/* DeepTrans 测试站 - 首页 UI 样式 (新丑风 + 二次元风格) */

/* --- 1. 全局变量与基础设置 --- */
:root {
    --color-black: #1d1d1f;
    --color-white: #ffffff;
    --color-yellow: #ffd93d;
    --color-green: #34c759;
    --color-pink: #ff6b9d;
    --color-blue: #007aff;
    --border-thick: 3px; /* 标志性的粗黑边框 */
    --shadow-hard: 6px 6px 0px var(--color-black); /* 新丑风硬阴影 */
    --shadow-hard-hover: 10px 10px 0px var(--color-black); /* 悬浮时阴影变大 */
    --transition-bounce: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); /* 弹性动画曲线 */
}

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

body {
    font-family: 'PingFang SC', 'Comic Sans MS', 'Microsoft YaHei', sans-serif;
    min-height: 100vh;
    color: var(--color-black);
    overflow-x: clip; /* 替代 hidden，不创建 scroll container，保证 fixed 生效 */
    /* 二次元波点背景底纹 */
    background-color: #fdfdfd;
    background-image: radial-gradient(#e5e5e5 2px, transparent 2px);
    background-size: 20px 20px;
    /* 为固定导航栏预留顶部空间，避免内容被遮挡 */
    padding-top: 60px;
}

/* --- 2. 导航栏 (固定顶部，不随页面滚动) --- */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 5%;
    background: var(--color-yellow);
    border-bottom: var(--border-thick) solid var(--color-black);
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100%;
    z-index: 9999;
}

.logo {
    font-size: clamp(20px, 4vw, 26px);
    font-weight: 900;
    color: var(--color-black);
    letter-spacing: 2px;
    text-transform: uppercase;
    text-shadow: 2px 2px 0px #fff;
    transform: rotate(-2deg); /* 微微倾斜更活泼 */
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
}

/* 统一按钮的新丑风样式 */
.btn-register, .btn-login, .auth-btn, .logout-btn, .message-btn, .admin-btn, .ai-analysis-btn, .account-btn, .user-display {
    padding: 8px 16px;
    border: 2px solid var(--color-black);
    border-radius: 8px; /* 变小圆角，更硬朗 */
    font-size: clamp(12px, 2.5vw, 14px);
    font-weight: 800;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 3px 3px 0px var(--color-black);
    transition: var(--transition-bounce);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--color-white);
    color: var(--color-black);
}

/* 按钮悬浮与按压动态效果 */
.btn-register:hover, .btn-login:hover, .auth-btn:hover, .admin-btn:hover {
    transform: translate(-2px, -2px);
    box-shadow: 5px 5px 0px var(--color-black);
}
.btn-register:active, .btn-login:active {
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0px var(--color-black);
}

.btn-register { background: var(--color-blue); color: #fff; }
.admin-btn { background: #9d4edd; color: #fff; }
.logout-btn { background: #ff4d4d; color: #fff; }

.msg-unread-badge {
    position: absolute; top: -8px; right: -8px;
    background: #ff3b30; color: white; font-size: 12px; font-weight: bold;
    min-width: 20px; height: 20px; border-radius: 10px;
    border: 2px solid var(--color-black);
    display: none; align-items: center; justify-content: center;
    animation: pulse 1.5s infinite; /* 消息红点呼吸动画 */
}

/* --- 3. Hero 主图区 (漫画主视觉) --- */
.hero {
    min-height: 25vh;
    display: flex;
    align-items: center;
    padding: 32px 5% 40px;
    position: relative;
    overflow: hidden;
    background: #fff url(/pics/hero-banner.png) no-repeat right center;
    background-size: cover;
    border-bottom: var(--border-thick) solid var(--color-black);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(29,29,31,0.8) 0%, rgba(29,29,31,0.2) 60%, transparent 100%);
    pointer-events: none;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
    position: relative;
    z-index: 2;
    animation: slideInLeft 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.hero h1 {
    font-size: 68px;
    font-weight: 900;
    line-height: 1.1;
    color: #fff;
    margin-bottom: 12px;
    /* 新丑风标准：粗描边 + 纯色硬阴影 */
    text-shadow: 
        -2px -2px 0 #111, 2px -2px 0 #111, -2px 2px 0 #111, 2px 2px 0 #111,
        6px 6px 0px var(--color-black);
    letter-spacing: 2px;
}

.hero h2 {
    font-size: 56px;
    font-weight: 900;
    color: var(--color-yellow);
    margin-bottom: 24px;
    text-shadow: 
        -2px -2px 0 #111, 2px -2px 0 #111, -2px 2px 0 #111, 2px 2px 0 #111,
        6px 6px 0px var(--color-black);
}

.hero p {
    font-size: 20px;
    font-weight: bold;
    color: #fff;
    background: var(--color-black);
    display: inline-block;
    padding: 8px 16px;
    border-radius: 8px;
    transform: rotate(-1deg);
}

/* --- 4. 三色功能卡片 (漫画风面板) --- */
.feature-cards {
    display: grid;
    grid-template-columns: 1fr 1.2fr 1fr;
    gap: 30px;
    padding: 60px 5% 80px;
    max-width: 1200px;
    margin: 0 auto;
    align-items: stretch;
}

.feature-card {
    min-height: 340px;
    padding: 32px 24px;
    border-radius: 20px;
    border: var(--border-thick) solid var(--color-black); /* 黑粗边框 */
    box-shadow: var(--shadow-hard); /* 硬阴影 */
    text-align: center;
    cursor: pointer;
    transition: var(--transition-bounce);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    position: relative;
    overflow: hidden;
}

/* 去除渐变，改用高饱和纯色 */
.feature-card.yellow { background: var(--color-yellow); color: var(--color-black); }
.feature-card.green { background: var(--color-green); color: var(--color-black); cursor: default; }
.feature-card.pink { background: var(--color-pink); color: var(--color-black); }

/* 卡片悬浮动画：上浮并增大阴影 */
.feature-card:hover {
    transform: translate(-6px, -6px);
    box-shadow: var(--shadow-hard-hover);
}

.feature-card .icon {
    font-size: 60px;
    margin-bottom: 16px;
    line-height: 1;
    transition: transform 0.3s;
}

.feature-card:hover .icon {
    transform: scale(1.2) rotate(10deg); /* 图标放大扭动 */
}

.feature-card h3 {
    font-size: 42px;
    font-weight: 900;
    margin-bottom: 12px;
    letter-spacing: 2px;
    text-shadow: 2px 2px 0px #fff; /* 文字白底描边感 */
}

.feature-card p {
    font-size: 16px;
    font-weight: bold;
    line-height: 1.6;
    flex: 1;
    margin-bottom: 20px;
}

/* 练一练内部：4 个小卡片 */
.practice-btns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    width: 100%;
    max-width: 280px;
    margin-top: auto;
}

.practice-btn {
    padding: 14px 10px;
    background: #fff;
    color: var(--color-black);
    border: 2px solid var(--color-black);
    box-shadow: 3px 3px 0px var(--color-black);
    border-radius: 10px;
    font-size: 16px;
    font-weight: 900;
    text-decoration: none;
    transition: var(--transition-bounce);
    text-align: center;
}

.practice-btn:hover {
    background: var(--color-yellow);
    transform: translate(-2px, -2px);
    box-shadow: 5px 5px 0px var(--color-black);
}

.practice-btn:active {
    transform: translate(2px, 2px);
    box-shadow: 0px 0px 0px var(--color-black);
}

/* 底部入口提示 */
.feature-card.yellow .card-cta,
.feature-card.pink .card-cta {
    margin-top: auto;
    padding: 12px 24px;
    background: #fff;
    border: 2px solid var(--color-black);
    box-shadow: 3px 3px 0px var(--color-black);
    border-radius: 10px;
    font-size: 16px;
    font-weight: 900;
    width: 100%;
    max-width: 200px;
    text-align: center;
    transition: var(--transition-bounce);
}

.feature-card:hover .card-cta {
    background: var(--color-black);
    color: #fff;
}

/* --- 5. AI陪你聊 + 气泡 (动态强调) --- */
.ai-chat-wrap-outer {
    text-align: center;
    margin-top: -20px;
}

.ai-chat-wrap {
    position: relative;
    display: inline-block;
    margin-bottom: 60px;
}

.ai-chat-btn {
    display: inline-block;
    padding: 16px 50px;
    background: var(--color-black);
    color: var(--color-yellow);
    border: var(--border-thick) solid var(--color-black);
    box-shadow: 6px 6px 0px var(--color-pink); /* 撞色阴影 */
    border-radius: 12px;
    font-size: 20px;
    font-weight: 900;
    text-decoration: none;
    transition: var(--transition-bounce);
    text-transform: uppercase;
}

.ai-chat-btn:hover {
    background: var(--color-yellow);
    color: var(--color-black);
    transform: translateY(-4px) scale(1.05);
    box-shadow: 8px 8px 0px var(--color-black);
}

.ai-chat-bubble {
    position: absolute;
    left: -40px;
    top: -45px;
    padding: 12px 24px;
    background: var(--color-pink);
    color: #fff;
    font-size: 16px;
    font-weight: 900;
    border: 2px solid var(--color-black);
    border-radius: 20px 20px 0 20px; /* 漫画对话框形状 */
    box-shadow: 4px 4px 0px var(--color-black);
    transform: rotate(-10deg);
    white-space: nowrap;
    z-index: 2;
    animation: floatBubble 2.5s ease-in-out infinite; /* 气泡悬浮动画 */
}

/* --- 6. 模态框 (弹窗也做成漫画风) --- */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    z-index: 1000;
    justify-content: center; align-items: center;
}
.modal.active { display: flex; animation: fadeIn 0.3s; }

