/* ============================================================
   睢宁县宁海高级中学官网 —— 蓝白学术风 · 水墨留白
   ============================================================ */
:root {
  --navy-950: #081F3D;
  --navy-900: #0A2A52;
  --navy-800: #0E3A6E;
  --navy-700: #123F75;
  --navy-600: #1C5599;
  --navy-500: #2A6CB8;
  --gold: #C9A45C;
  --gold-dark: #A8873F;
  --bg: #F5F8FC;
  --card: #FFFFFF;
  --text: #26354A;
  --muted: #6B7A90;
  --border: #E3EAF3;
  --danger: #C0392B;
  --ok: #1E8449;
  --shadow: 0 2px 12px rgba(10, 42, 82, 0.08);
  --font-body: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", sans-serif;
  --font-serif: "STSong", "SimSun", "Noto Serif SC", serif;
  --font-kai: "KaiTi", "STKaiti", "Kaiti SC", serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 15px;
}

a { color: var(--navy-600); text-decoration: none; }
a:hover { color: var(--navy-500); }
img { max-width: 100%; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* ---------------- 非官方提示条 ---------------- */
.unofficial-bar {
  background: #FFF8E6;
  border-bottom: 1px solid #F0DFB4;
  color: #8A6A1F;
  font-size: 12.5px;
  text-align: center;
  padding: 7px 16px;
  line-height: 1.6;
}
.unofficial-bar strong { color: #7A5A12; }
.unofficial-bar a { color: #8A6A1F; text-decoration: underline; }
.unofficial-bar a:hover { color: #6B4F0E; }

/* ---------------- 首次访问声明弹窗 ---------------- */
.disclaimer-mask {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(8, 31, 61, 0.62);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow-y: auto;
}
.disclaimer-mask[hidden] { display: none; }
.disclaimer-box {
  background: #fff;
  border-radius: 12px;
  max-width: 560px;
  width: 100%;
  padding: 28px 30px 24px;
  box-shadow: 0 12px 40px rgba(8, 31, 61, 0.3);
  border-top: 4px solid var(--gold);
  max-height: 90vh;
  overflow-y: auto;
}
.disclaimer-box h3 {
  font-size: 18px;
  color: var(--navy-800);
  margin-bottom: 16px;
  line-height: 1.5;
}
.disclaimer-body { font-size: 14px; color: var(--text); }
.disclaimer-body p {
  margin-bottom: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--border);
}
.disclaimer-body strong { color: var(--navy-700); }
.disclaimer-box .btn { margin-top: 6px; }

/* ---------------- 头部 ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(6px);
}
.header-inner { display: flex; align-items: center; gap: 18px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-logo { width: 42px; height: 42px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.3; }
.brand-name { font-family: var(--font-serif); font-size: 18px; font-weight: 700; color: var(--navy-800); letter-spacing: 1px; }
.brand-motto { font-family: var(--font-kai); font-size: 12px; color: var(--gold-dark); letter-spacing: 2px; }

.main-nav { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.main-nav a {
  padding: 6px 10px;
  font-size: 14px;
  color: var(--text);
  border-radius: 6px;
  white-space: nowrap;
}
.main-nav a:hover { color: var(--navy-600); background: var(--bg); }
.main-nav a.active { color: var(--navy-800); font-weight: 700; border-bottom: 2px solid var(--gold); border-radius: 0; }

.user-box { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.user-name { font-size: 14px; color: var(--navy-800); font-weight: 700; }
.nav-msg { position: relative; font-size: 14px; color: var(--navy-600); }
.nav-admin { font-size: 14px; color: var(--gold-dark); }
.unread-badge {
  display: inline-block;
  min-width: 18px;
  padding: 0 5px;
  margin-left: 4px;
  background: var(--danger);
  color: #fff;
  font-size: 11px;
  line-height: 18px;
  text-align: center;
  border-radius: 9px;
  vertical-align: 1px;
}
.nav-toggle {
  display: none;
  margin-left: auto;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 18px;
  cursor: pointer;
  color: var(--navy-800);
}

