:root {
  --primary: #F57C00;
  --primary-light: #FFB74D;
  --primary-dark: #E65100;
  --navy: #1A2A3A;
  --navy-dark: #0F1A24;
  --navy-light: #2C3E50;
  --cream: #FFFCF7;
  --cream-warm: #FFF8F0;
  --gold: #D4A017;
  --gold-light: #F0C040;
  --white: #FFFFFF;
  --text: #2D2D2D;
  --text-muted: #777777;
  --text-light: #555555;
  --border: #E8E0D0;
  --border-light: #F0ECE4;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0,0,0,0.06);
  --shadow-strong: 0 8px 32px rgba(0,0,0,0.1);
  --transition: 0.25s ease;
  --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --max-width: 1200px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--cream); color: var(--text); line-height: 1.7; font-size: 16px; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ── LAYOUT ── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-warm { background: var(--cream-warm); }
.section-navy { background: var(--navy); }

/* ── HEADER ── */
.header {
  position: sticky; top: 0; z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo img { height: 36px; width: auto; }
.logo span { font-size: 1.1rem; font-weight: 700; color: var(--navy); letter-spacing: 0.02em; }
.logo em { color: var(--primary); font-style: normal; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a { padding: 6px 14px; border-radius: 6px; font-size: 0.9rem; color: var(--text-muted); transition: var(--transition); }
.nav a:hover, .nav a.active { color: var(--primary); background: rgba(245,124,0,0.06); }
.nav-cta {
  margin-left: 8px;
  background: var(--primary) !important;
  color: var(--white) !important;
  font-weight: 700;
  border-radius: 6px;
  padding: 8px 18px !important;
}
.nav-cta:hover { background: var(--primary-dark) !important; }

.menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.menu-toggle span { display: block; width: 22px; height: 2px; background: var(--navy); border-radius: 2px; transition: var(--transition); }

/* ── PAGE HEADER ── */
.page-header {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  padding: 56px 0 48px;
  text-align: center;
}
.page-header h1 { font-size: 2.4rem; font-weight: 900; color: var(--white); }
.page-header h1 span { color: var(--primary-light); }
.page-header p { color: rgba(255,255,255,0.7); margin-top: 10px; font-size: 1.05rem; }

/* ── SECTION TITLES ── */
.section-title {
  font-size: 2rem; font-weight: 900; color: var(--navy);
  text-align: center; margin-bottom: 12px;
}
.section-title span { color: var(--primary); }
.section-subtitle { text-align: center; color: var(--text-muted); margin-bottom: 48px; font-size: 1rem; }
.gold-line {
  width: 48px; height: 3px; background: var(--primary);
  margin: 12px auto 48px;
  border-radius: 2px;
}

/* ── BUTTONS ── */
.btn {
  display: inline-block; padding: 14px 32px;
  background: var(--primary); color: var(--white);
  font-weight: 700; font-size: 1rem;
  border-radius: var(--radius); border: none; cursor: pointer;
  transition: var(--transition); letter-spacing: 0.02em;
}
.btn:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 4px 20px rgba(245,124,0,0.3); }
.btn-outline {
  background: transparent; color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: var(--white); }
.btn-lg { padding: 18px 44px; font-size: 1.1rem; }

/* ── HERO ── */
.hero {
  min-height: auto;
  background: linear-gradient(160deg, #FFF8F0 0%, #FFEED6 50%, #FFFCF7 100%);
  display: flex; align-items: center;
  position: relative; overflow: hidden;
}
.hero-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 72px 24px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  font-size: 0.82rem; font-weight: 600;
  padding: 6px 14px; border-radius: 20px; margin-bottom: 20px;
}
.hero h1 {
  font-size: 2.8rem; font-weight: 900; line-height: 1.2;
  color: var(--navy); margin-bottom: 16px;
}
.hero h1 .highlight { color: var(--primary); }
.hero-desc { color: var(--text-muted); font-size: 1rem; margin-bottom: 32px; line-height: 1.8; }
.hero-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.hero-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.hero-stat {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
}
.hero-stat:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-strong); }
.hero-stat .number {
  font-size: 2.6rem; font-weight: 900; color: var(--primary);
  line-height: 1; display: block;
}
.hero-stat .label { color: var(--navy); font-size: 0.92rem; font-weight: 600; margin-top: 8px; }
.hero-stat .sub { color: var(--text-muted); font-size: 0.82rem; margin-top: 4px; }

