:root{--color-primary: #32b0ad;--color-primary-dark: #289a98;--color-primary-hover: #4ac5c0;--color-primary-bg: #e6f9fa;--color-primary-bg-alt: #d4f0f2;--color-danger: #e53e3e;--color-danger-bg: #fff5f5;--color-success: #52c41a;--color-text: #333;--color-text-secondary: #666;--color-text-tertiary: #999;--color-text-disabled: #bbb;--color-icon: currentColor;--color-border: #d9d9d9;--color-border-dark: #ccc;--color-border-light: #eee;--color-bg: #fff;--color-bg-hover: #f5f5f5;--color-bg-alt: #f0f0f0;--color-bg-app: #F3F5F7;--shadow-dropdown: 0 4px 16px rgba(0, 0, 0, .14);--shadow-modal: 0 8px 32px rgba(0, 0, 0, .15);--shadow-card: 0 1px 2px rgba(16, 24, 40, .05), 0 4px 16px rgba(16, 24, 40, .07);--radius-sm: 4px;--radius-md: 6px;--radius-lg: 14px;--radius-float: 12px;--scroll-hint-left: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 12'%3E%3Cpath d='M6 1.5 2 6l4 4.5' fill='none' stroke='%23555' stroke-width='1.8' stroke-linecap='round' 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var(--color-border-dark);border-radius:var(--radius-sm);background:var(--color-bg);cursor:pointer;font-size:var(--font-size-base);color:var(--color-text);display:inline-flex;align-items:center;justify-content:center}.ui-btn:hover:not(:disabled){background:var(--color-bg-hover);border-color:#999}.ui-btn:disabled{color:var(--color-text-disabled);cursor:default}.ui-btn--toggle.active{background:var(--color-primary-bg);border-color:var(--color-primary);color:var(--color-primary)}.ui-btn--icon{width:32px;height:32px;padding:0}@keyframes ui-btn-attention-pulse{0%,to{background:var(--color-bg);box-shadow:0 0 #32b0ad99}50%{background:var(--color-primary-bg);box-shadow:0 0 0 5px #32b0ad00}}.ui-btn--attention{animation:ui-btn-attention-pulse .55s ease-in-out 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var(--color-danger)}.ui-btn--danger:hover:not(:disabled){background:var(--color-danger-bg)}.ui-btn--danger:disabled{color:var(--color-border-dark);border-color:#ddd}.ui-btn--ghost{border:none;background:transparent;padding:4px 8px}.ui-btn--ghost:hover:not(:disabled){background:var(--color-bg-alt);border:none}.ui-btn--sm{padding:4px 8px;font-size:var(--font-size-sm)}.ui-popover-layer{position:fixed;top:0;left:0;z-index:var(--z-popover)}.ui-popover-overlay{position:fixed;inset:0}.ui-popover-probe{display:none}.ui-popover{background:var(--color-bg);border-radius:var(--radius-float);box-shadow:var(--shadow-dropdown);min-width:64px;padding:4px 0;overflow:hidden}.ui-popover--absolute{position:absolute}.ui-popover--fixed{position:fixed}.ui-popover-title{padding:6px 12px;font-size:12px;color:var(--color-text-secondary);border-bottom:1px solid var(--color-border-light)}.ui-popover-item{display:flex;align-items:center;gap:6px;padding:6px 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input:focus{border-color:var(--color-primary)}.ui-popover-reading-input input::placeholder{color:var(--color-text-disabled);font-size:12px}.ui-modal-overlay{position:fixed;top:var(--visible-top, 0px);left:var(--visible-left, 0px);width:var(--visible-width, 100vw);height:var(--visible-height, 100dvh);background:#0000004d;display:flex;align-items:center;justify-content:center;z-index:var(--z-modal);animation:ui-modal-overlay-in .2s ease-out;padding-right:calc(var(--visible-width, 100vw) - round(down,var(--visible-width, 100vw),2px));padding-bottom:calc(var(--visible-height, 100dvh) - round(down,var(--visible-height, 100dvh),2px))}@keyframes ui-modal-overlay-in{0%{background:transparent}}.ui-modal{background:var(--color-bg);border-radius:var(--radius-lg);box-shadow:var(--shadow-modal);width:round(down,calc(var(--visible-width, 100vw) - 32px),2px);max-width:480px;max-height:round(down,calc(var(--visible-height, 100dvh) - 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#0000001f;cursor:pointer;user-select:none;-webkit-user-select:none}.fullscreen-control:hover{background:var(--color-bg-hover);color:var(--color-text)}.app--ink-mode .bottom-left-pills,.app--ink-mode .feedback-wrap{pointer-events:none}.app--ink-mode,.app--ink-mode *{user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}.advanced-reading-pill:hover{background:var(--color-bg-hover)}.advanced-reading-pill--on:hover{background:#d4e4ff}.reading-pill-wrap--hint .advanced-reading-pill{border-color:#1890ff;color:#1890ff;animation:reading-pill-pulse 1.2s ease-out 4}@keyframes reading-pill-pulse{0%{box-shadow:0 0 #1890ff8c;transform:scale(1)}20%{transform:scale(1.08)}40%{transform:scale(1)}to{box-shadow:0 0 0 12px #1890ff00}}.reading-pill-hint{position:absolute;bottom:calc(100% + 10px);left:0;padding:6px 12px;border-radius:8px;background:#1890ff;color:#fff;font-size:13px;white-space:nowrap;box-shadow:0 2px 8px #0000002e;cursor:pointer;animation:reading-pill-hint-in .3s ease-out}.reading-pill-hint:after{content:"";position:absolute;top:100%;left:16px;border:6px solid transparent;border-top-color:#1890ff}@keyframes reading-pill-hint-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media(prefers-reduced-motion:reduce){.reading-pill-wrap--hint .advanced-reading-pill,.reading-pill-hint{animation:none}}@media(max-width:520px){.font-detail-settings-control,.font-detail-settings-color-control{width:auto}.font-detail-settings-control .ui-select-trigger{width:140px!important}}@media(max-width:520px){:root{--font-size-xs: 12px;--font-size-sm: 14px;--font-size-base: 18px;--font-size-lg: 20px}.feedback-trigger-label{display:none}}