@charset "UTF-8";
:root{--background:#FAF8F2;--paper:#FFFDF8;--surface:#fff;--surface-soft:#F3F0E9;--blueberry:#4B426F;--blueberry-deep:#332D51;--blueberry-soft:#EFECF6;--persimmon:#CB633B;--persimmon-deep:#A74428;--persimmon-soft:#FAEAE1;--sky:#4D83A3;--sky-soft:#E9F3F7;--mint:#398777;--mint-soft:#E7F4EE;--lemon:#D2AA44;--lemon-soft:#FAF1D8;--rose:#BC798D;--rose-soft:#F7ECF0;--title:#292C39;--body:#464B58;--muted:#646A77;--border:#E4E0DC;--divider:#EEEAE5}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;background:var(--background);color:var(--body);font:16px/1.76 system-ui,-apple-system,"Microsoft YaHei","PingFang SC",sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}a:hover{color:var(--persimmon-deep)}button,input,select{font:inherit}button{cursor:pointer}img{display:block;max-width:100%;height:auto}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--title);line-height:1.26}h1{font-size:clamp(30px,4.2vw,54px);letter-spacing:-1.6px}h2{font-size:clamp(23px,2.3vw,30px);letter-spacing:-.6px}h3{font-size:20px}p{line-height:1.8}.shell{width:min(1320px,calc(100% - 64px));margin-inline:auto}.section{margin-top:84px;margin-bottom:84px}.eyebrow{font-size:12px;letter-spacing:1.6px;font-weight:800;text-transform:uppercase;color:var(--persimmon-deep)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.site-header{position:relative;z-index:30;background:var(--paper);border-bottom:1px solid var(--border)}.topbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:35px}.brand{display:flex;align-items:center;gap:12px;font-size:24px;line-height:1.08;font-weight:900;color:var(--blueberry-deep);white-space:nowrap}.brand small{display:block;font-size:11px;font-weight:600;color:var(--muted);letter-spacing:2px;margin-top:5px}.brand-icon{display:grid;place-items:center;background:var(--persimmon-soft);border-radius:13px;width:44px;height:44px;font-size:25px}.top-search{display:flex;max-width:460px;width:42%;height:44px;background:#f4f1eb;border-radius:12px;border:1px solid var(--border)}.top-search input{flex:1;min-width:0;background:transparent;border:0;padding:0 16px;outline:none}.top-search button{border:0;background:transparent;color:var(--blueberry);font-size:28px;padding:0 17px}.main-nav{border-top:1px solid var(--divider)}.nav-inner{display:flex;align-items:center;gap:35px;height:54px}.nav-inner a{font-size:14px;font-weight:750;white-space:nowrap}.nav-inner a[aria-current=page]{color:var(--persimmon-deep)}.menu-toggle,.menu-backdrop{display:none}.btn{display:inline-flex;justify-content:center;align-items:center;border:1px solid var(--persimmon);padding:11px 22px;min-height:44px;background:var(--persimmon);color:white;border-radius:11px;font-weight:750}.btn:hover{background:var(--persimmon-deep);color:#fff}.btn-outline{color:var(--persimmon);background:transparent}.btn-outline:hover{color:white}.text-link{display:inline-block;color:var(--persimmon-deep);font-weight:800;font-size:14px}.hero{display:grid;grid-template-columns:1fr 45%;min-height:390px;background:var(--paper);margin-top:25px;border:1px solid var(--border);border-radius:22px;overflow:hidden}.hero-copy{padding:50px 6% 34px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.hero h1{max-width:650px;margin:16px 0 15px}.hero h1 em{font-style:normal;color:var(--persimmon)}.hero-copy>p{max-width:570px;font-size:17px}.