/* ============================================================
   ZOO DISCOVERY - 动物园国际自然营地
   全新设计系统 v2.0 - 自然教育官网最佳实践
   ============================================================ */

/* ===== 1. 设计令牌 ===== */
:root {
    /* 主色 - 近黑炭灰（承载文字与深色块，与金黄强对比） */
    --forest: #1A1A1A;
    --forest-light: #333333;
    --forest-dark: #0F0F0F;

    /* 背景 - 纯白为主 */
    --cream: #F7F7F7;
    --cream-light: #FCFCFC;
    --sand: #F0F0F0;
    --white: #FFFFFF;

    /* 强调 - VI主色 金黄 #FFB71B（品牌识别，所有强调点） */
    --gold: #FFB71B;
    --gold-light: #FFCC4D;
    --gold-dark: #E09E00;
    --gold-text: #8A5E00;
    /* 金黄文字在白底上使用，保证可读性 */

    /* 文字 - 纯中性炭灰 */
    --ink: #5b5b5b;
    --ink-soft: #4A4A4A;
    --ink-muted: #8A8A8A;
    --white-soft: rgba(255, 255, 255, 0.88);

    /* 功能色 */
    --leaf: #6B8E6B;
    --earth: #8B7355;

    /* 字体 */
    --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* 间距 */
    --space-section: 120px;
    --container: 1280px;

    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 16px;

    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10);

    /* 过渡 */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.3s var(--ease);
}

/* ===== 2. 基础重置 ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.7;
    color: var(--ink);
    background: var(--cream-light);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

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

ul,
ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ===== 3. 布局 ===== */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: var(--space-section) 0;
}

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

.bg-cream {
    background: var(--cream);
}

.bg-white {
    background: var(--white);
}

.bg-forest {
    background: var(--forest);
    color: var(--white);
}

/* ===== 4. 排版 ===== */
.eyebrow {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gold-text);
    margin-bottom: 16px;
    display: inline-block;
}

.eyebrow-light {
    color: var(--gold-light);
}

.section-title {
    font-family: var(--font-sans);
    font-size: clamp(1.8rem, 2.5vw, 2.0rem);
    font-weight: 600;
    line-height: 1.25;
    color: var(--ink);
    margin-bottom: 20px;
}

.section-title.light {
    color: var(--white);
}

.section-desc {
    font-size: 1.05rem;
    color: var(--ink-soft);
    max-width: 840px;
    line-height: 1.8;
}

.section-desc.light {
    color: var(--white-soft);
}

.section-header {
    margin-bottom: 64px;
}

.section-header.centered {
    text-align: center;
}

.section-header.centered .section-desc {
    margin: 0 auto;
}

/* ===== 5. 导航 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 72px;
    display: flex;
    align-items: center;
    background: rgba(247, 243, 237, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(45, 74, 62, 0.08);
    transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo img {
    height: 36px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--ink-soft);
    position: relative;
    padding: 8px 0;
    transition: color var(--transition);
}

.nav-links a:hover {
    color: var(--forest);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold);
    transition: width var(--transition);
}

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

.nav-cta {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-cta .lang {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ink-soft);
    padding: 6px 14px;
    border: 1px solid rgba(45, 74, 62, 0.2);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-cta .lang:hover {
    border-color: var(--gold-text);
    color: var(--gold-text);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--ink);
    transition: all var(--transition);
}

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

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s var(--ease);
    z-index: 999;
}

.mobile-menu.active {
    max-height: 500px;
}

.mobile-menu .container {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mobile-menu a {
    padding: 14px 0;
    font-size: 1rem;
    color: var(--ink);
    border-bottom: 1px solid rgba(45, 74, 62, 0.06);
}

@media (max-width: 900px) {
    .nav-links {
        display: none;
    }

    .hamburger {
        display: flex;
    }
}

/* ===== 6. 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gold-light);
    color: var(--forest);
}

.btn-primary:hover {
    background: var(--gold-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-gold {
    background: var(--gold);
    color: var(--forest);
}

.btn-gold:hover {
    background: var(--gold-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--forest);
    border: 1.5px solid var(--forest);
}

