:root{--room:#f4e8d3;--paper:#fff8ec;--ink:#493a2d;--wood:#d4aa75;--lip:#af794c;--recess:#e1cbb0;--teal:#267c77;--slot:#f8ecd6;--slot-edge:#9d7952;font-family:Arial,"Microsoft YaHei","Noto Sans CJK SC",sans-serif;color:var(--ink);font-synthesis:none}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;background:var(--room)}body{font-size:14px}button{font:inherit;color:inherit}button:focus-visible{outline:2px dotted var(--teal);outline-offset:2px}.study{position:relative;width:100vw;height:100vh;min-width:320px;min-height:360px;background:linear-gradient(180deg,#f8efdf 0,#f4e8d3 68%,#e7d4b5 100%)}.study::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 49.8%,#d5c09b22 50%,transparent 50.2%);background-size:160px 100%;pointer-events:none}.platform-reserve{position:absolute;z-index:50;top:0;right:0;width:64px;height:64px;display:grid;place-items:start end;padding:8px;pointer-events:none}.platform-button{width:44px;height:44px;display:grid;place-items:center;background:#fff8ecd9;border:1px solid #c8b291;border-radius:15px;box-shadow:0 2px 0 #94744720}.platform-button svg{width:20px;height:20px}.hud{position:absolute;top:8px;left:8px;right:72px;height:56px}.pause-button{position:absolute;left:0;top:0;width:44px;height:44px;padding:11px;border:1px solid #c6a47c;border-radius:14px;background:var(--paper);box-shadow:0 2px 0 #ac85552c}.pause-button svg{width:20px;height:20px}.level{position:absolute;left:56px;top:4px;font-size:14px;line-height:20px;font-weight:700;white-space:nowrap}.timer{position:absolute;right:0;top:0;display:flex;align-items:center;gap:4px;font-size:21px;font-weight:700;line-height:28px;font-variant-numeric:tabular-nums}.timer svg{width:18px;height:18px}.timer.urgent{color:#b94538}.objective{position:absolute;left:56px;top:27px;font-size:13px;line-height:17px;white-space:nowrap}.progress{position:absolute;left:56px;right:0;bottom:0;height:5px;border-radius:5px;background:#d7c4a4;box-shadow:inset 0 1px 1px #8b6d4433}.progress span{display:block;width:36%;height:100%;border-radius:inherit;background:var(--teal)}.board{position:absolute;top:72px;left:8px;right:8px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:54px;gap:2px 8px}.shelf{position:relative;min-width:0;height:54px;background:linear-gradient(180deg,#ddc3a0,#e5ceb0 66%,#d1af81);border:1px solid #b98a59;border-radius:5px 5px 3px 3px;box-shadow:inset 2px 0 0 #efd6ad,inset -2px 0 0 #ba8b58,0 1px 0 #a7774655}.shelf::before{content:"";position:absolute;inset:2px 5px 6px;background:linear-gradient(180deg,#caa27377,transparent 48%);border-top:1px solid #b58b5b50;pointer-events:none}.shelf::after{content:"";position:absolute;z-index:8;bottom:-1px;left:-1px;right:-1px;height:4px;background:linear-gradient(#d6ae79 0 1px,#b47f4e 1px 3px,#98633c 3px);border-radius:0 0 3px 3px;pointer-events:none}.cells{position:absolute;left:50%;top:6px;transform:translateX(-50%);display:flex;gap:2px}.slot{position:relative;width:44px;height:44px;flex:none}.slot::before{content:"";position:absolute;z-index:2;left:2px;right:2px;bottom:3px;height:9px;background:var(--slot);border:1px solid var(--slot-edge);border-radius:50%;box-shadow:0 2px 0 #bd986849}.slot.empty::after{content:"";position:absolute;z-index:4;left:4px;right:4px;bottom:3px;height:4px;border:solid #9d7952;border-width:0 1px 1px;border-radius:0 0 14px 