/* ============================================================
   光年工作室 · 通用站点样式表
   想改颜色，只改下面 :root 里的变量就行
   ============================================================ */
:root{
  --bg:#06070d;
  --bg-2:#0b0d18;
  --card:rgba(255,255,255,.045);
  --card-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.18);
  --txt:#e8ecf7;
  --muted:#98a2b8;
  --brand:#6d5efc;
  --brand-2:#22d3ee;
  --accent:#ff7a45;
  --ok:#34d399;
  --radius:20px;
  --radius-sm:12px;
  --max:1160px;
  --shadow:0 24px 60px rgba(0,0,0,.45);
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--txt);
  font-family:var(--font);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-.02em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}

/* ---------- 背景光晕 ---------- */
.aurora{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.aurora i{position:absolute;display:block;border-radius:50%;filter:blur(110px);opacity:.42}
.aurora i:nth-child(1){width:620px;height:620px;background:#5b4bff;top:-240px;left:-160px}
.aurora i:nth-child(2){width:520px;height:520px;background:#12b8d6;top:180px;right:-200px;opacity:.3}
.aurora i:nth-child(3){width:560px;height:560px;background:#ff6a3d;bottom:-280px;left:28%;opacity:.18}
.grid-bg{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 40%,transparent 100%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 40%,transparent 100%);
}

/* ---------- 布局 ---------- */
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
section{padding:96px 0;position:relative}
.sec-head{max-width:720px;margin-bottom:52px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brand-2);margin-bottom:16px}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
h2.title{font-size:clamp(28px,4.2vw,44px)}
.lead{color:var(--muted);font-size:clamp(15px,1.6vw,18px);margin-top:16px}
.grad{background:linear-gradient(100deg,#a99bff 0%,#22d3ee 55%,#7ef0c0 100%);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- 导航 ---------- */
header{position:sticky;top:0;z-index:60;transition:background .3s,border-color .3s,backdrop-filter .3s;
  border-bottom:1px solid transparent}
header.scrolled{background:rgba(6,7,13,.78);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo{display:flex;align-items:center;gap:11px;font-weight:900;font-size:18px;letter-spacing:-.01em}
.logo .mark{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;font-size:16px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));box-shadow:0 8px 24px rgba(109,94,252,.45)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:9px 14px;border-radius:10px;font-size:15px;color:var(--muted);transition:.2s}
.nav-links a:hover{color:var(--txt);background:var(--card)}
.nav-links a.on{color:var(--txt);background:var(--card-2)}
.nav-cta{display:flex;align-items:center;gap:12px}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--card);
  color:var(--txt);cursor:pointer;font-size:18px;line-height:1}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;height:48px;padding:0 24px;border-radius:14px;
  font-weight:700;font-size:15px;cursor:pointer;border:1px solid transparent;transition:transform .18s,box-shadow .25s,background .25s,border-color .25s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(135deg,var(--brand),#8b7cff 45%,var(--brand-2));color:#fff;
  box-shadow:0 14px 34px rgba(109,94,252,.42)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px rgba(109,94,252,.55)}
.btn-ghost{background:var(--card);border-color:var(--line);color:var(--txt)}
.btn-ghost:hover{border-color:var(--line-2);background:var(--card-2);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:12px}

/* ---------- Hero ---------- */
.hero{padding:88px 0 72px;text-align:center}
.badge{display:inline-flex;align-items:center;gap:9px;padding:7px 15px 7px 9px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);font-size:13.5px;color:var(--muted);margin-bottom:26px}
.badge b{color:var(--txt)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(52,211,153,.16);animation:pulse 2s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 9px rgba(52,211,153,0)}}
.hero h1{font-size:clamp(34px,6.4vw,68px);letter-spacing:-.035em}
.hero .lead{max-width:660px;margin:22px auto 0}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:36px}
.trust{margin-top:22px;font-size:13.5px;color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:64px;
  border:1px solid var(--line);border-radius:var(--radius);background:var(--card);padding:28px 22px;
  backdrop-filter:blur(10px)}
.stat b{display:block;font-size:clamp(24px,3vw,34px);font-weight:900;letter-spacing:-.03em}
.stat span{font-size:13.5px;color:var(--muted)}

/* ---------- 卡片 / 网格 ---------- */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);padding:28px;
  transition:transform .25s,border-color .25s,background .25s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);background:var(--card-2)}
.card .ico{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;font-size:22px;margin-bottom:18px;
  background:linear-gradient(135deg,rgba(109,94,252,.28),rgba(34,211,238,.22));border:1px solid var(--line)}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{font-size:12.5px;padding:5px 11px;border-radius:999px;border:1px solid var(--line);color:var(--muted);background:rgba(255,255,255,.03)}

/* ---------- 作品卡 ---------- */
.work{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--card);
  transition:transform .25s,border-color .25s}
.work:hover{transform:translateY(-4px);border-color:var(--line-2)}
.thumb{height:170px;position:relative;display:grid;place-items:center;font-size:40px;
  background:linear-gradient(135deg,#231f4d,#0e2a3a 60%,#123) ;border-bottom:1px solid var(--line)}
.thumb.t2{background:linear-gradient(135deg,#3a1f3d,#4a2410 70%,#1a1130)}
.thumb.t3{background:linear-gradient(135deg,#10333a,#1b2350 70%,#2a1740)}
.thumb::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:26px 26px;opacity:.6}
.work .body{padding:22px}
.work h3{font-size:18px}
.work p{color:var(--muted);font-size:14.5px;margin-top:8px}

