/* WhaleGuard 市场原型 · 共享设计系统（DS 蓝白 × 青绿盾牌） */
@font-face { font-family: 'Tektur'; src: url('./fonts/Tektur-Regular.ttf') format('truetype'); font-weight: 400; }
@font-face { font-family: 'Tektur'; src: url('./fonts/Tektur-Medium.ttf') format('truetype'); font-weight: 500; }
@font-face { font-family: 'Instrument Sans'; src: url('./fonts/InstrumentSans-Regular.ttf') format('truetype'); font-weight: 400; }
@font-face { font-family: 'Instrument Sans'; src: url('./fonts/InstrumentSans-Bold.ttf') format('truetype'); font-weight: 700; }
@font-face { font-family: 'Geist Mono'; src: url('./fonts/GeistMono-Regular.ttf') format('truetype'); font-weight: 400; }

:root {
  --bg: #F6F9FF;
  --bg2: #FFFFFF;
  --bg3: #EAF1FE;
  --ink: #152238;
  --muted: #5B6B8C;
  --rule: #DDE7F8;
  --accent: #4D6BFE;
  --accent2: #0284C7;
  --shield: #10B981;
  --shield-deep: #047857;
  --good: #10B981;
  --warn: #F59E0B;
  --bad: #EF4444;
  /* 严重度四级唯一来源：徽章 / 维度卡 / 定级表统一引用，CRITICAL 红、HIGH 橙、MEDIUM 暗黄、LOW 蓝，拉开色相差距 */
  --sev-crit: #DC2626; --sev-crit-bd: rgba(220,38,38,0.45); --sev-crit-bg: rgba(220,38,38,0.08);
  --sev-high: #EA580C; --sev-high-bd: rgba(234,88,12,0.45); --sev-high-bg: rgba(234,88,12,0.08);
  --sev-med: #A16207; --sev-med-bd: rgba(161,98,7,0.45); --sev-med-bg: rgba(250,204,21,0.12);
  --sev-low: #0284C7; --sev-low-bd: rgba(2,132,199,0.40); --sev-low-bg: rgba(2,132,199,0.07);
  --radius: 14px;
  --font-head: 'Tektur', 'Noto Sans CJK SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Instrument Sans', 'Noto Sans CJK SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'Geist Mono', 'JetBrains Mono', 'Noto Sans CJK SC', monospace;
  --shadow: 0 1px 2px rgba(21,34,56,0.04), 0 10px 28px rgba(77,107,254,0.06);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: var(--bg);
  background-image:
    radial-gradient(900px 500px at 85% -5%, rgba(77,107,254,0.10), transparent 60%),
    radial-gradient(700px 420px at -10% 30%, rgba(14,165,233,0.08), transparent 60%),
    radial-gradient(800px 500px at 50% 110%, rgba(16,185,129,0.06), transparent 60%);
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.mono { font-family: var(--font-mono); font-size: 0.86em; }

/* ===== 顶栏 ===== */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rule);
}
.topbar .wrap { display: flex; align-items: center; gap: 26px; height: 62px; }
.brand { display: flex; align-items: center; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand img { width: auto; height: 38px; } /* 鲸鱼+字标组合 SVG（viewBox 中心已对齐鲸身重心，无需光学补偿） */
.topbar nav { display: flex; gap: 20px; flex: 1; align-items: center; }
.topbar nav a { color: var(--muted); font-size: 13.5px; height: 36px; display: flex; align-items: center; } /* 与 logo 同高同中线，消除视觉偏上 */
.topbar nav a.on, .topbar nav a:hover { color: var(--accent); text-decoration: none; }
.search {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg2); border: 1px solid var(--rule); border-radius: 10px;
  padding: 7px 14px; min-width: 240px;
}
.search input { border: none; outline: none; background: none; font-family: var(--font-body); font-size: 13.5px; width: 100%; color: var(--ink); }
.search .kbd { font-family: var(--font-mono); font-size: 10.5px; color: var(--muted); border: 1px solid var(--rule); border-radius: 5px; padding: 1px 6px; }

