/* =========================================================
   OK动漫网 · 一眼入魂
   漫画纸风格设计系统 — 米白底 + 墨线 + 品红 + 明黄 + 青
   ========================================================= */

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

:root {
  --paper: #FAF5EE;
  --paper-deep: #FFF3E6;
  --card: #FFFFFF;
  --ink: #2B1A1E;
  --magenta: #FF3E6C;
  --yellow: #FFD93D;
  --cyan: #00C9B7;
  --pink-soft: #FFE0E7;
  --shadow: 6px 6px 0 var(--ink);
  --shadow-sm: 3px 3px 0 var(--ink);
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background-color: var(--paper);
  color: var(--ink);
  background-image:
    radial-gradient(rgba(43,26,30,0.035) 1.5px, transparent 1.5px),
    radial-gradient(rgba(255,62,108,0.028) 1.5px, transparent 1.5px);
  background-size: 24px 24px, 24px 24px;
  background-position: 0 0, 12px 12px;
  line-height: 1.7;
}

/* 巨型OK水印 */
body::after {
  content: 'OK!';
  position: fixed;
  bottom: -16px;
  right: -10px;
  font-size: 260px;
  font-weight: 900;
  line-height: 1;
  color: rgba(255,62,108,0.045);
  transform: rotate(-12deg);
  pointer-events: none;
  z-index: 0;
}

.container { max-width:1200px; margin:0 auto; padding:0 24px; position:relative; z-index:1; }
.section { padding:80px 0; background:var(--paper); position:relative; }
.section:nth-child(even) { background:var(--paper-deep); }

/* ============ 导航 ============ */
.site-header {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250,245,238,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 3px solid var(--ink);
  box-shadow: 0 3px 0 var(--yellow);
}

.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: 1.3rem;
  text-decoration: none;
  color: var(--ink);
  position: relative;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  background: var(--yellow);
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
  animation: bob 6s ease-in-out infinite;
}

.main-nav { display: flex; align-items: center; gap: 6px; list-style: none; }
.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--ink);
  padding: 9px 16px;
  border-radius: 999px;
  transition: 0.2s;
  position: relative;
}
.main-nav a::before {
  content: '';
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--magenta);
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
  opacity: 0;
  transition: 0.2s;
}
.main-nav a:hover::before { opacity: 1; }
.main-nav a:hover { background: var(--pink-soft); }

.nav-cta {
  padding: 10px 24px !important;
  border-radius: 999px;
  background: var(--magenta);
  border: 2.5px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
}
.nav-cta:hover {
  background: #FF5E7E;
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--ink);
}
.nav-cta:hover::before { display: none; }

.menu-toggle {
  display: none;
  width: 44px; height: 44px;
  background: var(--yellow);
  border: 2.5px solid var(--ink);
  border-radius: 12px;
  box-shadow: 2px 2px 0 var(--ink);
  font-size: 1.4rem;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--ink);
}

/* ============ Hero ============ */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding-top: 88px;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  top: 12%;
  right: 6%;
  width: 240px; height: 240px;
  background: var(--cyan);
  border: 3px solid var(--ink);
  border-radius: 50%;
  opacity: 0.12;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 6px;
  background: repeating-linear-gradient(90deg, var(--magenta) 0 32px, transparent 32px 64px);
  opacity: 0.15;
  pointer-events: none;
}

.hero-content { max-width: 720px; position: relative; z-index: 1; }

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 800;
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 18px;
  background: var(--yellow);
  color: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
  transform: rotate(-2deg);
  animation: float 6s ease-in-out infinite;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -1px;
  text-shadow: 4px 4px 0 var(--yellow);
}

.hero p {
  font-size: 1.08rem;
  opacity: 0.75;
  max-width: 560px;
  margin-bottom: 28px;
  font-weight: 500;
}

