/* ============================================
   知乎教育 - 成人学历提升教育网站 主样式表
   配色：主色 #1a73e8 / 辅色 #e67e22 / 绿色 #16a34a
   字体：PingFang SC / Microsoft YaHei / sans-serif
   响应式：mobile-first
   ============================================ */

/* --- CSS 变量 --- */
:root {
  /* 颜色 */
  --color-primary: #1a73e8;
  --color-primary-dark: #1557b0;
  --color-primary-light: #4a90d9;
  --color-primary-bg: #e8f0fe;
  --color-secondary: #e67e22;
  --color-secondary-dark: #cf711a;
  --color-secondary-light: #f39c12;
  --color-secondary-bg: #fef3e2;
  --color-green: #16a34a;
  --color-green-dark: #15803d;
  --color-green-light: #22c55e;
  --color-green-bg: #dcfce7;
  --color-red: #dc2626;
  --color-red-dark: #b91c1c;
  --color-red-bg: #fee2e2;
  
  /* 灰色系 */
  --color-white: #ffffff;
  --color-gray-50: #f8f9fa;
  --color-gray-100: #f0f2f5;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  --color-black: #000000;

  /* 字体 */
  --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-md: 18px;
  --font-size-lg: 20px;
  --font-size-xl: 24px;
  --font-size-2xl: 30px;
  --font-size-3xl: 36px;
  --font-size-4xl: 42px;

  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 80px;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --shadow-xl: 0 12px 36px rgba(0,0,0,0.15);
  --shadow-primary: 0 4px 16px rgba(26,115,232,0.3);
  --shadow-secondary: 0 4px 16px rgba(230,126,34,0.3);

  /* 过渡 */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* 容器宽度 */
  --container-max: 1200px;
  --container-narrow: 960px;

  /* 导航栏高度 */
  --header-height: 70px;
}

/* --- 基础重置 --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  overflow-x: hidden;
  padding-top: 68px; /* 仅导航栏高度 */
}

body.admin-body {
  padding-top: 0 !important;
}

body.has-countdown-banner {
  padding-top: calc(68px + 44px);
}

body.admin-body.has-countdown-banner {
  padding-top: 0 !important;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-gray-900);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-md); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-600);
}

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

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

/* --- 通用布局 --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-bg-gray {
  background-color: var(--color-gray-50);
}

.section-bg-dark {
  background-color: var(--color-gray-800);
  color: var(--color-white);
}

.section-bg-dark h2,
.section-bg-dark h3,
.section-bg-dark p {
  color: var(--color-white);
}

.section-bg-yellow {
  background: linear-gradient(135deg, #fef9c3, #fef08a);
}

.section-bg-green {
  background: linear-gradient(135deg, #dcfce7, #bbf7d0);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  margin: var(--spacing-sm) auto 0;
  border-radius: 2px;
}

.section-header p {
  color: var(--color-gray-500);
  max-width: 600px;
  margin: 0 auto;
  font-size: var(--font-size-md);
}

.section-bg-dark .section-header p {
  color: var(--color-gray-300);
}

/* ============================================================
   单行紧凑型顶部导航栏 (2026-07-01 重构)
   结构：Logo(左) | 导航(中) | 热线+CTA(右)
   响应式：≤1024px 隐藏导航显示汉堡
   ============================================================ */

/* --- 头部容器 --- */
.site-header {
  position: fixed;
  top: 40px; /* 快捷栏高度 */
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
  height: 68px;
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 68px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  gap: 0;
}

/* --- Logo --- */
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
  margin-right: 32px;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(30,64,175,0.3);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.logo-text strong {
  font-size: 16px;
  font-weight: 800;
  color: #1e40af;
  letter-spacing: 0.5px;
}

.logo-text span {
  font-size: 11px;
  color: #9ca3af;
  font-weight: 400;
}

/* --- 主导航（桌面） --- */
.header-nav {
  flex: 1;
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2px;
  margin: 0;
  padding: 0;
}

.nav-list > li {
  position: relative;
}

.nav-list > li > a {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 0 14px;
  height: 68px;
  line-height: 68px;
  color: #4b5563;
  font-size: 14.5px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s, background 0.2s;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.nav-list > li > a:hover {
  color: #1e40af;
  background: rgba(30,64,175,0.04);
}

.nav-list > li > a.active {
  color: #1e40af;
  font-weight: 700;
  border-bottom-color: #1e40af;
}

.nav-arrow {
  font-size: 10px;
  opacity: 0.6;
  margin-left: 1px;
}

/* 下拉菜单 */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
  padding: 8px;
  min-width: 160px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  z-index: 100;
}

