:root {
    --tool-font-family: "Segoe UI", "HarmonyOS Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
    --tool-background: linear-gradient(160deg, #eef2ff 0%, #f8fafc 100%);
    --tool-surface: rgba(255, 255, 255, 0.95);
    --tool-surface-elevated: rgba(255, 255, 255, 0.85);
    --tool-border: rgba(148, 163, 184, 0.25);
    --tool-shadow-soft: 0 24px 50px rgba(15, 23, 42, 0.12);
    --tool-shadow-hover: 0 28px 60px rgba(79, 70, 229, 0.16);
    --tool-text-primary: #1f2937;
    --tool-text-secondary: #4b5563;
    --tool-text-tertiary: #6b7280;
    --tool-radius-lg: 26px;
    --tool-radius-md: 18px;
    --tool-radius-sm: 12px;
    --tool-gap-lg: 32px;
    --tool-gap-md: 20px;
    --tool-gap-sm: 12px;
    --tool-accent: #4f46e5;
    --tool-accent-strong: #4338ca;
    --tool-accent-gradient: linear-gradient(135deg, #4f46e5 0%, #22d3ee 100%);
    --tool-accent-surface: rgba(79, 70, 229, 0.08);
    --tool-accent-border: rgba(79, 70, 229, 0.25);
}

body.tool-page {
    margin: 0;
    font-family: var(--tool-font-family);
    background: var(--tool-background);
    color: var(--tool-text-primary);
    min-height: 100vh;
    padding: 32px 18px 48px;
    position: relative;
}

body.tool-page::before,
body.tool-page::after {
    content: "";
    position: fixed;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.14) 0%, transparent 65%);
    z-index: -2;
}

body.tool-page::before {
    top: -220px;
    right: -160px;
}

body.tool-page::after {
    bottom: -240px;
    left: -160px;
}

body.tool-page[data-tool="video-compressor"] {
    --tool-accent: #2563eb;
    --tool-accent-strong: #1d4ed8;
    --tool-accent-gradient: linear-gradient(135deg, #2563eb 0%, #38bdf8 100%);
    --tool-accent-surface: rgba(37, 99, 235, 0.08);
    --tool-accent-border: rgba(37, 99, 235, 0.28);
}

body.tool-page[data-tool="m3u8-player"] {
    --tool-accent: #8b5cf6;
    --tool-accent-strong: #7c3aed;
    --tool-accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    --tool-accent-surface: rgba(139, 92, 246, 0.12);
    --tool-accent-border: rgba(139, 92, 246, 0.32);
}

body.tool-page[data-tool="image-cropper"] {
    --tool-accent: #0ea5e9;
    --tool-accent-strong: #0284c7;
    --tool-accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #38bdf8 100%);
    --tool-accent-surface: rgba(14, 165, 233, 0.1);
    --tool-accent-border: rgba(14, 165, 233, 0.3);
}

body.tool-page[data-tool="wechat-slicer"] {
    --tool-accent: #ec4899;
    --tool-accent-strong: #db2777;
    --tool-accent-gradient: linear-gradient(135deg, #ec4899 0%, #f97316 100%);
    --tool-accent-surface: rgba(236, 72, 153, 0.1);
    --tool-accent-border: rgba(236, 72, 153, 0.3);
}

body.tool-page[data-tool="image-base64"] {
    --tool-accent: #f97316;
    --tool-accent-strong: #ea580c;
    --tool-accent-gradient: linear-gradient(135deg, #f97316 0%, #facc15 100%);
    --tool-accent-surface: rgba(249, 115, 22, 0.12);
    --tool-accent-border: rgba(249, 115, 22, 0.32);
}

body.tool-page[data-tool="image-compressor"] {
    --tool-accent: #ef4444;
    --tool-accent-strong: #dc2626;
    --tool-accent-gradient: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
    --tool-accent-surface: rgba(239, 68, 68, 0.1);
    --tool-accent-border: rgba(239, 68, 68, 0.3);
}

body.tool-page[data-tool="pdf-to-image"] {
    --tool-accent: #10b981;
    --tool-accent-strong: #059669;
    --tool-accent-gradient: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    --tool-accent-surface: rgba(16, 185, 129, 0.08);
    --tool-accent-border: rgba(16, 185, 129, 0.24);
}

body.tool-page[data-tool="markdown-to-image"] {
    --tool-accent: #3b82f6;
    --tool-accent-strong: #1d4ed8;
    --tool-accent-gradient: linear-gradient(135deg, #2563eb 0%, #6366f1 100%);
    --tool-accent-surface: rgba(59, 130, 246, 0.08);
    --tool-accent-border: rgba(59, 130, 246, 0.26);
}

body.tool-page[data-tool="word-image-extractor"] {
    --tool-accent: #7c3aed;
    --tool-accent-strong: #5b21b6;
    --tool-accent-gradient: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%);
    --tool-accent-surface: rgba(124, 58, 237, 0.1);
    --tool-accent-border: rgba(124, 58, 237, 0.28);
}

body.tool-page[data-tool="text-diff"] {
    --tool-accent: #f97316;
    --tool-accent-strong: #c2410c;
    --tool-accent-gradient: linear-gradient(135deg, #f97316 0%, #fb923c 100%);
    --tool-accent-surface: rgba(249, 115, 22, 0.12);
    --tool-accent-border: rgba(249, 115, 22, 0.3);
}

body.tool-page[data-tool="currency-converter"] {
    --tool-accent: #f97316;
    --tool-accent-strong: #f97316;
    --tool-accent-gradient: linear-gradient(135deg, #f97316 0%, #f43f5e 100%);
    --tool-accent-surface: rgba(250, 140, 115, 0.1);
    --tool-accent-border: rgba(250, 140, 115, 0.28);
}

body.tool-page[data-tool="tax-calculator"] {
    --tool-accent: #22d3ee;
    --tool-accent-strong: #0ea5e9;
    --tool-accent-gradient: linear-gradient(135deg, #22d3ee 0%, #818cf8 100%);
    --tool-accent-surface: rgba(129, 140, 248, 0.1);
    --tool-accent-border: rgba(129, 140, 248, 0.26);
}

body.tool-page[data-tool="bmi-calculator"] {
    --tool-accent: #10b981;
    --tool-accent-strong: #059669;
    --tool-accent-gradient: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    --tool-accent-surface: rgba(16, 185, 129, 0.12);
    --tool-accent-border: rgba(16, 185, 129, 0.3);
}

body.tool-page[data-tool="html-entities"] {
    --tool-accent: #6366f1;
    --tool-accent-strong: #4f46e5;
    --tool-accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --tool-accent-surface: rgba(99, 102, 241, 0.12);
    --tool-accent-border: rgba(99, 102, 241, 0.28);
}

body.tool-page[data-tool="age-calculator"] {
    --tool-accent: #8b5cf6;
    --tool-accent-strong: #7c3aed;
    --tool-accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    --tool-accent-surface: rgba(139, 92, 246, 0.12);
    --tool-accent-border: rgba(139, 92, 246, 0.32);
}

body.tool-page[data-tool="cidr-calculator"] {
    --tool-accent: #0ea5e9;
    --tool-accent-strong: #1d4ed8;
    --tool-accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
    --tool-accent-surface: rgba(14, 165, 233, 0.12);
    --tool-accent-border: rgba(14, 165, 233, 0.28);
}

body.tool-page[data-tool="pomodoro"] {
    --tool-accent: #ef4444;
    --tool-accent-strong: #dc2626;
    --tool-accent-gradient: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
    --tool-accent-surface: rgba(239, 68, 68, 0.12);
    --tool-accent-border: rgba(239, 68, 68, 0.28);
}

body.tool-page[data-tool="time-calculator"] {
    --tool-accent: #0ea5e9;
    --tool-accent-strong: #0284c7;
    --tool-accent-gradient: linear-gradient(135deg, #38bdf8 0%, #6366f1 100%);
    --tool-accent-surface: rgba(14, 165, 233, 0.12);
    --tool-accent-border: rgba(14, 165, 233, 0.28);
}

body.tool-page[data-tool="unit-converter"] {
    --tool-accent: #6366f1;
    --tool-accent-strong: #4f46e5;
    --tool-accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --tool-accent-surface: rgba(99, 102, 241, 0.12);
    --tool-accent-border: rgba(99, 102, 241, 0.3);
}

body.tool-page[data-tool="todo-list"] {
    --tool-accent: #8b5cf6;
    --tool-accent-strong: #7c3aed;
    --tool-accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
    --tool-accent-surface: rgba(139, 92, 246, 0.12);
    --tool-accent-border: rgba(139, 92, 246, 0.3);
}

body.tool-page[data-tool="typing-speed"] {
    --tool-accent: #6366f1;
    --tool-accent-strong: #4338ca;
    --tool-accent-gradient: linear-gradient(135deg, #6366f1 0%, #9333ea 100%);
    --tool-accent-surface: rgba(99, 102, 241, 0.12);
    --tool-accent-border: rgba(99, 102, 241, 0.28);
}

body.tool-page[data-tool="speech-to-text"] {
    --tool-accent: #7c3aed;
    --tool-accent-strong: #5b21b6;
    --tool-accent-gradient: linear-gradient(135deg, #7c3aed 0%, #6366f1 100%);
    --tool-accent-surface: rgba(124, 58, 237, 0.12);
    --tool-accent-border: rgba(124, 58, 237, 0.28);
}

body.tool-page[data-tool="text-to-speech"] {
    --tool-accent: #3b82f6;
    --tool-accent-strong: #1d4ed8;
    --tool-accent-gradient: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    --tool-accent-surface: rgba(59, 130, 246, 0.12);
    --tool-accent-border: rgba(59, 130, 246, 0.28);
}

body.tool-page[data-tool="drawing-board"] {
    --tool-accent: #6366f1;
    --tool-accent-strong: #4c51bf;
    --tool-accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --tool-accent-surface: rgba(24, 31, 56, 0.9);
    --tool-accent-border: rgba(99, 102, 241, 0.3);
    background: radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.12), transparent 50%), #0f0f1e;
    color: #f1f5f9;
}

body.tool-page[data-tool="web-archiver"] {
    --tool-accent: #6366f1;
    --tool-accent-strong: #4338ca;
    --tool-accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 45%, #f472b6 100%);
    --tool-accent-surface: rgba(236, 233, 255, 0.85);
    --tool-accent-border: rgba(99, 102, 241, 0.3);
    background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.12), transparent 55%),
        radial-gradient(circle at 80% 30%, rgba(139, 92, 246, 0.12), transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(244, 114, 182, 0.1), transparent 60%),
        #f6f7fb;
}

body.tool-page[data-tool="life-countdown"] {
    --tool-accent: #8b5cf6;
    --tool-accent-strong: #7c3aed;
    --tool-accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #f472b6 100%);
    --tool-accent-surface: rgba(236, 233, 255, 0.9);
    --tool-accent-border: rgba(139, 92, 246, 0.35);
    background: radial-gradient(circle at 15% 20%, rgba(99, 102, 241, 0.15), transparent 55%),
        radial-gradient(circle at 70% 10%, rgba(244, 114, 182, 0.15), transparent 45%),
        radial-gradient(circle at 50% 80%, rgba(124, 58, 237, 0.12), transparent 50%),
        #f7f7fb;
}

body.tool-page[data-tool="click-speed"] {
    --tool-accent: #f59e0b;
    --tool-accent-strong: #d97706;
    --tool-accent-gradient: linear-gradient(135deg, #facc15 0%, #f59e0b 45%, #d97706 100%);
    --tool-accent-surface: rgba(248, 250, 252, 0.92);
    --tool-accent-border: rgba(245, 158, 11, 0.3);
    background: radial-gradient(circle at 10% 20%, rgba(250, 204, 21, 0.12), transparent 50%),
        radial-gradient(circle at 80% 10%, rgba(245, 158, 11, 0.12), transparent 45%),
        rgba(255, 249, 231, 0.8);
}

body.tool-page[data-tool="fake-work"] {
    --tool-accent: #16a34a;
    --tool-accent-strong: #0f9f43;
    --tool-accent-gradient: linear-gradient(135deg, #22c55e 0%, #16a34a 45%, #0f9f43 100%);
    --tool-accent-surface: rgba(15, 23, 42, 0.9);
    --tool-accent-border: rgba(34, 197, 94, 0.3);
    background: radial-gradient(circle at 15% 15%, rgba(34, 197, 94, 0.22), transparent 55%),
        radial-gradient(circle at 70% 5%, rgba(15, 118, 110, 0.18), transparent 50%),
        #020617;
    color: rgba(226, 232, 240, 0.88);
}
img {
    max-width: 100%;
}
.tool-shell {
    max-width: 1180px;
    margin: 0 auto;
    background: var(--tool-surface);
    border-radius: var(--tool-radius-lg);
    box-shadow: var(--tool-shadow-soft);
    border: 1px solid var(--tool-border);
    padding: 40px 48px 56px;
    box-sizing: border-box;
    backdrop-filter: blur(18px);
}

.tool-header {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
    margin-bottom: 36px;
}

.tool-header__meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--tool-gap-sm);
}

.tool-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.05);
    color: var(--tool-text-secondary);
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.tool-back:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 22px rgba(15, 23, 42, 0.12);
}

.tool-chip-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}

.tool-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 999px;
    background: var(--tool-accent-surface);
    color: var(--tool-accent-strong);
    font-size: 0.88rem;
    font-weight: 600;
}

.tool-title {
    margin: 0;
    font-size: 2.6rem;
    font-weight: 700;
    background: var(--tool-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tool-subtitle {
    margin: 0;
    color: var(--tool-text-secondary);
    line-height: 1.75;
    font-size: 1.05rem;
}

.tool-main {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-lg);
}

.uploadSection,
.upload-area,
.upload-section {
    border-radius: var(--tool-radius-md);
    border: 2px dashed var(--tool-accent-border);
    padding: 42px 24px;
    text-align: center;
    background: var(--tool-accent-surface);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease,
        background 0.25s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.uploadSection:hover,
.upload-area:hover,
.upload-section:hover,
.upload-area.highlight,
.uploadSection.dragover,
.upload-area.dragover,
.upload-section.dragover {
    transform: translateY(-2px);
    border-color: var(--tool-accent);
    box-shadow: var(--tool-shadow-hover);
    background: rgba(79, 70, 229, 0.12);
}

body[data-tool="image-cropper"] .uploadSection:hover,
body[data-tool="image-cropper"] .upload-area:hover,
body[data-tool="image-cropper"] .upload-section:hover,
body[data-tool="image-cropper"] .upload-area.highlight,
body[data-tool="image-cropper"] .uploadSection.dragover,
body[data-tool="image-cropper"] .upload-area.dragover,
body[data-tool="image-cropper"] .upload-section.dragover {
    background: rgba(14, 165, 233, 0.12);
}

body[data-tool="wechat-slicer"] .uploadSection:hover,
body[data-tool="wechat-slicer"] .upload-area:hover,
body[data-tool="wechat-slicer"] .upload-section:hover,
body[data-tool="wechat-slicer"] .upload-area.highlight,
body[data-tool="wechat-slicer"] .uploadSection.dragover,
body[data-tool="wechat-slicer"] .upload-area.dragover,
body[data-tool="wechat-slicer"] .upload-section.dragover {
    background: rgba(236, 72, 153, 0.12);
}

body[data-tool="image-base64"] .uploadSection:hover,
body[data-tool="image-base64"] .upload-area:hover,
body[data-tool="image-base64"] .upload-section:hover,
body[data-tool="image-base64"] .upload-area.highlight,
body[data-tool="image-base64"] .uploadSection.dragover,
body[data-tool="image-base64"] .upload-area.dragover,
body[data-tool="image-base64"] .upload-section.dragover {
    background: rgba(249, 115, 22, 0.12);
}

body[data-tool="image-compressor"] .uploadSection:hover,
body[data-tool="image-compressor"] .upload-area:hover,
body[data-tool="image-compressor"] .upload-section:hover,
body[data-tool="image-compressor"] .upload-area.highlight,
body[data-tool="image-compressor"] .uploadSection.dragover,
body[data-tool="image-compressor"] .upload-area.dragover,
body[data-tool="image-compressor"] .upload-section.dragover {
    background: rgba(239, 68, 68, 0.12);
}

body[data-tool="word-image-extractor"] .upload-area:hover,
body[data-tool="word-image-extractor"] .upload-area.highlight,
body[data-tool="word-image-extractor"] .upload-area.dragover {
    background: rgba(124, 58, 237, 0.12);
}

