/* ============================================
   卓海文 · AI视觉设计师 作品集
   暗色科技风 · 响应式
   ============================================ */

/* ---------- CSS变量 / 设计令牌 ---------- */
:root {
  /* 色彩系统 */
  --bg-primary: #0a0e1a;
  --bg-secondary: #0d1320;
  --bg-card: #111827;
  --bg-card-hover: #1a2235;
  --bg-elevated: #161d2e;

  --accent-blue: #3b82f6;
  --accent-blue-light: #60a5fa;
  --accent-blue-dim: rgba(59, 130, 246, 0.15);
  --accent-orange: #e96f03;
  --accent-orange-light: #f59e0b;

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-faint: #475569;

  --border-subtle: #1e293b;
  --border-medium: #334155;
  --border-glow: rgba(59, 130, 246, 0.3);

  /* 字体 */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
    'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  /* 间距基准 8px */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

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

  /* 动效 */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* 布局 */
  --container-max: 100%;
  --container-padding: 48px;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  /* 多层固定背景：噪声纹理 + 细网格 + 三处径向光晕 */
  background-image:
    /* 极淡噪声纹理（最上层，增加胶片质感） */
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='256' height='256'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E"),
    /* 细网格横线 */
    linear-gradient(rgba(59, 130, 246, 0.018) 1px, transparent 1px),
    /* 细网格竖线 */
    linear-gradient(90deg, rgba(59, 130, 246, 0.018) 1px, transparent 1px),
    /* 顶部蓝色光晕 */
    radial-gradient(ellipse 70% 45% at 15% 0%, rgba(59, 130, 246, 0.09) 0%, transparent 60%),
    /* 右上橙铜光晕（呼应品牌色） */
    radial-gradient(ellipse 50% 35% at 85% 20%, rgba(233, 111, 3, 0.06) 0%, transparent 55%),
    /* 底部蓝色光晕 */
    radial-gradient(ellipse 65% 40% at 50% 100%, rgba(59, 130, 246, 0.06) 0%, transparent 60%);
  background-size:
    256px 256px,
    72px 72px,
    72px 72px,
    100% 100%,
    100% 100%,
    100% 100%;
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

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

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

a:hover {
  color: var(--accent-blue-light);
}

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

ul,
ol {
  list-style: none;
}

/* ---------- 通用容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ---------- 页面加载幕布 ---------- */
.page-curtain {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 9999;
  transform: translateY(0);
  will-change: transform;
  pointer-events: none;
}

/* ---------- 滚动进度条 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  z-index: 1000;
  background: transparent;
}

.scroll-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-blue-light), var(--accent-orange));
  will-change: width;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.5);
}

/* ---------- 视差图片容器 ---------- */
.parallax-wrap {
  overflow: hidden;
  position: relative;
}

.parallax-wrap img {
  will-change: transform;
  transform: scale(1.15);
}

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

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-blue-light);
  margin-bottom: var(--space-md);
}

.section-label::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--accent-blue);
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: var(--space-xl);
}

/* ---------- 滚动显现动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

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

/* ============================================
   入口页 index.html
   ============================================ */
.entry-page {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg-primary);
}

#entry-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.entry-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, transparent 0%, rgba(10, 14, 26, 0.6) 70%, rgba(10, 14, 26, 0.95) 100%);
  z-index: 2;
  pointer-events: none;
}

.entry-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: var(--space-lg);
  max-width: 800px;
}

.entry-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-blue-light);
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.2s forwards;
}

.entry-title {
  font-size: clamp(40px, 8vw, 88px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--space-md);
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.4s forwards;
}

.entry-title .highlight {
  background: linear-gradient(135deg, var(--accent-blue-light), var(--accent-orange-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.entry-subtitle {
  font-size: clamp(15px, 2vw, 19px);
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2xl);
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.6s forwards;
}

.entry-subtitle span {
  color: var(--text-muted);
  margin: 0 var(--space-sm);
}

.entry-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 16px 40px;
  background: linear-gradient(135deg, var(--accent-blue), #2563eb);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.3), 0 8px 32px rgba(59, 130, 246, 0.25);
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.8s forwards;
  overflow: hidden;
  isolation: isolate;
}

