caret{transition:transform .2s ease;font-size:11px;}
.mega-wrap.open .mega-toggle{border-color:var(--c-primary);color:var(--c-primary);}
.mega-wrap.open .mega-toggle .caret{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:640px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:22px;
  display:grid;grid-template-columns:1fr 1fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h5{font-size:13px;color:var(--c-muted);font-weight:500;margin:0 0 12px;letter-spacing:.4px;}
.mega-list li+li{margin-top:4px;}
.mega-list a{display:flex;gap:10px;padding:8px 10px;border-radius:10px;color:var(--c-ink);font-size:14.5px;}
.mega-list a:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.mega-list .dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);flex:0 0 auto;margin-top:8px;}
.mega-list small{display:block;font-size:12.5px;color:var(--c-muted);}
.mega-news li+li{border-top:1px solid var(--c-line);}
.mega-news a{display:block;padding:10px 2px;font-size:14px;color:var(--c-ink);}
.mega-news a:hover{color:var(--c-primary);}
.mega-news span{display:block;font-size:12px;color:var(--c-muted);margin-top:2px;}
.mega-card{margin-top:12px;border:1px solid var(--c-line);border-radius:12px;overflow:hidden;display:block;}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--c-primary-soft);}
.mega-card b{display:block;padding:10px 12px;font-size:13.5px;font-weight:600;color:var(--c-ink);}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
  transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.open span{background:transparent;}
.nav-toggle.open span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.open span::after{transform:translateY(-6px) rotate(-45deg);}

.mobile-menu{
  display:none;border-top:1px solid var(--c-line);background:#fff;padding:14px 0 22px;
}
.mobile-menu.open{display:block;}
.mobile-menu .mm-inner{padding:0 20px;}
.mobile-menu a.mm-link{display:block;padding:13px 2px;font-size:15px;color:var(--c-ink);border-bottom:1px solid var(--c-line);}
.mobile-menu a.mm-link.active{color:var(--c-primary);font-weight:600;}
.mm-group{border-bottom:1px solid var(--c-line);}
.mm-group > button{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:13px 2px;background:none;border:0;font-size:15px;color:var(--c-ink);cursor:pointer;
}
.mm-group .mm-panel{display:none;padding:2px 0 10px;}
.mm-group.open .mm-panel{display:block;}
.mm-group .mm-panel a{display:block;padding:10px 12px;border-radius:8px;font-size:14.5px;color:var(--c-body);}
.mm-group .mm-panel a:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.mm-cta{margin-top:18px;}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;background:#fff;border-bottom:1px solid var(--c-line);
  padding:40px 0 34px;overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,124,123,.12),rgba(14,124,123,0) 70%);
}
.article-hero::after{
  content:"";position:absolute;left:-120px;bottom:-160px;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(14,124,123,.14);
}
.article-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-muted);margin-bottom:18px;}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C4D2CF;}
.breadcrumb .current{color:var(--c-body);}
.article-hero h1{max-width:880px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:18px;font-size:13.5px;color:var(--c-muted);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C4D2CF;}

/* ---------- layout ---------- */
.article-section{padding:56px 0 var(--space-section);}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start;}
.article-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:36px 40px;box-shadow:var(--shadow-1);
}

/* ---------- article body ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--c-body);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  position:relative;font-size:clamp(21px,2.4vw,26px);line-height:1.4;color:var(--c-ink);
  margin:38px 0 14px;padding-left:15px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;background:var(--c-primary);
}
.article-body h3{font-size:19px;color:var(--c-ink);margin:28px 0 10px;}
.article-body h4{font-size:17px;color:var(--c-ink);margin:22px 0 8px;}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:4px;}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:.5em;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--c-primary);
}
.article-body ol{counter-reset:oli;}
.article-body ol li{counter-increment:oli;}
.article-body ol li::before{
  content:counter(oli);position:absolute;left:0;top:.32em;width:18px;height:18px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:11.5px;font-weight:600;
  display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--c-primary-soft);
  border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;color:var(--c-ink);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-img);margin:26px auto;box-shadow:var(--shadow-1);}
.article-body figure{margin:26px 0;}
.article-body figure img{margin:0 auto;}
.article-body figcaption{text-align:center;font-size:13.5px;color:var(--c-muted);margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:11px 14px;text-align:left;}
.article-body th{background:var(--c-primary-soft);color:var(--c-ink);font-weight:600;}
.article-body tr:nth-child(even) td{background:#FBFDFC;}
.article-body pre{
  background:#F1F5F4;border:1px solid var(--c-line);border-radius:12px;padding:16px 18px;
  overflow-x:auto;font-size:13px;line-height:1.7;margin:24px 0;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13.5px;
  background:#F1F5F4;border-radius:6px;padding:2px 6px;color:var(--c-primary-dark);
}
.article-body pre code{background:none;padding:0;color:inherit;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:32px 0;}
.article-body a{border-bottom:1px solid rgba(14,124,123,.35);}
.article-body a:hover{border-bottom-color:var(--c-primary);}

/* empty state */
.article-empty{text-align:center;padding:26px 10px 38px;}
.article-empty .icon{
  width:56px;height:56px;border-radius:16px;margin:0 auto 18px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.article-empty h2{margin-bottom:12px;font-size:22px;}
.article-empty p{max-width:520px;margin:0 auto 22px;color:var(--c-body);}

/* footer of article */
.article-foot{
  margin-top:32px;padding-top:26px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.share-row{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--c-muted);}
.share-row a{
  display:inline-flex;align-items:center;padding:7px 14px;border:1px solid var(--c-line);
  border-radius:999px;font-size:13px;color:var(--c-body);background:#fff;
}
.share-row a:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.back-row{margin-top:22px;}

/* ---------- sidebar ---------- */
.sidebar{position:sticky;top:96px;display:grid;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:15.5px;margin-bottom:14px;}
.side-nav li+li{margin-top:2px;}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--c-ink);
}
.side-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.side-nav a .arrow{color:var(--c-muted);font-size:13px;}
.side-nav a:hover .arrow{color:var(--c-primary);}
.side-cta{background:var(--c-primary-soft);border:1px solid #CFE6E4;}
.side-cta img{border-radius:12px;width:100%;aspect-ratio:16/10;object-fit:cover;margin-bottom:14px;background:#fff;}
.side-cta p{font-size:14px;margin-bottom:14px;color:var(--c-body);}
.side-tips{display:grid;gap:10px;}
.side-tips li{display:flex;gap:10px;font-size:14px;color:var(--c-body);}
.side-tips .num{
  width:22px;height:22px;border-radius:50%;flex:0 0 auto;margin-top:4px;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  font-size:12px;font-weight:600;display:flex;align-items:center;justify-content:center;
}

/* ---------- related ---------- */
.section{padding:var(--space-section) 0;}
.section-tint{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:680px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;color:var(--c-primary);background:var(--c-primary-soft);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.section-head p{margin-top:12px;color:var(--c-body);}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;}
.post-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.post-card .thumb{overflow:hidden;background:var(--c-primary-soft);}
.post-card .thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease;}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.post-card h3{font-size:17px;line-height:1.5;}
.post-card h3 a{color:var(--c-ink);}
.post-card h3 a:hover{color:var(--c-primary);}
.post-card p{font-size:14.5px;color:var(--c-body);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card .meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted);}

/* ---------- cta ---------- */
.cta-band{
  background:var(--c-deep);color:#DCE9E7;border-radius:20px;padding:52px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,124,123,.55),rgba(14,124,123,0) 70%);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);}
.cta-band p{color:#B9CDCB;margin-top:14px;}
.cta-points{margin-top:22px;display:grid;gap:10px;}
.cta-points li{display:flex;gap:10px;font-size:14.5px;color:#CBDCDA;}
.cta-points .tick{
  width:20px;height:20px;border-radius:50%;flex:0 0 auto;margin-top:3px;
  background:rgba(255,255,255,.12);color:#7FD3D1;font-size:12px;
  display:flex;align-items:center;justify-content:center;
}
.cta-form{position:relative;z-index:1;background:#fff;border-radius:16px;padding:26px;box-shadow:var(--shadow-2);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:500;color:var(--c-ink);margin-bottom:7px;}
.field label .req{color:var(--c-secondary);margin-left:4px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;font-size:14.5px;color:var(--c-ink);
  border:1px solid var(--c-line);border-radius:var(--radius-input);background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,123,.14);
}
.form-note{font-size:12.5px;color:var(--c-muted);margin-top:12px;line-height:1.6;}
.form-ok{
  display:none;margin-bottom:14px;padding:10px 14px;border-radius:10px;
  background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:13.5px;
}
.form-ok.show{display:block;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:880px;}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:12px;overflow:hidden;}
.faq-item > button{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-ink);font-family:inherit;
}
.faq-item > button:hover{color:var(--c-primary);}
.faq-item .sign{
  width:24px;height:24px;border-radius:50%;flex:0 0 auto;background:var(--c-primary-soft);
  color:var(--c-primary-dark);display:flex;align-items:center;justify-content:center;
  font-size:15px;line-height:1;transition:transform .2s ease,background-color .2s ease;
}
.faq-item.open .sign{transform:rotate(180deg);background:var(--c-primary);color:#fff;}
.faq-item .answer{display:none;padding:0 22px 20px;font-size:15px;color:var(--c-body);}
.faq-item.open .answer{display:block;}
.faq-item.open > button{color:var(--c-primary);}

