/*
   蘑菇视频内容站样式：低饱和菌菇紫 + 暖米白。
   视觉目标是阅读与内容层次，不使用外链字体、框架或图标库。
*/
:root{
    --ink:#302C33;--muted:#726B76;--deep:#25212A;--paper:#F8F5F3;--soft:#EEE8EF;
    --brand:#7C5C8E;--brand-soft:#B89ABF;--accent:#D58A45;--white:#fff;
    --line:rgba(48,44,51,.14);--line-strong:rgba(48,44,51,.24);--shadow:0 20px 55px rgba(37,33,42,.09);
    --radius:24px;--radius-sm:15px;--shell:1180px;--narrow:820px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.75;text-rendering:optimizeLegibility}body.modal-open{overflow:hidden}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.shell{width:min(var(--shell),calc(100% - 48px));margin-inline:auto}.shell-wide{width:min(1440px,calc(100% - 28px));margin-inline:auto}.narrow{max-width:var(--narrow)}.site-main{overflow:hidden}.skip-link{position:fixed;left:16px;top:-60px;z-index:999;background:var(--deep);color:#fff;padding:10px 14px;border-radius:8px}.skip-link:focus{top:16px}.eyebrow{margin:0 0 10px;color:var(--brand);font-size:.78rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase}.lead{font-size:clamp(1.06rem,1.8vw,1.28rem);line-height:1.78;color:#4e4651}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border:1px solid var(--brand);border-radius:999px;background:var(--brand);color:#fff;font-weight:760;transition:.2s transform,.2s background,.2s color}.button:hover{transform:translateY(-1px);background:#694e79}.button-ghost{background:transparent;color:var(--brand)}.button-ghost:hover{background:var(--soft)}.text-link{color:var(--brand);font-weight:760}.text-link:hover{text-decoration:underline;text-underline-offset:4px}.action-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.site-header{position:sticky;top:0;z-index:100;background:rgba(248,245,243,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.header-inner{min-height:78px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:26px}.brand-lockup{display:flex;align-items:center;gap:11px;min-width:205px}.brand-lockup img{width:42px;height:42px;object-fit:contain;border-radius:12px}.brand-lockup span{display:grid;line-height:1.2}.brand-lockup strong{font-size:1rem}.brand-lockup small{margin-top:4px;color:var(--muted);font-size:.72rem}.primary-nav{justify-self:center;display:flex;align-items:center;gap:26px}.primary-nav a{font-size:.92rem;font-weight:690;color:#524b55;position:relative}.primary-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-8px;height:2px;background:var(--brand);transition:right .2s}.primary-nav a:hover:after{right:0}.search-trigger,.menu-toggle{border:1px solid var(--line-strong);background:transparent;border-radius:999px;padding:9px 15px;color:var(--ink);font-weight:700}.menu-toggle{display:none}.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:300;display:grid;place-items:center;padding:24px}.search-backdrop{position:absolute;inset:0;background:rgba(37,33,42,.62);backdrop-filter:blur(6px)}.search-dialog{position:relative;z-index:1;width:min(680px,100%);background:var(--paper);border-radius:28px;padding:38px;box-shadow:0 30px 100px rgba(0,0,0,.28)}.search-dialog h2{font-size:clamp(1.7rem,4vw,2.5rem);line-height:1.15;margin:0 0 12px}.search-dialog>p:not(.eyebrow){color:var(--muted)}.modal-close{position:absolute;right:18px;top:16px;width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:var(--white);font-size:1.55rem;line-height:1}.search-form label{display:block;font-size:.83rem;font-weight:750;margin-bottom:8px}.search-line{display:flex;gap:8px}.search-line input{flex:1;min-width:0;border:1px solid var(--line-strong);background:#fff;border-radius:14px;padding:13px 14px;color:var(--ink);outline:none}.search-line input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(124,92,142,.12)}.search-line button{border:0;border-radius:14px;background:var(--brand);color:#fff;font-weight:760;padding:0 22px}.back-top{position:fixed;right:20px;bottom:20px;z-index:90;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--paper);box-shadow:var(--shadow);opacity:0;pointer-events:none;transform:translateY(10px);transition:.2s}.back-top.is-visible{opacity:1;pointer-events:auto;transform:none}
