/* ══════════════════════════════════════════
   Knowlyr v4 — 轻奢 · 极简 · 浅色
   ══════════════════════════════════════════ */

/* ── Reset & Variables ── */
:root {
  --accent: #0d6b5e;
  --accent-light: rgba(13,107,94,0.06);
  --accent-border: rgba(13,107,94,0.18);
  --text: #1a1a1a;
  --text-secondary: #555;
  --text-tertiary: #999;
  --bg: #fff;
  --bg-soft: #f8f8f6;
  --border: #e6e6e3;
  --border-light: #f0f0ed;
  --border-hover: #ccc;
  --tag-hover: #bbb;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.03);
  --nav-bg: rgba(255,255,255,0.88);
  --hover-bg: rgba(0,0,0,0.05);
  --indigo: #6366f1;
  --indigo-light: rgba(99,102,241,0.08);
  --orange: #ea580c;
  --orange-light: rgba(234,88,12,0.08);
  --red: #dc2626;
  --red-light: rgba(239,68,68,0.1);
  --radius: 8px;
  --font-mono: "SF Mono", "Fira Code", "Cascadia Code", monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.75;
}

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

/* ── 容器 ── */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

@media (min-width: 768px) {
  .container { padding: 0 40px; }
}

/* ══ 导航栏 — logo + 胶囊并排 ══ */
.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 20px 24px 0;
}

.nav-logo { display: flex; align-items: center; flex: 1; }
.nav-right { flex: 1; display: flex; align-items: center; justify-content: flex-end; }
.nav-logo img { height: 36px; display: block; }

.nav-pill {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 6px 8px;
  background: var(--nav-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border);
  border-radius: 100px;
  box-shadow: var(--shadow-sm);
  pointer-events: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  white-space: nowrap;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-tertiary);
  padding: 7px 16px;
  border-radius: 100px;
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
}
.nav-links a:hover {
  color: var(--text);
  background: var(--hover-bg);
}
.nav-links a.active {
  color: var(--accent);
  background: var(--accent-light);
}

@media (max-width: 640px) {
  .nav {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: 10px 0;
    padding: 16px 12px 0;
    align-items: center;
  }
  .nav-logo { grid-column: 1; grid-row: 1; }
  .nav-logo img { height: 20px; }
  .nav-pill {
    grid-column: 1 / -1;
    grid-row: 2;
    padding: 4px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .nav-pill::-webkit-scrollbar { display: none; }
  .nav-links a { font-size: 12px; padding: 6px 8px; }
  .nav-right { grid-column: 2; grid-row: 1; }
}

/* ══ Hero ══ */
.hero {
  padding: 320px 0 300px;
  text-align: center;
}

.hero-title {
  font-size: clamp(36px, 6vw, 68px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.hero-title span { color: var(--accent); }

.hero-rule {
  width: 40px;
  height: 1px;
  background: var(--border);
  margin: 40px auto;
}

.hero-sub {
  font-size: clamp(14px, 1.6vw, 16px);
  color: var(--text-tertiary);
  letter-spacing: 0.08em;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  line-height: 2;
}

/* ══ 数据指标 ══ */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats-item {
  text-align: center;
  padding: 44px 16px;
}

.stats-item:not(:last-child) {
  border-right: 1px solid var(--border-light);
}

.stats-number {
  font-family: var(--font-mono);
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
}

.stats-label {
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
}

@media (max-width: 640px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stats-item:nth-child(2) { border-right: none; }
  .stats-item:nth-child(1), .stats-item:nth-child(2) {
    border-bottom: 1px solid var(--border-light);
  }
}

/* ══ 合作伙伴 ══ */
.partners {
  padding: 52px 0;
  text-align: center;
}

.partners-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 44px;
}

.partners-logos img {
  height: 26px;
  width: auto;
  opacity: 0.3;
  filter: grayscale(100%);
  transition: all 0.3s;
}
.partners-logos img:hover { opacity: 0.8; filter: grayscale(0%); }

@media (min-width: 768px) {
  .partners-logos img { height: 30px; }
  .partners-logos { gap: 56px; }
}

/* ══ Section ══ */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-soft); }

.section-heading-center {
  text-align: center;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.section-desc-center {
  text-align: center;
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto 52px;
}

