/* =========================================================
   青岛星运创新科技 · 官网样式 v3
   设计原则:克制 + 动态点缀 + 紧凑节奏
   ========================================================= */

:root{
  --bg:#08090F;
  --bg-soft:#0E1019;
  --line:rgba(255,255,255,.07);
  --line-2:rgba(255,255,255,.12);
  --text:#EDEEF5;
  --text-2:#9CA3B8;
  --text-3:#5F667E;
  --brand-1:#7C5CFF;
  --brand-2:#22D3EE;
  --grad: linear-gradient(120deg, #7C5CFF 0%, #22D3EE 100%);
  --radius: 14px;
  --radius-lg: 24px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:15px;line-height:1.65;
  letter-spacing:.005em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none;cursor:pointer}
button{font:inherit;background:none;border:none;color:inherit;cursor:pointer}
ul{list-style:none}

/* ========== 容器 ========== */
.container{max-width:1180px;margin:0 auto;padding:0 32px}

/* ========== 背景 ========== */
#bgCanvas{
  position:fixed;inset:0;z-index:-2;
  width:100%;height:100%;
  background:var(--bg);
}
.bg-glow{
  position:fixed;border-radius:50%;
  filter:blur(140px);z-index:-1;pointer-events:none;
}
.glow-1{
  width:560px;height:560px;
  background:#7C5CFF;
  top:-120px;left:-100px;
  opacity:.3;
}
.glow-2{
  width:520px;height:520px;
  background:#22D3EE;
  top:8%;right:-160px;
  opacity:.22;
}

/* ========== 文字工具 ========== */
.grad{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}

/* ========== 按钮 ========== */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 24px;border-radius:99px;
  font-weight:600;font-size:14.5px;
  transition:all .25s ease;
  white-space:nowrap;
}
.btn svg{width:15px;height:15px}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 8px 24px -8px rgba(124,92,255,.55);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 30px -8px rgba(124,92,255,.65)}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-2);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.22)}

/* ========== NAV ========== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  padding:18px 0;
  transition:all .3s ease;
}
.nav.scrolled{
  background:rgba(8,9,15,.72);
  backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid var(--line);
  padding:12px 0;
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{width:30px;height:30px;flex:none;
  filter:drop-shadow(0 4px 14px rgba(124,92,255,.5));
}
.logo-text{font-weight:700;font-size:16px;letter-spacing:.04em}
.nav-links{display:flex;gap:36px}
.nav-links a{
  font-size:14px;color:var(--text-2);
  transition:color .2s;
}
.nav-links a:hover{color:#fff}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:99px;
  font-size:13.5px;font-weight:600;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-2);
  color:#fff;
  transition:all .25s;
}
.nav-cta svg{width:13px;height:13px}
.nav-cta:hover{background:var(--grad);border-color:transparent;transform:translateY(-1px)}
.nav-burger{display:none;flex-direction:column;gap:5px;width:24px}
.nav-burger span{height:2px;background:#fff;border-radius:2px}

/* ========== HERO — 左右双列 ========== */
.hero{
  position:relative;
  padding:140px 0 70px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:60px;
  align-items:center;
}
.hero-text{max-width:560px}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:99px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-2);
  font-size:13px;color:var(--text-2);
  margin-bottom:28px;
}
.hero-badge .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 10px var(--brand-2);
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.85)}}

.hero-title{
  font-size:clamp(36px,4.6vw,60px);
  font-weight:700;
  line-height:1.12;letter-spacing:-.025em;
  margin-bottom:24px;
}
.hero-sub{
  font-size:16.5px;color:var(--text-2);
  margin-bottom:36px;
  line-height:1.75;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

/* === 右侧可视化面板 === */
.hero-visual{
  position:relative;
  height:440px;
}
.panel-glow{
  position:absolute;inset:-30px;border-radius:36px;
  background:
    radial-gradient(circle at 30% 30%, rgba(124,92,255,.5), transparent 55%),
    radial-gradient(circle at 70% 70%, rgba(34,211,238,.45), transparent 55%);
  filter:blur(40px);opacity:.7;
  animation:glowPulse 6s ease-in-out infinite alternate;
}
@keyframes glowPulse{
  from{opacity:.5;transform:scale(.95)}
  to{opacity:.85;transform:scale(1.05)}
}
.panel{
  position:relative;
  height:100%;
  background:linear-gradient(180deg, rgba(20,22,45,.85), rgba(11,13,31,.92));
  border:1px solid var(--line-2);
  border-radius:20px;
  backdrop-filter:blur(20px);
  box-shadow:0 30px 80px -30px rgba(0,0,0,.7);
  overflow:hidden;
  display:flex;flex-direction:column;
}
.panel-head{
  display:flex;align-items:center;gap:14px;
  padding:12px 18px;
  border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.02);
}
.dots{display:flex;gap:6px}
.dots i{width:10px;height:10px;border-radius:50%;background:#3a3f5c}
.dots i:nth-child(1){background:#ff5f57}
.dots i:nth-child(2){background:#febc2e}
.dots i:nth-child(3){background:#28c840}
.panel-title{
  flex:1;font-size:11.5px;color:var(--text-2);
  font-family:"Space Grotesk",sans-serif;letter-spacing:.18em;
}
.panel-tag{
  font-size:11px;padding:3px 9px;border-radius:99px;
  background:rgba(34,211,238,.12);color:var(--brand-2);
  font-weight:600;
}

