:root{--ink-1: #1A1A1A;--ink-2: #2D2D2D;--ink-3: #4A4A4A;--ink-4: #6E6E6E;--ink-5: #9A9A9A;--ink-6: #BFBFBF;--line: #E5E5E5;--bg-soft: #F5F5F5;--bg: #FFFFFF;--font-serif: "Songti SC", "STSong", "Noto Serif SC", serif;--font-sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono: "SF Mono", "Menlo", "Monaco", "Consolas", "Liberation Mono", "Courier New", monospace;--font-price: "Inter", "Helvetica Neue", "PingFang SC", sans-serif;--font-display: "Inter", "PingFang SC", "Source Han Sans CN", sans-serif;--text-display: 1.125rem;--text-h1: 1rem;--text-h2: .875rem;--text-h3: .75rem;--text-body-lg: .875rem;--text-body: .8125rem;--text-body-sm: .75rem;--text-caption: .6875rem;--text-price-main: 1.125rem;--text-price-original: .6875rem;--text-button: .875rem;--line-display: 1.375rem;--line-h1: 1.25rem;--line-h2: 1.125rem;--line-h3: 1rem;--line-body-lg: 1.25rem;--line-body: 1.1875rem;--line-body-sm: 1.0625rem;--line-caption: .9375rem;--line-price-main: 1.375rem;--line-price-original: .9375rem;--line-button: 1.125rem;--font-weight-regular: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--space-2xs: .125rem;--space-xs: .25rem;--space-sm: .375rem;--space-md: .5rem;--space-lg: .75rem;--space-xl: 1rem;--space-2xl: 1.5rem;--space-3xl: 2rem;--space-4xl: 2.5rem;--space-5xl: 3.75rem;--space-6xl: 4.375rem;--r-sm: .25rem;--r-md: .5rem;--r-lg: 1rem;--r-pill: 31.21875rem;--shadow-soft: 0 .0625rem .1875rem rgba(0, 0, 0, .03);--shadow-pop: 0 .5rem 1.5rem rgba(0, 0, 0, .06);--shadow-float: 0 .875rem 2.5rem rgba(0, 0, 0, .08);--ease: cubic-bezier(.22, 1, .36, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--motion-fast: .15s var(--ease);--motion-base: .3s var(--ease);--motion-slow: .5s var(--ease);--max-w: 67.5rem;--max-w-narrow: 55rem}html{font-size:16px;background:var(--bg);color:var(--ink-1);font-family:var(--font-sans);line-height:1.5;font-weight:var(--font-weight-regular);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}body{margin:0;padding:0;min-height:100vh;background:var(--bg);color:var(--ink-1);font-family:var(--font-sans);overflow-x:hidden}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0}div,span,p,h1,h2,h3,h4,h5,h6,img,button,input,textarea,section,article,header,footer,main,nav,aside,figure{box-sizing:border-box}h1,h2,h3,h4,p{margin:0}button{margin:0;padding:0;border:none;background:transparent;background-color:transparent;line-height:normal;-webkit-appearance:none;-moz-appearance:none;appearance:none;color:inherit;font:inherit;cursor:pointer;text-align:center;-webkit-tap-highlight-color:transparent}button:after,button:before{border:none;background:transparent;background-color:transparent;content:none}input,textarea{margin:0;padding:0;background:transparent;border:none;outline:none;font:inherit;color:inherit;-webkit-appearance:none;-moz-appearance:none;appearance:none}textarea{resize:none}img,svg{display:block;max-width:100%;height:auto;vertical-align:middle}a{color:inherit;text-decoration:none;-webkit-tap-highlight-color:transparent}ul,ol{margin:0;padding:0;list-style:none}::selection{background:var(--ink-1);color:var(--bg)}.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}.text-ellipsis{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.text-ellipsis-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.text-ellipsis-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.safe-area-bottom{padding-bottom:env(safe-area-inset-bottom)}.safe-area-top{padding-top:env(safe-area-inset-top)}::-webkit-scrollbar{display:none;width:0;height:0;color:transparent}.page{min-height:100vh;background:var(--bg);padding-bottom:env(safe-area-inset-bottom);position:relative}.site-header{position:sticky;top:0;z-index:50;background:#ffffffeb;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--line)}.site-header__inner{display:flex;align-items:center;justify-content:space-between;padding:.5rem 1rem;padding-top:calc(.5rem + env(safe-area-inset-top));min-height:2.75rem;gap:1rem}.brand{display:flex;align-items:center;gap:.5rem}.brand__omp{height:1.375rem;width:auto;max-width:6rem;display:block}.brand__cross{font-family:var(--font-serif);font-size:.875rem;color:var(--ink-3);-webkit-user-select:none;user-select:none}.brand__jeri{height:.875rem;width:auto;max-width:5rem;display:block}.reveal{opacity:1;transform:translateY(0)}.page--ready .reveal{opacity:1;transform:translateY(0);animation:reveal-in .7s var(--ease) both}.reveal:not(.is-visible){opacity:0;transform:translateY(.75rem)}.reveal.is-visible{opacity:1;transform:translateY(0);animation:reveal-in .7s var(--ease) both}@keyframes reveal-in{0%{opacity:0;transform:translateY(.75rem)}to{opacity:1;transform:translateY(0)}}.section-num{font-family:var(--font-mono);font-size:var(--text-caption);letter-spacing:.18em;color:var(--ink-4);display:block;margin-bottom:.625rem}.section-num:after{content:"";display:inline-block;width:.25rem;height:.25rem;border-radius:50%;background:var(--ink-1);margin-left:.375rem;vertical-align:middle}.section-title{font-family:var(--font-serif);font-weight:var(--font-weight-medium);font-size:1.75rem;line-height:1.1;letter-spacing:-.02em;color:var(--ink-1)}.section-head{margin-bottom:2.25rem}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:2.75rem;padding:.625rem 1.75rem;border:2px solid var(--ink-1);border-radius:var(--r-pill);font-family:var(--font-sans);font-size:var(--text-button);font-weight:var(--font-weight-medium);letter-spacing:.04em;transition:all .35s var(--ease);cursor:pointer;user-select:none;-webkit-user-select:none;box-sizing:border-box}.btn--solid{background:var(--ink-1);color:var(--bg)}.btn--solid:active{background:var(--bg);color:var(--ink-1)}.btn--ghost{background:transparent;color:var(--ink-1)}.btn--ghost:active{background:var(--ink-1);color:var(--bg)}.btn--disabled,.btn[disabled]{opacity:.35;pointer-events:none}.bottom-bar{position:fixed;bottom:0;left:0;right:0;background:var(--bg);border-top:2px solid var(--line);padding:.5rem 1rem;padding-bottom:calc(.5rem + env(safe-area-inset-bottom));display:flex;align-items:center;gap:.75rem;z-index:100;box-sizing:border-box}.page__spacer{height:6.25rem}.omp-toast--mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:9999;display:flex;align-items:center;justify-content:center}.omp-toast{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:9999;pointer-events:none;opacity:0;transition:opacity .2s var(--ease, ease)}.omp-toast--visible{opacity:1}.omp-toast__inner{min-width:7rem;max-width:75%;padding:1rem 1.25rem;background:#000000c7;color:#fff;border-radius:.5rem;display:flex;flex-direction:column;align-items:center;gap:.5rem;pointer-events:auto;text-align:center}.omp-toast__text{font-size:var(--text-caption, .6875rem);line-height:1.4;word-break:break-all}.omp-toast__spinner{width:2.5rem;height:2.5rem;border:.1875rem solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:omp-toast-spin .8s linear infinite}@keyframes omp-toast-spin{to{transform:rotate(360deg)}}.omp-toast__check,.omp-toast__cross{width:2.5rem;height:2.5rem;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700}.omp-toast__check{background:#34c759;color:#fff}.omp-toast__cross{background:#ff3b30;color:#fff}