/* ===== 光影胶片 · 复古电影杂志风 ===== */

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

html { scroll-behavior:smooth; }

body {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
  overflow-x:hidden;
  background-color:#faf6ef;
  color:#2a2a28;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}

body::before {
  content:'';
  position:fixed;
  inset:0;
  background-image:radial-gradient(rgba(26,42,58,0.04) 1px, transparent 1px);
  background-size:22px 22px;
  pointer-events:none;
  z-index:9999;
}

::selection { background:#e85d3f; color:#fff; }
::-webkit-scrollbar { width:8px; }
::-webkit-scrollbar-track { background:#faf6ef; }
::-webkit-scrollbar-thumb { background:#c9a96a; border-radius:4px; }
::-webkit-scrollbar-thumb:hover { background:#e85d3f; }

a { color:inherit; text-decoration:none; }
img { display:block; max-width:100%; }

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

.section {
  padding:96px 0;
  position:relative;
}

.section:nth-child(even) { background:#f3ece1; }

.section::before {
  content:'';
  position:absolute;
  top:0; left:0; right:0;
  height:6px;
  background:repeating-linear-gradient(90deg, #e85d3f 0 10px, #c9a96a 10px 20px, transparent 20px 32px);
  opacity:0.14;
  pointer-events:none;
}

.section::after {
  content:'';
  position:absolute;
  right:32px;
  bottom:32px;
  width:20px;
  height:20px;
  border-right:2px solid rgba(201,169,106,0.4);
  border-bottom:2px solid rgba(201,169,106,0.4);
  pointer-events:none;
}

/* ===== 导航 ===== */
.site-header {
  position:fixed;
  top:0; left:0;
  width:100%;
  z-index:1000;
  background:rgba(250,246,239,0.92);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(26,42,58,0.08);
  transition:box-shadow 0.3s ease;
}

.site-header:hover { box-shadow:0 6px 30px rgba(26,42,58,0.06); }

.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:900;
  font-size:1.25rem;
  letter-spacing:-0.02em;
  color:#1a2a3a;
}

.logo::after {
  content:'';
  width:6px;
  height:6px;
  background:#e85d3f;
  border-radius:50%;
  flex-shrink:0;
}

.logo-icon {
  width:38px;
  height:38px;
  border-radius:6px 6px 6px 2px;
  background:linear-gradient(135deg, #e85d3f, #c94c32);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1rem;
  color:#fff;
  position:relative;
  box-shadow:0 4px 14px rgba(232,93,63,0.35);
  flex-shrink:0;
}

.logo-icon::after {
  content:'';
  position:absolute;
  inset:-3px;
  border:1px solid rgba(201,169,106,0.5);
  border-radius:8px;
  pointer-events:none;
}

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

.main-nav a {
  text-decoration:none;
  font-size:0.92rem;
  font-weight:600;
  color:#1a2a3a;
  padding:6px 0;
  position:relative;
  transition:color 0.2s ease;
  letter-spacing:0.02em;
}

.main-nav a::after {
  content:'';
  position:absolute;
  left:0; bottom:0;
  width:0;
  height:2px;
  background:#e85d3f;
  transition:width 0.3s ease;
}

.main-nav a:hover { color:#e85d3f; }
.main-nav a:hover::after { width:100%; }

.nav-cta {
  padding:10px 26px;
  border-radius:4px;
  color:#fff !important;
  font-weight:800;
  background:linear-gradient(135deg, #e85d3f, #d94a2b);
  box-shadow:0 4px 16px rgba(232,93,63,0.35);
  transition:all 0.3s ease;
}

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

.nav-cta:hover {
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(232,93,63,0.45);
  color:#fff !important;
}

.menu-toggle {
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  background:rgba(26,42,58,0.06);
  border:none;
  border-radius:4px;
  cursor:pointer;
  position:relative;
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  content:'';
  position:absolute;
  left:12px;
  width:20px;
  height:2px;
  background:#1a2a3a;
  border-radius:2px;
  transition:transform 0.3s ease, top 0.3s ease, opacity 0.3s ease;
}

.menu-toggle span { top:21px; }
.menu-toggle::before { top:14px; }
.menu-toggle::after { top:28px; }

