/* General Body Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 70vw;
    width: 100%;
    margin: 0 auto;
    padding: 0 1.042vw;
}

/* Header */
header {
    background: #fff;
    padding: 0.781vw 0;
    border-bottom: 0.052vw solid #e9ecef;
    height: 5.208vw;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 1.25vw;
}

.logo img {
    width: 2.188vw;
    height: 2.188vw;
}

.logo-text {
    display: flex;
    flex-direction: column;
    gap: 0.417vw;
}

.chinese-name {
    font-size: 1.354vw;
    font-weight: bold;
    color: #FE6901;
    line-height: 1;
}

nav {
    display: flex;
    align-items: center;
    gap: 5.469vw;
}

nav a {
    color: #9A9A9A;
    text-decoration: none;
    font-size: 0.938vw;
    font-weight: 500;
    transition: color 0.3s ease;
    white-space: nowrap;
}

nav a:hover {
    color: #0067E3;
}

/* Hero Section */
.hero {
    background: url('img/hero-banner.webp') no-repeat center center/cover;
    color: #fff;
    text-align: center;
    height: 35.417vw;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 3.75vw 0 0 0;
    position: relative;
    overflow: hidden;
}

.hero h1 {
    font-size: 3.542vw;
    margin-bottom: 1.042vw;
    color: #5C2104;
}

.hero h2 {
    font-size: 2.188vw;
    margin: 0 auto;
    line-height: 2;
    color: #72390F;
    font-weight: 400;
    margin-bottom: 3.125vw;
}

.hero-image {
    height: 8.125vw;
    width: auto;
    display: block;
    margin: 0 auto;
}

/* Strength Section */
.strength {
    background: #f8f9fa;
    padding: 2vw 0;
    position: relative;
}

.strength h2 {
    font-size: 2.188vw;
    color: #333333;
    font-weight: bold;
    text-align: center;
    margin-bottom: 4vw;
}

.strength-content {
    position: relative;
    width: 100%;
    height: 45vw;
    display: flex;
    justify-content: center;
    align-items: center;
}

.strength-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.strength-background img {
    position: absolute;
}

.strength-background .bg-left {
    left: 20%;
    top: 50%;
    transform: translateY(-50%);
    width: 8.854vw;
    height: 32.292vw;
}

.strength-background .bg-right {
    right: 15.75%;
    top: 45%;
    transform: translateY(-50%);
    width: 11.927vw;
    height: 31.563vw;
}

.strength-background .bg-base {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 22.595vw;
    height: auto;
}

.strength-background .bg-circle {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 15.072vw;
    height: auto;
}

.strength-background .bg-ball {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8.802vw;
    height: auto;
}

.strength-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10vw;
    height: 10vw;
    background: linear-gradient(135deg, #FFB84D 0%, #FF8C1A 100%);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    box-shadow: 0 0.521vw 2.083vw rgba(255, 140, 26, 0.4);
}

.core-text {
    color: #FFFFFF;
    font-size: 1.458vw;
    font-weight: bold;
    text-align: center;
    line-height: 1.6;
}

.strength-items {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.strength-item {
    position: absolute;
    z-index: 5;
}

.item-icon {
    width: 4.583vw;
    height: 4.583vw;
    background: #FFFFFF;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0.26vw 1.042vw rgba(0, 0, 0, 0.1);
}

.item-icon img {
    width: 3.5vw;
    height: 3.5vw;
    display: block;
}

.strength-contents {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.item-content {
    position: absolute;
    max-width: 13vw;
    z-index: 5;
}

.item-content h3 {
    font-size: 1.042vw;
    color: #FF731F;
    font-weight: bold;
    margin: 0 0 0.521vw 0;
}

.item-content p {
    font-size: 0.833vw;
    color: #666666;
    line-height: 1.6;
    margin: 0;
}

/* 左侧半月弧 - 4个图标 */
.item-1 {
    top: 25%;
    left: 36%;
}

.item-3 {
    top: 40%;
    left: 30%;
}

.item-5 {
    bottom: 32%;
    left: 31%;
}

.item-7 {
    bottom: 20%;
    left: 40%;
}

/* 右侧半月弧 - 4个图标 */
.item-2 {
    top: 25%;
    right: 36%;
}

.item-4 {
    top: 40%;
    right: 30%;
}

.item-6 {
    bottom: 32%;
    right: 31%;
}

.item-8 {
    bottom: 20%;
    right: 40%;
}

/* 左侧文字内容 */
.content-1 {
    top: 18%;
    left: 2%;
    text-align: right;
}

.content-3 {
    top: 36%;
    left: -4%;
    text-align: right;
}

.content-5 {
    bottom: 35%;
    left: -4%;
    text-align: right;
}

.content-7 {
    bottom: 17%;
    left: 2%;
    text-align: right;
}

/* 右侧文字内容 */
.content-2 {
    top: 18%;
    right: 0%;
    text-align: left;
}

.content-4 {
    top: 36%;
    right: -6%;
    text-align: left;
}

.content-6 {
    bottom: 35%;
    right: -6%;
    text-align: left;
}

.content-8 {
    bottom: 17%;
    right: 0%;
    text-align: left;
}

/* Audience Section */
.audience {
    background: #f2f5fa;
    position: relative;
    height: 32.552vw;
    display: flex;
    justify-content: center;
    align-items: center;
}

