@font-face { font-family: "VibeKey Latin"; src: url("./assets/vibekey-latin.ttf") format("truetype"); font-style: normal; font-weight: 100 900; font-display: swap; }
:root { color-scheme: light; --paper: #fafaf8; --ink: #20241f; --muted: #62685f; --line: #e3e6df; --red: #d9382f; --red-dark: #ad2e26; --green: #34754c; --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", Arial, sans-serif; }
* { box-sizing: border-box; }
html { scroll-behavior: auto; scroll-padding-top: 24px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font); -webkit-font-smoothing: antialiased; }
[hidden] { display: none !important; }
a { color: inherit; text-underline-offset: 4px; }
button { font: inherit; }
a, button, summary { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid #5275c9; outline-offset: 5px; border-radius: 4px; }
.skip-link { position: fixed; z-index: 100; top: -100px; left: 20px; padding: 12px 18px; background: var(--ink); color: #fff; border-radius: 6px; }
.skip-link:focus { top: 14px; }
.site-header { max-width: 1280px; min-height: 84px; display: flex; align-items: center; gap: 21px; margin: auto; padding: 0 40px; border-bottom: 1px solid var(--line); }
.wordmark { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; flex-shrink: 0; }
.wordmark img { display: block; border-radius: 10px; filter: drop-shadow(0 4px 8px #30342b13); }
.wordmark strong { font-family: "VibeKey Latin", var(--font); font-size: 26px; letter-spacing: -.035em; }
.header-label { padding-left: 21px; border-left: 1px solid #d9dcd6; color: #6c706b; font-size: 14px; }
.site-header nav { display: flex; gap: 26px; margin-left: auto; }
.site-header nav a { min-height: 44px; display: inline-flex; align-items: center; color: #555c50; font-size: 14px; text-decoration: none; }
.site-header nav a:hover { color: var(--red-dark); }
.site-main, .site-footer { width: min(1200px, calc(100% - 80px)); margin: auto; }
.kicker { margin: 0 0 18px; color: var(--red-dark); font-family: "VibeKey Latin", var(--font); font-size: 20px; font-weight: 700; letter-spacing: .035em; line-height: 1.6; }
h1, h2, h3 { letter-spacing: -.035em; }
h1 { margin: 0; font-size: clamp(36px, 4.7vw, 61px); font-weight: 720; line-height: 1.22; }
h1 em { font-style: normal; color: var(--red); }
h2 { margin: 0; font-size: clamp(28px, 3.1vw, 40px); line-height: 1.35; font-weight: 660; }
h3 { margin: 0; font-size: 26px; line-height: 1.45; font-weight: 650; }
p { line-height: 1.85; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 50px; padding: 12px 19px; border: 1px solid transparent; border-radius: 9px; font-size: 15px; font-weight: 650; text-decoration: none; cursor: pointer; transition: background .15s; }
.primary { background: var(--red); color: #fff; box-shadow: 0 5px 12px #d9382f13; }
.primary:hover:not(:disabled) { background: var(--red-dark); }
.secondary { background: #fff; border-color: #dce0d6; color: #40483a; }
.secondary:hover { background: #f0f2ec; }
.button:disabled { background: #767d70; color: #fff; cursor: not-allowed; box-shadow: none; }
.text-link { display: inline-flex; align-items: center; min-height: 44px; font-size: 15px; font-weight: 600; color: var(--red-dark); text-decoration: none; }
.home-hero { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.06fr); align-items: center; gap: 58px; padding: 64px 0 62px; }
.home-intro { min-width: 0; }
.home-lead { max-width: 510px; margin: 25px 0 27px; font-size: 17px; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.download-info { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 16px; font-size: 12px; color: #72796a; line-height: 1.65; }
.download-explainer { max-width: 470px; margin: 11px 0 0; color: #6d7464; font-size: 13px; line-height: 1.75; }
