:root{--color-lavender: #b8a9e8;--color-lavender-dark: #8f7bd4;--color-lavender-bg: #f3f0fc;--color-coral: #ff8fa3;--color-coral-dark: #ff6b85;--color-mint: #7fe0c4;--color-mint-dark: #4fcaa8;--color-text: #4a4458;--color-text-light: #7a7288;--color-white: #ffffff;--color-bg: #fbf9ff;--color-border: #e5ddf7;--color-danger: #e85d75;--color-danger-bg: #fff0f2;--color-warning: #f5a623;--color-warning-bg: #fff8e8;--radius-sm: 12px;--radius-md: 20px;--radius-lg: 28px;--radius-full: 999px;--shadow-soft: 0 4px 16px rgba(143, 123, 212, .15);--shadow-hover: 0 8px 24px rgba(143, 123, 212, .22);--font-main: "M PLUS Rounded 1c", "Hiragino Maru Gothic ProN", "Yu Gothic", system-ui, -apple-system, sans-serif;color-scheme:light}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font-main);background:var(--color-bg);color:var(--color-text);line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit}img,svg{max-width:100%}.container{max-width:960px;margin:0 auto;padding:0 20px}.site-header{background:var(--color-white);border-bottom:1px solid var(--color-border);padding:18px 0}.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;font-size:1.15rem;color:var(--color-text)}.brand-logo{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-md);background:linear-gradient(135deg,var(--color-lavender),var(--color-coral));font-size:1.3rem}.brand-sub{font-size:.7rem;color:var(--color-text-light);font-weight:500;display:block}.site-nav{display:flex;align-items:center}.site-nav-list{display:flex;align-items:center;flex-wrap:nowrap;gap:1px;list-style:none;margin:0;padding:0}.site-nav-link,.site-nav-toggle{display:inline-flex;align-items:center;gap:3px;background:none;border:none;cursor:pointer;font-family:inherit;font-size:.8rem;font-weight:700;color:var(--color-text);text-decoration:none;padding:8px;border-radius:var(--radius-full);white-space:nowrap}.site-nav-link:hover,.site-nav-toggle:hover{background:var(--color-lavender-bg)}.site-nav-link.is-current,.site-nav-toggle.is-current{background:var(--color-lavender-bg);color:var(--color-lavender-dark)}.site-nav-caret{font-size:.65rem;transition:transform .15s ease}.site-nav-item{position:relative}.site-nav-item.is-open .site-nav-caret{transform:rotate(180deg)}.site-nav-dropdown{display:none;flex-direction:column;position:absolute;top:calc(100% + 6px);left:0;min-width:260px;max-height:calc(100vh - 90px);overflow-y:auto;background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-hover);padding:8px;z-index:20}.site-nav-item.is-open .site-nav-dropdown{display:flex}.site-nav-dropdown a{display:block;padding:10px 12px;border-radius:var(--radius-sm);font-size:.85rem;font-weight:600;color:var(--color-text);text-decoration:none}.site-nav-dropdown a:hover{background:var(--color-lavender-bg)}.site-nav-dropdown a.is-current{background:var(--color-lavender-bg);color:var(--color-lavender-dark)}.site-nav-heading{display:block;margin:8px -8px 4px;padding:6px 20px;background:var(--color-lavender-bg);font-size:.72rem;font-weight:700;letter-spacing:.08em;color:var(--color-text-light);cursor:default}.site-nav-heading:first-child{margin-top:-8px;border-radius:var(--radius-md) var(--radius-md) 0 0}.site-nav-heading:last-child{margin-bottom:-8px;border-radius:0 0 var(--radius-md) var(--radius-md)}.site-nav-hamburger{display:none;flex-direction:column;justify-content:center;align-items:center;gap:4px;width:40px;height:40px;background:none;border:none;border-radius:var(--radius-sm);cursor:pointer;flex-shrink:0}.site-nav-hamburger:hover{background:var(--color-lavender-bg)}.site-nav-hamburger span{display:block;width:20px;height:2px;background:var(--color-text);border-radius:var(--radius-full)}@media (max-width: 900px){.site-nav-hamburger{display:flex}.site-nav{position:relative}.site-nav-list{display:none;flex-direction:column;align-items:stretch;gap:2px;position:absolute;top:calc(100% + 14px);right:0;width:78vw;max-width:320px;max-height:calc(100vh - 90px);overflow-y:auto;background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-hover);padding:10px;z-index:30}.site-nav.is-mobile-open .site-nav-list{display:flex}.site-nav-link,.site-nav-toggle{width:100%;justify-content:space-between;padding:12px}.site-nav-item{position:static}.site-nav-dropdown{position:static;box-shadow:none;border:none;padding:0 0 0 14px;min-width:0}.site-nav-heading{margin-left:-24px;margin-right:-10px;padding-left:36px}.site-nav-heading:first-child{margin-top:0}.site-nav-heading:last-child{margin-bottom:0}}.site-footer{margin-top:60px;padding:28px 0 40px;text-align:center;color:var(--color-text-light);font-size:.8rem}.hero{text-align:center;padding:48px 0 32px}.hero h1{font-size:clamp(1.6rem,4vw,2.4rem);margin:0 0 12px;font-weight:800}.hero p{color:var(--color-text-light);font-size:1rem;max-width:560px;margin:0 auto}.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;padding:8px 0 40px}.tool-card{background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:28px 24px;text-decoration:none;color:var(--color-text);box-shadow:var(--shadow-soft);transition:transform .15s ease,box-shadow .15s ease;display:flex;flex-direction:column;gap:10px}.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}.tool-card-icon{width:52px;height:52px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.6rem;background:var(--color-lavender-bg)}.tool-card h2{margin:0;font-size:1.1rem;font-weight:700}.tool-card p{margin:0;font-size:.88rem;color:var(--color-text-light)}.tool-card-badge{align-self:flex-start;font-size:.72rem;font-weight:700;color:var(--color-mint-dark);background:#7fe0c433;padding:4px 10px;border-radius:var(--radius-full)}.tool-card.tool-card--soon{opacity:.55;cursor:not-allowed}.tool-card.tool-card--soon .tool-card-badge{color:var(--color-text-light);background:var(--color-lavender-bg)}.back-link{display:inline-flex;align-items:center;gap:6px;font-size:.85rem;color:var(--color-lavender-dark);text-decoration:none;font-weight:600;margin-bottom:8px}.back-link:hover{text-decoration:underline}.card{background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-soft)}@media (max-width: 480px){.card{padding:20px 18px;border-radius:var(--radius-md)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:inherit;font-weight:700;font-size:.95rem;padding:14px 28px;border-radius:var(--radius-full);border:none;cursor:pointer;transition:transform .1s ease,box-shadow .15s ease,opacity .15s ease;text-decoration:none}.btn:active{transform:scale(.97)}.btn-primary{background:linear-gradient(135deg,var(--color-lavender-dark),var(--color-lavender));color:var(--color-white);box-shadow:0 6px 16px #8f7bd459}.btn-primary:hover{box-shadow:0 8px 20px #8f7bd473}.btn-accent{background:linear-gradient(135deg,var(--color-coral-dark),var(--color-coral));color:var(--color-white);box-shadow:0 6px 16px #ff6b8559}.btn-mint{background:linear-gradient(135deg,var(--color-mint-dark),var(--color-mint));color:var(--color-white);box-shadow:0 6px 16px #4fcaa859}.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}label:has(input:disabled){opacity:.45;cursor:not-allowed}label:has(input:disabled) input{cursor:not-allowed}select:disabled,textarea:disabled,input:disabled:not([type=radio]):not([type=checkbox]){opacity:.45;cursor:not-allowed}.btn-block{width:100%}.dropzone{border:2px dashed var(--color-lavender);border-radius:var(--radius-lg);background:var(--color-lavender-bg);padding:40px 20px;text-align:center;cursor:pointer;transition:background .15s ease,border-color .15s ease}.dropzone:hover,.dropzone.is-dragover{background:#e9e2fa;border-color:var(--color-lavender-dark)}.dropzone-icon{font-size:2.4rem;margin-bottom:8px}.dropzone-main{font-weight:700;font-size:1rem;margin-bottom:4px}.dropzone-sub{font-size:.8rem;color:var(--color-text-light)}.level-options{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0}@media (max-width: 560px){.level-options{grid-template-columns:1fr}}.level-option{position:relative}.level-option input{position:absolute;opacity:0;width:100%;height:100%;margin:0;cursor:pointer}.level-option-card{border:2px solid var(--color-border);border-radius:var(--radius-md);padding:16px 12px;text-align:center;background:var(--color-white);transition:border-color .15s