/* 源：DESIGN §0.2/0.5 + 003 V0.4；深色、状态和动效为派生候选。 */
:root{--bg:oklch(0.9611514 0 0);--surface:oklch(1.0000000 0 0);--fg:oklch(0.2501083 0.0072071 248.1162);--muted:oklch(.47 .009 248);--border:oklch(.84 .003 248);--accent:oklch(0.6592478 0.1946103 37.6219);--font-display:-apple-system,BlinkMacSystemFont,'SF Pro Display','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;--font-body:-apple-system,BlinkMacSystemFont,'SF Pro Text','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;--font-mono:'SF Mono',ui-monospace,Menlo,Consolas,monospace;--fs-h1:26px;--fs-h2:16px;--fs-h3:15px;--fs-body:14px;--fs-meta:12px;--radius:8px;--radius-lg:12px;--gap-md:16px;--container:1080px;--gutter:28px;--success:oklch(.40 .08 158);--error:oklch(.44 .15 25);--focus:oklch(.45 .14 254);--action-ink:oklch(.16 .015 40);--popup-width:360px;--text-scale:1;--accent-soft:color-mix(in oklch,var(--accent) 10%,var(--surface));--fg-soft:color-mix(in oklch,var(--fg) 5%,var(--surface));}
html[data-theme="dark"]{--bg:oklch(.18 .007 248);--surface:oklch(.235 .008 248);--fg:oklch(.96 .003 248);--muted:oklch(.79 .009 248);--border:oklch(.44 .009 248);--accent:oklch(.72 .17 40);--success:oklch(.81 .11 158);--error:oklch(.84 .09 25);--focus:oklch(.78 .11 254);}
body{line-height:1.5}h1,h2,h3,h4{font-family:var(--font-display)}button,input,textarea,select{font:inherit}button,a,input,textarea,select,summary,[tabindex]{touch-action:manipulation}button,select,summary{min-height:44px}button{color:var(--fg)}button:disabled{opacity:.48;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--focus);outline-offset:3px}input:focus,textarea:focus{outline:2px solid var(--focus);outline-offset:1px;border-color:var(--focus)}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.section{padding-block:48px}.topnav{position:static;background:var(--surface);backdrop-filter:none}.topnav-inner{padding-block:12px}.project-caption{margin-left:20px;font-size:13px;color:var(--muted)}.demo-badge,.small-label,.surface-caption,.surface-note{font-size:12px;color:var(--muted)}.prototype-stage{grid-template-columns:minmax(0,1fr) minmax(0,var(--popup-width));align-items:start;gap:80px;max-width:990px}.source-context{padding-top:48px;max-width:400px}.source-context h1{font-size:25px;line-height:1.4;margin:16px 0 24px}.source-context p{margin-block:16px;color:var(--muted);line-height:1.9}.source-context .meta{margin-top:0}.source-domain{font:12px var(--font-mono);color:var(--muted);overflow-wrap:anywhere}.source-foot{display:flex;flex-wrap:wrap;gap:8px 16px;border-top:1px solid var(--border);padding-top:16px;margin-top:32px;font-size:11px;color:var(--muted)}.popup-column{min-width:0;width:100%}.surface-caption{margin:0 0 12px;display:flex;justify-content:space-between}.surface-note{line-height:1.7;margin:12px 4px 0}.popup{padding:0;border-radius:12px;box-shadow:0 2px 4px color-mix(in oklch,var(--fg) 3%,transparent),0 12px 32px color-mix(in oklch,var(--fg) 6%,transparent);font-size:calc(14px * var(--text-scale));line-height:1.45;overflow-wrap:anywhere}.popup-header{padding:8px 12px 8px 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);min-height:56px}.popup-header strong{font-size:14px;letter-spacing:-.02em}.compact{gap:8px}.stack.compact>*+*{margin-top:8px}.icon-btn{min-width:44px;height:44px;padding:0;border:0;border-radius:8px;background:transparent;font-size:22px;line-height:1}.icon-btn:hover{background:var(--fg-soft);color:var(--fg)}#popup-body{padding:20px}.source-summary{display:flex;align-items:flex-start;gap:12px}.source-summary>div:last-child{min-width:0}.source-summary h2{font-size:calc(16px * var(--text-scale));line-height:1.5;font-weight:600;margin:4px 0}.source-summary p{margin:0}.file-mark{width:36px;min-width:36px;height:42px;border:1px