/* 365Lab 分享卡片 - 落地页样式 */
:root {
  --brand: #7c6cf6;
  --brand-2: #38bdf8;
  --brand-grad: linear-gradient(135deg, #7c6cf6 0%, #38bdf8 100%);
  /* 承载白色小字 / 品牌色小字的深渐变，端点对比度 ≥4.5:1 */
  --brand-grad-strong: linear-gradient(135deg, #6d5ae8 0%, #2472d8 100%);
  --brand-text: #5b48e0;
  --bg: #ffffff;
  --bg-alt: #f6f7fb;
  --bg-card: #ffffff;
  --text: #1c2130;
  --text-2: #5a6478;
  --text-3: #5f6678;
  --border: #e5e8f0;
  --shadow: 0 8px 30px rgba(28, 33, 48, .07);
  --shadow-lg: 0 18px 50px rgba(28, 33, 48, .12);
  --radius: 14px;
  /* R108：补齐被 editor.css 多处引用但未定义的令牌（此前回退到浅色字面量，暗色模式失效） */
  --text-1: var(--text);
  --bg-2: var(--bg-alt);
  --bd: var(--border);
  --brand-soft: rgba(124, 108, 246, .12);
  --accent: var(--brand);
  --danger: #d93840;
  --danger-soft: #fdf0f0;
}
[data-theme="dark"] {
  --bg: #10131c;
  --bg-alt: #171b27;
  --bg-card: #1b202e;
  --text: #e8ebf3;
  --text-2: #a6adc0;
  --text-3: #7f8799;
  --brand-text: #a89dff;
  --border: #2a3040;
  --shadow: 0 8px 30px rgba(0, 0, 0, .35);
  --shadow-lg: 0 18px 50px rgba(0, 0, 0, .45);
  /* R108：暗色模式对应值（亮色在 :root 已定义，暗色需覆写以保证对比度） */
  --text-1: var(--text);
  --bg-2: var(--bg-alt);
  --bd: var(--border);
  --brand-soft: rgba(124, 108, 246, .20);
  --accent: var(--brand);
  --danger: #ff7a7a;
  --danger-soft: rgba(255, 122, 122, .14);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text);
  line-height: 1.7; font-size: 16px;
  transition: background .25s, color .25s;
}
html[lang="zh-CN"] .i18n-en { display: none !important; }
html[lang="en"] .i18n-zh { display: none !important; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 780px; }
img, svg { vertical-align: middle; }
a { color: inherit; text-decoration: none; }

.skip-link { position: absolute; left: -9999px; top: 0; background: var(--brand-text); color: #fff; padding: 8px 16px; border-radius: 0 0 8px 0; z-index: 200; }
.skip-link:focus { left: 0; }
/* 仅供屏幕阅读器的视觉隐藏文本（页面标题等） */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
/* 暗色下品牌紫变浅，白字对比不足 → 改用深色字 */
[data-theme="dark"] .skip-link { background: var(--brand-text); color: #10131c; }

