/* ==========================================================================
   人为峰科技集团 · 门户设计系统
   RENWEIFENG TECHNOLOGY GROUP — Portal Design System
   ========================================================================== */

:root{
  /* 色板 */
  --ink:#0a1020;
  --ink-2:#1c2740;
  --muted:#5b6a84;
  --muted-2:#8593aa;
  --line:#e3e9f2;
  --line-2:#eef2f8;
  --bg:#ffffff;
  --bg-soft:#f5f7fb;
  --bg-sink:#eef2f9;
  --brand:#1552d6;
  --brand-2:#0b8fe0;
  --brand-deep:#0b3ba8;
  --brand-soft:#eaf1ff;
  --brand-line:#c9dbfb;
  --mint:#0fa678;
  --mint-soft:#e7f7f1;
  --gold:#d98a1f;
  --gold-soft:#fdf4e5;
  --dark:#07112a;
  --dark-2:#0d1c3d;

  /* 排版 */
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:"SF Mono",ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;

  /* 尺寸 */
  --maxw:1240px;
  --nav-h:66px;
  --top-h:36px;
  --radius-s:8px;
  --radius:14px;
  --radius-l:22px;
  --shadow-s:0 1px 2px rgba(10,16,32,.05);
  --shadow:0 12px 32px -20px rgba(10,16,32,.28);
  --shadow-l:0 40px 80px -48px rgba(10,16,32,.42);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;line-height:1.25;color:var(--ink);font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:var(--brand);color:#fff}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.wrap-narrow{max-width:880px;margin:0 auto;padding:0 28px}

/* ============================ 按钮 ============================ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:all .22s cubic-bezier(.4,0,.2,1);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(21,82,214,.9)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 16px 32px -16px rgba(21,82,214,.95)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.55);color:#fff;backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn-line{border:1.5px solid var(--line);color:var(--ink);background:#fff}
.btn-line:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px}
.arrow{display:inline-block;transition:transform .22s}
.btn:hover .arrow,.link-more:hover .arrow{transform:translateX(4px)}

.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand);
  transition:gap .22s;
}
.link-more:hover{gap:10px}

/* ============================ 顶部工具条 ============================ */
.topbar{
  background:var(--dark);color:rgba(255,255,255,.72);
  font-size:13px;height:var(--top-h);
  display:flex;align-items:center;
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;width:100%}
.topbar-l{display:flex;gap:22px;align-items:center}
.topbar a:hover{color:#fff}
.topbar-r{display:flex;gap:16px;align-items:center}
.topbar .sep{opacity:.32}
.topbar .pill{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.1);padding:3px 11px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;
}
.dot{width:6px;height:6px;border-radius:50%;background:#3ddc97;display:inline-block}

/* ============================ 主导航 ============================ */
.nav{
  position:sticky;top:0;z-index:900;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-in{
  max-width:var(--maxw);margin:0 auto;padding:0 28px;
  height:var(--nav-h);display:flex;align-items:center;gap:8px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;margin-right:14px}
.brand-mark{width:36px;height:36px;flex-shrink:0}
.brand-txt{display:flex;flex-direction:column;line-height:1.12}
.brand-cn{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.06em}
.brand-en{font-size:8.5px;font-weight:600;color:var(--muted-2);letter-spacing:.18em;text-transform:uppercase}

.menu{display:flex;align-items:center;gap:2px;flex:1}
.menu>li{position:relative}
.menu>li>a{
  display:flex;align-items:center;gap:5px;
  padding:9px 14px;border-radius:9px;
  font-size:15px;font-weight:600;color:var(--ink-2);
  transition:all .18s;
}
.menu>li>a:hover,.menu>li.on>a{color:var(--brand);background:var(--brand-soft)}
.caret{width:9px;height:9px;opacity:.5;transition:transform .2s}
.menu>li:hover .caret{transform:rotate(180deg)}

