* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #f5f7fc;
    color: #0a0f1c;
    line-height: 1.45;
}

/* ========= 置顶悬浮导航 ========= */
.sticky-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02), 0 1px 0 rgba(0, 0, 0, 0.05);
    transition: all 0.2s;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 28px;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    flex-wrap: wrap;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 38px;
    width: auto;
    max-width: 180px;
    transition: all 0.2s;
    display: block;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #1e2b4f, #1e3a8a);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.3px;
    white-space: nowrap;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu-content {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu-content a {
    text-decoration: none;
    font-weight: 500;
    color: #1f2937;
    transition: color 0.2s;
    font-size: 0.95rem;
}

.nav-menu-content a:hover {
    color: #2563eb;
}

.nav-menu-footer {
    display: none;
}

.menu-toggle {
    display: none;
    font-size: 1.6rem;
    background: none;
    border: none;
    cursor: pointer;
    color: #1f2937;
}

.nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.nav-overlay.active {
    display: block;
    opacity: 1;
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    .logo-img {
        height: 32px;
        width: auto;
        max-width: 140px;
        display: block;
    }
    .logo-text {
        display: none;
    }
    .menu-toggle {
        display: block;
    }
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: white;
        display: flex;
        flex-direction: column;
        padding: 0;
        transition: transform 0.3s ease, opacity 0.3s ease;
        transform: translateX(-100%);
        opacity: 0;
        z-index: 999;
    }
    .nav-menu.active {
        transform: translateX(0);
        opacity: 1;
    }
    
    .nav-menu-content {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: center;
        width: 100%;
        padding: 0 20px;
    }
    
    .nav-menu-content a {
        font-size: 1.3rem;
        font-weight: 500;
        padding: 1.1rem 0;
        color: #1f2937;
        text-decoration: none;
        border-bottom: 1px solid #f3f4f6;
        transition: all 0.2s;
    }
    .nav-menu-content a:hover {
        color: #2563eb;
        padding-left: 10px;
    }
    
    .nav-menu-footer {
        text-align: center;
        padding: 2rem 0;
    }
    
    .nav-menu-close {
        width: 56px;
        height: 56px;
        border: none;
        background: #f3f4f6;
        border-radius: 50%;
        cursor: pointer;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        color: #374151;
        transition: all 0.3s;
    }
    
    .nav-menu-close:hover {
        background: #e5e7eb;
        transform: scale(1.1);
    }
}

/* Hero区域 + 蒙层 */
.hero {
    position: relative;
    margin: 32px 0 48px;
    border-radius: 32px;
    overflow: hidden;
    background: linear-gradient(135deg, #1e2b4f 0%, #2563eb 100%);
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: none;
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
    padding: 64px 48px;
    color: white;
}
.hero-tag {
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(8px);
    display: inline-block;
    padding: 6px 18px;
    border-radius: 40px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 20px;
    border: 1px solid rgba(255,255,255,0.3);
}
.hero-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}
.hero-category-tag {
    background: rgba(37, 99, 235, 0.8);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    backdrop-filter: blur(4px);
    transition: all 0.2s;
}
.hero-category-tag:hover {
    background: rgba(37, 99, 235, 1);
    transform: translateY(-2px);
}
.hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    width: 100%;
}
.hero p {
    font-size: 1.1rem;
    opacity: 0.9;
    width: 100%;
}
@media (max-width: 768px) {
    .hero-content {
        padding: 28px 20px;
    }
    .hero h1 {
        font-size: 1.75rem;
        line-height: 1.2;
    }
    .hero p {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    .hero-tag {
        font-size: 0.7rem;
        padding: 5px 12px;
    }
    .hero-categories {
        gap: 8px;
        margin-top: 16px;
    }
    .hero-category-tag {
        font-size: 0.75rem;
        padding: 5px 12px;
    }
}

/* 榜单区域 */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    margin: 48px 0 28px 0;
}
.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.3px;
    border-left: 6px solid #2563eb;
    padding-left: 18px;
}

.section-header-center {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 48px 0 28px 0;
}

.section-title-center {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.3px;
    color: #1e2b4f;
    text-align: center;
    position: relative;
    padding: 0 20px;
}

