*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --brand-primary: #1B4FD8;
  --brand-deep: #0F2E8A;
  --brand-light: #EEF3FF;
  --brand-accent: #F97316;
  --text-primary: #1A1A2E;
  --text-secondary: #4A4A68;
  --text-muted: #8888A8;
  --bg-white: #FFFFFF;
  --bg-subtle: #F7F8FF;
  --bg-section: #F0F3FF;
  --border: rgba(27, 79, 216, 0.12);
  --shadow-sm: 0 1px 3px rgba(27, 79, 216, 0.08);
  --shadow-md: 0 4px 16px rgba(27, 79, 216, 0.12);
  --shadow-lg: 0 8px 32px rgba(27, 79, 216, 0.16);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  color: var(--text-primary);
  background: var(--bg-white);
  line-height: 1.7;
  font-size: 15px;
}

a { color: var(--brand-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ===== NAV ===== */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1080px; margin: 0 auto; padding: 0 24px;
  height: 64px; display: flex; align-items: center; justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; font-size: 20px; color: var(--brand-primary); }
.logo-icon { width: 36px; height: 36px; background: var(--brand-primary); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: white; font-size: 18px; font-weight: 800; }
.nav-links { display: flex; align-items: center; gap: 18px; list-style: none; flex-wrap: nowrap; }
.nav-links a { text-decoration: none; color: var(--text-secondary); font-size: 14px; transition: color 0.2s; white-space: nowrap; }
.nav-links a:hover { color: var(--brand-primary); }
.nav-cta { background: var(--brand-primary); color: white !important; padding: 8px 20px; border-radius: var(--radius-sm); font-weight: 500; }

/* ===== PAGE HEADER ===== */
.page-header {
  background: linear-gradient(135deg, var(--brand-deep) 0%, var(--brand-primary) 100%);
  padding: 64px 24px 48px;
  text-align: center;
}
.page-breadcrumb { font-size: 13px; color: rgba(255,255,255,0.6); margin-bottom: 16px; }
.page-breadcrumb a { color: rgba(255,255,255,0.8); }
.page-header h1 { font-size: clamp(26px, 4vw, 38px); font-weight: 800; color: white; line-height: 1.3; margin-bottom: 12px; }
.page-subtitle { font-size: 16px; color: rgba(255,255,255,0.75); }

/* ===== CONTENT SECTION ===== */
.content-section { padding: 64px 24px; }
.content-section.alt-bg { background: var(--bg-subtle); }
.container { max-width: 860px; margin: 0 auto; }
.section-heading { font-size: 24px; font-weight: 700; color: var(--text-primary); margin-bottom: 24px; line-height: 1.4; }
.section-heading.center { text-align: center; }

/* ===== TABLE ===== */
.table-wrap { overflow-x: auto; }
.compare-table { width: 100%; border-collapse: collapse; background: white; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); }
.compare-table th { background: var(--brand-primary); color: white; padding: 14px 16px; text-align: left; font-size: 14px; font-weight: 600; }
.compare-table td { padding: 14px 16px; border-bottom: 1px solid var(--border); font-size: 14px; vertical-align: top; }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table .source { font-size: 12px; color: var(--text-muted); display: block; margin-top: 4px; }

/* ===== RULES LIST ===== */
.rules-list { display: flex; flex-direction: column; gap: 16px; }
.rule-item { display: flex; gap: 16px; background: white; border: 1px solid var(--border); border-radius: var(--radius-md); padding: 20px 24px; }
.rule-num { width: 32px; height: 32px; border-radius: 50%; background: var(--brand-light); color: var(--brand-primary); font-weight: 700; font-size: 15px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.rule-content strong { display: block; font-size: 15px; color: var(--text-primary); margin-bottom: 4px; }
.rule-content p { font-size: 14px; color: var(--text-secondary); }

/* ===== COMPLAINT CARD ===== */
.complaint-card { background: white; border: 1px solid var(--border); border-left: 4px solid var(--brand-accent); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); }
.complaint-header { display: flex; justify-content: space-between; align-items: center; padding: 14px 20px; background: var(--bg-subtle); border-bottom: 1px solid var(--border); }
.complaint-id { font-size: 13px; font-weight: 600; color: var(--text-secondary); }
.complaint-status { background: #DCFCE7; color: #166534; font-size: 12px; font-weight: 600; padding: 3px 12px; border-radius: 12px; }
.complaint-body { padding: 16px 20px; }
.complaint-body p { font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; }
.complaint-footer { padding: 14px 20px; background: var(--bg-subtle); font-size: 13px; color: var(--text-muted); border-top: 1px solid var(--border); }

/* ===== FAQ LIST ===== */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item-simple { background: white; border: 1px solid var(--border); border-radius: var(--radius-md); padding: 18px 22px; }
.faq-item-simple h3 { font-size: 15px; font-weight: 600; color: var(--text-primary); margin-bottom: 8px; }
.faq-item-simple p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* ===== INFO CARDS ===== */
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.info-card { background: white; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; transition: box-shadow 0.2s; }
.info-card:hover { box-shadow: var(--shadow-md); }
.info-card .icon { width: 48px; height: 48px; background: var(--brand-light); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 16px; }
.info-card h3 { font-size: 17px; font-weight: 700; color: var(--text-primary); margin-bottom: 10px; }
.info-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.info-card .stat-num { font-size: 32px; font-weight: 800; color: var(--brand-primary); margin-bottom: 4px; }
.info-card .stat-label { font-size: 13px; color: var(--text-muted); }