ease,background .15s ease}.level-option input:checked+.level-option-card{border-color:var(--color-lavender-dark);background:var(--color-lavender-bg)}.level-option input:focus-visible+.level-option-card{outline:2px solid var(--color-lavender-dark);outline-offset:2px}.level-option-title{font-weight:700;font-size:.95rem;margin-bottom:4px}.level-option-desc{font-size:.75rem;color:var(--color-text-light)}.file-info{display:flex;align-items:center;gap:14px;background:var(--color-lavender-bg);border-radius:var(--radius-md);padding:16px 18px;margin:18px 0}.file-info-icon{font-size:1.8rem;flex-shrink:0}.file-info-name{font-weight:700;font-size:.9rem;word-break:break-all}.file-info-size{font-size:.8rem;color:var(--color-text-light)}.file-info-remove{margin-left:auto;background:none;border:none;cursor:pointer;font-size:1.2rem;color:var(--color-text-light);padding:4px 8px;flex-shrink:0}.estimate-box{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fff;border:1px dashed var(--color-mint-dark);border-radius:var(--radius-md);padding:14px 18px;margin:16px 0;flex-wrap:wrap}.estimate-label{font-size:.8rem;color:var(--color-text-light)}.estimate-value{font-size:1.3rem;font-weight:800;color:var(--color-mint-dark)}.estimate-note{width:100%;font-size:.72rem;color:var(--color-text-light)}.result-compare{display:flex;align-items:center;justify-content:center;gap:20px;padding:20px 0;flex-wrap:wrap}.result-compare-item{text-align:center}.result-compare-label{font-size:.78rem;color:var(--color-text-light);margin-bottom:4px}.result-compare-value{font-size:1.4rem;font-weight:800}.result-compare-value.is-before{color:var(--color-text-light)}.result-compare-value.is-after{color:var(--color-mint-dark)}.result-compare-arrow{font-size:1.4rem;color:var(--color-coral-dark)}.result-ratio{text-align:center;font-size:.9rem;font-weight:700;color:var(--color-coral-dark);background:#fff0f4;border-radius:var(--radius-full);padding:8px 16px;display:inline-block;margin:0 auto 12px}.result-ratio-wrap{text-align:center}.alert{border-radius:var(--radius-md);padding:14px 18px;font-size:.85rem;margin:16px 0;display:flex;gap:10px;align-items:flex-start}.alert-icon{flex-shrink:0}.alert-warning{background:var(--color-warning-bg);color:#8a6300}.alert-danger{background:var(--color-danger-bg);color:var(--color-danger)}.progress-wrap{text-align:center;padding:24px 0}.spinner{width:44px;height:44px;margin:0 auto 14px;border-radius:50%;border:5px solid var(--color-lavender-bg);border-top-color:var(--color-lavender-dark);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.progress-text{font-size:.9rem;color:var(--color-text-light)}[hidden]{display:none!important}.section-title{font-size:1rem;font-weight:700;margin:0 0 12px}.actions-row{display:flex;gap:12px;margin-top:20px;flex-wrap:wrap}.actions-row .btn{flex:1;min-width:140px}.upload-error-list{background:var(--color-danger-bg);border-radius:var(--radius-md);padding:14px 18px;margin:16px 0;font-size:.82rem}.upload-error-row{display:flex;flex-wrap:wrap;gap:4px 8px;color:var(--color-danger);padding:4px 0}.upload-error-row strong{word-break:break-all}.file-list-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:18px 0 10px}.file-list-count{font-size:.8rem;color:var(--color-text-light);font-weight:600}.file-list-clear{background:none;border:none;color:var(--color-lavender-dark);font-size:.8rem;font-weight:700;cursor:pointer;padding:4px 8px}.file-list{display:flex;flex-direction:column;gap:10px;margin-bottom:8px}.file-list-item{display:flex;align-items:center;gap:12px;background:var(--color-lavender-bg);border-radius:var(--radius-md);padding:12px 16px}.file-list-icon{font-size:1.4rem;flex-shrink:0}.file-list-main{min-width:0;flex:1}.file-list-name{font-weight:700;font-size:.85rem;word-break:break-all}.file-list-meta{font-size:.75rem;color:var(--color-text-light)}.file-list-error-text{color:var(--color-danger)}.file-list-remove{background:none;border:none;cursor:pointer;font-size:1.1rem;color:var(--color-text-light);padding:4px 6px;flex-shrink:0}.status-badge{font-size:.72rem;font-weight:700;padding:4px 