.btn-outline:hover {
    background: var(--forest);
    color: var(--white);
}

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-light:hover {
    background: var(--white);
    color: var(--forest);
    border-color: var(--white);
}

.btn-ghost {
    background: transparent;
    color: var(--ink-soft);
    padding: 8px 16px;
}

.btn-ghost:hover {
    color: var(--gold-text);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.875rem;
}

/* ===== 7. Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(0, 0, 0, 0.42) 0%, rgba(0, 0, 0, 0.18) 45%, rgba(0, 0, 0, 0.08) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 120px 0 80px;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--white);
    margin-bottom: 28px;
}

.hero-eyebrow .dot {
    width: 8px;
    height: 8px;
    background: var(--gold);
    border-radius: 50%;
    animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(0.85);
    }
}

.hero-title {
    font-family: var(--font-sans);
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.15;
    color: var(--white);
    margin-bottom: 28px;
    max-width: 720px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero-title .accent {
    color: var(--gold-light);
}

.hero-subtitle {
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    color: var(--white-soft);
    max-width: 560px;
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 56px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}

.hero-stat {
    display: flex;
    flex-direction: column;
}

.hero-stat-num {
    font-family: var(--font-sans);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--gold-light);
    line-height: 1;
}

.hero-stat-label {
    font-size: 0.85rem;
    color: var(--white-soft);
    margin-top: 8px;
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    color: var(--white-soft);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-align: center;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(-8px);
    }
}

/* ===== 8. 关于营地 ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image-overlay {
    position: absolute;
    inset: 0;
    border-radius: var(--radius-sm);
    background: linear-gradient(100deg, rgba(0, 0, 0, 0.42) 0%, rgba(0, 0, 0, 0.18) 45%, rgba(0, 0, 0, 0.08) 100%);
    z-index: 1;
    pointer-events: none;
}

.about-image img {
    width: 100%;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    object-fit: cover;
}

.about-image .badge {
    position: absolute;
    bottom: -24px;
    right: -24px;
    background: var(--white);
    padding: 24px 32px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    max-width: 260px;
    z-index: 2;
}

.about-image .badge .quote {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    color: var(--ink);
    line-height: 1.5;
    margin-bottom: 8px;
}

.about-image .badge .author {
    font-size: 0.85rem;
    color: var(--gold-text);
    font-weight: 600;
}

.about-text .lead {
    font-size: 1.15rem;
    color: var(--ink);
    line-height: 1.8;
    margin-bottom: 24px;
    font-weight: 500;
}

.about-text p {
    color: var(--ink-soft);
    margin-bottom: 16px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 32px;
}

.about-feature {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.about-feature .icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--cream);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--forest);
    font-size: 1.1rem;
}

.about-feature .text h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 4px;
}

.about-feature .text p {
    font-size: 0.85rem;
    color: var(--ink-muted);
    margin: 0;
}

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .about-image .badge {
        position: relative;
        bottom: 0;
        right: 0;
        margin-top: 16px;
    }
}

/* ===== 9. 教育理念 - 交错轮播式 ===== */
.philosophy-split {
    display: grid;
    grid-template-columns: 55% 45%;
    gap: 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--sand);
    min-height: 560px;
}

/* 左侧大图轮播 */
.philo-stage {
    position: relative;
    overflow: hidden;
    min-height: 560px;
}

.philo-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.7s var(--ease), visibility 0.7s var(--ease);
}

.philo-slide.active {
    opacity: 1;
    visibility: visible;
}

.philo-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.philo-slide-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.2) 50%, rgba(0, 0, 0, 0) 100%);
}

.philo-slide-num {
    position: absolute;
    bottom: 32px;
    left: 32px;
    font-size: 6rem;
    font-weight: 800;
    color: var(--gold);
    line-height: 1;
    z-index: 2;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

/* 底部进度条 */
.philo-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    height: 4px;
    z-index: 3;
}

.philo-bar {
    flex: 1;
    background: rgba(255, 255, 255, 0.25);
    cursor: pointer;
    transition: background var(--transition);
}

.philo-bar.active {
    background: var(--gold);
}

.philo-bar:hover:not(.active) {
    background: rgba(255, 255, 255, 0.45);
}

/* 右侧理念列表 */
.philo-list {
    display: flex;
    flex-direction: column;
    padding: 8px 0;
}

