/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.zb9ec4container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.zb9ec4header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.zb9ec4header .zb9ec4container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.zb9ec4logo {
    display: flex;
    align-items: center;
}

.zb9ec4logo h1 {
    font-size: 24px;
    color: #1a73e8;
}

/* 移动端菜单按钮 */
.zb9ec4mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.zb9ec4mobile-menu-btn span {
    width: 100%;
    height: 3px;
    background-color: #333;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.zb9ec4main-nav ul {
    display: flex;
    list-style: none;
}

.zb9ec4main-nav li {
    margin-left: 24px;
}

.zb9ec4main-nav li:first-child {
    margin-left: 0;
}

.zb9ec4main-nav a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.zb9ec4main-nav a:hover {
    color: #1a73e8;
}

/* 英雄区域样式 */
.zb9ec4hero {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: #fff;
    padding: 130px 0 70px;
    position: relative;
    overflow: hidden;
}

.zb9ec4hero::before {
    content: "";
    position: absolute;
    top: -120px;
    right: -80px;
    width: 400px;
    height: 400px;
    background: rgba(255,255,255,0.06);
    border-radius: 50%;
}

.zb9ec4hero::after {
    content: "";
    position: absolute;
    bottom: -60px;
    left: -40px;
    width: 250px;
    height: 250px;
    background: rgba(255,255,255,0.04);
    border-radius: 50%;
}

.zb9ec4hero .zb9ec4container {
    position: relative;
    z-index: 1;
}

.zb9ec4hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.zb9ec4hero-text {
    text-align: left;
}

.zb9ec4hero-text h2 {
    font-size: clamp(1.6em, 4vw, 2.2em);
    margin-bottom: 16px;
    line-height: 1.3;
}

.zb9ec4hero-text p {
    font-size: clamp(0.95em, 2vw, 1.1em);
    margin-bottom: 14px;
    line-height: 1.7;
}

.zb9ec4hero-sub {
    font-size: 0.95em !important;
    opacity: 0.92;
    line-height: 1.7;
    margin-bottom: 24px !important;
}

.zb9ec4section-desc {
    max-width: 800px;
    margin: -30px auto 40px;
    text-align: center;
    color: #666;
    line-height: 1.8;
    font-size: 15px;
}

.zb9ec4hero-image {
    text-align: center;
}

.zb9ec4hero-showcase {
    max-width: 100%;
    max-height: 420px;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 20px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

.zb9ec4hero-showcase:hover {
    transform: scale(1.02);
}

.zb9ec4hero-stats {
    display: flex;
    justify-content: flex-start;
    gap: 60px;
    margin: 40px 0;
}

.zb9ec4stat-item {
    text-align: center;
}

.zb9ec4stat-number {
    display: block;
    font-size: 2.5em;
    font-weight: bold;
    margin-bottom: 10px;
}

.zb9ec4stat-label {
    font-size: 1.1em;
    opacity: 0.9;
}

/* 按钮样式 */
.zb9ec4btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    margin: 0 10px;
}

.zb9ec4hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.zb9ec4hero-buttons .zb9ec4btn {
    display: inline-block;
    padding: 11px 20px;
    margin: 0;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    font-size: 15px;
    transition: all 0.3s ease;
}

.zb9ec4btn-android {
    background-color: #3DDC84;
    color: #000000;
}

.zb9ec4btn-ios {
    background-color: #007AFF;
    color: #FFFFFF;
}

.zb9ec4btn-register {
    background-color: #FF6B00;
    color: #FFFFFF;
}

.zb9ec4hero-buttons .zb9ec4btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.zb9ec4btn-primary {
    background-color: #fff;
    color: #1a73e8;
}

.zb9ec4btn-secondary {
    background-color: transparent;
    border: 2px solid #fff;
    color: #fff;
}

.zb9ec4btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* 板块通用标题 */
.zb9ec4section-title {
    font-size: clamp(1.5em, 3vw, 1.85em);
    margin-bottom: 10px;
    color: #333;
}

.zb9ec4section-title-left {
    text-align: left;
}

.zb9ec4section-head {
    margin-bottom: 40px;
}

.zb9ec4section-head-center {
    text-align: center;
}

.zb9ec4section-head-left {
    text-align: left;
    border-left: 4px solid #1a73e8;
    padding-left: 20px;
}

