/* ==========================================================
   hlw黑料网站 · 暗网黑料 · 深挖黑料，还原真相
   设计系统：「证据档案 / 曝光编辑部」纸感风格
   ----------------------------------------------------------
   主色：#C02A26 曝光红
   底色：#FAF7F2 档案纸
   强调：#D49E2D 线索黄
   暗色：#241C1C 铅字黑
   ========================================================== */

/* ===== 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: #FAF7F2;
  color: #241C1C;
  line-height: 1.75;
  font-size: 1rem;
}

/* 文本选项 */
::selection { background: #C02A26; color: #FAF7F2; }

img { max-width: 100%; display: block; }

h1, h2, h3, h4, h5, h6 { font-weight: 900; line-height: 1.25; color: #241C1C; }

a { color: inherit; }

/* 纸张噪点纹理 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  background-image: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="n"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.85"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23n)"/%3E%3C/svg%3E');
}

/* 自定义滚动条 */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #F1EBE2; }
::-webkit-scrollbar-thumb { background: #C02A26; border-radius: 0; }

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

.section {
  padding: 80px 0;
  position: relative;
}

/* 每个截面顶部红虚线——「证据切割线」 */
.section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: repeating-linear-gradient(90deg, #C02A26 0px, #C02A26 14px, transparent 14px, transparent 22px);
}

.section:nth-child(even) {
  background: #F1EBE2;
}

/* ===== 导航 — 固定顶部「档案刀版」 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250, 247, 242, 0.93);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 2px solid #241C1C;
  box-shadow: 0 2px 12px rgba(36, 28, 28, 0.05);
}

.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: 1.3rem;
  text-decoration: none;
  color: #241C1C;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: #C02A26;
  color: #FAF7F2;
  font-weight: 900;
  border: 2px solid #241C1C;
  box-shadow: 2px 2px 0 #241C1C;
  transform: rotate(-4deg);
  transition: 0.2s;
}

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

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

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: #241C1C;
  transition: 0.2s;
  letter-spacing: 0.4px;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover {
  color: #C02A26;
  border-bottom-color: #C02A26;
}

.nav-cta {
  padding: 10px 22px;
  border-radius: 0;
  color: #FAF7F2 !important;
  font-weight: 700!important;
  background: #C02A26;
  border: 2px solid #241C1C;
  box-shadow: 3px 3px 0 #241C1C;
  transition: 0.15s;
}

.nav-cta:hover {
  color: #FAF7F2 !important;
  box-shadow: 1px 1px 0 #241C1C;
  transform: translate(2px, 2px);
  border-bottom-color: #241C1C;
}

.menu-toggle {
  display: none;
  background: none;
  border: 2px solid #241C1C;
  border-radius: 6px;
  width: 42px;
  height: 42px;
  padding: 0;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  cursor: pointer;
  color: #241C1C;
}

/* ===== 首页Hero ===== */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 140px 0 80px;
  background: #FAF7F2;
}

/* Hero 顶部切割线 */
.hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: repeating-linear-gradient(90deg, #C02A26 0px, #C02A26 14px, transparent 14px, transparent 22px);
}

/* Hero 水印「暗网档案」印章 */
.hero::before {
  content: "暗 网 档 案";
  position: absolute;
  top: 90px;
  right: 40px;
  font-size: 0.95rem;
  font-weight: 900;
  color: #C02A26;
  border: 3px solid #C02A26;
  padding: 8px 18px;
  transform: rotate(10deg);
  opacity: 0.22;
  letter-spacing: 6px;
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

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

/* 标题底部红色标记 */
.hero-content::after {
  content: "";
  position: absolute;
  bottom: -18px;
  left: 0;
  width: 96px;
  height: 5px;
  background: #D49E2D;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 900;
  padding: 6px 16px;
  border-radius: 0;
  margin-bottom: 22px;
  background: #C02A26;
  color: #FAF7F2;
  letter-spacing: 3px;
  text-transform: uppercase;
  border: 2px solid #241C1C;
  box-shadow: 2px 2px 0 rgba(36, 28, 28, 0.6);
}

