/* ============================================================
   广州中学生网 gzzxs.cn — 主样式表
   ============================================================ */

/* --- CSS Variables --- */
:root {
  --primary: #4f46e5;
  --primary-light: #818cf8;
  --primary-dark: #3730a3;
  --secondary: #f43f5e;
  --accent: #06b6d4;
  --bg: #f8fafc;
  --bg-card: #ffffff;
  --text: #1e293b;
  --text-light: #64748b;
  --text-lighter: #94a3b8;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; font-family: inherit; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(255,255,255,0.95);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--primary);
}

.logo-icon { font-size: 1.5rem; }

.logo-domain {
  font-size: 0.75rem;
  color: var(--text-lighter);
  background: var(--border);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 500;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-light);
  transition: var(--transition);
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
  background: rgba(79,70,229,0.08);
}

/* Hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: 4px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 30%, #4f46e5 60%, #6366f1 100%);
  overflow: hidden;
  margin-top: 64px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='30' cy='30' r='1.5' fill='rgba(255,255,255,0.15)'/%3E%3C/svg%3E");
  opacity: 0.6;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -50px;
  left: -50px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(244,63,94,0.15);
  filter: blur(60px);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: white;
  padding: 80px 0;
}

.hero-sub {
  display: block;
  font-size: 1.1rem;
  font-weight: 400;
  opacity: 0.85;
  margin-bottom: 12px;
  letter-spacing: 0.1em;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #fff, #c7d2fe);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.15rem;
  opacity: 0.85;
  max-width: 600px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-num {
  font-size: 2rem;
  font-weight: 800;
}

.stat-label {
  font-size: 0.85rem;
  opacity: 0.7;
  margin-top: 4px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid transparent;
}

.btn-primary {
  background: white;
  color: var(--primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,255,255,0.3);
}

.btn-secondary {
  background: rgba(255,255,255,0.15);
  color: white;
  border-color: rgba(255,255,255,0.3);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.25);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: white;
  border-color: rgba(255,255,255,0.4);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: white;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 6px 16px;
  font-size: 0.85rem;
  background: var(--primary);
  color: white;
  border-radius: var(--radius-sm);
}

.btn-sm:hover { background: var(--primary-dark); }

.btn-full {
  width: 100%;
  margin-top: 12px;
}

/* --- Section Titles --- */
.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 56px 0 12px;
  text-align: center;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 36px;
  font-size: 1.05rem;
}

/* --- Page Section Visibility --- */
.page-section {
  display: none;
  padding-bottom: 60px;
}

.page-section.active {
  display: block;
}

/* --- Cards Grid (Home) --- */
.section-cards {
  padding: 60px 24px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.nav-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border);
  display: block;
}

.nav-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.card-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 16px;
}

.nav-card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: var(--text);
}

.nav-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* --- News Section --- */
.news-section {
  padding: 0 24px 60px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.news-item {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.news-item:hover {
  box-shadow: var(--shadow);
  border-color: var(--primary-light);
}

.news-tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}

.tag-zk { background: #fef3c7; color: #92400e; }
.tag-gk { background: #dbeafe; color: #1e40af; }
.tag-school { background: #fce7f3; color: #9d174d; }
.tag-study { background: #d1fae5; color: #065f46; }

.news-item h4 {
  font-size: 1rem;
  margin-bottom: 8px;
  line-height: 1.5;
}

.news-item p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 10px;
}

.news-item time {
  font-size: 0.8rem;
  color: var(--text-lighter);
}

/* --- Page Banner --- */
.page-banner {
  margin-top: 64px;
  padding: 56px 0;
  color: white;
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='20' cy='20' r='1' fill='rgba(255,255,255,0.1)'/%3E%3C/svg%3E");
}

.page-banner h1 {
  font-size: 2rem;
  font-weight: 700;
  position: relative;
}

.page-banner p {
  font-size: 1rem;
  opacity: 0.85;
  margin-top: 8px;
  position: relative;
}

.junior-bg { background: linear-gradient(135deg, #667eea, #764ba2); }
.senior-bg { background: linear-gradient(135deg, #f093fb, #f5576c); }
.college-bg { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.exam-bg { background: linear-gradient(135deg, #fa709a, #fee140); }
.study-bg { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.life-bg { background: linear-gradient(135deg, #a18cd1, #fbc2eb); }
.community-bg { background: linear-gradient(135deg, #ffecd2, #fcb69f); }

