/* =============================================
   🍉 吃瓜52 · Juicy Editorial Design System
   "Fresh Watermelon Gossip" - Awwwards Style
   ============================================= */

/* ---------- 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: #FFF9F0;
  color: #2D3E4E;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: #FF6B6B; color: #fff; }

/* ---------- 核心布局 ---------- */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) { background:#FFF5F0; }

/* ---------- 导航 ---------- */
.site-header { 
  position:fixed; top:0; left:0; width:100%; z-index:1000; 
  background:rgba(255,249,240,0.88); 
  backdrop-filter:blur(20px) saturate(180%);
  -webkit-backdrop-filter:blur(20px) saturate(180%);
  border-bottom:1px solid rgba(255,107,107,0.12); 
  box-shadow: 0 2px 24px rgba(255,107,107,0.06);
}
.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:1.35rem; text-decoration:none; 
  color:#2D3E4E; letter-spacing:-0.5px;
}
.logo-icon { 
  width:38px; height:38px; border-radius:14px; 
  display:flex; align-items:center; justify-content:center; 
  font-size:1.1rem; 
  background:linear-gradient(135deg,#FF6B6B 0%,#FF477E 100%);
  color:#fff; 
  box-shadow:0 4px 16px rgba(255,107,107,0.35);
  transform:rotate(-8deg);
  transition:transform 0.3s;
}
.logo:hover .logo-icon { transform:rotate(0deg) scale(1.1); }
.main-nav { display:flex; align-items:center; gap:32px; list-style:none; }
.main-nav a { 
  text-decoration:none; font-size:0.92rem; font-weight:500; 
  transition:0.2s; color:#2D3E4E; position:relative;
}
.main-nav a::after {
  content:''; position:absolute; bottom:-4px; left:0;
  width:0%; height:2px; border-radius:4px;
  background:linear-gradient(90deg,#FF6B6B,#FFD93D);
  transition:width 0.3s;
}
.main-nav a:hover::after { width:100%; }
.main-nav a:hover { color:#FF477E; }
.nav-cta { 
  padding:10px 24px; border-radius:50px; 
  color:#fff!important; font-weight:700; 
  background:linear-gradient(135deg,#FF6B6B,#FF477E);
  box-shadow:0 4px 16px rgba(255,107,107,0.35);
  transition:transform 0.2s, box-shadow 0.2s!important;
}
.nav-cta::after { display:none; }
.nav-cta:hover { 
  transform:translateY(-2px); 
  box-shadow:0 6px 24px rgba(255,107,107,0.45)!important; 
  color:#fff!important;
}
.menu-toggle { 
  display:none; background:none; border:none; cursor:pointer;
  padding:8px; border-radius:8px; color:#2D3E4E;
}

/* ---------- Hero 大胆西瓜版式 ---------- */
.hero { 
  min-height:80vh; display:flex; align-items:center; 
  position:relative; overflow:hidden;
  background:
    radial-gradient(ellipse at 85% 20%, rgba(255,107,107,0.1) 0%, transparent 60%),
    radial-gradient(ellipse at 10% 80%, rgba(45,143,111,0.08) 0%, transparent 50%),
    #FFF9F0;
}
.hero::before {
  content:'';
  position:absolute;
  right:-160px; top:-160px;
  width:480px; height:480px;
  border-radius:50%;
  background:linear-gradient(135deg, rgba(255,107,107,0.14), rgba(255,217,61,0.06));
  border:3px dashed rgba(255,107,107,0.18);
  animation:spinSlow 40s linear infinite;
}
.hero::after {
  content:'';
  position:absolute;
  left:-80px; bottom:-60px;
  width:300px; height:300px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(45,143,111,0.08) 0%, transparent 70%);
  border:2px dashed rgba(45,143,111,0.12);
}
@keyframes spinSlow { to { transform:rotate(360deg); } }
.hero-content { max-width:760px; position:relative; z-index:2; }
.hero-eyebrow { 
  display:inline-block; font-size:0.82rem; font-weight:800; 
  padding:6px 18px; border-radius:50px; margin-bottom:20px; 
  background:rgba(255,107,107,0.12); color:#FF477E; 
  letter-spacing:2px; text-transform:uppercase;
  border:1px solid rgba(255,107,107,0.15);
  backdrop-filter:blur(4px);
}
.hero h1 { 
  font-size:3.4rem; line-height:1.12; margin-bottom:24px; 
  font-weight:900; letter-spacing:-1.5px;
  background:linear-gradient(120deg,#2D3E4E 30%,#FF477E 70%,#FF6B6B 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero p { 
  font-size:1.15rem; opacity:0.72; max-width:560px; 
  margin-bottom:36px; line-height:1.8; 
  border-left:3px solid #FFD93D;
  padding-left:20px;
}
.hero-buttons { display:flex; gap:16px; }

