/**
 * oil.css — 首页（全国油价）专用样式
 * 用途：均价卡片 Hero、调价滚动条、省市查询、油价数据区
 * 设计：全浅色面板；价牌与表格共用油品四色，无深色块
 */

/* ========== Hero 整体：与下方表格同调的浅色卡片 ========== */
.oil-hero {
    background: var(--surface);
    color: var(--ink);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 0;
    margin-bottom: 0.85rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(14, 20, 25, 0.06);
}

/* 顶部琥珀细线：与调价条左边线同色系 */
.oil-hero::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--led-gold);
    pointer-events: none;
}

/* ========== 调价消息：Hero 与表格之间独立一行 ========== */
.oil-ticker {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
    padding: 0.75rem 1rem;
    margin-bottom: 0.85rem;
    background: var(--surface);
    border: 1px solid var(--line);
    border-left: 3px solid var(--led-gold);
    border-radius: var(--radius);
    font-size: 0.875rem;
    line-height: 1.55;
    box-shadow: 0 1px 4px rgba(14, 20, 25, 0.04);
}

.oil-ticker__dot {
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    margin-top: 0.45rem;
    border-radius: 50%;
    background: var(--led-gold);
    box-shadow: 0 0 6px rgba(245, 166, 35, 0.55);
    animation: ticker-pulse 2s ease-in-out infinite;
}

@keyframes ticker-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.45; }
}

@media (prefers-reduced-motion: reduce) {
    .oil-ticker__dot {
        animation: none;
    }
}

.oil-ticker__tag {
    flex-shrink: 0;
    margin-top: 0.1rem;
    padding: 0.15rem 0.45rem;
    background: rgba(245, 166, 35, 0.1);
    border: 1px solid rgba(245, 166, 35, 0.35);
    border-radius: 3px;
    color: var(--led-gold-dim);
    font-family: var(--font-data);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
}

.oil-ticker__text {
    flex: 1;
    min-width: 0;
    color: var(--ink);
}

/* ========== Hero 双栏网格 ========== */
.oil-hero__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    padding: 1.35rem 1.25rem 1.5rem;
    align-items: center;
}

/* ========== 均价卡片（签名：浅底 + 油品四色数字） ========== */
.led-board {
    position: relative;
}

.led-board__frame {
    background: linear-gradient(180deg, #f7f9fc 0%, #eef2f7 100%);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 0.85rem 0.75rem 0.75rem;
}

.led-board__header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.65rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--line);
}

.led-board__brand {
    font-family: var(--font-data);
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--led-gold-dim);
    padding: 0.1rem 0.35rem;
    border: 1px solid rgba(245, 166, 35, 0.4);
    border-radius: 2px;
    background: rgba(245, 166, 35, 0.08);
}

.led-board__label {
    flex: 1;
    font-size: 0.75rem;
    color: var(--muted);
    letter-spacing: 0.04em;
}

.led-board__unit {
    font-family: var(--font-data);
    font-size: 0.6875rem;
    color: var(--muted);
}

.led-board__cells {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.led-cell {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 0.55rem 0.5rem 0.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* 油品顶部色条：与图例 / 表格列同色 */
.led-cell::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.led-cell--92::before { background: var(--grade-92); }
.led-cell--95::before { background: var(--grade-95); }
.led-cell--98::before { background: var(--grade-98); }
.led-cell--diesel::before { background: var(--grade-diesel); }

.led-cell__grade {
    display: block;
    font-family: var(--font-data);
    font-size: 0.6875rem;
    letter-spacing: 0.06em;
    color: var(--muted);
    margin-bottom: 0.2rem;
}

/* 价格数字：按油品着色，与表格 .price-92 等一致 */
.led-cell__price {
    display: block;
    font-family: var(--font-data);
    font-variant-numeric: tabular-nums;
    font-size: clamp(1.35rem, 3.2vw, 1.65rem);
    font-weight: 600;
    letter-spacing: 0.04em;
    line-height: 1.15;
}

.led-cell--92 .led-cell__price { color: var(--grade-92); }
.led-cell--95 .led-cell__price { color: var(--grade-95); }
.led-cell--98 .led-cell__price { color: var(--grade-98); }
.led-cell--diesel .led-cell__price { color: var(--grade-diesel); }

