/* roulang page: index */
:root{
  --brand:#0FB98A;
  --brand-deep:#0A9C74;
  --brand-soft:rgba(15,185,138,.08);
  --violet:#6C4CFF;
  --violet-soft:rgba(108,76,255,.08);
  --coral:#FF5C39;
  --ink:#0E1113;
  --ink-soft:#171B1D;
  --bg:#F5F7F5;
  --card:#FFFFFF;
  --line:#E4E8E4;
  --line-strong:#D3DAD5;
  --text:#1B211F;
  --muted:#5C6763;
  --disable:#A9B2AE;
  --l1:#9AA5A0;
  --l2:#0FB98A;
  --l3:#6C4CFF;
  --r-pill:999px;
  --r-card:16px;
  --r-block:24px;
  --r-input:12px;
  --shadow:0 1px 2px rgba(14,17,19,.04),0 12px 32px -12px rgba(14,17,19,.12);
  --shadow-hover:0 2px 8px rgba(14,17,19,.07),0 22px 48px -14px rgba(14,17,19,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:240ms;
  --container:1200px;
  --gutter:24px;
  --sect:96px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
.num{font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
}
@media (min-width:1440px){:root{--container:1280px;}}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:120;
  padding:0 16px;
  pointer-events:none;
}
.navbar{
  pointer-events:auto;
  max-width:var(--container);
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 8px 0 20px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow);
  transition:height var(--dur) var(--ease),box-shadow var(--dur) var(--ease),padding var(--dur) var(--ease);
}
.site-header.is-scrolled .navbar{
  height:56px;
  box-shadow:var(--shadow-hover);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  display:grid;
  grid-template-columns:repeat(2,7px);
  grid-template-rows:repeat(2,7px);
  gap:3px;
}
.brand-mark i{
  display:block;
  border-radius:2px;
  background:var(--brand);
}
.brand-mark i:nth-child(2){background:var(--violet);}
.brand-mark i:nth-child(3){background:#0E1113;opacity:.75;}
.brand-mark i:nth-child(4){background:var(--brand);opacity:.45;}
.brand-text{display:flex;flex-direction:column;line-height:1.05;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.02em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.14em;}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  font-size:15px;
  color:var(--muted);
  border-radius:var(--r-pill);
  white-space:nowrap;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:6px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--dur) var(--ease);
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{
  color:var(--brand-deep);
  background:var(--brand-soft);
  font-weight:600;
}
.nav-cta{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-pill);
  background:var(--brand);
  color:#fff;
  font-size:15px;
  font-weight:600;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
  box-shadow:0 6px 18px -8px rgba(15,185,138,.7);
}
.nav-cta:hover{background:var(--brand-deep);transform:translateY(-2px);}
.nav-cta:active{transform:translateY(0);box-shadow:none;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  color:var(--text);
}
.nav-toggle i{font-size:16px;}
.mobile-drawer{
  pointer-events:auto;
  position:fixed;
  inset:0;
  background:#fff;
  z-index:130;
  display:none;
  flex-direction:column;
  padding:88px 24px 28px;
}
.mobile-drawer.is-open{display:flex;}
.mobile-drawer a{
  height:56px;
  display:flex;
  align-items:center;
  font-size:18px;
  font-weight:600;
  border-bottom:1px solid var(--line);
  color:var(--text);
}
.mobile-drawer a.is-active{color:var(--brand-deep);}
.mobile-drawer .drawer-cta{
  margin-top:auto;
  height:52px;
  border-radius:var(--r-pill);
  background:var(--brand);
  color:#fff;
  justify-content:center;
  border:0;
  font-size:16px;
}
.drawer-close{
  position:absolute;
  top:22px;
  right:22px;
  width:44px;
  height:44px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
}

/* ---------- 通用按钮 / 标签 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 26px -12px rgba(15,185,138,.85);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:transparent;}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-line{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-deep);
  padding-top:6px;
  border-top:1px solid var(--line);
  width:100%;
}
.btn-line:hover{color:var(--ink);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn:focus-visible,.nav-cta:focus-visible,a:focus-visible,button:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:3px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  background:#fff;
  font-size:12px;
  letter-spacing:.04em;
  color:var(--muted);
}
.tag-brand{border-color:rgba(15,185,138,.5);color:var(--brand-deep);background:var(--brand-soft);}
.tag-violet{border-color:rgba(108,76,255,.4);color:var(--violet);background:var(--violet-soft);}
.tag-coral{border-color:rgba(255,92,57,.4);color:var(--coral);background:rgba(255,92,57,.07);}
.badge-dot{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  color:var(--muted);
}
.badge-dot::before{
  content:"";
  width:7px;height:7px;border-radius:50%;
  background:var(--brand);
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:150px 0 var(--sect);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(14,17,19,.055) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.6;
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.hero-copy h1{
  font-size:56px;
  line-height:1.12;
  font-weight:800;
  letter-spacing:-.02em;
  margin:18px 0 18px;
}
.hero-copy h1 span{color:var(--brand-deep);}
.hero-sub{
  font-size:18px;
  color:var(--muted);
  max-width:30ch;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.hero-metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:44px;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.hero-metrics li{display:flex;flex-direction:column;gap:4px;}
.hero-metrics .m-num{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.01em;
  font-variant-numeric:tabular-nums;
}
.hero-metrics .m-label{font-size:13px;color:var(--muted);}
.hero-visual{
  position:relative;
}
.hero-visual img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:#EDF1EE;
}
.level-float{
  position:absolute;
  left:-16px;
  bottom:-22px;
  width:236px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:16px 18px;
  box-shadow:var(--shadow-hover);
}
.level-float .lv-name{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:800;
  letter-spacing:-.01em;
}
.level-float .lv-name i{
  width:22px;height:22px;border-radius:7px;
  background:var(--ink);
  border:1px solid var(--brand);
  display:inline-block;
}
.level-float ul{margin-top:10px;display:grid;gap:6px;}
.level-float li{
  display:flex;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--muted);
}
.level-float li b{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums;}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sect) 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:36px;
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.02em;
  max-width:22ch;
}
.section-head p{
  font-size:15px;
  color:var(--muted);
  max-width:34ch;
}
.section-note{
  font-size:13px;
  color:var(--muted);
  margin-top:16px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--brand-deep);
  text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:20px;height:1px;background:var(--brand);}

/* ---------- 权益对比表 ---------- */
.cmp-shell{
  position:relative;
  border-radius:var(--r-card);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.cmp-scroll{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
.cmp-grid{
  display:grid;
  grid-template-columns:170px repeat(4,minmax(190px,1fr));
  min-width:900px;
}
.cmp-cell{
  padding:16px 18px;
  font-size:14.5px;
  border-bottom:1px solid var(--line);
  border-right:1px solid var(--line);
  display:flex;
  align-items:center;
  min-height:60px;
  transition:background var(--dur) var(--ease);
}
.cmp-cell:nth-child(5n){border-right:0;}
.cmp-grid > .cmp-cell:nth-last-child(-n+5){border-bottom:0;}
.cmp-row-label{
  font-weight:600;
  color:var(--text);
  background:#FAFBFA;
  font-size:14px;
}
.cmp-head{
  flex-direction:column;
  align-items:flex-start;
  gap:6px;
  padding-top:22px;
  padding-bottom:22px;
  min-height:auto;
  background:#fff;
}
.cmp-head .lv{
  font-size:16px;
  font-weight:800;
  letter-spacing:-.01em;
  display:flex;
  align-items:center;
  gap:8px;
}
.cmp-head .lv::before{
  content:"";
  width:4px;
  height:16px;
  border-radius:2px;
  background:var(--l1);
}
.cmp-head[data-lv="2"] .lv::before{background:var(--l2);}
.cmp-head[data-lv="3"] .lv::before{background:var(--l3);}
.cmp-head[data-lv="4"] .lv::before{background:var(--brand);}
.cmp-head .price{
  font-size:13px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.cmp-cell.col-rec{background:rgba(15,185,138,.05);}
.cmp-head.col-rec{
  background:rgba(15,185,138,.09);
  border-top:2px solid var(--brand);
  position:relative;
}
.cmp-head.col-rec .corner{
  position:absolute;
  top:0;
  right:0;
  background:var(--brand);
  color:#fff;
  font-size:11px;
  letter-spacing:.08em;
  padding:4px 10px;
  border-bottom-left-radius:10px;
}
.cmp-cell b{font-weight:600;}
.cmp-yes{color:var(--brand-deep);font-weight:600;}
.cmp-no{color:var(--disable);}
.cmp-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:20px;
}

