@charset "UTF-8";
/* 51吃瓜 | Mint-forward editorial system */
:root {
  --green: #168C78;
  --mint: #BFE8D8;
  --ink: #203B39;
  --paper: #FAFBF7;
  --surface: #EDF5EF;
  --text: #253330;
  --muted: #637570;
  --orange: #B95020;
  --line: #DDE7DF;
  --white: #FFFFFF;
  --radius-sm: 7px;
  --radius-md: 13px;
  --radius-lg: 20px;
  --shadow: 0 8px 28px rgb(25 58 49 / 5%);
  --font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --page-width: 1210px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 28px;
  --space-8: 32px;
  --space-9: 40px;
  --space-10: 48px;
  --space-11: 56px;
  --space-12: 64px;
}
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; scroll-padding-top: 110px; }
body { margin: 0; background: var(--paper); color: var(--text); font: 400 1rem/1.75 var(--font); font-synthesis: none; overflow-wrap: break-word; }
a { color: inherit; text-decoration: none; transition: color .16s ease, background-color .16s ease, border-color .16s ease; }
a:hover { color: var(--green); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }
img { display: block; max-width: 100%; height: auto; }
figure { margin: 0; }
p, h1, h2, h3, h4, ul { margin-top: 0; }
p:last-child { margin-bottom: 0; }
h1, h2, h3 { line-height: 1.33; letter-spacing: -.025em; color: var(--ink); text-wrap: pretty; }
h1 { font-size: clamp(2rem, 3.2vw, 3rem); }
h2 { font-size: clamp(1.5rem, 2.4vw, 2.05rem); }
h3 { font-size: 1.22rem; }
::selection { background: var(--mint); color: var(--ink); }
.shell { width: min(calc(100% - 52px), var(--page-width)); margin-inline: auto; }
.skip-link { position: fixed; top: -90px; left: 18px; z-index: 1000; padding: 8px 16px; color: white; background: var(--ink); border-radius: var(--radius-sm); }
.skip-link:focus { top: 12px; color: white; }
.header-sentinel { position: absolute; top: 0; height: 1px; width: 1px; pointer-events: none; }
.site-header { position: relative; background: rgb(250 251 247 / 96%); border-bottom: 1px solid var(--line); z-index: 30; }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 91px; gap: 25px; }
.identity { display: inline-flex; align-items: center; flex: 0 0 auto; gap: 11px; color: var(--ink); }
.identity:hover { color: var(--ink); }
.identity img { width: 46px; height: 46px; object-fit: contain; }
.identity__text { display: grid; gap: 0; line-height: 1.26; }
.identity__text strong { font-size: 1.43rem; font-weight: 850; letter-spacing: -.03em; }
.identity__text small { font-size: .7rem; color: var(--muted); margin-top: 5px; letter-spacing: .025em; }
.primary-nav { display: flex; align-items: center; gap: 29px; }
.primary-nav a { display: block; padding: 15px 0; font-size: .925rem; font-weight: 680; border-bottom: 2px solid transparent; }
.primary-nav a:hover, .primary-nav a[aria-current="page"] { border-bottom-color: var(--green); color: var(--green); }
.kicker { display: block; margin: 0 0 9px; color: var(--green); font-size: .78rem; font-weight: 800; letter-spacing: .095em; }
.eyebrow { display: inline-flex; align-items: center; color: var(--orange); font-size: .74rem; font-weight: 800; letter-spacing: .07em; line-height: 1.5; }
.lead-area { padding: 35px 0 20px; }
.lead-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 30px; }
.lead-heading h1 { margin-bottom: 9px; font-weight: 830; }
.lead-heading h1 span { color: var(--green); font-size: .77em; font-weight: 750; }
.lead-desc { color: var(--muted); margin-bottom: 0; max-width: 690px; line-height: 1.8; }
.lead-link { display: inline-flex; align-items: center; gap: 15px; white-space: nowrap; font-size: .89rem; font-weight: 720; color: var(--green); border-bottom: 1px solid var(--mint); padding: 8px 0; margin-bottom: 1px; }
.lead-link:hover { border-bottom-color: var(--green); }
.lead-grid { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr); gap: 30px; align-items: stretch; }
.lead-main { min-width: 0; }
.lead-side { display: grid; min-width: 0; }
.story { display: grid; grid-template-columns: 1fr; border-bottom: 1px solid var(--line); min-width: 0; padding: 15px 0 19px; }
.story__copy { min-width: 0; }
.story h3 { margin: 7px 0 8px; font-size: 1.17rem; line-height: 1.45; font-weight: 760; }
.story p { font-size: .875rem; line-height: 1.75; color: var(--muted); margin: 0; }
.story__link { display: inline-flex; align-items: center; gap: 9px; margin-top: 12px; color: var(--green); font-size: .83rem; font-weight: 750; }
.story__link span { font-size: 1.13rem; }
.story--feature { display: block; height: 100%; padding: 0; border-bottom: 0; background: white; border: 1px solid var(--line); overflow: hidden; border-radius: var(--radius-md); }
.story--feature .story__image { display: block; overflow: hidden; background: var(--surface); aspect-ratio: 1.45; }
.story--feature .story__image img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.story--feature .story__image:hover img { transform: scale(1.025); }
.story--feature .story__copy { padding: 23px 26px 27px; }
.story--feature h3 { font-size: clamp(1.4rem, 2.15vw, 1.78rem); margin: 9px 0 11px; }
.story--feature p { font-size: .94rem; }
.lead-side .story:first-child { padding-top: 4px; }
.lead-side .story:last-child { border-bottom: 0; padding-bottom: 0; }
.lead-side .story__link { display: none; }
.editorial-block { margin-top: 39px; padding-top: 31px; border-top: 2px solid var(--ink); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 23px; }
.section-heading h2 { margin: 0; font-weight: 820; }
.section-heading > p { max-width: 385px; margin-bottom: 0; color: var(--muted); font-size: .875rem; line-height: 1.75; }
.editorial-grid { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr); gap: 30px; }
.media-feature { display: flex; flex-direction: column; min-width: 0; overflow: hidden; border-radius: var(--radius-md); background: var(--surface); }
.media-feature > a { overflow: hidden; aspect-ratio: 1.67; }
.media-feature img { height: 100%; width: 100%; object-fit: cover; transition: transform .45s ease; }
.media-feature a:hover img { transform: scale(1.02); }
.media-feature__body { padding: 22px 26px 27px; }
.media-feature h3 { margin: 7px 0 10px; font-size: 1.48rem; font-weight: 790; }
.media-feature p { color: var(--muted); font-size: .92rem; line-height: 1.8; }
.compact-stack .story:first-child { padding-top: 0; }
.compact-stack .story { padding-bottom: 25px; padding-top: 23px; }
.compact-stack .story h3 { font-size: 1.2rem; }
.inline-note { margin-top: 24px; background: var(--surface); padding: 22px 24px 23px; border-left: 3px solid var(--mint); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.note-accent { font-size: .78rem; font-weight: 780; color: var(--green); }
.inline-note p { margin-top: 7px; color: var(--muted); font-size: .9rem; }
.report-strip { margin-top: 58px; padding: 32px 0 36px; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); }
.report-strip__head { margin-bottom: 25px; }
.report-strip__head h2 { margin: 0 0 5px; }
.report-strip__head p:last-child { margin: 0; color: var(--muted); font-size: .9rem; }
.report-strip__content { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1fr); gap: 36px; align-items: center; }
.report-strip__image { display: block; border-radius: var(--radius-md); overflow: hidden; aspect-ratio: 1.53; background: var(--surface); }
.report-strip__image img { height: 100%; width: 100%; object-fit: cover; }
.report-strip__list h3 { margin: 0 0 12px; font-size: 1.42rem; }
.report-strip__list p { color: var(--muted); font-size: .96rem; margin-bottom: 16px; }
.report-strip__list ul { padding-left: 22px; color: var(--ink); font-size: .91rem; line-height: 2.1; margin-bottom: 15px; }
.report-strip__list li::marker { color: var(--green); }
.text-link { display: inline-block; padding: 3px 0; color: var(--green); font-weight: 750; font-size: .89rem; border-bottom: 1px solid var(--mint); }
.text-link:hover { border-bottom-color: var(--green); }
.topic-list { padding: 46px 0 48px; }
.topic-list__row { display: flex; gap: 24px; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 21px 0; }
.topic-list__row h3 { margin: 6px 0 5px; font-size: 1.24rem; }
.topic-list__row p { color: var(--muted); max-width: 820px; font-size: .9rem; }
.round-arrow { display: inline-grid; place-items: center; flex: 0 0 44px; height: 44px; width: 44px; border-radius: 50%; background: var(--surface); color: var(--green); font-size: 1.3rem; }
.round-arrow:hover { background: var(--mint); }
.brand-panel { display: grid; grid-template-columns: minmax(0, 1fr) minmax(155px, .26fr); gap: 40px; align-items: center; margin: 4px 0 68px; padding: 33px 38px; background: var(--surface); border-radius: var(--radius-lg); border: 1px solid var(--line); }
.brand-panel h2 { margin-bottom: 13px; }
.brand-panel p { max-width: 800px; font-size: .9rem; line-height: 1.9; color: var(--muted); margin-bottom: 13px; }
.brand-panel p strong { color: var(--ink); word-break: break-all; }
.brand-panel__mark { justify-self: end; display: grid; place-items: center; width: 158px; height: 158px; background: var(--mint); border-radius: 48% 52% 48% 52%; color: var(--ink); font-weight: 850; font-size: 2.5rem; letter-spacing: -.07em; transform: rotate(-7deg); text-align: center; line-height: 1.15; }
.brand-panel__mark span { display: block; color: var(--green); }
.site-footer { background: #183431; color: #E6F2EB; padding: 39px 0 17px; }
.footer-inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: start; gap: 50px; }
.footer-inner strong { font-size: 1.35rem; color: white; }
.footer-inner p { max-width: 580px; color: #B8CEC6; font-size: .84rem; line-height: 1.85; margin: 8px 0 0; }
.footer-links { display: flex; gap: 27px; padding-top: 7px; }
.footer-links a { font-size: .84rem; font-weight: 620; color: #E3F0E9; }
.footer-links a:hover { color: var(--mint); }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; margin-top: 32px; padding-top: 14px; border-top: 1px solid #34504B; font-size: .75rem; color: #A4BEB5; }
.breadcrumbs { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; padding: 24px 0 0; color: var(--muted); font-size: .8rem; }
.breadcrumbs > span:last-child { color: var(--ink); }
.breadcrumbs a:hover { text-decoration: underline; }
.subpage { padding-bottom: 80px; }
.page-head { max-width: 950px; margin: 48px 0 40px; }
.page-head h1 { font-size: clamp(2rem, 3.7vw, 3.3rem); line-height: 1.25; margin-bottom: 20px; }
.page-head > p:last-child { font-size: 1.02rem; line-height: 1.9; color: var(--muted); max-width: 760px; }
.report-intro { display: grid; grid-template-columns: 1fr .9fr; gap: 30px; align-items: stretch; padding: 34px; border-radius: var(--radius-md); background: var(--surface); }
.report-intro > div { align-self: center; padding-right: 15px; }
.report-intro h2 { font-size: clamp(1.45rem, 2.5vw, 2.1rem); margin: 12px 0 14px; }
.report-intro p { font-size: .95rem; line-height: 1.9; color: var(--muted); }
.report-intro > a { min-width: 0; overflow: hidden; border-radius: var(--radius-sm); aspect-ratio: 1.6; }
.report-intro img { height: 100%; width: 100%; object-fit: cover; }
.report-articles { padding: 54px 0 20px; }
.report-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.report-cards .story { background: white; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 25px; }
.report-cards .story h3 { min-height: 3.2em; }
.report-cards .story__link { margin-top: 20px; }
.evidence-section { display: grid; grid-template-columns: .76fr 1.24fr; gap: 38px; border-top: 2px solid var(--ink); margin-top: 45px; padding: 29px 0 10px; }
.evidence-section h2 { max-width: 355px; }
.evidence-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.evidence-grid p { color: var(--muted); font-size: .91rem; line-height: 1.9; }
.return-home { margin: 26px 0 0; }
.return-home a { font-size: .9rem; font-weight: 750; color: var(--green); }
.article-layout { padding-bottom: 90px; }
.article-grid { display: grid; grid-template-columns: minmax(0, 1fr) 270px; gap: 68px; align-items: start; margin-top: 43px; }
.article-body { min-width: 0; }
.article-head { max-width: 820px; padding-bottom: 27px; }
.article-head h1 { font-size: clamp(2rem, 3.3vw, 3.05rem); margin: 14px 0 18px; }
.article-deck { font-size: 1.06rem; line-height: 1.9; color: var(--muted); max-width: 770px; }
.article-cover { border-radius: var(--radius-md); overflow: hidden; aspect-ratio: 1.75; background: var(--surface); }
.article-cover img { height: 100%; width: 100%; object-fit: cover; }
.prose { max-width: 780px; margin: 32px auto 0; font-size: 1.045rem; line-height: 2.13; }
.prose p { margin: 0 0 1.55em; }
.prose p:first-child::first-letter { color: var(--green); font-size: 1.14em; font-weight: 710; }
.article-end { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 22px; border-top: 1px solid var(--line); margin-top: 43px; padding-top: 19px; color: var(--green); font-size: .88rem; font-weight: 750; }
.article-aside { border-top: 3px solid var(--green); padding-top: 17px; }
.article-aside h2 { font-size: 1.12rem; margin-bottom: 14px; }
.aside-item { border-top: 1px solid var(--line); padding: 19px 0; }
.aside-item h3 { font-size: .93rem; line-height: 1.6; margin: 5px 0 0; }
.not-found { padding-top: 110px; padding-bottom: 155px; text-align: center; }
.not-found h1 { margin-bottom: 10px; }
.not-found > p:nth-of-type(2) { color: var(--muted); margin-bottom: 25px; }
.not-found > a { display: inline-flex; padding: 8px 18px; background: var(--green); border-radius: var(--radius-sm); color: white; margin: 7px; font-size: .88rem; }
.not-found > a:hover { background: var(--ink); }
@media (min-width: 1280px) {
  .lead-grid { gap: 37px; }
  .lead-side .story { padding-block: 20px; }
  .lead-side .story:first-child { padding-top: 3px; }
  .editorial-grid { gap: 38px; }
  .report-strip__content { gap: 48px; }
}
@media (max-width: 1050px) {
  .shell { width: min(calc(100% - 40px), var(--page-width)); }
  .lead-grid, .editorial-grid { gap: 22px; }
  .lead-grid { grid-template-columns: 1fr 1fr; }
  .lead-side .story { padding-block: 12px; }
  .lead-side .story h3 { font-size: 1.08rem; }
  .lead-side .story p { font-size: .82rem; }
  .story--feature .story__copy { padding: 19px 22px 23px; }
  .story--feature h3 { font-size: 1.48rem; }
  .report-strip__content { gap: 23px; }
  .article-grid { gap: 35px; grid-template-columns: minmax(0, 1fr) 220px; }
  .report-cards { gap: 16px; }
  .report-cards .story { padding: 19px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 25px; }
  .shell { width: calc(100% - 32px); }
  .header-inner { min-height: 79px; flex-wrap: wrap; gap: 0 18px; padding: 12px 0; }
  .identity__text strong { font-size: 1.22rem; }
  .identity__text small { font-size: .63rem; }
  .identity img { width: 39px; height: 39px; }
  .primary-nav { width: 100%; gap: 24px; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; margin-top: 9px; }
  .primary-nav a { padding: 8px 0 9px; font-size: .86rem; }
  .lead-area { padding-top: 28px; }
  .lead-heading { align-items: start; gap: 14px; margin-bottom: 21px; flex-direction: column; }
  .lead-heading h1 { font-size: clamp(1.83rem, 7vw, 2.5rem); margin-bottom: 12px; }
  .lead-heading h1 span { display: block; margin-top: 3px; font-size: .8em; }
  .lead-desc { font-size: .92rem; }
  .lead-link { font-size: .86rem; }
  .lead-grid, .editorial-grid { grid-template-columns: 1fr; gap: 22px; }
  .story--feature .story__image { aspect-ratio: 1.7; }
  .story--feature h3 { font-size: 1.48rem; }
  .lead-side .story { padding-block: 15px 18px; }
