/* =============================================
   17C 复古摄影平台 - 主样式文件
   复古摄影·怀旧胶片·文艺摄影美学风格
   ============================================= */

/* 字体引入 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500&display=swap');

/* CSS变量 */
:root {
    --cream: #F5F0E8;
    --beige: #E8DFC8;
    --warm-beige: #D4C5A0;
    --dark-brown: #3D2B1F;
    --medium-brown: #6B4C35;
    --light-brown: #A07850;
    --warm-orange: #C8824A;
    --dark-red: #8B3A2A;
    --soft-gray: #B0A898;
    --text-dark: #2C1F15;
    --text-medium: #5A4535;
    --text-light: #8B7355;
    --border-color: #C8B89A;
    --shadow-warm: rgba(61, 43, 31, 0.15);
    --film-grain: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.05'/%3E%3C/svg%3E");
}

/* 全局重置 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: 'Noto Serif SC', 'SimSun', serif;
    background-color: var(--cream);
    color: var(--text-dark);
    line-height: 1.8;
    overflow-x: hidden;
    position: relative;
}

/* 胶片颗粒背景纹理 */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: url('../images/film-strip-bg.jpg');
    background-size: 400px;
    opacity: 0.03;
    pointer-events: none;
    z-index: 9999;
}

/* =============================================
   排版基础
   ============================================= */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Noto Serif SC', serif;
    color: var(--dark-brown);
    line-height: 1.4;
    font-weight: 600;
}

h1 { font-size: 2.4rem; }
h2 { font-size: 1.9rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.2rem; }

p {
    color: var(--text-medium);
    line-height: 1.9;
    margin-bottom: 1rem;
}

a {
    color: var(--medium-brown);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--warm-orange);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* =============================================
   顶部导航
   ============================================= */
.site-header {
    background: linear-gradient(135deg, var(--dark-brown) 0%, #2A1A10 100%);
    border-bottom: 3px solid var(--warm-orange);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.site-logo img {
    height: 48px;
    width: auto;
    filter: brightness(1.2) contrast(0.9);
}

.logo-text {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--cream);
    letter-spacing: 0.05em;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
}

.logo-text span {
    color: var(--warm-orange);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 0;
}

.main-nav a {
    color: var(--beige);
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 3px;
    transition: all 0.3s ease;
    letter-spacing: 0.05em;
    position: relative;
    white-space: nowrap;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%; right: 50%;
    height: 2px;
    background: var(--warm-orange);
    transition: all 0.3s ease;
}

.main-nav a:hover {
    color: var(--warm-orange);
    background: rgba(200, 130, 74, 0.1);
}

.main-nav a:hover::after {
    left: 10%; right: 10%;
}

.main-nav a.active {
    color: var(--warm-orange);
}

/* 汉堡菜单 */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--cream);
    transition: all 0.3s ease;
}

/* =============================================
   搜索框
   ============================================= */
.search-bar-section {
    background: var(--beige);
    border-bottom: 1px solid var(--border-color);
    padding: 0.8rem 0;
}

.search-bar-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: center;
}

.search-form {
    display: flex;
    width: 100%;
    max-width: 600px;
    border: 2px solid var(--warm-beige);
    border-radius: 30px;
    overflow: hidden;
    background: var(--cream);
    box-shadow: inset 0 2px 6px rgba(0,0,0,0.05);
    transition: border-color 0.3s ease;
}

.search-form:focus-within {
    border-color: var(--warm-orange);
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 0.6rem 1.2rem;
    font-family: 'Noto Serif SC', serif;
    font-size: 0.9rem;
    color: var(--text-dark);
    outline: none;
}

.search-input::placeholder {
    color: var(--soft-gray);
    font-style: italic;
}

.search-btn {
    background: var(--dark-brown);
    color: var(--cream);
    border: none;
    padding: 0.6rem 1.4rem;
    cursor: pointer;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    transition: background 0.3s ease;
    font-family: 'Noto Serif SC', serif;
}

.search-btn:hover {
    background: var(--warm-orange);
}

/* =============================================
   首屏 Banner
   ============================================= */
.hero-banner {
    position: relative;
    height: 85vh;
    min-height: 500px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: sepia(0.3) brightness(0.7);
    transform: scale(1.05);
    transition: transform 8s ease;
}

