/* 信号岛：可操作的棋盘、物件和线路。全套图形为原生 SVG/CSS，无外部游戏依赖。 */
body.island{--paper:#101f2b;--panel:#172c37;--ink:#eef5ed;--muted:#9fb7bb;--line:#8aaca52b;--accent:#b9e4bb;--accent-ink:#183229;--chip:#23413f;--bg:#101f2b;background:#101f2b;color:var(--ink);color-scheme:dark}
body.island::before{display:none}body.island .lab-main,body.island.in-study:not(.answering) .lab-main{max-width:1240px;padding:10px 32px 52px}body.island .lab-header{min-height:76px;padding-block:15px;max-width:1280px}
.island .skip:not(:focus-visible){clip-path:inset(50%);height:1px;width:1px;overflow:hidden;padding:0;top:0}.island .skip:focus-visible{clip-path:none;height:auto;width:auto;top:10px}
.island .lab-brand img{filter:brightness(0) invert(1);opacity:.87}.island .theme-toggle,.island .test-banner,.island .lang-notice{display:none!important}.island .lab-section{color:#dbe6df}.island .lab-footer{opacity:.7;font-size:13px}.island .lab-footer .footer-note{font-size:13px}.island .lab-header .btn.ghost{color:#b3c9c5}
.is-label{font:13px/1.6 var(--sans);letter-spacing:2px;color:#a7c4bd}.is-pill{display:inline-flex;gap:7px;align-items:center;border:1px solid #8baaa64d;padding:6px 12px;border-radius:30px;font-size:13px;letter-spacing:.7px;color:#c1d6cc}
.is-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:43px;padding:11px 18px;border:1px solid #a6c4b24d;border-radius:9px;background:#26443f;color:#d7eadb;font:15px/1.5 var(--sans);cursor:pointer;transition:background .15s,transform .15s;white-space:normal}
.is-btn:hover:not(:disabled){background:#34564e;transform:translateY(-1px)}.is-btn:disabled{opacity:.35;cursor:not-allowed}.is-btn.primary{background:#c8e7b7;border-color:#c8e7b7;color:#17382f;font-weight:500}.is-btn.primary:hover:not(:disabled){background:#def2d1}.is-btn.coral{background:#efb495;color:#3e2d29;border-color:#efb495}.is-btn.quiet{background:transparent;border-color:#829c9536;color:#afc6bd}.is-btn.active{border-color:#c7e7b7;color:#d6edc7}.is-btn.large{min-height:54px;padding:14px 26px;font-size:14px}
.is-intro{display:grid;grid-template-columns:1fr 1.35fr;column-gap:20px;align-items:center;padding-top:45px}.is-intro-copy{padding:15px 0 25px 12px;position:relative;z-index:1}.is-intro-copy>.is-label{margin-bottom:27px}.is-intro-copy>.is-pill{margin-bottom:20px}.is-intro h1{font:82px/1.25 var(--serif);letter-spacing:4px;color:#e4efdd}.is-intro h1 span{color:#b8d99b}.is-lead{font:20px/1.8 var(--serif);margin:20px 0 12px;color:#d3e0d4}.is-intro-desc{font:16px/2.1 var(--sans);color:#9fb7b9;max-width:350px;margin:14px 0 25px}.is-disclaimer{font-size:13px;line-height:1.9;color:#8ea8a8;margin-top:15px}
.is-intro-scene{position:relative;min-width:0}.is-intro-scene>svg{width:115%;margin-left:-12%;display:block;filter:drop-shadow(0 24px 30px #0003)}.sea-orbit{fill:none;stroke:#719f9733;stroke-width:1;stroke-dasharray:4 8}.sea-orbit.outer{stroke:#719f971a;stroke-dasharray:none}.sea-wave{fill:none;stroke:#6b999b40;stroke-width:1.5}.world-route{fill:none;stroke:#c1d2b05c;stroke-width:2;stroke-dasharray:5 10}.isle-cliff{fill:#304952;stroke:#6a807a40;stroke-width:1}.isle-surface{fill:#719783;stroke:#aac1a48a;stroke-width:1.5}.isle-shore{fill:none;stroke:#c2c49a80;stroke-width:3}.isle-mountain{fill:#426958}.isle-snow{fill:#cad1b2}.isle-house{fill:#dba179;stroke:#775f4e;stroke-width:2;stroke-linejoin:round}.isle-dock{stroke:#bd946e;stroke-width:5;fill:none}.isle-tower{fill:#e9dfb5;stroke:#637c71;stroke-width:2}.isle-beacon{fill:#476576;stroke:#abc5ab;stroke-width:2}.isle-number{fill:#a6c2b8;font:16px var(--sans);text-anchor:middle}.isle.lit .isle-surface{fill:#a1bb83}.isle.lit .isle-beacon{fill:#e9d78e;filter:drop-shadow(0 0 9px #e9db96)}.isle-signal{fill:none;stroke:#e2d49a;stroke-width:2;opacity:.8}.world-boat{fill:#ead3a1;stroke:#9fb6a3;stroke-width:1.5}
