:root {
    /* 浅色主题 - 专业商务风格 */
    --bg: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-elevated: #F1F5F9;
    --border: #E2E8F0;
    --border-hover: #CBD5E1;
    --text: #0F172A;
    --text-muted: #64748B;
    --accent: #0369A1;
    --accent-dim: #0284C7;
    --accent-glow: rgba(3, 105, 161, 0.1);
    --green: #059669;
    --green-dim: #047857;
    --orange: #EA580C;
    --red: #DC2626;
    --font-mono: "JetBrains Mono", "Fira Code", monospace;
    --font-sans: "Noto Sans SC", -apple-system, sans-serif;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-sans);
    font-size: 15px;
    color: var(--text);
    background: var(--bg);
    line-height: 1.5;
    display: flex;
    flex-direction: column;
}

.header {
    background: linear-gradient(135deg, #FFFFFF 0%, #F8FAFC 100%);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--green), var(--accent));
    opacity: 0.8;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.site-logo-link {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

.site-logo {
    display: block;
    width: clamp(168px, 24vw, 240px);
    height: auto;
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    background: linear-gradient(135deg, #0F172A 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
    display: inline-block;
}

.tagline {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    flex-wrap: wrap;
}

.header-nav a {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.3rem 0.5rem;
    border-radius: 6px;
    transition: var(--transition);
}

.header-nav a:hover {
    background: var(--accent-glow);
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    margin-right: 0.5rem;
    font-size: 0.875rem;
    background: var(--bg-elevated);
    padding: 0.25rem;
    border-radius: 6px;
    border: 1px solid var(--border);
}
.lang-switch a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    transition: var(--transition);
    font-weight: 500;
}
.lang-switch a:hover {
    color: var(--accent);
    background: var(--bg-card);
}
.lang-switch a.active {
    font-weight: 600;
    color: var(--text);
    background: var(--bg-card);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}
.lang-sep {
    color: var(--border);
    user-select: none;
    font-weight: 300;
}

.nav-link-with-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.nav-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 0.3rem;
    border-radius: 999px;
    background: var(--red);
    color: #fff;
    font-size: 0.7rem;
    line-height: 1;
    font-family: var(--font-mono);
}

.header-user {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.main {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
    width: 100%;
}

.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-end;
    margin-bottom: 1.5rem;
    padding: 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.filters:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.filter-group label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.filter-group select {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    padding: 0.5rem 0.75rem;
    min-width: 140px;
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    cursor: pointer;
    transition: var(--transition);
}

.filter-group select:hover {
    border-color: var(--accent);
    background: var(--bg-card);
}

.filter-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.btn-reset {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    cursor: pointer;
    margin-left: auto;
    transition: var(--transition);
}

.btn-reset:hover {
    border-color: var(--accent);
    background: var(--accent);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(3, 105, 161, 0.2);
}

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

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    box-shadow: var(--shadow);
    position: relative;
}

.table-wrap::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.3;
}

.price-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.price-table th,
.price-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.price-table th {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    background: var(--bg-elevated);
}

.price-table tbody tr {
    transition: var(--transition);
}

.price-table tbody tr:hover {
    background: var(--bg-elevated);
    transform: scale(1.001);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

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

.col-price {
    text-align: right;
    white-space: nowrap;
}

.price-table td.col-price {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--green);
    font-size: 0.95rem;
}

.price-table .provider {
    font-weight: 500;
    color: var(--text);
}

.price-table .region {
    color: var(--text-muted);
    font-size: 0.85em;
}

.price-table .col-link {
    white-space: nowrap;
}

.price-table .col-link a {
    color: white;
    background: var(--accent);
    text-decoration: none;
    padding: 0.35rem 0.85rem;
    border-radius: 6px;
    transition: var(--transition);
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 500;
}

.price-table .col-link a:hover {
    background: var(--accent-dim);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(3, 105, 161, 0.3);
}

/* 广告位占位，接入 AdSense 后可移除最小高度 */
.ad-slot {
    min-height: 50px;
    margin: 0.5rem 0;
}

.ad-slot-header {
    margin-top: 1rem;
}

.ad-slot-inline {
    margin-bottom: 1rem;
}

.ad-slot-footer {
    margin-bottom: 1rem;
}

.disclaimer {
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* 加载动画 */
.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.footer {
    margin-top: auto;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer p {
    margin: 0;
}

.footer .contact {
    margin-top: 0.5rem;
}

.footer .contact a {
    color: var(--accent);
    text-decoration: none;
}

.footer .contact a:hover {
    text-decoration: underline;
}

.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-muted);
}

.empty-state p {
    margin: 0;
    font-size: 1rem;
}

/* 加载状态 */
.loading-skeleton {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading-row {
    height: 48px;
    background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-elevated) 50%, var(--bg-card) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* 数据徽章 */
.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
}

.badge-primary {
    background: var(--accent-glow);
    border-color: var(--accent);
    color: var(--accent);
}

