:root{--paper:#f8f5ef;--paper-deep:#eee8dd;--ink:#24211e;--muted:#726b63;--line:#d9d0c4;--red:#a54332;--red-dark:#713024;--gold:#d6a15d;--clay:#c76f4b;--blue:#657b83;--lav:#8f7e86;--shadow:0 18px 45px rgba(76,47,30,.09);--sans:Inter,"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;--serif:Georgia,"Noto Serif SC","Songti SC",serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.7}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input{font:inherit}button,a{cursor:pointer}.page-shell{width:min(1180px,calc(100% - 64px));margin-inline:auto}.site-header{height:78px;border-bottom:1px solid var(--line);background:rgba(248,245,239,.94);position:relative;z-index:5}.header-inner{height:100%;width:min(1180px,calc(100% - 64px));margin:auto;display:flex;align-items:center;gap:34px}.brand{display:flex;align-items:center;gap:12px;margin-right:auto}.brand strong{display:block;font-family:var(--serif);font-size:18px;letter-spacing:.06em}.brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:.16em;line-height:1.2;margin-top:1px}.brand-mark{width:34px;height:34px;border:1px solid var(--red);display:flex;align-items:end;justify-content:center;gap:3px;padding:6px}.brand-mark span{display:block;width:5px;background:var(--red)}.brand-mark span:nth-child(1){height:9px}.brand-mark span:nth-child(2){height:15px}.brand-mark span:nth-child(3){height:21px}.main-nav{display:flex;gap:24px;align-items:center;font-size:13px;color:#4b4540}.main-nav a{position:relative;padding:9px 0;transition:color .2s}.main-nav a:hover,.main-nav .is-active{color:var(--red)}.main-nav .is-active:after{content:"";position:absolute;left:0;right:0;bottom:1px;height:2px;background:var(--red)}.nav-more{display:inline-flex;gap:3px;align-items:center;color:var(--muted)!important}.nav-more svg{width:14px}.search-link{display:flex;align-items:center;gap:7px;color:var(--red);font-size:13px;border-left:1px solid var(--line);padding-left:26px}.search-link svg,.quiet-link svg,.text-link svg,.button svg,.row-arrow svg,.faq-list svg,.article-nav svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.menu-toggle{display:none;background:none;border:0;color:var(--red);padding:8px}.menu-toggle svg{width:23px;height:23px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round}
.editorial-hero{min-height:560px;display:grid;grid-template-columns:1.02fr .98fr;gap:80px;align-items:center;padding-block:68px 76px}.issue-line{display:flex;justify-content:space-between;border-top:1px solid var(--ink);padding-top:10px;color:var(--muted);font-size:10px;letter-spacing:.15em;max-width:520px}.kicker{color:var(--red);font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase}.hero-copy h1{font-family:var(--serif);font-size:clamp(46px,6vw,76px);line-height:1.13;font-weight:500;letter-spacing:-.03em;margin:24px 0 22px;max-width:660px}.hero-copy h1 em,.map-copy h2 em{color:var(--red);font-style:normal}.hero-lead{max-width:500px;color:var(--muted);font-size:17px;line-height:1.9;margin:0}.hero-actions{display:flex;align-items:center;gap:25px;margin-top:34px}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;border:1px solid transparent;min-height:46px;padding:0 18px;font-size:13px;transition:all .22s}.button-primary{background:var(--red);color:#fff}.button-primary:hover{background:var(--red-dark);transform:translateY(-2px)}.button-dark{background:var(--ink);color:var(--paper)}.button-dark:hover{background:var(--red)}.button-plain{border-color:var(--line)}.button-plain:hover{border-color:var(--red);color:var(--red)}.quiet-link,.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--red);font-size:13px}.text-link{font-weight:600}.text-link:hover{text-decoration:underline;text-underline-offset:4px}.hero-visual{height:390px;position:relative;background:var(--paper-deep);overflow:hidden;border:1px solid var(--line)}.hero-visual:before{content:"";position:absolute;inset:25px;border:1px solid rgba(165,67,50,.25)}.hero-visual:after{content:"";position:absolute;width:210px;height:210px;border-radius:50%;background:var(--gold);opacity:.28;top:-75px;right:-46px}.path-line{position:absolute;height:1px;background:var(--red);transform-origin:left