/* tabledi.com — English site styles.
   Design tokens mirror the zh site (website/index.html, "breeze" / I·清风):
   flat surfaces, no shadows, #3B82F6 primary, generous whitespace.
   Kept as one hand-written file on purpose — no Tailwind compile step,
   so the English site can be deployed as plain static files. */

:root {
  --bg: #ffffff;
  --ink: #111827;      /* gray 900 — headings */
  --body: #4b5563;     /* gray 600 — body copy */
  --blue: #3b82f6;
  --blue-600: #2563eb;
  --blue-50: #eff6ff;
  --emerald: #10b981;
  --emerald-50: #ecfdf5;
  --amber-50: #fffbeb;
  --muted: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-400: #9ca3af;
  --maxw: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color: var(--body);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { color: var(--ink); line-height: 1.2; margin: 0 0 .6em; }
h1 { font-size: clamp(2.2rem, 5.5vw, 3.6rem); font-weight: 700; letter-spacing: -.02em; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.25rem); font-weight: 700; letter-spacing: -.015em; }
h3 { font-size: 1.125rem; font-weight: 600; }
p { margin: 0 0 1rem; }
a { color: var(--blue-600); text-decoration: none; }
a:hover { text-decoration: underline; }
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .9em; background: var(--gray-100);
  padding: .12em .38em; border-radius: 4px;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 760px; }
.center { text-align: center; }
.muted { color: var(--gray-400); font-size: .9rem; }

/* ── nav ── */
.nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: saturate(1.6) blur(8px);
  border-bottom: 1px solid var(--gray-200);
}
.nav-inner { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand {
  font-size: 1.2rem; font-weight: 700; color: var(--ink);
  letter-spacing: -.02em; text-decoration: none;
}
.brand b { color: var(--blue); font-weight: 700; }
.brand:hover { text-decoration: none; }
.nav-links { display: flex; gap: 24px; margin-left: auto; }
.nav-links a { color: var(--body); font-size: .93rem; font-weight: 500; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }

/* ── 移动端汉堡菜单 ──
   纯 CSS(checkbox + label),不引 JS:每个页面只是多两个元素,没有脚本要同步。
   ≤900px 之前 .nav-links 是 display:none —— 手机用户到不了 Pricing / Download,
   这是首页转化的硬伤(TABLEDI-GLOBAL-DESIGN.md §3.2 首页修订)。 */
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 34px; height: 34px; padding: 6px; cursor: pointer; border-radius: 8px;
  flex-shrink: 0;
}
.nav-burger:hover { background: var(--muted); }
.nav-burger span {
  display: block; height: 2px; width: 100%; background: var(--ink); border-radius: 2px;
  transition: transform .18s, opacity .18s;
}
/* checkbox 本身是隐形的,但**保留在 tab 顺序里** —— 键盘用户 tab 到它、空格开合菜单,
   焦点环画在汉堡图标上(~ 通用兄弟选择器,不依赖中间隔了几个元素)。 */
.nav-toggle:focus-visible ~ .nav-burger { outline: 2px solid var(--blue); outline-offset: 2px; }

/* ── buttons ── */
.btn {
  display: inline-block; padding: 12px 24px; border-radius: 8px;
  font-weight: 600; font-size: .97rem; text-align: center;
  border: 1px solid transparent; cursor: pointer;
  transition: background-color .15s, border-color .15s, color .15s;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-600); color: #fff; }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--gray-200); }
.btn-ghost:hover { background: var(--muted); color: var(--ink); }
.btn-sm { padding: 8px 16px; font-size: .88rem; }
.btn-lg { padding: 15px 34px; font-size: 1.05rem; }
.btn-block { display: block; width: 100%; }
.btn[disabled], .btn.is-disabled { opacity: .5; pointer-events: none; }

/* ── hero ── */
.hero { padding: 88px 0 72px; }
.hero h1 { max-width: 15ch; }
.eyebrow {
  color: var(--blue-600); font-weight: 600; font-size: .85rem;
  letter-spacing: .06em; text-transform: uppercase; margin-bottom: 18px;
}
.lede { font-size: 1.16rem; max-width: 62ch; margin-bottom: 32px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 18px; }
.fineprint { font-size: .87rem; color: var(--gray-400); margin: 0; }
.fineprint.center { margin-top: 28px; }

