:root {
    --ink: #142638;
    --muted: #65717c;
    --paper: #f4f6f8;
    --line: #dfe5e9;
    --yellow: #eafa57;
    --blue: #225d8c;
    --radius: 12px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; font-size: 16px; line-height: 1.7; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--blue); }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid #2d86d4; outline-offset: 4px; }
img { display: block; max-width: 100%; object-fit: cover; }
h1,h2,h3,p { margin: 0; }
h1,h2,h3 { line-height: 1.45; overflow-wrap: anywhere; }
h2 { font-size: 25px; font-weight: 800; letter-spacing: -.7px; }
h3 { font-size: 18px; font-weight: 700; }
p { overflow-wrap: anywhere; }
.container { width: min(1240px, calc(100% - 64px)); margin-inline: auto; }
.topbar { background: var(--ink); color: #eaf0f4; font-size: 12px; }
.top-inner,.masthead,.header-actions,.nav-inner,.page-kicker,.section-top,.section-heading,.meta,.copyright { display: flex; align-items: center; }
.top-inner { justify-content: space-between; min-height: 35px; letter-spacing: 1px; }
.site-header { background: white; border-bottom: 1px solid var(--line); }
.masthead { justify-content: space-between; padding-block: 22px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-name { font-size: 32px; letter-spacing: 1px; font-weight: 900; line-height: 1.25; }
.brand-caption { color: var(--muted); font-size: 12px; letter-spacing: 1px; margin-top: 3px; }
.header-actions { gap: 24px; }
.header-motto { color: var(--muted); font-size: 14px; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 6px; border-radius: 6px; padding: 10px 19px; font-size: 14px; font-weight: 700; border: 1px solid transparent; min-height: 44px; }
.dark { background: var(--ink); color: white; }
.dark:hover { background: #25445f; color: white; }
.yellow { background: var(--yellow); color: var(--ink); }
.yellow:hover { background: #f3ff90; color: var(--ink); }
.outline { border-color: #c8d2db; background: transparent; }
.site-header nav { border-top: 1px solid #edf0f2; }
.nav-inner { justify-content: space-between; gap: 6px; }
.nav-link { display: flex; align-items: center; gap: 7px; padding: 15px 9px 12px; font-size: 14px; font-weight: 700; border-bottom: 3px solid transparent; white-space: nowrap; }
.nav-link > span:first-child { font-size: 17px; }
.nav-link.active { border-color: var(--ink); }
.nav-link.active > span:first-child { color: #416000; }
.page-kicker { justify-content: space-between; gap: 16px; margin: 28px 0 16px; }
.eyebrow { font-size: 12px; letter-spacing: 1.7px; font-weight: 800; }
.small { font-size: 13px; color: var(--muted); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.95fr) minmax(0, 1fr); gap: 24px; }
.hero-slider { position: relative; min-width: 0; aspect-ratio: 1.68; border-radius: var(--radius); overflow: hidden; background: #213c50; color: white; }
.slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .45s ease; }
.slide.is-active { opacity: 1; visibility: visible; }
.slide > img { width: 100%; height: 100%; opacity: .82; }
.slide::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10,22,33,.02) 12%, rgba(10,22,33,.88) 90%); pointer-events: none; }
.hero-copy { position: absolute; z-index: 1; inset: auto 32px 70px; }
.hero-label { display: inline-block; background: var(--yellow); color: var(--ink); font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 3px; margin-bottom: 14px; }
.hero-copy h2 { font-size: clamp(24px, 2.6vw, 36px); line-height: 1.4; max-width: 95%; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden; }
.hero-copy a:hover { color: var(--yellow); }
.hero-copy p { color: #dce4ea; font-size: 14px; margin: 12px 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.hero-link { font-size: 14px; font-weight: 700; }
.slider-controls { position: absolute; bottom: 22px; left: 32px; right: 32px; z-index: 2; display: flex; align-items: center; gap: 12px; }
.slider-arrow,.slider-pause { width: 34px; height: 34px; padding: 0; border-radius: 50%; border: 1px solid #ffffff70; background: #15283970; color: white; font-size: 23px; line-height: 1; }
.slider-pause { margin-left: auto; font-size: 14px; }
.slider-dots { display: flex; align-items: center; }
.dot { border: 0; background: transparent; width: 25px; height: 32px; padding: 10px 6px; }
.dot::before { content: ''; display: block; height: 6px; width: 6px; background: #ffffff70; border-radius: 10px; }
.dot.selected::before { background: var(--yellow); width: 15px; }
.editor-panel { border: 1px solid var(--line); border-radius: var(--radius); background: white; padding: 25px; display: flex; flex-direction: column; min-width: 0; }
.editor-panel > .eyebrow { color: var(--muted); margin-bottom: 12px; }
.editor-panel > h2 { font-size: 30px; white-space: pre-line; }
.editor-panel > .lead { font-size: 14px; color: var(--muted); margin: 10px 0 10px; }
.brief-item { display: flex; gap: 13px; padding: 15px 0; border-top: 1px solid var(--line); }
.brief-number { color: #9cabba; font-size: 24px; font-family: Georgia, serif; font-style: italic; }
.brief-item h3 { font-size: 16px; }
.brief-item .tag { font-size: 12px; }
.editor-panel > .more { margin-top: auto; }
.more { color: var(--blue); font-size: 14px; font-weight: 700; }
.home-section { margin-top: 42px; }
.section-top { justify-content: space-between; gap: 20px; margin-bottom: 19px; }
.section-heading { flex-wrap: wrap; gap: 10px; }
.section-icon { display: inline-flex; justify-content: center; align-items: center; width: 30px; height: 30px; background: var(--yellow); border-radius: 6px; font-size: 21px; font-weight: 700; }
.section-sub { color: var(--muted); font-size: 13px; padding-left: 7px; }
.cards { display: grid; gap: 22px; }
.four { grid-template-columns: repeat(4, minmax(0,1fr)); }
.three { grid-template-columns: repeat(3, minmax(0,1fr)); }
.two { grid-template-columns: repeat(2, minmax(0,1fr)); }
.story-card { display: flex; flex-direction: column; min-width: 0; border: 1px solid var(--line); background: white; border-radius: 10px; overflow: hidden; }
.card-image { display: block; aspect-ratio: 1.6; overflow: hidden; background: #dbe4e9; }
.card-image img { width: 100%; height: 100%; transition: transform .4s; }
.story-card:hover .card-image img { transform: scale(1.035); }
.card-body { padding: 18px; display: flex; flex-direction: column; flex: 1; }
.tag { display: inline-block; color: var(--blue); font-size: 12px; font-weight: 700; letter-spacing: .4px; margin-bottom: 7px; }
.card-body h3 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 2.9em; }
.summary { color: var(--muted); font-size: 14px; margin-top: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.meta { flex-wrap: wrap; gap: 12px; font-size: 12px; color: var(--muted); margin-top: 16px; }
.card-body .meta { margin-top: auto; padding-top: 17px; justify-content: space-between; }
.latest-section { background: #e9eef2; border-radius: var(--radius); padding: 25px; }
.timeline-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 26px; }
.timeline-card { border-left: 2px solid #b7c5d0; padding-left: 20px; display: flex; flex-direction: column; }
.timeline-label { font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.timeline-card p { font-size: 14px; color: var(--muted); margin: 10px 0 16px; }
.timeline-card .more { margin-top: auto; }
.compact .card-image { aspect-ratio: 2.05; }
.split { display: grid; grid-template-columns: 1.15fr 1fr; gap: 24px; }
.hot-panel,.verify-panel { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: 25px; min-width: 0; }
.rank-row { display: flex; gap: 18px; border-top: 1px solid var(--line); padding: 20px 0; }
.rank-row:last-child { padding-bottom: 0; }
.rank-number { font-size: 31px; line-height: 1.25; font-family: Georgia,serif; font-style: italic; color: #53758e; }
.rank-row p { font-size: 14px; color: var(--muted); margin-top: 7px; }
.verify-panel { background: #edf3eb; border-color: #d8e3d3; }
.verify-panel .section-icon { background: #cfe5c6; }
.verify-item { border-top: 1px solid #cfdbcc; padding: 18px 0; }
.verify-item p { font-size: 14px; color: #576751; margin-top: 8px; }
.weekend { border-top: 2px solid var(--ink); padding-top: 24px; }
.discovery-card { border-top: 1px solid #becbd5; padding: 17px 0; }
.discovery-card p { color: var(--muted); font-size: 14px; margin-top: 8px; }
.about-block { display: grid; grid-template-columns: .8fr 1.2fr; gap: 50px; padding: 32px; background: white; border: 1px solid var(--line); border-radius: var(--radius); }
.about-block h2 { margin-top: 8px; }
.about-lead { font-size: 19px; font-weight: 700; margin-top: 12px; }
.about-block > div:last-child p { color: var(--muted); font-size: 15px; margin-bottom: 15px; }
.subscribe-band { margin-top: 48px; margin-bottom: 0; background: var(--ink); color: white; padding: 32px; border-radius: 12px; display: grid; grid-template-columns: 96px 1fr auto; align-items: center; gap: 26px; }
.subscribe-band img { border-radius: 14px; }
.subscribe-copy .eyebrow { color: var(--yellow); margin-bottom: 7px; }
.subscribe-copy > p:last-child { color: #c1ced8; font-size: 14px; margin-top: 9px; max-width: 560px; }
.subscribe-action { max-width: 230px; }
.subscribe-action .small { color: #bac8d3; margin-top: 11px; }
footer { margin-top: 40px; background: white; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-block: 40px; }
.footer-grid h3 { font-size: 14px; margin-bottom: 12px; }