.share-panel { margin-top: 22px; padding: 16px 18px; background: #f0f2ec; border: 1px solid #e0e4d8; border-radius: 9px; }
.share-panel p { margin: 0 0 5px; font-size: 14px; color: #666f5d; }
.share-panel strong { color: #434d39; font-weight: 600; }
.share-panel button { background: none; border: none; color: var(--red-dark); font-size: 14px; cursor: pointer; text-decoration: underline; text-underline-offset: 4px; min-height: 42px; padding: 6px 20px 6px 0; }
.product-figure { margin: 0; background: #fff; border: 1px solid #dfe3d7; border-radius: 14px; overflow: hidden; box-shadow: 0 16px 36px #3a42280a; }
.figure-bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; min-height: 44px; padding: 11px 16px; color: #606959; background: #f0f2ec; border-bottom: 1px solid #e0e4d9; font-size: 12px; line-height: 1.5; }
.figure-bar > span:last-child { color: #737c6b; }
.product-figure > img { display: block; width: 100%; height: auto; }
.product-figure figcaption { display: flex; flex-direction: column; gap: 5px; border-top: 1px solid var(--line); padding: 18px 20px; }
.product-figure figcaption b { font-size: 14px; font-weight: 600; }
.product-figure figcaption span { color: #737b6b; font-size: 12px; line-height: 1.65; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 24px; border-top: 1px solid var(--line); padding: 28px 0; }
.site-footer .wordmark strong { font-size: 22px; }.site-footer p { margin: 0; font-size: 12px; color: #7a8370; }.site-footer > div { display: flex; align-items: center; gap: 24px; }.site-footer > div a { font-size: 13px; text-decoration: none; }
.mobile-action { display: none; }.toast { position: fixed; z-index: 120; left: 50%; bottom: 26px; padding: 12px 18px; width: max-content; max-width: calc(100% - 32px); color: #fff; background: #252b21; border-radius: 9px; box-shadow: 0 8px 28px #0002; font-size: 14px; opacity: 0; transform: translate(-50%,8px); pointer-events: none; transition: opacity .15s, transform .15s; text-align: center; }.toast.is-visible { opacity: 1; transform: translate(-50%,0); }
/* Help: symptom first, then actions and an observable result. */
.help-intro { display: flex; justify-content: space-between; align-items: flex-end; gap: 36px; padding: 48px 0 34px; }
.help-intro h1 { font-size: clamp(34px,4vw,49px); }
.help-intro h1 em { display: inline-block; }
.help-intro p:not(.kicker) { color: var(--muted); font-size: 16px; margin: 16px 0 0; }
.guide-entry { flex-shrink: 0; margin-bottom: 4px; border-left: 1px solid #d8dfce; padding-left: 28px; }
.guide-entry p { margin: 0 !important; font-size: 14px !important; }.guide-entry .text-link { font-size: 14px; }
.symptom-shortcuts { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin: 0 0 34px; }
.symptom-shortcuts a { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 62px; padding: 16px 20px; border: 1px solid #dfe4d6; border-radius: 9px; background: #fff; text-decoration: none; font-size: 15px; font-weight: 550; }.symptom-shortcuts a > span { color: #af4337; }.symptom-shortcuts a:hover { background: #faf1ed; border-color: #dcc2b8; }
.help-layout { display: grid; grid-template-columns: 200px minmax(0,1fr); align-items: start; gap: 40px; margin-bottom: 52px; }
.help-sidebar { align-self: stretch; }.help-sidebar-inner { position: sticky; top: 26px; }.help-sidebar-inner > p { margin: 8px 10px 18px; font-size: 13px; font-weight: 650; color: #646e5a; }
.help-nav { display: flex; flex-direction: column; gap: 7px; }.help-nav a { display: flex; gap: 12px; align-items: center; min-height: 51px; padding: 10px 12px; text-decoration: none; border-radius: 8px; color: #5e6953; font-size: 14px; }.help-nav a > span { color: #8a9480; font-size: 12px; }.help-nav a[aria-current="location"] { background: #f9ece8; color: #a83128; }.help-nav a[aria-current="location"] > span { color: #ab6356; }
