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

:root {
    --primary-color: #0A1628;
    --secondary-color: #1E3A5F;
    --accent-color: #2E5A8A;
    --light-gray: #F8FAFC;
    --medium-gray: #E2E8F0;
    --card-border: rgba(226, 232, 240, 0.8);
    --card-shadow: 0 4px 20px rgba(10, 22, 40, 0.08);
    --card-shadow-hover: 0 12px 32px rgba(10, 22, 40, 0.12);
    --dark-gray: #334155;
    --white: #FFFFFF;
    --text-color: #334155;
    --text-light: #64748B;
    --text-muted: #94A3B8;
    --blue-accent: #4A90D9;
    --blue-deep: #1E3A5F;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.75;
    color: var(--text-color);
    background-color: var(--light-gray);
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html {
    scroll-behavior: smooth;
}

h1 { font-size: 42px; font-weight: 800; letter-spacing: -0.5px; color: var(--primary-color); }
h2 { font-size: 32px; font-weight: 700; letter-spacing: -0.3px; color: var(--primary-color); }
h3 { font-size: 22px; font-weight: 600; color: var(--primary-color); }
h4 { font-size: 17px; font-weight: 600; color: var(--primary-color); }
h5 { font-size: 15px; font-weight: 600; color: var(--primary-color); }
h6 { font-size: 14px; font-weight: 600; color: var(--primary-color); }

p { 
    font-size: 15px; 
    line-height: 1.75; 
    color: var(--text-light); 
    letter-spacing: 0.2px;
}

strong, b { 
    font-weight: 700; 
    color: var(--primary-color); 
}

em { color: var(--blue-accent); font-style: normal; font-weight: 600; }

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

header {
    background-color: transparent;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.35s ease;
    padding: 15px 0;
}

header.scrolled {
    background-color: rgba(10, 22, 40, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    padding: 10px 0;
}

body.inner-page header {
    background-color: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    padding: 10px 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
}

.logo a.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
}

a.phone-link {
    color: inherit;
    text-decoration: none;
}

a.phone-link:hover {
    text-decoration: none;
    opacity: 0.9;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text .company-name {
    color: var(--white);
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 1px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.logo-text .company-name-en {
    color: rgba(255, 255, 255, 0.65);
    font-size: 10px;
    letter-spacing: 1.5px;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-links li {
    margin-left: 35px;
}

.nav-links li a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    letter-spacing: 0.5px;
}

.nav-links li a:hover {
    color: var(--blue-accent);
}

.nav-links li a.active {
    color: var(--blue-accent);
}

.nav-links li a.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--blue-accent);
    border-radius: 1px;
}

.language-switch {
    display: flex;
    align-items: center;
    margin-left: 25px;
}

.language-switch button {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

.language-switch button:first-child {
    border-radius: 6px 0 0 6px;
}

.language-switch button:last-child {
    border-radius: 0 6px 6px 0;
    border-left: none;
}

.language-switch button.active {
    background-color: var(--blue-accent);
    border-color: var(--blue-accent);
}

.language-switch button:hover {
    background-color: rgba(74, 144, 217, 0.3);
}

.mobile-menu-btn {
    display: none;
    color: var(--white);
    font-size: 24px;
    cursor: pointer;
}

/* ============ 首页首屏 Hero（画质升级 + 统一深色遮罩0.58 + 白色文字保证可读性） ============ */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.58), rgba(0, 0, 0, 0.58)), url('../images/hero-sunset.jpg') center center / cover no-repeat;
    height: 80vh;
    min-height: 620px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #FFFFFF;
    margin-top: 0;
    position: relative;
    overflow: hidden;
}