.philo-item {
    padding: 28px 36px;
    cursor: pointer;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: background var(--transition), padding var(--transition);
    position: relative;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

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

.philo-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gold);
    transform: scaleY(0);
    transition: transform var(--transition);
    transform-origin: center;
}

.philo-item.active::before {
    transform: scaleY(1);
}

.philo-item.active {
    background: rgba(255, 183, 27, 0.06);
}

.philo-item-head {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 0;
    transition: margin-bottom var(--transition);
}

.philo-item.active .philo-item-head {
    margin-bottom: 16px;
}

.philo-item-num {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--ink-muted);
    transition: color var(--transition);
    min-width: 28px;
}

.philo-item.active .philo-item-num {
    color: var(--gold);
}

.philo-item h3 {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--ink-soft);
    transition: color var(--transition);
    flex: 1;
}

.philo-item.active h3 {
    color: var(--ink);
}

.philo-item-arrow {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1.5px solid rgba(0, 0, 0, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ink-muted);
    font-size: 0.8rem;
    transition: all var(--transition);
}

.philo-item.active .philo-item-arrow {
    background: var(--gold);
    border-color: var(--gold);
    color: var(--forest);
    transform: rotate(-45deg);
}

.philo-item:hover .philo-item-arrow {
    border-color: var(--gold);
    color: var(--gold);
}

.philo-item-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s var(--ease), opacity 0.4s var(--ease);
    opacity: 0;
    padding-left: 48px;
}

.philo-item.active .philo-item-body {
    max-height: 200px;
    opacity: 1;
}

.philo-item-body p {
    font-size: 0.9rem;
    color: var(--ink-soft);
    line-height: 1.8;
}

@media (max-width: 900px) {
    .philosophy-split {
        grid-template-columns: 1fr;
    }

    .philo-stage {
        min-height: 400px;
    }

    .philo-slide-num {
        font-size: 4rem;
        bottom: 24px;
        left: 24px;
    }

    .philo-item {
        padding: 20px 24px;
    }

    .philo-item h3 {
        font-size: 1.15rem;
    }
}

/* ===== 10. 营地课程 ===== */
.course-filters {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 48px;
}

.filter-btn {
    padding: 10px 24px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--ink-soft);
    background: var(--white);
    border: 1px solid rgba(45, 74, 62, 0.12);
    border-radius: 50px;
    transition: all var(--transition);
}

.filter-btn:hover {
    border-color: var(--gold-text);
    color: var(--gold-text);
}

.filter-btn.active {
    background: var(--forest);
    color: var(--white);
    border-color: var(--forest);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.course-card {
    background: var(--white);
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.course-card .img-wrap {
    height: 320px;
    overflow: hidden;
    position: relative;
}

.course-card .img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--ease);
}

.course-card:hover .img-wrap img {
    transform: scale(1.08);
}

.course-card .tag {
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--forest);
}

.course-card .content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-card h3 {
    font-family: var(--font-sans);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 10px;
}

.course-card .desc {
    font-size: 0.875rem;
    color: var(--ink-soft);
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
}

.course-card .meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid rgba(45, 74, 62, 0.08);
}

.course-card .meta .age {
    font-size: 0.8rem;
    color: var(--ink-muted);
}

.course-card .meta .link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gold-text);
    transition: color var(--transition);
}

.course-card .meta .link:hover {
    color: var(--gold-dark);
}

@media (max-width: 900px) {
    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .courses-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== 11. 营地配套 ===== */
.facilities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.facility-card {
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
    height: 420px;
    box-shadow: var(--shadow-md);
    transition: box-shadow var(--transition);
}

.facility-card:hover {
    box-shadow: var(--shadow-lg);
}

.facility-card .bg-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.facility-card .overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0.3) 50%, rgba(0, 0, 0, 0.05) 100%);
}

.facility-card .content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 32px;
    z-index: 2;
}

.facility-card .tag-small {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--gold-light);
    margin-bottom: 10px;
    text-transform: uppercase;
}

.facility-card h3 {
    font-family: var(--font-sans);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 10px;
}