14px}.good{position:absolute;z-index:3;width:44px;height:44px;left:0;top:0;display:block;object-fit:contain}.rear{z-index:1;left:3.08px;top:-7px;width:37.84px;height:37.84px}.slot.selected::after,.slot.drop::after{content:"";position:absolute;inset:0;z-index:6;border:2px solid var(--teal);border-radius:8px;background:linear-gradient(90deg,transparent 38%,#267c770a 50%,transparent 62%);pointer-events:none}.slot.drop::before{background:#cfe4d6;border-color:var(--teal);box-shadow:0 2px 0 #267c7755}.slot.selected .good{transform:translateY(-2px)}.shelf.locked{background:repeating-linear-gradient(0deg,#ab8258 0 9px,#c39d72 9px 10px,#96704c 10px 11px);box-shadow:inset 3px 0 0 #d2b58e,inset -3px 0 0 #98704b}.lock-icon{position:absolute;left:calc(50% - 9px);top:3px;width:18px;height:18px;filter:drop-shadow(0 1px 0 #f7e6c8)}.lock-label{position:absolute;bottom:7px;left:4px;right:4px;line-height:18px;font-size:13px;text-align:center;font-weight:700;background:#fff8eced;border:1px solid #826244;border-radius:4px;white-space:nowrap}.shelf.blocked{background:#b58d65}.cross{position:absolute;inset:6px 5px 7px;width:calc(100% - 10px);height:calc(100% - 13px)}.toolbar{position:absolute;bottom:8px;left:8px;right:8px;height:44px;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.tool{position:relative;height:44px;border:1px solid #b89a73;border-radius:11px;background:#fff8ec;box-shadow:0 2px 0 #ac855530;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;padding:1px 2px}.tool svg{width:20px;height:20px}.tool-label{font-size:13px;line-height:16px;white-space:nowrap}.tool .badge{position:absolute;top:2px;left:calc(50% + 10px);font-size:11px;font-weight:700;line-height:15px;min-width:16px;border-radius:8px;background:#e2ede0;color:#315f36;padding:0 4px;border:1px solid #96b98b}.reason{position:absolute;left:8px;right:8px;bottom:54px;height:16px;text-align:center;font-size:13px;line-height:16px;color:#66503b;white-space:nowrap}.intro{position:absolute;left:20px;right:20px;top:221px;text-align:center}.intro-mark{display:grid;place-items:center;width:44px;height:44px;margin:0 auto 13px;background:#fff8eca8;border:1px solid #d4bb97;border-radius:50%}.intro-mark svg{width:28px;height:28px;color:var(--teal)}.intro p{margin:0;font-size:14px;line-height:22px}.intro .subtle{margin-top:8px;width:30px;height:3px;background:#cba97a;border-radius:3px;display:inline-block}.initial .progress span{width:0}.initial .toolbar,.initial .reason{display:none}.modal-shade{position:absolute;z-index:20;inset:64px 0 0;background:#6047284d}.modal-zone{position:absolute;z-index:21;top:72px;bottom:8px;left:8px;right:8px;display:flex;align-items:center;justify-content:center}.panel{position:relative;width:100%;max-width:420px;padding:18px;background:var(--paper);border:1px solid #b99668;border-radius:19px;box-shadow:0 4px 0 #86623c2b,0 12px 24px #58402020}.panel h1{font-size:22px;line-height:26px;margin:0;font-weight:700;letter-spacing:-.4px}.panel p{font-size:14px;line-height:20px;margin:8px 0 0}.panel .eyebrow{font-size:13px;color:#766148;margin:0 0 5px;line-height:18px;font-weight:700}.panel-head{margin-bottom:16px}.reward-card{display:flex;align-items:center;justify-content:center;gap:14px;min-height:56px;background:#f0e2c8;border:1px solid #d7bd94;border-radius:12px;margin-bottom:12px;padding:7px 10px}.reward-card>svg{width:40px;height:40px;color:var(--teal)}.reward-card strong{font-size:21px;line-height:26px}.reward-card small{display:block;font-size:13px;line-height:18px;color:#68523d}.action{width:100%;min-height:44px;display:flex;align-items:center;justify-content:center;gap:8px;padding:10px 