.menu-toggle.open span { opacity:0; }
.menu-toggle.open::before { top:21px; transform:rotate(45deg); }
.menu-toggle.open::after { top:21px; transform:rotate(-45deg); }

/* ===== 按钮 ===== */
.btn {
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 32px;
  border-radius:4px;
  font-weight:800;
  font-size:0.95rem;
  cursor:pointer;
  border:none;
  text-decoration:none;
  transition:all 0.3s ease;
  letter-spacing:0.03em;
  position:relative;
}

.btn-primary {
  background:linear-gradient(135deg, #e85d3f, #d94a2b);
  color:#fff;
  box-shadow:0 4px 0 #a33a26, 0 10px 24px rgba(232,93,63,0.3);
}

.btn-primary:hover {
  transform:translateY(-2px);
  box-shadow:0 6px 0 #a33a26, 0 14px 30px rgba(232,93,63,0.4);
}

.btn-primary:active {
  transform:translateY(2px);
  box-shadow:0 1px 0 #a33a26, 0 4px 12px rgba(232,93,63,0.3);
}

.btn-outline {
  background:transparent;
  border:2px solid #1a2a3a;
  color:#1a2a3a;
  box-shadow:0 4px 0 rgba(26,42,58,0.15);
}

.btn-outline:hover {
  background:#1a2a3a;
  color:#faf6ef;
  box-shadow:0 6px 0 rgba(26,42,58,0.25);
}

/* ===== Hero ===== */
.hero {
  min-height:82vh;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:64px;
  padding:140px 0 90px;
  margin:0 auto;
  max-width:1200px;
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(ellipse at 15% 80%, rgba(201,169,106,0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 85% 20%, rgba(232,93,63,0.08) 0%, transparent 50%),
    linear-gradient(180deg, #faf6ef 0%, #f6f0e6 100%);
}

.hero::before {
  content:'';
  position:absolute;
  top:0; left:0; right:0;
  height:12px;
  background:repeating-linear-gradient(90deg, #1a2a3a 0 6px, transparent 6px 20px);
  opacity:0.08;
  pointer-events:none;
}

.hero::after {
  content:'FILM';
  position:absolute;
  right:-10px;
  bottom:0;
  font-size:11rem;
  font-weight:900;
  line-height:1;
  letter-spacing:-0.04em;
  color:transparent;
  -webkit-text-stroke:2px rgba(232,93,63,0.12);
  pointer-events:none;
  transform:rotate(-6deg);
  z-index:1;
}

.hero-content {
  max-width:560px;
  flex:1;
  position:relative;
  z-index:2;
}

.hero-eyebrow {
  display:inline-block;
  font-size:0.78rem;
  font-weight:800;
  letter-spacing:2.5px;
  text-transform:uppercase;
  padding:6px 16px;
  border-radius:20px;
  background:#1a2a3a;
  color:#c9a96a;
  margin-bottom:22px;
  position:relative;
}

.hero-eyebrow::before {
  content:'';
  display:inline-block;
  width:7px;
  height:7px;
  background:#e85d3f;
  border-radius:50%;
  margin-right:8px;
  vertical-align:middle;
}

.hero h1 {
  font-size:3.6rem;
  line-height:1.12;
  font-weight:900;
  color:#1a2a3a;
  letter-spacing:-0.03em;
  margin-bottom:22px;
}

.hero h1 .text-accent {
  color:#e85d3f;
  position:relative;
  display:inline-block;
}

.hero h1 .text-accent::after {
  content:'';
  position:absolute;
  left:0; right:0;
  bottom:4px;
  height:8px;
  background:rgba(201,169,106,0.35);
  border-radius:4px;
  z-index:-1;
}

.hero p {
  font-size:1.1rem;
  opacity:0.75;
  color:#4a4a48;
  max-width:480px;
  margin-bottom:36px;
  line-height:1.8;
  border-left:3px solid #c9a96a;
  padding-left:18px;
}

.hero-buttons {
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  position:relative;
  z-index:2;
}

.hero-image {
  flex:1;
  max-width:460px;
  border-radius:4px;
  overflow:hidden;
  position:relative;
  border:8px solid #fff;
  box-shadow:0 24px 60px rgba(26,42,58,0.15);
  outline:1px solid rgba(26,42,58,0.08);
  animation:filmFloat 6s ease-in-out infinite;
}

