/* 国产好剧 · 朱砂宣纸设计系统 */
:root {
  --paper: #FAF4EB;
  --paper-deep: #EFE9DE;
  --paper-card: #FFFDF9;
  --ink: #2D2A26;
  --ink-soft: #4D4A44;
  --cinnabar: #C43B2E;
  --cinnabar-dark: #A32D21;
  --goldfine: #BFA974;
  --goldline: rgba(191,169,116,0.45);
  --mist: #E7ECEF;
  --jade: #4F7D7C;
  --card-shadow: rgba(122,92,57,0.16);
}

/* 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:
    radial-gradient(ellipse at 12% 8%, rgba(191,169,116,0.10) 0%, transparent 45%),
    radial-gradient(ellipse at 88% 92%, rgba(196,59,46,0.07) 0%, transparent 40%),
    var(--paper);
  color: var(--ink);
  line-height: 1.65;
  letter-spacing: 0.01em;
}

/* 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:
    linear-gradient(135deg, rgba(255,255,255,0.45) 0%, transparent 100%),
    var(--mist);
}

/* 导航 — 固定顶部 */
.site-header {
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:1000;
  background: rgba(250,244,235,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--goldline);
  box-shadow: 0 4px 30px -20px rgba(122,92,57,0.25);
}

.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:1.15rem;
  text-decoration:none;
  color:var(--ink);
  letter-spacing:0.02em;
}

.logo-icon {
  width:36px;
  height:36px;
  border-radius:3px 10px 3px 10px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:0.95rem;
  background:var(--cinnabar);
  color:#fff;
  box-shadow:3px 3px 0 rgba(196,59,46,0.22);
}

.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(--ink-soft);
  padding:4px 0;
  position:relative;
  letter-spacing:0.04em;
  transition:color 0.25s;
}

.main-nav a::after {
  content:'';
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:1.5px;
  background:var(--cinnabar);
  transition:width 0.3s ease;
}

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

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

.nav-cta {
  padding:8px 22px;
  border-radius:3px 10px 3px 10px;
  color:#fff!important;
  font-weight:600!important;
  background:var(--cinnabar);
  box-shadow:3px 3px 0 rgba(196,59,46,0.22);
  transition:background 0.2s, transform 0.2s, box-shadow 0.2s;
}

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

.nav-cta:hover {
  color:#fff!important;
  background:var(--cinnabar-dark);
  transform:translateY(-1px);
  box-shadow:4px 4px 0 rgba(196,59,46,0.18);
}

.menu-toggle {
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--goldline);
  border-radius:3px 10px 3px 10px;
  background:
    linear-gradient(var(--ink), var(--ink)) 50% 28% / 20px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) 50% 50% / 20px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) 50% 72% / 20px 2px no-repeat;
  cursor:pointer;
  transition:border-color 0.25s;
}

.menu-toggle:hover {
  border-color:var(--cinnabar);
}

/* 首页 Hero */
.hero {
  min-height:75vh;
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:60px;
  padding:140px 0 80px;
  position:relative;
  background:
    radial-gradient(ellipse at 80% 30%, rgba(196,59,46,0.08) 0%, transparent 45%);
}

.hero::before {
  content:'';
  position:absolute;
  top:110px;
  right:5%;
  width:110px;
  height:110px;
  border:2px solid var(--goldfine);
  border-radius:5px 30px 5px 30px;
  opacity:0.35;
  pointer-events:none;
}

.hero-content {
  flex:1;
  min-width:320px;
  max-width:680px;
}

.hero-eyebrow {
  display:inline-block;
  font-size:0.78rem;
  font-weight:700;
  letter-spacing:0.28em;
  padding:6px 18px;
  border-radius:2px 10px 2px 10px;
  background:var(--cinnabar);
  color:#fff;
  margin-bottom:18px;
  text-transform:uppercase;
  box-shadow:4px 4px 0 rgba(196,59,46,0.20);
}

.hero h1 {
  font-size:clamp(2.5rem, 5vw, 3.6rem);
  font-weight:900;
  line-height:1.15;
  margin-bottom:22px;
  letter-spacing:-0.015em;
  color:var(--ink);
  position:relative;
  z-index:1;
}

.hero p {
  font-size:1.08rem;
  line-height:1.7;
  opacity:0.68;
  max-width:540px;
  margin-bottom:34px;
  color:var(--ink-soft);
}