/* === 轮播指示点 === */
.slide-dots{display:flex;gap:5px;align-items:center}
.slide-dots i{
  display:block;width:14px;height:3px;border-radius:99px;
  background:rgba(255,255,255,.12);
  transition:all .4s ease;
}
.slide-dots i.active{
  background:var(--grad);
  width:22px;
  box-shadow:0 0 10px rgba(124,92,255,.6);
}

/* === 轮播舞台 === */
.panel-stage{
  position:relative;
  flex:1;
  overflow:hidden;
}
.slide{
  position:absolute;
  inset:0;
  display:flex;flex-direction:column;
  opacity:0;
  transform:translateY(12px);
  transition:opacity .55s ease, transform .55s ease;
  pointer-events:none;
}
.slide.active{
  opacity:1;
  transform:translateY(0);
  pointer-events:auto;
}
.slide-scene{
  padding:10px 22px;
  font-family:"Space Grotesk",sans-serif;
  font-size:11.5px;color:var(--brand-2);
  letter-spacing:.08em;
  border-bottom:1px solid var(--line);
  background:rgba(124,92,255,.04);
}
.slide-body{
  padding:14px 22px 12px;
  flex:1;
  font-family:"SF Mono","Menlo",monospace;
  font-size:12.5px;line-height:1.8;
  color:#cfd3e8;overflow:hidden;
}
.slide-body pre{margin:0}
.slide-body code{display:block;white-space:pre-wrap}
.slide-foot{
  padding:12px 22px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:8px;
  background:rgba(255,255,255,.02);
}
.c-key{color:#22D3EE}
.c-str{color:#a5f3a4}
.c-num{color:#fcd34d}
.c-attr{color:#c4b5fd}
.c-com{color:#5F667E;font-style:italic}
.panel-foot{
  padding:14px 22px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:9px;
  background:rgba(255,255,255,.02);
}
.meter{display:flex;align-items:center;gap:12px;font-size:11.5px;color:var(--text-3)}
.m-label{width:30px}
.m-val{width:78px;text-align:right;color:var(--text-2);font-family:"Space Grotesk",sans-serif}
.bar{flex:1;height:4px;background:rgba(255,255,255,.05);border-radius:99px;overflow:hidden;position:relative}
.bar i{
  display:block;height:100%;
  background:var(--grad);border-radius:99px;
  position:relative;
  animation:barShine 3s ease-in-out infinite alternate;
}
@keyframes barShine{
  from{filter:hue-rotate(0) brightness(1)}
  to{filter:hue-rotate(20deg) brightness(1.15)}
}

/* === 浮动 Chip === */
.chip{
  position:absolute;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:99px;
  background:rgba(15,17,40,.85);
  border:1px solid var(--line-2);
  backdrop-filter:blur(12px);
  font-size:12px;color:var(--text);
  white-space:nowrap;
  box-shadow:0 12px 30px -10px rgba(0,0,0,.6);
  animation:floaty 6s ease-in-out infinite;
}
.chip-dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-1);
  box-shadow:0 0 8px var(--brand-1);
}
.chip-dot.c2{background:var(--brand-2);box-shadow:0 0 8px var(--brand-2)}
.chip-1{
  top:-20px;right:24px;
}
.chip-2{
  bottom:54px;left:-30px;
  animation-delay:-2s;
  background:linear-gradient(135deg,rgba(124,92,255,.25),rgba(34,211,238,.15));
  border-color:rgba(124,92,255,.35);
}
.chip-3{
  top:46%;right:-28px;
  animation-delay:-4s;
}
@keyframes floaty{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-10px)}
}

