/* roulang page: index */
:root{
  --bg-0:#060A12;
  --bg-1:#0A1119;
  --panel:#0E1723;
  --panel-deep:#0C141F;
  --primary:#16B9C6;
  --primary-deep:#0E97A4;
  --primary-soft:rgba(22,185,198,.14);
  --accent:#FF8A3D;
  --text-1:#E6F0F4;
  --text-2:#9AAEBE;
  --text-3:#62798C;
  --ok:#34D399;
  --warn:#FBBF24;
  --err:#F87171;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass-fill:linear-gradient(158deg,rgba(255,255,255,.075),rgba(255,255,255,.018));
  --r-card:18px;
  --r-panel:20px;
  --r-img:14px;
  --r-pill:999px;
  --sh-card:0 18px 40px rgba(0,0,0,.45);
  --sh-card-hover:0 24px 56px rgba(0,0,0,.55);
  --sh-glow:0 8px 24px rgba(255,138,61,.32);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t-fast:180ms;
  --t-mid:260ms;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg-0);
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color var(--t-fast) var(--ease);}
a:hover{color:var(--primary);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.01em;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;position:relative;}
.section--alt{background:var(--bg-1);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px;}
.section-head h2{font-size:clamp(24px,2.8vw,34px);}
.section-head .eyebrow{
  display:block;font-size:12px;letter-spacing:.14em;color:var(--primary);
  text-transform:uppercase;margin-bottom:12px;font-weight:600;
}
.section-head p{color:var(--text-2);font-size:15px;max-width:520px;margin:12px 0 0;}
.link-more{color:var(--primary);font-size:15px;font-weight:600;white-space:nowrap;border-bottom:1px solid transparent;padding-bottom:2px;}
.link-more:hover{color:var(--accent);border-bottom-color:var(--accent);}
.text-link{color:var(--primary);font-weight:600;border-bottom:1px solid rgba(22,185,198,.5);padding-bottom:2px;text-underline-offset:4px;}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent);}

/* 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;letter-spacing:.02em;
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-mid) var(--ease),background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.btn-primary{background:var(--accent);color:#140A02;box-shadow:var(--sh-glow);}
.btn-primary:hover{background:#FF9C5C;color:#140A02;transform:translateY(-1px);box-shadow:0 12px 30px rgba(255,138,61,.42);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 3px 10px rgba(0,0,0,.28);}
.btn-ghost{color:var(--primary);border:1px solid var(--primary);background:transparent;}
.btn-ghost:hover{background:rgba(22,185,198,.08);color:var(--primary);transform:translateY(-1px);}
.btn-ghost:active{background:rgba(22,185,198,.16);}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px;}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.04em;line-height:1.6;
  background:var(--primary-soft);color:var(--primary);
  border:1px solid rgba(22,185,198,.25);
}
.badge-ok{background:rgba(52,211,153,.14);color:var(--ok);border-color:rgba(52,211,153,.3);}
.badge-warn{background:rgba(251,191,36,.14);color:var(--warn);border-color:rgba(251,191,36,.3);}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:120;
  background:transparent;
  transition:background var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(7,12,20,.82);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);
  border:1px solid rgba(22,185,198,.35);
}
.brand-mark svg{width:18px;height:18px;stroke:var(--primary);fill:none;stroke-width:1.8;}
.brand-text{display:flex;align-items:baseline;gap:4px;font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--text-1);}
.brand-text small{font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.08em;}
.brand:hover .brand-text{color:var(--primary);}

.nav-search{
  position:relative;flex:1 1 auto;max-width:46%;min-width:240px;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px;
  background:var(--panel-deep);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(22,185,198,.18);}
.nav-search svg{width:17px;height:17px;stroke:var(--primary);fill:none;stroke-width:1.9;flex-shrink:0;}
.nav-search input{
  flex:1;border:none;background:transparent;outline:none;
  font-size:14px;color:var(--text-1);min-width:0;
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search kbd{
  font-size:11px;color:var(--text-3);border:1px solid var(--line);
  padding:1px 7px;border-radius:6px;font-family:inherit;flex-shrink:0;
}
.search-suggest{
  position:absolute;left:0;right:0;top:calc(100% + 10px);
  background:var(--glass-fill);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  max-height:360px;overflow:auto;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity var(--t-fast) var(--ease),transform var(--t-fast) var(--ease),visibility var(--t-fast);
  padding:8px;
}
.nav-search:focus-within .search-suggest{opacity:1;visibility:visible;transform:translateY(0);}
.search-suggest li a{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.search-suggest li a:hover{background:rgba(22,185,198,.08);color:var(--text-1);border-left-color:var(--primary);}
.search-suggest li a span{font-size:12px;color:var(--text-3);margin-left:auto;}

.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-links a{
  position:relative;font-size:14px;color:var(--text-2);
  padding:6px 0;white-space:nowrap;
  transition:color var(--t-fast) var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t-mid) var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--primary);}
.nav-links a.active::after{transform:scaleX(1);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--glass-fill);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.mobile-search{display:none;padding:0 24px 14px;}
.mobile-search .nav-search{max-width:none;min-width:0;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity var(--t-mid) var(--ease),visibility var(--t-mid);
  z-index:190;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(320px,86vw);z-index:200;
  background:var(--glass-fill);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform var(--t-mid) var(--ease);
  padding:24px 20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--text-2);font-size:20px;line-height:1;}
.drawer nav a{
  display:flex;align-items:center;min-height:48px;
  font-size:15px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.drawer nav a.active,.drawer nav a:hover{color:var(--primary);}
.drawer .btn{margin-top:20px;width:100%;}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  min-height:88vh;display:flex;align-items:center;
  padding:64px 0 72px;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,12,20,.94) 0%,rgba(7,12,20,.72) 55%,rgba(7,12,20,.35) 100%);
}
.hero::before{
  content:"";position:absolute;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,185,198,.18),transparent 68%);
  top:-160px;left:-120px;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.12),transparent 70%);
  bottom:-200px;right:-80px;pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;width:100%;
}
.hero-copy{grid-column:span 7;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--primary-soft);border:1px solid rgba(22,185,198,.3);
  color:var(--primary);font-size:12px;letter-spacing:.08em;margin-bottom:22px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block;}
.hero h1{
  font-size:clamp(30px,4.2vw,54px);line-height:1.22;font-weight:700;
  letter-spacing:.01em;margin-bottom:20px;max-width:14em;
}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{font-size:17px;color:var(--text-2);max-width:30em;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.hero-metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  border-top:1px solid var(--line);padding-top:26px;
}
.hero-metrics .m-num{font-size:30px;font-weight:700;color:var(--primary);line-height:1.2;}
.hero-metrics .m-num sup{font-size:14px;margin-left:2px;color:var(--text-2);font-weight:500;}
.hero-metrics .m-label{font-size:12px;color:var(--text-3);letter-spacing:.04em;margin-top:6px;}

.hero-side{grid-column:span 5;display:flex;justify-content:flex-end;}
.hud-card{
  width:100%;max-width:400px;
  background:var(--glass-fill);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-panel);
  box-shadow:var(--sh-card);padding:22px;
  position:relative;
}
.hud-card::before{
  content:"";position:absolute;top:0;left:22px;right:22px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.5),transparent);
}
.hud-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.hud-head h3{font-size:15px;font-weight:600;}
.hud-head span{font-size:12px;color:var(--text-3);}
.hud-row{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.06);font-size:13px;}
.hud-row:last-of-type{border-bottom:none;}
.hud-row span:first-child{color:var(--text-2);}
.hud-row span:last-child{color:var(--text-1);font-weight:600;}
.hud-row .ok{color:var(--ok);}
.hud-row .warn{color:var(--warn);}
.hud-bar{height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:8px;}
.hud-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary-deep),var(--primary));}
.hud-bar.alt i{background:linear-gradient(90deg,var(--accent),#FFB27A);}
.hud-foot{margin-top:18px;display:flex;gap:10px;}

/* 卖点非对称 */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.f-card{
  position:relative;overflow:hidden;
  background:var(--glass-fill);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-card);
  transition:transform var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease);
}
.f-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,185,198,.9),transparent);
  opacity:0;transition:opacity var(--t-mid) var(--ease);
}
.f-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover),0 0 0 1px rgba(22,185,198,.35);border-color:rgba(22,185,198,.4);}
.f-card:hover::before{opacity:1;}
.f-card .f-index{
  font-size:56px;font-weight:800;line-height:1;
  color:rgba(22,185,198,.12);letter-spacing:-.02em;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.f-card .f-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);border:1px solid rgba(22,185,198,.3);margin-bottom:18px;
}
.f-card .f-icon svg{width:22px;height:22px;stroke:var(--primary);fill:none;stroke-width:1.7;}
.f-card h3{font-size:21px;margin-bottom:12px;}
.f-card p{font-size:15px;color:var(--text-2);max-width:34em;}
.f-card .text-link{display:inline-block;margin-top:18px;font-size:14px;}
.f-card--lead{grid-column:span 6;grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between;padding:38px;}
.f-card--lead h3{font-size:26px;}
.f-card--lead .f-index{font-size:78px;}
.f-card--lead .f-visual{
  margin-top:26px;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);
}
.f-card--lead .f-visual img{width:100%;height:190px;object-fit:cover;border-radius:0;transition:transform var(--t-mid) var(--ease);}
.f-card--lead:hover .f-visual img{transform:scale(1.04);}
.f-card--stack{grid-column:span 6;}
.f-card-stack{grid-column:span 6;display:grid;gap:24px;}

/* 场景演示 */
.demo-grid{display:grid;grid-template-columns:280px 1fr;gap:32px;align-items:start;}
.demo-tabs{display:flex;flex-direction:column;gap:10px;}
.demo-tab{
  display:block;text-align:left;width:100%;
  padding:16px 18px;border-radius:14px;
  border:1px solid transparent;border-left:3px solid transparent;
  color:var(--text-3);font-size:15px;font-weight:600;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.demo-tab small{display:block;font-size:12px;font-weight:400;color:var(--text-3);margin-top:4px;}
.demo-tab:hover{color:var(--text-1);background:rgba(255,255,255,.03);}
.demo-tab.active{
  background:var(--glass-fill);color:var(--text-1);
  border-color:var(--line);border-left-color:var(--primary);
}
.demo-tab.active small{color:var(--text-2);}
.demo-panels{position:relative;}
.demo-panel{
  display:none;
  border:1px solid var(--line);border-radius:var(--r-panel);
  overflow:hidden;background:var(--panel);
  box-shadow:var(--sh-card);
}
.demo-panel.active{display:block;animation:fadeUp var(--t-mid) var(--ease);}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}
.demo-media{position:relative;aspect-ratio:16/10;overflow:hidden;}
.demo-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.demo-media .demo-tag{position:absolute;left:16px;top:16px;}
.demo-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 20px;
  background:var(--glass-fill);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  backdrop-filter:blur(12px) saturate(140%);
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.demo-bar strong{color:var(--text-1);font-weight:600;}
.demo-bar .dots{display:flex;gap:6px;}
.demo-bar .dots i{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.18);display:block;}
.demo-bar .dots i.on{background:var(--primary);}

/* 能力矩阵 */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cap-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;transition:border-color var(--t-mid) var(--ease),transform var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease);
}
.cap-item:hover{border-color:rgba(22,185,198,.4);transform:translateY(-4px);box-shadow:var(--sh-card);}
.cap-item .cap-top{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.cap-item .cap-top svg{width:20px;height:20px;stroke:var(--primary);fill:none;stroke-width:1.8;flex-shrink:0;}
.cap-item h3{font-size:17px;}
.cap-item p{font-size:14px;color:var(--text-2);}
.cap-item .cap-meta{margin-top:14px;font-size:12px;color:var(--text-3);display:flex;gap:14px;}

/* 社会认同 */
.logo-wall{
  display:grid;grid-template-columns:repeat(8,1fr);gap:18px;
  padding:26px 0 34px;border-bottom:1px solid var(--line);margin-bottom:40px;
}
.logo-wall span{
  display:flex;align-items:center;justify-content:center;
  height:46px;font-size:14px;font-weight:600;letter-spacing:.06em;
  color:#C7D5DE;opacity:.55;
  border:1px solid rgba(255,255,255,.08);border-radius:12px;
  transition:opacity var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease);
}
.logo-wall span:hover{opacity:1;border-color:rgba(22,185,198,.35);}
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:44px;}
.quote{
  position:relative;
  background:var(--glass-fill);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);border-left:1px solid rgba(22,185,198,.6);
  border-radius:var(--r-card);padding:28px 30px;box-shadow:var(--sh-card);
}
.quote .q-mark{font-size:42px;line-height:1;color:rgba(22,185,198,.35);font-weight:800;display:block;margin-bottom:6px;}
.quote p{font-size:15px;color:var(--text-2);margin-bottom:18px;}
.quote .q-who{font-size:12px;color:var(--text-3);letter-spacing:.04em;}
.stats-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-panel);
  overflow:hidden;
}
.stats-bar > div{padding:28px 24px;border-right:1px solid var(--line);}
.stats-bar > div:last-child{border-right:none;}
.stats-bar .s-num{font-size:32px;font-weight:700;color:var(--primary);line-height:1.2;font-variant-numeric:tabular-nums;}
.stats-bar .s-num sup{font-size:14px;color:var(--text-2);margin-left:2px;}
.stats-bar .s-label{font-size:13px;color:var(--text-3);margin-top:6px;}

