/* ===== glowai.com.cn 全站样式 2026 改版 ===== */
:root{
  --primary:#6366f1;
  --primary-dark:#4f46e5;
  --primary-light:#818cf8;
  --secondary:#a855f7;
  --pink:#ec4899;
  --grad:linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#ec4899 100%);
  --grad-soft:linear-gradient(135deg,rgba(99,102,241,.12),rgba(236,72,153,.12));
  --bg:#f8f9ff;
  --bg-card:#ffffff;
  --bg-dark:#f3f4f6;
  --text:#1f2937;
  --text-2:#6b7280;
  --text-3:#9ca3af;
  --border:#e5e7eb;
  --shadow-sm:0 1px 3px rgba(31,41,55,.08);
  --shadow-md:0 8px 24px rgba(99,102,241,.12);
  --shadow-lg:0 16px 48px rgba(99,102,241,.18);
  --r-sm:10px;--r-md:16px;--r-lg:20px;--r-xl:28px;
  --maxw:1120px;
  --safe-top:env(safe-area-inset-top,0px);
  --safe-bottom:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:12px 20px;z-index:10001;font-weight:600;border-radius:0 0 10px 0}
.skip-link:focus{left:0}

/* ===== Header ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;
  padding-top:var(--safe-top);
  background:rgba(255,255,255,.88);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(99,102,241,.14)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:21px;color:var(--text);letter-spacing:.5px}
.brand img{width:38px;height:38px;border-radius:11px;object-fit:cover;box-shadow:0 4px 14px rgba(139,92,246,.35)}
.brand .grad{letter-spacing:1px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{padding:9px 15px;border-radius:999px;font-size:14.5px;font-weight:500;color:var(--text-2);transition:.2s}
.nav-links a:hover{color:var(--primary);background:rgba(99,102,241,.08)}
.nav-links a.active{color:var(--primary-dark);background:rgba(99,102,241,.12);font-weight:600}
.nav-cta{margin-left:8px;padding:9px 20px !important;background:var(--grad);color:#fff !important;font-weight:700 !important;
  box-shadow:0 6px 18px rgba(99,102,241,.35)}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(99,102,241,.45)}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;font-size:22px;color:var(--text);border-radius:10px}
.nav-toggle:active{background:var(--bg-dark)}
.mobile-menu{display:none}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:999px;font-weight:700;font-size:15px;
  transition:transform .2s,box-shadow .2s;line-height:1.2}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(99,102,241,.4)}
.btn-primary:hover{box-shadow:0 14px 32px rgba(99,102,241,.5)}
.btn-ghost{background:#fff;color:var(--primary-dark);border:1.5px solid rgba(99,102,241,.35)}
.btn-white{background:#fff;color:var(--primary-dark);box-shadow:0 10px 26px rgba(0,0,0,.18)}
.btn-outline-w{background:rgba(255,255,255,.14);color:#fff;border:1.5px solid rgba(255,255,255,.55)}

