/* Pages — 注册、地图、新闻、工具箱、响应式 */
/* ============ 注册页面扩展样式 ============ */

.register-subtitle {
    text-align: center;
    color: var(--text-soft);
    margin-bottom: 1.5rem;
    margin-top: -0.5rem;
    font-size: 0.9rem;
}

.register-card {
    max-width: 500px;
}

.register-card .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.required { color: #ef4444; }

.field-hint {
    display: block;
    font-size: 0.72rem;
    color: var(--text-faint);
    margin-top: 0.2rem;
}

/* 密码强度 */
.password-strength { margin-top: 0.5rem; }
.strength-bar {
    height: 4px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.2rem;
}
.strength-fill {
    height: 100%;
    width: 0%;
    background: #ef4444;
    border-radius: 4px;
    transition: all 0.3s ease;
}
.strength-text {
    font-size: 0.75rem;
    font-weight: 500;
}

/* 验证码状态 */
.code-status {
    font-size: 0.8rem;
    margin-top: 0.4rem;
    min-height: 1.2rem;
}

/* 验证码发送按钮 */
.send-code-btn {
    white-space: nowrap;
    padding: 0.6rem 1rem;
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.82rem;
    color: var(--text-main);
    transition: all 0.2s ease;
}
.send-code-btn:hover:not(:disabled) {
    border-color: var(--brand);
    color: var(--brand);
}
.send-code-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* 定位按钮 */
.location-btn {
    padding: 0.55rem 0.8rem;
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    color: var(--brand);
    transition: all 0.2s ease;
    white-space: nowrap;
}
.location-btn:hover { background: var(--card-hover); }

/* ========== 滑动验证（滑到底即可） ========== */
.swipe-container {
    position: relative;
    width: 100%;
    height: 50px;
    margin: 1.2rem 0;
}
.swipe-track {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--surface-alt);
    border-radius: 25px;
    border: 1px solid var(--border);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.swipe-progress {
    position: absolute;
    top: 0; left: 0;
    height: 100%;
    width: 0%;
    background: var(--brand);
    border-radius: 25px;
    transition: all 0.35s ease;
    z-index: 0;
}
.swipe-text {
    position: relative;
    z-index: 1;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-soft);
    pointer-events: none;
    user-select: none;
    transition: opacity 0.2s ease;
}
.swipe-handle {
    position: absolute;
    top: 2px; left: 2px;
    width: 46px; height: 46px;
    background: var(--surface-strong);
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    font-size: 1rem;
    color: var(--brand);
    user-select: none;
    transition: left 0.35s ease;
}
.swipe-handle:active { cursor: grabbing; }

/* ========== 单位选择器 ========== */
.org-picker-wrapper {
    display: flex;
    gap: 0;
}
.org-picker-wrapper input {
    flex: 1;
    cursor: pointer;
    border-radius: 8px 0 0 8px !important;
}
.org-pick-btn {
    padding: 0 1rem;
    background: var(--surface-strong);
    border: 1px solid var(--border-strong);
    border-left: none;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
    color: var(--brand);
    transition: all 0.2s ease;
}
.org-pick-btn:hover { background: var(--card-hover); }

.org-picker-modal {
    max-width: 480px;
    max-height: 70vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.org-picker-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}
.org-picker-header h3 { color: var(--brand); margin: 0; }
.modal-close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-faint);
    padding: 0 0.2rem;
    line-height: 1;
}
.modal-close-btn:hover { color: var(--text-main); }

.org-search-bar {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 1rem;
    background: var(--surface-alt);
    border-radius: 10px;
    border: 1px solid var(--border);
    margin-bottom: 0.8rem;
}
.org-search-bar i { color: var(--text-faint); }
.org-search-bar input {
    flex: 1;
    border: none;
    background: transparent;
    outline: none;
    font-size: 0.9rem;
    color: var(--text-main);
}

.org-list {
    flex: 1;
    overflow-y: auto;
    max-height: 280px;
}
.org-item {
    padding: 0.65rem 0.8rem;
    cursor: pointer;
    font-size: 0.88rem;
    color: var(--text-main);
    border-radius: 8px;
    transition: all 0.15s ease;
}
.org-item:hover {
    background: var(--card-hover);
    color: var(--brand);
}
.org-empty {
    text-align: center;
    padding: 2rem;
    color: var(--text-faint);
}

.org-picker-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.8rem;
    border-top: 1px solid var(--border);
    margin-top: 0.5rem;
}
.org-custom-hint { font-size: 0.82rem; color: var(--text-faint); }

.region-input-group,
.code-input-group {
    display: flex;
    gap: 0.5rem;
}

.region-input-group input,
.code-input-group input {
    flex: 1;
}

.location-btn,
.send-code-btn {
    padding: 0.8rem;
    border: 1px solid rgba(59, 130, 246, 0.16);
    border-radius: 8px;
    background: rgba(59, 130, 246, 0.08);
    color: var(--brand);
    cursor: pointer;
    transition: all 0.3s ease;
}

.location-btn:hover,
.send-code-btn:hover:not(:disabled) {
    background: rgba(59, 130, 246, 0.14);
}

.send-code-btn:disabled,
.submit-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 滑块验证弹窗 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(31, 45, 58, 0.26);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: var(--surface-strong);
    border-radius: 24px;
    padding: 2rem;
    width: 90%;
    max-width: 400px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.modal-content h3 {
    color: var(--brand);
    margin-bottom: 0.5rem;
}

.modal-content p {
    color: var(--text-soft);
    margin-bottom: 1.5rem;
}

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

.modal-close {
    padding: 0.5rem 1.5rem;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: var(--surface-alt);
}

.about-content,
.download-content,
.visualization-content {
    display: grid;
    grid-template-columns: 230px 1fr;
    gap: 1.5rem;
    align-items: start;
}

.about-sidebar,
.download-sidebar,
.visualization-sidebar {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 1.4rem;
    box-shadow: var(--shadow-sm);
}

.about-main,
.download-main,
.visualization-main,
.data-info {
    color: var(--text-soft);
}

.about-main h2,
.download-main h2,
.visualization-main h2,
.data-info h2 {
    color: var(--text-main);
    margin-bottom: 0.9rem;
}

.about-main p,
.download-main p,
.visualization-main p,
.data-info {
    line-height: 1.7;
}

.resource-detail {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.resource-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
    gap: 1.5rem;
    padding: 2rem;
    border-radius: 28px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.resource-hero--teal {
    background: linear-gradient(135deg, rgba(15, 118, 110, 0.12), var(--card-bg));
}

.resource-hero--blue {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), var(--card-bg));
}

.resource-hero--gold {
    background: linear-gradient(135deg, rgba(244, 208, 111, 0.22), var(--card-bg));
}

.resource-hero h1 {
    font-size: 2.2rem;
    color: var(--text-main);
    line-height: 1.25;
    margin-bottom: 0.9rem;
}

.resource-lead {
    color: var(--text-soft);
    font-size: 1rem;
    line-height: 1.8;
    max-width: 720px;
}

.resource-link-card,
.resource-panel {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.resource-link-card h2,
.resource-panel h2 {
    color: var(--text-main);
    margin-bottom: 0.8rem;
}

.resource-link-card p,
.resource-panel p,
.resource-list li {
    color: var(--text-soft);
    line-height: 1.7;
}

.resource-link-btn,
.resource-back-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 1.4rem;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
}

.resource-link-btn {
    margin-top: 1rem;
    background: var(--brand);
    color: #fff;
}

.resource-link-btn:hover {
    background: var(--brand-2);
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
}

.resource-list {
    padding-left: 1.1rem;
}

.resource-list li + li {
    margin-top: 0.7rem;
}

.resource-actions {
    display: flex;
    justify-content: flex-start;
}

.resource-back-link {
    background: var(--card-bg);
    color: var(--brand);
    border: 1px solid var(--border-strong);
}

.resource-back-link:hover {
    background: rgba(59, 130, 246, 0.08);
}

/* ========== 折叠侧边栏 ========== */
.sidebar-section {
    margin-bottom: 0.3rem;
}

.sidebar-section-title {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    border-radius: 14px;
    cursor: pointer;
    color: var(--text-main);
    font-weight: 700;
    font-size: 0.92rem;
    transition: all 0.25s ease;
}
.sidebar-section-title:hover {
    background: var(--card-hover);
}
.sidebar-section-title .fa-chevron-down {
    margin-left: auto;
    font-size: 0.7rem;
    color: var(--text-faint);
    transition: transform 0.3s ease;
}

.sidebar-submenu {
    list-style: none;
    padding-left: 1.8rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
.sidebar-submenu .sidebar-link {
    font-size: 0.85rem;
    padding: 0.6rem 0.8rem;
}

/* ========== 地图浮窗 ========== */
.map-tooltip {
    position: absolute;
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.5rem 0.7rem;
    font-size: 0.78rem;
    color: var(--text-main);
    pointer-events: none;
    z-index: 50;
    box-shadow: var(--shadow-md);
    white-space: nowrap;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

/* ========== 对比图表容器 ========== */
.comparison-chart-container {
    background: var(--surface);
    border-radius: 16px;
    padding: 1.5rem;
    border: 1px solid var(--border);
    margin-top: 1.5rem;
}
.comparison-chart-container h3 {
    margin-bottom: 1rem;
    color: var(--brand);
}
.chart-wrapper {
    height: 300px;
    position: relative;
}
.metrics-summary {
    font-size: 0.85rem;
    color: var(--text-soft);
}

