/* ============================================
   月德楼国学文化 - 样式表
   设计风格：水墨意境，古典雅致
   ============================================ */

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

:root {
    /* 色彩体系 - 传统中国色 */
    --color-ink: #2c2c2c;           /* 墨色 */
    --color-ink-light: #4a4a4a;     /* 淡墨 */
    --color-tea: #8B7355;           /* 茶褐 */
    --color-tea-light: #a8927a;     /* 浅茶 */
    --color-vermilion: #9e2a2b;     /* 朱砂红 */
    --color-vermilion-light: #c44545; /* 浅朱 */
    --color-rice: #faf8f5;          /* 月白 */
    --color-rice-dark: #f0ebe3;     /* 暗月白 */
    --color-bronze: #708090;        /* 青铜 */
    --color-gold: #b8860b;          /* 赭金 */
    --color-jade: #5a7d6a;          /* 翠色 */

    /* 字体 */
    --font-serif: "Noto Serif SC", "Songti SC", "SimSun", "STSong", serif;
    --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;

    /* 间距 */
    --section-padding: 100px 0;
    --container-max: 1200px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--color-ink);
    background-color: var(--color-rice);
    line-height: 1.8;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(250, 248, 245, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(139, 115, 85, 0.15);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(250, 248, 245, 0.95);
    box-shadow: 0 2px 20px rgba(44, 44, 44, 0.08);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-seal {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-vermilion);
    letter-spacing: 0.15em;
}

.nav-menu {
    display: flex;
    gap: 36px;
}

.nav-link {
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--color-ink-light);
    position: relative;
    padding: 4px 0;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-vermilion);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-vermilion);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-ink);
    transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ===== Hero 首页 ===== */
.hero {
    height: 100vh;
    min-height: 600px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #2c2c2c 40%, #1a2a3a 100%);
    overflow: hidden;
}

/* 水墨纹理背景 */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 30%, rgba(158, 42, 43, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(184, 134, 11, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(90, 125, 106, 0.08) 0%, transparent 60%);
    z-index: 1;
}

/* 山水线条装饰 */
.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40%;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 300' preserveAspectRatio='none'%3E%3Cpath d='M0,300 L0,200 Q150,150 300,180 T600,150 T900,170 T1200,140 L1200,300 Z' fill='%231a1a2e' opacity='0.6'/%3E%3Cpath d='M0,300 L0,250 Q200,220 400,240 T800,220 T1200,230 L1200,300 Z' fill='%231a1a2e' opacity='0.8'/%3E%3C/svg%3E");
    background-size: cover;
    background-position: bottom;
    z-index: 2;
}

.hero-overlay {
    position: relative;
    z-index: 3;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    text-align: center;
    color: var(--color-rice);
    animation: fadeInUp 1.2s ease;
}

.hero-seal {
    margin-bottom: 32px;
}

.seal-circle {
    width: 80px;
    height: 80px;
    margin: 0 auto;
    border: 3px solid var(--color-vermilion);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(158, 42, 43, 0.1);
    transition: transform 0.5s ease;
}

.seal-circle:hover {
    transform: scale(1.05);
}

.seal-text {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--color-vermilion-light);
    font-weight: 700;
    letter-spacing: 0.05em;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    margin-bottom: 16px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    letter-spacing: 0.5em;
    color: var(--color-tea-light);
    margin-bottom: 24px;
}

.hero-divider {
    width: 60px;
    height: 2px;
    background: var(--color-vermilion);
    margin: 0 auto 24px;
}

.hero-desc {
    font-size: 1rem;
    line-height: 2;
    color: rgba(250, 248, 245, 0.8);
    margin-bottom: 36px;
}

.hero-btn {
    display: inline-block;
    padding: 14px 40px;
    border: 2px solid var(--color-vermilion);
    color: var(--color-rice);
    font-family: var(--font-serif);
    font-size: 1rem;
    letter-spacing: 0.1em;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.hero-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-vermilion);
    transition: left 0.4s ease;
    z-index: -1;
}

