```css
/* ============================================
   人人影视 · 全局样式
   风格：影视质感 · 深红主色 · 毛玻璃 · 圆角卡片
   ============================================ */

:root {
  --primary: #b81c22;
  --primary-dark: #8e1419;
  --primary-light: #e85d63;
  --accent: #f0b429;
  --dark-bg: #0f1115;
  --dark-surface: #1a1d24;
  --dark-card: #21252e;
  --light-bg: #f8f7f4;
  --light-surface: #ffffff;
  --text: #1a1a1a;
  --text-light: #555;
  --text-muted: #888;
  --border: rgba(0, 0, 0, 0.08);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.14);
  --radius: 20px;
  --radius-sm: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-display: "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* ===== 暗色主题变量 ===== */
body.darkmode {
  --light-bg: var(--dark-bg);
  --light-surface: var(--dark-surface);
  --text: #e8e8e8;
  --text-light: #b0b0b0;
  --text-muted: #777;
  --border: rgba(255, 255, 255, 0.08);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
}

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

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

body {
  font-family: var(--font-sans);
  line-height: 1.7;
  color: var(--text);
  background: var(--light-bg);
  transition: background 0.4s ease, color 0.3s ease;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

::selection {
  background: var(--primary);
  color: #fff;
}

/* 滚动条定制 */
::-webkit-scrollbar {
  width: 10px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--primary-dark));
  border-radius: 20px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

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

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
}

/* ===== 导航栏 ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

body.darkmode .navbar {
  background: rgba(15, 17, 21, 0.75);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}

.logo {
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: 1px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.03);
}

.nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: 40px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-light);
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--primary);
  background: rgba(184, 28, 34, 0.06);
}

.nav-links a:hover::after {
  width: 24px;
}

/* 搜索框 */
.search-box {
  display: flex;
  align-items: center;
  background: var(--light-surface);
  border: 1px solid var(--border);
  border-radius: 40px;
  padding: 8px 18px;
  gap: 8px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  min-width: 200px;
}

.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(184, 28, 34, 0.12);
}

.search-box input {
  border: none;
  background: transparent;
  outline: none;
  width: 100%;
  font-size: 0.9rem;
  color: var(--text);
  font-family: inherit;
}

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

.search-box svg {
  width: 18px;
  height: 18px;
  fill: var(--text-muted);
  flex-shrink: 0;
}

.mobile-menu {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text);
  padding: 4px 8px;
  border-radius: 8px;
  transition: background 0.2s;
}

.mobile-menu:hover {
  background: rgba(0, 0, 0, 0.05);
}

body.darkmode .mobile-menu:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ===== 响应式导航 ===== */
@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .mobile-menu {
    display: block;
  }

  .search-box {
    min-width: 120px;
  }

  .search-box input {
    width: 80px;
  }
}

@media (max-width: 480px) {
  .logo {
    font-size: 1.4rem;
  }

  .search-box {
    display: none;
  }
}

/* ===== Banner 首屏 ===== */
.banner {
  background: linear-gradient(135deg, rgba(184, 28, 34, 0.06) 0%, rgba(240, 180, 41, 0.08) 50%, rgba(255, 255, 255, 0) 100%);
  border-radius: 28px;
  padding: 48px 40px;
  margin: 32px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 32px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.banner::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(184, 28, 34, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

body.darkmode .banner {
  background: linear-gradient(135deg, rgba(184, 28, 34, 0.15) 0%, rgba(240, 180, 41, 0.05) 100%);
  border-color: rgba(255, 255, 255, 0.06);
}

.banner-text {
  flex: 2;
  min-width: 280px;
  position: relative;
  z-index: 1;
}

.banner-text h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.15;
  letter-spacing: -0.5px;
}

.banner-text h1 span {
  color: var(--primary);
  position: relative;
  display: inline-block;
}

