/* UI设计智慧课程展示页 */
:root {
    --sc-primary: #1a5fb4;
    --sc-primary-dark: #0d3d7a;
    --sc-accent: #e66100;
    --sc-bg: #f4f7fb;
    --sc-card: #ffffff;
    --sc-text: #1c1c1e;
    --sc-muted: #5c6370;
    --sc-border: #e2e8f0;
    --sc-shadow: 0 4px 24px rgba(26, 95, 180, 0.08);
}

* { box-sizing: border-box; }

body.sc-page {
    margin: 0;
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--sc-bg);
    color: var(--sc-text);
    line-height: 1.6;
}

.sc-topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--sc-border);
}

.sc-topbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: nowrap;
    position: relative;
}

.sc-brand {
    font-weight: 700;
    color: var(--sc-primary);
    text-decoration: none;
    flex-shrink: 0;
}

.sc-nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: 1px solid var(--sc-border);
    border-radius: 10px;
    background: #fff;
    color: var(--sc-primary);
    cursor: pointer;
    flex-shrink: 0;
}

.sc-nav-toggle:hover { background: #f0f6ff; }

.sc-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    flex: 1;
    min-width: 0;
}

.sc-nav a {
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 13px;
    color: var(--sc-muted);
    text-decoration: none;
    white-space: nowrap;
}

.sc-nav a:hover, .sc-nav a.active {
    background: rgba(26, 95, 180, 0.1);
    color: var(--sc-primary);
}

.sc-btn-topbar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--sc-primary);
    color: #fff;
    padding: 8px 14px;
    font-size: 13px;
    flex-shrink: 0;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    white-space: nowrap;
}

.sc-btn-topbar:hover {
    background: var(--sc-primary-dark);
    transform: translateY(-1px);
}

.sc-hero-banner-wrap {
    position: relative;
    background: linear-gradient(180deg, #eef4fc 0%, #f4f7fb 100%);
}

.sc-hero-banner {
    position: relative;
    width: 100%;
    max-height: 420px;
    overflow: hidden;
    line-height: 0;
}

.sc-hero-banner::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 100px;
    background: linear-gradient(to bottom, transparent, rgba(244, 247, 251, 0.92));
    pointer-events: none;
}

.sc-hero-banner-img {
    width: 100%;
    height: auto;
    min-height: 220px;
    max-height: 420px;
    object-fit: cover;
    object-position: center top;
    display: block;
}

.sc-hero-float {
    position: relative;
    margin-top: -72px;
    padding: 0 20px 28px;
    z-index: 2;
}

.sc-hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 20px;
    align-items: end;
}

@media (max-width: 900px) {
    .sc-hero-float { margin-top: -20px; }
    .sc-hero-inner { grid-template-columns: 1fr; }
    .sc-hero-banner { max-height: none; }
    .sc-hero-banner-img { max-height: none; object-fit: contain; background: #eef4fc; }
}

.sc-hero-float-left {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sc-hero-meta {
    margin: 0;
    padding: 10px 14px;
    font-size: 13px;
    color: var(--sc-text);
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(255, 255, 255, 0.9);
    border-radius: 12px;
    box-shadow: var(--sc-shadow);
    backdrop-filter: blur(10px);
    line-height: 1.5;
}

.sc-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }

.sc-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
}

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

.sc-btn-primary {
    background: linear-gradient(135deg, #1a5fb4, #3584e4);
    color: #fff;
    box-shadow: 0 4px 14px rgba(26, 95, 180, 0.35);
}

.sc-btn-glass {
    background: rgba(255, 255, 255, 0.92);
    color: var(--sc-primary-dark);
    border: 1px solid var(--sc-border);
    box-shadow: var(--sc-shadow);
}

.sc-btn-outline { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.6); }

.sc-hero-card {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    padding: 18px 18px 14px;
    box-shadow: 0 8px 32px rgba(26, 95, 180, 0.12);
    backdrop-filter: blur(12px);
}

.sc-hero-card h3 {
    margin: 0 0 12px;
    font-size: 15px;
    color: var(--sc-primary-dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.sc-hero-card h3 i { color: var(--sc-primary); }