/* Mega 下拉 */
.mega{
  position:absolute;top:calc(100% + 10px);left:50%;transform:translate(-50%,10px);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);
  box-shadow:var(--shadow-l);
  padding:26px 28px;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:all .24s cubic-bezier(.4,0,.2,1);
  z-index:950;
}
.menu>li:hover .mega{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.mega.cols-1{width:290px}
.mega.cols-2{width:560px}
.mega.cols-3{width:790px}
.mega-grid{display:grid;gap:22px 30px}
.cols-1 .mega-grid{grid-template-columns:1fr}
.cols-2 .mega-grid{grid-template-columns:1fr 1fr}
.cols-3 .mega-grid{grid-template-columns:repeat(3,1fr)}
.mega-col>h5{
  font-size:11.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--muted-2);margin:0 0 11px;
}
.mega-col a{
  display:block;padding:7px 0;font-size:14.5px;color:var(--ink-2);
  border-bottom:1px solid transparent;transition:all .16s;
}
.mega-col a:hover{color:var(--brand);padding-left:5px}
.mega-col a small{display:block;font-size:12.5px;color:var(--muted);font-weight:400;line-height:1.5;margin-top:2px}
.mega-foot{
  margin-top:20px;padding-top:16px;border-top:1px solid var(--line-2);
  display:flex;gap:18px;flex-wrap:wrap;
}

.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search{
  display:flex;align-items:center;gap:7px;
  border:1px solid var(--line);border-radius:999px;
  padding:7px 15px;font-size:13.5px;color:var(--muted-2);
  transition:all .2s;
}
.nav-search:hover{border-color:var(--brand-line);color:var(--brand)}
.burger{display:none;width:42px;height:42px;border-radius:10px;align-items:center;justify-content:center}
.burger span{display:block;width:19px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:19px;height:2px;background:var(--ink);border-radius:2px;
}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;background:#fff;z-index:1000;
  transform:translateX(100%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;padding:20px 24px 60px;
}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{font-size:26px;line-height:1;color:var(--ink);padding:6px 10px}
.drawer h4{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2);margin:22px 0 8px}
.drawer a{display:block;padding:11px 0;font-size:16px;font-weight:600;color:var(--ink-2);border-bottom:1px solid var(--line-2)}

/* ============================ Hero ============================ */
.hero{position:relative;height:min(76vh,660px);min-height:470px;overflow:hidden;background:var(--dark)}
.slide{
  position:absolute;inset:0;opacity:0;transition:opacity 1.1s ease;
  display:flex;align-items:center;
}
.slide.on{opacity:1}
.slide-bg{position:absolute;inset:0}
.slide-bg img{width:100%;height:100%;object-fit:cover}
.slide-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,17,42,.92) 0%,rgba(7,17,42,.72) 42%,rgba(7,17,42,.28) 100%);
}
.slide-in{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:0 28px;width:100%}
.slide-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:#7fd4ff;margin-bottom:18px;
}
.slide-eyebrow::before{content:"";width:26px;height:2px;background:#7fd4ff;border-radius:2px}
.slide h1{
  color:#fff;font-size:clamp(30px,4.4vw,54px);font-weight:800;
  letter-spacing:-.02em;line-height:1.16;max-width:830px;
}
.slide p{
  color:rgba(255,255,255,.84);font-size:clamp(15px,1.35vw,18.5px);
  margin-top:20px;max-width:640px;line-height:1.8;
}
.slide-acts{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-nav{
  position:absolute;bottom:34px;left:50%;transform:translateX(-50%);
  z-index:5;display:flex;gap:10px;
}
.hero-nav button{
  width:34px;height:4px;border-radius:2px;background:rgba(255,255,255,.32);
  transition:all .3s;
}
.hero-nav button.on{background:#fff;width:56px}

/* ============================ 数字条 ============================ */
.stats{background:var(--bg-soft);border-bottom:1px solid var(--line)}
.stats-in{
  max-width:var(--maxw);margin:0 auto;padding:0 28px;
  display:grid;grid-template-columns:repeat(5,1fr);
}
.stat{padding:34px 12px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:clamp(26px,3vw,38px);font-weight:800;color:var(--brand);letter-spacing:-.02em;line-height:1.1}
.stat span{display:block;font-size:13.5px;color:var(--muted);margin-top:8px;letter-spacing:.02em}

