:root{color-scheme:light;--paper:#fafaf6;--ink:#232820;--muted:#61665c;--yellow:#ffe23d;--red:#db4e3c;--line:#d7d9cf;--radius:20px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;-webkit-font-smoothing:antialiased}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit}button{font:inherit;color:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid var(--red);outline-offset:6px}button[hidden],[hidden]{display:none!important}.skip-link{position:fixed;left:20px;top:-70px;padding:12px;background:var(--yellow);z-index:10}.skip-link:focus{top:12px}
/* Layer order: canvas, content, header. */
.site-header{position:absolute;inset:0 0 auto;z-index:3;display:flex;justify-content:space-between;align-items:center;height:82px;padding:0 max(32px,calc((100vw - 1240px)/2));gap:24px}.brand{font-family:Arial,sans-serif;font-size:32px;font-weight:900;font-style:italic;letter-spacing:-2px;text-decoration:none;line-height:1.2}.brand-dot{color:var(--red)}nav{display:flex;gap:32px;align-items:center}nav a{font-size:14px;text-decoration:none;padding:10px 0;border-bottom:1px solid transparent}nav a:hover,nav a[aria-current]{border-color:var(--ink)}nav span{margin-left:8px}
.hero{position:relative;isolation:isolate;min-height:100dvh;display:grid;place-items:center;padding:108px 24px 64px;overflow:hidden}#intro-dots{position:absolute;inset:0;width:100%;height:100%;z-index:-1}.hero-content{max-width:1000px;width:100%;text-align:center}.hero-logo{position:relative;width:min(790px,100%);height:215px;margin:0 auto 20px;overflow:hidden}.hero-logo img{position:absolute;left:0;top:50%;width:100%;height:auto;transform:translateY(-50%)}h1{font-size:clamp(44px,5.4vw,80px);font-weight:850;line-height:1.2;letter-spacing:-3.5px;margin:0 0 24px}h1 span{position:relative;display:inline-block;isolation:isolate}h1 span::after{content:"";position:absolute;left:2px;right:3px;bottom:3px;height:.22em;background:var(--yellow);z-index:-1;transform:rotate(-2deg)}.intro{font-size:18px;line-height:1.9;color:var(--muted);margin:0 0 30px}.hero-link{display:inline-flex;align-items:center;justify-content:center;gap:32px;min-height:54px;padding:14px 24px;background:var(--yellow);border:1.5px solid var(--ink);border-radius:8px;text-decoration:none;font-size:16px;font-weight:650;box-shadow:3px 3px 0 var(--ink);transition:transform .2s,box-shadow .2s}.hero-link:hover{transform:translate(-2px,-2px);box-shadow:5px 5px 0 var(--ink)}.hero-link:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ink)}
.toolbox{max-width:1160px;margin:auto;padding:82px 36px 100px;scroll-margin-top:0}.section-heading{text-align:center;margin-bottom:40px}.section-heading h2{font-size:clamp(32px,4vw,56px);line-height:1.25;letter-spacing:-2px;margin:0 0 17px;font-weight:850}.heading-and{font-family:Arial,sans-serif;font-style:italic;font-weight:500;color:#8a7830}.section-heading p{font-size:15px;color:var(--muted);line-height:1.8;margin:0}.tool-controls{display:flex;align-items:center;justify-content:space-between;margin:0 3px 38px;gap:18px}.filters{display:flex;gap:7px}.filters button{border:1px solid var(--line);border-radius:100px;background:transparent;padding:9px 20px;font-size:13px}.filters button[aria-pressed="true"]{background:var(--ink);color:var(--paper);border-color:var(--ink)}#tool-count{font-size:12px;color:var(--muted);margin:0 6px 28px;text-align:right}.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:42px 34px;padding:8px 6px 20px}.playing-card{--angle:-1.4deg;position:relative;width:100%;min-width:0;aspect-ratio:4/5;min-height:520px;transform:rotate(var(--angle));transition:transform .3s}.playing-card:nth-child(even){--angle:1.4deg}.playing-card:nth-child(3){--angle:1deg}.playing-card:nth-child(4){--angle:-1deg}.playing-card:hover{transform:rotate(0deg) translateY(-6px)}.card-inner{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .65s cubic-bezier(.22,.8,.25,1)}.playing-card.is-open .card-inner{transform:rotateY(180deg)}.card-face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border:1.5px solid #43463b;border-radius:var(--radius);overflow:hidden;box-shadow:0 18px 26px -20px #1d291c66}.card-cover{width:100%;padding:0;background:repeating-linear-gradient(45deg,transparent 0 24px,#4f49180d 24px 26px),var(--yellow);text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:36px 30px 28px}.card-cover::before{content:"";position:absolute;inset:11px;border:1.5px solid var(--ink);border-radius:11px;pointer-events:none}.cover-brand{display:grid;gap:6px;margin-top:4px;font-size:29px;font-weight:850;letter-spacing:3px;line-height:1.15}.cover-brand small{font-size:11px;letter-spacing:.5px;font-weight:500}.cover-art{width:94%;height:53%;display:flex;align-items:center;justify-content:center}.cover-art img{width:100%;height:100%;object-fit:contain}.cover-info{display:grid;gap:8px}.cover-info strong{font-size:23px;font-weight:750;line-height:1.4}.cover-info small{font-size:12px;letter-spacing:.2px;color:#4d4f32}.cover-suit{font-size:31px;line-height:1}.card-detail{text-decoration:none;background:#f5f3e9;display:flex;flex-direction:column;align-items:flex-start;padding:52px 39px 32px;text-align:left}.card-corner{position:absolute;left:20px;top:14px;display:grid;line-height:.95;text-align:center;font-family:Georgia,serif;font-size:28px;font-weight:bold}.card-corner small{font-size:19px;line-height:1.2}.card-corner.red{color:var(--red)}.corner-bottom{top:auto;left:auto;right:18px;bottom:14px;transform:rotate(180deg)}.close-card{position:absolute;right:18px;top:17px;border:0;background:transparent;text-decoration:underline;text-underline-offset:4px;color:var(--muted);font-size:12px;padding:6px}.detail-art{width:180px;max-width:65%;height:100px;object-fit:contain;margin:2px auto 25px;align-self:center}.resource-type{font-size:12px;font-weight:600;color:var(--muted);margin:0 0 10px}.resource-type .availability{margin-left:12px;padding-left:12px;border-left:1px solid #b4b6aa}.card-detail h3{font-size:clamp(24px,2.5vw,35px);line-height:1.3;letter-spacing:-1px;margin:0 0 16px;max-width:100%}.resource-description{font-size:17px;line-height:1.7;margin:0 0 18px;color:#444b40}.resource-tags{display:flex;flex-wrap:wrap;gap:13px;color:#707465;font-size:12px;margin:0 0 24px}.resource-action{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;margin-top:auto;text-decoration:none;border:0;border-top:1px solid #a4a99b;background:transparent;padding:17px 0 0;font-size:15px;font-weight:650;text-align:left}.resource-action:hover{color:#b9392b}.resource-action span{font-size:22px}.empty-note{padding:40px;text-align:center;color:var(--muted)}
footer{max-width:1240px;margin:auto;padding:28px 36px 38px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px}footer p{font-size:13px;color:var(--muted);margin:0}.back-top{font-size:12px;text-decoration:none}dialog{max-width:520px;width:calc(100% - 40px);padding:42px;border:1px solid var(--ink);border-radius:var(--radius);background:var(--paper);color:var(--ink)}dialog::backdrop{background:#17211770;backdrop-filter:blur(4px)}.dialog-close{position:absolute;right:16px;top:12px;border:0;background:transparent;font-size:30px}.dialog-state{font-size:12px;color:var(--muted);margin:0 0 12px}dialog h2{font-size:28px;margin:0 0 20px}#dialog-description{line-height:1.9;font-size:16px}.dialog-note{font-size:13px;line-height:1.8;color:var(--muted)}.dialog-return{margin-top:14px;background:var(--yellow);border:1px solid var(--ink);border-radius:8px;padding:12px 18px}
