*{box-sizing:border-box;margin:0;padding:0}.line-page-wrapper{font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,sans-serif;background:#b2dfdb;min-height:100vh}.line-page{display:flex;flex-direction:column;width:100%;max-width:480px;height:100vh;background:#8dabd8;box-shadow:0 0 20px #0003}.chat-pane{display:flex;justify-content:center;align-items:stretch}@media(max-width:767px){.line-page-wrapper{display:flex;flex-direction:column;height:100vh}.info-panel{background:#00b900;color:#fff;flex-shrink:0;box-shadow:0 2px 8px #00000026}.info-panel-header{padding:10px 16px;display:flex;align-items:center;gap:10px}.info-logo{font-size:22px;line-height:1;flex-shrink:0}.info-text{flex:1;display:flex;flex-direction:column;gap:1px;min-width:0}.info-title{font-size:15px;font-weight:700;letter-spacing:.02em}.info-catchcopy{font-size:11px;opacity:.8;letter-spacing:.03em}.info-toggle{background:none;border:none;color:#fff;font-size:18px;cursor:pointer;padding:0 4px;opacity:.85;line-height:1;flex-shrink:0;transition:transform .25s ease}.info-panel--open .info-toggle{transform:rotate(180deg)}.info-panel-body{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 16px;display:flex;flex-direction:column;gap:14px}.info-panel--open .info-panel-body{max-height:600px;padding-bottom:16px}.info-features{list-style:none;display:flex;flex-direction:column;gap:7px}.info-features li{font-size:14px;opacity:.92;line-height:1.5}.info-steps{display:flex;flex-direction:column;gap:8px}.info-steps-title{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;opacity:.65}.info-steps-list{padding-left:16px;display:flex;flex-direction:column;gap:6px}.info-steps-list li{font-size:13px;opacity:.88;line-height:1.5}.info-github{display:inline-flex;align-items:center;color:#fff;text-decoration:none;font-size:13px;font-weight:600;padding:8px 16px;border:1.5px solid rgba(255,255,255,.5);border-radius:20px;width:fit-content;margin-bottom:2px}.chat-pane{flex:1;overflow:hidden}.line-page{height:100%;max-width:100%}}@media(min-width:768px){.line-page-wrapper{display:grid;grid-template-columns:1fr 480px}.info-panel{display:flex;flex-direction:column;justify-content:center;padding:56px 52px;gap:32px;color:#fff;background:linear-gradient(150deg,#007030,#0a0 60%,#0c4);position:relative;overflow:hidden;min-height:100vh}.info-panel:before{content:"";position:absolute;width:480px;height:480px;border-radius:50%;background:#ffffff0f;top:-120px;right:-140px;pointer-events:none}.info-panel:after{content:"";position:absolute;width:320px;height:320px;border-radius:50%;background:#ffffff0a;bottom:-80px;left:-80px;pointer-events:none}.info-panel-header{display:flex;flex-direction:column;gap:12px}.info-text{display:flex;flex-direction:column;gap:6px}.info-toggle{display:none}.info-panel-body{display:flex;flex-direction:column;gap:28px}.info-logo{font-size:64px;line-height:1;filter:drop-shadow(0 4px 16px rgba(0,0,0,.2))}.info-title{font-size:34px;font-weight:800;letter-spacing:-.02em;text-shadow:0 2px 8px rgba(0,0,0,.15)}.info-catchcopy{font-size:18px;font-weight:300;opacity:.88;letter-spacing:.05em}.info-features{list-style:none;display:flex;flex-direction:column;gap:10px}.info-features li{font-size:15px;opacity:.92;line-height:1.5}.info-steps{display:flex;flex-direction:column;gap:10px}.info-steps-title{font-size:12px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;opacity:.65}.info-steps-list{padding-left:18px;display:flex;flex-direction:column;gap:7px}.info-steps-list