.mica-transmission{position:absolute;left:15%;bottom:0;display:flex;gap:14px;padding:16px 20px;background:#1a3037f5;border:1px solid #739d8d50;border-radius:12px;box-shadow:0 12px 32px #0002;transform:rotate(-2deg)}.mica-eye{display:grid;place-items:center;width:41px;height:41px;border:1px solid #a4c6b45e;border-radius:12px;background:#234740;color:#bede9e;font:26px var(--sans);flex-shrink:0;box-shadow:inset 0 0 16px #9bb58a12}.mica-transmission small{font-size:12px;color:#b2d09e;letter-spacing:1px}.mica-transmission p{font:16px/1.8 var(--serif);margin-top:5px}
.is-mechanics{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);gap:30px;border-block:1px solid #7c9e8b40;margin-top:62px;padding:28px 10px}.is-mechanics>div{display:flex;gap:18px;align-items:center}.mechanic-icon{font:32px var(--serif);color:#d3dcb7;width:38px;text-align:center}.is-mechanics h2{font:16px/1.6 var(--serif);color:#e5eddc}.is-mechanics p{font-size:13px;color:#9ab4b5;margin-top:4px}.is-about{grid-column:1/-1;color:#91aaa9;font:13px/2 var(--sans);padding:22px 10px}.is-about summary{cursor:pointer}.is-about p{max-width:900px;margin-top:12px}
.is-game{padding-top:20px}.is-game-head{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:22px}.is-game-head h1{font:30px/1.6 var(--serif);margin-top:8px}.mission-head-tools{display:flex;align-items:center;gap:14px}.is-mode-tag{font-size:13px;color:#9eb8b3;white-space:nowrap}.mission-head-tools .is-btn{min-height:35px;padding:6px 11px;font-size:13px}
.is-mission-track{display:flex;align-items:center;gap:10px;margin-bottom:24px}.is-mission-track>span{display:flex;gap:8px;justify-content:center;align-items:center;flex:1;height:35px;border-radius:7px;border:1px solid #7c9a8a29;color:#6e8c88;background:#172a32}.is-mission-track b{font-size:19px;font-weight:400}.is-mission-track small{font-size:12px;letter-spacing:1px}.is-mission-track .current{color:#1b3731;background:#cadfb2;border-color:#cadfb2}.is-mission-track .done{color:#c2d8b5;background:#243f39;border-color:#85a17466}
.mission-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:22px;align-items:start}.mission-workspace{border:1px solid #96bca530;border-radius:16px;background:#192e38;padding:22px;box-shadow:0 20px 55px #0002;min-width:0}.mission-brief{display:flex;gap:14px;align-items:center;padding-bottom:18px;border-bottom:1px solid #96bca526}.mission-brief p{font-size:15px;line-height:1.95;color:#b8cac4}.mission-badge{display:grid;place-items:center;flex-shrink:0;height:42px;width:42px;border-radius:11px;background:#314a43;color:#d5dfa9;font-size:25px}.board-hud{display:flex;gap:12px;justify-content:space-between;align-items:center;margin:17px 0;font-size:13px}.phase-badge{color:#d5deb5;letter-spacing:1px}.board-readout{color:#a3bcb7;white-space:nowrap}.board-area{position:relative;max-width:600px;margin:auto}.is-board{display:grid;grid-template-columns:repeat(var(--cols),minmax(0,1fr));grid-template-rows:repeat(var(--rows),minmax(0,1fr));width:100%;aspect-ratio:var(--cols)/var(--rows);position:relative;border-radius:12px;overflow:hidden;isolation:isolate}