/* ========== 查询面板（浅底深字，与表格区统一） ========== */
.oil-lookup-panel {
    padding: 0 0.25rem;
}

.oil-hero__title {
    font-family: var(--font-display);
    font-size: clamp(1.65rem, 4.5vw, 2.1rem);
    font-weight: 700;
    letter-spacing: 0.05em;
    margin: 0 0 0.35rem;
    color: var(--ink);
    line-height: 1.2;
    text-align: center;
}

.oil-hero__title span {
    color: var(--led-gold-dim);
}

.oil-hero__lead {
    margin: 0 0 1rem;
    color: var(--muted);
    font-size: 0.875rem;
    line-height: 1.55;
    text-align: center;
    /* 避免中文导语末字单独成行 */
    word-break: keep-all;
    overflow-wrap: break-word;
}

.oil-lookup {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.oil-lookup__field {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.oil-lookup__label {
    font-size: 0.75rem;
    color: var(--muted);
    letter-spacing: 0.04em;
}

.oil-lookup select {
    width: 100%;
    min-height: 48px;
    padding: 0.6rem 2.2rem 0.6rem 0.85rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background-color: var(--surface);
    color: var(--ink);
    font-size: 0.9375rem;
    font-family: inherit;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23c4841a' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.85rem center;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.oil-lookup select:hover:not(:disabled) {
    border-color: rgba(245, 166, 35, 0.55);
}

.oil-lookup select:focus {
    border-color: var(--led-gold);
    box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.15);
    outline: none;
}

.oil-lookup select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: #f3f6f9;
}

.oil-lookup select option {
    background: var(--surface);
    color: var(--ink);
}

.oil-lookup__btn {
    min-height: 48px;
    margin-top: 0.15rem;
    padding: 0.65rem 1.25rem;
    border: none;
    border-radius: var(--radius);
    background: var(--led-gold);
    color: #1a1408;
    font-weight: 700;
    font-size: 0.9375rem;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s, transform 0.15s, box-shadow 0.2s;
    box-shadow: 0 2px 6px rgba(196, 132, 26, 0.22);
}

.oil-lookup__btn:hover:not(:disabled) {
    background: #e89a12;
    box-shadow: 0 3px 10px rgba(196, 132, 26, 0.3);
}

.oil-lookup__btn:active:not(:disabled) {
    transform: scale(0.98);
}

.oil-lookup__btn:disabled {
    background: #e8ecf1;
    color: var(--muted);
    cursor: not-allowed;
    box-shadow: none;
}

/* ========== 油价数据区 ========== */
.price-data {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 0;
    box-shadow: 0 2px 12px rgba(14, 20, 25, 0.06);
}

.price-data__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 1rem 1.15rem;
    background: linear-gradient(180deg, #fafbfc 0%, #f3f6f9 100%);
    border-bottom: 1px solid var(--line);
}

.price-data__title {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 650;
    letter-spacing: 0.02em;
    margin: 0;
    color: var(--ink);
    /* 标题与「（更新于…）」同一行，允许窄屏自然换行 */
    word-break: keep-all;
    overflow-wrap: break-word;
}

/* 内联更新日期：全国各地今日油价（更新于YYYY-MM-DD） */
.price-data__meta {
    margin: 0;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0;
    color: var(--muted);
}

.price-data__meta time {
    font-family: var(--font-data);
    font-variant-numeric: tabular-nums;
    color: var(--led-gold-dim);
    font-weight: 600;
}

/* 油品色标图例 */
.grade-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.grade-legend__item {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-family: var(--font-data);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--muted);
    padding: 0.2rem 0.45rem;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 3px;
}

.grade-legend__item::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 2px;
}

.grade-legend__item--92::before { background: var(--grade-92); }
.grade-legend__item--95::before { background: var(--grade-95); }
.grade-legend__item--98::before { background: var(--grade-98); }
.grade-legend__item--diesel::before { background: var(--grade-diesel); }

.price-data__body {
    padding: 0;
}

/* 首页油价表：粘性表头 + 行 hover */
.data-table--oil {
    min-width: 480px;
}

.data-table--oil thead {
    position: sticky;
    top: 0;
    z-index: 2;
}

.data-table--oil th {
    background: #f0f3f7;
    font-family: var(--font-data);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--muted);
    padding: 0.65rem 0.5rem;
    border-bottom: 2px solid var(--line);
}

.data-table--oil th.col-region {
    text-align: left;
    padding-left: 1rem;
}

.data-table--oil td {
    padding: 0.7rem 0.5rem;
    font-family: var(--font-data);
    font-variant-numeric: tabular-nums;
    font-size: 0.9375rem;
    transition: background 0.15s;
}

.data-table--oil td:first-child {
    text-align: left;
    padding-left: 1rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.875rem;
}

.data-table--oil tbody tr {
    transition: background 0.15s;
}

.data-table--oil tbody tr:hover {
    background: rgba(245, 166, 35, 0.04);
}

.data-table--oil tbody tr:nth-child(even) {
    background: rgba(240, 243, 247, 0.5);
}

.data-table--oil tbody tr:nth-child(even):hover {
    background: rgba(245, 166, 35, 0.06);
}

/* 首页加载态：环形指示器 */
.home-page .loading-state__ring {
    width: 2.25rem;
    height: 2.25rem;
    margin: 0 auto 0.85rem;
    border: 2px solid var(--line);
    border-top-color: var(--led-gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
    .home-page .loading-state__ring {
        animation: none;
        border-top-color: var(--line);
    }
}

/* ========== 响应式 ========== */
@media (max-width: 767px) {
    .oil-hero {
        border-radius: var(--radius);
        margin-bottom: 1rem;
    }

    .oil-hero__grid {
        grid-template-columns: 1fr;
        gap: 1.1rem;
        padding: 1rem 0.85rem 1.15rem;
    }

    .led-board__cells {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.35rem;
    }

    .led-cell {
        padding: 0.4rem 0.25rem 0.35rem;
    }

    .led-cell__grade {
        font-size: 0.5625rem;
    }

    .led-cell__price {
        font-size: 1rem;
    }

    .oil-hero__title {
        font-size: 1.5rem;
        text-align: center;
    }

    .oil-hero__lead {
        text-align: center;
        font-size: 0.8125rem;
        margin-bottom: 0.85rem;
    }

    .oil-lookup select,
    .oil-lookup__btn {
        min-height: 44px;
    }

    .oil-ticker {
        padding: 0.65rem 0.75rem;
        font-size: 0.8125rem;
        margin-bottom: 0.75rem;
    }

    .oil-hero {
        margin-bottom: 0.75rem;
    }

    .price-data__head {
        flex-direction: column;
        gap: 0.65rem;
        padding: 0.85rem;
    }

    /* 手机端隐藏油品色标图例 */
    .grade-legend {
        display: none;
    }

    /* 移动端：表格转卡片 */
    .data-table--oil {
        min-width: 0;
    }

    .data-table--oil thead {
        display: none;
    }

    .data-table--oil tbody tr {
        display: block;
        margin: 0.65rem 0.75rem;
        padding: 0;
        background: var(--surface);
        border: 1px solid var(--line);
        border-radius: var(--radius);
        overflow: hidden;
        box-shadow: 0 1px 4px rgba(14, 20, 25, 0.05);
    }

    .data-table--oil tbody tr:nth-child(even) {
        background: var(--surface);
    }

    .data-table--oil tbody tr:hover {
        background: var(--surface);
        border-color: rgba(245, 166, 35, 0.3);
    }

    .data-table--oil td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.55rem 0.85rem;
        border-bottom: 1px solid var(--line);
        text-align: right;
    }

    .data-table--oil td:last-child {
        border-bottom: none;
    }

    .data-table--oil td::before {
        content: attr(data-label);
        font-family: var(--font-body);
        font-size: 0.8125rem;
        font-weight: 500;
        color: var(--muted);
    }

    .data-table--oil td:first-child {
        display: block;
        text-align: center;
        padding: 0.65rem 0.85rem;
        background: linear-gradient(180deg, #f6f8fa 0%, #eef2f6 100%);
        border-bottom: 1px solid var(--line);
        font-size: 0.9375rem;
    }

    .data-table--oil td:first-child::before {
        display: none;
    }

    .data-table--oil td:first-child a {
        color: var(--ink);
    }
}

@media (min-width: 768px) and (max-width: 1024px) {
    .oil-hero__grid {
        grid-template-columns: 1fr;
        max-width: 520px;
        margin: 0 auto;
    }
}