/* 最新信息 */
.news-layout{display:grid;grid-template-columns:1fr 380px;gap:32px;align-items:start;}
.news-lead{
  border-radius:var(--r-card);overflow:hidden;
  background:var(--panel);border:1px solid var(--line);
  box-shadow:var(--sh-card);
  transition:transform var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease);
}
.news-lead:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover),0 0 0 1px rgba(22,185,198,.35);border-color:rgba(22,185,198,.35);}
.news-lead-media{aspect-ratio:16/9;overflow:hidden;}
.news-lead-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform var(--t-mid) var(--ease);}
.news-lead:hover .news-lead-media img{transform:scale(1.04);}
.news-lead-body{padding:24px 26px 26px;}
.news-lead-body h3{font-size:20px;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-lead:hover h3{color:var(--primary);}
.news-lead-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-lead-meta{display:flex;align-items:center;gap:12px;margin-top:16px;font-size:12px;color:var(--text-3);}
.news-lead-meta i{width:3px;height:3px;border-radius:50%;background:var(--text-3);display:block;}
.news-side{display:flex;flex-direction:column;gap:16px;}
.news-item{
  display:grid;grid-template-columns:96px 1fr;gap:16px;align-items:center;
  padding:14px;border-radius:16px;
  background:var(--panel);border:1px solid var(--line);
  transition:border-color var(--t-mid) var(--ease),transform var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease);
}
.news-item:hover{border-color:rgba(22,185,198,.4);transform:translateY(-2px);box-shadow:var(--sh-card);}
.news-item-media{width:96px;height:72px;border-radius:12px;overflow:hidden;}
.news-item-media img{width:100%;height:100%;object-fit:cover;border-radius:12px;transition:transform var(--t-mid) var(--ease);}
.news-item:hover .news-item-media img{transform:scale(1.04);}
.news-item h4{font-size:15px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item:hover h4{color:var(--primary);}
.news-item .news-item-meta{font-size:12px;color:var(--text-3);margin-top:6px;display:flex;gap:10px;}
.empty-card{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--glass-fill);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-card);
  color:var(--text-2);font-size:15px;text-align:center;padding:32px;
}
.empty-card svg{width:34px;height:34px;stroke:var(--primary);fill:none;stroke-width:1.6;}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:16px;
  overflow:hidden;transition:border-color var(--t-mid) var(--ease),background var(--t-mid) var(--ease);
}
.faq-item[open]{border-color:rgba(22,185,198,.4);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text-1);
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--primary);
  transition:transform var(--t-mid) var(--ease);line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{
  padding:0 24px 22px;margin-left:24px;border-left:2px solid var(--primary);
  font-size:15px;color:var(--text-2);line-height:1.85;
}

/* CTA */
.cta-card{
  position:relative;overflow:hidden;
  background:var(--glass-fill);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-panel);
  padding:56px;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
  box-shadow:var(--sh-card);
}
.cta-card::before{
  content:"";position:absolute;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,185,198,.18),transparent 70%);
  top:-220px;left:-80px;pointer-events:none;
}
.cta-card::after{
  content:"";position:absolute;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.14),transparent 70%);
  bottom:-180px;right:-60px;pointer-events:none;
}
.cta-card > *{position:relative;z-index:1;}
.cta-card h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.cta-card p{color:var(--text-2);font-size:15px;max-width:36em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:#060A11;border-top:1px solid var(--line);padding:64px 0 0;position:relative;z-index:2;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-3);max-width:26em;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:18px;letter-spacing:.04em;}
.footer-col a,.footer-col li{display:block;font-size:14px;color:var(--text-3);line-height:2.2;}
.footer-col a:hover{color:var(--primary);}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-3);line-height:2.2;}
.footer-contact svg{width:16px;height:16px;stroke:var(--primary);fill:none;stroke-width:1.7;flex-shrink:0;}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--text-3);
}
.footer-bottom a:hover{color:var(--primary);}

/* 底部转化条 */
.convert-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:150;
  display:flex;align-items:center;gap:18px;
  height:64px;padding:0 24px;
  background:var(--glass-fill);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-top:1px solid rgba(22,185,198,.4);
  transform:translateY(110%);
  transition:transform var(--t-mid) var(--ease);
}
.convert-bar.show{transform:translateY(0);}
.convert-bar .cb-text{font-size:14px;color:var(--text-1);font-weight:600;}
.convert-bar .cb-text span{color:var(--text-3);font-weight:400;margin-left:10px;font-size:13px;}
.convert-bar .cb-actions{margin-left:auto;display:flex;align-items:center;gap:16px;}
.convert-bar .cb-close{
  width:30px;height:30px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--text-3);font-size:16px;line-height:1;flex-shrink:0;
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.convert-bar .cb-close:hover{color:var(--accent);border-color:var(--accent);}
.convert-bar .cb-call{display:none;}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* 断点 1280 */
@media (max-width:1280px){
  .nav-links{gap:18px;}
  .nav-links a{font-size:13px;}
  .logo-wall{grid-template-columns:repeat(6,1fr);}
}
/* 断点 1024 */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-copy,.hero-side{grid-column:span 12;}
  .hero-side{justify-content:flex-start;margin-top:34px;}
  .hud-card{max-width:100%;}
  .f-card--lead,.f-card-stack{grid-column:span 12;}
  .demo-grid{grid-template-columns:1fr;gap:24px;}
  .demo-tabs{flex-direction:row;overflow-x:auto;padding-bottom:6px;}
  .demo-tab{min-width:200px;border-left:none;border-bottom:3px solid transparent;}
  .demo-tab.active{border-left-color:transparent;border-bottom-color:var(--primary);}
  .cap-grid{grid-template-columns:repeat(2,1fr);}
  .news-layout{grid-template-columns:1fr;}
  .stats-bar{grid-template-columns:repeat(2,1fr);}
  .stats-bar > div:nth-child(2){border-right:none;}
  .stats-bar > div:nth-child(1),.stats-bar > div:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
/* 断点 992 */
@media (max-width:992px){
  .nav-wrap{flex-wrap:wrap;height:auto;padding:12px 0;row-gap:0;}
  .nav-links{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .mobile-search{display:block;}
  .hero{min-height:auto;padding:40px 0 56px;}
  .quote-grid{grid-template-columns:1fr;}
  .logo-wall{grid-template-columns:repeat(4,1fr);}
}
/* 断点 768 */
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .hero h1{font-size:clamp(26px,7vw,34px);max-width:none;}
  .hero-sub{font-size:15px;}
  .hero-metrics{grid-template-columns:repeat(2,1fr);gap:18px;}
  .hero-metrics .m-num{font-size:26px;}
  .f-card,.f-card--lead{padding:24px;}
  .f-card--lead .f-index{font-size:56px;}
  .cap-grid{grid-template-columns:1fr;}
  .stats-bar{grid-template-columns:1fr;}
  .stats-bar > div{border-right:none;border-bottom:1px solid var(--line);}
  .stats-bar > div:last-child{border-bottom:none;}
  .cta-card{grid-template-columns:1fr;padding:32px 24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .news-item{grid-template-columns:1fr;}
  .news-item-media{width:100%;height:0;padding-bottom:56.25%;position:relative;}
  .news-item-media img{position:absolute;inset:0;height:100%;}
  .news-side{gap:14px;}
  .logo-wall{grid-template-columns:repeat(2,1fr);gap:12px;}
  .faq-body{margin-left:12px;padding:0 18px 20px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .convert-bar{height:56px;padding:0 14px;gap:10px;}
  .convert-bar .cb-text span{display:none;}
  .convert-bar .cb-text{font-size:13px;}
  .convert-bar .btn{width:60%;justify-content:center;padding:0 12px;font-size:14px;}
  .convert-bar .cb-call{
    display:flex;width:36px;height:36px;border-radius:50%;
    align-items:center;justify-content:center;
    border:1px solid var(--line);color:var(--primary);
  }
  .convert-bar .cb-call svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;}
  .site-footer{padding-bottom:72px;}
}
/* 断点 560 */
@media (max-width:560px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{grid-template-columns:1fr 1fr;}
  .section-head h2{font-size:22px;}
  .demo-tab{min-width:170px;font-size:14px;}
  .brand-text{font-size:17px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .convert-bar .cb-text{max-width:42%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A12;
  --bg-1:#0A1119;
  --panel:#0E1723;
  --panel-2:#0C141F;
  --primary:#16B9C6;
  --primary-deep:#0E97A4;
  --primary-soft:rgba(22,185,198,.14);
  --accent:#FF8A3D;
  --text-1:#E6F0F4;
  --text-2:#9AAEBE;
  --text-3:#62798C;
  --ok:#34D399;
  --warn:#FBBF24;
  --err:#F87171;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.07);
  --glass:linear-gradient(158deg,rgba(255,255,255,.075),rgba(255,255,255,.018));
  --r-card:18px;
  --r-panel:20px;
  --r-img:14px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-card-hover:0 24px 56px rgba(0,0,0,.55),0 0 0 1px rgba(22,185,198,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t-fast:180ms;
  --t-mid:260ms;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.lock{overflow:hidden;}
body.has-bar{padding-bottom:96px;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure{margin:0;}
svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px;}
::selection{background:rgba(22,185,198,.32);}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-mid) var(--ease),background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
  white-space:nowrap;cursor:pointer;
}
.btn-primary{
  background:var(--accent);color:#1B1206;border:1px solid rgba(255,138,61,.6);
  box-shadow:0 8px 24px rgba(255,138,61,.32);
}
.btn-primary:hover{background:#FF9A57;transform:translateY(-1px);box-shadow:0 12px 30px rgba(255,138,61,.42);}
.btn-primary:active{transform:translateY(1px);box-shadow:inset 0 3px 10px rgba(0,0,0,.25);}
.btn-ghost{
  background:transparent;color:var(--primary);border:1px solid rgba(22,185,198,.55);
}
.btn-ghost:hover{background:rgba(22,185,198,.08);border-color:var(--primary);transform:translateY(-1px);}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
  border-bottom:1px solid rgba(22,185,198,.45);padding-bottom:2px;
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),gap var(--t-fast) var(--ease);
}
.link-arrow:hover{color:var(--accent);border-color:rgba(255,138,61,.55);gap:10px;}

.tag,.badge{
  display:inline-flex;align-items:center;
  padding:3px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;line-height:1.8;
}
.tag{background:var(--primary-soft);color:var(--primary);border:1px solid rgba(22,185,198,.28);}
.badge{background:rgba(255,255,255,.06);color:var(--text-2);border:1px solid var(--line);}

.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:72px;border-bottom:1px solid transparent;
  transition:background var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease),backdrop-filter var(--t-mid) var(--ease);
}
.site-header.scrolled{
  background:rgba(7,12,20,.82);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line-soft);
}
.header-inner{
  display:flex;align-items:center;gap:20px;height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:34px;height:34px;flex:none;display:grid;place-items:center;
  border-radius:11px;color:var(--primary);
  background:linear-gradient(150deg,rgba(22,185,198,.22),rgba(22,185,198,.05));
  border:1px solid rgba(22,185,198,.32);
  box-shadow:0 0 0 1px rgba(22,185,198,.08),0 8px 20px rgba(22,185,198,.12);
}
.brand-mark svg{width:20px;height:20px;stroke-width:1.7;}
.brand-text{
  font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--text-1);
  display:flex;align-items:baseline;gap:6px;line-height:1;
}
.brand-text small{font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.08em;}

.nav-search{
  position:relative;flex:1 1 44%;max-width:520px;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px 0 16px;
  border-radius:999px;background:var(--panel-2);
  border:1px solid var(--line);
  transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(22,185,198,.18);}
.nav-search .search-icon{width:18px;height:18px;flex:none;color:var(--primary);}
.nav-search input{
  flex:1;min-width:0;background:none;border:0;outline:none;
  font-size:14px;color:var(--text-1);
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search kbd{
  flex:none;font-family:inherit;font-size:11px;color:var(--text-3);
  border:1px solid var(--line);border-radius:6px;padding:1px 7px;line-height:1.6;
}
.search-clear{
  display:none;flex:none;width:24px;height:24px;border-radius:50%;
  align-items:center;justify-content:center;font-size:15px;color:var(--text-2);
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.search-clear:hover{background:rgba(255,255,255,.08);color:var(--text-1);}
.nav-search.has-value .search-clear{display:flex;}
.nav-search.has-value kbd{display:none;}