.badge-success {
    background: rgba(63, 185, 80, 0.15);
    border-color: var(--green);
    color: var(--green);
}

@media (max-width: 768px) {
    .header {
        padding: 1rem;
    }

    .header-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .header-brand {
        width: 100%;
        justify-content: space-between;
    }

    .header-nav {
        width: 100%;
        justify-content: flex-start;
        font-size: 0.85rem;
        gap: 0.5rem;
    }

    .lang-switch {
        font-size: 0.8rem;
        padding: 0.2rem;
    }

    .lang-switch a {
        padding: 0.25rem 0.5rem;
    }

    .logo {
        font-size: 1.25rem;
    }

    .site-logo {
        width: clamp(148px, 44vw, 210px);
    }

    .tagline {
        font-size: 0.8rem;
    }

    .filters {
        flex-direction: column;
        align-items: stretch;
        padding: 1rem;
    }

    .filter-group {
        min-width: 100%;
    }

    .filter-group select {
        width: 100%;
    }

    .btn-reset {
        margin-left: 0;
        width: 100%;
    }

    .price-table th,
    .price-table td {
        padding: 0.5rem 0.6rem;
        font-size: 0.8rem;
    }

    .price-table .hide-mobile {
        display: none;
    }

    .table-wrap {
        border-radius: var(--radius);
    }
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-elevated);
}

::-webkit-scrollbar-thumb {
    background: var(--border-hover);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ========== 新增功能样式 ========== */

/* 搜索栏 */
.filter-group-search {
    flex: 1;
    min-width: 200px;
}

.filter-group-search input {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    padding: 0.5rem 0.75rem;
    width: 100%;
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    transition: var(--transition);
}

.filter-group-search input:hover {
    border-color: var(--accent);
}

.filter-group-search input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.filter-group-search input::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

/* 可排序表头 */
.sortable {
    user-select: none;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.sortable:hover {
    background: var(--bg-elevated) !important;
    color: var(--accent);
}

.sortable.sorted {
    color: var(--accent);
    font-weight: 700;
}

.sort-icon {
    font-size: 0.8em;
    margin-left: 0.25rem;
    display: inline-block;
    min-width: 1em;
}

/* 收藏按钮 */
.btn-favorite {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    color: var(--text-muted);
    transition: var(--transition);
    margin-right: 0.5rem;
    border-radius: 4px;
}

.btn-favorite:hover {
    color: var(--orange);
    transform: scale(1.2);
    background: rgba(234, 88, 12, 0.1);
}

.btn-favorite:active {
    transform: scale(1.1);
}

/* 已收藏的行 */
.favorited {
    background: rgba(234, 88, 12, 0.05) !important;
    border-left: 3px solid var(--orange);
}

.favorited .btn-favorite {
    color: var(--orange);
}

/* 操作列样式优化 */
.col-link {
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.col-link a {
    color: white;
    background: var(--accent);
    text-decoration: none;
    padding: 0.35rem 0.85rem;
    border-radius: 6px;
    transition: var(--transition);
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 500;
}

.col-link a:hover {
    background: var(--accent-dim);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(3, 105, 161, 0.3);
}

/* 结果计数样式 */
.result-count {
    margin-left: auto;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 0;
}

/* 响应式优化 */
@media (max-width: 768px) {
    .filter-group-search {
        min-width: 100%;
    }

    .col-link {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    .btn-favorite {
        font-size: 1rem;
        padding: 0.2rem 0.4rem;
    }
}

/* ========== 分屏布局 ========== */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 1.5rem;
    align-items: start;
}

.split-left {
    min-width: 0; /* 防止表格溢出 */
}

.split-right {
    position: sticky;
    top: 1.5rem;
    max-height: calc(100vh - 3rem);
    overflow-y: auto;
}

/* ========== 对比面板 ========== */
.comparison-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
}

.comparison-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-elevated);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.comparison-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.icon-compare {
    color: var(--accent);
}

.btn-clear-comparison {
    background: none;
    border: none;
    padding: 0.35rem;
    cursor: pointer;
    color: var(--text-muted);
    border-radius: 4px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-clear-comparison:hover {
    background: var(--bg-card);
    color: var(--red);
    transform: scale(1.1);
}

.comparison-content {
    padding: 1.25rem;
    flex: 1;
    overflow-y: auto;
}

/* 空状态 */
.comparison-empty {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--text-muted);
}

.empty-icon {
    color: var(--border-hover);
    margin-bottom: 1rem;
}

.empty-text {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text);
}

.empty-hint {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* 对比卡片 */
.comparison-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.comparison-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    position: relative;
    transition: var(--transition);
}

.comparison-card:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(3, 105, 161, 0.15);
}

.comparison-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 0.75rem;
}

.comparison-card-title {
    flex: 1;
}

.comparison-provider {
    font-weight: 600;
    color: var(--text);
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.comparison-name {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.btn-remove-comparison {
    background: none;
    border: none;
    padding: 0.25rem;
    cursor: pointer;
    color: var(--text-muted);
    border-radius: 4px;
    transition: var(--transition);
    flex-shrink: 0;
}