/* ── sections ── */
.section { padding: 76px 0; }
.section-alt { background: var(--muted); }
.section-lede { font-size: 1.06rem; max-width: 66ch; margin-bottom: 40px; }
.section-lede.center { margin-left: auto; margin-right: auto; }

/* ── cards / features ── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 40px; }
.card {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 12px; padding: 28px;
}
.card-icon { font-size: 1.6rem; margin-bottom: 12px; }
.card p, .feature p { margin: 0; font-size: .97rem; }
.feature { padding: 20px 0; }
.feature h3 { margin-bottom: .4em; }

/* ── pricing ── */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.plan {
  position: relative; background: #fff; border: 1px solid var(--gray-200);
  border-radius: 12px; padding: 32px 28px;
}
.plan-featured { border-color: var(--blue); border-width: 2px; }
.badge {
  position: absolute; top: -12px; left: 28px;
  background: var(--blue); color: #fff; font-size: .74rem; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px;
}
.price { font-size: 2.4rem; font-weight: 700; color: var(--ink); margin: 4px 0 2px; line-height: 1; }
.price .per { font-size: 1rem; font-weight: 500; color: var(--gray-400); }
.price-note { font-size: .88rem; color: var(--gray-400); margin-bottom: 22px; }
.plan ul { list-style: none; margin: 0 0 26px; padding: 0; }
.plan li {
  position: relative; padding-left: 26px; margin-bottom: 10px; font-size: .94rem;
}
.plan li::before {
  content: '✓'; position: absolute; left: 0; top: 0;
  color: var(--emerald); font-weight: 700;
}
.plan li.limited::before { content: '•'; color: var(--gray-400); }
.plan li.limited { color: var(--gray-400); }

/* ── FAQ ── */
.faq {
  border-bottom: 1px solid var(--gray-200);
  padding: 18px 0;
}
.faq summary {
  cursor: pointer; font-weight: 600; color: var(--ink);
  font-size: 1.02rem; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+'; color: var(--gray-400); font-weight: 400;
  font-size: 1.4rem; line-height: 1; flex-shrink: 0;
}
.faq[open] summary::after { content: '−'; }
.faq p { margin: 14px 0 4px; font-size: .97rem; }

/* ── CTA band ── */
.cta-band { background: var(--blue-50); }

/* ── footer ── */
.footer { border-top: 1px solid var(--gray-200); padding: 40px 0; }
.footer-inner { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.footer-inner .muted { margin: 6px 0 0; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; align-items: flex-start; }
.footer-links a { color: var(--body); font-size: .92rem; }

/* ── download page ── */
.dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 40px; }
.dl-card {
  background: #fff; border: 1px solid var(--gray-200); border-radius: 12px;
  padding: 30px 26px; text-align: center;
}
.dl-card.is-primary { border-color: var(--blue); border-width: 2px; }
.dl-os { font-size: 2rem; margin-bottom: 10px; }
.dl-card h3 { margin-bottom: 4px; }
.dl-meta { font-size: .86rem; color: var(--gray-400); margin-bottom: 20px; }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; }
.steps li {
  counter-increment: step; position: relative;
  padding-left: 44px; margin-bottom: 22px;
}
.steps li::before {
  content: counter(step); position: absolute; left: 0; top: -1px;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--blue-50); color: var(--blue-600);
  font-weight: 600; font-size: .9rem;
  display: flex; align-items: center; justify-content: center;
}
.steps h3 { margin-bottom: .25em; }
.steps p { margin: 0; font-size: .95rem; }

