:root {
    --page: #2B2C30;
    --deep: #1A1B1E;
    --content: #34363C;
    --secondary: #3E4046;
    --title: #F2F2F4;
    --text: #D8D8DC;
    --muted: #A8A8B0;
    --assist: #888890;
    --gold: #D4B06A;
    --blue: #7A92B0;
    --white: #F2F2F4;
    --border: rgba(242,242,244,0.12);
    --focus-border: rgba(212,176,106,0.48);
    --shadow: 0 12px 28px rgba(0,0,0,0.28);
    --radius: 8px;
    --wrap: 960px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--deep); }
body { margin: 0; min-width: 320px; overflow-x: hidden; background: var(--page); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 15px; line-height: 1.7; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
.wrap { width: min(calc(100% - 32px), var(--wrap)); margin: 0 auto; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 2000; background: var(--gold); color: var(--deep); padding: 8px 12px; border-radius: 6px; }
.skip-link:focus { top: 8px; }
.site-fixed-head { position: fixed; z-index: 1000; inset: 0 0 auto 0; box-shadow: 0 8px 20px rgba(0,0,0,.14); }
.race-edge { height: 20px; background: var(--deep); color: var(--text); font-size: 12px; }
.edge-inner { height: 20px; display: flex; align-items: center; justify-content: space-between; }
.text-trigger { border: 0; background: transparent; min-height: 20px; padding: 0 2px; cursor: pointer; font-size: 12px; text-decoration: underline; text-underline-offset: 2px; }
.day-head { height: 54px; background: var(--content); border-bottom: 1px solid var(--focus-border); }
.head-inner { height: 54px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand-link { min-height: 44px; display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; }
.brand-image-slot { min-width: 0; min-height: 24px; display: inline-flex; align-items: center; }
.brand-logo, .menu-logo, .footer-logo { height: 24px; width: auto; max-width: 160px; object-fit: contain; object-position: center; }
.brand-image-slot:empty { display: none; }
.brand-image-slot:not(:empty) + .brand-fallback { display: none; }
.head-actions { display: flex; align-items: center; gap: 8px; }
.head-app-link, .menu-trigger { height: 44px; min-width: 44px; padding: 0 14px; border-radius: 7px; display: inline-flex; align-items: center; justify-content: center; white-space: nowrap; font-size: 14px; }
.head-app-link { border: 1px solid var(--focus-border); }
.menu-trigger { border: 1px solid var(--border); background: var(--secondary); cursor: pointer; }
.day-grid { height: 46px; background: var(--deep); }
.day-grid-inner { height: 46px; display: flex; align-items: center; justify-content: center; gap: 42px; }
.grid-nav-item { height: 46px; min-width: 50px; display: flex; align-items: center; justify-content: center; gap: 7px; color: var(--muted); font-size: 13px; }
.grid-box { width: 36px; height: 36px; border-radius: 6px; border: 1px solid var(--border); display: inline-flex; align-items: center; justify-content: center; color: var(--title); background: var(--content); }
.grid-nav-item.is-active .grid-box { border: 2px solid var(--gold); color: var(--gold); }
.grid-nav-item:hover, .grid-nav-item:focus-visible { color: var(--white); }
.site-main { padding-top: 148px; min-height: 60vh; }
.section { padding: 28px 0; }
.section + .section { border-top: 1px solid var(--border); }
.section-tight { padding: 20px 0; }
.eyebrow { color: var(--gold); font-size: 12px; font-weight: 700; letter-spacing: .08em; margin: 0 0 8px; }
h1, h2, h3 { margin: 0; color: var(--title); font-weight: 750; }
h1 { font-size: 24px; line-height: 1.3; margin-bottom: 12px; }
h2 { font-size: 20px; line-height: 1.4; margin-bottom: 12px; }
h3 { font-size: 16px; line-height: 1.5; margin-bottom: 8px; }
p { margin: 0 0 12px; }
p:last-child { margin-bottom: 0; }
.lead { color: var(--text); max-width: 760px; }
.sublead { color: var(--muted); }
.slogan { font-size: 18px; color: var(--gold); margin: 8px 0 12px; font-weight: 700; }
.primary-button, .secondary-button { min-height: 42px; padding: 0 18px; display: inline-flex; align-items: center; justify-content: center; border-radius: 7px; font-size: 14px; white-space: nowrap; }
.primary-button { color: var(--deep); background: linear-gradient(135deg,#7A92B0 0%,#D4B06A 100%); font-weight: 700; }