.btn-remove-comparison:hover {
    background: rgba(220, 38, 38, 0.1);
    color: var(--red);
}

.comparison-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.comparison-spec {
    display: flex;
    flex-direction: column;
}

.spec-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.15rem;
}

.spec-value {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}

.spec-value.highlight-best {
    color: var(--green);
}

.spec-value.highlight-worst {
    color: var(--text-muted);
}

.comparison-price {
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.price-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.price-value {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--green);
}

.price-value.highlight-best {
    color: var(--green);
    background: rgba(5, 150, 105, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

/* 对比表格视图 */
.comparison-table-view {
    display: none; /* 默认隐藏，当有3个以上方案时显示 */
    margin-top: 1rem;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.comparison-table th,
.comparison-table td {
    padding: 0.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.comparison-table th {
    background: var(--bg-elevated);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.comparison-table td {
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.comparison-table .col-provider {
    font-weight: 600;
    color: var(--text);
}

.comparison-table .col-price {
    font-weight: 700;
    color: var(--green);
}

/* 响应式布局 */
@media (max-width: 1200px) {
    .split-layout {
        grid-template-columns: 1fr 350px;
    }
}

@media (max-width: 1024px) {
    .split-layout {
        grid-template-columns: 1fr;
    }
    
    .split-right {
        position: static;
        max-height: none;
        order: -1; /* 移动端对比面板显示在上方 */
    }
    
    .comparison-panel {
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 768px) {
    .comparison-specs {
        grid-template-columns: 1fr;
    }
    
    .comparison-card {
        padding: 0.875rem;
    }
    
    .comparison-content {
        padding: 1rem;
    }
    
    .comparison-empty {
        padding: 2rem 1rem;
    }
}

/* 滚动条样式 */
.comparison-content::-webkit-scrollbar {
    width: 6px;
}

.comparison-content::-webkit-scrollbar-track {
    background: var(--bg-elevated);
}

.comparison-content::-webkit-scrollbar-thumb {
    background: var(--border-hover);
    border-radius: 3px;
}

.comparison-content::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* 动画效果 */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.comparison-card {
    animation: slideInRight 0.3s ease-out;
}

/* 最大对比数量提示 */
.comparison-limit-notice {
    background: rgba(234, 88, 12, 0.1);
    border: 1px solid var(--orange);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: var(--orange);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.comparison-limit-notice svg {
    flex-shrink: 0;
}

/* 修改主容器宽度以适应分屏布局 */
.main {
    max-width: 1400px; /* 从 1200px 增加到 1400px */
}

/* ========== 增强对比可视化 ========== */

/* 差异百分比标签 */
.spec-diff {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
}

.spec-diff.positive {
    color: var(--green);
}

.spec-diff.negative {
    color: var(--red);
}

/* 对比进度条 */
.comparison-bar {
    width: 100%;
    height: 4px;
    background: var(--bg-elevated);
    border-radius: 2px;
    margin-top: 0.35rem;
    overflow: hidden;
}

.comparison-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--green), var(--accent));
    border-radius: 2px;
    transition: width 0.3s ease;
}

.comparison-bar-fill.best {
    background: var(--green);
}

.comparison-bar-fill.good {
    background: var(--accent);
}

.comparison-bar-fill.average {
    background: var(--orange);
}

.comparison-bar-fill.poor {
    background: var(--red);
}

/* 颜色编码徽章 */
.spec-badge {
    display: inline-block;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    margin-left: 0.35rem;
}

.spec-badge.best {
    background: rgba(5, 150, 105, 0.15);
    color: var(--green);
}

.spec-badge.good {
    background: rgba(3, 105, 161, 0.15);
    color: var(--accent);
}

.spec-badge.average {
    background: rgba(234, 88, 12, 0.15);
    color: var(--orange);
}

.spec-badge.poor {
    background: rgba(220, 38, 38, 0.15);
    color: var(--red);
}

/* 对比表格视图 */
.comparison-table-view {
    display: none;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 2px solid var(--border);
}

.comparison-table-view.active {
    display: block;
}

.comparison-table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.comparison-table-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.comparison-table-toggle {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text);
}

.comparison-table-toggle:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
}

.comparison-grid {
    display: grid;
    grid-template-columns: 120px repeat(auto-fit, minmax(150px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.comparison-grid-cell {
    background: var(--bg-card);
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.comparison-grid-cell.header {
    background: var(--bg-elevated);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.comparison-grid-cell.provider-header {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    text-transform: none;
    letter-spacing: normal;
}

.comparison-grid-value {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
}

.comparison-grid-value.highlight {
    color: var(--green);
    background: rgba(5, 150, 105, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    margin: -0.25rem -0.5rem;
}

/* 差异指示器 */
.diff-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

.diff-indicator svg {
    width: 12px;
    height: 12px;
}

.diff-indicator.better {
    color: var(--green);
}

.diff-indicator.worse {
    color: var(--red);
}

.diff-indicator.same {
    color: var(--text-muted);
}

/* 性价比评分 */
.value-score {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.value-score-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.value-score-stars {
    display: flex;
    gap: 0.15rem;
}