/* ── TRUST BAR ── */
.trust-bar {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}
.trust-items {
  display: flex; align-items: center; justify-content: center;
  flex-wrap: wrap; gap: 28px;
}
.trust-item {
  display: flex; align-items: center; gap: 8px;
  color: var(--text-muted); font-size: 0.9rem;
}
.trust-item strong { color: var(--primary); font-size: 1.1rem; }
.trust-divider { color: var(--border); font-weight: 100; }

/* ── CARDS ── */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
  box-shadow: var(--shadow);
}
.card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-strong); }
.card-icon { font-size: 2rem; margin-bottom: 16px; }
.card h3 { color: var(--navy); font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }
.card-tag {
  display: inline-block; padding: 2px 10px;
  background: rgba(245,124,0,0.1); color: var(--primary);
  font-size: 0.78rem; border-radius: 4px; margin-bottom: 12px;
}

/* ── FEATURE CARDS (navy bg) ── */
.feature-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
}
.feature-card:hover { border-color: var(--primary-light); transform: translateY(-4px); }
.feature-card .icon { font-size: 2rem; margin-bottom: 16px; }
.feature-card h3 { color: var(--white); font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: rgba(255,255,255,0.65); font-size: 0.9rem; line-height: 1.7; }

/* ── ACHIEVEMENT CARDS ── */
.achievement-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.achievement-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 20px; text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
}
.achievement-card:hover { border-color: var(--primary); }
.achievement-card .number {
  display: block; font-size: 2.8rem; font-weight: 900;
  color: var(--primary); line-height: 1;
}
.achievement-card .label { color: var(--navy); font-weight: 600; margin-top: 10px; font-size: 0.95rem; }
.achievement-card .sub { color: var(--text-muted); font-size: 0.82rem; margin-top: 6px; }

/* ── DATA TABLE ── */
.data-table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
.data-table th {
  background: var(--navy); color: var(--white);
  padding: 14px 20px; text-align: left; font-size: 0.9rem; font-weight: 700;
}
.data-table td { padding: 14px 20px; border-top: 1px solid var(--border); color: var(--text-light); font-size: 0.9rem; }
.data-table tr:hover td { background: var(--cream-warm); }
.data-table td strong { color: var(--navy); font-weight: 700; }

/* ── HIGHLIGHT BANNER ── */
.highlight-banner {
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  border: 1px solid rgba(212,160,23,0.3);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  text-align: center;
  position: relative; overflow: hidden;
}
.highlight-banner .rank { font-size: 3.5rem; font-weight: 900; color: var(--gold); line-height: 1; }
.highlight-banner .desc { color: var(--white); font-size: 1.15rem; margin-top: 12px; }
.highlight-banner .desc strong { color: var(--gold); }
.highlight-banner .note { color: rgba(255,255,255,0.6); font-size: 0.9rem; margin-top: 8px; }

/* ── PAIN POINTS ── */
.pain-section {
  background: var(--cream-warm);
  padding: 72px 0;
}
.pain-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.pain-card {
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  background: var(--white);
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
}
.pain-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-strong); }
.pain-card .pain-icon { font-size: 2.5rem; margin-bottom: 16px; }
.pain-card .pain-label {
  display: inline-block; padding: 2px 12px;
  font-size: 0.75rem; font-weight: 700; border-radius: 4px; margin-bottom: 12px;
}
.pain-card.l1 .pain-label { background: rgba(245,124,0,0.12); color: var(--primary); }
.pain-card.l2 .pain-label { background: rgba(212,160,23,0.12); color: var(--gold); }
.pain-card.l3 .pain-label { background: rgba(26,42,58,0.1); color: var(--navy); }
.pain-card h3 { color: var(--navy); font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.pain-card p { color: var(--text-muted); font-size: 0.88rem; line-height: 1.6; }

/* ── STEPS ── */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; position: relative; }
.step { text-align: center; padding: 28px 20px; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); position: relative; transition: var(--transition); }
.step:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.step-num {
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white); font-size: 1.1rem; font-weight: 900;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.step h4 { color: var(--navy); font-weight: 700; margin-bottom: 6px; }
.step p { color: var(--text-muted); font-size: 0.85rem; }