.modal-content {
    background: #fff; 
    border-radius: 16px; 
    padding: 40px;
    width: 90%; max-width: 420px; 
    border: 4px solid var(--color-black);
    box-shadow: 12px 12px 0px var(--color-black); /* 极硬的弹窗阴影 */
    position: relative;
    animation: popIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-tabs { display: flex; gap: 20px; justify-content: center; margin-bottom: 30px; }
.modal-tab {
    padding: 8px 20px; background: transparent; border: none;
    color: #666; cursor: pointer; font-size: 20px; font-weight: 900;
}
.modal-tab.active { color: var(--color-black); border-bottom: 4px solid var(--color-yellow); }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-size: 16px; font-weight: bold; color: var(--color-black); }

/* --- 【修复区开始】 密码框与小眼睛错位修复 --- */
.password-group { position: relative; }

.password-input-wrapper { 
    position: relative; 
    display: flex; 
    align-items: center; 
    width: 100%;
}

.password-input-wrapper input { 
    width: 100%; 
    padding: 14px 48px 14px 15px; /* 右侧留出 48px 给小眼睛按钮 */
    background: #f4f4f4;
    border: 2px solid var(--color-black); 
    border-radius: 8px; 
    font-size: 16px; font-weight: bold;
    transition: all 0.2s;
}

.form-group input {
    /* 其他普通输入框复用这个样式 */
    width: 100%; padding: 14px 15px; 
    background: #f4f4f4;
    border: 2px solid var(--color-black); 
    border-radius: 8px; 
    font-size: 16px; font-weight: bold;
    transition: all 0.2s;
}

.form-group input:focus, .password-input-wrapper input:focus {
    outline: none;
    background: #fff;
    box-shadow: 4px 4px 0px var(--color-yellow);
}

.toggle-password {
    position: absolute; 
    right: 12px; 
    top: 50%; /* 垂直居中对齐 */
    transform: translateY(-50%);
    background: transparent; 
    border: none;
    cursor: pointer; 
    font-size: 20px; 
    color: var(--color-black); 
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
    outline: none;
}

.toggle-password:hover { 
    transform: translateY(-50%) scale(1.2); 
}

/* 修复复选框与文字对齐 */
.checkbox-group {
    display: flex; 
    align-items: center; 
    gap: 10px; 
    margin: 16px 0 24px 0;
}

.checkbox-group input[type="checkbox"] { 
    width: 20px; 
    height: 20px; 
    accent-color: var(--color-blue); 
    cursor: pointer;
    border: 2px solid var(--color-black); 
}

.checkbox-group label { 
    font-size: 14px; 
    font-weight: bold; 
    color: var(--color-black); 
    cursor: pointer; 
    user-select: none;
}
/* --- 【修复区结束】 --- */

.submit-btn {
    width: 100%; padding: 14px; border-radius: 8px; 
    border: 2px solid var(--color-black);
    box-shadow: 4px 4px 0px var(--color-black);
    background: var(--color-blue); color: #fff; 
    font-size: 18px; font-weight: 900; cursor: pointer;
    transition: var(--transition-bounce);
}
.submit-btn:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0px var(--color-black); }
.submit-btn:active { transform: translate(2px, 2px); box-shadow: 0px 0px 0px var(--color-black); }

.close-modal { 
    position: absolute; top: -15px; right: -15px; 
    width: 40px; height: 40px; border-radius: 50%;
    background: var(--color-yellow); border: 2px solid var(--color-black); 
    color: var(--color-black); font-size: 24px; font-weight: bold; 
    cursor: pointer; box-shadow: 2px 2px 0px var(--color-black);
    transition: transform 0.2s;
}
.close-modal:hover { transform: rotate(90deg) scale(1.1); }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* 底部 */
.footer {
    text-align: center;
    padding: 30px 5%;
    color: var(--color-black);
    font-weight: bold;
    font-size: 14px;
    background: var(--color-white);
    border-top: var(--border-thick) dashed var(--color-black); /* 漫画分割线 */
}

/* --- 7. 动画定义 Keyframes --- */
@keyframes floatBubble {
    0%, 100% { transform: translateY(0) rotate(-10deg); }
    50% { transform: translateY(-8px) rotate(-15deg); }
}
@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 59, 48, 0.7); }
    70% { transform: scale(1.1); box-shadow: 0 0 0 6px rgba(255, 59, 48, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 59, 48, 0); }
}
@keyframes popIn {
    0% { opacity: 0; transform: scale(0.8); }
    100% { opacity: 1; transform: scale(1); }
}

/* --- 8. 响应式适配 --- */
@media (max-width: 768px) {
    .nav-right { gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
    .hero h1 { font-size: 42px; text-shadow: 4px 4px 0px var(--color-black); }
    .hero h2 { font-size: 36px; text-shadow: 4px 4px 0px var(--color-black); }
    .feature-cards { grid-template-columns: 1fr; max-width: 400px; padding-top: 40px; }
    .feature-card { min-height: 280px; }
    .ai-chat-bubble { left: -10px; font-size: 14px; }
}