/* ============================================================
   真相檔案 TRUTH FILE
   
   品牌：网红黑料 - 黑料yandex - 让网红黑料止于真相
   域名：wanghongheiliao.net.cn
   
   设计概念：媒体档案美学 / Truth Archive
   配色：暖纸底 + 砖红印章 + 墨绿结构 + 芥末点缀
   排版：极端字重对比 + 编号系统 + 纸张肌理
   ============================================================ */

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

:root {
  --paper: #F7F5EF;
  --paper-deep: #EBE7DC;
  --card-bg: #FFFEFB;
  --brick: #C05337;
  --brick-dark: #9E3F29;
  --parsley: #3D5A4D;
  --parsley-deep: #2B4237;
  --mustard: #D99E3E;
  --ink: #262B26;
  --ink-soft: #4E564E;
  --ink-muted: #7C8579;
  --line: #DDD6CA;
  --line-strong: #C0B5A4;
  --shadow-sm: 0 2px 8px rgba(38,43,38,0.04);
  --shadow-md: 0 12px 32px rgba(38,43,38,0.07);
  --shadow-toggle: 0 20px 48px rgba(38,43,38,0.09);
  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 18px;
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background-color: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
  line-height: 1.6;
  background-image: radial-gradient(rgba(38,43,38,0.05) 1px, transparent 1px);
  background-size: 26px 26px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--brick);
  color: #F7F5EF;
}

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--paper); }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 6px; border: 2px solid var(--paper); }
::-webkit-scrollbar-thumb:hover { background: var(--brick); }

/* ============ 核心布局 ============ */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}

.section {
  padding: 96px 0;
  position: relative;
}

.section:nth-child(even) {
  background: var(--paper-deep);
  box-shadow: inset 0 1px 0 var(--line);
}

.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--brick), transparent);
  opacity: 0.3;
}

/* ============ 导航 ============ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(247,245,239,0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.site-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--brick) 0%, var(--brick) 120px, var(--mustard) 120px, var(--mustard) 220px, var(--parsley) 220px, var(--parsley) 360px, transparent 360px);
  z-index: 2;
}

.site-header::after {
  content: 'TRUTH * INDEX * 0001';
  position: absolute;
  top: 5px;
  right: 18px;
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--ink-muted);
  z-index: 2;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  font-size: 1.3rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.03em;
  position: relative;
  flex-shrink: 0;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  background: var(--brick);
  color: #F7F5EF;
  font-weight: 900;
  border: 2px solid var(--brick-dark);
  box-shadow: 3px 3px 0 rgba(38,43,38,0.18);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}

.logo-icon::after {
  content: '';
  position: absolute;
  inset: -4px;
  border: 1px dashed rgba(192,83,55,0.4);
  border-radius: 12px;
  pointer-events: none;
}

.logo:hover .logo-icon {
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0 rgba(38,43,38,0.15);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color 0.2s ease;
  letter-spacing: 0.02em;
  position: relative;
  padding: 6px 2px;
}

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--brick);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s cubic-bezier(0.65, 0, 0.35, 1);
}

.main-nav a:not(.nav-cta):hover {
  color: var(--ink);
}

.main-nav a:not(.nav-cta):hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  padding: 10px 24px;
  border-radius: 999px;
  color: #F7F5EF !important;
  font-weight: 700;
  background: var(--brick);
  box-shadow: 0 3px 12px rgba(192,83,55,0.3);
  transition: all 0.3s ease !important;
  letter-spacing: 0.04em;
}

.nav-cta::before {
  content: '● ';
  font-size: 0.6em;
  vertical-align: middle;
}

.nav-cta:hover {
  background: var(--brick-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(192,83,55,0.4);
}

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

.menu-toggle {
  display: none;
  background: var(--card-bg);
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius-sm);
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--ink);
  font-size: 1.3rem;
  transition: all 0.25s ease;
}

.menu-toggle:hover {
  border-color: var(--brick);
  color: var(--brick);
}

/* ============ 首页 Hero ============ */

.hero {
  min-height: 94vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 10%;
  right: -5%;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217,158,62,0.14), transparent 65%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -8%;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(61,90,77,0.08), transparent 60%);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.hero-content {
  max-width: 680px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 6px 16px;
  border-radius: 0;
  margin-bottom: 24px;
  background: transparent;
  border: 1.5px solid var(--brick);
  color: var(--brick);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  position: relative;
}

.hero-eyebrow::before {
  content: '✔';
  font-size: 0.7rem;
  font-weight: 900;
}