.zb9ec4section-head-light .zb9ec4section-title,
.zb9ec4section-head-light .zb9ec4section-subtitle {
    color: #fff;
}

.zb9ec4section-subtitle {
    font-size: 15px;
    color: #888;
    line-height: 1.6;
}

.zb9ec4section-subtitle-left {
    text-align: left;
}

.zb9ec4section-desc-left {
    max-width: none;
    margin: 0 0 20px;
    text-align: left;
    color: #666;
}

/* 平台优势 - Bento 不规则网格 */
.zb9ec4features {
    padding: 70px 0;
    background-color: #f8f9fa;
}

.zb9ec4features-bento {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    grid-template-rows: auto auto auto;
    gap: 20px;
    align-items: stretch;
}

.zb9ec4feature-card {
    background: #fff;
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transition: transform 0.3s, box-shadow 0.3s;
}

.zb9ec4feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(26,115,232,0.12);
}

.zb9ec4feature-main {
    grid-column: 1;
    grid-row: 1 / 3;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(145deg, #fff 0%, #e8f0fe 100%);
    border: 1px solid #dbeafe;
}

.zb9ec4feature-side:nth-child(2) {
    grid-column: 2;
    grid-row: 1;
}

.zb9ec4feature-side:nth-child(3) {
    grid-column: 2;
    grid-row: 2;
}

.zb9ec4feature-wide {
    grid-column: 1 / -1;
    grid-row: 3;
    display: flex;
    align-items: center;
    gap: 24px;
    background: #fff;
    border-left: 4px solid #1a73e8;
}

.zb9ec4feature-icon {
    font-size: 2.2em;
    flex-shrink: 0;
}

.zb9ec4feature-main .zb9ec4feature-icon {
    font-size: 3em;
    margin-bottom: 16px;
}

.zb9ec4feature-card h3 {
    font-size: 1.2em;
    margin-bottom: 8px;
    color: #222;
}

.zb9ec4feature-card p {
    color: #666;
    font-size: 14px;
    margin-bottom: 12px;
}

.zb9ec4feature-list {
    list-style: none;
}

.zb9ec4feature-list li {
    margin: 8px 0;
    padding-left: 20px;
    position: relative;
    font-size: 14px;
    color: #555;
}

.zb9ec4feature-list li:before {
    content: "✓";
    color: #1a73e8;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.zb9ec4feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}

.zb9ec4feature-tags li {
    padding: 6px 14px;
    background: #e8f0fe;
    color: #1a73e8;
    border-radius: 20px;
    font-size: 13px;
}

/* 交易服务 - 编号列表 */
.zb9ec4trading {
    padding: 70px 0;
    background: #fff;
}

.zb9ec4trading-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.zb9ec4trading-row {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 24px 16px;
    border-bottom: 1px solid #eee;
    border-radius: 12px;
    transition: background 0.3s;
}

.zb9ec4trading-row:last-child {
    border-bottom: none;
}

.zb9ec4trading-row:hover {
    background: #f8f9fa;
}

.zb9ec4trading-num {
    flex-shrink: 0;
    font-size: 2.5em;
    font-weight: 800;
    color: #e8f0fe;
    line-height: 1;
    width: 70px;
    -webkit-text-stroke: 1px #1a73e8;
    color: transparent;
}

.zb9ec4trading-content {
    flex: 1;
    min-width: 0;
}

.zb9ec4trading-content h3 {
    font-size: 1.25em;
    color: #1a73e8;
    margin-bottom: 8px;
}

.zb9ec4trading-content p {
    color: #666;
    margin-bottom: 14px;
    line-height: 1.7;
}

.zb9ec4trading-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.zb9ec4trading-tags span {
    padding: 5px 12px;
    background: #f0f4f8;
    border-radius: 4px;
    font-size: 13px;
    color: #555;
}

/* 安全保障 - 深色横条 */
.zb9ec4security {
    padding: 70px 0;
    background: linear-gradient(135deg, #1a237e 0%, #0d47a1 50%, #1a73e8 100%);
}

.zb9ec4security-strip {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.zb9ec4security-col {
    text-align: center;
    padding: 20px;
}

.zb9ec4security-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8em;
    backdrop-filter: blur(4px);
}

