:root{--ink:#182c40;--blue:#205d92;--muted:#627182;--line:#d8e0e8;--paper:#f1f5f8;--green:#087b50}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Noto Sans JP",Meiryo,sans-serif;line-height:1.7}button,a,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button{color:inherit}a{color:var(--blue)}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #f0ae3c;outline-offset:3px}button{border:0}button:disabled{cursor:not-allowed;opacity:.4}.masthead{height:106px;margin:0 5.4%;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.brand{text-decoration:none;display:flex;align-items:center;gap:15px;color:var(--ink);font-size:19px;font-weight:700}.brand small{display:block;font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.12em}.brand-mark{font:italic 700 32px Georgia,serif;background:var(--ink);color:white;display:grid;place-items:center;width:43px;height:43px;border-radius:11px}.pill{background:transparent;border:1px solid #c8d3de;border-radius:24px;padding:7px 15px;font-size:12px}.pill span{margin-left:15px}.layout{max-width:1300px;margin:0 auto;padding:45px 50px 28px;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(360px,1fr);gap:70px;align-items:center}.proposal-copy{padding-bottom:15px}.eyebrow{font-size:12px;letter-spacing:.18em;color:var(--blue);font-weight:700;margin:0 0 20px}h1{font-size:clamp(28px,3.05vw,43px);font-weight:650;letter-spacing:-.045em;line-height:1.65;margin:0 0 20px}h1 em{font-style:normal;color:var(--blue);font-size:1.25em}.lead{color:var(--muted);font-size:16px;line-height:1.95;margin:0 0 28px}.chapters{display:grid;gap:0}.chapter{display:flex;align-items:flex-start;gap:19px;text-align:left;background:transparent;padding:19px 18px;border-top:1px solid var(--line);width:100%;border-radius:0;transition:background .2s}.chapter.active{background:white;border-radius:10px;border-color:transparent;box-shadow:0 6px 24px #1a354707}.chapter strong{display:block;font-size:17px;font-weight:650}.chapter small{display:block;font-size:14px;color:var(--muted);margin-top:3px}.aim{display:block;font-size:12px;color:var(--blue);margin-top:6px}.number{font:italic 22px Georgia,serif;color:#8298aa;margin-top:2px}.active .number{color:var(--blue)}.arrow{margin-left:auto;color:#7890a3}.guide{display:flex;gap:16px;align-items:flex-start;margin:24px 18px 0}.guide-line{height:32px;flex:0 0 2px;background:#8cacc8;margin-top:5px}.guide p{font-size:13px;color:var(--muted);margin:0;line-height:1.9}.demo-area{width:100%;max-width:405px;justify-self:center}.demo-topline{display:flex;justify-content:space-between;align-items:center;margin:0 14px 12px;font-size:12px;letter-spacing:.04em;color:var(--muted)}.demo-topline button{background:none;font-size:12px;padding:0}.phone{border:7px solid #253545;border-radius:43px;background:#fff;box-shadow:0 32px 65px -28px #1c3a5866,0 0 0 1px #b4c0cc;overflow:hidden;height:724px;display:flex;flex-direction:column;position:relative}.statusbar{height:38px;flex-shrink:0;padding:7px 25px 0;display:flex;justify-content:space-between;font-size:12px;font-weight:700;position:relative}.island{width:90px;height:21px;background:#253545;border-radius:14px;position:absolute;left:50%;transform:translateX(-50%);top:5px}.phone-nav{height:64px;flex-shrink:0;display:flex;align-items:center;gap:12px;padding:0 14px;border-bottom:1px solid #e8edf1}.phone-nav button{background:none;font-size:29px;width:28px;padding:0}.phone-nav div{flex:1}.phone-nav strong{display:block;font-size:16px}.phone-nav small{display:block;font-size:11px;color:var(--muted)}.product-switch{display:flex;flex-shrink:0;gap:8px;padding:10px 16px;background:#fff;border-bottom:1px solid #e2e8ef}.product-switch button{flex:1;font-size:13px;border:1px solid #dce4eb;background:#f6f8fa;border-radius:20px;padding:5px}.product-switch button.selected{background:var(--ink);color:white;border-color:var(--ink)}#screen{flex:1;min-height:0;overflow:auto;background:#f7f9fb;scrollbar-width:thin;outline:none}#screen.chat{background:#c5d6e7}.phone-bottom{display:flex;flex-shrink:0;border-top:1px solid #e3e9ee;background:white;padding:8px 7px 2px}.phone-bottom button{flex:1;background:transparent;font-size:12px;padding:5px;border-right:1px solid #e3e9ee}.phone-bottom button:last-child{border-right:none}.home-indicator{margin:9px auto 7px;height:4px;width:110px;border-radius:4px;background:#253545;flex-shrink:0}.demo-caption{font-size:11px;text-align:center;color:var(--muted);margin:17px -12px 0}footer{max-width:1300px;margin:0 auto;padding:24px 50px;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:11px}footer button{background:none;white-space:nowrap;font-size:11px;color:var(--blue)}.date{text-align:center;font-size:11px;color:#526980;margin:15px auto}.date span{padding:3px 12px;border-radius:20px;background:#ffffff66}.bubble{background:white;margin:0 16px 18px 44px;border-radius:0 16px 16px 16px;padding:18px;position:relative}.avatar{position:absolute;left:-32px;top:0;font:italic 700 15px Georgia,serif;border-radius:50%;width:26px;height:26px;display:grid;place-items:center;color:white;background:var(--blue)}.bubble p{font-size:14px;margin:0 0 10px;line-height:1.8}.product-hero{height:134px;width:100%;object-fit:contain;mix-blend-mode:multiply}.product-label{font-size:11px;color:var(--muted);margin-top:8px}.model{font-size:21px;font-weight:650;letter-spacing:.03em;line-height:1.4}.product-description{font-size:12px;color:var(--muted)}.tag{font-size:11px;color:var(--green);display:inline-flex;align-items:center;gap:5px;margin:8px 0}.tag:before{content:'✓';font-weight:700}.primary,.secondary{width:100%;display:block;text-align:center;border-radius:8px;padding:11px 10px;font-size:14px;line-height:1.5;font-weight:600;text-decoration:none}.primary{background:var(--blue);color:#fff}.secondary{background:#fff;color:var(--blue);border:1px solid #cfdae5;margin-top:8px}.text-button{background:transparent;padding:7px 0;font-size:12px;text-decoration:underline;text-underline-offset:4px;color:var(--muted)}.page{padding:20px 18px 26px;animation:appear .2s ease-out}.page h2{font-size:21px;line-height:1.5;margin:0 0 5px}.sub{font-size:13px;color:var(--muted);margin:0 0 18px}.selected-product{display:flex;align-items:center;gap:13px;border:1px solid #dce5ed;border-radius:10px;padding:9px 12px;background:white;margin-bottom:20px}.selected-product img{width:50px;height:47px;object-fit:contain}.selected-product strong{font-size:14px;display:block}.selected-product small{font-size:11px;color:var(--muted)}.part-card{display:flex;align-items:center;gap:15px;width:100%;text-align:left;background:white;border:1px solid #dfe6ec;border-radius:12px;padding:15px 12px;margin-bottom:12px;transition:box-shadow .2s}.part-card:hover{box-shadow:0 6px 18px #20374b12}.part-card img{width:79px;height:83px;object-fit:contain}.part-card .part-body{flex:1}.part-card strong{font-size:14px;line-height:1.6;display:block}.part-card small{font-size:11px;color:var(--muted);display:block}.part-card .where{display:block;font-size:12px;color:var(--blue);margin-bottom:5px}.section-note{font-size:11px;color:var(--muted);margin:13px 0}.detail-image{width:100%;height:155px;object-fit:contain;background:white;border-radius:12px;margin-bottom:14px}.code{font-family:ui-monospace,monospace;font-size:12px;color:var(--muted);margin:5px 0 10px}.explanation{background:#edf3f8;border-radius:10px;padding:15px;margin:14px 0 18px;font-size:13px;line-height:1.8}.explanation strong{font-size:12px;color:var(--blue);display:block;margin-bottom:5px}.explanation