/* ============================ 通用区块 ============================ */
.sec{padding:82px 0}
.sec-soft{background:var(--bg-soft)}
.sec-sink{background:var(--bg-sink)}
.sec-dark{background:var(--dark);color:rgba(255,255,255,.8)}
.sec-dark h2,.sec-dark h3{color:#fff}
.sec-tight{padding:56px 0}

.head{max-width:800px;margin-bottom:46px}
.head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--brand);margin-bottom:14px;
}
.sec-dark .eyebrow{color:#7fd4ff}
.head h2{font-size:clamp(24px,2.7vw,36px);font-weight:800;letter-spacing:-.02em}
.head p{color:var(--muted);font-size:16.5px;margin-top:16px;line-height:1.85}
.sec-dark .head p{color:rgba(255,255,255,.72)}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:46px;flex-wrap:wrap}
.head-row .head{margin-bottom:0}

/* ============================ 卡片体系 ============================ */
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;transition:all .26s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
}
.card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow);
  border-color:var(--brand-line);
}
.card-ico{
  width:46px;height:46px;border-radius:12px;background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;
  font-size:21px;margin-bottom:18px;flex-shrink:0;
}
.card-ico.mint{background:var(--mint-soft)}
.card-ico.gold{background:var(--gold-soft)}
.card h3{font-size:18.5px;font-weight:700;margin-bottom:10px}
.card p{font-size:14.5px;color:var(--muted);line-height:1.8;flex:1}
.card .link-more{margin-top:18px}
.card-tag{
  font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted-2);margin-bottom:12px;
}

/* 带图卡片 */
.card-img{padding:0;overflow:hidden}
.card-img .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-sink)}
.card-img .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.4,0,.2,1)}
.card-img:hover .thumb img{transform:scale(1.06)}
.card-img .body{padding:24px 26px 28px;display:flex;flex-direction:column;flex:1}

/* 大图业务卡 */
.biz{display:grid;grid-template-columns:1.15fr 1fr;gap:0;border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);background:#fff}
.biz + .biz{margin-top:26px}
.biz-img{position:relative;min-height:340px}
.biz-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.biz-body{padding:44px 44px 40px;display:flex;flex-direction:column;justify-content:center}
.biz-body h3{font-size:25px;font-weight:800;margin-bottom:14px;letter-spacing:-.02em}
.biz-body>p{color:var(--muted);font-size:15.5px;line-height:1.85}
.biz-list{margin-top:24px;display:grid;grid-template-columns:1fr 1fr;gap:10px 18px}
.biz-list li{font-size:14px;color:var(--ink-2);padding-left:18px;position:relative}
.biz-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;
  border-radius:50%;background:var(--brand);
}
.biz-foot{margin-top:30px;display:flex;gap:20px;flex-wrap:wrap;align-items:center}

/* ============================ 三大闭环支柱 ============================ */
.pillar{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:0;overflow:hidden;display:flex;flex-direction:column;
}
.pillar-top{padding:28px 28px 24px;border-bottom:1px solid var(--line-2)}
.pillar-top .n{
  font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--brand);
}
.pillar-top h3{font-size:21px;font-weight:800;margin:10px 0 8px}
.pillar-top p{font-size:14px;color:var(--muted);line-height:1.75}
.pillar ul{padding:22px 28px 28px;display:flex;flex-direction:column;gap:13px;flex:1}
.pillar li{font-size:14px;color:var(--ink-2);padding-left:20px;position:relative;line-height:1.7}
.pillar li::before{
  content:"";position:absolute;left:0;top:8px;width:7px;height:7px;
  border-radius:2px;background:var(--brand-soft);border:1.5px solid var(--brand);
}
.pillar li b{color:var(--ink);font-weight:700}

/* ============================ 特性分栏 ============================ */
.feat{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.feat.rev .feat-img{order:2}
.feat-img{border-radius:var(--radius-l);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.feat-img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.feat-body h2{font-size:clamp(22px,2.4vw,31px);font-weight:800;letter-spacing:-.02em}
.feat-body>p{color:var(--muted);font-size:15.5px;margin-top:16px;line-height:1.85}
.feat-points{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.feat-points li{display:flex;gap:13px;font-size:14.5px;line-height:1.75}
.feat-points .k{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;margin-top:3px;
}
.feat-points b{color:var(--ink);font-weight:700}