/* ========== 预测方法标签 ========== */
.prediction-method {
    font-size: 0.8rem;
    margin-top: 0.3rem;
}

/* ========== 信息卡片图标 ========== */
.info-card-icon {
    font-size: 2.5rem;
    color: var(--brand);
    margin-bottom: 0.8rem;
    display: block;
}

/* ========== 模型预测区 ========== */
.model-prediction-area {
    margin-top: 0;
}
.model-prediction-area h3 {
    color: var(--text-main);
    margin-bottom: 0.4rem;
    font-size: 2rem;
}
.model-prediction-area .description {
    color: var(--text-soft);
    margin-bottom: 1.2rem;
}

/* ========== TEC 页面 ========== */
.tec-page-container {
    background: var(--surface);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}
.tec-page-container h1 { margin-bottom: 2rem; color: var(--brand); }

.tec-content-new {
    display: flex;
    gap: 1.5rem;
}
.tec-main-new { flex: 1; }

.tec-card {
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
    margin-bottom: 1.5rem;
}
.tec-card h2 { margin-bottom: 1rem; color: var(--brand); }

/* ========== News 页面 V2 ========== */
.news-page-container {
    max-width: 1100px;
    margin: 0 auto;
}
.news-hero {
    text-align: center;
    padding: 2rem 0 1.5rem;
}
.news-hero h1 { font-size: 2rem; color: var(--brand); margin-bottom: 0.5rem; }
.news-hero p { color: var(--text-soft); font-size: 1rem; }

.news-dashboard {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
    margin-bottom: 2rem;
}
.sw-card {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 1.2rem;
    background: var(--card-bg);
    border-radius: 14px;
    border: 1px solid var(--border);
}
.sw-card > i { font-size: 1.5rem; color: var(--brand); }
.sw-value { display: block; font-size: 1.1rem; font-weight: 700; color: var(--text-main); }
.sw-label { display: block; font-size: 0.7rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.05em; }
.sw-status {
    margin-left: auto;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 600;
}
.sw-status.active { background: rgba(34,197,94,0.15); color: #22c55e; }
.sw-status.warning { background: rgba(244,208,111,0.2); color: #d97706; }

.news-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 1.5rem;
}

.news-feed {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.news-card-v2 {
    display: flex;
    gap: 1rem;
    padding: 1.3rem 1.5rem;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: all 0.2s ease;
}
.news-card-v2:hover { border-color: var(--brand-2); }
.news-card-alert { border-left: 3px solid #ef4444; }
.news-card-icon {
    width: 44px; height: 44px;
    background: var(--surface-alt);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; color: var(--brand);
    flex-shrink: 0;
}
.news-card-body { flex: 1; }
.news-card-meta { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 0.4rem; }
.news-category-tag {
    font-size: 0.7rem; padding: 0.15rem 0.5rem; border-radius: 999px; font-weight: 600;
}
.category-alert { background: rgba(239,68,68,0.15); color: #ef4444; }
.category-model { background: rgba(59,130,246,0.15); color: #3b82f6; }
.category-data  { background: rgba(15,118,110,0.15); color: #0f766e; }
.category-viz   { background: rgba(139,92,246,0.15); color: #8b5cf6; }
.category-event { background: rgba(249,115,22,0.15); color: #f97316; }
.category-pub   { background: rgba(236,72,153,0.15); color: #ec4899; }
.category-update { background: rgba(100,116,139,0.15); color: #64748b; }
.news-date-v2 { font-size: 0.75rem; color: var(--text-faint); }
.news-card-v2 h3 { font-size: 1rem; margin-bottom: 0.3rem; color: var(--text-main); }
.news-card-v2 p { font-size: 0.85rem; color: var(--text-soft); line-height: 1.5; }

.news-sidebar-v2 {
    display: flex; flex-direction: column; gap: 1rem;
}
.news-sidebar-card {
    padding: 1.3rem;
    background: var(--card-bg);
    border-radius: 14px;
    border: 1px solid var(--border);
}
.news-sidebar-card h3 { font-size: 0.95rem; color: var(--brand); margin-bottom: 0.8rem; }
.news-sidebar-card p { font-size: 0.82rem; color: var(--text-soft); line-height: 1.5; margin-bottom: 1rem; }
.quick-links { display: flex; flex-direction: column; gap: 0.5rem; }
.quick-links a {
    display: flex; align-items: center; gap: 0.6rem;
    padding: 0.5rem 0.8rem;
    border-radius: 10px;
    font-size: 0.85rem; color: var(--text-main); text-decoration: none;
    transition: all 0.15s ease;
}
.quick-links a:hover { background: var(--card-hover); color: var(--brand); }
.quick-links a i { color: var(--brand); width: 18px; text-align: center; }
.archive-list { display: flex; flex-direction: column; gap: 0.3rem; }
.archive-list a {
    display: flex; justify-content: space-between;
    padding: 0.4rem 0.6rem;
    border-radius: 8px;
    font-size: 0.85rem; color: var(--text-main); text-decoration: none;
    transition: all 0.15s ease;
}
.archive-list a:hover { background: var(--card-hover); color: var(--brand); }
.archive-list a span { color: var(--text-faint); font-weight: 600; }

@media (max-width: 900px) {
    .news-dashboard { grid-template-columns: repeat(2, 1fr); }
    .news-layout { grid-template-columns: 1fr; }
}

/* ========== News 页面 (old) ========== */
.news-page-container-old {
    background: var(--surface);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}
.news-page-container h1 { margin-bottom: 2rem; color: var(--brand); }

.news-content-new {
    display: flex;
    gap: 1.5rem;
}
.news-main-new { flex: 1; }

.alert-banner {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.2rem 1.5rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
}
.alert-warning {
    background: rgba(244, 208, 111, 0.15);
    border: 1px solid rgba(244, 208, 111, 0.4);
}
.alert-banner i { font-size: 1.5rem; color: #d97706; margin-top: 0.2rem; }
.alert-banner strong { display: block; margin-bottom: 0.3rem; }
.alert-banner p { font-size: 0.9rem; color: var(--text-soft); }
.alert-time { font-size: 0.8rem; color: var(--text-faint); white-space: nowrap; }

.news-list-enhanced {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.news-card-enhanced {
    padding: 1.3rem;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: all 0.2s ease;
}
.news-card-enhanced:hover {
    border-color: var(--brand-2);
}
.news-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}
.news-category-badge {
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-weight: 600;
}
.category-alert { background: rgba(239,68,68,0.15); color: #ef4444; }
.category-model { background: rgba(59,130,246,0.15); color: #3b82f6; }
.category-data  { background: rgba(15,118,110,0.15); color: #0f766e; }
.category-viz   { background: rgba(139,92,246,0.15); color: #8b5cf6; }
.category-event { background: rgba(249,115,22,0.15); color: #f97316; }
.category-pub   { background: rgba(236,72,153,0.15); color: #ec4899; }
.category-update { background: rgba(100,116,139,0.15); color: #64748b; }
.news-card-enhanced h3 { margin-bottom: 0.4rem; }
.news-card-enhanced p { color: var(--text-soft); margin-bottom: 0.5rem; font-size: 0.9rem; }

.news-archive-enhanced {
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
}
.news-archive-enhanced h2 { margin-bottom: 1rem; color: var(--brand); }
.archive-years { display: flex; gap: 2rem; }
.archive-link { color: var(--brand); text-decoration: none; }
.archive-link:hover { text-decoration: underline; }

/* ========== 工具箱 V2 ========== */
.tools-container-v2 { max-width: 1000px; margin: 0 auto; }
.tools-quad { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.tool-card-v2 {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 1.8rem;
    border: 1px solid var(--border);
}
.tool-card-v2:hover { border-color: var(--border-strong); }
.tool-card-v2 > i { font-size: 2rem; color: var(--brand); margin-bottom: 0.5rem; display: block; }
.tool-card-v2 h3 { font-size: 1.1rem; color: var(--text-main); margin-bottom: 0.3rem; }
.tool-card-v2 > p { font-size: 0.82rem; color: var(--text-soft); margin-bottom: 1rem; }
.tool-form-row { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; }
.tool-form-row label { font-size: 0.78rem; color: var(--text-faint); min-width: 80px; }
.tool-form-row input { flex: 1; padding: 0.4rem 0.6rem; border: 1px solid var(--border); border-radius: 8px; background: var(--input-bg); color: var(--text-main); font-size: 0.85rem; }
@media (max-width: 768px) { .tools-quad { grid-template-columns: 1fr; } }

/* [NEW] 工具卡片说明文字（数据来源/近似说明） */
.tool-note { margin-top: .7rem; color: var(--text-faint); font-size: .68rem; line-height: 1.5; }