li{font-size:14px;opacity:.88;line-height:1.5}.info-github{display:inline-flex;align-items:center;gap:8px;color:#fff;text-decoration:none;font-size:14px;font-weight:600;padding:10px 22px;border:2px solid rgba(255,255,255,.5);border-radius:24px;width:fit-content;transition:border-color .2s,background .2s;position:relative;z-index:1}.info-github:hover{border-color:#fff;background:#ffffff1f}}.chat-header{display:flex;align-items:center;gap:12px;padding:12px 16px;background:#00b900;color:#fff;flex-shrink:0;box-shadow:0 2px 4px #00000026}.chat-header-title{flex:1;font-size:17px;font-weight:700;letter-spacing:.03em}.file-label{font-size:22px;cursor:pointer;opacity:.9;transition:opacity .2s}.file-label:hover{opacity:1}.print-btn{font-size:22px;background:none;border:none;cursor:pointer;opacity:.9;transition:opacity .2s;padding:0;line-height:1;color:inherit}.print-btn:hover:not(:disabled){opacity:1}.print-btn:disabled{opacity:.4;cursor:default}.user-select-wrapper{display:flex;align-items:center}.user-select{background:#fff3;color:#fff;border:1px solid rgba(255,255,255,.5);border-radius:6px;padding:4px 8px;font-size:12px;cursor:pointer;outline:none;max-width:110px}.user-select option{background:#00b900;color:#fff}.user-select:focus{border-color:#ffffffe6}.chat-area{flex:1;overflow-y:auto;padding:12px 10px;display:flex;flex-direction:column;gap:4px}.chat-area::-webkit-scrollbar{width:4px}.chat-area::-webkit-scrollbar-thumb{background:#0003;border-radius:2px}.date-divider{display:flex;align-items:center;justify-content:center;margin:10px 0 6px}.date-divider span{background:#0000002e;color:#fff;font-size:11px;padding:3px 12px;border-radius:10px;letter-spacing:.05em}.system-message{display:flex;align-items:center;justify-content:center;margin:10px 0 6px}.system-message span{background:#0000002e;color:#fff;font-size:11px;padding:3px 12px;border-radius:10px;letter-spacing:.05em}.bubble-row{display:flex;align-items:flex-end;gap:6px;margin:2px 0}.bubble-row.mine{flex-direction:row;justify-content:flex-end;padding-right:4px}.bubble-row.theirs{padding-left:4px}.bubble{padding:9px 12px;border-radius:18px;font-size:14px;line-height:1.55;word-break:break-word;white-space:pre-wrap}.bubble-outer{display:inline-flex;align-items:flex-start;max-width:75%}.bubble.mine{background:#b2e880;color:#1a1a1a}.bubble.theirs{background:#fff;color:#1a1a1a;box-shadow:0 1px 2px #00000014}.bubble-tail{flex-shrink:0;display:block;align-self:flex-start;margin-top:0}.bubble-tail.theirs{margin-right:-8px;order:-1}.bubble-tail.mine{margin-left:-8px}.bubble.special{background:transparent;border:none;box-shadow:none;padding:2px 4px}.bubble.special.mine{background:transparent}.special-label{font-size:13px;color:#666;background:#0000000f;border-radius:12px;padding:4px 10px;display:inline-block}.bubble-time{font-size:10px;color:#8a8a8a;flex-shrink:0;margin-bottom:2px}.avatar{width:36px;height:36px;border-radius:50%;background:#a5d6a7;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;color:#fff;flex-shrink:0;align-self:flex-start;overflow:hidden}.avatar img{width:100%;height:100%;border-radius:50%;object-fit:cover}.avatar-clickable{cursor:pointer;position:relative}.avatar-clickable:after{content:"📷";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:14px;background:#00000073;border-radius:50%;opacity:0;transition:opacity .15s}.avatar-clickable:hover:after{opacity:1}.bubble-content{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1}.sender-name{font-size:11px;color:#666;padding-left:2px}.bubble-with-time{display:flex;align-items:flex-end;gap:4px}.bubble