.hero-banner:hover .hero-bg {
    transform: scale(1.0);
}

/* 胶片边框效果 */
.hero-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(to right, rgba(0,0,0,0.6) 0%, transparent 8%, transparent 92%, rgba(0,0,0,0.6) 100%),
        linear-gradient(to bottom, rgba(0,0,0,0.5) 0%, transparent 10%, transparent 90%, rgba(0,0,0,0.5) 100%);
    z-index: 2;
    pointer-events: none;
}

/* 暗角效果 */
.hero-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 50%, rgba(0,0,0,0.6) 100%);
    z-index: 2;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--cream);
    padding: 2rem;
    max-width: 800px;
}

.hero-tag {
    display: inline-block;
    background: rgba(200, 130, 74, 0.85);
    color: var(--cream);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    padding: 0.3rem 1rem;
    margin-bottom: 1.2rem;
    text-transform: uppercase;
    border: 1px solid rgba(255,255,255,0.3);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--cream);
    text-shadow: 2px 2px 8px rgba(0,0,0,0.7);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.hero-title span {
    color: var(--warm-orange);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(245, 240, 232, 0.9);
    margin-bottom: 2rem;
    font-style: italic;
    letter-spacing: 0.05em;
    text-shadow: 1px 1px 4px rgba(0,0,0,0.5);
}

.hero-btns {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--warm-orange);
    color: var(--cream);
    padding: 0.8rem 2rem;
    border: 2px solid var(--warm-orange);
    font-family: 'Noto Serif SC', serif;
    font-size: 0.95rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover {
    background: transparent;
    color: var(--warm-orange);
}

.btn-outline {
    background: transparent;
    color: var(--cream);
    padding: 0.8rem 2rem;
    border: 2px solid rgba(245, 240, 232, 0.7);
    font-family: 'Noto Serif SC', serif;
    font-size: 0.95rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-outline:hover {
    border-color: var(--warm-orange);
    color: var(--warm-orange);
}

/* =============================================
   通用区块样式
   ============================================= */
.section {
    padding: 5rem 0;
}

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

.section-dark {
    background: var(--dark-brown);
    color: var(--cream);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-tag {
    display: inline-block;
    color: var(--warm-orange);
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    margin-bottom: 0.8rem;
    font-family: 'Noto Sans SC', sans-serif;
}

.section-title {
    font-size: 2rem;
    color: var(--dark-brown);
    margin-bottom: 0.8rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 2px;
    background: var(--warm-orange);
    margin: 0.8rem auto 0;
}

.section-dark .section-title {
    color: var(--cream);
}

.section-desc {
    color: var(--text-light);
    font-size: 0.95rem;
    max-width: 600px;
    margin: 0 auto;
    font-style: italic;
}

/* =============================================
   视频卡片
   ============================================= */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.video-card {
    background: var(--cream);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: 0 4px 15px var(--shadow-warm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    position: relative;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(61, 43, 31, 0.25);
}

.video-thumb {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
    background: var(--dark-brown);
}

.video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease, filter 0.3s ease;
    filter: sepia(0.2) brightness(0.9);
}

/* 胶片颗粒悬停效果 */
.video-thumb::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at center, transparent 40%, rgba(0,0,0,0.5) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 2;
    pointer-events: none;
}

/* 胶片颗粒动画 */
.video-thumb::after {
    content: '';
    position: absolute;
    inset: -50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.15'/%3E%3C/svg%3E");
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 3;
    pointer-events: none;
    animation: filmGrain 0.2s steps(2) infinite;
}

.video-card:hover .video-thumb::before {
    opacity: 1;
}

.video-card:hover .video-thumb::after {
    opacity: 1;
}

.video-card:hover .video-thumb img {
    transform: scale(1.05);
    filter: sepia(0.5) brightness(0.75) contrast(1.1);
}

@keyframes filmGrain {
    0% { transform: translate(0, 0); }
    25% { transform: translate(-2%, -1%); }
    50% { transform: translate(1%, 2%); }
    75% { transform: translate(-1%, 1%); }
    100% { transform: translate(2%, -2%); }
}

/* 播放按钮 */
.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    width: 56px;
    height: 56px;
    background: rgba(200, 130, 74, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 4;
    border: 2px solid rgba(245, 240, 232, 0.8);
}

.play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent var(--cream);
    margin-left: 4px;
}

.video-card:hover .play-btn {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* 视频时长标签 */
.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.75);
    color: var(--cream);
    font-size: 0.75rem;
    padding: 2px 6px;
    z-index: 4;
    font-family: 'Noto Sans SC', sans-serif;
}

.video-info {
    padding: 1.2rem;
}

.video-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--dark-brown);
    margin-bottom: 0.5rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.78rem;
    color: var(--text-light);
    font-family: 'Noto Sans SC', sans-serif;
}

.video-meta span {
    display: flex;
    align-items: center;
    gap: 3px;
}

/* =============================================
   摄影作品墙
   ============================================= */
.photo-wall {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.photo-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1;
    cursor: pointer;
}

.photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: sepia(0.2) brightness(0.9);
    transition: all 0.4s ease;
}

.photo-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 40%, rgba(0,0,0,0.45) 100%);
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.photo-item:hover img {
    transform: scale(1.08);
    filter: sepia(0.4) brightness(0.8) contrast(1.1);
}

.photo-item:hover::after {
    opacity: 0.3;
}

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

/* =============================================
   摄影师卡片
   ============================================= */
.photographer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 2rem;
}

.photographer-card {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--cream);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.photographer-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--warm-orange), var(--dark-red));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.photographer-card:hover {
    box-shadow: 0 8px 25px var(--shadow-warm);
    transform: translateY(-3px);
}

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

.photographer-avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 1rem;
    border: 3px solid var(--warm-beige);
    filter: sepia(0.2);
}

.photographer-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photographer-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark-brown);
    margin-bottom: 0.3rem;
}

.photographer-title {
    font-size: 0.8rem;
    color: var(--warm-orange);
    margin-bottom: 0.6rem;
    letter-spacing: 0.05em;
}

.photographer-desc {
    font-size: 0.82rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* =============================================
   用户评价
   ============================================= */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.review-card {
    background: var(--cream);
    border: 1px solid var(--border-color);
    padding: 1.8rem;
    position: relative;
    transition: box-shadow 0.3s ease;
}

.review-card::before {
    content: '\201C';
    position: absolute;
    top: 10px;
    left: 15px;
    font-size: 4rem;
    color: var(--warm-beige);
    font-family: Georgia, serif;
    line-height: 1;
}

.review-card:hover {
    box-shadow: 0 6px 20px var(--shadow-warm);
}

.review-text {
    font-size: 0.88rem;
    color: var(--text-medium);
    line-height: 1.8;
    margin-bottom: 1.2rem;
    padding-top: 1rem;
    font-style: italic;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.review-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--warm-beige);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--dark-brown);
    font-weight: 600;
    flex-shrink: 0;
}

.review-name {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--dark-brown);
}

.review-location {
    font-size: 0.75rem;
    color: var(--text-light);
}

.review-stars {
    color: var(--warm-orange);
    font-size: 0.8rem;
    margin-top: 2px;
}

/* =============================================
   FAQ 手风琴
   ============================================= */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--border-color);
    margin-bottom: 0.8rem;
    background: var(--cream);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 1.2rem 1.5rem;
    text-align: left;
    font-family: 'Noto Serif SC', serif;
    font-size: 0.95rem;
    color: var(--dark-brown);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
    font-weight: 500;
}

.faq-question:hover {
    background: var(--beige);
}

.faq-question .faq-icon {
    width: 20px;
    height: 20px;
    border: 1px solid var(--warm-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform 0.3s ease;
    color: var(--warm-orange);
    font-size: 0.9rem;
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-answer-inner {
    padding: 0 1.5rem 1.2rem;
    font-size: 0.88rem;
    color: var(--text-medium);
    line-height: 1.8;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.faq-item.open .faq-answer {
    max-height: 300px;
}

/* =============================================
   合作伙伴
   ============================================= */
.partners-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
}

.partner-item {
    background: var(--cream);
    border: 1px solid var(--border-color);
    padding: 1rem 2rem;
    font-size: 0.9rem;
    color: var(--text-medium);
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
    font-family: 'Noto Sans SC', sans-serif;
}

.partner-item:hover {
    border-color: var(--warm-orange);
    color: var(--dark-brown);
    box-shadow: 0 4px 12px var(--shadow-warm);
}

/* =============================================
   品牌故事模块
   ============================================= */
.story-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.story-image {
    position: relative;
    overflow: hidden;
}