.is-board button{font:inherit;min-width:0;min-height:0}.is-board button:focus-visible{outline:3px solid #f0ce7f;outline-offset:-4px;z-index:6}.sea-cell{position:relative;display:grid;place-content:center;text-align:center;gap:1px;background:#264651;border:1px solid #b6c7ab12;color:#94b6b0;padding:2px;cursor:crosshair}.sea-cell:nth-child(3n){background:#2b4c53}.sea-cell.reef{background:#233d44;color:#688778}.sea-cell.reef .sea-object{text-shadow:7px 6px 0 #527768;font-size:25px}.sea-cell.fog{background:#546866;color:#d4d9b8;background-image:repeating-linear-gradient(135deg,transparent,transparent 12px,#b6c7ab09 12px,#b6c7ab09 14px)}.sea-cell .sea-object{font-size:25px;line-height:1.1;position:relative;z-index:2}.sea-cell small{font-size:12px;line-height:1.2;position:relative;z-index:2}.sea-cell.on-route{background:#365b55;color:#eff1c9}.sea-cell.route-tip{box-shadow:inset 0 0 0 2px #d1d7a9}.route-lines{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:1}.route-lines polyline{fill:none;stroke-linecap:round;stroke-linejoin:round}.player-route{stroke:#d8e5b7;stroke-width:7}.ghost-route{stroke:#efa98b;stroke-width:5;stroke-dasharray:10 13;opacity:.85}.route-board{touch-action:none;user-select:none}.sailing-boat{position:absolute;font-size:30px;line-height:1;z-index:8;left:0;top:0;transform:translate(-50%,-50%);transition:left .14s linear,top .14s linear;pointer-events:none;filter:drop-shadow(0 3px 2px #0006)}
.is-tools{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}.is-tools .is-btn{min-height:34px;font-size:13px;padding:7px 11px}.is-status{font-size:13px;line-height:1.8;color:#e8c6a4;min-height:20px;margin-top:11px}.mission-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:12px;border-top:1px solid #8aa69a26;padding-top:18px}.mission-action-hint{color:#9fb5b0;font-size:13px;max-width:180px;line-height:1.8}.mission-actions>.is-btn{min-width:200px;min-height:47px}.mission-actions:has([data-next-mission]){justify-content:flex-end}
.mica-panel{background:linear-gradient(150deg,#213934,#172b31);border:1px solid #9ec6a933;border-radius:16px;padding:24px 22px;position:sticky;top:20px;min-width:0}.mica-id{display:flex;gap:12px;align-items:center;margin-bottom:24px}.mica-id strong{font:16px var(--sans);letter-spacing:2px;display:block;color:#d7e5bc}.mica-id small{font-size:12px;letter-spacing:.7px;color:#9ab9aa;display:block;margin-top:6px}.mica-panel h2{font:22px/1.6 var(--serif);margin:16px 0;color:#e6ebd6}.mica-panel p{font-size:15px;line-height:2;color:#a7c0b8}.mica-panel>.is-btn{width:100%;margin-top:12px}.mica-panel .mica-small{font-size:13px;color:#8ca79e;margin-top:20px;padding-top:15px;border-top:1px solid #8fb29a30}.mica-waiting{font:40px var(--serif);letter-spacing:10px;color:#b9cf9f;opacity:.5;margin:28px 0}.round-stars{font-size:24px;letter-spacing:6px;color:#efd38d;margin:10px 0}.mica-panel .round-score{font:62px/1.4 var(--serif);color:#dfebc6}.round-score small{font-size:16px;color:#9bb5ab}
