/* ===== 火山学专属样式 ===== */
        .volcano-hero {
            min-height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            background: linear-gradient(160deg, #1a0a0a 0%, #3e1c1c 40%, #5d2e2e 100%);
            padding-top: 72px;
        }
        .volcano-hero-canvas {
            position: absolute;
            top: 0; left: 0;
            width: 100%; height: 100%;
            z-index: 1;
        }
        .volcano-hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: white;
            max-width: 800px;
            padding: 0 var(--space-lg);
        }
        .volcano-hero-content h1 {
            font-family: var(--font-heading);
            font-size: clamp(2.5rem, 6vw, 4rem);
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: var(--space-lg);
            text-shadow: 0 2px 20px rgba(0,0,0,0.5);
        }
        .volcano-hero-content p {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: rgba(255,255,255,0.75);
            line-height: 1.8;
            max-width: 640px;
            margin: 0 auto;
        }

        /* 火山剖面图容器 */
        .volcano-section-canvas {
            width: 100%;
            height: 420px;
            background: linear-gradient(180deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            border-radius: var(--radius-xl);
            overflow: hidden;
        }

        /* 喷发类型卡片 */
        .eruption-type-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-xl);
        }
        .eruption-card {
            background: var(--color-card);
            border-radius: var(--radius-xl);
            padding: var(--space-xl);
            border: 1px solid var(--color-border-light);
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .eruption-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 4px;
            opacity: 0;
            transition: var(--transition-base);
        }
        .eruption-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .eruption-card:hover::before { opacity: 1; }
        .eruption-card:nth-child(1)::before { background: linear-gradient(90deg, #4CAF50, #8BC34A); }
        .eruption-card:nth-child(2)::before { background: linear-gradient(90deg, #FF9800, #FFC107); }
        .eruption-card:nth-child(3)::before { background: linear-gradient(90deg, #F44336, #FF5722); }
        .eruption-card:nth-child(4)::before { background: linear-gradient(90deg, #9C27B0, #E91E63); }
        .eruption-card:nth-child(5)::before { background: linear-gradient(90deg, #3F51B5, #2196F3); }
        .eruption-card:nth-child(6)::before { background: linear-gradient(90deg, #795548, #9E9E9E); }

        .eruption-icon {
            width: 56px; height: 56px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: var(--space-md);
        }
        .eruption-card:nth-child(1) .eruption-icon { background: linear-gradient(135deg, #E8F5E9, #C8E6C9); }
        .eruption-card:nth-child(2) .eruption-icon { background: linear-gradient(135deg, #FFF3E0, #FFE0B2); }
        .eruption-card:nth-child(3) .eruption-icon { background: linear-gradient(135deg, #FFEBEE, #FFCDD2); }
        .eruption-card:nth-child(4) .eruption-icon { background: linear-gradient(135deg, #F3E5F5, #E1BEE7); }
        .eruption-card:nth-child(5) .eruption-icon { background: linear-gradient(135deg, #E3F2FD, #BBDEFB); }
        .eruption-card:nth-child(6) .eruption-icon { background: linear-gradient(135deg, #ECEFF1, #CFD8DC); }

        .eruption-card h3 {
            font-family: var(--font-heading);
            font-size: 1.125rem;
            margin-bottom: var(--space-sm);
            color: var(--color-text);
        }
        .eruption-card .vei-badge {
            display: inline-block;
            padding: 2px 10px;
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: var(--space-sm);
        }
        .eruption-card:nth-child(1) .vei-badge { background: #E8F5E9; color: #2E7D32; }
        .eruption-card:nth-child(2) .vei-badge { background: #FFF3E0; color: #E65100; }
        .eruption-card:nth-child(3) .vei-badge { background: #FFEBEE; color: #C62828; }
        .eruption-card:nth-child(4) .vei-badge { background: #F3E5F5; color: #6A1B9A; }
        .eruption-card:nth-child(5) .vei-badge { background: #E3F2FD; color: #1565C0; }
        .eruption-card:nth-child(6) .vei-badge { background: #ECEFF1; color: #37474F; }

        .eruption-card p {
            color: var(--color-text-secondary);
            font-size: 0.875rem;
            line-height: 1.7;
            margin-bottom: var(--space-sm);
        }
        .eruption-card .example {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            font-style: italic;
        }

        /* VEI图表容器 */
        .vei-canvas-wrap {
            width: 100%;
            height: 380px;
            position: relative;
        }
        .vei-canvas-wrap canvas {
            width: 100%; height: 100%;
            display: block;
        }

