/* 环球客源通 · 品类投放链路页共用样式
   设计令牌与 site.html 保持一致，供 /industry-*.html 使用。
   本文件为静态资源，构建时由 public/ 原样拷贝进 dist/。 */

:root {
  --brand: #863bff;
  --brand-2: #4f7cff;
  --brand-soft: #f3ecff;
  --ink: #12101a;
  --ink-2: #3d3a4d;
  --ink-3: #6f6b80;
  --line: #e8e6f0;
  --bg: #ffffff;
  --bg-2: #f7f6fb;
  --radius: 16px;
  --maxw: 1140px;
  --shadow: 0 10px 30px rgba(28, 20, 60, 0.08);
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--brand);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
img {
  max-width: 100%;
  display: block;
}
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 22px;
}
.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

/* ── 导航 ───────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
}
.nav-in {
  display: flex;
  align-items: center;
  gap: 22px;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--ink);
}
.brand:hover {
  text-decoration: none;
}
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  flex: none;
}
.brand-name {
  font-size: 17px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
}
.nav-links a {
  color: var(--ink-2);
  font-size: 14.5px;
}
.nav-links a:hover {
  color: var(--brand);
  text-decoration: none;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  padding: 12px 22px;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn:hover {
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff;
  box-shadow: 0 8px 20px rgba(134, 59, 255, 0.28);
}
.btn-ghost {
  border-color: var(--line);
  color: var(--ink);
  background: #fff;
}
.btn-ghost:hover {
  border-color: var(--brand);
  color: var(--brand);
}
.btn-sm {
  padding: 9px 16px;
  font-size: 14px;
  border-radius: 9px;
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ── 页头 ───────────────────────────────── */
.head {
  background: #0b0a12;
  color: #fff;
  padding: 56px 0 52px;
  background-image:
    radial-gradient(
      48% 62% at 18% 20%,
      rgba(134, 59, 255, 0.42),
      transparent 62%
    ),
    radial-gradient(
      44% 58% at 82% 30%,
      rgba(79, 124, 255, 0.34),
      transparent 64%
    );
}
.head .crumbs {
  font-size: 13.5px;
  color: #9c97b5;
  margin: 0 0 18px;
}
.head .crumbs a {
  color: #c8c4d8;
}
.head .crumbs span {
  color: #6f6b80;
  margin: 0 8px;
}
.head h1 {
  font-size: clamp(26px, 4.4vw, 42px);
  line-height: 1.22;
  letter-spacing: -0.025em;
  margin: 0;
  font-weight: 800;
  max-width: 26em;
}
.head .lead {
  margin: 18px 0 0;
  font-size: clamp(15px, 1.8vw, 17.5px);
  color: #c8c4d8;
  max-width: 52em;
}
.head .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}
.chip {
  font-size: 13px;
  font-weight: 600;
  padding: 6px 13px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #e9e4ff;
}

/* ── 正文 ───────────────────────────────── */
.doc {
  max-width: 860px;
  margin: 0 auto;
  padding: 48px 0 8px;
}
.doc h2 {
  font-size: clamp(21px, 2.6vw, 27px);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 46px 0 0;
  padding-top: 6px;
}
.doc h2:first-of-type {
  margin-top: 8px;
}
.doc h3 {
  font-size: 17.5px;
  margin: 28px 0 0;
  letter-spacing: -0.01em;
}
.doc p {
  margin: 14px 0 0;
  color: var(--ink-2);
}
.doc ul,
.doc ol {
  margin: 14px 0 0;
  padding-left: 22px;
  color: var(--ink-2);
}
.doc li {
  margin: 8px 0;
}
.doc li b,
.doc p b {
  color: var(--ink);
}
.doc code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13.5px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1px 6px;
  color: #5a2ec7;
}

/* 口径说明：区分事实 / 推论 / 未验证 */
.note {
  margin: 28px 0 0;
  padding: 16px 18px;
  border-radius: 12px;
  background: var(--brand-soft);
  border: 1px solid #e2d6ff;
  color: #43267f;
  font-size: 14.5px;
}
.note b {
  color: #2f1a5e;
}
.note-warn {
  background: #fff7ea;
  border-color: #ffe0b0;
  color: #7a4a06;
}
.note-warn b {
  color: #5c3604;
}

/* 三层受众 */
.layer {
  margin: 18px 0 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}
.layer .layer-h {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.layer .layer-no {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  border-radius: 999px;
  padding: 4px 11px;
}
.layer .layer-h strong {
  font-size: 16.5px;
}
.layer .layer-h em {
  font-style: normal;
  color: var(--ink-3);
  font-size: 13.5px;
}
.layer p {
  margin: 10px 0 0;
  font-size: 15px;
}
.kw {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 12px;
}
.kw span {
  font-size: 13px;
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  color: var(--ink-2);
}

