/* 吃瓜网暖色内容型布局 */
:root{
    --brand:#C85C3A;
    --accent:#D94A32;
    --amber:#E6B85C;
    --ink:#2B2523;
    --text:#332E2B;
    --muted:#766C66;
    --bg:#FAF7F2;
    --soft:#F1EAE2;
    --line:#DFD3C8;
    --white:#FFFDFC;
    --max:1180px;
    --shadow:0 14px 40px rgba(61,42,32,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.72;text-rendering:optimizeLegibility}
body.is-search-open{overflow:hidden}
a{color:inherit;text-decoration-color:rgba(200,92,58,.5);text-underline-offset:4px}
a:hover{color:var(--brand);text-decoration-color:var(--brand)}
img{max-width:100%;height:auto;display:block}
button,input{font:inherit}
button{cursor:pointer}
.shell{width:min(var(--max),calc(100% - 48px));margin-inline:auto}
.skip-link{position:fixed;left:16px;top:12px;z-index:1000;padding:10px 14px;background:var(--ink);color:#fff;transform:translateY(-160%)}
.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;z-index:50;background:rgba(250,247,242,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(223,211,200,.8)}
.header-shell{width:min(1240px,calc(100% - 32px));margin:auto;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:22px;min-height:78px}
.brand-lockup{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.brand-lockup img{width:46px;height:46px;object-fit:contain}
.brand-lockup span{display:grid;line-height:1.15}
.brand-lockup strong{font-size:1.08rem;letter-spacing:.04em}
.brand-lockup small{font-size:.72rem;color:var(--muted);margin-top:5px}
.primary-nav{display:flex;align-items:center;justify-content:center;gap:6px}
.primary-nav a{padding:10px 12px;border-radius:999px;text-decoration:none;font-size:.94rem;color:var(--muted)}
.primary-nav a:hover,.primary-nav a.is-active{background:var(--soft);color:var(--ink)}
.search-open,.menu-toggle{border:1px solid var(--line);background:var(--white);color:var(--ink);padding:10px 14px;border-radius:999px}
.menu-toggle{display:none}
.search-modal[hidden]{display:none!important}
.search-modal{position:fixed;inset:0;z-index:100;background:rgba(43,37,35,.55);display:grid;place-items:start center;padding:12vh 20px 20px;overflow:auto}
.search-panel{width:min(720px,100%);background:var(--white);border-radius:24px;padding:30px;box-shadow:0 30px 80px rgba(0,0,0,.22);position:relative}
.search-panel h2{margin:0 54px 8px 0;font-size:1.6rem}
.search-panel p{color:var(--muted);margin:0 0 22px}
.search-close{position:absolute;right:22px;top:22px;border:0;background:var(--soft);border-radius:999px;padding:8px 12px}
.search-form label{display:block;font-weight:700;margin-bottom:8px}
.search-line{display:grid;grid-template-columns:1fr auto;gap:10px}
.search-line input{width:100%;min-width:0;border:1px solid var(--line);background:#fff;border-radius:14px;padding:13px 14px;outline:none}
.search-line input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,92,58,.12)}
.search-line button{border:0;background:var(--brand);color:#fff;border-radius:14px;padding:0 20px;font-weight:700}
main{min-height:60vh}
.eyebrow{text-transform:none;color:var(--brand);font-weight:800;letter-spacing:.08em;font-size:.79rem;margin:0 0 10px}
.lead{font-size:1.08rem;color:#544a45;max-width:760px}
.home-intro{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;padding-block:72px 64px}
.home-intro h1{font-size:clamp(2.4rem,5vw,5.4rem);line-height:1.03;letter-spacing:-.045em;margin:0 0 22px;max-width:850px;color:var(--ink)}
.intro-visual{margin:0;align-self:stretch;display:flex;flex-direction:column;justify-content:center}
.intro-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:8px 64px 8px 8px;box-shadow:var(--shadow)}
.intro-visual figcaption{font-size:.82rem;color:var(--muted);margin-top:12px}
.domain-strip{margin-top:30px;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px}
.domain-strip span{color:var(--muted);font-size:.86rem}.domain-strip strong{font-size:1.08rem}.domain-strip a{margin-left:auto}