.section-title-center::before,
.section-title-center::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #1e3a8a);
    border-radius: 2px;
}

.section-title-center::before {
    right: 100%;
}

.section-title-center::after {
    left: 100%;
}

@media (max-width: 768px) {
    .section-header {
        margin: 24px 0 16px 0;
    }
    
    .section-title {
        font-size: 1.3rem;
        padding-left: 12px;
        border-left-width: 4px;
    }
    
    .section-header-center {
        margin: 24px 0 16px 0;
    }
    
    .section-title-center {
        font-size: 1.2rem;
        padding: 0 15px;
    }
    
    .section-title-center::before,
    .section-title-center::after {
        width: 30px;
        height: 2px;
    }
    
    .hero {
        margin: 12px 0 16px;
        border-radius: 16px;
    }
    
    .brand-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-bottom: 20px;
    }
    
    .brand-card {
        padding: 16px;
        border-radius: 20px;
    }
    
    .card-row {
        flex-direction: column;
        gap: 12px;
    }
    
    .brand-logo {
        width: 100%;
        aspect-ratio: 16/9;
    }
    
    .brand-name {
        font-size: 1.2rem;
    }
    
    .load-more-btn-wrapper {
        display: none;
    }
}

.hero {
    margin: 16px 0 24px;
    border-radius: 20px;
}

/* 每行2个品牌卡片网格 */
.brand-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    margin-bottom: 32px;
}
.brand-card {
    background: white;
    border-radius: 28px;
    padding: 24px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.03), 0 2px 4px rgba(0, 0, 0, 0.02);
    transition: all 0.25s;
    border: 1px solid #eef2f9;
    display: flex;
    flex-direction: column;
}
.brand-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 30px -12px rgba(0, 0, 0, 0.1);
    border-color: #dfe7f0;
}
.card-row {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}
.brand-logo {
    width: 128px;
    aspect-ratio: 16/9;
    background: #f0f4fa;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    flex-shrink: 0;
    overflow: hidden;
    object-fit: cover;
}
.brand-info {
    flex: 1;
}
.rank-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 800;
    background: #eef2ff;
    padding: 4px 14px;
    border-radius: 40px;
    font-size: 0.8rem;
    color: #1e40af;
    margin-bottom: 10px;
}
.brand-name {
    font-size: 1.45rem;
    font-weight: 700;
    margin: 4px 0 2px;
}
.brand-aka {
    font-size: 0.7rem;
    color: #6c7a91;
    margin-bottom: 10px;
}
.brand-desc {
    font-size: 0.85rem;
    color: #334155;
    line-height: 1.45;
    margin: 12px 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.brand-website {
    margin: 6px 0;
    font-size: 0.75rem;
}
.brand-website a {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
}
.single-score {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid #edf2f7;
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.score-number {
    background: #ecfdf5;
    padding: 5px 12px;
    border-radius: 30px;
    color: #059669;
    font-weight: 700;
}
/* 加载更多按钮（仅pc可见） */
.load-more-btn-wrapper {
    text-align: center;
    margin: 20px 0 48px;
}
.btn-more {
    background: white;
    border: 1px solid #cbd5e1;
    padding: 12px 36px;
    border-radius: 60px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.95rem;
    color: #1f2937;
}
.btn-more:hover {
    background: #2563eb;
    color: white;
    border-color: #2563eb;
}

@media (max-width: 768px) {
    .load-more-btn-wrapper {
        margin: 16px 0 32px;
    }
    
