/* ============================================
   个人简历网站 - 主样式表
   设计风格：现代简约 / 专业感 / 深浅色模式
   ============================================ */

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
    'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  transition: background-color var(--transition-duration) ease,
    color var(--transition-duration) ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

ul,
ol {
  list-style: none;
}

/* ---------- CSS Variables (Light Theme) ---------- */
:root {
  /* Colors */
  --primary: #4F46E5;
  --primary-light: #6366F1;
  --primary-dark: #4338CA;
  --accent: #10B981;
  --accent-light: #34D399;

  /* Backgrounds */
  --bg-primary: #FAFAFA;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #F4F4F5;
  --bg-muted: #F9FAFB;

  /* Text */
  --text-primary: #171717;
  --text-secondary: #52525B;
  --text-muted: #71717A;
  --text-on-primary: #FFFFFF;

  /* Borders */
  --border-color: #E5E7EB;
  --border-light: #F1F5F9;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #4F46E5 0%, #6366F1 100%);
  --gradient-accent: linear-gradient(135deg, #10B981 0%, #34D399 100%);

  /* Typography */
  --font-mono: 'SF Mono', 'Fira Code', 'Roboto Mono', Menlo, monospace;
  --font-size-base: 16px;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-duration: 300ms;
  --transition-timing: cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --container-width: 1200px;
  --navbar-height: 70px;
  --navbar-height-scrolled: 60px;
}

/* ---------- Dark Theme ---------- */
[data-theme="dark"] {
  --bg-primary: #0A0A0A;
  --bg-secondary: #171717;
  --bg-tertiary: #1F1F23;
  --bg-muted: #141417;

  --text-primary: #EDEDED;
  --text-secondary: #A1A1AA;
  --text-muted: #71717A;

  --border-color: #27272A;
  --border-light: #1F1F23;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
}

/* ---------- Utility Classes ---------- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.section-divider {
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  margin: 0 auto var(--spacing-lg);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-duration) var(--transition-timing);
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-on-primary);
  box-shadow: 0 4px 14px 0 rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(79, 70, 229, 0.45);
}

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

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

/* ---------- Page Loader ---------- */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 9999;
  pointer-events: none;
}

.loader-bar {
  width: 0;
  height: 100%;
  background: var(--gradient-primary);
  transition: width 0.6s ease;
}

.page-loader.loaded {
  opacity: 0;
  transition: opacity 0.3s ease 0.3s;
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  z-index: 1000;
  transition: all var(--transition-duration) var(--transition-timing);
  background: transparent;
}

.navbar.scrolled {
  height: var(--navbar-height-scrolled);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .navbar.scrolled {
  background: rgba(10, 10, 10, 0.8);
}

.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

.logo-mark {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
}

.logo-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--spacing-sm) 0;
  transition: color var(--transition-duration) ease;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-duration) ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

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

.icon-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  transition: all var(--transition-duration) ease;
}

.icon-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
}

.icon-sun {
  display: none;
}

[data-theme="dark"] .icon-sun {
  display: block;
}

[data-theme="dark"] .icon-moon {
  display: none;
}

.menu-toggle {
  display: none;
}

.menu-toggle[aria-expanded="true"] .menu-line-1 {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-line-2 {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-line-3 {
  transform: translateY(-6px) rotate(-45deg);
}

.menu-toggle line {
  transition: all var(--transition-duration) ease;
  transform-origin: center;
}

/* ---------- Hero Section ---------- */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--navbar-height);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.hero-greeting {
  font-size: 1.125rem;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.hero-name {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  letter-spacing: -0.02em;
}

.hero-bio {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 500px;
  margin-bottom: var(--spacing-xl);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

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

.hero-social a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--transition-duration) ease;
}

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

.hero-social svg {
  width: 20px;
  height: 20px;
}

/* Hero Visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.avatar-wrapper {
  position: relative;
  width: min(350px, 80vw);
  aspect-ratio: 1;
}

.avatar-ring {
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  background: var(--gradient-primary);
  opacity: 0.15;
  animation: pulse-ring 3s ease-in-out infinite;
}

@keyframes pulse-ring {
  0%, 100% { transform: scale(1); opacity: 0.15; }
  50% { transform: scale(1.05); opacity: 0.25; }
}

.avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg-secondary);
  box-shadow: var(--shadow-xl);
  position: relative;
  z-index: 1;
}

.avatar-glow {
  position: absolute;
  bottom: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 30px;
  background: radial-gradient(ellipse, rgba(79, 70, 229, 0.2) 0%, transparent 70%);
  filter: blur(20px);
  z-index: 0;
}

.floating-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 0.625rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  animation: float 3s ease-in-out infinite;
}

.badge-1 {
  top: 15%;
  right: -10%;
  animation-delay: 0.5s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  animation: bounce 2s infinite;
}

.mouse {
  display: block;
  width: 26px;
  height: 42px;
  border: 2px solid var(--text-muted);
  border-radius: var(--radius-full);
  position: relative;
}

.wheel {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--text-muted);
  border-radius: var(--radius-full);
  animation: scroll-wheel 2s ease-in-out infinite;
}

@keyframes scroll-wheel {
  0% { top: 8px; opacity: 1; }
  100% { top: 24px; opacity: 0; }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

/* ---------- About Section ---------- */
.about-section {
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.about-text p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  white-space: pre-line;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.stat-card {
  padding: var(--spacing-lg);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-duration) ease;
}

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

.stat-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(99, 102, 241, 0.1));
  border-radius: var(--radius-md);
  color: var(--primary);
}

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

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ---------- Skills Section ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

/* 技能 + 雷达图布局 */
.skills-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
  margin-bottom: var(--spacing-3xl);
}

.skills-layout .skills-grid {
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: 0;
}

@media (max-width: 968px) {
  .skills-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 576px) {
  .skills-layout .skills-grid {
    grid-template-columns: 1fr;
  }
}

.skill-category {
  padding: var(--spacing-xl);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-duration) ease;
}

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

.skill-category h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.skill-category h3::before {
  content: '';
  width: 4px;
  height: 20px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.skill-item {
  margin-bottom: var(--spacing-md);
}

.skill-item:last-child {
  margin-bottom: 0;
}

.skill-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--spacing-xs);
}

.skill-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
}

.skill-level {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.skill-bar {
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  width: 0;
  transition: width 1s ease-out;
}

.skill-progress.animate {
  width: var(--progress);
}

.skills-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
}

.skill-tag {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all var(--transition-duration) ease;
}

.skill-tag:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: rgba(79, 70, 229, 0.05);
  transform: translateY(-2px);
}

/* ---------- Timeline (Education & Experience) ---------- */
.education-section {
  background: var(--bg-secondary);
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding-left: var(--spacing-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-2xl);
  padding-left: var(--spacing-xl);
}

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

.timeline-dot {
  position: absolute;
  left: -29px;
  top: 6px;
  width: 18px;
  height: 18px;
  background: var(--bg-secondary);
  border: 3px solid var(--primary);
  border-radius: 50%;
  z-index: 1;
}

.education-section .timeline-dot {
  background: var(--bg-secondary);
}

.timeline-date {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary);
  background: rgba(79, 70, 229, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-mono);
}

.timeline-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  letter-spacing: -0.02em;
}

.timeline-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.timeline-subtitle span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.timeline-description {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.timeline-list {
  list-style: none;
  margin-bottom: var(--spacing-md);
}

.timeline-list li {
  position: relative;
  padding-left: var(--spacing-lg);
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.6;
}

.timeline-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.timeline-tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.625rem;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
}

.timeline-achievements {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.achievement-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.375rem 0.75rem;
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
}

.achievement-badge::before {
  content: '★';
}

/* ---------- Projects Section ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.project-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-duration) ease;
  display: flex;
  flex-direction: column;
}

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

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

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.project-featured {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  padding: 0.25rem 0.625rem;
  background: var(--gradient-accent);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  z-index: 1;
}

.project-body {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.project-description {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
}

.project-tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.625rem;
  background: rgba(79, 70, 229, 0.1);
  color: var(--primary);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
}

.project-links {
  display: flex;
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

.project-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-duration) ease;
}

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

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

/* ---------- Certificates Section ---------- */
.certificates-section {
  background: var(--bg-secondary);
}

.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.certificate-card {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-duration) ease;
}

