/* CrossDriver Files — product site.
   Design tokens follow www.crossdriver.com (primary #3567ff, slate greys, lavender hero,
   orange accent, black header, dark footer). No JavaScript; works with a strict CSP
   (default-src 'none'; style-src 'self'; img-src 'self'). */

:root {
  --blue: #3567ff;
  --blue-dark: #2450d8;
  --blue-soft: #e7eeff;
  --orange-1: #ff8a00;
  --orange-2: #ff5a3d;
  --ink: #0f172a;
  --text: #1e293b;
  --muted: #64748b;
  --line: #e2e8f0;
  --panel: #f8fafc;
  --footer: #141518;
  --radius: 18px;
  --shadow: 0 30px 80px rgba(15, 35, 95, 0.18), 0 6px 18px rgba(15, 35, 95, 0.08);
  --max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
picture { display: block; }
[id] { scroll-margin-top: 84px; }
h1, h2, h3 { text-wrap: balance; }
p, li, dd { text-wrap: pretty; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 28px; }

/* ---------------------------------------------------------------- header */
.site-header { position: sticky; top: 0; z-index: 10; background: #000; }
.site-header .wrap { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: flex; align-items: center; gap: 14px; color: #fff; font-weight: 600; }
.brand:hover { text-decoration: none; }
.brand img { height: 30px; width: auto; }
.brand .product { padding-left: 14px; border-left: 1px solid #ffffff33; font-size: 16px; letter-spacing: .2px; }
.site-nav { display: flex; gap: 24px; margin-left: auto; font-size: 15px; }
.site-nav a { color: #cbd5e1; }
.site-nav a:hover { color: #fff; text-decoration: none; }
.lang-switch { position: relative; font-size: 13px; }
.lang-switch summary {
  list-style: none; cursor: pointer; color: #cbd5e1; border: 1px solid #ffffff33; border-radius: 999px;
  padding: 5px 12px; display: inline-flex; align-items: center; gap: 6px; line-height: 1.2;
}
.lang-switch summary::-webkit-details-marker { display: none; }
.lang-switch summary::after { content: "▾"; font-size: 10px; }
.lang-switch[open] summary, .lang-switch summary:hover { background: #ffffff1a; color: #fff; }
.lang-switch ul {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 10; margin: 0; padding: 6px;
  list-style: none; background: #fff; border: 1px solid var(--line); border-radius: 12px;
  box-shadow: 0 16px 40px rgba(2, 6, 23, .18); min-width: 185px; max-height: 70vh; overflow: auto;
}
.lang-switch li a { display: block; padding: 7px 12px; border-radius: 8px; color: var(--ink); white-space: nowrap; }
.lang-switch li a:hover { background: #eef2f7; text-decoration: none; }
.lang-switch li a[aria-current] { background: var(--blue); color: #fff; font-weight: 600; }

/* ---------------------------------------------------------------- buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 15px 28px; border-radius: 12px;
  font-weight: 650; font-size: 17px; line-height: 1; transition: transform .15s, box-shadow .15s, background .15s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 10px 24px rgba(53, 103, 255, .35); }
.btn-primary:hover { background: var(--blue-dark); }
.btn-ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.btn-small { padding: 9px 16px; font-size: 14px; border-radius: 9px; box-shadow: none; }
.btn svg { width: 20px; height: 20px; }

/* ---------------------------------------------------------------- hero */
.hero {
  position: relative; overflow: hidden; text-align: center; padding: 72px 0 0;
  background:
    radial-gradient(900px 480px at 85% 0%, rgba(53, 103, 255, .18), transparent 70%),
    radial-gradient(800px 420px at 0% 30%, rgba(255, 138, 0, .10), transparent 70%),
    linear-gradient(180deg, var(--blue-soft) 0%, #f5f8ff 62%, #fff 100%);
}
.badge {
  display: inline-block; padding: 7px 16px; border-radius: 999px; font-size: 14px; font-weight: 650; color: #fff;
  background: linear-gradient(135deg, var(--orange-1) 0%, var(--orange-2) 100%); box-shadow: 0 6px 16px rgba(255, 90, 61, .3);
}
.hero h1 { font-size: clamp(38px, 5.6vw, 66px); line-height: 1.08; letter-spacing: -1.5px; color: var(--ink); margin: 22px auto 18px; max-width: 980px; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, var(--blue) 0%, #7b5cff 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: clamp(18px, 2vw, 21px); color: #475569; max-width: 760px; margin: 0 auto 32px; }
.hero .actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero .fineprint { margin: 18px 0 0; font-size: 14px; color: var(--muted); }
.hero .fineprint span + span::before { content: "·"; margin: 0 10px; color: #94a3b8; }
.hero-shot { margin: 56px auto 0; max-width: 1180px; padding: 0 28px; }
.hero-shot img { border-radius: 16px; box-shadow: var(--shadow); }
/* The window's empty lower part fades into the page. */
.hero-shot { max-height: 700px; overflow: hidden; -webkit-mask-image: linear-gradient(180deg, #000 70%, transparent 100%); mask-image: linear-gradient(180deg, #000 70%, transparent 100%); }

/* ---------------------------------------------------------------- the ten highlights at a glance */
.toc { border-bottom: 1px solid var(--line); background: #fff; }
.toc ol { list-style: none; margin: 0; padding: 28px 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.toc a {
  display: flex; align-items: center; gap: 12px; height: 100%; padding: 12px 14px; border-radius: 12px;
  font-size: 14.5px; line-height: 1.35; font-weight: 600; color: #334155; transition: background .15s, color .15s;
}
.toc a:hover { background: #eef2ff; color: var(--blue); text-decoration: none; }
.toc b {
  flex: none; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; font-size: 14px;
  color: #fff; background: linear-gradient(135deg, var(--blue) 0%, #7b5cff 100%);
}

/* ---------------------------------------------------------------- sections */
section.block { padding: 104px 0; }
section.tint { background: var(--panel); }
.section-head { text-align: center; max-width: 820px; margin: 0 auto 56px; }
.eyebrow { display: block; color: var(--blue); font-weight: 700; font-size: 14px; letter-spacing: .6px; text-transform: uppercase; margin-bottom: 12px; }
h2 { font-size: clamp(30px, 3.6vw, 44px); line-height: 1.15; letter-spacing: -.8px; color: var(--ink); margin: 0 0 16px; }
.section-head p { color: #475569; font-size: 19px; margin: 0; }

