```css
/* ============================================
   kinijo.com — 免费高清视频 · 蓝光画质影视库
   完整样式表 (style.css)
   ============================================ */

/* ---------- 主题变量 (Light/Dark) ---------- */
:root {
  --bg-light: #f8fafc;
  --text-light: #1e293b;
  --heading-light: #0f172a;
  --muted-light: #475569;
  --card-light: rgba(255, 255, 255, 0.75);
  --border-light: rgba(203, 213, 225, 0.6);
  --primary-light: #1d4ed8;
  --accent-light: #7c3aed;

  --bg-dark: #0b1120;
  --text-dark: #e2e8f0;
  --heading-dark: #f8fafc;
  --muted-dark: #94a3b8;
  --card-dark: rgba(30, 41, 59, 0.8);
  --border-dark: rgba(51, 65, 85, 0.6);
  --primary-dark: #60a5fa;
  --accent-dark: #a78bfa;

  --bg: var(--bg-light);
  --text: var(--text-light);
  --heading: var(--heading-light);
  --muted: var(--muted-light);
  --card: var(--card-light);
  --border: var(--border-light);
  --primary: var(--primary-light);
  --accent: var(--accent-light);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg: var(--bg-dark);
  --text: var(--text-dark);
  --heading: var(--heading-dark);
  --muted: var(--muted-dark);
  --card: var(--card-dark);
  --border: var(--border-dark);
  --primary: var(--primary-dark);
  --accent: var(--accent-dark);
}

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

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

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  transition: background 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at top right, rgba(124, 58, 237, 0.08), transparent 60%),
              radial-gradient(ellipse at bottom left, rgba(29, 78, 216, 0.08), transparent 60%);
  pointer-events: none;
  z-index: -1;
}

[data-theme="dark"] body::before {
  background: radial-gradient(ellipse at top right, rgba(96, 165, 250, 0.06), transparent 60%),
              radial-gradient(ellipse at bottom left, rgba(167, 139, 250, 0.06), transparent 60%);
}

h1, h2, h3, h4, h5 {
  color: var(--heading);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, var(--heading), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  margin-top: 3rem;
  margin-bottom: 1.5rem;
  padding-left: 1rem;
  border-left: 6px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

h3 {
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  margin-top: 1.8rem;
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1.1rem;
  margin-top: 1.2rem;
  color: var(--accent);
}

p {
  margin-bottom: 1rem;
  color: var(--text);
  line-height: 1.8;
}

a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
  border-bottom: 1px solid transparent;
}

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

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

ul, ol {
  padding-left: 1.25rem;
  margin-bottom: 1rem;
}

li {
  margin-bottom: 0.5rem;
}

/* ---------- 容器与布局 ---------- */
.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px);
}

main.container {
  padding-top: 1.5rem;
  padding-bottom: 4rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr));
  gap: clamp(1rem, 3vw, 2rem);
}

/* ---------- 卡片通用样式（毛玻璃效果） ---------- */
.card,
.article-card,
.faq-item,
details.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: clamp(1.2rem, 3vw, 2rem);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

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

.card:hover::before,
.article-card:hover::before {
  opacity: 1;
}

/* ---------- 导航栏 ---------- */
.navbar {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 2vw, 2rem);
  padding: 0.75rem 0;
  flex-wrap: wrap;
  list-style: none;
}

.nav-links a {
  color: var(--heading);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.4rem 0.2rem;
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
}

.nav-links a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
  text-decoration: none;
}

.nav-links a:first-child {
  font-weight: 800;
  font-size: 1.4rem;
  margin-right: auto;
  border-bottom: none;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- 主题切换按钮 ---------- */
.theme-toggle {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  cursor: pointer;
  color: var(--heading);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.theme-toggle:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: scale(1.05);
}

/* ---------- Hero Banner (渐变) ---------- */
.hero {
  padding: clamp(2rem, 6vw, 4rem) 0;
}

.banner-swiper {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 50%, #1e3a8a 100%);
  color: #fff;
  padding: clamp(2rem, 6vw, 4rem) clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius-lg);
  margin-bottom: 2.5rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.banner-swiper::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  transform: rotate(30deg);
}

.banner-swiper::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 50%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
}

.banner-swiper h1,
.banner-swiper p {
  color: #fff;
  position: relative;
  z-index: 1;
}

.banner-swiper h1 {
  -webkit-text-fill-color: #fff;
  background: none;
}

.banner-swiper p {
  font-size: clamp(1rem, 2vw, 1.3rem);
  max-width: 800px;
  margin: 0 auto 1.5rem;
  opacity: 0.95;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.hero .btn {
  background: #fff;
  color: var(--heading);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  position: relative;
  z-index: 2;
}

.hero .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  padding: 0.8rem 2.2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 16px rgba(29, 78, 216, 0.25);
}

.btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 24px rgba(29, 78, 216, 0.35);
  color: #fff;
  text-decoration: none;
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

/* ---------- 搜索框 ---------- */
.search-box {
  display: flex;
  gap: 0.5rem;
  margin: 2rem 0;
  max-width: 640px;
}

.search-box input {
  flex: 1;
  padding: 0.9rem 1.5rem;
  border-radius: 60px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-size: 1rem;
