/* ============================================================
 *  重庆瑞曜城官网 —— 深蓝科技感样式
 * ============================================================ */

:root{
  --bg:#070b18;
  --card:rgba(255,255,255,.035);
  --card-hover:rgba(255,255,255,.06);
  --line:rgba(148,178,255,.14);
  --line-strong:rgba(148,178,255,.28);
  --txt:#e8eefc;
  --muted:#93a4c4;
  --dim:#6b7c9e;
  --accent:#38bdf8;
  --accent-2:#6366f1;
  --amber:#fbbf24;
  --ok:#34d399;
  --shadow:0 18px 50px -20px rgba(0,0,0,.85);
  --radius:18px;
  --maxw:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 520px at 12% -8%,rgba(56,189,248,.13),transparent 60%),
    radial-gradient(760px 460px at 88% 8%,rgba(99,102,241,.14),transparent 62%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
code{font-family:ui-monospace,Consolas,monospace;font-size:.9em;background:rgba(255,255,255,.07);padding:2px 7px;border-radius:6px;color:#bfdbfe}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:12px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s cubic-bezier(.2,.8,.3,1),box-shadow .22s,background .22s,border-color .22s;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#04101f;box-shadow:0 10px 26px -10px rgba(56,189,248,.75);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -10px rgba(56,189,248,.9)}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:var(--line-strong);color:var(--txt);
}
.btn-ghost:hover{background:var(--card-hover);border-color:var(--accent);transform:translateY(-2px)}
.btn-sm{padding:8px 16px;font-size:14px;border-radius:10px}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(7,11,24,.72);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(148,178,255,.1);
  transition:background .3s,border-color .3s;
}
.nav.solid{background:rgba(7,11,24,.94);border-bottom-color:var(--line)}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:14px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;position:relative;
}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:15.5px;letter-spacing:.3px}
.brand small{font-weight:500;font-size:11.5px;color:var(--dim);display:block;letter-spacing:.5px}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#04101f;display:grid;place-items:center;font-weight:800;font-size:17px;
  box-shadow:0 6px 18px -6px rgba(56,189,248,.8);
}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  padding:8px 13px;border-radius:9px;font-size:14.5px;color:var(--muted);
  transition:color .2s,background .2s;
}
.nav-links a:hover{color:var(--txt);background:rgba(255,255,255,.05)}
.nav-links a.btn{color:#04101f;margin-left:6px}
.nav-toggle{
  display:none;background:none;border:1px solid var(--line-strong);
  color:var(--txt);font-size:19px;padding:5px 12px;border-radius:9px;cursor:pointer;
}
.nav-progress{
  position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;
  padding:168px 0 96px;
  background:#080d1c url("img/hero.jpg") center/cover no-repeat;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(7,11,24,.9) 0%,rgba(7,11,24,.7) 45%,var(--bg) 100%),
    radial-gradient(700px 420px at 78% 40%,rgba(56,189,248,.16),transparent 65%);
}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-inner>*{position:relative;z-index:2}
.tag{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;font-size:13.5px;color:#bfe4ff;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.32);
  backdrop-filter:blur(6px);
}
.tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);animation:pulse 2.2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{margin:22px 0 20px;font-size:clamp(30px,4.4vw,52px);font-weight:800;letter-spacing:-.5px}
.grad{
  background:linear-gradient(120deg,var(--accent),#a78bfa 55%,var(--amber));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{font-size:clamp(15px,1.6vw,17.5px);color:#b9c8e4;max-width:56ch}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}

.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.stat{
  padding:20px 18px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.stat:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.stat b{
  display:block;font-size:32px;font-weight:800;letter-spacing:-.5px;
  background:linear-gradient(120deg,#7dd3fc,#a78bfa);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat b.sm{font-size:22px;letter-spacing:1px}
.stat span{font-size:13.5px;color:var(--muted)}

/* ---------- 区块通用 ---------- */
section{position:relative;z-index:1;padding:92px 0}
.section-head{max-width:720px;margin-bottom:48px}
.kicker{
  font-size:12.5px;font-weight:700;letter-spacing:2.4px;color:var(--accent);
  margin-bottom:12px;display:flex;align-items:center;gap:10px;
}
.kicker::after{content:"";height:1px;width:46px;background:linear-gradient(90deg,var(--accent),transparent)}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:800;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);position:relative;z-index:1}

