```css
/* ========== 影视工场 · Warm Cinema Design System ========== */
/* 独有视觉：暖调奶油底 + 陶土红/深青/芥末黄 · 胶片美学 */

:root {
  --cream: #FAF4EC;
  --cream-dark: #F0E6DA;
  --terracotta: #E85D4A;
  --teal: #0E7C86;
  --teal-dark: #0A6A73;
  --mustard: #F2B544;
  --brown: #2B1810;
  --border: #E8DCC8;
  --white: #FFFFFF;
}

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

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background: var(--cream);
  color: var(--brown);
  background-image: radial-gradient(rgba(232, 93, 74, 0.04) 1px, transparent 1px);
  background-size: 22px 22px;
  line-height: 1.6;
}

::selection {
  background: var(--terracotta);
  color: var(--cream);
}

/* ========== 核心布局 ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
  position: relative;
}

.section:nth-child(even) {
  background: var(--cream-dark);
}

/* ========== 导航 — 固定顶栏 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250, 244, 236, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 20px rgba(43, 24, 16, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--brown);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: var(--terracotta);
  color: var(--cream);
  box-shadow: 0 3px 10px rgba(232, 93, 74, 0.35);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--brown);
  transition: color 0.2s;
  position: relative;
  padding: 4px 0;
}

.main-nav a:hover {
  color: var(--terracotta);
}

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

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

.nav-cta {
  padding: 9px 22px;
  border-radius: 8px;
  color: var(--cream) !important;
  font-weight: 600;
  background: var(--teal);
  box-shadow: 0 3px 10px rgba(14, 124, 134, 0.25);
  transition: all 0.3s ease !important;
}

.nav-cta:hover {
  background: var(--teal-dark);
  color: var(--cream) !important;
  transform: translateY(-2px);
  box-shadow: 0 5px 16px rgba(14, 124, 134, 0.35);
}

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

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--brown);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ========== Hero ========== */
.hero {
  min-height: 75vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--cream) 0%, #FDF8F2 40%, var(--cream-dark) 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -15%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(242, 181, 68, 0.18) 0%, transparent 55%);
  pointer-events: none;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  right: 6%;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 300px;
  background: repeating-linear-gradient(
    180deg,
    var(--teal) 0px,
    var(--teal) 18px,
    rgba(14, 124, 134, 0.15) 18px,
    rgba(14, 124, 134, 0.15) 24px,
    var(--teal) 24px,
    var(--teal) 42px,
    rgba(14, 124, 134, 0.15) 42px,
    rgba(14, 124, 134, 0.15) 48px
  );
  border-radius: 12px;
  opacity: 0.25;
  pointer-events: none;
  box-shadow: 0 4px 20px rgba(14, 124, 134, 0.1);
}

.hero-content {
  max-width: 720px;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 20px;
  margin-bottom: 18px;
  background: var(--mustard);
  color: var(--brown);
  letter-spacing: 1px;
  box-shadow: 0 2px 8px rgba(242, 181, 68, 0.3);
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.1;
  margin-bottom: 20px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--brown);
}

.hero h1::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--terracotta), var(--mustard));
  border-radius: 2px;
  margin-top: 16px;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.7;
  max-width: 560px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-image {
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  border: 4px solid var(--white);
  box-shadow: 0 12px 40px rgba(43, 24, 16, 0.12);
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 0.95rem;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: var(--terracotta);
  color: var(--cream);
  box-shadow: 0 4px 16px rgba(232, 93, 74, 0.3);
}

.btn-primary:hover {
  background: #d94a37;
  box-shadow: 0 6px 24px rgba(232, 93, 74, 0.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--teal);
  color: var(--teal);
}

.btn-outline:hover {
  background: var(--teal);
  color: var(--cream);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(14, 124, 134, 0.25);
}

/* ========== 标签/标题 ========== */
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 12px;
  color: var(--teal);
  background: rgba(14, 124, 134, 0.1);
  padding: 5px 16px;
  border-radius: 20px;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
  color: var(--brown);
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  line-height: 1.7;
  margin-bottom: 40px;
  font-size: 1rem;
}

/* ========== 卡片网格 ========== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.category-card {
  background: var(--white);
  border-radius: 16px;
  padding: 30px;
  border: 2px dashed var(--border);
  transition: all 0.3s ease;
  position: relative;
  box-shadow: 0 2px 8px rgba(43, 24, 16, 0.03);
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(43, 24, 16, 0.08);
  border-color: var(--terracotta);
  background: #FFFAF5;
}

.card-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: var(--teal);
  color: var(--cream);
  box-shadow: 0 3px 10px rgba(14, 124, 134, 0.2);
  transition: transform 0.3s;
}

.category-card:hover .card-icon {
  transform: scale(1.05) rotate(-3deg);
}

.card-link {
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--terracotta);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.3s;
  margin-top: 12px;
}

.card-link:hover {
  gap: 8px;
}

/* ========== 特性块 ========== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.feature-image {
  border-radius: 16px;
  overflow: hidden;
  border: 4px solid var(--white);
  box-shadow: 0 8px 30px rgba(43, 24, 16, 0.1);
  position: relative;
}

.feature-image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 30%;
