@font-face{font-family:DM Sans Variable;font-style:normal;font-display:swap;font-weight:100 1000;src:url(/assets/dm-sans-latin-ext-wght-normal-BOFOeGcA.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:DM Sans Variable;font-style:normal;font-display:swap;font-weight:100 1000;src:url(/assets/dm-sans-latin-wght-normal-Xz1IZZA0.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--bg-page: #F9F7F4;--bg-surface: #FFFFFF;--bg-panel: #F4F1EE;--bg-hover: #EEEAE6;--text-primary: #1C1917;--text-secondary: #44403C;--text-tertiary: #78716C;--text-quaternary: #A8A29E;--text-placeholder: #C4BDB8;--brand: #7C6047;--brand-bg: rgba(124, 96, 71, .08);--brand-bg-hover: rgba(124, 96, 71, .13);--accent: #7C6047;--accent-hover: #6A5040;--success: #27a644;--success-bg: rgba(39, 166, 68, .08);--emerald: #10b981;--emerald-bg: rgba(16, 185, 129, .08);--warning: #f59e0b;--warning-bg: rgba(245, 158, 11, .08);--danger: #e5484d;--danger-bg: rgba(229, 72, 77, .08);--border-subtle: #f0f1f2;--border-default: #e6e6e8;--border-strong: #d0d6e0;--border-focus: #7C6047;--shadow-ring: rgba(0,0,0,.08) 0px 0px 0px 1px;--shadow-subtle: rgba(0,0,0,.03) 0px 1.2px 0px 0px;--shadow-card: rgba(0,0,0,.08) 0px 0px 0px 1px, rgba(0,0,0,.04) 0px 2px 4px 0px;--shadow-elevated: rgba(0,0,0,.08) 0px 0px 0px 1px, rgba(0,0,0,.06) 0px 4px 12px 0px;--shadow-focus: 0 0 0 2px rgba(124, 96, 71, .35);--font-sans: "DM Sans", -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono: "Berkeley Mono", ui-monospace, "SF Mono", Menlo, monospace;--text-xs: 11px;--text-sm: 13px;--text-base: 14px;--text-md: 15px;--text-lg: 16px;--text-xl: 18px;--text-2xl: 20px;--text-3xl: 24px;--text-4xl: 32px;--text-display: 48px;--weight-normal: 400;--weight-medium: 500;--weight-semibold: 590;--weight-bold: 700;--leading-none: 1;--leading-tight: 1.25;--leading-snug: 1.375;--leading-normal: 1.5;--leading-relaxed: 1.625;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--space-16: 64px;--radius-xs: 2px;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-xl: 12px;--radius-2xl: 16px;--radius-full: 9999px;--sidebar-width: 220px;--navbar-height: 56px;--content-max-width: 1200px;--ease-default: cubic-bezier(.16, 1, .3, 1);--duration-fast: .12s;--duration-normal: .2s;--duration-slow: 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var(--ease-default),border-color var(--duration-normal) var(--ease-default)}.navbar.scrolled{box-shadow:0 1px 0 var(--border-default),0 4px 12px #0000000a}.navbar-inner{max-width:var(--content-max-width);margin:0 auto;padding:0 var(--space-6);height:100%;display:flex;align-items:center;gap:var(--space-4)}.nav-logo{display:flex;align-items:center;gap:var(--space-2);flex-shrink:0;text-decoration:none}.nav-logo-mark{width:28px;height:28px;background:var(--brand);color:#fff;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:var(--text-sm);font-weight:var(--weight-bold);letter-spacing:-.5px;flex-shrink:0}.nav-logo-text{font-size:var(--text-base);font-weight:var(--weight-semibold);color:var(--text-primary);letter-spacing:-.2px}.nav-search{flex:1;max-width:360px;position:relative;display:flex;align-items:center}.nav-search-icon{position:absolute;left:var(--space-3);color:var(--text-quaternary);pointer-events:none;flex-shrink:0}.nav-search-input{width:100%;height:32px;padding:0 var(--space-8) 0 var(--space-8);background:var(--bg-surface);border:1px solid 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auto;padding:var(--space-6);display:flex;gap:var(--space-6);align-items:flex-start}.sidebar{width:var(--sidebar-width);flex-shrink:0;position:sticky;top:calc(var(--navbar-height) + var(--space-6));max-height:calc(100vh - var(--navbar-height) - var(--space-12));overflow-y:auto;padding-right:var(--space-2)}.sidebar-section{margin-bottom:var(--space-6)}.sidebar-label{font-size:var(--text-xs);font-weight:var(--weight-semibold);color:var(--text-quaternary);letter-spacing:.06em;text-transform:uppercase;padding:0 var(--space-3);margin-bottom:var(--space-2)}.sidebar-nav{display:flex;flex-direction:column;gap:1px}.sidebar-item{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:var(--weight-medium);color:var(--text-tertiary);cursor:pointer;transition:color var(--duration-fast),background 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var(--duration-fast)}.mobile-menu-btn:hover{background:var(--bg-hover)}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0000004d;z-index:90;opacity:0;transition:opacity var(--duration-normal)}.sidebar-overlay.show{opacity:1}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--space-4)}.modal-content{background:#fff;border-radius:var(--radius-xl);box-shadow:var(--shadow-elevated);width:100%;max-width:440px;overflow:hidden}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border-default)}.modal-title{font-size:16px;font-weight:600;margin:0}.modal-close{width:28px;height:28px;border:none;background:none;font-size:20px;color:#888;cursor:pointer;border-radius:var(--radius-sm)}.modal-close:hover{background:#f0f0f0}.modal-body{padding:20px}.modal-field{margin-bottom:14px}.modal-label{display:block;font-size:13px;font-weight:500;color:#555;margin-bottom:6px}.modal-input,.modal-textarea{width:100%;padding:10px 12px;border:1px solid var(--border-default);border-radius:var(--radius-md);font-size:14px;box-sizing:border-box;transition:border-color var(--duration-fast)}.modal-input:focus,.modal-textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px #5e6ad21a}.modal-textarea{resize:vertical;min-height:70px}.modal-btn{width:100%;padding:10px;border:none;border-radius:var(--radius-md);background:var(--brand);color:#fff;font-size:14px;font-weight:500;cursor:pointer;transition:opacity var(--duration-fast)}.modal-btn:hover{opacity:.9}.modal-btn:disabled{opacity:.5;cursor:not-allowed}.feedback-fab{position:fixed;bottom:24px;right:24px;width:48px;height:48px;border-radius:50%;border:none;background:var(--brand);color:#fff;box-shadow:0 4px 14px #5e6ad266;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform var(--duration-fast),box-shadow var(--duration-fast);z-index:50}.feedback-fab:hover{transform:scale(1.08);box-shadow:0 6px 20px #5e6ad280}@media (max-width: 768px){.page-body{padding:var(--space-4);gap:0}.sidebar{position:fixed;top:0;left:0;bottom:0;width:260px;z-index:95;background:var(--bg-surface);box-shadow:var(--shadow-elevated);padding:var(--space-6) var(--space-4);border-right:1px solid var(--border-default);transform:translate(-100%);transition:transform var(--duration-normal) var(--ease-default);max-height:none;overflow-y:auto}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:block}.mobile-menu-btn{display:flex}.nav-search{max-width:200px}.nav-kbd,.nav-links{display:none}.tool-grid{grid-template-columns:1fr 1fr;gap:var(--space-2)}}@media (max-width: 480px){.tool-grid{grid-template-columns:1fr}.navbar-inner{padding:0 var(--space-4)}}.nav-filter-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:var(--color-surface, #fff);border:1px solid var(--color-border, #e5e5e5);border-radius:8px;font-size:13px;color:var(--color-text, #111);cursor:pointer;position:relative;transition:background .15s,border-color .15s;margin-right:4px}.nav-filter-btn:hover{background:var(--color-surface-hover, #f5f5f5);border-color:var(--color-border-strong, #d0d0d0)}.nav-filter-label{font-weight:500}.nav-filter-badge{display:inline-flex;align-items:center;justify-content:center;min-width:16px;height:16px;padding:0 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