/* ========== 颜色与字体变量 ========== */
:root {
    --bg: #fff6f9;
    --background-color: rgba(255, 253, 247, 0.85);
    --surface: #ffeeF5;
    --paper: #f9f3e3;
    --primary: #d97ea8;
    --primary-dark: #8f5b6a;
    --primary-light: rgba(255, 253, 247, 0.85);
    --accent: #d97ea8;
    --danger: #b4503a;
    --text: #4e2b36;
    --text-light: #8a7765;
    --border: #f3d3e0;
    --textarea-background-color: #fffdf9;
    --footer-background-color:#8f5b6a;
    --progress-bar:#d97ea8;
    --progress-info-color:#d97ea8;
    --progress-bar-background:#f3d3e0;
    --highlight-background: linear-gradient(90deg, #fff3cd, #ffe9a8);
    --shadow-sm: 0 14px 32px rgba(217, 126, 168, 0.06);
    --shadow-md: 0 14px 32px rgba(217, 126, 168, 0.10);
    --shadow-lg: 0 14px 32px rgba(217, 126, 168, 0.18);
    --radius: 14px;
    --radius-lg: 22px;
    --font-title: 'KaiTi', 'Microsoft YaHei', cursive;
    --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* dark Theme */
[data-theme="dark"] {
    --bg: #1e293b;/* */
    --background-color: rgba(15, 23, 42, 0.92);
    --surface: rgba(15, 23, 42, 0.92);
    --paper: #1e1b4b;
    --primary: #64748b;/* */
    --primary-dark: rgba(15, 23, 42, 0.92);
    --primary-light: #1e293b;
    --accent: #e2e8f0;
    --danger: rgba(15, 23, 42, 0.92);
    --text: #64748b;
    --text-light: #64748b;
    --border: #64748b;
    --textarea-background-color: #1e293b;
    --footer-background-color: #1e1b4b;
    --progress-bar:linear-gradient(90deg, #3498db, #2980b9);
    --progress-info-color:#7f8c8d;
    --progress-bar-background:#ecf0f1;
    --highlight-background: linear-gradient(90deg, #3498db, #2980b9);
    --shadow-sm: 0 8px 24px rgba(2, 6, 23, 0.06);
    --shadow-md: 0 8px 24px rgba(2, 6, 23, 0.10);
    --shadow-lg: 0 8px 24px rgba(2, 6, 23, 0.18);
    --radius: 14px;
    --radius-lg: 22px;
    --font-title: 'KaiTi', 'Microsoft YaHei', cursive;
    --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    min-height: 100vh;
    background-color: var(--bg);
    background-image:
        radial-gradient(circle at 10% 30%, rgba(160, 120, 80, .05) 0%, transparent 40%),
        radial-gradient(circle at 70% 80%, rgba(160, 120, 80, .04) 0%, transparent 50%);
    -webkit-font-smoothing: antialiased;
}

.bg-pattern {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: .35;
    background-image: repeating-linear-gradient(45deg,
            rgba(155, 115, 70, .02) 0px,
            rgba(155, 115, 70, .02) 1px,
            transparent 1px,
            transparent 14px);
}

.container {
    width: min(1280px, 100%);
    margin-inline: auto;
    padding-inline: 24px;
}

/* ========== 头部 ==========position: sticky; */
.site-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: var(--background-color);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-block: 12px;
    flex-wrap: wrap;
}

.logo {
    font-family: var(--font-title);
    font-size: 28px;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
    font-weight: 500;
}

.logo i {
    font-size: 34px;
    color: var(--accent);
}

.site-nav ul {
    display: flex;
    list-style: none;
    gap: 4px;
    flex-wrap: wrap;
}

.site-nav a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 30px;
    color: var(--text);
    text-decoration: none;
    transition: all .25s;
    font-size: 14px;
    font-weight: 500;
}

.site-nav a:hover,
.site-nav a.active {
    background: var(--primary);
    color: #fff;
}

.settings-btn {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 50%;
    background: var(--surface);
    color: var(--text);
    font-size: 18px;
    cursor: pointer;
    transition: all .25s;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.settings-btn:hover {
    background: var(--primary);
    color: #fff;
}

/* ========== 欢迎区 ========== */
.hero {
    text-align: center;
    padding: 70px 20px 40px;
}

.hero-slogan {
    color: var(--accent);
    font-size: 16px;
    margin-bottom: 14px;
    opacity: .8;
}

.hero h1 {
    font-family: var(--font-title);
    font-size: clamp(32px, 6vw, 56px);
    font-weight: 500;
    letter-spacing: 6px;
    color: var(--text);
}

/* ========== 工作区 ========== */
.workspace {
    padding: 20px 0 48px;
}

.workspace-grid {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 28px;
    align-items: start;
}

/* ========== 表单卡片 ========== */
.form-card,
.side-panel .stat-card,
.tip-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(210, 185, 155, .4);
    padding: 28px 30px;
    transition: box-shadow .3s;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 18px;
    border-bottom: 2px dashed var(--border);
    padding-bottom: 12px;
}

