:root{
  --bg: #f6f8fc;
  --bg2:#eef3ff;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --border: rgba(2,6,23,.10);
  --shadow: 0 12px 34px rgba(2,6,23,.08);
  --shadow2: 0 22px 60px rgba(2,6,23,.12);
  --primary:#1677ff;
  --primary2:#4096ff;
  --primaryText:#ffffff;
  --chip: rgba(22,119,255,.12);
  --chipText:#0b3a8a;
  --dashboardBg:#0b1220;
  --dashboardText:#e5f7ff;
  --dashboardAccent:#00eaff;
}

html[data-theme="dark"]{
  --bg:#070b12;
  --bg2:#0b1220;
  --card: rgba(255,255,255,.06);
  --text:#e8eefc;
  --muted:rgba(232,238,252,.72);
  --border: rgba(255,255,255,.10);
  --shadow: 0 18px 54px rgba(0,0,0,.35);
  --shadow2: 0 30px 90px rgba(0,0,0,.45);
  --primary:#5aa0ff;
  --primary2:#9ac2ff;
  --primaryText:#08101f;
  --chip: rgba(154,194,255,.16);
  --chipText:#dbeafe;
  --dashboardBg:#0b1220;
  --dashboardText:#e5f7ff;
  --dashboardAccent:#00eaff;
}

*{ box-sizing:border-box; }
body{
  margin:0;
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  background: radial-gradient(1200px 600px at 20% -10%, var(--bg2), transparent 55%), var(--bg);
  color:var(--text);
}

a{ color:inherit; text-decoration:none; }
.container{ max-width:1200px; margin:0 auto; padding:0 18px; }

/* topbar */
.topbar{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(10px);
  background: color-mix(in oklab, var(--bg) 75%, transparent);
  border-bottom:1px solid var(--border);
}
.topbar__inner{
  height:72px; display:flex; align-items:center; justify-content:space-between;
}
.brand{ display:flex; gap:12px; align-items:center; }
.brand__logo{
  width:42px; height:42px; border-radius:14px;
  display:grid; place-items:center;
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  color:var(--primaryText);
  font-weight:800;
  letter-spacing:.5px;
  box-shadow: var(--shadow);
}
.brand__title{ font-weight:900; font-size:16px; line-height:1.1; }
.brand__sub{ font-size:12px; color:var(--muted); margin-top:4px; }

.nav{ display:flex; align-items:center; gap:14px; }
.nav a{ font-size:14px; color:var(--muted); padding:10px 10px; border-radius:12px; }
.nav a:hover{ background: rgba(22,119,255,.10); color:var(--text); }

/* buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:12px 16px;
  border-radius:14px;
  border:1px solid color-mix(in oklab, var(--primary) 45%, transparent);
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  color:var(--primaryText);
  font-weight:800;
  box-shadow: var(--shadow);
}
.btn:hover{ transform: translateY(-1px); box-shadow: var(--shadow2); }
.btn:active{ transform: translateY(0); }

.btn-secondary{
  background: transparent;
  color: var(--text);
  border:1px solid var(--border);
  box-shadow:none;
}
.btn-secondary:hover{ background: rgba(22,119,255,.10); box-shadow:none; }

.btn-ghost{
  width:42px; height:42px; padding:0;
  border-radius:14px;
  background: transparent;
  border:1px solid var(--border);
  box-shadow:none;
}
.btn-ghost:hover{ background: rgba(22,119,255,.10); }

.btn-small{ padding:10px 14px; border-radius:12px; font-weight:900; }
.link{ color: var(--primary); font-weight:800; }

/* hero */
.hero{ padding:44px 0 18px; }
.hero__inner{ display:grid; grid-template-columns: 1.2fr .8fr; gap:22px; align-items:stretch; }
.hero h1{ font-size:40px; letter-spacing:-.3px; margin:0 0 12px; }
.hero__lead{ margin:0; color:var(--muted); line-height:1.75; font-size:15px; }
.hero__badges{ margin-top:16px; display:flex; flex-wrap:wrap; gap:10px; }
.badge{
  background: var(--chip);
  color: var(--chipText);
  border:1px solid color-mix(in oklab, var(--primary) 25%, transparent);
  padding:8px 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:800;
}
.hero__cta{ margin-top:18px; display:flex; gap:12px; flex-wrap:wrap; }
.hero__meta{ margin-top:12px; color:var(--muted); font-size:13px; }

