/* ============================================
   黑料网吃瓜不打烊 · 设计系统
   Style: Editorial Brutalist Pop · 奶油纸感
   Palette: 奶油白 / 珊瑚红 / 电光紫 / 蜜黄
   ============================================ */

:root {
  --paper: #fff7ef;
  --paper-2: #fdeede;
  --ink: #1d1428;
  --ink-soft: #5a4f68;
  --coral: #ff3d5a;
  --coral-deep: #d81e3c;
  --grape: #6a3bff;
  --honey: #ffc93c;
  --mint: #38e0b0;
  --line: #1d1428;
  --shadow: 6px 6px 0 var(--ink);
  --shadow-sm: 4px 4px 0 var(--ink);
  --shadow-hover: 10px 10px 0 var(--ink);
}

/* 基础重置 */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x:hidden;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(255,201,60,0.18) 0, transparent 22%),
    radial-gradient(circle at 88% 6%, rgba(106,59,255,0.10) 0, transparent 26%),
    radial-gradient(circle at 76% 92%, rgba(255,61,90,0.10) 0, transparent 28%);
}

/* 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: var(--paper-2); }

/* ============ 导航 ============ */
.site-header {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  background: rgba(255,247,239,0.88);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 2px solid var(--line);
}
.site-header::after {
  content:"";
  position:absolute; left:0; right:0; bottom:-6px;
  height:4px;
  background: repeating-linear-gradient(90deg, var(--coral) 0 24px, var(--honey) 24px 48px, var(--grape) 48px 72px);
  opacity:0.9;
}
.header-inner {
  display:flex; align-items:center; justify-content:space-between;
  height:68px; max-width:1200px; margin:0 auto; padding:0 24px;
}
.logo {
  display:flex; align-items:center; gap:10px;
  font-weight: 900; font-size: 1.18rem; letter-spacing:-0.02em;
  text-decoration:none; color: var(--ink);
}
.logo-icon {
  width:38px; height:38px; border-radius: 12px;
  display:flex; align-items:center; justify-content:center;
  font-size: 1.05rem;
  background: var(--coral);
  color:#fff;
  border: 2px solid var(--line);
  box-shadow: 3px 3px 0 var(--ink);
  transform: rotate(-4deg);
}
.logo:hover .logo-icon { transform: rotate(4deg) scale(1.05); transition:0.25s; }
.logo-icon { transition: 0.25s cubic-bezier(.34,1.56,.64,1); }

.main-nav { display:flex; align-items:center; gap:6px; list-style:none; }
.main-nav a {
  text-decoration:none; font-size:0.9rem; font-weight:700;
  color: var(--ink);
  padding: 8px 14px;
  border-radius: 999px;
  border: 2px solid transparent;
  transition: 0.2s;
}
.main-nav a:hover {
  background: var(--honey);
  border-color: var(--line);
  box-shadow: 2px 2px 0 var(--ink);
  transform: translate(-1px,-1px);
}
.nav-cta {
  padding: 9px 20px !important;
  border-radius: 999px !important;
  color: #fff !important;
  font-weight: 800 !important;
  background: var(--grape);
  border: 2px solid var(--line) !important;
  box-shadow: 3px 3px 0 var(--ink);
}
.nav-cta:hover {
  background: var(--coral) !important;
  box-shadow: 4px 4px 0 var(--ink) !important;
  transform: translate(-1px,-1px);
}
.menu-toggle {
  display:none;
  width:44px; height:40px;
  border-radius:10px;
  background: var(--honey);
  border:2px solid var(--line);
  box-shadow: 3px 3px 0 var(--ink);
  align-items:center; justify-content:center;
  font-size:1.1rem; cursor:pointer;
}