/* ---------- 等级亮点 ---------- */
.level-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:24px;
}
.level-card{
  border-radius:var(--r-card);
  padding:32px;
  display:flex;
  flex-direction:column;
  gap:18px;
  border:1px solid var(--line);
  background:#fff;
  box-shadow:var(--shadow);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.level-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.level-card.is-main{
  grid-row:span 2;
  color:#F2F6F3;
  background:var(--ink);
  border-color:rgba(255,255,255,.12);
  min-height:440px;
  justify-content:flex-start;
  position:relative;
  overflow:hidden;
}
.level-card.is-main::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(135deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:14px 14px;
  pointer-events:none;
}
.level-card.is-main .lv-title{color:#fff;}
.level-card.is-main .lv-points li{color:rgba(255,255,255,.72);}
.level-card.is-main .btn-line{color:#7FE6C6;border-top-color:rgba(255,255,255,.14);}
.level-card.is-main .btn-line:hover{color:#fff;}
.lv-badge{
  width:44px;height:44px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;
  color:#fff;
  letter-spacing:.02em;
}
.lv-badge.t1{background:var(--l1);}
.lv-badge.t2{background:var(--l2);}
.lv-badge.t3{background:var(--l3);}
.lv-badge.t4{background:rgba(255,255,255,.06);border:1px solid var(--brand);color:#7FE6C6;}
.lv-title{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.01em;
}
.lv-desc{font-size:14px;color:var(--muted);}
.level-card.is-main .lv-desc{color:rgba(255,255,255,.6);}
.lv-points{display:grid;gap:10px;margin-top:4px;}
.lv-points li{
  position:relative;
  padding-left:16px;
  font-size:14.5px;
  color:var(--muted);
}
.lv-points li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--brand);
}
.level-card .btn-line{margin-top:auto;}

/* ---------- 内容预览 ---------- */
.preview-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.preview-card{
  border-radius:var(--r-card);
  overflow:hidden;
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.preview-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.preview-media{
  position:relative;
  overflow:hidden;
  background:#EDF1EE;
}
.preview-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform 480ms var(--ease);
}
.preview-card:hover .preview-media img{transform:scale(1.03);}
.lock-chip{
  position:absolute;
  top:14px;right:14px;
  width:34px;height:34px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.94);
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);
  font-size:13px;
}
.preview-veil{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  background:linear-gradient(to top,#F5F7F5 40%,rgba(245,247,245,0));
}
.preview-veil span{font-size:13.5px;color:var(--muted);}
.preview-body{padding:22px 24px 26px;}
.preview-body h3{font-size:20px;font-weight:800;letter-spacing:-.01em;}
.preview-body p{margin-top:10px;font-size:14.5px;color:var(--muted);}
.preview-offset{margin-top:56px;}
@media (min-width:1024px){
  .preview-grid{grid-template-columns:1.1fr .9fr;}
  .preview-grid .preview-card:nth-child(2){margin-top:56px;}
}

/* ---------- 最新信息 ---------- */
.news-layout{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:24px;
}
.news-lead{
  border-radius:var(--r-card);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.news-lead:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.news-lead-cover{display:block;overflow:hidden;background:#EDF1EE;}
.news-lead-cover img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform 480ms var(--ease);
}
.news-lead:hover .news-lead-cover img{transform:scale(1.03);}
.news-lead-body{padding:26px 28px 30px;}
.news-lead-body h3{
  font-size:22px;
  font-weight:800;
  line-height:1.4;
  letter-spacing:-.01em;
  margin:12px 0 10px;
}
.news-lead-body h3 a:hover{color:var(--brand-deep);}
.news-lead-body p{font-size:14.5px;color:var(--muted);}
.news-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin-top:16px;
  font-size:13px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.news-list{
  border-radius:var(--r-card);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  padding:8px 8px;
  display:flex;
  flex-direction:column;
}
.news-item{
  display:block;
  padding:16px 18px;
  border-bottom:1px solid var(--line);
  border-radius:10px;
  transition:background var(--dur) var(--ease);
}
.news-item:last-child{border-bottom:0;}
.news-item:hover{background:#FAFBFA;}
.news-item h4{
  font-size:15.5px;
  font-weight:600;
  line-height:1.55;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.news-item:hover h4{color:var(--brand-deep);transform:translateX(2px);}
.news-item .news-meta{margin-top:6px;gap:10px;}
.news-empty{
  border:1px dashed var(--line-strong);
  border-radius:var(--r-card);
  padding:80px 24px;
  text-align:center;
  background:#fff;
}
.news-empty i{
  font-size:22px;
  color:var(--disable);
  display:block;
  margin-bottom:14px;
}
.news-empty p{font-size:15px;color:var(--muted);margin-bottom:18px;}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:340px 1fr;
  gap:48px;
  align-items:start;
}
.faq-aside h2{
  font-size:36px;
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.02em;
}
.faq-aside p{margin-top:16px;font-size:15px;color:var(--muted);}
.faq-list{border-top:1px solid var(--line);}
.faq-list details{border-bottom:1px solid var(--line);}
.faq-list summary{
  list-style:none;
  cursor:pointer;
  min-height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 4px 18px 0;
  font-size:16px;
  font-weight:600;
  position:relative;
  transition:color var(--dur) var(--ease);
}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary::before{
  content:"";
  position:absolute;
  left:-14px;
  top:18px;
  bottom:18px;
  width:3px;
  border-radius:2px;
  background:var(--brand);
  opacity:0;
  transition:opacity var(--dur) var(--ease);
}
.faq-list details[open] summary::before{opacity:1;}
.faq-list summary:hover{color:var(--brand-deep);}
.faq-list .plus{
  flex:0 0 auto;
  position:relative;
  width:16px;height:16px;
}
.faq-list .plus::before,
.faq-list .plus::after{
  content:"";
  position:absolute;
  background:var(--muted);
  border-radius:2px;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-list .plus::before{left:0;right:0;top:7px;height:2px;}
.faq-list .plus::after{top:0;bottom:0;left:7px;width:2px;}
.faq-list details[open] .plus::after{transform:scaleY(0);}
.faq-list details[open] .plus::before{background:var(--brand);}
.faq-answer{
  background:#FAFBFA;
  padding:6px 20px 20px 0;
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
  max-width:66ch;
}

/* ---------- CTA ---------- */
.cta-block{
  border-radius:var(--r-block);
  background:var(--ink);
  color:#fff;
  padding:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  position:relative;
  overflow:hidden;
}
.cta-block::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.035) 0 1px,transparent 1px 12px);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:52ch;}
.cta-copy h2{font-size:32px;font-weight:800;letter-spacing:-.02em;}
.cta-copy p{margin-top:14px;color:rgba(255,255,255,.68);font-size:15.5px;}
.cta-actions{
  position:relative;
  z-index:1;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  flex:0 0 auto;
}
.btn-outline-white{
  border-color:rgba(255,255,255,.28);
  color:#fff;
}
.btn-outline-white:hover{background:rgba(255,255,255,.1);border-color:#fff;transform:translateY(-2px);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sect);
  background:#fff;
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--muted);max-width:34ch;}
.footer-domain{
  display:inline-block;
  margin-top:14px;
  font-size:13px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  margin-bottom:16px;
  color:var(--text);
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col span{
  font-size:14px;
  color:var(--muted);
  transition:color var(--dur) var(--ease);
}
.footer-col a:hover{color:var(--brand-deep);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--muted);
}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;
  right:20px;
  bottom:24px;
  height:44px;
  padding:0 18px;
  border-radius:var(--r-pill);
  background:var(--ink);
  color:#fff;
  font-size:13.5px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  box-shadow:var(--shadow-hover);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur);
  z-index:90;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-deep);}

