/* ===== 苹果风格设计系统 - CSS变量 ===== */
:root {
  --color-primary: #007AFF;
  --color-primary-hover: #0056CC;
  --color-primary-light: rgba(0, 122, 255, 0.1);
  --color-secondary: #5856D6;
  --color-success: #34C759;
  --color-warning: #FF9500;
  --color-danger: #FF3B30;

  --color-bg: #F5F5F7;
  --color-bg-secondary: #FFFFFF;
  --color-bg-tertiary: #EBEBED;
  --color-bg-elevated: #FFFFFF;

  --color-text: #1D1D1F;
  --color-text-secondary: #86868B;
  --color-text-tertiary: #C7C7CC;

  --color-border: #D2D2D7;
  --color-border-light: #E5E5EA;

  --color-overlay: rgba(0, 0, 0, 0.3);

  --grid-color: #E1E1E1;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  --transition-fast: 0.15s ease;
  --transition-base: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-slow: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-spring: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);

  --font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Monaco", "Menlo", "Cascadia Code", "Consolas", monospace;

  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 32px;
  --font-size-4xl: 48px;
  --font-size-5xl: 64px;

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  --container-max: 1200px;
  --container-narrow: 800px;

  --z-navigation: 100;
  --z-mobile-menu: 200;
  --z-modal: 300;
}

[data-theme="dark"] {
  --color-primary: #0A84FF;
  --color-primary-hover: #409CFF;
  --color-primary-light: rgba(10, 132, 255, 0.15);

  --color-bg: #000000;
  --color-bg-secondary: #1C1C1E;
  --color-bg-tertiary: #2C2C2E;
  --color-bg-elevated: #1C1C1E;

  --color-text: #F5F5F7;
  --color-text-secondary: #8E8E93;
  --color-text-tertiary: #48484A;

  --color-border: #38383A;
  --color-border-light: #2C2C2E;

  --color-overlay: rgba(0, 0, 0, 0.6);

  --grid-color: #2C2C2E;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.6);
}

/* ===== 全局重置 ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    linear-gradient(0deg, transparent 24%, var(--grid-color) 25%, var(--grid-color) 26%, transparent 27%, transparent 74%, var(--grid-color) 75%, var(--grid-color) 76%, transparent 77%, transparent),
    linear-gradient(90deg, transparent 24%, var(--grid-color) 25%, var(--grid-color) 26%, transparent 27%, transparent 74%, var(--grid-color) 75%, var(--grid-color) 76%, transparent 77%, transparent);
  background-size: 55px 55px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}

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

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

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

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-text);
}

/* ===== 工具类 ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.text-center { text-align: center; }
.text-secondary { color: var(--color-text-secondary); }
.text-primary { color: var(--color-primary); }

.section {
  padding: var(--space-4xl) 0;
}

.section-header {
  margin-bottom: var(--space-2xl);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
}

/* ===== 按钮样式 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px;
}

.btn:active {
  transform: scale(0.97);
}

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

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text);
}

.btn-secondary:hover {
  background-color: var(--color-border-light);
}

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

.btn-ghost:hover {
  background-color: var(--color-primary-light);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-base);
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-navigation);
  padding: var(--space-md) 0;
  transition: all var(--transition-base);
  background-color: transparent;
}

.navbar.scrolled {
  background-color: rgba(245, 245, 247, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--color-border-light);
  padding: var(--space-sm) 0;
}

[data-theme="dark"] .navbar.scrolled {
  background-color: rgba(28, 28, 30, 0.72);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.navbar-logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.5px;
}

.navbar-logo span {
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding: var(--space-sm) 0;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  color: var(--color-text-secondary);
}

.theme-toggle:hover {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

.mobile-menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.mobile-menu-btn:hover {
  background-color: var(--color-bg-tertiary);
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
}

/* ===== 移动端菜单 ===== */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background-color: var(--color-bg-secondary);
  z-index: var(--z-mobile-menu);
  padding: var(--space-2xl) var(--space-lg);
  transition: right var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  box-shadow: var(--shadow-xl);
}

