/* 官网与产品共用品牌字体和雾蓝强调色，深浅主题保留各自的表面层级。
   圆角规则：按钮 8px，展示容器 16px。层级：导航 10，原生对话框顶层。
   原始 A 标识保持原图；整页统一主题，手动切换后记住用户选择。 */
:root {
  color-scheme: dark;
  --bg: #101012;
  --surface: #18181b;
  --surface-raised: #202024;
  --text: #f2f2f4;
  --muted: #a3a3ad;
  --line: #323238;
  --accent: #c2def1;
  --button-bg: var(--accent);
  --button-text: #172634;
  --header-bg: rgb(16 16 18 / 92%);
  --soft: #141416;
  --hero-blend: lighten;
}
[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f5f7;
  --surface: #ebebef;
  --surface-raised: #e4e4e9;
  --text: #202025;
  --muted: #62626d;
  --line: #d4d4db;
  --accent: #345b77;
  --button-bg: var(--accent);
  --button-text: #fff;
  --header-bg: rgb(245 245 247 / 94%);
  --soft: #eeeeF2;
  --hero-blend: normal;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 102px; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: "Avenir Next", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; -webkit-font-smoothing: antialiased; line-height: 1.6; }
body.dialog-open { overflow: hidden; }
button, select, input { font: inherit; }
button, a, input, select { -webkit-tap-highlight-color: transparent; }
button, a { touch-action: manipulation; }
button { color: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { border: 0; }
h1, h2, h3, p, figure { margin: 0; }
button:focus-visible, a:focus-visible, select:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
::selection { background: var(--accent); color: var(--bg); }
.wrap { width: min(1200px, calc(100% - 112px)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 20; top: 10px; left: 10px; background: var(--button-bg); color: var(--button-text); padding: 12px 20px; transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.site-header { position: sticky; top: 0; z-index: 10; background: var(--header-bg); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 78px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 23px; font-weight: 600; letter-spacing: -.02em; white-space: nowrap; line-height: 1; }
.brand img { border-radius: 8px; flex: none; }
.brand-suffix { font-weight: 400; }
.navigation { display: flex; align-items: center; gap: 24px; }
.navigation a { font-size: 13px; color: var(--muted); transition: color .2s; padding-block: 12px; white-space: nowrap; }
.navigation a:hover { color: var(--text); }
.header-actions { display: flex; align-items: center; gap: 15px; }
.theme-toggle { background: transparent; width: 36px; height: 40px; font-size: 23px; color: var(--muted); }
.theme-toggle:hover { color: var(--text); }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 30px; min-height: 52px; padding: 13px 23px; border-radius: 8px; border: 1px solid transparent; font-size: 14px; font-weight: 500; line-height: 1.4; white-space: nowrap; transition: transform .2s, background-color .2s, border-color .2s; }
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0); }
.button-primary { background: var(--button-bg); color: var(--button-text); }
.button-primary:hover { opacity: .9; }
.button-outline { border-color: var(--line); background: transparent; color: var(--text); }
.button-outline:hover { background: var(--surface-raised); border-color: var(--muted); }
.button-small { min-height: 40px; padding: 10px 15px; font-size: 12px; gap: 15px; }
.button span { font-size: 19px; line-height: 1; }
.menu-toggle { display: none; background: transparent; width: 40px; height: 42px; padding: 11px 8px; }
.menu-toggle span { display: block; width: 24px; height: 1px; background: var(--text); margin: 6px 0; transition: transform .2s; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
.hero { display: grid; grid-template-columns: 1fr 1fr; min-height: 660px; align-items: center; position: relative; padding-block: 50px 48px; }
.hero-copy { position: relative; z-index: 1; padding-bottom: 12px; }
.eyebrow { font-size: 11px; font-weight: 500; letter-spacing: .17em; color: var(--muted); margin-bottom: 32px; }
.hero h1 { font-size: clamp(64px, 6.2vw, 88px); line-height: 1.23; letter-spacing: -.065em; font-weight: 550; }
.hero h1 span { color: var(--muted); }
.hero-description { color: var(--muted); font-size: 17px; line-height: 1.9; margin-top: 30px; }
.hero-actions { display: flex; align-items: center; gap: 32px; margin-top: 36px; }
.text-link { display: inline-flex; align-items: center; gap: 18px; font-size: 13px; }
.text-link:hover { color: var(--accent); }
.text-link span { font-size: 19px; transition: transform .2s; }
.text-link:hover span { transform: translateX(3px); }
.hero-art { width: 112%; margin-left: -5%; }