.secondary-button { border: 1px solid var(--gold); background: var(--content); color: var(--white); }
.primary-button:hover, .primary-button:focus-visible, .secondary-button:hover, .secondary-button:focus-visible { transform: translateY(-1px); box-shadow: var(--shadow); outline: 2px solid var(--gold); outline-offset: 2px; }
.button-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.surface { background: var(--content); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.soft-surface { background: var(--secondary); border: 1px solid var(--border); border-radius: var(--radius); }
.index-strip { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.index-strip a { min-height: 38px; display: inline-flex; align-items: center; gap: 8px; padding: 0 12px; background: var(--deep); border: 1px solid var(--border); border-radius: 6px; color: var(--muted); }
.index-strip a span { color: var(--gold); font-weight: 700; }
.hero-copy { max-width: 800px; }
.vertical-cut { display: grid; grid-template-columns: minmax(180px, 280px) 1fr; min-height: 200px; overflow: hidden; background: var(--content); border: 1px solid var(--border); border-radius: var(--radius); }
.vertical-cut-media { min-height: 200px; background: #303238; display: flex; align-items: center; justify-content: center; border-right: 1px solid var(--border); }
.vertical-cut-media img { width: 100%; height: 200px; object-fit: contain; object-position: center; }
.vertical-cut-copy { padding: 24px; align-self: center; }
.list-rows { display: grid; gap: 10px; }
.list-row { display: grid; grid-template-columns: 120px 1fr; gap: 18px; padding: 18px; background: var(--content); border: 1px solid var(--border); border-radius: 7px; }
.list-row-index { color: var(--gold); font-weight: 700; }
.list-row-media { width: 112px; min-height: 82px; display: flex; align-items: center; justify-content: center; background: var(--deep); border-radius: 6px; overflow: hidden; }
.list-row-media img { width: 100%; height: 82px; object-fit: contain; }
.grid-cards { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.grid-card { padding: 20px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.grid-card-media { height: 150px; display: flex; align-items: center; justify-content: center; background: var(--deep); border-radius: 6px; margin-bottom: 16px; }
.grid-card-media img { width: 100%; height: 150px; object-fit: contain; }
.shelf-head-media { height: 170px; display: flex; align-items: center; justify-content: center; background: var(--content); border: 1px solid var(--border); border-radius: 8px; margin-bottom: 16px; }
.shelf-head-media img { width: 100%; height: 170px; object-fit: contain; }
.two-note { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; }
.note-card { padding: 20px; background: var(--secondary); border-left: 3px solid var(--gold); border-radius: 6px; }
.phase-row { display: grid; grid-template-columns: 100px 1fr; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--border); }
.phase-row:last-child { border-bottom: 0; }
.phase-tag { color: var(--gold); font-weight: 700; }
.phase-media, .calendar-media { height: 180px; display: flex; align-items: center; justify-content: center; background: var(--content); border: 1px solid var(--border); border-radius: 8px; margin-bottom: 18px; }
.phase-media img, .calendar-media img { max-width: 100%; height: 180px; object-fit: contain; }
.status-list { display: grid; gap: 10px; }
.status-item { display: grid; grid-template-columns: 110px 1fr; gap: 16px; padding: 14px 16px; border: 1px solid var(--border); border-radius: 7px; background: var(--content); }
.status-label { color: var(--gold); font-weight: 700; }
.app-split { display: grid; grid-template-columns: minmax(180px, 280px) 1fr; gap: 24px; align-items: center; padding: 24px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.app-media { height: 300px; background: var(--deep); display: flex; align-items: center; justify-content: center; border-radius: 7px; overflow: hidden; position: relative; }
.app-media > img:first-child { width: 100%; height: 300px; object-fit: contain; }
.app-icon-float { position: absolute; right: 12px; bottom: 12px; width: 48px !important; height: 48px !important; object-fit: contain; border-radius: 8px; background: var(--content); padding: 4px; }