.entry-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-orange), #c2410c);
  transform: translateX(-101%);
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: -1;
}

.entry-cta:hover::before {
  transform: translateX(0);
}

.entry-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(233, 111, 3, 0.5), 0 12px 40px rgba(233, 111, 3, 0.4);
  color: #fff;
}

.entry-cta svg {
  transition: transform var(--transition-base);
}

.entry-cta:hover svg {
  transform: translateX(4px);
}

.entry-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0;
  animation: fadeInUp 0.8s ease 1.2s forwards, bounce 2s ease-in-out 2s infinite;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================
   作品集页 portfolio.html
   ============================================ */

/* ---------- 导航栏 ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  transition: all var(--transition-base);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 14, 26, 0.72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.35);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.nav-logo-mark {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  color: #fff;
}

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

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: var(--space-sm) 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-blue);
  transition: width var(--transition-base);
}

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

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

.nav-cta {
  position: relative;
  padding: 10px 22px;
  background: var(--accent-blue-dim);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-blue-light) !important;
  transition: color var(--transition-base), border-color var(--transition-base);
  overflow: hidden;
  isolation: isolate;
}

.nav-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-blue), #2563eb);
  transform: translateX(-101%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: -1;
}

.nav-cta:hover::before {
  transform: translateX(0);
}

.nav-cta:hover {
  border-color: var(--accent-blue);
  color: #fff !important;
}

.nav-cta::after { display: none !important; }

/* 移动端汉堡菜单 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 101;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero首屏 ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-height);
  background-image: url('../assets/images/hero-bg.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

/* 渐变遮罩：保证左侧文字区可读性，同时保留背景图视觉 */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg,
      rgba(10, 14, 26, 0.88) 0%,
      rgba(10, 14, 26, 0.55) 35%,
      rgba(10, 14, 26, 0.2) 60%,
      rgba(10, 14, 26, 0.35) 100%),
    linear-gradient(180deg,
      rgba(10, 14, 26, 0.4) 0%,
      transparent 25%,
      transparent 65%,
      rgba(10, 14, 26, 0.6) 100%);
  pointer-events: none;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.3;
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  opacity: 0.6;
}

.hero-glow {
  display: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-blue-light);
  margin-bottom: var(--space-lg);
}

.hero-eyebrow .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.6);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(40px, 7.5vw, 96px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--space-lg);
}

.hero-title .line-mask {
  display: block;
  overflow: hidden;
}

.hero-title .line {
  display: block;
  will-change: transform;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--accent-blue-light) 0%, #a78bfa 50%, var(--accent-orange-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: clamp(15px, 1.8vw, 18px);
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}

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

.btn-primary {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--accent-blue), #2563eb);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
  overflow: hidden;
  isolation: isolate;
}

/* 悬浮颜色替换层：从左滑入橙铜色渐变 */
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-orange), #c2410c);
  transform: translateX(-101%);
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: -1;
}

.btn-primary:hover::before {
  transform: translateX(0);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(233, 111, 3, 0.45);
  color: #fff;
}

.btn-secondary {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  background: transparent;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), border-color var(--transition-base), color var(--transition-base);
  overflow: hidden;
  isolation: isolate;
}

/* 悬浮颜色替换层：从左滑入蓝色填充 */
.btn-secondary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-blue), #1d4ed8);
  transform: translateX(-101%);
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: -1;
}

.btn-secondary:hover::before {
  transform: translateX(0);
}

.btn-secondary:hover {
  border-color: var(--accent-blue);
  color: #fff;
  transform: translateY(-2px);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-blue), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- 个人经历 About ---------- */
.about {
  background: transparent;
  position: relative;
}

.about::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-medium), transparent);
}

.about-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.about-visual {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-xl));
}

.about-avatar-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3/4;
  border: 1px solid var(--border-subtle);
}

.about-avatar-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10, 14, 26, 0.6) 100%);
  pointer-events: none;
}

.about-avatar-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-avatar-frame {
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.4), transparent 40%, transparent 60%, rgba(233, 111, 3, 0.3)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.about-status {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.about-status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.5);
  flex-shrink: 0;
}

