/* roulang page: index */
:root{
  --brand-600:#2A54D6;
  --brand-700:#1D3F9E;
  --brand-900:#10265E;
  --brand-100:#E6EDFF;
  --brand-line:rgba(42,84,214,.14);
  --accent-500:#F97316;
  --accent-600:#E2630D;
  --ok-500:#0FA97F;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#FAFBFE;
  --c-line:#E4E8F0;
  --c-text:#12172B;
  --c-text-2:#5B6478;
  --c-text-3:#8A93A6;
  --r-s:8px;
  --r-m:12px;
  --r-l:18px;
  --r-pill:999px;
  --sh-1:0 2px 4px rgba(16,38,94,.04),0 12px 28px rgba(16,38,94,.07);
  --sh-2:0 4px 8px rgba(16,38,94,.06),0 20px 40px rgba(16,38,94,.12);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-700)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px}
::selection{background:var(--brand-100);color:var(--brand-900)}

/* ---------- 容器 ---------- */
.grid-container,.container{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1280px){
  .grid-container,.container{padding-left:32px;padding-right:32px}
}

/* ---------- 基础文本 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-600);
  background:var(--brand-100);
  border:1px solid var(--brand-line);
  border-radius:var(--r-pill);
  padding:6px 14px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent-500);display:inline-block}
h1{font-size:clamp(28px,4.2vw,42px);line-height:1.22;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(22px,3vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
h3{font-size:20px;line-height:1.4;font-weight:600}
.sec-lead{color:var(--c-text-2);font-size:16px;line-height:1.8;max-width:46em}
.sec-head{margin-bottom:40px}
.sec-head h2{margin-bottom:12px}
.sec-head.split{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px}

section.block{padding:88px 0}
section.block.alt{background:var(--c-surface)}
section.block.tight{padding:64px 0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;
  border-radius:10px;
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
  min-height:44px;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 6px 16px rgba(42,84,214,.22)}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(42,84,214,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(42,84,214,.2)}
.btn-ghost{background:var(--c-surface);color:var(--brand-600);border-color:rgba(42,84,214,.28)}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);border-color:rgba(42,84,214,.4)}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:0 6px 16px rgba(249,115,22,.24)}
.btn-accent:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(249,115,22,.3)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-600);
}
.text-link i{font-style:normal;transition:transform .18s ease-out}
.text-link:hover i{transform:translateX(3px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-block;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 10px;
  border-radius:var(--r-pill);
  background:var(--brand-100);
  color:var(--brand-600);
  border:1px solid var(--brand-line);
}
.badge.accent{background:rgba(249,115,22,.1);color:var(--accent-600);border-color:rgba(249,115,22,.2)}
.badge.ok{background:rgba(15,169,127,.1);color:var(--ok-500);border-color:rgba(15,169,127,.2)}
.tag{
  display:inline-block;font-size:12px;color:var(--c-text-2);
  border:1px solid var(--c-line);border-radius:var(--r-pill);
  padding:5px 11px;background:var(--c-surface-2);
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,38,94,.08)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--nav-h)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text)}
.brand:hover{color:var(--brand-600)}
.brand-mark{
  width:28px;height:28px;border-radius:8px;
  background:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-mark svg{width:16px;height:16px}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{
  position:relative;
  display:inline-flex;align-items:center;height:38px;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--c-text-2);
  border-radius:var(--r-s);
  transition:color .18s ease-out,background-color .18s ease-out;
}
.main-nav a:hover{color:var(--brand-600);background:var(--c-surface-2)}
.main-nav a.active{color:var(--brand-600)}
.main-nav a.active::after{
  content:"";position:absolute;left:14px;right:auto;bottom:2px;
  width:20px;height:2px;border-radius:2px;background:var(--brand-600);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-icon-btn{
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--c-line);background:var(--c-surface);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;
}
.nav-icon-btn:hover{background:var(--brand-100);border-color:var(--brand-line)}
.nav-icon-btn svg{width:22px;height:22px;stroke:var(--brand-600)}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:
    linear-gradient(180deg,#FFFFFF 0%,#F3F6FD 100%);
  border-bottom:1px solid var(--c-line);
  padding:72px 0 88px;
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center}
.hero h1{margin:20px 0 16px;max-width:15em}
.hero-sub{
  font-size:clamp(16px,2vw,19px);
  font-weight:600;
  color:var(--brand-700);
  line-height:1.6;
  margin-bottom:14px;
}
.hero-desc{color:var(--c-text-2);font-size:16px;line-height:1.85;max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.trust-list{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:32px;padding-top:24px;border-top:1px solid var(--c-line)}
.trust-list li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--c-text-2)}
.trust-list svg{width:20px;height:20px;stroke:var(--brand-600);flex:0 0 auto}
.hero-visual{position:relative;padding:0 0 44px 0}
.hero-frame{
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  background:#DCE3F3;
}
.hero-frame img{
  width:100%;height:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  filter:saturate(.94);
}
.hero-mini{
  position:absolute;right:-6px;bottom:0;
  width:44%;
  border-radius:var(--r-m);
  overflow:hidden;
  border:4px solid #fff;
  box-shadow:var(--sh-2);
  background:#DCE3F3;
}
.hero-mini img{width:100%;aspect-ratio:4/3;object-fit:cover;filter:saturate(.94)}

/* ---------- 痛点区 ---------- */
.pain-list{border-top:1px solid var(--c-line)}
.pain-row{
  display:grid;
  grid-template-columns:56px minmax(0,1fr) minmax(0,1.25fr);
  gap:20px;
  align-items:start;
  padding:24px 8px;
  border-bottom:1px solid var(--c-line);
  transition:background-color .18s ease-out;
}
.pain-row:hover{background:var(--c-surface-2)}
.pain-num{
  width:40px;height:40px;border-radius:50%;
  border:1.6px solid var(--brand-600);
  color:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.pain-q{font-size:16px;font-weight:600;line-height:1.6}
.pain-a{font-size:15px;color:var(--c-text-2);line-height:1.8}

/* ---------- 方案卡 ---------- */
.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
  height:100%;
  display:flex;
  flex-direction:column;
  overflow:hidden;
}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--brand-line)}
.card-cover{overflow:hidden;background:#DCE3F3}
.card-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;filter:saturate(.94);transition:transform .22s ease-out}
.card:hover .card-cover img{transform:scale(1.03)}
.card-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.card-body h3{font-size:19px}
.card-body p{font-size:15px;color:var(--c-text-2);line-height:1.8}
.card-foot{margin-top:auto;padding-top:8px}
.mini-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  padding:22px 24px 24px;
  height:100%;
  display:flex;flex-direction:column;gap:12px;
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.mini-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--brand-line)}
.mini-card .ic{
  width:44px;height:44px;border-radius:12px;
  background:var(--brand-100);
  display:inline-flex;align-items:center;justify-content:center;
}
.mini-card .ic svg{width:22px;height:22px;stroke:var(--brand-600)}
.mini-card h3{font-size:17px;line-height:1.45}
.mini-card p{font-size:14px;color:var(--c-text-2);line-height:1.8}
.mini-card .card-foot{margin-top:auto}

/* ---------- 数据区 ---------- */
.proof{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.stat-row{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  margin-top:8px;
}
.stat{
  padding:8px 28px;
  border-left:1px solid var(--c-line);
}
.stat:first-child{border-left:none;padding-left:0}
.stat b{
  display:block;
  font-size:clamp(30px,4vw,42px);
  line-height:1.1;font-weight:700;
  color:var(--brand-900);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.stat b em{font-style:normal;font-size:.5em;font-weight:600;color:var(--brand-600);margin-left:4px}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--c-text-2)}
.partner-row{
  display:grid;grid-template-columns:repeat(6,minmax(0,1fr));
  gap:14px;margin-top:44px;padding-top:32px;border-top:1px solid var(--c-line);
}
.partner-row div{
  height:44px;border-radius:var(--r-s);
  background:var(--c-surface-2);
  border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--c-text-3);
  letter-spacing:.06em;
}

/* ---------- 资讯区 ---------- */
.news-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:28px;align-items:start}
.news-lead{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.news-lead:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--brand-line)}
.news-lead .thumb{overflow:hidden;background:#DCE3F3}
.news-lead .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:saturate(.94);transition:transform .22s ease-out}
.news-lead:hover .thumb img{transform:scale(1.03)}
.news-lead .body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px}
.news-lead h3{font-size:21px;line-height:1.45}
.news-lead h3 a{color:var(--c-text)}
.news-lead h3 a:hover{color:var(--brand-600)}
.news-lead p{font-size:15px;color:var(--c-text-2);line-height:1.8}
.news-side{display:flex;flex-direction:column;gap:18px}
.news-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  box-shadow:var(--sh-1);
  padding:18px 20px;
  display:flex;flex-direction:column;gap:10px;
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.news-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--brand-line)}
.news-card h4{font-size:16px;font-weight:600;line-height:1.5}
.news-card h4 a{color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card h4 a:hover{color:var(--brand-600)}
.news-card p{font-size:14px;color:var(--c-text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
}
.empty-box{
  min-height:180px;
  border:1px dashed var(--c-line);
  border-radius:var(--r-l);
  background:var(--c-surface-2);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  color:var(--c-text-2);font-size:15px;text-align:center;padding:24px;
}
.empty-box svg{width:32px;height:32px;stroke:var(--c-text-3)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 52px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 8px;
  font-size:16px;font-weight:600;line-height:1.6;
  transition:background-color .18s ease-out,color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--c-surface-2);color:var(--brand-600)}
.faq-item summary::after{
  content:"";
  flex:0 0 auto;
  width:16px;height:16px;
  background:
    linear-gradient(var(--brand-600),var(--brand-600)) center/16px 2px no-repeat,
    linear-gradient(var(--brand-600),var(--brand-600)) center/2px 16px no-repeat;
  transition:transform .2s ease-out;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 8px 22px}
.faq-body p{font-size:15px;color:var(--c-text-2);line-height:1.85}
.faq-body ul{margin-top:10px;display:flex;flex-direction:column;gap:8px}
.faq-body li{
  position:relative;padding-left:18px;
  font-size:14.5px;color:var(--c-text-2);line-height:1.8;
}
.faq-body li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:2px;background:var(--brand-600);
}