/* ── buy page ── */
.buy-layout { display: grid; grid-template-columns: 1fr 380px; gap: 48px; align-items: start; }
.plan-picker { display: grid; gap: 12px; margin-bottom: 28px; }
.plan-option {
  display: flex; align-items: baseline; gap: 14px;
  border: 1px solid var(--gray-200); border-radius: 10px;
  padding: 18px 20px; cursor: pointer; background: #fff;
  transition: border-color .15s, background-color .15s;
}
.plan-option:hover { border-color: var(--blue); }
.plan-option input { margin: 0; accent-color: var(--blue); }
.plan-option.is-active { border-color: var(--blue); border-width: 2px; background: var(--blue-50); }
.plan-option .po-name { font-weight: 600; color: var(--ink); }
.plan-option .po-price { margin-left: auto; font-weight: 700; color: var(--ink); }
.plan-option .po-note { font-size: .85rem; color: var(--gray-400); }
.summary {
  background: var(--muted); border: 1px solid var(--gray-200);
  border-radius: 12px; padding: 28px;
}
.summary-row { display: flex; justify-content: space-between; margin-bottom: 12px; font-size: .95rem; }
.summary-total {
  border-top: 1px solid var(--gray-200); margin-top: 16px; padding-top: 16px;
  font-size: 1.15rem; font-weight: 700; color: var(--ink);
}
.field { margin-bottom: 18px; }
.field label { display: block; font-size: .9rem; font-weight: 500; color: var(--ink); margin-bottom: 6px; }
.field input {
  width: 100%; padding: 11px 14px; font-size: .97rem; font-family: inherit;
  border: 1px solid var(--gray-200); border-radius: 8px; background: #fff; color: var(--ink);
}
.field input:focus { outline: 2px solid var(--blue); outline-offset: -1px; border-color: var(--blue); }
.field .hint { font-size: .84rem; color: var(--gray-400); margin: 6px 0 0; }
.notice {
  border-radius: 10px; padding: 16px 18px; font-size: .93rem; margin-bottom: 22px;
}
.notice-info { background: var(--blue-50); color: #1e40af; }
.notice-warn { background: var(--amber-50); color: #92400e; }
.notice-ok { background: var(--emerald-50); color: #065f46; }
.notice code { background: rgba(255, 255, 255, .6); }
.license-key {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 1.05rem; font-weight: 600; color: var(--ink);
  background: #fff; border: 1px dashed var(--emerald);
  border-radius: 8px; padding: 14px; text-align: center;
  margin: 12px 0; user-select: all; word-break: break-all;
}
.is-hidden { display: none !important; }

/* ── Free vs Paid 对照表(/pricing/) ──
   宽表在窄屏必须自己横向滚动,页面主体绝不能出现横向溢出。 */
.cmp-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 0 16px; }
.cmp {
  width: 100%; min-width: 560px; border-collapse: collapse;
  font-size: .95rem; background: #fff;
}
.cmp th, .cmp td {
  text-align: left; padding: 14px 18px;
  border-bottom: 1px solid var(--gray-200); vertical-align: top;
}
.cmp thead th {
  color: var(--ink); font-weight: 600; font-size: .88rem;
  letter-spacing: .04em; text-transform: uppercase;
  border-bottom: 2px solid var(--gray-200); white-space: nowrap;
}
.cmp tbody th { font-weight: 500; color: var(--ink); }
.cmp td { color: var(--body); }
.cmp .col-paid { background: var(--blue-50); }
.cmp thead .col-paid { color: var(--blue-600); }
.cmp .yes { color: var(--emerald); font-weight: 700; }
.cmp .no { color: var(--gray-400); }
.cmp tr:last-child th, .cmp tr:last-child td { border-bottom: none; }

/* ── 定价页 CTA 行 ── */
.pricing-cta { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 8px; }

/* ── 长文排版(法务页 / support / account)── */
.prose h2 { font-size: 1.35rem; margin-top: 44px; }
.prose h2:first-of-type { margin-top: 0; }
.prose h3 { font-size: 1.05rem; margin-top: 28px; }
.prose p, .prose li { font-size: 1rem; }
.prose ul, .prose ol { padding-left: 22px; margin: 0 0 1rem; }
.prose li { margin-bottom: .5rem; }
.prose .updated {
  font-size: .88rem; color: var(--gray-400);
  border-bottom: 1px solid var(--gray-200); padding-bottom: 18px; margin-bottom: 34px;
}
.prose table { width: 100%; border-collapse: collapse; font-size: .94rem; margin: 0 0 1.4rem; }
.prose table th, .prose table td {
  text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--gray-200); vertical-align: top;
}
.prose table th { color: var(--ink); font-weight: 600; }
.callout {
  background: var(--blue-50); border-radius: 10px; padding: 18px 20px;
  font-size: .97rem; color: #1e40af; margin: 0 0 26px;
}
.callout code { background: rgba(255, 255, 255, .6); }
.callout p:last-child { margin-bottom: 0; }

/* ── /help/ ──
   9 个页面共用。索引页是有序清单(这 8 篇是一条旅程,不是散装 FAQ),
   文章页有面包屑和上下篇。 */
.help-crumb {
  font-size: .85rem; color: var(--gray-400); margin: 0 0 10px;
}
.help-crumb a { color: var(--gray-400); }
.help-crumb a:hover { color: var(--blue-600); }