/* ========== 管理员 V2 ========== */
.admin-v2 { max-width: 1000px; margin: 0 auto; }
.admin-hero { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.admin-hero h1 { font-size: 2rem; color: var(--brand); }
.admin-hero span { padding: 0.4rem 1rem; background: var(--card-bg); border-radius: 999px; font-size: 0.85rem; color: var(--text-soft); border: 1px solid var(--border); }
.admin-stat-cards { display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; margin-bottom: 1.5rem; }
.astat { display: flex; align-items: center; gap: 1rem; padding: 1.3rem; background: var(--card-bg); border-radius: 18px; border: 1px solid var(--border); }
.astat > i { font-size: 2rem; color: var(--brand); }
.astat-num { display: block; font-size: 1.6rem; font-weight: 700; color: var(--text-main); }
.astat span { font-size: 0.78rem; color: var(--text-faint); }
.admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.admin-card { padding: 1.5rem; background: var(--card-bg); border-radius: 20px; border: 1px solid var(--border); }
.admin-card h2 { font-size: 1.1rem; color: var(--brand); margin-bottom: 1rem; }

.user-card { display: flex; align-items: center; gap: 1rem; padding: 0.8rem; border-radius: 14px; margin-bottom: 0.4rem; transition: background 0.15s; }
.user-card:hover { background: var(--card-hover); }
.user-avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--brand); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1rem; flex-shrink: 0; }
.user-info { flex: 1; display: flex; flex-direction: column; }
.user-info strong { color: var(--text-main); font-size: 0.9rem; }
.user-info span { font-size: 0.78rem; color: var(--text-soft); }
.user-meta { font-size: 0.72rem !important; color: var(--text-faint) !important; }
.user-right { display: flex; flex-direction: column; align-items: flex-end; gap: 0.2rem; }
.user-date { font-size: 0.72rem; color: var(--text-faint); }

.news-mini { display: flex; align-items: center; gap: 0.6rem; padding: 0.6rem 0.8rem; border-radius: 10px; margin-bottom: 0.3rem; font-size: 0.85rem; }
.news-mini:hover { background: var(--card-hover); }
.news-mini strong { color: var(--text-main); flex: 1; }
@media (max-width: 900px) { .admin-stat-cards { grid-template-columns: repeat(2,1fr); } .admin-grid { grid-template-columns: 1fr; } }

/* ========== 下载页面 ========== */
.igs-download {
    max-width: 900px;
    margin: 0 auto;
    padding: 1rem 0;
}
.igs-header {
    padding: 1.5rem 0 2rem;
    border-bottom: 2px solid var(--brand);
    margin-bottom: 1.5rem;
}
.igs-header h1 {
    font-size: 1.8rem;
    color: var(--text-main);
    margin-bottom: 0.3rem;
}
.igs-header p {
    color: var(--text-soft);
    font-size: 0.95rem;
}

.igs-section {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
}
.igs-section:last-of-type { border-bottom: none; }
.igs-section h2 {
    font-size: 1.1rem;
    color: var(--brand);
    margin-bottom: 0.8rem;
}
.igs-section h2 i {
    margin-right: 0.5rem;
    opacity: 0.7;
}
.igs-desc {
    margin-bottom: 1rem;
    padding-left: 1.8rem;
}
.igs-desc p {
    font-size: 0.9rem;
    color: var(--text-main);
    line-height: 1.6;
    margin-bottom: 0.3rem;
}
.igs-meta {
    font-size: 0.8rem !important;
    color: var(--text-faint) !important;
    margin-top: 0.4rem !important;
}

.igs-links {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    padding-left: 1.8rem;
}
.igs-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 1rem;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-main);
    font-size: 0.82rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.15s ease;
}
.igs-link:hover {
    background: var(--card-hover);
    border-color: var(--brand);
    color: var(--brand);
}
.igs-link i {
    opacity: 0.6;
    font-size: 0.75rem;
}

.igs-footer-note {
    margin-top: 2rem;
    padding: 1rem 1.5rem;
    background: var(--surface-alt);
    border-radius: 8px;
    border: 1px solid var(--border);
}
.igs-footer-note p {
    font-size: 0.85rem;
    color: var(--text-soft);
}

/* ========== 下载页面 (旧) ========== */
.download-page-container {
    background: var(--surface);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}
.download-page-container h1 { margin-bottom: 2rem; color: var(--brand); }

.download-content-new {
    display: flex;
    gap: 1.5rem;
}
.download-main-new {
    flex: 1;
}

.download-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
}
.download-section h2 { margin-bottom: 0.8rem; color: var(--brand); }
.download-section > p { color: var(--text-soft); margin-bottom: 1rem; }

.data-checkboxes {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.data-checkbox-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--surface-strong);
    border-radius: 10px;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.2s ease;
}
.data-checkbox-card:hover {
    border-color: var(--brand);
}
.data-checkbox-card input[type="checkbox"] {
    width: 18px; height: 18px;
    accent-color: var(--brand);
}
.checkbox-content { display: flex; flex-direction: column; gap: 0.2rem; }
.checkbox-content strong { color: var(--text-main); }
.checkbox-content span { color: var(--text-soft); font-size: 0.85rem; }

.format-selector {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
}
.format-option { cursor: pointer; }
.format-option input[type="radio"] { display: none; }
.format-option input:checked + .format-card {
    border-color: var(--brand);
    background: var(--card-hover);
}
.format-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    padding: 1.2rem 0.8rem;
    background: var(--surface-strong);
    border-radius: 10px;
    border: 2px solid var(--border);
    text-align: center;
    transition: all 0.2s ease;
}
.format-card:hover { border-color: var(--brand-2); }
.format-card i { font-size: 1.5rem; color: var(--brand); }
.format-card strong { color: var(--text-main); font-size: 0.9rem; }
.format-card span { font-size: 0.75rem; color: var(--text-faint); }

.quick-downloads {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.quick-dl-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.2rem;
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    color: var(--text-main);
    font-weight: 600;
    transition: all 0.2s ease;
}
.quick-dl-btn:hover {
    border-color: var(--brand);
    color: var(--brand);
}

.download-status {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1.5rem;
    border: 1px solid var(--border);
    margin-top: 1rem;
}

.download-progress {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--brand);
    font-weight: 600;
}

.download-complete {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    text-align: center;
}

/* ========== 工具箱 ========== */
.tools-container {
    background: var(--surface);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}
.tools-container h1 { margin-bottom: 2rem; color: var(--brand); }

.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.tool-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border);
}
.tool-card h2 { margin-bottom: 0.5rem; color: var(--brand); font-size: 1.2rem; }
.tool-card > p { color: var(--text-soft); margin-bottom: 1rem; font-size: 0.9rem; }

.tool-result {
    margin-top: 1rem;
}

/* ========== 管理后台 ========== */
.admin-container {
    background: var(--surface);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}
.admin-header h1 { color: var(--brand); }
.admin-badge {
    padding: 0.4rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 980px;
    font-size: 0.85rem;
    color: var(--text-soft);
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}
.admin-stat-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.3rem;
    background: var(--card-bg);
    border-radius: 14px;
    border: 1px solid var(--border);
}
.admin-stat-card i { font-size: 2rem; color: var(--brand); }
.stat-number { display: block; font-size: 1.8rem; font-weight: 600; color: var(--text-main); }
.stat-label { display: block; font-size: 0.8rem; color: var(--text-faint); }

.admin-section {
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 14px;
    border: 1px solid var(--border);
}
.admin-section h2 { margin-bottom: 1rem; color: var(--brand); }

.admin-table-wrapper { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.admin-table th { text-align: left; padding: 0.7rem; border-bottom: 2px solid var(--border); color: var(--text-soft); font-weight: 600; }
.admin-table td { padding: 0.6rem 0.7rem; border-bottom: 1px solid var(--border); color: var(--text-main); }
.admin-table tbody tr:hover { background: var(--card-hover); }

.role-badge {
    padding: 0.2rem 0.6rem;
    border-radius: 980px;
    font-size: 0.75rem;
    font-weight: 600;
}
.role-badge.admin { background: rgba(15,118,110,0.15); color: var(--brand); }
.role-badge.user { background: rgba(148,163,184,0.2); color: var(--text-soft); }

.admin-status-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.8rem; }
.status-item-admin {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.7rem 1rem;
    background: var(--surface-strong);
    border-radius: 10px;
    border: 1px solid var(--border);
}
.status-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.status-dot.active { background: #22c55e; }
.status-dot.inactive { background: #94a3b8; }
.status-value { margin-left: auto; font-weight: 600; color: var(--text-main); font-size: 0.85rem; }

/* ========== 地图容器 ========== */
.map-container {
    background: var(--canvas-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
}

/* 新布局响应式 */
@media (max-width: 900px) {
    .tools-grid { grid-template-columns: 1fr; }
    .main-content {
        flex-direction: column;
    }

    .left-sidebar {
        width: 100%;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .ne-map-container {
        flex-direction: column;
    }
    .lon-labels { padding-left: 30px; }
    .lat-labels { width: 28px; }

    .map-legend {
        min-width: 150px;
    }

    .register-card .form-row {
        grid-template-columns: 1fr;
    }

    .bottom-bar,
    .about-content,
    .download-content,
    .visualization-content {
        grid-template-columns: 1fr;
    }

    .bottom-bar {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ========== 数据来源标签 ========== */
.data-source-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-right: 4px;
}
.data-source-badge.omni {
    background: rgba(59, 130, 246, 0.15);
    color: #3b82f6;
    border: 1px solid rgba(59, 130, 246, 0.3);
}
.data-source-badge.gim {
    background: rgba(15, 118, 110, 0.15);
    color: #0f766e;
    border: 1px solid rgba(15, 118, 110, 0.3);
}
.data-source-badge.user {
    background: rgba(139, 92, 246, 0.15);
    color: #8b5cf6;
    border: 1px solid rgba(139, 92, 246, 0.3);
}
.data-source-badge.default {
    background: rgba(148, 163, 184, 0.15);
    color: #94a3b8;
    border: 1px solid rgba(148, 163, 184, 0.3);
}