8px;background:#fff8ec;border:1px solid #b99870;border-radius:11px;font-size:14px;line-height:20px;font-weight:700;text-align:center}.action+.action{margin-top:8px}.action svg{width:20px;height:20px;flex:none}.action.primary{background:var(--teal);color:#fffaf0;border-color:#1d615d;box-shadow:0 2px 0 #164f4a}.action.subtle{background:#f2e7d4}.panel .actions-row{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:8px 0}.actions-row .action{margin:0}.panel .fine{font-size:13px;line-height:18px;text-align:center;margin-top:10px;color:#765c42}.mini-reward{position:relative;width:100px;min-width:100px;height:42px;display:flex;align-items:flex-end;justify-content:center;gap:1px;border-bottom:4px solid #b47f4e;background:linear-gradient(transparent 48%,#e1cbb0 48%)}.mini-reward img{width:29px;height:29px;object-fit:contain;margin-bottom:2px}.mini-reward svg{position:absolute;top:-3px;right:-8px;width:20px;height:20px;background:var(--paper);border:1px solid #bda57f;border-radius:5px;color:var(--teal)}.hint-reward{width:88px;min-width:88px;display:flex;align-items:center;gap:5px}.hint-reward img{width:34px;height:34px}.hint-reward svg{width:18px;height:18px;color:var(--teal)}.hint-target{width:28px;height:30px;background:#d4e7d8;border:2px solid var(--teal);border-radius:5px}.collection-panel{height:100%;max-height:710px;display:flex;flex-direction:column;padding:16px;gap:12px}.collection-heading{position:relative;flex:none;min-height:48px;padding-right:48px}.collection-heading h1{font-size:21px;line-height:26px}.collection-heading p{font-size:13px;line-height:18px;margin:4px 0 0}.close-button{position:absolute;right:-4px;top:-4px;width:44px;height:44px;display:grid;place-items:center;padding:10px;border:1px solid #c4a276;border-radius:12px;background:#f3e6ce}.close-button svg{width:21px;height:21px}.collection-scroll{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#b99a70 #e8d8ba;padding:2px 5px 3px 0}.collection-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.collection-item{min-width:0;min-height:92px;border:1px solid #d2b994;background:#f8eedb;border-radius:9px;display:flex;flex-direction:column;align-items:center;justify-content:start;padding:7px 3px 5px;gap:4px}.collection-item img{width:44px;height:44px}.collection-item .name{font-size:13px;line-height:16px;text-align:center;overflow-wrap:normal;word-break:normal}.collection-item.unseen{justify-content:center;background:#e7d7bb;border:1px solid #cbb38d}.unseen-mark{width:28px;height:30px;border:1px solid #b69b71;border-radius:6px;box-shadow:inset 0 2px 0 #f3e6cc;background:#dfcba9}.collection-panel>.action{flex:none}.home-emblem{width:100%;display:flex;justify-content:center;gap:8px;margin:5px 0 18px;padding-bottom:6px;background:linear-gradient(transparent calc(100% - 6px),#b47f4e calc(100% - 6px));border-radius:0 0 4px 4px}.home-emblem img{width:44px;height:44px}.home-panel .panel-head{text-align:center}.home-stats{display:flex;justify-content:space-between;gap:8px;border-top:1px solid #dbc4a1;margin-top:14px;padding-top:10px;font-size:13px;line-height:18px}.end-emblem{width:44px;height:44px;display:grid;place-items:center;border-radius:50%;background:#e1ebd8;color:#568d55;margin:0 auto 12px}.end-emblem svg{width:25px;height:25px}.end-panel{text-align:center}.passive .hud,.passive .board,.passive .toolbar,.passive .reason{pointer-events:none}.passive .toolbar{opacity:.65}
