*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{font-family:'Noto Sans JP','Hiragino Sans','Hiragino Kaku Gothic ProN','Yu Gothic','Meiryo',sans-serif;line-height:1.8;color:#374151;background-color:#f8faf9;letter-spacing:0.04em;-webkit-font-smoothing:antialiased}a{color:#059669;text-decoration:none;transition:color 0.2s}a:hover{color:#047857;text-decoration:underline}img{max-width:100%;height:auto;display:block}.layout{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column}.layout__main{flex:1;width:100%;max-width:960px;margin:0 auto;padding:clamp(20px,4vw,36px) clamp(16px,3vw,24px)}.header{background-color:rgba(255,255,255,0.96);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 1px 3px rgba(0,0,0,0.04),0 1px 2px rgba(0,0,0,0.02);padding:12px 16px;position:sticky;top:0;z-index:100}.header__inner{max-width:960px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px}.header__logo{display:flex;align-items:center;flex-shrink:0;min-height:44px;transition:opacity 0.2s ease}.header__logo:hover{text-decoration:none;opacity:0.8}.header__logoImage{height:clamp(28px,4vw,36px);width:auto}.header__nav{display:flex;gap:clamp(12px,3vw,24px);font-size:0.875rem}.header__navLink{color:#6b7280;font-weight:500;transition:color 0.2s;letter-spacing:0.02em;position:relative;padding:8px 0;min-height:44px;display:inline-flex;align-items:center}.header__navLink:hover{color:#059669;text-decoration:none}.header__navLink::after{content:'';position:absolute;bottom:4px;left:50%;width:0;height:2px;background-color:#059669;transition:width 0.25s ease,left 0.25s ease}.header__navLink:hover::after{width:100%;left:0}.header__navLink_state_active{color:#059669;font-weight:600}.header__navLink_state_active::after{width:100%;left:0}.footer{background-color:#111827;color:#9ca3af;padding:clamp(32px,6vw,48px) clamp(16px,3vw,20px) 32px;font-size:0.8125rem;margin-top:auto}.footer__inner{max-width:960px;margin:0 auto}.footer__links{display:flex;flex-wrap:wrap;gap:16px 20px;margin-bottom:28px}.footer__link{color:#d1d5db;transition:color 0.2s;letter-spacing:0.02em;padding:4px 0;min-height:44px;display:inline-flex;align-items:center}.footer__link:hover{color:#fff;text-decoration:none}.footer__copyright{color:#6b7280;font-size:0.75rem;border-top:1px solid rgba(255,255,255,0.08);padding-top:20px;margin-top:8px;letter-spacing:0.02em}.breadcrumb{font-size:0.8125rem;color:#9ca3af;margin-bottom:24px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}.breadcrumb__item{color:#6b7280;letter-spacing:0.02em;transition:color 0.2s ease}.breadcrumb__item:hover{color:#059669}.breadcrumb__separator{color:#d1d5db;font-size:0.75rem}.breadcrumb__current{color:#374151;font-weight:500}.toolPage{background-color:#fff;border-radius:clamp(12px,2vw,16px);box-shadow:0 1px 3px rgba(0,0,0,0.06),0 4px 12px rgba(0,0,0,0.03);overflow:hidden;border:1px solid rgba(0,0,0,0.04)}.toolPage__header{padding:clamp(24px,4vw,36px) clamp(20px,3vw,32px) clamp(20px,3vw,24px);border-bottom:1px solid #f3f4f6}.toolPage__title{font-size:clamp(1.375rem,1.2rem+0.875vw,1.75rem);font-weight:700;color:#111827;line-height:1.4;letter-spacing:0.03em}.toolPage__description{margin-top:10px;font-size:0.9375rem;color:#6b7280;letter-spacing:0.02em;line-height:1.7}.toolPage__body{padding:clamp(20px,3vw,32px)}.toolPage__content{padding:clamp(28px,5vw,40px) clamp(20px,3vw,32px);border-top:1px solid #f3f4f6}.toolPage__content h2{font-size:clamp(1.25rem,1.1rem+0.75vw,1.375rem);font-weight:700;color:#111827;margin-top:36px;margin-bottom:14px;padding-left:14px;border-left:4px solid #059669;letter-spacing:0.04em;line-height:1.4}.toolPage__content h2:first-child{margin-top:0}.toolPage__updated{font-size:0.8125rem;color:#9ca3af;margin-bottom:24px}.toolPage__content h3{font-size:1.0625rem;font-weight:600;color:#374151;margin-top:28px;margin-bottom:10px;letter-spacing:0.03em}.toolPage__content p{margin-bottom:16px;color:#4b5563;line-height:1.9}.toolPage__content ul,.toolPage__content ol{margin-bottom:16px;padding-left:24px}.toolPage__content li{margin-bottom:8px;color:#4b5563;line-height:1.8}.toolInput{margin-bottom:24px}.toolInput__label{display:block;font-size:0.875rem;font-weight:600;color:#374151;margin-bottom:8px;letter-spacing:0.03em}.toolInput__field{width:100%;padding:14px 16px;font-size:1rem;border:1.5px solid #e5e7eb;border-radius:10px;background-color:#fff;color:#111827;transition:border-color 0.2s ease,box-shadow 0.2s ease;font-family:inherit;min-height:48px}.toolInput__field:focus{outline:none;border-color:#059669;box-shadow:0 0 0 3px rgba(5,150,105,0.1)}.toolInput__field_type_number{font-family:'Noto Sans JP',monospace;font-variant-numeric:tabular-nums}.toolInput__hint{margin-top:6px;font-size:0.8125rem;color:#6b7280}.toolInput__unit{display:inline-flex;align-items:center;gap:8px}.toolInput__unitText{font-size:0.9375rem;color:#6b7280;white-space:nowrap}.toolResult{background:linear-gradient(135deg,#ecfdf5 0%,#f0fdf4 100%);border:1.5px solid #a7f3d0;border-radius:16px;padding:clamp(20px,3vw,28px) clamp(16px,3vw,24px);margin:24px 0;animation:resultSlideIn 0.35s ease-out}.toolResult__title{font-size:0.75rem;font-weight:600;color:#065f46;margin-bottom:8px;letter-spacing:0.1em;text-transform:uppercase}.toolResult__value{font-size:clamp(1.75rem,1.5rem+1.25vw,2.5rem);font-weight:700;color:#064e3b;font-variant-numeric:tabular-nums;line-height:1.2}.toolResult__sub{font-size:0.875rem;color:#6b7280;margin-top:6px}.toolResult__breakdown{margin-top:16px;border-top:1px solid #a7f3d0;padding-top:16px}.toolResult__row{display:flex;justify-content:space-between;padding:8px 0;font-size:0.9375rem;gap:12px}.toolResult__row+.toolResult__row{border-top:1px solid rgba(167,243,208,0.4)}.toolResult__rowLabel{color:#4b5563;font-size:0.875rem}.toolResult__rowValue{font-weight:600;color:#111827;font-variant-numeric:tabular-nums;text-align:right}@keyframes resultSlideIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;font-size:1rem;font-weight:600;border:none;border-radius:10px;cursor:pointer;transition:all 0.2s ease;font-family:inherit;letter-spacing:0.04em;min-height:48px;-webkit-tap-highlight-color:transparent}.btn:focus-visible{outline:2px solid #059669;outline-offset:2px}.btn_type_primary{background-color:#059669;color:#fff;box-shadow:0 1px 3px rgba(5,150,105,0.2)}.btn_type_primary:hover{background-color:#047857;box-shadow:0 4px 12px rgba(5,150,105,0.25);transform:translateY(-1px)}.btn_type_primary:active{background-color:#065f46;transform:translateY(0);box-shadow:none}.btn_type_secondary{background-color:#f3f4f6;color:#374151}.btn_type_secondary:hover{background-color:#e5e7eb}.btn_type_secondary:active{background-color:#d1d5db}.btn_type_copy{background-color:#10b981;color:#fff;font-size:0.875rem;padding:10px 16px;border-radius:8px;min-height:44px}.btn_type_copy:hover{background-color:#059669}.btn_type_copy:active{background-color:#047857}.adSlot{min-height:90px;display:flex;align-items:center;justify-content:center;background-color:#f9fafb;border-radius:8px;margin:32px 0;overflow:hidden}.adSlot_position_top{min-height:100px}.adSlot_position_bottom{min-height:250px}.toolCard{display:block;background-color:#fff;border-radius:14px;padding:clamp(20px,3vw,24px);box-shadow:0 1px 3px rgba(0,0,0,0.04);transition:box-shadow 0.25s ease,transform 0.25s ease,border-color 0.25s ease;border:1px solid #e5e7eb;-webkit-tap-highlight-color:transparent}.toolCard:hover{box-shadow:0 8px 24px rgba(5,150,105,0.08),0 2px 8px rgba(0,0,0,0.04);transform:translateY(-4px);border-color:#a7f3d0;text-decoration:none}.toolCard:active{transform:translateY(0);box-shadow:0 1px 3px rgba(0,0,0,0.04)}.toolCard:focus-visible{outline:2px solid #059669;outline-offset:2px}.toolCard__icon{width:40px;height:40px;margin-bottom:16px;line-height:0}.toolCard__icon img{width:40px;height:40px}.toolCard__name{font-size:1.0625rem;font-weight:700;color:#111827;margin-bottom:8px;letter-spacing:0.03em}.toolCard__description{font-size:0.8125rem;color:#6b7280;line-height:1.7}.toolCard__badge{display:inline-block;font-size:0.6875rem;font-weight:600;padding:3px 10px;border-radius:6px;margin-top:12px;letter-spacing:0.04em}.toolCard__badge_type_popular{background-color:#fef3c7;color:#92400e}.toolCard__badge_type_new{background-color:#d1fae5;color:#065f46;animation:badgePulse 