/* ---------- CTA / 表单 ---------- */
.cta-wrap{
  background:linear-gradient(180deg,#FFFFFF 0%,#F3F6FD 100%);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  padding:88px 0;
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.35fr);gap:56px;align-items:start}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:14px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--c-text-2);line-height:1.75}
.cta-points svg{width:20px;height:20px;stroke:var(--ok-500);flex:0 0 auto;margin-top:5px}
.form-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  padding:30px 32px 32px;
}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-card .hint{font-size:14px;color:var(--c-text-3);margin-bottom:22px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-text-2);margin-bottom:8px}
.field input[type="text"],
.field input[type="tel"],
.field textarea,
.field select{
  width:100%;
  height:46px;
  padding:0 14px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-s);
  font-size:15px;
  color:var(--c-text);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-text-3) 50%),linear-gradient(135deg,var(--c-text-3) 50%,transparent 50%);background-position:calc(100% - 18px) 20px,calc(100% - 13px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(42,84,214,.15);
}
.privacy-row{display:flex;gap:10px;align-items:flex-start;margin:6px 0 20px;font-size:14px;color:var(--c-text-3);line-height:1.7}
.privacy-row input{width:18px;height:18px;margin-top:4px;flex:0 0 auto;accent-color:var(--brand-600)}
.form-tip{margin-top:14px;font-size:14px;color:var(--c-text-3);min-height:20px}
.form-tip.is-ok{color:var(--ok-500);font-weight:600}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--brand-600)}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:30em}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:#fff}
.footer-note{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66)}
.footer-note strong{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:52px;
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 弹层 ---------- */
.reveal-overlay{background:rgba(16,38,94,.45)}
.reveal{
  border:none;border-radius:var(--r-l);
  box-shadow:0 30px 70px rgba(16,38,94,.32);
  padding:0;
  max-width:560px;
  overflow:hidden;
}
.reveal .modal-top{height:4px;background:var(--brand-600)}
.reveal .modal-inner{padding:28px 30px 30px}
.reveal h3{font-size:20px;margin-bottom:8px}
.reveal .modal-desc{font-size:14px;color:var(--c-text-2);line-height:1.8;margin-bottom:20px}
.close-button{
  width:36px;height:36px;border-radius:50%;
  background:var(--c-surface-2);border:1px solid var(--c-line);
  color:var(--c-text-2);font-size:18px;line-height:1;
  top:14px;right:14px;display:flex;align-items:center;justify-content:center;
}
.close-button:hover{background:var(--brand-100);color:var(--brand-600)}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:var(--c-surface);
  border-top:1px solid var(--c-line);
  height:60px;
  padding-bottom:env(safe-area-inset-bottom);
  display:none;
}
.mobile-tab ul{display:flex;height:60px}
.mobile-tab li{flex:1 1 0}
.mobile-tab a{
  height:100%;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--c-text-3);
}
.mobile-tab a svg{width:22px;height:22px;stroke:currentColor;fill:none}
.mobile-tab a.active{color:var(--brand-600)}
.mobile-tab a.active svg{stroke:var(--brand-600)}

/* ---------- 响应式 ---------- */
@media (max-width:1023.98px){
  :root{--nav-h:56px}
  .hero{padding:48px 0 64px}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .hero-visual{order:-1;padding-bottom:36px}
  .hero-mini{width:38%;right:0}
  section.block{padding:72px 0}
  .cta-wrap{padding:72px 0}
  .news-grid{grid-template-columns:minmax(0,1fr)}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 0}
  .stat:nth-child(3){border-left:none;padding-left:0}
  .partner-row{grid-template-columns:repeat(3,minmax(0,1fr))}
  .mobile-tab{display:block}
  body{padding-bottom:76px}
}
@media (max-width:767.98px){
  .pain-row{grid-template-columns:44px minmax(0,1fr);gap:12px 16px}
  .pain-a{grid-column:2}
  .pain-num{width:34px;height:34px;font-size:13px}
  .faq-grid{grid-template-columns:minmax(0,1fr)}
  .form-card{padding:24px 20px 26px}
  .card-body{padding:20px 20px 22px}
  .news-lead .body{padding:20px}
}
@media (max-width:519.98px){
  .grid-container,.container{padding-left:16px;padding-right:16px}
  section.block{padding:56px 0}
  .cta-wrap{padding:56px 0}
  .brand-text{font-size:16px}
  .hero-cta .btn{width:100%}
  .hero-mini{width:44%}
  .partner-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{padding:8px 18px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;gap:8px}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .card:hover,.mini-card:hover,.news-lead:hover,.news-card:hover{transform:none}
  .card:hover .card-cover img,.news-lead:hover .thumb img{transform:none}
}

/* roulang page: article */
:root{
  --brand-600:#2A54D6;
  --brand-700:#1D3F9E;
  --brand-900:#10265E;
  --brand-100:#E6EDFF;
  --brand-line:rgba(42,84,214,.14);
  --brand-line-strong:rgba(42,84,214,.28);
  --accent-500:#F97316;
  --ok-500:#0FA97F;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#FAFBFE;
  --c-line:#E4E8F0;
  --c-text:#12172B;
  --c-text-2:#5B6478;
  --c-text-3:#8A93A6;
  --r-s:8px;--r-m:12px;--r-l:18px;--r-pill:999px;
  --sh-1:0 2px 4px rgba(16,38,94,.04),0 12px 28px rgba(16,38,94,.07);
  --sh-2:0 4px 8px rgba(16,38,94,.06),0 20px 40px rgba(16,38,94,.12);
  --sp:88px;
  --font:'PingFang SC','HarmonyOS Sans 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%}
body{
  margin:0;padding-bottom:76px;font-family:var(--font);font-size:16px;line-height:1.8;
  color:var(--c-text);background:var(--c-bg);-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:0;list-style:none}
img{max-width:100%;height:auto;display:block;filter:saturate(.94)}
a{color:inherit;text-decoration:none;transition:color 180ms ease-out}
button{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px;
}
.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.grid-x>.cell{flex:0 0 100%;max-width:100%;padding-left:12px;padding-right:12px}
@media (min-width:640px){
  .medium-6{flex:0 0 50%;max-width:50%}
}
@media (min-width:1024px){
  .large-3{flex:0 0 25%;max-width:25%}
  .large-4{flex:0 0 33.3333%;max-width:33.3333%}
  .large-5{flex:0 0 41.6667%;max-width:41.6667%}
  .large-6{flex:0 0 50%;max-width:50%}
  .large-7{flex:0 0 58.3333%;max-width:58.3333%}
  .large-8{flex:0 0 66.6667%;max-width:66.6667%}
  .large-9{flex:0 0 75%;max-width:75%}
  .hide-for-large{display:none!important}
}
@media (max-width:1023px){
  .show-for-large{display:none!important}
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);transition:box-shadow 200ms ease-out;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,38,94,.08)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--brand-600);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--brand-900);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{
  position:relative;font-size:15px;font-weight:600;color:var(--c-text-2);padding:6px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:-2px;width:20px;height:2px;border-radius:2px;
  background:var(--brand-600);transform:translateX(-50%) scaleX(0);transition:transform 180ms ease-out;
}
.main-nav a:hover{color:var(--brand-600)}
.main-nav a:hover::after,.main-nav a.active::after{transform:translateX(-50%) scaleX(1)}
.main-nav a.active{color:var(--brand-600)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-icon-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--brand-line);
  background:var(--brand-100);display:flex;align-items:center;justify-content:center;cursor:pointer;
}
.nav-icon-btn svg{width:22px;height:22px;stroke:var(--brand-600)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:10px;font-size:15px;font-weight:600;padding:12px 22px;
  border:1px solid transparent;cursor:pointer;transition:all 180ms ease-out;min-height:44px;
  line-height:1.4;
}
.btn svg{width:18px;height:18px;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 6px 16px rgba(42,84,214,.22)}
.btn-primary svg{stroke:#fff}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:0 10px 24px rgba(42,84,214,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(42,84,214,.2)}
.btn-secondary{background:#fff;color:var(--brand-600);border-color:var(--brand-line-strong)}
.btn-secondary svg{stroke:var(--brand-600)}
.btn-secondary:hover{background:var(--brand-100)}
.btn-accent{background:var(--accent-500);color:#fff}
.btn-accent:hover{background:#e2650c;transform:translateY(-1px)}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;font-size:15px;
}
.btn-link svg{width:16px;height:16px;stroke:var(--brand-600);transition:transform 180ms ease-out}
.btn-link:hover svg{transform:translateX(3px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-brand{background:var(--brand-100);color:var(--brand-700)}
.badge-outline{border:1px solid var(--c-line);color:var(--c-text-2);background:var(--c-surface-2)}

/* ---------- article head ---------- */
.art-head{
  background:linear-gradient(180deg,#FFFFFF 0%,var(--c-surface-2) 100%);
  border-bottom:1px solid var(--c-line);padding:40px 0 36px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px}
.breadcrumb a{color:var(--c-text-3)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#C3CAD8}
.breadcrumb .current{
  color:var(--c-text-2);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.art-head h1{
  font-size:clamp(26px,3.6vw,38px);line-height:1.28;font-weight:700;letter-spacing:-.01em;
  color:var(--c-text);margin:14px 0 18px;max-width:860px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.art-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 22px;font-size:13px;color:var(--c-text-3);
  padding-top:18px;border-top:1px solid var(--c-line);
}
.art-meta .item{display:inline-flex;align-items:center;gap:7px}
.art-meta svg{width:16px;height:16px;stroke:var(--c-text-3);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.art-meta .share{margin-left:auto;display:inline-flex;align-items:center;gap:8px;color:var(--brand-600);font-weight:600}

