:root{--bg-primary: #f7f6f2;--bg-secondary: #ffffff;--text-primary: #1c1e21;--text-secondary: #5c5f63;--text-caption: #8a8e91;--brand-sea: #8fafb1;--border-soft: rgba(28, 30, 33, .08);--radius-button: 16px;--radius-card: 14px;--font-serif: "Noto Serif TC", "Songti TC", serif;--font-sans: "Noto Sans TC", "PingFang TC", "Helvetica Neue", sans-serif;--app-content-max: 1600px;--sidebar-width: 200px;--nav-height: 56px;--feed-column-gap: 8px;--feed-column-count: 2}*,*:before,*:after{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;font-family:var(--font-sans);color:var(--text-primary);background:var(--bg-primary);-webkit-font-smoothing:antialiased}a{color:inherit}img{display:block;max-width:100%}.beta-app{min-height:100dvh;display:flex;flex-direction:column}.beta-sidebar{display:none}.beta-app-body{flex:1;width:100%;max-width:var(--app-content-max);margin:0 auto;padding-inline:10px;display:flex;flex-direction:column}.beta-app-bar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;width:100%;padding:10px 0;background:#f7f6f2f0;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-soft)}.beta-app-bar__brand{display:flex;flex-direction:column;gap:1px;text-decoration:none;color:inherit}.beta-app-bar__mark{font-family:var(--font-serif);font-size:20px;font-weight:600;letter-spacing:.08em;line-height:1.1}.beta-app-bar__sub{font-size:10px;letter-spacing:.35em;color:var(--text-caption)}.beta-app-bar__avatar{display:inline-flex;text-decoration:none}.beta-main{flex:1;width:100%;padding:6px 0 calc(var(--nav-height) + env(safe-area-inset-bottom,0px) + 16px)}.beta-nav{position:fixed;left:0;right:0;bottom:0;z-index:30;height:calc(var(--nav-height) + env(safe-area-inset-bottom,0px));display:grid;grid-template-columns:repeat(4,1fr);align-items:center;padding-bottom:env(safe-area-inset-bottom,0px);background:#f7f6f2f0;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--border-soft)}.beta-nav--mobile{display:grid}.beta-nav__item{display:flex;justify-content:center;text-decoration:none;color:var(--text-caption);font-size:13px;font-weight:500}.beta-nav__item.is-active{color:var(--text-primary)}.beta-page{display:flex;flex-direction:column;gap:16px}.beta-page--feed{gap:10px}.beta-page--auth{width:100%;max-width:420px;margin:0 auto;padding:20px 22px 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var(--border-soft)}.beta-btn--block{width:100%}.beta-auth__footer{margin-top:16px;text-align:center;color:var(--text-secondary);font-size:14px}.beta-auth__footer a{color:var(--text-primary);font-weight:600}.beta-empty{color:var(--text-caption);text-align:center;padding:24px 0;font-size:14px}.beta-profile{display:flex;flex-direction:column;gap:14px}.beta-profile__hero{display:flex;gap:14px;align-items:center}.beta-profile__name{margin:0;font-family:var(--font-serif);font-size:24px}.beta-profile__handle{margin:4px 0 0;color:var(--text-secondary);font-size:14px}.beta-profile__bio{margin:0;line-height:1.65;color:var(--text-secondary);font-size:15px}.beta-profile__stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.beta-stat{display:flex;flex-direction:column;gap:2px;text-align:center;padding:10px 4px;border-radius:12px;background:#ffffff8c;text-decoration:none;color:inherit}.beta-stat strong{font-size:17px;font-weight:600;line-height:1.2}.beta-stat 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var(--border-soft);border-radius:999px;background:var(--bg-secondary);font:inherit;font-size:15px}.chat-composer__send{height:44px;padding-inline:16px;flex-shrink:0}@media(min-width:768px){:root{--feed-column-gap: 12px;--feed-column-count: 3}.beta-app-body{padding-inline:clamp(24px,4vw,48px)}}@media(min-width:1100px){:root{--feed-column-gap: 14px;--feed-column-count: 4}.beta-app{flex-direction:row;align-items:stretch}.beta-sidebar{display:flex;flex-direction:column;width:var(--sidebar-width);flex-shrink:0;padding:28px 16px;border-right:1px solid 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var(--border-soft);border-radius:12px;background:var(--bg-secondary);font:inherit;font-size:15px;resize:vertical}.publish-form{display:flex;flex-direction:column;gap:14px}.publish-form__media-picker{display:inline-flex;align-items:center;justify-content:center;padding:12px 16px;border:1px dashed var(--border-soft);border-radius:12px;cursor:pointer;font-size:14px;color:var(--text-secondary)}.publish-form__media-picker input{display:none}.publish-form__previews{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px}.publish-form__preview{position:relative;margin:0}.publish-form__preview img{width:100%;height:auto;object-fit:contain;border-radius:10px;background:#0000000a}.publish-form__preview button{position:absolute;top:6px;right:6px;border:none;border-radius:999px;padding:4px 8px;font-size:11px;background:#1c1e21c7;color:#fff;cursor:pointer}.publish-form__progress{margin:0;font-size:13px;color:var(--text-caption)}.beta-page--post-detail{padding-bottom:24px}.beta-page--publish{max-width:560px;margin:0 auto}