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-block;
  padding: 9px 22px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  line-height: 1.5;
  transition: all 0.15s;
  text-align: center;
}
.btn-primary { background: var(--navy-800); color: #fff; }
.btn-primary:hover { background: var(--navy-600); color: #fff; }
.btn-light { background: #fff; color: var(--navy-800); }
.btn-light:hover { background: #F0F4FA; color: var(--navy-800); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.7); }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.15); color: #fff; }
.btn-gold { background: var(--gold); color: var(--navy-950); font-weight: 700; }
.btn-gold:hover { background: var(--gold-dark); color: #fff; }
.btn-ghost { background: transparent; color: var(--navy-700); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--navy-500); color: var(--navy-600); }
.btn-danger { background: #fff; color: var(--danger); border-color: #F0D2CE; }
.btn-danger:hover { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-sm { padding: 5px 14px; font-size: 13px; }
.btn-xs { padding: 3px 10px; font-size: 12px; }
.btn-block { display: block; width: 100%; }
.inline-form { display: inline; }

/* ---------------- 首页 Hero ---------------- */
.hero {
  position: relative;
  color: #fff;
  text-align: center;
  padding: 110px 0 120px;
  background: linear-gradient(160deg, var(--navy-950) 0%, var(--navy-800) 60%, var(--navy-700) 100%);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/img/hero.svg') center bottom / cover no-repeat;
  opacity: 0.55;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 31, 61, 0.55), rgba(8, 31, 61, 0.15));
}
.hero-content { position: relative; z-index: 2; }
.hero-school {
  font-family: var(--font-serif);
  font-size: 30px;
  letter-spacing: 8px;
  color: #EAF2FB;
  margin-bottom: 22px;
}
.hero-motto {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  font-family: var(--font-kai);
  font-size: 52px;
  font-weight: 400;
  letter-spacing: 12px;
  margin-bottom: 22px;
}
.hero-motto i { width: 1px; height: 52px; background: var(--gold); display: inline-block; }
.hero-badge {
  display: inline-block;
  border: 1px solid var(--gold);
  color: var(--gold);
  padding: 5px 18px;
  font-size: 14px;
  letter-spacing: 4px;
  border-radius: 2px;
  margin-bottom: 34px;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; margin-bottom: 44px; }
.hero-stats { display: flex; gap: 44px; justify-content: center; font-size: 13px; color: #B9CBE2; }
.hero-stats b { color: #fff; font-size: 18px; margin-left: 4px; }

/* ---------------- 页面内页 Hero ---------------- */
.page-hero {
  background: linear-gradient(150deg, var(--navy-900), var(--navy-700));
  color: #fff;
  text-align: center;
  padding: 56px 0 60px;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.page-hero h1 { font-family: var(--font-serif); font-size: 32px; letter-spacing: 6px; margin-bottom: 8px; }
.page-hero p { color: #C6D6EA; font-size: 14px; letter-spacing: 2px; }
.forum-hero .hero-stats { margin-top: 18px; }

/* ---------------- 通用区块 ---------------- */
.section { padding: 64px 0; }
.section-alt { background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 26px; }
.section-head h2 { font-size: 22px; color: var(--navy-800); padding-left: 12px; border-left: 4px solid var(--gold); }
.more-link { font-size: 14px; color: var(--muted); }
.more-link:hover { color: var(--navy-500); }
.page-body { padding: 36px 20px 64px; }
.intro-text { max-width: 860px; font-size: 15px; color: var(--text); }
.article p { margin-bottom: 14px; }
.article-card { padding: 36px; }
.article-title { font-size: 24px; color: var(--navy-900); margin: 14px 0 10px; }
.article-meta { margin-bottom: 22px; }
.article-content { border-top: 1px solid var(--border); padding-top: 22px; }
.back-link { margin-top: 24px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 26px; box-shadow: var(--shadow); margin-bottom: 22px; }
.card-title { font-size: 18px; color: var(--navy-800); margin-bottom: 14px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.empty-state { text-align: center; color: var(--muted); padding: 34px 0; }
.center-cta { text-align: center; padding: 30px 0 10px; }
.center-cta p { margin-bottom: 16px; color: var(--muted); }

/* ---------------- 徽章 ---------------- */
.badge {
  display: inline-block;
  padding: 1px 9px;
  font-size: 12px;
  border-radius: 3px;
  white-space: nowrap;
}
.badge-gold { background: #FBF3E2; color: var(--gold-dark); border: 1px solid #EAD9B4; }
.badge-blue { background: #E8F0FA; color: var(--navy-600); border: 1px solid #C9DBF0; }
.badge-essence { background: #FDEDE3; color: #B05B28; border: 1px solid #F2CFB8; }
.badge-admin { background: var(--navy-800); color: #fff; }
.badge-gray { background: #EEF1F5; color: var(--muted); border: 1px solid var(--border); }

