/* ==================== 全局基础样式 ==================== */
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: #263238;
      background: #f5f7fa;
      font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
      font-size: 15px;
      line-height: 1.6;
    }
    a { color: inherit; text-decoration: none; }
    img { display: block; max-width: 100%; }
    .container { width: 1200px; max-width: calc(100% - 40px); margin: 0 auto; }

    /* ==================== 第一部分：通栏头部导航 ==================== */
    .site-header {
      width: 100%;
      height: 100px;
      background: #ffffff;
      border-bottom: 1px solid #e8edf2;
      box-shadow: 0 3px 16px rgba(20, 38, 56, 0.05);
    }
    .header-inner {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 16px;
      min-width: 0;
    }
    .brand-icon {
      width: 60px;
      height: 60px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 60px;
      color: #ffffff;
      background: #c9272c;
      border-radius: 14px;
      font-size: 31px;
      box-shadow: 0 7px 15px rgba(201, 39, 44, 0.2);
    }
    .brand-copy { min-width: 0; }
    .brand-name {
      margin: 0;
      color: #182b3a;
      font-size: 28px;
      font-weight: 800;
      letter-spacing: 1px;
      line-height: 1.25;
      white-space: nowrap;
    }
    .brand-slogan {
      margin: 5px 0 0;
      color: #788795;
      font-size: 13px;
      letter-spacing: 1px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 26px;
    }
    .header-link {
      color: #52616e;
      font-size: 16px;
      transition: color .2s ease;
      white-space: nowrap;
    }
    .header-link:hover { color: #c9272c; }
    .complaint-button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-width: 158px;
      height: 52px;
      padding: 0 24px;
      color: #ffffff;
      background: #c9272c;
      border: 1px solid #c9272c;
      border-radius: 7px;
      font-size: 17px;
      font-weight: 700;
      box-shadow: 0 7px 16px rgba(201, 39, 44, 0.2);
      transition: background .2s ease, transform .2s ease;
      white-space: nowrap;
    }
    .complaint-button:hover {
      background: #aa1e23;
      transform: translateY(-1px);
    }

    /* ==================== 第二部分：宣传横幅 ==================== */
    .promo-section {
      padding: 26px 0;
      background: #c9272c;
    }
    .promo-inner {
      min-height: 98px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: #ffffff;
    }
    .promo-title {
      margin: 0;
      font-size: 28px;
      line-height: 1.45;
      font-weight: 800;
      letter-spacing: 1px;
    }
    .promo-subtitle {
      margin: 7px 0 0;
      color: rgba(255, 255, 255, .9);
      font-size: 16px;
      letter-spacing: 1px;
    }
    .promo-search {
      display: flex;
      width: min(620px, 100%);
      height: 46px;
      margin-top: 15px;
      overflow: hidden;
      background: #ffffff;
      border: 2px solid rgba(255, 255, 255, .85);
      border-radius: 7px;
      box-shadow: 0 5px 16px rgba(85, 12, 15, .14);
    }
    .promo-search input {
      flex: 1;
      min-width: 0;
      padding: 0 16px;
      color: #263238;
      background: #ffffff;
      border: 0;
      outline: none;
      font: inherit;
      font-size: 14px;
    }
    .promo-search input::placeholder { color: #9aa4ac; }
    .promo-search button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-width: 112px;
      padding: 0 20px;
      color: #ffffff;
      background: #252b31;
      border: 0;
      cursor: pointer;
      font: inherit;
      font-size: 15px;
      font-weight: 700;
      transition: background .2s ease;
    }
    .promo-search button:hover { background: #15191d; }

    /* ==================== 第三部分 A：四个图文入口 ==================== */
    .feature-section { padding: 38px 0 24px; }
    .section-heading {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 20px;
    }
    .section-title {
      display: flex;
      align-items: center;
      gap: 10px;
      margin: 0;
      color: #1e303e;
      font-size: 22px;
      font-weight: 800;
    }
    .section-title::before {
      content: "";
      display: block;
      width: 5px;
      height: 23px;
      background: #c9272c;
      border-radius: 4px;
    }
    .section-more { color: #788795; font-size: 14px; }
    .section-more:hover { color: #c9272c; }
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 20px;
    }
    .feature-card {
      overflow: hidden;
      background: #ffffff;
      border: 1px solid #e7ebf0;
      border-radius: 0px;
    }

    .feature-image-wrap {
      position: relative;
      height: 150px;
      overflow: hidden;
      background: #e9eef3;
    }
    .feature-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .35s ease;
    }

    .feature-icon {
      position: absolute;
      left: 16px;
      bottom: -18px;
      width: 42px;
      height: 42px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      background: #c9272c;
      border: 3px solid #ffffff;
      border-radius: 50%;
      font-size: 17px;
    }
    .feature-content { padding: 22px 17px 18px; }
    .feature-title {
      margin: 0 0 8px;
      color: #243746;
      font-size: 18px;
      font-weight: 800;
    }
    .feature-description {
      min-height: 0px;
      margin: 0 0 0px;
      color: #7a8792;
      font-size: 13px;
      line-height: 1.7;
    }
    .feature-link {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: #c9272c;
      font-size: 14px;
      font-weight: 700;
    }