a{color:#1a6adb;word-break:break-all}.bubble a:hover{text-decoration:underline}.chat-footer{padding:6px 12px;background:#f0f0f0;border-top:1px solid #ddd;flex-shrink:0;display:flex;justify-content:space-between;align-items:center}.footer-filename{font-size:11px;color:#999}.footer-version{font-size:11px;color:#bbb}@media print{@page{margin:10mm 8mm}html,body,#root{height:auto}body{background:#fff;display:block}.line-page{width:100%;max-width:480px;height:auto;box-shadow:none;-webkit-print-color-adjust:exact;print-color-adjust:exact;background:#8dabd8;margin:0 auto}.info-panel,.file-label,.avatar-label,.print-btn,.user-select-wrapper{display:none}.line-page-wrapper,.chat-pane{display:block;height:auto;overflow:visible}.chat-area{overflow:visible;height:auto;flex:none}.chat-footer{display:none}.bubble.mine{-webkit-print-color-adjust:exact;print-color-adjust:exact;background:#b2e880}.bubble.theirs{-webkit-print-color-adjust:exact;print-color-adjust:exact;background:#fff;box-shadow:none}.bubble-tail.theirs path{-webkit-print-color-adjust:exact;print-color-adjust:exact;fill:#fff}.date-divider span,.system-message span{-webkit-print-color-adjust:exact;print-color-adjust:exact;background:#00000073}.bubble-row{break-inside:avoid}.date-divider{break-inside:avoid;break-before:auto}.print-modal-overlay{display:none}}@media print{body.print-ink-saving .line-page,body.print-ink-saving .chat-area{background:#fff}body.print-ink-saving .date-divider span,body.print-ink-saving .system-message span{-webkit-print-color-adjust:exact;print-color-adjust:exact;background:#0000004d}body.print-ink-saving .bubble.mine{-webkit-print-color-adjust:exact;print-color-adjust:exact;background:#b2e880}body.print-ink-saving .bubble.theirs{-webkit-print-color-adjust:exact;print-color-adjust:exact;background:#fdf6e3;box-shadow:none}body.print-ink-saving .bubble-tail.theirs path{-webkit-print-color-adjust:exact;print-color-adjust:exact;fill:#fdf6e3}body.print-ink-saving .bubble-tail.mine path{-webkit-print-color-adjust:exact;print-color-adjust:exact;fill:#b2e880}}.print-modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.print-modal{background:#fff;border-radius:14px;padding:28px 24px 20px;width:320px;max-width:90vw;box-shadow:0 8px 32px #00000038;display:flex;flex-direction:column;gap:18px}.print-modal-title{font-size:16px;font-weight:700;color:#1a1a1a;text-align:center;letter-spacing:.02em}.print-modal-options{display:flex;flex-direction:column;gap:10px}.print-modal-option{display:flex;align-items:flex-start;gap:14px;padding:12px 14px;border:2px solid #e0e0e0;border-radius:10px;cursor:pointer;background:#fff;text-align:left;transition:border-color .18s,background .18s;width:100%}.print-modal-option:hover{border-color:#00b900;background:#f6fff6}.print-modal-option-icon{font-size:26px;line-height:1;flex-shrink:0;margin-top:1px}.print-modal-option-text{display:flex;flex-direction:column;gap:3px}.print-modal-option-label{font-size:14px;font-weight:700;color:#1a1a1a}.print-modal-option-desc{font-size:12px;color:#666;line-height:1.45}.print-modal-cancel{background:none;border:none;cursor:pointer;font-size:13px;color:#999;text-align:center;padding:4px 0;width:100%;transition:color .15s}.print-modal-cancel:hover{color:#555}.error{color:#d32f2f;background:#ffebee;border-radius:8px;padding:10px 14px;font-size:13px;margin:8px 0;text-align:center}