```css
/* ============================================================
   黑料网在线观看_黑料网吃瓜 — 暗处真相，在线直击 | heiliaowangzai.net.cn
   Design Language: 解构杂志 × 孟菲斯印章 · Light & Bold
   ============================================================ */

:root {
  --paper: #FAF5EB;
  --paper-light: #FFFDF8;
  --paper-deep: #F1EADA;
  --ink: #1A2F42;
  --accent: #E4573D;
  --gold: #F2B84B;
  --line: #E2DAC8;
}

/* ===== 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;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent);
  color: var(--paper);
}

/* ===== 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-deep);
}

/* ===== 导航 — 固定顶部 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250, 245, 235, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 2px solid var(--ink);
}

.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: 1.25rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: var(--accent);
  color: var(--paper);
  border-radius: 50% 4px 50% 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 900;
  box-shadow: 2px 2px 0px 0px var(--ink);
  transition: transform 0.3s;
}

.logo:hover .logo-icon {
  transform: rotate(12deg) scale(1.05);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--ink);
  position: relative;
  padding: 4px 0;
  transition: color 0.3s;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s cubic-bezier(0.2, 0.9, 0.3, 1);
}

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

.main-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  padding: 10px 24px !important;
  background: var(--ink);
  color: var(--paper) !important;
  font-weight: 800;
  border-radius: 0;
  box-shadow: 3px 3px 0px 0px var(--accent);
  transition: all 0.3s;
}

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

.nav-cta:hover {
  background: var(--accent);
  color: var(--paper) !important;
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0px 0px var(--ink);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 2px solid var(--ink);
  border-radius: 0;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--ink);
  transition: all 0.2s;
}

.menu-toggle:hover {
  background: var(--ink);
  color: var(--paper);
}

/* ===== 首页 Hero ===== */
.hero {
  min-height: 78vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  position: relative;
  overflow: hidden;
  background: var(--paper);
}

.hero::before {
  content: '';
  position: absolute;
  width: 480px;
  height: 480px;
  border: 3px solid var(--accent);
  border-radius: 50%;
  top: 20%;
  right: -80px;
  opacity: 0.2;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  width: 320px;
  height: 320px;
  background: var(--gold);
  border-radius: 50%;
  bottom: -60px;
  right: 20%;
  opacity: 0.15;
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
  width: 100%;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 720px;
}

.hero-eyebrow {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 0;
  margin-bottom: 20px;
  clip-path: polygon(0 0, 100% 0, 94% 100%, 6% 100%);
}

.hero h1 {
  font-size: 3.6rem;
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -2px;
  margin-bottom: 24px;
  position: relative;
}

.hero h1 .hero-accent {
  color: var(--accent);
  position: relative;
  display: inline-block;
}

.hero h1 .hero-accent::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 10px;
  background: var(--gold);
  z-index: -1;
  transform: skewX(-10deg);
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.75;
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.7;
}

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

.hero-image {
  position: relative;
  background: var(--gold);
  padding: 14px;
  border: 3px solid var(--ink);
  border-radius: 0;
  box-shadow: 12px 12px 0px 0px var(--ink);
  transform: rotate(2deg);
  transition: transform 0.3s ease;
}

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

.hero-image::before {
  content: '';
  position: absolute;
  top: -12px;
  left: -12px;
  width: 28px;
  height: 28px;
  background: var(--accent);
  clip-path: polygon(0 0, 100% 0, 0 100%);
  z-index: 2;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 0;
  filter: saturate(0.95) contrast(1.05);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 0;
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.2, 0.9, 0.3, 1);
}

.btn-primary {
  background: var(--accent);
  color: var(--paper);
  box-shadow: 4px 4px 0px 0px var(--ink);
}

.btn-primary:hover {
  background: #C64530;
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px 0px var(--ink);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--ink);
  color: var(--ink);
  box-shadow: 4px 4px 0px 0px transparent;
}

.btn-outline:hover {
  background: var(--ink);
  color: var(--paper);