  background: linear-gradient(transparent, rgba(14, 124, 134, 0.1));
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

.feature-image:hover img {
  transform: scale(1.03);
}

.feature-text {
  padding: 20px 0;
}

.feature-list {
  list-style: none;
  margin-top: 20px;
}

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border);
}

.feature-list li::before {
  content: '✓';
  font-weight: 700;
  color: var(--teal);
  background: rgba(14, 124, 134, 0.1);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
}

/* ========== 数据条 ========== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 32px 24px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--white);
  position: relative;
  transition: all 0.3s;
  box-shadow: 0 2px 8px rgba(43, 24, 16, 0.03);
}

.stat-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(43, 24, 16, 0.08);
}

.stat-item::after {
  content: '';
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 3px;
  background: var(--terracotta);
  border-radius: 2px;
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--teal);
  line-height: 1;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  font-weight: 500;
}

/* ========== 内容墙 ========== */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.content-wall-item {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  background: var(--white);
  box-shadow: 0 2px 8px rgba(43, 24, 16, 0.03);
}

.content-wall-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(43, 24, 16, 0.1);
  border-color: var(--teal);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s ease;
  display: block;
}

.content-wall-item:hover img {
  transform: scale(1.06);
}

.content-wall-body {
  padding: 22px;
}

.content-wall-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--brown);
}

.content-wall-body p {
  font-size: 0.85rem;
  opacity: 0.7;
  line-height: 1.5;
}

/* ========== FAQ ========== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: var(--white);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.faq-item:hover {
  border-color: var(--teal);
  box-shadow: 0 4px 16px rgba(43, 24, 16, 0.06);
}

.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
  transition: background 0.3s;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--terracotta);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
}

.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.75;
  line-height: 1.6;
  font-size: 0.9rem;
  border-top: 1px dashed var(--border);
  margin-top: 4px;
  padding-top: 14px;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ========== CTA横幅 ========== */
.cta-banner {
  padding: 60px 24px;
  text-align: center;
  border-radius: 20px;
  color: var(--cream);
  background: linear-gradient(135deg, var(--terracotta) 0%, #F07B5E 40%, var(--mustard) 100%);
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(232, 93, 74, 0.3);
}

.cta-banner::before {
  content: '🎬';
  position: absolute;
  right: 4%;
  top: 50%;
  transform: translateY(-50%);
  font-size: 7rem;
  opacity: 0.12;
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  left: -10%;
  top: -50%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
}

.cta-banner h2 {
  color: var(--cream);
  font-size: 2rem;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: rgba(250, 244, 236, 0.9);
  margin-bottom: 24px;
  font-size: 1rem;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary {
  background: var(--cream);
  color: var(--terracotta);
  box-shadow: none;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  background: var(--brown);
  color: var(--cream);
  transform: translateY(-2px);
}

/* ========== 页脚 ========== */
.site-footer {
  padding: 56px 0 28px;
  background: var(--cream-dark);
  border-top: 1px solid var(--border);
}

.site-footer .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--brown);
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.6;
  line-height: 1.7;
  margin-top: 12px;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--brown);
  font-weight: 700;
}

.footer-col a {
  display: block;
  text-decoration: none;
  color: var(--brown);
  opacity: 0.55;
  font-size: 0.9rem;
  padding: 5px 0;
  transition: all 0.2s;
}

.footer-col a:hover {
  opacity: 1;
  color: var(--terracotta);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.5;
  color: var(--brown);
}

/* ========== 工具类 ========== */
.text-accent {
  color: var(--terracotta);
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  line-height: 1.7;
  text-align: center;
}

.mt-0 {
  margin-top: 0;
}

.mb-0 {
  margin-bottom: 0;
}

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

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.04); }
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
  }

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

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

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: rgba(250, 244, 236, 0.98);
    padding: 24px;
    gap: 16px;
    box-shadow: 0 10px 30px rgba(43, 24, 16, 0.1);
    border-bottom: 1px solid var(--border);
    align-items: flex-start;
  }

  .main-nav.open a {
    padding: 8px 0;
    width: 100%;
    font-size: 1rem;
  }

  .main-nav.open .nav-cta {
    text-align: center;
    width: 100%;
  }

  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero::after {
    opacity: 0.15;
    width: 40px;
    height: 200px;
  }

  .hero-image {
    margin-top: 32px;
  }

  .section {
    padding: 56px 0;
  }

  .cta-banner {
    padding: 40px 20px;
  }

  .cta-banner h2 {
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }

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

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero::after {
    display: none;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .stat-item {
    padding: 24px 16px;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .btn {
    padding: 12px 22px;
  }

  .content-wall-item img {
    height: 160px;
  }
}