/* ============ OB Commander — site styles ============ */
/*
   浅色 Swiss (2026-09-22 定, 2026-09-28 改版时维持)。三条硬规矩:
     · 直角: border-radius 0。例外只有两个 —— 软件窗口 8px (Win11 窗口圆角)、kbd 4px
     · 不给阴影: 全页只有演示舞台上那台窗口带阴影 (sim/sim.css)
     · 一个强调色: 绿, 取自软件默认主题 graphite-emerald 的活动面板边框 #2B983C。
       白底上链接和小字用深一档的 #1B6B29 (6.6:1)
   主按钮黑底白字 (18:1); 功能区用编号 01–10, 不用图标; 字体零字节 (系统字体栈)。
   演示舞台永远是深色的一块, 窗口躺在上面。
*/

:root {
  --bg: #fafaf9;
  --bg-2: #f2f2f0;
  --surface: #ffffff;
  --ink: #0b0c0e;
  --stage: #14171c;

  --text: #0b0c0e;
  --text-2: #4a4e56;
  --text-3: #63676f;   /* 在 --bg-2 上也要 ≥4.5:1 */

  --line: #e4e4e1;
  --line-strong: #c9c9c5;

  --brand: #2b983c;    /* 大字和装饰 */
  --accent: #1b6b29;   /* 链接、小字、焦点环 */
  --accent-dim: #eef7f0;
  --cursor: #99c8ff;   /* 软件的光标条颜色 */

  --err: #b42318;

  --maxw: 1536px;   /* 内容区最宽 1440 (减去两边 48 的边距), 跟演示窗口一样宽, 左右边线对齐 */
  --pad: clamp(16px, 4vw, 48px);
  --gap: clamp(56px, 5.6vw, 84px);
  --font: "Segoe UI Variable Text", "Segoe UI", -apple-system, system-ui, "Microsoft YaHei UI", "PingFang SC", sans-serif;
  --font-d: "Segoe UI Variable Display", "Segoe UI Variable Text", "Segoe UI", -apple-system, system-ui, "Microsoft YaHei UI", "PingFang SC", sans-serif;
  --mono: "Cascadia Mono", "Cascadia Code", Consolas, ui-monospace, monospace;
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

/* ============ 基础 ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; background: var(--bg); color-scheme: light; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); font-size: 17px; line-height: 1.6; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg { display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; }
code, kbd, pre { font-family: var(--mono); font-variant-numeric: tabular-nums; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
::selection { background: var(--ink); color: #fff; }

h1, h2, h3 { font-family: var(--font-d); font-weight: 620; text-wrap: balance; }
h1 { font-size: clamp(34px, 4.6vw, 88px); line-height: 0.98; letter-spacing: -0.045em; }
h2 { font-size: clamp(28px, 3vw, 52px); line-height: 1.15; letter-spacing: -0.025em; }
h3 { font-size: 20px; line-height: 1.3; letter-spacing: -0.015em; }
:lang(zh) h1, :lang(zh) h2, :lang(zh) h3 { letter-spacing: 0; line-height: 1.2; }
:lang(zh) body { line-height: 1.75; }

.wrap, .container { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }
.wrap.narrow, .container.narrow { max-width: 760px; }
/* 窄栏内容: 左边线跟其他区对齐, 只限制阅读宽度 */
.read-col { max-width: 760px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.eyebrow { margin-bottom: 24px; font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-3); }
.eyebrow kbd { text-transform: none; letter-spacing: 0; }
.lead { margin-top: 24px; max-width: 62ch; font-size: 18px; color: var(--text-2); }
.fine { margin-top: 16px; font-size: 14px; color: var(--text-3); }
.fine a, .lead a, .prose a { color: var(--accent); box-shadow: inset 0 -1px 0 rgba(27, 107, 41, 0.35); }
.nb { white-space: nowrap; }
.fn { margin-left: 1px; font-size: 0.6em; vertical-align: super; line-height: 0; color: var(--accent); }

kbd {
  display: inline-block; min-width: 22px; padding: 2px 7px; text-align: center; vertical-align: 0.1em;
  font-size: 0.78em; line-height: 1.4; color: var(--text-2);
  background: var(--surface); border: 1px solid var(--line-strong); border-bottom-width: 2px; border-radius: 4px;
}

