/* ============================================================
   英高加油机资料查询系统 —— 前端样式（手机 + 电脑自适应）
   ============================================================ */
:root{
  --brand:#1a5fb4; --brand-deep:#0f3d74; --brand-light:#eaf2fc;
  --line:#e6eaf1; --text:#1c2733; --muted:#758195; --bg:#eef2f7;
  --green:#1d7d49; --green-bg:#e4f6ec; --gray-bg:#f1f3f7;
  --radius:14px; --shadow:0 6px 24px rgba(15,45,90,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:"Microsoft YaHei","PingFang SC","Segoe UI",sans-serif;
  background:var(--bg);color:var(--text);line-height:1.55;
}
a{color:var(--brand)}

/* ---------- 整体容器 ---------- */
.app{max-width:1020px;margin:0 auto;background:#fff;min-height:100vh;
  box-shadow:0 0 40px rgba(15,45,90,.10)}
.phone{max-width:760px;margin:0 auto;background:#fff;min-height:100vh;
  box-shadow:0 0 30px rgba(15,45,90,.08)}
.content{padding:20px 18px 10px}

/* ---------- 品牌头部 ---------- */
.brand-hero{background:linear-gradient(135deg,var(--brand-deep),#2174d1 60%,#2f8ee0);
  color:#fff;padding:26px 20px 0}
.brand-inner{display:flex;align-items:center;gap:14px}
.brand-logo{font-size:34px;width:58px;height:58px;flex:none;display:flex;align-items:center;
  justify-content:center;background:rgba(255,255,255,.16);border-radius:16px}
.brand-text h1{font-size:21px;letter-spacing:.5px}
.brand-text p{font-size:13px;color:rgba(255,255,255,.82);margin-top:2px}
.tabs{display:flex;gap:6px;margin-top:20px}
.tab{flex:1;font:inherit;font-size:14px;font-weight:600;color:rgba(255,255,255,.75);
  background:rgba(255,255,255,.08);border:0;padding:12px 6px 13px;border-radius:12px 12px 0 0;
  cursor:pointer;transition:background .2s,color .2s}
.tab.active{background:#fff;color:var(--brand-deep)}

/* ---------- Tab 面板 ---------- */
.tabpane{display:none}
.tabpane.active{display:block;animation:fade .2s ease}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

/* ---------- 筛选区 ---------- */
.filters{display:flex;flex-direction:column;gap:10px}
.filters select,.filters input,.full-search{
  font:inherit;font-size:15px;padding:12px 14px;border:1.5px solid var(--line);
  border-radius:12px;background:#fbfcfe;color:var(--text);width:100%}
.full-search{margin-bottom:14px}
.filters select:focus,.filters input:focus,.full-search:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 3px rgba(26,95,180,.12)}
.filter-meta{font-size:12.5px;color:var(--muted);margin:10px 2px}

/* ---------- 机型列表 ---------- */
.ms-group{margin-bottom:14px}
.ms-head{font-size:13px;font-weight:700;color:var(--brand-deep);
  background:var(--brand-light);padding:8px 14px;border-radius:9px;margin-bottom:8px;
  display:flex;align-items:center;gap:8px}
.ms-head::before{content:"";width:4px;height:14px;background:var(--brand);border-radius:2px}
.ms-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.ms-item{display:block;padding:13px 12px;text-align:center;text-decoration:none;color:var(--text);
  font-family:Consolas,Menlo,monospace;font-weight:700;font-size:13.5px;
  border:1.5px solid var(--line);border-radius:11px;background:#fff;transition:all .15s}
.ms-item:hover{border-color:var(--brand);color:var(--brand);box-shadow:0 4px 12px rgba(26,95,180,.12);
  transform:translateY(-1px)}

/* ---------- 证书 / 说明书卡片 ---------- */
.cert-card{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--text);
  border:1.5px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:12px;
  background:#fff;transition:all .15s}
.cert-card:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-1px)}
.cert-main{flex:1;min-width:0}
.cert-cpa{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.cert-no{font-size:17px;font-weight:700;color:var(--brand-deep);margin:3px 0;
  font-family:Consolas,Menlo,monospace}
#manual-list .cert-no{font-family:inherit;font-size:16px}
.cert-sub{font-size:12.5px;color:var(--muted)}
.cert-go{flex:none;color:var(--brand);font-weight:600;font-size:14px}
.pill{display:inline-block;font-size:11px;font-weight:600;padding:1px 9px;border-radius:20px}
.pill-new{background:var(--green-bg);color:var(--green)}
.pill-old{background:var(--gray-bg);color:#68738a}
.empty-tip{text-align:center;color:var(--muted);padding:50px 0}