.section-heading{max-width:800px;margin-bottom:32px}.section-heading.compact{margin-bottom:22px}.section-heading h2{font-size:clamp(1.75rem,3vw,2.8rem);line-height:1.2;margin:0 0 10px;color:var(--ink)}.section-heading p{margin:0;color:var(--muted)}
.route-map{padding-block:34px 82px}
.route-list{border-top:1px solid var(--line)}
.route-row{display:grid;grid-template-columns:54px 180px 1fr auto;gap:18px;align-items:center;padding:20px 8px;border-bottom:1px solid var(--line);text-decoration:none}
.route-row>span{font-size:.8rem;color:var(--muted)}.route-row strong{font-size:1.05rem}.route-row p{margin:0;color:var(--muted)}.route-row em{font-style:normal;color:var(--brand);font-weight:700}
.route-row:hover{background:rgba(241,234,226,.55)}
.warm-band{background:var(--soft);border-block:1px solid rgba(223,211,200,.7)}
.split-editorial{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:center;padding-block:74px}
.split-editorial figure{margin:0}.split-editorial img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:26px 8px 26px 8px}
.split-editorial h2{font-size:clamp(1.8rem,3.6vw,3.4rem);line-height:1.13;margin:0 0 18px;color:var(--ink)}.split-editorial p{font-size:1.02rem;color:#5b504a}.text-link{font-weight:800;color:var(--brand)}
.editorial-block{display:grid;grid-template-columns:60px minmax(0,1fr);gap:24px;padding-block:56px;border-bottom:1px solid var(--line);position:relative}
.editorial-block.has-image,.editorial-block:has(.editorial-image){grid-template-columns:60px minmax(0,1fr) minmax(260px,.68fr);align-items:center}
.number-mark{font-size:.8rem;color:var(--brand);font-weight:800;padding-top:7px}.editorial-copy h2{font-size:clamp(1.45rem,2.4vw,2.2rem);margin:0 0 12px;color:var(--ink)}.editorial-copy p{max-width:760px;margin:0 0 12px;color:#5f544f}.editorial-image{width:100%;aspect-ratio:14/9;object-fit:cover;border-radius:18px;box-shadow:var(--shadow)}
.dark-band{background:var(--ink);color:#F7F0EA}.final-path{display:grid;grid-template-columns:1fr 1fr;gap:70px;padding-block:70px}.final-path h2{font-size:clamp(1.8rem,3vw,3rem);line-height:1.17;margin:0 0 16px;color:#fff}.final-path p{color:#D7C7BE}.final-links{display:grid;border-top:1px solid rgba(255,255,255,.18)}.final-links a{display:flex;justify-content:space-between;gap:18px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.18);text-decoration:none;font-weight:800}.final-links span{font-weight:400;color:#C9B9B0;font-size:.88rem;text-align:right}
.breadcrumbs{padding-top:26px}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0;color:var(--muted);font-size:.86rem}.breadcrumbs li+li:before{content:"/";margin-right:8px;color:#b5a69d}.breadcrumbs a{text-decoration:none}
.page-head{display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center;padding-block:44px 58px}.page-head h1{font-size:clamp(2.2rem,4.5vw,4.5rem);line-height:1.06;letter-spacing:-.035em;margin:0 0 20px;color:var(--ink)}.page-head>img,.device-visual{width:100%}.page-head>img{aspect-ratio:3/2;object-fit:cover;border-radius:34px 8px 34px 8px;box-shadow:var(--shadow)}
.community-intro-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:1px;background:var(--line);border:1px solid var(--line);margin-bottom:70px}.community-intro-grid article{background:var(--white);padding:28px}.community-intro-grid h2{font-size:1.18rem;margin:0 0 10px}.community-intro-grid p{color:var(--muted);margin:0}
.list-section{padding-bottom:78px}.stack-list{display:grid;gap:18px}.stack-item{background:var(--white);border:1px solid var(--line);padding:28px;border-radius:18px}.stack-kicker,.guide-category{color:var(--brand);font-weight:800;font-size:.78rem;letter-spacing:.06em}.stack-item h3{font-size:1.35rem;margin:5px 0 10px}.stack-item p{margin:0 0 14px;color:#5f544f}.stack-item ol{margin:0;padding-left:20px;color:var(--muted)}
.pagination{display:flex;justify-content:center;align-items:center;gap:18px;margin-top:32px}.pagination a{display:inline-block;padding:10px 16px;border:1px solid var(--line);background:var(--white);border-radius:999px;text-decoration:none}.pagination span{color:var(--muted);font-size:.9rem}
.compact-band{padding-block:38px}.cross-links{display:flex;align-items:center;gap:12px 22px;flex-wrap:wrap}.cross-links h2{font-size:1.25rem;margin:0 auto 0 0}.cross-links a{font-weight:700}
.device-visual{position:relative;min-height:430px}.device-visual img:first-child{width:72%;margin-left:auto;border-radius:28px;box-shadow:var(--shadow)}.device-visual img:last-child{width:44%;position:absolute;left:0;bottom:-14px;border:8px solid var(--bg);border-radius:28px;box-shadow:var(--shadow)}
.mobile-basics{display:grid;grid-template-columns:1fr 1fr;gap:52px;padding-block:54px}.mobile-basics h2{font-size:1.5rem;margin:0 0 12px}.mobile-basics p{margin:0;color:var(--muted)}
.app-notes{padding-block:72px}.app-note-grid{columns:3 300px;column-gap:18px}.app-note-grid article{break-inside:avoid;background:var(--white);border:1px solid var(--line);border-radius:16px;padding:22px;margin:0 0 18px}.app-note-grid article>span{font-size:.75rem;color:var(--brand);font-weight:800}.app-note-grid h3{margin:5px 0 10px;font-size:1.14rem}.app-note-grid p{margin:0 0 10px;color:#5f544f}.app-note-grid .check-note{font-size:.9rem;color:var(--muted);padding-top:10px;border-top:1px dashed var(--line)}
.related-strip{display:flex;align-items:center;flex-wrap:wrap;gap:12px 24px;padding-block:42px}.related-strip h2{font-size:1.3rem;margin:0 auto 0 0}.related-strip a{font-weight:800;color:var(--brand)}
.status-legend{padding-bottom:62px}.status-legend h2{font-size:clamp(1.7rem,3vw,2.8rem);max-width:820px}.status-legend dl{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.status-legend dl div{background:var(--white);padding:24px}.status-legend dt{font-weight:800;color:var(--brand);margin-bottom:6px}.status-legend dd{margin:0;color:var(--muted)}
.source-flow{padding-block:58px}.source-flow h2{font-size:2rem;margin:0 0 22px}.source-flow ol{display:grid;gap:14px;margin:0;padding-left:24px}.source-flow li{padding-left:8px}.report-cases{padding-block:72px}.report-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.report-list article{background:var(--white);border:1px solid var(--line);padding:24px;border-radius:18px}.report-list span{font-size:.75rem;font-weight:800;color:var(--brand)}.report-list h3{font-size:1.17rem;margin:7px 0}.report-list p{margin:0;color:var(--muted)}
.guide-index{padding:0 0 42px}.guide-index h2{font-size:1.25rem}.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}.tag-cloud a{border:1px solid var(--line);background:var(--white);border-radius:999px;padding:9px 14px;text-decoration:none}.guide-list{padding-bottom:74px}.guide-entry{display:grid;grid-template-columns:70px 1fr;gap:20px;padding:30px 0;border-top:1px solid var(--line)}.guide-number{font-size:.75rem;color:var(--muted);font-variant-numeric:tabular-nums}.guide-entry h3{font-size:1.35rem;margin:5px 0 10px}.guide-entry p{max-width:850px;color:#5d524d}.guide-entry ol{max-width:850px;padding-left:22px}.guide-note{background:var(--soft);padding:14px 16px;border-left:3px solid var(--amber)}
.faq-list{padding-bottom:70px;max-width:960px}.faq-item{border-top:1px solid var(--line)}.faq-item:last-child{border-bottom:1px solid var(--line)}.faq-item h2{margin:0;font-size:1.1rem}.faq-toggle{width:100%;display:flex;justify-content:space-between;gap:18px;text-align:left;border:0;background:transparent;padding:20px 0;font-weight:800;color:var(--ink)}.faq-toggle span{color:var(--brand);font-size:1.4rem;transition:transform .2s}.faq-toggle[aria-expanded=true] span{transform:rotate(45deg)}.faq-answer{padding:0 44px 20px 0;color:var(--muted)}.faq-answer[hidden]{display:none!important}.faq-answer p{margin:0}