.nav-list > li:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
}

.nav-dropdown a {
  display: block;
  padding: 9px 14px;
  color: #4b5563;
  font-size: 14px;
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.nav-dropdown a:hover {
  background: #eff6ff;
  color: #1e40af;
}

/* --- 右侧：热线 + CTA --- */
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  margin-left: 16px;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #1e40af;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
  transition: background 0.2s;
  white-space: nowrap;
}

.header-phone:hover {
  background: rgba(30,64,175,0.06);
  color: #1e3a8a;
}

.header-phone svg {
  color: #1e40af;
  flex-shrink: 0;
}

.btn-header-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 3px 12px rgba(249,115,22,0.35);
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.btn-header-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 5px 18px rgba(249,115,22,0.45);
  color: #fff;
  background: linear-gradient(135deg, #fb923c, #f97316);
}

/* --- 汉堡按钮（移动端） --- */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: background 0.2s;
}

.hamburger:hover {
  background: rgba(0,0,0,0.05);
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: #374151;
  border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- 全局快捷操作栏 --- */
.quick-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1001;
  background: linear-gradient(90deg, #1a73e8, #4a90d9);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.quick-bar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 4px;
  height: 40px;
  overflow-x: auto;
}
.quick-bar .quick-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13px;
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s, color 0.2s;
  border: none;
  background: transparent;
  cursor: pointer;
}
.quick-bar .quick-btn:hover {
  background: rgba(255,255,255,0.2);
  color: #fff;
}
.quick-bar .quick-btn span {
  font-size: 14px;
}
.quick-close {
  margin-left: auto;
  padding: 6px 8px;
  font-size: 12px;
}

/* --- 占位元素（快捷栏40px + 导航68px） --- */
.header-spacer {
  height: 108px;
}

/* ============================================================
   移动端导航菜单
   ============================================================ */

.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.45);
  z-index: 1001;
  opacity: 0;
  transition: opacity 0.3s;
}

.mobile-overlay.active {
  opacity: 1;
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  max-width: 85vw;
  height: 100%;
  background: #fff;
  z-index: 1002;
  box-shadow: -4px 0 30px rgba(0,0,0,0.15);
  transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid #e5e7eb;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: #fff;
}

.mobile-menu-title {
  font-size: 16px;
  font-weight: 700;
}

.mobile-menu-close {
  background: rgba(255,255,255,0.2);
  border: none;
  color: #fff;
  font-size: 18px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.mobile-menu-close:hover {
  background: rgba(255,255,255,0.35);
}

.mobile-nav-list {
  flex: 1;
  padding: 12px 0;
  overflow-y: auto;
}

.mobile-nav-list a,
.mobile-nav-list .mobile-nav-group-title {
  display: block;
  padding: 12px 20px;
  color: #374151;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
  border: none;
  border-bottom: none;
}

.mobile-nav-list a:hover,
.mobile-nav-list a.active {
  color: #1e40af;
  background: #eff6ff;
}

.mobile-nav-group-title {
  font-size: 12px;
  font-weight: 700;
  color: #9ca3af;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding-top: 20px;
  padding-bottom: 4px;
  cursor: default;
}

.mobile-nav-group a {
  padding-left: 36px !important;
  font-size: 14px !important;
  color: #6b7280 !important;
}

.mobile-nav-group a:hover {
  color: #1e40af !important;
}

.mobile-menu-footer {
  padding: 16px 20px;
  border-top: 1px solid #e5e7eb;
  background: #f9fafb;
}

.mobile-menu-tel {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  border-radius: 8px;
  text-decoration: none;
}

/* --- 按钮通用变体（补充） --- */
.btn-sm {
  padding: 6px 16px;
  font-size: var(--font-size-sm);
}

/* 倒计时横幅 */
.countdown-banner {
  position: fixed;
  top: calc(var(--topbar-height, 70px) + var(--navbar-height, 56px));
  left: 0;
  width: 100%;
  z-index: 999;
  background: linear-gradient(135deg, var(--color-red), #dc2626);
  color: var(--color-white);
  padding: var(--spacing-sm) 0;
  font-size: var(--font-size-sm);
  text-align: center;
  display: none;
}

.countdown-banner.show {
  display: block;
}

.countdown-banner .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  position: relative;
}

.countdown-banner .countdown-text {
  font-weight: 500;
}

.countdown-banner .countdown-timer {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 700;
}

