/* ============================================
   禁漫天堂 · 发布页设计系统
   风格：暖流有机主义 / 珊瑚朱 × 墨绿 × 琥珀
   ============================================ */

/* 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; }

:root {
  --c-bg: #FBF7F0;
  --c-bg-alt: #F4EFE6;
  --c-surface: #FFFDFA;
  --c-primary: #E2594F;
  --c-primary-deep: #C44A42;
  --c-secondary: #2F6B5A;
  --c-accent: #E8A33D;
  --c-text: #2D2320;
  --c-text-muted: rgba(45, 35, 32, 0.7);
  --c-border: rgba(45, 35, 32, 0.08);
  --radius-organic: 24px 8px 24px 8px;
  --radius-organic-sm: 16px 4px 16px 4px;
  --radius-pill: 48px 16px 48px 16px;
  --shadow-soft: 0 4px 24px rgba(45, 35, 32, 0.06);
  --shadow-float: 0 20px 60px rgba(226, 89, 79, 0.14);
  --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  background-color: var(--c-bg);
  color: var(--c-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(rgba(226, 89, 79, 0.025) 1px, transparent 1px),
    radial-gradient(circle at 15% 30%, rgba(232, 163, 61, 0.06) 0%, transparent 40%),
    radial-gradient(circle at 85% 70%, rgba(47, 107, 90, 0.04) 0%, transparent 45%);
  background-size: 24px 24px, 100% 100%, 100% 100%;
  background-attachment: fixed;
}

::selection {
  background: rgba(226, 89, 79, 0.18);
  color: var(--c-text);
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--c-bg); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--c-primary), var(--c-accent));
  border-radius: 4px;
}

/* 核心布局 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section:nth-child(even) {
  background: var(--c-bg-alt);
  background-image:
    radial-gradient(circle at 20% 50%, rgba(47, 107, 90, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(226, 89, 79, 0.04) 0%, transparent 35%);
}

/* ============================================
   导航
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(251, 247, 240, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--c-border);
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent), transparent);
  opacity: 0.6;
  pointer-events: none;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  font-size: 1.35rem;
  text-decoration: none;
  color: var(--c-text);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 50% 50% 50% 12%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #fff;
  box-shadow: 0 4px 14px rgba(226, 89, 79, 0.3);
}

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

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

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--c-primary);
  border-radius: 2px;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.main-nav a:not(.nav-cta):hover {
  color: var(--c-primary);
}

.main-nav a:not(.nav-cta):hover::after {
  width: 100%;
}

.nav-cta {
  padding: 10px 24px;
  border-radius: var(--radius-organic-sm);
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(226, 89, 79, 0.28);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(226, 89, 79, 0.38);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--c-border);
  background: var(--c-surface);
  color: var(--c-text);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  transition: background 0.25s ease;
}

.menu-toggle:hover {
  background: rgba(226, 89, 79, 0.06);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 140px 0 80px;
}

.hero::before {
  content: '';
  position: absolute;
  right: -8%;
  top: -12%;
  width: 58%;
  height: 120%;
  background: linear-gradient(145deg, rgba(226, 89, 79, 0.07), rgba(232, 163, 61, 0.1) 60%, transparent 85%);
  border-radius: 62% 38% 30% 70% / 55% 65% 35% 45%;
  z-index: 0;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  left: -4%;
  bottom: -18%;
  width: 32%;
  height: 50%;
  background: radial-gradient(ellipse, rgba(47, 107, 90, 0.08), transparent 70%);
  border-radius: 50%;
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  max-width: 640px;
  position: relative;
  z-index: 1;
  flex: 1.2;
  padding-right: 20px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 20px;
  border-radius: var(--radius-organic-sm);
  background: rgba(47, 107, 90, 0.1);
  color: var(--c-secondary);
  margin-bottom: 22px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-eyebrow::before {
  content: '✦';
  font-size: 0.8rem;
  color: var(--c-accent);
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.12;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero p {
  font-size: 1.15rem;
  color: var(--c-text-muted);
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.8;
}

