:root{--bg: #ffffff;--bg-secondary: #fbf9f5;--bg-tertiary: #f4f0e6;--text: #281e1b;--text-secondary: #6b5c57;--border: #e3dfd3;--accent: #7a2424;--accent-light: #f7e8e8;--accent-hover: #5c1919;--export-bar-bg: #fcd968;--export-title-prefix: #111111;--export-title-accent: #e74c3c;--export-footer-text: #111111;--export-border: #e5dbb9;--header-height: 56px;--footer-height: 44px;--title-font-size: 26px}*{box-sizing:border-box}html,body{margin:0;padding:0;width:100%;height:100%;background-color:var(--bg-tertiary);display:flex;justify-content:center;align-items:center;overflow:hidden;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}.map-container{position:relative;width:100%;height:100%;background-color:var(--bg);box-shadow:none;border-radius:0;overflow:hidden;border:none;padding-top:var(--header-height);padding-bottom:var(--footer-height)}.html-fixed-title{position:absolute;top:0;left:0;width:100%;height:var(--header-height);background-color:var(--bg-secondary);z-index:9998;display:flex;justify-content:center;align-items:center;border-bottom:1px solid var(--border);font-size:var(--title-font-size);font-weight:900;color:var(--text);letter-spacing:2px;pointer-events:none;padding:0 20px;text-align:center;overflow:hidden;white-space:nowrap}.html-fixed-footer{position:absolute;bottom:0;left:0;width:100%;height:var(--footer-height);background-color:var(--bg-secondary);z-index:9998;display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--border);padding:0 20px;pointer-events:none}.footer-avatar{width:32px;height:32px;border-radius:50%;border:1px solid var(--border);object-fit:cover;display:block}.title-highlight{color:var(--accent)!important;font-weight:900!important;margin-left:4px;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.deco-element{position:absolute;z-index:9999;-webkit-user-select:none;user-select:none}.deco-home-btn{top:calc((var(--header-height) - 36px) / 2);left:16px;width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;border:1px solid rgba(0,0,0,.08);background:#ffffffe0;color:var(--accent);text-decoration:none;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 6px 18px #00000014;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease}.deco-home-btn:hover{background:#fff;color:var(--accent-hover);transform:translateY(-1px);box-shadow:0 8px 22px #0000001f}.deco-home-btn:active{transform:scale(.96)}.deco-home-btn:focus-visible{outline:2px solid rgba(122,36,36,.25);outline-offset:2px}.deco-home-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}.category-tag{font-size:16px;font-weight:600;color:var(--text-secondary);background-color:var(--bg);border:1px solid var(--border);padding:5px 14px;border-radius:8px;letter-spacing:.5px}.watermark-overlay{position:absolute;top:var(--header-height);left:0;width:100%;height:calc(100% - var(--header-height) - var(--footer-height));z-index:1;pointer-events:none;opacity:.01;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='150' viewBox='0 0 150 150'%3E%3Ctext x='50%25' y='50%25' font-family='sans-serif' font-weight='bold' font-size='18' fill='%23000' text-anchor='middle' transform='rotate(-30 75 75)'%3EHow Flow%3C/text%3E%3C/svg%3E")}#mindmap{width:100%;height:100%;background-color:transparent;display:block;position:relative;z-index:2}.markmap-node foreignObject{overflow:visible!important}.markmap-node-circle{fill:#fff!important;stroke-width:2px!important;r:6px!important}.markmap-node[data-depth="0"]>.markmap-node-circle,.markmap-node[data-depth="0"]>foreignObject{display:none!important}.markmap-link{fill:none!important;stroke-width:2px!important}.markmap-foreign>div{display:inline-block!important;white-space:pre-wrap!important;width:max-content!important;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:22px!important;color:#000!important;line-height:1.5!important}.markmap-foreign p{margin:0!important}.case-tip{color:#06c;font-weight:400;cursor:help;pointer-events:auto!important}.case-tip-bubble{position:fixed;background:#282c34fa;color:#fff;padding:10px 14px;border-radius:8px;font-size:15px;font-weight:400;line-height:1.5;width:320px;white-space:normal;display:none;z-index:999999;box-shadow:0 6px 20px #0000004d;border:1px solid var(--accent);pointer-events:auto;user-select:text;-webkit-user-select:text}.config-toggle-btn,.download-btn,.page-btn,.zoom-btn{border-radius:50%;background:#ffffffd9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(0,0,0,.08);color:var(--accent);cursor:pointer;display:flex;justify-content:center;align-items:center;transition:all .25s