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0px 0px var(--accent);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

.btn .btn-arrow {
  display: inline-block;
  transition: transform 0.2s;
}

/* ===== 标签 / 标题 ===== */
.section-label {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 5px 16px;
  margin-bottom: 14px;
  clip-path: polygon(0 0, 100% 0, 94% 100%, 6% 100%);
}

.section-title {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
  line-height: 1.2;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 48px;
  font-size: 1rem;
  line-height: 1.7;
}

/* ===== 卡片网格 ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 32px;
}

.category-card {
  background: var(--paper-light);
  border: 2px solid var(--ink);
  border-radius: 0;
  padding: 32px 28px;
  position: relative;
  transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
  box-shadow: 8px 8px 0px 0px var(--ink);
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  background: var(--gold);
  clip-path: polygon(0 0, 100% 0, 0 100%);
  transition: all 0.3s;
}

.category-card:nth-child(2)::before {
  background: var(--accent);
}

.category-card:nth-child(3)::before {
  background: var(--ink);
}

.category-card:hover {
  transform: translate(3px, 3px);
  box-shadow: 3px 3px 0px 0px var(--ink);
}

.category-card:hover::before {
  width: 28px;
  height: 28px;
}

.card-icon {
  width: 56px;
  height: 56px;
  background: var(--gold);
  border: 2px solid var(--ink);
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
  transform: rotate(-3deg);
  transition: transform 0.3s;
}

.category-card:hover .card-icon {
  transform: rotate(0deg) scale(1.05);
}

.card-link {
  font-weight: 800;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
  letter-spacing: 0.5px;
}

.card-link::after {
  content: '→';
  display: inline-block;
  transition: transform 0.2s;
}

.card-link:hover::after {
  transform: translateX(6px);
}

/* ===== 特性块 ===== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  background: var(--paper-light);
  border: 2px solid var(--ink);
  border-radius: 0;
  padding: 48px;
  box-shadow: 10px 10px 0px 0px rgba(26, 47, 66, 0.12);
}

.feature-image {
  border: 3px solid var(--ink);
  border-radius: 0;
  overflow: hidden;
  box-shadow: 8px 8px 0px 0px var(--gold);
  background: var(--paper-deep);
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.feature-text {
  padding: 8px 0;
}

.feature-text h3,
.feature-text .section-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}

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

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-weight: 500;
  border-bottom: 1px dashed var(--line);
  line-height: 1.5;
}

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

.feature-list li::before {
  content: '→';
  font-weight: 900;
  color: var(--accent);
  flex-shrink: 0;
}

/* ===== 数据条 ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item {
  background: var(--paper-light);
  border: 2px solid var(--ink);
  border-radius: 0;
  padding: 36px 20px;
  position: relative;
  transition: all 0.3s;
  box-shadow: 6px 6px 0px 0px transparent;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: var(--accent);
  transition: height 0.3s;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 6px 6px 0px 0px rgba(26, 47, 66, 0.15);
}

.stat-item:hover::before {
  height: 10px;
}

.stat-number {
  font-size: 3.2rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1.1;
  letter-spacing: -2px;
}

.stat-number::after {
  content: '+';
  font-size: 0.6em;
  vertical-align: top;
  color: var(--gold);
  font-weight: 900;
}

.stat-label {
  font-size: 0.82rem;
  opacity: 0.65;
  margin-top: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ===== 内容墙 ===== */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 32px;
}

.content-wall-item {
  background: var(--paper-light);
  border: 2px solid var(--line);
  border-radius: 0;
  overflow: hidden;
  position: relative;
  transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}

.content-wall-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 42px;
  height: 4px;
  background: var(--accent);
  transition: width 0.3s;
}

.content-wall-item:hover {
  transform: translateY(-4px);
  border-color: var(--ink);
  box-shadow: 8px 8px 0px 0px rgba(26, 47, 66, 0.12);
}

.content-wall-item:hover::after {
  width: 100%;
}

.content-wall-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  border-bottom: 2px solid var(--line);
}

.content-wall-body {
  padding: 20px 22px 24px;
}

.content-wall-body h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 8px;
  line-height: 1.4;
}

.content-wall-body p {
  font-size: 0.9rem;
  opacity: 0.7;
  line-height: 1.6;
}

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

.faq-item {
