/**
 * 择校平台 — 黑白渐变 · 液态玻璃（Glassmorphism）
 * 全站设计令牌与基础组件样式
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');

:root,
[data-theme="light"] {
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* 黑白主色 */
  --color-primary: #0a0a0a;
  --color-primary-hover: #262626;
  --color-primary-soft: rgba(0, 0, 0, 0.06);
  --color-secondary: #525252;
  --color-secondary-soft: rgba(0, 0, 0, 0.04);

  /* 液态背景 */
  --bg-base: #e8e8e8;
  --bg-page: #e8e8e8;
  --bg-elevated: rgba(255, 255, 255, 0.55);
  --bg-muted: rgba(255, 255, 255, 0.35);
  --bg-glass: rgba(255, 255, 255, 0.42);
  --bg-glass-strong: rgba(255, 255, 255, 0.62);
  --navbar-bg: rgba(255, 255, 255, 0.55);
  --hero-bg: rgba(255, 255, 255, 0.38);

  --text-primary: #0a0a0a;
  --text-regular: #404040;
  --text-secondary: #737373;
  --text-on-primary: #ffffff;

  --border: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.14);
  --border-glass: rgba(255, 255, 255, 0.75);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 40px rgba(0, 0, 0, 0.06);

  --blur: 20px;
  --blur-strong: 32px;

  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);

  /* 动画按钮（Uiverse 风格 · 黑白） */
  --btn-anim-ease: cubic-bezier(0.23, 1, 0.32, 1);
  --btn-anim-ring: var(--color-primary);
  --btn-anim-color: var(--color-primary);
  --btn-anim-fill: var(--color-primary);
  --btn-anim-hover-text: var(--text-on-primary);
  --btn-anim-bg: transparent;

  /* 按钮尺寸规范 */
  --btn-gap: 8px;
  --btn-h-sm: 28px;
  --btn-px-sm: 12px;
  --btn-font-sm: 12px;
  --btn-border-sm: 2px;
  --btn-icon-sm: 14px;
  --btn-h-md: 34px;
  --btn-px-md: 16px;
  --btn-font-md: 13px;
  --btn-border-md: 2px;
  --btn-icon-md: 16px;
  --btn-h-lg: 38px;
  --btn-px-lg: 20px;
  --btn-font-lg: 14px;
  --btn-border-lg: 2px;
  --btn-icon-lg: 18px;

  /* 液态光斑 */
  --orb-1: rgba(255, 255, 255, 0.9);
  --orb-2: rgba(200, 200, 200, 0.55);
  --orb-3: rgba(160, 160, 160, 0.35);

  --primary-color: var(--color-primary);
  --primary-hover: var(--color-primary-hover);
  --secondary-color: var(--color-secondary);
  --bg-color: var(--bg-page);
  --card-bg: var(--bg-glass-strong);
  --bg-card: var(--card-bg);
  --surface-muted: var(--bg-muted);
  --border-color: var(--border-strong);
  --shadow: var(--shadow-md);
  --shadow-hover: var(--shadow-lg);
  --radius: var(--radius-md);
}

[data-theme="dark"] {
  --color-primary: #fafafa;
  --color-primary-hover: #e5e5e5;
  --color-primary-soft: rgba(255, 255, 255, 0.1);
  --color-secondary: #a3a3a3;
  --color-secondary-soft: rgba(255, 255, 255, 0.06);

  --bg-base: #0a0a0a;
  --bg-page: #0a0a0a;
  --bg-elevated: rgba(255, 255, 255, 0.06);
  --bg-muted: rgba(255, 255, 255, 0.04);
  --bg-glass: rgba(255, 255, 255, 0.05);
  --bg-glass-strong: rgba(255, 255, 255, 0.09);
  --navbar-bg: rgba(20, 20, 20, 0.65);
  --hero-bg: rgba(255, 255, 255, 0.05);

  --text-primary: #fafafa;
  --text-regular: #d4d4d4;
  --text-secondary: #a3a3a3;
  --text-on-primary: #0a0a0a;

  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --border-glass: rgba(255, 255, 255, 0.12);

  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 56px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 48px rgba(255, 255, 255, 0.04);

  --orb-1: rgba(255, 255, 255, 0.07);
  --orb-2: rgba(255, 255, 255, 0.04);
  --orb-3: rgba(255, 255, 255, 0.02);

  --card-bg: var(--bg-glass-strong);
  --bg-card: var(--card-bg);
  --surface-muted: var(--bg-muted);
  --bg-color: var(--bg-page);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* 液态渐变背景层 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 60% at 15% 20%, var(--orb-1) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 85% 75%, var(--orb-2) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 50% 50%, var(--orb-3) 0%, transparent 45%),
    linear-gradient(145deg, var(--bg-base) 0%, #d4d4d4 40%, #a3a3a3 100%);
  pointer-events: none;
}