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:24px;margin-top:17px}.hero-foot{font-size:10px;letter-spacing:2px;font-weight:800;color:var(--muted);margin-top:28px}.hero-media,.image-fallback.hero-media{width:100%;height:100%;min-height:390px;object-fit:contain;background:radial-gradient(circle at 80% 20%,#e6dee9,#f6e8d8 52%,#e9f3f7);color:var(--blueberry);display:grid;place-items:center;text-align:center;padding:24px;font-size:25px;font-weight:900}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:25px}.section-heading h2{margin:5px 0 0}.section-heading p{margin:0;font-size:14px;color:var(--muted)}.fold-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.fold{min-height:152px;border-radius:14px;background:var(--persimmon-soft);padding:20px;display:flex;flex-direction:column;transition:transform .2s}.fold:hover{transform:translateY(-3px)}.fold span{font-size:13px;font-weight:800}.fold strong{font-size:19px;color:var(--title);margin:7px 0}.fold small{font-size:12px;line-height:1.6}.fold-blue,.fold-sky{background:var(--sky-soft)}.fold-purple,.fold-violet{background:var(--blueberry-soft)}.fold-rose{background:var(--rose-soft)}.fold-yellow{background:var(--lemon-soft)}.fold-mint{background:var(--mint-soft)}.editor-list{border-top:2px solid var(--title)}.editor-list>a{display:grid;grid-template-columns:65px 1fr 130px 20px;align-items:center;gap:15px;border-bottom:1px solid var(--border);padding:20px 8px}.list-num{font-weight:900;color:var(--persimmon);font-size:23px}.list-main{display:flex;flex-direction:column}.list-main b{font-size:18px;color:var(--title)}.list-main small{color:var(--muted);font-size:13px;line-height:1.6}.list-cat{font-size:12px;font-weight:800;color:var(--blueberry)}.split-feature{display:grid;grid-template-columns:1fr 2fr;gap:50px;padding:38px;border-radius:17px;background:var(--sky-soft)}.split-feature h2{margin:7px 0}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:center}.steps>div{border-left:2px solid var(--sky);padding-left:18px}.steps b{display:block;font-size:26px;color:var(--sky)}.steps strong{color:var(--title)}.steps p{font-size:13px;margin:8px 0 0}.verify-board{display:grid;grid-template-columns:30% 1fr;gap:30px;align-items:center}.contrast{display:grid;grid-template-columns:1fr 1fr;gap:16px}.contrast article{background:var(--persimmon-soft);border-radius:16px;padding:28px}.contrast article+article{background:var(--mint-soft)}.contrast span{font-size:13px;font-weight:800}.contrast h3{margin:9px 0}.contrast p{font-size:14px;margin:0}.media-layout{display:grid;grid-template-columns:52% 1fr;gap:35px;align-items:stretch}.media-large,.image-fallback.media-large{width:100%;height:360px;object-fit:contain;border-radius:16px;background:var(--sky-soft);display:grid;place-items:center;padding:20px;font-weight:800;color:var(--sky)}.text-item{display:flex;flex-direction:column;border-bottom:1px solid var(--border);padding:15px 0}.text-item span{font-size:12px;color:var(--muted)}.text-item b{font-size:17px;color:var(--title)}.stage-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--border);border-radius:16px;overflow:hidden;background:var(--paper)}.stage-strip a{padding:23px;border-right:1px solid var(--border);min-height:190px;display:flex;flex-direction:column;justify-content:space-between}.stage-strip a:last-child{border:0}.stage-strip span,.stage-strip small{font-size:12px;color:var(--rose)}.stage-strip h3{font-size:17px;margin:12px 0}.meme-wall{display:grid;grid-template-columns:30% 1fr;gap:35px}.stickers{display:flex;flex-wrap:wrap;align-content:center;gap:13px}.sticker{border:1px solid #d1b76c;background:var(--lemon-soft);padding:13px 18px;border-radius:8px;transform:rotate(-1deg);font-size:14px;font-weight:750;max-width:100%}.sticker-1{background:var(--rose-soft);border-color:#d6b6c1;transform:rotate(2deg)}.sticker-2{background:var(--sky-soft);border-color:#b4d0de}.sticker-3{background:var(--mint-soft);border-color:#a0cdbb;transform:rotate(1deg)}.platform-section{background:var(--blueberry-deep);border-radius:18px;padding:40px;color:#fff;display:grid;grid-template-columns:30% 1fr;gap:40px}.platform-section h2{color:white}.platform-section .eyebrow{color:#f4c998}.platform-section .btn-outline{border-color:#f4c998;color:#fff}.platform-tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.platform-tiles>div{background:#4b4468;border-radius:12px;padding:23px}.platform-tiles b{color:#ffe1b7}.platform-tiles p{margin:12px 0 0;font-size:13px;color:#ece6f5}.two-columns{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:16px}.two-columns article{padding:34px;background:var(--sky-soft);border-radius:16px}.two-columns article+article{background:var(--persimmon-soft)}.two-columns span{font-size:12px;font-weight:800}.two-columns h3{margin:13px 0}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feature-card{background:var(--paper);border:1px solid var(--border);border-radius:15px;overflow:hidden}.feature-card>div:last-child{padding:22px}.feature-card p{font-size:14px}.feature-card h3{margin:9px 0}.feature-image,.image-fallback.feature-image{width:100%;height:195px;object-fit:contain;background:var(--rose-soft);display:grid;place-items:center;padding:16px;text-align:center;font-weight:800}.feature-card:nth-child(2) .feature-image{background:var(--sky-soft)}.next-section{padding:35px 0;border-top:2px solid var(--title)}.next-links{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.next-links a{display:flex;justify-content:space-between;font-weight:800;font-size:17px;border-bottom:1px solid var(--border);padding:15px 0}.footer{background:#edeae4;border-top:1px solid var(--border);padding-top:45px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:60px}.footer-grid b{font-size:24px;color:var(--blueberry)}.footer-grid p{max-width:420px;font-size:13px}.footer-grid>div:not(:first-child){display:flex;flex-direction:column;gap:8px}.footer-grid strong{font-size:14px;color:var(--title)}.footer-grid a{font-size:13px}.footer-bottom{border-top:1px solid #dbd5cf;font-size:12px;padding:15px 0;margin-top:35px;color:var(--muted)}.mobile-bottom{display:none}
/* inner pages */
.inner-page{padding-top:38px;padding-bottom:85px;min-height:65vh}.page-intro{max-width:830px;margin-bottom:35px}.page-intro h1{font-size:clamp(34px,4vw,51px);margin:10px 0 15px}.page-intro p{font-size:17px}.brief-intro{border-left:7px solid var(--persimmon);padding-left:27px}.chips{display:flex;gap:9px;overflow:auto;padding-bottom:13px;margin-bottom:30px}.chips a{white-space:nowrap;border:1px solid var(--border);border-radius:100px;padding:7px 15px;font-size:13px;font-weight:700;background:var(--paper)}.chips a[aria-current=true]{color:#fff;background:var(--blueberry)}.brief-layout{display:grid;grid-template-columns:1fr 270px;gap:50px}.brief-entry{display:grid;grid-template-columns:56px 1fr;gap:12px;border-top:1px solid var(--border);padding:25px 0}.brief-entry h2{font-size:22px;margin:10px 0}.brief-entry p{font-size:15px;margin-bottom:9px}.brief-entry small{color:var(--muted);font-size:12px}.brief-index{font-size:28px;font-weight:900;color:#d5cbc3}.side-note{padding:26px;background:var(--lemon-soft);border-radius:14px;height:max-content}.side-note h3{margin-top:10px}.side-note p{font-size:14px}.side-note a{color:var(--persimmon-deep);font-weight:800}.pagination{display:flex;gap:8px;margin-top:25px;flex-wrap:wrap}.pagination a{display:grid;place-items:center;min-width:44px;min-height:44px;border-radius:9px;border:1px solid var(--border);background:var(--paper)}.pagination a[aria-current=page]{background:var(--blueberry);color:white}.category-selector{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin:30px 0 42px}.category-selector a{background:var(--paper);border:1px solid var(--border);padding:14px;border-radius:10px}.category-selector a[aria-current=true]{border-color:var(--persimmon);background:var(--persimmon-soft)}.category-selector small{display:block;color:var(--persimmon-deep);font-size:12px}.category-selector