@layer theme{:root,:host{--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-font-family:var(--font-proza-libre), var(--font-noto-sans-tc);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.block{display:block}.flex{display:flex}.h-full{height:100%}.min-h-full{min-height:100%}.flex-1{flex:1}.resize{resize:both}.flex-col{flex-direction:column}.bg-page{background-color:var(--background)}.font-heading{font-family:var(--font-noto-serif-tc), serif}.text-brand{color:var(--brand)}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}}:root{--background:#f4f4f4;--foreground:#3f5046;--brand:#3f5046;--brand-muted:#5c6b63;--line:#d8ddd9;--ink-dark:#252525;--ink-light:#f4f4f4;--grid-gap:20px;--page-max:1200px;--page-pad:15px;--section-gap:60px;--title-size:22px;--kicker-size:13px;--tracking:.08em;--carousel-peek:32px}html{overflow-x:clip}body{background:var(--background);color:var(--foreground);font-family:var(--font-proza-libre), var(--font-noto-sans-tc), "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;letter-spacing:var(--tracking);font-weight:400;overflow-x:clip}.font-heading{font-family:var(--font-noto-serif-tc), "Noto Serif TC", "Songti TC", "PMingLiU", serif;letter-spacing:var(--tracking);font-weight:500}.page-shell{width:100%;max-width:var(--page-max);padding-inline:var(--page-pad);margin-inline:auto}.site-header{background:var(--background)}.site-header-inner{justify-content:center;padding-block:16px;display:flex}.site-logo{width:100px;height:auto}.calc-page,.calc-body{gap:var(--section-gap);flex-direction:column;display:flex}.calc-page{width:100%;padding-bottom:0}.hero-split{grid-template-columns:1fr;width:100%;display:grid;overflow:hidden}.hero-photo{background:#1a1a1a;min-height:280px;position:relative}.hero-photo img{object-fit:cover;object-position:center;width:100%;height:280px;display:block}.hero-copy{background:var(--ink-dark);color:var(--ink-light);text-align:center;align-items:center;gap:var(--grid-gap);box-sizing:border-box;flex-direction:column;min-width:0;padding:28px 20px 32px;display:flex}.hero-stack{align-items:center;gap:var(--grid-gap);text-align:center;flex-direction:column;width:100%;display:flex}.hero-heading{grid-template-columns:max-content auto;justify-content:center;justify-items:center;gap:8px 6px;display:grid}.hero-kicker{font-size:var(--kicker-size);letter-spacing:.16em;color:#f4f4f4b8;grid-column:1;margin:0;font-weight:400}.hero-title{display:contents}.hero-title-text,.section-title,.tools-banner-inner h2{font-size:var(--title-size);margin:0;line-height:1.35}.hero-title-text{grid-column:1}.hero-heading .help-tip{grid-column:2;align-self:center}.plan-card-title{flex-wrap:wrap;justify-content:flex-start;align-items:center;gap:6px;display:flex}.section-title-row{align-items:center;gap:12px;min-height:36px;display:flex}.section-title-row .section-title{flex:none}.help-tip{font-size:calc(var(--title-size) * .82);flex:none;display:inline-flex;position:relative}.plan-card-title .help-tip{font-size:.9em}.help-tip-btn{color:#3f5046;cursor:pointer;background:0 0;border:0;border-radius:999px;justify-content:center;align-items:center;width:1em;height:1em;padding:0;display:inline-flex}.help-tip--dark .help-tip-btn{color:#fff}.help-tip-btn svg{width:100%;height:100%;display:block}.help-tip-pop{z-index:40;box-sizing:border-box;width:min(280px,100vw - 24px);max-width:calc(100vw - 24px);color:var(--brand);overflow-wrap:anywhere;word-break:break-word;background:#fff;border-radius:6px;padding:12px 14px;font-size:14px;font-weight:400;line-height:1.7;position:fixed;box-shadow:0 8px 24px #2525251f}.measure-diagram{justify-content:center;width:100%;margin:0;display:flex}.measure-diagram-svg{width:100%;max-width:280px;height:auto;display:block}.carousel-nav{color:var(--brand-muted);align-items:center;gap:8px;margin-left:auto;font-size:14px;display:none}.carousel-nav-btn{width:28px;height:28px;color:inherit;cursor:pointer;background:0 0;border:0;font-size:22px;line-height:1}.carousel-nav-btn:disabled{opacity:.35}.wall-scroller{align-items:stretch;gap:var(--grid-gap);scroll-snap-type:x mandatory;scrollbar-width:none;margin-top:var(--grid-gap);overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch;padding-bottom:4px;display:flex;overflow-x:auto}.wall-scroller::-webkit-scrollbar{display:none}.wall-card,.add-wall-card{flex:0 0 calc((100% - var(--grid-gap) - var(--carousel-peek)) / 