.about-status-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.about-status-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

.about-content h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}

.about-bio {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-xl);
}

.about-bio p + p {
  margin-top: var(--space-md);
}

/* 数据统计 */
.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.stat-card {
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.stat-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.stat-number {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent-blue-light), var(--accent-orange-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* 联系方式 */
.about-contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.contact-item:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}

.contact-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--accent-blue-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent-blue-light);
}

.contact-info {
  display: flex;
  flex-direction: column;
}

.contact-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.contact-value {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
}

/* 教育 & 技能标签 */
.about-meta {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
}

.about-meta-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.about-meta-row:last-child {
  margin-bottom: 0;
}

.about-meta-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  min-width: 80px;
  padding-top: 2px;
}

.about-meta-value {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.about-meta-value strong {
  color: var(--text-primary);
  font-weight: 600;
}

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

.skill-tag {
  padding: 6px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 12px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue-light);
}

/* ---------- 精选项目 Works ---------- */
.works {
  position: relative;
}

.works-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
}

.work-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  overflow: hidden;
  position: relative;
}

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

.work-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.work-card:hover::before {
  opacity: 1;
}

.work-card.reverse {
  grid-template-columns: 1fr 1.2fr;
}

.work-card.reverse .work-media {
  order: 2;
}

.work-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/10;
  border: 1px solid var(--border-subtle);
}

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

.work-card:hover .work-media img {
  transform: scale(1.04);
}

.work-media-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(10, 14, 26, 0.7) 100%);
  pointer-events: none;
}

.work-media-count {
  position: absolute;
  bottom: 16px;
  right: 16px;
  padding: 6px 14px;
  background: rgba(10, 14, 26, 0.8);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  z-index: 2;
}

.work-info {
  display: flex;
  flex-direction: column;
}

.work-index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-blue-light);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.work-title {
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: var(--space-md);
}

.work-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.work-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.work-tag {
  padding: 5px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.work-results {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--accent-blue);
}

.work-result-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 13px;
  color: var(--text-secondary);
}

.work-result-item svg {
  flex-shrink: 0;
  color: var(--accent-blue-light);
}

.work-result-item strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* 无图项目卡片 */
.work-card-textonly {
  grid-template-columns: 1fr;
  text-align: center;
  padding: var(--space-2xl);
}

.work-card-textonly .work-info {
  align-items: center;
  text-align: center;
}

.work-card-textonly .work-desc {
  max-width: 560px;
}

.work-placeholder-visual {
  width: 100%;
  max-width: 480px;
  height: 200px;
  margin: 0 auto var(--space-xl);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(233, 111, 3, 0.08), rgba(46, 139, 87, 0.08)),
    var(--bg-elevated);
  border: 1px dashed var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-md);
  color: var(--text-muted);
}

.work-placeholder-visual svg {
  opacity: 0.5;
}

.work-placeholder-visual span {
  font-size: 13px;
  letter-spacing: 0.05em;
}

/* ---------- 个人优势 Advantages ---------- */
.advantages {
  background: transparent;
  position: relative;
}

.advantages::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-medium), transparent);
}

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

.advantage-card {
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.advantage-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  background: var(--bg-card-hover);
}

.advantage-card:hover::before {
  transform: scaleX(1);
}

.advantage-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--accent-blue-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  color: var(--accent-blue-light);
  transition: all var(--transition-base);
}

.advantage-card:hover .advantage-icon {
  background: var(--accent-blue);
  color: #fff;
  transform: scale(1.05);
}

.advantage-title {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.advantage-subtitle {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-orange-light);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.advantage-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.advantage-tools {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.advantage-tool {
  padding: 4px 10px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

/* ---------- 联系 / 页尾 Contact ---------- */
.contact {
  position: relative;
  padding: var(--space-3xl) 0 var(--space-xl);
  overflow: hidden;
}

.contact-bg-glow {
  position: absolute;
  width: 800px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
}

.contact-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.contact-eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-blue-light);
  margin-bottom: var(--space-md);
}

.contact-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

.contact-title .gradient-text {
  background: linear-gradient(135deg, var(--accent-blue-light), var(--accent-orange-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.contact-desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}

