@charset "UTF-8";
:root{--paper:#f6f6f6;--gray:#eeeeee;--ink:#323232;--muted:#767676;--line:#dddddd;--accent:#646464}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--paper);color:var(--ink);font-family:'Helvetica Neue',Arial,'Hiragino Kaku Gothic ProN','Noto Sans JP',sans-serif;line-height:1.8;font-size:15px}button,input,select{font:inherit;color:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button{border:0;background:none}button:hover,a:hover{opacity:.76}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid #747474;outline-offset:4px}.announcement{height:31px;background:#e6e6e6;text-align:center;font-size:10px;letter-spacing:2px;line-height:31px}.announcement span{padding:0 18px;color:#999}header{height:91px;display:flex;align-items:center;justify-content:space-between;padding:0 5.5%;border-bottom:1px solid var(--line);background:#f6f6f5ed;position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}.logo{width:163px;max-height:65px;object-fit:contain;mix-blend-mode:multiply;display:block}nav{display:flex;gap:35px;font-size:12px}.store{font-size:11px;border-bottom:1px solid #777;padding-bottom:3px}main{max-width:1600px;margin:auto}.crumb{margin:26px 5.5%;font-size:10px;color:#878787;letter-spacing:.06em}.hero{display:grid;grid-template-columns:1fr 1fr;min-height:550px;padding:30px 5.5% 64px;gap:5%}.eyebrow{font-size:10px;letter-spacing:2.5px;font-weight:500;margin:0 0 20px}.hero-copy{align-self:center}h1{font-family:'Yu Mincho','Hiragino Mincho ProN',serif;font-size:clamp(32px,3.6vw,54px);font-weight:400;line-height:1.7;letter-spacing:.1em;margin:14px 0 22px}.lead{font-size:14px;line-height:2.1;color:#727272}.primary{display:inline-flex;align-items:center;justify-content:space-between;gap:38px;background:#393939;color:white;padding:17px 25px;font-size:13px;line-height:1.5}.hero .primary{margin-top:25px;min-width:275px}.text-link{display:block;font-size:11px;margin-top:17px;color:#686868}.hero-art{background:linear-gradient(125deg,#e9e9e9,#f1f1f1 50%,#e0e0e0);position:relative;display:flex;align-items:center;justify-content:center;gap:12px;min-height:445px;padding:65px 24px 75px}.art-label{position:absolute;top:26px;left:28px;font-size:8px;letter-spacing:2px}.hero-product{width:48%;padding:10px;background:#fff;box-shadow:9px 15px 22px #3333330b;transform:translateY(-22px);text-align:center}.hero-product img{display:block;width:100%;aspect-ratio:1;object-fit:contain}.hero-product span{display:block;font-size:9px;letter-spacing:3px;padding:12px 0}.hero-product.second{transform:translateY(30px)}.hero-art>p{position:absolute;bottom:18px;left:28px;font-size:10px;letter-spacing:.1em}.intro-line{margin:0 5.5%;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:23px 0;display:flex;align-items:center;gap:40px}.intro-line>span{font-size:13px;font-weight:bold;white-space:nowrap}.intro-line p{font-size:12px;color:#787878;margin:0}.intro-line>a{font-size:10px;margin-left:auto}.section{padding:85px 5.5%}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:33px}.section-heading .eyebrow{margin-bottom:13px}h2{font-size:25px;font-weight:400;letter-spacing:.07em;line-height:1.6;margin:0}.section-heading>p{font-size:12px;color:#808080;margin:0 0 3px;line-height:1.9}.purpose-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.purpose-grid button{text-align:left;position:relative;background:#ededed;padding:25px 25px 28px;border:1px solid transparent;transition:.2s}.purpose-grid button:hover{background:#e4e4e4;border-color:#c8c8c8;opacity:1}.purpose-grid .num{font-size:9px;letter-spacing:2px;color:#797979;display:block;margin-bottom:18px}.purpose-grid strong{font-size:17px;font-weight:500;display:block}.purpose-grid span:not(.num){font-size:11px;color:#7f7f7f;display:block;margin-top:6px}.purpose-grid b{position:absolute;right:22px;top:22px;font-weight:400;color:#7f7f7f}.extra-links{display:flex;justify-content:flex-end;gap:25px;padding-top:22px}.extra-links button{font-size:11px;border-bottom:1px solid #c8c8c8;padding:0 0 4px}.guide{background:#eeeeee}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:38px}.guide-grid article{border-top:1px solid #c0c0c0;padding:18px 0 0}.guide-no{font-family:Georgia,serif;font-size:28px;color:#9e9e9e}.guide-grid h3{font-weight:500;font-size:18px;margin:8px 0 15px}.guide-grid p{font-size:13px;color:#707070;line-height:2}.guide-grid small{font-size:10px;line-height:1.8;color:#747474;display:block}.guide-note{font-size:11px;border-top:1px solid #d9d9d9;padding-top:12px;margin-top:22px}.grit{display:flex;margin:20px 0 13px;gap:4px}.grit span{flex:1;background:#e2e2e2;text-align:center;font-family:Georgia,serif;padding:9px;font-size:20px}.grit span:nth-child(2){background:#d8d8d8}.grit span:nth-child(3){background:#cfcfcf}.grit small{font-family:Arial,sans-serif;font-size:9px}.safety{margin-top:32px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0}.safety summary{font-size:12px}.safety p{font-size:12px;color:#6c6c6c;max-width:900px}.filters{display:flex;gap:25px;justify-content:space-between}.searchbox{display:flex;align-items:center;gap:12px;border-bottom:1px solid #b2b2b2;min-width:300px;width:46%;padding:5px 0}.searchbox span{font-size:27px}.searchbox input{width:100%;background:transparent;border:0;font-size:13px;outline-offset:6px}.filter-selects{display:flex;gap:20px}.filter-selects label{font-size:10px;color:#7b7b7b;display:flex;flex-direction:column}.filter-selects select{border:0;border-bottom:1px solid #bebebe;background:transparent;font-size:12px;padding:7px 15px 7px 0;min-height:35px}.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:25px}.chips button{font-size:11px;border:1px solid #d8d8d8;padding:8px 16px;border-radius:2px}.chips button.active{background:#4f4f4f;color:white;border-color:#4f4f4f}.result-line{display:flex;align-items:center;justify-content:space-between;font-size:11px;margin-top:17px}.result-line button{font-size:10px;color:#808080}.category-note{font-size:12px;color:#737373;background:#ebebeb;padding:13px 17px;margin:0 0 25px}.products{display:grid;grid-template-columns:repeat(4,1fr);gap:34px 20px}.product{min-width:0;display:flex;flex-direction:column}.product-img{background:#fff;position:relative;border:1px solid #e8e8e8}.product-img img{display:block;width:100%;height:auto;aspect-ratio:1;object-fit:contain}.product-code{font-size:8px;letter-spacing:1px;color:#9d9d9d;margin:13px 0 3px}.product h3{font-size:14px;line-height:1.7;font-weight:500;margin:4px 0 9px;min-height:46px}.product .desc{font-size:11px;color:#7e7e7e;margin:0 0 10px;line-height:1.8}.tags{display:flex;gap:5px;flex-wrap:wrap;min-height:22px}.tag{font-size:8px;background:#ebebeb;padding:3px 6px;color:#6e6e6e}.price{font-size:18px;letter-spacing:.03em;margin:15px 0 10px;margin-top:auto;padding-top:13px}.price small{font-size:9px;letter-spacing:0;color:#909090}.product-link{display:block;border-top:1px solid #d2d2d2;border-bottom:1px solid #d2d2d2;padding:11px 0;font-size:11px;display:flex;justify-content:space-between}.compare-label{font-size:10px;color:#767676;display:flex;gap:7px;align-items:center;margin-top:12px;cursor:pointer;min-height:28px}.compare-label input{accent-color:#505050;width:14px;height:14px}.price-note{font-size:10px;color:#8e8e8e;margin-top:35px}.faq{background:#eeeeee}.faq>h2{margin-bottom:32px}.faq details{border-top:1px solid #d5d5d5;padding:20px 0}.faq details:last-child{border-bottom:1px solid #d5d5d5}summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;font-size:13px}summary::-webkit-details-marker{display:none}details p{font-size:12px;line-height:2;color:#757575;max-width:900px;padding-right:30px}details[open] summary span{transform:rotate(45deg)}.closing{text-align:center;padding:80px 