.hero-buttons {
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}

.hero-image {
  flex:1;
  min-width:300px;
  border-radius:4px 24px 4px 24px;
  border:1px solid #E7DFD2;
  box-shadow:10px 10px 0 rgba(191,169,116,0.22);
  overflow:hidden;
  position:relative;
  background:var(--paper-deep);
}

.hero-image::after {
  content:'';
  position:absolute;
  top:10px;
  right:10px;
  width:50px;
  height:26px;
  background:var(--cinnabar);
  border-radius:2px 8px 2px 8px;
  box-shadow:3px 3px 0 rgba(196,59,46,0.2);
  z-index:2;
}

.hero-image img {
  width:100%;
  height:100%;
  min-height:360px;
  object-fit:cover;
  display:block;
}

/* 按钮 */
.btn {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 30px;
  border-radius:3px 14px 3px 14px;
  font-weight:600;
  font-size:0.94rem;
  cursor:pointer;
  border:none;
  text-decoration:none;
  transition:all 0.25s cubic-bezier(0.25, 0.5, 0.25, 1);
  letter-spacing:0.03em;
}

.btn-primary {
  background:var(--cinnabar);
  color:#fff;
  box-shadow:5px 5px 0 rgba(196,59,46,0.25);
}

.btn-primary:hover {
  background:var(--cinnabar-dark);
  transform:translate(-1px, -1px);
  box-shadow:7px 7px 0 rgba(196,59,46,0.22);
}

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

.btn-outline:hover {
  background:rgba(196,59,46,0.06);
  border-color:var(--cinnabar-dark);
  transform:translateY(-1px);
}

/* 标签/标题 */
.section-label {
  display:inline-block;
  font-size:0.75rem;
  font-weight:700;
  letter-spacing:0.25em;
  padding:5px 16px;
  color:var(--cinnabar);
  border-left:3px solid var(--cinnabar);
  background:rgba(196,59,46,0.07);
  border-radius:0 8px 0 8px;
  margin-bottom:14px;
  text-transform:uppercase;
}

.section-title {
  font-size:2.2rem;
  font-weight:900;
  line-height:1.25;
  margin-bottom:14px;
  letter-spacing:-0.01em;
  color:var(--ink);
}

.section-desc {
  max-width:600px;
  opacity:0.68;
  line-height:1.7;
  margin-bottom:44px;
  color:var(--ink-soft);
}

/* 卡片网格 */
.cards-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:26px;
}

.category-card {
  border-radius:3px 18px 3px 18px;
  padding:30px 28px;
  background:var(--paper-card);
  border:1px solid #E8E0D4;
  box-shadow:5px 5px 0 var(--card-shadow);
  transition:all 0.3s cubic-bezier(0.25, 0.5, 0.25, 1);
  position:relative;
}

.category-card::before {
  content:'';
  position:absolute;
  top:0;
  right:0;
  width:36px;
  height:36px;
  border-radius:0 18px 0 0;
  background:linear-gradient(135deg, transparent 50%, rgba(196,59,46,0.14) 50%);
  pointer-events:none;
}

.category-card:hover {
  transform:translate(-3px, -5px);
  box-shadow:9px 9px 0 rgba(196,59,46,0.18);
  border-color:rgba(196,59,46,0.35);
}

.card-icon {
  width:48px;
  height:48px;
  border-radius:3px 12px 3px 12px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
  font-size:1.3rem;
  background:#F5EDE1;
  color:var(--cinnabar);
  box-shadow:2px 2px 0 rgba(191,169,116,0.24);
}

.category-card h3 {
  font-size:1.08rem;
  font-weight:700;
  margin-bottom:6px;
  color:var(--ink);
}

.category-card p {
  font-size:0.85rem;
  color:#8A8074;
  line-height:1.6;
  margin-bottom:14px;
}

.card-link {
  font-weight:600;
  font-size:0.85rem;
  color:var(--cinnabar);
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  gap:4px;
  border-bottom:2px solid transparent;
  transition:border-color 0.2s;
}

.card-link:hover {
  border-bottom-color:var(--cinnabar);
}

/* 特性块 */
.feature-block {
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  gap:72px;
  align-items:center;
}

.feature-image {
  border-radius:4px 22px 4px 22px;
  overflow:hidden;
  border:1px solid #E2DACF;
  box-shadow:9px 9px 0 rgba(191,169,116,0.24);
  position:relative;
}

.feature-image::after {
  content:'';
  position:absolute;
  bottom:12px;
  left:12px;
  width:56px;
  height:8px;
  background:var(--cinnabar);
  border-radius:0 4px 0 4px;
  opacity:0.75;
}

