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

:root {
  --paper: #FBF6EC;
  --paper-deep: #F2EBDE;
  --ink: #2B2B26;
  --coral: #FF4B2E;
  --teal: #008F7A;
  --mustard: #FFC53A;
  --cream: #FFFDF8;
  --line: #2B2B26;
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
  line-height: 1.6;
}

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

.section {
  padding: 100px 0;
  position: relative;
}
.section:nth-child(even) { background: var(--paper-deep); }

/* 半调网点装饰 */
.section:nth-child(even)::before,
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-image: radial-gradient(var(--ink) 1.2px, transparent 1.2px);
  background-size: 14px 14px;
  opacity: 0.045;
  pointer-events: none;
  z-index: 0;
}
.container, .hero-content, .feature-text, .cards-grid,
.stats-bar, .content-wall, .faq-list, .cta-banner, .footer-grid {
  position: relative; z-index: 1;
}

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(253, 249, 240, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--line);
}
.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: 1.35rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.logo-icon {
  width: 36px; height: 36px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: var(--coral);
  color: #fff;
  box-shadow: 3px 3px 0 var(--line);
  transform: rotate(-3deg);
  transition: transform 0.2s;
}
.logo:hover .logo-icon { transform: rotate(3deg) scale(1.06); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}
.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.04em;
  position: relative;
  padding: 4px 0;
  transition: color 0.2s;
}
.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 3px;
  background: var(--coral);
  border-radius: 2px;
  transition: width 0.25s ease;
}
.main-nav a:not(.nav-cta):hover::after { width: 100%; }

.nav-cta {
  padding: 8px 22px;
  border-radius: 6px;
  color: #fff !important;
  font-weight: 700;
  background: var(--coral);
  box-shadow: 3px 3px 0 var(--line);
  border: 2px solid var(--line);
  transition: all 0.2s;
}
.nav-cta:hover {
  box-shadow: 1px 1px 0 var(--line);
  transform: translate(2px, 2px);
}
.nav-cta::after { display: none; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.menu-toggle span {
  display: block;
  width: 24px; height: 3px;
  background: var(--ink);
  border-radius: 2px;
  transition: 0.3s;
}
.menu-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  min-height: 75vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  background: var(--paper);
  overflow: hidden;
}
.hero::after {
  content: '漫画';
  position: absolute;
  right: -40px; bottom: -60px;
  font-size: 18rem;
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 2px rgba(43, 43, 38, 0.06);
  pointer-events: none;
  z-index: 0;
  line-height: 1;
}
.hero .container {
  display: flex;
  align-items: center;
  gap: 64px;
  flex-wrap: wrap;
}
.hero-content { flex: 1; min-width: 320px; }

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 800;
  padding: 6px 18px;
  border-radius: 20px;
  margin-bottom: 20px;
  background: var(--mustard);
  color: var(--ink);
  border: 2px solid var(--line);
  transform: rotate(-2deg);
  box-shadow: 3px 3px 0 var(--line);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 22px;
  letter-spacing: -0.03em;
  position: relative;
}
.hero h1 .hl {
  position: relative;
  z-index: 1;
  display: inline-block;
}
.hero h1 .hl::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 0;
  width: 100%; height: 28%;
  background: rgba(255, 197, 58, 0.55);
  z-index: -1;
  border-radius: 4px;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.75;
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.7;
}

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

.hero-image {
  flex: 1;
  min-width: 320px;
  border-radius: 0;
  overflow: hidden;
  border: 3px solid var(--line);
  box-shadow: 6px 6px 0 var(--coral);
  transform: rotate(2deg);
  transition: transform 0.3s, box-shadow 0.3s;
}
.hero-image:hover {
  transform: rotate(0deg) scale(1.01);
  box-shadow: 4px 4px 0 var(--teal);
}
.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid var(--line);
  text-decoration: none;
  transition: all 0.2s ease;
  letter-spacing: 0.03em;
}
.btn-primary {
  background: var(--coral);
  color: #fff;
  box-shadow: 4px 4px 0 var(--line);
}
.btn-primary:hover {
  box-shadow: 1px 1px 0 var(--line);
  transform: translate(3px, 3px);
}
.btn-outline {
  background: transparent;
  color: var(--ink);
  box-shadow: 4px 4px 0 var(--line);
}
.btn-outline:hover {
  box-shadow: 1px 1px 0 var(--line);
  transform: translate(3px, 3px);
}