/* ---------- footer ---------- */
.site-footer{background:var(--c-deep);color:#A9BFBD;padding:64px 0 26px;margin-top:var(--space-section);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:#7FB0AE;}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);color:#7FD3D1;}
.footer-brand p{font-size:14px;color:#9DB4B2;margin-bottom:14px;}
.footer-domain{font-size:13px;color:#7FB0AE;}
.footer-col h4{font-size:14px;color:#7FD3D1;font-weight:600;margin-bottom:16px;letter-spacing:.3px;}
.footer-col ul li+li{margin-top:10px;}
.footer-col a,.footer-col p{font-size:14px;color:#A9BFBD;line-height:1.7;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:#7E9694;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .mega-panel{width:560px;}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .sidebar{position:static;grid-template-columns:repeat(2,minmax(0,1fr));}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;padding:40px;}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .mega-wrap{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-card{padding:28px 24px;}
  :root{--space-section:64px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .brand-text em{display:none;}
  .card-grid{grid-template-columns:1fr;}
  .sidebar{grid-template-columns:1fr;}
  .article-hero{padding:28px 0 24px;}
  .article-meta{gap:10px;}
  .article-foot{flex-direction:column;align-items:flex-start;}
  .section-head-row{flex-direction:column;align-items:flex-start;}
  .post-card:nth-child(n+4){display:none;}
  .cta-band{padding:30px 22px;border-radius:16px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;}
  .btn{width:auto;}
  .cta-form .btn{width:100%;}
}
@media (max-width:520px){
  h1{font-size:26px;}
  .article-body{font-size:16px;}
  .article-card{padding:22px 18px;border-radius:14px;}
  .article-body h2{font-size:20px;margin-top:30px;}
  .field input,.field select,.field textarea{font-size:15px;}
  .post-card:nth-child(n+3){display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --c-primary:#0E7C7B;
  --c-primary-dark:#075E5C;
  --c-primary-soft:#E4F2F1;
  --c-secondary:#FF7A59;
  --c-secondary-soft:#FFEDE7;
  --c-accent:#F5B740;
  --c-ink:#0F1F1E;
  --c-body:#51625F;
  --c-muted:#8A9A97;
  --c-line:#E2EAE8;
  --c-bg:#F5F8F7;
  --c-surface:#FFFFFF;
  --c-deep:#0B2B2A;
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(15,31,30,.04);
  --sh-2:0 8px 24px rgba(15,31,30,.08);
  --sec-y:88px;
  --bs-primary:#0E7C7B;
  --bs-body-color:#51625F;
  --bs-body-bg:#F5F8F7;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:600;line-height:1.3;}
h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.5px;}
h2{font-size:clamp(24px,3vw,32px);}
h3{font-size:19px;line-height:1.45;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease;}
a:hover{color:var(--c-primary-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(14,124,123,.25);
  border-radius:var(--r-input);
}
img{max-width:100%;height:auto;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--sec-y) 0;}
.section--tight{padding:56px 0;}
.section--soft{background:var(--c-primary-soft);}
.section--surface{background:var(--c-surface);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--c-primary-dark);background:var(--c-primary-soft);
  border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.section-head p{margin-top:12px;font-size:16px;color:var(--c-body);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-secondary{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-secondary:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--c-primary-dark);}
.btn-light:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;background:none;border:0;padding:8px 0;
  color:var(--c-primary);font-size:15px;font-weight:600;min-height:44px;
}
.btn-text:hover{color:var(--c-primary-dark);}
.btn-text:hover .arrow{transform:translateX(3px);}
.arrow{transition:transform .18s ease;}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;background:rgba(255,255,255,.96);
  border-bottom:1px solid transparent;backdrop-filter:saturate(140%) blur(6px);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.site-header.scrolled{border-bottom-color:var(--c-line);box-shadow:0 2px 10px rgba(15,31,30,.05);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;flex:0 0 auto;
}
.brand-mark svg{width:21px;height:21px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.01em;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--c-muted);letter-spacing:.14em;}
.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav a{
  font-size:15px;color:var(--c-body);padding:8px 0;position:relative;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.main-nav a:hover{color:var(--c-primary-dark);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary-dark);font-weight:600;background:var(--c-primary-soft);border-radius:8px;padding:8px 12px;}
.main-nav a.active::after{transform:scaleX(1);left:12px;right:12px;bottom:2px;}
.header-tools{display:flex;align-items:center;gap:12px;}
.mega-wrap{position:relative;}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 16px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;color:var(--c-body);transition:border-color .18s ease,color .18s ease;
}
.mega-toggle:hover{border-color:var(--c-primary);color:var(--c-primary-dark);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:640px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-2);
  padding:22px;display:grid;grid-template-columns:1.05fr .95fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.mega-wrap:hover .mega-panel,.mega-panel.open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{font-size:12.5px;font-weight:600;letter-spacing:.08em;color:var(--c-muted);margin-bottom:12px;}
.mega-list li+li{margin-top:6px;}
.mega-list li a{display:flex;gap:10px;align-items:flex-start;padding:9px 10px;border-radius:10px;color:var(--c-ink);}
.mega-list li a:hover{background:var(--c-primary-soft);}
.mega-dot{
  width:26px;height:26px;border-radius:8px;background:var(--c-primary-soft);color:var(--c-primary-dark);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex:0 0 auto;
}
.mega-list b{display:block;font-size:14.5px;font-weight:600;color:var(--c-ink);}
.mega-list span{display:block;font-size:12.5px;color:var(--c-muted);line-height:1.5;}
.mega-news li+li{margin-top:10px;padding-top:10px;border-top:1px solid var(--c-line);}
.mega-news a{font-size:14px;color:var(--c-ink);}
.mega-news a:hover{color:var(--c-primary-dark);}
.mega-news em{display:block;font-style:normal;font-size:12px;color:var(--c-muted);margin-top:2px;}
.mega-card{
  margin-top:14px;border:1px solid var(--c-line);border-radius:12px;overflow:hidden;background:var(--c-surface);
}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mega-card p{font-size:13px;margin:10px 12px 12px;color:var(--c-ink);font-weight:600;line-height:1.5;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;}
.mobile-menu{
  display:none;border-top:1px solid var(--c-line);background:#fff;padding:10px 0 20px;
}
.mobile-menu.open{display:block;}
.mobile-menu ul{padding:0 32px;}
.mobile-menu li a{
  display:block;padding:14px 2px;font-size:15.5px;color:var(--c-ink);border-bottom:1px solid var(--c-line);
}
.mobile-menu li a.active{color:var(--c-primary-dark);font-weight:600;}
.mobile-menu .m-btn{margin:18px 32px 0;width:calc(100% - 64px);}

/* ---------- 页头横幅 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--c-primary-soft);padding:64px 0 68px;}
.page-hero .wave{
  position:absolute;border:1.5px solid rgba(14,124,123,.16);border-radius:50%;pointer-events:none;
}
.page-hero .wave-1{width:520px;height:520px;right:-160px;top:-220px;}
.page-hero .wave-2{width:340px;height:340px;right:60px;top:-80px;border-color:rgba(14,124,123,.1);}
.page-hero .dots{
  position:absolute;left:-40px;bottom:-60px;width:260px;height:220px;pointer-events:none;
  background-image:radial-gradient(rgba(14,124,123,.22) 1.6px,transparent 1.6px);
  background-size:18px 18px;opacity:.55;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-muted);margin-bottom:18px;}
.crumb a{color:var(--c-body);}
.crumb a:hover{color:var(--c-primary-dark);}
.crumb .current{color:var(--c-primary-dark);font-weight:600;}
.page-hero h1{max-width:820px;}
.page-hero .lede{margin-top:16px;max-width:700px;font-size:17px;color:var(--c-body);}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-block;font-size:12.5px;font-weight:600;padding:5px 13px;border-radius:999px;
  background:rgba(255,255,255,.85);color:var(--c-primary-dark);border:1px solid rgba(14,124,123,.16);
}
.tag--coral{background:var(--c-secondary-soft);color:#C34A2C;border-color:rgba(255,122,89,.24);}
.tag--amber{background:#FDF3DF;color:#9A6B08;border-color:rgba(245,183,64,.32);}

/* ---------- 概念说明 ---------- */
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;}
.intro-copy p{font-size:16.5px;line-height:1.85;}
.intro-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--c-line);background:#fff;}
.intro-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease;}
.intro-media:hover img{transform:scale(1.03);}
.intro-media figcaption{font-size:13px;color:var(--c-muted);padding:12px 16px;background:#fff;}
.note-line{
  margin-top:20px;padding:14px 18px;border-left:3px solid var(--c-primary);
  background:var(--c-surface);border-radius:0 12px 12px 0;font-size:14.5px;color:var(--c-body);
}

/* ---------- 要点卡（两列交错） ---------- */
.point-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.point-col{display:flex;flex-direction:column;gap:28px;}
.point-col--offset{padding-top:52px;}
.point-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.point-card--tall{padding:36px 30px;}
.point-num{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:11px;
  background:var(--c-primary-soft);color:var(--c-primary-dark);font-weight:700;font-size:15px;margin-bottom:16px;
}
.point-card h3{margin-bottom:10px;}
.point-card p{font-size:15.5px;}
.point-card ul{margin-top:14px;}
.point-card ul li{position:relative;padding-left:20px;font-size:14.5px;color:var(--c-body);margin-bottom:8px;}
.point-card ul li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--c-primary);opacity:.55;
}
.point-card--accent{border-color:rgba(255,122,89,.4);background:#FFFDFC;}

/* ---------- 操作步骤 ---------- */
.steps{max-width:860px;margin:0 auto;}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:22px;padding:24px 26px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.step+.step{margin-top:14px;}
.step-num{
  width:48px;height:48px;border-radius:14px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;
}
.step h3{margin-bottom:6px;font-size:18px;}
.step p{font-size:15px;color:var(--c-body);}
.step-meta{display:inline-block;margin-top:10px;font-size:12.5px;color:var(--c-muted);}