.method-list { display: grid; gap: 14px; }
.method-item { padding: 18px 20px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.faq-mini { display: grid; gap: 10px; }
.faq-mini details { padding: 14px 16px; background: var(--content); border: 1px solid var(--border); border-radius: 7px; }
.faq-mini summary { cursor: pointer; color: var(--title); font-weight: 700; }
.faq-mini p { color: var(--muted); padding-top: 10px; }
.brand-story { padding: 24px; background: var(--deep); border: 1px solid var(--border); border-radius: 8px; }
.page-head { padding: 30px 0 22px; }
.page-head .lead { color: var(--muted); }
.content-stack { display: grid; gap: 16px; }
.text-block { padding: 20px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.text-block h2 { margin-bottom: 10px; }
.timeline { position: relative; margin-left: 12px; padding-left: 26px; border-left: 1px solid var(--focus-border); display: grid; gap: 18px; }
.timeline-entry { position: relative; padding: 18px 20px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.timeline-entry::before { content: ""; position: absolute; width: 10px; height: 10px; border-radius: 50%; background: var(--gold); left: -32px; top: 24px; }
.timeline-media { height: 180px; margin-bottom: 16px; background: var(--deep); border-radius: 6px; display: flex; align-items: center; justify-content: center; }
.timeline-media img { max-width: 100%; height: 180px; object-fit: contain; }
.page-vertical-cut { display: grid; grid-template-columns: minmax(200px, 280px) 1fr; gap: 0; overflow: hidden; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.page-vertical-cut .cut-image { background: var(--deep); min-height: 400px; display: flex; align-items: center; justify-content: center; border-right: 1px solid var(--border); }
.page-vertical-cut .cut-image img { width: 100%; max-height: 400px; object-fit: contain; }
.page-vertical-cut .cut-copy { padding: 24px; display: grid; gap: 18px; }
.card-matrix { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px; }
.card-matrix article { padding: 20px; min-height: 210px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.card-matrix .matrix-media { height: 150px; display: flex; align-items: center; justify-content: center; background: var(--deep); border-radius: 6px; margin-bottom: 14px; }
.card-matrix .matrix-media img { height: 150px; width: 100%; object-fit: contain; }
.single-column { max-width: 760px; margin: 0 auto; display: grid; gap: 16px; }
.single-hero-media { height: 220px; display: flex; align-items: center; justify-content: center; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.single-hero-media img { height: 220px; width: 100%; object-fit: contain; }
.triad { display: grid; gap: 14px; }
.triad article { display: grid; grid-template-columns: 110px 1fr; gap: 20px; padding: 20px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.triad strong { color: var(--gold); }
.state-bars { display: grid; gap: 14px; }
.state-bar { display: grid; grid-template-columns: 120px 1fr; gap: 18px; padding: 18px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.state-bar .state-name { display: flex; align-items: center; justify-content: center; min-height: 58px; border: 1px solid var(--focus-border); border-radius: 6px; color: var(--gold); font-weight: 700; text-align: center; }
.checklist { display: grid; gap: 12px; }
.check-row { position: relative; padding: 18px 20px 18px 48px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.check-row::before { content: "✓"; position: absolute; left: 18px; top: 18px; color: var(--gold); font-weight: 800; }
.guide-steps { counter-reset: guide; display: grid; gap: 14px; }
.guide-step { counter-increment: guide; padding: 20px 20px 20px 70px; position: relative; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.guide-step::before { content: counter(guide, decimal-leading-zero); position: absolute; left: 20px; top: 20px; color: var(--gold); font-weight: 800; }
.topic-list { display: grid; gap: 12px; }
.topic-row { padding: 18px 20px; background: var(--secondary); border-left: 3px solid var(--blue); border-radius: 6px; }
.center-cards { max-width: 760px; margin: 0 auto; display: grid; gap: 16px; }
