.otc-sg{--sg-bg:#090a0d;--sg-panel:#111217;--sg-line:#303138;--sg-accent:#ff651c;color:#f6f6f7;background:var(--sg-bg);font-family:Kanit,system-ui,sans-serif;letter-spacing:0;padding:clamp(24px,5vw,80px) clamp(16px,4vw,56px);max-width:1440px;margin:auto;box-sizing:border-box}.otc-sg *{box-sizing:border-box;letter-spacing:0}.otc-sg__intro{margin-bottom:32px}.otc-sg__eyebrow,.otc-sg__top,.otc-sg__result-label,.otc-sg__compare article>span{font-size:11px;font-weight:600;color:var(--sg-accent)}.otc-sg__intro h1{font-family:inherit;font-weight:700;font-size:clamp(42px,8vw,100px);line-height:1.05;margin:14px 0}.otc-sg__intro h1 em{font-style:normal;color:var(--sg-accent)}.otc-sg p{line-height:1.75}.otc-sg__intro p{color:#b9bac0;font-size:clamp(14px,2vw,18px);margin:0}.otc-sg__grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:stretch}.otc-sg__panel{background:linear-gradient(145deg,#15161b,#0b0c0f);border:1px solid var(--sg-line);border-radius:18px;padding:clamp(20px,3vw,36px);min-width:0}.otc-sg__top{display:flex;justify-content:space-between;gap:12px;color:#a6a6af;font-size:10px}.otc-sg__top span:first-child{color:var(--sg-accent)}.otc-sg h2{font-size:clamp(24px,3vw,38px);line-height:1.25;margin:24px 0 10px;font-weight:600}.otc-sg__figure{display:block;width:100%;height:auto;max-height:370px;margin:8px auto 22px}.otc-sg__steps{padding-left:25px;margin:0;display:grid;gap:12px;color:#d6d6d9;font-size:14px;line-height:1.7}.otc-sg__steps li::marker{color:var(--sg-accent);font-weight:700}.otc-sg__muted{color:#9fa0a8;margin:0 0 22px}.otc-sg__tabs{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:22px 0}.otc-sg__tabs button{background:#191a20;border:1px solid #393b43;color:#d8d8dc;padding:16px 12px;border-radius:10px;font:600 16px Kanit,system-ui,sans-serif;cursor:pointer;transition:background .2s,border-color .2s}.otc-sg__tabs button small{display:block;font-size:12px;font-weight:400;color:#a8a9b0;margin-top:3px}.otc-sg__tabs button.is-active{background:#291b16;border-color:var(--sg-accent);color:#ff8b52}.otc-sg__tabs button:focus-visible,.otc-sg input:focus-visible,.otc-sg select:focus-visible{outline:2px solid var(--sg-accent);outline-offset:3px}.otc-sg__fieldlabel{display:block;font-size:13px;margin-bottom:9px}.otc-sg__inputrow{display:grid;grid-template-columns:minmax(0,1fr) 130px;gap:10px}.otc-sg__inputrow input,.otc-sg__inputrow select{width:100%;background:#08090c;border:1px solid #3b3c44;border-radius:10px;color:#fff;padding:14px;font:500 17px Kanit,system-ui,sans-serif;min-height:52px}.otc-sg__result{background:radial-gradient(ellipse at 85% 5%,rgba(255,101,28,.13),transparent 65%),#0b0c10;border:1px solid #513020;border-radius:14px;padding:22px;margin:20px 0}.otc-sg__size{font-size:clamp(65px,8vw,110px);font-weight:700;line-height:1;color:var(--sg-accent);margin:10px 0}.otc-sg__result strong{font-size:17px}.otc-sg__result p{font-size:13px;color:#c5c5ca;margin:7px 0 0}.otc-sg__notice{border-left:3px solid var(--sg-accent);padding:5px 0 5px 16px}.otc-sg__notice strong{font-size:14px}.otc-sg__notice p,.otc-sg__fine{font-size:12px;color:#a9a9b0;margin:5px 0}.otc-sg__fine{margin-top:22px}.otc-sg__bottom{padding:45px 0 0}.otc-sg__bottom h2{margin:8px 0 25px}.otc-sg__compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}.otc-sg__compare article{border-top:1px solid var(--sg-line);padding:22px 0}.otc-sg__compare h3{font-size:28px;margin:6px 0}.otc-sg__compare p{color:#b7b7be;margin:0;font-size:14px}@media(max-width:760px){.otc-sg__grid,.otc-sg__compare{grid-template-columns:1fr}.otc-sg__top{font-size:9px}.otc-sg__intro h1{font-size:clamp(40px,11vw,70px)}.otc-sg__panel{padding:20px}.otc-sg__bottom{padding-top:28px}}/* V1.1 — size comparison editorial layout */
