:root {
  --bg: #070d1a;
  --bg-soft: #0b1424;
  --panel: rgba(148, 197, 253, 0.06);
  --panel-border: rgba(148, 197, 253, 0.14);
  --text: #e6edf7;
  --text-dim: #9fb0c8;
  --accent: #38bdf8;
  --accent-2: #34d399;
  --grad: linear-gradient(90deg, var(--accent), var(--accent-2));
  --radius: 14px;
  --maxw: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

section { padding: 88px 0; }

h1 { font-size: clamp(30px, 4.6vw, 48px); line-height: 1.25; letter-spacing: 0.5px; }
h2 { font-size: clamp(24px, 3.2vw, 34px); line-height: 1.35; }
h3 { font-size: 18px; margin-bottom: 8px; }

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-sub { color: var(--text-dim); margin-top: 12px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary {
  background: var(--grad);
  color: #04121f;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(56, 189, 248, 0.35); }
.btn-ghost {
  border-color: var(--panel-border);
  color: var(--text);
  background: var(--panel);
}
.btn-ghost:hover { border-color: var(--accent); }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.6; cursor: wait; transform: none; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(7, 13, 26, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--panel-border);
}
.nav-row { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; }
.brand-mark {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--grad); color: #04121f;
  display: grid; place-items: center;
  font-size: 14px; font-weight: 800;
}
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { font-size: 14.5px; color: var(--text-dim); transition: color 0.15s; }
.nav-links a:hover { color: var(--text); }
.nav-cta { margin-left: 4px; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; margin-left: auto; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; border-radius: 2px; transition: 0.2s; }

/* ---------- hero ---------- */
.hero {
  padding: 96px 0 72px;
  background:
    radial-gradient(900px 420px at 15% -10%, rgba(56, 189, 248, 0.16), transparent 60%),
    radial-gradient(800px 420px at 90% 0%, rgba(52, 211, 153, 0.12), transparent 60%);
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; align-items: center; }
.hero-sub { color: var(--text-dim); font-size: 17px; margin-top: 20px; max-width: 520px; }
.hero-tags { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.hero-tags li {
  font-size: 13.5px; font-weight: 600;
  padding: 6px 14px; border-radius: 999px;
  background: var(--panel); border: 1px solid var(--panel-border);
  color: var(--accent);
}
.hero-actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }

/* ---------- window frame ---------- */
.window-frame {
  background: var(--bg-soft);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}
.window-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--panel-border);
  background: rgba(148, 197, 253, 0.04);
}
.window-bar i { width: 10px; height: 10px; border-radius: 50%; background: #2b3b55; }
.window-bar i:nth-child(1) { background: #f87171; }
.window-bar i:nth-child(2) { background: #fbbf24; }
.window-bar i:nth-child(3) { background: #34d399; }
.window-bar span { margin-left: 10px; font-size: 12.5px; color: var(--text-dim); }

/* ---------- stats ---------- */
.stats { padding: 0; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  margin-top: -28px; position: relative; z-index: 2;
}
.stat {
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: var(--radius); padding: 20px; text-align: center;
}
.stat strong {
  display: block; font-size: 28px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat span { font-size: 13.5px; color: var(--text-dim); }

/* ---------- features ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card {
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: var(--radius); padding: 26px 24px;
  transition: border-color 0.2s, transform 0.2s;
}
.feature-card:hover { border-color: rgba(56, 189, 248, 0.5); transform: translateY(-3px); }
.feature-card h3 { display: flex; align-items: center; gap: 8px; }
.feature-card h3::before {
  content: ""; width: 8px; height: 8px; border-radius: 3px; background: var(--grad); flex: none;
}
.feature-card p { color: var(--text-dim); font-size: 14.5px; }

/* ---------- flow ---------- */
.flow { background: var(--bg-soft); }
.flow-chain {
  display: flex; align-items: center; justify-content: center;
  gap: 10px; flex-wrap: wrap; margin-bottom: 44px;
}
.flow-step {
  padding: 12px 22px; border-radius: 999px;
  background: var(--panel); border: 1px solid var(--panel-border);
  font-weight: 600; font-size: 15px; white-space: nowrap;
}
.flow-arrow { color: var(--accent); font-size: 18px; }
.flow-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