.hero-logo { width: 100%; height: auto; mix-blend-mode: var(--hero-blend); mask-image: linear-gradient(to right, transparent, #000 5%, #000 95%, transparent); -webkit-mask-image: linear-gradient(to right, transparent, #000 5%, #000 95%, transparent); }
[data-theme="light"] .hero-logo { mask-image: none; -webkit-mask-image: none; border-radius: 24px; width: 86%; margin: auto; }
.product-principles { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding-block: 29px; }
.product-principles > div { display: flex; justify-content: center; align-items: baseline; gap: 14px; border-right: 1px solid var(--line); }
.product-principles > div:first-child { justify-content: flex-start; }
.product-principles > div:last-child { border: none; justify-content: flex-end; }
.product-principles strong { font-size: 16px; font-weight: 500; }
.product-principles span { color: var(--muted); font-size: 11px; }
.section { padding-block: 118px 0; }
.section-heading { margin-bottom: 48px; }
h2 { font-size: clamp(34px, 3.4vw, 47px); line-height: 1.4; letter-spacing: -.045em; font-weight: 500; }
.muted { color: var(--muted); }
.section-heading p:not(.eyebrow) { margin-top: 23px; color: var(--muted); font-size: 15px; line-height: 1.9; }
.product-stage { border: 1px solid var(--line); background: var(--surface); border-radius: 16px; overflow: hidden; }
.product-toolbar { padding: 17px 26px; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.product-tabs { display: flex; gap: 6px; min-width: 0; overflow-x: auto; scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.product-tabs button { flex: 0 0 auto; white-space: nowrap; background: transparent; padding: 11px 14px; font-size: 13px; border-radius: 8px; color: var(--muted); }
.product-tabs button[aria-selected="true"] { background: var(--button-bg); color: var(--button-text); }
.product-tabs button:focus-visible { outline: 2px solid currentColor; outline-offset: -4px; }
.product-tabs button:hover:not([aria-selected="true"]) { color: var(--text); background: var(--surface-raised); }
.demo-label { color: var(--muted); font-size: 11px; white-space: nowrap; }
.product-panel { padding: 0 26px; }
.screenshot-button { padding: 0; width: 100%; display: block; position: relative; background: var(--surface-raised); overflow: hidden; border-radius: 8px; }
.screenshot-button img { width: 100%; height: auto; aspect-ratio: 16 / 10; }
.zoom-hint { position: absolute; right: 18px; bottom: 18px; color: #f2f2f4; background: rgb(25 25 29 / 92%); padding: 8px 14px; font-size: 12px; border-radius: 8px; opacity: 0; transition: opacity .2s; }
.screenshot-button:hover .zoom-hint, .screenshot-button:focus-visible .zoom-hint { opacity: 1; }
.product-caption { display: flex; align-items: baseline; gap: 28px; padding: 27px; min-height: 91px; }
.product-caption h3 { font-size: 17px; font-weight: 500; white-space: nowrap; }
.product-caption p { color: var(--muted); font-size: 13px; }
.image-note { margin-top: 13px; color: var(--muted); font-size: 11px; text-align: right; }
.mobile-experience { padding-top: 122px; }
.mobile-gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 54px; padding: 15px 32px 0; }
.mobile-product:nth-child(2) { padding-top: 42px; }
.mobile-product:nth-child(3) { padding-top: 84px; }
.phone-preview { padding: 7px; display: block; width: 100%; max-width: 310px; margin-inline: auto; background: #26262b; border: 1px solid #4c4c54; border-radius: 31px; overflow: hidden; transition: transform .25s; }
.phone-preview:hover { transform: translateY(-5px); }
.phone-preview img { width: 100%; height: auto; border-radius: 24px; aspect-ratio: 390 / 844; }
.mobile-product figcaption { margin-top: 27px; }
.mobile-product figcaption > span { color: var(--accent); font-size: 12px; }
.mobile-product h3 { font-size: 20px; font-weight: 500; letter-spacing: -.035em; margin-top: 10px; }
.mobile-product p { color: var(--muted); font-size: 13px; line-height: 1.9; margin-top: 13px; }
.event-scenes { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 64px; }
.event-scenes img { width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 16px; }
.event-scenes figcaption { padding-top: 23px; }
.event-scenes h3 { font-size: 20px; font-weight: 500; letter-spacing: -.03em; }
.event-scenes p { color: var(--muted); font-size: 13px; line-height: 1.9; margin-top: 10px; }
.event-scenes figcaption > span { color: var(--muted); font-size: 10px; display: block; margin-top: 13px; }