  background: var(--paper-light);
  border: 2px solid var(--line);
  border-radius: 0;
  margin-bottom: 12px;
  cursor: pointer;
  transition: all 0.3s;
}

.faq-item:hover {
  border-color: var(--ink);
}

.faq-item.open {
  border-color: var(--ink);
  box-shadow: 6px 6px 0px 0px rgba(26, 47, 66, 0.12);
}

.faq-question {
  padding: 20px 24px;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color 0.2s;
}

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

.faq-question::after {
  content: '+';
  font-size: 1.6rem;
  font-weight: 400;
  line-height: 1;
  color: var(--accent);
  display: inline-block;
  transition: transform 0.3s ease;
}

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

.faq-answer {
  padding: 0 24px 20px;
  display: none;
  opacity: 0.75;
  line-height: 1.8;
  border-top: 1px dashed var(--line);
  padding-top: 14px;
}

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

@keyframes faqFadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 0.75;
    transform: translateY(0);
  }
}

/* ===== CTA 横幅 ===== */
.cta-banner {
  background: var(--accent);
  padding: 64px 48px;
  text-align: center;
  border-radius: 0;
  color: var(--paper);
  position: relative;
  overflow: hidden;
  border: 3px solid var(--ink);
  box-shadow: 8px 8px 0px 0px var(--ink);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -40px;
  left: -40px;
  width: 140px;
  height: 140px;
  background: var(--gold);
  border-radius: 50%;
  opacity: 0.25;
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -60px;
  right: -20px;
  width: 200px;
  height: 200px;
  border: 5px solid var(--paper);
  border-radius: 50%;
  opacity: 0.2;
  pointer-events: none;
}

.cta-banner h2 {
  color: var(--paper);
  font-size: 2.4rem;
  font-weight: 900;
  margin-bottom: 14px;
  position: relative;
  z-index: 2;
}

.cta-banner p {
  color: var(--paper);
  opacity: 0.92;
  max-width: 480px;
  margin: 0 auto 32px;
  position: relative;
  z-index: 2;
  font-size: 1.05rem;
  line-height: 1.6;
}

.cta-banner .btn-primary {
  background: var(--gold);
  color: var(--ink);
  border-radius: 0;
  box-shadow: 4px 4px 0px 0px var(--ink);
  position: relative;
  z-index: 2;
}

.cta-banner .btn-primary:hover {
  background: #F7C458;
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px 0px var(--ink);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--paper);
  padding: 64px 0 28px;
  border-top: 3px solid var(--ink);
  position: relative;
}

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

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

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

.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.7;
  max-width: 260px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 18px;
  color: var(--accent);
}

.footer-col a {
  display: block;
  padding: 5px 0;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.2s;
  border-bottom: 1px solid transparent;
}

.footer-col a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid var(--line);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.6;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
}

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

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.75;
  text-align: center;
  line-height: 1.7;
}

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

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

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .hero {
    padding-top: 72px;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero h1 {
    font-size: 2.4rem;
  }

  .hero-image {
    max-width: 480px;
  }

  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 32px;
  }

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

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

  .main-nav {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--paper);
    padding: 24px;
    box-shadow: 0 8px 24px rgba(26, 47, 66, 0.1);
    border-bottom: 2px solid var(--ink);
    gap: 16px;
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 12px 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--line);
  }

  .main-nav a::after {
    display: none;
  }

  .nav-cta {
    text-align: center;
    margin-top: 8px;
  }

  .menu-toggle {
    display: flex;
  }

  .cta-banner {
    padding: 48px 32px;
  }

  .cta-banner h2 {
    font-size: 1.8rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@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;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .cta-banner {
    padding: 40px 24px;
  }

  .cta-banner h2 {
    font-size: 1.5rem;
  }

  .feature-block {
    padding: 24px;
  }

  .stat-number {
    font-size: 2.4rem;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}