/* ============================================================
   藏书 · 法律条款页共用样式
   与 index.html 共用同一套设计变量与自托管字体
   ============================================================ */

@font-face {
  font-family: 'Quantico';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/quantico-400.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Quantico';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('fonts/quantico-700.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

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

:root {
  --accent: #15BCDF;
  --accent-border: #0fa3c2;
  --accent-soft: rgba(21, 188, 223, 0.12);
  --bg: #F2F1F0;
  --bg-card: #fff;
  --text-head: #2b3033;
  --text-body: #6b6f72;
  --text-dim: #8d9194;
  --dark: #1a1c1e;
  --stroke: rgba(43, 48, 51, 0.1);
  --stroke-2: rgba(43, 48, 51, 0.18);
  --font-display: 'Quantico', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-body: 'Quantico', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text-body);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  line-height: 1.85;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { padding-left: 1.35em; }
li { margin: 6px 0; }

/* ============ 顶部导航 ============ */
.legal-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: clamp(16px, 2.4vw, 24px) clamp(20px, 6vw, 72px);
  background: rgba(242, 241, 240, 0.86);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--stroke);
}
.legal-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #111;
}
.legal-logo:hover { text-decoration: none; }
/* 真 App 图标（assets/legal-logo.png，从 loge/ 原图裁掉白边后缩到 96px）。
   原来是代码画的黑圆 + 白色椭圆占位，和主站站标对不上。 */
.legal-logo-mark {
  width: 32px; height: 32px;
  border-radius: 8px;
  object-fit: cover;
  display: block;
  flex-shrink: 0;
}
.legal-logo-text {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 400;
  letter-spacing: -0.5px;
}
.legal-nav-links {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 32px);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.legal-nav-links a { color: #3a3a3a; }
.legal-nav-links a:hover { color: #000; text-decoration: none; }
.legal-nav-links a.on { color: var(--accent); }

/* ============ 正文 ============ */
.legal-main {
  padding: clamp(48px, 7vw, 96px) clamp(20px, 6vw, 72px) clamp(60px, 9vw, 120px);
}
.legal-wrap { max-width: 820px; margin: 0 auto; }

.legal-tag {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(11px, 1.5vw, 13px);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}
.legal-tag::before {
  content: "";
  width: 32px; height: 1px;
  background: var(--accent);
  opacity: 0.6;
}

.legal-main h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 6vw, 60px);
  line-height: 1.02;
  letter-spacing: 0.01em;
  color: var(--text-head);
  margin-bottom: 16px;
}
.legal-updated {
  font-size: 13.5px;
  color: var(--text-dim);
  padding-bottom: 28px;
  border-bottom: 1px solid var(--stroke);
  margin-bottom: 40px;
}

.legal-prose h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.4vw, 23px);
  line-height: 1.3;
  color: var(--text-head);
  margin: 44px 0 14px;
  padding-left: 14px;
  border-left: 3px solid var(--accent);
}
.legal-prose h2:first-child { margin-top: 0; }
.legal-prose h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  color: var(--text-head);
  margin: 24px 0 8px;
}
.legal-prose p {
  font-size: clamp(14px, 1.5vw, 15.5px);
  color: var(--text-body);
  margin: 12px 0;
}
.legal-prose strong { color: var(--text-head); font-weight: 700; }
.legal-prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  background: rgba(43, 48, 51, 0.06);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-head);
}

/* 强调块 */
.legal-note {
  margin: 20px 0;
  padding: 18px 22px;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  font-size: clamp(14px, 1.5vw, 15.5px);
  color: var(--text-head);
}
.legal-note strong { color: var(--text-head); }

/* 表格 */
.legal-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: clamp(13px, 1.4vw, 14.5px);
  background: var(--bg-card);
  border: 1px solid var(--stroke);
}
.legal-table th,
.legal-table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--stroke);
  vertical-align: top;
}
.legal-table th {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-head);
  background: rgba(43, 48, 51, 0.03);
  white-space: nowrap;
}
.legal-table tr:last-child td { border-bottom: none; }
.legal-table td.yes { color: #c0392b; font-weight: 700; }
.legal-table td.no { color: #1f8a4c; font-weight: 700; }

/* 子页面互相跳转 */
.legal-links {
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--stroke);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.legal-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid var(--stroke-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-head);
  transition: background 0.22s, color 0.22s, border-color 0.22s;
  clip-path: polygon(0 0, calc(100% - 11px) 0, 100% 11px, 100% 100%, 11px 100%, 0 calc(100% - 11px));
}
.legal-chip:hover {
  background: var(--text-head);
  border-color: var(--text-head);
  color: #fff;
  text-decoration: none;
}
.legal-chip.is-accent {
  background: var(--accent);
  border-color: var(--accent-border);
  color: var(--dark);
}
.legal-chip.is-accent:hover { background: #3fd0ef; border-color: #3fd0ef; color: var(--dark); }

/* ============ 页脚 ============ */
.legal-foot {
  background: #0d1014;
  color: rgba(255,255,255,0.45);
  padding: clamp(36px, 5vw, 56px) clamp(20px, 6vw, 72px);
  font-size: 12.5px;
}
.legal-foot-wrap {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
}
.legal-foot a { color: rgba(255,255,255,0.6); }
.legal-foot a:hover { color: var(--accent); }

@media (max-width: 700px) {
  .legal-nav-links { display: none; }
  .legal-table { font-size: 12.5px; }
  .legal-table th, .legal-table td { padding: 10px 12px; }
}