.otc-sg__bottom{padding:clamp(36px,5vw,72px) 0 0}.otc-sg__bottom-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:24px;padding-bottom:22px;border-bottom:1px solid #292a30}.otc-sg__bottom-heading h2{font-size:clamp(42px,6vw,76px);line-height:1.05;margin:10px 0 12px;font-weight:700}.otc-sg__heading-dot{color:var(--sg-accent)}.otc-sg__bottom-lead{color:#aeb0b8;font-size:14px;margin:0}.otc-sg__size-marker{font-size:11px;color:#747781;white-space:nowrap;padding-bottom:5px}.otc-sg__compare{gap:16px}.otc-sg__fit-card{position:relative;overflow:hidden;min-width:0;border:1px solid #303139!important;border-radius:16px;padding:clamp(20px,3vw,32px)!important;background:linear-gradient(135deg,#16171d 0%,#0b0c10 75%)}.otc-sg__fit-card::after{content:"";position:absolute;right:-90px;top:-120px;width:280px;height:280px;border:1px solid rgba(255,101,28,.13);border-radius:50%;pointer-events:none}.otc-sg__fit-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.otc-sg__fit-top>span:first-child{font-size:11px;color:var(--sg-accent);font-weight:600}.otc-sg__fit-pill{border:1px solid #393b43;border-radius:99px;padding:5px 11px;color:#bbbcc4;font-size:11px}.otc-sg__fit-card h3{font-size:clamp(32px,4vw,52px);line-height:1.1;margin:28px 0 2px;font-weight:700}.otc-sg__fit-sub{color:#9d9fa8!important;font-size:12px!important;margin:0 0 26px!important}.otc-sg__fit-metric{display:grid;grid-template-columns:minmax(0,1fr) auto 25px minmax(0,1fr) auto;gap:10px;align-items:center;padding:19px 0;border-top:1px solid #303139;border-bottom:1px solid #303139;margin-bottom:18px}.otc-sg__fit-metric>span{font-size:11px;color:#a4a6af}.otc-sg__fit-metric strong{font-size:28px;line-height:1;color:#f8f8f9;white-space:nowrap}.otc-sg__fit-metric strong small{font-size:11px;font-weight:400;color:#a4a6af}.otc-sg__fit-metric .otc-sg__fit-arrow{color:var(--sg-accent);font-size:20px;text-align:center}.otc-sg__fit-metric .otc-sg__fit-size{color:var(--sg-accent);font-size:38px}.otc-sg__fit-card>p:last-child{font-size:13px;color:#b9bac2;line-height:1.8;margin:0}.otc-sg__fit-foot{display:flex;gap:12px;align-items:start;margin-top:17px}.otc-sg__fit-foot-icon{flex:none;width:19px;height:19px;border:1px solid #555861;border-radius:50%;font-size:12px;color:#c8c9d0;display:grid;place-items:center}.otc-sg__fit-foot p{font-size:12px;color:#999ca5;margin:0;line-height:1.7}@media(max-width:900px){.otc-sg__fit-metric{grid-template-columns:1fr auto 18px 1fr auto;gap:5px}.otc-sg__fit-metric strong{font-size:23px}.otc-sg__fit-metric .otc-sg__fit-size{font-size:30px}}@media(max-width:760px){.otc-sg__bottom-heading{align-items:start}.otc-sg__size-marker{display:none}.otc-sg__compare{grid-template-columns:1fr}.otc-sg__fit-metric{gap:8px}.otc-sg__fit-card h3{margin-top:20px}}/* V1.2 — wide editorial layout,no cramped side-by-side panels */