.home-cover{position:relative;min-height:680px;margin-top:14px;border-radius:34px;overflow:hidden;background:var(--deep)}.cover-media{position:absolute;inset:0}.cover-media:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(37,33,42,.92) 0%,rgba(37,33,42,.68) 46%,rgba(37,33,42,.20) 78%,rgba(37,33,42,.08) 100%)}.cover-media img{width:100%;height:100%;object-fit:cover}.cover-copy{position:relative;z-index:2;padding-top:150px;padding-bottom:90px;color:#fff}.cover-copy .eyebrow{color:#decfe3}.cover-copy h1{max-width:760px;font-size:clamp(3rem,7vw,6.3rem);line-height:.99;letter-spacing:-.055em;margin:0 0 26px}.cover-copy .lead{max-width:770px;color:rgba(255,255,255,.83)}.cover-links{display:flex;align-items:center;gap:22px;margin-top:32px}.cover-links .text-link{color:#fff}.intro-strip{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:90px;padding-block:104px;border-bottom:1px solid var(--line)}.intro-strip h2,.section-head h2,.topic-stage-head h2{font-size:clamp(2rem,4vw,3.4rem);line-height:1.12;letter-spacing:-.035em;margin:0}.intro-strip>p{margin:30px 0 0;font-size:1.12rem;color:var(--muted)}.category-index{padding-block:100px}.section-head{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(260px,.6fr);gap:48px;align-items:end;margin-bottom:46px}.section-head>p{color:var(--muted);margin:0}.index-list{border-top:1px solid var(--line-strong)}.index-row{display:grid;grid-template-columns:72px 1fr 34px;align-items:center;gap:22px;padding:25px 0;border-bottom:1px solid var(--line);transition:.2s padding,.2s color}.index-row:hover{padding-left:12px;color:var(--brand)}.index-number{font-variant-numeric:tabular-nums;color:var(--brand-soft);font-weight:850}.index-row>span:nth-child(2){display:grid;gap:4px}.index-row strong{font-size:1.3rem}.index-row small{color:var(--muted);font-size:.91rem;max-width:820px}.featured-split{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:70px;align-items:center;padding-block:90px}.feature-photo{border-radius:30px;overflow:hidden;min-height:620px}.feature-photo img{width:100%;height:100%;object-fit:cover}.feature-content h2{font-size:clamp(2.1rem,4vw,3.6rem);line-height:1.08;letter-spacing:-.045em;margin:0 0 22px}.feature-content>p:not(.eyebrow){color:var(--muted);font-size:1.04rem}.compact-links{margin-top:34px;border-top:1px solid var(--line)}.compact-links a{display:grid;gap:4px;padding:17px 0;border-bottom:1px solid var(--line)}.compact-links a:hover strong{color:var(--brand)}.compact-links span{font-size:.86rem;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.soft-band{background:var(--soft);margin-block:70px;padding-block:110px}.band-layout{display:grid;grid-template-columns:minmax(300px,.82fr) minmax(0,1.18fr);gap:96px}.band-title{position:sticky;top:120px;align-self:start}.band-title h2{font-size:clamp(2rem,4.5vw,3.7rem);line-height:1.08;letter-spacing:-.04em;margin:0 0 24px}.band-title>p:not(.eyebrow){color:var(--muted)}.band-list{display:grid}.band-list a{padding:26px 0;border-bottom:1px solid rgba(48,44,51,.18);display:grid;gap:8px}.band-list span{font-size:1.3rem;font-weight:780}.band-list small{font-size:.9rem;color:var(--muted)}.topic-stage{padding-block:100px}.topic-stage-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:40px}.topic-stage-head h2{max-width:790px}.topic-mosaic{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:230px;gap:16px}.topic-tile{position:relative;border-radius:22px;overflow:hidden;background:var(--deep);color:#fff;min-width:0}.topic-tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.72;transition:.3s transform,.3s opacity}.topic-tile:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(37,33,42,.9),rgba(37,33,42,.05) 