/* ============================================================
   MindDew 灵萃科技 — 静态官网共享样式（浅色版）
   主体白 + 淡蓝点缀 · VI 智慧蓝 #1D43E0 · 浅蓝 #7FA6F0
   ============================================================ */
:root{
  --bg:#FFFFFF;
  --bg2:#F5F8FD;            /* 淡蓝白副底 */
  --panel:#FFFFFF;
  --line:#E3EAF5;
  --line2:#EDF1F9;

  --blue:#1D43E0;           /* VI 智慧蓝 */
  --blue-deep:#132B96;
  --blue-hi:#4D6FFF;
  --sky:#3D63E8;
  --ice:#7FA6F0;

  --txt:#17233A;
  --muted:#5E6C85;
  --faint:#93A0B5;

  --shadow:0 2px 14px rgba(29,67,224,.06);
  --shadow-hi:0 14px 38px rgba(29,67,224,.13);
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--txt);
  font-family:var(--sans);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  line-height:1.6;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
::selection{background:rgba(29,67,224,.16);color:var(--blue-deep)}

.wrap{width:min(1180px,92%);margin:0 auto}

/* ============ 导航 ============ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s,box-shadow .3s;
}
.nav.scrolled{border-bottom-color:var(--line);box-shadow:0 2px 20px rgba(29,67,224,.05)}
.nav-in{
  width:min(1180px,92%);margin:0 auto;
  height:66px;display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:12px}
.brand .logo-mark{height:46px;width:auto}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  font-size:14px;color:var(--muted);padding:8px 15px;border-radius:8px;
  transition:color .2s,background .2s;font-weight:500;
}
.nav-links a:hover{color:var(--blue);background:rgba(29,67,224,.06)}
.nav-links a.active{color:var(--blue);font-weight:600}
.nav-burger{display:none;background:none;border:none;cursor:pointer;padding:8px}
.nav-burger span{display:block;width:22px;height:2px;background:#39445C;margin:5px 0;transition:.3s;border-radius:2px}

/* ============ HERO ============ */
.hero{
  position:relative;min-height:100svh;
  display:flex;align-items:center;
  padding:130px 0 90px;overflow:hidden;
}
#net{position:absolute;inset:0;width:100%;height:100%;opacity:.9}
.hero-gridbg{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(29,67,224,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(29,67,224,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 75% 62% at 50% 42%,#000 25%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 75% 62% at 50% 42%,#000 25%,transparent 78%);
}
.hero-glow{
  position:absolute;pointer-events:none;border-radius:50%;
  filter:blur(90px);opacity:.55;
}
.g1{width:560px;height:560px;background:rgba(127,166,240,.28);top:-180px;right:-120px}
.g2{width:420px;height:420px;background:rgba(29,67,224,.12);bottom:-160px;left:-100px}
.hero-in{position:relative;z-index:2;width:min(1180px,92%);margin:0 auto}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:11.5px;letter-spacing:2.2px;
  color:var(--blue);border:1px solid rgba(29,67,224,.22);
  background:rgba(29,67,224,.055);
  padding:7px 16px;border-radius:99px;margin-bottom:28px;
}
.tag i{width:6px;height:6px;border-radius:50%;background:var(--blue-hi);
  box-shadow:0 0 0 3px rgba(77,111,255,.18);animation:pulse 2.2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{
  font-size:clamp(38px,5.6vw,68px);font-weight:800;line-height:1.16;
  letter-spacing:.5px;max-width:820px;color:var(--txt);
}
.hero h1 .grad{
  background:linear-gradient(105deg,var(--blue) 10%,var(--blue-hi) 55%,var(--ice) 110%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{
  margin-top:26px;font-size:clamp(15px,1.5vw,18.5px);color:var(--muted);
  max-width:640px;line-height:1.85;
}
.hero-btns{display:flex;gap:16px;margin-top:42px;flex-wrap:wrap;align-items:center}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 30px;border-radius:10px;font-size:15px;font-weight:600;
  transition:transform .2s,box-shadow .25s,background .2s,border-color .2s,color .2s;
  cursor:pointer;
}
.btn-primary{
  background:linear-gradient(120deg,var(--blue) 0%,#2E56F5 100%);
  color:#fff;box-shadow:0 8px 26px rgba(29,67,224,.32);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(29,67,224,.42)}
.btn-ghost{
  border:1px solid var(--line);color:var(--txt);background:#fff;
}
.btn-ghost:hover{border-color:rgba(29,67,224,.45);color:var(--blue);transform:translateY(-2px)}
.hero-tech{
  margin-top:64px;display:flex;gap:10px;flex-wrap:wrap;
  font-family:var(--mono);font-size:10.5px;letter-spacing:1.2px;color:var(--faint);
}
.hero-tech span{border:1px solid var(--line);border-radius:6px;padding:6px 13px;background:#fff}