/* ---------------- 特性卡片 ---------------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 30px 26px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}
.feature-card:hover { transform: translateY(-3px); }
.feature-icon { font-size: 34px; margin-bottom: 12px; }
.feature-card h3 { font-size: 17px; color: var(--navy-800); margin-bottom: 8px; }
.feature-card p { font-size: 13px; color: var(--muted); }

/* ---------------- 校训 ---------------- */
.motto-section { background: #fff; border-bottom: 1px solid var(--border); }
.motto-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.motto-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 40px 34px;
  text-align: center;
  background: linear-gradient(180deg, #FDFEFE, #F5F8FC);
}
.motto-card h2 {
  font-family: var(--font-kai);
  font-size: 40px;
  color: var(--navy-800);
  letter-spacing: 10px;
  margin-bottom: 6px;
}
.motto-source { color: var(--gold-dark); font-size: 13px; margin-bottom: 16px; }
.motto-card p:last-child { color: var(--muted); font-size: 14px; }

/* 校风·教风·学风 */
.motto-extras {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 28px;
}
.motto-extra {
  background: #fff;
  border: 1px solid var(--border);
  border-left: 4px solid var(--gold);
  border-radius: 8px;
  padding: 20px 18px;
  text-align: center;
  box-shadow: var(--shadow);
}
.motto-extra span {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
  letter-spacing: 6px;
}
.motto-extra b {
  display: block;
  font-size: 20px;
  color: var(--navy-800);
  font-family: var(--font-kai);
  letter-spacing: 4px;
}

/* 录取分数线 */
.score-table { margin-top: 4px; }
.score-table .table { max-width: 480px; }
.score-table b { color: var(--navy-800); font-size: 16px; }
.score-note { font-size: 12px; color: var(--muted); margin-top: 10px; }

/* ---------------- 新闻 ---------------- */
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.news-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}
.news-card:hover { transform: translateY(-2px); border-color: #C9DBF0; }
.news-card h3 { font-size: 15px; color: var(--text); font-weight: 600; }
.news-date { font-size: 12px; color: var(--muted); }
.filter-tabs { display: flex; gap: 10px; margin-bottom: 22px; }
.filter-tabs a {
  padding: 6px 20px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: #fff;
  font-size: 14px;
  color: var(--text);
}
.filter-tabs a.current { background: var(--navy-800); border-color: var(--navy-800); color: #fff; }
.news-list { background: var(--card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; box-shadow: var(--shadow); }
.news-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
}
.news-row:last-child { border-bottom: none; }
.news-row:hover { background: var(--bg); }
.news-row .post-title { flex: 1; }
.news-row .news-date { flex-shrink: 0; }

/* ---------------- 论坛列表 ---------------- */
.forum-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 22px; flex-wrap: wrap; }
.forum-note { color: var(--muted); font-size: 13px; }
.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.breadcrumb a { color: var(--navy-600); }
.category-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.category-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}
.category-card:hover { transform: translateY(-2px); border-color: #C9DBF0; }
.category-icon { font-size: 34px; }
.category-info { flex: 1; }
.category-info h3 { font-size: 17px; color: var(--navy-800); margin-bottom: 4px; }
.category-info p { font-size: 12px; color: var(--muted); }
.category-stats { display: flex; flex-direction: column; gap: 2px; font-size: 12px; color: var(--muted); white-space: nowrap; }

.post-list { background: var(--card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; box-shadow: var(--shadow); }
.post-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 22px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
a.post-row:hover { background: var(--bg); color: var(--text); }
.post-row:last-child { border-bottom: none; }
.post-main { flex: 1; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.post-title { font-size: 15px; font-weight: 600; color: var(--navy-900); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.post-cat {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--navy-600);
  background: #E8F0FA;
  padding: 2px 10px;
  border-radius: 3px;
  white-space: nowrap;
}
.post-meta { font-size: 12px; color: var(--muted); }
.post-replies { flex-shrink: 0; font-size: 12px; color: var(--muted); white-space: nowrap; }
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 24px; }
.pagination a {
  min-width: 34px;
  text-align: center;
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  font-size: 13px;
  color: var(--text);
}
.pagination a.current { background: var(--navy-800); border-color: var(--navy-800); color: #fff; }

