/* 官网 / 收银台 / 激活查询 */
:root {
  --primary: #ff7a00; --primary-2: #ff9a2e; --yellow: #ffd400; --ink: #0f172a; --muted: #64748b; --line: #e8ecf3;
  --canvas: #f6f7fb; --card: #fff; --navy: #0b1020; --ok: #16a34a; --danger: #dc2626;
  --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 10px 30px rgba(15, 23, 42, .07);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif; color: var(--ink); background: var(--canvas);
  -webkit-font-smoothing: antialiased; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 22px; border-radius: 12px; border: 0;
  font-size: 15px; font-weight: 600; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s; white-space: nowrap; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { color: #fff; background: linear-gradient(135deg, var(--primary-2), var(--primary)); box-shadow: 0 10px 24px rgba(255, 122, 0, .28); }
.btn-ghost { color: var(--ink); background: #fff; border: 1px solid var(--line); }
.btn-dark { color: #fff; background: var(--navy); }
.btn-sm { height: 34px; padding: 0 14px; font-size: 13px; border-radius: 9px; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 17px; }
.logo-mark { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; color: #3b1d00; font-size: 17px;
  background: linear-gradient(135deg, #ffe14d, #ffb300 55%, var(--primary)); box-shadow: 0 6px 14px rgba(255, 122, 0, .25); }
/* 顶栏 */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(255, 255, 255, .82); backdrop-filter: saturate(1.6) blur(14px);
  border-bottom: 1px solid rgba(232, 236, 243, .7); }
.nav .wrap { height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.nav-links { display: flex; gap: 26px; font-size: 14.5px; color: #334155; }
.nav-links a:hover { color: var(--primary); }
/* 首屏 */
.hero { position: relative; overflow: hidden; padding: 84px 0 96px;
  background: radial-gradient(900px 420px at 85% -10%, rgba(255, 212, 0, .28), transparent 60%),
    radial-gradient(700px 420px at 0% 10%, rgba(255, 122, 0, .14), transparent 60%), #fff; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: 99px; font-size: 13px; color: #9a4b00;
  background: #fff4e5; border: 1px solid #ffe0b3; }
.hero h1 { font-size: 50px; line-height: 1.18; margin: 18px 0 16px; letter-spacing: -.5px; }
.hero h1 em { font-style: normal; background: linear-gradient(135deg, #ff9a2e, #ff5e00); -webkit-background-clip: text; color: transparent; }
.hero p.lead { font-size: 18px; color: #475569; margin: 0 0 30px; max-width: 560px; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero .tip { margin-top: 16px; font-size: 13px; color: var(--muted); }
/* 产品截图的「应用窗口」外框 */
.shot { margin: 0; border-radius: 14px; background: #0b1020; overflow: hidden; box-shadow: 0 24px 60px rgba(15, 23, 42, .26); border: 1px solid rgba(15, 23, 42, .08); }
.shot-bar { height: 36px; display: flex; align-items: center; gap: 7px; padding: 0 14px; background: #121a33; }
.shot-bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.shot-bar i:nth-child(2) { background: #febc2e; } .shot-bar i:nth-child(3) { background: #28c840; }
.shot-bar span { margin-left: 10px; color: #8ea2c0; font-size: 12px; }
.shot img { display: block; width: 100%; height: auto; }
.hero-shot { transform: perspective(1600px) rotateY(-3deg); }
.shots { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.shot figcaption { padding: 12px 16px; color: #475569; font-size: 13.5px; background: #fff; }
/* 区块 */
section { padding: 84px 0; }
.sec-head { text-align: center; max-width: 680px; margin: 0 auto 46px; }
.sec-head h2 { font-size: 34px; margin: 0 0 10px; letter-spacing: -.3px; }
.sec-head p { color: var(--muted); margin: 0; font-size: 16px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 26px; box-shadow: var(--shadow);
  transition: transform .2s, box-shadow .2s; }
.feature:hover { transform: translateY(-3px); box-shadow: 0 18px 40px rgba(15, 23, 42, .1); }
.feature .ico { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; font-size: 22px; background: #fff4e5; margin-bottom: 16px; }
.feature h3 { margin: 0 0 8px; font-size: 18px; }
.feature p { margin: 0; color: var(--muted); font-size: 14.5px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
.step { position: relative; padding: 26px 26px 26px 78px; background: #fff; border-radius: 18px; border: 1px solid var(--line); }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 24px; top: 24px; width: 38px; height: 38px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 800; color: #fff; background: var(--navy); }
.step h3 { margin: 0 0 4px; font-size: 17px; } .step p { margin: 0; color: var(--muted); font-size: 14px; }
.dark { background: var(--navy); color: #e2e8f0; }
.dark .sec-head p { color: #94a3b8; }
.pricing { display: flex; justify-content: center; gap: 22px; flex-wrap: wrap; }
.price-card { position: relative; width: 340px; background: #111a33; border: 1px solid rgba(255, 255, 255, .08); border-radius: 22px; padding: 30px; }
.price-card.hot { background: linear-gradient(160deg, #1d2547, #111a33 60%); border-color: rgba(255, 154, 46, .6); box-shadow: 0 0 0 1px rgba(255, 154, 46, .25), 0 30px 60px rgba(0, 0, 0, .35); }