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

.feature-text h3 {
  font-size:1.7rem;
  font-weight:800;
  margin-bottom:16px;
  color:var(--ink);
}

.feature-text p {
  margin-bottom:18px;
  color:var(--ink-soft);
  opacity:0.78;
  line-height:1.7;
}

.feature-list {
  list-style:none;
  margin-top:8px;
}

.feature-list li {
  padding:7px 0;
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:500;
  color:var(--ink-soft);
}

.feature-list li::before {
  content:'✓';
  font-weight:800;
  color:var(--cinnabar);
  background:rgba(196,59,46,0.10);
  width:22px;
  height:22px;
  border-radius:3px 7px 3px 7px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  flex-shrink:0;
}

/* 数据条 */
.stats-bar {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:26px;
  text-align:center;
}

.stat-item {
  padding:30px 18px;
  border-radius:3px 18px 3px 18px;
  background:var(--paper-card);
  border:1px solid #E8E0D4;
  box-shadow:6px 6px 0 rgba(196,59,46,0.12);
  transition:transform 0.3s, box-shadow 0.3s;
}

.stat-item:hover {
  transform:translateY(-3px);
  box-shadow:8px 8px 0 rgba(191,169,116,0.28);
}

.stat-number {
  font-family:'Songti SC', 'STSong', Georgia, serif;
  font-size:2.6rem;
  font-weight:800;
  line-height:1;
  color:var(--cinnabar);
}

.stat-label {
  font-size:0.88rem;
  opacity:0.6;
  margin-top:10px;
  color:var(--ink-soft);
  letter-spacing:0.08em;
}

/* 内容墙 */
.content-wall {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(270px,1fr));
  gap:26px;
}

.content-wall-item {
  border-radius:3px 18px 3px 18px;
  overflow:hidden;
  background:var(--paper-card);
  border:1px solid #E8E0D4;
  box-shadow:4px 4px 0 var(--card-shadow);
  transition:all 0.35s cubic-bezier(0.25, 0.5, 0.25, 1);
  position:relative;
}

.content-wall-item::after {
  content:'';
  position:absolute;
  top:0;
  right:0;
  width:24px;
  height:24px;
  background:linear-gradient(135deg, transparent 50%, rgba(196,59,46,0.30) 50%);
  border-radius:0 0 0 8px;
  opacity:0;
  transition:opacity 0.25s;
  z-index:3;
  pointer-events:none;
}

.content-wall-item:hover {
  transform:translateY(-6px);
  box-shadow:7px 9px 0 rgba(196,59,46,0.16);
  border-color:rgba(196,59,46,0.30);
}

.content-wall-item:hover::after {
  opacity:1;
}

.content-wall-item img {
  width:100%;
  height:200px;
  object-fit:cover;
  display:block;
  transition:transform 0.5s cubic-bezier(0.25, 0.5, 0.25, 1);
}

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

.content-wall-body {
  padding:22px 20px 20px;
  border-top:1px solid #EFE9DF;
}

.content-wall-body h3 {
  font-size:1rem;
  font-weight:700;
  color:var(--ink);
  margin-bottom:4px;
  letter-spacing:0.02em;
}

.content-wall-body p {
  font-size:0.83rem;
  color:#948A7E;
  line-height:1.5;
}

/* FAQ */
.faq-list {
  max-width:780px;
  margin:0 auto;
}

.faq-item {
  border:1px solid #E5DDD1;
  border-radius:3px 14px 3px 14px;
  margin-bottom:10px;
  overflow:hidden;
  background:rgba(255,253,249,0.7);
  transition:border-color 0.25s, box-shadow 0.25s;
}

.faq-item:hover {
  border-color:var(--goldfine);
}

.faq-item .faq-question {
  padding:18px 22px;
  font-weight:600;
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:0.96rem;
  color:var(--ink);
  cursor:pointer;
}

.faq-item .faq-question::after {
  content:'+';
  font-size:1.3rem;
  font-weight:300;
  color:var(--cinnabar);
  line-height:1;
  transition:transform 0.2s;
}

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

.faq-item .faq-answer {
  padding:0 22px 18px;
  display:none;
  opacity:0.72;
  font-size:0.9rem;
  line-height:1.7;
  color:var(--ink-soft);
}

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

/* CTA横幅 */
.cta-banner {
  margin:80px 0;
  padding:60px 32px;
  text-align:center;
  border-radius:4px 28px 4px 28px;
  color:#fff;
  background:
    radial-gradient(ellipse at 18% 20%, rgba(255,255,255,0.28) 0%, transparent 50%),
    radial-gradient(ellipse at 85% 70%, rgba(255,255,255,0.10) 0%, transparent 40%),
    linear-gradient(135deg, var(--cinnabar-dark) 0%, var(--cinnabar) 60%, #E06852 100%);
  box-shadow:12px 12px 0 rgba(196,59,46,0.16);
  position:relative;
  overflow:hidden;
}