.hero-btn:hover::before {
    left: 0;
}

.hero-btn:hover {
    color: var(--color-rice);
}

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 4;
    text-align: center;
    color: rgba(250, 248, 245, 0.6);
    font-size: 0.85rem;
    letter-spacing: 0.2em;
}

.scroll-arrow {
    width: 1px;
    height: 30px;
    background: rgba(250, 248, 245, 0.3);
    margin: 8px auto 0;
    position: relative;
    animation: scrollPulse 2s infinite;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: -3px;
    width: 7px;
    height: 7px;
    border-right: 1px solid rgba(250, 248, 245, 0.5);
    border-bottom: 1px solid rgba(250, 248, 245, 0.5);
    transform: rotate(45deg);
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== 通用 Section ===== */
.section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    color: var(--color-ink);
    letter-spacing: 0.15em;
    margin-bottom: 16px;
}

.section-line {
    width: 50px;
    height: 3px;
    background: var(--color-vermilion);
    margin: 0 auto 16px;
}

.section-subtitle {
    font-size: 0.95rem;
    color: var(--color-ink-light);
    letter-spacing: 0.05em;
}

/* ===== 关于 ===== */
.about {
    background: var(--color-rice);
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text {
    font-size: 1rem;
    line-height: 2.2;
    color: var(--color-ink-light);
}

.about-profile {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid rgba(139, 115, 85, 0.2);
}

.avatar-frame {
    position: relative;
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    padding: 5px;
    background: linear-gradient(135deg, var(--color-vermilion) 0%, var(--color-gold) 100%);
    box-shadow: 0 8px 24px rgba(158, 42, 43, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.avatar-frame:hover {
    transform: scale(1.03);
    box-shadow: 0 12px 32px rgba(158, 42, 43, 0.25);
}

.avatar-frame::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 128px;
    height: 128px;
    border: 1px dashed rgba(158, 42, 43, 0.25);
    border-radius: 50%;
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 3px solid var(--color-rice);
    background: white;
}

.profile-caption {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.profile-name {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-ink);
    letter-spacing: 0.1em;
}

.profile-title {
    font-size: 0.9rem;
    color: var(--color-tea);
    letter-spacing: 0.05em;
}

.about-lead {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--color-ink);
    margin-bottom: 20px;
    line-height: 2;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 36px;
    padding-top: 32px;
    border-top: 1px solid rgba(139, 115, 85, 0.2);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-vermilion);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-tea);
    letter-spacing: 0.1em;
}

.about-philosophy {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.philosophy-card {
    background: white;
    padding: 28px;
    border-left: 3px solid var(--color-vermilion);
    box-shadow: 0 4px 20px rgba(44, 44, 44, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.philosophy-card:hover {
    transform: translateX(4px);
    box-shadow: 0 8px 30px rgba(44, 44, 44, 0.08);
}

.philosophy-icon {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--color-vermilion);
    margin-bottom: 8px;
    font-weight: 700;
}

.philosophy-card h3 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--color-ink);
}

.philosophy-card p {
    font-size: 0.9rem;
    color: var(--color-ink-light);
    line-height: 1.8;
}

/* ===== 从业时间线 ===== */
.about-timeline {
    margin-top: 60px;
    padding: 0 20px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 40px 80px 1fr;
    gap: 16px;
    align-items: start;
    padding: 20px 0;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 19px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: rgba(139, 115, 85, 0.2);
}

.timeline-item:first-child::before {
    top: 50%;
}

.timeline-item:last-child::before {
    bottom: 50%;
}

.timeline-dot {
    width: 12px;
    height: 12px;
    background: var(--color-vermilion);
    border-radius: 50%;
    position: relative;
    z-index: 1;
    margin: 6px auto 0;
    box-shadow: 0 0 0 4px rgba(158, 42, 43, 0.15);
}

.timeline-year {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-vermilion);
    padding-top: 2px;
}

.timeline-text h4 {
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--color-ink);
    margin-bottom: 4px;
}

.timeline-text p {
    font-size: 0.9rem;
    color: var(--color-ink-light);
    line-height: 1.8;
}

@media (max-width: 768px) {
    .timeline-item {
        grid-template-columns: 32px 60px 1fr;
        gap: 12px;
    }
    .timeline-year {
        font-size: 1rem;
    }
}