/* ---------- 动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity 320ms var(--ease),transform 320ms var(--ease);
}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--sect:72px;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .navbar{padding:0 10px 0 18px;}
  .hero{padding-top:130px;}
  .hero-grid{grid-template-columns:1fr;gap:64px;}
  .hero-copy h1{font-size:38px;}
  .hero-metrics{grid-template-columns:repeat(2,1fr);}
  .hero-visual{max-width:560px;}
  .level-float{left:16px;bottom:-28px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .section-head h2{font-size:28px;}
  .level-grid{grid-template-columns:1fr;}
  .level-card.is-main{min-height:auto;grid-row:auto;}
  .news-layout{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .faq-aside h2{font-size:28px;}
  .cta-block{flex-direction:column;align-items:flex-start;padding:40px;}
  .cta-copy h2{font-size:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--sect:56px;--gutter:16px;}
  body{font-size:15px;}
  .hero{padding-top:116px;}
  .hero-copy h1{font-size:32px;letter-spacing:-.01em;}
  .hero-sub{font-size:16px;}
  .hero-metrics{gap:16px;}
  .preview-grid{grid-template-columns:1fr;}
  .preview-grid .preview-card:nth-child(2){margin-top:0;}
  .level-card{padding:24px;}
  .news-lead-body{padding:20px;}
  .cta-block{padding:28px 22px;border-radius:var(--r-card);}
  .btn{height:46px;padding:0 20px;width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .cta-actions{flex-direction:column;width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:14px;bottom:16px;}
}
@media (max-width:520px){
  .hero-copy h1{font-size:28px;}
  .section-head h2{font-size:24px;}
  .news-item h4{white-space:normal;}
  .level-float{position:static;width:100%;margin-top:14px;left:auto;bottom:auto;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --brand:#0FB98A;
  --brand-dark:#0BA377;
  --brand-soft:rgba(15,185,138,.10);
  --violet:#6C4CFF;
  --coral:#FF5C39;
  --ink:#0E1113;
  --bg:#F5F7F5;
  --card:#FFFFFF;
  --line:#E4E8E4;
  --text:#1B211F;
  --muted:#5C6763;
  --disabled:#A9B2AE;
  --l1:#9AA5A0;
  --l2:#0FB98A;
  --l3:#6C4CFF;
  --r-pill:999px;
  --r-card:16px;
  --r-block:24px;
  --r-input:12px;
  --shadow-sm:0 1px 2px rgba(14,17,19,.04),0 12px 32px -12px rgba(14,17,19,.12);
  --shadow-md:0 2px 4px rgba(14,17,19,.05),0 22px 44px -16px rgba(14,17,19,.20);
  --sp-section:96px;
  --sp-section-m:56px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:260ms;
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease),border-color var(--dur) var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.15;color:var(--text)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:999}
.skip-link:focus{left:0}
.num{font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:120}
.navbar{
  max-width:1200px;margin:0 auto;height:64px;
  display:flex;align-items:center;gap:18px;
  padding:0 12px 0 20px;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--line);border-radius:var(--r-pill);
  box-shadow:var(--shadow-sm);
  transition:box-shadow var(--dur) var(--ease),padding var(--dur) var(--ease);
}
.site-header.is-scrolled .navbar{box-shadow:var(--shadow-md);padding:0 10px 0 18px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:grid;grid-template-columns:repeat(2,1fr);gap:3px;width:22px;height:22px}
.brand-mark i{display:block;border-radius:3px;background:var(--brand)}
.brand-mark i:nth-child(2){background:var(--violet)}
.brand-mark i:nth-child(3){background:var(--brand-dark)}
.brand-mark i:nth-child(4){background:var(--ink)}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.02em}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--brand-dark);background:var(--brand-soft);font-weight:600}
.nav-links a.is-active::after{transform:scaleX(0)}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-cta:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 10px 24px -10px rgba(15,185,138,.7)}
.nav-cta:active{transform:translateY(0);box-shadow:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--text);font-size:17px;
  align-items:center;justify-content:center;margin-left:auto;
}
.nav-drawer{
  position:fixed;inset:0;background:#fff;z-index:130;
  display:flex;flex-direction:column;padding:88px 24px 24px;
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur);
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.nav-drawer a{
  display:flex;align-items:center;height:56px;font-size:18px;font-weight:600;
  border-bottom:1px solid var(--line);color:var(--text);
}
.nav-drawer a.is-active{color:var(--brand-dark)}
.nav-drawer .drawer-cta{
  margin-top:auto;height:52px;border-radius:var(--r-pill);background:var(--brand);color:#fff;
  justify-content:center;border-bottom:0;font-size:16px;
}
.drawer-close{
  position:absolute;top:20px;right:20px;width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;font-size:18px;color:var(--text);
}

/* ---------- 页面头部 / 面包屑 ---------- */
main{padding-top:104px}
.page-head{padding:8px 0 0}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:18px;
}
.breadcrumb a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:var(--disabled)}
.breadcrumb .current{font-weight:600;color:var(--brand-dark)}
.cat-bar{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:14px 20px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-pill);
  box-shadow:var(--shadow-sm);
}
.cat-badge{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid var(--brand);color:var(--brand-dark);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.cat-bar .bar-text{font-size:14px;color:var(--muted)}

/* ---------- 文章 ---------- */
.article-wrap{max-width:840px;margin:0 auto;padding:56px 24px 0}
.article-head{padding-bottom:28px;border-bottom:1px solid var(--line)}
.article-head h1{font-size:44px;line-height:1.16;letter-spacing:-.025em;margin-bottom:20px}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--muted)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--brand);font-size:13px}
.article-cover{margin:32px 0 0}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#EDF1EE;border:1px solid var(--line)}
.article-cover figcaption{margin-top:12px;text-align:center;font-size:13px;color:var(--muted)}

.article-body{margin-top:40px;font-size:16px;line-height:1.9;color:var(--text)}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;font-size:26px;font-weight:800;letter-spacing:-.02em;
  margin:46px 0 18px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:19px;font-weight:600;margin:32px 0 14px;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:2px}
.article-body li{position:relative;padding-left:20px;margin-bottom:10px;color:var(--muted)}
.article-body li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--brand);opacity:.85;
}
.article-body ol{counter-reset:li}
.article-body ol li::before{
  counter-increment:li;content:counter(li);width:auto;height:auto;background:none;
  color:var(--brand-dark);font-size:13px;font-weight:700;top:0;left:0;
}
.article-body ol li{padding-left:24px}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:#FAFBFA;border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body img{margin:26px auto;border-radius:12px;border:1px solid var(--line)}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:#FAFBFA;font-weight:600}
.article-body code{background:#EDF1EE;border-radius:6px;padding:2px 6px;font-size:14px}

.article-empty{
  border:1px dashed var(--line);border-radius:var(--r-block);background:var(--card);
  text-align:center;padding:72px 24px;
}
.article-empty i{font-size:30px;color:var(--disabled);margin-bottom:16px;display:block}
.article-empty h2{font-size:24px;margin-bottom:12px}
.article-empty p{color:var(--muted);max-width:460px;margin:0 auto 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 28px -14px rgba(15,185,138,.85)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{background:rgba(15,185,138,.08);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn:disabled,.btn.is-disabled{background:#EDF1EE;color:var(--disabled);box-shadow:none;transform:none;cursor:not-allowed}

/* ---------- 文末操作条 ---------- */
.article-actions{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  margin-top:52px;padding:20px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-block);box-shadow:var(--shadow-sm);
}
.act-btn{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;
  font-size:14px;font-weight:600;color:var(--muted);
}
.act-btn:hover{border-color:var(--brand);color:var(--brand-dark);background:rgba(15,185,138,.07)}
.act-note{margin-left:auto;font-size:13px;color:var(--muted)}

/* ---------- 相关推荐 ---------- */
.related{padding:var(--sp-section) 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap}
.sec-head h2{font-size:32px;letter-spacing:-.025em}
.sec-head p{font-size:15px;color:var(--muted);margin-top:10px}
.text-link{font-size:14px;font-weight:600;color:var(--brand-dark);display:inline-flex;align-items:center;gap:6px}
.text-link:hover{gap:10px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#D6DED8}
.rel-card .thumb{overflow:hidden;border-radius:0}
.rel-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;background:#EDF1EE;transition:transform 420ms var(--ease)}
.rel-card:hover .thumb img{transform:scale(1.03)}
.rel-card .rel-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card h3{font-size:18px;line-height:1.45;font-weight:700;letter-spacing:-.01em}
.rel-card:hover h3{color:var(--brand-dark)}
.rel-card .rel-date{font-size:13px;color:var(--muted);margin-top:auto}

.back-row{display:flex;justify-content:center;padding:64px 24px var(--sp-section)}