.help-sidebar-note { margin: 24px 12px; padding-top: 22px; border-top: 1px solid var(--line); font-size: 13px; color: #707c63; line-height: 1.8; }
.help-content { min-width: 0; }.help-category { margin-bottom: 26px; padding: 27px 30px 0; border: 1px solid var(--line); border-radius: 14px; background: #fff; scroll-margin-top: 24px; }
.category-heading { display: flex; align-items: center; gap: 14px; padding-bottom: 23px; }.category-heading > span { color: var(--red); font-size: 29px; font-weight: 500; letter-spacing: -.06em; border-right: 1px solid #e2e7da; padding-right: 15px; }.category-heading h2 { font-size: 22px; letter-spacing: -.025em; }
.help-topic { border-top: 1px solid #e7ebe1; scroll-margin-top: 28px; }.help-topic summary { display: flex; align-items: center; gap: 16px; min-height: 68px; padding: 19px 0; cursor: pointer; list-style: none; font-size: 16px; font-weight: 600; line-height: 1.7; }.help-topic summary::-webkit-details-marker { display: none; }.help-topic summary::after { content: "+"; margin-left: auto; color: #8c9680; font-weight: 400; font-size: 24px; line-height: 1; flex-shrink: 0; }.help-topic[open] summary::after { content: "−"; color: #b94a3a; }.help-topic[open] summary { color: #9f362c; }
.topic-body { padding: 0 0 25px; }.topic-body > p { font-size: 15px; color: var(--muted); margin: 0 0 18px; }.topic-body ol { padding: 0 0 0 23px; margin: 0 0 20px; font-size: 16px; color: #56614c; line-height: 1.9; }.topic-body li + li { margin-top: 10px; }.topic-body li::marker { color: #a6af9c; font-size: 13px; }.topic-body strong { color: #38442e; font-weight: 600; }
.topic-path { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; padding: 13px 15px; background: #f3f5ee; border: 1px solid #e1e7d7; border-radius: 7px; margin: 0 0 20px; font-size: 13px; color: #58664c; line-height: 1.6; }.topic-path span { color: #8c9a7e; }.topic-path b { font-weight: 600; color: #4f6e3f; }
.result-note { padding: 13px 16px; background: #eef5e9; border-left: 2px solid #91b17e; font-size: 14px; color: #566e45; line-height: 1.8; margin: 20px 0 10px; }.result-note b { margin-right: 10px; font-weight: 650; }.topic-body .caution-note { font-size: 14px; color: #806d51; background: #f7f3e9; border-left: 2px solid #d3bb8a; padding: 13px 16px; }.topic-body .text-link { font-size: 14px; }.topic-meta { color: #7a8470 !important; font-size: 13px !important; }.topic-meta a { color: #a33b2e; }
.maintenance-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }.maintenance-grid h3 { font-size: 16px; margin-bottom: 10px; }.maintenance-grid p { font-size: 15px; line-height: 1.9; color: #64715a; margin: 0; }
.help-return { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; padding: 23px 26px; background: #f0f3e9; border: 1px solid #dfe5d4; border-radius: 12px; }.help-return p { margin: 0; color: #657357; font-size: 14px; }.help-return .text-link { font-size: 14px; }
@media (max-width: 1050px) {
  .site-main,.site-footer { width: calc(100% - 48px); }.site-header { padding: 0 24px; }.home-hero { gap: 30px; }.home-hero h1 { font-size: 43px; }.home-lead { font-size: 16px; }.hero-actions { flex-direction: column; align-items: stretch; }.help-layout { grid-template-columns: 175px minmax(0,1fr); gap: 25px; }.header-label { display: none; }
}
@media (max-width: 720px) {
  body { padding-bottom: calc(76px + env(safe-area-inset-bottom)); }.site-header { padding: 0 20px; min-height: 72px; gap: 15px; }.wordmark { gap: 8px; }.wordmark img { width: 32px; height: 32px; }.wordmark strong { font-size: 23px; }.site-header nav { gap: 15px; }.site-header nav a { font-size: 13px; }.site-main,.site-footer { width: calc(100% - 36px); }