.audience h2 {
    font-size: 2.188vw;
    color: #333333;
    font-weight: bold;
    text-align: center;
    margin-bottom: 3.125vw;
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.75vw;
    max-width: 100%;
}

.audience-card {
    background: #FFFFFF;
    border-radius: 0.521vw;
    padding: 2.083vw 1.75vw 1.693vw 1.75vw;
    text-align: center;
    box-shadow: 0 0.26vw 1.042vw rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    min-height: 11vw;
    box-sizing: border-box;
    height: 8.854vw;
    width: 16.146vw;
}

.audience-card:hover {
    transform: translateY(-0.521vw);
    box-shadow: 0 0.521vw 1.563vw rgba(0, 0, 0, 0.12);
}

.audience-card h3 {
    font-size: 1.25vw;
    color: #FF731F;
    font-weight: 500;
    margin: 0 0 1.302vw;
    padding-bottom: 1.042vw;
    border-bottom: 0.052vw solid #B4B4B4;
    width: 100%;
    text-align: left;
}

.audience-card p {
    font-size: 0.938vw;
    color: #797979;
    line-height: 1.6;
    margin: 0;
    text-align: left;
}

/* Features Section */
.features {
    padding: 5.156vw 0;
    background-color: #FFFFFF;
}

.features h2 {
    font-size: 2.188vw;
    color: #333333;
    font-weight: bold;
    text-align: center;
    margin-bottom: 3.125vw;
}

.features-content {
    display: flex;
    gap: 3.125vw;
    align-items: stretch;
}

.features-text {
    flex: 1;
    color: #666666;
}

.features-intro {
    font-size: 0.938vw;
    line-height: 1.8;
    color: #797979;
    font-weight: 400;
    margin: 0 0 2.083vw 0;
}

.features-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.563vw;
}

.feature-item:last-child {
    margin-bottom: 0;
}

.feature-icon {
    margin-right: 0.833vw;
    margin-top: 0.26vw;
    flex-shrink: 0;
}

.feature-icon img {
    width: 0.833vw;
    height: 0.833vw;
    display: block;
}

.feature-content {
    flex: 1;
}

.feature-content h3 {
    font-size: 1.146vw;
    color: #666666;
    font-weight: bold;
    margin: 0 0 0.521vw 0;
    line-height: 1.4;
}

.feature-content p {
    font-size: 0.938vw;
    color: #888888;
    line-height: 1.6;
    margin: 0;
}

.features-image {
    flex: 0 0 34.167vw;
    display: flex;
    align-items: stretch;
}

.features-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Footer */
footer {
    background-color: #2C2C2C;
    color: #999999;
    padding: 3.385vw 0 2.135vw;
}

.footer-wrapper {
    display: flex;
    justify-content: space-between;
    gap: 2.083vw;
    flex-wrap: wrap;
    border-bottom: 0.052vw solid #BBBBBB;
    padding-bottom: 2.083vw;
}

.footer-info h4,
.footer-contact h4 {
    margin-top: 0px;
    color: #FF731F;
    margin-bottom: 1.667vw;
    font-size: 0.833vw;
}

.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links ul li {
    margin-bottom: 0.521vw;
}

.footer-links ul li:last-child {
    margin-bottom: 0;
}

.footer-links ul li a {
    font-size: 0.833vw;
    color: #FF731F;
    text-decoration: none;
    line-height: 2;
    transition: color 0.3s ease;
}

.footer-links ul li a:hover {
    color: #FFFFFF;
}

.footer-info p {
    font-size: 0.729vw;
    color: #BCBEC6;
    line-height: 2;
    margin: 0;
}

.footer-contact p {
    margin: 0 0 0.521vw;
    font-size: 0.729vw;
    color: #BCBEC6;
}

.copyright {
    text-align: center;
    margin-top: 1.771vw;
    font-size: 0.625vw;
    color: #BCBEC6;
}

.copyright p {
    margin: 0.26vw 0;
    font-size: 0.729vw;
}

.copyright a {
    text-decoration: none;
    color: #BCBEC6;
    font-size: 0.729vw;
}