@media (min-height:560px) and (max-aspect-ratio:3/2){.hud{left:16px;right:80px;top:16px}.board{top:calc(90px + (100vh - 560px)*.19);left:16px;right:16px;grid-auto-rows:66px;gap:12px 12px}.shelf{height:66px}.cells{top:16px;gap:6px}.shelf::after{height:5px}.lock-icon{top:10px;width:21px;height:21px;left:calc(50% - 10.5px)}.lock-label{bottom:8px}.toolbar{left:16px;right:16px;bottom:24px;height:52px;gap:12px}.tool{height:52px;gap:3px}.tool-label{font-size:14px;line-height:18px}.tool .badge{top:5px}.reason{bottom:86px;left:16px;right:16px;font-size:14px;line-height:20px;height:20px}.intro{top:calc(285px + (100vh - 560px)*.26)}.intro p{font-size:16px;line-height:26px}.intro-mark{width:56px;height:56px;margin-bottom:18px}.intro-mark svg{width:32px;height:32px}.modal-zone{left:16px;right:16px;bottom:24px;top:88px}.modal-shade{top:72px}.panel{padding:22px}.collection-panel{padding:18px}.collection-item{min-height:102px;padding-top:12px}.collection-item .name{font-size:14px;line-height:18px}.collection-grid{gap:9px}.reward-card{margin-bottom:16px;min-height:68px}}
@media (min-width:640px) and (min-aspect-ratio:3/2){.hud{left:16px;right:calc(100% - 306px);top:12px}.board{top:76px;left:16px;right:232px;grid-template-columns:repeat(3,minmax(0,1fr));grid-auto-rows:54px;gap:8px 10px}.cells{gap:4px}.toolbar{left:auto;right:16px;top:124px;bottom:auto;width:192px;height:auto;grid-template-columns:1fr;gap:8px}.tool{height:44px;flex-direction:row;gap:10px;justify-content:flex-start;padding:9px 13px}.tool-label{font-size:14px;line-height:20px}.tool .badge{left:auto;right:12px;top:13px}.reason{left:auto;right:16px;width:192px;top:289px;bottom:auto;white-space:normal;height:auto;font-size:13px;line-height:18px}.intro{left:32px;right:248px;top:174px}.intro-mark{width:44px;height:44px;margin-bottom:10px}.intro p{font-size:15px;line-height:23px}.modal-zone{left:16px;right:16px;top:72px;bottom:10px}.panel{padding:16px;max-width:440px}.panel-head{margin-bottom:12px}.panel h1{font-size:21px;line-height:25px}.reward-card{min-height:48px;margin-bottom:10px}.panel .fine{margin-top:8px}.collection-panel{max-width:680px;flex-direction:column;gap:8px}.collection-heading{min-height:46px}.collection-grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:7px}.collection-item{min-height:90px}.collection-panel>.action{width:210px;align-self:center}.home-emblem{margin-bottom:12px}.home-stats{margin-top:10px;padding-top:8px}.end-emblem{margin-bottom:8px}}
@media (min-height:560px) and (max-aspect-ratio:3/2){.board{row-gap:clamp(8px,calc(8px + (100vh - 560px)*.014085),12px)}}
@media (min-height:560px) and (max-width:360px){.board{left:8px;right:8px;column-gap:8px}.cells{gap:2px}}
@media (min-aspect-ratio:3/2) and (max-width:639px){.hud{left:8px;right:calc(100% - 290px);top:8px}.board{top:72px;left:8px;right:176px;grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:54px;gap:2px 8px}.shelf{height:54px}.cells{top:6px;gap:2px}.toolbar{left:auto;right:8px;top:116px;bottom:auto;width:152px;height:auto;grid-template-columns:1fr;gap:8px}.tool{height:44px;flex-direction:row;gap:8px;justify-content:flex-start;padding:9px 11px}.tool-label{font-size:14px;line-height:20px}.tool .badge{left:auto;right:9px;top:13px}.reason{left:auto;right:8px;width:152px;top:281px;bottom:auto;white-space:normal;height:auto;font-size:13px;line-height:18px}.intro{left:16px;right:184px;top:221px}.intro p{font-size:14px;line-height:22px}.intro-mark{width:44px;height:44px;margin-bottom:10px}.modal-zone{top:72px;bottom:8px;left:8px;right:8px}.panel{padding:16px}}
