/* =============================================================
 * Life 工具共享样式 - life.css
 * 基于 Remotion 设计令牌,适配长文/工具混合场景
 * 设计令牌 + 响应式 + 暗色主题 + 文章+工具双形态
 * ============================================================= */

/* ---------- 设计令牌 ---------- */
:root {
  --primary: #2496ED;
  --primary-dark: #0DB7ED;
  --primary-darker: #1576b8;
  --ink: #1a2530;
  --ink-2: #2c3e50;
  --ink-3: #5a6b7a;
  --paper: #f7f9fc;
  --paper-card: #ffffff;
  --paper-2: #eef3f9;
  --border: #d8e2ec;
  --ok: #00b894;
  --warn: #d63031;
  --tip: #f0a020;
  --shadow-sm: 0 1px 2px rgba(10, 26, 42, .06), 0 1px 3px rgba(10, 26, 42, .05);
  --shadow-md: 0 4px 6px rgba(10, 26, 42, .07), 0 2px 4px rgba(10, 26, 42, .05);
  --shadow-lg: 0 10px 15px rgba(10, 26, 42, .08), 0 4px 6px rgba(10, 26, 42, .05);
  --radius: 12px;
  --radius-sm: 8px;
  --max-w: 1100px;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: "SF Mono", Consolas, "Liberation Mono", monospace;
  --accent: #6366f1;
}

/* 暗色主题 */
[data-theme="dark"] {
  --ink: #e6edf3;
  --ink-2: #c4d1de;
  --ink-3: #8898a8;
  --paper: #0a1a2a;
  --paper-card: #11212f;
  --paper-2: #1a2a3a;
  --border: #1f3346;
  --accent: #818cf8;
}

/* ---------- 基础重置 ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 80px; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-2);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  transition: background .3s, color .3s;
}
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
  margin: 1.5em 0 .6em;
  letter-spacing: -.01em;
}
h1 { font-size: clamp(1.7rem, 4vw, 2.2rem); margin-top: .6em; }
h2 { font-size: clamp(1.3rem, 2.5vw, 1.6rem); padding-bottom: .3em; }
h3 { font-size: clamp(1.05rem, 1.8vw, 1.2rem); }
h4 { font-size: 1rem; }
p { margin: 0 0 1em; }
a { color: var(--primary); text-decoration: none; transition: color .15s; }
a:hover, a:focus { color: var(--primary-dark); text-decoration: underline; }
strong { color: var(--ink); font-weight: 700; }
em { font-style: italic; color: var(--ink); }
ul, ol { padding-left: 1.5em; margin: 0 0 1em; }
li { margin: .3em 0; }
img, svg { max-width: 100%; height: auto; display: block; }
hr { border: 0; border-top: 1px solid var(--border); margin: 2em 0; }
code {
  font-family: var(--font-mono);
  background: var(--paper-2);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: .9em;
  color: var(--primary-darker);
}
[data-theme="dark"] code { color: var(--primary-dark); }
blockquote {
  border-left: 4px solid var(--primary);
  background: var(--paper-2);
  padding: 12px 18px;
  margin: 1em 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--ink-2);
  font-style: italic;
}

/* ---------- 顶部导航 ---------- */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: #fff;
  padding: 8px 16px;
  z-index: 1000;
  text-decoration: none;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { top: 0; }
.progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  z-index: 100;
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  transition: width .1s linear;
  box-shadow: 0 0 8px rgba(36, 150, 237, .4);
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 249, 252, .92);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background .3s;
}
[data-theme="dark"] .site-header { background: rgba(10, 26, 42, .92); }
.nav-wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
}
.brand-mark {
  width: 34px;
  height: 34px;
  background: var(--primary);
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 16px;
  box-shadow: 0 2px 8px rgba(36, 150, 237, .25);
}
.brand-text strong { display: block; font-size: 15px; color: var(--ink); font-weight: 700; }
.brand-text small { display: block; font-size: 11px; color: var(--ink-3); font-weight: 400; }
.nav-links { display: flex; gap: 8px; margin-left: auto; flex-wrap: wrap; font-size: 13.5px; }
.nav-links a {
  color: var(--ink-2);
  padding: 6px 12px;
  border-radius: 6px;
  text-decoration: none;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--primary);
  background: var(--paper-2);
  text-decoration: none;
}
.theme-toggle {
  background: var(--paper-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  cursor: pointer;
  color: var(--ink-2);
  font-size: 14px;
  transition: all .15s;
}
.theme-toggle:hover {
  background: var(--primary-light, var(--paper-2));
  color: var(--ink);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  font-size: 13px;
  color: var(--ink-3);
  margin: 14px 0 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.breadcrumb a { color: var(--ink-3); text-decoration: none; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { margin: 0 4px; opacity: .5; }
.breadcrumb-current { color: var(--ink); font-weight: 500; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--paper-2) 0%, var(--paper) 100%);
  border-bottom: 1px solid var(--border);
  padding: 36px 20px 32px;
}
.hero-inner { max-width: var(--max-w); margin: 0 auto; }
.hero h1 { font-size: clamp(1.7rem, 4vw, 2.2rem); margin: 0 0 10px; font-weight: 800; }
.hero h1 .accent { color: var(--primary); }
.hero-sub { font-size: 1rem; color: var(--ink-2); max-width: 720px; line-height: 1.6; margin: 0; }
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--ink-3);
}
.hero-meta-item strong { color: var(--ink); margin-right: 4px; }

