/* ==================== 基础重置与变量 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

:root {
    --aia-red: #E4002B;
    --aia-red-dark: #C50024;
    --text-primary: #1a1a1a;
    --text-secondary: #666;
    --text-light: #999;
    --bg-light: #f5f5f5;
    --bg-white: #fff;
    --border-color: #e8e8e8;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

ul {
    list-style: none;
}

/* ==================== 顶部导航栏 ==================== */
.top-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--bg-white);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 14px;
    z-index: 1000;
    box-shadow: var(--shadow);
}

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

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

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

.header-contact-btn {
    padding: 8px 16px;
    background: var(--aia-red);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    border-radius: 20px;
    transition: all 0.2s;
}

.header-contact-btn:active {
    background: var(--aia-red-dark);
    transform: scale(0.97);
}

.header-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s;
}

.header-btn:active {
    background: rgba(0,0,0,0.06);
}

/* 汉堡菜单按钮 */
.menu-toggle {
    width: 36px;
    height: 36px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    position: relative;
}

.hamburger-line {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
}

/* ==================== 折叠导航栏 (侧滑菜单) ==================== */
.side-nav {
    position: fixed;
    top: 0;
    right: -85%;
    width: 85%;
    max-width: 340px;
    height: 100vh;
    background: var(--bg-white);
    z-index: 2000;
    transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -4px 0 20px rgba(0,0,0,0.15);
    overflow: hidden;
}

.side-nav.open {
    right: 0;
}

/* 一级菜单 */
.side-nav-main {
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform 0.3s ease;
}

.side-nav-main.hidden {
    display: none;
}

.side-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-white);
    flex-shrink: 0;
}

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

.side-nav-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

.side-nav-search,
.side-nav-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s;
}

.side-nav-search:active,
.side-nav-close:active {
    background: rgba(0,0,0,0.06);
}

.side-nav-body {
    flex: .9;
    overflow-y: auto;
    padding: 16px 0;
}

.side-nav-menu li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 400;
    transition: background 0.2s;
}

.side-nav-menu li a:active {
    background: #f5f5f5;
}

.menu-arrow {
    font-size: 20px;
    color: var(--text-light);
    font-weight: 300;
}

/* 侧滑菜单底部 */
.side-nav-footer {
    padding: 16px 20px 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-white);
    flex-shrink: 0;

}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.lang-item {
    font-size: 15px;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.lang-item.active {
    color: var(--text-primary);
    font-weight: 600;
}

.lang-divider {
    color: var(--border-color);
    font-size: 14px;
}

.side-nav-buttons {
    display: flex;
    gap: 10px;
}

.btn-login,
.btn-contact {
    flex: 1;
    padding: 12px 0;
    text-align: center;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-login {
    border: 1.5px solid var(--aia-red);
    color: var(--aia-red);
    background: var(--bg-white);
}

.btn-login:active {
    background: #fff0f2;
}

.btn-contact {
    background: var(--aia-red);
    color: #fff;
    border: 1.5px solid var(--aia-red);
}

.btn-contact:active {
    background: var(--aia-red-dark);
}

/* 二级子菜单 */
.side-nav-submenu {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-white);
    display: none;
    flex-direction: column;
    overflow: hidden;
}

.side-nav-submenu.active {
    display: flex;
}

.submenu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-white);
    flex-shrink: 0;
}

.submenu-back,
.submenu-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s;
}

.submenu-back:active,
.submenu-close:active {
    background: rgba(0,0,0,0.06);
}

.submenu-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.submenu-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px 0;
}

.submenu-tabs {
    display: flex;
    align-items: center;
    padding: 0 20px 16px;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.submenu-tab {
    font-size: 15px;
    color: var(--text-secondary);
    background: none;
    padding: 4px 0;
    transition: color 0.2s;
}

.submenu-tab.active {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 4px;
}

.submenu-tab-divider {
    color: var(--text-secondary);
    margin: 0 6px;
    font-size: 14px;
}

/* 手风琴折叠 */
.submenu-accordion {
    padding: 0 20px;
}

.accordion-item {
    border-bottom: 1px solid #f0f0f0;
}

.accordion-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 0;
    width: 100%;
    transition: background 0.2s;
}