/* ---------- showcase ---------- */
.showcase-group { margin-top: 44px; }
.showcase-group:first-of-type { margin-top: 0; }
.showcase-group-title {
  font-size: 17px; font-weight: 600; color: var(--text);
  margin-bottom: 20px; display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap;
}
.showcase-group-title em {
  font-style: normal; font-size: 13px; font-weight: 700; letter-spacing: 1px;
  color: var(--accent); border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: 999px; padding: 3px 12px; white-space: nowrap;
}
.showcase-group-title span { color: var(--text-dim); font-size: 14px; font-weight: 400; }
.showcase-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.showcase-item figcaption {
  display: grid; gap: 6px; padding: 14px 16px 16px;
  border-top: 1px solid var(--panel-border);
}
.showcase-item figcaption strong { font-size: 14.5px; color: var(--accent-2); }
.showcase-item figcaption span { font-size: 13px; color: var(--text-dim); line-height: 1.6; }
.showcase-more {
  margin-top: 52px; padding: 40px 40px 36px; text-align: center;
  background: linear-gradient(180deg, rgba(56, 189, 248, 0.07), rgba(52, 211, 153, 0.05));
  border: 1px solid var(--panel-border); border-radius: var(--radius);
}
.showcase-more .eyebrow { margin-bottom: 8px; }
.showcase-more h2 { font-size: 26px; }
.showcase-more .section-sub { max-width: 640px; margin-left: auto; margin-right: auto; }
.showcase-more-tags {
  list-style: none; display: flex; flex-wrap: wrap; justify-content: center;
  gap: 10px; max-width: 860px; margin: 26px auto 30px;
}
.showcase-more-tags li {
  font-size: 13px; color: var(--text-dim); padding: 6px 14px; border-radius: 999px;
  background: var(--bg-soft); border: 1px solid var(--panel-border);
}
.showcase-more-cta { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
@media (max-width: 900px) {
  .showcase-grid { grid-template-columns: 1fr; }
}

/* ---------- security ---------- */
.security { background: var(--bg-soft); }
.security-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: start; }
.check-list { list-style: none; display: grid; gap: 18px; }
.check-list li {
  padding-left: 34px; position: relative; color: var(--text-dim); font-size: 15.5px;
}
.check-list li strong { color: var(--text); }
.check-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 24px; height: 24px; border-radius: 7px;
  background: var(--grad); color: #04121f;
  display: grid; place-items: center; font-size: 13px; font-weight: 800;
}
.security-card {
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: var(--radius); padding: 26px;
}
.security-card-title { font-weight: 700; margin-bottom: 14px; }
.compare { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.compare th, .compare td { padding: 10px 8px; text-align: center; border-bottom: 1px solid var(--panel-border); }
.compare th:first-child, .compare td:first-child { text-align: left; color: var(--text-dim); }
.compare thead th { color: var(--text-dim); font-weight: 600; }
.compare tbody td:nth-child(2) { color: var(--accent-2); font-weight: 600; }
.compare tbody td:nth-child(3) { color: var(--text-dim); }
.compare tr:last-child td { border-bottom: 0; }

/* ---------- pricing ---------- */
.pricing-card {
  max-width: 860px; margin: 0 auto;
  display: grid; grid-template-columns: 1.4fr 1fr;
  background:
    linear-gradient(var(--bg-soft), var(--bg-soft)) padding-box,
    var(--grad) border-box;
  border: 1.5px solid transparent;
  border-radius: 18px; overflow: hidden;
}
.pricing-main { padding: 40px 44px; }
.pricing-name { font-size: 22px; font-weight: 800; }
.pricing-desc { color: var(--text-dim); margin: 6px 0 22px; font-size: 14.5px; }
.pricing-list { list-style: none; display: grid; gap: 12px; }
.pricing-list li { padding-left: 26px; position: relative; font-size: 15px; }
.pricing-list li::before {
  content: "✓"; position: absolute; left: 0; color: var(--accent-2); font-weight: 800;
}
.pricing-buy {
  padding: 40px 36px; text-align: center;
  background: rgba(148, 197, 253, 0.05);
  border-left: 1px solid var(--panel-border);
  display: flex; flex-direction: column; justify-content: center; gap: 10px;
}
.pricing-price-label { font-size: 13px; color: var(--text-dim); letter-spacing: 1px; }
.pricing-price {
  font-size: 32px; font-weight: 800;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.pricing-origin { font-size: 14px; color: var(--text-dim); margin-top: -6px; }
.pricing-origin s { text-decoration-color: rgba(215, 226, 242, .55); }
.pricing-buy .btn { margin-top: 8px; }
.pricing-note { font-size: 12.5px; color: var(--text-dim); }