/* === 指标条 === */
.hero-meta{
  margin-top:60px;
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:20px;
  padding:28px 36px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:linear-gradient(180deg, rgba(255,255,255,.025), rgba(255,255,255,0));
  backdrop-filter:blur(10px);
}
.meta-item{
  text-align:center;
  display:flex;flex-direction:column;gap:3px;
}
.meta-item b{
  font-family:"Space Grotesk",sans-serif;
  font-size:30px;font-weight:600;
  letter-spacing:-.02em;color:#fff;
}
.meta-item b i{
  font-style:normal;color:var(--brand-2);font-size:22px;margin-left:1px;
}
.meta-item span{
  font-size:12px;color:var(--text-3);
  letter-spacing:.05em;
}

/* ========== SECTION 通用 ========== */
.section{
  padding:90px 0;
  position:relative;
}
.section-head{
  text-align:center;
  max-width:680px;
  margin:0 auto 56px;
}
.eyebrow{
  display:inline-block;
  font-size:12px;letter-spacing:.25em;
  color:var(--brand-2);
  margin-bottom:18px;
  font-weight:600;
}
.section-title{
  font-size:clamp(28px,3.6vw,42px);
  font-weight:700;line-height:1.22;letter-spacing:-.015em;
  margin-bottom:14px;
}
.section-sub{
  color:var(--text-2);
  font-size:15.5px;
  max-width:560px;
  margin:0 auto;
}

/* ========== SERVICES — 网格分隔 + 跟随光晕 ========== */
.services-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.svc-card{
  position:relative;
  padding:36px 32px;
  background:var(--bg);
  transition:background .3s;
  overflow:hidden;
}
.svc-card::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(380px circle at var(--mx,50%) var(--my,0%), rgba(124,92,255,.18), transparent 55%);
  opacity:0;transition:opacity .35s;pointer-events:none;
}
.svc-card:hover::before{opacity:1}
.svc-card:hover{background:linear-gradient(180deg, rgba(255,255,255,.025), rgba(255,255,255,0))}

.svc-icon{
  position:relative;
  width:42px;height:42px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(124,92,255,.1);
  color:var(--brand-2);
  margin-bottom:20px;
  border:1px solid rgba(124,92,255,.18);
}
.svc-icon svg{width:21px;height:21px}
.svc-tag{
  position:relative;
  display:inline-block;
  font-size:11.5px;
  color:var(--brand-2);
  letter-spacing:.04em;
  margin-bottom:10px;
  padding:3px 0;
}
.svc-tag::before{
  content:"";display:inline-block;
  width:14px;height:1px;background:var(--brand-2);
  vertical-align:middle;margin-right:8px;opacity:.6;
}
.svc-card h3{
  position:relative;
  font-size:18px;font-weight:700;
  margin-bottom:10px;letter-spacing:-.005em;
}
.svc-card p{
  position:relative;
  color:var(--text-2);
  font-size:13.8px;line-height:1.75;
}

/* ========== SOLUTIONS ========== */
.sol-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
}
.sol-card{
  position:relative;
  padding:24px 24px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.025);
  border:1px solid var(--line);
  transition:all .25s;
  overflow:hidden;
}
.sol-card::after{
  content:"";position:absolute;left:0;top:0;width:2px;height:100%;
  background:var(--grad);transform:scaleY(0);transform-origin:top;
  transition:transform .35s;
}
.sol-card:hover{
  border-color:var(--line-2);
  background:rgba(255,255,255,.04);
  transform:translateY(-2px);
}
.sol-card:hover::after{transform:scaleY(1)}
.sol-card h4{
  font-size:16.5px;font-weight:600;
  margin-bottom:6px;
}
.sol-card p{
  color:var(--text-2);
  font-size:13px;line-height:1.7;
}

/* ========== WHY US ========== */
.why-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:36px 28px;
  max-width:1080px;margin:0 auto;
}
.why-item{
  position:relative;
  padding-top:22px;
  border-top:1px solid var(--line-2);
}
.why-num{
  font-family:"Space Grotesk",sans-serif;
  font-size:13px;font-weight:600;
  color:var(--brand-2);
  letter-spacing:.1em;
  margin-bottom:12px;
}
.why-item h4{
  font-size:17px;font-weight:600;
  margin-bottom:8px;
}
.why-item p{
  color:var(--text-2);
  font-size:13.5px;line-height:1.7;
}