.accordion-header:active {
    background: #f9f9f9;
}

.accordion-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.accordion-title {
    flex: 1;
    font-size: 17px;
    color: var(--text-primary);
    text-align: left;
}

.accordion-chevron {
    transition: transform 0.3s ease;
}

.accordion-chevron.rotated {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding-left: 46px;
}

.accordion-content.open {
    max-height: 300px;
    padding-bottom: 12px;
}

.accordion-content a {
    display: block;
    padding: 10px 0;
    font-size: 15px;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.accordion-content a:active {
    color: var(--aia-red);
}

/* 遮罩层 */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.45);
    z-index: 1500;
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s ease;
}

.nav-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* ==================== 主内容区 ==================== */
.main-content {
    padding-top: 56px;
}

.section {
    background: var(--bg-white);
    margin-bottom: 10px;
    padding: 20px 16px;
}

.section-header {
    margin-bottom: 16px;
}

.section-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.section-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 6px;
    line-height: 1.6;
}

/* ==================== Banner 轮播 ==================== */
.banner-slider {
    position: relative;
    overflow: hidden;
    background: var(--bg-white);
    margin-bottom: 10px;
}

.banner-item {
    display: none;
}

.banner-item.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

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

.banner-image-wrap {
    width: 100%;
    height: 280px;
    overflow: hidden;
    position: relative;
}

.banner-img {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
}

.banner-img-1 {
    background: linear-gradient(135deg, #E4002B 30%, transparent 30%),
                linear-gradient(105deg, transparent 60%, #E4002B 60%),
                linear-gradient(to bottom, #87CEEB 0%, #5BA3D0 100%);
    position: relative;
}

.banner-img-1::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-30%, -50%);
    width: 120px;
    height: 200px;
    background: rgba(255,255,255,0.25);
    border-radius: 4px;
}

.banner-img-1::after {
    content: '';
    position: absolute;
    right: 10%;
    top: 55%;
    width: 100px;
    height: 100px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
}

.banner-img-2 {
    background: linear-gradient(135deg, #E4002B 25%, transparent 25%),
                linear-gradient(to bottom, #87CEEB 0%, #5BA3D0 100%);
}

.banner-img-3 {
    background: linear-gradient(135deg, #E4002B 25%, transparent 25%),
                linear-gradient(to bottom, #87CEEB 0%, #5BA3D0 100%);
}

.banner-text-wrap {
    padding: 20px 16px 16px;
    background: var(--bg-white);
}

.banner-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 8px;
}

.banner-subtitle {
    font-size: 15px;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.banner-btn {
    display: block;
    width: 100%;
    padding: 14px 0;
    background: var(--aia-red);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    border-radius: 10px;
    text-align: center;
    transition: all 0.2s;
}

.banner-btn:active {
    background: var(--aia-red-dark);
    transform: scale(0.98);
}

.banner-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 16px 0;
    background: var(--bg-white);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ddd;
    cursor: pointer;
    transition: all 0.3s;
}

.dot.active {
    background: var(--aia-red);
    width: 20px;
    border-radius: 4px;
}

/* ==================== 探索我们的产品 ==================== */
.section-header.center {
    text-align: center;
}

.tab-nav.underline {
    display: flex;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.tab-nav.underline .tab-btn {
    flex: 1;
    padding: 12px 0;
    font-size: 16px;
    font-weight: 400;
    color: var(--text-secondary);
    background: none;
    border-radius: 0;
    position: relative;
    transition: all 0.2s;
}

.tab-nav.underline .tab-btn.active {
    color: var(--text-primary);
    background: none;
}

.tab-nav.underline .tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: #2E7D9A;
}

.product-list {
    display: none;
}

.product-list.active {
    display: block;
}

.product-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 4px;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s;
}

.product-row:last-child {
    border-bottom: none;
}

.product-row:active {
    background: #f9f9f9;
}

.product-icon-svg {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-icon-svg svg {
    width: 100%;
    height: 100%;
}

.product-text {
    flex: 1;
    font-size: 17px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.product-arrow {
    color: var(--aia-red);
    font-size: 20px;
    font-weight: 300;
}

/* ==================== 客户支援 ==================== */
.support-cards {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.support-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    border: 1px solid var(--border-color);
    transition: all 0.2s;
}

