/* ===== 全局重置 & 基础 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0D3B66;
    --primary-light: #1A5A7A;
    --primary-dark: #082A47;
    --secondary: #2E8B8B;
    --secondary-light: #3AA8A8;
    --accent: #E8A838;
    --bg-light: #F5F7FA;
    --bg-white: #FFFFFF;
    --bg-gray: #F0F2F5;
    --text-dark: #1E2A3A;
    --text-muted: #5A6A7A;
    --shadow: 0 8px 30px rgba(13, 59, 102, 0.10);
    --shadow-hover: 0 12px 40px rgba(13, 59, 102, 0.18);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 滚动渐入动画 ===== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 导航栏（高度100px） ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition);
    height: 100px;
    display: flex;
    align-items: center;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 100%;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    height: 100%;
}

.nav-brand img {
    height: 90px;
    width: auto;
    display: block;
}

.nav-brand .brand-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
}
.nav-brand .brand-sub {
    font-weight: 300;
    color: var(--text-muted);
    font-size: 16px;
    margin-left: 4px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    height: 100%;
}
.nav-links::-webkit-scrollbar {
    display: none;
}

.nav-links li a {
    padding: 14px 18px;
    border-radius: 40px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
    white-space: nowrap;
    cursor: pointer;
    display: block;
}
.nav-links li a:hover {
    color: var(--primary);
    background: rgba(13, 59, 102, 0.06);
}
.nav-links li a.active {
    color: #fff;
    background: var(--primary);
    box-shadow: 0 4px 12px rgba(13, 59, 102, 0.25);
}

.nav-contact {
    position: relative;
    flex-shrink: 0;
    height: 100%;
    display: flex;
    align-items: center;
    margin-left: 6px;
}

.contact-toggle {
    background: none;
    border: none;
    color: var(--primary);
    font-size: 15px;
    font-weight: 600;
    padding: 14px 18px;
    border-radius: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
    height: 56px;
}
.contact-toggle i {
    font-size: 20px;
    color: var(--secondary);
}
.contact-toggle:hover {
    background: rgba(13, 59, 102, 0.06);
}

.contact-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--bg-white);
    box-shadow: var(--shadow-hover);
    border-radius: var(--radius);
    padding: 18px 24px;
    min-width: 260px;
    display: none;
    flex-direction: column;
    gap: 12px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    z-index: 1001;
}
.contact-dropdown.open {
    display: flex;
}
.contact-dropdown .contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-dark);
    white-space: nowrap;
}
.contact-dropdown .contact-item i {
    width: 20px;
    color: var(--secondary);
    font-size: 16px;
    text-align: center;
}
.contact-dropdown .contact-item a {
    color: var(--primary);
}
.contact-dropdown .contact-item a:hover {
    text-decoration: underline;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 28px;
    color: var(--primary);
    cursor: pointer;
    padding: 8px 12px;
    height: 100%;
    align-items: center;
}

/* ===== 响应式适配 ===== */
@media (max-width: 820px) {
    .nav-toggle {
        display: flex;
    }
    .nav-links {
        position: absolute;
        top: 100px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(14px);
        flex-direction: column;
        padding: 16px 24px 24px;
        gap: 4px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
        border-bottom: 1px solid rgba(0, 0, 0, 0.04);
        display: none;
        max-height: 70vh;
        overflow-y: auto;
        height: auto;
        align-items: stretch;
    }
    .nav-links.open {
        display: flex;
    }
    .nav-links li a {
        padding: 16px 20px;
        width: 100%;
        text-align: center;
        font-size: 16px;
        border-radius: 12px;
    }
    .nav-links li a.active {
        background: var(--primary);
        color: #fff;
    }
    .contact-toggle span {
        display: none;
    }
    .contact-toggle {
        padding: 12px 16px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .nav-brand img {
        height: 60px;
    }
    .nav-brand .brand-text {
        font-size: 18px;
    }
    .nav-brand .brand-sub {
        font-size: 13px;
    }
    .contact-dropdown {
        right: -10px;
        min-width: 200px;
        padding: 14px 18px;
    }
    .contact-dropdown .contact-item {
        font-size: 13px;
        white-space: normal;
    }
}

/* ===== 页面内容顶部间距 ===== */
#home {
    padding-top: 100px;
}
.page-wrapper {
    padding-top: 100px;
    min-height: 60vh;
}