.workflow-steps { list-style: none; padding: 0; margin: 57px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.workflow-steps > li { border-top: 1px solid var(--line); padding-top: 21px; }
.step-number { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--accent); font-variant-numeric: tabular-nums; }
.step-number span { font-size: 12px; color: var(--muted); }
.workflow-steps h3 { font-size: 23px; font-weight: 500; letter-spacing: -.04em; margin-top: 29px; }
.workflow-steps p { margin-top: 16px; color: var(--muted); line-height: 1.95; font-size: 14px; min-height: 83px; }
.plain-list { list-style: none; padding: 23px 0 0; margin: 0; font-size: 12px; line-height: 2.3; }
.plain-list li::before { content: "↗"; color: var(--muted); margin-right: 12px; }
.detail-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 20px; }
.detail-feature { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 38px; overflow: hidden; }
.detail-feature h3 { font-size: 27px; font-weight: 500; line-height: 1.5; letter-spacing: -.04em; }
.detail-feature p { margin-top: 19px; color: var(--muted); font-size: 14px; line-height: 1.9; max-width: 370px; }
.detail-feature-main { grid-row: span 2; display: flex; flex-direction: column; padding: 42px; background: linear-gradient(150deg, var(--surface-raised), var(--surface) 70%); }
.detail-feature-main h3 { font-size: 38px; line-height: 1.45; }
.feature-label { font-size: 12px; color: var(--accent); display: block; margin-bottom: 20px; }
.detail-feature-wide { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1.1fr; gap: 50px; align-items: center; background: var(--soft); }
.detail-feature-wide p { max-width: 600px; }
/* 功能卡以真实界面配图承载预览；仅在进入视口时播放一次，可暂停与重播。 */
.detail-feature[data-feature-preview] { min-width: 0; }
.preview-deck { position: relative; isolation: isolate; }
.preview-frame { position: absolute; inset: 0; opacity: 0; visibility: hidden; transform: translateY(9px); transition: opacity 300ms cubic-bezier(.23, 1, .32, 1), transform 400ms cubic-bezier(.23, 1, .32, 1), visibility 400ms; }
.preview-frame.is-current { opacity: 1; visibility: visible; transform: none; z-index: 1; }
.preview-toolbar { display: none; align-items: center; justify-content: space-between; gap: 12px; margin-top: 20px; }
.previews-ready .preview-toolbar { display: flex; }
.preview-choices { display: flex; flex-wrap: wrap; gap: 4px; min-width: 0; }
.preview-choices button { background: transparent; color: var(--muted); border: 1px solid transparent; border-radius: 6px; padding: 8px 10px; min-height: 36px; font-size: 11px; line-height: 1.5; transition: background-color 180ms, color 180ms; }
.preview-choices button[aria-pressed="true"] { background: var(--surface-raised); color: var(--text); border-color: var(--line); }
.preview-choices button:hover { color: var(--text); }
.preview-play { flex: none; display: inline-flex; align-items: center; gap: 6px; font-size: 10px; min-height: 36px; padding: 8px 2px 8px 8px; background: transparent; color: var(--muted); }
.preview-play:hover { color: var(--text); }
.preview-play span { font-size: 15px; width: 14px; text-align: center; }
.preview-play:disabled { cursor: default; opacity: .65; }
.preview-toolbar button:focus-visible { outline-offset: -2px; }
.feature-demo-note { margin-top: 15px; text-align: right; color: var(--muted); font-size: 10px; }
.entry-preview { position: relative; isolation: isolate; display: grid; place-items: center; flex: 1; min-height: 490px; margin: 30px -12px 0; }
.entry-backdrop { position: absolute; z-index: -1; width: 100%; height: 100%; object-fit: cover; object-position: 50% 60%; opacity: .13; mask-image: radial-gradient(ellipse at 50% 50%, #000 20%, transparent 70%); -webkit-mask-image: radial-gradient(ellipse at 50% 50%, #000 20%, transparent 70%); }
.entry-phone { width: clamp(218px, 20vw, 270px); aspect-ratio: 390 / 844; border: 6px solid #33333a; border-radius: 26px; background: #edf3f8; box-shadow: 0 25px 55px rgb(0 0 0 / 30%), 0 0 0 1px #55555e; overflow: hidden; transform: rotate(-3deg); }
.entry-phone img { width: 100%; height: 100%; object-fit: cover; }
.entry-side-note { position: absolute; top: 22%; left: 0; z-index: 2; font-size: 11px; color: var(--muted); line-height: 1.9; letter-spacing: .08em; }
.entry-side-note::after { content: ""; display: block; width: 42px; height: 1px; background: var(--line); margin-top: 14px; }
.entry-caption { position: absolute; bottom: 13%; right: -2px; z-index: 2; padding: 11px 14px; border: 1px solid var(--line); border-radius: 8px; font-size: 11px; color: var(--accent); background: var(--surface); box-shadow: 0 8px 25px rgb(0 0 0 / 15%); }
