/* ==============================================
   EHVIEWER COMIC BRUTALIST DESIGN SYSTEM
   漫画万千 · 唯此正门
   ============================================== */
:root {
  --paper: #FDF8F0;
  --paper-dark: #F0EBE2;
  --ink: #2B2B2B;
  --primary: #FF5470;
  --secondary: #00C2A8;
  --yellow: #FFB800;
  --purple: #7B61FF;
  --white: #FFFFFF;
  --border-w: 3px;
  --shadow: 5px 5px 0 var(--ink);
  --shadow-sm: 3px 3px 0 var(--ink);
}

/* 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-color: var(--paper);
  background-image: radial-gradient(rgba(43, 43, 43, 0.07) 1.5px, transparent 1.5px);
  background-size: 28px 28px;
  color: var(--ink);
  line-height: 1.6;
}

/* 核心布局 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 90px 0;
  position: relative;
}
.section:nth-child(even) {
  background: var(--paper-dark);
}

/* 导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(253, 248, 240, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: var(--border-w) solid var(--ink);
}
.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: 900;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: var(--primary);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  color: #fff;
  font-weight: 900;
  transform: rotate(-4deg);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}
.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink);
  padding: 6px 0;
  border-bottom: 3px solid transparent;
  transition: 0.15s;
  position: relative;
}
.main-nav a:hover {
  border-bottom-color: var(--primary);
  color: var(--primary);
}
.nav-cta {
  padding: 9px 22px;
  border-radius: 0;
  background: var(--secondary) !important;
  border: 2px solid var(--ink) !important;
  box-shadow: var(--shadow-sm) !important;
  color: #fff !important;
  font-weight: 800;
  border-bottom: 2px solid var(--ink) !important;
  transition: 0.15s;
}
.nav-cta:hover {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--ink) !important;
  border-bottom-color: var(--ink) !important;
  color: #fff !important;
}
.menu-toggle {
  display: none;
  background: #fff;
  border: 2px solid var(--ink);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 6px 12px;
  border-radius: 0;
  box-shadow: var(--shadow-sm);
  color: var(--ink);
}

/* Hero */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  gap: 60px;
  position: relative;
  padding: 140px 0 80px;
}
.hero::before {
  content: '✦';
  position: absolute;
  top: 12%;
  right: 6%;
  font-size: 140px;
  color: var(--yellow);
  opacity: 0.25;
  z-index: 0;
  transform: rotate(15deg);
  animation: float 4s ease-in-out infinite;
}
.hero::after {
  content: '●';
  position: absolute;
  bottom: 18%;
  right: 20%;
  font-size: 48px;
  color: var(--primary);
  opacity: 0.2;
  z-index: 0;
}
.hero-content {
  flex: 1 1 520px;
  max-width: 720px;
  position: relative;
  z-index: 2;
}
.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 6px 16px;
  border-radius: 0;
  background: var(--yellow);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.hero h1 {
  font-size: 3.6rem;
  font-weight: 900;
  line-height: 1.12;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
  text-shadow: 2px 2px 0 rgba(255, 84, 112, 0.25);
  position: relative;
}
.hero h1::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 0;
  width: 100%;
  height: 14px;
  background: rgba(255, 184, 0, 0.4);
  z-index: -1;
}
.hero p {
  font-size: 1.1rem;
  opacity: 0.75;
  max-width: 560px;
  margin-bottom: 34px;
  font-weight: 500;
}
.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-image {
  flex: 1 1 380px;
  border-radius: 0;
  overflow: visible;
  position: relative;
  z-index: 1;
}
.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  border: var(--border-w) solid var(--ink);
  box-shadow: 10px 10px 0 var(--yellow);
  transition: transform 0.3s, box-shadow 0.3s;
}
.hero-image img:hover {
  transform: translate(-2px, -2px);
  box-shadow: 14px 14px 0 var(--secondary);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 0;
  font-weight: 800;
  font-size: 0.9rem;
  cursor: pointer;
  border: var(--border-w) solid var(--ink);
  text-decoration: none;
  transition: 0.15s;
  letter-spacing: 0.5px;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow);
}
.btn-primary:hover {
  transform: translate(3px, 3px);
  box-shadow: 2px 2px 0 var(--ink);
}
.btn-outline {
  background: transparent;
  border: var(--border-w) solid var(--ink);
  color: var(--ink);
  box-shadow: var(--shadow);
  background: #fff;
}
.btn-outline:hover {
  transform: translate(3px, 3px);
  box-shadow: 2px 2px 0 var(--ink);
}

