/* 小褐同学 — 自托管站点样式
   约束：零外部依赖（无 CDN / 无外链字体 / 无第三方图床），所有视觉均为本地 SVG 与 CSS。 */

:root{
  --blue:#0A16A9;
  --blue-2:#2F55FF;
  --blue-3:#6C8CFF;
  --navy:#070D3F;
  --ink:#0B1230;
  --ink-2:#333D5C;
  --ink-3:#6B7490;
  --line:#E6EAF4;
  --soft:#F6F8FD;
  --soft-2:#EEF2FB;
  --mint:#17C3A2;
  --amber:#FFB020;
  --white:#fff;
  --r-sm:12px;
  --r:18px;
  --r-lg:26px;
  --max:1200px;
  --shadow-s:0 2px 6px rgba(16,26,80,.05);
  --shadow:0 14px 36px rgba(16,26,80,.08);
  --shadow-l:0 30px 70px rgba(10,20,90,.14);
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  color:var(--ink);background:var(--white);line-height:1.72;font-size:16px;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
ul,ol{list-style:none}
::selection{background:rgba(47,85,255,.16)}

.wrap{max-width:var(--max);margin:0 auto;padding:0 30px}
.wrap-n{max-width:920px;margin:0 auto;padding:0 30px}

/* ================= 顶栏 ================= */
.hd{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid rgba(230,234,244,.9);
  transition:box-shadow .25s;
}
.hd.scrolled{box-shadow:0 8px 26px rgba(16,26,80,.07)}
.hd-in{max-width:var(--max);margin:0 auto;padding:0 30px;height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand svg{width:auto;height:42px;flex:none;color:var(--blue)}
.brand-t{display:flex;flex-direction:column;line-height:1.1}
.brand-t b{font-size:17px;letter-spacing:.6px;color:var(--ink);font-weight:700}
.brand-t i{font-style:normal;font-size:10.5px;letter-spacing:2.6px;color:var(--ink-3);text-transform:uppercase;margin-top:3px}

.nav{display:flex;align-items:center;gap:6px}
.nav a{
  font-size:14.5px;color:var(--ink-2);padding:9px 15px;border-radius:10px;
  transition:color .16s,background .16s;white-space:nowrap;
}
.nav a:hover{color:var(--blue);background:var(--soft)}
.nav a.on{color:var(--blue);font-weight:600;background:rgba(10,22,169,.06)}
.hd-tel{
  display:flex;align-items:center;gap:8px;flex:none;
  font-size:14.5px;font-weight:600;color:#fff;
  padding:10px 20px;border-radius:999px;
  background:linear-gradient(135deg,var(--blue),var(--blue-2));
  box-shadow:0 8px 20px rgba(10,22,169,.22);
  transition:transform .18s,box-shadow .18s;
}
.hd-tel:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(10,22,169,.3)}
.hd-tel svg{width:15px;height:15px}

.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;align-items:center;justify-content:center;cursor:pointer}
.burger span{display:block;width:18px;height:2px;background:var(--ink);position:relative;border-radius:2px}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:15px 30px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .18s,box-shadow .18s,background .18s,color .18s;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:none}
.btn-1{background:#fff;color:var(--blue);box-shadow:0 10px 30px rgba(4,10,60,.28)}
.btn-1:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(4,10,60,.36)}
.btn-2{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.3)}
.btn-2:hover{background:rgba(255,255,255,.18)}
.btn-blue{background:linear-gradient(135deg,var(--blue),var(--blue-2));color:#fff;box-shadow:0 12px 28px rgba(10,22,169,.24)}
.btn-blue:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(10,22,169,.32)}
.btn-ghost{border:1px solid rgba(10,22,169,.24);color:var(--blue)}
.btn-ghost:hover{background:rgba(10,22,169,.05)}

/* ================= Hero ================= */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(1200px 600px at 82% -18%, rgba(80,120,255,.5), transparent 60%),
    radial-gradient(900px 500px at 2% 108%, rgba(10,22,169,.75), transparent 62%),
    linear-gradient(155deg,#05092E 0%,#0A16A9 55%,#1628C4 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(ellipse at 50% 20%,#000 10%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 20%,#000 10%,transparent 78%);
}
.hero-glow{
  position:absolute;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(64,110,255,.42),transparent 66%);
  filter:blur(30px);right:-180px;top:-160px;pointer-events:none;
}
.hero-in{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center;
  padding:92px 0 86px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;letter-spacing:.6px;
  padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.22);
  margin-bottom:26px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:#5BE3B8;box-shadow:0 0 0 4px rgba(91,227,184,.2);font-style:normal;flex:none}
.hero h1{font-size:52px;line-height:1.2;letter-spacing:.4px;font-weight:700}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,#9FBBFF,#5BE3B8 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:24px;font-size:16.5px;line-height:1.95;color:rgba(255,255,255,.78);max-width:560px}
.hero-btns{display:flex;gap:14px;margin-top:38px;flex-wrap:wrap}
.hero-meta{display:flex;gap:26px;margin-top:36px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.58)}
.hero-meta span{display:flex;align-items:center;gap:7px}
.hero-meta svg{width:14px;height:14px;stroke:#5BE3B8;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}