.entry-caption i, .sheet-footer i { display: inline-block; width: 5px; height: 5px; margin-right: 6px; border-radius: 50%; background: currentColor; vertical-align: middle; }
.registration-preview { position: relative; height: 182px; margin-top: 26px; isolation: isolate; }
.form-thumbnail { position: absolute; inset: 9px 25% 8px 0; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; background: var(--soft); transform: rotate(-4deg); }
.form-thumbnail img { width: 100%; height: 100%; object-fit: cover; object-position: 14% 0; opacity: .8; }
.form-thumbnail > span { position: absolute; left: 0; bottom: 0; padding: 6px 10px; width: 100%; background: var(--surface-raised); color: var(--muted); font-size: 10px; }
.registration-sheet { position: absolute; right: 0; top: 0; width: 69%; height: 100%; color: var(--text); border: 1px solid var(--line); border-radius: 10px; background: var(--soft); box-shadow: 0 12px 30px rgb(0 0 0 / 20%); overflow: hidden; }
.registration-sheet .preview-frame { padding: 15px; }
.sheet-heading { display: flex; gap: 9px; align-items: center; margin-bottom: 14px; }
.sheet-heading strong { font-size: 12px; font-weight: 500; }
.preview-avatar { position: relative; display: grid; place-items: center; width: 26px; height: 26px; border: 1px solid var(--line); border-radius: 7px; color: var(--accent); font-size: 12px; }
.preview-avatar > span { position: absolute; right: -4px; top: -6px; background: var(--surface); border-radius: 50%; width: 12px; font-size: 11px; text-align: center; }
.sheet-tag { font-size: 9px; color: var(--muted); margin-left: auto; }
.sheet-field, .team-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 10px; color: var(--muted); margin-top: 8px; }
.sheet-field { padding: 7px 9px; border: 1px solid var(--line); border-radius: 5px; }
.sheet-field b, .team-row b { font-weight: 400; color: var(--text); }
.team-row { border-bottom: 1px solid var(--line); padding-bottom: 6px; margin-top: 5px; }
.team-row i { font-style: normal; color: var(--accent); }
.sheet-footer { margin-top: 11px; color: var(--accent); font-size: 9px; }
.access-preview { position: relative; height: 184px; margin-top: 26px; isolation: isolate; }
.access-preview > img { position: absolute; width: 86%; height: 160px; left: 0; top: 3px; object-fit: cover; object-position: top left; border: 1px solid var(--line); border-radius: 8px; opacity: .68; transform: rotate(-3deg); }
.access-sheet { position: absolute; right: 0; bottom: 0; width: 77%; height: 167px; border: 1px solid var(--line); border-radius: 10px; background: var(--soft); box-shadow: 0 12px 30px rgb(0 0 0 / 20%); overflow: hidden; }
.access-sheet .preview-frame { padding: 14px 16px; }
.access-title { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.access-title strong { font-size: 12px; font-weight: 500; }
.access-title > span:last-child { font-size: 9px; color: var(--muted); margin-left: auto; }
.access-icon { color: var(--accent); font-size: 19px; line-height: 1; }
.access-row { display: flex; justify-content: space-between; gap: 8px; font-size: 10px; padding: 8px 0; border-top: 1px solid var(--line); color: var(--muted); }
.access-row b { color: var(--accent); font-weight: 400; }
.access-row.is-restricted b { color: var(--muted); }
.reuse-preview { display: grid; grid-template-columns: minmax(0, 1fr) 46px minmax(0, 1fr); align-items: center; padding-block: 8px; min-width: 0; }
.reuse-event { min-width: 0; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; background: var(--surface); }
.reuse-event img { width: 100%; height: 87px; object-fit: cover; }
.reuse-event > div { padding: 13px 15px; }
.reuse-event span { display: block; color: var(--muted); font-size: 9px; }
.reuse-event strong { display: block; font-size: 14px; font-weight: 500; margin-block: 5px; white-space: nowrap; }
.reuse-event small { color: var(--muted); font-size: 9px; }
.reuse-target { opacity: .34; transform: translateX(-8px) scale(.96); transition: transform 600ms cubic-bezier(.23, 1, .32, 1), opacity 450ms; }
[data-step="1"] .reuse-target { opacity: .65; transform: translateX(-3px) scale(.98); }
[data-step="2"] .reuse-target { opacity: 1; transform: none; border-color: var(--accent); }
.reuse-target .draft-label { color: var(--accent); }
.reuse-connector { height: 32px; position: relative; display: grid; place-items: center; color: var(--muted); }
.reuse-connector span { font-size: 24px; font-weight: 300; }
.reuse-connector i { position: absolute; width: 14px; height: 18px; border: 1px solid var(--accent); border-radius: 3px; background: var(--surface-raised); opacity: 0; }
