/* ============================================
   数字工厂 - 子页面通用样式
   ============================================ */

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

html, body {
    font-family: 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    background: #0a0a0a;
    color: #fff;
    min-height: 100%;
    overflow-x: hidden;
}

/* ========== 顶部导航 ========== */
.page-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 40px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-logo {
    font-family: 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-style: normal;
    font-size: 0.9rem;
    color: #fff;
    text-decoration: none;
    letter-spacing: 0.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 60%;
}

/* ========== 返回按钮 ========== */
.back-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    font-family: 'DingTalk JinBuTi', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.3s, transform 0.2s;
}

.back-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(-3px);
}

.back-btn svg {
    flex-shrink: 0;
    transition: transform 0.2s;
}

.back-btn:hover svg {
    transform: translateX(-3px);
}

/* ========== 页面主体 ========== */
.page-body {
    min-height: 100vh;
    padding: 120px 40px 80px;
    max-width: 1200px;
    margin: 0 auto;
}

/* ========== 页面标题区 ========== */
.page-header {
    margin-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 40px;
}

.page-label {
    font-family: 'DingTalk JinBuTi', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.75rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    display: block;
    margin-bottom: 16px;
}

.page-title {
    font-family: 'Instrument Serif', serif;
    font-size: 3.5rem;
    line-height: 1.15;
    color: #fff;
    margin-bottom: 16px;
}

.page-desc {
    font-family: 'DingTalk JinBuTi', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 1rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.55);
    max-width: 600px;
}

/* ========== 内容占位区 ========== */
.content-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    border-radius: 20px;
    border: 1px dashed rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.02);
    text-align: center;
    padding: 60px 40px;
}

.placeholder-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    opacity: 0.4;
}

.placeholder-text {
    font-family: 'DingTalk JinBuTi', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.3);
    line-height: 1.7;
}

.placeholder-text strong {
    display: block;
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 8px;
}

/* ========== 报名须知内容区 ========== */
.enroll-content {
    max-width: 900px;
    margin: 0 auto;
}

.info-section {
    margin-bottom: 60px;
    padding: 40px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.section-title {
    font-family: 'Instrument Serif', serif;
    font-style: normal;
    font-size: 1.8rem;
    color: #fff;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.section-text {
    font-family: 'DingTalk JinBuTi', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 1.05rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
}

.section-text.highlight {
    font-size: 2rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
}

/* ========== 时间线样式 ========== */
.timeline {
    margin-top: 24px;
}

.timeline-item {
    display: flex;
    gap: 24px;
    margin-bottom: 32px;
    padding-left: 20px;
    border-left: 3px solid rgba(255, 255, 255, 0.15);
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 6px;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.timeline-date {
    font-family: 'DingTalk JinBuTi', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.6);
    white-space: nowrap;
    min-width: 180px;
    padding-top: 2px;
}

.timeline-content {
    flex: 1;
}

.timeline-content strong {
    display: block;
    font-family: 'DingTalk JinBuTi', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 1.1rem;
    color: #fff;
    margin-bottom: 8px;
}

.timeline-content p {
    font-family: 'DingTalk JinBuTi', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.95rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
}

.note {
    margin-top: 24px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 8px;
    font-family: 'DingTalk JinBuTi', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.75);
    border-left: 3px solid rgba(255, 255, 255, 0.2);
}

/* ========== 联系方式样式 ========== */
.contact-section {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.contact-info {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.contact-label {
    font-family: 'DingTalk JinBuTi', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    min-width: 80px;
}

.contact-phones {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.phone-link {
    font-family: 'DingTalk JinBuTi', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.phone-link:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .page-nav {
        padding: 14px 16px;
    }

    .page-logo {
        font-size: 0.8rem;
        max-width: 50%;
    }

    .back-btn {
        padding: 7px 14px;
        font-size: 0.75rem;
        gap: 5px;
    }

    .back-btn svg {
        width: 16px;
        height: 16px;
    }

    .page-body {
        padding: 90px 16px 50px;
    }

    .page-header {
        margin-bottom: 40px;
        padding-bottom: 30px;
    }

    .page-label {
        font-size: 0.7rem;
        letter-spacing: 2px;
        margin-bottom: 12px;
    }

    .page-title {
        font-size: 2.2rem;
        line-height: 1.2;
        margin-bottom: 12px;
    }

    .page-desc {
        font-size: 0.9rem;
        line-height: 1.7;
    }

    .info-section {
        padding: 28px 20px;
        margin-bottom: 24px;
        border-radius: 14px;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 16px;
        padding-bottom: 10px;
    }

    .section-text {
        font-size: 0.95rem;
    }

    .section-text.highlight {
        font-size: 1.6rem;
    }

    .timeline-item {
        flex-direction: column;
        gap: 10px;
        margin-bottom: 24px;
    }

    .timeline-date {
        min-width: auto;
        font-size: 0.85rem;
    }

    .timeline-content strong {
        font-size: 1rem;
    }

    .timeline-content p {
        font-size: 0.9rem;
    }

    .note {
        margin-top: 20px;
        padding: 14px 16px;
        font-size: 0.9rem;
    }

    .contact-info {
        gap: 24px;
    }

    .contact-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .contact-label {
        font-size: 1rem;
        min-width: auto;
    }

    .contact-phones {
        flex-direction: column;
        width: 100%;
        gap: 10px;
    }

    .phone-link {
        width: 100%;
        text-align: center;
        font-size: 1rem;
        padding: 12px 16px;
    }
}

/* 小屏幕手机优化 */
@media (max-width: 480px) {
    .page-nav {
        padding: 12px 14px;
    }

    .page-logo {
        font-size: 0.75rem;
        max-width: 45%;
    }

    .back-btn {
        padding: 6px 12px;
        font-size: 0.7rem;
        gap: 4px;
    }

    .back-btn svg {
        width: 14px;
        height: 14px;
    }

    .page-body {
        padding: 80px 12px 40px;
    }

    .page-header {
        margin-bottom: 30px;
        padding-bottom: 24px;
    }

    .page-label {
        font-size: 0.65rem;
        letter-spacing: 1.5px;
        margin-bottom: 10px;
    }

    .page-title {
        font-size: 1.8rem;
        line-height: 1.2;
        margin-bottom: 10px;
    }

    .page-desc {
        font-size: 0.85rem;
        line-height: 1.6;
    }

    .info-section {
        padding: 24px 16px;
        margin-bottom: 20px;
        border-radius: 12px;
    }

    .section-title {
        font-size: 1.4rem;
        margin-bottom: 14px;
        padding-bottom: 8px;
    }

    .section-text {
        font-size: 0.9rem;
        line-height: 1.7;
    }

    .section-text.highlight {
        font-size: 1.5rem;
    }

    .timeline-item {
        padding-left: 14px;
        margin-bottom: 20px;
    }

    .timeline-item::before {
        left: -7px;
        width: 11px;
        height: 11px;
    }

    .timeline-date {
        font-size: 0.8rem;
    }

    .timeline-content strong {
        font-size: 0.95rem;
    }

    .timeline-content p {
        font-size: 0.85rem;
    }

    .note {
        margin-top: 16px;
        padding: 12px 14px;
        font-size: 0.85rem;
    }

    .contact-info {
        gap: 20px;
    }

    .contact-item {
        gap: 8px;
    }

    .contact-label {
        font-size: 0.95rem;
    }

    .contact-phones {
        gap: 8px;
    }

    .phone-link {
        font-size: 0.95rem;
        padding: 10px 14px;
    }
}