.story-image img {
    width: 100%;
    filter: sepia(0.25) brightness(0.9);
    border: 8px solid var(--cream);
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.story-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 50%, rgba(0,0,0,0.3) 100%);
    pointer-events: none;
}

.story-content .story-quote {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--medium-brown);
    border-left: 3px solid var(--warm-orange);
    padding-left: 1.2rem;
    margin: 1.5rem 0;
    line-height: 1.8;
}

/* =============================================
   AI滤镜模块
   ============================================= */
.ai-filter-showcase {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.filter-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.3s ease;
}

.filter-item:hover {
    border-color: var(--warm-orange);
}

.filter-item img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    transition: filter 0.4s ease;
}

.filter-item:nth-child(1) img { filter: sepia(0.8) brightness(0.9); }
.filter-item:nth-child(2) img { filter: sepia(0.4) saturate(0.6) brightness(0.85); }
.filter-item:nth-child(3) img { filter: sepia(0.6) hue-rotate(15deg) brightness(0.9); }

.filter-label {
    position: absolute;
    bottom: 0;
    left: 0; right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: var(--cream);
    padding: 1.5rem 1rem 0.8rem;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

/* =============================================
   联系模块
   ============================================= */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
}

.contact-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(245, 240, 232, 0.2);
    padding: 2rem;
    text-align: center;
}

.contact-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--warm-orange);
}

.contact-label {
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    color: var(--soft-gray);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.contact-value {
    font-size: 0.95rem;
    color: var(--cream);
}

/* QR码占位 */
.qr-placeholder {
    width: 100px;
    height: 100px;
    background: var(--cream);
    margin: 0.8rem auto 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: var(--dark-brown);
    text-align: center;
    padding: 5px;
    line-height: 1.3;
}

/* =============================================
   页脚
   ============================================= */
.site-footer {
    background: #1A0F08;
    color: var(--soft-gray);
    padding: 3rem 0 1.5rem;
    border-top: 3px solid var(--dark-brown);
}

.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(245, 240, 232, 0.1);
}

.footer-brand .footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--cream);
    margin-bottom: 0.8rem;
    font-family: 'Noto Serif SC', serif;
}

.footer-brand .footer-logo span {
    color: var(--warm-orange);
}

.footer-brand p {
    font-size: 0.82rem;
    color: var(--soft-gray);
    line-height: 1.8;
}

.footer-col h4 {
    color: var(--cream);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col ul li a {
    color: var(--soft-gray);
    font-size: 0.82rem;
    transition: color 0.3s ease;
}

.footer-col ul li a:hover {
    color: var(--warm-orange);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.78rem;
    color: rgba(176, 168, 152, 0.6);
}

.footer-bottom a {
    color: rgba(176, 168, 152, 0.6);
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: var(--warm-orange);
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    color: var(--soft-gray);
    font-size: 0.82rem;
    transition: color 0.3s ease;
}

.footer-social a:hover {
    color: var(--warm-orange);
}

/* =============================================
   面包屑
   ============================================= */
.breadcrumb {
    background: var(--beige);
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    font-size: 0.82rem;
    color: var(--text-light);
}

.breadcrumb-inner a {
    color: var(--text-light);
    transition: color 0.3s ease;
}

.breadcrumb-inner a:hover {
    color: var(--warm-orange);
}

.breadcrumb-inner span {
    margin: 0 0.4rem;
    color: var(--warm-beige);
}

/* =============================================
   内页 Hero
   ============================================= */
.page-hero {
    background: linear-gradient(135deg, var(--dark-brown) 0%, #2A1A10 100%);
    padding: 4rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    filter: sepia(1);
}

.page-hero-content {
    position: relative;
    z-index: 1;
}

.page-hero h1 {
    color: var(--cream);
    font-size: 2.2rem;
    margin-bottom: 0.8rem;
}

.page-hero p {
    color: var(--soft-gray);
    font-style: italic;
    font-size: 1rem;
}

/* =============================================
   文章卡片
   ============================================= */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.article-card {
    background: var(--cream);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all 0.3s ease;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px var(--shadow-warm);
}

.article-thumb {
    aspect-ratio: 16/9;
    overflow: hidden;
}

.article-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: sepia(0.2) brightness(0.9);
    transition: transform 0.4s ease, filter 0.3s ease;
}

.article-card:hover .article-thumb img {
    transform: scale(1.05);
    filter: sepia(0.4) brightness(0.85);
}