.uploadSectionIcon,
.upload-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 14px;
    color: var(--tool-accent);
}

.uploadSectionTitle,
.upload-text,
.upload-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--tool-accent-strong);
    margin-bottom: 6px;
}

.uploadSectionHint,
.upload-hint,
.upload-desc {
    color: var(--tool-text-tertiary);
    font-size: 0.95rem;
    margin-top: 4px;
}

.upload-desc {
    margin-top: 8px;
}

.file-input,
.uploadInput,
.upload-input {
    display: none;
}

.panel,
.tool-section,
.controls-section,
.preview-section,
.guideSection,
.result-section,
.download-section,
.controls,
.options-section,
.input-group {
    background: var(--tool-surface);
    border-radius: var(--tool-radius-md);
    border: 1px solid var(--tool-border);
    box-shadow: 0 14px 32px rgba(15, 23, 42, 0.08);
    padding: 26px 28px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.panel:hover,
.tool-section:hover,
.controls-section:hover,
.preview-section:hover,
.guideSection:hover,
.result-section:hover,
.download-section:hover,
.controls:hover,
.options-section:hover,
.input-group:hover {
    transform: translateY(-2px);
    box-shadow: var(--tool-shadow-hover);
}

.panelTitle,
.controls-title,
.section-title,
.preview-title,
.guideSection h2,
.result-section h3,
.download-section h3 {
    margin: 0 0 18px;
    font-size: 1.32rem;
    font-weight: 600;
    color: var(--tool-text-primary);
    position: relative;
    padding-left: 16px;
}

.panelTitle::before,
.controls-title::before,
.section-title::before,
.preview-title::before,
.guideSection h2::before,
.result-section h3::before,
.download-section h3::before {
    content: "";
    width: 6px;
    height: 22px;
    border-radius: 999px;
    background: var(--tool-accent-gradient);
    position: absolute;
    left: 0;
    top: 2px;
}

.tool-grid,
.controls-grid,
.options-section,
.button-group {
    display: grid;
    gap: var(--tool-gap-md);
}

.tool-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.controls-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.split-grid {
    display: grid;
    gap: var(--tool-gap-md);
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.stack {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.result-grid,
.results-grid {
    display: grid;
    gap: var(--tool-gap-md);
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.result-item,
.result-card {
    border-radius: var(--tool-radius-sm);
    border: 1px solid var(--tool-border);
    background: var(--tool-surface);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.result-item img,
.result-card img {
    width: 100%;
    display: block;
}

.result-actions {
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: stretch;
}

.tabs {
    display: inline-flex;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
    padding: 6px;
    gap: 6px;
}

.tab {
    padding: 8px 16px;
    border-radius: 999px;
    color: var(--tool-text-secondary);
    cursor: pointer;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background 0.2s ease, color 0.2s ease;
}

.tab.active {
    background: var(--tool-accent-gradient);
    color: #ffffff;
    box-shadow: 0 10px 20px rgba(79, 70, 229, 0.18);
}

.tab-content {
    display: none;
    margin-top: var(--tool-gap-md);
}

.tab-content.active {
    display: block;
}

.controlGroup,
.control-group,
.option-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.controlGroup label,
.control-group label,
.option-group label,
.input-group label {
    font-weight: 600;
    color: var(--tool-text-secondary);
    font-size: 0.95rem;
}

.control-label {
    font-weight: 600;
    color: var(--tool-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 6px;
}

.control-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--tool-gap-md);
    margin-top: var(--tool-gap-md);
}

.control-select {
    font-family: inherit;
    font-size: 0.95rem;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1.5px solid rgba(148, 163, 184, 0.5);
    background: rgba(248, 250, 252, 0.9);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    width: 100%;
    box-sizing: border-box;
    cursor: pointer;
}

.control-select:focus {
    outline: none;
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.16);
    background: #ffffff;
}

.control-input {
    font-family: inherit;
    font-size: 0.95rem;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1.5px solid rgba(148, 163, 184, 0.5);
    background: rgba(248, 250, 252, 0.9);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    width: 100%;
    box-sizing: border-box;
}

.control-input:focus {
    outline: none;
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.16);
    background: #ffffff;
}

select,
input[type="number"],
input[type="text"],
textarea {
    font-family: inherit;
    font-size: 0.95rem;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1.5px solid rgba(148, 163, 184, 0.5);
    background: rgba(248, 250, 252, 0.9);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    resize: vertical;
    width: 100%;
    box-sizing: border-box;
}

textarea,
.control-textarea {
    width: 100%;
    box-sizing: border-box;
}

select:focus,
input:focus,
textarea:focus {
    outline: none;
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.16);
    background: #ffffff;
}

.checkboxRow {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--tool-text-secondary);
}

.actions,
.button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 6px;
}

button,
.upload-label,
.crop-btn,
.reset-btn,
.download-btn,
.copy-btn,
.convert-btn,
.paste-btn,
.clear-btn {
    border: none;
    border-radius: 999px;
    padding: 12px 28px;
    font-size: 0.98rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

button.primary,
.upload-label,
.crop-btn,
.download-btn,
.copy-btn,
.convert-btn {
    background: var(--tool-accent-gradient);
    color: #ffffff;
    box-shadow: 0 16px 32px rgba(79, 70, 229, 0.2);
}

button.secondary,
.reset-btn,
.paste-btn,
.clear-btn {
    background: rgba(15, 23, 42, 0.08);
    color: var(--tool-text-secondary);
}

button:hover,
.upload-label:hover,
.crop-btn:hover,
.reset-btn:hover,
.download-btn:hover,
.copy-btn:hover,
.convert-btn:hover,
.paste-btn:hover,
.clear-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--tool-shadow-hover);
}

button:disabled,
.downloadLink[disabled] {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.progressWrapper,
.progress-bar {
    margin-top: 16px;
}

progress {
    width: 100%;
    height: 14px;
    border-radius: 999px;
    overflow: hidden;
    appearance: none;
}

progress::-webkit-progress-bar {
    background-color: rgba(148, 163, 184, 0.25);
    border-radius: 999px;
}

progress::-webkit-progress-value {
    background: var(--tool-accent-gradient);
    border-radius: 999px;
}

progress::-moz-progress-bar {
    background: var(--tool-accent-gradient);
    border-radius: 999px;
}

.progressText {
    margin-top: 10px;
    text-align: center;
    font-weight: 600;
    color: var(--tool-text-secondary);
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: rgba(148, 163, 184, 0.25);
    border-radius: 999px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    border-radius: 999px;
    background: var(--tool-accent-gradient);
    transition: width 0.3s ease;
}

.status,
.status-text,
.diff-summary {
    margin-top: 12px;
    color: var(--tool-text-secondary);
    font-size: 0.95rem;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 36px 16px;
    color: var(--tool-text-tertiary);
    text-align: center;
    border-radius: var(--tool-radius-md);
    background: rgba(15, 23, 42, 0.04);
    border: 1px dashed var(--tool-border);
}

.empty-state-icon {
    font-size: 2rem;
}

.video-grid,
.videoGrid,
.controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--tool-gap-lg);
    margin-top: var(--tool-gap-md);
}

.video-card,
.videoCard {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.video-card h3,
.videoCard h3,
.preview-title,
.section-title,
.controls-title {
    color: var(--tool-text-primary);
    margin: 0;
}

.video-card video,
.videoCard video,
.preview-canvas,
.preview-image,
.canvas-container {
    width: 100%;
    border-radius: var(--tool-radius-sm);
    background: var(--tool-bg-dark);
    aspect-ratio: 16/9;
    object-fit: contain;
}
#preview-container {
    text-align: center;
}
#preview-image {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}

.video-compressor-main {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-lg);
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px;
    background: var(--tool-surface);
    border-radius: var(--tool-radius-md);
    border: 1px solid var(--tool-border);
    margin: var(--tool-gap-md) 0;
}

.checkbox-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-row label {
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--tool-text-secondary);
    user-select: none;
}

.progress-wrapper {
    margin-top: var(--tool-gap-md);
    padding: 16px;
    background: var(--tool-surface);
    border-radius: var(--tool-radius-md);
    border: 1px solid var(--tool-border);
}

.progress-text {
    margin-top: 12px;
    text-align: center;
    color: var(--tool-text-secondary);
    font-size: 0.9rem;
}

.downloadLink,
.download-section a,
.result-section a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 22px;
    border-radius: 999px;
    margin-top: 14px;
    background: var(--tool-accent-gradient);
    color: #ffffff;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 16px 32px rgba(79, 70, 229, 0.22);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.downloadLink:hover,
.download-section a:hover,
.result-section a:hover {
    transform: translateY(-2px);
    box-shadow: var(--tool-shadow-hover);
}

.download-section .primary,
.button-group .primary {
    min-width: 180px;
}

.diff-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.diff-summary .diff-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    background: var(--tool-accent-surface);
    color: var(--tool-accent-strong);
}

.diff-section {
    margin-top: var(--tool-gap-md);
}

.diff-added {
    background: rgba(34, 197, 94, 0.12);
    border-radius: var(--tool-radius-sm);
    padding: 12px 16px;
}

.diff-removed {
    background: rgba(239, 68, 68, 0.12);
    border-radius: var(--tool-radius-sm);
    padding: 12px 16px;
}

.diff-unchanged {
    background: rgba(148, 163, 184, 0.12);
    border-radius: var(--tool-radius-sm);
    padding: 12px 16px;
}

.diff-added mark,
.diff-removed mark {
    background: rgba(15, 23, 42, 0.12);
    color: inherit;
}

.textarea-pair {
    display: grid;
    gap: var(--tool-gap-md);
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.textarea-pair textarea {
    height: 240px;
}

.base64-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.9rem;
}

.shortcut-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    color: var(--tool-text-secondary);
}

.shortcut-list span {
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.08);
    font-size: 0.9rem;
}

.diff-panel .panelTitle {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.diff-output,
.xml-diff,
.json-diff {
    margin-top: 18px;
    border-radius: var(--tool-radius-md);
    border: 1px solid var(--tool-border);
    background: var(--tool-surface);
    padding: 18px;
    font-family: 'Fira Code', 'JetBrains Mono', 'Consolas', monospace;
    font-size: 0.92rem;
    line-height: 1.6;
    color: var(--tool-text-primary);
    max-height: 520px;
    overflow-y: auto;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

.json-diff {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.json-key {
    color: var(--tool-accent-strong);
    font-weight: 600;
}

.json-string {
    color: #059669;
}

.json-number {
    color: #2563eb;
}

.json-boolean {
    color: #d97706;
}

.json-null,
.json-unknown {
    color: #64748b;
    font-style: italic;
}

.json-array,
.json-object {
    color: var(--tool-accent);
    font-weight: 600;
}

.json-collapse-btn {
    cursor: pointer;
    font-weight: 700;
    margin-right: 8px;
    color: var(--tool-accent-strong);
    user-select: none;
}

.json-children {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.json-diff .diff-added,
.json-diff .diff-removed,
.json-diff .diff-unchanged,
.xml-diff .diff-added,
.xml-diff .diff-removed,
.xml-diff .diff-unchanged {
    border-radius: var(--tool-radius-sm);
    padding: 10px 14px;
}

.preview-container {
    display: grid;
    gap: var(--tool-gap-md);
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.preview-container img {
    width: 100%;
    max-width: 100%;
    display: block;
    border-radius: var(--tool-radius-sm);
    border: 1px solid rgba(15, 23, 42, 0.12);
    background: #ffffff;
}

.document-preview {
    border-radius: var(--tool-radius-md);
    border: 1px solid var(--tool-border);
    background: #ffffff;
    padding: 18px;
    max-height: 520px;
    overflow-y: auto;
    box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.02);
}

.currency-input-group,
.info-card,
.popular-currencies,
.history-section,
.entity-list,
.bmi-chart,
.detail-table,
.tax-rate-table {
    background: rgba(248, 250, 252, 0.9);
    border-radius: var(--tool-radius-lg);
    border: 1px solid rgba(148, 163, 184, 0.25);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.converter-grid,
.stats-cards,
.result-summary {
    display: grid;
    gap: var(--tool-gap-md);
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.input-wrapper {
    display: flex;
    gap: 12px;
    align-items: center;
}

.amount-input,
.currency-select,
.result-input {
    flex: 1;
    padding: 14px 16px;
    border-radius: 14px;
    border: 1.5px solid rgba(148, 163, 184, 0.5);
    background: #ffffff;
    font-size: 1.05rem;
    font-weight: 600;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.amount-input:focus,
.currency-select:focus,
.result-input:focus {
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
    outline: none;
}

.result-input[readonly] {
    background: rgba(15, 23, 42, 0.04);
    color: var(--tool-text-secondary);
}

.swap-button {
    display: flex;
    justify-content: center;
    margin: -16px 0;
}

.swap-btn {
    width: 56px;
    height: 56px;
    border-radius: 999px;
    border: none;
    background: var(--tool-accent-gradient);
    color: #ffffff;
    font-size: 1.4rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 16px 32px rgba(79, 70, 229, 0.24);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.swap-btn:hover {
    transform: rotate(180deg) scale(1.05);
    box-shadow: 0 22px 40px rgba(79, 70, 229, 0.3);
}

.rate-display {
    background: rgba(248, 250, 252, 0.9);
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: var(--tool-radius-md);
    padding: 18px;
    text-align: center;
}

.rate-text {
    color: var(--tool-text-secondary);
    margin-bottom: 6px;
}

.rate-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--tool-accent-strong);
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    cursor: pointer;
}

.quick-amounts {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
}

.quick-amount-btn {
    padding: 12px 16px;
    border-radius: 12px;
    border: 1.5px solid rgba(249, 115, 22, 0.32);
    background: rgba(249, 115, 22, 0.08);
    color: var(--tool-accent-strong);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.quick-amount-btn:hover {
    background: var(--tool-accent-gradient);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: var(--tool-shadow-hover);
}

.section-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--tool-accent-strong);
}

.section-title .secondary {
    margin-left: auto;
}

.currency-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.currency-item {
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.3);
    padding: 16px;
    background: #ffffff;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.currency-item:hover {
    transform: translateY(-2px);
    border-color: var(--tool-accent);
    box-shadow: var(--tool-shadow-hover);
}

.currency-code {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--tool-accent-strong);
}

.currency-name {
    color: var(--tool-text-secondary);
    font-size: 0.9rem;
}

.currency-rate {
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    color: var(--tool-text-primary);
    font-weight: 600;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.25);
    background: #ffffff;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.history-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--tool-shadow-hover);
}

.history-conversion {
    font-weight: 600;
    color: var(--tool-text-primary);
}

