/* 凪 NAGI · 法律文档页（隐私政策 / 用户协议）共用样式
   与主站 css/style.css 同一配色与字体栈，独立加载、零外部依赖 */

:root {
  --glass-bg: rgba(6, 12, 22, 0.46);
  --glass-border: rgba(255, 255, 255, 0.14);
  --text: rgba(255, 255, 255, 0.92);
  --text-dim: rgba(255, 255, 255, 0.62);
  --accent: #8fd0e8;
  --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html {
  background: #061224;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(120% 70% at 50% -10%, rgba(38, 84, 124, 0.55), transparent 60%),
    radial-gradient(90% 50% at 85% 110%, rgba(20, 60, 80, 0.45), transparent 65%),
    #061224;
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  line-height: 1.85;
}

/* ---------- 顶栏 ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 820px;
  margin: 0 auto;
  padding: 26px 24px 10px;
}

.brandmark {
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.brandmark .mark {
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1;
}

.brandmark .name {
  font-size: 12px;
  letter-spacing: 0.32em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.back-home {
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  padding: 7px 15px;
  background: var(--glass-bg);
  transition: color 0.2s, border-color 0.2s;
}

.back-home:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.3);
}

.lang-toggle {
  display: flex;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  overflow: hidden;
  background: var(--glass-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.lang-toggle button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text-dim);
  font-size: 12.5px;
  font-family: var(--sans);
  padding: 7px 14px;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}

.lang-toggle button.active {
  color: #061224;
  background: rgba(255, 255, 255, 0.85);
}

/* ---------- 文档卡片 ---------- */

.wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 18px 24px 40px;
}

.doc-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 22px;
  padding: clamp(26px, 5vw, 52px);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.doc-card h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(24px, 4vw, 31px);
  margin: 0 0 6px;
  letter-spacing: 0.04em;
}

.doc-meta {
  font-size: 13px;
  color: var(--text-dim);
  margin: 0 0 8px;
}

.doc-intro {
  color: var(--text-dim);
  font-size: 14.5px;
  margin-top: 14px;
}

.doc-card h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 18.5px;
  margin: 34px 0 10px;
  padding-left: 12px;
  border-left: 2px solid rgba(143, 208, 232, 0.55);
  letter-spacing: 0.03em;
}

.doc-card p {
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.82);
  margin: 8px 0;
}

.doc-card ul,
.doc-card ol {
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.82);
  margin: 8px 0;
  padding-left: 1.4em;
}

.doc-card li {
  margin: 5px 0;
}

.doc-card li::marker {
  color: var(--text-dim);
}

.doc-card a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(143, 208, 232, 0.45);
}

.doc-card a:hover {
  text-decoration-color: var(--accent);
}

.notice {
  border: 1px solid rgba(143, 208, 232, 0.28);
  background: rgba(143, 208, 232, 0.08);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.75);
  margin: 18px 0 4px;
}

/* ---------- 页脚 ---------- */

.doc-footer {
  text-align: center;
  font-size: 12.5px;
  color: var(--text-dim);
  padding: 6px 24px 44px;
}

.doc-footer a {
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  padding-bottom: 1px;
}

.doc-footer a:hover {
  color: var(--text);
}

.doc-footer .sep {
  margin: 0 10px;
  opacity: 0.5;
}

@media (max-width: 560px) {
  .topbar { padding-top: 20px; }
  .brandmark .mark { font-size: 25px; }
  .back-home { padding: 6px 12px; }
  body { line-height: 1.8; }
}