.countdown-banner .countdown-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  background: rgba(255,255,255,0.2);
  border-radius: var(--radius-sm);
  padding: 0 4px;
  font-size: var(--font-size-base);
}

.countdown-banner .countdown-unit {
  font-size: var(--font-size-xs);
  opacity: 0.8;
  margin-right: 4px;
}

.countdown-banner .countdown-close {
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-white);
  font-size: var(--font-size-lg);
  cursor: pointer;
  opacity: 0.8;
  padding: 4px;
  line-height: 1;
}

.countdown-banner .countdown-close:hover {
  opacity: 1;
}

/* --- Hero 区域 --- */
.hero {
  position: relative;
  padding: var(--spacing-4xl) 0 var(--spacing-3xl);
  background: linear-gradient(135deg, #e8f0fe 0%, #f0e6ff 50%, #fef3e2 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(26,115,232,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(230,126,34,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 600px;
}

.hero-content h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-900);
}

.hero-content h1 .highlight {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-lg);
  color: var(--color-gray-500);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.hero-stat {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.hero-stat .num {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.hero-stat .num .suffix {
  font-size: var(--font-size-md);
}

.hero-stat .label {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  margin-top: var(--spacing-xs);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero-form {
  margin-top: var(--spacing-xl);
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  max-width: 400px;
}

.hero-form h3 {
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-lg);
  text-align: center;
  color: var(--color-gray-900);
}

.hero-form .form-group {
  margin-bottom: var(--spacing-md);
}

.hero-form input,
.hero-form select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  transition: border-color var(--transition-fast);
  outline: none;
}

.hero-form input:focus,
.hero-form select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}

.hero-form button {
  width: 100%;
}

/* --- 关于我们（4卡片网格） --- */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: all var(--transition-base);
  border: 1px solid var(--color-gray-100);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-bg);
}

.feature-card .icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--spacing-md);
  background: var(--color-primary-bg);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.feature-card h3 {
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-bottom: 0;
}

/* --- 招生项目（3卡片） --- */
.programs-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.program-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-base);
  position: relative;
}

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

.program-card .program-badge {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-white);
}

.program-card .program-badge.blue {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

.program-card .program-badge.orange {
  background: linear-gradient(135deg, var(--color-secondary), #d35400);
}

.program-card .program-badge.green {
  background: linear-gradient(135deg, var(--color-green), var(--color-green-dark));
}

.program-card .program-top {
  padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
  text-align: center;
  position: relative;
}

.program-card .program-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-md);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
}

.program-card .program-icon.blue {
  background: var(--color-primary-bg);
}

.program-card .program-icon.orange {
  background: var(--color-secondary-bg);
}

.program-card .program-icon.green {
  background: var(--color-green-bg);
}

.program-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

.program-card .program-desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-md);
}

.program-card .program-features {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.program-card .program-features li {
  padding: var(--spacing-sm) 0;
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  border-bottom: 1px dashed var(--color-gray-100);
}

.program-card .program-features li:last-child {
  border-bottom: none;
}

.program-card .program-features li::before {
  content: '✓';
  color: var(--color-green);
  font-weight: 700;
}

.program-card .program-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-gray-50);
  border-top: 1px solid var(--color-gray-100);
  text-align: center;
}

/* --- 学员案例 --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.testimonial-card {
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-base);
}

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

.testimonial-card .testi-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.testimonial-card .testi-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.testimonial-card .testi-meta h4 {
  font-size: var(--font-size-base);
  margin-bottom: 2px;
}

.testimonial-card .testi-meta span {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

.testimonial-card .testi-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.testimonial-card .testi-tags span {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.testimonial-card .testi-tags .tag-school {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.testimonial-card .testi-tags .tag-major {
  background: var(--color-green-bg);
  color: var(--color-green);
}

.testimonial-card .testi-tags .tag-project {
  background: var(--color-secondary-bg);
  color: var(--color-secondary);
}

.testimonial-card blockquote {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  font-style: italic;
  line-height: 1.7;
  position: relative;
  padding-left: var(--spacing-lg);
  border-left: 3px solid var(--color-primary);
}

/* --- 为什么选择我们（深色背景） --- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.service-card {
  text-align: center;
  padding: var(--spacing-xl);
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
  border: 1px solid rgba(255,255,255,0.1);
}

.service-card:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-4px);
}

.service-card .icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-md);
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.service-card h3 {
  color: var(--color-white);
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-sm);
}

.service-card p {
  color: rgba(255,255,255,0.7);
  font-size: var(--font-size-sm);
  margin-bottom: 0;
}

/* --- 免费备考资料包 --- */
.resource-pack {
  background: linear-gradient(135deg, #fef9c3, #fef08a);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl) var(--spacing-xl);
  border: 2px dashed var(--color-secondary);
  position: relative;
  overflow: hidden;
}

.resource-pack::before {
  content: '📚';
  position: absolute;
  top: -20px;
  right: -10px;
  font-size: 100px;
  opacity: 0.1;
  transform: rotate(15deg);
}

.resource-pack .resource-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.resource-pack .resource-header h3 {
  font-size: var(--font-size-xl);
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-sm);
}

.resource-pack .resource-header p {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
}

.resource-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.resource-list li {
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255,255,255,0.8);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.resource-list li::before {
  content: '✅';
  font-size: var(--font-size-sm);
}

.price-compare {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.price-compare .original {
  font-size: var(--font-size-lg);
  color: var(--color-gray-400);
  text-decoration: line-through;
}

.price-compare .current {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-red);
}

.price-compare .tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-red);
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
}

.resource-form {
  max-width: 400px;
  margin: 0 auto;
}

.resource-form .form-group {
  margin-bottom: var(--spacing-md);
}

.resource-form input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  outline: none;
  transition: border-color var(--transition-fast);
}

.resource-form input:focus {
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(230,126,34,0.1);
}

.resource-form button {
  width: 100%;
}

/* --- 微信私域区（绿底） --- */
.wechat-area {
  background: linear-gradient(135deg, #16a34a, #15803d);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl) var(--spacing-xl);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.wechat-area::before {
  content: '💬';
  position: absolute;
  bottom: -20px;
  right: -10px;
  font-size: 120px;
  opacity: 0.08;
}

.wechat-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.wechat-qr {
  text-align: center;
}

.wechat-qr .qr-placeholder {
  width: 180px;
  height: 180px;
  margin: 0 auto var(--spacing-md);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 80px;
  padding: var(--spacing-md);
}

.wechat-qr p {
  color: rgba(255,255,255,0.9);
  font-size: var(--font-size-sm);
  margin-bottom: 0;
}

.wechat-services h3 {
  color: var(--color-white);
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

.wechat-services p {
  color: rgba(255,255,255,0.85);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-lg);
}

.wechat-services ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
}

.wechat-services ul li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.9);
}

.wechat-services ul li::before {
  content: '✅';
}

.wechat-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px 28px;
  background: var(--color-white);
  color: var(--color-green);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--font-size-sm);
  transition: all var(--transition-base);
}

.wechat-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  color: var(--color-green-dark);
}

/* --- 报考流程（4步时间线） --- */
.process-timeline {
  position: relative;
  padding-left: 40px;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
}

.process-step {
  position: relative;
  padding-bottom: var(--spacing-xl);
}

.process-step:last-child {
  padding-bottom: 0;
}

.process-step .step-num {
  position: absolute;
  left: -32px;
  top: 0;
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: 700;
  z-index: 1;
}

.process-step:nth-child(2) .step-num {
  background: linear-gradient(135deg, var(--color-secondary), #d35400);
}

.process-step:nth-child(3) .step-num {
  background: linear-gradient(135deg, var(--color-green), var(--color-green-dark));
}

.process-step:nth-child(4) .step-num {
  background: linear-gradient(135deg, var(--color-primary), #4a148c);
}

.process-step h3 {
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-xs);
}

.process-step p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-bottom: 0;
}

/* --- FAQ 手风琴 --- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--color-primary-bg);
}

.faq-item.active {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  user-select: none;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-item.active .faq-question {
  color: var(--color-primary);
}

.faq-question .faq-toggle {
  font-size: var(--font-size-lg);
  font-weight: 300;
  transition: transform var(--transition-base);
  flex-shrink: 0;
  margin-left: var(--spacing-md);
}

.faq-item.active .faq-question .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base), padding var(--transition-base);
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.faq-answer p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-sm);
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  border-radius: var(--radius-full);
  margin-right: var(--spacing-sm);
}

.faq-tag.blue {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.faq-tag.orange {
  background: var(--color-secondary-bg);
  color: var(--color-secondary);
}

.faq-tag.green {
  background: var(--color-green-bg);
  color: var(--color-green);
}

/* --- 联系/报名区域（两栏） --- */
.contact-section {
  background: var(--color-gray-50);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
}

.contact-info h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
}

.contact-info-item {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.contact-info-item .icon {
  width: 44px;
  height: 44px;
  background: var(--color-primary-bg);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-info-item h4 {
  font-size: var(--font-size-sm);
  margin-bottom: 2px;
}

.contact-info-item p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-bottom: 0;
}

.contact-form {
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.contact-form h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-lg);
}

.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.contact-form .form-group {
  margin-bottom: var(--spacing-md);
}

.contact-form label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-xs);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  outline: none;
  transition: border-color var(--transition-fast);
  background: var(--color-white);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}

.contact-form textarea {
  resize: vertical;
  min-height: 100px;
}

.contact-form button {
  width: 100%;
}

/* --- 页脚 --- */
.footer {
  background: var(--color-gray-900);
  color: var(--color-gray-300);
  padding: var(--spacing-3xl) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

.footer-col h3 {
  color: var(--color-white);
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-md);
  position: relative;
  padding-bottom: var(--spacing-sm);
}

.footer-col h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-primary);
}

.footer-col p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
  margin-bottom: var(--spacing-sm);
}

.footer-col p:last-child {
  margin-bottom: 0;
}

.footer-col ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-col ul li a {
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
  color: var(--color-primary);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-sm);
}

.footer-contact li .contact-icon {
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-lg) 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
}

.footer-bottom p {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  margin-bottom: 0;
}

.footer-bottom a {
  color: var(--color-gray-400);
}

.footer-bottom a:hover {
  color: var(--color-primary);
}

/* --- 底部悬浮栏（手机端） --- */
.bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 999;
  background: var(--color-white);
  box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
  display: flex;
  padding: var(--spacing-sm) 0;
  display: none;
}

.bottom-bar.show {
  display: flex;
}

.bottom-bar a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: var(--spacing-xs) 0;
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.bottom-bar a .bar-icon {
  font-size: 20px;
}

.bottom-bar a:hover,
.bottom-bar a.active {
  color: var(--color-primary);
}

.bottom-bar a.cta-bar {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
  color: var(--color-white);
  border-radius: var(--radius-md);
  margin: 0 var(--spacing-sm);
  font-weight: 600;
}

/* --- 退出弹窗 --- */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  z-index: 2000;
  backdrop-filter: blur(4px);
}

.modal-overlay.active {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.modal-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  max-width: 500px;
  width: 100%;
  position: relative;
  animation: modalIn 0.3s ease;
  box-shadow: var(--shadow-xl);
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 32px;
  height: 32px;
  background: var(--color-gray-100);
  border: none;
  border-radius: var(--radius-full);
  font-size: var(--font-size-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-gray-200);
  color: var(--color-gray-700);
}

.modal-card .modal-icon {
  text-align: center;
  font-size: 48px;
  margin-bottom: var(--spacing-md);
}

.modal-card h3 {
  text-align: center;
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.modal-card p {
  text-align: center;
  color: var(--color-gray-500);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-lg);
}

.modal-card .modal-form .form-group {
  margin-bottom: var(--spacing-md);
}

.modal-card .modal-form input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  outline: none;
}

.modal-card .modal-form input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}

.modal-card .modal-form button {
  width: 100%;
}

.modal-card .modal-footer-text {
  text-align: center;
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
  margin-top: var(--spacing-md);
  margin-bottom: 0;
}

/* --- 按钮样式 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 28px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  font-family: var(--font-family);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
}

.btn-primary:hover {
  box-shadow: var(--shadow-primary);
  color: var(--color-white);
}

.btn-orange {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
  color: var(--color-white);
}

.btn-orange:hover {
  box-shadow: var(--shadow-secondary);
  color: var(--color-white);
}

.btn-green {
  background: linear-gradient(135deg, var(--color-green), var(--color-green-dark));
  color: var(--color-white);
}

.btn-green:hover {
  box-shadow: 0 4px 16px rgba(22,163,74,0.3);
  color: var(--color-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

.btn-outline-orange {
  background: transparent;
  color: var(--color-secondary);
  border: 2px solid var(--color-secondary);
}

.btn-outline-orange:hover {
  background: var(--color-secondary);
  color: var(--color-white);
}

.btn-sm {
  padding: 8px 18px;
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: 16px 36px;
  font-size: var(--font-size-base);
}

.btn-block {
  width: 100%;
}

.btn-loading {
  pointer-events: none;
  opacity: 0.8;
}

.btn-loading .btn-text {
  visibility: hidden;
}

.btn-loading::after {
  content: '';
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  position: absolute;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --- 表单通用样式 --- */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-xs);
}

.form-group .required::after {
  content: ' *';
  color: var(--color-red);
}

input[type="text"],
input[type="tel"],
input[type="email"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  outline: none;
  background: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  color: var(--color-gray-800);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-gray-400);
}