/* ========== 首页截图风格覆盖 ========== */
body {
    background: var(--bg-main);
}
[data-theme="light"] body {
    background: #f7fbff;
}

.header {
    padding: 1.05rem 2rem;
    background: var(--header-bg);
    box-shadow: 0 8px 26px rgba(75, 104, 132, 0.07);
}

.header-content {
    max-width: 1120px;
}

.logo h1 {
    font-size: 1.18rem;
    letter-spacing: 0;
}

.logo .subtitle {
    font-size: 0.68rem;
    color: #6d7f90;
}

.nav ul {
    gap: 1.25rem;
}

.nav a {
    padding: 0.42rem 0.8rem;
    font-size: 0.88rem;
}

.auth {
    gap: 0.7rem;
}

.user-info {
    font-size: 0.82rem;
}

.btn {
    padding: 0.48rem 1.08rem;
    font-size: 0.82rem;
}

.btn-login {
    border-color: transparent;
}

.main-content {
    max-width: 1120px;
    margin: 1.8rem auto;
    padding: 0 1rem;
    gap: 1.45rem;
}

.page-area {
    display: flex;
    justify-content: center;
}

.new-home-container,
.main-content-wrapper,
.main-area {
    width: 100%;
}

.main-content-wrapper {
    padding: 0;
}

.main-area {
    max-width: 860px;
    gap: 1.25rem;
}

.left-sidebar {
    width: 184px;
    padding: 1.25rem 1.05rem;
    border-radius: 16px;
    background: var(--card-bg);
    box-shadow: 0 18px 45px rgba(52, 81, 111, 0.08);
}

.sidebar-kicker,
.section-kicker {
    margin-bottom: 0.52rem;
    font-size: 0.62rem;
    letter-spacing: 0.12em;
    color: #0f8f83;
}

.sidebar-heading {
    font-size: 1.18rem;
    margin-bottom: 1rem;
}

.sidebar-section-title {
    padding: 0.6rem 0.55rem;
    font-size: 0.8rem;
    border-radius: 10px;
}

.sidebar-submenu {
    padding-left: 0.7rem;
}

.sidebar-submenu .sidebar-link {
    padding: 0.55rem 0.72rem;
    font-size: 0.75rem;
    border-radius: 999px;
    background: var(--card-bg);
}

.section-3,
.section-2 {
    border-radius: 16px;
    padding: 1.45rem 1.55rem;
    background: var(--card-bg);
    border-color: rgba(150, 172, 193, 0.16);
    box-shadow: 0 22px 50px rgba(52, 81, 111, 0.08);
}

.ne-visualization h3,
.dashboard-header h3,
.datasource-section h3,
.model-info h3 {
    font-size: 1.42rem;
    line-height: 1.3;
    margin-bottom: 0.55rem;
}

.ne-visualization .description,
.dashboard-header .description,
.datasource-section .description {
    font-size: 0.82rem;
    line-height: 1.7;
    margin-bottom: 0.8rem;
}

.data-source-line {
    margin-bottom: 0.68rem;
    font-size: 0.68rem;
}

.time-selector {
    display: grid;
    grid-template-columns: minmax(260px, 1fr) 62px 42px;
    gap: 0.9rem;
    margin-bottom: 1rem;
}

#sliderLabel {
    min-width: 0 !important;
    font-size: 0.72rem !important;
}

.play-btn {
    width: 42px;
    height: 28px;
    padding: 0;
    justify-content: center;
    border-radius: 999px;
    background: var(--text-main);
    color: var(--bg-main);
}

.ne-map-container {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 132px;
    gap: 0.9rem;
    align-items: start;
}

#neMapCanvas {
    width: 100%;
    height: auto;
    aspect-ratio: 2 / 1;
    border-radius: 12px;
}

.map-legend {
    min-width: 0;
    width: 52px;
    padding: 0.4rem 0.3rem;
    border-radius: 8px;
}
.legend-gradient {
    width: 12px;
    height: 110px;
}
.legend-labels {
    font-size: 0.5rem;
}

.predict-entry-card {
    min-height: 112px;
    border-radius: 14px;
    padding: 1.2rem 1.45rem;
    background: linear-gradient(135deg, var(--card-bg), var(--surface-alt));
    box-shadow: 0 16px 36px rgba(52, 81, 111, 0.07);
}

.predict-entry-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
}

.predict-entry-label {
    font-size: 0.62rem;
}

.predict-entry-title {
    font-size: 1rem;
}

.predict-entry-desc {
    font-size: 0.76rem;
}

.predict-entry-note {
    font-size: 0.63rem;
}

.predict-entry-arrow {
    width: 30px;
    height: 30px;
}

.dashboard-header .section-subtitle {
    font-size: 0.68rem;
}

.dashboard-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.8rem;
}

.metric-card {
    min-height: 88px;
    padding: 1rem 1.05rem;
    border-radius: 10px;
    background: var(--card-bg);
}

.metric-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    font-size: 1rem;
}

.metric-value {
    font-size: 1.25rem;
}

.metric-label,
.metric-desc {
    font-size: 0.66rem;
}

/* 页脚不得隐藏：备案号要求全站可见。原先这里有一条无条件隐藏页脚的规则，
   会把「备案号 / 署名 / 联系邮箱」在所有页面一起关掉（2026-10-24 移除）。 */

@media (max-width: 900px) {
    .main-content {
        max-width: 720px;
    }

    .left-sidebar {
        width: 100%;
    }

    .main-area {
        max-width: 100%;
    }

    .ne-map-container {
        grid-template-columns: 1fr;
    }

    .map-legend {
        flex-direction: row;
        align-items: center;
    }
}

@media (max-width: 640px) {
    .time-selector {
        grid-template-columns: 1fr 52px 38px;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* ================================================================
   主页 2026 — Ionosphere Observatory
   与独立电离层实验室统一的深色科研视觉，仅作用于首页。
   ================================================================ */
[data-theme="dark"] body.home-page {
    --bg-main: #02060c;
    --surface: #07111d;
    --surface-alt: #091727;
    --card-bg: rgba(8, 20, 34, 0.82);
    --card-hover: rgba(12, 31, 50, 0.94);
    --header-bg: rgba(2, 7, 14, 0.82);
    --text-main: #ecf8ff;
    --text-soft: #91a9bc;
    --text-faint: #62798c;
    --border: rgba(127, 180, 205, 0.13);
    --border-strong: rgba(103, 227, 211, 0.28);
    --brand: #56ead5;
    --brand-2: #4a91ff;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.18);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.28);
    --shadow-lg: 0 8px 26px rgba(0, 0, 0, 0.38);
    background: #02060c;
    color: var(--text-main);
}

.home-page .header {
    padding: 0.8rem 2rem;
    background: var(--header-bg);
    border-bottom-color: var(--border);
    box-shadow: none;
}
.home-page .header-content { max-width: 1480px; }
.home-page .logo h1 {
    font-size: 1.06rem;
    letter-spacing: -0.02em;
    background: none;
    -webkit-text-fill-color: var(--text-main);
    color: var(--text-main);
}
.home-page .logo h1 i { color: var(--brand); margin-right: 0.25rem; }
.home-page .logo .subtitle { font-size: 0.62rem; letter-spacing: 0.08em; text-transform: uppercase; }
.home-page .nav ul { gap: 0.32rem; }
.home-page .nav a {
    padding: 0.48rem 0.82rem;
    color: var(--text-soft);
    font-size: 0.79rem;
    border: 1px solid transparent;
}
.home-page .nav a::after { display: none; }
.home-page .nav a:hover,
.home-page .nav a.active {
    color: var(--text-main);
    background: color-mix(in srgb, var(--brand) 10%, transparent);
    border-color: color-mix(in srgb, var(--brand) 26%, transparent);
}
.home-page .auth { gap: 0.55rem; }
.home-page .global-data-status { display: none; }
.home-page .lang-toggle,
.home-page .theme-toggle,
.home-page .btn-login { background: var(--surface); }
.home-page .btn { padding: 0.48rem 1rem; font-size: 0.78rem; }

.home-page .main-content {
    max-width: 1480px;
    margin: 1.35rem auto 3rem;
    padding: 0 1.6rem;
    gap: 1rem;
}
.home-page .page-area { min-width: 0; }
.home-page .left-sidebar {
    width: 218px;
    padding: 1.25rem;
    position: sticky;
    top: 86px;
    border-radius: 22px;
    background: var(--surface);
    border-color: var(--border);
    box-shadow: var(--shadow-sm);
}
.home-page .sidebar-kicker { color: var(--brand); font-size: 0.61rem; }
.home-page .sidebar-heading { font-size: 1.18rem; margin-bottom: 1.35rem; }
.home-page .sidebar-section { border-top: 1px solid var(--border); padding-top: 0.7rem; }
.home-page .sidebar-section:first-child { border-top: 0; padding-top: 0; }
.home-page .sidebar-section-title { color: var(--text-soft); font-size: 0.75rem; }
.home-page .sidebar-submenu .sidebar-link {
    padding: 0.62rem 0.75rem;
    border-radius: 10px;
    background: transparent;
    border-color: transparent;
    color: var(--text-soft);
    font-size: 0.73rem;
    font-weight: 560;
}
.home-page .sidebar-submenu .sidebar-link:hover {
    color: var(--text-main);
    transform: none;
    background: color-mix(in srgb, var(--brand) 9%, transparent);
    border-color: color-mix(in srgb, var(--brand) 16%, transparent);
}
.home-page .footer { background: var(--bg-main); border-top: 1px solid var(--border); color: var(--text-faint); }