/* ---------- 主体容器 ---------- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 28px 20px 80px; }
.article-container { max-width: 860px; margin: 0 auto; padding: 0 20px 60px; }

/* ---------- 工具卡片(总目录) ---------- */
.tool-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  margin-top: 18px;
}
.tool-card {
  background: var(--paper-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: all .25s;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--ink);
  border-left: 3px solid var(--primary);
}
.tool-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-left-width: 6px;
  text-decoration: none;
}
.tool-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  font-size: 20px;
}
.tool-content { flex: 1; min-width: 0; }
.tool-name { font-size: 16px; font-weight: 700; color: var(--ink); margin: 0 0 4px; }
.tool-desc { font-size: 13px; color: var(--ink-3); margin: 0; }
.tool-arrow { color: var(--ink-3); font-size: 14px; flex-shrink: 0; transition: transform .15s, color .15s; }
.tool-card:hover .tool-arrow { color: var(--primary); transform: translateX(3px); }

/* ---------- 文章主体 ---------- */
.article-header {
  background: linear-gradient(135deg, var(--paper-2) 0%, var(--paper) 100%);
  border-bottom: 1px solid var(--border);
  padding: 40px 20px;
  text-align: center;
}
.article-header .icon-emoji {
  font-size: 56px;
  margin-bottom: 12px;
  line-height: 1;
}
.article-header h1 {
  font-size: clamp(1.7rem, 4.5vw, 2.4rem);
  margin: 0 0 10px;
  font-weight: 800;
}
.article-header p {
  font-size: 1rem;
  color: var(--ink-2);
  max-width: 680px;
  margin: 0 auto;
  opacity: .9;
}
.article-meta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink-3);
  justify-content: center;
}

/* 文章章节 */
.section {
  background: var(--paper-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 26px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
  scroll-margin-top: 80px;
}
.section-bordered { border-left: 4px solid var(--primary); }
.section-bordered-red { border-left: 4px solid var(--warn); }
.section-bordered-orange { border-left: 4px solid #e67e22; }
.section-bordered-green { border-left: 4px solid var(--ok); }
.section-bordered-yellow { border-left: 4px solid var(--tip); }
.section-bordered-purple { border-left: 4px solid var(--accent); }

.section-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.section-icon {
  font-size: 40px;
  line-height: 1;
  flex-shrink: 0;
}
.section-header h2 {
  margin: 0;
  font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  color: var(--ink);
}
.section-header p {
  margin: 4px 0 0;
  font-size: 13.5px;
  color: var(--ink-3);
}

/* 文章正文段落(长文版) */
.article-body { font-size: 16px; line-height: 1.85; color: var(--ink-2); }
.article-body p { margin-bottom: 1em; }
.article-body h2 {
  font-size: clamp(1.25rem, 2.4vw, 1.5rem);
  margin: 2em 0 .8em;
  padding-bottom: .3em;
  border-bottom: 1px solid var(--border);
}
.article-body h3 {
  font-size: 1.15rem;
  margin: 1.6em 0 .6em;
}
.article-body ul, .article-body ol { padding-left: 1.6em; }
.article-body li { margin: .4em 0; }

