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small{font-size:7px}.brand-symbol{width:33px;height:33px;font-size:23px}.header-actions{gap:5px}.support-link{font-size:21px;padding-left:7px}.support-link span{display:none}.icon-btn{width:28px}.header nav{font-size:11px;gap:18px}.hero{min-height:605px}.hero-content{padding:57px 6% 75px;width:100%}.hero h1{font-size:52px;letter-spacing:-2px;margin-top:27px}.hero-content>p{font-size:13px}.hero-bg{object-position:60% center;opacity:.8}.hero-shade{background:linear-gradient(90deg,#0b1517ed,#0b1517a3 65%,#0b151770)}.hero-kicker{font-size:10px;letter-spacing:2px}.hero-actions{gap:10px}.btn{font-size:12px;padding:11px 15px;gap:16px}.hero-caption{display:none}.hero-bottom{font-size:7px;letter-spacing:1px;left:6%}.hero-note{margin-top:32px}.quick-strip{padding:18px 5%;gap:23px}.quick-strip>span:first-child{display:none}.container{width:90%}.section{margin-top:43px;margin-bottom:40px}.section-head{align-items:start}.section-head h2{font-size:24px}.section-head>.muted{display:none}.section-head .text-link{font-size:10px;white-space:nowrap;padding-top:26px}.eyebrow{font-size:8px;letter-spacing:1.5px}.path-grid{grid-template-columns:1fr}.path-card{min-height:245px;padding:24px}.path-card h3{font-size:27px}.path-card:first-child{display:grid;grid-template-columns:1fr 1fr;column-gap:20px}.path-card:first-child .path-icon{grid-column:2;grid-row:1/3;justify-self:end;font-size:60px}.path-card:first-child .eyebrow{grid-column:1;grid-row:1}.path-card:first-child h3{grid-column:1;grid-row:2}.path-card:first-child p{grid-column:1/3}.path-card:first-child .path-bottom{grid-column:1/3;margin-top:0}.path-card.photo>div{padding:40px 24px 24px;min-height:280px}.path-card.photo img{object-position:center 35%}.article-grid{grid-template-columns:1fr;gap:13px}.article-card{padding:22px}.card-top{margin-bottom:17px}.article-card p{min-height:0;margin-bottom:18px}.feature-banner{margin-top:40px}.feature-banner>div{padding:34px 26px}.feature-banner h2{font-size:29px}.support-banner{padding:38px 0;display:block}.support-banner h2{font-size:24px}.support-banner .btn{margin-top:22px}footer{padding:28px 5%;gap:25px}footer>div{gap:20px;font-size:10px}footer>p{font-size:9px}.page-intro{padding-top:40px}.page-intro h1{font-size:31px;line-height:1.5}.page-intro p{font-size:12px}.learning-bar{flex-direction:column;padding:18px;gap:10px;font-size:11px}.tabs{gap:3px}.tabs button{font-size:11px;padding:8px 10px}.filter-row{gap:14px}.article-body>h1{font-size:30px}.article-body h2{font-size:22px}.article-body p{font-size:14px}.byline{font-size:10px;gap:8px;flex-wrap:wrap}.article-layout{padding-top:28px}.toc{display:none}.explore-grid{grid-template-columns:1fr}.explore-card{height:330px}.explore-card>div{width:100%;padding:28px}.forum-aside{grid-template-columns:1fr}.post-row{padding:18px;gap:12px}.post-row h3{font-size:16px}.post-row .user-avatar{width:28px;height:28px;font-size:12px}.post-row p{font-size:11px}.post-detail h1{font-size:30px}.support-hero{padding-top:45px}.support-hero h1{font-size:28px}.support-hero p{font-size:12px}.support-grid{grid-template-columns:1fr;gap:15px}.support-grid .panel{padding:25px}.admin-stats{grid-template-columns:1fr 1fr;gap:12px}.admin-stats>div{font-size:22px;padding:18px}.panel{padding:22px}.two-fields{grid-template-columns:1fr;gap:0}.moderation-row{flex-direction:column}.empty{padding:45px 20px}.empty h2{font-size:22px}dialog{padding:30px 22px}.article-actions{flex-direction:column}.comments form small{display:block;margin:12px 0}.comment small{display:block;margin:7px 0}.supporter-wall .section-head h2{font-size:24px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
.hero-bg{transform:none}