25px;background:#e7e7e7}.closing h2{font-family:'Yu Mincho',serif;font-size:28px;line-height:1.8}.closing .primary{margin-top:30px}footer{padding:50px 5.5% 100px;display:flex;align-items:center;gap:25px;flex-wrap:wrap}footer .wordmark{font-family:Georgia,serif;font-size:33px;letter-spacing:5px}footer p,footer a{font-size:10px}footer a{margin-left:auto}footer small{width:100%;font-size:9px;color:#9f9f9f;letter-spacing:1px}.comparebar{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);background:#fff;box-shadow:0 4px 30px #2222;z-index:50;padding:12px 18px;display:flex;align-items:center;gap:22px;border:1px solid #dadada;max-width:95%;width:max-content}.comparebar[hidden]{display:none}.comparebar>span{font-size:12px}.comparebar>button:not(.primary){font-size:11px}.comparebar .primary{padding:13px 18px;font-size:11px}dialog{max-width:980px;width:94%;max-height:85vh;border:0;background:#f6f6f6;padding:30px}dialog::backdrop{background:#252b26a0;backdrop-filter:blur(3px)}.dialog-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.dialog-head h2{font-size:19px}.dialog-head button{font-size:22px}#comparecontent{overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:520px;font-size:12px}td,th{border-bottom:1px solid #dadada;padding:14px;text-align:left;vertical-align:top}th{width:90px;font-weight:400;font-size:11px;color:#727272}td img{width:100px;display:block;margin-bottom:10px}td .primary{font-size:11px;padding:12px}#toast{position:fixed;top:130px;left:50%;transform:translateX(-50%);background:#353535;color:white;padding:10px 20px;z-index:100;font-size:12px;display:none}.empty{grid-column:1/-1;text-align:center;padding:65px 20px;border:1px solid #dadada}.empty button{border-bottom:1px solid;padding-bottom:5px}.mobile{display:none}
@media(min-width:1400px){.hero{min-height:630px}.hero-art{min-height:500px}}@media(max-width:900px){nav{gap:18px}.products{grid-template-columns:repeat(3,1fr)}.hero{gap:3%}.hero-art{min-height:370px;padding:60px 17px}.intro-line{gap:20px}.intro-line>a{display:none}.section{padding:60px 5.5%}.section-heading>p{max-width:200px}.purpose-grid button{padding:20px 17px}.purpose-grid strong{font-size:15px}.guide-grid{gap:23px}.filters{flex-direction:column;gap:15px}.searchbox{width:100%}.filter-selects{justify-content:space-between}}@media(max-width:600px){header{height:70px;padding:0 6%}.logo{width:130px;max-height:48px}nav{display:none}.store{font-size:10px}.announcement{font-size:8px;letter-spacing:1.3px;height:26px;line-height:26px}.crumb{font-size:9px;margin:18px 6%}.hero{grid-template-columns:1fr;padding:20px 6% 35px;gap:35px;min-height:0}h1{font-size:34px;line-height:1.65}.hero .eyebrow{font-size:9px;margin-bottom:18px}.hero-copy{padding:5px 0 0}.lead{font-size:13px;line-height:2}.hero .primary{width:100%;margin-top:20px;padding:17px 20px}.text-link{text-align:center;font-size:11px}.hero-art{min-height:330px;padding:48px 38px 58px}.hero-product{max-width:170px}.hero-product span{font-size:8px;padding:7px}.hero-art>p{font-size:9px;bottom:10px;left:20px}.art-label{font-size:7px;left:20px;top:20px}.intro-line{margin:0 6%;padding:20px 0;display:block}.intro-line>span{font-size:12px}.intro-line p{font-size:11px;margin-top:7px}.section{padding:48px 6%}.section-heading{display:block;margin-bottom:25px}.section-heading>p{max-width:none;margin-top:13px;font-size:11px}.section-heading>p br{display:none}.eyebrow{font-size:9px;letter-spacing:2px}h2{font-size:21px}.purpose-grid{grid-template-columns:repeat(2,1fr);gap:9px}.purpose-grid button{padding:18px 12px;min-height:145px}.purpose-grid .num{font-size:8px;letter-spacing:1px;margin-bottom:20px}.purpose-grid strong{font-size:13px;letter-spacing:-.03em}.purpose-grid span:not(.num){font-size:10px;line-height:1.7;margin-top:8px}.purpose-grid b{right:12px;top:12px;font-size:12px}.extra-links{justify-content:flex-start;flex-wrap:wrap;gap:15px;margin-top:4px}.extra-links button{font-size:10px}.guide-grid{grid-template-columns:1fr;gap:25px}.guide-grid article{position:relative;padding-left:44px}.guide-no{position:absolute;left:0;top:15px;font-size:23px}.guide-grid h3{font-size:16px;margin:3px 0 12px}.guide-grid p{font-size:12px}.guide-note{margin-top:15px}.grit{max-width:300px}.safety{margin-top:25px}.filter-selects{gap:10px}.filter-selects label{max-width:58%;font-size:9px}.filter-selects select{width:100%;font-size:11px}.chips{gap:6px;margin-top:20px}.chips button{font-size:10px;padding:7px 10px}.products{grid-template-columns:repeat(2,minmax(0,1fr));gap:27px 13px}.product h3{font-size:12px;min-height:42px}.product .desc{font-size:10px}.product-code{font-size:8px}.price{font-size:16px}.product-link{font-size:10px}.category-note{font-size:10px;padding:11px 12px}.price-note{font-size:9px}.faq summary{font-size:12px}.closing{padding:55px 6%}.closing h2{font-size:25px}.comparebar{padding:10px;gap:12px;bottom:10px}.comparebar>span{font-size:10px}.comparebar .primary{font-size:10px;padding:12px}.comparebar>button:not(.primary){font-size:10px}footer{padding:35px 6% 100px;gap:12px}footer a{margin-left:0;width:100%}footer .wordmark{font-size:27px}.desktop{display:none}.mobile{display:block}dialog{padding:20px}.dialog-head h2{font-size:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.logo{filter:invert(1);mix-blend-mode:multiply}
/* Mobile shopping layout: readable copy, large touch targets, shorter route to products. */
.mobile-nav{display:none}
@media(max-width:600px){
html{scroll-padding-top:78px}body{font-size:16px;line-height:1.75;padding-bottom:calc(65px + env(safe-area-inset-bottom))}main{display:flex;flex-direction:column}main>*{min-width:0}.crumb{order:0}.hero{order:1}.intro-line{order:2}#purpose{order:3}#catalog{order:4}#guide{order:5}#faq{order:6}.closing{order:7}
.announcement{display:none}header{height:62px;padding:0 20px}.logo{width:139px}.store{font-size:13px;padding:10px 0}.crumb{margin:16px 20px 0;font-size:11px}.hero{padding:23px 20px 26px;gap:0}.hero-art{display:none}.hero-copy{padding:0}h1{font-size:31px;line-height:1.55;letter-spacing:.05em;margin:12px 0 15px}.hero .eyebrow{font-size:11px;margin:0}.lead{font-size:16px;line-height:1.85;margin:0}.lead .mobile{display:none}.hero .primary{font-size:16px;min-height:54px;margin-top:21px}.text-link{font-size:14px;min-height:44px;display:flex;justify-content:center;align-items:center;margin-top:5px}.intro-line{margin:0 20px;padding:17px 0}.intro-line>span{font-size:15px}.intro-line p{font-size:14px;line-height:1.8}.section{padding:35px 20px}.eyebrow,.hero .eyebrow{font-size:11px;letter-spacing:1.5px}h2{font-size:23px;letter-spacing:.025em}.section-heading{margin-bottom:23px}.section-heading>p{font-size:14px;line-height:1.8}.purpose-grid{gap:10px}.purpose-grid button{min-height:133px;padding:16px 12px}.purpose-grid .num{font-size:10px;margin-bottom:12px;letter-spacing:1px}.purpose-grid strong{font-size:15px;line-height:1.6}.purpose-grid span:not(.num){font-size:12px;line-height:1.6}.purpose-grid b{font-size:15px}.extra-links{gap:8px;display:grid;grid-template-columns:1fr;margin-top:8px}.extra-links button{font-size:14px;text-align:left;min-height:46px;padding:8px 0;border-bottom:1px solid #d2d2d2}
.catalog{border-top:1px solid #d8d8d8}.searchbox{min-width:0;background:white;border:1px solid #bbb;padding:8px 12px;min-height:52px;width:100%}.searchbox input{font-size:16px;min-width:0}.filter-selects{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:12px}.filter-selects label{max-width:none;font-size:12px;gap:5px;color:#555}.filter-selects select{font-size:16px;min-height:48px;background:#fff;border:1px solid #ccc;padding:9px 6px;min-width:0}.chips{gap:8px;margin-top:20px}.chips button{font-size:13px;padding:10px 12px;min-height:44px}.result-line{font-size:14px;gap:10px;margin-top:14px}.result-line button{font-size:12px;min-height:44px;color:#555}.category-note{font-size:14px;line-height:1.8;padding:14px;margin-bottom:22px;color:#555}
.products{grid-template-columns:1fr;gap:24px}.product{display:grid;grid-template-columns:116px minmax(0,1fr);column-gap:15px;row-gap:6px;padding-bottom:23px;border-bottom:1px solid #d4d4d4}.product-img{grid-column:1;grid-row:1 / 6;align-self:start}.product-code{grid-column:2;margin:0;font-size:11px;color:#666}.product h3{grid-column:2;font-size:16px;line-height:1.65;min-height:0;margin:0;font-weight:500;overflow-wrap:anywhere}.product .desc{grid-column:2;font-size:14px;line-height:1.75;margin:0;color:#5a5a5a}.tags{grid-column:2;min-height:0;gap:5px}.tag{font-size:11px;padding:3px 7px;color:#555}.price{grid-column:2;font-size:22px;line-height:1.5;margin:3px 0 4px;padding:0}.price small{font-size:12px;color:#555}.product-link{grid-column:1 / -1;font-size:15px;min-height:48px;align-items:center;background:#3c3c3c;color:white;padding:11px 15px;border:0}.compare-label{grid-column:1 / -1;font-size:14px;color:#555;min-height:44px;margin:0;gap:10px}.compare-label input{width:20px;height:20px}.price-note{font-size:12px;line-height:1.8;margin-top:24px;color:#666}
.guide-grid h3{font-size:18px}.guide-grid p{font-size:15px;line-height:1.85;color:#555}.guide-grid small{font-size:12px;color:#555}.guide-note{font-size:13px}.grit small{font-size:12px}.safety summary{font-size:15px;min-height:44px;align-items:center}.safety p,details p{font-size:14px;color:#555;padding-right:0}.faq summary{font-size:16px;line-height:1.7;min-height:44px;align-items:center}.faq details{padding:15px 0}.closing{padding:35px 20px}.closing h2{font-size:24px}.closing .primary{font-size:15px;min-height:50px}footer{padding:30px 20px 25px}footer p,footer a{font-size:13px}footer a{min-height:44px;display:flex;align-items:center}footer small{font-size:11px}
.mobile-nav{display:grid;grid-template-columns:repeat(3,1fr);position:fixed;bottom:0;left:0;right:0;background:#fffffff5;border-top:1px solid #ccc;z-index:40;padding:6px 12px calc(6px + env(safe-area-inset-bottom));backdrop-filter:blur(12px)}.mobile-nav a{display:flex;align-items:center;justify-content:center;font-size:14px;min-height:48px;color:#333}.mobile-nav a+a{border-left:1px solid #ddd}.comparebar{bottom:calc(72px + env(safe-area-inset-bottom));width:calc(100% - 24px);max-width:none;gap:10px;padding:10px}.comparebar>span{font-size:13px;white-space:nowrap}.comparebar>button:not(.primary){font-size:13px;min-height:44px}.comparebar .primary{font-size:13px;min-height:44px;flex:1;padding:10px}.dialog-head h2{font-size:18px}.dialog-head button{min-width:44px;min-height:44px}dialog{padding:16px}table{font-size:14px}th{font-size:13px}td .primary{font-size:13px}.empty{font-size:15px;padding:35px 15px}
}
@media(max-width:360px){.section{padding-left:16px;padding-right:16px}.product{grid-template-columns:96px minmax(0,1fr);column-gap:12px}.purpose-grid strong{font-size:14px}.comparebar{gap:6px}.comparebar .primary{font-size:12px}.hero h1{font-size:28px}}

@media(max-width:600px){.lead .mobile{display:block}}

/* Decorative bits from the supplied PSD; fade behind the introductory copy. */
main{
  background-image:linear-gradient(to right,var(--paper) 35%,rgba(246,246,246,.8) 55%,rgba(246,246,246,0) 85%),url("assets/bits-background-v2.webp");
  background-position:right top,right top;
  background-size:100% 700px,auto 700px;
  background-repeat:no-repeat;
}
@media(max-width:600px){
  main{
    background-image:linear-gradient(to right,var(--paper) 35%,rgba(246,246,246,.88) 52%,rgba(246,246,246,.15) 78%,rgba(246,246,246,0)),url("assets/bits-background-v2.webp");
    background-size:100% 600px,auto 600px;
  }
}