.hero-eyebrow::after {
  content: '';
  position: absolute;
  top: -4px;
  right: -8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--mustard);
  border: 1.5px solid var(--paper);
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  line-height: 1.08;
  margin-bottom: 22px;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--ink);
}

.hero h1 .outline {
  -webkit-text-stroke: 1.5px var(--parsley);
  color: transparent;
  font-weight: 900;
}

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

.hero h1 .highlight::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 0;
  width: 100%;
  height: 10px;
  background: url("data:image/svg+xml,%3Csvg width='24' height='8' viewBox='0 0 24 8' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 5h24' stroke='%23D99E3E' stroke-width='4' stroke-linecap='round' fill='none'/%3E%3C/svg%3E") repeat-x left center;
  background-size: 24px 8px;
  z-index: -1;
  opacity: 0.6;
}

.hero p {
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: 540px;
  margin-bottom: 32px;
  line-height: 1.8;
  font-weight: 400;
}

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

.hero-image {
  border-radius: 0;
  overflow: hidden;
  position: relative;
  z-index: 2;
  border: 2px solid var(--ink);
  background: var(--card-bg);
  transform: rotate(1.5deg);
  box-shadow: 12px 12px 0 rgba(61,90,77,0.25);
  transition: transform 0.4s cubic-bezier(0.65, 0, 0.35, 1), box-shadow 0.4s ease;
}

.hero-image::before {
  content: 'PHOTO//EVIDENCE//NO.001';
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: rgba(255,255,255,0.7);
  background: rgba(38,43,38,0.7);
  padding: 5px 14px;
  border-radius: 2px;
  white-space: nowrap;
  z-index: 2;
  backdrop-filter: blur(4px);
}

.hero-image:hover {
  transform: rotate(0deg) translateY(-6px);
  box-shadow: 18px 18px 0 rgba(192,83,55,0.25);
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  filter: sepia(0.12) saturate(0.95) contrast(1.05);
}

/* 验证圆徽章 */
.hero-image::after {
  content: '真';
  position: absolute;
  top: -18px;
  right: -18px;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--brick);
  color: #F7F5EF;
  font-size: 1.5rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--paper);
  box-shadow: 0 4px 16px rgba(192,83,55,0.35);
  z-index: 5;
  animation: stampPulse 3s ease-in-out infinite;
}

@keyframes stampPulse {
  0%, 100% { transform: scale(1) rotate(-8deg); }
  50% { transform: scale(1.04) rotate(-6deg); }
}

/* ============ 按钮 ============ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.65, 0, 0.35, 1);
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--brick);
  color: #F7F5EF;
  border: 2px solid var(--brick-dark);
  box-shadow: 0 4px 0 var(--brick-dark), 0 10px 24px rgba(192,83,55,0.25);
}

.btn-primary:hover {
  transform: translateY(2px);
  box-shadow: 0 2px 0 var(--brick-dark), 0 6px 16px rgba(192,83,55,0.25);
  background: var(--brick-dark);
}

.btn-primary:active {
  transform: translateY(4px);
  box-shadow: 0 0 0 var(--brick-dark);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--parsley);
  color: var(--parsley);
  box-shadow: 0 4px 0 rgba(61,90,77,0.25);
}

.btn-outline:hover {
  background: var(--parsley);
  border-color: var(--parsley);
  color: #F7F5EF;
  transform: translateY(2px);
  box-shadow: 0 2px 0 rgba(61,90,77,0.25);
}

/* ============ 标签/标题 ============ */

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  margin-bottom: 16px;
  color: var(--brick);
  text-transform: uppercase;
  background: rgba(192,83,55,0.07);
  padding: 5px 14px;
  border-left: 3px solid var(--brick);
}

.section-label::before {
  content: attr(data-file);
  font-weight: 900;
  background: var(--brick);
  color: var(--paper);
  padding: 1px 6px;
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  border-radius: 2px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  line-height: 1.15;
  color: var(--ink);
}

.section-desc {
  max-width: 600px;
  color: var(--ink-soft);
  margin-bottom: 48px;
  font-size: 1.02rem;
  line-height: 1.8;
  border-left: 3px solid var(--line-strong);
  padding-left: 20px;
}

/* ============ 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;
  border: 1.5px solid var(--line-strong);
  transition: all 0.4s cubic-bezier(0.65, 0, 0.35, 1);
  position: relative;
  background: var(--card-bg);
  box-shadow: 4px 4px 0 rgba(38,43,38,0.08);
}