.feature { display: grid; grid-template-columns: 5fr 7fr; gap: 64px; align-items: center; }
.feature + .feature { margin-top: 120px; }
.feature.flip { grid-template-columns: 7fr 5fr; }
.feature.flip .text { order: 2; }
.feature h3 { font-size: clamp(26px, 2.8vw, 34px); line-height: 1.2; letter-spacing: -.5px; color: var(--ink); margin: 0 0 16px; }
.feature p { color: #475569; margin: 0 0 18px; }
.feature ul { margin: 0; padding: 0; list-style: none; }
.feature li { position: relative; padding-left: 30px; margin: 10px 0; color: #334155; }
.feature li::before {
  content: ""; position: absolute; left: 0; top: 7px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.3l2.6 2.6L12 5.4' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat;
}
.shot { position: relative; }
.shot img { border-radius: 14px; box-shadow: var(--shadow); }
.shot::before {
  content: ""; position: absolute; inset: 8% -6% -6% 8%; border-radius: 28px; z-index: -1;
  background: linear-gradient(135deg, #dbeafe 0%, #eff6ff 100%);
}
.feature.flip .shot::before { inset: 8% 8% -6% -6%; }
.num {
  display: inline-block; margin-right: 12px; font-size: 15px; font-weight: 800; letter-spacing: .5px; vertical-align: 2px;
  background: linear-gradient(90deg, var(--orange-1) 0%, var(--orange-2) 100%); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-head .num { display: block; margin: 0 0 6px; font-size: 18px; }
.feature .aside { font-size: 15px; color: var(--muted); margin: 18px 0 0; }

/* Text panels standing in for a screenshot (03 formats, 09 drives). */
.panel { border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); padding: 30px; box-shadow: 0 12px 40px rgba(15, 35, 95, .07); }
.panel-title { margin: 0 0 18px; font-size: 13px; font-weight: 700; letter-spacing: .6px; text-transform: uppercase; color: var(--muted); }
.fgroup + .fgroup { margin-top: 18px; }
.flabel { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 650; color: #334155; }
.formats-panel .formats { justify-content: flex-start; gap: 8px; max-width: none; }
.formats-panel .formats span { padding: 8px 14px; font-size: 15px; }
.drives-panel dl { margin: 0; }
.drives-panel dl div { display: grid; grid-template-columns: 11em 1fr; gap: 16px; padding: 14px 0; border-top: 1px solid var(--line); }
.drives-panel dl div:first-child { border-top: 0; padding-top: 0; }
.drives-panel dt { font-weight: 700; color: var(--ink); font-size: 15px; }
.drives-panel dd { margin: 0; color: #475569; font-size: 15px; }
.pill { display: inline-block; font-size: 13px; font-weight: 700; color: var(--blue); background: #eef2ff; border-radius: 999px; padding: 4px 12px; margin-bottom: 14px; }

/* ---------------------------------------------------------------- keyboard */
.keys { background: radial-gradient(1000px 500px at 80% 0%, #1e3a8a 0%, transparent 60%), #0b1022; color: #e2e8f0; }
.keys h2, .keys .section-head p { color: #fff; }
.keys .section-head p { color: #cbd5e1; }
.keygrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.key { background: #111a35; border: 1px solid #ffffff14; border-radius: 16px; padding: 22px 22px 20px; }
.key kbd {
  display: inline-block; min-width: 46px; padding: 9px 12px; margin: 0 6px 6px 0; text-align: center;
  font: 650 17px/1 system-ui, -apple-system, sans-serif; color: #0f172a; background: linear-gradient(180deg, #fff 0%, #e2e8f0 100%);
  border-radius: 9px; box-shadow: 0 3px 0 #94a3b8, 0 6px 14px rgba(0, 0, 0, .35);
}
.key span { display: block; margin-top: 12px; color: #cbd5e1; font-size: 15px; }
.keys .note { text-align: center; margin-top: 40px; color: #94a3b8; font-size: 15px; }

/* ---------------------------------------------------------------- format chips */
.formats { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; max-width: 900px; margin: 0 auto; }
.formats span {
  padding: 12px 20px; border-radius: 12px; background: #fff; border: 1px solid var(--line); font-weight: 700; color: var(--ink);
  box-shadow: 0 4px 10px rgba(15, 35, 95, .05);
}
.formats span.hot { color: #fff; border-color: transparent; background: linear-gradient(135deg, var(--blue) 0%, #7b5cff 100%); }

/* ---------------------------------------------------------------- trust cards */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: #fff; }
.card b { display: block; font-size: 30px; color: var(--blue); margin-bottom: 8px; }
.card h3 { margin: 0 0 8px; font-size: 19px; color: var(--ink); }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }

/* ---------------------------------------------------------------- dark showcase */
.dark-show { background: linear-gradient(180deg, #0b1022 0%, #1b1f4a 100%); color: #fff; text-align: center; padding: 104px 0 0; overflow: hidden; }
.dark-show h2 { color: #fff; }
.dark-show p { color: #cbd5e1; font-size: 19px; margin: 0 0 48px; }
.dark-show img { max-width: 1100px; margin: 0 auto -6px; border-radius: 16px 16px 0 0; box-shadow: 0 -10px 80px rgba(123, 92, 255, .35); }

/* ---------------------------------------------------------------- FAQ */
.faq { max-width: 860px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--line); padding: 20px 4px; }
.faq summary { cursor: pointer; font-weight: 650; font-size: 18px; color: var(--ink); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--blue); font-size: 24px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: #475569; margin: 12px 0 0; }

/* ---------------------------------------------------------------- final call to action */
.cta { text-align: center; padding: 96px 0; background: linear-gradient(135deg, #2450d8 0%, #3567ff 45%, #7b5cff 100%); color: #fff; }
.cta h2 { color: #fff; }
.cta p { color: #e0e7ff; font-size: 19px; margin: 0 0 32px; }
.cta .btn-primary { background: #fff; color: var(--blue); box-shadow: 0 12px 30px rgba(0, 0, 0, .25); }
.cta .meta { margin-top: 18px; font-size: 14px; color: #c7d2fe; }
.cta .meta a { color: #fff; }