.zb9ec4security-col h3 {
    color: #fff;
    font-size: 1.15em;
    margin-bottom: 12px;
}

.zb9ec4security-col p {
    color: rgba(255,255,255,0.85);
    font-size: 14px;
    line-height: 1.7;
}

/* 下载区域 - 左右分栏 + 横条卡片 */
.zb9ec4download {
    padding: 70px 0;
    background: #f8f9fa;
}

.zb9ec4download-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.zb9ec4download-intro {
    position: sticky;
    top: 100px;
}

.zb9ec4download-platforms {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.zb9ec4download-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    background: #fff;
    padding: 20px 24px;
    border-radius: 14px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
    transition: box-shadow 0.3s;
}

.zb9ec4download-row:hover {
    box-shadow: 0 6px 24px rgba(26,115,232,0.12);
}

.zb9ec4download-android {
    border-left: 4px solid #3DDC84;
}

.zb9ec4download-ios {
    border-left: 4px solid #007AFF;
}

.zb9ec4download-badge {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: #fff;
}

.zb9ec4download-android .zb9ec4download-badge {
    background: #3DDC84;
    color: #000;
}

.zb9ec4download-ios .zb9ec4download-badge {
    background: #007AFF;
}

.zb9ec4download-info {
    flex: 1;
    min-width: 0;
}

.zb9ec4download-info h3 {
    font-size: 1.1em;
    margin-bottom: 4px;
}

.zb9ec4download-info p {
    font-size: 13px;
    color: #888;
    margin-bottom: 8px;
}

.zb9ec4version-info {
    display: flex;
    gap: 16px;
}

.zb9ec4version-info span {
    font-size: 12px;
    color: #aaa;
}

.zb9ec4download-row .zb9ec4btn-download {
    flex-shrink: 0;
    margin: 0;
    margin-left: auto;
    padding: 10px 18px;
    font-size: 14px;
}

.zb9ec4btn-download {
    background-color: #1a73e8;
    color: #fff;
}

/* 注册指南 - 横向时间轴 */
.zb9ec4guide {
    padding: 70px 0;
    background: #fff;
}

.zb9ec4guide-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    position: relative;
    align-items: stretch;
}

.zb9ec4guide-timeline::before {
    content: "";
    position: absolute;
    top: 24px;
    left: 10%;
    right: 10%;
    height: 3px;
    background: linear-gradient(90deg, #1a73e8, #64b5f6);
    z-index: 0;
}

.zb9ec4guide-timeline .zb9ec4step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
    padding: 0 8px;
    height: 100%;
}

.zb9ec4step-marker {
    margin-bottom: 20px;
}

.zb9ec4step-number {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1em;
    box-shadow: 0 4px 12px rgba(26,115,232,0.35);
    border: 3px solid #fff;
}

.zb9ec4step-card {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 20px 16px;
    width: 100%;
    flex: 1;
    text-align: center;
    transition: background 0.3s, box-shadow 0.3s;
}

.zb9ec4step-card:hover {
    background: #fff;
    box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}

.zb9ec4step-card h3 {
    font-size: 1em;
    margin-bottom: 8px;
    color: #1a73e8;
}

.zb9ec4step-card p {
    font-size: 13px;
    color: #666;
    margin-bottom: 12px;
}

.zb9ec4step-details {
    list-style: none;
    text-align: left;
}

.zb9ec4step-details li {
    margin: 6px 0;
    padding-left: 16px;
    position: relative;
    font-size: 12px;
    color: #777;
}

.zb9ec4step-details li:before {
    content: "→";
    color: #1a73e8;
    position: absolute;
    left: 0;
    font-size: 11px;
}

/* FAQ - 左右分栏列表 */
.zb9ec4faq {
    padding: 70px 0;
    background: #f8f9fa;
}

.zb9ec4faq-layout {
    display: grid;
    grid-template-columns: minmax(200px, 260px) 1fr;
    gap: 40px;
    align-items: start;
}

.zb9ec4faq-side {
    position: sticky;
    top: 100px;
}

.zb9ec4faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.zb9ec4faq-item {
    background: #fff;
    padding: 24px 28px;
    border-radius: 0 12px 12px 0;
    border-left: 4px solid #1a73e8;
    box-shadow: 0 2px 10px rgba(0,0,0,0.04);
    transition: box-shadow 0.3s;
}