.article-body {
    padding: 1.5rem;
}

.article-tag {
    display: inline-block;
    background: var(--warm-orange);
    color: var(--cream);
    font-size: 0.7rem;
    padding: 2px 8px;
    letter-spacing: 0.05em;
    margin-bottom: 0.8rem;
}

.article-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark-brown);
    margin-bottom: 0.6rem;
    line-height: 1.5;
}

.article-excerpt {
    font-size: 0.82rem;
    color: var(--text-light);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 1.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: var(--text-light);
    font-family: 'Noto Sans SC', sans-serif;
}

/* =============================================
   分页
   ============================================= */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.pagination a, .pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    color: var(--text-medium);
    font-size: 0.85rem;
    transition: all 0.3s ease;
    font-family: 'Noto Sans SC', sans-serif;
}

.pagination a:hover, .pagination .current {
    background: var(--warm-orange);
    border-color: var(--warm-orange);
    color: var(--cream);
}

/* =============================================
   侧边栏
   ============================================= */
.content-with-sidebar {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3rem;
}

.sidebar-widget {
    background: var(--cream);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.sidebar-widget-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--dark-brown);
    margin-bottom: 1rem;
    padding-bottom: 0.6rem;
    border-bottom: 2px solid var(--warm-orange);
}

/* =============================================
   响应式设计
   ============================================= */
@media (max-width: 1024px) {
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }

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

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

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

@media (max-width: 768px) {
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.5rem; }

    .header-inner {
        padding: 0 1rem;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0; right: 0;
        background: var(--dark-brown);
        flex-direction: column;
        padding: 1rem;
        gap: 0.3rem;
        border-top: 2px solid var(--warm-orange);
    }

    .main-nav.open {
        display: flex;
    }

    .main-nav a {
        width: 100%;
        padding: 0.7rem 1rem;
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }

    .menu-toggle {
        display: flex;
    }

    .hero-banner {
        height: 60vh;
    }

    .story-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .ai-filter-showcase {
        grid-template-columns: 1fr 1fr;
    }

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

    .photo-item.large {
        grid-column: span 1;
        grid-row: span 1;
    }

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

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

    .section {
        padding: 3rem 0;
    }

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

@media (max-width: 480px) {
    .video-grid {
        grid-template-columns: 1fr;
    }

    .ai-filter-showcase {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 1.6rem;
    }

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

    .container {
        padding: 0 1rem;
    }
}

/* =============================================
   动画效果
   ============================================= */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* 胶片边框装饰 */
.film-border {
    position: relative;
    padding: 8px;
    background: var(--dark-brown);
}

.film-border::before, .film-border::after {
    content: '';
    position: absolute;
    top: 0; bottom: 0;
    width: 20px;
    background-image: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 8px,
        var(--cream) 8px,
        var(--cream) 14px
    );
    background-size: 20px 22px;
}

.film-border::before { left: 0; }
.film-border::after { right: 0; }

/* 数字统计 */
.stats-row {
    display: flex;
    justify-content: center;
    gap: 4rem;
    padding: 2rem 0;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--warm-orange);
    font-family: 'Noto Serif SC', serif;
    line-height: 1;
}

.stat-label {
    font-size: 0.82rem;
    color: var(--text-light);
    margin-top: 0.3rem;
    letter-spacing: 0.05em;
}

/* 标签云 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.tag {
    background: var(--beige);
    color: var(--text-medium);
    padding: 0.3rem 0.8rem;
    font-size: 0.78rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
}

.tag:hover {
    background: var(--warm-orange);
    color: var(--cream);
    border-color: var(--warm-orange);
}

/* 更新时间 */
.update-time {
    font-size: 0.78rem;
    color: var(--soft-gray);
    font-family: 'Noto Sans SC', sans-serif;
}


/* ============================================
   补充样式
   ============================================ */

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    color: var(--text-medium);
    font-size: 0.85rem;
    font-family: var(--font-serif);
    transition: all 0.3s ease;
    text-decoration: none;
}

.pagination a:hover {
    background: var(--warm-orange);
    color: var(--cream);
    border-color: var(--warm-orange);
}

.pagination .current {
    background: var(--dark-brown);
    color: var(--cream);
    border-color: var(--dark-brown);
}

/* 内容+侧边栏布局 */
.content-with-sidebar {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 3rem;
    align-items: start;
}

