/* ============================================================
   WordQuant 专用样式
   完全复用 DP 主题变量（dp-themes.css）
   变量：--bg, --bg-gradient, --nav-bg, --card-bg,
        --text, --text-primary, --text-secondary, --text-muted,
        --border, --accent-blue/purple/pink/orange/yellow/
        green/teal/red/gold, --glass-bg, --glass-border
   字体：'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif
   设计目标：与 Daily Practice / Oral Coach 对齐
   ============================================================ */

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-gradient);
    color: var(--text);
    min-height: 100vh;
    overflow-x: clip;
    -webkit-tap-highlight-color: transparent;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.5;
}

/* ===== 图标 ===== */
.wq-icon { width: 20px; height: 20px; stroke: currentColor; fill: none; vertical-align: middle; }
.wq-icon-sm { width: 16px; height: 16px; }
.wq-icon-lg { width: 24px; height: 24px; }

/* ===== 顶部导航栏（对齐 DP .dp-nav / SC .sc-nav） ===== */
.wq-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    min-height: 60px;
    background: var(--nav-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.wq-nav-brand {
    display: flex;
    align-items: baseline;
    gap: 6px;
    flex-shrink: 0;
}
.wq-nav-logo {
    display: inline-flex;
    align-items: baseline;
    font-family: "Pacifico", cursive;
    font-size: 22px;
    text-decoration: none;
    background: linear-gradient(135deg, #00C9A7 0%, #6c5ce7 50%, #a855f7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
    transition: filter 0.2s ease;
}
.wq-nav-logo:hover { filter: brightness(1.15); }
.wq-logo-zh {
    font-family: "ZCOOL KuaiLe", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1;
    align-self: baseline;
    color: var(--text-muted);
}
.wq-nav-user {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.wq-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 36px;
    padding: 0 12px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    font-family: Inter, sans-serif;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-secondary);
    flex-shrink: 0;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}
.wq-nav-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: currentColor;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
}
.wq-nav-btn:hover::before { opacity: 0.08; }
.wq-nav-btn:active { transform: scale(0.94); }
.wq-nav-btn svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
}
.wq-nav-theme { color: var(--accent-blue); }
.wq-nav-theme:hover { border-color: var(--accent-blue); }
.wq-nav-coin { color: var(--accent-orange); }
.wq-nav-coin:hover { border-color: var(--accent-orange); }
.wq-nav-btn-num {
    font-variant-numeric: tabular-nums;
    min-width: 14px;
    text-align: center;
}
.wq-nav-quest { color: var(--accent-purple); }
.wq-nav-quest:hover { border-color: var(--accent-purple); }
.wq-nav-logout { color: var(--text-muted); }
.wq-nav-logout:hover { border-color: var(--accent-red); color: var(--accent-red); }
.wq-btn-ghost {
    display: inline-flex; align-items: center; gap: 6px;
    height: 36px; padding: 0 16px; border-radius: 10px;
    font-size: 13px; font-weight: 600; font-family: Inter, sans-serif;
    cursor: pointer; transition: all 0.2s ease;
    border: 1px solid var(--border); background: transparent;
    color: var(--text-secondary); text-decoration: none;
}
.wq-btn-ghost:hover { border-color: var(--accent-blue); color: var(--accent-blue); }
.wq-nav-login-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-secondary);
    text-decoration: none;
    border: 1px solid var(--border);
    background: var(--card-bg);
    transition: all 0.2s ease;
    white-space: nowrap;
    min-height: 36px;
}
.wq-nav-login-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
}
.wq-nav-register-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    box-shadow: 0 2px 8px rgba(108, 92, 231, 0.25);
    transition: all 0.2s ease;
    white-space: nowrap;
    min-height: 36px;
}
.wq-nav-register-btn:hover {
    filter: brightness(1.08);
    box-shadow: 0 4px 12px rgba(108, 92, 231, 0.35);
}
.wq-nav-coins {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent-orange);
    background: rgba(255, 165, 2, 0.12);
    text-decoration: none;
    white-space: nowrap;
}
.wq-nav-coins:hover { background: rgba(255, 165, 2, 0.2); }
.wq-nav-coins svg { width: 16px; height: 16px; }

.wq-quests-trigger {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 36px;
    padding: 7px 12px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: all .2s ease;
}
.wq-quests-trigger:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
}
.wq-quests-trigger.has-pending::after {
    content: "";
    position: absolute;
    top: 4px;
    right: 4px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-red);
    box-shadow: 0 0 0 2px var(--nav-bg);
}

/* ===== 主容器 ===== */
.wq-main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px 20px 60px;
    min-height: calc(100vh - 60px);
}
/* 确保所有内容在 sticky 导航栏下方可见 */
.wq-main > * { scroll-margin-top: 80px; }
.wq-main-narrow { max-width: 760px; }
.wq-home-main { max-width: 640px; }

/* ===== 页面标题 ===== */
.wq-page-title {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -0.4px;
    margin-bottom: 6px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.wq-page-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 28px;
}
.wq-page-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 18px;
    padding: 8px 12px;
    border-radius: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    background: var(--card-bg);
    border: 1px solid var(--border);
    font-size: 13px;
    font-weight: 700;
    transition: all 0.2s ease;
}
.wq-page-back:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
}

/* ===== 卡片 ===== */
.wq-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all 0.2s ease;
}
.wq-card + .wq-card { margin-top: 16px; }

/* ===== 首页模式卡片网格 ===== */
.wq-mode-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}
.wq-mode-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 22px 18px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-decoration: none;
    color: var(--text);
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}
.wq-mode-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-blue);
    box-shadow: 0 8px 24px rgba(108, 92, 231, 0.18);
}
.wq-mode-card:active { transform: scale(0.99); }
.wq-mode-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    background: rgba(108, 92, 231, 0.16);
    color: var(--accent-purple);
}
.wq-mode-icon.blue { background: rgba(75, 123, 229, 0.16); color: var(--accent-blue); }
.wq-mode-icon.teal { background: rgba(20, 184, 166, 0.16); color: var(--accent-teal); }
.wq-mode-icon.green { background: rgba(34, 197, 94, 0.16); color: var(--accent-green); }
.wq-mode-icon.orange { background: rgba(255, 165, 2, 0.16); color: var(--accent-orange); }
.wq-mode-title {
    font-size: 17px;
    font-weight: 800;
    margin-bottom: 6px;
    color: var(--text-primary);
}
.wq-mode-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.55;
    margin-bottom: 14px;
    flex: 1;
}
.wq-mode-go {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 700;
    color: var(--accent-blue);
}
.wq-mode-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, var(--accent-red), var(--accent-orange));
}

/* ===== 区块标题 ===== */
.wq-section-title {
    font-size: 16px;
    font-weight: 800;
    margin-bottom: 14px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ===== 按钮 ===== */
.wq-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: none;
    border-radius: 14px;
    padding: 13px 22px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    line-height: 1;
}
.wq-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.wq-btn-primary {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    color: #fff;
    box-shadow: 0 4px 14px rgba(108, 92, 231, 0.28);
}
.wq-btn-primary:hover:not(:disabled) {
    filter: brightness(1.08);
    box-shadow: 0 6px 18px rgba(108, 92, 231, 0.38);
}
.wq-btn-primary:active:not(:disabled) { transform: scale(0.97); }
.wq-btn-secondary {
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text);
}
.wq-btn-secondary:hover:not(:disabled) {
    border-color: var(--accent-blue);
    color: var(--text-primary);
}
.wq-btn-secondary:active:not(:disabled) { transform: scale(0.97); }
.wq-btn-block { width: 100%; }
.wq-btn-lg { padding: 16px 28px; font-size: 16px; }

/* ===== 进度条 ===== */
.wq-progress {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 18px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 16px;
}
.wq-progress-part {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}
.wq-progress-part .wq-progress-label {
    color: var(--text-muted);
    font-weight: 600;
    margin-right: 6px;
}
.wq-progress-track {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    overflow: hidden;
}
.wq-progress-fill {
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    transition: width 0.4s ease;
}

/* ===== 单词展示 ===== */
.wq-word-display {
    text-align: center;
    padding: 20px 0;
    overflow: visible;
}
.wq-word-text {
    font-size: clamp(22px, 7vw, 36px);
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: normal;
    margin-bottom: 8px;
    word-break: break-word;
    overflow-wrap: break-word;
    white-space: normal;
    max-width: 100%;
    overflow: visible;
    box-sizing: border-box;
    line-height: 1.2;
}
.wq-word-phonetic {
    font-size: 16px;
    color: var(--text-muted);
    font-family: 'Inter', monospace;
    margin-bottom: 16px;
}
.wq-audio-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--accent-blue);
    cursor: pointer;
    transition: all 0.2s ease;
}
.wq-audio-btn:hover {
    transform: scale(1.08);
    border-color: var(--accent-blue);
}
.wq-audio-btn:active { transform: scale(0.95); }

/* ===== 拼写输入 ===== */
.wq-spell-input-wrap {
    margin: 20px 0;
}
.wq-spell-input {
    width: 100%;
    padding: 16px 18px;
    border-radius: 14px;
    border: 2px solid var(--border);
    background: var(--card-bg);
    color: var(--text-primary);
    font-family: 'Inter', monospace;
    font-size: 22px;
    font-weight: 700;
    text-align: center;
    letter-spacing: 2px;
    outline: none;
    transition: all 0.2s ease;
}
.wq-spell-input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(75, 123, 229, 0.15);
}
.wq-spell-input.correct {
    border-color: var(--accent-green);
    background: rgba(34, 197, 94, 0.08);
}
.wq-spell-input.wrong {
    border-color: var(--accent-red);
    background: rgba(239, 68, 68, 0.08);
}
.wq-syllable-hints {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 12px;
    flex-wrap: wrap;
}
.wq-syllable-box {
    padding: 8px 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    font-family: 'Inter', monospace;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    min-width: 40px;
    text-align: center;
}
.wq-syllable-box.error {
    border-color: var(--accent-red);
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-red);
}

/* ===== 释义选择题 ===== */
.wq-quiz-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 16px;
}
.wq-quiz-option {
    padding: 14px 16px;
    border-radius: 14px;
    border: 2px solid var(--border);
    background: var(--card-bg);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
    line-height: 1.55;
}
.wq-quiz-option:hover {
    border-color: var(--accent-blue);
    transform: translateX(2px);
}
.wq-quiz-option.selected {
    border-color: var(--accent-blue);
    background: rgba(75, 123, 229, 0.08);
}
.wq-quiz-option.correct {
    border-color: var(--accent-green);
    background: rgba(34, 197, 94, 0.1);
    color: var(--accent-green);
}
.wq-quiz-option.wrong {
    border-color: var(--accent-red);
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-red);
}
.wq-quiz-option:disabled { cursor: default; }

/* ===== 评级按钮 ===== */
.wq-rating-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-top: 20px;
}
.wq-rating-btn {
    padding: 12px 8px;
    border-radius: 12px;
    border: 2px solid var(--border);
    background: var(--card-bg);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 14px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}
.wq-rating-btn:hover { transform: translateY(-2px); }
.wq-rating-btn.again { border-color: var(--accent-red); color: var(--accent-red); }
.wq-rating-btn.again:hover { background: rgba(239, 68, 68, 0.1); }
.wq-rating-btn.hard { border-color: var(--accent-orange); color: var(--accent-orange); }
.wq-rating-btn.hard:hover { background: rgba(255, 165, 2, 0.1); }
.wq-rating-btn.good { border-color: var(--accent-blue); color: var(--accent-blue); }
.wq-rating-btn.good:hover { background: rgba(75, 123, 229, 0.1); }
.wq-rating-btn.easy { border-color: var(--accent-green); color: var(--accent-green); }
.wq-rating-btn.easy:hover { background: rgba(34, 197, 94, 0.1); }