.search-suggest{
  position:absolute;top:calc(100% + 10px);left:0;right:0;
  background:var(--glass);border:1px solid var(--line);border-radius:16px;
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:0 24px 56px rgba(0,0,0,.55);
  max-height:360px;overflow-y:auto;padding:8px;
  z-index:30;
}
.suggest-item{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;
  border-radius:10px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.suggest-item svg{width:16px;height:16px;flex:none;color:var(--primary);}
.suggest-item:hover{background:rgba(255,255,255,.05);color:var(--text-1);border-left-color:var(--primary);}

.nav-links{display:flex;align-items:center;gap:22px;flex:none;}
.nav-links a{
  position:relative;font-size:14px;color:var(--text-2);padding:6px 2px;
  transition:color var(--t-fast) var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t-mid) var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--primary);}
.nav-links a.active::after{transform:scaleX(1);}

.search-toggle,.menu-toggle{display:none;flex:none;}
.search-toggle{
  width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;
  color:var(--primary);border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.search-toggle svg{width:20px;height:20px;}
.menu-toggle{
  width:44px;height:44px;border-radius:12px;flex-direction:column;gap:5px;
  align-items:center;justify-content:center;border:1px solid var(--line);
  background:rgba(255,255,255,.03);
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform var(--t-mid) var(--ease),opacity var(--t-fast) var(--ease);}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 移动搜索面板 & 抽屉 */
.mobile-search{
  position:fixed;top:72px;left:0;right:0;z-index:98;
  background:rgba(7,12,20,.94);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line-soft);
  max-height:0;overflow:hidden;
  transition:max-height var(--t-mid) var(--ease);
}
.mobile-search.open{max-height:120px;}
.mobile-search .container{padding-top:14px;padding-bottom:18px;}
.mobile-search .nav-search{max-width:none;flex:1 1 auto;}

.drawer-mask{
  position:fixed;inset:0;z-index:110;background:rgba(0,0,0,.6);
  backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);
  opacity:0;pointer-events:none;transition:opacity var(--t-mid) var(--ease);
}
.drawer-mask.open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:120;
  width:min(360px,86vw);padding:88px 20px 32px;
  background:rgba(10,17,25,.92);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform var(--t-mid) var(--ease);
  overflow-y:auto;
}
.drawer.open{transform:none;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  border-radius:12px;font-size:15px;color:var(--text-2);
  border-left:2px solid transparent;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--text-1);}
.drawer-nav a.active{color:var(--primary);background:var(--primary-soft);border-left-color:var(--primary);}
.drawer-tip{margin-top:24px;padding:16px 14px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:13px;color:var(--text-3);line-height:1.8;}

/* ============ 页面 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  min-height:372px;display:flex;align-items:center;
  background:var(--bg-0);
  border-bottom:1px solid var(--line-soft);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  opacity:.42;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(620px 340px at 10% 16%,rgba(22,185,198,.18),transparent 70%),
    radial-gradient(520px 300px at 88% 76%,rgba(22,185,198,.13),transparent 72%),
    linear-gradient(90deg,rgba(7,12,20,.96) 0%,rgba(7,12,20,.80) 55%,rgba(7,12,20,.42) 100%);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px,64px 64px;
  pointer-events:none;opacity:.9;
}
.hero-inner{position:relative;z-index:2;padding-top:112px;padding-bottom:56px;width:100%;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:18px;
}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--text-3);}
.breadcrumb a{color:var(--text-2);transition:color var(--t-fast) var(--ease);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb li[aria-current] span,.breadcrumb li[aria-current]{color:var(--text-3);}
.page-hero h1{
  font-size:clamp(30px,4vw,46px);font-weight:700;line-height:1.32;
  letter-spacing:.01em;max-width:16em;
}
.page-hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{margin-top:14px;font-size:16px;color:var(--text-2);max-width:34em;}
.hero-search{
  position:relative;margin-top:28px;max-width:560px;
  display:flex;align-items:center;gap:10px;
  height:52px;padding:0 8px 0 18px;border-radius:999px;
  background:rgba(12,20,31,.86);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.hero-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(22,185,198,.18);}
.hero-search svg{width:19px;height:19px;flex:none;color:var(--primary);}
.hero-search input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:15px;color:var(--text-1);}
.hero-search input::placeholder{color:var(--text-3);}

/* ============ 板块 ============ */
.section{padding:96px 0;position:relative;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{max-width:720px;margin-bottom:56px;}
.section-head h2{
  font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.4;letter-spacing:.01em;
}
.section-desc{margin-top:16px;font-size:16px;color:var(--text-2);max-width:44em;}

/* 指标条 */
.stats-bar{padding:40px 0;background:var(--bg-1);border-bottom:1px solid var(--line-soft);}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{
  padding-left:20px;border-left:1px solid var(--line);
}
.stat:first-child{border-left:0;padding-left:0;}
.stat-num{
  font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;line-height:1.2;letter-spacing:.01em;
}
.stat-num span{font-size:16px;margin-left:2px;color:var(--primary-deep);}
.stat-label{margin-top:6px;font-size:12px;letter-spacing:.04em;color:var(--text-3);}

/* ============ 图文交错 ============ */
.zigzag-item{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:44px 0;
}
.zigzag-item+.zigzag-item{border-top:1px solid var(--line-soft);}
.zigzag-item:nth-child(even) .zigzag-media{order:2;}
.zigzag-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:var(--panel);
  box-shadow:var(--shadow-card);
}
.zigzag-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform var(--t-mid) var(--ease);
}
.zigzag-item:hover .zigzag-media img{transform:scale(1.04);}
.zigzag-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,0) 45%,rgba(6,10,18,.6) 100%);
  pointer-events:none;
}
.zigzag-body h3{font-size:21px;font-weight:600;line-height:1.5;margin:16px 0 14px;}
.zigzag-body p{color:var(--text-2);font-size:16px;}
.zigzag-body p+p{margin-top:1.2em;}
.zigzag-body .link-arrow{margin-top:20px;}

/* ============ 速查清单 ============ */
.check-list{display:grid;gap:16px;}
.check-list li{
  display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:start;
  padding:24px 26px;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);
  transition:transform var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease);
}
.check-list li:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(22,185,198,.4);}
.check-num{
  font-size:24px;font-weight:700;color:var(--primary);opacity:.65;
  font-variant-numeric:tabular-nums;line-height:1.4;
}
.check-body h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.check-body p{font-size:15px;color:var(--text-2);}

/* ============ 场景提示卡 ============ */
.panel-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch;}
.panel{
  border-radius:var(--r-panel);padding:32px;
  background:var(--panel);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.panel-glass{
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-card);
}
.panel h3{font-size:20px;font-weight:600;margin-bottom:12px;}
.panel p{color:var(--text-2);font-size:15px;}
.panel-list{margin-top:20px;display:grid;gap:12px;}
.panel-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.panel-list li::before{
  content:"";flex:none;width:6px;height:6px;margin-top:10px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(22,185,198,.14);
}
.panel-media{
  border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);
  background:var(--panel);box-shadow:var(--shadow-card);position:relative;
}
.panel-media img{width:100%;height:100%;min-height:280px;object-fit:cover;}
.panel-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:16px 20px;
  font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,rgba(6,10,18,0),rgba(6,10,18,.88));
  border-top:1px solid var(--line-soft);
}

/* ============ CTA 卡 ============ */
.cta-section{padding-bottom:104px;}
.cta-card{
  position:relative;overflow:hidden;text-align:center;
  padding:64px 32px;border-radius:var(--r-panel);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-card);
}
.cta-glow{
  position:absolute;width:640px;height:340px;left:50%;top:-140px;transform:translateX(-50%);
  background:radial-gradient(closest-side,rgba(22,185,198,.22),transparent 75%);
  pointer-events:none;
}
.cta-card h2{position:relative;font-size:clamp(24px,2.8vw,32px);font-weight:700;line-height:1.44;}
.cta-card p{position:relative;margin:18px auto 0;max-width:44em;color:var(--text-2);font-size:16px;}
.cta-actions{position:relative;margin-top:32px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:#060A11;border-top:1px solid var(--line-soft);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:48px;}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--text-2);max-width:30em;line-height:1.9;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.04em;}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:7px 0;transition:color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);}
.footer-col a:hover{color:var(--primary);transform:translateX(3px);}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);padding:7px 0;}
.footer-contact svg{width:16px;height:16px;flex:none;color:var(--primary);}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;
  font-size:12px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);transition:color var(--t-fast) var(--ease);}
.footer-bottom a:hover{color:var(--primary);}

/* ============ 底部固定转化条 ============ */
.convert-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:rgba(9,15,24,.86);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-top:1px solid var(--line);
  transform:translateY(110%);
  transition:transform var(--t-mid) var(--ease);
}
.convert-bar::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,185,198,.85),transparent);
}
.convert-bar.show{transform:none;}
.convert-inner{display:flex;align-items:center;gap:18px;height:64px;}
.convert-text{font-size:14px;color:var(--text-2);flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.convert-link{font-size:13px;color:var(--primary);border-bottom:1px solid rgba(22,185,198,.45);padding-bottom:1px;}
.convert-link:hover{color:var(--accent);border-color:rgba(255,138,61,.5);}
.convert-close{
  width:30px;height:30px;border-radius:50%;flex:none;
  display:grid;place-items:center;font-size:16px;line-height:1;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.04);
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.convert-close:hover{background:rgba(255,255,255,.09);color:var(--text-1);}
.convert-call{
  display:none;width:36px;height:36px;flex:none;border-radius:50%;
  align-items:center;justify-content:center;color:var(--primary);
  border:1px solid rgba(22,185,198,.4);background:rgba(22,185,198,.10);
}
.convert-call svg{width:17px;height:17px;}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .nav-links{gap:16px;}
  .nav-links a{font-size:13px;}
  .nav-search{flex:1 1 34%;}
}
@media (max-width:992px){
  .nav-links,.nav-search:not(.mobile){display:none;}
  .search-toggle,.menu-toggle{display:flex;}
  .header-inner{gap:12px;}
  .brand{flex:1;}
  .section{padding:72px 0;}
  .section-head{margin-bottom:40px;}
  .zigzag-item{grid-template-columns:1fr;gap:28px;padding:36px 0;}
  .zigzag-item:nth-child(even) .zigzag-media{order:0;}
  .panel-grid{grid-template-columns:1fr;}
  .panel-media img{min-height:220px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 24px;}
  .stat:nth-child(odd){border-left:0;padding-left:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .page-hero{min-height:340px;}
  .hero-inner{padding-top:104px;padding-bottom:48px;}
  .cta-section{padding-bottom:80px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .page-hero h1{font-size:clamp(26px,7vw,34px);}
  .hero-search{height:48px;}
  .zigzag-body h3{font-size:19px;}
  .check-list li{grid-template-columns:44px 1fr;padding:20px;gap:14px;}
  .cta-card{padding:48px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .convert-inner{height:58px;gap:12px;}
  .convert-text{font-size:13px;}
  .convert-link{display:none;}
  .convert-call{display:flex;}
  .convert-bar .btn-primary{flex:0 0 60%;}
}
@media (max-width:560px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .brand-text{font-size:17px;}
  .brand-text small{font-size:10px;}
  .stats-grid{grid-template-columns:1fr;gap:20px;}
  .stat{border-left:0;padding-left:0;padding-top:14px;border-top:1px solid var(--line);}
  .stat:first-child{border-top:0;padding-top:0;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .panel{padding:24px;}
  .convert-bar .btn-primary{flex:1 1 auto;padding:0 16px;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --bg-0:#060A12; --bg-1:#0A1119; --panel:#0E1723; --panel-2:#0B1220;
  --primary:#16B9C6; --primary-deep:#0E97A4; --primary-soft:rgba(22,185,198,.14);
  --accent:#FF8A3D;
  --text-1:#E6F0F4; --text-2:#9AAEBE; --text-3:#62798C;
  --ok:#34D399; --warn:#FBBF24; --err:#F87171;
  --line:rgba(255,255,255,.10); --line-soft:rgba(255,255,255,.06);
  --glass:linear-gradient(158deg,rgba(255,255,255,.075),rgba(255,255,255,.018));
  --r-card:18px; --r-panel:20px; --r-img:14px; --r-pill:999px; --r-input:12px;
  --sh-card:0 18px 40px rgba(0,0,0,.45);
  --sh-card-hover:0 24px 56px rgba(0,0,0,.55);
  --sh-glow:0 8px 24px rgba(255,138,61,.32);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg-0);color:var(--text-1);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
body.lock{overflow:hidden;}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--accent);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;}
p{margin:0 0 1.2em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:transparent;
  border-bottom:1px solid transparent;transition:background .26s var(--ease),border-color .26s var(--ease),backdrop-filter .26s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,12,20,.82);backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;position:relative;}
.brand{display:inline-flex;align-items:center;gap:10px;max-width:180px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;display:grid;place-items:center;
  background:var(--primary-soft);border:1px solid rgba(22,185,198,.32);
}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.01em;color:var(--text-1);white-space:nowrap;}
.brand-text small{display:block;font-size:11px;font-weight:500;letter-spacing:.16em;color:var(--text-3);}
.nav-search{
  flex:1 1 auto;max-width:46%;min-width:180px;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px;border-radius:var(--r-pill);
  background:#0C141F;border:1px solid var(--line);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search svg{width:18px;height:18px;flex:0 0 18px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;}
.nav-search input{flex:1;min-width:0;border:0;background:none;color:var(--text-1);font-size:14px;outline:none;}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search kbd{
  font-size:11px;color:var(--text-3);border:1px solid var(--line);border-radius:6px;
  padding:2px 7px;background:rgba(255,255,255,.03);
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(22,185,198,.18);}
.nav-links{display:flex;align-items:center;gap:20px;margin-left:auto;}
.nav-links a{
  position:relative;font-size:14px;color:var(--text-2);padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--primary);}
.nav-links a.active::after{transform:scaleX(1);height:2px;}
.nav-toggle,.search-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);place-items:center;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
}
.nav-toggle svg,.search-toggle svg{width:20px;height:20px;fill:none;stroke:var(--text-1);stroke-width:1.8;stroke-linecap:round;}
.nav-toggle.is-active svg{stroke:var(--primary);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);z-index:90;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:95;padding:88px 22px 32px;
  background:var(--glass),rgba(10,17,25,.94);border-left:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);transform:translateX(102%);
  transition:transform .26s var(--ease);overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer a{display:flex;align-items:center;min-height:48px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line-soft);}
.drawer a.active{color:var(--primary);}
.drawer h3{font-size:12px;letter-spacing:.12em;color:var(--text-3);margin:24px 0 6px;font-weight:600;}

