/* ============================================================
   影视工厂 · 视觉设计系统
   风格：复古工业电影 | 胶片×工厂美学
   配色：暖米白 × 橙红 × 灰蓝 × 琥珀黄
   ============================================================ */

/* 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:#FDF8F2;
  color:#2D2A26;
  line-height:1.6;
  -webkit-font-smoothing: antialiased;
}

/* 核心布局 — 居中 */
.container {
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section {
  padding:80px 0;
  position:relative;
}
.section:nth-child(even) {
  background:#FAF0E8;
}

/* ============================================================
   导航 — 固定顶部 胶片式半透明
   ============================================================ */
.site-header {
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:1000;
  background:rgba(253,248,242,0.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(242,95,58,0.15);
  box-shadow:0 2px 20px rgba(45,42,38,0.04);
}
.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:#2D2A26;
  letter-spacing:-0.5px;
}
.logo-icon {
  width:36px;
  height:36px;
  border-radius:4px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.1rem;
  background:linear-gradient(135deg,#F25F3A,#F7C948);
  color:#fff;
  box-shadow:2px 2px 0 rgba(37,109,133,0.25);
}
.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:#4A4745;
  transition:color 0.2s;
  position:relative;
  padding:4px 0;
  letter-spacing:0.3px;
}
.main-nav a::after {
  content:'';
  position:absolute;
  bottom:0;
  left:0;
  width:0;
  height:2px;
  background:#F25F3A;
  border-radius:2px;
  transition:width 0.25s ease;
}
.main-nav a:hover {
  color:#F25F3A;
}
.main-nav a:hover::after {
  width:100%;
}
.nav-cta {
  padding:8px 22px !important;
  border-radius:6px !important;
  background:#256D85;
  color:#fff !important;
  font-weight:600;
  box-shadow:0 2px 8px rgba(37,109,133,0.3);
  transition:all 0.2s !important;
}
.nav-cta::after {
  display:none !important;
}
.nav-cta:hover {
  background:#1D5A6D;
  transform:translateY(-1px);
  box-shadow:0 4px 12px rgba(37,109,133,0.35);
}
.menu-toggle {
  display:none;
  width:32px;
  height:32px;
  border:none;
  background:none;
  cursor:pointer;
  position:relative;
  border-radius:6px;
}
.menu-toggle::before {
  content:'';
  position:absolute;
  top:7px;
  left:6px;
  width:20px;
  height:2px;
  background:#2D2A26;
  box-shadow:0 8px 0 #2D2A26, 0 16px 0 #2D2A26;
  border-radius:2px;
}

/* ============================================================
   Hero — 大标题 + 胶片纹理背景
   ============================================================ */
.hero {
  min-height:75vh;
  display:flex;
  align-items:center;
  position:relative;
  background:
    radial-gradient(circle at 85% 20%, rgba(247,201,72,0.25) 0%, transparent 40%),
    radial-gradient(circle at 70% 80%, rgba(242,95,58,0.15) 0%, transparent 45%),
    linear-gradient(135deg, #FDF8F2 0%, #FDF0E5 50%, #FDE5D2 100%);
  overflow:hidden;
  padding-top:68px;
}
.hero::before {
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:10px;
  background:repeating-linear-gradient(90deg, #F25F3A 0px, #F25F3A 8px, transparent 8px, transparent 16px);
  opacity:0.5;
}
.hero::after {
  content:'🎬';
  position:absolute;
  right:4%;
  bottom:12%;
  font-size:9rem;
  opacity:0.07;
  transform:rotate(-15deg);
  pointer-events:none;
}
.hero-content {
  max-width:720px;
  position:relative;
  z-index:2;
}
.hero-eyebrow {
  display:inline-block;
  font-size:0.82rem;
  font-weight:700;
  padding:5px 16px;
  border-radius:20px;
  background:#F25F3A;
  color:#fff;
  letter-spacing:1.5px;
  box-shadow:3px 3px 0 rgba(37,109,133,0.25);
  margin-bottom:20px;
}
.hero h1 {
  font-size:3.4rem;
  font-weight:800;
  line-height:1.1;
  letter-spacing:-1.5px;
  color:#1F1D2B;
  margin-bottom:22px;
}
.hero h1 .text-accent {
  color:#F25F3A;
  position:relative;
}
.hero h1 .text-accent::after {
  content:'';
  position:absolute;
  bottom:4px;
  left:0;
  width:100%;
  height:4px;
  background:rgba(247,201,72,0.5);
  z-index:-1;
}
.hero p {
  font-size:1.1rem;
  color:#5C584F;
  max-width:560px;
  margin-bottom:32px;
  line-height:1.7;
}
.hero-buttons {
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.hero-image {
  border-radius:12px;
  overflow:hidden;
  position:absolute;
  right:-40px;
  top:50%;
  transform:translateY(-50%);
  width:45%;
  opacity:0.1;
  pointer-events:none;
}
.hero-image img {
  width:100%;
  height:auto;
}

