/* 品牌内容与功能界面分开；中文字体不继承英文 Display 的压缩和大小写规则。 */
@font-face{font-family:Island Serif;src:url('/fonts/island-serif.woff') format('woff');font-style:normal;font-weight:400;font-display:swap}
@font-face{font-family:Island Heading ZH;src:url('/fonts/island-heading-zh.woff') format('woff');font-style:normal;font-weight:900;font-display:swap;unicode-range:U+2E80-9FFF,U+F900-FAFF,U+FF00-FFEF}
@font-face{font-family:Island Subheading ZH;src:url('/fonts/island-subheading-zh.woff') format('woff');font-style:normal;font-weight:400;font-display:swap;unicode-range:U+2E80-9FFF,U+F900-FAFF,U+FF00-FFEF}
@font-face{font-family:Island Reading ZH;src:url('/fonts/island-reading-zh.woff') format('woff');font-style:normal;font-weight:400;font-display:swap;unicode-range:U+2E80-9FFF,U+F900-FAFF,U+FF00-FFEF}
:root{
  --font-ui:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Microsoft YaHei",sans-serif;
  --font-heading:"Island Serif","Island Heading ZH",var(--font-ui);
  --font-subheading:"Island Serif","Island Subheading ZH",var(--font-ui);
  --font-reading:"Island Reading ZH",var(--font-ui);
  --text-reading:17px;
  --text-summary:15px;
  --text-caption:12px;
  font-family:var(--font-ui);
}
h1,h2,h3{letter-spacing:0;text-wrap:pretty;overflow-wrap:break-word}
.page-heading h1{font-family:var(--font-heading);font-weight:900;letter-spacing:0;line-height:1.3;text-wrap:balance}
.brand-name,.brand-large,.stories-edition strong,.report-section>header>span,.avatar{font-family:"Island Serif",serif;font-weight:400;letter-spacing:0}
.brand-name{font-size:25px}
.login-brand-lockup h1{font-family:"Island Serif",serif;font-style:normal;font-weight:400;letter-spacing:0}
.brand-name small,.brand-large small{font-family:var(--font-ui)}
/* 中雅宋只用于内容列表和章节副标题；不在网页中仿造 AI 主标题外观。 */
.post-card h2,.story-card h2,.story-card:first-child h2,.brief-main h3,.story-section h3,.website-card-copy h3{
  font-family:var(--font-subheading);font-weight:400;letter-spacing:0;line-height:1.5;text-wrap:pretty;
}
.post-card h2{font-size:21px}
.story-card h2{font-size:25px}
.story-card:first-child h2{font-size:29px}
.brief-main h3,.website-card-copy h3{font-size:23px}
.detail-body #detail-title,.story-detail #detail-title,.report-intro h2{
  font-family:var(--font-heading);font-weight:900;letter-spacing:0;line-height:1.45;text-wrap:pretty;
}
.detail-body #detail-title{font-size:28px}
.story-detail #detail-title{font-size:32px}
.report-intro h2{font-size:30px}
.card-summary,.story-card .card-summary,.brief-main>p,.report-intro>p,.website-card-copy p{
  font-family:var(--font-reading);font-weight:400;font-size:var(--text-summary);line-height:1.85;letter-spacing:0;
}
.original-text>p,.story-section p{
  font-family:var(--font-reading);font-weight:400;font-size:var(--text-reading);line-height:1.85;letter-spacing:0;
}
/* 明确覆盖 .original-text p，保证导语大于正文。 */
.original-text.story-reading>.story-lead{font-size:18px;line-height:1.8!important}
.original-text.story-reading>.story-original-title{
  font-family:"Island Serif",var(--font-ui);font-size:16px;font-weight:400;line-height:1.6!important;
}
.story-original-title:lang(ja){font-family:"Hiragino Sans","Yu Gothic","Meiryo",sans-serif!important}
.story-original-title:lang(ko){font-family:"Apple SD Gothic Neo","Malgun Gothic",sans-serif!important}
.story-original-title:lang(zh){font-family:var(--font-subheading)!important}
.story-section h3{font-size:23px}
.original-text>.article-scope,.story-reading>.article-scope{font-family:var(--font-ui);font-size:13px;line-height:1.8}
.card-meta,.card-bottom,.story-card .card-meta,.story-reading-meta,.report-meta,.media-caption,.content-evidence,.story-in-feed,.story-figure figcaption,.page-footer,.tiny-label,.status-badge{font-size:var(--text-caption);line-height:1.6}