/* ============================ 市场卡 ============================ */
.mkt{
  display:block;position:relative;border-radius:var(--radius);overflow:hidden;
  min-height:268px;color:#fff;transition:transform .3s cubic-bezier(.4,0,.2,1);
}
.mkt:hover{transform:translateY(-5px)}
.mkt img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .55s cubic-bezier(.4,0,.2,1)}
.mkt:hover img{transform:scale(1.07)}
.mkt::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,17,42,.18) 0%,rgba(7,17,42,.82) 62%,rgba(7,17,42,.94) 100%);
}
.mkt-in{position:relative;z-index:2;padding:24px 26px;height:100%;display:flex;flex-direction:column;justify-content:flex-end;min-height:268px}
.mkt-in h3{color:#fff;font-size:20px;font-weight:800;margin-bottom:8px}
.mkt-in p{font-size:13.5px;color:rgba(255,255,255,.82);line-height:1.7}
.mkt-tag{
  align-self:flex-start;font-size:11.5px;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:#7fd4ff;margin-bottom:10px;
}

/* ============================ 流程步骤 ============================ */
.steps{display:grid;gap:0;counter-reset:s}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:26px;
  padding:30px 0;border-bottom:1px solid var(--line);
}
.step:first-child{border-top:1px solid var(--line)}
.step-n{
  width:52px;height:52px;border-radius:50%;background:var(--brand-soft);
  color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;flex-shrink:0;
}
.step h3{font-size:19px;font-weight:700;margin-bottom:9px}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ============================ 案例 ============================ */
.case{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;display:flex;flex-direction:column;transition:all .26s;
}
.case:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--brand-line)}
.case-tag{font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--brand);margin-bottom:14px}
.case h3{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:12px}
.case>p{font-size:14px;color:var(--muted);line-height:1.8;flex:1}
.case-metrics{display:flex;gap:26px;margin-top:22px;padding-top:20px;border-top:1px solid var(--line-2);flex-wrap:wrap}
.case-metrics div b{display:block;font-size:21px;font-weight:800;color:var(--brand);letter-spacing:-.01em}
.case-metrics div span{font-size:12px;color:var(--muted-2)}

/* ============================ 引言/评价 ============================ */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 30px;display:flex;flex-direction:column;
}
.quote .stars{color:var(--gold);font-size:14px;letter-spacing:3px;margin-bottom:16px}
.quote blockquote{margin:0;font-size:15.5px;line-height:1.85;color:var(--ink-2);flex:1}
.quote footer{margin-top:22px;padding-top:18px;border-top:1px solid var(--line-2)}
.quote footer b{display:block;font-size:14.5px;color:var(--ink);font-weight:700}
.quote footer span{font-size:13px;color:var(--muted-2)}

/* ============================ 平台入口 ============================ */
.pf{display:flex;gap:22px;padding:26px 0;border-bottom:1px solid var(--line);transition:all .22s}
.pf:hover{padding-left:8px}
.pf:first-child{border-top:1px solid var(--line)}
.pf-ico{
  width:48px;height:48px;border-radius:12px;background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0;
}
.pf-body{flex:1}
.pf-body h3{font-size:17.5px;font-weight:700;margin-bottom:7px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.pf-body p{font-size:14px;color:var(--muted);line-height:1.75}
.pf-side{display:flex;flex-direction:column;align-items:flex-end;gap:8px;flex-shrink:0;justify-content:center}
.pf-side em{font-style:normal;font-size:12px;color:var(--muted-2);letter-spacing:.02em}
.chip{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.03em;
  padding:3px 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand);
  border:1px solid var(--brand-line);
}
.chip.mint{background:var(--mint-soft);color:var(--mint);border-color:#bfe8d8}
.chip.gold{background:var(--gold-soft);color:var(--gold);border-color:#f0dcbb}
.chip.grey{background:var(--bg-sink);color:var(--muted);border-color:var(--line)}