.cargo-board{background:#29413f;border:7px solid #8d8a6355;gap:3px;border-radius:14px;overflow:visible;aspect-ratio:4/3;min-height:0}.hold-cell{display:grid;place-content:center;grid-row:auto;background:#243b3c;border:1px dashed #94ab8f4d;color:#8ba58a80;cursor:crosshair;padding:0;z-index:0}.hold-cell span{font-size:20px}.loaded-crate{z-index:3;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:6px;padding:3px;border:2px solid #d3ddb26e;box-shadow:inset 0 -5px 0 #0002;background:#638f75;color:#122f28;cursor:pointer;min-height:0;min-width:0;overflow:hidden}.loaded-crate b{font-size:30px;line-height:1.2;font-weight:400}.loaded-crate span{font-size:13px}.crate-med{--crate:#d3b59a}.crate-food{--crate:#d4ca8d}.crate-radio{--crate:#94b8ba}.crate-blanket{--crate:#bfaed1}.crate-fuel{--crate:#b8bd9b}.crate-water{--crate:#8cb8c7}.loaded-crate{background:var(--crate);border-color:#eaf1cf66}.blueprint-crate{border:2px dashed #f0b295;background:#f0b29518;color:#f0b295;box-shadow:none;z-index:2;pointer-events:none;opacity:.8}.blueprint-crate b{font-size:19px}.blueprint-crate span{font-size:12px}.cargo-dock{margin-top:20px}.dock-heading{display:flex;justify-content:space-between;gap:10px;color:#c5d7c4;font-size:13px;margin-bottom:12px}.dock-heading small{font-size:12px;color:#92ada5}.dock-items{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.dock-crate{position:relative;display:grid;justify-items:start;gap:3px;min-height:89px;background:#243c3c;border:1px solid #8ba89b38;border-radius:9px;padding:10px 11px;color:#cbdcd1;text-align:left;cursor:grab;touch-action:none;user-select:none}.dock-crate.selected{border-color:#d5dfb5;background:#344c42}.crate-icon{color:var(--crate);font-size:22px;line-height:1.1}.dock-crate strong{font-size:13px}.dock-crate small{font-size:12px;color:#a3bdb3;white-space:nowrap}.dock-crate.is-loaded{opacity:.55}.loaded-tag{position:absolute;right:8px;top:8px;font-size:12px;color:#c1d1b0}.crate-drag-ghost{position:fixed;z-index:100;pointer-events:none;transform:translate(-50%,-70%);background:var(--crate);color:#183b33;padding:18px 22px;border-radius:8px;box-shadow:0 8px 30px #0007;font:16px var(--sans)}
.circuit-board{background:#102b31;gap:3px;border:7px solid #405d5766;aspect-ratio:4/3}.circuit-cell{padding:0;position:relative;background:#243d43;border:1px solid #8ba99b26;cursor:pointer;aspect-ratio:1}.circuit-cell svg{display:block;width:100%;height:100%;overflow:visible}.wire{fill:none;stroke:#819e96;stroke-width:11;stroke-linecap:square}.wire-ghost{fill:none;stroke:#efae90;stroke-width:4;stroke-dasharray:8 8;opacity:.9}.wire-joint{fill:#29464a;stroke:#95afa0;stroke-width:2}.wire-symbol{font:18px var(--sans);fill:#bbccc1}.circuit-cell.powered{background:#34554b}.powered .wire{stroke:#d3df99;filter:drop-shadow(0 0 5px #cceba84a)}.powered .wire-joint{fill:#bcd78c;stroke:#edecb5}.powered .wire-symbol{fill:#294235}.terminal{background:#293d48}.terminal.powered{background:#66774c}.mission-running.cargo-board{animation:cargo-leave 1s ease both}.mission-running.circuit-board .powered{animation:power-on .5s ease both}
.is-finale{padding-top:25px}.finale-hero{display:grid;grid-template-columns:1fr 1.1fr;gap:25px;align-items:center}.finale-hero h1{font:52px/1.5 var(--serif);margin-top:20px}.finale-hero .is-lead{font-size:16px}.finale-hero>svg{width:100%;min-width:0}.finale-stars{font:26px var(--serif);color:#e9d19b;margin:22px 0}.voyage-stats{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid #86a28d40;padding:24px 0;gap:20px;margin:28px 0}.voyage-stats>div{display:grid;gap:5px}.voyage-stats strong{font:38px var(--serif);color:#dae8c4}.voyage-stats span{font-size:13px;color:#9cb8b0}.voyage-log{padding:22px 0}.voyage-log h2{font:26px