```css
/* ═══════════════════════════════════════════════════
   方寸荧屏 · 影视大全在线观看
   设计系统 — 复古剧场 / 暖纸美学 / 胶片语言
   ═══════════════════════════════════════════════════ */

:root {
  --paper: #F7F1E8;
  --paper-light: #FFFDF6;
  --mist: #F0E9DC;
  --ink: #21363B;
  --tomato: #E85A33;
  --gold: #F3B143;
  --teal: #2F7E7B;
  --line: #E5D9C8;
  --radius: 16px;
  --shadow-sm: 0 2px 8px rgba(214, 201, 180, 0.35);
  --shadow-md: 0 14px 40px rgba(164, 143, 120, 0.18);
  --shadow-lg: 0 28px 80px rgba(164, 143, 120, 0.22);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--paper);
  background-image: radial-gradient(circle at 12% 10%, rgba(243, 177, 67, 0.06) 0%, transparent 46%),
                    radial-gradient(circle at 88% 92%, rgba(232, 90, 51, 0.05) 0%, transparent 42%);
  color: var(--ink);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--gold); color: var(--ink); }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--paper); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--gold), var(--tomato));
  border-radius: 20px;
  border: 2px solid var(--paper);
}

/* ── 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: var(--mist);
}

/* ── 顶部导航 ── */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(247, 241, 232, 0.86);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 12px rgba(33, 54, 59, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.5px;
  text-decoration: none;
  color: var(--ink);
}

.logo-icon {
  position: relative;
  width: 38px;
  height: 38px;
  background: linear-gradient(145deg, var(--tomato) 0%, #D14A28 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: #fff;
  box-shadow: 0 6px 16px rgba(232, 90, 51, 0.35);
}

.logo-icon::after {
  content: '';
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  border: 2px dashed rgba(255, 255, 255, 0.55);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}

.main-nav a {
  position: relative;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink);
  padding: 6px 0;
  transition: color 0.25s;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--tomato);
  transition: width 0.25s ease;
}

.main-nav a:hover { color: var(--tomato); }
.main-nav a:hover::after { width: 100%; }

.nav-cta {
  background: var(--tomato) !important;
  color: #fff !important;
  padding: 9px 22px;
  border-radius: 100px;
  font-weight: 700 !important;
  box-shadow: 0 4px 14px rgba(232, 90, 51, 0.3);
  transition: transform 0.2s, box-shadow 0.2s;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232, 90, 51, 0.42);
}

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

.menu-toggle {
  display: none;
  align-items: center;
  gap: 6px;
  background: rgba(232, 90, 51, 0.08);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 9px 16px;
  color: var(--tomato);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: 0.2s;
}

.menu-toggle::before {
  content: '☰';
  font-size: 1.1rem;
  line-height: 1;
}

.menu-toggle:hover { background: rgba(232, 90, 51, 0.15); }

/* ── 首页 Hero ── */

.hero {
  min-height: 78vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 72px;
  padding: 128px 24px 88px;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse at 18% 20%, rgba(243, 177, 67, 0.14) 0%, transparent 55%),
              radial-gradient(ellipse at 82% 88%, rgba(232, 90, 51, 0.08) 0%, transparent 45%),
              var(--paper);
}

.hero::before {
  content: '影';
  position: absolute;
  top: 18%;
  left: 50%;
  transform: translateX(-50%);
  font-size: 26rem;
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 2px rgba(232, 90, 51, 0.08);
  z-index: 0;
  pointer-events: none;
  white-space: nowrap;
}

.hero-content {
  position: relative;
  z-index: 1;
  flex: 1 1 500px;
  max-width: 620px;
  animation: rise-in 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--tomato);
  background: rgba(232, 90, 51, 0.09);
  border: 1px solid rgba(232, 90, 51, 0.12);
  padding: 7px 18px;
  border-radius: 100px;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2.6rem, 4.6vw + 1rem, 4.4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -2px;
  margin-bottom: 22px;
}

.hero h1 strong {
  font-weight: 900;
  background: linear-gradient(120deg, var(--tomato), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.08rem;
  color: rgba(33, 54, 59, 0.68);
  max-width: 520px;
  margin-bottom: 34px;
  line-height: 1.8;
}

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

.hero-image {
  position: relative;
  z-index: 1;
  flex: 0 1 460px;
  height: 500px;
  border-radius: 20px;
  overflow: hidden;
  border: 4px solid var(--paper-light);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(145deg, var(--gold), var(--tomato));
  animation: rise-in 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) 0.1s both;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-image::before,
.hero-image::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 22px;
  z-index: 2;
  pointer-events: none;
}

.hero-image::before {
  top: 0;
  background: repeating-linear-gradient(90deg, var(--tomato) 0 34px, var(--paper-light) 34px 44px);
}

.hero-image::after {
  bottom: 0;
  background: repeating-linear-gradient(90deg, var(--gold) 0 34px, var(--paper-light) 34px 44px);
}

/* ── 按钮 ── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 32px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.3px;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

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

.btn-primary {
  background: var(--tomato);
  color: #fff;
  box-shadow: 0 8px 24px rgba(232, 90, 51, 0.32);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(232, 90, 51, 0.42);
}

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

.btn-outline:hover {
  background: rgba(33, 54, 59, 0.06);
  transform: translateY(-2px);
}

/* ── 标签 / 标题 ── */