.certificate-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.certificate-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.25rem;
}

.certificate-icon.cert {
  background: rgba(79, 70, 229, 0.1);
  color: var(--primary);
}

.certificate-icon.award {
  background: rgba(245, 158, 11, 0.1);
  color: #F59E0B;
}

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

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

.certificate-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  line-height: 1.4;
}

.certificate-issuer {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.certificate-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.certificate-description {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ---------- Contact Section ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contact-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  padding: var(--spacing-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-duration) ease;
}

.contact-item:hover {
  border-color: var(--primary);
  transform: translateX(4px);
}

.contact-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(79, 70, 229, 0.1);
  color: var(--primary);
  border-radius: var(--radius-md);
}

.contact-icon svg {
  width: 22px;
  height: 22px;
}

.contact-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.contact-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.contact-value {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  word-break: break-all;
}

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

.contact-social {
  padding: var(--spacing-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

.contact-social-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.contact-social-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.contact-social-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.5rem 0.875rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--transition-duration) ease;
}

.contact-social-link:hover {
  background: rgba(79, 70, 229, 0.1);
  color: var(--primary);
  transform: translateY(-2px);
}

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

/* Contact Form */
.contact-form {
  padding: var(--spacing-xl);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

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

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

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-duration) ease;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

/* ---------- Footer ---------- */
.footer {
  padding: var(--spacing-xl) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.footer-container {
  text-align: center;
}

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

.footer-copyright {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-icp {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---------- Back to Top ---------- */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-duration) ease;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(79, 70, 229, 0.4);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

/* ---------- Scroll Reveal Animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .badge-1 {
    right: 0;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }

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

  /* Navbar Mobile */
  .nav-menu {
    position: fixed;
    top: var(--navbar-height-scrolled);
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-duration) ease;
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    display: block;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
  }

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

  .nav-link::after {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  /* Hero Mobile */
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-2xl);
  }

  .hero-bio {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions,
  .hero-social {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .avatar-wrapper {
    width: min(250px, 60vw);
  }

  .badge-1 {
    top: auto;
    bottom: -10px;
    right: 50%;
    transform: translateX(50%);
  }

  @keyframes float {
    0%, 100% { transform: translateX(50%) translateY(0); }
    50% { transform: translateX(50%) translateY(-10px); }
  }

  /* Skills Mobile */
  .skills-grid {
    grid-template-columns: 1fr;
  }

  /* Projects Mobile */
  .projects-grid {
    grid-template-columns: 1fr;
  }

  /* Form Mobile */
  .form-row {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

  .back-to-top {
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 42px;
    height: 42px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

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

  .stat-card {
    padding: var(--spacing-md);
  }

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

  .contact-form {
    padding: var(--spacing-lg);
  }
}

/* ============================================
   增强特效 - 音频主题 + 高级动效
   ============================================ */

/* ---------- 声波背景 ---------- */
.soundwave-bg {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 200px;
  overflow: hidden;
  pointer-events: none;
  opacity: 0.4;
}

.soundwave-bg svg {
  width: 200%;
  height: 100%;
  animation: soundwave-move 8s ease-in-out infinite;
}

@keyframes soundwave-move {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(-25%); }
}

/* Hero 声波装饰 */
.hero-soundwaves {
  position: absolute;
  right: -100px;
  top: 50%;
  transform: translateY(-50%);
  width: 500px;
  height: 500px;
  pointer-events: none;
  opacity: 0.15;
}

.hero-soundwaves .wave-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 2px solid var(--primary);
  border-radius: 50%;
  animation: wave-expand 4s ease-out infinite;
}

.hero-soundwaves .wave-ring:nth-child(1) { width: 100px; height: 100px; animation-delay: 0s; }
.hero-soundwaves .wave-ring:nth-child(2) { width: 200px; height: 200px; animation-delay: 0.8s; }
.hero-soundwaves .wave-ring:nth-child(3) { width: 300px; height: 300px; animation-delay: 1.6s; }
.hero-soundwaves .wave-ring:nth-child(4) { width: 400px; height: 400px; animation-delay: 2.4s; }
.hero-soundwaves .wave-ring:nth-child(5) { width: 500px; height: 500px; animation-delay: 3.2s; }