/* ============================ 站点合集 ============================ */
.sitelist{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.site{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-s);
  padding:15px 17px;transition:all .22s;
}
.site:hover{border-color:var(--brand-line);background:var(--brand-soft);transform:translateY(-2px)}
.site-ico{font-size:17px;line-height:1.4;flex-shrink:0}
.site-b{flex:1;min-width:0}
.site-b b{display:block;font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:3px}
.site-b span{display:block;font-size:12.5px;color:var(--muted);line-height:1.6}
.site-b em{display:block;font-style:normal;font-size:11px;color:var(--muted-2);margin-top:5px;font-family:var(--mono);word-break:break-all}

/* ============================ 价格 ============================ */
.price{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px;display:flex;flex-direction:column;transition:all .26s;
}
.price.hot{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.price h3{font-size:16px;font-weight:700;color:var(--muted);letter-spacing:.04em;text-transform:uppercase;font-size:12.5px}
.price .amt{font-size:32px;font-weight:800;color:var(--ink);margin:14px 0 4px;letter-spacing:-.02em}
.price .amt em{font-size:14px;font-style:normal;font-weight:600;color:var(--muted-2);letter-spacing:0}
.price>p{font-size:13.5px;color:var(--muted);line-height:1.7;margin-bottom:20px}
.price ul{display:flex;flex-direction:column;gap:11px;flex:1}
.price li{font-size:14px;color:var(--ink-2);padding-left:22px;position:relative;line-height:1.65}
.price li::before{content:"✓";position:absolute;left:0;color:var(--mint);font-weight:800}
.price .btn{margin-top:26px;justify-content:center}

/* ============================ 内页头 ============================ */
.phero{
  position:relative;background:var(--dark);color:#fff;
  padding:64px 0 58px;overflow:hidden;
}
.phero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 90% 130% at 82% -10%,rgba(21,82,214,.55) 0%,transparent 62%),
             radial-gradient(ellipse 70% 110% at 6% 112%,rgba(11,143,224,.3) 0%,transparent 60%);
}
.phero-in{position:relative;z-index:2}
.crumb{font-size:13px;color:rgba(255,255,255,.55);margin-bottom:18px;display:flex;gap:9px;align-items:center;flex-wrap:wrap}
.crumb a:hover{color:#fff}
.crumb .sl{opacity:.4}
.phero h1{color:#fff;font-size:clamp(27px,3.4vw,42px);font-weight:800;letter-spacing:-.02em;max-width:900px}
.phero p{color:rgba(255,255,255,.78);font-size:16.5px;margin-top:18px;max-width:760px;line-height:1.85}
.phero-acts{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}

/* ============================ 富文本 ============================ */
.prose h2{font-size:23px;font-weight:800;margin:48px 0 16px;letter-spacing:-.015em}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:18px;font-weight:700;margin:32px 0 12px}
.prose p{font-size:15.5px;color:var(--ink-2);line-height:1.9;margin-bottom:16px}
.prose ul{margin:0 0 20px;display:flex;flex-direction:column;gap:11px}
.prose ul li{font-size:15.5px;line-height:1.8;padding-left:22px;position:relative;color:var(--ink-2)}
.prose ul li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--brand)}
.prose strong{color:var(--ink);font-weight:700}
.prose code{
  font-family:var(--mono);font-size:13.5px;color:var(--brand-deep);
}

/* 定义表 */
.dl{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.dl-row{display:grid;grid-template-columns:190px 1fr;gap:24px;padding:20px 0;border-bottom:1px solid var(--line)}
.dl-row dt{font-size:14.5px;font-weight:700;color:var(--ink)}
.dl-row dd{margin:0;font-size:15px;color:var(--muted);line-height:1.8}
.dl-row dd b{color:var(--ink);font-weight:700}

/* ============================ FAQ ============================ */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;padding:22px 40px 22px 0;position:relative;
  font-size:16.5px;font-weight:700;color:var(--ink);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-size:23px;color:var(--brand);font-weight:400;transition:transform .24s;
}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details>p{padding:0 40px 24px 0;font-size:15px;color:var(--muted);line-height:1.85;margin:0}