.brand-logo{width:44px;height:44px;border-radius:50%;border:1px solid #c4dcb680;box-shadow:0 0 0 4px #b9d7a10b;transition:transform .25s;flex-shrink:0}.brand:hover .brand-logo{transform:rotate(-8deg)}footer .brand-logo{width:36px;height:36px}.resource-panel{padding:24px;margin:30px 0 40px;background:linear-gradient(135deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:12px}.resource-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}.resource-heading .eyebrow{margin:0;font-size:8px}.resource-hint{color:var(--muted);font-size:10px}.article-body .resource-panel h2{font-size:20px;margin:12px 0 20px}.resource-grid{display:grid;gap:10px}.resource-card{display:flex;align-items:center;gap:14px;padding:16px;background:var(--bg);border:1px solid var(--line);border-radius:8px;transition:transform .2s,border-color .2s}.resource-card:hover{transform:translateX(3px);border-color:var(--accent)}.resource-number{font-size:10px;color:var(--muted);align-self:start;padding-top:4px}.resource-card>div{flex:1;min-width:0}.resource-card strong{font-size:13px;font-weight:600;display:block}.resource-card small{display:block;font-size:11px;color:var(--muted);line-height:1.7;margin-top:5px}.resource-domain{display:block;color:var(--muted);font-size:9px;letter-spacing:.4px;margin-top:6px;overflow-wrap:anywhere}.resource-arrow{color:var(--accent);font-size:20px}html[data-theme=light] .resource-arrow{color:#5d7f30}@media(max-width:600px){.brand-logo{width:35px;height:35px}.resource-panel{padding:18px}.resource-card{padding:14px;gap:10px}.resource-hint{font-size:9px}.article-body .resource-panel h2{font-size:19px}}
.lesson-navigation{display:grid;grid-template-columns:1fr 1.05fr 1fr;gap:12px;margin:38px 0;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);white-space:normal;align-items:stretch}.lesson-navigation .lesson-direction{padding:14px;border:1px solid var(--line);border-radius:8px;background:var(--panel);min-width:0;display:flex;flex-direction:column;justify-content:center;gap:8px}.lesson-direction span{font-size:10px;color:var(--muted)}.lesson-direction strong{font-size:12px;color:var(--text);line-height:1.7;letter-spacing:0;font-weight:500}.lesson-direction.next{text-align:right}.lesson-navigation a:hover{border-color:var(--accent)}.lesson-navigation a:after{display:none}.lesson-jump{display:flex;flex-direction:column;justify-content:center;min-width:0;padding:10px 4px}.lesson-jump label{font-size:11px;margin:0 0 9px;color:var(--muted);display:flex;align-items:center;justify-content:space-between}.lesson-jump label small{font-size:9px}.lesson-jump select{width:100%;min-width:0;padding:10px 8px;border:1px solid var(--line);border-radius:6px;background:var(--panel);color:var(--text);font-size:11px}.appearance-options{display:grid;gap:10px;margin-top:23px}.appearance-option{display:flex;align-items:center;gap:16px;text-align:left;padding:16px;background:var(--bg);border:1px solid var(--line);border-radius:9px}.appearance-option[aria-pressed=true]{border-color:var(--accent);background:var(--panel2)}.appearance-option>span{font-size:27px;width:30px}.appearance-option>div{flex:1}.appearance-option strong{display:block;font-size:14px}.appearance-option small{display:block;font-size:11px;color:var(--muted);margin-top:5px}.appearance-option>b{color:var(--accent)}.appearance-options+.fine{margin-bottom:0}@media(max-width:600px){.lesson-navigation{grid-template-columns:1fr 1fr;gap:10px}.lesson-jump{grid-column:1/-1;grid-row:1;padding:0 0 6px}.lesson-navigation .lesson-direction{padding:13px}.lesson-direction strong{font-size:11px}.lesson-jump select{font-size:12px}.appearance-option{padding:14px;gap:12px}}
.header .brand small{letter-spacing:.8px;font-size:9px}.email-code-row{display:flex;align-items:end;gap:10px;margin-bottom:16px}.email-code-row label{flex:1;margin:0;min-width:0}.email-code-row .btn{min-height:43px;padding:10px 14px;white-space:nowrap;font-size:11px}.email-note{font-size:11px;line-height:1.8;padding:12px 14px;background:var(--panel2);border-radius:6px}.account-email{font-size:12px;overflow-wrap:anywhere;margin-bottom:0}.market-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:17px;margin-bottom:25px}.market-card{display:block;padding:24px;background:var(--panel);border:1px