/* ========== 全局重置 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    width: 100%;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    overflow: hidden;
    background-color: #1a1a1a;
    color: #ffffff;
}

/* ========== 视图显隐基础 ========== */
.view {
    height: 100vh;
    height: calc(var(--vh, 1vh) * 100);
    width: 100vw;
    display: flex;
    flex-direction: column;
}

.view[hidden] {
    display: none !important;
}

/* ========== 主题色变量 ========== */
:root {
    --primary: #4ecdc4;
    --primary-dark: #3dbdb6;
    --bg-main: #1a1a1a;
    --bg-panel: #2d2d2d;
    --bg-card: #3d3d3d;
    --border: #444;
    --text-main: #ffffff;
    --text-muted: #ccc;
    --text-dim: #888;
}

/* ========== 编辑视图 - 通用 ========== */
.view-edit {
    background-color: var(--bg-main);
}

.edit-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px;
    background-color: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.edit-header h1 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 1px;
}

.header-buttons {
    display: flex;
    gap: 8px;
    align-items: center;
}

.upload-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--primary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
}

.upload-btn:hover {
    background-color: rgba(78, 205, 196, 0.15);
    border-color: var(--primary);
}

.upload-btn:active {
    transform: scale(0.97);
}

.upload-btn svg {
    width: 16px;
    height: 16px;
}

/* ========== 编辑视图 - 主体内容 ========== */
.edit-body {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 320px 1fr;
    gap: 20px;
    padding: 20px 24px;
    overflow: hidden;
    min-height: 0;
}

.script-input-area {
    display: flex;
    flex-direction: column;
    min-height: 0;
    background-color: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
}

.script-input-area label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

.char-count {
    font-size: 12px;
    color: var(--text-dim);
    font-weight: 400;
}

.script-input-area textarea {
    flex: 1;
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background-color: var(--bg-main);
    color: var(--text-main);
    font-size: 14px;
    line-height: 1.7;
    resize: none;
    font-family: inherit;
    min-height: 120px;
    transition: border-color 0.2s;
}

.script-input-area textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.1);
}

.file-hint {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-dim);
}

/* ========== 设置卡片 ========== */
.settings-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow-y: auto;
    min-height: 0;
}

.setting-card {
    background-color: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    transition: border-color 0.2s;
}

.setting-card:hover {
    border-color: rgba(78, 205, 196, 0.3);
}

.setting-title {
    font-size: 13px;
    color: var(--primary);
    margin-bottom: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.setting-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.setting-row input[type="range"] {
    flex: 1;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background-color: var(--border);
    border-radius: 2px;
    cursor: pointer;
    background-image: linear-gradient(to right, var(--primary) 0%, var(--primary) 0%, var(--border) 0%, var(--border) 100%);
    transition: background-image 0.1s;
}

.setting-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background-color: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 6px rgba(78, 205, 196, 0.4);
}

.setting-row input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 2px 10px rgba(78, 205, 196, 0.6);
}

.setting-row input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background-color: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(78, 205, 196, 0.4);
}

.setting-value {
    font-size: 14px;
    color: var(--primary);
    min-width: 60px;
    text-align: right;
}

.setting-value-with-unit {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.setting-value-with-unit input[type="number"] {
    width: 56px;
    height: 26px;
    padding: 0 6px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background-color: var(--bg-main);
    color: var(--text-main);
    font-size: 13px;
    text-align: center;
    -moz-appearance: textfield;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.setting-value-with-unit input[type="number"]::-webkit-inner-spin-button,
.setting-value-with-unit input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.setting-value-with-unit input[type="number"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(78, 205, 196, 0.15);
}

.unit-text {
    font-size: 11px;
    color: var(--text-dim);
    white-space: nowrap;
}

.preset-speeds {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin-top: 12px;
}

.preset-speeds button {
    padding: 6px 4px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background-color: var(--bg-card);
    color: var(--text-muted);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
}

.preset-speeds button:hover {
    background-color: rgba(78, 205, 196, 0.15);
    color: var(--primary);
    border-color: var(--primary);
}

.preset-speeds button:active {
    transform: scale(0.96);
}

/* ========== 开关控件 ========== */
.toggle-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.toggle-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.toggle-label {
    font-size: 14px;
    color: var(--text-main);
    font-weight: 500;
}