/* Hero 设备示意图 */
.hero-vis{position:relative;display:flex;align-items:center;justify-content:center}
.hero-vis .halo{
  position:absolute;inset:-8% -6%;border-radius:50%;
  background:radial-gradient(circle,rgba(120,155,255,.34),transparent 62%);
  filter:blur(24px);
}
.mock{
  position:relative;width:100%;max-width:520px;
  filter:drop-shadow(0 34px 60px rgba(3,8,40,.5));
  animation:float 7s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@media (prefers-reduced-motion:reduce){.mock{animation:none}}

/* ================= 数据条 ================= */
.stats{
  position:relative;z-index:3;
  border-top:1px solid rgba(255,255,255,.14);
  background:rgba(4,8,38,.28);
}
.stats-in{display:grid;grid-template-columns:repeat(4,1fr)}
.stats-in > div{padding:28px 10px;text-align:center;position:relative}
.stats-in > div + div::before{
  content:"";position:absolute;left:0;top:26%;bottom:26%;width:1px;background:rgba(255,255,255,.14);
}
.stats b{display:block;font-size:26px;font-weight:700;letter-spacing:.6px;line-height:1.2}
.stats b small{font-size:13px;font-weight:500;opacity:.7;margin-left:2px}
.stats span{display:block;margin-top:6px;font-size:12.5px;color:rgba(255,255,255,.55);letter-spacing:.4px}

/* ================= 通用区块 ================= */
.sec{padding:104px 0;position:relative}
.sec-soft{background:var(--soft)}
.sec-tight{padding:74px 0}
.sec-hd{max-width:760px;margin-bottom:54px}
.sec-hd.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:800;letter-spacing:2.4px;text-transform:uppercase;
  color:var(--blue-2);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--blue-2);border-radius:2px}
.center .eyebrow::before{display:none}
.sec-hd h2{font-size:38px;line-height:1.3;letter-spacing:.2px;font-weight:700}
.sec-hd p{margin-top:18px;font-size:16.5px;color:var(--ink-3);line-height:1.9}
.sec-hd.center p{margin-left:auto;margin-right:auto}

/* ================= 业务网格 ================= */
.biz{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.biz-card{
  position:relative;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:38px 36px 34px;
  transition:transform .24s cubic-bezier(.2,.7,.3,1),box-shadow .24s,border-color .24s;
}
.biz-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-l);border-color:rgba(47,85,255,.25)}
.biz-card .bg-ico{
  position:absolute;right:-26px;bottom:-30px;width:180px;height:180px;
  opacity:.04;pointer-events:none;
}
.biz-ico{
  width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(10,22,169,.08),rgba(47,85,255,.16));
  margin-bottom:22px;
}
.biz-ico svg{width:27px;height:27px;stroke:var(--blue);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.biz-card h3{font-size:21px;font-weight:700;letter-spacing:.3px}
.biz-card .cap{font-size:12.5px;letter-spacing:1.6px;color:var(--blue-3);text-transform:uppercase;margin-top:7px;font-weight:700}
.biz-card > p{margin-top:14px;font-size:14.8px;color:var(--ink-3);line-height:1.9;position:relative;z-index:2}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.chips li{font-size:12.5px;color:var(--ink-2);padding:5px 13px;border-radius:999px;background:var(--soft);border:1px solid var(--line)}

/* ================= 学习闭环 ================= */
.loop{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:8px}
.loop::before{
  content:"";position:absolute;left:6%;right:6%;top:44px;height:2px;
  background:linear-gradient(90deg,rgba(47,85,255,.06),rgba(47,85,255,.35),rgba(47,85,255,.06));
}
.loop li{position:relative;z-index:1;text-align:center}
.loop .dot{
  width:88px;height:88px;margin:0 auto 20px;border-radius:24px;
  background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow);
}
.loop .dot svg{width:36px;height:36px;stroke:var(--blue);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.loop b{display:block;font-size:16.5px;margin-bottom:8px}
.loop span{font-size:13.8px;color:var(--ink-3);line-height:1.8;display:block;padding:0 6px}
.loop .no{
  position:absolute;top:-8px;left:50%;transform:translateX(28px);
  width:24px;height:24px;border-radius:50%;
  background:linear-gradient(135deg,var(--blue),var(--blue-2));color:#fff;
  font-size:11.5px;font-weight:700;display:flex;align-items:center;justify-content:center;
}