center}.path-one{left:18%;top:68%;width:66%;transform:rotate(-27deg)}.path-two{left:23%;top:45%;width:59%;transform:rotate(31deg);background:var(--ink)}.path-three{left:27%;top:28%;width:46%;transform:rotate(-35deg);background:var(--clay)}.rung{position:absolute;height:2px;width:76px;background:var(--ink);transform:rotate(-27deg)}.rung-1{left:31%;top:60%}.rung-2{left:40%;top:52%}.rung-3{left:49%;top:44%}.rung-4{left:58%;top:36%}.rung-5{left:67%;top:28%}.visual-note{position:absolute;font-size:11px;letter-spacing:.15em;line-height:1.2;z-index:1}.visual-note small{color:var(--muted);font-size:10px;letter-spacing:0}.note-a{left:10%;bottom:11%;color:var(--red)}.note-b{right:12%;top:17%;color:var(--ink)}.note-c{right:8%;bottom:18%;color:var(--clay)}.hero-stamp{position:absolute;left:12%;top:13%;width:66px;height:66px;background:var(--red);color:#fff;border-radius:50%;display:grid;place-content:center;text-align:center;font-family:var(--serif);font-size:24px;line-height:1}.hero-stamp small{font-family:var(--sans);font-size:7px;letter-spacing:.12em;line-height:1.3;margin-top:4px}
.section-band{background:var(--paper-deep);border-block:1px solid var(--line)}.topic-grid{display:grid;grid-template-columns:270px 1fr;gap:70px;padding-block:38px}.section-label{border-right:1px solid var(--line);padding-right:40px}.label-number{font-family:var(--serif);font-size:34px;color:var(--red);display:block;line-height:1}.section-label strong{font-family:var(--serif);font-size:23px;font-weight:500;display:block;margin-top:10px}.section-label p{color:var(--muted);font-size:13px;margin:12px 0 0}.topic-links{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.topic-links a{border-bottom:1px solid var(--line);padding:9px 0 15px;display:flex;flex-direction:column;gap:4px;position:relative}.topic-links a:after{content:"";position:absolute;bottom:-1px;left:0;width:0;height:2px;background:var(--red);transition:width .22s}.topic-links a:hover:after{width:100%}.topic-links span{color:var(--red);font-size:11px}.topic-links strong{font-family:var(--serif);font-size:18px;font-weight:500}.topic-links svg{width:16px;margin-top:11px;color:var(--red);fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.feature-section,.latest-section,.related-section{padding-block:92px}.section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:28px}.section-heading h2{font-family:var(--serif);font-size:38px;font-weight:500;line-height:1.2;margin:8px 0 0}.feature-layout{display:grid;grid-template-columns:1.5fr .85fr;gap:72px}.feature-story{display:grid;grid-template-columns:1.08fr .92fr;gap:34px;align-items:center}.feature-cover,.category-lead-cover,.card-cover,.article-hero-art{background:var(--paper-deep);position:relative;overflow:hidden;display:block}.feature-cover{aspect-ratio:1.1}.feature-cover img,.category-lead-cover img,.card-cover img,.article-hero-art img{width:100%;height:100%;object-fit:cover;mix-blend-mode:multiply}.feature-cover span,.category-lead-cover span{position:absolute;left:16px;bottom:13px;color:#fff;font-size:10px;letter-spacing:.18em;text-shadow:0 1px 2px #422}.eyebrow{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:11px;letter-spacing:.04em}.eyebrow span{color:var(--red);font-weight:700}.feature-copy h3{font-family:var(--serif);font-weight:500;font-size:28px;line-height:1.35;margin:15px 0}.feature-copy p,.card-copy p{color:var(--muted);font-size:14px;line-height:1.8}.feature-copy .button{margin-top:14px}.feature-side{border-top:1px solid var(--ink)}.side-story{display:grid;grid-template-columns:42px 1fr;gap:12px;padding:21px 0;border-bottom:1px solid var(--line)}.side-number{font-family:var(--serif);color:var(--red);font-size:25px}.side-story h3{font-family:var(--serif);font-size:17px;font-weight:500;line-height:1.45;margin:5px 0 6px}.side-story h3 a:hover,.article-card h3 a:hover,.index-row h3 a:hover,.category-lead h2 a:hover{color:var(--red)}.side-story time{color:var(--muted);font-size:11px}