.hero-card{
  background: var(--card);
  border:1px solid var(--border);
  border-radius:20px;
  padding:18px;
  box-shadow: var(--shadow);
}
.hero-card__title{ font-weight:900; margin-bottom:12px; }
.hero-card__hint{ margin-top:10px; color:var(--muted); font-size:12px; }

.kpi-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:10px;
}
.kpi{
  border:1px solid var(--border);
  border-radius:16px;
  padding:12px;
  background: color-mix(in oklab, var(--card) 85%, transparent);
}
.kpi__label{ font-size:12px; color:var(--muted); }
.kpi__value{ font-size:20px; font-weight:950; margin-top:6px; }

/* sections */
.section{ padding:54px 0; }
.section--alt{ background: color-mix(in oklab, var(--bg2) 40%, transparent); border-top:1px solid var(--border); border-bottom:1px solid var(--border); }
.section__head{ margin-bottom:22px; }
.section__head h2{ margin:0; font-size:28px; }
.section__head p{ margin:10px 0 0; color:var(--muted); font-size:14px; line-height:1.6; }

.cards{ display:grid; grid-template-columns: repeat(4, 1fr); gap:14px; }
.card{
  background: var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  padding:18px 16px;
  box-shadow: var(--shadow);
}
.card__icon{ font-size:22px; }
.card__title{ margin-top:10px; font-weight:950; }
.card__desc{ margin-top:8px; color:var(--muted); font-size:13px; line-height:1.7; }

/* dashboard */
.dashboard{ display:grid; grid-template-columns: 1fr 320px; gap:14px; }
.dashboard__main{
  background: var(--dashboardBg);
  color: var(--dashboardText);
  border-radius:20px;
  border:1px solid rgba(255,255,255,.12);
  padding:18px;
  min-height:260px;
  position:relative;
  overflow:hidden;
}
.dashboard__main:before{
  content:"";
  position:absolute; inset:-200px -200px auto auto;
  width:420px; height:420px;
  background: radial-gradient(circle at 30% 30%, rgba(0,234,255,.40), transparent 55%);
  filter: blur(1px);
}
.bigline{
  position:relative;
  display:flex; gap:12px; flex-wrap:wrap;
}
.bigkpi{
  flex:1 1 220px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  padding:14px;
}
.bigkpi__label{ font-size:12px; opacity:.75; }
.bigkpi__value{ font-size:26px; font-weight:950; margin-top:8px; color: var(--dashboardAccent); }

.trend{
  position:relative;
  margin-top:12px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  padding:14px;
}
.trend__title{ font-size:12px; opacity:.75; margin-bottom:10px; }
.spark{
  height:62px;
  display:flex;
  align-items:flex-end;
  gap:6px;
}
.spark span{
  width:10px;
  border-radius:8px 8px 0 0;
  background: rgba(0,234,255,.55);
  display:inline-block;
}

.dashboard__side{ display:flex; flex-direction:column; gap:12px; }
.mini-card{
  background: var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  padding:16px;
  box-shadow: var(--shadow);
}
.mini-card__label{ font-size:12px; color:var(--muted); }
.mini-card__value{ margin-top:8px; font-weight:950; font-size:16px; }
.mini-card__tip{ margin-top:8px; font-size:12px; color:var(--muted); line-height:1.6; }

/* plans */
.plans{ display:grid; grid-template-columns: repeat(3, 1fr); gap:14px; align-items:stretch; }
.plan{
  background: var(--card);
  border:1px solid var(--border);
  border-radius:20px;
  padding:16px;
  box-shadow: var(--shadow);
  position:relative;
}
.plan__top{ display:flex; flex-direction:column; gap:10px; }
.plan__name{ font-weight:950; font-size:16px; }
.plan__price{ font-size:28px; font-weight:1000; letter-spacing:-.2px; }
.plan__price span{ font-size:12px; color:var(--muted); font-weight:800; margin-left:6px; }
.plan__list{ margin:14px 0 0; padding:0; list-style:none; display:grid; gap:10px; }
.plan__list li{ color:var(--muted); font-size:13px; line-height:1.6; padding-left:16px; position:relative; }
.plan__list li:before{ content:"•"; position:absolute; left:0; top:0; color: var(--primary); font-weight:900; }