[data-step="1"] .reuse-connector i { animation: transfer-config 1.7s cubic-bezier(.77, 0, .175, 1) both; }
.reuse-status { grid-column: 1 / -1; text-align: center; margin-top: 17px; font-size: 10px; color: var(--accent); }
.reuse-status small { display: block; color: var(--muted); margin-top: 5px; font-size: 9px; }
.preview-is-paused *, .preview-is-paused *::before { animation-play-state: paused !important; }
.preview-instant .preview-frame, .preview-instant .reuse-target { transition: none; }
.preview-instant .reuse-connector i { animation: none; }
@keyframes transfer-config {
  0% { opacity: 0; transform: translateX(-22px) rotate(-10deg); }
  20%, 75% { opacity: 1; }
  100% { opacity: 0; transform: translateX(22px) rotate(0); }
}
.capability-directory { margin-top: 70px; }
.directory-title { font-size: 25px; font-weight: 500; letter-spacing: -.035em; margin-bottom: 36px; }
.capability-groups { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 36px; }
.capability-groups article { border-top: 1px solid var(--line); padding-top: 22px; }
.capability-groups h4 { font-size: 14px; font-weight: 500; color: var(--accent); margin: 0 0 25px; }
.capability-groups dl { margin: 0; }
.capability-groups dt { font-size: 14px; margin-top: 25px; }
.capability-groups dd { margin: 9px 0 0; color: var(--muted); font-size: 12px; line-height: 1.9; }
.scenarios .section-heading { max-width: 850px; }
.venue-figure img { width: 100%; height: auto; aspect-ratio: 1916 / 821; object-fit: cover; border-radius: 16px; }
.venue-figure figcaption { margin-top: 12px; color: var(--muted); text-align: right; font-size: 11px; }
.scenario-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 42px; }
.scenario-list h3 { font-size: 17px; font-weight: 500; }
.scenario-list p { color: var(--muted); font-size: 12px; line-height: 1.9; margin-top: 14px; max-width: 210px; }
.questions { display: grid; grid-template-columns: .8fr 1.5fr; gap: 70px; padding-top: 140px; }
.question-intro p { color: var(--muted); font-size: 14px; margin-top: 22px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 25px 0; display: flex; align-items: center; justify-content: space-between; gap: 24px; cursor: pointer; list-style: none; font-size: 15px; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--muted); font-size: 23px; font-weight: 300; flex: none; line-height: 1; transition: transform .2s; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { color: var(--muted); font-size: 13px; line-height: 2; padding: 0 28px 27px 0; }
.closing { margin-top: 130px; padding: 70px 0 80px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr .8fr; gap: 30px; align-items: center; overflow: hidden; }
.closing h2 { font-size: clamp(42px, 4.2vw, 59px); }
.closing h2 span { color: var(--muted); }
.closing p { color: var(--muted); font-size: 14px; margin: 24px 0 30px; }
.closing-word { font-size: clamp(100px, 13vw, 176px); font-weight: 500; letter-spacing: -.075em; color: var(--surface-raised); transform: rotate(-90deg); text-align: center; user-select: none; }
.site-footer { border-top: 1px solid var(--line); padding: 31px 0 25px; }
.footer-top { display: flex; gap: 24px; align-items: center; }
.footer-top .brand { font-size: 21px; }
.footer-top p { color: var(--muted); font-size: 13px; }
.footer-top > .text-link { margin-left: auto; }
.footer-bottom { display: flex; justify-content: space-between; margin-top: 30px; color: var(--muted); font-size: 10px; }
dialog { color: var(--text); background: var(--bg); border: 1px solid var(--line); padding: 0; border-radius: 16px; max-height: calc(100dvh - 40px); }
dialog::backdrop { background: rgb(0 0 0 / 78%); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.dialog-bar { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 16px 23px; border-bottom: 1px solid var(--line); }
.dialog-bar h2 { font-size: 14px; letter-spacing: 0; }
.close-button { width: 36px; height: 36px; font-size: 28px; font-weight: 300; background: transparent; border-radius: 8px; line-height: 1; }
.close-button:hover { background: var(--surface-raised); }
.image-dialog { width: min(1440px, calc(100vw - 48px)); }
.image-dialog img { width: 100%; height: auto; }
.image-dialog > p { padding: 14px 24px; color: var(--muted); font-size: 12px; }
.image-dialog.is-portrait { width: min(430px, calc(100vw - 32px)); }
.image-dialog.is-portrait img { max-height: calc(100dvh - 160px); width: auto; margin-inline: auto; object-fit: contain; }