/* ---------- layout ---------- */
.art-main{padding:var(--sp) 0}
.article-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);padding:34px 34px 38px;font-size:17px;line-height:1.9;color:#1A2036;
  word-break:break-word;overflow-wrap:break-word;
}
.article-body>*+*{margin-top:18px}
.article-body p{max-width:760px}
.article-body>p:first-of-type{font-size:18px;color:#232B45}
.article-body h2{
  position:relative;font-size:clamp(20px,2.4vw,25px);line-height:1.4;font-weight:700;
  color:var(--c-text);margin-top:40px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand-600);
}
.article-body h3{font-size:20px;font-weight:600;color:var(--c-text);margin-top:28px}
.article-body ul,.article-body ol{padding-left:0}
.article-body ul li{position:relative;padding-left:20px;margin-top:10px;color:var(--c-text-2)}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--brand-600);
}
.article-body ol{counter-reset:olc}
.article-body ol li{position:relative;padding-left:26px;margin-top:10px;color:var(--c-text-2);counter-increment:olc}
.article-body ol li::before{
  content:counter(olc);position:absolute;left:0;top:.32em;width:18px;height:18px;border-radius:50%;
  background:var(--brand-100);color:var(--brand-700);font-size:11px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;background:var(--c-surface-2);border-left:3px solid var(--brand-600);
  border-radius:0 var(--r-m) var(--r-m) 0;color:var(--c-text-2);
}
.article-body img{border-radius:var(--r-m);margin:24px auto}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:4px}
.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:10px 14px;text-align:left}
.article-body th{background:var(--brand-100);color:var(--brand-900);font-weight:600}
.article-body tbody tr:nth-child(even){background:var(--c-surface-2)}
.article-body pre{
  background:#F2F4F9;border:1px solid var(--c-line);border-radius:var(--r-s);
  padding:16px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body code{background:#F2F4F9;border-radius:4px;padding:2px 6px;font-size:14px}
.article-body pre code{background:none;padding:0}
.article-body .wp-block-image figcaption,.article-body figcaption{
  text-align:center;font-size:13px;color:var(--c-text-3);margin-top:-12px;margin-bottom:18px;
}
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:32px 16px;background:var(--c-surface-2);
  border:1px dashed var(--c-line);border-radius:var(--r-m);
}
.empty-state svg{width:40px;height:40px;stroke:var(--c-text-3);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.empty-state p{font-size:15px;color:var(--c-text-2)}

/* ---------- sidebar ---------- */
.side-sticky{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);padding:22px;
}
.side-card h3{font-size:15px;font-weight:700;color:var(--brand-900);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 svg{width:18px;height:18px;stroke:var(--brand-600);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.toc{display:flex;flex-direction:column}
.toc a{
  position:relative;font-size:14px;color:var(--c-text-2);padding:9px 0 9px 14px;border-bottom:1px solid var(--c-line);
}
.toc a:last-child{border-bottom:none}
.toc a::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;border-radius:2px;background:transparent;
  transition:background 180ms ease-out;
}
.toc a:hover{color:var(--brand-600)}
.toc a:hover::before{background:var(--brand-600)}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-list a{display:flex;gap:12px;align-items:flex-start}
.side-list img{
  width:64px;height:48px;object-fit:cover;border-radius:var(--r-s);flex:0 0 auto;background:#EDF0F7;
}
.side-list .t{font-size:14px;font-weight:600;color:var(--c-text);line-height:1.5}
.side-list .t small{display:block;font-weight:400;font-size:12px;color:var(--c-text-3);margin-top:4px}
.side-list a:hover .t{color:var(--brand-600)}
.side-cta{
  background:var(--c-surface-2);border:1px solid var(--brand-line);border-radius:var(--r-l);
  padding:22px;text-align:left;
}
.side-cta h3{font-size:16px;font-weight:700;color:var(--brand-900);margin-bottom:8px}
.side-cta p{font-size:14px;color:var(--c-text-2);margin-bottom:16px}

/* ---------- tail ---------- */
.art-tail{margin-top:28px;display:flex;flex-direction:column;gap:26px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag-row .label{font-size:13px;color:var(--c-text-3)}
.tag{
  display:inline-flex;align-items:center;padding:5px 14px;border-radius:var(--r-pill);
  background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:600;
}
.tag:hover{background:#D8E3FF}
.nav-post{display:flex;gap:16px}
.nav-post a{
  flex:1 1 0;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);
  padding:18px 20px;box-shadow:var(--sh-1);transition:all 180ms ease-out;min-height:110px;
  display:flex;flex-direction:column;gap:6px;
}
.nav-post a:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line)}
.nav-post small{font-size:12px;color:var(--c-text-3)}
.nav-post strong{font-size:15px;font-weight:600;color:var(--c-text);line-height:1.5}
.nav-post a:hover strong{color:var(--brand-600)}
.related-block{margin-top:12px}
.related-block h2{font-size:20px;font-weight:700;color:var(--c-text);margin-bottom:18px}
.card-grid{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.card-grid>.cell{padding:12px;flex:0 0 100%;max-width:100%}
@media (min-width:640px){.card-grid>.cell{flex:0 0 50%;max-width:50%}}
@media (min-width:1024px){.card-grid>.cell{flex:0 0 33.3333%;max-width:33.3333%}}
.mini-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:all 180ms ease-out;
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line)}
.mini-card .thumb{aspect-ratio:16/9;background:#EDF0F7;overflow:hidden}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease-out}
.mini-card:hover .thumb img{transform:scale(1.03)}
.mini-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.mini-card .body h3{font-size:17px;font-weight:600;line-height:1.45;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-card:hover .body h3{color:var(--brand-600)}
.mini-card .body p{font-size:14px;color:var(--c-text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-3)}

/* ---------- cta ---------- */
.cta-band{
  background:var(--brand-900);border-radius:var(--r-l);padding:44px 40px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;gap:26px;justify-content:space-between;
  margin-top:var(--sp);
}
.cta-band h2{font-size:clamp(20px,2.6vw,27px);font-weight:700;line-height:1.4;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;max-width:640px}
.cta-band .actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.32)}
.cta-band .btn-secondary:hover{background:rgba(255,255,255,.1)}

/* ---------- form ---------- */
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-text);margin-bottom:8px}
.field input,.field textarea{
  width:100%;height:46px;border:1px solid var(--c-line);border-radius:var(--r-s);
  background:#fff;padding:0 14px;font-size:15px;color:var(--c-text);font-family:inherit;
  transition:border-color 180ms ease-out,box-shadow 180ms ease-out;
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(42,84,214,.15);
}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-text-3);line-height:1.7;margin:6px 0 18px}
.consent input{width:18px;height:18px;margin-top:3px;flex:0 0 auto;accent-color:var(--brand-600)}
.form-tip{font-size:14px;color:var(--ok-500);margin-top:12px;display:none}
.form-tip.show{display:block}

/* ---------- modal ---------- */
.reveal-overlay{background:rgba(16,38,94,.45)}
.reveal{
  border:none;border-radius:var(--r-l);box-shadow:0 30px 70px rgba(16,38,94,.28);
  max-width:560px;border-top:4px solid var(--brand-600);padding:0;
}
.reveal .modal-inner{padding:28px 28px 26px}
.reveal h3{font-size:20px;font-weight:700;color:var(--brand-900);margin-bottom:8px}
.reveal .sub{font-size:14px;color:var(--c-text-2);margin-bottom:20px}
.close-button{
  width:36px;height:36px;border-radius:50%;background:var(--c-surface-2);color:var(--c-text-2);
  border:1px solid var(--c-line);top:14px;right:14px;line-height:1;
}
.close-button:hover{background:var(--brand-100);color:var(--brand-700)}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#fff;margin-top:var(--sp);padding:66px 0 0}
.footer-grid{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.footer-grid>div{padding:12px;flex:0 0 100%;max-width:100%}
@media (min-width:640px){.footer-grid>div{flex:0 0 50%;max-width:50%}}
@media (min-width:1024px){.footer-grid>div{flex:0 0 25%;max-width:25%}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;margin-bottom:14px}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:320px}
.site-footer h4{font-size:15px;font-weight:700;margin-bottom:16px;color:#fff}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:#fff}
.footer-note{font-size:13px;color:rgba(255,255,255,.6)}
.footer-note strong{color:rgba(255,255,255,.86);font-weight:600}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- mobile tabbar ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;
  border-top:1px solid var(--c-line);display:flex;height:60px;
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar .tab-item{
  flex:1 1 0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;font-size:11px;color:var(--c-text-3);min-height:44px;
}
.mobile-tabbar .tab-item svg{
  width:22px;height:22px;stroke:var(--c-text-3);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
  fill:none;
}
.mobile-tabbar .tab-item.active{color:var(--brand-600)}
.mobile-tabbar .tab-item.active svg{stroke:var(--brand-600);fill:rgba(42,84,214,.14)}

/* ---------- responsive spacing ---------- */
@media (max-width:1023px){
  :root{--sp:72px}
  .side-sticky{position:static;margin-top:26px}
  .article-body{padding:26px 22px 30px}
  .cta-band{padding:34px 26px}
}
@media (max-width:639px){
  :root{--sp:56px}
  .grid-container{padding-left:16px;padding-right:16px}
  .nav-inner{height:56px}
  .brand-text{font-size:16px}
  .art-head{padding:26px 0 24px}
  .article-body{font-size:16px;line-height:1.85;border-radius:var(--r-m)}
  .article-body>p:first-of-type{font-size:16.5px}
  .nav-post{flex-direction:column}
  .cta-band{border-radius:var(--r-m)}
  .footer-bottom{flex-direction:column}
}
@media (min-width:1280px){
  .grid-container{max-width:1200px;padding-left:32px;padding-right:32px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
  .mini-card:hover,.nav-post a:hover,.btn-primary:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --brand-600:#2A54D6;
  --brand-700:#1D3F9E;
  --brand-900:#10265E;
  --brand-100:#E6EDFF;
  --brand-line:rgba(42,84,214,.14);
  --accent-500:#F97316;
  --ok-500:#0FA97F;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#FAFBFE;
  --c-line:#E4E8F0;
  --c-text:#12172B;
  --c-text-2:#5B6478;
  --c-text-3:#8A93A6;
  --r-s:8px;
  --r-m:12px;
  --r-l:18px;
  --r-pill:999px;
  --sh-1:0 2px 4px rgba(16,38,94,.04),0 12px 28px rgba(16,38,94,.07);
  --sh-2:0 4px 8px rgba(16,38,94,.06),0 20px 40px rgba(16,38,94,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
}
img{max-width:100%;display:block;filter:saturate(.94);}
a{color:var(--brand-600);text-decoration:none;}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;}