p{margin:0}.detail-actions{margin-top:18px}.manual-card{background:white;border:1px solid var(--line);border-radius:13px;padding:22px;margin:15px 0}.manual-icon{font-size:12px;color:var(--blue);border:1px solid #c5d7e6;width:50px;height:64px;display:grid;place-items:center;margin-bottom:20px;border-radius:3px;background:#f6f9fc}.manual-card h3{font-size:19px;line-height:1.6;margin:0 0 4px}.manual-card p{font-size:13px;color:var(--muted);margin:0 0 20px}.tip{font-size:13px;color:var(--muted);margin:18px 0}.success-mark{width:52px;height:52px;background:#dfefe7;border-radius:50%;display:grid;place-items:center;color:var(--green);font-size:24px;margin-bottom:20px}.input-label{display:block;font-size:13px;font-weight:600;margin:18px 0 8px}.search{width:100%;padding:12px;border:1px solid #b5c5d4;border-radius:8px;background:white;min-width:0;font-size:16px}.choose-card{background:white;border:1px solid var(--line);width:100%;display:flex;align-items:center;gap:15px;padding:14px;border-radius:10px;margin:10px 0;text-align:left}.choose-card img{width:65px;height:65px;object-fit:contain}.choose-card strong{font-size:15px;display:block}.choose-card small{font-size:12px;color:var(--muted)}.choose-card span:last-child{margin-left:auto}.empty{padding:20px 0;font-size:13px;color:var(--muted)}dialog{max-width:530px;width:calc(100% - 32px);border:0;border-radius:18px;padding:35px;color:var(--ink);box-shadow:0 30px 90px #10213255}dialog::backdrop{background:#132b4477;backdrop-filter:blur(4px)}dialog h2{font-size:23px;line-height:1.6}dialog p{font-size:14px;color:var(--muted)}.close{position:absolute;top:12px;right:16px;background:none;font-size:25px}.source-links{display:grid;gap:8px;font-size:13px}@keyframes appear{from{opacity:.4;transform:translateY(5px)}to{opacity:1;transform:none}}@media(min-width:1400px){.layout{gap:100px}}@media(max-width:1000px){.layout{padding:30px;gap:30px;grid-template-columns:1fr 370px}h1{font-size:30px}.chapter{padding:15px 10px;gap:12px}.chapter strong{font-size:15px}.aim{font-size:11px}.lead{font-size:14px}}@media(max-width:760px){.masthead{height:80px;margin:0 22px}.brand{font-size:15px}.brand small{font-size:10px}.brand-mark{width:33px;height:33px;font-size:25px}.pill{font-size:10px;padding:5px 10px}.pill span{margin-left:3px}.layout{display:flex;flex-direction:column;padding:26px 18px 12px;gap:24px}.proposal-copy{width:100%;padding:0}.eyebrow{margin-bottom:10px;font-size:11px}h1{font-size:27px;line-height:1.5;margin-bottom:12px}h1 br{display:none}h1 em{font-size:1em}.lead{font-size:13px;margin-bottom:18px}.lead br{display:none}.chapters{display:flex;gap:6px}.chapter{flex:1;padding:10px 8px;border:1px solid var(--line);border-radius:8px;gap:6px;align-items:center;justify-content:center}.chapter .number{font-size:14px}.chapter strong{font-size:11px}.chapter small,.chapter .aim,.chapter .arrow{display:none}.guide{display:none}.demo-area{max-width:390px}.phone{height:720px;border-width:5px}.demo-caption{font-size:10px;margin-left:0;margin-right:0}footer{font-size:10px;padding:20px;display:block}footer button{display:block;margin-top:8px;padding:0}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* Proposal copy and distinct LINE chat / LIFF surfaces. */
[hidden]{display:none!important}
h1{font-size:clamp(28px,2.7vw,39px);line-height:1.65;letter-spacing:-.025em;font-weight:650}