.card-header i {
    font-size: 24px;
    color: var(--accent);
}

.card-header.small h3 {
    font-size: 16px;
    margin-bottom: 0;
    color: var(--text-light);
}

.doc-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group label i {
    color: var(--accent);
}

.form-group label em {
    color: var(--danger);
    font-style: normal;
    margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: inherit;
    font-size: 1rem;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--textarea-background-color);
    width: 100%;
    transition: border-color .2s, box-shadow .2s;
    color: var(--text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(200, 130, 46, .15);
}

.form-group textarea {
    resize: vertical;
    min-height: 320px;
}

.form-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 4px;
}

.progress-info {
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--progress-info-color);
}

.progress-bar-container {
  height: 6px;
  background: var(--progress-bar-background);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 6px;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: var(--progress-bar);
  transition: width 0.3s ease;
}

.cardForm {
    display:block;
}
.cardForm.hidden {
    display: none;
}

.progressForm {
    display:block;
}
.progressForm.hidden {
    display: none;
}

.reader {
    font-family: inherit;
    font-size: 1rem;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--textarea-background-color);
    width: 100%;
    transition: border-color .2s, box-shadow .2s;
    color: var(--text);
    resize: vertical;
    height: 500px; 
    max-height: 500px;
    overflow-y: auto;
    display: block;
}
.reader .unit {
    display: block;
    cursor: pointer;
    padding: 3px 10px;
    border-radius: 8px;
    margin-bottom: 2px;
    transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
    white-space: pre-wrap;
    word-break: break-word;
}

.reader .unit:hover {
    background: #f0f0f0;
}

.reader .unit.highlight {
    background: var(--highlight-background);
    box-shadow: 0 2px 10px rgba(255, 183, 0, 0.25);
    transform: translateX(4px);
    font-weight: 600;
    color: var(--danger);
}
.reader.hidden {
    display: none;
}
.btn-primary,
.btn-reset,
.btn-clear {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    transition: all .25s;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(156, 106, 60, .25);
    flex: 1;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(156, 106, 60, .3);
}

.btn-reset {
    background: #eee6dc;
    color: var(--text);
}

.btn-reset:hover {
    background: #dfd3c2;
}

/* ========== 侧边栏 ========== */
.side-panel {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.stat-card {
    min-height: 260px;
    display: flex;
    flex-direction: column;
}

.stat-chart {
    flex: 1;
    min-height: 210px;
}

.tip-card {
    border: 2px dashed var(--border);
    background: var(--paper);
    box-shadow: none;
    padding: 18px 20px;
    font-size: 14px;
    color: var(--text-light);
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.tip-card i {
    color: var(--accent);
    font-size: 20px;
}

/* 控制面板 */
.control-item {
    margin-bottom: 20px;
}

.control-item label {
    display: flex;
    gap: 8px;
    align-items: center;
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 8px;
    color: var(--text);
}

.value-badge {
    margin-left: auto;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 20px;
    padding: 2px 12px;
    font-size: 0.8rem;
}

.custom-select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: #fafbfc;
    font-size: 0.9rem;
    color: var(--text);
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    cursor: pointer;
}

.custom-select:focus {
    border-color: var(--primary);
}

/* 滑块 */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 4px;
    background: var(--border);
    outline: none;
    margin: 8px 0;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.4);
    cursor: pointer;
    transition: transform 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.4);
    cursor: pointer;
}

/* 播放控制 */
.playback-controls {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin: 16px 0;
}

.play-btn {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 1.6rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.play-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 32px rgba(37, 99, 235, 0.5);
}

.play-btn:active {
    transform: scale(0.95);
}

.play-btn.playing {
    background: linear-gradient(135deg, #22c55e, #16a34a);
    box-shadow: 0 8px 24px rgba(34, 197, 94, 0.4);
}

.ctrl-btn {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.ctrl-btn:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
}

.phase-tip {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* ========== 文档库工具栏 ========== */
.doc-section {
    padding: 10px 0 48px;
}

.toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: var(--surface);
    padding: 16px 24px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
}

.toolbar-left,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.tool-filter,
.tool-search {
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-light);
}

.toolbar select,
.toolbar input[type='search'] {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    font-size: 14px;
    color: var(--text);
    font-family: inherit;
}

.toolbar select:focus,
.toolbar input[type='search']:focus {
    outline: none;
    border-color: var(--accent);
}

.toolbar input[type='search'] {
    width: 200px;
}

.count-badge {
    background: var(--accent);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 30px;
}

.clear-clear,
.btn-clear {
    background: transparent;
    border: 1px solid #e3cfb0;
    color: var(--text-light);
    transition: all .25s;
}

.clear-btn:hover {
    border-color: var(--danger);
    color: var(--danger);
    background: rgba(180, 80, 58, .05);
}

.clear-clear,
.btn-clear {
    padding: 8px 16px;
    font-size: 14px;
    border-radius: 20px;
    cursor: pointer;
}

/* ============ 文档卡片 ============ */
.doc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 22px;
}