/* ===== 通用组件 ===== */
.section-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    position: relative;
}

.section-title .highlight {
    color: var(--secondary);
}

.section-sub {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 640px;
    margin-bottom: 40px;
    line-height: 1.7;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header .section-sub {
    margin-left: auto;
    margin-right: auto;
}

.badge {
    display: inline-block;
    background: rgba(46, 139, 139, 0.12);
    color: var(--secondary);
    font-size: 13px;
    font-weight: 600;
    padding: 4px 16px;
    border-radius: 40px;
    letter-spacing: 0.3px;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 60px;
    font-weight: 600;
    font-size: 15px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 16px rgba(13, 59, 102, 0.20);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(13, 59, 102, 0.30);
}

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

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    box-shadow: none;
}

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 8px 28px rgba(13, 59, 102, 0.25);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

@media (max-width: 992px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }
}

/* ===== 卡片通用 ===== */
.card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.02);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.card-icon {
    font-size: 36px;
    color: var(--secondary);
    margin-bottom: 16px;
    display: inline-block;
}

.card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}

.card p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.7;
}

.card .tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--secondary);
    background: rgba(46, 139, 139, 0.10);
    padding: 2px 12px;
    border-radius: 40px;
    margin-top: 8px;
}

.card.clickable {
    cursor: pointer;
}

/* ===== 首页 Hero ===== */
#home .hero {
    padding: 60px 0 50px;
    background: linear-gradient(135deg, #F0F6FA 0%, #E6EEF4 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
    position: relative;
    overflow: hidden;
}

#home .hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(46, 139, 139, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

#home .hero .container {
    position: relative;
    z-index: 1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: clamp(34px, 5vw, 52px);
    font-weight: 800;
    line-height: 1.15;
    color: var(--primary);
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.hero-content h1 .highlight {
    color: var(--secondary);
}

.hero-content p {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 500px;
    margin-bottom: 28px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.hero-stats .stat {
    text-align: center;
}

.hero-stats .stat .num {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    display: block;
    line-height: 1.2;
}

.hero-stats .stat .num .suffix {
    font-size: 20px;
    font-weight: 600;
    color: var(--secondary);
}

.hero-stats .stat .label {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 2px;
}

.hero-visual .illustration {
    width: 100%;
    max-width: 420px;
    aspect-ratio: 1/1;
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    box-shadow: none;
    padding: 0;
}

.hero-visual .illustration img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

@media (max-width: 820px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-content h1 {
        font-size: 30px;
    }
    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
    .hero-stats .stat .num {
        font-size: 26px;
    }
    .hero-visual .illustration {
        max-width: 100%;
        aspect-ratio: 4/3;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 8px;
    }
    .hero-stats .stat .num {
        font-size: 20px;
    }
    .hero-stats .stat .label {
        font-size: 12px;
    }
}

/* ===== 轮播图 ===== */
.carousel-section {
    background: var(--bg-white);
    padding: 50px 0 40px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.carousel-wrapper {
    max-width: 860px;
    margin: 0 auto;
    position: relative;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    background: #fff;
}

.carousel-slides {
    position: relative;
    min-height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 40px 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    opacity: 0;
    transition: opacity 0.8s ease;
    background: #fff;
}

.carousel-slide.active {
    opacity: 1;
    position: relative;
}

.carousel-slide img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    margin-bottom: 12px;
    max-height: 260px;
    object-fit: contain;
}

.carousel-slide i {
    font-size: 48px;
    color: var(--secondary);
    margin-bottom: 14px;
}

.carousel-slide h3 {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 8px;
}

.carousel-slide p {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 500px;
    line-height: 1.7;
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 12px;
    padding: 16px 0 20px;
    background: #fff;
}

.carousel-indicators .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ccc;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.carousel-indicators .dot.active {
    background: var(--secondary);
    transform: scale(1.2);
}

@media (max-width: 640px) {
    .carousel-slides {
        height: auto !important;
        min-height: 220px;
    }
    .carousel-slide {
        padding: 15px 16px;
    }
    .carousel-slide img {
        max-height: 180px;
    }
    .carousel-slide i {
        font-size: 30px;
    }
    .carousel-slide h3 {
        font-size: 18px;
    }
    .carousel-slide p {
        font-size: 14px;
    }
}