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

.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--color-overlay);
  z-index: calc(var(--z-mobile-menu) - 1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.mobile-menu-overlay.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-close {
  align-self: flex-end;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.mobile-menu-close:hover {
  background-color: var(--color-bg-tertiary);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.mobile-nav-link {
  display: block;
  padding: var(--space-md);
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background-color: var(--color-bg-tertiary);
  color: var(--color-primary);
}

/* ===== 页脚 ===== */
.footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border-light);
  padding: var(--space-2xl) 0 var(--space-xl);
  margin-top: var(--space-3xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-brand h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.footer-brand h3 span {
  color: var(--color-primary);
}

.footer-brand p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  max-width: 300px;
}

.footer-column h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-secondary);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid var(--color-border-light);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.footer-social svg {
  width: 16px;
  height: 16px;
}

/* ===== 动画效果 ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

.stagger-1 { transition-delay: 0.05s; }
.stagger-2 { transition-delay: 0.1s; }
.stagger-3 { transition-delay: 0.15s; }
.stagger-4 { transition-delay: 0.2s; }
.stagger-5 { transition-delay: 0.25s; }
.stagger-6 { transition-delay: 0.3s; }

@keyframes heroPulse {
  0%, 100% { transform: translateX(-50%) scale(1); opacity: 0.6; }
  50% { transform: translateX(-50%) scale(1.1); opacity: 0.8; }
}

/* ===== 简历 - Hero 区域 ===== */
.resume-hero {
  padding: calc(80px + var(--space-3xl)) 0 var(--space-3xl);
  position: relative;
  overflow: hidden;
}

.resume-hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.resume-hero-bg::before {
  content: '';
  position: absolute;
  top: -300px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-primary-light) 0%, transparent 70%);
  opacity: 0.5;
  animation: heroPulse 10s ease-in-out infinite;
}

.resume-hero-bg::after {
  content: '';
  position: absolute;
  bottom: -200px;
  left: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(88, 86, 214, 0.08) 0%, transparent 70%);
  opacity: 0.6;
  animation: heroPulse 12s ease-in-out infinite reverse;
}

.resume-hero-content {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.resume-hero-avatar {
  flex-shrink: 0;
  position: relative;
}

.resume-hero-avatar img {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--color-bg-secondary);
  box-shadow: var(--shadow-xl);
}

.resume-hero-avatar::after {
  content: '';
  position: absolute;
  bottom: 8px;
  right: 8px;
  width: 24px;
  height: 24px;
  background-color: var(--color-success);
  border: 3px solid var(--color-bg-secondary);
  border-radius: 50%;
}

.resume-hero-text h1 {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.resume-hero-title {
  font-size: var(--font-size-xl);
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.resume-hero-summary {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-xl);
  max-width: 600px;
}

.resume-hero-info {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md) var(--space-xl);
  margin-bottom: var(--space-xl);
}

.resume-hero-info-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.resume-hero-info-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
}

.resume-hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.resume-hero-social {
  display: flex;
  gap: var(--space-sm);
}

.resume-hero-social a {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.resume-hero-social a:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.resume-hero-social svg {
  width: 22px;
  height: 22px;
}

/* ===== 统计数据 ===== */
.stats-section {
  padding: var(--space-2xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.stat-card {
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

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

.stat-number {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
  line-height: 1;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* ===== 技能 ===== */
.skills-section {
  padding: var(--space-3xl) 0;
  background-color: var(--color-bg-secondary);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.skill-category-card {
  background-color: var(--color-bg);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

[data-theme="dark"] .skill-category-card {
  background-color: var(--color-bg-tertiary);
}

.skill-category-card:hover {
  box-shadow: var(--shadow-md);
}

.skill-category-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.skill-category-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.skill-category-icon svg {
  width: 24px;
  height: 24px;
}

.skill-category-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.skill-category-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.skill-category-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.skill-tag {
  padding: 6px 14px;
  font-size: var(--font-size-sm);
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.skill-tag:hover {
  background-color: var(--color-primary);
  color: white;
}

/* ===== 项目作品 ===== */
.projects-section {
  padding: var(--space-3xl) 0;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.project-card {
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.project-card-image {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-card-image img {
  transform: scale(1.05);
}

.project-card-category {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: var(--space-xs) var(--space-md);
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  color: var(--color-text);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
}