.about-timeline{padding-bottom:70px}.about-timeline article{display:grid;grid-template-columns:70px 1fr;gap:24px;border-top:1px solid var(--line);padding:28px 0}.about-timeline span{font-size:.75rem;color:var(--brand);font-weight:800}.about-timeline h2{margin:0 0 8px;font-size:1.4rem}.about-timeline p{margin:0;max-width:820px;color:var(--muted)}.about-principles{display:grid;grid-template-columns:1fr 1fr;gap:54px;padding-block:58px}.about-principles h2{font-size:1.5rem;margin:0 0 10px}.about-principles p{margin:0;color:#655951}
.safety-checks{padding-bottom:72px}.safety-checks>article{display:grid;grid-template-columns:64px 1fr;gap:22px;align-items:start;padding:22px 0;border-top:1px solid var(--line)}.safety-checks>article>span{color:var(--brand);font-size:.78rem;font-weight:800}.safety-checks h3{margin:0 0 7px;font-size:1.2rem}.safety-checks p{margin:0;max-width:850px;color:var(--muted)}.warning-panel{padding-block:58px}.warning-panel h2{font-size:2rem;margin:0 0 18px}.warning-panel li{margin:8px 0;color:#DED1CA}.warning-panel a{color:var(--amber);font-weight:800}
.policy-sections{padding-bottom:68px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.policy-sections article{background:var(--white);border:1px solid var(--line);padding:26px;border-radius:18px}.policy-sections h2{font-size:1.3rem;margin:0 0 10px}.policy-sections p{margin:0;color:var(--muted)}.privacy-note{padding-block:56px}.privacy-note h2{font-size:1.8rem;margin:0 0 12px}.privacy-note p{max-width:900px;color:#655951}.privacy-note a{font-weight:800;color:var(--brand)}
.contact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;padding-bottom:70px}.contact-grid article{background:var(--white);border:1px solid var(--line);padding:24px;border-radius:18px}.contact-grid span{font-size:.76rem;color:var(--brand);font-weight:800}.contact-grid h2{font-size:1.22rem;margin:6px 0 10px}.contact-grid p{margin:0;color:var(--muted)}.feedback-example{padding-block:56px}.feedback-example h2{font-size:1.8rem}.feedback-example dl{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.feedback-example dl div{background:rgba(255,253,252,.65);padding:18px;border-radius:14px}.feedback-example dt{font-weight:800}.feedback-example dd{margin:4px 0 0;color:var(--muted)}
.search-page-head{padding-block:48px 32px}.search-page-head h1{font-size:clamp(2rem,4vw,4rem);margin:0 0 12px}.search-page-head>p{color:var(--muted)}.search-form.large{max-width:820px;margin-top:26px}.search-results{padding-bottom:72px}.empty-state{background:var(--soft);padding:42px;border-radius:22px}.empty-state img{width:min(480px,100%);border-radius:16px;margin-bottom:20px}.empty-state h2{font-size:1.7rem}.empty-state div{display:flex;gap:14px;flex-wrap:wrap}.result-summary{color:var(--muted);margin:8px 0 18px}.result-list{border-top:1px solid var(--line)}.result-list article{padding:22px 0;border-bottom:1px solid var(--line)}.result-list article>span{font-size:.76rem;color:var(--brand);font-weight:800}.result-list h2{font-size:1.2rem;margin:5px 0 7px}.result-list h2 a{text-decoration:none}.result-list p{margin:0;color:var(--muted);max-width:860px}
.not-found{padding-block:110px 130px}.not-found h1{font-size:clamp(2.4rem,6vw,5.4rem);margin:0 0 18px}.not-found>p{max-width:720px;color:var(--muted)}.not-found-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.not-found-links a{padding:11px 16px;border:1px solid var(--line);border-radius:999px;background:var(--white);text-decoration:none}
.site-footer{background:#211d1b;color:#D7C9C2;padding:60px 0 22px}.footer-grid{width:min(var(--max),calc(100% - 48px));margin:auto;display:grid;grid-template-columns:1.3fr .85fr .85fr;gap:54px}.footer-grid h2{font-size:1rem;color:#fff;margin:0 0 14px}.footer-grid p{margin:0;max-width:460px;color:#BFAFA7}.footer-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}.footer-grid a{color:#D7C9C2;text-decoration:none}.footer-grid a:hover{color:#fff}.footer-bottom{width:min(var(--max),calc(100% - 48px));margin:42px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:space-between;gap:18px;font-size:.82rem;color:#A79790}.footer-bottom p{margin:0}.back-top{border:1px solid rgba(255,255,255,.25);background:transparent;color:#fff;border-radius:999px;padding:8px 12px}.back-top[hidden]{display:none!important}