.hero-image::before,
.hero-image::after {
  content:'';
  position:absolute;
  left:0; right:0;
  height:10px;
  z-index:2;
  background:repeating-linear-gradient(90deg, #1a2a3a 0 6px, transparent 6px 16px);
}

.hero-image::before { top:0; }
.hero-image::after { bottom:0; }

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

@keyframes filmFloat {
  0%, 100% { transform:rotate(2deg) translateY(0); }
  50% { transform:rotate(2deg) translateY(-8px); }
}

/* ===== Section 标签标题 ===== */
.section-label {
  display:inline-block;
  font-size:0.8rem;
  font-weight:800;
  letter-spacing:3px;
  text-transform:uppercase;
  color:#e85d3f;
  padding-bottom:6px;
  margin-bottom:16px;
  border-bottom:2px solid #c9a96a;
  position:relative;
}

.section-label::after {
  content:'';
  position:absolute;
  left:0;
  bottom:-2px;
  width:8px;
  height:2px;
  background:#e85d3f;
}

.section-title {
  font-size:2.5rem;
  font-weight:900;
  color:#1a2a3a;
  letter-spacing:-0.02em;
  line-height:1.2;
  margin-bottom:16px;
}

.section-desc {
  max-width:600px;
  opacity:0.7;
  color:#4a4a48;
  margin-bottom:48px;
  font-size:1.05rem;
  line-height:1.8;
}

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

.category-card {
  border-radius:4px;
  padding:32px 28px;
  background:#fff;
  border:1px solid rgba(26,42,58,0.06);
  border-top:4px solid transparent;
  transition:all 0.35s ease;
  position:relative;
  box-shadow:0 2px 8px rgba(26,42,58,0.04);
}

.category-card::before {
  content:'';
  position:absolute;
  top:0; left:0;
  width:100%;
  height:4px;
  background:linear-gradient(90deg, #e85d3f, #c9a96a);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform 0.4s ease;
}

.category-card:hover {
  transform:translateY(-5px);
  box-shadow:0 14px 36px rgba(26,42,58,0.08);
  border-color:rgba(232,93,63,0.15);
}

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

.card-icon {
  width:52px;
  height:52px;
  border-radius:4px;
  background:linear-gradient(135deg, rgba(232,93,63,0.12), rgba(201,169,106,0.12));
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
  font-size:1.4rem;
  color:#e85d3f;
  transition:transform 0.35s ease;
}

.category-card:hover .card-icon {
  transform:rotate(-8deg) scale(1.05);
  background:linear-gradient(135deg, rgba(232,93,63,0.2), rgba(201,169,106,0.2));
}

.card-link {
  font-weight:800;
  font-size:0.9rem;
  text-decoration:none;
  color:#e85d3f;
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  transition:gap 0.3s ease;
}

.card-link::after {
  content:'→';
  transition:transform 0.3s ease;
}

.card-link:hover::after {
  transform:translateX(4px);
}

/* ===== 特性块 ===== */
.feature-block {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:72px;
  align-items:center;
}

.feature-image {
  border-radius:4px;
  overflow:hidden;
  position:relative;
  box-shadow:0 16px 44px rgba(26,42,58,0.1);
  border:6px solid #fff;
  transform:rotate(-1.5deg);
  transition:transform 0.4s ease;
}

.feature-image:hover { transform:rotate(0deg) scale(1.01); }

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

.feature-text { position:relative; }

.feature-list {
  list-style:none;
  margin-top:24px;
}

.feature-list li {
  padding:10px 0;
  display:flex;
  align-items:center;
  gap:12px;
  font-weight:600;
  color:#2a2a28;
  border-bottom:1px dashed rgba(26,42,58,0.1);
}

.feature-list li:last-child { border-bottom:none; }

.feature-list li::before {
  content:'✓';
  font-weight:900;
  color:#e85d3f;
  background:rgba(232,93,63,0.1);
  width:24px;
  height:24px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:0.75rem;
  flex-shrink:0;
  line-height:1;
}

/* ===== 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:4px;
  background:#fff;
  border:1px solid rgba(26,42,58,0.06);
  position:relative;
  overflow:hidden;
  transition:all 0.3s ease;
}