.category-card::before {
  content: 'FILE ' attr(data-index);
  position: absolute;
  top: 10px;
  right: 12px;
  font-size: 0.55rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--ink-muted);
  background: var(--paper-deep);
  padding: 3px 8px;
  border-radius: 2px;
}

.category-card::after {
  content: '';
  position: absolute;
  top: -1px;
  left: 20px;
  width: 40px;
  height: 3px;
  background: var(--parsley);
  transition: width 0.4s ease;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: 8px 8px 0 rgba(192,83,55,0.2);
  border-color: var(--brick);
}

.category-card:hover::after {
  width: 80px;
  background: var(--brick);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: var(--paper-deep);
  border: 1px solid var(--line);
  color: var(--parsley);
  transition: all 0.3s ease;
}

.category-card:hover .card-icon {
  background: var(--parsley);
  border-color: var(--parsley);
  color: #F7F5EF;
  transform: rotate(-5deg);
}

.category-card h3 {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.category-card p {
  font-size: 0.88rem;
  color: var(--ink-muted);
  line-height: 1.6;
  margin-bottom: 14px;
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--brick);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.02em;
  transition: gap 0.2s ease;
}

.card-link::after {
  content: '→';
  font-size: 1rem;
  transition: transform 0.2s ease;
}

.card-link:hover {
  gap: 12px;
}

.card-link:hover::after {
  transform: translateX(2px);
}

/* ============ 特性块 ============ */

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

.feature-image {
  border-radius: 0;
  overflow: hidden;
  position: relative;
  border: 2px solid var(--ink);
  box-shadow: 10px 10px 0 rgba(61,90,77,0.2);
  background: var(--card-bg);
}

.feature-image::before {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px dashed rgba(255,255,255,0.4);
  z-index: 1;
  pointer-events: none;
}

.feature-image::after {
  content: 'VERIFIED \2605\2605\2605\2605\2605';
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  color: #F7F5EF;
  background: rgba(38,43,38,0.75);
  padding: 5px 16px;
  white-space: nowrap;
  z-index: 2;
  backdrop-filter: blur(4px);
}

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

.feature-text {
  padding: 0;
}

.feature-text .section-label {
  margin-bottom: 12px;
}

.feature-text h3 {
  font-size: 1.8rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.3;
}

.feature-text p {
  color: var(--ink-soft);
  line-height: 1.8;
  margin-bottom: 20px;
}

.feature-list {
  list-style: none;
  margin-top: 24px;
}

.feature-list li {
  padding: 12px 0;
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.92rem;
  color: var(--ink-soft);
  border-bottom: 1px dashed var(--line);
  transition: padding-left 0.25s ease;
}

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

.feature-list li:hover {
  padding-left: 8px;
  color: var(--ink);
}

.feature-list li::before {
  content: '✓';
  font-weight: 900;
  color: var(--parsley);
  background: rgba(61,90,77,0.12);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  flex-shrink: 0;
}

/* ============ 数据条 ============ */

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
  position: relative;
}

.stats-bar::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 6%;
  right: 6%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}

.stat-item {
  padding: 36px 24px;
  border-radius: 0;
  border: 1.5px solid var(--line-strong);
  background: var(--card-bg);
  position: relative;
  transition: all 0.35s ease;
  box-shadow: 0 2px 0 transparent;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  background: var(--mustard);
  transition: width 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-6px);
  box-shadow: 6px 6px 0 rgba(192,83,55,0.15);
  border-color: var(--brick);
}

.stat-item:hover::before {
  width: 80px;
  background: var(--brick);
}

.stat-number {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.stat-number::after {
  content: '§';
  font-size: 0.5em;
  color: var(--brick);
  vertical-align: super;
  margin-left: 2px;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--ink-muted);
  margin-top: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}

/* ============ 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: 1.5px solid var(--line-strong);
  transition: all 0.4s cubic-bezier(0.65, 0, 0.35, 1);
  background: var(--card-bg);
  position: relative;
}

.content-wall-item::before {
  content: attr(data-tag);
  position: absolute;
  top: 14px;
  left: -28px;
  background: var(--parsley);
  color: var(--paper);
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  padding: 4px 32px;
  transform: rotate(-45deg);
  z-index: 3;
  box-shadow: 0 2px 6px rgba(38,43,38,0.2);
}

.content-wall-item::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid transparent;
  transition: border-color 0.3s ease;
  pointer-events: none;
  z-index: 2;
}

.content-wall-item:hover {
  transform: translateY(-8px);
  box-shadow: 8px 8px 0 rgba(61,90,77,0.18);
  border-color: var(--parsley);
}

