:root{--bg:#f7f8f4;--surface:#fff;--surface-soft:#f0f4ee;--text:#26352b;--muted:#647066;--border:#dce4dc;--accent:#45624e;--accent-hover:#344f3d;--accent-soft:#eaf0e8;--danger:#a33d35;--danger-soft:#fff0ed;--warning:#805b16;--warning-soft:#faf2de;--radius-card:16px;--radius-control:10px;--shadow:0 8px 28px #26352b0d;--motion:.18s ease;font-synthesis:none;color:var(--text);background:var(--bg);letter-spacing:0;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Noto Sans CJK SC,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100dvh;margin:0}button,input,textarea,select{font:inherit;letter-spacing:inherit}button,summary{cursor:pointer}button,a,input,textarea,select,summary{transition:background-color var(--motion), border-color var(--motion), color var(--motion), box-shadow var(--motion), transform 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24px;display:grid}.desktop-nav{flex-direction:column;height:100dvh;padding:44px 0 28px;display:flex;position:sticky;top:0}.wordmark{color:var(--text);text-align:left;background:0 0;border:0;padding:0 16px 36px;font-family:Songti SC,STSong,Georgia,serif;font-size:32px;font-weight:700}.wordmark span{color:var(--accent);letter-spacing:.18em;margin-top:6px;font-family:inherit;font-size:12px;display:block}.desktop-nav nav{gap:8px;display:grid}.desktop-nav nav button{min-height:50px;color:var(--muted);text-align:left;background:0 0;border:0;align-items:center;gap:14px;padding:12px 16px;font-size:15px;display:flex}.desktop-nav nav button:hover{background:var(--surface-soft);color:var(--accent)}.desktop-nav nav button.active{background:var(--accent-soft);color:var(--accent);font-weight:600}.desktop-nav p{max-width:140px;color:var(--muted);margin:auto 16px 0;font-size:12px;line-height:1.9}.app-main{flex-direction:column;min-width:0;display:flex}.page{flex:1;min-height:calc(100dvh - 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button:hover{background:var(--accent-soft);color:var(--accent)}.record-list{margin-top:24px}.record-list article{border:1px solid var(--border);background:var(--surface);border-radius:16px;margin-bottom:16px;padding:22px}.record-open{width:100%;color:var(--text);text-align:left;background:0 0;border:0;padding:0}.record-open span{color:var(--muted);font-size:12px}.record-open strong{margin-top:10px;font-size:20px;font-weight:600;display:block}.record-open p{color:var(--muted);font-size:16px}.record-action{color:var(--danger);background:0 0;border:0;padding:8px 0;font-size:14px}.settings-section{padding-top:24px}.toggle-row{justify-content:space-between;align-items:center;gap:20px;display:flex}.toggle-row strong,.interest-editor>strong{font-size:16px}.toggle-row p,.interest-editor p{color:var(--muted);font-size:14px;line-height:1.8}.toggle-row input{width:24px;height:24px}.interest-editor{margin-top:24px}.interest-editor>div{flex-wrap:wrap;gap:12px;display:flex}.interest-editor label{border:1px solid var(--border);background:var(--surface);border-radius:10px;align-items:center;gap:8px;min-height:44px;padding:10px 14px;font-size:14px;display:flex}.danger-zone{color:var(--danger);border:1px solid #edd5cf;border-radius:16px;margin-top:40px;padding:24px}.danger-zone p{color:var(--muted);font-size:14px;line-height:1.8}.danger-zone button{background:var(--surface);color:var(--danger);border:1px solid #edd5cf;padding:8px 14px;font-size:14px}.site-footer{border-top:1px solid var(--border);color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding:24px 0 32px;font-size:12px;display:flex}.site-footer a{color:var(--muted);padding:8px 0;text-decoration:none}.site-footer a:hover{color:var(--accent);text-decoration:underline}.auth-error-icon{background:var(--warning-soft);width:48px;height:48px;color:var(--warning);border-radius:12px;place-items:center;display:grid}.auth-error-dialog>small{color:var(--muted);margin-top:16px;font-size:12px;display:block}.auth-error-actions{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:24px;display:grid}.auth-error-actions button{border:1px solid var(--border);background:var(--surface);color:var(--accent);padding:10px;font-size:14px}.auth-error-actions button.dark{border-color:var(--accent);background:var(--accent);color:#fff}.email-login-button{border:1px solid var(--border);background:var(--surface);width:100%;color:var(--accent);margin-top:12px;padding:12px;font-size:14px}.email-auth-dialog .email-code-hint{margin:16px 0 0;font-size:14px}.email-auth-dialog .change-email{color:var(--accent);background:0 0;border:0;margin-top:8px;padding:8px 0;font-size:14px;text-decoration:underline}.other-login-methods{border-top:1px solid var(--border);margin-top:24px;padding-top:20px;font-size:14px}.other-login-methods summary{min-height:44px;color:var(--muted);padding:10px 0}.other-login-methods p{color:var(--muted);line-height:1.8}@media (width<=1199px){.app-shell{grid-template-columns:170px minmax(0,1fr);gap:24px}.right-rail{display:none}.feed-head{align-items:flex-start}.feed-head h1{font-size:28px}}@media (width<=767px){.app-shell{padding:0 20px;display:block}.desktop-nav{display:none}.page{padding:24px 0 36px}.app-main{padding-bottom:calc(76px + env(safe-area-inset-bottom))}.mobile-nav{z-index:50;min-height:calc(72px + env(safe-area-inset-bottom));padding:8px 12px