* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}
html,body {overflow-x: hidden}
ul, li { list-style: none; }
a { text-decoration: none; color: #333; }
img { max-width: 100%; display: block; }

:root {
    --sao-primary: #0078D7;
    --sao-primary-dark: #005A9E;
    --sao-primary-light: #50A0E5;
    --sao-primary-soft: #E8F2FC;
    --sao-text: #333;
    --sao-text-light: #666;
    --sao-text-lighter: #999;
    --sao-border: #D6E4F0;
}

body {
    color: var(--sao-text);
    background: #fff;
    line-height: 1.6;
}

.sao-banner {
    width: 100%;
    height: 540px;
    margin-top: 86px;
    position: relative;
    overflow: hidden;
    background: #B71C1C;
}
.sao-banner-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease, visibility 1s ease;
}
.sao-banner-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.sao-banner-item.active {
    opacity: 1;
    visibility: visible;
    z-index: 1;
}
.sao-banner-side-text {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 60px;
    background: linear-gradient(90deg, transparent, rgba(183, 28, 28, 0.9));
    writing-mode: vertical-rl;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: bold;
    color: #fff;
    letter-spacing: 12px;
    padding: 40px 0;
    z-index: 2;
}
.sao-banner-content {
    position: absolute;
    top: 50%;
    left: 10%;
    transform: translateY(-50%);
    z-index: 2;
    color: #fff;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}
.sao-banner-content h1 {
    font-size: 64px;
    font-weight: bold;
    letter-spacing: 10px;
    margin-bottom: 16px;
    line-height: 1.1;
}
.sao-banner-content p {
    font-size: 20px;
    letter-spacing: 4px;
    opacity: 0.95;
    margin-left: 6px;
}
.sao-banner-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(0, 0, 0, 0.35) 0%, transparent 50%);
}
.sao-banner-dots {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
    align-items: center;
}
.sao-dot {
    width: 36px;
    height: 6px;
    border-radius: 3px;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.3s;
}
.sao-dot.active {
    background: #fff;
    width: 48px;
}

.sao-main {
    max-width: 100%;
    background: #fff;
    margin-top: 110px;
}

.sao-section {
    max-width: 1280px;
    margin: 0 auto;
    padding: 40px 20px;
}

.sao-section-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}
.sao-section-title {
    font-size: 22px;
    font-weight: normal;
    color: var(--sao-primary);
    position: relative;
    padding-left: 14px;
    border-left: 3px solid var(--sao-primary);
}
.sao-more-link {
    display: inline-block;
    font-size: 13px;
    color: var(--sao-primary);
    transition: all 0.3s;
}
.sao-more-link:hover {
    color: var(--sao-primary-dark);
    padding-right: 4px;
}

.sao-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.sao-news-card {
    display: block;
    position: relative;
    background: #fff;
    border: 1px solid var(--sao-border);
    border-radius: 4px;
    overflow: hidden;
    transition: all 0.35s ease;
    padding-bottom: 12px;
}
.sao-news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 28px rgba(0, 120, 215, 0.15);
    border-color: var(--sao-primary-light);
}
.sao-card-img {
    width: 100%;
    height: 200px;
    overflow: hidden;
    margin-bottom: 14px;
}
.sao-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.sao-news-card:hover .sao-card-img img {
    transform: scale(1.06);
}
.sao-news-card h4 {
    font-size: 17px;
    font-weight: 500;
    color: #333;
    padding: 0 16px 10px;
    line-height: 1.4;
    transition: color 0.3s;
}
.sao-news-card:hover h4 {
    color: var(--sao-primary-dark);
}
.sao-news-card p {
    font-size: 15px;
    color: var(--sao-text-light);
    line-height: 1.8;
    padding: 0 16px;
    margin-bottom: 30px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}
.sao-card-arrow {
    position: absolute;
    bottom: 14px;
    right: 16px;
    color: var(--sao-primary);
    font-size: 14px;
    font-weight: bold;
    transition: all 0.3s;
}
.sao-news-card:hover .sao-card-arrow {
    transform: translateX(4px);
    color: var(--sao-primary-dark);
}