/* 内嵌卡片 */
.callout {
  background: var(--paper-2);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  margin: 1em 0;
  border-left: 4px solid var(--primary);
  font-size: 14.5px;
}
.callout-info { background: var(--primary); color: #fff; }
.callout-info p, .callout-info strong { color: #fff; }
.callout-warn { background: #fff8e1; border-color: var(--tip); }
[data-theme="dark"] .callout-warn { background: #2a2410; color: #f0d080; border-color: #6a4a00; }
.callout-success { background: #e8f7ef; border-color: var(--ok); }
[data-theme="dark"] .callout-success { background: #0e2a1e; color: #a0d8b5; border-color: #1f5e3c; }
.callout-danger { background: #fdedec; border-color: var(--warn); }
[data-theme="dark"] .callout-danger { background: #2a1414; color: #f5b0a8; border-color: #6a2222; }

/* 网格 */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* 内嵌卡片(无背景块) */
.card {
  background: var(--paper-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
}
.card-soft { background: var(--paper-2); border-color: transparent; }

/* 数字步骤列表 */
.steps { list-style: none; padding: 0; margin: 0; }
.steps li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--border);
}
.steps li:last-child { border-bottom: 0; }
.steps li .step-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 14px;
}
.steps li .step-body { flex: 1; min-width: 0; }
.steps li .step-body strong { display: block; font-size: 15px; color: var(--ink); margin-bottom: 4px; }
.steps li .step-body p { margin: 0; font-size: 14px; color: var(--ink-2); }

/* 表格 */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--paper-card);
  border-radius: var(--radius-sm);
  overflow: hidden;
  font-size: 14px;
}
.data-table th, .data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.data-table th {
  background: var(--paper-2);
  font-weight: 700;
  color: var(--ink);
  font-size: 13px;
}
.data-table tbody tr:hover { background: var(--paper-2); }
.data-table-wrap { overflow-x: auto; border-radius: var(--radius-sm); border: 1px solid var(--border); }

/* 统计卡片网格 */
.stats-grid {
  display: grid;
  gap: 14px;
  margin: 20px 0;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}
.stat-card {
  background: var(--paper-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 16px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--primary);
}
.stat-card.stat-ok { border-left-color: var(--ok); }
.stat-card.stat-warn { border-left-color: var(--warn); }
.stat-card .stat-label {
  font-size: 13px;
  color: var(--ink-3);
  margin-bottom: 6px;
}
.stat-card .stat-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--ink);
  font-family: var(--font-mono);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .2s;
  min-height: 44px;
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}
.btn-secondary {
  background: var(--paper-card);
  color: var(--ink);
  border-color: var(--border);
}
.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  text-decoration: none;
}
.btn-warn {
  background: var(--ok);
  color: #fff;
  border-color: var(--ok);
}
.btn-warn:hover {
  background: #00a884;
  border-color: #00a884;
  color: #fff;
  text-decoration: none;
}
.action-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 20px 0;
}

/* 进度条(图表替代) */
.progress-bar-wrap {
  background: var(--paper-2);
  border-radius: 999px;
  height: 10px;
  overflow: hidden;
  margin: 8px 0;
}
.progress-bar {
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  height: 100%;
  transition: width .6s ease;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--paper-2);
  color: var(--ink-3);
  padding: 30px 20px;
  font-size: 13px;
  line-height: 1.6;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}
.footer-inner { max-width: var(--max-w); margin: 0 auto; text-align: center; }
.footer-inner a { color: var(--primary); }

/* ---------- 回到顶部 ---------- */
.back-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: 0;
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: all .25s;
  z-index: 40;
  font-size: 18px;
  font-weight: 700;
}
.back-top.visible { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--primary-dark); transform: translateY(-3px); }

/* ---------- 移动端适配 ---------- */
@media (max-width: 768px) {
  .nav-wrap { padding: 10px 14px; gap: 10px; }
  .nav-links { display: none; }
  .hero, .article-header { padding: 24px 14px 20px; }
  .container { padding: 18px 14px 60px; }
  .section { padding: 18px 18px; }
  .tool-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .back-top { bottom: 16px; right: 16px; width: 40px; height: 40px; }
  .article-header .icon-emoji { font-size: 44px; }
  .section-icon { font-size: 32px; }
}
@media (max-width: 480px) {
  h1 { font-size: 1.5rem !important; }
  h2 { font-size: 1.2rem !important; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .btn { padding: 8px 14px; font-size: 13px; min-height: 40px; }
  .brand-text strong { font-size: 14px; }
  .brand-text small { font-size: 10px; }
  .section { padding: 14px 14px; }
}

/* ---------- 减弱动画偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ---------- 打印样式 ---------- */
@media print {
  .site-header, .back-top, .progress, .theme-toggle, .action-bar { display: none !important; }
  body { background: #fff; color: #000; }
  .section { break-inside: avoid; box-shadow: none; border-color: #ccc; }
}