/* ---------- CTA ---------- */
.cta-block{
  background:var(--ink);border-radius:var(--r-block);padding:56px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  position:relative;overflow:hidden;color:#fff;
}
.cta-block::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 9px);
  opacity:.5;pointer-events:none;
}
.cta-block h2{color:#fff;font-size:30px;letter-spacing:-.025em;margin-bottom:10px}
.cta-block p{color:rgba(255,255,255,.72);font-size:15px;max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px)}
.cta-block .btn-primary{z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:var(--sp-section);background:var(--bg);border-top:1px solid var(--line);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:320px}
.footer-domain{
  display:inline-block;margin-top:16px;padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;font-size:13px;color:var(--muted);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:18px;letter-spacing:0}
.footer-col ul li{margin-bottom:12px}
.footer-col a,.footer-col span{font-size:14px;color:var(--muted);line-height:1.6}
.footer-col a:hover{color:var(--brand-dark)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:100;
  width:48px;height:48px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:#fff;color:var(--text);box-shadow:var(--shadow-sm);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:var(--brand);color:var(--brand-dark)}

.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .navbar{padding:0 12px 0 16px}
  main{padding-top:96px}
  .article-head h1{font-size:34px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-block{padding:40px}
}
@media (max-width:767px){
  :root{--sp-section:64px}
  .container{padding:0 16px}
  .article-wrap{padding:36px 16px 0}
  .article-head h1{font-size:28px}
  .article-body h2{font-size:22px}
  .sec-head h2{font-size:24px}
  .rel-grid{grid-template-columns:1fr}
  .cta-block h2{font-size:24px}
  .act-note{margin-left:0;width:100%}
}
@media (max-width:520px){
  .brand-text em{font-size:11px}
  .rel-card h3{font-size:17px}
  .footer-grid{grid-template-columns:1fr}
  .article-actions{padding:16px}
  .btn{width:100%}
  .cta-actions{width:100%}
  .to-top{right:16px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .rel-card:hover .thumb img{transform:none}
}

/* roulang page: category1 */
:root{
  --brand:#0FB98A;
  --brand-dark:#0AA277;
  --brand-soft:rgba(15,185,138,.10);
  --accent:#6C4CFF;
  --accent-soft:rgba(108,76,255,.10);
  --coral:#FF5C39;
  --ink:#0E1113;
  --bg:#F5F7F5;
  --card:#FFFFFF;
  --line:#E4E8E4;
  --text:#1B211F;
  --muted:#5C6763;
  --disabled:#A9B2AE;
  --l1:#9AA5A0;
  --l2:#0FB98A;
  --l3:#6C4CFF;
  --radius-sm:12px;
  --radius-md:16px;
  --radius-lg:24px;
  --radius-pill:999px;
  --shadow:0 1px 2px rgba(14,17,19,.04), 0 12px 32px -12px rgba(14,17,19,.12);
  --shadow-hover:0 1px 2px rgba(14,17,19,.06), 0 20px 42px -16px rgba(14,17,19,.20);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:260ms;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),opacity var(--dur) var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.16;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.mono{font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ============ 悬浮胶囊导航 ============ */
.site-header{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:900;
  padding:0 24px;
  transition:top var(--dur) var(--ease);
}
.site-header.is-scrolled{top:8px;}
.navbar{
  max-width:var(--container);
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:20px;
  padding:0 12px 0 20px;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow);
  transition:box-shadow var(--dur) var(--ease),padding var(--dur) var(--ease);
}
@media (min-width:1440px){.navbar{max-width:1280px;}}
.site-header.is-scrolled .navbar{box-shadow:var(--shadow-hover);padding:0 10px 0 18px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  display:inline-grid;
  grid-template-columns:repeat(2,5px);
  grid-template-rows:repeat(2,5px);
  gap:3px;
  width:16px;
  height:16px;
}
.brand-mark i{display:block;border-radius:1.5px;background:var(--brand);}
.brand-mark i:nth-child(2){background:var(--accent);}
.brand-mark i:nth-child(4){background:var(--ink);}
.brand-text{display:flex;flex-direction:column;line-height:1.05;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.02em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.16em;}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:9px 16px;
  font-size:14px;
  font-weight:500;
  color:var(--muted);
  border-radius:var(--radius-pill);
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:5px;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-weight:600;
}
.nav-links a.is-active::after{transform:scaleX(0);}
.nav-cta{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:44px;
  padding:0 22px;
  background:var(--brand);
  color:#fff;
  font-size:14px;
  font-weight:600;
  border-radius:var(--radius-pill);
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-cta:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px -12px rgba(15,185,138,.7);}
.nav-cta:active{transform:translateY(0);box-shadow:none;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  background:#fff;
  border-radius:var(--radius-pill);
  color:var(--text);
  font-size:16px;
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav-cta{display:none;}
  .navbar{padding:0 10px 0 16px;}
}
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:950;
  background:#fff;
  display:flex;
  flex-direction:column;
  padding:20px 20px 32px;
  transform:translateY(-100%);
  opacity:0;
  visibility:hidden;
  transition:transform 320ms var(--ease),opacity 320ms var(--ease),visibility 320ms;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--radius-pill);
  font-size:16px;color:var(--text);
}
.drawer-links{display:flex;flex-direction:column;}
.drawer-links a{
  height:56px;
  display:flex;
  align-items:center;
  font-size:18px;
  font-weight:600;
  border-bottom:1px solid var(--line);
  color:var(--text);
}
.drawer-links a.is-active{color:var(--brand-dark);}
.drawer-cta{
  margin-top:auto;
  display:flex;align-items:center;justify-content:center;
  height:52px;border-radius:var(--radius-pill);
  background:var(--brand);color:#fff;font-weight:600;
}

/* ============ 通用板块 ============ */
main{padding-top:104px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:36px;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--brand-dark);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--muted);padding:20px 0 0;
}
.breadcrumb a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--brand-dark);font-weight:600;}

/* ============ 分类 Hero ============ */
.cat-hero{
  padding:36px 0 56px;
  border-bottom:1px solid var(--line);
  background-image:radial-gradient(rgba(14,17,19,.045) 1px,transparent 1px);
  background-size:18px 18px;
}
.cat-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:48px;
  align-items:end;
}
.cat-hero h1{
  font-size:56px;
  line-height:1.08;
  letter-spacing:-.03em;
}
.cat-hero h1 span{display:block;}
.cat-hero h1 .kw{color:var(--brand-dark);}
.cat-hero .lead{
  margin-top:20px;
  max-width:620px;
  font-size:16px;
  color:var(--muted);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;
  font-size:12px;
  font-weight:600;
  color:var(--brand-dark);
  background:var(--brand-soft);
  border:1px solid rgba(15,185,138,.28);
  border-radius:var(--radius-pill);
}
.tag.is-accent{color:#5334D6;background:var(--accent-soft);border-color:rgba(108,76,255,.28);}
.tag.is-coral{color:#D63E1E;background:rgba(255,92,57,.10);border-color:rgba(255,92,57,.28);}
.badge-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow);
  padding:24px;
}
.badge-card .badge-top{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--muted);margin-bottom:16px;
}
.badge-card .badge-top i{color:var(--brand);}
.badge-card .badge-title{
  font-size:20px;font-weight:800;letter-spacing:-.02em;
}
.badge-card .badge-desc{margin-top:8px;font-size:14px;color:var(--muted);}
.badge-fields{
  margin-top:20px;
  border-top:1px solid var(--line);
  padding-top:16px;
  display:grid;
  gap:12px;
}
.badge-fields div{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:13px;}
.badge-fields span{color:var(--muted);}
.badge-fields strong{font-size:14px;font-variant-numeric:tabular-nums;letter-spacing:.02em;}

/* ============ 时间线 + 粘性目录 ============ */
.steps-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:56px;
  align-items:start;
}
.timeline{position:relative;padding-left:38px;}
.timeline::before{
  content:"";
  position:absolute;
  left:15px;top:10px;bottom:10px;
  width:2px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(15,185,138,.25) 70%,rgba(15,185,138,0) 100%);
  border-radius:2px;
}
.step{
  position:relative;
  padding:0 0 36px 0;
}
.step:last-child{padding-bottom:0;}
.step-index{
  position:absolute;
  left:-38px;
  top:2px;
  width:32px;height:32px;
  border-radius:var(--radius-pill);
  background:#fff;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--muted);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.step.is-current .step-index{background:var(--brand);border-color:var(--brand);color:#fff;transform:scale(1.06);}
.step h3{font-size:20px;margin-bottom:8px;}
.step p{color:var(--muted);font-size:15px;max-width:640px;}
.step .step-meta{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:12px;font-size:12px;color:var(--muted);
  padding:5px 12px;border:1px solid var(--line);border-radius:var(--radius-pill);background:#fff;
}
.step .step-meta i{color:var(--brand);}
.sticky-toc{
  position:sticky;
  top:104px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:22px 22px 8px;
  box-shadow:var(--shadow);
}
.sticky-toc h3{font-size:14px;letter-spacing:.02em;margin-bottom:14px;color:var(--muted);font-weight:600;}
.sticky-toc ul{display:flex;flex-direction:column;}
.sticky-toc li a{
  display:flex;align-items:center;gap:10px;
  padding:10px 0;
  font-size:14px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.sticky-toc li:last-child a{border-bottom:none;}
.sticky-toc li a i{font-size:11px;color:var(--line);transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);}
.sticky-toc li a:hover{color:var(--brand-dark);}
.sticky-toc li a:hover i{color:var(--brand);transform:translateX(2px);}
.toc-note{
  margin-top:16px;padding:14px;border-radius:var(--radius-sm);
  background:var(--brand-soft);font-size:13px;color:var(--brand-dark);
}

/* ============ 图文交替 ============ */
.media-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
}
.media-row + .media-row{margin-top:72px;}
.media-row.is-flip .media-figure{order:2;}
.media-figure{
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  overflow:hidden;
  background:#EDF1EE;
}
.media-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform 480ms var(--ease);
}
.media-figure:hover img{transform:scale(1.03);}
.media-body h3{font-size:26px;margin-bottom:14px;}
.media-body p{color:var(--muted);font-size:15px;margin-bottom:16px;}
.check-list{display:grid;gap:10px;margin-top:6px;}
.check-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--text);
}
.check-list li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.check-list li.is-accent::before{background:var(--accent);}
.link-inline{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:18px;font-size:14px;font-weight:600;color:var(--brand-dark);
  border-bottom:1px solid rgba(15,185,138,.4);padding-bottom:2px;
}
.link-inline:hover{color:var(--brand);border-bottom-color:var(--brand);}
.link-inline i{font-size:12px;transition:transform var(--dur) var(--ease);}
.link-inline:hover i{transform:translateX(3px);}

/* ============ 要点卡 ============ */
.note-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.note-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:28px;
  box-shadow:var(--shadow);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.note-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D8DED9;}
.note-card h3{font-size:20px;margin-bottom:12px;}
.note-card p{color:var(--muted);font-size:15px;}
.note-card .note-icon{
  width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-dark);
  margin-bottom:16px;font-size:16px;
}
.note-card.is-accent .note-icon{background:var(--accent-soft);color:#5334D6;}

/* ============ FAQ ============ */
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,.8fr) minmax(0,1.6fr);
  gap:56px;
  align-items:start;
}
.faq-side h2{font-size:36px;margin-bottom:16px;}
.faq-side p{color:var(--muted);font-size:15px;margin-bottom:20px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  min-height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:none;border:none;padding:16px 0 16px 0;
  text-align:left;
  font-size:17px;font-weight:600;color:var(--text);
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--brand-dark);}
.faq-q .q-text{position:relative;padding-left:0;transition:padding var(--dur) var(--ease);}
.faq-item.is-open .faq-q .q-text{padding-left:14px;}
.faq-item.is-open .faq-q .q-text::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;background:var(--brand);
}
.faq-icon{
  position:relative;flex:0 0 auto;
  width:20px;height:20px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--muted);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-item.is-open .faq-icon::before{background:var(--brand);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 280ms var(--ease);
}
.faq-a-inner{
  background:#FAFBFA;
  border-radius:var(--radius-sm);
  padding:18px 20px;
  margin-bottom:18px;
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
}

/* ============ CTA ============ */
.cta-block{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  background:var(--ink);
  color:#fff;
  padding:64px;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:40px;
  align-items:center;
}
.cta-block::before{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.045) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.cta-block h2{color:#fff;font-size:34px;position:relative;}
.cta-block p{position:relative;margin-top:14px;color:rgba(255,255,255,.7);font-size:15px;max-width:560px;}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 26px -14px rgba(15,185,138,.75);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{background:var(--brand-soft);border-color:rgba(15,185,138,.4);color:var(--brand-dark);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.28);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.5);}
.btn[disabled]{background:#EDF1EE;color:var(--disabled);border-color:var(--line);cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:24px;
  background:var(--bg);
  border-top:1px solid var(--line);
  padding:72px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--muted);font-size:14px;max-width:340px;}
.footer-domain{
  display:inline-block;margin-top:14px;
  font-size:13px;font-variant-numeric:tabular-nums;letter-spacing:.04em;
  color:var(--muted);
  border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:5px 12px;background:#fff;
}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--brand-dark);}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:800;
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--line);
  color:var(--text);box-shadow:var(--shadow);
  opacity:0;visibility:hidden;
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur);
}
.to-top.is-show{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-3px);color:var(--brand-dark);}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 480ms var(--ease),transform 480ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .cat-hero h1{font-size:46px;}
  .steps-layout{gap:36px;grid-template-columns:minmax(0,1fr) 270px;}
}
@media (max-width:1023px){
  main{padding-top:96px;}
  .section{padding:64px 0;}
  .cat-hero{padding:24px 0 40px;}
  .cat-hero-grid{grid-template-columns:minmax(0,1fr);gap:28px;align-items:start;}
  .cat-hero h1{font-size:38px;}
  .steps-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .sticky-toc{position:static;top:auto;}
  .faq-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-block{grid-template-columns:minmax(0,1fr);padding:44px;gap:26px;}
  .section-head h2,.faq-side h2{font-size:28px;}
  .cta-block h2{font-size:26px;}
}
@media (max-width:767px){
  .media-row{grid-template-columns:minmax(0,1fr);gap:24px;}
  .media-row.is-flip .media-figure{order:0;}
  .media-row + .media-row{margin-top:48px;}
  .media-body h3{font-size:22px;}
  .note-grid{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:560px){
  .container{padding:0 16px;}
  .site-header{padding:0 16px;}
  .brand-text em{letter-spacing:.1em;}
  .cat-hero h1{font-size:32px;}
  .cat-hero .lead{font-size:15px;}
  .section{padding:52px 0;}
  .section-head h2,.faq-side h2{font-size:24px;}
  .timeline{padding-left:32px;}
  .step-index{left:-32px;width:28px;height:28px;font-size:12px;}
  .timeline::before{left:13px;}
  .step h3{font-size:18px;}
  .cta-block{padding:28px 22px;border-radius:var(--radius-md);}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .faq-q{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --brand:#0FB98A;
  --brand-deep:#0CA377;
  --brand-soft:rgba(15,185,138,.10);
  --violet:#6C4CFF;
  --coral:#FF5C39;
  --ink:#0E1113;
  --bg:#F5F7F5;
  --card:#FFFFFF;
  --line:#E4E8E4;
  --line-soft:#EDF1EE;
  --text:#1B211F;
  --muted:#5C6763;
  --disabled:#A9B2AE;
  --l1:#9AA5A0;
  --l2:#0FB98A;
  --l3:#6C4CFF;
  --r-btn:999px;
  --r-card:16px;
  --r-lg:24px;
  --r-sm:12px;
  --shadow:0 1px 2px rgba(14,17,19,.04),0 12px 32px -12px rgba(14,17,19,.12);
  --shadow-hover:0 2px 6px rgba(14,17,19,.06),0 22px 42px -16px rgba(14,17,19,.20);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:.26s;
  --container:1200px;
  --num-feat:"tnum" 1,"lnum" 1;
}
*,*::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","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;object-fit:cover}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease),opacity var(--dur) var(--ease)}
a:hover{color:var(--brand-deep)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.16}
h1{font-size:32px}
h2{font-size:24px}
h3{font-size:18px;font-weight:700}
h4{font-size:14px;font-weight:600;letter-spacing:0}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 16px}
.section{padding:56px 0}
.section-tight{padding:40px 0}
.section-head{margin-bottom:28px;display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}
.section-head p{color:var(--muted);font-size:14px;max-width:640px;margin-top:10px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--brand-deep);text-transform:uppercase;margin-bottom:12px}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand)}
.num{font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ============ 悬浮胶囊导航 ============ */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:80;padding:0 16px;transition:top var(--dur) var(--ease)}
.navbar{
  max-width:var(--container);margin:0 auto;height:64px;display:flex;align-items:center;gap:16px;
  padding:0 12px 0 18px;background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow);
  transition:box-shadow var(--dur) var(--ease),height var(--dur) var(--ease);
}
.site-header.is-scrolled .navbar{box-shadow:var(--shadow-hover)}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;gap:3px;width:26px;height:26px;flex:0 0 auto}
.brand-mark i{flex:1;border-radius:2px;background:linear-gradient(180deg,var(--brand),var(--violet))}
.brand-mark i:nth-child(1){opacity:.45}
.brand-mark i:nth-child(2){opacity:.68}
.brand-mark i:nth-child(3){opacity:.86}
.brand-text{display:flex;flex-direction:column;line-height:1.06}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.03em;color:var(--ink)}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:.22em;color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{position:relative;padding:9px 14px;border-radius:999px;font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left center;transition:transform var(--dur) var(--ease)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--brand-deep);font-weight:600;background:var(--brand-soft)}
.nav-links a.is-active::after{transform:scaleX(0)}
.nav-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);background:var(--brand);color:#fff;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-cta:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px -10px rgba(15,185,138,.7)}
.nav-cta:active{transform:translateY(0);box-shadow:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:50%;align-items:center;justify-content:center;color:var(--ink);font-size:18px;background:var(--bg);position:relative;z-index:92}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand-deep)}

/* ============ 通用按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;letter-spacing:.01em;transition:all var(--dur) var(--ease)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px -14px rgba(15,185,138,.85)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:rgba(15,185,138,.45)}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.32)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.6)}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-deep);border-bottom:1px solid transparent;padding-bottom:2px}
.btn-text:hover{border-bottom-color:var(--brand);color:var(--brand-deep)}

/* ============ 面包屑 ============ */
.breadcrumb{padding:104px 0 0;font-size:13px;color:var(--muted)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li:not(:last-child)::after{content:"/";color:var(--disabled)}
.breadcrumb a:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px}
.breadcrumb [aria-current="page"]{color:var(--brand-deep);font-weight:600}

/* ============ Hero ============ */
.hero{padding:24px 0 0}
.hero-card{
  position:relative;overflow:hidden;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow);padding:32px 24px;
  display:grid;grid-template-columns:1fr;gap:28px;
}
.hero-card::before{
  content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center right;opacity:.07;pointer-events:none;
}
.hero-card::after{
  content:"";position:absolute;top:0;right:0;width:220px;height:100%;
  background-image:repeating-linear-gradient(135deg,rgba(14,17,19,.05) 0 1px,transparent 1px 10px);
  opacity:.6;pointer-events:none;
}
.hero-main{position:relative;z-index:1}
.hero h1{font-size:32px;line-height:1.14;margin-bottom:16px;max-width:15em}
.hero h1 span{display:block;font-size:15px;font-weight:600;letter-spacing:.06em;color:var(--brand-deep);margin-bottom:10px}
.hero-sub{color:var(--muted);font-size:15px;max-width:40em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-btn);font-size:12px;font-weight:600;border:1px solid var(--line);color:var(--muted);background:var(--bg)}
.chip-brand{border-color:rgba(15,185,138,.35);color:var(--brand-deep);background:var(--brand-soft)}
.chip-violet{border-color:rgba(108,76,255,.3);color:var(--violet);background:rgba(108,76,255,.08)}
.hero-aside{
  position:relative;z-index:1;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;display:flex;flex-direction:column;gap:14px;align-self:start;
}
.hero-aside .badge-line{display:flex;align-items:center;gap:10px}
.badge-dot{width:34px;height:34px;border-radius:10px;background:var(--card);border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--brand-deep);font-size:14px}
.hero-aside strong{font-size:15px;color:var(--ink);font-weight:700}
.hero-aside p{font-size:14px;color:var(--muted);line-height:1.75}
.aside-divider{height:1px;background:var(--line)}
.aside-list{display:flex;flex-direction:column;gap:10px;font-size:13px;color:var(--muted)}
.aside-list li{display:flex;gap:8px;align-items:flex-start}
.aside-list li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--brand);margin-top:8px;flex:0 0 auto}

/* ============ 数据小卡 ============ */
.stats{display:grid;grid-template-columns:1fr;gap:16px}
.stat{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.stat:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(15,185,138,.4)}
.stat-label{font-size:13px;color:var(--muted);font-weight:600;letter-spacing:.02em;display:flex;align-items:center;gap:8px}
.stat-label i{color:var(--brand)}
.stat-value{font-size:40px;font-weight:800;color:var(--ink);line-height:1.1;margin-top:12px;font-variant-numeric:tabular-nums;letter-spacing:.02em;display:flex;align-items:baseline;gap:8px}
.stat-value small{font-size:14px;font-weight:600;color:var(--muted);letter-spacing:0}
.stat-note{font-size:13px;color:var(--muted);margin-top:10px;padding-top:14px;border-top:1px solid var(--line-soft)}

/* ============ 双栏分区 ============ */
.two-col{display:grid;grid-template-columns:1fr;gap:20px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px}
.panel-head{display:flex;align-items:center;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:6px}
.panel-icon{width:38px;height:38px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;background:var(--brand-soft);color:var(--brand-deep);font-size:15px;flex:0 0 auto}
.panel-icon.violet{background:rgba(108,76,255,.1);color:var(--violet)}
.panel-head h3{font-size:17px}
.panel-head span{display:block;font-size:12px;color:var(--muted);font-weight:500;letter-spacing:.02em;margin-top:2px}
.panel-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line-soft)}
.panel-list li:last-child{border-bottom:0;padding-bottom:4px}
.panel-list .idx{font-size:12px;font-weight:700;color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.06em;padding-top:3px;flex:0 0 auto}
.panel-list h4{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:4px;letter-spacing:0}
.panel-list p{font-size:13.5px;color:var(--muted);line-height:1.7}
.mini-tag{display:inline-flex;align-items:center;padding:2px 9px;border-radius:999px;font-size:11px;font-weight:600;border:1px solid var(--line);color:var(--muted);margin-left:8px;vertical-align:middle}
.mini-tag.hot{border-color:rgba(255,92,57,.35);color:var(--coral);background:rgba(255,92,57,.07)}

/* ============ 信息表 ============ */
.table-shell{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.info-table{min-width:860px;width:100%}
.table-row{display:grid;grid-template-columns:1fr 1fr 1fr 1.9fr .8fr;gap:16px;align-items:center;padding:16px 22px;font-size:14px;border-bottom:1px solid var(--line-soft);transition:background-color var(--dur) var(--ease)}
.table-row:last-child{border-bottom:0}
.table-head{background:var(--ink);color:#fff;font-size:12.5px;font-weight:600;letter-spacing:.06em;border-bottom:0}
.table-head span{color:rgba(255,255,255,.72)}
.table-body .table-row:nth-child(odd){background:#FAFBFA}
.table-body .table-row:hover{background:var(--bg)}
.cell-strong{font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.cell-muted{color:var(--muted)}
.tag{display:inline-flex;align-items:center;gap:6px;padding:3px 11px;border-radius:var(--r-btn);font-size:12px;font-weight:600;border:1px solid transparent;white-space:nowrap}
.tag-green{color:var(--brand-deep);background:var(--brand-soft);border-color:rgba(15,185,138,.32)}
.tag-violet{color:var(--violet);background:rgba(108,76,255,.09);border-color:rgba(108,76,255,.28)}
.tag-gray{color:var(--muted);background:var(--bg);border-color:var(--line)}
.tag-coral{color:var(--coral);background:rgba(255,92,57,.08);border-color:rgba(255,92,57,.3)}
.table-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:16px 22px;background:#FAFBFA;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}

/* ============ 预览卡 ============ */
.preview-grid{display:grid;grid-template-columns:1fr;gap:20px}
.preview-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.preview-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.preview-media{position:relative;overflow:hidden;background:var(--line-soft)}
.preview-media img{width:100%;aspect-ratio:16/9;transition:transform .6s var(--ease)}
.preview-card:hover .preview-media img{transform:scale(1.03)}
.preview-cat{position:absolute;left:14px;top:14px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;color:var(--brand-deep);background:rgba(255,255,255,.92);border:1px solid rgba(15,185,138,.4)}
.preview-body{padding:22px 22px 24px}
.preview-body h3{font-size:18px;margin-bottom:10px}
.preview-body p{font-size:14px;color:var(--muted);line-height:1.75}
.preview-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line-soft);font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:24px}
.faq-intro h2{margin-bottom:12px}
.faq-intro p{font-size:14px;color:var(--muted)}
.faq-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:6px 22px}
.faq-item{border-bottom:1px solid var(--line-soft)}
.faq-item:last-child{border-bottom:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 0 22px 0;text-align:left;font-size:16px;font-weight:600;color:var(--ink);transition:color var(--dur) var(--ease),padding var(--dur) var(--ease)}
.faq-q:hover{color:var(--brand-deep)}
.faq-item.is-open .faq-q{color:var(--brand-deep);padding-left:14px;border-left:3px solid var(--brand)}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a-inner{padding:0 0 22px 14px;background:transparent}
.faq-a-inner p{font-size:15px;line-height:1.9;color:var(--muted);background:#FAFBFA;border-radius:var(--r-sm);padding:16px 18px}

/* ============ CTA ============ */
.cta{
  position:relative;overflow:hidden;background:var(--ink);border-radius:var(--r-lg);
  padding:36px 24px;display:flex;flex-direction:column;gap:26px;
}
.cta::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 12px);pointer-events:none}
.cta-inner{position:relative;z-index:1;display:flex;flex-direction:column;gap:26px}
.cta h2{color:#fff;font-size:26px;margin-bottom:12px}
.cta p{color:rgba(255,255,255,.68);font-size:14.5px;max-width:46em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-stats{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12)}
.cta-stat{font-size:13px;color:rgba(255,255,255,.62);display:inline-flex;align-items:center;gap:8px}
.cta-stat b{color:#fff;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.cta-stat i{color:var(--brand)}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg);border-top:1px solid var(--line);margin-top:56px;padding:48px 0 28px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.8;max-width:34em}
.footer-domain{display:inline-block;margin-top:12px;font-size:12.5px;letter-spacing:.06em;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:999px;padding:4px 12px;font-variant-numeric:tabular-nums}
.footer-col h4{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px}
.footer-col li{margin-bottom:10px;font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{margin-top:32px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:var(--muted)}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:16px;bottom:20px;z-index:70;display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 18px;border-radius:999px;background:var(--card);border:1px solid var(--line);
  color:var(--ink);font-size:13px;font-weight:600;box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:rgba(15,185,138,.4)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:translateY(0)}

/* ============ 断点 ============ */
@media (min-width:640px){
  .container{padding:0 24px}
  h1{font-size:40px}
  .hero h1{font-size:42px}
  h2{font-size:28px}
  .hero-card{padding:44px 36px}
  .stats{grid-template-columns:repeat(3,1fr)}
  .preview-grid{grid-template-columns:repeat(2,1fr)}
  .cta{padding:48px 40px}
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between}
  .cta-actions{flex:0 0 auto}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}
}
@media (min-width:1024px){
  body{font-size:16px}
  h1{font-size:56px}
  h2{font-size:36px}
  h3{font-size:20px}
  .section{padding:96px 0}
  .section-tight{padding:56px 0}
  .section-head{margin-bottom:40px}
  .hero h1{font-size:52px}
  .hero-card{grid-template-columns:1.55fr .85fr;padding:56px;gap:48px}
  .hero-aside{padding:28px}
  .breadcrumb{padding-top:118px}
  .two-col{grid-template-columns:1fr 1fr;gap:24px}
  .panel{padding:32px}
  .faq-wrap{grid-template-columns:1fr 1.5fr;gap:48px;align-items:start}
  .faq-list{padding:8px 28px}
  .cta{padding:64px}
  .cta h2{font-size:32px}
  .site-footer{margin-top:96px;padding:64px 0 32px}
  .to-top{right:32px;bottom:32px}
}
@media (min-width:1440px){
  :root{--container:1280px}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .nav-cta{padding:0 16px;font-size:13.5px;min-height:42px}
  .brand-text em{display:none}
  .nav-links{
    position:fixed;top:0;left:0;right:0;bottom:0;z-index:90;
    flex-direction:column;align-items:stretch;justify-content:center;gap:6px;
    margin:0;padding:96px 28px 40px;background:#fff;display:none;
  }
  .site-header.is-open .nav-links{display:flex}
  .nav-links a{font-size:18px;padding:16px 18px;border-radius:14px;color:var(--ink)}
  .nav-links a::after{display:none}
  .nav-links a.is-active{background:var(--brand-soft);color:var(--brand-deep)}
}
@media (max-width:520px){
  .hero-aside{padding:20px}
  .stat-value{font-size:34px}
  .table-row{grid-template-columns:1fr 1fr 1fr 1.7fr .8fr;font-size:13px;padding:14px 18px}
  .footer-bottom{flex-direction:column}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
  .to-top{padding:0 14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --brand:#0FB98A;
  --brand-dark:#0CA477;
  --brand-soft:rgba(15,185,138,.08);
  --brand-soft-2:rgba(15,185,138,.16);
  --accent:#6C4CFF;
  --accent-soft:rgba(108,76,255,.1);
  --coral:#FF5C39;
  --ink:#0E1113;
  --text:#1B211F;
  --muted:#5C6763;
  --disabled:#A9B2AE;
  --bg:#F5F7F5;
  --bg-soft:#FAFBFA;
  --card:#FFFFFF;
  --line:#E4E8E4;
  --l1:#9AA5A0;
  --l2:#0FB98A;
  --l3:#6C4CFF;
  --r-pill:999px;
  --r-card:16px;
  --r-block:24px;
  --r-input:12px;
  --shadow:0 1px 2px rgba(14,17,19,.04),0 12px 32px -12px rgba(14,17,19,.12);
  --shadow-hover:0 2px 4px rgba(14,17,19,.06),0 20px 42px -14px rgba(14,17,19,.2);
  --ease:cubic-bezier(.22,.61,.36,1);
  --gap:24px;
  --section-y:96px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;object-fit:cover}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:750;letter-spacing:-.02em;line-height:1.16;color:var(--text)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- header / nav ---------- */
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:80;
  padding:0 16px;
  transition:padding .3s var(--ease);
}
.navbar{
  max-width:1200px;margin:0 auto;
  height:64px;
  display:flex;align-items:center;gap:18px;
  padding:0 14px 0 20px;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow);
  transition:height .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled .navbar{height:58px;box-shadow:var(--shadow-hover)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{display:grid;grid-template-columns:repeat(2,1fr);gap:3px}
.brand-mark i{width:6px;height:6px;border-radius:2px;background:var(--brand);display:block}
.brand-mark i:nth-child(2){background:var(--accent)}
.brand-mark i:nth-child(4){background:var(--ink);opacity:.7}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:.34em;color:var(--muted);margin-top:2px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{
  position:relative;
  padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--muted);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--text);font-weight:600;background:var(--brand-soft)}
.nav-links a.is-active::after{transform:scaleX(0)}
.nav-cta{
  flex-shrink:0;
  padding:10px 20px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 8px 20px -10px rgba(15,185,138,.9);
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-cta:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 26px -12px rgba(15,185,138,.95)}
.nav-cta:active{transform:translateY(0);box-shadow:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text);font-size:18px;
  transition:background .2s var(--ease);
}
.nav-toggle:hover{background:var(--brand-soft)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:12px 26px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  background:var(--brand);color:#fff;
  box-shadow:0 10px 24px -12px rgba(15,185,138,.9);
}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(15,185,138,.95)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{border:1px solid var(--line);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-dark)}
.btn-light{border:1px solid rgba(255,255,255,.28);color:#fff;background:transparent}
.btn-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5)}
.btn-block{width:100%}

/* ---------- generic ---------- */
main{padding-top:118px}
.section{padding:var(--section-y) 0}
.section-soft{background:var(--bg-soft)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:36px}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;color:var(--brand-dark);
  text-transform:uppercase;font-weight:600;margin-bottom:16px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--brand)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-brand{background:var(--brand-soft);color:var(--brand-dark);border:1px solid rgba(15,185,138,.28)}
.badge-accent{background:var(--accent-soft);color:var(--accent)}
.badge-soft{background:#EDF1EE;color:var(--muted)}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:28px;
}
.breadcrumb a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--brand-dark);font-weight:600}

/* ---------- hero ---------- */
.page-hero{
  padding:20px 0 var(--section-y);
  position:relative;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(14,17,19,.09) 1px,transparent 1px);
  background-size:18px 18px;
  opacity:.035;
}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.hero-copy h1{font-size:56px;font-weight:800;letter-spacing:-.03em;margin:18px 0 0}
.hero-copy h1 span{display:block;font-size:15px;font-weight:600;letter-spacing:.06em;color:var(--muted);margin-top:14px}
.hero-sub{margin-top:18px;font-size:17px;color:var(--muted);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-points{margin-top:36px;display:grid;gap:12px}
.hero-points li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--muted)}
.hero-points i{color:var(--brand);margin-top:6px;font-size:13px}
.hero-side{position:relative}
.hero-side img{
  width:100%;aspect-ratio:4/3;border-radius:var(--r-card);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.hero-badge-card{
  position:absolute;left:20px;bottom:-20px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:14px 18px;box-shadow:var(--shadow);
  display:flex;align-items:center;gap:14px;
}
.hero-badge-card .lvl{
  width:38px;height:38px;border-radius:10px;
  background:var(--ink);border:1px solid var(--brand);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:13px;font-weight:800;
}
.hero-badge-card strong{display:block;font-size:14px}
.hero-badge-card span{font-size:12px;color:var(--muted)}