.history-time {
    margin-left: auto;
    color: var(--tool-text-tertiary);
    font-size: 0.85rem;
}

.history-delete {
    padding: 8px 14px;
    border-radius: 10px;
    border: none;
    background: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
    color: #ffffff;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.history-delete:hover {
    transform: translateY(-2px);
    box-shadow: var(--tool-shadow-hover);
}

.tabs {
    display: inline-flex;
    gap: 8px;
    padding: 6px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
    flex-wrap: wrap;
}

.tab {
    padding: 10px 18px;
    border-radius: 999px;
    border: none;
    background: transparent;
    color: var(--tool-text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.tab.active {
    background: var(--tool-accent-gradient);
    color: #ffffff;
    box-shadow: 0 10px 20px rgba(79, 70, 229, 0.18);
}

.tab:hover {
    transform: translateY(-1px);
}

.tax-section {
    display: none;
}

.tax-section.active {
    display: block;
}

.result-card {
    background: #ffffff;
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.25);
    padding: 18px;
    text-align: center;
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.result-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--tool-shadow-hover);
}

.result-card-title {
    font-size: 0.9rem;
    color: var(--tool-text-secondary);
    margin-bottom: 6px;
}

.result-card-value {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--tool-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.result-card-subtitle {
    font-size: 0.8rem;
    color: var(--tool-text-tertiary);
    margin-top: 4px;
}

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

thead th {
    background: rgba(15, 23, 42, 0.08);
    color: var(--tool-text-primary);
    padding: 12px;
    text-align: left;
    font-weight: 700;
}

tbody td {
    padding: 12px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
    color: var(--tool-text-secondary);
}

tbody tr:last-child td {
    border-bottom: none;
}

tbody tr:hover {
    background: rgba(15, 23, 42, 0.04);
}

.unit-toggle {
    display: inline-flex;
    gap: 10px;
    padding: 6px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
}

.unit-btn {
    padding: 10px 20px;
    border-radius: 999px;
    border: none;
    background: transparent;
    color: var(--tool-text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.unit-btn.active {
    background: var(--tool-accent-gradient);
    color: #ffffff;
    box-shadow: 0 10px 20px rgba(79, 70, 229, 0.18);
}

.bmi-value {
    text-align: center;
}

.bmi-number {
    font-size: 3.6rem;
    font-weight: 700;
    background: var(--tool-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bmi-category {
    border-radius: var(--tool-radius-md);
    padding: 16px;
    font-size: 1.2rem;
    font-weight: 700;
    text-align: center;
}

.category-underweight {
    background: rgba(59, 130, 246, 0.12);
    color: #2563eb;
}

.category-normal {
    background: rgba(34, 197, 94, 0.12);
    color: #15803d;
}

.category-overweight {
    background: rgba(234, 179, 8, 0.16);
    color: #d97706;
}

.category-obese {
    background: rgba(248, 113, 113, 0.16);
    color: #b91c1c;
}

.chart-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-radius: var(--tool-radius-md);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.chart-row:hover {
    transform: translateX(4px);
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
}

.chart-category {
    font-weight: 700;
    color: var(--tool-text-primary);
}

.chart-range {
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    color: var(--tool-text-secondary);
}

.chart-row-underweight {
    background: rgba(59, 130, 246, 0.12);
    color: #2563eb;
}

.chart-row-normal {
    background: rgba(34, 197, 94, 0.12);
    color: #15803d;
}

.chart-row-overweight {
    background: rgba(234, 179, 8, 0.16);
    color: #d97706;
}

.chart-row-obese {
    background: rgba(248, 113, 113, 0.16);
    color: #b91c1c;
}

.bmi-scale {
    margin-top: 24px;
}

.scale-bar {
    height: 16px;
    border-radius: 999px;
    background: linear-gradient(90deg, #60a5fa 0%, #34d399 35%, #facc15 65%, #fb7185 100%);
    position: relative;
}

.scale-pointer {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 12px solid var(--tool-text-primary);
}

.scale-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    color: var(--tool-text-secondary);
    font-size: 0.85rem;
}

.info-card-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.info-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: var(--tool-accent-strong);
    font-size: 1.05rem;
}

.info-item {
    padding: 12px 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
    color: var(--tool-text-secondary);
}

.info-item:last-child {
    border-bottom: none;
}

.info-item strong {
    color: var(--tool-text-primary);
}

.ideal-weight {
    border-radius: var(--tool-radius-md);
    padding: 18px;
    border: 1px dashed rgba(34, 197, 94, 0.32);
    background: rgba(34, 197, 94, 0.08);
    text-align: center;
    font-weight: 600;
    color: #15803d;
}

.ideal-weight-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.ideal-weight-value {
    font-size: 1.2rem;
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
}

.age-highlight {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 28px 20px;
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(129, 140, 248, 0.28);
    background: rgba(129, 140, 248, 0.12);
    box-shadow: inset 0 0 0 1px rgba(129, 140, 248, 0.08);
}

.age-number {
    font-size: 3.8rem;
    font-weight: 700;
    background: var(--tool-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.age-label {
    color: var(--tool-text-secondary);
    font-size: 1rem;
    font-weight: 600;
}

.countdown-card {
    border-radius: var(--tool-radius-md);
    padding: 20px;
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.16) 0%, rgba(248, 113, 113, 0.18) 100%);
    border: 1px solid rgba(251, 191, 36, 0.26);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.countdown-title {
    font-weight: 700;
    color: #b45309;
}

.countdown-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: #9f1239;
}

.binary-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.binary-octet {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
    padding: 12px;
    border-radius: var(--tool-radius-sm);
    border: 1px solid rgba(148, 163, 184, 0.22);
    background: rgba(148, 163, 184, 0.12);
}

.binary-octet-group {
    display: contents;
}

.binary-bit {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.3);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--tool-text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.binary-octet-group.octet-1 .binary-bit {
    background: rgba(14, 165, 233, 0.14);
}

.binary-octet-group.octet-2 .binary-bit {
    background: rgba(236, 72, 153, 0.16);
}

.binary-octet-group.octet-3 .binary-bit {
    background: rgba(34, 197, 94, 0.16);
}

.binary-octet-group.octet-4 .binary-bit {
    background: rgba(249, 115, 22, 0.16);
}

.ip-input-container {
    display: flex;
    gap: 10px;
    justify-content: center;
    align-items: center;
}

.ip-octet,
.cidr-input {
    width: 80px;
    padding: 12px;
    border-radius: var(--tool-radius-sm);
    border: 1.5px solid rgba(148, 163, 184, 0.4);
    background: #ffffff;
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.cidr-input {
    width: 64px;
}

.ip-octet:focus,
.cidr-input:focus {
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.14);
    outline: none;
}

.separator {
    font-size: 1.4rem;
    color: var(--tool-text-tertiary);
}

.alert.warning {
    border-radius: var(--tool-radius-sm);
    padding: 12px 16px;
    background: rgba(248, 113, 113, 0.14);
    color: #b91c1c;
    border: 1px solid rgba(248, 113, 113, 0.28);
    text-align: center;
    font-weight: 600;
}

.intro-card {
    background: rgba(14, 165, 233, 0.08);
    border: 1px solid rgba(14, 165, 233, 0.22);
    border-radius: var(--tool-radius-md);
    line-height: 1.7;
    color: var(--tool-text-secondary);
}

.mode-selector {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.mode-btn {
    padding: 10px 22px;
    border-radius: 999px;
    border: 1.5px solid var(--tool-accent-border);
    background: rgba(239, 68, 68, 0.08);
    color: var(--tool-accent-strong);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.mode-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--tool-shadow-hover);
}

.mode-btn.active {
    background: var(--tool-accent-gradient);
    color: #ffffff;
    box-shadow: var(--tool-shadow-hover);
}

.timer-display {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    text-align: center;
    margin: 28px 0;
    font-family: 'Fira Code', 'JetBrains Mono', 'Courier New', monospace;
    background: var(--tool-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.timer-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.control-btn {
    padding: 14px 28px;
    border-radius: 999px;
    border: none;
    color: #ffffff;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.control-btn.start {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
}

.control-btn.pause {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.control-btn.reset {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.control-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--tool-shadow-hover);
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--tool-gap-md);
}

.setting-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 18px;
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: var(--tool-radius-md);
    background: rgba(248, 250, 252, 0.9);
    font-weight: 600;
    color: var(--tool-text-secondary);
}

.setting-field input[type=\"number\"] {
    padding: 10px 14px;
    border-radius: var(--tool-radius-sm);
    border: 1.5px solid rgba(148, 163, 184, 0.35);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    background: #ffffff;
}

.setting-field input[type=\"number\"]:focus {
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.12);
    outline: none;
}

.setting-field.toggle {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.setting-field input[type=\"checkbox\"] {
    width: 20px;
    height: 20px;
}

.history-card {
    margin-top: var(--tool-gap-md);
    padding: 18px;
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.25);
    background: #ffffff;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.history-card h3 {
    margin: 0;
    font-size: 1.05rem;
    color: var(--tool-text-primary);
}

.history-list {
    max-height: 260px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.history-entry {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    border-radius: var(--tool-radius-sm);
    background: rgba(248, 250, 252, 0.9);
    border: 1px solid rgba(148, 163, 184, 0.2);
}

.history-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--tool-text-primary);
}

.history-duration {
    color: var(--tool-text-tertiary);
    font-size: 0.9rem;
}

.history-time {
    color: var(--tool-text-tertiary);
    font-size: 0.85rem;
}

.history-empty {
    text-align: center;
    color: var(--tool-text-tertiary);
}

.history-card .secondary {
    align-self: flex-end;
    padding: 10px 18px;
    border-radius: 999px;
}

.control-stack {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.control-group.compact {
    gap: 10px;
}

.control-group.compact {
    gap: 10px;
}

.control-group.single {
    justify-content: center;
}

.inline-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.inline-controls input[type="number"],
.inline-controls input[type="date"],
.inline-controls input[type="datetime-local"],
.inline-controls select {
    flex: 1 1 180px;
}

.inline-controls button {
    flex: 0 0 auto;
}

.message {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    padding: 12px 20px;
    border-radius: var(--tool-radius-md);
    color: #ffffff;
    font-weight: 600;
    z-index: 1000;
    opacity: 0;
    transition: all 0.25s ease;
    box-shadow: var(--tool-shadow-lg);
    height: auto;
    min-height: auto;
    max-width: 400px;
    word-wrap: break-word;
    white-space: normal;
    line-height: 1.5;
}

.message.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.message.success {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
}

.message.error {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.message.info {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.message.warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.progress-bar {
    width: 100%;
    height: 10px;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.18);
    overflow: hidden;
}

.progress-fill {
    width: 0%;
    height: 100%;
    border-radius: inherit;
    background: var(--tool-accent-gradient);
    transition: width 0.3s ease;
}

.result-display {
    margin-top: var(--tool-gap-md);
    padding: 18px;
    border-radius: var(--tool-radius-md);
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.25);
    display: none;
    font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.7;
    display: none;
}

.result-display .result-item {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--tool-radius-sm);
    background: rgba(148, 163, 184, 0.08);
    border: 1px solid rgba(148, 163, 184, 0.18);
    margin-bottom: 10px;
}

.result-display .result-item:last-child {
    margin-bottom: 0;
}

.result-label {
    font-weight: 600;
    color: var(--tool-text-secondary);
}

.result-value {
    color: var(--tool-accent-strong);
    font-weight: 600;
}

.conversion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--tool-gap-md);
    margin-top: var(--tool-gap-md);
}

.conversion-card {
    padding: 18px;
    border-radius: var(--tool-radius-md);
    background: rgba(248, 250, 252, 0.92);
    border: 1px solid rgba(99, 102, 241, 0.2);
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.conversion-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--tool-shadow-hover);
    border-color: rgba(99, 102, 241, 0.35);
}

.conversion-label {
    font-weight: 600;
    color: var(--tool-text-secondary);
}

.conversion-value {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 1rem;
    color: var(--tool-accent-strong);
    font-weight: 600;
}

.conversion-value span {
    flex: 1;
}

.info-note {
    margin-top: var(--tool-gap-sm);
    padding: 14px 16px;
    border-radius: var(--tool-radius-md);
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.2);
    color: var(--tool-text-secondary);
    line-height: 1.6;
}

.info-note strong {
    color: var(--tool-accent-strong);
}

.copy-btn {
    padding: 6px 12px;
    border-radius: var(--tool-radius-pill);
    background: rgba(15, 118, 110, 0.12);
    border: 1px solid rgba(15, 118, 110, 0.32);
    color: #0f766e;
    font-size: 0.85rem;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.copy-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--tool-shadow-hover);
}

.copy-btn:active {
    transform: translateY(0);
}

.quick-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    border-radius: var(--tool-radius-md);
    background: rgba(14, 165, 233, 0.08);
    border: 1px solid rgba(14, 165, 233, 0.18);
}

.quick-actions .quick-label {
    font-weight: 600;
    color: var(--tool-text-secondary);
}

.quick-btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.quick-btn {
    padding: 10px 18px;
    border-radius: var(--tool-radius-pill);
    border: 1px solid rgba(14, 165, 233, 0.24);
    background: rgba(14, 165, 233, 0.08);
    color: var(--tool-accent-strong);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.quick-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--tool-shadow-hover);
}

.timezone-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--tool-gap-md);
    margin-top: var(--tool-gap-md);
}

.timezone-item {
    padding: 16px;
    border-radius: var(--tool-radius-md);
    background: rgba(14, 165, 233, 0.08);
    border: 1px solid rgba(14, 165, 233, 0.18);
}

.timezone-name {
    font-weight: 600;
    color: var(--tool-text-primary);
    margin-bottom: 6px;
}

.timezone-time {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    color: var(--tool-accent-strong);
}

@media (max-width: 768px) {
    .mode-selector {
        flex-direction: column;
    }

    .mode-btn {
        width: 100%;
    }

    .timer-controls {
        flex-direction: column;
    }

    .control-btn {
        width: 100%;
    }

    .inline-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .inline-controls input[type="number"],
    .inline-controls input[type="date"],
    .inline-controls input[type="datetime-local"],
    .inline-controls select,
    .inline-controls button {
        width: 100%;
    }

    .quick-btn-row {
        flex-direction: column;
    }

    .conversion-value {
        flex-direction: column;
        align-items: flex-start;
    }

    .conversion-value button {
        width: 100%;
    }

    .task-actions {
        flex-direction: column;
    }

    .task-actions button {
        width: 100%;
    }

    .task-filters {
        flex-direction: column;
        gap: var(--tool-gap-sm);
    }

    .task-filters .filter-chips {
        justify-content: center;
    }

    .task-filters .search-box {
        width: 100%;
    }

    .todo-card__header {
        flex-direction: column;
        align-items: flex-start;
    }

    .todo-card__checkbox {
        margin-top: 0;
    }

    .todo-card__description,
    .todo-card__meta,
    .todo-card__actions {
        margin-left: 0;
    }

    .todo-card__actions {
        flex-direction: column;
    }

    .todo-card__actions button {
        width: 100%;
    }

    .typing-display {
        font-size: 0.95rem;
        padding: 18px;
        min-height: 130px;
    }

    .typing-input {
        min-height: 90px;
    }

    .button-group {
        flex-direction: column;
    }

    .button-group .primary,
    .button-group .secondary {
        width: 100%;
    }
}

.intro-card {
    background: rgba(14, 165, 233, 0.08);
    border: 1px solid rgba(14, 165, 233, 0.22);
    border-radius: var(--tool-radius-md);
    line-height: 1.7;
    color: var(--tool-text-secondary);
}

