:root {
  --blue: #093ecd;
  --blue-bright: #2f6bff;
  --navy: #031551;
  --ink: #07142d;
  --paper: #f6f8fc;
  --muted: #71809a;
  --line: #dbe4f1;
  --mono: 'DM Mono', ui-monospace, SFMono-Regular, Consolas, monospace;
  --sans: 'Manrope', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.site-shell { overflow: hidden; }
.site-header { align-items: center; background: rgba(246,248,252,.88); border-bottom: 1px solid rgba(219,228,241,.75); display: flex; height: 80px; justify-content: space-between; padding: 0 clamp(22px, 5vw, 80px); position: relative; z-index: 10; backdrop-filter: blur(18px); }
.brand, .footer-brand { align-items: center; display: inline-flex; gap: 11px; }
.brand-mark { background: var(--blue); border-radius: 11px; box-shadow: 0 7px 22px rgba(9,62,205,.22); display: grid; height: 36px; overflow: hidden; place-items: center; width: 36px; }
.brand-mark img { height: 100%; object-fit: cover; width: 100%; }
.brand-mark.small { border-radius: 8px; height: 25px; width: 25px; }
.brand-wordmark { font-size: 16px; font-weight: 800; letter-spacing: .1em; }
.brand-wordmark span { color: var(--blue); }
.desktop-nav { display: flex; gap: clamp(22px, 3vw, 50px); margin-left: 6vw; }
.desktop-nav a { color: #71809a; font-size: 12px; letter-spacing: .06em; transition: color .2s ease; }
.desktop-nav a:hover { color: var(--blue); }
.header-download { align-items: center; border: 1px solid var(--blue); border-radius: 999px; color: var(--blue); display: inline-flex; font-size: 12px; font-weight: 700; gap: 12px; padding: 11px 17px; transition: background .2s ease, color .2s ease, transform .2s ease; }
.header-download:hover { background: var(--blue); color: #fff; transform: translateY(-2px); }
.menu-toggle { background: none; border: 0; display: none; padding: 8px; }
.menu-toggle span { background: var(--navy); display: block; height: 2px; margin: 5px 0; width: 21px; }
.section-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); margin: 0 auto; max-width: 1440px; padding-left: clamp(24px, 8vw, 132px); padding-right: clamp(24px, 8vw, 132px); }
.section-grid > * { min-width: 0; }
.hero { min-height: 720px; padding-bottom: 90px; padding-top: clamp(70px, 10vw, 138px); }
.hero-copy { align-self: center; max-width: 610px; padding-bottom: 44px; position: relative; z-index: 2; }
.eyebrow { align-items: center; color: var(--blue); display: flex; font-family: var(--mono); font-size: 10px; gap: 10px; letter-spacing: .12em; margin: 0 0 25px; text-transform: uppercase; }
.blue-eyebrow { color: var(--blue); }
.light-eyebrow { color: #83a6ff; }
.status-dot { background: #25c979; border-radius: 50%; box-shadow: 0 0 0 5px rgba(37,201,121,.1); height: 7px; width: 7px; }
h1, h2, h3, p { margin-top: 0; }
.mobile-title { display: none; }
h1 { color: var(--navy); font-size: clamp(44px, 5.4vw, 81px); font-weight: 700; letter-spacing: -.065em; line-height: 1.05; margin-bottom: 30px; }
h1 em { color: var(--blue); font-style: normal; }
.hero-lede { color: var(--muted); font-size: 15px; line-height: 1.9; max-width: 470px; }
.hero-actions { align-items: center; display: flex; gap: 28px; margin-top: 38px; }
.primary-button, .outline-button, .download-panel-button { align-items: center; display: inline-flex; font-size: 13px; font-weight: 700; justify-content: center; transition: box-shadow .2s ease, transform .2s ease, background .2s ease; }
.primary-button { background: var(--blue); box-shadow: 0 15px 34px rgba(9,62,205,.24); color: #fff; gap: 13px; padding: 16px 20px; }
.primary-button:hover, .download-panel-button:hover { box-shadow: 0 20px 42px rgba(9,62,205,.33); transform: translateY(-3px); }
.android-glyph { font-size: 11px; transform: rotate(45deg); }
.button-arrow { font-size: 17px; font-weight: 400; line-height: 0; }
.text-link { color: var(--ink); font-size: 12px; font-weight: 700; }
.text-link span { color: var(--blue); font-size: 16px; margin-left: 5px; }
.release-meta { align-items: center; color: #8996aa; display: flex; font-family: var(--mono); font-size: 10px; gap: 13px; margin-top: 44px; }
.release-meta b { color: var(--ink); font-weight: 500; }