  transition: var(--transition);
  outline: none;
  backdrop-filter: blur(8px);
}

.search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.1);
}

.search-box button {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  border: none;
  border-radius: 60px;
  padding: 0 2.2rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
}

.search-box button:hover {
  transform: scale(1.03);
  box-shadow: 0 4px 16px rgba(29, 78, 216, 0.3);
}

/* ---------- 文章列表 ---------- */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.article-card {
  padding: clamp(1.2rem, 3vw, 1.8rem);
  position: relative;
}

.article-card h3 {
  margin-top: 0;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  transition: color 0.2s ease;
}

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

.article-card .meta {
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.article-card .meta::before {
  content: '📅';
  font-size: 0.9rem;
}

.article-card p {
  margin-bottom: 1rem;
  color: var(--text);
  opacity: 0.9;
}

.article-card .readmore {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-weight: 600;
  color: var(--primary);
  transition: gap 0.2s ease;
}

.article-card .readmore:hover {
  gap: 0.6rem;
  color: var(--accent);
}

/* ---------- FAQ ---------- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.faq-item {
  padding: 0;
  overflow: hidden;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--heading);
  padding: 1.2rem 1.5rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s ease;
  background: var(--card);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '＋';
  font-size: 1.2rem;
  color: var(--primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq-item[open] summary::after {
  content: '－';
  transform: rotate(180deg);
}

.faq-item summary:hover {
  background: rgba(29, 78, 216, 0.05);
}

.faq-item p {
  padding: 0 1.5rem 1.5rem;
  margin: 0;
  color: var(--muted);
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

/* ---------- HowTo 指南 ---------- */
#howto .card {
  line-height: 1.9;
}

#howto ol {
  margin: 1rem 0;
  padding-left: 1.5rem;
}

#howto ol li {
  padding: 0.4rem 0;
  border-bottom: 1px dashed var(--border);
}

#howto ol li:last-child {
  border-bottom: none;
}

/* ---------- 表格 ---------- */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--card);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

th, td {
  padding: 0.9rem 1.2rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  color: var(--text);
}

th {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-bottom: none;
}

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

tr:hover td {
  background: rgba(29, 78, 216, 0.03);
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: clamp(1.5rem, 4vw, 2.5rem) 0;
  margin-top: auto;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer span,
.footer a {
  color: var(--muted);
  font-size: 0.9rem;
}

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

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

/* ---------- 返回顶部 ---------- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 1.8rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
  z-index: 90;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--primary));
}

/* ---------- 滚动动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

.reveal.active {
  opacity: 1;
  transform: none;
}

/* 延迟动画 */
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }

/* ---------- 企业信息卡片 ---------- */
#contact .card {
  position: relative;
}

#contact .card p {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-bottom: 0.6rem;
}

#contact .card p::before {
  content: '•';
  color: var(--accent);
  font-weight: bold;
  font-size: 1.2rem;
  line-height: 1.5;
}

/* ---------- 响应式设计 ---------- */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  .hero h1 { font-size: 2rem; }
  .nav-links { gap: 0.6rem; }
  .nav-links a:first-child { font-size: 1.2rem; }
  .theme-toggle { padding: 0.4rem 0.8rem; font-size: 0.8rem; }
  .back-to-top { bottom: 1rem; right: 1rem; width: 40px; height: 40px; font-size: 1.5rem; }
  .banner-swiper { border-radius: var(--radius-md); }
  .search-box { flex-direction: column; }
  .search-box button { padding: 0.8rem 1.5rem; }
  .footer .container { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  body { font-size: 15px; }
  .container { padding: 0 16px; }
  h2 { font-size: 1.4rem; margin-top: 2rem; }
  .card, .article-card { padding: 1.2rem; border-radius: var(--radius-sm); }
  .nav-links { justify-content: center; }
  .nav-links a:first-child { width: 100%; text-align: center; margin-bottom: 0.4rem; }
}

/* ---------- 无障碍与细节 ---------- */
::selection {
  background: var(--primary);
  color: #fff;
}

::-webkit-scrollbar {
  width: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 8px;
  border: 2px solid var(--bg);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* 焦点可见性 */
:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* 暗色模式下的额外优化 */
[data-theme="dark"] .card,
[data-theme="dark"] .article-card,
[data-theme="dark"] .faq-item {
  background: rgba(30, 41, 59, 0.7);
  border-color: rgba(51, 65, 85, 0.5);
}

[data-theme="dark"] .banner-swiper {
  background: linear-gradient(135deg, #1e293b 0%, #334155 50%, #0f172a 100%);
}

[data-theme="dark"] .btn {
  box-shadow: 0 4px 16px rgba(96, 165, 250, 0.2);
}

[data-theme="dark"] .search-box input {
  background: rgba(30, 41, 59, 0.7);
}

[data-theme="dark"] h1 {
  background: linear-gradient(135deg, #f8fafc, #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 打印优化 */
@media print {
  .navbar, .footer, .back-to-top, .theme-toggle, .search-box {
    display: none !important;
  }
  body {
    background: #fff;
    color: #000;
  }
  .card, .article-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

/* 性能优化：减少动画对低端设备的影响 */
@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;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}
```