/* ==========================================
   坤辰AI 设计系统 utility 样式
   通用深色科技风组件样式
   ========================================== */

/* 全局字体（统一使用 Inter / Space Grotesk / 系统字体后备） */
.font-display {
    font-family: 'Space Grotesk', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: 0;
}

/* 应用渐变背景 - 仅深色主题应用 */
[data-theme="dark"] body.app-gradient,
[data-theme="dark"] .app-gradient-bg {
    background:
        radial-gradient(circle at 20% 20%, rgba(43, 124, 238, 0.15), transparent 60%),
        radial-gradient(circle at 80% 0%, rgba(100, 255, 218, 0.08), transparent 55%),
        radial-gradient(circle at 50% 100%, rgba(138, 43, 226, 0.08), transparent 60%),
        linear-gradient(180deg, #0A192F 0%, #112240 50%, #0A192F 100%) !important;
    background-attachment: fixed !important;
}

/* 玻璃面板 */
.glass-panel {
    background: var(--glass-bg, rgba(17, 34, 64, 0.6));
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--glass-border, rgba(59, 69, 84, 0.5));
    border-radius: 1.25rem;
    box-shadow: var(--glass-shadow, 0 20px 60px rgba(0, 0, 0, 0.4));
    transition: all 0.3s ease;
}

.glass-panel:hover {
    border-color: rgba(43, 124, 238, 0.5);
    box-shadow: 0 20px 60px rgba(43, 124, 238, 0.2);
}

/* 玻璃卡片 - 略小阴影 */
.glass-card {
    background: var(--glass-bg, rgba(17, 34, 64, 0.5));
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--glass-border, rgba(59, 69, 84, 0.4));
    border-radius: 1rem;
    transition: all 0.25s ease;
}

.glass-card:hover {
    border-color: rgba(43, 124, 238, 0.45);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(43, 124, 238, 0.15);
}

/* 主按钮 - 渐变 */
.btn-gradient {
    background: linear-gradient(135deg, #2b7cee 0%, #00BFFF 100%);
    color: #ffffff;
    border: none;
    padding: 0.65rem 1.4rem;
    border-radius: 9999px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-size: 0.875rem;
    box-shadow: 0 6px 18px rgba(43, 124, 238, 0.35);
}

.btn-gradient:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 26px rgba(43, 124, 238, 0.45);
}

.btn-gradient:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
}

/* 紫色渐变按钮 */
.btn-purple-gradient {
    background: linear-gradient(135deg, #8A2BE2 0%, #2b7cee 100%);
    color: #ffffff;
    border: none;
    padding: 0.65rem 1.4rem;
    border-radius: 9999px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-size: 0.875rem;
    box-shadow: 0 6px 18px rgba(138, 43, 226, 0.35);
}

.btn-purple-gradient:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 26px rgba(138, 43, 226, 0.45);
}

/* 描边按钮 */
.btn-outline {
    background: rgba(17, 34, 64, 0.5);
    color: #E6F1FF;
    border: 1px solid rgba(43, 124, 238, 0.4);
    padding: 0.6rem 1.3rem;
    border-radius: 9999px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.875rem;
}

.btn-outline:hover {
    background: rgba(43, 124, 238, 0.15);
    border-color: rgba(43, 124, 238, 0.7);
}

/* 渐变文字 */
.text-gradient {
    background: linear-gradient(135deg, #2b7cee 0%, #00BFFF 50%, #64FFDA 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-purple {
    background: linear-gradient(135deg, #DA70D6 0%, #8A2BE2 50%, #2b7cee 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 标签 */
.tag-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    background: rgba(43, 124, 238, 0.15);
    color: #00BFFF;
    border: 1px solid rgba(43, 124, 238, 0.3);
}

.tag-pill-purple {
    background: rgba(138, 43, 226, 0.15);
    color: #DA70D6;
    border-color: rgba(138, 43, 226, 0.3);
}

.tag-pill-cyan {
    background: rgba(100, 255, 218, 0.12);
    color: #64FFDA;
    border-color: rgba(100, 255, 218, 0.3);
}

/* 应用图标圈 - 用于 AI 应用入口 */
.app-icon-circle {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: #ffffff;
    flex-shrink: 0;
}

.app-icon-blue { background: linear-gradient(135deg, #2b7cee 0%, #00BFFF 100%); box-shadow: 0 6px 16px rgba(43, 124, 238, 0.35); }
.app-icon-purple { background: linear-gradient(135deg, #8A2BE2 0%, #DA70D6 100%); box-shadow: 0 6px 16px rgba(138, 43, 226, 0.35); }
.app-icon-cyan { background: linear-gradient(135deg, #00BFFF 0%, #64FFDA 100%); box-shadow: 0 6px 16px rgba(100, 255, 218, 0.3); }
.app-icon-orange { background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%); box-shadow: 0 6px 16px rgba(245, 158, 11, 0.35); }
.app-icon-green { background: linear-gradient(135deg, #10b981 0%, #34D399 100%); box-shadow: 0 6px 16px rgba(16, 185, 129, 0.35); }
.app-icon-pink { background: linear-gradient(135deg, #ec4899 0%, #f472b6 100%); box-shadow: 0 6px 16px rgba(236, 72, 153, 0.35); }

