:root {
    --header-bg: #7BA7F0;
    --banner-bg-start: #E8F0FE;
    --banner-bg-end: #F5F8FF;
    --primary-blue: #5BA3F0;
    --tag-blue: #1890FF;
    --tag-orange: #FA8C16;
    --tag-green: #52C41A;
    --text-dark: #333333;
    --text-gray: #666666;
    --border-color: #E0E0E0;
}

@property --rx {
    syntax: '<percentage>';
    inherits: false;
    initial-value: 0%;
}
@property --ry {
    syntax: '<percentage>';
    inherits: false;
    initial-value: 0%;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    touch-action: manipulation;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
}

.page-wrapper {
    width: 80%;
    margin: 0 auto;
}

.section-container {
    width: 80%;
    margin: 0 auto;
}

/* Header - 磨砂玻璃效果 */
header {
    background: rgba(123, 167, 240, 0.35);
    padding: 0 80px;
    height: 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

header::before {
    content: '';
    position: absolute;
    inset: 0;
    backdrop-filter: blur(30px) saturate(200%);
    -webkit-backdrop-filter: blur(30px) saturate(200%);
    z-index: -1;
    pointer-events: none;
}

body {
    padding-top: 50px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 60px;
}

.logo {
    font-weight: bold;
    font-size: 16px;
    color: var(--text-dark);
    white-space: nowrap;
}

nav {
    display: flex;
    gap: 35px;
}

nav a {
    color: white;
    text-decoration: none;
    font-size: 15px;
}

nav a:hover {
    opacity: 0.8;
}

.nav-content {
    display: flex;
    gap: 35px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.register-btn {
    color: white;
    text-decoration: none;
    font-size: 14px;
}

.user-center-btn {
    background-color: var(--primary-blue);
    color: white;
    border: none;
    padding: 6px 24px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

/* Banner */
.banner {
    position: relative;
    padding: 60px 80px;
    display: flex;
    justify-content: flex-start;
    overflow: hidden;
}

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
    transition: opacity 0.6s ease;
}

.banner-bg-1 {
    opacity: 1;
}

.banner-bg-2 {
    opacity: 0;
}

.banner-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: flex-start;
    gap: 0;
    width: 100%;
}

.banner-right-block {
    display: flex;
    align-items: flex-start;
    gap: 0;
    width: 75%;
}

.banner-menu {
    width: 25%;
    flex-shrink: 0;
    display: flex;
    justify-content: flex-end;
    border-right: 2px solid white;
}

.banner-menu ul {
    list-style: none;
    width: auto;
}

.banner-menu li {
    padding: 24px 16px;
    font-size: 14px;
    font-weight: bold;
    color: var(--text-dark);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

.banner-menu li.active {
    background-color: rgba(91, 163, 240, 0.08);
    color: var(--primary-blue);
    border-right: 2px solid var(--primary-blue);
    margin-right: -2px;
}

.banner-menu li.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    width: 0;
    background: linear-gradient(90deg, transparent, white, white, transparent);
    animation: flowProgress 5s linear forwards;
}

@keyframes flowProgress {
0% { width: 0; }
100% { width: 100%; }
}

.banner-menu li:hover {
    background-color: inherit;
    color: var(--primary-blue);
}

.banner-menu:hover li.active::after {
    animation-play-state: paused;
}

.tag {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 11px;
    color: white;
    font-weight: bold;
    flex-shrink: 0;
}

.tag-blue {
    background-color: var(--tag-blue);
}

.tag-orange {
    background-color: var(--tag-orange);
}

.tag-green {
    background-color: var(--tag-green);
}

.banner-info {
    width: 40%;
    padding: 30px 30px 30px 30px;
    flex-shrink: 0;
}

.banner-info h1 {
    font-size: 44px;
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--text-dark);
    line-height: 1.3;
}

.banner-info p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 500px;
}

.view-docs-btn {
    background-color: var(--primary-blue);
    color: white;
    border: none;
    padding: 12px 40px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.3s ease;
}

.view-docs-btn:hover {
    background-color: #4A90E0;
}

.view-docs-btn .arrow {
    font-size: 18px;
}

.banner-animation-container {
    width: 60%;
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 0 0 0 10%;
    flex-shrink: 0;
}

.banner-animation {
    width: 30%;
    height: 200px;
    min-width: 150px;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
    position: relative;
}

.banner-animation span {
    font-size: 36px;
    font-weight: bold;
    color: white;
    z-index: 1;
}

.banner-animation::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 30%, rgba(91, 163, 240, 0.1) 50%, transparent 70%);
}