70%)}.topic-tile>span{position:absolute;z-index:2;left:22px;right:22px;bottom:20px;display:grid;gap:5px}.topic-tile strong{font-size:1.22rem}.topic-tile small{color:rgba(255,255,255,.78);line-height:1.45}.topic-tile:hover img{transform:scale(1.035);opacity:.84}.tile-1{grid-column:span 7;grid-row:span 2}.tile-2{grid-column:span 5}.tile-3{grid-column:span 5}.tile-4{grid-column:span 6}.tile-5{grid-column:span 6}.editorial-columns{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr);gap:70px;padding-block:110px;border-top:1px solid var(--line)}.editorial-main h2{font-size:clamp(2.2rem,4.4vw,3.8rem);line-height:1.06;margin:0 0 22px;letter-spacing:-.04em}.editorial-main>p:not(.eyebrow){color:var(--muted);max-width:770px}.editorial-main img{margin-top:34px;border-radius:28px;aspect-ratio:16/8.8;object-fit:cover}.editorial-side{border-top:1px solid var(--line);align-self:center}.editorial-side a{display:grid;gap:8px;padding:26px 0;border-bottom:1px solid var(--line)}.editorial-side strong{font-size:1.22rem}.editorial-side span{color:var(--muted);font-size:.92rem}.dark-band{background:var(--deep);color:#fff;padding-block:112px}.brand-bridge{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:90px;align-items:center}.brand-bridge .eyebrow{color:#d7c8dc}.brand-bridge h2{font-size:clamp(2.2rem,4.8vw,4rem);line-height:1.05;letter-spacing:-.045em;margin:0 0 24px}.brand-bridge p:not(.eyebrow){color:rgba(255,255,255,.7)}.brand-tags{display:flex;flex-wrap:wrap;gap:10px}.brand-tags span,.brand-tags a{border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:10px 14px}.brand-tags a{width:100%;border:0;padding-left:0;color:#e4c9a8;font-weight:750}.auxiliary-flow{padding-block:110px}.aux-grid{display:grid;grid-template-columns:1.2fr .9fr .9fr;gap:18px}.aux-grid article{border:1px solid var(--line);border-radius:24px;padding:24px;background:rgba(255,255,255,.42)}.aux-grid article img{border-radius:17px;aspect-ratio:16/10;object-fit:cover;margin-bottom:24px}.aux-grid h3{font-size:1.45rem;margin:0 0 12px}.aux-grid p{color:var(--muted)}.aux-grid a{color:var(--brand);font-weight:750}.aux-grid .text-only{display:flex;flex-direction:column;justify-content:flex-end;min-height:360px}.home-faq{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);gap:90px;padding-block:100px;border-top:1px solid var(--line)}.home-faq h2{font-size:clamp(2rem,4vw,3.3rem);line-height:1.1;margin:0 0 18px}.home-faq>div:first-child>p:not(.eyebrow){color:var(--muted)}.faq-stack details,.faq-list details{border-bottom:1px solid var(--line)}.faq-stack summary,.faq-list summary{list-style:none;cursor:pointer;font-weight:760;padding:20px 38px 20px 0;position:relative}.faq-stack summary::-webkit-details-marker,.faq-list summary::-webkit-details-marker{display:none}.faq-stack summary:after,.faq-list summary:after{content:"+";position:absolute;right:8px;top:17px;font-size:1.35rem;color:var(--brand)}.faq-stack details[open] summary:after,.faq-list details[open] summary:after{content:"−"}.faq-stack details p,.faq-list details p{margin:-6px 0 22px;color:var(--muted)}.closing-index{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:70px;align-items:center;padding-block:120px}.closing-image{border-radius:28px;overflow:hidden}.closing-image img{aspect-ratio:4/3;object-fit:cover}.closing-index h2{font-size:clamp(2rem,4vw,3.4rem);line-height:1.1;margin:0 0 20px}.closing-index p:not(.eyebrow){color:var(--muted)}.inline-index{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px}.inline-index a,.link-cloud a{border:1px solid var(--line-strong);border-radius:999px;padding:9px 13px;font-weight:700;font-size:.9rem}.inline-index a:hover,.link-cloud a:hover{border-color:var(--brand);color:var(--brand)}