@media (max-width: 768px) {
    .ip-octet,
    .cidr-input {
        width: 68px;
    }

    .binary-bit {
        width: 20px;
        height: 20px;
        font-size: 0.75rem;
    }
}
.search-box {
    position: relative;
}

.search-input {
    width: 100%;
    padding: 14px 48px 14px 18px;
    border-radius: 14px;
    border: 1.5px solid rgba(148, 163, 184, 0.4);
    background: #ffffff;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-input:focus {
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
    outline: none;
}

.search-icon {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--tool-text-tertiary);
    pointer-events: none;
}

.category-tabs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.category-tab {
    padding: 10px 18px;
    border-radius: 999px;
    border: 1.5px solid rgba(99, 102, 241, 0.28);
    background: rgba(99, 102, 241, 0.08);
    color: var(--tool-accent-strong);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.category-tab.active,
.category-tab:hover {
    background: var(--tool-accent-gradient);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: var(--tool-shadow-hover);
}

.entities-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.entity-card {
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.28);
    padding: 18px;
    background: #ffffff;
    text-align: center;
    position: relative;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.entity-card:hover {
    transform: translateY(-2px);
    border-color: var(--tool-accent);
    box-shadow: var(--tool-shadow-hover);
}

.entity-card.copied::after {
    content: '�Ѹ���';
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--tool-accent-gradient);
    color: #ffffff;
    padding: 4px 6px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.entity-symbol {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.entity-name {
    color: var(--tool-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 6px;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.entity-code {
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--tool-accent-strong);
    background: rgba(99, 102, 241, 0.08);
    border-radius: 8px;
    padding: 6px 8px;
    margin-top: 4px;
}

.no-results {
    text-align: center;
    color: var(--tool-text-secondary);
    padding: 40px 16px;
}

.message {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    padding: 14px 20px;
    border-radius: var(--tool-radius-sm);
    color: #ffffff;
    font-weight: 600;
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.2);
    opacity: 0;
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 1000;
    height: auto;
    min-height: auto;
    max-width: 400px;
    word-wrap: break-word;
    white-space: normal;
    line-height: 1.5;
}

.message.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.message.success {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
}

.message.info {
    background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
}

.message.error,
.message.warning {
    background: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
}

.range-value {
    font-weight: 600;
    color: var(--tool-text-secondary);
}

kbd {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 6px;
    background: rgba(15, 23, 42, 0.08);
    color: var(--tool-text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid rgba(148, 163, 184, 0.4);
    box-shadow: inset 0 -1px 0 rgba(15, 23, 42, 0.12);
}

.guideSection ul,
.result-section ul,
.download-section ul {
    margin: 0;
    padding-left: 0;
    list-style: none;
    display: grid;
    gap: 12px;
}

.guideSection li,
.result-section li,
.download-section li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    color: var(--tool-text-secondary);
    line-height: 1.65;
}

.guideSection li::before,
.result-section li::before,
.download-section li::before {
    content: "?";
    color: var(--tool-accent);
    font-weight: 700;
}

.security-notice,
#meta {
    border-radius: var(--tool-radius-sm);
    padding: 18px 20px;
    background: rgba(79, 70, 229, 0.12);
    border: 1px solid rgba(79, 70, 229, 0.26);
    color: var(--tool-text-secondary);
    line-height: 1.6;
}

body[data-tool="image-cropper"] .security-notice,
body[data-tool="image-cropper"] #meta {
    background: rgba(14, 165, 233, 0.14);
    border-color: rgba(14, 165, 233, 0.3);
}

body[data-tool="wechat-slicer"] .security-notice,
body[data-tool="wechat-slicer"] #meta {
    background: rgba(236, 72, 153, 0.14);
    border-color: rgba(236, 72, 153, 0.32);
}

body[data-tool="image-base64"] .security-notice,
body[data-tool="image-base64"] #meta {
    background: rgba(249, 115, 22, 0.15);
    border-color: rgba(249, 115, 22, 0.34);
}

body[data-tool="pdf-to-image"] .security-notice,
body[data-tool="pdf-to-image"] #meta {
    background: rgba(16, 185, 129, 0.12);
    border-color: rgba(16, 185, 129, 0.28);
}

body[data-tool="markdown-to-image"] .security-notice,
body[data-tool="markdown-to-image"] #meta {
    background: rgba(59, 130, 246, 0.12);
    border-color: rgba(59, 130, 246, 0.28);
}

body[data-tool="word-image-extractor"] .security-notice,
body[data-tool="word-image-extractor"] #meta {
    background: rgba(124, 58, 237, 0.12);
    border-color: rgba(124, 58, 237, 0.28);
}

body[data-tool="text-diff"] .security-notice,
body[data-tool="text-diff"] #meta {
    background: rgba(249, 115, 22, 0.12);
    border-color: rgba(249, 115, 22, 0.26);
}

body[data-tool="currency-converter"] .security-notice,
body[data-tool="currency-converter"] #meta {
    background: rgba(251, 146, 60, 0.12);
    border-color: rgba(251, 146, 60, 0.3);
}

body[data-tool="tax-calculator"] .security-notice,
body[data-tool="tax-calculator"] #meta {
    background: rgba(129, 140, 248, 0.12);
    border-color: rgba(129, 140, 248, 0.32);
}

body[data-tool="bmi-calculator"] .security-notice,
body[data-tool="bmi-calculator"] #meta {
    background: rgba(34, 197, 94, 0.12);
    border-color: rgba(34, 197, 94, 0.3);
}

body[data-tool="html-entities"] .security-notice,
body[data-tool="html-entities"] #meta {
    background: rgba(99, 102, 241, 0.12);
    border-color: rgba(99, 102, 241, 0.3);
}

.crop-info,
.image-info,
.base64-stats {
    background: rgba(15, 23, 42, 0.04);
    border-radius: var(--tool-radius-sm);
    padding: 12px 16px;
    color: var(--tool-text-secondary);
    line-height: 1.6;
}

.crop-info strong,
.image-info strong,
.base64-stats strong {
    color: var(--tool-text-primary);
}

.canvas-wrapper {
    position: relative;
    border-radius: var(--tool-radius-sm);
    overflow: hidden;
    border: 1px solid rgba(15, 23, 42, 0.08);
    background: #111827;
    min-height: 320px;
}

.crop-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.crop-box {
    position: absolute;
    border: 2px solid var(--tool-accent);
    border-radius: 4px;
    box-shadow: 0 0 0 100vmax rgba(17, 24, 39, 0.55);
    pointer-events: none;
}

.crop-handle {
    width: 12px;
    height: 12px;
    background: var(--tool-accent);
    border-radius: 999px;
    position: absolute;
    pointer-events: auto;
}

.crop-handle.nw { top: -6px; left: -6px; cursor: nwse-resize; }
.crop-handle.ne { top: -6px; right: -6px; cursor: nesw-resize; }
.crop-handle.sw { bottom: -6px; left: -6px; cursor: nesw-resize; }
.crop-handle.se { bottom: -6px; right: -6px; cursor: nwse-resize; }
.crop-handle.n { top: -6px; left: calc(50% - 6px); cursor: ns-resize; }
.crop-handle.s { bottom: -6px; left: calc(50% - 6px); cursor: ns-resize; }
.crop-handle.w { left: -6px; top: calc(50% - 6px); cursor: ew-resize; }
.crop-handle.e { right: -6px; top: calc(50% - 6px); cursor: ew-resize; }

.grid-container {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-container .grid-item {
    border-radius: var(--tool-radius-sm);
    overflow: hidden;
    background: rgba(15, 23, 42, 0.04);
    display: flex;
    align-items: center;
    justify-content: center;
}

.grid-container .grid-item img {
    width: 100%;
    height: auto;
    display: block;
}

.grid-container canvas,
.grid-container img {
    width: 100%;
    border-radius: var(--tool-radius-sm);
    border: 1px solid rgba(148, 163, 184, 0.2);
}

.result-text,
.base64-textarea {
    width: 100%;
    min-height: 160px;
    font-family: "Fira Code", "Cascadia Code", Consolas, monospace;
    box-sizing: border-box;
}

.tool-footer,
.footer {
    margin-top: 40px;
    text-align: center;
    color: var(--tool-text-tertiary);
    font-size: 0.9rem;
}

.message {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    padding: 14px 18px;
    border-radius: var(--tool-radius-sm);
    background: var(--tool-accent-gradient);
    color: #ffffff;
    font-size: 0.95rem;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.18);
    opacity: 0;
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 1000;
    height: auto;
    min-height: auto;
    max-width: 400px;
    word-wrap: break-word;
    white-space: normal;
    line-height: 1.5;
}

.message.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.message.success {
    background: linear-gradient(135deg, #22c55e, #16a34a);
}

.message.warning {
    background: linear-gradient(135deg, #f59e0b, #f97316);
}

.message.error {
    background: linear-gradient(135deg, #ef4444, #b91c1c);
}

@media (max-width: 1024px) {
    body.tool-page {
        padding: 26px 14px 40px;
    }

    .tool-shell {
        padding: 32px 28px 44px;
    }

    .tool-title {
        font-size: 2.2rem;
    }

    .tool-header__meta {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 768px) {
    .tool-shell {
        padding: 26px 20px 40px;
    }

    .uploadSection,
    .upload-area,
    .upload-section {
        padding: 32px 16px;
    }

    .button-group,
    .actions {
        flex-direction: column;
        align-items: stretch;
    }

    button,
    .upload-label,
    .crop-btn,
    .reset-btn,
    .download-btn,
    .copy-btn,
    .convert-btn,
    .paste-btn,
    .clear-btn {
        width: 100%;
    }
}

@media (max-width: 520px) {
    body.tool-page {
        padding: 20px 10px 32px;
    }

    .tool-shell {
        padding: 24px 18px 36px;
    }

    .tool-title {
        font-size: 1.9rem;
    }

    .tool-chip-list {
        width: 100%;
    }
}

.message.warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.task-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.task-actions button {
    flex: 1 1 180px;
}

.task-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--tool-gap-md);
    align-items: stretch;
    justify-content: space-between;
}

.task-filters .filter-chips {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-chip {
    padding: 8px 16px;
    border-radius: var(--tool-radius-pill);
    border: 1.5px solid rgba(139, 92, 246, 0.3);
    background: rgba(139, 92, 246, 0.1);
    color: var(--tool-accent-strong);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.filter-chip.active,
.filter-chip:hover {
    background: var(--tool-accent-gradient);
    color: #ffffff;
    box-shadow: var(--tool-shadow-hover);
    transform: translateY(-2px);
}

.task-filters .search-box {
    position: relative;
    flex: 1 1 260px;
}

.task-filters .search-box input {
    width: 100%;
    padding: 12px 14px 12px 40px;
    border-radius: var(--tool-radius-md);
    border: 1.5px solid rgba(148, 163, 184, 0.35);
    font-size: 0.95rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.task-filters .search-box input:focus {
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.18);
    outline: none;
}

.task-filters .search-box .search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    color: var(--tool-text-tertiary);
}

.todo-board {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.todo-card {
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.22);
    background: #ffffff;
    padding: 20px;
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.todo-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--tool-shadow-hover);
    border-color: rgba(139, 92, 246, 0.32);
}

.todo-card.completed {
    opacity: 0.75;
    border-left: 4px solid #22c55e;
}

.todo-card.priority-high {
    border-left: 4px solid #ef4444;
}

.todo-card.priority-medium {
    border-left: 4px solid #f59e0b;
}

.todo-card.priority-low {
    border-left: 4px solid #0ea5e9;
}

.todo-card__header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.todo-card__checkbox {
    width: 22px;
    height: 22px;
    margin-top: 2px;
    cursor: pointer;
    accent-color: var(--tool-accent);
}

.todo-card__title {
    flex: 1;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--tool-text-primary);
    word-break: break-all;
}

.todo-card.completed .todo-card__title {
    text-decoration: line-through;
    color: var(--tool-text-tertiary);
}

.todo-card__tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.todo-tag {
    padding: 4px 10px;
    border-radius: var(--tool-radius-pill);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    background: rgba(139, 92, 246, 0.15);
    color: var(--tool-accent-strong);
}

.todo-tag.priority-high {
    background: rgba(239, 68, 68, 0.16);
    color: #b91c1c;
}

.todo-tag.priority-medium {
    background: rgba(234, 179, 8, 0.18);
    color: #b45309;
}

.todo-tag.priority-low {
    background: rgba(14, 165, 233, 0.16);
    color: #0369a1;
}

.todo-tag.category {
    background: rgba(12, 74, 110, 0.12);
    color: #0f172a;
}

.todo-card__description {
    margin: 14px 0 10px 34px;
    color: var(--tool-text-secondary);
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-word;
}

.todo-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-left: 34px;
    font-size: 0.85rem;
    color: var(--tool-text-tertiary);
}

.todo-card__actions {
    display: flex;
    gap: 10px;
    margin-top: 18px;
    margin-left: 34px;
}

.todo-card__actions button {
    flex: 0 0 auto;
}

.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--tool-text-tertiary);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 12px;
}

.empty-state-text {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.empty-state-hint {
    color: var(--tool-text-tertiary);
}

.button-group {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.task-actions {
    display: flex;
    flex-wrap: wrap;
}

.typing-status-panel {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.typing-progress {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.typing-countdown {
    text-align: center;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--tool-accent-strong);
}

.typing-unit {
    margin-left: 6px;
    font-size: 0.8rem;
    color: var(--tool-text-tertiary);
}

.typing-test-panel {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.typing-display {
    border-radius: var(--tool-radius-md);
    border: 1.5px solid rgba(148, 163, 184, 0.3);
    background: rgba(248, 250, 252, 0.95);
    padding: 24px;
    min-height: 160px;
    font-size: 1.05rem;
    line-height: 1.8;
    letter-spacing: 0.3px;
    position: relative;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.typing-display.active {
    background: #ffffff;
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.18);
}

.typing-char {
    position: relative;
}

.typing-char.correct {
    color: #16a34a;
}

.typing-char.incorrect {
    color: #dc2626;
    background: rgba(248, 113, 113, 0.2);
}

.typing-char.current {
    background: var(--tool-accent);
    color: #ffffff;
    border-radius: 4px;
    animation: typing-cursor 1s infinite;
}

@keyframes typing-cursor {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.typing-input {
    width: 100%;
    min-height: 110px;
    padding: 18px;
    border-radius: var(--tool-radius-md);
    border: 1.5px solid rgba(148, 163, 184, 0.35);
    background: #ffffff;
    font-size: 1.05rem;
    line-height: 1.7;
    resize: vertical;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.typing-input:focus {
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.18);
    outline: none;
}

.typing-input:disabled {
    background: rgba(248, 250, 252, 0.8);
    color: var(--tool-text-tertiary);
    cursor: not-allowed;
}

.typing-result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--tool-gap-md);
}

.typing-rating {
    margin-top: var(--tool-gap-md);
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.24);
    background: rgba(248, 250, 252, 0.92);
    text-align: center;
    padding: 24px 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.typing-rating__emoji {
    font-size: 2.6rem;
}

.typing-rating__title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--tool-text-primary);
}

.typing-rating__description {
    margin: 0;
    color: var(--tool-text-secondary);
}

.speech-alert {
    display: none;
    margin-bottom: var(--tool-gap-md);
}

.speech-alert.show {
    display: block;
}

.speech-controls .setting-field {
    gap: 12px;
}

.speech-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--tool-text-secondary);
}

.checkbox-toggle input {
    width: 18px;
    height: 18px;
}

.speech-mic-panel {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    background: rgba(124, 58, 237, 0.06);
    border: 1px solid rgba(124, 58, 237, 0.18);
}