/* Announcement */
/* Feature BG Section - 公告+核心能力共用背景 */
.feature-bg-section {
    position: relative;
    background: linear-gradient(135deg, #fef5f5 0%, #fefcfc 5%, #ffffff 10%, #ffffff 90%, #f7fafe 95%, #eff6fc 100%);
    overflow: hidden;
    padding-top: 20px;
    padding-bottom: 20px;
}

/* 装饰性不规则色块 */
.feature-blob {
    position: absolute;
    border-radius: 60% 40% 55% 45% / 45% 55% 40% 60%;
    filter: blur(40px);
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
}

.feature-blob-1 {
    width: 280px;
    height: 280px;
    background: rgba(255, 182, 182, 0.35);
    top: 5%;
    right: 10%;
    border-radius: 55% 45% 60% 40% / 40% 55% 45% 60%;
}

.feature-blob-2 {
    width: 220px;
    height: 220px;
    background: rgba(180, 210, 255, 0.35);
    bottom: 10%;
    left: 8%;
    border-radius: 40% 60% 50% 50% / 50% 40% 60% 50%;
}

.feature-blob-3 {
    width: 200px;
    height: 200px;
    background: rgba(200, 180, 240, 0.25);
    top: 35%;
    left: 40%;
    border-radius: 50% 50% 45% 55% / 55% 45% 50% 50%;
}

.feature-blob-4 {
    width: 160px;
    height: 160px;
    background: rgba(255, 200, 180, 0.3);
    top: 55%;
    right: 25%;
    border-radius: 45% 55% 50% 50% / 55% 45% 55% 45%;
}

.announcement {
    position: relative;
    z-index: 1;
    background-color: white;
    width: 65%;
    margin: 25px auto;
    padding: 12px 24px;
    border: 1px solid var(--primary-blue);
    border-radius: 4px;
    font-size: 13px;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 10px;
    overflow: hidden;
}

.announcement .section-container {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.announcement .label {
    flex-shrink: 0;
}

.marquee-wrap {
    flex: 1;
    overflow: hidden;
    min-width: 0;
}

.marquee-text {
    display: inline-block;
    white-space: nowrap;
    animation: marquee 12s linear infinite;
}

@keyframes marquee {
0% { transform: translateX(0); }
100% { transform: translateX(-100%); }
}

.marquee-text:hover {
    animation-play-state: paused;
}

.announcement .label {
    color: var(--primary-blue);
    font-weight: bold;
}

/* Core Section */
.core-section {
    position: relative;
    z-index: 1;
    padding: 50px 80px 80px;
    background: transparent;
}

.core-title {
    text-align: center;
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 30px;
}

.core-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.core-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 22px;
    border-radius: 20px;
    font-size: 14px;
    border: 1px solid #D9D9D9;
    cursor: pointer;
    background-color: white;
    color: var(--text-dark);
    transition: all 0.3s ease;
}

.core-tab .tab-icon {
    font-size: 16px;
}

.core-tab:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.core-tab.active {
    background-color: #E8F0FE;
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.core-content {
    display: none;
    gap: 60px;
    align-items: center;
    width: 45%;
    margin: 0 auto;
}

.core-content.active {
    display: flex;
}

.core-left {
    flex: 1;
}

.core-left .subtitle {
    color: var(--primary-blue);
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 12px;
}

.core-left h2 {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 15px;
}

.core-left p {
    font-size: 13px;
    color: var(--text-gray);
    margin-bottom: 25px;
    line-height: 1.8;
}

.payment-channels {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.payment-channel {
    padding: 6px 18px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 13px;
    background-color: white;
    cursor: pointer;
    color: var(--text-dark);
    transition: all 0.3s ease;
}

.payment-channel:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.core-right {
    width: 200px;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.core-right-icon {
    font-size: 100px;
    opacity: 0.85;
}

/* AI Section */
.ai-section {
    padding: 60px 80px 80px;
    background-color: white;
}

.ai-subtitle {
    font-size: 14px;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.ai-title {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 30px;
    color: var(--text-dark);
}

.ai-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0;
}

.ai-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    font-size: 14px;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-gray);
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
    margin-bottom: -1px;
}

.ai-tab:hover {
    color: var(--primary-blue);
}

.ai-tab.active {
    color: var(--primary-blue);
    border-bottom-color: var(--primary-blue);
    font-weight: bold;
}

.ai-content {
    display: none;
    gap: 60px;
    align-items: flex-start;
}

.ai-content.active {
    display: flex;
}

.ai-left {
    flex: 1;
}

.ai-content-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.ai-content-desc {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 30px;
}

.ai-features {
    list-style: none;
    margin-bottom: 30px;
}

.ai-features li {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    align-items: flex-start;
}

.feature-check {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background-color: var(--primary-blue);
    color: white;
    border-radius: 50%;
    font-size: 12px;
    flex-shrink: 0;
    margin-top: 2px;
}