.facility-card p {
    font-size: 0.875rem;
    color: var(--white-soft);
    line-height: 1.7;
}

@media (max-width: 900px) {
    .facilities-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== 12. ZOO TRIP ===== */
.trip-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
    align-items: center;
}

.trip-text .lead {
    font-family: var(--font-sans);
    font-size: 1.3rem;
    color: var(--ink);
    line-height: 1.6;
    margin-bottom: 24px;
    font-weight: 500;
}

.trip-text p {
    color: var(--ink-soft);
    margin-bottom: 16px;
}

.trip-features {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.trip-feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.trip-feature .num {
    flex-shrink: 0;
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gold-text);
    width: 48px;
}

.trip-feature .text h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 6px;
}

.trip-feature .text p {
    font-size: 0.875rem;
    color: var(--ink-soft);
    margin: 0;
}

.trip-image {
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 4/3;
}

.trip-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@media (max-width: 768px) {
    .trip-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

/* ===== 13. 营地风采 ===== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 240px;
    gap: 16px;
}

.gallery-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
}

.gallery-item.tall {
    grid-row: span 2;
}

.gallery-item.wide {
    grid-column: span 2;
}

.gallery-item.wideX {
    grid-column: span 3;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== 14. 合作咨询 ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-info .info-item {
    display: flex;
    gap: 20px;
    margin-bottom: 32px;
}

.contact-info .info-item .icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--cream);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold);
    font-size: 1.2rem;
}

.contact-info .info-item .content h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 6px;
}

.contact-info .info-item .content p {
    font-size: 0.95rem;
    color: var(--ink-soft);
    line-height: 1.6;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
}

.contact-form h3 {
    font-family: var(--font-sans);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 24px;
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--ink);
    background: var(--cream-light);
    border: 1px solid rgba(45, 74, 62, 0.12);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--gold-text);
    background: var(--white);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ===== 15. 页脚 ===== */
.footer {
    background: var(--forest);
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 64px;
}

.footer-brand img {
    height: 128px;
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.8;
    max-width: 320px;
}

.footer-col h4 {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--white);
    margin-bottom: 20px;
    text-transform: uppercase;
}

.footer-col li {
    margin-bottom: 12px;
}

.footer-col a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition);
}

.footer-col a:hover {
    color: var(--gold-light);
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

/* ===== 16. 回到顶部 ===== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--gold);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 998;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--gold);
    transform: translateY(-4px);
}

/* ===== 17. 动画 ===== */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

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

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }

    .fade-up {
        opacity: 1;
        transform: none;
    }
}

/* ===== 18. 户外天地 ===== */
.outdoor-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.outdoor-card {
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
    height: 300px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition), transform var(--transition);
}

.outdoor-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.outdoor-card .bg-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--ease);
}

.outdoor-card:hover .bg-img {
    transform: scale(1.08);
}

.outdoor-card .overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(50, 54, 51, 0.75) 0%, rgba(0, 0, 0, 0.2) 60%, rgba(0, 0, 0, 0) 100%);
}

.outdoor-card .content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px;
    z-index: 2;
}

.outdoor-card .icon-circle {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: 12px;
}

.outdoor-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 6px;
}

.outdoor-card .tag-line {
    font-size: 0.8rem;
    color: var(--gold-light);
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}

.outdoor-card p {
    font-size: 0.85rem;
    color: var(--white-soft);
    line-height: 1.6;
}

.outdoor-features-bar {
    margin-top: 48px;
    padding: 24px 32px;
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-sm);
    display: flex;
    flex-wrap: wrap;
    gap: 16px 32px;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.outdoor-features-bar .item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--ink-soft);
    font-weight: 500;
}

.outdoor-features-bar .item i {
    color: var(--gold-text);
}

@media (max-width: 900px) {
    .outdoor-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .outdoor-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== 19. 工坊详情 ===== */
.workshop-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.workshop-card {
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
    display: flex;
    flex-direction: column;
}

.workshop-card img {
    object-fit: cover;
    border-radius: 8px;
}

.workshop-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.workshop-card .head {
    padding: 24px 28px 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.workshop-card .head .brand {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--gold-text);
    margin-bottom: 6px;
}

.workshop-card .head h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 4px;
}