@media (min-width:640px) and (max-width:739px) and (min-aspect-ratio:3/2){.board{right:calc(176px + (100vw - 640px)*.56)}.cells{gap:2px}.toolbar,.reason{width:calc(136px + (100vw - 640px)*.56)}}
.slot.drop::after{top:auto;bottom:0;left:0;right:0;height:14px;border-width:0 2px 2px;border-radius:0 0 8px 8px;background:none}
.lock-label{font-weight:400}.tool .badge{font-size:13px;line-height:16px;min-width:18px}
@media (max-aspect-ratio:1/1){.home-panel{--home-top:72px;height:100%;max-height:none}.home-panel .panel-head{position:absolute;top:18px;left:18px;right:18px;margin:0}.home-panel .home-emblem{position:absolute;top:calc(45vh - var(--home-top) - 27px);left:18px;right:18px;width:auto;height:54px;margin:0}.home-panel .home-emblem img{width:48px;height:48px}.home-panel>.action.primary{position:absolute;top:calc(75vh - var(--home-top) - 22px);left:18px;right:18px;width:auto;height:44px}.home-panel .home-stats{position:absolute;top:calc(75vh - var(--home-top) - 74px);left:18px;right:18px;margin:0;padding-top:10px}.home-panel .actions-row{position:absolute;bottom:14px;left:18px;right:18px;margin:0;padding-top:8px;border-top:1px solid #dac2a0}.home-panel .actions-row .action{background:none;border:0;box-shadow:none;min-height:44px;padding:2px;display:flex;flex-direction:column;gap:2px;font-size:13px;line-height:18px}}
@media (min-height:560px) and (max-aspect-ratio:1/1){.home-panel{--home-top:88px}.home-panel .home-emblem{top:calc(45vh - var(--home-top) - 39px);height:78px}.home-panel .home-emblem img{width:64px;height:64px}.home-panel .panel-head{top:22px}}
.depth-mark{position:absolute;z-index:10;bottom:-1px;left:50%;transform:translateX(-50%);height:3px;display:flex;gap:2px;background:#fff8ec}.depth-mark>i{display:block;width:5px;height:3px;background:#493a2d;flex:none}

/* T1b bounded static-state extensions; sealed geometry above unchanged. */
.study[data-state="hint-learned"] .intro p,.study[data-state="level-clear"] .intro p{white-space:pre-line}
.study[data-state="hint-learned"] .toolbar,.study[data-state="level-clear"] .toolbar{display:grid}
.tool.new-tool,.tool.tool-ready{border:2px solid var(--teal);background:#e2ede0}
.slot.keyboard-focus{outline:2px dotted var(--teal);outline-offset:-2px;border-radius:6px}
.slot.rejected::after{border-color:#b94538}
.slot.pair-ready::after{content:"";position:absolute;inset:1px;z-index:6;border:2px solid #568d55;border-radius:7px;pointer-events:none}.paid-action-check{position:absolute;left:5px;top:5px;width:17px;height:17px;display:grid;place-items:center;border-radius:50%;background:#dce9cf;border:1px solid #7d9d6d;color:#46723d}.paid-action-check svg{width:12px;height:12px}.tool.paid-action-used{border-color:#739469}
.drag-ghost{position:absolute;z-index:15;width:44px;height:44px;pointer-events:none}.ghost-good{display:block;width:44px;height:44px}.contact-ring{position:absolute;width:8px;height:8px;border:1px solid #80674c;border-radius:50%;z-index:14;pointer-events:none}
.study[data-motion="full"][data-pose="peak"] .clear-study .good{transform:translateY(-7px) scale(.92);opacity:.75}
.study[data-motion="full"][data-pose="stable"] .clear-study .good{transform:translateY(-9px);opacity:.45}
.study[data-motion="full"][data-pose="peak"] .promotion-study .good{transform:translateY(-3px)}
