/* UITG SEO 承接页（/seo/go/）共享样式 — 轻量、可读、可点 */
:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

.page {
  max-width: 42rem;
  margin: 0 auto;
  padding: 1.25rem 1rem 3rem;
}

/* 顶部条 */
.topbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-bottom: 1.25rem;
  margin-bottom: 0.25rem;
  border-bottom: 1px solid var(--border);
}

.topbar img {
  height: 36px;
  width: auto;
  display: block;
}

.topbar span {
  font-size: 0.8125rem;
  color: var(--muted);
  font-weight: 500;
}

/* Hero */
.hero {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem 1.25rem 1.75rem;
  margin-bottom: 1.25rem;
  border: 1px solid var(--border);
}

.hero--luck {
  border-top: 4px solid #7c3aed;
}

.hero--ebk {
  border-top: 4px solid #2563eb;
}

.hero--k12 {
  border-top: 4px solid #059669;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.lead {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--muted);
}

.badge {
  display: inline-block;
  margin-bottom: 0.75rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
  background: #f1f5f9;
  border-radius: 6px;
}

/* 区块 */
section {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.25rem 1.5rem;
  margin-bottom: 1rem;
  border: 1px solid var(--border);
}

section h2 {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

/* CTA 列表 */
.cta-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cta-list li {
  margin: 0;
}

.cta {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.875rem 1rem;
  border-radius: 10px;
  text-decoration: none;
  border: 1px solid var(--border);
  background: #fafbfc;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}

.cta:hover {
  border-color: #cbd5e1;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
  background: #fff;
}

.cta--primary {
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  border-color: #1e293b;
  color: #fff;
}

.cta--primary:hover {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  border-color: #0f172a;
  color: #fff;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.2);
}

.cta--accent-luck {
  background: linear-gradient(135deg, #6d28d9 0%, #7c3aed 100%);
  border-color: #6d28d9;
  color: #fff;
}

.cta--accent-luck:hover {
  background: linear-gradient(135deg, #5b21b6 0%, #6d28d9 100%);
  color: #fff;
}

.cta--accent-ebk {
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
  border-color: #1d4ed8;
  color: #fff;
}

.cta--accent-ebk:hover {
  background: linear-gradient(135deg, #1e40af 0%, #1d4ed8 100%);
  color: #fff;
}

.cta-title {
  font-weight: 700;
  font-size: 1rem;
}

.cta-sub {
  font-size: 0.8125rem;
  opacity: 0.92;
}

.cta:not(.cta--primary):not(.cta--accent-luck):not(.cta--accent-ebk) .cta-title {
  color: #1e40af;
}

.cta:not(.cta--primary):not(.cta--accent-luck):not(.cta--accent-ebk) .cta-sub {
  color: var(--muted);
}

/* 品牌区 */
.brand-line {
  margin: 0;
  font-size: 0.9375rem;
}

.brand-line a {
  color: #2563eb;
  font-weight: 600;
  text-decoration: none;
}

.brand-line a:hover {
  text-decoration: underline;
}

footer {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--muted);
  text-align: center;
}

footer a {
  color: var(--muted);
}

@media (min-width: 480px) {
  .hero h1 {
    font-size: 1.625rem;
  }
}