/* ── CTA SECTION ── */
.cta-section {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  padding: 80px 0;
  text-align: center;
}
.cta-section h2 { font-size: 2.2rem; font-weight: 900; color: var(--white); margin-bottom: 12px; }
.cta-section h2 span { color: var(--primary-light); }
.cta-section p { color: rgba(255,255,255,0.6); margin-bottom: 36px; font-size: 1.05rem; }

/* ── FOOTER ── */
.footer {
  background: var(--navy-dark);
  padding: 40px 0;
  text-align: center;
}
.footer .brand { font-size: 1.3rem; font-weight: 900; color: var(--primary-light); margin-bottom: 8px; }
.footer p { color: rgba(255,255,255,0.5); font-size: 0.88rem; }
.footer a { color: var(--primary-light); }

/* ── FLOATING CTA ── */
.floating-cta {
  position: fixed; bottom: 28px; right: 24px; z-index: 50;
}
.floating-cta a {
  display: flex; align-items: center; gap: 8px;
  background: var(--primary); color: var(--white);
  font-weight: 700; font-size: 0.9rem;
  padding: 12px 20px; border-radius: 50px;
  box-shadow: 0 4px 20px rgba(245,124,0,0.3);
  transition: var(--transition);
}
.floating-cta a:hover { background: var(--primary-dark); transform: translateY(-2px); }

/* ── CONTACT ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.qr-block { text-align: center; }
.qr-block img { width: 180px; height: 180px; border-radius: var(--radius); border: 2px solid var(--border); margin: 0 auto 12px; }
.qr-block p { color: var(--text-muted); font-size: 0.9rem; }
.phone-block .phone { font-size: 2.2rem; font-weight: 900; color: var(--primary); }
.phone-block p { color: var(--text-muted); font-size: 0.9rem; margin-top: 8px; }

/* ── TIMELINE ── */
.timeline { position: relative; padding-left: 32px; }
.timeline::before { content: ''; position: absolute; left: 8px; top: 0; bottom: 0; width: 2px; background: var(--border); }
.timeline-item { position: relative; margin-bottom: 32px; }
.timeline-item::before {
  content: ''; position: absolute; left: -28px; top: 6px;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--primary); border: 2px solid var(--white);
}
.timeline-item .year { color: var(--primary); font-weight: 700; font-size: 0.85rem; margin-bottom: 4px; }
.timeline-item h4 { color: var(--navy); font-weight: 700; margin-bottom: 4px; }
.timeline-item p { color: var(--text-muted); font-size: 0.88rem; }

/* ── FAQ ── */
.faq-category { margin-bottom: 48px; }
.faq-category-title {
  font-size: 1.1rem; font-weight: 700; color: var(--navy);
  border-bottom: 2px solid var(--primary);
  padding-bottom: 10px; margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.faq-item {
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.faq-q {
  width: 100%; background: none; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0; text-align: left; color: var(--text); font-size: 0.98rem;
  font-family: var(--font); transition: var(--transition);
}
.faq-q:hover { color: var(--primary); }
.faq-q.open { color: var(--primary); font-weight: 600; }
.faq-icon { width: 20px; height: 20px; flex-shrink: 0; color: var(--primary); transition: var(--transition); }
.faq-q.open .faq-icon { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 0 18px; color: var(--text-muted); font-size: 0.92rem; line-height: 1.8; }
.faq-a.open { display: block; }

/* ── CAMPUS LIST ── */
.campus-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.campus-tag {
  background: var(--white); border: 1px solid var(--border);
  border-radius: 6px; padding: 10px 16px;
  color: var(--text-light); font-size: 0.88rem; text-align: center;
  transition: var(--transition);
}
.campus-tag:hover { border-color: var(--primary); color: var(--primary); }

/* ── EXAM TYPE TAGS ── */
.exam-types { display: flex; gap: 10px; flex-wrap: wrap; margin: 24px 0 8px; }
.exam-type {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 20px;
  font-size: 0.82rem; font-weight: 600;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--text-muted);
}
.exam-type.primary { background: var(--primary); color: var(--white); border-color: var(--primary); }
.exam-type.gold { background: var(--gold); color: var(--white); border-color: var(--gold); }
.exam-type.navy { background: var(--navy); color: var(--white); border-color: var(--navy); }

/* ── BOOK DISPLAY ── */
.book-row { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; }
.book-item { width: 180px; text-align: center; }
.book-item img { width: 180px; height: 248px; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow-strong); border: 1px solid var(--border); transition: var(--transition); }
.book-item img:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(0,0,0,0.15); }
.book-item p { margin-top: 8px; font-size: 0.82rem; color: var(--text-muted); }