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

.hero-image {
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  border: 3px solid var(--ink);
  box-shadow: 8px 8px 0 var(--yellow);
  margin-top: 32px;
}
.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}
.hero-image::after {
  content: '一眼入魂';
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--magenta);
  color: #fff;
  border: 2px solid var(--ink);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 800;
  box-shadow: 2px 2px 0 var(--ink);
  transform: rotate(6deg);
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2.5px solid var(--ink);
  text-decoration: none;
  transition: 0.2s;
  background: #fff;
  color: var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
  position: relative;
}
.btn:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}
.btn-primary {
  background: var(--magenta);
  color: #fff;
}
.btn-primary:hover { background: #FF5577; }
.btn-outline {
  background: transparent;
}
.btn-outline:hover { background: var(--cyan); color: #fff; }

/* ============ 标题区 ============ */
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 3px;
  margin-bottom: 14px;
  background: var(--cyan);
  color: #fff;
  padding: 5px 16px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  box-shadow: 2px 2px 0 var(--ink);
  transform: rotate(-1deg);
}

.section-title {
  display: inline-block;
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 16px;
  padding: 0 8px;
  background: linear-gradient(180deg, transparent 62%, rgba(255,217,61,0.92) 62%);
  border-radius: 4px;
  line-height: 1.3;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 44px;
  font-size: 1.02rem;
}

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

.category-card {
  border-radius: 16px;
  padding: 30px 26px;
  border: 3px solid var(--ink);
  background: var(--card);
  box-shadow: 6px 6px 0 var(--ink);
  transition: 0.2s;
  position: relative;
}
.category-card::before {
  content: '';
  position: absolute;
  top: -8px;
  right: -8px;
  width: 26px;
  height: 26px;
  border: 2px solid var(--ink);
  background: var(--yellow);
  border-radius: 50%;
  box-shadow: 2px 2px 0 rgba(43,26,30,0.6);
}
.category-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--magenta);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: var(--pink-soft);
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 rgba(43,26,30,0.5);
}

.card-link {
  font-weight: 800;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.card-link::after {
  content: '→';
  transition: 0.2s;
}
.card-link:hover {
  text-decoration: underline;
  text-decoration-color: var(--magenta);
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
}

/* ============ 特性块 ============ */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-image {
  border-radius: 16px;
  overflow: hidden;
  border: 3px solid var(--ink);
  box-shadow: 8px 8px 0 var(--cyan);
  position: relative;
}
.feature-image img {
  width: 100%;
  height: auto;
  display: block;
}
.feature-image::after {
  content: '✦';
  position: absolute;
  bottom: 10px;
  right: 14px;
  font-size: 36px;
  color: var(--yellow);
  text-shadow: 2px 2px 0 var(--ink);
  line-height: 1;
}

.feature-text h3 {
  font-size: 1.8rem;
  font-weight: 900;
  margin-bottom: 18px;
  line-height: 1.3;
}

.feature-list { list-style: none; margin-top: 20px; }
.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
}
.feature-list li::before {
  content: '✓';
  width: 22px;
  height: 22px;
  background: var(--cyan);
  color: #fff;
  border-radius: 50%;
  border: 2px solid var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
  font-weight: 900;
}

/* ============ 数据条 ============ */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}

.stat-item {
  padding: 30px 20px;
  border-radius: 16px;
  border: 3px solid var(--ink);
  background: #fff;
  box-shadow: 5px 5px 0 var(--ink);
  transform: rotate(-0.5deg);
  transition: 0.2s;
}
.stat-item:nth-child(2n) { transform: rotate(0.5deg); }
.stat-item:hover {
  transform: rotate(0deg) translate(1px, 1px);
  box-shadow: 4px 4px 0 var(--yellow);
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--magenta);
  line-height: 1.2;
}
.stat-label {
  font-size: 0.9rem;
  opacity: 0.55;
  margin-top: 6px;
  font-weight: 600;
  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: 16px;
  overflow: hidden;
  border: 3px solid var(--ink);
  background: #fff;
  box-shadow: 6px 6px 0 var(--ink);
  transition: 0.2s;
  position: relative;
}
.content-wall-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--yellow);
}
.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 3px solid var(--ink);
}
.content-wall-body { padding: 22px; }
.content-wall-body h4 {
  font-size: 1.15rem;
  font-weight: 900;
  margin-bottom: 8px;
}
.content-wall-body p {
  font-size: 0.9rem;
  opacity: 0.65;
  line-height: 1.7;
}

