/* ===== 点毅科技官网 v2 · 公共样式（全站） ===== */
:root{
  --navy:#0f2b5b; --navy-d:#0a1e42; --navy-l:#1a3d78;
  --blue:#1677ff; --blue-d:#0e5fd8; --blue-l:#eaf2ff;
  --gold:#e8b23a; --gold-d:#c9922a; --gold-l:#fdf4e0;
  --ink:#12161c; --gray:#5b6472; --bg:#f6f8fc; --line:#e6ecf5; --radius:22px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;width:100%;overflow-x:hidden}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased;width:100%;min-height:100vh;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%}
.wrap{max-width:1240px;margin:0 auto;padding:0 32px}
.wrap-wide{max-width:1440px;margin:0 auto;padding:0 48px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 30px;border-radius:999px;font-weight:600;font-size:16px;transition:.3s cubic-bezier(.2,.8,.2,1);cursor:pointer;border:none}
.btn-p{background:linear-gradient(135deg,#2a86ff,#0e5fd8);color:#fff;box-shadow:0 10px 24px rgba(22,119,255,.32)}
.btn-p:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(22,119,255,.5)}
.btn-gold{background:linear-gradient(135deg,#f0c14b,#d19b1f);color:#3a2a00;box-shadow:0 10px 24px rgba(232,178,58,.35)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(232,178,58,.5)}
.btn-g{background:#fff;color:var(--navy);border:1.5px solid #d5e0f2}
.btn-g:hover{background:var(--bg)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.28);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.2);transform:translateY(-3px)}

/* 顶部导航 */
header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.82);backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid var(--line);transition:box-shadow .3s,background .3s}
header.scrolled{box-shadow:0 8px 30px rgba(15,43,91,.08);background:rgba(255,255,255,.94)}
.nav{display:flex;align-items:center;height:70px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px;letter-spacing:.5px;color:var(--navy)}
.logo .mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#22457f,#0f2b5b);display:flex;align-items:center;justify-content:center;color:var(--gold);font-size:22px;font-weight:900;box-shadow:0 6px 16px rgba(15,43,91,.30);flex:none;overflow:hidden}
.logo .mark img{width:100%;height:100%;object-fit:cover;display:block}
.nav-links{margin-left:auto;display:flex;align-items:center;gap:30px;font-size:15px;color:var(--gray);font-weight:500}
.nav-links a{position:relative;transition:.2s}
.nav-links a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:linear-gradient(90deg,#2a86ff,#0e5fd8);transition:width .3s;border-radius:2px}
.nav-links a:not(.btn):hover::after,.nav-links a.active::after{width:100%}
.nav-links a:hover,.nav-links a.active{color:var(--blue)}
.nav-links .btn{padding:10px 22px;font-size:15px}
@media(max-width:1000px){.nav-links a:not(.btn){display:none}}

/* 通用 section */
section{padding:100px 0;position:relative}
.sec-head{text-align:center;max-width:700px;margin:0 auto 62px}
.sec-head .k{color:var(--blue);font-weight:700;font-size:14.5px;letter-spacing:2px}
.sec-head h2{font-size:clamp(28px,3vw,42px);font-weight:900;margin:14px 0 16px;letter-spacing:-.6px}
.sec-head p{color:var(--gray);font-size:17px}

/* 数据带 */
.band{background:linear-gradient(135deg,#0f2b5b,#1a3d78);color:#fff;position:relative;overflow:hidden}
.band::after{content:"";position:absolute;inset:0;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:48px 48px;mask-image:radial-gradient(circle at 50% 50%,#000,transparent 75%);-webkit-mask-image:radial-gradient(circle at 50% 50%,#000,transparent 75%)}
.band .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;position:relative;z-index:2}
.band .n{font-size:clamp(30px,3vw,44px);font-weight:900;color:#fff}
.band .n em{font-style:normal;color:var(--gold);font-size:.65em}
.band .l{opacity:.8;font-size:15px;margin-top:8px}

/* CTA */
.cta{background:linear-gradient(135deg,#0d2650,#1a3d78);color:#fff;text-align:center;position:relative;overflow:hidden}
.cta .cg{position:absolute;border-radius:50%;filter:blur(80px);opacity:.35}
.cta h2{font-size:clamp(28px,3vw,38px);font-weight:900;margin-bottom:16px;position:relative}
.cta p{color:#c4d3ec;margin-bottom:32px;font-size:17px;position:relative}
.cta .btn{position:relative}

/* 页脚 */
footer{background:#0a1830;color:#aeb9cc;padding:60px 0 32px;font-size:14px}
.foot-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:38px;border-bottom:1px solid #1a2c4c}
footer .logo{color:#fff;margin-bottom:16px}
footer .logo .mark{box-shadow:none}
footer p{color:#8b98ad;line-height:1.9}
footer h5{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
footer .fl a{display:block;color:#8b98ad;margin-bottom:10px;transition:.2s}
footer .fl a:hover{color:#fff;transform:translateX(4px)}
.foot-bot{padding-top:24px;text-align:center;color:#6b7890;font-size:13px;line-height:2}
.foot-bot a:hover{color:#fff}
@media(max-width:900px){.foot-top{grid-template-columns:1fr 1fr;gap:28px}}

/* 滚动入场 */
.reveal{opacity:0;transform:translateY(38px);transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}