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--tomato);
  background: rgba(232, 90, 51, 0.1);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.9rem, 3vw + 1rem, 2.7rem);
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: 14px;
}

.section-desc {
  max-width: 600px;
  color: rgba(33, 54, 59, 0.65);
  line-height: 1.75;
  margin-bottom: 44px;
}

/* ── 卡片网格 ── */

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

.category-card {
  position: relative;
  background: var(--paper-light);
  border: 1px solid var(--line);
  border-right: 2px dashed var(--line);
  border-radius: 14px;
  padding: 30px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.3s;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--tomato) 0 70%, var(--gold) 70%);
}

.category-card:hover {
  transform: translateY(-5px) rotate(-0.6deg);
  box-shadow: var(--shadow-md);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(232, 90, 51, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.3rem;
  color: var(--tomato);
}

.category-card:nth-child(2n) .card-icon {
  background: rgba(243, 177, 67, 0.15);
  color: #B87A1C;
}

.category-card:nth-child(3n) .card-icon {
  background: rgba(47, 126, 123, 0.12);
  color: var(--teal);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--tomato);
}

.card-link::after {
  content: '→';
  transition: transform 0.2s;
}

.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 {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.feature-image::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 18px;
  border: 2px solid var(--gold);
  transform: translate(16px, 16px);
  z-index: 0;
  pointer-events: none;
}

.feature-image img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.feature-text {
  position: relative;
  z-index: 1;
}

.feature-text h2 {
  font-size: 1.8rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.feature-text p {
  color: rgba(33, 54, 59, 0.68);
  line-height: 1.8;
}

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

.feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  font-weight: 500;
}

.feature-list li::before {
  content: '✓';
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(232, 90, 51, 0.12);
  color: var(--tomato);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 900;
  flex-shrink: 0;
}

/* ── 数据条 ── */

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-item {
  position: relative;
  background: var(--paper-light);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 36px 16px;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s, box-shadow 0.3s;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--tomato) 0 10px, transparent 10px 18px);
}

.stat-item:nth-child(2)::before {
  background: repeating-linear-gradient(90deg, var(--gold) 0 10px, transparent 10px 18px);
}

.stat-item:nth-child(3)::before {
  background: repeating-linear-gradient(90deg, var(--teal) 0 10px, transparent 10px 18px);
}

.stat-item:nth-child(4)::before {
  background: repeating-linear-gradient(90deg, var(--tomato) 0 10px, transparent 10px 18px);
}

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

.stat-number {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--tomato);
  line-height: 1.2;
}

.stat-item:nth-child(2) .stat-number { color: #B87A1C; }
.stat-item:nth-child(3) .stat-number { color: var(--teal); }
.stat-item:nth-child(4) .stat-number { color: #B87A1C; }

.stat-label {
  font-size: 0.9rem;
  color: rgba(33, 54, 59, 0.55);
  margin-top: 8px;
}

/* ── 内容墙 ── */

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

.content-wall-item {
  position: relative;
  background: var(--paper-light);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s, box-shadow 0.3s;
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.content-wall-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.content-wall-item:hover img { transform: scale(1.05); }

.content-wall-item::after {
  content: '▶';
  position: absolute;
  top: 84px;
  left: 50%;
  transform: translateX(-50%) scale(0.6);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255, 253, 246, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tomato);
  font-size: 15px;
  padding-left: 3px;
  box-shadow: 0 8px 24px rgba(33, 54, 59, 0.18);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

.content-wall-body {
  padding: 20px;
}

.content-wall-body h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.content-wall-body p {
  font-size: 0.85rem;
  color: rgba(33, 54, 59, 0.55);
}

/* ── FAQ ── */

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--paper-light);
  border: 1px solid var(--line);
  border-radius: 14px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.faq-item:hover { border-color: rgba(232, 90, 51, 0.3); }

.faq-item.open {
  border-color: rgba(232, 90, 51, 0.2);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 22px;
  font-weight: 700;
}

.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--tomato);
  flex-shrink: 0;
  transition: transform 0.3s;
}

.faq-item.open .faq-question { color: var(--tomato); }
.faq-item.open .faq-question::after { content: '−'; }

.faq-answer {
  display: none;
  padding: 0 22px 18px;
  color: rgba(33, 54, 59, 0.68);
  line-height: 1.75;
}

.faq-item.open .faq-answer {
  display: block;
  animation: fade-in 0.3s ease;
}

/* ── CTA 横幅 ── */

.cta-banner {
  position: relative;
  background: linear-gradient(135deg, var(--tomato) 0%, var(--gold) 100%);
  padding: 64px 24px;
  text-align: center;
  border-radius: 24px;
  color: #fff;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(232, 90, 51, 0.28);
}

.cta-banner::before {
  content: '✦ ✦ ✦';
  position: absolute;
  top: -40px;
  left: -10px;
  font-size: 10rem;
  color: rgba(255, 255, 255, 0.12);
  line-height: 1;
  pointer-events: none;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  letter-spacing: