```css
/* ==== 污视频·影视测评 专业样式表 ==== */
/* 设计原则：真实、专业、深度、可读性优先，兼顾品牌个性与视觉美感 */

/* ===== 1. CSS Variables & Theme Tokens ===== */
:root {
  /* 主色板 —— 深海蓝 + 暖灰，营造专业、理性、深邃的品牌气质 */
  --bg: #f2f5f9;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --text-primary: #1e2b3a;
  --text-secondary: #2c3e50;
  --text-muted: #3a4a5c;
  --heading-color: #16222e;
  --link-color: #1d4ed8;
  --link-hover: #0f3a8c;
  --border-light: #d8e0ea;
  --nav-bg: rgba(255, 255, 255, 0.85);
  --footer-bg: #121c28;
  --footer-text: #d3dee9;
  --card-bg: #ffffff;
  --accent: #1b4a6b;
  --accent-2: #3c6e9c;
  --btn-bg: #1b3b5c;
  --btn-text: #ffffff;
  --shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
  --code-bg: #ecf1f7;
  --hero-gradient: linear-gradient(135deg, #0d2f4f 0%, #1b4a6b 60%, #2a6b8f 100%);
  --card-radius: 20px;
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.3);
  --scrollbar-thumb: #b0c2d4;
  --scrollbar-track: transparent;
  --faq-plus-color: #4a6b8a;
}

/* 暗色模式变量 */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b131c;
    --surface: #17212b;
    --surface-2: #1f2c38;
    --text-primary: #e5e9f0;
    --text-secondary: #d0d9e6;
    --text-muted: #b9c6d6;
    --heading-color: #f0f5fd;
    --link-color: #7ba9f0;
    --link-hover: #a0c5ff;
    --border-light: #2b3a4a;
    --nav-bg: rgba(12, 22, 33, 0.85);
    --footer-bg: #0a1119;
    --footer-text: #d7e2ee;
    --card-bg: #1a2532;
    --accent: #7ea6d0;
    --accent-2: #9db8d8;
    --btn-bg: #2c4e75;
    --btn-text: #ffffff;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.5);
    --code-bg: #1f2c38;
    --hero-gradient: linear-gradient(135deg, #0a1a2a 0%, #1a3045 60%, #2a4a6a 100%);
    --glass-bg: rgba(20, 30, 45, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --scrollbar-thumb: #3a4a5c;
    --faq-plus-color: #7ea6d0;
  }
}

/* ===== 2. Reset & Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 1.05rem;
  font-weight: 400;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 8px;
  border: 2px solid var(--bg);
}

::selection {
  background: rgba(27, 74, 107, 0.2);
  color: var(--text-primary);
}

/* ===== 3. Typography & Links ===== */
h1, h2, h3, h4, h5, h6 {
  color: var(--heading-color);
  font-weight: 700;
  line-height: 1.35;
  margin-top: 1.8rem;
  margin-bottom: 0.8rem;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  border-left: 6px solid var(--accent);
  padding-left: 0.8rem;
  font-weight: 700;
}

h3 {
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  font-weight: 600;
}

h4 {
  font-size: 1.15rem;
  color: var(--text-secondary);
  font-weight: 600;
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

a {
  color: var(--link-color);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

a:hover {
  color: var(--link-hover);
  border-bottom-color: currentColor;
}

/* ===== 4. Layout Utilities ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.text-muted {
  color: var(--text-muted);
}

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

.bg-white {
  background-color: var(--surface);
}

/* ===== 5. Buttons ===== */
.btn {
  display: inline-block;
  background: var(--btn-bg);
  color: var(--btn-text);
  padding: 0.7rem 1.8rem;
  border-radius: 50px;
  border: none;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(27, 59, 92, 0.3);
  text-align: center;
  line-height: 1.4;
}

.btn:hover {
  background: #0d2e4a;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(27, 59, 92, 0.4);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
  box-shadow: none;
}

.btn-outline:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(27, 74, 107, 0.3);
}

/* ===== 6. Navigation Bar ===== */
.navbar {
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-light);
  padding: 0.8rem 0;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.3s ease;
}

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

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.brand {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--heading-color);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 2px;
  transition: color 0.3s ease;
}

.brand span {
  color: var(--accent-2);
  font-weight: 800;
}

.brand:hover {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  border: none;
  position: relative;
  padding: 4px 0;
  font-size: 1rem;
  transition: color 0.2s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--accent);
}

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

.search-box {
  display: flex;
  background: var(--surface);
  border-radius: 50px;
  padding: 0.3rem 0.3rem 0.3rem 1.2rem;
  border: 1px solid var(--border-light);
  align-items: center;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.search-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(27, 74, 107, 0.15);
}

.search-box input {
  border: none;
  outline: none;
  background: transparent;
  width: 180px;
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: width 0.3s ease;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-box input:focus {
  width: 220px;
}

.search-box button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 0.5rem 1.2rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.3s ease, transform 0.2s ease;