.brand-mark{display:none}.lead{line-height:1.9}.demo-product-picker{display:flex;align-items:center;gap:12px;margin:0 8px 14px}.demo-product-picker>span{font-size:11px;color:var(--muted);white-space:nowrap}.demo-product-picker .product-switch{padding:0;background:transparent;border:0;flex:1;gap:6px}.demo-product-picker .product-switch button{font-size:11px;padding:4px 8px}.phone{height:740px}.phone.is-chat{background:#8daace}.phone.is-chat .statusbar{background:#8daace}.phone-nav{height:51px;background:#8daace;border:0;padding:0 16px;gap:18px;color:#172432}.phone-nav strong{flex:1;font-size:17px}.nav-back{font-size:34px;line-height:1}.nav-symbols{font-size:24px;letter-spacing:1px}.liff-nav{height:51px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 14px;border-bottom:1px solid #e5e5e5;font-size:14px;background:#fff}.liff-nav>button{font-size:29px;background:transparent;width:28px;padding:0}.liff-actions{display:flex;align-items:center;gap:13px}.liff-actions>span{font-size:12px}.liff-actions button{font-size:28px;background:transparent;padding:0 3px;line-height:1}.phone.is-chat .home-indicator{background:#172432}#screen.chat{background:#8daace}.chat .date{margin:12px 0 18px}.chat .date span{background:#6d8dafaa;color:white;font-size:10px}.message-row{display:flex;gap:8px;margin:0 15px 10px 10px;align-items:flex-start}.message-row .avatar{position:static;width:29px;height:29px;flex-shrink:0;background:#e5e9ef;color:#a4b1bf;font-size:15px;font-family:inherit}.sender-name{color:#253e58;font-size:10px;margin:-3px 0 4px 3px}.text-bubble{background:#fff;border-radius:13px;padding:10px 12px;font-size:13px;line-height:1.7;max-width:270px}.bubble.flex-card{margin:0 35px 0 47px;border-radius:13px;padding:0 17px 12px;overflow:hidden}.flex-card .product-hero{height:120px;margin-top:10px}.flex-card .product-label{font-size:11px}.flex-card .model{font-size:19px}.flex-card .tag{margin:5px 0 10px}.flex-card .primary{background:#06a858;border-radius:5px;font-size:13px;padding:10px}.flex-card .secondary{color:#008b48;border:0;border-radius:0;font-size:13px;margin:4px 0 0;padding:9px}.message-time{font-size:10px;color:#334e6e;margin:3px 36px 12px;text-align:right}.chat-controls{flex-shrink:0;background:white}.rich-menu{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #dae2e8;background:#fff}.rich-menu button{background:#f6f9fb;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;font-size:11px;min-height:86px;padding:10px 3px;border-right:1px solid #dce3e9;color:#234b68}.rich-menu button:last-child{border-right:0}.rich-menu button>span{font-size:25px;line-height:1.4;font-weight:400}.chat-toolbar{display:flex;align-items:center;height:43px;border-top:1px solid #e2e6eb}.chat-toolbar>button{background:white;font-size:14px;height:100%;padding:0 15px}.chat-toolbar>button:first-child{font-size:23px;border-right:1px solid #e2e6eb}.chat-toolbar #menu-toggle{flex:1;font-size:12px}.chat-toolbar #menu-toggle span{margin-left:10px}.page{padding-top:19px}.page h2{font-size:19px}@media(max-width:760px){h1{font-size:26px}h1 br{display:block}.lead br{display:none}.phone{height:740px}.demo-caption{font-size:10px}.demo-product-picker{margin-bottom:12px}}

/* Solid safe-area surface; no shadow used to fake the background. */
.phone-safe-area{height:24px;flex:0 0 24px;background:#fff;display:flex;align-items:center;justify-content:center}
.phone-safe-area .home-indicator{width:110px;height:4px;margin:0;border-radius:4px;background:#253545;box-shadow:none}
.rich-menu{grid-template-columns:repeat(2,minmax(0,1fr))}
.rich-menu button{min-height:59px;flex-direction:row;gap:8px;padding:9px 5px;border-bottom:1px solid #dce3e9;font-size:12px}
.rich-menu button>span{font-size:21px}.rich-menu button:nth-child(2n){border-right:0}.rich-menu button:nth-last-child(-n+2){border-bottom:0}