/* ---------- 相关链接 ---------- */
.link-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.link-item{
  display:flex;align-items:flex-start;gap:16px;padding:22px 24px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.link-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(14,124,123,.35);}
.link-ico{
  width:42px;height:42px;border-radius:12px;flex:0 0 auto;background:var(--c-primary-soft);
  color:var(--c-primary-dark);display:flex;align-items:center;justify-content:center;
}
.link-ico svg{width:20px;height:20px;}
.link-item h3{font-size:16.5px;margin-bottom:6px;color:var(--c-ink);}
.link-item p{font-size:14.5px;color:var(--c-body);margin:0;}
.link-item .go{display:inline-block;margin-top:8px;font-size:13.5px;color:var(--c-primary);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-acc .accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;
}
.faq-acc .accordion-item:last-child{margin-bottom:0;}
.faq-acc .accordion-header{margin:0;}
.faq-acc .accordion-button{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:var(--c-surface);border:0;box-shadow:none;
  font-size:16.5px;font-weight:600;color:var(--c-ink);text-align:left;
}
.faq-acc .accordion-button::after{display:none;}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary-dark);background:#FBFEFE;}
.faq-acc .accordion-button:focus{box-shadow:inset 0 0 0 3px rgba(14,124,123,.18);}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 auto;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-acc .accordion-button:not(.collapsed) .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-acc .accordion-body{padding:0 22px 22px;font-size:15px;color:var(--c-body);}
.faq-acc .accordion-body p{margin:0;}

/* ---------- 底部 CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;background:var(--c-deep);color:#CBD9D7;
  border-radius:20px;padding:52px 48px;
}
.cta-block h2{color:#fff;}
.cta-block .cta-lede{margin-top:14px;font-size:16px;color:#A9BEBB;max-width:640px;}
.cta-points{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:24px;}
.cta-points li{display:flex;align-items:center;gap:9px;font-size:14.5px;color:#BFD1CF;}
.cta-points li::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--c-secondary);flex:0 0 auto;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.cta-ring{
  position:absolute;border:1.5px solid rgba(255,255,255,.12);border-radius:50%;pointer-events:none;
}
.cta-ring.r1{width:420px;height:420px;right:-140px;top:-200px;}
.cta-ring.r2{width:260px;height:260px;right:40px;top:-60px;border-color:rgba(255,255,255,.07);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-deep);color:#A9BEBB;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:#7E9896;}
.footer-brand p{font-size:14px;line-height:1.8;color:#9DB2B0;max-width:320px;}
.footer-domain{display:inline-block;margin-top:16px;font-size:13px;color:#7E9896;}
.footer-col h4{font-size:14px;color:#7FD1CB;margin-bottom:16px;font-weight:600;letter-spacing:.02em;}
.footer-col ul li+li{margin-top:10px;}
.footer-col ul li a{font-size:14px;color:#B9CCCA;display:block;min-height:24px;}
.footer-col ul li a:hover{color:#fff;}
.footer-col p{font-size:14px;color:#9DB2B0;line-height:1.8;}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:#7E9896;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .main-nav{gap:18px;}
  .main-nav a{font-size:14.5px;}
  .mega-panel{width:560px;}
}
@media (max-width:991.98px){
  :root{--sec-y:64px;}
  .container{padding:0 20px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-tools .btn-primary{display:none;}
  .mega-panel{display:none;}
  .intro-grid{grid-template-columns:1fr;gap:28px;}
  .point-grid{grid-template-columns:1fr;}
  .point-col--offset{padding-top:0;}
  .link-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-block{padding:40px 28px;}
}
@media (max-width:767.98px){
  :root{--sec-y:48px;}
  .section-head{margin-bottom:28px;}
  .page-hero{padding:44px 0 48px;}
  .page-hero .lede{font-size:15.5px;}
  .step{grid-template-columns:1fr;gap:14px;padding:22px 20px;}
  .step-num{width:42px;height:42px;border-radius:12px;font-size:16px;}
  .point-card,.point-card--tall{padding:22px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .faq-acc .accordion-button{font-size:15.5px;padding:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .btn:hover,.point-card:hover,.link-item:hover,.intro-media:hover img{transform:none;}
}

/* roulang page: category2 */
:root{
  --c-primary:#0E7C7B;
  --c-primary-dark:#075E5C;
  --c-primary-soft:#E4F2F1;
  --c-secondary:#FF7A59;
  --c-secondary-soft:#FFEDE7;
  --c-accent:#F5B740;
  --c-ink:#0F1F1E;
  --c-body:#51625F;
  --c-muted:#8A9A97;
  --c-line:#E2EAE8;
  --c-bg:#F5F8F7;
  --c-surface:#FFFFFF;
  --c-deep:#0B2B2A;
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(15,31,30,.04);
  --sh-2:0 8px 24px rgba(15,31,30,.08);
  --sec-space:88px;

  --bs-primary:#0E7C7B;
  --bs-primary-rgb:14,124,123;
  --bs-body-color:#51625F;
  --bs-body-font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-border-color:#E2EAE8;
  --bs-link-color:#0E7C7B;
  --bs-link-hover-color:#075E5C;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{color:var(--c-ink);margin:0;font-weight:600;line-height:1.35;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-dark);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(14,124,123,.28);outline-offset:2px;border-radius:6px;}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--r-btn);
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  text-align:center;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-dark);}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary-dark);}
.btn-light{background:#fff;color:var(--c-primary);}
.btn-light:hover{background:#EAF7F6;color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--c-primary);border:none;padding:0;min-height:0;font-weight:600;}
.btn-ghost:hover{color:var(--c-primary-dark);}
.btn-ghost::after{content:"→";margin-left:6px;transition:transform .2s ease;display:inline-block;}
.btn-ghost:hover::after{transform:translateX(4px);}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(6px);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.scrolled{border-bottom-color:var(--c-line);box-shadow:0 4px 18px rgba(15,31,30,.05);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;color:var(--c-ink);font-weight:700;letter-spacing:-.2px;}
.brand-text em{font-style:normal;font-size:12px;color:var(--c-muted);letter-spacing:.6px;}

.main-nav{display:flex;align-items:center;gap:28px;margin-left:12px;}
.main-nav a{
  position:relative;
  font-size:15px;
  color:#3C4E4C;
  padding:6px 2px;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--c-primary);border-radius:2px;transition:right .2s ease;
}
.main-nav a:hover{color:var(--c-primary);}
.main-nav a:hover::after{right:0;}
.main-nav a.active{color:var(--c-primary);font-weight:600;}
.main-nav a.active::after{right:0;}

.header-tools{display:flex;align-items:center;gap:14px;margin-left:auto;}

.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  background:transparent;border:1px solid var(--c-line);
  border-radius:999px;padding:9px 16px;font-size:14px;color:#3C4E4C;
  cursor:pointer;transition:border-color .2s ease,color .2s ease,background .2s ease;
  min-height:42px;
}
.mega-trigger:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.mega-trigger svg{width:14px;height:14px;transition:transform .2s ease;}
.mega-wrap.open .mega-trigger svg{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);
  width:min(760px,calc(100vw - 48px));
  background:#fff;border:1px solid var(--c-line);border-radius:16px;
  box-shadow:var(--sh-2);
  padding:24px;
  display:grid;grid-template-columns:1.05fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{
  font-size:13px;font-weight:600;color:var(--c-muted);
  letter-spacing:.5px;margin-bottom:12px;
}
.mega-list li + li{border-top:1px solid var(--c-line);}
.mega-list a{
  display:flex;gap:10px;align-items:flex-start;
  padding:10px 8px;border-radius:10px;transition:background .18s ease;
}
.mega-list a:hover{background:var(--c-primary-soft);}
.mega-dot{
  width:8px;height:8px;border-radius:50%;background:var(--c-primary);
  margin-top:9px;flex-shrink:0;
}
.mega-list strong{display:block;font-size:14.5px;color:var(--c-ink);font-weight:600;}
.mega-list span{display:block;font-size:12.5px;color:var(--c-muted);line-height:1.5;}
.mega-news li + li{border-top:1px solid var(--c-line);}
.mega-news a{display:block;padding:10px 4px;font-size:14px;color:#3C4E4C;}
.mega-news a:hover{color:var(--c-primary);}
.mega-news em{display:block;font-style:normal;font-size:12px;color:var(--c-muted);margin-top:2px;}
.mega-card{
  margin-top:14px;border:1px solid var(--c-line);border-radius:14px;
  overflow:hidden;background:#fff;
}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mega-card .mega-card-body{padding:12px 14px;}
.mega-card strong{font-size:14px;display:block;color:var(--c-ink);}
.mega-card span{font-size:12.5px;color:var(--c-muted);}

.nav-toggle{
  display:none;margin-left:auto;
  background:#fff;border:1px solid var(--c-line);border-radius:10px;
  width:46px;height:46px;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{
  display:block;width:20px;height:2px;background:var(--c-ink);border-radius:2px;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--c-ink);border-radius:2px;
  transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.active span{background:transparent;}
.nav-toggle.active span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.active span::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ 页头 ============ */
.page-head{
  position:relative;
  background:linear-gradient(180deg,#E4F2F1 0%,#F5F8F7 100%);
  padding:56px 0 52px;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.page-head::before{
  content:"";position:absolute;right:-140px;top:-170px;width:520px;height:520px;
  border-radius:50%;
  border:1px solid rgba(14,124,123,.14);
  box-shadow:0 0 0 60px rgba(14,124,123,.05),0 0 0 140px rgba(14,124,123,.03);
  pointer-events:none;
}
.page-head::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:170px;
  background-image:radial-gradient(rgba(14,124,123,.16) 1.5px,transparent 1.5px);
  background-size:22px 22px;
  opacity:.4;
  -webkit-mask-image:linear-gradient(to top,rgba(0,0,0,.7),transparent);
  mask-image:linear-gradient(to top,rgba(0,0,0,.7),transparent);
  pointer-events:none;
}
.page-head .container{position:relative;z-index:1;}
.breadcrumb-line{
  display:flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--c-muted);margin-bottom:18px;
}
.breadcrumb-line a{color:var(--c-muted);}
.breadcrumb-line a:hover{color:var(--c-primary);}
.breadcrumb-line span.sep{color:#BDCBC8;}
.page-head h1{
  font-size:clamp(28px,4.2vw,44px);
  font-weight:700;line-height:1.25;letter-spacing:-.5px;
  max-width:820px;
}
.page-head .lead{
  font-size:17px;color:#43565395;color:#435653;
  max-width:760px;margin-top:16px;line-height:1.75;
}
.head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-block;font-size:12.5px;font-weight:600;
  padding:6px 14px;border-radius:999px;
  background:#fff;color:var(--c-primary);border:1px solid rgba(14,124,123,.2);
}

/* ============ 双栏布局 ============ */
.layout-2col{
  display:grid;
  grid-template-columns:264px minmax(0,1fr);
  gap:44px;
  align-items:start;
}
.side-nav{
  position:sticky;top:96px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px 20px;
  box-shadow:var(--sh-1);
}
.side-nav h2{
  font-size:13px;font-weight:600;color:var(--c-muted);
  letter-spacing:.6px;margin-bottom:14px;
}
.side-nav a{
  display:block;
  font-size:14.5px;
  color:#3C4E4C;
  padding:11px 12px;
  border-radius:10px;
  border-left:3px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
  min-height:44px;
}
.side-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-left-color:var(--c-primary);}
.side-nav a.current{background:var(--c-primary-soft);color:var(--c-primary-dark);font-weight:600;border-left-color:var(--c-primary);}
.side-nav .side-note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-muted);line-height:1.65;
}

/* ============ 板块 ============ */
.section{padding:var(--sec-space) 0;}
.section-tight{padding:0 0 var(--sec-space);}
.flow-block + .flow-block{margin-top:64px;}
.section-title{font-size:clamp(24px,3vw,32px);font-weight:600;line-height:1.3;}
.section-sub{font-size:15.5px;color:var(--c-muted);margin-top:10px;max-width:720px;}
.block-head{margin-bottom:26px;}
.block-head .kicker{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-soft);border-radius:999px;padding:5px 13px;margin-bottom:12px;
}

/* ============ 表格 ============ */
.table-wrap{
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:#fff;
  overflow-x:auto;
  box-shadow:var(--sh-1);
}
table.data-table{
  width:100%;
  min-width:680px;
  border-collapse:collapse;
  font-size:15px;
}
table.data-table thead th{
  background:var(--c-primary-soft);
  color:var(--c-ink);
  font-weight:600;
  font-size:14px;
  text-align:left;
  padding:16px 20px;
  border-bottom:1px solid var(--c-line);
  white-space:nowrap;
}
table.data-table tbody td{
  padding:16px 20px;
  border-bottom:1px solid var(--c-line);
  color:var(--c-body);
  vertical-align:top;
  line-height:1.7;
}
table.data-table tbody tr:last-child td{border-bottom:none;}
table.data-table tbody tr:hover{background:#FAFCFB;}
table.data-table td:first-child{
  color:var(--c-ink);font-weight:600;white-space:nowrap;
}
.badge-soft{
  display:inline-block;font-size:12.5px;font-weight:600;
  padding:4px 11px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
}
.badge-coral{
  display:inline-block;font-size:12.5px;font-weight:600;
  padding:4px 11px;border-radius:999px;
  background:var(--c-secondary-soft);color:#C1442A;
}
.table-note{font-size:13.5px;color:var(--c-muted);margin-top:14px;}

/* ============ 三步操作条 ============ */
.step-row{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.step-item{
  position:relative;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px 24px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(14,124,123,.3);}
.step-num{
  width:40px;height:40px;border-radius:12px;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:16px;margin-bottom:16px;
}
.step-item h3{font-size:18px;margin-bottom:8px;}
.step-item p{font-size:14.5px;color:var(--c-body);line-height:1.7;}
.step-item::after{
  content:"";position:absolute;top:44px;right:-16px;width:8px;height:8px;
  border-top:2px solid var(--c-line);border-right:2px solid var(--c-line);
  transform:rotate(45deg);
}
.step-item:last-child::after{display:none;}

/* ============ 提示卡 ============ */
.tip-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.tip-card{
  background:#fff;
  border:1px solid var(--c-line);
  border-left:4px solid var(--c-secondary);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
}
.tip-card h3{
  font-size:17px;margin-bottom:10px;display:flex;align-items:center;gap:10px;
}
.tip-card h3 .dot{
  width:8px;height:8px;border-radius:50%;background:var(--c-secondary);flex-shrink:0;
}
.tip-card p{font-size:14.5px;line-height:1.75;}
.tip-card ul{margin-top:10px;}
.tip-card li{
  position:relative;padding-left:18px;font-size:14.5px;line-height:1.75;color:var(--c-body);
}
.tip-card li + li{margin-top:6px;}
.tip-card li::before{
  content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;
  border-radius:50%;background:rgba(14,124,123,.45);
}

/* ============ FAQ ============ */
.faq-accordion .accordion-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-accordion .accordion-item:last-child{margin-bottom:0;}
.faq-accordion .accordion-button{
  background:#fff;
  color:var(--c-ink);
  font-size:16px;
  font-weight:600;
  padding:20px 56px 20px 22px;
  border:none;
  box-shadow:none;
  border-radius:12px;
  position:relative;
  line-height:1.5;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--c-primary);
  background:#FAFCFB;
  box-shadow:none;
}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:3px solid rgba(14,124,123,.25);outline-offset:-3px;}
.faq-accordion .accordion-button::after{
  content:"";position:absolute;right:24px;top:50%;
  width:12px;height:12px;margin-top:-8px;
  background:none;
  border-right:2px solid var(--c-muted);
  border-bottom:2px solid var(--c-muted);
  transform:rotate(45deg);
  transition:transform .2s ease,border-color .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  border-color:var(--c-primary);
  transform:rotate(-135deg);
  margin-top:-2px;
}
.faq-accordion .accordion-body{
  padding:0 22px 22px;
  font-size:15px;
  color:var(--c-body);
  line-height:1.8;
}

/* ============ CTA ============ */
.cta-band{
  background:var(--c-primary-soft);
  border-radius:24px;
  padding:44px;
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:36px;
  align-items:center;
  border:1px solid rgba(14,124,123,.14);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;}
.cta-band p{margin-top:12px;font-size:15.5px;color:#3F5350;}
.cta-points{margin-top:18px;}
.cta-points li{
  position:relative;padding-left:22px;font-size:14.5px;color:#3F5350;line-height:1.7;
}
.cta-points li + li{margin-top:8px;}
.cta-points li::before{
  content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:3px;
  background:var(--c-primary);opacity:.85;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-figure{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid rgba(14,124,123,.16);
  background:#fff;
}
.cta-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-deep);
  color:#B9CBC8;
  padding:64px 0 0;
  margin-top:var(--sec-space);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:48px;
}
.site-footer .brand{margin-bottom:16px;}
.site-footer .brand-mark{background:rgba(255,255,255,.08);color:#7FD7D5;}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text em{color:#8FB0AC;}
.footer-brand p{font-size:14px;line-height:1.8;color:#A9BFBB;}
.footer-domain{
  display:inline-block;margin-top:16px;
  font-size:13px;color:#8FB0AC;letter-spacing:.3px;
}
.footer-col h4{
  font-size:14px;font-weight:600;color:#7FD7D5;
  margin-bottom:16px;letter-spacing:.4px;
}
.footer-col ul li + li{margin-top:10px;}
.footer-col a{
  font-size:14px;color:#C4D6D3;
}
.footer-col a:hover{color:#fff;}
.footer-col p{font-size:14px;line-height:1.8;color:#A9BFBB;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;
  font-size:13px;color:#8FB0AC;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 28px;}
  .layout-2col{grid-template-columns:230px minmax(0,1fr);gap:32px;}
}
@media (max-width:991px){
  :root{--sec-space:64px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-tools{display:none;}
  .main-nav.open{
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    position:absolute;
    left:0;right:0;top:72px;
    background:#fff;
    border-bottom:1px solid var(--c-line);
    box-shadow:var(--sh-2);
    padding:10px 20px 20px;
    margin-left:0;
  }
  .main-nav.open a{
    padding:16px 4px;
    border-bottom:1px solid var(--c-line);
    font-size:15.5px;
  }
  .main-nav.open a::after{display:none;}
  .main-nav.open a.active{color:var(--c-primary);}
  .layout-2col{grid-template-columns:1fr;gap:28px;}
  .side-nav{position:static;padding:18px 16px;}
  .side-nav h2{margin-bottom:10px;}
  .side-nav a{display:inline-block;width:calc(50% - 6px);vertical-align:top;margin:3px 3px 0 0;border-left:none;border:1px solid var(--c-line);text-align:center;}
  .side-nav a.current{border-color:var(--c-primary);}
  .side-nav a:hover{border-left-color:var(--c-line);}
  .side-nav .side-note{display:none;}
  .mega-panel{display:none;}
  .step-row{grid-template-columns:1fr;}
  .step-item::after{display:none;}
  .tip-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-head{padding:44px 0 40px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .page-head h1{font-size:26px;}
  .page-head .lead{font-size:15.5px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  table.data-table{min-width:600px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --c-primary:#0E7C7B;
  --c-primary-dark:#075E5C;
  --c-primary-soft:#E4F2F1;
  --c-secondary:#FF7A59;
  --c-secondary-soft:#FFEDE7;
  --c-accent:#F5B740;
  --c-ink:#0F1F1E;
  --c-body:#51625F;
  --c-muted:#8A9A97;
  --c-line:#E2EAE8;
  --c-bg:#F5F8F7;
  --c-surface:#FFFFFF;
  --c-deep:#0B2B2A;
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(15,31,30,.04);
  --sh-2:0 8px 24px rgba(15,31,30,.08);
  --sec-y:88px;
  --font-cn:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",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;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(14,124,123,.25);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{color:var(--c-ink);margin:0;font-weight:600;letter-spacing:-.2px;}
h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.5px;}
h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
h3{font-size:19px;line-height:1.45;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:var(--sec-y) 0;}
.section--tight{padding:64px 0;}
.section--soft{background:var(--c-primary-soft);}
.section--surface{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}