@keyframes wave-expand {
  0% { opacity: 1; transform: translate(-50%, -50%) scale(0.8); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1.2); }
}

/* 头像声波脉冲 */
.avatar-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--gradient-primary);
  animation: avatar-pulse 3s ease-in-out infinite;
  z-index: -1;
}

@keyframes avatar-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.3; }
  50% { transform: translate(-50%, -50%) scale(1.15); opacity: 0.1; }
}

/* ---------- 渐变文字 ---------- */
.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, #8B5CF6 50%, #EC4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- 打字机光标 ---------- */
.typing-cursor {
  display: inline-block;
  width: 3px;
  height: 1em;
  background: var(--primary);
  margin-left: 4px;
  vertical-align: text-bottom;
  animation: cursor-blink 1s step-end infinite;
}

@keyframes cursor-blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* ---------- 玻璃态效果 ---------- */
.glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] .glass {
  background: rgba(23, 23, 23, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* 玻璃态卡片 */
.glass-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-duration) var(--transition-timing);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity var(--transition-duration);
}

.glass-card:hover::before {
  opacity: 0.6;
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

/* ---------- 3D 卡片倾斜效果 ---------- */
.tilt-card {
  transform-style: preserve-3d;
  transition: transform 0.3s ease;
  will-change: transform;
}

.tilt-card .tilt-content {
  transform: translateZ(30px);
}

/* 卡片光效 */
.card-shine {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.3) 0%,
    rgba(255, 255, 255, 0) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  opacity: 0;
  transition: opacity var(--transition-duration);
  pointer-events: none;
  z-index: 10;
}

.glass-card:hover .card-shine {
  opacity: 1;
}

/* ---------- 数字滚动动画 ---------- */
.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ---------- 求职意向 ---------- */
.career-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.career-info {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.career-card {
  padding: 1.5rem;
  text-align: left;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.career-card:hover {
  transform: translateY(-4px);
}

.career-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.875rem;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
}

.career-icon svg {
  width: 20px;
  height: 20px;
}

.career-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
  font-weight: 500;
}

.career-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}

.career-highlights {
  padding: 2rem;
}

.career-highlights h3 {
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
  font-weight: 700;
}

.highlight-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.highlight-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.5rem 0;
  color: var(--text-primary);
  line-height: 1.6;
}

.highlight-dot {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 0.55rem;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

@media (max-width: 900px) {
  .career-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .career-info {
    grid-template-columns: 1fr;
  }
}

/* ---------- 技能雷达图 ---------- */
.skill-radar-container {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.skill-radar {
  position: relative;
  width: 300px;
  height: 300px;
}

.skill-radar svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.radar-polygon {
  fill: url(#radarGradient);
  fill-opacity: 0.3;
  stroke: var(--primary);
  stroke-width: 2;
  transition: all 1s ease-out;
}

.radar-grid line {
  stroke: var(--border-color);
  stroke-width: 1;
}

.radar-grid circle {
  fill: none;
  stroke: var(--border-color);
  stroke-width: 1;
  stroke-dasharray: 4 4;
}

.radar-labels text {
  fill: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
}

/* ---------- 时间轴增强 ---------- */
.timeline-item {
  position: relative;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -33px;
  top: 24px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg-primary);
  z-index: 2;
  transition: all var(--transition-duration);
}

.timeline-item:hover::before {
  transform: scale(1.3);
  box-shadow: 0 0 0 8px rgba(79, 70, 229, 0.2);
}

.timeline-item.active::before {
  background: var(--gradient-primary);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.2);
}

/* 时间轴连接线动画 */
.timeline::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-fill {
  position: absolute;
  left: -28px;
  top: 0;
  width: 2px;
  background: var(--gradient-primary);
  height: 0;
  transition: height 1.5s ease-out;
}

/* ---------- 浮动元素 ---------- */
.float-element {
  animation: float 6s ease-in-out infinite;
}

.float-element:nth-child(odd) {
  animation-delay: -3s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

/* ---------- 项目筛选标签 ---------- */
.project-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-2xl);
}

.filter-btn {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  transition: all var(--transition-duration);
  cursor: pointer;
}

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

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

/* ---------- 返回顶部按钮增强 ---------- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-duration);
  box-shadow: var(--shadow-lg);
  z-index: 100;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-duration);
}