/* ---------------------------------------------------------------- footer (as www.crossdriver.com) */
.site-footer { background: var(--footer); color: #cbd5e1; padding: 64px 0 28px; font-size: 15px; }
.site-footer .cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.site-footer h4 { color: #fff; font-size: 16px; margin: 0 0 16px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 10px 0; }
.site-footer a { color: #cbd5e1; }
.site-footer .legal { border-top: 1px solid #ffffff1f; margin-top: 44px; padding-top: 22px; text-align: center; color: #94a3b8; font-size: 13.5px; }
.site-footer .legal p { margin: 6px 0; }

/* ---------------------------------------------------------------- responsive */
@media (max-width: 980px) {
  .site-nav { display: none; }
  .lang-switch { margin-left: auto; }
  .toc ol { grid-template-columns: repeat(2, 1fr); }
  .feature, .feature.flip { grid-template-columns: 1fr; gap: 36px; }
  .feature.flip .text { order: 0; }
  .keygrid, .cards { grid-template-columns: repeat(2, 1fr); }
  .site-footer .cols { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .brand .product { display: none; }
  .header-download { display: none; }
  section.block { padding: 72px 0; }
  .cards { grid-template-columns: 1fr; }
  .keygrid { gap: 10px; }
  .key { padding: 16px 14px 14px; }
  .key kbd { min-width: 32px; padding: 7px 8px; margin: 0 4px 4px 0; font-size: 14px; }
  .toc ol { grid-template-columns: 1fr; gap: 2px; padding: 16px 0; }
  .toc a { padding: 8px 10px; }
  .panel { padding: 22px; }
  .drives-panel dl div { grid-template-columns: 1fr; gap: 4px; }
}
/* windows.crossdriver.com — 效果图专用样式，叠在 base.css（与 files.crossdriver.com 同一套品牌样式）之上。
   与 Files 站的区别：首屏不用渐变字和大色块，多用真实截图、表格和实测数字。 */

.hero { background: linear-gradient(180deg, #eef3ff 0%, #f7f9ff 70%, #fff 100%); padding-top: 80px; }
.hero h1 { letter-spacing: -1px; }
.hero h1 .hl { color: var(--blue); }
.hero .lead { max-width: 700px; }
.badge-plain {
  display: inline-block; padding: 6px 14px; border-radius: 999px; font-size: 14px; font-weight: 600;
  color: #9a3412; background: #fff7ed; border: 1px solid #fed7aa;
}

/* 首屏：主窗口 + 叠在右下角的 Excel 窗口（两张都是真实截图） */
.stage { position: relative; max-width: 1180px; margin: 60px auto 0; padding: 0 28px 120px; }
.stage .main { width: 86%; border-radius: 14px; box-shadow: var(--shadow); }
.stage .app {
  position: absolute; right: 28px; bottom: 30px; width: 52%;
  border-radius: 10px; overflow: hidden; background: #fff;
  box-shadow: 0 40px 90px rgba(15, 35, 95, .30), 0 8px 20px rgba(15, 35, 95, .12);
  border: 1px solid #d5dbe6;
}
.stage .app .bar { height: 28px; background: #f1f3f6; border-bottom: 1px solid #e2e6ec; display: flex; align-items: center; gap: 7px; padding: 0 10px; }
.stage .app .bar i { width: 11px; height: 11px; border-radius: 50%; background: #d4d8de; }
.stage .note {
  position: absolute; right: 40%; bottom: 0; font-size: 14px; color: var(--muted);
}
.stage .note b { color: var(--ink); }

/* 实测过的软件 */
.tested { border-bottom: 1px solid var(--line); }
.tested .wrap { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 26px; padding: 26px 28px; font-size: 15.5px; color: #475569; }
.tested strong { color: var(--ink); font-weight: 650; margin-right: 6px; }
.tested span { white-space: nowrap; }
.tested a { margin-left: auto; font-weight: 600; }

/* 文字 + 截图的通用两栏 */
.feature .shot.plain::before { display: none; }
.shot.crop img { border: 1px solid var(--line); box-shadow: 0 18px 50px rgba(15, 35, 95, .12); }
.steps { counter-reset: s; margin: 26px 0 0; padding: 0; list-style: none; }
.steps li { counter-increment: s; position: relative; padding: 0 0 0 44px; margin: 0 0 16px; color: #334155; }
.steps li::before {
  content: counter(s); position: absolute; left: 0; top: 0; width: 28px; height: 28px; border-radius: 8px;
  display: grid; place-items: center; font-size: 14px; font-weight: 700; color: var(--blue); background: #eef2ff;
}
.steps li b { display: block; color: var(--ink); }

/* App 里的“安装前限制”横幅的网页版复刻 */
.window {
  border-radius: 12px; background: #fff; border: 1px solid #d9dee7; overflow: hidden;
  box-shadow: 0 30px 70px rgba(15, 35, 95, .16);
}
.window .titlebar { height: 38px; display: flex; align-items: center; gap: 8px; padding: 0 14px; background: #f3f4f7; border-bottom: 1px solid #e5e7eb; font-size: 13px; color: #475569; }
.window .titlebar i { width: 12px; height: 12px; border-radius: 50%; }
.window .titlebar i:nth-child(1) { background: #ff5f57; }
.window .titlebar i:nth-child(2) { background: #febc2e; }
.window .titlebar i:nth-child(3) { background: #28c840; }
.window .titlebar span { margin-left: 10px; }
.window .content { padding: 22px 24px 24px; }
.recipe-head { display: flex; gap: 14px; align-items: center; margin-bottom: 16px; }
.recipe-head .ico { width: 44px; height: 44px; border-radius: 10px; background: #fde7e3; display: grid; place-items: center; font-weight: 800; color: #c2410c; }
.recipe-head b { display: block; color: var(--ink); font-size: 16px; }
.recipe-head small { color: var(--muted); font-size: 13px; }
.caveat { border-radius: 8px; padding: 12px 14px; background: rgba(239, 68, 68, .07); border: 1px solid rgba(239, 68, 68, .35); font-size: 13.5px; line-height: 1.55; color: #1f2937; }
.caveat .t { display: flex; gap: 8px; align-items: flex-start; font-weight: 650; margin-bottom: 6px; }
.caveat .t svg { flex: none; width: 17px; height: 17px; margin-top: 2px; }
.caveat p { margin: 0 0 8px; }
.caveat .alt { font-weight: 650; margin: 8px 0 4px; }
.caveat ul { margin: 0; padding-left: 16px; }
.caveat li { margin: 3px 0; }
.caveat .ack { display: flex; gap: 8px; align-items: center; margin-top: 10px; font-weight: 500; }
.caveat .ack i { width: 14px; height: 14px; border: 1px solid #94a3b8; border-radius: 3px; background: #fff; }
.window .buttons { display: flex; justify-content: flex-end; gap: 10px; margin-top: 16px; }
.window .buttons span { padding: 7px 16px; border-radius: 7px; font-size: 13.5px; font-weight: 600; background: #eef0f4; color: #334155; }
.window .buttons span.primary { background: #c7d2fe; color: #fff; }