/* ================= 图文分栏 ================= */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split.rev .split-txt{order:2}
.split-txt h2{font-size:34px;line-height:1.34;font-weight:700}
.split-txt > p{margin-top:18px;font-size:16px;color:var(--ink-3);line-height:1.95}
.plist{margin-top:28px;display:grid;gap:18px}
.plist li{display:flex;gap:14px;align-items:flex-start}
.plist .tick{
  width:26px;height:26px;border-radius:9px;flex:none;margin-top:2px;
  background:rgba(23,195,162,.12);display:flex;align-items:center;justify-content:center;
}
.plist .tick svg{width:14px;height:14px;stroke:#0E9E82;fill:none;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
.plist b{display:block;font-size:15.5px;margin-bottom:4px}
.plist span{font-size:14px;color:var(--ink-3);line-height:1.85}

.panel{
  background:linear-gradient(150deg,#0A16A9,#1B2FC9 70%,#2F55FF);
  border-radius:var(--r-lg);padding:40px 38px;color:#fff;position:relative;overflow:hidden;
  box-shadow:var(--shadow-l);
}
.panel::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  border:52px solid rgba(255,255,255,.07);
}
.panel h3{font-size:19px;margin-bottom:6px;position:relative;z-index:2}
.panel .p-sub{font-size:13px;color:rgba(255,255,255,.6);position:relative;z-index:2;margin-bottom:26px}
.prow{display:flex;align-items:center;gap:14px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.13);position:relative;z-index:2}
.prow:last-of-type{border-bottom:none}
.prow .pd{width:10px;height:10px;border-radius:3px;flex:none;background:#5BE3B8}
.prow .pt{flex:1;font-size:14.5px;color:rgba(255,255,255,.9)}
.prow .pv{font-size:15px;font-weight:700}
.prow .pv small{font-size:11.5px;font-weight:500;color:rgba(255,255,255,.6);margin-left:3px}

/* ================= 对比表 ================= */
.cmp{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-s)}
.cmp-hd{display:grid;grid-template-columns:1.4fr 1fr 1fr;background:var(--soft-2)}
.cmp-hd div{padding:20px 26px;font-size:14px;font-weight:700;color:var(--ink-2)}
.cmp-hd div:nth-child(3){color:var(--blue);background:rgba(47,85,255,.07)}
.cmp-row{display:grid;grid-template-columns:1.4fr 1fr 1fr;border-top:1px solid var(--line)}
.cmp-row > div{padding:17px 26px;font-size:14.5px;color:var(--ink-2);display:flex;align-items:center;gap:9px}
.cmp-row > div:first-child{font-weight:600;color:var(--ink)}
.cmp-row > div:nth-child(3){background:rgba(47,85,255,.035);color:var(--ink);font-weight:600}
.cmp .yes,.cmp .no{width:17px;height:17px;flex:none}
.cmp .no{stroke:#C7CEDE;fill:none;stroke-width:2.4;stroke-linecap:round}

/* ================= 模板店 / 空间 ================= */
.spaces{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
.space-card{
  border-radius:var(--r-lg);overflow:hidden;position:relative;
  background:linear-gradient(160deg,#0B1740,#12225F);color:#fff;
  padding:40px 36px;min-height:280px;display:flex;flex-direction:column;justify-content:flex-end;
}
.space-card.light{background:linear-gradient(160deg,#F2F5FE,#E4EAFA);color:var(--ink)}
.space-card h3{font-size:22px;margin-bottom:10px}
.space-card p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.7);max-width:420px}
.space-card.light p{color:var(--ink-3)}
.space-art{position:absolute;inset:0;opacity:.5}
.space-card > *{position:relative;z-index:2}

/* ================= FAQ ================= */
.faq{max-width:860px;margin:0 auto;display:grid;gap:12px}
.faq details{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:box-shadow .2s,border-color .2s;
}
.faq details[open]{box-shadow:var(--shadow);border-color:rgba(47,85,255,.24)}
.faq summary{
  cursor:pointer;padding:20px 56px 20px 24px;font-size:16px;font-weight:600;
  list-style:none;position:relative;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:24px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--blue-2);border-bottom:2px solid var(--blue-2);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s;
}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq .a{padding:0 24px 22px;font-size:14.8px;color:var(--ink-3);line-height:1.9}