.doc-card {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: 20px 22px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: transform .25s, box-shadow .25s;
    animation: fade-in .4s ease-out both;
}

.doc-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.doc-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-light);
}

.type-tag {
    background: rgba(200, 130, 46, .13);
    color: var(--accent);
    font-weight: 500;
    padding: 3px 12px;
    border-radius: 20px;
}

.doc-card h3 {
    font-size: 19px;
    font-family: var(--font-title);
    font-weight: 500;
    color: var(--text);
}

.doc-desc {
    font-size: 14px;
    color: var(--text);
    min-height: 42px;
    opacity: .8;
    word-break: break-word;
}

.doc-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: auto;
}

.btn-edit,
.btn-delete {
    padding: 6px 14px;
    font-size: 13px;
    border-radius: 20px;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: inherit;
    transition: filter .2s;
}

.btn-edit {
    background: #f0e6d6;
    color: var(--primary);
}

.btn-edit:hover {
    background: var(--primary);
    color: #fff;
}

.btn-delete {
    background: #fae8e1;
    color: var(--danger);
}

.btn-delete:hover {
    background: var(--danger);
    color: #fff;
}

/* 空态 */
.empty-state {
    text-align: center;
    padding: 70px 20px;
    color: var(--text-light);
    opacity: .7;
}

.empty-state i {
    font-size: 46px;
    margin-bottom: 20px;
    color: var(--border);
}

.empty-state p {
    font-size: 16px;
}

.empty-state.hidden {
    display: none;
}

/* ========== 关于 ========== */
.about-section {
    background: var(--surface);
    border-block: 1px solid var(--border);
    padding: 50px 0;
}

.about-section .container h2 {
    font-family: var(--font-title);
    font-size: 26px;
    color: var(--primary);
    margin-bottom: 10px;
}

.about-section p {
    color: var(--text-light);
    max-width: 560px;
}

/* ========== 页脚 ========== */
.site-footer {
    background: var(--footer-background-color);
    color: rgba(255, 255, 255, .55);
    padding: 22px 0;
    text-align: center;
    font-size: 14px;
}

.site-footer p {
    line-height: 2;
}

.site-footer .fa-heart {
    color: #c05b58;
}

.site-footer .fa-code {
    color: #f0b04a;
}

/* ========== 主题切换按钮 ========== */
.theme-toggle {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 50%;
    background: var(--surface);
    color: var(--text);
    font-size: 18px;
    cursor: pointer;
    transition: all .25s;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-icon {
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: all 0.3s ease;
    left: 1px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    margin: 0;
}

[data-theme="dark"] .theme-toggle .theme-icon {
    left: 25px;
    background: #2c2c2c;
    color: white;
}

.theme-toggle:hover .theme-icon {
    transform: rotate(180deg);
}

/* ========== 模态框 ========== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(40, 30, 20, .5);
    backdrop-filter: blur(4px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s, visibility .3s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    max-width: 420px;
    width: calc(100% - 40px);
    padding: 24px;
    box-shadow: var(--shadow-lg);
    transform: scale(.92);
    transition: transform .3s;
}

.modal-overlay.active .modal-card {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}

.modal-header h3 {
    font-size: 18px;
    color: var(--text);
    display: flex;
    gap: 8px;
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-light);
    line-height: 1;
    padding: 0 4px;
}

.modal-close:hover {
    color: var(--danger);
}

.modal-body {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn-small {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent);
    color: #fff;
    padding: 8px 18px;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    border: none;
    font-family: inherit;
    transition: background .2s;
    text-decoration: none;
}

.btn-small:hover {
    background: var(--primary);
}

.btn-small.danger {
    background: var(--danger);
    color: #fff;
}

.btn-small.danger:hover {
    background: #94442f;
}

.btn-file {
    background: var(--primary);
}

.modal-tip {
    font-size: 13px;
    margin-top: 14px;
    color: var(--text-light);
}

/* ========== Toast ========== */
.toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translate(-50%, 100px);
    background: var(--text);
    color: #fff;
    padding: 12px 26px;
    border-radius: 40px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transition: all .45s cubic-bezier(.22, .9, .3, 1);
    z-index: 300;
    pointer-events: none;
}

.toast.show {
    transform: translate(-50%, 0);
    opacity: 1;
    pointer-events: none;
}

.toast .fa-check-circle {
    color: #5ed896;
}

.toast .fa-triangle-exclamation {
    color: #f3b944;
}

/* ========== 响应式 ========== */
@media (max-width: 992px) {
    .workspace-grid {
        grid-template-columns: 1fr;
    }

    .side-panel {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .side-panel .stat-card {
        flex: 1 1 260px;
    }

    .tip-card {
        flex: 1 1 260px;
    }
}

@media (max-width: 768px) {
    .container {
        padding-inline: 16px;
    }

    .header-inner {
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        padding-top: 40px;
        padding-bottom: 24px;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .toolbar-left,
    .toolbar-right {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }
}

/* 卡片入场动画 */
@keyframes fade-in {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}