/* ============ 内页 Hero（各页面差异化背景图 + 遮罩统一 0.55~0.60） ============ */
body.page-about .hero {
    background: linear-gradient(rgba(0, 0, 0, 0.58), rgba(0, 0, 0, 0.58)), url('../images/hero-port-blue.jpg') center center / cover no-repeat;
}
body.page-services .hero {
    background: linear-gradient(rgba(0, 0, 0, 0.56), rgba(0, 0, 0, 0.56)), url('../images/port-aerial.jpg') center center / cover no-repeat;
}
body.page-faq .hero {
    background: linear-gradient(rgba(0, 0, 0, 0.60), rgba(0, 0, 0, 0.60)), url('../images/yard-sunset.jpg') center center / cover no-repeat;
}
body.page-news .hero {
    background: linear-gradient(rgba(0, 0, 0, 0.58), rgba(0, 0, 0, 0.58)), url('../images/port-night.jpg') center center / cover no-repeat;
}
body.page-contact .hero {
    background: linear-gradient(rgba(0, 0, 0, 0.56), rgba(0, 0, 0, 0.56)), url('../images/truck-highway.jpg') center center / cover no-repeat;
}
body.page-news-detail .hero {
    background: linear-gradient(rgba(0, 0, 0, 0.58), rgba(0, 0, 0, 0.58)), url('../images/port-night.jpg') center center / cover no-repeat;
}

/* 额外保证：.hero 下所有层级文字强制白色，避免全局标题色覆盖 */
.hero,
.hero h1,
.hero h2,
.hero h3,
.hero h4,
.hero h5,
.hero h6,
.hero p,
.hero span,
.hero a {
    color: #FFFFFF !important;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(74, 144, 217, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74, 144, 217, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 10%;
    left: 5%;
    right: 5%;
    bottom: 10%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 600'%3E%3Cpath fill='%234A90D9' fill-opacity='0.03' d='M0,320 C150,280 300,360 450,320 C600,280 750,360 900,320 C1050,280 1200,360 1200,360 L1200,600 L0,600 Z'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s ease;
    max-width: 800px;
    padding: 0 20px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    font-size: 58px;
    margin-bottom: 22px;
    font-weight: 800;
    color: #FFFFFF !important;
    text-shadow: 0 3px 18px rgba(0, 0, 0, 0.55), 0 1px 2px rgba(0, 0, 0, 0.6);
    letter-spacing: -0.8px;
    line-height: 1.15;
}

.hero h2 {
    font-size: 28px;
    margin-bottom: 18px;
    color: #FFFFFF !important;
    font-weight: 500;
    letter-spacing: 1.5px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
    opacity: 1;
}

.hero p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.9) !important;
    margin-bottom: 42px;
    line-height: 1.85;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.45);
}

.hero-btn {
    display: inline-block;
    background-color: var(--blue-accent);
    color: var(--white);
    padding: 14px 36px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 1px;
    transition: all 0.35s ease;
    box-shadow: 0 4px 15px rgba(74, 144, 217, 0.4);
}

.hero-btn:hover {
    background-color: #3A7BC8;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(74, 144, 217, 0.5);
}

.section {
    padding: 80px 0;
    transition: all 0.6s ease;
    background-color: var(--white);
}

body.js-enabled .section {
    opacity: 0;
    transform: translateY(30px);
}

body.js-enabled .section.visible {
    opacity: 1;
    transform: translateY(0);
}

.section.bg-light {
    background-color: var(--light-gray);
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 34px;
    color: var(--primary-color);
    margin-bottom: 18px;
    font-weight: 700;
}

.section-title .underline {
    width: 60px;
    height: 3px;
    background: var(--secondary-color);
    margin: 0 auto;
    border-radius: 2px;
}

.section-title p {
    color: var(--text-light);
    margin-top: 22px;
    font-size: 16px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
    margin-top: 0;
}

/* ============ 统一卡片规范：白背景 / 8px圆角 / 柔和阴影 / hover上浮3px ============ */
.feature-card,
.service-card,
.news-card,
.contact-item,
.advantage-item,
.qualification-item,
.route-card,
.strength-item,
.service-detail-card,
.faq-question {
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--card-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover,
.service-card:hover,
.news-card:hover,
.contact-item:hover,
.advantage-item:hover,
.qualification-item:hover,
.route-card:hover,
.strength-item:hover,
.service-detail-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--card-shadow-hover);
    border-color: rgba(74, 144, 217, 0.25);
}