.meta-separator { background: #cdd7e5; height: 12px; width: 1px; }
.hero-visual { min-height: 560px; position: relative; }
.hero-visual::before { background: radial-gradient(circle, rgba(47,107,255,.15) 0, rgba(47,107,255,0) 68%); content: ''; height: 650px; left: -12%; pointer-events: none; position: absolute; top: -8%; width: 650px; }
.phone-frame { background: #fff; border: 7px solid #101e3b; border-radius: 37px; box-shadow: 20px 30px 55px rgba(3,21,81,.22), 0 0 0 1px rgba(255,255,255,.45); height: 565px; left: 50%; overflow: hidden; position: absolute; top: 1%; transform: rotate(5deg) translateX(-39%); width: 290px; z-index: 2; }
.phone-frame::after { background: #091634; border-radius: 0 0 13px 13px; content: ''; height: 19px; left: 50%; position: absolute; top: -1px; transform: translateX(-50%); width: 105px; }
.phone-topbar { color: #71809a; display: flex; font-family: var(--mono); font-size: 7px; justify-content: space-between; padding: 22px 19px 8px; }
.phone-status { align-items: center; display: flex; gap: 3px; }
.phone-status i { background: #98a6ba; display: block; height: 6px; width: 2px; }
.phone-status i:nth-child(2) { height: 9px; }.phone-status i:nth-child(3) { height: 12px; }.phone-status b { border: 1px solid #98a6ba; border-radius: 3px; height: 7px; margin-left: 2px; width: 12px; }
.phone-nav { align-items: center; border-bottom: 1px solid #edf1f7; display: flex; padding: 11px 17px 15px; }
.back-arrow { color: var(--navy); font-size: 34px; font-weight: 300; line-height: 20px; }
.phone-persona { align-items: center; display: flex; gap: 9px; margin-left: 11px; }
.persona-avatar { align-items: center; background: var(--blue); border-radius: 50%; color: #fff; display: grid; font-size: 13px; font-weight: 700; height: 37px; place-items: center; width: 37px; }
.phone-persona strong, .phone-persona small { display: block; }.phone-persona strong { font-size: 12px; }.phone-persona small { color: #9aa7b8; font-size: 7px; margin-top: 4px; }
.phone-more { color: var(--navy); font-size: 18px; letter-spacing: 2px; margin-left: auto; }
.phone-chat { background: #f5f8fc; display: flex; flex-direction: column; height: 402px; padding: 34px 15px 16px; }
.date-chip { align-self: center; background: #edf2f8; border: 1px solid #dbe4ef; border-radius: 10px; color: #7c8a9d; font-size: 8px; padding: 6px 9px; }
.message { border-radius: 17px; font-size: 11px; line-height: 1.55; margin-top: 21px; max-width: 85%; padding: 13px 14px; position: relative; }
.message small { display: block; font-family: var(--mono); font-size: 7px; margin-top: 7px; opacity: .7; text-align: right; }
.outgoing { align-self: flex-end; background: var(--blue); color: #fff; }.message.short { margin-top: 77px; }.message.long { margin-top: 9px; }.message.voice { align-items: center; display: flex; gap: 9px; margin-top: 9px; padding: 12px 14px; }.message.voice small { margin: 0 0 0 auto; }.voice-icon { font-size: 21px; transform: rotate(180deg); }
.incoming { align-self: flex-start; background: #fff; border: 1px solid #e6edf5; color: var(--ink); }
.phone-composer { align-items: center; background: #fff; display: flex; gap: 13px; padding: 15px 13px 19px; }.plus { align-items: center; background: var(--blue); border-radius: 50%; color: #fff; display: grid; font-size: 25px; height: 30px; line-height: 1; place-items: center; width: 30px; }.composer-placeholder { background: #f2f5f9; border-radius: 13px; color: #8794a7; flex: 1; font-size: 10px; padding: 13px 12px; }.mic { color: var(--blue); font-size: 20px; }
.phone-shadow { background: #031551; bottom: 8%; filter: blur(22px); height: 45px; left: 43%; opacity: .25; position: absolute; transform: rotate(-2deg); width: 230px; }
.signal { border: 1px solid rgba(9,62,205,.18); border-radius: 50%; height: 490px; left: 50%; position: absolute; top: 0; transform: translateX(-51%); width: 490px; }.signal::after { border: 1px dashed rgba(9,62,205,.18); border-radius: 50%; content: ''; inset: 32px; position: absolute; }.signal-two { height: 335px; top: 80px; width: 335px; }.signal-two::after { inset: 25px; }