.speech-mic-status {
    font-weight: 700;
    color: var(--tool-accent-strong);
    font-size: 1.1rem;
}

.speech-mic-status.recording {
    color: #ef4444;
}

.speech-mic-hint {
    color: var(--tool-text-tertiary);
    font-size: 0.95rem;
}

.speech-mic-button {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: none;
    background: var(--tool-accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 18px 45px rgba(124, 58, 237, 0.35);
}

.speech-mic-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 22px 55px rgba(124, 58, 237, 0.4);
}

.speech-mic-button:active {
    transform: translateY(0);
}

.speech-mic-button.recording {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    animation: speech-pulse 1.5s ease-in-out infinite;
}

@keyframes speech-pulse {
    0%,
    100% {
        box-shadow: 0 18px 45px rgba(239, 68, 68, 0.35);
    }

    50% {
        box-shadow: 0 18px 45px rgba(239, 68, 68, 0.55), 0 0 0 18px rgba(239, 68, 68, 0.22);
    }
}

.speech-mic-icon {
    font-size: 3.4rem;
    color: #ffffff;
}

.speech-result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.speech-word-count {
    font-size: 0.9rem;
    color: var(--tool-text-tertiary);
}

.speech-result-text {
    min-height: 240px;
    padding: 20px;
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.3);
    background: rgba(248, 250, 252, 0.96);
    line-height: 1.8;
    font-size: 1.05rem;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-y: auto;
}

.speech-result-text:empty::before {
    content: 'ʶ������ֽ���ʾ������...';
    color: var(--tool-text-tertiary);
    font-style: italic;
}

.speech-interim {
    color: var(--tool-text-tertiary);
    font-style: italic;
}

.speech-actions .speech-btn {
    flex: 1 1 180px;
    padding: 12px 20px;
    border-radius: var(--tool-radius-pill);
    border: none;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.speech-actions .speech-btn:hover {
    transform: translateY(-2px);
}

.speech-actions .speech-btn:active {
    transform: translateY(0);
}

.speech-actions .copy-btn {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    color: #ffffff;
    box-shadow: 0 12px 28px rgba(34, 197, 94, 0.26);
}

.speech-actions .download-btn {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: #ffffff;
    box-shadow: 0 12px 28px rgba(59, 130, 246, 0.26);
}

.speech-actions .clear-btn {
    background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%);
    color: #ffffff;
    box-shadow: 0 12px 28px rgba(75, 85, 99, 0.22);
}

.speech-history-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 380px;
    overflow-y: auto;
}

.speech-history-item {
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.28);
    padding: 14px 16px;
    background: rgba(248, 250, 252, 0.95);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.speech-history-item:hover {
    transform: translateX(4px);
    box-shadow: var(--tool-shadow-hover);
    border-color: rgba(124, 58, 237, 0.32);
}

.speech-history-time {
    font-size: 0.85rem;
    color: var(--tool-text-tertiary);
    margin-bottom: 6px;
}

.speech-history-text {
    max-height: 56px;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--tool-text-secondary);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .typing-display {
        font-size: 0.95rem;
        padding: 18px;
        min-height: 130px;
    }

    .typing-input {
        min-height: 90px;
    }

    .button-group {
        flex-direction: column;
    }

    .button-group .primary,
    .button-group .secondary {
        width: 100%;
    }

    .speech-mic-button {
        width: 120px;
        height: 120px;
    }

    .speech-mic-icon {
        font-size: 2.8rem;
    }

    .speech-actions .speech-btn {
        width: 100%;
    }
}

.tts-textarea {
    width: 100%;
    min-height: 220px;
    padding: 18px;
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.35);
    background: #ffffff;
    font-size: 1.05rem;
    line-height: 1.8;
    resize: vertical;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.tts-textarea:focus {
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.18);
    outline: none;
}

.tts-char-count {
    text-align: right;
    color: var(--tool-text-tertiary);
    margin-top: 6px;
    font-size: 0.9rem;
}

.tts-actions-panel {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.tts-status {
    text-align: center;
    padding: 12px 16px;
    border-radius: var(--tool-radius-pill);
    border: 1px solid rgba(148, 163, 184, 0.25);
    background: rgba(248, 250, 252, 0.95);
    font-weight: 600;
    color: var(--tool-text-secondary);
}

.tts-status.speaking {
    color: #16a34a;
}

.tts-status.paused {
    color: #d97706;
}

.tts-saved-panel {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-sm);
}

.tts-saved-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tts-saved-item {
    padding: 14px 16px;
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.25);
    background: rgba(248, 250, 252, 0.95);
    display: flex;
    align-items: center;
    gap: 14px;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.tts-saved-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--tool-shadow-hover);
    border-color: rgba(59, 130, 246, 0.3);
}

.tts-saved-content {
    flex: 1;
    color: var(--tool-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tts-saved-actions {
    display: flex;
    gap: 10px;
}

.tts-guide ul {
    margin: 0;
    padding-left: 20px;
    color: var(--tool-text-secondary);
    line-height: 1.8;
}

@media (max-width: 768px) {
    .typing-display {
        font-size: 0.95rem;
        padding: 18px;
        min-height: 130px;
    }

    .typing-input {
        min-height: 90px;
    }

    .button-group {
        flex-direction: column;
    }

    .button-group .primary,
    .button-group .secondary {
        width: 100%;
    }

    .speech-mic-button {
        width: 120px;
        height: 120px;
    }

    .speech-mic-icon {
        font-size: 2.8rem;
    }

    .speech-actions .speech-btn {
        width: 100%;
    }

    .tts-saved-item {
        flex-direction: column;
        align-items: stretch;
    }

    .tts-saved-actions {
        justify-content: flex-end;
    }
}

.tts-saved-actions {
    display: flex;
    gap: 10px;
}

tts-guide ul {
    margin: 0;
    padding-left: 20px;
    color: var(--tool-text-secondary);
    line-height: 1.8;
}

.tool-shell--wide {
    width: 100%;
    max-width: none;
    min-height: 100vh;
}

.drawing-main {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.drawing-intro {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.drawing-intro div {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    color: rgba(241, 245, 249, 0.78);
}

.drawing-workspace {
    position: relative;
    border-radius: var(--tool-radius-lg);
    border: 1px solid rgba(148, 163, 184, 0.18);
    background: rgba(15, 23, 42, 0.75);
    overflow: hidden;
    min-height: 640px;
    height: calc(100vh - 320px);
    max-height: 900px;
    width: 100%;
    display: flex;
    flex-direction: column;
}

.drawing-board-app {
    display: flex;
    width: 100%;
    height: 100%;
    min-height: 640px;
    position: relative;
    color: #f8fafc;
    overflow: hidden;
    flex: 1;
    min-height: 0;
}

.drawing-board-app .sidebar {
    width: 80px;
    background: rgba(17, 24, 39, 0.92);
    backdrop-filter: blur(12px);
    border-right: 1px solid rgba(99, 102, 241, 0.25);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 0;
    transition: width 0.3s ease;
    overflow-y: auto;
    overflow-x: hidden;
    box-sizing: border-box;
    flex-shrink: 0;
    height: 100%;
}

/* ���ز�������������������������� */
.drawing-board-app .sidebar {
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE �� Edge */
}

.drawing-board-app .sidebar::-webkit-scrollbar {
    width: 0;
    background: transparent;
    display: none; /* Chrome, Safari, Opera */
}

.drawing-board-app .sidebar::-webkit-scrollbar-thumb {
    background: transparent;
}

.drawing-board-app .sidebar.expanded {
    width: 260px;
}

.drawing-board-app .logo-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px;
    margin-bottom: 18px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.drawing-board-app .logo {
    font-size: 28px;
}

.drawing-board-app .logo-text {
    font-size: 12px;
    letter-spacing: 2px;
    color: rgba(129, 140, 248, 0.9);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.drawing-board-app .sidebar.expanded .logo-text {
    opacity: 1;
}

.drawing-board-app .toolbar {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 0 12px;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: 0;
}

/* ���ع����������� */
.drawing-board-app .toolbar {
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE �� Edge */
}

.drawing-board-app .toolbar::-webkit-scrollbar {
    width: 0;
    background: transparent;
    display: none; /* Chrome, Safari, Opera */
}

.drawing-board-app .toolbar::-webkit-scrollbar-thumb {
    background: transparent;
}

.drawing-board-app .tool-section {
    flex-shrink: 0;
}
.drawing-board-app .tool-section-title {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(203, 213, 225, 0.6);
    margin-bottom: 10px;
}

.drawing-board-app .tool-btn {
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid transparent;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    position: relative;
    overflow: hidden;
}

.drawing-board-app .sidebar.expanded .tool-btn {
    width: 100%;
    flex-direction: row;
    justify-content: flex-start;
    padding: 0 12px;
    gap: 10px;
}

.drawing-board-app .tool-btn:hover {
    transform: translateX(4px);
    border-color: rgba(99, 102, 241, 0.35);
    background: rgba(99, 102, 241, 0.18);
    box-shadow: 0 10px 24px rgba(99, 102, 241, 0.25);
}

.drawing-board-app .tool-btn.active {
    background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 14px 28px rgba(99, 102, 241, 0.35);
}

.drawing-board-app .tool-btn svg {
    width: 22px;
    height: 22px;
    fill: rgba(203, 213, 225, 0.85);
}

.drawing-board-app .tool-btn-label {
    font-size: 12px;
    color: rgba(203, 213, 225, 0.75);
}

.drawing-board-app .sidebar:not(.expanded) .tool-btn-label {
    display: none;
}

.drawing-board-app .color-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.drawing-board-app .sidebar.expanded .color-grid {
    grid-template-columns: repeat(5, 1fr);
}

.drawing-board-app .color-item {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 10px;
    border: 2px solid transparent;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.drawing-board-app .color-item:hover {
    transform: scale(1.08);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.35);
}

.drawing-board-app .color-item.active {
    border-color: rgba(255, 255, 255, 0.9);
}

.drawing-board-app .color-item.active::after {
    content: '?';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-weight: 700;
}

.drawing-board-app .color-picker-custom {
    width: 100%;
    height: 40px;
    border-radius: 10px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: rgba(15, 23, 42, 0.6);
    cursor: pointer;
}

.drawing-board-app .sidebar input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.2);
    outline: none;
}

.drawing-board-app input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--tool-accent-gradient);
    box-shadow: 0 6px 14px rgba(99, 102, 241, 0.35);
    cursor: pointer;
    border: none;
}

.drawing-board-app input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--tool-accent-gradient);
    border: none;
}

.drawing-board-app .main-content {
    flex: 1;
    display: flex !important;
    flex-direction: column;
    position: relative;
    color: #e2e8f0;
    background: rgba(15, 23, 42, 0.6);
    min-width: 0;
    min-height: 0;
    overflow: hidden;
    height: 100%;
}

.toggle-sidebar-btn {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translate(-50%, -50%);
    width: 32px;
    height: 70px;
    border-radius: 999px;
    border: 1px solid rgba(99, 102, 241, 0.4);
    background: rgba(99, 102, 241, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
    z-index: 20;
}

.toggle-sidebar-btn:hover {
    background: rgba(99, 102, 241, 0.45);
    border-color: rgba(129, 140, 248, 0.6);
}

.toggle-sidebar-btn svg {
    width: 16px;
    height: 16px;
    fill: #f8fafc;
}

.drawing-board-app .sidebar.expanded + .main-content .toggle-sidebar-btn svg {
    transform: rotate(180deg);
}

.drawing-board-app .top-toolbar {
    background: rgba(17, 24, 39, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(99, 102, 241, 0.25);
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
    z-index: 10;
    min-height: 60px;
}

.drawing-board-app .top-toolbar-left,
.drawing-board-app .top-toolbar-right {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    flex-shrink: 0;
}

.drawing-board-app .top-toolbar .control-group {
    display: flex !important;
    flex-direction: row !important;
    align-items: center;
    gap: 8px;
    margin: 0;
    flex-wrap: nowrap;
}

.drawing-board-app .top-toolbar .control-group input[type="range"] {
    flex-shrink: 0;
}

.drawing-board-app .top-toolbar .control-group:has(.brush-slider) {
    gap: 10px;
}

.drawing-board-app .top-toolbar .control-label {
    font-size: 12px;
    color: rgba(226, 232, 240, 0.65);
    white-space: nowrap;
    margin-bottom: 0;
    font-weight: 500;
    line-height: 1.4;
}

.drawing-board-app .top-toolbar .size-display {
    min-width: 35px;
    font-size: 12px;
    padding: 3px 6px;
}

.drawing-board-app .icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: rgba(15, 23, 42, 0.65);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    flex-shrink: 0;
}

.drawing-board-app .icon-btn:hover {
    transform: translateY(-2px);
    border-color: rgba(99, 102, 241, 0.4);
    background: rgba(59, 130, 246, 0.2);
    box-shadow: 0 12px 24px rgba(59, 130, 246, 0.25);
}

.drawing-board-app .icon-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.drawing-board-app .icon-btn svg {
    width: 18px;
    height: 18px;
    fill: rgba(226, 232, 240, 0.9);
}

.drawing-board-app .brush-slider {
    width: 120px;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(148, 163, 184, 0.2);
    border-radius: 999px;
    outline: none;
    cursor: pointer;
}

.drawing-board-app .brush-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--tool-accent-gradient);
    box-shadow: 0 6px 14px rgba(99, 102, 241, 0.35);
    cursor: pointer;
    border: none;
}

.drawing-board-app .brush-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--tool-accent-gradient);
    border: none;
    cursor: pointer;
}

.drawing-board-app .canvas-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.85);
    position: relative;
    transition: background 0.3s ease;
    min-height: 0;
    overflow: auto;
    padding: 16px;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
}

/* ���ػ���������������������������� */
.drawing-board-app .canvas-wrapper::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.drawing-board-app .canvas-wrapper::-webkit-scrollbar-track {
    background: rgba(15, 23, 42, 0.5);
    border-radius: 4px;
}

.drawing-board-app .canvas-wrapper::-webkit-scrollbar-thumb {
    background: rgba(99, 102, 241, 0.4);
    border-radius: 4px;
}

.drawing-board-app .canvas-wrapper::-webkit-scrollbar-thumb:hover {
    background: rgba(99, 102, 241, 0.6);
}

.canvas-wrapper.grid-background {
    background-image: linear-gradient(rgba(99, 102, 241, 0.12) 1px, transparent 1px), linear-gradient(90deg, rgba(99, 102, 241, 0.12) 1px, transparent 1px);
    background-size: 20px 20px;
}

.drawing-board-app .canvas-container {
    position: relative;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.45);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: calc(100% - 32px);
    height: calc(100% - 32px);
    max-width: 100%;
    max-height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    flex-shrink: 1;
}

.drawing-board-app .canvas-container:hover {
    transform: scale(1.01);
    box-shadow: 0 28px 70px rgba(15, 23, 42, 0.55);
}

.drawing-board-app #drawingCanvas {
    display: block;
    cursor: crosshair;
    width: 100% !important;
    height: 100% !important;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    box-sizing: border-box;
    touch-action: none;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

.drawing-board-app .size-display {
    min-width: 40px;
    text-align: center;
    font-weight: 600;
    font-size: 13px;
    color: rgba(248, 250, 252, 0.9);
    background: rgba(59, 130, 246, 0.35);
    border-radius: 6px;
    padding: 4px 8px;
    border: 1px solid rgba(148, 163, 184, 0.25);
    white-space: nowrap;
}