/* ---------- 按钮 ---------- */
.btn { 
  display:inline-flex; align-items:center; gap:8px; 
  padding:13px 32px; border-radius:50px; 
  font-weight:700; cursor:pointer; border:none; 
  text-decoration:none; transition:0.25s; font-size:0.95rem;
}
.btn-primary { 
  color:#fff; 
  background:linear-gradient(135deg,#FF6B6B 0%,#FF477E 100%);
  box-shadow:0 4px 20px rgba(255,107,107,0.3);
}
.btn-primary:hover { 
  transform:translateY(-2px); 
  box-shadow:0 8px 32px rgba(255,107,107,0.4);
}
.btn-outline { 
  background:transparent; border:2px solid #2D3E4E; 
  color:#2D3E4E; 
  transition:0.25s;
}
.btn-outline:hover {
  background:#2D3E4E; color:#FFF9F0;
  transform:translateY(-2px);
  box-shadow:0 4px 16px rgba(45,62,78,0.2);
}

/* ---------- 标签/标题 ---------- */
.section-label { 
  display:inline-block; font-size:0.8rem; font-weight:800; 
  letter-spacing:3px; margin-bottom:14px; 
  color:#FF477E; text-transform:uppercase;
  position:relative; padding-left:24px;
}
.section-label::before {
  content:'🍉';
  position:absolute; left:0; top:50%;
  transform:translateY(-50%);
  font-size:0.9rem;
  animation:wiggle 3s ease-in-out infinite;
}
@keyframes wiggle {
  0%, 100% { transform:translateY(-50%) rotate(0deg); }
  25% { transform:translateY(-50%) rotate(12deg); }
  75% { transform:translateY(-50%) rotate(-12deg); }
}
.section-title { 
  font-size:2.2rem; margin-bottom:16px; 
  font-weight:900; letter-spacing:-0.5px; 
  line-height:1.2; color:#2D3E4E;
}
.section-desc { 
  max-width:640px; opacity:0.68; margin-bottom:48px; 
  font-size:1.05rem; line-height:1.7;
}

/* ---------- 卡片网格 ---------- */
.cards-grid { 
  display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); 
  gap:28px; 
}
.category-card { 
  border-radius:20px; padding:32px 28px; 
  border:1px solid rgba(45,143,111,0.1);
  background:rgba(255,255,255,0.8);
  backdrop-filter:blur(8px);
  transition:0.3s cubic-bezier(0.4,0,0.2,1);
  position:relative;
  overflow:hidden;
}
.category-card::before {
  content:''; position:absolute; top:0; left:0; right:0;
  height:3px;
  background:linear-gradient(90deg,#FF6B6B,#FFD93D,#2D8F6F);
  background-size:200% 100%;
  animation:gradientShift 3s ease infinite;
  opacity:0;
  transition:opacity 0.3s;
}
@keyframes gradientShift {
  0%,100% { background-position:0% 50%; }
  50% { background-position:100% 50%; }
}
.category-card:hover::before { opacity:1; }
.category-card:hover { 
  transform:translateY(-6px) scale(1.02); 
  box-shadow:0 12px 40px rgba(255,107,107,0.12), 0 4px 12px rgba(45,143,111,0.08);
  border-color:rgba(255,107,107,0.2);
}
.card-icon { 
  width:52px; height:52px; border-radius:16px; 
  display:flex; align-items:center; justify-content:center; 
  margin-bottom:20px; font-size:1.4rem;
  background:linear-gradient(135deg, rgba(255,107,107,0.1), rgba(255,217,61,0.1));
  border:1px solid rgba(255,107,107,0.1);
  transition:transform 0.3s;
}
.category-card:hover .card-icon { transform:rotate(-10deg) scale(1.1); }
.card-link { 
  font-weight:700; font-size:0.85rem; text-decoration:none; 
  color:#FF477E; display:inline-flex; align-items:center; gap:6px;
  transition:gap 0.2s;
}
.card-link:hover { gap:12px; color:#FF6B6B; }