.reading-map{padding-block:82px}.map-layout{display:grid;grid-template-columns:1fr 1.05fr;gap:130px;align-items:start}.map-copy h2{font-family:var(--serif);font-weight:500;font-size:41px;line-height:1.25;margin:16px 0 20px}.map-copy p{max-width:440px;color:var(--muted);font-size:15px;line-height:1.9;margin-bottom:28px}.map-list{border-top:1px solid var(--ink)}.map-row{display:grid;grid-template-columns:45px 1fr 20px;align-items:center;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}.map-row:hover{color:var(--red)}.map-row svg{width:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.map-count{font-family:var(--serif);color:var(--red);font-size:23px}.map-row strong{font-family:var(--serif);font-size:19px;font-weight:500;display:block}.map-row small{display:block;color:var(--muted);font-size:12px;margin-top:2px}
.latest-grid,.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.article-card{min-width:0}.card-cover{aspect-ratio:1.34;margin-bottom:17px}.card-cover img{transition:transform .3s}.article-card:hover .card-cover img{transform:scale(1.04)}.cover-index{position:absolute;right:10px;top:10px;background:var(--paper);color:var(--red);width:30px;height:30px;display:grid;place-content:center;font-size:10px}.article-card h3{font-family:var(--serif);font-weight:500;font-size:20px;line-height:1.45;margin:9px 0 5px}.card-copy p{margin:0 0 11px;font-size:13px}.article-card .text-link{font-size:12px}.visual-intro{background:#e9d0c0}.visual-rules{background:#e7d7b8}.visual-play{background:#dec2a8}.visual-guide{background:#c4d0d1}.visual-data{background:#c9c7c1}.visual-news{background:#e6bb90}.visual-wiki{background:#d8c7cc}.visual-faq{background:#e4d7bf}.visual-history,.visual-record,.visual-structure,.visual-boundary,.visual-method,.visual-probability,.visual-timeline,.visual-questions,.visual-filter{background:#dbcbbb}
.faq-section{padding-block:75px 105px;display:grid;grid-template-columns:.78fr 1.22fr;gap:100px}.faq-intro h2{font-family:var(--serif);font-size:38px;line-height:1.2;font-weight:500;margin:13px 0}.faq-intro p{color:var(--muted);font-size:14px;max-width:310px;margin:0 0 25px}.faq-list{border-top:1px solid var(--ink)}.faq-list a{display:grid;grid-template-columns:32px 1fr 18px;gap:16px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line)}.faq-list a:hover{color:var(--red)}.faq-list span{font-family:var(--serif);color:var(--red);font-size:20px}.faq-list strong{font-family:var(--serif);font-weight:500;font-size:17px}.faq-list svg{width:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.site-footer{background:#292522;color:#f3eee7;padding:60px max(32px,calc((100% - 1180px)/2)) 22px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:60px;padding-bottom:54px}.footer-brand{display:flex;gap:15px;align-items:flex-start}.footer-mark{width:44px;height:44px;border:1px solid var(--gold);display:grid;place-content:center;color:var(--gold);font-family:var(--serif);font-size:22px}.footer-brand strong{font-family:var(--serif);font-size:21px;font-weight:500}.footer-brand p{color:#b4aaa0;font-size:12px;margin:7px 0}.site-footer h3{font-size:11px;letter-spacing:.17em;color:var(--gold);font-weight:500;margin:0 0 14px;text-transform:uppercase}.footer-links{display:grid;grid-template-columns:repeat(2,minmax(80px,1fr));gap:4px 20px}.footer-links a{color:#d4cbc2;font-size:13px}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid #4a423d;padding-top:16px;display:flex;justify-content:space-between;color:#988e85;font-size:11px}
.breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:11px}.breadcrumb a:hover{color:var(--red)}.category-intro{padding-block:65px 38px}.category-intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:end;margin-top:34px}.category-intro h1{font-family:var(--serif);font-size:62px;line-height:1.15;font-weight:500;margin:13px 0 0}.category-intro-grid p{color:var(--muted);font-size:16px;max-width:450px;margin:0}.category-stats{display:flex;gap:28px;align-items:center;border-top:1px solid var(--ink);margin-top:48px;padding-top:14px;color:var(--muted);font-size:12px}.category-stats strong{font-family:var(--serif);font-size:20px;color:var(--red);font-weight:500;margin-right:5px}.category-stats .text-link{margin-left:auto}.category-content{padding-block:44px 110px}.category-lead{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;padding-bottom:72px;border-bottom:1px solid