/* ---------- 资料页（机型 / 证书 / 说明书） ---------- */
.doc-head{background:linear-gradient(135deg,var(--brand-deep),#2174d1);color:#fff;
  padding:30px 22px 24px}
.doc-head h1{font-size:21px;margin-bottom:14px;word-break:break-all}
.doc-head dl{display:grid;gap:7px;font-size:14px}
.doc-head dl > div{display:flex;gap:12px}
.doc-head dt{color:rgba(255,255,255,.72);flex:none;width:4.8em}
.doc-head dd{word-break:break-all}
.group{padding:20px 18px 6px}
.group h2{font-size:16px;color:var(--brand-deep);margin-bottom:12px;
  border-left:4px solid var(--brand);padding-left:10px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}

.notice{margin:16px 18px 0;padding:12px 14px;border-radius:11px;font-size:13.5px;
  background:#f4f6fa;color:#5a6577;border:1px solid var(--line)}
.notice a{font-weight:600}
.notice-new{background:var(--green-bg);color:#176139;border-color:#bfe7d0}

/* 文件卡片：整卡查看 + 独立下载 */
.file-card{display:flex;align-items:stretch;border:1.5px solid var(--line);
  border-radius:13px;margin-bottom:10px;overflow:hidden;background:#fff}
.fc-body{display:flex;align-items:center;gap:12px;flex:1;min-width:0;padding:13px 14px;
  text-decoration:none;color:inherit}
.fc-body:hover{background:#f8fbff}
.fc-download{flex:none;display:flex;align-items:center;padding:0 18px;background:var(--brand-light);
  color:var(--brand);font-size:13.5px;font-weight:700;text-decoration:none;border-left:1px solid var(--line)}
.fc-download:hover{background:#dce9fa}
.file-icon{flex:none;width:46px;height:46px;border-radius:11px;display:flex;
  align-items:center;justify-content:center;font-size:11px;font-weight:700}
.ext-pdf{background:#fdecea;color:#c0392b}
.file-meta{flex:1;min-width:0}
.file-title{display:block;font-size:15px;font-weight:600;word-break:break-all}
.file-sub{display:block;font-size:12px;color:var(--muted);margin-top:3px}
.file-go{flex:none;color:var(--brand);font-weight:600}

/* 同一机型多次型式评价并列 */
.approval-block{border:1.5px solid var(--line);border-radius:16px;padding:12px 14px;
  margin-bottom:14px;background:#fbfcfe}
.approval-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:2px 2px 10px}
.ver-badge{font-size:11.5px;padding:2px 10px;border-radius:20px;font-weight:700}
.ver-new{background:var(--green-bg);color:var(--green)}
.ver-old{background:var(--gray-bg);color:#68738a}
.ver-note{font-size:12px;color:var(--muted)}

/* 机型标签云 */
.chip-cloud{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-block;padding:7px 13px;border:1.5px solid var(--line);border-radius:20px;
  font-family:Consolas,Menlo,monospace;font-size:12.5px;font-weight:600;
  color:var(--brand-deep);text-decoration:none;background:#fff}
.chip:hover{background:var(--brand-light);border-color:var(--brand)}

.back-home{text-align:center;margin:22px 0 8px}
.back-home a{color:var(--brand);text-decoration:none;font-size:14px;font-weight:600}
footer,.app-footer{font-size:12px;color:var(--muted);text-align:center;padding:18px 20px 26px}
.app-footer{display:flex;flex-direction:column;gap:3px;border-top:1px solid var(--line);margin-top:18px}

/* 异常状态 */
.state{padding:80px 32px;text-align:center;color:var(--muted)}
.state-icon{font-size:52px;margin-bottom:16px}
.state h1{font-size:19px;color:var(--text);margin-bottom:10px}

/* ---------- 电脑端适配 ---------- */
@media (min-width:760px){
  body{padding:26px 0}
  .app,.phone{border-radius:20px;overflow:hidden;min-height:calc(100vh - 52px)}
  .ms-grid{grid-template-columns:repeat(4,1fr)}
  .filters{flex-direction:row}
  .filters select{flex:none;width:240px}
  .brand-text h1{font-size:24px}
  .tab{font-size:15px;padding:14px 10px}
}
@media (min-width:1000px){
  .ms-grid{grid-template-columns:repeat(5,1fr)}
}