/* ==========================================
   黑料不打烊 · 每日吃瓜 — MelonSlab 设计系统
   "蜜瓜切片 × 独立杂食" 视觉语言
   ========================================== */

:root {
  --bg-cream: #FFF8F2;
  --bg-pink: #FFF1EA;
  --bg-mint: #F2F9F4;
  --melon: #FF6B6B;
  --melon-dark: #E6524F;
  --melon-pale: #FFE0E0;
  --lime: #B7E4C7;
  --lime-deep: #57A773;
  --honey: #FFD166;
  --ink: #2D3E50;
  --ink-soft: #5C6F82;
  --white: #FFFFFF;
  --shadow-melon: 0 10px 32px rgba(255, 107, 107, 0.16);
  --shadow-lime: 0 10px 24px rgba(87, 167, 115, 0.14);
  --shadow-honey: 0 10px 24px rgba(255, 209, 102, 0.2);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --transition: all 0.28s cubic-bezier(0.35, 0.65, 0.45, 1);
}

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

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-cream);
  color: var(--ink);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

.section {
  padding: 90px 0;
  position: relative;
}

.section:nth-child(even) {
  background: var(--bg-pink);
}

/* ————— 顶部导航 ————— */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 246, 238, 0.82);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid rgba(45, 62, 80, 0.06);
  transition: var(--transition);
}

.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: 12px;
  font-weight: 800;
  font-size: 1.35rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--melon), #FF9A76);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  color: #fff;
  box-shadow: var(--shadow-melon);
  transform: rotate(-6deg);
  transition: var(--transition);
}

.logo:hover .logo-icon {
  transform: rotate(6deg) scale(1.05);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: var(--transition);
  position: relative;
  padding: 4px 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 3px;
  border-radius: 3px;
  background: var(--melon);
  transition: var(--transition);
}

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

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

.nav-cta {
  padding: 10px 24px !important;
  border-radius: 100px !important;
  background: var(--melon);
  color: #fff !important;
  font-weight: 600 !important;
  box-shadow: var(--shadow-melon);
}

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

.nav-cta:hover {
  background: var(--melon-dark);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: none;
  background: var(--melon-pale);
  border-radius: 12px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2.5px;
  border-radius: 3px;
  background: var(--ink);
  transition: var(--transition);
}

/* ————— Hero 首页 ————— */
.hero {
  min-height: 72vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 72px;
  background:
    radial-gradient(circle at 82% 22%, rgba(255, 107, 107, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 12% 78%, rgba(183, 228, 199, 0.2) 0%, transparent 42%);
}

.hero::before {
  content: '';
  position: absolute;
  top: 18%;
  right: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(255, 209, 102, 0.16);
  z-index: 0;
}

.hero::after {
  content: '🍉';
  position: absolute;
  bottom: 12%;
  right: 7%;
  font-size: 74px;
  transform: rotate(18deg);
  opacity: 0.28;
  filter: saturate(0.9);
  z-index: 0;
}

.hero-content {
  max-width: 760px;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 100px;
  background: var(--lime);
  color: var(--ink);
  margin-bottom: 22px;
  letter-spacing: 0.04em;
  box-shadow: var(--shadow-lime);
}

.hero h1 {
  font-size: clamp(2.6rem, 7vw, 4.4rem);
  line-height: 1.14;
  margin-bottom: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.hero h1 em {
  font-style: italic;
  background: linear-gradient(120deg, var(--melon) 0%, #FF8E53 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  padding-right: 0.05em;
}

.hero p {
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  align-items: center;
}

.hero-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-melon);
  transform: rotate(2deg);
  transition: var(--transition);
}

.hero-image:hover {
  transform: rotate(0deg) scale(1.01);
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ————— 按钮 ————— */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 30px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: var(--transition);
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--melon);
  color: #fff;
  box-shadow: var(--shadow-melon);
}