/* ============ 企业优势 feature-card ============ */
.feature-card {
    padding: 32px 28px;
    text-align: center;
}
.feature-card .icon {
    font-size: 44px;
    margin-bottom: 22px;
    color: var(--blue-accent);
    filter: drop-shadow(0 4px 10px rgba(74, 144, 217, 0.18));
}
.feature-card h3 {
    font-size: 19px;
    color: var(--primary-color);
    margin-bottom: 14px;
    font-weight: 700;
}
.feature-card p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.75;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 0;
}

/* ============ 首页服务 service-card ============ */
.service-card {
    padding: 32px 24px;
    text-align: center;
    cursor: pointer;
}
.service-card .icon {
    font-size: 40px;
    margin-bottom: 18px;
    color: var(--blue-accent);
}
.service-card h3 {
    font-size: 17px;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 700;
}
.service-card p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.7;
}

.stats-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(74, 144, 217, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74, 144, 217, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
}

.stats-section .section-title h2 {
    color: var(--white);
}

.stats-section .section-title p {
    color: rgba(255, 255, 255, 0.7);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 36px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.stat-item {
    padding: 28px 20px;
}

/* ============ 首页数据数字：加大字号、深蓝（主色调）加粗、更有视觉冲击力 ============ */
.stat-item .number {
    font-size: 64px;
    font-weight: 900;
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    text-shadow: 0 2px 8px rgba(30, 58, 95, 0.15);
    background: linear-gradient(135deg, #4A90D9 0%, #1E3A5F 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
    line-height: 1.1;
}

.stat-item .label {
    font-size: 15px;
    color: var(--text-light);
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* 深色背景下的 stat 数字更突出（stats-section 覆盖色） */
.stats-section .stat-item .number {
    background: linear-gradient(135deg, #7FB5FF 0%, #4A90D9 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: none;
}
.stats-section .stat-item .label {
    color: rgba(255, 255, 255, 0.78);
    font-size: 15px;
    opacity: 1;
    letter-spacing: 1px;
}

.about-intro {
    display: flex;
    gap: 56px;
    align-items: center;
}

.about-intro img {
    width: 44%;
    aspect-ratio: 4 / 3;
    border-radius: 8px;
    object-fit: cover;
    box-shadow: 0 10px 30px rgba(10, 22, 40, 0.14);
}

.about-intro-text {
    flex: 1;
}

.about-intro-text h3 {
    font-size: 26px;
    color: var(--primary-color);
    margin-bottom: 20px;
    font-weight: 700;
}

.about-intro-text p {
    color: var(--text-light);
    line-height: 1.85;
    margin-bottom: 16px;
    font-size: 15px;
}

.about-intro-text .read-more {
    display: inline-block;
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    margin-top: 16px;
    font-size: 15px;
    transition: all 0.25s ease;
    padding: 10px 22px;
    border-radius: 6px;
    border: 1px solid rgba(30, 58, 95, 0.2);
}

.about-intro-text .read-more:hover {
    background-color: var(--secondary-color);
    color: var(--white);
    transform: scale(1.02);
    border-color: var(--secondary-color);
}

.about-advantages {
    background-color: var(--light-gray);
    padding: 56px 40px;
    margin-top: 40px;
    border-radius: 8px;
}

.advantages-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

/* ============ 优势卡片：图标文字对齐更美观 ============ */
.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 24px;
}
.advantage-item .icon {
    font-size: 24px;
    color: var(--secondary-color);
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(74, 144, 217, 0.12);
    border-radius: 10px;
    margin-top: 2px;
}
.advantage-item h4 {
    font-size: 17px;
    color: var(--primary-color);
    margin-bottom: 8px;
    font-weight: 700;
}
.advantage-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.75;
}

.strength-data {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 22px;
    margin-top: 0;
}

/* ============ 实力数据 strength-item：统一卡片样式 ============ */
.strength-item {
    text-align: center;
    padding: 32px 22px;
}
.strength-item:hover {
    background-color: rgba(74, 144, 217, 0.04);
}
.strength-item .value {
    font-size: 44px;
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 8px;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}
.strength-item .label {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
}

.qualifications {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 22px;
    margin-top: 0;
}