/* 键盘可达：统一焦点环（鼠标点击不显示，仅 Tab 导航时出现） */
:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 2.5px solid var(--brand);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-in { display: flex; align-items: center; gap: 28px; height: 62px; }
.logo { display: flex; align-items: center; gap: 9px; font-weight: 600; font-size: 16.5px; }
.logo-mark {
  width: 32px; height: 32px; border-radius: 9px; background: var(--brand-grad);
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: 0 3px 10px rgba(124, 108, 246, .35);
  flex: none;
}
.logo-text b { font-weight: 700; }
.nav { display: flex; gap: 26px; margin-left: 8px; font-size: 14.5px; color: var(--text-2); }
.nav a { position: relative; padding: 4px 0; transition: color .15s; }
.nav a:hover { color: var(--brand-text); }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.icon-btn {
  width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg-card); color: var(--text-2); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; transition: all .15s;
}
.icon-btn:hover { color: var(--brand-text); border-color: var(--brand-text); }
.ic-moon { display: none; }
[data-theme="dark"] .ic-sun { display: none; }
[data-theme="dark"] .ic-moon { display: block; }
.lang-btn {
  height: 36px; padding: 0 12px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg-card); color: var(--text); font-size: 13.5px; font-weight: 600;
  cursor: pointer; transition: all .15s; white-space: nowrap;
}
.lang-btn:hover { border-color: var(--brand-text); color: var(--brand-text); }
.only-mobile { display: none !important; }
@media (max-width: 640px) { .only-mobile { display: inline-flex !important; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; font-weight: 600;
  border-radius: 12px; cursor: pointer; border: none; transition: all .18s;
  white-space: nowrap;
}
.btn-primary { background: var(--brand-grad-strong); color: #fff; box-shadow: 0 4px 16px rgba(124, 108, 246, .35); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 7px 22px rgba(124, 108, 246, .45); }
.btn-ghost { background: var(--bg-card); color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--brand-text); color: var(--brand-text); }
.btn-sm { height: 36px; padding: 0 16px; font-size: 14px; }
.btn-lg { height: 48px; padding: 0 26px; font-size: 15.5px; }

/* ---------- Hero ---------- */
.hero { padding: 76px 0 66px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(560px 300px at 12% -4%, rgba(124, 108, 246, .13), transparent 65%),
    radial-gradient(520px 280px at 88% 8%, rgba(56, 189, 248, .11), transparent 65%);
}
.hero-in { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; position: relative; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 600;
  color: var(--brand-text); background: rgba(124, 108, 246, .1);
  border: 1px solid rgba(124, 108, 246, .22);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 20px;
}
.hero h1 { font-size: 44px; line-height: 1.22; letter-spacing: .5px; font-weight: 800; }
.hero h1 em { font-style: normal; background: var(--brand-grad-strong); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-sub { margin-top: 18px; color: var(--text-2); font-size: 16.5px; max-width: 520px; }
.hero-cta { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.hero-stats { list-style: none; display: flex; gap: 26px; margin-top: 38px; flex-wrap: wrap; }
.hero-stats li { flex: none; }
.hero-stats b { font-size: 22px; font-weight: 800; display: block; background: var(--brand-grad-strong); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-stats span { font-size: 12.5px; color: var(--text-3); white-space: nowrap; }

/* hero 卡片 mock */
.hero-cards { position: relative; min-height: 420px; }
.demo-card {
  position: absolute; border-radius: 20px; padding: 26px;
  box-shadow: var(--shadow-lg); border: 1px solid var(--border);
  animation: floaty 6s ease-in-out infinite;
}
.dc-tag { display: inline-block; font-size: 11.5px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 14px; }
.dc-1 {
  width: 250px; top: 6%; left: 6%; z-index: 3; color: #fff;
  background: linear-gradient(150deg, #6d5df0, #4f8ef7 55%, #38bdf8);
}
.dc-1 .dc-tag { color: rgba(255, 255, 255, .85); }
.dc-1 .dc-quote { font-size: 21px; line-height: 1.5; font-weight: 700; font-family: Georgia, "Songti SC", "SimSun", serif; }
.dc-1 .dc-from { display: block; margin-top: 16px; font-size: 12.5px; opacity: .8; }
.dc-2 {
  width: 230px; top: 34%; right: 4%; z-index: 2;
  background: #fdf9f1; color: #3d3629; border-color: #efe6d2;
  animation-delay: -2s;
}
.dc-2 .dc-tag { color: #8a6a2a; } /* R23：原 #b08b3e 在 #fdf9f1 上仅 3.03:1（WCAG AA 需 4.5:1），加深至 4.79:1 */
.dc-2 .dc-note { font-size: 17px; line-height: 1.8; font-weight: 500; }
.dc-2 .dc-bar { display: block; width: 46px; height: 4px; border-radius: 2px; background: #e2b45a; margin-top: 16px; }
.dc-3 {
  width: 260px; bottom: 0; left: 20%; z-index: 1;
  background: #171a22; color: #e8ebf3; border-color: #2a3040;
  animation-delay: -4s;
}
.dc-3 .dc-tag { color: #8f96ab; }
.dc-3 .dc-og { font-size: 19px; line-height: 1.55; font-weight: 700; }
.dc-dotrow { display: flex; gap: 7px; margin-top: 18px; }
.dc-dotrow i { width: 8px; height: 8px; border-radius: 50%; background: var(--brand-grad); }
.dc-dotrow i:nth-child(2) { opacity: .6; }
.dc-dotrow i:nth-child(3) { opacity: .3; }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .demo-card { animation: none; }
}