/* ══ 卡片 ══ */
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.25s;
}
/* 统一卡片 hover 效果 */
.card:hover, .tier-card:hover, .case-card:hover,
.loop-card:hover, .role-card:hover, .radar-finding:hover,
.team-card:hover { border-color: var(--border-hover); }

.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 768px) {
  .cards-grid-3 { grid-template-columns: repeat(3, 1fr); }
}

/* ══ Tier 卡片 ══ */
.tier-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color 0.3s;
}

.tier-card--active {
  border-color: var(--accent-border);
  background: var(--accent-light);
}

.tier-badge {
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.tier-badge--1 { background: #f3f3f0; color: #888; }
.tier-badge--2 { background: var(--accent-light); color: var(--accent); }
.tier-badge--3 { background: var(--indigo-light); color: var(--indigo); }

.tier-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
}

.tier-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.tier-list { list-style: none; }
.tier-list li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.85;
  padding-left: 14px;
  position: relative;
}
.tier-list li::before, .case-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--border);
}
.tier-list li + li, .case-list li + li { margin-top: 2px; }

/* ══ Case 卡片 ══ */
.case-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.25s;
}

.case-badge {
  display: inline-flex;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-light);
  padding: 3px 10px;
  border-radius: 4px;
}

.case-title {
  font-size: 22px;
  font-weight: 600;
  margin-top: 12px;
  margin-bottom: 12px;
}

.case-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 768px) {
  .case-grid { grid-template-columns: 1fr 1fr; }
}

.case-list {
  list-style: none;
  padding: 0;
}
.case-list li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.85;
  padding-left: 14px;
  position: relative;
}
/* ══ 案例详情 ══ */
.case-stack { display: grid; gap: 20px; }
.case-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.case-section-title {
  margin-top: 20px;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}
.case-subsection {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
}

/* ══ 序号卡片 ══ */
.num-card { position: relative; }
.num-label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

.mv-title { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.mv-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.8; }

/* ══ 标签 ══ */
.tag-group-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-tertiary);
  letter-spacing: 0.5px;
  margin: 28px 0 10px;
}
.tag-group-title:first-of-type { margin-top: 0; }

.tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.tag {
  display: inline-flex;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 400;
  color: var(--text-secondary);
  background: var(--bg);
  border: 1px solid var(--border);
  transition: border-color 0.2s, color 0.2s;
}
.tag:hover { border-color: var(--tag-hover); color: var(--text); }

.tag-accent {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-light);
}
.tag-accent:hover { border-color: var(--accent); }

/* ══ 对比区块 ══ */
.compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 768px) {
  .compare { grid-template-columns: 1fr 1fr; gap: 20px; }
}

.compare-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}
.compare-card--muted { background: var(--bg-soft); }
.compare-card--accent {
  border-color: var(--accent-border);
  background: var(--accent-light);
}

.compare-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}
.compare-card--accent .compare-label { color: var(--accent); }

.compare-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.compare-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ══ 客户区块（首页） ══ */
.clients-block {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.clients-cases {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.clients-cases--3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.clients-case {
  padding: 36px 32px;
  border-left: 1px solid var(--border);
}
.clients-case:first-child {
  border-left: none;
}

.clients-case-name {
  font-size: 18px;
  font-weight: 600;
  margin-top: 14px;
  margin-bottom: 6px;
}

.clients-case-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.clients-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  padding: 28px 32px;
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}
.clients-logos img {
  height: 28px;
  width: auto;
  opacity: 0.3;
  filter: grayscale(100%);
}

@media (max-width: 640px) {
  .clients-cases, .clients-cases--3 { grid-template-columns: 1fr; }
  .clients-case { border-left: none; border-top: 1px solid var(--border); }
  .clients-case:first-child { border-top: none; }
  .clients-logos { gap: 24px; flex-wrap: wrap; }
  .clients-logos img { height: 22px; }
}

@media (min-width: 768px) {
  .clients-case { padding: 40px 40px; }
  .clients-logos { gap: 56px; }
  .clients-logos img { height: 32px; }
}

