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(min-width:768px){.section-title{font-size:1.6rem}}.section-subtitle{color:var(--muted);margin:-6px 0 18px;font-size:1rem;line-height:1.6}.prose p{color:#5d4037;margin-bottom:14px;font-size:1.05rem;line-height:1.85}.prose .section-title{margin-top:28px}.prose strong{color:var(--ink);font-weight:700}.static-h1{text-align:left;margin-bottom:8px;font-size:1.8rem}.static-updated{color:var(--muted);margin:0 0 18px;font-size:.85rem}.static-back{margin-top:28px}.static-inline-link{color:var(--brown);text-underline-offset:2px;font-weight:700;text-decoration:underline}.static-code,.static-inline-link:hover{color:var(--ink)}.static-code{border:1px solid var(--line-soft);background:#fdf6ea;border-radius:6px;padding:2px 6px;font-size:.9em}.dot-list{flex-direction:column;gap:12px;margin:6px 0 14px;list-style:none;display:flex}.dot-list li{color:#5d4037;padding-left:18px;font-size:1.02rem;line-height:1.75;position:relative}.dot-list 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1fr}}.piece-card{border:1px solid var(--line-soft);border-radius:12px;padding:16px;transition:background .2s}.piece-card:hover{background:#fffaf0}.piece-head{gap:12px;margin-bottom:10px}.piece-head,.piece-kanji{align-items:center;display:flex}.piece-kanji{color:#fff;background:#d4a96a;border-radius:9px;flex-shrink:0;justify-content:center;width:38px;height:38px;font-family:serif;font-size:1.15rem;font-weight:700;box-shadow:0 1px 3px #00000026}.piece-name{color:var(--ink);font-size:1.05rem;font-weight:700}.piece-move{color:#5d4037;font-size:.98rem;line-height:1.6}.piece-note{color:var(--brown);background:#fdf6ea;border-radius:6px;margin-top:10px;padding:6px 10px;font-size:.9rem;line-height:1.5}.step-list{flex-direction:column;gap:22px;display:flex}.step{gap:16px;display:flex}.step-num{background:var(--brown);color:#fff;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-size:.95rem;font-weight:700;display:flex}.step-h{color:var(--ink);margin-bottom:6px;font-size:1.08rem;font-weight:700}.step p{color:#5d4037;font-size:1rem;line-height:1.7}.strategy-grid{grid-template-columns:1fr;gap:14px;margin-bottom:18px;display:grid}@media (min-width:768px){.strategy-grid{grid-template-columns:1fr 1fr}}.strategy-card{border:1px solid var(--line-soft);border-radius:12px;padding:18px;transition:background .2s}.strategy-card:hover{background:#fffaf0}.strategy-head{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px;display:flex}.strategy-head h5{color:var(--ink);font-size:1.05rem;font-weight:700}.tag{color:#fff;background:#d4a96a;border-radius:999px;padding:2px 10px;font-size:.8rem}.strategy-card p{color:#5d4037;font-size:.98rem;line-height:1.65}.pwa-grid{grid-template-columns:1fr;gap:18px;display:grid}@media (min-width:768px){.pwa-grid{grid-template-columns:1fr 1fr}}.pwa-card{border:1px solid var(--line-soft);border-radius:12px;padding:18px}.pwa-h{color:var(--ink);align-items:center;margin-bottom:12px;font-size:1.08rem;font-weight:700}.num-list,.pwa-h{gap:8px;display:flex}.num-list{flex-direction:column;padding-left:20px}.num-list li{color:#5d4037;font-size:.98rem;line-height:1.6}.faq-list{flex-direction:column;display:flex}.faq-item{border-bottom:1px solid var(--line-soft)}.faq-item:last-child{border-bottom:none}.faq-q{cursor:pointer;color:var(--ink);justify-content:space-between;align-items:center;gap:12px;padding:16px 0;font-size:1.05rem;font-weight:700;list-style:none;display:flex}.faq-q::-webkit-details-marker{display:none}.faq-q:after{content:"+";color:var(--brown);flex-shrink:0;font-size:1.3rem}details[open] .faq-q:after{content:"−"}.faq-a{color:#5d4037;padding:0 0 16px;font-size:1rem;line-height:1.75}.term-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}@media (min-width:640px){.term-grid{grid-template-columns:repeat(3,1fr)}}@media (min-width:1024px){.term-grid{grid-template-columns:repeat(4,1fr)}}.term{border:1px solid var(--line-soft);border-radius:10px;flex-direction:column;gap:2px;padding:12px;display:flex}.term-zh{color:var(--ink);font-size:1rem;font-weight:700}.term-jp{color:var(--brown);font-family:monospace;font-size:.82rem}.site-footer{background:var(--ink);color:var(--line);padding:40px 16px;padding-bottom:calc(40px + var(--tabbar-h) + env(safe-area-inset-bottom,0px))}@media (min-width:1024px){.site-footer{padding-bottom:40px}}.footer-inner{text-align:center;flex-direction:column;gap:14px;max-width:880px;margin:0 