/* ===========================
   蘑菇视频 - 东方雅奢风格CSS
   =========================== */

:root {
    --color-bg: #faf9f7;
    --color-text: #2c2c2c;
    --color-text-light: #7a7a7a;
    --color-accent: #8b7355;
    --color-accent-light: #c4a882;
    --color-border: #e8e4df;
    --color-white: #ffffff;
    --font-serif: 'Georgia', 'Noto Serif SC', serif;
    --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --shadow: 0 2px 20px rgba(0,0,0,0.06);
    --shadow-hover: 0 8px 40px rgba(0,0,0,0.12);
}

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

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

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 40px; }

/* ===========================
   导航栏
   =========================== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(250,249,247,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo .brand-text {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    color: var(--color-text);
}

.main-nav ul { list-style: none; display: flex; gap: 2.5rem; }

.main-nav a {
    font-size: 0.875rem;
    letter-spacing: 0.08em;
    color: var(--color-text-light);
    padding-bottom: 2px;
    border-bottom: 1px solid transparent;
}

.main-nav a:hover { color: var(--color-text); border-bottom-color: var(--color-accent); }

.search-box {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: 24px;
    padding: 6px 14px;
    transition: var(--transition);
}

.search-box:hover { border-color: var(--color-accent-light); }

.search-box input {
    border: none;
    background: transparent;
    font-size: 0.8rem;
    color: var(--color-text-light);
    outline: none;
    width: 140px;
    cursor: default;
    font-family: var(--font-sans);
}

.search-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    padding: 0;
    margin-left: 6px;
}

/* ===========================
   主内容
   =========================== */
.main-content { margin-top: 70px; }

/* ===========================
   首屏Hero
   =========================== */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    animation: heroZoom 12s ease-out forwards;
}

@keyframes heroZoom {
    from { transform: scale(1.05); }
    to { transform: scale(1.0); }
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-white);
    padding: 0 20px;
    animation: fadeInUp 1.2s ease-out 0.3s both;
}

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

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 400;
    letter-spacing: 0.15em;
    margin-bottom: 1rem;
    text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    letter-spacing: 0.1em;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.btn-primary {
    display: inline-block;
    padding: 14px 40px;
    border: 1px solid rgba(255,255,255,0.8);
    color: var(--color-white);
    font-size: 0.875rem;
    letter-spacing: 0.15em;
    transition: var(--transition);
    background: transparent;
}

.btn-primary:hover { background: rgba(255,255,255,0.15); }

.scroll-hint {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.7);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    animation: fadeInUp 1.2s ease-out 1s both;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.5);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% { transform: scaleY(1); opacity: 0.5; }
    50% { transform: scaleY(0.5); opacity: 1; }
}

.hero-tags {
    position: absolute;
    bottom: 40px;
    right: 60px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 6px;
    align-items: flex-end;
    animation: fadeInUp 1.2s ease-out 1.2s both;
}

.hero-tags span {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: rgba(255,255,255,0.6);
    border: 1px solid rgba(255,255,255,0.3);
    padding: 3px 10px;
}

/* ===========================
   章节通用
   =========================== */
section { padding: 100px 0; }

.chapter-header {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    margin-bottom: 60px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--color-border);
}

.chapter-num {
    font-family: var(--font-serif);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--color-accent);
}

.chapter-title {
    font-family: var(--font-serif);
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 400;
    letter-spacing: 0.1em;
}

/* ===========================
   品牌序章
   =========================== */
.brand-chapter { background-color: var(--color-white); }

.chapter-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.chapter-text p {
    font-size: 1rem;
    line-height: 2;
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
}

.brand-quote {
    border-left: 2px solid var(--color-accent);
    padding: 16px 24px;
    margin: 2rem 0;
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--color-accent);
    letter-spacing: 0.05em;
    font-style: italic;
}

.chapter-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.image-desc {
    padding: 12px 0;
    font-size: 0.75rem;
    color: var(--color-text-light);
    letter-spacing: 0.05em;
}

/* ===========================
   品牌理念
   =========================== */
.brand-concept { background-color: var(--color-bg); }

.concept-grid { display: flex; flex-direction: column; gap: 80px; }

.concept-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.concept-item.reverse { direction: rtl; }
.concept-item.reverse > * { direction: ltr; }