/* ---------- faq ---------- */
.faq { background: var(--bg-soft); }
.faq-list { max-width: 780px; margin: 0 auto; display: grid; gap: 12px; }
.faq-list details {
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 12px; overflow: hidden;
}
.faq-list summary {
  cursor: pointer; padding: 18px 22px; font-weight: 600; font-size: 15.5px;
  list-style: none; position: relative; padding-right: 44px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%);
  color: var(--accent); font-size: 20px; font-weight: 400; transition: transform 0.2s;
}
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { padding: 0 22px 18px; color: var(--text-dim); font-size: 14.5px; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
.contact-info h2 { margin-bottom: 10px; }
.wechat-qr { margin-top: 28px; display: flex; align-items: center; gap: 22px; }
.wechat-qr img {
  width: 168px; height: auto; border-radius: 14px;
  background: #fff; padding: 10px; border: 1px solid var(--panel-border);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}
.wechat-qr p { font-size: 14.5px; color: var(--text-dim); }
.wechat-qr strong { display: block; margin-top: 8px; color: var(--text); font-size: 15.5px; letter-spacing: 0.3px; }
@media (max-width: 640px) {
  .wechat-qr { flex-direction: column; align-items: flex-start; }
}

.lead-form {
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 18px; padding: 32px;
  display: grid; gap: 18px;
}
.lead-form label { display: grid; gap: 8px; font-size: 14px; font-weight: 600; color: var(--text); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.lead-form input, .lead-form textarea {
  background: rgba(7, 13, 26, 0.6); border: 1px solid var(--panel-border);
  border-radius: 10px; padding: 12px 14px;
  color: var(--text); font-size: 15px; font-family: inherit;
  transition: border-color 0.15s;
  width: 100%;
}
.lead-form input:focus, .lead-form textarea:focus {
  outline: none; border-color: var(--accent);
}
.lead-form input.invalid, .lead-form textarea.invalid { border-color: #f87171; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-status { font-size: 14px; min-height: 22px; text-align: center; }
.form-status.ok { color: var(--accent-2); }
.form-status.err { color: #f87171; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--panel-border); padding: 20px 0; background: var(--bg-soft); }
.footer-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer p { color: var(--text-dim); font-size: 13.5px; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  section { padding: 64px 0; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-copy { text-align: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-tags, .hero-actions { justify-content: center; }
  .feature-grid, .flow-cards { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .security-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .pricing-card { grid-template-columns: 1fr; }
  .pricing-buy { border-left: 0; border-top: 1px solid var(--panel-border); }
}
@media (max-width: 640px) {
  .nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; gap: 0; padding: 8px 24px 16px;
    background: rgba(7, 13, 26, 0.97); border-bottom: 1px solid var(--panel-border);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid rgba(148, 197, 253, 0.08); }
  .nav-toggle { display: block; }
  .nav-cta { display: none; }
  .feature-grid, .flow-cards { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .lead-form { padding: 24px 20px; }
}