10px;border-radius:var(--radius-full);white-space:nowrap;flex-shrink:0}.status-badge--pending{color:var(--color-text-light);background:var(--color-white)}.status-badge--processing{color:var(--color-lavender-dark);background:#fff}.status-badge--done{color:var(--color-mint-dark);background:#7fe0c433}.status-badge--error{color:var(--color-danger);background:var(--color-danger-bg)}@media (max-width: 480px){.file-list-item{flex-wrap:wrap}}.option-block{border:1px solid var(--color-border);border-radius:var(--radius-md);padding:16px 18px;margin-bottom:14px}.option-toggle{display:flex;align-items:center;gap:10px;cursor:pointer;font-weight:700;font-size:.95rem}.option-toggle input{width:20px;height:20px;accent-color:var(--color-lavender-dark);cursor:pointer}.option-body{margin-top:16px;padding-top:16px;border-top:1px dashed var(--color-border)}.mode-tabs{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}.mode-tab{position:relative}.mode-tab input{position:absolute;opacity:0}.mode-tab-label{display:inline-block;padding:8px 16px;border-radius:var(--radius-full);border:2px solid var(--color-border);font-size:.82rem;font-weight:700;cursor:pointer;color:var(--color-text-light)}.mode-tab input:checked+.mode-tab-label{border-color:var(--color-lavender-dark);background:var(--color-lavender-bg);color:var(--color-text)}button.mode-tab-label{font-family:inherit;background:var(--color-white)}button.mode-tab-label.is-active{border-color:var(--color-lavender-dark);background:var(--color-lavender-bg);color:var(--color-text)}.preset-options{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}@media (max-width: 560px){.preset-options{grid-template-columns:1fr}}.custom-size-fields{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap}.field-group{display:flex;flex-direction:column;gap:6px}.field-group label{font-size:.78rem;color:var(--color-text-light);font-weight:600}.field-group input[type=number]{width:110px;padding:10px 12px;border-radius:var(--radius-sm);border:2px solid var(--color-border);font-family:inherit;font-size:.9rem}.field-group input[type=number]:focus{outline:none;border-color:var(--color-lavender-dark)}.custom-size-x{font-weight:700;color:var(--color-text-light);padding-bottom:10px}.checkbox-row{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--color-text);cursor:pointer;padding-bottom:10px}.checkbox-row input{width:18px;height:18px;accent-color:var(--color-lavender-dark);cursor:pointer}.result-list{display:flex;flex-direction:column;gap:10px;margin:16px 0}.result-list-item{background:var(--color-lavender-bg);border-radius:var(--radius-md);padding:12px 16px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px}.result-list-name{font-weight:700;font-size:.85rem;word-break:break-all}.result-list-sizes{display:flex;align-items:center;gap:8px;font-size:.82rem;flex-wrap:wrap}.result-list-sizes .is-before{color:var(--color-text-light)}.result-list-sizes .is-after{color:var(--color-mint-dark);font-weight:700}.result-list-arrow{color:var(--color-coral-dark)}.result-list-ratio{font-size:.72rem;font-weight:700;color:var(--color-coral-dark);background:#fff0f4;padding:3px 10px;border-radius:var(--radius-full)}.sortable-list{display:flex;flex-direction:column;gap:10px;margin-bottom:8px}.sortable-item{display:flex;align-items:center;gap:10px;background:var(--color-lavender-bg);border-radius:var(--radius-md);padding:12px 14px;-webkit-user-select:none;user-select:none}.sortable-item.is-dragging{opacity:.5;box-shadow:var(--shadow-hover)}.sortable-handle{font-size:1.2rem;color:var(--color-text-light);cursor:grab;touch-action:none;padding:4px 6px;flex-shrink:0}.sortable-order{font-weight:800;font-size:.85rem;color:var(--color-lavender-dark);flex-shrink:0;width:22px;text-align:center}.sortable-main{min-width:0;flex:1}.sortable-name{font-weight:700;font-size:.85rem;word-break:break-all}.sortable-meta{font-size:.75rem;color:var(--color-text-light)}.sortable-remove{background:none;border:none;cursor:pointer;font-size:1.1rem;color:var(--color-text-light);padding:4px 6px;flex-shrink:0}.thumb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:12px;margin:16px 