.center-card { padding: 24px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; text-align: center; }
.center-card p { text-align: left; }
.center-card-media { height: 200px; background: var(--deep); border-radius: 7px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.center-card-media img { width: 100%; height: 200px; object-fit: contain; }
.install-steps { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px; }
.install-step { padding: 20px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.clauses { display: grid; gap: 14px; }
.clause { padding: 20px; border-left: 3px solid var(--gold); background: var(--content); border-radius: 6px; }
.help-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px; }
.help-item { padding: 20px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { padding: 20px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.faq-item h2 { font-size: 17px; }
.contact-paths { display: grid; gap: 12px; }
.contact-path { padding: 18px 20px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.about-banner { height: 200px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.about-banner img { width: 100%; height: 200px; object-fit: contain; object-position: center; }
.about-sections { display: grid; gap: 14px; }
.about-sections section { padding: 20px; background: var(--content); border: 1px solid var(--border); border-radius: 8px; }
.brand-cover-slot { height: 180px; display: flex; align-items: center; justify-content: center; background: var(--deep); border-radius: 7px; margin-top: 16px; }
.brand-cover-slot img { width: 100%; height: 180px; object-fit: contain; }
.site-footer { background: var(--deep); color: var(--text); border-top: 1px solid var(--focus-border); margin-top: 30px; }
.footer-inner { padding: 30px 0 80px; }
.footer-brand { display: flex; align-items: center; gap: 12px; padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.footer-logo-slot { min-height: 24px; min-width: 24px; display: inline-flex; align-items: center; }
.footer-brand div { display: flex; flex-direction: column; line-height: 1.3; }
.footer-brand strong { color: var(--white); font-size: 16px; }
.footer-brand span { font-size: 12px; color: var(--muted); }
.footer-groups { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 20px; padding: 22px 0; }
.footer-groups h2 { font-size: 13px; color: var(--gold); margin-bottom: 8px; }
.footer-groups a { display: block; min-height: 34px; padding: 5px 0; color: var(--muted); font-size: 13px; }
.footer-groups a:hover, .footer-groups a:focus-visible { color: var(--white); text-decoration: underline; }
.footer-note, .copyright { font-size: 13px; color: var(--muted); }
.copyright { margin-top: 8px; }
.screen-mask { position: fixed; z-index: 1200; inset: 0; background: rgba(0,0,0,.58); opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .18s ease, visibility .18s ease; }
.screen-mask.is-open { opacity: 1; visibility: visible; pointer-events: auto; }
.site-menu-panel { position: fixed; z-index: 1300; left: 18px; bottom: 18px; width: 280px; max-height: 400px; background: var(--content); border: 1px solid var(--focus-border); border-radius: 10px; box-shadow: var(--shadow); transform: translateY(calc(100% + 40px)); opacity: 0; visibility: hidden; pointer-events: none; transition: transform .2s ease, opacity .2s ease, visibility .2s ease; overflow: hidden; }
.site-menu-panel.is-open { transform: translateY(0); opacity: 1; visibility: visible; pointer-events: auto; }
.menu-panel-head { height: 56px; display: flex; align-items: center; justify-content: space-between; padding: 0 12px 0 16px; border-bottom: 1px solid var(--border); background: var(--deep); }
.menu-brand { display: flex; align-items: center; gap: 8px; }
.menu-logo-slot { display: inline-flex; min-height: 24px; }
.close-button { min-width: 44px; min-height: 44px; border: 1px solid var(--border); background: var(--secondary); border-radius: 7px; cursor: pointer; }
.menu-scroll { max-height: 344px; overflow-y: auto; padding: 10px 12px 14px; }
.menu-group + .menu-group { border-top: 1px solid var(--border); margin-top: 10px; padding-top: 10px; }
.menu-group h2 { font-size: 13px; color: var(--gold); margin-bottom: 6px; }
.menu-group a { display: block; padding: 8px; border-radius: 6px; }