/* ================= CTA ================= */
.cta{
  border-radius:var(--r-lg);position:relative;overflow:hidden;
  background:
    radial-gradient(700px 300px at 88% -20%,rgba(91,227,184,.28),transparent 60%),
    linear-gradient(135deg,#0A16A9,#2238E0 68%,#2F55FF);
  color:#fff;padding:66px 60px;
  display:flex;align-items:center;justify-content:space-between;gap:44px;flex-wrap:wrap;
  box-shadow:var(--shadow-l);
}
.cta::after{
  content:"";position:absolute;right:-100px;top:-100px;width:360px;height:360px;border-radius:50%;
  border:64px solid rgba(255,255,255,.06);
}
.cta h2{font-size:31px;line-height:1.4;position:relative;z-index:2;letter-spacing:.3px}
.cta p{margin-top:14px;color:rgba(255,255,255,.78);font-size:15px;position:relative;z-index:2;max-width:560px}
.cta .btn{position:relative;z-index:2;flex:none}

/* ================= 页头 ================= */
.phead{
  background:
    radial-gradient(900px 400px at 78% -30%,rgba(80,120,255,.45),transparent 62%),
    linear-gradient(150deg,#05092E,#0A16A9 72%,#1B2FC9);
  color:#fff;padding:84px 0 74px;position:relative;overflow:hidden;
}
.phead::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(ellipse at 72% 18%,#000,transparent 76%);
  -webkit-mask-image:radial-gradient(ellipse at 72% 18%,#000,transparent 76%);
}
.phead .wrap{position:relative;z-index:2}
.crumb{font-size:13px;color:rgba(255,255,255,.55);margin-bottom:18px}
.crumb a{transition:color .16s}
.crumb a:hover{color:#fff}
.phead h1{font-size:42px;font-weight:700;letter-spacing:.4px}
.phead p{margin-top:16px;color:rgba(255,255,255,.74);font-size:16.5px;max-width:660px;line-height:1.85}

/* ================= 正文排版 ================= */
.prose{max-width:840px}
.prose h2{font-size:27px;margin:52px 0 18px;font-weight:700;letter-spacing:.2px}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:19px;margin:32px 0 12px;font-weight:700}
.prose p{margin-bottom:17px;color:var(--ink-2);line-height:2;font-size:15.8px}
.prose ul{margin:0 0 20px}
.prose li{position:relative;padding-left:22px;margin-bottom:11px;color:var(--ink-2);font-size:15.8px;line-height:1.95}
.prose li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:2px;background:var(--blue-2)}
.prose strong{color:var(--ink)}

/* ================= 联系方式 ================= */
.contact{display:grid;grid-template-columns:1fr 1.05fr;gap:26px;align-items:start}
.cbox{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:38px 36px;box-shadow:var(--shadow-s)}
.cbox h3{font-size:19px;margin-bottom:8px}
.cbox .c-sub{font-size:13.5px;color:var(--ink-3);margin-bottom:22px}
.cline{display:flex;gap:15px;padding:16px 0;border-bottom:1px dashed var(--line)}
.cline:last-child{border-bottom:none}
.cline svg{width:19px;height:19px;flex:none;margin-top:4px;stroke:var(--blue);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.cline b{display:block;font-size:12.5px;color:var(--ink-3);font-weight:500;letter-spacing:.6px;margin-bottom:3px}
.cline span{font-size:16px;font-weight:600;color:var(--ink)}
.cline span a:hover{color:var(--blue-2)}

.form-card{background:linear-gradient(160deg,#F4F7FE,#EAF0FD);border:1px solid #DCE4F7;border-radius:var(--r-lg);padding:38px 36px}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .c-sub{font-size:13.5px;color:var(--ink-3);margin-bottom:24px}
.form{display:grid;gap:16px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field label{display:block;font-size:12.8px;color:var(--ink-3);margin-bottom:7px;letter-spacing:.3px;font-weight:600}
.field input,.field textarea{
  width:100%;padding:13px 15px;font-size:15px;font-family:inherit;color:var(--ink);
  border:1px solid #D9E1F2;border-radius:11px;background:#fff;
  transition:border-color .18s,box-shadow .18s;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue-2);box-shadow:0 0 0 3.5px rgba(47,85,255,.12)}
.field textarea{min-height:124px;resize:vertical}
.form button{
  justify-self:start;cursor:pointer;border:none;font-family:inherit;
  padding:14px 34px;border-radius:999px;font-size:15px;font-weight:600;
  background:linear-gradient(135deg,var(--blue),var(--blue-2));color:#fff;
  box-shadow:0 10px 24px rgba(10,22,169,.22);
  transition:transform .18s,box-shadow .18s;
}
.form button:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(10,22,169,.3)}
.form-note{font-size:12.5px;color:var(--ink-3)}

