:root {
  --brand: #1a4fd6;
  --brand-d: #123ca8;
  --orange: #e65100;
  --green: #0f9d58;
  --text: #1f2430;
  --dim: #6b7280;
  --line: #e5e8ef;
  --bg: #f5f7fa;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text); background: var(--bg); font-size: 16px; line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px; }

/* header */
.top { background: #fff; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; }
.top-in { display: flex; align-items: center; gap: 16px; height: 64px; }
.logo { font-size: 22px; font-weight: 800; color: var(--brand); white-space: nowrap; }
.logo span { color: var(--orange); }
.sbox { flex: 1; display: flex; max-width: 520px; }
.sbox input {
  flex: 1; height: 40px; border: 2px solid var(--brand); border-right: 0;
  border-radius: 6px 0 0 6px; padding: 0 12px; font-size: 15px; outline: none;
}
.sbox button {
  height: 40px; padding: 0 20px; background: var(--brand); color: #fff; border: 0;
  border-radius: 0 6px 6px 0; font-size: 15px; cursor: pointer; font-weight: 600;
}
.sbox button:hover { background: var(--brand-d); }
.nav { display: flex; gap: 18px; align-items: center; font-size: 15px; white-space: nowrap; }
.nav a:hover { color: var(--brand); }
.btn-join { background: var(--orange); color: #fff; padding: 6px 14px; border-radius: 6px; font-weight: 600; }
.btn-join:hover { background: #c94600; color: #fff; }

/* hero */
.hero { text-align: center; padding: 48px 0 28px; }
.hero h1 { font-size: 38px; margin: 0 0 12px; letter-spacing: 1px; }
.hero-sub { color: var(--dim); font-size: 17px; margin: 0 0 24px; }
.hero-search { display: flex; max-width: 640px; margin: 0 auto; }
.hero-search input {
  flex: 1; height: 50px; border: 2px solid var(--brand); border-right: 0;
  border-radius: 8px 0 0 8px; padding: 0 16px; font-size: 16px; outline: none;
}
.hero-search button {
  height: 50px; padding: 0 32px; background: var(--brand); color: #fff; border: 0;
  border-radius: 0 8px 8px 0; font-size: 17px; font-weight: 700; cursor: pointer;
}
.hot-words { margin-top: 14px; color: var(--dim); font-size: 15px; }
.hot-words a { margin: 0 8px; color: var(--brand); }
.hot-words a:hover { text-decoration: underline; }

/* stats */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 20px 0; margin-bottom: 28px;
}
.stats div { text-align: center; border-right: 1px solid var(--line); }
.stats div:last-child { border-right: 0; }
.stats b { display: block; font-size: 30px; color: var(--brand); line-height: 1.2; }
.stats span { color: var(--dim); font-size: 15px; }

.sec { margin-bottom: 32px; }
.sec h2 { font-size: 22px; margin: 0 0 16px; display: flex; align-items: baseline; gap: 10px; }
.sec h2 em { font-size: 14px; color: var(--dim); font-style: normal; font-weight: 400; }
.more { text-align: right; }
.more a { color: var(--brand); font-size: 15px; }

/* city */
.city-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.city-card {
  background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 14px 8px;
  text-align: center; transition: .15s;
}
.city-card:hover { border-color: var(--brand); box-shadow: 0 4px 14px rgba(26,79,214,.12); }
.city-card b { display: block; font-size: 17px; }
.city-card span { color: var(--dim); font-size: 13px; }

/* cluster cards */
.cl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.cl-card {
  background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px; transition: .15s;
  display: block;
}
.cl-card:hover { border-color: var(--brand); box-shadow: 0 6px 18px rgba(26,79,214,.12); }
.cl-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.cl-head b { font-size: 17px; }
.lv { font-size: 12px; padding: 2px 7px; border-radius: 4px; color: #fff; white-space: nowrap; }
.lv-g { background: #d93025; }
.lv-p { background: var(--orange); }
.lv-c { background: var(--dim); }
.cl-p { color: var(--text); font-size: 15px; margin: 4px 0; }
.cl-s { color: var(--orange); font-size: 14px; margin: 4px 0; }
.cl-n { color: var(--dim); font-size: 13px; }