.value-score-star {
    width: 14px;
    height: 14px;
    color: var(--orange);
}

.value-score-star.empty {
    color: var(--border-hover);
}

/* 响应式优化 */
@media (max-width: 768px) {
    .comparison-grid {
        grid-template-columns: 100px repeat(auto-fit, minmax(120px, 1fr));
        font-size: 0.8rem;
    }
    
    .comparison-grid-cell {
        padding: 0.5rem;
    }
    
    .comparison-table-view {
        overflow-x: auto;
    }
}

/* ========== 可折叠表格式对比面板 ========== */

/* 对比面板表格模式 */
.comparison-table-mode {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* 对比行 */
.comparison-row {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.comparison-row:hover {
    border-color: var(--accent);
    box-shadow: 0 2px 8px rgba(3, 105, 161, 0.1);
}

/* 对比行头部（始终可见） */
.comparison-row-header {
    display: grid;
    grid-template-columns: 40px 1fr auto 40px;
    align-items: center;
    padding: 0.75rem 1rem;
    cursor: pointer;
    user-select: none;
    gap: 0.75rem;
    background: var(--bg-elevated);
    transition: var(--transition);
}

.comparison-row-header:hover {
    background: var(--bg-card);
}

.comparison-row.expanded .comparison-row-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

/* 展开/收起按钮 */
.comparison-toggle {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: var(--transition);
}

.comparison-row.expanded .comparison-toggle {
    transform: rotate(90deg);
    color: var(--accent);
}

.comparison-toggle svg {
    width: 16px;
    height: 16px;
}

/* 服务器信息 */
.comparison-row-info {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
}

.comparison-row-provider {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.comparison-row-name {
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 快速预览（价格和评分） */
.comparison-row-preview {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.comparison-row-price {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1rem;
    color: var(--green);
    white-space: nowrap;
}

.comparison-row-price.highlight-best {
    background: rgba(5, 150, 105, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.comparison-row-stars {
    display: flex;
    gap: 0.1rem;
}

.comparison-row-stars svg {
    width: 14px;
    height: 14px;
    color: var(--orange);
}

.comparison-row-stars svg.empty {
    color: var(--border-hover);
}

/* 移除按钮 */
.comparison-row-remove {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition);
}

.comparison-row-remove:hover {
    background: rgba(220, 38, 38, 0.1);
    color: var(--red);
}

.comparison-row-remove svg {
    width: 16px;
    height: 16px;
}

/* 对比行详情（可折叠） */
.comparison-row-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.comparison-row.expanded .comparison-row-details {
    max-height: 500px;
}

.comparison-row-details-inner {
    padding: 1rem;
}

/* 详情网格 */
.comparison-details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.comparison-detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.comparison-detail-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comparison-detail-value {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.comparison-detail-value.highlight {
    color: var(--green);
}

/* 详情进度条 */
.comparison-detail-bar {
    width: 100%;
    height: 4px;
    background: var(--bg-elevated);
    border-radius: 2px;
    margin-top: 0.35rem;
    overflow: hidden;
}

.comparison-detail-bar-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s ease;
}

.comparison-detail-bar-fill.best {
    background: var(--green);
}

.comparison-detail-bar-fill.good {
    background: var(--accent);
}

.comparison-detail-bar-fill.average {
    background: var(--orange);
}

.comparison-detail-bar-fill.poor {
    background: var(--red);
}

/* 差异标签 */
.comparison-diff-badge {
    font-size: 0.7rem;
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    font-weight: 600;
}

.comparison-diff-badge.positive {
    background: rgba(5, 150, 105, 0.15);
    color: var(--green);
}

.comparison-diff-badge.negative {
    background: rgba(220, 38, 38, 0.15);
    color: var(--red);
}

/* 操作按钮 */
.comparison-row-actions {
    display: flex;
    gap: 0.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.comparison-action-btn {
    flex: 1;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-card);
    color: var(--text);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
}

.comparison-action-btn:hover {
    border-color: var(--accent);
    background: var(--accent);
    color: white;
}

.comparison-action-btn.primary {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.comparison-action-btn.primary:hover {
    background: var(--accent-dim);
}

/* 全部展开/收起按钮 */
.comparison-expand-all {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 0.75rem;
}

.comparison-expand-all:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
}

.comparison-expand-all svg {
    width: 14px;
    height: 14px;
}

/* 响应式 */
@media (max-width: 768px) {
    .comparison-row-header {
        grid-template-columns: 32px 1fr 32px;
        padding: 0.65rem 0.75rem;
    }
    
    .comparison-row-preview {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.35rem;
    }
    
    .comparison-details-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .comparison-row-actions {
        flex-direction: column;
    }
}

/* ==================== v3.3 列表模式对比样式 ==================== */

/* 对比面板折叠控制 */
.comparison-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    gap: 0.75rem;
}