var(--line)}.category-lead-cover{aspect-ratio:1.55}.category-lead h2{font-family:var(--serif);font-size:36px;line-height:1.3;font-weight:500;margin:14px 0}.category-lead p{color:var(--muted);max-width:430px;font-size:14px;margin:0 0 23px}.index-list{padding-top:10px}.index-row{display:grid;grid-template-columns:55px 1fr 30px;gap:20px;align-items:start;padding:27px 0;border-bottom:1px solid var(--line)}.index-number{color:var(--red);font-family:var(--serif);font-size:24px}.index-row h3{font-family:var(--serif);font-weight:500;font-size:22px;margin:6px 0}.index-row p{color:var(--muted);font-size:13px;margin:7px 0 0;max-width:690px}.row-arrow{color:var(--red);padding-top:10px}.row-arrow svg{width:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.article-top{padding-block:57px 32px;max-width:980px}.article-meta{display:flex;gap:18px;align-items:center;margin-top:37px}.article-meta time{font-size:12px;color:var(--muted)}.article-top h1{font-family:var(--serif);font-weight:500;font-size:clamp(38px,5vw,66px);line-height:1.22;max-width:860px;margin:16px 0}.article-summary{font-size:17px;color:var(--muted);max-width:760px;line-height:1.9;margin:0}.article-byline{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:11px;margin-top:26px}.byline-mark{width:24px;height:24px;border:1px solid var(--red);color:var(--red);display:grid;place-content:center;font-family:var(--serif);font-size:13px}.dot{width:3px;height:3px;background:var(--gold);border-radius:50%;margin:0 3px}.article-hero{max-width:980px}.article-hero-art{aspect-ratio:2.15}.hero-art-caption{position:absolute;left:18px;bottom:15px;color:#fff;text-shadow:0 1px 2px #422;font-size:10px;letter-spacing:.17em}.article-body-wrap{display:flex;justify-content:center}.article-body{width:min(100%,800px);padding:58px 0 10px}.article-toc{border-block:1px solid var(--line);padding:14px 0;margin-bottom:48px}.article-toc summary{list-style:none;cursor:pointer;color:var(--red);font-size:13px;display:flex;justify-content:space-between;align-items:center}.article-toc summary::-webkit-details-marker{display:none}.article-toc summary svg{width:16px;fill:none;stroke:currentColor;stroke-width:1.6}.article-toc[open] summary svg{transform:rotate(180deg)}.article-toc ol{margin:16px 0 0;padding-left:20px;color:var(--muted);font-size:13px}.article-toc li{padding:3px 0}.body-content section{margin:0 0 36px}.body-content h2{font-family:var(--serif);font-weight:500;font-size:27px;line-height:1.35;margin:0 0 12px}.body-content p{font-family:var(--serif);font-size:18px;line-height:2.05;color:#453f39;margin:0}.body-content a{color:var(--red);text-decoration:underline;text-underline-offset:3px}.key-point{border-left:3px solid var(--red);background:var(--paper-deep);padding:20px 22px;margin:45px 0}.point-mark{display:block;color:var(--red);font-size:11px;letter-spacing:.14em;margin-bottom:7px}.key-point p{font-family:var(--sans);font-size:14px;line-height:1.8}.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:30px;border-top:1px solid var(--line);padding-block:30px 75px}.article-nav a{display:flex;flex-direction:column;gap:4px;position:relative}.article-nav a:hover strong{color:var(--red)}.article-nav a.next{text-align:right;align-items:end}.article-nav small{font-size:11px;color:var(--red);letter-spacing:.12em}.article-nav strong{font-family:var(--serif);font-weight:500;font-size:18px;line-height:1.45;max-width:350px}.article-nav svg{position:absolute;right:-25px;bottom:5px}.article-nav a.next svg{right:auto;left:-25px}
.search-page{padding-block:78px 120px;min-height:640px}.search-heading h1{font-family:var(--serif);font-weight:500;font-size:56px;margin:13px 0 5px}.search-heading p{color:var(--muted);margin:0}.search-form{margin:42px 0 30px;max-width:800px}.search-form label{display:block;font-size:12px;color:var(--muted);margin-bottom:9px}.search-form>div{display:flex;border-bottom:2px solid var(--ink)}.search-form input{flex:1;background:none;border:0;padding:15px 0;font-size:19px;outline:none}.search-form button{border:0;background:none;color:var(--red);display:flex;align-items:center;gap:8px;padding:0 5px}.search-form svg{width:20px;fill:none;stroke:currentColor;stroke-width:1.7}.search-result-head{border-top:1px