@charset "UTF-8";

:root {
    color-scheme: dark;
    --color-primary: #F25C36;
    --color-panel: #232B3A;
    --color-black: #080A0E;
    --color-bg: #0E1117;
    --color-surface: #161B24;
    --color-text: #F1F5F9;
    --color-muted: #94A3B8;
    --color-cyan: #38BDF8;
    --color-border: rgba(148, 163, 184, .16);
    --container: 1200px;
    --radius-small: 7px;
    --radius-card: 10px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--color-bg); }
body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.7;
    text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--color-cyan); }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }
.container { width: min(var(--container), calc(100% - 44px)); margin-inline: auto; }
.skip-link {
    position: absolute; z-index: 100; top: -60px; left: 16px;
    padding: 8px 14px; background: var(--color-primary); color: white; border-radius: 6px;
}
.skip-link:focus { top: 12px; }
:focus-visible { outline: 2px solid var(--color-cyan); outline-offset: 3px; }

.site-header {
    position: relative; z-index: 5; background: rgba(8, 10, 14, .96);
    border-bottom: 1px solid var(--color-border);
}
.header-inner { min-height: 76px; display: flex; align-items: center; gap: 34px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand img { width: 42px; height: 42px; object-fit: contain; border-radius: 8px; }
.brand-copy { display: grid; line-height: 1.25; }
.brand-copy strong { font-size: 19px; letter-spacing: .02em; }
.brand-copy small { color: var(--color-muted); font-size: 11px; margin-top: 4px; }
.main-nav { display: flex; align-items: center; gap: 28px; margin-left: 16px; height: 76px; }
.main-nav a { height: 100%; display: inline-flex; align-items: center; position: relative; color: #B8C2D1; font-size: 14px; }
.main-nav a:hover, .main-nav a.is-active { color: #fff; }
.main-nav a.is-active::after { content: ""; position: absolute; height: 2px; bottom: 0; left: 0; right: 0; background: var(--color-primary); }
.header-download { margin-left: auto; padding: 9px 14px; border: 1px solid rgba(56,189,248,.34); border-radius: 7px; color: var(--color-cyan); font-size: 13px; }
.status-dot, .fact-dot { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: var(--color-cyan); }

.intro-section {
    padding: 43px 0 30px;
    background: radial-gradient(ellipse at 12% 5%, rgba(242,92,54,.09), transparent 34%),
                linear-gradient(180deg, #10151E 0%, var(--color-bg) 100%);
    border-bottom: 1px solid rgba(148,163,184,.08);
}
.intro-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(330px, .8fr); align-items: center; gap: 54px; }
.eyebrow, .section-kicker { color: var(--color-cyan); font-size: 12px; letter-spacing: .08em; font-weight: 650; }
.eyebrow { display: flex; align-items: center; gap: 9px; }
.eyebrow-line { width: 23px; height: 2px; background: var(--color-primary); }
.intro-copy h1 { margin: 12px 0 12px; font-size: clamp(28px, 3.5vw, 42px); line-height: 1.25; letter-spacing: -.035em; }
.intro-lead { max-width: 650px; margin: 0; color: #AAB5C5; font-size: 16px; }
.intro-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 25px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 42px; padding: 9px 17px; border: 1px solid transparent; border-radius: var(--radius-small); font-size: 13px; font-weight: 650; transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.button:hover { transform: translateY(-1px); color: #fff; }
.button-primary { background: var(--color-primary); color: #fff; }
.button-primary:hover { background: #FF704D; }
.button-outline { border-color: rgba(148,163,184,.28); color: #D8E0EA; background: rgba(255,255,255,.02); }
.button-cyan { color: #06131B; background: var(--color-cyan); }
.intro-facts { display: flex; flex-wrap: wrap; gap: 23px; margin-top: 22px; color: var(--color-muted); font-size: 12px; }
.fact-dot { width: 6px; height: 6px; background: var(--color-primary); }
.fact-dot-blue { background: var(--color-cyan); }

.search-panel { padding: 21px; background: rgba(22,27,36,.88); border: 1px solid var(--color-border); border-radius: 10px; }
.search-panel label { display: block; margin-bottom: 10px; font-size: 14px; font-weight: 650; }
.search-control { display: flex; padding: 4px; border: 1px solid rgba(148,163,184,.24); border-radius: 8px; background: #0C1017; }
.search-control:focus-within { border-color: var(--color-cyan); box-shadow: 0 0 0 3px rgba(56,189,248,.08); }
.search-control input { min-width: 0; flex: 1; padding: 8px 10px; border: 0; outline: 0; color: var(--color-text); background: transparent; font-size: 13px; }
.search-control input::placeholder { color: #68778A; }
.search-control button { border: 0; border-radius: 6px; padding: 8px 17px; background: var(--color-primary); color: #fff; cursor: pointer; font-size: 13px; }
.search-hints { display: flex; align-items: center; gap: 13px; flex-wrap: wrap; margin-top: 13px; color: #68778A; font-size: 11px; }
.search-hints a { color: #AAB5C5; }
.search-hints a:hover { color: var(--color-cyan); }