[data-theme="dark"] body::before {
  background:
    radial-gradient(ellipse 80% 60% at 15% 20%, var(--orb-1) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 85% 75%, var(--orb-2) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 50% 50%, var(--orb-3) 0%, transparent 45%),
    linear-gradient(145deg, #0a0a0a 0%, #171717 40%, #262626 100%);
}

/* 液态流动动画光斑 */
body::after {
  content: '';
  position: fixed;
  inset: -20%;
  z-index: -1;
  background:
    radial-gradient(circle at 30% 40%, var(--orb-1) 0%, transparent 35%),
    radial-gradient(circle at 70% 60%, var(--orb-2) 0%, transparent 30%);
  animation: liquid-drift 18s ease-in-out infinite alternate;
  pointer-events: none;
  opacity: 0.7;
}

@keyframes liquid-drift {
  0%   { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(3%, -2%) scale(1.04); }
  66%  { transform: translate(-2%, 3%) scale(0.97); }
  100% { transform: translate(2%, 1%) scale(1.02); }
}

/* 玻璃面板通用 */
.glass-panel {
  background: var(--bg-glass-strong);
  backdrop-filter: blur(var(--blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(160%);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

a:hover {
  color: var(--color-primary-hover);
  opacity: 0.85;
}

/* 顶栏 — 液态玻璃 */
.navbar {
  background: var(--navbar-bg) !important;
  backdrop-filter: blur(var(--blur-strong)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--blur-strong)) saturate(180%);
  border-bottom: 1px solid var(--border-glass) !important;
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  min-height: 64px;
  gap: 8px;
}

.navbar-brand {
  font-weight: 700 !important;
  font-size: 1.12rem !important;
  color: var(--text-primary) !important;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar-nav a {
  color: var(--text-regular) !important;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

.navbar-nav a:hover {
  color: var(--text-primary) !important;
  background: var(--color-primary-soft);
}

.navbar-nav a.active {
  color: var(--text-on-primary) !important;
  background: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-toggle,
.team-intro-btn {
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform var(--transition);
}

.theme-toggle:hover,
.team-intro-btn:hover {
  background: var(--bg-glass-strong);
  transform: scale(1.04);
}

/* Hero */
.search-section {
  background: transparent !important;
  padding: 40px 0 28px !important;
}

.search-section .hero-card {
  background: var(--hero-bg);
  backdrop-filter: blur(var(--blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(160%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 40px 28px;
  box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  text-align: center;
}

.search-section h1 {
  color: var(--text-primary) !important;
}

.search-section p {
  color: var(--text-regular) !important;
}

.search-box,
.search-container {
  display: flex;
  max-width: 560px;
  margin: 0 auto;
  background: var(--bg-glass-strong);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.search-box input,
.search-container input {
  flex: 1;
  padding: 14px 22px;
  border: none;
  outline: none;
  font-size: 1rem;
  background: transparent;
  color: var(--text-primary);
}

.search-box input::placeholder,
.search-container input::placeholder {
  color: var(--text-secondary);
}

.search-box button,
.search-container button {
  padding: 14px 26px;
  background: var(--color-primary);
  color: var(--text-on-primary);
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), opacity var(--transition);
}

.search-box button:hover,
.search-container button:hover {
  background: var(--color-primary-hover);
  opacity: 0.92;
}

/* 卡片 — 玻璃（翻转大学名片除外） */
.filter-panel,
.empty-state {
  background: var(--bg-glass-strong) !important;
  backdrop-filter: blur(var(--blur)) saturate(160%) !important;
  -webkit-backdrop-filter: blur(var(--blur)) saturate(160%) !important;
  border: 1px solid var(--border-glass) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.filter-panel h3 {
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
  color: var(--text-primary);
}

.card-header {
  background: var(--bg-muted) !important;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border) !important;
}

.card-header h4,
.card-header .location {
  color: var(--text-primary) !important;
}

.card-footer a,
.btn-search,
.pagination button.active,
.mobile-filter-btn {
  background: var(--color-primary) !important;
  color: var(--text-on-primary) !important;
  border-radius: var(--radius-sm) !important;
  border: none;
}

.card-footer a:hover,
.btn-search:hover {
  background: var(--color-primary-hover) !important;
}

.mobile-filter-btn {
  box-shadow: var(--shadow-md) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.card-tag.tag-primary {
  background: var(--color-primary-soft);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.card-tag.tag-success {
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-regular);
  border: 1px solid var(--border);
}

[data-theme="dark"] .card-tag.tag-success {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-regular);
}