.hero h1 {
  font-size: 3.2rem;
  line-height: 1.12;
  margin-bottom: 24px;
  color: #241C1C;
  font-weight: 900;
  letter-spacing: -1.5px;
}

.hero h1 strong {
  color: #C02A26;
  border-bottom: 5px solid #D49E2D;
  padding-bottom: 2px;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.72;
  max-width: 560px;
  margin-bottom: 38px;
  color: #241C1C;
}

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

/* Hero 图片 — 证据照片纸感 */
.hero-image {
  border-radius: 0;
  overflow: hidden;
  border: 4px solid #241C1C;
  box-shadow: 10px 10px 0 rgba(36, 28, 28, 0.18);
  transform: rotate(1.2deg);
  background: #F1EBE2;
  position: relative;
}

/* 照片图钉 */
.hero-image::before {
  content: "📌";
  position: absolute;
  top: -12px;
  right: 24px;
  font-size: 1.8rem;
  z-index: 2;
  transform: rotate(15deg);
  filter: drop-shadow(1px 2px 2px rgba(0,0,0,0.3));
}

/* 照片底部的证据标签 */
.hero-image::after {
  content: "证据编号 · HLW-2025-0001";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 8px 14px;
  background: rgba(36, 28, 28, 0.82);
  color: #FAF7F2;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  backdrop-filter: blur(4px);
}

.hero-image img {
  width: 100%;
  height: auto;
  filter: saturate(0.65) contrast(1.08);
  transition: 0.4s;
}

.hero-image:hover img {
  transform: scale(1.02);
  filter: saturate(0.85) contrast(1.05);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 0;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid #241C1C;
  text-decoration: none;
  transition: 0.15s;
  font-size: 0.95rem;
  letter-spacing: 1px;
  line-height: 1.2;
}

.btn-primary {
  color: #FAF7F2;
  background: #C02A26;
  box-shadow: 4px 4px 0 #241C1C;
}

.btn-primary:hover {
  box-shadow: 1px 1px 0 #241C1C;
  transform: translate(3px, 3px);
  background: #A82420;
}

.btn-outline {
  background: transparent;
  border: 2px solid #241C1C;
  color: #241C1C;
  box-shadow: 4px 4px 0 rgba(36, 28, 28, 0.35);
}

.btn-outline:hover {
  background: #241C1C;
  color: #FAF7F2;
  box-shadow: 1px 1px 0 #241C1C;
  transform: translate(3px, 3px);
}

/* ===== 标签 / 标题 ===== */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 3px;
  margin-bottom: 14px;
  color: #C02A26;
  text-transform: uppercase;
  position: relative;
  padding-left: 26px;
}

.section-label::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 3px;
  background: #C02A26;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 16px;
  font-weight: 900;
  color: #241C1C;
  letter-spacing: -0.5px;
  line-height: 1.2;
  position: relative;
}

.section-title::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 34px;
  background: #C02A26;
  margin-right: 14px;
  vertical-align: middle;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 44px;
  font-size: 1rem;
}

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

.category-card {
  border-radius: 0;
  padding: 30px 28px;
  background: #FAF7F2;
  border: 2px solid #241C1C;
  transition: 0.2s;
  position: relative;
  box-shadow: 5px 5px 0 rgba(36, 28, 28, 0.18);
}

/* 卡片右上角证据角标 */
.category-card::after {
  content: "";
  position: absolute;
  top: 10px;
  right: 10px;
  width: 14px;
  height: 14px;
  border-top: 3px solid #C02A26;
  border-right: 3px solid #C02A26;
  opacity: 0.7;
}

.category-card:hover {
  transform: translate(-2px, -3px);
  box-shadow: 9px 9px 0 rgba(36, 28, 28, 0.3);
}