.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{margin-bottom:14px;}
.sec-head p{color:var(--c-body);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.6px;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:16px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:all .18s ease;
  font-family:var(--font-cn);
}
.btn-primary-c{
  background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);
}
.btn-primary-c:hover{
  background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);
}
.btn-outline-c{
  background:transparent;color:var(--c-primary);border-color:var(--c-primary);
}
.btn-outline-c:hover{
  background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary-dark);
}
.btn-light-c{
  background:#fff;color:var(--c-primary-dark);
}
.btn-light-c:hover{background:#EAF7F6;color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-ghost-c{
  background:transparent;border:none;color:var(--c-primary);padding:0;min-height:auto;font-weight:600;
}
.btn-ghost-c:hover{color:var(--c-primary-dark);transform:translateX(2px);}
.btn-ghost-c i{font-size:13px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-stuck{
  border-bottom-color:var(--c-line);
  box-shadow:0 2px 12px rgba(15,31,30,.06);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:var(--c-primary);
  color:#fff;
}
.brand-mark svg{width:21px;height:21px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--c-ink);letter-spacing:0;}
.brand-text em{font-style:normal;font-size:12px;color:var(--c-primary);letter-spacing:1.2px;}

.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav a{
  position:relative;
  font-size:15px;color:var(--c-body);
  padding:6px 0;
  transition:color .18s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:center;transition:transform .18s ease;
}
.main-nav a:hover{color:var(--c-primary);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}

.nav-tools{display:flex;align-items:center;gap:12px;}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 18px;
  border-radius:var(--r-btn);
  border:1.5px solid var(--c-line);
  background:#fff;color:var(--c-ink);
  font-size:14px;font-weight:600;font-family:var(--font-cn);
  cursor:pointer;transition:all .18s ease;
}
.mega-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
  transition:all .18s ease;
}
.nav-cta:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}
.nav-burger{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1.5px solid var(--c-line);background:#fff;color:var(--c-ink);
  align-items:center;justify-content:center;font-size:17px;cursor:pointer;
}

/* Mega 面板 */
.mega-panel{
  position:absolute;right:32px;top:72px;
  width:min(760px,calc(100vw - 48px));
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  padding:24px;
  display:grid;grid-template-columns:1.05fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{
  font-size:13px;font-weight:600;color:var(--c-muted);
  letter-spacing:.6px;margin-bottom:14px;
}
.mega-list li+li{margin-top:6px;}
.mega-list a{
  display:flex;gap:12px;align-items:flex-start;
  padding:10px 12px;border-radius:12px;color:var(--c-body);
  transition:background .18s ease,color .18s ease;
}
.mega-list a:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.mega-list i{
  width:30px;height:30px;flex:0 0 30px;border-radius:9px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;
}
.mega-list strong{display:block;font-size:14px;font-weight:600;color:var(--c-ink);line-height:1.5;}
.mega-list span{display:block;font-size:12.5px;color:var(--c-muted);line-height:1.55;}
.mega-news li{
  padding:10px 0;border-bottom:1px solid var(--c-line);
  font-size:14px;line-height:1.6;
}
.mega-news li:last-child{border-bottom:none;}
.mega-news a{color:var(--c-body);}
.mega-news a:hover{color:var(--c-primary);}
.mega-news em{display:block;font-style:normal;font-size:12.5px;color:var(--c-muted);margin-top:2px;}
.mega-card{
  margin-top:14px;border:1px solid var(--c-line);border-radius:14px;
  overflow:hidden;display:block;
}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mega-card span{
  display:block;padding:12px 14px;font-size:13.5px;font-weight:600;
  color:var(--c-ink);line-height:1.5;
}
.mega-card:hover span{color:var(--c-primary);}

/* 移动端菜单 */
.mobile-panel{
  display:none;
  border-top:1px solid var(--c-line);
  background:#fff;
  padding:12px 0 20px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel ul li a{
  display:block;padding:14px 4px;font-size:15px;color:var(--c-body);
  border-bottom:1px solid var(--c-line);
  min-height:44px;
}
.mobile-panel ul li a.active{color:var(--c-primary);font-weight:600;}
.mobile-panel .btn{width:100%;margin-top:16px;}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;
  min-height:400px;
  display:flex;align-items:center;
  background-color:var(--c-deep);
  overflow:hidden;
}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(115deg,rgba(11,43,42,.88),rgba(14,124,123,.62)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.page-hero__deco{
  position:absolute;inset:0;
  background-image:
    radial-gradient(circle at 86% 22%,rgba(255,255,255,.16),transparent 42%),
    radial-gradient(rgba(255,255,255,.22) 1px,transparent 1px);
  background-size:auto,24px 24px;
  opacity:.5;
}
.page-hero__inner{position:relative;z-index:2;padding:96px 0 88px;max-width:820px;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(255,255,255,.78);margin-bottom:20px;
}
.crumb a{color:rgba(255,255,255,.9);}
.crumb a:hover{color:#fff;}
.crumb i{font-size:10px;}
.page-hero h1{color:#fff;margin-bottom:18px;}
.page-hero p{
  color:rgba(255,255,255,.86);font-size:17px;max-width:640px;margin-bottom:28px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:500;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.24);
  color:#fff;
  backdrop-filter:blur(2px);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 竖向时间线 ---------- */
.timeline{position:relative;max-width:900px;margin:0 auto;}
.timeline::before{
  content:"";position:absolute;left:23px;top:12px;bottom:12px;width:2px;
  background:var(--c-line);border-radius:2px;
}
.tl-item{position:relative;padding:0 0 34px 72px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:0;top:0;
  width:48px;height:48px;border-radius:50%;
  background:#fff;border:2px solid var(--c-line);
  color:var(--c-muted);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
  transition:all .2s ease;
}
.tl-item.is-current .tl-dot{
  border-color:var(--c-primary);color:#fff;background:var(--c-primary);
  box-shadow:0 0 0 8px rgba(14,124,123,.12);
}
.tl-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px 26px;
  box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,transform .2s ease;
}
.tl-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.tl-card h3{margin-bottom:10px;}
.tl-card p{margin-bottom:12px;}
.tl-meta{
  display:flex;flex-wrap:wrap;gap:10px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:500;
  padding:4px 12px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
}
.chip--warn{background:var(--c-secondary-soft);color:#C24A2C;}
.chip--top{background:#FDF3DA;color:#8A6100;}
.tl-note{
  margin-top:12px;padding:14px 18px;border-radius:12px;
  background:var(--c-bg);border-left:3px solid var(--c-primary);
  font-size:14.5px;color:var(--c-body);
}

/* ---------- Zigzag 图文交替 ---------- */
.zigzag{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.zigzag+.zigzag{margin-top:72px;}
.zigzag__media{
  border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  background:var(--c-primary-soft);
}
.zigzag__media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease;}
.zigzag__media:hover img{transform:scale(1.03);}
.zigzag__body h3{margin-bottom:14px;font-size:22px;}
.zigzag__body p{color:var(--c-body);}
.zigzag--reverse .zigzag__media{order:2;}
.zigzag--reverse .zigzag__body{order:1;}
.mini-list{margin:18px 0 20px;}
.mini-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--c-body);padding:7px 0;
}
.mini-list i{color:var(--c-primary);font-size:13px;margin-top:6px;}