/* ---------- 卡片 ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  padding:28px 26px;border-radius:var(--radius);
  background:var(--card);border:1px solid var(--line);
  transition:transform .28s cubic-bezier(.2,.8,.3,1),border-color .28s,box-shadow .28s,background .28s;
  position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0;opacity:0;transition:opacity .28s;
  background:radial-gradient(420px 220px at 50% 0%,rgba(56,189,248,.14),transparent 70%);
}
.card:hover{transform:translateY(-6px);border-color:rgba(56,189,248,.42);background:var(--card-hover);box-shadow:var(--shadow)}
.card:hover::before{opacity:1}
.card h3{font-size:18.5px;margin-bottom:10px;position:relative}
.card>p{color:var(--muted);font-size:15px;position:relative}
.card ul{margin-top:16px;display:grid;gap:9px;position:relative}
.card li{position:relative;padding-left:20px;font-size:14.5px;color:#b3c2dd}
.card li::before{
  content:"";position:absolute;left:2px;top:9px;width:7px;height:7px;border-radius:2px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
}
.card-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.28);position:relative;
}

/* ---------- 关于 ---------- */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start}
.about-text p{color:#b3c2dd;margin-bottom:18px;font-size:15.5px}
.about-text strong{color:var(--txt);font-weight:700}
.about-media{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);position:relative;
}
.about-media img{width:100%;height:300px;object-fit:cover}
.about-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(7,11,24,.88));
}
.media-cap{position:absolute;left:22px;bottom:18px;z-index:2;font-size:13.5px;color:#cfe3ff}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:26px}
.fact{
  padding:14px 16px;border-radius:13px;background:var(--card);border:1px solid var(--line);
  transition:border-color .25s,transform .25s;
}
.fact:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.fact span{display:block;font-size:12.5px;color:var(--dim);margin-bottom:3px}
.fact b{font-size:15px;font-weight:700}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.step{
  padding:24px 20px;border-radius:var(--radius);background:var(--card);
  border:1px solid var(--line);transition:transform .25s,border-color .25s;
}
.step:hover{transform:translateY(-5px);border-color:rgba(56,189,248,.4)}
.step b{
  display:grid;place-items:center;width:34px;height:34px;border-radius:10px;margin-bottom:14px;
  font-size:15px;font-weight:800;color:#04101f;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  box-shadow:0 6px 16px -6px rgba(56,189,248,.8);
}
.step h4{font-size:16px;margin-bottom:7px}
.step p{font-size:13.8px;color:var(--muted)}
.tools{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.tool{
  display:flex;align-items:center;gap:10px;padding:11px 18px;border-radius:12px;
  background:var(--card);border:1px solid var(--line);font-size:14.5px;font-weight:600;
  transition:border-color .25s,transform .25s;
}
.tool:hover{border-color:var(--accent);transform:translateY(-2px)}
.tool i{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.tool em{font-style:normal;font-weight:500;font-size:13px;color:var(--muted)}

/* ---------- 合作流程 / 报价 ---------- */
.coop{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.coop-step{
  display:grid;grid-template-columns:38px 1fr;gap:18px;padding:18px 0;
  border-bottom:1px dashed rgba(148,178,255,.16);
}
.coop-step:last-child{border-bottom:none}
.coop-step .n{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  font-weight:800;font-size:14px;color:var(--accent);
  background:rgba(56,189,248,.09);border:1px solid rgba(56,189,248,.3);
}
.coop-step h4{font-size:16px;margin-bottom:4px}
.coop-step p{font-size:14px;color:var(--muted)}
.price-box{
  padding:30px;border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(56,189,248,.09),rgba(99,102,241,.06));
  border:1px solid rgba(56,189,248,.26);
}
.price-box h3{font-size:19px;margin-bottom:6px}
.price-box .sub{font-size:14px;color:var(--muted);margin-bottom:22px}
.price-row{
  display:flex;justify-content:space-between;align-items:baseline;gap:14px;
  padding:13px 0;border-bottom:1px solid rgba(148,178,255,.12);
}
.price-row:last-of-type{border-bottom:none}
.price-row .k{font-size:14.5px;color:#c3d2ec}
.price-row .v{font-size:14px;color:var(--accent);font-weight:600;text-align:right}
.price-note{
  margin-top:20px;padding:14px 16px;border-radius:12px;font-size:13.5px;color:#bfe4ff;
  background:rgba(56,189,248,.08);border:1px solid rgba(56,189,248,.22);
}

/* ---------- 数据安全 ---------- */
.sec-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:center}
.sec-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.sec-media img{width:100%;height:330px;object-fit:cover}
.promises{display:grid;gap:14px}
.promise{
  display:grid;grid-template-columns:26px 1fr;gap:14px;align-items:start;
  padding:16px 18px;border-radius:14px;background:var(--card);border:1px solid var(--line);
  transition:border-color .25s,transform .25s;
}
.promise:hover{border-color:rgba(56,189,248,.38);transform:translateX(3px)}
.promise .ico{
  width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:rgba(52,211,153,.12);border:1px solid rgba(52,211,153,.3);
}
.promise h4{font-size:15.5px;margin-bottom:3px}
.promise p{font-size:14px;color:var(--muted)}