.btn-primary:hover {
  background: var(--melon-dark);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 14px 34px rgba(255, 107, 107, 0.28);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--melon);
  color: var(--melon);
}

.btn-outline:hover {
  background: var(--melon-pale);
  transform: translateY(-2px);
}

/* ————— 标签/标题 ————— */
.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 14px;
  color: var(--melon);
  text-transform: uppercase;
  position: relative;
  padding-left: 18px;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--honey);
}

.section-title {
  font-size: clamp(1.9rem, 4.5vw, 2.9rem);
  margin-bottom: 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  position: relative;
}

.section-title::after {
  content: '';
  display: inline-block;
  width: 42px;
  height: 8px;
  margin-left: 10px;
  border-radius: 8px;
  background: repeating-linear-gradient(135deg, var(--melon) 0 6px, var(--honey) 6px 12px);
  vertical-align: middle;
}

.section-desc {
  max-width: 620px;
  color: var(--ink-soft);
  margin-bottom: 44px;
  font-size: 1rem;
  line-height: 1.8;
}

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

.category-card {
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  border: 1px solid rgba(45, 62, 80, 0.05);
  background: var(--white);
  box-shadow: 0 4px 20px rgba(45, 62, 80, 0.04);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: -32px;
  right: -32px;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(255, 107, 107, 0.06);
  transition: var(--transition);
}

.category-card:nth-child(2n) {
  background: #FFFCF8;
}

.category-card:nth-child(3n) {
  background: #F7FCF9;
}

.category-card:hover {
  transform: translateY(-5px) rotate(-0.5deg);
  box-shadow: var(--shadow-melon);
  border-color: rgba(255, 107, 107, 0.15);
}

.category-card:hover::before {
  transform: scale(2.4);
  background: rgba(255, 107, 107, 0.1);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: var(--melon-pale);
  transition: var(--transition);
}

.category-card:nth-child(2n) .card-icon {
  background: var(--lime);
}

.category-card:nth-child(3n) .card-icon {
  background: #FFF3D6;
}

.card-icon:hover {
  transform: scale(1.1) rotate(-8deg);
}

.card-link {
  font-weight: 700;
  font-size: 0.88rem;
  text-decoration: none;
  color: var(--melon);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.card-link:hover {
  gap: 12px;
  color: var(--melon-dark);
}

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

.feature-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--lime);
  box-shadow: var(--shadow-lime);
  transform: rotate(-1.5deg);
  transition: var(--transition);
  position: relative;
}

.feature-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 3px dashed rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.feature-image:hover {
  transform: rotate(0deg) scale(1.015);
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
}

.feature-text {
  padding-right: 20px;
}

.feature-text .section-title::after {
  display: none;
}

.feature-list {
  list-style: none;
  margin-top: 18px;
}

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.98rem;
  color: var(--ink);
  border-bottom: 1px dashed rgba(45, 62, 80, 0.1);
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list li::before {
  content: '✦';
  font-weight: 700;
  color: var(--melon);
  font-size: 1rem;
  flex-shrink: 0;
}

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

.stat-item {
  padding: 32px 20px;
  border-radius: var(--radius-lg);
  background: var(--white);
  border: 1px solid rgba(45, 62, 80, 0.05);
  box-shadow: 0 6px 24px rgba(45, 62, 80, 0.05);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 4px;
  border-radius: 0 0 8px 8px;
  background: var(--honey);
}

.stat-item:nth-child(2)::before {
  background: var(--melon);
}

.stat-item:nth-child(3)::before {
  background: var(--lime-deep);
}

.stat-item:nth-child(4)::before {
  background: #FF9A76;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-honey);
  background: #FFFDF8;
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.15;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.stat-number::after {
  content: '+';
  color: var(--melon);
  font-size: 1.6rem;
  margin-left: 2px;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin-top: 8px;
  letter-spacing: 0.03em;
}

/* ————— 内容墙 ————— */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 26px;
}