b{display:block;font-size:15px}.category-toolbar{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:18px}.category-toolbar h2,.category-toolbar p{margin:0}.category-toolbar p{font-size:13px}.category-toolbar form{display:flex;gap:8px}.category-toolbar input,.search-form input,.search-form select{border:1px solid var(--border);border-radius:10px;background:white;padding:10px 15px;min-width:0}.channel-list{border-top:2px solid var(--title)}.channel-entry{display:grid;grid-template-columns:60px 1fr auto;gap:15px;padding:24px 0;border-bottom:1px solid var(--border);align-items:start}.channel-number{color:var(--persimmon);font-size:23px;font-weight:900}.channel-entry h3{margin:6px 0}.channel-entry p{font-size:14px;margin-bottom:10px}.channel-thumb,.image-fallback.channel-thumb{width:180px;height:103px;object-fit:contain;background:var(--sky-soft);border-radius:10px;display:grid;place-items:center;font-size:12px;text-align:center;padding:10px}.tags{display:flex;gap:8px;flex-wrap:wrap}.tags span,.tags a{font-size:12px;background:var(--surface-soft);padding:4px 10px;border-radius:6px}.breadcrumb{font-size:13px;color:var(--muted);margin:2px 0 35px}.topic-header{max-width:880px;padding-bottom:35px}.topic-header h1{font-size:clamp(34px,4vw,50px);margin:12px 0 20px}.topic-header>p{font-size:19px;max-width:790px}.article-grid{display:grid;grid-template-columns:minmax(0,820px) minmax(0,250px);gap:55px;align-items:start}.topic-cover,.image-fallback.topic-cover{width:100%;max-height:410px;min-height:280px;object-fit:contain;background:var(--blueberry-soft);border-radius:16px;display:grid;place-items:center;text-align:center;padding:25px;font-size:24px;font-weight:800;color:var(--blueberry)}.article-prose{font-size:17px;line-height:1.85;margin-top:30px}.article-prose section{margin-bottom:38px}.article-prose h2{font-size:25px;margin-bottom:14px}.article-prose p{line-height:1.9}.sticky-note{position:sticky;top:25px;background:var(--paper);padding:24px;border:1px solid var(--border);border-radius:13px}.sticky-note a{display:block;font-size:14px;padding:6px 0}.sticky-note h3{margin:10px 0}.sticky-note p{font-size:13px;margin:5px 0}.source-box{padding:27px;border-left:4px solid var(--mint);background:var(--mint-soft);border-radius:0 14px 14px 0}.source-box h2{font-size:22px;margin:10px 0}.source-box p{font-size:14px}.discussion{margin-top:45px}.discussion p{padding:13px 0;border-bottom:1px solid var(--border);font-size:16px}.discussion b{color:var(--persimmon)}.mini-card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.mini-card{border:1px solid var(--border);padding:22px;border-radius:12px;background:var(--paper);display:flex;flex-direction:column;gap:10px}.mini-card strong{font-size:17px;line-height:1.5}.mini-card small{color:var(--persimmon-deep)}.related-features{font-size:14px;margin:30px 0}.related-features a{font-weight:750;margin-right:15px;color:var(--blueberry)}.feature-intro{max-width:750px}.feature-directory{display:grid;grid-template-columns:repeat(2,1fr);gap:17px}.feature-directory-item{min-height:220px;border-radius:16px;padding:30px;background:var(--blueberry-soft);display:flex;flex-direction:column}.feature-directory-item>span{letter-spacing:1.7px;font-size:11px;font-weight:850}.feature-directory-item h2{margin:14px 0 10px}.feature-directory-item p{max-width:450px;font-size:14px}.feature-directory-item strong{margin-top:auto;color:var(--persimmon-deep);font-size:13px}.feature-tone-1{background:var(--persimmon-soft)}.feature-tone-2{background:var(--sky-soft)}.feature-tone-3{background:var(--mint-soft)}.feature-detail-hero{display:grid;grid-template-columns:1fr 42%;gap:40px;align-items:center;background:var(--blueberry-soft);padding:40px;border-radius:18px}.feature-detail-hero h1{margin:12px 