.ai-features li strong {
    display: block;
    font-size: 15px;
    margin-bottom: 4px;
    color: var(--text-dark);
}

.ai-features li p {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.6;
    margin: 0;
}

.ai-buttons {
    display: flex;
    gap: 15px;
    align-items: center;
}

.ai-btn-primary {
    background-color: var(--primary-blue);
    color: white;
    border: none;
    padding: 10px 30px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s ease;
}

.ai-btn-primary:hover {
    background-color: #4A90E0;
}

.ai-btn-secondary {
    background: none;
    border: none;
    color: var(--text-gray);
    cursor: pointer;
    font-size: 14px;
    transition: color 0.3s ease;
}

.ai-btn-secondary:hover {
    color: var(--primary-blue);
}

.ai-right {
    width: 45%;
    flex-shrink: 0;
}

.ai-image-placeholder {
    width: 100%;
    height: 350px;
    background: linear-gradient(135deg, #E8F0FE, #F5F8FF);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-gray);
}

/* Business Scenarios Section */
.scenarios-section {
    padding: 60px 0 80px;
    background-color: white;
}

.scenarios-container {
    width: 80%;
    margin: 0 auto;
}

.scenarios-title {
    text-align: center;
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 40px;
    color: var(--text-dark);
}

.scenarios-cards {
    display: flex;
    gap: 20px;
    perspective: 1000px;
}

.scenario-card {
    flex: 1;
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 1px solid #E8E8E8;
    transform-origin: center bottom;
    will-change: transform, box-shadow;
}

.scenario-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 40px rgba(91, 163, 240, 0.2);
    border-color: rgba(91, 163, 240, 0.3);
}

.scenario-card.active {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 8px 30px rgba(91, 163, 240, 0.25);
    border-color: var(--primary-blue);
}

/* 非激活卡片在 hover 时压缩 */
.scenarios-cards:hover .scenario-card:not(:hover):not(.active) {
    transform: scale(0.97);
    opacity: 0.85;
}

.scenario-card-header {
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.scenario-card-header h3 {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 6px;
    color: var(--text-dark);
}

.scenario-card-header p {
    font-size: 13px;
    color: var(--text-gray);
}

.scenario-card-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.scenario-card-body {
    padding: 0 20px 20px;
}

.scenario-detail {
    padding: 15px 0;
    border-top: 1px dashed #D9D9D9;
}

.scenario-detail:first-child {
    border-top: none;
    padding-top: 0;
}

.scenario-detail h4 {
    font-size: 15px;
    font-weight: bold;
    margin-bottom: 6px;
    color: var(--text-dark);
}

.scenario-detail p {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.6;
}

.scenario-card-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #E8F0FE, #F5F8FF);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--text-gray);
}

.scenario-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 隐藏PC端轮播切换按钮 */
.banner-nav-btn {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.banner-nav-btn.visible {
    opacity: 1;
    pointer-events: auto;
}

/* 侧边栏底部按钮 - PC端隐藏，仅移动端显示 */
.sidebar-actions {
    display: none;
}

/* 关闭按钮 - PC端隐藏，仅移动端显示 */
.nav-close-btn {
    display: none;
}

/* LOGO标题 - PC端隐藏，仅移动端显示 */
.logo-title {
    display: none;
}

/* ==================== Mobile Responsive ==================== */

.mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 101;
}

.mobile-menu-btn svg {
    width: 28px;
    height: 28px;
}

.mobile-menu-btn.active svg {
    opacity: 0.7;
}

/* Banner Indicator - PC端隐藏 */
.banner-indicator {
    display: none;
    position: absolute;
    bottom: 20px;
    left: 80px;
    align-items: center;
    gap: 16px;
    z-index: 2;
}

.banner-indicator-count {
    font-size: 14px;
    color: var(--text-dark);
    font-weight: 500;
    white-space: nowrap;
}

.banner-current-num {
    font-weight: bold;
}

.banner-indicator-bar {
    width: 80px;
    height: 3px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.banner-indicator-progress {
    height: 100%;
    width: 20%;
    background: var(--text-dark);
    border-radius: 2px;
    transition: width 0.3s ease;
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.mobile-nav-overlay.active {
    display: block;
    opacity: 1;
    pointer-events: auto;
}

/* 注册/登录弹窗 */
.auth-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 10000;
    align-items: center;
    justify-content: center;
}

.auth-modal.active {
    display: flex;
}

.auth-modal-mask {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.auth-modal-content {
    position: relative;
    width: 400px;
    max-width: 90vw;
    background: #fff;
    border-radius: 20px;
    padding: 40px 32px 32px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.2);
    animation: authModalIn 0.3s ease;
}

