/* 51吃瓜 editorial stylesheet — no external framework required */
:root{--green:#168c78;--mint:#bfe8d8;--ink:#203b39;--paper:#fafbf7;--panel:#edf5ef;--body:#253330;--muted:#637570;--hot:#b95020;--line:#dce8df;--white:#fff;--radius:8px;--shell:1220px;--shadow:0 6px 26px rgba(20,65,56,.045)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--body);font:16px/1.73 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}a:hover{color:var(--green)}button,input{font:inherit}h1,h2,h3,p,figure,ol{margin-top:0}h1,h2,h3{color:var(--ink);line-height:1.36;letter-spacing:-.018em}h1{font-weight:800}h2{font-weight:750}h3{font-weight:700}p{overflow-wrap:anywhere}a:focus-visible,button:focus-visible{outline:3px solid var(--hot);outline-offset:4px;border-radius:3px}.shell{width:min(calc(100% - 48px),var(--shell));margin-inline:auto}.skip-link{position:absolute;top:-100px;left:20px;background:var(--ink);color:#fff;z-index:99;padding:9px 15px}.skip-link:focus{top:8px;color:#fff}.top-stripe{height:5px;background:linear-gradient(90deg,var(--green) 0 73%,var(--hot) 73% 82%,var(--mint) 82%)}.site-header{background:rgba(250,251,247,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px);transition:box-shadow .18s}.site-header.is-scrolled{box-shadow:var(--shadow)}.header-inner{display:flex;justify-content:space-between;align-items:center;gap:25px;min-height:80px}.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;line-height:1.15}.brand img{width:43px;height:43px;object-fit:contain}.brand strong{display:block;font-size:27px;letter-spacing:-1px;color:var(--green);font-weight:900}.brand small{font-size:11px;letter-spacing:.09em;color:var(--muted);display:block;margin-top:4px}.global-nav{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:14px;font-weight:650}.global-nav a{padding:11px 16px;border-radius:4px;white-space:nowrap;transition:background .18s,color .18s}.global-nav a:hover{background:var(--panel)}.global-nav a[aria-current="page"]{background:var(--mint);color:var(--ink)}.main-home{padding-block:36px 68px}.overline{color:var(--green);font-size:12px;letter-spacing:.09em;font-weight:750;text-transform:uppercase}.live-dot{display:inline-block;width:7px;height:7px;background:var(--hot);border-radius:50%;margin-right:8px;vertical-align:middle}.lead{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:24px;margin:0 0 37px;align-items:stretch}.lead-copy{background:var(--panel);border-radius:var(--radius);padding:36px 36px 29px;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden}.lead-copy:after{content:"";position:absolute;width:110px;height:110px;right:-60px;bottom:-56px;border:32px solid rgba(22,140,120,.09);border-radius:50%;pointer-events:none}.lead-copy .overline{margin-bottom:17px}.lead-copy h1{font-size:clamp(35px,4.2vw,56px);margin:0 0 19px;letter-spacing:-1.8px}.lead-copy h1 span{display:block;font-size:clamp(22px,2.25vw,29px);letter-spacing:0;font-weight:680;margin-top:6px}.lead-desc{color:#455952;font-size:15px;line-height:1.95;max-width:49ch;margin-bottom:23px}.lead-tags{display:flex;flex-wrap:wrap;gap:8px;position:relative;z-index:1}.lead-tags span{font-size:12px;color:#3d6d5e;background:#fff;border:1px solid #deede3;padding:4px 10px;border-radius:30px}.lead-feature{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:13px 14px 18px;min-width:0;display:flex;flex-direction:column}.feature-label{color:var(--hot);font-weight:800;font-size:12px;letter-spacing:.08em;margin:0 0 9px}.feature-image{display:block;background:var(--panel);border-radius:5px;overflow:hidden;aspect-ratio:16/7.7}.feature-image img{height:100%;width:100%;object-fit:cover;transition:transform .3s}.feature-image:hover img{transform:scale(1.035)}.lead-feature>div:last-child{padding:12px 5px 0}.eyebrow{font-size:12px;font-weight:650;color:var(--green);letter-spacing:.04em}.lead-feature h2{font-size:23px;line-height:1.45;margin:6px 0 8px}.lead-feature p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}.home-columns{display:grid;grid-template-columns:minmax(0,2.18fr) minmax(250px,.82fr);gap:36px;align-items:start}.primary-feed,.rail{min-width:0}.section-heading{display:flex;justify-content:space-between;gap:18px;align-items:end;margin:5px 0 20px;padding-bottom:12px;border-bottom:2px solid var(--ink)}.section-heading--tight{margin-top:33px}.section-kicker{font-size:11px;letter-spacing:.14em;color:var(--green);font-weight:850}.section-heading h2{font-size:23px;margin:3px 0 0;line-height:1.3}.section-aside{font-size:12px;color:var(--muted);text-align:right}.section-action{font-size:13px;color:var(--green);font-weight:750;white-space:nowrap}.feature-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.story-card{min-width:0;position:relative}.story-card--feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.story-photo{display:block;aspect-ratio:16/9;background:var(--panel);overflow:hidden}.story-photo img{width:100%;height:100%;object-fit:cover;transition:transform .28s}.story-photo:hover img{transform:scale(1.035)}.story-body{padding:5px 0}.story-card--feature .story-body{padding:15px 17px 19px}.story-body .eyebrow{display:flex;align-items:center;gap:7px;margin-bottom:7px}.story-body h3{font-size:18px;line-height:1.45;margin:0 0 8px}.story-card--feature .story-body h3{font-size:18px}.story-body p{color:var(--muted);font-size:13.5px;line-height:1.75;margin:0 0 10px}.text-link{font-size:12px;font-weight:750;color:var(--green)}.text-link span{display:inline-block;transition:transform .2s}.text-link:hover span{transform:translate(2px,-2px)}.stream-list{border-top:1px solid var(--line)}.stream-list .story-card{border-bottom:1px solid var(--line);padding:15px 0}.stream-list .story-body{display:grid;grid-template-columns:minmax(0,1fr) auto;column-gap:14px}.stream-list .eyebrow,.stream-list h3,.stream-list p{grid-column:1}.stream-list .text-link{grid-column:2;grid-row:2 / 4;align-self:center;white-space:nowrap}.stream-list h3{font-size:18px}.stream-list p{margin-bottom:0}.rail{padding-top:6px}.rail-panel{border:1px solid var(--line);background:#fff;border-radius:var(--radius);padding:23px 23px 24px;margin-bottom:17px}.rail-panel--soft{background:var(--panel);border-color:#dbeadf}.rail-tag{font-size:11px;letter-spacing:.11em;font-weight:850;color:var(--hot);margin-bottom:10px}.rail-panel h2{font-size:20px;line-height:1.45;margin:0 0 12px}.rail-panel p:not(.rail-tag){font-size:13.5px;color:#536660;line-height:1.9;margin-bottom:17px}.rail-panel ol{padding-left:21px;margin:14px 0 15px;color:#4c605a;font-size:13px}.rail-panel li{padding-left:3px;margin:0 0 8px}.rail-panel a{font-weight:750;color:var(--green);font-size:13px}.rail-mini{border-top:2px solid var(--green);display:grid;gap:10px;padding:15px 4px;font-size:13px}.rail-mini strong{font-size:14px}.rail-mini span{color:var(--muted);line-height:1.9}.brand-info{margin-top:46px;background:#e6f1e9;border:1px solid #d5e8da;padding:31px 34px;display:grid;grid-template-columns:minmax(0,1.6fr) minmax(200px,.8fr);gap:40px;border-radius:var(--radius)}.brand-info h2{font-size:24px;margin:4px 0 13px}.brand-info p{font-size:14px;line-height:1.9;color:#43564f;margin-bottom:9px}.brand-url{display:flex;flex-direction:column;justify-content:center;align-items:flex-start;border-left:1px solid #c9dbd0;padding-left:28px;min-width:0;gap:9px}.brand-url small{color:var(--muted)}.brand-url strong{font-size:15px;color:var(--ink);overflow-wrap:anywhere}.brand-url a{font-size:13px;color:var(--green);font-weight:700}.site-footer{background:#203b39;color:#eaf4f0;margin-top:45px;padding-top:43px}.footer-grid{display:grid;grid-template-columns:1.35fr .7fr 1fr;gap:55px;padding-bottom:35px}.footer-brand{font-weight:850;font-size:24px;color:#bfe8d8}.footer-grid strong{display:block;margin-bottom:15px;color:#fff;font-size:14px}.footer-grid p{color:#b6c8c0;font-size:13px;line-height:1.95;margin:9px 0}.footer-grid a:not(.footer-brand){display:block;color:#b6c8c0;font-size:13px;line-height:2.3}.footer-grid a:hover{color:#fff}.footer-base{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #4a645d;padding:17px 0 20px;font-size:12px;color:#a8c2b6}.breadcrumbs{display:flex;flex-wrap:wrap;gap:9px;font-size:12px;color:var(--muted);margin:10px 0 27px}.breadcrumbs a{color:var(--green)}.section-page,.article-page{padding-block:25px 50px}.page-intro{display:grid;grid-template-columns:minmax(0,1fr) 210px;gap:24px;align-items:end;padding-bottom:31px;border-bottom:1px solid var(--line)}.page-intro h1{font-size:clamp(29px,3.3vw,42px);margin:8px 0 14px}.page-intro p:last-child{max-width:70ch;font-size:15px;color:var(--muted);line-height:2;margin-bottom:0}.intro-aside{padding:20px;border-left:3px