.card-tag.tag-info {
  background: var(--color-secondary-soft);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.card-tag.tag-warn {
  background: rgba(245, 158, 11, 0.15);
  color: #b45309;
  border: 1px solid rgba(245, 158, 11, 0.35);
}

[data-theme="dark"] .card-tag.tag-warn {
  color: #fbbf24;
}

.info-item.nearby-unis .value {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-all;
}

.filter-group select,
.filter-group input[type="text"] {
  border-radius: var(--radius-sm) !important;
  border: 1px solid var(--border-glass) !important;
  background: var(--bg-glass-strong) !important;
  backdrop-filter: blur(var(--blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(160%);
  color: var(--text-primary) !important;
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  color-scheme: light dark;
}

[data-theme="light"] .filter-group select {
  color-scheme: light;
}

[data-theme="dark"] .filter-group select {
  color-scheme: dark;
}

.filter-group select option {
  background-color: #ffffff;
  color: #0a0a0a;
}

[data-theme="dark"] .filter-group select option {
  background-color: #262626;
  color: #fafafa;
}

.filter-group select option:checked,
.filter-group select option:hover {
  background-color: #404040;
  color: #ffffff;
}

[data-theme="light"] .filter-group select option:checked,
[data-theme="light"] .filter-group select option:hover {
  background-color: #e5e5e5;
  color: #0a0a0a;
}

.filter-group select:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* 详情页 / 交通页等原生表单控件 */
.advice-input,
.advice-textarea,
.transit-search-input,
input[type="text"]:not(.el-input__inner),
input[type="search"]:not(.el-input__inner),
input[type="email"]:not(.el-input__inner),
input[type="password"]:not(.el-input__inner),
input[type="number"]:not(.el-input__inner),
textarea:not(.el-textarea__inner),
select:not(.el-select__input) {
  color-scheme: light dark;
}

[data-theme="dark"] .advice-input,
[data-theme="dark"] .advice-textarea,
[data-theme="dark"] .transit-search-input,
[data-theme="dark"] input[type="text"]:not(.el-input__inner),
[data-theme="dark"] input[type="search"]:not(.el-input__inner),
[data-theme="dark"] input[type="email"]:not(.el-input__inner),
[data-theme="dark"] input[type="password"]:not(.el-input__inner),
[data-theme="dark"] input[type="number"]:not(.el-input__inner),
[data-theme="dark"] textarea:not(.el-textarea__inner),
[data-theme="dark"] select:not(.el-select__input) {
  color-scheme: dark;
}

[data-theme="dark"] select:not(.el-select__input) option {
  background-color: #262626;
  color: #fafafa;
}

.filter-group select:focus,
.filter-group input:focus {
  border-color: var(--border-strong) !important;
  outline: none;
  box-shadow: 0 0 0 3px var(--color-primary-soft), var(--shadow-sm);
}

.filter-multiselect > summary {
  background: var(--bg-glass-strong) !important;
  backdrop-filter: blur(var(--blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(160%);
  border: 1px solid var(--border-glass) !important;
  color: var(--text-primary) !important;
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.filter-multiselect-panel {
  background: var(--bg-glass-strong) !important;
  backdrop-filter: blur(var(--blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(160%);
  border: 1px dashed var(--border-glass) !important;
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.filter-multiselect-panel .checkbox-item span {
  color: var(--text-regular);
}

.site-footer {
  margin-top: 48px;
  padding: 28px 20px 40px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
  border-top: 1px solid var(--border-glass);
  background: color-mix(in srgb, var(--bg-glass) 82%, transparent);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
}

.site-footer-nav {
  margin-bottom: 0;
}

.site-footer-legal {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid color-mix(in srgb, var(--border-glass) 65%, transparent);
}

.site-footer-copy {
  font-size: 0.8125rem;
  color: var(--text-muted, var(--text-secondary));
  margin: 0 0 8px;
  line-height: 1.5;
}

.site-footer-icp {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-muted, var(--text-secondary));
  line-height: 1.5;
}

.site-footer-icp a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.site-footer-icp a:hover {
  color: var(--text-primary);
}

.site-footer--admin {
  margin-top: 0;
  padding: 14px 20px 18px;
  flex-shrink: 0;
}

body.admin-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

body.admin-page #app {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

body.admin-page .admin-layout {
  flex: 1;
  min-height: 0;
}

@media (max-width: 768px) {
  .team-intro-btn {
    display: inline-flex;
  }

  .navbar-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    padding: 8px 0 12px;
  }

  .navbar-nav.is-open {
    display: flex;
    background: var(--bg-glass-strong);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border-radius: var(--radius-md);
    margin-top: 8px;
    padding: 12px;
    border: 1px solid var(--border-glass);
  }

  .navbar-nav a {
    width: 100%;
    text-align: center;
  }
}