/* ============ 区块通用 ============ */
.section{padding:104px 0;position:relative}
.section.alt{background:var(--bg2);border-top:1px solid var(--line2);border-bottom:1px solid var(--line2)}
.sec-tag{
  font-family:var(--mono);font-size:11.5px;letter-spacing:2.5px;
  color:var(--blue);margin-bottom:16px;display:block;
}
.sec-title{font-size:clamp(26px,3.4vw,40px);font-weight:800;line-height:1.28;letter-spacing:.3px;color:var(--txt)}
.sec-title .grad{background:linear-gradient(100deg,var(--blue),var(--blue-hi));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.sec-sub{color:var(--muted);font-size:16px;max-width:680px;margin-top:18px;line-height:1.9}
.sec-head{margin-bottom:60px}

/* 滚动淡入 */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1)}
.reveal.on{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.32s}

/* ============ 卡片（对齐：统一 flex 列结构） ============ */
.cards{display:grid;gap:22px;align-items:stretch}
.c3{grid-template-columns:repeat(3,1fr)}
.c2{grid-template-columns:repeat(2,1fr)}
.card{
  background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 30px;position:relative;overflow:hidden;
  transition:transform .3s,border-color .3s,box-shadow .3s;
  display:flex;flex-direction:column;align-items:flex-start;
  box-shadow:var(--shadow);
}
.card:hover{transform:translateY(-5px);border-color:rgba(77,111,255,.45);box-shadow:var(--shadow-hi)}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--blue-hi),transparent);
  opacity:0;transition:opacity .3s;
}
.card:hover::before{opacity:1}
.card .ico{
  width:48px;height:48px;flex-shrink:0;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(29,67,224,.07);border:1px solid rgba(29,67,224,.14);
  margin-bottom:22px;color:var(--blue);
}
.card h3{font-size:19px;font-weight:700;margin-bottom:12px;letter-spacing:.2px;color:var(--txt)}
.card p{font-size:14.5px;color:var(--muted);line-height:1.85}
.card .more{
  display:inline-flex;align-items:center;gap:7px;
  margin-top:auto;padding-top:20px;
  font-size:13.5px;color:var(--blue);font-weight:600;
}
.card .more:hover{color:var(--blue-hi)}
.card .num{
  position:absolute;top:22px;right:26px;
  font-family:var(--mono);font-size:12px;color:#C4D2EA;letter-spacing:1px;
}

/* ============ 步骤/流水线（等高对齐） ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.step{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;position:relative;overflow:hidden;
  transition:transform .3s,border-color .3s,box-shadow .3s;
  display:flex;flex-direction:column;box-shadow:var(--shadow);
}
.step:hover{transform:translateY(-4px);border-color:rgba(77,111,255,.45);box-shadow:var(--shadow-hi)}
.step .sn{
  font-family:var(--mono);font-size:40px;font-weight:700;line-height:1;
  height:46px;display:flex;align-items:flex-end;
  color:transparent;-webkit-text-stroke:1px rgba(29,67,224,.45);
  margin-bottom:18px;
}
.step h3{font-size:17.5px;font-weight:700;margin-bottom:10px;color:var(--txt)}
.step p{font-size:14px;color:var(--muted);line-height:1.8}

/* ============ 技术条（等高对齐） ============ */
.specs{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:stretch}
.spec{
  border:1px solid var(--line);border-radius:12px;padding:24px 22px;
  background:#F8FAFE;display:flex;flex-direction:column;
}
.spec b{
  display:flex;align-items:baseline;min-height:40px;
  font-size:32px;font-weight:800;color:var(--blue);font-family:var(--mono);
  letter-spacing:-.5px;
}
.spec b em{font-style:normal;color:var(--sky);font-size:14px;margin-left:4px;font-family:var(--sans);font-weight:600}
.spec span{font-size:13px;color:var(--muted);display:block;margin-top:6px;line-height:1.6}

/* ============ 分栏 ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.split .pic{
  border:none;border-radius:16px;overflow:hidden;
  background:transparent;
  padding:10px;box-shadow:none;
}

/* ============ CTA ============ */
.cta{
  position:relative;overflow:hidden;text-align:center;
  border:1px solid rgba(29,67,224,.16);border-radius:22px;
  padding:76px 40px;
  background:
    radial-gradient(ellipse 60% 90% at 50% -20%,rgba(127,166,240,.28),transparent 70%),
    linear-gradient(180deg,#F8FAFF,#F2F6FD);
}
.cta h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:.4px;color:var(--txt)}
.cta p{color:var(--muted);margin:16px auto 34px;max-width:560px;font-size:15.5px}
.cta p.keep-line{max-width:none;white-space:nowrap}
@media (max-width:760px){.cta p.keep-line{white-space:normal}}