solid var(--green);background:var(--panel);display:flex;flex-direction:column;gap:7px}.intro-aside span{font-size:12px;color:var(--muted)}.intro-aside strong{font-size:16px}.filters{display:flex;gap:9px;flex-wrap:wrap;margin:22px 0 27px}.filters a{font-size:13px;padding:8px 18px;border:1px solid var(--line);border-radius:4px;background:#fff;font-weight:650}.filters a:hover{border-color:var(--green)}.filters a[aria-current="page"]{background:var(--green);color:#fff;border-color:var(--green)}.listing-layout{display:grid;grid-template-columns:minmax(0,1.85fr) minmax(240px,.75fr);gap:45px}.listing-feed{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.listing-feed .story-card:first-child{grid-column:1/-1;display:grid;grid-template-columns:48% 1fr;min-height:275px}.listing-feed .story-card:first-child .story-photo{height:100%;aspect-ratio:auto}.listing-feed .story-card:first-child .story-body{display:flex;flex-direction:column;justify-content:center;padding:25px}.listing-feed .story-card:first-child h3{font-size:22px}.listing-feed .story-card:first-child .text-link{margin-top:10px}.listing-aside{padding-top:15px}.article-layout{display:grid;grid-template-columns:minmax(0,780px) minmax(220px,1fr);gap:50px;align-items:start}.article-heading{padding-bottom:24px;border-bottom:1px solid var(--line)}.article-heading h1{font-size:clamp(29px,3.15vw,43px);margin:11px 0 17px}.article-summary{font-size:17px;line-height:1.95;color:#516660;max-width:66ch;margin:0}.separator{padding-inline:5px;color:#a1b2ad}.article-figure{margin:25px 0 34px}.article-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:6px;background:var(--panel)}.article-figure figcaption{font-size:12px;color:var(--muted);padding:8px 2px}.prose{max-width:75ch}.prose p{font-size:17px;line-height:2.13;margin:0 0 27px;letter-spacing:.012em}.prose p:first-child:first-letter{font-weight:750;color:var(--ink)}.article-end{margin:42px 0 10px;border-block:1px solid var(--line);padding:20px 0;display:flex;gap:20px;justify-content:space-between;align-items:center;flex-wrap:wrap;font-size:13px;color:var(--muted)}.article-end a{color:var(--green);font-weight:750}.article-aside{padding-top:7px}.related-links{display:grid}.related-links a{display:flex;justify-content:space-between;gap:9px;padding:12px 0;border-bottom:1px solid var(--line);font-size:13px;line-height:1.6;font-weight:600!important;color:var(--ink)!important}.related-links a:hover{color:var(--green)!important}.related-links a span{flex:0 0 auto;color:var(--green)}.back-home{display:inline-block;margin-top:15px;font-size:13px;color:var(--green);font-weight:700}.error-page{padding-block:100px 130px;min-height:50vh}.error-page h1{font-size:clamp(32px,5vw,50px);margin:12px 0 15px}.error-page>p:not(.overline){max-width:57ch;color:var(--muted)}.error-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}.error-links a{background:var(--green);color:#fff;padding:9px 17px;border-radius:4px;font-size:14px;font-weight:700}.error-links a+a{color:var(--green);border:1px solid var(--green);background:transparent}.image-unavailable{background:var(--panel);color:transparent}.story-photo,.feature-image{position:relative}.story-photo:focus-visible,.feature-image:focus-visible{outline-offset:-3px}
/* Tablet layouts remain a genuine editorial reflow rather than a scaled desktop page. */
@media(max-width:1050px){.home-columns{grid-template-columns:minmax(0,1.8fr) 255px;gap:23px}.article-layout,.listing-layout{gap:25px}.lead-copy{padding:28px 25px}.brand-info{gap:20px}.feature-pair{gap:11px}.story-card--feature .story-body{padding:14px}.rail-panel{padding:18px}.global-nav{gap:2px}.global-nav a{padding:9px 10px}}
@media(max-width:850px){.shell{width:min(calc(100% - 36px),var(--shell))}.header-inner{min-height:73px}.lead{grid-template-columns:1fr 1fr;gap:15px}.lead-copy{padding:22px}.lead-copy h1{font-size:36px}.lead-copy h1 span{font-size:22px}.lead-desc{font-size:13.5px}.lead-feature h2{font-size:18px}.home-columns{grid-template-columns:1fr}.rail{display:grid;grid-template-columns:1fr 1fr;gap:15px}.rail-panel{margin-bottom:0}.rail-mini{grid-column:1/-1}.brand-info{margin-top:30px}.article-layout{grid-template-columns:minmax(0,1fr)}.article-aside{display:grid;grid-template-columns:1fr;max-width:100%;padding-top:15px}.article-aside .rail-panel{margin-bottom:7px}.listing-layout{grid-template-columns:1fr}.listing-aside{display:grid;grid-template-columns:1fr 1fr;gap:15px}.listing-aside .rail-panel{margin-bottom:0}.footer-grid{gap:20px}.section-heading h2{font-size:21px}}