.sao-mixed-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 30px;
    align-items: stretch;
}
.sao-left-slider {
    position: relative;
    width: 100%;
    /* height: 340px; */
    height: 100%;
    overflow: hidden;
    border-radius: 6px;
}
.sao-left-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    visibility: hidden;
    transition: all 0.7s ease;
}
.sao-left-slide.active {
    opacity: 1;
    visibility: visible;
}
.sao-left-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sao-left-slide-text {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 46px 70px 18px 20px;
    background: linear-gradient(to top, rgba(0, 25, 55, 0.88) 0%, rgba(0, 25, 55, 0.55) 55%, transparent 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}
.sao-left-slide-tag {
    display: inline-block;
    font-size: 12px;
    line-height: 1;
    padding: 5px 10px;
    margin-bottom: 10px;
    color: #fff;
    background: var(--sao-primary);
    border-radius: 3px;
    letter-spacing: 2px;
}
.sao-left-slide-text h3 {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    transition: color 0.3s;
}
.sao-left-slide-text p {
    font-size: 13px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.85);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.sao-left-slider:hover .sao-left-slide-text h3 {
    color: #FFD98A;
}

.sao-left-dots {
    position: absolute;
    bottom: 18px;
    right: 14px;
    display: flex;
    gap: 8px;
    z-index: 3;
}
.sao-left-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s;
}
.sao-left-dot.active {
    background: #fff;
    transform: scale(1.2);
}

.sao-right-news-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.sao-right-news-list > a {
    display: flex;
    gap: 16px;
    padding: 12px;
    background: var(--sao-primary-soft);
    border-radius: 6px;
    transition: all 0.3s;
    flex: 1;
}
.sao-right-news-list > a:hover {
    background: #fff;
    box-shadow: 0 4px 14px rgba(0, 120, 215, 0.1);
    transform: translateX(3px);
}
.sao-right-date {
    flex-shrink: 0;
    width: 80px;
    text-align: center;
    background: #fff;
    border-radius: 6px;
    padding: 6px 4px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.sao-right-day {
    font-size: 30px;
    font-weight: bold;
    color: var(--sao-primary);
    line-height: 1;
    margin-bottom: 4px;
}
.sao-right-month {
    font-size: 12px;
    color: var(--sao-text-light);
}
.sao-right-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}
.sao-right-content h4 {
    font-size: 17px;
    font-weight: 500;
    color: #333;
    margin-bottom: 6px;
    line-height: 1.4;
    transition: color 0.3s;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.sao-right-news-list > a:hover .sao-right-content h4 {
    color: var(--sao-primary-dark);
}
.sao-right-content h4 a {
    color: inherit;
}
.sao-right-content p {
    font-size: 15px;
    color: var(--sao-text-light);
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.sao-showcase-scroll {
    overflow: hidden;
    position: relative;
    width: 100%;
}
.sao-showcase-track {
    display: flex;
    gap: 20px;
    animation: sao-scroll-left 32s linear infinite;
    width: max-content;
    padding: 20px;
}
.sao-showcase-scroll:hover .sao-showcase-track {
    animation-play-state: paused;
}
@keyframes sao-scroll-left {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
.sao-showcase-item {
    flex-shrink: 0;
    width: 380px;
    max-width: 400px;
    transition: all 0.3s ease;
    display: block;
    border-radius: 4px;
    overflow: hidden;
}
.sao-showcase-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 26px rgba(0, 120, 215, 0.18);
}
.sao-showcase-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.sao-showcase-item:hover img {
    transform: scale(1.06);
}
.sao-showcase-item p {
    font-size: 15px;
    color: #333;
    margin: 12px 14px;
    background: #fff;
    border-top: 1px solid var(--sao-border);
    line-height: 1.5;
    transition: color 0.3s;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.sao-showcase-item:hover p {
    color: var(--sao-primary-dark);
}

.sao-quick-title {
    margin-bottom: 18px;
    display: inline-block;
}
.sao-quick-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    border-top: 1px solid #eee;
    padding-top: 24px;
}
.sao-quick-left {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.sao-quick-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 6px 0;
}
.sao-quick-list li {
    margin-right: 18px;
    width: 103px;
}
.sao-quick-list li a {
    font-size: 17px;
    color: #444;
    transition: color 0.3s;
    padding: 4px 2px;
    border-bottom: 1px solid transparent;
}