2s ease-in-out infinite}@keyframes badgePulse{0%,100%{opacity:1}50%{opacity:0.7}}.topHero{text-align:center;padding:clamp(36px,7vw,64px) 16px clamp(28px,5vw,48px)}.topHero__title{font-size:clamp(1.625rem,1.2rem+2.125vw,2.25rem);font-weight:700;color:#111827;letter-spacing:0.06em;line-height:1.3}.topHero__subtitle{font-size:clamp(0.875rem,0.8rem+0.375vw,1rem);color:#9ca3af;margin-top:10px;letter-spacing:0.04em}.toolGrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(280px,100%),1fr));gap:clamp(12px,2vw,20px);padding:0 16px clamp(32px,6vw,48px);max-width:960px;margin:0 auto}.topGuides{max-width:960px;margin:0 auto;padding:0 16px clamp(32px,6vw,48px)}.topGuides__title{font-size:clamp(1.25rem,1.1rem+0.75vw,1.5rem);font-weight:700;color:#111827;text-align:center;letter-spacing:0.04em}.topGuides__subtitle{font-size:0.875rem;color:#9ca3af;text-align:center;margin-top:6px;margin-bottom:clamp(20px,3vw,28px);letter-spacing:0.02em}.topGuides__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(280px,100%),1fr));gap:clamp(12px,2vw,16px)}.topGuides__card{display:block;background-color:#fff;border-radius:12px;padding:clamp(18px,3vw,24px);border:1px solid #e5e7eb;transition:box-shadow 0.25s ease,transform 0.25s ease,border-color 0.25s ease;position:relative}.topGuides__card:hover{box-shadow:0 8px 24px rgba(5,150,105,0.08);transform:translateY(-3px);border-color:#a7f3d0;text-decoration:none}.topGuides__cardBadge{display:inline-block;font-size:0.625rem;font-weight:700;padding:2px 8px;border-radius:4px;background-color:#d1fae5;color:#065f46;letter-spacing:0.06em;margin-bottom:8px}.topGuides__cardTitle{font-size:1rem;font-weight:700;color:#111827;margin-bottom:6px;letter-spacing:0.03em;line-height:1.5}.topGuides__cardDescription{font-size:0.8125rem;color:#6b7280;line-height:1.7}.topGuides__moreLink{display:block;text-align:center;margin-top:20px;font-size:0.875rem;font-weight:600;color:#059669;letter-spacing:0.02em}.topGuides__moreLink:hover{color:#047857;text-decoration:none}@media (hover:none){.topGuides__card:hover{transform:none;box-shadow:none;border-color:#e5e7eb}}.relatedTools{padding:clamp(20px,3vw,28px) clamp(20px,3vw,24px);border-top:1px solid #f3f4f6}.relatedTools__title{font-size:1rem;font-weight:700;color:#374151;margin-bottom:16px;letter-spacing:0.03em}.relatedTools__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(240px,100%),1fr));gap:12px}.faq{margin-top:28px}.faq__item{border-bottom:1px solid #f3f4f6;padding:18px 12px;margin-left:-12px;margin-right:-12px;border-radius:8px;transition:background-color 0.2s ease}.faq__item:last-child{border-bottom:none}.faq__item:hover{background-color:#f9fafb}.faq__question{font-weight:600;color:#111827;margin-bottom:8px;font-size:0.9375rem;letter-spacing:0.02em}.faq__answer{color:#4b5563;font-size:0.875rem;line-height:1.8}.aboutTable{width:100%;border-collapse:collapse;margin-bottom:24px}.aboutTable th,.aboutTable td{padding:14px 16px;border-bottom:1px solid #f3f4f6;text-align:left;font-size:0.9375rem}.aboutTable th{width:140px;font-weight:600;color:#374151;background-color:#f9fafb;white-space:nowrap}.aboutTable td{color:#4b5563}.contactForm__required{font-size:0.75rem;color:#ef4444;margin-left:4px}.srOnly{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}@media (max-width:479px){.aboutTable,.aboutTable thead,.aboutTable tbody,.aboutTable tr,.aboutTable th,.aboutTable td{display:block;width:100%}.aboutTable th{background-color:#f3f4f6;padding:10px 16px;font-size:0.8125rem}.aboutTable td{padding:12px 16px 16px}.header__nav{gap:6px}.header__navLink{font-size:0.75rem;white-space:nowrap}.toolCard:hover{transform:none}}@media (min-width:640px){.header{padding:14px 20px}.header__logoImage{height:36px}.toolPage__content h3{font-size:1.125rem}}@media (min-width:960px){.toolPage__content h2{font-size:1.5rem}}@media (hover:none){.toolCard:hover{transform:none;box-shadow:0 1px 3px rgba(0,0,0,0.04);border-color:#e5e7eb}.btn_type_primary:hover{transform:none}}@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important}}