@media(max-width:640px){html{scroll-padding-top:120px}.shell{width:min(calc(100% - 30px),var(--shell))}.header-inner{align-items:flex-start;flex-direction:column;padding-block:12px;gap:10px}.brand img{width:35px;height:35px}.brand strong{font-size:22px}.brand small{font-size:10px}.global-nav{width:100%;display:flex;overflow-x:auto;flex-wrap:nowrap;scrollbar-width:thin;gap:6px;padding-bottom:1px}.global-nav a{padding:6px 10px;font-size:12px}.site-header{position:relative}.main-home{padding-top:17px}.lead{display:flex;flex-direction:column;gap:13px;margin-bottom:25px}.lead-copy{padding:25px 21px}.lead-copy h1{font-size:36px}.lead-copy h1 span{font-size:21px}.lead-desc{font-size:14px}.lead-feature{padding:10px}.lead-feature h2{font-size:19px}.feature-image{aspect-ratio:16/8.6}.section-heading{gap:10px;align-items:flex-end;margin-bottom:14px}.section-heading h2{font-size:20px}.section-aside{display:none}.feature-pair{grid-template-columns:1fr;gap:13px}.story-card--feature{display:grid;grid-template-columns:37% minmax(0,1fr);min-height:145px}.story-card--feature .story-photo{aspect-ratio:auto;height:100%;min-height:142px}.story-card--feature .story-body{padding:11px}.story-card--feature .story-body h3{font-size:15px;line-height:1.45}.story-card--feature .story-body p{font-size:12px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}.story-body .eyebrow{font-size:10px;margin-bottom:4px}.story-body .text-link{font-size:11px}.stream-list .story-body{grid-template-columns:1fr}.stream-list .text-link{grid-column:1;grid-row:auto;margin-top:8px}.stream-list h3{font-size:16px}.stream-list .story-card{padding:12px 0}.section-heading--tight{margin-top:23px}.rail{grid-template-columns:1fr;gap:11px}.rail-mini{grid-column:1}.rail-panel{padding:19px}.brand-info{grid-template-columns:1fr;padding:23px 19px;gap:13px}.brand-url{border-left:0;border-top:1px solid #c9dbd0;padding:14px 0 0}.footer-grid{grid-template-columns:1fr 1fr;gap:22px}.footer-grid>div:first-child{grid-column:1/-1}.footer-base{flex-direction:column;gap:3px}.section-page,.article-page{padding-top:15px}.page-intro{grid-template-columns:1fr;gap:20px}.page-intro h1{font-size:30px}.page-intro p:last-child{font-size:14px}.intro-aside{max-width:270px;padding:12px 16px}.filters{margin:15px 0 22px;gap:6px}.filters a{font-size:12px;padding:7px 12px}.listing-feed{grid-template-columns:1fr;gap:13px}.listing-feed .story-card:first-child{grid-column:1;display:grid;grid-template-columns:37% minmax(0,1fr);min-height:142px}.listing-feed .story-card:first-child .story-body{display:block;padding:11px}.listing-feed .story-card:first-child h3{font-size:15px}.listing-feed .story-card:first-child .text-link{margin-top:0}.listing-feed .story-card:first-child .story-photo{min-height:142px}.listing-aside{grid-template-columns:1fr;padding-top:5px}.article-heading h1{font-size:29px}.article-summary{font-size:15px}.article-figure{margin:17px 0 25px}.prose p{font-size:15px;line-height:2.1;margin-bottom:22px}.article-end{align-items:flex-start;flex-direction:column;gap:11px}.error-page{padding-block:60px 90px}}
@media(max-width:380px){.shell{width:min(calc(100% - 22px),var(--shell))}.lead-copy{padding:21px 17px}.lead-copy h1{font-size:32px}.brand-info{padding:20px 15px}.story-card--feature,.listing-feed .story-card:first-child{grid-template-columns:34% minmax(0,1fr)}.story-card--feature .story-body p{display:none}.story-body .text-link{font-size:10px}.section-heading h2{font-size:19px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:1}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
@media print{body{background:white;color:black;font-size:12pt}.top-stripe,.site-header,.site-footer,.rail,.article-aside,.listing-aside,.filters,.skip-link{display:none!important}.shell{width:100%;max-width:none}.article-layout,.home-columns,.listing-layout{display:block}.article-figure img{max-height:280px;object-fit:contain}.prose p{font-size:12pt;line-height:1.65}.story-card{break-inside:avoid}a{color:inherit;text-decoration:underline}}