/* Sluice website. Colours and type follow the macOS app's design language
   (docs/design-language.md): sapphire accent, deep ink, quiet surfaces. */

:root {
  --accent: #2F5BD3;
  --accent-solid: #2F5BD3;
  --accent-wash: rgba(47, 91, 211, 0.07);
  --accent-fill: rgba(47, 91, 211, 0.12);
  --ink: #14171F;
  --ink2: #3E4555;
  --ink3: #6C7486;
  --page: #F8F9FB;
  --surface: #FDFDFE;
  --well: rgba(20, 23, 31, 0.045);
  --stroke: rgba(20, 23, 31, 0.09);
  --ok: #2E8A63;
  --warn: #D9730D;
  --fail: #C62828;
  --shadow: 0 1px 2px rgba(20, 23, 31, 0.04), 0 8px 24px rgba(20, 23, 31, 0.06);
  --radius: 14px;
  --radius-sm: 9px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  --mono: "SF Mono", ui-monospace, Menlo, monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --accent: #6C9BFF; --accent-solid: #3D6FE0;
    --accent-wash: rgba(108, 155, 255, 0.10); --accent-fill: rgba(108, 155, 255, 0.16);
    --ink: #F2F4F8; --ink2: #C9CED9; --ink3: #8E95A3;
    --page: #111318; --surface: #1B1E25;
    --well: rgba(242, 244, 248, 0.06); --stroke: rgba(242, 244, 248, 0.10);
    --ok: #5BC795; --warn: #FFB14A; --fail: #F0453D;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 10px 30px rgba(0, 0, 0, 0.35);
  }
}
:root[data-theme="dark"] {
  --accent: #6C9BFF; --accent-solid: #3D6FE0;
  --accent-wash: rgba(108, 155, 255, 0.10); --accent-fill: rgba(108, 155, 255, 0.16);
  --ink: #F2F4F8; --ink2: #C9CED9; --ink3: #8E95A3;
  --page: #111318; --surface: #1B1E25;
  --well: rgba(242, 244, 248, 0.06); --stroke: rgba(242, 244, 248, 0.10);
  --ok: #5BC795; --warn: #FFB14A; --fail: #F0453D;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 10px 30px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--page); color: var(--ink);
  font: 16px/1.6 var(--font); -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
code, .mono { font-family: var(--mono); font-size: 0.92em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }
.narrow { width: min(500px, 100% - 32px); margin-inline: auto; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--page) 82%, transparent);
  backdrop-filter: saturate(1.6) blur(16px); -webkit-backdrop-filter: saturate(1.6) blur(16px);
  border-bottom: 1px solid var(--stroke);
}
.site-header .wrap { display: flex; align-items: center; gap: 24px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 650; font-size: 17px; }
.brand:hover { text-decoration: none; }
.brand img { width: 28px; height: 28px; }
.nav { display: flex; gap: 22px; margin-left: 8px; }
.nav a { color: var(--ink2); font-size: 15px; font-weight: 500; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); text-decoration: none; }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.header-actions .btn { white-space: nowrap; }
.icon-btn {
  height: 34px; min-width: 34px; padding: 0 10px; border-radius: var(--radius-sm);
  border: 1px solid var(--stroke); background: var(--surface); color: var(--ink2);
  font: 500 13px var(--font); cursor: pointer;
}
.icon-btn:hover { color: var(--ink); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; padding: 0 18px; border-radius: var(--radius-sm);
  font: 600 15px var(--font); border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--accent-solid); color: #fff; box-shadow: 0 1px 2px rgba(47, 91, 211, 0.3); }
.btn-primary:hover { background: color-mix(in srgb, var(--accent-solid) 88%, #000); }
.btn-secondary { background: var(--surface); color: var(--ink); border-color: var(--stroke); }
.btn-secondary:hover { background: var(--well); }
.btn-lg { height: 48px; padding: 0 24px; font-size: 16px; border-radius: 11px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: default; transform: none; }

/* Hero */
.hero { padding: 88px 0 56px; text-align: center; }
.hero img.app-icon { width: 112px; height: 112px; margin: 0 auto 28px; filter: drop-shadow(0 12px 24px rgba(20, 23, 31, 0.18)); }
.eyebrow { display: inline-block; padding: 4px 12px; border-radius: 999px; background: var(--accent-wash); color: var(--accent); font-size: 13px; font-weight: 600; margin-bottom: 18px; }
.hero h1 { font-size: clamp(36px, 6vw, 60px); line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 18px; font-weight: 700; }
.hero p.lead { font-size: clamp(17px, 2.2vw, 20px); color: var(--ink2); max-width: 640px; margin: 0 auto 32px; }
.hero .actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero .meta { margin-top: 16px; color: var(--ink3); font-size: 13px; }