@media(prefers-reduced-motion:no-preference){.hero-content{animation:arrive .65s ease-out both}@keyframes arrive{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}}
@media(max-width:900px){.site-header{padding-inline:28px}.hero-logo{height:190px}.toolbox{padding-inline:26px}.card-grid{gap:32px 23px}.card-cover{padding:29px 22px 24px}.cover-brand{font-size:24px}.cover-info strong{font-size:19px}.card-detail{padding:48px 27px 28px}.detail-art{height:75px;margin-bottom:15px}.card-detail h3{font-size:25px}.resource-description{font-size:15px;line-height:1.65}.resource-tags{margin-bottom:15px}.resource-type{font-size:11px}.resource-type .availability{margin-left:7px;padding-left:7px}}
@media(max-width:680px){html{scroll-padding-top:20px}.site-header{height:72px;padding-inline:22px;gap:18px}.brand{font-size:29px}nav{gap:18px}nav a{font-size:12px}nav span{display:none}.hero{padding:100px 20px 56px;min-height:92dvh}.hero-logo{height:150px;width:100%;margin-bottom:25px}.hero-logo img{width:110%;max-width:none;left:-5%}h1{font-size:42px;letter-spacing:-2px;margin-bottom:23px}.intro{font-size:15px;line-height:1.9}.hero-link{min-height:50px;font-size:14px;gap:24px;padding:12px 20px}.toolbox{padding:62px 23px 65px}.section-heading{margin-bottom:28px}.section-heading h2{font-size:31px;letter-spacing:-1.5px}.section-heading p{max-width:280px;margin:auto;font-size:13px}.tool-controls{align-items:flex-start;margin-bottom:30px;gap:10px}.filters{gap:5px}.filters button{padding:8px 14px;font-size:12px}#tool-count{font-size:11px;padding-top:9px}.card-grid{grid-template-columns:1fr;max-width:420px;margin:auto;gap:32px}.card-cover{padding:32px 24px 28px}.cover-brand{font-size:27px}.cover-info strong{font-size:23px}.playing-card{min-height:540px}.card-detail{padding:49px 30px 30px}.detail-art{height:75px;margin-bottom:18px}.card-detail h3{font-size:29px}.resource-description{font-size:16px}.resource-type{font-size:12px}.resource-action{font-size:15px}footer{margin-inline:22px;padding:25px 0;flex-wrap:wrap}footer p{font-size:12px}.back-top{margin-left:auto}dialog{padding:34px 26px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.playing-card:hover{transform:rotate(var(--angle))}}
/* Real project previews share the space between the introduction and entry link. */
.playing-card{min-height:650px}.card-detail .detail-art{width:90px;height:34px;margin:0 auto 14px;flex-shrink:0}.card-detail h3{font-size:31px;margin-bottom:10px}.card-detail .resource-description{font-size:16px;line-height:1.65;margin-bottom:14px}.card-detail .resource-tags{margin-bottom:15px}.resource-preview{display:flex;flex-direction:column;width:100%;flex:1;min-height:180px;max-height:255px;padding:0;margin:0 0 15px;border:1px solid #d4d7cb;border-radius:10px;overflow:hidden;background:#fff;text-align:left;}.preview-images{display:flex;justify-content:center;gap:8px;min-height:0;flex:1;padding:8px;background:#eeeee7}.preview-images img{display:block;min-width:0;max-width:100%;height:100%;object-fit:contain}.preview-cover-studio .preview-images{gap:10px;padding:10px;background:#e9e8de}.preview-caption{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-shrink:0;padding:8px 10px;font-size:10px;line-height:1.3;color:#5d6256}.preview-caption>span{color:#333b2e}.resource-preview:hover{border-color:#79836d}.resource-flow{display:flex;flex:1;flex-direction:column;justify-content:center;gap:24px;min-height:180px;max-height:255px;width:100%;margin-bottom:15px;padding:18px 