.planner-dialog { width: min(660px, calc(100vw - 32px)); }
.dialog-brand { font-size: 18px; font-weight: 600; letter-spacing: -.02em; }
.planner-content { padding: 28px 34px 27px; }
.planner-content h2 { font-size: 28px; }
.planner-intro { font-size: 13px; color: var(--muted); margin: 12px 0 26px; }
.planner-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.planner-fields label { display: grid; gap: 10px; font-size: 13px; }
select { width: 100%; min-width: 0; background: var(--surface); color: var(--text); border: 1px solid var(--line); padding: 11px 12px; border-radius: 8px; }
fieldset { padding: 0; margin: 25px 0; border: 0; }
legend { padding: 0; font-size: 13px; margin-bottom: 12px; }
.planner-checks { display: flex; flex-wrap: wrap; gap: 20px; font-size: 12px; }
.planner-checks label { display: inline-flex; align-items: center; gap: 7px; cursor: pointer; padding: 5px 0; }
input[type="checkbox"] { accent-color: var(--accent); width: 16px; height: 16px; margin: 0; }
.planner-submit { width: 100%; }
.planner-privacy { font-size: 11px; color: var(--muted); margin-top: 21px; }
.planner-result { padding: 24px 0 0; margin-top: 23px; border-top: 1px solid var(--line); }
.planner-result h3 { font-size: 19px; font-weight: 500; }
.planner-result > p { color: var(--accent); font-size: 12px; margin-top: 8px; }
.planner-result ol { font-size: 13px; line-height: 1.9; padding-left: 21px; color: var(--muted); }
.planner-result li { margin-bottom: 10px; }
.result-actions { display: flex; align-items: center; gap: 15px; }
.result-actions .button { min-height: 40px; padding: 10px 15px; font-size: 12px; }
#copy-status { font-size: 12px; color: var(--accent); }
[hidden] { display: none !important; }

@media (prefers-reduced-motion: no-preference) {
  .hero-copy { animation: enter .85s .1s both; }
  .hero-art { animation: enter 1.3s .2s both; }
  .reveal {
    --reveal-distance: 32px;
    --reveal-scale: 1;
    opacity: 1;
    transform: none;
    transition: opacity 720ms cubic-bezier(.22, 1, .36, 1), transform 920ms cubic-bezier(.22, 1, .36, 1);
    transition-delay: var(--reveal-delay, 0ms);
  }
  .reveal-heading { --reveal-distance: 26px; }
  .reveal-card { --reveal-distance: 38px; }
  .reveal-media { --reveal-distance: 44px; --reveal-scale: .975; transform-origin: center top; }
  .reveal.is-pending { opacity: 0; transform: translate3d(0, var(--reveal-distance), 0) scale(var(--reveal-scale)); }
  .reveal.reveal-instant, .reveal:focus-within { opacity: 1; transform: none; transition: none; }
  @keyframes enter { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
}
@media (max-width: 767px) and (prefers-reduced-motion: no-preference) {
  .reveal { --reveal-distance: 24px; transition-duration: 600ms, 760ms; }
  .reveal-media { --reveal-distance: 30px; --reveal-scale: .985; }
}
@media (min-width: 1440px) {
  .hero { min-height: 696px; }
}
@media (max-width: 1100px) {
  .wrap { width: calc(100% - 72px); }
  .navigation { gap: 20px; }
  .header-cta { display: none; }
  .hero { min-height: 590px; }
  .hero h1 { font-size: 68px; }
  .hero-description { font-size: 15px; }
  .hero-actions { gap: 20px; }
  .product-principles > div { flex-direction: column; align-items: center; gap: 5px; }
  .product-principles > div:first-child { align-items: flex-start; }
  .product-principles > div:last-child { align-items: flex-end; }
  .workflow-steps { gap: 30px; }
  .workflow-steps h3 { font-size: 21px; }
  .workflow-steps p { min-height: 110px; }
  .questions { gap: 40px; }
  .mobile-gallery { gap: 32px; padding-inline: 0; }
  .mobile-product h3 { font-size: 18px; }
  .capability-groups { grid-template-columns: 1fr 1fr; gap: 38px; }
}
@media (max-width: 767px) {
  html { scroll-padding-top: 90px; }
  .wrap { width: calc(100% - 40px); }
  .header-inner { height: 68px; gap: 12px; }
  .brand { font-size: 22px; gap: 8px; }
  .brand img { width: 32px; height: 32px; }
  .header-actions { gap: 6px; }
  .menu-toggle { display: block; }
  .navigation { display: none; position: absolute; top: 68px; left: 0; right: 0; padding: 16px 20px 22px; background: var(--bg); border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; gap: 0; }
  .navigation.is-open { display: flex; }
  .navigation a { font-size: 15px; padding: 14px 6px; }
  .hero { display: grid; grid-template-columns: 1fr; padding: 57px 0 26px; min-height: 0; }
  .hero-copy { padding-bottom: 0; }
  .eyebrow { font-size: 10px; margin-bottom: 23px; }
  .hero h1 { font-size: clamp(54px, 12vw, 78px); line-height: 1.23; }
  .hero-description { margin-top: 23px; font-size: 15px; line-height: 1.8; }