/* ===== 核心服务卡片 ===== */
.service-cards {
    padding: 60px 0 40px;
    background: var(--bg-gray);
}

.service-cards .card {
    text-align: center;
    padding: 36px 24px;
    border: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
}

.service-cards .card .card-icon {
    font-size: 48px;
    background: rgba(46, 139, 139, 0.08);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 18px;
    color: var(--secondary);
}

/* ===== 服务流程 ===== */
.process-section {
    padding: 60px 0 70px;
    background: var(--bg-white);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.process-steps {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px 50px;
    margin-top: 20px;
}

.process-step {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-light);
    padding: 16px 28px 16px 20px;
    border-radius: 60px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
    transition: var(--transition);
}

.process-step:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.process-step .step-num {
    width: 44px;
    height: 44px;
    background: var(--secondary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}

.process-step .step-content {
    font-size: 15px;
    color: var(--text-dark);
}

.process-step .step-content strong {
    display: block;
    font-size: 16px;
    color: var(--primary);
}

@media (max-width: 640px) {
    .process-steps {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }
    .process-step {
        width: 100%;
        max-width: 320px;
        border-radius: 40px;
        padding: 14px 20px;
    }
}

/* ===== 各板块通用间距 ===== */
.section-block {
    padding: 60px 0 80px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.section-block:last-of-type {
    border-bottom: none;
}

/* ===== 产品服务 ===== */
.service-category {
    margin-bottom: 48px;
}
.service-category:last-child {
    margin-bottom: 0;
}
.service-category h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.service-category h2 i {
    color: var(--secondary);
    font-size: 28px;
}
.service-category .desc {
    color: var(--text-muted);
    margin-bottom: 20px;
    font-size: 16px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 12px;
}

.pricing-item {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 20px 20px 18px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--secondary);
    transition: var(--transition);
}
.pricing-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}
.pricing-item .name {
    font-weight: 700;
    font-size: 16px;
    color: var(--primary);
}
.pricing-item .price {
    font-size: 20px;
    font-weight: 700;
    color: var(--secondary);
    margin: 4px 0 6px;
}
.pricing-item .price small {
    font-weight: 400;
    font-size: 14px;
    color: var(--text-muted);
}
.pricing-item .features {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ===== 产品特点 ===== */
.feature-card {
    text-align: center;
    padding: 36px 28px 32px;
}
.feature-card .card-icon {
    font-size: 44px;
    background: rgba(46, 139, 139, 0.08);
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 18px;
    color: var(--secondary);
}

/* ===== 品牌故事 ===== */
.story-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}
.story-text p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.9;
    margin-bottom: 16px;
}
.story-text .highlight-box {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 24px 28px;
    border-left: 4px solid var(--secondary);
    margin: 20px 0;
    box-shadow: var(--shadow);
}
.story-text .highlight-box p {
    margin-bottom: 0;
    font-weight: 500;
    color: var(--primary);
}
.story-team .team-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.story-team .team-item {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
}
.story-team .team-item .avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 700;
    margin: 0 auto 10px;
}
.story-team .team-item h4 {
    font-size: 15px;
    color: var(--primary);
}
.story-team .team-item p {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 2px;
}

@media (max-width: 820px) {
    .story-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .story-team .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== 信任背书 ===== */
.trust-grid .card {
    text-align: center;
    padding: 32px 20px;
}
.trust-grid .card .card-icon {
    font-size: 40px;
    background: rgba(46, 139, 139, 0.06);
    width: 68px;
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 14px;
    color: var(--secondary);
}
.trust-grid .card .stat-num {
    font-size: 28px;
    font-weight: 800;
    color: var(--secondary);
    display: block;
    margin-top: 8px;
}

/* ===== 客户案例 ===== */
.case-card {
    padding: 28px 24px;
    border-top: 4px solid var(--secondary);
}
.case-card .case-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}
.case-card .case-industry {
    font-size: 13px;
    color: var(--secondary);
    font-weight: 600;
    display: inline-block;
    margin-bottom: 12px;
}
.case-card .case-block {
    margin-top: 12px;
}
.case-card .case-block strong {
    color: var(--primary);
    display: block;
    font-size: 14px;
    margin-bottom: 2px;
}
.case-card .case-block p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 8px;
}

