/* 首页和功能页共享主题。颜色只通过语义 tokens 进入组件。 */
:root{
  color-scheme:light;
  --font-display:'Segoe UI Variable Display','Segoe UI','Microsoft YaHei','PingFang SC','Noto Sans SC',sans-serif;
  --font-number:'Segoe UI Variable Text','Segoe UI','Microsoft YaHei','PingFang SC',sans-serif;
  --primary-hover:oklch(from var(--fg) 12% c h);
  --danger-hover:oklch(from var(--danger) 34% c h);
  --backdrop:oklch(from var(--fg) l c h / .4);
  --overlay-ink:oklch(20.768% .03982 265.755);
}
:root[data-theme=dark]{
  color-scheme:dark;
  --bg:oklch(19% .018 265);
  --surface:oklch(23% .018 265);
  --fg:oklch(94% .008 258);
  --muted:oklch(76% .019 258);
  --border:oklch(36% .018 265);
  --accent:oklch(76% .15 18.976);
  --ink-soft:oklch(from var(--fg) 84% c h);
  --success:oklch(80% .085 165);
  --danger:oklch(82% .10 18.976);
  --shadow:0 12px 35px oklch(5% .012 265 / .24);
  --primary-hover:oklch(100% 0 258);
  --danger-hover:oklch(from var(--danger) 90% c h);
  --hover-surface:oklch(from var(--bg) 14% c h);
  --backdrop:oklch(8% .012 265 / .72);
}
body{font-variant-numeric:lining-nums tabular-nums;font-feature-settings:'lnum' 1,'tnum' 1}
.wordmark{font-family:var(--font-display);font-style:normal;font-weight:600;font-size:28px;letter-spacing:-.025em;line-height:1.2}
.footer-brand,.mini-avatar,.profile-avatar,.detail-mark,.profile-card h2,.service-art .art-name{font-style:normal}
.hero h1{font-family:var(--font-display);font-style:normal;font-weight:600;line-height:1.35;letter-spacing:0}
.stat strong,.comparison strong{font-family:var(--font-number);font-style:normal;font-variant-numeric:lining-nums tabular-nums;letter-spacing:0}
.primary:hover{background:var(--primary-hover);color:var(--bg);border-color:var(--primary-hover)}
.primary.danger:hover{background:var(--danger-hover);color:var(--bg);border-color:var(--danger-hover)}
dialog::backdrop{background:var(--backdrop)}
.hero-mask{background:oklch(from var(--overlay-ink) l c h / var(--media-mask))}
.theme-toggle{flex-shrink:0;min-width:44px;min-height:44px;color:var(--fg);background:var(--bg);border-color:var(--border)}
.theme-toggle svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.theme-icon-sun{display:none}
[data-theme=dark] .theme-icon-sun{display:block}
[data-theme=dark] .theme-icon-moon{display:none}
[data-theme=dark] .pill:not(.primary):hover,
[data-theme=dark] .icon-button:hover,
[data-theme=dark] .nav-link:hover,
[data-theme=dark] .service-link:hover,
[data-theme=dark] .service-bottom button:hover,
[data-theme=dark] .sidebar button:hover,
[data-theme=dark] .sidebar a:hover,
[data-theme=dark] .account-menu button:hover,
[data-theme=dark] .mobile-nav a:hover,
[data-theme=dark] .mobile-nav button:hover,
[data-theme=dark] .media-item:hover,
[data-theme=dark] .link-box .icon-button:hover{background:var(--hover-surface);color:var(--fg);border-color:var(--fg)}
[data-theme=dark] .service-card:nth-child(2) .service-art,
[data-theme=dark] .service-card:nth-child(3) .service-art{background:var(--surface)}
[data-theme=dark] .site-header{background:oklch(from var(--bg) l c h / .94);border-bottom:1px solid var(--border)}
[data-theme=dark] .site-header.scrolled{background:var(--bg);box-shadow:var(--shadow)}
[data-theme=dark] .hero-mask{background:oklch(10% .012 265 / calc(.66 + var(--media-mask)*.34))}
[data-theme=dark] .hero-copy,[data-theme=dark] .hero.light-copy .hero-copy{color:var(--fg);text-shadow:none}
[data-theme=dark] .hero.light-copy:not(.custom-media) .hero-copy{background:oklch(from var(--bg) l c h / .92)}
[data-theme=dark] .hero.light-copy .hero-note{background:var(--bg);color:var(--fg);text-shadow:none}
[data-theme=dark] dialog{box-shadow:0 25px 90px oklch(5% .012 265 / .5)}
[data-theme=dark] .media-item.selected{border-color:var(--fg)}
.wordmark,.stat strong,.comparison strong{font-synthesis:none}
.navigation .wordmark{font-size:min(var(--wordmark-size,28px),28px)}
@media(max-width:768px){.wordmark{font-size:25px}}
@media(max-width:430px){.nav{gap:10px}.account-nav{padding-inline:10px}}

/* 所有页面使用同一个导航；不继承首页或工具页的旧导航尺寸。 */
.vn-bar{width:min(1200px,calc(100% - 80px));height:74px;margin:auto;display:flex;align-items:center;gap:36px;color:var(--fg);font-family:var(--font-body);font-size:13px;position:relative}
.vn-brand{display:flex;align-items:center;min-height:44px;max-width:220px;font:600 var(--wordmark-size,28px)/1.2 var(--font-display);letter-spacing:-.02em;overflow-wrap:anywhere}