.content-wall-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--white);
  border: 1px solid rgba(45, 62, 80, 0.05);
  box-shadow: 0 4px 16px rgba(45, 62, 80, 0.04);
  transition: var(--transition);
}

.content-wall-item:nth-child(3n+1) {
  background: #FFFAF2;
}

.content-wall-item:nth-child(3n+2) {
  background: #FFF6F6;
}

.content-wall-item:nth-child(3n+3) {
  background: #F3FAF6;
}

.content-wall-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-melon);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: var(--transition);
}

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

.content-wall-body {
  padding: 22px 22px 26px;
}

.content-wall-body h3 {
  font-size: 1.08rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}

.content-wall-body p {
  font-size: 0.88rem;
  color: var(--ink-soft);
  line-height: 1.7;
}

/* ————— FAQ ————— */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid rgba(45, 62, 80, 0.07);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: var(--white);
  box-shadow: 0 2px 10px rgba(45, 62, 80, 0.03);
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(255, 107, 107, 0.18);
}

.faq-item.open {
  border-color: rgba(255, 107, 107, 0.12);
  box-shadow: var(--shadow-melon);
}

.faq-item .faq-question {
  padding: 20px 24px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  background: transparent;
}

.faq-question::after {
  content: '';
  width: 12px;
  height: 12px;
  border-right: 2.5px solid var(--melon);
  border-bottom: 2.5px solid var(--melon);
  transform: rotate(45deg);
  transition: var(--transition);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.open .faq-question::after {
  transform: rotate(-135deg);
  border-color: var(--lime-deep);
}

.faq-item .faq-answer {
  padding: 0 24px 22px;
  display: none;
  color: var(--ink-soft);
  font-size: 0.93rem;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  display: block;
  animation: faqFade 0.3s ease;
}

@keyframes faqFade {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ————— CTA 横幅 ————— */
.cta-banner {
  padding: 64px 40px;
  text-align: center;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--melon) 0%, #FF8E53 60%, #FFB15E 100%);
  box-shadow: 0 20px 48px rgba(255, 107, 107, 0.25);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -40px;
  left: -40px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -50px;
  right: -30px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.cta-banner h2 {
  color: #fff;
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--melon);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  background: var(--honey);
  color: var(--ink);
  transform: translateY(-2px);
}

/* ————— 页脚 ————— */
.site-footer {
  padding: 60px 0 30px;
  background: linear-gradient(160deg, var(--bg-cream) 0%, var(--bg-pink) 100%);
  border-top: 1px solid rgba(45, 62, 80, 0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.8;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--ink);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.footer-col a {
  display: block;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 5px 0;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--melon);
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(45, 62, 80, 0.08);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

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

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

.seo-description {
  max-width: 620px;
  margin: 0 auto 48px;
  color: var(--ink-soft);
  line-height: 1.8;
  text-align: center;
}

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

/* ————— 响应式 ————— */
@media (max-width: 900px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .feature-text {
    padding-right: 0;
  }

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

@media (max-width: 768px) {
  .header-inner {
    height: 64px;
  }

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

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

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

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    width: 100%;
    background: rgba(255, 248, 242, 0.98);
    backdrop-filter: blur(16px);
    padding: 24px 28px;
    gap: 18px;
    border-bottom: 1px solid rgba(45, 62, 80, 0.06);
    box-shadow: 0 12px 32px rgba(45, 62, 80, 0.06);
  }

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

  .nav-cta {
    text-align: center;
    display: block;
  }

  .hero {
    min-height: 60vh;
    padding-top: 64px;
  }

  .hero::after {
    font-size: 48px;
    right: 4%;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .section {
    padding: 60px 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;
    align-items: stretch;
    width: 100%;
  }

  .hero-buttons .btn {
    justify-content: center;
  }

  .hero h1 {
    font-size: 1.9rem;
  }

  .cta-banner {
    padding: 48px 24px;
  }

  .cta-banner h2 {
    font-size: 1.4rem;
  }

  .section-title {
    font-size: 1.6rem;
  }

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