.contact-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.contact-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  max-width: 640px;
  margin: 0 auto;
}

.contact-card {
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-align: left;
}

.contact-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.contact-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-blue-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent-blue-light);
}

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

.contact-card-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2px;
}

.contact-card-value {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
  word-break: break-all;
}

/* 页脚 */
.footer {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-left {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-left strong {
  color: var(--text-secondary);
  font-weight: 600;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.footer-right a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-right a:hover {
  color: var(--accent-blue-light);
}

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition-base);
  cursor: pointer;
}

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

.back-to-top:hover {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #fff;
  transform: translateY(-2px);
}

/* ============================================
   BorderGlow 模块卡片 — 鼠标边缘发光边框
   适配品牌色：蓝 #3b82f6 / 橙 #e96f03 / 浅蓝 #60a5fa
   ============================================ */
.border-glow-card {
  --edge-proximity: 0;
  --cursor-angle: 45deg;
  --edge-sensitivity: 25;
  --color-sensitivity: calc(var(--edge-sensitivity) + 20);
  --border-radius: 24px;
  --glow-padding: 36px;
  --cone-spread: 22;
  --card-bg: rgba(17, 24, 39, 0.55);
  --fill-opacity: 0.45;

  /* mesh 渐变边框：7 处径向渐变分布 */
  --gradient-one: radial-gradient(at 80% 55%, #3b82f6 0px, transparent 50%);
  --gradient-two: radial-gradient(at 69% 34%, #e96f03 0px, transparent 50%);
  --gradient-three: radial-gradient(at 8% 6%, #60a5fa 0px, transparent 50%);
  --gradient-four: radial-gradient(at 41% 38%, #3b82f6 0px, transparent 50%);
  --gradient-five: radial-gradient(at 86% 85%, #e96f03 0px, transparent 50%);
  --gradient-six: radial-gradient(at 82% 18%, #60a5fa 0px, transparent 50%);
  --gradient-seven: radial-gradient(at 51% 4%, #e96f03 0px, transparent 50%);
  --gradient-base: linear-gradient(#3b82f6 0 100%);

  /* 外部发光颜色：电光蓝 */
  --glow-color: hsl(217deg 91% 60% / 100%);
  --glow-color-60: hsl(217deg 91% 60% / 60%);
  --glow-color-50: hsl(217deg 91% 60% / 50%);
  --glow-color-40: hsl(217deg 91% 60% / 40%);
  --glow-color-30: hsl(217deg 91% 60% / 30%);
  --glow-color-20: hsl(217deg 91% 60% / 20%);
  --glow-color-10: hsl(217deg 91% 60% / 10%);

  position: relative;
  border-radius: var(--border-radius);
  isolation: isolate;
  transform: translate3d(0, 0, 0.01px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--card-bg);
  overflow: visible;
  padding: var(--space-xl) var(--space-lg);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.border-glow-card::before,
.border-glow-card::after,
.border-glow-card > .edge-light {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  transition: opacity 0.25s ease-out;
  z-index: 0;
  pointer-events: none;
}

.border-glow-card:not(:hover)::before,
.border-glow-card:not(:hover)::after,
.border-glow-card:not(:hover) > .edge-light {
  opacity: 0;
  transition: opacity 0.75s ease-in-out;
}

/* 彩色 mesh 渐变边框（鼠标方向锥形遮罩） */
.border-glow-card::before {
  border: 1px solid transparent;
  background:
    linear-gradient(var(--card-bg) 0 100%) padding-box,
    linear-gradient(rgba(255,255,255,0) 0% 100%) border-box,
    var(--gradient-one) border-box,
    var(--gradient-two) border-box,
    var(--gradient-three) border-box,
    var(--gradient-four) border-box,
    var(--gradient-five) border-box,
    var(--gradient-six) border-box,
    var(--gradient-seven) border-box,
    var(--gradient-base) border-box;

  opacity: calc((var(--edge-proximity) - var(--color-sensitivity)) / (100 - var(--color-sensitivity)));