/* ===== Hero ===== */
.hero{position:relative;padding:calc(126px + var(--safe-top)) 0 64px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(560px 420px at 8% 0%,rgba(99,102,241,.16),transparent 62%),
    radial-gradient(620px 460px at 96% 18%,rgba(236,72,153,.14),transparent 62%),
    radial-gradient(520px 420px at 55% 108%,rgba(168,85,247,.12),transparent 60%),
    linear-gradient(180deg,#f2f0ff 0%,#faf6ff 55%,#fdf2f8 100%)}
.hero-bg::after{content:"";position:absolute;inset:0;opacity:.5;
  background-image:radial-gradient(rgba(99,102,241,.14) 1px,transparent 1px);
  background-size:30px 30px;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 72%);mask-image:linear-gradient(180deg,#000,transparent 72%)}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.75);border:1px solid rgba(99,102,241,.25);
  font-size:13px;font-weight:600;color:var(--primary-dark);margin-bottom:20px}
.hero h1{font-size:clamp(30px,4.6vw,50px);line-height:1.22;font-weight:800;margin-bottom:18px}
.lead{font-size:clamp(15px,1.7vw,17.5px);color:var(--text-2);max-width:540px;margin-bottom:26px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;list-style:none}
.hero-tags li{padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.8);
  border:1px solid var(--border);font-size:13px;font-weight:500;color:var(--text-2)}
.hero-visual{position:relative;display:flex;justify-content:center}
.hero-visual .hero-img{width:100%;max-width:460px;border-radius:var(--r-xl);
  box-shadow:var(--shadow-lg);animation:float 6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.float-chip{position:absolute;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);
  border:1px solid var(--border);border-radius:14px;padding:10px 16px;font-size:13px;font-weight:700;
  color:var(--text);box-shadow:var(--shadow-md);animation:float 5s ease-in-out infinite}
.float-chip small{display:block;font-size:11px;font-weight:500;color:var(--text-3)}
.chip-1{top:6%;left:2%;animation-delay:.8s}
.chip-2{bottom:10%;right:0;animation-delay:1.6s}

/* ===== Sections ===== */
.section{padding:74px 0}
.section.alt{background:linear-gradient(180deg,#fff 0%,#f6f4ff 100%)}
.section-head{text-align:center;max-width:640px;margin:0 auto 46px}
.kicker{display:inline-block;font-size:13px;letter-spacing:2px;font-weight:700;
  color:var(--primary);background:rgba(99,102,241,.1);padding:5px 14px;border-radius:999px;margin-bottom:14px}
.section-head h2{font-size:clamp(25px,3.6vw,36px);font-weight:800;margin-bottom:12px}
.section-head p{color:var(--text-2)}
.grid{display:grid;gap:20px}

/* feature cards */
.features-grid{grid-template-columns:repeat(4,1fr)}
.fcard{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-lg);padding:26px 22px;
  transition:transform .25s,box-shadow .25s,border-color .25s}
.fcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:rgba(99,102,241,.4)}
.fcard-icon{width:52px;height:52px;border-radius:14px;background:var(--grad-soft);
  display:grid;place-items:center;font-size:26px;margin-bottom:15px}
.fcard h3{font-size:16.5px;font-weight:700;margin-bottom:8px}
.fcard p{font-size:14px;color:var(--text-2)}

/* screenshots */
.shots-grid{grid-template-columns:repeat(3,1fr)}
.shot{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;
  transition:transform .25s,box-shadow .25s}
.shot:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.shot img{width:100%;aspect-ratio:750/592;object-fit:cover}
.shot figcaption{padding:13px 16px;font-size:14px;font-weight:600;color:var(--text-2);text-align:center}

/* download card */
.dl-wrap{max-width:760px;margin:0 auto}
.dl-card{display:flex;align-items:center;gap:34px;background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--r-xl);padding:36px;box-shadow:var(--shadow-md)}
.dl-qr{flex-shrink:0;width:168px;height:168px;padding:12px;background:#fff;border-radius:var(--r-md);
  border:1px solid var(--border);box-shadow:var(--shadow-sm)}
.dl-qr img{width:100%;height:100%;object-fit:contain;border-radius:8px}
.dl-info h3{font-size:21px;font-weight:800;margin-bottom:4px}
.dl-info .ver{display:inline-block;font-size:13px;font-weight:600;color:var(--primary-dark);
  background:rgba(99,102,241,.1);padding:3px 12px;border-radius:999px;margin-bottom:12px}
.dl-info p{font-size:14px;color:var(--text-2);margin-bottom:16px}
.dl-code{font-size:13px;color:var(--text-2)}
.dl-code strong{color:var(--pink);font-size:16px;letter-spacing:1px}
.dl-btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}

