/* ============================================================
   Oral Coach 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 对齐，克制、整洁，去除廉价感
   ============================================================ */

* { 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: hidden;
    -webkit-tap-highlight-color: transparent;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.5;
}

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

/* ===== 顶部导航栏（对齐 DP .dp-nav） ===== */
.sc-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 20px;
    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;
}
.sc-nav-brand {
    display: flex;
    align-items: baseline;
    flex-shrink: 0;
}
.sc-nav-logo {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
    text-decoration: none;
    font-family: "Pacifico", cursive;
    font-size: 22px;
    background: linear-gradient(135deg, #00C9A7 0%, #4B7BE5 50%, #845EC2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
    transition: filter 0.2s ease;
}
.sc-nav-logo:hover { filter: brightness(1.15); }
.sc-nav-logo .sc-logo-emoji {
    -webkit-text-fill-color: initial;
    font-family: 'Inter', sans-serif;
    font-size: 20px;
}
.sc-nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: nowrap;
}
.sc-nav-links a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.2s ease;
}
.sc-nav-links a:hover {
    color: var(--text-primary);
    background: var(--card-bg);
}
.sc-nav-links a.active {
    color: #fff;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    box-shadow: 0 2px 8px rgba(108, 92, 231, 0.25);
}
.sc-nav-ico { font-size: 16px; line-height: 1; }

/* ===== 主容器 ===== */
.sc-main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px 20px 60px;
    min-height: calc(100vh - 60px);
}
.sc-main-narrow {
    max-width: 760px;
}

/* ===== 页面标题 ===== */
.sc-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;
}
.sc-page-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 28px;
}

/* ===== 卡片（对齐 DP .dp-quick-card） ===== */
.sc-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;
}
.sc-card + .sc-card { margin-top: 16px; }

/* ===== 首页模式卡片网格 ===== */
.sc-mode-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-bottom: 32px;
}
.sc-mode-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 26px 22px;
    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;
}
.sc-mode-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-blue);
    box-shadow: 0 8px 24px rgba(108, 92, 231, 0.18);
}
.sc-mode-card:active { transform: scale(0.99); }
.sc-mode-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin-bottom: 16px;
    background: rgba(255, 255, 255, 0.1);
}
[data-theme="light"] .sc-mode-icon,
[data-theme="eye"] .sc-mode-icon { background: rgba(0, 0, 0, 0.05); }
.sc-mode-icon.blue { background: rgba(108, 92, 231, 0.16); }
.sc-mode-icon.purple { background: rgba(168, 85, 247, 0.16); }
.sc-mode-icon.teal { background: rgba(20, 184, 166, 0.16); }
.sc-mode-title {
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--text-primary);
}
.sc-mode-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 18px;
    flex: 1;
}
.sc-mode-go {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 700;
    color: var(--accent-blue);
}

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

/* ===== 按钮 ===== */
.sc-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;
}
.sc-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.sc-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);
}
.sc-btn-primary:hover:not(:disabled) {
    filter: brightness(1.08);
    box-shadow: 0 6px 18px rgba(108, 92, 231, 0.38);
}
.sc-btn-primary:active:not(:disabled) { transform: scale(0.97); }
.sc-btn-secondary {
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text);
}
.sc-btn-secondary:hover:not(:disabled) {
    border-color: var(--accent-blue);
    color: var(--text-primary);
}
.sc-btn-secondary:active:not(:disabled) { transform: scale(0.97); }
.sc-btn-block { width: 100%; }
.sc-btn-lg { padding: 16px 28px; font-size: 16px; }

/* ===== 录音按钮 ===== */
.sc-record-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    padding: 18px 16px;
    background: var(--card-bg);
    border-top: 1px solid var(--border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.sc-record-btn {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    border: 2px solid var(--accent-red);
    background: var(--card-bg);
    color: var(--accent-red);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}
.sc-record-btn:hover { transform: scale(1.05); }
.sc-record-btn.recording {
    background: linear-gradient(135deg, var(--accent-red), var(--accent-orange));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 0 0 6px rgba(239, 68, 68, 0.18);
    animation: sc-rec-pulse 1.4s ease-in-out infinite;
}
@keyframes sc-rec-pulse {
    0%, 100% { box-shadow: 0 0 0 6px rgba(239, 68, 68, 0.18); }
    50% { box-shadow: 0 0 0 12px rgba(239, 68, 68, 0.06); }
}
.sc-record-status {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    min-width: 90px;
    text-align: center;
}