/* ---------- 流程 ---------- */
.steps{counter-reset:s}
.step{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);padding:26px;position:relative}
.step::before{counter-increment:s;content:"0" counter(s);font-size:13px;font-weight:900;letter-spacing:.1em;
  color:var(--brand-2);display:block;margin-bottom:14px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14.5px}

/* ---------- 产品页 ---------- */
.mock{border:1px solid var(--line);border-radius:16px;background:linear-gradient(180deg,#0e1120,#0a0c16);
  box-shadow:var(--shadow);overflow:hidden;text-align:left}
.mock-bar{display:flex;align-items:center;gap:7px;padding:12px 14px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.03)}
.mock-bar i{width:11px;height:11px;border-radius:50%;background:#ff5f57;display:block}
.mock-bar i:nth-child(2){background:#febc2e}
.mock-bar i:nth-child(3){background:#28c840}
.mock-bar span{margin-left:10px;font-size:12.5px;color:var(--muted)}
.mock-body{padding:22px;display:grid;gap:16px}
.mock-row{display:flex;gap:12px;align-items:center}
.skel{height:12px;border-radius:6px;background:linear-gradient(90deg,rgba(255,255,255,.10),rgba(255,255,255,.04));}
.skel.w40{width:40%}.skel.w60{width:60%}.skel.w80{width:80%}
.mock-panel{height:112px;border-radius:12px;border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(109,94,252,.28),rgba(34,211,238,.16));display:grid;place-items:center;color:var(--muted);font-size:13px}

.price{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);padding:30px;display:flex;flex-direction:column}
.price.hot{border-color:rgba(109,94,252,.6);background:linear-gradient(180deg,rgba(109,94,252,.14),var(--card));
  box-shadow:0 26px 60px rgba(109,94,252,.22);position:relative}
.price.hot::before{content:"最受欢迎";position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  font-size:12.5px;font-weight:800;padding:4px 14px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff}
.price h3{font-size:17px;color:var(--muted);font-weight:700}
.amount{font-size:42px;font-weight:900;letter-spacing:-.03em;margin:14px 0 4px}
.amount small{font-size:15px;font-weight:600;color:var(--muted)}
.price ul{margin:22px 0;display:grid;gap:11px;font-size:14.5px;color:var(--muted);flex:1}
.price li{display:flex;gap:10px;align-items:flex-start}
.price li::before{content:"✓";color:var(--ok);font-weight:900;flex:none}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px}
.qa{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--card);overflow:hidden}
.qa button{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 20px;
  background:none;border:0;color:var(--txt);font-size:16px;font-weight:700;text-align:left;cursor:pointer}
.qa .ans{max-height:0;overflow:hidden;transition:max-height .32s ease;color:var(--muted);font-size:15px}
.qa .ans p{padding:0 20px 20px}
.qa.open{border-color:var(--line-2)}
.qa.open .ans{max-height:340px}
.qa .chev{transition:transform .3s;flex:none;color:var(--muted)}
.qa.open .chev{transform:rotate(45deg)}

/* ---------- 公司背书 ---------- */
.logos{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.logo-cell{border:1px solid var(--line);border-radius:14px;background:var(--card);height:76px;display:grid;place-items:center;
  color:var(--muted);font-weight:800;font-size:15px;letter-spacing:.02em;transition:.25s}
.logo-cell:hover{color:var(--txt);border-color:var(--line-2);background:var(--card-2)}
.timeline{border-left:2px solid var(--line);padding-left:28px;display:grid;gap:30px}
.tl-item{position:relative}
.tl-item::before{content:"";position:absolute;left:-37px;top:8px;width:12px;height:12px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));box-shadow:0 0 0 4px rgba(109,94,252,.18)}
.tl-item b{color:var(--brand-2);font-size:13.5px;letter-spacing:.08em}
.tl-item h3{font-size:17px;margin:6px 0 6px}
.tl-item p{color:var(--muted);font-size:14.5px}

/* ---------- 联系 / CTA ---------- */
.cta-box{border:1px solid var(--line-2);border-radius:26px;padding:56px 40px;text-align:center;
  background:radial-gradient(120% 140% at 50% 0%,rgba(109,94,252,.26),rgba(10,12,22,.6) 60%);
  box-shadow:var(--shadow)}
.cta-box h2{font-size:clamp(26px,3.6vw,40px)}
.cta-box p{color:var(--muted);max-width:560px;margin:16px auto 30px}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.contact-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);padding:24px;text-align:center}
.contact-card span{font-size:13px;color:var(--muted);display:block;margin-bottom:6px}
.contact-card b{font-size:16px;word-break:break-all}

/* ---------- 页脚 ---------- */
footer{border-top:1px solid var(--line);padding:44px 0 34px;margin-top:40px}
.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;color:var(--muted);font-size:14px}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}
.foot-links a:hover{color:var(--txt)}
.tip{margin-top:18px;font-size:12.5px;color:rgba(255,255,255,.3)}

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

/* ---------- 响应式 ---------- */
@media (max-width:980px){
  .g4,.logos{grid-template-columns:repeat(2,1fr)}
  .g3,.contact-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);gap:24px}
}
@media (max-width:720px){
  section{padding:66px 0}
  .nav-links{position:fixed;inset:72px 16px auto 16px;flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(10,12,22,.96);border:1px solid var(--line);border-radius:16px;padding:12px;
    backdrop-filter:blur(18px);display:none;box-shadow:var(--shadow)}
  .nav-links.show{display:flex}
  .burger{display:block}
  .nav-cta .btn{display:none}
  .g2,.g3,.g4,.logos,.contact-grid{grid-template-columns:1fr}
  .hero{padding:56px 0 44px}
  .cta-box{padding:40px 22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}