.workshop-card .head .meta {
    font-size: 0.8rem;
    color: var(--ink-muted);
}

.workshop-card .body {
    padding: 20px 28px;
    flex: 1;
}

.workshop-card .activity {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px dashed rgba(0, 0, 0, 0.06);
}

.workshop-card .activity:last-child {
    border-bottom: none;
}

.workshop-card .activity .dot {
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--gold);
    margin-top: 8px;
}

.workshop-card .activity .text {
    flex: 1;
}

.workshop-card .activity .name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 2px;
}

.workshop-card .activity .info {
    font-size: 0.8rem;
    color: var(--ink-muted);
}

.workshop-pricing-bar {
    margin-top: 40px;
    padding: 28px 40px;
    background: var(--sand);
    color: var(--white);
    border-radius: var(--radius-sm);
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    justify-content: space-around;
    align-items: center;
}

.workshop-pricing-bar .price-item {
    text-align: center;
}

.workshop-pricing-bar .price-item .num {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--gold);
}

.workshop-pricing-bar .price-item .label {
    font-size: 0.8rem;
    color: var(--ink-soft);
    margin-top: 4px;
}

.workshop-pricing-bar .divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
}

.workshop-pricing-bar .note {
    font-size: 0.85rem;
    color: var(--ink-soft);
    max-width: 240px;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .workshop-list {
        grid-template-columns: 1fr;
    }

    .workshop-pricing-bar {
        flex-direction: column;
        gap: 20px;
    }

    .workshop-pricing-bar .divider {
        display: none;
    }
}

/* ===== 20. 集团时间线 ===== */
.timeline {
    position: relative;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: rgba(45, 74, 62, 0.12);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 0 40px 40px 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding: 0 0 40px 40px;
    text-align: left;
}

.timeline-item .dot {
    position: absolute;
    top: 6px;
    right: -7px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--gold);
    border: 3px solid var(--white);
    box-shadow: 0 0 0 2px var(--gold);
    z-index: 2;
}

.timeline-item:nth-child(even) .dot {
    right: auto;
    left: -7px;
}

.timeline-item .year {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--forest);
    margin-bottom: 6px;
}

.timeline-item .desc {
    font-size: 0.9rem;
    color: var(--ink-soft);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
    }

    .timeline-item,
    .timeline-item:nth-child(even) {
        width: 100%;
        margin-left: 0;
        padding: 0 0 24px 48px;
        text-align: left;
    }

    .timeline-item .dot,
    .timeline-item:nth-child(even) .dot {
        left: 13px;
        right: auto;
    }
}

/* ===== 21. 课程标签 ===== */
.course-values {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
}

.value-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 500;
    padding: 3px 10px;
    border-radius: 50px;
    background: rgba(45, 74, 62, 0.06);
    color: var(--forest);
}

.course-card .meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--ink-muted);
    margin-bottom: 12px;
}

.course-card .meta-row span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.course-card .price-tag {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gold-text);
}

/* ===== 22. ZOO TRIP 三级体系 ===== */
.trip-tiers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.trip-tier {
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-sm);
    padding: 32px;
    position: relative;
    transition: box-shadow var(--transition), transform var(--transition);
}

.trip-tier:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.trip-tier .tier-num {
    position: absolute;
    top: 24px;
    right: 28px;
    font-size: 3rem;
    font-weight: 700;
    color: rgba(45, 74, 62, 0.06);
    line-height: 1;
}

.trip-tier .tier-label {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--gold-text);
    margin-bottom: 8px;
}

.trip-tier h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 12px;
}

.trip-tier .tier-desc {
    font-size: 0.875rem;
    color: var(--ink-soft);
    line-height: 1.7;
    margin-bottom: 20px;
}

.trip-tier .tier-list {
    list-style: none;
    padding: 0;
}

.trip-tier .tier-list li {
    font-size: 0.85rem;
    color: var(--ink-soft);
    padding: 6px 0 6px 20px;
    position: relative;
}

.trip-tier .tier-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--gold-text);
    font-weight: 700;
}

@media (max-width: 900px) {
    .trip-tiers {
        grid-template-columns: 1fr;
    }
}