.comparison-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin: 0;
}

.icon-compare {
    flex-shrink: 0;
}

.comparison-header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-toggle-comparison {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-toggle-comparison:hover {
    background: var(--bg-card);
    border-color: var(--accent);
    color: var(--accent);
}

.toggle-icon {
    font-size: 0.75rem;
    transition: transform 0.2s;
}

.btn-clear-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.btn-clear-comparison:hover {
    background: var(--red);
    border-color: var(--red);
    color: white;
}

/* 对比面板收起状态 */
.comparison-panel.collapsed .comparison-content {
    display: none;
}

.comparison-panel.collapsed {
    height: auto;
}

/* 对比表格容器 */
.comparison-table-wrapper {
    overflow-x: auto;
    padding: 1rem;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    background: var(--bg-card);
}

.comparison-table thead {
    background: var(--bg-elevated);
    position: sticky;
    top: 0;
    z-index: 10;
}

.comparison-table th {
    padding: 0.75rem 0.5rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
    font-size: 0.8125rem;
}

.comparison-table tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background-color 0.15s;
}

.comparison-table tbody tr:hover {
    background: var(--bg-elevated);
}

.comparison-table tbody tr:last-child {
    border-bottom: none;
}

.comparison-table td {
    padding: 0.875rem 0.5rem;
    color: var(--text);
    vertical-align: middle;
}

/* 厂商单元格 */
.comparison-table .provider-cell {
    font-weight: 600;
    color: var(--accent);
}

/* 价格单元格 */
.comparison-table .price-cell {
    font-weight: 700;
    color: var(--green);
    font-size: 0.9375rem;
    white-space: nowrap;
}

/* 操作单元格 */
.comparison-table .action-cell {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: flex-end;
}

.comparison-table .btn-visit {
    padding: 0.375rem 0.75rem;
    background: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: var(--radius);
    font-size: 0.8125rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
    cursor: pointer;
}

.comparison-table .btn-visit:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(3, 105, 161, 0.2);
}

.comparison-table .btn-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.comparison-table .btn-remove:hover {
    background: var(--red);
    border-color: var(--red);
    color: white;
}

/* 空状态样式 */
.comparison-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem;
    text-align: center;
}

.empty-icon {
    color: var(--text-muted);
    opacity: 0.5;
    margin-bottom: 1rem;
}

.empty-text {
    font-size: 1rem;
    color: var(--text);
    margin: 0 0 0.5rem 0;
    font-weight: 500;
}

.empty-hint {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .comparison-header {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }
    
    .comparison-header-actions {
        justify-content: space-between;
    }
    
    .btn-toggle-comparison {
        flex: 1;
        justify-content: center;
    }
    
    .comparison-table-wrapper {
        padding: 0.75rem;
    }
    
    .comparison-table {
        font-size: 0.8125rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 0.5rem 0.35rem;
    }
    
    .comparison-table .action-cell {
        flex-direction: column;
        align-items: stretch;
        gap: 0.35rem;
    }
    
    .comparison-table .btn-visit {
        width: 100%;
        text-align: center;
    }
}

/* 小屏幕优化 */
@media (max-width: 640px) {
    .comparison-table {
        font-size: 0.75rem;
    }
    
    .comparison-table th {
        font-size: 0.75rem;
        padding: 0.5rem 0.25rem;
    }
    
    .comparison-table td {
        padding: 0.65rem 0.25rem;
    }
    
    /* 隐藏部分列以适应小屏幕 */
    .comparison-table th:nth-child(6),
    .comparison-table td:nth-child(6),
    .comparison-table th:nth-child(7),
    .comparison-table td:nth-child(7) {
        display: none;
    }
}

/* 打印样式 */
@media print {
    .comparison-header-actions {
        display: none;
    }
    
    .comparison-table .action-cell {
        display: none;
    }
    
    .comparison-table tbody tr:hover {
        background: transparent;
    }
}

/* ==================== v3.4 滑动模式对比样式 ==================== */

/* 分屏布局 - 动态调整 */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 1.5rem;
    align-items: start;
    transition: grid-template-columns 0.3s ease;
}

/* 对比面板隐藏时，左侧占满 */
.split-layout:has(.comparison-panel.hidden) {
    grid-template-columns: 1fr 0px;
    gap: 0;
}

/* 对比面板 - 滑动效果 */
.comparison-panel {
    position: sticky;
    top: 1.5rem;
    max-height: calc(100vh - 3rem);
    overflow-y: auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    transform: translateX(0);
    opacity: 1;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* 对比面板隐藏状态 */
.comparison-panel.hidden {
    transform: translateX(100%);
    opacity: 0;
    pointer-events: none;
    width: 0;
    min-width: 0;
    padding: 0;
    border: none;
    overflow: hidden;
}

/* 对比面板显示状态 */
.comparison-panel.visible {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
}

/* 浮动切换按钮 */
#floating-toggle-btn {
    position: fixed;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px rgba(3, 105, 161, 0.3);
    cursor: pointer;
    transition: all 0.2s;
}