.study[data-motion="full"][data-pose="peak"] .reorder-study .good{transform:translateX(2px)}
.discovery-stamp{position:absolute;display:flex;align-items:center;justify-content:center;left:calc(50% - 22px);top:0;height:24px;width:44px;border:1px solid #88a879;background:#e2ede0;border-radius:9px;z-index:12}.stamp-good{width:22px;height:22px}.discovery-stamp svg{width:15px;height:15px}.tool.discovery-active>svg{visibility:hidden}
.slot.selection-start .good{transform:none}.study[data-motion="full"][data-pose="start"] .receipt-study{transform:translateY(3px)}.study[data-motion="full"][data-pose="peak"] .receipt-study{transform:translateY(-1px)}.study[data-state="level-clear"][data-motion="full"][data-pose="peak"] .intro-mark svg{transform:scale(1.08)}
.help-rows{display:flex;flex-direction:column;gap:9px;margin-bottom:14px}.help-rows p{display:flex;align-items:center;gap:9px;margin:0;font-size:13px;line-height:18px}.help-rows svg{width:23px;height:23px;flex:none;color:var(--teal)}.help-depth-bars{width:26px;height:16px;flex:none;display:flex;align-items:center;gap:2px;background:#dfc49d;border-radius:3px;padding:0}.help-depth-bars i{width:5px;height:3px;background:var(--ink);display:block;flex:none}
.status-symbol{width:44px;height:44px;margin:0 auto 14px;display:grid;place-items:center;border-radius:50%;background:#ead3c3;color:#a34638}.status-symbol svg{width:24px;height:24px}.status-panel{max-width:420px}
.one-secondary{grid-template-columns:1fr!important}.collection-heading:has(.empty-collection-tip){min-height:72px}.collection-heading .empty-collection-tip{font-size:13px;margin-top:3px;line-height:18px}
.fresh-discovery{position:relative;border-color:#6d9b63;background:#edf1df}.entry-stamp{position:absolute;right:2px;top:2px;width:19px;height:19px;border-radius:50%;color:#46763e;background:#d6e4c4;padding:2px}.entry-stamp svg{width:15px;height:15px}
.reward-status .reward-card{position:relative;padding-right:30px}.status-seal{position:absolute;right:6px;top:6px;width:20px;height:20px;display:grid;place-items:center;border:1px solid #b8996f;border-radius:50%;color:#795a3e;background:var(--paper)}.status-seal svg{width:14px;height:14px}.status-grant .reward-card{background:#e3edd8;border-color:#99b484}.status-grant .status-seal{background:#d4e4c4;color:#42773c;border-color:#85ab75}.status-failed .status-seal,.status-no-fill .status-seal{color:#a6483c;border-color:#c49a83}.busy-disclosure{display:flex;justify-content:center;align-items:center;gap:7px;font-size:13px!important;line-height:18px!important;margin:0 0 12px!important}.busy-disclosure svg{width:20px;height:20px;flex:none}
@media(min-width:640px) and (min-aspect-ratio:3/2){.help-panel{max-width:590px}.help-rows{gap:7px}.help-rows p{font-size:13px;line-height:18px}.discovery-stamp{left:4px;top:9px;width:32px}.discovery-stamp .stamp-good{width:18px;height:18px}.discovery-stamp svg{width:11px;height:11px}.reward-status .panel-head{margin-bottom:10px}.reward-status .reward-card{min-height:52px}}
@media(min-aspect-ratio:3/2){.discovery-stamp{left:4px;top:9px;width:32px}.discovery-stamp .stamp-good{width:18px;height:18px}.discovery-stamp svg{width:11px;height:11px}.home-panel .panel-head{margin-bottom:12px}.home-panel .home-emblem{margin-bottom:12px}.home-panel .home-stats{margin-top:10px;padding-top:8px}.home-panel h1{font-size:21px;line-height:25px}.paid-action-check{left:auto;right:36px;top:13px}}