.grid-container{
  max-width:1200px;
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
@media (max-width:639px){
  .grid-container{padding-left:16px;padding-right:16px;}
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow 200ms var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,38,94,.08);}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:68px;
  max-width:1200px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-text);flex:0 0 auto;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:28px;height:28px;border-radius:8px;background:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:8px;}
.main-nav a{
  position:relative;
  display:block;
  padding:8px 12px;
  font-size:15px;
  font-weight:600;
  color:var(--c-text-2);
  border-radius:var(--r-s);
  transition:color 180ms var(--ease),background-color 180ms var(--ease);
}
.main-nav a:hover{color:var(--brand-600);background:var(--c-surface-2);}
.main-nav a.active{color:var(--brand-600);}
.main-nav a.active::after{
  content:"";
  position:absolute;left:50%;bottom:0;
  width:20px;height:2px;border-radius:2px;
  background:var(--brand-600);
  transform:translateX(-50%);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-icon-btn{
  width:40px;height:40px;border-radius:var(--r-s);
  border:1px solid var(--brand-line);
  background:var(--c-surface);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;
}
.nav-icon-btn svg{width:22px;height:22px;stroke:var(--brand-600);}
.nav-icon-btn:hover{background:var(--brand-100);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;
  border-radius:10px;
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease),transform 180ms var(--ease);
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-primary{background:var(--brand-600);color:#fff;}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(42,84,214,.24);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:var(--c-surface);color:var(--brand-600);border-color:rgba(42,84,214,.28);}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700);}
.btn-accent{background:var(--accent-500);color:#fff;}
.btn-accent:hover{background:#e2650d;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(249,115,22,.26);}
.btn-accent:active{transform:translateY(0);box-shadow:none;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-600);font-size:15px;font-weight:600;padding:4px 0;
}
.btn-text svg{width:16px;height:16px;stroke:currentColor;transition:transform 180ms var(--ease);}
.btn-text:hover svg{transform:translateX(3px);}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;
  border-radius:var(--r-pill);
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-ok{background:rgba(15,169,127,.12);color:#0b7a5c;}

/* ============ 页头 ============ */
.page-hero{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  padding:40px 0 48px;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:20px;}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--brand-600);}
.crumb span.sep{color:#c8ceda;}
.page-hero h1{
  font-size:clamp(28px,4.2vw,42px);
  line-height:1.22;
  letter-spacing:-.01em;
  margin-bottom:16px;
}
.page-hero .lead{
  font-size:16px;
  color:var(--c-text-2);
  line-height:1.8;
  max-width:640px;
}
.hero-flex{display:flex;align-items:flex-end;gap:40px;}
.hero-flex .hero-copy{flex:1 1 56%;min-width:0;}
.hero-media{
  flex:1 1 44%;
  min-width:0;
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  aspect-ratio:16/9;
  background:linear-gradient(135deg,#eef2fb,#dfe6f8);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2);}
.hero-points svg{width:20px;height:20px;stroke:var(--brand-600);flex:0 0 auto;}

/* ============ 主体布局 ============ */
.main-wrap{padding:64px 0 88px;}
.layout{display:flex;gap:40px;align-items:flex-start;}
.toc-col{flex:0 0 25%;max-width:270px;}
.step-col{flex:1 1 auto;min-width:0;max-width:820px;}
.toc-card{
  position:sticky;
  top:88px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  padding:22px;
}
.toc-card h2{
  font-size:14px;font-weight:700;color:var(--c-text-3);
  letter-spacing:.04em;margin-bottom:14px;
}
.toc-list li+li{margin-top:2px;}
.toc-list a{
  display:block;
  padding:9px 12px;
  border-radius:var(--r-s);
  border-left:2px solid transparent;
  font-size:14px;font-weight:600;
  color:var(--c-text-2);
  transition:all 180ms var(--ease);
}
.toc-list a:hover{background:var(--c-surface-2);color:var(--brand-600);}
.toc-list a.active{color:var(--brand-600);border-left-color:var(--brand-600);background:var(--brand-100);}
.toc-help{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--c-line);
}
.toc-help p{font-size:13px;color:var(--c-text-3);line-height:1.7;margin-bottom:12px;}

/* ============ 步骤时间轴 ============ */
.section-head{margin-bottom:32px;}
.section-head h2{
  font-size:clamp(22px,3vw,32px);
  line-height:1.3;
  letter-spacing:-.01em;
}
.section-head p{margin-top:12px;color:var(--c-text-2);font-size:15px;max-width:640px;}
.steps{position:relative;}
.step-item{
  position:relative;
  display:grid;
  grid-template-columns:76px 1fr;
  gap:24px;
  padding-bottom:32px;
}
.step-item:last-child{padding-bottom:0;}
.step-rail{position:relative;display:flex;justify-content:center;}
.step-rail::after{
  content:"";
  position:absolute;
  top:52px;bottom:-32px;left:50%;
  width:1px;background:var(--c-line);
  transform:translateX(-50%);
}
.step-item:last-child .step-rail::after{display:none;}
.step-num{
  position:relative;z-index:1;
  width:56px;height:56px;border-radius:50%;
  background:var(--c-surface);
  border:1px solid var(--brand-line);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;font-weight:700;color:var(--brand-600);
  font-variant-numeric:tabular-nums;
  flex:0 0 auto;
  box-shadow:0 2px 6px rgba(16,38,94,.05);
}
.step-body{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  padding:24px 26px;
  transition:box-shadow 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease);
}
.step-body:hover{box-shadow:var(--sh-2);border-color:var(--brand-line);transform:translateY(-3px);}
.step-body h3{font-size:20px;line-height:1.4;margin-bottom:10px;}
.step-body p{font-size:15px;line-height:1.8;color:var(--c-text-2);}
.step-body p+p{margin-top:12px;}
.step-note{
  display:flex;gap:10px;
  margin-top:16px;padding:14px 16px;
  background:var(--c-surface-2);
  border-left:3px solid var(--brand-600);
  border-radius:0 var(--r-s) var(--r-s) 0;
  font-size:14px;color:var(--c-text-2);line-height:1.75;
}
.step-note svg{width:20px;height:20px;stroke:var(--brand-600);flex:0 0 auto;margin-top:3px;}
.step-media{
  margin-top:18px;
  border-radius:var(--r-m);
  overflow:hidden;
  border:1px solid var(--c-line);
  aspect-ratio:16/10;
  background:linear-gradient(135deg,#eef2fb,#e2e8f7);
}
.step-media img{width:100%;height:100%;object-fit:cover;transition:transform 220ms var(--ease);}
.step-body:hover .step-media img{transform:scale(1.03);}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.step-tags span{
  padding:3px 10px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  font-size:12px;color:var(--c-text-3);
}

/* ============ 确认点行 ============ */
.check-block{margin-top:56px;}
.check-list{border-top:1px solid var(--c-line);}
.check-row{
  display:flex;align-items:flex-start;gap:18px;
  padding:20px 16px;
  border-bottom:1px solid var(--c-line);
  border-radius:var(--r-s);
  transition:background-color 180ms var(--ease);
}
.check-row:hover{background:var(--c-surface-2);}
.check-idx{
  flex:0 0 auto;
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--brand-line);
  color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.check-row h3{font-size:16px;font-weight:600;line-height:1.45;margin-bottom:4px;}
.check-row p{font-size:14px;color:var(--c-text-2);line-height:1.75;}

/* ============ 设备对照 ============ */
.device-block{margin-top:56px;}
.device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.device-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  padding:22px;
  transition:box-shadow 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease);
}
.device-card:hover{box-shadow:var(--sh-2);border-color:var(--brand-line);transform:translateY(-3px);}
.device-card svg{width:24px;height:24px;stroke:var(--brand-600);margin-bottom:14px;}
.device-card h3{font-size:17px;font-weight:600;line-height:1.45;margin-bottom:8px;}
.device-card p{font-size:14px;color:var(--c-text-2);line-height:1.75;}

/* ============ FAQ ============ */
.faq-block{margin-top:64px;}
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 16px;
  cursor:pointer;
  list-style:none;
  border-radius:var(--r-s);
  transition:background-color 180ms var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:var(--c-surface-2);}
.faq-q{font-size:16px;font-weight:600;color:var(--c-text);line-height:1.5;}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  transition:transform 180ms var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-600);border-radius:2px;
}
.faq-icon::before{left:2px;right:2px;top:10px;height:2px;}
.faq-icon::after{top:2px;bottom:2px;left:10px;width:2px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-a{padding:0 16px 20px;font-size:15px;line-height:1.8;color:var(--c-text-2);max-width:700px;}

/* ============ CTA 表单 ============ */
.cta-block{margin-top:72px;}
.cta-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  padding:36px;
  display:flex;gap:40px;align-items:flex-start;
}
.cta-copy{flex:0 0 40%;min-width:0;}
.cta-copy h2{font-size:clamp(22px,3vw,30px);line-height:1.3;margin-bottom:14px;}
.cta-copy p{font-size:15px;color:var(--c-text-2);line-height:1.8;}
.cta-copy ul{margin-top:20px;}
.cta-copy li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);line-height:1.75;}
.cta-copy li+li{margin-top:10px;}
.cta-copy li svg{width:20px;height:20px;stroke:var(--ok-500);flex:0 0 auto;margin-top:3px;}
.form-col{flex:1 1 auto;min-width:0;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-text);margin-bottom:8px;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;
  padding:0 14px;
  height:46px;
  border:1px solid var(--c-line);
  border-radius:var(--r-s);
  background:var(--c-surface);
  font-size:15px;
  color:var(--c-text);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
  appearance:none;
}
.field textarea{height:auto;padding:12px 14px;min-height:110px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(42,84,214,.15);
}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--c-text-3) 50%),linear-gradient(135deg,var(--c-text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.privacy-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px;}
.privacy-row input{width:18px;height:18px;flex:0 0 auto;margin-top:3px;accent-color:var(--brand-600);}
.privacy-row label{font-size:14px;line-height:1.65;color:var(--c-text-3);margin:0;}
.form-tip{font-size:13px;color:var(--c-text-3);margin-top:12px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  padding:56px 0 0;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:32px;padding-bottom:40px;}
.site-footer h4{
  color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  color:#fff;font-size:17px;font-weight:700;margin-bottom:14px;
}
.footer-brand .brand-mark{background:var(--brand-600);}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:340px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;transition:color 180ms var(--ease);}
.footer-links a:hover{color:#fff;}
.footer-note{font-size:13px;line-height:1.85;color:rgba(255,255,255,.6);max-width:320px;}
.footer-note strong{color:rgba(255,255,255,.86);font-weight:600;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 28px;
  font-size:13px;
  color:rgba(255,255,255,.6);
  font-variant-numeric:tabular-nums;
}

/* ============ 移动底部 Tab ============ */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:#fff;
  border-top:1px solid var(--c-line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;height:60px;
  font-size:11px;color:var(--c-text-3);
  transition:color 180ms var(--ease);
}
.mobile-tabbar a svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.mobile-tabbar a.active{color:var(--brand-600);}
.mobile-tabbar a.active svg{fill:rgba(42,84,214,.12);}
body{padding-bottom:76px;}

