:root {
  --bg: #f7f8fb;
  --bg-soft: #eef2ff;
  --card: #ffffff;
  --text: #111827;
  --muted: #667085;
  --muted-2: #98a2b3;
  --line: #e5e7eb;
  --line-strong: #d0d5dd;
  --primary: #3958f6;
  --primary-2: #6d5dfc;
  --primary-soft: #eef1ff;
  --success: #17a56b;
  --success-soft: #eaf8f1;
  --warning: #f59e0b;
  --danger: #d92d20;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .04), 0 8px 20px rgba(16, 24, 40, .05);
  --shadow-md: 0 12px 34px rgba(16, 24, 40, .08);
  --shadow-lg: 0 24px 70px rgba(57, 88, 246, .15);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --font: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 18% -10%, rgba(57, 88, 246, .16), transparent 34rem),
    radial-gradient(circle at 90% 8%, rgba(109, 93, 252, .12), transparent 30rem),
    var(--bg);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.narrow { width: min(860px, calc(100% - 32px)); margin: 0 auto; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.announce {
  background: linear-gradient(90deg, #2637d9, #6d5dfc);
  color: #fff;
  font-size: 14px;
}
.announce-inner { min-height: 42px; display: flex; align-items: center; justify-content: center; gap: 10px; text-align: center; }
.announce-pill { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; background: rgba(255,255,255,.16); font-size: 12px; font-weight: 800; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 248, 251, .86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(229, 231, 235, .82);
}
.nav { height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 900; letter-spacing: -.02em; }
.brand-logo { width: 34px; height: 34px; border-radius: 12px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); box-shadow: 0 10px 20px rgba(57,88,246,.22); }
.brand-logo::before { content: "G"; font-weight: 900; }
.nav-links { display: flex; align-items: center; gap: 24px; color: #475467; font-size: 14px; font-weight: 700; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.mobile-menu { display: none; width: 42px; padding: 0; }
.btn {
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 800;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); box-shadow: 0 12px 24px rgba(57,88,246,.24); }
.btn-primary:hover { box-shadow: 0 16px 30px rgba(57,88,246,.3); }
.btn-secondary { color: var(--primary); background: #fff; border-color: var(--line); box-shadow: var(--shadow-sm); }
.btn-ghost { color: #344054; background: transparent; border-color: var(--line); }
.btn-block { width: 100%; }

.hero { padding: 82px 0 42px; }
.hero.centered { text-align: center; }
.hero-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--primary); background: var(--primary-soft); border: 1px solid #dfe4ff; border-radius: 999px; padding: 7px 12px; font-size: 13px; font-weight: 900; }
.hero-title { margin: 18px auto 16px; max-width: 900px; font-size: clamp(42px, 7vw, 76px); line-height: 1.05; letter-spacing: -.055em; font-weight: 900; }
.hero-title .accent-text { background: linear-gradient(90deg, var(--primary), var(--primary-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-desc { max-width: 760px; margin: 0 auto; color: var(--muted); font-size: clamp(16px, 2vw, 20px); }
.hero-actions { margin-top: 30px; display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }
.hero-panel {
  margin: 42px auto 0;
  max-width: 940px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,.82);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.hero-panel-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--line); background: #fff; }
.browser-dots { display: flex; gap: 6px; }
.browser-dots i { width: 10px; height: 10px; border-radius: 50%; background: #f04438; }
.browser-dots i:nth-child(2) { background: #fdb022; }
.browser-dots i:nth-child(3) { background: #12b76a; }
.hero-panel-body { padding: 26px; display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.mini-stat, .glass-card { border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; padding: 20px; box-shadow: var(--shadow-sm); }
.mini-stat strong { display: block; font-size: 28px; letter-spacing: -.04em; }
.mini-stat span { color: var(--muted); font-size: 13px; }