.card-meta{flex-wrap:wrap;row-gap:5px}
.card-meta>span:last-child{min-width:0;overflow-wrap:anywhere}
.card-bottom>span{min-width:0;overflow-wrap:anywhere}
.card-bottom button{flex-shrink:0}
.source-description,.source-coverage,.report-coverage article p,.agent-steps p,.agent-boundary p{font-size:14px;line-height:1.8}
.chip,.story-topic-chips .chip,.select-filters select,.order-select select,.search-box input{font-size:14px}
.eyebrow{font-size:12px;font-weight:700;line-height:1.3}
.section-heading h3,.account-form h2,.agent-panel h2,.source-card h2{letter-spacing:0}
@media(max-width:680px){
  :root{--text-reading:16px;--text-summary:15px}
  .page-heading h1{font-size:30px;line-height:1.35;letter-spacing:0}
  .post-card h2{font-size:21px}
  .story-card h2,.story-card:first-child h2,.brief-main h3,.website-card-copy h3{font-size:23px}
  .detail-body #detail-title,.story-detail #detail-title{font-size:27px;line-height:1.45}
  .report-intro h2{font-size:26px}
  .original-text.story-reading>.story-lead{font-size:17px}
  .story-section h3{font-size:22px}
  .sidebar .nav-item{font-size:13px}
  .chip,.story-topic-chips .chip{font-size:13px}
  .search-box input,.note-form textarea,.note-fields input{font-size:16px}
  .eyebrow{font-size:11px}
}

/* 语言切换和最新标记沿用现有控件与品牌色。 */
.latest-badge{display:inline-flex;align-items:center;flex:none;font-family:var(--font-ui);font-size:11px;font-weight:600;line-height:1.5;padding:2px 7px;border-radius:4px;color:var(--green,#006242);background:var(--mint,#d4e9e2);white-space:nowrap}
html[lang=en] .nav-item{line-height:1.4}
html[lang=en] .market-navigation summary>span:first-child{line-height:1.4}
html[lang=en] .page-heading h1{font-weight:400}
html[lang=en] .primary-nav .nav-item>span:first-of-type{min-width:0;overflow-wrap:normal}
html[lang=en] .brand-name small{letter-spacing:.03em;font-size:10px;white-space:normal;line-height:1.5}
.market-follow-count{white-space:nowrap}
@media(max-width:680px){
 .topbar-right{gap:4px}
 .topbar-right .guest-login-button{max-width:76px;white-space:normal;font-size:11px;line-height:1.25;padding:6px 8px}
 .mobile-navigation summary{padding-left:0;padding-right:0}
}

/* 固定宽度的滑块只移动 transform；切换语言时不重排控件。 */
.segmented-switch{position:relative;isolation:isolate;display:inline-grid;align-items:center;flex:none;gap:0;padding:3px;border:1px solid var(--line);border-radius:24px;background:var(--cream);color:var(--muted);height:38px;box-sizing:border-box}
.language-control{width:80px;grid-template-columns:repeat(2,minmax(0,1fr))}
.appearance-switch{width:108px;grid-template-columns:repeat(3,minmax(0,1fr))}
.segmented-switch button{position:relative;z-index:1;display:grid;place-items:center;min-width:0;height:30px;padding:0;border:0;border-radius:20px;font-family:var(--font-ui);font-size:12px;font-weight:600;line-height:1;cursor:pointer;color:inherit;transition:color .2s ease,transform .16s ease;-webkit-tap-highlight-color:transparent}
.segmented-switch button[aria-pressed=true]{color:var(--on-accent)}
.segmented-switch button:not([aria-pressed=true]):hover{color:var(--green)}
.segmented-switch button:active{transform:scale(.92)}
.segmented-switch button:focus-visible{outline:2px solid var(--green);outline-offset:3px}
.segmented-switch .icon{width:16px;height:16px}
.switch-indicator{position:absolute;z-index:0;top:3px;bottom:3px;left:3px;border-radius:20px;background:var(--green);box-shadow:0 1px 4px #00000012;pointer-events:none;transition:transform .3s cubic-bezier(.22,.8,.25,1),background-color .2s ease}
.language-control .switch-indicator{width:calc((100% - 6px)/2)}
.appearance-switch .switch-indicator{width:calc((100% - 6px)/3)}
.language-control[data-selected=en] .switch-indicator,.appearance-switch[data-selected=light] .switch-indicator{transform:translateX(100%)}