    .btn-more {
        width: 100%;
        padding: 14px 24px;
        font-size: 0.9rem;
        border-radius: 12px;
    }
}
.mobile-only-load-trigger {
    display: none;
}
/* 关联榜单2卡片 */
.rec-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    margin: 40px 0 56px;
}
.rec-card-v2 {
    background: white;
    border-radius: 28px;
    padding: 24px;
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.02);
    border: 1px solid #edf2f9;
    transition: all 0.2s;
}
.rec-card-v2 h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.rec-desc {
    font-size: 0.85rem;
    color: #5b6e8c;
    margin-bottom: 20px;
    border-left: 3px solid #2563eb;
    padding-left: 12px;
}
.rec-list {
    margin: 16px 0 20px;
}
.rec-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #eff3f8;
    font-size: 0.9rem;
}
.rec-list-rank {
    font-weight: 700;
    color: #1e293b;
    min-width: 48px;
}
.rec-list-name {
    flex: 1;
    font-weight: 500;
    margin-left: 12px;
}
.rec-list-score {
    font-size: 0.8rem;
    background: #f1f5f9;
    padding: 2px 10px;
    border-radius: 30px;
}
.rec-btn {
    background: transparent;
    border: 1px solid #cbd5e6;
    padding: 8px 20px;
    border-radius: 40px;
    font-weight: 500;
    cursor: pointer;
    transition: 0.2s;
    font-size: 0.8rem;
    margin-top: 8px;
}
.rec-btn:hover {
    background: #f0f4fe;
    border-color: #2563eb;
}
@media (max-width: 768px) {
    .brand-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-bottom: 24px;
    }
    
    .brand-card {
        padding: 16px;
        border-radius: 20px;
    }
    
    .card-row {
        flex-direction: column;
        gap: 12px;
    }
    
    .brand-logo {
        width: 100%;
        height: 120px;
        border-radius: 12px;
        flex-shrink: 0;
    }
    
    .brand-info {
        width: 100%;
    }
    
    .rank-badge {
        font-size: 0.75rem;
        padding: 3px 10px;
    }
    
    .brand-name {
        font-size: 1.2rem;
        margin: 2px 0 1px;
    }
    
    .brand-aka {
        font-size: 0.65rem;
        margin-bottom: 8px;
    }
    
    .brand-desc {
        font-size: 0.8rem;
        margin: 8px 0 6px;
        -webkit-line-clamp: 2;
    }
    
    .brand-website {
        font-size: 0.7rem;
    }
    
    .single-score {
        margin-top: 10px;
        padding-top: 10px;
        font-size: 0.85rem;
    }
    
    .score-number {
        padding: 4px 10px;
        font-size: 0.85rem;
     }
 }
 
 @media (max-width: 768px) {
     .rec-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        margin: 24px 0 32px;
    }
    
    .rec-card-v2 {
        padding: 16px;
        border-radius: 20px;
    }
    
    .rec-card-v2 h3 {
        font-size: 1.15rem;
        margin-bottom: 6px;
    }
    
    .rec-desc {
        font-size: 0.8rem;
        margin-bottom: 12px;
        padding-left: 10px;
    }
    
    .rec-list {
        margin: 12px 0 16px;
    }
    
    .rec-list-item {
        padding: 8px 0;
        font-size: 0.85rem;
    }
    
    .rec-list-rank {
        font-size: 0.85rem;
        min-width: 36px;
    }
    
    .rec-list-name {
        font-size: 0.85rem;
    }
    
    .rec-list-score {
        font-size: 0.75rem;
        padding: 2px 8px;
    }
    
    .rec-btn {
        padding: 8px 16px;
        font-size: 0.8rem;
        width: 100%;
    }
 }
footer {
    background: #0f172a;
    color: #cbd5e1;
    padding: 48px 0 24px;
    border-radius: 32px 32px 0 0;
    margin-top: 40px;
}
.footer-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 32px;
}
.footer-col {
    flex: 1;
    min-width: 150px;
}
.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 12px;
}
.footer-col h4 {
    color: white;
    margin-bottom: 16px;
    font-size: 1rem;
}
.footer-col ul {
    list-style: none;
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul li a {
    color: #cbd5e1;
    text-decoration: none;
    font-size: 0.85rem;
}
.copyright {
    text-align: center;
    padding-top: 28px;
    border-top: 1px solid #1e293b;
    margin-top: 32px;
    font-size: 0.75rem;
    color: #94a3b8;
}
.copyright a {
    color: #3b82f6;
    text-decoration: none;
    transition: color 0.2s ease;
}
.copyright a:hover {
    color: #60a5fa;
    text-decoration: underline;
}