}

.search-box button:hover {
  background: var(--accent-2);
  transform: scale(1.03);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-primary);
  cursor: pointer;
  line-height: 1;
  padding: 0 8px;
  transition: transform 0.2s ease;
}

.menu-toggle:hover {
  transform: rotate(90deg);
}

/* ===== 7. Hero Section ===== */
.hero {
  background: var(--hero-gradient);
  color: #fff;
  padding: 4rem 0 4.5rem;
  border-radius: 0 0 48px 48px;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.hero h1 {
  color: #ffffff;
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 800;
  margin-bottom: 1rem;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  animation: fadeInUp 0.8s ease both;
}

.hero p {
  color: #dceaf5;
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  max-width: 600px;
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero .btn {
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero .badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  color: #fff;
  padding: 0.3rem 1.2rem;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  animation: fadeInUp 0.8s ease both;
}

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

/* ===== 8. Cards & Grids ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.card {
  background: var(--card-bg);
  border-radius: var(--card-radius);
  padding: 1.8rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-light);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

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

.card h3 {
  margin-top: 0.3rem;
  margin-bottom: 0.8rem;
  font-size: 1.3rem;
}

.card p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.card a {
  font-weight: 600;
  display: inline-block;
  transition: transform 0.3s ease;
}

.card a:hover {
  transform: translateX(4px);
}

/* ===== 9. Tables ===== */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: var(--surface);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

th {
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
  padding: 14px 16px;
  text-align: left;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
}

td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: var(--surface-2);
}

/* ===== 10. FAQ Styles ===== */
.faq-item {
  border: 1px solid var(--border-light);
  border-radius: 16px;
  background: var(--surface);
  padding: 1.2rem 1.5rem;
  margin-bottom: 1rem;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.faq-item:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.faq-question {
  font-weight: 600;
  color: var(--heading-color);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 1.05rem;
  user-select: none;
}

.faq-question span {
  font-size: 1.4rem;
  color: var(--faq-plus-color);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  font-weight: 300;
}

.faq-answer {
  margin-top: 0.8rem;
  color: var(--text-secondary);
  display: none;
  animation: fadeIn 0.4s ease;
  border-top: 1px dashed var(--border-light);
  padding-top: 0.8rem;
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== 11. HowTo Steps ===== */
.step {
  background: var(--surface);
  border-radius: 16px;
  padding: 1.5rem 1.8rem;
  margin-bottom: 1rem;
  border-left: 5px solid var(--accent);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.step:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-hover);
}

.step strong {
  color: var(--heading-color);
  font-weight: 700;
}

/* ===== 12. Badge ===== */
.badge {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  padding: 0.25rem 1rem;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 500;
}

/* ===== 13. Code Blocks ===== */
pre {
  background: var(--code-bg);
  padding: 1.2rem;
  border-radius: 12px;
  overflow-x: auto;
  color: var(--text-primary);
  font-size: 0.95rem;
  line-height: 1.6;
  border: 1px solid var(--border-light);
}

code {
  font-family: "SF Mono", Consolas, "Courier New", monospace;
  background: var(--code-bg);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

/* ===== 14. Footer ===== */
.footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
  position: relative;
}

.footer h4 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.footer a {
  color: #b3c9e0;
  border: none;
  display: inline-block;
  padding: 4px 0;
  transition: color 0.3s ease, transform 0.2s ease;
}

.footer a:hover {
  color: #ffffff;
  transform: translateX(4px);
}

.footer .copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  font-size: 0.95rem;
  color: #c1d2e3;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer .copyright p {
  margin: 0.3rem 0;
  color: #c1d2e3;
}

/* ===== 15. Back to Top ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  background: var(--btn-bg);
  color: #ffffff;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  border: none;
  opacity: 0.9;
}

.back-to-top:hover {
  background: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  color: #fff;
}

/* ===== 16. Section Spacing & Animation ===== */
section {
  margin: 3rem 0;
}

section[id] {
  scroll-margin-top: 100px;
}

/* 滚动显现动画 */