.stat-item::after {
  content:'';
  position:absolute;
  bottom:0; left:0;
  width:100%;
  height:3px;
  background:linear-gradient(90deg, #e85d3f, #c9a96a);
  transform:scaleX(0);
  transition:transform 0.4s ease;
}

.stat-item:hover {
  transform:translateY(-3px);
  box-shadow:0 10px 24px rgba(26,42,58,0.06);
}

.stat-item:hover::after { transform:scaleX(1); }

.stat-number {
  font-size:2.6rem;
  font-weight:900;
  color:#e85d3f;
  line-height:1;
  letter-spacing:-0.03em;
  font-variant-numeric:tabular-nums;
}

.stat-label {
  font-size:0.9rem;
  opacity:0.6;
  color:#4a4a48;
  margin-top:8px;
  font-weight:500;
  letter-spacing:1px;
}

/* ===== 内容墙 ===== */
.content-wall {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:28px;
}

.content-wall-item {
  border-radius:4px;
  overflow:hidden;
  background:#fff;
  border:1px solid rgba(26,42,58,0.06);
  transition:all 0.35s ease;
  position:relative;
}

.content-wall-item::after {
  content:'';
  position:absolute;
  top:0; left:0; right:0;
  height:6px;
  background:repeating-linear-gradient(90deg, #1a2a3a 0 8px, transparent 8px 16px);
  opacity:0.5;
  transition:opacity 0.3s ease;
  z-index:2;
}

.content-wall-item::before {
  content:'▶';
  position:absolute;
  top:42%; left:50%;
  transform:translate(-50%, -50%) scale(0.5);
  width:48px;
  height:48px;
  background:rgba(255,255,255,0.92);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:0.9rem;
  color:#e85d3f;
  opacity:0;
  transition:all 0.3s ease;
  z-index:3;
  box-shadow:0 4px 16px rgba(0,0,0,0.15);
  font-family:sans-serif;
}

.content-wall-item:hover {
  transform:translateY(-5px);
  box-shadow:0 14px 36px rgba(26,42,58,0.1);
}

.content-wall-item:hover::after { opacity:1; }
.content-wall-item:hover::before { opacity:1; transform:translate(-50%, -50%) scale(1); }

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

.content-wall-item:hover img { transform:scale(1.04); }

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

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

.faq-item {
  border:1px solid rgba(26,42,58,0.08);
  border-radius:4px;
  margin-bottom:10px;
  overflow:hidden;
  background:#fff;
  transition:border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item:hover {
  border-color:rgba(232,93,63,0.4);
  box-shadow:0 4px 16px rgba(26,42,58,0.04);
}

.faq-item .faq-question {
  padding:20px 24px;
  font-weight:700;
  font-size:0.98rem;
  color:#1a2a3a;
  display:flex;
  justify-content:space-between;
  align-items:center;
  cursor:pointer;
  background:#fff;
}

.faq-item .faq-question::after {
  content:'+';
  font-size:1.5rem;
  font-weight:300;
  color:#e85d3f;
  transition:transform 0.3s ease;
  line-height:1;
}

.faq-item.open .faq-question::after {
  content:'−';
  transform:rotate(180deg);
}

.faq-item .faq-answer {
  padding:0 24px 20px;
  display:none;
  opacity:0.75;
  line-height:1.9;
  color:#4a4a48;
  font-size:0.95rem;
}

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

/* ===== CTA横幅 ===== */
.cta-banner {
  padding:64px 40px;
  text-align:center;
  border-radius:8px;
  color:#fff;
  background:linear-gradient(135deg, #e85d3f, #f08a5b);
  position:relative;
  overflow:hidden;
}

.cta-banner::before {
  content:'';
  position:absolute;
  top:-60%; left:-50%;
  width:200%; height:200%;
  background:repeating-linear-gradient(45deg, transparent 0 20px, rgba(255,255,255,0.08) 20px 21px);
  animation:ctaStripes 18s linear infinite;
  pointer-events:none;
}

.cta-banner::after {
  content:'';
  position:absolute;
  bottom:0; left:0; right:0;
  height:6px;
  background:repeating-linear-gradient(90deg, #1a2a3a 0 12px, #c9a96a 12px 24px, transparent 24px 36px);
}