#floating-toggle-btn:hover {
    background: var(--accent-dark);
    transform: translateY(-50%) scale(1.05);
    box-shadow: 0 6px 16px rgba(3, 105, 161, 0.4);
}

#floating-toggle-btn .icon {
    font-size: 1.25rem;
}

#floating-toggle-btn .count-badge {
    background: white;
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    min-width: 24px;
    text-align: center;
}

/* 对比面板标题栏 */
.comparison-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    gap: 0.75rem;
    flex-shrink: 0;
}

.comparison-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin: 0;
}

.comparison-header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-toggle-comparison {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-toggle-comparison:hover {
    background: var(--bg-card);
    border-color: var(--accent);
    color: var(--accent);
}

.btn-clear-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.btn-clear-comparison:hover {
    background: var(--red);
    border-color: var(--red);
    color: white;
}

/* 修复按钮对齐问题 */
.col-link {
    white-space: nowrap;
}

.col-link .btn-star {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    margin-right: 0.5rem;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 1.125rem;
    cursor: pointer;
    transition: var(--transition);
    vertical-align: middle;
}

.col-link .btn-star:hover {
    border-color: var(--orange);
    color: var(--orange);
    background: rgba(234, 88, 12, 0.1);
}

.col-link .btn-star.star-active {
    border-color: var(--orange);
    color: var(--orange);
    background: rgba(234, 88, 12, 0.1);
}

.col-link .btn-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.375rem 0.75rem;
    background: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    vertical-align: middle;
    cursor: pointer;
}

.col-link .btn-link:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(3, 105, 161, 0.2);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .split-layout {
        grid-template-columns: 1fr 350px;
    }
    
    .split-layout:has(.comparison-panel.hidden) {
        grid-template-columns: 1fr 0px;
    }
}

@media (max-width: 768px) {
    .split-layout {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .split-layout:has(.comparison-panel.hidden) {
        grid-template-columns: 1fr;
    }
    
    .comparison-panel {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 90%;
        max-width: 400px;
        max-height: 100vh;
        border-radius: 0;
        z-index: 1000;
    }
    
    .comparison-panel.hidden {
        transform: translateX(100%);
    }
    
    #floating-toggle-btn {
        right: 1rem;
        padding: 0.65rem;
    }
    
    .comparison-header {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }
    
    .comparison-header-actions {
        justify-content: space-between;
    }
    
    .btn-toggle-comparison {
        flex: 1;
        justify-content: center;
    }
}

/* 小屏幕优化 */
@media (max-width: 640px) {
    .comparison-panel {
        width: 100%;
        max-width: 100%;
    }
    
    .col-link {
        display: flex;
        flex-direction: column;
        gap: 0.35rem;
        align-items: stretch;
    }
    
    .col-link .btn-star {
        width: 100%;
        margin-right: 0;
    }
    
    .col-link .btn-link {
        width: 100%;
    }
}

/* 打印样式 */
@media print {
    #floating-toggle-btn {
        display: none !important;
    }
    
    .comparison-panel.hidden {
        display: none !important;
    }
    
    .btn-toggle-comparison,
    .btn-clear-comparison {
        display: none !important;
    }
}

/* ==================== 联系方式优化样式 ==================== */

.contact-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.contact-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
    font-weight: 500;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: linear-gradient(135deg, #0088cc 0%, #229ED9 100%);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 136, 204, 0.2);
    cursor: pointer;
}

.contact-link:hover {
    background: linear-gradient(135deg, #006699 0%, #1a8ec0 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 136, 204, 0.3);
}

.contact-link:active {
    transform: translateY(0);
}

.contact-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

/* 响应式设计 */
@media (max-width: 640px) {
    .contact-section {
        margin-top: 1rem;
        padding-top: 1rem;
    }
    
    .contact-link {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .contact-icon {
        width: 18px;
        height: 18px;
    }
}

/* 打印样式 */
@media print {
    .contact-section {
        display: none;
    }
}

/* ==================== 浮动联系按钮 ==================== */

.floating-contact-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0088cc 0%, #229ED9 100%);
    color: white;
    border-radius: 50%;
    box-shadow: 0 4px 16px rgba(0, 136, 204, 0.4);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1000;
    animation: float-pulse 2s ease-in-out infinite;
}

.floating-contact-btn:hover {
    background: linear-gradient(135deg, #006699 0%, #1a8ec0 100%);
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(0, 136, 204, 0.5);
}

.floating-contact-btn:active {
    transform: scale(1.05);
}

.floating-contact-icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

/* 浮动脉冲动画 */
@keyframes float-pulse {
    0%, 100% {
        transform: translateY(0);
        box-shadow: 0 4px 16px rgba(0, 136, 204, 0.4);
    }
    50% {
        transform: translateY(-8px);
        box-shadow: 0 8px 24px rgba(0, 136, 204, 0.5);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .floating-contact-btn {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 52px;
        height: 52px;
    }
    