.fade-in-section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 17. Hero SVG & Visuals ===== */
.hero-svg {
  width: 100%;
  height: auto;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

/* ===== 18. Responsive Design ===== */
@media (max-width: 1024px) {
  .container {
    padding: 0 20px;
  }
  
  .brand {
    font-size: 1.5rem;
  }
  
  .search-box input {
    width: 140px;
  }
  
  .search-box input:focus {
    width: 160px;
  }
}

@media (max-width: 800px) {
  body {
    font-size: 1rem;
  }
  
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0.8rem;
    padding: 1rem 0;
    border-top: 1px solid var(--border-light);
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
  }
  
  .nav-links.show-mobile {
    display: flex;
  }
  
  .nav-links a {
    padding: 0.5rem 0;
    width: 100%;
    text-align: center;
    font-size: 1.05rem;
  }
  
  .nav-links a::after {
    display: none;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .search-box {
    width: 100%;
    margin-top: 0.5rem;
    order: 3;
  }
  
  .search-box input {
    flex: 1;
    width: auto;
  }
  
  .search-box input:focus {
    width: auto;
  }
  
  .hero {
    padding: 3rem 0 3.5rem;
    border-radius: 0 0 32px 32px;
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
  
  .card {
    padding: 1.4rem;
  }
  
  h2 {
    font-size: 1.5rem;
    border-left-width: 4px;
  }
  
  .footer .copyright {
    flex-direction: column;
    text-align: center;
  }
  
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
  }
  
  /* 联系部分网格 */
  .contact-grid {
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
  }
  
  /* 行业应用卡片 */
  .industry-card {
    flex: 1 1 100% !important;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .brand {
    font-size: 1.3rem;
  }
  
  .brand span:last-child {
    display: none;
  }
  
  .search-box button {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
  }
  
  h1 {
    font-size: 1.5rem;
  }
  
  h2 {
    font-size: 1.3rem;
  }
  
  .card {
    padding: 1.2rem;
  }
  
  .faq-item {
    padding: 1rem 1.2rem;
  }
  
  .step {
    padding: 1.2rem;
  }
  
  table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

/* ===== 19. Glassmorphism & Effects ===== */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
}

/* ===== 20. Dark Mode Fine-tuning ===== */
@media (prefers-color-scheme: dark) {
  .faq-item,
  .card {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  }
  
  .faq-answer {
    border-top-color: var(--border-light);
  }
  
  .step {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  }
  
  .search-box {
    background: rgba(255, 255, 255, 0.05);
  }
  
  .search-box input {
    color: var(--text-primary);
  }
  
  .back-to-top {
    background: var(--accent);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  }
}

/* ===== 21. Print Styles ===== */
@media print {
  .navbar,
  .back-to-top,
  .search-box,
  .menu-toggle {
    display: none !important;
  }
  
  body {
    background: #ffffff;
    color: #000000;
  }
  
  .container {
    max-width: 100%;
    padding: 0;
  }
  
  .card,
  .faq-item,
  .step {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }
  
  a {
    color: #000;
    text-decoration: underline;
  }
}

/* ===== 22. Accessibility & Focus States ===== */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--accent);
  color: #fff;
  padding: 8px 16px;
  border-radius: 0 0 8px 8px;
  z-index: 2000;
  transition: top 0.3s ease;
}

.skip-link:focus {
  top: 0;
}

/* ===== 23. Utility & Helper Classes ===== */
.section-title {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-title h2 {
  border-left: none;
  position: relative;
  display: inline-block;
  padding-bottom: 0.5rem;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
}

/* 卡片网格响应式增强 */
@media (min-width: 801px) and (max-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 动画：悬停微交互 */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

/* 渐变边框效果 */
.gradient-border {
  position: relative;
  background: var(--surface);
  border-radius: var(--card-radius);
  padding: 1px;
  overflow: hidden;
}

.gradient-border::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2), var(--accent));
  z-index: -1;
  border-radius: calc(var(--card-radius) + 2px);
}

/* 标签 */
.tag {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 0.2rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
  transition: background 0.3s ease;
}

.tag:hover {
  background: var(--accent-2);
}

/* 分隔线 */
.divider {
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 3px;
  margin: 1.5rem 0;
}

/* 联系信息网格 */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

/* 内容区域背景交替 */
.content-alt {
  background: var(--surface-2);
  border-radius: 32px;
  padding: 2.5rem;
  margin: 2rem 0;
}

/* 强调文字 */
.emphasis {
  font-weight: 600;
  color: var(--heading-color);
  background: linear-gradient(transparent 60%, rgba(27, 74, 107, 0.1) 60%);
}

/* 列表样式优化 */
ul, ol {
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

li {
  margin-bottom: 0.5rem;
}

/* 响应式字体 */
@media (max-width: 600px) {
  html {
    font-size: 15px;
  }
}

/* 减少动态偏好 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}
```