:root{color-scheme:light;--bg: #f6ead4;--surface: #fff8ec;--surface-2: #ead5b5;--text: #23170f;--muted: #6e5a42;--line: #c9a87b;--primary: #161616;--primary-text: #fff8ec;--danger: #b42318}:root[data-theme=dark]{color-scheme:dark;--bg: #202124;--surface: #2d2f33;--surface-2: #3d3f45;--text: #f8f3e8;--muted: #c8bba5;--line: #5c5247;--primary: #f4d27c;--primary-text: #191919;--danger: #ff6b5f}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{width:100%;min-height:100%;margin:0}body{min-height:100vh;overflow-x:hidden;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif}button,input{font:inherit}.screen{min-height:100svh;padding:max(18px,env(safe-area-inset-top)) max(18px,env(safe-area-inset-right)) max(18px,env(safe-area-inset-bottom)) max(18px,env(safe-area-inset-left))}.home-screen{display:grid;grid-template-columns:minmax(280px,1fr) minmax(280px,420px);gap:28px;align-items:center;max-width:1120px;margin:0 auto}.home-hero h1{margin:8px 0 10px;font-size:clamp(58px,9vw,112px);line-height:.95;letter-spacing:0}.subtitle{margin:0 0 24px;color:var(--muted);font-size:clamp(22px,3.2vw,34px);font-weight:800}.eyebrow{margin:0;color:var(--muted);font-weight:800;text-transform:uppercase}.stats-row{display:flex;flex-wrap:wrap;gap:12px}.stats-row span,.skin-tags b{border:1px solid var(--line);border-radius:999px;padding:9px 14px;background:var(--surface);color:var(--muted);font-size:15px}.rank-panel{width:min(100%,430px);margin:0 0 14px;border:1px solid var(--line);border-radius:8px;padding:14px;background:var(--surface);display:grid;gap:10px}.rank-panel-main,.rank-progress-text{display:flex;align-items:baseline;justify-content:space-between;gap:14px}.rank-panel-main span,.rank-progress-text{color:var(--muted);font-weight:800}.rank-panel-main strong{font-size:clamp(26px,4vw,42px);line-height:1}.rank-progress-track{height:12px;overflow:hidden;border-radius:999px;background:var(--surface-2)}.rank-progress-track div{height:100%;border-radius:inherit;background:var(--primary)}.home-actions{display:grid;gap:14px}.version-badge{text-align:center;color:var(--muted);font-size:13px;font-weight:800;opacity:.6;padding-top:4px}.btn{min-height:58px;border:0;border-radius:8px;padding:0 22px;display:inline-flex;align-items:center;justify-content:center;gap:10px;cursor:pointer;font-size:18px;font-weight:800;color:var(--text);background:var(--surface);box-shadow:inset 0 0 0 1px var(--line)}.btn:active,.segmented button:active,.skin-card:active{transform:scale(.98)}.btn-primary{background:var(--primary);color:var(--primary-text);box-shadow:none}.btn-danger{background:var(--danger);color:#fff;box-shadow:none}.btn-ghost{min-height:48px;background:transparent}.game-screen{display:grid;place-items:center;padding:max(6px,env(safe-area-inset-top)) max(6px,env(safe-area-inset-right)) max(6px,env(safe-area-inset-bottom)) max(6px,env(safe-area-inset-left))}.game-panel{width:100%;max-width:1360px;height:calc(100svh - 12px);min-height:620px;display:grid;grid-template-columns:minmax(0,1fr) clamp(212px,26vw,252px);grid-template-rows:auto 1fr auto;gap:8px;align-items:stretch}.topbar,.setup-bar,.game-actions{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:8px}.topbar{grid-column:2;grid-row:1;display:grid;gap:8px;align-content:start}.topbar strong{display:block;font-size:20px}.topbar span{color:var(--muted)}.setup-bar{grid-column:2;grid-row:2;display:grid;gap:8px;align-content:start}.game-actions{grid-column:2;grid-row:3;display:grid;gap:8px}.commentary-bubble{grid-column:2;grid-row:2;align-self:end;margin:0 8px 8px;border:1px solid var(--line);border-radius:8px;padding:12px;background:color-mix(in srgb,var(--surface) 94%,transparent);box-shadow:0 14px 36px #00000029;opacity:0;transform:translateY(8px);transition:opacity .22s ease,transform .22s ease;pointer-events:none}.move-list-header{display:flex;align-items:center;justify-content:space-between;padding:4px 0;font-size:14px;font-weight:900;color:var(--muted)}.sgf-btn{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--muted);cursor:pointer}.sgf-btn:disabled{opacity:.4;cursor:default}.move-list{max-height:140px;overflow-y:auto;display:flex;flex-direction:column;gap:2px;font-size:13px;font-weight:700}.move-item{display:flex;align-items:center;gap:6px;padding:2px 4px;border-radius:4px}.move-item.move-last{background:var(--surface-2)}.move-num{min-width:22px;text-align:right;color:var(--muted);font-size:11px}.move-player{width:14px;text-align:center}.move-black{color:#222}.move-white{color:#999}.move-coord{font-family:Courier New,monospace}.move-empty{color:var(--muted);font-size:12px;padding:4px}.topbar-status strong{display:block;font-size:20px}.topbar-status span{color:var(--muted);font-size:13px}.timer-display{display:flex;align-items:center;justify-content:center;gap:8px;padding:8px 0}.timer-item{display:flex;flex-direction:column;align-items:center;gap:2px;padding:4px 10px;border-radius:6px;background:var(--bg);min-width:52px}.timer-item.timer-active{box-shadow:inset 0 0 0 2px var(--primary)}.timer-item.timer-expired{opacity:.4}.timer-label{font-size:11px;font-weight:900;color:var(--muted)}.timer-value{font-size:18px;font-weight:900;font-variant-numeric:tabular-nums}.commentary-bubble.is-visible{opacity:1;transform:translateY(0)}.commentary-bubble div{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px}.commentary-bubble strong{font-size:15px}.commentary-bubble span{border:1px solid var(--line);border-radius:999px;padding:3px 7px;color:var(--muted);font-size:12px;font-weight:900}.commentary-bubble p{margin:0;font-size:18px;font-weight:900;line-height:1.35}.game-screen .btn{min-height:48px;padding:0 12px}.game-screen .segmented button{min-height:40px;padding:0 8px}.board-wrap{grid-column:1;grid-row:1 / span 3;width:100%;height:100%;min-height:0;display:grid;place-items:center}.board-canvas{touch-action:none;-webkit-user-select:none;user-select:none;max-width:100%;max-height:100%;box-shadow:0 18px 48px #00000038;border-radius:16px}.segmented{display:flex;flex-wrap:wrap;gap:6px;padding:5px;background:var(--surface-2);border-radius:8px}.segmented button{min-height:46px;border:0;border-radius:6px;padding:0 16px;color:var(--text);background:transparent;font-weight:800;cursor:pointer;flex:1}.segmented button.active{background:var(--surface);box-shadow:0 1px 5px #0000001f}.page-screen{max-width:1180px;margin:0 auto}.page-header{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}.page-header h1{margin:0;font-size:38px}.skin-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(164px,1fr));gap:12px}.skin-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;color:var(--muted);font-weight:800}.skin-card{min-height:174px;border:1px solid var(--line);border-radius:8px;padding:12px;text-align:left;display:grid;gap:8px;background:var(--surface);color:var(--text);cursor:pointer}.skin-card.is-locked{opacity:.58}.skin-preview{display:flex;gap:8px;align-items:center;min-height:68px;overflow:hidden;border-radius:8px}.piece-skin-preview{justify-content:center;background:var(--surface-2)}.skin-preview img{width:100%;height:82px;object-fit:cover;border-radius:8px;background:var(--surface-2)}.board-preview img{height:98px}.board-preview{justify-content:center;background:#d6b8816b}.board-preview-canvas{display:block;width:154px;height:92px;border-radius:8px}.skin-card strong{font-size:18px}.skin-card small{color:var(--muted);font-weight:800;line-height:1.25}.skin-card