/* ============================================================
   集买买供应链官网 — 独立子页面样式
   复用 style.css 的设计变量（--accent 品牌蓝 / --ink / --bg-2）
   ============================================================ */

.subpage { background: var(--bg); }

/* ---------------- 顶部导航 ---------------- */
.sub-nav {
  position: sticky; top: 0; z-index: 200;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.sub-nav-inner {
  max-width: 1240px; margin: 0 auto;
  padding: 14px clamp(20px, 5vw, 48px);
  display: flex; align-items: center; gap: 20px;
}
.sub-logo { display: flex; align-items: center; gap: 10px; font-weight: 500; font-size: 15px; white-space: nowrap; }
.sub-logo img { height: 30px; width: auto; }
.sub-nav-links { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.sub-nav-links a {
  padding: 7px 12px; font-size: 14px; color: var(--ink-dim);
  border-radius: 999px; transition: background .2s, color .2s;
}
.sub-nav-links a:hover { color: var(--accent); background: var(--accent-soft); }
.sub-nav-links a.active { color: var(--accent); background: var(--accent-soft); font-weight: 500; }
.sub-nav-cta {
  padding: 9px 18px; font-size: 14px; font-weight: 500; color: #fff;
  background: var(--accent); border-radius: 999px; white-space: nowrap;
  transition: background .2s;
}
.sub-nav-cta:hover { background: var(--accent-deep); }
.sub-burger {
  display: none; margin-left: auto; flex-direction: column; gap: 4px;
  background: none; border: 0; padding: 8px 4px; cursor: pointer;
}
.sub-burger span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .25s, opacity .25s; }
.sub-burger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.sub-burger.open span:nth-child(2) { opacity: 0; }
.sub-burger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------------- 面包屑 ---------------- */
.crumb {
  max-width: 1240px; margin: 0 auto;
  padding: 18px clamp(20px, 5vw, 48px) 0;
  font-size: 13px; color: var(--ink-dim);
}
.crumb a { color: var(--accent); }
.crumb span { margin: 0 6px; color: var(--ink-dim); }

/* ---------------- 页面头 ---------------- */
.sub-main { padding-bottom: 80px; }
.sub-hero {
  max-width: 1240px; margin: 0 auto;
  padding: 48px clamp(20px, 5vw, 48px) 40px;
}
.sub-hero-title {
  font-size: clamp(28px, 4.4vw, 46px); font-weight: 900;
  line-height: 1.22; letter-spacing: -.5px; color: var(--ink);
}
.sub-hero-desc {
  margin-top: 14px; font-size: clamp(15px, 1.6vw, 17px);
  color: var(--ink-dim); line-height: 1.75; max-width: 760px;
}

/* ---------------- 内容区块 ---------------- */
.sub-block {
  max-width: 1240px; margin: 0 auto;
  padding: 32px clamp(20px, 5vw, 48px);
}
.sub-block-head { margin-bottom: 26px; }
.sub-block-head .section-label {
  display: inline-block; font-family: var(--font-d); font-size: 12px;
  letter-spacing: .16em; color: var(--accent); font-weight: 600;
}
.sub-block-head h2 {
  margin-top: 8px; font-size: clamp(21px, 2.6vw, 28px);
  font-weight: 700; color: var(--ink); line-height: 1.35;
}
.sub-lead { font-size: 16px; line-height: 1.9; color: var(--ink-dim); max-width: 860px; }
.sub-empty {
  padding: 28px; background: var(--bg-2); border-radius: var(--radius);
  color: var(--ink-dim); font-size: 15px; text-align: center;
}

/* 要点列表 */
.sub-points { margin-top: 24px; display: grid; gap: 12px; list-style: none; }
.sub-points li {
  position: relative; padding: 14px 18px 14px 42px;
  background: var(--bg-2); border-radius: 12px;
  font-size: 15px; color: var(--ink); line-height: 1.6;
}
.sub-points li::before {
  content: ''; position: absolute; left: 18px; top: 50%;
  width: 8px; height: 8px; margin-top: -4px; border-radius: 50%;
  background: var(--accent);
}
.sub-points-2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

/* 数据卡片 */
.sub-stats {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}
.sub-stat {
  padding: 24px 22px; background: var(--bg-2);
  border-radius: var(--radius); border: 1px solid var(--line);
}
.sub-stat-value {
  font-family: var(--font-d); font-size: 38px; font-weight: 900;
  color: var(--accent); line-height: 1;
}
.sub-stat-value span { font-size: 17px; margin-left: 3px; }
.sub-stat-label { margin-top: 10px; font-size: 15px; font-weight: 500; color: var(--ink); }
.sub-stat-desc { margin-top: 5px; font-size: 13px; color: var(--ink-dim); line-height: 1.55; }