.toggle-desc {
    font-size: 11px;
    color: var(--text-dim);
}

.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border);
    transition: .3s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

input:checked + .slider {
    background-color: var(--primary);
}

input:checked + .slider:before {
    transform: translateX(20px);
}

/* ========== 预览区域 ========== */
.preview-section {
    display: flex;
    flex-direction: column;
    min-height: 0;
    background-color: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
}

.preview-title {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 10px;
    font-weight: 500;
}

.preview-container {
    flex: 1;
    background-color: #000;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    min-height: 200px;
}

.preview-container::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(78, 205, 196, 0.5), transparent);
    transform: translateY(-50%);
    pointer-events: none;
    z-index: 2;
}

.preview-content {
    flex: 1;
    padding: 20px 6%;
    text-align: center;
    line-height: 2.2;
    color: #ffffff;
    font-size: 28px;
    transition: font-size 0.2s, color 0.2s;
    font-weight: 500;
    letter-spacing: 1px;
    overflow-y: auto;
}

.preview-content p {
    margin-bottom: 24px;
    white-space: pre-wrap;
}

/* ========== 颜色设置 ========== */
.color-row {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.color-picker {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
}

.color-picker label {
    font-size: 12px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.color-picker input[type="color"] {
    flex: 1;
    height: 28px;
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    background-color: transparent;
    padding: 2px;
}

.color-picker input[type="color"]:hover {
    border-color: var(--primary);
}

.preset-colors {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
}

.preset-colors button {
    padding: 7px 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background-color: var(--bg-card);
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
}

.preset-colors button:hover {
    background-color: rgba(78, 205, 196, 0.15);
    color: var(--primary);
    border-color: var(--primary);
}

.preset-colors button:active {
    transform: scale(0.97);
}

/* ========== 编辑视图 - 底部 ========== */
.edit-footer {
    padding: 14px 24px;
    background-color: var(--bg-panel);
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

.start-play-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px;
    border: none;
    border-radius: 10px;
    background-color: var(--primary);
    color: var(--bg-main);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(78, 205, 196, 0.3);
}

.start-play-btn:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(78, 205, 196, 0.4);
    transform: translateY(-1px);
}

.start-play-btn:active {
    transform: translateY(0);
}

.start-play-btn svg {
    width: 18px;
    height: 18px;
}

/* ========== 播放视图 ========== */
.view-play {
    position: relative;
    background-color: #000;
}

.play-top-bar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: linear-gradient(to bottom, rgba(0,0,0,0.7), transparent);
    z-index: 50;
    transition: opacity 0.3s, transform 0.3s;
}

.play-top-bar.hidden {
    opacity: 0;
    transform: translateY(-100%);
    pointer-events: none;
}

.exit-btn, .fullscreen-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: 1px solid rgba(78, 205, 196, 0.4);
    border-radius: 6px;
    background-color: rgba(0, 0, 0, 0.5);
    color: var(--primary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s;
    backdrop-filter: blur(8px);
}

.exit-btn:hover, .fullscreen-btn:hover {
    background-color: rgba(78, 205, 196, 0.2);
    border-color: var(--primary);
}

.exit-btn svg, .fullscreen-btn svg {
    width: 18px;
    height: 18px;
}

/* ========== 提词显示区 ========== */
.teleprompter-display {
    flex: 1;
    position: relative;
    overflow: hidden;
    background-color: #000000;
    display: flex;
    flex-direction: column;
}

.top-mask {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 20%;
    background: linear-gradient(to bottom,
        rgba(0, 0, 0, 0.8) 0%,
        rgba(0, 0, 0, 0.4) 50%,
        rgba(0, 0, 0, 0) 100%);
    pointer-events: none;
    z-index: 20;
}

.bottom-mask {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 20%;
    background: linear-gradient(to top,
        rgba(0, 0, 0, 0.8) 0%,
        rgba(0, 0, 0, 0.4) 50%,
        rgba(0, 0, 0, 0) 100%);
    pointer-events: none;
    z-index: 20;
}

.highlight-line {
    position: absolute;
    top: 50%;
    left: 5%;
    right: 5%;
    height: 3px;
    background-color: rgba(78, 205, 196, 0.8);
    transform: translateY(-50%);
    z-index: 10;
    border-radius: 2px;
}

.highlight-line::before {
    content: '';
    position: absolute;
    top: -80px;
    left: 0;
    right: 0;
    height: 160px;
    background: linear-gradient(to bottom,
        transparent 0%,
        rgba(78, 205, 196, 0.02) 10%,
        rgba(78, 205, 196, 0.05) 30%,
        rgba(78, 205, 196, 0.08) 50%,
        rgba(78, 205, 196, 0.05) 70%,
        rgba(78, 205, 196, 0.02) 90%,
        transparent 100%);
    pointer-events: none;
}