/* 标签/标题 */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 3px;
  margin-bottom: 14px;
  background: var(--secondary);
  color: #fff;
  padding: 5px 14px;
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
  text-transform: uppercase;
}
.section-title {
  font-size: 2.4rem;
  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: 10px;
  background: var(--yellow);
  opacity: 0.35;
  z-index: -1;
}
.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 44px;
  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: 30px;
}
.category-card {
  border-radius: 0;
  padding: 32px 28px;
  border: var(--border-w) solid var(--ink);
  background: #fff;
  box-shadow: var(--shadow);
  transition: 0.15s;
  position: relative;
  overflow: hidden;
}
.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 54px;
  height: 54px;
  background: var(--yellow);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  opacity: 0.4;
}
.category-card:nth-child(2)::before { background: var(--primary); }
.category-card:nth-child(3)::before { background: var(--secondary); }
.category-card:nth-child(4)::before { background: var(--purple); }
.category-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 var(--ink);
}
.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: 2px 2px 0 var(--ink);
}
.card-link {
  font-weight: 800;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
  display: inline-block;
  margin-top: 14px;
  transition: 0.15s;
}
.card-link:hover {
  background: var(--yellow);
  color: var(--ink);
  border-bottom-color: var(--ink);
  padding: 2px 6px;
  margin-left: -6px;
}

/* 特性块 */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.feature-image {
  border-radius: 0;
  overflow: visible;
  position: relative;
}
.feature-image img {
  width: 100%;
  height: auto;
  display: block;
  border: var(--border-w) solid var(--ink);
  box-shadow: 8px 8px 0 var(--purple);
}
.feature-text {
  position: relative;
}
.feature-text::before {
  content: '｢';
  position: absolute;
  top: -40px;
  left: -16px;
  font-size: 80px;
  color: var(--secondary);
  font-weight: 900;
  opacity: 0.2;
}
.feature-list {
  list-style: none;
  margin-top: 20px;
}
.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 0.95rem;
}
.feature-list li::before {
  content: '✓';
  font-weight: 800;
  background: var(--secondary);
  color: #fff;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--ink);
  box-shadow: 1px 1px 0 var(--ink);
  font-size: 0.85rem;
}

/* 数据条 */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-item {
  padding: 30px 20px;
  border-radius: 0;
  border: var(--border-w) solid var(--ink);
  background: #fff;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  transition: 0.15s;
}
.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 7px 7px 0 var(--ink);
}
.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 8px;
}
.stat-item:nth-child(1)::before { background: var(--primary); }
.stat-item:nth-child(2)::before { background: var(--secondary); }
.stat-item:nth-child(3)::before { background: var(--purple); }
.stat-item:nth-child(4)::before { background: var(--yellow); }
.stat-number {
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
  display: block;
}
.stat-item:nth-child(1) .stat-number { color: var(--primary); }
.stat-item:nth-child(2) .stat-number { color: var(--secondary); }
.stat-item:nth-child(3) .stat-number { color: var(--purple); }
.stat-item:nth-child(4) .stat-number { color: var(--yellow); }
.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 10px;
  font-weight: 600;
  display: block;
}

/* 内容墙 */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}
.content-wall-item {
  border-radius: 0;
  overflow: hidden;
  border: var(--border-w) solid var(--ink);
  background: #fff;
  box-shadow: var(--shadow);
  transition: 0.15s;
}
.content-wall-item:nth-child(2) {
  transform: rotate(0.8deg);
}
.content-wall-item:nth-child(3) {
  transform: rotate(-0.5deg);
}
.content-wall-item:nth-child(4) {
  transform: rotate(0.4deg);
}
.content-wall-item:hover {
  transform: translate(-3px, -3px) rotate(0deg) !important;
  box-shadow: 8px 8px 0 var(--ink);
}
.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: var(--border-w) solid var(--ink);
  display: block;
}
.content-wall-body {
  padding: 22px;
}
.content-wall-body h3 {
  font-size: 1.1rem;
  font-weight: 800;
  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: var(--border-w) solid var(--ink);
  border-radius: 0;
  margin-bottom: 16px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  box-shadow: 4px 4px 0 var(--ink);
  transition: 0.15s;
}
.faq-item:hover {
  transform: translate(1px, 1px);
  box-shadow: 5px 5px 0 var(--ink);
}
.faq-item.open {
  box-shadow: 2px 2px 0 var(--ink);
}
.faq-item .faq-question {
  padding: 20px 22px;
  font-weight: 800;
  font-size: 0.95rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-item .faq-question::after {
  content: '+';
  font-size: 1.6rem;
  font-weight: 900;
  transition: 0.2s;
  color: var(--primary);
  line-height: 1;
}
.faq-item.open .faq-question::after {
  transform: rotate(45deg);
  color: var(--secondary);
}
.faq-item .faq-answer {
  padding: 0 22px 20px;
  display: none;
  opacity: 0.7;
  line-height: 1.7;
  font-size: 0.92rem;
  border-top: 2px dashed rgba(43, 43, 43, 0.15);
  padding-top: 12px;
}
.faq-item.open .faq-answer {
  display: block;
  animation: fadeIn 0.3s ease;
}