/* ============ 资质证书区块：图标加大，排列整齐 ============ */
.qualification-item {
    text-align: center;
    padding: 34px 24px;
}
.qualification-item .icon {
    font-size: 52px;
    color: var(--secondary-color);
    margin-bottom: 16px;
    line-height: 1;
    filter: drop-shadow(0 4px 10px rgba(30, 58, 95, 0.12));
}
.qualification-item h4 {
    font-size: 15px;
    color: var(--primary-color);
    font-weight: 600;
}

.corporate-culture {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 48px;
    border-radius: 8px;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-top: 40px;
}

.corporate-culture::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(74, 144, 217, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74, 144, 217, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

.corporate-culture h3 {
    font-size: 22px;
    color: var(--white);
    margin-bottom: 20px;
    font-weight: 700;
    position: relative;
    z-index: 2;
}

.corporate-culture p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.85;
    position: relative;
    z-index: 2;
    font-size: 15px;
}

.services-main {
    margin-top: 0;
}

.service-detail-card {
    overflow: hidden;
    margin-bottom: 22px;
}
.service-detail-card:hover {
    border-color: rgba(74, 144, 217, 0.25);
}

.service-detail-header {
    display: flex;
    align-items: center;
    padding: 26px 30px;
    background-color: var(--light-gray);
    cursor: pointer;
    transition: background-color 0.25s ease;
    border-bottom: 1px solid transparent;
}

.service-detail-header:hover {
    background-color: rgba(74, 144, 217, 0.06);
}

.service-detail-header .icon {
    font-size: 32px;
    color: var(--secondary-color);
    margin-right: 20px;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(74, 144, 217, 0.12);
    border-radius: 10px;
}

.service-detail-header h3 {
    font-size: 19px;
    color: var(--primary-color);
    flex: 1;
    font-weight: 700;
}

.service-detail-header .arrow {
    font-size: 18px;
    color: var(--text-light);
    transition: transform 0.3s ease;
}

.service-detail-card.active .arrow {
    transform: rotate(180deg);
}

.service-detail-content {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.45s ease;
}

.service-detail-card.active .service-detail-content {
    padding: 32px 30px;
    max-height: 1200px;
}

.service-detail-content h4 {
    font-size: 17px;
    color: var(--primary-color);
    margin-bottom: 14px;
    font-weight: 700;
}

/* ============ 业务服务页 4 个服务交替配图（左右交替） ============ */
.service-detail-content .service-image {
    aspect-ratio: 16 / 9;
    width: 46%;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 8px 22px rgba(10, 22, 40, 0.12);
    float: left;
    margin: 0 28px 18px 0;
}

/* 第 2 张、第 4 张卡片图片放右边（奇偶交替） */
.services-main .service-detail-card:nth-child(even) .service-image {
    float: right;
    margin: 0 0 18px 28px;
}

.service-detail-content::after {
    content: "";
    display: block;
    clear: both;
}

.service-detail-content p {
    color: var(--text-light);
    margin-bottom: 14px;
    line-height: 1.8;
}

.service-detail-content ul {
    list-style: none;
    padding-left: 0;
    margin-top: 12px;
    overflow: hidden;
}

.service-detail-content ul li {
    padding: 8px 0 8px 24px;
    color: var(--text-light);
    position: relative;
    font-size: 15px;
    border-bottom: 1px solid var(--medium-gray);
}

.service-detail-content ul li:last-child {
    border-bottom: none;
}

.service-detail-content ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 15px;
}

.routes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 22px;
}

/* ============ 航线卡片：统一卡片规范 ============ */
.route-card {
    padding: 28px 22px;
    text-align: center;
}
.route-card .icon {
    font-size: 34px;
    color: var(--secondary-color);
    margin-bottom: 14px;
}
.route-card h4 {
    font-size: 17px;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 700;
}
.route-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ============ FAQ ============ */
.faq-section {
    max-width: 880px;
    margin: 0 auto;
}

.faq-categories {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.faq-category-btn {
    background-color: var(--white);
    border: 1px solid var(--card-border);
    padding: 10px 22px;
    border-radius: 22px;
    font-size: 14px;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(10, 22, 40, 0.04);
}

.faq-category-btn.active {
    background-color: var(--secondary-color);
    color: var(--white);
    border-color: var(--secondary-color);
    box-shadow: 0 4px 14px rgba(30, 58, 95, 0.22);
    transform: scale(1.02);
}