/* ---------- compare ---------- */
.compare-scroll{
  overflow-x:auto;
  padding:24px 4px 10px;
  -webkit-overflow-scrolling:touch;
}
.compare-table{
  display:grid;grid-template-columns:1.08fr 1fr 1.18fr 1fr;
  gap:16px;min-width:840px;
}
.compare-col{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 20px 20px;display:flex;flex-direction:column;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.compare-col:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.compare-col.is-spec{background:transparent;border-style:dashed}
.compare-col.is-featured{
  position:relative;border:2px solid var(--brand);
  transform:translateY(-12px);box-shadow:var(--shadow);
}
.compare-col.is-featured:hover{transform:translateY(-14px)}
.col-flag{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--coral);color:#fff;font-size:12px;font-weight:600;
  padding:3px 14px;border-radius:var(--r-pill);white-space:nowrap;
}
.col-head{padding-bottom:18px;border-bottom:1px solid var(--line)}
.col-head .dot{width:26px;height:6px;border-radius:3px;display:block;margin-bottom:14px}
.dot-l1{background:var(--l1)}
.dot-l2{background:var(--l2)}
.dot-l3{background:var(--l3)}
.col-head h3{font-size:20px}
.col-head .price{margin-top:6px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.col-body{margin-top:6px;flex:1}
.col-body li{
  display:flex;align-items:flex-start;gap:10px;
  padding:13px 8px;margin:0 -8px;border-radius:10px;
  font-size:14px;color:var(--muted);
  border-bottom:1px dashed var(--line);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.col-body li:last-child{border-bottom:0}
.col-body li:hover{background:var(--bg);color:var(--text)}
.col-body i{margin-top:5px;font-size:12px;color:var(--brand)}
.col-body li.is-off i{color:var(--disabled)}
.col-body li.is-off{color:var(--disabled)}
.compare-note{
  margin-top:22px;display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
}
.compare-note p{font-size:13px;color:var(--muted);max-width:640px}
.scroll-hint{font-size:13px;color:var(--muted);display:none}

/* ---------- two column cards ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap)}
.insight-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:36px 32px;box-shadow:var(--shadow);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.insight-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.insight-card h3{font-size:20px;margin-top:16px}
.insight-card > p{margin-top:12px;color:var(--muted);font-size:15px}
.step-list{margin-top:24px;display:grid;gap:16px}
.step-list li{display:flex;gap:14px;align-items:flex-start}
.step-list .idx{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  display:flex;align-items:center;justify-content:center;
}
.step-list strong{display:block;font-size:15px;font-weight:600}
.step-list span{font-size:14px;color:var(--muted)}
.insight-card.is-accent .idx{background:var(--accent-soft);color:var(--accent)}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split img{width:100%;aspect-ratio:4/3;border-radius:var(--r-card);border:1px solid var(--line);box-shadow:var(--shadow)}
.signal-list{margin-top:28px;display:grid;gap:14px}
.signal-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:var(--card);
  font-size:15px;color:var(--muted);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.signal-list li:hover{border-color:var(--brand);transform:translateX(3px)}
.signal-list i{color:var(--coral);margin-top:6px;font-size:12px}
.signal-list b{color:var(--text);font-weight:600}

/* ---------- form ---------- */
.form-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-block);
  padding:44px;box-shadow:var(--shadow);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:30px}
.field{display:flex;flex-direction:column;gap:8px}
.field.is-wide{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600}
.field label .req{color:var(--coral);margin-left:4px}
.field input,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;
  border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:132px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--disabled)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(15,185,138,.14);
}
.field .hint{font-size:13px;color:var(--muted)}
.field.is-error input,.field.is-error textarea{border-color:var(--coral);box-shadow:0 0 0 4px rgba(255,92,57,.12)}
.field.is-error .hint{color:var(--coral)}
.form-foot{
  margin-top:28px;display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
}
.form-foot .note{font-size:13px;color:var(--muted);max-width:440px}
.form-status{
  margin-top:20px;padding:14px 18px;border-radius:12px;
  background:var(--brand-soft);border:1px solid rgba(15,185,138,.26);
  color:var(--brand-dark);font-size:14px;display:none;
}
.form-status.is-visible{display:block}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:56px;align-items:start}
.faq-aside h2{font-size:36px}
.faq-aside p{margin-top:16px;color:var(--muted);font-size:15px}
.faq-aside .btn{margin-top:26px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;min-height:64px;padding:18px 4px 18px 18px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  text-align:left;font-size:16px;font-weight:600;
  position:relative;
  transition:color .2s var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--brand);border-radius:2px;
  transition:height .28s var(--ease);
}
.faq-q:hover{color:var(--brand-dark)}
.faq-item.is-open .faq-q::before{height:26px}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:0;top:7px;width:16px;height:2px;border-radius:2px;background:var(--muted);
  transition:transform .28s var(--ease),background .2s var(--ease);
}
.faq-icon::after{transform:rotate(90deg)}
.faq-item.is-open .faq-icon::after{transform:rotate(0)}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a-inner{
  padding:4px 4px 24px 18px;
  background:var(--bg-soft);
  font-size:15px;line-height:1.9;color:var(--muted);
}

/* ---------- cta ---------- */
.cta-block{
  position:relative;overflow:hidden;
  background:var(--ink);border-radius:var(--r-block);
  padding:64px;display:flex;gap:40px;align-items:center;justify-content:space-between;
}
.cta-block::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.09) 0 1px,transparent 1px 9px);
  opacity:.5;
}
.cta-copy{position:relative;max-width:620px}
.cta-copy h2{color:#fff;font-size:34px}
.cta-copy p{margin-top:14px;color:rgba(255,255,255,.72);font-size:16px}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px}
.cta-block .btn-primary{box-shadow:none}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg);border-top:1px solid var(--line);
  margin-top:var(--section-y);padding:72px 0 32px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--muted);max-width:340px}
.footer-domain{
  display:inline-block;margin-top:16px;font-size:13px;color:var(--muted);
  padding:4px 12px;border:1px solid var(--line);border-radius:var(--r-pill);
  font-variant-numeric:tabular-nums;
}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:18px}
.footer-col ul{display:grid;gap:12px}
.footer-col li{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--brand-dark)}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--muted);
}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:auto;height:44px;padding:0 18px;
  display:inline-flex;align-items:center;gap:8px;
  border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);
  color:var(--muted);font-size:14px;box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:var(--brand-dark);border-color:var(--brand)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero-copy h1{font-size:46px}
  .section-head h2,.faq-aside h2{font-size:32px}
}
@media (max-width:1023px){
  :root{--section-y:72px}
  main{padding-top:106px}
  .nav-links{
    display:none;
  }
  .nav-toggle{display:inline-flex}
  .navbar{gap:10px;padding:0 10px 0 16px}
  .nav-cta{padding:9px 16px;font-size:14px}
  body.nav-open .nav-links{
    display:flex;position:fixed;left:16px;right:16px;top:92px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border:1px solid var(--line);border-radius:20px;
    padding:14px;box-shadow:var(--shadow-hover);
  }
  body.nav-open .nav-links a{min-height:56px;display:flex;align-items:center;font-size:18px;padding:0 18px}
  body.nav-open .nav-links a::after{display:none}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-side{order:-1}
  .hero-copy h1{font-size:38px}
  .hero-sub{font-size:16px}
  .compare-scroll{scroll-snap-type:x mandatory}
  .scroll-hint{display:block}
  .split{grid-template-columns:1fr;gap:36px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-block{flex-direction:column;align-items:flex-start;padding:44px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--section-y:56px}
  .container{padding:0 16px}
  .hero-copy h1{font-size:32px}
  .section-head h2,.faq-aside h2,.cta-copy h2{font-size:24px}
  .two-col{grid-template-columns:1fr}
  .form-panel{padding:28px 22px}
  .form-grid{grid-template-columns:1fr;gap:18px}
  .insight-card{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr}
  .cta-block{padding:32px 24px;border-radius:20px}
  .compare-col.is-featured{transform:none}
  .compare-col.is-featured:hover{transform:translateY(-2px)}
  .form-foot .btn{width:100%}
  .to-top{right:16px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}