/* --- Filter Bar --- */
.filter-bar {
  display: flex;
  gap: 12px;
  margin: 24px 0;
  flex-wrap: wrap;
}

.search-input {
  flex: 1;
  min-width: 200px;
  padding: 12px 20px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
  background: var(--bg-card);
}

.search-input:focus { border-color: var(--primary); }

.filter-select {
  padding: 12px 20px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  background: var(--bg-card);
  outline: none;
  cursor: pointer;
  min-width: 120px;
}

/* --- Schools Grid --- */
.schools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.school-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.school-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.school-card-img {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
}

.school-card-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(255,255,255,0.95);
  color: var(--text);
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.school-card-body {
  padding: 20px;
}

.school-card-body h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.school-card-meta {
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 10px;
}

.school-card-body p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.6;
}

.school-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.school-tag {
  font-size: 0.7rem;
  padding: 2px 8px;
  background: var(--bg);
  border-radius: 20px;
  color: var(--text-light);
}

.no-results {
  text-align: center;
  padding: 48px;
  color: var(--text-lighter);
  font-size: 1.1rem;
  grid-column: 1 / -1;
}

/* --- Tabs --- */
.tabs {
  display: flex;
  gap: 0;
  margin: 32px 0 0;
  border-bottom: 2px solid var(--border);
}

.tab-btn {
  padding: 14px 32px;
  background: none;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-light);
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
}

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-btn:hover { color: var(--primary); }

.tab-content { display: none; }
.tab-content.active { display: block; padding-top: 32px; }

/* --- Exam Topics --- */
.exam-topics {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.topic-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
}

.topic-icon { font-size: 2rem; display: block; margin-bottom: 12px; }

.topic-card h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.topic-card ul li {
  padding: 6px 0;
  border-bottom: 1px solid var(--bg);
}

.topic-card ul li:last-child { border-bottom: none; }

.topic-card ul li a {
  color: var(--text-light);
  font-size: 0.9rem;
  transition: var(--transition);
}

.topic-card ul li a:hover { color: var(--primary); }

/* --- Study Grid --- */
.study-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.study-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.study-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.study-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.study-card h3 { font-size: 1.1rem; margin-bottom: 8px; }

.study-card p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 16px;
  flex: 1;
}

/* --- Resource Grid --- */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.resource-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
}

.resource-card:hover { box-shadow: var(--shadow); }

.resource-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  background: #d1fae5;
  color: #065f46;
}

.resource-badge.hot { background: #fee2e2; color: #991b1b; }

.resource-card h4 {
  font-size: 1rem;
  margin-bottom: 8px;
  padding-right: 48px;
}

.resource-card p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 16px;
}

.resource-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-lighter);
}

/* --- Life Grid --- */
.life-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 20px;
  margin-top: 32px;
}

.life-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.life-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }

.life-card.large {
  grid-column: 1;
  grid-row: 1 / 3;
}

.life-img-placeholder {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

.life-card.large .life-img-placeholder {
  height: 200px;
  font-size: 4rem;
}

.life-card-body { padding: 20px; }

.life-tag {
  font-size: 0.7rem;
  padding: 2px 10px;
  background: var(--bg);
  border-radius: 20px;
  color: var(--text-light);
  margin-bottom: 8px;
  display: inline-block;
}

.life-card-body h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.life-card-body p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 12px;
}

.read-more {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
}

.read-more:hover { text-decoration: underline; }

/* --- Fun Grid --- */
.fun-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.fun-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.fun-card:hover { box-shadow: var(--shadow); }

.fun-emoji { font-size: 2.5rem; margin-bottom: 12px; }

.fun-card h4 { font-size: 1.05rem; margin-bottom: 8px; }

.fun-card p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 16px;
}

.fun-meta {
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-lighter);
}

/* --- Community Layout --- */
.community-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 28px;
  margin-top: 32px;
}

.community-main { min-width: 0; }

.community-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.community-header h2 { font-size: 1.3rem; }

.post-list { display: flex; flex-direction: column; gap: 16px; }

.post-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
  display: flex;
  gap: 16px;
  transition: var(--transition);
}