.visual-caption { color: #8190a7; display: flex; font-family: var(--mono); font-size: 8px; justify-content: space-between; letter-spacing: .08em; line-height: 1.5; position: absolute; width: 80px; z-index: 3; }.visual-caption i { color: var(--blue); font-size: 12px; font-style: normal; }.caption-top { left: 2%; top: 11%; }.caption-bottom { bottom: 6%; right: 1%; }.hero-logo-tile { background: var(--blue); border: 4px solid rgba(255,255,255,.75); border-radius: 24px; bottom: 17%; box-shadow: 0 15px 28px rgba(9,62,205,.26); height: 76px; padding: 4px; position: absolute; right: 6%; transform: rotate(-12deg); width: 76px; z-index: 3; }.hero-logo-tile img { border-radius: 18px; height: 100%; width: 100%; }
.trust-strip { align-items: center; background: #fff; border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); display: grid; gap: 24px; grid-template-columns: repeat(3, 1fr) 1.25fr; padding: 28px clamp(24px, 8vw, 132px); }.trust-strip > div:not(.strip-signal) { display: grid; gap: 4px; grid-template-columns: 32px 1fr; }.strip-index { color: var(--blue); font-family: var(--mono); font-size: 10px; grid-row: span 2; }.trust-strip strong { font-size: 12px; }.trust-strip small { color: var(--muted); font-size: 10px; }.strip-signal { align-items: center; display: flex; gap: 5px; justify-content: flex-end; }.strip-signal span { background: var(--blue); height: 22px; opacity: .18; width: 2px; }.strip-signal span:nth-child(2) { height: 36px; opacity: .34; }.strip-signal span:nth-child(3) { height: 48px; opacity: .65; }.strip-signal span:nth-child(4) { height: 31px; opacity: .42; }.strip-signal span:nth-child(5) { height: 17px; opacity: .22; }
.preview-section { align-items: center; gap: 9vw; padding-bottom: 140px; padding-top: 150px; }.section-intro h2, .steps-heading h2, .download-inner h2, .checksum-section h2 { color: var(--navy); font-size: clamp(34px, 4vw, 56px); letter-spacing: -.06em; line-height: 1.06; margin-bottom: 25px; }.section-intro h2 span, .steps-heading h2 span { color: var(--blue); }.section-intro > p:not(.eyebrow) { color: var(--muted); font-size: 14px; line-height: 1.9; max-width: 390px; }.outline-button { border: 1px solid var(--blue); color: var(--blue); gap: 16px; margin-top: 28px; padding: 13px 17px; }.outline-button:hover { background: var(--blue); color: #fff; transform: translateY(-3px); }.preview-card { background: var(--navy); box-shadow: 0 22px 55px rgba(3,21,81,.16); color: #fff; padding: 18px 18px 14px; transform: rotate(2.5deg); }.preview-card-head, .preview-card-foot { align-items: center; display: flex; font-family: var(--mono); font-size: 8px; justify-content: space-between; letter-spacing: .1em; }.live-pill { color: #87a5f5; }.live-pill i { background: #25c979; border-radius: 50%; display: inline-block; height: 5px; margin-right: 5px; width: 5px; }.preview-card img { display: block; height: auto; margin: 20px auto; max-height: 570px; object-fit: contain; width: 76%; }.preview-card-foot { color: #87a5f5; }
.download-section { background: var(--navy); color: #fff; overflow: hidden; padding: 120px clamp(24px, 8vw, 132px); position: relative; }.download-section::before { background-image: linear-gradient(rgba(133,165,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(133,165,255,.08) 1px, transparent 1px); background-size: 44px 44px; content: ''; inset: 0; mask-image: linear-gradient(90deg, #000, transparent 72%); opacity: .5; position: absolute; }.download-inner { align-items: center; display: grid; gap: 10vw; grid-template-columns: 1fr 1fr; margin: 0 auto; max-width: 1176px; position: relative; z-index: 1; }.download-inner h2 { color: #fff; }.download-inner h2 span { color: #7fa5ff; }.download-copy { color: #a9b8db; font-size: 14px; line-height: 1.9; max-width: 440px; }.download-panel { background: rgba(255,255,255,.08); border: 1px solid rgba(149,177,255,.38); padding: 24px; }.download-panel-top { align-items: center; color: #90adf7; display: flex; font-family: var(--mono); font-size: 9px; gap: 10px; letter-spacing: .1em; }.download-icon { align-items: center; background: var(--blue-bright); border-radius: 50%; color: #fff; display: grid; font-size: 