/* ===== 进度条 ===== */
.sc-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;
}
.sc-progress-part {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}
.sc-progress-part .sc-progress-label {
    color: var(--text-muted);
    font-weight: 600;
    margin-right: 6px;
}
.sc-progress-track {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    overflow: hidden;
}
.sc-progress-fill {
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    transition: width 0.4s ease;
}

/* ===== 模拟考试布局 ===== */
.sc-exam-layout {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 18px;
    align-items: start;
}
.sc-chat {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 18px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.sc-chat-head {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}
.sc-chat-messages {
    flex: 1;
    padding: 18px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 340px;
    max-height: 52vh;
}
.sc-msg {
    max-width: 80%;
    padding: 11px 16px;
    border-radius: 18px;
    font-size: 14.5px;
    line-height: 1.55;
    word-break: break-word;
    animation: sc-msg-in 0.25s ease;
}
@keyframes sc-msg-in {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}
.sc-msg-examiner {
    align-self: flex-start;
    background: var(--accent-blue);
    color: #fff;
    border-bottom-left-radius: 5px;
}
.sc-msg-user {
    align-self: flex-end;
    background: var(--accent-green);
    color: #fff;
    border-bottom-right-radius: 5px;
}
.sc-msg-system {
    align-self: center;
    background: transparent;
    color: var(--text-muted);
    font-size: 12px;
    padding: 4px 0;
    max-width: 100%;
}
.sc-msg-tip {
    align-self: flex-start;
    background: var(--glass-bg);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: 12px;
    font-size: 13px;
    border-bottom-left-radius: 5px;
}
.sc-chat-foot {
    border-top: 1px solid var(--border);
}
.sc-chat-loading {
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
    padding: 18px;
}

/* ===== 评分面板 ===== */
.sc-score-panel {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 20px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    position: sticky;
    top: 76px;
}
.sc-score-panel-title {
    font-size: 15px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}
.sc-score-empty {
    color: var(--text-muted);
    font-size: 13px;
    text-align: center;
    padding: 24px 0;
}
.sc-score-row {
    margin-bottom: 14px;
}
.sc-score-row-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 6px;
}
.sc-score-row-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}
.sc-score-row-value {
    font-size: 15px;
    font-weight: 800;
    color: var(--text-primary);
}
.sc-score-bar {
    height: 8px;
    border-radius: 4px;
    background: var(--border);
    overflow: hidden;
}
.sc-score-bar-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}
.sc-score-bar-fill.grammar { background: var(--accent-blue); }
.sc-score-bar-fill.vocabulary { background: var(--accent-purple); }
.sc-score-bar-fill.interaction { background: var(--accent-teal); }
.sc-score-bar-fill.flency { background: var(--accent-green); }
.sc-score-bar-fill.total { background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue)); }
.sc-score-total {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}
.sc-score-total-label { font-size: 14px; font-weight: 700; color: var(--text-primary); }
.sc-score-total-value {
    font-size: 28px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.sc-feedback {
    margin-top: 16px;
    padding: 14px;
    border-radius: 12px;
    background: var(--glass-bg);
    border: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== 覆盖层（考试报告） ===== */
.sc-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}
.sc-overlay.show { display: flex; }
.sc-report {
    width: 100%;
    max-width: 560px;
    max-height: 88vh;
    overflow-y: auto;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}
.sc-report-title {
    font-size: 22px;
    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;
}
.sc-report-sub { font-size: 13px; color: var(--text-muted); margin-bottom: 20px; }
.sc-report-actions { display: flex; gap: 12px; margin-top: 22px; }

/* ===== 训练布局 ===== */
.sc-training-layout {
    display: grid;
    grid-template-columns: 0.7fr 1.6fr;
    gap: 18px;
    align-items: start;
}
.sc-sidebar {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 16px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    position: sticky;
    top: 76px;
    max-height: calc(100vh - 92px);
    overflow-y: auto;
}
.sc-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 14px;
}
.sc-tab {
    flex: 1 1 auto;
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}
.sc-tab:hover { color: var(--text-primary); border-color: var(--accent-blue); }
.sc-tab.active {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: #fff;
    border-color: transparent;
}
.sc-topic-list { display: flex; flex-direction: column; gap: 8px; }
.sc-topic-item {
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
    width: 100%;
}
.sc-topic-item:hover { color: var(--text-primary); border-color: var(--accent-blue); background: var(--glass-bg); }
.sc-topic-item.active {
    background: var(--glass-bg);
    border-color: var(--accent-blue);
    color: var(--text-primary);
}
.sc-training-main {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 22px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    min-height: 420px;
}
.sc-question {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 16px;
}
.sc-question-en { display: block; margin-bottom: 4px; }
.sc-question-zh { display: block; font-size: 13px; font-weight: 500; color: var(--text-muted); }