/* ---------- 特性块 ---------- */
.feature-block { 
  display:grid; grid-template-columns:1fr 1fr; 
  gap:64px; align-items:center; 
}
.feature-image { 
  border-radius:24px; overflow:hidden; 
  box-shadow:0 16px 48px rgba(45,143,111,0.12);
  position:relative;
}
.feature-image::after {
  content:'';
  position:absolute; inset:0;
  background:linear-gradient(180deg, transparent 50%, rgba(255,107,107,0.1));
  border-radius:24px;
  pointer-events:none;
}
.feature-image img { width:100%; height:auto; display:block; }
.feature-text { position:relative; }
.feature-text::before {
  content:''; position:absolute; left:-24px; top:0;
  width:3px; height:64px; border-radius:4px;
  background:linear-gradient(180deg,#FF6B6B,#FFD93D);
}
.feature-list { list-style:none; margin-top:8px; }
.feature-list li { 
  padding:8px 0; display:flex; align-items:center; gap:10px; 
  font-weight:500; font-size:1rem;
}
.feature-list li::before { 
  content:'✓'; font-weight:900; 
  color:#2D8F6F; background:rgba(45,143,111,0.1);
  width:24px; height:24px; border-radius:50%;
  display:inline-flex; align-items:center; justify-content:center;
  font-size:0.75rem;
}

/* ---------- 数据条 ---------- */
.stats-bar { 
  display:grid; grid-template-columns:repeat(4,1fr); 
  gap:24px; text-align:center; 
}
.stat-item { 
  padding:32px 20px; border-radius:20px; 
  border:1px solid rgba(255,107,107,0.1);
  background:rgba(255,255,255,0.7);
  backdrop-filter:blur(8px);
  transition:0.3s;
}
.stat-item:hover {
  transform:translateY(-4px);
  box-shadow:0 8px 32px rgba(255,107,107,0.1);
  border-color:rgba(255,107,107,0.25);
}
.stat-number { 
  font-size:2.6rem; font-weight:900; 
  background:linear-gradient(135deg,#FF6B6B,#FF477E);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  letter-spacing:-1px;
  font-variant-numeric:tabular-nums;
}
.stat-label { 
  font-size:0.88rem; opacity:0.6; margin-top:8px; 
  font-weight:500; 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:20px; overflow:hidden; 
  border:1px solid rgba(0,0,0,0.04);
  background:#fff;
  transition:0.3s cubic-bezier(0.4,0,0.2,1);
  box-shadow:0 2px 8px rgba(0,0,0,0.03);
}
.content-wall-item:hover { 
  transform:translateY(-6px); 
  box-shadow:0 16px 48px rgba(255,107,107,0.15), 0 4px 12px rgba(0,0,0,0.04);
  border-color:rgba(255,107,107,0.15);
}
.content-wall-item img { 
  width:100%; height:200px; object-fit:cover; 
  transition:transform 0.5s;
  border-radius:20px 20px 0 0;
}
.content-wall-item:hover img { transform:scale(1.05); }
.content-wall-body { padding:24px; }
.content-wall-body h3 { font-size:1.1rem; font-weight:700; margin-bottom:8px; line-height:1.4; }
.content-wall-body p { font-size:0.88rem; opacity:0.6; line-height:1.6; }

/* ---------- FAQ ---------- */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { 
  border:1px solid rgba(255,107,107,0.12); 
  border-radius:16px; margin-bottom:10px; 
  overflow:hidden; cursor:pointer; 
  background:rgba(255,255,255,0.75);
  backdrop-filter:blur(4px);
  transition:0.3s;
}
.faq-item:hover { border-color:rgba(255,107,107,0.3); }
.faq-item.open { border-color:rgba(255,107,107,0.3); box-shadow:0 4px 20px rgba(255,107,107,0.08); }
.faq-item .faq-question { 
  padding:18px 24px; font-weight:700; 
  display:flex; justify-content:space-between; 
  align-items:center; font-size:1rem;
  color:#2D3E4E;
}
.faq-item .faq-question::after {
  content:'+'; font-size:1.4rem; font-weight:400;
  color:#FF477E; transition:transform 0.3s;
}
.faq-item.open .faq-question::after { transform:rotate(45deg); }
.faq-item .faq-answer { 
  padding:0 24px 18px; display:none; opacity:0.7; 
  line-height:1.75; font-size:0.95rem;
  border-top:1px solid rgba(255,107,107,0.08);
  margin-top:4px; padding-top:16px;
}
.faq-item.open .faq-answer { display:block; animation:fadeIn 0.3s; }
@keyframes fadeIn { from { opacity:0; transform:translateY(-4px); } to { opacity:0.7; transform:translateY(0); } }