.faq-category-btn:hover {
    background-color: var(--secondary-color);
    color: var(--white);
    border-color: var(--secondary-color);
    transform: scale(1.02);
}

.faq-item {
    margin-bottom: 14px;
}

.faq-question {
    padding: 20px 26px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.25s ease;
    margin-bottom: 0;
    border: 1px solid var(--card-border);
}

.faq-question:hover {
    border-color: rgba(74, 144, 217, 0.3);
    background-color: rgba(74, 144, 217, 0.03);
}

.faq-question h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-color);
    flex: 1;
    padding-right: 16px;
}

.faq-question::after {
    content: '+';
    font-size: 22px;
    color: var(--secondary-color);
    font-weight: 700;
    transition: transform 0.3s ease;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(74, 144, 217, 0.1);
    border-radius: 50%;
    flex-shrink: 0;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
    background-color: var(--white);
}

.faq-item.active .faq-question {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    box-shadow: 0 4px 16px rgba(30, 58, 95, 0.22);
}

.faq-item.active .faq-question h4 {
    color: var(--white);
}

.faq-answer {
    padding: 0 26px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.45s ease;
    background-color: var(--white);
    border-left: 4px solid var(--secondary-color);
    border-radius: 0 0 8px 8px;
    margin-top: -1px;
}

.faq-item.active .faq-answer {
    padding: 22px 26px;
    max-height: 600px;
    box-shadow: 0 4px 16px rgba(10, 22, 40, 0.05);
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 15px;
}

/* ============ 新闻卡片（16:9 统一裁剪，不重复配图） ============ */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
    margin-top: 0;
}

.news-card {
    overflow: hidden;
    cursor: pointer;
}

.news-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

.news-card-link:hover {
    color: inherit;
    text-decoration: none;
}

.news-card img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    transition: transform 0.45s ease;
    display: block;
}

.news-card:hover img {
    transform: scale(1.06);
}

.news-card-content {
    padding: 24px 22px 26px;
}

.news-card-content .date {
    font-size: 12px;
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-weight: 600;
    letter-spacing: 0.8px;
}

.news-card-content h3 {
    font-size: 17px;
    color: var(--primary-color);
    margin-bottom: 10px;
    line-height: 1.5;
    font-weight: 700;
}

.news-card-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

.news-detail {
    max-width: 880px;
    margin: 0 auto;
}

.news-detail-header {
    text-align: center;
    margin-bottom: 36px;
}

.news-detail-header h1 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 18px;
    font-weight: 700;
}

.news-detail-header .date {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
}

.news-detail-content {
    line-height: 1.85;
    color: var(--text-color);
}

.news-detail-content p {
    margin-bottom: 20px;
    font-size: 15px;
    white-space: pre-line;
}

.news-detail-content img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 8px;
    margin: 24px 0 32px;
    box-shadow: 0 8px 24px rgba(10, 22, 40, 0.12);
}

.back-link {
    display: inline-block;
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    margin-top: 30px;
    padding: 10px 26px;
    border: 1.5px solid var(--secondary-color);
    border-radius: 8px;
    transition: all 0.2s ease;
    font-size: 15px;
}

.back-link:hover {
    background-color: var(--secondary-color);
    color: var(--white);
    transform: scale(1.02);
    box-shadow: 0 6px 18px rgba(30, 58, 95, 0.22);
}

/* ============ 联系页 ============ */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 0;
}

/* ============ 联系卡片：统一卡片规范 ============ */
.contact-item {
    padding: 32px 26px;
    text-align: center;
}
.contact-item .icon {
    font-size: 36px;
    color: var(--secondary-color);
    margin-bottom: 16px;
}
.contact-item h4 {
    font-size: 16px;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 700;
}
.contact-item p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.75;
}

.contact-map {
    background: linear-gradient(135deg, var(--light-gray) 0%, #E8F0FE 100%);
    height: 420px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 30px;
    position: relative;
    overflow: hidden;
}

.contact-map::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(74, 144, 217, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74, 144, 217, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
}

