@layer theme{:root,:host{--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-font-family:Arial, "PingFang SC", "Microsoft YaHei", sans-serif;--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 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components;@layer utilities{.visible{visibility:visible}.static{position:static}.hidden{display:none}.lowercase{text-transform:lowercase}}:root{--ink:#202c27;--muted:#7a827c;--green:#315d4d;--line:#e5e8e2;--soft:#f4f6f1}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);-webkit-font-smoothing:antialiased;background:#fff;margin:0;font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit}button,a{transition:color .18s,background .18s,border-color .18s,transform .18s}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--green);outline-offset:5px}::selection{background:#dbe8db}.shell{width:min(1184px,100% - 96px);margin-inline:auto}.site-header{border-bottom:1px solid 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a:hover{color:var(--green)}.melody-feature{isolation:isolate;background:#eef2e9;border-radius:5px;flex-direction:column;min-height:355px;padding:23px 26px 19px;display:flex;position:relative;overflow:hidden}.feature-top{color:#6e7e69;letter-spacing:1px;justify-content:space-between;align-items:center;font-size:12px;display:flex}.feature-top>svg{width:17px}.record{z-index:-1;background:repeating-radial-gradient(circle,#272e28 0 1px,#343a32 2px 3px);border-radius:50%;width:240px;height:240px;transition:transform .6s;position:absolute;top:35px;right:-65px;transform:rotate(-20deg);box-shadow:-6px 7px 20px #20251b12}.melody-feature:hover .record{transform:rotate(-8deg)}.record-label{color:#31472f;background:#b5c5a6;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;gap:10px;display:flex;position:absolute;inset:65px}.record-label>span{font-family:Georgia,serif;font-size:18px;font-style:italic}.record-label small{letter-spacing:1.5px;font-size:5px}.record-label 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