calc(8px + env(safe-area-inset-bottom));border-top:1px solid var(--border);background:var(--surface);grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;display:grid;position:fixed;inset:auto 0 0}.mobile-nav button{color:var(--muted);background:0 0;border:0;align-content:center;place-items:center;gap:5px;padding:8px 0;font-size:12px;display:grid}.mobile-nav button.active{background:var(--accent-soft);color:var(--accent);font-weight:600}.feed-head{flex-direction:column;gap:12px;padding:24px 20px}.feed-head h1,.simple-head h1{font-size:26px}.feed-head p{font-size:14px}.publish-shortcut{padding:10px 14px}.masonry{columns:1}.topic-copy{padding:24px}.topic-copy h2{font-size:22px}.topic-copy p{-webkit-line-clamp:4}.topic-detail{padding:24px 20px}.topic-detail h1{font-size:26px}.detail-images{grid-template-columns:repeat(2,minmax(0,1fr))}.response{padding:22px 20px}.composer,.chat-composer{bottom:calc(84px + env(safe-area-inset-bottom))}.consent{grid-template-columns:1fr 1fr}.consent>div{grid-column:1/-1}.form-grid,.profile-actions{grid-template-columns:1fr}.toast{bottom:calc(90px + env(safe-area-inset-bottom));left:20px;right:20px}.dialog-backdrop{padding:16px}.phone-dialog,.auth-error-dialog{max-height:calc(100dvh - 32px);padding:28px 22px}.phone-dialog h2{font-size:24px}.site-footer{padding-bottom:24px}}@media (width<=380px){.app-shell{padding:0 16px}.feed-head{padding:22px 18px}.feed-head h1{font-size:24px}.feed-controls select{width:100%}.segments button{padding:8px 16px}.topic-copy{padding:22px 20px}}.reading-source{overflow-wrap:anywhere;background:#f0f4ed;border-radius:16px;flex-direction:column;gap:10px;margin:22px 0;padding:20px;line-height:1.8;display:flex}.topic-kind{color:#45624e;background:#e5efe5;border-radius:999px;margin-left:8px;padding:3px 7px;font-size:11px;font-weight:600}.product-card-mini{color:#45624e;background:#f0f4ed;border-radius:10px;justify-content:space-between;gap:12px;margin-top:12px;padding:10px 12px;font-size:13px;display:flex}.product-card-mini span{font-weight:600}.product-panel{background:#f0f4ed;border:1px solid #cbd9ca;border-radius:16px;margin:24px 0;padding:22px;line-height:1.8}.product-panel-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.product-panel-head span{color:#45624e;font-size:12px;font-weight:600}.product-panel-head strong{font-size:20px}.product-panel>p{color:var(--text);white-space:pre-wrap;margin:14px 0}.product-meta{color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;font-size:14px;display:flex}.product-meta a{color:#45624e;text-underline-offset:3px;align-items:center;min-height:44px;text-decoration:underline;display:inline-flex}.product-poll{border-top:1px solid #d5e0d4;margin-top:20px;padding-top:18px}.product-poll>strong{font-size:14px}.product-poll>div{flex-wrap:wrap;gap:10px;margin-top:10px;display:flex}.product-poll button{background:var(--surface);min-height:44px;color:var(--text);border:1px solid #c4d3c3;border-radius:10px;padding:9px 14px;font-size:14px}.product-poll button:hover,.product-poll button.active{color:#fff;background:#45624e;border-color:#45624e}.product-poll button small{opacity:.75;margin-left:6px}.product-poll-total{color:var(--muted);margin-top:10px;font-size:12px;display:block}.publish-mode{background:var(--surface-soft);border-radius:12px;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-bottom:22px;padding:5px;display:grid}.publish-mode button{min-height:44px;color:var(--muted);background:0 0;border:0;border-radius:9px;font-size:14px}.publish-mode button.active{background:var(--surface);color:var(--accent);font-weight:600;box-shadow:0 2px 8px #26352b14}.product-form-section{border:1px solid var(--border);background:var(--surface-soft);border-radius:16px;margin:24px 0;padding:20px}.form-section-title{justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:18px;display:flex}.form-section-title strong{font-size:17px}.form-section-title span{color:var(--muted);font-size:12px}.reading-source a{color:#45624e;text-underline-offset:4px;align-items:center;min-height:44px;text-decoration:underline;display:flex}.reading-source small{color:#657163;font-size:12px}.reading-source strong{font-size:14px}.reading-source a:focus-visible{outline-offset:3px;outline:3px solid #92aa86}.ad-slot,.ad-consent{border:1px solid var(--border);background:var(--surface-soft);border-radius:14px;min-height:112px;margin:24px 0;padding:18px;position:relative;overflow:hidden}.ad-slot .ad-label{color:var(--muted);letter-spacing:.08em;font-size:10px;position:absolute;top:8px;left:10px}.ad-slot ins{min-height:90px}.ad-consent{color:var(--muted);justify-content:space-between;align-items:center;gap:16px;font-size:12px;line-height:1.7;display:flex}.ad-consent div{flex-shrink:0;align-items:center;gap:8px;display:flex}.ad-consent button,.ad-consent a{border:1px solid var(--border);background:var(--surface);min-height:36px;color:var(--accent);border-radius:8px;padding:7px 12px;font-size:12px;text-decoration:none}.ad-consent button:first-child{border-color:var(--accent);background:var(--accent);color:#fff}.ad-consent a{border:0;text-decoration:underline}@media (width<=767px){.ad-consent{flex-direction:column;align-items:flex-start;gap:10px}.ad-consent div{flex-wrap:wrap;width:100%}.ad-consent button{flex:1}}