/* ============ AI 出海机会雷达 · 全局样式 ============ */
:root {
  --green-900: #06281f;
  --green-800: #0a3a2c;
  --green-700: #0f5132;
  --green-600: #14734a;
  --green-500: #10b981;
  --green-400: #34d399;
  --green-100: #d7f5e8;
  --green-50: #effaf5;
  --ink-900: #0f172a;
  --ink-700: #334155;
  --ink-500: #64748b;
  --ink-300: #cbd5e1;
  --ink-100: #eef2f6;
  --bg: #f6f8f7;
  --card: #ffffff;
  --amber-50: #fffbeb;
  --amber-500: #d97706;
  --amber-100: #fef3c7;
  --blue-50: #eff6ff;
  --blue-500: #2563eb;
  --red-500: #dc2626;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(6, 40, 31, .06), 0 8px 24px -12px rgba(6, 40, 31, .12);
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink-900);
  line-height: 1.6;
}

a { color: var(--green-600); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* ---------- 顶部导航 ---------- */
.topbar {
  background: var(--green-900);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 2px 12px rgba(0, 0, 0, .18);
}
.topbar .container {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 60px;
  padding-top: 10px;
  padding-bottom: 10px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; white-space: nowrap; }
.brand .logo {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--green-400), var(--green-600));
  display: grid; place-items: center;
  font-size: 16px;
}
.brand small { display: block; font-size: 11px; font-weight: 400; color: var(--green-100); opacity: .8; }

.nav-tabs { display: flex; gap: 6px; margin-left: auto; flex-wrap: wrap; }
.nav-tabs a {
  color: rgba(255, 255, 255, .78);
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 14px;
  white-space: nowrap;
  transition: all .15s;
}
.nav-tabs a:hover { color: #fff; background: rgba(255, 255, 255, .08); text-decoration: none; }
.nav-tabs a.active { color: var(--green-900); background: var(--green-400); font-weight: 600; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1200px 300px at 80% -50%, rgba(52, 211, 153, .25), transparent),
    linear-gradient(135deg, var(--green-800), var(--green-900));
  color: #fff;
  padding: 46px 0 40px;
}
.hero .kicker {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--green-400);
  border: 1px solid rgba(52, 211, 153, .4);
  border-radius: 999px;
  padding: 3px 12px;
  margin-bottom: 14px;
}
.hero h1 { font-size: 30px; line-height: 1.3; margin-bottom: 10px; }
.hero p { color: rgba(255, 255, 255, .82); max-width: 760px; font-size: 15px; }
.hero .meta { margin-top: 16px; font-size: 12.5px; color: rgba(255, 255, 255, .55); }

/* ---------- 区块通用 ---------- */
.section { padding: 34px 0 6px; }
.section-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.section-head h2 { font-size: 20px; }
.section-head .sub { color: var(--ink-500); font-size: 13.5px; }
.section-head .more { margin-left: auto; font-size: 13.5px; }

/* ---------- 卡片栅格 ---------- */
.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--ink-100);
  padding: 20px;
}
.card h3 { font-size: 15.5px; margin-bottom: 8px; }

.stat .num { font-size: 30px; font-weight: 800; color: var(--green-700); line-height: 1.1; }
.stat .num .unit { font-size: 14px; font-weight: 600; color: var(--ink-500); margin-left: 3px; }
.stat .label { font-size: 13.5px; color: var(--ink-700); margin: 4px 0 2px; font-weight: 600; }
.stat .note { font-size: 12px; color: var(--ink-500); }

.signal .label { font-size: 12px; color: var(--ink-500); margin-bottom: 6px; }
.signal .value { font-size: 19px; font-weight: 800; color: var(--ink-900); line-height: 1.35; word-break: break-word; }
.signal .sub { font-size: 12px; color: var(--green-600); margin-top: 6px; }

/* ---------- 路径时间线 ---------- */
.path-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.path-step {
  background: var(--card);
  border: 1px solid var(--ink-100);
  border-top: 3px solid var(--green-500);
  border-radius: var(--radius);
  padding: 16px 14px;
  box-shadow: var(--shadow);
}
.path-step .step-no { font-size: 12px; font-weight: 800; color: var(--green-500); letter-spacing: .08em; }
.path-step h4 { font-size: 14.5px; margin: 6px 0 6px; }
.path-step p { font-size: 12.5px; color: var(--ink-500); }

/* ---------- 口径提示 ---------- */
.notice {
  background: var(--amber-50);
  border: 1px solid var(--amber-100);
  color: #7c4a03;
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 13px;
  margin: 18px 0 0;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.notice.info { background: var(--green-50); border-color: var(--green-100); color: var(--green-700); }
.notice .ic { flex-shrink: 0; }

/* ---------- Badge ---------- */
.badge {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 999px;
  white-space: nowrap;
}
.badge-green { background: var(--green-100); color: var(--green-700); }
.badge-blue { background: var(--blue-50); color: var(--blue-500); }
.badge-amber { background: var(--amber-100); color: var(--amber-500); }
.badge-gray { background: var(--ink-100); color: var(--ink-700); }
.badge-red { background: #fef2f2; color: var(--red-500); }