.help-index { list-style: none; padding: 0; margin: 8px 0 0; counter-reset: none; }
.help-index li {
  padding: 16px 0; border-top: 1px solid var(--gray-200); margin: 0;
}
.help-index li:first-child { border-top: none; }
.help-index a { font-size: 1.05rem; }
.help-index .muted { font-size: .93rem; }

.help-pager {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--gray-200);
}
.help-pager a {
  display: block; padding: 14px 16px; border: 1px solid var(--gray-200);
  border-radius: 10px; font-size: .95rem; font-weight: 500; color: var(--ink);
}
.help-pager a:hover { border-color: var(--blue-600); color: var(--blue-600); }
.help-pager a.next { text-align: right; }
.help-pager span {
  display: block; font-size: .78rem; font-weight: 400; color: var(--gray-400);
  text-transform: uppercase; letter-spacing: .04em; margin-bottom: 4px;
}

/* ── 产品截图 ──
   首页 features 区上面那张。图本身是 2880×1800 的 2x 图,这里按容器缩,
   给个边框和圆角是因为截图边缘是白的,不框住会跟页面背景糊在一起。 */
.shot {
  margin: 0 0 44px;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 12px 32px rgba(15, 23, 42, .08);
}
.shot img,
.shot video { display: block; width: 100%; height: auto; }
.shot-caption {
  font-size: .87rem; color: var(--gray-400);
  padding: 12px 16px; border-top: 1px solid var(--gray-200); margin: 0;
}
.shot-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 0 0 44px;
}
.shot-grid .shot { margin: 0; }

/* ── changelog ── */
.rel { border-top: 1px solid var(--gray-200); padding: 30px 0 6px; }
.rel:first-of-type { border-top: none; padding-top: 0; }
.rel-head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 4px; }
.rel-ver { font-size: 1.5rem; font-weight: 700; color: var(--ink); letter-spacing: -.02em; }
.rel-date { font-size: .88rem; color: var(--gray-400); }
.rel-tag {
  font-size: .72rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase;
  background: var(--emerald-50); color: #065f46; padding: 3px 9px; border-radius: 999px;
}
.rel-sum { font-size: 1rem; margin-bottom: 14px; }
.rel-grp {
  font-size: .78rem; font-weight: 700; color: var(--gray-400);
  letter-spacing: .06em; text-transform: uppercase; margin: 20px 0 8px;
}
.rel ul { padding-left: 20px; margin: 0 0 12px; }
.rel li { margin-bottom: 8px; font-size: .96rem; }
.rel li b { color: var(--ink); font-weight: 600; }

/* ── responsive ── */
@media (max-width: 900px) {
  /* hero 标题里的手动换行是给宽屏调节奏的;窄屏下它会把 "that" 挤成单独一行,
     读起来像断句错误。窄屏交给自动折行。 */
  .hero h1 br { display: none; }
  .hero h1 { max-width: none; }
  .grid-3, .pricing-grid, .dl-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .buy-layout { grid-template-columns: 1fr; gap: 32px; }
  .help-pager { grid-template-columns: 1fr; }
  .help-pager a.next { text-align: left; }
  .shot-grid { grid-template-columns: 1fr; }
  .hero { padding: 60px 0 52px; }
  .section { padding: 56px 0; }

  /* 汉堡菜单:.nav-links 收进下拉,由 checkbox 控制开合。
     375px 下算过账 —— 品牌 + CTA + 汉堡刚好放得下,所以把 gap 收到 14px。 */
  .nav-inner { gap: 14px; position: relative; }
  .nav-burger { display: flex; }
  .nav-cta { margin-left: auto; }
  /* ⚠️ left/right 必须是 0,不是 -24px:.nav-inner 和 .wrap 是**同一个元素**,
     24px 的左右内边距就长在它身上。绝对定位的包含块取的是**padding box**,
     所以 0 已经是整屏宽;写 -24px 会让下拉比视口宽出 24px(实测 423 vs 399)。 */
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0; margin: 0;
    background: #fff; border-bottom: 1px solid var(--gray-200);
    padding: 6px 24px 14px;
  }
  .nav-toggle:checked ~ .nav-links { display: flex; }
  .nav-links a { padding: 12px 0; border-top: 1px solid var(--gray-200); font-size: 1rem; }
  .nav-links a:first-child { border-top: none; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle:checked ~ .nav-burger span:nth-child(2) { opacity: 0; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}