.post-card:hover { box-shadow: var(--shadow); }

.post-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}

.post-content { flex: 1; min-width: 0; }

.post-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.post-author { font-weight: 600; font-size: 0.95rem; }

.post-badge {
  font-size: 0.7rem;
  padding: 1px 8px;
  background: #ede9fe;
  color: #7c3aed;
  border-radius: 20px;
}

.post-time {
  font-size: 0.8rem;
  color: var(--text-lighter);
  margin-left: auto;
}

.post-content h4 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.post-content > p {
  font-size: 0.88rem;
  color: var(--text-light);
  margin-bottom: 10px;
}

.post-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.post-tags .tag {
  font-size: 0.75rem;
  color: var(--primary);
}

.post-actions {
  display: flex;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--text-light);
}

.post-actions span { cursor: pointer; transition: var(--transition); }
.post-actions span:hover { color: var(--secondary); }

/* Sidebar */
.community-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sidebar-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
}

.sidebar-card h3 {
  font-size: 1rem;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.hot-topics { display: flex; flex-direction: column; gap: 8px; }

.hot-topic {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-light);
  padding: 4px 0;
  transition: var(--transition);
}

.hot-topic:hover { color: var(--primary); }

.hot-topic span {
  width: 20px;
  height: 20px;
  background: var(--bg);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-lighter);
}

.hot-topic:nth-child(-n+3) span {
  background: #fee2e2;
  color: #dc2626;
}

.active-users { display: flex; flex-direction: column; gap: 12px; }

.user-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.9rem;
}

.user-info strong { font-size: 0.9rem; display: block; }
.user-info span { font-size: 0.75rem; color: var(--text-lighter); }

/* --- Modal --- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.modal-overlay.active { display: flex; }

.modal {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 520px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 { font-size: 1.1rem; }

.modal-close {
  background: none;
  font-size: 1.3rem;
  color: var(--text-light);
}

.modal-close:hover { color: var(--text); }

.modal-body { padding: 24px; display: flex; flex-direction: column; gap: 14px; }

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
  resize: vertical;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--primary);
}

.form-row {
  display: flex;
  gap: 12px;
}

.form-row .form-input { flex: 1; }
.form-row .form-select { width: 120px; flex-shrink: 0; }

/* --- Footer --- */
.footer {
  background: #1e293b;
  color: #cbd5e1;
  padding: 56px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-col h4 {
  color: white;
  font-size: 1rem;
  margin-bottom: 16px;
}

.footer-col p { font-size: 0.85rem; line-height: 1.7; }

.footer-domain {
  color: #818cf8;
  font-weight: 600;
  margin-top: 8px;
}

.footer-col a {
  display: block;
  font-size: 0.85rem;
  padding: 4px 0;
  color: #94a3b8;
  transition: var(--transition);
}

.footer-col a:hover { color: white; }

.footer-bottom {
  border-top: 1px solid #334155;
  padding: 20px 0;
  text-align: center;
  font-size: 0.85rem;
  color: #64748b;
}

/* --- Animations --- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.6s ease forwards;
  animation-delay: var(--delay, 0s);
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .life-grid { grid-template-columns: 1fr 1fr; }
  .life-card.large { grid-column: 1 / -1; grid-row: auto; }
  .community-layout { grid-template-columns: 1fr; }
  .community-sidebar { order: -1; }
  .footer-inner { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .menu-toggle { display: flex; }

  .nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: white;
    padding: 16px;
    box-shadow: var(--shadow-lg);
    gap: 4px;
  }

  .nav.open { display: flex; }

  .hero-title { font-size: 2.2rem; }
  .hero-stats { gap: 24px; display: none; }
  .hero { min-height: auto; }
  .hero-content { padding: 60px 0 40px; }

  .cards-grid { grid-template-columns: 1fr; }
  .schools-grid { grid-template-columns: 1fr; }
  .exam-topics { grid-template-columns: 1fr 1fr; }
  .study-grid { grid-template-columns: 1fr 1fr; }
  .resource-grid { grid-template-columns: 1fr; }
  .life-grid { grid-template-columns: 1fr; }
  .fun-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }

  .section-title { font-size: 1.4rem; }
  .page-banner h1 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
  .exam-topics { grid-template-columns: 1fr; }
  .study-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 1.8rem; }
  .hero-actions { flex-direction: column; }
}