.zb9ec4faq-item:hover {
    box-shadow: 0 4px 20px rgba(26,115,232,0.1);
}

.zb9ec4faq-item h3 {
    color: #333;
    margin-bottom: 10px;
    font-size: 1.05em;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.5;
}

.zb9ec4faq-q {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    background: #1a73e8;
    color: #fff;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: bold;
}

.zb9ec4faq-item p {
    color: #666;
    font-size: 14px;
    line-height: 1.7;
    padding-left: 36px;
}

/* 页脚样式 */
.zb9ec4footer {
    background-color: #333;
    color: #fff;
    padding: 40px 0 20px;
}

.zb9ec4footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.zb9ec4footer-section h3 {
    margin-bottom: 20px;
    color: #fff;
}

.zb9ec4friendly-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.zb9ec4friendly-link {
    color: #fff;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
    font-size: 0.9em;
}

.zb9ec4friendly-link:hover {
    opacity: 1;
    color: #1a73e8;
}

.zb9ec4social-links {
    display: flex;
    gap: 15px;
}

.zb9ec4social-link {
    color: #fff;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.zb9ec4social-link:hover {
    opacity: 1;
}

.zb9ec4footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .zb9ec4container {
        max-width: 960px;
    }

    .zb9ec4main-nav li {
        margin-left: 16px;
    }

    .zb9ec4main-nav a {
        font-size: 14px;
    }

    .zb9ec4article-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .zb9ec4download-layout {
        gap: 30px;
    }
}

@media (max-width: 992px) {
    .zb9ec4container {
        max-width: 720px;
    }

    .zb9ec4hero {
        padding: 110px 0 60px;
    }

    .zb9ec4hero-content {
        gap: 30px;
    }

    .zb9ec4features-bento {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto;
    }

    .zb9ec4feature-main {
        grid-column: 1;
        grid-row: auto;
    }

    .zb9ec4feature-side:nth-child(2) {
        grid-column: 2;
        grid-row: 1;
    }

    .zb9ec4feature-side:nth-child(3) {
        grid-column: 1 / -1;
        grid-row: auto;
    }

    .zb9ec4feature-wide {
        grid-column: 1 / -1;
        grid-row: auto;
    }

    .zb9ec4security-strip {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .zb9ec4download-layout {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .zb9ec4download-intro {
        position: static;
    }

    .zb9ec4download-row .zb9ec4btn-download {
        margin-left: 0;
        width: 100%;
        text-align: center;
    }

    .zb9ec4faq-layout {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .zb9ec4faq-side {
        position: static;
    }

    .zb9ec4guide-timeline {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .zb9ec4guide-timeline::before {
        display: none;
    }

    .zb9ec4article-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .zb9ec4container {
        max-width: 540px;
    }

    /* 头部导航响应式 */
    .zb9ec4header .zb9ec4container {
        flex-direction: row;
        height: 60px;
        padding: 0 15px;
    }

    .zb9ec4logo h1 {
        font-size: 18px;
        text-align: left;
    }

    /* 英雄区域响应式 */
    .zb9ec4hero {
        padding: 120px 0 60px;
    }

    .zb9ec4hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }

    .zb9ec4hero-text {
        text-align: center;
    }

    .zb9ec4hero-text h2 {
        font-size: 1.8em;
    }

    .zb9ec4hero-text p {
        font-size: 1.1em;
    }

    .zb9ec4hero-stats {
        justify-content: center;
        flex-wrap: wrap;
        gap: 30px;
    }

    .zb9ec4stat-item {
        flex: 0 0 45%;
    }

    .zb9ec4hero-showcase {
        max-width: 85%;
        margin: 0 auto;
    }

    /* 按钮响应式 */
    .zb9ec4cta-buttons {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .zb9ec4btn {
        width: 100%;
        max-width: 280px;
        margin: 0;
        text-align: center;
    }

    /* 首页板块响应式 */
    .zb9ec4features-bento {
        grid-template-columns: 1fr;
    }

    .zb9ec4feature-main,
    .zb9ec4feature-wide,
    .zb9ec4feature-side:nth-child(2),
    .zb9ec4feature-side:nth-child(3) {
        grid-column: 1;
        grid-row: auto;
    }

