/* 皓年科技 · 现代简约 */
:root{
  --bg:#ffffff;
  --surface:#f6f7f9;
  --ink:#0b0d12;
  --text:#1f2430;
  --muted:#6b7280;
  --line:#e7e9ee;
  --accent:#2f5bff;
  --accent-soft:#eef2ff;
  --dark:#0d1017;
  --radius:20px;
  --sans:Inter,-apple-system,BlinkMacSystemFont,'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC','Segoe UI',sans-serif;
  --mono:'SF Mono',ui-monospace,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;line-height:1.6}
a{color:inherit;text-decoration:none}
button{font:inherit;border:0;cursor:pointer;background:none;color:inherit}
h1,h2,h3{color:var(--ink);font-weight:700;margin:0}
.wrap{max-width:1180px;margin:auto;padding:0 32px}

/* 通用元素 */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.eyebrow:before{content:'';width:6px;height:6px;border-radius:50%;background:currentColor}
.btn,.nav-cta,.outline{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:46px;padding:0 22px;border-radius:999px;font-size:14px;font-weight:600;transition:background .2s,color .2s,transform .2s,box-shadow .2s}
.btn,.nav-cta{background:var(--ink);color:#fff}
.btn:hover,.nav-cta:hover{background:var(--accent);transform:translateY(-1px);box-shadow:0 8px 20px -8px rgba(47,91,255,.6)}
.outline{border:1px solid rgba(255,255,255,.22);color:#fff}
.outline:hover{background:#fff;color:var(--ink)}
.under{font-size:14px;font-weight:600;color:var(--text);display:inline-flex;align-items:center;gap:6px}
.under span{transition:transform .2s}
.under:hover span{transform:translateY(3px)}

/* 导航 */
.nav{position:fixed;inset:0 0 auto;z-index:10;padding:18px 0;transition:padding .25s,background .25s,border-color .25s;border-bottom:1px solid transparent}
.nav.scrolled{padding:12px 0;background:rgba(255,255,255,.82);backdrop-filter:saturate(180%) blur(16px);-webkit-backdrop-filter:saturate(180%) blur(16px);border-bottom-color:var(--line)}
.nav-inner{display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:12px;font-size:15px;font-weight:700;color:var(--ink);line-height:1.2;margin-right:auto}
.brand small{display:block;font-size:10px;font-weight:500;letter-spacing:.14em;color:var(--muted);margin-top:3px}
.mark{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;background:var(--ink);color:#fff;font-size:16px;font-weight:700}
.nav nav{display:flex;gap:4px;font-size:14px;color:var(--muted)}
.nav nav a{padding:8px 14px;border-radius:999px;transition:color .2s,background .2s}
.nav nav a:hover{color:var(--ink);background:var(--surface)}
.nav-cta{height:40px;padding:0 18px;font-size:13px}
.menu{display:none;font-size:22px;color:var(--ink)}
body.haonian .lang-switch{margin-left:0;padding:3px;gap:2px;border:1px solid var(--line);border-radius:999px;background:#fff}
body.haonian .lang-switch button{padding:5px 9px;border:0;border-radius:999px;font:500 11px var(--sans);color:var(--muted);opacity:1}
body.haonian .lang-switch button.active{background:var(--ink);color:#fff;border:0}

/* 首屏 */
.hero{position:relative;padding:168px 0 110px;overflow:hidden}
.hero:before{content:'';position:absolute;inset:0;background:radial-gradient(600px 400px at 80% 20%,rgba(47,91,255,.10),transparent 70%),linear-gradient(var(--line) 1px,transparent 1px) 0 0/100% 64px;mask-image:linear-gradient(to bottom,#000 30%,transparent);-webkit-mask-image:linear-gradient(to bottom,#000 30%,transparent);opacity:.7;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr 1fr;gap:72px;align-items:center}
.hero h1{font-size:clamp(48px,6.4vw,84px);line-height:1.05;letter-spacing:-.035em;margin:22px 0 24px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-copy>p{max-width:500px;font-size:18px;line-height:1.75;color:var(--muted);margin:0 0 36px}
.actions{display:flex;gap:28px;align-items:center}