/* ===== 月德楼环境 ===== */
.studio {
    background: var(--color-rice-dark);
}

.studio-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 220px;
    gap: 12px;
}

.studio-item {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(44, 44, 44, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.studio-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(44, 44, 44, 0.12);
}

.studio-item-large {
    grid-column: span 2;
    grid-row: span 2;
}

.studio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.studio-item:hover img {
    transform: scale(1.05);
}

.studio-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px 16px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: white;
    font-size: 0.9rem;
    font-family: var(--font-serif);
    letter-spacing: 0.08em;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.studio-item:hover .studio-caption {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 968px) {
    .studio-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 180px;
    }
    .studio-item-large {
        grid-column: span 2;
        grid-row: span 1;
    }
}

@media (max-width: 480px) {
    .studio-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 200px;
    }
    .studio-item-large {
        grid-column: span 1;
        grid-row: span 1;
    }
}

/* ===== 服务/研究领域 ===== */
.services {
    background: var(--color-rice-dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: white;
    padding: 36px 28px;
    border-radius: 4px;
    box-shadow: 0 4px 20px rgba(44, 44, 44, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--color-vermilion);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(44, 44, 44, 0.1);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-number {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-tea-light);
    margin-bottom: 16px;
    font-weight: 700;
}

.service-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--color-ink);
    margin-bottom: 12px;
    letter-spacing: 0.05em;
}

.service-desc {
    font-size: 0.9rem;
    color: var(--color-ink-light);
    line-height: 1.9;
    margin-bottom: 16px;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.service-tags span {
    font-size: 0.8rem;
    padding: 4px 12px;
    background: var(--color-rice-dark);
    color: var(--color-tea);
    border-radius: 20px;
    letter-spacing: 0.05em;
}

.service-card-quote {
    background: linear-gradient(135deg, var(--color-ink) 0%, #3a3a3a 100%);
    color: var(--color-rice);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.service-card-quote::before {
    display: none;
}

.quote-mark {
    font-family: var(--font-serif);
    font-size: 4rem;
    color: var(--color-vermilion);
    line-height: 1;
    margin-bottom: 8px;
}

.quote-text {
    font-family: var(--font-serif);
    font-size: 1rem;
    line-height: 2;
    color: rgba(250, 248, 245, 0.9);
    margin-bottom: 12px;
}

.quote-author {
    font-size: 0.85rem;
    color: var(--color-tea-light);
    text-align: right;
}

/* ===== 著述 ===== */
.books {
    background: var(--color-rice);
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 36px;
}

.book-card {
    text-align: center;
    transition: transform 0.3s ease;
}

.book-card:hover {
    transform: translateY(-8px);
}

.book-cover {
    width: 100%;
    aspect-ratio: 3/4;
    background: linear-gradient(135deg, #8B7355 0%, #5a4a3a 100%);
    border-radius: 2px 8px 8px 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow:
        -4px 0 0 rgba(0, 0, 0, 0.1),
        0 8px 30px rgba(44, 44, 44, 0.15);
    transition: box-shadow 0.3s ease;
}

.book-card:hover .book-cover {
    box-shadow:
        -4px 0 0 rgba(0, 0, 0, 0.1),
        0 16px 40px rgba(44, 44, 44, 0.2);
}

.book-cover::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 12px;
    bottom: 12px;
    width: 1px;
    background: rgba(255, 255, 255, 0.15);
}

.book-cover::after {
    content: '';
    position: absolute;
    left: 12px;
    right: 12px;
    top: 12px;
    bottom: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.book-title-vertical {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: rgba(250, 248, 245, 0.95);
    writing-mode: vertical-rl;
    letter-spacing: 0.3em;
    font-weight: 600;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* 使用真实封面的书籍卡片 */
.book-cover-image {
    background: none !important;
    padding: 0 !important;
}

.book-cover-image::before,
.book-cover-image::after {
    display: none;
}

.book-cover-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 2px 8px 8px 2px;
    box-shadow:
        -4px 0 0 rgba(0, 0, 0, 0.1),
        0 8px 30px rgba(44, 44, 44, 0.15);
    transition: box-shadow 0.3s ease;
}