/* Office 版本表 */
.vtable { width: 100%; border-collapse: collapse; font-size: 15.5px; background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.vtable th, .vtable td { text-align: left; padding: 15px 18px; border-top: 1px solid var(--line); vertical-align: top; }
.vtable thead th { border-top: 0; background: var(--panel); font-size: 13px; letter-spacing: .4px; color: var(--muted); font-weight: 700; }
.vtable td:first-child { font-weight: 650; color: var(--ink); white-space: nowrap; }
.vtable td.note { color: #64748b; font-size: 14.5px; }
.st { display: inline-block; font-weight: 650; font-size: 14px; padding: 2px 10px; border-radius: 999px; white-space: nowrap; }
.st.ok { color: #15803d; background: #dcfce7; }
.st.wait { color: #a16207; background: #fef9c3; }
.st.no { color: #b91c1c; background: #fee2e2; }
.table-foot { margin: 18px 0 0; font-size: 14.5px; color: var(--muted); }

/* 截图占位（效果图阶段还没有干净的截图） */
.placeholder {
  aspect-ratio: 16 / 10; border: 2px dashed #c3cde0; border-radius: 16px; background: repeating-linear-gradient(135deg, #f8fafc 0 14px, #f1f5f9 14px 28px);
  display: grid; place-items: center; text-align: center; color: #64748b; font-size: 15px; padding: 30px;
}
.placeholder b { display: block; color: #334155; font-size: 17px; margin-bottom: 6px; }

/* 速度 */
.speed { background: #0d1326; color: #e2e8f0; }
.speed h2 { color: #fff; }
.speed .section-head p { color: #b6c2d9; }
.bars { max-width: 860px; margin: 0 auto; }
.bar-row { display: grid; grid-template-columns: 250px 1fr 92px; gap: 18px; align-items: center; padding: 16px 0; border-top: 1px solid #ffffff14; }
.bar-row:first-child { border-top: 0; }
.bar-row .label { font-size: 16px; color: #e2e8f0; }
.bar-row .label small { display: block; color: #8b97b0; font-size: 13.5px; margin-top: 2px; }
.bar-row .track { height: 12px; border-radius: 6px; background: #ffffff10; position: relative; }
.bar-row .fill { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 6px; background: #5b82ff; }
.bar-row .fill.range { background: #5b82ff55; }
.bar-row.ref .fill { background: #94a3b8; }
.bar-row .val { font-variant-numeric: tabular-nums; font-weight: 700; color: #fff; text-align: right; font-size: 18px; }
.bar-row.ref .val, .bar-row.ref .label { color: #9aa6bd; }
.speed .foot { max-width: 860px; margin: 34px auto 0; font-size: 14px; color: #8b97b0; }

/* 细节卡片 */
.details { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.detail { border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 30px 26px; background: #fff; }
.detail h3 { margin: 0 0 10px; font-size: 20px; color: var(--ink); }
.detail p { margin: 0; color: #475569; font-size: 16px; }
.detail .fig { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--line); display: flex; gap: 28px; font-size: 14px; color: var(--muted); }
.detail .fig b { display: block; font-size: 24px; color: var(--ink); font-variant-numeric: tabular-nums; }
.detail .fig .good b { color: var(--blue); }
.glyphs { font-size: 26px; letter-spacing: 6px; color: var(--ink); margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--line); }

/* 价格 */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 980px; margin: 0 auto; }
.plan { border: 1px solid var(--line); border-radius: 20px; padding: 34px 34px 30px; background: #fff; display: flex; flex-direction: column; }
.plan.pro { border: 2px solid var(--blue); box-shadow: 0 24px 60px rgba(53, 103, 255, .14); }
.plan h3 { margin: 0; font-size: 22px; color: var(--ink); }
.plan .who { color: var(--muted); margin: 6px 0 20px; font-size: 15.5px; }
.plan .price { font-size: 34px; font-weight: 750; color: var(--ink); letter-spacing: -.5px; }
.plan .price small { font-size: 15px; font-weight: 500; color: var(--muted); letter-spacing: 0; margin-left: 6px; }
.plan ul { list-style: none; margin: 22px 0 26px; padding: 0; flex: 1; }
.plan li { position: relative; padding-left: 26px; margin: 10px 0; color: #334155; font-size: 16px; }
.plan li::before { content: ""; position: absolute; left: 2px; top: 9px; width: 12px; height: 7px; border-left: 2px solid var(--blue); border-bottom: 2px solid var(--blue); transform: rotate(-45deg); }
.plan .btn { justify-content: center; }
.plans-foot { max-width: 980px; margin: 26px auto 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; font-size: 14.5px; color: #475569; }
.plans-foot b { display: block; color: var(--ink); margin-bottom: 4px; }

@media (max-width: 980px) {
  .stage .main { width: 100%; }
  .stage .app { position: relative; right: auto; bottom: auto; width: 88%; margin: -60px 0 0 auto; }
  .stage { padding-bottom: 60px; }
  .stage .note { position: static; margin-top: 16px; text-align: center; }
  .details, .plans, .plans-foot { grid-template-columns: 1fr; }
  .bar-row { grid-template-columns: 1fr 70px; }
  .bar-row .track { grid-column: 1 / -1; grid-row: 2; }
  .tested a { margin-left: 0; }
  .vtable td.note { display: none; }
  .vtable thead th:last-child { display: none; }
}
@media (max-width: 560px) {
  .vtable td:first-child { white-space: normal; }
  .vtable th, .vtable td { padding: 12px 12px; }
}

/* 修正：横幅里的列表不用 .feature 的勾选圆点 */
.feature .caveat li { padding-left: 0; margin: 3px 0; color: inherit; }
.feature .caveat li::before { display: none; }
.feature .caveat ul { list-style: disc; padding-left: 18px; }

/* ---------------------------------------------------------------- 第二版新增 */
/* 效果图角标：还没有真实截图的地方先放设计稿，图上标明 */
.concept { position: relative; }
.concept::after {
  content: attr(data-label); position: absolute; top: 12px; left: 12px; z-index: 2;
  font-size: 12px; font-weight: 700; letter-spacing: .5px; color: #fff;
  background: rgba(15, 23, 42, .72); padding: 4px 10px; border-radius: 999px;
}
.shot img.flat { box-shadow: var(--shadow); border-radius: 14px; }

/* 三种引擎 */
.engines { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 56px; }
.engine { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: 28px 28px 24px; position: relative; }
.engine .chip {
  display: inline-flex; align-items: center; gap: 8px; font: 700 13px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--ink); background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 7px 10px; margin-bottom: 18px;
}
.engine .chip i { width: 10px; height: 10px; border-radius: 3px; background: var(--blue); }
.engine.native .chip i { background: #16a34a; }
.engine.fusion .chip i { background: linear-gradient(135deg, #16a34a 50%, var(--blue) 50%); }
.engine h3 { margin: 0 0 4px; font-size: 21px; color: var(--ink); }
.engine .ui-name { font-size: 14px; color: var(--muted); margin: 0 0 14px; }
.engine p { margin: 0; color: #475569; font-size: 15.5px; }
.engine .tag { position: absolute; top: 24px; right: 24px; font-size: 12px; font-weight: 700; color: #15803d; background: #dcfce7; border-radius: 999px; padding: 3px 10px; }
.engine-shot { display: grid; grid-template-columns: 5fr 7fr; gap: 56px; align-items: center; }
.engine-shot img { border-radius: 14px; box-shadow: var(--shadow); max-width: 420px; margin: 0 auto; }

/* 与 Mac 融为一体：小卡片网格 */
.macgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.mac { border: 1px solid var(--line); border-radius: 16px; padding: 22px 22px 20px; background: #fff; }
.mac h3 { margin: 0 0 8px; font-size: 17px; color: var(--ink); }
.mac p { margin: 0; font-size: 14.5px; color: #475569; }

/* 两张图并排 */
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
.pair figure { margin: 0; }
.pair figcaption { margin-top: 14px; font-size: 14.5px; color: var(--muted); text-align: center; }
.pair img { border-radius: 14px; box-shadow: 0 18px 50px rgba(15, 35, 95, .14); }

@media (max-width: 980px) {
  .engines, .pair, .engine-shot { grid-template-columns: 1fr; }
  .macgrid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .macgrid { grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------------- 第三版：以客户价值为主 */
.values { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 28px; margin: 26px 0 0; font-size: 15.5px; color: #334155; }
.values span { display: inline-flex; align-items: center; gap: 8px; }
.values span::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--blue); }

/* 三步用起来 */
.howto { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.step { background: #fff; border: 1px solid var(--line); border-radius: 20px; overflow: hidden; display: flex; flex-direction: column; }
.step .pic { aspect-ratio: 16 / 10; background: linear-gradient(180deg, #eef3ff, #f8fafc); display: grid; place-items: center; overflow: hidden; border-bottom: 1px solid var(--line); }
.step .pic img { width: 100%; height: 100%; object-fit: cover; object-position: left top; }
.step .pic img.icon { width: 132px; height: 132px; object-fit: contain; filter: drop-shadow(0 14px 24px rgba(15, 35, 95, .22)); }
.step .body { padding: 24px 26px 26px; }
.step .n { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; background: var(--blue); color: #fff; font-weight: 750; font-size: 15px; margin-bottom: 12px; }
.step h3 { margin: 0 0 8px; font-size: 21px; color: var(--ink); }
.step p { margin: 0; color: #475569; font-size: 15.5px; }

/* 好处卡片 */
.benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.benefit { border: 1px solid var(--line); border-radius: 18px; padding: 28px; background: #fff; }
.benefit b { display: block; font-size: 30px; line-height: 1.1; color: var(--blue); margin-bottom: 10px; letter-spacing: -.5px; }
.benefit h3 { margin: 0 0 8px; font-size: 19px; color: var(--ink); }
.benefit p { margin: 0; color: #475569; font-size: 15.5px; }

/* 对比表 */
.compare { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 16px; background: #fff; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.compare th, .compare td { padding: 18px 20px; text-align: left; border-top: 1px solid var(--line); vertical-align: top; }
.compare thead th { border-top: 0; font-size: 15px; color: var(--muted); font-weight: 650; background: var(--panel); }
.compare thead th.us { color: #fff; background: var(--blue); font-weight: 750; }
.compare td.us { background: #f3f6ff; color: var(--ink); font-weight: 650; }
.compare td:first-child { color: var(--ink); font-weight: 650; white-space: nowrap; }
.compare td { color: #475569; }

/* 适合谁 */
.who-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.aud { border-radius: 18px; padding: 26px 24px; background: #fff; border: 1px solid var(--line); }
.aud h3 { margin: 0 0 6px; font-size: 18px; color: var(--ink); }
.aud .apps { font-size: 14px; color: var(--blue); font-weight: 650; margin-bottom: 10px; }
.aud p { margin: 0; font-size: 15px; color: #475569; }