.home-observatory { display: flex; flex-direction: column; gap: 1rem; min-width: 0; }
.home-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    overflow: hidden;
    position: relative;
    border-radius: 24px;
    border: 1px solid var(--border);
    background: var(--surface-strong);
    box-shadow: var(--shadow-sm);
}
.home-hero-copy { padding: clamp(2.2rem, 4vw, 4.2rem); position: relative; z-index: 2; }
.home-eyebrow {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin: 0 0 1.15rem;
    color: var(--brand);
    font: 700 0.63rem/1.2 'Segoe UI', sans-serif;
    letter-spacing: 0.18em;
}
.home-eyebrow span,
.live-pulse {
    width: 7px;
    height: 7px;
    display: inline-block;
    border-radius: 50%;
    background: var(--brand);
}
.home-beta-notice {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    width: max-content;
    max-width: 100%;
    margin: .85rem 0 0;
    padding: .38rem .72rem;
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    color: var(--text-soft);
    background: var(--surface);
    font-size: .68rem;
    font-weight: 650;
    line-height: 1.35;
}
.home-beta-notice::before {
    width: .42rem;
    height: .42rem;
    flex: 0 0 .42rem;
    border-radius: 50%;
    background: #c58a37;
    content: "";
}
.home-hero h1 {
    margin: 0;
    max-width: 700px;
    color: var(--text-main);
    font-family: 'Segoe UI Variable Display', 'Microsoft YaHei UI', sans-serif;
    font-size: clamp(2.6rem, 4.2vw, 4.4rem);
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: -0.03em;
}
.home-hero h1 em {
    font-style: normal;
    color: var(--brand);
}
.home-hero-lead { max-width: 640px; margin: 1.35rem 0 0; color: var(--text-soft); font-size: 1.05rem; line-height: 1.85; }
.home-hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.8rem; }
.home-primary-action,
.home-secondary-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    min-height: 44px;
    padding: 0.72rem 1.15rem;
    border-radius: 12px;
    font-size: 0.78rem;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
    /* [FIX] 两个按钮统一配色；品牌色底上用深色文字，保证对比度 */
    color: #04211d;
    background: var(--brand);
    border: 1px solid transparent;
}
.home-primary-action i,
.home-secondary-action i { color: inherit; }
.home-primary-action:hover,
.home-secondary-action:hover {
    background: var(--brand-2);
    color: #fff;
    border-color: transparent;
    transform: translateY(-1px);
}
.home-capabilities { display: flex; gap: 1.5rem; margin-top: 2rem; color: var(--text-soft); font-size: 0.78rem; letter-spacing: 0.04em; }
.home-capabilities span { display: flex; flex-direction: column; gap: 0.16rem; }
.home-capabilities b { color: var(--text-main); font-size: 1rem; letter-spacing: 0.05em; }

.home-command-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }
.home-command-card {
    position: relative;
    min-height: 124px;
    display: grid;
    grid-template-columns: 38px 1fr auto;
    align-items: center;
    gap: 0.9rem;
    padding: 1.1rem 1.15rem;
    text-decoration: none;
    border-radius: 18px;
    color: var(--text-main);
    background: var(--surface);
    border: 1px solid var(--border);
}
.home-command-card:hover { border-color: var(--border-strong); }
.home-command-card > i { font-size: 1.1rem; color: var(--brand); }
.home-command-card div { display: flex; flex-direction: column; }
.home-command-card small { color: var(--text-faint); font-size: 0.66rem; letter-spacing: 0.12em; font-weight: 700; }
.home-command-card strong { font-size: 1rem; margin-top: 0.2rem; }
.home-command-card p { margin: 0.18rem 0 0; color: var(--text-soft); font-size: 0.78rem; }
.command-index { position: absolute; top: 0.55rem; left: 0.7rem; font-size: 0.6rem; color: var(--text-faint); letter-spacing: 0.08em; }
.command-arrow { color: var(--text-faint); font-size: 0.9rem; }

.home-panel {
    border-radius: 20px;
    padding: clamp(1.15rem, 2vw, 1.65rem);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
.home-panel-heading { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; margin-bottom: 1rem; }
.home-panel-heading .section-kicker { margin: 0 0 0.45rem; display: flex; align-items: center; gap: 0.55rem; color: var(--brand); font-size: 0.68rem; }
.home-panel-heading h2,
.methods-heading h2 { margin: 0; color: var(--text-main); font-size: clamp(1.35rem, 2vw, 1.7rem); font-weight: 680; letter-spacing: -0.02em; }
.home-panel-heading p:not(.section-kicker) { margin: 0.45rem 0 0; color: var(--text-soft); font-size: 0.88rem; }
.map-data-meta { min-width: 150px; padding: 0.65rem 0.8rem; border-left: 1px solid var(--border-strong); display: flex; flex-direction: column; gap: 0.25rem; }
.map-data-meta span { color: var(--text-faint); font-size: 0.54rem; letter-spacing: 0.14em; }
.map-data-meta strong { color: var(--text-soft); font-size: 0.67rem; font-weight: 600; }

.home-time-controller { display: flex; align-items: center; gap: 0.75rem; margin: 1.1rem 0 0.8rem; padding: 0.58rem 0.7rem; border-radius: 13px; background: var(--surface-alt); border: 1px solid var(--border); }
.home-time-controller input { flex: 1; min-width: 100px; accent-color: var(--brand); }
.controller-label { font-size: 0.52rem; color: var(--text-faint); letter-spacing: 0.14em; }
.home-time-controller #sliderLabel { min-width: 48px; text-align: center; color: var(--text-soft); font-size: 0.67rem; }
.home-time-controller .play-btn { width: 32px; height: 32px; padding: 0; justify-content: center; border-radius: 50%; color: var(--bg-main); background: var(--brand); }
.home-time-controller .forecast-toggle-btn { height: 32px; border-radius: 9px; color: var(--text-soft); background: var(--surface); border-color: var(--border); }
.forecast-mode-bar { display: none; margin-bottom: 0.75rem; padding: 0.55rem 0.75rem; border-radius: 10px; color: var(--brand-2); background: color-mix(in srgb, var(--brand-2) 9%, transparent); border: 1px solid color-mix(in srgb, var(--brand-2) 26%, transparent); font-size: 0.67rem; justify-content: space-between; }
.home-map-panel .ne-map-container { gap: 0.75rem; }
.home-map-panel .map-frame { padding: 0.55rem 0.65rem 0.65rem; border-radius: 18px; background: var(--surface-alt); border: 1px solid var(--border); }
.home-map-panel .map-canvas-wrap { position: relative; overflow: hidden; border-radius: 13px; background: var(--canvas-bg); }
.home-map-panel #neMapCanvas { display: block; width: 100% !important; height: auto !important; aspect-ratio: 2 / 1; cursor: crosshair; border-radius: 13px; filter: saturate(0.88) contrast(1.05); }
.home-map-panel .lon-labels,
.home-map-panel .lat-labels { color: var(--text-soft); }
.map-hover-tooltip { display: none; position: absolute; pointer-events: none; z-index: 10; padding: 0.35rem 0.55rem; border-radius: 8px; color: var(--text-main); background: var(--surface-strong); border: 1px solid var(--border-strong); font-size: 0.67rem; white-space: nowrap; }
.map-loading { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; pointer-events: none; z-index: 5; background: color-mix(in srgb, var(--surface) 45%, transparent); }
.map-loading span { padding: 0.55rem 0.8rem; border-radius: 10px; color: var(--text-soft); background: var(--surface-strong); border: 1px solid var(--border); font-size: 0.69rem; }
.home-map-panel .map-legend { background: var(--card-bg); border-color: var(--border); }

