/* ===== 新锐软件门户 · 设计系统 ===== */
:root{
  --bg:#070b16;
  --bg-2:#0a0f1e;
  --panel:#0e1424;
  --panel-2:#121a30;
  --text:#e9eef7;
  --muted:#8b97b0;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --cyan:#22d3ee;
  --purple:#a855f7;
  --grad:linear-gradient(120deg,var(--cyan),var(--purple));
  --glow-c:rgba(34,211,238,.30);
  --glow-p:rgba(168,85,247,.30);
  --radius:16px;
  --maxw:1120px;
}
[data-theme="light"]{
  --bg:#f6f8fc;
  --bg-2:#eef2f9;
  --panel:#ffffff;
  --panel-2:#f1f4fa;
  --text:#0d1424;
  --muted:#5b6678;
  --line:rgba(13,20,36,.10);
  --line-strong:rgba(13,20,36,.18);
  --glow-c:rgba(34,211,238,.22);
  --glow-p:rgba(168,85,247,.18);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,sans-serif;
  background:var(--bg);color:var(--text);
  line-height:1.65;-webkit-font-smoothing:antialiased;
  transition:background .45s ease,color .45s ease;
  position:relative;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(620px 360px at 12% -8%,var(--glow-c),transparent 60%),
    radial-gradient(560px 380px at 92% 4%,var(--glow-p),transparent 60%);
  opacity:.9;transition:opacity .45s ease;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* 导航 */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
  background:color-mix(in srgb,var(--bg) 72%,transparent);
  border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-size:18px;font-weight:700;letter-spacing:.5px;display:flex;align-items:center;gap:10px}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--grad);box-shadow:0 0 12px var(--cyan)}
.nav-links{display:flex;gap:22px;font-size:14px;color:var(--muted)}
.nav-links a{position:relative;transition:color .2s}
.nav-links a:hover{color:var(--text)}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:2px;background:var(--grad);transition:right .25s}
.nav-links a:hover::after{right:0}
.nav-right{display:flex;align-items:center;gap:14px}
.theme-toggle{width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);
  background:var(--panel);color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.25s}
.theme-toggle:hover{border-color:var(--cyan);box-shadow:0 0 16px var(--glow-c)}
.btn{border:1px solid var(--line-strong);color:var(--text);background:var(--panel);
  padding:9px 18px;border-radius:10px;font-size:14px;cursor:pointer;transition:.25s;font-weight:500}
.btn:hover{border-color:var(--cyan);box-shadow:0 0 18px var(--glow-c);transform:translateY(-1px)}
.btn-primary{background:var(--grad);color:#06101f;border:none;font-weight:600}
.btn-primary:hover{box-shadow:0 8px 26px var(--glow-c);transform:translateY(-2px)}

/* Hero */
.hero{text-align:center;padding:90px 24px 56px}
.kicker{display:inline-block;font-size:12.5px;letter-spacing:1px;color:var(--cyan);
  border:1px solid color-mix(in srgb,var(--cyan) 38%,transparent);padding:5px 14px;border-radius:30px;margin-bottom:22px}
.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.18;font-weight:700;letter-spacing:-.5px}
.hero p.sub{margin:20px auto 0;max-width:620px;font-size:16px;color:var(--muted)}
.bignum{font-size:clamp(54px,9vw,92px);font-weight:800;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;display:inline-block}
.counter-line{margin-top:30px;font-size:15px;color:var(--muted)}
.counter-line b{color:var(--text)}
.hero-cta{margin-top:36px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* 区块标题 */
.section{padding:64px 0}
.sec-head{text-align:center;margin-bottom:40px}
.sec-head h2{font-size:clamp(24px,3.4vw,34px);font-weight:700}
.sec-head p{margin-top:12px;color:var(--muted);font-size:15px}

/* 四大板块 */
.boards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;transition:transform .28s,box-shadow .28s,border-color .28s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;inset:0;background:radial-gradient(320px 160px at 85% 0%,var(--glow-c),transparent 70%);opacity:0;transition:opacity .3s}
.card:hover{transform:translateY(-8px);border-color:color-mix(in srgb,var(--cyan) 55%,transparent);box-shadow:0 18px 40px var(--glow-c)}
.card:hover::before{opacity:.5}
.ico{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,color-mix(in srgb,var(--cyan) 22%,transparent),color-mix(in srgb,var(--purple) 22%,transparent));
  border:1px solid var(--line);margin-bottom:16px;position:relative;z-index:1}
.card h3{font-size:18px;font-weight:600;margin-bottom:8px;position:relative;z-index:1}
.card p{font-size:13.5px;color:var(--muted);line-height:1.7;position:relative;z-index:1}
.card .tag{margin-top:14px;display:inline-block;font-size:12px;color:var(--cyan);
  background:color-mix(in srgb,var(--cyan) 12%,transparent);padding:4px 10px;border-radius:8px;
  opacity:0;transform:translateY(6px);transition:.3s;position:relative;z-index:1}
.card:hover .tag{opacity:1;transform:translateY(0)}