var(--serif);margin:13px 0 28px}.voyage-log details{border-top:1px solid #84a68b38;padding:18px 0}.voyage-log summary{display:flex;align-items:center;gap:18px;cursor:pointer;list-style:none;font-size:16px}.voyage-log summary::-webkit-details-marker{display:none}.voyage-log summary>span:nth-child(2){flex:1}.voyage-log summary b{font-size:15px;font-weight:400;color:#d3dfb8}.voyage-log summary small{font-size:13px;color:#e0c38a;width:50px;text-align:right}.log-icon{color:#e2cd9d;font-size:24px;width:30px}.log-body{padding:18px 20px;margin-top:18px;border-radius:10px;background:#20363d;color:#b2c7bb;font-size:15px;line-height:2}.log-body p+p{margin-top:8px}.finale-about{border-top:1px solid #84a68b38;padding:24px 0}.finale-about h2{font-size:16px;color:#cbd8c4}.finale-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:23px}.is-status input{display:block;width:100%;padding:8px;margin-top:10px;border:1px solid #789b8570;background:#23413b;color:#e8efdc}.island .notice{background:#29403b;color:#d4dcc5}.island .card{background:#192e38}
@keyframes cargo-leave{0%{transform:translateY(0)}35%{transform:translateY(-5px)}100%{transform:translateY(0)}}@keyframes power-on{from{filter:brightness(.7)}to{filter:brightness(1)}}
@media(max-width:1000px){.mission-layout{grid-template-columns:minmax(0,1fr) 240px;gap:16px}.mission-workspace{padding:18px}.mica-panel{padding:20px 18px}.mission-actions{flex-direction:column;align-items:stretch;gap:10px}.mission-action-hint{max-width:none}.is-intro h1{font-size:68px}.is-intro{padding-top:25px}.is-intro-copy{padding-left:0}.mica-transmission{left:5%;bottom:-18px;padding:13px 16px}.is-mechanics{margin-top:58px;gap:15px}.is-mechanics>div{gap:10px}}
@media(max-width:720px){body.island .lab-main,body.island.in-study:not(.answering) .lab-main{padding:5px 16px 32px}.island .lab-header{padding:15px 16px;min-height:65px}.island .header-link{display:none}.island .lab-section{font-size:13px}.island .lab-footer{width:calc(100% - 32px)}.is-intro{grid-template-columns:1fr;padding-top:20px}.is-intro-copy{padding:8px 7px 0}.is-intro-copy>.is-label{margin-bottom:18px;font-size:12px}.is-intro-copy>.is-pill{margin-bottom:12px;font-size:12px}.is-intro h1{font-size:64px;line-height:1.25}.is-intro .is-lead{font-size:18px;margin-top:16px}.is-intro-desc{font-size:15px;max-width:420px;margin-bottom:20px}.is-intro .is-btn.large{min-height:48px;font-size:16px}.is-disclaimer{font-size:12px}.is-intro-scene{margin:5px 0 10px}.is-intro-scene>svg{width:100%;margin-left:0}.mica-transmission{left:8%;bottom:0;padding:11px 14px}.mica-transmission p{font-size:13px}.mica-transmission small{font-size:12px}.mica-eye{height:35px;width:35px;font-size:24px}.is-mechanics{margin-top:25px;grid-template-columns:1fr;gap:19px;padding:23px 7px}.is-mechanics>div{gap:16px}.is-mechanics h2{font-size:15px}.is-mechanics p{font-size:13px}.mechanic-icon{font-size:27px}.is-about{padding:20px 7px;font-size:13px}