.price-card .tag { position: absolute; top: -12px; right: 22px; padding: 3px 12px; border-radius: 99px; font-size: 12px; color: #3b1d00; background: linear-gradient(135deg, #ffe14d, #ffb300); font-weight: 700; }
.price-card h3 { margin: 0; font-size: 19px; color: #fff; }
.price-card .amount { margin: 16px 0 4px; font-size: 42px; font-weight: 800; color: #fff; }
.price-card .amount small { font-size: 15px; color: #94a3b8; font-weight: 500; }
.price-card .desc { color: #94a3b8; font-size: 14px; min-height: 66px; margin: 0 0 22px; }
.price-card .btn { width: 100%; }
.faq { max-width: 820px; margin: 0 auto; display: grid; gap: 12px; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 16px 20px; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 15.5px; list-style: none; }
.faq summary::after { content: '+'; float: right; color: var(--muted); }
.faq details[open] summary::after { content: '−'; }
.faq p { margin: 10px 0 0; color: #475569; font-size: 14.5px; }
.download { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.footer { padding: 34px 0; background: #070b17; color: #64748b; font-size: 13px; }
.footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.notice-bar { background: #fff4e5; color: #9a4b00; text-align: center; font-size: 13.5px; padding: 8px 16px; border-bottom: 1px solid #ffe0b3; }
/* 收银台 / 激活查询 */
.pay-page { min-height: 100vh; background: radial-gradient(800px 380px at 50% -10%, rgba(255, 212, 0, .22), transparent 60%), var(--canvas); }
.pay-top { height: 64px; display: flex; align-items: center; justify-content: space-between; }
.pay-shell { max-width: 940px; margin: 18px auto 60px; display: grid; grid-template-columns: 340px 1fr; gap: 20px; padding: 0 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); padding: 26px; }
.card h2 { margin: 0 0 16px; font-size: 18px; }
.kv { display: grid; grid-template-columns: 76px 1fr; gap: 10px 12px; font-size: 14px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; word-break: break-all; }
.big-amount { font-size: 34px; font-weight: 800; color: var(--primary); margin: 6px 0 18px; }
.sku-list { display: grid; gap: 10px; margin-bottom: 16px; }
.sku { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 16px; border: 1.5px solid var(--line); border-radius: 14px; cursor: pointer; }
.sku.on { border-color: var(--primary); background: #fff8f0; }
.sku b { font-size: 15px; } .sku small { display: block; color: var(--muted); font-size: 12.5px; }
.sku .p { font-size: 20px; font-weight: 800; color: var(--primary); }
.field { display: grid; gap: 6px; margin-bottom: 14px; font-size: 13.5px; color: #334155; }
.field input { height: 42px; border: 1px solid var(--line); border-radius: 10px; padding: 0 12px; font-size: 14px; outline: none; }
.field input:focus { border-color: #ffbe73; box-shadow: 0 0 0 3px rgba(255, 122, 0, .12); }
.channels { display: flex; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }
.channel { flex: 1; min-width: 130px; height: 50px; border-radius: 12px; border: 1.5px solid var(--line); background: #fff; font-size: 15px; font-weight: 600; cursor: pointer; }
.channel.on.alipay { border-color: #1677ff; color: #1677ff; background: #f0f6ff; }
.channel.on.wechat { border-color: #07c160; color: #07a050; background: #effbf4; }
.channel.on.test { border-color: #7c3aed; color: #7c3aed; background: #f5f0ff; }
.qr-box { display: grid; place-items: center; gap: 10px; padding: 18px; border-radius: 16px; background: #fafbfd; border: 1px dashed var(--line); min-height: 280px; text-align: center; }
.qr-box svg { width: 220px; height: 220px; }
.qr-box .hint { color: var(--muted); font-size: 13.5px; }
.countdown { font-variant-numeric: tabular-nums; color: var(--danger); font-weight: 600; }
.success { text-align: center; padding: 10px 0; }
.success .ok-ico { width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 12px; display: grid; place-items: center; font-size: 32px; color: #fff; background: var(--ok); }
.code-box { width: 100%; min-height: 96px; padding: 12px; border-radius: 12px; border: 1px solid var(--line); background: #f8fafc; font-family: ui-monospace, Menlo, monospace;
  font-size: 12.5px; word-break: break-all; resize: none; }
.muted { color: var(--muted); font-size: 13.5px; }
.err { color: var(--danger); font-size: 13.5px; }
.toast { position: fixed; left: 50%; top: 22px; transform: translate(-50%, -20px); opacity: 0; transition: .2s; z-index: 99; padding: 10px 18px; border-radius: 10px;
  background: #111827; color: #fff; font-size: 14px; pointer-events: none; }
.toast.show { opacity: 1; transform: translate(-50%, 0); } .toast.ok { background: var(--ok); } .toast.error { background: var(--danger); }
@media (max-width: 900px) {
  .hero .wrap, .pay-shell { grid-template-columns: 1fr; } .grid3, .steps, .shots { grid-template-columns: 1fr; } .nav-links { display: none; }
  .hero h1 { font-size: 36px; } section { padding: 60px 0; } .hero-shot { transform: none; }
}