solid var(--line);border-radius:10px;transition:transform .2s,border-color .2s}.market-card:hover{transform:translateY(-4px);border-color:var(--accent)}.market-card>div{display:flex;justify-content:space-between;gap:6px}.market-card>div>span:last-child{color:var(--accent)}.market-card h3{font-size:25px;margin:12px 0 14px}.market-card p{font-size:12px;line-height:1.9;margin:19px 0}.market-card>small{display:block;padding-top:15px;border-top:1px solid var(--line);font-size:10px;color:var(--muted);line-height:1.8}.admin-navigation{display:flex;gap:20px;align-items:center;border:1px solid var(--line);border-radius:10px;padding:15px 20px;margin-bottom:30px;background:var(--panel);flex-wrap:wrap;white-space:normal}.admin-navigation a{padding:8px 0;font-size:13px}.admin-navigation .btn{margin-left:auto}.mail-panel{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;padding:32px}.mail-panel h3{margin-top:25px;font-size:21px}.mail-panel ol{padding-left:20px;color:var(--muted);font-size:12px;line-height:2.4}.mail-panel .fine{margin-bottom:0}.announcement-banner{display:flex;justify-content:space-between;align-items:center;gap:25px;border:1px solid var(--line);background:linear-gradient(120deg,var(--panel2),var(--panel));border-radius:12px;padding:25px 30px;margin-bottom:32px}.announcement-banner h2{font-size:23px;margin:5px 0 9px}.announcement-banner p{font-size:12px;margin-bottom:0}.announcement-banner .eyebrow{margin-bottom:8px}@media(max-width:1000px){.market-grid{grid-template-columns:1fr 1fr}.mail-panel{gap:25px}}@media(max-width:600px){.market-grid{grid-template-columns:1fr}.mail-panel{grid-template-columns:1fr;padding:22px}.announcement-banner{display:block;padding:24px}.announcement-banner .btn{margin-top:20px}.admin-navigation{gap:12px;padding:15px}.admin-navigation a{font-size:11px}.admin-navigation .btn{margin-left:0;width:100%}.header .brand small{font-size:7px;letter-spacing:.2px}}
/* 教程分区使用颜色与文字双重标识。 */
[data-category="入门指南"]{--section-accent:#91bd65;--section-tint:rgba(145,189,101,.10)}
[data-category="账号与安全"]{--section-accent:#83abf4;--section-tint:rgba(131,171,244,.10)}
[data-category="探索与社交"]{--section-accent:#e6b46e;--section-tint:rgba(230,180,110,.10)}
[data-category="设置百科"]{--section-accent:#71c6bd;--section-tint:rgba(113,198,189,.10)}
[data-category="创作者学院"]{--section-accent:#bd9bed;--section-tint:rgba(189,155,237,.10)}
.article-card{border-top:3px solid var(--section-accent);background:linear-gradient(140deg,var(--section-tint),transparent 75%)}
.article-card .badge{background:var(--section-tint);border:1px solid var(--section-accent)}
.article-body>section[id]{padding:4px 22px 20px;border-left:3px solid var(--section-accent);margin:30px 0;background:linear-gradient(90deg,var(--section-tint),transparent);border-radius:0 14px 14px 0}
.article-body>section[id] h2{padding-top:20px;margin-top:0}
.beginner-route{margin:52px 0;padding:30px;border:1px solid var(--line);border-radius:24px;background:var(--panel)}
.beginner-route .section-head{margin-bottom:24px}.beginner-route .section-head p{color:var(--muted);margin:12px 0 0}
.route-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;list-style:none;padding:0;margin:0}
.route-steps li{padding:22px;border-radius:16px;background:rgba(145,189,101,.09);border-top:3px solid #91bd65}.route-steps li:nth-child(2){background:rgba(113,198,189,.09);border-color:#71c6bd}.route-steps li:nth-child(3){background:rgba(131,171,244,.09);border-color:#83abf4}.route-steps li:nth-child(4){background:rgba(189,155,237,.09);border-color:#bd9bed}
.step-number{font-size:13px;letter-spacing:.12em;color:var(--muted)}.route-steps h3{font-size:19px;margin:14px 0}.route-steps p{font-size:14px;line-height:1.9;color:var(--muted)}.route-steps a{display:inline-block;font-size:13px;font-weight:650;margin:8px 12px 0 0;text-decoration:underline;text-underline-offset:5px}
.concept-panel,.network-prerequisite,.rank-panel{margin:30px 0;padding:25px;border:1px solid var(--line);border-radius:18px;background:var(--section-tint,rgba(131,171,244,.08))}