.cta-banner::before {
  content:'';
  position:absolute;
  top:-50px;
  right:-50px;
  width:160px;
  height:160px;
  border:3px solid rgba(255,255,255,0.18);
  border-radius:50%;
  pointer-events:none;
}

.cta-banner h2 {
  color:#fff;
  font-size:2rem;
  font-weight:900;
  margin-bottom:14px;
  letter-spacing:-0.01em;
}

.cta-banner p {
  color:rgba(255,255,255,0.82);
  max-width:520px;
  margin:0 auto 30px;
  font-size:1rem;
}

.cta-banner .btn-primary {
  background:#fff;
  color:var(--cinnabar);
  box-shadow:5px 5px 0 rgba(0,0,0,0.18);
}

.cta-banner .btn-primary:hover {
  background:#F5EFE7;
  color:var(--cinnabar-dark);
  box-shadow:7px 7px 0 rgba(0,0,0,0.14);
}

/* 页脚 */
.site-footer {
  padding:64px 0 28px;
  margin-top:60px;
  background:
    linear-gradient(180deg, var(--paper) 0%, #F2E9DC 100%);
  border-top:2px solid var(--cinnabar);
}

.site-footer .container {
  max-width:1200px;
}

.footer-grid {
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:44px;
}

.footer-brand {
  padding-right:30px;
}

.footer-brand p {
  font-size:0.88rem;
  color:var(--ink-soft);
  opacity:0.72;
  line-height:1.7;
  margin-top:14px;
}

.footer-col h4 {
  font-size:0.9rem;
  font-weight:700;
  margin-bottom:14px;
  color:var(--ink);
  letter-spacing:0.06em;
}

.footer-col ul {
  list-style:none;
}

.footer-col ul li {
  margin-bottom:8px;
}

.footer-col ul li a {
  font-size:0.86rem;
  color:var(--ink-soft);
  opacity:0.72;
  text-decoration:none;
  transition:color 0.2s, opacity 0.2s;
}

.footer-col ul li a:hover {
  color:var(--cinnabar);
  opacity:1;
}

.footer-bottom {
  border-top:1px solid var(--goldline);
  margin-top:44px;
  padding-top:22px;
  text-align:center;
  font-size:0.82rem;
  color:var(--ink-soft);
  opacity:0.7;
}

/* 工具类 */
.text-accent {
  color:var(--cinnabar);
  font-weight:700;
}

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

.seo-description {
  max-width:600px;
  margin:0 auto 48px;
  opacity:0.7;
  line-height:1.75;
  color:var(--ink-soft);
}

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

/* ⚠️ 响应式 */
@media (max-width: 1024px) {
  .hero { gap:40px; }
  .feature-block { gap:40px; }
}

@media (max-width: 768px) {
  .hero { padding:120px 0 60px; }
  .hero h1 { font-size:2.4rem; }

  .feature-block {
    grid-template-columns:1fr;
    gap:36px;
  }

  .feature-image img {
    max-height:320px;
  }

  .stats-bar {
    grid-template-columns:repeat(2,1fr);
    gap:18px;
  }

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

  .main-nav {
    display:none;
  }

  .menu-toggle {
    display:block;
  }

  .main-nav.open {
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    position:absolute;
    top:68px;
    left:0;
    width:100%;
    background:rgba(250,244,235,0.98);
    backdrop-filter:blur(14px);
    padding:24px 28px 32px;
    gap:18px;
    border-bottom:1px solid var(--goldline);
    box-shadow:0 18px 40px -24px rgba(0,0,0,0.28);
    list-style:none;
  }

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

  .main-nav.open .nav-cta {
    color:#fff!important;
    padding:10px 24px;
    margin-top:8px;
  }

  .hero::before {
    display:none;
  }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns:1fr;
    gap:18px;
  }

  .footer-grid {
    grid-template-columns:1fr;
    gap:28px;
  }

  .hero-buttons {
    flex-direction:column;
    align-items:stretch;
  }

  .btn {
    justify-content:center;
  }

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

  .hero h1 {
    font-size:2.1rem;
  }

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

  .cta-banner {
    padding:44px 20px;
  }
  .cta-banner h2 {
    font-size:1.5rem;
  }
}