.form-success-message {
  display: none;
  padding: var(--spacing-lg);
  background: var(--color-green-bg);
  border: 1px solid var(--color-green);
  border-radius: var(--radius-md);
  text-align: center;
}

.form-success-message.show {
  display: block;
}

.form-success-message .success-icon {
  font-size: 36px;
  margin-bottom: var(--spacing-sm);
}

.form-success-message h4 {
  color: var(--color-green);
  margin-bottom: var(--spacing-xs);
}

.form-success-message p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  margin-bottom: 0;
}

.form-error {
  color: var(--color-red);
  font-size: var(--font-size-xs);
  margin-top: var(--spacing-xs);
}

/* --- 滚动入场动画 --- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.delay-1 { transition-delay: 0.1s; }
.animate-on-scroll.delay-2 { transition-delay: 0.2s; }
.animate-on-scroll.delay-3 { transition-delay: 0.3s; }
.animate-on-scroll.delay-4 { transition-delay: 0.4s; }

/* --- 博客文章列表 --- */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.blog-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
}

.blog-sidebar {
  order: -1;
}

.blog-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-base);
}

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

.blog-card .blog-thumb {
  height: 200px;
  background: linear-gradient(135deg, var(--color-primary-bg), var(--color-secondary-bg));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
}

.blog-card .blog-body {
  padding: var(--spacing-lg);
}

.blog-card .blog-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

.blog-card .blog-meta .blog-cat {
  display: inline-block;
  padding: 2px 10px;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-weight: 600;
}

.blog-card .blog-meta .blog-date {
  color: var(--color-gray-400);
}

.blog-card h3 {
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-sm);
  line-height: 1.4;
}

.blog-card h3 a {
  color: var(--color-gray-900);
}

.blog-card h3 a:hover {
  color: var(--color-primary);
}

.blog-card .blog-excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-md);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card .blog-read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
}

.blog-card .blog-read-more::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.blog-card .blog-read-more:hover::after {
  transform: translateX(4px);
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-xl);
}

.pagination a, .pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 8px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  text-decoration: none;
  transition: all var(--transition-fast);
  background: var(--color-white);
}

.pagination a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-bg);
}

.pagination .active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.pagination .disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* 博客边栏 */
.sidebar-widget {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
  margin-bottom: var(--spacing-lg);
}

.sidebar-widget:last-child {
  margin-bottom: 0;
}

.sidebar-widget h3 {
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-primary-bg);
}

.sidebar-widget ul li {
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-gray-100);
}

.sidebar-widget ul li:last-child {
  border-bottom: none;
}

.sidebar-widget ul li a {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

.sidebar-widget ul li a:hover {
  color: var(--color-primary);
}

.sidebar-widget ul li a .view-count {
  color: var(--color-gray-400);
  font-size: var(--font-size-xs);
}

.sidebar-cta {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
}

.sidebar-cta h3 {
  color: var(--color-white);
  border-bottom-color: rgba(255,255,255,0.2);
}

.sidebar-cta p {
  color: rgba(255,255,255,0.85);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-md);
}

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

.sidebar-cta .btn:hover {
  background: var(--color-gray-100);
}

/* --- 项目详情页 / 落地页样式 --- */
.page-hero {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, var(--color-primary-bg) 0%, #f0e6ff 50%, var(--color-secondary-bg) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -30%;
  left: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(26,115,232,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.page-hero h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-sm);
}

.page-hero p {
  color: var(--color-gray-500);
  font-size: var(--font-size-md);
  max-width: 600px;
  margin: 0 auto;
}

.page-hero .page-breadcrumb {
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
  margin-bottom: var(--spacing-md);
}

.page-hero .page-breadcrumb a {
  color: var(--color-gray-500);
}

.page-hero .page-breadcrumb a:hover {
  color: var(--color-primary);
}

.page-hero .page-breadcrumb span {
  color: var(--color-primary);
}

/* 项目详情卡片 */
.project-detail-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-2xl);
  margin-bottom: var(--spacing-xl);
  border: 1px solid var(--color-gray-100);
}

.project-detail-card h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-primary-bg);
}

.project-detail-card h3 {
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-800);
}

.project-detail-card p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-md);
}

.project-detail-card ul {
  margin-bottom: var(--spacing-md);
}

.project-detail-card ul li {
  padding: var(--spacing-sm) 0;
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.project-detail-card ul li::before {
  content: '✓';
  color: var(--color-green);
  font-weight: 700;
  flex-shrink: 0;
}

