/* ================================================================
 * 运费查询页面样式(freight-query.html 专用)
 * 设计原则:
 *   - 颜色/圆角/阴影统一从 style.css 的 CSS 变量取,不重复定义
 *   - 类名前缀 fq-(freight-query 缩写),避免与官网首页 / 订单页冲突
 *   - 三栏布局: 表单(左) + 线路列表(中) + 详情(右)
 *   - 窗口 < 1100px 自动降级为单列堆叠
 * ================================================================ */


/* ============ 公共变量补充 ============ */
:root {
    /* 本页专用浅蓝背景(略带紫调,与官网首页区分) */
    --fq-bg: #f4f6fb;
    --fq-card-bg: #ffffff;
    --fq-border: #e2e8f0;
    --fq-border-light: #f1f5f9;
}


/* ============ 全局 body 背景 ============ */
body {
    background: var(--fq-bg);
}


/* ============ 顶部导航(参考 order-input.css 的 oi-header 风格) ============ */
.fq-header {
    background: #fff;
    border-bottom: 1px solid var(--fq-border);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.fq-header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    height: 56px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.fq-back-link {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--color-gray-500);
    font-size: 13px;
    transition: color .2s;
}

.fq-back-link:hover {
    color: var(--color-primary);
}

.fq-header-sep {
    width: 1px;
    height: 20px;
    background: var(--fq-border);
}

.fq-header-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-gray-900);
    margin: 0;
}

.fq-header-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 14px;
}

.fq-header-user {
    font-size: 13px;
    color: var(--color-gray-700);
    font-weight: 500;
}

.fq-header-user-link {
    font-size: 13px;
    color: var(--color-primary);
    font-weight: 500;
}

.fq-header-user-link:hover {
    text-decoration: underline;
}

.fq-header-login-btn {
    padding: 7px 18px;
    background: var(--color-primary);
    color: #fff;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
}

.fq-header-login-btn:hover {
    background: var(--color-primary-dark);
}


/* ============ 主体三栏布局 ============ */
.fq-main {
    min-height: calc(100vh - 56px);
    padding: 24px 0 60px;
}

.fq-layout {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    display: grid;
    grid-template-columns: 300px 1fr 380px;
    gap: 20px;
    align-items: start;
}


/* ============ 左栏:查询表单 ============ */
.fq-left {
    background: var(--fq-card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    padding: 24px 22px;
    position: sticky;
    top: 80px;
}

.fq-side-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--fq-border-light);
}

/* 单个表单字段块 */
.fq-field {
    margin-bottom: 16px;
}

.fq-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: 6px;
}

.fq-required {
    color: #ef4444;
    margin-left: 2px;
}

.fq-field-hint {
    font-size: 11px;
    color: var(--color-gray-400);
    margin-bottom: 6px;
    line-height: 1.4;
}

/* 输入框公共样式 */
.fq-input {
    width: 100%;
    height: 38px;
    padding: 0 12px;
    border: 1px solid var(--fq-border);
    border-radius: var(--radius);
    font-size: 13px;
    font-family: inherit;
    color: var(--color-gray-900);
    background: #fff;
    transition: var(--transition);
}

.fq-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* 长宽高三段输入行 */
.fq-size-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.fq-size-row .fq-input {
    flex: 1;
    min-width: 0;
    padding: 0 8px;
    text-align: center;
}

.fq-size-x {
    color: var(--color-gray-400);
    font-size: 14px;
    flex-shrink: 0;
}

/* picker 按钮(国家/货物类型) */
.fq-picker {
    width: 100%;
    height: 38px;
    padding: 0 12px;
    border: 1px solid var(--fq-border);
    border-radius: var(--radius);
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--color-gray-900);
    text-align: left;
    transition: var(--transition);
}

.fq-picker:hover {
    border-color: var(--color-primary);
}

.fq-picker-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 未选时显示灰色占位 */
.fq-picker-text.is-placeholder {
    color: var(--color-gray-400);
}

.fq-picker-arrow {
    width: 14px;
    height: 14px;
    color: var(--color-gray-400);
    flex-shrink: 0;
    margin-left: 8px;
}

/* 立即查询按钮 */
.fq-submit {
    width: 100%;
    height: 42px;
    margin-top: 8px;
    background: var(--color-primary);
    color: #fff;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}

.fq-submit:hover:not(:disabled) {
    background: var(--color-primary-dark);
    box-shadow: var(--shadow-md);
}

.fq-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.fq-submit-tip {
    font-size: 11px;
    color: var(--color-gray-400);
    text-align: center;
    margin-top: 10px;
}


/* ============ 中栏:线路列表 ============ */
.fq-mid {
    background: var(--fq-card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    padding: 22px 24px;
    min-height: 500px;
}

/* 查询摘要(国家/重量/品类/尺寸) */
.fq-mid-summary {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    padding: 12px 14px;
    background: var(--fq-bg);
    border-radius: var(--radius);
    font-size: 13px;
    color: var(--color-gray-700);
    margin-bottom: 16px;
}

.fq-summary-item {
    font-weight: 500;
}

.fq-summary-sep {
    color: var(--color-gray-300);
}

/* 线路类型 tabs */
.fq-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--fq-border-light);
    padding-bottom: 14px;
}

.fq-tab {
    padding: 7px 16px;
    border: 1px solid var(--fq-border);
    background: #fff;
    border-radius: 20px;
    font-size: 12px;
    color: var(--color-gray-600);
    transition: var(--transition);
}

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

.fq-tab.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    font-weight: 500;
}

/* 中栏主体(占位/加载/空/列表 共享高度) */
.fq-mid-body {
    min-height: 360px;
    position: relative;
}

/* 初始占位 / 空结果 共用样式 */
.fq-placeholder,
.fq-empty,
.fq-detail-placeholder {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-gray-400);
}

.fq-placeholder-icon,
.fq-empty-icon {
    font-size: 56px;
    margin-bottom: 12px;
}

.fq-placeholder-text,
.fq-empty-text {
    font-size: 13px;
    line-height: 1.6;
}

/* 加载中(spinner) */
.fq-loading,
.fq-detail-loading {
    text-align: center;
    padding: 80px 20px;
    color: var(--color-gray-500);
    font-size: 13px;
}

.fq-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    margin: 0 auto 12px;
    animation: fqSpin 0.8s linear infinite;
}

@keyframes fqSpin {
    to { transform: rotate(360deg); }
}

/* 线路卡片列表 */
.fq-line-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.fq-line-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 18px;
    background: #fff;
    border: 1px solid var(--fq-border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

.fq-line-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.fq-line-card.is-active {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, #ffffff 0%, #f0f6ff 100%);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.fq-line-card__img {
    width: 64px;
    height: 64px;
    border-radius: var(--radius);
    object-fit: cover;
    background: var(--fq-bg);
    flex-shrink: 0;
}

.fq-line-card__main {
    flex: 1;
    min-width: 0;
}

.fq-line-card__name {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 4px;
}

.fq-line-card__time {
    font-size: 12px;
    color: var(--color-gray-500);
}

.fq-line-card__price {
    flex-shrink: 0;
    text-align: right;
}

.fq-line-card__price-sym {
    font-size: 13px;
    color: var(--color-accent);
    font-weight: 600;
}

.fq-line-card__price-num {
    font-size: 22px;
    color: var(--color-accent);
    font-weight: 700;
    line-height: 1;
}

.fq-line-card__price-label {
    font-size: 11px;
    color: var(--color-gray-400);
    margin-top: 2px;
}


/* ============ 右栏:线路详情 ============ */
.fq-right {
    background: var(--fq-card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    padding: 22px 22px 24px;
    min-height: 500px;
    position: sticky;
    top: 80px;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
}

/* 总价区块 */
.fq-detail-total {
    background: linear-gradient(135deg, #f0f6ff 0%, #e7f0ff 100%);
    border-radius: var(--radius);
    padding: 16px 18px;
    margin-bottom: 18px;
}

.fq-detail-line-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: 6px;
}

.fq-detail-price {
    display: flex;
    align-items: baseline;
    color: var(--color-primary);
}

.fq-detail-price-sym {
    font-size: 14px;
    font-weight: 600;
    margin-right: 2px;
}

.fq-detail-price-num {
    font-size: 30px;
    font-weight: 700;
    line-height: 1;
}

/* 各分区(费用明细/参考价/计费规则等) */
.fq-detail-section {
    margin-bottom: 20px;
}

.fq-detail-section-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 10px;
    padding-left: 8px;
    border-left: 3px solid var(--color-primary);
    line-height: 1.2;
}

/* 费用明细列表 */
.fq-detail-breakdown {
    background: var(--fq-bg);
    border-radius: var(--radius);
    padding: 8px 0;
}

.fq-detail-breakdown li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    font-size: 12px;
    color: var(--color-gray-700);
    border-bottom: 1px solid var(--fq-border-light);
}

.fq-detail-breakdown li:last-child {
    border-bottom: none;
}

.fq-detail-breakdown__name {
    color: var(--color-gray-600);
}

.fq-detail-breakdown__price {
    font-weight: 600;
    color: var(--color-primary);
}

/* 参考价格表 */
.fq-ref-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.fq-ref-table th,
.fq-ref-table td {
    padding: 8px 6px;
    border-bottom: 1px solid var(--fq-border-light);
    text-align: center;
}

.fq-ref-table th {
    background: var(--color-primary);
    color: #fff;
    font-weight: 500;
    padding: 9px 6px;
}

.fq-ref-table th:first-child {
    border-top-left-radius: var(--radius);
}

.fq-ref-table th:last-child {
    border-top-right-radius: var(--radius);
}

.fq-ref-table td {
    color: var(--color-gray-700);
}

.fq-ref-table tr:nth-child(even) td {
    background: var(--fq-bg);
}

.fq-ref-table__pric {
    color: var(--color-accent);
    font-weight: 600;
}

/* 富文本区块(计费规则/线路特点/其他说明) */
.fq-detail-html {
    font-size: 12px;
    color: var(--color-gray-600);
    line-height: 1.7;
    padding: 0 4px;
    word-break: break-word;
}

.fq-detail-html img {
    max-width: 100%;
}

/* 立即下单 CTA */
.fq-detail-cta {
    display: block;
    text-align: center;
    padding: 12px 16px;
    background: var(--color-accent);
    color: #fff;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    margin-top: 8px;
}

.fq-detail-cta:hover {
    background: #b8650a;
    box-shadow: var(--shadow-md);
}


/* ============ 公共 Modal(国家/货物类型) ============ */
.fq-modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: none;
    align-items: center;
    justify-content: center;
}

.fq-modal.is-open {
    display: flex;
}

.fq-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(2px);
}

.fq-modal-content {
    position: relative;
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    width: 720px;
    max-width: calc(100vw - 40px);
    max-height: calc(100vh - 80px);
    display: flex;
    flex-direction: column;
    animation: fqModalIn 0.2s ease;
}

.fq-modal-content--country {
    width: 760px;
}

.fq-modal-content--goods {
    width: 680px;
}

@keyframes fqModalIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.fq-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px;
    border-bottom: 1px solid var(--fq-border-light);
}

.fq-modal-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-gray-900);
    margin: 0;
}

.fq-modal-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: var(--color-gray-500);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.fq-modal-close:hover {
    background: var(--fq-bg);
    color: var(--color-gray-900);
}

.fq-modal-close svg {
    width: 18px;
    height: 18px;
}

/* Modal 搜索框 */
.fq-modal-search {
    position: relative;
    padding: 14px 22px 10px;
}

.fq-modal-search-icon {
    position: absolute;
    left: 34px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: var(--color-gray-400);
    pointer-events: none;
}

.fq-modal-search-input {
    width: 100%;
    height: 38px;
    padding: 0 14px 0 38px;
    border: 1px solid var(--fq-border);
    border-radius: var(--radius);
    font-size: 13px;
    font-family: inherit;
    background: var(--fq-bg);
    transition: var(--transition);
}

.fq-modal-search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Modal 内部 tabs(大洲切换) */
.fq-modal-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 0 22px 12px;
    border-bottom: 1px solid var(--fq-border-light);
}

.fq-modal-tab {
    padding: 6px 14px;
    border: 1px solid var(--fq-border);
    background: #fff;
    border-radius: 16px;
    font-size: 12px;
    color: var(--color-gray-600);
    transition: var(--transition);
}

.fq-modal-tab:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.fq-modal-tab.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

/* Modal 主体(可滚动) */
.fq-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 14px 22px 22px;
    min-height: 200px;
}

.fq-modal-empty {
    text-align: center;
    color: var(--color-gray-400);
    font-size: 13px;
    padding: 60px 20px;
}

/* 国家网格 */
.fq-country-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 8px;
}

.fq-country-item {
    padding: 10px 12px;
    border: 1px solid var(--fq-border);
    border-radius: var(--radius);
    background: #fff;
    font-size: 13px;
    color: var(--color-gray-700);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.fq-country-item:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: #f0f6ff;
}

/* 货物类型列表(父类 + 子货物网格) */
.fq-goods-group {
    margin-bottom: 16px;
}

.fq-goods-group__title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 8px;
    padding-left: 8px;
    border-left: 3px solid var(--color-primary);
}

.fq-goods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 6px;
}

.fq-goods-item {
    padding: 8px 10px;
    border: 1px solid var(--fq-border);
    border-radius: var(--radius);
    font-size: 12px;
    color: var(--color-gray-700);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.fq-goods-item:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: #f0f6ff;
}


/* ============ Toast 简易提示 ============ */
.fq-toast {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    padding: 10px 20px;
    background: rgba(15, 23, 42, 0.92);
    color: #fff;
    font-size: 13px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    z-index: 300;
    opacity: 0;
    pointer-events: none;
    transition: all 0.25s ease;
}

.fq-toast.is-show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}


/* ============ 响应式: 窗口 < 1100px 降级单列 ============ */
@media (max-width: 1100px) {
    .fq-layout {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .fq-left,
    .fq-right {
        position: static;
        max-height: none;
    }

    .fq-header-inner,
    .fq-layout {
        padding-left: 16px;
        padding-right: 16px;
    }
}

@media (max-width: 640px) {
    .fq-modal-content {
        width: calc(100vw - 24px);
        max-height: calc(100vh - 60px);
    }

    .fq-country-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}