/* ===== 新闻动态板块 ===== */
.news-section {
    padding: 60px 0 80px;
    background: var(--bg-gray);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
@media (max-width: 992px) {
    .news-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .news-grid { grid-template-columns: 1fr; }
}
.news-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}
.news-card .news-cover {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--bg-gray);
}
.news-card .news-body {
    padding: 22px 24px 26px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.news-card .news-category {
    font-size: 12px;
    font-weight: 600;
    color: var(--secondary);
    background: rgba(46, 139, 139, 0.10);
    padding: 3px 10px;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 10px;
    align-self: flex-start;
}
.news-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-card .news-summary {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-card .news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid rgba(0,0,0,0.05);
    font-size: 13px;
    color: var(--text-muted);
}
.news-card .news-more {
    color: var(--secondary);
    font-weight: 600;
    font-size: 13px;
}
.news-more-link {
    text-align: center;
    margin-top: 40px;
}

/* ===== 新闻列表页 ===== */
.news-list-page {
    padding: 40px 0 80px;
}
.news-list-item {
    display: flex;
    gap: 24px;
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.news-list-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-hover);
}
.news-list-item .list-cover {
    width: 200px;
    height: 140px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
}
.news-list-item .list-content {
    flex: 1;
}
.news-list-item h3 {
    font-size: 18px;
    color: var(--primary);
    margin-bottom: 8px;
}
.news-list-item .list-summary {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 10px;
}
.news-list-item .list-meta {
    font-size: 13px;
    color: var(--text-muted);
}
@media (max-width: 640px) {
    .news-list-item {
        flex-direction: column;
    }
    .news-list-item .list-cover {
        width: 100%;
        height: 180px;
    }
}
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}
.pagination a, .pagination span {
    padding: 8px 16px;
    border-radius: 8px;
    background: var(--bg-white);
    color: var(--text-muted);
    font-size: 14px;
    transition: var(--transition);
}
.pagination a:hover {
    background: var(--primary);
    color: #fff;
}
.pagination .current {
    background: var(--primary);
    color: #fff;
}

/* ===== 新闻详情页 ===== */
.news-detail {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 24px 80px;
}
.news-detail .detail-header {
    text-align: center;
    margin-bottom: 32px;
}
.news-detail .detail-category {
    display: inline-block;
    background: rgba(46, 139, 139, 0.12);
    color: var(--secondary);
    font-size: 13px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
}
.news-detail h1 {
    font-size: clamp(24px, 4vw, 34px);
    color: var(--primary);
    line-height: 1.4;
    margin-bottom: 16px;
}
.news-detail .detail-meta {
    font-size: 14px;
    color: var(--text-muted);
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.news-detail .detail-cover {
    width: 100%;
    border-radius: var(--radius);
    margin-bottom: 32px;
}
.news-detail .detail-content {
    font-size: 16px;
    line-height: 2;
    color: var(--text-dark);
}
.news-detail .detail-content p {
    margin-bottom: 18px;
}
.news-detail .detail-content img {
    max-width: 100%;
    border-radius: 8px;
    margin: 16px 0;
}
.news-detail .detail-content h2,
.news-detail .detail-content h3 {
    color: var(--primary);
    margin: 28px 0 14px;
}
.news-detail .back-link {
    display: inline-block;
    margin-top: 40px;
    color: var(--secondary);
    font-weight: 600;
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 40px 0 28px;
    margin-top: 20px;
}
.site-footer .container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.site-footer .footer-top {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
}
.site-footer .footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
}
.site-footer .footer-brand i {
    color: var(--accent);
}
.site-footer .footer-contact {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    font-size: 14px;
}
.site-footer .footer-contact a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}
.site-footer .footer-contact a:hover {
    color: #fff;
}
.site-footer .footer-divider {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.site-footer .footer-bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}
.site-footer .footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
    transition: var(--transition);
}
.site-footer .footer-bottom a:hover {
    color: #fff;
}
@media (max-width: 640px) {
    .site-footer .footer-top {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .site-footer .footer-contact {
        justify-content: center;
    }
    .site-footer .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

/* ===== 回到顶部按钮 ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 18px;
    box-shadow: 0 4px 16px rgba(13, 59, 102, 0.3);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}
.back-to-top:hover {
    background: var(--secondary);
    transform: translateY(-3px);
}

/* ===== 滚动条美化 ===== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-light);
}
::-webkit-scrollbar-thumb {
    background: var(--secondary);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}