/* ============================================
   LV国际娱乐 · 光影梦境设计系统
   Stained Glass Dreamscape
   © 2024 Awwwards Design
   ============================================ */

/* ----- 基础重置 & 全局变量 ----- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-warm: #FEF8F3;
    --bg-cream: #FFFCF7;
    --bg-lavender: #F8F4FF;
    --coral: #FF7A5A;
    --coral-light: #FF9B82;
    --coral-dark: #E85D3F;
    --viola: #B896D6;
    --viola-light: #D4B8ED;
    --viola-dark: #8E6BAE;
    --gold: #F0C860;
    --gold-light: #F7DE8A;
    --mint: #6BC5B0;
    --mint-light: #95DCCB;
    --text-dark: #3A2C2C;
    --text-soft: #6B5A5A;
    --text-muted: rgba(58, 44, 44, 0.55);
    --shadow-soft: 0 8px 32px rgba(58, 44, 44, 0.07);
    --shadow-glow: 0 8px 32px rgba(255, 122, 90, 0.18);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

body {
    font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    overflow-x: hidden;
    background: var(--bg-warm);
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ----- 容器 & 区块 ----- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
    position: relative;
}

.section:nth-child(even) {
    background: var(--bg-cream);
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--coral), var(--gold), var(--viola), var(--mint));
    opacity: 0.4;
}

/* ----- 导航 — 固定顶部 · 彩色玻璃毛玻璃 ----- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(254, 248, 243, 0.82);
    backdrop-filter: blur(18px) saturate(1.2);
    -webkit-backdrop-filter: blur(18px) saturate(1.2);
    border-bottom: 1px solid rgba(255, 122, 90, 0.12);
    box-shadow: 0 2px 40px rgba(58, 44, 44, 0.04);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.25rem;
    text-decoration: none;
    color: var(--text-dark);
    letter-spacing: -0.02em;
    position: relative;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    background: linear-gradient(135deg, var(--coral), var(--gold));
    color: #fff;
    box-shadow: 0 4px 12px rgba(255, 122, 90, 0.3);
    transition: var(--transition);
}

.logo:hover .logo-icon {
    transform: rotate(-8deg) scale(1.05);
    box-shadow: 0 6px 20px rgba(255, 122, 90, 0.4);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.main-nav a {
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 550;
    color: var(--text-soft);
    transition: var(--transition);
    position: relative;
    padding: 4px 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2.5px;
    background: linear-gradient(90deg, var(--coral), var(--gold));
    border-radius: 4px;
    transition: var(--transition);
}

.main-nav a:hover {
    color: var(--coral-dark);
}

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

.nav-cta {
    padding: 10px 24px !important;
    border-radius: 50px !important;
    color: #fff !important;
    font-weight: 650 !important;
    background: linear-gradient(135deg, var(--coral), var(--coral-dark));
    box-shadow: 0 4px 16px rgba(255, 122, 90, 0.35);
    transition: var(--transition) !important;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 8px 28px rgba(255, 122, 90, 0.45) !important;
    color: #fff !important;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 6px;
    background: none;
    border: none;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--text-dark);
    border-radius: 4px;
    transition: var(--transition);
}

/* ----- Hero — 光影主视觉 ----- */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(160deg, var(--bg-warm) 0%, var(--bg-lavender) 100%);
    overflow: hidden;
    padding-top: 72px;
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 122, 90, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(184, 150, 214, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 640px;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    color: var(--text-dark);
    box-shadow: 0 2px 12px rgba(240, 200, 96, 0.3);
}

.hero h1 {
    font-size: 3.2rem;
    line-height: 1.15;
    margin-bottom: 20px;
    font-weight: 850;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--text-dark) 40%, var(--coral-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-soft);
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-glow);
    position: relative;
}

.hero-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 122, 90, 0.15), rgba(184, 150, 214, 0.15));
    border-radius: var(--radius-lg);
    z-index: 1;
    pointer-events: none;
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.hero-image:hover img {
    transform: scale(1.02);
}

/* ----- 按钮 — 彩色糖果质感 ----- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 650;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: var(--transition);
    letter-spacing: 0.01em;
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--coral), var(--coral-dark));
    box-shadow: 0 4px 20px rgba(255, 122, 90, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 32px rgba(255, 122, 90, 0.5);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--coral);
    color: var(--coral-dark);
}