/* ---------------- 帖子详情 ---------------- */
.post-detail-head h1 { font-size: 22px; color: var(--navy-900); margin-bottom: 12px; }
.post-detail-head .post-meta { display: flex; gap: 16px; flex-wrap: wrap; }
.post-content { margin: 20px 0; padding: 18px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); word-break: break-word; }
.post-image { margin-bottom: 18px; }
.post-image img { border-radius: 8px; max-height: 480px; }
.action-bar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.action-btn {
  background: #F5F8FC;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 16px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
  display: inline-block;
}
.action-btn:hover { border-color: var(--navy-500); color: var(--navy-600); }
.action-btn.active { background: #E8F0FA; border-color: var(--navy-500); color: var(--navy-700); }
.action-btn.static { cursor: default; }
.action-btn.static:hover { border-color: var(--border); color: var(--text); }
.admin-actions { display: flex; gap: 8px; margin-left: auto; }

.replies .section-head { margin-top: 10px; }
.reply { padding: 18px 22px; }
.reply-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.reply-floor { color: var(--muted); font-size: 12px; }
.reply-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.reply-content { word-break: break-word; }
.reply-form textarea, .conv-form textarea { width: 100%; margin-bottom: 12px; }
.login-hint { color: var(--muted); font-size: 14px; }

/* ---------------- 表单 ---------------- */
.auth-wrap { display: flex; justify-content: center; padding: 56px 20px 80px; }
.form-card { width: 100%; max-width: 440px; padding: 36px; }
.form-card.wide { max-width: 640px; }
.form-card h1 { font-size: 24px; color: var(--navy-800); text-align: center; margin-bottom: 6px; }
.form-sub { text-align: center; color: var(--muted); font-size: 13px; margin-bottom: 20px; }
.form-hint { font-size: 12px; color: var(--muted); margin-bottom: 14px; }
.field { display: block; margin-bottom: 16px; }
.field span { display: block; font-size: 13px; color: var(--text); margin-bottom: 6px; }
.field input, .field select, .field textarea,
input[type="text"], input[type="password"], input[type="number"], select, textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: #fff;
}
.field input:focus, .field select:focus, .field textarea:focus,
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--navy-500);
  box-shadow: 0 0 0 3px rgba(42, 108, 184, 0.12);
}
textarea { resize: vertical; }
.auth-alt { text-align: center; margin-top: 16px; font-size: 13px; color: var(--muted); }
.auth-note { text-align: center; margin-top: 14px; font-size: 12px; color: var(--muted); }
.notice { padding: 10px 14px; border-radius: 6px; font-size: 13px; margin-bottom: 16px; }
.notice-ok { background: #EAF7EE; border: 1px solid #BFE3CB; color: var(--ok); }
.notice-err { background: #FDEDEB; border: 1px solid #F0C9C2; color: var(--danger); }

/* ---------------- 师资 ---------------- */
.teacher-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.teacher-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 26px 20px;
  text-align: center;
  box-shadow: var(--shadow);
}
.teacher-avatar {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  margin: 0 auto 12px;
  color: #fff;
  font-size: 26px;
  line-height: 62px;
  font-family: var(--font-kai);
}
.teacher-card h3 { font-size: 16px; color: var(--navy-800); margin-bottom: 4px; }
.teacher-subject { font-size: 12px; color: var(--gold-dark); margin-bottom: 10px; }
.teacher-intro { font-size: 12px; color: var(--muted); }

/* ---------------- 校园生活 ---------------- */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 30px; }
.gallery-tile {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 26px 18px;
  text-align: center;
  box-shadow: var(--shadow);
}
.gallery-tile svg { width: 90px; height: 72px; margin-bottom: 10px; }
.gallery-label { display: block; font-size: 13px; color: var(--navy-700); }

/* ---------------- 联系 ---------------- */
.contact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.contact-card { text-align: center; margin-bottom: 0; }
.contact-card h3 { font-size: 15px; color: var(--navy-800); margin-bottom: 6px; }
.contact-card p { font-size: 13px; color: var(--muted); }
.map-placeholder {
  margin-top: 22px;
  border: 1px dashed #B9CBE2;
  border-radius: 10px;
  background: repeating-linear-gradient(45deg, #F5F8FC, #F5F8FC 12px, #EEF3F9 12px, #EEF3F9 24px);
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 13px;
}

/* ---------------- 历史沿革 ---------------- */
.timeline { position: relative; padding-left: 26px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), var(--navy-500));
}
.timeline-item { position: relative; padding: 0 0 22px 20px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -23px;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--navy-600);
}
.timeline-year { display: inline-block; font-weight: 700; color: var(--navy-800); margin-bottom: 2px; }
.timeline-item p { color: var(--muted); font-size: 14px; }