.menu-group a:hover, .menu-group a:focus-visible { background: var(--secondary); outline: 1px solid var(--focus-border); }
.menu-group b { display: block; color: var(--white); font-size: 13px; }
.menu-group span { display: block; color: var(--muted); font-size: 12px; line-height: 1.55; margin-top: 2px; }
.search-panel { position: fixed; z-index: 1301; top: 74px; left: 0; right: 0; opacity: 0; visibility: hidden; pointer-events: none; transform: translateY(-12px); transition: opacity .18s ease, transform .18s ease, visibility .18s ease; }
.search-panel.is-open { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0); }
.search-card { width: min(calc(100% - 32px), 720px); margin: 0 auto; padding: 18px; background: var(--content); border: 1px solid var(--focus-border); border-radius: 0 0 10px 10px; box-shadow: var(--shadow); }
.search-head { display: flex; justify-content: space-between; gap: 14px; align-items: center; }
.search-head strong { display: block; color: var(--white); }
.search-head span { display: block; color: var(--muted); font-size: 13px; }
.search-label { display: block; color: var(--muted); font-size: 13px; margin: 14px 0 6px; }
.search-card input { width: 100%; min-height: 44px; border: 1px solid var(--border); background: var(--deep); color: var(--white); border-radius: 7px; padding: 0 12px; outline: none; }
.search-card input:focus { border-color: var(--gold); box-shadow: 0 0 0 2px rgba(212,176,106,.18); }
.search-presets { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.search-presets a { min-height: 40px; display: inline-flex; align-items: center; padding: 0 13px; border: 1px solid var(--border); border-radius: 6px; background: var(--secondary); }
.search-empty { color: var(--muted); font-size: 13px; margin-top: 12px; }
.mobile-bottom-nav { display: none; }
.modal-open { overflow: hidden; }
@media (max-width: 720px) {
    body { padding-bottom: calc(48px + env(safe-area-inset-bottom)); }
    .day-grid { display: none; }
    .site-main { padding-top: 96px; }
    .brand-link { min-width: 0; }
    .brand-fallback { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 110px; }
    .head-actions { gap: 4px; }
    .head-app-link, .menu-trigger { padding: 0 10px; }
    .section { padding: 22px 0; }
    .vertical-cut, .page-vertical-cut, .app-split { grid-template-columns: 1fr; }
    .vertical-cut-media { border-right: 0; border-bottom: 1px solid var(--border); }
    .page-vertical-cut .cut-image { min-height: 220px; border-right: 0; border-bottom: 1px solid var(--border); }
    .page-vertical-cut .cut-image img { max-height: 220px; }
    .grid-cards, .two-note, .card-matrix, .install-steps, .help-grid { grid-template-columns: 1fr; }
    .list-row { grid-template-columns: 1fr; }
    .list-row-media { width: 100%; height: 150px; }
    .list-row-media img { height: 150px; }
    .triad article, .state-bar, .status-item { grid-template-columns: 1fr; gap: 10px; }
    .phase-row { grid-template-columns: 80px 1fr; gap: 12px; }
    .footer-groups { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .footer-inner { padding-bottom: 92px; }
    .site-menu-panel { left: 6%; bottom: calc(58px + env(safe-area-inset-bottom)); width: 88%; max-height: 400px; }
    .search-panel { top: 0; bottom: 0; background: var(--deep); }
    .search-card { width: 100%; height: 100%; border: 0; border-radius: 0; margin: 0; background: var(--deep); padding: 24px 16px; }
    .mobile-bottom-nav { display: grid; grid-template-columns: repeat(4,1fr); position: fixed; z-index: 1100; left: 0; right: 0; bottom: 0; min-height: calc(48px + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom); background: var(--deep); border-top: 1px solid var(--border); }
    .mobile-bottom-nav a { min-height: 48px; display: flex; align-items: center; justify-content: center; color: var(--muted); font-size: 13px; }
    .mobile-bottom-nav a.is-active { background: var(--gold); color: var(--deep); font-weight: 700; }
}
@media (max-width: 420px) {
    .wrap { width: calc(100% - 32px); }
    .head-app-link { padding: 0 8px; }
    .menu-trigger { padding: 0 8px; }
    .brand-fallback { max-width: 90px; }
    .footer-groups { grid-template-columns: 1fr 1fr; gap: 12px; }
}