/* 桌面 / 手机 各自的元素: 手机 = 窄屏或触屏 (演示舞台也按这个藏) */
.mob { display: none !important; }
@media (max-width: 1023px), (pointer: coarse) {
  .desk { display: none !important; }
  .mob { display: inline-flex !important; }
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  min-height: 44px; padding: 12px 24px; font-size: 15px; font-weight: 550; white-space: nowrap;
  border: 1px solid transparent; transition: background 0.12s var(--ease), border-color 0.12s var(--ease);
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #2a2f38; }
.btn-size { font-weight: 400; opacity: 0.7; }
.btn-ghost { border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-sm { min-height: 36px; padding: 7px 16px; font-size: 13.5px; }
.btn-lg { min-height: 54px; padding: 15px 30px; font-size: 16.5px; }
.btn-block { display: flex; width: 100%; }
.btn[disabled] { opacity: 0.45; cursor: default; }
.link-arrow {
  display: inline-flex; align-items: center; min-height: 44px; font-size: 16px; font-weight: 550;
  box-shadow: inset 0 -1px 0 var(--line-strong); transition: color 0.12s, box-shadow 0.12s;
}
.link-arrow:hover { color: var(--accent); box-shadow: inset 0 -1px 0 var(--accent); }

/* ============ 页头 ============ */
.site-header {
  position: sticky; top: 0; z-index: 100; height: 56px;
  background: rgba(250, 250, 249, 0.86);
  backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: transform 0.12s var(--ease);
}
body.demo-focus .site-header { transform: translateY(-100%); }
.nav { display: flex; align-items: center; gap: 24px; height: 100%; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 620; font-size: 16px; letter-spacing: -0.02em; }
.logo img { margin-right: 0; }
.logo span { white-space: nowrap; }   /* 品牌名是一个整体: 同色同字重, 不拆成两截 */
.nav-links { display: flex; gap: 28px; margin-left: auto; }
.nav-links a { font-size: 14px; color: var(--text-2); transition: color 0.12s; }
.nav-links a:hover { color: var(--text); }
.lang-toggle { padding: 6px 11px; border: 1px solid var(--line-strong); font-size: 12.5px; color: var(--text-2); white-space: nowrap; }
.lang-toggle:hover { color: var(--text); border-color: var(--ink); }
.nav-menu { display: none; min-height: 44px; padding: 0 4px; font-size: 14px; font-weight: 550; }

.menu-dialog { margin: 0 0 0 auto; width: min(360px, 100vw); height: 100svh; max-height: none; padding: 24px var(--pad); border: 0; border-left: 1px solid var(--line); background: var(--bg); color: var(--text); }
.menu-dialog::backdrop { background: rgba(11, 12, 14, 0.35); }
.menu-dialog nav { display: grid; margin-top: 32px; }
.menu-dialog nav a { padding: 12px 0; font-size: 22px; font-weight: 600; border-bottom: 1px solid var(--line); }
.menu-foot { display: flex; gap: 12px; margin-top: 28px; }

/* ============ 分区 ============ */
.section { padding: var(--gap) 0; }
.section-alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(40px, 6vw, 96px); align-items: start; }

/* ============ 1 首屏 ============ */
/* 桌面: 首屏只占 78svh, 下面 22svh 露出深色舞台和窗口的上沿 (标题栏 / 菜单 / 工具栏) */
.hero { display: flex; align-items: center; min-height: calc(78svh - 56px); padding: clamp(32px, 4.5vw, 64px) 0; }
.hero-copy, .hero > .container { width: 100%; }
.hero-lede { margin-top: 28px; font-family: var(--font-d); font-size: clamp(19px, 1.6vw, 26px); line-height: 1.4; letter-spacing: -0.01em; color: var(--text-2); }
:lang(zh) .hero-lede { letter-spacing: 0; }
.hero-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 28px; margin-top: 32px; }
.hero-meta { margin-top: 24px; font-family: var(--mono); font-size: 13px; color: var(--text-3); }
.hero-note { margin-top: 6px; font-size: 13px; color: var(--text-3); }
.hero-price { margin-top: 10px; font-size: 14.5px; }
.hero-price a { color: var(--accent); }