/* ---------- 要点小卡 ---------- */
.point-row{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.point-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:all .2s ease;
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE3E1;}
.point-card i.pc-icon{
  width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:17px;margin-bottom:16px;
}
.point-card h3{font-size:17px;margin-bottom:10px;}
.point-card p{font-size:14.5px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#CFE3E1;}
.faq-item.is-open{border-color:#BEDDDC;box-shadow:var(--sh-1);}
.faq-q{
  width:100%;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;min-height:44px;
  background:transparent;border:none;cursor:pointer;
  font-family:var(--font-cn);
  font-size:16px;font-weight:600;color:var(--c-ink);
  transition:color .2s ease;
}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:12px;transition:transform .2s ease,background .2s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--c-primary);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .26s ease;
}
.faq-a-inner{
  padding:0 22px 20px;font-size:15px;color:var(--c-body);
}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--c-deep);
  border-radius:var(--r-card);
  padding:52px 48px;
  color:rgba(255,255,255,.84);
  display:grid;grid-template-columns:1.25fr .95fr;gap:44px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:300px;height:300px;
  border-radius:50%;background:rgba(14,124,123,.35);
}
.cta-band__body{position:relative;z-index:2;}
.cta-band h2{color:#fff;margin-bottom:16px;}
.cta-band p{color:rgba(255,255,255,.78);margin-bottom:20px;}
.cta-band .mini-list li{color:rgba(255,255,255,.84);}
.cta-band .mini-list i{color:#7FD3D2;}
.cta-form{
  position:relative;z-index:2;
  background:#fff;border-radius:var(--r-card);
  padding:28px 26px;
}
.cta-form h3{font-size:18px;margin-bottom:18px;}
.form-field{margin-bottom:16px;}
.form-field label{
  display:block;font-size:13px;font-weight:500;color:var(--c-ink);margin-bottom:7px;
}
.req{color:var(--c-secondary);margin-left:4px;}
.form-input,.form-select{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-input);
  font-size:15px;font-family:var(--font-cn);color:var(--c-ink);
  background:#fff;transition:all .18s ease;
}
.form-input::placeholder{color:#A9B7B4;}
.form-input:focus,.form-select:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,123,.14);
}
.form-select{appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%238A9A97' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:12px;padding-right:36px;}
.form-submit{width:100%;}
.form-hint{font-size:12.5px;color:var(--c-muted);margin-top:12px;line-height:1.6;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-deep);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
  margin-top:var(--sec-y);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:#7FD3D2;}
.footer-brand .brand-mark{background:var(--c-primary);}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.75;margin-bottom:14px;}
.footer-domain{
  display:inline-block;font-size:13px;color:#7FD3D2;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.12);
  border-radius:999px;padding:5px 14px;
}
.footer-col h4{
  font-size:14px;color:#7FD3D2;font-weight:600;margin-bottom:16px;letter-spacing:.4px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col ul li a:hover{color:#fff;}
.footer-col p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.75;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.56);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 28px;}
  .zigzag{gap:40px;}
}
@media (max-width:991px){
  :root{--sec-y:64px;}
  .main-nav,.nav-cta{display:none;}
  .nav-burger{display:inline-flex;}
  .mega-panel{display:none;}
  .page-hero__inner{padding:72px 0 64px;}
  .zigzag{grid-template-columns:1fr;gap:26px;}
  .zigzag--reverse .zigzag__media,
  .zigzag--reverse .zigzag__body{order:0;}
  .zigzag+.zigzag{margin-top:56px;}
  .point-row{grid-template-columns:1fr 1fr;}
  .cta-band{grid-template-columns:1fr;padding:40px 30px;gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--sec-y:48px;}
  .container{padding:0 20px;}
  .page-hero{min-height:340px;}
  .page-hero__inner{padding:56px 0 52px;}
  .page-hero p{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .timeline::before{left:19px;}
  .tl-item{padding:0 0 30px 58px;}
  .tl-dot{width:40px;height:40px;font-size:14px;}
  .tl-card{padding:20px;}
  .point-row{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;border-radius:14px;}
  .cta-form{padding:22px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
  .btn:hover,.tl-card:hover,.point-card:hover,.zigzag__media:hover img{transform:none;}
}

/* roulang page: category4 */
:root{
  --c-primary:#0E7C7B;
  --c-primary-dark:#075E5C;
  --c-primary-soft:#E4F2F1;
  --c-secondary:#FF7A59;
  --c-secondary-soft:#FFEDE7;
  --c-accent:#F5B740;
  --c-accent-soft:#FDF3DF;
  --c-ink:#0F1F1E;
  --c-body:#51625F;
  --c-muted:#8A9A97;
  --c-line:#E2EAE8;
  --c-bg:#F5F8F7;
  --c-surface:#FFFFFF;
  --c-deep:#0B2B2A;

  --radius-card:16px;
  --radius-img:14px;
  --radius-input:10px;
  --radius-btn:12px;
  --radius-pill:999px;

  --shadow-1:0 1px 2px rgba(15,31,30,.04);
  --shadow-2:0 8px 24px rgba(15,31,30,.08);

  --space-section:88px;
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;

  --bs-primary:#0E7C7B;
  --bs-body-color:#51625F;
  --bs-body-bg:#F5F8F7;
  --bs-link-color:#0E7C7B;
  --bs-link-hover-color:#075E5C;
  --bs-border-color:#E2EAE8;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:600;letter-spacing:-.2px;}
h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.5px;}
h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
h3{font-size:clamp(18px,2vw,21px);line-height:1.45;}
p{margin:0 0 16px;line-height:1.75;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-dark);}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
  outline:3px solid rgba(14,124,123,.25);
  outline-offset:2px;
  border-radius:6px;
}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:var(--space-section) 0;}
.section-soft{background:var(--c-primary-soft);}
.section-surface{background:var(--c-surface);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:var(--radius-pill);
  padding:6px 14px;margin-bottom:16px;
}
.section-head p{margin-top:14px;font-size:16px;color:var(--c-body);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.scrolled{
  border-bottom-color:var(--c-line);
  box-shadow:0 4px 18px rgba(15,31,30,.06);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;position:relative;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:linear-gradient(140deg,#0E7C7B,#075E5C);
  color:#fff;
}
.brand-mark svg{width:21px;height:21px;}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-text strong{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px;}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.22em;color:var(--c-primary);font-weight:600;}

.main-nav{
  display:flex;align-items:center;gap:26px;
  margin-left:auto;
}
.main-nav a{
  position:relative;
  font-size:15px;color:var(--c-body);font-weight:500;
  padding:8px 2px;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.main-nav a:hover{color:var(--c-primary-dark);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}

.header-tools{display:flex;align-items:center;gap:12px;position:relative;}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 18px;
  border:1.5px solid var(--c-primary);
  border-radius:var(--radius-pill);
  background:transparent;color:var(--c-primary);
  font-size:14px;font-weight:600;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.mega-toggle:hover{background:var(--c-primary-soft);transform:translateY(-1px);}
.mega-toggle i{font-size:12px;transition:transform .2s ease;}
.mega-toggle[aria-expanded="true"] i{transform:rotate(180deg);}

.nav-burger{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);border-radius:12px;
  background:#fff;color:var(--c-ink);font-size:16px;
}

.mega-panel{
  position:absolute;top:calc(100% + 16px);right:0;
  width:min(720px,88vw);
  background:#fff;border:1px solid var(--c-line);
  border-radius:16px;box-shadow:var(--shadow-2);
  padding:24px;
  display:grid;grid-template-columns:1.05fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
  z-index:1040;
}
.mega-panel.open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{
  font-size:12px;letter-spacing:.14em;font-weight:700;
  color:var(--c-muted);margin-bottom:14px;
}
.mega-list li + li{margin-top:6px;}
.mega-list a{
  display:flex;gap:12px;align-items:flex-start;
  padding:10px 12px;border-radius:12px;
  transition:background .18s ease;
}
.mega-list a:hover{background:var(--c-primary-soft);}
.mega-list .ico{
  width:30px;height:30px;flex:0 0 30px;border-radius:9px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;
}
.mega-list b{display:block;font-size:14px;color:var(--c-ink);font-weight:600;}
.mega-list span{display:block;font-size:12.5px;color:var(--c-muted);line-height:1.55;}
.mega-news li + li{border-top:1px solid var(--c-line);}
.mega-news a{display:block;padding:10px 2px;font-size:14px;color:var(--c-body);}
.mega-news a:hover{color:var(--c-primary);}
.mega-news em{display:block;font-style:normal;font-size:12px;color:var(--c-muted);margin-top:4px;}
.mega-card{
  margin-top:14px;display:block;
  border:1px solid var(--c-line);border-radius:14px;overflow:hidden;
  background:#fff;transition:transform .2s ease,box-shadow .2s ease;
}
.mega-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mega-card b{display:block;padding:12px 14px 4px;font-size:14px;color:var(--c-ink);}
.mega-card span{display:block;padding:0 14px 14px;font-size:12.5px;color:var(--c-muted);}

/* ============ 页头（简版） ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 52px;
  background:linear-gradient(180deg,#E4F2F1 0%,#F5F8F7 100%);
  border-bottom:1px solid var(--c-line);
}
.page-hero::before,
.page-hero::after{
  content:"";position:absolute;border-radius:50%;pointer-events:none;
}
.page-hero::before{
  width:560px;height:560px;right:-140px;top:-260px;
  border:1px solid rgba(14,124,123,.14);
  box-shadow:0 0 0 60px rgba(14,124,123,.045);
}
.page-hero::after{
  width:280px;height:280px;left:-120px;bottom:-160px;
  background-image:radial-gradient(rgba(14,124,123,.18) 1.5px,transparent 1.6px);
  background-size:16px 16px;
}
.page-hero .container{position:relative;z-index:1;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);margin-bottom:18px;
}
.crumbs a{color:var(--c-muted);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs i{font-size:10px;opacity:.7;}
.page-hero h1{max-width:820px;}
.page-hero .lead{
  max-width:720px;margin-top:16px;font-size:17px;color:var(--c-body);
}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--c-line);
  font-size:13px;color:var(--c-body);font-weight:500;
  transition:border-color .18s ease,transform .18s ease,color .18s ease;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}
.chip i{color:var(--c-primary);font-size:12px;}