/* ===== 标签 / 标题 ===== */
.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 3px;
  margin-bottom: 14px;
  text-transform: uppercase;
  color: var(--coral);
  padding: 4px 14px;
  background: rgba(255, 75, 46, 0.08);
  border-radius: 4px;
  border-left: 4px solid var(--coral);
}
.section-title {
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
  line-height: 1.2;
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 0;
  width: 100%; height: 12px;
  background: rgba(255, 197, 58, 0.45);
  z-index: -1;
  border-radius: 6px;
}
.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 48px;
  font-size: 1rem;
  line-height: 1.7;
}

/* ===== 卡片网格 ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 32px;
}
.category-card {
  border-radius: 0;
  padding: 32px;
  border: 2px solid var(--line);
  background: var(--cream);
  box-shadow: 5px 5px 0 var(--ink);
  transition: all 0.25s ease;
  position: relative;
}
.category-card::before {
  content: '';
  position: absolute;
  top: 10px; right: 10px;
  width: 12px; height: 12px;
  background: var(--coral);
  border-radius: 50%;
  border: 2px solid var(--line);
  opacity: 0;
  transition: opacity 0.2s;
}
.category-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 var(--coral);
}
.category-card:hover::before { opacity: 1; }
.card-icon {
  width: 54px; height: 54px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
  background: var(--paper);
  border: 2px solid var(--line);
  box-shadow: 2px 2px 0 var(--line);
}
.card-link {
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--coral);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s;
}
.card-link:hover { gap: 14px; }
.card-link::after { content: '→'; font-size: 1rem; }

/* ===== 特性块 ===== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.feature-image {
  border-radius: 0;
  overflow: hidden;
  border: 3px solid var(--line);
  box-shadow: -6px 6px 0 var(--teal);
  transform: rotate(-1.5deg);
  transition: transform 0.3s;
}
.feature-image:hover { transform: rotate(0deg); }
.feature-image img {
  width: 100%;
  height: auto;
  display: block;
}
.feature-text h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 16px;
}
.feature-text p {
  opacity: 0.75;
  margin-bottom: 24px;
  line-height: 1.7;
}
.feature-list { list-style: none; }
.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  font-size: 0.95rem;
}
.feature-list li::before {
  content: '✓';
  font-weight: 700;
  color: #fff;
  background: var(--teal);
  border: 2px solid var(--line);
  border-radius: 4px;
  width: 22px; height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  box-shadow: 1px 1px 0 var(--line);
  flex-shrink: 0;
}

/* ===== 数据条 ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}
.stat-item {
  padding: 28px 16px;
  border-radius: 0;
  border: 2px solid var(--line);
  background: var(--cream);
  box-shadow: 4px 4px 0 var(--ink);
  transition: all 0.25s;
}
.stat-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--mustard);
}
.stat-number {
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--coral);
  line-height: 1;
  letter-spacing: -0.03em;
}
.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  font-weight: 600;
}

/* ===== 内容墙 ===== */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 32px;
}
.content-wall-item {
  border-radius: 0;
  overflow: hidden;
  border: 2px solid var(--line);
  background: var(--cream);
  box-shadow: 5px 5px 0 var(--ink);
  transition: all 0.25s;
}
.content-wall-item:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 var(--teal);
}
.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 2px solid var(--line);
  transition: transform 0.4s;
}
.content-wall-item:hover img { transform: scale(1.03); }
.content-wall-body { padding: 20px; }
.content-wall-body h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.content-wall-body p {
  font-size: 0.9rem;
  opacity: 0.65;
  line-height: 1.5;
}

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 2px solid var(--line);
  border-radius: 0;
  margin-bottom: 14px;
  overflow: hidden;
  cursor: pointer;
  background: var(--cream);
  box-shadow: 3px 3px 0 var(--ink);
  transition: all 0.2s;
}
.faq-item:hover { box-shadow: 5px 5px 0 var(--coral); }
.faq-item.open { box-shadow: 5px 5px 0 var(--teal); }
.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
}
.faq-item .faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--coral);
  transition: transform 0.3s;
}
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.7;
  line-height: 1.7;
  font-size: 0.95rem;
}
.faq-item.open .faq-answer { display: block; }