.drawing-board-app .drawing-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 14px 24px;
    background: rgba(17, 24, 39, 0.92);
    backdrop-filter: blur(12px);
    border-top: 1px solid rgba(99, 102, 241, 0.25);
    flex-shrink: 0;
    z-index: 10;
}

.drawing-footer__hint {
    font-size: 12px;
    color: rgba(203, 213, 225, 0.65);
}

.coords {
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-weight: 600;
    color: rgba(129, 140, 248, 0.85);
    padding: 6px 12px;
    background: rgba(37, 47, 80, 0.8);
    border-radius: 10px;
}

@media (max-width: 1024px) {
    .drawing-workspace {
        min-height: 560px;
        height: calc(100vh - 280px);
        max-height: 800px;
    }
    
    .drawing-board-app {
        min-height: 560px;
    }
    
    .drawing-board-app .canvas-wrapper {
        padding: 12px;
    }
    
    .drawing-board-app .canvas-container {
        max-width: 100%;
        max-height: 100%;
    }
    
    .drawing-board-app .top-toolbar {
        padding: 10px 16px;
        gap: 12px;
        min-height: auto;
    }
    
    .drawing-board-app .top-toolbar-left,
    .drawing-board-app .top-toolbar-right {
        gap: 12px;
    }
    
    .drawing-board-app .top-toolbar .control-group {
        gap: 6px;
    }
    
    .drawing-board-app .brush-slider {
        width: 100px;
    }
}

@media (max-width: 768px) {
    .drawing-board-app {
        flex-direction: column;
    }

    .drawing-board-app .sidebar {
        width: 100%;
        flex-direction: row;
        overflow-x: auto;
        overflow-y: hidden;
        scrollbar-width: none; /* Firefox */
        -ms-overflow-style: none; /* IE �� Edge */
        height: auto;
        min-height: auto;
    }

    .drawing-board-app .sidebar::-webkit-scrollbar {
        display: none; /* Chrome, Safari, Opera */
    }

    .drawing-board-app .sidebar.expanded {
        width: 100%;
    }

    .drawing-board-app .toolbar {
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 12px;
        overflow-x: auto;
        overflow-y: hidden;
        scrollbar-width: none; /* Firefox */
        -ms-overflow-style: none; /* IE �� Edge */
    }

    .drawing-board-app .toolbar::-webkit-scrollbar {
        display: none; /* Chrome, Safari, Opera */
    }

    .drawing-board-app .tool-section {
        min-width: 160px;
        flex-shrink: 0;
    }

    .drawing-board-app .top-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        padding: 12px 16px;
    }

    .drawing-board-app .top-toolbar-left,
    .drawing-board-app .top-toolbar-right {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
        width: 100%;
    }
    
    .drawing-board-app .top-toolbar .control-group {
        gap: 6px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .drawing-board-app .top-toolbar .control-group:has(.brush-slider) {
        gap: 8px;
    }
    
    .drawing-board-app .brush-slider {
        width: 80px;
    }
    
    .drawing-board-app .icon-btn {
        width: 36px;
        height: 36px;
    }
    
    .drawing-board-app .icon-btn svg {
        width: 16px;
        height: 16px;
    }
    
    .drawing-board-app .top-toolbar .size-display {
        min-width: 30px;
        font-size: 11px;
        padding: 2px 5px;
    }

    .drawing-board-app .toggle-sidebar-btn {
        display: none;
    }

    .drawing-board-app .drawing-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        padding: 12px 16px;
    }
    
    .drawing-board-app .canvas-wrapper {
        padding: 12px;
    }
}

.web-archiver-main {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.web-archiver-panel {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.web-archiver-input-row {
    display: flex;
    gap: var(--tool-gap-sm);
    flex-wrap: wrap;
}

.web-archiver-input-row input[type="url"] {
    flex: 1 1 260px;
    padding: 14px 16px;
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.35);
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.web-archiver-input-row input[type="url"]:focus {
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.18);
    outline: none;
}

.web-archiver-input-row button {
    flex: 0 0 auto;
}

.web-archiver-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--tool-gap-sm);
}

.option-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 16px;
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.25);
    background: rgba(248, 250, 252, 0.95);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.option-item:hover {
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--tool-shadow-hover);
    transform: translateY(-2px);
}

.option-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--tool-accent);
}

.option-item span {
    font-weight: 600;
    color: var(--tool-text-primary);
}

.option-item p {
    margin: 6px 0 0;
    font-size: 0.85rem;
    color: var(--tool-text-tertiary);
}

.web-archiver-progress {
    display: none;
    flex-direction: column;
    gap: var(--tool-gap-sm);
}

.web-archiver-progress.show {
    display: flex;
}

.progress-details {
    display: grid;
    gap: 4px;
    font-size: 0.95rem;
    color: var(--tool-text-secondary);
    background: rgba(248, 250, 252, 0.95);
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.25);
    padding: 14px;
}

.progress-log {
    max-height: 200px;
    overflow-y: auto;
    padding: 12px;
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.22);
    background: rgba(15, 23, 42, 0.04);
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    display: grid;
    gap: 6px;
}

.progress-log-item {
    padding: 6px 8px;
    border-left: 3px solid var(--tool-accent);
    background: rgba(148, 163, 184, 0.08);
}

.progress-log-item.success {
    border-left-color: #16a34a;
    color: #15803d;
}

.progress-log-item.error {
    border-left-color: #ef4444;
    color: #b91c1c;
}

.progress-log-item.warning {
    border-left-color: #f59e0b;
    color: #b45309;
}

.web-archiver-results {
    display: none;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.web-archiver-results.show {
    display: flex;
}

.web-archiver-downloads {
    display: flex;
    flex-wrap: wrap;
    gap: var(--tool-gap-sm);
    justify-content: center;
}

.web-archiver-downloads button {
    flex: 1 1 180px;
}

.web-archiver-history {
    display: none;
    flex-direction: column;
    gap: var(--tool-gap-sm);
}

.web-archiver-history.show {
    display: flex;
}

.history-actions {
    display: flex;
    justify-content: flex-end;
}

.web-archiver-usage ul {
    margin: 0;
    padding-left: 20px;
    line-height: 1.8;
    color: var(--tool-text-secondary);
}

.web-archiver-usage ul ul {
    margin-top: 4px;
    margin-bottom: 8px;
}

.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 3px solid rgba(255, 255, 255, 0.4);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: tool-spin 0.8s linear infinite;
}

@keyframes tool-spin {
    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 768px) {
    .web-archiver-downloads {
        flex-direction: column;
    }

    .web-archiver-downloads button {
        width: 100%;
    }
}

.web-archiver-main {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.life-main {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.life-quote blockquote {
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.8;
    color: rgba(51, 65, 85, 0.85);
    text-align: center;
}

.life-inputs {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-sm);
}

.life-inputs .control-grid {
    gap: var(--tool-gap-sm);
}

.life-inputs .full-width {
    margin-top: 4px;
}

.life-results {
    display: none;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.life-results.show {
    display: flex;
}

.life-progress .progress-bar-container {
    position: relative;
    height: 42px;
    border-radius: 999px;
    overflow: hidden;
    background: rgba(148, 163, 184, 0.18);
}

.life-progress .progress-bar-fill {
    height: 100%;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding-right: 14px;
    font-weight: 700;
    color: #fff;
    background: var(--tool-accent-gradient);
    transition: width 0.6s ease;
}

.life-progress .progress-info {
    margin-top: 12px;
    text-align: center;
    font-size: 0.95rem;
    color: var(--tool-text-secondary);
}

.life-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--tool-gap-sm);
}

.life-stat-card {
    padding: 20px 16px;
    border-radius: var(--tool-radius-lg);
    border: 1px solid rgba(139, 92, 246, 0.18);
    background: rgba(236, 233, 255, 0.65);
    backdrop-filter: blur(6px);
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.life-stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px rgba(139, 92, 246, 0.25);
}

.life-stat-value {
    font-size: 2.1rem;
    font-weight: 700;
    background: var(--tool-accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 6px;
}

.life-stat-label {
    font-size: 0.9rem;
    color: var(--tool-text-secondary);
    letter-spacing: 0.02em;
}

.life-weeks {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-sm);
}

.life-weeks .weeks-tip {
    margin: 0;
    font-size: 0.9rem;
    color: var(--tool-text-secondary);
    text-align: center;
}

.weeks-grid {
    display: grid;
    grid-template-columns: repeat(52, minmax(6px, 1fr));
    gap: 4px;
    padding: 12px;
    border-radius: var(--tool-radius-md);
    border: 1px solid rgba(148, 163, 184, 0.18);
    background: rgba(241, 245, 249, 0.45);
    max-height: 320px;
    overflow-y: auto;
}

.week-block {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 3px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.week-block.past {
    background: rgba(99, 102, 241, 0.9);
}

.week-block.current {
    background: rgba(244, 114, 182, 0.85);
    box-shadow: 0 0 10px rgba(244, 114, 182, 0.55);
}

.week-block.future {
    background: rgba(148, 163, 184, 0.35);
}

.week-block:hover {
    transform: scale(1.5);
    box-shadow: 0 8px 18px rgba(44, 82, 130, 0.28);
    z-index: 5;
}

.weeks-legend {
    display: flex;
    justify-content: center;
    gap: 18px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--tool-text-secondary);
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 4px;
}

.legend-color.past {
    background: rgba(99, 102, 241, 0.9);
}

.legend-color.current {
    background: rgba(244, 114, 182, 0.85);
}

.legend-color.future {
    background: rgba(148, 163, 184, 0.45);
}

.life-inspiration {
    text-align: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(244, 114, 182, 0.18));
    border-radius: var(--tool-radius-lg);
    padding: 26px 20px;
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.life-inspiration h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--tool-accent-strong);
}

.life-inspiration p {
    margin: 0;
    font-size: 1rem;
    line-height: 1.8;
    color: rgba(51, 65, 85, 0.88);
}

.message {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    padding: 12px 20px;
    border-radius: var(--tool-radius-md);
    color: #fff;
    font-weight: 600;
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.15);
    max-width: 400px;
    word-wrap: break-word;
    white-space: normal;
    line-height: 1.5;
}

.message.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.message.success {
    background: linear-gradient(135deg, #22c55e, #16a34a);
}

.message.error {
    background: linear-gradient(135deg, #ef4444, #b91c1c);
}

.message.info {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}

@media (max-width: 1024px) {
    .weeks-grid {
        grid-template-columns: repeat(26, minmax(6px, 1fr));
    }
}

@media (max-width: 768px) {
    .life-stats-grid {
        grid-template-columns: repeat(2, minmax(140px, 1fr));
    }

    .weeks-grid {
        grid-template-columns: repeat(13, minmax(6px, 1fr));
    }
}

@media (max-width: 480px) {
    .life-stats-grid {
        grid-template-columns: 1fr;
    }

    .weeks-grid {
        grid-template-columns: repeat(10, minmax(6px, 1fr));
    }
}

.tool-shell--wide {
    width: 100%;
    max-width: none;
    min-height: 100vh;
}

.panel-stack {
    display: grid;
    gap: var(--tool-gap-md);
}

.panel-stack .panel.item {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: var(--tool-radius-lg);
    box-shadow: 0 18px 34px rgba(15, 23, 42, 0.08);
}

.click-main {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.click-settings .panel-body {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.click-time-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--tool-gap-sm);
    justify-content: center;
}

.time-btn {
    padding: 10px 22px;
    border-radius: 999px;
    border: 2px solid rgba(245, 158, 11, 0.65);
    background: rgba(255, 255, 255, 0.85);
    color: rgba(146, 64, 14, 0.9);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.time-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(245, 158, 11, 0.25);
}

.time-btn.active {
    background: var(--tool-accent-gradient);
    color: #fff;
    border-color: transparent;
}

.click-area {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-radius: var(--tool-radius-lg);
    border: 4px dashed rgba(245, 158, 11, 0.65);
    background: linear-gradient(135deg, rgba(255, 248, 231, 0.9), rgba(255, 237, 213, 0.9));
    min-height: 320px;
    padding: 32px 20px;
    user-select: none;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.click-area:hover {
    transform: scale(1.02);
    border-color: rgba(234, 179, 8, 0.8);
    box-shadow: 0 20px 40px rgba(245, 158, 11, 0.25);
}

.click-area:active {
    transform: scale(0.98);
}

@keyframes click-pulse {
    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.9;
    }
}

.click-area.active {
    background: var(--tool-accent-gradient);
    border-style: solid;
    animation: click-pulse 0.6s ease infinite;
}

.click-count {
    font-size: clamp(3rem, 6vw, 6rem);
    font-weight: 800;
    margin-bottom: 16px;
    background: var(--tool-accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.click-area.active .click-count {
    color: #fff;
    -webkit-text-fill-color: #fff;
    background: none;
}

.click-text {
    font-size: 1.2rem;
    color: rgba(100, 116, 139, 0.85);
}

.click-area.active .click-text {
    color: rgba(255, 255, 255, 0.95);
}

.timer-display {
    margin-top: 12px;
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.click-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--tool-gap-sm);
}

.click-stats-grid .stat-card {
    padding: 18px 16px;
    border-radius: var(--tool-radius-md);
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(248, 196, 113, 0.3);
    text-align: center;
    box-shadow: 0 10px 24px rgba(245, 158, 11, 0.15);
}

.click-stats-grid .stat-label {
    font-size: 0.9rem;
    color: rgba(71, 85, 105, 0.75);
    margin-bottom: 6px;
}

.click-stats-grid .stat-value {
    font-size: 2rem;
    font-weight: 700;
    background: var(--tool-accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.click-guide .panel-body {
    padding-top: 8px;
}

.click-guide .guide-list {
    margin: 0;
    padding-left: 20px;
    line-height: 1.9;
    color: rgba(71, 85, 105, 0.85);
}

.click-result-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.75);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1200;
    padding: 20px;
}

.click-result-panel {
    background: rgba(255, 255, 255, 0.96);
    border-radius: var(--tool-radius-xl);
    padding: 32px 28px;
    max-width: 360px;
    width: 100%;
    text-align: center;
    box-shadow: 0 30px 60px rgba(15, 23, 42, 0.35);
    border: 1px solid rgba(248, 196, 113, 0.4);
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.click-result-panel .result-title {
    font-size: 2rem;
    font-weight: 700;
    background: var(--tool-accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.click-result-panel .result-stats {
    font-size: 1rem;
    color: rgba(51, 65, 85, 0.85);
    line-height: 1.8;
}

.result-record {
    color: #16a34a;
    font-weight: 700;
    margin-top: 12px;
}

.click-result-panel .primary {
    align-self: center;
    min-width: 160px;
}

@media (max-width: 768px) {
    .click-area {
        min-height: 260px;
    }

    .click-stats-grid {
        grid-template-columns: repeat(2, minmax(140px, 1fr));
    }
}

@media (max-width: 480px) {
    .click-stats-grid {
        grid-template-columns: 1fr;
    }
}

.fake-main {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.fake-guide .guide-list {
    margin: 0;
    padding-left: 20px;
    line-height: 1.9;
    color: var(--tool-text-secondary);
}

.fake-controls-panel {
    margin-bottom: var(--tool-gap-md);
}

.fake-controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--tool-gap-md);
    margin-bottom: var(--tool-gap-md);
}

.fake-controls-compact {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.control-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--tool-gap-md);
    align-items: flex-end;
}

.control-item {
    flex: 1;
    min-width: 120px;
}

.control-item .control-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--tool-text-secondary);
    margin-bottom: 6px;
}