/* ══ 页脚 ══ */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
}
.footer-inner {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.footer-brand img {
  height: 28px;
  width: auto;
  flex-shrink: 0;
  display: block;
}
.footer-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 10px;
  color: var(--text-tertiary);
  text-align: left;
}
.footer-text a {
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-text a:hover { color: var(--accent); }
.footer-sep { margin: 0 5px; opacity: 0.3; }
@media (max-width: 640px) {
  .footer-inner { flex-direction: column; gap: 8px; }
  .footer-brand img { height: 22px; }
  .footer-text { text-align: center; }
}

/* ══ 基础设施页 — 前提对比 ══ */
.infra-premise {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}
.infra-premise-item {
  flex: 0 1 320px;
  padding: 28px 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  text-align: center;
}
.infra-premise-item--accent {
  border-color: var(--accent-border);
  background: var(--accent-light);
}
.infra-premise-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}
.infra-premise-item--accent .infra-premise-label { color: var(--accent); }
.infra-premise-text {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
}
.infra-premise-item--accent .infra-premise-text { color: var(--text); }
.infra-premise-arrow {
  font-size: 20px;
  color: var(--text-tertiary);
  flex-shrink: 0;
}
@media (max-width: 640px) {
  .infra-premise { flex-direction: column; gap: 12px; }
  .infra-premise-arrow { transform: rotate(90deg); }
  .infra-premise-item { flex: auto; width: 100%; }
}

/* ══ 基础设施页 — 六层闭环 ══ */
.loop-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 768px) {
  .loop-grid { grid-template-columns: 1fr; }
}

.loop-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px 24px;
  transition: border-color 0.25s;
}
.loop-card--accent {
  border-color: var(--accent-border);
  background: var(--accent-light);
}

.loop-index {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
}
.loop-card--accent .loop-index { color: var(--accent); }

.loop-name {
  font-size: 20px;
  font-weight: 700;
  margin-top: 4px;
  letter-spacing: -0.01em;
}

.loop-zh {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

.loop-roles {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.loop-role {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.loop-role-tag {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: 3px;
  margin-top: 2px;
}
.loop-role-tag--agent {
  background: var(--indigo-light);
  color: var(--indigo);
}
.loop-role-tag--human {
  background: var(--orange-light);
  color: var(--orange);
}

/* 闭环回流指示 */
.loop-return {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
}
.loop-return-line {
  flex: 1;
  height: 1px;
  background: var(--border);
}
.loop-return-text {
  font-size: 13px;
  color: var(--text-tertiary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* ══ 基础设施页 — MCP Native ══ */
.mcp-headline {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 12px;
  margin-bottom: 16px;
}
.mcp-number {
  font-family: var(--font-mono);
  font-size: clamp(48px, 6vw, 72px);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
}
.mcp-unit {
  font-family: var(--font-mono);
  font-size: clamp(16px, 2vw, 22px);
  font-weight: 500;
  color: var(--text-tertiary);
  letter-spacing: 0.02em;
}
.mcp-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 12px;
}
.mcp-breakdown {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
  letter-spacing: 0.02em;
  margin-bottom: 32px;
}
.mcp-code {
  display: inline-block;
  text-align: left;
  background: #1a1a1a;
  border-radius: var(--radius);
  padding: 24px 32px;
  max-width: 620px;
  width: 100%;
  overflow-x: auto;
}
.mcp-code code {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  color: #e0e0e0;
  white-space: pre;
}
.mcp-comment { color: #6a737d; }
@media (max-width: 640px) {
  .mcp-code { padding: 16px 20px; }
  .mcp-code code { font-size: 11px; }
}

/* ══ 基础设施页 — 开源入口 ══ */
.infra-oss-note {
  font-size: 13px;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}
.infra-oss-link {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.infra-oss-link:hover { color: var(--accent); }

/* ══ 蚁聚社区 — 角色卡片 ══ */
.role-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px 24px;
  transition: border-color 0.25s;
}
.role-card--accent {
  border-color: var(--accent-border);
  background: var(--accent-light);
}

.role-tier {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}
.role-card--accent .role-tier { color: var(--accent); }

.role-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.role-zh {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 2px;
}

.role-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-light);
}
.role-card--accent .role-desc { border-color: var(--accent-border); }

.role-tasks {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.role-task {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.role-example {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
  font-size: 12px;
  color: var(--text-tertiary);
  letter-spacing: 0.02em;
}
.role-card--accent .role-example { border-color: var(--accent-border); }