/* ================= 页脚 ================= */
.ft{background:#050A20;color:rgba(255,255,255,.6);padding:66px 0 0;font-size:14px;position:relative;overflow:hidden}
.ft::before{
  content:"";position:absolute;left:-140px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,85,255,.16),transparent 66%);
}
.ft .wrap{position:relative;z-index:2}
.ft-top{display:grid;grid-template-columns:1.7fr .9fr .9fr 1.2fr;gap:44px;padding-bottom:48px}
.ft-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.ft-brand svg{width:auto;height:40px;color:#fff}
.ft-brand b{color:#fff;font-size:16px;letter-spacing:.5px}
.ft-desc{line-height:1.95;font-size:13.5px;color:rgba(255,255,255,.46);max-width:320px}
.ft h4{color:#fff;font-size:13.5px;margin-bottom:16px;letter-spacing:.8px;font-weight:600}
.ft-col a,.ft-col span{display:block;padding:6px 0;color:rgba(255,255,255,.55);font-size:13.5px;transition:color .16s}
.ft-col a:hover{color:#fff}
.ft-bot{
  border-top:1px solid rgba(255,255,255,.09);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.4);
}
.ft-bot a{color:rgba(255,255,255,.4);transition:color .16s}
.ft-bot a:hover{color:#fff}

/* ================= 入场动画 ================= */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ================= 响应式 ================= */
@media (max-width:1080px){
  .hero-in{grid-template-columns:1fr;gap:44px;padding:76px 0 84px}
  .hero h1{font-size:42px}
  .hero-vis{order:2}
  .mock{max-width:440px}
  .split{grid-template-columns:1fr;gap:42px}
  .split.rev .split-txt{order:0}
  .spaces{grid-template-columns:1fr}
  .sec{padding:78px 0}
}
@media (max-width:900px){
  .nav{display:none}
  .hd-tel{display:none}
  .burger{display:flex}
  .biz{grid-template-columns:1fr}
  .loop{grid-template-columns:1fr 1fr;gap:30px}
  .loop::before{display:none}
  .stats-in{grid-template-columns:1fr 1fr}
  .stats-in > div:nth-child(3)::before{display:none}
  .ft-top{grid-template-columns:1fr 1fr}
  .contact{grid-template-columns:1fr}
  .cmp-hd,.cmp-row{grid-template-columns:1.2fr .9fr .9fr}
  .cmp-hd div,.cmp-row > div{padding:14px 16px;font-size:13.5px}
}
@media (max-width:680px){
  .hero h1{font-size:32px}
  .hero-sub{font-size:15.5px}
  .hero-btns{gap:10px}
  .btn{padding:13px 24px;font-size:14.5px}
  .sec-hd h2{font-size:26px}
  .sec-hd p{font-size:15px}
  .split-txt h2{font-size:26px}
  .phead h1{font-size:30px}
  .phead{padding:56px 0 50px}
  .loop{grid-template-columns:1fr}
  .ft-top{grid-template-columns:1fr;gap:30px}
  .form .row{grid-template-columns:1fr}
  .cta{padding:44px 30px}
  .cta h2{font-size:23px}
  .wrap,.wrap-n{padding:0 20px}
  .hd-in{padding:0 20px;height:66px}
  .brand svg{height:36px}
  .brand-t b{font-size:16px}
  .brand-t i{font-size:9px;letter-spacing:2.4px;margin-top:2px}
  .biz-card{padding:30px 26px}
  .panel,.cbox,.form-card{padding:30px 26px}
  .cmp-hd,.cmp-row{grid-template-columns:1fr}
  .cmp-hd div:nth-child(2){display:none}
  .cmp-row > div:nth-child(2){display:none}
  .stats b{font-size:22px}
}

/* 移动端展开菜单 */
.nav.open{
  display:flex;position:absolute;top:100%;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:0;
  background:#fff;border-bottom:1px solid var(--line);
  padding:8px 20px 18px;box-shadow:0 20px 40px rgba(14,20,48,.1);
}
.nav.open a{padding:14px 4px;border-bottom:1px solid var(--soft);font-size:15.5px;border-radius:0}
.nav.open a.on{background:none}