.banner-text h1 span::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 8px;
  background: rgba(184, 28, 34, 0.15);
  border-radius: 4px;
  z-index: -1;
}

.banner-text p {
  font-size: 1.1rem;
  color: var(--text-light);
  max-width: 560px;
  margin-bottom: 28px;
  line-height: 1.8;
}

.banner-btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 14px 36px;
  border-radius: 60px;
  font-weight: 600;
  font-size: 1rem;
  box-shadow: 0 8px 24px rgba(184, 28, 34, 0.35);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.banner-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.6s ease;
}

.banner-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(184, 28, 34, 0.45);
}

.banner-btn:hover::before {
  left: 100%;
}

.banner-visual {
  flex: 1;
  min-width: 200px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.banner-visual svg {
  width: 220px;
  height: auto;
  filter: drop-shadow(0 12px 32px rgba(184, 28, 34, 0.2));
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@media (max-width: 768px) {
  .banner {
    padding: 32px 24px;
    flex-direction: column-reverse;
    text-align: center;
  }

  .banner-text p {
    margin-left: auto;
    margin-right: auto;
  }

  .banner-visual svg {
    width: 160px;
  }
}

/* ===== 区块标题 ===== */
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  margin: 56px 0 28px;
  position: relative;
  padding-bottom: 14px;
  color: var(--text);
  letter-spacing: -0.3px;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 64px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 4px;
}

.section-title::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 68px;
  width: 12px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-light), transparent);
  border-radius: 4px;
  opacity: 0.5;
}

/* ===== 文章卡片网格 ===== */
.grid-articles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

.article-card {
  background: var(--light-surface);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(24px);
}

.article-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.article-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(184, 28, 34, 0.2);
}

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

.article-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
  line-height: 1.5;
  transition: color 0.3s;
}

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

.article-card .meta {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.article-card p {
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-more {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.3s ease;
}

.read-more::after {
  content: "→";
  transition: transform 0.3s ease;
}

.read-more:hover {
  gap: 8px;
}

.read-more:hover::after {
  transform: translateX(2px);
}

/* ===== 品牌故事 ===== */
.brand-story {
  background: var(--light-surface);
  border-radius: 28px;
  padding: 48px;
  margin: 48px 0;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
}

body.darkmode .brand-story {
  background: var(--dark-surface);
}

.two-col {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.two-col > div {
  flex: 1;
  min-width: 280px;
}

.two-col p {
  margin-bottom: 16px;
  color: var(--text-light);
  line-height: 1.8;
}

.two-col strong {
  color: var(--primary);
  font-weight: 700;
}

.two-col em {
  font-style: italic;
  color: var(--text);
  background: linear-gradient(120deg, rgba(184, 28, 34, 0.1) 0%, transparent 100%);
  padding: 2px 8px;
  border-radius: 4px;
}

/* ===== HowTo 区块 ===== */
#howto {
  background: var(--light-surface) !important;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
}

body.darkmode #howto {
  background: var(--dark-surface) !important;
}

#howto h3 {
  color: var(--primary);
  margin-bottom: 12px;
  font-size: 1.1rem;
}

#howto ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

#howto ol li {
  margin-bottom: 8px;
  color: var(--text-light);
  position: relative;
}

#howto ol li::marker {
  color: var(--primary);
  font-weight: 700;
}

#howto p {
  color: var(--text-light);
  margin-bottom: 8px;
}

/* ===== FAQ 手风琴 ===== */
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  transition: background 0.3s ease;
}

.faq-item:first-child {
  border-top: 1px solid var(--border);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  cursor: pointer;
  align-items: center;
  font-size: 1.05rem;
  color: var(--text);
  transition: color 0.3s;
  padding: 4px 8px;
  border-radius: 8px;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-question span {