/* ===== 图片网格（Part 2） ===== */
.sc-pic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 12px;
    margin-bottom: 18px;
}
.sc-pic-card {
    padding: 16px 8px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--glass-bg);
    text-align: center;
    transition: all 0.2s ease;
}
.sc-pic-card:hover { border-color: var(--accent-blue); transform: translateY(-2px); }
.sc-pic-emoji { font-size: 34px; display: block; margin-bottom: 6px; }
.sc-pic-label { font-size: 12px; font-weight: 600; color: var(--text-secondary); }

/* ===== 训练结果区 ===== */
.sc-result { margin-top: 18px; display: flex; flex-direction: column; gap: 14px; }
.sc-result-block {
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--glass-bg);
}
.sc-result-label {
    font-size: 12px;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.sc-result-text { font-size: 14px; color: var(--text-primary); line-height: 1.6; }
.sc-result-text.muted { color: var(--text-secondary); }
.sc-result-scores { display: flex; flex-wrap: wrap; gap: 10px; }
.sc-result-chip {
    padding: 6px 12px;
    border-radius: 10px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
}
.sc-result-chip span { color: var(--text-muted); font-weight: 600; margin-right: 4px; }
.sc-nav-arrows {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 20px;
}

/* ===== 自由对话 ===== */
.sc-talk-wrap {
    max-width: 760px;
    margin: 0 auto;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 18px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    min-height: 70vh;
}
.sc-talk-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.sc-talk-tip {
    align-self: flex-start;
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 12px;
    background: rgba(234, 179, 8, 0.14);
    border: 1px solid rgba(234, 179, 8, 0.3);
    color: var(--accent-yellow);
    font-size: 13px;
    line-height: 1.55;
    border-bottom-left-radius: 5px;
}
.sc-talk-tip strong { font-weight: 800; }

/* ===== 历史记录列表 ===== */
.sc-history-list { display: flex; flex-direction: column; gap: 10px; }
.sc-history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--glass-bg);
    transition: all 0.2s ease;
}
.sc-history-item:hover { border-color: var(--accent-blue); }
.sc-history-info { flex: 1; min-width: 0; }
.sc-history-mode { font-size: 14px; font-weight: 700; color: var(--text-primary); }
.sc-history-time { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.sc-history-score {
    font-size: 18px;
    font-weight: 900;
    color: var(--accent-blue);
    flex-shrink: 0;
}
.sc-empty-state {
    text-align: center;
    padding: 32px 16px;
    color: var(--text-muted);
    font-size: 14px;
}

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

/* ============================================================
   响应式：平板 768px
   - 导航链接文字隐藏，只显示图标
   - 卡片变单列
   - 评分面板移到下方
   ============================================================ */
@media (max-width: 768px) {
    .sc-nav { padding: 10px 14px; gap: 8px; }
    .sc-nav-logo { font-size: 19px; }
    .sc-nav-links a { padding: 8px 10px; }
    .sc-nav-txt { display: none; }
    .sc-nav-ico { font-size: 18px; }

    .sc-main { padding: 20px 14px 48px; }

    .sc-mode-grid { grid-template-columns: 1fr; gap: 14px; }

    .sc-exam-layout { grid-template-columns: 1fr; }
    .sc-score-panel { position: static; top: auto; }
    .sc-chat-messages { min-height: 280px; max-height: 46vh; }

    .sc-training-layout { grid-template-columns: 1fr; }
    .sc-sidebar { position: static; max-height: none; }
    .sc-training-main { min-height: auto; }
}

/* ============================================================
   响应式：手机 480px
   - 字体缩小、间距压缩、进一步简化
   ============================================================ */
@media (max-width: 480px) {
    .sc-nav { padding: 8px 12px; }
    .sc-nav-logo { font-size: 17px; }
    .sc-nav-logo .sc-logo-emoji { font-size: 17px; }
    .sc-nav-links { gap: 0; }
    .sc-nav-links a { padding: 8px; }

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

    .sc-card { padding: 16px; border-radius: 14px; }
    .sc-mode-card { padding: 20px 18px; border-radius: 16px; }
    .sc-mode-icon { width: 44px; height: 44px; font-size: 22px; border-radius: 12px; }
    .sc-mode-title { font-size: 16px; }
    .sc-mode-desc { font-size: 12.5px; }

    .sc-chat-head { padding: 12px 14px; font-size: 13px; }
    .sc-chat-messages { padding: 14px; gap: 10px; min-height: 240px; }
    .sc-msg { font-size: 14px; padding: 10px 14px; max-width: 88%; }

    .sc-record-bar { gap: 12px; padding: 14px 12px; }
    .sc-record-btn { width: 60px; height: 60px; }
    .sc-record-status { font-size: 13px; min-width: 70px; }

    .sc-progress { padding: 12px 14px; }
    .sc-progress-part { font-size: 13px; }

    .sc-score-panel { padding: 16px; border-radius: 16px; }
    .sc-training-main { padding: 16px; border-radius: 16px; }
    .sc-question { font-size: 16px; }
    .sc-pic-grid { grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: 10px; }
    .sc-pic-emoji { font-size: 28px; }

    .sc-report { padding: 20px; border-radius: 16px; }
    .sc-report-title { font-size: 19px; }
    .sc-btn { padding: 12px 18px; font-size: 14px; }
    .sc-btn-lg { padding: 14px 22px; font-size: 15px; }

    .sc-history-item { padding: 12px 14px; }
    .sc-history-mode { font-size: 13px; }
    .sc-history-score { font-size: 16px; }
}

/* ============================================================
   导航栏升级：用户区域 + 汉堡菜单（v2）
   ============================================================ */

/* 用户区域 */
.sc-nav-user {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.sc-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;
}
.sc-nav-login-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
}
.sc-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;
}
.sc-nav-register-btn:hover {
    filter: brightness(1.08);
    box-shadow: 0 4px 12px rgba(108, 92, 231, 0.35);
}
/* 已登录：积分胶囊 */
.sc-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;
    transition: all 0.2s ease;
}
.sc-nav-coins:hover {
    background: rgba(255, 165, 2, 0.2);
}
.sc-nav-coins svg {
    width: 16px;
    height: 16px;
}
/* 已登录：退出按钮 */
.sc-nav-logout {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}
.sc-nav-logout:hover {
    color: var(--accent-red);
    border-color: var(--accent-red);
}

/* 汉堡菜单按钮 */
.sc-nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text);
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.2s ease;
}
.sc-nav-toggle:hover {
    border-color: var(--accent-blue);
}
.sc-nav-toggle.sc-open svg line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.sc-nav-toggle.sc-open svg line:nth-child(2) {
    opacity: 0;
}
.sc-nav-toggle.sc-open svg line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}
.sc-nav-toggle svg line {
    transition: all 0.25s ease;
    transform-origin: center;
}

/* 移动端导航 */
@media (max-width: 768px) {
    .sc-nav-toggle {
        display: inline-flex;
    }
    .sc-nav-links {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 8px 14px 16px;
        background: var(--nav-bg);
        backdrop-filter: blur(24px) saturate(180%);
        -webkit-backdrop-filter: blur(24px) saturate(180%);
        border-bottom: 1px solid var(--border);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s ease;
        z-index: 99;
        max-height: calc(100vh - 56px);
        overflow-y: auto;
    }
    .sc-nav-links.sc-nav-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .sc-nav-links a {
        padding: 12px 14px;
        border-radius: 10px;
        font-size: 15px;
    }
    .sc-nav-links a.active {
        margin-bottom: 2px;
    }
    .sc-nav-user {
        gap: 6px;
    }
    .sc-nav-login-btn,
    .sc-nav-register-btn {
        padding: 7px 12px;
        font-size: 13px;
    }
    .sc-nav-coins {
        padding: 5px 10px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .sc-nav-login-btn,
    .sc-nav-register-btn {
        padding: 6px 10px;
        font-size: 12px;
    }
    .sc-nav-register-btn span:last-child {
        display: none;
    }
}

/* 首页未登录：功能介绍 */
.sc-hero {
    text-align: center;
    padding: 40px 20px 32px;
}
.sc-hero-title {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.sc-hero-desc {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 520px;
    margin: 0 auto 28px;
    line-height: 1.6;
}
.sc-hero-btns {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}
.sc-hero-btns .sc-btn {
    min-width: 140px;
}
@media (max-width: 480px) {
    .sc-hero { padding: 28px 16px 24px; }
    .sc-hero-title { font-size: 26px; }
    .sc-hero-desc { font-size: 14px; }
}


/* DP 对齐修复：顶栏只保留品牌与用户工具区 */
.sc-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    min-height: 60px;
}
.sc-nav-brand {
    display: flex;
    align-items: baseline !important;
    gap: 8px;
    flex-shrink: 0;
}
.sc-nav-logo {
    display: inline-flex;
    align-items: baseline !important;
    font-size: 22px;
}
.sc-logo-zh {
    font-family: "ZCOOL KuaiLe", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 18px;
    line-height: 1;
    align-self: baseline;
    transform: translateY(1px);
}
.sc-nav-toggle {
    display: none !important;
}
.sc-nav-links {
    display: none !important;
}
.sc-nav-user {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.sc-nav-login-btn,
.sc-nav-register-btn {
    min-height: 36px;
}
@media (max-width: 480px) {
    .sc-nav {
        padding: 10px 14px;
        min-height: 56px;
    }
    .sc-nav-logo {
        font-size: 19px !important;
    }
    .sc-logo-zh {
        font-size: 15px !important;
    }
    .sc-nav-login-btn,
    .sc-nav-register-btn {
        padding: 7px 10px;
        font-size: 12px;
    }
}


/* DP 补齐修复：主题切换、返回按钮、品牌渐变 */
.sc-logo-zh {
    background: linear-gradient(135deg, #00C9A7 0%, #4B7BE5 50%, #845EC2 100%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
}
.sc-theme-pill {
    min-height: 36px;
}
.sc-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;
}
.sc-page-back:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
}
@media (max-width: 480px) {
    .sc-theme-pill {
        padding: 7px 10px;
    }
    .sc-theme-pill span {
        display: none;
    }
    .sc-page-back {
        margin-bottom: 14px;
    }
}


/* 跨项目引导：DP + WordSmith */
.sc-cross-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin: 0 0 20px;
}
.sc-cross-promo,
.sc-cross-suggestion {
    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;
}
.sc-cross-promo:hover,
.sc-cross-suggestion:hover {
    border-color: rgba(168,85,247,0.36);
    transform: translateY(-1px);
}
.sc-cross-promo:active,
.sc-cross-suggestion:active {
    transform: scale(.98);
}
.sc-cross-promo span,
.sc-cross-suggestion span {
    flex: 1;
    text-align: center;
    line-height: 1.45;
}
.sc-cross-icon {
    width: 20px;
    height: 20px;
    flex: 0 0 auto;
}
.sc-cross-arrow {
    width: 16px;
    height: 16px;
    flex: 0 0 auto;
}
.sc-cross-suggestions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 14px;
}
.sc-cross-suggestion {
    justify-content: flex-start;
    text-align: left;
    background: linear-gradient(135deg, rgba(75,123,229,0.08), rgba(132,94,194,0.08));
    color: var(--accent-blue, #4B7BE5);
}
.sc-cross-suggestion span {
    text-align: left;
}
.sc-cross-suggestion.ws {
    color: var(--accent-purple, #845EC2);
    border-color: rgba(168,85,247,0.20);
}
.sc-cross-suggestion.dp {
    color: var(--accent-blue, #4B7BE5);
    border-color: rgba(75,123,229,0.22);
}
@media (max-width: 520px) {
    .sc-cross-grid {
        grid-template-columns: 1fr;
    }
    .sc-cross-promo,
    .sc-cross-suggestion {
        padding: 13px 14px;
        font-size: 13px;
    }
}


/* DP 对齐：语练每日任务弹窗与巧币 */
.sc-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;
}
.sc-quests-trigger:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
}
.sc-quests-trigger.has-pending::after {
    content: "";
    position: absolute;
    top: 4px;
    right: 4px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-red, #ff4757);
    box-shadow: 0 0 0 2px var(--nav-bg);
}
.sc-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);
}
.sc-quests-overlay[hidden] {
    display: none;
}
.sc-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);
}
.sc-quests-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 18px 12px;
    border-bottom: 1px solid var(--border);
}
.sc-quests-header .sc-icon-sm {
    color: var(--accent-purple);
}
.sc-quests-title {
    flex: 1;
    margin: 0;
    font-size: 18px;
    font-weight: 900;
    color: var(--text-primary);
}
.sc-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;
}
.sc-quests-body {
    padding: 14px;
    overflow-y: auto;
}
.sc-quests-loading {
    padding: 28px 12px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}
.sc-quests-footer {
    padding: 12px 18px 16px;
    color: var(--text-muted);
    font-size: 12px;
    border-top: 1px solid var(--border);
}
.sc-quest-modal-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;
}
.sc-quest-modal-card.is-claimed {
    opacity: .72;
}
.sc-quest-modal-name {
    font-size: 14px;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.sc-quest-modal-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.45;
    margin-bottom: 8px;
}
.sc-quest-progress {
    height: 6px;
    border-radius: 999px;
    background: var(--border);
    overflow: hidden;
    margin-bottom: 6px;
}
.sc-quest-progress-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
}
.sc-quest-progress-text {
    font-size: 12px;
    color: var(--text-muted);
}
.sc-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;
}
.sc-quest-btn-start {
    background: var(--card-bg);
    color: var(--text-secondary);
}
.sc-quest-btn-claim {
    border-color: transparent;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    color: #fff;
}
.sc-quest-btn-claimed {
    background: var(--bg);
    color: var(--text-muted);
    cursor: default;
}
.sc-float-host {
    position: fixed;
    top: 76px;
    right: 18px;
    z-index: 1100;
    pointer-events: none;
}
.sc-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);
}
.sc-float.error {
    background: linear-gradient(135deg, #ff6b6b, #ff4757);
}
.sc-float.show {
    opacity: 1;
    transform: translateY(0);
}
.sc-float.out {
    opacity: 0;
    transform: translateY(-12px);
}
@media (max-width: 520px) {
    .sc-quests-trigger span {
        display: none;
    }
    .sc-quests-trigger {
        width: 36px;
        padding: 7px;
    }
    .sc-quest-modal-card {
        grid-template-columns: 1fr;
    }
    .sc-quest-btn {
        width: 100%;
    }
}


/* ============================================================
   全真模拟：等级选择下拉菜单
   对齐 .sc-quests-trigger / .sc-nav-login-btn 设计语言
   ============================================================ */
.sc-level-select-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
}
.sc-level-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 8px 40px 8px 16px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-secondary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
}
.sc-level-select:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
}
.sc-level-select:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(75, 123, 229, 0.12);
}
.sc-level-select option {
    padding: 8px 12px;
    font-size: 14px;
    font-weight: 600;
}
.sc-select-arrow {
    position: absolute;
    right: 12px;
    pointer-events: none;
    color: var(--text-muted);
    transition: transform 0.2s ease;
}
.sc-level-select-wrap:hover .sc-select-arrow {
    color: var(--accent-blue);
}
@media (max-width: 480px) {
    .sc-level-select {
        padding: 7px 36px 7px 14px;
        font-size: 13px;
        min-height: 36px;
    }
}


/* ============================================================
   Oral Coach 顶配视觉增强层 v2.0
   追加于原有样式之上，不修改已有规则
   ============================================================ */

/* ===== 全局动画关键帧 ===== */
@keyframes sc-fade-in-up { from { opacity:0; transform:translateY(24px); } to { opacity:1; transform:translateY(0); } }
@keyframes sc-fade-in { from { opacity:0; } to { opacity:1; } }
@keyframes sc-scale-in { from { opacity:0; transform:scale(.88); } to { opacity:1; transform:scale(1); } }
@keyframes sc-slide-in-right { from { opacity:0; transform:translateX(30px); } to { opacity:1; transform:translateX(0); } }
@keyframes sc-glow-pulse { 0%,100% { box-shadow:0 0 20px rgba(75,123,229,.12); } 50% { box-shadow:0 0 40px rgba(75,123,229,.24); } }
@keyframes sc-shimmer { 0% { background-position:-200% 0; } 100% { background-position:200% 0; } }
@keyframes sc-count-up { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:translateY(0); } }
@keyframes sc-float { 0%,100% { transform:translateY(0); } 50% { transform:translateY(-5px); } }
@keyframes sc-spin { to { transform:rotate(360deg); } }
@keyframes sc-gradient-shift { 0% { background-position:0% 50%; } 50% { background-position:100% 50%; } 100% { background-position:0% 50%; } }
@keyframes sc-pulse-ring { 0% { transform:scale(.6); opacity:.7; } 100% { transform:scale(1.6); opacity:0; } }
@keyframes sc-bar-grow { from { width:0%; } }

/* ===== 入场动画工具类 ===== */
.sc-anim-in-up { animation: sc-fade-in-up .5s ease-out backwards; }
.sc-anim-in { animation: sc-fade-in .4s ease-out backwards; }
.sc-anim-scale { animation: sc-scale-in .4s cubic-bezier(.34,1.56,.64,1) backwards; }
.sc-anim-slide-r { animation: sc-slide-in-right .4s ease-out backwards; }
.sc-anim-float { animation: sc-float 3s ease-in-out infinite; }
.sc-anim-glow { animation: sc-glow-pulse 3s ease-in-out infinite; }
.sc-delay-1 { animation-delay: .05s; }
.sc-delay-2 { animation-delay: .1s; }
.sc-delay-3 { animation-delay: .15s; }
.sc-delay-4 { animation-delay: .2s; }
.sc-delay-5 { animation-delay: .25s; }
.sc-delay-6 { animation-delay: .3s; }

/* ===== 页面标题增强 ===== */
.sc-page-title {
    background: linear-gradient(135deg, #00C9A7 0%, #4B7BE5 40%, #845EC2 70%, #FF6B9D 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.sc-page-back {
    transition: all .25s cubic-bezier(.4,0,.2,1);
}
.sc-page-back:hover {
    transform: translateX(-3px);
    box-shadow: 0 4px 14px rgba(75,123,229,.12);
}
.sc-page-back svg {
    transition: transform .25s ease;
}
.sc-page-back:hover svg {
    transform: translateX(-2px);
}

/* ===== 卡片增强 ===== */
.sc-card {
    transition: all .3s cubic-bezier(.4,0,.2,1);
    position: relative;
}
.sc-card:hover {
    border-color: rgba(75,123,229,.25);
    box-shadow: 0 8px 32px rgba(0,0,0,.08);
}

/* ===== 首页模式卡片增强 ===== */
.sc-mode-card {
    transition: all .35s cubic-bezier(.4,0,.2,1);
}
.sc-mode-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(108,92,231,.15);
    border-color: transparent;
}
.sc-mode-card:active { transform: translateY(-2px) scale(.99); }
.sc-mode-icon {
    transition: transform .35s cubic-bezier(.34,1.56,.64,1);
}
.sc-mode-card:hover .sc-mode-icon {
    transform: scale(1.12) rotate(-3deg);
}
.sc-mode-go {
    transition: gap .25s ease;
}
.sc-mode-card:hover .sc-mode-go {
    gap: 10px;
}
.sc-mode-go svg {
    transition: transform .25s ease;
}
.sc-mode-card:hover .sc-mode-go svg {
    transform: translateX(4px);
}

/* ===== 按钮增强 ===== */
.sc-btn {
    transition: all .25s cubic-bezier(.4,0,.2,1);
    position: relative;
}
.sc-btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(108,92,231,.32);
}
.sc-btn-primary:active:not(:disabled) {
    transform: translateY(0) scale(.98);
}
.sc-btn-secondary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(0,0,0,.06);
}

/* ===== 消息动画增强 ===== */
.sc-msg {
    animation: sc-msg-in .3s cubic-bezier(.34,1.56,.64,1);
}

/* ===== 评分条增强 ===== */
.sc-score-bar-fill {
    position: relative;
}
.sc-score-bar-fill.grammar { background: linear-gradient(90deg, var(--accent-blue), #6ba3ff, var(--accent-blue)) !important; }
.sc-score-bar-fill.vocabulary { background: linear-gradient(90deg, var(--accent-purple), #c084fc, var(--accent-purple)) !important; }
.sc-score-bar-fill.interaction { background: linear-gradient(90deg, var(--accent-teal), #5eead4, var(--accent-teal)) !important; }
.sc-score-bar-fill.fluency { background: linear-gradient(90deg, var(--accent-green), #86efac, var(--accent-green)) !important; }
.sc-score-bar-fill.total { background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue), var(--accent-purple)) !important; background-size: 200% 100% !important; }

/* ===== 进度条增强 ===== */
.sc-progress-fill {
    background: linear-gradient(90deg, #00C9A7, #4B7BE5, #845EC2) !important;
    position: relative;
}
/* ===== 历史记录项增强 ===== */
.sc-history-item {
    transition: all .25s cubic-bezier(.4,0,.2,1);
}
.sc-history-item:hover {
    transform: translateX(4px);
    border-color: var(--accent-blue);
    box-shadow: 0 4px 16px rgba(75,123,229,.08);
}
.sc-history-score {
    transition: transform .25s ease;
}
.sc-history-item:hover .sc-history-score {
    transform: scale(1.08);
}

/* ===== Tab 增强 ===== */
.sc-tab {
    transition: all .25s cubic-bezier(.4,0,.2,1);
}
.sc-tab:hover {
    transform: translateY(-1px);
}

/* ===== 话题项增强 ===== */
.sc-topic-item {
    transition: all .2s cubic-bezier(.4,0,.2,1);
}
.sc-topic-item:hover {
    transform: translateX(3px);
}

/* ===== 图片卡片增强 ===== */
.sc-pic-card {
    transition: all .25s cubic-bezier(.4,0,.2,1);
}
.sc-pic-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 8px 20px rgba(0,0,0,.08);
}

/* ===== 空状态增强 ===== */
.sc-empty-state {
    animation: sc-fade-in .4s ease-out;
}
.sc-empty-state svg {
    opacity: .3;
    margin-bottom: 8px;
}

/* ===== 报告弹窗增强 ===== */
.sc-overlay.show .sc-report {
    animation: sc-scale-in .4s cubic-bezier(.34,1.56,.64,1);
}

/* ===== Spinner ===== */
.sc-spinner {
    width: 36px; height: 36px;
    border: 3px solid var(--border);
    border-top-color: var(--accent-blue);
    border-right-color: var(--accent-purple);
    border-radius: 50%;
    animation: sc-spin .8s linear infinite;
    margin: 0 auto;
}

/* ===== 渐变文字工具类 ===== */
.sc-text-gradient {
    background: linear-gradient(135deg, #00C9A7, #4B7BE5, #845EC2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.sc-text-gradient-warm {
    background: linear-gradient(135deg, #FF6B9D, #FFB347, #FFD60A);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== 玻璃态增强 ===== */
.sc-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    border: 1px solid var(--glass-border);
}

/* ===== 数字等宽 ===== */
.sc-tabular { font-variant-numeric: tabular-nums; letter-spacing: -.5px; }

/* ===== hero 区增强 ===== */
.sc-hero-title {
    background: linear-gradient(135deg, #00C9A7 0%, #4B7BE5 40%, #845EC2 70%, #FF6B9D 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Section title 增强 ===== */
.sc-section-title {
    padding-left: 2px;
}

/* ===== 移动端微调 ===== */
@media (max-width: 480px) {
    .sc-mode-card:hover {
        transform: translateY(-3px);
    }
    .sc-history-item:hover {
        transform: none;
    }
}


/* ============================================================
   即用即现细滚动条 (macOS overlay style)
   ============================================================ */

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: transparent transparent;
}
*:hover {
    scrollbar-color: rgba(128,128,128,0.3) transparent;
}

/* WebKit / Chromium */
::-webkit-scrollbar {
    width: 0px;
    height: 0px;
    background: transparent;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: transparent;
    border-radius: 4px;
    transition: background 0.2s ease;
}
*:hover::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}
*:hover::-webkit-scrollbar-thumb {
    background: rgba(128,128,128,0.35);
    border-radius: 4px;
}
*:hover::-webkit-scrollbar-thumb:hover {
    background: rgba(128,128,128,0.5);
}

/* 暗色主题下滚动条颜色 */
[data-theme="dark"] *:hover::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.15);
}
[data-theme="dark"] *:hover::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.25);
}
[data-theme="dark"] *:hover {
    scrollbar-color: rgba(255,255,255,0.15) transparent;
}

/* 亮色主题 */
[data-theme="light"] *:hover::-webkit-scrollbar-thumb,
[data-theme="eye"] *:hover::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.2);
}
[data-theme="light"] *:hover::-webkit-scrollbar-thumb:hover,
[data-theme="eye"] *:hover::-webkit-scrollbar-thumb:hover {
    background: rgba(0,0,0,0.3);
}