  -webkit-mask-image:
    conic-gradient(
      from var(--cursor-angle) at center,
      black calc(var(--cone-spread) * 1%),
      transparent calc((var(--cone-spread) + 15) * 1%),
      transparent calc((100 - var(--cone-spread) - 15) * 1%),
      black calc((100 - var(--cone-spread)) * 1%)
    );
  mask-image:
    conic-gradient(
      from var(--cursor-angle) at center,
      black calc(var(--cone-spread) * 1%),
      transparent calc((var(--cone-spread) + 15) * 1%),
      transparent calc((100 - var(--cone-spread) - 15) * 1%),
      black calc((100 - var(--cone-spread)) * 1%)
    );
}

/* 内部边缘彩色填充（soft-light 混合） */
.border-glow-card::after {
  border: 1px solid transparent;
  background:
    var(--gradient-one) padding-box,
    var(--gradient-two) padding-box,
    var(--gradient-three) padding-box,
    var(--gradient-four) padding-box,
    var(--gradient-five) padding-box,
    var(--gradient-six) padding-box,
    var(--gradient-seven) padding-box,
    var(--gradient-base) padding-box;

  -webkit-mask-image:
    linear-gradient(to bottom, black, black),
    radial-gradient(ellipse at 50% 50%, black 40%, transparent 65%),
    radial-gradient(ellipse at 66% 66%, black 5%, transparent 40%),
    radial-gradient(ellipse at 33% 33%, black 5%, transparent 40%),
    radial-gradient(ellipse at 66% 33%, black 5%, transparent 40%),
    radial-gradient(ellipse at 33% 66%, black 5%, transparent 40%),
    conic-gradient(from var(--cursor-angle) at center, transparent 5%, black 15%, black 85%, transparent 95%);
  -webkit-mask-composite: source-out, source-over, source-over, source-over, source-over, source-over;
  mask-image:
    linear-gradient(to bottom, black, black),
    radial-gradient(ellipse at 50% 50%, black 40%, transparent 65%),
    radial-gradient(ellipse at 66% 66%, black 5%, transparent 40%),
    radial-gradient(ellipse at 33% 33%, black 5%, transparent 40%),
    radial-gradient(ellipse at 66% 33%, black 5%, transparent 40%),
    radial-gradient(ellipse at 33% 66%, black 5%, transparent 40%),
    conic-gradient(from var(--cursor-angle) at center, transparent 5%, black 15%, black 85%, transparent 95%);
  mask-composite: subtract, add, add, add, add, add;

  opacity: calc(var(--fill-opacity) * (var(--edge-proximity) - var(--color-sensitivity)) / (100 - var(--color-sensitivity)));
  mix-blend-mode: soft-light;
}

/* 外部发光层（plus-lighter 混合） */
.border-glow-card > .edge-light {
  inset: calc(var(--glow-padding) * -1);
  z-index: 0;

  -webkit-mask-image:
    conic-gradient(
      from var(--cursor-angle) at center, black 2.5%, transparent 10%, transparent 90%, black 97.5%
    );
  mask-image:
    conic-gradient(
      from var(--cursor-angle) at center, black 2.5%, transparent 10%, transparent 90%, black 97.5%
    );

  opacity: calc((var(--edge-proximity) - var(--edge-sensitivity)) / (100 - var(--edge-sensitivity)));
  mix-blend-mode: plus-lighter;
}

.border-glow-card > .edge-light::before {
  content: "";
  position: absolute;
  inset: var(--glow-padding);
  border-radius: inherit;
  box-shadow:
    inset 0 0 0 1px var(--glow-color),
    inset 0 0 1px 0 var(--glow-color-60),
    inset 0 0 3px 0 var(--glow-color-50),
    inset 0 0 6px 0 var(--glow-color-40),
    inset 0 0 15px 0 var(--glow-color-30),
    inset 0 0 25px 2px var(--glow-color-20),
    inset 0 0 50px 2px var(--glow-color-10),
    0 0 1px 0 var(--glow-color-60),
    0 0 3px 0 var(--glow-color-50),
    0 0 6px 0 var(--glow-color-40),
    0 0 15px 0 var(--glow-color-30),
    0 0 25px 2px var(--glow-color-20),
    0 0 50px 2px var(--glow-color-10);
}