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

.hero-image {
  flex: 1;
  max-width: 480px;
  border-radius: var(--radius-organic);
  overflow: hidden;
  box-shadow: var(--shadow-float);
  position: relative;
  z-index: 1;
  background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
  padding: 6px;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px 4px 20px 4px;
}

/* ============================================
   按钮
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all var(--transition-base);
}

.btn-primary {
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  color: #fff;
  box-shadow: 0 6px 20px rgba(226, 89, 79, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(226, 89, 79, 0.42);
}

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

.btn-outline:hover {
  background: rgba(47, 107, 90, 0.06);
  transform: translateY(-3px);
}

/* ============================================
   小标 / 标题
   ============================================ */
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  margin-bottom: 14px;
  text-transform: uppercase;
  color: var(--c-primary);
  position: relative;
  padding-left: 30px;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 22px;
  height: 2px;
  background: var(--c-accent);
  border-radius: 2px;
  transform: translateY(-50%);
}

.section-title {
  font-size: 2.4rem;
  font-weight: 900;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-desc {
  max-width: 620px;
  color: var(--c-text-muted);
  margin-bottom: 48px;
  line-height: 1.8;
}

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

.category-card {
  background: var(--c-surface);
  border-radius: var(--radius-organic);
  padding: 32px 28px;
  border: 1px solid var(--c-border);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.category-card:hover {
  transform: translateY(-8px) rotate(-0.6deg);
  box-shadow: var(--shadow-float);
  border-color: transparent;
}

.category-card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-organic-sm);
  background: linear-gradient(135deg, rgba(226, 89, 79, 0.1), rgba(232, 163, 61, 0.12));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
}

.card-link {
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--c-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s ease;
}

.card-link:hover {
  gap: 12px;
}

.card-link::after {
  content: '→';
  transition: transform 0.3s ease;
}

.card-link:hover::after {
  transform: translateX(4px);
}

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

.feature-image {
  border-radius: var(--radius-organic);
  overflow: visible;
  box-shadow: var(--shadow-soft);
  position: relative;
}

.feature-image::after {
  content: '';
  position: absolute;
  top: 16px;
  left: 16px;
  width: 100%;
  height: 100%;
  border: 2px solid var(--c-accent);
  border-radius: var(--radius-organic);
  z-index: -1;
  opacity: 0.5;
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-organic);
}

.feature-text {
  padding: 12px 0;
}

.feature-list {
  list-style: none;
  margin-top: 20px;
}

.feature-list li {
  padding: 12px 0;
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 1rem;
  border-bottom: 1px dashed rgba(45, 35, 32, 0.08);
}

.feature-list li::before {
  content: '→';
  width: 30px;
  height: 30px;
  background: rgba(47, 107, 90, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--c-secondary);
  flex-shrink: 0;
  transition: background 0.3s ease;
}

.feature-list li:hover::before {
  background: rgba(47, 107, 90, 0.2);
}

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

.stat-item {
  background: var(--c-surface);
  padding: 36px 20px;
  border-radius: var(--radius-organic);
  border: 1px solid var(--c-border);
  position: relative;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.stat-item::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 64px;
  height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  border-radius: 0 0 4px 4px;
}

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

.stat-number {
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--c-primary);
  line-height: 1;
}

.stat-number::after {
  content: '+';
  font-size: 1.5rem;
  vertical-align: top;
  margin-left: 2px;
  color: var(--c-accent);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--c-text-muted);
  margin-top: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* ============================================
   内容墙
   ============================================ */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.content-wall-item {
  background: var(--c-surface);
  border-radius: var(--radius-organic);
  overflow: hidden;
  border: 1px solid var(--c-border);
  transition: all var(--transition-base);
}