0 15px}.feature-detail-image,.image-fallback.feature-detail-image{width:100%;height:290px;object-fit:contain;border-radius:14px;background:var(--paper);display:grid;place-items:center;padding:18px}.feature-detail-body{display:grid;grid-template-columns:1fr 250px;gap:70px;margin-top:45px}.feature-detail-body p{font-size:16px;line-height:1.9}.feature-detail-body aside{background:var(--paper);padding:20px;height:max-content;border-radius:12px}.feature-detail-body aside a{display:block;border-top:1px solid var(--border);padding:10px 0;font-size:14px}.feature-related{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.feature-related article{background:var(--paper);border:1px solid var(--border);padding:28px;border-radius:13px}.feature-related article span{font-size:12px;color:var(--persimmon-deep);font-weight:800}.feature-related h3{margin:12px 0}.feature-related p{font-size:14px}.search-intro{max-width:710px}.search-form{background:var(--paper);border:1px solid var(--border);padding:25px;border-radius:14px;display:grid;gap:12px;max-width:930px}.search-form>label{font-size:14px;font-weight:800}.search-form>div{display:flex;gap:10px}.search-form input{flex:1;font-size:17px;min-height:50px}.search-form select{max-width:290px}.search-results{margin-top:40px;max-width:930px}.search-result{border-bottom:1px solid var(--border);padding:19px 0}.search-result h3{margin:7px 0}.search-result p{font-size:14px}.search-help{padding:35px;border-radius:13px;background:var(--sky-soft)}.search-help .tags a{background:white}.empty-text{padding:30px;background:var(--paper);border-radius:12px}.about-layout{display:grid;grid-template-columns:210px 1fr;gap:60px}.about-index{align-self:start;position:sticky;top:20px;border-top:3px solid var(--blueberry)}.about-index h3{margin-top:18px}.about-index a{display:block;padding:7px 0;font-size:14px}.about-content{max-width:870px}.about-content section{padding:10px 0 40px;border-bottom:1px solid var(--border);margin-bottom:28px}.about-content h2{margin:10px 0 18px}.about-cats{display:grid;grid-template-columns:1fr 1fr;gap:18px}.about-cats>div{padding:17px;background:var(--paper);border-radius:12px}.about-cats strong{color:var(--title)}.about-cats p{font-size:13px;margin:7px 0}.about-content details{border-bottom:1px solid var(--border);padding:13px 0}.about-content summary{cursor:pointer;font-weight:750}.about-content details p{margin:12px 0;font-size:14px}
@media(max-width:1050px){.fold-grid{grid-template-columns:repeat(2,1fr)}.stage-strip{grid-template-columns:repeat(2,1fr)}.stage-strip a:nth-child(2){border-right:0}.stage-strip a:nth-child(-n+2){border-bottom:1px solid var(--border)}.article-grid{grid-template-columns:minmax(0,1fr) 210px;gap:25px}.feature-detail-body{gap:30px}}
@media(max-width:780px){.shell{width:calc(100% - 40px)}.nav-inner{gap:18px}.hero{grid-template-columns:1fr}.hero-copy{padding:40px 7%}.hero-media,.image-fallback.hero-media{height:250px;min-height:250px}.split-feature,.verify-board,.meme-wall,.platform-section{grid-template-columns:1fr}.media-layout{grid-template-columns:1fr}.media-large,.image-fallback.media-large{height:280px}.feature-grid{grid-template-columns:1fr 1fr}.feature-grid .feature-card:last-child{grid-column:1/-1}.brief-layout{grid-template-columns:1fr}.side-note{display:none}.article-grid{grid-template-columns:1fr}.article-aside{display:none}.feature-detail-hero{grid-template-columns:1fr}.feature-detail-body{grid-template-columns:1fr}.feature-detail-body aside{display:none}.about-layout{grid-template-columns:1fr}.about-index{display:none}.footer-grid{gap:30px}.category-selector{grid-template-columns:repeat(4,1fr)}.category-selector a{padding:10px}.category-selector b{font-size:13px}}
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