/* ===== CTA横幅 ===== */
.cta-banner {
  padding: 64px 48px;
  text-align: center;
  border-radius: 0;
  background: var(--coral);
  border: 3px solid var(--line);
  box-shadow: 8px 8px 0 var(--ink);
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-image: radial-gradient(rgba(255,255,255,0.18) 1.5px, transparent 1.5px);
  background-size: 16px 16px;
  pointer-events: none;
}
.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  position: relative;
}
.cta-banner p {
  color: rgba(255,255,255,0.9);
  margin-bottom: 28px;
  position: relative;
  max-width: 460px;
  margin-left: auto;
  margin-right: auto;
  font-size: 1rem;
}
.cta-banner .btn-primary {
  background: #fff;
  color: var(--coral);
  border-color: var(--line);
  box-shadow: 4px 4px 0 var(--line);
  position: relative;
}
.cta-banner .btn-primary:hover {
  box-shadow: 1px 1px 0 var(--line);
  transform: translate(3px, 3px);
}

/* ===== 页脚 ===== */
.site-footer {
  padding: 64px 0 28px;
  background: var(--paper);
  border-top: 2px solid var(--line);
  position: relative;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: -2px; left: 0;
  width: 100%; height: 4px;
  background: repeating-linear-gradient(90deg,
    var(--coral) 0 40px,
    var(--mustard) 40px 80px,
    var(--teal) 80px 120px
  );
}
.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 p {
  opacity: 0.7;
  font-size: 0.9rem;
  margin-top: 12px;
  max-width: 280px;
  line-height: 1.6;
}
.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 800;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--ink);
  opacity: 0.7;
  transition: opacity 0.2s, padding-left 0.2s;
}
.footer-col ul li a:hover {
  opacity: 1;
  padding-left: 4px;
  color: var(--coral);
}
.footer-bottom {
  border-top: 2px solid rgba(43, 43, 38, 0.1);
  margin-top: 48px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.6;
}

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

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .hero h1 { font-size: 2.6rem; }
  .section-title { font-size: 2rem; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .feature-block { gap: 40px; }
  .hero .container { gap: 40px; }
}

@media (max-width: 768px) {
  .feature-block { grid-template-columns: 1fr; gap: 44px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }

  .main-nav {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: var(--paper);
    border-bottom: 2px solid var(--line);
    padding: 24px;
    box-shadow: 0 12px 24px rgba(0,0,0,0.08);
  }
  .main-nav.open { display: flex; }
  .menu-toggle { display: flex; }

  .hero {
    min-height: auto;
    padding-top: 110px;
    padding-bottom: 64px;
  }
  .hero .container { flex-direction: column; }
  .hero h1 { font-size: 2.1rem; }
  .hero::after { display: none; }
  .hero-buttons { flex-wrap: wrap; }
  .hero-image { min-width: 280px; }

  .section { padding: 72px 0; }
  .section-title { font-size: 1.75rem; }
  .cta-banner { padding: 48px 28px; }
  .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; align-items: stretch; }
  .hero-buttons .btn { justify-content: center; width: 100%; }
  .section { padding: 56px 0; }
  .section-title { font-size: 1.5rem; }
  .hero h1 { font-size: 1.7rem; line-height: 1.25; }
  .hero p { font-size: 0.95rem; }
  .hero-eyebrow { font-size: 0.72rem; padding: 4px 14px; }
  .cta-banner { padding: 40px 20px; box-shadow: 5px 5px 0 var(--ink); }
  .cta-banner h2 { font-size: 1.4rem; }
  .btn { padding: 12px 24px; font-size: 0.88rem; }
  .stat-number { font-size: 2rem; }
  .logo { font-size: 1.1rem; }
  .logo-icon { width: 30px; height: 30px; font-size: 0.85rem; box-shadow: 2px 2px 0 var(--line); }
  .header-inner { height: 60px; }
  .main-nav { top: 60px; }
  .content-wall-item img { height: 160px; }
}