 .is-game{padding-top:10px}.is-game-head{gap:10px;margin-bottom:17px}.is-game-head .is-label{font-size:12px;letter-spacing:1.4px}.is-game-head h1{font-size:24px;margin-top:6px}.mission-head-tools{gap:6px;flex-direction:column;align-items:flex-end}.is-mode-tag{font-size:12px}.mission-head-tools .is-btn{font-size:12px;min-height:28px;padding:5px 8px}.is-mission-track{gap:6px;margin-bottom:17px}.is-mission-track>span{gap:5px;height:31px}.is-mission-track b{font-size:16px}.is-mission-track small{font-size:12px}.mission-layout{grid-template-columns:1fr;gap:16px}.mission-workspace{padding:16px 13px;border-radius:12px}.mission-brief{gap:10px;padding-bottom:14px}.mission-brief p{font-size:13px}.mission-badge{height:33px;width:33px;font-size:22px}.board-hud{font-size:12px;gap:6px;margin:14px 0}.phase-badge{letter-spacing:.5px}.board-readout{font-size:12px}.sea-cell .sea-object{font-size:21px}.sea-cell small{font-size:12px}.is-board{border-radius:8px}.is-tools{margin-top:12px;gap:6px}.is-tools .is-btn{font-size:12px;min-height:31px;padding:6px 9px}.is-status{font-size:13px;margin-top:8px}.mission-actions{margin-top:9px;padding-top:13px}.mission-action-hint{font-size:12px}.mission-actions>.is-btn{font-size:15px;min-height:46px}.mica-panel{position:static;padding:19px;border-radius:12px}.mica-id{margin-bottom:14px}.mica-id strong{font-size:14px}.mica-id small{font-size:12px}.mica-panel h2{font-size:20px;margin:10px 0}.mica-panel p{font-size:13px}.mica-panel .mica-small{font-size:12px;margin-top:14px;padding-top:12px}.mica-waiting{display:none}.mica-panel>.is-btn{font-size:13px;min-height:39px;margin-top:9px}.mica-panel .round-score{font-size:50px}.round-stars{font-size:21px;margin:12px 0}.cargo-board,.circuit-board{border-width:5px;gap:2px}.loaded-crate b{font-size:25px}.loaded-crate span{font-size:12px}.dock-items{gap:7px}.dock-crate{padding:9px 8px;min-height:80px}.dock-crate strong{font-size:13px}.dock-crate small{font-size:12px}.crate-icon{font-size:21px}.dock-heading small{font-size:12px}.cargo-dock{margin-top:16px}.wire-symbol{font-size:17px}.is-finale{padding-top:15px}.finale-hero{grid-template-columns:1fr;gap:0}.finale-hero h1{font-size:42px;margin-top:15px}.finale-hero .is-lead{font-size:14px}.finale-hero>svg{max-height:270px}.finale-stars{font-size:24px;margin:19px 0}.voyage-stats{grid-template-columns:1fr 1fr;gap:22px;margin:16px 0}.voyage-stats strong{font-size:32px}.voyage-stats span{font-size:12px}.voyage-log{padding:18px 0}.voyage-log h2{font-size:22px;margin-bottom:22px}.voyage-log summary{gap:9px;font-size:13px}.voyage-log summary b{font-size:13px}.voyage-log summary small{font-size:12px;width:38px}.log-icon{font-size:19px;width:23px}.log-body{font-size:13px;padding:16px}.finale-actions{gap:8px}.finale-actions>.is-btn{font-size:13px;padding:9px 12px}
}
@media(prefers-reduced-motion:reduce){.is-btn,.sailing-boat{transition:none!important}.mission-running{animation:none!important}}
@media(max-width:720px){.dock-crate small{font-size:13px;white-space:normal;line-height:1.55}.dock-crate{min-height:94px}.dock-crate strong{font-size:13px}}
.home .island-feature{background:#142d36;color:#e7eddc;border-color:#3c5b58;padding-block:15px}.home .island-feature .eyebrow{color:#91bba9}.home .island-feature h2{color:#e6edd9}.home .island-feature p:not(.eyebrow){color:#aac2b8}.home .island-feature .chip{background:#26443e;color:#b9d0bd;border-color:#56776966}.home .island-feature .btn{background:#c8e7b7;color:#193a30}.feature-island-map{min-width:0}.feature-island-map>svg{display:block;width:100%}
@media(max-width:650px){.home .island-feature{gap:5px;padding:26px 22px 8px}.feature-island-map>svg{max-height:220px}}

/* 阅读与教学：关键说明保持 15–16px，辅助标签至少 12–13px。 */
.mission-brief p,.mica-panel p,.is-status{font-size:16px;line-height:1.85}
.mica-panel .mica-small{font-size:14px;line-height:1.85}