.cta-banner h2 {
  color:#fff !important;
  font-size:2.1rem;
  font-weight:900;
  margin-bottom:12px;
  position:relative;
  z-index:1;
  letter-spacing:-0.02em;
}

.cta-banner p {
  opacity:0.85;
  margin-bottom:28px;
  position:relative;
  z-index:1;
  font-size:1.05rem;
}

.cta-banner .btn-primary {
  background:#fff;
  color:#e85d3f;
  box-shadow:0 4px 0 rgba(255,255,255,0.3), 0 10px 24px rgba(0,0,0,0.1);
  position:relative;
  z-index:1;
}

.cta-banner .btn-primary:hover {
  box-shadow:0 6px 0 rgba(255,255,255,0.4), 0 14px 30px rgba(0,0,0,0.15);
}

@keyframes ctaStripes {
  from { transform:translateX(0); }
  to { transform:translateX(28px); }
}

/* ===== 页脚 ===== */
.site-footer {
  padding:64px 0 28px;
  background:#f3ece1;
  border-top:1px solid rgba(26,42,58,0.06);
  position:relative;
}

.site-footer .container { position:relative; }

.footer-grid {
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:48px;
}

.footer-brand p {
  opacity:0.7;
  margin-top:14px;
  font-size:0.9rem;
  line-height:1.7;
  color:#4a4a48;
  max-width:280px;
}

.footer-col h4 {
  font-size:0.95rem;
  font-weight:800;
  color:#1a2a3a;
  margin-bottom:18px;
  letter-spacing:1px;
  position:relative;
}

.footer-col h4::before {
  content:'';
  position:absolute;
  left:0; bottom:-6px;
  width:18px;
  height:2px;
  background:#e85d3f;
}

.footer-col a {
  display:block;
  text-decoration:none;
  color:#4a4a48;
  font-size:0.9rem;
  padding:5px 0;
  transition:color 0.2s ease, padding-left 0.2s ease;
}

.footer-col a:hover {
  color:#e85d3f;
  padding-left:4px;
}

.footer-bottom {
  border-top:1px solid rgba(26,42,58,0.08);
  margin-top:48px;
  padding-top:24px;
  text-align:center;
  font-size:0.85rem;
  color:#8a8a88;
}

/* ===== 工具类 ===== */
.text-accent { color:#e85d3f; }

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

.seo-description {
  max-width:600px;
  margin:0 auto 48px;
  opacity:0.7;
  line-height:1.8;
  color:#4a4a48;
  font-size:1rem;
}

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

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .hero {
    flex-direction:column;
    padding:110px 24px 60px;
    min-height:auto;
    gap:48px;
  }

  .hero-content { max-width:100%; }
  .hero h1 { font-size:2.4rem; }
  .hero::after { font-size:7rem; right:10px; }
  .hero-image { max-width:100%; width:100%; }

  .section { padding:72px 0; }
  .section-title { font-size:2rem; }

  .feature-block {
    grid-template-columns:1fr;
    gap:40px;
  }

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

  .footer-grid {
    grid-template-columns:1fr 1fr;
    gap:32px;
  }

  .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:#faf6ef;
    padding:24px;
    box-shadow:0 16px 32px rgba(26,42,58,0.08);
    gap:6px;
  }

  .main-nav.open a {
    width:100%;
    padding:12px 0;
    border-bottom:1px solid rgba(26,42,58,0.06);
    font-size:1rem;
  }

  .main-nav.open a::after { display:none; }

  .main-nav.open .nav-cta {
    width:auto;
    text-align:center;
    margin-top:8px;
  }

  .cta-banner {
    padding:48px 24px;
    border-radius:6px;
  }

  .cta-banner h2 { font-size:1.7rem; }
}

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

  .footer-grid {
    grid-template-columns:1fr;
    gap:32px;
  }

  .hero-buttons {
    flex-direction:column;
  }

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

  .hero h1 { font-size:2rem; }
  .hero p { font-size:1rem; }

  .section-title { font-size:1.7rem; }

  .section-label { letter-spacing:2px; }

  .stat-number { font-size:2rem; }
}