/* roles */
.roles-grid{grid-template-columns:repeat(4,1fr)}
.rcard{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;
  transition:transform .25s,box-shadow .25s}
.rcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.rcard-head{height:110px;display:grid;place-items:center;font-size:44px;
  background:linear-gradient(135deg,rgba(99,102,241,.14),rgba(236,72,153,.14))}
.rcard-body{padding:16px 18px 18px}
.rcard-body h3{font-size:16px;font-weight:700;margin-bottom:3px}
.rcard-body p{font-size:13.5px;color:var(--text-2);margin-bottom:10px}
.rtag{display:inline-block;font-size:12px;font-weight:600;color:var(--pink);
  background:rgba(236,72,153,.1);padding:2px 10px;border-radius:999px}

/* stats */
.stats-grid{grid-template-columns:repeat(3,1fr);max-width:820px;margin:0 auto}
.stat{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:30px 20px;text-align:center;transition:transform .25s,box-shadow .25s}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.stat .num{font-size:34px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .label{font-size:14px;color:var(--text-2);margin-top:6px}

/* comparison table */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--r-lg);background:#fff;box-shadow:var(--shadow-sm)}
.cmp{width:100%;border-collapse:collapse;min-width:600px}
.cmp th,.cmp td{padding:14px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--border)}
.cmp thead th{background:var(--grad-soft);font-weight:700;color:var(--primary-dark)}
.cmp tbody th{font-weight:600;color:var(--text)}
.cmp td.best{color:var(--primary-dark);font-weight:700;background:rgba(99,102,241,.05)}
.cmp td.no{color:var(--text-3)}
.cmp tr:last-child td,.cmp tr:last-child th{border-bottom:none}

/* FAQ accordion */
.faq-list{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;transition:border-color .25s}
.faq-item.active{border-color:rgba(99,102,241,.45)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:14px;
  padding:17px 20px;font-size:15.5px;font-weight:600;color:var(--text);text-align:left}
.faq-q svg{flex-shrink:0;width:20px;height:20px;color:var(--primary);transition:transform .3s}
.faq-item.active .faq-q svg{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 20px 18px;font-size:14.5px;color:var(--text-2)}

/* article / guide page */
.article{max-width:820px;margin:0 auto}
.article-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:32px;margin-bottom:22px}
.article-card h2{font-size:22px;font-weight:800;margin-bottom:14px;padding-bottom:12px;border-bottom:2px solid var(--grad-soft)}
.article-card h3{font-size:17px;font-weight:700;margin:18px 0 8px}
.article-card p{color:var(--text-2);font-size:15px;margin-bottom:10px}
.article-card ol,.article-card ul{padding-left:22px;color:var(--text-2);font-size:15px;margin-bottom:12px}
.article-card li{margin-bottom:8px}
.article-card li strong{color:var(--text)}
.tip-box{background:var(--grad-soft);border-left:4px solid var(--primary);border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:14px 18px;font-size:14px;color:var(--text);margin:14px 0}

/* steps */
.steps-grid{grid-template-columns:repeat(3,1fr)}
.step-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:26px;position:relative}
.step-num{width:44px;height:44px;border-radius:13px;background:var(--grad);color:#fff;font-weight:800;
  display:grid;place-items:center;font-size:17px;margin-bottom:14px}
.step-card h3{font-size:16.5px;font-weight:700;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--text-2)}

/* CTA band */
.cta-band{background:var(--grad);border-radius:var(--r-xl);padding:52px 30px;text-align:center;
  color:#fff;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;top:-60px;right:-60px;width:220px;height:220px;border-radius:50%;
  background:rgba(255,255,255,.12)}
.cta-band::after{content:"";position:absolute;bottom:-70px;left:-40px;width:240px;height:240px;border-radius:50%;
  background:rgba(255,255,255,.1)}
.cta-band h2{font-size:clamp(23px,3.4vw,32px);font-weight:800;margin-bottom:10px;position:relative;z-index:1}
.cta-band p{opacity:.92;margin-bottom:24px;position:relative;z-index:1}
.cta-band .dl-btns{justify-content:center;position:relative;z-index:1}
.cta-hint{margin-top:16px;font-size:13px;opacity:.85;position:relative;z-index:1}