    .floating-contact-icon {
        width: 26px;
        height: 26px;
    }
}

@media (max-width: 640px) {
    .floating-contact-btn {
        bottom: 1rem;
        right: 1rem;
        width: 48px;
        height: 48px;
    }
    
    .floating-contact-icon {
        width: 24px;
        height: 24px;
    }
}

/* 打印样式 */
@media print {
    .floating-contact-btn {
        display: none !important;
    }
}

/* 减少动画（尊重用户偏好） */
@media (prefers-reduced-motion: reduce) {
    .floating-contact-btn {
        animation: none;
    }
    
    .floating-contact-btn:hover {
        transform: none;
    }
}

/* ==========================================================================
   Commercial Refresh (2026-02)
   ========================================================================== */

:root {
    --font-sans: "Plus Jakarta Sans", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.homepage-body {
    background:
        radial-gradient(1100px 460px at 12% -12%, rgba(3, 105, 161, 0.08), transparent 62%),
        radial-gradient(1000px 420px at 88% -18%, rgba(15, 23, 42, 0.08), transparent 64%),
        var(--bg);
}

.homepage-body .header {
    position: sticky;
    top: 0;
    z-index: 120;
    backdrop-filter: blur(14px);
    background: rgba(248, 250, 252, 0.88);
    border-bottom: 1px solid rgba(148, 163, 184, 0.26);
}

.homepage-body .header::before {
    height: 1px;
    opacity: 1;
    background: linear-gradient(90deg, rgba(3, 105, 161, 0.22), rgba(15, 23, 42, 0.1), rgba(3, 105, 161, 0.22));
}

.homepage-body .header-brand {
    gap: 0.9rem;
}

.homepage-body .site-logo {
    width: clamp(172px, 22vw, 232px);
}

.homepage-body .tagline {
    font-size: 0.82rem;
    letter-spacing: 0.01em;
}

.homepage-body .header-nav a {
    font-weight: 600;
    color: #334155;
}

.homepage-body .header-nav a:hover {
    color: #0f172a;
    background: rgba(3, 105, 161, 0.1);
}

.homepage-main {
    padding-top: 1.65rem;
    padding-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
}

.hero-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 1rem;
    padding: 1.2rem;
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.28);
    background:
        linear-gradient(135deg, rgba(248, 250, 252, 0.95), rgba(241, 245, 249, 0.95));
    box-shadow:
        0 1px 2px rgba(15, 23, 42, 0.08),
        0 18px 36px rgba(15, 23, 42, 0.07);
}

.hero-copy {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.hero-kicker {
    margin: 0;
    display: inline-flex;
    align-items: center;
    width: fit-content;
    font-size: 0.76rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #0f172a;
    padding: 0.34rem 0.62rem;
    border-radius: 999px;
    background: rgba(3, 105, 161, 0.1);
    border: 1px solid rgba(3, 105, 161, 0.2);
}

.hero-title {
    margin: 0;
    font-size: clamp(1.6rem, 3.1vw, 2.2rem);
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: #020617;
}

.hero-lede {
    margin: 0;
    color: #334155;
    font-size: 0.98rem;
    max-width: 66ch;
}

.hero-trust-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.hero-trust-row span {
    display: inline-flex;
    align-items: center;
    font-size: 0.76rem;
    color: #334155;
    padding: 0.35rem 0.6rem;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.36);
    background: rgba(255, 255, 255, 0.75);
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
}

.metric-card {
    border-radius: 12px;
    padding: 0.82rem 0.85rem;
    background: rgba(255, 255, 255, 0.84);
    border: 1px solid rgba(148, 163, 184, 0.3);
}

.metric-label {
    margin: 0;
    font-size: 0.75rem;
    color: #64748b;
    letter-spacing: 0.02em;
}

.metric-value {
    margin: 0.28rem 0 0;
    font-size: 1.32rem;
    line-height: 1;
    color: #020617;
    font-weight: 700;
    font-family: var(--font-mono);
}

.homepage-body .filters {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.95rem;
    padding: 1rem;
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.28);
    background: rgba(255, 255, 255, 0.92);
    box-shadow:
        0 1px 2px rgba(15, 23, 42, 0.08),
        0 14px 28px rgba(15, 23, 42, 0.06);
}

.homepage-body .filters:hover {
    border-color: rgba(51, 65, 85, 0.28);
    box-shadow:
        0 1px 2px rgba(15, 23, 42, 0.08),
        0 20px 34px rgba(15, 23, 42, 0.08);
}

.filters-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.filters-title {
    margin: 0;
    font-size: 1.02rem;
    letter-spacing: -0.01em;
    color: #0f172a;
}

.filters-subtitle {
    margin: 0.28rem 0 0;
    color: #64748b;
    font-size: 0.84rem;
}

.homepage-body .result-count {
    margin: 0;
    color: #0f172a;
    font-size: 0.82rem;
    font-weight: 600;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.3);
    background: rgba(241, 245, 249, 0.9);
    padding: 0.38rem 0.68rem;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 0.66rem;
    align-items: end;
}