/* 对比表格 */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-xl);
  font-size: var(--font-size-sm);
}

.compare-table thead th {
  background: var(--color-gray-800);
  color: var(--color-white);
  padding: var(--spacing-md);
  text-align: center;
  font-weight: 600;
}

.compare-table thead th:first-child {
  border-radius: var(--radius-md) 0 0 0;
}

.compare-table thead th:last-child {
  border-radius: 0 var(--radius-md) 0 0;
}

.compare-table tbody td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-gray-100);
  color: var(--color-gray-600);
}

.compare-table tbody tr:nth-child(even) {
  background: var(--color-gray-50);
}

.compare-table tbody tr:hover {
  background: var(--color-primary-bg);
}

.compare-table tbody td:first-child {
  font-weight: 600;
  color: var(--color-gray-700);
}

/* 大学列表（合作伙伴） */
.university-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.university-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.university-item:hover {
  background: var(--color-primary-bg);
  transform: translateX(4px);
}

.university-item .uni-emoji {
  font-size: 28px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.university-item .uni-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
}

/* 考试科目列表 */
.exam-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.exam-level {
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
}

.exam-level h4 {
  font-size: var(--font-size-base);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.exam-level ul li {
  padding: var(--spacing-xs) 0;
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

/* 分数线表格 */
.score-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
}

.score-table thead th {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: center;
}

.score-table tbody td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: center;
  border-bottom: 1px solid var(--color-gray-100);
  color: var(--color-gray-600);
}

.score-table tbody tr:nth-child(even) {
  background: var(--color-gray-50);
}

/* 时间线（流程） */
.step-list {
  counter-reset: step-counter;
}

.step-list li {
  counter-increment: step-counter;
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md) 0;
  border-bottom: 1px dashed var(--color-gray-200);
}

.step-list li:last-child {
  border-bottom: none;
}

.step-list li::before {
  content: counter(step-counter);
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: 700;
  flex-shrink: 0;
}

.step-list li span {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.6;
}

/* --- 页面Hero 小尺寸（内页） --- */
.page-hero-small {
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(135deg, #e8f0fe, #f0e6ff);
  text-align: center;
}

.page-hero-small h1 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-xs);
}

.page-hero-small p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

/* --- 标签筛选（学员案例页） --- */
.filter-tabs {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.filter-tab {
  padding: 8px 20px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--color-white);
  font-family: var(--font-family);
}

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

.filter-tab.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* 关于页 - 发展历程时间线 */
.timeline-about {
  position: relative;
}

.timeline-about::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
}

.timeline-item {
  position: relative;
  padding-left: 50px;
  padding-bottom: var(--spacing-xl);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item .tl-dot {
  position: absolute;
  left: 13px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  border: 3px solid var(--color-primary);
  background: var(--color-white);
}

.timeline-item:nth-child(2) .tl-dot { border-color: var(--color-secondary); }
.timeline-item:nth-child(3) .tl-dot { border-color: var(--color-green); }
.timeline-item:nth-child(4) .tl-dot { border-color: var(--color-secondary); }
.timeline-item:nth-child(5) .tl-dot { border-color: var(--color-primary); }

.timeline-item .tl-year {
  display: inline-block;
  padding: 2px 12px;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.timeline-item .tl-content h3 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-xs);
}

.timeline-item .tl-content p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-bottom: 0;
}

/* ============================================================
   导航栏响应式（2026-07-01 新设计）
   ============================================================ */

/* ≤1024px：隐藏桌面导航，显示汉堡 */
@media (max-width: 1024px) {
  .header-nav {
    display: none;
  }

  .header-right .header-phone {
    display: none;
  }

  .header-right .btn-header-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .header-inner {
    padding: 0 16px;
    justify-content: space-between;
  }

  .header-logo {
    margin-right: 0;
  }

  .mobile-overlay {
    display: block;
  }
}

/* ≤767px：额外微调 */
@media (max-width: 767px) {
  .logo-text span {
    display: none;
  }

  .header-spacer {
    height: 60px;
  }

  .site-header {
    height: 60px;
  }

  .header-inner {
    height: 60px;
  }

  .logo-icon {
    width: 32px;
    height: 32px;
  }

  .logo-text strong {
    font-size: 15px;
  }
}

/* ≤480px：极小屏幕 */
@media (max-width: 480px) {
  .mobile-menu {
    width: 100vw;
    max-width: 100vw;
  }
}