.concept-panel h2,.network-prerequisite h2,.rank-panel h2{margin-top:12px}.concept-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin:22px 0}.concept-grid>div{border:1px solid var(--line);padding:18px;border-radius:13px;background:var(--panel)}.concept-grid b{font-size:15px}.concept-grid p,.concept-grid small{font-size:14px;line-height:1.85}.concept-grid a,.network-prerequisite a{color:inherit;text-decoration:underline;text-underline-offset:4px}.network-prerequisite{border-top:4px solid #e6b46e;background:rgba(230,180,110,.07)}.network-prerequisite ol{padding-left:24px}.network-prerequisite li{margin:14px 0;line-height:1.9}.network-prerequisite .concept-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.tutorial-image{margin:24px 0}.tutorial-image img{display:block;width:100%;height:auto;border-radius:12px;border:1px solid var(--line)}.tutorial-image figcaption{font-size:12px;color:var(--muted);line-height:1.8;margin-top:10px}.network-reminder{padding:22px;border-radius:14px;background:rgba(230,180,110,.1);border-left:4px solid #e6b46e;margin:26px 0}.network-reminder a{font-size:14px;display:inline-block;margin:8px 18px 0 0;text-decoration:underline;text-underline-offset:5px}
.rank-scale{list-style:none;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin:24px 0}.rank-scale li{display:flex;flex-direction:column;gap:10px;border:1px solid var(--line);border-top:3px solid var(--rank);padding:15px 12px;border-radius:12px;background:var(--panel)}.rank-scale i{width:13px;height:13px;background:var(--rank);border-radius:50%;border:1px solid #777}.rank-scale strong{font-size:14px}.rank-scale span{font-size:12px}.rank-scale small{font-size:12px;line-height:1.7;color:var(--muted)}.rank-visitor{--rank:#c5c8cc}.rank-new{--rank:#65a4f2}.rank-user{--rank:#65bc70}.rank-known{--rank:#e7a458}.rank-trusted{--rank:#ab81e3}
.tutorial-invite{display:flex;align-items:center;flex-wrap:wrap;gap:20px;padding:25px;border:1px solid var(--line);border-left:4px solid #bd9bed;border-radius:18px;margin:20px 0 32px;background:rgba(189,155,237,.08)}.tutorial-invite>div{flex:1;min-width:240px}.tutorial-invite h2{font-size:24px;margin:12px 0}.tutorial-invite p{font-size:14px;line-height:1.8;color:var(--muted)}
@media(max-width:1100px){.route-steps{grid-template-columns:repeat(2,1fr)}.rank-scale{grid-template-columns:repeat(3,1fr)}.concept-grid{grid-template-columns:1fr}}
@media(max-width:600px){.beginner-route{padding:20px}.route-steps{grid-template-columns:1fr}.rank-scale{grid-template-columns:repeat(2,1fr)}.network-prerequisite .concept-grid{grid-template-columns:1fr}.concept-panel,.network-prerequisite,.rank-panel{padding:18px}.article-body>section[id]{padding-left:16px}.tutorial-invite .btn{width:100%}}
html[data-theme=light] .support-link{color:#526f27}.instruction-steps{padding-left:24px}.instruction-steps li{padding:7px 0;line-height:1.95;color:var(--muted)}.instruction-steps li::marker{color:var(--text);font-weight:650}
.language-picker{display:flex;align-items:center;gap:4px;color:var(--text)}.language-picker select{width:auto;max-width:105px;padding:7px 20px 7px 6px;margin:0;border:1px solid var(--line);border-radius:8px;background:var(--panel);font-size:12px}.language-picker>span{font-size:18px}.translation-notice{padding:15px;background:var(--panel2);border-left:3px solid var(--accent)}.article-body div[lang]>section[id]{padding:4px 22px 20px;border-left:3px solid var(--section-accent);margin:30px 0;background:linear-gradient(90deg,var(--section-tint),transparent);border-radius:0 14px 14px 0}.article-body div[lang]>section[id] h2{padding-top:20px;margin-top:0}.payment-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.payment-card{padding:25px;background:var(--panel);border:1px solid var(--line);border-radius:22px;text-align:center}.payment-card img{max-height:440px;width:100%;object-fit:contain;border-radius:12px;display:block;margin:20px auto;background:#fff}.payment-card>div{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}.support-codes{scroll-margin-top:40px;padding:20px 0 50px}.support-codes>p{text-align:center}.header-actions{flex-shrink:0}html[lang=en] .header{gap:15px;padding-left:3%;padding-right:3%}html[lang=en] .header nav{gap:17px}html[lang=en] .brand small{max-width:180px}html[lang=en] .brand{font-size:17px}html[lang=ja] .brand{font-size:18px}html[lang=en] h1,html[lang=en] h2,html[lang=en] h3{letter-spacing:-.025em}