solid var(--line);padding-top:18px;display:flex;gap:15px;color:var(--muted);font-size:13px}.search-result-head strong{font-family:var(--serif);font-size:21px;color:var(--ink);font-weight:500}.search-results{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:26px}.search-suggestions{display:flex;gap:17px;align-items:center;margin-top:80px;border-top:1px solid var(--line);padding-top:18px;color:var(--muted);font-size:13px}.search-suggestions a{color:var(--red);border-bottom:1px solid var(--red)}.empty-state{border:1px dashed var(--line);color:var(--muted);padding:35px;text-align:center;margin-top:27px}.not-found{text-align:center;padding:130px 0 170px}.not-found-code{display:block;color:var(--red);font-family:var(--serif);font-size:110px;line-height:1}.not-found h1{font-family:var(--serif);font-weight:500;font-size:36px;margin:20px 0 8px}.not-found p{color:var(--muted);margin:0 auto 26px;max-width:420px}
@media (max-width:900px){.main-nav{gap:14px}.header-inner,.page-shell{width:min(100% - 40px,700px)}.editorial-hero{grid-template-columns:1fr;gap:40px;padding-block:48px 58px}.hero-visual{height:320px}.topic-grid,.map-layout,.faq-section{grid-template-columns:1fr;gap:28px}.section-label{border-right:0;border-bottom:1px solid var(--line);padding:0 0 20px}.topic-links{grid-template-columns:repeat(2,1fr)}.feature-layout{grid-template-columns:1fr;gap:40px}.latest-grid,.related-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.category-intro-grid,.category-lead{grid-template-columns:1fr;gap:25px}.category-intro h1{font-size:52px}.article-hero-art{aspect-ratio:1.7}.search-results{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.site-header{height:68px}.header-inner,.page-shell{width:calc(100% - 32px)}.brand strong{font-size:16px}.brand small{font-size:8px}.menu-toggle{display:block;order:2}.search-link{order:3;border-left:0;padding-left:0}.search-link span{display:none}.main-nav{display:none;position:absolute;left:16px;right:16px;top:68px;background:var(--paper);border:1px solid var(--line);padding:12px 18px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}.main-nav.is-open{display:flex}.main-nav a{padding:10px 0;border-bottom:1px solid var(--line)}.main-nav .is-active:after{display:none}.hero-copy h1{font-size:46px}.hero-lead{font-size:15px}.hero-actions{align-items:flex-start;flex-direction:column;gap:17px}.hero-visual{height:280px}.topic-links{gap:12px}.topic-links strong{font-size:16px}.feature-section,.latest-section,.related-section{padding-block:65px}.section-heading h2{font-size:32px}.section-heading{align-items:start;flex-direction:column;gap:14px}.feature-story{grid-template-columns:1fr;gap:20px}.feature-cover{aspect-ratio:1.3}.feature-copy h3{font-size:25px}.reading-map{padding-block:60px}.map-copy h2{font-size:34px}.latest-grid,.related-grid,.search-results{grid-template-columns:1fr;gap:38px}.faq-section{padding-block:60px 75px;gap:38px}.footer-grid{grid-template-columns:1fr;gap:35px;padding-bottom:35px}.footer-brand{grid-column:auto}.footer-bottom{display:block;line-height:1.8}.footer-bottom span{display:block}.footer-bottom span+span{margin-top:7px}.category-intro{padding-block:42px 28px}.category-intro h1{font-size:46px}.category-stats{gap:12px;flex-wrap:wrap}.category-stats .text-link{width:100%;margin-left:0;margin-top:4px}.category-content{padding-block:25px 75px}.category-lead{padding-bottom:45px}.category-lead h2{font-size:29px}.index-row{grid-template-columns:35px 1fr;gap:10px}.row-arrow{display:none}.index-row h3{font-size:19px}.article-top{padding-block:38px 25px}.article-top h1{font-size:40px}.article-summary{font-size:15px}.article-hero-art{aspect-ratio:1.15}.article-body{padding-top:38px}.body-content h2{font-size:24px}.body-content p{font-size:17px;line-height:1.95}.article-nav{grid-template-columns:1fr;gap:26px;padding-bottom:55px}.article-nav a.next{text-align:left;align-items:start}.article-nav svg{left:auto!important;right:0!important}.search-page{padding-block:55px 90px}.search-heading h1{font-size:45px}.search-suggestions{flex-wrap:wrap;margin-top:50px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}