.contact-map .map-placeholder {
    text-align: center;
    color: var(--text-light);
    position: relative;
    z-index: 2;
}

.contact-map .map-placeholder .icon {
    font-size: 70px;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.contact-map.contact-map-static,
.contact-map:has(.contact-map-img) {
    height: auto;
    background: var(--white);
    align-items: stretch;
}

.contact-map.contact-map-static::before,
.contact-map:has(.contact-map-img)::before {
    content: none;
}

.contact-map-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
    border-radius: 8px;
}

/* ============ 7.10(2) 企业级精修：区分模块层级，降低模板感 ============ */
.feature-card {
    border-top: 3px solid rgba(74, 144, 217, 0.72);
}

.service-card {
    text-align: left;
    padding: 34px 28px;
    border-color: rgba(30, 58, 95, 0.14);
}

.service-card .icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background-color: rgba(74, 144, 217, 0.1);
    font-size: 28px;
}

.service-card:hover {
    background: linear-gradient(180deg, #FFFFFF 0%, #F8FBFF 100%);
}

.news-card {
    box-shadow: 0 2px 14px rgba(10, 22, 40, 0.06);
}

.news-card:hover {
    transform: translateY(-2px);
}

.qualification-item {
    box-shadow: 0 2px 12px rgba(10, 22, 40, 0.05);
}

/* ============ 7.10(2) 企业实力：更稳重的数字区 ============ */
.stats-section {
    background: #0A1628;
}

.stats-section::before {
    opacity: 0.45;
}

.stats-grid {
    gap: 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.035);
}

.stats-section .stat-item {
    padding: 34px 22px;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.stats-section .stat-item:last-child {
    border-right: none;
}

.stats-section .stat-item .number {
    color: #FFFFFF;
    background: none;
    -webkit-text-fill-color: currentColor;
    text-shadow: none;
    font-size: 54px;
    letter-spacing: 0;
}

.stats-section .stat-item .label {
    color: rgba(255, 255, 255, 0.72);
    letter-spacing: 0.5px;
}

/* ============ 7.10(2) FAQ：降低长文本阅读压力 ============ */
.faq-section {
    max-width: 940px;
}

.faq-item {
    margin-bottom: 16px;
}

.faq-question {
    padding: 22px 28px;
}

.faq-question h4 {
    font-size: 17px;
    line-height: 1.55;
}

.faq-answer {
    border-left-width: 3px;
}

.faq-item.active .faq-answer {
    padding: 24px 30px 28px;
}

.faq-answer p {
    max-width: 780px;
    line-height: 1.95;
    font-size: 15px;
}

/* ============ 7.10(2) 联系页：更像业务入口，信息更可扫描 ============ */
.contact-info {
    align-items: stretch;
}

.contact-item {
    text-align: left;
    display: flex;
    flex-direction: column;
    min-height: 172px;
    border-color: rgba(30, 58, 95, 0.14);
}

.contact-item .icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background-color: rgba(74, 144, 217, 0.1);
    font-size: 24px;
}

.contact-item p {
    margin-top: auto;
    color: var(--primary-color);
    font-weight: 600;
}

.contact-item .phone-link {
    color: var(--primary-color);
    font-size: 17px;
}

.contact-map {
    box-shadow: 0 8px 24px rgba(10, 22, 40, 0.1);
}

/* ============ 按钮统一 hover：颜色加深 + 轻微放大 1.02 + 0.2s ============ */
.hero-btn {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 14px 36px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 1px;
    transition: all 0.2s ease;
    box-shadow: 0 4px 14px rgba(30, 58, 95, 0.25);
}

.hero-btn:hover {
    background-color: var(--primary-color);
    transform: scale(1.02) translateY(-2px);
    box-shadow: 0 8px 22px rgba(10, 22, 40, 0.32);
}

/* 所有导航链接 & 可点击图标 hover 顺畅 */
a, button, .nav-links li a {
    transition: color 0.2s ease, background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0F1E36 100%);
    color: var(--white);
    padding: 80px 0 40px;
    position: relative;
    overflow: hidden;
    margin-top: 0;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(74, 144, 217, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74, 144, 217, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
    position: relative;
    z-index: 2;
}

