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

html {
    font-size: clamp(14px, 0.9vw, 16px);
}

body {
    font-family: 'Urbanist', 'Arial', sans-serif;
    min-width: 1024px;
}

/* 页脚主区域 */
.f-footer {
    background: #2C61AD;
    padding: clamp(40px, 3.5vw, 50px) 0 0;
}

.f-footer-container {
    width: 80%;
    margin: 0 auto;
    padding: 0 clamp(15px, 1.4vw, 20px);
    display: flex;
    justify-content: space-between;
    gap: clamp(40px, 3.5vw, 60px);
}

@media (max-width: 1500px) {
    .f-footer-container {
        width: 95%;
    }
}

/* 左侧 Logo 和联系信息 */
.f-footer-left {
    flex: 0 0 clamp(240px, 19vw, 280px);
}

.f-footer-logo {
    width: clamp(85px, 6.9vw, 100px);
    height: clamp(85px, 6.9vw, 100px);
    margin-bottom: clamp(20px, 1.7vw, 25px);
}

.f-footer-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.f-footer-contact {
    color: #fff;
    font-size: clamp(14px, 1vw, 16px);
    line-height: 1.4;
    font-weight: bold;
}

.f-footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 8px;
}

.f-footer-contact-item i {
    font-size: clamp(9px, 0.7vw, 10px);
    margin-top: 5px;
    color: #fff;
}

/* 中间链接区域 */
.f-footer-links {
    display: flex;
    gap: clamp(60px, 4.2vw, 80px);
    flex: 1;
    font-size: clamp(18px, 1.25vw, 20px);
    justify-content: space-around
}

.f-footer-col {
    display: flex;
    flex-direction: column;
}

.f-footer-title {
    color: #fff;
    font-weight: 600;
    margin-bottom: clamp(10px, 0.85vw, 12px);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: bold;
}

.f-footer-link {
    color: #fff;
    text-decoration: none;
    margin-bottom: clamp(10px, 1.07vw, 20px);
    transition: color 0.3s;
    font-weight: 500;
    text-decoration: none !important;
}

.f-footer-link:hover {
    color: #ebaf1d;
}

/* 右侧订阅区域 */
.f-footer-right {
    flex: 0 0 300px;
}

.f-subscribe-form {
    display: flex;
    width: 100%;
    margin-bottom: clamp(10px, 1.4vw, 15px);
}

.f-subscribe-input {
    flex: 1;
    padding: clamp(2px, 0.3vw, 2px) clamp(12px, 1vw, 15px);
    width: clamp(150px, 5.4vw, 200px);
    height: clamp(30px, 2.6vw, 35px);
    border: none;
    border-radius: 7.5px 0 0 7.5px;
    font-size: clamp(14px, 0.9vw, 15px);
    outline: none;
    background-color: #fff;
}

.f-subscribe-input::placeholder {
    color: #929292;
}

.f-subscribe-btn {
    width: clamp(60px, 100px, 100px);
    height: clamp(30px, 2.6vw, 35px);
    background: #ebaf1d;
    color: #2b61ac;
    border: none;
    border-radius: 0 7.5px 7.5px 0;
    font-size: clamp(14px, 0.75vw, 16px);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.f-subscribe-btn:hover {
    background: #ffb300;
}

/* 社交按钮 */
.f-social-buttons {
    display: flex;
    flex-direction: column;
    gap: clamp(10px, 1.4vw, 15px);
    margin-bottom: clamp(16px, 1.4vw, 20px);
}

.f-social-btn {
    width: 100%;
    height: clamp(30px, 2.6vw, 35px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 7.5px;
    color: #fff;
    font-size: clamp(16px, 1vw, 18px);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none !important;
}

.f-social-btn > span {
    color: #EBAF1D;
}

.f-social-btn:hover {
    background: #EBAF1D;
    border-color: #fff;
}

.f-social-btn:hover span {
    color: #2b61ac;
}

/* 社交图标 */
.f-social-icons {
    display: flex;
    justify-content: space-between;
}

.f-social-icon {
    width: clamp(28px, 2.2vw, 40px);
    height: clamp(28px, 2.2vw, 40px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.f-social-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: opacity 0.3s ease, transform 0.3s ease;
    position: absolute;
}

.f-social-icon img:first-child {
    opacity: 1;
}

.f-social-icon img:last-child {
    opacity: 0;
}

.f-social-icon:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    transform: translateY(-4px);
}

.f-social-icon:hover img:first-child {
    opacity: 0;
}

.f-social-icon:hover img:last-child {
    opacity: 1;
}

/* 底部版权区域 */
.f-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    margin-top: clamp(40px, 3.5vw, 50px);
    padding: clamp(20px, 1.7vw, 25px) 0;
}

.f-footer-bottom-container {
    max-width: 80%;
    margin: 0 auto;
    padding: 0 clamp(15px, 1.4vw, 20px);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.f-copyright {
    color: rgba(255, 255, 255, 0.8);
    font-size: clamp(18px, 1.25vw, 20px);
}

.f-payment-icons {
    display: flex;
    gap: clamp(8px, 0.7vw, 10px);
    align-items: center;
}

.f-payment-icon {
    height: clamp(24px, 1.9vw, 28px);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.f-payment-icon img {
    height: 100%;
    object-fit: contain;
}

.f-payment-icon svg {
    max-height: 2.5em;
    min-height: 2.5em;
    height: 8vw;
    aspect-ratio: 86 / 59;
}