/* ============ 速览条 ============ */
.quick-rows{display:grid;gap:14px;}
.quick-row{
  display:grid;grid-template-columns:auto 1fr auto;
  align-items:center;gap:20px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  padding:20px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quick-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFE2E0;}
.quick-row .num{
  width:44px;height:44px;flex:0 0 44px;border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-weight:700;font-size:15px;
}
.quick-row h3{font-size:17px;margin-bottom:4px;}
.quick-row p{margin:0;font-size:14.5px;color:var(--c-body);}
.quick-row .go{
  font-size:13.5px;font-weight:600;color:var(--c-primary);white-space:nowrap;
}
.quick-row .go i{font-size:11px;margin-left:4px;}

/* ============ 卡片网格 ============ */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:28px;
}
.res-card{
  display:flex;flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.res-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFE2E0;}
.res-card figure{margin:0;overflow:hidden;background:var(--c-primary-soft);}
.res-card img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform .35s ease;
}
.res-card:hover img{transform:scale(1.03);}
.res-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.res-card .badge{
  align-self:flex-start;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:5px 12px;border-radius:var(--radius-pill);
  background:var(--c-primary-soft);color:var(--c-primary);
}
.res-card .badge.b-amber{background:var(--c-accent-soft);color:#8A5B00;}
.res-card .badge.b-coral{background:var(--c-secondary-soft);color:#C0431F;}
.res-card h3{font-size:18px;margin:14px 0 10px;}
.res-card p{
  font-size:14.5px;color:var(--c-body);margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.res-card .meta{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-muted);
}
.res-card .meta a{font-weight:600;font-size:13.5px;}
.res-card .meta a i{font-size:11px;margin-left:4px;}

/* ============ 小贴士 ============ */
.tips{
  background:var(--c-primary-soft);
  border:1px solid #CBE6E4;
  border-radius:var(--radius-card);
  padding:36px 32px;
}
.tips-head{display:flex;align-items:center;gap:12px;margin-bottom:22px;}
.tips-head .t-ico{
  width:40px;height:40px;border-radius:12px;
  background:#fff;color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
}
.tips-head h2{font-size:22px;}
.tips-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.tip{
  background:#fff;border-radius:14px;padding:20px 22px;
  border-left:3px solid var(--c-secondary);
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.tip:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.tip b{display:block;font-size:15px;color:var(--c-ink);margin-bottom:6px;}
.tip p{margin:0;font-size:14px;color:var(--c-body);}

/* ============ 更多入口 ============ */
.more-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.more-item{
  display:flex;align-items:center;gap:16px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:14px;padding:18px 22px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.more-item:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.more-item .m-ico{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--c-secondary-soft);color:#C0431F;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
}
.more-item b{display:block;font-size:15.5px;color:var(--c-ink);}
.more-item span{display:block;font-size:13px;color:var(--c-muted);}
.more-item .arrow{margin-left:auto;color:var(--c-muted);font-size:13px;}
.more-note{
  margin-top:22px;font-size:13.5px;color:var(--c-muted);
  display:flex;align-items:center;gap:8px;
}

/* ============ 底部 CTA ============ */
.cta-band{
  background:
    radial-gradient(circle at 88% 12%, rgba(14,124,123,.34) 0%, rgba(14,124,123,0) 46%),
    var(--c-deep);
  border-radius:24px;
  padding:56px 52px;
  color:#DCE8E7;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-140px;
  width:360px;height:360px;border-radius:50%;
  border:1px solid rgba(255,255,255,.12);
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.25fr 1fr;gap:40px;align-items:center;}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:#B9CFCD;font-size:15px;max-width:560px;}
.cta-points{display:grid;gap:10px;margin-top:22px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#CFE0DE;}
.cta-points i{color:var(--c-accent);margin-top:5px;font-size:13px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.btn-main,.btn-ghost,.btn-inverse{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-main{
  background:var(--c-primary);color:#fff;border:1.5px solid var(--c-primary);
  box-shadow:0 1px 2px rgba(15,31,30,.06);
}
.btn-main:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-ghost{
  background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary);
}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-inverse{
  background:#fff;color:var(--c-deep);border:1.5px solid #fff;
}
.btn-inverse:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-inverse-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--radius-btn);
  background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.42);
  font-size:15px;font-weight:600;
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.btn-inverse-line:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff;transform:translateY(-2px);}
.link-arrow{font-weight:600;font-size:14px;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.link-arrow i{font-size:11px;transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(3px);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-deep);color:#AFC3C1;padding:64px 0 0;margin-top:var(--space-section);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;
}
.site-footer .brand{margin-bottom:16px;}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text em{color:#6FC7C4;}
.footer-brand p{font-size:14px;color:#9FB6B4;line-height:1.75;margin-bottom:16px;max-width:340px;}
.footer-domain{
  display:inline-block;font-size:13px;color:#8FB0AE;
  border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-pill);
  padding:5px 14px;
}
.footer-col h4{
  color:#7FD3D0;font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:16px;
}
.footer-col ul li + li{margin-top:10px;}
.footer-col a{font-size:14px;color:#AFC3C1;}
.footer-col a:hover{color:#fff;}
.footer-col p{font-size:14px;color:#9FB6B4;line-height:1.75;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8FB0AE;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .main-nav{gap:20px;}
  .card-grid{gap:24px;}
}
@media (max-width:991px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .nav-burger{display:inline-flex;align-items:center;justify-content:center;}
  .main-nav{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border:1px solid var(--c-line);border-radius:16px;
    box-shadow:var(--shadow-2);padding:14px;
    display:none;
  }
  .main-nav.open{display:flex;}
  .main-nav a{padding:12px 14px;border-radius:10px;font-size:15px;}
  .main-nav a::after{display:none;}
  .main-nav a:hover,.main-nav a.active{background:var(--c-primary-soft);}
  .mega-toggle{display:none;}
  .mega-panel{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .tips-grid{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .page-hero{padding:40px 0 36px;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .more-grid{grid-template-columns:1fr;}
  .quick-row{grid-template-columns:auto 1fr;gap:14px;}
  .quick-row .go{grid-column:2;justify-self:start;}
  .cta-band{padding:36px 24px;border-radius:18px;}
  .btn-main,.btn-ghost,.btn-inverse,.btn-inverse-line{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .tips{padding:26px 20px;}
  .section-head{margin-bottom:32px;}
}
@media (max-width:520px){
  .brand-text strong{font-size:15.5px;}
  .brand-text em{font-size:10px;letter-spacing:.16em;}
  .page-hero h1{font-size:27px;}
  .res-card .body{padding:18px 18px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .quick-row:hover,.res-card:hover,.tip:hover,.more-item:hover,
  .btn-main:hover,.btn-ghost:hover,.btn-inverse:hover,.btn-inverse-line:hover,
  .mega-toggle:hover,.chip:hover{transform:none;}
  .res-card:hover img{transform:none;}
}

/* roulang page: category5 */
:root{
  --c-primary:#0E7C7B;
  --c-primary-dark:#075E5C;
  --c-primary-soft:#E4F2F1;
  --c-secondary:#FF7A59;
  --c-secondary-soft:#FFEDE7;
  --c-accent:#F5B740;
  --c-ink:#0F1F1E;
  --c-body:#51625F;
  --c-muted:#8A9A97;
  --c-line:#E2EAE8;
  --c-bg:#F5F8F7;
  --c-surface:#FFFFFF;
  --c-deep:#0B2B2A;
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(15,31,30,.04);
  --sh-2:0 8px 24px rgba(15,31,30,.08);
  --sec-space:88px;
  --bs-primary:#0E7C7B;
  --bs-body-color:#51625F;
  --bs-body-bg:#F5F8F7;
  --bs-border-color:#E2EAE8;
  --bs-link-color:#0E7C7B;
  --bs-link-hover-color:#075E5C;
  --bs-font-sans-serif:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",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;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.75;
  color:var(--c-body);
  background:var(--c-bg);
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--c-primary-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(14,124,123,.25);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4,h5{color:var(--c-ink);margin:0;font-weight:600;letter-spacing:-.2px;}
h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.5px;}
h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
h3{font-size:clamp(18px,2vw,22px);line-height:1.45;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1.5px solid transparent;transition:all .2s ease;text-align:center;
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary);transform:translateY(-2px);}
.btn-light-o{background:transparent;color:#fff;border-color:rgba(255,255,255,.65);}
.btn-light-o:hover{background:#fff;color:var(--c-primary-dark);border-color:#fff;transform:translateY(-2px);}
.btn-plain{background:#fff;color:var(--c-primary);border-color:var(--c-line);}
.btn-plain:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-dark);}
.btn-block{width:100%;}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary);font-size:15px;}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.5;
}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.badge-accent{background:#FDF1D8;color:#8A5F0B;}
.badge-coral{background:var(--c-secondary-soft);color:#B23F1F;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:#fff;border-bottom:1px solid transparent;
  transition:box-shadow .22s ease,border-color .22s ease;
}
.site-header.is-stuck{border-bottom-color:var(--c-line);box-shadow:0 4px 16px rgba(15,31,30,.06);}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--c-primary),#12A19F);
  color:#fff;display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:23px;height:23px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16.5px;color:var(--c-ink);font-weight:700;letter-spacing:.2px;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--c-muted);letter-spacing:1.6px;}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto;}
.main-nav a{
  position:relative;font-size:15px;color:var(--c-body);font-weight:500;
  padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;border-radius:2px;
}
.main-nav a:hover{color:var(--c-primary-dark);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);font-weight:700;}
.main-nav a.active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;
  padding:0 16px;border-radius:var(--r-btn);border:1.5px solid var(--c-line);
  background:#fff;color:var(--c-ink);font-size:14.5px;font-weight:600;cursor:pointer;
  transition:all .2s ease;
}
.mega-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.mega-toggle i{font-size:12px;transition:transform .2s ease;}
.mega-toggle[aria-expanded="true"] i{transform:rotate(180deg);}
.nav-burger{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1.5px solid var(--c-line);background:#fff;color:var(--c-ink);
  align-items:center;justify-content:center;font-size:17px;cursor:pointer;
}