.otc-sg{max-width:1600px;width:100%;padding:clamp(24px,4vw,64px) clamp(16px,3vw,48px)}.otc-sg__grid{display:flex;flex-direction:column;gap:24px}.otc-sg__panel{padding:clamp(22px,3.5vw,48px);border-radius:20px}.otc-sg__panel h2{font-size:clamp(28px,3.6vw,48px);margin:22px 0 18px}.otc-sg__measure-body{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:clamp(26px,5vw,76px);align-items:center}.otc-sg__visual{min-width:0;background:radial-gradient(circle at 50% 50%,rgba(255,101,28,.045),transparent 62%);border:1px solid #272930;border-radius:14px;padding:clamp(10px,2vw,22px)}.otc-sg__figure{width:100%;max-height:none;margin:0;aspect-ratio:520/370}.otc-sg__steps{padding:0 0 0 30px;gap:22px;font-size:clamp(14px,1.2vw,17px);line-height:1.8}.otc-sg__calc-body{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(24px,4vw,68px);align-items:start}.otc-sg__controls{padding-top:8px}.otc-sg__tabs{margin:0 0 28px;gap:14px}.otc-sg__tabs button{min-height:100px;font-size:19px}.otc-sg__fieldlabel{font-size:15px}.otc-sg__inputrow{grid-template-columns:minmax(0,1fr) 160px}.otc-sg__inputrow input,.otc-sg__inputrow select{min-height:62px}.otc-sg__result{margin:0 0 22px;padding:clamp(24px,3vw,40px)}.otc-sg__size{font-size:clamp(80px,10vw,128px)}.otc-sg__notice{margin-top:16px}.otc-sg__fine{margin-top:20px}.otc-sg__bottom{padding-top:clamp(40px,5vw,70px)}@media(max-width:850px){.otc-sg__measure-body,.otc-sg__calc-body{grid-template-columns:1fr;gap:24px}.otc-sg__steps{gap:12px}.otc-sg__figure{max-height:420px}.otc-sg__tabs button{min-height:76px}}@media(max-width:480px){.otc-sg{padding:24px 12px}.otc-sg__panel{padding:20px 16px}.otc-sg__inputrow{grid-template-columns:minmax(0,1fr) 115px}.otc-sg__tabs button{font-size:16px}.otc-sg__figure{max-height:none}.otc-sg__fit-metric{grid-template-columns:1fr auto;gap:8px}.otc-sg__fit-metric .otc-sg__fit-arrow{display:none}.otc-sg__fit-metric>span:nth-of-type(2){grid-column:1}.otc-sg__fit-metric strong{grid-column:2}}/* V1.3 — Unisex size chart */
.otc-sg__chart{border:1px solid #303139;border-radius:18px;padding:clamp(20px,3vw,40px);background:linear-gradient(140deg,#15161b,#0b0c0f);margin:28px 0 24px}.otc-sg__chart-head{display:flex;justify-content:space-between;align-items:center;gap:20px}.otc-sg__chart h2{font-size:clamp(28px,4vw,48px);margin:10px 0}.otc-sg__chart-head p,.otc-sg__chart-note{font-size:13px;color:#a9abb4;margin:0}.otc-sg__unit-switch{display:flex;gap:4px;background:#202127;border:1px solid #383941;border-radius:99px;padding:4px;flex:none}.otc-sg__unit-switch button,.otc-sg__chart-types button,.otc-sg__fit-choice button{font:500 14px Kanit,system-ui,sans-serif;color:#bcbec7;background:transparent;border:0;cursor:pointer;padding:9px 17px;border-radius:99px}.otc-sg__unit-switch button.is-active,.otc-sg__chart-types button.is-active,.otc-sg__fit-choice button.is-active{background:#ff651c;color:#111}.otc-sg__chart-types{display:flex;gap:8px;margin:24px 0 16px}.otc-sg__chart-types button{border:1px solid #34353e;border-radius:8px}.otc-sg__table-scroll{overflow-x:auto;max-width:100%;border:1px solid #33343c;border-radius:10px}.otc-sg__table-scroll table{border-collapse:collapse;min-width:760px;width:100%;text-align:center}.otc-sg__table-scroll th,.otc-sg__table-scroll td{padding:19px 12px;border-bottom:1px solid #2c2d34;border-right:1px solid #2c2d34;font-size:14px}.otc-sg__table-scroll thead th{color:#fff;background:#25262d}.otc-sg__table-scroll tbody th{text-align:left;color:#eee;background:#1a1b20;white-space:nowrap}.otc-sg__table-scroll tbody td{color:#b7b9c1}.otc-sg__table-scroll tbody td:nth-child(3){color:#ff8d55;font-weight:600;background:rgba(255,101,28,.06)}.otc-sg__chart-note{margin-top:15px;line-height:1.8}.otc-sg__fit-choice{display:flex;gap:8px;margin:0 0 24px;flex-wrap:wrap}.otc-sg__fit-choice button{border:1px solid #34353e;border-radius:8px}.otc-sg button:focus-visible,.otc-sg__table-scroll:focus-visible{outline:2px solid #ff651c;outline-offset:3px}@media(max-width:600px){.otc-sg__chart-head{align-items:start;flex-direction:column}.otc-sg__chart{padding:20px 14px}.otc-sg__chart-types{margin-top:18px}}/* V1.4 — unified typography,chart sizing,embedded-page heading hierarchy */