/* ── COURSE CARD WITH EXAM TAG ── */
.course-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
  box-shadow: var(--shadow);
  display: flex; flex-direction: column;
  height: 100%;
}
.course-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-strong); }
.course-card .exam-badge {
  display: inline-block; padding: 3px 12px; border-radius: 4px;
  font-size: 0.78rem; font-weight: 700; margin-bottom: 12px; width: fit-content;
}
.course-card .exam-badge.blue { background: #E3F2FD; color: #1565C0; }
.course-card .exam-badge.orange { background: #FFF3E0; color: var(--primary); }
.course-card .exam-badge.green { background: #E8F5E9; color: #2E7D32; }
.course-card h3 { color: var(--navy); font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.course-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }
.course-card .info-row { color: var(--text-light); font-size: 0.88rem; margin-bottom: 4px; display: flex; align-items: center; gap: 6px; }
.course-card .btn { margin-top: auto; }
.course-card .btn-top { margin-top: 20px; width: 100%; text-align: center; display: block; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .achievement-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .hero h1 { font-size: 2rem; }
  .section-title { font-size: 1.6rem; }
  .card-grid, .card-grid-2 { grid-template-columns: 1fr; }
  .pain-grid { grid-template-columns: 1fr; }
  .campus-grid { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .nav {
    display: none; flex-direction: column;
    position: fixed; top: 64px; left: 0; right: 0; bottom: 0;
    background: var(--white); padding: 24px;
    gap: 4px; overflow-y: auto;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 16px; font-size: 1rem; }
  .menu-toggle { display: flex; }
  .highlight-banner { padding: 32px 24px; }
  .highlight-banner .rank { font-size: 2.5rem; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .achievement-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .campus-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-items { gap: 12px; flex-direction: column; align-items: center; }
  .trust-divider { display: none; }
  .hero-inner { padding: 40px 16px; }
  .hero h1 { font-size: 1.5rem; }
  .hero-desc { font-size: 0.9rem; }
  .hero-stat .number { font-size: 1.8rem; }
  .hero-stat { padding: 16px 12px; }
  .exam-type { font-size: 0.75rem; padding: 4px 10px; }
  .section { padding: 40px 0; }
  .section-title { font-size: 1.3rem; }
  .section-subtitle { font-size: 0.88rem; margin-bottom: 28px; }
  .card { padding: 24px 18px; }
  .achievement-card { padding: 20px 12px; }
  .achievement-card .number { font-size: 1.8rem; }
  .achievement-card .label { font-size: 0.82rem; }
  .cta-section { padding: 48px 0; }
  .cta-section h2 { font-size: 1.4rem; }
  .btn-lg { padding: 14px 28px; font-size: 0.95rem; }
  .page-header h1 { font-size: 1.6rem; }
  .page-header { padding: 36px 0 28px; }
  .container { padding: 0 16px; }
  .highlight-banner { padding: 24px 16px; }
  .highlight-banner .rank { font-size: 2rem; }
  .highlight-banner .desc { font-size: 0.95rem; }
  .steps { gap: 12px; }
  .step { padding: 20px 14px; }
  .campus-grid { gap: 8px; }
  .campus-tag { padding: 8px 10px; font-size: 0.82rem; }
  .pain-grid { gap: 12px; }
  .pain-card { padding: 24px 18px; }
  .book-item { width: 140px; }
  .book-item img { width: 140px; height: 194px; }
  .contact-grid { gap: 28px; }
  .phone-block .phone { font-size: 1.5rem; }
  .qr-block img { width: 140px; height: 140px; }
  .faq-q { font-size: 0.9rem; padding: 14px 0; }
  .hero-badge { font-size: 0.75rem !important; padding: 5px 12px !important; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; text-align: center; }
  .card-grid { gap: 16px; }
  .floating-cta { bottom: 16px; right: 12px; }
  .floating-cta a { padding: 10px 16px; font-size: 0.82rem; }
  .data-table th, .data-table td { padding: 10px 12px; font-size: 0.82rem; }
  .timeline { padding-left: 24px; }
  .course-card { padding: 24px 18px; }
  .course-card .exam-badge { font-size: 0.72rem; }
  .course-card h3 { font-size: 1rem; }
  .course-card .info-row { font-size: 0.82rem; }
}