/* ---------- CTA横幅 ---------- */
.cta-banner { 
  padding:64px 24px; text-align:center; 
  border-radius:28px; color:#fff; 
  background:linear-gradient(135deg,#FF6B6B 0%,#FF477E 50%,#FF8E8E 100%);
  box-shadow:0 20px 60px rgba(255,107,107,0.3);
  position:relative;
  overflow:hidden;
}
.cta-banner::before {
  content:'🍉';
  position:absolute; left:8%; top:20%;
  font-size:3rem; opacity:0.15;
  animation:float 6s ease-in-out infinite;
}
.cta-banner::after {
  content:'🍉';
  position:absolute; right:10%; bottom:15%;
  font-size:4rem; opacity:0.12;
  animation:float 8s ease-in-out infinite reverse;
}
@keyframes float {
  0%,100% { transform:translateY(0) rotate(-8deg); }
  50% { transform:translateY(-16px) rotate(8deg); }
}
.cta-banner h2 { 
  color:#fff; font-size:2.2rem; font-weight:900; 
  margin-bottom:12px; letter-spacing:-0.5px;
  text-shadow:0 2px 12px rgba(0,0,0,0.1);
}
.cta-banner p { color:rgba(255,255,255,0.9); margin-bottom:24px; font-size:1.05rem; }
.cta-banner .btn-primary { 
  background:#fff; color:#FF477E; 
  box-shadow:0 4px 24px rgba(0,0,0,0.15);
  font-size:1rem; padding:14px 40px;
}

/* ---------- 页脚 ---------- */
.site-footer { 
  padding:64px 0 28px; 
  background:linear-gradient(180deg,#2D3E4E 0%,#1a2a38 100%);
  color:rgba(255,255,255,0.85);
  border-top:4px solid transparent;
  border-image:linear-gradient(90deg,#FF6B6B,#FFD93D,#2D8F6F) 1;
}
.footer-grid { 
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr; 
  gap:48px; 
}
.footer-brand { padding-right:32px; }
.footer-brand .logo { color:#fff; margin-bottom:16px; }
.footer-brand p { font-size:0.9rem; opacity:0.6; line-height:1.7; }
.footer-col h4 { 
  color:#fff; font-size:0.95rem; font-weight:700; 
  margin-bottom:16px; letter-spacing:1px; 
  position:relative; padding-bottom:8px;
}
.footer-col h4::after {
  content:''; position:absolute; bottom:0; left:0;
  width:24px; height:2px; border-radius:2px;
  background:linear-gradient(90deg,#FF6B6B,#FFD93D);
}
.footer-col a { 
  display:block; color:rgba(255,255,255,0.6); 
  text-decoration:none; padding:5px 0; font-size:0.9rem;
  transition:0.2s;
}
.footer-col a:hover { color:#FF6B6B; padding-left:6px; }
.footer-bottom { 
  border-top:1px solid rgba(255,255,255,0.1); 
  margin-top:48px; padding-top:24px; 
  text-align:center; font-size:0.85rem;
  color:rgba(255,255,255,0.5);
}

/* ---------- 工具类 ---------- */
.text-accent { color:#FF477E; font-weight:700; }
.text-center { text-align:center; }
.seo-description { 
  max-width:600px; margin:0 auto 48px; opacity:0.68; 
  line-height:1.75; font-size:1.05rem;
}
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ---------- 辅助装饰 ---------- */
.section-title .emoji {
  display:inline-block;
  animation:wiggle 4s ease-in-out infinite;
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .hero h1 { font-size:2.4rem; }
  .section-title { font-size:1.7rem; }
  .feature-block { grid-template-columns:1fr; gap:40px; }
  .feature-text::before { left:-12px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); gap:16px; }
  .footer-grid { grid-template-columns:1fr 1fr; gap:32px; }
  .main-nav { display:none; }
  .menu-toggle { display:flex; align-items:center; gap:4px; font-size:0.9rem; }
  .main-nav.open { 
    display:flex; flex-direction:column; 
    position:absolute; top:72px; left:0; width:100%; 
    background:rgba(255,249,240,0.98); padding:24px;
    border-bottom:1px solid rgba(255,107,107,0.15);
    box-shadow:0 12px 32px rgba(0,0,0,0.06);
    backdrop-filter:blur(20px);
    gap:20px;
    align-items:flex-start;
  }
  .nav-cta { align-self:flex-start; }
}

@media (max-width: 480px) {
  .section { padding:60px 0; }
  .hero { min-height:60vh; }
  .hero h1 { font-size:1.9rem; }
  .hero p { font-size:1rem; }
  .cards-grid, .content-wall, .stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; gap:28px; }
  .hero-buttons { flex-direction:column; }
  .btn { justify-content:center; }
  .cta-banner h2 { font-size:1.6rem; }
  .stat-number { font-size:2rem; }
  .stat-item { padding:24px 16px; }
}

/* ---------- 超宽屏优化 ---------- */
@media (min-width: 1400px) {
  .container { max-width:1320px; }
  .hero h1 { font-size:3.8rem; }
}