/* factory list */
.f-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.f-item {
  background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px; display: block; transition: .15s;
}
.f-item:hover { border-color: var(--brand); box-shadow: 0 6px 18px rgba(26,79,214,.1); }
.f-name { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.badge {
  font-size: 12px; background: var(--green); color: #fff; padding: 2px 7px;
  border-radius: 4px; margin-left: 8px; font-style: normal; font-weight: 500; vertical-align: middle;
}
.f-meta { color: var(--dim); font-size: 14px; margin-bottom: 8px; }
.linkish { color: var(--brand); }
.f-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.f-tags span { background: #eef2fb; color: var(--brand-d); font-size: 13px; padding: 3px 9px; border-radius: 4px; }
.f-intro { color: var(--dim); font-size: 14px; margin: 8px 0 0; }

/* cta */
.cta {
  background: linear-gradient(135deg, #1a4fd6, #123ca8); color: #fff; border-radius: 14px;
  padding: 26px 28px; display: flex; align-items: center; justify-content: space-between; margin-bottom: 40px;
}
.cta b { font-size: 20px; display: block; }
.cta span { font-size: 15px; opacity: .9; }
.cta .btn, .btn {
  background: #fff; color: var(--brand-d); padding: 12px 28px; border-radius: 8px;
  font-weight: 700; display: inline-block; border: 0; cursor: pointer; font-size: 16px;
}
.btn.big { width: 100%; background: var(--brand); color: #fff; padding: 14px; font-size: 17px; }

/* page */
.page-h1 { font-size: 26px; margin: 22px 0 6px; display: flex; align-items: baseline; gap: 12px; }
.page-h1 em { font-size: 15px; color: var(--dim); font-style: normal; font-weight: 400; }
.crumb { color: var(--dim); font-size: 14px; margin: 18px 0 8px; }
.crumb a { color: var(--brand); }
.hit-cl { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; margin-bottom: 14px; font-size: 15px; }
.hit-cl a { color: var(--brand); margin-right: 14px; }
.hit-cl span { color: var(--dim); margin-right: 6px; }
.filter { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.filter a {
  background: #fff; border: 1px solid var(--line); border-radius: 20px;
  padding: 5px 14px; font-size: 14px; color: var(--dim);
}
.filter a.on { background: var(--brand); color: #fff; border-color: var(--brand); }
.empty { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 40px; text-align: center; }
.empty.big-empty { padding: 80px 20px; }
.empty .dim, .dim { color: var(--dim); font-size: 14px; }
.empty a, .dim a { color: var(--brand); }
.pager { display: flex; gap: 8px; justify-content: center; margin: 24px 0; }
.pager a { background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 6px 12px; }
.pager a.on { background: var(--brand); color: #fff; border-color: var(--brand); }

/* cluster detail */
.cl-detail { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 24px; margin-bottom: 24px; }
.cl-detail-head { display: flex; align-items: center; gap: 10px; }
.cl-detail-head h1 { font-size: 26px; margin: 0; }
.cl-scale { color: var(--orange); font-weight: 600; margin: 10px 0 6px; font-size: 16px; }
.cl-sum { color: var(--text); margin: 0 0 12px; font-size: 16px; }
.cl-tags span { background: #eef2fb; color: var(--brand-d); font-size: 13px; padding: 4px 10px; border-radius: 4px; margin-right: 6px; display: inline-block; margin-bottom: 4px; }