.footer-grid > div > a { display: block; font-size: 13px; color: var(--muted); margin: 7px 0; }
.footer-brand p { white-space: pre-line; color: var(--muted); font-size: 14px; margin-top: 12px; }
.copyright { justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); padding-block: 20px; font-size: 12px; color: var(--muted); }
.breadcrumb { padding-block: 23px; color: var(--muted); font-size: 14px; }
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 0; margin: 0; list-style: none; }
.breadcrumb li+li::before { content: '/'; margin-right: 8px; color: #99a7b2; }
.channel-banner { padding: 35px; border-radius: var(--radius); background: var(--ink); color: white; }
.channel-banner .eyebrow { color: var(--yellow); }
.channel-banner h1 { font-size: 40px; margin-top: 7px; }
.channel-tagline { font-size: 22px; margin: 8px 0; }
.channel-banner .lead { color: #c3d0da; max-width: 800px; }
.channel-feature { display: grid; grid-template-columns: 1.2fr 1fr; border-radius: var(--radius); overflow: hidden; background: white; border: 1px solid var(--line); }
.feature-image { aspect-ratio: 1.8; min-height: 100%; display: block; background: #dce5ec; }
.feature-image img { width: 100%; height: 100%; }
.feature-copy { padding: 30px; display: flex; align-items: flex-start; flex-direction: column; justify-content: center; gap: 15px; }
.feature-copy p { color: var(--muted); }
.feature-copy time { font-size: 13px; color: var(--muted); }
.more-panel { text-align: center; padding: 35px 20px; margin-top: 30px; border-top: 1px solid var(--line); }
.more-panel p { color: var(--muted); margin: 12px 0 20px; }
.article-layout { display: grid; grid-template-columns: minmax(0,850px) minmax(0,1fr); gap: 28px; align-items: start; }
.article-main { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: 38px; min-width: 0; }
.article-header h1 { font-size: 34px; line-height: 1.5; }
.article-deck { font-size: 19px; color: var(--muted); margin: 18px 0; }
.reading-note { background: var(--paper); font-size: 13px; color: var(--muted); padding: 15px; margin-top: 20px; border-left: 3px solid #c0d3de; }
.prose { font-size: 17px; line-height: 1.95; }
.prose > h2,.prose > h3 { margin: 30px 0 14px; }
.prose > p { margin: 15px 0; }
.prose figure { margin: 28px 0; }
.prose figure img { width: 100%; height: auto; aspect-ratio: 1.65; background: #dbe4e9; border-radius: 8px; }
.prose figcaption { font-size: 12px; color: var(--muted); margin-top: 8px; }
.article-section h2 { margin: 32px 0 17px; }
.chapter-end { font-size: 12px; color: #7b8b98; border-bottom: 1px solid var(--line); padding-bottom: 20px; }
.article-conclusion { padding: 23px; background: #edf3eb; border-radius: 8px; margin-top: 28px; }
.article-conclusion p { margin: 10px 0; }
.article-conclusion a { font-size: 14px; color: var(--blue); text-decoration: underline; }
.article-pager { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; border-top: 1px solid var(--line); margin: 30px 0 25px; padding-top: 22px; font-size: 14px; }
.article-pager span { color: var(--muted); }
.article-sidebar { border: 1px solid var(--line); border-radius: 10px; background: white; padding: 24px; }
.article-sidebar h2 { margin: 10px 0 15px; }
.related-item { border-top: 1px solid var(--line); padding: 20px 0; }
.related-item p { font-size: 14px; color: var(--muted); margin-top: 10px; }
.info-page { max-width: 900px; margin-inline: auto; background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: 40px; }
.info-page h1 { font-size: 36px; }
.info-page .eyebrow { color: var(--blue); }
.feed-box { display: flex; gap: 14px; justify-content: space-between; align-items: center; background: var(--paper); border-radius: 7px; padding: 15px; margin: 15px 0; flex-wrap: wrap; }
.feed-box code { overflow-wrap: anywhere; font-size: 15px; }
fieldset { border: 1px solid var(--line); border-radius: 8px; margin: 20px 0; padding: 20px; }
legend { font-size: 14px; padding-inline: 10px; }
.topic-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 14px; }
.topic-choice { display: flex; align-items: center; gap: 9px; font-size: 14px; cursor: pointer; }
.topic-choice input { width: 18px; height: 18px; accent-color: var(--ink); }
#subscription-form > button { margin: 0 12px 10px 0; }
#subscription-status { color: var(--blue); min-height: 1.5em; }
#saved-topics { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.saved-topic { display: flex; justify-content: space-between; border: 1px solid var(--line); padding: 10px 14px; font-size: 14px; }
.saved-topic a:last-child { color: var(--blue); }
[hidden] { display: none !important; }
.image-unavailable { object-fit: contain; background: #dbe4e9; color: #415665; font-size: 13px; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition: none !important; }
}