auto}.footer-inner,.footer-logo{align-items:center;display:flex}.footer-logo{color:#fff;gap:10px;font-size:1.15rem;font-weight:700}.footer-logo .logo-img{border-radius:6px}.footer-desc{color:#ffffff8c;max-width:640px;font-size:.98rem;line-height:1.7}.footer-meta{color:#fff6;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px 18px;font-size:.9rem;display:flex}.footer-link{color:#ffffff8c;text-decoration:none;transition:color .2s}.footer-link:hover{color:#fff}.back-to-top{right:18px;bottom:calc(var(--tabbar-h) + 10px + env(safe-area-inset-bottom,0px));width:44px;height:44px;color:var(--brown);border:1px solid var(--line);cursor:pointer;z-index:60;opacity:0;visibility:hidden;background:#fff;border-radius:50%;justify-content:center;align-items:center;transition:all .3s;display:flex;position:fixed;box-shadow:0 4px 12px #00000024}@media (min-width:1024px){.back-to-top{bottom:28px;right:28px}}.back-to-top.show{opacity:1;visibility:visible}.back-to-top:hover{background:var(--bg);transform:translateY(-3px)}.mobile-tabbar{z-index:40;height:calc(var(--tabbar-h) + env(safe-area-inset-bottom,0px));padding-bottom:env(safe-area-inset-bottom,0);border-top:1px solid var(--line);box-sizing:border-box;background:#fff;justify-content:space-around;align-items:center;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -2px 10px #0000000d}@media (min-width:1024px){.mobile-tabbar{display:none}}.tab-btn{height:var(--tabbar-h);min-height:var(--tabbar-h);cursor:pointer;color:var(--muted);-webkit-tap-highlight-color:transparent;background:0 0;border:none;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:3px;font-size:.78rem;font-weight:500;text-decoration:none;display:flex}.tab-btn svg{flex-shrink:0;display:block}.tab-btn.active{color:var(--brown)}.drawer-overlay{z-index:80;background:#3e272373;position:fixed;inset:0}.mobile-drawer{z-index:90;background:#fff;border-radius:18px 18px 0 0;flex-direction:column;height:78dvh;transition:transform .3s cubic-bezier(.16,1,.3,1);display:flex;position:fixed;bottom:0;left:0;right:0;transform:translateY(100%);box-shadow:0 -4px 30px #0000002e}.mobile-drawer[data-open=true]{transform:translateY(0)}.drawer-handle{background:var(--line);border-radius:3px;width:44px;height:5px;margin:10px auto 4px}.drawer-header{border-bottom:1px solid var(--line-soft);justify-content:space-between;align-items:center;padding:6px 18px 12px;display:flex}.drawer-title{color:var(--ink);font-size:1.1rem;font-weight:700}.drawer-close{background:var(--bg);cursor:pointer;width:30px;height:30px;color:var(--muted);border:none;border-radius:50%;font-size:.9rem}.drawer-body{flex-direction:column;flex:1;gap:14px;padding:16px;display:flex;overflow-y:auto}.dialog-mask{z-index:100;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#3e272380;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.dialog-mask[hidden]{display:none}.dialog-box{text-align:center;background:#fff;border-radius:20px;width:100%;max-width:360px;padding:30px 26px;box-shadow:0 20px 60px #0000004d}.dialog-msg{color:var(--ink);margin-bottom:8px;font-size:1.4rem;font-weight:700}.dialog-tip{color:var(--muted);margin-bottom:20px;font-size:.95rem}.dialog-btns{flex-direction:column;gap:10px;display:flex}.dialog-btns .btn{padding:13px;font-size:1rem}@media (max-width:1023px){.header-inner{gap:8px;height:52px;padding:0 12px}.logo{flex:auto;gap:8px;min-width:0}.logo-img{border-radius:7px;flex-shrink:0;width:28px;height:28px}.logo-text{white-space:nowrap;text-overflow:ellipsis;font-size:1.05rem;overflow:hidden}.header-tools{flex-shrink:0;gap:8px}.sgb-pwa-chip>span>button:first-of-type{width:40px;height:40px}.game-stage{gap:6px;padding:6px 10px 4px}.board-status{padding:4px 10px;font-size:.88rem}.komadai{min-height:36px;padding:3px 8px}.komadai-label{font-size:.82rem}.article-container{padding-bottom:calc(24px + var(--tabbar-h) + env(safe-area-inset-bottom,0px))}.pwa-guide-card{width:min(20.5rem,100vw - 1.25rem)}.pwa-guide-btn-ghost,.pwa-guide-btn-primary{min-height:44px}}@media (max-width:400px){.logo-text{font-size:.98rem}.game-stage{gap:5px;padding:6px 8px}.game-main{--game-content-w:calc(100vw - 20px)}.ad-slot:not(:empty){max-width:calc(100vw - 20px)}}body,html{min-height:100%;margin:0}[data-theme=sgb].sgb-root{min-height:100vh}@property --tw-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-y{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-z{syntax:"*";inherits:false;initial-value:0}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}