/* ---------------- 荣誉墙 ---------------- */
.honor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.honor-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  box-shadow: var(--shadow);
}
.honor-icon { font-size: 26px; display: block; margin-bottom: 6px; }
.honor-card p { font-size: 14px; color: var(--navy-800); font-weight: 600; }

/* ---------------- 常见问题 ---------------- */
.faq details { border-bottom: 1px solid var(--border); padding: 12px 0; }
.faq details:last-child { border-bottom: none; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--navy-800); font-size: 14px; }
.faq details p { margin-top: 8px; font-size: 13px; color: var(--muted); }

/* ---------------- 私信 ---------------- */
.msg-list { display: flex; flex-direction: column; }
.msg-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 6px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.msg-row:last-child { border-bottom: none; }
.msg-row:hover { background: var(--bg); }
.msg-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--navy-700);
  color: #fff;
  text-align: center;
  line-height: 42px;
  font-family: var(--font-kai);
  flex-shrink: 0;
}
.msg-body { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.msg-name { font-weight: 600; color: var(--navy-800); font-size: 14px; }
.msg-preview { font-size: 12px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msg-time { flex-shrink: 0; font-size: 11px; color: var(--muted); }
.unread-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-left: 6px;
  background: var(--danger);
  border-radius: 50%;
}
.conv-card { max-width: 720px; margin: 0 auto; }
.conv-head { display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--border); padding-bottom: 16px; margin-bottom: 16px; }
.conv { display: flex; flex-direction: column; gap: 14px; max-height: 420px; overflow-y: auto; padding: 4px; }
.conv-msg { display: flex; flex-direction: column; max-width: 75%; }
.conv-msg.mine { align-self: flex-end; align-items: flex-end; }
.conv-msg.theirs { align-self: flex-start; align-items: flex-start; }
.bubble {
  padding: 10px 16px;
  border-radius: 12px;
  font-size: 14px;
  word-break: break-word;
  background: var(--bg);
  border: 1px solid var(--border);
}
.conv-msg.mine .bubble { background: var(--navy-800); border-color: var(--navy-800); color: #fff; }
.conv-time { font-size: 11px; color: var(--muted); margin-top: 4px; }
.conv-form { margin-top: 18px; border-top: 1px solid var(--border); padding-top: 16px; }

/* ---------------- 个人中心 ---------------- */
.me-grid { display: grid; grid-template-columns: 280px 1fr; gap: 22px; align-items: start; }
.profile-card { text-align: center; }
.profile-avatar { margin-bottom: 10px; }
.profile-card h2 { font-size: 20px; color: var(--navy-800); }
.me-stats { display: flex; justify-content: center; gap: 20px; margin: 14px 0; font-size: 12px; color: var(--muted); }
.me-stats b { display: block; font-size: 18px; color: var(--navy-800); }
.me-links { font-size: 13px; }

/* ---------------- CTA 横幅 ---------------- */
.cta-band { background: linear-gradient(120deg, var(--navy-900), var(--navy-700)); color: #fff; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 44px 20px; flex-wrap: wrap; }
.cta-inner h2 { font-family: var(--font-serif); font-size: 24px; letter-spacing: 2px; margin-bottom: 6px; }
.cta-inner p { color: #C6D6EA; font-size: 13px; }

/* ---------------- 404 ---------------- */
.notfound { text-align: center; padding: 80px 0; }
.notfound h1 { font-size: 84px; color: var(--navy-800); font-family: var(--font-serif); }
.notfound p { color: var(--muted); margin: 10px 0 26px; }

/* ---------------- 页脚 ---------------- */
.site-footer { background: var(--navy-950); color: #C6D6EA; margin-top: 0; }
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 40px 20px;
  flex-wrap: wrap;
}
.footer-name { font-family: var(--font-serif); font-size: 17px; color: #fff; letter-spacing: 2px; margin-bottom: 4px; }
.footer-motto { font-family: var(--font-kai); font-size: 13px; color: var(--gold); letter-spacing: 3px; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { color: #C6D6EA; font-size: 13px; }
.footer-links a:hover { color: #fff; }
.footer-contact { font-size: 12px; color: #8FA6C4; line-height: 2; }
.footer-copy { text-align: center; font-size: 12px; color: #5F7494; border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 16px; }