@keyframes authModalIn {
from { opacity: 0; transform: translateY(20px) scale(0.96); }
to { opacity: 1; transform: translateY(0) scale(1); }
}

.auth-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 50%;
    font-size: 20px;
    color: #666;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.auth-modal-close:hover {
    background: rgba(0, 0, 0, 0.1);
    color: #333;
}

.auth-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 28px;
    border-bottom: 2px solid #eee;
}

.auth-tab {
    flex: 1;
    padding: 12px;
    border: none;
    background: none;
    font-size: 16px;
    font-weight: 600;
    color: #999;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s;
}

.auth-tab.active {
    color: #3b82f6;
    border-bottom-color: #3b82f6;
}

.auth-form {
    display: block;
}

.auth-form--hidden {
    display: none;
}

.auth-form-group {
    margin-bottom: 18px;
}

.auth-form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #333;
    margin-bottom: 6px;
}

.auth-form-group input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-size: 15px;
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.auth-form-group input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.auth-submit-btn {
    width: 100%;
    padding: 14px;
    border: none;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    margin-top: 8px;
    transition: all 0.2s;
}

.auth-submit-btn:hover {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

.auth-form-footer {
    text-align: center;
    margin-top: 16px;
    font-size: 14px;
    color: #999;
}

.auth-form-footer a {
    color: #3b82f6;
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
}

.auth-form-footer a:hover {
    text-decoration: underline;
}

/* Tablet: ≤1024px */
@media (max-width: 1024px) {
    header {
        padding: 0 20px;
    }

    .header-left {
        gap: 20px;
    }

    nav {
        gap: 15px;
    }

    .banner {
        padding: 30px 20px;
    }

    .banner-inner {
        flex-direction: column;
        gap: 20px;
    }

    .banner-menu {
        width: 100%;
    }

    .banner-animation {
        width: 100%;
    }

    .feature-blob-1 {
        width: 180px;
        height: 180px;
        top: 0%;
        right: -5%;
    }

    .feature-blob-2 {
        width: 140px;
        height: 140px;
        bottom: 5%;
        left: -5%;
    }

    .feature-blob-3 {
        width: 120px;
        height: 120px;
        top: 40%;
        left: 35%;
    }

    .feature-blob-4 {
        width: 100px;
        height: 100px;
        top: 60%;
        right: 15%;
    }

    .announcement {
        width: 90%;
        margin: 15px auto;
    }

    .core-section {
        padding: 30px 20px;
    }

    .core-content {
        flex-direction: column;
        gap: 30px;
        width: 90%;
    }

    .core-content.active {
        display: flex;
    }

    .core-right {
        width: 100%;
    }

    .globe-layout {
        flex-direction: column;
        gap: 30px;
    }

    .globe-text-left,
    .globe-text-right {
        text-align: center;
    }

    .globe {
        max-width: 100%;
    }

    .footer-links {
        flex-wrap: wrap;
    }

    .footer-link-col {
        min-width: 45%;
    }

    .footer-contact {
        min-width: 100%;
    }
}

/* Mobile: ≤768px */
@media (max-width: 768px) {
    /* Header - Hamburger */
    header {
        padding: 0 16px;
        height: 56px;
        position: fixed;
        z-index: 1000;
    }

    body {
        padding-top: 56px;
    }

    .header-left {
        gap: 12px;
    }

    .logo {
        font-size: 14px;
    }

    .logo-title {
        display: inline;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .header-right .register-btn,
    .header-right .user-center-btn {
        display: none;
    }

    /* Bottom-up slide-out drawer - 通透磨砂玻璃 */
    nav {
        display: flex;
        position: fixed;
        inset: 0;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        background:
        radial-gradient(ellipse at 100% 0%, rgba(255, 255, 255, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 0% 100%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
        transparent;
        backdrop-filter: blur(50px) saturate(110%);
        -webkit-backdrop-filter: blur(50px) saturate(110%);
        flex-direction: column;
        padding: 100px 24px 28px;
        gap: 0;
        z-index: 1001;
        transform: translateY(100%);
        transition: transform 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
        overflow-y: auto;
    }

    nav::after {
        display: none;
    }

    nav.open {
        transform: translateY(0);
    }

    /* 顶部磨砂分隔条 */
    nav::before {
        content: '';
        position: absolute;
        top: 70px;
        left: 24px;
        right: 24px;
        height: 6px;
        background: rgba(255, 255, 255, 0.08);
        border-radius: 3px;
    }

    /* 关闭按钮 */
    .nav-close-btn {
        position: absolute;
        top: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.15);
        border-radius: 50%;
        cursor: pointer;
        z-index: 10;
        transition: background 0.2s;
        -webkit-tap-highlight-color: transparent;
        -webkit-appearance: none;
        appearance: none;
        padding: 0;
        outline: none;
    }