/* ============ 弹层 ============ */
.modal-mask{
  position:fixed;inset:0;z-index:90;
  background:rgba(16,38,94,.45);
  display:none;
  align-items:center;justify-content:center;
  padding:24px;
}
.modal-mask.is-open{display:flex;}
.modal-panel{
  position:relative;
  width:100%;max-width:560px;
  background:var(--c-surface);
  border-radius:var(--r-l);
  border-top:4px solid var(--brand-600);
  box-shadow:0 24px 60px rgba(16,38,94,.28);
  padding:32px;
  max-height:88vh;
  overflow-y:auto;
}
.modal-panel h3{font-size:22px;margin-bottom:10px;}
.modal-panel .modal-lead{font-size:14px;color:var(--c-text-2);margin-bottom:22px;line-height:1.75;}
.modal-close{
  position:absolute;top:16px;right:16px;
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  color:var(--c-text-2);
  font-size:18px;line-height:1;
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:all 180ms var(--ease);
}
.modal-close:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-line);}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .hero-flex{flex-direction:column;align-items:stretch;gap:28px;}
  .hero-media{aspect-ratio:16/9;}
  .layout{flex-direction:column;gap:28px;}
  .toc-col{flex:0 0 auto;max-width:100%;width:100%;}
  .toc-card{position:static;}
  .toc-list{display:flex;flex-wrap:wrap;gap:6px;}
  .toc-list li+li{margin-top:0;}
  .toc-list a{padding:8px 14px;border-left:none;border:1px solid var(--c-line);border-radius:var(--r-pill);}
  .toc-list a.active{border-color:var(--brand-600);}
  .toc-help{border-top:1px solid var(--c-line);}
  .step-col{max-width:100%;width:100%;}
  .device-grid{grid-template-columns:1fr;}
  .cta-panel{flex-direction:column;gap:28px;padding:28px;}
  .cta-copy{flex:0 0 auto;width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .main-wrap{padding:48px 0 72px;}
  .page-hero{padding:32px 0 40px;}
}
@media (min-width:1024px){
  .mobile-tabbar{display:none;}
  body{padding-bottom:0;}
}
@media (min-width:1280px){
  .grid-container{padding-left:24px;padding-right:24px;}
}
@media (max-width:639px){
  .step-item{grid-template-columns:1fr;gap:14px;padding-bottom:28px;}
  .step-rail{justify-content:flex-start;}
  .step-rail::after{display:none;}
  .step-num{width:44px;height:44px;font-size:18px;}
  .step-body{padding:20px 18px;}
  .step-body h3{font-size:18px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .main-wrap{padding:40px 0 64px;}
  .faq-q{font-size:15px;}
  .modal-mask{padding:0;align-items:flex-end;}
  .modal-panel{max-width:100%;border-radius:20px 20px 0 0;padding:26px 20px 32px;max-height:88vh;}
  .cta-panel{padding:22px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .step-body:hover{transform:none;}
  .device-card:hover{transform:none;}
  .btn:hover{transform:none;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --brand-600:#2A54D6;
  --brand-700:#1D3F9E;
  --brand-900:#10265E;
  --brand-100:#E6EDFF;
  --brand-line:rgba(42,84,214,.14);
  --accent-500:#F97316;
  --ok-500:#0FA97F;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#FAFBFE;
  --c-line:#E4E8F0;
  --c-text:#12172B;
  --c-text-2:#5B6478;
  --c-text-3:#8A93A6;
  --r-s:8px;
  --r-m:12px;
  --r-l:18px;
  --r-pill:999px;
  --shadow-card:0 2px 4px rgba(16,38,94,.04),0 12px 28px rgba(16,38,94,.07);
  --shadow-card-hover:0 4px 8px rgba(16,38,94,.06),0 20px 40px rgba(16,38,94,.12);
  --shadow-soft:0 2px 6px rgba(16,38,94,.05),0 14px 32px rgba(16,38,94,.08);
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;filter:saturate(.94);}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;}
strong{font-weight:600;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 容器 ============ */
.grid-container{
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:16px;
  padding-right:16px;
}
@media (min-width:640px){
  .grid-container{padding-left:24px;padding-right:24px;}
}
@media (min-width:1280px){
  .grid-container{max-width:1200px;padding-left:32px;padding-right:32px;}
}

/* ============ 通用区块 ============ */
.section{padding:56px 0;}
@media (min-width:640px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:88px 0;}}
.section-surface{background:var(--c-surface);}
.section-tint{background:var(--c-bg);}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
}
.sec-title{
  font-size:clamp(22px,3vw,32px);
  line-height:1.3;
  letter-spacing:-.01em;
}
.sec-desc{
  margin-top:12px;
  font-size:15.5px;
  line-height:1.8;
  color:var(--c-text-2);
  max-width:46em;
}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:34px;
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(16,38,94,.08);}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:68px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:28px;
  height:28px;
  border-radius:9px;
  background:var(--brand-600);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 28px;
}
.brand-mark svg{width:18px;height:18px;}
.brand-text{
  font-size:18px;
  font-weight:700;
  color:var(--brand-900);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
}
.main-nav a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 13px;
  border-radius:var(--r-s);
  font-size:15px;
  font-weight:600;
  color:var(--c-text-2);
}
.main-nav a:hover{color:var(--brand-600);background:var(--brand-100);}
.main-nav a.active{color:var(--brand-600);}
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-4px;
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--brand-600);
  transform:translateX(-50%);
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-icon-btn{
  width:42px;
  height:42px;
  border-radius:var(--r-m);
  border:1px solid var(--c-line);
  background:var(--c-surface);
  color:var(--brand-600);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:border-color .18s ease-out,background .18s ease-out;
}
.nav-icon-btn svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.nav-icon-btn:hover{border-color:var(--brand-line);background:var(--brand-100);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:10px;
  border:1px solid transparent;
  padding:12px 22px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.btn-sm{padding:10px 16px;font-size:14px;}
.btn-primary{
  background:var(--brand-600);
  color:#fff;
  box-shadow:0 6px 16px rgba(42,84,214,.22);
}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(42,84,214,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(42,84,214,.22);}
.btn-ghost{
  background:var(--c-surface);
  color:var(--brand-600);
  border-color:rgba(42,84,214,.28);
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);}
.btn-accent{
  background:var(--accent-500);
  color:#fff;
  box-shadow:0 6px 16px rgba(249,115,22,.24);
}
.btn-accent:hover{background:#E2660D;color:#fff;transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);}
.btn:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible{
  outline:2px solid var(--brand-600);
  outline-offset:2px;
}
.link-btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-600);
}
.link-btn svg{
  width:16px;
  height:16px;
  stroke:currentColor;
  fill:none;
  stroke-width:1.8;
  stroke-linecap:round;
  stroke-linejoin:round;
  transition:transform .18s ease-out;
}
.link-btn:hover svg{transform:translateX(3px);}

/* ============ 页头 ============ */
.page-head{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  padding:30px 0 34px;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--c-text-3);
}
.breadcrumb a{color:var(--c-text-3);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:#C6CCDA;}
.breadcrumb .current{color:var(--c-text-2);font-weight:600;}
.page-head h1{
  margin-top:18px;
  font-size:clamp(26px,4vw,40px);
  line-height:1.24;
  letter-spacing:-.01em;
  max-width:22em;
}
.page-lead{
  margin-top:14px;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text-2);
  max-width:44em;
}
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.filter-pill{
  padding:9px 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:var(--c-surface);
  color:var(--c-text-2);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.filter-pill:hover{border-color:rgba(42,84,214,.28);color:var(--brand-600);}
.filter-pill.is-active{
  background:var(--brand-600);
  border-color:var(--brand-600);
  color:#fff;
}

/* ============ 速览 ============ */
.overview-media{
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--shadow-soft);
  background:var(--brand-100);
}
.overview-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.overview-copy{padding-top:4px;}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:15px;
  line-height:1.7;
  color:var(--c-text-2);
}
.check-list .dot{
  flex:0 0 22px;
  width:22px;
  height:22px;
  margin-top:3px;
  border-radius:7px;
  background:var(--brand-100);
  color:var(--brand-600);
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.check-list .dot svg{
  width:14px;height:14px;stroke:currentColor;fill:none;
  stroke-width:2;stroke-linecap:round;stroke-linejoin:round;
}
.check-list strong{color:var(--c-text);font-weight:600;}
@media (max-width:1023px){
  .overview-media{margin-bottom:28px;}
}

/* ============ 入口清单网格 ============ */
.entry-grid{row-gap:24px;}
.entry-cell{display:flex;}
.entry-card{
  display:flex;
  flex-direction:column;
  width:100%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  padding:22px;
  box-shadow:var(--shadow-card);
  transition:box-shadow .18s ease-out,border-color .18s ease-out;
}
.entry-card:hover{
  border-color:var(--brand-line);
  box-shadow:var(--shadow-card-hover);
}
.entry-head{display:flex;gap:14px;align-items:flex-start;}
.entry-logo{
  flex:0 0 56px;
  width:56px;
  height:56px;
  border-radius:12px;
  background:var(--brand-100);
  color:var(--brand-600);
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.entry-logo svg{
  width:24px;height:24px;stroke:currentColor;fill:none;
  stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
}
.entry-name{
  font-size:17px;
  line-height:1.45;
  font-weight:600;
}
.entry-desc{
  margin-top:6px;
  font-size:14px;
  line-height:1.7;
  color:var(--c-text-2);
}
.entry-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:18px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  background:var(--brand-100);
  color:var(--brand-700);
  line-height:1.6;
}
.tag-neutral{
  background:var(--c-surface-2);
  border:1px solid var(--c-line);
  color:var(--c-text-2);
}
.tag-ok{
  background:rgba(15,169,127,.1);
  color:#0B7E5F;
}
.entry-foot{
  margin-top:auto;
  padding-top:18px;
}

/* ============ 分页 / 加载更多 ============ */
.pager-wrap{
  margin-top:38px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:22px;
}
ul.pagination.pager{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:8px;
  margin:0;
  list-style:none;
}
ul.pagination.pager li{margin:0;}
ul.pagination.pager li a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:42px;
  height:42px;
  padding:0 14px;
  border-radius:10px;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  color:var(--c-text-2);
  font-size:14px;
  font-weight:600;
  transition:border-color .18s ease-out,color .18s ease-out,background .18s ease-out;
}
ul.pagination.pager li a:hover{
  border-color:rgba(42,84,214,.28);
  color:var(--brand-600);
  background:var(--brand-100);
}
ul.pagination.pager li.current a{
  background:var(--brand-600);
  border-color:var(--brand-600);
  color:#fff;
}
.load-more-note{
  font-size:13.5px;
  color:var(--c-text-3);
}