/* ---------- 关键词表格（桌面） ---------- */
.table-wrap {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--ink-100);
  overflow: hidden;
}
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead th {
  background: var(--green-50);
  color: var(--green-800);
  text-align: left;
  font-weight: 700;
  padding: 12px 14px;
  font-size: 12.5px;
  white-space: nowrap;
  border-bottom: 1px solid var(--green-100);
}
tbody td { padding: 13px 14px; border-bottom: 1px solid var(--ink-100); vertical-align: top; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #fafdfb; }
td .kw { font-weight: 700; font-family: ui-monospace, "SF Mono", Consolas, monospace; font-size: 13px; }
td .metric { font-weight: 700; }
td .metric.muted { color: var(--ink-300); font-weight: 400; }
td .mini { display: block; font-size: 11.5px; color: var(--ink-500); margin-top: 2px; }
td .src { font-size: 11px; color: var(--ink-500); }
.pending { color: var(--amber-500); font-size: 10.5px; font-weight: 600; }

/* ---------- 案例卡片 ---------- */
.case-card { display: flex; flex-direction: column; gap: 8px; }
.case-card .who { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.case-card .who .name { font-weight: 700; font-size: 14px; }
.case-card .product { font-size: 13px; color: var(--ink-700); font-weight: 600; }
.case-card .result { font-size: 13px; color: var(--green-700); background: var(--green-50); border-radius: 8px; padding: 8px 10px; }
.case-card .cost { font-size: 12px; color: var(--ink-500); }
.case-card .tags { display: flex; gap: 6px; flex-wrap: wrap; }
.case-card .go { margin-top: auto; font-size: 12.5px; padding-top: 6px; }

/* ---------- 竞品渠道条 ---------- */
.channels { display: flex; flex-direction: column; gap: 7px; margin-top: 10px; }
.channel-row { display: grid; grid-template-columns: 110px 1fr 52px; align-items: center; gap: 10px; font-size: 12.5px; }
.channel-bar { height: 9px; border-radius: 999px; background: var(--ink-100); overflow: hidden; }
.channel-bar i { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--green-500), var(--green-400)); }
.channel-row .pct { text-align: right; font-weight: 700; color: var(--green-700); }
.snapshot { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0 4px; }
.snapshot span { background: var(--ink-100); border-radius: 8px; padding: 4px 10px; font-size: 12px; color: var(--ink-700); }

/* ---------- 方法论 ---------- */
.method-card .likes { color: var(--amber-500); font-size: 12px; font-weight: 700; }
.method-card ul { margin: 8px 0 0; padding-left: 18px; font-size: 13px; color: var(--ink-700); }
.method-card li { margin-bottom: 4px; }

/* ---------- 服务案例 ---------- */
.service-row { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: baseline; }
.service-row .name { font-weight: 700; min-width: 64px; }
.service-row .model { color: var(--ink-700); font-size: 13px; flex: 1; min-width: 200px; }
.service-row .result { color: var(--green-700); font-size: 13px; font-weight: 600; }

/* ---------- 页脚 ---------- */
.footer { margin-top: 50px; background: var(--green-900); color: rgba(255,255,255,.65); font-size: 12.5px; padding: 26px 0; }
.footer a { color: var(--green-400); }
.footer .container { display: flex; gap: 10px; flex-wrap: wrap; justify-content: space-between; }

/* ============ 移动端（≤768px）：表格转卡片、导航换行 ============ */
@media (max-width: 768px) {
  .container { padding: 0 14px; }
  .topbar .container { gap: 8px 14px; }
  .nav-tabs { margin-left: 0; width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .nav-tabs a { text-align: center; padding: 8px 6px; font-size: 13px; }

  .hero { padding: 32px 0 28px; }
  .hero h1 { font-size: 22px; }

  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .path-grid { grid-template-columns: 1fr; }

  .section-head h2 { font-size: 17px; }

  /* 表格逐条卡片化 */
  .table-wrap { background: transparent; box-shadow: none; border: none; overflow: visible; }
  table, thead, tbody, tr, td { display: block; width: 100%; }
  thead { display: none; }
  tbody tr {
    background: var(--card);
    border: 1px solid var(--ink-100);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 14px;
    padding: 6px 14px;
  }
  tbody td { border-bottom: 1px dashed var(--ink-100); padding: 10px 0; display: flex; justify-content: space-between; gap: 14px; }
  tbody tr td:last-child { border-bottom: none; }
  tbody td::before {
    content: attr(data-label);
    font-size: 11.5px;
    font-weight: 700;
    color: var(--ink-500);
    flex-shrink: 0;
    width: 76px;
  }
  tbody td .cell { text-align: right; min-width: 0; }
  .channel-row { grid-template-columns: 92px 1fr 46px; }
}