14px; height: 26px; place-items: center; width: 26px; }.release-tag { border: 1px solid rgba(149,177,255,.38); color: #90adf7; margin-left: auto; padding: 5px 7px; }.download-version { align-items: end; border-bottom: 1px solid rgba(149,177,255,.24); display: flex; gap: 15px; padding: 30px 0 20px; }.download-version strong { font-size: 42px; letter-spacing: -.07em; }.download-version span { color: #a9b8db; font-size: 11px; padding-bottom: 7px; }.download-panel-button { background: #fff; color: var(--navy); justify-content: space-between; margin-top: 19px; padding: 15px 17px; width: 100%; }.download-details { color: #90adf7; display: flex; font-family: var(--mono); font-size: 9px; gap: 16px; margin-top: 17px; }.download-orbit { border: 1px solid rgba(118,156,255,.24); border-radius: 50%; height: 560px; position: absolute; width: 560px; }.download-orbit::after { border: 1px dashed rgba(118,156,255,.2); border-radius: 50%; content: ''; inset: 38px; position: absolute; }.orbit-left { left: -360px; top: -120px; }.orbit-right { bottom: -410px; right: -220px; }
.steps-section { gap: 9vw; padding-bottom: 140px; padding-top: 150px; }.steps-heading { align-self: start; }.step-list { border-top: 1px solid var(--line); }.step-item { align-items: center; border-bottom: 1px solid var(--line); display: grid; gap: 16px; grid-template-columns: 35px 1fr 20px; padding: 28px 0; }.step-number { color: var(--blue); font-family: var(--mono); font-size: 10px; }.step-item h3 { font-size: 15px; margin-bottom: 7px; }.step-item p { color: var(--muted); font-size: 11px; margin: 0; }.step-arrow { color: var(--blue); font-size: 18px; }.checksum-section { align-items: center; background: #fff; border-top: 1px solid var(--line); display: grid; gap: 7vw; grid-template-columns: .8fr 1.2fr; padding: 74px clamp(24px, 8vw, 132px); }.checksum-section h2 { font-size: clamp(27px, 3.2vw, 43px); margin: 0; }.checksum-section h2 span { color: var(--blue); }.checksum-box { align-items: center; background: var(--paper); border: 1px solid var(--line); display: grid; gap: 15px; grid-template-columns: auto 1fr auto; padding: 15px 16px; }.checksum-box > span { color: var(--blue); font-family: var(--mono); font-size: 9px; }.checksum-box code { color: #6d7c94; font-family: var(--mono); font-size: 9px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }.checksum-box button { background: none; border: 0; color: var(--blue); cursor: pointer; font-size: 10px; font-weight: 700; }.site-footer { align-items: center; background: var(--navy); color: #9bb1e5; display: flex; font-family: var(--mono); font-size: 9px; justify-content: space-between; letter-spacing: .08em; padding: 28px clamp(24px, 8vw, 132px); }.footer-brand { color: #fff; font-family: var(--sans); font-size: 12px; font-weight: 700; letter-spacing: .08em; }.footer-year { color: #6178b2; }.toast { background: var(--navy); bottom: 24px; color: #fff; font-size: 12px; left: 50%; opacity: 0; padding: 12px 17px; pointer-events: none; position: fixed; transform: translate(-50%, 16px); transition: opacity .2s ease, transform .2s ease; z-index: 20; }.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 900px) { .section-grid { gap: 50px; grid-template-columns: 1fr; }.hero { padding-top: 75px; }.hero-copy { padding-bottom: 0; }.hero-visual { min-height: 630px; }.phone-frame { transform: rotate(5deg) translateX(-46%); }.trust-strip { grid-template-columns: repeat(2, 1fr); }.strip-signal { display: none; }.preview-section, .steps-section { gap: 60px; }.preview-card { max-width: 520px; width: 100%; }.download-inner { gap: 60px; grid-template-columns: 1fr; max-width: 620px; }.checksum-section { gap: 30px; grid-template-columns: 1fr; } }