/* ============ 2 演示舞台 ============ */
/* overflow: hidden —— 窗口的大阴影不能洒到舞台外面的浅色底上 (会在上下各印出一条灰带) */
.stage { padding: 28px var(--pad) 36px; background: var(--stage); color: #c9ced6; overflow: hidden; }
.stage-chip { width: fit-content; margin: 0 auto 20px; padding: 4px 12px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.03em; color: #aeb5bf; border: 1px solid #2c323b; }
.demo-frame { width: min(1440px, 100%); height: clamp(520px, calc(100svh - 96px), 900px); margin: 0 auto; }
.demo-frame .sim { height: 100%; box-shadow: 0 40px 120px -20px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.08); }
.stage-keys, .stage-note { max-width: 1440px; margin: 18px auto 0; font-size: 13.5px; text-align: center; color: #8d95a0; }
.stage-keys kbd { color: #c9ced6; background: #1f242b; border-color: #3a414b; }
.stage-note { margin-top: 6px; }
.stage-note a { color: #c9ced6; box-shadow: inset 0 -1px 0 #4a525d; }
@media (max-width: 1023px), (pointer: coarse) { .stage { display: none; } }

/* ============ 3 数字 ============ */
.num-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 32px; border-top: 1px solid var(--line-strong); }
.num { padding: 28px 24px 28px 0; }
.num + .num { padding-left: 24px; border-left: 1px solid var(--line); }
.num dt { font-family: var(--font-d); font-size: clamp(40px, 5vw, 72px); font-weight: 600; line-height: 1; letter-spacing: -0.04em; font-variant-numeric: tabular-nums; white-space: nowrap; }
.num dt small { margin-left: 4px; font-size: 0.4em; font-weight: 450; letter-spacing: 0; color: var(--text-3); }
.num dd { margin-top: 14px; font-size: 15px; color: var(--text-2); }
.measured { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 14.5px; color: var(--text-2); }
.measured summary { cursor: pointer; font-weight: 600; color: var(--text); }
/* 编号跟上面数字的角标 1–4 一一对应, 不能去掉 */
.measured ol { margin-top: 12px; padding-left: 22px; list-style: decimal; display: grid; gap: 6px; }


.badge { position: absolute; top: 26px; right: 28px; padding: 2px 8px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-3); border: 1px solid var(--line-strong); }
.badge.pro { color: var(--accent); background: var(--accent-dim); border-color: transparent; }


/* ============ 功能: 六格, 每格标题 + 一句话 ============ */
/* 分组小标题: 免费 / 专业版, 一眼分开 */
.feats-head { margin-top: 32px; font-family: var(--mono); font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text); }
.feats-head.pro { color: var(--accent); }
:lang(zh) .feats-head { font-family: var(--font); font-size: 14.5px; letter-spacing: 0.02em; }
:lang(zh) .badge { font-family: var(--font); letter-spacing: 0.04em; }
.feats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 14px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.feats article.pro { box-shadow: inset 0 3px 0 var(--brand); }
.feats article { position: relative; padding: 28px 28px 32px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface); }
.feats h3 { margin-bottom: 8px; padding-right: 72px; }
.feats p { font-size: 15px; color: var(--text-2); }
/* 标签要一眼看得出: 免费 = 黑框, 专业版 = 实心绿底白字 */
.badge { position: absolute; top: 26px; right: 26px; padding: 3px 10px; font-family: var(--mono); font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink); border: 1.5px solid var(--ink); }
.badge.pro { color: #fff; background: var(--accent); border-color: var(--accent); }

/* 推荐搭配: 整张卡是链接, 悬停只变边框色 */
.comps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: 14px; }
.comp { display: flex; flex-direction: column; gap: 6px; padding: 22px 24px; background: var(--surface); border: 1px solid var(--line); transition: border-color 0.12s var(--ease); }
.comp:hover { border-color: var(--ink); }
.comp h3 { font-size: 17px; }
.comp p { flex: 1; font-size: 14.5px; color: var(--text-2); }
.comp-go { margin-top: 6px; font-size: 13.5px; font-weight: 550; color: var(--accent); }