/* ================= 行业资讯（博客前台） ================= */
/* 内容不足一屏时把页脚顶到视口底部，避免大片空白挤在中间 */
.blog-body { min-height: 100vh; display: flex; flex-direction: column; }
.blog-body main { flex: 1 0 auto; }
.blog-wrap {margin: 0 auto; }
/* 面包屑：分隔符用伪元素，选中复制时不会把「›」带进剪贴板；末级是当前页，只出文字不套链接 */
.crumbs { font-size: 13px; color: var(--text-dim); margin-bottom: 16px; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; align-items: center; gap: 7px; }
.crumbs li { display: flex; align-items: center; gap: 7px; min-width: 0; }
.crumbs li + li::before { content: '›'; color: #52648a; }
.crumbs a { color: var(--text-dim); transition: color .15s; }
.crumbs a:hover { color: var(--accent); }
.crumbs li:last-child { color: #c9d7ea; }
.blog-list { display: grid; gap: 18px; margin-top: 36px; }
.blog-card { display: block; background: var(--panel); border: 1px solid var(--panel-border); border-radius: 14px; padding: 24px 26px; transition: border-color .15s, transform .15s; }
.blog-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.blog-card h3 { font-size: 18px; margin-bottom: 8px; color: var(--text); }
.blog-card p { color: var(--text-dim); font-size: 14.5px; line-height: 1.7; }
.blog-meta { display: flex; gap: 12px; align-items: center; margin-top: 12px; font-size: 12.5px; color: var(--text-dim); flex-wrap: wrap; }
.blog-tag { padding: 2px 10px; border-radius: 999px; border: 1px solid var(--panel-border); background: var(--bg-soft); }
a.blog-tag { color: var(--text-dim); transition: color .15s, border-color .15s; }
a.blog-tag:hover { color: var(--accent); border-color: var(--accent); }
.blog-tag .n { font-style: normal; opacity: .65; margin-left: 6px; font-size: 11.5px; }
/* 卡片改为 div + 内部链接，标签才可以在卡片里做独立链接（<a> 不能套 <a>） */
.blog-card-main { display: block; color: inherit; text-decoration: none; }
.blog-card-main:hover h3 { color: var(--accent); }
.blog-tagbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--panel-border); }
.blog-tagbar .cap { font-size: 13px; color: var(--text-dim); }
.blog-tagbar .more { font-size: 13px; color: var(--accent); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.tag-cloud a { padding: 8px 16px; border-radius: 999px; border: 1px solid var(--panel-border); background: var(--panel); color: var(--text); font-size: 14.5px; transition: border-color .15s, transform .15s; }
.tag-cloud a:hover { border-color: var(--accent); transform: translateY(-2px); }
.tag-cloud .n { font-style: normal; opacity: .6; margin-left: 7px; font-size: 12.5px; }
.article-head h1 { font-size: 30px; line-height: 1.35; margin: 8px 0 14px; }
.article-body { margin-top: 30px; font-size: 16px; line-height: 1.95; color: #d7e2f2; }
.article-body h2 { font-size: 22px; margin: 36px 0 14px; padding-left: 12px; border-left: 3px solid var(--accent); }
.article-body h3 { font-size: 18px; margin: 28px 0 10px; }
.article-body p { margin: 14px 0; }
.article-body a { color: var(--accent); }
.article-body ul, .article-body ol { margin: 14px 0 14px 26px; display: grid; gap: 6px; }
.article-body blockquote { margin: 18px 0; padding: 12px 18px; border-left: 3px solid var(--accent-2); background: var(--panel); border-radius: 0 10px 10px 0; color: var(--text-dim); }
.article-body code { background: var(--bg-soft); border: 1px solid var(--panel-border); border-radius: 6px; padding: 1px 6px; font-size: 14px; }
.article-body pre { background: var(--bg-soft); border: 1px solid var(--panel-border); border-radius: 12px; padding: 16px 18px; overflow-x: auto; margin: 16px 0; }
.article-body pre code { background: none; border: none; padding: 0; }
.article-body img { border-radius: 12px; margin: 16px 0; max-width: 100%; height: auto; }
.article-body hr { border: none; border-top: 1px solid var(--panel-border); margin: 28px 0; }
.article-body table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 15px; }
.article-body th, .article-body td { border: 1px solid var(--panel-border); padding: 8px 12px; }
.article-body th { background: var(--bg-soft); }
.article-body figure { margin: 18px 0; }
.article-body figcaption { font-size: 13px; color: var(--text-dim); margin-top: 6px; }
.article-cta { margin: 44px  0; padding: 26px; border-radius: 16px; background: linear-gradient(180deg, rgba(56,189,248,.08), rgba(52,211,153,.05)); border: 1px solid var(--panel-border); }
.article-cta h2 { font-size: 19px; margin-bottom: 8px; }
.article-cta p { color: var(--text-dim); font-size: 14.5px; margin-bottom: 16px; }
.blog-back { display: inline-block; margin-top: 26px; font-size: 14px; }
.blog-back a { color: var(--text-dim); }
.blog-back a:hover { color: var(--accent); }
/* 相关推荐：复用博客卡片，只把 .blog-list 的单列改成两列。必须写在 .blog-list 之后，同为单类选择器时靠后者胜出 */
.related { margin-top: 44px; }
.related-title { font-size: 20px; padding-left: 12px; border-left: 3px solid var(--accent); }
.related-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 18px; }
.related-grid .blog-card { padding: 18px 20px; }
.related-grid .blog-card h3 { font-size: 16.5px; }
.related-grid .blog-card p { font-size: 13.5px; line-height: 1.65; }
@media (max-width: 640px) { .related-grid { grid-template-columns: 1fr; } }
.blog-pager { display: flex; gap: 12px; align-items: center; justify-content: center; margin-top: 30px; }
.blog-pager a { color: var(--accent); font-size: 14px; border: 1px solid var(--panel-border); border-radius: 10px; padding: 8px 18px; }
.blog-pager a:hover { border-color: var(--accent); }
.blog-pager .now { font-size: 13px; color: var(--text-dim); }
.preview-bar { background: #b45309; color: #fff; text-align: center; padding: 10px 16px; font-size: 14px; }
.preview-bar a { color: #ffe4c4; text-decoration: underline; }