.plan--hot{
  border-color: color-mix(in oklab, var(--primary) 45%, transparent);
  background: linear-gradient(180deg, color-mix(in oklab, var(--card) 80%, transparent), var(--card));
}
.plan__tag{
  position:absolute; top:14px; right:14px;
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  color: var(--primaryText);
  font-weight:950;
  font-size:12px;
  padding:6px 10px;
  border-radius:999px;
}

/* enterprise */
.enterprise{ display:grid; grid-template-columns: repeat(3, 1fr); gap:14px; }
.enterprise__card{
  background: var(--card);
  border:1px solid var(--border);
  border-radius:20px;
  padding:18px 16px;
  box-shadow: var(--shadow);
}
.enterprise__card--cta{
  border-color: color-mix(in oklab, var(--primary) 45%, transparent);
}
.enterprise__title{ font-weight:950; margin-bottom:10px; }
.enterprise__desc{ color:var(--muted); font-size:13px; line-height:1.7; }
.enterprise__actions{ display:flex; gap:10px; margin-top:14px; flex-wrap:wrap; }

.bullets{ margin:0; padding:0; list-style:none; display:grid; gap:10px; }
.bullets li{ color:var(--muted); font-size:13px; line-height:1.6; padding-left:16px; position:relative; }
.bullets li:before{ content:"✓"; position:absolute; left:0; top:0; color: var(--primary); font-weight:900; }

/* QR */
.qr-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap:14px; }
.qr-grid--modal{ grid-template-columns: repeat(3, 1fr); }
.qr-card{
  background: var(--card);
  border:1px solid var(--border);
  border-radius:20px;
  padding:16px;
  box-shadow: var(--shadow);
  text-align:center;
}
.qr-card__title{ font-weight:950; }
.qr-card img{ width:100%; max-width:260px; border-radius:14px; margin-top:12px; border:1px solid var(--border); background:#fff; }
.qr-card__tip{ color:var(--muted); font-size:12px; margin-top:10px; }

/* footer */
.footer{
  border-top:1px solid var(--border);
  padding:24px 0;
  background: color-mix(in oklab, var(--bg2) 25%, transparent);
}
.footer__inner{ display:flex; justify-content:space-between; gap:14px; align-items:flex-start; flex-wrap:wrap; }
.footer__brand{ font-weight:1000; }
.footer__meta{ color:var(--muted); font-size:13px; margin-top:6px; line-height:1.7; }
.footer__icp{ font-weight:950; }
.footer__links{ display:flex; gap:14px; margin-top:6px; flex-wrap:wrap; }

/* modal */
.modal{ position:fixed; inset:0; display:none; z-index:80; }
.modal[aria-hidden="false"]{ display:block; }
.modal__mask{ position:absolute; inset:0; background: rgba(2,6,23,.55); }
.modal__panel{
  position:relative;
  width:min(920px, calc(100% - 28px));
  margin: 70px auto 0;
  background: var(--bg);
  border:1px solid var(--border);
  border-radius:22px;
  box-shadow: var(--shadow2);
}
.modal__head{
  display:flex; justify-content:space-between; align-items:center;
  padding:16px 16px 12px;
  border-bottom:1px solid var(--border);
}
.modal__title{ font-weight:1000; }
.modal__close{
  width:38px; height:38px;
  border-radius:14px;
  border:1px solid var(--border);
  background: transparent;
  color: var(--text);
  cursor:pointer;
}
.modal__close:hover{ background: rgba(22,119,255,.10); }
.modal__body{ padding:16px; }