/* ============ Hero ============ */
.hero {
  min-height:78vh;
  display:flex; align-items:center;
  padding: 140px 0 80px;
  position:relative;
  overflow:hidden;
}
.hero::before {
  content:"";
  position:absolute; top: 12%; right: -120px;
  width: 420px; height: 420px; border-radius:50%;
  background: radial-gradient(circle, rgba(106,59,255,0.22), transparent 65%);
  filter: blur(10px);
  z-index:0;
}
.hero::after {
  content:"吃瓜不打烊";
  position:absolute;
  bottom: 8%; left: -20px;
  font-size: 8rem; font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 2px rgba(29,20,40,0.06);
  letter-spacing: -0.04em;
  pointer-events:none;
  white-space:nowrap;
  z-index:0;
}
.hero-content { max-width: 760px; position:relative; z-index:2; }
.hero-eyebrow {
  display:inline-block;
  font-size:0.82rem; font-weight:800; letter-spacing: 0.14em;
  padding: 7px 18px; border-radius: 999px;
  margin-bottom: 22px;
  background: var(--honey);
  color: var(--ink);
  border: 2px solid var(--line);
  box-shadow: 3px 3px 0 var(--ink);
  transform: rotate(-1.5deg);
  text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(2.2rem, 5.6vw, 4.4rem);
  line-height: 1.02;
  margin-bottom: 24px;
  font-weight: 900;
  letter-spacing: -0.035em;
  color: var(--ink);
}
.hero h1 em {
  font-style: normal;
  color: var(--coral);
  background: linear-gradient(180deg, transparent 62%, rgba(255,201,60,0.85) 62%);
  padding: 0 4px;
}
.hero p {
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: 580px;
  margin-bottom: 34px;
  font-weight: 500;
}
.hero-buttons { display:flex; gap:16px; flex-wrap:wrap; }
.hero-image {
  border-radius: 20px; overflow:hidden;
  border: 2px solid var(--line);
  box-shadow: var(--shadow);
  transform: rotate(1.2deg);
  margin-top: 40px;
}
.hero-image img { width:100%; height:auto; display:block; }

/* ============ 按钮 ============ */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding: 14px 30px; border-radius: 999px;
  font-weight: 800; font-size:0.95rem;
  cursor:pointer; border: 2px solid var(--line);
  text-decoration:none;
  transition: 0.18s cubic-bezier(.34,1.56,.64,1);
  font-family: inherit;
  letter-spacing: 0.01em;
}
.btn-primary {
  color:#fff;
  background: var(--coral);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--coral-deep);
  box-shadow: var(--shadow);
  transform: translate(-2px,-2px);
}
.btn-outline {
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
}
.btn-outline:hover {
  background: var(--honey);
  box-shadow: var(--shadow);
  transform: translate(-2px,-2px);
}

/* ============ 标签/标题 ============ */
.section-label {
  display:inline-block;
  font-size: 0.78rem; font-weight: 800;
  letter-spacing: 0.18em;
  padding: 5px 14px; border-radius: 999px;
  margin-bottom: 16px;
  background: var(--grape);
  color: #fff;
  text-transform: uppercase;
  box-shadow: 3px 3px 0 var(--ink);
  border: 2px solid var(--line);
}
.section-title {
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  margin-bottom: 16px;
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--ink);
}
.section-desc {
  max-width: 620px;
  color: var(--ink-soft);
  margin-bottom: 44px;
  font-size: 1.02rem;
  font-weight: 500;
}
.text-center .section-desc { margin-left:auto; margin-right:auto; }

