/* ============================================
   关于我们页面样式 - about-page.css
   报掌柜登报网 /auto 页面专用样式
   ============================================ */

/* 主题变量与全局选择色 */
:root {
    --theme-color: #409EFF;
    --color-link: #409EFF;
    --border-radius: 10px;
    --border-radius-sm: 8px;
    --header-blur: 32px;
    --header-blur-classic: 8px;
    --header-bg-color: #ffffff;
}
::selection { background: #409EFF; color: #fff; }
::-moz-selection { background: #409EFF; color: #fff; }

/* ===== 页面自定义变量 ===== */
:root {
  --bz-primary: #1e6fff;
  --bz-primary-dark: #1557c4;
  --bz-navy: #0f2a5c;
  --bz-gold: #c9a961;
  --bz-text: #222;
  --bz-text-sub: #5a6572;
  --bz-line: #e6eaf0;
  --bg-light: #f5f7fa;
  --bg-soft: #eef4fb;
  --bz-white: #fff;
  --bz-bg-light: #f5f7fa;
  --bz-bg-soft: #eef4fb;
}

.bz-page *, .bz-page *::before, .bz-page *::after { box-sizing: border-box; }
.bz-page {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
  color: var(--bz-text);
  background: var(--bz-white);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
.bz-page img { max-width: 100%; height: auto; }
.bz-page h1, .bz-page h2, .bz-page h3, .bz-page h4 { line-height: 1.3; }

.bz-container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* ===== 顶部横幅 ===== */
.bz-hero {
  background: linear-gradient(135deg, var(--bz-navy) 0%, #16407e 55%, #1e6fff 130%);
  color: var(--bz-white);
  padding: 80px 24px 72px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.bz-hero::before {
  content: ""; position: absolute; top: -120px; right: -80px;
  width: 380px; height: 380px; border-radius: 50%;
  background: radial-gradient(circle, rgba(201,169,97,.22) 0%, transparent 65%);
}
.bz-hero::after {
  content: ""; position: absolute; bottom: -140px; left: -100px;
  width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.08) 0%, transparent 65%);
}
.bz-hero-inner { position: relative; z-index: 1; }
.bz-hero .bz-crumb { font-size: 13px; color: rgba(255,255,255,.65); letter-spacing: 1px; margin-bottom: 20px; }
.bz-hero .bz-crumb a { color: rgba(255,255,255,.8); text-decoration: none; }
.bz-hero .bz-crumb a:hover { color: var(--bz-gold); }
.bz-hero h1 { font-size: 44px; font-weight: 700; margin: 0 0 18px; letter-spacing: 2px; }
.bz-hero p { font-size: 17px; color: rgba(255,255,255,.82); max-width: 640px; margin: 0 auto; }

/* ===== 区块通用 ===== */
.bz-section { padding: 80px 0; }
.bz-section--gray { background: var(--bz-bg-light); }
.bz-section--soft { background: var(--bz-bg-soft); }
.bz-section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.bz-section-head .bz-tag {
  display: inline-block; font-size: 13px; color: var(--bz-primary);
  letter-spacing: 2px; margin-bottom: 10px; font-weight: 600;
}
.bz-section-head h2 { font-size: 32px; font-weight: 700; margin: 0 0 14px; color: var(--bz-navy); }
.bz-section-head p { font-size: 15px; color: var(--bz-text-sub); margin: 0; }

/* ===== 公司简介 ===== */
.bz-about-grid {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center;
}
.bz-about-text h3 { font-size: 26px; font-weight: 700; color: var(--bz-navy); margin: 0 0 20px; }
.bz-about-text p { font-size: 15px; color: var(--bz-text-sub); margin: 0 0 16px; text-align: justify; }
.bz-about-points { list-style: none; margin: 24px 0 0; padding: 0; }
.bz-about-points li { position: relative; padding-left: 28px; font-size: 15px; color: var(--bz-text); margin-bottom: 12px; }
.bz-about-points li::before {
  content: ""; position: absolute; left: 0; top: 7px;
  width: 12px; height: 12px; border-radius: 50%; background: var(--bz-primary);
}
.bz-about-card {
  background: var(--bz-white); border: 1px solid var(--bz-line);
  border-radius: 12px; padding: 36px 32px;
  box-shadow: 0 12px 32px rgba(15,42,92,.08);
}
.bz-about-card .bz-quote {
  font-size: 17px; font-weight: 600; color: var(--bz-navy);
  line-height: 1.9; margin: 0 0 16px;
  border-left: 4px solid var(--bz-gold); padding-left: 18px;
}
.bz-about-card .bz-quote-author { font-size: 13px; color: var(--bz-text-sub); }

/* ===== 核心数据 ===== */
.bz-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.bz-stat {
  text-align: center; background: var(--bz-white); border: 1px solid var(--bz-line);
  border-radius: 12px; padding: 36px 16px 32px;
  transition: box-shadow .3s, transform .3s;
}
.bz-stat:hover { box-shadow: 0 14px 36px rgba(30,111,255,.14); transform: translateY(-4px); }
.bz-stat .bz-num { font-size: 42px; font-weight: 700; color: var(--bz-primary); line-height: 1; margin-bottom: 10px; }
.bz-stat .bz-num span { font-size: 22px; }
.bz-stat .bz-label { font-size: 14px; color: var(--bz-text-sub); }

