/* Slate 色系定义 */
:root {
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --white: #ffffff;
  --red-400: #f87171;
  --red-500: #ef4444;
  --green-400: #4ade80;
  --amber-500: #f59e0b;
  --amber-600: #d97706;
}

/* CSS 变量定义 - 浅色模式（默认） */
:root {
  /* 浅色模式为默认 */
  --bg-primary: #ffffff;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f9fafb;
  --bg-start: #ffffff;
  --bg-end: #f9fafb;
  --panel-bg: rgba(255, 255, 255, 0.98);
  --text-primary: #0f172a;
  --text-secondary: #1e293b;
  --text-muted: #475569;
  --accent-gold: #d97706;
  --accent-blue: #3b82f6;
  --separator-teal: rgba(209, 213, 219, 0.4);
  --border-color: #d1d5db;
  --border-color-light: #fcd34d;
  --input-bg: #f9fafb;
  --input-border: #d1d5db;
  --card-shadow: rgba(0, 0, 0, 0.1);
  --button-bg: transparent;
  --button-border: #f59e0b;
  --button-text: #d97706;
  --button-hover-bg: rgba(245, 158, 11, 0.1);
  --button-hover-border: #d97706;
  --success: #10b981;
  --error: #ef4444;
  --border-radius: 12px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* 深色模式 */
html[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: rgba(30, 41, 59, 0.95);
  --bg-tertiary: rgba(51, 65, 85, 0.5);
  --bg-start: rgb(15, 25, 40);
  --bg-end: rgb(30, 45, 65);
  --panel-bg: rgba(25, 35, 55, 0.85);
  --text-primary: #ffffff;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --accent-gold: #FFDF96;
  --accent-blue: #87CEFA;
  --separator-teal: rgba(0, 128, 128, 0.5);
  --border-color: rgba(148, 163, 184, 0.1);
  --border-color-light: rgba(148, 163, 184, 0.2);
  --input-bg: rgba(51, 65, 85, 0.5);
  --input-border: rgba(71, 85, 105, 1);
  --card-shadow: rgba(0, 0, 0, 0.3);
  --button-bg: rgba(51, 65, 85, 0.7);
  --button-hover-bg: rgba(71, 85, 105, 0.9);
  --success: #28a745;
  --error: #dc3545;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: var(--font-family);
    background-image: linear-gradient(135deg, var(--bg-start), var(--bg-end));
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 1rem;
    transition: background-color 0.3s ease, color 0.3s ease;
}
.container {
    width: 100%;
    max-width: 900px;
    background: var(--panel-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    box-shadow: 0 4px 12px var(--card-shadow);
    border: 1px solid var(--border-color);
}

/* 导航栏样式 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--separator-teal);
    position: relative;
}

.nav-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.navbar .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-version {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 400;
    opacity: 0.8;
}

/* 导航栏右侧容器 */
.navbar-right {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

/* 汉堡菜单按钮 - 默认隐藏 */
.navbar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
}

.navbar .links {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}
.navbar .links a {
    color: var(--accent-gold);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
}
.navbar .links a:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

header h1 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 0.25rem;
    color: var(--accent-gold);
    font-weight: 700;
}
header p {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

/* 使用说明样式 */
.usage-guide {
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
    border-left: 4px solid var(--accent-gold);
    border: 1px solid var(--border-color);
}
.usage-guide h3 {
    color: var(--accent-gold);
    margin-bottom: 0.6rem;
    font-size: 1.1rem;
    font-weight: 600;
}
.usage-guide h4 {
    color: var(--text-primary);
    margin: 0.6rem 0 0.3rem 0;
    font-size: 0.95rem;
    font-weight: 600;
}
.usage-guide p {
    margin-bottom: 0.6rem;
    line-height: 1.5;
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.usage-guide ul {
    margin: 0.3rem 0 0.6rem 1.25rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
}
.usage-guide li {
    margin-bottom: 0.25rem;
    line-height: 1.4;
}
.usage-guide .example {
    background: rgba(245, 158, 11, 0.08);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    color: var(--accent-gold);
    margin: 0.3rem 0;
    font-size: 0.9rem;
    border: 1px solid rgba(245, 158, 11, 0.2);
}
.usage-guide .inline-example {
    background: rgba(245, 158, 11, 0.08);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    color: var(--accent-gold);
    margin: 0 0.25rem;
    font-size: 0.9rem;
    border: 1px solid rgba(245, 158, 11, 0.2);
    display: inline-block;
}
.usage-guide .note {
    background: rgba(245, 158, 11, 0.05);
    padding: 0.6rem;
    border-radius: 6px;
    margin-top: 0.6rem;
    border-left: 3px solid var(--accent-gold);
    font-size: 0.85rem;
}