.book-card:hover .book-cover-image img {
    box-shadow:
        -4px 0 0 rgba(0, 0, 0, 0.1),
        0 16px 40px rgba(44, 44, 44, 0.2);
}

.book-info {
    margin-top: 20px;
}

.book-info h3 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--color-ink);
    margin-bottom: 6px;
}

.book-info p {
    font-size: 0.85rem;
    color: var(--color-ink-light);
}

/* ===== 联系 ===== */
.contact {
    background: var(--color-rice-dark);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-vermilion);
    box-shadow: 0 4px 12px rgba(44, 44, 44, 0.05);
}

.contact-icon svg {
    width: 22px;
    height: 22px;
}

.contact-text h4 {
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--color-ink);
    margin-bottom: 4px;
}

.contact-text p {
    font-size: 0.9rem;
    color: var(--color-ink-light);
    line-height: 1.7;
}

.contact-cta {
    display: flex;
    align-items: center;
}

.cta-card {
    background: white;
    padding: 40px;
    border-radius: 4px;
    box-shadow: 0 4px 24px rgba(44, 44, 44, 0.06);
    width: 100%;
    text-align: center;
}

.cta-card h3 {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--color-ink);
    margin-bottom: 16px;
}

.cta-card p {
    font-size: 0.95rem;
    color: var(--color-ink-light);
    line-height: 1.9;
    margin-bottom: 16px;
}

.cta-note {
    font-size: 0.8rem !important;
    color: var(--color-tea) !important;
    line-height: 1.8 !important;
    padding: 12px;
    background: var(--color-rice-dark);
    border-radius: 4px;
    margin-bottom: 24px !important;
}

.cta-qr {
    margin: 20px 0;
}

.qr-img {
    width: 160px;
    height: 160px;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(44, 44, 44, 0.1);
    border: 3px solid var(--color-rice-dark);
    object-fit: contain;
    background: #fff;
    padding: 2px;
    transition: transform 0.3s ease;
}

.qr-img:hover {
    transform: scale(1.05);
}

.qr-hint {
    margin-top: 10px;
    font-size: 0.8rem !important;
    color: var(--color-tea) !important;
    letter-spacing: 0.05em;
}

.cta-btn {
    display: inline-block;
    padding: 12px 36px;
    background: var(--color-vermilion);
    color: white !important;
    font-family: var(--font-serif);
    font-size: 1rem;
    letter-spacing: 0.1em;
    border-radius: 2px;
    transition: background 0.3s ease, transform 0.3s ease;
}

.cta-btn:hover {
    background: var(--color-vermilion-light);
    transform: translateY(-2px);
}

/* ===== 页脚 ===== */
.footer {
    background: var(--color-ink);
    color: rgba(250, 248, 245, 0.7);
    padding: 48px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.footer-brand {
    text-align: center;
}

.footer-seal {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-vermilion-light);
    display: block;
    margin-bottom: 8px;
}

.footer-brand p {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    letter-spacing: 0.1em;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.footer-links a {
    font-size: 0.9rem;
    color: rgba(250, 248, 245, 0.6);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-vermilion-light);
}

.footer-copy {
    text-align: center;
}

.footer-copy p {
    font-size: 0.8rem;
    color: rgba(250, 248, 245, 0.4);
    line-height: 1.8;
}

.footer-disclaimer {
    margin-top: 4px;
    font-size: 0.75rem !important;
}

.footer-icp {
    margin-top: 4px;
}

.footer-icp a {
    font-size: 0.8rem;
    color: rgba(250, 248, 245, 0.4);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-icp a:hover {
    color: rgba(250, 248, 245, 0.7);
}

/* ===== 文章板块（主页） ===== */
.articles {
    background: var(--color-rice);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.article-card {
    background: white;
    padding: 32px 28px;
    border-radius: 4px;
    box-shadow: 0 4px 20px rgba(44, 44, 44, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
    display: block;
    text-decoration: none;
    color: inherit;
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-vermilion);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.4s ease;
}