    .zb9ec4feature-wide {
        flex-direction: column;
        text-align: center;
    }

    .zb9ec4feature-tags {
        justify-content: center;
    }

    .zb9ec4trading-row {
        flex-direction: column;
        gap: 12px;
    }

    .zb9ec4trading-num {
        font-size: 2em;
        width: auto;
    }

    .zb9ec4security-strip {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .zb9ec4security-col {
        padding: 12px 0;
    }

    .zb9ec4download-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .zb9ec4download-intro {
        position: static;
    }

    .zb9ec4download-row {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        gap: 14px;
    }

    .zb9ec4download-badge {
        margin: 0 auto;
    }

    .zb9ec4download-row .zb9ec4btn-download {
        width: 100%;
        margin-left: 0;
        text-align: center;
    }

    .zb9ec4guide-timeline {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .zb9ec4guide-timeline::before {
        display: none;
    }

    .zb9ec4guide-timeline .zb9ec4step {
        flex-direction: row;
        align-items: flex-start;
        gap: 16px;
        padding: 0;
    }

    .zb9ec4step-marker {
        margin-bottom: 0;
    }

    .zb9ec4step-card {
        text-align: left;
    }

    .zb9ec4faq-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .zb9ec4faq-side {
        position: static;
    }

    .zb9ec4faq-item p {
        padding-left: 0;
    }

    .zb9ec4section-head-left {
        padding-left: 15px;
    }

    .zb9ec4hero-buttons {
        justify-content: center;
    }

    .zb9ec4hero-buttons .zb9ec4btn {
        flex: 1 1 auto;
        min-width: 140px;
        max-width: 280px;
        text-align: center;
    }

    /* 页脚响应式 */
    .zb9ec4footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }

    .zb9ec4friendly-links,
    .zb9ec4social-links {
        align-items: center;
    }

    .zb9ec4mobile-menu-btn {
        display: flex;
    }

    .zb9ec4main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: #fff;
        padding: 80px 20px 20px;
        transition: right 0.3s ease;
        box-shadow: -2px 0 5px rgba(0,0,0,0.1);
    }

    .zb9ec4main-nav.active {
        right: 0;
    }

    .zb9ec4main-nav ul {
        flex-direction: column;
        align-items: center;
    }

    .zb9ec4main-nav li {
        margin: 15px 0;
        width: 100%;
        text-align: center;
    }

    .zb9ec4main-nav a {
        display: block;
        padding: 10px;
        font-size: 1.1em;
    }

    /* 汉堡菜单动画 */
    .zb9ec4mobile-menu-btn.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .zb9ec4mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .zb9ec4mobile-menu-btn.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    /* 遮罩层 */
    .zb9ec4nav-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0,0,0,0.5);
        z-index: 999;
    }

    .zb9ec4nav-overlay.active {
        display: block;
    }
}

@media (max-width: 576px) {
    .zb9ec4container {
        padding: 0 15px;
    }

    .zb9ec4hero-text h2 {
        font-size: 1.6em;
    }

    .zb9ec4hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .zb9ec4stat-item {
        flex: 0 0 100%;
    }

    .zb9ec4section-title {
        font-size: 1.8em;
    }

    .zb9ec4hero-showcase {
        max-width: 90%;
    }

    .zb9ec4btn {
        padding: 10px 20px;
        font-size: 0.9em;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.zb9ec4feature-card,
.zb9ec4download-row,
.zb9ec4step-card,
.zb9ec4trading-row,
.zb9ec4security-col,
.zb9ec4faq-item,
.zb9ec4article-card {
    animation: fadeIn 0.5s ease-out forwards;
}

/* App preview styles */
.zb9ec4app-preview {
    margin-bottom: 20px;
    text-align: center;
}

.zb9ec4app-image {
    max-width: 200px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.zb9ec4app-image:hover {
    transform: scale(1.05);
}

/* Guide step image styles */
.zb9ec4step-image {
    margin: 15px 0;
    text-align: center;
}

.zb9ec4guide-image {
    max-width: 150px;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* 下载区域新样式 */
.zb9ec4download-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 40px;
}

.zb9ec4app-showcase {
    text-align: center;
}

.zb9ec4showcase-image {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.zb9ec4showcase-image:hover {
    transform: scale(1.02);
}