.sc-kpi-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }

.sc-kpi {
    background: linear-gradient(135deg, #f0f6ff 0%, #e8f1fc 100%);
    border: 1px solid #dbeafe;
    border-radius: 10px;
    padding: 10px 8px;
    text-align: center;
}

.sc-kpi strong {
    display: block;
    font-size: 1.25rem;
    color: var(--sc-primary-dark);
}

.sc-kpi span { font-size: 11px; color: var(--sc-muted); }

.sc-hero-runtime-note {
    margin: 10px 0 0;
    font-size: 11px;
    color: var(--sc-muted);
    line-height: 1.45;
}

.sc-main { max-width: 1200px; margin: 0 auto; padding: 24px 20px 64px; }

.sc-stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin: 8px 0 32px;
    position: relative;
    z-index: 2;
}

.sc-stat-card {
    background: var(--sc-card);
    border-radius: 12px;
    padding: 18px;
    box-shadow: var(--sc-shadow);
    border: 1px solid var(--sc-border);
}

.sc-stat-card .label { font-size: 12px; color: var(--sc-muted); }
.sc-stat-card .value { font-size: 1.75rem; font-weight: 700; color: var(--sc-primary); margin: 4px 0; }

.sc-section {
    background: var(--sc-card);
    border-radius: 16px;
    padding: 28px;
    margin-bottom: 24px;
    box-shadow: var(--sc-shadow);
    border: 1px solid var(--sc-border);
}

.sc-section h2 { margin: 0 0 8px; font-size: 1.35rem; color: var(--sc-primary-dark); }
.sc-section .sc-lead { color: var(--sc-muted); font-size: 14px; margin: 0 0 20px; }

.sc-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 768px) { .sc-grid-2 { grid-template-columns: 1fr; } }

.sc-info-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.sc-info-table th, .sc-info-table td { padding: 10px 12px; border-bottom: 1px solid var(--sc-border); text-align: left; }
.sc-info-table th { width: 120px; color: var(--sc-muted); font-weight: 500; }

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

.sc-team-card { border: 1px solid var(--sc-border); border-radius: 12px; padding: 16px; text-align: center; }

.sc-team-card img {
    width: 88px; height: 88px; border-radius: 50%; object-fit: cover;
    background: #eef2f7; margin-bottom: 10px;
}

.sc-team-card .avatar-ph {
    width: 88px; height: 88px; border-radius: 50%;
    background: linear-gradient(135deg, #cbd5e1, #94a3b8);
    color: #fff; display: flex; align-items: center; justify-content: center;
    font-size: 28px; font-weight: 700; margin: 0 auto 10px;
}

.sc-goal-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 768px) { .sc-goal-cols { grid-template-columns: 1fr; } }

.sc-goal-box { border-radius: 12px; padding: 16px; border: 1px solid var(--sc-border); }
.sc-goal-box h3 { margin: 0 0 10px; font-size: 15px; }
.sc-goal-box.quality { border-top: 3px solid #813d9c; }
.sc-goal-box.ability { border-top: 3px solid var(--sc-accent); }
.sc-goal-box.knowledge { border-top: 3px solid var(--sc-primary); }
.sc-goal-box ul { margin: 0; padding-left: 18px; font-size: 13px; }

.sc-graph-wrap {
    border: 1px solid var(--sc-border);
    border-radius: 12px; padding: 16px; background: #fafbfc;
}

.sc-kg-lead { font-size: 12px; color: var(--sc-muted); margin: 0 0 14px; }

.sc-kg-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 12px;
}

.sc-kg-chapter {
    background: var(--sc-card);
    border: 1px solid var(--sc-border);
    border-radius: 12px;
    overflow: hidden;
}

.sc-kg-summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    border-left: 4px solid var(--sc-primary);
    font-weight: 600;
    font-size: 14px;
}

.sc-kg-summary::-webkit-details-marker { display: none; }

.sc-kg-dot {
    width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0;
}

.sc-kg-name { flex: 1; min-width: 0; }

.sc-kg-count {
    font-size: 11px; font-weight: 500; color: var(--sc-muted);
    background: #f1f5f9; padding: 2px 8px; border-radius: 999px;
}