/* ---------- Sections ---------- */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }
.section h2 { font-size: 30px; font-weight: 800; text-align: center; letter-spacing: .5px; }
.section-sub { text-align: center; color: var(--text-2); margin-top: 10px; margin-bottom: 44px; }
.section h2 + .grid-4, .section h2 + .grid-3 { margin-top: 44px; }
.section h2 + .use-grid, .section h2 + .style-grid { margin-top: 40px; }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 22px; transition: all .2s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card h3 { font-size: 16px; margin: 14px 0 8px; font-weight: 700; }
.card p { font-size: 13.5px; color: var(--text-2); line-height: 1.75; }
.card-ico {
  width: 42px; height: 42px; border-radius: 12px; display: inline-flex;
  align-items: center; justify-content: center; color: #fff;
}
.ico-1 { background: linear-gradient(135deg, #7c6cf6, #9a7cf6); }
.ico-2 { background: linear-gradient(135deg, #38bdf8, #5ec5f8); }
.ico-3 { background: linear-gradient(135deg, #f472b6, #f78fb6); }
.ico-4 { background: linear-gradient(135deg, #34d399, #6ee7b7); }
.ico-5 { background: linear-gradient(135deg, #fbbf24, #fcd34d); }
.ico-6 { background: linear-gradient(135deg, #818cf8, #a5b4fc); }

/* 使用场景 */
.use-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 22px; text-align: center; transition: all .2s;
}
.use-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.use-emoji { font-size: 32px; margin-bottom: 12px; }
.use-card h3 { font-size: 15.5px; margin-bottom: 8px; }
.use-card p { font-size: 13px; color: var(--text-2); }

/* 尺寸卡 */
.size-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 18px; margin-top: 44px; }
.size-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; text-align: center; transition: all .2s;
}
.size-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.size-demo { height: 110px; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.sd {
  display: inline-block; border: 2.5px solid var(--brand); border-radius: 8px;
  background: rgba(124, 108, 246, .08);
}
.sd.sq { width: 84px; height: 84px; }
.sd.pt45 { width: 78px; height: 97px; }
.sd.pt34 { width: 74px; height: 98px; }
.sd.pt916 { width: 56px; height: 100px; }
.sd.ls169 { width: 118px; height: 66px; }
.size-card h3 { font-size: 15.5px; }
.size-card p { font-size: 12.5px; color: var(--text-3); margin-top: 5px; }

/* 风格卡 */
.style-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.style-card { text-align: center; }
.style-demo {
  height: 150px; border-radius: var(--radius); margin-bottom: 12px;
  display: flex; align-items: flex-end; padding: 16px;
  font-family: Georgia, "Songti SC", serif; font-size: 17px;
  border: 1px solid var(--border); transition: all .2s;
}
.style-card:hover .style-demo { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.style-card > span { font-size: 13.5px; color: var(--text-2); font-weight: 600; }
.st-minimal { background: #ffffff; color: #222; }
.st-literary { background: linear-gradient(160deg, #fdf6ec, #f5e8d8); color: #7a5c33; }
.st-dark { background: #171a22; color: #f0f2f8; border-color: #2a3040; }
.st-business { background: linear-gradient(135deg, #0f2b52, #164a8a); color: #fff; }
.st-note { background: repeating-linear-gradient(#fffdf5, #fffdf5 26px, #dce8f5 27px); color: #2b4a6b; }
.st-ins { background: linear-gradient(140deg, #f9a8d4, #fbcfe8 45%, #bfdbfe); color: #83365e; }
.st-mono { background: #ffffff; color: #111111; border-bottom: 3px solid #111111; font-family: ui-monospace, Consolas, monospace; }
.st-alert { background: linear-gradient(135deg, #ff8a3d, #ff4d6d); color: #ffffff; border-color: transparent; }