/* 注册指南新样式 */
.zb9ec4guide-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.zb9ec4guide-image-section {
    position: sticky;
    top: 100px;
    text-align: center;
}

.zb9ec4guide-showcase {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .zb9ec4download-showcase,
    .zb9ec4guide-content {
        grid-template-columns: 1fr;
    }

    .zb9ec4guide-image-section {
        position: static;
        margin-bottom: 30px;
    }

    .zb9ec4showcase-image,
    .zb9ec4guide-showcase {
        max-width: 80%;
    }
}

/* 导航当前样式 */
.zb9ec4main-nav .zb9ec4this a,
.zb9ec4main-nav .zb9ec4nav-item.zb9ec4this a,
.zb9ec4main-nav li.zb9ec4this a {
    color: #1a73e8;
}

.zb9ec4logo h1 a {
    color: #1a73e8;
    text-decoration: none;
}

/* 内页通用布局 */
.zb9ec4breadcrumb {
    margin-top: 80px;
    padding: 15px 0;
    background-color: #f8f9fa;
    border-bottom: 1px solid #eee;
    font-size: 14px;
}

.zb9ec4breadcrumb a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.zb9ec4breadcrumb a:hover {
    color: #1a73e8;
}

.zb9ec4breadcrumb-sep {
    margin: 0 8px;
    color: #ccc;
}

.zb9ec4breadcrumb-current {
    display: inline;
    color: #333;
    font-size: 14px;
    font-weight: normal;
    margin: 0;
}

.zb9ec4page-main {
    padding: 40px 0 80px;
    background-color: #f8f9fa;
    min-height: 60vh;
}

.zb9ec4page-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 30px;
    align-items: start;
}

/* 内容页样式 */
.zb9ec4article-main {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    padding: 40px;
}

.zb9ec4article-title {
    font-size: 1.8em;
    color: #333;
    line-height: 1.4;
    margin-bottom: 15px;
}

.zb9ec4article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
    font-size: 14px;
    color: #888;
}

.zb9ec4article-meta a {
    color: #1a73e8;
    text-decoration: none;
}

.zb9ec4article-litpic {
    margin: 20px 0;
    width: 280px;
    height: 180px;
    overflow: hidden;
    border-radius: 8px;
}

.zb9ec4article-litpic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.zb9ec4article-litpic img[src=""],
.zb9ec4article-litpic img:not([src]) {
    display: none;
}

.zb9ec4article-body {
    font-size: 16px;
    line-height: 1.8;
    color: #444;
    margin: 25px 0;
}

.zb9ec4article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin: 10px 0;
}

.zb9ec4article-images {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 20px 0;
}

.zb9ec4article-body p {
    margin-bottom: 15px;
}

.zb9ec4article-figure {
    width: 120px;
    margin: 0;
    text-align: center;
}

.zb9ec4article-figure img {
    width: 120px;
    height: 80px;
    object-fit: cover;
    border-radius: 6px;
}

.zb9ec4article-figure figcaption {
    margin-top: 6px;
    font-size: 12px;
    color: #888;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.zb9ec4diyfield {
    margin: 20px 0;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 6px;
}

.zb9ec4article-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    padding: 20px 0;
    border-top: 1px solid #eee;
}

.zb9ec4tags-label {
    font-size: 14px;
    color: #666;
    flex-shrink: 0;
}

.zb9ec4meta-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}

.zb9ec4tagitem a {
    display: inline-block;
    padding: 4px 12px;
    background: #e8f0fe;
    color: #1a73e8;
    border-radius: 15px;
    font-size: 13px;
    text-decoration: none;
    transition: background 0.3s;
}

.zb9ec4tagitem a:hover {
    background: #1a73e8;
    color: #fff;
}

.zb9ec4article-nav {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 25px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

.zb9ec4article-prenext {
    flex: 1;
    min-width: 0;
    font-size: 14px;
    line-height: 1.6;
}

.zb9ec4article-prenext-next {
    text-align: right;
}

.zb9ec4article-prenext a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
}

.zb9ec4article-prenext a:hover {
    color: #1a73e8;
}

.zb9ec4related {
    margin-top: 30px;
}

.zb9ec4related-title {
    font-size: 1.3em;
    color: #333;
    margin-bottom: 20px;
    padding-left: 12px;
    border-left: 4px solid #1a73e8;
}