section { padding: 70px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 28px; }
.section-kicker { color: var(--primary); font-size: 13px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.section-title { margin: 8px 0 0; font-size: clamp(28px, 4.6vw, 46px); line-height: 1.12; letter-spacing: -.04em; font-weight: 900; }
.section-desc { margin: 0; max-width: 560px; color: var(--muted); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.card { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--card); box-shadow: var(--shadow-sm); }
.adv-card { padding: 24px; }
.icon { width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center; color: var(--primary); background: var(--primary-soft); font-weight: 900; margin-bottom: 18px; }
.adv-card h3, .flow-card h3, .price-card h3, .guide-card h3, .faq-preview-card h3 { margin: 0 0 8px; font-size: 20px; letter-spacing: -.02em; }
.adv-card p, .flow-card p, .guide-card p, .faq-preview-card p { margin: 0; color: var(--muted); }
.trust-row { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.trust-pill { display: inline-flex; align-items: center; gap: 8px; padding: 9px 13px; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: #475467; font-size: 13px; font-weight: 800; box-shadow: var(--shadow-sm); }
.trust-pill::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--success); }
.flow-card { padding: 26px; position: relative; overflow: hidden; }
.flow-num { display: inline-flex; width: 38px; height: 38px; border-radius: 50%; align-items: center; justify-content: center; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); font-weight: 900; margin-bottom: 18px; }

.review-wall { overflow: hidden; padding: 14px 0; }
.review-row { display: flex; gap: 14px; min-width: max-content; margin-bottom: 14px; animation: slide-left 42s linear infinite; }
.review-row.reverse { animation-name: slide-right; }
.review-card { width: 330px; border: 1px solid var(--line); border-radius: 20px; background: #fff; padding: 16px; box-shadow: var(--shadow-sm); }
.review-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.avatar { width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); font-weight: 900; }
.review-name { font-weight: 900; }
.review-tag { color: var(--muted); font-size: 12px; }
.stars { color: #f59e0b; letter-spacing: 1px; font-size: 13px; }
.review-card p { margin: 9px 0 0; color: #344054; font-size: 14px; }
@keyframes slide-left { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes slide-right { from { transform: translateX(-50%); } to { transform: translateX(0); } }

.price-card { padding: 28px; position: relative; }
.price-card.featured { border-color: #c7d2fe; box-shadow: var(--shadow-lg); }
.badge { display: inline-flex; align-items: center; border-radius: 999px; background: var(--primary-soft); color: var(--primary); padding: 5px 10px; font-size: 12px; font-weight: 900; }
.price { margin: 18px 0; font-size: 44px; line-height: 1; font-weight: 900; letter-spacing: -.045em; }
.price small { color: var(--muted); font-size: 14px; font-weight: 700; letter-spacing: 0; }
.feature-list { list-style: none; margin: 20px 0 0; padding: 0; display: grid; gap: 11px; color: #344054; }
.feature-list li { display: flex; gap: 10px; align-items: flex-start; }
.feature-list li::before { content: "✓"; color: var(--success); font-weight: 900; flex: 0 0 auto; }
.price-actions { margin-top: 24px; display: grid; gap: 10px; }
.hint-box { border: 1px solid #d7defe; border-radius: var(--radius-lg); background: linear-gradient(135deg, #fff, #f3f5ff); padding: 18px; color: #344054; }

.purchase-layout { display: grid; grid-template-columns: minmax(0, .85fr) minmax(420px, 1.15fr); gap: 24px; align-items: start; }
.stepper { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 22px; }
.step { border: 1px solid var(--line); border-radius: 999px; background: #fff; padding: 9px 12px; color: var(--muted); font-size: 13px; font-weight: 800; text-align: center; }
.step.active { color: var(--primary); background: var(--primary-soft); border-color: #d7defe; }
.side-panel, .form-panel, .query-card { border: 1px solid var(--line); border-radius: var(--radius-xl); background: #fff; box-shadow: var(--shadow-md); }
.side-panel { padding: 24px; }
.guide-list { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 14px; }
.guide-list li { display: grid; grid-template-columns: 32px 1fr; gap: 12px; }
.guide-list b { display: block; }
.guide-list span:first-child { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); font-weight: 900; }
.mini-faq { margin-top: 22px; border-top: 1px solid var(--line); padding-top: 18px; display: grid; gap: 12px; }
.mini-faq details { border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; background: #fafbff; }
.mini-faq summary { cursor: pointer; font-weight: 800; }
.mini-faq p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.form-panel { padding: 26px; }
.form-row { display: grid; gap: 8px; margin-bottom: 18px; }
.form-row label { font-weight: 900; }
.input-inline { display: flex; gap: 10px; }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: #fff;
  color: var(--text);
  outline: none;
  padding: 12px 14px;
}
textarea { min-height: 150px; resize: vertical; font-family: var(--mono); font-size: 12px; }
input:focus, textarea:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(57,88,246,.12); }
.field-help { color: var(--muted); font-size: 13px; margin: 0; }
.error-text { color: var(--danger); font-size: 13px; margin: 4px 0 0; }
.ok-card { border: 1px solid #b7ebd0; border-radius: 16px; background: var(--success-soft); color: #087443; padding: 14px; }
.agree { display: flex; gap: 10px; align-items: flex-start; color: var(--muted); font-size: 13px; margin: 6px 0 18px; }
.agree input { width: 17px; height: 17px; margin-top: 3px; padding: 0; flex: 0 0 auto; }