.support-card:active {
    background: #f9f9f9;
    transform: scale(0.99);
}

.support-card-icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.support-card-icon svg {
    width: 100%;
    height: 100%;
}

.support-card-text {
    flex: 1;
    font-size: 16px;
    color: var(--text-primary);
    line-height: 1.5;
    font-weight: 400;
}

/* ==================== 快捷网上服务 ==================== */
.online-services .section-desc {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 8px;
    line-height: 1.6;
}

.service-cards {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.service-card-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    border: 1px solid var(--border-color);
    transition: all 0.2s;
}

.service-card-row:active {
    background: #f9f9f9;
    transform: scale(0.99);
}

.service-card-icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-card-icon svg {
    width: 100%;
    height: 100%;
}

.service-card-text {
    flex: 1;
    font-size: 16px;
    color: var(--text-primary);
    line-height: 1.5;
    font-weight: 400;
}

/* ==================== 最近热话 ==================== */
.topic-tags {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 12px;
    margin-bottom: 4px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.topic-tags::-webkit-scrollbar {
    display: none;
}

.topic-tag {
    padding: 6px 14px;
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--bg-light);
    border-radius: 16px;
    white-space: nowrap;
    transition: all 0.2s;
}

.topic-tag.active {
    background: var(--aia-red);
    color: #fff;
}

.topic-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.topic-card {
    display: flex;
    gap: 14px;
    padding: 14px;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.2s;
}

.topic-card:active {
    background: #eee;
}

.topic-image {
    width: 80px;
    height: 80px;
    border-radius: 10px;
    flex-shrink: 0;
    background-size: cover;
    background-position: center;
}

.topic-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
}

.topic-label {
    font-size: 11px;
    color: var(--text-light);
    background: #fff;
    padding: 2px 8px;
    border-radius: 4px;
    display: inline-block;
    align-self: flex-start;
}

.topic-label.highlight {
    background: var(--aia-red);
    color: #fff;
}

.topic-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
}

.topic-desc {
    font-size: 13px;
    color: var(--text-secondary);
}

.view-more {
    display: block;
    text-align: center;
    padding: 14px 0 0;
    font-size: 14px;
    color: var(--aia-red);
    font-weight: 500;
}

/* ==================== AIA Vitality ==================== */
.vitality-card {
    background: linear-gradient(135deg, var(--aia-red), var(--aia-red-dark));
    border-radius: 16px;
    padding: 24px 20px;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    overflow: hidden;
    position: relative;
}

.vitality-tag {
    font-size: 12px;
    opacity: 0.85;
    margin-bottom: 6px;
    display: block;
}

.vitality-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 14px;
    line-height: 1.3;
}

.vitality-btn {
    display: inline-block;
    padding: 8px 18px;
    background: #fff;
    color: var(--aia-red);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    transition: all 0.2s;
}

.vitality-btn:active {
    transform: scale(0.96);
}

.vitality-image {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
}

.vitality-img-placeholder {
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
}

/* ==================== 企业及个人理财 ==================== */
.biz-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.biz-card {
    display: flex;
    gap: 14px;
    padding: 14px;
    background: var(--bg-light);
    border-radius: 12px;
    align-items: center;
    transition: all 0.2s;
}

.biz-card:active {
    background: #eee;
}

.biz-image {
    width: 70px;
    height: 70px;
    border-radius: 10px;
    flex-shrink: 0;
}

.biz-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.biz-tag {
    font-size: 11px;
    color: var(--text-light);
    background: #fff;
    padding: 2px 8px;
    border-radius: 4px;
    align-self: flex-start;
}

.biz-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.biz-link {
    font-size: 13px;
    color: var(--aia-red);
    font-weight: 500;
}

/* ==================== 特色图片区 ==================== */
.feature-image-section {
    padding: 0;
    overflow: hidden;
}

.feature-image {
    width: 100%;
    height: 180px;
    position: relative;
    overflow: hidden;
}

.feature-img-content {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ferris-wheel {
    width: 100px;
    height: 100px;
    border: 4px solid rgba(255,255,255,0.4);
    border-radius: 50%;
    position: relative;
}