.article-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(44, 44, 44, 0.1);
}

.article-card:hover::before {
    transform: scaleY(1);
}

.article-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.article-card-category {
    font-size: 0.78rem;
    padding: 3px 10px;
    background: var(--color-rice-dark);
    color: var(--color-tea);
    border-radius: 20px;
    letter-spacing: 0.05em;
}

.article-card-date {
    font-size: 0.8rem;
    color: var(--color-tea-light);
}

.article-card-title {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    color: var(--color-ink);
    margin-bottom: 12px;
    line-height: 1.6;
    letter-spacing: 0.03em;
}

.article-card-desc {
    font-size: 0.9rem;
    color: var(--color-ink-light);
    line-height: 1.8;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card-read {
    font-size: 0.85rem;
    color: var(--color-vermilion);
    font-family: var(--font-serif);
    letter-spacing: 0.05em;
}

.article-card-coming {
    opacity: 0.7;
    cursor: default;
}

.article-card-coming:hover {
    transform: none;
    box-shadow: 0 4px 20px rgba(44, 44, 44, 0.05);
}

.article-card-coming::before {
    display: none;
}

.article-card-status {
    font-size: 0.85rem;
    color: var(--color-tea-light);
    font-style: italic;
}

/* ===== 文章分类区 ===== */
.article-category {
    margin-bottom: 48px;
}

.article-category:last-child {
    margin-bottom: 0;
}

.category-header-link {
    text-decoration: none;
    color: inherit;
    display: block;
    margin-bottom: 8px;
}
.category-header-link:hover .category-title {
    color: #8B4513;
}
.category-header-link:hover .category-icon {
    transform: scale(1.1);
}
.category-header {
    display: flex;
    align-items: center;
    gap: 16px;
}

.category-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: white;
    flex-shrink: 0;
}

.category-icon.geo {
    background: #8B4513;
}

.category-icon.date {
    background: #2F4F4F;
}

.category-icon.bazi {
    background: #800020;
}

.category-icon.face {
    background: #4A235A;
}

.category-title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: var(--color-ink);
    letter-spacing: 0.06em;
    margin: 0;
}

.category-desc {
    font-size: 0.88rem;
    color: var(--color-tea);
    margin-bottom: 20px;
    padding-left: 56px;
    line-height: 1.6;
}

.category-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(to right, var(--color-vermilion), transparent);
    margin-bottom: 24px;
}

.articles-grid-small {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.coming-soon {
    grid-column: 1 / -1;
    text-align: center;
    padding: 36px 20px;
    color: var(--color-tea-light);
    font-size: 0.95rem;
    background: white;
    border-radius: 4px;
    box-shadow: 0 2px 12px rgba(44, 44, 44, 0.04);
    border: 1px dashed #d0c8b8;
    letter-spacing: 0.04em;
}

/* 分类"查看全部"链接 */
.category-more {
    display: inline-block;
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--color-vermilion);
    letter-spacing: 0.05em;
    text-decoration: none;
    transition: color 0.2s, transform 0.2s;
    font-family: var(--font-serif);
}
.category-more:hover {
    color: var(--color-vermilion-dark);
    transform: translateX(4px);
}
.category-more::after {
    content: ' →';
    margin-left: 4px;
}

/* 响应式：分类区 */
@media (max-width: 768px) {
    .articles-grid-small {
        grid-template-columns: 1fr;
    }
    .category-desc {
        padding-left: 0;
    }
}

/* ===== 文章详情页 ===== */
.article-hero {
    margin-top: 64px;
    padding: 80px 0 60px;
    background: var(--color-ink);
    position: relative;
    overflow: hidden;
}

.article-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(158, 42, 43, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 50%, rgba(184, 134, 11, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.article-hero-overlay {
    position: relative;
    z-index: 2;
}

.article-meta {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-bottom: 24px;
}

.article-category {
    font-size: 0.85rem;
    padding: 4px 14px;
    background: rgba(158, 42, 43, 0.2);
    color: var(--color-vermilion-light);
    border-radius: 20px;
    letter-spacing: 0.05em;
}