.control-item .control-select {
    width: 100%;
    padding: 10px 14px;
    font-size: 0.95rem;
    border: 1px solid var(--tool-border);
    border-radius: var(--tool-radius-sm);
    background: var(--tool-surface);
    color: var(--tool-text-primary);
    transition: all 0.2s ease;
}

.control-item .control-select:hover {
    border-color: var(--tool-accent-border);
}

.control-item .control-select:focus {
    outline: none;
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 3px var(--tool-accent-surface);
}

.fake-stats {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.9rem;
    color: var(--tool-text-secondary);
    padding: 10px 14px;
    background: var(--tool-accent-surface);
    border-radius: var(--tool-radius-sm);
    border: 1px solid var(--tool-accent-border);
}

.fake-stats span {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2px 0;
}

.fake-stats strong {
    color: var(--tool-accent);
    font-weight: 600;
    font-size: 1rem;
}

.fake-hint-text {
    text-align: center;
    font-size: 0.85rem;
    color: var(--tool-text-tertiary);
    padding: 8px 0;
    margin-top: 4px;
}

.fake-action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--tool-gap-sm);
    justify-content: center;
}

.fake-action-buttons .accent,
.fake-action-buttons .secondary {
    min-width: 100px;
    padding: 10px 20px;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .fake-controls-grid {
        grid-template-columns: 1fr;
    }
    
    .control-row {
        flex-direction: column;
    }
    
    .control-item {
        min-width: 100%;
    }
    
    .fake-action-buttons {
        flex-direction: column;
    }
    
    .fake-action-buttons .accent,
    .fake-action-buttons .secondary {
        width: 100%;
    }
}

.fakework-stage {
    position: relative;
    width: 100%;
    min-height: 540px;
    margin-top: var(--tool-gap-lg);
    border-radius: var(--tool-radius-xl);
    border: 1px solid rgba(34, 197, 94, 0.25);
    background: rgba(2, 6, 23, 0.92);
    overflow: hidden;
    box-shadow: 0 30px 70px rgba(15, 118, 110, 0.25);
}

.fakework-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(2, 6, 23, 0.92);
    border-bottom: 1px solid rgba(34, 197, 94, 0.45);
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    z-index: 10;
    backdrop-filter: blur(12px);
    transition: transform 0.3s ease;
}

.fakework-header.hidden {
    transform: translateY(-100%);
}

.fakework-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.05rem;
    color: rgba(34, 197, 94, 0.95);
    text-shadow: 0 0 12px rgba(34, 197, 94, 0.45);
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
}

.fakework-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.fakework-btn,
.fakework-theme-select {
    border-radius: 8px;
    border: 1px solid rgba(34, 197, 94, 0.6);
    background: rgba(2, 6, 23, 0.65);
    color: rgba(167, 243, 208, 0.95);
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    padding: 8px 16px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.fakework-btn:hover,
.fakework-theme-select:hover {
    transform: translateY(-2px);
    background: rgba(34, 197, 94, 0.18);
    box-shadow: 0 12px 24px rgba(34, 197, 94, 0.35);
}

.fakework-theme-select option {
    background: #020617;
    color: rgba(167, 243, 208, 0.92);
}

.fakework-terminal {
    position: relative;
    padding: 90px 24px 24px;
    min-height: 540px;
    overflow-y: auto;
    line-height: 1.7;
    font-size: 0.95rem;
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    color: rgba(226, 232, 240, 0.9);
}

.fakework-terminal.fullscreen {
    padding-top: 24px;
}

.fakework-terminal::-webkit-scrollbar {
    width: 10px;
}

.fakework-terminal::-webkit-scrollbar-track {
    background: rgba(15, 23, 42, 0.9);
}

.fakework-terminal::-webkit-scrollbar-thumb {
    background: rgba(34, 197, 94, 0.75);
    border-radius: 6px;
}

.fakework-line {
    margin-bottom: 6px;
    animation: fake-line-fade 0.28s ease;
}

.fakework-prompt {
    color: rgba(34, 197, 94, 0.95);
    font-weight: 600;
}

.fakework-command {
    color: rgba(167, 243, 208, 0.95);
}

.fakework-output {
    display: block;
}

.fakework-hint {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(15, 118, 110, 0.18);
    border: 1px solid rgba(34, 197, 94, 0.45);
    border-radius: 12px;
    padding: 10px 18px;
    font-size: 0.85rem;
    color: rgba(167, 243, 208, 0.85);
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    text-align: center;
    backdrop-filter: blur(8px);
    transition: opacity 0.3s ease;
    z-index: 5;
}

.fakework-hint.hidden {
    opacity: 0;
    pointer-events: none;
}

@keyframes fake-line-fade {
    from {
        opacity: 0;
        transform: translateX(-6px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fakework-output.success {
    color: rgba(52, 211, 153, 0.95);
}

.fakework-output.warning {
    color: rgba(250, 204, 21, 0.95);
}

.fakework-output.error {
    color: rgba(248, 113, 113, 0.95);
}

.fakework-output.info {
    color: rgba(56, 189, 248, 0.95);
}

@keyframes fake-hint-pulse {
    0%,
    100% {
        opacity: 0.7;
        transform: translateX(-50%) scale(1);
    }

    50% {
        opacity: 1;
        transform: translateX(-50%) scale(1.05);
    }
}

.fakework-keyboard-effect {
    position: fixed;
    bottom: 32px;
    right: 32px;
    font-size: 2.8rem;
    color: rgba(34, 197, 94, 0.9);
    pointer-events: none;
    animation: fake-key-pop 0.5s ease;
    z-index: 9999;
}

@keyframes fake-key-pop {
    0% {
        opacity: 0;
        transform: scale(0.5) rotate(-10deg);
    }

    50% {
        opacity: 1;
        transform: scale(1.2) rotate(6deg);
    }

    100% {
        opacity: 0;
        transform: scale(0.8) rotate(0deg);
    }
}

.theme-matrix {
    background: #000;
    color: #0f0;
}

.theme-hacker {
    background: #0d1117;
    color: #00ff00;
}

.theme-terminal {
    background: #1e1e1e;
    color: #d4d4d4;
}

.theme-terminal .fakework-header {
    border-bottom-color: rgba(86, 156, 214, 0.6);
}

.theme-terminal .fakework-prompt {
    color: #569cd6;
}

.theme-terminal .fakework-command {
    color: #dcdcaa;
}

.theme-cyberpunk {
    background: #0a0e27;
    color: #ff2a6d;
}

.theme-cyberpunk .fakework-header {
    border-bottom-color: rgba(255, 42, 109, 0.55);
}

.theme-cyberpunk .fakework-prompt {
    color: #ff2a6d;
}

.theme-cyberpunk .fakework-command {
    color: #05d9e8;
}

@media (max-width: 1024px) {
    .fakework-stage {
        min-height: 480px;
    }

    .fakework-terminal {
        min-height: 480px;
    }
}

@media (max-width: 768px) {
    .fakework-stage {
        margin-top: var(--tool-gap-md);
        min-height: 400px;
    }

    .fakework-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 12px 16px;
    }

    .fakework-controls {
        width: 100%;
        justify-content: flex-start;
        gap: 8px;
    }

    .fakework-btn,
    .fakework-theme-select {
        font-size: 0.85rem;
        padding: 6px 12px;
    }

    .fakework-terminal {
        padding: 100px 16px 60px;
        font-size: 0.85rem;
    }

    .fakework-keyboard-effect {
        font-size: 2rem;
        bottom: 20px;
        right: 20px;
    }

    .fakework-hint {
        left: 16px;
        right: 16px;
        transform: none;
        font-size: 0.8rem;
        padding: 8px 14px;
    }
}

.theme-matrix .fakework-stage {
    background: radial-gradient(circle at 10% 10%, rgba(15, 255, 15, 0.18), transparent 55%), #000;
}

.theme-matrix .fakework-header,
.theme-matrix .fakework-btn,
.theme-matrix .fakework-theme-select {
    border-color: rgba(15, 255, 15, 0.6);
    color: rgba(183, 255, 183, 0.95);
}

.theme-matrix .fakework-prompt {
    color: rgba(15, 255, 15, 0.95);
}

.theme-matrix .fakework-command {
    color: rgba(183, 255, 183, 0.95);
}

.theme-hacker .fakework-stage {
    background: radial-gradient(circle at 20% 10%, rgba(16, 185, 129, 0.22), transparent 60%), #0d1117;
}

.theme-hacker .fakework-header {
    border-bottom-color: rgba(16, 185, 129, 0.55);
}

.theme-hacker .prompt {
    color: rgba(16, 185, 129, 0.95);
}

.theme-hacker .command {
    color: rgba(134, 239, 172, 0.9);
}

.theme-hacker .btn,
.theme-hacker .theme-select {
    border-color: rgba(16, 185, 129, 0.6);
    color: rgba(167, 243, 208, 0.95);
}

.theme-terminal .fakework-stage {
    background: radial-gradient(circle at 15% 15%, rgba(86, 156, 214, 0.18), transparent 55%), #1e1e1e;
}

.theme-terminal .fakework-btn,
.theme-terminal .fakework-theme-select {
    border-color: rgba(86, 156, 214, 0.6);
    color: rgba(184, 215, 255, 0.95);
}

.theme-cyberpunk .fakework-stage {
    background: radial-gradient(circle at 15% 15%, rgba(255, 42, 109, 0.2), transparent 60%), #0a0e27;
}

.theme-cyberpunk .fakework-btn,
.theme-cyberpunk .fakework-theme-select {
    border-color: rgba(255, 42, 109, 0.6);
    color: rgba(255, 215, 236, 0.95);
}

.theme-cyberpunk .fakework-hint {
    border-color: rgba(255, 42, 109, 0.45);
    color: rgba(255, 218, 238, 0.9);
}

body.tool-page[data-tool="crypto-tools"] {
    --tool-accent: #8b5cf6;
    --tool-accent-strong: #7c3aed;
    --tool-accent-gradient: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 45%, #7c3aed 100%);
    --tool-accent-surface: rgba(139, 92, 246, 0.1);
    --tool-accent-border: rgba(139, 92, 246, 0.3);
    background: radial-gradient(circle at 15% 15%, rgba(139, 92, 246, 0.22), transparent 55%),
        radial-gradient(circle at 70% 5%, rgba(124, 58, 237, 0.18), transparent 50%),
        linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
}

.crypto-main {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.crypto-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(480px, 1fr));
    gap: var(--tool-gap-lg);
}

.crypto-tool-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.crypto-tool-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--tool-shadow-lg);
}

.crypto-tool-card .panel-body {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.message {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    padding: 12px 20px;
    border-radius: var(--tool-radius-md);
    color: white;
    font-weight: 600;
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s ease;
    max-width: 400px;
    box-shadow: var(--tool-shadow-md);
    height: auto;
    min-height: auto;
    word-wrap: break-word;
    white-space: normal;
    line-height: 1.5;
}

.message.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.message.success {
    background: linear-gradient(135deg, #10b981, #059669);
}

.message.warning {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.message.error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.message.info {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

@media (max-width: 1024px) {
    .crypto-tools-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .crypto-tools-grid {
        gap: var(--tool-gap-md);
    }

    .message {
        top: 16px;
        left: 50%;
        right: auto;
        transform: translateX(-50%) translateY(-100%);
        max-width: calc(100% - 32px);
        height: auto;
        min-height: auto;
        word-wrap: break-word;
        white-space: normal;
        line-height: 1.5;
    }
    
    .message.show {
        transform: translateX(-50%) translateY(0);
    }
}

body.tool-page[data-tool="editor-toolbox"] {
    --tool-accent: #667eea;
    --tool-accent-strong: #764ba2;
    --tool-accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --tool-accent-surface: rgba(102, 126, 234, 0.1);
    --tool-accent-border: rgba(102, 126, 234, 0.3);
    background: radial-gradient(circle at 15% 15%, rgba(102, 126, 234, 0.22), transparent 55%),
        radial-gradient(circle at 70% 5%, rgba(118, 75, 162, 0.18), transparent 50%),
        linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
}

.editor-main {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-lg);
}

.editor-toolbar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--tool-gap-md);
}

.editor-tool-group {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.editor-tool-group:hover {
    transform: translateY(-2px);
    box-shadow: var(--tool-shadow-lg);
}

.editor-container-panel {
    margin-top: var(--tool-gap-md);
}

.editor-container-panel .panel-body {
    padding: 0;
}

#editor {
    min-height: 600px;
    /* border-radius: var(--tool-radius-md); */
    overflow: hidden;
}

.editor-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--tool-gap-md);
}

/* Quill�༭���Զ�����ʽ */
.ql-container {
    font-size: 16px;
    font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
    min-height: 600px;
    border: none !important;
    background: var(--tool-bg);
    color: var(--tool-text);
}

.ql-editor {
    min-height: 600px;
    padding: 20px;
    border: 1px solid var(--tool-border);
    background: var(--tool-bg);
    color: var(--tool-text);
}

.ql-editor:focus {
    outline: none;
    border-color: var(--tool-accent);
}

.ql-toolbar {
    background: var(--tool-surface);
    border: none !important;
    border-bottom: 1px solid var(--tool-border) !important;
    border-top-left-radius: var(--tool-radius-md) !important;
    border-top-right-radius: var(--tool-radius-md) !important;
    padding: 12px !important;
}

.ql-toolbar .ql-stroke {
    stroke: var(--tool-text-secondary);
}

.ql-toolbar .ql-fill {
    fill: var(--tool-text-secondary);
}

.ql-toolbar button:hover .ql-stroke,
.ql-toolbar button.ql-active .ql-stroke {
    stroke: var(--tool-accent);
}

.ql-toolbar button:hover .ql-fill,
.ql-toolbar button.ql-active .ql-fill {
    fill: var(--tool-accent);
}

@media (max-width: 1024px) {
    .editor-toolbar-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .editor-toolbar-grid {
        grid-template-columns: 1fr;
    }

    .editor-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    #editor,
    .ql-container,
    .ql-editor {
        min-height: 400px;
    }

    .video-grid,
    .videoGrid {
        grid-template-columns: 1fr;
    }

    .video-card video,
    .videoCard video {
        aspect-ratio: 16/9;
    }

    .checkbox-row {
        padding: 12px;
        font-size: 0.9rem;
    }
}

/* Video Compressor ר����ʽ�Ż� */
.video-compressor-main .upload-area {
    margin-bottom: 0;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.video-compressor-main .upload-icon {
    font-size: 4rem;
    margin-bottom: 0;
}

.video-compressor-main .upload-title {
    font-size: 1.2rem;
    margin-bottom: 0;
}

.video-compressor-main .upload-desc {
    font-size: 0.9rem;
    margin-top: 0;
}

.video-compressor-main .control-grid {
    margin-top: var(--tool-gap-md);
}

.video-compressor-main #meta {
    margin-bottom: var(--tool-gap-md);
}

.video-compressor-main .upload-input {
    display: none;
}

.video-compressor-main .download-section {
    margin-top: var(--tool-gap-md);
    display: flex;
    justify-content: center;
}

/* Drawing Board ��ʽ�Ż� */
.drawing-intro {
    margin-bottom: var(--tool-gap-md);
}

.drawing-workspace {
    margin-top: var(--tool-gap-md);
}

/* Fake Work ��ʽ�Ż� */
.fake-main {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-lg);
}

.fake-guide {
    margin-bottom: var(--tool-gap-md);
}

.fakework-stage {
    margin-top: var(--tool-gap-md);
    min-height: 540px;
}

/* Drawing Board ����ʽ */
.drawing-main {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
}