/* ============ 面包屑 ============ */
.crumb-bar{border-top:1px solid var(--line-soft);background:linear-gradient(180deg,rgba(10,17,25,.9),rgba(6,10,18,0));}
.breadcrumb{display:flex;align-items:center;gap:10px;height:48px;font-size:13px;color:var(--text-3);flex-wrap:nowrap;overflow:hidden;}
.breadcrumb li{display:flex;align-items:center;gap:10px;white-space:nowrap;}
.breadcrumb li+li::before{content:"/";color:var(--text-3);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .current{color:var(--text-3);max-width:320px;overflow:hidden;text-overflow:ellipsis;}

/* ============ 文章头 ============ */
.article-head{position:relative;padding:56px 0 40px;overflow:hidden;}
.article-head::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(520px 320px at 12% 0%,rgba(22,185,198,.16),transparent 70%),
    radial-gradient(420px 300px at 88% 20%,rgba(255,138,61,.10),transparent 72%),
    linear-gradient(90deg,rgba(7,12,20,.94),rgba(7,12,20,.6) 60%,rgba(7,12,20,.3));
}
.article-head .container{position:relative;z-index:1;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.04em;background:var(--primary-soft);color:var(--primary);
  border:1px solid rgba(22,185,198,.25);
}
.head-row{display:flex;align-items:flex-start;justify-content:space-between;gap:32px;margin-top:18px;}
.article-head h1{font-size:clamp(28px,3.4vw,40px);font-weight:700;letter-spacing:-.01em;max-width:820px;}
.meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:20px;font-size:13px;color:var(--text-3);}
.meta span{display:inline-flex;align-items:center;gap:6px;}
.meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);}
.share{display:flex;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:30px;height:30px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--glass);transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn svg{width:15px;height:15px;fill:none;stroke:var(--text-2);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.icon-btn:hover{border-color:rgba(22,185,198,.5);transform:translateY(-2px);}
.icon-btn:hover svg{stroke:var(--primary);}
.lead{max-width:760px;margin-top:22px;color:var(--text-2);font-size:16px;}

/* ============ 正文布局 ============ */
.section{padding:72px 0;}
.section.tight{padding:0 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px;}
}
.article-panel{
  background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--r-panel);
  padding:38px 34px 30px;
}
.toc-inline{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);padding:4px 18px;margin-bottom:26px;
}
.toc-inline summary{
  cursor:pointer;list-style:none;padding:14px 0;font-size:14px;font-weight:600;color:var(--text-1);
  display:flex;align-items:center;justify-content:space-between;
}
.toc-inline summary::-webkit-details-marker{display:none;}
.toc-inline summary::after{content:"+";color:var(--primary);font-size:18px;line-height:1;transition:transform .2s var(--ease);}
.toc-inline[open] summary::after{transform:rotate(45deg);}
.toc-inline ol{padding:0 0 14px;counter-reset:toc;}
.toc-inline li{margin:4px 0;}
.toc-inline a{font-size:14px;color:var(--text-2);}
@media (min-width:1200px){.toc-inline{display:none;}}

.aside{display:none;}
@media (min-width:1200px){.aside{display:block;}}
.aside-inner{position:sticky;top:96px;display:grid;gap:20px;}
.side-card{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);padding:20px;
}
.side-card h3{font-size:13px;letter-spacing:.1em;color:var(--text-3);font-weight:600;margin-bottom:12px;}
.side-nav a{
  display:block;position:relative;padding:10px 0 10px 14px;font-size:14px;color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
}
.side-nav a:last-child{border-bottom:0;}
.side-nav a::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:2px;height:0;background:var(--primary);transition:height .2s var(--ease);}
.side-nav a:hover{color:var(--text-1);}
.side-nav a:hover::before{height:18px;}
.side-nav a.current{color:var(--primary);}
.side-nav a.current::before{height:18px;}
.pick{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line-soft);}
.pick:last-child{border-bottom:0;padding-bottom:0;}
.pick img{width:64px;height:52px;object-fit:cover;flex:0 0 64px;border-radius:10px;}
.pick strong{display:block;font-size:14px;font-weight:600;color:var(--text-1);line-height:1.5;}
.pick span{font-size:12px;color:var(--text-3);}
.pick:hover strong{color:var(--primary);}

/* ============ 正文排版 ============ */
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--text-1);}
.article-body p{margin:0 0 1.35em;}
.article-body h2{
  font-size:clamp(20px,2.2vw,26px);margin:44px 0 16px;padding-left:14px;
  border-left:3px solid var(--primary);line-height:1.45;
}
.article-body h3{font-size:19px;margin:32px 0 12px;font-weight:600;}
.article-body ul,.article-body ol{margin:0 0 1.35em;padding-left:8px;}
.article-body ul li{position:relative;padding-left:20px;margin:8px 0;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--primary);
}
.article-body ol{list-style:decimal;padding-left:24px;}
.article-body ol li{margin:8px 0;}
.article-body ol li::marker{color:var(--primary);font-weight:600;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--primary);border-radius:8px;
  background:rgba(22,185,198,.05);color:var(--text-2);
}
.article-body img{margin:26px auto;border-radius:12px;}
.article-body figure{margin:26px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:rgba(22,185,198,.05);color:var(--text-1);font-weight:600;}
.article-body pre{
  background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:16px 18px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body code{font-family:"JetBrains Mono",Consolas,Menlo,monospace;font-size:.92em;}
.article-body p code{background:rgba(22,185,198,.10);color:var(--primary);padding:2px 6px;border-radius:6px;}
.article-body a{border-bottom:1px solid rgba(22,185,198,.45);padding-bottom:1px;}
.article-body a:hover{color:var(--accent);border-bottom-color:rgba(255,138,61,.6);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* ============ 空态 ============ */
.empty-state{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  border:1px dashed var(--line);border-radius:var(--r-card);background:rgba(255,255,255,.02);text-align:center;padding:32px;
}
.empty-state p{color:var(--text-2);margin:0;}

/* ============ 标签 / 相关 ============ */
.tag-block{margin-top:40px;padding-top:28px;border-top:1px solid var(--line-soft);}
.tag-block h3{font-size:13px;letter-spacing:.1em;color:var(--text-3);font-weight:600;margin-bottom:14px;}
.tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;font-size:13px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.03);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.tag:hover{border-color:rgba(22,185,198,.5);color:var(--primary);}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.related-head h2{font-size:clamp(22px,2.4vw,30px);}
.related-head .more{font-size:14px;border-bottom:1px solid rgba(22,185,198,.45);padding-bottom:2px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);box-shadow:var(--sh-card);overflow:hidden;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover),0 0 0 1px rgba(22,185,198,.35);border-color:rgba(22,185,198,.35);}
.card-thumb{overflow:hidden;aspect-ratio:16/10;}
.card-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .26s var(--ease);}
.card:hover .card-thumb img{transform:scale(1.04);}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:16px;line-height:1.55;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card:hover .card-body h3{color:var(--primary);}
.card-body p{margin:0;font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--text-3);margin-top:auto;}

/* ============ 上一篇 / 下一篇 ============ */
.pn-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:26px;}
.pn{
  display:flex;flex-direction:column;gap:8px;padding:20px 22px;border:1px solid var(--line);
  border-radius:var(--r-card);background:var(--glass);backdrop-filter:blur(16px) saturate(140%);
  transition:transform .26s var(--ease),border-color .26s var(--ease);
}
.pn:hover{transform:translateY(-3px);border-color:rgba(22,185,198,.4);}
.pn span{font-size:12px;color:var(--text-3);letter-spacing:.06em;}
.pn strong{font-size:15px;font-weight:600;color:var(--text-1);line-height:1.55;}
.pn.next{text-align:right;align-items:flex-end;}

/* ============ CTA ============ */
.cta-card{
  position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--r-panel);
  background:var(--glass);backdrop-filter:blur(16px) saturate(140%);
  padding:52px 44px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(420px 260px at 8% 20%,rgba(22,185,198,.18),transparent 70%),
             radial-gradient(320px 240px at 92% 90%,rgba(255,138,61,.12),transparent 72%);
}
.cta-card>*{position:relative;z-index:1;}
.cta-card h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.cta-card p{margin:0;color:var(--text-2);max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 按钮 ============ */
.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;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--accent);color:#170A02;box-shadow:var(--sh-glow);}
.btn-primary:hover{background:#ff9a56;color:#170A02;transform:translateY(-1px);box-shadow:0 12px 30px rgba(255,138,61,.38);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 3px 10px rgba(0,0,0,.28);}
.btn-ghost{border:1px solid rgba(22,185,198,.55);color:var(--primary);background:transparent;}
.btn-ghost:hover{background:rgba(22,185,198,.08);color:var(--primary);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}

/* ============ 页脚 ============ */
.site-footer{background:#060A11;border-top:1px solid var(--line-soft);margin-top:8px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand p{color:var(--text-2);font-size:14px;margin:16px 0 0;max-width:320px;}
.footer-col h4{font-size:13px;letter-spacing:.1em;color:var(--text-3);font-weight:600;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:6px 0;}
.footer-col a:hover{color:var(--primary);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2);padding:6px 0;}
.footer-contact svg{width:16px;height:16px;flex:0 0 16px;margin-top:5px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-soft);font-size:12px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}

/* ============ 底部转化条 ============ */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;min-height:64px;
  background:rgba(9,15,24,.88);backdrop-filter:blur(16px) saturate(140%);
  border-top:1px solid rgba(255,255,255,.08);
  transform:translateY(110%);transition:transform .26s var(--ease);
}
.sticky-bar::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,185,198,.9),transparent);
}
.sticky-bar.show{transform:translateY(0);}
.sticky-inner{display:flex;align-items:center;gap:18px;min-height:64px;padding:10px 0;}
.sticky-inner p{margin:0;font-size:14px;color:var(--text-2);}
.sticky-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.sticky-close{
  width:30px;height:30px;border-radius:50%;display:grid;place-items:center;margin-left:8px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
}
.sticky-close svg{width:14px;height:14px;fill:none;stroke:var(--text-2);stroke-width:1.8;stroke-linecap:round;}
.sticky-close:hover svg{stroke:var(--primary);}
body.has-sticky{padding-bottom:84px;}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px;}
  .footer-col:last-child{grid-column:span 3;}
}
@media (max-width:1024px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .section{padding:72px 0;}
  .article-panel{padding:32px 26px 26px;}
}
@media (max-width:991px){
  .nav-links,.nav-search{display:none;}
  .nav-toggle,.search-toggle{display:inline-grid;}
  .header-inner{gap:12px;}
  .site-header.search-open .nav-search{
    display:flex;position:absolute;top:100%;left:16px;right:16px;max-width:none;min-width:0;
    box-shadow:0 18px 40px rgba(0,0,0,.5);
  }
  .head-row{flex-direction:column;gap:20px;}
  .cta-card{padding:40px 26px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .article-head{padding:40px 0 28px;}
  .article-panel{padding:24px 18px 20px;border-radius:16px;}
  .article-body{font-size:16px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .pn-grid{grid-template-columns:minmax(0,1fr);}
  .pn.next{text-align:left;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-col:last-child{grid-column:span 2;}
  .breadcrumb .current{max-width:180px;}
}
@media (max-width:560px){
  .article-head h1{font-size:26px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-col:last-child{grid-column:span 1;}
  .sticky-inner p{display:none;}
  .sticky-actions{margin-left:0;width:100%;justify-content:space-between;}
  .sticky-actions .btn{flex:1;}
  .cta-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --bg-0:#060A12;
  --bg-1:#0A1119;
  --panel:#0E1723;
  --primary:#16B9C6;
  --primary-deep:#0E97A4;
  --primary-soft:rgba(22,185,198,.14);
  --primary-line:rgba(22,185,198,.35);
  --accent:#FF8A3D;
  --text-1:#E6F0F4;
  --text-2:#9AAEBE;
  --text-3:#62798C;
  --ok:#34D399;
  --warn:#FBBF24;
  --err:#F87171;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --glass-fill:linear-gradient(158deg, rgba(255,255,255,.075), rgba(255,255,255,.018));
  --r-card:18px;
  --r-panel:20px;
  --r-img:14px;
  --r-pill:999px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-hover:0 24px 56px rgba(0,0,0,.55);
  --shadow-accent:0 8px 24px rgba(255,138,61,.32);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t-fast:180ms;
  --t-slow:260ms;
}