.ferris-wheel::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background: rgba(255,255,255,0.6);
    border-radius: 50%;
}

.feature-quote {
    padding: 20px 16px;
}

.feature-quote h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.feature-quote p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 10px;
}

.feature-link {
    font-size: 14px;
    color: var(--aia-red);
    font-weight: 500;
}

/* ==================== 发展抱负 ==================== */
.aspiration-section {
    padding: 0;
    overflow: hidden;
}

.aspiration-card {
    position: relative;
}

.aspiration-image {
    width: 100%;
    height: 160px;
}

.aspiration-content {
    padding: 20px 16px;
    background: var(--bg-white);
}

.aspiration-content h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.aspiration-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 10px;
}

.aspiration-link {
    font-size: 14px;
    color: var(--aia-red);
    font-weight: 500;
}

/* ==================== App 下载 ==================== */
.app-download {
    background: var(--bg-white);
}

.app-card {
    text-align: center;
}

.app-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.app-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.app-stores {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
}

.store-badges {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.store-badge {
    padding: 8px 16px;
    background: var(--text-primary);
    color: #fff;
    font-size: 12px;
    border-radius: 6px;
    text-align: center;
    min-width: 110px;
}

.qr-code {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
}

.qr-placeholder {
    width: 100%;
    height: 100%;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--text-secondary);
}

.app-phone-mockup {
    margin-top: 16px;
}

.phone-mockup {
    width: 140px;
    height: 200px;
    background: linear-gradient(135deg, var(--aia-red), var(--aia-red-dark));
    border-radius: 16px;
    margin: 0 auto;
    position: relative;
    box-shadow: 0 8px 24px rgba(228,0,43,0.25);
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 4px;
    background: rgba(255,255,255,0.3);
    border-radius: 2px;
}

/* ==================== 新职称 ==================== */
.news-item {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.news-date {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 4px;
    display: block;
}

.news-text {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.5;
}

/* ==================== 页脚 ==================== */
.main-footer {
    background: #3a3f47;
    padding: 24px 16px 40px;
    color: #fff;
}

.footer-region-tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.15);
}

.footer-tab {
    flex: 1;
    padding: 12px 0;
    font-size: 16px;
    color: rgba(255,255,255,0.6);
    background: none;
    position: relative;
    transition: all 0.2s;
}

.footer-tab.active {
    color: #fff;
}

.footer-tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: #5ba3c0;
}

.footer-hotlines {
    margin-bottom: 24px;
}

.hotline-group {
    margin-bottom: 16px;
}

.hotline-label {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 4px;
}

.hotline-type {
    font-size: 14px;
    color: rgba(255,255,255,0.8);
    margin-bottom: 2px;
}

.hotline-number {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
}

.footer-service-center {
    margin-bottom: 20px;
}

.footer-service-center h4 {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 8px;
}

.footer-service-center p {
    font-size: 14px;
    color: rgba(255,255,255,0.8);
    line-height: 1.6;
}

.footer-address {
    margin-bottom: 20px;
}

.footer-address h4 {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 4px;
}

.footer-address p {
    font-size: 14px;
    color: rgba(255,255,255,0.8);
    line-height: 1.6;
}

.footer-divider {
    height: 1px;
    background: rgba(255,255,255,0.15);
    margin: 20px 0;
}

.footer-region-select {
    margin-bottom: 20px;
}

.footer-region-select select {
    width: 100%;
    padding: 14px 16px;
    font-size: 16px;
    color: #fff;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 6px;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.footer-links-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 24px;
    font-size: 13px;
}

.footer-links-row a {
    color: rgba(255,255,255,0.7);
    transition: color 0.2s;
}

.footer-links-row a:hover {
    color: #fff;
}

.footer-links-row span {
    color: rgba(255,255,255,0.3);
}

.footer-social {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.2s;
}

.social-icon:active {
    background: rgba(255,255,255,0.1);
}

.footer-copyright p {
    font-size: 12px;
    color: rgba(255,255,255,0.5);
    line-height: 1.7;
}

/* ==================== 响应式适配 ==================== */
@media (min-width: 480px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .product-card.wide {
        grid-column: span 1;
        flex-direction: column;
        justify-content: center;
    }
    .product-card.wide .product-name {
        text-align: center;
    }
}