.query-page { min-height: calc(100vh - 260px); display: grid; place-items: center; padding: 70px 0; }
.query-card { width: min(720px, 100%); padding: 28px; }
.tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 20px 0; padding: 6px; border-radius: 999px; background: #f2f4f7; }
.tab { border: 0; border-radius: 999px; min-height: 38px; background: transparent; color: var(--muted); font-weight: 900; }
.tab.active { background: #fff; color: var(--primary); box-shadow: var(--shadow-sm); }
.query-result { margin-top: 18px; border: 1px solid #d7defe; border-radius: 18px; background: #f8f9ff; padding: 16px; }
.timeline { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 10px; }
.timeline li { display: grid; grid-template-columns: 18px 1fr; gap: 10px; color: var(--muted); }
.timeline li::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--line-strong); margin-top: 8px; }
.timeline li.done::before { background: var(--success); }

.faq-grid, .blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.faq-preview-card, .guide-card { padding: 20px; }
.footer { margin-top: 60px; background: #101828; color: #d0d5dd; padding: 46px 0; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1fr) repeat(3, minmax(120px, 180px)); gap: 32px; }
.footer strong { color: #fff; }
.footer p { margin: 8px 0 0; color: #98a2b3; }
.footer a { display: block; color: #d0d5dd; margin-top: 8px; font-size: 14px; }
.footer a:hover { color: #fff; }
.fineprint { margin-top: 28px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); color: #98a2b3; font-size: 12px; }

.service-float { position: fixed; right: 22px; bottom: 22px; z-index: 60; display: grid; gap: 10px; justify-items: end; }
.service-card { width: 238px; border: 1px solid var(--line); border-radius: 20px; background: #fff; box-shadow: var(--shadow-lg); padding: 14px; }
.service-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; font-weight: 900; margin-bottom: 10px; }
.icon-btn { width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 50%; background: #fff; color: var(--muted); }
.qr-mock { width: 110px; height: 110px; margin: 0 auto 10px; border: 8px solid #fff; border-radius: 14px; background: linear-gradient(90deg, #111827 8px, transparent 8px) 0 0/20px 20px, linear-gradient(#111827 8px, transparent 8px) 0 0/20px 20px, #fff; box-shadow: inset 0 0 0 1px var(--line); }
.service-card p { text-align: center; margin: 0; color: var(--muted); font-size: 12px; }
.service-fab { border: 0; border-radius: 999px; min-height: 46px; padding: 0 16px; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); box-shadow: var(--shadow-lg); font-weight: 900; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(12px); opacity: 0; pointer-events: none; z-index: 100; border-radius: 999px; background: #101828; color: #fff; padding: 11px 15px; box-shadow: var(--shadow-md); transition: opacity .18s ease, transform .18s ease; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 980px) {
  .hero-panel-body, .grid-3, .faq-grid, .blog-grid { grid-template-columns: 1fr 1fr; }
  .purchase-layout, .grid-2 { grid-template-columns: 1fr; }
  .section-head { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .announce-inner { padding: 9px 0; }
  .nav { height: 60px; }
  .mobile-menu { display: inline-flex; }
  .nav-links { position: absolute; left: 16px; right: 16px; top: 66px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 10px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow-md); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 11px 12px; }
  .nav-actions .btn-secondary:not(.mobile-menu) { display: none; }
  .hero { padding-top: 52px; }
  .hero-panel-body, .grid-3, .grid-2, .faq-grid, .blog-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .review-card { width: 286px; }
  .stepper { grid-template-columns: 1fr 1fr; }
  .input-inline { flex-direction: column; }
  .tabs { grid-template-columns: 1fr; border-radius: 18px; }
  .footer-grid { grid-template-columns: 1fr; }
  .service-card { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

.query-result-row { display: flex; justify-content: space-between; gap: 16px; padding: 7px 0; border-top: 1px dashed #d7defe; }
.query-result-row:first-of-type { border-top: 0; }
@media (max-width: 760px) { .query-result-row { display: grid; } }