/* ============ 定价 ============ */
.pricing { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; margin-top: 32px; align-items: stretch; }
.price-card { display: flex; flex-direction: column; gap: 20px; padding: 36px; background: var(--surface); border: 1px solid var(--line-strong); }
.price-card:not(.pro) .btn { margin-top: auto; }
.price-card.pro { border-top: 3px solid var(--brand); }
.price-card h3 { font-family: var(--mono); font-size: 13px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); }
/* 等宽字体没有中文字形, 回落后字距很开: 中文一律换回正文字体 */
:lang(zh) .price-card h3, :lang(zh) .eyebrow, :lang(zh) .days { font-family: var(--font); letter-spacing: 0.02em; }
.price-line { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 12px; }
.price-now { font-family: var(--font-d); font-size: clamp(44px, 4.6vw, 64px); font-weight: 600; letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.price-unit { font-size: 14px; color: var(--text-3); }
.price-until { margin-top: 8px; font-size: 14.5px; color: var(--text-2); }
.days { display: inline-block; margin-left: 6px; padding: 1px 8px; font-family: var(--mono); font-size: 12px; color: var(--accent); background: var(--accent-dim); }
.days:empty { display: none; }
.price-list { font-size: 15px; color: var(--text-2); }
ul.price-list { display: grid; gap: 8px; }
ul.price-list li { position: relative; padding-left: 20px; }
ul.price-list li::before { content: ""; position: absolute; left: 0; top: 0.8em; width: 10px; height: 2px; background: var(--brand); }
.price-trial { font-size: 14px; color: var(--text-3); }

/* ============ 9 授权选择器 + FAQ ============ */
.faq h2 { margin-bottom: 24px; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { padding: 16px 28px 16px 0; font-weight: 600; cursor: pointer; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 14px; font-family: var(--mono); color: var(--text-3); }
.faq details[open] summary::after { content: "−"; }
.faq details p { padding: 0 0 18px; font-size: 15.5px; color: var(--text-2); }

/* ============ 10 邮箱 ============ */
.sub-form { margin-top: 24px; }
.sub-row { display: flex; border: 1px solid var(--line-strong); background: var(--surface); }
.sub-row input[type="email"] { flex: 1; min-width: 0; height: 52px; padding: 0 18px; font: inherit; font-size: 16px; color: var(--text); background: transparent; border: 0; }
.sub-row input[type="email"]:focus { outline: none; }
.sub-row:focus-within { outline: 2px solid var(--accent); outline-offset: 2px; }
.sub-row .btn { height: 52px; min-height: 52px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-status { min-height: 1.6em; margin-top: 16px; font-size: 15px; color: var(--text-2); }
.form-status.is-ok { color: var(--accent); }
.form-status.is-error { color: var(--err); }

/* ============ 11 下载 ============ */
.download { text-align: center; }
.download .wrap { display: flex; flex-direction: column; align-items: center; }
.download h2 { margin: 0 auto 28px; }
.dl-meta { margin-top: 18px; font-family: var(--mono); font-size: 13px; color: var(--text-3); }
.download .lead { margin: 28px auto 0; }
.download .link-arrow { margin-top: 20px; }

/* ============ 12 页脚 ============ */
.site-footer { padding: 56px 0 44px; border-top: 1px solid var(--line); font-size: 14px; color: var(--text-3); }
.footer-inner { display: grid; gap: 20px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 10px 24px; }
.footer-links a { color: var(--text-2); }
.footer-links a:hover { color: var(--text); }
.copyright { font-size: 13px; }