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

.faq-item {
  border: 3px solid var(--ink);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  box-shadow: 4px 4px 0 var(--ink);
  transition: 0.2s;
}
.faq-item.open { background: var(--pink-soft); }

.faq-item .faq-question {
  padding: 16px 22px;
  font-weight: 900;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  gap: 16px;
}
.faq-item .faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--magenta);
  font-weight: 900;
  transition: 0.2s;
  flex-shrink: 0;
}
.faq-item.open .faq-question::after {
  content: '−';
  color: var(--cyan);
}

.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.78;
  font-size: 0.95rem;
  line-height: 1.8;
}
.faq-item.open .faq-answer { display: block; }

/* ============ CTA横幅 ============ */
.cta-banner {
  padding: 60px 24px;
  text-align: center;
  border-radius: 24px;
  color: #fff;
  background: var(--magenta);
  border: 3px solid var(--ink);
  box-shadow: 8px 8px 0 var(--yellow);
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: 'OK!';
  position: absolute;
  left: -8px;
  bottom: -28px;
  font-size: 130px;
  font-weight: 900;
  color: rgba(255,255,255,0.14);
  line-height: 1;
  transform: rotate(-10deg);
  pointer-events: none;
}
.cta-banner::after {
  content: '✦ ✦ ✦';
  position: absolute;
  top: 16px;
  right: 24px;
  font-size: 22px;
  color: var(--yellow);
  letter-spacing: 8px;
  pointer-events: none;
}
.cta-banner h2 {
  color: #fff;
  font-size: 2rem;
  font-weight: 900;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}
.cta-banner p {
  color: rgba(255,255,255,0.9);
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}
.cta-banner .btn-primary {
  background: #fff;
  color: var(--ink);
}
.cta-banner .btn-primary:hover {
  background: var(--yellow);
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

/* ============ 页脚 ============ */
.site-footer {
  padding: 56px 0 28px;
  background: var(--paper-deep);
  border-top: 3px solid var(--ink);
  box-shadow: 0 -4px 0 var(--yellow);
  position: relative;
}

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

.footer-brand .logo { font-size: 1.4rem; }
.footer-brand p {
  opacity: 0.6;
  margin-top: 14px;
  font-size: 0.92rem;
  max-width: 280px;
}

.footer-col h5 {
  font-size: 1rem;
  font-weight: 900;
  margin-bottom: 14px;
  position: relative;
  display: inline-block;
}
.footer-col h5::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 4px;
  background: var(--magenta);
  border-radius: 2px;
}
.footer-col a {
  display: block;
  text-decoration: none;
  color: var(--ink);
  opacity: 0.7;
  padding: 4px 0;
  font-size: 0.92rem;
  transition: 0.2s;
}
.footer-col a:hover {
  opacity: 1;
  color: var(--magenta);
  padding-left: 6px;
}

.footer-bottom {
  border-top: 2px dashed rgba(43,26,30,0.25);
  margin-top: 44px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.6;
}

/* ============ 工具类 ============ */
.text-accent { color: var(--magenta); font-weight: 900; }
.text-center { text-align: center; }
.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  line-height: 1.9;
  text-align: center;
}
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ============ 动画 ============ */
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-8px) rotate(-2deg); }
}
@keyframes bob {
  0%, 100% { transform: rotate(-2deg); }
  50% { transform: rotate(2deg); }
}

/* ============ 响应式 ============ */
@media (max-width: 768px) {
  .hero h1 { font-size: 2.5rem; }
  .hero { padding-top: 76px; }
  .feature-block { grid-template-columns: 1fr; gap: 40px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .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: 20px;
    border-bottom: 3px solid var(--ink);
    box-shadow: 0 4px 0 rgba(43,26,30,0.1);
    gap: 8px;
  }
  .main-nav.open a {
    padding: 12px 16px;
    width: 100%;
    border-radius: 12px;
  }
}

@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; }
  .hero h1 { font-size: 2rem; }
  .section { padding: 48px 0; }
  .section-title { font-size: 1.7rem; }
  .cta-banner { padding: 40px 20px; }
  .stat-number { font-size: 2rem; }
}