/* ================= 内容页通用组件（分类 / 演示 / 定价） ================= */
/* 这三个页共用 blog/layout，样式一律走 :root 变量，禁止内联 <style>：
   早先内联的 #fbfdff / #41506a / #0d7fb8 是亮色值，在暗色主题下会发灰发飘，且改一处要动三份文件。 */

/* 正文容器：博客列表吃满 container，这三个页收窄到 960 更耐读 */
.page-narrow { max-width: 960px; }
/* 标题与导语对齐 .article-head h1 的字号档，避免各页 H1 忽大忽小 */
.page-title { font-size: 30px; line-height: 1.35; margin: 6px 0 12px; }
.page-lead { font-size: 15px; line-height: 1.85; color: var(--text-dim); margin: 0 0 22px; }
/* 页内区块：统一上间距与二级标题尺寸 */
.page-sec { margin-top: 34px; }
.page-sec:nth-last-child(1){ margin-bottom: 34px;}
.page-sec > h2 { font-size: 20px; margin: 0 0 6px; }
.page-sec > p { font-size: 14px; color: var(--text-dim); line-height: 1.8; margin: 0 0 16px; }
/* 正文文字链接：.btn 是按钮语义（无下划线），这里排除掉 */
.page-narrow a:not(.btn) { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.muted { font-size: 13px; color: var(--text-dim); }

/* 面板：卡片式容器，清单 / 承诺 / 包含项都用它，保证边框圆角一致 */
.panel-box { border: 1px solid var(--panel-border); border-radius: 14px; padding: 20px 22px; background: var(--panel); }
.panel-box h3 { margin: 0 0 12px; font-size: 16px; }
.panel-box ul { margin: 0; padding-left: 20px; }
.panel-box li { font-size: 14px; line-height: 1.85; color: var(--text-dim); margin-bottom: 6px; }
.panel-box li b { color: var(--text); }
.panel-box.center { text-align: center; padding: 26px; }
.panel-box.center h3 { margin-bottom: 8px; }
.panel-box.center .cta-row { justify-content: center; }
/* 两列网格 + 小屏自动单列；tight 用于卡片内的小栅格 */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-2.tight { gap: 14px; }
@media (max-width: 720px) { .grid-2 { grid-template-columns: 1fr; } }

/* 静态 FAQ（dl 版）：首页 .faq-list 是 details 折叠，内容页直出 dl，两套互不干扰 */
.faq-dl { margin: 0; }
.faq-item { border-bottom: 1px solid var(--panel-border); padding: 14px 0; }
.faq-item dt { font-weight: 600; font-size: 15px; margin-bottom: 6px; color: var(--text); }
.faq-item dd { margin: 0; font-size: 14px; line-height: 1.8; color: var(--text-dim); }

/* 提示条：左边框 + 弱背景，用于「晚间时段可约」这类需要被看见的补充信息 */
.callout { margin-top: 18px; padding: 14px 16px; border-left: 3px solid var(--accent); background: var(--panel); border-radius: 0 10px 10px 0; font-size: 14px; line-height: 1.8; color: var(--text-dim); }
.callout b { color: var(--text); }