.sc-kg-tags {
    display: flex; flex-wrap: wrap; gap: 8px;
    padding: 0 16px 16px;
}

.sc-kg-tag {
    display: inline-block;
    max-width: 100%;
    padding: 6px 10px;
    border-radius: 8px;
    border: 1px solid;
    background: #fff;
    font-size: 12px;
    line-height: 1.4;
    word-break: break-word;
}

.sc-kg-empty { font-size: 12px; color: var(--sc-muted); }

.sc-kg-toolbar {
    display: flex; flex-wrap: wrap; align-items: center; gap: 12px;
    margin-bottom: 12px;
}

.sc-kg-toggle {
    display: inline-flex; border: 1px solid var(--sc-border);
    border-radius: 999px; overflow: hidden; background: #fff;
}

.sc-kg-mode {
    border: none; background: transparent; padding: 8px 14px;
    font-size: 13px; cursor: pointer; color: var(--sc-muted);
}

.sc-kg-mode.active {
    background: var(--sc-primary); color: #fff;
}

.sc-kg-filter {
    padding: 7px 10px; border-radius: 8px;
    border: 1px solid var(--sc-border); font-size: 13px;
    min-width: 180px;
}

.sc-kg-filter:disabled { opacity: 0.5; }

.sc-kg-stats {
    font-size: 12px; color: var(--sc-muted); margin-left: auto;
}

.sc-kg-legend {
    display: flex; flex-wrap: wrap; gap: 14px;
    font-size: 11px; color: var(--sc-muted); margin-bottom: 12px;
}

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

.sc-kg-line {
    display: inline-block; width: 28px; height: 0; border-top: 2px solid #94a3b8;
}

.sc-kg-line.contains { border-top-style: dashed; border-color: #cbd5e1; }
.sc-kg-line.sequence { border-color: #93c5fd; }
.sc-kg-line.related { border-top-style: dashed; border-color: #f59e0b; }
.sc-kg-line.prerequisite { border-color: #a78bfa; border-top-width: 2px; }

.sc-kg-network-wrap {
    overflow: auto; border: 1px solid var(--sc-border);
    border-radius: 12px; background: #fff;
}

.sc-kg-network { width: 100%; min-height: 520px; display: block; }

.sc-kg-node circle { cursor: default; }
.sc-kg-node text { pointer-events: none; }

.sc-problem-layers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
@media (max-width: 900px) { .sc-problem-layers { grid-template-columns: 1fr; } }

.sc-problem-layer { border-radius: 12px; padding: 14px; border: 1px solid var(--sc-border); }
.sc-problem-layer.l1 { background: #fff4e6; }
.sc-problem-layer.l2 { background: #e8f4fd; }
.sc-problem-layer.l3 { background: #edf7f1; }
.sc-problem-layer h4 { margin: 0 0 10px; font-size: 14px; }
.sc-problem-layer li { font-size: 13px; margin-bottom: 8px; }

.sc-chart-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 768px) { .sc-chart-row { grid-template-columns: 1fr; } }
.sc-chart-box { position: relative; height: 280px; }

.sc-tag { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 11px; margin-right: 4px; }
.sc-tag.ok { background: #d3f9d8; color: #137333; }
.sc-tag.warn { background: #ffec99; color: #e67700; }

.sc-chapter-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }

.sc-chapter-item {
    border: 1px solid var(--sc-border); border-radius: 10px;
    padding: 14px; font-size: 13px;
}

.sc-entry-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }

.sc-entry-card {
    display: block; padding: 20px; border-radius: 12px;
    border: 1px solid var(--sc-border); text-decoration: none; color: inherit;
}

.sc-entry-card:hover { border-color: var(--sc-primary); box-shadow: var(--sc-shadow); }
.sc-entry-card i { font-size: 24px; color: var(--sc-primary); margin-bottom: 8px; display: block; }
.sc-entry-card h4 { margin: 0 0 6px; }
.sc-entry-card p { margin: 0; font-size: 13px; color: var(--sc-muted); }

.sc-showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 14px;
}

.sc-showcase-card {
    display: flex;
    gap: 14px;
    padding: 18px;
    border-radius: 14px;
    border: 1px solid var(--sc-border);
    background: linear-gradient(135deg, #fff 0%, #f8fbff 100%);
    text-decoration: none;
    color: inherit;
    transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}