.page-intro{padding-top:105px;padding-bottom:62px}.page-intro h1{font-size:clamp(2.7rem,6vw,5.8rem);line-height:1.01;letter-spacing:-.052em;margin:0 0 25px;max-width:1020px}.page-intro .lead{max-width:850px}.split-intro{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(280px,.72fr);gap:70px;align-items:center}.split-intro img{border-radius:28px;aspect-ratio:4/3;object-fit:cover;max-height:540px;width:100%}.breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;padding-block:15px 34px;color:var(--muted);font-size:.85rem}.breadcrumb a:hover{color:var(--brand)}.list-context{padding:38px 0 60px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}.list-context h2{margin:0;font-size:1.7rem}.list-context p{margin:0;color:var(--muted)}.article-index{padding-block:45px 90px}.article-row{display:grid;grid-template-columns:80px 1fr;gap:24px;padding:31px 0;border-bottom:1px solid var(--line)}.article-order{font-variant-numeric:tabular-nums;color:var(--brand-soft);font-weight:850;padding-top:8px}.article-row h2{font-size:clamp(1.35rem,2.4vw,1.9rem);line-height:1.3;margin:0 0 10px}.article-row h2 a:hover{color:var(--brand)}.article-row p{color:var(--muted);margin:0 0 10px}.related-categories{padding-bottom:100px}.related-categories h2{font-size:1.8rem}.link-cloud{display:flex;flex-wrap:wrap;gap:10px}.article-page{padding-bottom:100px}.prose-article{padding-top:22px}.article-hero h1{font-size:clamp(2.6rem,6vw,5rem);line-height:1.04;letter-spacing:-.045em;margin:0 0 24px}.article-hero .lead{margin-bottom:34px}.article-hero img{border-radius:28px;aspect-ratio:16/8.7;object-fit:cover}.article-body{padding:40px 0}.article-body h2,.prose h2{font-size:clamp(1.7rem,3.2vw,2.45rem);line-height:1.22;letter-spacing:-.02em;margin:58px 0 18px}.article-body p,.prose p{font-size:1.05rem;line-height:1.9;color:#48414b;margin:0 0 20px}.decision-aids{padding:12px 0 30px}.decision-aids>h2{font-size:clamp(1.7rem,3vw,2.35rem);line-height:1.22;margin:46px 0 18px}.decision-aids>p{font-size:1.02rem;line-height:1.88;color:#4c454f}.checkpoint-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:24px 0}.checkpoint-grid p{margin:0;border:1px solid var(--line);border-radius:16px;padding:17px;background:rgba(255,255,255,.42);color:#514955}.article-mini-faq{margin-top:34px;border-top:1px solid var(--line)}.article-mini-faq details{border-bottom:1px solid var(--line)}.article-mini-faq summary{cursor:pointer;font-weight:780;padding:17px 34px 17px 0;position:relative;list-style:none}.article-mini-faq summary::-webkit-details-marker{display:none}.article-mini-faq summary:after{content:"+";position:absolute;right:6px;color:var(--brand)}.article-mini-faq details[open] summary:after{content:"−"}.article-mini-faq p{margin:0 0 18px;color:var(--muted)}.article-next,.topic-return,.faq-next{margin-top:40px;background:var(--soft);border-radius:24px;padding:32px}.article-next h2,.topic-return h2,.faq-next h2{margin-top:0;font-size:1.75rem}.article-next p,.topic-return p{color:var(--muted)}
.topic-list{padding-bottom:100px}.topic-row{display:grid;grid-template-columns:70px 280px 1fr;gap:28px;align-items:center;padding:26px 0;border-bottom:1px solid var(--line)}.topic-row img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:18px}.topic-number{color:var(--brand-soft);font-weight:850}.topic-row h2{font-size:1.6rem;line-height:1.25;margin:0 0 9px}.topic-row p{color:var(--muted);margin:0 0 10px}.topic-hero{padding-top:24px}.topic-hero img{border-radius:28px;aspect-ratio:16/8;object-fit:cover;margin-bottom:38px}.topic-hero h1{font-size:clamp(2.6rem,6vw,5rem);line-height:1.02;letter-spacing:-.045em;margin:0 0 22px}.topic-reading{padding-block:65px}.topic-reading>h2{font-size:2.2rem;margin:0 0 12px}.topic-reading>p{color:var(--muted);margin-bottom:35px}.topic-reading article{display:grid;grid-template-columns:54px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}.topic-reading article>span{color:var(--brand-soft);font-weight:820}.topic-reading h3{font-size:1.3rem;margin:0 0 8px}.topic-reading p{color:var(--muted);margin:0}.topic-return{margin-bottom:100px}.alias-grid{display:flex;flex-wrap:wrap;gap:10px;margin:30px 0}.alias-grid