/* factory detail */
.fd { display: grid; grid-template-columns: 1fr 340px; gap: 20px; margin-bottom: 40px; }
.fd-main { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 24px; }
.fd-main h1 { font-size: 26px; margin: 0 0 10px; }
.fd-meta { display: flex; flex-wrap: wrap; gap: 16px; color: var(--dim); font-size: 15px; margin-bottom: 12px; }
.fd-meta a { color: var(--brand); }
.fd-meta .src { color: var(--green); font-weight: 600; }
.fd-tags { margin-bottom: 16px; }
.fd-tags span { background: #eef2fb; color: var(--brand-d); font-size: 14px; padding: 4px 10px; border-radius: 4px; margin: 0 6px 6px 0; display: inline-block; }
.fd-intro h3 { font-size: 17px; margin: 18px 0 6px; }
.fd-intro p { margin: 0; font-size: 15px; color: #374151; }
.fd-same { margin-top: 24px; border-top: 1px solid var(--line); padding-top: 16px; }
.fd-same h3 { font-size: 17px; margin: 0 0 8px; }
.fd-same ul { list-style: none; padding: 0; margin: 0; }
.fd-same li { padding: 8px 0; border-bottom: 1px dashed var(--line); display: flex; justify-content: space-between; }
.fd-same a { color: var(--brand); }
.fd-same em { color: var(--dim); font-style: normal; font-size: 14px; }

.card-box { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 18px; margin-bottom: 14px; }
.card-box h3 { font-size: 17px; margin: 0 0 10px; }
.phone { font-size: 26px; font-weight: 800; color: var(--orange); margin: 0 0 4px; }
.inq input, .inq textarea, .join-form input, .join-form textarea, .join-form select {
  width: 100%; border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px;
  font-size: 15px; margin-bottom: 10px; outline: none; font-family: inherit;
}
.inq input:focus, .inq textarea:focus, .join-form input:focus, .join-form textarea:focus { border-color: var(--brand); }
.inq button, .join-form .btn.big { width: 100%; background: var(--orange); color: #fff; border: 0; border-radius: 8px; padding: 12px; font-size: 16px; font-weight: 700; cursor: pointer; }
.inq button:hover { background: #c94600; }
.agree { font-size: 14px; color: var(--dim); display: flex; gap: 6px; align-items: flex-start; margin-bottom: 10px; }
.msg { font-size: 15px; margin: 10px 0 0; text-align: center; }
.msg.ok { color: var(--green); font-weight: 600; }
.msg.err { color: #d93025; font-weight: 600; }

/* join */
.join-tip { background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--orange); border-radius: 8px; padding: 14px 18px; font-size: 16px; margin-bottom: 20px; }
.join-form { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 24px; margin-bottom: 20px; }
.row { margin-bottom: 14px; }
.row label { display: block; font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.row label i { color: #d93025; font-style: normal; }
.row input, .row select, .row textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px; font-size: 15px; outline: none; font-family: inherit;
}
.row input:focus, .row select:focus, .row textarea:focus { border-color: var(--brand); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.join-note { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 20px 24px; margin-bottom: 40px; }
.join-note h3 { margin: 0 0 10px; font-size: 17px; }
.join-note ul { margin: 0; padding-left: 20px; color: #374151; font-size: 15px; }

/* article */
.article { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 24px 28px; margin-bottom: 40px; font-size: 16px; }
.article h3 { font-size: 19px; margin: 22px 0 8px; }
.article h3:first-child { margin-top: 0; }
.article ul { padding-left: 20px; }

/* footer */
.ft { background: #1f2430; color: #cbd2dd; padding: 30px 0; margin-top: 20px; font-size: 14px; }
.ft .wrap { text-align: center; }
.ft-tags { margin-bottom: 10px; }
.ft-tags span { border: 1px solid #4b5563; border-radius: 4px; padding: 3px 10px; margin: 0 5px; font-size: 13px; }
.ft-dim { color: #8b93a1; font-size: 13px; }