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

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

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

.content-wall-body {
  padding: 24px 24px 22px;
}

.content-wall-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.content-wall-body p {
  color: var(--c-text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

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

.faq-item {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-organic-sm);
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(226, 89, 79, 0.25);
}

.faq-item.open {
  border-color: rgba(226, 89, 79, 0.25);
  box-shadow: var(--shadow-soft);
}

.faq-item .faq-question {
  padding: 18px 24px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.05rem;
  transition: color 0.3s ease;
}

.faq-item.open .faq-question {
  color: var(--c-primary);
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--c-primary);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
}

.faq-item .faq-answer {
  padding: 0 24px 20px;
  display: none;
  color: var(--c-text-muted);
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  display: block;
  animation: faqOpen 0.35s ease;
}

@keyframes faqOpen {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   CTA
   ============================================ */
.cta-banner {
  padding: 64px 40px;
  text-align: center;
  border-radius: var(--radius-organic);
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-float);
}

.cta-banner::before {
  content: '';
  position: absolute;
  right: -40px;
  top: -40px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
}

.cta-banner::after {
  content: '';
  position: absolute;
  left: -20px;
  bottom: -50px;
  width: 140px;
  height: 140px;
  border-radius: 42% 58% 60% 40% / 50% 40% 60% 50%;
  background: rgba(255, 255, 255, 0.08);
}

.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.92);
  max-width: 560px;
  margin: 0 auto 32px;
  position: relative;
  z-index: 1;
  font-size: 1.05rem;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--c-primary);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
}

/* ============================================
   页脚
   ============================================ */
.site-footer {
  padding: 72px 0 28px;
  background: var(--c-bg-alt);
  margin-top: 40px;
  border-top: 1px solid var(--c-border);
}

.site-footer .container {
  position: relative;
}

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

.footer-brand {
  font-size: 0.95rem;
  color: var(--c-text-muted);
  line-height: 1.9;
}

.footer-brand .logo {
  margin-bottom: 16px;
  font-size: 1.3rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--c-text);
}

.footer-col a {
  color: var(--c-text-muted);
  text-decoration: none;
  font-size: 0.93rem;
  transition: color 0.25s ease, padding-left 0.25s ease;
}

.footer-col a:hover {
  color: var(--c-primary);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--c-border);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--c-text-muted);
}

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

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  color: var(--c-text-muted);
  line-height: 1.8;
  text-align: center;
}

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

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1024px) {
  .hero h1 { font-size: 2.8rem; }
  .hero-image { max-width: 420px; }
  .section-title { font-size: 2rem; }
}

@media (max-width: 768px) {
  .feature-block { grid-template-columns: 1fr; gap: 48px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 12px;
    width: calc(100% - 24px);
    flex-direction: column;
    background: var(--c-surface);
    padding: 28px;
    gap: 18px;
    border-radius: var(--radius-organic);
    box-shadow: var(--shadow-float);
    border: 1px solid var(--c-border);
  }
  .main-nav.open { display: flex; }
  .menu-toggle { display: flex; }
  .nav-cta { width: 100%; text-align: center; }
  .hero {
    flex-direction: column;
    text-align: center;
    padding: 130px 0 60px;
  }
  .hero-content { max-width: 100%; padding-right: 0; }
  .hero p { margin-left: auto; margin-right: auto; }
  .hero-buttons { justify-content: center; }
  .hero-image { max-width: 100%; margin-top: 44px; }
  .hero::before { width: 90%; right: -30%; }
  .hero h1 { font-size: 2.3rem; }
  .section-title { font-size: 1.8rem; }
  .cta-banner { padding: 48px 24px; }
}

@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; }
  .btn { justify-content: center; width: 100%; }
  .hero h1 { font-size: 1.95rem; }
  .section-title { font-size: 1.5rem; }
  .cta-banner { padding: 40px 20px; }
  .cta-banner h2 { font-size: 1.7rem; }
  .footer-grid { gap: 36px; }
}