/* ========================================
   留言板 (Guestbook) — 样式表
   深色主题 · 毛玻璃风格
   用 #guestbook-wrapper 提高优先级，防止被主题覆盖
   ======================================== */

/* === 基础容器 === */
#guestbook-wrapper {
    max-width: 680px;
    margin: 0 auto;
    padding: 30px 24px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
    box-sizing: border-box;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #e0e0e0;
}

#guestbook-wrapper *,
#guestbook-wrapper *::before,
#guestbook-wrapper *::after {
    box-sizing: border-box;
}

/* === 头部 === */
#guestbook-wrapper .guestbook-header {
    text-align: center;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

#guestbook-wrapper .guestbook-title {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 6px;
    letter-spacing: 3px;
}

#guestbook-wrapper .guestbook-subtitle {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.45);
    margin: 0;
    letter-spacing: 1px;
}

/* === 表单区域 === */
#guestbook-wrapper .guestbook-form-area {
    background: rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    padding: 22px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

#guestbook-wrapper .guestbook-form-row {
    display: flex;
    gap: 16px;
}

#guestbook-wrapper .guestbook-form-row .guestbook-form-group {
    flex: 1;
}

#guestbook-wrapper .guestbook-form-group {
    margin-bottom: 16px;
    position: relative;
}

#guestbook-wrapper .guestbook-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 6px;
}

#guestbook-wrapper .guestbook-input,
#guestbook-wrapper .guestbook-textarea {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
    color: #e8e8e8;
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
    font-family: inherit;
    line-height: 1.6;
    -webkit-appearance: none;
    appearance: none;
}

#guestbook-wrapper .guestbook-input::placeholder,
#guestbook-wrapper .guestbook-textarea::placeholder {
    color: rgba(255, 255, 255, 0.25);
}

#guestbook-wrapper .guestbook-input:focus,
#guestbook-wrapper .guestbook-textarea:focus {
    outline: none;
    border-color: rgba(120, 160, 255, 0.5);
    box-shadow: 0 0 0 3px rgba(120, 160, 255, 0.1);
    background: rgba(255, 255, 255, 0.08);
}

#guestbook-wrapper .guestbook-textarea {
    resize: vertical;
    min-height: 90px;
}

#guestbook-wrapper .guestbook-char-count {
    position: absolute;
    right: 10px;
    bottom: 8px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.25);
    pointer-events: none;
}

/* === 按钮 === */
#guestbook-wrapper .guestbook-btn {
    display: inline-block;
    padding: 10px 32px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.25s;
    line-height: 1.5;
    letter-spacing: 1px;
}

#guestbook-wrapper .guestbook-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

#guestbook-wrapper .guestbook-btn-primary {
    background: linear-gradient(135deg, #5b7fff, #7c5cfc);
    color: #fff;
    box-shadow: 0 2px 10px rgba(91, 127, 255, 0.2);
}

#guestbook-wrapper .guestbook-btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(91, 127, 255, 0.35);
}

#guestbook-wrapper .guestbook-btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

/* === 提示信息 === */
#guestbook-wrapper .guestbook-msg {
    margin-top: 12px;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
}

#guestbook-wrapper .guestbook-msg-success {
    background: rgba(45, 140, 60, 0.15);
    color: #6fcf7c;
    border: 1px solid rgba(45, 140, 60, 0.25);
}

#guestbook-wrapper .guestbook-msg-error {
    background: rgba(200, 50, 50, 0.15);
    color: #f08080;
    border: 1px solid rgba(200, 50, 50, 0.25);
}

/* === 分隔线 === */
#guestbook-wrapper .guestbook-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: 28px 0;
}

/* === 留言列表 === */
#guestbook-wrapper .guestbook-list {
    min-height: 100px;
}

#guestbook-wrapper .guestbook-loading {
    text-align: center;
    color: rgba(255, 255, 255, 0.35);
    padding: 30px 0;
    font-size: 14px;
}

#guestbook-wrapper .guestbook-empty {
    text-align: center;
    color: rgba(255, 255, 255, 0.3);
    padding: 40px 0;
    font-size: 14px;
}

#guestbook-wrapper .guestbook-item {
    display: flex;
    gap: 14px;
    padding: 18px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

#guestbook-wrapper .guestbook-item:last-child {
    border-bottom: none;
}

#guestbook-wrapper .guestbook-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, #5b7fff, #8b5cf6);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(91, 127, 255, 0.25);
}

#guestbook-wrapper .guestbook-item-body {
    flex: 1;
    min-width: 0;
}

#guestbook-wrapper .guestbook-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

#guestbook-wrapper .guestbook-author {
    font-size: 14px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.85);
}

#guestbook-wrapper .guestbook-time {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.3);
}

#guestbook-wrapper .guestbook-item-content {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    word-break: break-word;
}

/* === 隐藏按钮 === */
#guestbook-wrapper .guestbook-hide-btn {
    width: 24px;
    height: 24px;
    border: none;
    border-radius: 4px;
    background: transparent;
    color: rgba(255, 255, 255, 0.2);
    font-size: 18px;
    line-height: 24px;
    cursor: pointer;
    flex-shrink: 0;
    align-self: flex-start;
    margin-top: 18px;
    transition: all 0.2s;
}

#guestbook-wrapper .guestbook-hide-btn:hover {
    background: rgba(200, 50, 50, 0.15);
    color: #f08080;
}

/* === 分页 === */
#guestbook-wrapper .guestbook-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

#guestbook-wrapper .guestbook-page-btn {
    padding: 6px 18px;
    font-size: 13px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    transition: all 0.2s;
}

#guestbook-wrapper .guestbook-page-btn:hover {
    background: rgba(91, 127, 255, 0.2);
    color: #fff;
    border-color: rgba(91, 127, 255, 0.4);
}

#guestbook-wrapper .guestbook-page-info {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
}

/* === 响应式 === */
@media (max-width: 600px) {
    #guestbook-wrapper {
        padding: 20px 16px;
        margin: 0 10px;
        border-radius: 12px;
    }

    #guestbook-wrapper .guestbook-form-row {
        flex-direction: column;
        gap: 0;
    }

    #guestbook-wrapper .guestbook-title {
        font-size: 20px;
    }

    #guestbook-wrapper .guestbook-form-area {
        padding: 16px;
    }
}