.highlight-line::after {
    content: '';
    position: absolute;
    top: -100px;
    left: 0;
    right: 0;
    height: 200px;
    border-top: 1px solid rgba(78, 205, 196, 0.15);
    border-bottom: 1px solid rgba(78, 205, 196, 0.15);
    pointer-events: none;
}

.script-content {
    padding: 40px 8%;
    text-align: center;
    line-height: 2.2;
    color: #ffffff;
    font-size: 48px;
    transition: font-size 0.3s, color 0.3s;
    font-weight: 500;
    letter-spacing: 2px;
    will-change: transform;
}

.script-content p {
    margin-bottom: 45px;
    white-space: pre-wrap;
    transition: opacity 0.3s, transform 0.3s;
    opacity: 0.5;
}

.script-content p.current-paragraph {
    opacity: 1;
}

.script-content p.pause-mark {
    display: inline;
}

.pause-mark {
    display: inline;
}

.search-highlight {
    background-color: #ffff00;
    color: #000;
    padding: 1px 3px;
    border-radius: 3px;
}

.search-row {
    display: flex;
    gap: 6px;
    margin-top: 8px;
    margin-bottom: 8px;
}

.search-input {
    flex: 1;
    height: 30px;
    padding: 0 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background-color: var(--bg-main);
    color: var(--text-main);
    font-size: 13px;
    transition: border-color 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(78, 205, 196, 0.15);
}

.search-btn, .clear-btn {
    padding: 0 12px;
    height: 30px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background-color: var(--bg-card);
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.search-btn:hover {
    background-color: rgba(78, 205, 196, 0.15);
    color: var(--primary);
    border-color: var(--primary);
}

.clear-btn:hover {
    background-color: rgba(231, 76, 60, 0.15);
    color: #e74c3c;
    border-color: #e74c3c;
}

/* ========== 浮动控制条 - 桌面端 ========== */
.floating-controls {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(0, 0, 0, 0.8);
    padding: 8px 12px;
    border-radius: 50px;
    z-index: 100;
    backdrop-filter: blur(12px);
    border: 1px solid rgba(78, 205, 196, 0.2);
    transition: opacity 0.3s, transform 0.3s, visibility 0.3s;
}

.floating-controls.hidden {
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(20px);
    pointer-events: none;
}

.controls-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.float-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 7px 12px;
    border: none;
    border-radius: 50px;
    background-color: rgba(78, 205, 196, 0.9);
    color: var(--bg-main);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.float-btn:hover {
    background-color: var(--primary);
    transform: scale(1.05);
}

.float-btn.reset-btn {
    background-color: rgba(231, 76, 60, 0.9);
    color: #fff;
}

.float-btn.reset-btn:hover {
    background-color: #e74c3c;
}

.float-btn.speed-btn {
    background-color: rgba(155, 89, 182, 0.9);
    color: #fff;
}

.float-btn.speed-btn:hover {
    background-color: #9b59b6;
}

.btn-divider {
    width: 1px;
    height: 24px;
    background-color: rgba(255, 255, 255, 0.15);
    margin: 0 4px;
}

.shortcut-hint {
    display: flex;
    gap: 10px;
    padding: 0 10px;
    border-left: 1px solid rgba(255, 255, 255, 0.15);
}

.shortcut-hint span {
    font-size: 11px;
    color: var(--text-dim);
    white-space: nowrap;
}

.float-btn svg {
    width: 16px;
    height: 16px;
}

.float-progress {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 4px;
}

.float-progress input[type="range"] {
    width: 180px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    cursor: pointer;
}

.float-progress input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
}

.float-progress input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.float-progress span {
    color: var(--primary);
    font-size: 13px;
    min-width: 45px;
    text-align: right;
}

/* ========== 响应式 - 平板 (768-1024px) ========== */
@media (max-width: 1024px) {
    .edit-header {
        padding: 14px 20px;
    }

    .edit-body {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto;
        gap: 16px;
        padding: 16px 20px;
        overflow-y: auto;
    }

    .script-input-area {
        grid-column: 1 / 2;
        grid-row: 1 / 3;
        min-height: 400px;
    }