/* 三个版本 */
.editions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.edition { border: 1px solid var(--line); border-radius: 18px; padding: 26px; background: #fff; position: relative; }
.edition.rec { border: 2px solid var(--blue); }
.edition h3 { margin: 0 0 4px; font-size: 19px; color: var(--ink); }
.edition .for { font-size: 14px; color: var(--muted); margin: 0 0 12px; }
.edition p { margin: 0; font-size: 15px; color: #475569; }
.edition .tag { position: absolute; top: 22px; right: 22px; font-size: 12px; font-weight: 700; border-radius: 999px; padding: 3px 10px; color: #fff; background: var(--blue); }
.edition .tag.new { background: #16a34a; }

@media (max-width: 980px) {
  .howto, .benefits, .editions { grid-template-columns: 1fr; }
  .who-grid { grid-template-columns: repeat(2, 1fr); }
  .compare { font-size: 14px; }
  .compare th, .compare td { padding: 12px 10px; }
  .compare td:first-child { white-space: normal; }
}
@media (max-width: 560px) { .who-grid { grid-template-columns: 1fr; } }

/* 支持的软件 */
.soft-group + .soft-group { margin-top: 44px; }
.soft-group h3 { font-size: 18px; color: var(--ink); margin: 0 0 16px; display: flex; align-items: center; gap: 10px; }
.soft-group h3::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: #16a34a; }
.soft-group.soon h3::before { background: #f59e0b; }
.softs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.soft { display: grid; grid-template-columns: 48px 1fr; grid-template-rows: auto auto; column-gap: 14px; align-items: center; padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.soft i { grid-row: 1 / 3; width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; color: #fff; font-style: normal; font-weight: 800; font-size: 22px; box-shadow: inset 0 -10px 18px rgba(0,0,0,.12); }
.soft b { color: var(--ink); font-size: 16px; line-height: 1.3; }
.soft span { color: var(--muted); font-size: 13.5px; line-height: 1.4; }
.soft-group.soon .soft { background: var(--panel); }
@media (max-width: 980px) { .softs { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .softs { grid-template-columns: 1fr; } }

/* 分层存储示意 */
.layers-demo { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.ld { border: 1px solid var(--line); border-radius: 18px; padding: 26px; background: #fff; }
.ld.us { border: 2px solid var(--blue); background: #f7f9ff; }
.ld h3 { margin: 0 0 18px; font-size: 18px; color: var(--ink); }
.ld p { margin: 16px 0 0; font-size: 15px; color: #475569; }
.stack { display: flex; flex-direction: column; gap: 6px; }
.stack span { display: block; border-radius: 8px; padding: 9px 12px; font-size: 13.5px; font-weight: 650; }
.stack .full { background: #e2e8f0; color: #475569; height: 40px; }
.stack .shared { background: var(--blue); color: #fff; height: 64px; display: flex; align-items: center; }
.stack .diff { background: #dbe5ff; color: var(--blue); width: 34%; padding: 5px 12px; }
.feature li b { color: var(--ink); }
@media (max-width: 980px) { .layers-demo { grid-template-columns: 1fr; } }

/* 适合谁：人物场景卡片 */
.personas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.persona { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 26px 26px 22px; display: flex; flex-direction: column; }
.persona h3 { margin: 0 0 10px; font-size: 19px; color: var(--ink); }
.persona .hook { margin: 0 0 10px; font-size: 16.5px; font-weight: 650; color: var(--blue); line-height: 1.45; }
.persona .pain { margin: 0 0 10px; font-size: 15px; color: var(--muted); }
.persona .gain { margin: 0 0 16px; font-size: 15px; color: #334155; padding-left: 14px; border-left: 3px solid var(--blue); flex: 1; }
.persona .tags { font-size: 13px; font-weight: 650; color: #475569; background: var(--panel); border-radius: 8px; padding: 7px 10px; }
@media (max-width: 980px) { .personas { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .personas { grid-template-columns: 1fr; } }

/* macOS 28 */
.mac28 { background: linear-gradient(135deg, #0b1022 0%, #1b2a6b 100%); color: #e2e8f0; }
.mac28 h2 { color: #fff; }
.mac28 p { color: #c7d2fe; font-size: 17px; }
.m28 { display: grid; grid-template-columns: 7fr 5fr; gap: 56px; align-items: center; }
.m28-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.m28-list li { background: #ffffff10; border: 1px solid #ffffff1f; border-radius: 14px; padding: 16px 18px; color: #c7d2fe; font-size: 15px; }
.m28-list b { display: block; color: #fff; font-size: 17px; margin-bottom: 2px; }

/* 预览版横幅 */
.preview-banner { max-width: 980px; margin: 0 auto 28px; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 22px 26px; border-radius: 18px; background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%); border: 1px solid #fed7aa; }
.preview-banner b { display: block; color: #9a3412; font-size: 18px; margin-bottom: 4px; }
.preview-banner span { color: #7c2d12; font-size: 15px; }
.preview-banner .btn { flex: none; }
@media (max-width: 980px) { .m28 { grid-template-columns: 1fr; gap: 28px; } .preview-banner { flex-direction: column; align-items: flex-start; } }

/* 桌面快捷键键帽 */
.kbd-row { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 20px; font-size: 14px; color: #475569; }
.kbd-row span { display: inline-flex; align-items: center; gap: 4px; }
.kbd-row kbd { display: inline-block; min-width: 30px; padding: 5px 8px; text-align: center; font: 650 13px/1 system-ui, -apple-system, sans-serif; color: var(--ink); background: linear-gradient(180deg, #fff 0%, #eef2f7 100%); border: 1px solid #cbd5e1; border-radius: 7px; box-shadow: 0 2px 0 #cbd5e1; margin-right: 2px; }

/* 查一查你的软件 */
.finder { margin-top: 56px; border-radius: 22px; padding: 34px 36px; background: linear-gradient(135deg, #eef3ff 0%, #f8faff 100%); border: 1px solid #dbe4ff; }
.finder-head h3 { margin: 0 0 6px; font-size: 24px; color: var(--ink); }
.finder-head p { margin: 0 0 18px; color: #475569; }
.finder-search { display: flex; gap: 12px; }
.finder-search input { flex: 1; font-size: 17px; padding: 14px 18px; border-radius: 12px; border: 1px solid #c7d2fe; background: #fff; outline: none; }
.finder-search input:focus { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(53, 103, 255, .15); }
.finder-out:empty { display: none; }
.finder-out { margin-top: 20px; }
.finder-wait { color: var(--muted); margin: 0; }
.finder-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.finder-list li { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.finder-list b { color: var(--ink); }
.finder-list .why { color: var(--muted); font-size: 14.5px; }
.tag { font-size: 12.5px; font-weight: 700; border-radius: 999px; padding: 3px 10px; }
.tag.ok { color: #15803d; background: #dcfce7; }
.tag.info { color: #1d4ed8; background: #dbeafe; }
.finder-more { margin: 12px 0 0; font-size: 14.5px; color: var(--muted); }
.finder-miss { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 22px 24px; }
.miss-title { margin: 0 0 4px; font-size: 18px; font-weight: 700; color: var(--ink); }
.miss-sub { margin: 0 0 16px; color: #475569; font-size: 15px; }
.finder-req { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px 14px; align-items: end; }
.finder-req label { display: flex; flex-direction: column; gap: 6px; font-size: 13.5px; font-weight: 600; color: #334155; }
.finder-req label.wide { grid-column: 1 / 4; }
.finder-req select { height: 43px; }
.finder-req input, .finder-req select, .finder-req textarea { font: inherit; font-size: 15px; font-weight: 400; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.finder-req .btn { justify-content: center; }
.finder-done { background: #f0fdf4; border: 1px solid #bbf7d0; border-radius: 14px; padding: 18px 20px; }
.finder-done b { display: block; color: #15803d; font-size: 17px; margin-bottom: 4px; }
.finder-done span { color: #166534; }
@media (max-width: 980px) { .finder-req { grid-template-columns: 1fr 1fr; } .finder-req label.wide { grid-column: 1 / -1; } }
@media (max-width: 560px) { .finder { padding: 24px 20px; } .finder-search { flex-direction: column; } .finder-req { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------- 正式站：<picture> 包裹后的尺寸 */
.stage .main { width: 86%; }
.stage .main img { width: 100%; border-radius: 14px; box-shadow: var(--shadow); }
.stage .app img { width: 100%; }
.step .pic picture { width: 100%; height: 100%; display: grid; place-items: center; }
.step .pic picture:has(img.icon) { width: auto; height: auto; }
.shot picture img { width: 100%; }
.soft-group h3 small { font-weight: 500; color: var(--muted); font-size: 14px; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-scroll .compare { min-width: 760px; }

/* ---------------------------------------------------------------- Mac 版 Excel 做不到的 */
#excel .compare th:nth-child(2), #excel .compare td:nth-child(2) { width: 44%; }
#excel .table-scroll .compare.excel { min-width: 620px; }
#excel .macgrid.three { grid-template-columns: repeat(3, 1fr); margin-top: 28px; }
#excel .table-foot { margin: 18px 0 0; text-align: center; font-size: 13.5px; color: var(--muted); }
@media (max-width: 980px) { #excel .macgrid.three { grid-template-columns: 1fr; } }

/* 顶部导航：一行放下；放不下时先收起次要的几项（好处、适合谁、功能） */
.site-nav a, .header-download, .lang-switch summary { white-space: nowrap; }
.site-header .brand, .header-download, .lang-switch { flex-shrink: 0; }
@media (max-width: 1600px) { .site-nav a.opt { display: none; } }
@media (max-width: 1240px) { .site-nav { gap: 18px; font-size: 14.5px; } }
@media (max-width: 1100px) { .site-header .wrap { gap: 18px; } .site-nav { gap: 14px; } }
/* 首屏图注：放在左边、主图下方，不压到右下角的 Excel 截图（长语言会换行） */
@media (min-width: 981px) { .stage .note { left: 28px; right: auto; max-width: 42%; } }
#excel .sub-head { text-align: center; margin: 72px auto 28px; max-width: 760px; }
#excel .sub-head h3 { margin: 0 0 10px; font-size: 28px; color: var(--ink); }
#excel .sub-head .tag { display: inline-block; vertical-align: middle; margin-left: 8px; font-size: 13px; font-weight: 700; color: #b45309; background: #fef3c7; border-radius: 999px; padding: 3px 10px; }
#excel .sub-head p { margin: 0; color: #475569; font-size: 17px; }
#excel .sub-head .tag.ok { color: #15803d; background: #dcfce7; }
#excel .cad-shot { max-width: 980px; margin: 0 auto 36px; }
#excel .cad-shot figcaption { margin-top: 14px; text-align: center; color: #64748b; font-size: 14px; }