.home-analysis-grid { display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(340px, 0.82fr); gap: 1rem; align-items: stretch; }
.forecast-section { min-width: 0; }
.forecast-header { align-items: center; margin-bottom: 0.45rem; }
.forecast-badge { padding: 0.42rem 0.62rem; border: 1px solid var(--border); border-radius: 8px; color: var(--text-soft); background: var(--surface-alt); font-size: 0.55rem; letter-spacing: 0.1em; }
.forecast-badge.fc-model { color: var(--brand); border-color: color-mix(in srgb, var(--brand) 30%, transparent); background: color-mix(in srgb, var(--brand) 9%, transparent); }
.forecast-badge.fc-fallback { color: var(--brand-3); border-color: color-mix(in srgb, var(--brand-3) 32%, transparent); background: color-mix(in srgb, var(--brand-3) 10%, transparent); }
.forecast-location { margin-bottom: 0.65rem; color: var(--text-soft); font-size: 0.65rem; letter-spacing: 0.05em; }
.forecast-chart-wrap { position: relative; height: 250px; padding: 0.45rem; border-radius: 16px; overflow: hidden; background: var(--surface-alt); border: 1px solid var(--border); }
#forecastChart { width: 100%; height: 100%; }
.forecast-state { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; gap: 0.6rem; color: var(--text-soft); background: var(--surface-alt); font-size: 0.72rem; transition: opacity 0.25s ease; }
.forecast-state.ready { opacity: 0; pointer-events: none; }
.forecast-state.error { color: #d9534f; }
.forecast-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.55rem; margin-top: 0.65rem; }
.fc-card { min-height: 88px; padding: 0.75rem; text-align: left; border-radius: 13px; background: var(--card-bg); border: 1px solid var(--border); }
.fc-card span { display: block; color: var(--text-faint); font-size: 0.56rem; letter-spacing: 0.08em; }
.fc-card strong { display: block; margin-top: 0.35rem; color: var(--text-main); font-size: 0.95rem; font-weight: 650; }
.fc-card small { display: block; margin-top: 0.18rem; color: var(--text-faint); font-size: 0.55rem; }
.fc-card strong.up { color: #17a673; }
.fc-card strong.down { color: #e05252; }
.fc-card.skeleton { background: var(--surface-alt); border-color: var(--border); }
.forecast-footer { margin-top: 0.7rem; }
.forecast-refresh-btn { color: var(--brand); background: transparent; border-color: var(--border); border-radius: 9px; }
.forecast-refresh-btn:disabled { opacity: 0.45; cursor: wait; }

.telemetry-panel .home-panel-heading { align-items: center; }
.telemetry-unit { display: flex; flex-direction: column; color: var(--text-faint); font-size: 0.5rem; letter-spacing: 0.12em; text-align: right; }
.telemetry-unit b { margin-top: 0.18rem; color: var(--text-soft); font-size: 0.65rem; }
.telemetry-panel .dashboard-grid { grid-template-columns: repeat(2, 1fr); gap: 0.55rem; }
.telemetry-panel .metric-card { min-width: 0; min-height: 103px; padding: 0.75rem; display: block; border-radius: 14px; background: var(--card-bg); border: 1px solid var(--border); box-shadow: none; }
.telemetry-panel .metric-card:hover { transform: none; border-color: var(--border-strong); }
.telemetry-panel .metric-card::before { content: ''; display: block; width: 16px; height: 2px; margin-bottom: 0.55rem; background: var(--text-faint); border-radius: 2px; }
.telemetry-panel .metric-card.nominal::before { background: #4fe1bb; }
.telemetry-panel .metric-card.warning::before { background: #ffc068; }
.telemetry-panel .metric-card.danger::before { background: #ff7069; }
.telemetry-panel .metric-label { display: block; color: var(--text-faint); font-size: 0.54rem; letter-spacing: 0.1em; }
.telemetry-panel .metric-value { margin-top: 0.28rem; color: var(--text-main); font-size: 1.16rem; font-weight: 650; }
.telemetry-panel .metric-card small { display: block; margin-top: 0.2rem; color: var(--text-faint); font-size: 0.5rem; letter-spacing: 0.04em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.datasource-heading { align-items: flex-end; }
.datasource-updated { color: var(--text-faint); font-size: 0.55rem; letter-spacing: 0.08em; }
.home-page .datasource-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0.55rem; }
.home-page .datasource-card { min-width: 0; min-height: 132px; padding: 0.85rem; border-radius: 14px; background: var(--surface); border-color: var(--border); box-shadow: none; }
.home-page .datasource-card:hover { border-color: var(--border-strong); }
.home-page .ds-name { color: var(--text-main); font-size: 0.8rem; }
.home-page .ds-status { display: flex; align-items: center; gap: 0.28rem; color: var(--text-soft); font-size: 0.62rem; white-space: nowrap; }
.home-page .ds-status i { width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.home-page .status-online { color: #17a673; }
.home-page .status-offline { color: #e05252; }
.home-page .ds-desc { min-height: 2.5em; margin: 0.55rem 0; color: var(--text-soft); font-size: 0.63rem; }
.home-page .ds-link { color: var(--text-faint); font-size: 0.5rem; letter-spacing: 0.1em; }
.home-page .ds-link:hover { color: var(--brand); }

.home-methods { padding: clamp(1.4rem, 2.4vw, 2.2rem); border-radius: 20px; border: 1px solid var(--border); background: var(--surface); }
.methods-heading .section-kicker { margin-bottom: 0.45rem; color: var(--brand); font-size: 0.68rem; }
.methods-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 1.4rem; border-top: 1px solid var(--border); }
.methods-grid article { position: relative; min-height: 180px; padding: 1.5rem 1.2rem 0.4rem; border-left: 1px solid var(--border); }
.methods-grid article:first-child { border-left: 0; }
.methods-grid article > span { position: absolute; right: 1rem; top: 1rem; color: var(--text-faint); font-size: 0.65rem; letter-spacing: 0.14em; }
.methods-grid article i { color: var(--brand); font-size: 1.1rem; }
.methods-grid h3 { margin: 1rem 0 0.45rem; color: var(--text-main); font-size: 1rem; }
.methods-grid p { margin: 0; color: var(--text-soft); font-size: 0.8rem; line-height: 1.7; }

@media (max-width: 1180px) {
    .home-hero { grid-template-columns: 1fr; }
    .home-hero-copy { padding: 2.5rem; }
    .home-analysis-grid { grid-template-columns: 1fr; }
    .telemetry-panel .dashboard-grid { grid-template-columns: repeat(3, 1fr); }
    .home-page .datasource-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
    .home-page .main-content { padding: 0 0.9rem; }
    .home-page .left-sidebar { display: none; }
    .home-hero { grid-template-columns: 1fr; }
    .home-command-grid { grid-template-columns: 1fr; }
    .home-command-card { min-height: 96px; }
    .home-page .header-content { flex-wrap: wrap; gap: 0.6rem; }
    .home-page .nav { order: 3; width: 100%; overflow-x: auto; }
    .home-page .nav { scrollbar-width: none; -ms-overflow-style: none; }
    .home-page .nav::-webkit-scrollbar { display: none; }
    .home-page .nav ul { width: max-content; }
}

@media (max-width: 640px) {
    .home-page .header { padding: 0.7rem 0.85rem; }
    .home-page .logo .subtitle,
    .home-page .auth .btn-register,
    .home-page .theme-toggle { display: none; }
    .home-page .main-content { margin-top: 0.8rem; padding: 0 0.65rem; }
    .home-hero { border-radius: 18px; }
    .home-hero-copy { padding: 1.8rem 1.25rem; }
    .home-hero h1 { font-size: 2.3rem; }
    .home-capabilities { gap: 0.9rem; }
    .home-panel { border-radius: 18px; padding: 1rem; }
    .home-panel-heading { flex-direction: column; }
    .map-data-meta { border-left: 0; border-top: 1px solid var(--border); padding-left: 0; }
    .controller-label { display: none; }
    .home-time-controller { flex-wrap: wrap; }
    .home-time-controller input { min-width: calc(100% - 72px); }
    .home-time-controller .forecast-toggle-btn { width: 100%; justify-content: center; }
    .forecast-cards { grid-template-columns: 1fr; }
    .telemetry-panel .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
    .home-page .datasource-grid { grid-template-columns: 1fr; }
    .methods-grid { grid-template-columns: 1fr; }
    .methods-grid article { min-height: 150px; border-left: 0; border-top: 1px solid var(--border); }
    .methods-grid article:first-child { border-top: 0; }
}

/* ================================================================
   首页体验优化：更清晰的层级、更稳定的响应式布局
   ================================================================ */
:root {
    --home-content-width: 1180px;
    --home-radius: 18px;
}

body {
    font-family: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    letter-spacing: 0.005em;
}

button,
a,
input {
    -webkit-tap-highlight-color: transparent;
}

:where(a, button, input):focus-visible {
    outline: 3px solid rgba(59, 130, 246, 0.38);
    outline-offset: 3px;
}

.header {
    padding: 0.8rem 1.5rem;
    background: color-mix(in srgb, var(--header-bg) 88%, transparent);
}

.header-content {
    max-width: var(--home-content-width);
    gap: 0.8rem 1.2rem;
    /* [FIX] 允许头部在中等宽度下换行，避免导航/登录区互相挤压导致文字错位 */
    flex-wrap: wrap;
}

.logo {
    /* [FIX] 原为 min-width:max-content，挤压时无法收缩并把导航顶到换行 */
    min-width: 0;
}

.logo h1,
.logo .subtitle {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.logo h1 {
    font-size: 1.12rem;
    line-height: 1.25;
}

.logo .subtitle {
    margin-top: 0.15rem;
    font-size: 0.67rem;
}

.nav {
    flex: 1;
    display: flex;
    justify-content: center;
    /* [FIX] 空间不足时导航横向滚动而不是让菜单文字折行 */
    min-width: 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.nav::-webkit-scrollbar {
    display: none;
}

.nav ul {
    gap: 0.35rem;
    flex-wrap: nowrap;
}

.nav a,
.nav-parent {
    padding: 0.46rem 0.72rem;
    font-size: 0.82rem;
    /* [FIX] 菜单项文字不折行，保持单行对齐 */
    white-space: nowrap;
}

.auth {
    flex-wrap: wrap;
    justify-content: flex-end;
}

.main-content {
    max-width: var(--home-content-width);
    margin: 1.4rem auto 2.5rem;
}

.left-sidebar {
    position: sticky;
    top: 5.4rem;
    width: 196px;
    border-radius: var(--home-radius);
}