/* 通用卡片 */
.sub-cards { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.sub-cards-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.sub-cards-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.sub-card {
  position: relative; padding: 26px 24px;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); transition: transform .25s, box-shadow .25s, border-color .25s;
}
.sub-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(18, 102, 227, .28); }
.sub-card-num {
  font-family: var(--font-d); font-size: 13px; font-weight: 800;
  color: var(--accent); opacity: .5; letter-spacing: .06em;
}
.sub-card h3 { margin-top: 10px; font-size: 17px; font-weight: 600; color: var(--ink); }
.sub-card p { margin-top: 9px; font-size: 14px; line-height: 1.8; color: var(--ink-dim); }
.sub-icon { margin-top: 12px; width: 34px; height: 34px; color: var(--accent); }
.sub-icon svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

/* 步骤列表 */
.sub-steps { list-style: none; counter-reset: step; display: grid; gap: 14px; }
.sub-steps li {
  counter-increment: step; position: relative;
  padding: 20px 24px 20px 66px;
  background: var(--bg-2); border-radius: 14px; border: 1px solid var(--line);
}
.sub-steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 22px; top: 20px;
  font-family: var(--font-d); font-size: 15px; font-weight: 800; color: var(--accent);
}
.sub-steps strong { display: block; font-size: 16px; font-weight: 600; color: var(--ink); }
.sub-steps span { display: block; margin-top: 5px; font-size: 14px; color: var(--ink-dim); line-height: 1.7; }

/* 对比表格 */
.sub-table {
  border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; background: var(--card);
}
.sub-table-row {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr;
  border-bottom: 1px solid var(--line); font-size: 14px;
}
.sub-table-row:last-child { border-bottom: 0; }
.sub-table-row > span { padding: 15px 18px; color: var(--ink-dim); }
.sub-table-row > span:first-child { color: var(--ink); font-weight: 500; }
.sub-table-head { background: var(--bg-2); }
.sub-table-head > span { font-weight: 600; color: var(--ink); font-size: 13px; letter-spacing: .04em; }
.sub-table-after { color: var(--accent) !important; font-weight: 600; }

/* 客户评价 */
.sub-quote {
  padding: 32px 34px; background: var(--bg-2);
  border-left: 4px solid var(--accent); border-radius: 0 14px 14px 0;
}
.sub-quote p { font-size: 16px; line-height: 1.95; color: var(--ink); }
.sub-quote footer { margin-top: 14px; font-size: 14px; color: var(--ink-dim); }

/* 品牌墙 */
.sub-brands { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
.sub-brand {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  padding: 22px 16px; background: var(--bg-2); border-radius: 14px;
  border: 1px solid var(--line); text-align: center;
}
.sub-brand img { max-height: 46px; width: auto; object-fit: contain; }
.brand-ph { font-size: 15px; font-weight: 600; color: var(--ink); }
.brand-name { font-size: 14px; color: var(--ink); }
.brand-cat { font-size: 12px; color: var(--ink-dim); }

/* 图集 */
.sub-gallery { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.sub-gallery figure { border-radius: 14px; overflow: hidden; border: 1px solid var(--line); background: var(--bg-2); }
.sub-gallery img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }

/* 资讯列表 */
.sub-news-list { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.sub-news-list-compact { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.sub-news-item {
  display: flex; flex-direction: column;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.sub-news-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(18, 102, 227, .28); }
.sub-news-cover { aspect-ratio: 16 / 9; overflow: hidden; background: var(--bg-2); }
.sub-news-cover img { width: 100%; height: 100%; object-fit: cover; }
.sub-news-cover-ph {
  background: linear-gradient(135deg, var(--bg-2) 0%, var(--bg-3) 100%);
}
.sub-news-body { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.sub-news-body h3 { margin-top: 10px; font-size: 17px; font-weight: 600; color: var(--ink); line-height: 1.5; }
.sub-news-body p { margin-top: 9px; font-size: 14px; line-height: 1.8; color: var(--ink-dim); flex: 1; }
.news-more { margin-top: 14px; font-size: 13px; color: var(--accent); font-weight: 500; }
.news-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; }
.news-tag {
  display: inline-block; padding: 3px 9px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent); font-size: 12px;
}
.news-date { color: var(--ink-dim); }

/* 资讯详情 */
.sub-article {
  max-width: 860px; margin: 0 auto;
  padding: 32px clamp(20px, 5vw, 48px);
}
.sub-article-meta { display: flex; gap: 12px; align-items: center; margin-bottom: 14px; }
.sub-article-title { font-size: clamp(23px, 3.4vw, 34px); font-weight: 700; line-height: 1.4; color: var(--ink); }
.sub-article-cover { margin-top: 24px; width: 100%; border-radius: var(--radius); border: 1px solid var(--line); }
.sub-article-body { margin-top: 26px; }
.sub-article-body p { font-size: 16px; line-height: 2; color: var(--ink-dim); }
.sub-article-foot {
  margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between;
  font-size: 14px; color: var(--ink-dim);
}
.sub-article-foot a { color: var(--accent); }

/* 联系方式 */
.sub-contact-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.sub-contact-item {
  padding: 20px 22px; background: var(--bg-2);
  border: 1px solid var(--line); border-radius: 14px;
}
.sub-label { display: block; font-size: 13px; color: var(--ink-dim); margin-bottom: 7px; }
.sub-value { font-size: 16px; font-weight: 500; color: var(--ink); word-break: break-all; }
a.sub-value { color: var(--accent); }

.sub-qr-list { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.sub-qr-card {
  padding: 20px; background: var(--bg-2); border-radius: 14px;
  border: 1px solid var(--line); text-align: center;
}
.sub-qr-card img, .sub-qr-card .qr-img {
  width: 100%; max-width: 128px; aspect-ratio: 1; object-fit: contain;
  margin: 0 auto 12px; border-radius: 8px; background: #fff;
}
.qr-ph { display: flex; align-items: center; justify-content: center; font-size: 13px; color: var(--ink-dim); }
.qr-name { display: block; font-size: 14px; font-weight: 500; color: var(--ink); }
.qr-desc { display: block; margin-top: 4px; font-size: 12px; color: var(--ink-dim); }

/* 表单 */
.sub-form { max-width: 720px; }
.form-field { display: block; margin-bottom: 16px; }
.form-label { display: block; margin-bottom: 7px; font-size: 14px; font-weight: 500; color: var(--ink); }
.form-label i { color: #e2483d; font-style: normal; }
.form-field input, .form-field textarea {
  width: 100%; padding: 12px 14px; font-size: 15px; font-family: inherit;
  color: var(--ink); background: var(--bg-2);
  border: 1px solid var(--line); border-radius: 10px; outline: none;
  transition: border-color .2s, box-shadow .2s; resize: vertical;
}
.form-field input:focus, .form-field textarea:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft);
}
.form-row { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.form-submit { margin-top: 6px; }
.form-tip { margin-top: 12px; font-size: 14px; color: var(--ink-dim); min-height: 20px; }
.form-tip.ok { color: #1a9e6c; }
.form-tip.err { color: #e2483d; }

/* CTA */
.sub-cta {
  max-width: 1240px; margin: 40px auto 0;
  padding: 40px clamp(20px, 5vw, 48px);
  background: linear-gradient(135deg, var(--accent-deep) 0%, var(--accent) 100%);
  border-radius: var(--radius); color: #fff; text-align: center;
}
.sub-cta h2 { font-size: clamp(20px, 2.6vw, 27px); font-weight: 700; }
.sub-cta p { margin-top: 12px; font-size: 15px; opacity: .92; }
.sub-cta p a { color: #fff; text-decoration: underline; }
.sub-cta .btn { margin-top: 22px; background: #fff; color: var(--accent); }
.sub-cta .btn:hover { background: var(--bg-2); }

/* 页脚 */
.sub-footer { background: var(--bg-2); border-top: 1px solid var(--line); margin-top: 60px; }
.sub-footer-inner {
  max-width: 1240px; margin: 0 auto;
  padding: 36px clamp(20px, 5vw, 48px);
  display: flex; flex-wrap: wrap; gap: 28px; justify-content: space-between; align-items: flex-start;
}
.sub-footer-brand { display: flex; align-items: center; gap: 12px; }
.sub-footer-brand img { height: 34px; width: auto; }
.sub-footer-brand strong { font-size: 15px; color: var(--ink); }
.sub-footer-brand p { margin-top: 4px; font-size: 13px; color: var(--ink-dim); }
.sub-footer-links { display: flex; flex-wrap: wrap; gap: 8px 20px; max-width: 640px; }
.sub-footer-links a { font-size: 14px; color: var(--ink-dim); }
.sub-footer-links a:hover { color: var(--accent); }
.sub-footer-bottom {
  max-width: 1240px; margin: 0 auto;
  padding: 16px clamp(20px, 5vw, 48px) 28px;
  border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  font-size: 13px; color: var(--ink-dim);
}
.icp-link { color: var(--ink-dim); }

/* ---------------- 响应式 ---------------- */
@media (max-width: 900px) {
  .sub-nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0; padding: 8px 20px 16px;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 28px rgba(20, 50, 110, .08);
    display: none;
  }
  .sub-nav-links.mobile-open { display: flex; }
  .sub-nav-links a { padding: 11px 4px; border-radius: 8px; }
  .sub-burger { display: flex; }
  .sub-nav-cta { margin-left: auto; }
  .sub-table-row { grid-template-columns: 1.3fr 1fr 1fr; font-size: 13px; }
  .sub-table-row > span { padding: 12px 12px; }
}
@media (max-width: 560px) {
  .sub-hero { padding: 32px 20px 26px; }
  .sub-stat-value { font-size: 32px; }
  .sub-article-body p { font-size: 15px; }
  .sub-footer-links { gap: 8px 14px; }
}