/* ========================================
   东方汉字博物馆 · 品牌官网样式
   东方水墨风 · 宣纸米黄基调
   ======================================== */

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

:root {
    --paper: #f5efe0;
    --paper-light: #faf6ec;
    --paper-dark: #ede4d0;
    --ink: #2b2620;
    --ink-light: #6b6358;
    --ink-soft: #9a9080;
    --seal: #a83232;
    --seal-dark: #8b2828;
    --moss: #4a5d4a;
    --gold: #b8945f;
    --line: #d4cbb8;
    --shadow: rgba(43, 38, 32, 0.08);
    --shadow-hover: rgba(43, 38, 32, 0.15);
    --serif: 'Noto Serif SC', 'STSong', 'SimSun', serif;
    --sans: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    --brush: 'Ma Shan Zheng', cursive;
}

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

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

/* 宣纸纹理背景 */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: 
        radial-gradient(ellipse at 20% 30%, rgba(184, 148, 95, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(74, 93, 74, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

/* ===== 导航栏 ===== */
#navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(245, 239, 224, 0);
    backdrop-filter: blur(0px);
    transition: all 0.4s ease;
    border-bottom: 1px solid transparent;
}

#navbar.scrolled {
    background: rgba(245, 239, 224, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 2px 20px var(--shadow);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--serif);
    font-weight: 600;
    font-size: 1.15rem;
    color: var(--ink);
}

.logo-seal {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--seal);
    color: var(--paper);
    border-radius: 6px;
    font-family: var(--serif);
    font-weight: 700;
    font-size: 1.3rem;
    transform: rotate(-3deg);
    box-shadow: 0 2px 8px rgba(168, 50, 50, 0.3);
    transition: transform 0.3s ease;
}

.nav-logo:hover .logo-seal {
    transform: rotate(0deg) scale(1.05);
}

.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-menu a {
    font-size: 0.95rem;
    color: var(--ink-light);
    position: relative;
    padding: 0.3rem 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%;
    width: 0;
    height: 2px;
    background: var(--seal);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-menu a:hover {
    color: var(--seal);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 0.55rem 1.5rem;
    background: var(--ink);
    color: var(--paper);
    border-radius: 4px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.nav-cta:hover {
    background: var(--seal);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

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

/* ===== Hero 首屏 ===== */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
}

.ink-wash {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.12;
    animation: ink-drift 20s ease-in-out infinite;
}

.ink-1 {
    width: 600px;
    height: 600px;
    background: var(--ink);
    top: -100px;
    left: -150px;
    animation-delay: 0s;
}

.ink-2 {
    width: 500px;
    height: 500px;
    background: var(--seal);
    bottom: -100px;
    right: -100px;
    opacity: 0.08;
    animation-delay: -7s;
}

.ink-3 {
    width: 400px;
    height: 400px;
    background: var(--moss);
    top: 40%;
    right: 20%;
    opacity: 0.06;
    animation-delay: -14s;
}

@keyframes ink-drift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -20px) scale(1.1); }
    66% { transform: translate(-20px, 30px) scale(0.95); }
}

/* 甲骨文字飘浮 */
.oracle-floats {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 1;
    pointer-events: none;
}

.oracle-char {
    position: absolute;
    left: var(--x);
    top: var(--y);
    font-family: var(--brush);
    font-size: calc(3rem * var(--s));
    color: var(--ink);
    opacity: 0.06;
    animation: oracle-float 8s ease-in-out infinite;
    animation-delay: var(--d);
    user-select: none;
}

@keyframes oracle-float {
    0%, 100% { transform: translateY(0) rotate(-2deg); opacity: 0.06; }
    50% { transform: translateY(-15px) rotate(2deg); opacity: 0.1; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 2rem;
    max-width: 800px;
}

.hero-subtitle {
    font-family: var(--sans);
    font-size: 0.9rem;
    color: var(--ink-soft);
    letter-spacing: 0.3em;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeUp 1s ease forwards;
}

.hero-title {
    font-family: var(--serif);
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 900;
    color: var(--ink);
    letter-spacing: 0.15em;
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    gap: 0.05em;
}

.title-char {
    display: inline-block;
    opacity: 0;
    transform: translateY(30px);
    animation: charReveal 0.6s ease forwards;
}

.title-char:nth-child(1) { animation-delay: 0.1s; }
.title-char:nth-child(2) { animation-delay: 0.2s; }
.title-char:nth-child(3) { animation-delay: 0.3s; }
.title-char:nth-child(4) { animation-delay: 0.4s; }
.title-char:nth-child(5) { animation-delay: 0.5s; }
.title-char:nth-child(6) { animation-delay: 0.6s; }
.title-char:nth-child(7) { animation-delay: 0.7s; }

@keyframes charReveal {
    to { opacity: 1; transform: translateY(0); }
}

.hero-slogan {
    font-family: var(--serif);
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    color: var(--seal);
    letter-spacing: 0.1em;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeUp 1s ease 0.8s forwards;
}

.hero-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
    opacity: 0;
    animation: fadeUp 1s ease 1s forwards;
}

.hero-divider .line {
    width: 80px;
    height: 1px;
    background: var(--line);
}

.seal-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--seal);
    color: var(--paper);
    font-family: var(--serif);
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 4px;
    transform: rotate(-2deg);
}

.hero-desc {
    font-family: var(--serif);
    font-size: 1.1rem;
    color: var(--ink-light);
    line-height: 2.2;
    margin-bottom: 2.5rem;
    opacity: 0;
    animation: fadeUp 1s ease 1.2s forwards;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    opacity: 0;
    animation: fadeUp 1s ease 1.4s forwards;
}

.btn-primary {
    padding: 0.85rem 2.2rem;
    background: var(--ink);
    color: var(--paper);
    border-radius: 4px;
    font-family: var(--sans);
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid var(--ink);
}

.btn-primary:hover {
    background: var(--seal);
    border-color: var(--seal);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(168, 50, 50, 0.25);
}

.btn-ghost {
    padding: 0.85rem 2.2rem;
    background: transparent;
    color: var(--ink);
    border-radius: 4px;
    font-family: var(--sans);
    font-size: 0.95rem;
    font-weight: 500;
    border: 2px solid var(--line);
    transition: all 0.3s ease;
}

.btn-ghost:hover {
    border-color: var(--ink);
    background: var(--paper-light);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1rem;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.scroll-hint {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--ink-soft);
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    z-index: 2;
    opacity: 0;
    animation: fadeUp 1s ease 2s forwards;
}

.scroll-arrow {
    width: 1px;
    height: 40px;
    background: var(--ink-soft);
    margin-top: 0.5rem;
    position: relative;
    overflow: hidden;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 40%;
    background: var(--seal);
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0% { top: -40%; }
    100% { top: 100%; }
}

/* ===== 通用 Section ===== */
.section {
    padding: 6rem 0;
    position: relative;
    z-index: 1;
}

.section-alt {
    background: var(--paper-light);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-label {
    display: inline-block;
    font-family: var(--sans);
    font-size: 0.85rem;
    color: var(--seal);
    letter-spacing: 0.3em;
    margin-bottom: 0.8rem;
    padding: 0.2rem 1.2rem;
    border: 1px solid var(--seal);
    border-radius: 20px;
}

.section-title {
    font-family: var(--serif);
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    color: var(--ink);
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

.section-underline {
    width: 60px;
    height: 3px;
    background: var(--seal);
    margin: 0 auto;
    border-radius: 2px;
    position: relative;
}

.section-underline::before,
.section-underline::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 20px;
    height: 1px;
    background: var(--line);
    transform: translateY(-50%);
}

.section-underline::before { right: 100%; margin-right: 8px; }
.section-underline::after { left: 100%; margin-left: 8px; }

/* ===== 关于我们 ===== */
.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    font-family: var(--serif);
    font-size: 1.05rem;
    color: var(--ink-light);
    line-height: 2.2;
    margin-bottom: 1.5rem;
    text-indent: 2em;
}

.about-quote {
    font-family: var(--brush);
    font-size: 1.5rem;
    color: var(--ink);
    text-align: center;
    margin: 2rem 0 0.5rem;
    line-height: 2;
    position: relative;
}

.quote-mark {
    color: var(--seal);
    font-size: 1.8rem;
}

.about-signature {
    text-align: right;
    font-family: var(--serif);
    color: var(--ink-soft);
    font-size: 0.95rem;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.stat-card {
    background: var(--paper-light);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

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

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--shadow-hover);
    border-color: var(--seal);
}

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

.stat-number {
    font-family: var(--serif);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--ink);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-number span {
    font-size: 1.2rem;
    color: var(--seal);
    margin-left: 0.2rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--ink-soft);
    letter-spacing: 0.1em;
}

/* ===== 展区导览 ===== */
.exhibit-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.exhibit-card {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 2.5rem 2rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.exhibit-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 100%;
    height: 0;
    background: linear-gradient(to top, rgba(168, 50, 50, 0.03), transparent);
    transition: height 0.4s ease;
}

.exhibit-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px var(--shadow-hover);
    border-color: var(--seal);
}

.exhibit-card:hover::after {
    height: 100%;
}

.exhibit-icon {
    width: 64px;
    height: 64px;
    color: var(--moss);
    margin-bottom: 1.5rem;
    transition: color 0.3s ease;
}

.exhibit-card:hover .exhibit-icon {
    color: var(--seal);
}

.exhibit-icon svg {
    width: 100%;
    height: 100%;
}

.exhibit-oracle {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-family: var(--brush);
    font-size: 3.5rem;
    color: var(--ink);
    opacity: 0.07;
    transition: opacity 0.3s ease;
    line-height: 1;
}

.exhibit-card:hover .exhibit-oracle {
    opacity: 0.12;
}

.exhibit-card h3 {
    font-family: var(--serif);
    font-size: 1.35rem;
    color: var(--ink);
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.exhibit-card p {
    font-size: 0.92rem;
    color: var(--ink-light);
    line-height: 1.9;
}

/* ===== 藏品精选 ===== */
.collection-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.collection-item {
    background: var(--paper-light);
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.4s ease;
}

.collection-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px var(--shadow-hover);
    border-color: var(--gold);
}

.collection-visual {
    height: 200px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 每件藏品不同的视觉色调 */
.cv-1 { background: linear-gradient(135deg, #e8dcc4, #d4c4a0); }
.cv-2 { background: linear-gradient(135deg, #c9a96e, #a88848); }
.cv-3 { background: linear-gradient(135deg, #d6c5a8, #b8a079); }
.cv-4 { background: linear-gradient(135deg, #c4b896, #9a8a6a); }
.cv-5 { background: linear-gradient(135deg, #b89878, #8a6e50); }
.cv-6 { background: linear-gradient(135deg, #e0d5bc, #c0b088); }

.cv-pattern {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    opacity: 0.15;
    background-image: 
        repeating-linear-gradient(45deg, transparent, transparent 15px, rgba(43,38,32,0.1) 15px, rgba(43,38,32,0.1) 16px),
        radial-gradient(circle at 30% 40%, rgba(43,38,32,0.1) 0%, transparent 40%);
}

.cv-1 .cv-pattern {
    background-image: 
        radial-gradient(ellipse at 50% 50%, rgba(43,38,32,0.15) 0%, transparent 60%);
}

.cv-label {
    font-family: var(--brush);
    font-size: 1.8rem;
    color: rgba(43, 38, 32, 0.4);
    z-index: 1;
    transition: all 0.3s ease;
}

.collection-item:hover .cv-label {
    color: rgba(43, 38, 32, 0.6);
    transform: scale(1.05);
}

.collection-info {
    padding: 1.5rem;
}

.collection-era {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--seal);
    border: 1px solid var(--seal);
    padding: 0.1rem 0.6rem;
    border-radius: 12px;
    margin-bottom: 0.6rem;
}

.collection-info h4 {
    font-family: var(--serif);
    font-size: 1.2rem;
    color: var(--ink);
    margin-bottom: 0.5rem;
}

.collection-info p {
    font-size: 0.88rem;
    color: var(--ink-light);
    line-height: 1.7;
}

/* ===== 活动资讯 ===== */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--line);
}

.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
    padding-left: 2rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -2rem;
    top: 0.5rem;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--paper);
    border: 3px solid var(--line);
    z-index: 1;
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-dot {
    border-color: var(--seal);
    transform: scale(1.2);
}

.dot-highlight {
    background: var(--seal);
    border-color: var(--seal);
    box-shadow: 0 0 0 5px rgba(168, 50, 50, 0.15);
}

.dot-green {
    border-color: var(--moss);
    background: var(--moss);
}

.dot-future {
    border-color: var(--gold);
    background: var(--gold);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(184, 148, 95, 0.3); }
    50% { box-shadow: 0 0 0 8px rgba(184, 148, 95, 0); }
}

.timeline-date {
    font-family: var(--serif);
    font-size: 0.9rem;
    color: var(--ink-soft);
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
}