/* Mega 面板 */
.mega-panel{
  position:absolute;left:0;right:0;top:72px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.mega-panel.open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-inner{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);padding:26px;display:grid;
  grid-template-columns:1.15fr 1fr;gap:28px;margin-top:12px;
}
.mega-col h5{font-size:13px;color:var(--c-muted);letter-spacing:1.4px;font-weight:600;margin-bottom:14px;}
.mega-list li + li{margin-top:6px;}
.mega-list a{
  display:flex;gap:12px;align-items:flex-start;padding:10px 12px;border-radius:12px;
  transition:background .18s ease;
}
.mega-list a:hover{background:var(--c-primary-soft);}
.mega-list .mi{
  width:34px;height:34px;border-radius:10px;background:var(--c-primary-soft);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;
  font-size:13px;flex:0 0 auto;
}
.mega-list b{display:block;font-size:14.5px;color:var(--c-ink);font-weight:600;}
.mega-list span{display:block;font-size:12.5px;color:var(--c-muted);line-height:1.55;}
.mega-news li{padding:11px 0;border-bottom:1px solid var(--c-line);}
.mega-news li:last-child{border-bottom:0;}
.mega-news a{font-size:14px;color:var(--c-ink);font-weight:500;display:block;}
.mega-news a:hover{color:var(--c-primary);}
.mega-news em{font-style:normal;font-size:12px;color:var(--c-muted);}
.mega-card{
  display:flex;gap:12px;align-items:center;margin-top:14px;padding:12px;
  border:1px solid var(--c-line);border-radius:14px;background:var(--c-bg);
  transition:all .2s ease;
}
.mega-card:hover{border-color:var(--c-primary);box-shadow:var(--sh-1);}
.mega-card img{width:70px;height:52px;object-fit:cover;border-radius:10px;flex:0 0 auto;}
.mega-card b{display:block;font-size:13.5px;color:var(--c-ink);}
.mega-card span{font-size:12px;color:var(--c-muted);}

/* 移动端菜单 */
.mobile-panel{
  display:none;background:#fff;border-top:1px solid var(--c-line);
  box-shadow:var(--sh-2);padding:16px 0 22px;
}
.mobile-panel.open{display:block;}
.mobile-panel .container{display:flex;flex-direction:column;gap:4px;}
.mobile-panel a.m-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 6px;font-size:15.5px;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);font-weight:500;
}
.mobile-panel a.m-link.active{color:var(--c-primary);font-weight:700;}
.mobile-panel .m-cta{margin-top:16px;}

/* ---------- 页头 ---------- */
.qa-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#EFF8F7 0%,var(--c-bg) 100%);
  padding:64px 0 56px;border-bottom:1px solid var(--c-line);
}
.qa-hero::before{
  content:"";position:absolute;right:-120px;top:-140px;width:520px;height:520px;
  border-radius:50%;border:56px solid rgba(14,124,123,.07);
}
.qa-hero::after{
  content:"";position:absolute;left:-90px;bottom:-140px;width:340px;height:340px;
  border-radius:50%;border:40px solid rgba(14,124,123,.055);
}
.qa-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13.5px;color:var(--c-muted);margin-bottom:18px;}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb i{font-size:10px;opacity:.7;}
.qa-hero h1{max-width:820px;margin-bottom:16px;}
.qa-hero .lead-text{font-size:17px;color:var(--c-body);max-width:720px;margin-bottom:28px;}
.qa-search{
  display:flex;align-items:center;gap:12px;max-width:560px;background:#fff;
  border:1px solid var(--c-line);border-radius:14px;padding:8px 8px 8px 18px;
  box-shadow:var(--sh-1);
}
.qa-search i{color:var(--c-muted);font-size:15px;}
.qa-search input{
  border:0;outline:0;flex:1;height:40px;font-size:15px;color:var(--c-ink);background:transparent;
}
.qa-search input::placeholder{color:var(--c-muted);}
.qa-search .btn{min-height:44px;padding:0 20px;border-radius:11px;font-size:14.5px;}
.qa-hints{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.qa-hints span{font-size:13px;color:var(--c-muted);}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sec-space) 0;}
.section-sm{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:42px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-primary);background:var(--c-primary-soft);
  padding:5px 14px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{margin-bottom:12px;}
.section-head p{font-size:16px;color:var(--c-body);}
.bg-surface{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}

/* ---------- 问答双栏 ---------- */
.qa-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start;}
.qa-col{display:flex;flex-direction:column;gap:12px;}
.qa-item{
  background:#fff;border:1px solid var(--c-line);border-radius:12px;
  box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.qa-item:hover{border-color:#CFDEDA;box-shadow:var(--sh-2);}
.qa-item .qa-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;
}
.qa-item .qa-q:hover{color:var(--c-primary);}
.qa-item .qa-q .sign{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:14px;
  transition:transform .22s ease,background .22s ease,color .22s ease;margin-top:2px;
}
.qa-item .qa-q[aria-expanded="true"]{color:var(--c-primary);}
.qa-item .qa-q[aria-expanded="true"] .sign{
  transform:rotate(180deg);background:var(--c-primary);color:#fff;
}
.qa-item .qa-a{padding:0 20px 20px;font-size:15px;color:var(--c-body);line-height:1.85;}
.qa-item .qa-a p{margin-bottom:.6em;}

/* ---------- 标签胶囊组 ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 20px;
  border-radius:999px;background:#fff;border:1px solid var(--c-line);
  font-size:14.5px;color:var(--c-body);font-weight:500;transition:all .2s ease;
}
.tag-pill:hover{border-color:var(--c-primary);color:var(--c-primary-dark);background:var(--c-primary-soft);transform:translateY(-2px);}
.tag-pill i{font-size:13px;color:var(--c-primary);}

/* ---------- 支持卡片 ---------- */
.support-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:stretch;}
.support-card{
  background:var(--c-primary-soft);border:1px solid #CDE7E5;border-radius:var(--r-card);
  padding:38px;display:flex;flex-direction:column;justify-content:center;
}
.support-card h2{margin-bottom:14px;}
.support-card p{color:#2F5754;margin-bottom:22px;}
.support-actions{display:flex;flex-wrap:wrap;gap:14px;}
.support-list{display:flex;flex-direction:column;gap:14px;}
.support-item{
  display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--c-line);
  border-radius:14px;padding:18px 20px;box-shadow:var(--sh-1);transition:all .2s ease;
}
.support-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.support-item .si{
  width:40px;height:40px;border-radius:12px;background:var(--c-secondary-soft);
  color:var(--c-secondary);display:flex;align-items:center;justify-content:center;flex:0 0 auto;font-size:15px;
}
.support-item b{display:block;font-size:15.5px;color:var(--c-ink);font-weight:600;margin-bottom:4px;}
.support-item span{font-size:14px;color:var(--c-body);line-height:1.7;}
.support-figure{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);background:#fff;}
.support-figure img{width:100%;height:100%;min-height:260px;object-fit:cover;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--c-deep);color:#D8E5E3;border-radius:0;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-100px;top:-120px;width:420px;height:420px;
  border-radius:50%;border:48px solid rgba(255,255,255,.045);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:70px 0;}
.cta-inner h2{color:#fff;margin-bottom:14px;}
.cta-inner p{color:#A9C0BD;font-size:16px;margin-bottom:24px;}
.cta-points{display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#C6D8D6;}
.cta-points i{color:var(--c-secondary);margin-top:5px;font-size:13px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-deep);color:#9FB6B3;padding:64px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:#7FA09C;}
.footer-brand p{color:#9FB6B3;line-height:1.8;font-size:13.8px;}
.footer-domain{display:inline-block;margin-top:14px;font-size:13px;color:#7FA09C;border:1px solid rgba(255,255,255,.14);padding:5px 12px;border-radius:999px;}
.footer-col h4{color:#8FD3CF;font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:#9FB6B3;font-size:13.8px;}
.footer-col a:hover{color:#fff;}
.footer-col p{color:#9FB6B3;font-size:13.8px;line-height:1.8;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#7FA09C;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .main-nav{gap:20px;}
  .main-nav a{font-size:14.5px;}
  .header-inner{gap:20px;}
}
@media (max-width:991.98px){
  :root{--sec-space:64px;}
  .container{padding:0 24px;}
  .main-nav{display:none;}
  .nav-burger{display:flex;}
  .mega-toggle{display:none;}
  .mega-panel{display:none;}
  .qa-grid{grid-template-columns:1fr;gap:14px;}
  .support-wrap{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;padding:56px 0;gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767.98px){
  :root{--sec-space:48px;}
  .container{padding:0 20px;}
  .qa-hero{padding:44px 0 40px;}
  .qa-hero .lead-text{font-size:16px;}
  .qa-search{flex-wrap:wrap;padding:14px;border-radius:14px;}
  .qa-search input{width:100%;flex:1 1 100%;}
  .qa-search .btn{width:100%;}
  .section-head{margin-bottom:30px;}
  .support-card{padding:26px;}
  .btn{width:100%;}
  .support-actions .btn,.cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .tag-pill{width:100%;justify-content:center;}
}
@media (max-width:520px){
  h1{font-size:26px;}
  .brand-text strong{font-size:15px;}
  .qa-item .qa-q{font-size:15px;padding:16px;}
  .qa-item .qa-a{padding:0 16px 18px;font-size:14.5px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .btn:hover,.tag-pill:hover,.support-item:hover{transform:none;}
}