.footer-about h4 {
    font-size: 18px;
    margin-bottom: 18px;
    font-weight: 700;
    color: var(--white);
}

.footer-about p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.85;
}

.footer-links h4 {
    font-size: 18px;
    margin-bottom: 18px;
    font-weight: 700;
    color: var(--white);
}

.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.72);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s ease;
    display: inline-block;
}

.footer-links ul li a:hover {
    color: var(--blue-accent);
    transform: translateX(4px);
}

.footer-contact h4 {
    font-size: 18px;
    margin-bottom: 18px;
    font-weight: 700;
    color: var(--white);
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.72);
    font-size: 14px;
    margin-bottom: 10px;
    line-height: 1.8;
}
.footer-contact p i.fas {
    color: var(--blue-accent);
    margin-right: 8px;
    width: 16px;
    text-align: center;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 30px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 13px;
}

/* ============ 内页统一：移除服务页等 inline style="#F5F5F5" 造成的差异（用属性选择器统一） ============ */
section[style*="background-color: #F5F5F5"] {
    background-color: var(--light-gray) !important;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: rgba(10, 22, 40, 0.98);
        backdrop-filter: blur(12px);
        padding: 25px;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        margin: 12px 0;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero {
        height: 62vh;
        min-height: 430px;
    }

    .hero h1 {
        font-size: 40px;
    }

    .hero h2 {
        font-size: 22px;
    }

    .hero p {
        font-size: 16px;
    }

    .about-intro {
        flex-direction: column;
        gap: 28px;
    }

    .about-intro img {
        width: 100%;
        aspect-ratio: 16 / 9;
    }

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

    .stat-item .number {
        font-size: 44px;
    }

    .stats-section .stat-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .stats-section .stat-item:nth-last-child(-n + 2) {
        border-bottom: none;
    }

    .faq-categories {
        flex-direction: column;
        align-items: center;
    }

    .faq-category-btn {
        width: 240px;
    }

    /* 移动端：服务详情图片恢复100%宽，取消左右浮动 */
    .service-detail-content .service-image,
    .services-main .service-detail-card:nth-child(even) .service-image {
        width: 100%;
        float: none;
        margin: 0 0 20px 0;
        aspect-ratio: 16 / 9;
    }

    .corporate-culture {
        padding: 32px 22px;
    }

    .about-advantages {
        padding: 32px 18px;
    }
}

@media (max-width: 480px) {
    .hero {
        height: 56vh;
        min-height: 360px;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero h2 {
        font-size: 19px;
    }

    .hero p {
        font-size: 15px;
    }

    .section-title h2 {
        font-size: 26px;
    }

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

    .stats-section .stat-item,
    .stats-section .stat-item:nth-last-child(-n + 2) {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .stats-section .stat-item:last-child {
        border-bottom: none;
    }

    .stat-item .number {
        font-size: 48px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .features-grid, .services-grid, .news-grid {
        grid-template-columns: 1fr;
    }

    .qualifications {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }

    .qualification-item {
        padding: 22px 12px;
    }

    .qualification-item .icon {
        font-size: 38px;
    }

    .strength-data {
        grid-template-columns: repeat(2, 1fr);
    }

    .strength-item .value {
        font-size: 34px;
    }

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

    .contact-item {
        min-height: auto;
        padding: 28px 24px;
    }

    .contact-map-img {
        height: 320px;
    }

    .faq-question {
        padding: 18px 20px;
    }

    .faq-item.active .faq-answer {
        padding: 20px 22px 24px;
    }

    .service-detail-card.active .service-detail-content {
        padding: 22px 18px;
    }

    .service-detail-header {
        padding: 20px 18px;
    }

    .service-detail-header .icon {
        width: 40px;
        height: 40px;
        font-size: 24px;
        margin-right: 14px;
    }

    .service-detail-header h3 {
        font-size: 16px;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        margin-bottom: 40px;
    }
}

.img-fade-in {
    animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.page-transition {
    animation: pageFadeIn 0.5s ease;
}

@keyframes pageFadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.counter-animate {
    animation: countUp 1.5s ease-out forwards;
}

@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}