/* ============ Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  min-height:100vh;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  padding-bottom:64px;
  overflow-x:hidden;
  font-variant-numeric:tabular-nums;
}
body.no-scroll{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit;background:none;border:0}
button{cursor:pointer}
ul,ol{list-style:none}
h1,h2,h3,h4{color:var(--text-1);line-height:1.3;font-weight:700}
h1{font-size:clamp(30px,3.8vw,46px);letter-spacing:-.01em}
h2{font-size:clamp(24px,2.8vw,34px)}
h3{font-size:20px;font-weight:600}
strong{color:var(--text-1)}
::selection{background:rgba(22,185,198,.32);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

/* ============ 背景装饰 ============ */
.bg-decor{
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(620px 430px at 10% -8%, rgba(22,185,198,.16), transparent 66%),
    radial-gradient(520px 380px at 92% 6%, rgba(255,138,61,.08), transparent 68%),
    radial-gradient(760px 520px at 50% 110%, rgba(22,185,198,.10), transparent 72%);
}
.bg-decor::after{
  content:"";
  position:absolute;
  inset:0;
  opacity:.035;
  background-image:
    linear-gradient(rgba(255,255,255,.9) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.9) 1px, transparent 1px);
  background-size:64px 64px;
}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ============ 玻璃 / 卡片 ============ */
.glass{
  background:var(--glass-fill);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08), var(--shadow-card);
}
.card{
  background:var(--glass-fill);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-radius:var(--r-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08), var(--shadow-card);
  transition:transform var(--t-slow) var(--ease), box-shadow var(--t-slow) var(--ease), border-color var(--t-slow) var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(22,185,198,.40);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10), var(--shadow-hover), 0 0 0 1px rgba(22,185,198,.35);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease), background var(--t-fast) var(--ease), filter var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(180deg,#FF9C59,#FF8A3D);
  color:#1A0C02;
  box-shadow:var(--shadow-accent);
}
.btn-primary:hover{
  filter:brightness(1.06);
  transform:translateY(-1px);
  box-shadow:0 12px 30px rgba(255,138,61,.42);
}
.btn-primary:active{
  transform:translateY(0);
  box-shadow:inset 0 2px 8px rgba(0,0,0,.28);
}
.btn-ghost{
  color:var(--primary);
  border-color:rgba(22,185,198,.55);
  background:rgba(22,185,198,.05);
}
.btn-ghost:hover{
  background:rgba(22,185,198,.14);
  border-color:rgba(22,185,198,.85);
  transform:translateY(-1px);
}
.btn-sm{min-height:44px;padding:0 20px;font-size:14px}
.icon-btn{
  width:44px;
  height:44px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--glass-fill);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  color:var(--text-2);
  transition:color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(22,185,198,.5);background:rgba(22,185,198,.10)}
.icon-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  border-bottom:1px solid rgba(22,185,198,.45);
  padding-bottom:3px;
  transition:color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.link-arrow:hover{color:var(--accent);border-color:rgba(255,138,61,.6)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  letter-spacing:.04em;
  background:var(--primary-soft);
  border:1px solid rgba(22,185,198,.25);
  color:var(--primary);
}
.badge-neutral{
  background:rgba(255,255,255,.05);
  border-color:var(--line);
  color:var(--text-2);
}
.tag{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 10px;
  border-radius:8px;
  font-size:12px;
  letter-spacing:.04em;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-soft);
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  transition:background var(--t-slow) var(--ease), border-color var(--t-slow) var(--ease), backdrop-filter var(--t-slow) var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(7,12,20,.82);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:rgba(255,255,255,.08);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  max-width:180px;
  flex-shrink:0;
}
.brand-mark{
  width:36px;
  height:36px;
  flex-shrink:0;
  border-radius:11px;
  display:grid;
  place-items:center;
  color:var(--primary);
  background:rgba(22,185,198,.14);
  border:1px solid rgba(22,185,198,.35);
  box-shadow:0 0 18px rgba(22,185,198,.18);
}
.brand-mark svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.06;
  font-size:17px;
  font-weight:700;
  color:var(--text-1);
  letter-spacing:.01em;
}
.brand-text small{
  font-size:10px;
  font-weight:500;
  color:var(--text-3);
  letter-spacing:.08em;
}
.search-wrap{position:relative;flex:1 1 44%;max-width:540px;min-width:200px}
.search-box{
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:#0C141F;
  border:1px solid var(--line);
  transition:border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.search-box svg{width:18px;height:18px;flex-shrink:0;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.search-box input{
  flex:1;
  min-width:0;
  font-size:14px;
  color:var(--text-1);
  outline:none;
}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{
  border-color:rgba(22,185,198,.65);
  box-shadow:0 0 0 4px rgba(22,185,198,.18);
}
.kbd{
  display:none;
  font-size:11px;
  color:var(--text-3);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 6px;
  line-height:1.6;
}
@media (min-width:1100px){.kbd{display:inline-block}}
.search-panel{
  position:absolute;
  top:calc(100% + 10px);
  left:0;
  right:0;
  max-height:360px;
  overflow-y:auto;
  border-radius:var(--r-card);
  padding:8px;
  background:linear-gradient(158deg, rgba(18,28,40,.96), rgba(12,19,29,.94));
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-hover);
  opacity:0;
  visibility:hidden;
  transform:translateY(-6px);
  transition:opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease), visibility var(--t-fast);
}
.search-panel.open{opacity:1;visibility:visible;transform:translateY(0)}
.search-panel a{
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.search-panel a:hover{background:rgba(255,255,255,.05);color:var(--text-1);border-left-color:var(--primary)}
.search-panel a svg{width:16px;height:16px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.search-panel a .s-meta{margin-left:auto;font-size:12px;color:var(--text-3)}

.nav-links{display:flex;align-items:center;gap:22px;font-size:14px;margin-left:auto}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:4px 0;
  color:var(--text-2);
  transition:color var(--t-fast) var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:6px;
  height:1px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--t-fast) var(--ease);
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--primary)}
.nav-links a.active::after{
  transform:scaleX(1);
  height:2px;
  border-radius:2px;
  bottom:4px;
}
.nav-mobile-actions{display:none;align-items:center;gap:8px;margin-left:auto}

.mobile-search{
  display:none;
  padding-bottom:14px;
}
.mobile-search.open{display:block}

.drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:min(84vw,340px);
  z-index:90;
  padding:26px 22px;
  overflow-y:auto;
  background:linear-gradient(158deg, rgba(18,28,40,.96), rgba(10,17,25,.96));
  border-left:1px solid var(--line);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:-24px 0 60px rgba(0,0,0,.55);
  transform:translateX(102%);
  transition:transform var(--t-slow) var(--ease);
}
.drawer.open{transform:translateX(0)}
.drawer h4{font-size:12px;letter-spacing:.08em;color:var(--text-3);font-weight:600;margin:20px 0 8px}
.drawer a.drawer-link{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 12px;
  border-radius:12px;
  font-size:15px;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.drawer a.drawer-link:hover{background:rgba(255,255,255,.05);color:var(--text-1)}
.drawer a.drawer-link.active{color:var(--primary);border-left-color:var(--primary);background:rgba(22,185,198,.10)}
.drawer .drawer-close{margin-left:auto}
.drawer-head{display:flex;align-items:center;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line-soft)}
.backdrop{
  position:fixed;
  inset:0;
  z-index:80;
  background:rgba(0,0,0,.6);
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
  opacity:0;
  pointer-events:none;
  transition:opacity var(--t-slow) var(--ease);
}
.backdrop.open{opacity:1;pointer-events:auto}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb a{color:var(--text-3);transition:color var(--t-fast) var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li:not(:last-child)::after{content:"/";color:rgba(255,255,255,.18)}
.breadcrumb li[aria-current]{color:var(--text-2);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;
  min-height:368px;
  display:flex;
  align-items:center;
  padding:64px 0 56px;
  overflow:hidden;
  border-bottom:1px solid var(--line-soft);
  background:
    linear-gradient(90deg, rgba(7,12,20,.94) 0%, rgba(7,12,20,.74) 55%, rgba(7,12,20,.42) 100%),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
}
.cat-hero::after{
  content:"";
  position:absolute;
  width:620px;
  height:620px;
  right:-160px;
  top:-260px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(22,185,198,.18), transparent 66%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2}
.cat-hero h1{margin:16px 0 14px;max-width:820px}
.cat-hero h1 .h1-accent{color:var(--primary)}
.hero-sub{
  font-size:16px;
  color:var(--text-2);
  max-width:620px;
  margin-bottom:26px;
}
.hero-search{max-width:520px}

/* ============ 板块 ============ */
.section{padding:96px 0;position:relative;z-index:1}
.section-alt{background:var(--bg-1)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head .badge{margin-bottom:14px}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--text-2);font-size:15.5px}

/* ============ 概述与指标 ============ */
.overview{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.overview p + p{margin-top:14px}
.metrics{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1px;
  background:var(--line-soft);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  overflow:hidden;
}
.metric{
  background:var(--panel);
  padding:22px 20px;
}
.metric .num{
  display:block;
  font-size:30px;
  font-weight:700;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.metric .num small{font-size:15px;font-weight:600;margin-left:2px}
.metric .lbl{display:block;font-size:12px;letter-spacing:.04em;color:var(--text-3);margin-top:6px}

/* ============ 2×2 特性网格 ============ */
.grid-2x2{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.feat-card{
  padding:30px 28px;
  display:flex;
  flex-direction:column;
  gap:14px;
  position:relative;
  overflow:hidden;
}
.feat-card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(22,185,198,.75), transparent);
  opacity:0;
  transition:opacity var(--t-slow) var(--ease);
}
.feat-card:hover::before{opacity:1}
.feat-head{display:flex;align-items:center;gap:14px}
.feat-icon{
  width:44px;
  height:44px;
  flex-shrink:0;
  border-radius:13px;
  display:grid;
  place-items:center;
  color:var(--primary);
  background:rgba(22,185,198,.12);
  border:1px solid rgba(22,185,198,.28);
}
.feat-icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.feat-card h3{font-size:21px}
.feat-card p{font-size:15px;color:var(--text-2)}
.feat-card .feat-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.feat-card .link-arrow{align-self:flex-start;margin-top:auto}

/* ============ 方案对比表 ============ */
.table-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  background:var(--panel);
  overflow-x:auto;
  box-shadow:var(--shadow-card);
}
table.compare{
  width:100%;
  min-width:760px;
  border-collapse:collapse;
  font-size:15px;
}
table.compare thead th{
  text-align:left;
  padding:18px 20px;
  font-size:14px;
  font-weight:600;
  color:var(--text-1);
  background:rgba(22,185,198,.16);
  border-bottom:1px solid rgba(22,185,198,.28);
  letter-spacing:.02em;
  white-space:nowrap;
}
table.compare tbody td{
  padding:16px 20px;
  color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
  vertical-align:middle;
}
table.compare tbody tr:nth-child(odd){background:rgba(255,255,255,.03)}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody td:first-child{color:var(--text-1);font-weight:600}
table.compare .cell-ok{color:var(--ok);font-weight:600;font-variant-numeric:tabular-nums}
.table-note{
  margin-top:14px;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 图文区 ============ */
.split{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.split-media{
  position:relative;
  border-radius:var(--r-panel);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.split-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:0;
  transition:transform var(--t-slow) var(--ease);
}
.split-media:hover img{transform:scale(1.04)}
.split-media .media-strip{
  position:absolute;
  left:14px;
  right:14px;
  bottom:14px;
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 16px;
  border-radius:14px;
  background:linear-gradient(158deg, rgba(18,28,40,.86), rgba(12,19,29,.78));
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  font-size:13px;
  color:var(--text-2);
}
.split-media .media-strip b{color:var(--text-1);font-weight:600}
.split-text h2{margin-bottom:16px}
.split-text p + p{margin-top:14px}
.check-list{margin:22px 0 26px;display:grid;gap:12px}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  color:var(--text-2);
}
.check-list li svg{
  width:20px;
  height:20px;
  flex-shrink:0;
  margin-top:3px;
  fill:none;
  stroke:var(--primary);
  stroke-width:1.9;
  stroke-linecap:round;
  stroke-linejoin:round;
}