.concept-img img { width: 100%; height: 360px; object-fit: cover; }

.concept-text h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.concept-text p {
    font-size: 1rem;
    line-height: 2;
    color: var(--color-text-light);
}

/* ===========================
   视频卡片
   =========================== */
.brand-selection { background-color: var(--color-white); }

.video-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.video-card { cursor: pointer; transition: var(--transition); }
.video-card:hover { transform: translateY(-4px); }

.video-cover { position: relative; overflow: hidden; }

.video-cover img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.video-card:hover .video-cover img { transform: scale(1.04); }

.play-btn-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.25);
    opacity: 0;
    transition: var(--transition);
    color: var(--color-white);
}

.video-card:hover .play-btn-overlay { opacity: 1; }

.video-info {
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
}

.video-title {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.video-desc {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 10px;
}

.video-meta {
    display: flex;
    gap: 16px;
    font-size: 0.75rem;
    color: var(--color-text-light);
    letter-spacing: 0.05em;
}

/* ===========================
   用户评价
   =========================== */
.brand-reviews { background-color: var(--color-bg); }

.review-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.review-item {
    padding: 40px;
    border: 1px solid var(--color-border);
    background: var(--color-white);
    transition: var(--transition);
}

.review-item:hover { box-shadow: var(--shadow-hover); }

.review-text {
    font-family: var(--font-serif);
    font-size: 1rem;
    line-height: 1.9;
    color: var(--color-text);
    margin-bottom: 20px;
    font-style: italic;
}

.review-author {
    font-size: 0.8rem;
    color: var(--color-accent);
    letter-spacing: 0.08em;
}

/* ===========================
   FAQ
   =========================== */
.brand-faq { background-color: var(--color-white); }

.faq-list { display: flex; flex-direction: column; }

.faq-item {
    padding: 30px 0;
    border-bottom: 1px solid var(--color-border);
}

.faq-q {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.faq-a {
    font-size: 0.9rem;
    line-height: 1.9;
    color: var(--color-text-light);
    padding-left: 20px;
    border-left: 2px solid var(--color-border);
}

/* ===========================
   页脚
   =========================== */
.site-footer {
    background-color: #1a1a1a;
    color: rgba(255,255,255,0.7);
    padding: 60px 0 30px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-white);
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.footer-desc { font-size: 0.85rem; line-height: 1.8; opacity: 0.6; }

.link-group h4 {
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    color: rgba(255,255,255,0.5);
    margin-bottom: 16px;
}

.link-group ul { list-style: none; }
.link-group li { margin-bottom: 10px; }

.link-group a {
    font-size: 0.85rem;
    opacity: 0.6;
    transition: var(--transition);
}

.link-group a:hover { opacity: 1; color: var(--color-accent-light); }

.footer-qr { display: flex; gap: 20px; }

.qr-item { display: flex; flex-direction: column; align-items: center; gap: 8px; }

.qr-box {
    width: 80px;
    height: 80px;
    border: 1px solid rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    text-align: center;
    color: rgba(255,255,255,0.4);
}

.qr-item span { font-size: 0.7rem; opacity: 0.5; }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    opacity: 0.5;
}

.footer-bottom a { opacity: 0.8; transition: var(--transition); }
.footer-bottom a:hover { opacity: 1; }

.social-links { display: flex; gap: 20px; }

/* ===========================
   内页通用
   =========================== */
.page-header {
    background: var(--color-white);
    padding: 60px 0 40px;
    border-bottom: 1px solid var(--color-border);
}

.page-title {
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 400;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.breadcrumb { font-size: 0.8rem; color: var(--color-text-light); letter-spacing: 0.05em; }
.breadcrumb a { color: var(--color-accent); }

.inner-section { padding: 80px 0; }

/* ===========================
   关于页面
   =========================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.about-text h2 {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    margin-top: 40px;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border);
}

.about-text h2:first-child { margin-top: 0; }

.about-text p {
    font-size: 0.95rem;
    line-height: 2;
    color: var(--color-text-light);
}

.about-image img { width: 100%; height: 500px; object-fit: cover; }

/* ===========================
   画报页面
   =========================== */
.gallery-grid { display: flex; flex-direction: column; gap: 60px; }

.gallery-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding-bottom: 60px;
    border-bottom: 1px solid var(--color-border);
}