/* ============================================================
   按钮 — 圆角 + 轻微阴影
   ============================================================ */
.btn {
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 30px;
  border-radius:8px;
  font-weight:600;
  font-size:0.95rem;
  cursor:pointer;
  border:none;
  text-decoration:none;
  transition:all 0.25s ease;
}
.btn-primary {
  color:#fff;
  background:linear-gradient(135deg,#F25F3A,#E0482D);
  box-shadow:0 4px 14px rgba(242,95,58,0.3);
}
.btn-primary:hover {
  transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(242,95,58,0.4);
}
.btn-outline {
  background:transparent;
  border:1.5px solid #256D85;
  color:#256D85;
}
.btn-outline:hover {
  background:rgba(37,109,133,0.08);
  transform:translateY(-2px);
}

/* ============================================================
   标签/标题
   ============================================================ */
.section-label {
  display:inline-block;
  font-size:0.78rem;
  font-weight:700;
  letter-spacing:3px;
  text-transform:uppercase;
  color:#F25F3A;
  margin-bottom:14px;
  background:rgba(242,95,58,0.08);
  padding:4px 14px;
  border-radius:4px;
}
.section-title {
  font-size:2.4rem;
  font-weight:800;
  line-height:1.2;
  letter-spacing:-0.5px;
  color:#1F1D2B;
  margin-bottom:16px;
}
.section-desc {
  max-width:600px;
  color:#6B6662;
  margin-bottom:44px;
  line-height:1.7;
}

/* ============================================================
   卡片网格 — 片库
   ============================================================ */
.cards-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:28px;
}
.category-card {
  background:#fff;
  border-radius:16px;
  padding:30px 28px;
  border:1px solid #EDE4DA;
  position:relative;
  overflow:hidden;
  transition:all 0.3s ease;
}
.category-card::before {
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:4px;
  background:linear-gradient(90deg,#F25F3A,#F7C948);
}
.category-card::after {
  content:'';
  position:absolute;
  bottom:-20px;
  right:-20px;
  width:60px;
  height:60px;
  border-radius:50%;
  background:rgba(37,109,133,0.05);
}
.category-card:hover {
  transform:translateY(-4px);
  box-shadow:0 10px 32px rgba(242,95,58,0.12);
  border-color:rgba(242,95,58,0.25);
}
.card-icon {
  width:52px;
  height:52px;
  border-radius:12px;
  background:linear-gradient(135deg,#F25F3A,#F7C948);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.4rem;
  margin-bottom:18px;
  box-shadow:2px 2px 0 rgba(37,109,133,0.2);
}
.card-link {
  font-weight:600;
  font-size:0.85rem;
  text-decoration:none;
  color:#256D85;
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:12px;
  transition:color 0.2s;
}
.card-link:hover {
  color:#F25F3A;
}
.card-link::after {
  content:'→';
  transition:transform 0.2s;
}
.card-link:hover::after {
  transform:translateX(4px);
}

/* ============================================================
   特性块 — 制作
   ============================================================ */
.feature-block {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.feature-image {
  border-radius:16px;
  overflow:hidden;
  position:relative;
  background:linear-gradient(135deg,#256D85,#1D5A6D);
  min-height:300px;
  box-shadow:8px 8px 0 rgba(242,95,58,0.15);
}
.feature-image::before {
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:8px;
  background:repeating-linear-gradient(90deg,#F25F3A 0px,#F25F3A 8px,transparent 8px,transparent 16px);
  opacity:0.6;
}
.feature-image img {
  width:100%;
  height:100%;
  object-fit:cover;
}
.feature-text h3 {
  font-size:1.8rem;
  font-weight:700;
  margin-bottom:12px;
  color:#1F1D2B;
}
.feature-text p {
  color:#6B6662;
  line-height:1.7;
  margin-bottom:20px;
}
.feature-list {
  list-style:none;
  margin-top:8px;
}
.feature-list li {
  padding:8px 0;
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:500;
  color:#4A4745;
}
.feature-list li::before {
  content:'✓';
  font-weight:700;
  color:#F25F3A;
  background:rgba(242,95,58,0.1);
  width:22px;
  height:22px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:0.7rem;
  flex-shrink:0;
}