/* ===== 23. 特色项目 ===== */
.special-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.special-card {
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: var(--white);
    display: flex;
    flex-direction: column;
    transition: box-shadow var(--transition), transform var(--transition);
}

.special-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}

.special-card .img-wrap {
    height: 420px;
    overflow: hidden;
    position: relative;
}

.special-card .img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--ease);
}

.special-card:hover .img-wrap img {
    transform: scale(1.06);
}

.special-card .special-img-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(0, 0, 0, 0.42) 0%, rgba(0, 0, 0, 0.18) 45%, rgba(0, 0, 0, 0.08) 100%);
    z-index: 1;
    pointer-events: none;
}

.special-card .img-wrap .badge-corner {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--gold);
    color: var(--forest);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    z-index: 2;
}

.special-card .content {
    padding: 28px;
    flex: 1;
}

.special-card .content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 8px;
}

.special-card .content .en {
    font-size: 0.8rem;
    color: var(--gold-text);
    font-weight: 600;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.special-card .content p {
    font-size: 0.9rem;
    color: var(--ink-soft);
    line-height: 1.7;
    margin-bottom: 20px;
}

.special-card .specs {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    padding-top: 16px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.special-card .specs .spec {
    text-align: center;
}

.special-card .specs .spec .val {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--forest);
}

.special-card .specs .spec .lbl {
    font-size: 0.75rem;
    color: var(--ink-muted);
    margin-top: 2px;
}

@media (max-width: 768px) {
    .special-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== 24. 营地规模数据条 ===== */
.camp-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 48px;
    padding: 40px;
    background: var(--forest);
    border-radius: var(--radius-lg);
    color: var(--white);
}

.camp-stats .stat {
    text-align: center;
}

.camp-stats .stat .num {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gold-light);
    line-height: 1;
}

.camp-stats .stat .label {
    font-size: 0.85rem;
    color: var(--white-soft);
    margin-top: 8px;
}

@media (max-width: 768px) {
    .camp-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
        padding: 28px;
    }
}

/* ===== 25. 社交二维码按钮 + 弹窗 ===== */
.social-qr-links {
    display: flex;
    gap: 12px;
    margin-top: 14px;
}

.social-qr-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--white);
    transition: all var(--transition);
}

.social-qr-btn i {
    font-size: 1.1rem;
}

.social-qr-btn.wechat {
    background: #07C160;
}

.social-qr-btn.wechat:hover {
    background: #06A852;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(7, 193, 96, 0.3);
}

.social-qr-btn.xiaohongshu {
    background: #E6162D;
}

.social-qr-btn.xiaohongshu:hover {
    background: #C81428;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(230, 22, 45, 0.3);
}

/* 二维码弹窗 */
.qr-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s var(--ease), visibility 0.3s var(--ease);
}

.qr-modal.show {
    opacity: 1;
    visibility: visible;
}

.qr-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(6px);
}

.qr-modal-box {
    position: relative;
    z-index: 2;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 36px 32px;
    max-width: 360px;
    width: calc(100% - 32px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
    transform: scale(0.9);
    transition: transform 0.3s var(--ease);
}

.qr-modal.show .qr-modal-box {
    transform: scale(1);
}

.qr-modal-close {
    position: absolute;
    top: -14px;
    right: -14px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--forest);
    color: var(--white);
    border: none;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition), background var(--transition);
}

.qr-modal-close:hover {
    transform: rotate(90deg);
    background: var(--gold);
    color: var(--forest);
}

.qr-modal-header {
    text-align: center;
    margin-bottom: 24px;
}

.qr-modal-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 6px;
}

.qr-modal-header p {
    font-size: 0.85rem;
    color: var(--ink-muted);
}

.qr-modal-img-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

.qr-modal-img-wrap img {
    width: 220px;
    height: 220px;
    object-fit: contain;
    border-radius: var(--radius-md);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: var(--shadow-sm);
}

.qr-modal-save {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--gold-light);
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background var(--transition);
}

.qr-modal-save:hover {
    background: var(--gold);
    color: var(--forest);
}

@media (max-width: 480px) {
    .qr-modal-box {
        padding: 32px 24px 24px;
    }

    .qr-modal-img-wrap img {
        width: 180px;
        height: 180px;
    }
}