/* ==================== Google Fonts ==================== */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600&family=Noto+Serif+SC:wght@400;500;600&family=Cormorant+Garamond:ital,wght@0,400;0,500;1,400&display=swap');

/* ==================== 基础重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #FAF8F5;
    --bg-subtle: #F5F2ED;
    --text-primary: #1C1410;
    --text-secondary: #6B5E54;
    --accent: #C9A962;
    --accent-dark: #A68B4B;
    --border: #E5DED4;
    --border-light: #F0EBE3;
    --card-bg: #FFFFFF;
    --bubble-ai: #F0EBE3;
    --bubble-user: #1C1410;
}

/* ==================== 页面基础 ==================== */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Cormorant Garamond', 'Noto Serif SC', Georgia, serif;
    background: var(--bg);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.7;
    font-size: 18px;
    -webkit-font-smoothing: antialiased;
}

/* ==================== 容器 ==================== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 80px 60px 100px;
}

/* ==================== Hero 区域 ==================== */
.hero {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0 80px;
    margin-bottom: 72px;
    animation: fadeIn 0.8s ease-out;
    align-items: center;
}

.hero-content {
    text-align: left;
}

.hero-avatar {
    animation: fadeIn 0.8s ease-out 0.1s both;
}

.avatar {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center top;
    border: 2px solid var(--border);
}

.name {
    font-family: 'Playfair Display', 'Noto Serif SC', serif;
    font-size: 3.8rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    line-height: 1.1;
    margin-bottom: 10px;
}

.tagline {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 28px;
    position: relative;
    padding-left: 20px;
}

.tagline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 14px;
    height: 1px;
    background: var(--accent);
}

.one-liner {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.35rem;
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 24px;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    font-family: 'Cormorant Garamond', serif;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 7px 18px;
    border-radius: 2px;
    letter-spacing: 0.02em;
    transition: all 0.25s ease;
}

.tag:hover {
    border-color: var(--accent);
    color: var(--accent-dark);
}

/* ==================== 信息卡片 ==================== */
.info-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 24px;
    animation: fadeIn 0.8s ease-out 0.15s both;
}

.info-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 32px 28px;
    position: relative;
    transition: border-color 0.25s ease;
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 28px;
    width: 28px;
    height: 2px;
    background: var(--accent);
    transform: translateY(-50%);
}

.info-card:hover {
    border-color: var(--accent);
}

.info-card h3 {
    font-family: 'Playfair Display', 'Noto Serif SC', serif;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 12px;
    letter-spacing: 0.01em;
}

.info-card p {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==================== 联系方式 ==================== */
.contact-section {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 28px 32px;
    margin-bottom: 20px;
    position: relative;
    animation: fadeIn 0.8s ease-out 0.2s both;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 32px;
    width: 28px;
    height: 2px;
    background: var(--accent);
    transform: translateY(-50%);
}

.contact-section h2 {
    font-family: 'Playfair Display', 'Noto Serif SC', serif;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: 0.01em;
}

.contact-list {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.contact-item {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.05rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.25s ease;
}

a.contact-item:hover {
    color: var(--accent-dark);
}

.contact-divider {
    color: var(--border);
    font-size: 1rem;
}

/* ==================== 并列内容区 ==================== */
.content-grid {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 20px;
    animation: fadeIn 0.8s ease-out 0.25s both;
    align-items: start;
}

/* ==================== 关于我 ==================== */
.about-section {
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 36px 32px;
    position: relative;
}

.about-section::before {
    content: '关于我';
    position: absolute;
    top: -10px;
    left: 32px;
    background: var(--bg-subtle);
    padding: 0 14px;
    font-family: 'Cormorant Garamond', serif;
    font-size: 0.8rem;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.about-section p {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.9;
}

/* ==================== 聊天区 ==================== */
.chat-section {
    background: #F5F2ED;
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    border-radius: 2px;
    padding: 40px 36px;
    animation: fadeIn 0.8s ease-out 0.35s both;
    position: relative;
}

.chat-badge {
    position: absolute;
    top: 16px;
    right: 20px;
    font-family: 'Cormorant Garamond', serif;
    font-size: 0.75rem;
    font-style: italic;
    color: var(--accent-dark);
    letter-spacing: 0.08em;
    border: 1px solid var(--accent);
    padding: 4px 12px;
    border-radius: 2px;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 18px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border);
    margin-bottom: 20px;
}

.digital-avatar-wrapper {
    flex-shrink: 0;
}

.digital-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center top;
    border: 1px solid var(--border);
    transition: transform 0.25s ease;
}

.digital-avatar:hover {
    transform: scale(1.05);
}

.chat-title h3 {
    font-family: 'Playfair Display', 'Noto Serif SC', serif;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 3px;
}