12px;background:#eceee3;border:1px solid #d4d7cb;border-radius:10px;text-align:center}.flow-heading{font-size:16px;font-weight:650}.flow-steps{display:flex;align-items:center;justify-content:center;gap:10px}.flow-steps>span{display:grid;gap:10px;font-size:12px}.flow-steps b{margin:auto;display:grid;place-items:center;width:38px;height:38px;border:1px solid #a4ac98;border-radius:50%;font-size:13px;font-weight:500}.flow-steps>span:first-child b{background:#ffe23d}.flow-steps i{font-style:normal;color:#7a846c}.resource-flow>small{font-size:10px;color:var(--muted)}
#image-dialog{width:min(1080px,calc(100% - 32px));max-width:1080px;max-height:92dvh;padding:34px;overflow:auto}#image-dialog h2{font-size:24px;padding-right:30px;margin-bottom:22px}.image-gallery{display:flex;justify-content:center;align-items:center;gap:18px;min-height:0}.image-gallery img{display:block;min-width:0;max-width:100%;max-height:65dvh;object-fit:contain}.image-gallery img:not(:only-child){max-width:calc(50% - 9px)}.image-caption{font-size:13px;line-height:1.7;color:var(--muted);margin:20px 0 0}
@media(max-width:900px){.card-detail{padding-inline:27px}.card-detail h3{font-size:25px}.card-detail .resource-description{font-size:15px}.resource-preview,.resource-flow{min-height:170px}.preview-caption{font-size:9px}.flow-steps{gap:6px}.flow-steps>span{font-size:11px}}
@media(max-width:680px){.playing-card{min-height:620px}.card-detail{padding-inline:27px}.card-detail h3{font-size:27px}.resource-preview,.resource-flow{max-height:205px;min-height:164px}.card-detail .resource-description{font-size:15px}.card-detail .resource-tags{font-size:11px;margin-bottom:12px}#image-dialog{padding:28px 18px}.image-gallery{gap:10px}.image-gallery img:not(:only-child){max-width:calc(50% - 5px)}}
/* Selected white-suit AI portrait; changes are scoped to the introduction. */
.hero-with-portrait{max-width:1200px;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);gap:clamp(30px,5vw,76px);align-items:center;text-align:left}.hero-copy{min-width:0}.hero-with-portrait .hero-logo{width:100%;height:auto;aspect-ratio:3.3;margin:0 0 26px}.hero-with-portrait .hero-logo img{width:100%;left:0}.hero-with-portrait h1{font-size:clamp(34px,4.2vw,63px);letter-spacing:-2.5px}.hero-with-portrait .intro{font-size:clamp(15px,1.3vw,18px)}.hero-portrait{position:relative;width:100%;max-width:430px;margin:0 auto}.hero-portrait::before{content:"";position:absolute;z-index:-1;inset:5% -12% 8%;background:radial-gradient(ellipse,#f4edda90 0%,#fafaf600 68%);pointer-events:none}.hero-portrait img{display:block;width:100%;height:auto}.hero-portrait figcaption{display:flex;justify-content:center;gap:14px;margin-top:6px;font-size:10px;letter-spacing:.6px;color:#747b6b}.hero-portrait figcaption span{font-weight:650;letter-spacing:2px}
@media(max-width:680px){.hero-with-portrait{grid-template-columns:minmax(0,1fr);gap:30px;text-align:center}.hero-with-portrait .hero-logo{max-width:400px;height:auto;margin:0 auto 20px}.hero-with-portrait h1{font-size:38px;letter-spacing:-2px;margin-bottom:18px}.hero-with-portrait .intro{margin-bottom:23px}.hero-portrait{max-width:300px}.hero-portrait figcaption{font-size:9px}.hero:has(.hero-with-portrait){min-height:100dvh;padding-top:92px;padding-bottom:40px}}

/* A single link covers each published card, including its preview. */
.card-signature{position:absolute;right:23px;top:23px;font-size:10px;font-weight:700;letter-spacing:1.6px;color:var(--muted)}a.card-detail:hover .resource-action{color:#b9392b}.coming-soon:hover{transform:rotate(var(--angle))}.coming-soon .resource-action{color:var(--muted);font-weight:500}