  .hero-actions { margin-top: 28px; gap: 23px; }
  .hero-actions .button { padding: 13px 18px; gap: 25px; font-size: 13px; min-height: 49px; }
  .hero-actions .text-link { font-size: 12px; gap: 10px; }
  .hero-art { width: min(100%, 520px); margin: -3px auto -25px; }
  .hero-logo { width: 100%; }
  [data-theme="light"] .hero-art { margin: 32px auto 0; }
  [data-theme="light"] .hero-logo { width: 100%; }
  .product-principles { padding-block: 23px; gap: 15px; }
  .product-principles > div { align-items: flex-start; border: 0; }
  .product-principles > div:last-child { align-items: flex-start; }
  .product-principles strong { font-size: 12px; }
  .product-principles span { font-size: 10px; line-height: 1.7; }
  .section { padding-top: 80px; }
  .section-heading { margin-bottom: 30px; }
  h2 { font-size: clamp(29px, 6.9vw, 40px); line-height: 1.45; }
  .section-heading p:not(.eyebrow) { font-size: 13px; margin-top: 19px; }
  .product-toolbar { padding: 14px 12px; display: block; }
  .product-tabs { gap: 5px; justify-content: flex-start; padding-bottom: 6px; }
  .product-tabs button { padding: 10px 13px; font-size: 12px; flex: 0 0 auto; white-space: nowrap; }
  .demo-label { display: block; margin: 14px 5px 0; font-size: 10px; }
  .product-panel { padding: 0 10px; }
  .zoom-hint { opacity: 1; padding: 5px 9px; right: 8px; bottom: 8px; font-size: 10px; }
  .product-caption { padding: 21px 18px; display: block; min-height: 136px; }
  .product-caption h3 { font-size: 17px; }
  .product-caption p { margin-top: 9px; font-size: 12px; line-height: 1.85; }
  .image-note { font-size: 10px; text-align: left; }
  .mobile-gallery { grid-template-columns: 1fr; gap: 43px; padding: 0; }
  .mobile-product:nth-child(n) { padding-top: 0; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .9fr); align-items: center; gap: 22px; }
  .phone-preview { padding: 4px; border-radius: 23px; }
  .phone-preview img { border-radius: 18px; }
  .mobile-product figcaption { margin-top: 0; }
  .mobile-product figcaption > span { font-size: 11px; }
  .mobile-product h3 { font-size: 19px; line-height: 1.6; }
  .mobile-product p { font-size: 12px; line-height: 1.85; }
  .mobile-experience .image-note { margin-top: 30px; }
  .event-scenes { grid-template-columns: 1fr; gap: 34px; margin-top: 42px; }
  .event-scenes h3 { font-size: 19px; }
  .event-scenes p { font-size: 12px; }
  .capability-directory { margin-top: 46px; }
  .directory-title { font-size: 23px; margin-bottom: 27px; }
  .capability-groups { grid-template-columns: 1fr 1fr; gap: 32px 23px; }
  .capability-groups dt { font-size: 13px; margin-top: 22px; }
  .capability-groups dd { font-size: 11px; line-height: 1.9; }
  .workflow-steps { grid-template-columns: 1fr; gap: 35px; margin-top: 34px; }
  .workflow-steps > li { padding-top: 17px; }
  .workflow-steps h3 { font-size: 23px; margin-top: 20px; }
  .workflow-steps p { min-height: 0; margin-top: 13px; font-size: 13px; }
  .plain-list { padding-top: 18px; font-size: 12px; line-height: 2.1; }
  .detail-grid { grid-template-columns: 1fr; gap: 15px; }
  .detail-feature, .detail-feature-main { padding: 29px; grid-row: auto; }
  .detail-feature h3 { font-size: 27px; }
  .detail-feature p { font-size: 13px; }
  .detail-feature-wide { grid-column: auto; grid-template-columns: 1fr; gap: 26px; }
  .entry-preview { min-height: 420px; margin: 24px 0 0; }
  .entry-phone { width: 181px; border-width: 5px; border-radius: 23px; }
  .entry-side-note { left: -9px; top: 15%; font-size: 9px; }
  .entry-caption { right: -9px; bottom: 9%; font-size: 9px; padding: 9px 10px; }
  .preview-toolbar { gap: 5px; margin-top: 18px; }
  .preview-choices { gap: 2px; }
  .preview-choices button { padding: 8px 7px; font-size: 10px; }
  .preview-play { padding-left: 2px; font-size: 9px; gap: 3px; }
  .registration-sheet { width: 76%; }
  .access-sheet { width: 86%; }
  .reuse-preview { grid-template-columns: minmax(0, 1fr) 28px minmax(0, 1fr); }
  .reuse-event img { height: 68px; }
  .reuse-event > div { padding: 10px; }
  .reuse-event strong { font-size: 12px; white-space: normal; }
  .reuse-event small { font-size: 8px; }
  .feature-demo-note { text-align: left; line-height: 1.8; }
  .venue-figure img { aspect-ratio: 4 / 3; object-position: 50%; }
  .scenario-list { grid-template-columns: 1fr 1fr; gap: 31px 20px; margin-top: 30px; }
  .scenario-list h3 { font-size: 16px; }
  .scenario-list p { font-size: 12px; margin-top: 9px; }
  .questions { grid-template-columns: 1fr; gap: 30px; }