        /* 全球火山分布 */
        .volcano-map-wrap {
            width: 100%;
            height: 420px;
            position: relative;
            background: #e8f4f8;
            border-radius: var(--radius-xl);
            overflow: hidden;
        }
        .volcano-map-wrap canvas {
            width: 100%; height: 100%;
            display: block;
        }

        /* 著名火山卡片 */
        .famous-volcano-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-xl);
        }
        .famous-volcano-card {
            background: var(--color-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: var(--transition-base);
        }
        .famous-volcano-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .famous-volcano-card .volcano-svg-thumb {
            width: 100%;
            aspect-ratio: 16/10;
            background: linear-gradient(135deg, var(--color-sky), var(--color-border-light));
        }
        .famous-volcano-card .volcano-info {
            padding: var(--space-lg);
        }
        .famous-volcano-card h4 {
            font-family: var(--font-heading);
            font-size: 1.0625rem;
            margin-bottom: var(--space-xs);
            color: var(--color-text);
        }
        .famous-volcano-card .location {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            margin-bottom: var(--space-sm);
        }
        .famous-volcano-card .stats-row {
            display: flex;
            gap: var(--space-md);
            font-size: 0.8125rem;
        }
        .famous-volcano-card .stats-row span {
            display: flex;
            align-items: center;
            gap: 4px;
            color: var(--color-text-secondary);
        }

        /* 火山灾害网格 */
        .hazard-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--space-xl);
        }
        .hazard-card {
            background: var(--color-card);
            border-radius: var(--radius-xl);
            padding: var(--space-xl);
            border: 1px solid var(--color-border-light);
            display: flex;
            gap: var(--space-lg);
            align-items: flex-start;
            transition: var(--transition-base);
        }
        .hazard-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
        }
        .hazard-icon {
            width: 56px; height: 56px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.75rem;
            flex-shrink: 0;
        }
        .hazard-card:nth-child(1) .hazard-icon { background: linear-gradient(135deg, #FFEBEE, #FFCDD2); }
        .hazard-card:nth-child(2) .hazard-icon { background: linear-gradient(135deg, #FFF3E0, #FFE0B2); }
        .hazard-card:nth-child(3) .hazard-icon { background: linear-gradient(135deg, #E3F2FD, #BBDEFB); }
        .hazard-card:nth-child(4) .hazard-icon { background: linear-gradient(135deg, #E8F5E9, #C8E6C9); }
        .hazard-card:nth-child(5) .hazard-icon { background: linear-gradient(135deg, #F3E5F5, #E1BEE7); }
        .hazard-card:nth-child(6) .hazard-icon { background: linear-gradient(135deg, #ECEFF1, #CFD8DC); }
        .hazard-content h4 {
            font-family: var(--font-heading);
            font-size: 1.0625rem;
            margin-bottom: var(--space-xs);
            color: var(--color-text);
        }
        .hazard-content p {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* 监测流程 */
        .monitor-flow {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--space-md);
            flex-wrap: wrap;
            margin-top: var(--space-xl);
        }
        .monitor-step {
            text-align: center;
            padding: var(--space-lg);
            background: var(--color-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            min-width: 140px;
            transition: var(--transition-base);
        }
        .monitor-step:hover {
            border-color: var(--color-primary);
            transform: translateY(-4px);
        }
        .monitor-step .step-num {
            width: 36px; height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto var(--space-sm);
            font-size: 0.875rem;
        }
        .monitor-step h4 {
            font-size: 0.9375rem;
            margin-bottom: var(--space-xs);
            color: var(--color-text);
        }
        .monitor-step p {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
        }
        .monitor-arrow {
            color: var(--color-text-muted);
            font-size: 1.25rem;
        }

        @media (max-width: 1023px) {
            .eruption-type-grid { grid-template-columns: repeat(2, 1fr); }
            .famous-volcano-grid { grid-template-columns: repeat(2, 1fr); }
            .hazard-grid { grid-template-columns: 1fr; }
            .volcano-section-canvas { height: 340px; }
            .volcano-map-wrap { height: 340px; }
        }
        @media (max-width: 767px) {
            .eruption-type-grid { grid-template-columns: 1fr; }
            .famous-volcano-grid { grid-template-columns: 1fr; }
            .monitor-flow { flex-direction: column; }
            .monitor-arrow { transform: rotate(90deg); }
            .volcano-section-canvas { height: 280px; }
            .volcano-map-wrap { height: 280px; }
        }