.btn-outline:hover {
    background: rgba(255, 122, 90, 0.08);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(255, 122, 90, 0.15);
}

/* ----- 标签/标题 — 优雅排版 ----- */
.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 12px;
    color: var(--coral);
    position: relative;
    padding-left: 36px;
}

.section-label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 24px;
    height: 2.5px;
    background: linear-gradient(90deg, var(--coral), var(--gold));
    border-radius: 4px;
    transform: translateY(-50%);
}

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    line-height: 1.25;
    color: var(--text-dark);
}

.section-desc {
    max-width: 600px;
    color: var(--text-soft);
    margin-bottom: 48px;
    font-size: 1.05rem;
    line-height: 1.7;
}

/* ----- 卡片网格 — 彩色玻璃卡片 ----- */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 28px;
}

.category-card {
    border-radius: var(--radius-md);
    padding: 32px 28px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 122, 90, 0.1);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--coral), var(--gold), var(--viola));
    opacity: 0;
    transition: var(--transition);
}

.category-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-soft);
    border-color: rgba(255, 122, 90, 0.2);
}

.category-card:hover::before {
    opacity: 1;
}

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.4rem;
    background: linear-gradient(135deg, var(--bg-lavender), var(--viola-light));
    color: var(--viola-dark);
    transition: var(--transition);
}

.category-card:hover .card-icon {
    background: linear-gradient(135deg, var(--coral-light), var(--coral));
    color: #fff;
    transform: scale(1.05) rotate(4deg);
}

.category-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.category-card p {
    color: var(--text-soft);
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

.card-link {
    font-weight: 650;
    font-size: 0.85rem;
    text-decoration: none;
    color: var(--coral);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.card-link:hover {
    color: var(--coral-dark);
    gap: 12px;
}

/* ----- 特性块 — 图文交错 · 光影层叠 ----- */
.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.feature-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    position: relative;
}

.feature-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 122, 90, 0.08), rgba(184, 150, 214, 0.08));
    border-radius: var(--radius-lg);
    pointer-events: none;
}

.feature-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.feature-image:hover img {
    transform: scale(1.02);
}

.feature-text h3 {
    font-size: 1.6rem;
    font-weight: 750;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.feature-text > p {
    color: var(--text-soft);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
    color: var(--text-dark);
}

.feature-list li::before {
    content: '✦';
    font-weight: 700;
    color: var(--coral);
    font-size: 1.1rem;
}

/* ----- 数据条 — 彩色数字陈列 ----- */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    text-align: center;
}

.stat-item {
    padding: 32px 20px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1px solid rgba(184, 150, 214, 0.12);
    transition: var(--transition);
    position: relative;
}

.stat-item::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--coral), var(--gold), var(--viola), var(--mint));
    opacity: 0;
    z-index: -1;
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-4px);
}

.stat-item:hover::before {
    opacity: 0.2;
}

.stat-number {
    font-size: 2.6rem;
    font-weight: 850;
    line-height: 1.1;
    background: linear-gradient(135deg, var(--coral), var(--viola));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.03em;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-soft);
    margin-top: 8px;
    font-weight: 500;
}

/* ----- 内容墙 — 图片卡片瀑布 ----- */
.content-wall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 28px;
}

.content-wall-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 122, 90, 0.08);
    transition: var(--transition);
}

.content-wall-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-soft);
    border-color: rgba(255, 122, 90, 0.15);
}

.content-wall-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: var(--transition);
}

.content-wall-item:hover img {
    transform: scale(1.03);
}

.content-wall-body {
    padding: 24px 22px 26px;
}

.content-wall-body h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.content-wall-body p {
    color: var(--text-soft);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0;
}

.content-wall-body .tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    color: var(--text-dark);
    margin-bottom: 10px;
}

/* ----- FAQ — 彩色折叠手风琴 ----- */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid rgba(184, 150, 214, 0.15);
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: var(--transition);
}

.faq-item:hover {
    border-color: rgba(184, 150, 214, 0.3);
    background: rgba(255, 255, 255, 0.6);
}

.faq-item .faq-question {
    padding: 20px 24px;
    font-weight: 650;
    font-size: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-dark);
    transition: var(--transition);
}

.faq-item .faq-question::after {
    content: '+';
    font-size: 1.3rem;
    font-weight: 300;
    color: var(--viola);
    transition: var(--transition);
}