/* 侧边栏 */
.sidebar-widget {
    background: var(--beige);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.sidebar-widget-title {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    color: var(--dark-brown);
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--warm-orange);
    letter-spacing: 0.05em;
}

/* AI滤镜展示 */
.ai-filter-showcase {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.filter-item {
    position: relative;
    overflow: hidden;
}

.filter-item img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    display: block;
    filter: sepia(0.3) contrast(1.1);
    transition: filter 0.4s ease;
}

.filter-item:hover img {
    filter: sepia(0.6) contrast(1.2) saturate(0.8);
}

.filter-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(61,43,31,0.85));
    color: var(--cream);
    padding: 1rem 0.8rem 0.6rem;
    font-size: 0.8rem;
    font-family: var(--font-serif);
    letter-spacing: 0.05em;
}

/* 联系卡片 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.contact-card {
    background: rgba(245,240,232,0.08);
    border: 1px solid rgba(200,180,154,0.3);
    padding: 2rem;
    text-align: center;
}

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.contact-label {
    font-size: 0.8rem;
    color: var(--soft-gray);
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
    font-family: var(--font-sans);
}

.contact-value {
    font-size: 0.9rem;
    color: var(--cream);
    font-family: var(--font-serif);
    word-break: break-all;
}

.qr-placeholder {
    width: 80px;
    height: 80px;
    margin: 1rem auto 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 2px;
}

/* 合作伙伴网格 */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.partner-item {
    background: var(--beige);
    border: 1px solid var(--border-color);
    padding: 1.5rem 1rem;
    text-align: center;
    font-family: var(--font-serif);
    font-size: 0.85rem;
    color: var(--text-medium);
    transition: all 0.3s ease;
}

.partner-item:hover {
    background: var(--warm-beige);
    color: var(--dark-brown);
    border-color: var(--warm-orange);
}

/* 故事引用 */
.story-quote {
    border-left: 3px solid var(--warm-orange);
    padding: 0.8rem 1.2rem;
    margin: 1.2rem 0;
    background: var(--beige);
    font-style: italic;
    color: var(--text-medium);
    font-size: 0.9rem;
    line-height: 1.8;
}

/* 摄影师网格 */
.photographer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.photographer-card {
    background: var(--beige);
    border: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.photographer-card:hover {
    border-color: var(--warm-orange);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(61,43,31,0.12);
}

.photographer-avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 1rem;
    border: 3px solid var(--warm-orange);
}

.photographer-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photographer-name {
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--dark-brown);
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.photographer-title {
    font-size: 0.78rem;
    color: var(--warm-orange);
    margin-bottom: 0.8rem;
    letter-spacing: 0.05em;
}

.photographer-desc {
    font-size: 0.82rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* 评价网格 */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.review-card {
    background: var(--cream);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.review-card:hover {
    border-color: var(--warm-orange);
    box-shadow: 0 4px 15px rgba(61,43,31,0.08);
}

.review-text {
    font-size: 0.85rem;
    color: var(--text-medium);
    line-height: 1.8;
    margin-bottom: 1.2rem;
    font-style: italic;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.review-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--warm-orange);
    color: var(--cream);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-family: var(--font-serif);
    font-weight: 600;
    flex-shrink: 0;
}

.review-name {
    font-size: 0.85rem;
    color: var(--dark-brown);
    font-weight: 600;
    font-family: var(--font-serif);
}

.review-location {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.1rem;
}

.review-stars {
    font-size: 0.75rem;
    color: var(--warm-orange);
    margin-top: 0.1rem;
}

/* 统计行 */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 1rem;
}

/* 响应式补充 */
@media (max-width: 1024px) {
    .reviews-grid { grid-template-columns: repeat(2, 1fr); }
    .photographer-grid { grid-template-columns: repeat(2, 1fr); }
    .partners-grid { grid-template-columns: repeat(3, 1fr); }
    .ai-filter-showcase { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .content-with-sidebar { grid-template-columns: 1fr; }
    .reviews-grid { grid-template-columns: 1fr; }
    .photographer-grid { grid-template-columns: repeat(2, 1fr); }
    .partners-grid { grid-template-columns: repeat(2, 1fr); }
    .ai-filter-showcase { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .article-card[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 480px) {
    .photographer-grid { grid-template-columns: 1fr; }
    .partners-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-row { grid-template-columns: 1fr; }
}