/* CTA横幅 */
.cta-banner {
  padding: 60px 24px;
  text-align: center;
  border-radius: 0;
  color: #fff;
  background: var(--purple);
  border: var(--border-w) solid var(--ink);
  box-shadow: 8px 8px 0 var(--ink);
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '★';
  position: absolute;
  top: 20px;
  left: 30px;
  font-size: 60px;
  color: rgba(255, 255, 255, 0.25);
  transform: rotate(-15deg);
}
.cta-banner::after {
  content: '★';
  position: absolute;
  bottom: 20px;
  right: 30px;
  font-size: 40px;
  color: rgba(255, 255, 255, 0.2);
  transform: rotate(20deg);
}
.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.cta-banner .btn-primary {
  background: #fff;
  color: var(--purple);
  box-shadow: 4px 4px 0 var(--ink);
  position: relative;
  z-index: 1;
}
.cta-banner .btn-primary:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

/* 页脚 */
.site-footer {
  padding: 64px 0 28px;
  background: var(--paper-dark);
  border-top: var(--border-w) solid var(--ink);
  color: var(--ink);
  position: relative;
}
.site-footer .container {
  position: relative;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 44px;
}
.footer-brand .logo {
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.65;
  max-width: 280px;
  line-height: 1.6;
}
.footer-col {
  display: flex;
  flex-direction: column;
}
.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 800;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border-bottom: 2px solid var(--ink);
  display: inline-block;
  padding-bottom: 4px;
  width: fit-content;
}
.footer-col a {
  color: var(--ink);
  text-decoration: none;
  display: block;
  padding: 5px 0;
  font-weight: 500;
  font-size: 0.9rem;
  transition: 0.15s;
  opacity: 0.75;
}
.footer-col a:hover {
  opacity: 1;
  color: var(--primary);
  transform: translateX(4px);
}
.footer-bottom {
  border-top: 2px solid rgba(43, 43, 43, 0.15);
  margin-top: 48px;
  padding-top: 22px;
  text-align: center;
  font-size: 0.82rem;
  opacity: 0.55;
  font-weight: 500;
}

/* 工具类 */
.text-accent {
  color: var(--primary);
}
.text-center {
  text-align: center;
}
.seo-description {
  max-width: 600px;
  margin: 0 auto 52px;
  opacity: 0.7;
  line-height: 1.8;
  text-align: center;
}
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* 动画 */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes float {
  0%, 100% { transform: rotate(15deg) translateY(0); }
  50% { transform: rotate(15deg) translateY(-14px); }
}

/* 分隔装饰 */
.section:nth-child(odd)::before {
  content: '✿ ✿ ✿';
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.4rem;
  color: var(--primary);
  opacity: 0.2;
  z-index: 10;
  letter-spacing: 10px;
}

/* 小屏适配 */
@media (max-width: 768px) {
  .hero {
    flex-direction: column;
    padding: 120px 0 60px;
    gap: 40px;
  }
  .hero-content {
    max-width: 100%;
  }
  .hero-image {
    width: 100%;
    max-width: 540px;
  }
  .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: 72px;
    left: 0;
    width: 100%;
    background: var(--paper);
    padding: 24px;
    border-bottom: var(--border-w) solid var(--ink);
    gap: 18px;
    box-shadow: 0 10px 0 rgba(43, 43, 43, 0.1);
  }
  .main-nav.open a {
    font-size: 1rem;
  }
  .main-nav.open .nav-cta {
    display: inline-block;
    text-align: center;
  }
  .hero h1 {
    font-size: 2.4rem;
  }
  .section {
    padding: 64px 0;
  }
}

@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;
    width: 100%;
  }
  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }
  .section-title {
    font-size: 1.8rem;
  }
  .cta-banner {
    padding: 40px 20px;
  }
  .cta-banner h2 {
    font-size: 1.5rem;
  }
  .stat-number {
    font-size: 2rem;
  }
}