/* 表单字段：label 与控件分行。容器边框由外层 .panel-box 给，表单本身不再套第二层卡片 */
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.field input, .field select, .field textarea {
  width: 100%; padding: 10px 12px; font-size: 14px; font-family: inherit;
  border: 1px solid var(--panel-border); border-radius: 10px;
  background: rgba(7, 13, 26, 0.6); color: var(--text);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); }
.field input.invalid, .field select.invalid, .field textarea.invalid { border-color: #f87171; }
/* 数字控件的步进箭头默认画深色，暗底上会消失 */
.field input[type=number] { color-scheme: dark; }
.form-tip { font-size: 12px; color: var(--text-dim); line-height: 1.7; margin: 10px 0 0; }
/* 蜜罐字段：移出视口与读屏，但保留在表单内随请求一起提交 */
.hp-wrap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
/* 按钮并排：统一间距，不再逐个按钮写 margin-left */
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.fine-print { font-size: 12.5px; color: var(--text-dim); line-height: 1.75; margin-top: 12px; }

/* ---------- 支柱聚合页（/blog/category/<slug>） ---------- */
.pillar-lead { margin: 14px 0 22px; }
.pillar-lead p { margin: 0 0 12px; font-size: 15px; line-height: 1.85; color: var(--text-dim); }
.pillar-count { font-size: 13px; color: var(--text-dim); margin: 0 0 18px; }
.pillar-fit { margin-bottom: 26px; }
/* 相关专栏：胶囊链接复用 .tag-cloud 的视觉参数，外框单独给上分隔线 */
.pillar-rel { margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--panel-border); display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.pillar-rel a { padding: 6px 14px; border: 1px solid var(--panel-border); border-radius: 999px; font-size: 14px; color: var(--accent); text-decoration: none; }
.pillar-rel a:hover { border-color: var(--accent); background: var(--panel); }

/* ---------- 演示预约页（/demo） ---------- */
.demo-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 26px; align-items: start; }
@media (max-width: 860px) { .demo-grid { grid-template-columns: 1fr; } }
/* 左列两张卡叠放：间距只作用于这一列的后续卡片，不干扰右侧表单面板 */
.demo-col .panel-box + .panel-box { margin-top: 16px; }
.promise { border: 1px solid var(--panel-border); border-radius: 12px; padding: 14px 16px; background: var(--bg-soft); }
.promise b { display: block; font-size: 14px; margin-bottom: 6px; color: var(--text); }
.promise span { font-size: 13px; line-height: 1.75; color: var(--text-dim); }

/* ---------- 定价页（/price） ---------- */
.price-grid { margin-top: 24px; }
.price-hero {
  display: grid; grid-template-columns: auto 1fr; gap: 30px; align-items: center;
  border: 1px solid var(--panel-border); border-radius: 16px; padding: 26px 28px;
  background: linear-gradient(180deg, rgba(56, 189, 248, .08), rgba(7, 13, 26, 0));
}
@media (max-width: 720px) { .price-hero { grid-template-columns: 1fr; gap: 18px; } }
.price-figure { font-size: 46px; font-weight: 800; line-height: 1; color: var(--accent); }
.price-figure small { font-size: 18px; font-weight: 600; }
.price-origin { font-size: 14px; color: var(--text-dim); text-decoration: line-through; margin-top: 6px; }
.price-flag { display: inline-block; margin-top: 10px; padding: 4px 12px; border-radius: 999px; font-size: 13px; background: rgba(251, 191, 36, .12); border: 1px solid rgba(251, 191, 36, .3); color: #fbbf24; }
.price-hero p { margin: 0; font-size: 15px; line-height: 1.9; color: var(--text-dim); }
/* 五年成本计算器：.panel-box 提供边框圆角，这里只换底色与内部排版 */
.calc { background: var(--bg-soft); }
.calc-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 14px; }
.calc-row label { font-size: 14px; color: var(--text); }
.calc-row input {
  width: 160px; padding: 10px 12px; font-size: 14px; font-family: inherit; color-scheme: dark;
  border: 1px solid var(--panel-border); border-radius: 10px; background: rgba(7, 13, 26, .6); color: var(--text);
}
.calc-row input:focus { outline: none; border-color: var(--accent); }
.calc-row input.seats { width: 100px; }
.calc-out { border-top: 1px dashed var(--panel-border); padding-top: 14px; font-size: 15px; line-height: 2; color: var(--text-dim); }
.calc-out b { color: var(--text); }
.calc-out .save { color: var(--accent-2); font-size: 17px; font-weight: 700; }
/* 对比表直接复用首页 .compare：第 2 列为强调色、第 3 列弱化，与「买断 vs 订阅」的列次序正好对上 */

