/* ============================================
   超自然现象调查与都市传说解密档案库 - 主样式表
   视觉风格：监控夜视绿 + 绝密档案牛皮纸
   ============================================ */

/* CSS 变量定义 */
:root {
  --color-primary: #00FF00;
  --color-secondary: #8B0000;
  --color-bg: #111111;
  --color-card: #D2B48C;
  --color-text: #A9A9A9;
  --color-primary-dim: #00cc00;
  --color-primary-glow: rgba(0, 255, 0, 0.3);
  --color-secondary-glow: rgba(139, 0, 0, 0.5);
  --font-typewriter: 'Courier New', 'Noto Sans SC', monospace;
  --font-body: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --font-heading: 'Noto Serif SC', 'SimSun', serif;
  --max-width: 1200px;
  --border-radius: 2px;
  --transition: all 0.3s ease;
}

/* 全局重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
  overflow-x: hidden;
  position: relative;
}

/* VHS 噪点覆盖层 */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.03) 0px,
    rgba(0, 0, 0, 0.03) 1px,
    transparent 1px,
    transparent 2px
  );
  animation: scanline 8s linear infinite;
}

@keyframes scanline {
  0% { transform: translateY(0); }
  100% { transform: translateY(4px); }
}

/* 通用容器 */
.c64ff743c {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 链接样式 */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: #fff;
  text-shadow: 0 0 8px var(--color-primary-glow);
}

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1.4;
  margin-bottom: 1rem;
}

h1 { font-size: 2.2rem; }
h2 { font-size: 1.8rem; }
h3 { font-size: 1.4rem; }

p {
  margin-bottom: 1rem;
}

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

/* ============ 导航栏 ============ */
.c2f83e3a7 {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(17, 17, 17, 0.95);
  border-bottom: 1px solid rgba(0, 255, 0, 0.2);
  backdrop-filter: blur(10px);
}

.c110e533e {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.cfa948967 {
  font-family: var(--font-typewriter);
  font-size: 1.2rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  text-shadow: 0 0 10px var(--color-primary-glow);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cfa948967 img {
  width: 32px;
  height: 32px;
}

.c246124ed {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

.c246124ed a {
  font-family: var(--font-typewriter);
  font-size: 0.85rem;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0.3rem 0;
  border-bottom: 1px solid transparent;
}

.c246124ed a:hover,
.c246124ed a.cc75c12cf {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.c9f52adb2 {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: 0.5rem;
}

.c9f52adb2 span {
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

/* ============ Hero 监控室区域 ============ */
.c402b5786 {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 60px;
}

.c402b5786::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(17, 17, 17, 0.3) 0%,
    rgba(17, 17, 17, 0.7) 70%,
    rgba(17, 17, 17, 1) 100%
  );
  z-index: 2;
}

.ca2124c7d {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.6) contrast(1.2);
  animation: vhsFlicker 4s infinite;
}

@keyframes vhsFlicker {
  0%, 95%, 100% { opacity: 1; filter: brightness(0.6) contrast(1.2); }
  96% { opacity: 0.8; filter: brightness(0.4) contrast(1.5) hue-rotate(10deg); }
  97% { opacity: 1; filter: brightness(0.7) contrast(1.1); }
}

.c4843226c {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 2rem;
}

.c4843226c h1 {
  font-size: 3rem;
  font-family: var(--font-typewriter);
  color: var(--color-primary);
  text-shadow: 0 0 20px var(--color-primary-glow), 0 0 40px var(--color-primary-glow);
  margin-bottom: 1rem;
  animation: typeGlow 2s ease-in-out infinite alternate;
}

@keyframes typeGlow {
  from { text-shadow: 0 0 10px var(--color-primary-glow); }
  to { text-shadow: 0 0 30px var(--color-primary-glow), 0 0 60px var(--color-primary-glow); }
}

.c4843226c p {
  font-family: var(--font-typewriter);
  font-size: 1.1rem;
  color: var(--color-text);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.c6926499c {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: var(--color-secondary);
  color: #fff;
  font-family: var(--font-typewriter);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  border: 2px solid var(--color-secondary);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.c6926499c:hover {
  background: transparent;
  color: var(--color-secondary);
  box-shadow: 0 0 20px var(--color-secondary-glow);
  text-shadow: none;
}

.c6926499c::after {
  content: '[ 绝密 ]';
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  color: var(--color-secondary);
  transition: var(--transition);
}

.c6926499c:hover::after {
  top: -1.2rem;
}

/* 录像带时间戳 */
.cc3ab014f {
  position: absolute;
  bottom: 2rem;
  left: 2rem;
  font-family: var(--font-typewriter);
  font-size: 0.9rem;
  color: var(--color-primary);
  opacity: 0.7;
  z-index: 3;
}