.gallery-item:last-child { border-bottom: none; }

.gallery-item:nth-child(even) .gallery-img { order: 2; }
.gallery-item:nth-child(even) .gallery-info { order: 1; }

.gallery-img img { width: 100%; height: 320px; object-fit: cover; }

.gallery-category {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    display: block;
    margin-bottom: 12px;
}

.gallery-info h3 {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}

.gallery-info p {
    font-size: 0.95rem;
    line-height: 1.9;
    color: var(--color-text-light);
    margin-bottom: 20px;
}

.read-more {
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    border-bottom: 1px solid var(--color-accent);
    padding-bottom: 2px;
    transition: var(--transition);
}

.read-more:hover { color: var(--color-text); border-bottom-color: var(--color-text); }

/* ===========================
   联系页面
   =========================== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info h2, .contact-form h2 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.contact-info > p {
    font-size: 0.95rem;
    line-height: 2;
    color: var(--color-text-light);
    margin-bottom: 30px;
}

.info-list { margin-bottom: 30px; }

.info-item {
    padding: 20px 0;
    border-bottom: 1px solid var(--color-border);
}

.info-item h3 {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 400;
    margin-bottom: 8px;
}

.info-item p, .contact-details p {
    font-size: 0.875rem;
    line-height: 1.8;
    color: var(--color-text-light);
}

.form-group { margin-bottom: 20px; }

.form-group label {
    display: block;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    color: var(--color-text-light);
    margin-bottom: 8px;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    background: var(--color-white);
    font-size: 0.9rem;
    font-family: var(--font-sans);
    color: var(--color-text);
    outline: none;
    transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus { border-color: var(--color-accent); }
.form-group textarea { resize: vertical; }

/* ===========================
   工艺页面
   =========================== */
.craft-timeline { display: flex; flex-direction: column; }

.timeline-item {
    padding: 40px 0 40px 30px;
    border-bottom: 1px solid var(--color-border);
    border-left: 2px solid var(--color-border);
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -5px;
    top: 44px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-accent);
}

.timeline-content h3 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
    color: var(--color-accent);
}

.timeline-content p {
    font-size: 0.95rem;
    line-height: 2;
    color: var(--color-text-light);
}

/* ===========================
   臻选页面
   =========================== */
.selection-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.selection-item { cursor: pointer; transition: var(--transition); }
.selection-item:hover { transform: translateY(-4px); }

.selection-img { position: relative; overflow: hidden; }

.selection-img img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.selection-item:hover .selection-img img { transform: scale(1.04); }

.selection-info {
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
}

.selection-info h3 {
    font-family: var(--font-serif);
    font-size: 0.9rem;
    font-weight: 400;
    margin-bottom: 6px;
}

.selection-info p {
    font-size: 0.8rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 8px;
}

.selection-meta {
    display: flex;
    gap: 12px;
    font-size: 0.7rem;
    color: var(--color-text-light);
}

/* ===========================
   动画
   =========================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ===========================
   响应式
   =========================== */
@media (max-width: 1024px) {
    .container { padding: 0 24px; }
    .video-gallery { grid-template-columns: repeat(2, 1fr); }
    .selection-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .site-header .container { height: auto; padding: 12px 16px; flex-wrap: wrap; gap: 8px; }
    .main-nav ul { gap: 1.2rem; flex-wrap: wrap; }
    .main-nav a { font-size: 0.8rem; }
    .search-container { display: none; }
    .main-content { margin-top: 100px; }
    section { padding: 60px 0; }
    .chapter-content, .concept-item, .about-content, .contact-wrapper { grid-template-columns: 1fr; gap: 40px; }
    .concept-item.reverse { direction: ltr; }
    .gallery-item { grid-template-columns: 1fr; }
    .gallery-item:nth-child(even) .gallery-img { order: 0; }
    .gallery-item:nth-child(even) .gallery-info { order: 0; }
    .video-gallery { grid-template-columns: 1fr; }
    .review-list { grid-template-columns: 1fr; }
    .selection-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-top { grid-template-columns: 1fr; gap: 30px; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
    .hero-tags { display: none; }
}

@media (max-width: 480px) {
    .selection-grid { grid-template-columns: 1fr; }
    .chapter-header { flex-direction: column; gap: 0.5rem; }
}