  .question-intro h2 br { display: none; }
  .question-intro p { font-size: 13px; margin-top: 13px; }
  .faq-list summary { font-size: 13px; padding-block: 23px; gap: 16px; }
  .faq-list details p { font-size: 12px; padding-right: 6px; }
  .closing { margin-top: 78px; padding-block: 45px 54px; grid-template-columns: 1fr; }
  .closing h2 { font-size: 39px; }
  .closing p { font-size: 12px; }
  .closing-word { display: none; }
  .site-footer { padding-block: 25px 22px; }
  .footer-top { flex-wrap: wrap; gap: 20px; }
  .footer-top .brand { font-size: 20px; }
  .footer-top p { display: none; }
  .footer-top .text-link { font-size: 11px; gap: 8px; }
  .footer-bottom { font-size: 9px; gap: 10px; margin-top: 22px; }
  .planner-content { padding: 24px 22px; }
  .planner-content h2 { font-size: 25px; }
  .planner-fields { grid-template-columns: 1fr; gap: 17px; }
  .planner-checks { gap: 12px; font-size: 12px; }
  .image-dialog { width: calc(100vw - 20px); }
  .dialog-bar { padding: 12px 16px; }
  .image-dialog > p { padding-inline: 16px; font-size: 11px; }
}
@media (max-width: 359px) {
  .wrap { width: calc(100% - 32px); }
  .brand { font-size: 20px; }
  .hero-actions { gap: 15px; }
  .hero-actions .button { gap: 12px; }
  .hero h1 { font-size: 53px; }
  .product-principles { gap: 10px; }
  .product-principles strong { font-size: 11px; }
  .product-principles span { font-size: 9px; }
  .footer-bottom { flex-direction: column; gap: 4px; }
  .mobile-product:nth-child(n) { gap: 16px; }
  .mobile-product h3 { font-size: 17px; }
  .mobile-product p { font-size: 11px; }
  .detail-feature, .detail-feature-main { padding: 22px; }
  .detail-feature-main .preview-toolbar { flex-wrap: wrap; }
  .registration-sheet .preview-frame { padding: 12px; }
  .access-sheet .preview-frame { padding: 13px 12px; }
  .access-title { gap: 5px; }
  .access-title > span:last-child { font-size: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal.is-pending { opacity: 1; transform: none; }
  .button:hover, .button:active, .phone-preview:hover, .text-link:hover span { transform: none; }
}
@media (hover: none) {
  .button:hover, .phone-preview:hover { transform: none; }
}
@media (prefers-reduced-transparency: reduce) {
  .site-header { background: var(--bg); backdrop-filter: none; -webkit-backdrop-filter: none; }
  dialog::backdrop { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgb(0 0 0 / 90%); }
}
@media (forced-colors: active) {
  .button, .detail-feature, .product-tabs button[aria-selected="true"] { border: 1px solid ButtonText; }
  .hero-logo { mix-blend-mode: normal; mask-image: none; -webkit-mask-image: none; }
  .reveal.is-pending { opacity: 1; transform: none; }
}

/* 官网统一工作台与客户端下载入口，保留原有深浅外观。 */
.portal-workspace, .portal-download { min-height: 44px; }
.portal-download .download-long, .portal-download .download-short { font-size: inherit; }
.download-short { display: none; }
.download-details { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding-block: 28px; border-block: 1px solid var(--line); }
.download-details h3 { font-size: 25px; font-weight: 500; margin-bottom: 12px; }
.download-details p { line-height: 1.9; color: var(--muted); }
.download-status { font-size: 13px; }
.download-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; }
.download-verification { margin-top: 22px; color: var(--muted); font-size: 13px; line-height: 1.9; }
.download-verification summary { cursor: pointer; color: var(--text); }
.download-verification p { max-width: 70ch; margin-top: 12px; }
.download-verification code { overflow-wrap: anywhere; font-size: 12px; }
@media (min-width: 768px) and (max-width: 1280px) { .navigation { gap: 12px; } .navigation a { font-size: 12px; } .header-inner { gap: 14px; } .header-actions { gap: 8px; } }
@media (min-width: 768px) and (max-width: 1100px) { .navigation a:nth-child(n+4) { display: none; } }
@media (max-width: 767px) {
 .header-inner > .brand { font-size: 18px; gap: 7px; }
 .header-inner > .brand img { width: 30px; height: 30px; }
 .header-inner > .brand .brand-suffix { display: none; }
 .header-actions { gap: 6px; }
 .portal-download .download-long, .workspace-arrow { display: none; }
 .portal-download .download-short { display: inline; }
 .portal-workspace, .portal-download { padding: 10px 9px; gap: 0; }
 .header-actions .theme-toggle, .header-actions .menu-toggle { width: 30px; }
 .header-actions .menu-toggle { padding-inline: 3px; }
 .download-details { align-items: flex-start; flex-direction: column; gap: 24px; }
 .download-details h3 { font-size: 21px; }
}