/* 锁定/Pro 角标 */
.badge-pro {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem 0.55rem;
    border-radius: 9999px;
    font-size: 0.65rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: #1a1a1a;
}

.badge-system {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem 0.55rem;
    border-radius: 9999px;
    font-size: 0.65rem;
    font-weight: 600;
    background: rgba(43, 124, 238, 0.2);
    color: #00BFFF;
    border: 1px solid rgba(43, 124, 238, 0.4);
}

/* AI 应用大卡片 */
.ai-app-card {
    position: relative;
    overflow: hidden;
    padding: 1.5rem;
    cursor: pointer;
    background: var(--glass-bg, rgba(17, 34, 64, 0.6));
    backdrop-filter: blur(14px);
    border: 1px solid var(--glass-border, rgba(59, 69, 84, 0.4));
    border-radius: 1.25rem;
    transition: all 0.3s ease;
}

.ai-app-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 1.25rem;
    padding: 1px;
    background: linear-gradient(135deg, rgba(138, 43, 226, 0.5), rgba(43, 124, 238, 0.5), transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.ai-app-card:hover {
    transform: translateY(-4px);
    border-color: rgba(43, 124, 238, 0.5);
    box-shadow: 0 18px 40px rgba(43, 124, 238, 0.2);
}

.ai-app-card:hover::before {
    opacity: 1;
}

/* 主页 hero banner */
.hero-banner {
    position: relative;
    padding: 3rem 2rem;
    border-radius: 1.5rem;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(138, 43, 226, 0.18) 0%, rgba(43, 124, 238, 0.18) 100%);
    border: 1px solid rgba(43, 124, 238, 0.25);
    backdrop-filter: blur(18px);
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 191, 255, 0.25) 0%, transparent 70%);
    filter: blur(40px);
    pointer-events: none;
}

.hero-banner::after {
    content: '';
    position: absolute;
    bottom: -120px;
    left: -120px;
    width: 380px;
    height: 380px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(138, 43, 226, 0.18) 0%, transparent 70%);
    filter: blur(50px);
    pointer-events: none;
}

/* 区块标题 */
.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.section-title-icon {
    width: 4px;
    height: 24px;
    border-radius: 2px;
    background: linear-gradient(180deg, #2b7cee 0%, #00BFFF 100%);
}

/* 滚动条 */
.fancy-scrollbar::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
.fancy-scrollbar::-webkit-scrollbar-track {
    background: transparent;
}
.fancy-scrollbar::-webkit-scrollbar-thumb {
    background: rgba(43, 124, 238, 0.35);
    border-radius: 3px;
}
.fancy-scrollbar::-webkit-scrollbar-thumb:hover {
    background: rgba(43, 124, 238, 0.6);
}

/* 加载小动画 - 三点跳动 */
@keyframes dotPulse {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}
.loading-dots {
    display: inline-flex;
    gap: 4px;
    align-items: center;
}
.loading-dots span {
    width: 6px;
    height: 6px;
    background: #00BFFF;
    border-radius: 50%;
    animation: dotPulse 1.4s ease-in-out infinite both;
}
.loading-dots span:nth-child(2) { animation-delay: 0.16s; }
.loading-dots span:nth-child(3) { animation-delay: 0.32s; }

/* 进度条 */
.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(17, 34, 64, 0.6);
    border-radius: 3px;
    overflow: hidden;
    border: 1px solid rgba(59, 69, 84, 0.5);
}
.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #2b7cee 0%, #00BFFF 100%);
    border-radius: 3px;
    transition: width 0.4s ease;
    position: relative;
    overflow: hidden;
}
.progress-bar-fill::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.35) 50%, transparent 100%);
    animation: shimmer 1.6s linear infinite;
}
@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* 表单字段 */
.form-field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-label .required {
    color: #EF4444;
    margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
    /* box-sizing 必须显式声明！否则 width:100% 只算 content box，
       padding (0.9rem*2 ≈ 28.8px) + border (1px*2 = 2px) 加在外面，
       textarea 整体溢出父容器约 30px ——左侧面板上肉眼看就是「超出边框」。
       同时 max-width: 100% 防止任何场景下被子元素撑爆。 */
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    background: var(--input-bg, rgba(17, 34, 64, 0.5));
    border: 1px solid var(--input-border, rgba(59, 69, 84, 0.5));
    color: var(--input-text, #E6F1FF);
    padding: 0.65rem 0.9rem;
    border-radius: 0.65rem;
    font-size: 0.875rem;
    font-family: inherit;
    transition: all 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: rgba(43, 124, 238, 0.7);
    box-shadow: 0 0 0 3px rgba(43, 124, 238, 0.18);
}

.form-textarea {
    resize: vertical;
    min-height: 90px;
}

.form-checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.form-checkbox-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.9rem;
    border-radius: 9999px;
    font-size: 0.8rem;
    background: rgba(17, 34, 64, 0.5);
    border: 1px solid rgba(59, 69, 84, 0.5);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.form-checkbox-pill:hover {
    border-color: rgba(43, 124, 238, 0.5);
    color: var(--text-primary);
}