    .settings-grid {
        grid-column: 2 / 3;
        grid-row: 1 / 2;
        overflow-y: visible;
    }

    .preview-section {
        grid-column: 2 / 3;
        grid-row: 2 / 3;
        min-height: 250px;
    }

    .script-input-area textarea {
        min-height: 300px;
    }

    .edit-footer {
        padding: 12px 20px;
    }

    .floating-controls {
        bottom: 20px;
    }

    .float-progress input[type="range"] {
        width: 150px;
    }
}

/* ========== 响应式 - 手机 (<768px) ========== */
@media (max-width: 768px) {
    .edit-header {
        padding: 12px 16px;
    }

    .edit-header h1 {
        font-size: 18px;
    }

    .upload-btn {
        padding: 6px 10px;
        font-size: 12px;
    }

    .upload-btn svg {
        width: 14px;
        height: 14px;
    }

    .edit-body {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        padding: 12px;
        gap: 12px;
        overflow-y: auto;
    }

    .script-input-area {
        grid-column: 1 / 2;
        grid-row: auto;
        min-height: auto;
    }

    .settings-grid {
        grid-column: 1 / 2;
        grid-row: auto;
        overflow-y: visible;
        min-height: auto;
    }

    .preview-section {
        grid-column: 1 / 2;
        grid-row: auto;
        min-height: 200px;
    }

    .script-input-area textarea {
        min-height: 180px;
        font-size: 14px;
        padding: 10px;
    }

    .setting-card {
        padding: 12px;
    }

    .preview-content {
        font-size: 22px;
        padding: 16px 5%;
        line-height: 2;
    }

    .preset-speeds {
        gap: 5px;
    }

    .preset-speeds button {
        padding: 5px 3px;
        font-size: 10px;
    }

    .preset-colors button {
        padding: 6px 6px;
        font-size: 11px;
    }

    .setting-value {
        font-size: 13px;
        min-width: 50px;
    }

    .setting-value-with-unit input[type="number"] {
        width: 48px;
        height: 24px;
        font-size: 12px;
    }

    .edit-footer {
        padding: 10px 16px;
        padding-bottom: calc(10px + env(safe-area-inset-bottom));
    }

    .start-play-btn {
        padding: 11px;
        font-size: 14px;
    }

    /* 手机端播放视图 */
    .play-top-bar {
        padding: 10px 14px;
    }

    .exit-btn, .fullscreen-btn {
        padding: 6px 10px;
        font-size: 12px;
    }

    .exit-btn span, .fullscreen-btn span {
        display: none;
    }

    .exit-btn svg, .fullscreen-btn svg {
        width: 20px;
        height: 20px;
    }

    /* 手机端字体显示优化 */
    .script-content {
        font-size: 28px;
        padding: 24px 6%;
        line-height: 1.8;
        letter-spacing: 1px;
    }

    .script-content p {
        margin-bottom: 28px;
    }

    .top-mask,
    .bottom-mask {
        height: 15%;
    }

    .highlight-line::after {
        top: -60px;
        height: 120px;
    }

    .highlight-line::before {
        top: -50px;
        height: 100px;
    }

    /* 手机端浮动控制条：贴底抽屉式 */
    .floating-controls {
        bottom: 0;
        left: 0;
        right: 0;
        transform: none;
        border-radius: 16px 16px 0 0;
        padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
        flex-wrap: wrap;
        justify-content: center;
        border-left: none;
        border-right: none;
        border-bottom: none;
        gap: 10px;
    }

    .floating-controls.hidden {
        transform: translateY(100%);
    }

    .controls-group {
        gap: 10px;
    }

    .btn-divider {
        display: none;
    }

    .float-btn {
        padding: 10px 16px;
        font-size: 14px;
    }

    .float-btn span {
        display: inline;
    }

    .float-progress {
        width: 100%;
        padding: 8px 0 0;
        justify-content: center;
        order: 3;
    }

    .float-progress input[type="range"] {
        flex: 1;
        width: auto;
        max-width: 280px;
    }

    .float-btn.speed-btn {
        margin-top: 0;
    }

    .shortcut-hint {
        display: none;
    }
}

/* ========== 响应式 - 大屏优化的显示区 ========== */
@media (min-width: 1600px) {
    .edit-body {
        grid-template-columns: 1fr 420px;
        padding: 32px 48px;
    }

    .edit-header {
        padding: 24px 48px;
    }

    .edit-footer {
        padding: 20px 48px;
    }
}