/* 列表底部加载提示样式 */
.loading-bottom {
    margin: 24px auto 18px auto;
    padding: 12px 0;
    text-align: center;
    font-size: 1.12em;
    color: #ff9800;
    background: #fffbe6;
    border-radius: 8px;
    width: 90%;
    box-shadow: 0 2px 8px rgba(255, 152, 0, 0.07);
    font-weight: bold;
    letter-spacing: 1px;
}
/* 三行情书诗意样式 */
.shqs-quote-box {
    background: #fff9f3;
    border-left: 4px solid var(--primary-color, #FFD699);
    border-radius: 10px;
    margin: 18px 0 8px 0;
    padding: 22px 18px 22px 28px;
    font-size: 1.18rem;
    color: #d88c7e;
    font-family: 'Noto Serif SC', serif;
    position: relative;
    text-align: left;
    line-height: 2.1;
    box-shadow: 0 2px 10px rgba(255,214,153,0.07);
    word-break: break-all;
}
.shqs-quote-mark {
    font-size: 2.2em;
    color: #e6b07a;
    vertical-align: top;
    font-family: serif;
    font-weight: bold;
    line-height: 1;
}
.shqs-quote-content {
    color: #d88c7e;
    font-size: 1.18em;
    font-family: 'Noto Serif SC', serif;
    padding: 0 6px;
    letter-spacing: 1px;
    display: inline-block;
    vertical-align: middle;
}
@media (max-width: 700px) {
    .shqs-quote-box {
        font-size: 1.01rem;
        padding: 14px 8px 14px 16px;
    }
    .shqs-quote-mark {
        font-size: 1.5em;
    }
}
/* 子tab美化与适配 */
.mailbox-tabs {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 18px;
    margin-bottom: 32px;
    margin-top: 10px;
}
.tab-btn {
    background: #fff;
    color: var(--primary-color, #FFD699);
    border: 1.5px solid var(--primary-color, #FFD699);
    border-radius: 22px;
    padding: 7px 28px;
    font-size: 1.08rem;
    font-family: 'Noto Serif SC', serif;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.18s cubic-bezier(.4,0,.2,1);
    outline: none;
    box-shadow: 0 2px 8px rgba(255,214,153,0.07);
    letter-spacing: 1px;
}
.tab-btn.active, .tab-btn:hover {
    background: var(--primary-color, #FFD699);
    color: #fff;
    border-color: var(--primary-color, #FFD699);
    box-shadow: 0 4px 16px rgba(255,214,153,0.13);
    transform: translateY(-2px) scale(1.04);
}

@media (max-width: 700px) {
    .mailbox-tabs {
        gap: 8px;
        margin-bottom: 18px;
    }
    .tab-btn {
        font-size: 0.98rem;
        padding: 6px 12px;
        border-radius: 15px;
        min-width: 0;
    }
}
/* 子tab美化与适配 */
.mailbox-tabs {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 18px;
    margin-bottom: 32px;
    margin-top: 10px;
}
.tab-btn {
    background: #fff;
    color: var(--primary-color, #FFD699);
    border: 1.5px solid var(--primary-color, #FFD699);
    border-radius: 22px;
    padding: 7px 28px;
    font-size: 1.08rem;
    font-family: 'Noto Serif SC', serif;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.18s cubic-bezier(.4,0,.2,1);
    outline: none;
    box-shadow: 0 2px 8px rgba(255,214,153,0.07);
    letter-spacing: 1px;
}
.tab-btn.active, .tab-btn:hover {
    background: var(--primary-color, #FFD699);
    color: #fff;
    border-color: var(--primary-color, #FFD699);
    box-shadow: 0 4px 16px rgba(255,214,153,0.13);
    transform: translateY(-2px) scale(1.04);
}

@media (max-width: 700px) {
    .mailbox-tabs {
        gap: 8px;
        margin-bottom: 18px;
    }
    .tab-btn {
        font-size: 0.98rem;
        padding: 6px 12px;
        border-radius: 15px;
        min-width: 0;
    }
}
:root {
    --background-color: #FFF5EE;
    --primary-color: #FFD699;
    --text-color: #2D4356;
    --card-radius: 12px;
    --card-shadow: 0 4px 15px rgba(255, 214, 153, 0.15);
    --font-family: 'Noto Serif SC', serif;
}

.mailbox-section {
    padding: 60px 0;
}

.mailbox-container {
    max-width: 900px;
    margin: 100px auto 40px;
    padding: 0 20px;
}

.page-title {
    font-size: 32px;
    color: var(--text-color, #2D4356);
    text-align: center;
    margin-bottom: 40px;
    font-family: var(--font-family, 'Noto Serif SC', serif);
}

.mailbox-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.mail-item {
    background: #fff;
    border-radius: var(--card-radius, 12px);
    box-shadow: var(--card-shadow, 0 4px 15px rgba(255, 214, 153, 0.15));
    padding: 32px 28px 24px 28px;
    position: relative;
    border-left: 5px solid var(--primary-color, #FFD699);
    transition: box-shadow 0.3s, transform 0.3s;
    animation: fadeInUp 0.6s;
    font-family: var(--font-family, 'Noto Serif SC', serif);
}

.mail-item:hover {
    box-shadow: 0 8px 32px rgba(255, 214, 153, 0.25);
    transform: translateY(-2px) scale(1.01);
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px);}
    to { opacity: 1; transform: translateY(0);}
}

.mail-item .mail-meta {
    font-size: 13px;
    color: #888;
    margin-bottom: 10px;
}

.mail-item .mail-content {
    font-size: 17px;
    color: #333;
    white-space: pre-line;
    margin-bottom: 8px;
    line-height: 1.8;
    font-family: var(--font-family, 'Noto Serif SC', serif);
}

.mail-item .mail-public {
    position: absolute;
    top: 18px;
    right: 18px;
    font-size: 12px;
    color: var(--primary-color, #FFD699);
    background: #333;
    border-radius: 8px;
    padding: 2px 10px;
    font-weight: bold;
    letter-spacing: 2px;
}

.loading {
    text-align: center;
    color: #aaa;
    margin: 40px 0;
    font-size: 16px;
    font-family: var(--font-family, 'Noto Serif SC', serif);
}

.mail-item img[alt="邮票"] {
    position: absolute;
    left: 10px;
    top: 10px;
    width: 38px;
    height: 38px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    z-index: 2;
}
@media (max-width: 700px) {
    .mail-item img[alt="邮票"] {
        left: 6px;
        top: 6px;
        width: 28px;
        height: 28px;
    }
    .mail-meta {
        margin-left: 38px !important;
    }
}
@media (max-width: 600px) {
    .mailbox-container {
        margin: 80px 0 20px;
        padding: 0 8px;
    }
    .mail-item {
        padding: 16px 8px 12px 12px;
        border-radius: 10px;
    }
    .page-title {
        font-size: 24px;
        margin-bottom: 24px;
    }
    /* 适配顶部导航栏 */
    .top-nav {
        padding: 10px 0;
    }
    .nav-links {
        gap: 10px;
    }
    .nav-links a {
        font-size: 16px;
        padding: 6px 12px;
        width: auto;
        height: auto;
        border-radius: 16px;
        box-shadow: none;
    }
}