@media(max-width:1200px){html[lang=en] .header{flex-wrap:wrap;height:auto;padding-top:18px;padding-bottom:18px}html[lang=en] .header nav{order:3;width:100%;justify-content:center}}
@media(max-width:600px){.language-picker>span{display:none}.language-picker select{max-width:80px;padding:5px;font-size:11px}.header-actions{gap:6px}.payment-grid{grid-template-columns:1fr}.payment-card{padding:18px}html[lang=en] .brand{font-size:14px}html[lang=en] .brand small{font-size:9px}.brand small{max-width:160px}.header .support-link{display:none}.header-actions .icon-btn[data-action=search]{display:none}html[lang=en] .header nav{justify-content:flex-start;gap:20px;overflow-x:auto}.header{column-gap:6px}}

.section-emoji{display:inline-block;margin-inline-end:.4em;font-size:.95em;line-height:1;vertical-align:baseline}.header nav a{white-space:nowrap}.language-picker select{min-width:100px}.path-card.photo .path-icon{margin-bottom:12px}
/* Keep language controls on the same center line as the other header actions. */
.header .language-picker{margin:0;align-self:center;line-height:1;flex-shrink:0}
.header .language-picker select{height:34px;line-height:normal}
.header nav a{display:inline-flex;align-items:center}
.header nav .section-emoji{flex-shrink:0}
@media(min-width:1400px){
 .header,html[lang=en] .header{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:24px;padding-inline:4.5%}
 .header>.brand{justify-self:start}.header>nav{justify-self:center}.header-actions{justify-self:end}
}
@media(max-width:600px){.language-picker select{min-width:80px}}
@media(max-width:600px){.header .language-picker select{min-width:94px;max-width:94px}.header-actions{gap:4px}.header .brand{font-size:14px}}
.lesson-figure{margin:10px 0 38px;border:1px solid var(--line);border-radius:14px;background:var(--panel);overflow:hidden}.lesson-image-link{display:block;background:#111823;position:relative;padding:18px}.lesson-figure img{display:block;width:100%;max-height:640px;object-fit:contain;margin:0 auto}.image-zoom{display:block;text-align:right;margin-top:12px;color:#d5e6cb;font-size:11px}.lesson-figure figcaption{padding:18px 22px}.image-label{display:block;font-size:10px;letter-spacing:2px;color:var(--accent);margin-bottom:8px}.lesson-figure figcaption p{margin:0 0 8px;font-size:13px;line-height:1.8;color:var(--text)}.lesson-figure figcaption>a{font-size:10px;color:var(--muted);text-decoration:underline;text-underline-offset:3px}.article-body .lesson-check{padding:16px 18px;border-radius:8px;background:var(--panel2);border-left:3px solid var(--accent);color:var(--text)}.lesson-diagram{margin:20px 0 30px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px}.lesson-diagram figcaption{font-weight:650}.lesson-diagram small{display:block;color:var(--muted);font-weight:400;margin-top:4px}.lesson-diagram ol{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:12px;grid-template-columns:repeat(3,minmax(0,1fr));counter-reset:step}.lesson-diagram li{padding:16px;background:var(--panel2);border-radius:9px;line-height:1.8;font-size:12px;counter-increment:step}.lesson-diagram li:before{content:counter(step,decimal-leading-zero);display:block;color:var(--accent);font-size:18px;margin-bottom:10px}.toc{max-height:calc(100vh - 40px);overflow:auto}.article-sidebar{max-height:calc(100vh - 40px);overflow:auto}@media(max-width:600px){.lesson-image-link{padding:8px}.lesson-figure figcaption{padding:15px}.lesson-diagram ol{grid-template-columns:1fr}.lesson-figure img{max-height:500px}}