.content-wall-item:hover::after {
  border-color: rgba(192,83,55,0.5);
  inset: 6px;
}

.content-wall-item img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  display: block;
  filter: grayscale(0.15) sepia(0.1);
  transition: all 0.5s cubic-bezier(0.65, 0, 0.35, 1);
}

.content-wall-item:hover img {
  filter: grayscale(0) sepia(0);
  transform: scale(1.04);
}

.content-wall-body {
  padding: 24px;
  position: relative;
}

.content-wall-body::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 24px;
  right: 24px;
  height: 1px;
  background: linear-gradient(90deg, var(--line), transparent);
}

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

.content-wall-body p {
  font-size: 0.86rem;
  color: var(--ink-muted);
  line-height: 1.65;
}

/* ============ FAQ ============ */

.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  border: 1.5px solid var(--line-strong);
  border-radius: 0;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: var(--card-bg);
  transition: all 0.3s ease;
  position: relative;
}

.faq-item::before {
  content: attr(data-num);
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 900;
  color: var(--card-bg);
  background: var(--parsley);
  transition: background 0.3s ease;
  z-index: 1;
}

.faq-item:hover {
  border-color: var(--brick);
  box-shadow: 4px 4px 0 rgba(192,83,55,0.12);
  transform: translate(-2px, -2px);
}

.faq-item .faq-question {
  padding: 20px 48px 20px 52px;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--ink);
  line-height: 1.5;
  position: relative;
  transition: color 0.2s;
}

.faq-item .faq-question::after {
  content: '+';
  position: absolute;
  right: 18px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--brick);
  border: 1.5px solid var(--line-strong);
  border-radius: 50%;
  font-weight: 400;
  transition: all 0.3s ease;
  top: 50%;
  transform: translateY(-50%);
}

.faq-item.open {
  border-color: var(--brick);
}

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

.faq-item.open .faq-question::after {
  content: '−';
  background: var(--brick);
  color: #F7F5EF;
  border-color: var(--brick);
  transform: translateY(-50%) rotate(180deg);
}

.faq-item .faq-answer {
  padding: 0 24px 22px 52px;
  display: none;
  color: var(--ink-soft);
  line-height: 1.8;
  font-size: 0.92rem;
  border-top: 1px dotted var(--line);
  padding-top: 14px;
  background: rgba(247,245,239,0.4);
}

.faq-item.open .faq-answer {
  display: block;
}

.faq-item.open::before {
  background: var(--brick);
}

/* ============ CTA 横幅 ============ */

.cta-banner {
  padding: 72px 56px;
  text-align: center;
  border-radius: 0;
  color: #F7F5EF;
  background: var(--parsley-deep);
  border: 2px solid var(--ink);
  position: relative;
  overflow: hidden;
  box-shadow: 10px 10px 0 rgba(192,83,55,0.4);
}

.cta-banner::before {
  content: '✻';
  position: absolute;
  top: -30px;
  left: -20px;
  font-size: 18rem;
  color: rgba(217,158,62,0.08);
  pointer-events: none;
  line-height: 1;
}

.cta-banner::after {
  content: 'VERIFIED TRUE';
  position: absolute;
  top: 20px;
  right: -10px;
  font-size: 0.6rem;
  font-weight: 900;
  letter-spacing: 0.35em;
  color: rgba(247,245,239,0.3);
  transform: rotate(90deg);
  pointer-events: none;
}

.cta-banner h2 {
  color: #F7F5EF;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}

.cta-banner h2::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--mustard);
  margin: 16px auto 0;
}

.cta-banner p {
  color: rgba(247,245,239,0.7);
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
  font-size: 0.98rem;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary {
  background: var(--mustard);
  color: var(--ink);
  border-color: var(--parsley);
  box-shadow: 0 4px 0 var(--parsley);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  background: #F0B753;
  color: var(--ink);
  box-shadow: 0 2px 0 var(--parsley);
}

/* 印章纹装饰 */
.cta-banner .btn-primary::after {
  content: '◟';
  font-size: 1rem;
  margin-left: 8px;
}

/* ============ 页脚 ============ */

.site-footer {
  padding: 72px 0 28px;
  border-top: 3px solid var(--ink);
  background: var(--paper-deep);
  margin-top: 40px;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 180px;
  height: 3px;
  background: linear-gradient(90deg, var(--brick) 0%, var(--mustard) 100%);
}