/* 步骤 */
.step-card {
  position: relative; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 24px 24px; transition: all .2s;
}
.step-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.step-num {
  position: absolute; top: -16px; left: 22px; width: 34px; height: 34px;
  border-radius: 50%; background: var(--brand-grad-strong); color: #fff;
  font-weight: 800; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(124, 108, 246, .4);
}
.step-card h3 { font-size: 16px; margin-bottom: 8px; margin-top: 4px; }
.step-card p { font-size: 13.5px; color: var(--text-2); }

/* 创作技巧 */
.tips-grid { margin-top: 44px; }
.tip-card {
  position: relative; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; transition: all .2s; overflow: hidden;
}
.tip-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; }
.tip-card:nth-child(1)::before { background: linear-gradient(90deg, #7c6cf6, #9a7cf6); }
.tip-card:nth-child(2)::before { background: linear-gradient(90deg, #38bdf8, #5ec5f8); }
.tip-card:nth-child(3)::before { background: linear-gradient(90deg, #f472b6, #f78fb6); }
.tip-card:nth-child(4)::before { background: linear-gradient(90deg, #34d399, #6ee7b7); }
.tip-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.tip-num { font-size: 26px; font-weight: 800; color: var(--text-3); opacity: .4; letter-spacing: 1px; }
.tip-card h3 { font-size: 16px; margin: 6px 0 8px; font-weight: 700; }
.tip-card p { font-size: 13.5px; color: var(--text-2); }
.tips-cta { text-align: center; margin-top: 36px; }
.tips-cta .btn { height: 44px; padding: 0 22px; }

/* 隐私 */
.priv-wrap { max-width: 720px; text-align: center; }
.priv-ico {
  width: 58px; height: 58px; margin: 0 auto 18px; border-radius: 16px;
  background: rgba(124, 108, 246, .1); color: var(--brand);
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(124, 108, 246, .25);
}
.priv-wrap h2 { margin-bottom: 16px; }
.priv-wrap p { color: var(--text-2); font-size: 14.5px; margin-top: 10px; }

/* CTA */
.cta-section { text-align: center; }
.cta-section h2 { margin-bottom: 26px; }

/* FAQ */
.faq-list { margin-top: 36px; }
.faq-item {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
  padding: 0 20px; margin-bottom: 12px; transition: border-color .2s;
}
.faq-item[open] { border-color: rgba(124, 108, 246, .4); }
.faq-item summary {
  cursor: pointer; font-weight: 700; font-size: 15px; padding: 16px 0;
  list-style: none; display: flex; align-items: center; justify-content: space-between;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; font-size: 20px; color: var(--brand); font-weight: 500; transition: transform .2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 0 16px; color: var(--text-2); font-size: 14px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-alt); padding: 44px 0 26px; }
.footer-in { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
.footer-brand p { color: var(--text-3); font-size: 13.5px; margin-top: 8px; }
.footer-col h4 { font-size: 13.5px; margin-bottom: 12px; color: var(--text-3); font-weight: 600; }
.footer-col a { display: block; font-size: 14px; color: var(--text-2); padding: 4px 0; transition: color .15s; }
.footer-col a:hover { color: var(--brand-text); }
.footer-bottom { margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--text-3); font-size: 12.5px; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-in { grid-template-columns: 1fr; gap: 20px; }
  .hero-cards { min-height: 380px; max-width: 520px; margin: 10px auto 0; width: 100%; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .style-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-in { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav { display: none; }
  .header-in { gap: 14px; }
  .header-actions { gap: 8px; }
  /* 移动端省略主题按钮（系统主题兜底），保留语言切换与 CTA，避免顶栏横向溢出 */
  #btnTheme { display: none; }
  .nav.open {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 62px; left: 0; right: 0;
    background: var(--bg); border-bottom: 1px solid var(--border);
    padding: 6px 24px 14px; box-shadow: var(--shadow-lg); margin-left: 0;
  }
  .nav.open a { padding: 13px 0; font-size: 15px; border-bottom: 1px solid var(--border); }
  .nav.open a:last-child { border-bottom: none; }
  .hero { padding: 48px 0 40px; }
  .hero h1 { font-size: 31px; }
  .hero-stats { gap: 22px; }
  .hero-cards { min-height: 330px; }
  .demo-card.dc-1 { width: 210px; left: 0; }
  .demo-card.dc-2 { width: 200px; top: 40%; }
  .demo-card.dc-3 { width: 230px; left: 10%; }
  .section { padding: 52px 0; }
  .section h2 { font-size: 24px; }
  .grid-4 { grid-template-columns: 1fr; }
  .style-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-in { grid-template-columns: 1fr; gap: 22px; }
}