/* ===== CTA BOX ===== */
.cta-box { text-align: center; padding: 48px 24px; background: var(--brand-light); border-radius: var(--radius-lg); margin-top: 40px; }
.cta-box h3 { font-size: 22px; font-weight: 700; color: var(--text-primary); margin-bottom: 12px; }
.cta-box p { font-size: 15px; color: var(--text-secondary); margin-bottom: 24px; }
.btn-primary-solid { display: inline-flex; align-items: center; gap: 8px; background: var(--brand-primary); color: white; padding: 12px 28px; border-radius: var(--radius-md); font-weight: 600; font-size: 15px; text-decoration: none; transition: background 0.2s; }
.btn-primary-solid:hover { background: var(--brand-deep); text-decoration: none; }

/* ===== BRAND CLARIFY ===== */
.brand-clarify { background: #FFF7ED; border-top: 1px solid rgba(249,115,22,0.2); border-bottom: 1px solid rgba(249,115,22,0.2); padding: 20px 24px; }
.brand-clarify .inner { max-width: 1080px; margin: 0 auto; font-size: 13px; color: #92400E; line-height: 1.7; }
.brand-clarify strong { color: #B45309; }

/* ===== FOOTER ===== */
footer { background: var(--text-primary); color: rgba(255,255,255,0.65); padding: 60px 24px 32px; }
.footer-inner { max-width: 1080px; margin: 0 auto; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand .logo { color: white; margin-bottom: 14px; }
.footer-brand p { font-size: 13px; line-height: 1.7; max-width: 260px; }
.footer-col h4 { font-size: 14px; font-weight: 600; color: white; margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 13px; color: rgba(255,255,255,0.55); text-decoration: none; }
.footer-col ul li a:hover { color: white; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 12px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .partner-grid { grid-template-columns: 1fr; }
  .screenshot-grid { grid-template-columns: 1fr 1fr; }
  .gallery-tabs { overflow-x: auto; flex-wrap: nowrap; padding-bottom: 4px; }
}

/* ===== 合作院校专属样式 ===== */
.partner-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.partner-card {
  background: white; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px 24px; position: relative; overflow: hidden; transition: transform 0.2s, box-shadow 0.2s;
}
.partner-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.partner-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent));
}
.partner-card .card-head { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.partner-logo {
  width: 56px; height: 56px; border-radius: 50%; background: var(--brand-light);
  color: var(--brand-primary); display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 18px; flex-shrink: 0;
}
.partner-card h3 { font-size: 18px; font-weight: 700; color: var(--text-primary); line-height: 1.3; }
.partner-tag {
  display: inline-block; font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 12px;
  background: rgba(27, 79, 216, 0.08); color: var(--brand-primary); margin-bottom: 12px;
}
.partner-tag.open { background: rgba(22, 163, 74, 0.08); color: #166534; }
.partner-tag.self { background: rgba(249, 115, 22, 0.08); color: #c2410c; }
.partner-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }
.partner-card .verify-link {
  display: inline-flex; align-items: center; gap: 4px; margin-top: 14px; font-size: 13px;
  color: var(--brand-primary); font-weight: 600;
}

.gallery-section { background: var(--bg-subtle); border-radius: var(--radius-lg); padding: 28px; }
.gallery-tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.gallery-tab {
  border: 1px solid var(--border); background: white; padding: 10px 18px; border-radius: var(--radius-md);
  font-size: 14px; font-weight: 600; color: var(--text-secondary); cursor: pointer; transition: all 0.2s;
}
.gallery-tab:hover { border-color: var(--brand-primary); color: var(--brand-primary); }
.gallery-tab.active { background: var(--brand-primary); color: white; border-color: var(--brand-primary); }
.gallery-pane { display: none; }
.gallery-pane.active { display: block; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
.screenshot-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.screenshot-grid img {
  width: 100%; height: 170px; object-fit: cover; border-radius: var(--radius-md);
  border: 1px solid var(--border); cursor: zoom-in; background: white; transition: transform 0.2s, box-shadow 0.2s;
}
.screenshot-grid img:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.gallery-path {
  margin-top: 18px; padding: 14px 16px; background: white; border-radius: var(--radius-md);
  border-left: 4px solid var(--brand-accent); font-size: 13px; color: var(--text-secondary); line-height: 1.7;
}
.gallery-path strong { color: var(--text-primary); }

.lightbox {
  display: none; position: fixed; inset: 0; z-index: 200; background: rgba(0,0,0,0.88);
  align-items: center; justify-content: center; padding: 24px;
}
.lightbox.active { display: flex; }
.lightbox img { max-width: 100%; max-height: 90vh; border-radius: var(--radius-md); box-shadow: 0 20px 60px rgba(0,0,0,0.4); }
.lightbox-close {
  position: absolute; top: 20px; right: 28px; color: white; font-size: 36px; cursor: pointer; line-height: 1;
}
.lightbox-caption {
  position: absolute; bottom: 24px; left: 24px; right: 24px; text-align: center;
  color: rgba(255,255,255,0.85); font-size: 14px;
}

.verify-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.verify-card {
  background: white; border: 1px solid var(--border); border-radius: var(--radius-md); padding: 24px;
  text-align: center; transition: box-shadow 0.2s;
}
.verify-card:hover { box-shadow: var(--shadow-md); }
.verify-card .step-num {
  width: 40px; height: 40px; border-radius: 50%; background: var(--brand-primary); color: white;
  display: flex; align-items: center; justify-content: center; font-weight: 700; margin: 0 auto 14px;
}
.verify-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.verify-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }

.section-lead { font-size: 15px; color: var(--text-secondary); margin-top: -12px; margin-bottom: 24px; line-height: 1.7; }