2);scroll-snap-align:start}.calc-card{background:#ececec;border-radius:8px;padding:20px;overflow:visible}.wall-card-head{justify-content:space-between;align-items:center;gap:var(--grid-gap);margin-bottom:16px;display:flex}.wall-card-head h3{flex-wrap:wrap;flex:1;align-items:baseline;min-width:0;margin:0;font-family:inherit;font-size:16px;font-weight:700;line-height:1.4;display:flex}.wall-card-area{white-space:nowrap}.wall-delete{color:var(--brand-muted);cursor:pointer;background:0 0;border:0;flex:none;padding:0;font-size:16px;font-weight:400;line-height:1}.wall-fields{gap:var(--grid-gap);grid-template-columns:1fr;display:grid}.wall-fields label{gap:8px;display:grid}.calc-input{border:1px solid var(--line);width:100%;color:var(--brand);background:#fff;border-radius:6px;outline:none;padding:12px}.total-area-btn,.add-wall-card,.banner-btn{box-sizing:border-box;border-radius:8px;min-height:48px;font-family:inherit;font-size:16px;font-weight:400}.total-area-btn{margin:var(--grid-gap) 0 0;color:var(--brand-muted);background:#fff;border:0;justify-content:center;align-items:center;display:flex}.total-area-btn.is-ready{background:var(--ink-dark);color:var(--ink-light)}.add-wall-card{border:2px solid var(--brand);color:var(--brand);cursor:pointer;background:#fff;justify-content:center;align-items:center;padding:20px;display:flex}.add-wall-card:hover,.add-wall-card:active,.add-wall-card:focus-visible{color:#fff;background:#3f5046;border-color:#3f5046}.plan-grid{gap:var(--grid-gap);margin-top:var(--grid-gap);grid-template-columns:1fr;align-items:stretch;display:grid}.plan-card{grid-template-columns:minmax(108px,.95fr) minmax(0,1fr) minmax(0,1fr);align-items:stretch;gap:12px;display:grid}.plan-card-label{text-align:left;flex-direction:column;justify-content:center;align-items:flex-start;gap:4px;min-width:0;display:flex}.plan-card-method{margin:0;font-size:14px;font-weight:400}.plan-card-title{flex-wrap:nowrap;margin:0;font-family:inherit;font-size:16px;font-weight:700;line-height:1.4}.plan-stat{text-align:center;background:#fff;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:8px;min-height:88px;padding:12px 8px;display:flex}.plan-stat p{flex-direction:column;gap:2px;min-width:0;margin:0;display:flex}.plan-stat--pair{flex-flow:row;justify-content:center;align-items:center;gap:4px 16px}.plan-stat--pair>p{flex:none;min-width:0}@media (max-width:420px){.plan-stat--pair{flex-flow:column wrap}}.plan-stat span{color:var(--brand-muted);font-size:13px}.plan-stat strong{font-size:16px;font-weight:700}.tools-banner{width:100%;min-height:360px;color:var(--ink-light);position:relative;overflow:hidden}.tools-banner-image{object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.tools-banner-content{z-index:1;background:linear-gradient(#14141494 0%,#141414c2 100%);min-height:360px;position:relative}.tools-banner-inner{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:16px;min-height:360px;padding-block:32px;display:flex}.tools-banner-inner h2{margin:0}.tools-banner-inner p{max-width:36rem;margin:0;line-height:1.8}.tools-banner-desktop-br{display:none}.tools-banner-actions{gap:var(--grid-gap);grid-template-columns:1fr 1fr;width:min(100%,440px);display:grid}.banner-btn,.add-wall-card,.calc-input,.wall-delete,.plan-card-method,.plan-card-title,.wall-card-head h3{letter-spacing:var(--tracking)}.banner-btn{color:#252525;box-shadow:none;background:#f4f4f4;border:0;justify-content:center;align-items:center;text-decoration:none;display:flex;transform:none}.banner-btn:hover,.banner-btn:focus-visible{color:#fff;box-shadow:none;background:#3f5046;transform:none}@media (min-width:750px){:root{--page-pad:50px;--title-size:24px;--kicker-size:14px}.hero-split{grid-template-columns:minmax(0,2fr) minmax(320px,1fr)}.hero-photo,.hero-copy{min-height:460px}.hero-photo img{height:100%;position:absolute;inset:0}.hero-copy{text-align:center;justify-content:center;align-items:center;padding:40px 72px 40px 28px}.carousel-nav{display:flex}.wall-card,.add-wall-card{flex-basis:calc((100% - 2 * var(--grid-gap) - var(--carousel-peek)) / 3)}.wall-fields,.plan-grid{grid-template-columns:1fr 1fr}.plan-card{gap:var(--grid-gap);grid-template-columns:minmax(92px,1fr) 1.15fr 1.15fr}.tools-banner-content{background:linear-gradient(90deg,#25252526 20%,#25252573 100%)}.tools-banner-inner{text-align:right;align-items:flex-end;padding-block:48px}.tools-banner-desktop-br{display:block}}