/* ============================ CTA 布带 ============================ */
.cta{
  position:relative;background:var(--dark);color:#fff;padding:70px 0;overflow:hidden;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 80% 140% at 88% 50%,rgba(21,82,214,.5) 0%,transparent 60%),
             radial-gradient(ellipse 60% 120% at 4% 50%,rgba(11,143,224,.28) 0%,transparent 58%);
}
.cta-in{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta h2{color:#fff;font-size:clamp(22px,2.6vw,32px);font-weight:800;letter-spacing:-.02em;max-width:640px}
.cta p{color:rgba(255,255,255,.72);font-size:15.5px;margin-top:12px;max-width:600px}
.cta-acts{display:flex;gap:14px;flex-wrap:wrap}

/* ============================ 页脚 ============================ */
.foot{background:var(--dark);color:rgba(255,255,255,.66);padding:66px 0 0;font-size:14px}
.foot-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.2fr;gap:38px;padding-bottom:48px}
.foot-brand .brand-cn{color:#fff}
.foot-brand .brand-en{color:rgba(255,255,255,.42)}
.foot-brand>p{margin-top:20px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.56);max-width:280px}
.foot h5{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#fff;margin:0 0 18px}
.foot-col a{display:block;padding:6px 0;font-size:13.8px;color:rgba(255,255,255,.62);transition:all .18s}
.foot-col a:hover{color:#fff;padding-left:5px}
.foot-contact li{padding:7px 0;font-size:13.8px;line-height:1.7;color:rgba(255,255,255,.62)}
.foot-contact b{color:#fff;font-weight:600}
.foot-bot{
  border-top:1px solid rgba(255,255,255,.1);padding:24px 0 30px;
  display:flex;justify-content:space-between;gap:22px;flex-wrap:wrap;align-items:center;
  font-size:13px;color:rgba(255,255,255,.48);
}
.foot-bot a{color:rgba(255,255,255,.48)}
.foot-bot a:hover{color:#fff}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}

/* ============================ 响应式 ============================ */
@media (max-width:1180px){
  .menu>li>a{padding:9px 10px;font-size:14.5px}
  .nav-search{display:none}
}
@media (max-width:1024px){
  .menu,.nav-right .btn{display:none}
  .burger{display:flex}
  .stats-in{grid-template-columns:repeat(3,1fr)}
  .stat:nth-child(3){border-right:0}
  .g4{grid-template-columns:repeat(2,1fr)}
  .foot-top{grid-template-columns:1fr 1fr 1fr;gap:32px}
  .sitelist{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .wrap,.wrap-narrow,.nav-in,.slide-in,.stats-in{padding-left:20px;padding-right:20px}
  .sec{padding:58px 0}
  .g2,.g3,.g4,.quotes{grid-template-columns:1fr}
  .biz{grid-template-columns:1fr}
  .biz-img{min-height:220px;position:relative}
  .biz-body{padding:30px 24px}
  .biz-list{grid-template-columns:1fr}
  .feat{grid-template-columns:1fr;gap:32px}
  .feat.rev .feat-img{order:0}
  .stats-in{grid-template-columns:repeat(2,1fr)}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:26px 10px}
  .stat:nth-child(2n){border-right:0}
  .hero{height:min(84vh,600px)}
  .step{grid-template-columns:48px 1fr;gap:18px}
  .step-n{width:42px;height:42px;font-size:16px}
  .foot-top{grid-template-columns:1fr 1fr}
  .dl-row{grid-template-columns:1fr;gap:8px}
  .sitelist{grid-template-columns:1fr}
  .pf{flex-wrap:wrap}
  .pf-side{align-items:flex-start;width:100%}
  .pf-side em{display:none}
}
@media (max-width:520px){
  .foot-top{grid-template-columns:1fr}
  .brand-en{display:none}
  .cta-acts,.phero-acts,.slide-acts{width:100%}
  .cta-acts .btn,.phero-acts .btn,.slide-acts .btn{flex:1;justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}