.cc3ab014f::before {
  content: '● REC';
  color: red;
  margin-right: 1rem;
  animation: recBlink 1s infinite;
}

@keyframes recBlink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* ============ 档案卡片区域 ============ */
.c33d2b277 {
  padding: 5rem 0;
  position: relative;
}

.c8a732c37 {
  font-family: var(--font-typewriter);
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
  display: inline-block;
  width: 100%;
}

.c8a732c37::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: var(--color-primary);
  margin: 0.8rem auto 0;
  box-shadow: 0 0 10px var(--color-primary-glow);
}

.c5cbe9b33 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.c5ce3afeb {
  background: var(--color-card);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  position: relative;
  transition: var(--transition);
  transform: rotate(-0.5deg);
  box-shadow: 3px 3px 10px rgba(0, 0, 0, 0.5);
  color: #333;
  overflow: hidden;
}

.c5ce3afeb:nth-child(even) {
  transform: rotate(0.5deg);
}

.c5ce3afeb:hover {
  transform: rotate(0deg) translateY(-5px);
  box-shadow: 5px 5px 20px rgba(0, 0, 0, 0.7);
}

.c5ce3afeb::before {
  content: '绝密';
  position: absolute;
  top: 10px;
  right: -30px;
  background: var(--color-secondary);
  color: #fff;
  padding: 0.2rem 2.5rem;
  font-family: var(--font-typewriter);
  font-size: 0.75rem;
  transform: rotate(45deg);
  letter-spacing: 2px;
}

.c5ce3afeb .c3a6bb175 {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border: 3px solid #8B7355;
  margin-bottom: 1rem;
  filter: sepia(0.3);
}

.c5ce3afeb h3 {
  color: #333;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  font-family: var(--font-typewriter);
}

.c5ce3afeb p {
  font-size: 0.9rem;
  color: #555;
  line-height: 1.6;
}

.c5ce3afeb .c33100143 {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  font-family: var(--font-typewriter);
  border-radius: 2px;
  margin-top: 0.8rem;
}

.cf6ce8d4c {
  background: #2d5a27;
  color: #00ff00;
}

.c7744ebca {
  background: #5a2727;
  color: #ff4444;
}

/* 回形针装饰 */
.c9a79df24 {
  position: absolute;
  top: -8px;
  left: 20px;
  width: 20px;
  height: 40px;
  border: 2px solid #888;
  border-radius: 10px 10px 0 0;
  border-bottom: none;
}

/* ============ EVP 音频区域 ============ */
.c329b119e {
  padding: 5rem 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, #0a0a0a 100%);
}

.cca7c09f5 {
  max-width: 800px;
  margin: 0 auto;
  background: #0a0a0a;
  border: 1px solid rgba(0, 255, 0, 0.3);
  border-radius: var(--border-radius);
  padding: 2rem;
  position: relative;
}

.cca7c09f5 img {
  width: 100%;
  border-radius: var(--border-radius);
  margin-bottom: 1.5rem;
  border: 1px solid rgba(0, 255, 0, 0.2);
}

.ca0b071d9 {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.cf6fc48c7 {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  background: transparent;
  color: var(--color-primary);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.cf6fc48c7:hover {
  background: var(--color-primary);
  color: var(--color-bg);
}

.c66b0bbc2 {
  flex: 1;
  height: 4px;
  background: #333;
  border-radius: 2px;
  position: relative;
  cursor: pointer;
}

.c88f57fb1 {
  height: 100%;
  width: 35%;
  background: var(--color-primary);
  border-radius: 2px;
  box-shadow: 0 0 5px var(--color-primary-glow);
}

.ce78a7d52 {
  font-family: var(--font-typewriter);
  font-size: 0.8rem;
  color: var(--color-primary);
  opacity: 0.7;
}

/* ============ 装备解析区域 ============ */
.c1d9254d2 {
  padding: 5rem 0;
}

.cecdbc9f3 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.c17fb3e2b {
  border: 1px solid rgba(0, 255, 0, 0.2);
  border-radius: var(--border-radius);
}

.cfd048552 {
  list-style: none;
}

.cfd048552 li {
  padding: 1rem 0;
  border-bottom: 1px solid rgba(0, 255, 0, 0.1);
  font-family: var(--font-typewriter);
  font-size: 0.9rem;
  position: relative;
  padding-left: 1.5rem;
}

.cfd048552 li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

/* ============ 辟谣对比区域 ============ */
.ce6c6df94 {
  padding: 5rem 0;
  background: #0a0a0a;
}

.debunk-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.c9a4ac35a {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-bottom: 2rem;
  border: 1px solid rgba(0, 255, 0, 0.1);
}

.ceee68f3b {
  padding: 1.5rem;
  background: rgba(139, 0, 0, 0.1);
  border-right: 2px solid var(--color-secondary);
}