/* ============================================================
   数据条 — 关于
   ============================================================ */
.stats-bar {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  text-align:center;
}
.stat-item {
  background:#fff;
  padding:36px 20px;
  border-radius:16px;
  border:1px solid #EDE4DA;
  position:relative;
  overflow:hidden;
  transition:all 0.3s ease;
}
.stat-item::before {
  content:'';
  position:absolute;
  top:0;
  left:50%;
  transform:translateX(-50%);
  width:40px;
  height:3px;
  background:#F25F3A;
  border-radius:0 0 4px 4px;
}
.stat-item:hover {
  transform:translateY(-4px);
  box-shadow:0 8px 24px rgba(37,109,133,0.1);
}
.stat-number {
  font-size:2.8rem;
  font-weight:800;
  color:#F25F3A;
  font-family:Georgia,'Times New Roman',serif;
  letter-spacing:-1px;
  line-height:1;
}
.stat-label {
  font-size:0.88rem;
  color:#8C8885;
  margin-top:8px;
  letter-spacing:0.5px;
}

/* ============================================================
   内容墙 — 产品中心
   ============================================================ */
.content-wall {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:28px;
}
.content-wall-item {
  background:#fff;
  border-radius:16px;
  overflow:hidden;
  border:1px solid #EDE4DA;
  transition:all 0.3s ease;
  position:relative;
}
.content-wall-item::after {
  content:'';
  position:absolute;
  bottom:0;
  left:0;
  width:100%;
  height:3px;
  background:linear-gradient(90deg,#F25F3A,#F7C948);
  opacity:0;
  transition:opacity 0.3s;
}
.content-wall-item:hover {
  transform:translateY(-4px);
  box-shadow:0 12px 32px rgba(45,42,38,0.08);
  border-color:rgba(242,95,58,0.2);
}
.content-wall-item:hover::after {
  opacity:1;
}
.content-wall-item img {
  width:100%;
  height:200px;
  object-fit:cover;
  background:linear-gradient(135deg,#F7C948,#F25F3A);
  display:block;
}
.content-wall-body {
  padding:22px;
}
.content-wall-body .card-icon {
  margin-bottom:12px;
  width:40px;
  height:40px;
  font-size:1.1rem;
  border-radius:10px;
}
.content-wall-body h3 {
  font-size:1.1rem;
  font-weight:700;
  margin-bottom:6px;
}
.content-wall-body p {
  font-size:0.85rem;
  color:#8C8885;
  line-height:1.6;
}

/* ============================================================
   FAQ — 联系
   ============================================================ */
.faq-list {
  max-width:800px;
  margin:0 auto;
}
.faq-item {
  background:#fff;
  border:1px solid #EDE4DA;
  border-radius:12px;
  margin-bottom:10px;
  overflow:hidden;
  cursor:pointer;
  transition:border-color 0.2s, box-shadow 0.2s;
}
.faq-item:hover {
  border-color:rgba(242,95,58,0.3);
}
.faq-item.open {
  border-color:rgba(242,95,58,0.4);
  box-shadow:0 4px 16px rgba(242,95,58,0.08);
}
.faq-item .faq-question {
  padding:18px 22px;
  font-weight:600;
  display:flex;
  justify-content:space-between;
  align-items:center;
  color:#2D2A26;
  font-size:1rem;
}
.faq-item .faq-question::after {
  content:'+';
  font-size:1.3rem;
  font-weight:400;
  color:#F25F3A;
  transition:transform 0.3s;
  flex-shrink:0;
}
.faq-item.open .faq-question::after {
  transform:rotate(45deg);
}
.faq-item .faq-answer {
  padding:0 22px 18px;
  display:none;
  color:#6B6662;
  font-size:0.9rem;
  line-height:1.7;
  border-top:1px dashed #EDE4DA;
  margin-top:0;
  padding-top:14px;
}
.faq-item.open .faq-answer {
  display:block;
  animation:fadeSlide 0.3s ease;
}
@keyframes fadeSlide {
  from { opacity:0; transform:translateY(-6px); }
  to { opacity:1; transform:translateY(0); }
}