/* ===== 业务范围 ===== */
.bz-services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.bz-service {
  background: var(--bz-white); border: 1px solid var(--bz-line); border-radius: 12px;
  padding: 30px 26px; transition: box-shadow .3s, transform .3s, border-color .3s;
  text-decoration: none; color: inherit; display: block;
}
.bz-service:hover {
  border-color: var(--bz-primary);
  box-shadow: 0 14px 36px rgba(30,111,255,.12);
  transform: translateY(-4px);
}
.bz-service-ico {
  width: 52px; height: 52px; border-radius: 12px;
  background: var(--bz-bg-soft);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.bz-service-ico svg { width: 26px; height: 26px; stroke: var(--bz-primary); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.bz-service h3 { font-size: 17px; font-weight: 700; color: var(--bz-navy); margin: 0 0 8px; }
.bz-service p { font-size: 13.5px; color: var(--bz-text-sub); margin: 0; }

/* ===== 登报流程 ===== */
.bz-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: bz-step; }
.bz-step {
  position: relative; background: var(--bz-white); border: 1px solid var(--bz-line);
  border-radius: 12px; padding: 30px 22px 26px; text-align: center;
}
.bz-step .bz-step-num {
  counter-increment: bz-step;
  width: 40px; height: 40px; margin: 0 auto 16px; border-radius: 50%;
  background: var(--bz-primary); color: var(--bz-white);
  font-size: 18px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.bz-step h3 { font-size: 16px; font-weight: 700; color: var(--bz-navy); margin: 0 0 8px; }
.bz-step p { font-size: 13px; color: var(--bz-text-sub); margin: 0; }
.bz-step::after {
  content: ""; position: absolute; top: 50%; right: -16px;
  width: 8px; height: 8px;
  border-top: 2px solid var(--bz-primary);
  border-right: 2px solid var(--bz-primary);
  transform: translateY(-50%) rotate(45deg);
}
.bz-step:last-child::after { display: none; }

/* ===== 合作媒体 ===== */
.bz-media { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.bz-media-item {
  text-align: center; background: var(--bz-white); border: 1px solid var(--bz-line);
  border-radius: 10px; padding: 24px 12px;
  transition: border-color .3s, box-shadow .3s;
}
.bz-media-item:hover { border-color: var(--bz-primary); box-shadow: 0 10px 28px rgba(30,111,255,.1); }
.bz-media-item .bz-media-name { font-size: 18px; font-weight: 700; color: var(--bz-navy); margin-bottom: 4px; letter-spacing: 1px; }
.bz-media-item .bz-media-type { font-size: 12.5px; color: var(--bz-text-sub); }

/* ===== 服务优势 ===== */
.bz-features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.bz-feature { text-align: center; padding: 30px 16px; }
.bz-feature .bz-feature-ico {
  width: 58px; height: 58px; margin: 0 auto 16px; border-radius: 50%;
  background: var(--bz-bg-soft);
  display: flex; align-items: center; justify-content: center;
}
.bz-feature .bz-feature-ico svg { width: 28px; height: 28px; stroke: var(--bz-primary); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.bz-feature h3 { font-size: 17px; font-weight: 700; color: var(--bz-navy); margin: 0 0 8px; }
.bz-feature p { font-size: 13.5px; color: var(--bz-text-sub); margin: 0; }

/* ===== 回到顶部 ===== */
.bz-backtop {
  position: fixed; right: 24px; bottom: 32px; z-index: 99;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--bz-primary); color: #fff; border: none;
  font-size: 16px; cursor: pointer; font-family: inherit;
  box-shadow: 0 6px 20px rgba(30,111,255,.35);
  transition: all .3s;
}
.bz-backtop:hover { background: var(--bz-primary-dark); transform: translateY(-3px); }

/* ===== 响应式适配 ===== */
@media (max-width: 980px) {
  .bz-hero { padding: 60px 20px 52px; }
  .bz-hero h1 { font-size: 34px; }
  .bz-about-grid { grid-template-columns: 1fr; gap: 40px; }
  .bz-services { grid-template-columns: repeat(2, 1fr); }
  .bz-steps { grid-template-columns: repeat(2, 1fr); gap: 40px 24px; }
  .bz-step::after { display: none; }
  .bz-stats { grid-template-columns: repeat(2, 1fr); }
  .bz-media { grid-template-columns: repeat(3, 1fr); }
  .bz-features { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .bz-section { padding: 50px 0; }
  .bz-section-head h2 { font-size: 26px; }
  .bz-services { grid-template-columns: 1fr; }
  .bz-steps { grid-template-columns: 1fr; }
  .bz-stats { grid-template-columns: 1fr 1fr; gap: 14px; }
  .bz-stat { padding: 26px 10px 22px; }
  .bz-stat .bz-num { font-size: 32px; }
  .bz-media { grid-template-columns: repeat(2, 1fr); }
  .bz-features { grid-template-columns: 1fr; }
}