@media (max-width: 768px) {
    footer {
        padding: 32px 0 20px;
        border-radius: 24px 24px 0 0;
        margin-top: 24px;
    }
    
    .footer-grid {
        gap: 24px;
    }
    
    .footer-logo {
        font-size: 1.2rem;
    }
    
    .footer-col p {
        font-size: 0.8rem;
    }
    
    .footer-col div {
        font-size: 0.8rem;
    }
    
    .copyright {
        padding-top: 20px;
        margin-top: 24px;
        font-size: 0.7rem;
        padding-left: 12px;
        padding-right: 12px;
    }
    
    .footer-nav-links {
        display: none;
    }
}

/* ========= top10-brand-list.html 页面样式 ========= */

/* Hero区域样式覆盖 */
.hero {
    background: linear-gradient(135deg, #1f2937 0%, #374151 50%, #111827 100%) !important;
}

/* 瀑布流布局 */
.waterfall-grid {
    column-count: 1;
    column-gap: 20px;
    margin: 24px 0;
}

@media (min-width: 768px) {
    .waterfall-grid {
        column-count: 2;
        column-gap: 28px;
    }
}

@media (min-width: 1024px) {
    .waterfall-grid {
        column-count: 3;
        column-gap: 32px;
    }
}

.waterfall-card {
    break-inside: avoid;
    margin-bottom: 20px;
    background: white;
    border-radius: 24px;
    padding: 20px;
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.02);
    border: 1px solid #edf2f9;
    transition: all 0.25s;
}

.waterfall-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
}

.waterfall-header {
    margin-bottom: 16px;
}

.waterfall-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1e2b4f;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.waterfall-desc {
    font-size: 0.85rem;
    color: #5b6e8c;
    border-left: 3px solid #2563eb;
    padding-left: 12px;
}

.waterfall-list {
    margin-bottom: 16px;
}

.waterfall-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #eff3f8;
    font-size: 0.9rem;
}

.waterfall-rank {
    font-weight: 700;
    color: #1e293b;
    min-width: 48px;
}

.waterfall-name {
    flex: 1;
    font-weight: 500;
    margin-left: 12px;
}

.waterfall-score {
    font-size: 0.8rem;
    background: #ecfdf5;
    color: #059669;
    padding: 3px 10px;
    border-radius: 30px;
    font-weight: 600;
}

.waterfall-footer {
    text-align: center;
}

.waterfall-btn {
    display: inline-block;
    text-align: center;
    background: transparent;
    border: 1px solid #cbd5e6;
    padding: 10px 24px;
    border-radius: 40px;
    font-weight: 500;
    cursor: pointer;
    transition: 0.2s;
    font-size: 0.85rem;
    color: #2563eb;
    text-decoration: none;
}

.waterfall-btn:hover {
    background: #f0f4fe;
    border-color: #2563eb;
}

/* 标签筛选区域 */
.filter-section {
    margin-bottom: 32px;
}

.filter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.filter-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e2b4f;
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.filter-tag {
    background: white;
    border: 1px solid #e2e8f0;
    padding: 8px 18px;
    border-radius: 30px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    color: #475569;
}

.filter-tag.active {
    background: #2563eb;
    border-color: #2563eb;
    color: white;
}

.filter-tag:hover {
    border-color: #2563eb;
    color: #2563eb;
}

.filter-tag.active:hover {
    color: white;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #94a3b8;
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 0.95rem;
}

/* top10-brand-list.html 移动端适配 */
@media (max-width: 768px) {
    .waterfall-card {
        padding: 16px;
        border-radius: 16px;
    }

    .waterfall-title {
        font-size: 1.15rem;
    }

    .waterfall-desc {
        font-size: 0.8rem;
        padding-left: 10px;
    }

    .waterfall-item {
        padding: 8px 0;
        font-size: 0.85rem;
    }

    .waterfall-rank {
        min-width: 36px;
    }

    .waterfall-score {
        font-size: 0.75rem;
        padding: 2px 8px;
    }

    .waterfall-btn {
        display: block;
        width: 100%;
        padding: 12px 20px;
        border-radius: 12px;
    }

    .filter-section {
        margin-bottom: 24px;
    }

    .filter-title {
        font-size: 1rem;
    }

    .filter-tag {
        padding: 6px 14px;
        font-size: 0.8rem;
    }
}


/* ========= about.html 页面样式 ========= */
.page-header {
    background: linear-gradient(135deg, #1f2937 0%, #374151 50%, #111827 100%);
    padding: 60px 0;
    text-align: center;
    color: white;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.about-section {
    padding: 60px 0;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-content h2 {
    font-size: 1.8rem;
    color: #1e2b4f;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 16px;
}

.about-content h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #1f2937, #374151);
    border-radius: 2px;
}

.about-content p {
    color: #4a5568;
    line-height: 1.8;
    margin-bottom: 20px;
}

.team-section {
    padding: 60px 0;
    background: #f8fafc;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 40px;
}

.team-card {
    background: white;
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.team-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.team-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2.5rem;
    color: white;
}

.team-card h3 {
    font-size: 1.3rem;
    color: #1e2b4f;
    margin-bottom: 8px;
}

.team-card .position {
    color: #374151;
    font-weight: 500;
    margin-bottom: 12px;
}

.team-card p {
    color: #718096;
    font-size: 0.9rem;
    line-height: 1.6;
}

.timeline-section {
    padding: 60px 0;
}

.timeline {
    max-width: 800px;
    margin: 40px auto 0;
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #1f2937, #374151);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -33px;
    top: 0;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #374151;
    border: 4px solid white;
    box-shadow: 0 0 0 2px #374151;
}

.timeline-year {
    color: #374151;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.timeline-content h3 {
    font-size: 1.2rem;
    color: #1e2b4f;
    margin-bottom: 8px;
}

.timeline-content p {
    color: #718096;
    line-height: 1.6;
}

.values-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
    color: white;
}

.values-section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 40px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.value-item {
    text-align: center;
    padding: 24px;
}

.value-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.value-item h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.value-item p {
    opacity: 0.9;
    line-height: 1.6;
}

/* ========= contact.html 页面样式 ========= */
.contact-section {
    padding: 60px 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info {
    padding: 40px;
    background: #f8fafc;
    border-radius: 24px;
}

.contact-info h2 {
    font-size: 1.8rem;
    color: #1e2b4f;
    margin-bottom: 24px;
}

.contact-info p {
    color: #718096;
    line-height: 1.8;
    margin-bottom: 32px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 24px;
}

.info-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    margin-right: 16px;
    flex-shrink: 0;
}

.info-content h4 {
    font-size: 1rem;
    color: #1e2b4f;
    margin-bottom: 4px;
}

.info-content p {
    color: #718096;
    margin: 0;
    font-size: 0.95rem;
}

.info-content a {
    color: #374151;
    text-decoration: none;
}

.info-content a:hover {
    text-decoration: underline;
}

.social-links {
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid #e2e8f0;
}

.social-links h4 {
    font-size: 1rem;
    color: #1e2b4f;
    margin-bottom: 16px;
}

.social-icons {
    display: flex;
    gap: 12px;
}

.social-icon {
    width: 44px;
    height: 44px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #718096;
    font-size: 1.2rem;
    transition: all 0.3s;
    text-decoration: none;
}

.social-icon:hover {
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
    color: white;
    border-color: transparent;
    transform: translateY(-4px);
}

.contact-form-wrapper {
    padding: 40px;
    background: white;
    border-radius: 24px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.contact-form-wrapper h2 {
    font-size: 1.8rem;
    color: #1e2b4f;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 0.95rem;
    font-weight: 500;
    color: #1e2b4f;
    margin-bottom: 8px;
}

.form-group label .required {
    color: #374151;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    color: #1e2b4f;
    transition: all 0.3s;
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: #374151;
    box-shadow: 0 0 0 3px rgba(55, 65, 81, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.btn-submit {
    width: 100%;
    padding: 16px 32px;
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(55, 65, 81, 0.3);
}

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

.map-section {
    padding: 60px 0;
    background: #f8fafc;
}

.map-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.map-placeholder {
    height: 300px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #a0aec0;
    font-size: 1.2rem;
}