.sc-showcase-card:hover {
    border-color: var(--sc-primary);
    box-shadow: var(--sc-shadow);
    transform: translateY(-2px);
}

.sc-showcase-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, #1a5fb4, #3584e4);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.sc-showcase-body h4 { margin: 0 0 6px; font-size: 15px; color: var(--sc-primary-dark); }
.sc-showcase-body p { margin: 0 0 8px; font-size: 13px; color: var(--sc-muted); line-height: 1.45; }

.sc-showcase-link {
    font-size: 12px;
    color: var(--sc-primary);
    font-weight: 600;
}

.sc-award-banner {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    padding: 16px 18px;
    margin-bottom: 16px;
    border-radius: 14px;
    background: linear-gradient(135deg, #fff8e6 0%, #fff4e6 100%);
    border: 1px solid #fde68a;
}

.sc-award-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: linear-gradient(135deg, #e67700, #f59e0b);
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    white-space: nowrap;
}

.sc-award-text { display: flex; flex-direction: column; gap: 4px; }
.sc-award-text strong { font-size: 15px; color: #92400e; }
.sc-award-text span { font-size: 13px; color: #78350f; }

.sc-award-table-wrap { overflow-x: auto; }

.sc-award-table th { white-space: nowrap; }
.sc-award-table td strong { color: var(--sc-primary-dark); }

.sc-work-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--sc-primary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
}

.sc-work-link:hover { text-decoration: underline; }

.sc-task-count {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: var(--sc-primary);
    background: #e8f1fc;
    padding: 2px 8px;
    border-radius: 999px;
    margin-left: 6px;
    vertical-align: middle;
}

.sc-task-list {
    margin: 8px 0 0;
    padding-left: 18px;
    font-size: 12px;
    color: var(--sc-muted);
    line-height: 1.55;
}

.sc-task-category { grid-column: span 1; }

.sc-tools-highlight {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 14px 16px;
    margin-bottom: 20px;
    border-radius: 12px;
    background: linear-gradient(135deg, #eff6ff 0%, #f0fdf4 100%);
    border: 1px solid #bfdbfe;
    color: #1e3a5f;
    font-size: 14px;
    line-height: 1.55;
}

.sc-tools-highlight i {
    color: #e67700;
    margin-top: 3px;
    flex-shrink: 0;
}

.sc-tools-highlight p { margin: 0; }

.sc-tools-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sc-tool-card {
    border: 1px solid var(--sc-border);
    border-radius: 16px;
    overflow: hidden;
    background: #fff;
}

.sc-tool-card.accent-blockly { border-top: 4px solid #0d9488; }
.sc-tool-card.accent-analyzer { border-top: 4px solid #7c3aed; }

.sc-tool-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px 16px;
    padding: 20px 22px 8px;
}

.sc-tool-title-row {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    min-width: 0;
    flex: 1;
}

.sc-tool-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    flex-shrink: 0;
}

.accent-blockly .sc-tool-icon { background: linear-gradient(135deg, #0d9488, #14b8a6); }
.accent-analyzer .sc-tool-icon { background: linear-gradient(135deg, #7c3aed, #a78bfa); }

.sc-tool-title-row h3 {
    margin: 0 0 4px;
    font-size: 1.15rem;
    color: var(--sc-primary-dark);
}

.sc-tool-subtitle {
    margin: 0;
    font-size: 13px;
    color: var(--sc-muted);
    line-height: 1.4;
}

.sc-tool-open {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 10px;
    background: var(--sc-primary);
    color: #fff !important;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}

.sc-tool-open:hover { opacity: 0.92; }

.sc-tool-body { padding: 8px 22px 22px; }

.sc-tool-tagline {
    margin: 0 0 10px;
    font-size: 14px;
    font-weight: 600;
    color: #334155;
}

.sc-tool-summary {
    margin: 0 0 12px;
    font-size: 14px;
    color: #475569;
    line-height: 1.65;
}

.sc-tool-features {
    margin: 0 0 16px;
    padding-left: 18px;
    font-size: 13px;
    color: #334155;
    line-height: 1.55;
}