.ceee68f3b h4 {
  color: var(--color-secondary);
  font-family: var(--font-typewriter);
  margin-bottom: 0.5rem;
}

.c634b9845 {
  padding: 1.5rem;
  background: rgba(0, 255, 0, 0.03);
}

.c634b9845 h4 {
  color: var(--color-primary);
  font-family: var(--font-typewriter);
  margin-bottom: 0.5rem;
}

/* ============ 目击者匿名墙 ============ */
.c4be56ba0 {
  padding: 5rem 0;
  overflow: hidden;
}

.c4eb8f23a {
  display: flex;
  gap: 2rem;
  animation: scrollWitness 30s linear infinite;
}

@keyframes scrollWitness {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.c1b256dbc {
  min-width: 300px;
  padding: 1.5rem;
  background: rgba(0, 255, 0, 0.03);
  border: 1px solid rgba(0, 255, 0, 0.1);
  border-left: 3px solid var(--color-primary);
  font-family: var(--font-typewriter);
  font-size: 0.85rem;
  line-height: 1.6;
}

.c1b256dbc .c1bb3dfc7 {
  margin-top: 0.8rem;
  font-size: 0.75rem;
  color: rgba(0, 255, 0, 0.5);
}

/* ============ 页脚 ============ */
.c554f0659 {
  padding: 4rem 0 2rem;
  background: #0a0a0a;
  border-top: 1px solid rgba(0, 255, 0, 0.1);
}

.c0650764c {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.c22d00016 h4 {
  font-family: var(--font-typewriter);
  color: var(--color-primary);
  font-size: 0.9rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.c22d00016 ul {
  list-style: none;
}

.c22d00016 ul li {
  margin-bottom: 0.5rem;
}

.c22d00016 ul li a {
  color: var(--color-text);
  font-size: 0.85rem;
  transition: var(--transition);
}

.c22d00016 ul li a:hover {
  color: var(--color-primary);
  padding-left: 5px;
}

.c3bbbe0a8 {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(0, 255, 0, 0.1);
  font-family: var(--font-typewriter);
  font-size: 0.8rem;
  color: rgba(169, 169, 169, 0.5);
}

/* ============ 面包屑 ============ */
.c212538cb {
  padding: 1rem 0;
  margin-top: 70px;
  font-family: var(--font-typewriter);
  font-size: 0.8rem;
}

.c212538cb a {
  color: var(--color-text);
}

.c212538cb span {
  color: var(--color-primary);
  margin: 0 0.5rem;
}

/* ============ 内页通用样式 ============ */
.cbbd21a5c {
  padding: 6rem 0 3rem;
  text-align: center;
  position: relative;
  background: linear-gradient(180deg, rgba(0, 255, 0, 0.03) 0%, transparent 100%);
}

.cbbd21a5c h1 {
  font-family: var(--font-typewriter);
  font-size: 2.5rem;
}

.cbbd21a5c .c257823a2 {
  max-width: 700px;
  margin: 1rem auto 0;
  font-size: 1rem;
}

.c7010e8f2 {
  padding: 3rem 0 5rem;
}

.c7010e8f2 article {
  max-width: 800px;
  margin: 0 auto;
}

.c7010e8f2 article h2 {
  margin-top: 2.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(0, 255, 0, 0.2);
}

.c7010e8f2 article h3 {
  margin-top: 1.5rem;
}

/* ============ 表单样式 ============ */
.cd9b8dc83 {
  margin-bottom: 1.5rem;
}

.cd9b8dc83 label {
  display: block;
  font-family: var(--font-typewriter);
  font-size: 0.85rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.cd9b8dc83 input,
.cd9b8dc83 textarea,
.cd9b8dc83 select {
  width: 100%;
  padding: 0.8rem 1rem;
  background: rgba(0, 255, 0, 0.03);
  border: 1px solid rgba(0, 255, 0, 0.2);
  color: var(--color-text);
  font-family: var(--font-typewriter);
  font-size: 0.9rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.cd9b8dc83 input:focus,
.cd9b8dc83 textarea:focus,
.cd9b8dc83 select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary-glow);
}

.cd9b8dc83 textarea {
  min-height: 150px;
  resize: vertical;
}

.cbc21a71c {
  display: inline-block;
  padding: 0.8rem 2rem;
  background: var(--color-primary);
  color: var(--color-bg);
  font-family: var(--font-typewriter);
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: var(--transition);
}

.cbc21a71c:hover {
  background: var(--color-primary-dim);
  box-shadow: 0 0 20px var(--color-primary-glow);
}

/* ============ 搜索页 ============ */
.cefaf4337 {
  max-width: 600px;
  margin: 2rem auto;
  position: relative;
}