.sao-quick-list li a:hover {
    color: var(--sao-primary-dark);
    border-bottom-color: var(--sao-primary-light);
}

.sao-quick-right {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.sao-quick-img {
    display: block;
    border-radius: 4px;
    overflow: hidden;
    transition: all 0.3s;
    border: 1px solid var(--sao-border);
}
.sao-quick-img:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 18px rgba(0, 120, 215, 0.12);
    border-color: var(--sao-primary-light);
}
.sao-quick-img img {
    width: 100%;
    height: 140px;
    object-fit: fill;
    transition: transform 0.5s ease;
}
.sao-quick-img:hover img {
    transform: scale(1.06);
}

.sao-footer {
    background: var(--sao-primary);
    color: #fff;
    margin-top: 10px;
}
.sao-footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px 20px 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 20px;
}
.sao-footer-qr {
    display: flex;
    justify-content: center;
    gap: 20px;
}
.sao-qr-item {
    text-align: center;
}
.sao-qr-item img {
    width: 90px;
    height: 90px;
    background: #fff;
    padding: 5px;
    border-radius: 6px;
    margin: 0 auto 8px;
    object-fit: contain;
}
.sao-qr-item span {
    font-size: 12px;
    color: rgba(255,255,255,0.9);
}
.sao-footer-center {
    display: flex;
    justify-content: center;
}
.sao-footer-logo {
    display: flex;
    align-items: center;
    gap: 14px;
}
.sao-footer-logo img {
    height: 80px;
    /* background: #fff; */
    padding: 4px 8px;
    border-radius: 4px;
}
.sao-footer-title {
    display: flex;
    flex-direction: column;
    gap: 2px;
    text-align: left;
}
.sao-footer-title h3 {
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 1px;
}
.sao-footer-title h4 {
    font-size: 28px;
    font-weight: bold;
    letter-spacing: 4px;
}
.sao-footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.15);
    margin-top: 18px;
    padding: 10px 20px;
    text-align: center;
}
.sao-footer-bottom p {
    font-size: 12px;
    color: rgba(255,255,255,0.85);
    line-height: 1.6;
}

@media (max-width: 1200px) {
    .sao-banner { height: 460px; }
    .sao-banner-content h1 { font-size: 52px; letter-spacing: 6px; }
    .sao-banner-content p { font-size: 17px; }
    .sao-cards-grid { gap: 18px; }
    .sao-card-img { height: 180px; }
    .sao-mixed-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
    .sao-left-slider { height: 300px; }
    .sao-showcase-item { width: 340px; }
    .sao-showcase-item img { height: 160px; }
    .sao-footer-inner { grid-template-columns: 1fr 1fr; }
    .sao-footer-title h3 { font-size: 18px; }
    .sao-footer-title h4 { font-size: 24px; }
}

@media (max-width: 992px) {
    .sao-banner { height: 380px; margin-top: 82px; }
    .sao-banner-content h1 { font-size: 40px; letter-spacing: 4px; }
    .sao-banner-content p { font-size: 15px; letter-spacing: 2px; }
    .sao-section { padding: 30px 16px; }
    .sao-cards-grid { grid-template-columns: 1fr; gap: 16px; }
    .sao-card-img { height: 220px; }
    .sao-mixed-grid { grid-template-columns: 1fr; gap: 20px; }
    .sao-left-slider { height: 320px; }
    .sao-showcase-item { width: 280px; }
    .sao-showcase-item img { height: 140px; }
    .sao-quick-grid { grid-template-columns: 1fr; gap: 20px; }
    .sao-quick-img img { height: 160px; }
    .sao-footer-inner { grid-template-columns: 1fr 1fr; }
    .sao-footer-center { order: -1; grid-column: 1 / -1; }
    .sao-footer-title h3 { font-size: 16px; }
    .sao-footer-title h4 { font-size: 22px; }
}

@media (max-width: 768px) {

    .sao-banner { height: 280px; margin-top: 58px; }
    .sao-banner-content { left: 6%; }
    .sao-banner-content h1 { font-size: 30px; letter-spacing: 3px; margin-bottom: 8px; }
    .sao-banner-content p { font-size: 13px; letter-spacing: 1px; }
    .sao-banner-dots { gap: 8px; bottom: 16px; }
    .sao-dot { width: 28px; height: 5px; }
    .sao-dot.active { width: 40px; }
    .sao-banner-side-text { width: 44px; font-size: 24px; letter-spacing: 8px; }

    .sao-section { padding: 24px 14px; }
    .sao-section-title { font-size: 19px; }
    .sao-card-img { height: 180px; }
    .sao-news-card h4 { font-size: 17px; }
    .sao-news-card p { font-size: 15px; }
    .sao-left-slider { height: 240px; }
    .sao-left-slide-text { padding: 36px 60px 14px 14px; }
    .sao-left-slide-text h3 { font-size: 17px; }
    .sao-left-slide-text p { font-size: 15px; }
    .sao-left-slide-tag { font-size: 11px; padding: 4px 8px; margin-bottom: 6px; letter-spacing: 1px; }
    .sao-left-dots { bottom: 14px; right: 10px; }
    .sao-right-news-list > a { padding: 10px; gap: 12px; }
    .sao-right-date { width: 68px; }
    .sao-right-day { font-size: 24px; }
    .sao-right-content h4 { font-size: 17px; }
    .sao-right-content p { font-size: 15px; }
    .sao-showcase-item { width: 230px; }
    .sao-showcase-item img { height: 120px; }
    .sao-showcase-item p { font-size: 15px; }
    .sao-quick-grid { padding-top: 18px; gap: 16px; }
    .sao-quick-list li { margin-right: 14px; }
    .sao-quick-list li a { font-size: 15px; }
    .sao-quick-right { gap: 10px; }
    .sao-quick-img img { height: 120px; }

    .sao-footer-inner { grid-template-columns: 1fr 1fr; gap: 16px; padding: 20px 16px 0; }
    .sao-footer-center { grid-column: 1 / -1; }
    .sao-footer-logo { gap: 10px; }
    .sao-footer-logo img { height: 60px; }
    .sao-footer-title h3 { font-size: 15px; }
    .sao-footer-title h4 { font-size: 20px; letter-spacing: 2px; }
    .sao-qr-item img { width: 76px; height: 76px; }
    .sao-footer-bottom { padding: 10px 16px; }
}

@media (max-width: 480px) {

    .sao-banner { height: 220px; margin-top: 50px; }
    .sao-banner-content h1 { font-size: 24px; letter-spacing: 2px; }
    .sao-banner-content p { font-size: 12px; }
    .sao-banner-side-text { width: 36px; font-size: 18px; letter-spacing: 6px; }
    .sao-dot { width: 22px; height: 4px; }
    .sao-dot.active { width: 32px; }

    .sao-section { padding: 20px 12px; }
    .sao-section-title { font-size: 18px; padding-left: 12px; }
    .sao-card-img { height: 160px; }
    .sao-news-card h4 { font-size: 17px; padding: 0 14px 8px; }
    .sao-news-card p { font-size: 15px; padding: 0 14px; }
    .sao-left-slider { height: 200px; }
    .sao-left-slide-text { padding: 30px 50px 12px 12px; }
    .sao-left-slide-text p { display: none; }
    .sao-left-slide-text h3 { font-size: 17px; margin-bottom: 0; }
    .sao-right-date { width: 60px; padding: 5px 3px; }
    .sao-right-day { font-size: 22px; }
    .sao-right-content h4 { font-size: 17px; }
    .sao-showcase-item { width: 200px; }
    .sao-showcase-item img { height: 110px; }
    .sao-showcase-item p { font-size: 15px;}
    .sao-quick-grid { padding-top: 16px; gap: 14px; }
    .sao-quick-list li { margin-right: 12px; }
    .sao-quick-list li a { font-size: 15px; }
    .sao-quick-img img { height: 100px; }

    .sao-footer-inner { grid-template-columns: 1fr; gap: 14px; padding: 16px 12px 0; }
    .sao-footer-logo { gap: 8px; }
    .sao-footer-logo img { height: 60px; }
    .sao-footer-title h3 { font-size: 14px; }
    .sao-footer-title h4 { font-size: 18px; letter-spacing: 1px; }
    .sao-qr-item img { width: 70px; height: 70px; }
    .sao-footer-bottom { padding: 10px 12px; }
    .sao-footer-bottom p { font-size: 11px; line-height: 1.7; }
}