.zb9ec4related-list {
    list-style: none;
}

.zb9ec4related-item {
    display: flex;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px solid #f0f0f0;
}

.zb9ec4related-item:last-child {
    border-bottom: none;
}

.zb9ec4related-thumb {
    flex-shrink: 0;
    display: block;
    width: 120px;
    height: 80px;
    overflow: hidden;
    border-radius: 6px;
}

.zb9ec4related-thumb img {
    width: 120px;
    height: 80px;
    object-fit: cover;
}

.zb9ec4related-info {
    flex: 1;
    min-width: 0;
}

.zb9ec4related-link {
    display: block;
    color: #333;
    font-weight: 500;
    text-decoration: none;
    margin-bottom: 6px;
    transition: color 0.3s;
}

.zb9ec4related-link:hover {
    color: #1a73e8;
}

.zb9ec4related-info p {
    font-size: 13px;
    color: #888;
    line-height: 1.5;
}

/* 列表页样式 */
.zb9ec4list-main {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    padding: 30px;
}

.zb9ec4list-title {
    font-size: 1.6em;
    color: #333;
    padding-bottom: 20px;
    border-bottom: 2px solid #1a73e8;
    margin-bottom: 25px;
}

.zb9ec4list-items {
    list-style: none;
}

.zb9ec4list-item {
    display: flex;
    gap: 20px;
    padding: 25px 0;
    border-bottom: 1px solid #f0f0f0;
    transition: background 0.3s;
}

.zb9ec4list-item:last-child {
    border-bottom: none;
}

.zb9ec4list-item:hover {
    background: #fafbfc;
}

.zb9ec4list-thumb {
    flex-shrink: 0;
    width: 200px;
    height: 135px;
    overflow: hidden;
    border-radius: 8px;
    display: block;
}

.zb9ec4list-thumb img {
    width: 200px;
    height: 135px;
    object-fit: cover;
    transition: transform 0.3s;
}

.zb9ec4list-thumb:hover img {
    transform: scale(1.05);
}

.zb9ec4list-content {
    flex: 1;
    min-width: 0;
}

.zb9ec4list-item-title {
    font-size: 1.15em;
    margin-bottom: 10px;
    line-height: 1.4;
}

.zb9ec4list-item-title a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
}

.zb9ec4list-item-title a:hover {
    color: #1a73e8;
}

.zb9ec4list-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 20px;
    font-size: 13px;
    color: #999;
    margin-bottom: 10px;
}

.zb9ec4list-meta a {
    color: #1a73e8;
    text-decoration: none;
}

.zb9ec4list-intro {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 分页样式 - 左右布局 */
.zb9ec4pagebar {
    margin-top: 30px;
    padding-top: 25px;
    border-top: 1px solid #eee;
}

.zb9ec4pagelist {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 6px;
    list-style: none;
    width: 100%;
    padding: 0;
    margin: 0;
}

.zb9ec4pagelist > li:first-child {
    margin-right: auto;
}

.zb9ec4pagelist > li:last-child {
    margin-left: auto;
}

.zb9ec4pagelist li,
.zb9ec4pagelist a,
.zb9ec4pagelist span {
    display: inline-block;
}

.zb9ec4pagelist a,
.zb9ec4pagelist span {
    padding: 6px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
}

.zb9ec4pagelist a:hover,
.zb9ec4pagelist .thisclass,
.zb9ec4pagelist .thisclass a {
    background: #1a73e8;
    color: #fff;
    border-color: #1a73e8;
}

/* 侧栏样式 */
.zb9ec4sidebar {
    position: sticky;
    top: 100px;
}

.zb9ec4sidebar-block {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    margin-bottom: 25px;
    overflow: hidden;
}

.zb9ec4sidebar-block:last-child {
    margin-bottom: 0;
}

.zb9ec4sidebar-title {
    font-size: 16px;
    padding: 15px 20px;
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    margin: 0;
}

.zb9ec4sidebar-title a {
    color: #fff;
    text-decoration: none;
}

.zb9ec4sidebar-list {
    list-style: none;
    padding: 10px 15px;
    max-height: 600px;
    overflow-y: auto;
}

.zb9ec4sidebar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 5px;
    border-bottom: 1px solid #f5f5f5;
}