.cefaf4337 input {
  width: 100%;
  padding: 1rem 1.5rem;
  padding-right: 3rem;
  background: rgba(0, 255, 0, 0.03);
  border: 2px solid rgba(0, 255, 0, 0.3);
  color: var(--color-primary);
  font-family: var(--font-typewriter);
  font-size: 1rem;
  border-radius: var(--border-radius);
}

.cefaf4337 button {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 1.2rem;
  cursor: pointer;
}

.c43768492 {
  max-width: 800px;
  margin: 2rem auto;
}

.search-result-item {
  padding: 1.5rem;
  border-bottom: 1px solid rgba(0, 255, 0, 0.1);
}

.search-result-item h3 a {
  color: var(--color-primary);
}

.search-result-item p {
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

/* ============ 404 页面 ============ */
.page-404 {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.page-404 h1 {
  font-size: 8rem;
  font-family: var(--font-typewriter);
  color: var(--color-primary);
  text-shadow: 0 0 30px var(--color-primary-glow);
  animation: glitch404 3s infinite;
}

@keyframes glitch404 {
  0%, 90%, 100% { transform: none; opacity: 1; }
  91% { transform: translateX(-5px) skewX(2deg); opacity: 0.8; }
  92% { transform: translateX(5px) skewX(-2deg); opacity: 0.9; }
  93% { transform: none; opacity: 1; }
}

.page-404 p {
  font-family: var(--font-typewriter);
  font-size: 1.2rem;
  margin: 1rem 0 2rem;
}

/* ============ 打字机动效 ============ */
.typewriter {
  overflow: hidden;
  border-right: 2px solid var(--color-primary);
  white-space: nowrap;
  animation: typing 3.5s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink-caret {
  from, to { border-color: transparent; }
  50% { border-color: var(--color-primary); }
}

/* ============ 绝密印章动画 ============ */
.cf3e903d2 {
  position: relative;
  display: inline-block;
}

.cf3e903d2::after {
  content: '已解密';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-15deg);
  font-family: var(--font-typewriter);
  font-size: 2rem;
  color: var(--color-secondary);
  border: 4px solid var(--color-secondary);
  padding: 0.3rem 1rem;
  opacity: 0;
  animation: stampDown 0.5s ease forwards;
  animation-delay: 1s;
}

@keyframes stampDown {
  0% { transform: translate(-50%, -50%) rotate(-15deg) scale(3); opacity: 0; }
  50% { transform: translate(-50%, -50%) rotate(-15deg) scale(1.1); opacity: 0.8; }
  100% { transform: translate(-50%, -50%) rotate(-15deg) scale(1); opacity: 0.9; }
}

/* ============ FAQ 折叠 ============ */
.cec8ed2bd {
  border: 1px solid rgba(0, 255, 0, 0.1);
  margin-bottom: 0.5rem;
}

.c63a045ab {
  padding: 1rem 1.5rem;
  cursor: pointer;
  font-family: var(--font-typewriter);
  font-size: 0.9rem;
  color: var(--color-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.c63a045ab:hover {
  background: rgba(0, 255, 0, 0.03);
}

.c63a045ab::after {
  content: '+';
  font-size: 1.2rem;
}

.cec8ed2bd.cc75c12cf .c63a045ab::after {
  content: '-';
}

.c25bc7844 {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.cec8ed2bd.cc75c12cf .c25bc7844 {
  padding: 0 1.5rem 1rem;
  max-height: 500px;
}

/* ============ 响应式设计 ============ */
@media (max-width: 992px) {
  .c0650764c {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cecdbc9f3 {
    grid-template-columns: 1fr;
  }
  
  .c9a4ac35a {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  html { font-size: 14px; }
  
  .c246124ed {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(17, 17, 17, 0.98);
    flex-direction: column;
    padding: 1rem;
    border-top: 1px solid rgba(0, 255, 0, 0.2);
  }
  
  .c246124ed.cc75c12cf {
    display: flex;
  }
  
  .c9f52adb2 {
    display: flex;
  }
  
  .c4843226c h1 {
    font-size: 2rem;
  }
  
  .c5cbe9b33 {
    grid-template-columns: 1fr;
  }
  
  .c0650764c {
    grid-template-columns: 1fr;
  }
  
  .debunk-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .c4843226c h1 {
    font-size: 1.6rem;
  }
  
  .c8a732c37 h2 {
    font-size: 1.4rem;
  }
  
  .c64ff743c {
    padding: 0 1rem;
  }
}

/* ============ 工具类 ============ */
.c6dc1bd9e { text-align: center; }
.text-green { color: var(--color-primary); }
.text-red { color: var(--color-secondary); }
.c7d0dad8c { margin-top: 1rem; }
.c050f1754 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.c4e83fc61 { margin-bottom: 2rem; }
.c6734f90b { margin-bottom: 3rem; }

/* Schema 标记隐藏 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}