.back-to-top:hover svg {
  transform: translateY(-2px);
}

/* ---------- 滚动进度条 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--gradient-primary);
  z-index: 1000;
  transition: width 0.1s linear;
}

/* ---------- Hero 区域增强 ---------- */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(79, 70, 229, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.06) 0%, transparent 40%),
    radial-gradient(circle at 40% 80%, rgba(139, 92, 246, 0.06) 0%, transparent 45%);
  pointer-events: none;
}

.hero-grid-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(79, 70, 229, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 70, 229, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-name {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  position: relative;
}

.hero-title-typing {
  display: flex;
  align-items: center;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: var(--spacing-lg);
  min-height: 2.5rem;
}

/* ---------- 技能条增强 ---------- */
.skill-bar-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  width: 0;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.skill-bar-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: bar-shine 2s ease-in-out infinite;
}

@keyframes bar-shine {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ---------- 联系方式卡片增强 ---------- */
.contact-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-duration);
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-primary);
  transform: scaleY(0);
  transition: transform var(--transition-duration);
}

.contact-card:hover::before {
  transform: scaleY(1);
}

.contact-card:hover {
  transform: translateX(8px);
  border-color: var(--primary-light);
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 22px;
  height: 22px;
}

/* ---------- 社交图标悬浮增强 ---------- */
.social-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  transition: all var(--transition-duration);
  position: relative;
}

.social-icon::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 50%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-duration);
}

.social-icon:hover::before {
  opacity: 1;
}

.social-icon svg {
  width: 18px;
  height: 18px;
  position: relative;
  z-index: 1;
  transition: all var(--transition-duration);
}

.social-icon:hover {
  color: white;
  transform: translateY(-3px);
}

/* ---------- 标签增强 ---------- */
.skill-tag {
  display: inline-block;
  padding: 0.4rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  transition: all var(--transition-duration);
  cursor: default;
}

.skill-tag:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-2px);
}

/* ---------- 荣誉徽章 ---------- */
.honor-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.6rem;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #FCD34D, #F59E0B);
  color: #78350F;
}

/* ---------- 表单增强 ---------- */
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: all var(--transition-duration);
  font-family: inherit;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
  background: var(--bg-secondary);
}

/* ---------- 页脚装饰 ---------- */
.footer-wave {
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.footer-wave svg {
  display: block;
  width: 100%;
  height: 60px;
}

/* ---------- 响应式补充 ---------- */
@media (max-width: 768px) {
  .hero-soundwaves {
    display: none;
  }
  
  .skill-radar {
    width: 250px;
    height: 250px;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .back-to-top {
    bottom: 1rem;
    right: 1rem;
    width: 42px;
    height: 42px;
  }
}

/* ---------- 减少动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- 项目卡片图片遮罩 ---------- */
.project-image-wrapper {
  position: relative;
  overflow: hidden;
}

.project-image-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    180deg,
    transparent 50%,
    rgba(0, 0, 0, 0.6) 100%
  );
  opacity: 0;
  transition: opacity var(--transition-duration);
}

.glass-card:hover .project-image-wrapper::after {
  opacity: 1;
}

.project-image-wrapper img {
  transition: transform 0.5s var(--transition-timing);
}

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

/* ---------- 精选徽章 ---------- */
.featured-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.3rem 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: white;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  z-index: 5;
  text-transform: uppercase;
  box-shadow: var(--shadow-md);
}

/* ---------- 导航栏下划线效果 ---------- */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-duration);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* ---------- 关于我装饰线 ---------- */
.about-highlight {
  position: relative;
  display: inline-block;
}

.about-highlight::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  height: 8px;
  background: linear-gradient(120deg, rgba(79, 70, 229, 0.2), rgba(16, 185, 129, 0.2));
  border-radius: 4px;
  z-index: -1;
}

/* ---------- 技能卡片图标增强 ---------- */
.skill-category-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(16, 185, 129, 0.1));
  color: var(--primary);
  transition: all var(--transition-duration);
}

.glass-card:hover .skill-category-icon {
  transform: scale(1.1) rotate(-5deg);
  background: var(--gradient-primary);
  color: white;
}

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