.form-checkbox-pill.active {
    background: linear-gradient(135deg, rgba(43, 124, 238, 0.4) 0%, rgba(0, 191, 255, 0.3) 100%);
    border-color: rgba(43, 124, 238, 0.6);
    color: #ffffff;
}

.form-checkbox-pill input {
    display: none;
}

/* 顶部导航 */
.top-nav-glass {
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(43, 124, 238, 0.18);
}

/* 侧边栏样式（聊天页等使用） */
.side-rail {
    width: 280px;
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(18px);
    border-right: 1px solid rgba(59, 69, 84, 0.4);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex-shrink: 0;
}

.side-rail-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.65rem 0.85rem;
    margin: 0.15rem 0.6rem;
    border-radius: 0.6rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.18s ease;
    font-size: 0.875rem;
}

.side-rail-item:hover {
    background: rgba(43, 124, 238, 0.12);
    color: var(--text-primary);
}

.side-rail-item.active {
    background: linear-gradient(135deg, rgba(43, 124, 238, 0.25) 0%, rgba(0, 191, 255, 0.15) 100%);
    color: var(--text-primary);
    border-left: 2px solid #00BFFF;
}

/* 聊天消息 */
.chat-message-row {
    display: flex;
    gap: 0.85rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.chat-message-row.user {
    flex-direction: row-reverse;
}

.chat-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: #ffffff;
    font-size: 0.95rem;
}

.chat-avatar.user {
    background: linear-gradient(135deg, #2b7cee 0%, #1e5bb8 100%);
}

.chat-avatar.ai {
    background: linear-gradient(135deg, #8A2BE2 0%, #DA70D6 100%);
}

.chat-bubble {
    max-width: 70%;
    padding: 0.85rem 1.1rem;
    border-radius: 1rem;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-primary);
    word-break: break-word;
}

.chat-bubble.user {
    background: linear-gradient(135deg, #2b7cee 0%, #1e5bb8 100%);
    color: #ffffff;
    border-bottom-right-radius: 0.3rem;
}

.chat-bubble.ai {
    background: rgba(17, 34, 64, 0.7);
    border: 1px solid rgba(59, 69, 84, 0.5);
    border-bottom-left-radius: 0.3rem;
}

/* 聊天中渲染的图片/视频 */
.chat-media-img {
    max-width: 320px;
    max-height: 400px;
    border-radius: 0.75rem;
    margin-top: 0.5rem;
    border: 1px solid rgba(59, 69, 84, 0.5);
    cursor: zoom-in;
}

.chat-media-video {
    max-width: 360px;
    border-radius: 0.75rem;
    margin-top: 0.5rem;
    border: 1px solid rgba(59, 69, 84, 0.5);
}

/* 媒体生成进度卡片 */
.media-progress-card {
    margin-top: 0.5rem;
    padding: 0.85rem 1rem;
    border-radius: 0.75rem;
    background: rgba(17, 34, 64, 0.6);
    border: 1px solid rgba(43, 124, 238, 0.3);
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.media-progress-icon {
    width: 36px;
    height: 36px;
    border-radius: 0.6rem;
    background: linear-gradient(135deg, #8A2BE2 0%, #2b7cee 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1rem;
    flex-shrink: 0;
}

.media-progress-content {
    flex: 1;
    min-width: 0;
}

.media-progress-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

/* 工具栏图标按钮 */
.icon-btn {
    width: 36px;
    height: 36px;
    border-radius: 0.6rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(17, 34, 64, 0.5);
    border: 1px solid rgba(59, 69, 84, 0.4);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.icon-btn:hover {
    background: rgba(43, 124, 238, 0.18);
    border-color: rgba(43, 124, 238, 0.5);
    color: var(--text-primary);
}

/* 浮动 AI 应用按钮（聊天页角落） */
.floating-apps-btn {
    position: fixed;
    bottom: 1.6rem;
    right: 1.6rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #8A2BE2 0%, #2b7cee 100%);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    cursor: pointer;
    box-shadow: 0 12px 30px rgba(138, 43, 226, 0.4);
    transition: all 0.25s ease;
    z-index: 100;
    border: none;
}

.floating-apps-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 36px rgba(138, 43, 226, 0.55);
}

/* 通用容器 */
.container-1280 {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

@media (max-width: 768px) {
    .container-1280 {
        padding: 0 1rem;
    }
    .glass-panel {
        border-radius: 1rem;
    }
}

/* 响应式工具：3-2-1 列网格 */
.grid-apps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

@media (max-width: 1023px) {
    .grid-apps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .grid-apps { grid-template-columns: 1fr; }
}

/* 渐入动画 */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-fade-in-up { animation: fadeInUp 0.4s ease both; }

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 18px rgba(43, 124, 238, 0.35); }
    50% { box-shadow: 0 0 28px rgba(43, 124, 238, 0.6); }
}
.animate-pulse-glow { animation: pulseGlow 2s ease-in-out infinite; }