/* admin */
.admin-body { background: #f0f2f5; }
.admin { max-width: 1400px; margin: 0 auto; padding: 16px; }
.admin-top {
  background: #fff; border-radius: 10px; padding: 14px 20px; display: flex;
  justify-content: space-between; align-items: center; margin-bottom: 14px;
}
.admin-top b { font-size: 18px; }
.admin-top span a { margin-left: 18px; color: var(--brand); font-size: 15px; }
.dot { background: #d93025; color: #fff; border-radius: 10px; padding: 1px 7px; font-size: 12px; font-style: normal; margin-left: 4px; }
.admin-stat { display: flex; gap: 12px; margin-bottom: 14px; }
.admin-stat a { flex: 1; background: #fff; border-radius: 10px; padding: 14px; text-align: center; font-size: 15px; }
.admin-stat b { display: block; font-size: 26px; color: var(--brand); }
.admin-tip { background: #fff7ed; border: 1px solid #fed7aa; border-radius: 8px; padding: 10px 16px; font-size: 15px; color: #9a3412; margin-bottom: 12px; }
.tbl { width: 100%; background: #fff; border-radius: 10px; border-collapse: collapse; overflow: hidden; font-size: 14px; }
.tbl th, .tbl td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.tbl th { background: #f7f8fa; font-weight: 600; }
.tbl tr.new { background: #fffbeb; }
.ops { display: flex; gap: 6px; flex-wrap: wrap; }
.mini {
  border: 1px solid var(--line); background: #fff; border-radius: 5px; padding: 4px 10px;
  cursor: pointer; font-size: 13px; font-family: inherit;
}
.mini.ok { color: var(--green); border-color: var(--green); }
.mini.no { color: #d93025; border-color: #f3b0ab; }
.st { font-size: 12px; padding: 2px 8px; border-radius: 4px; }
.st-p { background: #fff3cd; color: #92610a; }
.st-a { background: #d1fae5; color: #065f46; }
.st-r { background: #fee2e2; color: #991b1b; }
.center { text-align: center; }

/* login */
.login-box {
  max-width: 360px; margin: 12vh auto; background: #fff; border-radius: 12px;
  padding: 32px; box-shadow: 0 8px 30px rgba(0,0,0,.08);
}
.login-box h2 { margin: 0 0 20px; font-size: 20px; text-align: center; }
.login-box input {
  width: 100%; border: 1px solid var(--line); border-radius: 6px; padding: 12px;
  font-size: 15px; margin-bottom: 12px; outline: none;
}
.login-box .btn.big { width: 100%; background: var(--brand); color: #fff; }

/* responsive */
@media (max-width: 900px) {
  .hero h1 { font-size: 28px; }
  .cl-grid { grid-template-columns: repeat(2, 1fr); }
  .f-list { grid-template-columns: 1fr; }
  .fd { grid-template-columns: 1fr; }
  .city-grid { grid-template-columns: repeat(3, 1fr); }
  .row2 { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .top-in { flex-wrap: wrap; height: auto; padding: 10px 16px; gap: 10px; }
  .sbox { order: 3; max-width: none; width: 100%; }
  .nav { order: 2; margin-left: auto; gap: 12px; }
  .hero { padding: 28px 0 20px; }
  .hero h1 { font-size: 24px; }
  .hero-search { flex-direction: column; gap: 8px; }
  .hero-search input { border-right: 2px solid var(--brand); border-radius: 8px; }
  .hero-search button { border-radius: 8px; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 0; padding: 12px 0; }
  .stats div { padding: 10px 0; }
  .stats div:nth-child(2) { border-right: 0; }
  .cl-grid { grid-template-columns: 1fr; }
  .cta { flex-direction: column; gap: 14px; text-align: center; }
  .admin-stat { flex-wrap: wrap; }
  .admin-stat a { flex: none; width: 45%; }
  .tbl { font-size: 13px; }
  .tbl th:nth-child(6), .tbl td:nth-child(6) { display: none; }
}