/* ---------------- 管理后台 ---------------- */
.admin-body { background: #EDF1F7; }
.admin-layout { display: flex; min-height: 100vh; }
.admin-side {
  width: 220px;
  flex-shrink: 0;
  background: linear-gradient(180deg, var(--navy-900), var(--navy-950));
  color: #fff;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}
.admin-brand { display: flex; align-items: center; gap: 10px; padding: 20px 18px; color: #fff; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.admin-brand span { font-family: var(--font-serif); font-size: 16px; letter-spacing: 2px; }
.admin-nav { flex: 1; padding: 14px 10px; display: flex; flex-direction: column; gap: 2px; overflow-y: auto; }
.admin-nav a {
  color: #C6D6EA;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 14px;
}
.admin-nav a:hover { background: rgba(255, 255, 255, 0.08); color: #fff; }
.admin-nav a.active { background: var(--navy-700); color: #fff; }
.admin-side-foot { padding: 14px 18px; border-top: 1px solid rgba(255, 255, 255, 0.1); display: flex; flex-direction: column; gap: 8px; }
.admin-side-foot a { color: #C6D6EA; font-size: 13px; }
.admin-side-foot .btn-ghost { color: #C6D6EA; border-color: rgba(255, 255, 255, 0.25); }
.admin-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.admin-topbar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 16px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.admin-topbar h1 { font-size: 19px; color: var(--navy-800); }
.admin-content { padding: 24px 26px 60px; max-width: 1080px; width: 100%; }
.stat-cards { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; margin-bottom: 22px; }
.stat-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 14px;
  text-align: center;
  box-shadow: var(--shadow);
}
.stat-card.warn { border-color: #F0C9C2; background: #FFF9F7; }
.stat-card b { display: block; font-size: 26px; color: var(--navy-800); }
.stat-card.warn b { color: var(--danger); }
.stat-card span { font-size: 12px; color: var(--muted); }
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th, .table td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.table th { background: var(--bg); color: var(--muted); font-weight: 600; white-space: nowrap; }
.table tr:hover td { background: #FAFCFE; }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; white-space: nowrap; }
.row-banned td { opacity: 0.6; }
.form-row { display: flex; gap: 10px; flex-wrap: wrap; }
.form-row input { flex: 1; min-width: 120px; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1024px) {
  .teacher-grid { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-cards { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .header-inner { flex-wrap: wrap; height: auto; padding: 10px 0; }
  .main-nav {
    display: none;
    order: 3;
    width: 100%;
    flex-direction: column;
    gap: 2px;
    background: #fff;
    border-top: 1px solid var(--border);
    padding: 8px 0;
    margin-left: 0;
  }
  .main-nav.open { display: flex; }
  .main-nav a.active { border-bottom: none; border-left: 3px solid var(--gold); }
  .nav-toggle { display: block; }
  .user-box { margin-left: auto; }
  .nav-toggle { margin-left: 0; }
  .hero-motto { font-size: 38px; letter-spacing: 8px; gap: 16px; }
  .hero-motto i { height: 40px; }
  .hero-school { font-size: 22px; letter-spacing: 5px; }
  .feature-grid, .motto-grid, .news-grid, .category-grid, .two-col, .gallery-grid { grid-template-columns: 1fr; }
  .me-grid { grid-template-columns: 1fr; }
  .admin-layout { flex-direction: column; }
  .admin-side { width: 100%; height: auto; position: static; }
  .admin-nav { flex-direction: row; flex-wrap: wrap; }
}

@media (max-width: 600px) {
  .hero { padding: 70px 0 80px; }
  .hero-motto { font-size: 30px; letter-spacing: 5px; }
  .hero-stats { gap: 22px; }
  .brand-name { font-size: 15px; }
  .brand-motto { display: none; }
  .section { padding: 44px 0; }
  .teacher-grid { grid-template-columns: repeat(2, 1fr); }
  .news-row { flex-wrap: wrap; }
  .news-row .news-date { width: 100%; }
  .post-row { flex-wrap: wrap; }
  .post-title { white-space: normal; }
  .action-bar .admin-actions { margin-left: 0; width: 100%; }
  .stat-cards { grid-template-columns: repeat(2, 1fr); }
  .admin-content { padding: 16px; }
  .form-card { padding: 26px 20px; }
  .hero-badge { letter-spacing: 2px; }
  .cta-inner { justify-content: center; text-align: center; }
}