.category-section { padding-top: 28px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 17px; }
.section-heading h2, .platform-copy h2, .about-section h2, .return-strip h2 { margin: 4px 0 0; font-size: 22px; line-height: 1.35; letter-spacing: -.02em; }
.section-heading p { margin: 6px 0 0; color: var(--color-muted); font-size: 13px; }
.section-side-note, .result-count { color: var(--color-muted); font-size: 12px; white-space: nowrap; }
.category-tabs { display: flex; gap: 9px; flex-wrap: wrap; }
.category-tab { min-width: 70px; padding: 7px 17px; text-align: center; background: var(--color-panel); color: #B8C2D1; border: 1px solid transparent; border-radius: 5px; font-size: 13px; }
.category-tab:hover { color: #fff; border-color: rgba(56,189,248,.35); }
.category-tab.is-selected { color: #fff; background: rgba(242,92,54,.16); border-color: rgba(242,92,54,.5); }

.catalog-section { padding-top: 34px; }
.media-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.media-card { overflow: hidden; min-width: 0; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-card); transition: border-color .2s ease, transform .2s ease; }
.media-card:hover { transform: translateY(-3px); border-color: rgba(56,189,248,.38); }
.poster-link { display: block; position: relative; overflow: hidden; background: #202938; aspect-ratio: 2 / 3; }
.poster { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.media-card:hover .poster { transform: scale(1.035); }
.poster-badge { position: absolute; left: 9px; bottom: 9px; padding: 3px 8px; border-radius: 4px; background: rgba(8,10,14,.82); color: #fff; font-size: 11px; }
.media-card__body { padding: 12px 13px 14px; }
.media-card__meta { display: flex; justify-content: space-between; gap: 8px; color: var(--color-muted); font-size: 10px; }
.media-card h3 { overflow: hidden; margin: 7px 0 5px; font-size: 16px; text-overflow: ellipsis; white-space: nowrap; }
.media-card p { min-height: 48px; margin: 0; color: #9AA7B8; font-size: 11px; line-height: 1.65; }
.tag-row { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 10px; }
.tag { padding: 2px 7px; border-radius: 4px; color: #A8B7C9; background: rgba(35,43,58,.85); font-size: 10px; }
.search-summary { margin: -4px 0 15px; color: var(--color-cyan); font-size: 13px; }
.empty-state { padding: 45px 20px; text-align: center; border: 1px dashed rgba(148,163,184,.25); border-radius: 10px; }
.empty-icon { color: var(--color-cyan); font-size: 30px; }
.empty-state h3 { margin: 8px 0 3px; }
.empty-state p { margin: 0 0 18px; color: var(--color-muted); font-size: 13px; }

.platform-strip { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: 28px; margin-top: 38px; padding: 24px 27px; background: linear-gradient(110deg, #171F2B, #151B25); border: 1px solid rgba(56,189,248,.18); border-radius: 10px; }
.platform-copy h2 { font-size: 20px; }
.platform-copy p { max-width: 530px; margin: 7px 0 0; color: var(--color-muted); font-size: 12px; }
.platform-points { display: flex; gap: 19px; }
.platform-point { display: flex; align-items: center; gap: 9px; }
.device-icon { display: grid; width: 34px; height: 34px; place-items: center; border-radius: 7px; background: rgba(242,92,54,.13); color: #FF896C; font-size: 12px; }
.device-icon-blue { background: rgba(56,189,248,.12); color: var(--color-cyan); }
.platform-point div { display: grid; line-height: 1.4; }
.platform-point strong { font-size: 12px; }
.platform-point small { margin-top: 3px; color: var(--color-muted); font-size: 10px; }

.about-section { display: flex; align-items: flex-start; gap: 17px; margin-top: 34px; margin-bottom: 43px; padding: 20px 0; border-top: 1px solid var(--color-border); }
.about-mark { display: grid; flex: 0 0 42px; width: 42px; height: 42px; place-items: center; border: 1px solid rgba(242,92,54,.35); border-radius: 9px; color: var(--color-primary); font-size: 21px; font-weight: 800; }
.about-section h2 { font-size: 17px; }
.about-section p { max-width: 900px; margin: 7px 0 0; color: var(--color-muted); font-size: 12px; }