span{background:var(--soft);border-radius:999px;padding:9px 13px;font-weight:750;color:#564d59}.prose{padding-bottom:100px}.prose>h2:first-child{margin-top:26px}.guide-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding-block:45px 85px}.guide-steps article{border-top:4px solid var(--brand);background:rgba(255,255,255,.45);padding:26px;border-radius:0 0 22px 22px}.guide-steps article>span{color:var(--brand-soft);font-weight:900}.guide-steps h2{font-size:1.45rem;line-height:1.3;margin:18px 0 12px}.guide-steps p{color:var(--muted)}.guide-steps a{color:var(--brand);font-weight:760}.faq-list{padding-bottom:40px}.faq-list summary{font-size:1.08rem;padding:24px 46px 24px 0;display:flex;gap:16px}.faq-list summary span{color:var(--brand-soft);font-variant-numeric:tabular-nums}.faq-list details p{padding-left:43px;line-height:1.85}.faq-next{margin-bottom:100px}.search-page-form{max-width:760px;margin-top:32px}.search-results{padding-bottom:100px}.search-results article{display:grid;grid-template-columns:120px 1fr;gap:28px;padding:24px 0;border-bottom:1px solid var(--line)}.search-results article>span{color:var(--brand);font-weight:780;font-size:.84rem;padding-top:5px}.search-results h3{font-size:1.35rem;margin:0 0 7px}.search-results p{margin:0;color:var(--muted)}.empty-state{padding:50px;border:1px solid var(--line);border-radius:24px;background:rgba(255,255,255,.42)}.empty-state h2{font-size:2rem;margin:0 0 12px}.empty-state p{color:var(--muted)}.error-page{padding-block:150px}.error-page h1{font-size:clamp(2.8rem,7vw,5.6rem);line-height:1;margin:0 0 24px}.error-page>p:not(.eyebrow){color:var(--muted);font-size:1.08rem}
.site-footer{background:#1f1b23;color:#fff;padding:70px 0 28px}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:54px}.footer-brand strong{font-size:1.4rem}.footer-brand p{color:rgba(255,255,255,.62);max-width:420px;font-size:.91rem}.footer-grid h2{font-size:.88rem;letter-spacing:.08em;color:#d8cbdc;margin:0 0 17px}.footer-grid>div:not(.footer-brand){display:grid;align-content:start;gap:10px}.footer-grid a{color:rgba(255,255,255,.72);font-size:.9rem}.footer-grid a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding-top:22px;display:flex;justify-content:space-between;gap:20px;color:rgba(255,255,255,.5);font-size:.82rem}.footer-bottom a{color:rgba(255,255,255,.72)}
@media (max-width:1100px){.header-inner{grid-template-columns:auto auto 1fr}.primary-nav{position:absolute;left:0;right:0;top:77px;background:var(--paper);border-bottom:1px solid var(--line);padding:18px 24px;display:none;flex-wrap:wrap;justify-content:center}.site-header.nav-open .primary-nav{display:flex}.menu-toggle{display:inline-flex;justify-self:end}.search-trigger{justify-self:end}.home-cover{min-height:620px}.cover-copy{padding-top:120px}.featured-split,.editorial-columns,.closing-index{gap:42px}.band-layout{gap:60px}.topic-row{grid-template-columns:56px 220px 1fr}.aux-grid{grid-template-columns:1fr 1fr}.aux-grid article:first-child{grid-row:span 2}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/4}}
@media (max-width:900px){.shell{width:min(100% - 34px,var(--shell))}.cover-copy h1{max-width:660px}.intro-strip,.band-layout,.home-faq,.brand-bridge,.list-context{grid-template-columns:1fr;gap:34px}.band-title{position:static}.featured-split,.editorial-columns,.closing-index,.split-intro{grid-template-columns:1fr}.feature-photo{min-height:420px}.section-head{grid-template-columns:1fr;gap:16px}.topic-mosaic{grid-template-columns:repeat(2,1fr);grid-auto-rows:240px}.tile-1,.tile-2,.tile-3,.tile-4,.tile-5{grid-column:span 1;grid-row:span 1}.tile-1{grid-column:span 2}.topic-row{grid-template-columns:46px 1fr}.topic-row img{grid-column:2}.topic-row>div:last-child{grid-column:2}.guide-steps{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:last-child{grid-column:auto}.page-intro{padding-top:78px}}
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