[data-theme="dark"] .project-card-category {
  background-color: rgba(28, 28, 30, 0.8);
  color: var(--color-text);
}

.project-card-body {
  padding: var(--space-xl);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-card-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.project-card-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-md);
  flex: 1;
}

.project-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.project-card-tag {
  padding: 4px 10px;
  font-size: var(--font-size-xs);
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  border-radius: var(--radius-full);
}

.project-card-footer {
  display: flex;
  gap: var(--space-sm);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
}

.project-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-primary);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.project-card-link:hover {
  background-color: var(--color-primary-light);
}

.project-card-link svg {
  width: 16px;
  height: 16px;
}

/* ===== 兴趣爱好 ===== */
.hobbies-section {
  padding: var(--space-3xl) 0;
  background-color: var(--color-bg-secondary);
}

.hobbies-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.hobby-card {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-base);
  border: 1px solid var(--color-border-light);
}

[data-theme="dark"] .hobby-card {
  background-color: var(--color-bg-tertiary);
  border-color: var(--color-border);
}

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

.hobby-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  border-radius: 16px;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, rgba(88, 86, 214, 0.1) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  transition: all var(--transition-base);
}

.hobby-card:hover .hobby-icon {
  transform: scale(1.1);
}

.hobby-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.hobby-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ===== 荣誉奖项 ===== */
.awards-section {
  padding: var(--space-3xl) 0;
  background-color: var(--color-bg-secondary);
}

.awards-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
}

.award-card {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
  flex: 0 1 320px;
  max-width: 100%;
}

[data-theme="dark"] .award-card {
  background-color: var(--color-bg-tertiary);
}

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

.award-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-md);
  border-radius: 50%;
  background: linear-gradient(135deg, #FF9500 0%, #FF3B30 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.award-icon svg {
  width: 28px;
  height: 28px;
}

.award-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.award-org {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.award-year {
  font-size: var(--font-size-xs);
  color: var(--color-primary);
  font-weight: 600;
}

.award-desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
}

/* ===== 联系区域 ===== */
.contact-section {
  padding: var(--space-3xl) 0;
}

.contact-card {
  max-width: 700px;
  margin: 0 auto;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.contact-card h2 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
  position: relative;
  color: white;
}

.contact-card p {
  font-size: var(--font-size-lg);
  opacity: 0.9;
  margin-bottom: var(--space-xl);
  position: relative;
}

.contact-card-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

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

.contact-card .btn-white:hover {
  background-color: #f0f0f0;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.contact-card .btn-outline-white {
  background-color: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.5);
}

.contact-card .btn-outline-white:hover {
  background-color: rgba(255,255,255,0.1);
  border-color: white;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
  .container { padding: 0 var(--space-lg); }
}

@media (max-width: 992px) {
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }

  .resume-hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .resume-hero-avatar {
    justify-self: center;
  }

  .resume-hero-info {
    justify-content: center;
  }

  .resume-hero-actions {
    justify-content: center;
  }

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

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .awards-grid {
    flex-direction: column;
    align-items: center;
  }

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

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 40px;
    --font-size-4xl: 32px;
    --font-size-3xl: 28px;
  }

  .nav-links,
  .nav-actions .theme-toggle {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .section {
    padding: var(--space-2xl) 0;
  }

  .resume-hero-avatar img {
    width: 140px;
    height: 140px;
  }

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

  .stats-grid {
    gap: var(--space-md);
  }

  .stat-card {
    padding: var(--space-lg);
  }

  .stat-number {
    font-size: var(--font-size-3xl);
  }

  .contact-card {
    padding: var(--space-2xl) var(--space-lg);
  }

  .contact-card h2 {
    font-size: var(--font-size-2xl);
  }
}

@media (max-width: 576px) {
  :root {
    --font-size-5xl: 36px;
    --font-size-4xl: 28px;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .awards-grid {
    flex-direction: column;
    align-items: center;
  }

  .hobbies-grid {
    grid-template-columns: 1fr;
  }

  .resume-hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .resume-hero-actions .btn {
    width: 100%;
  }
}

/* ===== 滚动条样式 ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-tertiary);
}

/* ===== 选择文本样式 ===== */
::selection {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}