.lesson-code{max-width:100%;overflow:auto;padding:20px;border:1px solid var(--line);border-radius:12px;background:#101811;color:#dcecd2;line-height:1.8;font-size:12px;white-space:pre}
.familiar-videos{margin:50px 0 54px;padding:30px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(125deg,var(--panel),var(--bg))}.familiar-videos .section-head{margin-bottom:16px}.familiar-videos h2{font-size:clamp(22px,2.5vw,30px)}.video-platform{color:#ef95b6;font-size:10px;letter-spacing:2px;white-space:nowrap}.video-intro{max-width:800px;color:var(--text);line-height:1.9;margin-bottom:9px}.video-note{font-size:12px;line-height:1.8}.intro-video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:24px}.intro-video-card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--panel)}.video-stage{aspect-ratio:16/9;background:#18221d}.video-stage button{width:100%;height:100%;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px;background:radial-gradient(ellipse at 75% 20%,#425b39,#132922 85%);color:#ddefd3}.intro-video-card:nth-child(2) .video-stage button{background:radial-gradient(ellipse at 75% 20%,#4a395b,#1c1729 85%)}.intro-video-card:nth-child(3) .video-stage button{background:radial-gradient(ellipse at 75% 20%,#35596a,#14232d 85%)}.video-count{font-size:9px;letter-spacing:2px}.video-play{width:48px;height:48px;display:grid;place-items:center;border:1px solid #ffffff50;border-radius:50%;font-size:20px;padding-left:3px}.video-stage button>span:last-child{font-size:10px}.video-stage iframe{display:block;border:0;width:100%;height:100%}.video-copy{padding:17px}.video-copy h3{font-size:15px;letter-spacing:0;line-height:1.6;margin:0 0 8px}.video-copy p{font-size:11px;line-height:1.8}.video-copy a{font-size:11px;color:var(--accent)}.familiar-videos>.fine{margin:15px 0 0}.article-body .familiar-videos{padding:20px}.article-body .intro-video-grid{grid-template-columns:1fr}.article-body .video-stage{max-height:420px}@media(max-width:700px){.familiar-videos{padding:20px;margin-top:28px}.intro-video-grid{grid-template-columns:1fr}.video-platform{display:none}.video-copy h3{font-size:16px}}
.hero{background:#141320;min-height:660px}.hero-bg{left:31%;width:69%;object-position:50% 50%}.hero-shade{background:linear-gradient(90deg,#141320 0%,#141320 27%,rgba(20,19,32,.86) 35%,rgba(20,19,32,.08) 61%,transparent 80%),linear-gradient(0deg,rgba(15,17,24,.8),transparent 28%)}.hero-content{width:55%;padding-left:max(5%,calc((100vw - 1400px)/2));padding-top:85px}.hero h1{font-size:clamp(42px,4.8vw,72px)}.hero-content>p{max-width:450px}.hero-caption{bottom:76px;right:4%}@media(max-width:700px){.hero{min-height:0}.hero-bg{left:0;top:0;width:100%;height:310px;object-position:center}.hero-shade{background:linear-gradient(0deg,#141320 0%,#141320 54%,transparent 75%)}.hero-content{width:100%;padding:310px 24px 85px}.hero h1{font-size:40px;letter-spacing:-1px;margin-top:18px}.hero-content>p{font-size:13px}.hero-caption{display:none}.hero-kicker{font-size:10px;letter-spacing:1px}.hero-note{margin-top:24px}.hero-bottom{left:24px;right:24px;bottom:24px;font-size:8px}}
/* Quiet, shared background with readable surfaces in both appearances. */
body{isolation:isolate;background:var(--bg)}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(#111310ed,#111310df),url('/assets/chibi-background.jpg') center/cover no-repeat}
html[data-theme=light] body::before{background-image:linear-gradient(#f6f6efb3,#f6f6efba),url('/assets/chibi-background.jpg')}
.header{background:color-mix(in srgb,var(--bg) 83%,transparent);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.familiar-videos,.beginner-route,.panel,.article-card,.payment-card,.market-card,.announcement-banner,.tutorial-invite{background:color-mix(in srgb,var(--panel) 86%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 12px 36px #00000008}
.hero-bg{transform:none}
.btn,.article-card,.path-card,.market-card,.intro-video-card,.payment-card,.video-play{transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.btn:active{transform:scale(.98)}