/* 本站数据说明 */
#data .macgrid.three { grid-template-columns: repeat(3, 1fr); }
#data .table-foot { margin: 18px 0 0; text-align: center; font-size: 14px; color: var(--muted); }
.finder-req .req-note { grid-column: 1 / -1; margin: 0; font-size: 13px; color: var(--muted); }
@media (max-width: 980px) { #data .macgrid.three { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------- help center (/help/) */
.help-hero { background: linear-gradient(180deg, #eef2ff 0%, #fff 100%); padding: 64px 0 36px; }
.help-hero h1 { font-size: 44px; line-height: 1.15; margin: 0 0 12px; color: var(--ink); }
.help-hero .lead { font-size: 19px; color: #475569; margin: 0 0 26px; max-width: 760px; }
.help-quick { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.help-quick a {
  display: inline-block; padding: 8px 16px; border-radius: 999px; background: #fff; border: 1px solid var(--line);
  color: var(--ink); font-size: 15px; box-shadow: 0 2px 6px rgba(15, 35, 95, .05);
}
.help-quick a:hover { border-color: var(--blue); color: var(--blue); text-decoration: none; }
.help-layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 56px; padding-top: 40px; padding-bottom: 96px; }
.help-toc { position: sticky; top: 92px; align-self: start; max-height: calc(100vh - 110px); overflow-y: auto; font-size: 14.5px; }
.help-toc h2 { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 10px; }
.help-toc a.sec { display: block; font-weight: 650; color: var(--ink); margin: 14px 0 4px; }
.help-toc ul { list-style: none; margin: 0; padding: 0 0 0 10px; border-left: 2px solid var(--line); }
.help-toc li a { display: block; padding: 3px 0 3px 10px; color: #475569; }
.help-toc li a:hover { color: var(--blue); text-decoration: none; }
.help-body { max-width: 820px; }
.help-sec { padding-bottom: 28px; margin-bottom: 36px; border-bottom: 1px solid var(--line); }
.help-sec > h2 { font-size: 30px; margin: 0 0 8px; color: var(--ink); }
.help-body article { padding-top: 18px; }
.help-body article h3 { font-size: 21px; margin: 0 0 8px; color: var(--ink); }
.help-body article p, .help-body article li { color: #334155; }
.help-body article p { margin: 0 0 12px; }
.help-body article ol, .help-body article ul { margin: 0 0 12px; padding-left: 24px; }
.help-body article li { margin: 4px 0; }
.help-body .ui { font-weight: 600; color: var(--ink); }
.help-body kbd, .help-body code {
  font: 14px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--panel); border: 1px solid var(--line);
  border-radius: 6px; padding: 1px 6px;
}
.help-body .note { background: var(--blue-soft); border-radius: 12px; padding: 12px 16px; margin: 0 0 12px; font-size: 15.5px; }
.help-body .warn { background: #fff4e5; border-radius: 12px; padding: 12px 16px; margin: 0 0 12px; font-size: 15.5px; }
.help-contact { background: var(--panel); border-radius: var(--radius); padding: 28px 32px; }
.help-contact h2 { margin: 0 0 8px; font-size: 24px; color: var(--ink); }
.help-page .site-footer .legal p a { color: #cbd5e1; }
@media (max-width: 980px) {
  .help-layout { grid-template-columns: 1fr; gap: 24px; }
  .help-toc { position: static; max-height: none; }
  .help-hero h1 { font-size: 34px; }
}
.help-body table.keys { border-collapse: collapse; margin: 0 0 12px; font-size: 15.5px; }
.help-body table.keys td { border-bottom: 1px solid var(--line); padding: 7px 18px 7px 0; vertical-align: top; }

/* ── 软件落地页（/apps/、/apps/<软件>/，2026-11-07）────────────────────── */
.app-hero { padding-bottom: 56px; }
.app-hero h1 { font-size: clamp(32px, 4.6vw, 54px); }
.crumbs { font-size: 14px; color: var(--muted); }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--blue); }
.app-shot { margin-top: 40px; max-width: 1010px; }
.app-shot img { width: 100%; height: auto; border-radius: 14px; box-shadow: 0 30px 60px rgba(15, 23, 42, .18); }
.app-two { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.app-two h2 { font-size: 28px; margin: 0 0 14px; }
.app-two p { color: #334155; font-size: 17px; }
.checks { list-style: none; margin: 0; padding: 0; }
.checks li { position: relative; padding: 0 0 0 30px; margin: 0 0 12px; color: #334155; font-size: 16.5px; }
.checks li::before { content: "✓"; position: absolute; left: 0; top: 0; color: #15803d; font-weight: 700; }
.setups { display: grid; gap: 18px; }
.setup { border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; background: #fff; }
.setup h3 { margin: 0 0 4px; font-size: 19px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.setup .edition { margin: 0 0 10px; color: var(--muted); font-size: 14.5px; }
.setup > p { margin: 0 0 10px; color: #334155; }
.setup .need b { margin-right: 6px; color: var(--ink); }
.setup .caveat { margin: 4px 0 12px; }
.setup .caveat.warning { background: rgba(234, 179, 8, .08); border-color: rgba(202, 138, 4, .4); }
.setup details summary { cursor: pointer; color: var(--blue); font-weight: 600; font-size: 14.5px; }
.setup details ul { margin: 8px 0 0; padding-left: 18px; color: #475569; font-size: 14.5px; }
.app-steps { max-width: 760px; margin: 0 auto; }
.app-links { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; padding: 0; margin: 0; }
.app-links a { display: inline-block; padding: 9px 16px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; color: var(--ink); background: #fff; }
.app-links a:hover { border-color: var(--blue); color: var(--blue); }
.app-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
.app-card { display: block; border: 1px solid var(--line); border-radius: 14px; padding: 22px; text-decoration: none; background: #fff; transition: border-color .15s, box-shadow .15s; }
.app-card:hover { border-color: var(--blue); box-shadow: 0 12px 30px rgba(36, 80, 216, .12); }
.app-card h2 { font-size: 20px; margin: 0 0 8px; color: var(--ink); }
.app-card p { margin: 0; color: #475569; font-size: 15px; }
.soft b a { color: inherit; text-decoration: none; }
.soft b a:hover { color: var(--blue); text-decoration: underline; }
@media (max-width: 860px) { .app-two { grid-template-columns: 1fr; gap: 28px; } }

/* ── 指南页（/guides/，2026-11-07）：先给「简答」，再给对比表、步骤、FAQ、出处 ─────────── */
.guide-wrap { max-width: 860px; }
.updated { margin: 14px 0 0; font-size: 14px; color: var(--muted); }
.answer { border-left: 4px solid var(--blue); background: #f5f8ff; border-radius: 0 12px 12px 0; padding: 18px 22px; margin: 0 0 36px; }
.answer b { display: block; font-size: 13px; letter-spacing: .4px; text-transform: uppercase; color: var(--blue); margin-bottom: 6px; }
.answer p { margin: 0; font-size: 17.5px; color: var(--ink); line-height: 1.6; }
.guide h2 { font-size: 26px; margin: 40px 0 16px; }
.guide p { color: #334155; font-size: 17px; line-height: 1.65; }
.guide-table th, .guide-table td { font-size: 15px; }
.guide-foot { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.guide-foot h2 { font-size: 20px; margin: 0 0 12px; }
.guide-foot ul { margin: 0; padding-left: 18px; }
.guide-foot li { margin: 0 0 8px; }
.sources a { color: var(--muted); }
.setups-none { font-size: 17px; color: #334155; text-align: center; }
.app-note { max-width: 860px; margin: 0 auto 22px; }
@media (max-width: 860px) { .guide-foot { grid-template-columns: 1fr; } }