/* ---------- 系统入口 ---------- */
.sys{
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  padding:44px;border-radius:24px;
  background:linear-gradient(140deg,rgba(56,189,248,.1),rgba(99,102,241,.07) 55%,rgba(255,255,255,.02));
  border:1px solid rgba(56,189,248,.24);
  box-shadow:var(--shadow);
}
.sys h3{font-size:26px;margin:16px 0 12px}
.sys>p{color:#b9c8e4;font-size:15.5px;margin-bottom:26px;max-width:52ch}
.status{
  display:inline-flex;align-items:center;gap:9px;padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;border:1px solid var(--line-strong);background:var(--card);
}
.status i{width:7px;height:7px;border-radius:50%;background:var(--dim)}
.status.online{border-color:rgba(52,211,153,.4);color:#a7f3d0;background:rgba(52,211,153,.08)}
.status.online i{background:var(--ok);box-shadow:0 0 10px var(--ok);animation:pulse 2s infinite}
.status.offline{border-color:rgba(248,113,113,.4);color:#fecaca;background:rgba(248,113,113,.08)}
.status.offline i{background:#f87171}
.status.checking i{background:var(--amber);animation:pulse 1.2s infinite}
.sys-panel{padding:26px;border-radius:18px;background:rgba(7,11,24,.55);border:1px solid var(--line)}
.sys-panel h5{margin:0 0 16px;font-size:15px;color:var(--muted);font-weight:600;letter-spacing:.5px}
.sys-panel li{
  display:flex;justify-content:space-between;gap:14px;padding:11px 0;
  border-bottom:1px solid rgba(148,178,255,.1);font-size:14.5px;
}
.sys-panel li:last-child{border-bottom:none}
.sys-panel span{color:var(--dim)}
.sys-panel b{font-weight:600}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.contact-item{
  display:flex;justify-content:space-between;gap:20px;padding:18px 20px;border-radius:13px;
  background:var(--card);border:1px solid var(--line);margin-bottom:10px;
  transition:border-color .25s,transform .25s;
}
.contact-item:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.contact-item .k{font-size:14px;color:var(--dim)}
.contact-item .v{font-size:15px;font-weight:600;text-align:right}
.cta-box{padding:30px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line)}
.cta-box h3{font-size:19px;margin-bottom:10px}
.cta-box p{color:var(--muted);font-size:15px;margin-bottom:20px}
.note{margin-top:14px;font-size:13px;color:var(--dim)}

/* ---------- 页脚 ---------- */
footer{position:relative;z-index:1;border-top:1px solid var(--line);padding:30px 0;background:rgba(6,9,20,.6)}
.foot-inner{
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  font-size:13.5px;color:var(--dim);
}
.foot-links{display:flex;gap:20px;flex-wrap:wrap;align-items:center}
.foot-links a:hover{color:var(--accent)}

/* ---------- 入口页 ---------- */
.enter-page{min-height:78vh;display:grid;place-items:center;padding:140px 24px 80px;position:relative;z-index:1}
.enter-card{
  max-width:560px;width:100%;text-align:center;padding:44px 36px;
  border-radius:22px;background:var(--card);border:1px solid var(--line);
  box-shadow:var(--shadow);backdrop-filter:blur(10px);
}
.enter-card h2{font-size:22px;margin-bottom:10px}
.enter-card>p{color:var(--muted);font-size:15px;margin-bottom:24px}
.enter-card #enterAction{display:flex;flex-direction:column;gap:12px;align-items:stretch;margin-bottom:20px}
.enter-card .btn{justify-content:center}
.enter-tip{font-size:13px;color:var(--dim);line-height:1.7}
.spin{
  width:34px;height:34px;margin:0 auto 20px;border-radius:50%;
  border:3px solid rgba(148,178,255,.2);border-top-color:var(--accent);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 滚动出现 ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.8,.3,1),transform .7s cubic-bezier(.2,.8,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1000px){
  .hero-inner,.about-grid,.sec-grid,.sys,.coop,.contact-grid{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .hero{padding:140px 0 76px}
  .stat-grid{grid-template-columns:repeat(4,1fr)}
  .sec-media img{height:220px}
}
@media (max-width:720px){
  .nav-links{
    display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;
    background:rgba(7,11,24,.97);backdrop-filter:blur(18px);padding:12px 18px 18px;
    border-bottom:1px solid var(--line);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 10px}
  .nav-links a.btn{margin:6px 0 0;text-align:center}
  .nav-toggle{display:block}
  section{padding:64px 0}
  .cards,.steps,.facts,.stat-grid{grid-template-columns:1fr}
  .sys{padding:28px}
  .coop-step{grid-template-columns:32px 1fr;gap:14px}
  .contact-item{flex-direction:column;gap:4px}
  .contact-item .v{text-align:left}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}