/* ========== CASES ========== */
.cases-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.case-card{
  padding:30px 28px;
  border-radius:var(--radius-lg);
  background:linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,0));
  border:1px solid var(--line);
  transition:all .25s;
}
.case-card:hover{
  border-color:var(--line-2);
  transform:translateY(-3px);
  background:linear-gradient(180deg, rgba(124,92,255,.05), rgba(255,255,255,0));
}
.case-cat{
  display:inline-block;
  font-size:11px;letter-spacing:.15em;
  padding:4px 10px;border-radius:6px;
  background:rgba(34,211,238,.1);color:var(--brand-2);
  border:1px solid rgba(34,211,238,.2);
  margin-bottom:16px;
}
.case-card h4{
  font-size:18px;font-weight:700;
  margin-bottom:10px;letter-spacing:-.005em;
}
.case-card p{
  color:var(--text-2);
  font-size:13.5px;line-height:1.7;
}

/* ========== ABOUT ========== */
.about-wrap{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:60px;align-items:center;
}
.about-p{
  color:var(--text-2);
  font-size:15px;line-height:1.85;
  margin-bottom:16px;
  max-width:520px;
}
.about-stats{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.about-stats > div{
  padding:30px 24px;
  background:var(--bg);
  display:flex;flex-direction:column;gap:5px;
}
.about-stats b{
  font-family:"Space Grotesk",sans-serif;
  font-size:32px;font-weight:600;
  letter-spacing:-.02em;
  background:var(--grad);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.about-stats b i{font-style:normal;font-size:22px}
.about-stats span{
  font-size:13px;color:var(--text-2);
}

/* ========== CTA ========== */
.cta{padding:40px 0 80px}
.cta-inner{
  position:relative;
  padding:64px 40px;
  text-align:center;
  border-radius:28px;
  background:
    radial-gradient(circle at 20% 20%, rgba(124,92,255,.18), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(34,211,238,.14), transparent 50%),
    rgba(255,255,255,.02);
  border:1px solid var(--line-2);
  overflow:hidden;
}
.cta h2{
  font-size:clamp(26px,3.2vw,38px);
  font-weight:700;
  margin-bottom:12px;letter-spacing:-.01em;
}
.cta p{
  color:var(--text-2);
  font-size:15.5px;
  margin-bottom:30px;
}
.cta-actions{
  display:flex;gap:14px;
  justify-content:center;flex-wrap:wrap;
}

/* ========== FOOTER ========== */
.footer{
  border-top:1px solid var(--line);
  padding-top:60px;
}
.footer-inner{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:50px;
  padding-bottom:48px;
  border-bottom:1px solid var(--line);
}
.foot-brand .logo{margin-bottom:14px}
.foot-desc{
  font-size:20px;font-weight:700;
  letter-spacing:.01em;
  color:#fff;
  max-width:340px;
  line-height:1.45;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.foot-desc-sub{
  display:block;
  margin-top:10px;
  font-family:"Space Grotesk",sans-serif;
  font-size:11px;font-weight:500;
  letter-spacing:.25em;
  color:var(--text-3);
  -webkit-text-fill-color:var(--text-3);
}
.foot-col h5{
  font-size:13px;font-weight:600;
  color:#fff;
  margin-bottom:16px;letter-spacing:.04em;
}
.foot-col a{
  display:block;
  color:var(--text-2);
  font-size:13px;
  margin-bottom:10px;
  transition:color .2s;
}
.foot-col a:hover{color:#fff}
.foot-bottom{
  padding:22px 32px;
  display:flex;justify-content:space-between;
  font-size:12.5px;color:var(--text-3);
  flex-wrap:wrap;gap:10px;
}

/* ========== SCROLL REVEAL ========== */
.reveal{opacity:0;transform:translateY(24px);transition:all .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ========== RESPONSIVE ========== */
@media (max-width: 1080px){
  .hero{padding:120px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:60px}
  .hero-text{max-width:none}
  .hero-visual{max-width:560px;margin:0 auto;width:100%}
  .services-grid,.cases-grid,.sol-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr);gap:32px 28px}
  .about-wrap{grid-template-columns:1fr;gap:40px}
  .footer-inner{grid-template-columns:1fr 1fr;gap:36px}
  .nav-links{display:none}
  .nav-burger{display:flex}
}
@media (max-width: 600px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .hero{padding:110px 0 60px}
  .hero-visual{height:auto;min-height:440px}
  .chip{display:none}
  .services-grid,.cases-grid,.sol-grid,.why-grid,.about-stats{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;text-align:center;padding:22px 20px}
  .cta-inner{padding:48px 24px}
  .hero-meta{margin-top:40px;grid-template-columns:repeat(2,1fr);gap:24px;padding:24px 20px}
  .hero-actions{flex-direction:column;width:100%;max-width:280px}
  .hero-actions .btn{justify-content:center}
}