/* =====================================================
 * OpenCPAi 官网样式
 * 版本: 1.0.0
 * ===================================================== */

/* ========== 基础重置 ========== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* ========== 自定义滚动条 ========== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #1E293B;
}

::-webkit-scrollbar-thumb {
    background: #475569;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #64748B;
}

/* ========== 渐变文字 ========== */
.gradient-text {
    background: linear-gradient(135deg, #6366F1, #8B5CF6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========== 玻璃态效果 ========== */
.glass {
    background: rgba(30, 41, 59, 0.5);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* ========== 渐变边框 ========== */
.gradient-border {
    position: relative;
    background: linear-gradient(#0F172A, #0F172A) padding-box,
                linear-gradient(135deg, #6366F1, #8B5CF6) border-box;
    border: 2px solid transparent;
}

/* ========== 光晕效果 ========== */
.glow {
    box-shadow: 0 0 40px rgba(139, 92, 246, 0.3);
}

.glow-blue {
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.3);
}

/* ========== 动画 ========== */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(139, 92, 246, 0.4);
    }
    50% {
        box-shadow: 0 0 40px rgba(139, 92, 246, 0.6);
    }
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-pulse-glow {
    animation: pulse-glow 2s ease-in-out infinite;
}

/* ========== 滚动渐入动画 ========== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== 聊天消息动画 ========== */
.chat-message {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== 移动端聊天弹窗 ========== */
#mobile-chat-modal {
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#mobile-chat-modal.hidden {
    opacity: 0;
    visibility: hidden;
}

#mobile-chat-modal.visible {
    opacity: 1;
    visibility: visible;
}

/* ========== 响应式调整 ========== */
@media (max-width: 1024px) {
    main {
        margin-right: 0 !important;
    }
}

/* ========== 打字机效果 ========== */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 8px 12px;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: #64748B;
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) {
    animation-delay: 0s;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    30% {
        transform: translateY(-8px);
        opacity: 1;
    }
}

/* ========== Header 滚动效果 ========== */
#header.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* ========== 按钮点击效果 ========== */
button:active,
a:active {
    transform: scale(0.98);
}

/* ========== 选择高亮 ========== */
::selection {
    background: rgba(139, 92, 246, 0.3);
    color: #F8FAFC;
}

/* ========== 链接样式 ========== */
a {
    text-decoration: none;
    color: inherit;
}

/* ========== 输入框焦点 ========== */
input:focus {
    outline: none;
}

/* ========== 时间线特殊样式 ========== */
.timeline-dot {
    position: relative;
}

.timeline-dot::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 20px;
    height: 20px;
    background: inherit;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.3;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.3;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0;
    }
}