@media (max-width: 640px) { .site-header { height: 68px; max-width: 100vw; width: 100%; }.desktop-nav { display: none; }.header-download { display: inline-flex; font-size: 9px; gap: 5px; padding: 8px 10px; position: absolute; right: 18px; top: 17px; }.menu-toggle { display: none !important; }.site-header.menu-open .desktop-nav { background: var(--paper); border-bottom: 1px solid var(--line); display: grid; gap: 18px; left: 0; padding: 20px 24px; position: absolute; right: 0; top: 68px; }.hero { min-height: auto; padding-bottom: 65px; padding-top: 64px; }.hero-copy { min-width: 0; }.desktop-title { display: none; }.mobile-title { display: block; font-size: clamp(39px, 11.8vw, 56px); letter-spacing: -.07em; }.hero-lede { font-size: 14px; }.hero-actions { align-items: flex-start; flex-direction: column; gap: 20px; }.release-meta { flex-wrap: wrap; line-height: 1.6; margin-top: 34px; }.hero-visual { min-height: 550px; width: 100%; }.phone-frame { height: 520px; top: 2%; transform: rotate(4deg) translateX(-50%) scale(.86); transform-origin: top center; }.phone-chat { height: 358px; }.hero-logo-tile { bottom: 12%; height: 61px; right: 4%; width: 61px; }.caption-top { left: 0; top: 5%; }.caption-bottom { bottom: 2%; right: 0; }.signal { left: 50%; transform: translateX(-50%) scale(.72); }.signal-two { top: 55px; }.trust-strip { gap: 20px; grid-template-columns: 1fr; padding-bottom: 28px; padding-top: 28px; }.preview-section, .steps-section { padding-bottom: 86px; padding-top: 92px; }.section-intro h2, .steps-heading h2, .download-inner h2 { font-size: 42px; }.download-section { padding-bottom: 80px; padding-top: 85px; }.download-version { align-items: flex-start; flex-direction: column; gap: 7px; }.download-version span { padding: 0; }.download-details { flex-wrap: wrap; }.checksum-section { padding-bottom: 55px; padding-top: 55px; }.checksum-box { align-items: start; gap: 9px; grid-template-columns: 1fr auto; }.checksum-box code { grid-column: 1 / -1; grid-row: 2; }.site-footer { align-items: flex-start; flex-direction: column; gap: 13px; line-height: 1.5; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; }.primary-button, .header-download, .outline-button, .download-panel-button { transition: none; } }

/* Logo Blue Premium direction: keep the existing layout, but make the first
   impression match the CLAW OS brand asset and the Figma download concept. */
.site-header { background: rgba(3,21,81,.96); border-bottom-color: rgba(126,165,255,.22); }
.brand-wordmark { color: #fff; }
.brand-wordmark span { color: #7fa5ff; }
.desktop-nav a { color: #b9c9ef; }
.desktop-nav a:hover { color: #fff; }
.header-download { background: var(--blue); border-color: var(--blue-bright); color: #fff; }
.header-download:hover { background: var(--blue-bright); color: #fff; }
.hero { background: var(--navy); color: #fff; max-width: 1440px; }
.hero-copy h1 { color: #fff; }
.hero-lede { color: #b7c7ed; }
.text-link { color: #fff; }
.release-meta { color: #91a8dc; }
.release-meta b { color: #fff; }
.meta-separator { background: rgba(145,168,220,.45); }
.phone-frame { border-color: #132656; }
.hero-visual::before { background: radial-gradient(circle, rgba(47,107,255,.32) 0, rgba(47,107,255,0) 68%); }
.caption-top, .caption-bottom { color: #91a8dc; }
.signal { border-color: rgba(118,156,255,.28); }
.signal::after { border-color: rgba(118,156,255,.24); }
.menu-toggle span { background: #fff; }

@media (max-width: 640px) {
  .site-header { background: rgba(3,21,81,.98); padding-left: 16px; padding-right: 16px; }
  .brand { flex-shrink: 0; }
  .header-download { align-items: center; background: var(--blue); color: #fff; display: inline-flex; font-size: 0; gap: 0; justify-content: center; margin-left: auto; max-width: 80px; min-width: 80px; overflow: hidden; padding: 9px 8px; position: static; white-space: nowrap; }
  .header-download::before { content: '下载'; font-size: 10px; }
  .header-download span { display: none; }
  .hero-copy { width: 100%; }
  .hero-lede { max-width: 100%; }
}

/* Deployment copy: inherit the existing site layout without remote font requests. */
.release-notes { margin: 0 auto 40px; padding: 24px; max-width: 1180px; border: 1px solid #d7e2e3; border-radius: 8px; background: #fff; color: #263735; }
.release-notes h2 { margin: 0 0 14px; font-size: 22px; }
.release-notes p { margin: 10px 0; font-size: 15px; line-height: 1.8; overflow-wrap: anywhere; }
.release-notes-detail { color: #637371; }
a:focus-visible, button:focus-visible { outline: 3px solid #087b69; outline-offset: 4px; }