.sc-tool-features li { margin-bottom: 4px; }

.sc-tool-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 12px;
}

.sc-tool-shot {
    margin: 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--sc-border);
    background: #0f172a;
}

.sc-tool-shot img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 320px;
    object-fit: cover;
    object-position: top center;
}

.sc-tool-shot figcaption {
    padding: 8px 12px;
    font-size: 12px;
    color: #64748b;
    background: #f8fafc;
    border-top: 1px solid var(--sc-border);
}

.sc-footer { text-align: center; padding: 24px; color: var(--sc-muted); font-size: 13px; }

.sc-smart-banner {
    margin: 20px 0; padding: 20px 24px; border-radius: 12px;
    background: linear-gradient(135deg, #1a5fb4 0%, #3584e4 100%);
    color: #fff; display: flex; align-items: center;
    justify-content: space-between; flex-wrap: wrap; gap: 16px;
}

.sc-smart-banner h3 { margin: 0 0 6px; }
.sc-smart-banner p { margin: 0; opacity: 0.9; font-size: 14px; }

/* —— 窄屏：顶部折叠导航 + 版面响应式（不改变桌面版式） —— */
@media (max-width: 992px) {
    .sc-topbar { position: sticky; }

    .sc-topbar-inner {
        gap: 10px;
        padding: 8px 14px;
    }

    .sc-brand {
        flex: 1;
        min-width: 0;
        font-size: 14px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .sc-nav-toggle { display: inline-flex; }

    .sc-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex: none;
        flex-direction: column;
        flex-wrap: nowrap;
        gap: 2px;
        padding: 8px 12px 12px;
        background: rgba(255, 255, 255, 0.98);
        border-bottom: 1px solid var(--sc-border);
        box-shadow: 0 12px 28px rgba(15, 23, 42, 0.12);
        max-height: min(70vh, 420px);
        overflow-y: auto;
        z-index: 110;
    }

    .sc-topbar.is-nav-open .sc-nav { display: flex; }

    .sc-nav a {
        white-space: normal;
        border-radius: 8px;
        padding: 10px 12px;
    }

    .sc-btn-topbar {
        padding: 8px 12px;
        font-size: 12px;
    }

    .sc-hero-float {
        margin-top: 0;
        padding: 0 14px 20px;
    }

    .sc-hero-meta { font-size: 12px; }

    .sc-hero-actions .sc-btn {
        flex: 1 1 calc(50% - 5px);
        justify-content: center;
        min-width: 0;
        padding: 9px 12px;
        font-size: 13px;
    }

    .sc-stats-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .sc-stat-card { padding: 14px; }
    .sc-stat-card .value { font-size: 1.35rem; }

    .sc-section { padding: 20px 16px; }
    .sc-section h2 { font-size: 1.2rem; }

    .sc-info-table { font-size: 13px; }
    .sc-info-table th {
        width: auto;
        min-width: 88px;
    }

    .sc-kg-grid { grid-template-columns: 1fr; }
    .sc-kg-toolbar { flex-direction: column; align-items: stretch; }
    .sc-kg-stats { margin-left: 0; }
    .sc-kg-filter { width: 100%; min-width: 0; }
    .sc-kg-toggle { width: 100%; }
    .sc-kg-mode { flex: 1; text-align: center; }
    .sc-kg-network { min-height: 360px; }

    .sc-chapter-list { grid-template-columns: 1fr; }
    .sc-entry-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

            .sc-showcase-card { flex-direction: column; }
            .sc-award-banner { flex-direction: column; align-items: flex-start; }
            .sc-tool-head { padding: 16px 16px 4px; }
            .sc-tool-body { padding: 8px 16px 16px; }
            .sc-tool-shot img { max-height: 220px; }
}

@media (max-width: 480px) {
    .sc-hero-actions .sc-btn { flex: 1 1 100%; }
    .sc-stats-row { grid-template-columns: 1fr; }
    .sc-entry-grid { grid-template-columns: 1fr; }
    .sc-kpi strong { font-size: 1.1rem; }
    .sc-main { padding: 16px 12px 48px; }
}