/* ---------- 打印 / 导出 PDF（R7） ---------- */
/* 落地页打印时隐藏页头、导航、页脚、弹窗与 Toast，保留正文内容。 */
@media print {
  .site-header, .nav, .site-footer, .skip-link, .modal-mask,
  #toastWrap, #copyToast, .fab-btn, .toolbar-print-hide { display: none !important; }
  html, body { background: #fff !important; }
  @page { margin: 12mm; }
}

/* ---------- 信息页（FAQ / 指南 / 关于 / 条款 / 隐私，R14） ---------- */
.page-hero { padding: 56px 0 40px; position: relative; overflow: hidden; text-align: center; }
.page-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(480px 240px at 50% -10%, rgba(124, 108, 246, .12), transparent 70%);
}
.page-hero .wrap { position: relative; }
.crumb { font-size: 12.5px; color: var(--text-3); margin-bottom: 14px; }
.crumb a:hover { color: var(--brand-text); }
.page-hero h1 { font-size: 36px; font-weight: 800; letter-spacing: .5px; }
.page-hero h1 em { font-style: normal; background: var(--brand-grad-strong); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.page-hero .page-sub { margin: 14px auto 0; max-width: 640px; color: var(--text-2); font-size: 15px; }
.page-hero .hero-cta { justify-content: center; }
.page-section { padding: 8px 0 64px; }
.doc-body .wrap { max-width: 860px; }
.doc-updated { text-align: center; color: var(--text-3); font-size: 13px; margin-top: 8px; }

/* 问答列表页（复用 FAQ 手风琴 + 引导 CTA） */
.faq-cta { text-align: center; margin-top: 36px; }
.faq-cta .btn { height: 44px; padding: 0 22px; }

/* 指南页卡片网格 */
.guide-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 8px; }
.guide-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 22px; transition: all .2s;
}
.guide-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.guide-ico {
  width: 40px; height: 40px; border-radius: 11px; color: #fff; margin-bottom: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #7c6cf6, #38bdf8);
}
.guide-card:nth-child(even) .guide-ico { background: linear-gradient(135deg, #38bdf8, #34d399); }
.guide-card h3 { font-size: 16px; margin-bottom: 8px; font-weight: 700; }
.guide-card p { font-size: 13.5px; color: var(--text-2); line-height: 1.8; }
.guide-card code {
  font-family: ui-monospace, Consolas, "SF Mono", monospace; font-size: 12.5px;
  background: rgba(124, 108, 246, .1); color: var(--brand-text); padding: 1px 6px; border-radius: 5px;
}
@media (max-width: 720px) { .guide-grid { grid-template-columns: 1fr; } }