solid var(--border);border-radius:6px;display:grid;place-items:center;background:var(--bg);color:var(--muted)}.file-mark svg{width:20px;height:24px}.connection-line{display:flex;gap:6px;align-items:center;font-size:calc(12px * var(--text-scale));color:var(--muted);margin:18px 0 16px}.connection-line::before{content:'';display:block;width:6px;height:6px;border:1px solid currentColor;border-radius:50%;flex-shrink:0}.action-footer{display:flex;flex-direction:column;gap:4px;margin-top:16px}.btn{justify-content:center;min-height:44px;padding:9px 12px;font-size:inherit;line-height:1.5;border-radius:10px;transition:background 90ms,border-color 90ms}.btn-primary{background:var(--accent);color:var(--action-ink);border-color:var(--accent);font-weight:600}.btn-primary:hover{background:color-mix(in oklch,var(--accent) 82%,var(--surface));color:var(--action-ink);border-color:var(--accent)}.btn-secondary{background:var(--surface);border-color:var(--border);color:var(--fg)}.btn-secondary:hover{background:var(--fg-soft);color:var(--fg);border-color:var(--muted)}.text-btn{border:0;border-radius:6px;padding:8px;background:transparent;color:var(--fg);font-size:calc(13px * var(--text-scale));line-height:1.5;text-align:center;min-height:44px}.text-btn:hover{background:var(--fg-soft);color:var(--fg)}.popup-bottom{display:flex;justify-content:space-between;gap:4px;border-top:1px solid var(--border);padding:4px 12px;background:var(--surface);border-radius:0 0 12px 12px}.popup-bottom .text-btn{font-size:calc(12px * var(--text-scale));min-width:0}.popup-bottom .num{margin-left:5px}.inline-message{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:12px;margin:12px 0;line-height:1.65;font-size:calc(13px * var(--text-scale));overflow-wrap:anywhere}.inline-message p{margin:4px 0 8px}.inline-message strong{font-weight:600}.error-message,.field-error{color:var(--error)}.field-error{font-size:calc(12px * var(--text-scale));line-height:1.6;min-height:0;margin:0}.field-error:empty{display:none}.field{margin-top:14px;min-width:0}.field label{font-size:calc(12px * var(--text-scale));color:var(--muted);display:flex;justify-content:space-between;gap:6px}.input,.textarea,select{padding:10px 12px;font-size:calc(13px * var(--text-scale));line-height:1.5;min-width:0;background:var(--surface);color:var(--fg);border:1px solid var(--border);border-radius:8px;width:100%}.input[readonly]{background:var(--bg)}textarea{min-height:100px;max-width:100%;resize:vertical}.tag-list{display:flex;flex-wrap:wrap;gap:4px}.tag-chip,.tag-choice{font-size:calc(12px * var(--text-scale));padding:5px 8px;background:var(--bg);color:var(--fg);border:1px solid var(--border);border-radius:6px;overflow-wrap:anywhere}.tag-chip{display:inline-flex;align-items:center;gap:4px}.tag-chip button{padding:0 6px;min-width:32px;min-height:44px;background:transparent;color:var(--fg);border:0}.tag-entry{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px}.tag-choice{min-height:44px}.tag-choice:hover,.tag-chip button:hover{background:var(--fg-soft);color:var(--fg)}.location-anchor{position:relative}.location-trigger{text-align:left;display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:44px;white-space:normal}.picker{position:relative;z-index:3;background:var(--surface);border:1px solid var(--border);border-radius:8px;box-shadow:0 5px 14px color-mix(in oklch,var(--fg) 8%,transparent);padding:8px;margin-top:4px}.picker p{padding:4px 8px;margin:0}.location-option{display:block;width:100%;background:transparent;border:0;padding:10px;text-align:left;color:var(--fg);border-radius:6px;overflow-wrap:anywhere}.location-option[aria-selected="true"]{font-weight:600;background:var(--bg)}.location-option:hover{background:var(--fg-soft);color:var(--fg)}.selection-block{padding:12px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin-top:16px;font-size:calc(13px * var(--text-scale))}.selection-block p{white-space:pre-wrap;line-height:1.65;margin:8px 0}.selection-block .text-btn{padding-inline:0;text-align:left;margin-right:8px}.crop-field{margin-top:16px}.crop-field>.btn{width:100%}.crop-field img,#candidate-img{width:auto;max-width:100%;height:auto;max-height:240px;object-fit:contain;border-radius:6px;margin-top:12px}.draft-line{margin-top:12px;border-top:1px solid var(--border);padding-top:12px}.draft-line p{margin:0}.draft-line .text-btn{padding-left:0}.receipt{display:flex;gap:12px;padding:16px 0;border-top:1px solid var(--border);margin-top:8px;align-items:flex-start}.receipt h3{font-size:calc(15px * var(--text-scale));line-height:1.5}.receipt p{font-size:calc(13px * var(--text-scale));line-height:1.65;margin:5px 0 0}.receipt-mark{font-size:20px;color:var(--success);flex-shrink:0;min-width:20px}.receipt[data-kind="waiting"] .receipt-mark,.receipt[data-kind="unknown"] .receipt-mark{color:var(--muted)}.closed-state{padding:28px;background:var(--surface);border:1px solid var(--border);border-radius:12px;line-height:1.8}.demo-section{padding-block:24px 48px}.demo-section summary{display:flex;align-items:center;gap:16px;cursor:pointer;font-weight:600;list-style-position:inside}.demo-section summary>.ph-icon{flex-shrink:0}details[open]>summary>.ph-icon{transform:rotate(90deg)}.demo-section summary span{font-size:12px;font-weight:400;color:var(--muted)}.console-content{padding-top:8px;font-size:13px}.console-content>p{color:var(--muted);margin:0 0 20px}.demo-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.demo-grid .field{margin:0}.demo-group{border-top:1px solid var(--border);padding-top:16px;margin-top:20px}.demo-group strong{font-size:12px}.control-row{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.control-row button,.demo-grid button{border:1px solid var(--border);background:var(--surface);color:var(--fg);border-radius:6px;padding:8px 12px;font-size:13px;line-height:1.5}.control-row button:hover,.demo-grid button:hover{background:var(--fg-soft);color:var(--fg);border-color:var(--muted)}.control-row .btn-primary{background:var(--accent);color:var(--action-ink)}.check{display:flex!important;align-items:center;justify-content:flex-start!important;gap:8px!important;min-height:36px}.check input{width:18px;height:18px;accent-color:var(--fg)}.demo-group+.demo-grid{border-top:1px solid var(--border);padding-top:20px;margin-top:16px}.handoff-links{display:flex;flex-wrap:wrap;gap:20px;border-top:1px solid var(--border);margin-top:20px;padding-top:12px}.handoff-links a{padding-block:10px;text-decoration:underline;text-underline-offset:3px}.handoff-links a:hover{color:var(--fg);text-decoration-thickness:2px}pre{font:12px/1.6 var(--font-mono);white-space:pre-wrap;overflow-wrap:anywhere;max-height:360px;overflow:auto;background:var(--surface);padding:16px;border:1px solid var(--border);border-radius:8px}.sheet-layer{position:fixed;inset:0;z-index:30;display:flex;align-items:flex-start;justify-content:center;padding:6vh 20px;background:color-mix(in oklch,var(--fg) 14%,transparent);overflow:auto}.sheet{width:min(100%,520px);max-height:88vh;overflow-y:auto;padding:20px;overscroll-behavior:contain;min-width:0;overflow-wrap:anywhere;box-shadow:0 16px 48px color-mix(in oklch,var(--fg) 12%,transparent)}.sheet h2{font-size:18px;line-height:1.5}.sheet h3{font-size:15px;margin-block:12px 6px}.sheet p{font-size:13px;line-height:1.7}.sheet .log-row{display:block;padding:14px 0;border-top:1px solid var(--border);font-size:13px}.sheet .log-row p{margin:5px 0}.sheet .log-row