/* ============ 卡片网格 ============ */
.cards-grid {
  display:grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 26px;
}
.category-card {
  border-radius: 18px;
  padding: 30px 26px;
  background: #fff;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: 0.22s cubic-bezier(.34,1.56,.64,1);
  position: relative;
  overflow: hidden;
}
.category-card::after {
  content:"";
  position:absolute; right:-30px; top:-30px;
  width: 90px; height:90px; border-radius:50%;
  background: var(--honey);
  opacity:0.35;
  transition: 0.3s;
}
.category-card:hover {
  transform: translate(-3px,-3px);
  box-shadow: 8px 8px 0 var(--ink);
}
.category-card:hover::after {
  transform: scale(1.6);
  opacity:0.55;
}
.category-card h3 {
  font-size: 1.25rem; font-weight: 900;
  margin-bottom: 8px; letter-spacing:-0.02em;
}
.category-card p { color: var(--ink-soft); font-size:0.94rem; margin-bottom:14px; }
.card-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display:flex; align-items:center; justify-content:center;
  margin-bottom: 18px; font-size: 1.4rem;
  background: var(--coral);
  color:#fff;
  border: 2px solid var(--line);
  box-shadow: 3px 3px 0 var(--ink);
  position: relative; z-index:2;
}
.category-card:nth-child(2n) .card-icon { background: var(--grape); }
.category-card:nth-child(3n) .card-icon { background: var(--mint); color: var(--ink); }
.category-card:nth-child(4n) .card-icon { background: var(--honey); color: var(--ink); }
.card-link {
  font-weight: 800; font-size: 0.86rem;
  text-decoration: none;
  color: var(--coral-deep);
  border-bottom: 2px solid var(--coral);
  padding-bottom: 2px;
  position: relative; z-index:2;
}
.card-link:hover { color: var(--grape); border-color: var(--grape); }

/* ============ 特性块 ============ */
.feature-block {
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.feature-image {
  border-radius: 20px; overflow:hidden;
  border: 2px solid var(--line);
  box-shadow: var(--shadow);
  transform: rotate(-1.5deg);
}
.feature-image img { width:100%; height:auto; display:block; }
.feature-text h2 { font-size: clamp(1.6rem,3vw,2.3rem); font-weight:900; letter-spacing:-0.03em; margin-bottom:14px; line-height:1.15; }
.feature-text p { color: var(--ink-soft); margin-bottom: 20px; }
.feature-list { list-style:none; }
.feature-list li {
  padding: 9px 0;
  display:flex; align-items:center; gap: 12px;
  font-weight: 600;
  color: var(--ink);
}
.feature-list li::before {
  content:'✓';
  font-weight: 900;
  width: 26px; height: 26px;
  border-radius: 8px;
  background: var(--mint);
  color: var(--ink);
  display:flex; align-items:center; justify-content:center;
  font-size: 0.8rem;
  border: 2px solid var(--line);
  box-shadow: 2px 2px 0 var(--ink);
  flex: 0 0 auto;
}

/* ============ 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: 18px;
  background: #fff;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: 0.2s;
}
.stat-item:hover { transform: translate(-2px,-2px); box-shadow: var(--shadow); }
.stat-item:nth-child(1) { background: var(--honey); }
.stat-item:nth-child(2) { background: #fff; }
.stat-item:nth-child(3) { background: var(--grape); color:#fff; }
.stat-item:nth-child(4) { background: var(--coral); color:#fff; }
.stat-number {
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height:1;
}
.stat-label {
  font-size: 0.9rem;
  margin-top: 10px;
  font-weight: 600;
  opacity: 0.75;
}

/* ============ 内容墙 ============ */
.content-wall {
  display:grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 26px;
}
.content-wall-item {
  border-radius: 18px; overflow:hidden;
  background: #fff;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: 0.22s cubic-bezier(.34,1.56,.64,1);
}
.content-wall-item:hover {
  transform: translate(-3px,-3px);
  box-shadow: 8px 8px 0 var(--ink);
}
.content-wall-item img {
  width:100%; height:200px; object-fit:cover;
  display:block;
  border-bottom: 2px solid var(--line);
}
.content-wall-body { padding: 22px; }
.content-wall-body h3 { font-size:1.12rem; font-weight:900; margin-bottom:8px; letter-spacing:-0.02em; }
.content-wall-body p { color: var(--ink-soft); font-size:0.92rem; }