/* ============ 页脚 ============ */
footer{border-top:1px solid var(--line);padding:56px 0 40px;background:var(--bg2)}
.foot{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.foot .fb{max-width:340px}
.foot .fb .logo-full{height:58px;width:auto;margin-bottom:16px}
.foot .fb p{font-size:13.5px;color:var(--faint);line-height:1.8}
.foot h4{font-size:13px;letter-spacing:1.5px;color:var(--muted);margin-bottom:16px;font-weight:600}
.foot ul{list-style:none}
.foot ul li{margin-bottom:10px;font-size:14px;color:var(--faint);line-height:1.55}
.foot ul a{transition:color .2s}
.foot ul a:hover{color:var(--blue)}
.foot .mail{font-family:var(--mono);font-size:13.5px;color:var(--blue)}
.copy{
  margin-top:46px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:12.5px;color:var(--faint);
}
.copy .mono{font-family:var(--mono);letter-spacing:.6px}

/* ============ 页面内页 hero ============ */
.pagehero{
  position:relative;padding:170px 0 90px;overflow:hidden;
  border-bottom:1px solid var(--line2);
}
.pagehero .hero-gridbg{opacity:.7}
.pagehero h1{font-size:clamp(32px,4.6vw,54px);font-weight:800;line-height:1.2;max-width:760px;color:var(--txt)}
.pagehero p.lead{margin-top:22px;color:var(--muted);max-width:640px;font-size:16.5px;line-height:1.9}
.pagehero h1 .grad{background:linear-gradient(100deg,var(--blue),var(--blue-hi));
  -webkit-background-clip:text;background-clip:text;color:transparent}

/* ============ 联系 ============ */
.contact-box{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  border:1px solid var(--line);border-radius:20px;overflow:hidden;
  background:#fff;box-shadow:var(--shadow);
}
.contact-l{padding:56px 48px;border-right:1px solid var(--line2)}
.contact-l h3{font-size:24px;font-weight:800;margin-bottom:14px;color:var(--txt)}
.contact-l p{color:var(--muted);font-size:15px;line-height:1.9}
.contact-l .kv{margin-top:30px}
.contact-l .kv b{display:block;font-family:var(--mono);font-size:11px;letter-spacing:2px;color:var(--faint);margin-bottom:6px;font-weight:600}
.contact-l .kv span{font-size:15.5px;color:var(--txt)}
.contact-r{
  display:flex;flex-direction:column;justify-content:center;align-items:flex-start;
  padding:56px 48px;gap:18px;
  background:radial-gradient(ellipse at 80% 20%,rgba(127,166,240,.2),transparent 70%),#FBFCFF;
}
.mailbtn{
  display:inline-flex;align-items:center;gap:12px;
  font-family:var(--mono);font-size:clamp(15px,2vw,19px);font-weight:600;color:#fff;
  background:linear-gradient(120deg,var(--blue),#2E56F5);
  padding:18px 30px;border-radius:12px;
  box-shadow:0 10px 30px rgba(29,67,224,.32);
  transition:transform .2s,box-shadow .25s;
}
.mailbtn:hover{transform:translateY(-2px);box-shadow:0 16px 42px rgba(29,67,224,.45)}
.contact-r small{color:var(--faint);font-size:13px;line-height:1.7}

/* ============ 列表项 ============ */
.flist{display:flex;flex-direction:column;gap:0}
.fitem{
  display:grid;grid-template-columns:200px 1fr;gap:34px;
  padding:30px 6px;border-bottom:1px solid var(--line2);
  transition:background .2s;border-radius:6px;
}
.fitem:first-child{border-top:1px solid var(--line2)}
.fitem:hover{background:rgba(29,67,224,.035)}
.fitem .fk{font-family:var(--mono);font-size:12px;letter-spacing:1.5px;color:var(--blue);padding-top:4px}
.fitem .fv b{display:block;font-size:17px;font-weight:700;margin-bottom:8px;color:var(--txt)}
.fitem .fv p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ============ 名字由来 ============ */
.name-wrap{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:20px;
  background:linear-gradient(115deg,#FFFFFF 30%,#EEF4FE 100%);
  box-shadow:var(--shadow);
  padding:64px 64px 68px;
}
.name-txt{position:relative;z-index:1;max-width:600px}

/* ============ 响应式 ============ */
@media (max-width:960px){
  .c3,.steps,.specs{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:40px}
  .contact-box{grid-template-columns:1fr}
  .contact-l{border-right:none;border-bottom:1px solid var(--line2)}
  .fitem{grid-template-columns:1fr;gap:8px}
  .nav-links{
    position:fixed;inset:66px 0 auto 0;
    background:rgba(255,255,255,.98);backdrop-filter:blur(16px);
    flex-direction:column;align-items:stretch;padding:18px 6%;gap:4px;
    border-bottom:1px solid var(--line);
    transform:translateY(-130%);transition:transform .35s;
  }
  .nav-links.open{transform:none}
  .nav-links a{padding:13px 14px;font-size:15px}
  .nav-burger{display:block}
  .name-wrap{padding:44px 36px}
}
@media (max-width:620px){
  .c3,.c2,.steps,.specs{grid-template-columns:1fr}
  .section{padding:72px 0}
  .hero{padding-top:110px}
  .contact-l,.contact-r{padding:36px 28px}
}