/* ============ FAQ ============ */
.faq-shell{max-width:900px;}
.accordion.faq-acc{
  border-top:1px solid var(--c-line);
  background:transparent;
  margin:0;
}
.faq-acc .accordion-item{
  border-bottom:1px solid var(--c-line);
  background:transparent;
}
.faq-acc .accordion-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 6px;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  background:transparent;
  border:0;
  transition:color .18s ease-out,background .18s ease-out;
}
.faq-acc .accordion-title::before{content:none;display:none;}
.faq-acc .accordion-title:hover{color:var(--brand-600);background:var(--c-surface-2);}
.faq-mark{
  flex:0 0 30px;
  width:30px;
  height:30px;
  border-radius:var(--r-pill);
  background:var(--brand-100);
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.faq-mark svg{
  width:16px;height:16px;stroke:var(--brand-600);fill:none;
  stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;
  transition:transform .18s ease-out;
}
.faq-acc .accordion-title[aria-expanded="true"] .faq-mark svg{transform:rotate(45deg);}
.faq-acc .accordion-content{
  padding:0 6px 24px;
  border:0;
  background:transparent;
  color:var(--c-text-2);
  font-size:15px;
  line-height:1.8;
}
.faq-acc .accordion-content p{margin:0;}

/* ============ CTA 与表单 ============ */
.cta-sec{
  background:var(--brand-100);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.cta-copy h2{margin-top:16px;font-size:clamp(22px,3vw,30px);line-height:1.32;}
.cta-copy p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--c-text-2);}
.cta-points{margin-top:22px;display:grid;gap:10px;}
.cta-points li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14.5px;
  color:var(--c-text-2);
  line-height:1.7;
}
.cta-points .dot{
  flex:0 0 20px;
  width:20px;height:20px;margin-top:4px;
  border-radius:6px;
  background:var(--c-surface);
  color:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;
}
.cta-points .dot svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.form-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  padding:26px;
  box-shadow:var(--shadow-soft);
}
@media (min-width:640px){
  .form-card{padding:30px;}
}
.field{margin-bottom:18px;}
.field label{
  display:block;
  margin-bottom:8px;
  font-size:13px;
  font-weight:600;
  color:var(--c-text-2);
}
.field input,
.field select,
.field textarea{
  width:100%;
  height:46px;
  padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:var(--r-s);
  background:var(--c-surface);
  color:var(--c-text);
  font-size:15px;
  font-family:inherit;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{
  height:auto;
  min-height:112px;
  padding:12px 14px;
  line-height:1.7;
  resize:vertical;
}
.field input:focus,
.field select:focus,
.field textarea:focus{
  border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(42,84,214,.15);
  outline:none;
}
.consent{
  display:flex;
  gap:10px;
  align-items:flex-start;
  margin:20px 0 20px;
  font-size:14px;
  line-height:1.65;
  color:var(--c-text-3);
}
.consent input{
  flex:0 0 18px;
  width:18px;
  height:18px;
  margin:2px 0 0;
  accent-color:var(--brand-600);
}
.form-submit{width:100%;}
@media (min-width:640px){
  .form-submit{width:auto;min-width:210px;}
}
.form-note{
  margin-top:14px;
  font-size:13px;
  color:var(--c-text-3);
  line-height:1.7;
}

/* ============ 弹层 ============ */
.reveal.lead-reveal{
  border:0;
  border-radius:var(--r-l);
  padding:0;
  max-width:560px;
  overflow:hidden;
  box-shadow:0 24px 60px rgba(16,38,94,.28);
}
.reveal.lead-reveal .reveal-inner{
  padding:28px;
  border-top:4px solid var(--brand-600);
}
.reveal.lead-reveal h3{font-size:21px;line-height:1.4;}
.reveal.lead-reveal p.reveal-desc{
  margin-top:10px;
  font-size:14.5px;
  line-height:1.75;
  color:var(--c-text-2);
}
.reveal.lead-reveal .close-button{
  position:absolute;
  top:12px;
  right:12px;
  width:36px;
  height:36px;
  border-radius:var(--r-pill);
  background:var(--c-surface-2);
  color:var(--c-text-2);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  line-height:1;
}
.reveal.lead-reveal .close-button:hover{background:var(--brand-100);color:var(--brand-600);}
.reveal-overlay{background:rgba(16,38,94,.45);}
@media (max-width:639px){
  .reveal.lead-reveal{
    top:auto !important;
    bottom:0;
    max-height:88vh;
    overflow-y:auto;
    border-radius:20px 20px 0 0;
  }
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  padding:56px 0 22px;
}
.footer-grid{
  display:grid;
  gap:30px;
  grid-template-columns:1fr;
}
@media (min-width:640px){
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}
@media (min-width:1024px){
  .footer-grid{grid-template-columns:repeat(4,1fr);gap:36px;}
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.site-footer p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.72);
}
.site-footer h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-links{display:grid;gap:10px;}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.72);
}
.footer-links a:hover{color:#fff;}
.footer-note{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.6);}
.footer-note strong{color:rgba(255,255,255,.86);font-weight:600;}
.footer-bottom{
  margin-top:38px;
  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:rgba(255,255,255,.6);
}

/* ============ 移动底部 Tab ============ */
.mobile-tabbar{display:none;}
@media (max-width:1023px){
  body{padding-bottom:78px;}
  .mobile-tabbar{
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    z-index:80;
    display:flex;
    background:var(--c-surface);
    border-top:1px solid var(--c-line);
    box-shadow:0 -6px 20px rgba(16,38,94,.07);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-tabbar a{
    flex:1 1 0;
    height:60px;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:3px;
    font-size:11px;
    font-weight:600;
    color:var(--c-text-3);
  }
  .mobile-tabbar a svg{
    width:22px;height:22px;stroke:currentColor;fill:none;
    stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
  }
  .mobile-tabbar a:hover,
  .mobile-tabbar a:active{color:var(--brand-600);}
  .mobile-tabbar a.is-current{color:var(--brand-600);}
  .mobile-tabbar a.is-current svg{fill:rgba(42,84,214,.12);}
}

/* ============ 工具类 ============ */
.mt-0{margin-top:0;}
.text-center{text-align:center;}
@media (max-width:639px){
  .page-head{padding:24px 0 28px;}
  .section-head{margin-bottom:26px;}
  .entry-card{padding:18px;}
  .form-card{padding:20px;}
  .btn{width:100%;}
  .btn-inline{width:auto;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --brand-600:#2A54D6;
  --brand-700:#1D3F9E;
  --brand-900:#10265E;
  --brand-100:#E6EDFF;
  --brand-line:rgba(42,84,214,.14);
  --accent-500:#F97316;
  --ok-500:#0FA97F;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#FAFBFE;
  --c-line:#E4E8F0;
  --c-text:#12172B;
  --c-text-2:#5B6478;
  --c-text-3:#8A93A6;
  --r-s:8px;
  --r-m:12px;
  --r-l:18px;
  --r-pill:999px;
  --sh-1:0 2px 4px rgba(16,38,94,.04), 0 12px 28px rgba(16,38,94,.07);
  --sh-2:0 4px 8px rgba(16,38,94,.06), 0 20px 40px rgba(16,38,94,.12);
  --f-sans:'PingFang SC','HarmonyOS Sans 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(--f-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;filter:saturate(.94);}
a{color:inherit;text-decoration:none;}
button,input,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
h1{font-size:clamp(28px,4.2vw,42px);line-height:1.22;font-weight:700;letter-spacing:-.01em;}
h2{font-size:clamp(22px,3vw,32px);line-height:1.3;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{font-size:16px;line-height:1.8;color:var(--c-text-2);}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px;}

/* ---------- 容器 ---------- */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.section{padding:88px 0;}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-sub{font-size:15px;color:var(--c-text-3);max-width:640px;margin-top:8px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  height:68px;
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,38,94,.08);}
.nav-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--c-text);}
.brand-mark{
  width:28px;height:28px;border-radius:var(--r-s);
  background:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;
  flex:0 0 28px;
}
.brand-mark svg{width:18px;height:18px;}
.brand-text{white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;}
.main-nav a{
  position:relative;
  font-size:15px;font-weight:600;color:var(--c-text-2);
  padding:8px 12px;border-radius:var(--r-s);
  transition:color .18s ease, background .18s ease;
}
.main-nav a:hover{color:var(--brand-600);background:var(--c-surface-2);}
.main-nav a.active{color:var(--brand-600);}
.main-nav a.active::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--brand-600);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-icon-btn{
  width:38px;height:38px;border-radius:var(--r-s);
  border:1px solid var(--brand-line);background:var(--c-surface);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .18s ease;
}
.nav-icon-btn:hover{background:var(--brand-100);}
.nav-icon-btn svg{width:22px;height:22px;stroke:var(--brand-600);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:10px;border:1px solid transparent;
  padding:12px 22px;font-size:15px;font-weight:600;
  cursor:pointer;transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  min-height:44px;text-align:center;
}
.btn-sm{padding:9px 16px;font-size:14px;min-height:38px;}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 6px 16px rgba(42,84,214,.22);}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:0 10px 24px rgba(42,84,214,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:var(--c-surface);border-color:rgba(42,84,214,.28);color:var(--brand-600);}
.btn-ghost:hover{background:var(--brand-100);}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:0 6px 16px rgba(249,115,22,.24);}
.btn-accent:hover{background:#E4610A;transform:translateY(-1px);}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand-600);
}
.btn-text svg{width:16px;height:16px;stroke:var(--brand-600);transition:transform .18s ease;}
.btn-text:hover svg{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-block;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--brand-100);color:var(--brand-600);
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-ok{background:rgba(15,169,127,.12);color:var(--ok-500);}
.eyebrow{
  display:inline-block;margin-bottom:14px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-600);
}

/* ---------- 卡片通用 ---------- */
.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.card-media{aspect-ratio:16/10;background:var(--brand-100);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:24px;}
.card-body h3{font-size:17px;line-height:1.45;margin-bottom:10px;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
}
.link-arrow{color:var(--brand-600);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:4px;}
.link-arrow::after{content:"→";transition:transform .18s ease;}
.link-arrow:hover::after{transform:translateX(3px);}