/* 100 功能全景 */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.fchip{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px 14px;text-align:center;transition:.25s;cursor:default}
.fchip:hover{border-color:var(--purple);background:color-mix(in srgb,var(--purple) 8%,var(--panel));transform:scale(1.05)}
.fchip b{display:block;font-size:30px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.fchip span{font-size:13px;color:var(--muted)}

/* 页脚 */
.footer{border-top:1px solid var(--line);padding:34px 0;margin-top:40px}
.footer-in{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;color:var(--muted);font-size:13.5px}
.beian-line{font-size:13px;color:var(--muted)}
.beian{color:var(--cyan);font-weight:600;text-decoration:none;border-bottom:1px dashed currentColor;padding-bottom:1px}
.beian:hover{color:var(--purple);opacity:.92}

/* 滚动揭示 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* 响应式 */
@media (max-width:860px){
  .nav-links{display:none}
  .boards{grid-template-columns:1fr}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:480px){
  .hero{padding:64px 18px 40px}
  .feat-grid{grid-template-columns:1fr 1fr}
  .footer-in{flex-direction:column;align-items:flex-start}
}

/* ===== 三大定制案例（3 列） ===== */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:860px){.cases{grid-template-columns:1fr}}

/* ===== AI 100 主打产品区 ===== */
.ai100{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:center;
  background:linear-gradient(135deg,color-mix(in srgb,var(--cyan) 10%,var(--panel)),color-mix(in srgb,var(--purple) 10%,var(--panel)));
  border:1px solid var(--line-strong);border-radius:var(--radius);padding:30px 34px}
.ai100 .big{font-size:clamp(44px,8vw,78px);font-weight:800;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.app-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--cyan);
  border:1px solid color-mix(in srgb,var(--cyan) 40%,transparent);padding:5px 12px;border-radius:30px}
.ai100 .sub2{color:var(--muted);font-size:14.5px;line-height:1.75}
@media(max-width:640px){.ai100{grid-template-columns:1fr;padding:24px}}

/* ===== 案例详情页 ===== */
.case-hero{padding:88px 24px 26px;text-align:center}
.case-hero h1{font-size:clamp(26px,4vw,40px);font-weight:700;margin-top:14px}
.case-meta{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin:20px 0 0}
.pill{font-size:12px;color:var(--text);background:var(--panel-2);border:1px solid var(--line);padding:5px 12px;border-radius:30px}
.case-section{max-width:880px;margin:0 auto;padding:38px 24px}
.case-section h3{font-size:20px;margin:0 0 18px;font-weight:700}
.case-section h3 .bar{display:inline-block;width:5px;height:18px;background:var(--grad);border-radius:3px;margin-right:10px;vertical-align:-3px}
.case-section p.lead{color:var(--muted);font-size:15px;line-height:1.85}
.feat-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.feat-list li{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:14px;
  display:flex;gap:10px;align-items:flex-start;transition:.22s}
.feat-list li:hover{border-color:var(--cyan);transform:translateY(-3px);box-shadow:0 10px 24px var(--glow-c)}
.feat-list li .dot{color:var(--cyan);font-weight:800;margin-top:1px}
.stack{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.stack span{font-size:12px;color:var(--muted);background:var(--panel-2);border:1px solid var(--line);padding:4px 10px;border-radius:8px}
@media(max-width:640px){.feat-list{grid-template-columns:1fr}.case-section{padding:28px 18px}}

/* ===== 真实界面画廊（物日志截图） ===== */
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;justify-items:center}
.shot{width:100%;max-width:250px;background:var(--panel);border:1px solid var(--line-strong);border-radius:22px;
  padding:9px;position:relative;transition:.28s;overflow:hidden}
.shot:hover{transform:translateY(-8px);border-color:var(--cyan);box-shadow:0 18px 44px var(--glow-c)}
.shot .frame{border-radius:15px;overflow:hidden;background:var(--panel-2);border:1px solid var(--line)}
.shot img{display:block;width:100%;height:auto;aspect-ratio:385/828;object-fit:cover;object-position:top}
.shot figcaption{padding:11px 6px 4px;font-size:13px;line-height:1.55;color:var(--muted);text-align:center}
.shot figcaption b{color:var(--text);display:block;font-size:13.5px;margin-bottom:2px}
.shots-2{grid-template-columns:repeat(2,1fr);max-width:600px;margin:0 auto}
.qr-hero{display:inline-flex;align-items:center;gap:14px;background:var(--panel);border:1px solid var(--line-strong);
  border-radius:14px;padding:10px 18px 10px 10px;margin-top:22px}
.qr-hero img{width:74px;height:74px;border-radius:10px;display:block}
.qr-hero .t{text-align:left}
.qr-hero .t b{display:block;font-size:14px;color:var(--text)}
.qr-hero .t span{font-size:12px;color:var(--muted)}
@media(max-width:820px){.shots{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.shots{grid-template-columns:1fr}.shots-2{grid-template-columns:1fr 1fr}}