h3{margin:0}.sheet .log-row button{font-size:13px}.sheet .record{border-top:1px solid var(--border);padding:12px 0;white-space:pre-wrap}.sheet code{font:12px var(--font-mono);overflow-wrap:anywhere}.sheet dl{font-size:13px;display:grid;grid-template-columns:70px minmax(0,1fr);gap:10px}.sheet dt{color:var(--muted)}.sheet dd{margin:0;overflow-wrap:anywhere}.crop-dialog{width:min(100%,720px)}#crop-workspace{position:relative;width:100%;margin-top:16px;border:1px solid var(--border);touch-action:none}#crop-canvas{display:block;width:100%;height:auto}#crop-rect{position:absolute;border:2px solid var(--focus);pointer-events:none;box-shadow:0 0 0 1px var(--surface) inset;background:color-mix(in oklch,var(--focus) 6%,transparent)}.range-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:12px}.range-grid label{font-size:12px;color:var(--muted)}.range-grid input{width:100%;padding:10px 6px;color:var(--fg);background:var(--surface);border:1px solid var(--border);border-radius:6px}.sheet #candidate-img{margin:12px auto;max-height:260px}.sheet .btn-primary{background:var(--accent);color:var(--action-ink)}html[data-transparency="reduced"] .sheet-layer{background:var(--bg)}html[data-transparency="reduced"] .topnav{background:var(--surface);backdrop-filter:none}html[data-motion="reduced"] *,html[data-motion="reduced"] *::before,html[data-motion="reduced"] *::after{transition:none!important;animation:none!important}.popup .small-label{font-size:calc(12px * var(--text-scale))}.popup .field label{font-size:calc(12px * var(--text-scale))}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important}}
@media(max-width:920px){.prototype-stage{grid-template-columns:minmax(0,var(--popup-width));justify-content:center;gap:24px}.source-context{display:none}.section{padding-block:28px}.demo-grid{grid-template-columns:1fr}.demo-badge{max-width:130px;text-align:right}.project-caption{display:none}}
@media(max-width:420px){:root{--gutter:12px}.prototype-stage{grid-template-columns:minmax(0,1fr)}.popup-column{max-width:var(--popup-width);justify-self:center}.sheet-layer{padding:8px}.sheet{max-height:calc(100dvh - 16px);padding:16px}.range-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.popup #popup-body{padding:16px}.surface-caption{gap:8px}.demo-section summary{flex-wrap:wrap;gap:8px}.tag-entry{grid-template-columns:minmax(0,1fr)}.control-row .btn{flex:1 1 100%}}
/* Hover 只改变边缘；普通文字与底色对比不降低。 */
.btn-secondary:hover,.control-row button:hover,.demo-grid button:hover{background:var(--surface);color:var(--fg);border-color:var(--muted)}
.text-btn:hover,.icon-btn:hover{background:transparent;color:var(--fg);box-shadow:inset 0 0 0 1px var(--border)}
.tag-choice:hover,.tag-chip button:hover{background:var(--bg);color:var(--fg);border-color:var(--muted)}
.location-option:hover{background:transparent;color:var(--fg);box-shadow:inset 0 0 0 1px var(--border)}
.location-option[aria-selected="true"]:hover{background:var(--bg)}
.btn-primary:hover,.control-row .btn-primary:hover,.sheet .btn-primary:hover{background:oklch(from var(--accent) calc(l + .07) c h);color:var(--action-ink);border-color:var(--accent)}

/* 原许可图标沿用现有文字颜色与控件尺寸。 */
.ph-icon{display:inline-block;width:20px;height:20px;max-width:none;flex-shrink:0;vertical-align:middle;pointer-events:none}.icon-btn .ph-icon{width:18px;height:18px}.location-trigger>span{min-width:0;overflow-wrap:anywhere}.receipt[data-kind="failed"] .receipt-mark,.receipt[data-kind="cancel-hold"] .receipt-mark{color:var(--error)}.receipt[data-kind="sending"] .receipt-mark{color:var(--muted)}.draft-review{white-space:pre-wrap;overflow-wrap:anywhere;max-height:180px;overflow:auto;border:1px solid var(--border);border-radius:8px;padding:12px;font:13px/1.7 var(--font-body)}