.article-date {
    font-size: 0.85rem;
    color: var(--color-tea-light);
}

.article-title {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-rice);
    line-height: 1.5;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}

.article-subtitle {
    font-size: 1.05rem;
    color: rgba(250, 248, 245, 0.7);
    line-height: 1.8;
    margin-bottom: 20px;
    max-width: 700px;
}

.article-author {
    font-size: 0.9rem;
    color: var(--color-tea-light);
    font-family: var(--font-serif);
    letter-spacing: 0.05em;
}

/* 文章正文 */
.article-body {
    padding: 60px 0 80px;
    background: var(--color-rice);
}

.container-narrow {
    max-width: 780px;
    margin: 0 auto;
}

.article-section {
    margin-bottom: 48px;
}

.article-section h2 {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: var(--color-ink);
    margin-bottom: 20px;
    letter-spacing: 0.06em;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-vermilion);
    display: inline-block;
}

.article-section p {
    font-size: 1.02rem;
    color: var(--color-ink-light);
    line-height: 2.1;
    margin-bottom: 16px;
}

.em {
    color: var(--color-vermilion);
    font-weight: 600;
}

.article-list {
    list-style: none;
    margin: 16px 0;
    padding-left: 0;
}

.article-list li {
    font-size: 1rem;
    color: var(--color-ink-light);
    line-height: 2;
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
}

.article-list li::before {
    content: '◆';
    position: absolute;
    left: 0;
    top: 8px;
    font-size: 0.55rem;
    color: var(--color-vermilion);
}

/* 古籍引用块 */
.classical-quote {
    background: white;
    border-left: 4px solid var(--color-vermilion);
    padding: 24px 28px;
    margin: 24px 0;
    box-shadow: 0 4px 16px rgba(44, 44, 44, 0.04);
}

.classical-quote p {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--color-ink) !important;
    line-height: 2;
    margin-bottom: 12px !important;
}

.classical-quote cite {
    font-size: 0.85rem;
    color: var(--color-tea);
    font-style: normal;
    display: block;
    text-align: right;
}

/* 九星网格 */
.nine-star-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin: 20px 0;
}

.star-item {
    background: white;
    padding: 16px;
    border-radius: 4px;
    text-align: center;
    box-shadow: 0 2px 12px rgba(44, 44, 44, 0.04);
    transition: transform 0.2s ease;
}

.star-item:hover {
    transform: translateY(-2px);
}

.star-name {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-vermilion);
    margin-bottom: 4px;
    letter-spacing: 0.1em;
}

.star-desc {
    font-size: 0.8rem;
    color: var(--color-ink-light);
}

/* 文章底部 CTA */
.article-cta {
    background: white;
    padding: 36px;
    border-radius: 4px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(44, 44, 44, 0.05);
    margin-top: 60px;
}

.article-cta p {
    margin-bottom: 20px !important;
}

/* ===== 响应式 ===== */
@media (max-width: 968px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-profile {
        justify-content: center;
        gap: 20px;
    }

    .avatar-frame {
        width: 100px;
        height: 100px;
    }

    .avatar-frame::before {
        width: 108px;
        height: 108px;
    }

    .profile-name {
        font-size: 1.3rem;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .books-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 24px;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }

    .article-title {
        font-size: 1.7rem;
    }

    .nine-star-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }

    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        width: 100%;
        background: rgba(250, 248, 245, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        transform: translateY(-150%);
        transition: transform 0.4s ease;
        border-bottom: 1px solid rgba(139, 115, 85, 0.15);
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        letter-spacing: 0.3em;
    }

    .hero-desc {
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.7rem;
    }

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

    .books-grid {
        grid-template-columns: 1fr;
        max-width: 280px;
        margin: 0 auto;
    }

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

    .about-stats {
        flex-wrap: wrap;
        gap: 24px;
        justify-content: center;
    }

    .about-profile {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 12px;
    }

    .avatar-frame {
        width: 110px;
        height: 110px;
    }

    .avatar-frame::before {
        width: 118px;
        height: 118px;
    }

    .contact-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .cta-card {
        padding: 28px 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .seal-circle {
        width: 64px;
        height: 64px;
    }