/* App window mock */
.mock {
  margin: 56px auto 0; max-width: 980px; background: var(--surface);
  border: 1px solid var(--stroke); border-radius: 16px; box-shadow: var(--shadow); overflow: hidden; text-align: left;
}
.mock-bar { height: 38px; display: flex; align-items: center; gap: 8px; padding: 0 14px; border-bottom: 1px solid var(--stroke); }
.mock-bar i { width: 12px; height: 12px; border-radius: 50%; background: #FF5F57; }
.mock-bar i:nth-child(2) { background: #FEBC2E; } .mock-bar i:nth-child(3) { background: #28C840; }
.mock-body { display: grid; grid-template-columns: 180px 1fr; min-height: 380px; }
.mock-side { background: var(--page); padding: 16px 10px; border-right: 1px solid var(--stroke); font-size: 13px; }
.mock-side div { padding: 7px 10px; border-radius: 7px; color: var(--ink); margin-bottom: 2px; }
.mock-side div.on { background: var(--surface); box-shadow: 0 1px 2px rgba(20, 23, 31, 0.06); font-weight: 600; color: var(--accent); }
.mock-side small { display: block; color: var(--ink3); padding: 12px 10px 4px; font-size: 11px; }
.mock-main { padding: 20px 22px; display: grid; gap: 14px; align-content: start; }
.mock-card { background: var(--page); border: 1px solid var(--stroke); border-radius: 11px; padding: 14px 16px; }
.mock-card h4 { margin: 0 0 10px; font-size: 13px; color: var(--ink2); font-weight: 600; }
.chain { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; font-size: 13px; }
.chain span { padding: 3px 10px; border-radius: 999px; background: var(--well); }
.chain span.end { background: var(--accent-fill); color: var(--accent); font-weight: 600; }
.chain b { color: var(--ink3); font-weight: 400; }
.mock-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.big { font-size: 26px; font-weight: 600; font-variant-numeric: tabular-nums; }
.big small { font-size: 13px; color: var(--ink3); font-weight: 500; margin-left: 4px; }
.spark { display: flex; align-items: flex-end; gap: 4px; height: 44px; margin-top: 8px; }
.spark i { flex: 1; background: var(--accent); opacity: .35; border-radius: 2px; }
.spark i.now { opacity: 1; }
.usage { display: grid; gap: 8px; font-size: 13px; }
.usage .row { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; }
.bar { grid-column: 1 / -1; height: 4px; border-radius: 4px; background: var(--well); overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--accent); border-radius: 4px; }

/* Sections */
section.block { padding: 72px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 44px; }
.section-head h2 { font-size: clamp(28px, 4vw, 38px); line-height: 1.2; letter-spacing: -0.015em; margin: 0 0 12px; }
.section-head p { color: var(--ink2); margin: 0; font-size: 17px; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature { background: var(--surface); border: 1px solid var(--stroke); border-radius: var(--radius); padding: 24px; box-shadow: 0 1px 2px rgba(20, 23, 31, 0.03); }
.feature .glyph { width: 40px; height: 40px; border-radius: 10px; background: var(--accent-fill); color: var(--accent); display: grid; place-items: center; margin-bottom: 16px; }
.feature .glyph svg { width: 22px; height: 22px; }
.feature h3 { margin: 0 0 8px; font-size: 17px; }
.feature p { margin: 0; color: var(--ink2); font-size: 15px; }

.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; background: var(--surface); border: 1px solid var(--stroke); border-radius: var(--radius); overflow: hidden; }
.flow > div { padding: 24px; border-right: 1px solid var(--stroke); position: relative; }
.flow > div:last-child { border-right: 0; }
.flow > div::before { counter-increment: step; content: counter(step); display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--accent-solid); color: #fff; font-size: 13px; font-weight: 700; margin-bottom: 12px; }
.flow h3 { margin: 0 0 6px; font-size: 16px; }
.flow p { margin: 0; color: var(--ink2); font-size: 14px; }

.protocols { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; max-width: 860px; margin: 0 auto; }
.protocols span { padding: 6px 14px; border-radius: 999px; background: var(--surface); border: 1px solid var(--stroke); font-size: 14px; color: var(--ink2); }

.cta { text-align: center; background: var(--surface); border: 1px solid var(--stroke); border-radius: 20px; padding: 56px 24px; box-shadow: var(--shadow); }
.cta h2 { margin: 0 0 10px; font-size: clamp(26px, 3.6vw, 34px); }
.cta p { margin: 0 0 26px; color: var(--ink2); }

/* Download */
.downloads { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.download { background: var(--surface); border: 1px solid var(--stroke); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; gap: 10px; }
.download.recommended { border-color: color-mix(in srgb, var(--accent) 45%, transparent); box-shadow: 0 0 0 3px var(--accent-wash); }
.download h3 { margin: 0; font-size: 18px; }
.download .tag { align-self: flex-start; font-size: 12px; font-weight: 600; color: var(--accent); background: var(--accent-wash); padding: 2px 10px; border-radius: 999px; }
.download p { margin: 0; color: var(--ink2); font-size: 14px; flex: 1; }
.download .file { font-family: var(--mono); font-size: 12px; color: var(--ink3); }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 32px 1fr; gap: 12px; align-items: start; background: var(--surface); border: 1px solid var(--stroke); border-radius: var(--radius-sm); padding: 14px 16px; }
.steps li::before { content: counter(s); width: 26px; height: 26px; border-radius: 50%; background: var(--accent-fill); color: var(--accent); display: grid; place-items: center; font-weight: 700; font-size: 13px; }
.steps b { display: block; margin-bottom: 2px; }
.steps span { color: var(--ink2); font-size: 14px; }
.spec { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.spec div { background: var(--surface); border: 1px solid var(--stroke); border-radius: var(--radius-sm); padding: 16px; }
.spec small { color: var(--ink3); display: block; font-size: 13px; }
.spec strong { font-size: 16px; }

/* Auth pages */
.auth { padding: 64px 0 96px; }
.auth-card { background: var(--surface); border: 1px solid var(--stroke); border-radius: 18px; box-shadow: var(--shadow); padding: 32px; }
.auth-card h1 { font-size: 26px; margin: 0 0 6px; letter-spacing: -0.01em; }
.auth-card .sub { color: var(--ink2); margin: 0 0 24px; font-size: 15px; }
.auth-icon { width: 52px; height: 52px; margin-bottom: 18px; }
.progress { display: flex; gap: 6px; margin-bottom: 24px; }
.progress i { flex: 1; height: 4px; border-radius: 4px; background: var(--well); transition: background .3s; }
.progress i.on { background: var(--accent); }
.field { display: grid; gap: 6px; margin-bottom: 16px; }
.field label { font-size: 13px; font-weight: 600; color: var(--ink2); }
.field input {
  height: 44px; padding: 0 14px; border-radius: 10px; border: 1px solid var(--stroke);
  background: var(--page); color: var(--ink); font: 15px var(--font); transition: border-color .15s, box-shadow .15s;
}
.field input::placeholder { color: var(--ink3); }
.field input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-wash); }
.field input.mono { font-family: var(--mono); letter-spacing: .04em; }
.field .hint { font-size: 13px; color: var(--ink3); }
.field.invalid input { border-color: var(--fail); }
.field .error { font-size: 13px; color: var(--fail); display: none; }
.field.invalid .error { display: block; }
.code-input { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 8px; max-width: 100%; }
.code-input input { width: 100%; min-width: 0; box-sizing: border-box; text-align: center; font: 600 22px var(--mono); height: 54px; padding: 0; }
@media (max-width: 380px) { .code-input { gap: 6px; } .code-input input { height: 48px; font-size: 20px; } }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--ink2); margin: 4px 0 20px; }
.check input { margin-top: 4px; accent-color: var(--accent); }
.auth-foot { text-align: center; margin-top: 20px; font-size: 14px; color: var(--ink2); }
.link-btn { background: none; border: 0; padding: 0; color: var(--accent); font: inherit; cursor: pointer; }
.link-btn[disabled] { color: var(--ink3); cursor: default; }
.step { display: none; } .step.active { display: block; animation: rise .3s ease; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .step.active { animation: none; } html { scroll-behavior: auto; } }

.keybox {
  display: flex; align-items: center; gap: 10px; justify-content: space-between;
  background: var(--page); border: 1px dashed color-mix(in srgb, var(--accent) 50%, transparent);
  border-radius: 12px; padding: 16px 18px; margin: 8px 0 16px;
}
.keybox code { font-size: 17px; font-weight: 600; letter-spacing: .06em; word-break: break-all; }
.row-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* Alerts: a light wash, a matching border and a leading bar, like the app. */
.alert {
  position: relative; display: flex; gap: 12px; align-items: flex-start;
  padding: 12px 14px 12px 18px; border-radius: 12px; font-size: 14px; margin-bottom: 18px;
  background: color-mix(in srgb, var(--tone) 9%, var(--surface)); border: 1px solid color-mix(in srgb, var(--tone) 32%, transparent);
  color: var(--ink);
}
.alert::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; border-radius: 12px 0 0 12px; background: var(--tone); }
.alert .dot { flex: none; width: 22px; height: 22px; border-radius: 50%; background: var(--tone); color: #fff; display: grid; place-items: center; font-weight: 800; font-size: 13px; }
.alert p { margin: 0; color: var(--ink2); }
.alert strong { display: block; color: var(--ink); }
.alert.info { --tone: var(--accent); }
.alert.warn { --tone: var(--warn); }
.alert.fail { --tone: var(--fail); }
.alert.ok { --tone: var(--ok); }

.demo-banner { text-align: center; font-size: 13px; padding: 8px 16px; background: var(--accent-wash); color: var(--ink2); border-bottom: 1px solid var(--stroke); }
.demo-banner b { color: var(--accent); }

/* Account */
.account-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.panel { background: var(--surface); border: 1px solid var(--stroke); border-radius: var(--radius); padding: 22px 24px; }
.panel h2 { font-size: 16px; margin: 0 0 14px; }
.panel.full { grid-column: 1 / -1; }
.kv { display: grid; grid-template-columns: 120px 1fr; gap: 10px 16px; font-size: 14px; }
.kv dt { color: var(--ink3); } .kv dd { margin: 0; min-width: 0; }
.kv dd.mono { white-space: nowrap; overflow-x: auto; letter-spacing: .02em; }
.devices { list-style: none; margin: 0; padding: 0; }
.devices li { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid var(--stroke); }
.devices li:first-child { border-top: 0; }
.devices .grow { flex: 1; }
.devices small { color: var(--ink3); display: block; }
.badge { font-size: 12px; padding: 2px 10px; border-radius: 999px; background: var(--well); color: var(--ink2); }
.badge.ok { color: var(--ok); background: color-mix(in srgb, var(--ok) 12%, transparent); }

/* Footer */
.site-footer { border-top: 1px solid var(--stroke); padding: 32px 0 48px; color: var(--ink3); font-size: 14px; margin-top: 40px; }
.site-footer .wrap { display: flex; gap: 24px; justify-content: space-between; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 20px; }
.site-footer a { color: var(--ink2); }

@media (max-width: 900px) {
  .features, .downloads, .spec { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .flow > div:nth-child(2) { border-right: 0; }
  .flow > div:nth-child(-n+2) { border-bottom: 1px solid var(--stroke); }
}
@media (max-width: 680px) {
  .nav { display: none; }
  .features, .downloads, .spec, .account-grid, .flow { grid-template-columns: 1fr; }
  .flow > div { border-right: 0; border-bottom: 1px solid var(--stroke); }
  .mock-body { grid-template-columns: 1fr; }
  .mock-side { display: none; }
  .mock-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 56px; }
  .header-actions { gap: 6px; }
  .header-actions .btn { height: 34px; padding: 0 12px; font-size: 14px; }
  .download .tag.spacer { display: none; }
  .auth-card { padding: 24px; }
  .kv { grid-template-columns: 1fr; gap: 2px; }
  .kv dd { margin-bottom: 8px; }
}

/* Legal pages: one block per language, shown by the page language. */
html[lang="zh-CN"] [data-lang="en"], html[lang="en"] [data-lang="zh"] { display: none; }
.legal { padding: 56px 0 80px; }
.legal article { background: var(--surface); border: 1px solid var(--stroke); border-radius: 18px; padding: 40px 44px; max-width: 780px; margin: 0 auto; }
.legal h1 { font-size: 30px; margin: 0 0 6px; letter-spacing: -0.01em; }
.legal .updated { color: var(--ink3); font-size: 14px; margin: 0 0 28px; }
.legal h2 { font-size: 18px; margin: 30px 0 8px; }
.legal p, .legal li { color: var(--ink2); font-size: 15px; }
.legal ul { padding-left: 1.2em; }
.legal li { margin: 4px 0; }
.danger { border-color: color-mix(in srgb, var(--fail) 30%, var(--stroke)); }
.btn-danger { background: var(--fail); color: #fff; }
.btn-danger:hover { background: color-mix(in srgb, var(--fail) 88%, #000); }
@media (max-width: 680px) { .legal article { padding: 26px 22px; } }

/* ---------- pricing, license, admin ---------- */
.plans .price { margin: 6px 0 4px; display: flex; align-items: baseline; gap: 4px; }
.plans .price b { font-size: 40px; letter-spacing: -0.02em; color: var(--ink); }
.plans .price small { color: var(--ink3); font-size: 15px; }
.license-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.license-head b { font-size: 17px; }
.badge.warn { background: color-mix(in srgb, var(--warn) 15%, transparent); color: var(--warn); }
.badge.fail { background: color-mix(in srgb, var(--fail) 13%, transparent); color: var(--fail); }
h3.sub { font-size: 15px; margin: 24px 0 10px; }
.plan-pick { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.plan-pick label { display: block; cursor: pointer; }
.plan-pick input { position: absolute; opacity: 0; }
.plan-pick span { display: flex; flex-direction: column; gap: 2px; padding: 12px 14px; border: 1.5px solid var(--stroke); border-radius: 12px; }
.plan-pick small { color: var(--ink3); }
.plan-pick input:checked + span { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent); }
.plan-pick input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.pay-note { margin-top: 14px; padding: 14px 16px; border-radius: 12px; border: 1px solid var(--stroke); white-space: pre-wrap; font-size: 14px; }
.payment-qr { display: block; width: min(260px, 100%); height: auto; margin: 16px auto 0; border-radius: 14px; border: 1px solid var(--stroke); background: #fff; }
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { text-align: left; font-weight: 600; color: var(--ink3); font-size: 12.5px; padding: 8px 10px; border-bottom: 1px solid var(--stroke); white-space: nowrap; }
.table td { padding: 10px; border-bottom: 1px solid var(--stroke); vertical-align: middle; }
.table td.mono, .table .mono { font-family: var(--mono); font-size: 13px; }
.table tr.click { cursor: pointer; }
.table tr.click:hover td { background: color-mix(in srgb, var(--accent) 6%, transparent); }
.table .btn { padding: 6px 12px; font-size: 13px; }
.table .empty { color: var(--ink3); text-align: center; padding: 24px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(128px, 1fr)); gap: 12px; margin-bottom: 18px; }
.stats div { border: 1px solid var(--stroke); border-radius: 14px; padding: 14px 16px; }
.stats small { display: block; color: var(--ink3); font-size: 12.5px; }
.stats b { font-size: 24px; letter-spacing: -0.01em; }
.tabs { display: flex; gap: 6px; margin-bottom: 12px; }
.tab { border: 1px solid var(--stroke); background: transparent; color: var(--ink2); border-radius: 999px; padding: 7px 16px; font: inherit; font-size: 14px; cursor: pointer; }
.tab[aria-selected="true"] { background: var(--ink); color: var(--page); border-color: var(--ink); }
.toolbar { display: flex; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.toolbar input, .toolbar select, .detail-form input, .detail-form select { font: inherit; font-size: 14px; padding: 8px 12px; border: 1px solid var(--stroke); border-radius: 10px; background: transparent; color: var(--ink); }
.toolbar input { flex: 1; min-width: 200px; }
.detail { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--stroke); }
.detail-form { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; margin: 10px 0 16px; }
.detail-form label { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; color: var(--ink3); }
.captcha { margin: 4px 0 14px; min-height: 0; max-width: 100%; overflow: hidden; }
@media (max-width: 640px) { .plan-pick { grid-template-columns: 1fr; } }
.more { display: block; margin: 14px auto 0; }
.more[hidden] { display: none; }
.stats div.hot { border-color: color-mix(in srgb, var(--warn) 55%, transparent); background: color-mix(in srgb, var(--warn) 7%, transparent); }
.stats div.hot b { color: var(--warn); }
.toolbar select { min-width: 110px; }

/* ---------- help ---------- */
html[lang="en"] [data-lang="zh"], html:not([lang="en"]) [data-lang="en"] { display: none; }
.help-layout { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 40px; align-items: start; }
.help-toc { position: sticky; top: 88px; display: flex; flex-direction: column; gap: 4px; }
.help-toc a { color: var(--ink2); text-decoration: none; padding: 7px 12px; border-radius: var(--radius-sm); font-size: 15px; }
.help-toc a:hover { background: var(--accent-wash); color: var(--accent); }
.help-body section { margin-bottom: 48px; scroll-margin-top: 88px; }
.help-body h2 { font-size: 24px; margin: 0 0 18px; }
.help-body code { font-family: var(--mono); font-size: 0.9em; background: var(--well); padding: 1px 6px; border-radius: 5px; word-break: break-all; }
.help-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.help-grid div { background: var(--surface); border: 1px solid var(--stroke); border-radius: var(--radius); padding: 16px 18px; }
.help-grid h3 { font-size: 15.5px; margin: 0 0 6px; color: var(--ink); }
.help-grid p { margin: 0; font-size: 14px; color: var(--ink2); line-height: 1.6; }
.help-list { margin: 0; padding-left: 20px; display: grid; gap: 10px; color: var(--ink2); line-height: 1.65; }
.help-list b { color: var(--ink); }
.help-body details { background: var(--surface); border: 1px solid var(--stroke); border-radius: var(--radius); margin-bottom: 10px; }
.help-body summary { cursor: pointer; padding: 14px 18px; font-weight: 600; color: var(--ink); list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.help-body summary::-webkit-details-marker { display: none; }
.help-body summary::after { content: "+"; color: var(--ink3); font-weight: 400; font-size: 20px; line-height: 1; }
.help-body details[open] summary::after { content: "−"; }
.help-body details p { margin: 0; padding: 0 18px 16px; color: var(--ink2); line-height: 1.7; font-size: 14.5px; }
@media (max-width: 760px) { .help-layout { grid-template-columns: 1fr; gap: 16px; } .help-toc { position: static; flex-direction: row; flex-wrap: wrap; } }
[hidden] { display: none !important; }

/* ---------- motion ---------- */
.reveal { opacity: 0; transform: translateY(10px); transition: opacity .5s ease var(--delay, 0ms), transform .5s cubic-bezier(.2,.7,.2,1) var(--delay, 0ms); }
.reveal.shown { opacity: 1; transform: none; }
.feature, .download, .help-grid > div, .stats > div, .panel { transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.feature:hover, .download:hover, .help-grid > div:hover { transform: translateY(-2px); box-shadow: 0 2px 4px rgba(20,23,31,.04), 0 14px 32px rgba(20,23,31,.08); }
.btn { transition: transform .12s ease, background-color .2s ease, box-shadow .2s ease, opacity .2s ease; }
.btn:active:not([disabled]) { transform: scale(.97); }
.table tr { transition: background-color .15s ease; }
.alert { animation: rise .3s ease; }
.toasts { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); display: grid; gap: 8px; z-index: 100; pointer-events: none; }
.toast { padding: 11px 18px; border-radius: 999px; background: var(--ink); color: var(--page); font-size: 14px; font-weight: 500; box-shadow: 0 10px 30px rgba(0,0,0,.18); opacity: 0; transform: translateY(12px) scale(.98); transition: opacity .25s ease, transform .3s cubic-bezier(.2,.8,.2,1); }
.toast.in { opacity: 1; transform: none; }
.toast.ok::before { content: "✓"; margin-right: 8px; color: var(--ok); }
.toast.fail::before { content: "!"; margin-right: 8px; color: var(--fail); font-weight: 700; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } .feature:hover, .download:hover, .help-grid > div:hover { transform: none; } .toast { transition: opacity .2s; transform: none; } }

/* ---------- admin console ---------- */
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { border: 1px solid var(--stroke); background: transparent; color: var(--ink2); border-radius: 999px; padding: 6px 13px; font: inherit; font-size: 13.5px; cursor: pointer; transition: background-color .15s ease, color .15s ease, border-color .15s ease; }
.chip:hover { border-color: color-mix(in srgb, var(--accent) 40%, var(--stroke)); color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--accent-fill); border-color: color-mix(in srgb, var(--accent) 45%, transparent); color: var(--accent); font-weight: 600; }
.tabs { align-items: center; }
.tab .count { display: inline-block; min-width: 18px; margin-left: 6px; padding: 0 6px; border-radius: 999px; background: var(--warn); color: #fff; font-size: 11.5px; font-weight: 700; line-height: 18px; text-align: center; }
.tabs-hint { margin-left: auto; color: var(--ink3); font-size: 12.5px; }
.stats .stat { text-align: left; font: inherit; color: inherit; cursor: pointer; border: 1px solid var(--stroke); border-radius: 14px; padding: 14px 16px; background: var(--surface); }
.stats .stat:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--stroke)); transform: translateY(-1px); }
.stats .stat small { display: block; color: var(--ink3); font-size: 12.5px; }
.stats .stat b { font-size: 24px; letter-spacing: -0.01em; }
.stats .stat.hot { border-color: color-mix(in srgb, var(--warn) 55%, transparent); background: color-mix(in srgb, var(--warn) 7%, var(--surface)); }
.stats .stat.hot b { color: var(--warn); }
.table .muted, .muted { color: var(--ink3); }
.table .nowrap { white-space: nowrap; }
.table .actions { text-align: right; white-space: nowrap; }
.link-btn.mono { font-family: var(--mono); font-size: 13px; color: var(--ink); }
.link-btn:hover { text-decoration: underline; }
.drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(520px, 100vw); background: var(--page); border-left: 1px solid var(--stroke); box-shadow: -20px 0 50px rgba(0,0,0,.12); z-index: 60; display: flex; flex-direction: column; transform: translateX(104%); transition: transform .32s cubic-bezier(.2,.8,.2,1); outline: none; }
.drawer.open { transform: none; }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 22px; border-bottom: 1px solid var(--stroke); }
.drawer-head b { font-size: 17px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.drawer-body { padding: 18px 22px 32px; overflow-y: auto; flex: 1; }
.drawer-summary { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 14.5px; margin-bottom: 14px; }
.kv.compact { grid-template-columns: 90px 1fr; font-size: 14px; }
.drawer .detail-form { margin: 6px 0 10px; }
.drawer .row-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.drawer h3.danger-title { color: var(--fail); }
.scrim { position: fixed; inset: 0; background: rgba(10,12,18,.28); z-index: 55; animation: fade .2s ease; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
.modal { border: 1px solid var(--stroke); border-radius: 16px; padding: 0; width: min(420px, calc(100vw - 32px)); background: var(--surface); color: var(--ink); box-shadow: 0 24px 60px rgba(0,0,0,.25); }
.modal::backdrop { background: rgba(10,12,18,.35); }
.modal[open] { animation: pop .22s cubic-bezier(.2,.8,.2,1); }
@keyframes pop { from { opacity: 0; transform: translateY(8px) scale(.98); } to { opacity: 1; transform: none; } }
.modal form { padding: 22px; display: grid; gap: 12px; }
.modal h3 { margin: 0; font-size: 18px; }
.modal p { margin: 0; color: var(--ink2); font-size: 14.5px; line-height: 1.6; }
.modal-field { display: grid; gap: 5px; font-size: 13px; color: var(--ink3); }
.modal-field input, .modal-field select { font: inherit; font-size: 14.5px; padding: 9px 12px; border: 1px solid var(--stroke); border-radius: 10px; background: var(--page); color: var(--ink); }
.modal-field input:focus, .modal-field select:focus { outline: 2px solid color-mix(in srgb, var(--accent) 50%, transparent); outline-offset: 0; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 6px; }
@media (prefers-reduced-motion: reduce) { .drawer { transition: none; } .modal[open] { animation: none; } }

.input-with-action { position: relative; }
.input-with-action input { width: 100%; box-sizing: border-box; padding-right: 64px; }
.reveal-btn { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); border: 0; background: var(--well); color: var(--ink2); font: inherit; font-size: 12.5px; padding: 4px 10px; border-radius: 7px; cursor: pointer; }
.reveal-btn:hover { color: var(--ink); }

/* ---------- dialogs and payment ---------- */
.modal.wide { width: min(620px, calc(100vw - 32px)); }
.modal-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.modal-x { width: 30px; height: 30px; font-size: 13px; }
.modal-body { display: grid; gap: 12px; }
.modal-body > p { margin: 0; color: var(--ink2); line-height: 1.65; }
.modal .kv.confirm { grid-template-columns: 96px 1fr; gap: 10px 14px; font-size: 15px; }
.price-strong { font-size: 22px; font-weight: 700; color: var(--ink); }
.pay { display: grid; grid-template-columns: 220px 1fr; gap: 22px; align-items: center; }
.pay .payment-qr { width: 220px; margin: 0; }
.pay-amount { font-size: 34px; font-weight: 700; letter-spacing: -0.02em; color: var(--ink); }
.pay-plan { color: var(--ink2); margin-top: 2px; }
.pay-id { display: flex; gap: 8px; align-items: center; margin: 12px 0 4px; font-size: 13.5px; color: var(--ink3); }
.pay-steps { margin: 10px 0 0; padding-left: 18px; display: grid; gap: 6px; color: var(--ink2); font-size: 14px; line-height: 1.55; }
.pay-extra { margin: 10px 0 0; font-size: 13px; color: var(--ink3); }
.badge.info { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
@media (max-width: 560px) { .pay { grid-template-columns: 1fr; justify-items: center; text-align: center; } .pay-steps { text-align: left; } }

/* Account view as a centred dialog rather than a side drawer. */
.drawer { top: 50%; left: 50%; right: auto; bottom: auto; width: min(760px, calc(100vw - 32px)); max-height: min(86vh, 900px);
  border: 1px solid var(--stroke); border-radius: 18px; box-shadow: 0 30px 80px rgba(0,0,0,.28);
  transform: translate(-50%, -48%) scale(.97); opacity: 0; pointer-events: none; transition: transform .26s cubic-bezier(.2,.8,.2,1), opacity .2s ease; }
.drawer.open { transform: translate(-50%, -50%); opacity: 1; pointer-events: auto; }
.drawer-head { border-radius: 18px 18px 0 0; }
.drawer-body { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 28px; align-content: start; }
.drawer-body > * { grid-column: 1 / -1; }
.note-form { display: grid; gap: 6px; margin: 4px 0 6px; }
.note-form label { font-size: 12.5px; color: var(--ink3); }
.note-form textarea { font: inherit; font-size: 14px; padding: 9px 12px; border: 1px solid var(--stroke); border-radius: 10px; background: var(--surface); color: var(--ink); resize: vertical; }
.note-form .btn { justify-self: start; }
.changelog { display: grid; gap: 12px; }
.release { background: var(--surface); border: 1px solid var(--stroke); border-radius: var(--radius); padding: 16px 20px; }
.release header { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.release time { color: var(--ink3); font-size: 13px; }
.release ul { margin: 8px 0 0; padding-left: 18px; color: var(--ink2); line-height: 1.7; font-size: 14.5px; }
@media (prefers-reduced-motion: reduce) { .drawer { transition: opacity .15s; } }

/* ---------- yearly / lifetime switch ---------- */
.plan-switch { display: inline-flex; gap: 4px; padding: 4px; margin: 0 auto 26px; border-radius: 999px; background: var(--well); border: 1px solid var(--stroke); position: relative; left: 50%; transform: translateX(-50%); }
.plan-switch.small { left: auto; transform: none; margin: 0 0 12px; }
.plan-switch button { border: 0; background: transparent; color: var(--ink2); font: inherit; font-size: 14.5px; font-weight: 600; padding: 8px 18px; border-radius: 999px; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; transition: background-color .2s ease, color .2s ease, box-shadow .2s ease; }
.plan-switch button[aria-selected="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgba(20,23,31,.08), 0 4px 12px rgba(20,23,31,.06); }
.plan-switch .save { font-size: 11.5px; font-weight: 700; color: var(--ok); background: color-mix(in srgb, var(--ok) 13%, transparent); padding: 2px 7px; border-radius: 999px; }
.plans .download.swap .price b { animation: swap .35s cubic-bezier(.2,.8,.2,1); }
@keyframes swap { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.hint-line { margin: 10px 0 0; font-size: 13.5px; color: var(--accent); }
.devices small + small { display: block; color: var(--ink3); }
@media (prefers-reduced-motion: reduce) { .plans .download.swap .price b { animation: none; } }

.history { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 13.5px; }
.history li { display: grid; grid-template-columns: 118px auto 1fr; gap: 10px; align-items: baseline; }
.history .when { color: var(--ink3); font-variant-numeric: tabular-nums; }
@media (max-width: 560px) { .history li { grid-template-columns: 1fr; gap: 2px; } }