/* 51吃瓜 - warm editorial interface */
:root{--red:#B93A32;--amber:#D98A3A;--ink:#252322;--paper:#FAF8F5;--sand:#F2EDE7;--text:#3B3836;--muted:#77716D;--accent:#E05A3F;--line:#DDD4CB;--white:#fff;--radius:18px;--shadow:0 18px 46px rgba(65,46,36,.09);--wrap:min(1180px,calc(100% - 40px))}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}.wrap{width:var(--wrap);margin-inline:auto}.skip-link{position:fixed;left:12px;top:12px;z-index:9999;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px;transform:translateY(-180%)}.skip-link:focus{transform:none}.site-shell{width:var(--wrap);margin:18px auto 0;border:1px solid rgba(37,35,34,.09);border-radius:22px;background:rgba(250,248,245,.94);backdrop-filter:blur(14px);position:sticky;top:10px;z-index:50;box-shadow:0 8px 30px rgba(65,46,36,.05)}.masthead{display:flex;align-items:center;justify-content:space-between;padding:14px 18px}.brand{display:flex;align-items:center;gap:12px;min-width:210px}.brand img{width:46px;height:46px;object-fit:contain}.brand span{display:flex;flex-direction:column}.brand strong{font-size:1.2rem;letter-spacing:.04em;color:var(--ink)}.brand small{color:var(--muted);font-size:.78rem}.primary-nav{display:flex;gap:6px;padding:0 12px 12px;justify-content:flex-end}.primary-nav a{padding:8px 13px;border-radius:999px;color:var(--muted);font-weight:650;font-size:.92rem}.primary-nav a:hover,.primary-nav a[aria-current="page"]{background:var(--sand);color:var(--red)}.nav-toggle{display:none;border:0;background:transparent;padding:10px}.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:4px;border-radius:2px}.kicker,.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--red);font-size:.76rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.kicker:before{content:"";width:22px;height:2px;background:var(--amber)}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--ink);line-height:1.16;letter-spacing:-.03em}h1{font-size:clamp(2.3rem,6vw,5.7rem);margin-bottom:22px}h2{font-size:clamp(1.55rem,3.2vw,2.75rem);margin-bottom:14px}h3{font-size:1.22rem}.lead{font-size:clamp(1.05rem,1.8vw,1.28rem);color:#514a46;max-width:720px}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;padding:78px 0 58px}.hero-copy{padding-right:22px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:999px;font-weight:800;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s}.button:hover{transform:translateY(-2px)}.button.primary{background:var(--red);color:#fff;box-shadow:0 12px 24px rgba(185,58,50,.18)}.button.ghost{border-color:var(--line);background:#fff}.quick-facts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:30px}.quick-facts div{padding:16px 18px;border-left:3px solid var(--amber);background:rgba(242,237,231,.66)}.quick-facts dt{font-size:.76rem;color:var(--muted);font-weight:700}.quick-facts dd{margin:2px 0 0;color:var(--ink);font-weight:750}.hero-visual{position:relative}.hero-visual>img{width:100%;aspect-ratio:1/0.82;object-fit:cover;border-radius:34px 10px 34px 10px;box-shadow:var(--shadow)}.hero-note{position:absolute;right:-18px;bottom:22px;width:min(320px,80%);background:rgba(37,35,34,.93);color:#fff;padding:18px 20px;border-radius:16px}.hero-note strong{display:block;margin-bottom:4px}.hero-note span{font-size:.9rem;color:#e8e1dc}.ticker{border-block:1px solid var(--line);background:#fff}.ticker-track{display:flex;align-items:center;gap:28px;min-height:58px;overflow:auto;white-space:nowrap}.ticker-track>span{background:var(--red);color:#fff;font-weight:800;padding:5px 10px;border-radius:6px}.ticker-track a{color:var(--muted);font-size:.92rem}.ticker-track a:hover{color:var(--red)}.section-block{padding:78px 0}.section-head{margin-bottom:32px}.section-head.split{display:grid;grid-template-columns:1fr .72fr;gap:40px;align-items:end}.section-head.split p{color:var(--muted);margin-bottom:6px}.featured-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:18px}.story-card{background:#fff;border:1px solid rgba(37,35,34,.08);border-radius:18px;overflow:hidden;min-width:0;box-shadow:0 10px 32px rgba(65,46,36,.045);transition:transform .2s ease,box-shadow .2s}.story-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.story-media{display:block;overflow:hidden;background:var(--sand)}.story-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}.story-card:hover .story-media img{transform:scale(1.025)}.story-body{padding:20px}.story-body h3{margin:8px 0 10px}.story-body h3 a:hover{color:var(--red)}.story-body p{color:var(--muted);font-size:.93rem;line-height:1.66}.tag-row{display:flex;flex-wrap:wrap;gap:7px}.tag-row span{font-size:.75rem;background:var(--sand);color:#695f59;padding:4px 8px;border-radius:999px}.story-card--lead{grid-row:span 2}.story-card--lead .story-media img{aspect-ratio:4/3}.story-card--lead h3{font-size:1.65rem}.band{background:var(--sand);padding:78px 0;margin:20px 0}.rail-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:70px;align-items:start}.rail-intro{position:sticky;top:150px}.text-link{font-weight:800;color:var(--red)}.text-link:hover{text-decoration:underline}.signal-list{margin:0;padding:0;list-style:none;border-top:1px solid #d8cec5}.signal-list li{display:grid;grid-template-columns:70px 1fr;gap:20px;padding:24px 0;border-bottom:1px solid #d8cec5}.signal-list b{font-size:1.5rem;color:var(--amber)}.signal-list strong{display:block;color:var(--ink);margin-bottom:3px}.compact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.story-card--compact .story-body{padding:16px}.story-card--compact .story-body p{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.center-action{text-align:center;margin-top:28px}.service-strip{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding:0 0 92px}.service-strip article{display:grid;grid-template-columns:150px 1fr;gap:20px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;align-items:center}.service-strip img{width:150px;height:150px;object-fit:cover;border-radius:14px}.service-strip h2{font-size:1.4rem;margin:5px 0 8px}.service-strip p{color:var(--muted);font-size:.92rem}.footer{background:var(--ink);color:#cfc7c2;padding:56px max(20px,calc((100% - 1180px)/2)) 22px}.footer-grid{display:grid;grid-template-columns:1.5fr .7fr .7fr;gap:55px}.footer-brand{color:#fff;font-size:1.4rem;font-weight:850}.footer h2{font-size:1rem;color:#fff}.footer a{display:block;margin:8px 0;color:#cfc7c2}.footer a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:18px;display:flex;justify-content:space-between;font-size:.84rem;color:#988f89}.page-main{padding:52px 0 90px}.page-hero{padding:58px 0 45px;max-width:900px}.page-hero h1{font-size:clamp(2.4rem,5vw,4.8rem)}.filter-bar{display:flex;gap:8px;overflow:auto;padding:0 0 22px;border-bottom:1px solid var(--line)}.filter-chip{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:999px;padding:8px 13px;white-space:nowrap;cursor:pointer}.filter-chip:hover,.filter-chip.is-active{background:var(--red);border-color:var(--red);color:#fff}.article-index{display:grid;gap:14px;padding-top:28px}.story-card--row{display:grid;grid-template-columns:240px 1fr}.story-card--row .story-media img{height:100%;aspect-ratio:auto;min-height:190px}.story-card--row .story-body{padding:24px}.story-card--row h3{font-size:1.4rem}.notice{padding:14px 18px;background:#fff;border-left:3px solid var(--amber)}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:54px;padding:52px 0 90px}.breadcrumbs{font-size:.85rem;color:var(--muted);display:flex;gap:9px;flex-wrap:wrap;margin:10px 0 34px}.breadcrumbs a:hover{color:var(--red)}.article-header h1{font-size:clamp(2.3rem,5vw,4.7rem);max-width:900px}.article-image{margin:34px 0}.article-image img{width:100%;border-radius:22px;aspect-ratio:16/8.7;object-fit:cover}.prose{font-size:1.06rem}.prose p{margin:0 0 1.35em}.prose h2{margin-top:2.1em}.prose ol,.prose ul{padding-left:1.25em}.prose li{margin-bottom:.75em}.article-aside{padding-top:102px}.aside-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;margin-bottom:18px}.aside-box h2{font-size:1.35rem}.aside-box>a{display:block;padding:14px 0;border-top:1px solid var(--line)}.aside-box>a strong{display:block;color:var(--ink);line-height:1.35}.aside-box>a span{display:block;font-size:.84rem;color:var(--muted);margin-top:5px}.aside-box.warm{background:var(--sand)}.app-hero{display:grid;grid-template-columns:1fr .75fr;align-items:center;gap:40px;max-width:none}.app-hero img{border-radius:24px}.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding-bottom:50px}.check-grid article{background:#fff;border:1px solid var(--line);padding:24px;border-radius:18px}.check-grid b{font-size:2rem;color:var(--amber)}.check-grid h2{font-size:1.35rem}.two-col{display:grid;grid-template-columns:1fr .85fr;gap:54px;align-items:center}.two-col img{border-radius:22px}.faq-list{display:grid;gap:10px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 18px}.faq-list summary{padding:18px 0;font-weight:800;color:var(--ink);cursor:pointer}.faq-list p{padding-bottom:16px;margin:0;color:var(--muted)}.faq-list.big details{padding-inline:22px}.faq-list.big summary{font-size:1.08rem}.submission-flow{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.submission-flow article{padding:24px;background:#fff;border:1px solid var(--line);border-radius:18px}.submission-flow span{font-size:.8rem;color:var(--red);font-weight:800}.submission-flow h2{font-size:1.45rem;margin-top:8px}.band.inset{border-radius:26px;padding:48px;margin:54px 0;width:100%}.checklist{list-style:none;padding:0;margin:20px 0}.checklist li{position:relative;padding:9px 0 9px 30px;border-bottom:1px solid #d8cec5}.checklist li:before{content:"✓";position:absolute;left:0;color:var(--red);font-weight:900}.notice-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}.about-mosaic{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}.about-mosaic article{background:#fff;border:1px solid var(--line);padding:24px;border-radius:20px}.about-mosaic img{border-radius:14px;margin-bottom:20px}.link-panels{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.link-panels a{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}.link-panels strong{display:block;color:var(--ink);font-size:1.1rem}.link-panels span{display:block;color:var(--muted);font-size:.9rem;margin-top:5px}.narrow{max-width:860px}.legal-copy{background:#fff;border:1px solid var(--line);padding:34px;border-radius:20px}.error-main{min-height:65vh;display:grid;grid-template-columns:.7fr 1.3fr;align-items:center;gap:40px}.error-code{font-size:clamp(7rem,18vw,16rem);line-height:.8;font-weight:900;color:var(--sand);letter-spacing:-.08em}.error-main h1{font-size:clamp(2.3rem,5vw,4.5rem)}[hidden]{display:none!important}
@media (max-width:1020px){.hero-grid,.app-hero,.article-layout{grid-template-columns:1fr}.hero-copy{padding-right:0}.hero-visual{max-width:760px}.hero-note{right:16px}.featured-grid{grid-template-columns:1fr 1fr}.story-card--lead{grid-row:auto}.compact-grid{grid-template-columns:repeat(2,1fr)}.article-aside{padding-top:0;display:grid;grid-template-columns:1fr 1fr;gap:16px}.check-grid{grid-template-columns:1fr}.article-layout{gap:10px}.rail-layout{gap:35px}.rail-intro{position:static}.service-strip{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}}