/* ══ Radar Brief — 期刊元信息 ══ */
.radar-issue-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
}
.radar-issue-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--accent-light);
  color: var(--accent);
}
.radar-issue-date {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ══ Radar Brief — 关键发现卡片 ══ */
.radar-finding {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: border-color 0.25s;
}

.radar-finding-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 10px;
}
.radar-finding-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
}
.radar-finding-detail {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 10px;
}
.radar-finding-signal {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.02em;
  line-height: 1.6;
}

/* ══ Radar Brief — 信号强度标签 ══ */
.radar-signal {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 3px;
  margin-top: 3px;
}
.radar-signal--p0 { background: var(--red-light); color: var(--red); }
.radar-signal--p1 { background: var(--orange-light); color: var(--orange); }
.radar-signal--p2 { background: var(--indigo-light); color: var(--indigo); }

/* ══ Radar Brief — 需求信号表格 ══ */
.radar-demand-grid {
  max-width: 720px;
  margin: 0 auto;
}
.radar-demand-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-light);
  font-size: 14px;
  color: var(--text-secondary);
}
.radar-demand-row--header {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
}
.radar-demand-row:last-child { border-bottom: none; }
@media (max-width: 640px) {
  .radar-demand-row { grid-template-columns: 1fr auto; font-size: 13px; }
  .radar-demand-row span:last-child { display: none; }
  .radar-demand-row--header span:last-child { display: none; }
}

/* ══ Radar Brief — 数据表格 ══ */
.radar-table-wrap {
  overflow-x: auto;
  max-width: 640px;
  margin: 0 auto;
}
.radar-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.radar-table th {
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.radar-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
}
.radar-table tbody tr:last-child td { border-bottom: none; }
.radar-growth {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent);
}

/* ══ Radar Brief — DataRecipe 深度分析 ══ */
.radar-recipe {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.radar-recipe-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 28px 28px 20px;
  border-bottom: 1px solid var(--border-light);
}
.radar-recipe-name {
  font-size: 20px;
  font-weight: 700;
}
.radar-recipe-meta {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 4px;
}
.radar-recipe-verdict { text-align: right; }
.radar-recipe-score {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
}
.radar-recipe-score span {
  font-size: 16px;
  color: var(--text-tertiary);
}
.radar-recipe-recommend {
  font-size: 13px;
  color: var(--accent);
  font-weight: 500;
  margin-top: 2px;
}

.radar-recipe-body { padding: 28px; }
.radar-recipe-subtitle {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.radar-recipe-costs { margin-bottom: 28px; }
.radar-recipe-cost-grid { display: flex; flex-direction: column; gap: 16px; }
.radar-recipe-cost-phase {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 4px;
}
.radar-recipe-cost-detail {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}
.radar-recipe-cost-bar {
  height: 6px;
  background: var(--bg-soft);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 4px;
}
.radar-recipe-cost-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
}
.radar-recipe-cost-amount {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
}
.radar-recipe-cost-amount span {
  font-weight: 400;
  color: var(--text-tertiary);
  margin-left: 6px;
}
.radar-recipe-cost-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-secondary);
}
.radar-recipe-cost-total-amount {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}

.radar-recipe-fields { margin-bottom: 28px; }

.radar-recipe-risk-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.radar-recipe-risk-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.radar-recipe-more {
  text-align: center;
  margin-top: 24px;
  font-size: 13px;
  color: var(--text-tertiary);
}

@media (max-width: 640px) {
  .radar-recipe-header { flex-direction: column; gap: 16px; }
  .radar-recipe-verdict { text-align: left; }
  .radar-recipe-body { padding: 20px; }
}

/* ══ Radar Brief — 期刊列表卡片 ══ */
.radar-issue-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.25s;
  text-decoration: none;
  color: inherit;
}
.radar-issue-card:hover { border-color: var(--accent-border); }

.radar-issue-card-week {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
  width: 40px;
}
.radar-issue-card-body { flex: 1; }
.radar-issue-card-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
}
.radar-issue-card-meta {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 4px;
}
.radar-issue-card-arrow {
  font-size: 16px;
  color: var(--text-tertiary);
  flex-shrink: 0;
  transition: color 0.2s, transform 0.2s;
}
.radar-issue-card:hover .radar-issue-card-arrow {
  color: var(--accent);
  transform: translateX(3px);
}