.map-info {
    padding: 32px;
}

.map-info h3 {
    font-size: 1.3rem;
    color: #1e2b4f;
    margin-bottom: 16px;
}

.map-info p {
    color: #718096;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.map-info i {
    color: #374151;
    width: 20px;
}

.faq-section {
    padding: 60px 0;
}

.faq-grid {
    max-width: 800px;
    margin: 40px auto 0;
}

.faq-item {
    background: white;
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid #e2e8f0;
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
}

.faq-question h3 {
    font-size: 1.1rem;
    color: #1e2b4f;
    margin: 0;
}

.faq-question i {
    color: #374151;
    transition: transform 0.3s;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding-top: 16px;
    color: #718096;
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    display: block;
}

/* BEACT综合指数模块 */
.beact-section {
    padding: 60px 0;
    background: #fff;
}

.beact-intro {
    color: #5e6f8d;
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.beact-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.beact-card {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 16px;
    padding: 30px 20px;
    text-align: center;
    color: #fff;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.beact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #e94560, #ff6b6b);
}

.beact-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(26, 26, 46, 0.3);
}

.beact-letter {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 800;
    margin: 0 auto 20px;
    box-shadow: 0 8px 20px rgba(233, 69, 96, 0.4);
}

.beact-content h3 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: #fff;
}

.beact-content p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
    margin: 0;
}

.beact-note {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 20px 24px;
    background: #f8fafc;
    border-radius: 12px;
    border-left: 4px solid #e94560;
    color: #5e6f8d;
    font-size: 0.95rem;
    line-height: 1.7;
}

.beact-note i {
    color: #e94560;
    font-size: 1.2rem;
    margin-top: 2px;
    flex-shrink: 0;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .page-header {
        padding: 40px 20px;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .about-section, .team-section, .timeline-section, .values-section, .beact-section {
        padding: 40px 0;
    }
    
    .about-content h2 {
        font-size: 1.5rem;
    }
    
    .contact-section, .map-section, .faq-section {
        padding: 40px 0;
    }
    
    .beact-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .beact-card {
        padding: 24px 16px;
        display: flex;
        align-items: center;
        text-align: left;
        gap: 20px;
    }
    
    .beact-letter {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        margin: 0;
        flex-shrink: 0;
    }
    
    .beact-content {
        flex: 1;
    }
    
    .beact-content h3 {
        font-size: 1rem;
        margin-bottom: 6px;
    }
    
    .beact-content p {
        font-size: 0.85rem;
    }
    
    .beact-note {
        flex-direction: column;
        gap: 8px;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .contact-info, .contact-form-wrapper {
        padding: 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-info h2, .contact-form-wrapper h2 {
        font-size: 1.5rem;
    }
}

/* ==================== 轻量化 About Page 样式 ==================== */

/* 关于品牌介绍卡片 */
.about-intro-card {
    background: #fff;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    margin-bottom: 60px;
}

.about-intro-card p {
    font-size: 1.05rem;
    line-height: 1.9;
    color: #5e6f8d;
    margin-bottom: 16px;
}

.about-intro-card p:last-child {
    margin-bottom: 0;
}

/* BEACT 简介文本 */
.beact-intro-text {
    text-align: center;
    margin-bottom: 30px;
    color: #5e6f8d;
    font-size: 1.05rem;
}

/* BEACT 简化网格 */
.beact-simple-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 60px;
}

.beact-simple-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: #fff;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.beact-simple-item .beact-letter {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 10px;
    background: #e94560;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 700;
}

.beact-info {
    flex: 1;
    min-width: 0;
}

.beact-info strong {
    display: block;
    font-size: 0.95rem;
    color: #1e293b;
    margin-bottom: 4px;
}

.beact-info small {
    display: block;
    font-size: 0.8rem;
    color: #94a3b8;
    line-height: 1.5;
}

/* 使命愿景卡片 */
.mission-vision-card {
    background: #fff;
    border-radius: 12px;
    padding: 48px 40px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    margin-bottom: 60px;
}

.mission-vision-card h3 {
    font-size: 1.6rem;
    color: #1e293b;
    margin-bottom: 12px;
}