.card-icon {
  width: 50px;
  height: 50px;
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.3rem;
  background: #F1EBE2;
  border: 2px solid #241C1C;
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: #C02A26;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: 0.2s;
}

.card-link::after {
  content: "→";
  font-size: 1rem;
}

.card-link:hover {
  border-bottom-color: #C02A26;
}

/* ===== 特性块 ===== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.feature-image {
  border-radius: 0;
  overflow: hidden;
  border: 3px solid #241C1C;
  box-shadow: 8px 8px 0 rgba(36, 28, 28, 0.15);
  background: #F1EBE2;
}

.feature-image img {
  width: 100%;
  height: auto;
  filter: sepia(15%) contrast(1.05);
}

.feature-text {
  font-size: 1rem;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px dashed rgba(36, 28, 28, 0.35);
  font-weight: 500;
}

.feature-list li::before {
  content: '✓';
  font-weight: 900;
  color: #C02A26;
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* ===== 数据条 ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 34px 24px;
  border-radius: 0;
  border: 2px solid #241C1C;
  background: #FAF7F2;
  box-shadow: 5px 5px 0 rgba(36, 28, 28, 0.18);
  position: relative;
}

.stat-item::before {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 16px;
  height: 16px;
  background: #C02A26;
  border: 2px solid #241C1C;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: #C02A26;
  line-height: 1.1;
  letter-spacing: -1px;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  font-weight: 700;
  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: 0;
  overflow: hidden;
  border: 2px solid #241C1C;
  background: #FAF7F2;
  transition: 0.2s;
  box-shadow: 4px 4px 0 rgba(36, 28, 28, 0.15);
  position: relative;
}

.content-wall-item:hover {
  transform: translate(-2px, -3px);
  box-shadow: 8px 8px 0 rgba(36, 28, 28, 0.3);
}

/* 内容墙编号标签 */
.content-wall-item::after {
  content: "CASE 0" counter(wall-item);
  counter-increment: wall-item;
  position: absolute;
  top: 10px;
  left: 10px;
  background: #C02A26;
  color: #FAF7F2;
  font-size: 0.7rem;
  font-weight: 900;
  padding: 3px 10px;
  letter-spacing: 1px;
  border: 1px solid #241C1C;
  z-index: 2;
}

.content-wall {
  counter-reset: wall-item;
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  border-bottom: 2px solid #241C1C;
  filter: grayscale(40%);
  transition: 0.4s;
}

.content-wall-item:hover img {
  filter: grayscale(0%) saturate(1.1);
}

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

.content-wall-body h4 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 6px;
  line-height: 1.4;
}

.content-wall-body p {
  font-size: 0.88rem;
  opacity: 0.68;
}

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

.faq-item {
  border: 2px solid #241C1C;
  border-radius: 0;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: #FAF7F2;
  box-shadow: 3px 3px 0 rgba(36, 28, 28, 0.15);
  transition: 0.2s;
}

.faq-item:hover {
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0 rgba(36, 28, 28, 0.22);
}

.faq-item.open {
  box-shadow: 5px 5px 0 #C02A26;
}

.faq-item .faq-question {
  padding: 18px 24px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 1rem;
  color: #241C1C;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.6rem;
  font-weight: 900;
  color: #C02A26;
  transition: 0.2s;
  line-height: 1;
}

.faq-item.open .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-item .faq-answer {
  padding: 0 24px 18px;
  display: none;
  opacity: 0.75;
  font-size: 0.95rem;
  border-top: 1px dashed #241C1C;
  padding-top: 14px;
}

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

@keyframes faqReveal {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 0.75; transform: translateY(0); }
}

/* ===== CTA横幅 ===== */
.cta-banner {
  padding: 60px 24px;
  text-align: center;
  border-radius: 0;
  color: #FAF7F2;
  background: linear-gradient(135deg, #C02A26 0%, #A82420 100%);
  border: 3px solid #241C1C;
  box-shadow: 8px 8px 0 rgba(36, 28, 28, 0.28);
  position: relative;
  overflow: hidden;
}