.main-area {
    max-width: none;
    gap: 1rem;
}

.section-3,
.section-2 {
    border-radius: var(--home-radius);
    padding: 1.4rem 1.5rem;
    box-shadow: 0 14px 38px rgba(36, 74, 108, 0.07);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.section-3:hover,
.section-2:hover {
    border-color: rgba(15, 118, 110, 0.24);
    box-shadow: 0 18px 44px rgba(36, 74, 108, 0.1);
}

.ne-visualization h3,
.dashboard-header h3,
.datasource-section h3,
.model-info h3 {
    letter-spacing: -0.02em;
}

.section-kicker {
    font-size: 0.64rem;
    letter-spacing: 0.15em;
}

.ne-map-container {
    grid-template-columns: minmax(0, 1fr) 62px;
    gap: 0.75rem;
}

.map-frame {
    padding: 0.55rem;
    border-radius: 14px;
    background: var(--surface-alt);
    border: 1px solid var(--border);
}

#neMapCanvas {
    display: block;
    border: 1px solid rgba(59, 130, 246, 0.12);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.time-selector {
    align-items: center;
    padding: 0.55rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface-alt);
}

.time-selector input[type="range"] {
    min-width: 0;
}

.play-btn,
.forecast-toggle-btn {
    transition: transform 0.2s ease, filter 0.2s ease;
}

.play-btn:hover,
.forecast-toggle-btn:hover {
    filter: brightness(1.05);
}

.quick-nav-grid {
    gap: 0.8rem;
}

.predict-entry-card {
    min-height: 118px;
    border: 1px solid var(--border);
    box-shadow: none;
}

.predict-entry-card:hover {
    border-color: rgba(15, 118, 110, 0.32);
}

.home-two-col {
    gap: 1rem;
}

.metric-card,
.datasource-card,
.info-card,
.fc-card {
    box-shadow: none;
}

.metric-card:hover,
.datasource-card:hover,
.info-card:hover {
    border-color: var(--border-strong);
}

.forecast-chart-wrap {
    min-height: 210px;
}

@media (max-width: 980px) {
    .header-content {
        flex-wrap: wrap;
    }

    .nav {
        order: 3;
        flex-basis: 100%;
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 0.1rem;
    }

    .nav ul {
        flex-wrap: nowrap;
    }

    .nav a {
        white-space: nowrap;
    }
}

@media (max-width: 640px) {
    .header {
        padding: 0.65rem 0.8rem;
    }

    .header-content {
        gap: 0.55rem;
    }

    .auth {
        width: 100%;
        justify-content: flex-start;
    }

    .main-content {
        margin: 0.8rem auto 1.5rem;
        padding: 0 0.65rem;
    }

    .section-3,
    .section-2 {
        padding: 1rem;
        border-radius: 14px;
    }

    .ne-visualization h3,
    .dashboard-header h3,
    .datasource-section h3,
    .model-info h3 {
        font-size: 1.18rem;
    }

    .time-selector {
        grid-template-columns: minmax(0, 1fr) 48px 34px;
        padding: 0.45rem;
    }

    .quick-nav-grid,
    .home-two-col {
        gap: 0.65rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}

/* ================================================================
   Model 页面 — TabTransformer 架构展示
   ================================================================ */

/* 架构流程图 */
.arch-flow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 1.5rem;
    background: var(--surface-alt);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.arch-stage {
    width: 100%;
    max-width: 600px;
}

.arch-label {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--brand-2);
    margin-bottom: 0.4rem;
    text-align: center;
}

.arch-box {
    text-align: center;
    padding: 1.2rem 1.5rem;
    border-radius: 12px;
    border: 1px solid;
}

.arch-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.arch-detail {
    font-size: 0.82rem;
    line-height: 1.7;
    color: var(--text-soft);
}

.arch-input {
    background: rgba(59, 130, 246, 0.08);
    border-color: rgba(59, 130, 246, 0.2);
}
.arch-input .arch-title { color: #3b82f6; }

.arch-embed {
    background: rgba(139, 92, 246, 0.08);
    border-color: rgba(139, 92, 246, 0.2);
}
.arch-embed .arch-title { color: #8b5cf6; }

.arch-cls {
    background: rgba(236, 72, 153, 0.07);
    border-color: rgba(236, 72, 153, 0.18);
}
.arch-cls .arch-title { color: #ec4899; }

.arch-encoder {
    background: rgba(15, 118, 110, 0.1);
    border-color: rgba(15, 118, 110, 0.22);
}
.arch-encoder .arch-title { color: var(--brand); }

.arch-fusion {
    background: rgba(245, 158, 11, 0.08);
    border-color: rgba(245, 158, 11, 0.2);
}
.arch-fusion .arch-title { color: #f59e0b; }

.arch-output {
    background: rgba(34, 197, 94, 0.08);
    border-color: rgba(34, 197, 94, 0.2);
}
.arch-output .arch-title { color: #22c55e; }

.arch-arrow {
    font-size: 1.3rem;
    color: var(--brand-2);
    padding: 0.3rem 0;
    opacity: 0.6;
}

/* 特征标签 */
.tag {
    display: inline-block;
    padding: 0.15rem 0.6rem;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    white-space: nowrap;
}
.tag-time    { background: rgba(59,130,246,0.13);  color: #3b82f6; }
.tag-geo     { background: rgba(239,68,68,0.12);   color: #ef4444; }
.tag-solar   { background: rgba(245,158,11,0.13);  color: #f59e0b; }
.tag-spatial { background: rgba(15,118,110,0.12);  color: var(--brand); }
.tag-enc     { background: rgba(139,92,246,0.12);  color: #8b5cf6; }
.tag-iono    { background: rgba(34,197,94,0.12);   color: #22c55e; }

/* 训练卡片网格 */
.train-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.2rem;
}

.train-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.5rem;
}

.train-card:hover {
    border-color: rgba(15, 118, 110, 0.2);
}

.train-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(15, 118, 110, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    color: var(--brand);
}

.train-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1rem;
    color: var(--text-main);
}

.train-card p {
    font-size: 0.85rem;
    line-height: 1.7;
    color: var(--text-soft);
}

/* IRI vs Transformer 对比 */
.compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.compare-col {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.5rem;
}

.compare-col h3 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.compare-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.compare-list li {
    padding: 0.45rem 0 0.45rem 1.5rem;
    position: relative;
    font-size: 0.88rem;
    color: var(--text-soft);
    line-height: 1.6;
}

.compare-list li::before {
    content: "•";
    position: absolute;
    left: 0.3rem;
    color: var(--brand-2);
    font-weight: bold;
}

/* CTA 区域 */
.model-cta {
    text-align: center;
    background: linear-gradient(135deg, rgba(15,118,110,0.06), rgba(59,130,246,0.04));
    border-color: rgba(15, 118, 110, 0.15);
}

.model-cta .predict-btn {
    font-size: 1.05rem;
    padding: 0.8rem 2rem;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .train-grid,
    .compare-grid {
        grid-template-columns: 1fr;
    }

    .arch-stage {
        max-width: 100%;
    }

    .arch-box {
        padding: 1rem;
    }

    .arch-detail {
        font-size: 0.75rem;
    }
}

/* ================================================================
   电离层三维剖面控制面板
   ================================================================ */
.iono-control-panel {
    margin: 1rem 0;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.iono-panel-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    cursor: pointer;
    user-select: none;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-main);
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
}
.iono-panel-header:hover { background: rgba(15,118,110,0.06); }
.iono-panel-header i { font-size: 0.8rem; color: var(--brand-2); transition: transform 0.2s; }
.iono-panel-hint { font-size: 0.7rem; color: var(--text-faint); margin-left: auto; }

.iono-controls { padding: 0.7rem 1rem; transition: max-height 0.3s ease, padding 0.3s ease; max-height: 300px; overflow: hidden; }
.iono-controls.collapsed { max-height: 0; padding-top: 0; padding-bottom: 0; }

.iono-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.45rem;
    font-size: 0.8rem;
}

.iono-label {
    font-weight: 600;
    color: var(--text-soft);
    font-size: 0.75rem;
    min-width: 52px;
}

.iono-toggles { display: flex; gap: 0.35rem; flex-wrap: wrap; }

.iono-toggle-btn {
    padding: 0.25rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--surface);
    color: var(--text-soft);
    font-size: 0.72rem;
    cursor: pointer;
    transition: all 0.2s;
}
.iono-toggle-btn:hover { border-color: var(--brand); color: var(--brand); }
.iono-toggle-btn.active {
    background: rgba(15,118,110,0.12);
    border-color: var(--brand);
    color: var(--brand);
    font-weight: 600;
}

.iono-check {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-soft);
}
.iono-check input { accent-color: var(--brand); }

.iono-opacity-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--text-faint);
}
.iono-opacity-item input[type=range] { accent-color: var(--brand); }

@media (max-width: 768px) {
    .iono-row { flex-direction: column; align-items: flex-start; }
    .iono-toggles { width: 100%; }
    .iono-toggle-btn { flex: 1; text-align: center; }
}

/* ================================================================
   主页 — 6小时电离层预报
   ================================================================ */
.forecast-section { }

.forecast-header {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    margin-bottom: 1rem;
}
.forecast-header h3 { margin: 0; font-size: 1.25rem; }
.forecast-header .description { margin: 0; flex: 1; min-width: 200px; }