0}.thumb-item{text-align:center}.thumb-item-frame{border:1px solid var(--color-border);border-radius:var(--radius-sm);overflow:hidden;background:var(--color-white);aspect-ratio:3 / 4;display:flex;align-items:center;justify-content:center}.thumb-item-frame img{width:100%;height:100%;object-fit:contain;display:block}.thumb-item-frame .thumb-loading{font-size:.7rem;color:var(--color-text-light)}.thumb-item-label{margin-top:6px;font-size:.75rem;font-weight:700;color:var(--color-text-light)}.range-input{width:100%;padding:12px 16px;border-radius:var(--radius-md);border:2px solid var(--color-border);font-family:inherit;font-size:.95rem;margin-top:4px}.range-input:focus{outline:none;border-color:var(--color-lavender-dark)}.range-hint{font-size:.78rem;color:var(--color-text-light);margin-top:6px}.range-divider{display:flex;align-items:center;gap:10px;margin:18px 0;color:var(--color-text-light);font-size:.78rem}.range-divider:before,.range-divider:after{content:"";flex:1;height:1px;background:var(--color-border)}.footer-links{display:flex;justify-content:center;flex-wrap:wrap;gap:6px 20px;margin:0 0 12px;padding:0;list-style:none}.footer-links a{color:var(--color-lavender-dark);text-decoration:none;font-weight:700;font-size:.8rem}.footer-links a:hover{text-decoration:underline}.info-section{margin-top:32px;display:flex;flex-direction:column;gap:20px}.info-block{background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:26px 28px;box-shadow:var(--shadow-soft)}.info-block h2{font-size:1.05rem;margin:0 0 14px;font-weight:800}.info-block>p{margin:0;color:var(--color-text);font-size:.92rem;line-height:1.8}.info-block>p+p{margin-top:12px}.scenario-list{display:flex;flex-direction:column;gap:16px}.scenario-item{padding-top:14px;border-top:1px dashed var(--color-border)}.scenario-item:first-child{padding-top:0;border-top:none}.scenario-item strong{display:block;margin-bottom:4px;color:var(--color-lavender-dark);font-size:.94rem}.scenario-item p{margin:0;color:var(--color-text);font-size:.92rem;line-height:1.8}.notice-list{margin:0;padding-left:1.3em;display:flex;flex-direction:column;gap:10px}.notice-list li{font-size:.92rem;line-height:1.8;color:var(--color-text)}.related-tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}.related-tool-card{display:block;background:var(--color-lavender-bg);border-radius:var(--radius-md);padding:16px 18px;text-decoration:none;transition:background .15s ease}.related-tool-card strong{display:block;color:var(--color-lavender-dark);font-size:.92rem;margin-bottom:4px}.related-tool-card span{display:block;font-size:.82rem;color:var(--color-text-light);line-height:1.6}.related-tool-card:hover{background:var(--color-lavender-dark)}.related-tool-card:hover strong,.related-tool-card:hover span{color:var(--color-white)}.steps-list{margin:0;padding-left:1.3em;display:flex;flex-direction:column;gap:10px}.steps-list li{font-size:.92rem;line-height:1.75;color:var(--color-text)}.faq-list{display:flex;flex-direction:column;gap:16px}.faq-item{border-top:1px dashed var(--color-border);padding-top:14px}.faq-item:first-child{border-top:none;padding-top:0}.faq-q{font-weight:700;margin:0 0 6px;color:var(--color-lavender-dark);font-size:.92rem}.faq-a{margin:0;color:var(--color-text-light);font-size:.88rem;line-height:1.75}.safety-note{display:flex;align-items:flex-start;gap:12px;background:var(--color-lavender-bg);border-radius:var(--radius-lg);padding:18px 22px}.safety-note-icon{font-size:1.3rem;flex-shrink:0}.safety-note p{margin:0;font-size:.88rem;color:var(--color-text);line-height:1.75}@media (max-width: 480px){.info-block{padding:20px}}.form-embed-wrap{display:flex;justify-content:center}.form-embed{width:100%;max-width:640px;height:554px;border:none;border-radius:var(--radius-md)}@media (max-width: 480px){.form-embed{height:620px}}.legal-content h2{font-size:1.05rem;margin:30px 0 10px}.legal-content h2:first-child{margin-top:0}.legal-content p,.legal-content li{font-size:.92rem;line-height:1.85;color:var(--color-text)}.legal-content 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