* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
}

.container {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 24px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 520px;
    width: 100%;
}

h1 {
    text-align: center;
    font-size: 26px;
    margin-bottom: 6px;
    background: linear-gradient(90deg, #f7971e, #ffd200);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
    margin-bottom: 14px;
}

/* 难度选择 */
.difficulty-selector {
    display: flex;
    gap: 6px;
    justify-content: center;
    margin-bottom: 14px;
}

.diff-btn {
    padding: 6px 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    font-size: 13px;
    transition: all 0.3s;
    font-family: inherit;
}

.diff-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.diff-btn.active {
    background: linear-gradient(135deg, #f7971e, #ffd200);
    color: #1a1a2e;
    border-color: transparent;
    font-weight: 600;
}

/* 游戏信息栏 */
.game-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding: 0 2px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
}

.info-item .icon {
    font-size: 16px;
}

.info-item .value {
    font-weight: 600;
    color: #ffd200;
    min-width: 18px;
    text-align: center;
}

/* 数独网格 */
.sudoku-grid {
    display: grid;
    grid-template-columns: repeat(9, 1fr);
    gap: 1px;
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    overflow: hidden;
    aspect-ratio: 1;
    margin-bottom: 10px;
}

.cell {
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    position: relative;
    user-select: none;
    aspect-ratio: 1;
}

.cell:hover {
    background: rgba(255, 255, 255, 0.12);
}

.cell.selected {
    background: rgba(255, 215, 0, 0.25) !important;
    box-shadow: inset 0 0 0 2px #ffd200;
}

/* 给定数字（题目）- 白色粗体 */
.cell.given {
    color: #ffffff;
    font-weight: 700;
}

/* 玩家填的数字 - 绿色区分 */
.cell.player {
    color: #4caf50;
    font-weight: 600;
}

/* 检查出的错误数字标红（红字=错误，与红底=雷数警示区分） */
.sudoku-grid .cell.player.checked-wrong {
    color: #ef5350;
    font-weight: 700;
}

/* 数独语法冲突标红（同行/列/宫重复） */
.sudoku-grid .cell.player.conflict {
    color: #ef5350;
    font-weight: 700;
    animation: conflictPulse 0.6s ease;
}

@keyframes conflictPulse {
    0%, 100% { background: rgba(255, 0, 0, 0.1); }
    50% { background: rgba(255, 0, 0, 0.3); }
}

/* 红色背景提示 = 该数字等于相邻格子中的雷数
   文字颜色保持身份色（白=题目 / 绿=已填），与"红字=错误"区分开 */
.sudoku-grid .cell.hint {
    background: rgba(255, 0, 0, 0.25);
    font-weight: 700;
}

.sudoku-grid .cell.player.hint {
    color: #7ee68a;
}

/* 放大镜检查通过的宫 - 整宫淡绿背景 */
.sudoku-grid .cell.box-correct {
    background: rgba(76, 175, 80, 0.16);
}

/* 宫左上角的检查结果徽标（✅ 通过 / ❌ 有错误） */
.sudoku-grid .cell.box-correct-tl::after {
    content: '✅';
    position: absolute;
    top: 0;
    left: 1px;
    font-size: 10px;
    line-height: 1.2;
}

.sudoku-grid .cell.box-wrong-tl::after {
    content: '❌';
    position: absolute;
    top: 0;
    left: 1px;
    font-size: 10px;
    line-height: 1.2;
}

/* 已铲除地雷的格子 - 蓝色背景 */
.sudoku-grid .cell.shoveled {
    background: rgba(33, 150, 243, 0.3);
}

.sudoku-grid .cell.shoveled::after {
    content: '✓';
    position: absolute;
    top: 0;
    right: 2px;
    font-size: 11px;
    font-weight: bold;
    color: #81d4fa;
}

/* 3x3 宫格边框 */
.cell:nth-child(3n) {
    border-right: 2px solid rgba(255, 255, 255, 0.3);
}

.cell:nth-child(9n) {
    border-right: none;
}

.cell:nth-child(n+19):nth-child(-n+27) {
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
}

.cell:nth-child(n+46):nth-child(-n+54) {
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
}

/* 标记模式 - 格子内9宫格虚线 */
.cell.mark-mode {
    cursor: cell;
}

.cell .mark-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    pointer-events: none;
}

.cell .mark-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8px;
    color: rgba(255, 255, 255, 0.4);
    pointer-events: auto;
    cursor: pointer;
    border: 0.5px solid rgba(255, 255, 255, 0.08);
    border-radius: 1px;
    transition: background 0.1s;
}

.cell .mark-cell:hover {
    background: rgba(255, 255, 255, 0.1);
}

.cell .mark-cell.active {
    color: rgba(255, 255, 255, 0.7);
    font-weight: 600;
}

/* 非标记模式下，有标记数字的格子显示紧凑小数字 - 3x3 grid 固定位置 */
.cell .marks-compact {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    padding: 1px;
    pointer-events: none;
}

.cell .marks-compact .mark-num {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 7px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1;
}

/* 数字键盘 + 缩略图 合并区域 - 同一个大方框 */
.numpad-thumbnail-area {
    display: flex;
    flex-direction: column;
    gap: 3px;
    margin-bottom: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    padding: 4px;
}

/* 数字键盘 - 每个按钮内嵌缩略图 */
.numpad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
}

.num-btn-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    padding: 3px 3px 2px;
    cursor: pointer;
    transition: all 0.2s;
}

.num-btn-wrapper:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

.num-btn-wrapper:active {
    transform: translateY(0);
}

.num-btn-wrapper .num-label {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    line-height: 1.1;
    pointer-events: none;
}

/* 每个数字按钮对应的缩略图（3x3宫格分布图：每个小格代表一个3x3宫） */
.num-thumb {
    width: 18%;
    aspect-ratio: 1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 1px;
    padding: 2px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 4px;
    transition: all 0.2s;
    position: relative;
    border: 1.5px solid transparent;
}

.num-thumb .nt-cell {
    border-radius: 1px;
    background: transparent;
}

.num-thumb .nt-cell.filled {
    background: rgba(255, 255, 255, 0.5);
}

.num-thumb .nt-cell.given {
    background: rgba(255, 255, 255, 0.7);
}

/* 擦除按钮单独一行 */
.num-btn-wrapper.erase-wrapper {
    grid-column: 1 / -1;
    flex-direction: row;
    justify-content: center;
    padding: 6px;
    background: rgba(239, 83, 80, 0.2);
    border-color: rgba(239, 83, 80, 0.3);
}

.num-btn-wrapper.erase-wrapper:hover {
    background: rgba(239, 83, 80, 0.35);
}

.num-btn-wrapper.erase-wrapper .num-label {
    color: #ef5350;
    font-size: 14px;
}

/* 操作按钮 */
.action-bar {
    display: flex;
    gap: 6px;
    justify-content: center;
    flex-wrap: wrap;
}

.action-btn {
    padding: 8px 12px;
    border: none;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
    flex: 1;
    min-width: 70px;
    white-space: nowrap;
}

.action-btn:hover {
    transform: translateY(-2px);
}

.action-btn.new-game {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
}

.action-btn.new-game:hover {
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.action-btn.mark-btn {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: #fff;
}

.action-btn.mark-btn.active {
    background: linear-gradient(135deg, #1abc9c, #16a085);
}

.action-btn.magnify-btn {
    background: linear-gradient(135deg, #9b59b6, #8e44ad);
    color: #fff;
    cursor: default;
}

.action-btn.magnify-btn.can-use {
    cursor: pointer;
}

.action-btn.magnify-btn.can-use:hover {
    box-shadow: 0 8px 25px rgba(155, 89, 182, 0.4);
}

.action-btn.magnify-btn.active {
    background: linear-gradient(135deg, #00e676, #00c853);
    box-shadow: 0 0 20px rgba(0, 230, 118, 0.4);
}

/* 失败弹窗 - 爆炸效果 */
.cell.exploded {
    background: rgba(255, 0, 0, 0.6) !important;
    animation: explode 0.5s ease;
}

@keyframes explode {
    0% { transform: scale(1); }
    50% { transform: scale(1.3); }
    100% { transform: scale(1); }
}

.cell.exploded::after {
    content: '💥';
    font-size: 18px;
    position: absolute;
}

/* 胜利弹窗 */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-overlay.show {
    display: flex;
}

.modal {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border-radius: 24px;
    padding: 36px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
    max-width: 380px;
    width: 90%;
    animation: modalIn 0.4s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal .trophy {
    font-size: 56px;
    margin-bottom: 12px;
}

.modal h2 {
    font-size: 26px;
    margin-bottom: 6px;
    background: linear-gradient(90deg, #f7971e, #ffd200);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal p {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
    font-size: 14px;
}

.modal .action-btn {
    padding: 10px 36px;
    font-size: 15px;
}

/* 自定义提示弹窗（替代 alert） */
.toast-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    justify-content: center;
    align-items: center;
    z-index: 999;
    cursor: pointer;
}

.toast-overlay.show {
    display: flex;
}

.toast-box {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border-radius: 16px;
    padding: 28px 32px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    max-width: 340px;
    width: 90%;
    animation: modalIn 0.3s ease;
    cursor: default;
}

.toast-box .toast-icon {
    font-size: 36px;
    margin-bottom: 10px;
}

.toast-box .toast-msg {
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    margin-bottom: 18px;
    line-height: 1.5;
}

.toast-box .toast-btn {
    padding: 8px 28px;
    border: none;
    border-radius: 20px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
}

.toast-box .toast-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

/* 标题行：规则按钮 + 标题 */
.header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

.rules-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    font-size: 13px;
    padding: 4px 12px;
    font-family: inherit;
    transition: all 0.2s;
    white-space: nowrap;
}

.rules-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

/* 规则弹窗内容 */
.rules-modal .rules-content {
    text-align: left;
    max-height: 50vh;
    overflow-y: auto;
    margin: 12px 0;
    padding: 0 8px;
}

.rules-modal .rules-content p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 13px;
    line-height: 1.7;
    margin-bottom: 10px;
}

.rules-modal .rules-content strong {
    color: #ffd200;
}

/* 选中格子时，同行/列/宫变亮 */
.cell.related {
    background: rgba(255, 255, 255, 0.08);
}

/* 选中数字时，所有相同数字高亮 */
.cell.highlighted {
    background: rgba(255, 215, 0, 0.12);
}

/* 数字键盘上对应数字高亮 */
.num-btn-wrapper.highlighted {
    background: rgba(255, 215, 0, 0.15);
    border-color: rgba(255, 215, 0, 0.3);
}

/* 长按铲雷：按住空格子时的环形填充进度动画（0.6秒与计时器同步） */
.sudoku-grid .cell.pressing::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(243, 156, 18, 0.4);
    clip-path: circle(0% at 50% 50%);
    animation: pressFill 0.6s linear forwards;
    pointer-events: none;
}

@keyframes pressFill {
    to { clip-path: circle(75% at 50% 50%); }
}

/* 颜色图例 */
.legend {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 3px 12px;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 8px;
}

.legend .lg {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.legend .lg::before {
    content: '';
    width: 9px;
    height: 9px;
    border-radius: 3px;
    flex-shrink: 0;
}

.lg-given::before { background: #e0e0e0; }
.lg-player::before { background: #4caf50; }
.lg-hint::before { background: rgba(255, 0, 0, 0.55); }
.lg-wrong { color: #ef5350; }
.lg-wrong::before { background: transparent; border: 1.5px solid #ef5350; }
.lg-shoveled::before { background: rgba(33, 150, 243, 0.65); }

/* 响应式 */
@media (max-width: 480px) {
    .container {
        padding: 14px;
        border-radius: 14px;
    }
    h1 {
        font-size: 20px;
    }
    .cell {
        font-size: 16px;
    }
    .cell .mark-cell {
        font-size: 7px;
    }
    .cell .marks-compact .mark-num {
        font-size: 6px;
    }
    .num-btn-wrapper .num-label {
        font-size: 17px;
    }
    .diff-btn {
        padding: 5px 12px;
        font-size: 12px;
    }
    .legend {
        font-size: 10px;
        gap: 2px 8px;
    }
    .action-btn {
        font-size: 11px;
        padding: 7px 8px;
        min-width: 55px;
    }
}

/* ===== 站点外壳（在游戏样式之后覆盖） ===== */
:root{--gold:#f7b733;--gold2:#ffd200;--text:#ece9f7;--muted:#a9a3c2;--line:rgba(255,255,255,.1)}
html{scroll-behavior:smooth}
body{display:block;background:radial-gradient(900px 500px at 50% -10%,#2a2450 0,#0f0c29 45%,#08060f 100%) fixed;min-height:100vh;padding:0;color:var(--text)}
.site-header{position:sticky;top:0;z-index:60;background:rgba(10,8,24,.84);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.site-header__inner{max-width:1180px;margin:0 auto;padding:11px 22px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:9px;color:#fff;text-decoration:none;font-weight:800;font-size:17px;white-space:nowrap}
.brand__mark{width:30px;height:30px;display:grid;place-items:center;border-radius:9px;background:linear-gradient(135deg,#f7971e,#ffd200);font-size:16px}
.site-nav{display:flex;gap:3px;margin-left:10px}
.site-nav a{color:var(--muted);text-decoration:none;font-size:14px;padding:7px 11px;border-radius:8px}
.site-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.site-nav a.active{color:#ffd76a;background:rgba(255,210,0,.08)}
.header-cta{margin-left:auto;background:linear-gradient(135deg,#f7971e,#ffd200);color:#241a09;text-decoration:none;font-weight:700;font-size:14px;padding:8px 16px;border-radius:999px;white-space:nowrap}
.hero{padding:36px 22px 8px}
.hero__inner{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) 540px;gap:44px;align-items:start}
.hero__copy{padding-top:30px;position:sticky;top:92px}
.badge{display:inline-block;font-size:11px;letter-spacing:.18em;color:#ffd76a;border:1px solid rgba(255,210,0,.28);background:rgba(255,210,0,.06);padding:5px 10px;border-radius:999px}
.hero h1{font-size:58px;line-height:1.05;margin:18px 0 14px;text-align:left;background:linear-gradient(90deg,#f7971e,#ffd200);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero__lead{font-size:17px;line-height:1.9;color:#c9c2e0;max-width:520px}
.hero__actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:10px;text-decoration:none;font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;font-family:inherit}
.btn--primary{background:linear-gradient(135deg,#f7971e,#ffd200);color:#241a09}
.btn--ghost{border-color:rgba(255,255,255,.18);color:#e9e5f7;background:rgba(255,255,255,.04)}
.hero__stats{display:flex;gap:36px;list-style:none;margin:26px 0 0;padding:0}
.hero__stats b{display:block;font-size:26px;color:#fff}
.hero__stats span{color:var(--muted);font-size:12px}
.hero__note{color:#7f7899;font-size:12px;margin-top:22px;line-height:1.8}
.hero__quick{margin-top:26px;border-top:1px solid var(--line);padding-top:20px;max-width:520px}
.hero__quick h2{font-size:12px;color:#ffd76a;margin:0 0 12px;letter-spacing:.16em;font-weight:700}
.hero__quick ol{list-style:none;padding:0;margin:0;display:grid;gap:11px}
.hero__quick li{display:flex;gap:11px;align-items:flex-start;font-size:13.5px;color:#a9a3c2;line-height:1.7}
.hero__quick li span{flex:0 0 22px;height:22px;border-radius:7px;display:grid;place-items:center;background:rgba(255,210,0,.1);border:1px solid rgba(255,210,0,.25);color:#ffd76a;font-size:11px;font-weight:700}
.hero__quick li b{display:block;color:#fff;font-size:13.5px;margin-bottom:1px}
.chips{display:flex;gap:7px;flex-wrap:wrap;margin-top:15px}
.chips span{font-size:11.5px;color:#cfc8e6;border:1px solid var(--line);background:rgba(255,255,255,.03);padding:4px 9px;border-radius:999px}
.hero__game{min-width:0}
.hero__game .container{max-width:540px;margin:0 auto}
.game-title{text-align:center;font-size:26px;margin-bottom:6px;background:linear-gradient(90deg,#f7971e,#ffd200);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.difficulty-selector{flex-wrap:wrap}
.content{padding:42px 22px 8px}
.content__inner{max-width:900px;margin:0 auto}
.content h2{font-size:26px;margin:36px 0 12px;color:#fff}
.content h3{font-size:18px;color:#ffd76a;margin:22px 0 6px}
.content p,.content li{color:#c3bcd8;font-size:15.5px;line-height:1.95}
.content a{color:#ffd76a}
.content ul,.content ol{padding-left:22px}
.steps{list-style:none;padding:0;display:grid;gap:12px}
.steps li{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.steps b{color:#ffd76a}
.mode-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:18px 0}
.mode{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:12px;padding:14px}
.mode h3{margin:0 0 6px;font-size:16px;color:#fff}
.mode p{margin:0;font-size:13px;line-height:1.7;color:var(--muted)}
details{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:10px 0}
summary{cursor:pointer;color:#fff;font-weight:600}
details p{margin:10px 0 0;color:#b8b1cf}
.ad-slot{margin:26px auto;max-width:970px}
.ad-slot:empty{display:none}
.site-footer{border-top:1px solid var(--line);margin-top:50px;background:rgba(8,6,18,.6)}
.site-footer__inner{max-width:1180px;margin:0 auto;padding:34px 22px 20px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:26px}
.site-footer h4{font-size:13px;color:#fff;margin:0 0 10px}
.site-footer a{display:block;color:var(--muted);text-decoration:none;font-size:13px;padding:3px 0}
.site-footer a:hover{color:#ffd76a}
.site-footer p{color:#7f7899;font-size:13px;line-height:1.8;margin:6px 0 0}
.site-footer__bottom{max-width:1180px;margin:0 auto;padding:14px 22px 22px;border-top:1px solid rgba(255,255,255,.06);color:#6f6888;font-size:12px;line-height:1.8}
.feedback-fab{position:fixed;right:18px;bottom:18px;z-index:70;display:inline-flex;align-items:center;gap:7px;padding:10px 14px;border-radius:999px;background:linear-gradient(135deg,#f7971e,#ffd200);color:#241a09;text-decoration:none;font-weight:700;font-size:13px;box-shadow:0 10px 28px rgba(0,0,0,.4)}
.page{max-width:860px;margin:0 auto;padding:46px 22px 30px}
.page h1{font-size:40px;text-align:left;margin-bottom:10px;background:none;-webkit-text-fill-color:#fff;color:#fff}
.page .page-lead{font-size:16px;color:#b9b2d1;line-height:1.9;margin-bottom:26px}
.page h2{font-size:23px;margin:34px 0 10px;color:#fff}
.page h3{font-size:17px;color:#ffd76a;margin:22px 0 6px}
.page p,.page li{color:#c3bcd8;line-height:1.95;font-size:15.5px}
.page ul,.page ol{padding-left:22px}
.page .card{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:14px 0}
.page .cta{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0}
.crumbs{font-size:13px;color:#7f7899;margin-bottom:14px}
.crumbs a{color:#a9a3c2;text-decoration:none}
.fb-wrap{max-width:860px;margin:0 auto;padding:40px 22px 30px}
.fb-top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.fb-back{color:#a9a3c2;text-decoration:none;font-size:14px}
.fb-lang{display:flex;gap:6px}
.fb-lang button{border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.04);color:#cfc8e6;border-radius:8px;padding:6px 12px;cursor:pointer;font-size:13px}
.fb-lang button[aria-pressed="true"]{border-color:#ffd200;color:#ffd76a}
.fb-wrap h1{font-size:38px;margin:6px 0 8px;background:none;-webkit-text-fill-color:#fff;color:#fff;text-align:left}
.fb-lead{color:#b9b2d1;line-height:1.9;margin-bottom:18px}
.fb-note{background:rgba(255,210,0,.07);border:1px solid rgba(255,210,0,.22);color:#ffd76a;border-radius:12px;padding:12px 15px;font-size:14px;line-height:1.8;margin:16px 0 22px}
.fb-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fb-card{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:14px;padding:18px;margin:0 0 14px}
.fb-card h2{font-size:17px;color:#fff;margin:0 0 6px}
.fb-card p{color:#a9a3c2;font-size:13.5px;line-height:1.8;margin:0 0 12px}
.fb-mail{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;background:rgba(0,0,0,.22);border:1px solid rgba(255,255,255,.08);border-radius:10px;padding:10px 12px;margin:8px 0}
.fb-mail code{font-size:13.5px;color:#fff}
.fb-btn{display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border-radius:9px;background:linear-gradient(135deg,#f7971e,#ffd200);color:#241a09;text-decoration:none;font-weight:700;font-size:13px;border:0;cursor:pointer;font-family:inherit}
.fb-btn--ghost{background:rgba(255,255,255,.06);color:#e9e5f7;border:1px solid rgba(255,255,255,.16)}
.fb-textarea{width:100%;min-height:150px;border-radius:12px;border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.25);color:#ece9f7;padding:13px 14px;font:14px/1.8 inherit;resize:vertical;box-sizing:border-box}
.fb-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.fb-issues a{color:#ffd76a}
html[data-lang="zh"] [data-lang="en"],html[data-lang="en"] [data-lang="zh"]{display:none!important}
@media (max-width:980px){
 .hero__inner{grid-template-columns:1fr;gap:18px}
 .hero__copy{position:static;padding-top:0;text-align:center;margin:0 auto;max-width:680px}
 .hero h1{font-size:46px;text-align:center}
 .hero__lead{margin:0 auto}
 .hero__actions,.hero__stats{justify-content:center}
 .site-nav{display:none}
 .mode-grid{grid-template-columns:repeat(2,1fr)}
 .site-footer__inner{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
 .hero{padding:24px 12px 0}
 .hero h1{font-size:38px}
 .hero__game .container{max-width:100%;padding:14px;border-radius:14px}
 .content{padding:26px 16px 0}
 .content h2{font-size:22px}
 .page{padding:30px 16px 20px}
 .page h1,.fb-wrap h1{font-size:30px}
 .fb-wrap{padding:26px 16px 20px}
 .fb-grid{grid-template-columns:1fr}
 .site-footer__inner{grid-template-columns:1fr;gap:18px}
 .feedback-fab{right:10px;bottom:10px;padding:8px 11px;font-size:12px}
}