/* responsive */
@media (max-width: 980px){
  .hero__inner{ grid-template-columns: 1fr; }
  .cards{ grid-template-columns: repeat(2, 1fr); }
  .dashboard{ grid-template-columns: 1fr; }
  .plans{ grid-template-columns: 1fr; }
  .enterprise{ grid-template-columns: 1fr; }
  .qr-grid{ grid-template-columns: 1fr; }
  .nav a{ display:none; }
}

/* Shop entry */
.shop-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:14px;
}
.shop-card{
  display:block;
  background: var(--card);
  border:1px solid var(--border);
  border-radius:20px;
  padding:18px 16px;
  box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.shop-card:hover{
  transform: translateY(-4px);
  box-shadow: var(--shadow2);
  border-color: color-mix(in oklab, var(--primary) 30%, var(--border));
}
.shop-card__title{ font-weight:1000; font-size:16px; }
.shop-card__desc{ margin-top:10px; color:var(--muted); font-size:13px; line-height:1.7; }
.shop-card__go{ margin-top:14px; font-weight:950; color: var(--primary); }

.shop-card--primary{
  background: linear-gradient(135deg, color-mix(in oklab, var(--primary) 18%, var(--card)), var(--card));
  border-color: color-mix(in oklab, var(--primary) 45%, transparent);
}

@media (max-width: 980px){
  .shop-grid{ grid-template-columns: 1fr; }
}


/* Shop entry v2 (beautified) */
.shop-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:14px;
  align-items:stretch;
}
.shop-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:10px;
  min-height: 210px;
  background:
    radial-gradient(520px 240px at 10% -30%, rgba(22,119,255,.18), transparent 60%),
    radial-gradient(420px 240px at 110% 10%, rgba(64,150,255,.16), transparent 55%),
    var(--card);
  border:1px solid var(--border);
  border-radius:22px;
  padding:18px 16px;
  box-shadow: var(--shadow);
  overflow:hidden;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.shop-card:before{
  content:"";
  position:absolute;
  inset:auto -80px -120px auto;
  width:260px;
  height:260px;
  background: radial-gradient(circle at 30% 30%, rgba(0,234,255,.18), transparent 60%);
  transform: rotate(18deg);
  pointer-events:none;
}
.shop-card:hover{
  transform: translateY(-6px);
  box-shadow: var(--shadow2);
  border-color: color-mix(in oklab, var(--primary) 38%, var(--border));
}
.shop-card__icon{
  width:46px;
  height:46px;
  border-radius:16px;
  display:grid;
  place-items:center;
  font-size:22px;
  background: rgba(22,119,255,.12);
  border:1px solid color-mix(in oklab, var(--primary) 30%, transparent);
}
.shop-card__title{ font-weight:1000; font-size:16px; letter-spacing:.2px; }
.shop-card__desc{ margin-top:2px; color:var(--muted); font-size:13px; line-height:1.7; }
.shop-card__go{ margin-top:auto; font-weight:950; color: var(--primary); }
.shop-card__btn{
  margin-top:10px;
  width:fit-content;
  padding:10px 14px;
  border-radius:14px;
  border:1px solid var(--border);
  background: color-mix(in oklab, var(--bg2) 25%, transparent);
  font-weight:950;
  color: var(--text);
}
.shop-card:hover .shop-card__btn{
  border-color: color-mix(in oklab, var(--primary) 30%, var(--border));
  background: rgba(22,119,255,.10);
}

.shop-card--primary{
  background:
    radial-gradient(620px 280px at 10% -30%, rgba(22,119,255,.30), transparent 62%),
    radial-gradient(520px 280px at 110% 10%, rgba(64,150,255,.24), transparent 60%),
    linear-gradient(135deg, rgba(22,119,255,.16), transparent 42%),
    var(--card);
  border-color: color-mix(in oklab, var(--primary) 55%, transparent);
}
.shop-card--primary .shop-card__btn{
  border-color: color-mix(in oklab, var(--primary) 45%, transparent);
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  color: var(--primaryText);
}
.shop-card--primary:hover .shop-card__btn{
  box-shadow: var(--shadow);
}

@media (max-width: 980px){
  .shop-grid{ grid-template-columns: 1fr; }
  .shop-card{ min-height: auto; }
}