@media (max-width:1024px){
    .header-shell{grid-template-columns:auto auto 1fr}.menu-toggle{display:inline-block;justify-self:end}.primary-nav{position:absolute;left:16px;right:16px;top:70px;background:var(--white);border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow);display:none;flex-direction:column;align-items:stretch}.primary-nav.is-open{display:flex}.primary-nav a{border-radius:10px}.search-open{justify-self:end}.home-intro,.page-head{grid-template-columns:1fr;gap:36px}.intro-visual{max-width:760px}.home-intro h1,.page-head h1{max-width:900px}.split-editorial{gap:38px}.route-row{grid-template-columns:48px 160px 1fr}.route-row em{display:none}.community-intro-grid{grid-template-columns:1fr 1fr}.community-intro-grid article:first-child{grid-column:1/-1}.app-note-grid{columns:2 280px}.contact-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
    .shell{width:min(100% - 32px,var(--max))}.header-shell{width:calc(100% - 24px);min-height:68px;gap:9px}.brand-lockup small{display:none}.brand-lockup img{width:38px;height:38px}.search-open{padding:8px 10px;font-size:.86rem}.menu-toggle{padding:8px 10px;font-size:.86rem}.home-intro{padding-block:48px}.domain-strip a{margin-left:0;width:100%}.route-row{grid-template-columns:40px 1fr;gap:6px 10px}.route-row p{grid-column:2}.split-editorial{grid-template-columns:1fr;padding-block:52px}.editorial-block,.editorial-block:has(.editorial-image){grid-template-columns:44px 1fr}.editorial-image{grid-column:2}.final-path{grid-template-columns:1fr;gap:34px}.community-intro-grid{grid-template-columns:1fr}.community-intro-grid article:first-child{grid-column:auto}.status-legend dl{grid-template-columns:1fr 1fr}.report-list{grid-template-columns:1fr}.mobile-basics,.about-principles{grid-template-columns:1fr;gap:30px}.app-note-grid{columns:1}.policy-sections{grid-template-columns:1fr}.contact-grid{grid-template-columns:1fr}.feedback-example dl{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:36px}.footer-grid section:first-child{grid-column:1/-1}
}
@media (max-width:600px){
    .brand-lockup strong{font-size:.95rem}.home-intro h1,.page-head h1{letter-spacing:-.025em}.home-intro{gap:26px}.intro-visual img,.page-head>img{border-radius:16px}.route-map{padding-bottom:56px}.route-row{padding:18px 4px}.editorial-block{padding-block:38px}.editorial-copy h2{font-size:1.35rem}.status-legend dl{grid-template-columns:1fr}.guide-entry{grid-template-columns:1fr;gap:5px}.device-visual{min-height:340px}.device-visual img:first-child{width:82%}.device-visual img:last-child{width:48%}.cross-links,.related-strip{align-items:flex-start;flex-direction:column}.cross-links h2,.related-strip h2{margin-bottom:4px}.footer-grid{grid-template-columns:1fr}.footer-grid section:first-child{grid-column:auto}.footer-bottom{align-items:flex-start;flex-direction:column}.search-panel{padding:24px 18px}.search-line{grid-template-columns:1fr}.search-line button{padding:12px 16px}.not-found{padding-block:78px 96px}
}
@media (max-width:375px){
    .header-shell{grid-template-columns:auto 1fr auto}.brand-lockup span{display:none}.shell{width:calc(100% - 24px)}.home-intro{padding-top:38px}.home-intro h1{font-size:2.28rem}.page-head h1{font-size:2.15rem}.search-open{font-size:.8rem}.route-row strong{font-size:.98rem}.stack-item,.app-note-grid article,.policy-sections article,.contact-grid article{padding:18px}.final-path{padding-block:50px}.footer-grid,.footer-bottom{width:calc(100% - 28px)}
}