    /* ==================== 第三部分 B：四列信息列表 ==================== */
    .information-section { padding: 18px 0 48px; }
    .information-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 18px;
    }
    .information-column {
      min-width: 0;
      overflow: hidden;
      background: #ffffff;
      border: 1px solid #e1e7ed;
      border-radius: 9px;
    }
    .information-heading {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      padding: 15px 15px 13px;
      background: #ffffff;
      border-bottom: 1px solid #e9edf1;
    }
    .information-heading h3 {
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0;
      color: #263947;
      font-size: 17px;
      font-weight: 800;
      white-space: nowrap;
    }
    .information-heading h3 i { color: #c9272c; }
    .information-heading a {
      color: #8a969f;
      font-size: 12px;
      white-space: nowrap;
    }
    .information-heading a:hover { color: #c9272c; }
    .information-list {
      display: flex;
      flex-direction: column;
      gap: 8px;
      padding: 12px;
    }
    .information-item {
      min-width: 0;
      padding: 10px 10px 9px;
      background: #ffffff;
      border: 1px solid #e9edf1;
      border-radius: 5px;
      transition: border-color .2s ease, background .2s ease;
    }
    .information-item:hover {
      border-color: #e7a4a6;
      background: #fffafa;
    }
    .information-item a {
      display: block;
      overflow: hidden;
      color: #354652;
      font-size: 13px;
      line-height: 1.6;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .information-item a:hover { color: #c9272c; }
    .information-date {
      display: block;
      margin-top: 5px;
      color: #9aa4ac;
      font-size: 12px;
      line-height: 1.4;
    }

    /* ==================== 第四部分：通栏页脚 ==================== */
    .site-footer {
      padding: 27px 20px;
      color: #c4cbd1;
      background: #252b31;
      text-align: center;
    }
    .footer-main {
      margin: 0;
      color: #f0f2f4;
      font-size: 14px;
    }
    .footer-sub {
      margin: 7px 0 0;
      color: #939da5;
      font-size: 12px;
    }

    /* ==================== 响应式：平板端 ==================== */
    @media (max-width: 1000px) {
      .brand-name { font-size: 24px; }
      .header-actions { gap: 15px; }
      .header-link { font-size: 14px; }
      .complaint-button { min-width: 140px; padding: 0 17px; }
      .feature-grid, .information-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .feature-image-wrap { height: 180px; }
    }


    /* ==================== 响应式：手机端 ==================== */
    @media (max-width: 600px) {
      .container { max-width: calc(100% - 28px); }
      .site-header { height: auto; min-height: 84px; }
      .header-inner { min-height: 84px; gap: 10px; }
      .brand { gap: 10px; }
      .brand-icon {
        width: 44px; height: 44px; flex-basis: 44px;
        border-radius: 10px; font-size: 23px;
      }
      .brand-name { font-size: 18px; letter-spacing: 0; }
      .brand-slogan { margin-top: 3px; font-size: 10px; letter-spacing: 0; }
      .header-actions { gap: 0; }
      .header-link { display: none; }
      .complaint-button {
        min-width: 0; height: 42px; padding: 0 12px;
        gap: 6px; border-radius: 6px; font-size: 13px;
      }
      .promo-section { padding: 22px 0; }
      .promo-inner { min-height: 92px; }
      .promo-title { font-size: 21px; letter-spacing: 0; }
      .promo-subtitle { max-width: 320px; font-size: 13px; line-height: 1.7; }
      .promo-search { height: 43px; margin-top: 13px; }
      .promo-search input { padding: 0 11px; font-size: 13px; }
      .promo-search button { min-width: 88px; padding: 0 12px; gap: 6px; font-size: 13px; }
      .feature-section { padding: 27px 0 15px; }
      .section-title { font-size: 19px; }
      .feature-grid { gap: 12px; }
      .feature-image-wrap { height: 112px; }
      .feature-content { padding: 19px 12px 14px; }
      .feature-title { font-size: 15px; }
      .feature-description { min-height: 0; font-size: 12px; }
      .feature-link { font-size: 12px; }
      .feature-icon { left: 10px; width: 36px; height: 36px; font-size: 14px; }
      .information-section { padding: 15px 0 30px; }
      .information-grid { gap: 12px; }
      .information-heading { padding: 12px 10px; }
      .information-heading h3 { gap: 5px; font-size: 14px; }
      .information-heading a { font-size: 11px; }
      .information-list { gap: 7px; padding: 8px; }
      .information-item { padding: 8px; }
      .information-item a { font-size: 12px; }
      .information-date { font-size: 11px; }
      .site-footer { padding: 22px 14px; }
      .footer-main { font-size: 12px; line-height: 1.8; }
    }

    @media (max-width: 360px) {
      .brand-name { font-size: 16px; }
      .brand-icon { width: 39px; height: 39px; flex-basis: 39px; }
      .complaint-button { padding: 0 9px; font-size: 12px; }
      .feature-grid, .information-grid { grid-template-columns: 1fr; }
      .feature-image-wrap { height: 160px; }
    }