:root{--blue:#286e65;--ink:#223e3a;--muted:#677e79;--paper:#f0f5f2;--line:#d5e1dc}.scenario-note{font-size:11px;color:var(--muted);margin:0 12px 14px}.cartridge-art{display:block;width:100%;height:140px;background:#f7faf8;border-radius:12px;margin:10px 0 15px}.card-note{font-size:11px!important;color:var(--muted)}.data-card{background:white;border:1px solid var(--line);border-radius:12px;padding:5px 14px;margin:18px 0}.info-row{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding:14px 0;font-size:12px}.info-row:last-child{border:0}.info-row span{color:var(--muted)}.info-row strong{text-align:right}.explanation{background:#e7f0eb}.phone .primary{background:#286e65}.phone .flex-card .primary{background:#06a858}.flex-card .cartridge-art{height:105px}.selected-product{margin-top:12px}.page .cartridge-art{height:120px}
:root{--ink:#343b42;--blue:#b95337;--muted:#777b7d;--paper:#f6f4f0;--line:#e2ddd6}.layout{max-width:1330px}.rich-menu{grid-template-columns:repeat(3,minmax(0,1fr))}.rich-menu button{min-height:83px;flex-direction:column;color:#343b42;font-size:11px;border-bottom:0!important;border-right:1px solid #dce3e9!important}.rich-menu button:last-child{border-right:0!important}.phone .primary{background:var(--blue)}.phone .flex-card .primary{background:#06a858}.chat-toolbar>span{padding:0 15px;border-right:1px solid #e2e6eb}.time-switch{display:flex;gap:6px;margin:0 10px 13px}.time-switch button{flex:1;border:1px solid var(--line);background:transparent;border-radius:20px;font-size:11px;padding:5px}.time-switch button.selected{background:var(--ink);color:#fff;border-color:var(--ink)}.scenario-note{margin-bottom:8px}.message-row{margin-left:18px}.sender-name{margin:0 0 5px}.bubble.flex-card{margin-left:18px;margin-right:35px;padding:17px}.flex-card h2{font-size:19px;margin:8px 0}.flex-card p{font-size:13px}.card-label{font-size:11px;letter-spacing:.08em;color:var(--muted)}.schedule-time{font-size:30px;font-weight:650;letter-spacing:-.035em;line-height:1.5;margin:7px 0}.schedule-date{font-size:17px;font-weight:600}.card-note{line-height:1.8}.page .sub{margin-bottom:15px}.data-card{margin:15px 0}.explanation{background:#f3ece3}.badge{display:inline-block;border-radius:5px;background:#f4eadc;color:#8e5a25;padding:3px 9px;font-size:11px}.badge.done{background:#e0f1e7;color:#17744e}.confirm-note{font-size:12px;color:#805934;background:#f7eee2;border-radius:8px;padding:12px;margin:18px 0}.form-grid{display:grid;grid-template-columns:1fr 85px;gap:12px}select,textarea{font:inherit}textarea.search{resize:vertical;min-height:90px;font-size:14px}.step{font-size:11px;color:var(--blue);letter-spacing:.1em;margin-bottom:10px}.check-row{display:flex;align-items:flex-start;gap:12px;background:white;border:1px solid var(--line);border-radius:9px;padding:14px;margin:10px 0;font-size:13px;cursor:pointer}.check-row input{accent-color:var(--blue);width:19px;height:19px;flex-shrink:0;margin-top:3px}.check-row small{display:block;color:var(--muted);font-size:11px;margin-top:4px}.check-row:has(input:checked){background:#f1f5f1}.progress{height:5px;background:#e7e2da;border-radius:5px;margin:13px 0 20px;overflow:hidden}.progress span{display:block;height:100%;background:var(--blue);transition:width .2s}.receipt{border-left:3px solid #c79751;padding:12px 15px;background:#fff8ee;margin:18px 0}.receipt strong{font-size:14px}.receipt p{font-size:12px;margin:6px 0 0}.box-art{width:100%;height:76px;margin-bottom:12px}.user-reply{margin:12px 15px 15px auto;padding:10px 13px;border-radius:13px;background:#a5e883;max-width:220px;font-size:12px}.phone .phone-nav strong{font-size:15px}.page button:disabled{opacity:.65}.info-row strong{overflow-wrap:anywhere}.page .primary,.page .secondary{min-height:43px}@media(max-width:420px){.layout{padding-left:14px;padding-right:14px}.demo-area{max-width:100%}.phone{height:710px}.masthead{margin:0 18px}.brand{font-size:15px}.pill{font-size:10px;padding:6px 10px}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}