/* ===========================
   基础变量（颜色/阴影/尺寸）- 移动优先
   =========================== */
:root {
    --bg: linear-gradient(135deg, #191a2b 0%, #25274d 100%);
    --card-bg: rgba(36,34,67,0.93);
    --card-border: rgba(189,196,255,0.15);
    --text: #f5f6fa;
    --muted: #94a3b8;
    --accent: #8b5cf6;
    --accent2: #00f5ff;
    --radius: 20px;
    --shadow: 0 12px 36px rgba(50,30,130,0.16),0 1.5px 6px #0002;
    /* 手机端专用变量 */
    --mobile-padding: 12px;
    --mobile-gap: 14px;
    --mobile-font-base: 15px;
    --mobile-radius: 16px;
}

/* ===========================
   基础样式
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    font-family: 'Segoe UI', 'Roboto', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--text);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

/* ===========================
   背景动线
   =========================== */
.bg-lines {
    position: fixed;
    inset: 0;
    z-index: -1;
    opacity: 0.32;
    pointer-events: none;
}

/* ===========================
   容器布局
   =========================== */
.wrap {
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
    padding: var(--mobile-padding);
    padding-top: 24px;
    padding-bottom: 40px;
    box-sizing: border-box;
    min-height: 100vh;
}

/* ===========================
   返回按钮
   =========================== */
.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    margin-bottom: 20px;
    background: rgba(139,92,246,0.15);
    border: 1px solid var(--card-border);
    border-radius: var(--mobile-radius);
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    backdrop-filter: blur(12px);
}

.back-btn:hover {
    background: rgba(139,92,246,0.25);
    transform: translateX(-2px);
}

.back-btn:active {
    transform: translateX(0) scale(0.98);
}

/* ===========================
   排行榜容器
   =========================== */
.order_box {
    width: 100%;
    padding: 24px;
    margin: 0 auto;
}

.card {
    background: var(--card-bg);
    border: 1.5px solid var(--card-border);
    border-radius: var(--mobile-radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
    transition: all 0.3s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 48px rgba(139,92,246,0.3);
}

/* 标题 */
.order_header {
    text-align: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--card-border);
}

.order_header h1 {
    font-size: clamp(24px, 6vw, 32px);
    margin-bottom: 8px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.subtitle {
    color: var(--muted);
    font-size: 14px;
    margin-top: 4px;
}

/* ===========================
   排行榜列表容器
   =========================== */
.ranking_section {
    margin-bottom: 20px;
}

.table-wrapper {
    background: rgba(139,92,246,0.05);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 16px;
    max-height: 450px;
    overflow-x: auto;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--accent) rgba(139,92,246,0.1);
}

.table-wrapper::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.table-wrapper::-webkit-scrollbar-track {
    background: rgba(139,92,246,0.1);
    border-radius: 3px;
}

.table-wrapper::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 3px;
}

.table-wrapper::-webkit-scrollbar-thumb:hover {
    background: var(--accent2);
}

/* ===========================
   表格样式
   =========================== */
.ranking-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.ranking-table thead {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(36,34,67,0.95);
    backdrop-filter: blur(10px);
}

.ranking-table th {
    padding: 12px 8px;
    text-align: left;
    font-weight: 600;
    color: var(--accent2);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--card-border);
    white-space: nowrap;
}

.ranking-table tbody tr {
    border-bottom: 1px solid rgba(189,196,255,0.1);
    transition: all 0.2s;
}

.ranking-table tbody tr:hover {
    background: rgba(139,92,246,0.1);
}

.ranking-table tbody tr:last-child {
    border-bottom: none;
}

.ranking-table td {
    padding: 14px 8px;
    color: var(--text);
    vertical-align: middle;
}

/* 排名列 */
.rank-col {
    width: 80px;
    text-align: center;
}

.rank-cell {
    text-align: center;
    font-weight: 600;
}

.rank-number {
    display: inline-block;
    min-width: 24px;
    font-size: 15px;
}

.rank-medal {
    font-size: 18px;
    margin-left: 4px;
    vertical-align: middle;
}

/* 姓名列 */
.name-col {
    width: auto;
    min-width: 100px;
}

.name-cell {
    font-weight: 500;
    color: var(--text);
}

/* 班级列 */
.class-col {
    width: auto;
    min-width: 120px;
}

.class-cell {
    color: var(--muted);
    font-size: 13px;
}

/* 分数列 */
.score-col {
    width: 100px;
    text-align: right;
}

.score-cell {
    text-align: right;
}

.score-value {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(0,245,255,0.2));
    border-radius: 12px;
    font-weight: 700;
    color: var(--accent2);
    font-size: 15px;
    min-width: 50px;
    text-align: center;
}

/* 前三名特殊样式 */
.ranking-table tbody tr.rank-1 {
    background: linear-gradient(135deg, rgba(255,215,0,0.15), rgba(255,215,0,0.05));
    border-left: 3px solid #ffd700;
}

.ranking-table tbody tr.rank-1:hover {
    background: linear-gradient(135deg, rgba(255,215,0,0.25), rgba(255,215,0,0.1));
}

.ranking-table tbody tr.rank-2 {
    background: linear-gradient(135deg, rgba(192,192,192,0.15), rgba(192,192,192,0.05));
    border-left: 3px solid #c0c0c0;
}

.ranking-table tbody tr.rank-2:hover {
    background: linear-gradient(135deg, rgba(192,192,192,0.25), rgba(192,192,192,0.1));
}

.ranking-table tbody tr.rank-3 {
    background: linear-gradient(135deg, rgba(205,127,50,0.15), rgba(205,127,50,0.05));
    border-left: 3px solid #cd7f32;
}

.ranking-table tbody tr.rank-3:hover {
    background: linear-gradient(135deg, rgba(205,127,50,0.25), rgba(205,127,50,0.1));
}

/* 当前用户行高亮 */
.ranking-table tbody tr.current-user {
    background: linear-gradient(135deg, rgba(0,245,255,0.2), rgba(139,92,246,0.2));
    border-left: 3px solid var(--accent2);
    font-weight: 600;
}

.ranking-table tbody tr.current-user:hover {
    background: linear-gradient(135deg, rgba(0,245,255,0.3), rgba(139,92,246,0.3));
}

.ranking-table tbody tr.current-user .name-cell {
    color: var(--accent2);
}

/* 空数据和错误提示 */
.empty-message,
.error-message {
    text-align: center;
    padding: 40px 20px;
    color: var(--muted);
    font-size: 14px;
}

.error-message {
    color: #ff6b6b;
}

/* ===========================
   我的排名区域
   =========================== */
.my_order_box {
    background: linear-gradient(135deg, rgba(139,92,246,0.15), rgba(0,245,255,0.15));
    padding: 18px 20px;
    border-radius: 12px;
    margin-top: 20px;
    box-shadow: 0 4px 16px rgba(139,92,246,0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--card-border);
}

.my_order_label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    color: var(--text);
    font-weight: 500;
}

.label-icon {
    font-size: 20px;
}

.my_order_label label {
    margin: 0;
    cursor: default;
}

.my_order_value {
    font-size: 16px;
    font-weight: 600;
    color: var(--accent2);
    text-shadow: 0 0 10px rgba(0,245,255,0.3);
}

.my-rank-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.my-rank-number {
    font-weight: 700;
    color: var(--accent2);
    font-size: 18px;
}

.my-rank-name {
    font-weight: 600;
    color: var(--text);
}

.my-rank-class {
    color: var(--muted);
    font-size: 14px;
}

.my-rank-score {
    font-weight: 700;
    color: var(--accent);
    font-size: 16px;
}

.my-rank-separator {
    color: var(--muted);
    opacity: 0.5;
}

.no-rank {
    color: var(--muted);
    font-style: italic;
}

/* ===========================
   移动端优化
   =========================== */
@media (max-width: 480px) {
    .wrap {
        padding: 10px;
        padding-top: 20px;
        padding-bottom: 32px;
    }

    .order_box {
        padding: 18px;
        border-radius: 14px;
    }

    .order_header h1 {
        font-size: 22px;
    }

    .table-wrapper {
        padding: 12px;
        max-height: 400px;
    }

    .ranking-table {
        font-size: 13px;
    }

    .ranking-table th {
        padding: 10px 6px;
        font-size: 12px;
    }

    .ranking-table td {
        padding: 12px 6px;
    }

    .rank-col {
        width: 60px;
    }

    .name-col {
        min-width: 80px;
    }

    .class-col {
        min-width: 100px;
    }

    .score-col {
        width: 80px;
    }

    .score-value {
        padding: 3px 10px;
        font-size: 14px;
        min-width: 45px;
    }

    .my-rank-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }

    .my-rank-separator {
        display: none;
    }

    .my_order_box {
        padding: 14px 16px;
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }

    .my_order_label {
        font-size: 14px;
    }

    .my_order_value {
        font-size: 18px;
    }

    .back-btn {
        padding: 8px 14px;
        font-size: 13px;
    }
}

/* 超小屏优化 */
@media (max-width: 375px) {
    .wrap {
        padding: 8px;
    }

    .order_box {
        padding: 14px;
    }

    .table-wrapper {
        padding: 10px;
    }

    .ranking-table {
        font-size: 12px;
    }

    .ranking-table th {
        padding: 8px 4px;
        font-size: 11px;
    }

    .ranking-table td {
        padding: 10px 4px;
    }

    .rank-col {
        width: 50px;
    }

    .score-value {
        padding: 2px 8px;
        font-size: 13px;
        min-width: 40px;
    }
}

/* 安全区域适配 */
@supports (padding: max(0px)) {
    .wrap {
        padding-left: max(12px, env(safe-area-inset-left));
        padding-right: max(12px, env(safe-area-inset-right));
        padding-bottom: max(40px, env(safe-area-inset-bottom));
    }
}

/* ========== 全局移动端兼容增强 ========== */
html, body {
    overscroll-behavior-y: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

a {
    -webkit-tap-highlight-color: transparent;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

.rank-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 15px;
}

.rank-tab {
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid #aaa;
    background: rgba(255,255,255,0.3);
    color: #333;
    cursor: pointer;
    font-size: 0.7rem;
    transition: 0.2s;
}

.rank-tab.active {
    background: #4f46e5;
    color: #fff;
    border-color: #4f46e5;
}

.page-footer {
    display: block;
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--card-border);
}

.page-footer p,a {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.6;
}