span{color:var(--muted);font-size:14px;line-height:1.35}.unlock-text{display:inline-flex;align-items:center;gap:5px}.skin-tags{display:flex;flex-wrap:wrap;gap:6px}.skin-tags b{padding:5px 9px;font-size:12px}.settings-screen{max-width:760px}.settings-list{display:grid;gap:12px}.settings-group{display:grid;gap:12px;border:1px solid var(--line);border-radius:8px;padding:14px;background:color-mix(in srgb,var(--surface) 70%,transparent)}.settings-group h2{margin:0;font-size:24px}.setting-row{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px;border:1px solid var(--line);border-radius:8px;background:var(--surface);font-size:20px;font-weight:800}.setting-field{display:grid;gap:10px;padding:16px;border:1px solid var(--line);border-radius:8px;background:var(--surface);font-size:18px;font-weight:800}.setting-field input{min-height:52px;width:100%;border:1px solid var(--line);border-radius:8px;padding:0 14px;background:var(--bg);color:var(--text);font-size:17px}.setting-field small{color:var(--muted);font-size:14px;font-weight:700;line-height:1.45}.ai-test-row{align-items:flex-start}.api-test-message{margin:0;border:1px solid var(--line);border-radius:8px;padding:12px 14px;background:var(--surface);color:var(--muted);font-weight:800}.api-test-message.success{color:#17803b}.api-test-message.error{color:var(--danger)}.version-card{display:grid;gap:10px;border:1px solid var(--line);border-radius:8px;padding:16px;background:var(--surface)}.version-card strong{font-size:20px}.version-card ul{margin:0;padding-left:20px;color:var(--muted);font-size:15px;font-weight:800;line-height:1.55}.setting-row input[type=checkbox]{width:34px;height:34px;accent-color:var(--primary)}.confirm-actions{display:flex;flex-wrap:wrap;gap:8px}@media (max-width: 900px){.home-screen{grid-template-columns:1fr;align-content:center}.game-panel{height:auto;min-height:calc(100svh - 20px);grid-template-columns:1fr;grid-template-rows:auto auto minmax(320px,auto) auto}.topbar,.setup-bar,.commentary-bubble,.board-wrap,.game-actions{grid-column:1;grid-row:auto}.commentary-bubble{align-self:auto;margin:0}.board-wrap{aspect-ratio:1;max-height:76svh}.game-actions{grid-template-columns:1fr 1fr}.page-header{align-items:stretch;flex-direction:column}.move-list-header{display:flex;align-items:center;justify-content:space-between;padding:4px 0;font-size:14px;font-weight:900;color:var(--muted)}.sgf-btn{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--muted);cursor:pointer}.sgf-btn:disabled{opacity:.4;cursor:default}.move-list{max-height:140px;overflow-y:auto;display:flex;flex-direction:column;gap:2px;font-size:13px;font-weight:700}.move-item{display:flex;align-items:center;gap:6px;padding:2px 4px;border-radius:4px}.move-item.move-last{background:var(--surface-2)}.move-num{min-width:22px;text-align:right;color:var(--muted);font-size:11px}.move-player{width:14px;text-align:center}.move-black{color:#222}.move-white{color:#999}.move-coord{font-family:Courier New,monospace}.move-empty{color:var(--muted);font-size:12px;padding:4px}.topbar-status strong{display:block;font-size:20px}.topbar-status span{color:var(--muted);font-size:13px}.timer-display{display:flex;align-items:center;justify-content:center;gap:8px;padding:8px 0}.timer-item{display:flex;flex-direction:column;align-items:center;gap:2px;padding:4px 10px;border-radius:6px;background:var(--bg);min-width:52px}.timer-item.timer-active{box-shadow:inset 0 0 0 2px var(--primary)}.timer-item.timer-expired{opacity:.4}.timer-label{font-size:11px;font-weight:900;color:var(--muted)}.timer-value{font-size:18px;font-weight:900;font-variant-numeric:tabular-nums}}@media (max-width: 560px){.screen{padding:12px}.btn{min-height:54px;font-size:16px}.skin-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.skin-card{min-height:168px}}