.status {
    font-family: 'Cormorant Garamond', serif;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ==================== 快速提问 ==================== */
.quick-questions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border-light);
}

.quick-btn {
    font-family: 'Cormorant Garamond', serif;
    font-size: 0.9rem;
    color: var(--accent-dark);
    background: transparent;
    border: 1px solid var(--accent);
    padding: 8px 16px;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.25s ease;
}

.quick-btn:hover {
    background: var(--accent);
    color: var(--bg);
}

/* ==================== 消息 ==================== */
.chat-messages {
    height: 280px;
    overflow-y: auto;
    padding-right: 8px;
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.chat-messages::-webkit-scrollbar {
    width: 3px;
}

.chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--border);
}

.message {
    display: flex;
    animation: messageIn 0.3s ease-out;
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ai-message {
    justify-content: flex-start;
}

.user-message {
    justify-content: flex-end;
}

.message-bubble {
    max-width: 68%;
    padding: 12px 18px;
    border-radius: 2px;
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.02rem;
    line-height: 1.6;
}

.ai-message .message-bubble {
    background: var(--bubble-ai);
    color: var(--text-primary);
    border-bottom-left-radius: 14px;
}

.user-message .message-bubble {
    background: var(--bubble-user);
    color: var(--bg);
    border-bottom-right-radius: 14px;
}

/* ==================== 输入区 ==================== */
.chat-input-wrapper {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.chat-input {
    flex: 1;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: 2px;
    padding: 13px 16px;
    color: var(--text-primary);
    font-family: 'Cormorant Garamond', serif;
    font-size: 1rem;
    line-height: 1.5;
    resize: none;
    min-height: 50px;
    max-height: 120px;
    transition: border-color 0.25s ease;
}

.chat-input::placeholder {
    color: var(--text-secondary);
    font-style: italic;
}

.chat-input:focus {
    outline: none;
    border-color: var(--accent);
}

.send-btn {
    background: var(--text-primary);
    color: var(--bg);
    border: none;
    border-radius: 2px;
    padding: 13px 28px;
    font-family: 'Cormorant Garamond', serif;
    font-size: 1rem;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: all 0.25s ease;
    flex-shrink: 0;
}

.send-btn:hover:not(:disabled) {
    background: var(--accent-dark);
}

.send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ==================== 动画 ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== 响应式 ==================== */
@media (max-width: 900px) {
    .container {
        padding: 60px 40px 80px;
    }

    .hero {
        grid-template-columns: 1fr;
        gap: 32px 0;
        text-align: center;
    }

    .hero-content {
        order: 2;
    }

    .hero-avatar {
        order: 1;
        display: flex;
        justify-content: center;
    }

    .avatar {
        width: 140px;
        height: 140px;
    }

    .name {
        font-size: 3rem;
    }

    .tagline {
        padding-left: 0;
    }

    .tagline::before {
        display: none;
    }

    .one-liner {
        margin-left: auto;
        margin-right: auto;
    }

    .tags {
        justify-content: center;
    }

    .info-cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .content-grid {
        grid-template-columns: 1fr;
    }

    .about-section {
        padding: 36px 28px;
    }

    .about-section::before {
        left: 28px;
    }

    .chat-section {
        padding: 32px 24px;
        padding-top: 48px;
    }

    .chat-badge {
        top: 14px;
        right: 16px;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 48px 20px 80px;
        padding-bottom: calc(48px + env(safe-area-inset-bottom, 20px));
    }

    .name {
        font-size: 2.5rem;
    }

    .avatar {
        width: 120px;
        height: 120px;
    }

    .one-liner {
        font-size: 1.2rem;
    }

    .about-section {
        padding: 32px 20px;
    }

    .about-section::before {
        left: 20px;
    }

    .chat-section {
        padding: 28px 18px;
        padding-top: 50px;
    }

    .chat-badge {
        top: 12px;
        right: 12px;
        font-size: 0.7rem;
        padding: 3px 8px;
    }

    .chat-header {
        gap: 12px;
        padding-bottom: 16px;
        margin-bottom: 16px;
    }

    .digital-avatar {
        width: 52px;
        height: 52px;
    }

    .chat-title h3 {
        font-size: 1rem;
    }

    .chat-messages {
        height: 220px;
    }

    .message-bubble {
        max-width: 85%;
        padding: 10px 14px;
        font-size: 0.98rem;
    }

    .chat-input-wrapper {
        gap: 8px;
    }

    .chat-input {
        padding: 12px 14px;
        font-size: 1rem;
        min-height: 48px;
        line-height: 1.4;
    }

    .chat-input::placeholder {
        font-size: 0.95rem;
    }

    .send-btn {
        padding: 12px 20px;
        font-size: 1rem;
    }

    .quick-btn {
        font-size: 0.85rem;
        padding: 6px 12px;
    }
}