.border-glow-inner {
  position: relative;
  z-index: 1;
}

/* ============================================
   作品图片画廊
   ============================================ */

.gallery-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.gallery-overlay.active {
  opacity: 1;
  visibility: visible;
}

.gallery-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 8, 15, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.gallery-container {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 33vh;
  max-height: 420px;
  display: flex;
  flex-direction: column;
  padding: 0 var(--container-padding);
}

.gallery-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-shrink: 0;
}

.gallery-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.gallery-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.gallery-close:hover {
  background: var(--accent-orange);
  border-color: var(--accent-orange);
  color: #fff;
  transform: rotate(90deg);
}

.gallery-track {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 14px;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 8px 4px 16px;
  -webkit-overflow-scrolling: touch;
}

/* 隐藏滚动条但保留功能 */
.gallery-track::-webkit-scrollbar {
  height: 4px;
}

.gallery-track::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 2px;
}

.gallery-track::-webkit-scrollbar-thumb {
  background: rgba(96, 165, 250, 0.4);
  border-radius: 2px;
}

.gallery-track::-webkit-scrollbar-thumb:hover {
  background: rgba(96, 165, 250, 0.7);
}

.gallery-item {
  flex: 0 0 auto;
  height: 100%;
  scroll-snap-align: start;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  position: relative;
  will-change: transform, opacity;
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: inherit;
  pointer-events: none;
}

.gallery-item img {
  height: 100%;
  width: auto;
  object-fit: cover;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
}

.gallery-hint {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 12px;
  letter-spacing: 0.05em;
  flex-shrink: 0;
  opacity: 0.6;
}

/* 可点击的作品卡片 */
.work-card[data-gallery] {
  cursor: pointer;
}

.work-card[data-gallery] .work-media::after {
  content: '点击查看全部 12 张';
  position: absolute;
  bottom: 16px;
  right: 16px;
  padding: 6px 14px;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(96, 165, 250, 0.3);
  border-radius: 20px;
  font-size: 12px;
  color: var(--accent-blue-light);
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.35s ease;
  z-index: 3;
  pointer-events: none;
}

.work-card[data-gallery]:hover .work-media::after {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   响应式
   ============================================ */

/* 平板 */
@media (max-width: 1024px) {
  .container,
  .nav-inner,
  .hero-content {
    padding: 0 32px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .about-visual {
    position: static;
    max-width: 320px;
    margin: 0 auto;
  }

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

  .work-card,
  .work-card.reverse {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .work-card.reverse .work-media {
    order: 0;
  }

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

/* 移动端 */
@media (max-width: 768px) {
  :root {
    --space-3xl: 64px;
    --space-2xl: 48px;
  }

  .container,
  .nav-inner,
  .hero-content {
    padding: 0 20px;
  }

  /* BorderGlow 卡片移动端内边距收紧 */
  .border-glow-card {
    padding: var(--space-lg) var(--space-md);
    --glow-padding: 24px;
  }

  /* Hero背景图在移动端改用scroll，避免fixed渲染问题 */
  .hero {
    background-attachment: scroll;
    background-position: 65% center;
  }

  /* 导航 */
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-subtle);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-lg);
    transition: right var(--transition-base);
    z-index: 100;
    padding: var(--space-xl);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links a {
    font-size: 16px;
  }

  .nav-toggle {
    display: flex;
  }

  /* Hero */
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-primary,
  .btn-secondary {
    justify-content: center;
  }

  /* About */
  .about-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

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

  .stat-number {
    font-size: 26px;
  }

  .about-meta-row {
    flex-direction: column;
    gap: var(--space-xs);
  }

  /* Works */
  .work-card {
    padding: var(--space-md);
  }

  .work-results {
    padding: var(--space-md);
  }

  /* Contact */
  .contact-cards {
    grid-template-columns: 1fr;
  }

  .footer {
    flex-direction: column;
    text-align: center;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
  }
}

/* 小屏手机 */
@media (max-width: 480px) {
  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

  .entry-cta {
    padding: 14px 28px;
  }

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

  .contact-actions .btn-primary,
  .contact-actions .btn-secondary {
    justify-content: center;
  }
}

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

  html {
    scroll-behavior: auto;
  }
}