  .home-hero { grid-template-columns: minmax(0,1fr); padding: 37px 2px; gap: 30px; }.home-hero h1 { font-size: clamp(35px,9vw,50px); line-height: 1.28; }.home-lead { font-size: 16px; margin: 20px 0 24px; }.home-lead br { display: none; }.hero-actions { flex-direction: row; }.hero-actions .button { flex: 1 1 165px; font-size: 14px; }.download-info { font-size: 12px; }.download-explainer { font-size: 13px; }.product-figure figcaption { padding: 14px 16px; }
  .site-footer { flex-wrap: wrap; padding: 25px 0; gap: 15px; }.site-footer p { flex-basis: 100%; order: 3; }.site-footer > div { margin-left: auto; gap: 17px; }.mobile-action { position: fixed; z-index: 50; left: 0; right: 0; bottom: 0; display: flex; justify-content: space-between; align-items: center; gap: 15px; min-height: 68px; padding: 10px 20px calc(10px + env(safe-area-inset-bottom)); background: rgba(250,250,248,.96); border-top: 1px solid var(--line); backdrop-filter: blur(16px); }.mobile-action > a:not(.button) { min-height: 44px; display: inline-flex; align-items: center; font-size: 13px; text-decoration: none; color: #64725a; }.mobile-action .button { min-height: 44px; font-size: 13px; padding: 10px 14px; }.toast { bottom: calc(86px + env(safe-area-inset-bottom)); }
  .help-intro { display: block; padding: 33px 2px 25px; }.help-intro h1 { font-size: clamp(31px,8.4vw,43px); line-height: 1.4; }.help-intro p:not(.kicker) { font-size: 15px; }.help-intro .kicker { margin-bottom: 12px; }.guide-entry { display: none; }.symptom-shortcuts { grid-template-columns: 1fr; gap: 8px; margin-bottom: 24px; }.symptom-shortcuts a { min-height: 53px; font-size: 14px; padding: 12px 16px; }.help-layout { display: block; margin-bottom: 30px; }.help-sidebar { position: sticky; top: 0; z-index: 25; background: rgba(250,250,248,.98); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 0 -18px 20px; padding: 8px 10px; backdrop-filter: blur(12px); }.help-sidebar-inner { position: static; }.help-sidebar-inner > p,.help-sidebar-note { display: none; }.help-nav { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 3px; }.help-nav a { display: flex; justify-content: center; min-height: 43px; gap: 0; padding: 8px 3px; font-size: 12px; text-align: center; }.help-nav a > span { display: none; }.help-category { padding: 23px 20px 0; margin-bottom: 20px; scroll-margin-top: 72px; }.category-heading { gap: 12px; padding-bottom: 18px; }.category-heading > span { font-size: 27px; padding-right: 12px; }.category-heading h2 { font-size: 20px; }.help-topic { scroll-margin-top: 72px; }.help-topic summary { font-size: 15px; min-height: 68px; padding: 16px 0; gap: 10px; }.topic-body ol { font-size: 15px; padding-left: 21px; }.topic-body > p { font-size: 15px; }.topic-path { font-size: 12px; padding: 11px 13px; }.result-note { font-size: 13px; }.maintenance-grid { grid-template-columns: 1fr; gap: 22px; }.help-return { padding: 20px; }.help-return .text-link { width: 100%; }
}
@media (max-width: 370px) {
  .site-header { padding: 0 14px; gap: 8px; }.site-header nav { gap: 11px; }.site-header nav a { font-size: 12px; }.wordmark img { width: 29px; height: 29px; }.wordmark strong { font-size: 22px; }.site-main,.site-footer { width: calc(100% - 24px); }.help-sidebar { margin-left: -12px; margin-right: -12px; }.help-category { padding: 22px 16px 0; }.help-nav a { font-size: 12px; }.mobile-action { padding-left: 14px; padding-right: 14px; gap: 8px; }
}
@media (prefers-reduced-motion: reduce) { *,*::before,*::after { transition-duration: .01ms !important; } }
@media print { .site-header,.site-footer,.mobile-action,.help-sidebar,.symptom-shortcuts,.hero-actions,.share-panel,.toast { display: none !important; } body { padding: 0; background: #fff; }.site-main { width: 100%; }.help-layout { display: block; }.help-category { break-inside: avoid; } }