/* ===== 徽章与标签 ===== */
.grade {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-head); font-weight: 500; font-size: 13px;
  width: 26px; height: 26px; border-radius: 8px; border: 1.5px solid; flex: none;
}
.grade.A { color: var(--shield-deep); border-color: var(--shield); background: rgba(16,185,129,0.10); }
.grade.B { color: #1D4ED8; border-color: var(--accent); background: rgba(77,107,254,0.10); }
.grade.C { color: #B45309; border-color: var(--warn); background: rgba(245,158,11,0.10); }
.grade.D { color: #DC2626; border-color: var(--bad); background: rgba(239,68,68,0.08); }
.chip {
  display: inline-flex; align-items: center; gap: 4px;
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.03em;
  padding: 2px 8px; border-radius: 999px; border: 1px solid; white-space: nowrap;
}
.chip.cap { color: #B45309; border-color: rgba(245,158,11,0.4); background: rgba(245,158,11,0.08); }
.chip.safe { color: var(--shield-deep); border-color: rgba(16,185,129,0.4); background: rgba(16,185,129,0.08); }
.chip.info { color: var(--accent2); border-color: rgba(2,132,199,0.35); background: rgba(2,132,199,0.07); }
.chip.risk { color: #DC2626; border-color: rgba(239,68,68,0.4); background: rgba(239,68,68,0.08); }
.chip.plain { color: var(--muted); border-color: var(--rule); background: var(--bg2); }

/* ===== 卡片与按钮 ===== */
.card { background: var(--bg2); border: 1px solid var(--rule); border-radius: var(--radius); box-shadow: var(--shadow); }
.btn {
  display: inline-flex; align-items: center; gap: 7px; cursor: pointer;
  font-family: var(--font-head); font-weight: 500; font-size: 13.5px; letter-spacing: 0.02em;
  border-radius: 10px; padding: 9px 18px; border: 1px solid transparent; transition: all .18s;
}
.btn.pri { background: linear-gradient(135deg, var(--accent), #2F54EB); color: #fff; }
.btn.pri:hover { filter: brightness(1.06); }
.btn.ghost { background: var(--bg2); border-color: var(--rule); color: var(--ink); }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ===== 安装命令框 ===== */
.install {
  display: flex; align-items: center; gap: 10px;
  background: #F0F5FF; border: 1px solid var(--rule); border-radius: 10px;
  padding: 10px 14px; font-family: var(--font-mono); font-size: 12.5px; color: #2F54EB;
  overflow-x: auto;
}
.install .copy { margin-left: auto; flex: none; cursor: pointer; color: var(--muted); border: 1px solid var(--rule); background: var(--bg2); border-radius: 7px; padding: 3px 10px; font-size: 11.5px; font-family: var(--font-body); }
.install .copy:hover { color: var(--accent); border-color: var(--accent); }

/* ===== 表格 ===== */
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead th { background: var(--bg3); font-family: var(--font-head); font-weight: 500; font-size: 12px; letter-spacing: 0.04em; text-align: left; padding: 10px 14px; color: var(--ink); }
tbody td { padding: 10px 14px; border-top: 1px solid var(--rule); color: #3D4C6B; vertical-align: top; }

/* ===== 状态点 ===== */
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; }
.dot.g { background: var(--good); } .dot.y { background: var(--warn); } .dot.r { background: var(--bad); }

/* ===== 页脚 ===== */
.footer { margin-top: 60px; border-top: 1px solid var(--rule); padding: 30px 0 40px; color: var(--muted); font-size: 12.5px; }
.footer .wrap { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.footer .brand-about { max-width: 680px; text-align: center; font-size: 12.5px; line-height: 1.9; color: #3D4C6B; }
.footer .brand-about b { color: var(--ink); }
.footer .foot-meta { width: 100%; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 500; letter-spacing: 0.01em; }
.sec-title { font-size: 19px; margin: 34px 0 14px; display: flex; align-items: center; gap: 10px; }
.sec-title::before { content: ''; width: 4px; height: 18px; border-radius: 2px; background: linear-gradient(180deg, var(--accent), var(--shield)); }

@media (max-width: 860px) {
  .topbar nav { display: none; }
  .search { min-width: 0; flex: 1; }
}