.forecast-badge {
    font-size: 0.7rem;
    padding: 2px 10px;
    border-radius: 12px;
    font-weight: 600;
    white-space: nowrap;
}
.fc-model { background: rgba(59,130,246,0.13); color: #3b82f6; }
.fc-fallback { background: rgba(245,158,11,0.13); color: #f59e0b; }

.forecast-body {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.forecast-location {
    font-size: 0.82rem;
    color: var(--text-soft);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.forecast-location i { color: var(--brand); }

/* [NEW] 首页预报站点经纬度编辑器 */
.forecast-site-edit {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    margin-left: .9rem;
    font-size: .68rem;
    color: var(--text-faint);
}
.forecast-site-edit input {
    width: 74px;
    padding: .18rem .4rem;
    font-size: .7rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--input-bg);
    color: var(--text-main);
}
.forecast-site-edit button {
    padding: .2rem .6rem;
    font-size: .7rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--surface-alt);
    color: var(--text-main);
    cursor: pointer;
}
.forecast-site-edit button:hover { border-color: var(--brand); color: var(--brand); }

.forecast-chart-wrap {
    height: 220px;
    background: var(--surface-alt);
    border-radius: 12px;
    padding: 0.5rem;
    border: 1px solid var(--border);
}

.forecast-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.7rem;
}

.fc-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.8rem 1rem;
    text-align: center;
}
.fc-card-label { display: block; font-size: 0.7rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 0.3rem; }
.fc-card-val  { display: block; font-size: 1.1rem; font-weight: 700; color: var(--text-main); }
.fc-card-unit { display: block; font-size: 0.7rem; color: var(--text-soft); margin-top: 0.15rem; }

.forecast-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.72rem;
    color: var(--text-faint);
}

.forecast-refresh-btn {
    padding: 0.3rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--surface);
    color: var(--brand);
    font-size: 0.72rem;
    cursor: pointer;
    transition: all 0.2s;
}
.forecast-refresh-btn:hover { background: rgba(15,118,110,0.08); border-color: var(--brand); }

@media (max-width: 768px) {
    .forecast-cards { grid-template-columns: 1fr; }
    .forecast-chart-wrap { height: 180px; }
}

/* ========== 手机端适配 ========== */
@media (max-width: 640px) {
    /* 侧边栏收起 */
    .left-sidebar { display: none; }
    .page-area { margin-left: 0 !important; }
    .main-content { max-width: 100%; padding: 0.3rem; }

    /* 地图容器 — 填满宽度 */
    .ne-map-container { flex-direction: column; gap: 0.4rem; }
    .map-frame { width: 100%; }
    .map-row { flex-direction: row; }
    .map-canvas-wrap { min-width: 0; }
    #neMapCanvas { width: 100% !important; height: auto !important; aspect-ratio: 2/1; border-radius: 8px; }

    /* 图例 — 横向紧凑条 */
    .map-legend { flex-direction: row; width: 100% !important; padding: 0.3rem 0.5rem; align-items: center; gap: 0.4rem; flex-wrap: wrap; border-radius: 8px; }
    /* 桌面端色条是竖的（linear-gradient to top），这里改成横条后必须同时把渐变方向
       翻成 to right，否则 13 段颜色会横向堆成一条条色带、与下方 48+→0 的标签对不上。
       色序与桌面端相反（红在高值侧），保证「左 = 48+，右 = 0」与标签一致。 */
    .legend-gradient {
        width: 100%;
        height: 8px;
        border-radius: 4px;
        background: linear-gradient(to right,
            #c80f23, #eb2a1e, #f85d14, #f4940f, #ddc015, #aed822,
            #7ddb4e, #57d08a, #42bdbe, #2d97d6, #1d66c6, #143689, #0d1b4d
        );
    }
    .legend-bar-wrap { flex-direction: column; width: 100%; gap: 1px; }
    .legend-labels { flex-direction: row; font-size: 0.45rem; gap: 1px; justify-content: space-between; width: 100%; }
    .legend-labels span { display: inline; }
    .legend-title, .legend-subtitle { font-size: 0.55rem; }
    .legend-title { margin-right: auto; }
    .legend-subtitle { display: none; }

    /* 时间选择器 */
    .time-selector { gap: 0.2rem; padding: 0.3rem 0; }
    .time-selector input[type=range] { flex: 1; }
    .play-btn { width: 28px; height: 22px; font-size: 0.6rem; }

    /* 经纬度标签 — 极小字体 */
    .lon-labels { padding-left: 0 !important; font-size: 0.4rem; gap: 0; }
    .lon-labels span { min-width: 24px; }
    .lat-labels { width: 16px !important; font-size: 0.4rem; padding-right: 1px; }

    /* 头部导航 */
    .header { padding: 0.5rem 0.6rem; }
    .header-content { flex-direction: column; gap: 0.3rem; align-items: flex-start; }
    .logo h1 { font-size: 0.9rem; }
    .logo .subtitle { font-size: 0.65rem; }
    .nav ul { gap: 0.3rem; flex-wrap: wrap; }
    .nav a { font-size: 0.7rem; padding: 0.25rem 0.4rem; border-radius: 6px; }
    .auth { gap: 0.3rem; }

    /* 仪表盘 — 3列→2列 */
    .dashboard-grid { grid-template-columns: repeat(2, 1fr); gap: 0.4rem; }
    .metric-card { padding: 0.5rem 0.6rem; border-radius: 8px; }
    .metric-value { font-size: 1.1rem; }
    .metric-desc { font-size: 0.65rem; }

    /* 预测模式栏 */
    #forecastModeBar { font-size: 0.6rem; padding: 0.3rem 0.4rem; }
    #forecastModeBar input { width: 40px !important; font-size: 0.6rem; }
    #forecastModeBar button { font-size: 0.6rem; padding: 1px 6px; }

    /* 预测卡片 */
    .predict-entry-card { padding: 0.6rem; flex-direction: column; }
    .predict-entry-arrow { display: none; }

    /* 3D地球 */
    #globe3d { aspect-ratio: 1/1; border-radius: 8px; }

    /* 数据源 */
    .data-source-grid { grid-template-columns: 1fr 1fr; gap: 0.4rem; }
    .ds-status { font-size: 0.65rem; }

    /* 按钮/表单 */
    .btn { padding: 0.35rem 0.7rem; font-size: 0.7rem; border-radius: 6px; }
    .input-form .form-row { grid-template-columns: 1fr; gap: 0.4rem; }
    .form-group label { font-size: 0.7rem; }
    .form-group input { padding: 0.4rem; font-size: 0.85rem; }

    /* 通用 */
    body { font-size: 0.85rem; }
    h1 { font-size: 1.2rem; }
    h2 { font-size: 1rem; }
    h3 { font-size: 0.9rem; }
    section { padding: 0.5rem 0; }
}

/* 首页作用域收口：放在旧版页面规则之后，避免历史样式回写新工作台。 */
body.home-page .forecast-header { align-items: center; margin-bottom: 0.45rem; }
body.home-page .forecast-chart-wrap {
    position: relative;
    height: 250px;
    padding: 0.45rem;
    border-radius: 16px;
    overflow: hidden;
    background: var(--surface-alt);
    border: 1px solid var(--border);
}
body.home-page .forecast-cards { grid-template-columns: repeat(3, 1fr); gap: 0.55rem; margin-top: 0.65rem; }
body.home-page .fc-card { padding: 0.75rem; text-align: left; border-radius: 13px; background: var(--card-bg); border-color: var(--border); }
body.home-page .forecast-footer { margin-top: 0.7rem; color: var(--text-soft); }
body.home-page .forecast-refresh-btn { color: var(--brand); background: transparent; border-color: var(--border); border-radius: 9px; }
body.home-page .forecast-refresh-btn:hover { color: var(--bg-main); background: var(--brand); border-color: var(--brand); }

@media (max-width: 640px) {
    body.home-page .header-content { flex-direction: row; align-items: center; }
    body.home-page .nav ul { flex-wrap: nowrap; }
    body.home-page .nav a { padding: 0.35rem 0.55rem; border-radius: 8px; }
    body.home-page .main-content { padding: 0 0.65rem; }
    body.home-page .home-time-controller .play-btn { width: 32px; height: 32px; }
    body.home-page .forecast-cards { grid-template-columns: 1fr; }
    body.home-page section { padding: 0; }
}

/* ================================================================
   [NEW] 核心功能展示：预报数据链路 chips（模型 / 设备 / 输入窗口 / 覆盖率）
   ================================================================ */
.forecast-chain { display: flex; flex-wrap: wrap; gap: .4rem; margin: .5rem 0 .2rem; }
.chain-chip {
    display: inline-flex; align-items: center; gap: .32rem;
    padding: .24rem .58rem; border-radius: 999px;
    border: 1px solid var(--border); background: var(--surface-alt);
    color: var(--text-soft); font-size: .68rem; letter-spacing: .02em;
}
.chain-chip i { color: var(--brand); font-size: .62rem; }
.chain-chip.is-model { border-color: color-mix(in srgb, var(--brand) 40%, transparent); color: var(--text-main); }
.chain-chip.is-warn { border-color: rgba(245, 158, 11, .45); color: #f59e0b; }
.chain-chip.is-warn i { color: #f59e0b; }
#metric-ne .metric-value { font-size: 1.05rem; }