    .seal-text {
        font-size: 0.9rem;
    }

    .hero-btn {
        padding: 12px 28px;
        font-size: 0.9rem;
    }

    .article-title {
        font-size: 1.4rem;
    }

    .article-hero {
        padding: 50px 0 36px;
    }

    .nine-star-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .classical-quote {
        padding: 18px 20px;
    }

    .classical-quote p {
        font-size: 1rem;
    }
}

/* ===== 文章顶部二维码引流 ===== */
.article-top-qr {
    display: flex;
    align-items: center;
    gap: 16px;
    background: white;
    padding: 16px 20px;
    border-radius: 6px;
    box-shadow: 0 2px 12px rgba(44, 44, 44, 0.05);
    margin-bottom: 40px;
    border: 1px solid rgba(139, 115, 85, 0.12);
}

.article-top-qr img {
    width: 72px;
    height: 72px;
    object-fit: contain;
    border-radius: 4px;
    flex-shrink: 0;
}

.article-top-qr-text {
    flex: 1;
}

.article-top-qr-text .qr-tip {
    font-size: 0.9rem;
    color: var(--color-ink);
    font-weight: 600;
    margin-bottom: 4px;
}

.article-top-qr-text .qr-desc {
    font-size: 0.8rem;
    color: var(--color-tea);
    line-height: 1.6;
}

@media (max-width: 480px) {
    .article-top-qr {
        flex-direction: column;
        text-align: center;
        padding: 20px 16px;
    }
    .article-top-qr img {
        width: 80px;
        height: 80px;
    }
}

/* ===== 手机端悬浮微信按钮 ===== */
.floating-wechat {
    position: fixed;
    right: 16px;
    bottom: 80px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.floating-wechat-btn {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--color-vermilion);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(158, 42, 43, 0.35);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    color: white;
}

.floating-wechat-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 20px rgba(158, 42, 43, 0.45);
}

.floating-wechat-btn svg {
    width: 26px;
    height: 26px;
    fill: white;
}

.floating-wechat-label {
    font-size: 11px;
    color: var(--color-vermilion);
    font-weight: 600;
    letter-spacing: 0.04em;
    text-align: center;
    line-height: 1.3;
}

/* 悬浮二维码弹窗 */
.floating-qr-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.floating-qr-popup.show {
    display: flex;
}

.floating-qr-card {
    background: white;
    border-radius: 12px;
    padding: 32px 24px 24px;
    text-align: center;
    max-width: 300px;
    width: 90%;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    position: relative;
}

.floating-qr-card img {
    width: 200px;
    height: 200px;
    object-fit: contain;
    border-radius: 8px;
    margin-bottom: 16px;
}

.floating-qr-card .qr-card-title {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    color: var(--color-ink);
    margin-bottom: 6px;
    letter-spacing: 0.04em;
}

.floating-qr-card .qr-card-desc {
    font-size: 0.85rem;
    color: var(--color-tea);
    margin-bottom: 16px;
}

.floating-qr-close {
    position: absolute;
    top: 8px;
    right: 12px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: #f0f0f0;
    cursor: pointer;
    font-size: 18px;
    color: var(--color-tea);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.floating-qr-close:hover {
    background: #e0e0e0;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 桌面端隐藏悬浮按钮 */
@media (min-width: 769px) {
    .floating-wechat {
        display: none;
    }
}