    .nav-close-btn:hover {
        background: rgba(255, 255, 255, 0.18);
    }

    .nav-close-btn:active {
        transform: scale(0.92);
    }

    /* 导航内容区 - 双列错开排列 */
    .nav-content {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 14px;
        padding: 0;
        background: transparent;
        border: none;
    }

    /* 各胶囊渐变磨砂背景 + 错位宽度 */
    .nav-content a:nth-child(1) {
        width: 40%;
        background: linear-gradient(135deg, rgba(147, 197, 253, 0.35), rgba(99, 102, 241, 0.2));
    }

    .nav-content a:nth-child(2) {
        width: 56%;
        background: linear-gradient(135deg, rgba(167, 139, 250, 0.35), rgba(59, 130, 246, 0.2));
    }

    .nav-content a:nth-child(3) {
        width: 58%;
        background: linear-gradient(135deg, rgba(6, 182, 212, 0.3), rgba(124, 58, 237, 0.2));
    }

    .nav-content a:nth-child(4) {
        width: 38%;
        background: linear-gradient(135deg, rgba(34, 197, 94, 0.25), rgba(14, 165, 233, 0.2));
    }

    nav a {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 28px 0;
        font-size: 17px;
        font-weight: 700;
        color: rgba(0, 0, 0, 0.82);
        letter-spacing: 1px;
        text-decoration: none;
        border-radius: 14px;
        border: 1px solid rgba(255, 255, 255, 0.35);
        backdrop-filter: blur(12px) saturate(120%);
        -webkit-backdrop-filter: blur(12px) saturate(120%);
        box-shadow:
        0 2px 12px rgba(0, 0, 0, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.5),
        inset 0 -1px 0 rgba(0, 0, 0, 0.04);
        transition: all 0.25s ease;
        position: relative;
        overflow: visible;
    }

    /* 外框边框白色跑马灯 - 光点沿边框绕行 */
    nav a::after {
        content: '';
        position: absolute;
        inset: -2px;
        border-radius: 16px;
        background: radial-gradient(
        circle 12px at var(--rx) var(--ry),
        rgba(255, 255, 255, 0.9) 0%,
        rgba(255, 255, 255, 0.3) 40%,
        transparent 70%
        );
        animation: perimeterRun 3s linear infinite;
        pointer-events: none;
        z-index: -1;
        -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
        -webkit-mask-composite: xor;
        mask-composite: exclude;
        padding: 2px;
    }

    @keyframes perimeterRun {
    0%    { --rx: 0%;   --ry: 0%; }
    25%   { --rx: 100%; --ry: 0%; }
    50%   { --rx: 100%; --ry: 100%; }
    75%   { --rx: 0%;   --ry: 100%; }
    100%  { --rx: 0%;   --ry: 0%; }
    }

    nav a::before {
        content: '';
        display: block;
        position: absolute;
        inset: 0;
        background: rgba(255, 255, 255, 0.3);
        border-radius: 14px;
        transition: background 0.25s ease;
        z-index: 0;
        pointer-events: none;
    }

    nav a:hover::after {
        animation-duration: 1.5s;
    }

    nav a:hover::before {
        background: rgba(255, 255, 255, 0.15);
    }

    nav a:hover {
        color: rgba(0, 0, 0, 0.95);
        border-color: rgba(255, 255, 255, 0.55);
        box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.1),
        0 0 30px rgba(255, 255, 255, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.6),
        inset 0 -1px 0 rgba(0, 0, 0, 0.06);
        transform: translateY(-2px);
    }

    nav a:last-child {
        margin-bottom: 0;
    }

    /* 侧边栏底部按钮区 - 每个按钮独立磨砂玻璃外框 */
    .sidebar-actions {
        display: flex;
        gap: 14px;
        margin-top: auto;
        padding: 0;
        background: transparent;
        border: none;
        position: relative;
        padding-top: 34px;
    }

    .sidebar-actions::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 6px;
        background: rgba(255, 255, 255, 0.08);
        border-radius: 3px;
    }

    .sidebar-actions .register-btn {
        flex: 1;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 18px 0;
        border: 1px solid rgba(255, 255, 255, 0.3);
        border-radius: 14px;
        color: #3b82f6;
        font-size: 16px;
        font-weight: 600;
        text-decoration: none;
        background: rgba(255, 255, 255, 0.45);
        backdrop-filter: blur(12px) saturate(120%);
        -webkit-backdrop-filter: blur(12px) saturate(120%);
        box-shadow:
        0 2px 12px rgba(0, 0, 0, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.5),
        inset 0 -1px 0 rgba(0, 0, 0, 0.04);
        letter-spacing: 1px;
        transition: all 0.25s ease;
    }