.board-hud{flex-wrap:wrap;align-items:baseline;font-size:14px;row-gap:8px}
.board-readout{white-space:normal;line-height:1.7;font-size:14px}
.mission-action-hint{font-size:14px;max-width:230px}
.is-tools .is-btn,.mission-head-tools .is-btn{font-size:14px;min-height:44px;padding:10px 13px}
.is-mode-tag{font-size:12px}.mission-head-tools{flex-wrap:wrap;justify-content:flex-end}
.dock-crate{min-height:138px;padding:14px;gap:6px}.dock-crate strong{font-size:16px}
.dock-crate .crate-stats{display:grid;gap:2px;font-size:14px;line-height:1.55;white-space:normal}
.dock-crate.is-loaded{opacity:1;background:#1c3236}.dock-crate.is-loaded strong{color:#cbdcd1}
.loaded-tag{position:static;grid-row:1;grid-column:1;justify-self:end;font-size:12px;line-height:1.5;color:#d5e3c4}
.dock-crate .crate-icon{grid-row:1;grid-column:1;justify-self:start}.loaded-crate span{font-size:13px}
.wire-symbol{font-size:22px}.sea-cell small{font-size:13px;line-height:1.2}
.board-legend{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:18px 0 0;padding:14px 0;border-block:1px solid #8aa69a26}
.board-legend>div{min-width:0}.board-legend dt{font-size:15px;line-height:1.6;color:#deebc4}.board-legend dd{font-size:13px;line-height:1.8;color:#b2c8c0;margin:4px 0 0}
.island .is-tutorial{width:min(660px,calc(100vw - 28px));max-width:none;max-height:calc(100dvh - 32px);overflow:auto;padding:28px;border:1px solid #7ea68a80;border-radius:20px;background:#192e38;color:#eef5ed;box-shadow:0 24px 100px #0008;inset:0;margin:auto}
.is-tutorial::backdrop{background:#08151cd9}
.island .is-tutorial[open]{display:flex;flex-direction:column}
.tutorial-top,.tutorial-actions{flex:none}.tutorial-content{overflow-y:auto;min-height:0;overscroll-behavior:contain;padding:4px 5px 8px;margin:0 -5px}
.is-tutorial h2[tabindex="-1"]:focus{outline:none}
.tutorial-top{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:20px}
.tutorial-top .is-label{font-size:12px;letter-spacing:1px}.tutorial-top .is-btn{font-size:13px;min-height:44px}
.is-tutorial h2{font:28px/1.5 var(--serif);margin:0 0 14px;color:#e9efd8}
.tutorial-content>p{font-size:16px;line-height:1.85;color:#bfd2c8}
.is-tutorial .tutorial-instruction{color:#e7eebd;background:#2b463f;border-radius:10px;padding:13px 16px;margin:18px 0;font-size:16px}
.tutorial-practice{border:1px solid #8da5984d;border-radius:12px;padding:20px;background:#102731;margin:0 0 18px}
.tutorial-route-grid,.tutorial-circuit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;align-items:stretch}
.guide-tile{min-height:86px;font-size:18px;padding:10px;border:2px solid #77958c80;background:#2a4851;line-height:1.6;color:#d9e8d0}
.guide-tile.connected,.guide-slot.filled{background:#456347;border-color:#c7dfaa;color:#f0f4d6}
.guide-target{outline:3px solid #efd294;outline-offset:3px;box-shadow:0 0 0 7px #efd29416}
.tutorial-cargo-controls{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:22px}.tutorial-cargo-controls .is-btn{font-size:15px;min-height:54px}
.tutorial-hold{display:grid;grid-template-columns:1fr 1fr;gap:6px;max-width:290px;margin:auto}
.guide-slot{aspect-ratio:2;min-height:54px;border:1px dashed #a2b2977a;background:#253e40;font-size:22px}
.guide-slot.filled{font-size:16px;border-style:solid}
.guide-terminal{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:8px;background:#263f41;border:1px solid #7d9b8b50;border-radius:9px;font-size:15px;min-height:100px}