@media (max-width:760px){:root{--wrap:min(100% - 28px,1180px)}.site-shell{margin-top:8px;top:6px}.masthead{padding:11px 12px}.brand img{width:40px;height:40px}.brand small{display:none}.nav-toggle{display:block}.primary-nav{display:none;padding:8px 12px 14px;flex-direction:column;align-items:stretch}.primary-nav.is-open{display:flex}.primary-nav a{padding:11px 12px}.hero-grid{padding:48px 0 34px;gap:28px}.hero-grid h1{font-size:clamp(2.45rem,13vw,4rem)}.quick-facts{grid-template-columns:1fr}.ticker-track{gap:18px}.section-block{padding:58px 0}.section-head.split,.rail-layout,.two-col,.about-mosaic,.error-main{grid-template-columns:1fr}.featured-grid,.compact-grid,.submission-flow,.link-panels{grid-template-columns:1fr}.story-card--lead h3{font-size:1.3rem}.band{padding:58px 0}.signal-list li{grid-template-columns:48px 1fr}.service-strip article{grid-template-columns:100px 1fr}.service-strip img{width:100px;height:100px}.footer-grid{grid-template-columns:1fr;gap:24px}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{flex-direction:column;gap:5px}.story-card--row{grid-template-columns:115px 1fr}.story-card--row .story-media img{min-height:100%;width:100%;object-fit:cover}.story-card--row .story-body{padding:14px}.story-card--row .story-body p{display:none}.story-card--row h3{font-size:1.05rem}.article-header h1{font-size:clamp(2.2rem,11vw,3.6rem)}.article-aside{grid-template-columns:1fr}.band.inset{padding:28px 20px;margin:38px 0}.legal-copy{padding:22px}.error-main{padding:50px 0}.error-code{font-size:8rem}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px}

/* Detailed component refinements */
.article-index>div:nth-child(1) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(2) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(3) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(4) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(5) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(6) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(7) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(8) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(9) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(10) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(11) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(12) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(13) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(14) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(15) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(16) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(17) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(18) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(19) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(20) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(21) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(22) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(23) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(24) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(25) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(26) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(27) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(28) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(29) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(30) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(31) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(32) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(33) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(34) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(35) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(36) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(37) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(38) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(39) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(40) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(41) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(42) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(43) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(44) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(45) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(46) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(47) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(48) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(49) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(50) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(51) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(52) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(53) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(54) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(55) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(56) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(57) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(58) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(59) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(60) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(61) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(62) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(63) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(64) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(65) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(66) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(67) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(68) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(69) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(70) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(71) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(72) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(73) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(74) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(75) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(76) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(77) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(78) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(79) .story-card--row{scroll-margin-top:120px}
.article-index>div:nth-child(80) .story-card--row{scroll-margin-top:120px}
@media print{.site-shell,.footer,.hero-actions,.filter-bar,.article-aside{display:none!important}body{background:#fff;color:#000}.wrap{width:100%}.article-layout{display:block;padding:0}.article-image{max-width:680px}.prose{font-size:11pt}.article-header h1{font-size:28pt}}
@media (min-width:1400px){.site-shell{max-width:1320px}.hero-grid{gap:76px}.hero-copy{padding-left:32px}.featured-grid{gap:24px}}