/* 配方 */
.recipe {
  margin: 20px 0 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid #d9ccff;
  background: #fbf9ff;
}
.recipe-h {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 10px 18px;
  background: #efe7ff;
  color: #43267f;
  border-bottom: 1px solid #d9ccff;
}
.recipe-b {
  padding: 16px 18px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
  color: #2f1a5e;
  word-break: break-word;
}
.recipe-b + .recipe-b {
  border-top: 1px solid #e6dcff;
}

/* 表格 */
.table-scroll {
  overflow-x: auto;
  margin: 20px 0 0;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  min-width: 560px;
}
th,
td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th {
  background: var(--bg-2);
  font-size: 13.5px;
  color: var(--ink);
  font-weight: 700;
}
td {
  color: var(--ink-2);
}

/* FAQ */
.faq {
  margin: 20px 0 0;
}
.faq details {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 14px 18px;
  margin: 10px 0;
}
.faq summary {
  font-weight: 600;
  cursor: pointer;
  font-size: 15.5px;
  color: var(--ink);
}
.faq details p {
  margin: 10px 0 0;
  font-size: 15px;
}

/* CTA */
.cta {
  margin: 48px 0 0;
  padding: 28px;
  border-radius: var(--radius);
  background: #0b0a12;
  color: #fff;
  background-image: radial-gradient(
    60% 90% at 20% 10%,
    rgba(134, 59, 255, 0.42),
    transparent 62%
  );
}
.cta h2 {
  margin: 0;
  color: #fff;
  font-size: clamp(19px, 2.4vw, 24px);
}
.cta p {
  color: #c8c4d8;
  margin: 12px 0 0;
}
.cta .cta-b {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.cta .btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
}
.cta .price {
  font-size: 13.5px;
  color: #9c97b5;
  margin: 16px 0 0;
}

/* 页脚 */
.foot {
  margin-top: 72px;
  border-top: 1px solid var(--line);
  background: var(--bg-2);
  padding: 44px 0 0;
}
.foot-in {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 32px;
}
.foot-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}
.foot p {
  color: var(--ink-2);
  font-size: 14px;
  margin: 14px 0 0;
}
.foot h4 {
  font-size: 13.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 12px;
}
.foot a {
  display: block;
  font-size: 14.5px;
  color: var(--ink-2);
  margin: 7px 0;
}
.foot a:hover {
  color: var(--brand);
}
.copyright {
  margin-top: 32px;
  border-top: 1px solid var(--line);
  padding: 16px 0;
  font-size: 13px;
  color: var(--ink-3);
}

@media (max-width: 820px) {
  .foot-in {
    grid-template-columns: 1fr;
    gap: 26px;
  }
}
@media (max-width: 680px) {
  .nav-links {
    display: none;
  }
  .head {
    padding: 40px 0 38px;
  }
  .doc {
    padding: 34px 0 4px;
  }
  .cta {
    padding: 22px;
  }
}

/* 博客（frontend/public/blog/，由 _blog_build.py 生成） */
.post-list {
  list-style: none;
  padding-left: 0;
  margin: 22px 0 0;
}
.post-list li {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
  padding: 20px 22px;
  margin: 0 0 16px;
}
.post-list li h3 {
  margin: 0;
  font-size: 18.5px;
  line-height: 1.4;
}
.post-list li h3 a {
  color: var(--ink);
}
.post-list li h3 a:hover {
  color: var(--brand);
}
.post-list li p {
  margin: 8px 0 0;
  font-size: 15px;
}
.post-list li .meta {
  font-size: 13px;
  color: var(--ink-3);
  margin: 6px 0 0;
}
.post-list .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 0;
}
/* .chip 原本为深色头部设计（白色半透明），在白色卡片里需换成浅底品牌色 */
.post-list .chip {
  background: var(--brand-soft);
  border-color: #e2d6ff;
  color: #5a2ec7;
}

/* 正文引用块：用于「我们的做法」这类口径说明 */
.doc blockquote {
  margin: 20px 0 0;
  padding: 14px 18px;
  border-left: 3px solid var(--brand);
  border-radius: 0 12px 12px 0;
  background: var(--brand-soft);
  color: #43267f;
}
.doc blockquote p {
  margin: 0;
  color: #43267f;
}
.doc blockquote p + p {
  margin: 10px 0 0;
}

/* 列表页头部的小字 meta */
.doc .meta {
  font-size: 13.5px;
  color: var(--ink-3);
}

/* 文章内图片、表格与长链接不撑破版面 */
.doc img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
}
.doc a {
  word-break: break-word;
}