.homepage-body .filter-group {
    grid-column: span 2;
    gap: 0.32rem;
}

.homepage-body .filter-group-search {
    grid-column: span 3;
    min-width: 0;
}

.filter-actions {
    grid-column: span 1;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
}

.homepage-body .filter-group label {
    text-transform: none;
    letter-spacing: 0.01em;
    font-size: 0.74rem;
    color: #475569;
    font-weight: 600;
}

.homepage-body .filter-group select,
.homepage-body .filter-group-search input {
    min-height: 40px;
    border-radius: 10px;
    border: 1px solid rgba(148, 163, 184, 0.45);
    box-shadow: inset 0 1px 1px rgba(15, 23, 42, 0.02);
}

.homepage-body .filter-group select:hover,
.homepage-body .filter-group-search input:hover {
    border-color: rgba(3, 105, 161, 0.45);
}

.homepage-body .btn-reset {
    margin-left: 0;
    min-height: 40px;
    border-radius: 10px;
    border: 1px solid #0f172a;
    background: #0f172a;
    color: #f8fafc;
    font-weight: 600;
    white-space: nowrap;
    padding: 0.5rem 0.95rem;
}

.homepage-body .btn-reset:hover {
    border-color: #020617;
    background: #020617;
    color: #f8fafc;
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.2);
}

.homepage-body .table-wrap {
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.28);
    background: rgba(255, 255, 255, 0.96);
    box-shadow:
        0 1px 2px rgba(15, 23, 42, 0.08),
        0 16px 28px rgba(15, 23, 42, 0.07);
}

.homepage-body .table-wrap::before {
    display: none;
}

.table-wrap-head {
    padding: 0.7rem 0.9rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.24);
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.9), rgba(248, 250, 252, 0.55));
}

.table-caption {
    margin: 0;
    font-size: 0.78rem;
    color: #64748b;
}

.homepage-body .price-table {
    font-size: 0.88rem;
}

.homepage-body .price-table th {
    position: sticky;
    top: 0;
    z-index: 3;
    background: #f8fafc;
    color: #475569;
}

.homepage-body .price-table tbody tr {
    transition: background-color 0.2s ease;
}

.homepage-body .price-table tbody tr:hover {
    background: rgba(241, 245, 249, 0.86);
    transform: none;
    box-shadow: none;
}

.homepage-body .price-table td.col-price {
    color: #047857;
}

.homepage-body .price-table th.col-link,
.homepage-body .price-table td.col-link {
    display: table-cell;
}

.homepage-body .price-table td.col-link {
    white-space: nowrap;
}

.homepage-body .price-table .col-link a {
    border-radius: 9px;
    font-weight: 600;
}

.homepage-body .disclaimer {
    margin-top: 0;
    color: #64748b;
    font-size: 0.78rem;
}

.homepage-body .footer {
    border-top: 1px solid rgba(148, 163, 184, 0.3);
    background: rgba(248, 250, 252, 0.88);
}

.floating-contact-btn {
    right: 1.3rem;
    bottom: 1.3rem;
    width: 50px;
    height: 50px;
    border-radius: 14px;
    border: 1px solid rgba(15, 23, 42, 0.14);
    background: linear-gradient(145deg, #0f172a, #1e293b);
    box-shadow: 0 12px 22px rgba(15, 23, 42, 0.24);
    animation: none;
}

.floating-contact-btn:hover {
    background: linear-gradient(145deg, #020617, #0f172a);
    transform: translateY(-2px);
    box-shadow: 0 16px 28px rgba(15, 23, 42, 0.26);
}

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

.floating-contact-icon {
    width: 24px;
    height: 24px;
}

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

    .hero-metrics {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .filter-grid {
        grid-template-columns: repeat(8, minmax(0, 1fr));
    }

    .homepage-body .filter-group {
        grid-column: span 2;
    }

    .homepage-body .filter-group-search {
        grid-column: span 4;
    }

    .filter-actions {
        grid-column: span 2;
        justify-content: flex-start;
    }
}

@media (max-width: 768px) {
    .homepage-main {
        padding-top: 1.05rem;
        gap: 0.9rem;
    }

    .hero-panel {
        padding: 0.9rem;
        border-radius: 14px;
    }

    .hero-title {
        font-size: 1.52rem;
    }

    .hero-lede {
        font-size: 0.9rem;
    }

    .hero-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .filter-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .homepage-body .filter-group,
    .homepage-body .filter-group-search,
    .filter-actions {
        grid-column: span 2;
    }

    .filter-actions {
        justify-content: stretch;
    }

    .homepage-body .btn-reset {
        width: 100%;
    }

    .homepage-body .price-table th,
    .homepage-body .price-table td {
        padding: 0.54rem 0.62rem;
    }

    .floating-contact-btn {
        right: 1rem;
        bottom: 1rem;
        width: 46px;
        height: 46px;
        border-radius: 12px;
    }
}