.system{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:0 1px 2px rgba(16,24,40,.04),0 24px 48px -16px rgba(16,24,40,.12)}
.system-head{display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:600;color:var(--muted)}
.system-head i{font-style:normal;display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;background:#ecfdf3;color:#067647}
.system-head i:before{content:'';width:6px;height:6px;border-radius:50%;background:#12b76a;box-shadow:0 0 0 3px rgba(18,183,106,.18)}
.system-title{font-size:20px;font-weight:700;color:var(--ink);margin-top:22px}
.chart{position:relative;height:190px;margin:20px 0 24px;background:repeating-linear-gradient(to bottom,transparent 0 46px,var(--line) 46px 47px)}
.chart svg{position:absolute;inset:0;width:100%;height:100%}
.system-foot{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.system-foot div{padding:16px;border-radius:14px;background:var(--surface)}
.system-foot span{display:block;font-size:12px;color:var(--muted)}
.system-foot b{display:block;font-size:24px;letter-spacing:-.02em;color:var(--ink);margin-top:4px}
.system-foot b.up{color:var(--accent)}

.signal{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.signal .wrap{display:flex;justify-content:space-between;gap:24px;padding-top:22px;padding-bottom:22px;font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:#9aa0ab;white-space:nowrap}

/* 区块 */
.section,.stories,.company{padding:128px 0}
.intro{display:flex;justify-content:space-between;align-items:flex-end;gap:48px;margin-bottom:56px}
.intro h2,.platform h2,.cta h2{font-size:clamp(34px,4.2vw,52px);line-height:1.15;letter-spacing:-.03em;margin:16px 0 0}
.intro>p{max-width:380px;font-size:16px;line-height:1.75;color:var(--muted);margin:0}

.solution-grid,.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.solution-grid article{display:flex;flex-direction:column;padding:32px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:border-color .25s,box-shadow .25s,transform .25s}
.solution-grid article:hover{border-color:#cfd6ff;transform:translateY(-4px);box-shadow:0 20px 40px -20px rgba(47,91,255,.25)}
.solution-icon{width:48px;height:48px;display:grid;place-items:center;border-radius:14px;background:var(--accent-soft);color:var(--accent);margin-bottom:40px}
.solution-icon svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.solution-grid article>span{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#9aa0ab}
.solution-grid h3{font-size:22px;margin:8px 0 12px}
.solution-grid p{font-size:15px;line-height:1.75;color:var(--muted);margin:0 0 28px}
.solution-grid a{margin-top:auto;font-size:14px;font-weight:600;color:var(--accent)}

/* 平台 */
.platform{padding:128px 0;background:var(--dark);color:#c9ced8}
.platform-grid,.company-grid{display:grid;grid-template-columns:1fr 1fr;gap:96px;align-items:center}
.platform .eyebrow{color:#8ea6ff}
.platform h2{color:#fff}
.platform p{max-width:460px;font-size:16px;line-height:1.8;color:#9aa3b2;margin:24px 0 36px}
.stack{display:grid;gap:12px}
.stack-row{display:grid;grid-template-columns:64px 1fr auto;gap:8px 18px;align-items:center;padding:20px 22px;border:1px solid rgba(255,255,255,.08);border-radius:16px;background:rgba(255,255,255,.03)}
.stack-row b{font:600 12px var(--mono);color:#8ea6ff}
.stack-row span{font-size:15px;color:#fff}
.stack-row i{font:500 13px var(--mono);font-style:normal;color:#9aa3b2}
.stack-row em{grid-column:1/-1;height:4px;border-radius:4px;background:rgba(255,255,255,.08);position:relative;overflow:hidden}
.stack-row em:after{content:'';position:absolute;inset:0 auto 0 0;width:var(--w);border-radius:inherit;background:linear-gradient(90deg,#2f5bff,#8ea6ff)}

/* 客户故事 */
.stories{background:var(--surface)}
.story-grid article{display:flex;flex-direction:column;min-height:340px;padding:32px;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}
.story-grid small{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}
.story-grid h3{font-size:20px;line-height:1.5;letter-spacing:-.01em;margin:20px 0 auto}
.story-grid strong{display:block;font-size:52px;font-weight:700;letter-spacing:-.04em;line-height:1;color:var(--ink);padding-top:28px;margin-top:28px;border-top:1px solid var(--line)}
.story-grid span{font-size:14px;color:var(--muted);margin-top:8px}

/* 公司 */
.quote{font-size:clamp(26px,2.8vw,38px);font-weight:700;line-height:1.35;letter-spacing:-.025em;color:var(--ink)}
.quote em{font-style:normal;color:var(--accent)}
.quote small{display:block;font-size:14px;font-weight:500;letter-spacing:0;color:var(--muted);margin-top:28px}
.company p{font-size:16px;line-height:1.85;color:var(--muted);margin:20px 0 40px}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.facts div{padding-top:20px;border-top:1px solid var(--line)}
.facts b{display:block;font-size:40px;font-weight:700;letter-spacing:-.03em;color:var(--ink);line-height:1.1}
.facts span{font-size:14px;color:var(--muted)}

/* 扩展区块（lang.js 注入） */
body.haonian .extra-section{padding:128px 0;background:var(--surface);color:var(--text)}
body.haonian .extra-section h2{font-size:clamp(34px,4.2vw,52px);line-height:1.15;letter-spacing:-.03em;margin:16px 0 18px}
body.haonian .extra-section>.wrap>p{font-size:16px;color:var(--muted);opacity:1}
body.haonian .extra-grid{gap:20px}
body.haonian .extra-grid article{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
body.haonian .extra-grid b{font:600 12px var(--mono);color:var(--accent);opacity:1}
body.haonian .extra-grid h3{font-size:19px;margin:20px 0 8px}
body.haonian .extra-grid p{font-size:15px;color:var(--muted);opacity:1;margin:0}

/* CTA */
.cta{padding:128px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:72px 64px;border-radius:28px;background:var(--accent);background-image:radial-gradient(500px 300px at 100% 0,rgba(255,255,255,.2),transparent 70%)}
.cta .eyebrow{color:#dbe4ff}
.cta h2{color:#fff}
.cta .btn{background:#fff;color:var(--ink);flex-shrink:0}
.cta .btn:hover{background:var(--ink);color:#fff;box-shadow:none}

/* 页脚 */
footer{padding:32px 0;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;gap:16px}
footer a{color:var(--ink);font-weight:500}
footer a:hover{color:var(--accent)}

/* 弹窗 */
.modal{position:fixed;inset:0;z-index:30;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(11,13,18,.45);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.modal[hidden]{display:none}
.modal-box{position:relative;width:min(480px,100%);padding:40px;border-radius:24px;background:#fff;box-shadow:0 32px 64px -16px rgba(16,24,40,.3)}
.modal-box h2{font-size:28px;letter-spacing:-.02em;margin:14px 0 8px}
.modal-box>p{font-size:14px;color:var(--muted);margin:0 0 8px}
.close{position:absolute;right:18px;top:16px;width:34px;height:34px;border-radius:50%;font-size:22px;line-height:1;color:var(--muted)}
.close:hover{background:var(--surface);color:var(--ink)}
.modal label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-top:18px}
.modal input,.modal textarea{display:block;width:100%;margin-top:8px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--surface);font:400 14px var(--sans);color:var(--ink);transition:border-color .2s,background .2s,box-shadow .2s}
.modal input:focus,.modal textarea:focus{outline:0;border-color:var(--accent);background:#fff;box-shadow:0 0 0 4px rgba(47,91,255,.12)}
.modal textarea{height:96px;resize:vertical}
.modal .btn{width:100%;margin-top:24px}
.status,.draft{display:block;font-size:13px;margin-top:12px;color:var(--muted)}
.draft{color:var(--accent);font-weight:600}
.draft[hidden]{display:none}

/* 响应式 */
@media(max-width:960px){
  .hero-grid,.platform-grid,.company-grid{grid-template-columns:1fr;gap:56px}
  .solution-grid,.story-grid{grid-template-columns:1fr}
  .intro{display:block}
  .intro>p{margin-top:20px}
  .cta-inner{display:block;padding:48px 36px}
  .cta .btn{margin-top:28px}
}
@media(max-width:850px){
  .wrap{padding:0 20px}
  .nav nav,.nav-cta{display:none}
  .menu{display:block}
  .nav nav.mobile{display:flex;flex-direction:column;position:absolute;top:64px;left:20px;right:20px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 20px 40px -16px rgba(16,24,40,.2)}
  .nav nav.mobile a{padding:12px 14px}
  body.haonian .lang-switch{position:absolute;right:58px;top:18px}
  body.haonian .nav.scrolled .lang-switch{top:12px}
  .brand>span:nth-child(2){font-size:14px}
  .brand small{display:none}
  .hero{padding:130px 0 80px}
  .signal .wrap{justify-content:flex-start;overflow-x:auto;scrollbar-width:none}
  .section,.stories,.company,.platform,body.haonian .extra-section{padding:88px 0}
  .cta{padding:88px 0}
  footer .wrap{flex-direction:column}
}
@media(max-width:480px){
  .hero h1{font-size:44px}
  .hero-copy>p{font-size:16px}
  .actions{flex-direction:column;align-items:flex-start;gap:20px}
  .system{padding:20px}
  .facts{grid-template-columns:1fr 1fr 1fr;gap:16px}
  .facts b{font-size:30px}
  .modal-box{padding:32px 24px}
}