/* ============ 子页面 (docs / changelog / privacy / terms) ============ */
/* 子页面 (条款 / 隐私 / 更新日志 / 文档): 正文一栏最宽 960px, 居中 —— 再宽一行太长, 条款读着累 */
.page { max-width: var(--maxw); margin: 0 auto; padding: clamp(56px, 6vw, 88px) var(--pad) clamp(72px, 8vw, 112px); }
.page > * { max-width: 960px; margin-left: auto; margin-right: auto; }
/* 使用文档是参考资料 (以后放快捷键表、配置项表、代码块), 跟首页一样用满内容区 */
body[data-page="docs"] .page > * { max-width: none; }
.page h1 { font-size: clamp(34px, 4.6vw, 54px); }
.page-sub { margin-top: 16px; font-size: 14px; color: var(--text-3); }
.prose h2 { font-size: 22px; letter-spacing: -0.02em; margin: 56px auto 18px; padding-top: 28px; border-top: 1px solid var(--line); }
.prose ul { padding-left: 20px; }
.prose li { position: relative; }
.prose li::before { content: ""; position: absolute; left: -20px; top: 13px; width: 8px; height: 1px; background: var(--line-strong); }
.prose li, .prose p { color: var(--text-2); margin-bottom: 12px; }
.prose code { font-size: 13px; padding: 2px 6px; background: var(--surface); border: 1px solid var(--line); }
.prose strong { font-weight: 600; color: var(--text); }
.prose h3 { font-size: 16px; margin: 28px 0 10px; }
.prose pre { margin: 0 0 12px; padding: 16px 20px; overflow-x: auto; font-size: 13.5px; line-height: 1.7; color: #d7dce2; background: var(--stage); }
.prose pre code { padding: 0; font-size: inherit; background: none; border: 0; color: inherit; }
.card-link { display: inline-block; margin-top: 10px; font-size: 14px; font-weight: 550; color: var(--accent); }
.log-entry { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--line); }
.log-entry h2 { display: flex; flex-wrap: wrap; align-items: baseline; gap: 14px; font-size: 22px; max-width: none; margin: 0 0 18px; }
.log-date { font-size: 13px; font-weight: 400; color: var(--text-3); letter-spacing: 0; }
.log-entry ul { padding-left: 20px; color: var(--text-2); }
.log-entry li { position: relative; margin-bottom: 8px; }
.log-entry li::before { content: ""; position: absolute; left: -20px; top: 13px; width: 8px; height: 1px; background: var(--line-strong); }

/* 404 */
.notfound { min-height: calc(70svh - 56px); display: flex; flex-direction: column; justify-content: center; }
.nf-code { font-family: var(--mono); font-size: 14px; letter-spacing: 0.08em; color: var(--text-3); margin-bottom: 12px; }
.notfound h1 { font-size: clamp(30px, 3.6vw, 48px); }
.nf-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; margin-top: 32px; }

/* simulator.html 的旧外壳 (批次 5 重做前先留着) */
.hero .sub { margin-top: 28px; max-width: 620px; font-size: 18px; color: var(--text-2); }
.section-head { max-width: 720px; margin-bottom: clamp(48px, 6vw, 88px); }
.section-sub { margin-top: 20px; font-size: 18px; color: var(--text-2); }
.try-stage { background: var(--stage); }
.try-stage .stage-inner { max-width: var(--maxw); margin: 0 auto; padding: clamp(24px, 3.5vw, 52px) var(--pad); }
.try-stage .sim { height: 600px; }
.try-caption { max-width: var(--maxw); margin: 22px auto 0; padding: 0 var(--pad); font-size: 13.5px; color: var(--text-3); }

/* ============ 窄屏 ============ */
@media (max-width: 1023px) {
  .num-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .num:nth-child(3) { padding-left: 0; border-left: 0; }
  .num:nth-child(n + 3) { border-top: 1px solid var(--line); }
  .feats, .comps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav { gap: 12px; }
  .nav-links, .nav .lang-toggle, .nav-dl { display: none; }
  .nav-menu { display: inline-flex; align-items: center; margin-left: auto; }
  .hero { min-height: calc(100svh - 56px); }
  .hero h1 { font-size: 7.2vw; }
  .hero-cta > * { flex: 1 1 100%; }
  .split, .pricing, .feats, .comps { grid-template-columns: minmax(0, 1fr); }
  .pricing .pro { order: -1; }
  .sub-row { flex-direction: column; }
  .sub-row .btn { height: 48px; min-height: 48px; }
  .footer-links { gap: 12px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}