.faq-item.open .faq-question::after {
    transform: rotate(45deg);
    color: var(--coral);
}

.faq-item .faq-answer {
    padding: 0 24px 20px;
    display: none;
    color: var(--text-soft);
    font-size: 0.95rem;
    line-height: 1.7;
}

.faq-item.open .faq-answer {
    display: block;
    animation: fadeSlide 0.35s ease;
}

@keyframes fadeSlide {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ----- CTA横幅 — 渐变光晕 ----- */
.cta-banner {
    padding: 64px 40px;
    text-align: center;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--coral) 0%, var(--viola) 50%, var(--mint) 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1) 0%, transparent 60%);
    pointer-events: none;
}

.cta-banner h2 {
    color: #fff;
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.cta-banner p {
    color: rgba(255, 255, 255, 0.85);
    max-width: 520px;
    margin: 0 auto 28px;
    font-size: 1.05rem;
    position: relative;
    z-index: 1;
}

.cta-banner .btn-primary {
    background: #fff;
    color: var(--coral-dark);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
    position: relative;
    z-index: 1;
}

.cta-banner .btn-primary:hover {
    background: #fff;
    color: var(--coral-dark);
    box-shadow: 0 8px 36px rgba(0, 0, 0, 0.2);
    transform: translateY(-3px);
}

/* ----- 页脚 — 暖色分层 ----- */
.site-footer {
    padding: 64px 0 32px;
    background: var(--bg-cream);
    border-top: 1px solid rgba(184, 150, 214, 0.1);
}

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

.footer-brand p {
    color: var(--text-soft);
    font-size: 0.92rem;
    line-height: 1.7;
    margin-top: 12px;
    max-width: 320px;
}

.footer-col h5 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 18px;
    color: var(--text-dark);
}

.footer-col a {
    display: block;
    text-decoration: none;
    color: var(--text-soft);
    font-size: 0.9rem;
    padding: 5px 0;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--coral);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(58, 44, 44, 0.06);
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ----- 工具类 ----- */
.text-accent {
    color: var(--coral);
}

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

.seo-description {
    max-width: 600px;
    margin: 0 auto 48px;
    color: var(--text-soft);
    font-size: 1rem;
    line-height: 1.7;
}

.mt-0 {
    margin-top: 0;
}

.mb-0 {
    margin-bottom: 0;
}

/* ----- 响应式设计 — 优雅断点 ----- */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.6rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .feature-block {
        gap: 40px;
    }

    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-content {
        margin: 0 auto;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero p {
        margin: 0 auto 28px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        max-width: 500px;
        margin: 0 auto;
    }

    .feature-block {
        grid-template-columns: 1fr;
        gap: 36px;
        text-align: center;
    }

    .feature-list li {
        justify-content: center;
    }

    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .stat-number {
        font-size: 2.2rem;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
        text-align: center;
    }

    .footer-brand p {
        margin: 12px auto 0;
    }

    .section {
        padding: 72px 0;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .main-nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .main-nav.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(254, 248, 243, 0.98);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        padding: 24px 28px;
        gap: 20px;
        box-shadow: 0 20px 40px rgba(58, 44, 44, 0.06);
        border-bottom: 1px solid rgba(255, 122, 90, 0.08);
    }

    .main-nav.open a {
        font-size: 1rem;
        padding: 6px 0;
    }

    .main-nav.open .nav-cta {
        text-align: center;
        padding: 12px 24px !important;
    }

    .main-nav.open a::after {
        display: none;
    }

    .cta-banner {
        padding: 48px 24px;
    }

    .cta-banner h2 {
        font-size: 1.6rem;
    }
}

@media (max-width: 480px) {
    .cards-grid,
    .content-wall,
    .stats-bar {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

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

    .hero h1 {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .hero {
        min-height: auto;
        padding: 100px 0 60px;
    }

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

    .container {
        padding: 0 16px;
    }

    .header-inner {
        padding: 0 16px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }

    .section-label {
        font-size: 0.7rem;
    }

    .cta-banner h2 {
        font-size: 1.4rem;
    }
}

/* ----- 额外细节：滚动条 & 选中样式 ----- */
::selection {
    background: rgba(255, 122, 90, 0.25);
    color: var(--text-dark);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-warm);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--coral-light), var(--viola-light));
    border-radius: 20px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(var(--coral), var(--viola));
}