  .lead-side .story:first-child { padding-top: 0; }
  .lead-side .story h3 { font-size: 1.12rem; }
  .lead-side .story p { font-size: .87rem; }
  .editorial-block { margin-top: 29px; padding-top: 23px; }
  .section-heading { display: block; margin-bottom: 20px; }
  .section-heading > p { max-width: 100%; margin-top: 10px; }
  .media-feature > a { aspect-ratio: 1.8; }
  .media-feature__body { padding: 21px; }
  .compact-stack .story { padding-block: 16px; }
  .inline-note { margin-top: 14px; }
  .report-strip { margin-top: 43px; padding: 27px 0 33px; }
  .report-strip__content { grid-template-columns: 1fr; gap: 22px; }
  .report-strip__image { aspect-ratio: 1.8; }
  .topic-list { padding-block: 36px; }
  .brand-panel { grid-template-columns: 1fr; gap: 20px; padding: 25px 23px; margin-bottom: 42px; }
  .brand-panel__mark { display: none; }
  .footer-inner { grid-template-columns: 1fr; gap: 15px; }
  .footer-links { flex-wrap: wrap; gap: 20px; }
  .footer-bottom { margin-top: 25px; }
  .subpage { padding-bottom: 54px; }
  .page-head { margin: 32px 0 27px; }
  .report-intro { grid-template-columns: 1fr; padding: 23px; gap: 22px; }
  .report-intro > div { padding: 0; }
  .report-intro > a { order: -1; aspect-ratio: 1.75; }
  .report-articles { padding-top: 38px; }
  .report-cards { grid-template-columns: 1fr; gap: 12px; }
  .report-cards .story h3 { min-height: 0; }
  .report-cards .story { padding: 19px 20px; }
  .evidence-section { grid-template-columns: 1fr; gap: 18px; margin-top: 34px; }
  .evidence-section h2 { max-width: 100%; }
  .evidence-grid { grid-template-columns: 1fr; gap: 10px; }
  .article-grid { grid-template-columns: 1fr; margin-top: 26px; gap: 38px; }
  .article-aside { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 20px; }
  .article-aside h2 { grid-column: 1 / -1; }
  .article-head h1 { font-size: 2rem; }
  .article-cover { aspect-ratio: 1.5; }
  .prose { font-size: 1rem; line-height: 2; }
  .article-layout { padding-bottom: 50px; }
}
@media (max-width: 460px) {
  .shell { width: calc(100% - 28px); }
  .lead-heading h1 { font-size: 1.85rem; }
  .lead-heading h1 span { font-size: .72em; }
  .story--feature .story__image { aspect-ratio: 1.52; }
  .story--feature .story__copy { padding: 19px 18px 23px; }
  .story--feature h3 { font-size: 1.32rem; }
  .lead-side .story h3 { font-size: 1.06rem; }
  .lead-side .story p { font-size: .835rem; }
  .media-feature__body { padding: 19px; }
  .media-feature h3 { font-size: 1.27rem; }
  .report-strip__head h2 { font-size: 1.48rem; }
  .report-strip__list h3 { font-size: 1.23rem; }
  .topic-list__row { align-items: start; }
  .round-arrow { height: 36px; width: 36px; flex-basis: 36px; }
  .brand-panel { padding: 23px 19px; }
  .brand-panel p { font-size: .855rem; }
  .footer-bottom { align-items: start; flex-direction: column; gap: 4px; }
  .page-head h1 { font-size: 1.93rem; }
  .page-head > p:last-child { font-size: .95rem; }
  .report-intro { padding: 19px; }
  .report-intro h2 { font-size: 1.45rem; }
  .article-head h1 { font-size: 1.83rem; }
  .article-deck { font-size: .975rem; }
  .article-aside { grid-template-columns: 1fr; }
  .article-cover { aspect-ratio: 1.35; }
  .article-end { align-items: start; flex-direction: column; gap: 12px; }
  .not-found { padding-block: 75px 100px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}
@media print {
  body { background: white; color: black; font-size: 11pt; }
  .site-header { position: static; }
  .primary-nav, .site-footer, .article-aside, .lead-link, .story__link, .article-end { display: none !important; }
  .shell { max-width: none; width: 100%; }
  .article-grid, .lead-grid, .editorial-grid { display: block; }
  a { color: black; }
  .article-cover img { max-height: 180px; object-fit: contain; }
  h1, h2, h3 { break-after: avoid; }
  p { orphans: 3; widows: 3; }
}