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--primary);
  transition: transform 0.4s ease;
  display: inline-block;
  line-height: 1;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease, opacity 0.3s ease;
  color: var(--text-light);
  padding-left: 16px;
  opacity: 0;
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-top: 14px;
  padding-bottom: 4px;
  opacity: 1;
}

/* ===== 评价卡片 ===== */
figure {
  background: var(--light-surface) !important;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

blockquote {
  font-style: italic;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 12px;
  position: relative;
  padding-left: 20px;
}

blockquote::before {
  content: "“";
  position: absolute;
  left: 0;
  top: -8px;
  font-size: 2.5rem;
  color: var(--primary);
  opacity: 0.3;
  font-family: Georgia, serif;
}

figcaption {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

/* ===== 页脚 ===== */
footer {
  background: #16161a;
  color: #a0a0a0;
  padding: 56px 0 28px;
  margin-top: 72px;
  position: relative;
}

body.darkmode footer {
  background: #0a0a0c;
}

footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
  background-size: 200% 100%;
  animation: gradientMove 8s ease infinite;
}

@keyframes gradientMove {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 32px;
}

.footer-grid h4 {
  color: #fff;
  margin-bottom: 16px;
  font-size: 1rem;
  font-weight: 700;
  position: relative;
  padding-bottom: 8px;
}

.footer-grid h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.footer-grid a {
  color: #a0a0a0;
  display: block;
  margin: 8px 0;
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.92rem;
}

.footer-grid a:hover {
  color: #fff;
  padding-left: 6px;
}

.footer-grid p {
  margin: 8px 0;
  font-size: 0.92rem;
}

.copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 40px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: #777;
  line-height: 2;
}

.copyright a {
  color: #999;
  transition: color 0.3s;
}

.copyright a:hover {
  color: #fff;
}

/* ===== 返回顶部 & 暗色模式按钮 ===== */
button[style*="position:fixed"] {
  z-index: 9999;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

button[style*="position:fixed"]:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

/* ===== 滚动动画 ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.article-card.visible {
  animation: fadeInUp 0.6s ease forwards;
}

/* ===== 响应式调整 ===== */
@media (max-width: 768px) {
  .section-title {
    font-size: 1.6rem;
    margin-top: 40px;
  }

  .grid-articles {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .brand-story {
    padding: 28px 20px;
    border-radius: 20px;
  }

  .two-col {
    gap: 24px;
  }

  .banner {
    padding: 28px 20px;
  }

  .banner-text h1 {
    font-size: 1.8rem;
  }

  .banner-text p {
    font-size: 1rem;
  }

  .footer-grid {
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .banner-text h1 {
    font-size: 1.5rem;
  }

  .banner-btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .article-card {
    padding: 20px;
  }

  .section-title {
    font-size: 1.4rem;
  }

  .faq-question {
    font-size: 0.95rem;
  }
}

/* ===== 打印样式 ===== */
@media print {
  .navbar,
  .banner-visual,
  .mobile-menu,
  button[style*="position:fixed"],
  footer {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .container {
    max-width: 100%;
  }
}

/* ===== 无障碍：焦点可见性 ===== */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== 暗色模式适配细节 ===== */
body.darkmode .article-card {
  background: var(--dark-card);
}

body.darkmode .article-card:hover {
  border-color: rgba(184, 28, 34, 0.4);
}

body.darkmode .banner-text p {
  color: #b0b0b0;
}

body.darkmode .faq-answer {
  color: #b0b0b0;
}

body.darkmode .two-col p {
  color: #b0b0b0;
}

body.darkmode .two-col em {
  color: #e8e8e8;
}

body.darkmode blockquote {
  color: #d0d0d0;
}

body.darkmode .search-box {
  background: var(--dark-surface);
  border-color: rgba(255, 255, 255, 0.1);
}

body.darkmode .search-box input {
  color: #e8e8e8;
}

body.darkmode .search-box input::placeholder {
  color: #666;
}

body.darkmode .search-box svg {
  fill: #888;
}

body.darkmode .nav-links a {
  color: #b0b0b0;
}

body.darkmode .nav-links a:hover {
  color: var(--primary-light);
  background: rgba(184, 28, 34, 0.15);
}

/* ===== 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;
    scroll-behavior: auto !important;
  }
}
```