/* ================= 后台管理 ================= */
body.adm { background: #f3f5f9; color: #1c2430; font: 15px/1.6 system-ui, "Microsoft YaHei", sans-serif; }
.adm a { color: #2563eb; text-decoration: none; }
.adm-wrap {  margin: 0 auto; padding: 0 20px 60px; }
.adm-head { background: #0f1c33; color: #e6eefb; padding: 14px 0; margin-bottom: 28px; }
.adm-head .adm-wrap { display: flex; align-items: center; flex-wrap: wrap; gap: 10px 18px; padding-bottom: 0; }
.adm-head a { white-space: nowrap; }
.adm-brand { color: #fff; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.adm-brand svg { width: 34px; height: 34px; flex: none; }
.adm-brand .m { background: #2563eb; border-radius: 8px; width: 28px; height: 28px; display: inline-flex; align-items: center; justify-content: center; }
.adm-nav { display: flex; flex-wrap: wrap; gap: 25px; flex: 1; }
.adm-nav a { color: #b7c5dd; font-size: 14px; }
.adm-nav a.on, .adm-nav a:hover { color: #fff; }
.adm-panel { background: #fff; border: 1px solid #e2e8f0; border-radius: 14px; padding: 22px 24px; margin-bottom: 22px; }
.adm-panel-head { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 12px; }
.adm-panel-head .adm-title { margin: 0; flex: 1; }
.adm-table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.adm-title { font-size: 20px; font-weight: 700; margin: 0 0 14px; }
.adm-sub { color: #64748b; font-size: 13.5px; margin: 0 0 14px; }
.adm-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.adm-table th { text-align: left; color: #64748b; font-weight: 500; padding: 8px 10px; border: 1px solid #e2e8f0; white-space: nowrap; }
.adm-table td { padding: 7px; border: 1px solid #eef2f7; vertical-align: top; }
/* .adm-table tr:last-child td { border-bottom: none; } */
.adm .badge { display: inline-block; border-radius: 999px; font-size: 12px; padding: 2px 7px; }
.adm .badge.pub { background: #dcfce7; color: #15803d; }
.adm .badge.draft { background: #fef3c7; color: #b45309; }
.adm .badge.sched { background: #eef2ff; color: #4338ca; }
/* 批量导入结果标记 */
.adm .badge.ok { background: #dcfce7; color: #15803d; }
.adm .badge.upd { background: #e0f2fe; color: #0369a1; }
.adm .badge.skip { background: #eef2f7; color: #475569; }
.adm .badge.fail { background: #fef2f2; color: #b91c1c; }
.adm .btn { display: inline-block; border: 1px solid #cbd5e1; background: #fff; color: #1c2430; border-radius: 9px; padding: 7px 16px; font-size: 13.5px; cursor: pointer; }
.adm .btn:hover { border-color: #94a3b8; }
.adm .btn.primary { background: #2563eb; border-color: #2563eb; color: #fff; }
.adm .btn.primary:hover { background: #1d4ed7; }
.adm .btn.danger { color: #dc2626; border-color: #fecaca; }
.adm .btn.danger:hover { background: #fef2f2; }
.adm .btn.sm { padding: 4px 7px; font-size: 12px; }
.adm-row-actions { display: flex; gap: 8px; }
.adm-form label { display: block; margin-bottom: 14px; font-size: 13.5px; color: #475569; }
.adm-form input[type=text], .adm-form input[type=password], .adm-form select, .adm-form textarea {
  display: block; width: 100%; margin-top: 6px; padding: 9px 12px; font-size: 14px;
  border: 1px solid #cbd5e1; border-radius: 9px; background: #fff; color: #1c2430; box-sizing: border-box;
}
.adm-form textarea { min-height: 260px; font-family: ui-monospace, Consolas, monospace; line-height: 1.7; }
.adm-form input[type=file] {
  display: block; width: 100%; margin-top: 6px; padding: 8px 10px; font-size: 14px;