/* ============ CTA 卡 ============ */
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-panel);
  padding:56px 40px;
  text-align:center;
  background:var(--glass-fill);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08), var(--shadow-card);
}
.cta-card::before{
  content:"";
  position:absolute;
  width:560px;
  height:560px;
  left:50%;
  top:-320px;
  transform:translateX(-50%);
  border-radius:50%;
  background:radial-gradient(circle, rgba(22,185,198,.20), transparent 65%);
  pointer-events:none;
}
.cta-card h2{position:relative;margin-bottom:14px}
.cta-card p{position:relative;max-width:600px;margin:0 auto 30px;color:var(--text-2)}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:16px;justify-content:center}

/* ============ 底部固定转化条 ============ */
.conv-bar{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:70;
  background:rgba(8,13,21,.86);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-top:1px solid rgba(255,255,255,.08);
  transform:translateY(110%);
  transition:transform var(--t-slow) var(--ease);
}
.conv-bar::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(22,185,198,.85), transparent);
}
.conv-bar.show{transform:translateY(0)}
.conv-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:64px;
}
.conv-text{font-size:14px;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.conv-text b{color:var(--text-1);font-weight:600}
.conv-actions{display:flex;align-items:center;gap:18px;margin-left:auto}
.conv-link{font-size:14px;color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.22);padding-bottom:2px;transition:color var(--t-fast) var(--ease)}
.conv-link:hover{color:var(--primary)}
.conv-phone{display:none}
.conv-close{
  width:30px;
  height:30px;
  flex-shrink:0;
  border-radius:50%;
  display:grid;
  place-items:center;
  color:var(--text-3);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-size:16px;
  line-height:1;
  transition:color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.conv-close:hover{color:var(--text-1);border-color:rgba(255,255,255,.28)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:1;
  background:#060A11;
  border-top:1px solid var(--line-soft);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  color:var(--text-3);
  max-width:320px;
}
.footer-col h4{
  font-size:14px;
  color:var(--text-1);
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-col a{
  display:flex;
  align-items:center;
  min-height:36px;
  font-size:14px;
  color:var(--text-3);
  transition:color var(--t-fast) var(--ease), padding-left var(--t-fast) var(--ease);
}
.footer-col a:hover{color:var(--primary);padding-left:4px}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:36px;
  font-size:14px;
  color:var(--text-3);
}
.footer-contact svg{
  width:17px;
  height:17px;
  flex-shrink:0;
  fill:none;
  stroke:var(--primary);
  stroke-width:1.7;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  padding:20px 0 26px;
  border-top:1px solid var(--line-soft);
  font-size:12px;
  color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);transition:color var(--t-fast) var(--ease)}
.footer-bottom a:hover{color:var(--primary)}
.footer-bottom span:last-child{margin-left:auto}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .split{gap:44px}
}
@media (max-width:1024px){
  .nav-inner{gap:18px}
  .nav-links{gap:16px;font-size:13.5px}
  .search-wrap{flex-basis:38%}
  .overview{grid-template-columns:1fr;gap:36px}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media{order:-1}
}
@media (max-width:991px){
  .nav-links,
  .search-wrap{display:none}
  .nav-mobile-actions{display:flex}
  .cat-hero{min-height:320px;padding:48px 0 44px}
  .section{padding:72px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .grid-2x2{grid-template-columns:1fr}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .cta-card{padding:40px 22px}
  .cta-actions .btn{width:100%}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom span:last-child{margin-left:0}
}
@media (max-width:560px){
  body{font-size:15.5px;padding-bottom:56px}
  .container{padding:0 16px}
  .brand-text{font-size:16px}
  .cat-hero h1{font-size:clamp(26px,7vw,32px)}
  .hero-sub{font-size:15px}
  .feat-card{padding:24px 20px}
  .conv-inner{height:56px;gap:10px}
  .conv-text{font-size:13px;max-width:38%}
  .conv-actions{margin-left:auto;gap:10px}
  .conv-actions .btn{min-width:0;flex:1 1 auto;padding:0 16px;font-size:14px}
  .conv-link{display:none}
  .conv-phone{display:inline-flex;width:36px;height:36px}
  .conv-phone svg{width:17px;height:17px}
  .metric .num{font-size:26px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.001ms !important;animation-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --bg-0:#060A12;
  --bg-1:#0A1119;
  --panel:#0E1723;
  --primary:#16B9C6;
  --primary-deep:#0E97A4;
  --primary-weak:rgba(22,185,198,.14);
  --accent:#FF8A3D;
  --text-1:#E6F0F4;
  --text-2:#9AAEBE;
  --text-3:#62798C;
  --ok:#34D399;
  --warn:#FBBF24;
  --err:#F87171;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --glass-fill:linear-gradient(158deg,rgba(255,255,255,.075),rgba(255,255,255,.018));
  --radius-card:18px;
  --radius-panel:20px;
  --radius-img:14px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-card-hover:0 24px 56px rgba(0,0,0,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(680px 420px at 10% 6%,rgba(22,185,198,.18),transparent 68%),
    radial-gradient(560px 460px at 88% 26%,rgba(22,185,198,.13),transparent 70%),
    radial-gradient(520px 400px at 46% 88%,rgba(22,185,198,.10),transparent 72%);
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
svg{display:block}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:2}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:transparent;transition:background 260ms var(--ease),border-color 260ms var(--ease),box-shadow 260ms var(--ease);border-bottom:1px solid transparent}
.site-header.is-scrolled{background:rgba(7,12,20,.82);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;gap:26px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px}
.brand-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(160deg,rgba(22,185,198,.26),rgba(22,185,198,.05));border:1px solid rgba(22,185,198,.35);box-shadow:inset 0 1px 0 rgba(255,255,255,.10)}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.01em;white-space:nowrap;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif}
.brand-text small{font-size:12px;font-weight:500;color:var(--text-2);margin-left:6px;letter-spacing:.06em}
.nav-search{position:relative;flex:1 1 auto;max-width:520px;min-width:180px;display:flex;align-items:center;gap:10px;height:44px;padding:0 12px 0 14px;border-radius:999px;background:#0C141F;border:1px solid rgba(255,255,255,.08);transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease)}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(22,185,198,.18)}
.nav-search .ico-search{width:17px;height:17px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;flex:0 0 auto}
.nav-search input{flex:1 1 auto;min-width:0;background:none;border:0;outline:0;font-size:14px;color:var(--text-1);padding:0}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search .kbd{font-size:11px;color:var(--text-3);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-variant-numeric:tabular-nums;letter-spacing:.04em}
.search-clear{display:none;width:26px;height:26px;border-radius:50%;color:var(--text-2);font-size:16px;line-height:1;place-items:center}
.nav-search.has-value .search-clear{display:grid}
.nav-search.has-value .kbd{display:none}
.search-suggest{position:absolute;top:calc(100% + 10px);left:0;right:0;max-height:360px;overflow:auto;padding:8px;border-radius:16px;background:linear-gradient(158deg,rgba(255,255,255,.075),rgba(255,255,255,.018));border:1px solid var(--line);-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);box-shadow:0 24px 56px rgba(0,0,0,.55);opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity 180ms var(--ease),transform 180ms var(--ease),visibility 180ms}
.nav-search.is-open .search-suggest{opacity:1;visibility:visible;transform:translateY(0)}
.search-suggest a{display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;border-radius:10px;font-size:14px;color:var(--text-2);border-left:2px solid transparent;transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease)}
.search-suggest a:hover{background:rgba(255,255,255,.05);color:var(--text-1);border-left-color:var(--primary)}
.search-suggest a svg{width:16px;height:16px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:20px;flex:0 1 auto}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:44px;font-size:14px;color:var(--text-2);white-space:nowrap;transition:color 180ms var(--ease)}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:8px;height:1px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform 180ms var(--ease)}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--primary)}
.nav-links a.active::after{height:2px;transform:scaleX(1)}
.header-actions{display:none;align-items:center;gap:8px;margin-left:auto}
.icon-btn{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(158deg,rgba(255,255,255,.075),rgba(255,255,255,.018));border:1px solid var(--line);transition:border-color 180ms var(--ease),background 180ms var(--ease)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:var(--text-1);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.icon-btn:hover{border-color:rgba(22,185,198,.5)}
.nav-toggle{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;gap:5px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform 180ms var(--ease),opacity 180ms var(--ease)}
.mobile-search{display:none;border-top:1px solid var(--line-soft);background:rgba(7,12,20,.94);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.mobile-search form{display:flex;align-items:center;gap:10px;height:46px;margin:12px 0 16px;padding:0 14px;border-radius:999px;background:#0C141F;border:1px solid rgba(255,255,255,.08)}
.mobile-search input{flex:1;min-width:0;background:none;border:0;outline:0;font-size:14px}
.mobile-search svg{width:17px;height:17px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round}
.site-header.search-open .mobile-search{display:block}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.6);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);opacity:0;visibility:hidden;transition:opacity 220ms var(--ease),visibility 220ms;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);z-index:95;padding:22px;background:linear-gradient(158deg,rgba(18,26,38,.96),rgba(10,17,25,.98));border-left:1px solid var(--line);-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);transform:translateX(102%);transition:transform 260ms var(--ease);display:flex;flex-direction:column;gap:18px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line-soft)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;font-size:15px;color:var(--text-2);border-left:2px solid transparent;transition:background 180ms var(--ease),color 180ms var(--ease)}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--text-1)}
.drawer-nav a.active{color:var(--primary);border-left-color:var(--primary);background:rgba(22,185,198,.10)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:16px;border-top:1px solid var(--line-soft)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:calc(var(--header-h) + 56px) 0 60px;min-height:360px;display:flex;align-items:flex-end;border-bottom:1px solid var(--line-soft)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;filter:saturate(.85)}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,12,20,.94) 0%,rgba(7,12,20,.74) 55%,rgba(7,12,20,.38) 100%),linear-gradient(180deg,rgba(6,10,18,.96) 0%,rgba(6,10,18,.30) 45%,rgba(6,10,18,.96) 100%)}
.hero-glow{position:absolute;z-index:1;width:520px;height:520px;right:-90px;top:-160px;border-radius:50%;background:radial-gradient(circle,rgba(22,185,198,.28),transparent 66%);pointer-events:none;opacity:.8}
.hero .container{width:100%}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--text-3);opacity:.6}
.breadcrumb a{color:var(--text-2);transition:color 180ms var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb [aria-current]{color:var(--text-3)}
.hero h1{font-size:clamp(30px,4.2vw,48px);font-weight:700;line-height:1.25;letter-spacing:-.01em;max-width:820px}
.hero h1 .dot{color:var(--primary);margin:0 10px;font-weight:400}
.hero-sub{margin-top:16px;font-size:16px;color:var(--text-2);max-width:640px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;font-size:12px;letter-spacing:.04em;color:var(--primary);background:var(--primary-weak);border:1px solid rgba(22,185,198,.25)}
.hero-search{position:relative;margin-top:26px;max-width:520px;display:flex;align-items:center;gap:10px;height:48px;padding:0 16px;border-radius:999px;background:rgba(12,20,31,.86);border:1px solid rgba(255,255,255,.10)}
.hero-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(22,185,198,.18)}
.hero-search svg{width:17px;height:17px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;flex:0 0 auto}
.hero-search input{flex:1;min-width:0;background:none;border:0;outline:0;font-size:14px}
.hero-search input::placeholder{color:var(--text-3)}

/* ---------- sections ---------- */
.section{padding:96px 0;position:relative}
.section.alt{background:var(--bg-1);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;color:var(--primary);text-transform:uppercase;margin-bottom:14px;font-family:Inter,system-ui,sans-serif}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--primary)}
.glass{background:var(--glass-fill);border:1px solid var(--line);-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);border-radius:var(--radius-card)}

/* metrics */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);padding:34px 10px;border-radius:var(--radius-panel)}
.metric{padding:0 26px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0}
.metric b{display:block;font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--primary);letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.2;font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif}
.metric span{display:block;margin-top:6px;font-size:12px;letter-spacing:.04em;color:var(--text-3)}

/* flow */
.flow{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:56px}
.flow::before{content:"";position:absolute;top:25px;left:40px;right:40px;height:2px;border-radius:2px;background:linear-gradient(90deg,rgba(22,185,198,.05),rgba(22,185,198,.65) 22%,rgba(22,185,198,.30) 88%,rgba(22,185,198,.05))}
.step{position:relative}
.step-num{position:relative;z-index:2;width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(160deg,var(--primary),var(--primary-deep));color:#04161C;font-weight:700;font-size:17px;font-variant-numeric:tabular-nums;box-shadow:0 10px 26px rgba(22,185,198,.35),inset 0 1px 0 rgba(255,255,255,.35);font-family:Inter,sans-serif}
.step h3{margin:22px 0 10px;font-size:20px;font-weight:600;line-height:1.4}
.step p{color:var(--text-2);font-size:15px;line-height:1.85}
.step-meta{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:12px;letter-spacing:.04em;color:var(--text-3)}
.step-meta::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);opacity:.8}