/* breadcrumb */
.crumb{padding:104px 0 0;background:linear-gradient(180deg,#f2f0ff,#fafafa)}
.crumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;font-size:13.5px;color:var(--text-3)}
.crumb li+li::before{content:"/";margin-right:6px;color:var(--border)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}

/* page hero (sub pages) */
.page-hero{padding:36px 0 44px;text-align:center;background:transparent}
.page-hero h1{font-size:clamp(26px,4vw,40px);font-weight:800;margin-bottom:12px}
.page-hero p{color:var(--text-2);max-width:600px;margin:0 auto}

/* ===== Footer ===== */
.site-footer{background:#171332;color:#c9c4e8;padding:52px 0 30px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:36px;margin-bottom:34px}
.footer-brand img{width:44px;height:44px;border-radius:12px;margin-bottom:12px}
.footer-brand p{font-size:13.5px;opacity:.85;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.footer-col a{display:block;font-size:13.5px;color:#c9c4e8;opacity:.85;padding:4px 0;transition:.2s}
.footer-col a:hover{opacity:1;color:#fff}
.footer-copy{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;text-align:center;font-size:13px;opacity:.65}

/* back to top + floating */
.back-top{position:fixed;right:22px;bottom:calc(86px + var(--safe-bottom));width:46px;height:46px;border-radius:50%;
  background:#fff;color:var(--primary);border:1px solid var(--border);box-shadow:var(--shadow-md);
  display:grid;place-items:center;z-index:900;opacity:0;visibility:hidden;transform:translateY(12px);transition:.3s}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.floating-dl{position:fixed;left:0;right:0;bottom:0;z-index:950;
  padding:10px 16px calc(10px + var(--safe-bottom));
  background:rgba(255,255,255,.94);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-top:1px solid var(--border);display:flex;gap:12px;justify-content:center;
  transform:translateY(0);transition:transform .3s ease}
.floating-dl .btn{flex:1;max-width:220px;padding:11px 18px;font-size:14px}

/* scroll reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .65s ease,transform .65s ease}
.reveal.visible{opacity:1;transform:none}

/* ===== Responsive ===== */
@media (max-width:1020px){
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .roles-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:880px){
  .nav-links{position:fixed;top:calc(66px + var(--safe-top));left:0;right:0;z-index:999;
    flex-direction:column;align-items:stretch;gap:0;padding:10px 18px 18px;
    background:rgba(255,255,255,.98);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--border);box-shadow:var(--shadow-md);
    display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 12px;border-radius:10px;font-size:15px;border-bottom:1px solid var(--bg-dark)}
  .nav-links a:last-child{border-bottom:none}
  .nav-cta{margin:8px 0 0;text-align:center}
  .nav-toggle{display:flex}
  .hero{padding:calc(108px + var(--safe-top)) 0 48px}
  .hero-inner{grid-template-columns:1fr;gap:36px;text-align:center}
  .lead{margin-left:auto;margin-right:auto}
  .hero-cta,.hero-tags{justify-content:center}
  .hero-visual{order:-1}
  .hero-visual .hero-img{max-width:340px}
  .shots-grid{grid-template-columns:1fr;max-width:480px;margin:0 auto}
  .dl-card{flex-direction:column;text-align:center;gap:22px}
  .dl-btns{justify-content:center}
  .steps-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .crumb{padding-top:calc(96px + var(--safe-top))}
}
@media (max-width:560px){
  .container{padding:0 18px}
  .features-grid,.roles-grid,.stats-grid,.footer-grid{grid-template-columns:1fr}
  .footer-grid{gap:26px}
  .stats-grid{max-width:340px}
  .btn{padding:12px 22px;font-size:14px}
  .dl-card{padding:26px 20px}
  .dl-qr{width:150px;height:150px}
  .article-card{padding:24px 20px}
  .float-chip{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}