cubic-bezier(.4,0,.2,1)}.config-toggle-btn:hover,.download-btn:hover,.page-btn:hover:not(:disabled),.zoom-btn:hover{background:#fff;border-color:#00000026;color:var(--accent-hover);transform:translateY(-2px)}.config-toggle-btn:active,.download-btn:active,.page-btn:active:not(:disabled),.zoom-btn:active{transform:translateY(0) scale(.95);background:var(--accent-light)}.config-toggle-btn,.download-btn{width:44px;height:44px;box-shadow:0 4px 16px #00000014}.config-toggle-btn:hover,.download-btn:hover{box-shadow:0 6px 20px #0000001f}.config-toggle-btn:hover{transform:translateY(-2px) rotate(45deg)}.page-btn,.zoom-btn{width:32px;height:32px;font-size:14px;font-weight:700;box-shadow:0 2px 8px #0000000f}.zoom-btn{font-size:16px}.page-btn:hover:not(:disabled),.zoom-btn:hover{box-shadow:0 4px 12px #0000001a}.page-btn:disabled{opacity:.4;cursor:not-allowed;transform:none!important;box-shadow:none}.top-right-ctrl{position:absolute;top:10px;right:16px;z-index:10000;display:flex;align-items:center;gap:8px}.share-btn-minimal{width:38px;height:38px;background:#ffffffc7;box-shadow:0 4px 16px #00000014}.right-bottom-ctrl{position:fixed;bottom:65px;right:24px;z-index:10000;display:flex;flex-direction:column;gap:10px;align-items:flex-end;opacity:.3;transition:opacity .25s ease}.right-bottom-ctrl:hover,.right-bottom-ctrl:focus-within{opacity:1}.config-panel{position:relative;transition:all .4s cubic-bezier(.165,.84,.44,1);display:flex;flex-direction:column;gap:10px;align-items:flex-end}.pagination-ctrl{position:absolute;bottom:0;left:50%;transform:translate(-50%);height:var(--footer-height);display:flex;align-items:center;gap:16px;z-index:10000;background:transparent;border:none;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;padding:0}.page-info{font-size:15px;font-weight:700;color:var(--text);min-width:50px;text-align:center}#page-input{width:2.4em;height:28px;padding:0;text-align:center;font:inherit;color:var(--text);background:transparent;border:none;border-bottom:1px solid transparent;border-radius:4px;outline:none;-moz-appearance:textfield;transition:background .15s ease,border-color .15s ease}#page-input:hover{background:#0000000a}#page-input:focus{background:var(--bg-secondary);border-bottom-color:var(--accent)}#page-input::-webkit-inner-spin-button,#page-input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.zoom-ctrl{position:absolute;bottom:58px;left:50%;transform:translate(-50%);display:flex;gap:12px;z-index:10000;opacity:.3;transition:opacity .25s ease}.zoom-ctrl:hover{opacity:1}.mindmap-access-tip{position:absolute;left:18px;bottom:calc(var(--footer-height) + 16px);z-index:10001;display:flex;align-items:center;gap:10px;max-width:min(520px,calc(100% - 36px));padding:8px 10px 8px 12px;border:1px solid rgba(122,36,36,.18);border-radius:8px;background:#ffffffdb;color:var(--text-secondary);font-size:13px;line-height:1.35;box-shadow:0 6px 18px #00000014;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}.mindmap-access-tip[hidden]{display:none}.mindmap-access-tip button{flex:0 0 auto;border:none;border-radius:6px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;line-height:1;padding:8px 10px;cursor:pointer}.mindmap-access-tip button:hover{background:var(--accent-hover)}#loading-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#fffffff2;z-index:20000;flex-direction:column;justify-content:center;align-items:center;font-size:18px;font-weight:700;color:#2c3e50}.config-content{position:absolute;bottom:0;right:0;width:270px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;box-shadow:0 10px 30px #00000014;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);padding:16px;transform-origin:bottom right;transition:all .4s cubic-bezier(.165,.84,.44,1);display:flex;flex-direction:column;gap:14px}.config-debug-card{position:absolute;right:0;bottom:calc(100% + 12px);max-width:min(180px,calc(100vw - 32px));padding:6px 8px;border:1px solid rgba(122,36,36,.12);border-radius:8px;background:#fffffff0;box-shadow:0 6px 18px #00000012;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);color:var(--text);display:flex;flex-direction:column;align-items:center;gap:4px}.config-debug-card[hidden]{display:none}.config-debug-card strong{min-width:0;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-secondary);font-size:10px;line-height:1;font-weight:600}.config-debug-card strong+strong{padding-top:4px;border-top:1px solid rgba(122,36,36,.12)}.config-panel.collapsed .config-toggle-btn{display:flex}.config-panel.collapsed .config-content{opacity:0;transform:scale(.8) translate(20px,20px);pointer-events:none}.config-panel.expanded .config-toggle-btn{display:none}.config-panel.expanded .config-content{opacity:1;transform:scale(1) translate(0);pointer-events:auto}.config-header{display:flex;justify-content:space-between;align-items:center}.config-title-block{display:flex;align-items:center;gap:8px;min-width:0}.config-header h3{margin:0;font-size:14px;font-weight:600;color:var(--text);letter-spacing:.5px}.config-mode-badge{color:var(--text-secondary);background:#7a242412;border:1px solid rgba(122,36,36,.12);border-radius:999px;font-size:10px;line-height:1;padding:4px 7px;white-space:nowrap}.config-mode-badge.smart{color:var(--accent);background:#7a24241a;border-color:#7a242433}.config-close-btn{background:none;border:none;color:var(--text-secondary);font-size:18px;font-weight:300;cursor:pointer;line-height:1;padding:0;transition:color .2s}.config-close-btn:hover{color:var(--accent)}.config-body{display:flex;flex-direction:column;gap:14px}.config-body>.config-item:not(:last-of-type){padding-bottom:14px;margin-bottom:-14px}.config-item{display:flex;flex-direction:column;gap:4px}.config-label{display:flex;justify-content:space-between;font-size:12px;font-weight:500;color:var(--text-secondary)}.config-value{color:var(--accent);font-weight:600;font-size:12px}.config-item input[type=range]{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:3px;border-radius:1.5px;background:var(--border);outline:none;margin:6px 0}.config-item input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:12px;height:12px;border-radius:50%;background:var(--accent);cursor:pointer;border:2px solid #ffffff;box-shadow:0 1px 4px #00000026;transition:transform .1s}.config-item input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2)}.config-group-title{display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-size:11px;font-weight:500;color:var(--text-secondary);padding-top:4px;transition:color .2s;-webkit-user-select:none;user-select:none}.config-group-title:hover{color:var(--accent)}.config-group-title .arrow-icon{font-size:10px;transition:transform .3s}.config-group-title.expanded .arrow-icon{transform:rotate(180deg)}.config-advanced-section{display:flex;flex-direction:column;gap:12px;overflow:hidden;transition:max-height .3s cubic-bezier(.165,.84,.44,1),opacity .3s}.config-advanced-section.collapsed{max-height:0;opacity:0;pointer-events:none}.config-advanced-section.expanded{max-height:200px;opacity:1;pointer-events:auto}.config-footer{display:flex;margin-top:4px}.config-smart-row{display:flex;margin-top:2px}.config-footer[hidden]{display:none}.config-btn-primary,.config-btn-secondary{border:none;font-weight:700;padding:8px 12px;font-size:12px;border-radius:6px;cursor:pointer;width:100%;text-align:center;transition:background-color .25s,color .25s,transform .25s,box-shadow .25s}.config-btn-primary{background-color:var(--accent);color:#fff;box-shadow:0 4px 12px #7a242426}.config-btn-secondary{background-color:#7a242414;color:var(--accent);border:1px solid rgba(122,36,36,.14)}.config-btn-primary:hover{background-color:var(--accent-hover);transform:translateY(-1px);box-shadow:0 6px 16px #7a242440}.config-btn-secondary:hover{background-color:#7a242421;transform:translateY(-1px)}.config-btn-primary:active,.config-btn-secondary:active{transform:translateY(0) scale(.98)}@media (max-width: 640px),(max-width: 820px) and (max-height: 900px) and (orientation: portrait){:root{--title-font-size: 20px}.html-fixed-title{justify-content:center;padding:0 14px;letter-spacing:0}.title-highlight{margin-left:0;max-width:100%}.deco-home-btn{left:12px;width:34px;height:34px}.right-bottom-ctrl{right:16px;bottom:65px}.pagination-ctrl{bottom:0;height:var(--footer-height);padding:0;gap:10px}.mindmap-access-tip{left:12px;right:12px;bottom:calc(var(--footer-height) + 12px);justify-content:space-between}}.toast-stack{position:fixed;top:24px;left:50%;transform:translate(-50%);z-index:999999;display:flex;flex-direction:column;gap:8px;pointer-events:none;width:max-content;max-width:min(90vw,480px)}.toast-item{background:#1e1e1ef2;color:#fff;padding:10px 18px;border-radius:8px;font-size:14px;font-weight:500;line-height:1.5;box-shadow:0 4px 20px #00000040;opacity:0;transform:translateY(-6px);transition:opacity .28s ease,transform .28s ease;pointer-events:auto;text-align:center;border:1px solid rgba(255,255,255,.08)}.toast-item.visible{opacity:1;transform:translateY(0)}.toast-item.toast-error{background:#b41e1ef5;border-color:#ff64644d}.toast-item.toast-warning{background:#b4640af5;border-color:#ffb4504d}.toast-item.toast-success{background:#198241f5;border-color:#50dc784d}