/* 统一的折叠功能样式 */
.collapsible {
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.2s;
}
.collapsible:hover {
    color: var(--accent-gold);
}
.collapsible::before {
    content: '▼';
    font-size: 0.8rem;
    transition: transform 0.2s ease;
    display: inline-block;
    width: 12px;
    text-align: center;
}
.collapsible.collapsed::before {
    transform: rotate(-90deg);
}
.collapsible-content {
    max-height: 1000px;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding-top: 0.5rem;
}
.collapsible-content.collapsed {
    max-height: 0;
    padding-top: 0;
}

/* 小提示的特殊样式 */
.note-collapsible {
    background: rgba(255, 223, 150, 0.1);
    border-radius: 6px;
    border-left: 3px solid var(--accent-gold);
    font-size: 0.85rem;
    margin-top: 0.6rem;
    overflow: hidden;
}
.note-collapsible .note-header {
    padding: 0.5rem 0.75rem;
    margin: 0;
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: color 0.2s;
}
.note-collapsible .note-header:hover {
    color: var(--accent-gold);
}
.note-collapsible .note-header::before {
    content: '▼';
    font-size: 0.75rem;
    transition: transform 0.2s ease;
    display: inline-block;
    width: 10px;
    text-align: center;
}
.note-collapsible .note-header.collapsed::before {
    transform: rotate(-90deg);
}
.note-collapsible .note-content {
    max-height: 1000px;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0.5rem 0.75rem 0.6rem 0.75rem;
    line-height: 1.5;
}
.note-collapsible .note-content.collapsed {
    max-height: 0;
    padding: 0 0.75rem;
}

.form-group {
    margin-bottom: 0.85rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
}
input[type="text"], textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: var(--font-family);
}
input[type="text"]:focus, textarea:focus {
    outline: none;
    background: var(--bg-secondary);
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}
textarea {
    resize: vertical;
    min-height: 100px;
}
.file-drop-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem 1.5rem;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-tertiary);
}
.file-drop-area.dragover {
    background-color: rgba(245, 158, 11, 0.05);
    border-color: var(--accent-gold);
    border-width: 3px;
    transform: scale(1.02);
}
.file-drop-area:hover {
    border-color: var(--accent-gold);
    background: rgba(245, 158, 11, 0.03);
}
.file-drop-area p {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
}
#file-input, #feedback-images {
    display: none;
}
#preview-container, #feedback-preview-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}
.preview-image {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
}
.preview-image:hover {
    transform: scale(1.05);
    border-color: var(--accent-gold);
    box-shadow: 0 4px 8px rgba(217, 119, 6, 0.2);
    z-index: 10;
}
.submit-btn {
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: 2px solid var(--button-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}
.submit-btn:hover:not(:disabled) {
    background-color: var(--button-hover-bg);
    border-color: var(--button-hover-border);
    color: var(--button-hover-border);
    box-shadow: 0 4px 12px rgba(217, 119, 6, 0.2);
    transform: translateY(-2px);
}
.submit-btn:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(217, 119, 6, 0.1);
}
.submit-btn:disabled {
    background-color: transparent;
    border-color: #d1d5db;
    color: #9ca3af;
    cursor: not-allowed;
    opacity: 0.5;
}
.loader {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(217, 119, 6, 0.2);
    border-top-color: var(--accent-gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 10px;
}
@keyframes spin { to { transform: rotate(360deg); } }
#results, #feedback-results {
    margin-top: 1rem;
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid var(--separator-teal);
}
#results img {
    max-width: 100%;
    border-radius: var(--border-radius);
    margin-top: 0.75rem;
    box-shadow: 0 4px 12px var(--card-shadow);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}
#results img:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