/* CTA 背景的警示条纹 */
.cta-banner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: repeating-linear-gradient(45deg, #D49E2D 0 10px, #241C1C 10px 20px);
}

/* CTA 左上角标签 */
.cta-banner::after {
  content: "!! 紧急情报 !!";
  position: absolute;
  top: 14px;
  left: 14px;
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 2px;
  border: 1px solid rgba(250, 247, 242, 0.5);
  padding: 3px 10px;
  opacity: 0.55;
}

.cta-banner h2 {
  color: #FAF7F2;
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 14px;
  text-shadow: 2px 2px 0 rgba(36, 28, 28, 0.3);
}

.cta-banner .btn-primary {
  background: #FAF7F2;
  color: #C02A26;
  border-color: #241C1C;
  box-shadow: 4px 4px 0 #241C1C;
}

.cta-banner .btn-primary:hover {
  background: #F1EBE2;
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 #241C1C;
}

/* ===== 页脚 ===== */
.site-footer {
  padding: 60px 0 28px;
  background: #F1EBE2;
  color: #241C1C;
  border-top: 3px solid #241C1C;
  position: relative;
}

.site-footer .container {
  /* footer 容器 */
}

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

.footer-brand {
  font-size: 1.3rem;
  font-weight: 900;
  margin-bottom: 10px;
  color: #C02A26;
  letter-spacing: -0.5px;
}

.footer-brand small {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(36, 28, 28, 0.55);
  letter-spacing: 2px;
  margin-top: 4px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 14px;
  color: #C02A26;
  border-bottom: 2px solid #C02A26;
  padding-bottom: 8px;
  display: inline-block;
}

.footer-col a {
  display: block;
  color: rgba(36, 28, 28, 0.75);
  text-decoration: none;
  padding: 5px 0;
  font-size: 0.9rem;
  font-weight: 500;
  transition: 0.2s;
  border-bottom: 1px solid transparent;
}

.footer-col a:hover {
  color: #C02A26;
  padding-left: 6px;
  border-bottom-color: #C02A26;
}

.footer-bottom {
  border-top: 1px solid rgba(36, 28, 28, 0.15);
  margin-top: 44px;
  padding-top: 22px;
  text-align: center;
  font-size: 0.82rem;
  opacity: 0.6;
  letter-spacing: 0.5px;
}

/* ===== 工具类 ===== */
.text-accent {
  color: #C02A26;
  font-weight: 700;
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  font-size: 1rem;
}

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

/* ===== 响应式 ===== */
@media (max-width: 768px) {

  .hero {
    padding: 120px 0 60px;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero h1 {
    font-size: 2.1rem;
  }

  .hero::before {
    display: none;
  }

  .hero-content::after {
    width: 64px;
  }

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

  .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: #FAF7F2;
    padding: 24px;
    gap: 4px;
    border-bottom: 2px solid #241C1C;
    box-shadow: 0 10px 20px rgba(36, 28, 28, 0.08);
  }

  .main-nav.open a {
    padding: 14px 8px;
    border-bottom: 1px solid rgba(36, 28, 28, 0.08);
    font-size: 1rem;
  }

  .main-nav.open .nav-cta {
    margin-top: 12px;
    text-align: center;
  }

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

  .section-title::before {
    height: 26px;
  }

  .section {
    padding: 60px 0;
  }

  .cta-banner h2 {
    font-size: 1.7rem;
  }

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

}

@media (max-width: 480px) {

  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-buttons {
    flex-direction: column;
  }

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

  .hero h1 {
    font-size: 1.7rem;
  }

  .header-inner {
    padding: 0 16px;
  }

  .container {
    padding: 0 18px;
  }

  .section-title {
    font-size: 1.4rem;
  }

  .stat-item {
    padding: 24px 16px;
  }

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

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

  .hero-image::after {
    font-size: 0.65rem;
    letter-spacing: 1px;
  }

}