/* ===== 分类目录页 ===== */
.dir-hero {
    margin-top: 64px;
    padding: 64px 0 48px;
    position: relative;
    overflow: hidden;
}
.dir-hero.geo-bg { background: linear-gradient(135deg, #3e2723 0%, #5d4037 50%, #4e342e 100%); }
.dir-hero.date-bg { background: linear-gradient(135deg, #1a2a2a 0%, #2f4f4f 50%, #1c3535 100%); }
.dir-hero.bazi-bg { background: linear-gradient(135deg, #2d0a16 0%, #800020 50%, #4a0e1e 100%); }
.dir-hero.face-bg { background: linear-gradient(135deg, #1a0d24 0%, #4a235a 50%, #311b3e 100%); }
.dir-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: radial-gradient(ellipse at 30% 50%, rgba(158, 42, 43, 0.08) 0%, transparent 60%);
    pointer-events: none;
}
.dir-hero-overlay { position: relative; z-index: 2; }
.dir-hero-icon {
    width: 56px; height: 56px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; color: white; margin: 0 auto 20px;
}
.dir-hero-icon.geo { background: #8B4513; }
.dir-hero-icon.date { background: #2F4F4F; }
.dir-hero-icon.bazi { background: #800020; }
.dir-hero-icon.face { background: #4A235A; }
.dir-hero h1 {
    font-family: var(--font-serif);
    font-size: 2.2rem; font-weight: 700; color: var(--color-rice);
    text-align: center; letter-spacing: 0.1em; margin-bottom: 12px;
}
.dir-hero .dir-hero-desc {
    font-size: 1rem; color: rgba(250, 248, 245, 0.65);
    text-align: center; max-width: 600px; margin: 0 auto;
    line-height: 1.8;
}
.dir-hero .dir-hero-count {
    text-align: center; margin-top: 16px;
    font-size: 0.85rem; color: rgba(250, 248, 245, 0.45);
}

.dir-body {
    padding: 60px 0 80px;
    background: var(--color-rice);
}
.dir-list {
    display: flex; flex-direction: column; gap: 20px;
    margin-bottom: 48px;
}
.dir-item {
    display: block;
    background: white; padding: 28px 32px;
    border-radius: 6px;
    box-shadow: 0 2px 16px rgba(44, 44, 44, 0.04);
    border-left: 4px solid transparent;
    text-decoration: none;
    transition: all 0.25s ease;
}
.dir-item:hover {
    transform: translateX(6px);
    box-shadow: 0 6px 24px rgba(44, 44, 44, 0.08);
}
.dir-item.geo { border-left-color: #8B4513; }
.dir-item.date { border-left-color: #2F4F4F; }
.dir-item.bazi { border-left-color: #800020; }
.dir-item.face { border-left-color: #4A235A; }
.dir-item-meta {
    display: flex; align-items: center; gap: 12px; margin-bottom: 10px;
}
.dir-item-category {
    font-size: 0.8rem; padding: 3px 10px;
    border-radius: 12px; letter-spacing: 0.04em;
}
.dir-item-category.geo { background: rgba(139, 69, 19, 0.1); color: #8B4513; }
.dir-item-category.date { background: rgba(47, 79, 79, 0.1); color: #2F4F4F; }
.dir-item-category.bazi { background: rgba(128, 0, 32, 0.1); color: #800020; }
.dir-item-category.face { background: rgba(74, 35, 90, 0.1); color: #4A235A; }
.dir-item-date {
    font-size: 0.82rem; color: var(--color-tea-light);
}
.dir-item-title {
    font-family: var(--font-serif);
    font-size: 1.25rem; color: var(--color-ink);
    letter-spacing: 0.05em; margin-bottom: 8px;
    transition: color 0.2s;
}
.dir-item:hover .dir-item-title { color: var(--color-vermilion); }
.dir-item-desc {
    font-size: 0.92rem; color: var(--color-tea);
    line-height: 1.7;
}
.dir-item-arrow {
    display: inline-block; margin-top: 12px;
    font-size: 0.88rem; color: var(--color-vermilion);
    letter-spacing: 0.04em;
}

/* 目录页空状态 */
.dir-empty {
    text-align: center; padding: 48px 20px;
    color: var(--color-tea-light); font-size: 0.95rem;
    background: white; border-radius: 4px;
    box-shadow: 0 2px 12px rgba(44,44,44,0.04);
    border: 1px dashed #d0c8b8;
    letter-spacing: 0.04em;
}

@media (max-width: 768px) {
    .dir-hero { padding: 48px 0 36px; }
    .dir-hero h1 { font-size: 1.6rem; }
    .dir-hero .dir-hero-desc { font-size: 0.9rem; }
    .dir-item { padding: 22px 20px; }
    .dir-item-title { font-size: 1.1rem; }
}