/* object grid */
.obj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.obj-card{padding:26px 24px;border-radius:var(--radius-card);background:var(--glass-fill);border:1px solid var(--line);-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);box-shadow:var(--shadow-card);transition:transform 260ms var(--ease),border-color 260ms var(--ease),box-shadow 260ms var(--ease)}
.obj-card:hover{transform:translateY(-4px);border-color:rgba(22,185,198,.40);box-shadow:var(--shadow-card-hover),0 0 0 1px rgba(22,185,198,.28)}
.obj-card .ico{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--primary-weak);border:1px solid rgba(22,185,198,.26);margin-bottom:18px}
.obj-card .ico svg{width:20px;height:20px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.obj-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.obj-card p{font-size:14px;color:var(--text-2);line-height:1.8}

/* compare */
.compare{border-radius:var(--radius-panel);overflow:hidden;border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow-card)}
.compare-head,.compare-row{display:grid;grid-template-columns:1.05fr 1fr 1fr;align-items:center;gap:16px;padding:18px 26px}
.compare-head{background:rgba(22,185,198,.12);border-bottom:1px solid var(--line);font-size:13px;letter-spacing:.06em;color:var(--primary)}
.compare-head span:nth-child(2),.compare-head span:nth-child(3){color:var(--text-2)}
.compare-row{border-bottom:1px solid var(--line-soft);font-size:15px;transition:background 180ms var(--ease)}
.compare-row:last-child{border-bottom:0}
.compare-row:nth-child(odd){background:rgba(255,255,255,.03)}
.compare-row:hover{background:rgba(22,185,198,.07)}
.compare-key{color:var(--text-1);font-weight:600}
.compare-before{color:var(--text-3)}
.compare-after{color:var(--text-1)}
.compare-after::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--ok);margin-right:8px;vertical-align:middle}

/* support */
.support{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.support-media{position:relative;border-radius:var(--radius-panel);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.support-media img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-panel);transition:transform 260ms var(--ease)}
.support-media:hover img{transform:scale(1.04)}
.support-badge{position:absolute;left:18px;bottom:18px;display:flex;flex-direction:column;gap:2px;padding:14px 18px;border-radius:14px;background:rgba(10,17,25,.78);border:1px solid var(--line);-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%)}
.support-badge b{font-size:22px;color:var(--accent);font-variant-numeric:tabular-nums;font-weight:700;font-family:Inter,sans-serif}
.support-badge span{font-size:12px;color:var(--text-3);letter-spacing:.04em}
.support-list{display:flex;flex-direction:column;gap:16px;margin-top:26px}
.support-list li{display:flex;gap:14px;align-items:flex-start;padding:16px 18px;border-radius:14px;background:var(--panel);border:1px solid var(--line-soft);transition:border-color 260ms var(--ease),transform 260ms var(--ease)}
.support-list li:hover{border-color:rgba(22,185,198,.35);transform:translateY(-2px)}
.support-list .tick{flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:var(--primary-weak);border:1px solid rgba(22,185,198,.30);margin-top:3px}
.support-list .tick svg{width:14px;height:14px;fill:none;stroke:var(--primary);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.support-list strong{display:block;font-size:16px;font-weight:600}
.support-list p{font-size:14px;color:var(--text-2);margin-top:4px}

/* cta */
.cta-card{position:relative;overflow:hidden;padding:56px 48px;border-radius:var(--radius-panel);text-align:center;background:var(--glass-fill);border:1px solid var(--line);-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);box-shadow:var(--shadow-card)}
.cta-card::before{content:"";position:absolute;width:640px;height:340px;left:50%;top:-140px;transform:translateX(-50%);background:radial-gradient(ellipse at center,rgba(22,185,198,.30),transparent 68%);pointer-events:none}
.cta-card h2{position:relative;font-size:clamp(22px,2.6vw,30px);font-weight:700}
.cta-card p{position:relative;margin:14px auto 0;max-width:620px;color:var(--text-2);font-size:16px}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 28px;border-radius:999px;background:linear-gradient(160deg,#FFA express,#FF8A3D);background:linear-gradient(160deg,#FFA05C,#FF8A3D);color:#1A0E04;font-size:15px;font-weight:600;box-shadow:0 8px 24px rgba(255,138,61,.32);transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),filter 180ms var(--ease)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 30px rgba(255,138,61,.44)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 3px 10px rgba(0,0,0,.28)}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 26px;border-radius:999px;border:1px solid rgba(22,185,198,.55);color:var(--primary);font-size:15px;font-weight:600;background:transparent;transition:background 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease)}
.btn-ghost:hover{background:rgba(22,185,198,.12);transform:translateY(-1px)}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;border-bottom:1px solid rgba(22,185,198,.5);padding-bottom:2px;transition:color 180ms var(--ease),border-color 180ms var(--ease)}
.text-link:hover{color:var(--accent);border-color:var(--accent)}

/* convert bar */
.convert-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;height:64px;background:linear-gradient(158deg,rgba(20,28,40,.92),rgba(10,17,25,.94));-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);border-top:1px solid var(--line);transform:translateY(110%);transition:transform 260ms var(--ease);display:flex;align-items:center}
.convert-bar::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(22,185,198,.9),transparent)}
.convert-bar.is-visible{transform:translateY(0)}
.convert-inner{display:flex;align-items:center;gap:20px;width:100%}
.convert-text{font-size:15px;font-weight:600;color:var(--text-1);flex:1 1 auto;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.convert-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.convert-close{flex:0 0 auto;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-size:16px;color:var(--text-2);background:rgba(255,255,255,.05);border:1px solid var(--line)}
.convert-close:hover{color:var(--text-1);border-color:rgba(22,185,198,.5)}
.convert-phone{display:none;width:36px;height:36px;border-radius:50%;place-items:center;background:var(--primary-weak);border:1px solid rgba(22,185,198,.35)}
.convert-phone svg{width:16px;height:16px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* footer */
.site-footer{position:relative;z-index:2;background:#060A11;border-top:1px solid var(--line-soft);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-2);max-width:320px}
.footer-col h4{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--text-1);margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:7px 0;transition:color 180ms var(--ease),padding-left 180ms var(--ease)}
.footer-col a:hover{color:var(--primary);padding-left:4px}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);padding:7px 0}
.footer-contact svg{width:16px;height:16px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;padding:20px 0 28px;border-top:1px solid var(--line-soft);font-size:12px;color:var(--text-3);letter-spacing:.02em}
.footer-bottom a{color:var(--text-3);border-bottom:1px dotted rgba(255,255,255,.18)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .nav-links{gap:16px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .support{gap:40px}
  .flow{grid-template-columns:repeat(2,1fr);gap:36px 24px}
  .flow::before{display:none}
}
@media (max-width:992px){
  .nav-links{display:none}
  .nav-search{display:none}
  .header-actions{display:flex}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .obj-grid{grid-template-columns:repeat(2,1fr)}
  .support{grid-template-columns:1fr}
  .hero{min-height:300px;padding:calc(var(--header-h) + 40px) 0 48px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .container{padding:0 16px}
  .metrics{grid-template-columns:repeat(2,1fr);gap:26px 0;padding:26px 6px}
  .metric{padding:0 18px}
  .metric:nth-child(odd){border-left:0}
  .flow{grid-template-columns:1fr;gap:28px;margin-top:40px}
  .flow::before{display:block;top:22px;bottom:22px;left:21px;right:auto;width:2px;height:auto;background:linear-gradient(180deg,rgba(22,185,198,.65),rgba(22,185,198,.05))}
  .step{display:grid;grid-template-columns:44px 1fr;column-gap:18px;row-gap:0}
  .step-num{width:44px;height:44px;font-size:15px}
  .step-body{padding-top:2px}
  .step h3{margin:4px 0 8px;font-size:18px}
  .compare-head,.compare-row{grid-template-columns:1fr;gap:6px;padding:16px 18px}
  .compare-head span:nth-child(2),.compare-head span:nth-child(3){display:none}
  .compare-row{padding:18px}
  .compare-before{font-size:13px;color:var(--text-3)}
  .cta-card{padding:40px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .convert-bar{height:56px}
  .convert-text{font-size:14px}
  .convert-actions .text-link{display:none}
  .convert-actions .btn-primary{min-height:42px;padding:0 20px;font-size:14px}
  .convert-phone{display:grid}
  .site-footer{padding-bottom:56px}
}
@media (max-width:560px){
  .obj-grid{grid-template-columns:1fr}
  .hero h1{font-size:28px}
  .hero h1 .dot{display:none}
  .hero h1 span.line{display:block}
  .section-head{margin-bottom:32px}
  .brand-text{font-size:17px}
  .brand-text small{font-size:11px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
/* ===================== 设计变量 ===================== */
:root{
  --bg-0:#060A12;
  --bg-1:#0A1119;
  --panel:#0E1723;
  --panel-2:#0C141F;
  --primary:#16B9C6;
  --primary-deep:#0E97A4;
  --primary-soft:rgba(22,185,198,.14);
  --accent:#FF8A3D;
  --text-1:#E6F0F4;
  --text-2:#9AAEBE;
  --text-3:#62798C;
  --ok:#34D399;
  --warn:#FBBF24;
  --err:#F87171;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --glass:linear-gradient(158deg,rgba(255,255,255,.075),rgba(255,255,255,.018));
  --r-sm:12px;
  --r-card:18px;
  --r-panel:20px;
  --r-img:14px;
  --sh-card:0 18px 40px rgba(0,0,0,.45);
  --sh-hover:0 24px 56px rgba(0,0,0,.55);
  --sh-glow:0 8px 24px rgba(255,138,61,.32);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t-fast:180ms;
  --t-base:260ms;
  --container:1200px;
  --nav-h:72px;
}

/* ===================== reset / base ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100vh;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.lock{overflow:hidden;}
img{max-width:100%;display:block;height:auto;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:none;outline:none;}
button{cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.35;font-weight:700;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(circle at 10% 6%, rgba(22,185,198,.16), transparent 40%),
    radial-gradient(circle at 88% 2%, rgba(22,185,198,.10), transparent 36%),
    radial-gradient(circle at 62% 96%, rgba(255,138,61,.07), transparent 42%),
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:auto,auto,auto,64px 64px,64px 64px;
}
.site-header,.site-main,.site-footer{position:relative;z-index:1;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ===================== 通用文本 / 标题 ===================== */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--primary);
  background:var(--primary-soft);border:1px solid rgba(22,185,198,.25);
  border-radius:999px;padding:5px 14px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);}
.section{padding:96px 0;position:relative;}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head h2{font-size:clamp(24px,2.8vw,34px);margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;}
.lead{color:var(--text-2);font-size:17px;}
.hint{font-size:14px;color:var(--text-3);}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-base) var(--ease),background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#1B0D02;box-shadow:var(--sh-glow);}
.btn-primary:hover{background:#FF9A57;transform:translateY(-1px);box-shadow:0 12px 30px rgba(255,138,61,.42);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 3px 10px rgba(0,0,0,.25);}
.btn-ghost{border:1px solid rgba(22,185,198,.55);color:var(--primary);}
.btn-ghost:hover{background:rgba(22,185,198,.10);border-color:var(--primary);transform:translateY(-1px);}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
  border-bottom:1px solid rgba(22,185,198,.45);
  padding-bottom:4px;
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.link-more:hover{color:var(--accent);border-color:rgba(255,138,61,.6);}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);
  transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.icon-btn:hover{border-color:rgba(22,185,198,.5);color:var(--primary);}
.icon-btn svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}

/* ===================== 导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--t-base) var(--ease),border-color var(--t-base) var(--ease),backdrop-filter var(--t-base) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,12,20,.82);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:rgba(255,255,255,.08);
}
.header-inner{
  height:var(--nav-h);
  display:flex;align-items:center;gap:22px;
}
.brand{display:inline-flex;align-items:center;gap:10px;min-width:0;}
.brand-mark{
  width:34px;height:34px;flex:none;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(22,185,198,.28),rgba(22,185,198,.06));
  border:1px solid rgba(22,185,198,.36);
}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{
  font-size:19px;font-weight:700;letter-spacing:.01em;white-space:nowrap;
  max-width:180px;display:inline-flex;align-items:baseline;gap:4px;
}
.brand-text small{font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.12em;}

.nav-search{
  position:relative;
  flex:1 1 auto;max-width:46%;min-width:240px;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px 0 16px;
  border-radius:999px;
  background:var(--panel-2);
  border:1px solid var(--line);
  transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(22,185,198,.18);}
.nav-search .search-icon{width:19px;height:19px;flex:none;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;}
.nav-search input{flex:1 1 auto;min-width:0;font-size:14px;color:var(--text-1);}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search input::-webkit-search-cancel-button{display:none;}
.key-hint{
  flex:none;font-size:11px;color:var(--text-3);
  border:1px solid var(--line);border-radius:6px;padding:2px 7px;letter-spacing:.04em;
}
.search-suggest{
  position:absolute;top:calc(100% + 10px);left:0;right:0;
  max-height:360px;overflow-y:auto;
  background:rgba(12,20,31,.94);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--sh-card);
  padding:8px;
  z-index:80;
}
.search-suggest[hidden]{display:none;}
.search-suggest a{
  display:flex;align-items:center;gap:10px;
  min-height:44px;padding:0 12px;border-radius:10px;
  font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.search-suggest a:hover{background:rgba(22,185,198,.10);color:var(--text-1);border-left-color:var(--primary);}
.sg-dot{width:6px;height:6px;border-radius:50%;background:var(--primary);flex:none;}