/* 关于页 */
.about-hero { text-align: center; max-width: 720px; }
.about-intro { max-width: 720px; margin-left: auto; margin-right: auto; text-align: center; }
.about-group { max-width: 780px; margin-left: auto; margin-right: auto; margin-top: 12px; }
.about-group h2 {
  font-size: 22px; font-weight: 800; text-align: center; letter-spacing: .5px; margin-bottom: 22px;
}
.site-link-card {
  text-align: center; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 22px; max-width: 620px; margin: 0 auto;
}
.site-link-card p { color: var(--text-2); font-size: 14px; margin-bottom: 18px; }
.mission-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.mission-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 20px; text-align: center; transition: all .2s;
}
.mission-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.mission-ico {
  width: 46px; height: 46px; margin: 0 auto 14px; border-radius: 13px; color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.mission-card h3 { font-size: 15.5px; margin-bottom: 8px; }
.mission-card p { font-size: 13px; color: var(--text-2); }
.contact-card {
  text-align: center; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 30px 24px; max-width: 620px; margin: 0 auto;
}
.contact-card p { color: var(--text-2); font-size: 14px; margin-bottom: 20px; }
.contact-email {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 17px; font-weight: 700; color: var(--brand-text);
  border: 1px dashed rgba(124, 108, 246, .5); border-radius: 12px;
  padding: 10px 20px; cursor: pointer; background: rgba(124, 108, 246, .06);
  transition: all .18s; user-select: all;
}
.contact-email:hover { background: rgba(124, 108, 246, .12); border-color: var(--brand-text); transform: translateY(-1px); }
.contact-email svg { flex: none; opacity: .8; }
.contact-email .email-text { overflow-wrap: anywhere; user-select: all; }
.contact-email .copy-badge {
  font-size: 11px; font-weight: 500; color: var(--text-3); white-space: nowrap;
  background: var(--bg-alt); border: 1px solid var(--border); border-radius: 99px; padding: 2px 9px;
}
.new-tab-mark { font-size: 11px; font-weight: 500; opacity: .75; margin-left: 6px; }
.contact-hint { margin-top: 14px; font-size: 12.5px; color: var(--text-3); }
@media (max-width: 720px) { .mission-grid { grid-template-columns: 1fr; } }

/* 条款 / 隐私文档排版 */
.doc-body h2 { font-size: 20px; font-weight: 800; margin: 34px 0 12px; padding-top: 6px; }
.doc-body h3 { font-size: 16px; font-weight: 700; margin: 22px 0 8px; }
.doc-body p { color: var(--text-2); font-size: 14.5px; margin: 10px 0; }
.doc-body ul, .doc-body ol { color: var(--text-2); font-size: 14.5px; margin: 10px 0 10px 22px; }
.doc-body li { margin: 6px 0; }
.doc-body strong { color: var(--text); font-weight: 700; }
.doc-body a { color: var(--brand-text); text-decoration: underline; text-underline-offset: 3px; }
.doc-body a:hover { text-decoration-thickness: 2px; }
.doc-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 8px 30px 26px; margin-top: 30px;
}
.doc-note {
  background: rgba(124, 108, 246, .08); border: 1px solid rgba(124, 108, 246, .25);
  border-radius: 10px; padding: 12px 16px; font-size: 13.5px; color: var(--text-2); margin: 14px 0;
}
.doc-note strong { color: var(--brand-text); }

/* 复制提示 Toast（R98 弹窗风格统一：与编辑器 .toast 同款主题卡片风，原深底硬编码移除） */
.copy-toast {
  position: fixed; left: 50%; bottom: 42px; transform: translate(-50%, 16px);
  background: var(--bg-card); color: var(--text); font-size: 13.5px;
  padding: 10px 20px 10px 22px; border: 1px solid var(--border);
  border-radius: 12px; box-shadow: var(--shadow-lg); overflow: hidden;
  opacity: 0; pointer-events: none; transition: opacity .22s, transform .22s; z-index: 300;
}
.copy-toast::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--brand); border-radius: 12px 0 0 12px;
}
.copy-toast.show { opacity: 1; transform: translate(-50%, 0); }