  border: 1px dashed #cbd5e1; border-radius: 9px; background: #f8fafc; color: #1c2430; box-sizing: border-box;
}
/* 批量导入页的字段/语法说明列表 */
.import-doc { margin: 0 0 16px; padding-left: 22px; color: #475569; font-size: 13.5px; line-height: 1.85; }
.import-doc li + li { margin-top: 4px; }
.import-doc code { background: #f1f5f9; border-radius: 4px; padding: 1px 5px; font-size: 12.5px; color: #1c2430; }
.adm-form .two { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
@media (max-width: 760px) { .adm-form .two { grid-template-columns: 1fr; } }
/* 富文本正文（wangEditor 5） */
.adm-field { margin-bottom: 14px; }
.adm-cap { display: block; font-size: 13.5px; color: #475569; }
.adm-editor { margin-top: 6px; border: 1px solid #cbd5e1; border-radius: 9px; background: #fff; overflow: hidden; }
.adm-editor #js-toolbar { border-bottom: 1px solid #e2e8f0; }
.adm-editor #js-editor { height: 460px; }
@media (max-width: 760px) { .adm-editor #js-editor { height: 360px; } }
/* hidden 属性会被上面的 display:block 覆盖，需显式隐藏正文回填域 */
.adm-form textarea[hidden] { display: none; }
.adm-actions { display: flex; gap: 10px; margin-top: 6px; }
.adm .notice { border-radius: 10px; padding: 10px 14px; font-size: 14px; margin-bottom: 16px; }
.adm .notice.ok { background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.adm .notice.err { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.adm .notice.warn { background: #fffbeb; color: #b45309; border: 1px solid #fde68a; }
.adm-count { font-size: 13px; color: #64748b; margin-bottom: 10px;padding-bottom: 10px;border-bottom: #fafafa;}
.adm-filter { display: flex; flex-wrap: wrap; gap: 12px 14px; align-items: flex-end; margin-bottom: 16px; }
/* 宽屏排一行：flex-basis 给足宽度让它横向铺开，容器放不下时 flex-wrap 自动换行，不再单独写小屏断点 */
.adm-filter label { flex: 1 1 210px; min-width: 165px; margin-bottom: 0; }
.adm-filter input[type=text], .adm-filter select { width: 100%; min-width: 0; }
.adm-filter-btns { flex: 0 0 auto; display: flex; gap: 10px; }
.adm-pager { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 16px; padding-top: 14px; border-top: 1px solid #e2e8f0; }
.adm-pager-info { font-size: 13px; color: #64748b; }
.adm .btn.sm.disabled { opacity: .4; pointer-events: none; cursor: default; }
.adm-tags-cell { max-width: 240px; }
.tagchip { display: inline-block; border-radius: 999px; font-size: 12px; padding: 2px 9px; margin: 0 6px 6px 0; background: #eef2f7; color: #475569; white-space: nowrap; }
.adm-msg-cell { max-width: 420px; white-space: pre-wrap; word-break: break-all; }
.adm.login-body { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: #0f1c33; }
.adm .login-card { width: 380px; max-width: 92vw; background: #fff; border-radius: 16px; padding: 30px 28px; }
.adm .login-card h1 { font-size: 20px; margin: 0 0 4px; }
.adm .login-card .sub { color: #64748b; font-size: 13px; margin: 0 0 20px; }
/* 小屏适配：链接不逐字断行、导航整行换到下方、宽表改为横向滚动 */
@media (max-width: 760px) {
  .adm-wrap { padding: 0 14px 44px; }
  .adm-head { padding: 10px 0; margin-bottom: 18px; }
  .adm-head .adm-wrap { gap: 8px 14px; }
  .adm-nav { order: 3; flex: 1 1 100%; gap: 16px; }
  .adm-nav a { font-size: 15px; }
  .adm-panel { padding: 16px 14px; border-radius: 12px; }
  .adm-title { font-size: 18px; }
  .adm-table-scroll .adm-table { min-width: 760px; font-size: 13.5px; }
  .adm-actions { flex-wrap: wrap; }
  .adm-msg-cell { max-width: 300px; }
}