.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 12px;
  font-size:14px;color:var(--text-2);white-space:nowrap;
  transition:color var(--t-fast) var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;
  border-radius:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--t-base) var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--primary);}
.nav-links a.active::after{transform:scaleX(1);}

.header-actions{display:none;align-items:center;gap:10px;margin-left:auto;}

/* 移动搜索面板 */
.mobile-search{
  display:none;
  padding:0 24px 14px;
}
.mobile-search.open{display:block;}
.mobile-search form{
  display:flex;align-items:center;gap:10px;height:46px;padding:0 16px;
  background:var(--panel-2);border:1px solid var(--line);border-radius:999px;
}
.mobile-search input{flex:1;font-size:14px;min-width:0;}
.mobile-search svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:90;
  background:rgba(0,0,0,.6);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;
  transition:opacity var(--t-base) var(--ease),visibility var(--t-base) var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:95;
  width:min(320px,84vw);
  padding:24px 20px;
  background:linear-gradient(158deg,rgba(18,28,42,.96),rgba(9,15,24,.98));
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform var(--t-base) var(--ease);
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-head strong{font-size:16px;}
.drawer nav{display:flex;flex-direction:column;gap:6px;}
.drawer nav a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  border-radius:12px;font-size:15px;color:var(--text-2);
  border-left:2px solid transparent;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.drawer nav a:hover,.drawer nav a.active{background:rgba(22,185,198,.10);color:var(--text-1);border-left-color:var(--primary);}
.drawer-foot{margin-top:26px;padding-top:20px;border-top:1px solid var(--line-soft);font-size:13px;color:var(--text-3);line-height:2;}

/* ===================== 内页 Hero ===================== */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line-soft);
  background:#070C14 url("/assets/images/backpic/back-2.png") center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,12,20,.95) 0%,rgba(7,12,20,.80) 52%,rgba(7,12,20,.46) 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(circle at 78% 22%, rgba(22,185,198,.20), transparent 52%);
}
.page-hero .container{position:relative;z-index:2;padding-top:34px;padding-bottom:62px;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);min-height:44px;
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--text-3);opacity:.6;}
.breadcrumb a{color:var(--text-2);transition:color var(--t-fast) var(--ease);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .current{color:var(--text-3);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.hero-body{max-width:760px;margin-top:26px;}
.hero-body h1{
  font-size:clamp(28px,3.8vw,46px);
  letter-spacing:-.01em;
  margin-bottom:16px;
}
.hero-body h1 .accent{color:var(--primary);}
.hero-sub{font-size:17px;color:var(--text-2);max-width:640px;}
.hero-search{
  margin-top:28px;max-width:520px;
  display:flex;align-items:center;gap:10px;height:50px;padding:0 8px 0 18px;
  border-radius:999px;background:rgba(10,17,25,.86);border:1px solid var(--line);
  transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.hero-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(22,185,198,.18);}
.hero-search svg{width:19px;height:19px;flex:none;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;}
.hero-search input{flex:1;min-width:0;font-size:14px;}
.hero-search input::placeholder{color:var(--text-3);}
.hero-search .btn{flex:none;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.04em;color:var(--text-2);
  background:var(--glass);border:1px solid var(--line);
  border-radius:999px;padding:6px 14px;
}
.chip.is-primary{color:var(--primary);background:var(--primary-soft);border-color:rgba(22,185,198,.28);}

/* ===================== 指标条 ===================== */
.metrics{background:var(--bg-1);border-bottom:1px solid var(--line-soft);}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  padding:44px 0;
}
.metric{
  padding:0 24px;position:relative;
}
.metric+.metric::before{
  content:"";position:absolute;left:0;top:12%;height:76%;width:1px;background:var(--line);
}
.metric-num{
  font-size:clamp(28px,3vw,34px);font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.metric-num span{font-size:16px;font-weight:600;margin-left:2px;}
.metric-label{font-size:12px;letter-spacing:.04em;color:var(--text-3);margin-top:6px;}

/* ===================== 切入点 ===================== */
.path-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.path-card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 24px 28px;
  overflow:hidden;
  transition:transform var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease),border-color var(--t-base) var(--ease);
}
.path-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(22,185,198,.4);}
.path-card::after{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,185,198,.9),transparent);
  opacity:0;transition:opacity var(--t-base) var(--ease);
}
.path-card:hover::after{opacity:1;}
.path-no{
  position:absolute;top:14px;right:18px;
  font-size:52px;font-weight:700;line-height:1;
  color:rgba(22,185,198,.12);
  font-variant-numeric:tabular-nums;
}
.path-icon{
  width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-soft);border:1px solid rgba(22,185,198,.24);
  margin-bottom:18px;
}
.path-icon svg{width:22px;height:22px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.path-card h3{font-size:20px;margin-bottom:10px;}
.path-card p{font-size:14px;color:var(--text-2);line-height:1.85;margin-bottom:16px;}

/* ===================== 优化节奏 ===================== */
.rhythm{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.rhythm-media{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-card);
  background:var(--panel);
}
.rhythm-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--t-base) var(--ease);}
.rhythm-media:hover img{transform:scale(1.04);}
.rhythm-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 20px;font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(6,10,18,.9));
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-top:1px solid var(--line-soft);
}
.rhythm-text h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:18px;}
.rhythm-text p{color:var(--text-2);margin-bottom:1.2em;}
.rhythm-list{margin:22px 0 26px;display:grid;gap:12px;}
.rhythm-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--text-2);
}
.rhythm-list li::before{
  content:"";flex:none;width:7px;height:7px;margin-top:9px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 3px rgba(22,185,198,.16);
}

/* ===================== FAQ ===================== */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);
}
.faq-item:hover{border-color:rgba(22,185,198,.32);}
.faq-item.open{border-color:rgba(22,185,198,.42);box-shadow:0 12px 32px rgba(0,0,0,.36);}
.faq-q{margin:0;font-size:16px;font-weight:600;}
.faq-btn{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:64px;padding:16px 22px;
  text-align:left;font-size:16px;font-weight:600;line-height:1.6;
  color:var(--text-1);
  border-left:2px solid transparent;
  transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.faq-item.open .faq-btn{border-left-color:var(--primary);color:var(--primary);}
.faq-icon{
  position:relative;flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);background:var(--glass);
  transition:transform var(--t-base) var(--ease),border-color var(--t-fast) var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;
  transform:translate(-50%,-50%);border-radius:2px;
}
.faq-icon::before{width:11px;height:1.6px;}
.faq-icon::after{width:1.6px;height:11px;}
.faq-item.open .faq-icon{transform:rotate(45deg);border-color:rgba(22,185,198,.5);}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--t-base) var(--ease);}
.faq-a-inner{padding:0 22px 22px 24px;font-size:15px;color:var(--text-2);line-height:1.85;}
.faq-a-inner p+p{margin-top:.9em;}

/* ===================== 相关阅读 ===================== */
.post-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-bottom:32px;
}
.post-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.post-item a{
  display:flex;align-items:center;gap:16px;
  padding:14px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:transform var(--t-base) var(--ease),border-color var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);
  min-height:112px;
}
.post-item a:hover{transform:translateY(-4px);border-color:rgba(22,185,198,.38);box-shadow:var(--sh-hover);}
.post-thumb{
  flex:none;width:112px;height:84px;border-radius:var(--r-img);overflow:hidden;
  background:var(--panel-2);border:1px solid var(--line-soft);
}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-base) var(--ease);}
.post-item a:hover .post-thumb img{transform:scale(1.04);}
.post-body{min-width:0;display:flex;flex-direction:column;gap:8px;}
.post-title{
  font-size:15px;font-weight:600;line-height:1.6;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--t-fast) var(--ease);
}
.post-item a:hover .post-title{color:var(--primary);}
.post-meta{font-size:12px;color:var(--text-3);letter-spacing:.02em;display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.04em;
  padding:3px 10px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);border:1px solid rgba(22,185,198,.24);
}
.tag.is-warn{background:rgba(251,191,36,.12);color:var(--warn);border-color:rgba(251,191,36,.28);}

/* ===================== CTA ===================== */
.cta-card{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);
  padding:56px 44px;
  text-align:center;
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--sh-card);
}
.cta-card::before{
  content:"";position:absolute;top:-140px;left:50%;transform:translateX(-50%);
  width:520px;height:320px;pointer-events:none;
  background:radial-gradient(circle,rgba(22,185,198,.30),transparent 68%);
}
.cta-card>*{position:relative;z-index:1;}
.cta-card h2{font-size:clamp(24px,2.8vw,32px);margin-bottom:14px;}
.cta-card p{color:var(--text-2);max-width:640px;margin:0 auto 28px;}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}
.cta-note{margin-top:20px;font-size:13px;color:var(--text-3);}

/* ===================== 底部转化条 ===================== */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(9,15,24,.9);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-top:1px solid var(--line);
  transform:translateY(110%);
  transition:transform var(--t-base) var(--ease);
}
.sticky-cta::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,185,198,.85),transparent);
}
.sticky-cta.show{transform:translateY(0);}
.sticky-inner{
  display:flex;align-items:center;gap:18px;
  min-height:64px;padding:8px 56px 8px 0;
}
.sticky-text{font-size:14px;color:var(--text-2);flex:1 1 auto;min-width:0;}
.sticky-text b{color:var(--text-1);font-weight:600;}
.sticky-actions{display:flex;align-items:center;gap:16px;flex:none;}
.sticky-close{
  position:absolute;right:12px;top:50%;transform:translateY(-50%);
  width:30px;height:30px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-3);
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.sticky-close:hover{color:var(--text-1);border-color:rgba(22,185,198,.4);}
.sticky-close svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;}
.phone-btn{display:none;}

body.has-sticky{padding-bottom:72px;}

/* ===================== 页脚 ===================== */
.site-footer{background:#060A11;border-top:1px solid var(--line-soft);margin-top:96px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 44px;
}
.footer-brand p{font-size:14px;color:var(--text-2);margin-top:16px;max-width:340px;line-height:1.9;}
.footer-col h4{font-size:14px;letter-spacing:.04em;color:var(--text-1);margin-bottom:16px;}
.footer-col a{
  display:block;font-size:14px;color:var(--text-2);padding:6px 0;
  transition:color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
}
.footer-col a:hover{color:var(--primary);transform:translateX(3px);}
.footer-contact{display:grid;gap:12px;font-size:14px;color:var(--text-2);}
.footer-contact li{display:flex;align-items:center;gap:10px;}
.footer-contact svg{width:16px;height:16px;flex:none;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--line-soft);
  font-size:12px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);transition:color var(--t-fast) var(--ease);}
.footer-bottom a:hover{color:var(--primary);}

/* ===================== 响应式 ===================== */
@media (max-width:1280px){
  .path-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:36px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .rhythm{grid-template-columns:1fr;gap:32px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);row-gap:32px;padding:36px 0;}
  .metric:nth-child(3)::before{display:none;}
}
@media (max-width:992px){
  .nav-links,.nav-search{display:none;}
  .header-actions{display:flex;}
  .page-hero .container{padding-top:22px;padding-bottom:48px;}
  .post-list{grid-template-columns:1fr;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .page-hero .container{padding-bottom:40px;}
  .hero-body{margin-top:18px;}
  .hero-sub{font-size:15.5px;}
  .hero-search{height:48px;padding:0 6px 0 14px;max-width:100%;}
  .hero-search .btn{padding:0 16px;font-size:14px;min-height:38px;}
  .path-grid{grid-template-columns:1fr;}
  .cta-card{padding:40px 22px;}
  .sticky-inner{min-height:56px;gap:12px;padding-right:50px;}
  .sticky-text{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  .sticky-actions .link-more{display:none;}
  .sticky-actions .btn{flex:0 0 auto;}
  .phone-btn{
    display:inline-flex;width:36px;height:36px;border-radius:50%;
    align-items:center;justify-content:center;
    background:var(--glass);border:1px solid var(--line);color:var(--primary);
  }
  .phone-btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
  body.has-sticky{padding-bottom:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px;}
  .footer-brand{grid-column:1 / -1;}
  .site-footer{margin-top:56px;}
}
@media (max-width:560px){
  .metrics-grid{grid-template-columns:1fr;row-gap:0;padding:24px 0;}
  .metric{padding:16px 0;}
  .metric+.metric::before{display:none;}
  .metric{border-top:1px solid var(--line-soft);}
  .metric:first-child{border-top:none;}
  .post-item a{flex-direction:column;align-items:flex-start;padding:14px;}
  .post-thumb{width:100%;height:auto;aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-actions .btn{width:100%;}
  .brand-text{font-size:17px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}