.mission-vision-card p {
    font-size: 1rem;
    color: #94a3b8;
    font-style: italic;
}

/* 价值观简化网格 */
.values-simple-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 60px;
}

.value-simple-item {
    background: #fff;
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.value-simple-item i {
    font-size: 2rem;
    color: #e94560;
    margin-bottom: 16px;
}

.value-simple-item h3 {
    font-size: 1.3rem;
    color: #1e293b;
    margin-bottom: 6px;
}

.value-simple-item p {
    font-size: 0.9rem;
    color: #94a3b8;
}

/* 平台定位简化网格 */
.positioning-simple-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 60px;
}

.positioning-simple-item {
    background: #fff;
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.positioning-simple-item i {
    font-size: 2rem;
    color: #e94560;
    margin-bottom: 16px;
}

.positioning-simple-item h3 {
    font-size: 1.1rem;
    color: #1e293b;
    margin-bottom: 10px;
}

.positioning-simple-item p {
    font-size: 0.85rem;
    color: #64748b;
    line-height: 1.6;
}

/* 联系卡片 */
.contact-simple-card {
    display: flex;
    justify-content: center;
    gap: 48px;
    background: #fff;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    margin-bottom: 60px;
}

.contact-simple-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.contact-simple-item i {
    font-size: 1.2rem;
    color: #e94560;
}

.contact-simple-item span {
    font-size: 1rem;
    color: #5e6f8d;
}

/* 移动端响应式 */
@media (max-width: 768px) {
    .about-intro-card {
        padding: 24px;
        margin-bottom: 40px;
    }
    
    .about-intro-card p {
        font-size: 0.95rem;
        line-height: 1.8;
    }
    
    .beact-simple-grid {
        grid-template-columns: 1fr;
        margin-bottom: 40px;
    }
    
    .beact-simple-item {
        padding: 16px;
    }
    
    .mission-vision-card {
        padding: 32px 24px;
        margin-bottom: 40px;
    }
    
    .mission-vision-card h3 {
        font-size: 1.3rem;
    }
    
    .values-simple-grid,
    .positioning-simple-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-bottom: 40px;
    }
    
    .contact-simple-card {
        flex-direction: column;
        gap: 20px;
        padding: 24px;
        margin-bottom: 40px;
    }
    
    .contact-simple-item {
        justify-content: center;
    }
}

/* 移动端响应式 - About Page */
@media (max-width: 768px) {
    .about-hero {
        padding: 80px 0 60px;
    }
    
    .about-hero h1 {
        font-size: 2rem;
    }
    
    .about-tagline {
        font-size: 1rem;
    }
    
    .about-section {
        padding: 60px 0;
    }
    
    .about-intro {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-intro.reverse {
        direction: ltr;
    }
    
    .about-intro-content h2 {
        font-size: 1.8rem;
    }
    
    .about-text p {
        font-size: 1rem;
    }
    
    .about-visual-card {
        padding: 40px;
    }
    
    .about-visual-card i {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-desc {
        font-size: 1rem;
    }
    
    .beact-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .beact-card {
        padding: 24px 20px;
        display: flex;
        align-items: center;
        text-align: left;
        gap: 20px;
    }
    
    .beact-letter {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        margin: 0;
        flex-shrink: 0;
    }
    
    .beact-content {
        flex: 1;
    }
    
    .beact-content h3 {
        font-size: 1rem;
        margin-bottom: 4px;
    }
    
    .beact-content p {
        font-size: 0.85rem;
    }
    
    .mission-main, .vision-main {
        font-size: 1.8rem;
    }
    
    .mission-sub, .vision-sub {
        font-size: 1rem;
    }
    
    .values-grid, .positioning-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .value-card, .positioning-card {
        padding: 32px 24px;
    }
    
    .value-icon, .positioning-icon {
        width: 60px;
        height: 60px;
    }
    
    .value-icon i, .positioning-icon i {
        font-size: 2rem;
    }
    
    .about-cta {
        padding: 60px 0;
    }
    
    .cta-content h2 {
        font-size: 1.8rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 16px;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        text-align: center;
    }
}