.zb9ec4sidebar-item:last-child {
    border-bottom: none;
}

.zb9ec4sidebar-thumb {
    flex-shrink: 0;
    display: block;
    width: 60px;
    height: 45px;
    overflow: hidden;
    border-radius: 4px;
}

.zb9ec4sidebar-thumb img {
    width: 60px;
    height: 45px;
    object-fit: cover;
}

.zb9ec4sidebar-link {
    flex: 1;
    min-width: 0;
    font-size: 13px;
    color: #444;
    text-decoration: none;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s;
}

.zb9ec4sidebar-link:hover {
    color: #1a73e8;
}

/* 首页文章板块 */
.zb9ec4articles {
    padding: 70px 0;
    background-color: #fff;
}

.zb9ec4article-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 18px;
}

.zb9ec4article-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.zb9ec4article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.zb9ec4article-thumb {
    display: block;
    width: 100%;
    height: 140px;
    overflow: hidden;
}

.zb9ec4article-thumb img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    transition: transform 0.3s;
}

.zb9ec4article-card:hover .zb9ec4article-thumb img {
    transform: scale(1.05);
}

.zb9ec4article-info {
    padding: 14px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.zb9ec4article-info h3 {
    font-size: 14px;
    line-height: 1.4;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.zb9ec4article-info h3 a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
}

.zb9ec4article-info h3 a:hover {
    color: #1a73e8;
}

.zb9ec4article-desc {
    font-size: 12px;
    color: #888;
    line-height: 1.5;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.zb9ec4article-date {
    font-size: 12px;
    color: #aaa;
}

/* 内页与文章板块响应式 */
@media (max-width: 992px) {
    .zb9ec4page-layout {
        grid-template-columns: 1fr;
    }

    .zb9ec4sidebar {
        position: static;
    }

    .zb9ec4article-main {
        padding: 30px;
    }
}

@media (max-width: 768px) {
    .zb9ec4breadcrumb {
        margin-top: 60px;
        padding: 12px 0;
        font-size: 13px;
    }

    .zb9ec4page-main {
        padding: 25px 0 60px;
    }

    .zb9ec4article-main,
    .zb9ec4list-main {
        padding: 20px;
    }

    .zb9ec4article-title {
        font-size: 1.4em;
    }

    .zb9ec4article-meta {
        flex-direction: column;
        gap: 8px;
    }

    .zb9ec4article-nav {
        flex-direction: column;
    }

    .zb9ec4article-prenext-next {
        text-align: left;
    }

    .zb9ec4list-item {
        flex-direction: column;
    }

    .zb9ec4list-thumb {
        width: 100%;
        height: 180px;
    }

    .zb9ec4related-item {
        flex-direction: column;
    }

    .zb9ec4related-thumb {
        width: 100%;
        height: 160px;
    }

    .zb9ec4pagelist > li:first-child,
    .zb9ec4pagelist > li:last-child {
        margin-left: 0;
        margin-right: 0;
    }

    .zb9ec4article-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .zb9ec4articles {
        padding: 60px 0;
    }

    .zb9ec4sidebar-list {
        max-height: none;
    }
}

@media (max-width: 576px) {
    .zb9ec4article-grid {
        grid-template-columns: 1fr;
    }

    .zb9ec4guide-timeline {
        grid-template-columns: 1fr;
    }

    .zb9ec4section-title {
        font-size: 1.5em;
    }

    .zb9ec4article-thumb,
    .zb9ec4article-thumb img {
        height: 180px;
    }

    .zb9ec4hero-buttons .zb9ec4btn {
        width: 100%;
        max-width: none;
    }

    .zb9ec4features,
    .zb9ec4trading,
    .zb9ec4security,
    .zb9ec4download,
    .zb9ec4guide,
    .zb9ec4faq,
    .zb9ec4articles {
        padding: 50px 0;
    }

    .zb9ec4breadcrumb-current {
        display: block;
        margin-top: 5px;
    }
}

/* 动画优化 */
@media (prefers-reduced-motion: reduce) {
    .zb9ec4feature-card,
    .zb9ec4download-row,
    .zb9ec4step-card,
    .zb9ec4trading-row,
    .zb9ec4security-col,
    .zb9ec4faq-item,
    .zb9ec4hero-showcase,
    .zb9ec4article-card {
        animation: none;
        transition: none;
    }
}