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

body {
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    color: #333;
    background-color: #fff;
}

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

ul, li {
    list-style: none;
}

img {
    vertical-align: middle;
    max-width: 100%;
}

.container {
    width: 1200px;
    margin: 0 auto;
}

/* Header */
.header {
    background: linear-gradient(135deg, #1a3a8f 0%, #2b5cd9 100%);
    height: 70px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

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

.header-left {
    display: flex;
    align-items: center;
}

.logo {
    height: 65px;
    margin-right: 60px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav > a,
.nav-item > a {
    color: #fff;
    font-size: 16px;
    padding: 12px 18px;
    position: relative;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    border-radius: 4px;
}

.nav > a:hover,
.nav-item:hover > a {
    color: #ffd700;
    background: rgba(255, 255, 255, 0.1);
}

.nav-item {
    position: relative;
}

.submenu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(5px);
    background: linear-gradient(135deg, #1a3a8f 0%, #2b5cd9 100%);
    min-width: 140px;
    padding: 8px 0;
    border-radius: 6px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.submenu::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-bottom-color: #1a3a8f;
}

.submenu::after {
    content: '';
    position: absolute;
    top: -15px;
    left: 0;
    right: 0;
    height: 15px;
}

.nav-item:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.submenu a {
    display: block;
    padding: 12px 24px;
    text-align: center;
    white-space: nowrap;
    min-height: 44px;
    line-height: 20px;
    color: #fff;
}

.submenu a:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #ffd700;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 30px;
}

.partner-logo {
    height: 50px;
}

.user-register {
    color: #fff;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.user-register:hover {
    color: #ffd700;
}

/* Banner */
.banner {
    margin-top: 70px;
    position: relative;
    width: 100%;
    overflow: hidden;
}

.swiper-container {
    width: 100%;
    height: auto;
    overflow: hidden;
}

.swiper-slide {
    width: 100%;
}

.swiper-slide img {
    width: 100%;
    height: 70vh;
    object-fit: cover;
    display: block;
}

.swiper-button-prev,
.swiper-button-next {
    color: #fff;
    opacity: 0;
    transition: opacity 0.3s;
}

.banner:hover .swiper-button-prev,
.banner:hover .swiper-button-next {
    opacity: 1;
}

.swiper-button-prev:after,
.swiper-button-next:after {
    font-size: 30px;
}

.swiper-pagination-bullet {
    background: #fff;
    opacity: 0.6;
}

.swiper-pagination-bullet-active {
    background: #ffd700;
    opacity: 1;
}

.banner-divider {
    width: 2px;
    height: 120px;
    background: rgba(255, 255, 255, 0.6);
}

.banner-slogan {
    text-align: left;
}

.banner-slogan p {
    font-size: 42px;
    font-weight: bold;
    line-height: 1.4;
}

/* Section Title */
.section-title {
    text-align: center;
    padding: 60px 0 40px;
    position: relative;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.title-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.title-text {
    text-align: center;
}

.title-line {
    width: 50px;
    height: auto;
}

.title-line.left {
    transform: rotate(-15deg);
}

.title-line.right {
    transform: rotate(-15deg);
}

.section-title h2 {
    font-size: 28px;
    color: #000000;
    font-weight: bold;
    margin-bottom: 8px;
}

.section-title p {
    font-size: 14px;
    color: #000000;
    letter-spacing: 3px;
}

.section-title-bar {
    width: 50px;
    height: 4px;
    background: #1a3a8f;
    margin: 15px auto 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.more-link {
    color: #575B66;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 80px;
}

.more-link:hover {
    color: #ffd700;
}

.arrow-icon {
    width: 16px;
    height: auto;
}

/* Process Section */
.process-section {
    padding-bottom: 60px;
}

.process-list {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 0 20px;
}

.process-item {
    text-align: center;
    flex: 1;
}

.process-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 10px;
}

.process-icon img {
    width: 100%;
    height: auto;
}

.process-circle {
    width: 120px;
    height: 120px;
    margin: 0 auto 15px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.circle-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.process-text {
    font-size: 14px;
    color: #333;
    line-height: 1.5;
    text-align: center;
    position: relative;
    z-index: 1;
}

.process-date {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.date-bg {
    width: auto;
    height: 20px;
    max-width: none;
}

.process-date span {
    position: absolute;
    z-index: 1;
    color: #fff;
    font-size: 14px;
    white-space: nowrap;
}

/* News Section */
.news-section {
    padding-bottom: 60px;
}

.news-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.news-item {
    background: #fff;
    border-radius: 5px;
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.news-img {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.news-title {
    padding: 15px 15px 0;
    font-size: 14px;
    color: #333;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Project Section */
.project-section {
    padding-bottom: 60px;
}

.project-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.project-item {
    background: #fff;
    border-radius: 5px;
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.project-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.project-img {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.project-content {
    padding: 15px;
}

.project-title {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.project-desc {
    font-size: 13px;
    color: #666;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Story Section */
.story-section {
    padding-bottom: 60px;
}

.story-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.story-item {
    background: #fff;
    border-radius: 5px;
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.story-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.story-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.story-title {
    padding: 15px;
    font-size: 14px;
    color: #333;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Footer */
.footer {
    background: #1a3a8f;
    color: #fff;
    padding: 30px 0;
    text-align: center;
}

.footer p {
    font-size: 13px;
    line-height: 2;
    color: rgba(255, 255, 255, 0.8);
}

.footer a {
    color: rgba(255, 255, 255, 0.8);
}

.footer a:hover {
    color: #ffd700;
}