/* ============================================================
   CTA横幅
   ============================================================ */
.cta-banner {
  padding:60px 32px;
  text-align:center;
  border-radius:20px;
  background:linear-gradient(135deg,#F25F3A,#E0482D 60%,#D6402A);
  color:#fff;
  position:relative;
  overflow:hidden;
  box-shadow:0 12px 40px rgba(242,95,58,0.25);
}
.cta-banner::before {
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:10px;
  background:repeating-linear-gradient(90deg,rgba(255,255,255,0.3) 0px,rgba(255,255,255,0.3) 8px,transparent 8px,transparent 16px);
}
.cta-banner::after {
  content:'✨';
  position:absolute;
  right:8%;
  top:50%;
  transform:translateY(-50%);
  font-size:3rem;
  opacity:0.3;
}
.cta-banner h2 {
  color:#fff;
  font-size:2rem;
  font-weight:800;
  letter-spacing:-0.5px;
  margin-bottom:12px;
  position:relative;
  z-index:1;
}
.cta-banner p {
  color:rgba(255,255,255,0.9);
  max-width:480px;
  margin:0 auto 28px;
  position:relative;
  z-index:1;
}
.cta-banner .btn-primary {
  background:#fff;
  color:#2D2A26;
  box-shadow:0 4px 16px rgba(0,0,0,0.12);
  position:relative;
  z-index:1;
}
.cta-banner .btn-primary:hover {
  box-shadow:0 6px 24px rgba(0,0,0,0.18);
  transform:translateY(-2px);
}

/* ============================================================
   页脚 — 暖米色 + 红线上框
   ============================================================ */
.site-footer {
  padding:60px 0 28px;
  background:#F5EDE4;
  border-top:4px solid #F25F3A;
}
.site-footer .container {
  max-width:1200px;
}
.footer-grid {
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand {
  padding-right:20px;
}
.footer-brand .logo {
  margin-bottom:16px;
}
.footer-brand p {
  font-size:0.9rem;
  color:#6B6662;
  line-height:1.7;
  max-width:300px;
}
.footer-col h4 {
  font-size:1rem;
  font-weight:700;
  margin-bottom:16px;
  color:#2D2A26;
  position:relative;
  padding-bottom:8px;
}
.footer-col h4::after {
  content:'';
  position:absolute;
  bottom:0;
  left:0;
  width:24px;
  height:2px;
  background:#F25F3A;
  border-radius:2px;
}
.footer-col ul {
  list-style:none;
}
.footer-col ul li {
  padding:5px 0;
}
.footer-col ul a {
  text-decoration:none;
  color:#6B6662;
  font-size:0.88rem;
  transition:color 0.2s, padding-left 0.2s;
}
.footer-col ul a:hover {
  color:#F25F3A;
  padding-left:4px;
}
.footer-bottom {
  border-top:1px solid rgba(45,42,38,0.1);
  margin-top:40px;
  padding-top:20px;
  text-align:center;
  font-size:0.82rem;
  color:#8C8885;
}

/* ============================================================
   工具类
   ============================================================ */
.text-accent {
  color:#F25F3A;
}
.text-center {
  text-align:center;
}
.seo-description {
  max-width:600px;
  margin:0 auto 48px;
  color:#6B6662;
  line-height:1.7;
}
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 768px) {
  .hero {
    padding-top:100px;
  }
  .hero h1 {
    font-size:2.2rem;
  }
  .hero p {
    font-size:1rem;
  }
  .hero::after {
    font-size:5rem;
  }
  .section {
    padding:60px 0;
  }
  .section-title {
    font-size:1.8rem;
  }
  .feature-block {
    grid-template-columns:1fr;
    gap:36px;
  }
  .feature-image {
    min-height:200px;
  }
  .stats-bar {
    grid-template-columns:repeat(2,1fr);
    gap:16px;
  }
  .stat-number {
    font-size:2rem;
  }
  .footer-grid {
    grid-template-columns:1fr 1fr;
    gap:28px;
  }
  .main-nav {
    display:none;
  }
  .menu-toggle {
    display:block;
  }
  .main-nav.open {
    display:flex;
    flex-direction:column;
    position:absolute;
    top:68px;
    left:0;
    width:100%;
    background:#FDF8F2;
    padding:20px 24px;
    gap:16px;
    box-shadow:0 8px 24px rgba(0,0,0,0.08);
    border-bottom:1px solid rgba(242,95,58,0.15);
  }
  .main-nav.open a {
    font-size:1rem;
    padding:8px 0;
  }
  .nav-cta {
    display:inline-block;
    text-align:center;
    margin-top:4px;
  }
  .cta-banner {
    padding:40px 20px;
  }
  .cta-banner h2 {
    font-size:1.5rem;
  }
}

@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;
    align-items:stretch;
  }
  .hero-buttons .btn {
    width:100%;
    justify-content:center;
  }
  .section {
    padding:48px 0;
  }
  .section-title {
    font-size:1.5rem;
  }
  .hero h1 {
    font-size:1.9rem;
  }
  .stat-number {
    font-size:1.8rem;
  }
  .container {
    padding:0 18px;
  }
  .header-inner {
    padding:0 18px;
  }
}