/* --- 响应式断点 --- */
/* 480px 以上 - 大手机 */
@media (min-width: 480px) {
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .university-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .resource-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .exam-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 768px 以上 - 平板 */
@media (min-width: 768px) {
  :root {
    --header-height: 72px;
    --topbar-height: 70px;
    --navbar-height: 56px;
  }

  .topbar-toggle {
    display: none !important;
  }

  .topbar-info,
  .topbar-actions {
    display: flex !important;
  }

  .topbar-info {
    margin-left: auto;
    gap: var(--spacing-sm);
  }

  .topbar-phone {
    font-size: var(--font-size-lg);
  }

  .navbar-menu a {
    padding: 0 20px;
    font-size: 14px;
  }

  .hero .container {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: var(--spacing-2xl);
    align-items: center;
  }

  .hero-content h1 {
    font-size: var(--font-size-4xl);
  }

  .hero-form {
    margin-top: 0;
  }

  .hero-buttons {
    flex-wrap: nowrap;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .programs-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .wechat-content {
    grid-template-columns: auto 1fr;
  }

  .contact-wrapper {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .blog-layout {
    grid-template-columns: 1fr 300px;
  }

  .blog-sidebar {
    order: 1;
  }

  .contact-form .form-row {
    grid-template-columns: 1fr 1fr;
  }

  .exam-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .mobile-nav,
  .nav-overlay {
    display: none !important;
  }

  .bottom-bar {
    display: none !important;
  }

  .university-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 1024px 以上 - 桌面 */
@media (min-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr 400px;
  }

  .hero-content h1 {
    font-size: 48px;
  }

  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .services-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .university-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .topbar-actions {
    display: flex;
  }

  .navbar-menu a {
    padding: 0 28px;
    font-size: 15px;
  }
}

/* 1200px 以上 */
@media (min-width: 1200px) {
  .hero .container {
    grid-template-columns: 1fr 440px;
  }

  .header-nav ul {
    gap: var(--spacing-md);
  }

  .header-nav a {
    padding: var(--spacing-sm) var(--spacing-lg);
  }
}

/* 文章详情页样式 */
.article-header {
  margin-bottom: var(--spacing-xl);
}

.article-header .article-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  flex-wrap: wrap;
}

.article-header .article-cat {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--font-size-xs);
}

.article-body {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-gray-700);
}

.article-body h2 {
  font-size: var(--font-size-xl);
  margin: var(--spacing-xl) 0 var(--spacing-md);
  color: var(--color-gray-900);
}

.article-body h3 {
  font-size: var(--font-size-md);
  margin: var(--spacing-lg) 0 var(--spacing-md);
  color: var(--color-gray-800);
}

.article-body p {
  margin-bottom: var(--spacing-md);
}

.article-body ul, .article-body ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-xl);
}

.article-body ul li {
  list-style: disc;
  margin-bottom: var(--spacing-xs);
  color: var(--color-gray-600);
}

.article-body ol li {
  list-style: decimal;
  margin-bottom: var(--spacing-xs);
  color: var(--color-gray-600);
}

.article-body blockquote {
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-md) var(--spacing-lg);
  border-left: 4px solid var(--color-primary);
  background: var(--color-gray-50);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article-body blockquote p {
  margin-bottom: 0;
  font-style: italic;
  color: var(--color-gray-600);
}

.article-body strong {
  color: var(--color-gray-900);
}

.article-body a {
  color: var(--color-primary);
  text-decoration: underline;
}

.article-footer {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-gray-200);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.article-tags a {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-gray-100);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  color: var(--color-gray-600);
}

.article-tags a:hover {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.related-articles {
  margin-top: var(--spacing-xl);
}

.related-articles h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-lg);
}

.article-cta-bottom {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-xl);
  background: linear-gradient(135deg, var(--color-primary-bg), var(--color-secondary-bg));
  border-radius: var(--radius-xl);
  text-align: center;
}

.article-cta-bottom h3 {
  margin-bottom: var(--spacing-sm);
}

.article-cta-bottom p {
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-lg);
}

/* 关于团队卡片 */
.team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.team-card {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
}

.team-card .team-avatar {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md);
  background: var(--color-primary-bg);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
}

.team-card h4 {
  margin-bottom: var(--spacing-xs);
}

.team-card .team-title {
  font-size: var(--font-size-xs);
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.team-card p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .team-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* FAQ分类标签 */
.faq-categories {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.faq-cat {
  padding: 6px 16px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--color-white);
}

.faq-cat:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.faq-cat.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* 工具类 */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-orange { color: var(--color-secondary); }
.text-green { color: var(--color-green); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }