/**
 * kbarok v3 - style.css (精简版)
 * 配色：主蓝#165DFF / 辅助绿#00B42A / 警示红#F53F3F / 背景白#FFFFFF / 控件灰#F7F8FA / 边框灰#E5E6EB / 文字#1D2129
 * 行数：~650行（原1096行，精简40%）
 */

/* ============ 重置与基础 ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --primary:       #165DFF;
    --primary-hover: #0d47e1;
    --success:       #00B42A;
    --success-hover: #009923;
    --danger:        #F53F3F;
    --danger-hover:  #d93030;
    --bg:            #FFFFFF;
    --ctrl-bg:       #F7F8FA;
    --border:        #E5E6EB;
    --text:          #1D2129;
    --text-2:        #4E5969;
    --shadow:        0 2px 12px rgba(22,93,255,0.15);
    --radius:        8px;
    --radius-lg:     14px;
}

html, body {
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    overflow: hidden;
}

/* ============ 主容器 ============ */
.app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* ============ 顶部栏 ============ */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 clamp(12px, 3vw, 40px);
    border-bottom: 1px solid var(--border);
    background: var(--bg);
    flex-shrink: 0;
    height: clamp(82px, 10vh, 100px);
}

.topbar-brand { display: flex; align-items: center; height: 100%; gap: 10px; }

.brand-logo-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    flex-shrink: 0;
}

.brand-logo {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 1px 4px rgba(0,0,0,0.15);
}

.brand-name {
    font-size: 13px;
    font-weight: 700;
    color: #165DFF;
    letter-spacing: 1.5px;
    text-transform: lowercase;
    line-height: 2;
}

.welcome-line {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 3px;
}

.welcome-line.lang-zh { flex-direction: column-reverse; }
.welcome-line.lang-en { flex-direction: column; }

.welcome-en.line-main, .welcome-zh.line-main {
    font-size: clamp(14px, 2.5vw, 19px);
    font-weight: 800;
    color: #f59e0b;
    letter-spacing: -0.3px;
    line-height: 1;
}

.welcome-en.line-sub, .welcome-zh.line-sub {
    font-size: clamp(9px, 1.5vw, 11px);
    font-weight: 400;
    color: #9ca3af;
    letter-spacing: 0.5px;
    line-height: 1;
}

.lang-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--ctrl-bg);
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    font-weight: 700;
    color: var(--primary);
    cursor: pointer;
    transition: all 0.22s;
    overflow: hidden;
    height: 38px;
    padding: 0 14px;
    min-width: 48px;
}

@media (max-width: 768px) {
    .lang-btn {
        height: 32px;
        padding: 0 10px;
        font-size: 13px;
        min-width: 40px;
    }
}

.lang-label  { padding: 0 2px; transition: opacity 0.2s; }
.lang-slash  { color: #CBD0DC; font-weight: 400; padding: 0 2px; }
.lang-label-en { padding: 0 2px; color: var(--primary); transition: all 0.2s; }
.lang-btn:hover { background: #165DFF; border-color: #165DFF; }
.lang-btn:hover .lang-label-en { color: rgba(255,255,255,0.85); }

/* ============ 视频区域 ============ */
.video-area {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: #000;
    min-height: 0;
}

#mainVideo { width: 100%; height: 100%; object-fit: contain; display: block; }

#klineCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
    object-fit: contain;
}

.video-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0a0a0a;
    color: rgba(255,255,255,0.4);
    font-size: 16px;
    pointer-events: none;
}

/* ============ 控制栏 ============ */
.controlbar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: clamp(6px, 1.5vh, 12px) clamp(10px, 2vw, 20px);
    background: var(--bg);
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    min-height: clamp(36px, 10vh, 80px);
    flex-wrap: wrap;
}

.ctrl-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    height: clamp(32px, 5vh, 42px);
    padding: 0 clamp(10px, 1.5vw, 16px);
    border-radius: var(--radius);
    border: 1.5px solid var(--border);
    background: var(--ctrl-bg);
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    user-select: none;
    outline: none;
}

.ctrl-btn:hover { border-color: var(--primary); color: var(--primary); background: #fff; }
.ctrl-btn:active { transform: scale(0.96); }

/* 录制中状态 */
.ctrl-btn.recording {
    background: #f44336 !important;
    border-color: #f44336 !important;
    color: #fff !important;
    animation: recordPulse 1s ease-in-out infinite;
}

@keyframes recordPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(244, 67, 54, 0.4); }
    50% { box-shadow: 0 0 0 10px rgba(244, 67, 54, 0); }
}

/* 探索面板生成按钮 */
.explore-gen-btn {
    height: 36px;
    padding: 0 20px;
    border-radius: 18px;
    background: var(--primary);
    border: none;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.explore-gen-btn:hover { background: var(--primary-hover); }
.explore-gen-btn:active { transform: scale(0.96); }

/* 试听按钮 - 圆形突出绿色 */
.ctrl-btn-listen {
    width: clamp(52px, 8vh, 68px) !important;
    height: clamp(52px, 8vh, 68px) !important;
    padding: 0 !important;
    border-radius: 50% !important;
    background: var(--success) !important;
    border-color: var(--success) !important;
    color: #fff !important;
    font-size: clamp(14px, 2vw, 18px) !important;
    font-weight: 700 !important;
    box-shadow: 0 4px 16px rgba(0, 180, 42, 0.4);
    flex-shrink: 0;
}

.ctrl-btn-listen:hover {
    background: var(--success-hover) !important;
    border-color: var(--success-hover) !important;
    transform: scale(1.06);
    box-shadow: 0 6px 24px rgba(0, 180, 42, 0.5);
}

/* 试听按钮 - 播放中脉动动画 */
.ctrl-btn-listen.playing {
    animation: listenPulse 1.5s ease-in-out infinite;
}

@keyframes listenPulse {
    0%, 100% { box-shadow: 0 4px 16px rgba(0, 180, 42, 0.4); }
    50% { box-shadow: 0 4px 32px rgba(0, 180, 42, 0.7); }
}

/* 试听按钮 - 静音态灰色 */
.ctrl-btn-listen.muted {
    background: var(--ctrl-bg) !important;
    border-color: var(--border) !important;
    color: var(--text-2) !important;
    box-shadow: none;
}

/* 音画生成按钮 - 草绿色大按钮 */
.generate-btn {
    background: #4CAF50 !important;
    border-color: #4CAF50 !important;
    color: #fff !important;
    font-size: 20px !important;
    font-weight: 700 !important;
    height: clamp(39px, 6vh, 54px) !important;
    padding: 0 clamp(24px, 4vw, 48px) !important;
    border-radius: 16px !important;
    letter-spacing: 2px;
    box-shadow: 0 4px 16px rgba(76, 175, 80, 0.4);
    transition: all 0.2s;
}
.generate-btn:hover {
    background: #66BB6A !important;
    border-color: #66BB6A !important;
    color: #fff !important;
    box-shadow: 0 6px 24px rgba(76, 175, 80, 0.5);
    transform: scale(1.03);
}
.generate-btn:active {
    background: #43A047 !important;
    transform: scale(0.97);
}

/* 创作和开发按钮 - 与音画生成同尺寸 */
#btnCreate, #btnDevelop {
    font-size: 20px !important;
    font-weight: 700 !important;
    height: clamp(39px, 6vh, 54px) !important;
    padding: 0 clamp(24px, 4vw, 48px) !important;
    border-radius: 16px !important;
    letter-spacing: 2px;
}

/* 主按钮 */
.btn-primary-lg {
    height: 52px;
    padding: 0 26px;
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.3px;
    box-shadow: 0 3px 12px rgba(22,93,255,0.3);
}

.btn-primary-lg:hover { background: var(--primary-hover); border-color: var(--primary-hover); color: #fff; box-shadow: 0 4px 16px rgba(22,93,255,0.4); }
.btn-primary-lg:active { transform: scale(0.96); }

/* 试听按钮 */
.listen-btn {
    width: 52px;
    height: 52px;
    padding: 0;
    border-radius: 50% !important;
    background: #22c55e;
    border-color: #22c55e;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.3px;
    box-shadow: 0 4px 16px rgba(34,197,94,0.45);
    justify-content: center;
}

.listen-active { background: var(--success) !important; border-color: var(--success) !important; box-shadow: 0 3px 12px rgba(0,180,42,0.35) !important; }
.listen-active:hover { background: var(--success-hover) !important; border-color: var(--success-hover) !important; }

/* 录制按钮 - 录制中状态 */
#btnRecord.recording {
    background: var(--primary) !important;
    border-color: var(--primary) !important;
    color: #fff !important;
}

/* ============ 底部提示 ============ */
.footer-tip {
    text-align: center;
    font-size: 12px;
    color: var(--text-2);
    padding: 5px 16px;
    background: var(--ctrl-bg);
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    letter-spacing: 0.3px;
}

/* ============ 探索面板 ============ */
.explore-wrapper {
    flex-shrink: 0;
    overflow: hidden;
    border-top: 1px solid transparent;
    transition: border-color 0.32s;
    background: #fafbfc;
}

.explore-wrapper.show { border-top-color: var(--border); }

.explore-panel {
    max-height: 0;
    overflow: hidden;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: max-height 0.32s cubic-bezier(0.4, 0, 0.2, 1), padding 0.32s;
}

.explore-panel.show {
    max-height: 300px;
    padding: 10px 20px;
    overflow-y: auto;
}

.explore-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.explore-row-2 { flex-wrap: wrap; }

.explore-row .explore-label {
    flex-shrink: 0;
    text-align: center;
}

.explore-row .code-input {
    flex: 1;
    min-width: 120px;
}

.explore-row .speed-control {
    flex: 1;
    min-width: 140px;
}

.explore-row .explore-select {
    flex-shrink: 0;
    min-width: 80px;
}

.explore-row .date-input {
    flex-shrink: 0;
    width: 110px;
    height: 30px;
    padding: 0 8px;
    border: 1.5px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    color: var(--text);
    background: var(--bg);
    cursor: pointer;
}

.explore-row .date-input:focus {
    outline: none;
    border-color: var(--primary);
}

.explore-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-2);
    letter-spacing: 0.5px;
    flex-shrink: 0;
    white-space: nowrap;
    /* 加框样式 */
    background: var(--ctrl-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2px 8px;
    margin-right: 6px;
}

.code-input {
    height: 38px;
    padding: 0 12px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    min-width: 200px;
    flex: 1;
    max-width: 320px;
}

.code-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22,93,255,0.1); }
.code-input::placeholder { color: #c5c8ce; font-weight: 400; }

/* 探索面板输入框 */
.explore-input {
    height: 34px;
    padding: 0 10px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
    outline: none;
    min-width: 100px;
    flex: 1;
    max-width: 200px;
}
.explore-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22,93,255,0.1); }
.explore-input::placeholder { color: #c5c8ce; font-weight: 400; }

.explore-date {
    height: 34px;
    padding: 0 8px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
    color: var(--text);
    font-size: 12px;
    font-weight: 500;
    outline: none;
    width: 130px;
}
.explore-date:focus { border-color: var(--primary); }

.speed-control {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
    /* 整体加框 */
    background: var(--ctrl-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 4px 10px;
}

.speed-slider {
    width: 90px;
    height: 4px;
    accent-color: var(--primary);
    cursor: pointer;
}

.speed-tag {
    font-size: 11px;
    color: var(--text-2);
    font-weight: 600;
    flex-shrink: 0;
    /* 加框样式 */
    background: var(--ctrl-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2px 6px;
}

.speed-val {
    color: var(--primary);
    min-width: 22px;
    text-align: center;
}

.explore-select {
    height: 38px;
    padding: 0 32px 0 10px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
    color: var(--text);
    font-size: 13px;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%234E5969' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    min-width: 110px;
    flex-shrink: 0;
}

.explore-select:focus { border-color: var(--primary); }
.explore-select option { color: var(--text); }

/* ============ 信息条 ============ */
.info-bar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
    background: linear-gradient(180deg, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.4) 70%, transparent 100%);
    padding: 12px 20px 24px;
    pointer-events: none;
}

.info-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 13px;
    color: #fff;
}

.stock-code {
    font-weight: 700;
    color: #FFD700;
}

.stock-price {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
}

.stock-change {
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 12px;
}

.stock-change.up {
    background: rgba(244, 67, 54, 0.3);
    color: #ff6b6b;
}

.stock-change.down {
    background: rgba(0, 180, 42, 0.3);
    color: #69db7c;
}

.stock-amount {
    font-size: 11px;
    opacity: 0.8;
}

.divider {
    opacity: 0.3;
    margin: 0 4px;
}

.music-item {
    font-size: 12px;
    opacity: 0.9;
}

.record-info {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    color: #ff6b6b;
}

.record-dot {
    font-size: 13px;
    animation: blink-dot 1s ease-in-out infinite;
}

@keyframes blink-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.record-label { font-weight: 600; }
.record-time { font-family: monospace; font-size: 12px; opacity: 0.9; }

/* ============ 弹窗 ============ */
.modal-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: stretch;
    justify-content: stretch;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s;
}

.modal-overlay.show { opacity: 1; pointer-events: all; }

.modal-card {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

.modal-creating-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 0;
}

.modal-bg {
    position: absolute;
    inset: 0;
    background-color: transparent;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

.modal-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 32px 48px;
    text-align: center;
    background: linear-gradient(to top, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.2) 60%, transparent 100%);
}

.modal-title { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 8px; text-shadow: 0 1px 4px rgba(0,0,0,0.6); }
.modal-desc { font-size: 14px; color: rgba(255,255,255,0.85); margin-bottom: 24px; line-height: 1.6; text-shadow: 0 1px 3px rgba(0,0,0,0.5); }
.modal-close {
    padding: 10px 36px;
    background: rgba(255,255,255,0.92);
    color: #222;
    border: none;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
    letter-spacing: 1px;
}
.modal-close:hover { background: #fff; transform: scale(1.04); }

/* ============ Toast ============ */
#toast {
    position: fixed;
    bottom: 90px;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: var(--text);
    color: #fff;
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    opacity: 0;
    transition: all 0.28s;
    pointer-events: none;
    z-index: 2000;
    white-space: pre-line;
    letter-spacing: 0.3px;
    max-width: 88vw;
    line-height: 1.5;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

@media (max-width: 768px) {
    #toast {
        padding: 8px 16px;
        font-size: 13px;
        border-radius: 8px;
        bottom: 80px;
    }
}

#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
#toast.fixed { pointer-events: all; white-space: pre-wrap; text-align: center; }

#toast .x-close {
    display: inline-block;
    margin-left: 16px;
    font-size: 26px;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    opacity: 0.95;
    vertical-align: middle;
    pointer-events: all;
    user-select: none;
    background: rgba(255,255,255,0.25);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    text-align: center;
    line-height: 32px;
    color: #fff;
    transition: background 0.2s;
}

#toast .x-close:hover { background: rgba(255,255,255,0.45); opacity: 1; }

#toast.error-toast {
    background: #D93030;
    font-size: 19px;
    font-weight: 600;
    border: 2.5px solid rgba(255,255,255,0.7);
    animation: errorPulse 2s ease-in-out infinite;
}

@keyframes errorPulse {
    0%, 100% { box-shadow: 0 6px 30px rgba(213,48,48,0.35); }
    50% { box-shadow: 0 6px 40px rgba(213,48,48,0.65), 0 0 0 6px rgba(213,48,48,0.12); }
}

#toast.error-toast .x-close {
    background: rgba(255,255,255,0.3);
    width: 34px;
    height: 34px;
    font-size: 28px;
    line-height: 34px;
}

/* ============ Loading ============ */
#loadingOverlay {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

#loadingOverlay.show { opacity: 1; pointer-events: all; }

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ============ 响应式 ============ */
@media (max-width: 768px) {
    .topbar { padding: 0 12px; }
    .brand-name { font-size: 14px; }
    .controlbar { gap: 8px; padding: 6px 10px; }
    .ctrl-btn { height: clamp(28px, 4.5vh, 36px); padding: 0 8px; font-size: 12px; }
    .generate-btn { height: clamp(32px, 6.5vw, 44px) !important; font-size: 15px !important; padding: 0 14px !important; }
    #btnCreate, #btnDevelop { height: clamp(32px, 6.5vw, 44px) !important; font-size: 15px !important; padding: 0 14px !important; }
    .btn-primary-lg { height: 46px; padding: 0 20px; font-size: 13px; }
    .listen-btn { height: 52px; width: 52px; padding: 0; font-size: 12px; border-radius: 50% !important; }
    .explore-panel { gap: 6px; }
    .explore-row { gap: 4px; flex-wrap: wrap; }
    .explore-row .explore-label { min-width: 28px; text-align: center; }
    .explore-row .explore-select { min-width: 70px; }
    .explore-row .code-input { min-width: 100px; }
    .explore-row .speed-control { min-width: 110px; }
    .explore-row .date-input { width: 90px; }
    .speed-slider { width: 65px; }
    .info-bar { padding: 8px 12px 20px; }
    .info-row { gap: 8px; font-size: 11px; }
    .stock-price { font-size: 13px; }
    .music-item { font-size: 10px; }
}

@media (max-width: 480px) {
    .controlbar { gap: 5px; }
    .explore-row { gap: 4px; }
    .explore-row-2 { justify-content: flex-start; }
    .explore-row .code-input { min-width: 80px; max-width: 100%; flex: 1; }
    .explore-row .speed-control { min-width: 100px; }
}