/* ══ 使命愿景价值观 ══ */
.belief-label {
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.belief-headline {
  font-size: clamp(20px, 3.5vw, 26px);
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
}
.belief-sub {
  font-size: 15px;
  color: var(--text-secondary);
  margin-top: 6px;
}
.belief-sep {
  width: 32px;
  height: 1px;
  background: var(--border);
  margin: 28px auto;
}
.belief-stance-en {
  font-size: clamp(18px, 3vw, 24px);
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent);
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}

/* ══ 团队卡片 ══ */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.team-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: border-color 0.2s;
}
.team-card--intern {
  border-style: dashed;
}
.team-emoji {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: var(--bg-soft);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  line-height: 1;
}
.team-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.team-role {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}
.team-quote {
  font-size: 14px;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 16px;
  line-height: 1.5;
}
.team-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}
.team-grid--founder {
  grid-template-columns: 1fr;
  max-width: 560px;
  margin: 0 auto 20px;
}
.team-card--founder {
  display: flex;
  align-items: center;
  gap: 28px;
  text-align: left;
  padding: 32px 36px;
  background: var(--accent-light);
  border-color: var(--accent-border);
}
.team-card--founder:hover {
  border-color: var(--accent);
}
.team-card--founder .team-emoji {
  width: 80px;
  height: 80px;
  font-size: 40px;
  margin: 0;
  flex-shrink: 0;
  background: var(--accent);
  color: #fff;
}
.team-card--founder .team-name {
  font-size: 22px;
}
.team-card--founder .team-role {
  color: var(--accent);
}
.team-card--founder .team-tags {
  justify-content: flex-start;
}
.team-grid--investor {
  grid-template-columns: repeat(2, 1fr);
  max-width: 660px;
  margin: 0 auto;
}
@media (max-width: 900px) {
  .team-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .team-grid, .team-grid--investor { grid-template-columns: 1fr; }
}

/* ══ 超小屏幕 ══ */
@media (max-width: 360px) {
  .hero { padding: 200px 0 160px; }
  .hero-title { letter-spacing: -0.01em; }
  .section { padding: 48px 0; }
  .container { padding: 0 16px; }
  .nav-links a { font-size: 11px; padding: 5px 6px; }
  .stats-item { padding: 28px 8px; }
  .team-card { padding: 20px 16px; }
  .team-emoji { width: 52px; height: 52px; font-size: 26px; }
  .team-name { font-size: 16px; }
  .belief-headline { font-size: 18px; }
}

/* ══ 入场动画 ══ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Hero 首屏直接播放 */
.hero-title  { animation: fadeInUp 0.8s ease-out; }
.hero-rule   { animation: fadeIn   0.6s ease-out 0.3s both; }
.hero-sub    { animation: fadeInUp 0.6s ease-out 0.4s both; }

/* 滚动触发元素 */
.animate-on-scroll { opacity: 0; }
.animate-on-scroll.is-visible { animation: fadeInUp 0.6s ease-out forwards; }
.animate-on-scroll.is-visible:nth-child(2) { animation-delay: 0.1s; }
.animate-on-scroll.is-visible:nth-child(3) { animation-delay: 0.2s; }
.animate-on-scroll.is-visible:nth-child(4) { animation-delay: 0.3s; }
.animate-on-scroll.is-visible:nth-child(5) { animation-delay: 0.15s; }
.animate-on-scroll.is-visible:nth-child(6) { animation-delay: 0.25s; }

/* ══ 交互增强 ══ */
.card:hover,
.loop-card:hover,
.role-card:hover,
.case-card:hover,
.tier-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04), 0 8px 24px rgba(0,0,0,0.03);
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}
.radar-issue-card:hover {
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  transform: translateY(-1px);
}

/* ══ 减少动画偏好 ══ */
@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll { opacity: 1; }
  .animate-on-scroll.is-visible,
  .hero-title, .hero-rule, .hero-sub { animation: none; }
  .card:hover, .loop-card:hover, .role-card:hover,
  .case-card:hover, .tier-card:hover,
  .radar-issue-card:hover { transform: none; }
}