.otc-sg{max-width:1440px;padding:clamp(22px,3vw,48px) clamp(16px,3vw,40px)}.otc-sg__intro .otc-sg__hero-title{font-family:inherit;font-size:clamp(34px,5.2vw,68px);font-weight:700;line-height:1.12;letter-spacing:-.025em;margin:12px 0 16px;overflow-wrap:normal}.otc-sg__intro .otc-sg__hero-title em{font-style:normal;color:var(--sg-accent)}.otc-sg h2:not(.otc-sg__hero-title){font-size:clamp(24px,2.6vw,36px);line-height:1.2}.otc-sg__chart{margin:24px 0;padding:clamp(20px,2.6vw,34px)}.otc-sg__table-scroll table{min-width:870px;table-layout:fixed}.otc-sg__table-scroll th,.otc-sg__table-scroll td{padding:16px 8px;font-size:13px}.otc-sg__table-scroll th:first-child{width:118px}.otc-sg__table-scroll tbody td:nth-child(3){color:#b7b9c1;background:transparent;font-weight:400}.otc-sg__table-scroll tbody td:nth-child(4){color:#ff8d55;background:rgba(255,101,28,.06);font-weight:600}.otc-sg__panel{padding:clamp(20px,2.7vw,36px)}.otc-sg__bottom-heading h2{font-size:clamp(32px,4vw,52px)!important}.otc-sg__intro{margin-bottom:20px}@media(max-width:600px){.otc-sg__intro .otc-sg__hero-title{font-size:clamp(31px,8.5vw,48px)}.otc-sg__chart{padding:18px 12px}.otc-sg__table-scroll table{min-width:800px}.otc-sg__table-scroll th,.otc-sg__table-scroll td{padding:14px 6px;font-size:12px}}/* V1.5 — clearly informational fit guidance,separate from interactive calculator */
.otc-sg__advice{margin-top:clamp(30px,4vw,54px);border-top:1px solid #303139;padding-top:clamp(26px,3vw,40px)}.otc-sg__advice-heading{max-width:850px}.otc-sg__advice-heading h2{font-size:clamp(25px,2.7vw,36px)!important;margin:10px 0 8px}.otc-sg__advice-heading p{color:#aeb0b8;font-size:14px;margin:0 0 24px}.otc-sg__advice-items{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.otc-sg__advice-item{display:flex;gap:18px;align-items:start;border:1px solid #303139;border-radius:14px;background:#111217;padding:clamp(18px,2.5vw,28px);min-width:0}.otc-sg__advice-number{font-size:13px;font-weight:700;color:#ff651c;flex:none;padding-top:4px}.otc-sg__advice-item h3{font-size:clamp(17px,1.8vw,22px);font-weight:600;line-height:1.4;margin:0 0 10px}.otc-sg__advice-item p{font-size:14px;line-height:1.8;color:#b9bac2;margin:0}.otc-sg__advice-note{border-left:2px solid #ff651c;padding-left:16px;margin:22px 0 0;color:#aeb0b8;font-size:13px;line-height:1.8}@media(max-width:760px){.otc-sg__advice-items{grid-template-columns:1fr}.otc-sg__advice-item{padding:20px}.otc-sg__advice-heading p{font-size:13px}}/* V1.5.2 — contextual guidance under existing size chart */
.otc-sg__type-advice{margin-top:16px;padding:16px 20px;border:1px solid rgba(255,101,28,.35);border-left:3px solid #ff651c;border-radius:10px;background:rgba(255,101,28,.055)}.otc-sg__type-advice-label{display:block;color:#ff8b4d;font-size:13px;font-weight:600;margin-bottom:5px}.otc-sg__type-advice p{margin:0;color:#e3e3e8;font-size:14px;line-height:1.75}@media(max-width:600px){.otc-sg__type-advice{padding:14px 15px}.otc-sg__type-advice p{font-size:13px}}