/* 图片放大模态框样式 */
.image-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    animation: fadeIn 0.3s ease-in-out;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.image-modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}
.image-modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    animation: zoomIn 0.3s ease-in-out;
}
@keyframes zoomIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}
.image-modal-content img {
    max-width: 100%;
    max-height: 90vh;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}
.image-modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    font-size: 2.5rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: color 0.2s;
    user-select: none;
}
.image-modal-close:hover {
    color: var(--accent-gold);
}
.image-modal-info {
    color: var(--text-secondary);
    text-align: center;
    margin-top: 1rem;
    font-size: 0.9rem;
}
.image-modal-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0 1rem;
    transition: color 0.2s;
    user-select: none;
}
.image-modal-nav:hover {
    color: var(--accent-gold);
}
.image-modal-prev {
    left: -60px;
}
.image-modal-next {
    right: -60px;
}
#status-message, #feedback-status-message {
    margin-bottom: 1rem;
    padding: 1rem;
    border-radius: 8px;
    font-weight: 500;
}
.status-success {
    background-color: rgba(40, 167, 69, 0.2);
    color: #16a34a;
}

html[data-theme="dark"] .status-success {
    color: #4ade80;
}

.status-error {
    background-color: rgba(220, 53, 69, 0.2);
    color: #dc2626;
}

html[data-theme="dark"] .status-error {
    color: #f87171;
}

/* 提交反馈按钮 */
.btn-toggle-feedback {
    padding: 0.75rem 1.5rem;
    background: transparent;
    color: var(--accent-blue);
    border: 2px solid var(--accent-blue);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: none;
}

.btn-toggle-feedback:hover {
    background: var(--accent-blue);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

html[data-theme="dark"] .btn-toggle-feedback {
    color: #60a5fa;
    border-color: #60a5fa;
}

html[data-theme="dark"] .btn-toggle-feedback:hover {
    background: #60a5fa;
    color: white;
}

/* 反馈区域样式 */
.feedback-section {
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    margin-top: 1.5rem;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-blue);
}
.feedback-section h3 {
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}
.feedback-desc {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}
.feedback-note {
    background: rgba(245, 158, 11, 0.1);
    border-left: 3px solid var(--accent-gold);
    padding: 0.75rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 主题切换按钮 */
.theme-toggle {
  padding: 0.5rem 0.75rem;
  background: transparent;
  color: var(--text-secondary);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: auto;
}

.theme-toggle:hover {
  background: var(--bg-tertiary);
  transform: scale(1.1);
}

/* 深色模式调整 */
html[data-theme="dark"] .navbar {
  background: transparent;
  backdrop-filter: none;
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

html[data-theme="dark"] .navbar .logo {
  color: var(--text-primary);
}

html[data-theme="dark"] .navbar .links a {
  color: var(--accent-blue);
}

html[data-theme="dark"] .navbar .links a:hover {
  color: var(--accent-gold);
  background: rgba(255, 223, 150, 0.1);
}

html[data-theme="dark"] .container {
  background: var(--panel-bg);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

html[data-theme="dark"] .usage-guide {
  background: rgba(0,0,0,0.2);
  border-color: rgba(255, 255, 255, 0.1);
}

html[data-theme="dark"] .feedback-section {
  background: rgba(0,0,0,0.2);
  border-color: rgba(255, 255, 255, 0.1);
}

html[data-theme="dark"] .file-drop-area {
  background: rgba(0,0,0,0.2);
  border-color: rgba(255, 255, 255, 0.2);
}

html[data-theme="dark"] .file-drop-area:hover {
  border-color: var(--accent-blue);
  background: rgba(135, 206, 250, 0.05);
}

html[data-theme="dark"] .file-drop-area.dragover {
  background-color: rgba(135, 206, 250, 0.1);
  border-color: var(--accent-blue);
}

html[data-theme="dark"] .preview-image {
  border-color: rgba(255, 255, 255, 0.2);
}

html[data-theme="dark"] .preview-image:hover {
  border-color: var(--accent-blue);
  box-shadow: 0 4px 8px rgba(135, 206, 250, 0.2);
}

html[data-theme="dark"] #results img {
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

html[data-theme="dark"] #results img:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