.drawing-controls-panel {
    margin-bottom: var(--tool-gap-md);
}

.drawing-toolbar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--tool-gap-lg);
    padding: var(--tool-gap-md);
}

.tool-group {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-sm);
}

.tool-group-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--tool-text-secondary);
    margin-bottom: var(--tool-gap-sm);
}

.tool-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--tool-gap-sm);
}

.tool-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 16px;
    border: 1px solid var(--tool-border);
    border-radius: var(--tool-radius-sm);
    background: var(--tool-surface);
    color: var(--tool-text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 80px;
    font-size: 0.85rem;
}

.tool-btn:hover {
    transform: translateY(-2px);
    border-color: var(--tool-accent-border);
    background: var(--tool-accent-surface);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.tool-btn.active {
    background: var(--tool-accent-gradient);
    border-color: var(--tool-accent);
    color: white;
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.3);
}

.tool-icon {
    font-size: 1.5rem;
}

.tool-label {
    font-size: 0.85rem;
    font-weight: 500;
}

.color-selector {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-sm);
}

.color-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
}

.color-item {
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--tool-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.color-item:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.color-item.active {
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3);
}

.color-item.active::after {
    content: '?';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: 700;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    font-size: 1.2rem;
}

.color-picker {
    width: 100%;
    height: 40px;
    border: 1px solid var(--tool-border);
    border-radius: var(--tool-radius-sm);
    cursor: pointer;
    background: transparent;
}

.brush-size-control {
    display: flex;
    align-items: center;
    gap: var(--tool-gap-sm);
}

.brush-slider {
    flex: 1;
    height: 6px;
    border-radius: 999px;
    background: var(--tool-border);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.brush-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--tool-accent-gradient);
    box-shadow: 0 4px 8px rgba(99, 102, 241, 0.3);
    cursor: pointer;
    border: 2px solid white;
}

.brush-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--tool-accent-gradient);
    box-shadow: 0 4px 8px rgba(99, 102, 241, 0.3);
    cursor: pointer;
    border: 2px solid white;
}

.size-display {
    font-weight: 600;
    color: var(--tool-accent);
    min-width: 30px;
    text-align: center;
}

.size-unit {
    color: var(--tool-text-secondary);
    font-size: 0.9rem;
}

.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--tool-gap-sm);
}

.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--tool-border);
    border-radius: var(--tool-radius-sm);
    background: var(--tool-surface);
    color: var(--tool-text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1.2rem;
}

.icon-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    border-color: var(--tool-accent-border);
    background: var(--tool-accent-surface);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.icon-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.icon-btn.active {
    background: var(--tool-accent-surface);
    border-color: var(--tool-accent);
    color: var(--tool-accent);
}

.icon-btn.accent {
    background: var(--tool-accent-gradient);
    border-color: var(--tool-accent);
    color: white;
}

.icon-btn.accent:hover {
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4);
}

.drawing-canvas-panel {
    margin-bottom: var(--tool-gap-md);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--tool-gap-sm);
    flex-wrap: wrap;
}

/* ��ͼ���ͷ����ʽ */
.drawing-panel-header {
    display: flex;
    flex-direction: column;
    gap: var(--tool-gap-md);
    padding-bottom: var(--tool-gap-md);
    border-bottom: 1px solid var(--tool-border);
}

/* ȫ����ʽ */
.drawing-canvas-panel:fullscreen {
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--tool-background);
    padding: var(--tool-gap-lg);
    margin: 0;
    border-radius: 0;
}

.drawing-canvas-panel:-webkit-full-screen {
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--tool-background);
    padding: var(--tool-gap-lg);
    margin: 0;
    border-radius: 0;
}

.drawing-canvas-panel:-moz-full-screen {
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--tool-background);
    padding: var(--tool-gap-lg);
    margin: 0;
    border-radius: 0;
}

.drawing-canvas-panel:-ms-fullscreen {
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--tool-background);
    padding: var(--tool-gap-lg);
    margin: 0;
    border-radius: 0;
}

.drawing-canvas-panel:fullscreen .canvas-wrapper,
.drawing-canvas-panel:-webkit-full-screen .canvas-wrapper,
.drawing-canvas-panel:-moz-full-screen .canvas-wrapper,
.drawing-canvas-panel:-ms-fullscreen .canvas-wrapper {
    flex: 1;
    min-height: 0;
    width: 100%;
    height: 100%;
    padding: var(--tool-gap-md);
}

.drawing-canvas-panel:fullscreen #drawingCanvas,
.drawing-canvas-panel:-webkit-full-screen #drawingCanvas,
.drawing-canvas-panel:-moz-full-screen #drawingCanvas,
.drawing-canvas-panel:-ms-fullscreen #drawingCanvas {
    max-width: 100% !important;
    max-height: 100% !important;
    width: 100% !important;
    height: 100% !important;
}

.panel-header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--tool-gap-md);
    flex-wrap: wrap;
}

.panel-header-left {
    display: flex;
    align-items: center;
    gap: var(--tool-gap-sm);
}

.canvas-info {
    display: flex;
    align-items: center;
    gap: var(--tool-gap-md);
    font-size: 0.85rem;
    color: var(--tool-text-secondary);
    flex-wrap: wrap;
}

.canvas-wrapper {
    position: relative;
    width: 100%;
    background: #f8fafc;
    border: 1px solid var(--tool-border);
    border-radius: var(--tool-radius-md);
    overflow: auto;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 600px;
    padding: 16px;
    box-sizing: border-box;
    background-image: 
        linear-gradient(rgba(0, 0, 0, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.05) 1px, transparent 1px);
    background-size: 20px 20px;
    background-position: 0 0, 0 0;
}

.canvas-wrapper.grid-visible {
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.2) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.2) 1px, transparent 1px);
    background-size: 20px 20px;
}

/* ��ͼ��������ʽ���� panel-header �У� */
.drawing-toolbar {
    width: 100%;
    padding: var(--tool-gap-sm) 0;
    background: var(--tool-accent-surface);
    border-radius: var(--tool-radius-sm);
    border: 1px solid var(--tool-accent-border);
}

.toolbar-row {
    display: flex;
    align-items: flex-start;
    gap: var(--tool-gap-md);
    flex-wrap: nowrap;
    padding: 0 var(--tool-gap-md);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.toolbar-row::-webkit-scrollbar {
    display: none;
}

.toolbar-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-shrink: 0;
}

/* ������ - �̶����� */
.toolbar-group:first-child {
    min-width: 220px;
    max-width: 220px;
    flex: 0 0 220px;
}

/* ��ɫ�� - ���ӿ��� */
.toolbar-group:nth-child(3) {
    min-width: 380px;
    max-width: 380px;
    flex: 0 0 380px;
}

/* ���ʴ�С�� - ��С���� */
.toolbar-group:nth-child(5) {
    min-width: 130px;
    max-width: 130px;
    flex: 0 0 130px;
}

/* ������ - �̶����� */
.toolbar-group:last-child {
    min-width: 240px;
    max-width: 240px;
    flex: 0 0 240px;
}

.toolbar-label-small {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--tool-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.toolbar-buttons {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: nowrap;
    width: 100%;
    justify-content: flex-start;
}

.toolbar-divider-vertical {
    width: 1px;
    min-height: 50px;
    background: var(--tool-border);
    margin: 0 4px;
    flex-shrink: 0;
    align-self: stretch;
}

.tool-btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--tool-border);
    border-radius: var(--tool-radius-sm);
    background: var(--tool-surface);
    color: var(--tool-text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.tool-btn-icon:hover {
    transform: translateY(-2px);
    border-color: var(--tool-accent-border);
    background: var(--tool-accent-surface);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.tool-btn-icon.active {
    background: var(--tool-accent-gradient);
    border-color: var(--tool-accent);
    color: white;
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.3);
}

.tool-btn-icon .tool-icon {
    font-size: 1.1rem;
}

.color-selector-compact {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: nowrap;
    width: 100%;
}

.color-grid-compact {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    width: 100%;
    max-width: 100%;
    align-items: center;
}

.color-grid-compact .color-picker-compact {
    order: -1;
    margin-right: 4px;
}

.color-item-compact {
    width: 22px;
    height: 22px;
    border-radius: 4px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    flex-shrink: 0;
}

.color-item-compact:hover {
    transform: scale(1.15);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.color-item-compact.active {
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3);
}

.color-item-compact.active::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    font-size: 0.75rem;
    line-height: 1;
}

.color-picker-compact {
    width: 30px;
    height: 30px;
    border: 2px solid var(--tool-border);
    border-radius: 4px;
    cursor: pointer;
    background: transparent;
    padding: 0;
    flex-shrink: 0;
    overflow: hidden;
    position: relative;
}

/* 确保颜色选择器正确显示颜色 */
.color-picker-compact::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker-compact::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

.color-picker-compact::-moz-color-swatch {
    border: none;
    border-radius: 2px;
}

/* 当颜色选择器有值时，显示边框高亮 */
.color-picker-compact:not([value=""]) {
    border-color: var(--tool-accent);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.brush-size-control-compact {
    display: flex;
    align-items: center;
    gap: 8px;
}

.toolbar-label-compact {
    font-size: 0.85rem;
    color: var(--tool-text-secondary);
    font-weight: 500;
    white-space: nowrap;
    flex-shrink: 0;
}

.brush-slider-compact {
    flex: 1;
    min-width: 60px;
    max-width: 80px;
    width: 80px;
    height: 6px;
    border-radius: 999px;
    background: var(--tool-border);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    flex-shrink: 0;
}

.brush-size-control-compact {
    display: flex;
    align-items: center;
    gap: 6px;
    width: 100%;
    justify-content: flex-start;
}

.brush-slider-compact::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--tool-accent-gradient);
    box-shadow: 0 4px 8px rgba(99, 102, 241, 0.3);
    cursor: pointer;
    border: 2px solid white;
}

.brush-slider-compact::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--tool-accent-gradient);
    box-shadow: 0 4px 8px rgba(99, 102, 241, 0.3);
    cursor: pointer;
    border: 2px solid white;
}

.size-display-compact {
    font-weight: 600;
    color: var(--tool-accent);
    min-width: 35px;
    width: 35px;
    text-align: center;
    font-size: 0.85rem;
    flex-shrink: 0;
    white-space: nowrap;
}

.icon-btn-compact {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--tool-border);
    border-radius: var(--tool-radius-sm);
    background: var(--tool-surface);
    color: var(--tool-text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1rem;
    padding: 0;
    flex-shrink: 0;
}

.icon-btn-compact:hover:not(:disabled) {
    transform: translateY(-2px);
    border-color: var(--tool-accent-border);
    background: var(--tool-accent-surface);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.icon-btn-compact:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.icon-btn-compact.active {
    background: var(--tool-accent-surface);
    border-color: var(--tool-accent);
    color: var(--tool-accent);
}

.icon-btn-compact.accent {
    background: var(--tool-accent-gradient);
    border-color: var(--tool-accent);
    color: white;
}

.icon-btn-compact.accent:hover {
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4);
}


#drawingCanvas {
    display: block;
    cursor: crosshair;
    touch-action: none;
    image-rendering: auto;
    background: #ffffff !important; /* ��������͸������ʾ���� */
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.drawing-help-panel {
    margin-top: var(--tool-gap-md);
}

.help-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--tool-gap-lg);
}

.help-section h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--tool-text-primary);
    margin-bottom: var(--tool-gap-sm);
}

.help-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.help-section li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--tool-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.help-section kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--tool-text-primary);
    background: var(--tool-surface);
    border: 1px solid var(--tool-border);
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* ��ͼ��������Ӧʽ�Ż� */
@media (max-width: 1200px) {
    .toolbar-row {
        gap: var(--tool-gap-sm);
    }

    .toolbar-group {
        min-width: 100px;
    }

    .color-grid-compact {
        max-width: 100%;
    }
    
    .brush-slider-compact {
        max-width: 100px;
    }
    
    .canvas-wrapper {
        min-height: 500px;
        padding: 12px;
    }
}

@media (max-width: 1024px) {
    .drawing-panel-header {
        gap: var(--tool-gap-sm);
    }

    .toolbar-row {
        gap: var(--tool-gap-sm);
        flex-wrap: nowrap;
        overflow-x: auto;
        padding: 0 var(--tool-gap-sm);
    }

    .toolbar-group:first-child {
        min-width: 180px;
        max-width: 180px;
    }

    .toolbar-group:nth-child(3) {
        min-width: 380px;
        max-width: 380px;
        flex: 0 0 380px;
    }

    .toolbar-group:nth-child(5) {
        min-width: 120px;
        max-width: 120px;
        flex: 0 0 120px;
    }

    .toolbar-group:last-child {
        min-width: 200px;
        max-width: 200px;
    }

    .toolbar-divider-vertical {
        display: none;
    }
    
    .canvas-wrapper {
        min-height: 500px;
        padding: 12px;
    }
}

@media (max-width: 768px) {
    .drawing-panel-header {
        padding-bottom: var(--tool-gap-sm);
    }

    .toolbar-row {
        gap: var(--tool-gap-sm);
        padding: 0 var(--tool-gap-sm);
    }

    .toolbar-group {
        min-width: 100%;
        gap: 6px;
    }

    .toolbar-label-small {
        font-size: 0.7rem;
    }

    .toolbar-buttons {
        gap: 4px;
    }

    .tool-btn-icon,
    .icon-btn-compact {
        width: 28px;
        height: 28px;
        font-size: 0.95rem;
    }

    .tool-btn-icon .tool-icon {
        font-size: 0.95rem;
    }

    .color-item-compact {
        width: 20px;
        height: 20px;
    }

    .color-grid-compact {
        gap: 3px;
    }

    .color-picker-compact {
        width: 28px;
        height: 28px;
    }

    .brush-slider-compact {
        max-width: 100px;
        min-width: 60px;
    }

    .size-display-compact {
        min-width: 32px;
        font-size: 0.8rem;
    }

    .toolbar-divider-vertical {
        display: none;
    }
    
    .canvas-wrapper {
        min-height: 400px;
        padding: 10px;
    }
    
    .help-content {
        grid-template-columns: 1fr;
    }
    
    .panel-header-top {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .canvas-info {
        width: 100%;
        justify-content: space-between;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .drawing-panel-header {
        padding-bottom: var(--tool-gap-sm);
        gap: var(--tool-gap-sm);
    }

    .toolbar-row {
        gap: var(--tool-gap-sm);
        padding: 0 var(--tool-gap-sm);
    }

    .toolbar-group {
        min-width: 100%;
        gap: 4px;
    }

    .toolbar-label-small {
        font-size: 0.65rem;
    }

    .toolbar-buttons {
        gap: 3px;
        justify-content: center;
    }

    .tool-btn-icon,
    .icon-btn-compact {
        width: 26px;
        height: 26px;
        font-size: 0.9rem;
    }

    .tool-btn-icon .tool-icon {
        font-size: 0.9rem;
    }

    .color-item-compact {
        width: 18px;
        height: 18px;
    }

    .color-grid-compact {
        gap: 2px;
        justify-content: center;
    }

    .color-picker-compact {
        width: 26px;
        height: 26px;
    }

    .brush-slider-compact {
        max-width: 80px;
        min-width: 50px;
    }

    .size-display-compact {
        min-width: 30px;
        font-size: 0.75rem;
    }

    .toolbar-divider-vertical {
        display: none;
    }
    
    .canvas-wrapper {
        min-height: 300px;
        padding: 8px;
    }

    .panel-header-top {
        gap: var(--tool-gap-sm);
    }

    .canvas-info {
        font-size: 0.75rem;
        gap: var(--tool-gap-sm);
    }
}