.vn-main,.vn-right{display:flex;align-items:center;gap:8px}.vn-right{margin-left:auto}.vn-trigger{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:8px 16px;border:1px solid transparent;border-radius:99px;background:transparent;color:var(--fg);font:550 13px/1.5 var(--font-body);letter-spacing:.02em;cursor:pointer}
.vn-bar svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.vn-bar .theme-toggle{margin:0;width:44px;height:44px}
.vn-trigger:hover,.vn-item:hover{background:var(--bg);color:var(--fg);border-color:var(--fg)}.vn-trigger.current{border-color:var(--border);background:var(--surface)}.vn-trigger[aria-expanded=true]{border-color:var(--fg)}.vn-services,.vn-account{position:relative}
:root[data-theme=dark] .vn-trigger:hover,:root[data-theme=dark] .vn-item:hover{background:var(--hover-surface);color:var(--fg);border-color:var(--fg)}
.vn-panel{position:absolute;top:calc(100% + 10px);left:0;min-width:220px;background:var(--bg);border:1px solid var(--border);padding:8px;border-radius:14px;box-shadow:var(--shadow);z-index:50}.vn-account>.vn-panel{left:auto;right:0}.vn-panel[hidden],.vn-subgroup[hidden]{display:none!important}
.vn-item{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:44px;text-align:left;padding:10px 14px;background:transparent;border:1px solid transparent;border-radius:8px;color:var(--fg);font:550 13px/1.6 var(--font-body);letter-spacing:.02em;cursor:pointer}.vn-item.current{background:var(--surface);border-color:var(--border)}.vn-subgroup{margin:4px 0 8px 14px;padding-left:8px;border-left:1px solid var(--border)}.vn-group-toggle[aria-expanded=true] svg{transform:rotate(180deg)}
.vn-bar .vn-mobile{display:none!important}.vn-bar :focus-visible{outline:3px solid var(--fg);outline-offset:3px}.site-header{z-index:50}.header{z-index:50}
.backup-layout{display:grid;grid-template-columns:minmax(260px,.9fr) minmax(0,1.4fr);gap:24px;align-items:start}.backup-layout>.card{margin:0}.backup-actions{display:grid;gap:12px;margin-top:24px}.backup-actions .pill{width:100%}.backup-time{font-size:18px;font-weight:550;line-height:1.7;margin-top:24px;font-variant-numeric:tabular-nums}.backup-info>div{display:grid;grid-template-columns:90px minmax(0,1fr);gap:20px}.backup-info dd{text-align:left;max-width:none}.backup-info .mono{overflow-wrap:anywhere}.backup-layout .digest{margin-bottom:0}.backup-layout .section-head{margin-bottom:20px}
@media(max-width:1100px){.vn-bar{width:calc(100% - 48px);gap:24px}}
@media(max-width:760px){.vn-bar{height:68px;width:calc(100% - 32px);gap:12px}.site-header{height:68px}.vn-brand{font-size:25px;max-width:38vw}.vn-right{gap:4px}.vn-account-button{padding:8px}.vn-account-button>span{display:none}.vn-bar .vn-mobile{display:inline-grid!important}.vn-main{display:none;position:absolute;left:0;right:0;top:68px;padding:12px;align-items:stretch;background:var(--bg);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}.vn-main.vn-open{display:grid}.vn-main>.vn-trigger{justify-content:start}.vn-services>.vn-trigger{width:100%;justify-content:space-between}.vn-services>.vn-panel{position:static;box-shadow:none;border:0;padding:6px 0 0;min-width:0}.vn-account>.vn-panel{right:-52px}.backup-layout{grid-template-columns:minmax(0,1fr);gap:18px}.backup-info>div{grid-template-columns:76px minmax(0,1fr);gap:12px}}

.service-card{grid-template-columns:96px minmax(0,1fr);min-height:160px;padding:20px;gap:24px}.service-art{min-height:112px;max-height:132px}.service-art svg{width:76px;height:76px}.service-body{padding:4px 0;min-width:0}.service-title{font-size:22px;line-height:1.5}.service-description{font-size:13px;margin-top:6px}.service-entry-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.service-entry-actions .pill{font-size:13px;min-height:44px;padding:8px 16px;max-width:100%;white-space:normal}.passport-title strong{overflow-wrap:anywhere;font-size:14px}.main-layout .sidebar{position:static}.site-header{height:74px}
@media(max-width:760px){.site-header,.site-header.scrolled{height:68px}.service-card{grid-template-columns:72px minmax(0,1fr);gap:16px;padding:18px;min-height:156px}.service-art{min-height:92px;max-height:112px}.service-art svg{width:62px;height:62px}.service-title{font-size:20px}.service-entry-actions{gap:8px;margin-top:16px}.service-entry-actions .pill{padding-inline:12px;font-size:12px}.passport-title strong{font-size:14px}}
@media(max-width:430px){.service-card{grid-template-columns:52px minmax(0,1fr);gap:12px;padding:16px}.service-art{min-height:72px;max-height:82px}.service-art svg{width:46px;height:46px}.service-description{font-size:12px}.service-entry-actions{margin-left:-64px;padding-top:12px}.service-title{font-size:18px}}