/* ---------- 页头 ---------- */
.cat3-hero{
  background:linear-gradient(180deg,#FFFFFF 0%, var(--c-bg) 100%);
  border-bottom:1px solid var(--c-line);
  padding:44px 0 52px;
}
.breadcrumb ol{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);}
.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:var(--c-line);}
.breadcrumb a{color:var(--c-text-3);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb li[aria-current] {color:var(--c-text-2);}
.cat3-hero-row{margin-top:22px;align-items:flex-start;}
.cat3-hero-lead{font-size:16px;color:var(--c-text-2);max-width:46ch;}
.cat3-hero-meta{
  margin-top:22px;display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border-top:1px solid var(--c-line);
}
.cat3-hero-meta li{padding:14px 16px 0 0;border-right:1px solid var(--c-line);}
.cat3-hero-meta li:last-child{border-right:none;padding-right:0;}
.cat3-hero-meta span{display:block;font-size:12px;color:var(--c-text-3);margin-bottom:4px;}
.cat3-hero-meta strong{font-size:14px;font-weight:600;color:var(--c-text);}

/* ---------- 本期重点 ---------- */
.cat3-focus-grid{margin-bottom:-24px;}
.cat3-feature{height:100%;display:flex;flex-direction:column;}
.cat3-feature .card-media{aspect-ratio:16/9;}
.cat3-feature .card-body{display:flex;flex-direction:column;flex:1;}
.cat3-feature h3{font-size:clamp(20px,2.4vw,24px);line-height:1.38;margin:12px 0 12px;}
.cat3-feature p{font-size:15px;}
.cat3-mini-list{display:flex;flex-direction:column;gap:24px;height:100%;}
.cat3-mini{
  flex:1;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-l);padding:22px;box-shadow:var(--sh-1);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.cat3-mini:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.cat3-mini .mini-icon{
  width:36px;height:36px;border-radius:10px;background:var(--brand-100);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.cat3-mini .mini-icon svg{width:20px;height:20px;stroke:var(--brand-600);}
.cat3-mini h3{font-size:17px;margin-bottom:8px;}
.cat3-mini p{font-size:14px;color:var(--c-text-2);}
.cat3-mini time{display:block;margin-top:12px;font-size:13px;color:var(--c-text-3);}

/* ---------- 更新记录 ---------- */
.cat3-records{margin-top:8px;}
.cat3-record{
  display:grid;grid-template-columns:104px 1fr;gap:28px;
  padding:26px 0;border-bottom:1px solid var(--c-line);
  transition:background .18s ease;
}
.cat3-record:first-child{border-top:1px solid var(--c-line);}
.cat3-record:hover{background:var(--c-surface-2);}
.cat3-date{padding-top:2px;}
.cat3-date strong{display:block;font-size:28px;line-height:1.1;font-weight:700;color:var(--brand-600);}
.cat3-date span{display:block;font-size:13px;color:var(--c-text-3);margin-top:4px;}
.cat3-record h3{font-size:17px;margin-bottom:8px;}
.cat3-record p{font-size:15px;color:var(--c-text-2);max-width:60ch;}
.cat3-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}
.cat3-tag{
  font-size:12px;padding:2px 10px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);color:var(--c-text-3);background:var(--c-surface-2);
}

/* ---------- 长期关注 ---------- */
.cat3-watch{margin-bottom:-24px;}
.cat3-watch .card{padding:26px;height:100%;}
.cat3-watch h3{font-size:18px;margin:16px 0 10px;}
.cat3-watch p{font-size:15px;}
.watch-icon{
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--brand-line);background:var(--brand-100);
  display:inline-flex;align-items:center;justify-content:center;
}
.watch-icon svg{width:22px;height:22px;stroke:var(--brand-600);}

/* ---------- 判断清单 ---------- */
.cat3-check{background:var(--c-surface);border-radius:var(--r-l);border:1px solid var(--c-line);box-shadow:var(--sh-1);padding:32px;}
.cat3-check ol{counter-reset:c3;display:grid;grid-template-columns:1fr 1fr;gap:20px 32px;}
.cat3-check li{
  position:relative;padding-left:44px;font-size:15px;color:var(--c-text-2);
}
.cat3-check li::before{
  counter-increment:c3;content:counter(c3,decimal-leading-zero);
  position:absolute;left:0;top:1px;
  width:28px;height:28px;border-radius:50%;
  border:1px solid var(--brand-line);color:var(--brand-600);
  font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.cat3-check li strong{display:block;color:var(--c-text);font-size:15px;font-weight:600;margin-bottom:4px;}

/* ---------- FAQ ---------- */
.cat3-faq .accordion{background:transparent;border:none;margin:0;}
.cat3-faq .accordion-item{border:none;border-bottom:1px solid var(--c-line);background:transparent;}
.cat3-faq .accordion-title{
  font-size:16px;font-weight:600;color:var(--c-text);
  padding:22px 52px 22px 16px;border:none;background:transparent;
  transition:background .18s ease;
  line-height:1.5;
}
.cat3-faq .accordion-title:hover{background:var(--c-surface-2);color:var(--brand-600);}
.cat3-faq .accordion-title::before{
  content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--brand-600);
  transition:transform .2s ease;
}
.cat3-faq .accordion-item.is-active .accordion-title::before{content:"−";}
.cat3-faq .accordion-content{
  padding:0 52px 22px 16px;border:none;background:transparent;
  font-size:15px;line-height:1.8;color:var(--c-text-2);
}

/* ---------- 轻 CTA 条 ---------- */
.cat3-cta{
  background:var(--brand-100);
  border:1px solid var(--brand-line);
  border-radius:var(--r-l);
  padding:32px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cat3-cta h2{font-size:20px;margin-bottom:8px;}
.cat3-cta p{font-size:15px;max-width:56ch;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#fff;padding:64px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.site-footer p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.8;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .18s ease;}
.footer-links a:hover{color:#fff;}
.footer-note strong{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:48px;padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 弹层 ---------- */
.reveal-overlay{background:rgba(16,38,94,.45);}
.reveal{
  border:none;border-radius:var(--r-l);padding:0;overflow:hidden;
  box-shadow:var(--sh-2);border-top:4px solid var(--brand-600);
  max-width:560px;
}
.reveal .modal-head{padding:26px 28px 0;position:relative;}
.reveal .modal-head h2{font-size:20px;margin-bottom:8px;}
.reveal .modal-head p{font-size:14px;color:var(--c-text-2);}
.reveal .close-button{
  position:absolute;right:18px;top:18px;width:36px;height:36px;border-radius:50%;
  background:var(--c-surface-2);color:var(--c-text-2);font-size:22px;line-height:1;
  display:flex;align-items:center;justify-content:center;border:1px solid var(--c-line);
}
.reveal .close-button:hover{background:var(--brand-100);color:var(--brand-600);}
.reveal .modal-body{padding:22px 28px 28px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-text);margin-bottom:6px;}
.field input,.field textarea{
  width:100%;padding:0 14px;height:46px;border:1px solid var(--c-line);
  border-radius:var(--r-s);background:var(--c-surface);transition:border-color .18s ease, box-shadow .18s ease;
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(42,84,214,.15);}
.privacy{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-text-3);line-height:1.7;margin:6px 0 18px;}
.privacy input{width:18px;height:18px;margin-top:3px;flex:0 0 18px;accent-color:var(--brand-600);}

/* ---------- 底部 Tab ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  height:60px;background:#fff;border-top:1px solid var(--c-line);
  display:flex;align-items:stretch;
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:11px;color:var(--c-text-3);transition:color .18s ease;
}
.mobile-tabbar a svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.mobile-tabbar a.active{color:var(--brand-600);}
.mobile-tabbar a.active svg{fill:rgba(42,84,214,.10);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  body{padding-bottom:76px;}
  .section{padding:72px 0;}
  .section-alt{padding:60px 0;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
  .cat3-mini-list{margin-top:24px;}
  .cat3-check ol{grid-template-columns:1fr;}
}
@media (max-width:767px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .section{padding:56px 0;}
  .section-alt{padding:52px 0;}
  .cat3-hero{padding:30px 0 40px;}
  .cat3-hero-meta{grid-template-columns:1fr;border-top:none;}
  .cat3-hero-meta li{border-right:none;border-top:1px solid var(--c-line);padding:12px 0 0;}
  .cat3-hero-meta li:last-child{padding-bottom:0;}
  .cat3-record{grid-template-columns:64px 1fr;gap:16px;padding:22px 0;}
  .cat3-date strong{font-size:24px;}
  .cat3-check{padding:22px;}
  .cat3-cta{padding:24px;flex-direction:column;align-items:flex-start;}
  .cat3-cta .btn{width:100%;}
  .cat3-faq .accordion-title{padding:18px 44px 18px 8px;font-size:15px;}
  .cat3-faq .accordion-content{padding:0 44px 18px 8px;}
  .site-footer{padding-top:48px;margin-top:56px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .reveal{
    width:100%;max-width:none;left:0;right:0;bottom:0;top:auto;margin:0;
    border-radius:20px 20px 0 0;border-top:4px solid var(--brand-600);
    max-height:88vh;overflow:auto;
  }
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
  .card:hover{transform:none;}
  .card:hover .card-media img{transform:none;}
}

/* roulang page: category4 */
/* ===================== 设计变量 ===================== */
:root{
  --brand-600:#2A54D6;
  --brand-700:#1D3F9E;
  --brand-900:#10265E;
  --brand-100:#E6EDFF;
  --accent-500:#F97316;
  --ok-500:#0FA97F;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#FAFBFE;
  --c-line:#E4E8F0;
  --c-text:#12172B;
  --c-text-2:#5B6478;
  --c-text-3:#8A93A6;
  --line-brand:rgba(42,84,214,.14);
  --r-s:8px;
  --r-m:12px;
  --r-l:18px;
  --r-pill:999px;
  --sh-1:0 2px 4px rgba(16,38,94,.04),0 12px 28px rgba(16,38,94,.07);
  --sh-2:0 4px 8px rgba(16,38,94,.06),0 20px 40px rgba(16,38,94,.12);
  --ease:ease-out .18s;
}
/* ===================== reset / base ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none}
a:hover{color:var(--brand-700)}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.35;color:var(--c-text)}
h1{font-size:clamp(28px,4.2vw,42px);line-height:1.22;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(22px,3vw,32px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.4;font-weight:600}
h4{font-size:17px;line-height:1.45;font-weight:600}
ul,ol{margin:0 0 16px;padding-left:20px}
li{margin-bottom:8px;line-height:1.8}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

/* ===================== 容器 ===================== */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
@media (min-width:1280px){
  .grid-container{max-width:1200px;padding-left:32px;padding-right:32px}
}
@media (max-width:639px){
  .grid-container{padding-left:16px;padding-right:16px}
}
.section{padding:72px 0}
@media (min-width:1024px){.section{padding:88px 0}}
@media (max-width:639px){.section{padding:56px 0}}