@media(hover:hover) and (pointer:fine){.btn:hover{transform:translateY(-2px) scale(1.025);box-shadow:0 8px 24px #0002}.article-card:hover,.market-card:hover,.intro-video-card:hover{transform:translateY(-4px) scale(1.012);box-shadow:0 16px 38px #0002}.path-card:hover{transform:translateY(-4px)}.video-stage button:hover .video-play{transform:scale(1.12);background:#ffffff15}.lesson-image-link img{transition:transform .3s ease}.lesson-image-link:hover img{transform:scale(1.015)}}
/* The tutorial is a sequence: one task, explanation, picture, then a check. */
.lesson-reader{min-width:0}.lesson-goal{border:1px solid var(--line);border-left:3px solid var(--section-accent,var(--accent));border-radius:14px;padding:24px 26px;background:color-mix(in srgb,var(--panel) 93%,transparent);margin:24px 0}
.article-body .lesson-goal h2{font-size:19px;margin:0 0 12px;padding:0}.article-body .lesson-goal p{margin:0;line-height:1.95}
.lesson-progress{padding:18px 22px;margin:24px 0 30px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}.lesson-progress>div{display:flex;justify-content:space-between;gap:16px}.lesson-progress strong{font-size:13px}.lesson-progress span,.lesson-progress small{font-size:11px;color:var(--muted)}.lesson-progress progress{appearance:none;display:block;width:100%;height:4px;margin:12px 0;border:0;border-radius:8px;overflow:hidden;background:var(--panel2)}.lesson-progress progress::-webkit-progress-bar{background:var(--panel2)}.lesson-progress progress::-webkit-progress-value{background:var(--section-accent,var(--accent));transition:width .2s}.lesson-progress progress::-moz-progress-bar{background:var(--section-accent,var(--accent))}
.walk-step{scroll-margin-top:28px;position:relative;margin:0 0 28px;padding:28px;border:1px solid var(--line);border-radius:20px;background:color-mix(in srgb,var(--panel) 96%,transparent);box-shadow:0 10px 34px #00000006;overflow-wrap:anywhere}
.step-heading{display:flex;align-items:flex-start;gap:16px;margin-bottom:25px}.step-number{flex-shrink:0;display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--section-accent,var(--accent));border-radius:13px;background:var(--section-tint,var(--panel2));color:var(--section-accent,var(--accent));font-size:19px;font-weight:650}.step-heading small{font-size:9px;color:var(--muted);letter-spacing:1.6px}.article-body .step-heading h2{margin:4px 0 0;padding:0;line-height:1.5;font-size:23px;letter-spacing:-.02em}
.article-body .step-do h3,.article-body .step-why h3,.article-body .step-check h3{font-size:12px;margin:0 0 8px;letter-spacing:.6px;color:var(--section-accent,var(--accent))}.article-body .walk-step p{line-height:2;font-size:15px;letter-spacing:.015em;color:var(--text);margin:10px 0 18px}.step-do{margin:22px 0}.step-why{padding:17px 20px;background:var(--panel2);border-radius:12px;margin:18px 0}.article-body .step-why p{font-size:13px;color:var(--muted);margin:0}.step-check{padding:18px 20px;border-left:3px solid var(--section-accent,var(--accent));background:var(--section-tint,var(--panel2));border-radius:0 10px 10px 0;margin:22px 0}.article-body .step-check p{font-size:14px;margin:0}
.step-path{border:1px dashed var(--line);border-radius:10px;padding:12px 15px;background:var(--bg)}.step-path>span{font-size:10px;color:var(--muted)}.article-body .step-path p{display:flex;flex-wrap:wrap;gap:5px 10px;align-items:center;font-size:12px;margin:5px 0 0;line-height:1.8}.step-path b{color:var(--muted);font-weight:400}.step-entry{display:flex;justify-content:space-between;align-items:center;gap:18px;border:1px solid var(--section-accent,var(--accent));border-radius:10px;padding:15px 18px;background:var(--section-tint,var(--panel2));font-weight:600;font-size:13px;margin:20px 0}.step-entry:hover{background:var(--panel2)}