/* ===== 统计看板 ===== */
.wq-stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}
.wq-stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 18px;
    text-align: center;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.wq-stat-value {
    font-size: 32px;
    font-weight: 900;
    margin-bottom: 4px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.wq-stat-value.green {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.wq-stat-value.red {
    background: linear-gradient(135deg, var(--accent-red), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.wq-stat-label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
}

/* ===== 学习日历 ===== */
.wq-calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
}
.wq-cal-head {
    text-align: center;
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 700;
    padding: 3px 0;
}
.wq-cal-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 12px;
    color: var(--text-muted);
    background: transparent;
}
.wq-cal-day.empty { visibility: hidden; }
.wq-cal-day.done {
    background: rgba(34, 197, 94, 0.18);
    color: var(--accent-green);
    font-weight: 800;
}
.wq-cal-day.today {
    outline: 2px solid var(--accent-blue);
    color: var(--text-primary);
    font-weight: 900;
}

/* ===== 任务弹窗 ===== */
.wq-quests-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;
    background: rgba(0,0,0,.45);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.wq-quests-overlay[hidden] { display: none; }
.wq-quests-modal {
    width: min(480px, 100%);
    max-height: min(720px, 88vh);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: 22px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    box-shadow: 0 24px 80px rgba(0,0,0,.30);
}
.wq-quests-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 18px 12px;
    border-bottom: 1px solid var(--border);
}
.wq-quests-title {
    flex: 1;
    margin: 0;
    font-size: 18px;
    font-weight: 900;
    color: var(--text-primary);
}
.wq-quests-close {
    width: 32px;
    height: 32px;
    border: 0;
    border-radius: 10px;
    background: var(--bg);
    color: var(--text-secondary);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
}
.wq-quests-body { padding: 14px; overflow-y: auto; }
.wq-quests-footer {
    padding: 12px 18px 16px;
    color: var(--text-muted);
    font-size: 12px;
    border-top: 1px solid var(--border);
}
.wq-quest-card {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
    align-items: center;
    padding: 13px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--bg);
    margin-bottom: 10px;
}
.wq-quest-card.is-claimed { opacity: .72; }
.wq-quest-name { font-size: 14px; font-weight: 900; color: var(--text-primary); margin-bottom: 4px; }
.wq-quest-desc { font-size: 12px; color: var(--text-muted); line-height: 1.45; margin-bottom: 8px; }
.wq-quest-bar { height: 6px; border-radius: 999px; background: var(--border); overflow: hidden; margin-bottom: 6px; }
.wq-quest-bar-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple)); }
.wq-quest-progress-text { font-size: 12px; color: var(--text-muted); }
.wq-quest-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 74px;
    min-height: 34px;
    padding: 7px 10px;
    border-radius: 11px;
    border: 1px solid var(--border);
    text-decoration: none;
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
}
.wq-quest-btn-start { background: var(--card-bg); color: var(--text-secondary); }
.wq-quest-btn-claim {
    border-color: transparent;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    color: #fff;
}
.wq-quest-btn-claimed { background: var(--bg); color: var(--text-muted); cursor: default; }

/* ===== 浮动提示 ===== */
.wq-float-host {
    position: fixed;
    top: 76px;
    right: 18px;
    z-index: 1100;
    pointer-events: none;
}
.wq-float {
    margin-bottom: 8px;
    padding: 9px 13px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
    color: #fff;
    font-size: 13px;
    font-weight: 900;
    opacity: 0;
    transform: translateY(-8px);
    transition: all .22s ease;
    box-shadow: 0 12px 34px rgba(0,0,0,.22);
}
.wq-float.error { background: linear-gradient(135deg, #ff6b6b, #ff4757); }
.wq-float.show { opacity: 1; transform: translateY(0); }
.wq-float.out { opacity: 0; transform: translateY(-12px); }

/* ===== 跨项目引导 ===== */
.wq-cross-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin: 0 0 20px;
}
.wq-cross-promo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 16px;
    background: linear-gradient(135deg, rgba(168,85,247,0.08), rgba(99,102,241,0.08));
    border: 1px solid rgba(168,85,247,0.20);
    border-radius: 12px;
    color: var(--accent-purple, #a855f7);
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: all .2s ease;
    cursor: pointer;
}
.wq-cross-promo:hover {
    border-color: rgba(168,85,247,0.36);
    transform: translateY(-1px);
}
.wq-cross-promo:active { transform: scale(.98); }
.wq-cross-promo span { flex: 1; text-align: center; line-height: 1.45; }
.wq-cross-icon { width: 20px; height: 20px; flex: 0 0 auto; }
.wq-cross-arrow { width: 16px; height: 16px; flex: 0 0 auto; }

/* ===== 空状态 ===== */
.wq-empty-state {
    text-align: center;
    padding: 32px 16px;
    color: var(--text-muted);
    font-size: 14px;
}

/* ===== 工具类 ===== */
.wq-row { display: flex; align-items: center; gap: 10px; }
.wq-row-between { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.wq-mt-12 { margin-top: 12px; }
.wq-mt-16 { margin-top: 16px; }
.wq-mt-20 { margin-top: 20px; }
.wq-mb-12 { margin-bottom: 12px; }
.wq-mb-16 { margin-bottom: 16px; }
.wq-hidden { display: none !important; }
.wq-text-muted { color: var(--text-muted); }
.wq-text-sm { font-size: 13px; }
.wq-text-center { text-align: center; }

/* ============================================================
   响应式：平板 768px
   ============================================================ */
@media (max-width: 768px) {
    .wq-nav { padding: 10px 14px; gap: 8px; }
    .wq-nav-logo { font-size: 19px; }
    .wq-logo-zh { font-size: 13px; }
    .wq-main { padding: 20px 14px 48px; }
    .wq-mode-grid { grid-template-columns: 1fr; gap: 14px; }
    .wq-stat-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   响应式：手机 480px
   ============================================================ */
@media (max-width: 480px) {
    /* 导航栏按钮：移动端全部变成 34px 纯图标方块 */
    .wq-nav-btn {
        width: 34px;
        height: 34px;
        padding: 0;
        gap: 0;
        border-radius: 8px;
        justify-content: center;
    }
    .wq-nav-btn-label { display: none; }
    .wq-nav-btn svg { width: 17px; height: 17px; }
    .wq-nav-coin {
        width: auto;
        min-width: 34px;
        padding: 0 7px;
        gap: 3px;
    }
    .wq-nav-coin svg { width: 15px; height: 15px; }
    .wq-nav-btn-num { font-size: 12px; }

    .wq-nav { padding: 0 8px; min-height: 50px; height: 50px; gap: 4px; }
    .wq-nav-logo { font-size: 16px; }
    .wq-logo-zh { font-size: 13px; }
    .wq-nav-user { gap: 3px; }
    .wq-nav-login-btn, .wq-nav-register-btn { padding: 6px 10px; font-size: 12px; }
    .wq-nav-register-btn span:last-child { display: none; }
    .wq-quests-trigger span { display: none; }
    .wq-quests-trigger { width: 34px; padding: 7px; }

    /* 导航栏按钮：移动端全部变成 34px 纯图标方块 */
    .wq-icon-btn {
        width: 34px !important;
        height: 34px !important;
        min-width: 34px !important;
        padding: 0 !important;
        gap: 0 !important;
        border-radius: 8px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
    .wq-icon-btn span.wq-btn-label { display: none; }
    .wq-icon-btn svg { width: 17px; height: 17px; }
    .wq-coin-btn { width: auto !important; min-width: 34px !important; padding: 0 6px !important; gap: 2px !important; }
    .wq-coin-btn svg { width: 14px; height: 14px; }
    .wq-quest-btn { min-width: 34px !important; }
    .wq-theme-pill {
        width: 34px; height: 34px; padding: 0;
        border-radius: 8px;
        display: inline-flex; align-items: center; justify-content: center;
    }
    .wq-theme-pill span { display: none; }
    .wq-theme-pill svg { width: 17px; height: 17px; }

    .wq-main { padding: 16px 12px 40px; }
    .wq-page-title { font-size: 22px; }
    .wq-page-subtitle { font-size: 13px; margin-bottom: 20px; }

    .wq-card { padding: 16px; border-radius: 14px; }
    .wq-mode-card { padding: 18px 16px; border-radius: 16px; }
    .wq-mode-icon { width: 42px; height: 42px; }
    .wq-mode-title { font-size: 15px; }

    .wq-word-text { font-size: clamp(22px, 7vw, 30px); }
    .wq-spell-input { font-size: 18px; padding: 14px 16px; }

    .wq-stat-value { font-size: 26px; }
    .wq-stat-card { padding: 14px; }

    .wq-btn { padding: 12px 18px; font-size: 14px; }
    .wq-btn-lg { padding: 14px 22px; font-size: 15px; }

    .wq-rating-row { grid-template-columns: repeat(2, 1fr); }
    .wq-quest-card { grid-template-columns: 1fr; }
    .wq-quest-btn { width: 100%; }
    .wq-cross-grid { grid-template-columns: 1fr; }
}


/* ===== 主题切换按钮（与 DP/SC 一致） ===== */
.wq-theme-pill {
    -webkit-appearance: none; appearance: none;
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 14px; font-size: 13px; font-weight: 600;
    font-family: inherit;
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 20px; cursor: pointer; color: var(--text-muted);
    transition: all 0.2s ease; white-space: nowrap;
    -webkit-tap-highlight-color: transparent;
    line-height: 1; text-align: center;
    backdrop-filter: blur(8px);
}
.wq-theme-pill svg { flex-shrink: 0; stroke: currentColor; fill: none; stroke-width: 2; }
.wq-theme-pill:active { transform: scale(0.95); opacity: 0.85; }
[data-theme="eye"] .wq-theme-pill { color: var(--accent-green, #4ade80); }
@media (max-width: 480px) {
    .wq-theme-pill { padding: 7px 10px; }
    .wq-theme-pill span { display: none; }
}

/* ===== onboarding 返回键 ===== */
.wq-ob-close {
    position: absolute; top: 20px; right: 20px;
    width: 36px; height: 36px; border-radius: 50%;
    border: 1px solid var(--border); background: var(--card-bg);
    color: var(--text-muted); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.2s ease; z-index: 10;
}
.wq-ob-close:hover { color: var(--accent-red); border-color: var(--accent-red); }
.wq-ob-close svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2; }


/* ============================================================
   Phase E: 连击 + 巧币 + 成就 样式 (v202607100800)
   ============================================================ */

/* ===== 连击徽章 ===== */
.pr-combo-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 800;
    font-family: 'Inter', sans-serif;
    color: #ff6b35;
    background: rgba(255, 107, 53, 0.12);
    border: 1px solid rgba(255, 107, 53, 0.3);
    white-space: nowrap;
    transition: all 0.2s ease;
}
.pr-combo-badge:hover {
    background: rgba(255, 107, 53, 0.2);
    transform: scale(1.05);
}
.pr-combo-flame {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    flex-shrink: 0;
}
.pr-combo-num {
    line-height: 1;
    display: inline-block;
}
.pr-combo-pop {
    animation: prComboPop 0.4s ease;
}
@keyframes prComboPop {
    0% { transform: scale(1); }
    50% { transform: scale(1.5); color: #ff9500; }
    100% { transform: scale(1); }
}

/* ===== 巧币徽章 ===== */
.pr-coin-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    font-family: 'Inter', sans-serif;
    color: #ffa502;
    background: rgba(255, 165, 2, 0.12);
    border: 1px solid rgba(255, 165, 2, 0.25);
    white-space: nowrap;
    transition: all 0.2s ease;
}
.pr-coin-badge:hover {
    background: rgba(255, 165, 2, 0.2);
}
.pr-coin-badge svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* ===== 巧币浮动提示 ===== */
.pr-coin-tip {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.5);
    padding: 12px 24px;
    border-radius: 16px;
    font-size: 20px;
    font-weight: 800;
    font-family: 'Inter', sans-serif;
    color: #fff;
    background: linear-gradient(135deg, #ffa502, #ff6348);
    box-shadow: 0 8px 32px rgba(255, 165, 2, 0.4);
    z-index: 10000;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
    white-space: nowrap;
}
.pr-coin-tip-show {
    opacity: 1;
    transform: translate(-50%, -80px) scale(1);
}
.pr-coin-tip-fade {
    opacity: 0;
    transform: translate(-50%, -140px) scale(0.9);
    transition: all 0.6s ease;
}

/* ===== 成就墙 ===== */
.wq-ach-count {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    margin-left: 8px;
}
.wq-achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
    margin-top: 12px;
}
.wq-ach-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 6px;
    padding: 16px 10px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}
.wq-ach-item.unlocked {
    border-color: rgba(255, 165, 2, 0.4);
    background: linear-gradient(135deg, rgba(255, 165, 2, 0.06), rgba(132, 94, 194, 0.04));
}
/* achievement top line removed */
.wq-ach-item.locked {
    opacity: 0.5;
    filter: grayscale(0.6);
}
.wq-ach-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 2px solid var(--border);
}
.wq-ach-item.unlocked .wq-ach-icon {
    border-color: #ffa502;
    background: rgba(255, 165, 2, 0.1);
    color: #ffa502;
    box-shadow: 0 0 16px rgba(255, 165, 2, 0.2);
}
.wq-ach-item.locked .wq-ach-icon {
    color: var(--text-muted);
}
.wq-ach-icon svg {
    width: 24px;
    height: 24px;
}
.wq-ach-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    font-family: "ZCOOL KuaiLe", "PingFang SC", sans-serif;
}
.wq-ach-item.locked .wq-ach-name {
    color: var(--text-muted);
}
.wq-ach-desc {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.4;
}
.wq-ach-date {
    font-size: 10px;
    color: var(--accent-green);
    font-weight: 600;
}
.wq-achievement-loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 14px;
}

/* ===== 响应式 ===== */
@media (max-width: 480px) {
    .pr-combo-badge { padding: 3px 8px; font-size: 12px; }
    .pr-combo-flame { width: 14px; height: 14px; }
    .pr-coin-badge { padding: 3px 8px; font-size: 12px; }
    .pr-coin-badge svg { width: 14px; height: 14px; }
    .wq-achievement-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 8px; }
    .wq-ach-item { padding: 12px 8px; }
    .wq-ach-icon { width: 40px; height: 40px; }
    .wq-ach-icon svg { width: 20px; height: 20px; }
    .pr-coin-tip { font-size: 16px; padding: 10px 20px; }
}


/* ============================================================
   WordQuant 视觉体验升级 v202607101000
   追加于 wq-main.css 末尾，不修改原有样式
   设计：玻璃拟态 + 渐变网格 + 微交互弹簧 + 进度条发光
        + 评分动效 + 巧币连击特效 + 成就庆祝 + 排版升级
        + 移动端优化 + 主题平滑切换
   性能：仅用 transform / opacity，GPU 加速，低端机友好
   ============================================================ */

/* ============================================================
   1. 玻璃拟态 Glassmorphism
   ============================================================ */
[data-theme="dark"] .wq-card,
[data-theme="dark"] .wq-mode-card,
[data-theme="dark"] .wq-stat-card,
[data-theme="dark"] .wq-quest-card,
[data-theme="dark"] .wq-quests-modal {
    background: rgba(255, 255, 255, 0.04);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    backdrop-filter: blur(20px) saturate(160%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.10);
}
[data-theme="light"] .wq-card,
[data-theme="light"] .wq-mode-card,
[data-theme="light"] .wq-stat-card,
[data-theme="light"] .wq-quest-card,
[data-theme="light"] .wq-quests-modal {
    background: rgba(255, 255, 255, 0.60);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    backdrop-filter: blur(20px) saturate(160%);
    border: 1px solid rgba(255, 255, 255, 0.40);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.55);
}
[data-theme="eye"] .wq-card,
[data-theme="eye"] .wq-mode-card,
[data-theme="eye"] .wq-stat-card,
[data-theme="eye"] .wq-quest-card,
[data-theme="eye"] .wq-quests-modal {
    background: rgba(238, 230, 208, 0.50);
    -webkit-backdrop-filter: blur(20px) saturate(140%);
    backdrop-filter: blur(20px) saturate(140%);
    border: 1px solid rgba(180, 165, 130, 0.28);
    box-shadow: 0 8px 32px rgba(91, 70, 54, 0.10), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
/* 玻璃卡片 hover 微浮 */
.wq-card {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
}

/* ============================================================
   2. 渐变网格背景
   ============================================================ */
[data-theme="dark"] body {
    background:
        radial-gradient(circle at 15% 18%, rgba(108, 92, 231, 0.20) 0%, transparent 42%),
        radial-gradient(circle at 85% 12%, rgba(75, 123, 229, 0.18) 0%, transparent 44%),
        radial-gradient(circle at 50% 92%, rgba(168, 85, 247, 0.14) 0%, transparent 46%),
        repeating-linear-gradient(0deg, transparent 0, transparent 39px, rgba(255, 255, 255, 0.016) 39px, rgba(255, 255, 255, 0.016) 40px),
        repeating-linear-gradient(90deg, transparent 0, transparent 39px, rgba(255, 255, 255, 0.016) 39px, rgba(255, 255, 255, 0.016) 40px),
        linear-gradient(160deg, #0c0c18 0%, #15102a 40%, #0c1824 100%);
    background-attachment: fixed;
}
[data-theme="light"] body {
    background:
        radial-gradient(circle at 15% 18%, rgba(108, 92, 231, 0.12) 0%, transparent 42%),
        radial-gradient(circle at 85% 12%, rgba(75, 123, 229, 0.12) 0%, transparent 44%),
        radial-gradient(circle at 50% 92%, rgba(168, 85, 247, 0.10) 0%, transparent 46%),
        repeating-linear-gradient(0deg, transparent 0, transparent 39px, rgba(20, 20, 50, 0.020) 39px, rgba(20, 20, 50, 0.020) 40px),
        repeating-linear-gradient(90deg, transparent 0, transparent 39px, rgba(20, 20, 50, 0.020) 39px, rgba(20, 20, 50, 0.020) 40px),
        linear-gradient(160deg, #f5f5ff 0%, #eeeeff 40%, #f0f0ff 100%);
    background-attachment: fixed;
}
[data-theme="eye"] body {
    background:
        radial-gradient(circle at 15% 18%, rgba(200, 170, 110, 0.14) 0%, transparent 42%),
        radial-gradient(circle at 85% 12%, rgba(123, 123, 197, 0.10) 0%, transparent 44%),
        repeating-linear-gradient(0deg, transparent 0, transparent 39px, rgba(91, 70, 54, 0.022) 39px, rgba(91, 70, 54, 0.022) 40px),
        repeating-linear-gradient(90deg, transparent 0, transparent 39px, rgba(91, 70, 54, 0.022) 39px, rgba(91, 70, 54, 0.022) 40px),
        linear-gradient(160deg, #f8f3e6 0%, #f2ecda 40%, #f5f0e0 100%);
    background-attachment: fixed;
}
/* 移动端关闭 fixed 以保证滚动流畅 */
@media (max-width: 768px) {
    body { background-attachment: scroll; }
}

/* ============================================================
   3. 微交互动画
   ============================================================ */
/* 弹簧过渡：按钮 / 选项 / 卡片入口 */
.wq-btn,
.wq-rating-btn,
.wq-quiz-option,
.wq-mode-card,
.wq-quest-btn,
.wq-audio-btn,
.wq-theme-pill,
.wq-nav-login-btn,
.wq-nav-register-btn,
.wq-quests-trigger,
.wq-page-back,
.wq-cross-promo {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.3s ease, border-color 0.25s ease,
                background-color 0.3s ease, color 0.3s ease, filter 0.2s ease;
}

/* 卡片入场关键帧 */
@keyframes cardEntrance {
    from { opacity: 0; transform: translateY(20px) scale(0.95); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}
/* CSS 自动入场：任意 .wq-card 由 display:none 切到 block 时触发（覆盖所有页面） */
.wq-card[style*="display: block"],
.wq-card[style*="display:block"] {
    animation: cardEntrance 0.4s ease-out;
}
/* practice.html JS 显式调用的入场类（更高优先级，保证弹簧回弹可控） */
.wq-card.wq-card-enter {
    animation: cardEntrance 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* 按钮点击波纹 ripple（::after 实现） */
.wq-btn,
.wq-rating-btn,
.wq-quiz-option,
.wq-quest-btn,
.wq-mode-card {
    position: relative;
    overflow: hidden;
}
.wq-btn::after,
.wq-rating-btn::after,
.wq-quiz-option::after,
.wq-quest-btn::after,
.wq-mode-card::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    pointer-events: none;
    transition: width 0.45s ease-out, height 0.45s ease-out, opacity 0.45s ease-out;
}
[data-theme="dark"] .wq-btn::after,
[data-theme="dark"] .wq-rating-btn::after,
[data-theme="dark"] .wq-quiz-option::after,
[data-theme="dark"] .wq-quest-btn::after,
[data-theme="dark"] .wq-mode-card::after { background: rgba(255, 255, 255, 0.28); }
[data-theme="light"] .wq-btn::after,
[data-theme="light"] .wq-rating-btn::after,
[data-theme="light"] .wq-quiz-option::after,
[data-theme="light"] .wq-quest-btn::after,
[data-theme="light"] .wq-mode-card::after { background: rgba(20, 20, 50, 0.10); }
[data-theme="eye"] .wq-btn::after,
[data-theme="eye"] .wq-rating-btn::after,
[data-theme="eye"] .wq-quiz-option::after,
[data-theme="eye"] .wq-quest-btn::after,
[data-theme="eye"] .wq-mode-card::after { background: rgba(91, 70, 54, 0.12); }
.wq-btn:active::after,
.wq-rating-btn:active::after,
.wq-quiz-option:active::after,
.wq-quest-btn:active::after,
.wq-mode-card:active::after {
    width: 280px; height: 280px; opacity: 0.35;
}

/* ============================================================
   4. 进度条升级
   ============================================================ */
.wq-progress-track {
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.18);
    overflow: hidden;
}
.wq-progress-fill {
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple), var(--accent-pink), var(--accent-blue));
    background-size: 300% 100%;
    box-shadow: 0 0 10px var(--accent-purple), 0 0 4px rgba(168, 85, 247, 0.5);
    animation: wqShimmer 2.5s linear infinite;
    transition: width 0.4s ease;
}
@keyframes wqShimmer {
    0%   { background-position: 300% 0; }
    100% { background-position: 0% 0; }
}

/* 步骤指示器升级（覆盖 practice.html 内联样式，用 body 前缀提升优先级） */
body .pr-step-bar {
    background: rgba(255, 255, 255, 0.04);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.10);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}
[data-theme="light"] body .pr-step-bar {
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.45);
}
[data-theme="eye"] body .pr-step-bar {
    background: rgba(238, 230, 208, 0.45);
    border: 1px solid rgba(180, 165, 130, 0.25);
}
body .pr-step-item.active .pr-step-dot {
    border-color: var(--accent-purple);
    background: rgba(168, 85, 247, 0.18);
    color: var(--accent-purple);
    transform: scale(1.12);
    box-shadow: 0 0 0 4px rgba(168, 85, 247, 0.12), 0 0 16px rgba(168, 85, 247, 0.45);
    animation: wqStepPulse 1.8s ease-in-out infinite;
}
@keyframes wqStepPulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(168, 85, 247, 0.12), 0 0 12px rgba(168, 85, 247, 0.35); }
    50%      { box-shadow: 0 0 0 7px rgba(168, 85, 247, 0.05), 0 0 22px rgba(168, 85, 247, 0.60); }
}
body .pr-step-item.done .pr-step-dot {
    border-color: var(--accent-green);
    background: var(--accent-green);
    color: #fff;
    animation: wqStepBurst 0.6s ease-out;
}
@keyframes wqStepBurst {
    0%   { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.55); }
    60%  { box-shadow: 0 0 0 14px rgba(34, 197, 94, 0.12); }
    100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}
body .pr-step-connector {
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--accent-green), var(--border));
    background-size: 200% 100%;
    background-position: 100% 0;
    transition: background-position 0.45s ease;
}
body .pr-step-connector.done {
    background-position: 0 0;
    box-shadow: 0 0 6px rgba(34, 197, 94, 0.4);
}

/* ============================================================
   5. 评分按钮动效
   ============================================================ */
.wq-rating-btn {
    position: relative;
    overflow: hidden;
}
.wq-rating-btn:hover { transform: translateY(-3px) scale(1.04); }
.wq-rating-btn:active { transform: scale(0.92); }
.wq-rating-btn.again:hover { box-shadow: 0 6px 20px rgba(239, 68, 68, 0.35), 0 0 0 2px rgba(239, 68, 68, 0.30); }
.wq-rating-btn.hard:hover  { box-shadow: 0 6px 20px rgba(249, 115, 22, 0.35), 0 0 0 2px rgba(249, 115, 22, 0.30); }
.wq-rating-btn.good:hover  { box-shadow: 0 6px 20px rgba(108, 92, 231, 0.35), 0 0 0 2px rgba(108, 92, 231, 0.30); }
.wq-rating-btn.easy:hover  { box-shadow: 0 6px 20px rgba(34, 197, 94, 0.35), 0 0 0 2px rgba(34, 197, 94, 0.30); }

/* 正确答案绿色脉冲 */
.wq-quiz-option.correct,
.wq-spell-input.correct {
    animation: wqCorrectPulse 0.6s ease;
}
@keyframes wqCorrectPulse {
    0%   { transform: scale(1);   box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.60); }
    50%  { transform: scale(1.03); box-shadow: 0 0 0 12px rgba(34, 197, 94, 0.00); }
    100% { transform: scale(1);   box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}
/* 错误答案红色震动 */
.wq-quiz-option.wrong,
.wq-spell-input.wrong {
    animation: wqShake 0.4s ease;
}
@keyframes wqShake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

/* ============================================================
   6. 巧币和连击特效
   ============================================================ */
/* 巧币徽章旋转光泽 */
.pr-coin-badge,
.wq-nav-coins {
    position: relative;
    overflow: hidden;
}
.pr-coin-badge::before,
.wq-nav-coins::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: conic-gradient(from 0deg,
        transparent 0%, rgba(255, 255, 255, 0.55) 8%, transparent 16%,
        transparent 50%, rgba(255, 215, 0, 0.35) 58%, transparent 66%, transparent 100%);
    animation: wqCoinShine 3.5s linear infinite;
    pointer-events: none;
    mix-blend-mode: screen;
}
@keyframes wqCoinShine {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

/* 连击数字放大回弹（覆盖原 prComboPop） */
.pr-combo-pop { animation: prComboPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1); }
/* 连击火焰闪烁 */
.pr-combo-flame {
    transform-origin: center bottom;
    animation: wqFlameFlicker 0.6s ease-in-out infinite alternate;
}
@keyframes wqFlameFlicker {
    0%   { transform: scale(1) rotate(-2deg); filter: drop-shadow(0 0 2px rgba(255, 107, 53, 0.5)); }
    100% { transform: scale(1.12) rotate(2deg); filter: drop-shadow(0 0 5px rgba(255, 165, 2, 0.85)); }
}

/* "+X 巧币" 浮动提示：抛物线上浮 + 渐隐 */
.pr-coin-tip-show {
    opacity: 1;
    transform: translate(-50%, -90px) scale(1.06);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.25s ease;
}
.pr-coin-tip-fade {
    opacity: 0;
    transform: translate(-50%, -185px) scale(0.85);
    transition: transform 0.7s ease-out, opacity 0.7s ease-out;
}

/* ============================================================
   7. 成就解锁庆祝
   ============================================================ */
.wq-ach-item.unlocked {
    overflow: visible;
    border-color: rgba(255, 165, 2, 0.55);
    box-shadow: 0 0 0 1px rgba(255, 165, 2, 0.4), 0 0 18px rgba(255, 165, 2, 0.25);
    animation: wqAchUnlock 0.7s cubic-bezier(0.34, 1.56, 0.64, 1),
               wqGoldPulse 2.4s ease-in-out infinite 0.7s;
}
@keyframes wqAchUnlock {
    0%   { transform: scale(0.85); opacity: 0.4; }
    60%  { transform: scale(1.06); }
    100% { transform: scale(1); opacity: 1; }
}
@keyframes wqGoldPulse {
    0%, 100% { box-shadow: 0 0 0 1px rgba(255, 165, 2, 0.4), 0 0 14px rgba(255, 165, 2, 0.22); }
    50%      { box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.65), 0 0 26px rgba(255, 215, 0, 0.45); }
}
/* 金光闪烁边框 ::before 已被原顶部条占用，使用 ::after 做金色流光描边 */
.wq-ach-item.unlocked::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 16px;
    padding: 2px;
    background: linear-gradient(120deg, #ffa502, #ffd700, #ff6348, #ffd700, #ffa502);
    background-size: 300% 100%;
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    animation: wqGoldShimmer 3s linear infinite;
    pointer-events: none;
}
@keyframes wqGoldShimmer {
    0%   { background-position: 0% 50%; }
    100% { background-position: 300% 50%; }
}
/* 解锁瞬间 CSS-only 彩屑绽放（::after 占用，借用图标容器做粒子） */
.wq-ach-item.unlocked .wq-ach-icon {
    animation: wqIconPop 0.6s ease-out;
}
@keyframes wqIconPop {
    0%   { transform: scale(0.6) rotate(-15deg); }
    60%  { transform: scale(1.18) rotate(8deg); }
    100% { transform: scale(1) rotate(0); }
}
.wq-ach-item.unlocked .wq-ach-icon::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 4px; height: 4px;
    border-radius: 50%;
    background: transparent;
    pointer-events: none;
    animation: wqConfetti 1s ease-out 0.15s;
}
@keyframes wqConfetti {
    0% {
        opacity: 1;
        box-shadow:
            0 0 0 0 #ffd700, 0 0 0 0 #ff6348, 0 0 0 0 #22c55e,
            0 0 0 0 #6c5ce7, 0 0 0 0 #ec4899, 0 0 0 0 #14b8a6,
            0 0 0 0 #f97316, 0 0 0 0 #a855f7;
    }
    100% {
        opacity: 0;
        box-shadow:
            -22px -26px 0 -1px #ffd700, 20px -30px 0 -1px #ff6348,
            -10px -38px 0 -1px #22c55e, 14px -20px 0 -1px #6c5ce7,
            24px -12px 0 -1px #ec4899, -24px -14px 0 -1px #14b8a6,
            6px -42px 0 -1px #f97316, -16px -6px 0 -1px #a855f7;
    }
}

/* ============================================================
   8. 字体和排版
   ============================================================ */
/* 标题渐变流光文字 */
.wq-page-title {
    background: linear-gradient(120deg, var(--accent-purple), var(--accent-blue), var(--accent-pink), var(--accent-purple));
    background-size: 250% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: wqTitleShimmer 6s ease-in-out infinite;
}
@keyframes wqTitleShimmer {
    0%, 100% { background-position: 0% 50%; }
    50%      { background-position: 100% 50%; }
}
/* 释义 / 描述行高优化 */
.wq-quiz-option,
.pr-intro-meaning,
.wq-ach-desc,
.wq-mode-desc,
.wq-quest-desc {
    line-height: 1.6;
}
/* 移动端单词展示更大更粗 */
@media (max-width: 480px) {
    .wq-word-text { font-size: clamp(28px, 9vw, 38px); font-weight: 900; }
    .pr-intro-word { font-size: 36px; font-weight: 900; }
}

/* ============================================================
   9. 移动端优化
   ============================================================ */
/* 触摸反馈：可交互元素 :active 缩放 */
@media (max-width: 768px) {
    .wq-btn-primary:active:not(:disabled),
    .wq-btn-secondary:active:not(:disabled),
    .wq-rating-btn:active,
    .wq-quiz-option:active,
    .wq-mode-card:active,
    .wq-quest-btn:active,
    .wq-audio-btn:active,
    .wq-theme-pill:active,
    .wq-nav-login-btn:active,
    .wq-nav-register-btn:active,
    .wq-quests-trigger:active,
    .wq-page-back:active,
    .wq-cross-promo:active {
        transform: scale(0.95) !important;
    }
    .wq-card + .wq-card { margin-top: 12px; }
}
/* 底部安全区域适配 */
.wq-main { padding-bottom: calc(60px + env(safe-area-inset-bottom)); }
@media (max-width: 480px) {
    .wq-main { padding-bottom: calc(40px + env(safe-area-inset-bottom)); }
}
/* 低端机减弱模糊以保证流畅 */
@media (max-width: 480px) {
    [data-theme="dark"] .wq-card,
    [data-theme="light"] .wq-card,
    [data-theme="eye"] .wq-card,
    [data-theme="dark"] .wq-mode-card,
    [data-theme="light"] .wq-mode-card,
    [data-theme="eye"] .wq-mode-card,
    [data-theme="dark"] .wq-stat-card,
    [data-theme="light"] .wq-stat-card,
    [data-theme="eye"] .wq-stat-card {
        -webkit-backdrop-filter: blur(14px);
        backdrop-filter: blur(14px);
    }
}

/* ============================================================
   10. 暗色 / 亮色模式切换平滑过渡
   ============================================================ */
body,
.wq-card,
.wq-mode-card,
.wq-stat-card,
.wq-nav,
.wq-progress,
.wq-quests-modal,
.wq-quest-card,
.wq-ach-item,
.pr-step-bar,
.wq-page-back,
.wq-spell-input,
.wq-syllable-box,
.wq-empty-state,
.wq-cal-day {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
html {
    transition: background-color 0.3s ease;
}

/* ============================================================
   无障碍：尊重 prefers-reduced-motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}


/* ============================================================
   WordQuant 顶配级视觉打磨 v202607101200
   追加于 wq-main.css 末尾，以高优先级选择器精细化覆盖
   设计目标：让旧页面品质达到/超过 vocab-test / battle 新页面
   覆盖：设计令牌 · 排版自适应 · 按钮系统 · 卡片层级 ·
        交互动画 · 表单控件 · 底部导航 · 列表/表格/Tab ·
        空状态 · 无障碍焦点 · 视差滚动 · 入场动画
   原则：仅 transform/opacity 走 GPU，移动端 375px 基准
   ============================================================ */

/* ============================================================
   1. 设计令牌：统一圆角 / 阴影层级 / 间距 / 时长 / 缓动
   ============================================================ */
:root {
    --wq-radius-card: 16px;
    --wq-radius-btn: 12px;
    --wq-radius-input: 12px;
    --wq-radius-tag: 8px;
    --wq-radius-sm: 6px;
    --wq-shadow-1: 0 1px 3px rgba(0,0,0,0.08);
    --wq-shadow-2: 0 4px 12px rgba(0,0,0,0.12);
    --wq-shadow-3: 0 8px 24px rgba(0,0,0,0.16);
    --wq-shadow-4: 0 16px 48px rgba(0,0,0,0.24);
    --wq-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --wq-ease-in: cubic-bezier(0.7, 0, 0.84, 0);
    --wq-ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --wq-dur-fast: 0.15s;
    --wq-dur: 0.25s;
    --wq-dur-slow: 0.4s;
    --wq-space-1: 8px;
    --wq-space-2: 16px;
    --wq-space-3: 24px;
    --wq-space-4: 32px;
}

/* ============================================================
   2. 顶部导航栏（header bar）精细化
   ============================================================ */
.wq-nav,
nav.wq-nav {
    min-height: 56px;
    padding: 0 16px;
    gap: 10px;
    box-shadow: 0 1px 0 var(--border), 0 4px 20px rgba(0,0,0,0.06);
}
/* logo 渐变流光统一 */

/* ============================================================
   3. 排版系统：标题层级 + 字号自适应 + 等宽数字
   ============================================================ */
/* 页面标题 24/700，区块标题 18/600，正文 15/400，辅助 13/400 */
.wq-page-title,
.wq-page-title-block h1 {
    font-size: clamp(22px, 6vw, 28px) !important;
    font-weight: 800 !important;
    letter-spacing: -0.5px;
    line-height: 1.2;
}
.wq-page-subtitle,
.wq-page-title-block p {
    font-size: 14px !important;
    color: var(--text-muted);
    line-height: 1.6;
}
.wq-section-title {
    font-size: 18px;
    font-weight: 700;
}
.wq-card-title {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.1px;
}

/* 所有数字展示用等宽数字 */
.wq-stat-value,
.wq-vtrend-stat .val,
.wq-story-stat .val,
.wq-overview-card .val,
.wq-streak-item .num,
.pr-combo-num,
.wq-nav-coins,
.wq-progress-part {
    font-variant-numeric: tabular-nums;
    font-feature-settings: 'tnum' 1;
}

/* 单词展示区自适应：词越长字越小 */
.wq-word-text,
.wq-word-main .wq-word-text {
    font-size: clamp(26px, 8.5vw, 40px);
    font-weight: 900;
    letter-spacing: -0.5px;
    line-height: 1.15;
    word-break: break-word;
}
.pr-intro-word {
    font-size: clamp(30px, 9vw, 42px) !important;
    font-weight: 900 !important;
    letter-spacing: 0.5px;
}

/* 长文本段落行高 1.7，列表项 1.5 */
.wq-card p,
.wq-tip,
.wq-mode-desc,
.wq-quest-desc,
.wq-ach-desc {
    line-height: 1.7;
}
.wq-word-row,
.wq-task-item,
.wq-confuse-item,
.wq-worst-item {
    line-height: 1.5;
}

/* ============================================================
   4. 统一按钮系统
   ============================================================ */
/* 主按钮：渐变 + 白字 + 圆角 12 + 阴影 + hover 上浮 + active 下压 */
.wq-btn,
.wq-btn-primary,
button.wq-btn-primary,
a.wq-btn-primary,
.wq-btn-ghost,
button.wq-btn-ghost,
a.wq-btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 12px 22px;
    border-radius: var(--wq-radius-btn);
    font-family: inherit;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    line-height: 1;
    border: none;
    transition: transform var(--wq-dur) var(--wq-ease-spring),
                box-shadow var(--wq-dur) ease,
                filter var(--wq-dur-fast) ease,
                background-color var(--wq-dur) ease,
                border-color var(--wq-dur) ease, color var(--wq-dur) ease;
}
.wq-btn-primary,
button.wq-btn-primary,
a.wq-btn-primary {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    color: #fff;
    box-shadow: 0 4px 14px rgba(108,92,231,0.30), inset 0 1px 0 rgba(255,255,255,0.18);
}
.wq-btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(108,92,231,0.42), inset 0 1px 0 rgba(255,255,255,0.22);
    filter: brightness(1.06);
}
.wq-btn-primary:active:not(:disabled) {
    transform: translateY(0) scale(0.97);
    box-shadow: 0 2px 8px rgba(108,92,231,0.30);
}
/* 次按钮：透明 + 边框 + 主题色文字 + hover 填充 */
.wq-btn-ghost,
button.wq-btn-ghost,
a.wq-btn-ghost {
    background: var(--card-bg);
    border: 1.5px solid var(--border);
    color: var(--text-primary);
}
.wq-btn-ghost:hover:not(:disabled) {
    border-color: var(--accent-purple);
    color: var(--accent-purple);
    background: rgba(168,85,247,0.08);
    transform: translateY(-2px);
}
.wq-btn-ghost:active:not(:disabled) {
    transform: scale(0.97);
}
.wq-btn:disabled,
.wq-btn-primary:disabled,
.wq-btn-ghost:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* 图标按钮：圆角方形 + hover 背景 */
.wq-icon-btn,
.wq-back-btn,
.wq-export-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 40px;
    padding: 8px 14px;
    border-radius: var(--wq-radius-btn);
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    transition: transform var(--wq-dur) var(--wq-ease-spring),
                border-color var(--wq-dur-fast) ease,
                color var(--wq-dur-fast) ease,
                background-color var(--wq-dur) ease;
}
.wq-icon-btn:hover,
.wq-back-btn:hover,
.wq-export-btn:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background: rgba(75,123,229,0.08);
    transform: translateY(-1px);
}
.wq-icon-btn:active,
.wq-back-btn:active,
.wq-export-btn:active {
    transform: scale(0.95);
}
.wq-icon-btn svg,
.wq-back-btn svg,
.wq-export-btn svg {
    width: 17px;
    height: 17px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
}

/* 按钮组间距 */
.wq-task-actions,
.wq-result-actions,
.wq-bt-actions {
    gap: 12px;
}

/* focus-visible 键盘可访问性 */
.wq-btn:focus-visible,
.wq-btn-primary:focus-visible,
.wq-btn-ghost:focus-visible,
.wq-icon-btn:focus-visible,
.wq-back-btn:focus-visible,
.wq-export-btn:focus-visible,
.wq-rating-btn:focus-visible,
.wq-quiz-option:focus-visible,
.wq-mode-card:focus-visible,
.wq-filter-tab:focus-visible,
.wq-tab:focus-visible,
.wq-input:focus-visible,
.wq-select:focus-visible,
.wq-textarea:focus-visible,
.wq-spell-input:focus-visible,
.wq-theme-pill:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

/* ============================================================
   5. 卡片层级统一：圆角 16 / padding 20 / 阴影分级
   ============================================================ */
.wq-card,
.wq-mode-card,
.wq-stat-card,
.wq-overview-card,
.wq-streak-item,
.wq-vtrend-stat,
.wq-story-stat {
    border-radius: var(--wq-radius-card);
    padding: 20px;
    box-shadow: var(--wq-shadow-1);
    transition: transform var(--wq-dur-slow) var(--wq-ease-spring),
                box-shadow var(--wq-dur) ease,
                border-color var(--wq-dur) ease,
                background-color var(--wq-dur) ease;
}
.wq-card {
    margin-bottom: 16px;
}
/* 卡片 hover 微浮 + 阴影升级 */
.wq-card:hover,
.wq-stat-card:hover,
.wq-overview-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--wq-shadow-2);
    border-color: rgba(108,92,231,0.22);
    z-index: 10;
}
@media (max-width: 480px) {
    .wq-card,
    .wq-mode-card,
    .wq-stat-card {
        padding: 16px;
        border-radius: 14px;
    }
}

/* ============================================================
   6. 首页功能入口卡片重设计
   ============================================================ */
.wq-mode-card,
.wq-feature-card-main {
    position: relative;
    overflow: hidden;
}
/* 卡片顶部渐变光带 */
.wq-mode-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue), var(--accent-teal));
    opacity: 0;
    transition: opacity var(--wq-dur) ease;
}
.wq-mode-card:hover::before {
    opacity: 1;
}
.wq-mode-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--wq-shadow-3);
    border-color: var(--accent-blue);
    z-index: 10;
}
.wq-mode-icon {
    border-radius: 14px;
    transition: transform var(--wq-dur) var(--wq-ease-spring);
}
.wq-mode-card:hover .wq-mode-icon {
    transform: scale(1.1) rotate(-4deg);
}
.wq-mode-go {
    transition: gap var(--wq-dur) ease, transform var(--wq-dur) ease;
}
.wq-mode-card:hover .wq-mode-go {
    gap: 10px;
}

/* 主入口大卡片渐变光晕 */
.wq-feature-card-main {
    border-radius: var(--wq-radius-card);
    position: relative;
    overflow: hidden;
}
.wq-feature-card-main::after {
    content: '';
    position: absolute;
    top: -50%; right: -20%;
    width: 60%; height: 200%;
    background: radial-gradient(circle, rgba(168,85,247,0.14), transparent 70%);
    pointer-events: none;
    transition: transform var(--wq-dur-slow) ease;
}
.wq-feature-card-main:hover::after {
    transform: translateX(-10px);
}
.wq-feature-card-main:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(132,94,194,0.20);
}

/* ============================================================
   7. 底部固定导航栏（首页 4 tab）
   ============================================================ */
.wq-bottom-nav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 90;
    display: flex;
    align-items: stretch;
    justify-content: space-around;
    height: calc(60px + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
    background: var(--nav-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-top: 1px solid var(--border);
    box-shadow: 0 -4px 24px rgba(0,0,0,0.08);
    max-width: 480px;
    margin: 0 auto;
}
.wq-bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 700;
    position: relative;
    transition: color var(--wq-dur-fast) ease;
    -webkit-tap-highlight-color: transparent;
}
.wq-bottom-nav-item svg {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform var(--wq-dur) var(--wq-ease-spring);
}
.wq-bottom-nav-item.active {
    color: var(--accent-purple);
}
.wq-bottom-nav-item.active svg {
    transform: translateY(-2px) scale(1.1);
}
/* 激活态顶部指示器 */
.wq-bottom-nav-item.active::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    border-radius: 0 0 3px 3px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue));
    animation: wqNavIndicatorIn var(--wq-dur) var(--wq-ease-spring);
}
@keyframes wqNavIndicatorIn {
    from { width: 0; opacity: 0; }
    to   { width: 24px; opacity: 1; }
}
.wq-bottom-nav-item:active svg {
    transform: scale(0.9);
}
/* 有底部导航时主内容留出空间 */
body:has(.wq-bottom-nav) .wq-main,
body:has(.wq-bottom-nav) .wq-home-main {
    padding-bottom: calc(76px + env(safe-area-inset-bottom)) !important;
}

/* ============================================================
   8. 表单控件统一升级：输入框 / 选择器 / 文本域
   ============================================================ */
.wq-input,
.wq-textarea,
.wq-select {
    width: 100%;
    padding: 13px 16px;
    border-radius: var(--wq-radius-input);
    border: 1.5px solid var(--border);
    background: var(--card-bg);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 15px;
    font-weight: 500;
    outline: none;
    transition: border-color var(--wq-dur) ease,
                box-shadow var(--wq-dur) ease,
                background-color var(--wq-dur) ease;
}
.wq-input::placeholder,
.wq-textarea::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}
.wq-input:focus,
.wq-textarea:focus,
.wq-select:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 4px rgba(75,123,229,0.14);
}
.wq-textarea {
    min-height: 110px;
    resize: vertical;
    line-height: 1.6;
}
/* 自定义下拉框箭头 */
.wq-select {
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 42px;
    cursor: pointer;
}
.wq-form-row {
    margin-bottom: 16px;
}
.wq-form-row label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

/* 拼写输入框光晕强化 */
.wq-spell-input {
    border-radius: var(--wq-radius-input);
    transition: border-color var(--wq-dur) ease,
                box-shadow var(--wq-dur) ease,
                background-color var(--wq-dur) ease,
                transform var(--wq-dur) var(--wq-ease-spring);
}
.wq-spell-input:focus {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 4px rgba(168,85,247,0.18), 0 4px 16px rgba(168,85,247,0.12);
    transform: scale(1.01);
}

/* ============================================================
   9. 释义选项卡片统一（练习页通用）
   ============================================================ */
.wq-quiz-option {
    border-radius: var(--wq-radius-card);
    padding: 16px 18px;
    border: 1.5px solid var(--border);
    background: var(--card-bg);
    font-size: 15px;
    font-weight: 600;
    line-height: 1.55;
    transition: transform var(--wq-dur-fast) ease,
                border-color var(--wq-dur-fast) ease,
                background-color var(--wq-dur) ease,
                box-shadow var(--wq-dur) ease;
}
.wq-quiz-option:hover:not(:disabled) {
    border-color: var(--accent-purple);
    transform: translateX(3px);
    box-shadow: var(--wq-shadow-1);
}
.wq-quiz-option:active:not(:disabled) {
    transform: translateX(3px) scale(0.99);
}

/* 评级按钮快捷键提示 */
.wq-rating-btn {
    border-radius: var(--wq-radius-btn);
    min-height: 48px;
    position: relative;
    overflow: hidden;
}
.wq-rating-btn::after {
    content: attr(data-rating);
    position: absolute;
    top: 4px;
    right: 6px;
    font-size: 9px;
    font-weight: 700;
    opacity: 0.35;
    line-height: 1;
    width: 14px;
    height: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    background: transparent;
    pointer-events: none;
}
/* 移动端隐藏快捷键数字（没有物理键盘） */
@media (max-width: 768px), (hover: none) and (pointer: coarse) {
    .wq-rating-btn::after {
        display: none !important;
    }
}

/* ============================================================
   10. 统计页数据卡片网格 + 图例 + 大号数字
   ============================================================ */
.wq-stat-grid {
    gap: 16px;
}
.wq-stat-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.wq-stat-value {
    font-size: clamp(28px, 7vw, 38px);
    font-weight: 900;
    letter-spacing: -1px;
    line-height: 1.05;
}
.wq-stat-icon {
    border-radius: 12px;
    transition: transform var(--wq-dur) var(--wq-ease-spring);
}
.wq-stat-card:hover .wq-stat-icon {
    transform: scale(1.12) rotate(-5deg);
}
/* 图表区域标题 + 图例 */
.wq-card-title {
    gap: 9px;
}
.wq-card-title svg {
    transition: transform var(--wq-dur) var(--wq-ease-spring);
}
.wq-card:hover .wq-card-title svg {
    transform: scale(1.15);
}
.wq-cal-legend {
    gap: 16px;
    font-weight: 600;
}

/* 成长之路时间线节点动画 */
.wq-story-node-dot {
    transition: transform var(--wq-dur) var(--wq-ease-spring),
                box-shadow var(--wq-dur) ease;
}
.wq-story-node:not(.locked) .wq-story-node-dot {
    animation: wqNodeGlow 2.6s ease-in-out infinite;
}
@keyframes wqNodeGlow {
    0%, 100% { box-shadow: 0 0 0 3px var(--bg), 0 0 8px rgba(168,85,247,0.25); }
    50%      { box-shadow: 0 0 0 3px var(--bg), 0 0 18px rgba(168,85,147,0.55); }
}
.wq-story-node:hover .wq-story-node-dot {
    transform: scale(1.15);
}
.wq-story-progress-fill {
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue), var(--accent-teal));
    background-size: 200% 100%;
    animation: wqShimmer 3s linear infinite;
}

/* ============================================================
   11. 词列表页：列表项 + 筛选 chip + 搜索框
   ============================================================ */
.wq-filter-tab {
    padding: 7px 16px;
    border-radius: 999px;
    border: 1.5px solid var(--border);
    background: var(--card-bg);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: transform var(--wq-dur-fast) var(--wq-ease-spring),
                border-color var(--wq-dur-fast) ease,
                color var(--wq-dur-fast) ease,
                background-color var(--wq-dur) ease;
}
.wq-filter-tab:hover {
    border-color: var(--accent-purple);
    color: var(--accent-purple);
    transform: translateY(-1px);
}
.wq-filter-tab:active {
    transform: scale(0.95);
}
.wq-filter-tab.active {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 12px rgba(108,92,231,0.30);
}
.wq-filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

/* 列表项重设计 */
.wq-word-row,
.wq-word-head {
    border-radius: var(--wq-radius-card);
    transition: transform var(--wq-dur-fast) ease,
                border-color var(--wq-dur-fast) ease,
                background-color var(--wq-dur) ease,
                box-shadow var(--wq-dur) ease;
}
.wq-word-row:hover {
    transform: translateX(3px);
    border-color: var(--accent-blue);
    box-shadow: var(--wq-shadow-1);
}
/* 等级标签彩色 chip */
.wq-tag {
    padding: 3px 10px;
    border-radius: var(--wq-radius-tag);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.2px;
}

/* 分页器 */
.wq-pager {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-top: 16px;
}
.wq-pager .info {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}

/* ============================================================
   12. 教师页：Tab 切换 + 表格 + 操作按钮
   ============================================================ */
.wq-tabs {
    display: flex;
    gap: 6px;
    max-width: 1100px;
    margin: 14px auto 0;
    padding: 0 20px;
    border-bottom: 2px solid var(--border);
    position: relative;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.wq-tab {
    padding: 12px 18px;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    position: relative;
    white-space: nowrap;
    transition: color var(--wq-dur-fast) ease;
    -webkit-tap-highlight-color: transparent;
}
.wq-tab:hover {
    color: var(--text-primary);
}
.wq-tab.active {
    color: var(--accent-purple);
}
/* Tab 激活下划线动画 */
.wq-tab.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 12px;
    right: 12px;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue));
    animation: wqTabIn var(--wq-dur) var(--wq-ease-spring);
}
@keyframes wqTabIn {
    from { transform: scaleX(0); opacity: 0; }
    to   { transform: scaleX(1); opacity: 1; }
}
/* Tab 面板切换淡入 */
.wq-tab-panel {
    animation: wqPanelFade var(--wq-dur-slow) var(--wq-ease-out);
}
@keyframes wqPanelFade {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* 表格升级：圆角表头 + 行 hover + 斑马纹 */
.wq-table,
table.wq-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    overflow: hidden;
    border-radius: var(--wq-radius-card);
    border: 1px solid var(--border);
}
.wq-table thead th {
    background: rgba(108,92,231,0.10);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 800;
    text-align: left;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
}
.wq-table tbody td {
    padding: 11px 14px;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
}
.wq-table tbody tr:nth-child(even) td {
    background: rgba(128,128,128,0.04);
}
.wq-table tbody tr {
    transition: background-color var(--wq-dur-fast) ease;
}
.wq-table tbody tr:hover td {
    background: rgba(75,123,229,0.08);
}
.wq-table tbody tr:last-child td {
    border-bottom: none;
}

/* 概览卡片 */
.wq-overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 14px;
    margin-bottom: 16px;
}
.wq-overview-card {
    text-align: center;
    padding: 18px 12px;
}
.wq-overview-card .val {
    font-size: 28px;
    font-weight: 900;
    color: var(--accent-blue);
    line-height: 1.1;
    margin-bottom: 4px;
}
.wq-overview-card .lbl {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
}

/* ============================================================
   13. 空状态精致占位
   ============================================================ */
.wq-empty,
.wq-empty-state {
    text-align: center;
    padding: 36px 20px;
    color: var(--text-muted);
    font-size: 14px;
}
.wq-empty::before,
.wq-empty-state::before {
    content: '';
    display: block;
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    border-radius: 50%;
    background: rgba(108,92,231,0.10);
    border: 2px dashed rgba(108,92,231,0.25);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='26' height='26' viewBox='0 0 24 24' fill='none' stroke='%23a855f7' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z'/%3E%3Cpolyline points='14 2 14 8 20 8'/%3E%3Cline x1='9' y1='13' x2='15' y2='13'/%3E%3Cline x1='9' y1='17' x2='13' y2='17'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 26px;
    animation: wqEmptyFloat 3s ease-in-out infinite;
}
@keyframes wqEmptyFloat {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-4px); }
}

/* ============================================================
   14. 页面加载整体淡入 + 列表逐项 stagger 入场
   ============================================================ */
@keyframes wqPageFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}
.wq-main,
.wq-container,
.wq-home-main,
.wq-page-header {
    animation: wqPageFadeIn var(--wq-dur-slow) var(--wq-ease-out);
}

/* stagger 入场：通用类，JS 给子项设 --wq-i */
.wq-stagger > * {
    opacity: 0;
    transform: translateY(14px);
    animation: wqStaggerIn 0.5s var(--wq-ease-spring) forwards;
    animation-delay: calc(var(--wq-i, 0) * 60ms);
}
@keyframes wqStaggerIn {
    to { opacity: 1; transform: translateY(0); }
}

/* 统计卡片自动 stagger（无需 JS，用 nth-child） */
.wq-stat-grid > .wq-stat-card,
.wq-mode-grid > .wq-mode-card,
.wq-overview-grid > .wq-overview-card,
.wq-story-stats > .wq-story-stat {
    opacity: 0;
    transform: translateY(16px);
    animation: wqStaggerIn 0.5s var(--wq-ease-spring) forwards;
}
.wq-stat-grid > .wq-stat-card:nth-child(1),
.wq-mode-grid > .wq-mode-card:nth-child(1),
.wq-overview-grid > .wq-overview-card:nth-child(1) { animation-delay: 0.05s; }
.wq-stat-grid > .wq-stat-card:nth-child(2),
.wq-mode-grid > .wq-mode-card:nth-child(2),
.wq-overview-grid > .wq-overview-card:nth-child(2) { animation-delay: 0.12s; }
.wq-stat-grid > .wq-stat-card:nth-child(3),
.wq-mode-grid > .wq-mode-card:nth-child(3),
.wq-overview-grid > .wq-overview-card:nth-child(3) { animation-delay: 0.19s; }
.wq-stat-grid > .wq-stat-card:nth-child(4),
.wq-mode-grid > .wq-mode-card:nth-child(4),
.wq-overview-grid > .wq-overview-card:nth-child(4) { animation-delay: 0.26s; }
.wq-mode-grid > .wq-mode-card:nth-child(5) { animation-delay: 0.33s; }
.wq-mode-grid > .wq-mode-card:nth-child(6) { animation-delay: 0.40s; }

/* 列表项逐个入场 */
.wq-word-list .wq-word-row {
    opacity: 0;
    transform: translateX(-10px);
    animation: wqListIn 0.4s var(--wq-ease-out) forwards;
    animation-delay: calc(var(--wq-i, 0) * 45ms);
}
@keyframes wqListIn {
    to { opacity: 1; transform: translateX(0); }
}

/* ============================================================
   15. 滚动视差（轻微 translateY）+ 卡片悬浮
   ============================================================ */
.wq-mode-card,
.wq-stat-card,
.wq-feature-card-main {
    will-change: transform;
}

/* ============================================================
   16. 步骤指示器 / 进度条精细化（练习页）
   ============================================================ */
.wq-progress {
    border-radius: var(--wq-radius-card);
    padding: 14px 18px;
}
.wq-progress-track {
    height: 8px;
    border-radius: 999px;
}
.wq-progress-fill {
    border-radius: 999px;
}

/* 五步路径标签流光 */
.wq-path-step {
    transition: transform var(--wq-dur) var(--wq-ease-spring);
}
.wq-path-step:hover {
    transform: translateY(-2px) scale(1.05);
}

/* ============================================================
   17. 微观细节统一
   ============================================================ */
/* 小标签 / chip 统一圆角 8 */
.wq-path-step,
.wq-task-status,
.wq-confuse-type,
.wq-def-pos,
.wq-mode-badge {
    border-radius: var(--wq-radius-tag);
}
/* 音频按钮 */
.wq-audio-btn {
    transition: transform var(--wq-dur) var(--wq-ease-spring),
                border-color var(--wq-dur) ease,
                box-shadow var(--wq-dur) ease;
}
.wq-audio-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 14px rgba(75,123,229,0.25);
}

/* 链接统一 */
a.wq-link,
.wq-link {
    color: var(--accent-purple);
    text-decoration: none;
    font-weight: 700;
    transition: color var(--wq-dur-fast) ease;
}
a.wq-link:hover,
.wq-link:hover {
    color: var(--accent-blue);
    text-decoration: underline;
}

/* Toast / 状态行 */
.wq-toast {
    border-radius: var(--wq-radius-card);
    box-shadow: var(--wq-shadow-3);
}
.wq-modal {
    border-radius: 20px;
    box-shadow: var(--wq-shadow-4);
    animation: wqModalIn var(--wq-dur-slow) var(--wq-ease-spring);
}
@keyframes wqModalIn {
    from { opacity: 0; transform: scale(0.92) translateY(20px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}
.wq-modal-mask {
    animation: wqMaskIn var(--wq-dur) ease;
}
@keyframes wqMaskIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* ============================================================
   18. 移动端 375px 基准优化
   ============================================================ */
@media (max-width: 480px) {
    /* 内容区最大宽度统一 480 居中 */
    .wq-main,
    .wq-container,
    .wq-home-main {
        max-width: 480px;
        margin: 0 auto;
        padding: 16px 14px 80px;
    }
    .wq-page-header {
        max-width: 480px;
        padding: 18px 14px 4px;
    }
    .wq-tabs {
        max-width: 480px;
        padding: 0 14px;
    }
    /* 按钮最小高度 44 */
    .wq-btn,
    .wq-btn-primary,
    .wq-btn-ghost {
        min-height: 44px;
        padding: 12px 18px;
        font-size: 14px;
    }
    /* 区块间距 8 倍数 */
    .wq-card {
        margin-bottom: 14px;
    }
    .wq-stat-grid,
    .wq-mode-grid {
        gap: 12px;
    }
    /* 底部导航文字 */
    .wq-bottom-nav-item {
        font-size: 10px;
    }
    .wq-bottom-nav-item svg {
        width: 20px;
        height: 20px;
    }
    /* 评级按钮两列时更大触摸区 */
    .wq-rating-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .wq-rating-btn {
        min-height: 52px;
    }
    /* 表单 */
    .wq-input,
    .wq-select,
    .wq-textarea {
        padding: 12px 14px;
        font-size: 14px;
    }
}

/* 超小屏 360px */
@media (max-width: 360px) {
    .wq-page-title,
    .wq-page-title-block h1 {
        font-size: 20px !important;
    }
    .wq-word-text {
        font-size: 26px;
    }
    .wq-stat-value {
        font-size: 26px;
    }
    .wq-tabs {
        gap: 2px;
    }
    .wq-tab {
        padding: 10px 12px;
        font-size: 13px;
    }
}

/* ============================================================
   19. 主题平滑过渡（含新增组件）
   ============================================================ */
.wq-bottom-nav,
.wq-tab,
.wq-filter-tab,
.wq-input,
.wq-select,
.wq-textarea,
.wq-table thead th,
.wq-table tbody td,
.wq-overview-card,
.wq-vtrend-stat,
.wq-story-stat,
.wq-empty,
.wq-empty-state {
    transition: background-color 0.3s ease, color 0.3s ease,
                border-color 0.3s ease, box-shadow 0.3s ease;
}

/* ============================================================
   20. 无障碍：减弱动画
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    .wq-stagger > *,
    .wq-word-list .wq-word-row,
    .wq-stat-grid > .wq-stat-card,
    .wq-mode-grid > .wq-mode-card,
    .wq-overview-grid > .wq-overview-card,
    .wq-story-stats > .wq-story-stat,
    .wq-main,
    .wq-container,
    .wq-home-main,
    .wq-page-header,
    .wq-tab-panel,
    .wq-modal,
    .wq-modal-mask {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }
}


/* ============================================================
   学习计划系统样式
   ============================================================ */

/* ---------- 计划设置面板（覆盖层）---------- */
.wq-plan-setup {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 9999;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 16px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    animation: wqFadeIn 0.3s ease;
}
@keyframes wqFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.wq-plan-setup-inner {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px 24px;
    max-width: 480px;
    width: 100%;
    max-height: calc(100vh - 32px);
    overflow-y: auto;
    position: relative;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    animation: wqSlideUp 0.4s cubic-bezier(0.16,1,0.3,1);
    margin: auto;
}
@keyframes wqSlideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}
.wq-plan-close {
    position: absolute;
    top: 16px; right: 16px;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text-muted);
    cursor: pointer;
    width: 32px; height: 32px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.15s, color 0.15s;
}
.wq-plan-close:hover {
    background: var(--border);
    color: var(--text);
}
.wq-plan-header {
    text-align: center;
    margin-bottom: 20px;
}
.wq-plan-emoji {
    font-size: 36px;
    display: block;
    margin-bottom: 8px;
}
.wq-plan-header h2 {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0 0 4px;
}
.wq-plan-header p {
    color: var(--text-muted);
    font-size: 14px;
    margin: 0;
}

/* ---------- 模式切换标签 ---------- */
.wq-plan-mode-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 20px;
    background: var(--bg);
    border-radius: 12px;
    padding: 4px;
}
.wq-plan-tab {
    flex: 1;
    padding: 10px 16px;
    border: none;
    background: none;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}
.wq-plan-tab.active {
    background: var(--card-bg);
    color: var(--accent-purple);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* ---------- 模式内容 ---------- */
.wq-plan-mode-content {
    margin-bottom: 20px;
}
.wq-plan-mode-content label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-weight: 600;
}

/* ---------- 滑块 ---------- */
.wq-plan-slider-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}
.wq-plan-slider {
    flex: 1;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    outline: none;
}
.wq-plan-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px; height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    cursor: pointer;
    border: 3px solid var(--card-bg);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    transition: transform 0.15s;
}
.wq-plan-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}
.wq-plan-slider::-moz-range-thumb {
    width: 22px; height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    cursor: pointer;
    border: 3px solid var(--card-bg);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.wq-plan-slider-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--accent-purple);
    min-width: 40px;
    text-align: center;
}
.wq-plan-slider-unit {
    font-size: 13px;
    color: var(--text-muted);
}

/* ---------- 快捷按钮 ---------- */
.wq-plan-quick-btns {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.wq-plan-quick-btns button {
    flex: 1;
    min-width: 70px;
    padding: 8px 12px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-secondary);
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}
.wq-plan-quick-btns button:hover {
    border-color: var(--accent-purple);
    color: var(--accent-purple);
}
.wq-plan-quick-btns button.active {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    color: #fff;
    border-color: transparent;
}

/* ---------- 预览区 ---------- */
.wq-plan-preview {
    background: var(--bg);
    border-radius: 14px;
    padding: 16px;
    margin-bottom: 20px;
    min-height: 80px;
}
.wq-plan-preview-loading {
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    padding: 20px 0;
}
.wq-plan-preview-main {
    text-align: center;
    margin-bottom: 12px;
}
.wq-plan-preview-big {
    font-size: 36px;
    font-weight: 900;
    color: var(--accent-purple);
    line-height: 1.2;
}
.wq-plan-preview-big .wq-plan-preview-days {
    font-size: 48px;
}
.wq-plan-preview-big .wq-plan-preview-unit {
    font-size: 18px;
    color: var(--text-muted);
    margin-left: 4px;
}
.wq-plan-preview-sub {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}
.wq-plan-peak-tip {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 10px 12px;
    background: rgba(255,165,0,0.1);
    border: 1px solid rgba(255,165,0,0.3);
    border-radius: 10px;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.5;
}
.wq-plan-peak-tip svg {
    flex-shrink: 0;
    color: var(--accent-orange);
    margin-top: 1px;
}
.wq-plan-avg-load {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 12px;
}

/* ---------- 迷你日历预览 ---------- */
.wq-plan-mini-cal {
    display: flex;
    gap: 4px;
    overflow-x: auto;
    padding-bottom: 4px;
}
.wq-plan-mini-day {
    flex-shrink: 0;
    width: 42px;
    text-align: center;
}
.wq-plan-mini-bars {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 2px;
    height: 50px;
    margin-bottom: 4px;
}
.wq-plan-mini-bar {
    width: 8px;
    border-radius: 3px 3px 0 0;
    min-height: 2px;
    transition: height 0.3s ease;
}
.wq-plan-mini-new {
    background: var(--accent-purple);
}
.wq-plan-mini-review {
    background: var(--accent-blue);
}
.wq-plan-mini-label {
    display: block;
    font-size: 10px;
    color: var(--text-muted);
}
.wq-plan-mini-count {
    display: block;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-secondary);
}
.wq-plan-mini-legend {
    display: flex;
    justify-content: center;
    gap: 16px;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 8px;
}
.wq-plan-legend-dot {
    display: inline-block;
    width: 10px; height: 10px;
    border-radius: 3px;
    margin-right: 4px;
    vertical-align: middle;
}

/* ---------- 开始日期 ---------- */
.wq-plan-start-date {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg);
    border-radius: 12px;
    margin-bottom: 16px;
}
.wq-plan-start-date label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 600;
}
.wq-plan-date-value {
    font-size: 14px;
    color: var(--accent-blue);
    font-weight: 600;
}

/* ---------- 创建按钮 ---------- */
.wq-plan-shuffle-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 0; border-top: 1px solid var(--wq-border, rgba(255,255,255,0.08));
}
.wq-plan-shuffle-label { font-size: 15px; color: var(--wq-text, #e0e0e0); font-weight: 600; }
.wq-plan-shuffle-toggle { display: flex; gap: 0; border-radius: 10px; overflow: hidden; border: 1px solid var(--wq-border, rgba(255,255,255,0.12)); }
.wq-shuffle-btn {
    padding: 8px 18px; font-size: 13px; border: none; cursor: pointer;
    background: transparent; color: var(--wq-text-muted, #888);
    transition: all 0.2s ease; font-weight: 500;
}
.wq-shuffle-btn.active {
    background: var(--wq-accent, #6c5ce7); color: #fff; font-weight: 600;
}
.wq-shuffle-btn:not(.active):hover { background: rgba(255,255,255,0.05); }

.wq-plan-create-btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
}
.wq-plan-create-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(132,94,194,0.3);
}
.wq-plan-create-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ---------- 目标条中的计划进度 ---------- */
.wq-plan-progress-wrap {
    margin-top: 6px;
}
.wq-plan-day-info {
    font-size: 12px;
    color: var(--text-muted);
    display: block;
    margin-bottom: 4px;
}
.wq-plan-progress-bar {
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}
.wq-plan-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue));
    border-radius: 2px;
    transition: width 0.6s ease;
}
.wq-cal-link-btn {
    display: inline-block;
    padding: 4px 10px;
    font-size: 12px;
    color: var(--accent-blue);
    text-decoration: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-right: 8px;
    transition: border-color 0.15s;
}
.wq-cal-link-btn:hover {
    border-color: var(--accent-blue);
}

/* ---------- 今日学习任务卡片 ---------- */
.wq-today-task {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 16px;
}
.wq-today-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.wq-today-header h3 {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0 0 4px;
}
.wq-today-header p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}
.wq-today-progress-ring {
    position: relative;
    width: 56px; height: 56px;
}
.wq-today-ring-pct {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%,-50%);
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-purple);
}
.wq-today-stats {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}
.wq-today-stat {
    flex: 1;
    text-align: center;
    padding: 12px 8px;
    background: var(--bg);
    border-radius: 12px;
}
.wq-today-stat-num {
    display: block;
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
}
.wq-today-stat-label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}
.wq-today-progress-bar {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 16px;
}
.wq-today-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue));
    border-radius: 3px;
    transition: width 0.6s ease;
}
.wq-today-start-btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
}
.wq-today-start-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(132,94,194,0.3);
}
.wq-today-start-btn.wq-done {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-teal));
}

/* ---------- 统计页：学习计划日历 ---------- */
.wq-sp-plan-bar {
    margin-bottom: 16px;
}
.wq-sp-plan-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}
.wq-sp-plan-info span:first-child {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}
.wq-sp-plan-days {
    font-size: 12px;
    color: var(--text-muted);
}
.wq-sp-plan-progress-bar {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
}
.wq-sp-plan-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue));
    border-radius: 3px;
    transition: width 0.6s ease;
}
.wq-sp-month-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}
.wq-sp-month-nav button {
    padding: 6px 14px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-secondary);
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}
.wq-sp-month-nav button:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}
.wq-sp-month-nav span {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

/* 日历网格 */
.wq-sp-cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}
.wq-sp-cal-header {
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    padding: 4px 0;
}
.wq-sp-cal-cell {
    aspect-ratio: 1;
    border-radius: 10px;
    background: var(--bg);
    border: 1px solid transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    transition: all 0.15s;
    overflow: hidden;
    min-height: 48px;
}
.wq-sp-cal-cell:hover {
    border-color: var(--accent-blue);
}
.wq-sp-cal-empty {
    background: transparent;
    cursor: default;
}
.wq-sp-cal-empty:hover {
    border-color: transparent;
}
.wq-sp-cal-date {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    z-index: 1;
}
.wq-sp-cal-has-data .wq-sp-cal-date {
    color: var(--text-primary);
}
.wq-sp-cal-study {
    background: rgba(132,94,194,0.08);
}
.wq-sp-cal-done {
    background: rgba(34,197,94,0.12);
    border-color: rgba(34,197,94,0.3);
}
.wq-sp-cal-done .wq-sp-cal-date {
    color: var(--accent-green);
}
.wq-sp-cal-today {
    border: 2px solid var(--accent-blue) !important;
}
.wq-sp-cal-missed {
    opacity: 0.5;
}
.wq-sp-cal-bars {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 2px;
    height: 16px;
    margin-top: 2px;
}
.wq-sp-cal-bar {
    width: 5px;
    border-radius: 2px 2px 0 0;
    min-height: 2px;
}
.wq-sp-cal-bar-new {
    background: var(--accent-purple);
}
.wq-sp-cal-bar-review {
    background: var(--accent-blue);
}
.wq-sp-cal-count {
    font-size: 10px;
    font-weight: 700;
    color: var(--text-muted);
    line-height: 1;
}
.wq-sp-cal-check {
    position: absolute;
    top: 2px; right: 4px;
    font-size: 10px;
    color: var(--accent-green);
    font-weight: 700;
}

/* 月度统计 */
.wq-sp-month-stats {
    margin-top: 16px;
}
.wq-sp-stat-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.wq-sp-stat-item {
    flex: 1;
    min-width: 80px;
    text-align: center;
    padding: 10px 6px;
    background: var(--bg);
    border-radius: 10px;
}
.wq-sp-stat-num {
    display: block;
    font-size: 20px;
    font-weight: 800;
    color: var(--accent-purple);
}
.wq-sp-stat-lbl {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* 日详情 */
.wq-sp-day-detail {
    margin-top: 16px;
    padding: 14px;
    background: var(--bg);
    border-radius: 12px;
}
.wq-sp-detail-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.wq-sp-detail-date {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}
.wq-sp-detail-status {
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 6px;
    font-weight: 600;
}
.wq-sp-status-pending { background: rgba(255,165,0,0.15); color: var(--accent-orange); }
.wq-sp-status-in_progress { background: rgba(59,130,246,0.15); color: var(--accent-blue); }
.wq-sp-status-completed { background: rgba(34,197,94,0.15); color: var(--accent-green); }
.wq-sp-status-skipped { background: rgba(148,163,184,0.15); color: var(--text-muted); }
.wq-sp-detail-stats {
    display: flex;
    gap: 12px;
}
.wq-sp-detail-stat {
    flex: 1;
    text-align: center;
}
.wq-sp-detail-stat .num {
    display: block;
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
}
.wq-sp-detail-stat .lbl {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 480px) {
    .wq-plan-setup-inner {
        padding: 20px 16px;
    }
    .wq-plan-preview-big .wq-plan-preview-days {
        font-size: 36px;
    }
    .wq-today-stat-num {
        font-size: 20px;
    }
    .wq-sp-cal-cell {
        min-height: 40px;
    }
    .wq-sp-cal-date {
        font-size: 11px;
    }
    .wq-sp-stat-item {
        min-width: 60px;
    }
    .wq-sp-stat-num {
        font-size: 16px;
    }
}

/* ---------- 护眼主题适配 ---------- */
[data-theme="eye"] .wq-plan-setup {
    background: rgba(0,0,0,0.4);
}
[data-theme="eye"] .wq-plan-peak-tip {
    background: rgba(180,120,40,0.1);
    border-color: rgba(180,120,40,0.3);
}
[data-theme="eye"] .wq-plan-shuffle-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 0; border-top: 1px solid var(--wq-border, rgba(255,255,255,0.08));
}
[data-theme="eye"] .wq-today-start-btn {
    display: block;
    width: 100%;
    padding: 14px;
    text-align: center;
}
.wq-plan-shuffle-label { font-size: 15px; color: var(--wq-text, #e0e0e0); font-weight: 600; }
.wq-shuffle-btn {
    padding: 8px 18px; font-size: 13px; border: none; cursor: pointer;
    background: transparent; color: var(--wq-text-muted, #888);
    transition: all 0.2s ease; font-weight: 500;
}
.wq-shuffle-btn.active {
    background: var(--wq-accent, #6c5ce7); color: #fff; font-weight: 600;
}
.wq-shuffle-btn:not(.active):hover { background: rgba(255,255,255,0.05); }

.wq-plan-create-btn {
    background: linear-gradient(135deg, #6B8E6B, #4A7A7A);
}
[data-theme="eye"] .wq-plan-mini-new {
    background: #6B8E6B;
}
[data-theme="eye"] .wq-plan-mini-review {
    background: #4A7A7A;
}

/* ---------- 亮色主题适配 ---------- */
[data-theme="light"] .wq-plan-setup {
    background: rgba(0,0,0,0.3);
}

/* ===== 全局滚动条精修 v202607101302 ===== */
/* Webkit (Chrome/Safari/iOS) — 纤细 + 智能显隐 */
*::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
*::-webkit-scrollbar-track {
    background: transparent;
}
*::-webkit-scrollbar-thumb {
    background: rgba(128, 128, 142, 0.25);
    border-radius: 999px;
    transition: background 0.2s ease;
}
*::-webkit-scrollbar-thumb:hover {
    background: rgba(128, 128, 142, 0.5);
}
*::-webkit-scrollbar-corner {
    background: transparent;
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(128, 128, 142, 0.25) transparent;
}

/* 全局 body 滚动条 — 默认隐藏，hover 时渐显 */
body::-webkit-scrollbar {
    width: 8px;
}
body::-webkit-scrollbar-thumb {
    background: transparent;
    border-radius: 999px;
    transition: background 0.3s ease;
}
body:hover::-webkit-scrollbar-thumb {
    background: rgba(128, 128, 142, 0.3);
}
body:hover::-webkit-scrollbar-thumb:hover {
    background: rgba(128, 128, 142, 0.55);
}

/* 弹窗/覆盖层内的滚动条 — 始终可见但纤细 */
.wq-plan-setup-inner::-webkit-scrollbar,
.wq-quests-body::-webkit-scrollbar,
.wq-modal::-webkit-scrollbar,
.wq-onboarding::-webkit-scrollbar {
    width: 5px;
}
.wq-plan-setup-inner::-webkit-scrollbar-thumb,
.wq-quests-body::-webkit-scrollbar-thumb,
.wq-modal::-webkit-scrollbar-thumb,
.wq-onboarding::-webkit-scrollbar-thumb {
    background: rgba(168, 85, 247, 0.3);
    border-radius: 999px;
}
.wq-plan-setup-inner::-webkit-scrollbar-thumb:hover,
.wq-quests-body::-webkit-scrollbar-thumb:hover,
.wq-modal::-webkit-scrollbar-thumb:hover,
.wq-onboarding::-webkit-scrollbar-thumb:hover {
    background: rgba(168, 85, 247, 0.5);
}

/* 暗色主题适配 */
[data-theme="dark"] *::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
}
[data-theme="dark"] *::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}
[data-theme="dark"] body:hover::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
}
[data-theme="dark"] body:hover::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}
[data-theme="dark"] * {
    scrollbar-color: rgba(255, 255, 255, 0.12) transparent;
}

/* 亮色主题适配 */
[data-theme="light"] *::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.12);
}
[data-theme="light"] *::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.25);
}
[data-theme="light"] body:hover::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
}
[data-theme="light"] * {
    scrollbar-color: rgba(0, 0, 0, 0.12) transparent;
}

/* 护眼主题适配 */
[data-theme="eye"] *::-webkit-scrollbar-thumb {
    background: rgba(101, 78, 50, 0.2);
}
[data-theme="eye"] *::-webkit-scrollbar-thumb:hover {
    background: rgba(101, 78, 50, 0.4);
}
[data-theme="eye"] * {
    scrollbar-color: rgba(101, 78, 50, 0.2) transparent;
}

/* 防止水平溢出但不裁切垂直方向（hover 上移需要垂直空间） */
.wq-target-grid {
    max-width: 100%;
    box-sizing: border-box;
}
.wq-calendar {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.wq-today-stats {
    max-width: 100%;
    box-sizing: border-box;
}

/* iOS/Mac 触控板默认不显示滚动条，保持原生体验 */
@media (hover: none) and (pointer: coarse) {
    *::-webkit-scrollbar {
        width: 0;
        height: 0;
    }
    * {
        scrollbar-width: none;
    }
}

/* 桌面端隐藏底部导航 (仅移动端显示) */
@media (min-width: 769px) {
    .wq-bottom-nav { display: none !important; }
    body:has(.wq-bottom-nav) .wq-main,
    body:has(.wq-bottom-nav) .wq-home-main {
        padding-bottom: 60px !important;
    }
}