    .sidebar-actions .register-btn:hover {
        background: rgba(255, 255, 255, 0.6);
        border-color: rgba(59, 130, 246, 0.5);
        box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.6),
        inset 0 -1px 0 rgba(0, 0, 0, 0.06);
        transform: translateY(-1px);
    }

    .sidebar-actions .user-center-btn {
        flex: 1;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 18px 0;
        background: rgba(147, 197, 253, 0.25);
        color: #fff;
        border: 1px solid rgba(147, 197, 253, 0.3);
        border-radius: 14px;
        backdrop-filter: blur(12px) saturate(120%);
        -webkit-backdrop-filter: blur(12px) saturate(120%);
        box-shadow:
        0 2px 12px rgba(0, 0, 0, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.5),
        inset 0 -1px 0 rgba(0, 0, 0, 0.04);
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        text-decoration: none;
        letter-spacing: 1px;
        transition: all 0.25s ease;
    }

    .sidebar-actions .user-center-btn:hover {
        background: rgba(147, 197, 253, 0.4);
        border-color: rgba(147, 197, 253, 0.5);
        box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.6),
        inset 0 -1px 0 rgba(0, 0, 0, 0.06);
        transform: translateY(-1px);
    }

    /* Banner */
    .banner {
        padding: 14px 16px 20px;
        min-height: 230px;
    }

    .banner-right-block {
        width: 100%;
    }

    .banner-menu {
        display: none;
    }

    .banner-info {
        width: 100%;
        padding: 20px 0 0;
        min-height: 120px;
    }

    .banner-info h1 {
        font-size: 28px;
        margin-bottom: 12px;
        min-height: 68px;
    }

    .banner-info p {
        font-size: 14px;
        margin-bottom: 24px;
        min-height: 44px;
    }

    /* 移动端隐藏立即体验按钮 */
    .view-docs-btn {
        display: none;
    }

    /* 移动端轮播区域可点击 */
    .banner {
        cursor: pointer;
    }

    .banner-animation-container {
        width: 100%;
        padding: 0;
        justify-content: center;
        min-height: 140px;
    }

    .banner-animation {
        width: 60%;
        height: 140px;
        min-width: auto;
    }

    .banner-animation span {
        font-size: 24px;
    }

    /* 轮播切换按钮 */
    .banner-nav-btn {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        z-index: 10;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.25);
        backdrop-filter: blur(4px);
        border: 1px solid rgba(255, 255, 255, 0.3);
        color: white;
        font-size: 20px;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: all 0.2s ease;
        -webkit-tap-highlight-color: transparent;
    }

    .banner-nav-btn:hover {
        background: rgba(255, 255, 255, 0.4);
    }

    .banner-nav-btn:active {
        transform: translateY(-50%) scale(0.92);
    }

    .banner-nav-prev {
        left: 8px;
    }

    .banner-nav-next {
        right: 8px;
    }

    /* Banner Indicator - Mobile 显示 */
    .banner .banner-indicator {
        display: flex !important;
        left: 16px;
        bottom: 16px;
        gap: 12px;
    }

    .banner-indicator-count {
        font-size: 13px;
        color: rgba(255,255,255,0.8);
    }

    .banner-indicator-bar {
        width: 60px;
        background: rgba(255,255,255,0.2);
    }

    .banner-indicator-progress {
        background: rgba(255,255,255,0.8);
    }

    /* 移动端隐藏轮播指示器 */
    .banner-indicator {
        display: none;
    }

    .feature-bg-section {
        padding-top: 12px;
        padding-bottom: 12px;
    }

    .feature-blob {
        filter: blur(30px);
        opacity: 0.4;
    }

    .feature-blob-1 {
        width: 140px;
        height: 140px;
        top: 0%;
        right: -8%;
    }

    .feature-blob-2 {
        width: 100px;
        height: 100px;
        bottom: 3%;
        left: -8%;
    }

    .feature-blob-3 {
        width: 90px;
        height: 90px;
        top: 35%;
        left: 30%;
    }

    .feature-blob-4 {
        width: 70px;
        height: 70px;
        top: 55%;
        right: 10%;
    }

    /* Announcement */
    .announcement {
        width: 90%;
        margin: 12px auto;
        padding: 10px 16px;
        font-size: 12px;
    }

    /* Section containers - full width on mobile */
    .section-container,
    .section__inner,
    .scenarios-container,
    .footer-inner {
        width: 92%;
    }

    /* Core Section */
    .core-section {
        padding: 30px 0 40px;
    }

    .core-title {
        font-size: 18px;
        margin-bottom: 20px;
        padding: 0 16px;
    }