.step-trouble{border-top:1px solid var(--line);margin:22px 0 14px;padding-top:15px}.step-trouble summary,.lesson-more summary{cursor:pointer;font-size:13px;color:var(--muted)}.article-body .step-trouble p{font-size:13px;color:var(--muted)}.step-complete{display:inline-flex;align-items:center;gap:9px;margin:12px 10px 0 0;font-size:12px;cursor:pointer;color:var(--muted)}.step-complete input{width:18px;height:18px;accent-color:var(--section-accent,var(--accent));margin:0}.step-next{display:block;text-align:right;font-size:12px;margin-top:12px;color:var(--section-accent,var(--accent))}.walk-step.is-done{border-color:var(--section-accent,var(--accent))}.walk-step.is-done .step-complete{color:var(--text)}
.walk-step .lesson-figure{margin:24px 0}.walk-step .lesson-figure figcaption p{font-size:12px;margin:0 0 7px}.lesson-image-link{overflow:hidden}.lesson-more{padding:22px;border:1px solid var(--line);border-radius:14px;background:var(--panel);margin:30px 0}.lesson-more>summary{color:var(--text);font-weight:600}.lesson-more>summary small{display:block;font-weight:400;color:var(--muted);font-size:11px;margin:6px 0 0 15px}.lesson-more>section{margin-top:28px}.lesson-more .resource-panel{padding:16px}.toc>a{display:flex;align-items:baseline;gap:10px;font-size:11px}.toc>a>span{font-size:10px;opacity:.6}.toc>a:hover{color:var(--text)}
.editor-tools{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:18px}.editor-tools>button{border:1px solid var(--line);background:var(--panel2);border-radius:8px;padding:10px}.editor-tools>label{flex:1;min-width:180px;font-size:12px}.editor-tools select{width:100%;max-width:350px}
@media(min-width:1151px){.article-layout{grid-template-columns:155px minmax(0,790px) 170px;gap:36px;max-width:1210px}.article-sidebar{font-size:11px}.article-body>h1{font-size:38px}}
@media(max-width:700px){.walk-step{padding:20px 17px;border-radius:15px}.article-body .step-heading h2{font-size:21px}.step-heading{gap:12px}.step-number{width:36px;height:36px;font-size:15px;border-radius:10px}.article-body .walk-step p{font-size:14px}.step-why,.step-check{padding:14px}.lesson-goal{padding:20px}.lesson-progress{padding:16px}.lesson-more{padding:18px}.walk-step .lesson-figure{margin-inline:-5px}.step-path p span{max-width:100%}.lesson-progress small{line-height:1.8;display:block}body::before{background-position:65% center}.familiar-videos,.beginner-route,.panel,.article-card,.payment-card,.market-card{backdrop-filter:none;-webkit-backdrop-filter:none}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}.btn:hover,.article-card:hover,.market-card:hover,.intro-video-card:hover,.path-card:hover,.lesson-image-link:hover img{transform:none}}
.screenshot-credit{display:block;color:var(--muted);font-size:10px;margin-top:8px}
/* Enlarge the menu in the inline preview; the link still opens the complete, unaltered screenshot. */
.screenshot-frame{display:block;overflow:hidden}.screenshot-compact{aspect-ratio:.93}.screenshot-wide{aspect-ratio:1.4}.lesson-figure .screenshot-compact img,.lesson-figure .screenshot-wide img{width:100%;height:100%;max-height:none;object-fit:cover;object-position:center}.screenshot-frame img{transform:none!important}
/* Video posters stay lightweight; the player is created only after a click. */
.video-stage button{position:relative;overflow:hidden;isolation:isolate}.video-cover{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .35s ease}.video-stage button:has(.video-cover)::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#0003,#0001 45%,#0007);z-index:-1}.video-stage button:has(.video-cover){color:#fff;text-shadow:0 1px 5px #0009}.video-stage button:has(.video-cover) .video-count{position:absolute;left:14px;top:12px;padding:5px 8px;border-radius:5px;background:#10181080;letter-spacing:1px}.video-stage button:has(.video-cover) .video-play{background:#151b2399;backdrop-filter:blur(5px);border-color:#ffffffa0;width:54px;height:54px}.video-stage button:has(.video-cover)>span:last-child{position:absolute;bottom:12px}.video-stage button:hover .video-cover{transform:scale(1.045)}@media(prefers-reduced-motion:reduce){.video-stage button:hover .video-cover{transform:none}}