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

.footer-brand h3 {
  font-size: 1.2rem;
  font-weight: 900;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.footer-brand p {
  color: var(--ink-muted);
  font-size: 0.86rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-brand .footer-seal {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--brick);
  border: 1.5px dashed rgba(192,83,55,0.4);
  padding: 5px 12px;
  border-radius: 2px;
}

.footer-col h4 {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 16px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 3px;
  background: var(--brick);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.85rem;
  transition: all 0.2s ease;
  position: relative;
  padding-left: 0;
}

.footer-col ul li a::before {
  content: '→';
  margin-right: 6px;
  color: var(--line-strong);
  font-size: 0.75rem;
  transition: transform 0.2s ease, color 0.2s ease;
  display: inline-block;
}

.footer-col ul li a:hover {
  color: var(--brick);
  padding-left: 4px;
}

.footer-col ul li a:hover::before {
  transform: translateX(2px);
  color: var(--brick);
}

.footer-bottom {
  border-top: 1px solid var(--line-strong);
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.75rem;
  color: var(--ink-muted);
  letter-spacing: 0.05em;
}

.footer-bottom::before {
  content: '©';
  margin-right: 4px;
}

/* ============ 工具类 ============ */

.text-accent {
  color: var(--brick) !important;
  font-weight: 700;
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  color: var(--ink-soft);
  line-height: 1.8;
  border: none;
  padding: 0;
}

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

/* 额外工具 —— 可视性的小徽章 */
.badge-secure {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(61,90,77,0.1);
  border: 1px solid rgba(61,90,77,0.25);
  color: var(--parsley);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.05em;
}

.badge-secure::before {
  content: '◈';
  font-size: 0.6rem;
}

/* 卡片 hover 光晕 */
@keyframes cardGlow {
  0% { box-shadow: 8px 8px 0 rgba(192,83,55,0.12); }
  50% { box-shadow: 10px 10px 0 rgba(217,158,62,0.2); }
  100% { box-shadow: 8px 8px 0 rgba(192,83,55,0.12); }
}

.category-card:hover {
  animation: cardGlow 2s ease infinite;
}

/* 图片滚动时的轻微视差效果 */
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.hero-image img:hover {
  animation: floatY 3s ease-in-out infinite;
}

/* 焦点可见性——键盘用户 */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--brick);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ============ 响应式 ============ */

@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
    padding-top: 32px;
  }

  .hero-image {
    max-width: 85%;
    margin: 0 auto;
  }

  .feature-block {
    gap: 40px;
  }

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

@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stats-bar::before {
    display: none;
  }

  .stat-item {
    padding: 28px 16px;
  }

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

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px;
    left: 0;
    width: 100%;
    background: var(--card-bg);
    padding: 24px;
    gap: 14px;
    border-bottom: 3px solid var(--brick);
    box-shadow: 0 24px 48px rgba(38,43,38,0.12);
    z-index: 999;
  }

  .main-nav.open a {
    padding: 12px 8px;
    font-size: 1.05rem;
    border-bottom: 1px solid var(--line);
    width: 100%;
  }

  .main-nav.open a:last-child {
    border-bottom: none;
  }

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

  .section {
    padding: 64px 0;
  }

  .hero {
    min-height: auto;
    padding: 100px 0 56px;
  }

  .hero .container {
    gap: 40px;
  }

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

  .hero p {
    font-size: 1rem;
  }

  .hero-image {
    max-width: 100%;
  }

  .hero-image::after {
    width: 52px;
    height: 52px;
    font-size: 1.2rem;
    top: -12px;
    right: -8px;
  }

  .cta-banner {
    padding: 48px 28px;
  }
}

@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;
  }

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

  .header-inner {
    height: 60px;
    padding: 0 16px;
  }

  .logo {
    font-size: 1.05rem;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 0.9rem;
  }

  .site-header::after {
    display: none;
  }

  .main-nav.open {
    top: 60px;
  }

  .section {
    padding: 48px 0;
  }

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

  .feature-block {
    gap: 28px;
  }

  .feature-text h3 {
    font-size: 1.4rem;
  }

  .cta-banner {
    padding: 40px 20px;
    box-shadow: 6px 6px 0 rgba(192,83,55,0.4);
  }

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

  .footer-grid {
    gap: 28px;
  }

  .stat-number {
    font-size: 1.8rem;
  }
}

/* 打印样式 —— 保留档案感 */
@media print {
  .site-header, .hero-buttons, .menu-toggle, .nav-cta, .cta-banner .btn-primary {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
    background-image: none;
  }

  .section {
    padding: 32px 0;
  }
}