    .core-tabs {
        flex-wrap: wrap;
        gap: 8px;
        padding: 0 16px;
        margin-bottom: 24px;
    }

    .core-tab {
        padding: 6px 14px;
        font-size: 13px;
    }

    .core-content {
        width: 92%;
        gap: 20px;
    }

    .core-left h2 {
        font-size: 18px;
    }

    .core-left p {
        font-size: 12px;
    }

    .payment-channel {
        padding: 5px 12px;
        font-size: 12px;
    }

    .core-right {
        width: 100%;
        height: 120px;
    }

    .core-right-icon {
        font-size: 70px;
    }

    /* AI Section */
    .ai-section {
        padding: 30px 0 40px;
    }

    .ai-subtitle {
        font-size: 13px;
    }

    .ai-title {
        font-size: 22px;
        margin-bottom: 20px;
    }

    .ai-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        gap: 0;
        margin-bottom: 24px;
        padding-bottom: 0;
    }

    .ai-tab {
        padding: 10px 14px;
        font-size: 13px;
        white-space: nowrap;
        flex-shrink: 0;
    }

    .ai-content {
        flex-direction: column;
        gap: 24px;
    }

    .ai-content.active {
        display: flex;
    }

    .ai-content-title {
        font-size: 18px;
    }

    .ai-content-desc {
        font-size: 13px;
        margin-bottom: 20px;
    }

    .ai-features li {
        margin-bottom: 14px;
    }

    .ai-features li strong {
        font-size: 14px;
    }

    .ai-features li p {
        font-size: 12px;
    }

    .ai-right {
        width: 100%;
    }

    .ai-image-placeholder {
        height: 200px;
    }

    .ai-buttons {
        flex-wrap: wrap;
    }

    /* Scenarios Section */
    .scenarios-section {
        padding: 30px 0 40px;
    }

    .scenarios-title {
        font-size: 20px;
        margin-bottom: 24px;
    }

    .scenarios-cards {
        flex-direction: column;
        gap: 16px;
    }

    .scenario-card {
        flex: none;
    }

    .scenario-card-header h3 {
        font-size: 16px;
    }

    .scenario-card-image {
        height: 160px;
    }

    /* Globe Section */
    .section--globe {
        padding: 30px 0 40px;
    }

    .globe-title {
        font-size: 22px;
    }

    .globe-subtitle {
        font-size: 13px;
    }

    .globe-header {
        margin-bottom: 30px;
    }

    .globe-layout {
        gap: 24px;
    }

    .globe-text {
        max-width: 100%;
    }

    .globe-text h4 {
        font-size: 17px;
        margin-top: 18px;
    }

    .globe-text p {
        font-size: 13px;
    }

    .globe {
        min-height: 280px;
    }

    #globe-container {
        min-height: 280px;
    }

    /* CTA Section */
    .cta-section {
        padding: 36px 0;
    }

    .cta-title {
        font-size: 20px;
        margin-bottom: 14px;
    }

    .cta-features {
        flex-direction: column;
        gap: 10px;
        margin-bottom: 20px;
    }

    .cta-feature {
        font-size: 13px;
    }

    .cta-btn {
        padding: 10px 36px;
        font-size: 14px;
    }

    /* Footer */
    .site-footer {
        padding: 30px 0 20px;
    }

    .footer-services {
        flex-wrap: wrap;
        gap: 20px 30px;
        padding: 10px 0 24px;
        justify-content: center;
    }

    .footer-service-item {
        font-size: 13px;
    }

    .service-icon {
        width: 30px;
        height: 30px;
    }

    .service-icon svg {
        width: 14px;
        height: 14px;
    }

    .footer-links {
        flex-direction: column;
        gap: 24px;
        padding: 24px 0;
    }

    .footer-link-col {
        min-width: 100%;
    }

    .footer-link-col h4 {
        margin-bottom: 12px;
    }

    .footer-link-col a {
        margin-bottom: 8px;
    }

    .footer-qrcodes {
        justify-content: flex-start;
    }

    .qr-placeholder {
        width: 70px;
        height: 70px;
    }

    .footer-bottom-links {
        gap: 10px;
    }

    .footer-bottom-links a {
        font-size: 11px;
    }

    .footer-copyright p,
    .footer-icp p {
        font-size: 11px;
    }
}

/* Small Mobile: ≤480px */
@media (max-width: 480px) {
    .banner-info h1 {
        font-size: 22px;
    }

    .banner-animation {
        width: 80%;
        height: 110px;
    }

    .banner-animation span {
        font-size: 20px;
    }

    .core-title {
        font-size: 16px;
    }

    .core-tabs {
        justify-content: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
        padding-bottom: 4px;
    }