.site-footer { background: var(--color-black); border-top: 1px solid var(--color-border); }
.footer-main { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; padding-top: 30px; padding-bottom: 27px; }
.footer-brand p { max-width: 360px; margin: 12px 0 0; color: #77869A; font-size: 11px; }
.footer-links { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; color: var(--color-muted); font-size: 12px; }
.footer-links strong { margin-bottom: 5px; color: #E2E8F0; font-size: 13px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 13px; padding-bottom: 15px; border-top: 1px solid rgba(148,163,184,.1); color: #657286; font-size: 10px; }

.breadcrumb { display: flex; align-items: center; gap: 10px; padding-top: 24px; color: #748297; font-size: 12px; }
.breadcrumb a { color: #AAB5C5; }
.download-hero { overflow: hidden; background: radial-gradient(ellipse at 78% 45%, rgba(56,189,248,.11), transparent 28%), linear-gradient(120deg, #121923, #0E1117); border-bottom: 1px solid var(--color-border); }
.download-hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; align-items: center; min-height: 315px; padding: 20px 0 42px; }
.download-hero h1 { max-width: 650px; margin: 10px 0; font-size: clamp(29px, 4vw, 42px); line-height: 1.25; }
.download-hero p { max-width: 610px; margin: 0 0 22px; color: #AAB5C5; font-size: 14px; }
.download-orbit { position: relative; width: 260px; height: 220px; justify-self: center; }
.orbit-ring { position: absolute; border: 1px solid rgba(56,189,248,.24); border-radius: 50%; transform: rotate(-20deg); }
.orbit-ring-one { width: 250px; height: 115px; top: 53px; left: 5px; }
.orbit-ring-two { width: 190px; height: 190px; top: 15px; left: 35px; border-color: rgba(242,92,54,.2); }
.orbit-center { position: absolute; top: 75px; left: 95px; display: grid; width: 70px; height: 70px; place-items: center; border-radius: 20px; background: linear-gradient(145deg, #F25C36, #B83B29); box-shadow: 0 12px 45px rgba(242,92,54,.18); color: white; font-size: 34px; font-weight: 800; }
.orbit-label { position: absolute; padding: 5px 11px; border: 1px solid var(--color-border); border-radius: 5px; background: #171F2B; color: #DCE6F2; font-size: 11px; }
.orbit-label-phone { top: 25px; left: 0; }
.orbit-label-tv { right: 0; bottom: 20px; color: var(--color-cyan); }
.client-section, .install-section { padding-top: 39px; }
.client-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 15px; }
.client-card { padding: 20px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 10px; }
.client-card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.client-icon { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 9px; background: rgba(56,189,248,.1); color: var(--color-cyan); font-size: 12px; }
.client-status { color: #E8B77C; font-size: 10px; }
.client-card h3 { margin: 17px 0 2px; font-size: 19px; }
.client-device { color: var(--color-cyan); font-size: 11px; }
.client-card p { min-height: 66px; margin: 12px 0; color: var(--color-muted); font-size: 12px; }
.client-note { padding-top: 10px; border-top: 1px solid var(--color-border); color: #7F8DA0; font-size: 11px; }
.client-note span { display: inline-grid; width: 15px; height: 15px; margin-right: 5px; place-items: center; border: 1px solid #64748B; border-radius: 50%; }
.install-section { padding-bottom: 38px; }
.install-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 15px; }
.install-list article { display: flex; gap: 13px; padding: 17px; background: rgba(22,27,36,.6); border: 1px solid var(--color-border); border-radius: 9px; }
.install-number { color: var(--color-primary); font-size: 18px; font-weight: 750; }
.install-list h3 { margin: 0 0 5px; font-size: 14px; }
.install-list p { margin: 0; color: var(--color-muted); font-size: 11px; }
.return-strip { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 42px; padding: 22px 25px; border: 1px solid var(--color-border); border-radius: 10px; background: #151B24; }
.return-strip h2 { font-size: 18px; }
.return-strip p { margin: 4px 0 0; color: var(--color-muted); font-size: 12px; }
.error-page { min-height: 55vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.error-code { color: var(--color-primary); font-size: clamp(70px, 12vw, 120px); font-weight: 850; line-height: 1; letter-spacing: -.06em; }
.error-page h1 { margin: 18px 0 5px; font-size: 27px; }
.error-page p { margin: 0 0 20px; color: var(--color-muted); }