.guide-terminal b{font-size:28px;font-weight:400}.guide-joint{font-size:46px;min-height:100px;background:#2a4345;color:#b6c5b6;padding:0}
.tutorial-circuit-grid.connected .guide-terminal,.tutorial-circuit-grid.connected .guide-joint{background:#435d3b;color:#e9efb0;border-color:#c2d79c}
.is-tutorial .tutorial-extra{font-size:15px;line-height:1.85}
.tutorial-flow{display:flex;flex-wrap:wrap;gap:10px 20px;margin:20px 0;padding:0;list-style:none;color:#a9c5bb;font-size:13px;line-height:1.8}
.tutorial-flow li+li::before{content:'→';margin-right:12px;color:#d7ddad}
.tutorial-actions{display:flex;gap:16px;justify-content:space-between;align-items:center;padding-top:18px;border-top:1px solid #7b9b863b}
.tutorial-actions>span{font-size:13px;color:#a7c2b6;line-height:1.8;max-width:190px}.tutorial-actions .is-btn{min-height:48px;font-size:15px}
@media(max-width:720px){
  .is-game-head{align-items:start;flex-wrap:wrap}.is-game-head>div:first-child{flex:1;min-width:180px}
  .mission-head-tools{flex-direction:row;align-items:center;justify-content:flex-start;gap:8px}.mission-head-tools .is-mode-tag{display:none}
  .is-game-head .is-label{font-size:12px;letter-spacing:.6px}.mission-brief p{font-size:15px}.mission-brief{align-items:start}
  .mica-panel p,.is-status{font-size:15px}.mica-panel .mica-small{font-size:14px}.mica-panel>.is-btn{font-size:15px;min-height:46px}
  .board-hud,.board-readout{font-size:14px}.mission-action-hint{font-size:14px}.sea-cell small{font-size:12px}
  .dock-heading{align-items:start;flex-direction:column;font-size:15px;gap:4px}.dock-heading small{font-size:13px;line-height:1.7}
  .dock-crate{min-height:138px;padding:12px}.dock-crate strong{font-size:15px}.dock-crate .crate-stats{font-size:13px}
  .loaded-crate span{font-size:12px}.is-tools .is-btn{font-size:14px;min-height:44px}
  .board-legend{grid-template-columns:1fr;gap:9px;padding:14px 0}.board-legend>div{display:grid;grid-template-columns:92px 1fr;align-items:baseline;gap:10px}.board-legend dt{font-size:14px}.board-legend dd{font-size:13px;margin:0}
  .island .is-tutorial{padding:22px 18px;border-radius:15px}.is-tutorial h2{font-size:24px}.tutorial-top{align-items:start;gap:8px;margin-bottom:16px}.tutorial-top .is-label{font-size:12px;max-width:110px}
  .tutorial-top .is-btn{font-size:13px;padding:8px 10px;min-height:44px;flex-shrink:0}.tutorial-practice{padding:14px}
  .tutorial-route-grid,.tutorial-circuit-grid{gap:9px}.guide-tile{font-size:15px;min-height:75px;padding:5px}.guide-terminal{font-size:14px;min-height:90px}.guide-joint{min-height:90px;font-size:38px}
  .tutorial-cargo-controls{grid-template-columns:1fr;gap:14px;margin-bottom:20px}.tutorial-cargo-controls .is-btn{font-size:15px;min-height:46px}
  .tutorial-flow{display:grid;grid-template-columns:1fr;gap:7px;font-size:14px;counter-reset:guide-flow}.tutorial-flow li{counter-increment:guide-flow}.tutorial-flow li::before{content:counter(guide-flow) ' / ';color:#dae3b9;margin:0 8px 0 0}
  .tutorial-actions{align-items:stretch;flex-direction:column;gap:12px}.tutorial-actions>span{max-width:none;font-size:13px}.tutorial-actions .is-btn{font-size:16px}
}
@media(max-width:480px){.dock-items{grid-template-columns:repeat(2,minmax(0,1fr))}.island .lab-header .lab-section{font-size:12px}.island .lab-header .lab-brand img{width:100px}}
@media(max-width:360px){.island .lab-header .lab-brand img{width:92px}}