/* 输入框深色模式调整 */
html[data-theme="dark"] input[type="text"],
html[data-theme="dark"] textarea {
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-primary);
}

html[data-theme="dark"] input[type="text"]:focus,
html[data-theme="dark"] textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(135, 206, 250, 0.2);
}

/* 按钮深色模式调整 */
html[data-theme="dark"] .submit-btn {
  background-color: var(--accent-blue);
  color: var(--bg-start);
  border-color: var(--accent-blue);
}

html[data-theme="dark"] .submit-btn:hover:not(:disabled) {
  background-color: #a7d8f8;
  border-color: #a7d8f8;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(135, 206, 250, 0.3);
}

html[data-theme="dark"] .submit-btn:active:not(:disabled) {
  transform: translateY(0);
}

@media (max-width: 768px) {
    body {
        padding: 0.5rem;
    }
    .container {
        padding: 1rem;
    }
    header h1 {
        font-size: 1.6rem;
    }

    /* 移动端导航栏折叠 */
    .navbar {
        flex-direction: row;
        margin-bottom: 0.75rem;
        padding-bottom: 0.5rem;
    }

    .nav-actions {
        gap: 0.4rem;
    }

    .navbar-toggle {
        display: block;
    }

    .navbar .links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        width: 100%;
        flex-direction: column;
        gap: 0;
        background: var(--bg-secondary);
        border: 1px solid var(--border-color);
        border-top: none;
        padding: 0;
        z-index: 100;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .navbar .links.show {
        display: flex;
    }

    .navbar .links a {
        width: 100%;
        text-align: left;
        padding: 0.75rem 1rem;
        border-bottom: 1px solid var(--border-color);
        border-radius: 0;
    }

    .navbar .links a:last-child {
        border-bottom: none;
    }
    .navbar-right {
        gap: 0.2rem;
    }

    .usage-guide, .feedback-section {
        padding: 0.85rem;
    }
    .file-drop-area {
        padding: 2rem 1rem;
        min-height: 150px;
    }
    .feedback-section {
        margin-top: 1rem;
    }
}

/* ============================================
   浮动装饰元素 - 完全模仿xwld样式
   ============================================ */

/* 叶子浮动动画 */
@keyframes float-leaf {
  0% {
    transform: translateY(0px) translateX(0px) rotateZ(0deg);
    opacity: 0.8;
  }
  25% {
    transform: translateY(-15px) translateX(8px) rotateZ(8deg);
  }
  50% {
    transform: translateY(-20px) translateX(0px) rotateZ(0deg);
    opacity: 1;
  }
  75% {
    transform: translateY(-10px) translateX(-8px) rotateZ(-8deg);
  }
  100% {
    transform: translateY(0px) translateX(0px) rotateZ(0deg);
    opacity: 0.8;
  }
}

/* 左侧漂移动画 */
@keyframes drift-left {
  0% {
    transform: translateX(0) translateY(0) rotate(0deg);
    opacity: 0.1;
  }
  50% {
    transform: translateX(-30px) translateY(-20px) rotate(10deg);
    opacity: 0.2;
  }
  100% {
    transform: translateX(0) translateY(-40px) rotate(-5deg);
    opacity: 0.1;
  }
}

/* 右侧漂移动画 */
@keyframes drift-right {
  0% {
    transform: translateX(0) translateY(0) rotate(0deg);
    opacity: 0.1;
  }
  50% {
    transform: translateX(30px) translateY(-20px) rotate(-10deg);
    opacity: 0.2;
  }
  100% {
    transform: translateX(0) translateY(-40px) rotate(5deg);
    opacity: 0.1;
  }
}

/* 温和浮动动画 */
@keyframes slow-float {
  0%, 100% {
    transform: translateY(0px);
    opacity: 0.12;
  }
  50% {
    transform: translateY(-15px);
    opacity: 0.2;
  }
}

/* 浮动装饰元素容器 */
.floating-decoration {
  position: fixed;
  pointer-events: none;
  z-index: 1;
  font-size: 24px;
  opacity: 0.15;
}

/* 左侧浮动元素 */
.float-left {
  animation: drift-left 8s ease-in-out infinite;
}

/* 右侧浮动元素 */
.float-right {
  animation: drift-right 8s ease-in-out infinite;
}

/* 温和浮动 */
.float-gentle {
  animation: slow-float 6s ease-in-out infinite;
}