@media (max-width: 900px) {
    .intro-grid { gap: 28px; grid-template-columns: 1fr  .85fr; }
    .media-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .platform-strip { grid-template-columns: 1fr auto; }
    .platform-points { grid-column: 1 / -1; grid-row: 2; }
    .platform-strip > .button { grid-column: 2; grid-row: 1; }
    .download-orbit { transform: scale(.85); }
}
@media (max-width: 650px) {
    .container { width: min(100% - 30px, var(--container)); }
    .header-inner { min-height: 66px; gap: 12px; }
    .brand img { width: 36px; height: 36px; }
    .brand-copy strong { font-size: 16px; }
    .brand-copy small { font-size: 9px; }
    .main-nav { height: 66px; gap: 14px; margin-left: auto; }
    .main-nav a { font-size: 12px; }
    .header-download { display: none; }
    .intro-section { padding: 30px 0 24px; }
    .intro-grid { grid-template-columns: 1fr; gap: 23px; }
    .intro-copy h1 { font-size: 29px; }
    .intro-lead { font-size: 14px; }
    .intro-actions { margin-top: 18px; }
    .button { min-height: 40px; padding-inline: 13px; font-size: 12px; }
    .search-panel { padding: 15px; }
    .section-heading { align-items: flex-start; }
    .section-heading h2 { font-size: 19px; }
    .section-side-note { display: none; }
    .category-tabs { gap: 7px; }
    .category-tab { min-width: 0; padding: 6px 13px; }
    .catalog-section { padding-top: 27px; }
    .media-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; }
    .media-card__body { padding: 9px; }
    .media-card h3 { font-size: 14px; }
    .media-card p { min-height: 58px; font-size: 10px; }
    .platform-strip { grid-template-columns: 1fr; gap: 17px; padding: 19px; }
    .platform-strip > .button { grid-column: 1; grid-row: auto; justify-self: start; }
    .platform-points { grid-column: 1; grid-row: auto; flex-wrap: wrap; }
    .about-section { margin-top: 24px; margin-bottom: 28px; }
    .footer-main { grid-template-columns: 1fr 1fr; gap: 24px; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-bottom { flex-direction: column; gap: 4px; }
    .download-hero-grid { grid-template-columns: 1fr; min-height: auto; padding-top: 10px; }
    .download-hero h1 { font-size: 30px; }
    .download-orbit { width: 220px; height: 170px; transform: scale(.78); transform-origin: top center; margin-top: 12px; margin-bottom: -25px; }
    .client-grid, .install-list { grid-template-columns: 1fr; }
    .client-card p { min-height: 0; }
    .return-strip { align-items: flex-start; flex-direction: column; margin-bottom: 28px; }
}
@media (max-width: 370px) {
    .main-nav { gap: 9px; }
    .main-nav a { font-size: 11px; }
    .intro-copy h1 { font-size: 25px; }
    .intro-actions { align-items: stretch; flex-direction: column; }
    .intro-actions .button { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}


/* 页面细节补充：提升窄屏阅读、悬停反馈与高对比度环境下的可用性。 */
@media (hover: hover) and (pointer: fine) {
    .main-nav a:not(.is-active):hover::after {
        content: "";
        position: absolute;
        right: 0;
        bottom: 0;
        left: 0;
        height: 1px;
        background: rgba(56, 189, 248, .7);
    }
    .footer-links a { transition: color .16s ease, transform .16s ease; }
    .footer-links a:hover { transform: translateX(2px); }
    .category-tab, .header-download, .search-control button {
        transition: color .16s ease, background .16s ease, border-color .16s ease;
    }
}
@media (min-width: 1200px) {
    .intro-section { padding-top: 48px; padding-bottom: 35px; }
    .catalog-section { padding-top: 38px; }
    .media-grid { gap: 17px; }
    .media-card__body { padding-inline: 14px; }
}
@media (max-width: 480px) {
    .section-heading { gap: 10px; }
    .result-count { padding-top: 5px; font-size: 10px; }
    .media-card__meta { font-size: 9px; }
    .tag-row { gap: 4px; }
    .tag { padding-inline: 6px; }
    .platform-points { gap: 14px; }
    .platform-point small { font-size: 9px; }
    .client-card { padding: 17px; }
    .install-list article { padding: 14px; }
}
@media (prefers-contrast: more) {
    :root { --color-muted: #B8C4D4; --color-border: rgba(226, 232, 240, .34); }
    .category-tab, .button-outline, .client-card, .media-card { border-width: 1px; }
    .media-card p, .about-section p, .footer-brand p { color: #C1CBD8; }
}
@media print {
    :root { color-scheme: light; }
    body { color: #111827; background: #fff; }
    .site-header, .site-footer, .search-panel, .intro-actions, .platform-strip > .button { display: none !important; }
    .media-card, .client-card, .install-list article { break-inside: avoid; border: 1px solid #CBD5E1; }
    .media-card p, .section-heading p, .about-section p { color: #334155; }
}