/* ============ FAQ ============ */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  border: 2px solid var(--line);
  border-radius: 16px;
  margin-bottom: 14px;
  overflow:hidden;
  cursor:pointer;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: 0.2s;
}
.faq-item:hover { transform: translate(-2px,-2px); box-shadow: var(--shadow); }
.faq-item .faq-question {
  padding: 20px 24px;
  font-weight: 800;
  font-size: 1.02rem;
  display:flex; justify-content:space-between; align-items:center;
  gap: 16px;
}
.faq-item .faq-question::after {
  content:'+';
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--coral);
  flex: 0 0 auto;
  transition: 0.25s;
}
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-item .faq-answer {
  padding: 0 24px 22px;
  display:none;
  color: var(--ink-soft);
  font-weight: 500;
}
.faq-item.open { background: var(--paper-2); }
.faq-item.open .faq-answer { display:block; }

/* ============ CTA 横幅 ============ */
.cta-banner {
  padding: 64px 40px;
  text-align:center;
  border-radius: 24px;
  color: #fff;
  background:
    radial-gradient(circle at 15% 25%, rgba(255,201,60,0.28), transparent 45%),
    radial-gradient(circle at 85% 80%, rgba(56,224,176,0.25), transparent 45%),
    var(--grape);
  border: 2px solid var(--line);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content:"";
  position:absolute; inset: 12px;
  border: 2px dashed rgba(255,255,255,0.35);
  border-radius: 16px;
  pointer-events:none;
}
.cta-banner h2 {
  color:#fff;
  font-size: clamp(1.6rem,3.4vw,2.4rem);
  font-weight: 900;
  letter-spacing:-0.03em;
  margin-bottom: 14px;
  position: relative; z-index:2;
}
.cta-banner p { position: relative; z-index:2; opacity: 0.9; margin-bottom: 26px; }
.cta-banner .btn-primary {
  background: var(--honey);
  color: var(--ink);
  box-shadow: 4px 4px 0 rgba(29,20,40,0.9);
  position: relative; z-index:2;
}
.cta-banner .btn-primary:hover {
  background: #fff;
  box-shadow: 6px 6px 0 rgba(29,20,40,0.9);
}

/* ============ 页脚 ============ */
.site-footer {
  padding: 64px 0 30px;
  background: var(--ink);
  color: #f3ece4;
  border-top: 2px solid var(--line);
  position: relative;
}
.site-footer::before {
  content:"";
  position:absolute; top:0; left:0; right:0; height:5px;
  background: repeating-linear-gradient(90deg, var(--coral) 0 24px, var(--honey) 24px 48px, var(--mint) 48px 72px, var(--grape) 72px 96px);
}
.footer-grid {
  display:grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 44px;
}
.footer-brand h3 {
  font-size: 1.3rem; font-weight: 900; margin-bottom: 14px;
  color: #fff; letter-spacing:-0.02em;
}
.footer-brand p { color: rgba(243,236,228,0.65); font-size: 0.94rem; max-width: 340px; }
.footer-col h4 {
  font-size: 0.82rem; font-weight: 800;
  letter-spacing: 0.14em; text-transform: uppercase;
  margin-bottom: 16px; color: var(--honey);
}
.footer-col ul { list-style: none; }
.footer-col ul li { padding: 6px 0; }
.footer-col a {
  color: rgba(243,236,228,0.75);
  text-decoration: none;
  font-size: 0.92rem;
  transition: 0.2s;
}
.footer-col a:hover { color: var(--coral); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(243,236,228,0.16);
  margin-top: 44px;
  padding-top: 22px;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(243,236,228,0.55);
}

/* ============ 工具类 ============ */
.text-accent { color: var(--coral); font-weight: 800; }
.text-center { text-align: center; }
.seo-description {
  max-width: 640px;
  margin: 0 auto 48px;
  color: var(--ink-soft);
  font-size: 1.02rem;
}
.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; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .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:68px; left:0; width:100%;
    background: var(--paper);
    padding: 20px;
    gap: 8px;
    border-bottom: 2px solid var(--line);
    box-shadow: 0 8px 0 rgba(29,20,40,0.08);
  }
  .main-nav.open a { width: 100%; text-align: left; }
  .hero { padding: 120px 0 60px; }
  .hero::after { font-size: 4.5rem; }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
  .cta-banner { padding: 48px 22px; }
}