    .core-tab {
        flex-shrink: 0;
    }

    .ai-title {
        font-size: 19px;
    }

    .scenarios-title {
        font-size: 18px;
    }

    .globe-title {
        font-size: 19px;
    }

    .globe-text h4 {
        font-size: 15px;
    }

    .cta-title {
        font-size: 18px;
    }

    .footer-service-item span {
        font-size: 12px;
    }
}

/* Globe Section */
.section--globe {
    padding: 60px 0 80px;
    background-color: #FAFBFF;
}

.section__inner {
    width: 80%;
    margin: 0 auto;
}

.globe-wrapper {
    text-align: center;
}

.globe-header {
    margin-bottom: 50px;
}

.globe-title {
    font-size: 32px;
    font-weight: bold;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.globe-subtitle {
    font-size: 15px;
    color: var(--text-gray);
}

.globe-layout {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
}

.globe-text {
    flex: 1;
    max-width: 280px;
}

.globe-text-left {
    text-align: right;
}

.globe-text-right {
    text-align: left;
}

.globe-text h4 {
    font-size: 20px;
    font-weight: bold;
    color: var(--primary-blue);
    margin-bottom: 8px;
    margin-top: 24px;
}

.globe-text h4:first-child {
    margin-top: 0;
}

.globe-text p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 0;
}

.globe {
    flex: 1;
    max-width: 500px;
    min-height: 420px;
}

#globe-container {
    width: 100%;
    height: 100%;
    min-height: 420px;
}

#globe-container canvas {
    width: 100% !important;
    height: 100% !important;
}

/* CTA Banner Section */
.cta-section {
    padding: 50px 0;
    position: relative;
    overflow: hidden;
    background: #1D4ED8;
}

.cta-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
    z-index: 0;
}

.cta-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(59,130,246,0.75) 0%, rgba(37,99,235,0.7) 40%, rgba(29,78,216,0.8) 100%);
    z-index: 1;
}

.cta-content {
    position: relative;
    z-index: 2;
}

.cta-title {
    font-size: 28px;
    font-weight: bold;
    color: white;
    margin-bottom: 16px;
}

.cta-features {
    display: flex;
    gap: 28px;
    margin-bottom: 24px;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

.cta-check {
    width: 16px;
    height: 16px;
    color: rgba(255, 255, 255, 0.9);
    flex-shrink: 0;
}

.cta-btn {
    padding: 10px 48px;
    font-size: 15px;
    color: white;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cta-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: white;
}

/* Footer Section */
.site-footer {
    background-color: #F7F8FA;
    padding: 40px 0 30px;
}

.footer-inner {
    width: 80%;
    margin: 0 auto;
}

.footer-services {
    display: flex;
    justify-content: center;
    gap: 80px;
    padding: 10px 0 30px;
}

.footer-service-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: var(--text-dark);
}

.service-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.service-icon-blue {
    background: linear-gradient(135deg, #5BA3F0, #3B82F6);
}

.service-icon svg {
    width: 18px;
    height: 18px;
}

.footer-divider {
    height: 1px;
    background-color: #E8E8E8;
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 40px;
    padding: 30px 0;
}

.footer-link-col {
    flex: 1;
    min-width: 140px;
}

.footer-link-col h4 {
    font-size: 14px;
    font-weight: bold;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.footer-link-col a {
    display: block;
    font-size: 13px;
    color: #888;
    text-decoration: none;
    margin-bottom: 10px;
    transition: color 0.2s;
}

.footer-link-col a:hover {
    color: var(--primary-blue);
}

.footer-contact-desc {
    font-size: 12px;
    color: #999;
    line-height: 1.6;
    margin-bottom: 12px;
}

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

.qr-placeholder {
    width: 80px;
    height: 80px;
    background: #E8E8E8;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: #999;
}

.footer-hotline {
    font-size: 13px;
    color: #666;
    margin-bottom: 12px;
}

.footer-hotline strong {
    color: var(--text-dark);
}

.footer-contact-btn {
    padding: 8px 32px;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s;
}

.footer-contact-btn:hover {
    background: #4A93E0;
}

.footer-bottom {
    padding: 20px 0 0;
}

.footer-bottom-links {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.footer-logo-text {
    font-size: 14px;
    font-weight: bold;
    color: var(--primary-blue);
    margin-right: 8px;
}

.footer-bottom-links a {
    font-size: 12px;
    color: #999;
    text-decoration: none;
}

.footer-bottom-links a:hover {
    color: var(--primary-blue);
}

.footer-copyright p,
.footer-icp p {
    font-size: 12px;
    color: #BBB;
    line-height: 1.8;
    margin-bottom: 4px;
}