.appearance-switch[data-selected=dark] .switch-indicator{transform:translateX(200%)}
.login-appearance{display:flex;align-items:center;gap:12px}
.topbar,.workspace,.sidebar,body{transition:background-color .2s ease,color .2s ease}
@media(prefers-reduced-motion:reduce){.switch-indicator,.segmented-switch button,.topbar,.workspace,.sidebar,body{transition:none}.segmented-switch button:active{transform:none}}

/* 用途说明保持小字可读，并允许在手机上自然换行。 */
.site-disclaimer{display:block;font-family:var(--font-ui);font-size:12px;font-weight:400;line-height:1.7;color:var(--muted);letter-spacing:0;white-space:normal}
.page-heading .site-disclaimer{margin-top:12px}
.page-footer{flex-wrap:wrap}
.page-footer .site-disclaimer{flex-basis:100%;margin-top:4px}
.login-form-wrap{flex-direction:column}
.login-form-wrap>.site-disclaimer{width:100%;max-width:390px;margin-top:24px;flex-shrink:0}

/* 来源提供完整的阅读区域，滚动内容不再穿过圆角标题。 */
@media(min-width:681px){
 .sidebar{padding-top:22px;overflow-y:auto}
 .sidebar>.brand{padding-bottom:18px;flex-shrink:0}
 .sidebar>.workspace-label{margin-bottom:8px;flex-shrink:0}
 .sidebar>.primary-nav{gap:2px;flex-shrink:0}
 .sidebar>.primary-nav .nav-item{min-height:44px;padding-top:9px;padding-bottom:9px}
 #follow-navigation{margin-top:18px;flex:none;overflow:visible}
 #follow-navigation .market-navigation{margin:0 0 6px;overflow:visible}
 #follow-navigation .market-navigation>summary{font-size:12px;position:static;margin:0;border-radius:0}
 #follow-navigation .market-navigation>summary>.icon{margin-left:auto}
 #follow-navigation .market-navigation>nav{max-height:320px;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;scrollbar-width:thin;padding:4px}
 .sidebar-bottom{flex-shrink:0;padding-top:12px;margin-top:16px;border-top:1px solid #ffffff35}
 .sidebar-bottom .profile{margin-top:4px;padding:10px 4px;border-top:0}
 .sidebar-bottom.guest-profile{gap:7px;padding-bottom:14px}
 .sidebar-bottom.guest-profile>span,.sidebar-bottom.guest-profile>small{display:none}
 .sidebar-bottom>.nav-item{min-height:36px;padding:8px 10px}
}
.sidebar-feedback,.feedback-prominent{display:flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:9px 14px;border:1px solid var(--green);border-radius:22px;background:var(--green);color:var(--on-accent);font:500 13px var(--font-ui);white-space:nowrap}
.sidebar-feedback{width:100%;background:var(--nav-active);color:var(--nav-active-ink);border-color:transparent;margin-bottom:8px}
.feedback-prominent:hover,.sidebar-feedback:hover{filter:brightness(.95)}
.feedback-prominent .icon{width:16px;height:16px}
.follow-management{margin-bottom:28px;padding:24px;background:var(--cream);border-radius:12px}
.follow-management h2{margin:0 0 12px}
.follow-management .market-navigation{margin-top:8px}
.follow-management .market-navigation>summary{color:var(--ink);font-size:14px}
.follow-management .market-follow{color:var(--ink);border-color:var(--line);width:72px;font-size:12px}
.follow-management .market-follow[aria-pressed=true]{color:var(--ink)}
.follow-management .market-navigation>nav{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:8px 24px}
.follow-management .market-item{color:var(--ink)}
@media(max-width:680px){#follow-navigation .market-navigation>nav{max-height:280px;overflow:auto;overscroll-behavior:contain}#follow-navigation summary>.icon{margin-left:auto}.follow-management{padding:18px}.follow-management .market-navigation>nav{grid-template-columns:1fr}.feedback-prominent{min-height:36px;font-size:12px;padding:7px 10px}.feedback-prominent .icon{display:none}.topbar-right{flex-wrap:wrap}.topbar{height:auto;padding-top:6px;padding-bottom:6px}}
.workspace>.topbar{position:sticky;top:0;z-index:4;background:var(--paper)}