/* ===================== 顶部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,38,94,.08)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px;max-width:1200px;margin:0 auto}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text)}
.brand:hover{color:var(--c-text)}
.brand-mark{
  width:28px;height:28px;border-radius:8px;background:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;flex:none;
}
.brand-mark svg{width:18px;height:18px}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{
  position:relative;font-size:15px;font-weight:600;color:var(--c-text-2);
  padding:6px 2px;transition:color var(--ease);
}
.main-nav a:hover{color:var(--brand-600)}
.main-nav a.active{color:var(--brand-600)}
.main-nav a.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:-6px;width:20px;height:2px;border-radius:2px;background:var(--brand-600);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line-brand);
  background:var(--c-surface);display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand-600);cursor:pointer;transition:var(--ease);
}
.nav-icon-btn:hover{background:var(--brand-100)}
.nav-icon-btn svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;border-radius:10px;padding:12px 22px;
  border:1px solid transparent;cursor:pointer;transition:var(--ease);line-height:1.2;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 6px 16px rgba(42,84,214,.22)}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(42,84,214,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:rgba(42,84,214,.28)}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:0 6px 16px rgba(249,115,22,.24)}
.btn-accent:hover{background:#E2650D;color:#fff;transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--brand-600)}
.link-arrow svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ===================== 徽章 / 标签 ===================== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-100);color:var(--brand-700);
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--r-pill);
}
.tag{
  display:inline-block;font-size:12px;font-weight:600;color:var(--c-text-2);
  border:1px solid var(--c-line);border-radius:var(--r-pill);padding:4px 12px;background:#fff;
}
.badge-ok{background:rgba(15,169,127,.12);color:#0B7F60}

/* ===================== 面包屑 ===================== */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px}
.crumb a{color:var(--c-text-3)}
.crumb a:hover{color:var(--brand-600)}
.crumb span.sep{color:#C4CBD9}

/* ===================== 页头（居中） ===================== */
.page-hero{
  background:
    radial-gradient(900px 340px at 50% -120px, rgba(42,84,214,.10), rgba(42,84,214,0) 70%),
    var(--c-surface);
  border-bottom:1px solid var(--c-line);
  padding:56px 0 44px;
  text-align:center;
}
.page-hero .crumb{justify-content:center}
.page-hero h1{max-width:900px;margin:0 auto 16px}
.hero-lead{
  max-width:660px;margin:0 auto;font-size:17px;line-height:1.85;color:var(--c-text-2);
}
.hero-meta{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:22px}
@media (max-width:639px){
  .page-hero{padding:40px 0 34px}
  .hero-lead{font-size:16px}
}

/* ===================== 问答布局 ===================== */
.faq-layout{padding:72px 0}
@media (min-width:1024px){.faq-layout{padding:88px 0}}
@media (max-width:639px){.faq-layout{padding:48px 0}}

.faq-index{position:sticky;top:92px}
.index-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);padding:22px;margin-bottom:20px;
}
.index-card h2{font-size:16px;margin-bottom:6px}
.index-card .index-sub{font-size:13px;color:var(--c-text-3);margin-bottom:14px}
.index-list{list-style:none;margin:0;padding:0}
.index-list li{margin:0}
.index-link{
  display:flex;gap:10px;align-items:flex-start;
  padding:10px 10px;border-radius:var(--r-s);font-size:14px;line-height:1.55;
  color:var(--c-text-2);border-left:2px solid transparent;transition:var(--ease);
}
.index-link:hover{background:var(--c-surface-2);color:var(--brand-600);border-left-color:var(--brand-600)}
.index-link.active{color:var(--brand-600);font-weight:600;border-left-color:var(--brand-600);background:var(--brand-100)}
.index-num{
  flex:none;font-size:12px;font-weight:700;color:var(--brand-600);
  background:var(--brand-100);border-radius:6px;padding:2px 7px;line-height:1.5;
}
.index-figure{
  margin:0;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh-1);
}
.index-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  filter:saturate(.94);background:var(--brand-100);
}
.index-figure figcaption{
  font-size:13px;color:var(--c-text-3);padding:12px 16px;border-top:1px solid var(--c-line);
}

/* 问答条目 */
.faq-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);box-shadow:var(--sh-1);padding:8px 28px}
.faq-item{padding:28px 0;border-top:1px solid var(--c-line)}
.faq-item:first-child{border-top:none}
.faq-item h3{
  font-size:18px;line-height:1.5;margin:0 0 12px;
  display:flex;gap:12px;align-items:flex-start;
}
.faq-item h3 .q-mark{
  flex:none;width:26px;height:26px;border-radius:8px;background:var(--brand-100);
  color:var(--brand-700);font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;margin-top:2px;
}
.faq-body{font-size:15px;line-height:1.75;color:var(--c-text-2);padding-left:38px}
.faq-body p{margin-bottom:12px}
.faq-body ul{margin:0 0 12px;padding-left:18px}
.faq-body li{font-size:15px;line-height:1.75;margin-bottom:6px}
.faq-body ul li::marker{color:var(--brand-600)}
.faq-note{
  background:var(--c-surface-2);border-left:3px solid var(--brand-600);
  border-radius:0 var(--r-s) var(--r-s) 0;padding:14px 18px;font-size:14px;line-height:1.75;color:var(--c-text-2);
}
@media (max-width:639px){
  .faq-list{padding:4px 18px}
  .faq-item{padding:22px 0}
  .faq-body{padding-left:0}
  .faq-item h3{font-size:17px}
}

/* ===================== 对比表 ===================== */
.compare-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);overflow:hidden;margin-top:22px;
}
.compare-head{
  display:grid;grid-template-columns:1fr 1.5fr;
  background:var(--brand-100);font-size:15px;font-weight:600;color:var(--brand-700);
}
.compare-head span{padding:16px 22px}
.compare-row{
  display:grid;grid-template-columns:1fr 1.5fr;border-top:1px solid var(--c-line);
}
.compare-row span{padding:18px 22px;font-size:15px;line-height:1.75;color:var(--c-text-2)}
.compare-row span:first-child{color:var(--c-text);font-weight:600}
@media (max-width:639px){
  .compare-head{grid-template-columns:1fr}
  .compare-head span:nth-child(2){display:none}
  .compare-row{grid-template-columns:1fr}
  .compare-row span:first-child{padding-bottom:0;font-size:15px}
  .compare-row span:last-child{padding-top:6px}
}

/* ===================== 自检清单 ===================== */
.check-section{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:28px}
.check-item{
  background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:var(--r-m);
  padding:22px;transition:var(--ease);
}
.check-item:hover{border-color:var(--line-brand);box-shadow:var(--sh-1);transform:translateY(-3px)}
.check-icon{
  width:40px;height:40px;border-radius:10px;background:var(--brand-100);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.check-icon svg{width:22px;height:22px;stroke:var(--brand-600);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.check-item h3{font-size:16px;margin-bottom:8px}
.check-item p{font-size:14px;line-height:1.7;color:var(--c-text-2);margin:0}
@media (min-width:640px) and (max-width:1023px){.check-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:639px){.check-grid{grid-template-columns:1fr;gap:16px}margin-top:22px}

/* ===================== CTA 表单区 ===================== */
.cta-section{padding:88px 0}
@media (max-width:639px){.cta-section{padding:56px 0}}
.cta-panel{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);padding:36px;
}
@media (max-width:639px){.cta-panel{padding:24px}}
.cta-copy h2{font-size:clamp(22px,2.6vw,28px)}
.cta-copy p{color:var(--c-text-2);font-size:15px}
.cta-points{list-style:none;margin:20px 0 0;padding:0}
.cta-points li{
  display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--c-text-2);margin-bottom:10px;
}
.cta-points svg{
  flex:none;width:20px;height:20px;margin-top:3px;stroke:var(--ok-500);fill:none;
  stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid .field-full{grid-column:1 / -1}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-text-2);margin-bottom:8px}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select,
.field textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--r-s);
  background:#fff;color:var(--c-text);font-size:15px;font-family:inherit;
  padding:0 14px;height:46px;transition:var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(42,84,214,.15);
}
.privacy-row{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-text-3);
  line-height:1.65;margin:16px 0 18px;
}
.privacy-row input[type="checkbox"]{
  width:18px;height:18px;margin-top:3px;accent-color:var(--brand-600);flex:none;
}
.form-hint{font-size:13px;color:var(--c-text-3);margin-top:12px}
@media (max-width:639px){.form-grid{grid-template-columns:1fr}}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 26px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px;
}
.site-footer .brand-mark{background:rgba(255,255,255,.14)}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;transition:var(--ease)}
.footer-links a:hover{color:#fff}
.footer-note{font-size:13.5px;line-height:1.8}
.footer-note strong{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:13px;color:rgba(255,255,255,.6);
}
@media (min-width:640px) and (max-width:1023px){
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:639px){
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding:48px 0 22px}
}

/* ===================== 移动底部 Tab ===================== */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  background:#fff;border-top:1px solid var(--c-line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:4px;height:60px;font-size:11px;font-weight:600;color:var(--c-text-3);
}
.mobile-tabbar a.active{color:var(--brand-600)}
.mobile-tabbar svg{
  width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round;
}
@media (max-width:1023px){
  .mobile-tabbar{display:flex}
  body{padding-bottom:76px}
  .main-nav{display:none}
  .nav-cta-desktop{display:none}
  .nav-inner{height:56px}
  .brand-text{font-size:16px}
}

/* ===================== 弹层 ===================== */
.reveal{
  border:none;border-radius:var(--r-l);max-width:560px;
  border-top:4px solid var(--brand-600);padding:28px;
  box-shadow:0 24px 60px rgba(16,38,94,.24);
}
.reveal h3{font-size:20px;margin-bottom:6px}
.reveal p.reveal-sub{font-size:14px;color:var(--c-text-2);margin-bottom:18px}
.reveal .close-button{
  width:36px;height:36px;border-radius:50%;background:var(--c-surface-2);
  color:var(--c-text-2);font-size:20px;line-height:1;top:14px;right:14px;
  display:flex;align-items:center;justify-content:center;
}
.reveal .close-button:hover{background:var(--brand-100);color:var(--brand-700)}
.reveal-overlay{background:rgba(16,38,94,.45)}
@media (max-width:639px){
  .reveal{
    width:100%;max-width:100%;left:0;right:0;bottom:0;top:auto;
    border-radius:20px 20px 0 0;max-height:88vh;overflow-y:auto;
  }
}

/* ===================== 动效降级 ===================== */
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .check-item:hover,.btn:hover{transform:none !important}
}