.timeline-card {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.timeline-card:hover {
    box-shadow: 0 6px 25px var(--shadow);
    border-color: var(--ink-soft);
}

.card-highlight {
    border-color: var(--seal);
    background: linear-gradient(135deg, var(--paper) 0%, rgba(168, 50, 50, 0.03) 100%);
}

.card-future {
    border-style: dashed;
    border-color: var(--gold);
    background: linear-gradient(135deg, var(--paper) 0%, rgba(184, 148, 95, 0.03) 100%);
}

.timeline-tag {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--ink-soft);
    background: var(--paper-dark);
    padding: 0.15rem 0.7rem;
    border-radius: 10px;
    margin-bottom: 0.6rem;
}

.tag-highlight {
    color: var(--paper);
    background: var(--seal);
}

.tag-green {
    color: var(--paper);
    background: var(--moss);
}

.tag-future {
    color: var(--paper);
    background: var(--gold);
}

.timeline-card h4 {
    font-family: var(--serif);
    font-size: 1.15rem;
    color: var(--ink);
    margin-bottom: 0.5rem;
}

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

/* ===== 参观指南 ===== */
.visit-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.visit-card {
    background: var(--paper-light);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 2.5rem 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.visit-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--shadow-hover);
    border-color: var(--moss);
}

.visit-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1.2rem;
    color: var(--moss);
}

.visit-icon svg {
    width: 100%;
    height: 100%;
}

.visit-card h4 {
    font-family: var(--serif);
    font-size: 1.2rem;
    color: var(--ink);
    margin-bottom: 0.8rem;
}

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

.visit-cta {
    background: var(--ink);
    border-radius: 12px;
    padding: 3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    position: relative;
    overflow: hidden;
}

.visit-cta::before {
    content: '字';
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--brush);
    font-size: 12rem;
    color: rgba(245, 239, 224, 0.05);
    line-height: 1;
    pointer-events: none;
}

.visit-cta-text h3 {
    font-family: var(--serif);
    font-size: 1.8rem;
    color: var(--paper);
    margin-bottom: 0.5rem;
}

.visit-cta-text p {
    font-family: var(--serif);
    color: rgba(245, 239, 224, 0.7);
    font-size: 1rem;
}

.visit-cta .btn-primary {
    background: var(--seal);
    border-color: var(--seal);
    white-space: nowrap;
    position: relative;
    z-index: 1;
}

.visit-cta .btn-primary:hover {
    background: var(--paper);
    color: var(--seal);
}

/* ===== 页脚 ===== */
footer {
    background: var(--ink);
    color: rgba(245, 239, 224, 0.7);
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.footer-ink {
    position: absolute;
    top: -100px;
    left: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(168, 50, 50, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    padding: 4rem 0 3rem;
}

.footer-brand p {
    margin-top: 1rem;
    font-size: 0.9rem;
    line-height: 1.8;
    color: rgba(245, 239, 224, 0.5);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--serif);
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--paper);
}

.footer-seal {
    background: var(--seal);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-col h5 {
    font-family: var(--serif);
    color: var(--paper);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.footer-col a {
    display: block;
    font-size: 0.88rem;
    color: rgba(245, 239, 224, 0.5);
    margin-bottom: 0.6rem;
    transition: all 0.3s ease;
}

.footer-col a:hover {
    color: var(--seal);
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid rgba(245, 239, 224, 0.1);
    padding: 1.5rem 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: rgba(245, 239, 224, 0.4);
    letter-spacing: 0.05em;
}

/* ===== 滚动渐入动画 ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    transition-delay: var(--delay, 0s);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 968px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

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

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

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

    .footer-top {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .visit-cta {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(245, 239, 224, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 1.5rem 2rem;
        gap: 1rem;
        transform: translateY(-150%);
        transition: transform 0.4s ease;
        border-bottom: 1px solid var(--line);
    }

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

    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.open span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .nav-toggle.open span:nth-child(2) {
        opacity: 0;
    }
    .nav-toggle.open span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .section {
        padding: 4rem 0;
    }

    .container {
        padding: 0 1.5rem;
    }

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

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

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

    .about-stats {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    .stat-card {
        padding: 1.5rem 1rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .hero-desc {
        font-size: 1rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .footer-links {
        grid-template-columns: 1fr 1fr;
    }

    .visit-cta {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .nav-logo .logo-text {
        display: none;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }
}